Adjustable lift support apparatus
AssigneeQisda Corporation
InventorTing-Hui Chih
Life of this patent
Estimating the term…
Abstract
An adjustable lift support apparatus includes a holder, a base, a first fixed shaft, a support, a second fixed shaft, and a transmission shaft. The first fixed shaft is connected to the base and the holder, and a first gear is mounted thereon. The second fixed shaft is connected to the support and the holder, and a fourth gear is mounted thereon. The transmission shaft is rotatably mounted on the holder, and a second gear is mounted thereon meshing with the first gear and a third gear is mounted thereon meshing with the fourth gear. The support is lifted or lowered by a force to make the second gear rotate with respect to the first gear which is fixed and the third gear rotate with respect to the fourth gear, so as to adjust the height of the support and maintain an included angle between the support and the base.
Claims9
An adjustable lift support apparatus, comprising:
- a holder;
- a base;
- first fixed shaft having a first end and a second end, the first fixed shaft being attached onto the base via the first end and attached onto the holder via the second end, the first fixed shaft further having a first gear mounted near the second end;
- a transmission shaft having a third end and a fourth end, the transmission shaft being rotatably mounted on the holder and having a second gear mounted near the third end, the second gear meshing with the first gear;
- a support mounted onto the holder and near the fourth end of the transmission shaft;
- and
- a resilient member having a seventh end and an eighth end, the resilient member being attached onto the holder via the seventh end and attached onto the transmission shaft via the eighth end, for assisting in lifting or lowering the support together with the holder,
- wherein lifting or lowering of the support together with the holder is actuated by applying an external force on the support or the holder to make the second gear rotate with respect to the first gear, so as to adjust the height of the support corresponding to the base.
Dependencies are inferred from the claim text.