Guide sleeve for a length-adjustable column for chairs or tables

Details Guide sleeve for a length-adjustable column for chairs or tables Guide sleeve for a length-adjustable column for chairs or tables

1995-03-17

1996-03-05

Hannon, Thomas R.

Bearings

Rotary bearing

Plain bearing

248161, 29734418, F16C 3310, A47C 300, F16M 1100

Patent

active

054961157

ABSTRACT:
A guide sleeve for a length-adjustable column for chairs is provided with an outside to be received and supported in a guide tube of the column. The guide sleeve is further provided with an internal surface, on which guide webs are formed which project towards a central longitudinal axis. The guide webs are separated from each other by recesses. On the guide webs, there are partial cylinder surfaces concentric of the axis and which are formed as guide surfaces for the housing of a length-adjustable element.

REFERENCES:
patent: 1377866 (1921-05-01), White
patent: 2348274 (1944-05-01), Aker
patent: 2539782 (1951-01-01), Kell
patent: 3711054 (1973-01-01), Bauer
patent: 3923280 (1975-12-01), Good
patent: 4899969 (1990-02-01), Bauer
patent: 4969619 (1990-11-01), Bauer et al.
patent: 4979718 (1990-12-01), Bauer et al.
patent: 5131615 (1992-07-01), Hosan et al.
patent: 5152646 (1992-10-01), Bauer

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