CN208769219U - A kind of adaptive chair back - Google Patents
A kind of adaptive chair back Download PDFInfo
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- CN208769219U CN208769219U CN201721725437.7U CN201721725437U CN208769219U CN 208769219 U CN208769219 U CN 208769219U CN 201721725437 U CN201721725437 U CN 201721725437U CN 208769219 U CN208769219 U CN 208769219U
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Abstract
The utility model belongs to field of furniture, a kind of adaptive chair back, including seat back frame and support frame are disclosed, the seat back frame is at least connect there are two tie point with support frame, cylindrical rubber parts is equipped at tie point, rubber parts both ends are contacted with seat back frame and support frame respectively.By the setting of rubber parts, variation can be generated therewith by making one the seat back frame when leaning on backward, and when people carries out movement all around when rear lean on, seat back frame can generate variation therewith.
Description
Technical field
The utility model relates to field of furniture more particularly to a kind of adaptive chair back.
Background technique
Existing seat back frame and support frame are directly fixed, and comfort is not high, human body chair back during leaning on backward
Variation cannot be generated therewith.Human body backward by during will receive the reaction force of the chair back, cannot come spread apart well.
Summary of the invention
In view of the above-mentioned deficiencies in the prior art, variation can be generated with human action to the utility model by providing one kind
The chair back uses the chair back not only can more be allowed to act with human body left and right directions to act on front-rear direction.
The utility model realizes that technical solution used by its technical purpose is:
A kind of adaptive chair back, including seat back frame and support frame, at least there are two tie points and branch for the seat back frame
Support connects, and cylindrical rubber parts is equipped at tie point, rubber parts both ends are contacted with seat back frame and support frame respectively.
Specifically, described rubber parts one end is fixed, and deformation occurs when external force triggers for the other end.
Preferably, being equipped with nut inside the rubber parts, the seat back frame is equipped with frame mounting hole, the chair back
It is fixed between frame and rubber parts by screw and the nut in rubber parts.
Preferably, the seat back frame is equipped with the first groove for accommodating rubber parts front end, first groove
The first positioning protrusion is inside formed, the rubber parts front end offers the first locating slot matched with the first positioning protrusion.
Preferably, a mounting portion is extended in the rubber parts rear end, the mounting portion is equipped with flange, the mounting portion
On be arranged with installation part, the installation part fixes flange pressure on the support frame and with support frame.
Preferably, being set on the installation part there are two mounting hole, support frame as described above is equipped with one for accommodating rubber parts
Second groove of rear end, the second groove lower section form mounting post corresponding with the mounting hole of installation part, the installation part
It is fixed by screw and support frame.
Preferably, second groove is equipped with a flange collar, the mounting portion and flange of the rubber parts be equipped with it is convex
Enclose corresponding third groove；The flange collar upper and lower ends are additionally provided with the second positioning protrusion, and the installation part is equipped with to be determined with second
Corresponding second locating slot of position protrusion.
When installation, installation part is sleeved on the mounting portion of rubber parts, and third groove corresponds to flange collar, and installation part rear end is set with
In flange collar, the second locating slot of installation part is opposite with the second positioning protrusion on support frame, and flange is depressed into the second groove-bottom
Face, then connect installation part with mounting post by screw.The setting of second locating slot and the second positioning protrusion is easily installed part
Installation positioning.
Preferably, the mounting portion and flange are equipped with a flat recess being easily installed.Installation part is sleeved on rubber parts
Mounting portion on.
Preferably, the rubber parts is two, it is separately positioned at left and right sides of seat back frame top, the seat back frame
Lower part is relatively fixed with support frame.
Preferably, the seat back frame is fixed by a mounting blocks with support frame.
Preferably, support frame as described above be Y shape, the secondary support being connect respectively with seat back frame two sides including two and with
The main support of seat back frame lower part connection.
Preferably, the secondary support and main support of support frame as described above are equipped with the groove for mitigating weight.
Preferably, support frame as described above is equipped with a Lumbar regulating mechanism, the Lumbar regulating mechanism includes
Mounting base, the mounting base are fixedly installed on support frame, and the mounting base is equipped with the first mounting groove；
Including first support and the returning face plate of first support rear end is arranged in turnover bracket, and the returning face plate setting exists
In first mounting groove, one end in returning face plate upper and lower ends is rotated around the first mounting groove, the first support front end and Lumbar
Connection；
Adjusting block, adjusting block are arranged in the first mounting groove, and the rotation of turnover bracket is adjusted by sliding up and down adjusting block
Gyration makes Lumbar can be realized front and back and adjusts；
Cover board is installed, the installation cover board is covered on the outside of returning face plate and is fixedly connected with mounting base, and described first
Frame passes through installation cover board.
Further, the returning face plate and mounting base are rotatablely connected.
Preferably, being equipped with a groove close to the first installation groove location in mounting base, correspondence is set on the returning face plate
There is a crook, the crook is in groove.
Preferably, glide direction of the width of groove along adjusting block, the width of groove is greater than the width of crook.Make to turn over
Rotating plate can successfully be rotated.
Preferably, the returning face plate lower part is equipped with the first protrusion, the installation cover board is equipped with and the first male cooperation
The first mounting portion；First mounting portion is equipped with an arc groove, and the first protrusion is in arc groove always.Play limit
Effect is fixed on returning face plate in the first mounting groove.
Preferably, adjusting block has wider part and narrower part along glide direction, one is formed between wider part and narrower part
A inclined-plane opposite with returning face plate medial surface；Adjusting block is in close to the rotation fulcrum position of returning face plate, when rotating returning face plate,
Returning face plate is far from adjusting block one end close to the bottom surface of the first mounting groove, and the inside of returning face plate is affixed with inclined-plane；At adjusting block
In the rotation fulcrum position far from returning face plate, the wider part of returning face plate and adjusting block offsets, and returning face plate is in the lock state.Locking
Adjusting block offsets with returning face plate when state rotate returning face plate can not, can only keep the state to offset with adjusting block.It is unlocked
When determining state, close to the rotation fulcrum of returning face plate, returning face plate can rotate adjusting block in the first mounting groove.
Preferably, returning face plate offsets far from rotation fulcrum position with cover board when being in the lock state.
Preferably, forming an inclined-plane opposite with returning face plate medial surface between wider part and narrower part is cambered surface.
Further, the bottom surface of first mounting groove is equipped with the retention bead of an elasticity, the adjusting block and first
The contact surface of installation groove bottom is equipped with the limiting groove matched with retention bead.It is adjusted to adjusting block far from returning face plate
When rotation fulcrum position, it is able to maintain motionless in the position.
Preferably, the installation cover board upper end is set there are two the buckle for fixed installation, installation cover board lower end is equipped with
Two mounting holes；Set in the mounting base there are two with the card slot that is clasped.
Preferably, the installation cover board is equipped with one and can accommodate the holding tank of first support rotation.
Preferably, regulation handle is extended in two sides to the adjusting block to the left and right.The left and right sides is adjusted simultaneously, guarantees to adjust
Block can control parallel when adjusting.
Preferably, the Lumbar and first support front end are rotatablely connected.
The beneficial effects of the utility model are:
By the setting of rubber parts, variation can be generated therewith by making one the seat back frame when leaning on backward, and people is when rear lean on
When carrying out movement all around, seat back frame can generate variation therewith.
Support frame as described above is Y shape, is set on support frame as described above there are two the tie point that connect with seat back frame, is set on tie point
The cylindrical rubber part one end set is fixed, and deformation occurs when external force triggers for the other end.Specifically, the rubber parts front end is logical
It crosses the cooperation with screw to be fixed on seat back frame, rear end is existed the rear end spiral-lock of rubber parts by way of mounting portion and flange
In second groove of support frame, and mounting portion is corresponding with flange collar with the third groove on flange, so that mounting portion and flange are pacified
Piece installing is securely seated between on support frame.
For people when unfolding backward, Lumbar withstands the waist of people, and back retreats, seat back frame stress, and rubber parts front end is protected
Constant, rear end generation deformation is held, as the movement of human body generates variation.
The setting of Lumbar regulating mechanism makes that Lumbar can be carried out according to human body requirements using the seat of the chair back of the utility model
Adjusting.For people when office, Lumbar is adjusted to front, offsets with the waist of human body, to the lumbar support of people, alleviates human body and does
Discomfort when public.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of adaptive one angle of the chair back of the utility model.
Fig. 2,3 are the adaptive back structure explosive views of the utility model.
Fig. 4 is the partial enlarged view of A in Fig. 3.
Fig. 5 is the partial structure diagram of the utility model seat back frame, rubber parts and installation part.
Fig. 6 is the structural schematic diagram of adaptive another angle of the chair back of the utility model.
Fig. 7 is the partial enlarged view of B in Fig. 6；
Fig. 8 is the structural schematic diagram of the utility model Lumbar regulating mechanism；
Fig. 9 is the schematic diagram of internal structure of the utility model Lumbar regulating mechanism；
Figure 10 is the enlarged drawing in the portion C in Fig. 9；
Figure 11 is the explosive view of the utility model Lumbar one angle of regulating mechanism；
Figure 12 is the explosive view of another angle of the utility model Lumbar regulating mechanism；
Figure 13 is the enlarged drawing in the portion D in Figure 12.
Description of symbols:
1, seat back frame；11, the first mounting hole；12, the first groove；13, the first positioning protrusion；
2, cover board is installed；21, the first mounting portion；211, arc groove；22, it buckles；23, mounting hole；24, holding tank；
3, turnover bracket；31, first support；32, returning face plate；321, crook；322, the first protrusion；
4, adjusting block；41, cambered surface；42, limiting groove；43, regulation handle；
5, mounting base；51, the first mounting groove；52, groove；53, retention bead；54, card slot.
6, support frame；61, the second groove；62, mounting post；63, flange collar；
7, rubber parts；71, the first locating slot；72, mounting portion；73, flange；75, flat recess；76, third groove；
8, installation part；81, the second mounting hole；82, the second locating slot；
9, mounting blocks；
10, Lumbar.
Specific embodiment
The technical solution of the utility model is described in further detail below by specific embodiment and in conjunction with attached drawing.This
Utility model description as described in orientation is undefined in the normal use state of seat.
As shown in figs. 1-7, a kind of adaptive chair back, including seat back frame 1 and support frame 6, support frame as described above 2 are Y shape, packet
Include the secondary support and the main support connecting with 1 lower part of seat back frame that two connect with 1 two sides of seat back frame respectively, the secondary branch
Frame top is set there are two the tie point that connect with seat back frame 1, equipped with cylindrical rubber parts 7 at the tie point.
As shown in Fig. 2, the rubber parts 7 is columned.
Nut is equipped with inside the rubber parts 7, the seat back frame 1 is equipped with the first mounting hole 11, the seat back frame 1
It is fixed between rubber parts 7 by screw and the nut in rubber parts 7.The fixation of the rubber parts 7 not necessarily uses above-mentioned knot
Structure, one can also be set in rubber parts 7 screw of the part body of rod (having threaded portion) outside rubber parts 7, in the first installation
It is equipped with nut at hole 11, then fixes rubber parts 7 and the cooperation of seat back frame 1.
As shown in Figure 3,4, the seat back frame 1 is equipped with the first groove 12 for accommodating 7 front end of rubber parts, and described the
Form the first positioning protrusion 13 in one groove 12,7 front end of rubber parts is offered to be matched with the first positioning protrusion 13
First locating slot 71.7 front end of rubber parts is fixedly mounted in the first groove 12.
As shown in figure 4, a mounting portion 72 is extended in 7 rear end of rubber parts, the mounting portion 72 is equipped with flange 73, institute
It states and is arranged with installation part 8 on mounting portion 72, set on the installation part 8 there are two the second mounting hole 81, support frame as described above 6 is equipped with
One, for accommodating the second groove 61 of 7 rear end of rubber parts, forms the second installation with installation part 8 below second groove 61
The corresponding mounting post 62 in hole 81, second groove 61 are equipped with a flange collar 63, the mounting portion 72 and flange 73 of the rubber parts 7
It is equipped with third groove 76 corresponding with flange collar 63；It is (not shown that 63 upper and lower ends of flange collar are additionally provided with the second positioning protrusion
Out), the installation part 8 is equipped with the second locating slot 82 corresponding with the second positioning protrusion.On the mounting portion 72 and flange 73
The flat recess 75 being easily installed equipped with one.
When installation, installation part 8 is sleeved on the mounting portion 72 of rubber parts 7, the corresponding flange collar 63 of third groove 76, by installation part
8 rear end caps are in flange collar 63, and the second locating slot 82 of installation part 8 is opposite with the second positioning protrusion on support frame 6, by flange
73 are depressed into 61 bottom surface of the second groove, then are connect installation part 8 with mounting post 62 by screw.
As long as above-mentioned mounting structure guarantees that one end is fixed, the other end between rubber parts 7 and seat back frame 1, support frame 6
It can deformation occurs in the outer masterpiece used time.The fixed form of the i.e. described rubber parts can also be anti-come, 7 rear end of rubber parts is set
There is nut, mounting portion 72. is extended in front end
The seat back frame 1 is fixed by a mounting blocks 9 and support frame 6.Between the seat back frame 1 and support frame 6
It can be connected by rubber parts 7 as above.
The secondary support and main support of support frame as described above 6 are equipped with the groove for mitigating weight.
As shown in Figure 1, support frame as described above 6 is equipped with a Lumbar regulating mechanism.As shown in figures 8-13, the Lumbar 10 is adjusted
Mechanism includes Lumbar 10, support frame 6, further includes mounting base 5, and the mounting base 5 is fixedly installed on support frame 6, the mounting base 5
It is equipped with the first mounting groove 51；
Including first support 31 and the returning face plate 32 of 31 rear end of first support, the returning face plate is arranged in turnover bracket 3
32 are arranged in the first mounting groove 51, and 32 lower end of returning face plate is rotated around the first mounting groove 51,31 front end of first support and waist
By 10 rotation connections；
Adjusting block 4, the adjusting block 4 are arranged between returning face plate 32 and the first mounting groove 51, are adjusted by sliding up and down
Block 4 makes Lumbar 10 can be realized front and back and adjusts to adjust the rotation angle of turnover bracket 3；
Cover board 2 is installed, the installation cover board 2 is covered on the outside of returning face plate 32 and is fixedly connected with mounting base 5, the peace
Capping plate 2 is equipped with a holding tank 24 for being pierced by and moving up and down for first support 31.
Specifically, as shown in Figure 10, a groove 52, the overturning are equipped with below first mounting groove 51 in mounting base 5
A crook 321 is correspondingly provided on plate 32, the crook 321 is in groove 52；Width along adjusting block 4 glide direction,
The width of groove 52 is greater than the width of crook 321.32 lower part of returning face plate is equipped with the first protrusion 322, sets on the installation cover board 2
There is the first mounting portion 21 with 322 cooperation of the first protrusion；First mounting portion 21 is equipped with an arc groove 211, the first protrusion
322 are in always in arc groove 211.
As shown in Figure 10, adjusting block 4 has wider part and narrower part along glide direction, is formed between wider part and narrower part
One inclined-plane 41 opposite with 32 medial surface of returning face plate.The face can may be other inclined-planes for cambered surface, and the purpose is to be turned over
There are enough activity spaces when rotating plate 32 is close to 51 bottom surface of the first mounting groove.As shown in Figure 10, the adjusting in the present embodiment
Block is using cambered surface.
The bottom surface of first mounting groove 51 is equipped with the retention bead 53 of an elasticity, the adjusting block 4 and the first installation
The contact surface of 51 bottom surface of slot is equipped with the limiting groove 42 matched with retention bead 53.The retention bead 53 and mounting base 5
It is integrally formed.What the mounting base 5 can be plastic material is also possible to metal material.Specifically, first mounting groove 51
Upper end middle position is equipped with a groove for accommodating retention bead 53, and the retention bead 53 is arranged in groove, the limit
Protrusion 53 is inverted L shape, including horizontal part and rake, the horizontal part are extended by mounting base 5, the rake
Lower end turns forward, and lower end is equipped with a protrusion cooperated with limiting groove 42.
Adjusting block 4 is in close to the rotation fulcrum position (i.e. the lower section of the first mounting groove 51) of returning face plate 32, by external force
Effect, returning face plate 32 rotate, and 32 upper end of returning face plate is close to the bottom surface of the first mounting groove 51, and the inside of returning face plate 32 and cambered surface
41 are affixed；Adjusting block 4 is in the rotation fulcrum position (i.e. the top of the first mounting groove 51) far from returning face plate 32, adjusting block 4
The retention bead 53 of 51 bottom surface of limiting groove 42 and the first mounting groove cooperates, and adjusting block is made to be fixed on the upper of the first mounting groove 51
Side, 32 inside of returning face plate and the wider part of adjusting block 4 offset at this time, and 32 upper end of returning face plate offsets with cover board, and returning face plate is conditioned
Block fixation is in the lock state.
For the adjusting convenient for adjusting block 4, regulation handle 43 is extended in two sides to the adjusting block 4 to the left and right.
In addition to this rotation angle of the returning face plate 32 can also be realized by spring mechanism, when using the mechanism, then
Adjusting block is not needed.Between returning face plate 32 and installation cover board 2, installation cover board 2 is equipped with to be turned over for blocking for the spring setting
The salient point of rotating plate 32, Lumbar 10 are at front position, the spring-compressed, and returning face plate 32 is mounted the salient point card on cover board 2
It is firmly motionless.When the needs of Lumbar 10 are adjusted at rear position, for convenient for manipulation, 32 two sides of returning face plate also can be extended out adjusting
Handle presses forward regulation handle, and returning face plate 32 is flicked, at this time returning face plate 32 can after topple over and 51 bottom surface phase of the first mounting groove
It supports, realizes moving back for Lumbar 10.In addition to this setting that the first mounting groove 51 of inclination also can be used carries out the rotation of returning face plate 32
Angular adjustment, i.e., described first mounting groove, 51 vertical direction are tilted backwards by supreme up and down, the rear end and first of the adjusting block 4
Mounting groove 51 inclined surface cooperation can be moved up and down along the inclined surface of the first mounting groove 51, the front end face of the adjusting block 4 with it is upper
Be right angle between end face, when adjusting block 4 at the bottom when, returning face plate offsets with adjusting block 4, and Lumbar 10 is in front position, when
When adjusting block 4 moves up, returning face plate is tilted backwards by external force, and returning face plate 32 drives first support 31, first support 31
Lumbar 10 is driven, Lumbar 10 is adjusted in rear position.Alternative scheme as described above has very much, but its final purpose
All it is that returning face plate 32 is made to rotate, i.e., the front-rear position of 11 front end of first support occurs
Variation, to adjust the front-rear position of Lumbar 10.
It is described installation 2 upper end of cover board set there are two for fixed installation buckle 22, installation 2 lower end of cover board set there are two peace
Fill hole 23；The card slot 54 cooperated there are two being set in the mounting base 5 with buckle 22.The installation cover board is fixed by above structure
In mounting base.
The Lumbar regulating mechanism can also realize the rotation of returning face plate 32 by other embodiment, such as: returning face plate 32
Upper end is rotated around the first mounting groove 51, i.e., the top of the first mounting groove 51 in mounting base 5 is arranged in the described groove 52.
Claims (16)
1. a kind of adaptive chair back, which is characterized in that including seat back frame and support frame, at least there are two connect the seat back frame
Contact is connect with support frame, at tie point be equipped with cylindrical rubber parts, rubber parts both ends respectively with seat back frame and support bridge joint
Touching；Described rubber parts one end is fixed, and deformation occurs when external force triggers for the other end.
2. the adaptive chair back according to claim 1, which is characterized in that be equipped with nut, the chair inside the rubber parts
Back frame frame is equipped with the first mounting hole, is fixed between the seat back frame and rubber parts by screw and the nut in rubber parts.
3. the adaptive chair back according to claim 2, which is characterized in that the seat back frame is equipped with for accommodating rubber
First groove of part front end, the first positioning protrusion is formed in first groove, and the rubber parts front end offers and first
The first locating slot that positioning protrusion matches.
4. the adaptive chair back according to claim 1, which is characterized in that a mounting portion is extended in the rubber parts rear end,
The mounting portion is equipped with flange, is arranged with installation part on the mounting portion, the installation part by flange pressure on the support frame simultaneously
It is fixed with support frame.
5. the adaptive chair back according to claim 4, which is characterized in that the second installation there are two being set on the installation part
Hole, support frame as described above are equipped with one for accommodating the second groove of rubber parts rear end, form and pacify below second groove
The corresponding mounting post of the second mounting hole of piece installing, the installation part are fixed by screw and support frame.
6. the adaptive chair back according to claim 5, which is characterized in that second groove is equipped with a flange collar, described
The mounting portion and flange of rubber parts are equipped with third groove corresponding with flange collar；The flange collar upper and lower ends are additionally provided with the second positioning
Protrusion, the installation part are equipped with the second locating slot corresponding with the second positioning protrusion.
7. the adaptive chair back according to claim 4, which is characterized in that the mounting portion and flange are equipped with one convenient for peace
The flat recess of dress.
8. the adaptive chair back according to claim 1, which is characterized in that the rubber parts is two, is separately positioned on chair
It carries on the back at left and right sides of framework upper, the seat back frame lower part and support frame are relatively fixed.
9. the adaptive chair back according to claim 8, which is characterized in that the seat back frame passes through a mounting blocks and support
Frame is fixed.
10. the adaptive chair back according to claim 1, which is characterized in that support frame as described above is Y shape, including two difference
The secondary support being connect with seat back frame two sides and the main support being connect with seat back frame lower part.
11. the adaptive chair back according to claim 10, which is characterized in that on the secondary support and main support of support frame as described above
Equipped with the groove for mitigating weight.
12. the adaptive chair back according to claim 1, which is characterized in that support frame as described above is equipped with a Lumbar and adjusts machine
Structure, the Lumbar regulating mechanism include:
Mounting base, the mounting base are fixedly installed on support frame, and the mounting base is equipped with the first mounting groove；
Including first support and the returning face plate of first support rear end is arranged in turnover bracket, and the returning face plate is arranged first
In mounting groove, one end in returning face plate upper and lower ends is rotated around the first mounting groove, and the first support front end is connect with Lumbar；
Adjusting block, adjusting block are arranged in the first mounting groove, and the rotation angle of turnover bracket is adjusted by sliding up and down adjusting block
Degree makes Lumbar can be realized front and back and adjusts；
Cover board is installed, the installation cover board is covered on the outside of returning face plate and is fixedly connected with mounting base, and the first support is worn
Cross installation cover board.
13. the adaptive chair back according to claim 12, which is characterized in that the returning face plate and mounting base are rotatablely connected；
It is equipped with a groove close to the first installation groove location in mounting base, is correspondingly provided with a crook, the hook on the returning face plate
Shape portion is in groove.
14. the adaptive chair back according to claim 12, which is characterized in that the returning face plate lower part is equipped with the first protrusion,
The installation cover board is equipped with the first mounting portion with the first male cooperation；First mounting portion is equipped with an arc groove, the
One protrusion is in arc groove always.
15. the adaptive chair back according to claim 12, which is characterized in that adjusting block along glide direction have wider part with
Narrower part forms an inclined-plane opposite with returning face plate medial surface between wider part and narrower part；Adjusting block is in close to overturning
The rotation fulcrum position of plate, when rotating returning face plate, returning face plate far from adjusting block one end close to the bottom surface of the first mounting groove, and
The inside of returning face plate is affixed with inclined-plane；Adjusting block is in the rotation fulcrum position far from returning face plate, returning face plate and adjusting block compared with
Wide portion offsets, and returning face plate is in the lock state.
16. the adaptive chair back according to claim 12, which is characterized in that the bottom surface of first mounting groove is equipped with one
The retention bead of elasticity, the adjusting block are equipped with the limit matched with retention bead with the contact surface of the first installation groove bottom
Groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721725437.7U CN208769219U (en) | 2017-12-12 | 2017-12-12 | A kind of adaptive chair back |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721725437.7U CN208769219U (en) | 2017-12-12 | 2017-12-12 | A kind of adaptive chair back |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208769219U true CN208769219U (en) | 2019-04-23 |
Family
ID=66142906
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721725437.7U Active CN208769219U (en) | 2017-12-12 | 2017-12-12 | A kind of adaptive chair back |
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| Country | Link |
|---|---|
| CN (1) | CN208769219U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109907569A (en) * | 2017-12-12 | 2019-06-21 | 永艺家具股份有限公司 | A kind of adaptive chair back |
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2017
- 2017-12-12 CN CN201721725437.7U patent/CN208769219U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109907569A (en) * | 2017-12-12 | 2019-06-21 | 永艺家具股份有限公司 | A kind of adaptive chair back |
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