| 摘要 |
A cup holder includes: a support housing; an elevator housing, movable within the support housing; a cup bearing tray, movable within the elevator housing; and an elevator unit that moves the elevator housing and the cup bearing tray in opposite directions. The elevator unit includes: a main gear that is linked with the cup bearing tray and is pivotably installed on the support housing, a rack gear that is linked with the elevator housing, and a driven gear that is engaged between the main gear and the rack gear.
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