Vehicle motor expanding spring coupling - has coil spring expanded within coil spring expanded within cylinder by top hat shape part in motor shaft

摘要

The outside of the top hat shaped part is provided with gearing so that it can be driven round by a motor and pinion. A hollow shaft is mounted inside the top hat part. this shaft extends axially outside the coupling. A radial cam is mounted on this shaft. The cam fits between the inward pointing ends of the coil springs. When the cam and coil spring engage, the coil spring will be pressed harder against the inside dia. of the top hat. A second shaft fits over the first shaft and is attached to it by means of a torsion bar which runs coaxial with it. This shaft has a rim with cut out. The edges of the cut out can be made to push against the radially inward pointing ends of the coil spring.