Armrest device for chair

Details Armrest device for chair Armrest device for chair

1998-10-20

1999-08-31

Barfield, Anthony D.

Chairs and seats

Armrest

Movable to nonuse position

29741138, 29741137, A47C 754

Patent

active

059443863

ABSTRACT:
An attaching cylinder 6 is disposed on an armrest main body 5. A main shaft 3 is disposed uprightly on an upper end of a support 2 and rotatably combined with the attaching cylinder 6 inside the attaching cylinder 6. A guiding portion 8A is disposed on an upper end of the main shaft 3 which protrudes from an upper end of the attaching cylinder 6. A guiding surface 8a is disposed on the guiding portion 8A along a circle formed with the main shaft 3 as a center. A supporting piece rotation-urged toward the guiding surface at a distal end portion thereof and attached rotatably to the armrest main body around the longitudinal axis at a proximal end portion thereof. A roller 14 is disposed on a distal end portion of the supporting piece and rolls on the guiding surface 8a. Receiving recess portions 11A, 11B, 11C, 11D, 11E, 11F, disposed at suitable locations of the guiding surface 8, with which the roller 14 is engaged or disengaged.

REFERENCES:
patent: 4429918 (1984-02-01), Alsup, Jr. et al.
patent: 4452387 (1984-06-01), Plowman
patent: 5599067 (1997-02-01), Schulke et al.
patent: 5641203 (1997-06-01), Van De Riet et al.
patent: 5655814 (1997-08-01), Gibbs
patent: 5749628 (1998-05-01), Snyder et al.

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