Supports – Stand – Standard type
Patent
1989-01-06
1991-05-21
Chotkowski, Karen J.
Supports
Stand
Standard type
108146, 248410, A47B 900
Patent
active
050168460
ABSTRACT:
A bedside table has a base with a vertical tube thereon, a tabletop with a vertical member slidably disposed in the tube, and a locking mechanism which can releasably lock the tube and vertical member against relative movement. The locking mechanism includes a vertical locking surface within the tube, a first positioning surface on the vertical support which faces the locking surface, second and third vertically spaced positioning surfaces facing each other at a location between the first positioning surface and the locking surface, and a plate-like locking member having a first edge portion disposed against the first positioning surface and extending away from the first positioning surface between the second and third positioning surfaces in a direction toward the locking surface, the locking member being pivotal about a horizontal axis in the region of the first positioning surface between locking and release positions in which a second edge portion thereof respectively engages and is spaced from the locking surface. A single spring can be used to both counter-balance the weight of the tabletop and vertical member and yieldably urge the locking member toward its locking position.
REFERENCES:
patent: 2495674 (1950-01-01), Lewis
patent: 3286663 (1966-11-01), Mann et al.
patent: 3380405 (1968-04-01), Barecki et al.
patent: 3588023 (1971-06-01), Cohen
patent: 3999492 (1976-12-01), Emrick
patent: 4191438 (1980-01-01), Day
patent: 4601246 (1986-07-01), Damico
patent: 4607577 (1986-08-01), Leonardo
Bissell Amfab, Inc.
Chotkowski Karen J.
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