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US 2010/0301186 A1Published application
Adjustable support device
OwnerMin-Lon Chuanginventor
Life of this patent
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Abstract
An adjustable support device includes a support, a lift mechanism, and a pulley unit. The support includes at least two casings which are slidably connected with each other so as to adjust the length of the support. The lift mechanism includes a threaded rod screwed into a nut for changing the distance between the casings. The pulley unit is adapted for driving the casings. The present invention provides a labor-saving effect for operation.
Claims27
An adjustable support device, comprising:
- a support comprising at least a first casing and a second casing, the first casing and the second casing being slidably connected to each other;
- a lift mechanism disposed in the first casing and the second casing;
- and
- at least a pulley unit disposed in the first casing and the second casing, the pulley unit comprising at least a first pulley and at least a first transmission belt, the first pulley being connected to the lift mechanism, the first transmission belt having a first end connected to the first casing and a second end inserted through the first pulley and connected to the second cashing;
- thereby, the lift mechanism being operated to drive the first transmission belt and the first pulley, and the first casing being moved with respect to the second casing.
2 more elements
Dependencies are inferred from the claim text.