A door handle mounting device for a motor vehicle includes a door handle mount with a receiving space and a closing device attached to the door handle mount which is accommodated at least in part in the receiving space. The closing device includes a housing and a cylinder core rotatably supported in the housing and an actuator that is non-rotatably connected to the cylinder core for actuating a lock of the motor vehicle. A return element which exerts a return force on the actuator retains the actuator in its initial position or returns it thereto. The actuator is adapted to be rotated against the return force of the return element from the initial position and to an unlocking position or into a locking position. The return element is disposed lying radially surrounding the cylinder core and outside of the housing.

A key cylinder device includes: a key cylinder that is turnable between an operation position at which a door lock device can be switched and a non-operation position at which the door lock device cannot be switched; a pulling member that is moved in a first direction by turning of the key cylinder from the non-operation position to the operation position and is moved in a second direction by the turning of the key cylinder from the operation position to the non-operation position; and a connecting mechanism for connecting the pulling member to the door lock device. In the key cylinder, a first biasing member that biases the key cylinder from the operation position to the non-operation position is disposed. In the connecting mechanism, a second biasing member that biases the pulling member to move in the second direction is disposed.

A redundant actuation lock apparatus includes an interface, an electronic mechanism, and a manual mechanism. The interface manipulates lock bar(s) into a locked/unlocked position. The electronic mechanism includes an actuator and power drive. The actuator is disengageably coupled to and drives the interface. The power drive is coupled to and drives the actuator in response to a control signal. The manual mechanism includes a key input and an output. The key input receives and rotates with a mechanical key. The output disengageably couples to the interface and rotates with the mechanical key. The actuator is engaged with and the output is disengaged from the interface in an electronic mode, while the actuator is disengaged from and the output is engaged with the interface in a manual mode.

A redundant actuation lock apparatus includes an interface, an electronic mechanism, and a manual mechanism. The interface manipulates lock bar(s) into a locked/unlocked position. The electronic mechanism includes an actuator and power drive. The actuator is disengageably coupled to and drives the interface. The power drive is coupled to and drives the actuator in response to a control signal. The manual mechanism includes a key input and an output. The key input receives and rotates with a mechanical key. The output disengageably couples to the interface and rotates with the mechanical key. The actuator is engaged with and the output is disengaged from the interface in an electronic mode, while the actuator is disengaged from and the output is engaged with the interface in a manual mode.