| 摘要 |
A seat height adjusting device includes first and second brackets spaced away from each other, an arm disposed between the first and second brackets and having first and second ends pivotally mounted on the first bracket and a seat support, a spur gear operable to rotate the arm, first and second latches engageable with the spur gear, and a handle rotatably mounted on the first or second bracket. One of the first and second brackets is joined to a seat frame. When the seat is raised, the handle is operated to intermittently engage the first latch with the spur gear, thereby rotating the spur gear in a first direction to drive the arm. To lower the seat, the handle is operated to intermittently engage the second latch with the spur gear, thereby rotating the spur gear in a direction opposite the first direction to drive the arm.
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