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Publication numberUS3858921 A
Publication typeGrant
Publication dateJan 7, 1975
Filing dateJul 27, 1972
Priority dateJul 28, 1971
Also published asDE2237998A1, DE2237998B2, DE2237998C3, DE7228648U
Publication numberUS 3858921 A, US 3858921A, US-A-3858921, US3858921 A, US3858921A
InventorsNobuyuki Kuki
Original AssigneeAisin Seiki
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Vehicle door handle assembly
US 3858921 A
Abstract  available in
Previous page
Next page
Claims  available in
Description  (OCR text may contain errors)

United States Patent 1191 Kuki [ VEHICLE DOOR HANDLE ASSEMBLY [75] Inventor: Nobuyuki Kuki, Toyota, Japan [73] Assignee: Aisin Seiki Kabushiki Kaisha,

- Kariya-City, Aichi Pref, Japan [22] Filed: July 27, 1972 [21] Appl. No: 275,896

[30] Foreign Application Priority Data July 28, 1971 Japan 46-56641 [52] U.S. Cl..... ....'292/336.3, 292/210, 292/D1G, 65 [51] Int. Cl. E05c 3/26 [58] Field of Search 292/153, 196, 210, 223,

292/336.3, 347, DIG. 65

1 1 References Cited I UNITED STATES PATENTS 299,712 6/1884 Adams 292/210 812,107 2/1906 Wirfs 292/210 2,309,049

1/1943 Curtiss, Jr. et al 292/223 X Jan. 7,1975

2,927,812 3/1960 Smith et al 292/196 2,944,848 7/1960 Mandolf 3,544,148 12/1970 Sandor 3,606,428 9/1971 Erck et al 3,652,112 3/1972 Panelli 292/210 Primary ExaminerRichard E. Moore Attorney, Agent, or Firm-Holman & Stern 57 ABSTRACT A vehicle door handle assembly, characterized by that r the handle is divided into a main handle and an auxiliary handle, the latter being pivotably mounted on the I former and the latter being capable of performing a 'pivoting movement in advance 011' that of the main handle when the assembly is subjected to a door opening manual effort and that mechanical latch means are provided between the both handles for the prevention of unintentional pivotal movement of the main handle upon reception of mechanical shocks.

3 Claims, 4 Drawing Figures VEHICLE DOOR HANDLE ASSEMBLY BACKGROUND OF TI-IE INVENTION This invention relates generally to improvements in and relating to vehicle door handle assemblies, and more specifically, it relates to a shock-proof safety device in such vehicle door handle assemblies for providing absolute safety against lateral mechanical shocks as may occur during vehicle collision.

SUMMARY OF THE INVENTION The main object of the present invention is to provide a safety device of the above type to assure safety of vehicle door handle assemblies and prevent unintentional opening-of the door latch so that safety provisions, especially those prevailing in the United States concerning the required use of safety devices for vehicle door handle assemblies which prevent accidental and occasional door opening and latch-release, are met.

BRIEF DESCRIPTION OF THE DRAWINGS This and further objects, features of the invention will become. more apparent from the following detailed description thereof taken by reference to the accompanying drawings, in' which: 1 I

FIG. 1 is a front view of a preferred embodiment an automotive outside door handle according to the instant invention, the handle being shown in its regular position. v 7

FIG. 2 is a rear perspective view of the door handle of FIG. 1.

FIG. 3 is a sectional view taken substantially along a section line IIIIII in FIG. 1. I

FIG. 4 is a similar view to FIG. 1 illustrating the operation of the door handle. 7

DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS Referring now to the accompanying drawings, nu-- mere] 10 represents a base member which is attached to the inside of a door of an automotive vehicle, not shown, by means of two fixing bolts 11 and 12. This base member 10 is fitted with a pair of supporting members 13 and 14 on which are pivotably mounted bell crank levers l6 and 17 of a main handle 15, respectively, by means of respective hinge pins 18 and 19. It should be noted that in FIGS. 3 and 4, a corresponding pin-receiving opening is denoted with the same reference numeral 18.

A spring 20 is attached by one of its end to the bell crank lever 17 which is called arm frequently by those skilled in the art, and by its other end to the supporting member 14 of the base member sothat the main door handle 15 is resiliently urged to rotate in clockwise direction in FIG. 3. With this arrangement, the main handle 15 is kept in its normal position by pressure contact with stop pins 21 and 22, as shown by full lines and dotted lines.

Main handle 15 is formed with a connecting opening 23 by which a cable, not shown, is operatively connected with a pawl member of a door latch mechanism, not shown.

With the arrangement shown and described so far, when an operator grips the main handle 15 from below and draws it towards him so as to bring it from its full line position to its chain-dotted line position by pivoting it counter clockwise as shown in FIG. 4, the pawl member of the door latch mechanism is forced to disengage and the door is opened.

The mechanism so far shown and described isalready known in the art.

Since the main door handle is heavy and the center of gravity thereof is situated at a considerable distance from the pivotal center of the main door handle, when the vehicle is subjected to a lateral shock relative thereto, such as during an accidental lateral vehicle collision fromthe opposite directionrelative to the vehicle body side at which the door handle unit under consideration is positioned, a substantial amount of inertia force will act upon the main handle 15 to urge the latter to swivel counter clockwise in FIG. 3. Therefore, there is a substantial threat that the door will open. It would be conceivable to strengthen the spring 20 to avoid such accidental door opening in an emergency. However, the use of a stronger spring as at 20 would be detrimental to the operational desirability of this type of door handle especially when an operator tries to open the door. In addition, a corresponding increased space must be provided for such a heavy'spring. In'the present invention, the main door handle 15 is fitted'piv- When the operator introduces his fingers into the I cavity of main handle 15 from below and exerts a manual effort to swivel the latter to open the door, the auxiliary handle is at first-swiveled counter clockwise in FIG. 3 and the engagement between the projection 27 and the shoulder or tooth 28 .is released, and only thereafter, does the main handle swivel and the door is opened. The design and arrangement of the auxiliary handle 24 are 50 selected that its center of gravity corresponds as closely as possible to the center of pivotal movement of the auxiliary handle which is also made of a lighter material so as to represent as small a weight as possible, for avoiding unintentional pivotal movement when subjected to an outside lateral shock.

It will be clear from the foregoing that due to the principles of the present invention, and automotive door handle assembly is provided which completely satisfies the provisions of the US. Automotive Safety Standard whereby the pawl in the: door latch mechanism does not move during vehicle collision or the like.

It will be further clear that the'invention may be carried out in various modified ways other than the sole embodiment so far shown and described, which modifications will be within the scope of the appended claims.

The embodiments of the invention in which an exclusive property or privilege is claimed are as follows:

1. A door handle safety locking assembly for a vehicle door, which door is normally held in a closed position by a latch mechanism, said assembly comprising:

base means for fixed attachment to the vehicle door;

main handle means for operative association with a latch mechanism of the door, said main handle means being pivotally movable on said base means between a first position and second release position;

' auxiliary handle means pivotally mounted on said main handle means and operatively movable by abutment therewith toward the release position; 5

manually displacable check means displacably connected between said auxiliary handle means and said base means for normally preventing relative pivotal movement of said main handle means between said first and second position, whereby a door latch mechanism is only released to open the door upon a first pivotal movement of said auxiliary handle means followed by a second pivotal movement of both said auxiliary handle means and said main handle means to said second position thereof, said first and second pivotal movements occurring consecutively and continuously.

2. An assembly as claimed in claim 1 wherein saidcheck means comprises a projection on said base means in the path of pivotal movement of a portion integral with said auxiliary handle, and said auxiliary handle includes a toothed portion on said auxiliary handle means, said toothed portion normally engaging. said projection when said main handle means is in said first position which prevents movement of the main handle to said second door-opening position, said toothed portion being disengaged from the projection when the auxiliary handle means is manually displaced to permit the main handle to move and assume the second pivotal movement.

3. An assembly as claimed in claim 2 wherein the center of gravity of said auxiliary handle means is located in close proximity to its center of pivotal movement so that the moment of inertia of the auxiliary handle is reduced to a minimum.

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US299712 *Nov 6, 1883Jun 3, 1884 Eobeet adams
US812107 *Mar 23, 1905Feb 6, 1906Edward J WirfsLatch for refrigerator-doors.
US2309049 *Jun 27, 1940Jan 19, 1943Stanlev WorksRefrigerator latch
US2927812 *Jun 14, 1957Mar 8, 1960Clark HartwellPivotable bolt latch
US2944848 *Feb 10, 1958Jul 12, 1960Langley CorpLatch
US3544148 *Nov 21, 1968Dec 1, 1970Gen Motors CorpLatch operating door handle
US3606428 *Jul 9, 1969Sep 20, 1971Volkswagenwerk AgSafety device for motor vehicle door locks
US3652112 *Jun 16, 1970Mar 28, 1972Fiat Soc Per AxioniLocking device for a hinged window in a motor vehicle
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3967844 *Nov 14, 1974Jul 6, 1976Aisin Seiki Kabushiki KaishaOutside door handle assembly for vehicles
US4195866 *Nov 16, 1978Apr 1, 1980General Motors CorporationLock for removable roof closure latch mechanism
US4412696 *Jun 18, 1981Nov 1, 1983Nissan Motor Company, LimitedDoor handle device for an automotive vehicle
US4475415 *Jan 4, 1982Oct 9, 1984Kokusan Kinzoku Kogyo Kabushiki KaishaOutside door handle
US4588219 *Aug 9, 1982May 13, 1986Ohi Seisakusho Co., Ltd.Door handle unit suitable for use in an automobile
US4653143 *Mar 3, 1986Mar 31, 1987General Motors CorporationVehicle door handle assembly
US5123687 *Feb 1, 1991Jun 23, 1992Mercedes-Benz AgGrip control for a handle for unlocking vehicle doors
US5211436 *Apr 30, 1990May 18, 1993Emil FederHandle device for use on trunk lids of automobiles
US5769471 *Sep 3, 1996Jun 23, 1998Aisin Seiki Kabushiki KaishaApparatus for unlocking a door lock for a vehicle
US6010167 *Dec 11, 1997Jan 4, 2000Aisin Seiki Kabushiki KaishaOutside door handle assembly for a vehicle
US6039366 *Mar 13, 1998Mar 21, 2000Adac Plastics, Inc.Door handle assembly and method of mounting
US6123386 *Apr 28, 1999Sep 26, 2000Daimlerchrysler CorporationDual action rear gate door handle assembly
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US6454325Dec 20, 1999Sep 24, 2002Daimlerchrysler CorporationClosure hand lever that can be used in confined environments
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US6571516 *Apr 16, 2001Jun 3, 2003Fuji Jukogyo Kabushiki KaishaLocking device for a vehicle door with a connection between a handle unit and a door latch unit
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U.S. Classification292/336.3, 292/210, 292/DIG.650
International ClassificationE05B65/20, E05B65/12, E05B65/26
Cooperative ClassificationY10S292/65, E05B85/18, E05B77/06
European ClassificationE05B85/18