CN114504209B - Comfortable waist rest mechanism - Google Patents
Comfortable waist rest mechanism Download PDFInfo
- Publication number
- CN114504209B CN114504209B CN202210371873.8A CN202210371873A CN114504209B CN 114504209 B CN114504209 B CN 114504209B CN 202210371873 A CN202210371873 A CN 202210371873A CN 114504209 B CN114504209 B CN 114504209B
- Authority
- CN
- China
- Prior art keywords
- back frame
- compression spring
- cylinder
- connecting seat
- rear wall
- 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.)
- Active
Links
- 230000007246 mechanism Effects 0.000 title claims abstract description 23
- 238000007906 compression Methods 0.000 claims abstract description 50
- 230000006835 compression Effects 0.000 claims abstract description 49
- 230000008093 supporting effect Effects 0.000 claims abstract description 22
- 230000000149 penetrating effect Effects 0.000 claims 1
- 230000003139 buffering effect Effects 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000006872 improvement Effects 0.000 description 9
- 230000000694 effects Effects 0.000 description 5
- 238000013016 damping Methods 0.000 description 4
- 239000004744 fabric Substances 0.000 description 3
- 230000006870 function Effects 0.000 description 2
- 241000167857 Bourreria Species 0.000 description 1
- 230000001010 compromised effect Effects 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000000034 method Methods 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
- 230000002040 relaxant effect Effects 0.000 description 1
- 230000035807 sensation Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Classifications
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chairs Characterized By Structure (AREA)
Abstract
The invention discloses a comfortable lumbar support mechanism, which 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 the axis in the slot to enable the waist rest to swing back and forth; the back of the chair back frame is provided with a rear wall which is matched with the cylinder in shape and is provided with a through groove which extends up and down and penetrates through the slot, and the cylinder is provided with a locking structure which penetrates through the through groove and can slide on the rear wall; and a compression spring for supporting the lower part of the back of the connecting seat and the front of the back frame is arranged between the lower part of the back of the connecting seat and the front of the back frame. The waist cushion has the beneficial effects of having a buffering effect and improving the comfort level of the waist of a user.
Description
Technical Field
The invention relates to a lumbar support mechanism, in particular to a comfortable lumbar support mechanism.
Background
Currently, many office chairs are provided with lumbar supports, and in particular, for users working in a long-term room, the lumbar support is very important for supporting the lumbar, so as to improve the comfort of the lumbar and reduce the burden of the lumbar.
For example, patent application publication No. CN203692996U discloses an office chair with a liftable and adjustable lumbar support. Most of the existing office swivel chairs with waist supports can be adjusted back and forth, but cannot be adjusted up and down in a lifting mode, so that consumer groups with different heights cannot be met, and comfort level of the office swivel chairs is directly affected. The utility model relates to an office swivel chair with a liftable and adjustable waist support, which comprises a back frame and a mesh cloth connected to the back frame, wherein the back frame is provided with a waist supporting plate positioned behind the mesh cloth, and is characterized in that: the left and right inner side walls of the back frame are respectively provided with a left waist support chute and a right waist support chute, and the two side wings of the waist support plate are respectively and slidably arranged in the left and right waist support chutes. The waist support of the office chair can be adjusted up and down, but has smaller adjustment range and is fixed, so that a user has a feeling of hardness when leaning on the waist support, and the comfort is poor.
Disclosure of Invention
The invention aims to solve the technical problem of providing a comfortable lumbar support mechanism which has a buffering function and can improve the comfort level of the waist of a user.
The invention is realized by the following technical scheme.
A comfortable waist rest mechanism comprises a chair back frame and a waist rest 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 the axis in the slot to enable the waist rest to swing back and forth; the back of the chair back frame is provided with a rear wall which is matched with the cylinder in shape and is provided with a through groove which extends up and down and penetrates through the slot, and the cylinder is provided with a locking structure which penetrates through the through groove and can slide on the rear wall; and a compression spring for supporting the lower part of the back of the connecting seat and the front of the back frame is arranged between the lower part of the back of the connecting seat and the front of the back frame.
As a further improvement of the present invention, the locking structure includes an arc-shaped pressing block attached to the rear wall, a connecting rod passing through the through groove and connecting the arc-shaped pressing block and the cylinder; the acting force of the arc-shaped pressing block pressed on the rear wall is adjustable.
As a further improvement of the invention, the connecting rod penetrates through the arc-shaped pressing block, and the penetrated part is sleeved with a tightening nut in threaded fit.
As a further improvement of the invention, the chair back frame is provided with a positioning column which penetrates through the chair back frame front and 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 invention, 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 invention, the rear end of the positioning column is provided with a spiral cover.
As a further improvement of the invention, the connecting seat is provided with an adjusting rod, and the front and the rear of the adjusting rod penetrate through the connecting seat and are 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 invention, the front end of the adjusting rod is provided with a knob.
As a further improvement of the invention, 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 invention, the front surface of the back frame is provided with a frame which is matched with the connecting seat, and the connecting seat is embedded in the frame.
The invention has the beneficial effects that:
The waist rest can swing back and forth through the fact that the cylinder is clamped and embedded in the slot, the waist rest has a buffering function, the sense of hardness is reduced, and the comfort level of the waist of a user can be improved; the adjustment of the swing damping of the lumbar support is realized through the adjustability of the acting force of the arc-shaped pressing block pressing on the rear wall; the initial position of the lumbar support and the swinging amplitude can be realized through the positioning column, the adjusting rod and the supporting structure; and two different modes of fixing the waist rest position are provided for application in different requirements; in summary, the lumbar support mechanism of the present invention thus improves the degree of freedom of customization of the user according to his/her own preference and experience requirements.
Drawings
Preferred embodiments of the present invention will be described in detail below with reference to the attached drawings, to facilitate understanding of the objects and advantages of the present invention, wherein:
FIG. 1 is a front view of a comfort lumbar mechanism of the present invention;
FIG. 2 is a rear view of the comfort lumbar mechanism of the present invention;
FIG. 3 is a side view of the comfort lumbar 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 a comfort lumbar mechanism of the present invention.
Detailed Description
The invention is described in further detail below with reference to the drawings and the examples.
The terms of orientation such as up, down, left, right, front, rear, front, back, top, bottom, etc. mentioned or possible in this specification are defined with respect to the configurations shown in the drawings, and the terms "inner" and "outer" refer to the relative concepts of the terms toward or away from the geometric center of a particular component, respectively, and thus may be changed accordingly depending on the location and use state of the component. These and other directional terms should not be construed as limiting terms.
Referring to fig. 1 to 5, a comfort 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 rest 2 comprises a waist rest 2 outer frame which is curved and a waist rest 2 cushion layer which is fixed in the waist rest 2 outer frame. The cushion layer of the waist rest 2 is soft and has certain elastic materials, such as mesh cloth and the like, so that the waist rest has better toughness, ventilation and comfortable and breathable use effect. The cushion layer of the lumbar support 2 is in a curved surface due to the shape of the outer frame of the lumbar support 2, and the curved surface meets the ergonomic requirement, so that the lumbar of a human body can be well supported, and the effect of relaxing muscles can be achieved.
The top end of the waist rest 2 is connected with a connecting seat 3, the connecting seat 3 basically presents a vertical state, and the connecting seat and the cushion layer of the waist rest 2 are kept away from each other in space, so that foreign body sensation can not be generated when the waist rest 2 is attached to the cushion layer of the waist rest. The upper part of the back of the connecting seat 3 is provided with a cylinder 41 extending in the left-right direction, and the cylinder 41 and the connecting seat 3 are integrally formed. The front of the chair 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 axially rotate around the cylinder 41 in the slot 11 due to the shape matching, so that the lumbar support 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 provided with 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 presents a cylinder shape extending leftwards and rightwards 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 into the through groove 13. The cylinder 41 is provided with a locking structure which penetrates through the through groove 13 and can slide on the rear wall 12, so that the cylinder 41 on the connecting seat 3 cannot be separated from the slot 11, and the waist rest 2 can swing back and forth around the cylinder 41 stably and reliably.
A compression spring 51 is arranged between the lower part of the back of the connecting seat 3 and the front of the chair back frame 1, the rear end of the compression spring 51 is supported on the front of the chair back frame 1, and the front end of the compression spring is supported on the lower part of the back of the connecting seat 3, so that the rebound and resetting effects are achieved.
When the waist of the user is abutted against the lumbar support 2, the lumbar support 2 is forced to swing backwards around the cylinder 41, so that the waist of the user can continuously extend backwards, and as the lumbar support 2 swings backwards, the locking structure slides upwards along the circumferential direction of the rear wall 12 until the waist slides to the top of the rear wall 12 and cannot slide continuously, and at the moment, the position of the lumbar support 2 is locked. Therefore, the supporting effect of the lumbar support 2 on the waist of the user is gradually increased, and the effect of buffering is achieved, so that the hard feeling of the waist caused by the too strong back of the user can be avoided, and the comfort level is improved.
The compression amplitude of the compression spring 51 is gradually increased from the time the lumbar support 2 swings backward around the cylinder 41 until the swing is stopped, and after the waist of the user leaves the lumbar support 2, the lumbar support 2 swings forward around the cylinder 41 until the position thereof is reset under the elastic force of the compression spring 51.
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 plays a role of abutting so as 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 rear wall 12 can be adjusted, so that the friction force between the arc-shaped pressing block 42 and the rear 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 penetrated part is sleeved with a tightening nut 44 in threaded fit. The user may vary the amount of friction between the arcuate pressure block 42 and the rear wall 12 by tightening the adjustment nut 44 to vary the force with which the arcuate pressure block 42 is pressed against the rear wall 12.
Of course, the elastic force generated by the compression spring 51 during the compression process also has a certain damping effect, but in the application, the compression spring 51 mainly plays a role of driving the lumbar support 2 to return, and the damping of the lumbar support 2 during swinging is mainly realized by adjusting the acting force of the arc-shaped pressing block 42 on the rear wall 12.
Of course, the user can adjust the position of the lumbar support 2 according to preference, then thoroughly screw the tightening nut 44, and the arc-shaped pressing block 42 is locked on the rear wall 12, so that the position of the lumbar support 2 is locked, and the operation of the user is relatively convenient because the arc-shaped pressing block 42 and the tightening nut 44 are positioned on the back of the back frame 1. It should be noted, however, that this locked condition is not particularly stable and that over time the arcuate pressure block 42 and rear wall 12 tend to loosen, resulting in the locked condition being compromised and thus more suitable for temporary adjustment by the user.
The circumferential length of the rear wall 12 determines the maximum swing range of the lumbar support 2, while the extent to which the compression springs 51 can be compressed determines the actual swingable range of the lumbar support 2, and the position of the rear end thereof determines both the initial position of the lumbar support 2 and the final position of the lumbar support 2 on the premise that the length of the compression springs 51 is determined, considering that the adaptable actual swingable range is smaller than the maximum swing 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 customize the adjustment according to his own preference and experience. 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 engagement 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 post 52 extends out from the back of the seat back frame 1, so that the positioning post 52 can move back and forth by rotating the rear end of the positioning post 52, and the front and back positions of the rear end of the compression spring 51 are changed, so that the initial position of the lumbar support 2 is customized.
In order to make it more convenient for the user to rotate the positioning post 52, the rear end of the positioning post 52 is provided with a screw cap 521, and the user can move the positioning post 52 back and forth by rotating the screw cap 521.
In addition, the back of the chair back frame 1 is provided with a cover plate (not shown in the figure) covering the arc-shaped pressing blocks 42 and the positioning columns 52, and the cover plate can be detachably connected to the back of the chair back frame 1 or hinged to the back of the chair back frame 1, so that the arc-shaped pressing blocks 42 and the positioning columns 52 can be protected, and the two can be hidden to make the chair back frame 1 more attractive.
In order to avoid the rear end of the compression spring 51 from falling off from 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 limiting role.
The extent to which the compression spring 51 can be compressed determines the actual swingable range of the lumbar support 2, and the length of the compression spring 51 in a normal state in general determines the compressible extent, however, 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 the compressible extent is determined, 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 enabling the customization of the user to have a higher degree of freedom.
Based on this, the connection base 3 is provided with an adjusting rod 53 extending in the front-rear direction, the adjusting rod 53 penetrates the connection base 3 from front to rear and is in threaded fit with the connection base 3, the adjusting rod 53 is located in the compression spring 51, the rear end of the adjusting rod is provided with at least one supporting structure 54 inserted into a coil gap of the compression spring 51, the supporting structure 54 is rod-shaped and is perpendicular to the adjusting rod 53, the supporting mechanisms are provided with two to three supporting mechanisms, and central angles between adjacent supporting mechanisms are the same, so that stability of the adjusting rod can be improved. Rotation of the adjustment rod 53 about its axis causes the adjustment rod 53 to move back and forth, causing the support structure 54 to slide 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, a knob 531 is provided at the front end of the adjusting lever 53, so that the user can conveniently rotate the adjusting lever 53.
It is 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 against 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. This way of fixing is more stable and reliable than the above way of fixing the lumbar support 2 by tightening the tightening nut 44, and thus better suits the needs of the user for fixing the lumbar support 2 for a long period of time. Of course, if the two fixing methods are used simultaneously, the stability of fixing the lumbar support 2 is certainly further improved.
In order to further improve the stability of the compression spring 51 between the connection seat 3 and the chair back frame 1, a convex column 55 extending back and forth is arranged on the back surface of the connection seat 3, and the front end of the compression spring 51 is sleeved on the convex column 55. The front end of the matched compression spring 51 is restrained in the annular flange 522, so that the two ends of the compression spring 51 are kept high in stability, and the compression spring 51 can be prevented from falling off.
The front of the chair back frame 1 is provided with a frame 14 matched with the connecting seat 3, the connecting seat 3 is embedded in the frame 14, on one hand, the frame 14 can play a role in protecting the connecting seat 3, and on the other hand, the whole structure of the chair back frame 1 and the connecting seat 3 is more compact and attractive.
In the present 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 all arranged in left and right directions, so that the lumbar support 2 is firmer in the left and right directions, and the situation that the left and right ends of the lumbar support incline up and down can be avoided.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme recorded in each embodiment can be modified or part of technical features in the technical scheme can be replaced equivalently; such modifications and substitutions do not depart from the spirit of the invention.
Claims (7)
1. A comfortable waist rest mechanism comprises a chair back frame and a waist rest 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 the axis in the slot to enable the waist rest to swing back and forth; the back of the chair back frame is provided with a rear wall which is matched with the cylinder in shape and is provided with a through groove which extends up and down and penetrates through the slot, and the cylinder is provided with a locking structure which penetrates through the through groove and can slide on the rear wall; a compression spring for supporting the lower part of the back of the connecting seat and the front of the back frame is arranged between the lower part of the back of the connecting seat and the front of the back frame; the locking structure can be blocked by the top of the rear wall when sliding upwards along the circumferential direction of the rear wall; the locking structure comprises an arc-shaped pressing block attached to the rear wall and a connecting rod penetrating through the through groove and connecting the arc-shaped pressing block with the cylinder; the acting force of the arc-shaped pressing block pressed on the rear wall can be adjusted; the connecting rod penetrates through the arc-shaped pressing block, and the penetrated part is sleeved with a tightening nut in threaded fit; the connecting seat is provided with an adjusting rod, and the front and the rear of the adjusting rod penetrate through the connecting seat and are 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.
2. The comfort lumbar support mechanism of claim 1 wherein the seat back frame is provided with a positioning post extending longitudinally through the seat back frame and threadably engaged with the seat back frame; the front end of the positioning column is used for supporting the rear end of the compression spring.
3. The comfort lumbar mechanism of claim 2 wherein the forward end of the positioning post has an annular flange and the rearward end of the compression spring is restrained within the annular flange.
4. The comfort lumbar support mechanism of claim 2 wherein the rear end of the positioning post is provided with a screw cap.
5. The comfort lumbar mechanism of claim 1 wherein the front end of the adjustment lever is provided with a knob.
6. The comfortable lumbar support mechanism of claim 1, wherein the back of the connecting seat is provided with a front-back extending convex column, and the front end of the compression spring is sleeved on the convex column.
7. The comfort lumbar support mechanism of claim 1 wherein the front face of the back frame is provided with a rim formed to mate with a connector, the connector being embedded within the rim.
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 CN114504209A (en) | 2022-05-17 |
| CN114504209B true CN114504209B (en) | 2024-04-26 |
Family
ID=81555089
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 |
Country Status (1)
| Country | Link |
|---|---|
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114504209A (en) | 2022-05-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10213024B2 (en) | Office, work and leisure chair and retrofit kit for a chair or a seat surface for causing subliminal movements of the person sitting thereon | |
| US4695093A (en) | Work chair | |
| US6439661B1 (en) | Chair mechanism | |
| US8272691B2 (en) | Resilient lower-back supporting device capable of vertical adjustment along with backrest of chair | |
| US6523895B1 (en) | Ergonomic chair | |
| US6585320B2 (en) | Tilt control mechanism for a tilt back chair | |
| JPH0568965B2 (en) | ||
| US10966531B2 (en) | Ergonomic chair | |
| US20060103221A1 (en) | Ergonomic chair | |
| CN113273833B (en) | Office chair with adjustable chair back | |
| US20030141751A1 (en) | Neckrest for a chair | |
| CN113331622B (en) | Office chair with self-adaptive back-leaning and overturning chair back | |
| JP2006296960A (en) | Chair having massage function | |
| CN114504209B (en) | Comfortable waist rest mechanism | |
| KR101105316B1 (en) | Chair having back of chair with variable | |
| KR20110022040A (en) | Chair with tiltable backrest | |
| CN113331620B (en) | Adjustable office chair for working on table | |
| CN115381240A (en) | Self-adaptive linkage control functional single chair | |
| KR102210240B1 (en) | Apparatus for adjusting chair backrest tilting with elasticity control | |
| CN210520531U (en) | Chair with detachable top | |
| EP1827173A1 (en) | Tilt and swivel chair and mechanism therefor | |
| CN209712181U (en) | A kind of multi-function ofice chair | |
| CN113317648B (en) | Comfortable office chair capable of being loosened | |
| CN212815353U (en) | Multifunctional adjustable seat | |
| KR101912911B1 (en) | Chair |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |