CN101874688A - Seating device - Google Patents
Seating device Download PDFInfo
- Publication number
- CN101874688A CN101874688A CN2009100432697A CN200910043269A CN101874688A CN 101874688 A CN101874688 A CN 101874688A CN 2009100432697 A CN2009100432697 A CN 2009100432697A CN 200910043269 A CN200910043269 A CN 200910043269A CN 101874688 A CN101874688 A CN 101874688A
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- China
- Prior art keywords
- backrest
- movable back
- assembly
- seat cushion
- free end
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- 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.)
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- Chair Legs, Seat Parts, And Backrests (AREA)
Abstract
The invention discloses a seating device for solving the problem that the conventional seating device cannot provide effective support for human waist and back at any sitting posture. The seating device comprises a backrest assembly, a seat cushion assembly and a backrest adjusting mechanism; the seat cushion assembly comprises a seat cushion framework and a seat cushion; the backrest assembly comprises a backrest framework and a backrest, wherein the backrest comprises an upper backrest and a lower movable backrest, the upper backrest is arranged on the backrest framework, and the lower movable backrest has at least one free end which is not restrained by all parts (except the lower movable backrest) of the backrest assembly and all parts of the seat cushion assembly and can move relative to the upper backrest; the backrest adjusting mechanism comprises a supporting element and a driving element, one end of the supporting element supports the lower movable backrest, while the other end is connected with the driving element; and during use, the driving element drives the supporting element, and the free end of the lower movable backrest moves relative to the upper backrest so that both the waist and the back can be effectively supported at any sitting posture.
Description
Technical field:
The present invention relates to a kind of tool, refer in particular to a kind of when people's seat tool that the small of the back can both effectively be supported when taking any sitting posture.
Background technology:
No matter existing seat tool is seat or sofa, and its backrest is an integral body basically, is suitable for a certain specific sitting posture.As office seating, when people taked straight sitting posture, its backrest can support human waist and back effectively, but when people take to lie fallow sitting posture (human buttock moves forward with respect to seat), waist and following position be unsettled, can not get supporting, and the people that makes of a specified duration has a pain in the back, and causes LB easily; And some sofa has projection at waist, and when people taked to lie fallow sitting posture, its backrest can support human waist and back effectively, but when people take straight sitting posture, but can not provide the comfortable support effect.
Summary of the invention:
The technical problem to be solved in the present invention is: an existing seat tool is an integral body because of its backrest, and the problem of effective support can not all can be provided to human waist and back when sitting posture arbitrarily.
Technical scheme of the present invention is described below:
The present invention is an a kind of tool, and it comprises cushion assembly, backrest assembly and backrest guiding mechanism.
Cushion assembly comprises seat cushion framework and seat cushion, and seat cushion is installed on the seat cushion framework.
The backrest assembly comprises backrest skeleton and backrest, and backrest is made up of last backrest and following movable back, and last backrest is packed on the backrest skeleton; Following movable back is connecting the backrest skeleton by hinge or other part, and following movable back has upper and lower two ends, wherein at least one end for be not subjected to the constraint of backrest assembly and cushion assembly, can be with respect to the free end of last back movement.
Following movable back has multiple different version with the connecting relation of backrest skeleton, can will descend the upper end and the backrest skeleton hinge-coupled of movable back, this at present the lower end of movable back be free end; Also can between following movable back and backrest skeleton, connect with connecting rod, this at present the upper and lower end of movable back be free end.Different structures needs different backrest guiding mechanisms.
Last backrest and seat cushion adopt the sponge kind foamed material.Following movable back adopts the structure of underframe outsourcing foam, and underframe can adopt iron and steel, hardwood or plastic material, and following movable back connects by its underframe and backrest skeleton or backrest guiding mechanism, for sake of convenience, is referred to as its underframe and foam with " following movable back ".
In the inside of last backrest, following movable back, can set up miscellaneous function, as electrical heating, electric massage etc.
Backrest skeleton and seat cushion framework are linked together, and in furniture seat or sofa, both are fixedly connected; In automotive seat, available recliner is linked together backrest skeleton and seat cushion framework, the part that the seat cushion carriage of automotive seat and lowering or hoisting gear are regarded seat cushion framework as.
The backrest guiding mechanism comprises supporting member and driving element, supporting member one end is supporting movable back, and the other end is connecting driving element, according to the connected mode of supporting member with following movable back, multiple guiding mechanism is arranged, in different embodiment, describe in detail.
The hand-drive of can choosing of backrest guiding mechanism also can be used motor-driven.
When use is of the present invention, with staff or electric power, make driving element drive supporting member, the free end that makes down movable back is with respect to last back movement, and following movable back changes with respect to the position of last backrest, reaches the support effect that needed by human body is wanted.
The present invention compared with prior art has a significant effect: when the people need take different sitting postures, as long as regulate free end that the backrest guiding mechanism makes down movable back with respect to last back movement suitable position extremely, make human waist and back can obtain effective support, prevent the LB that causes because of sitting.
Description of drawings:
Fig. 1 is the schematic diagram of embodiment 1.
Fig. 2, Fig. 3 are the schematic diagram of embodiment 2, and wherein Fig. 3 looks schematic diagram for the right side of Fig. 2.
The specific embodiment:
The present invention has numerous embodiments, below in conjunction with accompanying drawing several exemplary embodiment is described.
Fig. 1 is the schematic diagram of embodiment 1.
In Fig. 1,1 is seat cushion framework, and 2 is seat cushion, and seat cushion 2 is packed on the seat cushion framework 1, and 1 and 2 constitute cushion assembly.
In Fig. 1,3,4,5 constitute the backrest assemblies, and wherein 3 is the backrest skeleton, and 4 is last backrest, and 5 are following movable back, and 4 and 5 have formed backrest.Last backrest 4 is packed on the backrest skeleton 3, and following movable back 5 has last free end 51 and following free end 52.Following movable back 5 connecting rod 6 hinges of position and backrest guiding mechanism therebetween connects, last free end 51 and following free end 52 are not subjected to all parts (following movable back 5 self except) of backrest assembly and the constraint of all parts of cushion assembly (1,2), and can move with respect to last backrest 4.
In Fig. 1,6,7,8,9,10,11 have constituted the backrest guiding mechanism, and wherein 6 is connecting rod, and 7 is pole, and 6 and 7 form supporting member; One end hinge-coupled of connecting rod 6 also is supported on down the middle part of movable back 5, and the other end is connecting steel wire rope 82; Pole 7 one ends and backrest skeleton 3 hinge-coupled, the other end and connecting rod 6 hinge-coupled.8,9,10,11 form driving element, and wherein 8 is traction cable, and drag-line is a kind of assembly commonly used on machinery and the automobile, and it comprises flexible pipe 81, steel wire rope 82,83,84 is two ends of flexible pipe 81.9 is nut sleeve, and 10 is screw rod, and 11 is handwheel.
During use, drive steel wire rope 82 motions with handwheel 11 drive screws 10, thereby drive link 6 and pole 7 motions make down movable back 5 with respect to last backrest 4 motions, the last free end 51 of following movable back 5 and following free end 52 are also with respect to last backrest 4 motions.
Fig. 2, Fig. 3 are the schematic diagram of embodiment 2, and wherein Fig. 3 looks schematic diagram for the right side of Fig. 2.
In Fig. 2,21 is seat cushion framework, and 22 is seat cushion, and seat cushion 22 is packed on the seat cushion framework 21, and 21 and 22 constitute cushion assembly.
In Fig. 2,23,24,25,26,30 have constituted the backrest assembly, and wherein 23 is the backrest skeleton, and 24 is last backrest, and 25 are following movable back, and 26 is elastic force cloth.Last backrest 24 is packed on the backrest skeleton 23.Following movable back 25 has last hinged end 251 and following free end 252, and last hinged end 251 connects with backrest skeleton 23 usefulness hinges 30.Elastic force cloth 26 will descend the following free end 252 of movable back 25 to be connected with backrest skeleton 23, so that free end 252 does not have tangible visual slit between free end 252 and the seat cushion 22 around hinge 30 rotation at present away from original position instantly; Because of elastic force cloth 26 scalable, following free end 252 is not subjected to the constraint of elastic force cloth 26, so down free end 252 is not subjected to the constraint of all parts (21,22) of all parts (following movable back 25 self except) of backrest assembly and cushion assembly, and can be with respect to last backrest 24 motions.
In Fig. 2, also can will descend movable back 25 to be connected with seat cushion 22 with elastic force cloth 26 with last backrest 24.
In Fig. 2,27,28,29 have constituted the backrest guiding mechanism, and wherein 27 is cam, and 28 is the cam limited block, and 29 is hand wheel.Cam 27 is formed driving element with hand wheel 29, and cam 27 is formed supporting member with cam limited block 28.Cam 27 is supported on down between the last hinged end 251 and following free end 252 of movable back 25.
Fig. 3 looks schematic diagram for the right side of Fig. 2.In Fig. 3, following movable back 25 is arranged in the cavity that backrest 24 and seat cushion 22 forms, following movable back 25 be connected with elastic force cloth 26 between the part on every side.
During use, with 27 motions of hand wheel 29 driving cams, movable back 25 is with respect to last backrest 24 motions down thereby drive, and the following free end 252 of following movable back 25 is with respect to last backrest 24 motions, and elastic force cloth 26 is stretched simultaneously.
In above-mentioned " specific embodiment ", several typical embodiment have been described; According to descending the different of the mounting means of backrest on whole seat and guiding mechanism, numerous embodiments can also be arranged, do not give unnecessary details one by one herein.No matter be used for furniture seat tool or seat, no matter which kind of embodiment, most important characteristic of the present invention is that its backrest comprises backrest and following movable back, and that following movable back has is that all parts of at least one all part that are not subjected to the backrest assembly (except the following movable back self) and cushion assembly retrain, can be with respect to the free end of last back movement.When the people need take different sitting postures, as long as the free end that makes down movable back by the backrest guiding mechanism makes human waist and back can both obtain effective support any appearance with respect to last back movement suitable position extremely.
Claims (4)
1. seat tool, it comprises backrest assembly, cushion assembly and backrest guiding mechanism, the backrest assembly comprises backrest and backrest skeleton, cushion assembly comprises seat cushion framework and seat cushion, it is characterized in that backrest comprises backrest and following movable back, that following movable back has is that all parts of at least one all part that are not subjected to the backrest assembly (except the following movable back self) and cushion assembly retrain, can be with respect to the free end of last back movement.
2. seat tool according to claim 1 is characterized in that movable back has last free end and following free end down, and the link supports of guiding mechanism is in the middle part of following movable back.
3. seat tool according to claim 1 is characterized in that movable back has one to go up hinged end and a following free end down, and last hinged end is connected with the backrest skeleton.
4. seat tool according to claim 1 is characterized in that following movable back and is connected with elastic force cloth between the part on every side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100432697A CN101874688A (en) | 2009-04-30 | 2009-04-30 | Seating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100432697A CN101874688A (en) | 2009-04-30 | 2009-04-30 | Seating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101874688A true CN101874688A (en) | 2010-11-03 |
Family
ID=43017451
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009100432697A Pending CN101874688A (en) | 2009-04-30 | 2009-04-30 | Seating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101874688A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104223827A (en) * | 2014-09-22 | 2014-12-24 | 安吉县聚源家具有限公司 | Durable bar chair |
| CN107199929A (en) * | 2017-05-25 | 2017-09-26 | 东风江森汽车座椅有限公司 | The motor vehicle seat back of detachable waist support |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2317732Y (en) * | 1997-11-27 | 1999-05-12 | 宿福刚 | Two-use chair for rest and work |
| JP2001299499A (en) * | 2000-04-25 | 2001-10-30 | Takano Co Ltd | Backrest structure of chair |
| CN1488307A (en) * | 2002-09-06 | 2004-04-14 | 普罗-科德有限公司 | Back of Chair |
| JP3553301B2 (en) * | 1996-12-24 | 2004-08-11 | 株式会社イトーキクレビオ | Support structure for backrest in chair |
| CN1663503A (en) * | 2005-01-27 | 2005-09-07 | 吴文进 | Waist region adjustable chair |
| CN1794932A (en) * | 2003-05-23 | 2006-06-28 | 曼普拉斯有限公司 | Chair with automatci regulated back |
| US20060138821A1 (en) * | 2004-12-27 | 2006-06-29 | Oasyschair Co., Ltd. | Chair backrest |
| JP2007325689A (en) * | 2006-06-07 | 2007-12-20 | Quali:Kk | Backrest structure of chair |
| CN201086648Y (en) * | 2007-03-16 | 2008-07-16 | 格拉默股份公司 | Passenger seat used for vehicle |
| CN201564021U (en) * | 2009-04-30 | 2010-09-01 | 杨诚 | Seat |
-
2009
- 2009-04-30 CN CN2009100432697A patent/CN101874688A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3553301B2 (en) * | 1996-12-24 | 2004-08-11 | 株式会社イトーキクレビオ | Support structure for backrest in chair |
| CN2317732Y (en) * | 1997-11-27 | 1999-05-12 | 宿福刚 | Two-use chair for rest and work |
| JP2001299499A (en) * | 2000-04-25 | 2001-10-30 | Takano Co Ltd | Backrest structure of chair |
| CN1488307A (en) * | 2002-09-06 | 2004-04-14 | 普罗-科德有限公司 | Back of Chair |
| CN1794932A (en) * | 2003-05-23 | 2006-06-28 | 曼普拉斯有限公司 | Chair with automatci regulated back |
| US20060138821A1 (en) * | 2004-12-27 | 2006-06-29 | Oasyschair Co., Ltd. | Chair backrest |
| CN1663503A (en) * | 2005-01-27 | 2005-09-07 | 吴文进 | Waist region adjustable chair |
| JP2007325689A (en) * | 2006-06-07 | 2007-12-20 | Quali:Kk | Backrest structure of chair |
| CN201086648Y (en) * | 2007-03-16 | 2008-07-16 | 格拉默股份公司 | Passenger seat used for vehicle |
| CN201564021U (en) * | 2009-04-30 | 2010-09-01 | 杨诚 | Seat |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104223827A (en) * | 2014-09-22 | 2014-12-24 | 安吉县聚源家具有限公司 | Durable bar chair |
| CN107199929A (en) * | 2017-05-25 | 2017-09-26 | 东风江森汽车座椅有限公司 | The motor vehicle seat back of detachable waist support |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20101103 |