Patent ID: 6648380
Filing Date: 2003-11-18
Classification: E05B,Y10S,Y10T

Abstract:
A door lock for a door of a motor vehicle, the door lock comprising:a rotary latch (11) having a main catch (17); a locking member (10) configured to be introduced into the rotary latch (11) during closing of a door of a motor vehicle and to pivot the rotary latch (11) from an open position into at least one locking position; a spring-loaded (28) retainer (20) configured to engage in one of the at least one locking positions the main catch (17), wherein the retainer (20) has a counter shoulder (33); a working member (47) configured to indirectly lift the retainer (20); a motor (40) acting on the working member (47); a storing member (22) having a control surface (23) and a counter control surface (29); a force storage device (30) loading the storing member (22), wherein the storing member (22) has a shoulder (32) configured to contact the counter shoulder (33) for lifting the retainer (20) away from the main catch (17) by discharging the force storage device (30); wherein the motor (40) has a first motor drive phase for moving the working member (47) in order to charge the force storage device (30); wherein the motor (40) has a second motor drive phase for moving the working member (47) against the counter control surface (29) during lifting of the retainer (20) out of the main catch (17), wherein the second motor drive phase is time-delayed relative to the first motor drive phase; wherein, in a crash situation, forces of the motor (40) applied successively in the first and second motor drive phases onto storage device are used for lifting the retainer (20); wherein, in a disturbance situation, an additionally required force of the motor for lifting the retainer (20) is indirectly transmitted via the storing member (22) onto the retainer (20) so that the forces successively applied in the first and second motor drive phases are transmitted simultaneously from the shoulder (32) of the storing member (22) onto the counter shoulder (33) of the retainer (20).