| 摘要 |
PURPOSE: A pumping device for a vehicle seat cushion is provided to prevent vibration of an operating lever by generating uniform clutch force at the same position and to deliver the lever operation force to a link gear efficiently by minimizing the idling angle of the operating lever. CONSTITUTION: A pumping device for a vehicle seat cushion includes a brake unit, a clutch unit, a retainer, a lever bracket, and a return spring. The brake unit(11) is comprised of a brake bush, a brake cam, a brake roller, and a brake spring. The clutch unit(12) is comprised of a clutch bush, a clutch cam, a pair of clutch rollers, and a clutch spring. The retainer(13) has rotation projections formed at regular intervals on one side to support the clutch rollers. The lever bracket(14) has a coupling hole in the central part to be connected to a lever connector through the central part of the retainer. The return spring(15) is inserted in a receiving groove of the retainer. |
