公开(公告)号：US5881980A

公开(公告)日：1999-03-16

申请号：US884403

申请日：1997-06-27

Applicant: Edward C. Knudson

Inventor： Edward C. Knudson

IPC: A47B9/00 ,  A47B9/20 ,  A47B91/02

CPC classification number: A47B91/02 ,  A47B9/00 ,  A47B9/20 ,  Y10T16/201 ,  Y10T16/202 ,  Y10T16/209 ,  Y10T16/21 ,  Y10T403/32311

Abstract: An adjustable leg assembly comprises an outer tube and an inner tube subassembly. The inner tube assembly comprises an inner tube, a floor support at one end of the inner tube, an expandable bushing at an opposite end of the inner tube, a rod extending through the inner tube and secured to the bushing and threadedly engaged with the floor support. The inner tube subassembly is inserted into the outer tube such that the bushing is confined within the outer tube and can be expanded into and retracted from contact with the outer tube by turning the floor support relative to the inner tube. In the preferred embodiment illustrated in the drawings, the floor support is a glide/tightener that provides a floor glide to support the leg assembly and that provides a tightener that is threadedly engaged with the bushing rod.

Abstract translation: 可调腿组件包括外管和内管子组件。 内管组件包括内管，位于内管一端的底板支撑件，位于内管相对端的可膨胀衬套，延伸穿过内管并固定到衬套并与地板螺纹接合的杆 支持。 内管子组件插入到外管中，使得衬套被限制在外管内，并且可以通过相对于内管转动地板支撑件而将其扩展到与外管接触和缩回。 在附图所示的优选实施例中，地面支撑件是滑动/紧固器，其提供地板滑动以支撑腿部组件，并且提供与衬套杆螺纹接合的紧固器。