| 摘要 |
<p>In a headrest (100), a first connecting portion (3), including a first link (3a) and a second link (3b) relatively rotatably supported, is provided between a base portion (1) and a receive portion (2) movable between first and second positions adjacent to/separate from the base portion. A drive portion (5) drives the first connecting portion through a drive input portion (4) provided at least at the first or second link by applying a driving force to the drive input portion in a moving direction of the receive portion toward the second position. A first/second end portion (3aa, 3ab) of the first link is supported by the base portion/receive portion through a first/second pivot point (1a, 2b). A first/second end portion (3ba, 3bb) of the second link is slidably connected to a first/second guide portion (1b, 2a) provided at the base portion/receive portion through a first/second connecting point (1c, 2c).</p> |
