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US 2019/0032691 A1Published application
Telescopic Module
AssigneesYi-Chen Tseng, Hi-Max Innovation Co., Ltd.
InventorJHIH-FAN LIN
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Abstract
A telescopic module, which may be incorporated in a desk or a chair to elevate or lower a worksurface, includes a first tube, second tube, and a plurality of rollers. The first tube has a passageway, in which the second tube is received for reciprocation. The rollers are pivoted on the second tube or the first tube, or both to touch an inner side of the first tube and an outer side of the second tube to be turned when the second tube is moving. The rollers may reduce the friction between the first and the second tubes when the second tube is moving.
Claims10
A telescopic module, comprising:
- a first tube having a passageway therein;
- a second tube received in the passageway of the first tube for reciprocation;
- and
- a roller between the first tube and the second tube for free turning, wherein the roller touches at least one of an inner side of the first tube and an outer side of the second tube to be turned when the second tube is moving.
1 more element
Dependencies are inferred from the claim text.