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Patent Searching and Data


Title:
SITTING TOOL AND CHAIR
Document Type and Number:
WIPO Patent Application WO/2013/061552
Kind Code:
A1
Abstract:
Provided are a sitting tool and a chair that naturally improve the sitting posture of a seated person, making comfortable sitting possible. This sitting tool (1) is provided with a seat board (3). The seat board (3) is provided with a first sitting surface (21) and a second sitting surface (22) that is continuous with the first sitting surface (21) and extends towards the front of the sitting tool. The second sitting surface (22) is formed to have a different level, which is higher than the first sitting surface (21), by the first sitting surface side end face (221). When the buttocks of the seated person is supported by the first sitting surface (21) and the upper part of the thighs of the seated person is supported by the second sitting surface (22), the level difference restricts the ischium of the seated person to move forward. The first sitting surface (21) extends across the entire width of the seat board (3) in the left—right direction of the sitting tool without being obstructed by any level differences.

Inventors:
MASUI, Yoshimitsu (Misato Haitsu B1, 22-13 Okubo 2-chome, Shinjuku-k, Tokyo 72, 〒1690072, JP)
Application Number:
JP2012/006686
Publication Date:
May 02, 2013
Filing Date:
October 18, 2012
Export Citation:
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Assignee:
MASUI, Yoshimitsu (Misato Haitsu B1, 22-13 Okubo 2-chome, Shinjuku-k, Tokyo 72, 〒1690072, JP)
桝井 祥光 (〒72 東京都新宿区大久保2-22-13 見里ハイツB1 Tokyo, 〒1690072, JP)
International Classes:
A47C27/00; A47C7/02
Foreign References:
JP2004073713A2004-03-11
JPH11309047A1999-11-09
JPH09504443A1997-05-06
JPS59111566U1984-07-27
JP3089959U2002-11-22
JPH11253267A1999-09-21
JP2003070844A2003-03-11
JPH08502914A1996-04-02
JP2000253946A2000-09-19
JPS6253614A1987-03-09
JPH1057178A1998-03-03
Other References:
See also references of EP 2769645A4
Attorney, Agent or Firm:
SUGIMURA, Kenji (36F Kasumigaseki Common Gate West, 3-2-1 Kasumigaseki, Chiyoda-k, Tokyo 13, 〒1000013, JP)
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Claims: