Eccentrically rotatable chair

Details Eccentrically rotatable chair Eccentrically rotatable chair

1982-01-15

1985-08-06

Zugel, Francis K.

Chairs and seats

Movable bottom

Interconnected with back for relative concurrent movement

297346, 248425, A47C 318

Patent

active

045331782

ABSTRACT:
An eccentrically rotatable chair comprises a base having a horizontal surface and a central support fixedly secured to the base. A horizontal arm extends from the central support and is connected with the support by a longitudinally extending anti-friction lineal bearing in the arm engaging an annular flange on the central support so that the arm can move longitudinally and can rotate about the central support but is restrained from rotation about the longtudinal axis of the arm. A seat is supported at the outer end of the arm and a ball bearing at the outer end of the arm can roll in any direction on the base. With this construction the seat can be moved toward and away from the central support and can orbit around the central support but is maintained upright by the bearing connecting the arm with the central support. In one embodiment the central support is a vertical post with two annular flanges spaced vertically from one another. The arm encloses the post and has two longitudinally extending anti-friction lineal bearings respectively engaging the two flanges of the post.

REFERENCES:
patent: 435307 (1890-08-01), Hill
patent: 1735304 (1929-11-01), Travis
patent: 2449385 (1948-09-01), Johnson et al.
patent: 2524187 (1950-10-01), Boles
patent: 2681690 (1954-06-01), Johnson et al.
patent: 3542326 (1970-11-01), Reapsummer
patent: 3708203 (1973-01-01), Barecki et al.
patent: 4400032 (1983-08-01), de Polo

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