Claims
- 1. A chair fitted with an upholstery member in a portion adapted to contact a human body, wherein:an elastic member is provided which allows a deflection in a direction in which a load imposed by the human body contacting the chair works; the upholstery member is mounted over the elastic member; and an area of contact between the elastic member and the upholstery member enlarges with an increase of the load imposed on the upholstery member by the human body contacting the chair.
- 2. The chair according to claim 1, wherein the elastic member is attached in a manner to press the upholstery member toward the side adapted for contacting the human body.
- 3. The chair according to claim 1 wherein the elastic member is a leaf spring.
- 4. The chair according to claim 1, wherein the portion adapted to contact the human body is a backrest portion.
- 5. The chair according to claim 4, wherein the elastic member is attached in a manner to press the upholstery member toward the side adapted for contacting the human body.
- 6. The chair according to claim 1, wherein the elastic member has a fixed end side and a free end side.
- 7. The chair according to claim 6, wherein the portion adapted to contact the human body is a backrest portion.
- 8. The chair according to claim 6, wherein the elastic member is attached in a manner to press the upholstery member toward the side adapted for contacting the human body.
- 9. The chair according to claim 6 wherein the elastic member is a leaf spring.
- 10. The chair according to claim 6, wherein the free end side of the elastic member is curved toward the direction in which the load imposed by a sitting person works to form a curved portion, the upholstery member becomes aligned with the curved portion of the elastic member when the upholstery member is deflected.
- 11. The chair according to claim 10, wherein the elastic member is attached in a manner to press the upholstery member toward the side adapted for contacting the human body.
- 12. A chair capable of inclining an upper portion of a backrest portion rearwardly relative to a lower portion of the backrest portion, wherein:a plurality of leaf springs spaced apart from each other are provided between the upper portion and the lower portion of the backrest portion and an upholstery member covering the upper portion and lower portion of the backrest portion is provided over the leaf springs, each of the leaf springs pressing the upholstery member toward a side contacting a human body.
- 13. A chair comprising an upholstery member disposed in a portion adapted to contact a human body and a frame having a supporting face for supporting the upholstery member from the opposite side of the side contacting the human body, wherein: an attached end of the upholstery member is mounted on the supporting face of the frame, a part of the supporting face forms an escape portion which can keep the part of the supporting face away from the upholstery member, and an area of contact between the upholstery member and the frame enlarges from an attached end of the upholstery member when a load is imposed on the upholstery member to align the upholstery member with the escape portion.
- 14. The chair according to claim 13 wherein the elastic member is a leaf spring.
- 15. A chair comprising a frame, an elastic member mounted on the frame with its one end side made free and its other end side fixed and an upholstery member disposed in a portion adapted to contact a human body and placed over the elastic member; wherein an escape space is provided between the elastic member and the frame on a side allowing deflection of the elastic member, the escape space being widened from the fixed end side to the free end side of the elastic member, and an area of contact between the elastic member and the frame enlarges with increase of a load imposed on the upholstery member by the human body contacting the chair.
- 16. The chair according to claim 15, wherein the escape space is a space defined by the elastic member and a frame having a curved portion aligning with deflection of the elastic member.
- 17. The chair according to claim 15 wherein the elastic member is a leaf spring.
Priority Claims (2)
Number |
Date |
Country |
Kind |
2000-314995 |
Oct 2000 |
JP |
|
2000-315769 |
Oct 2000 |
JP |
|
CROSS REFERENCE TO RELATED APPLICATIONS
This is a U.S. National Phase Application under 35 U.S.C. §371 and applicant herewith claims the benefit of priority of PCT/JP01/08865 filed Oct. 9, 2001, which was published Under PCT Article 21(2) in Japanese, which claims priority to Japanese Application Nos. P2000-314995, filed Oct. 16, 2000 and P2000-315769, filed Oct. 16, 2000, the entire contents of which are incorporated herein by reference.
PCT Information
Filing Document |
Filing Date |
Country |
Kind |
PCT/JP01/08865 |
|
WO |
00 |
Publishing Document |
Publishing Date |
Country |
Kind |
WO02/32267 |
4/25/2002 |
WO |
A |
US Referenced Citations (16)
Foreign Referenced Citations (5)
Number |
Date |
Country |
2-257910 |
Oct 1990 |
JP |
4-357907 |
Dec 1992 |
JP |
7-184741 |
Jul 1995 |
JP |
8-24071 |
Jan 1996 |
JP |
10-155589 |
Jun 1998 |
JP |