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Publication numberUS2766346 A
Publication typeGrant
Publication dateOct 9, 1956
Filing dateApr 1, 1955
Priority dateApr 1, 1955
Publication numberUS 2766346 A, US 2766346A, US-A-2766346, US2766346 A, US2766346A
InventorsRamos Valdes Orfelio
Original AssigneeRamos Valdes Orfelio
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Tilt actuated circuit breaker
US 2766346 A
Abstract  available in
Images(4)
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Claims  available in
Description  (OCR text may contain errors)

Oct. 9, 1956 o. R. VALDES TILT ACTUATED CIRCUIT BREAKER 4 Sheets-Sheet 1 Filed April 1, 1955 IN VEN TOR. Oar: Euo \ZAMos \IALDES ATT QNEYS Oct 9, 1956 o. R. VALDES TILT ACTUATED CIRCUIT BREAKER 4 Sheets-Sheet 2 Filed April 1, 1955 IN V EN TOR. O12 F'ELIO EAMos. VALUES %%W, WW 9m ATTOEMEYS Oct. 9, 1956 V s 2,766,346

TILT ACTUATED CIRCUIT BREAKER Filed April 1, 1955 4 Shts-Sheet s Si -1 g .4

FIG. 5

IN V EN TOR. 0Q FE uo QAmos VA LDES ATTOQ H EYS United States Patent TILT ACTUATED CIRCUIT BREAKER Orfelio Ramos Valdes, Santa Clara, Cuba Application April 1, 1955, Serial No. 498,611 3 Claims. (Cl. 200-6152) This invention relates to a tilt actuated circuit breaker and has for its primary object to discontinue the flow of electrical energy from a battery through the ignition system of a motor driven vehicle when the vehicle tilts beyond a predetermined angle to the horizontal.

Another object is to eliminate the danger of fire and to discontinue the operation of the engine of the vehicle either through the impact of the vehicle against another objector the tilting of the vehicle beyond a predetermined angle to the horizontal.

The above and other objects may be attained by employing this invention which embodies among its features a pair of contact arms mounted intermediate their ends to move in intersecting arcuate paths, a contact mounted adjacent one end of said pair of contact arms to advance in a rectilinear path which intersects the arcuate paths, spring means mounted adjacent said arms and engaging the contact for retracting it relative to said contact arms, a wedge mounted adjacent the contact arms for advance therebetween into wedging engagement therewith to cause said arms to move in their arcuate paths and frictionally engage the contact and hold it projected against the effort of the spring, yielding means mounted adjacent the arms and engaging the wedge for retracting it relative to the aims, and a tilt released latch mounted adjacent the wedge for engaging it and holding it advanced against the effort of the yielding means.

Other features include triggers mounted adjacent opposite ends of the wedge and operatively connected to the latch for releasing said latch when the angle of the circuit breaker attains a predetermined value, a ball guide mounted below the contact, a hump intermediate the ends of the ball guide, a ball within the ball guide for movement toward one end thereof and over the hump when the circuit breaker tilts beyond a predetermined angle, a trigger mounted adjacent the ball guide and intersecting the path of movement of the ball as it moves over the hump, and said trigger being operatively connected to the latch for releasing it upon engagement of the trigger by the ball.

In the drawings:

Figure 1 is a fragmentary perspective view of a frame of a vehicle, showing the battery mounted thereon and this improved tilt actuated circuit breaker mounted on the frame adjacent the battery;

Figure 2 is a schematic diagram showing the manner in which the circuit breaker is connected into the electrical circuit of a conventional motor vehicle;

Figure 3 is a view similar to Figure 2, showing the circuit breaker actuated upon the tilt of the vehicle;

Figure 4 is an enlarged horizontal sectional view taken substantially on the line 4-4 of Figure 1;

Figure 5 is a vertical sectional View taken on the line 55 of Figure 4;

'Figure 6 is a vertical sectional view taken substantially on the line 66 of Figure 5;

substantially Figure 7 is an enlarged fragmentary sectional view taken substantially on the line 7-7 of Figure 5;

Figure 8 is a fragmentary enlarged sectional view taken substantially on the line 8-8 of Figure 5; and

Figure 9 is a fragmentary enlarged sectional View taken substantially on the line 9-9 of Figure 5.

Referring to the drawings in detail, this improved circuit breaker designated generally 10 comprises a sup porting panel 12 which is adapted to be bolted or otherwise fixed to the frame F of the vehicle adjacent the battery B thereof. Carried by the supporting panel and extending perpendicularly outwardly therefrom is a main panel 14 carrying adjacent its upper edge a bracket designated generally 16 which comprises spaced parallel substantially horizontally extending ears 18 which are pierced with aligning openings 20 and 22 for the reception of pivot pins 24 and 26, respectively, the purpose of which will hereinafter appear. Carried by the bed plate and projecting outwardly therefrom in spaced relation to the ears 18 are guides 28 having aligning openings 30 extending therethrough which lie on an axis which extends above and between the pivot pins 24 and 26. The guides 28 are constructed of nonconducting material.

Pivotally mounted intermediate their ends for rocking movement on the pivot pins 24 and 26, respectively are contact arms 32 and 34, the upper ends 36 and 38, respectively, of which define contact terminals which are adapted to frictionally engage the contact to be more fully hereinafter described. The extensions 36 and 38, like the arms 32 and 34, move in intersecting arcuate paths about the pivots 24 and 26, respectively, and mounted for longitudinal sliding movement in the openings 30 of the guides 28 is a contact 40 carrying an axial extension 42 which, when the contact 40 is advanced, extends between the extensions 36 and 38 into frictional contact therewith, as will be more fully hereinafter de scribed. Carried by the contact 40 and extending outwardly therefrom adjacent the end thereof remote from the extension 42 is a cross pin 44 against which a washer 46 bears, and encircling the contact 40 between the washer 46 and an adjacent supporting guide 28 is a compression coil spring 48 which, when the contact arms 32 and 34 hang free, retract the extension 42 from its position between the extensions 36 and 38 of the contact arms 32 and 34, respectively. A suitable terminal 50 is carried by the contact 40 and is connected through the medium of a conventional flexible cable 52 to one terminal of the battery B of the vehicle. It will be understood, of course, that the supporting guides 28 are constructed of a non-conducting material so that ground between the battery B and the frame P will be established only when the extension 42 projects between the extensions 36 and 38 of the contact arms 32 and 34. Carried by the contact arm 34 and extending laterally outwardly therefrom is a contact car 54 which, as illustrated in the drawings, is connected through a conventional flexible cable 56 to ground G.

Secured to the main panel 14 in any suitable manner below the guides 28 is a frame 58 carrying vertically spaced outwardly extending supporting arms 60 on which is mounted remote from the panel 14 a guide block designated generally 62 which comprises a tubular body 64 which lies in spaced parallel relation to the longitudinal axis of the contact 40 and carries adjacent its end remote from the contact arms 32 and 34 an upwardly extending tubular guide 66, the lower end of which opens through and communicates with the interior of the guide 64. The guide 66 is provided intermediate its ends with an elongated longitudinal extending slot 68, the purpose of which will hereinafter appear.

A transversely extending partition wall 70 is carried by thetubular guide 64 to define a stop for a spring to be more fully hereinafter described and formed in the partition wall 70 in axial alignment with the tubular body 64 is an opening 72. A plunger rod 74 is slidably mounted in the opening 72 and carries intermediate its ends an outwardly extending annular guide '76 which cooperates with the wall of the opening '72 in guiding the longitudinal motion of the plunger '74 within the tubular body 64. Carried by the plunger 74 and extending outwardly therefrom adjacent the end thereof remote from the contact arms 32 and 34 is a head 73, the purpose of which will hereinafter appear. Encircling the end of the plunger rod '74 remote from the head '73 is a wedge block having oppositely disposed flat faces which converge as they approach the end of the plunger rod 74 remote from the head 73 to define wedge faces 32 which are adapted to be projected between the arms 32 and 3d remote from the extensions 36 and 38 in order to rock said arms 32 and 34 about their pivots 2 and 26 into frictional contact with the extension 42 on the contact A compression coil spring 84 encircles the plunger rod '74 between the partition 7 2 and the stop '76 to exert retractive effort on the plunger rod 74 in a direction to extract the wedge block 311 from its position between the arms 32 and Mounted for vertical sliding movement in the guide is a latch member 36 carrying intermediate its ends a lateraliy extending lug 38 which extends outwardly "hrough the slot 63 to define actuating means by which he latch may be moved longitudinally in the guide as? did are engagement with the stop 76 to hold the t e advanced between the arms 32 and 34 against 6b is Z1 la'eral extension 92 having an elongated slot 94 extending therethrough which receives the operating lug 88 of the latch 36. Carried by and extending outwardly from opposite sides of the upper end 96 of the rock arm ht are spherical studs 93 and 1110 over which are fitted respectively sockets 1632 and 1M. Threadedly engaged with the socket 1152 and extending outwardly therefrom toward the panel 12 is an actuating link 1%, while a similar actuating link 1118 is connected to the socket 11M and extends outardly therefrom in a direction opposite the link 106.

A bracket arm 11% is carried by the panel 12 and pivotally mounted as at 112 on said bracket arm is a depending trig er 114, the upper end 116 of which receives the end of the link 111% remote from the socket 102, as will be readily understood upon reference to Figure 5. Mounted in the bracket 11?: carried by the panel 14 remote from the bracket 110 is a pivot pin 12th on which is mountec for swinging movement about the axis of the pivot a trigger 122 and formed in the trigger 122 adjacent its upper end is an opening 124 for the reception of the link 1%. A retractile coil spring 126 is connected one end to the trigger 114 and at its opposite end to the trigger 122 below the pivots 112 and 1120, respectively, to yieldingly urge the lower ends of the triggers 114 12;: toward one another.

As by straps 128, 131i, 132 and 134, is a ball guide designated generally 136 which comprises an undulated tubular body 133 provided intermediate its ends with humps 14-9 and 142 defining between said humps and adjacent ends of the ball guide tubular bodies 144 and 146 which slope downwardly as they approach the ends or" the tube. The downardly inclined portions 144 and 146 of the tubular body 136 are provided respectively with slots 148 and 154) which extend longitudinally to receive any suitable instrument by which a ball 152 may be moved up one or the other of the inclined portions 1M and 146 over the respective hump 140 or 142 to rest in the ball guide 136 substantially midway between opposite ends thereof. As illustrated, the triggers 114 and 122 extend respectively across the opposite ends of the ball guide 136 so that when the device is tilted in either direction to an extent sufiicient to cause the ball 152 to ride over an adjacent hump, the ball will engage a trigger to interrupt the flow of electrical energy between the contact arms 32 and 374 and the contact 4%. Suitable retractile coil springs 154 and 156 are anchored respectively to the links 1113 and 106 and to the straps 123 and 134 to exert downward pull on the links and to assist in holding the triggers 114 and 122 in the path of movement of the ball 152 when it rides over either of the humps or 142.

Carried by the panel 12 and extending outwardly therefrom is a bracket 1558 carrying a pivot 16%, the axis of which lies perpendicular to the axes of the pivots 112 and 12A and pivotally supported on the pivot 16%) is a trigger 162 which is connected through the medium of a link 16 1 to one arm 166 of a bell crank lever designated generally 168 which is mounted on the panel 14 to move about a vertical axis. The opposite arm 170 of the bell crank lever 163 is connected through the medium of a link 172 which is pivotally connected to the lock lever 91 adjacent the lower end thereof, as illustrated at 174.

Mounted on the panel 12 as by straps 176 is a ball guide designated generally 178 comprising a tubular body having a hump 132 intermediate its ends; and provided adjacent one end with an elongated longitudinal slot 134. As illustrated in the drawings, the trigger 162 extends across one open end of the tubular ball guide 178, while the opposite end of said ball guide is closed by a wall of the panel 12. A retractile coil spring 182 is connected at one end to the trigger 162 and at its opposite end to the panel 112 so as to exert yielding effort on the trigger 12 and keep it yieldingly advanced into contact with the adjacent end of the ball guide 178. A ball 18% is mounted in the ball guide 178 and by extending an instrument through the slot 184, the ball may be passed over the hump 182 to rest against the closed end of the ball guide 1'78. Obviously, however, when the device tilts to the left, as illustrated in Figure 6, the ball 188 will pass over the hump 182 and roll down the ball guide toward the trigger 162 to operate the same.

Carried by the panel 14 and extending outwardly therefrom intermediate its ends are longitudinally spaced teeth 191 which are adapted to be engaged by a suitable instrument and to serve as a fulcrum for said instrument in forcing the plunger 74 forward to cause the inclined faces 82 of the wedge 86 to move the arms 32 and 34 outwardly and the extensions 36 and 38 into frictional contact with the extension 42 on the contact 40.

In the preferred form of the invention, the arms 32 and 34 are provided adjacent their ends remote from the extensions 36 and 38 with openings 1% in which steel balls 192 are seated and retained by ball retainers 194. These balls are engaged by the oppositely tapered faces 82 of the wedge 81 and serve to facilitate the entrance of the wedge into the space between the contact arms 32 and 34 when the extensions 36 and 38 are forced into frictional contact with the extension 42 on the contact 40.

In use, the circuit breaker 10 is connected to the frame F of a vehicle, as suggested in Figure 1, and the cable 52 is connected to one terminal of the battery B, while the cable 56 is grounded to the frame F. To establish contact between the ground G and the battery B, the contact 40 is moved to the left when viewed in Figure 5 so that the extension 42 thereof projects between the extensions 36 and 38 of the contact arms 32 and 34. By so moving the contact 40, the spring 43 will be compressed to exercise yielding effort on the contact 40 in a direction to withdraw it from its position between the contact extensions 36 and 38. in order to hold the contact 40 in its projected position, an instrument such as a screw driver is engaged with one of the lugs or teeth 191 and by using said tooth as a fulcrum, the shank of the instrument will engage the head 78 of the plunger 74 to force the wedge 80 into contact with the balls 192 and force the lower ends of the contact arms 32 and 34 outwardly whereby the extensions 36 and 38 will be frictionally engaged with the contact extension 42 to hold the contact 4% projected against the effort of the spring 48. As the plunger 74 is advanced to move the wedge 80 into contact with the balls 192, the latch 86 will drop under the influence of the spring 126 downwardly behind the stop 76 to hold the wedge 8t projected. Upon the tilting of the device in either direction, as viewed from Figure 5, beyond a predetermined angle, the ball 152 will roll over a hump and engage a trigger 122 which will drop the rock arm 90 and lift the latch 86 out of engagement with the stop 76. This will permit the spring 84 to retract the plunger 74 relative to the contact arms 32 and 34 to withdraw the wedge 80 from its position therebetween, thus releasing any frictional contact of the extensions 36 and 38 from the extension 42 of the contact 40. This will permit the contact 40 to move under the influence of the spring 48 so as to break any electrical contact between the contact 49 and the contact arms 32 and 34. In this way, the connection of the battery B to ground is broken and any supply of electrical energy to any of the elements of the vehicle is discontinued. Obviously, in resetting the device, the contact 40 is moved against the efiort of the spring 48 to again project the extension 42 between the contact extensions 36 and 38 of the contact arms 32 and 34 and by forcing the head 78 against the effort of the spring 84-, the wedge 80 will again be driven between the contact arms 32 and 34 and held by the latch 86.

While in the foregoing there has been shown and described the preferred embodiment of this invention, it is to be understood that minor changes in the details of construction, combination and arrangement of parts may be resorted to without departing from the spirit and scope of the invention as claimed.

What is claimed is:

1. A tilt actuated circuit breaker comprising a pair of contact arms mounted intermediate their ends to move in intersecting arcuate paths, a contact mounted adjacent one end of said pair of contact arms to advance in a rectilinear path which intersects the arcuate paths, spring means mounted adjacent said arms and engaging the contact for retracting it relative to said contact arms, a wedge mounted adjacent the contact arms for advance therebetween into wedging engagement therewith to cause said arms to move in their arcuate paths and frictionally engage the contact and hold it projected against the effort of the spring yielding means mounted adjacent the arms and engaging the wedge for retracting it relative to the arms, and a tilt released latch mounted adjacent the 6 wedge for engaging it and holding it advanced against the etfort of the yielding means.

2. A tilt actuated circuit breaker comprising a pair of contact arms mounted intermediate their ends to move in intersecting arcuate paths, a contact mounted adjacent one end of said pair of contact arms to advance in a rectilinear path which intersects the arcuate paths, spring means mounted adjacent said arms and engaging the contact for retracting it relative to said contact arms, a wedge mounted adjacent the contact arms for advance therebetween into wedging engagement therewith to cause said arms to move in their arcuate paths and frictionally engage the contact and hold it projected against the effort of the spring yielding means mounted adjacent the arms and engaging the wedge for retracting it relative to the arms, a latch mounted adjacent the wedge for engaging and holding it advanced against the effort of the yielding means, and triggers mounted adjacent opposite ends of the wedge and operatively connected to the latch for releasing said latch when the angle of the circuit breaker attains a predetermined value.

3. A tilt actuated circuit breaker comprising a pair of contact arms mounted intermediate their ends to move in intersecting arcuate paths, a contact mounted adjacent one end of said pair of contact arms to advance in a rectilinear path which intersects the arcuate paths, spring means mounted adjacent said arms and engaging the contact for retracting it relative to said contact arms, a wedge mounted adjacent the contact arms for advance therebetween into wedging engagement therewith to cause said arms to move in their arcuate paths and frictionally engage the contact and hold it projected against the effort of the spring yielding means mounted adjacent the arms and engaging the wedge for retracting it relative to the arms, a latch mounted adjacent the wedge for engaging and holding it advanced against the eitort of the yielding means, a ball guide mounted below the contact, a hump intermediate the ends of the ball guide, a ball within the ball guide for movement toward one end thereof and over the hump when the circuit breaker tilts beyond a predetermined angle to the horizontal, a trigger mounted adjacent the ball guide and intersecting the path of movement of the ball as it moves over the hump, and said trigger being operatively connected to the latch for releasing it upon engagement of the trigger by the ball.

References Cited in the tile of this patent UNITED STATES PATENTS 1,692,155 Brownell Nov. 20, 1928 2,037,779 Granor Apr. 21, 1936 2,644,051 Maloot June 30, 1953

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US1692155 *Jul 17, 1924Nov 20, 1928 brownell
US2037779 *Jan 18, 1934Apr 21, 1936Jerome Katz And Samuel GranoffSafety device for motor vehicles
US2644051 *Jan 2, 1952Jun 30, 1953Maloof Richard NAutomatic safety switch
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3882957 *Jun 20, 1974May 13, 1975Sgl Ind IncVehicle roll-over protection device
US4144422 *Jul 14, 1977Mar 13, 1979Orfelio RamosTilt actuated circuit breaker
US4669990 *Jul 30, 1984Jun 2, 1987Mcdermott KevinSignal device
Classifications
U.S. Classification200/61.52, 200/318, 200/537
International ClassificationH01H35/02
Cooperative ClassificationH01H35/027
European ClassificationH01H35/02D