| 摘要 |
A desk top work support device having a primary work support member pivotally mounted in an opening in a desk top. A pair of link arms mounted on the primary work support member rotatably support a secondary work support member, and are pivotable to position the secondary work support member in a forward position over the primary work surface and a rearward position to the rear of the primary work surface. A rotating mechanism causes the secondary work support member to rotate with respect to the link arm when the link arm is pivoted. A drive train is provided for rotating the rotating mechanism and the secondary work support bar independently of movement of the link arms, and a second drive train is provided for pivoting the link arms.
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