| 摘要 |
<p>An electrical driven toothbrush has a rotatable shaft (12) with a remote end (20) which fits into a slot (22) in a bristle holder (13). The holder (13) is mounted for rotation on a post (18) supported by a head (11). When the shaft (12) rotates, the remote end (20) describes a circle and drivingly engages the slot (22) to cause the holder (13) to vibrate.</p> |
