Captive function with screw for attaching and detaching the socket and screw captive function with driver -

摘要

PURPOSE: To surely fitting-hold a variety of screws by engaging each opposed piece having the bulging-out bent part for a spring with a pair of spring engagement grooves on a fitting hole opposed inside wall and projecting the opposed bulging-out bent part of each opposed piece from the opposed inside wall of the fitting hole. ;CONSTITUTION: When the screw head 8 of a screw 7 is fitted into a fitting hole 2 on a socket body 1, the top end of a fitted shaft 4 is fitted into a hole 9 on the top end surface of the screw head 8. At the same time, the screw head 8 is nipped by the opposed dog leg-shaped bulging-out bent parts 6a and 6c of a spring 6 which is fitted in a spring engagement groove 5 on the opposed inside wall of the fitting hole 2, and a screw 7 is held in the fitted state in the fitting hole 2. Then, an operating lever is fitted with an operating lever connecting projection 3 at the rear end part, and revolved manually or by an automatic assembly device, and the screw 7 is surely tightened, loosened, or demounted through the screw shaft 4.;COPYRIGHT: (C)1995,JPO