CN208658322U - Chair back waist support linkage mechanism - Google Patents
Chair back waist support linkage mechanism Download PDFInfo
- Publication number
- CN208658322U CN208658322U CN201820212005.4U CN201820212005U CN208658322U CN 208658322 U CN208658322 U CN 208658322U CN 201820212005 U CN201820212005 U CN 201820212005U CN 208658322 U CN208658322 U CN 208658322U
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- China
- Prior art keywords
- support
- lumbar
- lumbal branch
- linkage mechanism
- pivotally connected
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Abstract
The utility model discloses a kind of chair back waist support linkage mechanism, including leaning against, Lumbar, back support and lumbal branch support, the lower end of the back support and seat are pivotally connected, the upper end of the back support is fixedly connected with described lean against, the lower end leaned against and the Lumbar are pivotally connected, the upper end of the Lumbar and lumbal branch support is pivotally connected, and the lumbal branch support is pivotally connected with the seat.The utility model chair back waist support linkage mechanism is adjusted in linkage with leaning against when in use, Lumbar support can be provided for user, structure is simple, comfort that is easy to use, effectively improving breasting.
Description
Technical field
The utility model relates to a kind of seat more particularly to a kind of chair back waist support linkage mechanisms.
Background technique
Chair is widely used by family or office space, in order to guarantee comfort that chair uses, existing office chair
It is general have lean against adjustable function, when people sit down and lean against lean against upper when, certain angle change and shape can be occurred by leaning against
Become.It is required although the back that human body in this way can be adapted to a certain extent is born against, back and waist due to human body
The reasons such as configuration, when back, which is realized, cosily to be born against, waist often generates a fixed gap between leaning against, and makes waist
It is different surely to achieve the purpose that comfortably to bear against, and when waist cannot be born against, the short time will make one to generate soreness of waist fatigue etc.
Sense of discomfort, therefore, the comfort of existing chair need further to improve.
Utility model content
It is adjusted in linkage with leaning against when in use the purpose of this utility model is to provide a kind of, provides Lumbar for user
Support, structure is simple, chair back waist support linkage mechanism that is easy to use, improving comfort.
To achieve the goals above, chair back waist support linkage mechanism provided by the utility model include lean against, Lumbar, back branch
Support and lumbal branch support, the lower end of the back support and seat are pivotally connected, and the upper end of the back support is fixedly connected with described lean against,
The lower end leaned against and the Lumbar are pivotally connected, and the upper end of the Lumbar and lumbal branch support is pivotally connected, the lumbal branch support with it is described
Seat pivot joint.
Compared with prior art, since the utility model is by being arranged a Lumbar in the lower end leaned against, make the waist
It by leaning against pivot joint with described, and supports the Lumbar and the lumbal branch and is pivotally connected, the lumbal branch support is pivotally connected with the seat, to make
It is described lean against, Lumbar, back support and lumbal branch support to form a link mechanism, therefore, when the human body back bear against it is described
It when leaning against, is deformed using the linkage of this linkage structure, so that the Lumbar protrudes from outside described lean against, thus more with human body waist
Close to a support force being provided for human body waist, to greatly improve the comfort of waist；Entire mechanism is with human body
It bears against and makes to lean against and Lumbar while deformation, adjusted without being manually operated, structure is simple, easy to use.
Preferably, the back support and/or lumbal branch support are of an L-shaped structure.
Preferably, the back support is located among the rear side of the back, the lumbal branch support is respectively arranged at the waist
The two opposite sides side leaned on.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model chair.
Fig. 2 is the state diagram of the utility model chair back waist support linkage mechanism when not in use.
Fig. 3 is the state diagram of the utility model chair back waist support linkage mechanism when in use.
Specific embodiment
For technology contents, the construction feature, the effect realized that the utility model is described in detail, below in conjunction with embodiment
And attached drawing is cooperated to be explained in detail.
As shown in Figure 1 and Figure 2, the utility model chair back waist support linkage mechanism 100 includes leaning against 1, Lumbar 2, back support 3
And lumbal branch support 4, the back support 3 and lumbal branch support 4 are of an L-shaped structure, the back support 3 is located in the rear side leaned against
Between, the lower end of the back support 3 and seat 200 are pivotally connected, and form pivoting point A, the upper end of the back support 3 is leaned against with described
1 middle part is fixedly connected, and the upper end of the lower end for leaning against 1 and the Lumbar 2 is pivotally connected, and forms pivoting point B, the Lumbar 2
Middle part and the upper end of lumbal branch support 4 are pivotally connected, and form pivoting point C, and the lumbal branch support 4 is respectively arranged at the two-phase of the Lumbar 2
Opposite side, the lower end of the lumbal branch support 4 and the seat 200 are pivotally connected, and form pivoting point D.
In conjunction with Fig. 3, when user be seated on seat 200 and back bear against it is described when leaning against 1, it is described to lean against 1 in layback
It swinging, the back support 3 rotates counterclockwise, meanwhile, 1 lower end of leaning against drives the Lumbar 2, at this moment the Lumbar 2
And lumbal branch support 4 is swung, finally, the Lumbar 2 it is whole in it is described lean against 1 front side it is prominent and be affixed on the waist of user
Portion, it is at this moment, described to lean against 1, Lumbar 2, back support 3 and lumbal branch support 4 and reach stable state between each other, it is described to lean against 1 and pass through
Back support 3 provides support force for the back of user, and the Lumbar 2 provides support force for the waist of user, to alleviate
The discomfort of waist.
Compared with prior art, since the utility model is by being arranged a Lumbar 2 in 1 lower end of leaning against, make described
Lumbar 2 leans against 1 pivot joint with described, and makes the Lumbar 2 and 4 pivot joint of lumbal branch support, the lumbal branch support 4 and the seat 200
Pivot joint, so that described lean against 4 one link mechanism of formation of 1, Lumbar 2, back support 3 and lumbal branch support, therefore, when the human body
Back bear against it is described deformed when leaning against 1 using the linkage of this linkage structure so that the Lumbar 2 protrudes from and described leans against 1
Outside, thus and human body waist closer to a support force being provided for human body waist, to greatly improve the comfort of waist；
Entire mechanism be the breasting with human body and making lean against 1 and Lumbar 2 deform simultaneously, without manual operation adjusting, structure is simple,
It is easy to use.
Above disclosed is only the preferred embodiments of the utility model, cannot limit the utility model certainly with this
Interest field, therefore equivalent variations made according to the patent scope of the utility model still falls within the utility model and covered
Range.
Claims (3)
1. a kind of chair back waist support linkage mechanism, it is characterised in that: including leaning against, Lumbar, back support and lumbal branch support, the back
The lower end of support and seat are pivotally connected, and the upper end of the back support is fixedly connected with described lean against, the lower end leaned against and institute
Lumbar pivot joint, the upper end pivot joint of the Lumbar and lumbal branch support are stated, the lumbal branch support is pivotally connected with the seat.
2. chair back waist support linkage mechanism as described in claim 1, it is characterised in that: the back support and/or the lumbal branch
Support is of an L-shaped structure.
3. chair back waist support linkage mechanism as described in claim 1, it is characterised in that: the back support is located at the back
Among rear side, the lumbal branch support is respectively arranged at the two opposite sides side of the Lumbar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820212005.4U CN208658322U (en) | 2018-02-07 | 2018-02-07 | Chair back waist support linkage mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820212005.4U CN208658322U (en) | 2018-02-07 | 2018-02-07 | Chair back waist support linkage mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208658322U true CN208658322U (en) | 2019-03-29 |
Family
ID=65820725
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820212005.4U Active CN208658322U (en) | 2018-02-07 | 2018-02-07 | Chair back waist support linkage mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208658322U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020232839A1 (en) * | 2019-03-28 | 2020-11-26 | 浙江胜途家具科技有限公司 | Seat |
-
2018
- 2018-02-07 CN CN201820212005.4U patent/CN208658322U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020232839A1 (en) * | 2019-03-28 | 2020-11-26 | 浙江胜途家具科技有限公司 | Seat |
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