| 摘要 |
FIELD: locksmith's work. ^ SUBSTANCE: the device for control of the degree of projection of the stop latch in the door lock has a lock box, this lock box is provided with a means for transfer of the force for drawing in the stop latch against the spring force and by an auxiliary catch for control of the action of the stop latch, the stop latch has at least two different positions of projection with different degrees of projection. The device has a control unit and a drawing-in unit which is made for engagement with the stop latch and the auxiliary catch so that it allows displacement of the stop latch to its most projecting position only in case both the stop latch and the auxiliary catch are first shifted to their drawn-in position in the lock box. ^ EFFECT: provided check-up of the degree of projection of the stop latch in the door lock. ^ 6 cl, 4 dwg |
