Winder safety device, particularly for ski boots.

摘要

Winder safety device (1) comprising a knob (2) which is provided with a stem (3) rotatably associated with a supporting element (5), provided on a portion (6) of a ski boot, and whereto is pivoted a winder (9) of traction elements (13) cooperating with locking and unlocking elements (17). A drive wheel (7) is keyed to the knob (2) and oscillates axially with respect to the stem (3), and is provided with a first gear (10) which meshes unidirectionally with a facing second gear (14) rigidly associated with the winder (9). The configuration of the first gear (10) and of the second gear (14) is such that the two gears (10,14) engage without meshing upon a rotation opposite to the one for the winding of the traction elements (9).