MULTI-LAYERED SEAT HAVING DIFFERENT HARDNESSES AND PROVIDED WITH SKIN, AND PROCESS OF MANUFACTURING THE SAME

Title:

MULTI-LAYERED SEAT HAVING DIFFERENT HARDNESSES AND PROVIDED WITH SKIN, AND PROCESS OF MANUFACTURING THE SAME

Document Type and Number:

WIPO Patent Application WO/1998/002289

Kind Code:

A1

Abstract:

A multi-layered seat having different hardnesses and provided with a skin, having permeability, a good texture and a hardness capable of bearing the weight of a person who sits on the seat. A seat (1) is covered with a skin material (2) having permeability, and comprises a foamed body having an external shape substantially corresponding to that of the seat. The foamed body comprises a first foamed body (10), which constitutes the base of the foamed body, and a second foamed body (6), which is unitary on and with the first foamed body. The first foamed body (10) is provided at the surface thereof with projections (12, 13), which correspond to suction molded portions. A liquid foaming mixture is put in and build up on the first foamed body (10) so that it is thin on the suction molded portions and thick on the other portions. Using the first foamed body (10) and a pressure die which is disposed on the skin material above the liquid foaming mixture, has a shape of the top portion of the seat and is provided with suction ports, the mixture (15), of which the gas reaction has finished but which remains in a fluid state, is compressed, while performing suction through the suction ports, to thereby form the second foamed body (6) which is integral with the back surface of the skin material and the surface of the first foamed body and has a good texture.

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Inventors:

OGAWA TARO (JP)
SENOO YASUMASA (JP)
WATADANI TAKESHI (JP)
TODA YASUYUKI (JP)

Application Number:

PCT/JP1996/003535

Publication Date:

January 22, 1998

Filing Date:

December 03, 1996

Export Citation:

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Assignee:

NAMBA PRESS KOGYO KK (JP)
OGAWA TARO (JP)
SENOO YASUMASA (JP)
WATADANI TAKESHI (JP)
TODA YASUYUKI (JP)

International Classes:

A47C7/18; B29C39/10; B29C44/04; B29C44/56; B32B5/32; B60N2/00; B68G7/00; B29K75/00; B29L31/58; (IPC1-7): B29C39/10; B29C39/12; B29C39/24; B29C39/40; B68G5/02; A47C7/18

Foreign References:

JPS6384906A	1988-04-15
JPH02273212A	1990-11-07
JPS61144337A	1986-07-02
JPH058234A	1993-01-19
JPH07156165A	1995-06-20
JPH05131466A	1993-05-28
JPH05309744A	1993-11-22

Other References: