SAFETY BELT WEBBING EMERGENCY LOCKING APPARATUS

摘要

Clamping (35) means for selectively clamping safety belt webbing (11) against further movement relative to the clamping means and an inertia responsive means (55) for operating the clamping means independently of webbing movement to a webbing clamp position in response to changes in vehicle inertia, the clamping means including a wedge shaped clamp member (45) having a high strength, resilient and high coefficient of friction material provided for engaging the webbing portions to be clamped, biasing means (66) for normally biasing the wedge member (45) toward a webbing clamping position, releasable retaining means for normally holding the wedge member against movement under its bias and tripping means operated in response to changes in vehicle inertia for releasing the retaining means to allow wedge movement under its bias to the webbing clamping position. The vehicle inertia activated clamping means may be employed as the sole restraint apparatus of a safety belt or in combination with an emergency locking retractor to provide a dual locking system.