CN113441908B - Forming process of seat frame - Google Patents
Forming process of seat frame Download PDFInfo
- Publication number
- CN113441908B CN113441908B CN202110590836.1A CN202110590836A CN113441908B CN 113441908 B CN113441908 B CN 113441908B CN 202110590836 A CN202110590836 A CN 202110590836A CN 113441908 B CN113441908 B CN 113441908B
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- frame
- main body
- body frame
- accessory
- seat
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- 238000000034 method Methods 0.000 title claims abstract description 23
- 239000004744 fabric Substances 0.000 claims abstract description 48
- 239000002184 metal Substances 0.000 claims abstract description 37
- 238000005452 bending Methods 0.000 claims abstract description 10
- 238000003466 welding Methods 0.000 claims abstract description 5
- 238000003780 insertion Methods 0.000 claims description 21
- 230000037431 insertion Effects 0.000 claims description 21
- 238000000465 moulding Methods 0.000 claims description 16
- 230000007704 transition Effects 0.000 claims description 7
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 239000000463 material Substances 0.000 description 12
- 238000009740 moulding (composite fabrication) Methods 0.000 description 6
- 238000003754 machining Methods 0.000 description 3
- 238000005520 cutting process Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 238000009958 sewing Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D35/00—Combined processes according to or processes combined with methods covered by groups B21D1/00 - B21D31/00
- B21D35/002—Processes combined with methods covered by groups B21D1/00 - B21D31/00
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chair Legs, Seat Parts, And Backrests (AREA)
Abstract
The invention discloses a forming process of a seat frame, which comprises the following steps: bending a metal round pipe and enclosing the metal round pipe into an accessory frame; step two, flattening the attached body frame to enable the attached body frame to be pressed into a flat shape; the inner edge and the outer edge of the accessory frame are both arc surfaces; thirdly, carrying out stamping and flanging treatment on the flattened appendage frame to enable the inner edge part to be turned down to form a connecting part and the outer edge part to form an extending part; step four, bending the accessory frame to match the shape of the main body frame, so that the length and the path of each side of the accessory frame are matched with each side of the main body frame; fifthly, welding and fixing the connecting part of the accessory frame on the main body frame; the extending part is in a hollow state relative to the main body frame, and a caulking groove for closing a net is formed between the extending part and the main body frame. And step six, connecting the mesh cloth in the caulking groove along the outline of the main body frame, so that the mesh cloth is tightened on the main body frame. The forming process has the advantages of ingenious structure and convenient processing.
Description
Technical Field
The invention relates to the field of seats, in particular to a forming process of a seat frame.
Background
As furniture frequently used in daily life, chairs have various external structures. At present, in order to improve air permeability and heat dissipation, save materials and reduce cost, a plurality of chairs adopt mesh cloth matched with a chair back frame or a chair seat frame as a chair back or a chair seat of the chair; the mesh cloth chair is characterized in that a connecting structure of mesh cloth and a back frame or a seat frame of the mesh cloth chair is mainly characterized in that an embedded groove is concavely arranged along the periphery of the back frame or the seat frame, the mesh cloth is tightly stretched on the back frame or the seat frame, then the mesh cloth is inwards folded on the back frame or the seat frame in the four circumferential directions, then the periphery of the mesh cloth is clamped and pressed into the embedded groove, and the mesh cloth at each section is fixed in a groove through screws or nails, so that the mesh cloth is tightly fixed on the seat frame or the back frame.
However, the frame structure of the traditional mesh fabric chair is mainly made of plastic materials, and the embedded groove is formed in a die mode and is easy to connect with screws and gun nails; the back frame or the seat frame is formed by two frames made of plastic materials in a folding mode, and an embedding groove is formed between the two frames in the folding mode to clamp the edge of the mesh cloth, however, two pairs of dies need to be machined, and machining cost is improved.
However, in order to seek better texture and make the overall appearance more beautiful in the office chairs on the market, the chair frame is designed into a metal tubular structure; that is, the back frame or the seat frame is made of metal, but it is difficult to directly form the caulking groove on the metal frame, which makes the metal frame difficult to process, and also makes it difficult to attach a gun nail or a screw, which makes it difficult to attach a net thereon.
Now, a circle of auxiliary frames are welded on the frame, and the auxiliary frames are of metal sheet structures and extend along the circumferential direction of the seat frame; then a caulking groove for closing the net can be formed between the auxiliary frame and the seat frame; and the welding mode is adopted, the surface of the metal round pipe cannot be damaged, the connection is stable, and the problem that the metal tubular structure is difficult to screen is effectively solved. But there is another problem that follows: the auxiliary frame adopts a sheet structure, so that the edge of the auxiliary frame, which is contacted with the screen cloth, is relatively sharp; when the seat is used, the mesh can be stressed tightly, so that the mesh can be lacerated by the auxiliary frame, the defects exist, and the strength of the sheet structure cannot be guaranteed; if the auxiliary frame is machined by adopting a metal plate with thickness, the auxiliary frame is necessarily required to be bent, cut and polished, the process is complex, the cost is greatly increased, and materials are wasted.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide a forming process of a seat frame, which is convenient to process and low in cost, wherein an accessory frame is arranged on a main body frame to form a caulking groove for mounting mesh cloth; the seat can be screened without processing the main body frame made of metal, so that the processing difficulty is reduced, and the processing cost is saved; the accessory frame is formed by flattening a metal round pipe, has a certain thickness and is high in strength; the contact surface of the connected appendage framework and the screen cloth is an arc surface, so that stress can be dispersed, and the screen cloth is prevented from being scratched by metal materials; moreover, the metal round pipe is adopted, and only flattening and stamping flanging treatment is needed, so that the material cost is lower, the processing steps are saved, and the waste of materials is avoided.
The technical scheme of the invention is realized as follows:
a process for forming a seat frame comprising the steps of:
firstly, manufacturing an accessory frame attached to a frame main body, and bending a metal round pipe to form the accessory frame matched with the outline of the main frame;
step two, flattening the enclosed accessory frame to enable the accessory frame to be pressed into a flat shape from a circular tube shape; the flattened accessory frame forms a double-layer structure with two flat layers which are attached up and down, and the inner edge and the outer edge of the accessory frame are both arc surfaces;
thirdly, performing stamping and flanging treatment on the flattened appendage frame to enable the appendage frame to be downwards turned close to the inner edge part and form a connecting part connected with the main body frame, wherein the outer edge part correspondingly forms an extending part;
step four, bending the accessory frame to match the shape of the main body frame, so that the length and the path of each side of the accessory frame are matched with each side of the main body frame;
step five, attaching the accessory frame to the main body frame, and welding and fixing the connecting part of the accessory frame on the main body frame; the extending part is in a free state relative to the main body frame, and an embedding groove for closing a net is formed between the extending part and the main body frame;
and step six, connecting the mesh cloth in the caulking groove along the outline of the main body frame, so that the mesh cloth is tightened on the main body frame.
Preferably, the main body frame is made of a metal circular tube, the accessory frame and the main body frame are vertically stacked and fixed, and the connecting portion is welded at the inner edge of the main body frame. The main body frame is a metal round pipe, so that the texture is better; the connecting part is directly welded on the main body frame, so that the connection is convenient, and the structure of the main body frame cannot be damaged.
Preferably, the mesh covers the attachment frame and exposes the main body frame. The mesh covers the accessory frame, so that the accessory frame can be hidden and connecting traces can be eliminated; the main body frame is exposed outside and protrudes the metal texture of the main body frame.
Preferably, the part of the appendage frame near the outer edge is not completely flattened, and a gap exists between the two flattened layers of the part. The arc surface of the outer edge of the appendage frame is smoother, and the area is larger; then this part and screen cloth contact back, can not lacerate the screen cloth, and can also disperse the atress of screen cloth.
Preferably, an elastic insertion strip is sewn on the periphery of the mesh cloth, and the insertion strip is embedded and fixed in the insertion groove; friction exists between the molding and the caulking groove. The filler rod is sewed on the mesh cloth, and the connection is tight and firm; like the barb structure, the structure is stressed and has friction force so that the insertion strip can be firmly limited in the embedding groove.
Preferably, the insertion strip is embedded in the caulking groove in a barb shape relative to the mesh. When the mesh is pulled under force, the embedded strip is close to the inner end of the embedded groove and is abutted against the main body frame so as to limit the embedded strip to be separated from the embedded groove; the outer end of the embedded groove close to the embedded groove is abutted with the accessory body frame to limit the embedded groove to be separated from the embedded groove.
Preferably, the gap of the caulking groove is between 1 and 3 cm. The insertion of the insertion strip is facilitated, and the insertion strip is not easy to slide out.
Preferably, the extension portion extends along a circumferential direction of the main body frame, and an insertion groove formed between the extension portion and the main body frame is an arc-shaped groove. The filler rod is more difficult to slide out.
Preferably, the attachment frame is connected to the main body frame to form a seat frame or a back frame of the seat.
Preferably, the seat frame is a seat frame, wherein the main body frame comprises a first cross rod positioned at the front end and the rear end and a first longitudinal rod positioned at the left side and the right side; the height of the first longitudinal rod is higher than that of the first transverse rod, and the joint of the first longitudinal rod and the first transverse rod is in arc surface transition; in the fourth step, the appendage framework is correspondingly bent to form a second transverse rod and a second longitudinal rod which correspond to the first transverse rod and the first longitudinal rod; and the second longitudinal rod is higher than the second cross rod, and the joint of the second longitudinal rod and the second cross rod is in arc transition. So that the appendage frame can be directly attached to the main body frame.
The design starting point, the concept and the beneficial effect of the invention adopting the technical scheme are that;
1, an accessory frame is additionally arranged on a main body frame, so that an embedded groove for mounting screen cloth is formed between the main body frame and the accessory frame; the main body frame made of metal materials does not need to be additionally processed; the problem that a metal frame structure is difficult to screen is solved, and the screen is convenient and simple to process.
2, after the mesh cloth is connected with the main body frame, the accessory frame is covered in the mesh cloth and is covered by the mesh cloth; the mesh cloth and the main body frame can only be seen by naked eyes, connecting traces are eliminated, the metal texture of the main body frame is highlighted, the whole body is simple and attractive, and the modern aesthetic requirements are met.
3, the accessory frame is pressed into a flat shape by a metal round pipe, so that the inner edge and the outer edge of the accessory frame are provided with arc surfaces; the contact surface of the appendage framework and the screen cloth is a circular arc surface, so that the screen cloth cannot be lacerated; and the part of the accessory frame close to the outer edge is completely flattened, so that the radian of the arc surface of the outer edge of the extension part is larger, the area of the arc surface is larger, and the stress of the mesh cloth can be dispersed.
4, the accessory frame is formed by processing a metal round pipe, and only flattening and stamping flanging treatment is needed; the processing is convenient, a double-layer structure with two flat layers attached up and down can be formed, and the strength is guaranteed; if the metal plate with a certain thickness is adopted for machining and forming, bending, cutting and polishing arc treatment are needed, waste on materials can be caused, undoubtedly, the cost is higher, and the machining process is more complex.
5, after the insertion strip is embedded into the arc-shaped embedding groove; the embedded bar is abutted against the main body frame at the inner end part of the embedded groove to limit the embedded bar to be separated from the embedded groove; the embedded strip is also abutted against the accessory frame at the outer end part of the embedded groove to limit the embedded strip to be separated from the embedded groove; and friction force exists between the embedded strip and the embedded groove; after the embedded strip is embedded into the caulking groove, the connection between the mesh and the main body frame is stable.
Drawings
FIG. 1 is a schematic flow chart illustrating the steps of processing and connecting the appendage frame to the main body frame in an embodiment of the present invention;
FIG. 2 is a schematic cross-sectional view of an appendage frame at a different processing step in an embodiment of the present invention;
FIG. 3 is a schematic perspective view of the connection between the appendage frame and the main body frame in the embodiment of the present invention;
FIG. 4 is a schematic perspective view of the molded seat frame of the present invention;
FIG. 5 is a schematic perspective view of a web of the present invention after joining panels according to embodiments of the present invention;
FIG. 6 is a perspective view of an embodiment of the present invention with molding embedded in the insert groove;
FIG. 7 is a schematic perspective view of an embodiment of the present invention with the appendage frame collapsed;
FIG. 8 is a schematic cross-sectional view of an appendage frame flattened in an embodiment of the present invention.
The figures are numbered: a seat frame 1; a main body frame 2; a first cross bar 2 a; a first vertical bar 2 b; an appendage frame 3; a second cross bar 3 a; a second vertical bar 3 b; 4, screen cloth; a flat layer 5; a connecting portion 6; an extension (7); a caulking groove 8; and a fillet 9.
Detailed Description
In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.
In the description of the present invention, the term "at least one" means one or more than one unless explicitly defined otherwise. The terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
The present invention relates to the use of directional expressions such as front and rear, which are described in the use state in which the user is actually seated on the chair.
The specific embodiment of the invention is as follows:
as shown in fig. 1 to 8, the present invention provides a forming process of a seat frame, which refers to a seat frame or a back frame of a seat, specifically, a seat frame 1 of the seat in the present embodiment; the seat frame 1 specifically comprises a main body frame 2, an accessory frame 3 and a mesh 4. The main body frame 2 is a steel frame structure formed by enclosing metal round tubes, and the metal frame structure can enable the whole seat to have better texture and better supporting strength; the outline of the accessory frame 3 is matched with the main body frame 2, the accessory frame 3 and the main body frame 2 are fixed in a vertically stacked mode, and the mesh cloth 3 is connected to the accessory frame and the main body frame in a collapsing mode.
As shown in fig. 1 and 2, the main production process steps of the seat frame are as follows:
the method comprises the following steps: firstly, manufacturing an accessory frame 3, bending a metal round pipe and enclosing the metal round pipe into the accessory frame 3 basically matched with the outline of the main body frame 2; the accessory frame 3 is made of a metal round pipe, so that the cost is low.
Step two: flattening the enclosed appendage frame 3 to enable the appendage frame 3 to be pressed into a flat shape from a circular tube shape; the flattened auxiliary body frame 3 forms a double-layer structure with two flat layers 5 which are jointed up and down; as shown in fig. 7 and 8, the inner and outer edges of the appendage frame 3 are the transition joints at the left and right ends of the two flat layers 5, and then the inner and outer edges of the appendage frame 3 are both arc surfaces; further, as shown in fig. 8, a portion of the appendage frame 3 near the outer edge is not completely flattened, so that a gap is formed between two flat layers 5 of the portion, and the arc of the arc surface of the outer edge of the portion is larger, and the arc surface area is larger.
Step three: performing stamping and flanging treatment on the flattened appendage frame 3, as shown in fig. 2, stamping the appendage frame 3 by using a die, so that the part of the appendage frame close to the inner edge is bent downwards and forms a connecting part 6 for connecting with the main body frame 2, and correspondingly, the part of the appendage frame close to the outer edge forms an extension part 7; the extension 7 is then not completely collapsed (not shown).
Step four: bending the appendage frame 3 to match the shape of the main body frame 2, as shown in fig. 1 and 3, the main body frame 2 includes a first cross bar 2a located at the front end and the rear end and first longitudinal bars 2b located at the left side and the right side, wherein the height of the first longitudinal bar 2b is higher than that of the first cross bar 2a, and the joint of the first longitudinal bar 2b and the first cross bar 2a is in arc transition; the design ensures that the seat frame 1 has better stereoscopic impression and is more beautiful; the first vertical rods 2b on the left side and the right side are higher, so that a user can sit on the seat more comfortably and the surrounding sense is better; then, bending each side of the appendage frame 3 to form a second cross bar 3a and a second longitudinal bar 3b which are consistent with the length paths of the first cross bar 2a and the first longitudinal bar 2 b; correspondingly, the height of the second vertical rod 3b is higher than that of the second transverse rod 3a, and the joint of the second vertical rod 3b and the second transverse rod 3a is in arc transition; then, the appendage frame 3 can be stacked up and down with the main body frame 2 and the sides can be attached.
Step five: attaching the fabricated appendage frame 3 to the main body frame 2, as shown in fig. 2, the connecting portion 6 of the appendage frame 3 will contact with the inner edge of the main body frame 2, and the extending portion 7 will extend along the circumferential direction of the main body frame 2; the connecting part 6 and the main body frame 2 are welded and fixed, so that the accessory frame 3 and the main body frame 2 are firmly fixed together; the extending part 7 is in a free state relative to the main body frame 2, and an embedding groove 8 for connecting the mesh cloth 4 is formed between the extending part 7 and the main body frame 2. Therefore, the problem that the main body frame 2 is a metal round pipe and the net is difficult to be closed is solved, the surface of the main body frame 2 does not need to be processed, the embedded groove 8 for closing the net can be formed only by welding the accessory frame 3 on the main body frame 2, and the connection is convenient.
Step six: selecting flexible mesh cloth 4, cutting the contour of the mesh cloth 4 into a size matched with the seat frame 1, as shown in figure 5, and sewing a circle of elastic embedded strips 9 on the periphery of the mesh cloth 4; then, the mesh cloth 4 is tightened and covered on the main body frame 2; as shown in fig. 6, the part of the mesh cloth 2 with the insertion strips 9 on the periphery is turned over in sequence and embedded in the caulking grooves 8; after the embedded strips 9 are completely embedded into the embedding grooves 8, the mesh cloth 2 is connected with the main body frame 2; because the caulking groove 8 is an arc-shaped groove, after the insertion strip 9 is embedded into the caulking groove 8, the insertion strip can be elastically deformed correspondingly, so that friction force exists between the insertion strip 9 and the caulking groove 8, and the friction force can limit the insertion strip 9 to slide out of the caulking groove 8; the insertion strip 9 is long-strip-shaped, and the insertion groove 8 is an arc-shaped groove, so that when the mesh cloth 4 is pulled by traction, the insertion strip 9 tends to slide out of the insertion groove 8; at this time, the inner end portion of the molding 9 close to the caulking groove 8 will abut against the main body frame 2 to restrict the molding 9 from escaping from the caulking groove 8, while the outer end portion of the molding 9 close to the caulking groove 8 will abut against the extension portion 7 to also restrict the molding 9 from escaping from the caulking groove 8; similar to the barb structure principle, the embedded groove structure can further effectively prevent the embedded strip 9 from separating from the embedded groove 8, and skillfully apply the structural stress; in the embodiment, the clearance of the caulking groove 8 is between 1 cm and 3cm, and the clearance is small, so that the fillet 9 is not easy to slide out.
Furthermore, the emphasis is on: the accessory frame 2 is made of a metal round pipe through flattening, and has two advantages:
firstly, the inner edge and the outer edge of the appendage frame 2 are both arc surfaces, and then as shown in fig. 6, when the mesh 4 is contacted with the extension part 7 and is stressed to deform, the mesh 4 cannot be lacerated by the appendage frame 2; as shown in fig. 8, the extending portion 7 is not completely flattened, so that the radian of the contact surface between the extending portion 7 and the mesh 4 is larger, the area of the arc surface is larger, and the stress of the mesh 4 can be further dispersed.
The accessory frame 2 is made of a metal round pipe through flattening and is provided with two attached flat layers 5, so that the strength is higher; the metal round pipe material is directly adopted, the cost is low, only flattening and stamping flanging treatment is needed during processing, and the material is not wasted; if a metal plate material with thickness is adopted, the metal plate material needs to be bent, then the two ends of the metal plate material are cut and polished to form circular arcs, the processing success is too high, and the processing technology is more complex.
As shown in fig. 4 and 6, in the connected seat frame 1, the mesh cloth 4 covers the auxiliary body frame 3, and the main body frame 2 is exposed; thereby the appendage frame 3 can be hidden and the connecting trace can be eliminated; only the main body frame 2 is exposed to the outside, and the metal texture of the main body frame 2 is projected.
Claims (10)
1. A process for forming a seat frame, comprising the steps of:
firstly, manufacturing an accessory frame attached to a frame main body, and bending a metal round pipe to form the accessory frame matched with the outline of the main frame;
step two, flattening the enclosed accessory frame to enable the accessory frame to be pressed into a flat shape from a circular tube shape; the flattened accessory frame forms a double-layer structure with two flat layers which are attached up and down, and the inner edge and the outer edge of the accessory frame are both arc surfaces;
thirdly, performing stamping and flanging treatment on the flattened appendage frame to enable the appendage frame to be downwards turned close to the inner edge part and form a connecting part connected with the main body frame, wherein the outer edge part correspondingly forms an extending part;
step four, bending the accessory frame to match the shape of the main body frame, so that the length and the path of each side of the accessory frame are matched with each side of the main body frame;
step five, attaching the accessory frame to the main body frame, and welding and fixing the connecting part of the accessory frame on the main body frame; the extending part is in a free state relative to the main body frame, and an embedding groove for closing a net is formed between the extending part and the main body frame;
and step six, connecting the mesh cloth in the caulking groove along the outline of the main body frame, so that the mesh cloth is tightened on the main body frame.
2. The process for molding a seat frame according to claim 1, wherein: the main body frame is made of a metal round pipe, the accessory frame and the main body frame are fixed in an up-down stacking mode, and the connecting portion is welded at the inner edge of the main body frame.
3. The process for molding a seat frame according to claim 1, wherein: the accessory frame is covered by the mesh cloth, and the main body frame is exposed outside.
4. The process for molding a seat frame according to claim 1, wherein: the part of the appendage frame near the outer edge is not completely flattened, and a gap exists between the two flat layers of the part.
5. The process for molding a seat frame according to claim 1, wherein: elastic insertion strips are sewn on the periphery of the mesh cloth and are embedded and fixed in the insertion grooves; friction exists between the molding and the caulking groove.
6. The process for molding a seat frame according to claim 5, wherein: the embedded strip is embedded in the embedded groove in a barb shape relative to the mesh cloth.
7. The process for molding a seat frame according to claim 1, wherein: the clearance of the caulking groove is between 1 and 3 cm.
8. The process for molding a seat frame according to claim 1, wherein: the extension part extends along the circumferential direction of the main body frame, and an embedded groove formed between the extension part and the main body frame is an arc-shaped groove.
9. The process for molding a seat frame according to claim 1, wherein: the accessory frame and the main body frame are connected to form a seat frame or a back frame of the seat.
10. The process of molding a seat frame according to claim 9, wherein: the seat frame is a seat frame, wherein the main body frame comprises a first cross rod positioned at the front end and the rear end and a first longitudinal rod positioned at the left side and the right side; the height of the first longitudinal rod is higher than that of the first transverse rod, and the joint of the first longitudinal rod and the first transverse rod is in arc surface transition; in the fourth step, the appendage framework is correspondingly bent to form a second transverse rod and a second longitudinal rod which correspond to the first transverse rod and the first longitudinal rod; and the second longitudinal rod is higher than the second cross rod, and the joint of the second longitudinal rod and the second cross rod is in arc transition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110590836.1A CN113441908B (en) | 2021-05-28 | 2021-05-28 | Forming process of seat frame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110590836.1A CN113441908B (en) | 2021-05-28 | 2021-05-28 | Forming process of seat frame |
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| Publication Number | Publication Date |
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| CN113441908A CN113441908A (en) | 2021-09-28 |
| CN113441908B true CN113441908B (en) | 2022-04-29 |
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Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20150232010A1 (en) * | 2012-07-23 | 2015-08-20 | Ts Tech Co., Ltd. | Seatbelt guide support, seat back frame, and seat device |
| CN203692983U (en) * | 2013-12-24 | 2014-07-09 | 廖连仲 | Steel frame mesh fabric chair |
| CN204273842U (en) * | 2014-12-22 | 2015-04-22 | 浙江圣奥家具制造有限公司 | A kind of floor structure of the screen cloth chair back |
| CN204937325U (en) * | 2015-04-24 | 2016-01-06 | 安超 | The Electrical Bicycle bicycle basket that a kind of flattening tubing makes |
| CN207028938U (en) * | 2017-06-20 | 2018-02-23 | 重庆市宏华摩托车制造有限公司 | Novel backrest pipe frame |
| KR20200114940A (en) * | 2019-03-27 | 2020-10-07 | 이재현 | Footrest |
| CN211862317U (en) * | 2020-03-14 | 2020-11-06 | 嘉兴市南湖区永利金属家具厂(普通合伙) | Folding deck chair |
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Denomination of invention: A Forming Process for Seat Frame Effective date of registration: 20231108 Granted publication date: 20220429 Pledgee: Anji Zhejiang rural commercial bank Limited by Share Ltd. Pledgor: UE FURNITURE Co.,Ltd. Registration number: Y2023330002547 |