Chairs and seats – Bottom or back – Cushioned
Reexamination Certificate
2007-10-02
2007-10-02
Brown, Peter R. (Department: 3636)
Chairs and seats
Bottom or back
Cushioned
C297S452270, C297S452480
Reexamination Certificate
active
10477877
ABSTRACT:
A seat includes a seat frame, and a cushion material supported by the seat frame and having a three-dimensional knitted fabric which is formed by joining, with connecting threads, a pair of ground knit fabrics which are disposed so as to be separated from one another. The cushion material includes a first region whose elastic compliance when a reaction force is applied to an extending side of the cushion material when an occupant is seated on the seat is substantially equivalent to an elastic compliance of a portion of the occupant's body pressing the cushion material and a second region whose elastic compliance is larger than that of the first region. Accordingly, a thin and light seat can be provided, load concentration on the occupant's tuber ishiadicum bottom portion when seated for a long period of time can be mitigated, and vibration-transmitting characteristics can be improved.
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Microfilm of the specification and drawings annexed to the request of the Japanese Utility Model Application No. 142950/1980 ) Laid-open No. 65650/1982) (Tachikawa Spring Co., Ltd.), Apr. 19, 1982 (Apr. 19, 1982), Full text; Figs. 1 to 5. (Family: none).
Doi Shun'ichi
Fujita Etsunori
Ibaraki Katsuya
Kato Etsuko
Kawasaki Seiji
Brown Peter R.
Delta Tooling Co., Ltd.
Kabushiki Kaisha Toyota Chuo Kenkyusho
Oblon & Spivak, McClelland, Maier & Neustadt P.C.
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