Frame member

Details Frame member Frame member

1991-08-21

1993-09-14

Chin-Shue, Alvin C.

Supports

Stand

Understructure

2481881, F16M 1100

Patent

active

052441741

ABSTRACT:
A frame member, as is used for office and other furniture, such as desks, chairs and other components, is formed from a length of rigid tubing, of polygonal cross-section, and bent on a diagonal. The tube is bent by bending around an arcuate bending member having a peripheral groove which is a cross-section corresponding to about half the cross-section of the tube. The tube is gripped against the periphery of the arcuate bending member, by a gripping member, the bending member and gripping member moving about an axis to bend the tube. The tube is held in contact with the arcuate bending member by an elongate bending member which is slidingly supported on a fixed base and moves with the tube over the fixed base as bending progresses. The tube is supported against collapse by a stationary internal non-deformable member.

REFERENCES:
patent: 3885766 (1975-05-01), Resch et al.
patent: 4105250 (1978-08-01), Caldwell
patent: 4128176 (1978-12-01), Green
patent: 4169625 (1979-10-01), Petersen
patent: 4700915 (1987-10-01), Killian
patent: 4722503 (1988-02-01), Monahan

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