WO2007145170A1 - 椅子 - Google Patents
椅子 Download PDFInfo
- Publication number
- WO2007145170A1 WO2007145170A1 PCT/JP2007/061739 JP2007061739W WO2007145170A1 WO 2007145170 A1 WO2007145170 A1 WO 2007145170A1 JP 2007061739 W JP2007061739 W JP 2007061739W WO 2007145170 A1 WO2007145170 A1 WO 2007145170A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- leg
- chair
- legs
- seat
- support frame
- Prior art date
Links
Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C1/00—Chairs adapted for special purposes
- A47C1/02—Reclining or easy chairs
- A47C1/031—Reclining or easy chairs having coupled concurrently adjustable supporting parts
- A47C1/032—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C7/00—Parts, details, or accessories of chairs or stools
- A47C7/002—Chair or stool bases
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C7/00—Parts, details, or accessories of chairs or stools
- A47C7/36—Support for the head or the back
- A47C7/40—Support for the head or the back for the back
- A47C7/44—Support for the head or the back for the back with elastically-mounted back-rest or backrest-seat unit in the base frame
Definitions
- the present invention pivots a backrest to a leg body having a pair of left and right side legs so that the backrest can be tilted backward.
- the present invention relates to a chair that supports a seat body by a support base provided on a leg body.
- Patent Document 1 Japanese Patent Laid-Open No. 2002-282077
- Patent Document 2 Japanese Patent Laid-Open No. 2004-16516
- Patent Document 3 Japanese Patent Laid-Open No. 2004-33449
- Patent Document 4 Japanese Unexamined Patent Application Publication No. 2005-177180
- the left and right side legs supporting the seat body are parallel to each other in plan view and front view, and The seat body is supported between the inner side surfaces of both legs so as to be close to or in contact with each other, so that the stability of the chair in the left-right direction is slightly lacking.
- the lower limbs of the seated person may hit the front legs of the side legs.
- the leg body includes a pedestal, and the base is supported by the support base provided at the upper end of the pedestal, and the lower end of the backrest is supported.
- the lifting means When pivoting, even if the pedestal is lowered to the lower limit position by the lifting means, there is a limit to lowering the height of the support base and the seat supported by it, so you can sit in a comfortable position This is difficult when you want to get a low-sitting chair.
- the support base that supports the seat is provided at the upper end of the pedestal, even if the lower end has four to five leg rods facing the radial direction, depending on the sitting posture, the chair May become unstable.
- the present invention has been made in view of the above-mentioned problems, and aims to provide a chair with a low seat height and high stability! Speak.
- the backrest is greatly tilted backward with a small rotation angle without increasing the height of the leg or the seat. It is also possible to provide a chair with a low seat height and high stability that can be seated in a comfortable position by reducing the rearward projecting dimension when tilting backward.
- a chair that is pivotally attached to a leg that supports the seat so that a back support frame with a backrest attached to the front can be tilted behind the seat so that it can tilt backward.
- the leg body includes a pair of left and right side legs in a side view shape having a front leg inclined forward and downward and a rear leg inclined backward and downward, and a lower end of the back support frame. Is pivotally attached to an appropriate position of the leg below the seat so that it can tilt backward between the left and right side legs.
- a pair of left and right forward arms facing forward is connected to the lower end of the back support frame, and the front ends of both forward arms are connected to the side legs. Almost level with the top of the Yamagata Pivot to the leg in place.
- the leg In a chair that supports a seat by a support provided on the leg, the leg has a front leg that has a front leg that inclines forward and downward and a rear leg that inclines rearward and downward. It is composed of a pair of left and right side legs that form a shape and a connecting member facing in the left-right direction that connects the vicinity of the tops, and the support base is provided on the upper surface of the central part in the left-right direction of the connecting member.
- the connecting member is formed in a U-shape in the front view having standing pieces on both side ends of the recumbent, and a support base is provided on the upper surface of the recumbent and both standing pieces Secure the top of the top to the opposite surface of the top of the left and right side legs.
- the front part of the support base protrudes forward from the top part of the side leg, and the left and right side parts of the front end part of the seat body are formed on the right and left side parts of the front end part.
- the lower surface is pivotally attached with a pivot axis facing left and right, and the lower surfaces of both sides near the rear of the seat are pivotally attached to the left and right forward arms of the backrest support frame by the pivot axis facing left and right.
- the side leg is shaped like a side view in which the longitudinal dimension of the rear leg is longer than that of the front leg.
- casters are provided at the front end of the front leg and the rear end of the rear leg in the side leg.
- the lower end portion of the backrest support frame is between the left and right side legs in the side view mountain shape having the front legs inclined forward and downward and the rear legs inclined backward and downward.
- the legs on both sides of the leg have a mountain shape in side view with a front leg that slopes forward and downward and a rear leg that slopes backward and downward. Therefore, it is possible to provide a highly stable chair with a low seating height that can be seated in a comfortable posture.
- the left and right side legs are formed in a mountain shape when viewed from the side, the height is suppressed to be low, and the supporting base that supports the seat is located near the tops of the both side legs. Since it is provided on the upper surface of the connecting member that connects the two, the height of the base and the seat body is lower than that of a conventional chair provided with a base at the upper end of the pedestal, so that it can be seated in an easy posture A low-sitting chair can be provided.
- the support base and the seat body supported by the support base are located in the center between the left and right side legs, and the strength of the chair and the center of gravity of the entire chair are low, so that the stability of the chair when sitting is increased. .
- the seat load is supported in a balanced manner substantially near the top of the left and right side legs, that is, near the connecting part between the front and rear legs of both legs, the stability of the chair is further improved. Become.
- the connecting member has a U-shape when viewed from the front, and the reed with the supporting base is necessarily positioned below the top of the side leg. The height of the support base and the seat body supported thereby is lower.
- the front ends of the left and right forward arms of the back support frame are pivoted to the left and right sides of the support base located on the upper surface of the central portion of the connecting member and below the seat body. Worn As a result, the lower part of the back support frame is positioned between the left and right side legs, making it less noticeable and improving the appearance.
- the backrest support frame can be tilted rearward greatly without interfering with the rear legs of the left and right side legs.
- the front and rear portions of the seat body can be stably supported by the support base and the backrest support frame, and in conjunction with the backward tilt of the backrest support frame, Since it tilts backward, the sitting comfort is improved.
- the stability of the entire chair is improved, and the possibility that the lower leg portion of the seated person will hit the front leg is reduced.
- the stability when the backrest is tilted backward is further enhanced.
- the side legs are shaped like a side view, it is possible to provide a low-sitting chair with a lower leg or seat.
- the rear legs of the front leg and the front part of the rear leg are positioned below the seat body and inward from the both side ends, so that both the legs are outside the seat body.
- the chairs that make them stand out are more attractive.
- the chair can be easily transported or the like, and the position and orientation of the chair can be freely changed while sitting in the office or the like.
- FIG. 1 is a front perspective view showing one embodiment of a chair of the present invention.
- FIG. 2 It is also a front view.
- FIG. 3 is a side view of the same.
- FIG. 4 is a side view when the same backrest is tilted backward.
- FIG. 5 It is also a rear view.
- FIG. 6 is a perspective view of a leg.
- FIG. 7 is also a plan view.
- Fig. 1 is a front perspective view of the chair of the present invention
- Fig. 2 is a front view
- Fig. 3 is a side view
- Fig. 4 is a side view when the backrest is tilted backward
- Fig. 5 is a rear view.
- the chair consists of a leg (1), a seat supported by it (2), a back support frame (3) pivotally attached to the same leg (1), and a front support frame (3).
- a backrest (6) consisting of a mesh-like backrest plate (4) and a cushion body (5), and a rhombus frame in side view attached to the lower end of the backrest support frame (3) And a pair of left and right armrests (7).
- the leg body (2) has a front leg (9a) having a caster (8) at the front end and a front lower slope (9a), and a front and rear thereof.
- the front leg (9a) and the rear leg (9b) of the left and right side legs (9) are respectively expanded so as to expand outwardly in a frontal C-shape and a rear-C shape in plan view. It is bent outwards around the top of the leg to enhance the stability of the leg (1).
- each side leg (9) a short shaft part (11) facing in the left-right direction is continuously connected, and the rear leg ( A mounting piece (12) projects downward from the inner surface of the front end of 9b) (see Fig. 3).
- the head of the bolt (13) inserted into the short shaft portion (11) has a circular cap (14) (not shown in Fig. 5) fixed in the concave hole on the side surface of the short shaft portion (11). Covered by.
- the height of the upper end of the support base (15) is such that the connecting member (10) has an upward U shape, the upper end of the upright piece (10a) is at the top of the side leg (9), and By fixing (10b) to the attachment piece (12) of the rear leg (9b), the upper end of the side leg (9) protrudes slightly upward.
- the backrest support frame (3) is erected on the rear side of the seat body (2), and at the lower end, the forward arm portion (inclined obliquely rearward and upward) ( 17a) is composed of a pair of left and right side frames (17X17) and a rearward convex arcuate upper frame (18) that joins the upper ends of both side frames (17). Has a substantially vertically downward U-shape when viewed from the front and back.
- the left-right dimension between the left and right side frames (17) is smaller than the distance between the rear legs (9b) (9b) of the pair of left and right side legs (9).
- the forward arm (17a) is tilted between the left and right rear legs (9b) without interfering with it.
- an inward bent portion (17b) that is substantially coaxial with the short shaft portion (11) at the top of the side leg (9)
- the inwardly bent portion (17b) is a torsion shaft (not shown) facing in the left-right direction in a reclining mechanism such as a known rubber torsion unit provided in the support base (15).
- a reclining mechanism such as a known rubber torsion unit provided in the support base (15).
- they are connected in a state where they can rotate and are always biased counterclockwise in a side view.
- the backrest support frame (3) and the backrest (6) attached thereto tilt backward about the support base (15) when the seated person pushes the backrest (6) backward. (See Figure 4).
- FIG. 3 and FIG. On the outer end surface of the shaft-like support portion (19), which is connected to the front end of the support base (15) and whose left and right ends protrude outward from the support base (15), FIG. 3 and FIG. As shown in Fig. 1, the inner side force of the inwardly bent portion at the lower end of a pair of left and right seat support links (20X20) facing up and down is pivotally attached to the left and right pivots (2 1). ing.
- a seat support piece (22X22) projects upward from the upper surface of the front end portion of the left and right forward arms (17a) of the back support frame (3).
- (23) is a rectangular parallelepiped armrest mounting portion, and is projected from the upper surface of the forward arm portion (17a) so as to be continuous with the seat support piece (22).
- the left and right sides of the front end of the seat frame (24) attached to the lower surface of the seat (2) are pivots (25)
- the left and right sides on the rear side of the seat frame (24) are pivoted by pivots (26) pointing in the left-right direction at the upper ends of the left and right seat support pieces (22). It is pivotally attached (see Figure 3).
- the front portion of the seat body (2) is substantially connected to the front end of the support base (15) integrally formed with the leg body (1) via the pair of left and right seat support links (20).
- the middle part of the seat (2) near the rear is supported by the left and right sides, and the left and right forward arms of the back support frame (3) via a pair of left and right seat support pieces (22) Supported by (17a).
- the front and lower ends of the backrest support frame (3) are the upper center between the legs (9) and (9) of the leg (1), that is, the seat. Since it is pivotally mounted on a support base (15) that is substantially integrated with the leg (1), it is pivotally mounted on the lower side of the front of the body (2). (3) and backrest (6) The turning radius to the upper end is large, and the backrest (6) can be tilted backwards with a small rotation angle, and the rearward projecting dimensions when tilting back Get smaller.
- the legs (1) and the seat (2) can be tilted rearward without increasing their height, a low-sitting chair that can be seated in an easy posture can be provided.
- the front portions of the backrest support frame (3) and the seat body (2) are connected to the recumbent body (10a) of the connecting member (10) having a U-shape in the front view in the leg body (1). Since it is pivotally attached to the support base (15), which is provided at the same height as the top of the side leg (9), the seating height is lower and it is possible to sit in a more comfortable posture.
- the front arm (17a) of the back support frame (3) is relatively long and has a relatively long front and rear radius. And the front lower end is pivotally attached to the position where it is almost level with the top of the side leg (9) that forms a U-shape, so that the pivotable angle of the forward arm (17a) is increased. There is no risk that the trailing edge will interfere with the floor.
- pivotally attached to (15) may be pivotally attached to the tops of the left and right side legs (9), that is, the inner surface of the short shaft part (11) via an appropriate reclining mechanism.
- the seat body (2) is also tilted backward in conjunction with the tilting of the backrest support frame (3).
- the seat body (2) is simply a support base (15 ) Including leg) (1) may be fixedly provided at an appropriate position in the upper part.
Landscapes
- Health & Medical Sciences (AREA)
- Dentistry (AREA)
- General Health & Medical Sciences (AREA)
- Chairs For Special Purposes, Such As Reclining Chairs (AREA)
- Chairs Characterized By Structure (AREA)
- Chair Legs, Seat Parts, And Backrests (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/304,523 US20090195043A1 (en) | 2006-06-12 | 2007-06-11 | Chair |
CA2655276A CA2655276C (en) | 2006-06-12 | 2007-06-11 | Chair having support base |
EP07745028.6A EP2033541A4 (en) | 2006-06-12 | 2007-06-11 | SEAT |
CN2007800300540A CN101500455B (zh) | 2006-06-12 | 2007-06-11 | 椅子 |
Applications Claiming Priority (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006-162631 | 2006-06-12 | ||
JP2006162631A JP4964506B2 (ja) | 2006-06-12 | 2006-06-12 | 椅子 |
JP2006162632A JP4926551B2 (ja) | 2006-06-12 | 2006-06-12 | 椅子 |
JP2006-162632 | 2006-06-12 | ||
JP2006163383A JP4964507B2 (ja) | 2006-06-13 | 2006-06-13 | 椅子 |
JP2006-163383 | 2006-06-13 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2007145170A1 true WO2007145170A1 (ja) | 2007-12-21 |
Family
ID=38831684
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2007/061739 WO2007145170A1 (ja) | 2006-06-12 | 2007-06-11 | 椅子 |
Country Status (6)
Country | Link |
---|---|
US (1) | US20090195043A1 (ja) |
EP (1) | EP2033541A4 (ja) |
JP (1) | JP4964506B2 (ja) |
CN (1) | CN101500455B (ja) |
CA (1) | CA2655276C (ja) |
WO (1) | WO2007145170A1 (ja) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6494088B2 (ja) * | 2015-01-16 | 2019-04-03 | 株式会社オカムラ | 反力機構、及び、それを用いる椅子 |
US11672343B2 (en) | 2021-07-14 | 2023-06-13 | Anthro Form, Llc | 4-star base for a chair |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59114051U (ja) * | 1983-01-24 | 1984-08-01 | 株式会社岡村製作所 | 座と背もたれが連動して傾動する椅子 |
JP2002282077A (ja) | 2001-03-23 | 2002-10-02 | Okamura Corp | 椅 子 |
JP2004016516A (ja) | 2002-06-17 | 2004-01-22 | Matsushita Electric Works Ltd | マッサージ椅子 |
JP2004033449A (ja) | 2002-07-03 | 2004-02-05 | Kokuyo Co Ltd | 椅子のレバー取付構造 |
JP2005177180A (ja) | 2003-12-19 | 2005-07-07 | Okamura Corp | 椅子 |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1117835B (de) * | 1956-07-23 | 1961-11-23 | William H Reinholz | Bodenanker fuer Kinderlaufstuehle |
US4303219A (en) * | 1979-12-14 | 1981-12-01 | Carrick Virgil P | Swivel-rocker base |
IT1161498B (it) * | 1983-07-12 | 1987-03-18 | Castelli Spa | Sedia |
US5967609A (en) * | 1996-11-18 | 1999-10-19 | Hwe, Inc. | Reclining chair with guide rail system |
JPH10276853A (ja) * | 1997-04-02 | 1998-10-20 | Chuo Katan Kogyo Kk | スタッキング椅子 |
DE19754829A1 (de) * | 1997-12-10 | 1999-07-08 | Wilkhahn Wilkening & Hahne | Sitzmöbel |
US5868468A (en) * | 1998-04-24 | 1999-02-09 | Wang; Chin-Chen | Chair with adjustable inclination |
US6030037A (en) * | 1998-05-15 | 2000-02-29 | Steelcase Inc. | Horizontally nestable chair |
US6412869B1 (en) * | 1999-05-27 | 2002-07-02 | Steelcase Development Corporation | Nestable synchrotilt chair |
US6609755B2 (en) * | 2001-06-15 | 2003-08-26 | Hon Technology Inc. | Ergonomic chair |
US6595584B1 (en) * | 2002-01-16 | 2003-07-22 | John W. Caldwell | Seating for individuals and for groups of individuals with various degrees of accommodation and distraction |
JP2004057572A (ja) * | 2002-07-30 | 2004-02-26 | Itoki Crebio Corp | 連結可能な椅子 |
USD512846S1 (en) * | 2003-05-19 | 2005-12-20 | Hni Technologies Inc. | Mobile guest chair with arms |
USD543042S1 (en) * | 2005-11-10 | 2007-05-22 | Okamura Corporation | Chair |
USD543040S1 (en) * | 2005-11-10 | 2007-05-22 | Okamura Corporation | Chair |
USD542549S1 (en) * | 2005-11-10 | 2007-05-15 | Okamura Corporation | Chair |
-
2006
- 2006-06-12 JP JP2006162631A patent/JP4964506B2/ja active Active
-
2007
- 2007-06-11 CA CA2655276A patent/CA2655276C/en not_active Expired - Fee Related
- 2007-06-11 US US12/304,523 patent/US20090195043A1/en not_active Abandoned
- 2007-06-11 CN CN2007800300540A patent/CN101500455B/zh not_active Expired - Fee Related
- 2007-06-11 EP EP07745028.6A patent/EP2033541A4/en not_active Withdrawn
- 2007-06-11 WO PCT/JP2007/061739 patent/WO2007145170A1/ja active Search and Examination
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59114051U (ja) * | 1983-01-24 | 1984-08-01 | 株式会社岡村製作所 | 座と背もたれが連動して傾動する椅子 |
JP2002282077A (ja) | 2001-03-23 | 2002-10-02 | Okamura Corp | 椅 子 |
JP2004016516A (ja) | 2002-06-17 | 2004-01-22 | Matsushita Electric Works Ltd | マッサージ椅子 |
JP2004033449A (ja) | 2002-07-03 | 2004-02-05 | Kokuyo Co Ltd | 椅子のレバー取付構造 |
JP2005177180A (ja) | 2003-12-19 | 2005-07-07 | Okamura Corp | 椅子 |
Non-Patent Citations (1)
Title |
---|
See also references of EP2033541A4 * |
Also Published As
Publication number | Publication date |
---|---|
EP2033541A4 (en) | 2014-01-22 |
JP2007330337A (ja) | 2007-12-27 |
JP4964506B2 (ja) | 2012-07-04 |
CN101500455A (zh) | 2009-08-05 |
EP2033541A1 (en) | 2009-03-11 |
CN101500455B (zh) | 2013-05-08 |
US20090195043A1 (en) | 2009-08-06 |
CA2655276A1 (en) | 2007-12-21 |
CA2655276C (en) | 2013-01-22 |
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