| 摘要 |
<p>A first swinging member is connected to a rack mount unit for swinging movement around a first horizontal axis. A second swinging member is connected to a rack for swinging movement around a second horizontal axis. The second swinging member is coupled to the first swinging member around a third horizontal axis extending in parallel with the first horizontal axis. The rack mount unit is pulled out forward from the rack along a horizontal plane. The first horizontal axis follows the forward movement of the rack mount unit. The second horizontal axis is prevented from moving, since the second horizontal axis is connected to the rack. The first and second swinging members expand around the third horizontal axis. The holding members of the first and second swinging members hold a wire on the first and second swinging members. The wire is thus prevented from tangling.</p> |
