| 摘要 |
A retractable hand control system including a control unit fixedly mounted on a travel bag and coupled to a retractable handle unit in the travel bag, and a hand grip unit coupled to the retractable handle unit and controlled to move sliding tubes of the retractable handle unit in and out of the travel bag, wherein the control unit has a control knob controlled to release the hand grip unit for operation, and spring means which pushes the hand grip unit out of the travel bag for operation when the hand grip is released; the hand grip unit has a pressure bar controlled to unlock the retractable handle unit, for permitting sliding tubes of the retractable handle unit to be moved to an extended position.
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