Robert Boschgmbh

Bernardo Erices

Bernd Weyerstall

Simon Brose

Robert Hugel

Matthias Koerwer

Ulrike Lohfeld

The subject matter of the invention is a motor vehicle door lock which can be locked and unlocked by motor and can be opened both mechanically and also by motor, with a lock mechanism with several interacting elements, and the outside actuating element () which can be actuated by hand from the outside door handle can actuate a release element or directly a lock element (), especially a detent pawl, via a coupling element () in the coupled position and in the decoupled position executes an idle stroke, and the coupling element () can be moved by motor from the coupled position into the decoupled position and vice versa when the outside actuation element () is not actuated, for motorized actuation of the coupling element () there being a central interlock drive () and the central interlock drive () in a second function can also actuate the release element or the lock element (). This is characterized in that normally opening actuation takes place mechanically only with the outside actuation element () and that the central interlock drive () in the second function actuates the release element or the lock element () only when the outside actuating element () is already in the idle stroke in this phase.

Motor vehicle doorlock with combined central locking and opening actuator

A motor vehicle electric door lock with an outside housing which is essentially closed on all sides, with an inlet channel for a key collar and located in the outside housing, a rotary latch, a detent pawl which holds the rotary latch, a separate detent pawl lever which is dynamically connected to the detent pawl or which is made on the detent pawl as an extension, and an electrical opening drive unit with a drive motor, step-down gearing, and a driven element, the driven element via the detent pawl lever driving the detent pawl in the lifting direction and engaging the actuating section of the detent pawl lever. The drive unit is located in the drive housing which is located in the outside housing and which is sealed relative to the remainder of the outside housing, the driven element of the drive unit is a cam wheel which is located on the outside of the drive housing and the drive shaft of the cam wheel is sealed by a rotary bushing which is routed through the wall of the drive housing.

Motor vehicle electric door lock

Motor vehicle electric door lock and a process for installing a motor vehicle door lock made as an electric lock

A lock for doors of motor vehicles or the like includes a lock catch component mounted for movement between an initial open position and a fully closed position through an intermediate position and includes preliminary and a final abutment. A lock latch component is mounted for displacement between an arresting position and a releasing position in which it engages and disengages one of the preliminary and final abutment of the lock catch component to hold the latter in and release the same for movement out of the intermediate and fully closed position, respectively. An electrically powered auxiliary opening drive is designed to cause the lock latch component to disengage the one of the abutments of the lock catch component to release the latter for movement toward the initial open position. An electrically powered auxiliary closing drive is provided to move the lock catch component from its intermediate into its fully closed position and includes a step-down transmission that is connected with the lock latch component via a driving element and a coupling interposed between the driving element and the lock latch component. The auxiliary closing drive is designed to also be able to act on the lock latch component when necessary. A control device first determines the occurrence of an emergency situation involving the action on the lock catch component of excessive forces making it necessary to employ the auxiliary closing drive to accomplish the disengagement, and then operates the auxiliary closing drive in such a manner after a demand for opening the lock has been issued in the emergency situation that it acts to disengage the lock latch component from the lock catch component.

Electrically operated lock for doors of motor vehicles or the like

The subject matter of the invention is a motor vehicle door lock or the like with a lock latch ( ) and a detent pawl which keeps the lock latch in the main catch and the preliminary catch, with an electrical auxiliary closing drive ( ) which is turned on after the lock latch ( ) has reached a preclosing position and then transfers the lock latch ( ) by motor into the main closing position, and with an electric auxiliary opening drive ( ) which is turned on to raise the detent pawl ( ) off the main catch or the preliminary catch of the lock latch ( ). This door lock is characterized in that the coupling of the auxiliary closing drive ( ) has a mechanical coupling element ( ) which can be raised for decoupling and which can be raised by a correspondingly controlled actuation of the electrical auxiliary opening drive ( ). One version is especially important in which power supply to the electrical auxiliary opening drive ( ) takes place via the extra battery ( ) which is always recharged from the vehicle electrical system ( ) (active electrical redundancy), but power supply of the electrical auxiliary closing drive ( ) takes place directly from the vehicle electrical system ( ).

Door lock of a motor vehicle or the like with an electric locking aid and opening aid

A motor vehicle door lock with a lock latch ( ) and a detent pawl ( ) which holds the lock latch ( ) in the locked position (main catch ( ) and optionally a preliminary catch ( )) and with a motorized opening drive ( ), the motorized opening drive ( ) having a drive motor ( ) which is preferably an electric motor and has a step-down gear ( ) which, on the driven side engages the detent pawl ( ) of a detent pawl lever ( ) or the like which moves the detent pawl ( ) and lifts the detent pawl ( ) when the drive motor ( ) is triggered accordingly, so that the lock latch ( ) is released&mdash;opening position. This releasing is optimized with regard to opening forces by a lifting spring ( ) being provided which acts in the lifting direction of the detent pawl ( ) in association with the step-down gear ( ) or the detent pawl lever ( ) or the like, so that the lifting spring ( ) is tensioned when the opening drive ( ) reverses from the open position into the locked position and so that the lifting spring ( ) reinforces the opening motion and the lifting motion of the detent pawl ( ) with its spring force when the opening drive ( ) is advanced from the locked position into the open position.

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Berg. Gladbach, Germany

Bernardo Erices