| 摘要 |
A lock provided with a gear device for actuating at least one bolt (8) for closing a door, window and the like, comprising a gear (31) which is operatively associated with the bolt (8) and a pinion (23) which meshes with the gear (31), the pinion (23) having a slot which lies radially between two teeth (25) and is formed by two side walls (27,28) between which the bit (16) of a cylinder (14) is arranged with play, the cylinder (14) being inserted in the lock through the pinion (23), the bit (16) forming, together with the side walls (27,28) of the slot, two interspaces which are arranged upstream and downstream of the bit (16) with respect to the direction of rotation of the bit (16), the gear (31) having at least one pair of adjacent teeth (32,33) which form a tooth space (34) which can be engaged by the bit (16) at each turn of the pinion (23) and are shaped so that the tooth (32) of the pair that engages the interspace (29) arranged downstream of the bit (16) produces, during the rotation angle in which the driven tooth (32) remains engaged in the interspace (29), the approach and abutment of the bit (16) against the side wall (28) arranged downstream of it. <IMAGE> |
