Electrically-opened latch, in particular for motor vehicle doors
First Claim
1. A latch for a motor vehicle door, said latch comprising a keeper, a case, a support plate, a bolt pivotally mounted on the support plate, a cath pivotally mounted on the support plate, a first resiliently yieldable element for returning the catch into cooperative engagement with the bolt, the catch being cooperative with the bolt so as to maintain the bolt in a closing position of the latch under the action of the first resiliently yieldable element, a lever rotatively mounted on the case, an electric control system for controlling the opening of the latch and capable of driving the lever and for pivoting the catch in opposition to the action of the first resiliently yieldable element and releasing the bolt and the keeper inserted in the bolt, the electric control system comprising a motor of sufficient power to overcome the resistance of the first resiliently yieldable element and having a low reversibility torque and a second resiliently yieldable element interposed between the motor and the lever, said second resiliently yieldable element being resiliently stressed by the motor and being resiliently released when the motor no longer carries current so as to return the motor to the initial position of the motor, the lever and the catch being resiliently returned to the initial position thereof after release of the bolt and the pivoting of the bolt to its opening position.
1 Assignment
0 Petitions
Accused Products
Abstract
The latch comprises a bolt 20 pivotally mounted on a support plate 10, a latch 3 cooperative with the bolt, a rotatable lever driven in rotation by an electric system 9, 7, 5, 6 for opening the latch for pivoting the catch 3 and releasing the bolt 20. The electric system comprises a motor 9 having a low reversibility torque and sufficient power, and a spiral return spring 8 which is stressed during the opening by the rotation of the motor 9, this spring 8 being capable of being resiliently released when the motor 9 is no longer carrying current, after the opening of the latch, so as to permit the return of the lever 4 and of the latch 3 to their initial position under the effect of their own springs 21, 29.
79 Citations
7 Claims
- 1. A latch for a motor vehicle door, said latch comprising a keeper, a case, a support plate, a bolt pivotally mounted on the support plate, a cath pivotally mounted on the support plate, a first resiliently yieldable element for returning the catch into cooperative engagement with the bolt, the catch being cooperative with the bolt so as to maintain the bolt in a closing position of the latch under the action of the first resiliently yieldable element, a lever rotatively mounted on the case, an electric control system for controlling the opening of the latch and capable of driving the lever and for pivoting the catch in opposition to the action of the first resiliently yieldable element and releasing the bolt and the keeper inserted in the bolt, the electric control system comprising a motor of sufficient power to overcome the resistance of the first resiliently yieldable element and having a low reversibility torque and a second resiliently yieldable element interposed between the motor and the lever, said second resiliently yieldable element being resiliently stressed by the motor and being resiliently released when the motor no longer carries current so as to return the motor to the initial position of the motor, the lever and the catch being resiliently returned to the initial position thereof after release of the bolt and the pivoting of the bolt to its opening position.
Specification