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, the sheet body comprises two opposite first areas, two opposite second areas located between the first areas and a third area located between the second areas, the first areas are fixed to the fixing parts respectively, the second areas are pressed by the first frame and the second frame together to be bent, and the third area is located between 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 a frame component thereof, in particular to a chair and a frame component thereof for supporting a human body. Background Art

[0002] For people who work in offices, a chair with the right size and the ability to provide proper human support is necessary because they need to sit for a long time. Due to heat dissipation considerations, chairs that use a net set on a frame component as a support are becoming more and more common. However, with different net-setting methods and shapes, there are different manufacturing methods and difficulties, and the durability is also different. Utility Model Content

[0003] The utility model provides a chair which has good durability and is easy to manufacture.

[0004] The utility model also provides a frame assembly which is applied to a chair and has good durability and is easy to manufacture.

[0005] In order to achieve the above advantages, one embodiment of the utility model provides a chair, including: a frame assembly. The frame assembly has a first side and a second side opposite to each other. The frame assembly includes: a first frame, a second frame, a sheet and a covering. The first frame has a first opening facing the first side. The second frame is connected to the first frame, and the second frame includes two opposite fixing parts and a second opening located between the fixing parts, the second opening facing the second side, and the position overlaps with the first opening. The sheet is located between the first frame and the second frame, and the sheet includes two opposite first areas, two opposite second areas located between the first areas, and a third area located between the second areas, each of the first areas is fixed to a fixing part, the second area is compressed and bent by the first frame and the second frame, and the third area is located between the first opening and the second opening. The covering covers the first frame and the second frame.

[0006] In an embodiment of the present invention, the first frame includes two opposite ribs located at opposite sides of the first opening, and the second frame includes two opposite grooves, each rib is suitable for combining each groove and pressing the second area.

[0007] In an embodiment of the present invention, the second area covers the convex rib.

[0008] In an embodiment of the present invention, the convex rib is provided with a convex portion, the concave groove is provided with a concave cavity corresponding to the convex portion, and the sheet body is sandwiched between the convex portion and the concave cavity.

[0009] In one embodiment of the present invention, the first frame is provided with a first through hole, and 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. The covering member extends from the first side to the second side via the first through hole and the second through hole.

[0010] In an embodiment of the present invention, the fixing portion is protruded from the outer periphery of the second frame.

[0011] In an embodiment of the present invention, the fixing portion has a plurality of positioning piles, and the positioning piles pass through the first area.

[0012] In one embodiment of the present invention, the covering member comprises an elastic portion and a protective layer. The elastic portion covers the first frame and the second frame. The protective layer covers the elastic portion.

[0013] The utility model also provides a chair, having a first side and a second side opposite to each other, wherein the frame assembly comprises: a first frame, a second frame, a sheet and a covering. 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 a second opening located in the center, the second opening faces the second side, and the position overlaps with the first opening. The sheet is located between the first frame and the second frame, and the sheet comprises two opposite first areas, two opposite second areas located between the first areas, and a third area located between the second areas. The second area is compressed and bent by the first frame and the second frame. The third area is located between the first opening and the second opening. The covering covers the first frame and the second frame.

[0014] The utility model further provides a frame assembly, which is suitable for a chair and has a first side and a second side opposite to each other. The frame assembly includes: a first frame, a second frame, a sheet and a covering. The first frame has a first opening facing the first side. The second frame is connected to the first frame. The second frame includes two opposite fixing parts and a second opening located between the fixing parts. The second opening faces the second side and overlaps with the first opening. The sheet is located between the first frame and the second frame. The sheet includes two opposite first areas, two opposite second areas located between the first areas and opposite to each other, and a third area located between the second areas. Each of the first areas is fixed to a fixing part. The second area is bent by the joint pressure of the first frame and the second frame. The third area is located between the first opening and the second opening. The covering covers the first frame and the second frame.

[0015] Through the above description, the utility model chair and its frame assembly. When assembled, the outermost first area of ​​the sheet body can be first fixed to the fixing part of the second frame, and then the second area surrounded by the first area can be compressed and bent by the combination of the first frame and the second frame, so that the third area in the center of the sheet body is stretched by the tension from the second area to form a part of the frame assembly suitable for providing human body support. In addition, because the covering member is used to cover the first frame and the second frame that clamp the sheet body from both sides, the covering member can not only serve as a buffer to provide human body support, but also can prevent the first frame and the second frame from separating by covering the first frame and the second frame at the same time.

[0016] The above description is only an overview of the technical solution of the utility model. In order to more clearly understand the technical means of the utility model, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the utility model more obvious and easy to understand, the following is a preferred embodiment, and is described in detail with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic diagram of a chair according to an embodiment of the present invention;

[0018] Figure 2 for Figure 1 In the embodiment, an exploded schematic diagram of the frame assembly;

[0019] Figure 3 for Figure 2 Schematic diagram of the cross section along the AA section line;

[0020] Figure 4 for Figure 2 Schematic diagram of the assembly process of the frame assembly in the embodiment;

[0021] Figure 5 for Figure 2 Schematic diagram of the cross section along the middle BB section line;

[0022] Figure 6 This is an exploded schematic diagram of a frame assembly of another embodiment of the utility model;

[0023] Figure 7 for Figure 6 A cross-sectional diagram of the midframe assembly. DETAILED DESCRIPTION

[0024] In the following articles, the terms used in the description of the embodiments of the present invention, such as the description of the directions or positional relationships indicated by "upper" and "lower", are described based on the directions or positional relationships shown in the drawings used. The above terms are only for the convenience of describing the present invention, and are not intended to limit the present invention, i.e., they do not indicate or imply that the elements mentioned must have a specific direction or be constructed in a specific direction. In addition, the terms "first", "second", etc. mentioned in this specification or the scope of the patent application are only used to name the element or distinguish different embodiments or scopes, and are not used to limit the upper or lower limit of the number of elements.

[0025] Figure 1 It is a schematic diagram of a chair according to an embodiment of the present invention. Figure 2 for Figure 1 An exploded schematic diagram of a frame assembly in an embodiment. Figure 3 for Figure 2AA section line in FIG. In order to clearly illustrate the detailed related structure, the shape of the frame assembly 2 is bilaterally symmetrical, so Figure 2 The shape of the frame assembly 2 is simplified without corresponding Figure 1 The shape of the frame assembly 2 is shown in FIG. 1 , and only a cross-sectional view of a portion on one side is drawn.

[0026] like Figure 1 As shown, the chair 1 of the utility model in one embodiment includes: a frame assembly 2. Figure 2 and Figure 3 As shown, the frame assembly 2 has a first side S1 and a second side S2 opposite to each other. The frame assembly 2 includes: a first frame 21, a second frame 22, a sheet 23 and a covering member 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. The second frame 22 includes two opposite fixing portions 227 and a second opening 220 located between the fixing portions 227. The second opening 220 faces the second side S2 and overlaps with the first opening 210. The sheet 23 is located between the first frame 21 and the second frame 22. The sheet 23 includes two opposite first areas 231, two opposite second areas 232 located between the first areas 231, and a third area 233 located between the second areas 232. The first areas 231 are each fixed to a fixing portion 227. The second area 232 is compressed and bent by the first frame 21 and the second frame 22. The third area 233 is located between the first opening 210 and the second opening 220. The covering member 24 covers the first frame 21 and the second frame 22.

[0027] 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 suitable for supporting other components of the chair 1. The seat cushion 12 is, for example, connected to the top of the base 11 and is suitable for supporting the buttocks of a 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 suitable for supporting the back of a human body, and the headrest 14 is, for example, connected to the top of the back cushion 13, and is suitable for supporting the head of a human body. Since the structure of the chair 1 is not limited, in other embodiments not shown in the figure, the chair 1 may only have parts of the base 11 and the seat cushion 12.

[0028] In this embodiment, the frame assembly 2 is applied to the back cushion 13, for example. However, 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 footrest. In embodiments where the design of the handle is different from that of this embodiment, the frame assembly 2 can also be applied to the handle.

[0029] Specifically, if Figures 2 to 4As shown, the first frame 21 includes, for example, a first rib 211 and a first groove 212. The direction of the first rib 211 is parallel to the direction of the first opening 210. The first rib 211 extends along the direction of the first frame 21 and surrounds in a ring shape. The first groove 212 is, for example, located on the back of the first rib 211 and surrounds the entire first opening 210. The first groove 212 has parallel walls 212a and 212b. The wall 212a is close to the first opening 210, and the wall 212b is far away from the second opening 220. The bottom of the first groove 212 constitutes the top 211a of the first rib 211, so that the cross-section of the first frame 21 is U-shaped, but the cross-sectional shape of the first frame 21 is not limited thereto. The material of the first frame 21 is, for example, plastic, but is not limited thereto.

[0030] like Figures 2 to 4 As shown, in detail, the first frame 21 further includes two first flanges 213, a plurality of protrusions 214 and a plurality of first through holes 215, but this is not limited to the above, and the above structure can be set according to the needs. The two first flanges 213 are respectively located on the left and right sides of the opening of the first groove 212, one of the first flanges 213 is connected to the wall 212a and adjacent to the first opening 210, and the other first flange 213 is connected to the wall 212b and surrounds the outer periphery of the first frame 21, but the specific design of the first flange 213 is not limited to this. The first flange 213 is suitable for preventing 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.

[0031] The protrusion 214 is located at the top 211a of the first rib 211 and is shaped like a circular through hole. Its length is, for example, the wall thickness corresponding to the top 221a of the second frame 22, but the shape is not limited thereto. The opening direction of the protrusion 214 is, for example, parallel to the direction of the first opening 210.

[0032] The first through hole 215 is located at the top 211a of the first rib 211 and at one side of the protrusion 214. Its shape is not limited and can be, for example, a rectangular hole, but is not limited thereto. The opening direction of the first through hole 215 is, for example, parallel to the direction of the first opening 210.

[0033] like Figures 2 to 4As shown, similar to the shape of the first frame 21, in this embodiment, the second frame 22 includes, for example, a second rib 221 and a second groove 222. The direction of the second rib 221 is parallel to the direction of the second opening 220, and the second rib 221 extends along the direction of the second frame 22 to form a ring. The second groove 222 is, for example, located on the back of the second rib 221 and surrounds the entire second opening 220. The second groove 222 has parallel walls 222a and 222b, the wall 222a is close to the second opening 220, and the wall 222b is far away from the second opening 220, and the bottom of the second groove 222 constitutes the top 221a of the second rib 221, so that the cross section of the second frame 22 is U-shaped, but the cross-sectional shape of the second frame 22 is not limited thereto. The material of the second frame 22 is, for example, plastic, but is not limited thereto.

[0034] like Figures 2 to 4 As shown, the second frame 22 includes two second flanges 223, a plurality of recesses 224, a plurality of second through holes 225 and two reinforcing ribs 226. The two second flanges 223 are located at 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 is adjacent to the second opening 220, and the other second flange 223 is connected to the wall surface 222b and surrounds the outer periphery of the second frame 22, and clamps the sheet 23 together with the first flange 213 when combined, but the specific position and design of the second flange 223 are not limited to this. In an embodiment not shown in the figure, the surface position of the third area 233 on the sheet 23 can be changed by adjusting the shape design of the second flange 223, for example, making it cut flat on the surface of the first frame 21. The second flange 223 is also suitable for preventing the second frame 22 from deforming at the second groove 222 or the second opening 220 when combined with the first frame 21.

[0035] The recess 224 is located at the top of the second convex 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, cylindrical corresponding to the shape of the protrusion 214, but is not limited to this. The depth of the recess 224 is, for example, corresponding to the length of the protrusion 214. The direction of the recess 224 is, for example, parallel to the direction of the second opening 220.

[0036] The second through hole 225 is located at the top 221a of the second rib 221 and at one side of the recess 224. The shape of the second through hole 225 is not limited and is, for example, a rectangular hole, but not limited thereto. Therefore, the shape of the second through hole 225 can be different from the first through hole 215. The position of the second through hole 225 is, for example, corresponding to the position of the first through hole 215, but not limited thereto. The opening direction of the second through hole 225 is, for example, parallel to the direction of the second opening 220.

[0037] The two strengthening ribs 226 are located at the top 221 a of the second convex rib 221 . The two strengthening ribs 226 are parallel to each other and are located at different side edges of the top 221 a , and both extend in a direction away from the second flange 223 .

[0038] like Figures 2 to 4 As shown, the two fixing portions 227 on the second frame 22 are, for example, respectively connected to the second flange 223 on different sides away from the first opening 210 (i.e., the outer periphery of the second frame 22). In this embodiment, the fixing portion 227 is, for example, composed of a plurality of lugs spaced apart and protruding on the second flange 223, but is not limited thereto (see the following for details). Figure 6 Implementation example). These lugs protrude from the second frame 22 in a direction away from the second opening 220, and each lug is provided with a plurality of positioning piles 227a, which are suitable for piercing the first area 231 on the sheet 23 to locate the relative position of the sheet 23 and the second frame 22 when the second frame 22 and the sheet 23 are combined. There is no restriction on the direction of the positioning pile 227a, for example, it is toward the second side S2 but 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 thereto, and can be set according to the required shape.

[0039] like Figures 2 to 4 As shown, the shape of the sheet 23 corresponds to the shape of the first frame 21 and the second frame 22, and can completely cover the first opening 210 and the second opening 220 when the three are combined. In this embodiment, the sheet 23 is, for example, an elastic and stretchable net, but in an embodiment not shown in the figure, the sheet 23 can be a membrane without holes, which can be selected according to needs. The first area 231, the second area 232 and the third area 233 on the sheet 23 are determined by the relative position between the sheet 23 and the second frame 22 when the sheet 23 is combined with the first frame 21 and the second frame 22, as described in detail below.

[0040] For more information, see Figure 4 As shown, 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 first area 231) are first fixed to the fixing portion 227 of the second frame 22, and a portion of the sheet 23 covers the second groove 222, and another portion of the sheet 23 covers the second opening 220.

[0041] Next, the first frame 21 and the second frame 22 are overlapped with each other along the axis of the opening direction of the first opening 210 (and the second opening 220), and the first rib 211 of the first frame 21 is buried in the second groove 222 of the second frame 22 (see Figure 3). Since both ends (two ends) of the sheet 23 are connected to two opposite fixing portions 227 located on the outer periphery of the second groove 222, during the assembly process, a portion of the sheet 23 originally covering the second groove 222 will be squeezed into the first groove 212 by the first frame 21 and stretched (this portion is the second area 232). At the same time, since there are no other fixing parts between the portion of the sheet 23 covering the second groove 222 (the second area 232) and the portion of the sheet 23 covering the second opening 220 (the third area 233), when the second area 232 is stretched, the third area 233 located in the center of the sheet 23 is also indirectly stretched and stretched on the second opening 220 (and the first opening 210). In terms of direction, since the first frame 21 and the second frame 22 in this embodiment are annular components, after being stretched, the direction of the tension acting on the sheet 23 has no specific directionality, but is not limited thereto.

[0042] like Figure 3 As shown, in this embodiment, when the second area 232 of the sheet 23 is sandwiched between the first frame 21 and the second frame 22, a portion of the second area 232 is located on both sides of the first convex rib 211 and covers the wall surface 211a and the wall surface 211b, and a portion of the second area 232 covers the top 211a of the first convex rib 211 to present a U shape. Among them, the portion of the sheet 23 covering the top 221a of the first convex rib 211 and the convex portion 214 will enter the concave cavity 224 on the first convex rib 211 together with the convex portion 214 when the first frame 21 and the second frame 22 are combined. Figure 3 As shown, in this example, when the protrusion 214 enters the concave cavity 224, the protrusion 214 does not pierce the sheet 23, so it can be considered that the sheet 23 is clamped and fixed by the protrusion 214 and the side wall of the concave cavity 224. However, in an embodiment not shown in the figure, the protrusion 214 can be changed to pierce the sheet 23 to fix the sheet 23. Since the sheet 23 is mainly positioned by the clamped second area 232 after the first frame 21 and the second frame 22 are clamped, after the first frame 21 and the second frame 22 are combined, the damage of the sheet 23 in the first area 231 will not affect the part of the sheet 23 in the third area 233.

[0043] It can be understood from the above description that the first area 231 on the sheet 23 can be regarded as the part of the sheet 23 used to connect with the fixing part 227 of the second frame 22. The second area 232 can be regarded as the part of the sheet 23 that is contacted, squeezed and deformed by the walls (wall 212a, wall 212b, wall 222a, wall 222b, top 211a and top 221a) of the first frame 21 and the second frame 22, and is also clamped. The third area 233 can be regarded as the part of the sheet 23 that is stretched by the first frame 21 and the second frame 22, but is not in contact with the first frame 21 and the second frame 22. Therefore, the detailed shapes of the first area 231, the second area 232, and the third area 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 special limitation on the shape.

[0044] From the design point of view of the shapes of the first frame 21 and the second frame 22, since it is only necessary to allow the sheet 23 to be stretched and have sufficient tension in the third area 233 when it is combined with the first frame 21 and the second frame 22, in the embodiment not shown in the figure, the shape of one of the first frame 21 and the second frame 22 can be simplified and can be a U-shaped component, and does not need to be a complete annular component. In other words, in one embodiment, the first frame 21, for example, includes two opposite ribs (corresponding to the aforementioned first ribs 211), and the two ribs are located on opposite sides of the first opening 210, and the second frame 22, for example, includes two opposite grooves (corresponding to the aforementioned second grooves 222), each rib is suitable for combining each groove and pressing the second area 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, for example, can be changed to be designed as an inner frame that is clamped on the inner wall surface (wall surface 222a) of the second opening 220 of the second frame 22, so in this embodiment not shown, the second frame 22 does not need the second groove 222.

[0045] like Figure 3 As shown, in the present embodiment, the covering member 24 is, for example, a member covering the entire first frame 21 and the entire second frame 22, but not covering the third area 233 of the sheet 23, but not limited thereto. In the present embodiment, the covering member 24 is, for example, a member including an elastic portion 241 and a protective layer 242. The elastic portion 241 is, for example, a member covering the entire first frame 21 and the entire second frame 22 (including the fixing portion 227), such as foam or other foaming materials, but not limited thereto. The protective layer 242 is, for example, a layer covering the entire elastic portion 241, but the protective layer 242 may also be a layer covering 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 materials that can be provided as required.

[0046] When manufacturing the frame assembly 2 of the present embodiment, for example, the sheet 23 may 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 may be combined with the first frame 21, and finally the three may be placed in a cavity of a mold (not shown), and the material of the coating may be injected into the cavity to form the coating 24. There is no restriction on the order of manufacturing the protective layer 242 and the elastic portion 241, but for example, the protective layer 242 (or its material) may be first disposed on the wall surface of the cavity of the mold, and then the components consisting of the first frame 21, the second frame 22 and the sheet 23 may be disposed in the mold, and then the material of the elastic portion 241 may be injected into the cavity to manufacture the frame assembly 2.

[0047] 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 connected and positioned with the second frame 22 through the fixing portion 227, no additional fixing device is required to fix the relative relationship between the second frame 22 and the sheet 23 when the first frame 21, the second frame 22 and the sheet 23 are combined. The second frame 22 and the sheet 23 can be directly temporarily combined, and the first frame 21 and the second frame 22 can be combined to fix the sheet 23. And because the entire first frame 21 and the second frame 22 are then covered with the covering member 24, the first frame 21 and the second frame 22 can be prevented from being easily separated when the frame assembly 2 is hit.

[0048] like Figure 2 and Figure 5 As shown, in this embodiment, the position of the first through hole 215 corresponds to the position of the second through hole 225, and the sheet 23 is a mesh with holes, and the covering member 24 includes a foam material. Therefore, in this embodiment, a portion of the foam material can pass through the first through hole 215, the hole (not shown) on the sheet 23, and the second through hole 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 covering member 24 rivets the first frame 21 and the second frame 22 at the connection point between the first through hole 215 and the second through hole 225.

[0049] Figure 6 It is a schematic diagram of an exploded view of a frame assembly according to another embodiment of the present invention. Figure 7 for Figure 6 A cross-sectional schematic diagram of a frame assembly in the embodiment. Figure 6 In the figure, because the shapes of the first frame 21 and the second frame 22 are relatively complex, the sheet 23 is omitted. The actual installation position of the sheet 23 can be referred to Figure 2 or Figure 7 .exist Figure 7 In order to facilitate confirmation of the relationship between the notch 288, the fixing portion 227 and other components, the positions of the fixing portion 227 and the notch 228 are offset during drawing.

[0050] Since the components are similar, the following description will be omitted. Figure 6 , Figure 7 The same parts as the above embodiments are described in detail. Figure 6 and Figure 7 As shown and referred to above Figure 2 In this embodiment, the first frame 21 and the second frame 22 of the frame assembly 2 are, for example, curved in an arc corresponding to the chair back 13. Figure 1 The first frame 21 is provided on the side of the headrest 14 toward the base 11, for example, divided into a first section 1A and a second section 1B. The first section 1A is connected to the base 11, for example, through the second section 1B. When a user sits on a chair (not shown), the first frame 21, for example, at least a portion of the first section 1A can apply pressure to the second frame 22 along a force application direction F.

[0051] like Figure 6 and Figure 7 As shown, in this embodiment, the second frame 22 may not have the aforementioned second flange 223, and the fixing portion 227 may be, for example, a plurality of protrusions directly provided on the edge of the second frame 22, and the protrusions extend, for example, in a direction opposite to the force direction F and toward the first frame 21. The first frame 21 may not have the first groove 212, and a notch 228 corresponding to the position of the fixing portion 227 may be provided on the edge of the first frame 21.

[0052] like Figure 6 and 7 As shown, in this embodiment, the protrusions 214 are, for example, disposed on the second frame 22 and located in the second groove 222, and the first frame 21 is, for example, provided with third through holes 216 corresponding to the positions of the protrusions 214. Figure 7 As shown, when the user applies an external force along the force direction F, the external force can press the first frame 21 toward the second frame 22 and strengthen the force between the first frame 21 and the second frame 22 to clamp and fix the sheet 23 .

[0053] In addition, it should be understood that the description of the manufacturing method of the frame assembly 2 in the above paragraphs is only an example. In an embodiment not shown in the figure, the second frame 22 may not have a fixing portion 227 arranged at the periphery, and for example, a protrusion 214 in the second groove 222 whose extension length is greater than the depth of the second groove 222 is used to temporarily fix the sheet 23 (this type of protrusion 214 can be regarded as another type of fixing portion 227). Or, in another embodiment not shown in the figure, for example, an alignment pin (not shown) that can be penetrated in the second through hole 225 and can pass through the sheet 23 to temporarily align the sheet 23 with the second frame 22 can be provided in the mold, and the alignment pin (which can be regarded as a removable fixing portion 227) can be removed in the step after the first frame 21 and the second frame 22 are combined to clamp the sheet 23 and before the cover 24 is manufactured.

[0054] With the above description, the utility model chair and its frame assembly. When assembled, the outermost first area of ​​the sheet body can be first fixed to the fixing part of the second frame, and then the second area surrounded by the first area can be compressed and bent by the combination of the first frame and the second frame, so that the third area in the center of the sheet body is stretched by the tension from the second area to form a part of the frame assembly suitable for providing human body support. In addition, because the covering member is used to cover the first frame and the second frame that clamp the sheet body from both sides, the covering member can not only serve as a buffer to provide human body support, but also can prevent the first frame and the second frame from separating by covering the first frame and the second frame at the same time.

[0055] The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technician familiar with the profession can make some changes or modifications to equivalent embodiments of equivalent changes using the methods and technical contents disclosed above without departing from the scope of the technical solution of the present invention. However, any simple modification, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A chair, characterized in that: include: A frame assembly has a first side and a second side opposite to each other, the frame assembly comprising a first frame, a second frame, a sheet and a covering member, wherein: The first frame has a first opening facing the first side; The second frame is connected to the first frame, and includes two opposite fixing portions and a second opening between the fixing portions, the second opening faces the second side and overlaps with the first opening; The sheet is located between the first frame and the second frame, and includes two opposite first areas, two opposite second areas located between the first areas, and a third area located between the second areas, the first areas are each fixed to one of the fixing portions, the second areas are compressed and bent by the first frame and the second frame, and the third area is located between the first opening and the second opening; and The covering component covers the first frame and the second frame.

2. The chair according to claim 1, characterized in that The first frame includes two opposite ribs, and the ribs are located at opposite sides of the first opening. The second frame includes two opposite grooves, and each of the ribs is suitable for combining each of the grooves and pressing the second area.

3. The chair according to claim 2, characterized in that: The second regions cover the convex ribs.

4. The chair according to claim 3, characterized in that The ribs are provided with at least one convex portion, the grooves are provided with at least one concave cavity corresponding to the position of the at least one convex portion, and the sheet body is sandwiched between the at least one convex portion and the at least one concave cavity.

5. The chair according to claim 1, characterized in that: 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 element extends from the first side to the second side via the first through hole and the second through hole.

6. The chair according to claim 1, characterized in that: The fixing parts are protruded from the outer periphery of the second frame.

7. The chair according to claim 6, characterized in that The fixing parts have a plurality of positioning piles, and the positioning piles pass through the first area.

8. The chair according to claim 7, characterized in that The covering piece comprises an elastic part and a protective layer. The elastic part covers the first frame and the second frame, and the protective layer covers the elastic part.

9. A chair, characterized in that: include: A frame assembly has a first side and a second side opposite to each other, the frame assembly comprising a first frame, a second frame, a sheet and a covering member, wherein: The first frame has a first opening facing the first side; The second frame is connected to the first frame, and the second frame includes a second opening located in the center, the second opening faces the second side, and the position overlaps with the first opening; The sheet is located between the first frame and the second frame, and includes two opposite first areas, two opposite second areas located between the first areas, and a third area located between the second areas. The second areas are compressed and bent by the first frame and the second frame, and the third area is located between the first opening and the second opening; and The covering component covers the first frame and the second frame.

10. A frame assembly, suitable for a chair, having a first side and a second side opposite to each other, characterized in that: The frame components include: a first frame having a first opening facing the first side; a second frame connected to the first frame, the second frame comprising two opposite fixing portions and a second opening located between the fixing portions, the second opening facing the second side and overlapping with the first opening; a sheet body, located between the first frame and the second frame, the sheet body comprising two opposite first areas, two opposite second areas located between the first areas, and a third area located between the second areas, the first areas are each fixed to one of the fixing portions, the second areas are compressed and bent by the first frame and the second frame, and the third area is located between the first opening and the second opening; and A covering piece covers the first frame and the second frame.

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