Chair and frame assembly thereof

Abstract

The utility model discloses a chair. The chair comprises a frame assembly with a first side and a second side which are opposite to each other, the frame assembly comprises a first frame, a second frame, a sheet body and a covering piece. The first frame has a first opening toward the first side. The second frame is connected to the first frame and comprises two opposite fixing parts and a second opening located between the fixing parts. The second opening faces the second side and coincides with the first opening in position. The sheet body is located between the first frame and the second frame and comprises two opposite first areas, two opposite second areas and a third area located between the second areas, each first area is fixed to one fixing part and is adjacent to one second area, and the second areas are jointly pressed by the first frame and the second frame to be bent; the third region is exposed to the first opening and the second opening. The covering member covers the first frame and the second frame, and exposes the first opening, the second opening and the third area. The utility model also discloses a frame assembly of the chair.

Description

TECHNICAL FIELD

[0001] The utility model relates to a chair and frame assembly thereof, in particular to a chair and frame assembly thereof for supporting human body. BACKGROUND

[0002] For people working in the office, a chair with proper size and providing proper human body support is necessary because of the need to sit for a long time. Because of the consideration of heat dissipation, chairs with net set on the frame assembly as the supporting member are more and more common, but with the difference of net stretching way and shape, there are different ways and difficulties in manufacturing, and the durability is also different.

[0003] In the production process of the chair with net as the back supporting member, because the back has complex curved surface amplitude, in order to tighten the net, manual stretching is mostly used, but such way has poor production efficiency and has the possibility of unstable yield with different workers. And because the net is tightened, the members of the back have the opportunity to separate from each other because of the elasticity of the net during or after the net stretching. SUMMARY

[0004] The utility model provides a chair, has good durability and is easy to manufacture.

[0005] The utility model also provides a frame assembly, applied to the chair, has good durability and is easy to manufacture.

[0006] To achieve the above advantages, an embodiment of the utility model provides a chair, comprising: a frame assembly. The frame assembly has opposite first side and second side. The frame assembly comprises: a first frame, a second frame, a sheet body and a cladding member. The first frame has a first opening facing the first side. The second frame is connected to the first frame, and the second frame comprises two opposite fixed parts and a second opening between the fixed parts, the second opening faces the second side, and the position coincides with the first opening. The sheet body is located between the first frame and the second frame, and the sheet body comprises two opposite first areas, two opposite second areas and a third area between the second areas, each first area is fixed to one fixed part and each first area is adjacent to one second area, the second area is bent by the first frame and the second frame, and the third area is exposed to the first opening and the second opening. The cladding member covers the first frame and the second frame.

[0007] In an embodiment of the utility model, the first frame comprises two opposite convex ribs, and the two convex ribs are located on opposite sides of the first opening. The second frame comprises two opposite grooves, each convex rib is adapted to combine each groove and compress the second area.

[0008] In an embodiment of the utility model, the second area covers the convex rib.

[0009] In an embodiment of the present application, the convex rib is provided with a convex part, the groove is provided with a recess corresponding to the convex part, and the sheet body is clamped between the convex part and the recess.

[0010] In an embodiment of the present application, the convex part is a plurality of needles arranged in a row, and the recess is a long groove capable of simultaneously accommodating the needles.

[0011] In an embodiment of the present application, the sheet body is a net, and the diameters of the needles are equal to the size of the mesh openings of the net.

[0012] In an embodiment of the present application, the first frame and the second frame are provided with a plurality of grooves on the side surface away from the sheet body.

[0013] In an embodiment of the present application, the first frame is provided with a first through hole, the second frame is provided with a second through hole, the position of the first through hole corresponds to the position of the second through hole, and the covering member extends from the first side to the second side through the first through hole and the second through hole.

[0014] In an embodiment of the present application, each of the first regions is surrounded by a second region, and the fixing part is away from the outer periphery of the second frame.

[0015] In an embodiment of the present application, the fixing part is provided with a third through hole, the first frame is provided with a fourth through hole, the position of the third through hole corresponds to the position of the fourth through hole, and the sheet body has a through hole corresponding to the positions of the third through hole and the fourth through hole in the first region.

[0016] In an embodiment of the present application, the two second regions are located between the two first regions, and the fixing part protrudes from the outer periphery of the second frame.

[0017] In an embodiment of the present application, the fixing part is provided with a plurality of positioning stakes, and the positioning stakes pass through the first region.

[0018] In an embodiment of the present application, the covering member comprises an elastic part and a protective layer. The elastic part covers the first frame and the second frame. The protective layer covers the elastic part.

[0019] The present application also provides a chair having opposite first and second sides, and a frame assembly comprising a first frame, a second frame, a sheet body and a covering member. The first frame has a first opening facing the first side. The second frame is connected to the first frame and comprises a second opening located in the center, the second opening facing the second side and overlapping the first opening. The sheet body is located between the first frame and the second frame and comprises two opposite first regions, two opposite second regions and a third region between the second regions, and each first region is adjacent to one second region. The second regions are bent by the first frame and the second frame. The third region is exposed to the first opening and the second opening. The covering member covers the first frame and the second frame.

[0020] The utility model provides a frame assembly, be applicable to chair, and have opposite first side and second side, frame assembly includes: first frame, second frame, piece and cladding piece. First frame has a first opening to the first side. Second frame is connected to first frame, and second frame includes opposite two fixed parts and second opening between fixed parts, and second opening is to the second side, and position coincides with first opening. Piece is between first frame and second frame, and piece includes opposite two first areas, opposite two second areas and third area between second areas, and first area each adjoins a second area. First area each is fixed to a fixed part. Second area is oppressed and bent under first frame and second frame. Third area is in first opening and second opening. Cladding piece clads first frame and second frame.

[0021] Through above-mentioned, the utility model discloses chair and frame assembly thereof. Because when combining, can first fixed first area of piece outermost on fixed part of second frame, then through the combination of first frame and second frame to oppress and bend second area around first area, make third area of piece central be supported by the tension of second area and form the part of frame assembly suitable for providing human body support. Through above-mentioned structure, can utilize first fixed piece on fixed part, then combine first frame and second frame while stretching piece mode, make the shape of piece after stretching conform to complex curve shape, realize the automatic production of part. In addition, because using cladding piece clads first frame and second frame by two sides and clamps piece, therefore, in addition to can be used as buffer piece to provide human body support, can also avoid first frame and second frame because of the separating of the acting force of piece, increase the strength of structure and maintain the tightness of piece by cladding first frame and second frame simultaneously.

[0022] The above description is only a summary of the technical scheme of the utility model, in order to more clearly understand the technical means of the utility model, which can be implemented according to the content of the specification, and in order to let the above and other purposes, characteristics and advantages of the utility model can be more obvious and easy to understand, the following preferred embodiments are taken, and the detailed description is as follows. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is the schematic diagram of chair of an embodiment of the utility model;

[0024] Figure 2 It is Figure 1 In the embodiment, the exploded view of frame assembly;

[0025] Figure 3 It is Figure 2 The cross-sectional view of A-A section line in the embodiment;

[0026] Figure 4 It is Figure 2In an embodiment, a combined process diagram of the frame assembly;

[0027] Figure 5 In Figure 2 In a cross-sectional view of B-B;

[0028] Figure 6 In an exploded view of the frame assembly of another embodiment of the present application;

[0029] Figure 7 In Figure 6 In a cross-sectional view of the frame assembly;

[0030] Figure 8 In an exploded view of the frame assembly of another embodiment of the present application;

[0031] Figure 9 In Figure 8 In a view of the second frame of an embodiment;

[0032] Figure 10 In Figure 8 In a partial enlarged view of the A portion of the second frame of an embodiment;

[0033] Figure 11 In a view of the sheet of Figure 8 In a view of the sheet of Figure 6 In a view of the sheet of an embodiment;

[0034] Figure 12 In Figure 8 In a partial enlarged view of the B portion corresponding to the A portion of the first frame of an embodiment;

[0035] Figure 13 In a back view of the B portion corresponding to the A portion. DETAILED DESCRIPTION

[0036] In the following articles, the terms used in the description of the embodiments according to the present application, such as "upper", "lower", and the like, are indicative of the orientation or positional relationship described in the drawings shown, and the above terms are only for the convenience of describing the present application, and are not a limitation on the present application, i.e., not indicative or suggestive of the elements mentioned must have a specific orientation, or be constructed in a specific orientation. In addition, the terms "first", "second", etc. mentioned in the specification or the scope of the application are only used to name the elements or to distinguish different embodiments or ranges, and are not used to limit the upper or lower limit of the number of elements.

[0037] Figure 1 In a view of the chair of an embodiment of the present application. Figure 2 In Figure 1 In an exploded view of the frame assembly of an embodiment.Figure 3 For Figure 2 A cross-sectional view of the A-A line in FIG. 1. For the sake of clarity, the detailed relevant structures are shown, and the frame assembly 2 is symmetrical in shape, so Figure 2 The shape of the frame assembly 2 in FIG. 1 is simplified without corresponding Figure 1 The shape of the frame assembly 2 in FIG. 1, and Figure 3 Only the cross-sectional view of one side of the part is drawn.

[0038] As Figure 1 shown in FIG. 1, the chair 1 in an embodiment includes: a frame assembly 2. As Figure 2 and Figure 3 shown, the frame assembly 2 has opposite first and second sides S1 and S2. The frame assembly 2 includes: a first frame 21, a second frame 22, a sheet 23, and a cladding 24 (see Figure 3 ). The first frame 21 has a first opening 210 facing the first side S1. The second frame 22 is connected to the first frame 21, and the second frame 22 includes two opposite fixed portions 227 and a second opening 220 between the fixed portions 227, the second opening 220 facing the second side S2, and the position coincides with the first opening 210. The sheet 23 is located between the first frame 21 and the second frame 22, and the sheet 23 includes two opposite first regions 231, two opposite second regions 232, and a third region 233 between the second regions 232, the first regions 231 are each fixed to one of the fixed portions 227 and each abuts one of the second regions 232, the second regions 232 are bent by the first frame 21 and the second frame 22, and the third region 233 is exposed to the first opening 210 and the second opening 220. The cladding 24 covers the first frame 21 and the second frame 22.

[0039] Specifically, in this embodiment, the chair 1 has, for example, a base 11, a seat cushion 12, a back cushion 13, and a headrest 14. The base 11 is, for example, located at the bottom of the chair 1 and is adapted to support other components of the chair 1. The seat cushion 12 is, for example, connected to the top of the base 11 and is adapted to support the hips of the human body. The back cushion 13 is, for example, connected to the base 11 and adjacent to one side of the seat cushion 12, and is adapted to support the back of the human body, and the headrest 14 is, for example, connected to the top end of the back cushion 13, and is adapted to support the head of the human body. Since the structure of the chair 1 is not limited, in other embodiments not shown in the figure, the chair 1 can only have part of the base 11 and the seat cushion 12.

[0040] In this embodiment, the frame assembly 2 is applied to the back cushion 13, for example. In different embodiments, the frame assembly 2 can be applied to any one of the seat cushion 12, the back cushion 13, and the headrest 14 of the chair 1 or to other components not shown such as a foot pedal. In embodiments in which the design of the handle is different from this embodiment, the frame assembly 2 can also be applied to the handle.

[0041] Specifically, asFigures 2 to 4 As shown, the first frame 21 includes, for example, a first protruding rib 211 and a first groove 212. The direction in which the first protruding rib 211 faces is parallel to the direction in which the first opening 210 faces, and the first protruding rib 211 extends along the direction of the first frame 21 to form a ring. The first groove 212 is located, for example, on the back side of the first protruding rib 211 and surrounds the entire first opening 210. The first groove 212 has mutually parallel wall surfaces 212a and 212b. Wall surface 212a is close to the first opening 210, and wall surface 212b is away from the second opening 220. The bottom of the first groove 212 forms the top 211a of the first protruding rib 211, making the cross-section of the first frame 21 U-shaped, but the cross-sectional shape of the first frame 21 is not limited to this. The material of the first frame 21 is, for example, plastic, but is not limited to this.

[0042] like Figures 2 to 4 As shown, in detail, the first frame 21 may include, for example, two first flanges 213, a plurality of protrusions 214, and a plurality of first through holes 215, but is not limited thereto, and the above structure may be provided as needed. The two first flanges 213 are respectively located on the left and right sides of the opening of the first groove 212, one of which is connected to the wall surface 212a and adjacent to the first opening 210, and the other first flange 213 is connected to the wall surface 212b and surrounds the outer periphery of the first frame 21, but the specific design of the first flanges 213 is not limited thereto. The first flanges 213 are adapted to prevent the first frame 21 from deforming at the first groove 212 or the first opening 210 when the first frame 21 is combined with the second frame 22.

[0043] The protrusion 214 is located at the top 211a of the first rib 211, and its shape is, for example, cylindrical, and its length is, for example, the wall thickness corresponding to the top 221a of the second frame 22, but its shape is not limited thereto. The extension direction of the protrusion 214 is, for example, parallel to the orientation direction of the first opening 210.

[0044] The first perforation 215 is located at the top 211a of the first rib 211 and on one side of the protrusion 214. Its shape is not limited, for example, it is a rectangular hole, but is not limited thereto. The opening direction of the first perforation 215 is, for example, parallel to the orientation direction of the first opening 210.

[0045] like Figures 2 to 4As shown, the second frame 22 is similar in shape to the first frame 21, and the size of the second opening 220 is, for example, the same as the size of the first opening 210. In this embodiment, the second frame 22 includes, for example, a second rib 221 and a second groove 222. The direction in which the second rib 221 faces is parallel to the direction in which the second opening 220 faces, and the second rib 221 extends along the direction of the second frame 22 to form a ring. The second groove 222 is located, for example, on the back side of the second rib 221 and surrounds the entire second opening 220. The second groove 222 has mutually parallel wall surfaces 222a and 222b. Wall surface 222a is close to the second opening 220, and wall surface 222b is away from the second opening 220. The bottom of the second groove 222 forms the top 221a of the second rib 221, making the cross-section of the second frame 22 U-shaped, but the cross-sectional shape of the second frame 22 is not limited to this. The material of the second frame 22 is, for example, plastic, but is not limited to this.

[0046] like Figures 2 to 4 As shown, the second frame 22 includes two second flanges 223, multiple recesses 224, multiple second perforations 225, and two reinforcing ribs 226. The two second flanges 223 are located on the left and right sides of the opening of the second groove 222. One of the second flanges 223 is connected to the wall surface 222a and adjacent to the second opening 220, while the other second flange 223 is connected to the wall surface 222b and surrounds the outer periphery of the second frame 22. When assembled, it clamps the sheet 23 together with the first flange 213. However, the specific position and design of the second flange 223 are not limited to this. In embodiments not shown in the figure, the surface position of the third region 233 on the sheet 23 can be changed by adjusting the shape design of the second flange 223, for example, making it cut flat to the surface of the first frame 21. The second flange 223 is also suitable for preventing deformation of the second frame 22 at the second groove 222 or the second opening 220 when the second frame 22 is assembled with the first frame 21.

[0047] The recess 224 is located at the top of the second rib 221 and its position corresponds to the position of the protrusion 214 on the first frame 21. The shape of the recess 224 is, for example, a circular through hole corresponding to the shape of the protrusion 214, but is not limited thereto. The depth of the recess 224 is, for example, corresponding to the length of the protrusion 214. The extending direction of the recess 224 is, for example, parallel to the orientation direction of the second opening 220.

[0048] The second perforation 225 is located at the top 221a of the second rib 221 and on one side of the recess 224. Its shape is not limited, for example, it can be a rectangular hole, but is not limited thereto; therefore, the shape of the second perforation 225 can differ from that of the first perforation 215. The position of the second perforation 225 is, for example, corresponding to the position of the first perforation 215, but is not limited thereto. The opening direction of the second perforation 225 is, for example, parallel to the orientation direction of the second opening 220.

[0049] Two reinforcing ribs 226 are located on the top 221a of the second protruding rib 221, and are parallel to each other and located on different side edges of the top 221a, respectively, and extend towards the direction away from the second flange 223.

[0050] As shown in Figures 2 to 4 , the two fixing portions 227 on the second frame 22 are, for example, connected to the second flange 223 on the opposite sides away from the first opening 210 (i.e. on the outer periphery of the second frame 22), respectively. In this embodiment, the fixing portion 227 is, for example, composed of a plurality of lugs protruding on the second flange 223 at intervals, but is not limited thereto (see the embodiments described later in Figure 6 and Figure 8 ). These lugs protrude from the second frame 22 in the direction away from the second opening 220, and a plurality of positioning stakes 227a are provided on each lug, which are adapted to pierce the first area 231 on the sheet 23 to position the relative positions of the sheet 23 and the second frame 22 when the second frame 22 and the sheet 23 are combined. The direction of the positioning stakes 227a is not limited, for example, towards the second side S2, but is not limited thereto. The detailed shape of the fixing portion 227 and the design of how the fixing portion 227 fixes the sheet 23 are not limited, and can be set according to the shape required.

[0051] As shown in Figures 2 to 4 , the shape of the sheet 23 is, for example, capable of completely covering the first opening 210 and the second opening 220 when the first frame 21 and the second frame 22 are combined. In this embodiment, the sheet 23 is, for example, a net that is elastic and stretchable, but in the embodiments not shown in the figure, the sheet 23 can be a film without holes, which can be selected as required. The first area 231, the second area 232 and the third area 233 on the sheet 23 are determined by the relative positions between the sheet 23 and the second frame 22 and the fixing portion 227 on the second frame 22 when the sheet 23 and the first frame 21, the second frame 22 are combined, as follows.

[0052] Specifically, as shown in Figure 4 , when the first frame 21, the second frame 22 and the sheet 23 are combined, for example, the two ends of the sheet 23 (i.e. the part of the first area 231) are first fixed to the fixing portion 227 on the second frame 22, and a part of the sheet 23 is covered on the second groove 222, and another part of the sheet 23 is covered on the second opening 220.

[0053] Then, the first frame 21 and the second frame 22 are, for example, superimposed on each other along the axis of the opening direction of the first opening 210 (and the second opening 220), and the first protruding rib 211 of the first frame 21 is embedded in the second groove 222 of the second frame 22 (see Figure 3). Since both ends of the sheet 23 are connected to the opposite fixing portions 227 on the outer periphery of the second groove 222, during the assembly process, the portion of the sheet 23 originally covering the second groove 222 will be pushed into the first groove 212 by the first frame 21 and be stretched (this portion is the second region 232). Meanwhile, since the portion of the sheet 23 covering the second groove 222 (the second region 232) and the portion of the sheet 23 covering the second opening 220 (the third region 233) are not fixed by other means, when the second region 232 is stretched, the third region 233 in the center of the sheet 23 is also indirectly stretched and stretched over the second opening 220 (and the first opening 210). In terms of direction, because the first frame 21 and the second frame 22 in this embodiment are annular members, the second region 232 is annular, so after being stretched, the direction of the tension force acting on the third region 233 of the sheet 23 has no specific direction, but this is not limited.

[0054] It can be understood from the above description that in this embodiment, before the first frame 21 and the second frame 22 are assembled, the sheet 23 can be temporarily attached to the second frame 22 (partially connected to the second frame 23 by the first region 231), and then attached to the second frame 22 after the first frame 21 and the second frame 22 are assembled. This process can be performed without manual operation and without using adhesive, but this is not limited.

[0055] As shown in Figure 3 , in this embodiment, when the second region 232 of the sheet 23 is clamped between the first frame 21 and the second frame 22, part of the second region 232 is located on both sides of the first rib 211 and covers the wall surfaces 211a and 211b, and part of the second region 232 covers the top 221a of the first rib 211 and forms a U-shaped portion. Among them, the portion of the sheet 23 covering the top 221a of the first rib 211 and covering the protrusion 214 will enter the recess 224 on the first rib 211 together with the protrusion 214 when the first frame 21 and the second frame 22 are assembled. As shown in Figure 3 , in this embodiment, when the protrusion 214 enters the recess 224, the protrusion 214 does not pierce the sheet 23, so the sheet 23 can be considered to be clamped and fixed by the protrusion 214 and the side wall of the recess 224. However, in the embodiment described below Figure 8 , the protrusion 214 can pierce the sheet 23 to fix the sheet 23. Since the sheet 23 is mainly positioned by the clamped second region 232 after the first frame 21 and the second frame 22 are clamped, the damage to the sheet 23 on the first region 231 will not affect the portion of the sheet 23 on the third region 233 after the first frame 21 and the second frame 22 are assembled.

[0056] From the above description, it can be understood that the first region 231 on the sheet 23 can be regarded as a portion of the sheet 23 used to connect with the fixing portion 227 of the second frame 22. The second region 232 can be regarded as a portion of the sheet 23 which is simultaneously contacted, extruded, stretched and clamped by the wall surfaces (the wall surfaces 212a, 212b, the wall surfaces 222a, 222b, the top portion 211a and the top portion 221a) of the first frame 21 and the second frame 22. The third region 233 can be regarded as a portion of the sheet 23 which is stretched by the first frame 21 and the second frame 22 but not contacted by the first frame 21 and the second frame 22. Therefore, the detailed shape of the first region 231, the second region 232 and the third region 233 on the sheet 23 can be determined according to the design of the first frame 21 and the second frame 22, and there is no particular limitation on the shape. In other words, although the second region 232 is annular in the above embodiment, in an embodiment in which the shape of one or both of the first frame 21 and the second frame 22 is changed to a U-shaped member, the second region 232 on the sheet 23 can be a U-shaped region or two opposite elongated regions on the two sides, and the two second regions 232 on the two sides are located between the two first regions 231 on the two sides.

[0057] From the design of the shape of the first frame 21 and the second frame 22, since only the sheet 23 needs to be stretched when combined with the first frame 21 and the second frame 22 and has sufficient tension in the third region 233, in an embodiment not shown in the figure, the shape of one of the first frame 21 and the second frame 22 can be simplified to a U-shaped member, and it is not necessary to be a complete annular member as described above. In other words, in an embodiment, the first frame 21 includes two opposite convex ribs (corresponding to the first convex rib 211 described above) on opposite sides of the first opening 210, and the second frame 22 includes two opposite grooves (corresponding to the second groove 222 described above), each convex rib is adapted to combine with each groove and press the second region 232 on the sheet 23 between the first frame 21 and the second frame 22. In addition, in another embodiment not shown in the figure, the first frame 21 can be designed as an inner frame clamped on the inner wall surface (the wall surface 222a) of the second opening 220 of the second frame 22, and therefore in the embodiment not shown in the figure, the second frame 22 does not need the second groove 222.

[0058] As Figure 3As shown, in the present embodiment, the cover 24 is a member that covers the entire first frame 21 and the entire second frame 22, but does not cover the third region 233 of the sheet 23, but is not limited thereto. In the present embodiment, the cover 24 includes an elastic portion 241 and a protective layer 242. The elastic portion 241 is a member that covers the entire first frame 21 and the entire second frame 22 (including the fixing portion 227), and is, for example, foam or other foamed material, but is not limited thereto. The protective layer 242 is a layer that covers the entire elastic portion 241, but the protective layer 242 can also be a layer that covers only a portion of the elastic portion 241. In terms of material, the protective layer 242 is, for example, rubber or other wear-resistant or weather-resistant material, which can be set as required.

[0059] In manufacturing the frame assembly 2 of the present embodiment, the sheet 23 can be first connected to the fixing portion 227 of the second frame 22, and then the assembly of the second frame 22 and the sheet 23 is combined with the first frame 21, and finally the three are placed in a cavity of a mold (not shown), and the cover 24 is formed by injecting the material of the cover into the cavity. There is no limitation on the order of manufacturing the protective layer 242 and the elastic portion 241, but for example, the protective layer 242 (or the material thereof) can be first set on the wall surface of the cavity of the mold, and then the member composed of the first frame 21, the second frame 22, and the sheet 23 is set in the mold, and then the material (foamed material described later) of the elastic portion 241 is injected into the cavity to manufacture the frame assembly 2.

[0060] As can be seen from the above, in the manufacturing process of the frame assembly 2 of the present embodiment, because the sheet 23 can be first connected and positioned to the second frame 22 through the fixing portion 227, when the first frame 21, the second frame 22, and the sheet 23 are combined, no additional fixing device is needed to fix the relative relationship between the second frame 22 and the sheet 23, and the second frame 22 and the sheet 23 can be directly combined temporarily, and then the first frame 21 and the second frame 22 are combined in position to fix the sheet 23. Moreover, because the entire first frame 21 and the entire second frame 22 are then covered by the cover 24, the first frame 21 and the second frame 22 can be prevented from easily separating when the frame assembly 2 is impacted.

[0061] As shown in FIGS. Figure 2 and Figure 5 As shown, in the present embodiment, the position of the first perforation 215 corresponds to the position of the second perforation 225, and the sheet 23 is a mesh having holes, and the cover 24 includes foamed material (to form the elastic portion 241), so in the present embodiment, a portion of the foamed material can pass through the first perforation 215, the holes (not shown) on the sheet 23, and the second perforation 225 to communicate from the first side S1 to the second side S2 of the frame assembly 2. From one point of view, it can be considered that the cover 24 rivets the first frame 21 and the second frame 22 at the communication of the first perforation 215 and the second perforation 225.

[0062] Figure 6 Figure 8 is a disassembled view of the frame assembly according to another embodiment of the present application. Figure 7 Figure 6 Figure 9 is a cross-sectional view of the frame assembly according to the embodiment of Figure 8. Figure 6 Figure 2 Figure 7 Figure 7

[0063] Hereinafter, similar components are omitted in the following description. Figure 6 Figure 7 Figure 6 Figure 7 Figure 2 Figure 1

[0064] Figure 6 Figure 7

[0065] Figure 6 7 Figure 7

[0066] ​​​​​​​​​​​​​​​​​​Furthermore, it should be understood that the description of the manufacturing method of the frame assembly 2 in the foregoing paragraphs is merely an example. In embodiments not shown in the figures, the second frame 22 may not have a fixing portion 227 provided at the periphery, and for example, a protrusion 214 in the second groove 222 with an extension length greater than the depth of the second groove 222 may be used to temporarily fix the sheet 23 (this type of protrusion 214 can be regarded as another type of fixing portion 227).

[0067] Alternatively, in other embodiments, for example, a positioning pin (not shown) may be provided in the mold, which can pass through the perforation and through the sheet to temporarily align the sheet with the second frame. This positioning pin can be removed after the first and second frames are engaged to clamp the sheet and before the manufacturing of the cover. See the following embodiments for details.

[0068] Figure 8 This is an exploded view of the frame assembly, representing another embodiment of the present invention. Figure 9 for Figure 8 A schematic diagram of the second frame in the embodiment. Figure 10 for Figure 8 A partially enlarged schematic diagram of part A of the second frame in the embodiment. Figure 11 For comparison Figure 8 Examples and Figure 6 A schematic diagram of the sheet body in the embodiment. The shape of the covering 34 is shown below for clarity. Figure 8 The covering component 34, which covers both the first frame 31 and the second frame 32 during assembly, is also shown in the figure. For details, please refer to the aforementioned embodiment. Figure 3 or Figure 5 Please refer to this. Figures 8 to 10 As shown, in this embodiment, the shapes of the first frame 31 and the second frame 32 are, for example, roughly similar to Figure 6 The first frame 21 and the second socket 22 of the embodiment have a first rib 311 and a second groove 322 respectively. The following description focuses only on the differences.

[0069] like Figure 8 As shown, in this embodiment, in addition to the first frame 31 and the second frame 32 having similar features to those described above... Figure 6 In addition to the first through hole 315 and the second through hole 325 of the first through hole 215 and the second through hole 225 in the embodiment, the second frame 32 is further provided with a plurality of fixing holes 321 penetrating the second frame 32. These fixing holes 321 are suitable for fixing to the support member (not shown) connecting the seat cushion 12 and the back cushion 13 of the chair 1. And the covering member 34 has holes (not shown) corresponding to the positions of the fixing holes 321.

[0070] There are no limitations on the shape of the fixing part or the method of fixing the sheet body by the fixing part in this utility model. Figures 8 to 10As shown, in the present embodiment, the fixing portion 327 is disposed in the second recess 322 of the second frame 32. The fixing portion 327 is, for example, a protrusion disposed in the second recess 322 and protruding toward the first frame 31.

[0071] As shown, in the present embodiment, the fixing portion 327 is disposed in the second recess 322 of the second frame 32. The fixing portion 327 is, for example, a protrusion disposed in the second recess 322 and protruding toward the first frame 31. Figure 10 As shown, in the present embodiment, the fixing portion 327 is disposed in the second recess 322 of the second frame 32. The fixing portion 327 is, for example, a protrusion disposed in the second recess 322 and protruding toward the first frame 31. Figure 10 As shown, in the present embodiment, the fixing portion 327 is disposed in the second recess 322 of the second frame 32. The fixing portion 327 is, for example, a protrusion disposed in the second recess 322 and protruding toward the first frame 31.

[0072] Figure 12 As shown, in the present embodiment, the fixing portion 327 is disposed in the second recess 322 of the second frame 32. The fixing portion 327 is, for example, a protrusion disposed in the second recess 322 and protruding toward the first frame 31. Figure 8 As shown, in the present embodiment, the fixing portion 327 is disposed in the second recess 322 of the second frame 32. The fixing portion 327 is, for example, a protrusion disposed in the second recess 322 and protruding toward the first frame 31. Figure 12 As shown, in the present embodiment, the fixing portion 327 is disposed in the second recess 322 of the second frame 32. The fixing portion 327 is, for example, a protrusion disposed in the second recess 322 and protruding toward the first frame 31.

[0073] As shown, in the present embodiment, the fixing portion 327 is disposed in the second recess 322 of the second frame 32. The fixing portion 327 is, for example, a protrusion disposed in the second recess 322 and protruding toward the first frame 31. Figure 11 As shown, in the present embodiment, the fixing portion 327 is disposed in the second recess 322 of the second frame 32. The fixing portion 327 is, for example, a protrusion disposed in the second recess 322 and protruding toward the first frame 31. Figure 6 As shown, in the present embodiment, the fixing portion 327 is disposed in the second recess 322 of the second frame 32. The fixing portion 327 is, for example, a protrusion disposed in the second recess 322 and protruding toward the first frame 31.

[0074] As shown, in the present embodiment, the fixing portion 327 is disposed in the second recess 322 of the second frame 32. The fixing portion 327 is, for example, a protrusion disposed in the second recess 322 and protruding toward the first frame 31.Figure 10 and Figure 11 As shown, due to the change in the shape of the fixing part 327 and the position of the first region 331 in this embodiment, when the first frame 31 and the second frame 32 are combined, the first region 331 of the sheet 33 corresponding to the position of the fixing part 327 is stretched not only in the second direction D2, but also in the direction along the first direction D1. Furthermore, because the fixing part 327 (protrusion) causes the depth of the second groove 322 to become shallower, in this embodiment, the elongation of the sheet 33 in the first region 331 in the second direction D2 is less than the elongation of the sheet 33 in the second region 332 in the second direction D2.

[0075] like Figures 8 to 12 As shown, in this embodiment, the recess 316 has, for example, a fourth through hole 316a at the position corresponding to the third through hole 327a. With this design, during manufacturing, the second frame 32 can be positioned in the mold by a positioning pin passing through the third through hole 327a on the fixing part 327, and the positioning pin can pass through the plate 33 before the second frame 32 is assembled with the first frame 31, through the third through hole 327a and the through hole 331a on the plate 33 (see...). Figure 11 First, determine the relationship between the second frame 32 and the sheet 33. The through hole 331a can be a hole originally provided on the sheet 33, or a hole created by the piercing of the aligning pin during assembly. Next, align the second frame 32, the first frame 31, and the sheet 33 by aligning the fourth through hole 316a with the aligning pin. This aligning pin can be removed after the first frame 31 and the second frame 32 are combined to clamp and position the sheet 33.

[0076] After removing the locating pin, the hole formed by the third through hole 327a and the fourth through hole 316a can be combined with other components to increase the connection strength between the first frame 31 and the second frame 32. Specifically, in this embodiment, the fourth through hole 316a is, for example, a tapered hole that tapers towards the second frame 32. The hole formed by the third through hole 327a and the fourth through hole 316a is suitable for a screw (not shown) to pass through. In this embodiment, because the fixing part 327 protrudes towards the first frame 31 and has a relatively thick thickness, the screw and the third through hole 327a can have a large contact area, which can achieve a stable fixation of the screw.

[0077] In the embodiment not shown in the figure, the hole formed by the third perforation 327a and the fourth perforation 316a can be referred to the description of the first perforation 215 and the second perforation 225 above, so that the foam material used to form the elastic part 241 can be inserted, and the positions of the fixing part 327 and the recess 316 can be interchanged.

[0078] Based on the above Figure 2 , Figure 6 and Figure 8The connection between the fixed portion and the first area of the sheet body is not particularly limited, and in an embodiment not shown in the drawings, the second frame can be connected to the sheet body by applying hot melt glue on the fixed portion.

[0079] In addition, please refer to Figure 9 and Figure 10 In the present embodiment, the protrusions 324 are also provided in the second groove 322, and are spaced apart from the fixed portion 327 and the wall surface of the second groove 322. The protrusions 324 are, for example, a plurality of needles arranged in a row, as shown in Figure 12 The recess 314 corresponding to the protrusions 324 is, for example, a single long groove capable of simultaneously accommodating the plurality of needles. The arrangement direction of the protrusions 324 is, for example, parallel to the first direction D1. The size of the recess 314 is, for example, corresponding to the size of the protrusions 324, and is capable of simultaneously accommodating the plurality of needles of the protrusions 324. In the present embodiment, the length of each needle is, for example, less than the depth of the second groove 322. This allows the second frame 32 to be positioned with the sheet body 33 in advance before being combined with the first frame 31, but is not particularly limited.

[0080] As mentioned above, the sheet body 33 in the present embodiment is also a mesh, and the diameter of each needle of the protrusions 324 is, for example, equal to the size of the mesh openings of the mesh, so that the sheet body 33 can be directly penetrated without being stretched when the first frame and the second frame 32 are combined. It can be understood that in an embodiment not shown in the drawings, the protrusions 324 can be replaced by a plurality of cones, and the long groove can be replaced by a plurality of holes arranged in a row.

[0081] Figure 13 It is a back view of the B part of the A part. Please refer to Figure 13 In the present embodiment, the surfaces of the first frame 31 and the second frame 32 are, for example, provided with a plurality of grooves 30a on the side surface away from the sheet body 33 (for clarity, only part of the grooves 30a on the first frame 31 are shown in Figure 13 The extension direction of the grooves 30a is, for example, inclined to the extension direction of the first frame 31 and the second frame 32 (please refer to the first direction D1). In an embodiment not shown in the drawings, the grooves 30a can extend along the first direction D1. In addition to increasing the surface area between the elastic portion (not shown in the drawings, please refer to the position of the elastic portion 241 in the aforementioned embodiment) of the cover member 34 and the first frame 31 and the second frame 32, so that the cover member 34 is more difficult to separate from the first frame 31 and the second frame 32, the grooves 30a can increase the moving speed of the foaming material in the mold and on the surface of the first frame 31 and the second frame 32 when the foaming material is injected into the mold, so that the foaming material is more easily injected into the first to fourth perforations 315, 316a.

[0082] AsFigure 8 As shown, in this embodiment, the frame assembly 2 includes, for example, a first side S1 and a second side S2 opposite to each other. When the semi-finished frame assembly 2 is placed in the mold, the foaming material is injected into the mold cavity of the mold from the part near the first side S1 to form a covering 34.

[0083] like Figure 8 and Figure 9 As shown, in this embodiment, the second frame 32 forms a first notch 320a on the second side S2 of the second opening 320, and the first notch 320a is recessed along the second direction D2 toward a direction away from the first side S1. The first frame 31 also has a second notch 310a at a corresponding position, corresponding to the position and shape of the first notch 320a. This can increase the flow rate of the foamed material at the end of the mold cavity when it is injected into the mold, thereby increasing the production yield of the covering part 34.

[0084] like Figure 8 As shown, in this embodiment, different side portions of the cover 34 may have different cross-sectional areas, but this is not a limitation. Specifically, the cover 34 may have a larger cross-sectional area (coarser) on the first side S1 compared to the other portions of the cover 34, and a smaller cross-sectional area (finer) on the second side S2 compared to the other portions of the cover 34, which can improve production yield.

[0085] Based on the above description, this utility model relates to a chair and its frame assembly. During assembly, the outermost first section of the panel can be fixed to the fixing part of the second frame. Then, the combination of the first and second frames compresses and bends the second section surrounded by the first section, causing the third section in the center of the panel to be stretched by the tension from the second section, forming a part of the frame assembly suitable for providing human support. Through this structure, by first fixing the panel to the fixing part and then combining the first and second frames while simultaneously stretching the panel, the shape of the stretched panel can conform to complex curved shapes, achieving automated production of the parts. Furthermore, because a covering is used to cover the first and second frames that clamp the panel from both sides, the covering not only acts as a cushioning element to provide human support but also prevents the first and second frames from separating due to the forces generated by the panel by simultaneously covering them, increasing structural strength and maintaining the tautness of the panel.

[0086] The above merely describes preferred embodiments of the present application and is not intended to limit the present application in any form. Although the present application has been disclosed with preferred embodiments, it is not intended to limit the present application. Any skilled person in the art can make some changes or modifications to the disclosed methods and technical contents to obtain equivalent embodiments with equivalent changes, without departing from the technical solution of the present application. Any simple modification, equivalent change and modification of the above embodiments, which do not depart from the technical solution of the present application, are still within the scope of the present application.

Claims

1. A chair, characterized in that The frame assembly comprises a first frame, a second frame, a sheet, and a covering, wherein: the first frame has a first opening facing the first side; the second frame is connected to the first frame, the second frame comprises two opposite fixing portions and a second opening between the fixing portions, the second opening faces the second side and is coincident with the first opening; the sheet is between the first frame and the second frame, the sheet comprises two opposite first regions, two opposite second regions and a third region between the second regions, the first regions are respectively fixed to one of the fixing portions and respectively adjacent to one of the second regions, the second regions are bent by the first frame and the second frame, and the third region is exposed to the first opening and the second opening; and the covering covers the first frame and the second frame. The first frame comprises two opposite protruding ribs on opposite sides of the first opening, the second frame comprises two opposite grooves, each of the protruding ribs is adapted to combine each of the grooves and press the second regions.

2. The chair of claim 1, wherein, The second regions cover the protruding ribs.

3. The chair of claim 2, wherein, At least one protrusion is provided on the protruding ribs, and at least one recess corresponding to the at least one protrusion is provided in the grooves, and the sheet is clamped between the at least one protrusion and the at least one recess.

4. The chair of claim 3, wherein, The at least one protrusion is a plurality of needles arranged in a row, and the recess is a long slot capable of accommodating the needles.

5. The chair of claim 4, wherein, The sheet is a mesh, and the diameter of the needles is equal to the size of the mesh opening of the mesh.

6. The chair of claim 5, wherein, The first frame and the second frame are provided with a plurality of grooves on the side surface away from the sheet.

7. The chair of claim 1, wherein, The first frame is provided with a first through hole, the second frame is provided with a second through hole, the position of the first through hole corresponds to the position of the second through hole, and the covering extends from the first side to the second side through the first through hole and the second through hole.

8. The chair of claim 1, wherein, Each of the first regions is surrounded by one of the second regions, and the fixing portions are away from the outer periphery of the second frame.

9. The chair of claim 1, wherein, The fixing portions have a third through hole, the first frame has a fourth through hole, the position of the third through hole corresponds to the position of the fourth through hole, and the sheet has a through hole at the first region corresponding to the positions of the third through hole and the fourth through hole.

10. The chair of claim 9, wherein, The second regions are between the first regions, and the fixing portions protrude from the outer periphery of the second frame.

11. The chair of claim 1, wherein, The fixing portions have a plurality of positioning stakes, and the positioning stakes pass through the first regions.

12. The chair of claim 11, wherein, The covering comprises an elastic portion and a protective layer, the elastic portion covers the first frame and the second frame, and the protective layer covers the elastic portion.

13. The chair of claim 1, wherein, The frame assembly comprises a first frame, a second frame, a sheet, and a covering, wherein:

14. A chair, characterized in that the first frame has a first opening facing the first side; the second frame is connected to the first frame, the second frame comprises a second opening in the center, the second opening faces the second side and is coincident with the first opening; ​ ​ The sheet is located between the first frame and the second frame, the sheet includes two opposite first regions, two opposite second regions, and a third region between the second regions, each of the first regions is adjacent to one of the second regions, the second regions are bent by the first frame and the second frame, and the third region is exposed to the first opening and the second opening; and The cover covers the first frame and the second frame.

15. A frame assembly suitable for a chair, having opposing first and second sides, characterized in that, The frame assembly includes: a first frame having a first opening facing the first side; a second frame connected to the first frame, the second frame including two opposite fixed portions and a second opening between the fixed portions, the second opening facing the second side and coinciding with the first opening; a sheet located between the first frame and the second frame, the sheet including two opposite first regions, two opposite second regions, and a third region between the second regions, each of the first regions is adjacent to one of the second regions, each of the first regions is fixed to one of the fixed portions, the second regions are bent by the first frame and the second frame, and the third region is exposed between the first opening and the second opening; and a cover covering the first frame and the second frame.

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