| 摘要 |
<p>The holding device secures a unit e.g. a selector button panel for a telephone on a mounting plate, partic. for testing purposes, having one or more elastic holder units movable on the plate. The holder unit (5) is of the pin type, at right angles to the plate (2), forming a right-angled hook (6) at its end furthest from the latter. It swings in the direction of the hook between stops about an axis pin (12) passing through its other end, and works with the pin in a straight guide (13) at right angles to the plane of the plate. Its end furthest from the hook has two ramp faces (19) sloping in opposite directions on either side of the axis pin, and is subject to the action of a spring (14) against one or the other of these faces, parallel to the surface of the plate.</p> |
