| 摘要 |
A tool holder (2) for a powered hammer comprising a tube-like tool holder body (66) which has a forward end for non-rotatably receiving a hexagonally cross sectioned shank (3) of a tool. The forward end has an axially extending slot (10). A locking body (54) extends through the slot and is moveable between a radially inward locked position in which it engages an axial closed groove (88) in the tool and a radially outward release position. A locking member (52) and associated sleeve (50) are manually axially slidable to move locking body (54) between the locked and release positions. The tool further includes a brightly coloured warning surface to clearly indicate that the tool has been inserted in an incorrect orientation. In this case, the locking body (54) is prevented from moving radially inwards to its locked position by the shank of the tool. This in turn prevents the locking member and sleeve from returning to the locked position, leaving the warning surface exposed. If the tool is inserted in the correct orientation, axial movement of the tool release sleeve (50) from its release to its locked position covers the warning surface. <IMAGE> |
