| 摘要 |
<p>A mounting mechanism for a seat reciprocally movable on a surface is provided with a seat support having wheels for rolling engagement on the surface. A locking member is selectively movable between a locking position in which the locking member is releasably engaged between at least one of the wheels and the surface to prevent movement of the seat support on the surface in one direction and a released position in which said locking member is not engaged with both the one wheel and the surface to permit movement of the seat support along the surface in the one direction.</p> |
