Tool head mounting, uses curved locking part in place of ball to fix tool head inside bushing

摘要

A curved locking part (70) is used to fix the tool head (80) inside a bushing (20). The mounting comprises a bushing, a safety sleeve (30) placed over the bushing and movable in the bushing length direction, and a locking part. The bushing contains a locking opening (23) in one side which is in communication with the space for locating the tool head. The locking part is inserted into the opening in a direction at right angles to the bushing length direction, so that it can be slid between a locking hole in the tool head and a space inside the sleeve. Sliding the locking part into the hole will fix the tool head into position and sliding it into the space inside the sleeve will release the tool head.