CN109008377B - Chair back frame - Google Patents
Chair back frame Download PDFInfo
- Publication number
- CN109008377B CN109008377B CN201810864170.2A CN201810864170A CN109008377B CN 109008377 B CN109008377 B CN 109008377B CN 201810864170 A CN201810864170 A CN 201810864170A CN 109008377 B CN109008377 B CN 109008377B
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- Prior art keywords
- convex
- frame body
- rectangular frame
- holes
- grooves
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- 239000000463 material Substances 0.000 claims abstract description 5
- 230000003014 reinforcing effect Effects 0.000 claims description 47
- 230000006837 decompression Effects 0.000 claims description 12
- 230000002787 reinforcement Effects 0.000 claims 3
- 238000013461 design Methods 0.000 abstract description 8
- 230000008093 supporting effect Effects 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 5
- 239000004744 fabric Substances 0.000 description 3
- 230000005489 elastic deformation Effects 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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
-
- 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
-
- 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
- A47C7/42—Support for the head or the back for the back of detachable or loose type
- A47C7/425—Supplementary back-rests to be positioned on a back-rest or the like
-
- 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
- A47C7/44—Support for the head or the back for the back with elastically-mounted back-rest or backrest-seat unit in the base frame
Landscapes
- Chair Legs, Seat Parts, And Backrests (AREA)
Abstract
The invention belongs to the technical field of chairs, and particularly relates to a chair back frame. It solves the technical problems of unreasonable design and the like in the prior art. The chair back frame comprises a rectangular frame body made of plastic materials, wherein side clamping grooves I are respectively formed in the outer side surfaces of two side edges of the rectangular frame body, the side edges of the rectangular frame body are divided into front clamping parts and rear clamping parts by the side clamping grooves I, and a plurality of pressure reducing grooves which are arranged at intervals and communicated with the side edge clamping grooves I are formed in each front clamping part and/or rear clamping part. The invention has the advantages that: the elastic performance can be improved and the device is more practical.
Description
Technical Field
The invention belongs to the technical field of chairs, and particularly relates to a chair back frame.
Background
The chair is a daily furniture, a seat with a backrest and armrests.
The backrest generally includes an outer frame and an inner support member coupled within the outer frame.
The outer frame made of plastic can have very good elastic performance, and the elastic performance can be convenient for providing better comfort.
The existing plastic outer frame has the following defects:
after the outer frame bears the extrusion force of the back, the outer frame cannot effectively disperse the extrusion force, so that the comfort of the chair is poor.
Disclosure of Invention
The present invention has been made in view of the above problems, and an object of the present invention is to provide a seat back frame that can improve elastic performance and is more practical.
In order to achieve the above purpose, the present invention adopts the following technical scheme: the chair back frame comprises a rectangular frame body made of plastic materials, wherein side clamping grooves I are respectively formed in the outer side surfaces of two side edges of the rectangular frame body, the side edges of the rectangular frame body are divided into front clamping parts and rear clamping parts by the side clamping grooves I, and a plurality of pressure reducing grooves which are arranged at intervals and communicated with the side edge clamping grooves I are formed in each front clamping part and/or rear clamping part.
The designed side clamping groove I can improve the elastic deformation performance in the thickness direction and can effectively disperse pressure.
The pressure reducing groove can reduce the local section thickness of the side edge of the rectangular frame body, can disperse pressure, greatly improves the elastic performance and the comfort, and can prolong the service life and improve the practicability.
The side clamping groove is a collaborative decompression groove, and the whole structural design is more reasonable.
In the chair back frame, the number of the decompression grooves arranged on one front clamping part is equal to the number of the decompression grooves arranged on the other front clamping part.
The number is equal, and it can be convenient for the development of mould to and reduce manufacturing cost, simultaneously, can also improve production efficiency.
In the chair back frame, the decompression grooves arranged on one front clamping part are arranged in one-to-one correspondence with the decompression grooves arranged on the other front clamping part.
The structure can facilitate the improvement of the elastic symmetry of the structure and the production efficiency.
In the chair back frame, two side edges of the rectangular frame body respectively comprise an arched waist supporting part and a flat back supporting part, the first side clamping groove is formed in the outer side surfaces of the flat back supporting part and the arched waist supporting part, and the decompression groove is formed in the front clamping part of the flat back supporting part.
When a person sits on the chair, the lower part of the chair back takes the outermost point of the convex surface of the arched waist supporting part as a fulcrum, and when the person is pressed, the person can generate elastic waist supporting action, so that the function of waist support is achieved.
In the chair back frame, the middle parts of the inner walls of the two sides of the rectangular frame body are respectively connected with the fixing seats, and the two fixing seats are symmetrically arranged.
The fixing seat is convenient to connect with two connecting fulcrums of the neck rest frame.
In the chair back frame, the two sides and the inner wall of the lower side of the rectangular frame body are respectively connected with the inner convex reinforcing edges, the fixing seats are arranged on the back surface of the inner convex reinforcing edges, reinforcing ribs are arranged between the inner convex reinforcing edges and the inner walls of the two sides of the rectangular frame body, one reinforcing rib is distributed on the outer side of each fixing seat, and the height of each reinforcing rib protruding towards the inner side of the rectangular frame body is equal to that of each fixing seat protruding towards the inner side of the rectangular frame body.
The design of the inner convex reinforced edge can improve the overall structural strength.
The front surface of the inner convex reinforcing edge and the inner wall of the rectangular frame form an annular step, and the back surface of the inner convex reinforcing edge is flush with the back surface of the rectangular frame.
The design of strengthening protruding muscle, it can ensure the structural strength of connection fulcrum department, avoids seeing the phenomenon of cracking.
The structure with equal height of the bulges can be convenient to process and manufacture, and meanwhile, the interference of subsequent disassembly and assembly is avoided.
In the chair back frame, the inner convex height of the middle part of the inner convex reinforcing edge connected to the inner walls at two sides of the rectangular frame body is larger than the inner convex height of two ends of the inner convex reinforcing edge, the fixing seat is arranged in the middle part of the inner convex reinforcing edge, and the reinforcing convex rib is arranged in the middle part of the inner convex reinforcing edge.
The structure can further improve the structural strength and prolong the service life.
In the chair back frame, a second side clamping groove communicated with the first side clamping groove is formed in the outer side edge of the lower side of the rectangular frame body.
The side draw-in groove one and the side draw-in groove two of design, it can be convenient for the peripheral card of back go into fixedly, can improve the intensity of structure by a wide margin to and increase of service life, simultaneously, can also further improve dismouting efficiency.
In the chair back frame, the inner wall of the upper side of the rectangular frame body is connected with a rear convex arch block, two ends of the rear convex arch block are connected to the back surfaces of two sides of the inner convex reinforcing edge, and a connecting seat is arranged in the middle of the front surface of the rear convex arch block.
The design of the backward convex arch block can improve the deformation resistance of the top of the rectangular frame body and the strengthening effect in the width direction, and meanwhile, the assembly and connection of subsequent parts are convenient.
In the chair back frame, triangular connecting blocks are arranged between two ends of the rear convex arch block and the back surfaces of two sides of the inner convex reinforcing edge, a plurality of first through holes are respectively arranged on each triangular connecting block, second through holes which are communicated with the first through holes one by one are arranged on the inner convex reinforcing edge, and third through holes which are communicated with the first through holes one by one are arranged on the rear convex arch block;
and the designed through holes I, II and III can facilitate the fixation of the backrest.
The position of the inner convex reinforcing edge provided with a through hole II is also provided with a plurality of non-circular blind holes, and the bottoms of the non-circular blind holes extend into the triangular connecting block;
the non-circular blind hole comprises any one of a trapezoid hole, a triangle hole and an oval hole.
The front of the back protruding arch block is provided with two back protruding sinking grooves positioned on two sides of the connecting seat, the top side of the back protruding arch is flush with the top side of the rectangular frame body, the rest side of the back protruding arch block and the back of the back protruding arch block form a step, the back protruding arch block is provided with a plurality of through holes IV which are arranged at intervals along the length direction of the back protruding arch block, the rear ends of the through holes IV are communicated with the step, and the through holes III are communicated with the step.
The design of the rear convex sink can save materials and improve structural strength.
The through holes are convenient for fixing the top edge of the backrest.
Compared with the prior art, the chair back frame has the advantages that:
1. the designed side clamping groove I can improve the elastic deformation performance in the thickness direction and can effectively disperse pressure.
2. The pressure reducing groove can reduce the local section thickness of the side edge of the rectangular frame body, can disperse pressure, greatly improves the elastic performance and the comfort, and can prolong the service life and improve the practicability.
The side clamping groove is a collaborative decompression groove, and the whole structural design is more reasonable.
3. Simple structure and easy processing and manufacturing.
Drawings
Fig. 1 is a schematic perspective view of the present invention.
Fig. 2 is a schematic structural view provided by the present invention.
Fig. 3 is a schematic side view of the present invention.
Fig. 4 is a schematic view of a partial structure of the top of the annular frame body provided by the invention.
Fig. 5 is a schematic view of a partial structure of an annular frame according to the present invention.
Fig. 6 is a schematic view of a partial structure of an annular frame body according to the present invention.
Fig. 7 is a schematic view of the structure of the neck rest after connection according to the present invention.
Fig. 8 is a schematic view of a chair according to the present invention.
In the drawing, a rectangular frame body 1, a side clamping groove I11, a front clamping part 12, a rear clamping part 13, a decompression groove 14, a fixing seat 15, an inner convex reinforcing edge 16, a through hole II 161, a non-circular blind hole 162, a reinforcing convex rib 17, a side clamping groove II 18, a rear convex arch block 19, a connecting seat 191, a triangular connecting block 192, a through hole I193, a through hole III 194, a rear convex sinking groove 195, a rear convex protrusion 196, a through hole IV 197, a strip groove 198, a strip protrusion I199, a strip protrusion II 200, an arc groove 201, an included angle A, an included angle II b, an arch lumbar support part 1a and a flat back support part 1b.
Detailed Description
The following are specific embodiments of the invention and the technical solutions of the invention will be further described with reference to the accompanying drawings, but the invention is not limited to these embodiments.
Example 1
As shown in fig. 1, the chair back frame comprises a rectangular frame body 1 made of plastic material, and the rectangular frame body 1 is made by injection molding.
As shown in fig. 1-6, a first side clamping groove 11 is respectively arranged on the outer side surfaces of two sides of the rectangular frame body 1, the first side clamping groove 11 divides the two sides of the rectangular frame body 1 into a front clamping part 12 and a rear clamping part 13, and a plurality of pressure reducing grooves 14 which are arranged at intervals and are communicated with the first side clamping groove 11 are arranged on each front clamping part 12.
Next, a second side clamping groove 18 communicated with the first side clamping groove 11 is arranged on the outer side of the lower side of the rectangular frame body 1.
Side card slot one 11 and side card slot two 18, it can be convenient for the fixed periphery of back net or cloth.
In an optimized solution, the number of relief grooves 14 provided on one of the front clamping portions 12 is equal to the number of relief grooves 14 provided on the other front clamping portion 12.
Next, the relief grooves 14 provided on one of the front clamping portions 12 are provided in one-to-one correspondence with the relief grooves 14 provided on the other front clamping portion 12.
Specifically, in the present embodiment, the rectangular frame body 1 includes an arched lumbar support portion 1a and a flat back support portion 1b on both sides thereof, the arched lumbar support portion 1a is convex toward the human body side, a side clamping groove 11 is provided on the outer side surfaces of the flat back support portion 1b and the arched lumbar support portion 1a, and a decompression groove 14 is provided on the front clamping portion 12 of the flat back support portion 1b.
The middle parts of the inner walls of the two sides of the rectangular frame body 1 are respectively connected with a fixed seat 15, and the two fixed seats 15 are symmetrically arranged. The two fixing seats 15 are respectively provided with a positioning hole which is convenient for connection and fixation. The axes of the two positioning holes are coincident.
The two sides and the lower inner wall of the rectangular frame body 1 are respectively connected with an inner convex reinforcing edge 16, the fixing seats 15 are arranged on the back surface of the inner convex reinforcing edge 16, reinforcing convex ribs 17 are arranged between the inner convex reinforcing edge 16 and the two side inner walls of the rectangular frame body 1, one reinforcing convex rib 17 is distributed on the outer side of each fixing seat 15, and the height of the reinforcing convex rib 17 protruding towards the inner side of the rectangular frame body 1 is equal to the height of the fixing seat 15 protruding towards the inner side of the rectangular frame body 1.
The inner convex height of the middle part of the inner convex reinforcing edge 16 connected to the inner walls at two sides of the rectangular frame body 1 is larger than the inner convex height of two ends of the inner convex reinforcing edge 16, the fixing seat 15 is arranged in the middle of the inner convex reinforcing edge 16, and the reinforcing convex rib 17 is arranged in the middle of the inner convex reinforcing edge 16.
The inner wall of the upper side of the rectangular frame body 1 is connected with a rear convex arch block 19, two ends of the rear convex arch block 19 are connected to the back surfaces of two sides of the inner convex reinforcing edge 16, and a connecting seat 191 is arranged in the middle of the front surface of the rear convex arch block 19.
Triangular connecting blocks 192 are arranged between the two ends of the rear convex arch block 19 and the back surfaces of the two sides of the inner convex reinforcing edge 16, a plurality of first through holes 193 are respectively arranged on each triangular connecting block 192, second through holes 161 which are communicated with the first through holes 193 one by one are arranged on the inner convex reinforcing edge 16, and third through holes 194 which are communicated with the first through holes 193 one by one are arranged on the rear convex arch block 19;
the position of the inward convex reinforcing edge 16 provided with the through hole II 161 is also provided with a plurality of non-circular blind holes 162, and the bottoms of the non-circular blind holes 162 extend into the triangular connecting blocks 192; the non-circular blind hole 162 of the present embodiment is a trapezoidal hole.
The front of the rear convex arch block 19 is provided with two rear convex sinking grooves 195 positioned on two sides of the connecting seat 191, the top side of the rear convex protrusion 196 is flush with the top side of the rectangular frame body 1, the rest side edges of the rear convex protrusion 196 and the back of the rear convex arch block 19 form steps, the rear convex arch block 19 is provided with a plurality of through holes four 197 which are arranged at intervals along the length direction of the rear convex arch block 19, the rear ends of the through holes four 197 are communicated with the steps, and the through holes three 194 are communicated with the steps.
The front surface of the rear convex arch block 19 is also provided with a plurality of strip-shaped grooves 198 positioned on two sides of the connecting seat 191, a strip-shaped protrusion 199 is formed between two adjacent strip-shaped grooves 198 positioned on the same side, a strip-shaped protrusion 200 is formed between the strip-shaped groove 198 closest to the rear convex sink groove 195 and the rear convex sink groove 195, and arc-shaped grooves 201 are respectively arranged on the strip-shaped protrusion 199 and the strip-shaped protrusion 200.
At least one polygonal sink is arranged between two adjacent through holes 197.
A yielding gap is arranged in the middle of the front surface of the rear convex arch block 19, and the inner diameter of the yielding gap is gradually enlarged from top to bottom.
The lower side of the rectangular frame body 1 is of an arch structure, and the protruding direction of the lower side of the rectangular frame body 1 is consistent with the protruding direction of the rear protruding arch block 19.
The underside of the rear convex arch block 19 has an arcuate convex surface.
As shown in figures 3-4 of the drawings,
an included angle a of more than 90 degrees is formed between the inner walls of the two sides of the rectangular frame body 1 and the inward convex reinforcing edges 16.
An included angle b smaller than 90 degrees is formed between the inner wall of the lower side of the rectangular frame body 1 and the inward convex reinforcing edge 16.
As shown in figures 7-8 of the drawings,
this embodiment forms an assembly with the L-shaped support of the chair back after it is attached.
Meanwhile, the assembly is mounted on a chair frame to form a chair.
The chair of this embodiment has a sponge or mesh cloth as its cushion.
Secondly, the backrest is made of sponge or grid cloth.
Example two
The working principle and structure of this embodiment are basically the same as those of the first embodiment, and the only different structure is that: a plurality of pressure reducing grooves 14 which are arranged at intervals and communicated with the side clamping grooves 11 are arranged on each rear clamping part 13.
Example III
The working principle and structure of this embodiment are basically the same as those of the first embodiment, and the only different structure is that: and a plurality of pressure reducing grooves 14 which are arranged at intervals and are communicated with the first side clamping groove 11 are arranged on each front clamping part and each rear clamping part.
The specific embodiments described herein are offered by way of example only to illustrate the spirit of the invention. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.
Claims (7)
1. The chair back frame comprises a rectangular frame body (1) made of plastic materials and is characterized in that side clamping grooves I (11) are respectively arranged on the outer side surfaces of two sides of the rectangular frame body (1), the side clamping grooves I (11) divide the two sides of the rectangular frame body (1) into front clamping parts (12) and rear clamping parts (13), and a plurality of pressure reducing grooves (14) which are arranged at intervals and are communicated with the side clamping grooves I (11) are arranged on each front clamping part (12) and/or each rear clamping part (13);
the middle parts of the inner walls of the two sides of the rectangular frame body (1) are respectively connected with fixed seats (15), and the two fixed seats (15) are symmetrically arranged;
the two sides and the inner wall of the lower side of the rectangular frame body (1) are respectively connected with an inward convex reinforcing edge (16), the fixing seat (15) is arranged on the back surface of the inward convex reinforcing edge (16), a reinforcing convex rib (17) is arranged between the inward convex reinforcing edge (16) and the two side inner walls of the rectangular frame body (1), one reinforcing convex rib (17) is distributed on the outer side of each fixing seat (15), and the height of the reinforcing convex rib (17) protruding towards the inner side of the rectangular frame body (1) is equal to the height of the fixing seat (15) protruding towards the inner side of the rectangular frame body (1);
the number of the decompression grooves (14) arranged on one front clamping part (12) is equal to the number of the decompression grooves (14) arranged on the other front clamping part (12).
2. The chair back frame according to claim 1, wherein the pressure reducing grooves (14) provided on one of the front clamping portions (12) are provided in one-to-one correspondence with the pressure reducing grooves (14) provided on the other front clamping portion (12).
3. The chair back frame according to claim 1 or 2, characterized in that the two sides of the rectangular frame body (1) respectively comprise an arched waist support part (1 a) and a flat back support part (1 b), a side clamping groove I (11) is arranged on the outer side surfaces of the flat back support part (1 b) and the arched waist support part (1 a), and a decompression groove (14) is arranged on the front clamping part (12) of the flat back support part (1 b).
4. The chair back frame according to claim 1, wherein the inner convex reinforcing edges (16) connected to the inner walls of the two sides of the rectangular frame body (1) are larger in middle part than the inner convex edges (16), the fixing seat (15) is arranged in the middle part of the inner convex reinforcing edges (16), and the reinforcing ribs (17) are arranged in the middle part of the inner convex reinforcing edges (16).
5. The chair back frame according to claim 1, wherein the outer side of the lower side of the rectangular frame body (1) is provided with a side clamping groove two (18) communicated with the side clamping groove one (11).
6. The chair back frame according to claim 1, wherein the inner wall of the upper side of the rectangular frame body (1) is connected with a back convex arch block (19), two ends of the back convex arch block (19) are connected to the back surfaces of two sides of the inner convex reinforcement edge (16), and a connecting seat (191) is arranged in the middle of the front surface of the back convex arch block (19).
7. The chair back frame according to claim 6, wherein triangular connection blocks (192) are arranged between two ends of the rear convex arch block (19) and two side back surfaces of the inner convex reinforcement edge (16), a plurality of through holes I (193) are respectively arranged on each triangular connection block (192), through holes II (161) which are communicated with the through holes I (193) one by one are arranged on the inner convex reinforcement edge (16), and through holes III (194) which are communicated with the through holes I (193) one by one are arranged on the rear convex arch block (19);
the position of the inward convex reinforcing edge (16) provided with a through hole II (161) is also provided with a plurality of non-circular blind holes (162), and the bottoms of the non-circular blind holes (162) extend into the triangular connecting blocks (192);
the front of the back convex arch block (19) is provided with two back convex sinking grooves (195) which are arranged on two sides of the connecting seat (191), the top side of the back convex arch (196) is flush with the top side of the rectangular frame body (1), the rest side edges of the back convex arch (196) and the back of the back convex arch block (19) form steps, the back convex arch block (19) is provided with a plurality of through holes four (197) which are arranged at intervals along the length direction of the back convex arch block (19), the rear ends of the through holes four (197) are communicated with the steps, and the through holes three (194) are communicated with the steps.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810864170.2A CN109008377B (en) | 2018-08-01 | 2018-08-01 | Chair back frame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810864170.2A CN109008377B (en) | 2018-08-01 | 2018-08-01 | Chair back frame |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109008377A CN109008377A (en) | 2018-12-18 |
| CN109008377B true CN109008377B (en) | 2024-02-27 |
Family
ID=64647551
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810864170.2A Active CN109008377B (en) | 2018-08-01 | 2018-08-01 | Chair back frame |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109008377B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6726278B1 (en) * | 2003-06-13 | 2004-04-27 | First Source Furniture Group Llc | Back pad for chair back |
| CN101065039A (en) * | 2004-10-13 | 2007-10-31 | 株式会社冈村制作所 | Stretching structure of stretching material in chair and backrest of chair |
| JP2014045964A (en) * | 2012-08-31 | 2014-03-17 | Itoki Corp | Chair and backrest thereof |
| CN106473491A (en) * | 2015-08-27 | 2017-03-08 | 上海恩荣办公家具有限公司 | The chair that quickly can be combined |
| CN208909434U (en) * | 2018-08-01 | 2019-05-31 | 浙江粤强家具科技有限公司 | Chair back frame |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102004032765C9 (en) * | 2004-07-06 | 2009-02-26 | Volker Wilhelm Eysing | Office chair with flexible backrest |
-
2018
- 2018-08-01 CN CN201810864170.2A patent/CN109008377B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6726278B1 (en) * | 2003-06-13 | 2004-04-27 | First Source Furniture Group Llc | Back pad for chair back |
| CN101065039A (en) * | 2004-10-13 | 2007-10-31 | 株式会社冈村制作所 | Stretching structure of stretching material in chair and backrest of chair |
| JP2014045964A (en) * | 2012-08-31 | 2014-03-17 | Itoki Corp | Chair and backrest thereof |
| CN106473491A (en) * | 2015-08-27 | 2017-03-08 | 上海恩荣办公家具有限公司 | The chair that quickly can be combined |
| CN208909434U (en) * | 2018-08-01 | 2019-05-31 | 浙江粤强家具科技有限公司 | Chair back frame |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109008377A (en) | 2018-12-18 |
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