Releasable coupler for hand drill accessory - has tubular clamp, with one end coupled directly to drill shaft, and other end to fixed accessory part

摘要

Over the end of the outer cover (2) of the accessory flexible drive is a rubber sleeve (4). An end piece (5) pushes firmly into the sleeve and has a bore allowing a rotary drive cable (3) to be passed through it. On the end of the cable is a bush (7) which is clamped in the drill chuck (10) to connect the drive. A cylindrical housing (6) is clamped to the portable drill with a clip (15) at one end and secured to the end piece by screws at the other end. A chuck key (11) can be inserted through an aperture (12) in the housing, when a cover ring (13) with a similar aperture is in matching alignment. ADVANTAGE - Simple and safe handling.