Coupling for a deployable safety element in a vehicle, in particular a roll-over bar

摘要

The roll-over bar or safety element can be moved from a rest or storage position into a working position in which it is coupled to the vehicle. The coupling is formed by an annular groove (5) in the ends of the part to be secured into which coupling balls (4) can be forced. The balls are held in cage of sleeve (2) with radial holes. The balls are pushed inward into the annular groove by an outer sleeve which has a conical bore. The outer sleeve is held down by a spring (7) and forms an anchor for an electro-magnet which is operated by a sensor.