US 12,442,227 B2
Door lock for a vehicle, with reduced noise generation
Joachim Kuehnel, Ebersbach (DE)
Assigned to MERCEDES-BENZ GROUP AG, Stuttgart (DE)
Appl. No. 18/570,684
Filed by MERCEDES-BENZ GROUP AG, Stuttgart (DE)
PCT Filed Apr. 29, 2022, PCT No. PCT/EP2022/061566
§ 371(c)(1), (2) Date Dec. 15, 2023,
PCT Pub. No. WO2022/263048, PCT Pub. Date Dec. 22, 2022.
Claims priority of application No. 10 2021 003 155.5 (DE), filed on Jun. 18, 2021.
Prior Publication US 2024/0229522 A1, Jul. 11, 2024
Int. Cl. E05B 85/26 (2014.01); E05B 77/36 (2014.01)
CPC E05B 85/26 (2013.01) [E05B 77/36 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A door lock for a vehicle, the door lock comprising:
a locking element;
a rotary latch configured to form-fittingly hold the locking element in a closed state of the door lock by rotationally engaging around the locking element;
a pawl configured to block the rotary latch from releasing the form-fittingly holding of the locking element in the closed state of the door lock after a closing movement of the pawl;
a wedge system comprising a wedge lever and a connection piece, wherein the wedge lever and the connection piece are configured to perform a movement relative to each other so that the wedge lever and the connection piece are brought into a self-locking contact position to form a self-locking connection for the closed state of the door lock to reduce a relative movement between the locking element and the rotary latch;
a rotatably mounted output lever, wherein spur gearing on a circular-arc-shaped circumferential segment of the pawl contacts a circumference of the rotatably mounted output lever so that, during an opening movement and the closing movement of the pawl, the output lever is rotated by rolling on the circular-arc-shaped circumferential segment of the pawl via the spur gearing; and
a driving lever coupled with the rotatably mounted output lever so that rotation of the output lever during the opening movement of the pawl causes the driving lever to release the self-locking connection between the wedge lever and the connection piece.