Chairs and seats – Armrest – Adjustable to multiple use positions relative to bottom or back
Patent
1998-07-09
1999-12-07
Barfield, Anthony D.
Chairs and seats
Armrest
Adjustable to multiple use positions relative to bottom or back
297353, A47C 754
Patent
active
059970936
ABSTRACT:
A vertically adjustable, multi-position chair arm assembly includes a flat metal support bracket having a generally straight uppermost section. The chair arm assembly further includes a plastic shell housing mounted on the generally straight section of the support tube. The single piece shell housing retains a pair of mating sleeves which seat and lock in the draft angle of the shell housing. The uppermost section of the metal support bracket is enclosed by a molded plastic cover. The mating sleeves provide a channel for receiving and retaining the plastic covered section of the metal support bracket. The sleeve channel provides a plastic to plastic interface whereby the total material tolerances are significantly reduced and thereby minimizing wobble. A locking mechanism housed within the shell housing is in positive locking engagement with a punched locking rack formed in the metal support bracket.
REFERENCES:
patent: 5324096 (1994-06-01), Schultz
patent: 5435626 (1995-07-01), Lai
patent: 5586811 (1996-12-01), Tornero
patent: 5620233 (1997-04-01), Corwin
patent: 5735577 (1998-04-01), Lin
Gollin Timothy J.
Mason Dale W.
Barfield Anthony D.
Gollin & Co., Inc.
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