CN114504209A - Comfortable waist support mechanism - Google Patents
Comfortable waist support mechanism Download PDFInfo
- Publication number
- CN114504209A CN114504209A CN202210371873.8A CN202210371873A CN114504209A CN 114504209 A CN114504209 A CN 114504209A CN 202210371873 A CN202210371873 A CN 202210371873A CN 114504209 A CN114504209 A CN 114504209A
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- compression spring
- waist
- support mechanism
- cylinder
- connecting seat
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- 230000007246 mechanism Effects 0.000 title claims abstract description 25
- 238000007906 compression Methods 0.000 claims abstract description 50
- 230000006835 compression Effects 0.000 claims abstract description 49
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000006872 improvement Effects 0.000 description 9
- 238000013016 damping Methods 0.000 description 4
- 230000003139 buffering effect Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000002040 relaxant effect Effects 0.000 description 1
- 230000035807 sensation Effects 0.000 description 1
- 239000007779 soft material Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
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- 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
- A47C7/46—Support for the head or the back for the back with special, e.g. adjustable, lumbar region support profile; "Ackerblom" profile chairs
- A47C7/462—Support for the head or the back for the back with special, e.g. adjustable, lumbar region support profile; "Ackerblom" profile chairs adjustable by mechanical means
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- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chairs Characterized By Structure (AREA)
Abstract
The utility model discloses a comfortable waist support mechanism, which comprises a chair back frame and a waist support connected to the chair back frame; the top end of the waist rest is provided with a connecting seat, and the upper part of the back surface of the connecting seat is provided with a cylinder extending in the left-right direction; the front surface of the chair back frame is provided with a slot embedded with a cylinder, and the cylinder can rotate around an axis in the slot to enable the waist rest to swing back and forth; a rear wall with a shape matched with that of the cylinder is formed at the position, corresponding to the slot, of the back surface of the chair back frame, a through groove which extends up and down and penetrates to the slot is arranged on the rear wall, and a locking structure which penetrates through the through groove and can slide on the rear wall is arranged on the cylinder; and a compression spring for supporting the lower part of the back of the connecting seat and the front of the chair back frame is arranged between the lower part of the back of the connecting seat and the front of the chair back frame. The waist buffer has the beneficial effects that the waist buffer has a buffer effect and can improve the comfort of the waist of a user.
Description
Technical Field
The utility model relates to a lumbar support mechanism, in particular to a comfortable lumbar support mechanism.
Background
At present, many office chairs are all provided with waist supports, and especially for users working in a long-term indoor, the waist supports play an important role in supporting the waist, so that the comfort level of the waist can be improved, and the burden of the lumbar can be relieved.
For example, patent application publication No. CN203692996U discloses an office chair with a waist support capable of being adjusted in a lifting manner. The vast majority of the office swivel chairs with waist supports can be adjusted front and back, but cannot be adjusted up and down, so that different consumer groups with different heights cannot be met, and the comfort level of the office chair is directly influenced. The utility model relates to an office swivel chair with a liftable waist support, which comprises a back frame and mesh connected to the back frame, wherein a waist support plate positioned behind the mesh is arranged on the back frame, and the office swivel chair is characterized in that: the waist support device is characterized in that a left waist support sliding groove and a right waist support sliding groove are respectively arranged on the left inner side wall and the right inner side wall of the back frame, and two side wings of the waist support plate are respectively slidably mounted in the left waist support sliding groove and the right waist support sliding groove. Although the waist support of the office chair can be adjusted up and down, the adjustment range is small and the waist support is fixed, so that a user can feel stiff when leaning on the waist support, and the comfort is not good.
Disclosure of Invention
The utility model aims to provide a comfortable waist support mechanism which has a buffering effect and can improve the comfort of the waist of a user.
The utility model is realized by the following technical scheme.
A comfortable lumbar support mechanism comprises a chair back frame and a lumbar support connected to the chair back frame; the top end of the waist rest is provided with a connecting seat, and the upper part of the back surface of the connecting seat is provided with a cylinder extending in the left-right direction; the front surface of the chair back frame is provided with a slot embedded with a cylinder, and the cylinder can rotate around an axis in the slot to enable the waist rest to swing back and forth; a rear wall with a shape matched with that of the cylinder is formed at the position, corresponding to the slot, of the back surface of the chair back frame, a through groove which extends up and down and penetrates to the slot is arranged on the rear wall, and a locking structure which penetrates through the through groove and can slide on the rear wall is arranged on the cylinder; and a compression spring for supporting the lower part of the back of the connecting seat and the front of the chair back frame is arranged between the lower part of the back of the connecting seat and the front of the chair back frame.
As a further improvement of the utility model, the locking structure comprises an arc-shaped pressing block attached to the rear wall, and a connecting rod which passes through the through groove and connects the arc-shaped pressing block and the cylinder; the acting force of the arc-shaped pressing block pressing on the rear wall is adjustable.
As a further improvement of the utility model, the connecting rod penetrates through the arc-shaped pressing block, and the penetrating part is sleeved with a tightening nut in threaded fit.
As a further improvement of the utility model, the chair back frame is provided with a positioning column, and the positioning column penetrates through the chair back frame from front to back and is in threaded fit with the chair back frame; the front end of the positioning column is used for supporting the rear end of the compression spring.
As a further improvement of the utility model, the front end of the positioning column is provided with an annular flange, and the rear end of the compression spring is restrained in the annular flange.
As a further improvement of the utility model, a screw cap is arranged at the rear end of the positioning column.
As a further improvement of the utility model, the connecting seat is provided with an adjusting rod, and the adjusting rod penetrates through the connecting seat in front and back and is in threaded fit with the connecting seat; the adjusting rod is positioned in the compression spring, the rear end of the adjusting rod is provided with at least one supporting structure inserted in a spring coil gap of the compression spring, and the adjusting rod can move back and forth by rotating around the axis of the adjusting rod, so that the supporting structure slides along the spring coil of the compression spring, and the length of the compression spring from the rear end to the supporting structure is limited.
As a further improvement of the utility model, the front end of the adjusting rod is provided with a knob.
As a further improvement of the utility model, the back of the connecting seat is provided with a convex column extending forwards and backwards, and the front end of the compression spring is sleeved on the convex column.
As a further improvement of the utility model, the front surface of the chair back frame is provided with a frame matched with the connecting seat, and the connecting seat is embedded in the frame.
The utility model has the beneficial effects that:
the waist support can swing back and forth by clamping and embedding the cylinder in the slot, has a buffer effect, reduces the sensation of stiffness, and can improve the comfort level of the waist of a user; the adjustment of the waist rest swinging damping is realized through the adjustability of the acting force of the arc-shaped pressing block pressing on the rear wall; the initial position and the swinging amplitude of the waist rest can be realized through the positioning column, the adjusting rod and the supporting structure; two different modes for fixing the waist rest position are provided, so that the waist rest device can be applied to different requirements; in summary, the lumbar support mechanism of the present invention improves the user's freedom of customization according to the user's preference and experience requirement.
Drawings
The preferred embodiments of the present invention will hereinafter be described in detail to facilitate understanding of the objects and advantages of the utility model, with reference to the accompanying drawings, in which:
FIG. 1 is a front view of a comfort lumbar support mechanism of the present invention;
FIG. 2 is a rear view of the comfort lumbar support mechanism of the present invention;
FIG. 3 is a side view of the comfort lumbar support mechanism of the present invention;
FIG. 4 is an enlarged partial schematic view of FIG. 2;
figure 5 is a partial cross-sectional view of the comfort lumbar support mechanism of the present invention.
Detailed Description
The utility model is explained in more detail below with reference to the drawings and exemplary embodiments.
The terms of orientation of up, down, left, right, front, back, top, bottom, and the like as referred to or as may be referred to in this specification are defined with respect to the configuration shown in the drawings, and the terms "inner" and "outer" refer to directions toward and away from the geometric center of a particular component and are relative terms, and thus may be changed accordingly depending on the position and the state of use of the particular component. Therefore, these and other directional terms should not be construed as limiting terms.
Referring to fig. 1 to 5, a comfortable lumbar support mechanism comprises a back frame 1 and a lumbar support 2, wherein the lumbar support 2 is connected to the lower part of the back frame 1.
The waist support 2 comprises a curved waist support 2 outer frame and a waist support 2 cushion layer fixed in the waist support 2 outer frame. The cushion layer of the waist support 2 is made of soft and elastic materials, such as mesh cloth, and has good toughness, ventilation, comfortable use effect and ventilation. The cushion layer of the waist support 2 is a curved surface due to the shape of the outer frame of the waist support 2, and the curved surface meets the requirement of human engineering, thereby better supporting the waist of a human body and playing the role of relaxing muscles.
The top of waist leans on 2 is connected with connecting seat 3, and connecting seat 3 presents the state for erectting basically to dodge each other in space with the 2 bed courses of waist leans on, make the waist lean on 2 bed courses of waist not can produce the foreign matter and feel. The upper part of the back surface of the connecting base 3 is provided with a cylinder 41 extending in the left-right direction, and the cylinder 41 and the connecting base 3 are integrally formed. The front of the seat back frame 1 is provided with a slot 11 extending left and right, the shape of the slot 11 is matched with that of the cylinder 41, the cylinder 41 is embedded in the slot 11, and the cylinder 41 can rotate around the axial direction of the cylinder in the slot 11 due to the shape matching, so that the waist rest 2 can swing back and forth by taking the cylinder 41 as a rotating shaft.
The back of the chair back frame 1 is provided with an inward concave groove, the bottom of the groove is a rear wall 12 corresponding to the slot 11, the shape of the rear wall 12 is matched with that of the cylinder 41, namely, the rear wall 12 is in a cylindrical shape extending from left to right and has uniform thickness. The rear wall 12 is provided with a through groove 13 extending up and down, and the through groove 13 penetrates through the through groove 13. The cylinder 41 is provided with a locking structure which passes through the through groove 13 and can slide on the back wall 12, so that the cylinder 41 on the connecting seat 3 cannot be separated from the slot 11, and the lumbar support 2 can stably and reliably swing back and forth around the cylinder 41.
A compression spring 51 is arranged between the lower part of the back face of the connecting seat 3 and the front face of the chair back frame 1, the rear end of the compression spring 51 is supported on the front face of the chair back frame 1, and the front end of the compression spring is supported on the lower part of the back face of the connecting seat 3, so that the springback reset effect is achieved.
When the waist of the user is abutted against the waist support 2, the waist support 2 is forced to swing backwards around the cylinder 41, so that the waist of the user can be continuously extended backwards, and as the waist support 2 swings backwards, the locking structure slides upwards along the circumferential direction of the back wall 12 until the locking structure cannot slide further to the top of the back wall 12, and at the moment, the position of the waist support 2 is locked. Therefore, the waist support 2 gradually increases the supporting function of the waist of the user, and plays a role of buffering, so that the stiff feeling of the waist caused by the over-jerk of the back of the user can be avoided, and the comfort level is improved.
The compression amplitude of the compression spring 51 is gradually increased in the process from the swinging of the lumbar support 2 backwards around the cylinder 41 until the swinging is stopped, and after the waist of the user leaves the lumbar support 2, the lumbar support 2 swings forwards around the cylinder 41 under the elastic force of the compression spring 51 until the position of the lumbar support is reset.
Further, the locking structure comprises an arc-shaped pressing block 42 and a connecting rod 43. The connecting rod 43 passes through the through groove 13, the front end of the connecting rod is connected to the cylinder 41, and the rear end of the connecting rod is connected to the arc-shaped pressing block 42. The arc-shaped pressing block 42 is attached to the rear wall 12 and acts as an abutment to prevent the cylinder 41 from being separated from the slot 11. The acting force of the arc-shaped pressing block 42 pressing on the back wall 12 can be adjusted, so that the friction force between the arc-shaped pressing block 42 and the back wall 12 can be adjusted, and the damping of the back-and-forth swing of the lumbar support 2 can be adjusted.
Specifically, the connecting rod 43 penetrates through the arc-shaped pressing block 42, and the penetrating part is sleeved with a tightening nut 44 in threaded fit. The user may change the amount of friction between arc stop 42 and back wall 12 by tightening adjusting nut 44 to change the force with which arc stop 42 presses against back wall 12.
Of course, the elastic force generated by the compression spring 51 during the compression process also plays a certain role in damping, but in the present application, the compression spring 51 plays a main role in driving the lumbar support 2 to return, and the damping during the swinging of the lumbar support 2 is mainly adjusted by adjusting the force of the arc-shaped pressing block 42 pressing on the back wall 12.
Of course, the user can adjust the position of the lumbar support 2 according to the preference, and then completely tighten the tightening nut 44, so that the arc-shaped pressing block 42 is locked on the rear wall 12, and the position of the lumbar support 2 is locked, and the arc-shaped pressing block 42 and the tightening nut 44 are located on the back of the seat back frame 1, so that the operation of the user is relatively convenient. It should be noted, however, that this locked state is not particularly stable, and the arc-shaped pressing piece 42 and the rear wall 12 are easily loosened for a long time to break the locked state, so that it is suitable for the user to temporarily adjust.
The circumferential length of the rear wall 12 determines the maximum pivoting range of the lumbar support 2, while the degree to which the compression spring 51 can be compressed determines the actual pivoting range of the lumbar support 2, and the position of the rear end of the compression spring 51 determines both the initial position of the lumbar support 2 and the final position of the lumbar support 2, given that the adjustable actual pivoting range is smaller than the maximum pivoting range. From the perspective of the user, the position of the rear end of the compression spring 51 can be adjusted, and the user can make customized adjustment according to the preference and experience of the user. Therefore, in the present application, the seat back frame 1 is provided with a positioning post 52 extending in the front-rear direction, the positioning post 52 penetrates the seat back frame 1 in the front-rear direction and is in threaded fit with the seat back frame 1, and the front end of the positioning post 52 is used for supporting the rear end of the compression spring 51. The rear end of the positioning column 52 extends out of the back of the backrest frame 1, so that the positioning column 52 can move back and forth by rotating the rear end of the positioning column 52, the front and rear positions of the rear end of the compression spring 51 are changed, and the initial position of the waist rest 2 is customized.
In order to facilitate the rotation of the positioning column 52 by a user, a rotary cover 521 is disposed at the rear end of the positioning column 52, and the positioning column 52 can move back and forth by rotating the rotary cover 521.
In addition, the back of the seat back frame 1 is provided with a cover plate (not shown in the figure) covering the arc-shaped pressing block 42 and the positioning column 52, the cover plate can be detachably connected to the back of the seat back frame 1, and can also be hinged to the back of the seat back frame 1, so that the arc-shaped pressing block 42 and the positioning column 52 can be protected, and the two can also be hidden to make the seat back frame 1 more attractive.
In order to prevent the rear end of the compression spring 51 from falling off the positioning post 52, the front end of the positioning post 52 is provided with an annular flange 522, and the rear end of the compression spring 51 is restrained in the annular flange 522 to play a role of limitation.
It has been described above that the degree to which the compression spring 51 can be compressed determines the actual swingable range of the lumbar support 2, and in general, the length of the compression spring 51 in the normal state determines the degree of compressibility, but if the compression spring 51 can be divided into a compressible portion and an incompressible portion, the compressible portion of the compression spring 51 is the actual length, and then determines the degree of compressibility, and further, if the length ratio between the compressible portion and the incompressible portion of the compression spring 51 can be adjusted, the actual swingable range of the lumbar support 2 can be adjusted, thereby allowing a higher degree of freedom in customization for the user.
Based on this, connecting seat 3 is equipped with the regulation pole 53 that the fore-and-aft direction extends, and the regulation pole 53 runs through connecting seat 3 around and with connecting seat 3 screw-thread fit, regulation pole 53 is located in compression spring 51, its rear end is equipped with at least one and inserts the bearing structure 54 who establishes the spring coil clearance of compression spring 51, and bearing structure 54 is the shaft-like and perpendicular to adjusts pole 53, and the bearing mechanism set up two to three can, the central angle between the adjacent bearing mechanism is the same to can improve its stability. Rotation of the adjustment lever 53 about its axis causes the adjustment lever 53 to move back and forth such that the support structure 54 slides along the coils of the compression spring 51, thereby defining the length of the portion of the compression spring 51 from the rear end to the support structure 54, which is the compressible portion, and the portion of the compression spring 51 from the support structure 54 to the front end, which is the incompressible portion.
In addition, the front end of the adjusting lever 53 is provided with a knob 531, which is convenient for the user to rotate the adjusting lever 53.
It should be noted that when the adjusting lever 53 is rotated to move backward and the supporting structure 54 at the rear end of the adjusting lever 53 abuts on the positioning post 52, the whole compression spring 51 is an incompressible part, so that the backrest is fixed in position and cannot swing back and forth. Compared with the above mode of fixing the lumbar support 2 by tightening the tightening nut 44, the fixing mode is more stable and reliable, and therefore, the fixing mode is more suitable for the requirement that a user needs to fix the lumbar support 2 for a long time. Of course, if the two fixing methods are used simultaneously, the stability of fixing the lumbar support 2 will be further improved.
In order to further improve the stability of the compression spring 51 between the connecting base 3 and the seat back frame 1, a protruding pillar 55 extending forward and backward is provided on the back surface of the connecting base 3, and the front end of the compression spring 51 is sleeved on the protruding pillar 55. The front end of the compression spring 51 is restrained in the annular flange 522, so that the stability of both ends of the compression spring 51 is kept high, and the falling-off of the compression spring 51 can be avoided.
The front of back of the chair frame 1 is equipped with the frame 14 that forms and connecting seat 3 matching, connecting seat 3 inlays and establishes in frame 14, on the one hand frame 14 can play the guard action to connecting seat 3, and on the other hand can make back of the chair frame 1 and connecting seat 3's overall structure compacter, also more pleasing to the eye.
In this embodiment, the cylinder 41, the slot 11, the arc-shaped pressing block 42, the compression spring 51, the positioning column 52 and the adjusting rod 53 are arranged in two left and right directions, so that the waist rest 2 is firmer in the left and right directions, and the situation that the left and right ends of the waist rest incline up and down can be avoided.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments can be modified, or some technical features can be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. A comfortable waist support mechanism comprises a chair back frame and a waist support connected to the chair back frame; the waist rest is characterized in that a connecting seat is arranged at the top end of the waist rest, and a cylinder extending in the left-right direction is arranged at the upper part of the back surface of the connecting seat; the front surface of the chair back frame is provided with a slot embedded with a cylinder, and the cylinder can rotate around an axis in the slot to enable the waist rest to swing back and forth; a rear wall with a shape matched with that of the cylinder is formed at the position, corresponding to the slot, of the back surface of the chair back frame, a through groove which extends up and down and penetrates to the slot is arranged on the rear wall, and a locking structure which penetrates through the through groove and can slide on the rear wall is arranged on the cylinder; and a compression spring for supporting the lower part of the back of the connecting seat and the front of the chair back frame is arranged between the lower part of the back of the connecting seat and the front of the chair back frame.
2. The comfortable lumbar support mechanism of claim 1, wherein said locking structure comprises an arcuate pressure block affixed to said back wall, a connecting rod passing through said channel and connecting said arcuate pressure block and said cylinder; the acting force of the arc-shaped pressing block pressing on the rear wall is adjustable.
3. The comfortable lumbar support mechanism according to claim 2, wherein the connecting rod penetrates through the arc-shaped pressing block, and the penetrating part is sleeved with a tightening nut in threaded fit.
4. The comfortable lumbar support mechanism according to claim 1, wherein the backrest frame is provided with positioning columns, and the positioning columns penetrate through the backrest frame in front and back and are in threaded fit with the backrest frame; the front end of the positioning column is used for supporting the rear end of the compression spring.
5. A comfort lumbar support mechanism according to claim 4, characterized in that said positioning post has an annular flange at its front end, and the rear end of said compression spring is restrained within said annular flange.
6. The comfortable lumbar support mechanism according to claim 4, wherein a screw cap is provided at the rear end of the positioning column.
7. The comfortable lumbar support mechanism according to claim 1, wherein the connecting base is provided with an adjusting rod, the adjusting rod penetrates through the connecting base from front to back and is in threaded fit with the connecting base; the adjusting rod is positioned in the compression spring, the rear end of the adjusting rod is provided with at least one supporting structure inserted in a spring coil gap of the compression spring, and the adjusting rod can move back and forth by rotating around the axis of the adjusting rod, so that the supporting structure slides along the spring coil of the compression spring, and the length of the compression spring from the rear end to the supporting structure is limited.
8. The comfortable lumbar support mechanism of claim 7 wherein said adjustment bar has a knob at the front end.
9. The comfortable lumbar support mechanism according to claim 7, wherein the back of the connecting seat is provided with a convex pillar extending back and forth, and the front end of the compression spring is sleeved on the convex pillar.
10. A comfortable lumbar support mechanism according to claim 1, wherein said front surface of said back frame is provided with a frame formed to match said connecting seat, said connecting seat being embedded in said frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210371873.8A CN114504209B (en) | 2022-04-11 | 2022-04-11 | Comfortable waist rest mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210371873.8A CN114504209B (en) | 2022-04-11 | 2022-04-11 | Comfortable waist rest mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114504209A true CN114504209A (en) | 2022-05-17 |
| CN114504209B CN114504209B (en) | 2024-04-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210371873.8A Active CN114504209B (en) | 2022-04-11 | 2022-04-11 | Comfortable waist rest mechanism |
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| Country | Link |
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| CN (1) | CN114504209B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN209073855U (en) * | 2018-08-27 | 2019-07-09 | 浙江安吉荣艺家具有限公司 | A kind of adjustable office chair of chair back-rest inclination |
| CN110200435A (en) * | 2019-04-20 | 2019-09-06 | 浙江胜途家具科技有限公司 | A kind of back structure and seat |
| CN213216127U (en) * | 2020-06-05 | 2021-05-18 | 恒林家居股份有限公司 | Seat and back of chair thereof |
| CN113331622A (en) * | 2021-05-25 | 2021-09-03 | 安吉海龙家具有限公司 | Back-leaning office chair with self-adaptive waist support |
| CN113768310A (en) * | 2021-09-24 | 2021-12-10 | 安吉伟誉家具有限公司 | High-bearing comfortable leisure chair |
| CN215686099U (en) * | 2021-04-29 | 2022-02-01 | 永艺家具股份有限公司 | Waist rest adjusting device of chair |
-
2022
- 2022-04-11 CN CN202210371873.8A patent/CN114504209B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN209073855U (en) * | 2018-08-27 | 2019-07-09 | 浙江安吉荣艺家具有限公司 | A kind of adjustable office chair of chair back-rest inclination |
| CN110200435A (en) * | 2019-04-20 | 2019-09-06 | 浙江胜途家具科技有限公司 | A kind of back structure and seat |
| CN213216127U (en) * | 2020-06-05 | 2021-05-18 | 恒林家居股份有限公司 | Seat and back of chair thereof |
| CN215686099U (en) * | 2021-04-29 | 2022-02-01 | 永艺家具股份有限公司 | Waist rest adjusting device of chair |
| CN113331622A (en) * | 2021-05-25 | 2021-09-03 | 安吉海龙家具有限公司 | Back-leaning office chair with self-adaptive waist support |
| CN113768310A (en) * | 2021-09-24 | 2021-12-10 | 安吉伟誉家具有限公司 | High-bearing comfortable leisure chair |
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| Publication number | Publication date |
|---|---|
| CN114504209B (en) | 2024-04-26 |
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