device for in fasthallning could go one of a casing and splint permanent popnit

摘要

The releasable unit (22) is displaceable by a draw bar (4), with its reciproCating movement controlled by an eccentric effect provided by a rotatable wheel (5). The draw bar follows a movement provided by the blind rivet casing (2b) when the wheel rotates. However, the bar can move freely towards the casing when it has passed the furthest position from the casing. The wheel has a track (5b) around its rotary centre. In this track is displaceably located the part (4a) of the draw bar facing away from the casing.