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US 4,883,320 AGranted
Seat structure
AssigneeIkeda Bussan Co., Ltd.
InventorsSatoshi Izumida, Katsumi Kitamura
Life of this patent
Estimating the term…
Abstract
Resin-made support panels for supporting the ischium torus, lumbar and shoulder blade portions of a person seated are molded integral onto sheet-like springs which are plain-woven by resin fibers, and side rims of the sheet-like springs are connected to frames by means of hooks.
Claims7
A seat structure comprising:
- a seat frame;
- a back frame;
- sheet-like springs supported by said seat frame and by said back frame;
- support panels fixed on each sheet-like spring for supporting selected portions of a person seated on the seat structure;
- portions extending continuously from sides of each of said sheet-like springs;
- reinforcing panels connected to said seat frame and to said back frame, each of which is curved slightly upward and fixed on a border between each of said sheet-like springs and each of said extended portions;
- a strap-like rim piece fixed to an outer side of each of said extending portions;
- and
- side support frames fixed to said seat frame and said back frame and to which said rim pieces are hooked.
6 more elements
A seat structure comprising:
- a seat frame;
- a back frame;
- sheet-like springs supported by said seat frame and by said back frame;
- support panels fixed on said sheet-like springs for supporting selected portions of a person seated on the seat structure;
- portions extending continuously from both sides of each of said sheet-like springs;
- reinforcing panels connected to the seat frame, each of which is slightly curved upward and fixed on a border between said sheet-like spring and said extending portion;
- strap-like rim pieces, each fixed to the outer side of each of said extending portions;
- side support frames fixed to said seat frame and said back frame and to which said rim pieces are hooked;
- pads for covering said sheet-like springs, support panels, extending portions, reinforcing panels, strap-like rim pieces and side support frames of said seat and back frames;
- and
- surface skins provided with a wadding and serving to cover said pads.
8 more elements
Dependencies are inferred from the claim text.