Motor vehicle door lock or the like

Details Motor vehicle door lock or the like Motor vehicle door lock or the like

1999-02-08

2000-05-16

Pham, Teri

Closure fasteners

Bolts

Swinging

292216, 292DIG23, E05C 306

Patent

active

060626135

DESCRIPTION:

BRIEF SUMMARY
BACKGROUND OF THE INVENTION

1. Field of the Invention
The invention relates to a motor vehicle door locks including motor vehicle hood locks, tailgate locks, etc. including a dynamic actuation linkage extending from the outside and inside door handles to a detent pawl in which the dynamic actuation linkage may be made engaged or disengaged by a controller including a control disk with a plurality of peripherally located control cams, each of the control cams corresponding to a plurality of functional positions.
2. Description of the Related Art
Various types of control drives for motor vehicle door locks are known in the art, especially those for side doors of motor vehicles. One well known embodiment of a prior art control drive is disclosed in the published European Patent application EP-A-0 478 013 in which discloses a control drive including a control means with a control disk which overturns a corresponding actuating lever in a dynamic actuation linkage between an inside door handle or outside door handle and a detent pawl and thus, acts upon a lever mechanism such that the dynamic actuation linkage is either disengaged or engaged.
The German Patent DE-C-195 00 509 discloses another known motor vehicle door lock or the like including a control means with a control disk which has a single cam movably supported in a radial direction. The cam is rotatable to different angular positions by turning the control disk through a drive motor and the cam interacts with different levers or arms of the lever so that different operating positions, such as "locked", "unlocked", "theft-proof" and optionally, "child-proof" operating positions, can be attained by acting upon a relatively complicated lever mechanism. The complexity of the lever mechanism arises from the fact that the levers are arranged in an arc around the control disk and are used to attain the different functions by a way of slotted journal structures.
The aforementioned explanation clearly illustrates that in the prior art motor vehicle door locks, the construction of the control means is already largely simplified. However, as discussed above, the lever mechanisms that are used make the overall system of the motor vehicle door lock rather complicated.


SUMMARY OF THE INVENTION

Therefore, a primary object of the present invention is to provided an improved motor vehicle door lock or the like with a simplified structure and design without adversely affecting the cost or operating reliability.
The aforementioned object is achieved in a motor vehicle door lock or the like comprising a housing with a detent pawl including a lock catch, a dynamic actuation linkage extending from an outside door handle and an inside door handle to the detent pawl through which the detent pawl can be actuated to trigger the lock catch and open a motor vehicle door, and a controller including a control disk with a plurality of peripherally located control cams, each of the control cams corresponding to a plurality of functional positions including a "locked" position and an "unlocked" position. The positioning of the controller positions one of the control cams such that the control cam interacts within a control segment of the dynamic actuation linkage such that in the "locked" position, the dynamic actuation linkage to the outside door handle is disengaged so that the motor vehicle door cannot be opened by the outside door handle but the dynamic actuation linkage to the inside door handle is engaged so that the motor vehicle door can be opened by the inside door handle, and in the "unlocked" position, the dynamic actuation linkage is engaged to both the outside door handle and the inside handle so that the motor vehicle door can be opened by both outside and inside door handles. In other embodiments, the motor vehicle door lock also include a "theft-proof" position in which the dynamic actuation linkage path is disengaged to both the outside door handle and the inside handle so that the motor vehicle door cannot be opened by either door handles, and also a "child-proof

REFERENCES:
patent: 4904006 (1990-02-01), Hayakawa et al.
patent: 4948183 (1990-08-01), Yamada
patent: 5180198 (1993-01-01), Nakamura et al.
patent: 5474338 (1995-12-01), Buscher
patent: 5667260 (1997-09-01), Weyerstall
patent: 5934717 (1999-08-01), Wirths et al.
patent: 5938253 (1999-08-01), Szablewski et al.

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