Chairs and seats – Back movement resiliently opposed in operating position – Spring centers back on pivot
Patent
1991-07-09
1992-05-12
Brown, Peter R.
Chairs and seats
Back movement resiliently opposed in operating position
Spring centers back on pivot
297306, A47C 1024
Patent
active
051121085
ABSTRACT:
A seating furniture includes a frame having a backrest mounting portion; a seat disposed on the frame; and a backrest disposed adjacent the backrest mounting portion. The backrest includes upper and lower backrest parts extending respectively above and below the backrest mounting portion. The furniture further has a connecting member which attaches the backrest to the backrest mounting portion and which includes a leaf spring secured to the backrest mounting portion and the backrest. The leaf spring positions the backrest in a predetermined angular orientation and resiliently resists an angular displacement of the backrest from the predetermined angular orientation.
REFERENCES:
patent: 293813 (1884-02-01), St. John
patent: 478131 (1892-07-01), Richards et al.
patent: 647178 (1900-04-01), Chechester
patent: 653105 (1900-07-01), MacLeay
patent: 5018791 (1991-05-01), Zapf
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