Mechanical device for use particularly for the synchronous movem

Details Mechanical device for use particularly for the synchronous movem Mechanical device for use particularly for the synchronous movem

1993-05-19

1994-09-20

Dorner, Kenneth J.

Chairs and seats

Back movement resiliently opposed in operating position

Back adjusts independent of seat

297300, A47C 300

Patent

active

053483715

ABSTRACT:
A mechanical device connectable to the upper end of a central column extending from a chair base for the synchronous movement and locking of the seat and backrest of a chair. The device includes a first bracket connected to the column. A second bracket for connection to the seat is pivotally connected to the first bracket by a first axis. A third bracket for connection to the backrest is pivotally connected to the second bracket. A third axis is connected to the first bracket and extends through slots in the third bracket for limiting the rotation thereof. A fourth axis is connected to the second bracket and is connected to the third axis by a plurality of slotted disks. The third axis is operative to selectively lock the disks in a stationary position to prevent pivotal movement of the second and third brackets.

REFERENCES:
patent: 4629249 (1986-12-01), Yamaguchi
patent: 4743065 (1988-05-01), Meiller et al.
patent: 4747640 (1988-05-01), Locher
patent: 4986601 (1991-01-01), Inoue

Affiliated with

Also associated with

Rating

Mechanical device for use particularly for the synchronous movem does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Mechanical device for use particularly for the synchronous movem, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Mechanical device for use particularly for the synchronous movem will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2429308