TOOL HOLDER WITH SPRING-OPERATED NUT

摘要

A tool holder includes a hollow supporting member on which there is threaded a locking ring which is urged to its locked position by a spring, there being a combined latch and release pin for holding the locking ring in the unlocked position, and responsive to the reception of a tool to be automatically released for automatically tightening the locking ring. The locking ring has an ear that is received between shoulders that encircle the tool so that tightening of the ring cams the tool into the supporting member, and loosening of the ring cams the tool out of the supporting member.