CN101500455B - Chair - Google Patents
Chair Download PDFInfo
- Publication number
- CN101500455B CN101500455B CN2007800300540A CN200780030054A CN101500455B CN 101500455 B CN101500455 B CN 101500455B CN 2007800300540 A CN2007800300540 A CN 2007800300540A CN 200780030054 A CN200780030054 A CN 200780030054A CN 101500455 B CN101500455 B CN 101500455B
- Authority
- CN
- China
- Prior art keywords
- chair
- leg
- side leg
- supporting seat
- seat
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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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
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
A chair in which a backrest can be largely tilted rearward within a small rotation angle range without increasing the heights of a leg body and a seat body. The leg body (1) includes a pair of left and right side-legs (9) of angular shape in side view, each having a front leg (9a) tilting forward and downward and a rear leg (9b) tilting backward and downward. The lower end of a backrest support frame (3) is so pivotally mounted on the leg body (1) at an appropriate position under the seat body (2) as to be capable of tilting rearward between the left and right side-legs (9).
Description
Technical field
The present invention relates to a kind of chair, in this chair, backrest pivotally is installed on a pair of shank, and seat support is supported by the supporting seat on the side leg.
Background technology
JP2002-282077A, JP2004-16516A, JP2004-33449A and JP2005-177180A disclose this chair.
In chair in JP2002-282077A and JP2004-16516A, lower end that can sweptback backrest pivotally is installed on shank at the height that approximately equates near the rear end of seat support.The radius of gyration from pivot to the backrest upper end is restricted.
This has increased the angle of rotation when backrest recedes.For backrest is significantly tilted, must rising shank and seat support.
In JP2002-282077A, the lower end of backrest pivotally is installed on shank in the rear end of seat support.When backrest recedes, the space that chair is elongated and needs are large.
In JP2004-16516A, can significantly tilt for making backrest, backrest is run-off the straight after by bindiny mechanism's lifting.This complex structure has also increased the number of parts and annex.
In described file, the right leg and the left leg that support seat support are parallel to each other in plane and front view.Seat support is supported between shank, and near to or in contact with the inner surface of shank, this makes chair lack lateral stability simultaneously.
In JP2004-33449A and JP2005-177180A, seat support is supported by the supporting seat of shank upper end, and pivotally install the lower end of backrest.Even shank is reduced to limit inferior by lowering or hoisting gear, also can not be reduced to supporting seat or be reduced to the seat support that is supported by supporting seat.Fail to provide a kind of people can be sitting in comfortable posture wherein lower high inclination-angle chair.
The supporting seat that is used for the support seat support is arranged on the top of shank.Even at lower end edge, four or five shanks are installed radially, chair also can become not steady with people's posture.
Summary of the invention
In view of these shortcomings, the purpose of this invention is to provide a kind of chair, in this chair, shank and seat support are in low level and have large inclination angle, make chair more steady.
Another object of the present invention is to provide a kind of chair, and in this chair, backrest significantly tilts backward with little angle of rotation, and this chair has reduced rearwardly projecting distance and realized comfortable sitting posture.
Another object of the present invention is to provide a kind of chair, and in this chair, seat support is supported by the supporting seat on leg unit, and described chair comprises: a pair of outstanding side leg, described side leg comprise front leg portions and the sweptback rear shank that turns forward; Connecting elements, described connecting elements take the shape of the letter U and have vertical part at the side of cross bar, are used for connecting the top of described side leg; And the supporting seat that is positioned at the upper surface in the middle part of described connecting elements, wherein, be provided with described supporting seat on the upper surface of described cross bar, the apparent surface at the top of described side leg is fixed in the upper end of described vertical part, distance between the rear shank of described side leg becomes large gradually, and the distance between the front leg portions of described side leg becomes greatly gradually, and wherein said cross bar is arranged on the described vertical part rear of described connecting elements.
Description of drawings
Fig. 1 is the front perspective view according to chair of the present invention.
Fig. 2 is its front view.
Fig. 3 is its side view.
Fig. 4 is the side view of chair when backrest inclination.
Fig. 5 is its rearview.
Fig. 6 is the stereogram of leg unit.
Fig. 7 is its top view.
The specific embodiment
In Fig. 6 and Fig. 7, leg unit 2 comprises: a contralateral leg 9,9, each side leg comprise that front end has the front leg portions 9a of caster 8 and the rear shank 9b that the rear end has caster 8, and rear shank is longer than front leg portions 9a; And the connecting elements between the upper end of side leg 9 and 9 10.
The rear shank 9b reason longer than front leg portions 9a is to keep chair more steady when backrest 6 recedes.
It is large that the front leg portions 9a of side leg 9 and the distance between 9a become forward gradually, and the distance between rear shank 9b and 9b becomes large backward gradually, thereby make leg unit 1 more steady.
Formed minor axis 11 with the upper end of each side leg 9.In Fig. 3, installed part 12 is outstanding downwards from the inner surface of the front end of rear shank 9b.
The upper end of a pair of vertical portion 10a, the 10a of connecting elements 10 engages with minor axis 11 by bolt 13.The cross bar 10b that is arranged on 10a rear, vertical portion engages with installed part 12 by bolt 13.
The head that is arranged on the bolt 13 in minor axis 11 hides by the circular cap 14 in the sidepiece groove that is arranged on minor axis 11 (not shown in Fig. 5).
The supporting seat 15 that be used for to support seat support 2 is fixed in the protuberance 10c at the cross bar 10b middle part of connecting elements 10 in the rear end by bolt 16, make the front end of supporting seat 15 outstanding in the place ahead of cross bar 10b.
The vertical portion 10a of U-shaped connecting elements 10 is fixed in the top of side leg 9 in the upper end, and cross bar 10b is fixed in the installed part 12 of rear shank 9b, makes the upper end of supporting seat 15 a little more than the top of side leg 9.
In Fig. 3 and Fig. 5, back support frame 3 stands on the rear end of seat support, and it comprises: a pair of side frame 17,17, and each side frame 17,17 all has the arm 17a that is positioned at the lower end, the oblique rear-inclined of described arm 17a; With the arch top frame 18 that is connected described side frame 17,17 upper end.
Distance between right side frame 17 and left side frame 17 is shorter than right back shank 9b and the distance between left back shank 9b of a described contralateral leg 9.When back support frame 3 receded, arm 17a, 17a did not engage with rear shank 9b, 9b.
In Fig. 6, be formed with rounded portions 17b at the front end of each arm 17a, described rounded portions 17b is almost coaxial with the minor axis 11 at side leg 9 tops.Rounded portions 17b pivotally is connected in the torsional axis (not shown) in supporting seat 15, rubber twist cell as known in recline mechanism, and it is always all stressed in the counterclockwise direction simultaneously.Therefore, when the people who is seated promoted backrest 6 backward, back support frame 3 receded around supporting seat 15 with the backrest 6 that is installed on support frame 3.
In Fig. 3 and Fig. 6, a pair of seat support support link 20,20 pivotally is installed on by pivot 21 cylindrical support member 19 that self-supporting seat 15 is given prominence to laterally.
Seat support support member 22,22 front ends from the arm 17a of back support frame 3 project upwards.Handrail installation portion 23 and the seat support support member 22 of rectangle given prominence to the upper surface at arm 17a.
As shown in Figure 3, the chair base frame 24 that is arranged on the lower surface of seat support 2 pivotally is installed on the upper end of seat support support link 20 at front end, and pivotally is installed on the upper end of seat support support member 22 by pivot 26 in the rear end.
Therefore, the front portion of seat support 2 is supported by the supporting seat 15 that links with leg unit 1 by seat support support link 20, and the middle part of seat support 2 is supported by the arm 17a of seat support support member 22 by back support frame 3.
Therefore, in Fig. 4, when back support frame 3 and backrest 6 receded, seat support 2 receded together.After seat support 2 had been assembled, the front portion of the rear portion of front leg portions 9a and rear shank 9b was positioned at the lateral edges of seat support 2, and the side leg 9 that makes leg unit 1 is side direction outstanding (referring to Fig. 2) not.
As mentioned above, in the embodiment according to chair of the present invention, back support frame 3 pivotally is installed on the supporting seat 15 that is connected in leg unit 1 at lower front end, thereby increased the radius of gyration of 3 upper ends and backrest 6 upper ends from the pivot to the back support frame.Therefore, backrest 6 can tilt to a greater degree with little angle of rotation, and can make outstanding minimizing backward.
This chair can recede under the condition of the height that does not increase leg unit 1 and seat support 2 on a large scale, thereby a kind of comfortable low chair of the inclined that retreats that takes a seat is provided.
In said embodiment, the front end of the front end of back support frame 3 and seat support 2 is at the supporting seat 15 that pivotally is installed on the cross bar 10b of connecting elements 10.Supporting seat 15 is the same with the top of side leg 9 high, thereby has reduced taking a seat height and having improved comfort of user.
The arm 17a of back support frame 3 is relatively long, and makes progress and recede below seat support 2.Arm 17a pivotally is arranged on the position substantially contour with the top of side leg 9, thereby has increased the angle of rotation of arm 17a and avoided the rear end of arm 17a to contact with the floor.
Distance between distance between front leg portions 9a and 9a and rear shank 9b and 9b becomes large forward and backward respectively, and rear shank 9b is longer than front leg portions 9a, thereby keeps chair more steady when backrest 6 recedes.
Because the distance between front leg portions 9a and 9a becomes forward greatly, so the people's who is seated lower limb can not met front leg portions 9a.
In aforementioned embodiments, the arm 17a of back support frame 3 pivotally is installed on supporting seat 15, but also can pivotally be installed on the top of side leg or the inner surface of minor axis.
In aforementioned embodiments, seat support 2 tilts together with back support frame 3, but seat support 2 also can be fixed on the top of the leg unit that comprises supporting seat.
Claims (7)
1. chair, in this chair, seat support is supported by the supporting seat on leg unit, and described chair comprises: a pair of outstanding side leg, described side leg comprise front leg portions and the sweptback rear shank that turns forward; Connecting elements, described connecting elements take the shape of the letter U and have vertical part at the side of cross bar, are used for connecting the top of described side leg; And the supporting seat that is positioned at the upper surface in the middle part of described connecting elements,
Wherein, be provided with described supporting seat on the upper surface of described cross bar, the apparent surface at the top of described side leg is fixed in the upper end of described vertical part, and the distance between the rear shank of described side leg becomes greatly gradually, and the distance between the front leg portions of described side leg becomes greatly gradually,
Described chair is characterised in that: described cross bar is arranged on the described vertical part rear of described connecting elements.
2. chair as claimed in claim 1, wherein, described vertical part forward and extend upward makes described cross bar near the top of described side leg is positioned at described rear shank.
3. chair as described in any one in claim 1 to 2, wherein, the front end of a pair of arm of the bottom of the backed back support frame of tool pivotally is installed on the sidepiece of described supporting seat on front surface, makes described back support frame to recede.
4. chair as claimed in claim 3, wherein, the front portion of described supporting seat is outstanding forward from the top of described side leg, the right side lower surface of the front end of described seat support and left side lower surface pivotally are installed on right side and the left side of its front end by the sidepiece pivot, the lower surface of the sidepiece at the rear portion of close described seat support pivotally is installed on the arm of described back support frame by the sidepiece pivot.
5. chair as claimed in claim 1, wherein, described side leg is bending, described rear shank is than described foreleg minister simultaneously.
6. chair as claimed in claim 1, wherein, the rear portion of described front leg portions and the front portion of described rear shank are positioned at the sidepiece of described side leg below described seat support.
7. chair as claimed in claim 1 wherein, is provided with caster at the front end of the front leg portions of described side leg and the rear end of rear shank.
Applications Claiming Priority (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP162631/2006 | 2006-06-12 | ||
| JP2006162632A JP4926551B2 (en) | 2006-06-12 | 2006-06-12 | Chair |
| JP2006162631A JP4964506B2 (en) | 2006-06-12 | 2006-06-12 | Chair |
| JP162632/2006 | 2006-06-12 | ||
| JP2006163383A JP4964507B2 (en) | 2006-06-13 | 2006-06-13 | Chair |
| JP163383/2006 | 2006-06-13 | ||
| PCT/JP2007/061739 WO2007145170A1 (en) | 2006-06-12 | 2007-06-11 | Chair |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101500455A CN101500455A (en) | 2009-08-05 |
| CN101500455B true CN101500455B (en) | 2013-05-08 |
Family
ID=38831684
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007800300540A Expired - Fee Related CN101500455B (en) | 2006-06-12 | 2007-06-11 | Chair |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US20090195043A1 (en) |
| EP (1) | EP2033541A4 (en) |
| JP (1) | JP4964506B2 (en) |
| CN (1) | CN101500455B (en) |
| CA (1) | CA2655276C (en) |
| WO (1) | WO2007145170A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6494088B2 (en) * | 2015-01-16 | 2019-04-03 | 株式会社オカムラ | Reaction force mechanism and chair using the same |
| US11672343B2 (en) | 2021-07-14 | 2023-06-13 | Anthro Form, Llc | 4-star base for a chair |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5868468A (en) * | 1998-04-24 | 1999-02-09 | Wang; Chin-Chen | Chair with adjustable inclination |
| CN1514697A (en) * | 2001-06-15 | 2004-07-21 | 霍恩技术公司 | Improved ergonomic chair |
Family Cites Families (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1117835B (en) * | 1956-07-23 | 1961-11-23 | William H Reinholz | Ground anchor for children's exercise chairs |
| US4303219A (en) * | 1979-12-14 | 1981-12-01 | Carrick Virgil P | Swivel-rocker base |
| JPS59114051U (en) * | 1983-01-24 | 1984-08-01 | 株式会社岡村製作所 | A chair where the seat and backrest tilt in conjunction with each other. |
| IT1161498B (en) * | 1983-07-12 | 1987-03-18 | Castelli Spa | CHAIR |
| US5967609A (en) * | 1996-11-18 | 1999-10-19 | Hwe, Inc. | Reclining chair with guide rail system |
| JPH10276853A (en) * | 1997-04-02 | 1998-10-20 | Chuo Katan Kogyo Kk | Stacking chair |
| DE19754829A1 (en) * | 1997-12-10 | 1999-07-08 | Wilkhahn Wilkening & Hahne | Seat with backrest |
| 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 |
| JP2002282077A (en) | 2001-03-23 | 2002-10-02 | Okamura Corp | 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 |
| JP4154934B2 (en) | 2002-06-17 | 2008-09-24 | 松下電工株式会社 | Massage chair |
| JP2004033449A (en) | 2002-07-03 | 2004-02-05 | Kokuyo Co Ltd | Lever attaching structure for chair |
| JP2004057572A (en) * | 2002-07-30 | 2004-02-26 | Itoki Crebio Corp | Chair that can be connected in a row |
| USD512846S1 (en) * | 2003-05-19 | 2005-12-20 | Hni Technologies Inc. | Mobile guest chair with arms |
| JP4589621B2 (en) | 2003-12-19 | 2010-12-01 | 株式会社岡村製作所 | Chair |
| 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/en active Active
-
2007
- 2007-06-11 CA CA2655276A patent/CA2655276C/en 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/en active Search and Examination
- 2007-06-11 CN CN2007800300540A patent/CN101500455B/en not_active Expired - Fee Related
- 2007-06-11 US US12/304,523 patent/US20090195043A1/en not_active Abandoned
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5868468A (en) * | 1998-04-24 | 1999-02-09 | Wang; Chin-Chen | Chair with adjustable inclination |
| CN1514697A (en) * | 2001-06-15 | 2004-07-21 | 霍恩技术公司 | Improved ergonomic chair |
Non-Patent Citations (1)
| Title |
|---|
| JP昭和59-114051U 1984.08.01 |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2007330337A (en) | 2007-12-27 |
| US20090195043A1 (en) | 2009-08-06 |
| EP2033541A4 (en) | 2014-01-22 |
| EP2033541A1 (en) | 2009-03-11 |
| CA2655276A1 (en) | 2007-12-21 |
| WO2007145170A1 (en) | 2007-12-21 |
| JP4964506B2 (en) | 2012-07-04 |
| CN101500455A (en) | 2009-08-05 |
| CA2655276C (en) | 2013-01-22 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130508 Termination date: 20200611 |