| 摘要 |
A work station comprises a work platform that may be mounted on a movable carriage. The work platform may support a keyboard tray on a drawer where the drawer may be moved between a retracted position and an extended position. The tray is mounted for pivoting motion in a first direction and a second direction between a lowered position and a raised position. A gear is operatively connected to the tray such that rotation of the tray causes rotation of the gear. A pawl is biased into engagement with the gear to prevent movement of the tray in the second direction to lock the tray in an angular position when the tray is moved in the first direction. A latch disengages the pawl from the gear when the tray reaches the fully raised position to allow the tray to move in the second direction to the lowered position.
|
