WO2011106920A1 - Integrated shaped net frame for office chair - Google Patents

Integrated shaped net frame for office chair Download PDF

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Publication number
WO2011106920A1
WO2011106920A1 PCT/CN2010/002030 CN2010002030W WO2011106920A1 WO 2011106920 A1 WO2011106920 A1 WO 2011106920A1 CN 2010002030 W CN2010002030 W CN 2010002030W WO 2011106920 A1 WO2011106920 A1 WO 2011106920A1
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WO
WIPO (PCT)
Prior art keywords
frame
inner frame
mesh
net
strip
Prior art date
Application number
PCT/CN2010/002030
Other languages
French (fr)
Chinese (zh)
Inventor
区赞勋
Original Assignee
Ou Zanxun
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Ou Zanxun filed Critical Ou Zanxun
Publication of WO2011106920A1 publication Critical patent/WO2011106920A1/en

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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
    • A47C7/02—Seat parts
    • A47C7/28—Seat parts with tensioned springs, e.g. of flat type
    • A47C7/282—Seat parts with tensioned springs, e.g. of flat type with mesh-like supports, e.g. elastomeric membranes
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C31/00—Details or accessories for chairs, beds, or the like, not provided for in other groups of this subclass, e.g. upholstery fasteners, mattress protectors, stretching devices for mattress nets
    • A47C31/02—Upholstery attaching means

Definitions

  • the utility model relates to a furniture accessory, in particular to a mesh frame for an integrally formed office chair.
  • the backrest seat that uses the frame to manufacture the office chair has the advantages of good air permeability, certain elasticity and comfortable use, and is very popular.
  • due to the design and manufacturing process problems of the original frame there have been deficiencies such as easy relaxation, deformation, and neat appearance.
  • I filed a utility model patent entitled "Integrated Mesh Frame Home Specific" in April 2008 the patent number is ZL200820046491. 3 o
  • the main feature of this patent is to let the net It is placed in an injection-molded four-slot inner frame with anti-sliding, and finally made by molding the outer frame on the inner frame.
  • the technical solution has the following problems: First, the excess mesh is removed from the outer side of the inner frame after the inner frame is manufactured, and the more expensive mesh cloth is wasted; the second is two injection molding. , low productivity, and increased process costs.
  • the utility model provides a mesh frame member for finishing the office chair.
  • a frame member for an integrally formed office chair includes a mesh cloth, an inner frame and an outer frame, and is characterized in that: a pressure net corresponding to the upper surface of the inner frame is further provided.
  • the side strips are provided with a plurality of protrusions at equal distances on the upper surface of the inner frame, and the mesh kitchen edge is placed on the inner frame through a mesh hole matched with the inner frame protrusion column, and the pressure mesh side strip is matched with the inner frame protrusion column
  • the through hole is pressed on the mesh cloth, and the inner frame and the pressing net edge strip are placed outside the outer frame except for the inner end, and the remaining part is placed in the outer frame, and the outer surface is completely engaged with the outer frame.
  • the pressure mesh strip may be an integral frame shape, but may also be composed of four edge strips. In order to conveniently place the mesh on the inner frame.
  • a lower flange is provided on the outer side of the web strip to facilitate pressing the web against the inner frame.
  • a blind hole having at least not less than one is disposed on the inner frame between the two protrusions of the inner frame,
  • the corresponding pressure mesh strip also has a through groove connected with the blind hole to facilitate the fastening of the mesh cloth after the outer frame is injection molded.
  • An outer protruding head is arranged on the outer side of the top end of the outer frame stud, and a chamfer is formed on the inner side of the top end, and the installed pressing net edge strip is caught by the outer convex head, so that the pressing net edge strip and the net cloth are not easily loosened.
  • the inner frame of the existing net frame body must have a mechanical method to inject the inner frame after the net brazing, and a part of the mesh cloth should be reserved in the process and removed after injection molding, so the mesh cloth is consumed.
  • the amount is large, and after using this technical solution, there is no need to reserve a mesh cloth, and the size thereof is slightly larger than the surface of the inner frame. It has been proved by practice that a piece of mesh can only create four frames, and After the technical solution, six net frames can be manufactured, which greatly improves the utilization rate of the mesh and saves costs.
  • the inner frame of the existing net frame body is injection molded.
  • the process route is long and the production efficiency is low.
  • the improved inner frame does not need to be injection molded, and the process is optimized, which greatly improves the productivity and reduces the production cost.
  • the mesh is evenly elastic, with good strength and reliable safety.
  • FIG. 1 is a perspective view of a frame member for an integrally formed office chair.
  • Figure 2 shows the axial assembly of the inner frame (2), the mesh (1) and the pressure mesh strip (4).
  • Figure 3 is an enlarged view of A in Figure 2.
  • Figure 4 is an enlarged view of B in Figure 2.
  • Fig. 5 is an enlarged cross-sectional view taken along line B-B of the stud (5) of Fig. 1.
  • Fig. 6 is an enlarged cross-sectional view taken along line C-C of Fig. 1 with a blind hole (9).
  • a frame member for an integrally formed office chair includes a mesh cloth 1, an inner frame 2 and an outer frame 3.
  • the improvement of the utility model is that an additional corresponding to the upper surface of the inner frame 2 is provided.
  • the pressure mesh strip 4 is provided with a plurality of protrusions 5 (as shown in FIG. 3) at equal intervals on the upper surface of the inner frame 2, and the periphery of the mesh cloth 1 is provided with a through hole matching the protrusions 5 of the inner frame 2. 6.
  • the through hole 6 and the protruding post 5 are disposed on the inner frame 1 through the through hole 6 , and the through hole 7 corresponding to the protruding post 5 of the inner frame 2 is also formed on the pressing mesh side strip 4 (as shown in FIG. 4 ).
  • the pressure mesh strip 4 is disposed on the mesh 1 through the through hole 7 and the protrusion 5 of the inner frame 2 (as shown in FIG. 5), and the inner frame 2 and the pressure mesh strip 4 are placed on the outer frame 3 except the inner end.
  • the remaining part is completely disposed in the outer frame 3, and its surface Fully engaged with the outer frame 3 (as shown in Figures 5-6).
  • the inner frame 2, the mesh 1 and the pressed web strip 4 are joined to the outer frame 3 by an injection molding method.
  • the cut mesh 1 is firstly placed on the inner frame 2 through the through hole 6 and the inner frame 2, and then the pressed mesh strip 4 is matched with the inner frame 2 by the through hole 7
  • the mesh 1 is placed on the press, and then the combined inner frame 2, mesh 1 and web edge strip 4 are placed in an injection mold, and finally the outer frame 3 is molded to form the utility model.
  • the pressure mesh strip 4 is composed of four front and rear side strips to form a frame-shaped pressure net strip corresponding to the upper surface of the inner frame 2, and can be placed on the inner frame 2 after the mesh cloth 1 is installed.
  • a lower flange 8 is also provided on the outside of the web side strip 4.
  • the distance between the two studs 5 is 38 mm.
  • three blind holes 9 are provided in the inner frame 2 between the two studs 5, as shown in FIG.
  • a through slot 10 is defined in the corresponding crimping strip 4 .
  • the stud 5 of the embodiment has a cylindrical shape, and an outer protruding head 11 is disposed on the outer side of the top end thereof.
  • the chamfer 12 has a size such that the through hole 7 of the pressing mesh strip 4 can be sleeved on the stud 5 and the crimping strip 4 can be fastened.

Landscapes

  • Chair Legs, Seat Parts, And Backrests (AREA)

Abstract

An integrated shaped net frame for office chair comprises a net cloth (1), an inner frame (2) and an outer frame (3), and is further provided with a net-pressing side strip (4) corresponding to the upper surface of the inner frame (2). Several protruding poles (5) are equidistantly provided at the upper surface of the inner frame (2). The peripheral sides of the net cloth (1) are arranged on the inner frame (2) through net holes (6) matched with the protruding poles (5) of the inner frame (2). The net-pressing side strip (4) is pressed to the net cloth (1) via through holes (7) matched with the protruding poles (5) of the inner frame (2). Other parts of the inner frame (2) and the net-pressing side strip (4) are arranged in the outer frame (3) except their inner ends arranged out of the outer frame (3), and the outer surfaces thereof are entirely connected to the outer frame (3). The net cloth in the application with uniform elasticity and good intensity is secure and trusty in use.

Description

说 明 书 整体成型式办公椅用网框件 技术领域  Illustrated book, integral framed office chair net frame parts
本实用新型涉及家具配件，特别是一种整体成型式办公椅用网框 件。  The utility model relates to a furniture accessory, in particular to a mesh frame for an integrally formed office chair.
背景技术 Background technique
目前， 采用网框制造办公椅的靠背式椅座具有透气性好、 有一定 的弹性和使用十分舒适的优点， 很受人们的欢迎。 然而， 最初的网框 因设计和制造工艺的问题， 一直存在容易松驰、 变形以及外观不够整 齐美观等不足之处。为了解决网框家具存在的上述缺陷，本人于 2008 年 4月申报了发明名称为 "整体成型式网框家具体"的实用新型专利， 专利号为 ZL200820046491. 3o 该专利的主要特点是让网布置于经注 塑而成并带有防滑动的四槽的内框内，最后在内框上再注塑外框而制 成。 经过近两年的实践， 亦发现该技术方案存在如下问题： 其一是制 造内框后要将多余的网布从内框外侧除去， 浪费了价格较贵的网布； 其二是两次注塑, 生产率低， 而且增加了工艺成本。 At present, the backrest seat that uses the frame to manufacture the office chair has the advantages of good air permeability, certain elasticity and comfortable use, and is very popular. However, due to the design and manufacturing process problems of the original frame, there have been deficiencies such as easy relaxation, deformation, and neat appearance. In order to solve the above-mentioned defects in the frame furniture, I filed a utility model patent entitled "Integrated Mesh Frame Home Specific" in April 2008, the patent number is ZL200820046491. 3 o The main feature of this patent is to let the net It is placed in an injection-molded four-slot inner frame with anti-sliding, and finally made by molding the outer frame on the inner frame. After nearly two years of practice, it has also been found that the technical solution has the following problems: First, the excess mesh is removed from the outer side of the inner frame after the inner frame is manufactured, and the more expensive mesh cloth is wasted; the second is two injection molding. , low productivity, and increased process costs.
发明内容 Summary of the invention
为了解决 "整体成型式网框家具体"实用新型专利存在的生产低 和网布耗费量较大的不足之外，本实用新型号提供一种整理体成型式 办公椅用网框件。  In order to solve the shortcomings of the "integrated molding type frame specific" utility model patent and the large consumption of the net cloth, the utility model provides a mesh frame member for finishing the office chair.
上述任务是以这样的方式实现的：一种整体成型式办公椅用网框 件， 包括有网布、 内框和外框， 其特征是: 还设有一个与内框上表面 对应的压网边条， 在内框的上表面等距离设有若干个凸柱， 网布厨边 通过与内框凸柱相配合的网孔安置于内框上，压网边条通过与内框凸 柱配合的通孔压置于网布上， 内框和压网边条除内端置于外框外， 其 余部分安置于外框内， 其外表面与外框完全接合。  The above task is realized in such a manner that a frame member for an integrally formed office chair includes a mesh cloth, an inner frame and an outer frame, and is characterized in that: a pressure net corresponding to the upper surface of the inner frame is further provided. The side strips are provided with a plurality of protrusions at equal distances on the upper surface of the inner frame, and the mesh kitchen edge is placed on the inner frame through a mesh hole matched with the inner frame protrusion column, and the pressure mesh side strip is matched with the inner frame protrusion column The through hole is pressed on the mesh cloth, and the inner frame and the pressing net edge strip are placed outside the outer frame except for the inner end, and the remaining part is placed in the outer frame, and the outer surface is completely engaged with the outer frame.
上述技术方案还可以釆取如下措施进一步完善：  The above technical solutions can also be further improved by taking the following measures:
所述的压网边条可以是整体的框形，但亦可以由四条边条构成。 以方 便将网布安置于内框上。 The pressure mesh strip may be an integral frame shape, but may also be composed of four edge strips. In order to conveniently place the mesh on the inner frame.
在压网边条的外侧最好设有下翻边， 有利于将网布紧压于内框 上。  Preferably, a lower flange is provided on the outer side of the web strip to facilitate pressing the web against the inner frame.
在内框两个凸柱之间的内框上还设有至少不小于 1个的盲孔，在 对应的压网边条上亦开有一个与盲孔连接的通槽，以便于外框注塑后 将网布紧固在一起。 a blind hole having at least not less than one is disposed on the inner frame between the two protrusions of the inner frame, The corresponding pressure mesh strip also has a through groove connected with the blind hole to facilitate the fastening of the mesh cloth after the outer frame is injection molded.
在外框凸柱的顶端外侧设有一个外凸头， 在顶端内侧开有一倒 角， 通过外凸头将安装后的压网边条卡住，使压网边条及网布不易松 脱。  An outer protruding head is arranged on the outer side of the top end of the outer frame stud, and a chamfer is formed on the inner side of the top end, and the installed pressing net edge strip is caught by the outer convex head, so that the pressing net edge strip and the net cloth are not easily loosened.
釆用上述技术方案制造的网框体，与已有技术制造的网框体相比 有如下优点：  The mesh frame manufactured by the above technical solution has the following advantages compared with the mesh frame manufactured by the prior art:
1、 现有的网框体的内框在注塑时必须有机械方法将网布拉紧后 才注塑内框， 在工艺上要预留一部分网布， 在注塑后去除， 因此其网 布耗用量较大， 而釆用本技术方案后， 不需要预留网布， 其大小稍大 于内框表面便可， 经实践证明， 已有技术.一块网布只能造四个框体， 而釆用本技术方案后可制造六个网框体， 大大提高网布的利用率、 节 省成本。  1. The inner frame of the existing net frame body must have a mechanical method to inject the inner frame after the net brazing, and a part of the mesh cloth should be reserved in the process and removed after injection molding, so the mesh cloth is consumed. The amount is large, and after using this technical solution, there is no need to reserve a mesh cloth, and the size thereof is slightly larger than the surface of the inner frame. It has been proved by practice that a piece of mesh can only create four frames, and After the technical solution, six net frames can be manufactured, which greatly improves the utilization rate of the mesh and saves costs.
2、 现有的网框体的内框要注塑而成， 其工艺路线长， 生产效率 低，经改进后的内框不需用要注塑，优化了工艺，大大提高了生产率、 降低生产成本。  2. The inner frame of the existing net frame body is injection molded. The process route is long and the production efficiency is low. The improved inner frame does not need to be injection molded, and the process is optimized, which greatly improves the productivity and reduces the production cost.
3、 网布弹性均匀、：强度好、 安全性可靠。  3. The mesh is evenly elastic, with good strength and reliable safety.
附图说明 DRAWINGS
以下结合附图对本实用新型的结构作进一步的说明：  The structure of the utility model is further described below with reference to the accompanying drawings:
图 1为一种整体成型式办公椅用网框件的立体图。  1 is a perspective view of a frame member for an integrally formed office chair.
图 2为内框（ 2 )、 网布 （ 1 ) 以及压网边条（ 4 ) 的轴测装配图。 图 3为图 2中 A处放大图。  Figure 2 shows the axial assembly of the inner frame (2), the mesh (1) and the pressure mesh strip (4). Figure 3 is an enlarged view of A in Figure 2.
图 4为图 2中 B处放大图。  Figure 4 is an enlarged view of B in Figure 2.
图 5为图 1中有凸柱 （5 )处的 B-B剖视放大图。  Fig. 5 is an enlarged cross-sectional view taken along line B-B of the stud (5) of Fig. 1.
图 6为图 1中有盲孔 （9 )处的 C-C剖视放大图。  Fig. 6 is an enlarged cross-sectional view taken along line C-C of Fig. 1 with a blind hole (9).
具体实施方式 detailed description
如图 1-图 3所示，一种整体成型式办公椅用网框件包括有网布 1、 内框 2和外框 3， 本实用新型改进之处是增设一个与内框 2上表面对 应的压网边条 4， 在内框 2的上表面等距离设置若干个凸柱 5 (如图 3 所示）, 网布 1的周边开有与内框 2的凸柱 5相配和的通孔 6， 通过 其通孔 6与凸柱 5配合安置于内框 1上,在压网边条 4上亦开有与内 框 2凸柱 5相对应的通孔 7 (如图 4所示），压网边条 4通过其通孔 7 与内框 2的凸柱 5配合安置于网布 1上（如图 5所示）， 内框 2和压 网边条 4除内端置于外框 3外， 其佘部分全安置于外框 3内， 其表面 与外框 3完全接合（如图 5-图 6所示）。 如现有技术一样， 内框 2、 网布 1以及压网边条 4是通过注塑方法与外框 3连接在一起。注塑前， 先将裁好的网布 1通过通孔 6与内框 2凸柱 5配合安置于内框 2上， 再将压网边条 4通过其通孔 7与内框 2凸柱 5配合压设置网布 1上， 然后将组合后的内框 2、 网布 1和压网边条 4放置于注塑模具内， 最 后注塑外框 3便可制成本实用新型。 As shown in FIG. 1 to FIG. 3, a frame member for an integrally formed office chair includes a mesh cloth 1, an inner frame 2 and an outer frame 3. The improvement of the utility model is that an additional corresponding to the upper surface of the inner frame 2 is provided. The pressure mesh strip 4 is provided with a plurality of protrusions 5 (as shown in FIG. 3) at equal intervals on the upper surface of the inner frame 2, and the periphery of the mesh cloth 1 is provided with a through hole matching the protrusions 5 of the inner frame 2. 6. The through hole 6 and the protruding post 5 are disposed on the inner frame 1 through the through hole 6 , and the through hole 7 corresponding to the protruding post 5 of the inner frame 2 is also formed on the pressing mesh side strip 4 (as shown in FIG. 4 ). The pressure mesh strip 4 is disposed on the mesh 1 through the through hole 7 and the protrusion 5 of the inner frame 2 (as shown in FIG. 5), and the inner frame 2 and the pressure mesh strip 4 are placed on the outer frame 3 except the inner end. In addition, the remaining part is completely disposed in the outer frame 3, and its surface Fully engaged with the outer frame 3 (as shown in Figures 5-6). As in the prior art, the inner frame 2, the mesh 1 and the pressed web strip 4 are joined to the outer frame 3 by an injection molding method. Before the injection molding, the cut mesh 1 is firstly placed on the inner frame 2 through the through hole 6 and the inner frame 2, and then the pressed mesh strip 4 is matched with the inner frame 2 by the through hole 7 The mesh 1 is placed on the press, and then the combined inner frame 2, mesh 1 and web edge strip 4 are placed in an injection mold, and finally the outer frame 3 is molded to form the utility model.
在实施本实用新型时，压网边条 4由前后左右四条边条组成一个 与内框 2上表面对应的框状压网边条，在安装网布 1后可先后安置于 内框 2上， 在压网边条 4的外侧还设有下翻边 8。 本实施例两个凸柱 5之间的距离为 38亳米， 如图 3所示， 在两个凸柱 5之间的内框 2 上设有 3个盲孔 9， 如图 4所示， 在对应的压网边条 4上设有一个通 槽 10, 如图 3所示， 本实施例的凸柱 5为圆柱形， 在其顶端外侧设 有一外凸头 11， 在其顶端内侧开有一倒角 12， 其大小以压网边条 4 的通孔 7能套至于凸柱 5上并将压网边条 4扣住便可。  In the practice of the present invention, the pressure mesh strip 4 is composed of four front and rear side strips to form a frame-shaped pressure net strip corresponding to the upper surface of the inner frame 2, and can be placed on the inner frame 2 after the mesh cloth 1 is installed. A lower flange 8 is also provided on the outside of the web side strip 4. In this embodiment, the distance between the two studs 5 is 38 mm. As shown in FIG. 3, three blind holes 9 are provided in the inner frame 2 between the two studs 5, as shown in FIG. A through slot 10 is defined in the corresponding crimping strip 4 . As shown in FIG. 3 , the stud 5 of the embodiment has a cylindrical shape, and an outer protruding head 11 is disposed on the outer side of the top end thereof. The chamfer 12 has a size such that the through hole 7 of the pressing mesh strip 4 can be sleeved on the stud 5 and the crimping strip 4 can be fastened.

Claims

权利要求书 Claim
1、 一种一种整体成型式办公椅用网框件包括有网布 （1)、 内框 (2)和外框（3), 其特征是， 还设有一个与内框（2)上表面对应的 压网边条（4)， 在内框（2) 的上表面等距离设有若干个凸柱 （5)， 网布（1)周边通过与内框（2) 凸住（5)相配合的网孔（6)安置于 内框（2)上， 压网边条（4)周边通过与内框（2) 凸柱（5)配合的 通孔（7)压置于网布（1)上， 内框（2)和压网边条（4)除内端外 置于外框（3)外， 其余部分安置于外框（3)内， 其外表面与外框（3) 完全接合。 1. A mesh frame member for an integrally formed office chair comprises a mesh cloth (1), an inner frame (2) and an outer frame (3), characterized in that: an inner frame (2) is further provided The corresponding web edge strip (4) on the surface is provided with a plurality of studs (5) at equal distances on the upper surface of the inner frame (2), and the periphery of the mesh (1) is protruded from the inner frame (2) (5) The mating mesh (6) is placed on the inner frame (2), and the periphery of the press mesh strip (4) is pressed against the mesh through the through hole (7) that cooperates with the inner frame (2) stud (5) ( 1) Upper, inner frame (2) and pressure mesh edge strip (4) are placed outside the outer frame (3) except for the inner end, and the rest are placed in the outer frame (3), the outer surface and the outer frame (3) Fully engaged.
2、 根据权利要求 1所述的网框体， 其特征在于所述的压网边条 (4) 由前后左右四条边条构成。  2. The frame body according to claim 1, characterized in that the pressure mesh strip (4) is composed of four front and rear side bars.
3、 .根据权利要求 1所述的网框体， 其特征在于所述的压网边条 (4) 的外侧设有下翻边（8)。  3. A frame body according to claim 1, characterized in that the outer side of the pressure mesh strip (4) is provided with a lower flange (8).
4、根据权利要求 1所述的网框体，其特征在于所述的在内框（ 2 ) 两个凸柱（5)之间设有至少不小于 1个盲孔（9), 在对应的压网边 条（4)上设有一个与盲孔 （9)连通的通槽。  The frame body according to claim 1, characterized in that the inner frame (2) is provided with at least one blind hole (9) between the two protrusions (5), corresponding to The pressure mesh strip (4) is provided with a through groove communicating with the blind hole (9).
5、 根据权利要求 1所述的网框体， 其特征在于所述的顶端外侧 设有一个外凸头（11)， 在其顶端内侧开有一倒角 （12)。  The frame body according to claim 1, characterized in that the outer side of the top end is provided with an outer convex head (11), and a chamfer (12) is formed inside the top end.
PCT/CN2010/002030 2010-03-03 2010-12-13 Integrated shaped net frame for office chair WO2011106920A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201020125867.7 2010-03-03
CN2010201258677U CN201767475U (en) 2010-03-03 2010-03-03 Integrally molded screen frame component for office chair

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Publication Number Publication Date
WO2011106920A1 true WO2011106920A1 (en) 2011-09-09

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CN108451226B (en) * 2017-12-15 2020-08-07 东莞致诚办公家具有限公司 Chair with novel built-in structure
CN110063606A (en) * 2019-03-14 2019-07-30 东莞濠文塑胶五金制品有限公司 Backrest

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DE202008012924U1 (en) * 2008-04-11 2008-12-18 Lin, Cheng-Hung, Jhongpu Hsiang Net Chair Rack and Net Chair Construction

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JP2002102557A (en) * 2000-10-03 2002-04-09 Meiwa Plast Kk Net hanging member
US20040262975A1 (en) * 2003-06-27 2004-12-30 Tung-Hua Su Backrest assembly
CN1579289A (en) * 2003-08-08 2005-02-16 吴秀雪 Method for making office chair back and product thereof
CN200953958Y (en) * 2006-09-30 2007-10-03 苏同华 Sitting-chair back
DE202008012924U1 (en) * 2008-04-11 2008-12-18 Lin, Cheng-Hung, Jhongpu Hsiang Net Chair Rack and Net Chair Construction

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