Buckle

摘要

A buckle for a vehicle safety restraint for use with a pretensioner has an actuating button (1) for operating a latch for the tongue of the safety restraint. The button (1) is connected via pulleys (17, 18) to a counterbalancing mass (20). When the pretensioner is operated, and the buckle is retracted, the inertia of the mass (20) counteracts the inertia of the button (1). Thus the button (1) is prevented from moving in relation to the buckle, in a direction which would tend to unlatch the tongue of the safety restraint.