Rotatable and vertically adjustable single-column presentation s

Details Rotatable and vertically adjustable single-column presentation s Rotatable and vertically adjustable single-column presentation s

1985-10-28

1987-02-24

Britts, Ramon S.

Supports: racks

Knockdown

Foldable or collapsible

211166, 211208, 297349, 248408, 108141, A47F 502

Patent

active

046450815

ABSTRACT:
The extension column (3) which is telescopically adjustable inside a vertical tube (2) and is optionally rotatable relative to the vertical tube (2) is supported on the latter by a radial and axial pivot bearing arrangement (11, 14) and a height-fixing device comprising a housing (16) and a coupling element (15) preferably in the form of a slide (15) which is supported on a bearing ring (14) which in turn sits on the bearing surface (13) of a support flange (11) supported by the vertical tube (2). The height-fixing slide (15) is mounted in a slide housing (16), which surrounds the bearing ring (14) and the support flange (11), and is against the restoring force of a return spring (27) transferable from a coupled position on the extension column (3) into a release position in which the extension column (3) is freely movable vertically.

REFERENCES:
patent: 2293144 (1942-08-01), Jones
patent: 2652272 (1953-09-01), Wood
patent: 3862735 (1975-01-01), Cohen

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