| 摘要 |
<p>The plug-in component board (1) which supplies power to other units in a component magazine has a switch (3) positioned by the front cover plate (2), with its operating lever formed as a rocker arm (4). The front plate (2) has a hole (5) in it into which the board withdrawal tool is inserted, and a slider (6) - formed from a flat material - which can be displaced vertically up or down the rail formed by a section of the front plate (2). The slider (6) has a flat projection (7), protruding at right angles to it, which pushes the switch rocker (4) into the 'off' position when the slider (6) is at the lower end of its travel. When the slider (6) is in this position, a flat plate attached to it uncovers the hole (5) in the front plate (2) and allows the withdrawal tool to be inserted. The slider (6) also has a locking nose (8) which hooks under a cross rail (9) in the component magazine when it is in the 'up' position. This makes it impossible to withdraw the board without the switch (3) being pushed into the 'off' position.</p> |
