Chairs and seats – Back movement resiliently opposed in operating position – Back secured to resilient upright bar or rod
Patent
1983-12-21
1986-04-08
Zugel, Francis K.
Chairs and seats
Back movement resiliently opposed in operating position
Back secured to resilient upright bar or rod
297443, 297DIG2, A47C 300
Patent
active
045808368
ABSTRACT:
The seat (1) and the back (2) are identically shaped shells (12) having side supporting ribs (10, 11). With the exception of the portion intended for connection to the other part, the supporting ribs are in the form of channels (13) open at the bottom. The remaining portion is in the form of a hollow cylinder (15) having a partition (17). The connecting members (3, 4) disposed on both sides consist of bent-over spring material (30) in band form. The ends (33, 34) of the arms (31, 32) of the connecting members are integrally fastened in slots (35, 36) in cylindrical pegs (37, 38) by means of screws (39, 40). The pegs (37, 38) are produced with snug fit tolerance in relation to the hollow cylinders (14, 15). An O-ring (40, 41) is compressed by means of a screw (44, 45) between the partition (16, 17) and the peg (37, 38). This provides adequate fastening of the connecting member even when thin-walled moulded polypropylene is used for the shells (12). The chair legs (5-8) can then be fastened in the channels (13), likewise by means of a clamp device, similarly to the arrangement described for the pegs. This permits rational manufacture and stockkeeping.
REFERENCES:
patent: 2456480 (1948-12-01), Austin
patent: 2815067 (1957-12-01), Richardson
patent: 3111344 (1963-11-01), Hoven et al.
patent: 3173723 (1965-03-01), Hoven et al.
patent: 3887156 (1975-06-01), Hugonnier
patent: 4084850 (1978-04-01), Ambasz
patent: 4157203 (1979-06-01), Ambasz
patent: 4456314 (1984-06-01), Messori et al.
Intercollection Development S.A. Gyrenmoos
Zugel Francis K.
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