Seat with a back rest and arm rest

Details Seat with a back rest and arm rest Seat with a back rest and arm rest

1980-09-26

1983-08-23

Zugel, Francis K.

Chairs and seats

Armrest

Attachable to diverse chairs or seats; i.e., portable

297115, A47C 754

Patent

active

044000332

ABSTRACT:
A seat has a back rest 2 and an arm rest 12 the inclination of the arm rest being adjustable and the arm rest being movable from an in use position to an out of use raised position.
In order to prevent the position of the arm rest being changed when the back rest inclination is changed the arm rest is attached to the seat by a parallelogram linkage. Of the four shafts of the linkage one 5 is the pivotal connection of the back rest to the seat frame, one 7 is the pivotal connection of the arm rest to the back rest, one 23 is at one end of a tie rod 13 by which the tie rod connects to the seat frame, and the last shaft is a spindle 14 connected to the other end of the tie rod.
In its position of use the arm rest is releasably attached to the spindle and is released from the spindle when moved to the out of use position.
The spindle is guided along an arcuate slot 20 in a plate 8 attached to the arm rest and pivotable about the arm rest pivot.

REFERENCES:
patent: 3261641 (1966-07-01), Black et al.
patent: 3374032 (1968-03-01), Del Giudice
patent: 3544163 (1970-12-01), Krein
patent: 3563604 (1971-02-01), Barecki

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