| 摘要 |
<p>A tool is provided for inserting and extracting drawing pins which has a hollow cylindrical barrel (22), serving as a holder and also a container for drawing pins, and a tool head (21) at one end of the barrel (22), preferably of reduced diameter, the extreme axial end face of which is in the form of an inwardly-directed radial flange (23) to retain the head of a drawing pin engaged behind it while allowing the shank of the pin to project axially. For insertion and removal of the drawing pin heads, either the end flange (23) is annular and surrounds a circular aperture large enough to allow axial passage of a drawing pin head, or the flange (23) and the rim bearing it are formed with a sectoral cut-out (24) to allow lateral passage. An axial well in the tool head behind the flange contains a small permanent magnet (20).</p> |
