CA2189184C - Door mirror with a small dead angle - Google Patents
Door mirror with a small dead angle Download PDFInfo
- Publication number
- CA2189184C CA2189184C CA002189184A CA2189184A CA2189184C CA 2189184 C CA2189184 C CA 2189184C CA 002189184 A CA002189184 A CA 002189184A CA 2189184 A CA2189184 A CA 2189184A CA 2189184 C CA2189184 C CA 2189184C
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- CA
- Canada
- Prior art keywords
- mirror
- driver
- door
- axis
- dead angle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R1/00—Optical viewing arrangements; Real-time viewing arrangements for drivers or passengers using optical image capturing systems, e.g. cameras or video systems specially adapted for use in or on vehicles
- B60R1/02—Rear-view mirror arrangements
- B60R1/06—Rear-view mirror arrangements mounted on vehicle exterior
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R1/00—Optical viewing arrangements; Real-time viewing arrangements for drivers or passengers using optical image capturing systems, e.g. cameras or video systems specially adapted for use in or on vehicles
- B60R1/02—Rear-view mirror arrangements
- B60R1/06—Rear-view mirror arrangements mounted on vehicle exterior
- B60R1/062—Rear-view mirror arrangements mounted on vehicle exterior with remote control for adjusting position
- B60R1/07—Rear-view mirror arrangements mounted on vehicle exterior with remote control for adjusting position by electrically powered actuators
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R1/00—Optical viewing arrangements; Real-time viewing arrangements for drivers or passengers using optical image capturing systems, e.g. cameras or video systems specially adapted for use in or on vehicles
- B60R1/02—Rear-view mirror arrangements
- B60R1/08—Rear-view mirror arrangements involving special optical features, e.g. avoiding blind spots, e.g. convex mirrors; Side-by-side associations of rear-view and other mirrors
Abstract
A door mirror with a small dead angle which enables the driver to easily see the areas where the right and left front and rear wheels are touching the ground that could not been seen so far with the conventional door mirrors due to dead angles, and to easily see the horizontal forward direction (if there are oncoming cars) on the side of the assistant driver's seat at the time of passing another car ahead by manipulating buttons on the driver's seat and, then, automatically returns to its initial state. The door mirror with a small dead angle comprises a support arm which includes a straight-moving screw, a slide plate that slides in the lengthwise direction thereof, and a mirror case pivotted on the slide plate to rotate. The door mirror may be further equipped with movable sources of light, may be constructed so as to be folded and may contain a fine adjustment mechanism in the mirror case. The door mirror is further equipped with a control/electrically moving mechanism by which the mirror case is automatically moved up to the coordinates that have been set in advance in a CPU enabling the driver to see the otherwise dead-angled areas, and the mirror case is returned back either manually or automatically.
Description
TITLE OF THE INVENTION
DOOR MIRROR WITH A SMALL DEAD ANGLE
BACKGROUMD OF THE INVENTION
~ Field of the Invention The present invention relates to a door mirror with a small dead angle. More specifically, the invention relates to a door mirror with a small dead angle which makes it possible to easily see the areas where the right and left front and rear wheels are touching the ground that could not been seen so far with the conventional door mirrors, and to easily see the horizontal forward direction on the side of the assistant driver's seat at the time of passing another car ahead by manipulating buttons at the driver's seat.
Description of the Prior Art A variety of contrivances have heretofore been proposed to decrease dead angles of a door mirror from the standpoint of safety.
Japanese Unexamined Patent Publication No. 116568/1993 discloses a device for chan~ing the visual field of a rearview mirror by turning at least one of either the right door mirror or the left door mirror by a required angle in a direction in which the dead angle will be eliminated based u?on a control signal output from a control means in response to at least either an on-signal or an off-signal from a turn signal lamp switch of a car ~or in response to an on-signal from a reverse gear detection switch).
According to this proposal, the mirror automatically returns back to the original position after the use. However, the door mirror is not allowed to swivel which is not capable of coping with a change in the position of the eyes when the car is driven by a different driver. Besides, when traveling forward, the movement of the mirror is triggered by the on-signal of the turn signal la~p switch; i.e., the areas of dead angles come into a visual field after the turn siqnal is output. When driving into a running lane from a ramp on an express way or when changing the lane in an ordinary manner, therefore, the turn signal is flashed first without seeing the rearview inviting a danger in that the car may be struck from behind by a succeeding car. Besides, it could happened that the distances ~ to the succeeding cars were incorrectly recognized since the visual field obtained in this state was different from the visual field obtained at an ordinary position.
Japanese Unexamined Patent Publication No. 191349/1994 proposes a rearview mirror that eliminates dead angles, according to which when it is attempted to enter into, or come out from, a garage or a parking area, the visual field near the rear wheels is maintained by moving mirrors that are remotely controlled by electricity, hydraulic pressure or pneumatic pressure. According to this proposaL, however, the moving mirrors move by only a small amount. Moreover, in the case of a car with a right-side steering wheel, it is impossible to watch the front left wheel from the driver's seat. Besides, fine adiustment is not accomplished, either, to comply with the position of the driver's eyes.
In Japan, the cars keep to the left and have a steering wheel on the right side of the car. However, though not all of them, many imported cars manufactured in foreign countries still have a steering wheel on the left side. When used in Japan, the cars wLth a left-sided steering wheel have a demerit in that difficulty is involved in passing another car ahead 2articularly in a facing traffic lane. If the right-side mirror could be automatically controlled to a preset position where it faces forwards in a horizontal direction and if the horizontal forward view could be seen, then, it is allowed to easily confirm the presence of the oncoming cars without risking to move Lnto ~he right lane to an excess degree. It is then made possible for a driver of a car with the left-sided steering wheel to safely pass the car ahead. With the conventional simply constructed remotely-controLled door mirror, however, a lot of time was needed for adjusting the position, and the door mirror could not be quickly moved to an angle for seeing the horizontal forward view in a "one-touch" operation and could not 21~918~
be quickly returned back to the initial position, either. It needs not be pointed out that the same holds true even for the cars with the right-sided steering wheel when they are used in countries where the traffic rule is that keep to the right when - you drive.
In an attempt to provide a wide-view door mirror that is very useful in handling the cars in garages and parking areas, and in moving the cars back and forth on very narrow roads, the present inventors have forwarded keen study and have arrived at the present invention as a result of making such contrivances as sliding the door mirror itself along a support anm that extends in the direction of width of the car and digitally setting the directions in advance.
SUMMARY OF THE INVENTION
The obiect of the present invention is to provide a door mirror with a small dead angle, according to which the mirror surface of the door mirror on one side or on both sides is automatically moved to an angular position that is set in advance when an indoor switch is operated by a driver at any time, so that the field which is usually within dead angles comes into a visual field temporarily, and then the mirror surface automatically returns back.
Another ob~ect of the present invention is to provide a door mirror with a small dead angle which makes it easier for the drivers o~ the cars with the left-sided steering wheel (many of the imported cars are of this type) used in Japan to pass another car ahead.
A further object of the present invention is to provide a door mirror with a small dead angle which enables the position and angle o~ the mirror surface to be adjusted finely and easily depending upon a change in the positions of the eyes when the car is used by a different driver.
A still further object of the present invention is to provide a door mirror with a small dead angle whi-h is held within the amount of protrusion beyond the car body of a conventional door mirror, and which can be expanded as required -21~9184 and can be stored.
Yet further object of the present invention is to provide a door mirror with a small dead angle that is capable of covering otherwise dead-angled visual fields, offering dazzle-proof view to the driver and havin~ movable sources of light that move together with the mirror surface.
According to the present invention, there are provided:
A door mirror with a small dead angle comprising a base plate 2 that also serves as a portion for being mounted on a door, a support arm 4 pivotally attached to the base plate and being allowed to be tilted, a straight-moving screw inserted in the support arm 4, a slide plate 8 that pivotally engages with the straight-moving screw 5 and slides in the lengthwise direction of the support arm 4 along a guide 6, and a mirror ca6e 10 that is pivotally attached to the slide plate 8 in a m~nn~r to be turned (claim l);
A door mirror with a small dead angle according to claim 1, wherein the mirror case 10 and/or the support arm 4 is provided with one or more movable sources L of light that are not dazzling to the driver (claim 2);
A door mirror with a small dead angle which can be folded according to claim 1 or 2, wherein the base plate 2 comprises a base plate 2A and an auxiliary base plate 2B which is pivotalLy attached to the door intimately and in a folding manner, and the support arm 4 is pivotally attached to the auxiliary base plate 2s (claim 3);
A door mirror with a small dead an~le according to any one of claims 1 to 3, wherein the mirror case 10 is a rear~iew mirror case containing a mechanism for finely adjusting a mirror surface 3 longitudinally and transversely (claim 4); and A door mirror with a small dead angle according to any one of claims 1 to 4, wherein a CPU stores in advance the coordinates (xt ~, ~) of the mirror case 10 to reproduce mirror surface positions P1, P2, P3, --- at which visual fields Sl~ S2~ S3, --- that cannot be seen at an ordinary mirror surface 218918~
position due to dead angles, can be seen by a driver on the driver's seat, the mirror case 10 automatically mo~es up to said coordinates enabling the field to be seen when the driver depresses buttons carrying indications of desired visual fields Sl, S2, S3, ---, and provision is made of a control function which causes the mirror surface to return back to the initial position set by the driver when the driver manipulates switches, when a predetermined period of time passes, when a car reaches a predetermined forwardly travelling speed, or when an ignition key is turned off (claim 5).
BRIEF DESCRIPTION OF THE DRAWINGS
Fig. 1 is a perspective view of a left-side door mirror of a car with the right-sided steering wheel enabling the front left wheel to be seen according to an embodiment;
Fig. is 2 pe~C~eCtive view of the left-side door m.i~~^~ n an intermedi2te attitude (moving) to enable the front left wheel to be seen according to the embodiment;
Fig. 3 is a perspective view of the left-side door mirror in an intermediate attitude (moving) in which a mirror case 10 has moved in a horizontal direction only according to the embodiment;
Fig. 4 is a perspective view of the left-side door mirror in a standard state (during the ordinary driving condition) set by a driver according to the embodiment;
Fig. 5 is a sectional view illustrating part of the embodiment that corresponds to Fig l;
Fig. 6 is a sectional view illustrating part of the left-side door mirror according to the embodiment that corresponds to Fig. 2;
Fig. 7 is a sectional view illustrating part of the embodiment that corresponds to Fig. 3;
Fig. 8 is a sectional view illustrating part of the embodiment that corresponds to Fig. 4;
Fig. 9 is a perspective view of a mirror controller;
Fig. 10 is a wiring diagram of a mirror control system;
2l89184 Fig. 11 is a block diagram of the mirror control system; and Fig. 12 is a perspective view illustrating a state where the front left wheel 20 is seen by an eye E of a driver and the arrow indicates the forward travelling direction of the car.
DESCRIPTION OF THE PREFERRED EM~ODIMENT
The present invention will now be described in detail by way of an embodiment.
Referring to Figs. 1 to 8, reference numeral 1 denotes a door mirror with a small dead angle according to an embodiment of the present invention, 2 denotes a base plate, 3 denotes a mirror surface, 4 denotes a support arm, 5 denotes a straight-moving screw, 6 denotes a guide, 8 denotes a slide plate, 10 denotes a mirror case, and symbol L denotes movable sources of light. In the following description, reference numerals may take subscripts like lL, 3L to represent those related to the door mirror of the left side, and lR, 3R to represent those related to the door mirror of the right side.
The door mirror 1 according to this embodiment is basically constituted by a plastic or metallic hollow base plate 2 secured by bolts or the like to a front end portion of a front door of a car, a support arm 4 which extends nearly in the direction of width of the car body from the base plate 2 and is pivotally attached to rotate nearly in the forwardly and reversely rotating directions of the wheel, and a mirror case 10 which is pivotally attached to nearly the central upper portion of the support arm 4 to rotate nearly in the directions in which the front wheels are directed and is equipped with nighttime illumination lamps L, L.
The mirror case 10 is equipped with a widely known device for finely adjusting the angle of the mirror surface.
A pair of movable sources of light (nighttime illumination lamps) L, L are mounted on the upper portions of the mirror case in a nonparallel manner to be widened in a direction opposite to the mirror surface. Either one of these nighttime illumination lamps L, L is turned on, that does not directly project light to the eyes of the driver when small lamps (parking lamps) or head lamps are turned on and, besides, when another special switch is turned on. They are not turned on at the time of confirming the oncoming cars (when the mirror case is directed to a forward horizontal direction) when the driver is attempting to pass another car ahead. Therefore, the drivers of the oncoming cars are not dazzled.
Fig. 10 is a wiring diagram of a mirror control system which is roughly constituted by a mirror control unit 40, drive units 50, 51 inside the right and left mirrors, and a mirror controller 30.
The mirror control unit 40 is constituted by a CPU
(microprocessor), motor drive circuits 101, 102, 103, 104, 105, 107, 108, 109, 110, and a lamp turn-on circuit 111. The CPU
sends drive signals related to turning the switches on and off to the motor drive circuits 101 to 110, and stores the rotational angles of the motors. Upon receiving signals from the CPU, the motor drive circuits 101 to 110 feeds drive voltages to the motors Ml to M1o of the drive units 50 and 51 in the right and left mirrors. Upon receiving a turn-on signal from the CPU and being served with the electric power through a light switch SWHL, the lamp turn-on circuit 111 supplies a turn-on voltage to the nighttime illumination lamps of the drive units 50 and 51 in the right and left mirrors.
The drive unit 50 in the left mirror includes a straight-moving screw motor M6, a storing position limit switch SW6A and an expanded position limit switch S~6B for halting the straight-moving screw motor M6 at a predetermined position, an ~-axis motor M7 and a ~-axis motor M8 for turning the mirror case, a r-axis motor Mg and a ~-axis motor Mlo for finely adjusting the mirror surface, limit switches SW7, SW8, SWg and SW10 for detecting points that serve as references for controlling the ~-axis, ~-axis, ~-axis and ~-axis, and night-time illumination lamps LLF and LLR. The straight-moving screw motor M6 is a DC motor, and other motors M7, M8, Mg and Mlo drive unit 51 in the right mirror includes a straight-moving screw motor Ml, expanded position and storing position limit switches SWlA and SWl~, motors rl2, M3, M4 and M5 of the -axis, ~-axis, y-axis and ~-axis, limit switches SW2, SW3, SW4 and SW5, and nighttime illumination lamps LRF and LRR.
Fig. 9 shows the appearance of the mirror controller 30, wherein a front panel 31 includes longitudinal and trans-verse fine adjustment switches SWu, SWD, SWL and SWR, a right-and-left change-over switch SWsEL, memory operation switches SWMA, SWMB, SWMc, SWMD and SWMw, and an indicator LED (shown as rectangles on the switches SWMA, SWMB, SWMc and SWMD in Fig. 9). The longitudinal and transverse fine adjustment switches SWu and SWD are used to control the angle of ~-axis of the mirror surfaces 3L and 3R and to control the angle of the a-axis cf the support arms 4L and 4R, the longitudinal and transverse fine adjustment switches SWL and SWR are used to control the angle of the ~-axis of the mirror surfaces 3L
and 3R and to control the angle of the ~-axis of the mirror cases lOL and lOR, and the right-and-left change-over switch SWsEL transmits to the CPU which one of the drive units in the right and left mirrors be selected to be controlled. The memory operation switches are used to store in the CPU the state of the drive units in the right and left mirrors, and to reproduce from the CPU the state of the drive units of the right and left mirrors.
Fig. 11 is a block diagram illustrating a relation-ship Gf control in the mirror control system.
In Fig. 11, the symbols and the reference numbers have the following meanings:
: mirror controller, : mirror control unit, : drive unit, 51 : drive unit, 101 : straight-moving screw drive circuit, 102 : right a-axis drive circuit, 103 : right ~-axis drive circuit, 104 : right y-axis drive circuit, 105 : right &-axis drive circuit, 107 : left a-axis drive circuit, 108 : left ~-axis drive circuit, 109 : left y-axis drive circuit, 110 : left ~-axis drive circuit, 111 : lamp turn-on circuit, SWlC IG key switch, SSRV : speed sensor, RV reverse switch SWML light switch, M7 : left a-axis motor, M8 : left ~-axis motor, M6 : left straight-moving screw motor, Ml : right straight-moving screw motor, M2 : right a-axis motor, M3 : right ~-axis motor, Mg : left y-axis motor, Mlo : left ~-axis motor, LL~ : front-left lamp, RF front-right lamp, M4 : right y-axis motor, M5 : right ~-axis motor, SW7 : left a-axis limit switch, SW8 : left ~-axis limit switch, LR rear-left lamp, 2189t84 RR rear-right lamp, SW2 : right a-axis limit switch, SW3 : right ~-axis limit switch, SWg : left y-axis limit switch, SW10 : left ~-axis limit switch, SW4 : right ~-axis limit switch, SW5 : right ~-axis limit switch.
The operation of this embodiment will now be described with reference to Fig. 10 0 [1] Operation of the mirror in an ordinar~ driving condition.
When the up-and-down direction adjustment switches SWu and SWD and the right-and-left direction adjustment switches SWR and SWL of the mirror controller 30 are depressed while the IG key switch SWIG is being closed, the CPU causes, through the 2189~84 dri~e circuit~ 10~, 109, lû5 and 110, the r-axis motor M4 or ~9 and tAe ~-axis motor Ms or M1o to be rotated in the directions in which the adjuslment switchës are depressed in the mirror of ~ eLther side selected b~ the right-and-lef~ change-o~er switch SW~3. The CPU con~ar~s the rota~ion~l ~ngies (de~iations from the origins) of the motors of when they are no ionger dri~en into p~lse counts and s~ores the~ as re~n posi~ions se~ by the dri~er. The origins are those positions where ~he ~imit switches SW2, SW3, SW4, SW5, SW~, S~8, SWg, and Sw10 are closed.
[2; Se~ing the mirror position again.
(lj Wnen ~he IG key swi~ch SWIG i~ closed fro~ ~he open s~a~e, the C~U dri~es, ~h~o~gh ~he s~raigh~-mo~ing ~crew dri~e circuit iûl, th~ righ~ mirror st~aight-mo~lng screw motor ~6 toward ~he rei~rning direc~ion for a prede~ermined period of time (e~g~ fi~e seconds). The siide piate~ BL ~nd 8R (see ~ig.
8j mo~e accompanying the t~rn o~ the straight-mo~ing screw and come into a halt at a return positio~ where the ~et~rn position iimii switches SW1A and S~ are opened. ~ere, nowe~er, when tne switchë~ SW1A and Sw~ ha~e been opene~ a~ a moment when the IG
ke~ switch S~IG is closed, the siide piates 8L and 82 do not move, as a matter of course.
~2j AS the lG key switch SWIG is c~osed, the CPU causes, through the dri~e circuit lG7, the step motor M7 that dri~es the a-axis of the left mirror to rotate in a direction in which a protrusion T7 (see Fig. 8) for detecting the position approàchës the li~it switch SW7. Upon ~etecting the clos~re of the s~itch W7, the CPU causes, through the dri~e circuit 107, the motor M7 to rotàte up to a rotational àngle that has been stored as a return position in the form of a pul~e count, ~o that the direction of the a-axis of the left mirror returns back to the return position set by the driver. Likewise, the ~-axis (M8, 108, T&, SWa), r-axiS ~M3, 10~, Tg, sw9) ard ~-axis (Mlo, 110, Tlor SWl0) of the left mirror and the a-axis (M2, 102, T2, SW2), ~-axis (M3, 103, T3, SW3), r-axis (M4, 104, T4, SW4) and ~-axis (M5, 105, Ts~ SW5) of the right mirror return to the initial positions set by the driver.
[3] Operation of the mirror in a state of expanded visual field.
(1) The switches SWu, SWD~ SWR~ and SWL Of the mirror controller 30 may be depressed in excess of the rotational ranges (ranges for finely adjusting the mirror surface in the mirror case) of the r-axis 24 and the ~-axis 25 (see Fig. 7) that have been set in the CPU in advance as pulse counts in a state where the right-and-left change-over switch SW~3 has been closed toward the side of the left mirror. Then, the CPU
causes, through the straight-moving screw drive circuit 101, the straight-moving screw motor M5 to be driven toward the expanding direction for a predetermined period of time ~e.g., five seconds) and further causes, through the drive circuits 109 and 110, the r-axis motor Mg and the ~-axis motor Mlo to be rotated up to the center of the range of rotation. ~xpa~ion stands for moving the mirror case up to the extreme outer end of the support arm 4 (see Fig. 8) in order to establish the state without dead angle. The straight-moving screw motor M6 comes into a halt as the circuit is opened by the operation of the ~p~nsion position limit switch SW~ (transfer to the state of an ~xr~n~e~ visual field).
Thereafter, as the up-and-down direction adjustment switches SWu, SWD and the right-and-left direction adjustment switches SWR~ SWL of the mirror controller 30 are depressed, the CPU causes, through the drive circuits 109 and 110, the corresponding r-axiS motor Mg and the ~-axis motor Mlo to rotate in the directions in which the buttons are~ depressed.
Here, when the buttons are operated in excess of the above-mentioned range of rotation, thç CPU ~uses, through the drive circuits 107 and 108, the a-axi~ motor M7 and the ~-axis motor M8 in the mirror case to be rotated in the directions in which the adjustment switches are depressed for a period of time in which they are kept depressed. It is thus made possible to see any objects that are desired to be seen (e.g., area where the front left wheel is touching the ground) from the driver's seat.
In this case, the r -axis motor Mg and the ~-axis motor Mlo are rotated through the drive circuits 109 and 110 up to the center of the range of rotation, so that the mirror surface can be easily operated next time. The CPU further sends to the turn-on circuit 111 a lamp turn-on signal to illuminate the area to where the mirror surface is faced in comparison with the angle of gaze of the driver that has been set in the CPU as a pulse count. When the light switch SW~ is closed (dusing the night), the electric power is supplied to the circuit 111 and, hence, either the nighttime illumination lamp L~ or L~ of the corresponding direction is turned on. In the foregoing was described the operation of the door mirror of the left side.
Next, when the switch SWæ3 is closed to the side of the right mirror, the CPU executes the same operations as those for the above-mentioned left mirror concerning the straight-moving screw motor Ml, r-axiS motor M4, ~-axis motor Mst ~-axis motor M2, ~-axis motor M3, drive circuits 101, 104, 105, 102, 103, expansion position limit switch SW~, nighttime illumination lamps L~, L~, and turn-on circuit 111 in response to the operations of the switches S~u, SWD, SWR, and SWL of the mirror controller 30.
DOOR MIRROR WITH A SMALL DEAD ANGLE
BACKGROUMD OF THE INVENTION
~ Field of the Invention The present invention relates to a door mirror with a small dead angle. More specifically, the invention relates to a door mirror with a small dead angle which makes it possible to easily see the areas where the right and left front and rear wheels are touching the ground that could not been seen so far with the conventional door mirrors, and to easily see the horizontal forward direction on the side of the assistant driver's seat at the time of passing another car ahead by manipulating buttons at the driver's seat.
Description of the Prior Art A variety of contrivances have heretofore been proposed to decrease dead angles of a door mirror from the standpoint of safety.
Japanese Unexamined Patent Publication No. 116568/1993 discloses a device for chan~ing the visual field of a rearview mirror by turning at least one of either the right door mirror or the left door mirror by a required angle in a direction in which the dead angle will be eliminated based u?on a control signal output from a control means in response to at least either an on-signal or an off-signal from a turn signal lamp switch of a car ~or in response to an on-signal from a reverse gear detection switch).
According to this proposal, the mirror automatically returns back to the original position after the use. However, the door mirror is not allowed to swivel which is not capable of coping with a change in the position of the eyes when the car is driven by a different driver. Besides, when traveling forward, the movement of the mirror is triggered by the on-signal of the turn signal la~p switch; i.e., the areas of dead angles come into a visual field after the turn siqnal is output. When driving into a running lane from a ramp on an express way or when changing the lane in an ordinary manner, therefore, the turn signal is flashed first without seeing the rearview inviting a danger in that the car may be struck from behind by a succeeding car. Besides, it could happened that the distances ~ to the succeeding cars were incorrectly recognized since the visual field obtained in this state was different from the visual field obtained at an ordinary position.
Japanese Unexamined Patent Publication No. 191349/1994 proposes a rearview mirror that eliminates dead angles, according to which when it is attempted to enter into, or come out from, a garage or a parking area, the visual field near the rear wheels is maintained by moving mirrors that are remotely controlled by electricity, hydraulic pressure or pneumatic pressure. According to this proposaL, however, the moving mirrors move by only a small amount. Moreover, in the case of a car with a right-side steering wheel, it is impossible to watch the front left wheel from the driver's seat. Besides, fine adiustment is not accomplished, either, to comply with the position of the driver's eyes.
In Japan, the cars keep to the left and have a steering wheel on the right side of the car. However, though not all of them, many imported cars manufactured in foreign countries still have a steering wheel on the left side. When used in Japan, the cars wLth a left-sided steering wheel have a demerit in that difficulty is involved in passing another car ahead 2articularly in a facing traffic lane. If the right-side mirror could be automatically controlled to a preset position where it faces forwards in a horizontal direction and if the horizontal forward view could be seen, then, it is allowed to easily confirm the presence of the oncoming cars without risking to move Lnto ~he right lane to an excess degree. It is then made possible for a driver of a car with the left-sided steering wheel to safely pass the car ahead. With the conventional simply constructed remotely-controLled door mirror, however, a lot of time was needed for adjusting the position, and the door mirror could not be quickly moved to an angle for seeing the horizontal forward view in a "one-touch" operation and could not 21~918~
be quickly returned back to the initial position, either. It needs not be pointed out that the same holds true even for the cars with the right-sided steering wheel when they are used in countries where the traffic rule is that keep to the right when - you drive.
In an attempt to provide a wide-view door mirror that is very useful in handling the cars in garages and parking areas, and in moving the cars back and forth on very narrow roads, the present inventors have forwarded keen study and have arrived at the present invention as a result of making such contrivances as sliding the door mirror itself along a support anm that extends in the direction of width of the car and digitally setting the directions in advance.
SUMMARY OF THE INVENTION
The obiect of the present invention is to provide a door mirror with a small dead angle, according to which the mirror surface of the door mirror on one side or on both sides is automatically moved to an angular position that is set in advance when an indoor switch is operated by a driver at any time, so that the field which is usually within dead angles comes into a visual field temporarily, and then the mirror surface automatically returns back.
Another ob~ect of the present invention is to provide a door mirror with a small dead angle which makes it easier for the drivers o~ the cars with the left-sided steering wheel (many of the imported cars are of this type) used in Japan to pass another car ahead.
A further object of the present invention is to provide a door mirror with a small dead angle which enables the position and angle o~ the mirror surface to be adjusted finely and easily depending upon a change in the positions of the eyes when the car is used by a different driver.
A still further object of the present invention is to provide a door mirror with a small dead angle whi-h is held within the amount of protrusion beyond the car body of a conventional door mirror, and which can be expanded as required -21~9184 and can be stored.
Yet further object of the present invention is to provide a door mirror with a small dead angle that is capable of covering otherwise dead-angled visual fields, offering dazzle-proof view to the driver and havin~ movable sources of light that move together with the mirror surface.
According to the present invention, there are provided:
A door mirror with a small dead angle comprising a base plate 2 that also serves as a portion for being mounted on a door, a support arm 4 pivotally attached to the base plate and being allowed to be tilted, a straight-moving screw inserted in the support arm 4, a slide plate 8 that pivotally engages with the straight-moving screw 5 and slides in the lengthwise direction of the support arm 4 along a guide 6, and a mirror ca6e 10 that is pivotally attached to the slide plate 8 in a m~nn~r to be turned (claim l);
A door mirror with a small dead angle according to claim 1, wherein the mirror case 10 and/or the support arm 4 is provided with one or more movable sources L of light that are not dazzling to the driver (claim 2);
A door mirror with a small dead angle which can be folded according to claim 1 or 2, wherein the base plate 2 comprises a base plate 2A and an auxiliary base plate 2B which is pivotalLy attached to the door intimately and in a folding manner, and the support arm 4 is pivotally attached to the auxiliary base plate 2s (claim 3);
A door mirror with a small dead an~le according to any one of claims 1 to 3, wherein the mirror case 10 is a rear~iew mirror case containing a mechanism for finely adjusting a mirror surface 3 longitudinally and transversely (claim 4); and A door mirror with a small dead angle according to any one of claims 1 to 4, wherein a CPU stores in advance the coordinates (xt ~, ~) of the mirror case 10 to reproduce mirror surface positions P1, P2, P3, --- at which visual fields Sl~ S2~ S3, --- that cannot be seen at an ordinary mirror surface 218918~
position due to dead angles, can be seen by a driver on the driver's seat, the mirror case 10 automatically mo~es up to said coordinates enabling the field to be seen when the driver depresses buttons carrying indications of desired visual fields Sl, S2, S3, ---, and provision is made of a control function which causes the mirror surface to return back to the initial position set by the driver when the driver manipulates switches, when a predetermined period of time passes, when a car reaches a predetermined forwardly travelling speed, or when an ignition key is turned off (claim 5).
BRIEF DESCRIPTION OF THE DRAWINGS
Fig. 1 is a perspective view of a left-side door mirror of a car with the right-sided steering wheel enabling the front left wheel to be seen according to an embodiment;
Fig. is 2 pe~C~eCtive view of the left-side door m.i~~^~ n an intermedi2te attitude (moving) to enable the front left wheel to be seen according to the embodiment;
Fig. 3 is a perspective view of the left-side door mirror in an intermediate attitude (moving) in which a mirror case 10 has moved in a horizontal direction only according to the embodiment;
Fig. 4 is a perspective view of the left-side door mirror in a standard state (during the ordinary driving condition) set by a driver according to the embodiment;
Fig. 5 is a sectional view illustrating part of the embodiment that corresponds to Fig l;
Fig. 6 is a sectional view illustrating part of the left-side door mirror according to the embodiment that corresponds to Fig. 2;
Fig. 7 is a sectional view illustrating part of the embodiment that corresponds to Fig. 3;
Fig. 8 is a sectional view illustrating part of the embodiment that corresponds to Fig. 4;
Fig. 9 is a perspective view of a mirror controller;
Fig. 10 is a wiring diagram of a mirror control system;
2l89184 Fig. 11 is a block diagram of the mirror control system; and Fig. 12 is a perspective view illustrating a state where the front left wheel 20 is seen by an eye E of a driver and the arrow indicates the forward travelling direction of the car.
DESCRIPTION OF THE PREFERRED EM~ODIMENT
The present invention will now be described in detail by way of an embodiment.
Referring to Figs. 1 to 8, reference numeral 1 denotes a door mirror with a small dead angle according to an embodiment of the present invention, 2 denotes a base plate, 3 denotes a mirror surface, 4 denotes a support arm, 5 denotes a straight-moving screw, 6 denotes a guide, 8 denotes a slide plate, 10 denotes a mirror case, and symbol L denotes movable sources of light. In the following description, reference numerals may take subscripts like lL, 3L to represent those related to the door mirror of the left side, and lR, 3R to represent those related to the door mirror of the right side.
The door mirror 1 according to this embodiment is basically constituted by a plastic or metallic hollow base plate 2 secured by bolts or the like to a front end portion of a front door of a car, a support arm 4 which extends nearly in the direction of width of the car body from the base plate 2 and is pivotally attached to rotate nearly in the forwardly and reversely rotating directions of the wheel, and a mirror case 10 which is pivotally attached to nearly the central upper portion of the support arm 4 to rotate nearly in the directions in which the front wheels are directed and is equipped with nighttime illumination lamps L, L.
The mirror case 10 is equipped with a widely known device for finely adjusting the angle of the mirror surface.
A pair of movable sources of light (nighttime illumination lamps) L, L are mounted on the upper portions of the mirror case in a nonparallel manner to be widened in a direction opposite to the mirror surface. Either one of these nighttime illumination lamps L, L is turned on, that does not directly project light to the eyes of the driver when small lamps (parking lamps) or head lamps are turned on and, besides, when another special switch is turned on. They are not turned on at the time of confirming the oncoming cars (when the mirror case is directed to a forward horizontal direction) when the driver is attempting to pass another car ahead. Therefore, the drivers of the oncoming cars are not dazzled.
Fig. 10 is a wiring diagram of a mirror control system which is roughly constituted by a mirror control unit 40, drive units 50, 51 inside the right and left mirrors, and a mirror controller 30.
The mirror control unit 40 is constituted by a CPU
(microprocessor), motor drive circuits 101, 102, 103, 104, 105, 107, 108, 109, 110, and a lamp turn-on circuit 111. The CPU
sends drive signals related to turning the switches on and off to the motor drive circuits 101 to 110, and stores the rotational angles of the motors. Upon receiving signals from the CPU, the motor drive circuits 101 to 110 feeds drive voltages to the motors Ml to M1o of the drive units 50 and 51 in the right and left mirrors. Upon receiving a turn-on signal from the CPU and being served with the electric power through a light switch SWHL, the lamp turn-on circuit 111 supplies a turn-on voltage to the nighttime illumination lamps of the drive units 50 and 51 in the right and left mirrors.
The drive unit 50 in the left mirror includes a straight-moving screw motor M6, a storing position limit switch SW6A and an expanded position limit switch S~6B for halting the straight-moving screw motor M6 at a predetermined position, an ~-axis motor M7 and a ~-axis motor M8 for turning the mirror case, a r-axis motor Mg and a ~-axis motor Mlo for finely adjusting the mirror surface, limit switches SW7, SW8, SWg and SW10 for detecting points that serve as references for controlling the ~-axis, ~-axis, ~-axis and ~-axis, and night-time illumination lamps LLF and LLR. The straight-moving screw motor M6 is a DC motor, and other motors M7, M8, Mg and Mlo drive unit 51 in the right mirror includes a straight-moving screw motor Ml, expanded position and storing position limit switches SWlA and SWl~, motors rl2, M3, M4 and M5 of the -axis, ~-axis, y-axis and ~-axis, limit switches SW2, SW3, SW4 and SW5, and nighttime illumination lamps LRF and LRR.
Fig. 9 shows the appearance of the mirror controller 30, wherein a front panel 31 includes longitudinal and trans-verse fine adjustment switches SWu, SWD, SWL and SWR, a right-and-left change-over switch SWsEL, memory operation switches SWMA, SWMB, SWMc, SWMD and SWMw, and an indicator LED (shown as rectangles on the switches SWMA, SWMB, SWMc and SWMD in Fig. 9). The longitudinal and transverse fine adjustment switches SWu and SWD are used to control the angle of ~-axis of the mirror surfaces 3L and 3R and to control the angle of the a-axis cf the support arms 4L and 4R, the longitudinal and transverse fine adjustment switches SWL and SWR are used to control the angle of the ~-axis of the mirror surfaces 3L
and 3R and to control the angle of the ~-axis of the mirror cases lOL and lOR, and the right-and-left change-over switch SWsEL transmits to the CPU which one of the drive units in the right and left mirrors be selected to be controlled. The memory operation switches are used to store in the CPU the state of the drive units in the right and left mirrors, and to reproduce from the CPU the state of the drive units of the right and left mirrors.
Fig. 11 is a block diagram illustrating a relation-ship Gf control in the mirror control system.
In Fig. 11, the symbols and the reference numbers have the following meanings:
: mirror controller, : mirror control unit, : drive unit, 51 : drive unit, 101 : straight-moving screw drive circuit, 102 : right a-axis drive circuit, 103 : right ~-axis drive circuit, 104 : right y-axis drive circuit, 105 : right &-axis drive circuit, 107 : left a-axis drive circuit, 108 : left ~-axis drive circuit, 109 : left y-axis drive circuit, 110 : left ~-axis drive circuit, 111 : lamp turn-on circuit, SWlC IG key switch, SSRV : speed sensor, RV reverse switch SWML light switch, M7 : left a-axis motor, M8 : left ~-axis motor, M6 : left straight-moving screw motor, Ml : right straight-moving screw motor, M2 : right a-axis motor, M3 : right ~-axis motor, Mg : left y-axis motor, Mlo : left ~-axis motor, LL~ : front-left lamp, RF front-right lamp, M4 : right y-axis motor, M5 : right ~-axis motor, SW7 : left a-axis limit switch, SW8 : left ~-axis limit switch, LR rear-left lamp, 2189t84 RR rear-right lamp, SW2 : right a-axis limit switch, SW3 : right ~-axis limit switch, SWg : left y-axis limit switch, SW10 : left ~-axis limit switch, SW4 : right ~-axis limit switch, SW5 : right ~-axis limit switch.
The operation of this embodiment will now be described with reference to Fig. 10 0 [1] Operation of the mirror in an ordinar~ driving condition.
When the up-and-down direction adjustment switches SWu and SWD and the right-and-left direction adjustment switches SWR and SWL of the mirror controller 30 are depressed while the IG key switch SWIG is being closed, the CPU causes, through the 2189~84 dri~e circuit~ 10~, 109, lû5 and 110, the r-axis motor M4 or ~9 and tAe ~-axis motor Ms or M1o to be rotated in the directions in which the adjuslment switchës are depressed in the mirror of ~ eLther side selected b~ the right-and-lef~ change-o~er switch SW~3. The CPU con~ar~s the rota~ion~l ~ngies (de~iations from the origins) of the motors of when they are no ionger dri~en into p~lse counts and s~ores the~ as re~n posi~ions se~ by the dri~er. The origins are those positions where ~he ~imit switches SW2, SW3, SW4, SW5, SW~, S~8, SWg, and Sw10 are closed.
[2; Se~ing the mirror position again.
(lj Wnen ~he IG key swi~ch SWIG i~ closed fro~ ~he open s~a~e, the C~U dri~es, ~h~o~gh ~he s~raigh~-mo~ing ~crew dri~e circuit iûl, th~ righ~ mirror st~aight-mo~lng screw motor ~6 toward ~he rei~rning direc~ion for a prede~ermined period of time (e~g~ fi~e seconds). The siide piate~ BL ~nd 8R (see ~ig.
8j mo~e accompanying the t~rn o~ the straight-mo~ing screw and come into a halt at a return positio~ where the ~et~rn position iimii switches SW1A and S~ are opened. ~ere, nowe~er, when tne switchë~ SW1A and Sw~ ha~e been opene~ a~ a moment when the IG
ke~ switch S~IG is closed, the siide piates 8L and 82 do not move, as a matter of course.
~2j AS the lG key switch SWIG is c~osed, the CPU causes, through the dri~e circuit lG7, the step motor M7 that dri~es the a-axis of the left mirror to rotate in a direction in which a protrusion T7 (see Fig. 8) for detecting the position approàchës the li~it switch SW7. Upon ~etecting the clos~re of the s~itch W7, the CPU causes, through the dri~e circuit 107, the motor M7 to rotàte up to a rotational àngle that has been stored as a return position in the form of a pul~e count, ~o that the direction of the a-axis of the left mirror returns back to the return position set by the driver. Likewise, the ~-axis (M8, 108, T&, SWa), r-axiS ~M3, 10~, Tg, sw9) ard ~-axis (Mlo, 110, Tlor SWl0) of the left mirror and the a-axis (M2, 102, T2, SW2), ~-axis (M3, 103, T3, SW3), r-axis (M4, 104, T4, SW4) and ~-axis (M5, 105, Ts~ SW5) of the right mirror return to the initial positions set by the driver.
[3] Operation of the mirror in a state of expanded visual field.
(1) The switches SWu, SWD~ SWR~ and SWL Of the mirror controller 30 may be depressed in excess of the rotational ranges (ranges for finely adjusting the mirror surface in the mirror case) of the r-axis 24 and the ~-axis 25 (see Fig. 7) that have been set in the CPU in advance as pulse counts in a state where the right-and-left change-over switch SW~3 has been closed toward the side of the left mirror. Then, the CPU
causes, through the straight-moving screw drive circuit 101, the straight-moving screw motor M5 to be driven toward the expanding direction for a predetermined period of time ~e.g., five seconds) and further causes, through the drive circuits 109 and 110, the r-axis motor Mg and the ~-axis motor Mlo to be rotated up to the center of the range of rotation. ~xpa~ion stands for moving the mirror case up to the extreme outer end of the support arm 4 (see Fig. 8) in order to establish the state without dead angle. The straight-moving screw motor M6 comes into a halt as the circuit is opened by the operation of the ~p~nsion position limit switch SW~ (transfer to the state of an ~xr~n~e~ visual field).
Thereafter, as the up-and-down direction adjustment switches SWu, SWD and the right-and-left direction adjustment switches SWR~ SWL of the mirror controller 30 are depressed, the CPU causes, through the drive circuits 109 and 110, the corresponding r-axiS motor Mg and the ~-axis motor Mlo to rotate in the directions in which the buttons are~ depressed.
Here, when the buttons are operated in excess of the above-mentioned range of rotation, thç CPU ~uses, through the drive circuits 107 and 108, the a-axi~ motor M7 and the ~-axis motor M8 in the mirror case to be rotated in the directions in which the adjustment switches are depressed for a period of time in which they are kept depressed. It is thus made possible to see any objects that are desired to be seen (e.g., area where the front left wheel is touching the ground) from the driver's seat.
In this case, the r -axis motor Mg and the ~-axis motor Mlo are rotated through the drive circuits 109 and 110 up to the center of the range of rotation, so that the mirror surface can be easily operated next time. The CPU further sends to the turn-on circuit 111 a lamp turn-on signal to illuminate the area to where the mirror surface is faced in comparison with the angle of gaze of the driver that has been set in the CPU as a pulse count. When the light switch SW~ is closed (dusing the night), the electric power is supplied to the circuit 111 and, hence, either the nighttime illumination lamp L~ or L~ of the corresponding direction is turned on. In the foregoing was described the operation of the door mirror of the left side.
Next, when the switch SWæ3 is closed to the side of the right mirror, the CPU executes the same operations as those for the above-mentioned left mirror concerning the straight-moving screw motor Ml, r-axiS motor M4, ~-axis motor Mst ~-axis motor M2, ~-axis motor M3, drive circuits 101, 104, 105, 102, 103, expansion position limit switch SW~, nighttime illumination lamps L~, L~, and turn-on circuit 111 in response to the operations of the switches S~u, SWD, SWR, and SWL of the mirror controller 30.
(2) When either the right or left mirror is in a state of expanded visual field, the CPU causes, through the right and left straight-moving screw drive circuits 101, the straight-moving screw motors Ml and M6 to be driven in the returning direction for a predetermined period of time (e.g., five seconds) and causes, through the drive circuits 102, 107, 103, 108, 104, 109, 105, 110, the right and left a-axis, ~-axis, r-axis and ~-axis motors M2, M7, M3, M6, M4, Mg, M5 and Mlo to be rotated up to the rotational angles (pulse counts) that have been stored as return positions set by the driver (return to the ordinary driving condition) (1) when there is no signal from the speed sensor SSRV for a preset period of time (e.g., one minute), the reverse gear switch SW~ of the vehicle has not been set to the reverse state, and none of the direction adjustment switches SWu, SWD~ SW~, and SWL Of the mirror controller 30 are depressed, (2) when the vehicle speed has exceeded a preset forward speed (the reverse gear switch SW~ of the vehicle is not in the reverse state, and the speed sensor SSRV is detecting a speed of, for example, 10 Km/h), or (3) when the IG key switch SW~G is opened from the closed state. Under the ordinary driving condition, therefore, the state of expanded visual field of the mirror is not established to maintain safe driving.
~4] Setting and calling the memory.
(1) With the IG key switch SWIG being turned on, when any one of the memory switches SW~, SW~, SW~, and SW~ is depressed within a predetermined period time (e.g., within 10 seconds) after the memory switch SW~ has been depressed, the CPU stores the expanded/returned state of the right and left mirror slide plates 8R, 8L at that moment and rotational angles (pulse counts) of the right and left a-axis, ~-axis, r -axis and ~-axis motors M2, M7, M3, M6, M4, Mg, Ms and Mlo together with the memory switches (memory operation).
(2) With the IG key switch SWIG being turned on, when any one of the memory switches SW~, SW~, SW~, and SW~ is depressed, the CPU stores the expanded/returned state of the right and left mirror slide plates 8R, 8L at that moment and rotational angles (pulse counts) of the right and left ~-axis, ~-axis, r -axis and ~i--axis motors M2, M7, M3, M6, M4, Mg, M5 and Mlo as return positions set by the driver, turns on the indicator LED that forms a pair with a memory switch that is depressed, causes, through the straight-m~ving screw drive 76726-~
2~8~184 circuit 101, the straight-moving screw motors M1 and M6 to be rotated in order to reproduce the expanded/returned state of the right and left mirror slide plates 8R and 8L that are stored in the memory together with the switches, and causes, through the drive circuits 102, 107, 103, 108, 104, 109, 105, 110, the motors M2, M7, M3, M8, M4, M~, M5 and M1o in order to reproduce the rotational angles (pulse counts) of the right and left a-axis, ~-axis, r-axis and ~-axis ~operation for calling memory) (3) When a memory switch forming a pair with an indicator ~ED that is turned on is depressed in a state where the memory is called, the CPU causes, through the straight-moving screw drive circuit 101, the straight-moving screw motors Ml and M6 to rotate in order to reproduce the expanded/returned state of the right and left mirror slide plates 8R and 8L that are stored as return positions set by the driver at a moment when the operation is assumed for calling the memory, and further causes, through the drive circuits 102, 107, 103, 108, 104, 109, lOS, 110, the motors ~2, ~7, M3, M8, ~4, Mg, ~5 and ~-0 in order to reproduce the rotational angles (pulse counts) of the right and left a-axis, ~-axis, r-axis and ~-axis (operation for resetting the memory). When either the right mirror or the left mirror is in a state of expanded visual field as a result of calling memory, the CPU resets the memory depending upon any one o~ the return conditions (1), (2) and (3) into the ordinary driving condition mentioned in 3-(2) above.
~4] Setting and calling the memory.
(1) With the IG key switch SWIG being turned on, when any one of the memory switches SW~, SW~, SW~, and SW~ is depressed within a predetermined period time (e.g., within 10 seconds) after the memory switch SW~ has been depressed, the CPU stores the expanded/returned state of the right and left mirror slide plates 8R, 8L at that moment and rotational angles (pulse counts) of the right and left a-axis, ~-axis, r -axis and ~-axis motors M2, M7, M3, M6, M4, Mg, Ms and Mlo together with the memory switches (memory operation).
(2) With the IG key switch SWIG being turned on, when any one of the memory switches SW~, SW~, SW~, and SW~ is depressed, the CPU stores the expanded/returned state of the right and left mirror slide plates 8R, 8L at that moment and rotational angles (pulse counts) of the right and left ~-axis, ~-axis, r -axis and ~i--axis motors M2, M7, M3, M6, M4, Mg, M5 and Mlo as return positions set by the driver, turns on the indicator LED that forms a pair with a memory switch that is depressed, causes, through the straight-m~ving screw drive 76726-~
2~8~184 circuit 101, the straight-moving screw motors M1 and M6 to be rotated in order to reproduce the expanded/returned state of the right and left mirror slide plates 8R and 8L that are stored in the memory together with the switches, and causes, through the drive circuits 102, 107, 103, 108, 104, 109, 105, 110, the motors M2, M7, M3, M8, M4, M~, M5 and M1o in order to reproduce the rotational angles (pulse counts) of the right and left a-axis, ~-axis, r-axis and ~-axis ~operation for calling memory) (3) When a memory switch forming a pair with an indicator ~ED that is turned on is depressed in a state where the memory is called, the CPU causes, through the straight-moving screw drive circuit 101, the straight-moving screw motors Ml and M6 to rotate in order to reproduce the expanded/returned state of the right and left mirror slide plates 8R and 8L that are stored as return positions set by the driver at a moment when the operation is assumed for calling the memory, and further causes, through the drive circuits 102, 107, 103, 108, 104, 109, lOS, 110, the motors ~2, ~7, M3, M8, ~4, Mg, ~5 and ~-0 in order to reproduce the rotational angles (pulse counts) of the right and left a-axis, ~-axis, r-axis and ~-axis (operation for resetting the memory). When either the right mirror or the left mirror is in a state of expanded visual field as a result of calling memory, the CPU resets the memory depending upon any one o~ the return conditions (1), (2) and (3) into the ordinary driving condition mentioned in 3-(2) above.
(4) When the memory switches S~, S~, sw~, and SW~ are in an initial state ~as when a new car is bought), the CPU is storing in ad~ance the rotational angles (pulse counts) of the ~-axis, ~-axis, r -axis and ~-axis of the right and left mirrors such that the positions that are mostly desired to be seen are reflected on the mirrors ~e.g., the memory switches SW~, SW~, SW~, and SW~ have been so adjusted and stored in the CPU that the areas where the front left wheel and front right wheeel, front left wheel and rear right wheel, rear left wheel and rear right wheel, and rear left wheel and front right 76726-l 218918~
touching the ground, can be seen on the right and left mirrors~.
According~y, the areas that are mostly desired to be seen can be easily viewed without the need to dare to set the positions.
touching the ground, can be seen on the right and left mirrors~.
According~y, the areas that are mostly desired to be seen can be easily viewed without the need to dare to set the positions.
5. Electrically powered folding.
Though not shown in Fig. 10, the mirror can be electrically folded by providing the folding mechanism of the base plate 2A with an electric motor and by providing a switch inside the room.
The embodiment of the present invention makes it possible to accomplish all of the above-mentioned objects.
That is, there is provided a door mirror with a small dead angle with which a driver manipulates indoor switches as required to automatically move the mirror surface of the door mirror of one side or both sides up to a predetermined angular position, so that the areas which are usually within dead angles are temporarily brought into view and then the mirror surface is returned back to the initial state. ~oreover, the door mirror makes it easier to pass another car ahead particularly when driving a car with the left-sided steering wheel (many imported cars are of this type) in ~apan where the traffic rule is that keep to the left when you drive. ~urthermore, the door mirror with a small dead angle of the present invention makes it possible to easily and finely adjust the position and angle of the mirror surface depending upon a change in the position of the eyes of when the car is used by a different driver. The door mirror is confined within the amount of protrusion beyond the car body of a conventional door mirror, and can be expanded and stored as required.
Besides, the door mirror of the present invention is equipped with movable sources of light that move together with the mirror surface and illuminate the areas that are so far within dead angles without causing dazzle to the driver.
Therefore, the driver is al~owed to confirm the conditions even in the darkness.
Though not shown in Fig. 10, the mirror can be electrically folded by providing the folding mechanism of the base plate 2A with an electric motor and by providing a switch inside the room.
The embodiment of the present invention makes it possible to accomplish all of the above-mentioned objects.
That is, there is provided a door mirror with a small dead angle with which a driver manipulates indoor switches as required to automatically move the mirror surface of the door mirror of one side or both sides up to a predetermined angular position, so that the areas which are usually within dead angles are temporarily brought into view and then the mirror surface is returned back to the initial state. ~oreover, the door mirror makes it easier to pass another car ahead particularly when driving a car with the left-sided steering wheel (many imported cars are of this type) in ~apan where the traffic rule is that keep to the left when you drive. ~urthermore, the door mirror with a small dead angle of the present invention makes it possible to easily and finely adjust the position and angle of the mirror surface depending upon a change in the position of the eyes of when the car is used by a different driver. The door mirror is confined within the amount of protrusion beyond the car body of a conventional door mirror, and can be expanded and stored as required.
Besides, the door mirror of the present invention is equipped with movable sources of light that move together with the mirror surface and illuminate the areas that are so far within dead angles without causing dazzle to the driver.
Therefore, the driver is al~owed to confirm the conditions even in the darkness.
Claims (5)
1. A door mirror with a small dead angle, comprising:
a base plate that also serves as a portion for being mounted on a door, a support arm pivotally attached to the base plate and being allowed to be tilted, a straight-moving screw inserted in the support arm, a slide plate that pivotally engages with the straight-moving screw and slides in the lengthwise direction of the support arm along a guide, and a mirror case that is pivotally attached to the slide plate in a manner to be turned.
a base plate that also serves as a portion for being mounted on a door, a support arm pivotally attached to the base plate and being allowed to be tilted, a straight-moving screw inserted in the support arm, a slide plate that pivotally engages with the straight-moving screw and slides in the lengthwise direction of the support arm along a guide, and a mirror case that is pivotally attached to the slide plate in a manner to be turned.
2. A door mirror with a small dead angle according to claim 1, wherein at least one of the mirror case and the support arm is provided with one or more movable sources of light that are not dazzling to the driver.
3. A door mirror with a small dead angle according to claim 1 or 2, which can be folded and wherein the base plate also comprises an auxiliary base plate which is pivotally attached to the door intimately and in a folding manner, and the support arm is pivotally attached to the auxiliary base plate.
4. A door mirror with a small dead angle according to any one of claims 1 to 3, wherein the mirror case is a rearview mirror case containing a mechanism for finely adjusting a mirror surface longitudinally and transversely.
5. A door mirror with a small dead angle according to any one of claim 1 to 4, wherein a CPU stores in advance the coordinates (X, .alpha., .beta.) of the mirror case to reproduce mirror surface positions P1, P2, P3, --- at which visual fields S1, S2, S3, --- that cannot be seen at an ordinary mirror surface position due to dead angles, can be seen by a driver on the driver's seat, the mirror case automatically moves up to the coordinates enabling the field to be seen when the driver depresses buttons carrying indications of desired visual fields S1, S2, S3, ---, and provision is made of a control function which causes the mirror surface to return back to the initial position set by the driver when the driver manipulates switches, when a predetermined period of time passes, when a car reaches a predetermined forwardly travelling speed, or when an ignition key is turned off.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP35052195A JP3204610B2 (en) | 1995-12-22 | 1995-12-22 | Small blind spot door mirror |
JPHEI7-350521 | 1995-12-22 |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2189184A1 CA2189184A1 (en) | 1997-06-23 |
CA2189184C true CA2189184C (en) | 2000-02-01 |
Family
ID=18411069
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002189184A Expired - Fee Related CA2189184C (en) | 1995-12-22 | 1996-10-30 | Door mirror with a small dead angle |
Country Status (6)
Country | Link |
---|---|
US (1) | US5886838A (en) |
EP (1) | EP0780266B1 (en) |
JP (1) | JP3204610B2 (en) |
KR (1) | KR100215317B1 (en) |
CA (1) | CA2189184C (en) |
DE (1) | DE69607731T2 (en) |
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- 1995-12-22 JP JP35052195A patent/JP3204610B2/en not_active Expired - Fee Related
-
1996
- 1996-08-19 KR KR1019960034781A patent/KR100215317B1/en not_active IP Right Cessation
- 1996-10-30 CA CA002189184A patent/CA2189184C/en not_active Expired - Fee Related
- 1996-12-19 DE DE69607731T patent/DE69607731T2/en not_active Expired - Fee Related
- 1996-12-19 EP EP96120506A patent/EP0780266B1/en not_active Expired - Lifetime
- 1996-12-20 US US08/770,440 patent/US5886838A/en not_active Expired - Fee Related
Also Published As
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---|---|
EP0780266B1 (en) | 2000-04-12 |
DE69607731D1 (en) | 2000-05-18 |
EP0780266A3 (en) | 1997-08-20 |
CA2189184A1 (en) | 1997-06-23 |
JPH09175274A (en) | 1997-07-08 |
JP3204610B2 (en) | 2001-09-04 |
KR970038354A (en) | 1997-07-24 |
KR100215317B1 (en) | 1999-08-16 |
US5886838A (en) | 1999-03-23 |
EP0780266A2 (en) | 1997-06-25 |
DE69607731T2 (en) | 2000-12-28 |
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Legal Events
Date | Code | Title | Description |
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EEER | Examination request | ||
MKLA | Lapsed |