Sofa cushions and sofas

Abstract

This utility model discloses a sofa cushion and a sofa, belonging to the field of home furnishings. In order to reduce the wobbling sensation produced by traditional sofa cushions during use, the sofa cushion includes an internal structure (1), an internal sealing layer (2), a shaping layer (3), and a fabric layer (4) that are stacked and connected sequentially from the inside to the outside. The internal structure (1) contains a down tube layer (11) and a sponge structure (12) stacked and connected vertically. The down tube layer (11) contains multiple down tubes (111) arranged in the left-right direction and extending in the front-back direction. The sofa cushion uses a combination of down tube layers and sponge, which can greatly reduce the "wobbling sensation" and prevent the "sinking sensation" after sitting for a long time, thus improving the user's comfort.

Description

Technical Field

[0001] This utility model relates to the field of home furnishings, specifically a sofa cushion or a sofa. Background Technology

[0002] Traditional sofa cushions often use serpentine springs for support. This structure has drawbacks, including complex manufacturing processes, difficult repairs, the sofa's overall structure being non-disassemblyable, and low production efficiency. Furthermore, the material and structural characteristics of serpentine springs themselves cause a wobbling sensation when sitting on traditional sofa cushions, which can be uncomfortable for some middle-aged and elderly users. Utility Model Content

[0003] To reduce the wobbling sensation caused by traditional sofa cushions, this invention provides a sofa cushion and a sofa. The sofa cushion uses a combination of down tube layers and sponge, which can significantly reduce the "wobbling sensation" and prevent the "sinking sensation" after sitting for a long time, thus improving the user's comfort.

[0004] The technical solution adopted by this utility model embodiment to solve its technical problem is:

[0005] A sofa cushion includes an internal structure, an internal encapsulation layer, a shaping layer, and a fabric layer that are stacked and connected sequentially from the inside out. The internal structure contains down tube layers and a sponge structure that are stacked and connected vertically. The down tube layers contain multiple down tubes that are arranged in a left-right direction and extend in a front-back direction.

[0006] The sponge structure contains an inner sponge block and a sponge encapsulation layer that are connected in layers. The inner sponge block contains a seating layer, a shock-absorbing layer, and a support layer that are connected in layers from top to bottom.

[0007] The hardness of the seat comfort layer foam is 30D to 45D, and the height of the seat comfort layer foam is 5cm to 10cm. The hardness of the cushioning layer foam is 10D to 20D, and the height of the cushioning layer foam is 3cm to 5cm. The hardness of the support layer foam is 45D to 100D, and the height of the support layer foam is 5cm to 15cm.

[0008] The sponge encapsulation layer is made of polyester fabric, and the weight of the sponge encapsulation layer is 100g / ㎡~200g / ㎡. The sponge encapsulation layer has a hollow cubic structure and contains a first upper side wall, a first peripheral side wall and a first lower side wall connected sequentially from top to bottom. A first zipper is provided on the first peripheral side wall.

[0009] Multiple down tubes are arranged in a row along the left and right direction. Each down tube contains an outer sleeve and an inner filling. The outer sleeve is made of down-proof fabric, and the inner filling is made of goose or duck feathers.

[0010] The outer diameter of the down tube is 7cm to 10cm. The outer tube sleeve is sewn to the inner sealing layer. The front end of the down tube is flush with the front end of the sponge structure, and the rear end of the down tube is flush with the rear end of the sponge structure.

[0011] The inner packaging layer is made of polyester fabric with a weight of 100g / ㎡~200g / ㎡. The inner packaging layer has a hollow cubic structure and contains a second upper side wall, a second peripheral side wall and a second lower side wall connected from top to bottom. A second zipper is provided on the second peripheral side wall.

[0012] The shaping layer has a hollow cubic structure and contains a third upper sidewall, a third peripheral sidewall, and a third lower sidewall connected sequentially from top to bottom. The third peripheral sidewall and the third lower sidewall are connected by a third zipper.

[0013] Both the third upper sidewall and the third peripheral sidewall contain an inner layer, a silk floss layer, and an outer layer that are stacked and connected sequentially from the inside to the outside. Both the inner layer and the outer layer are a layer of polyester fiber cloth, and the third lower sidewall is a layer of polyester fiber cloth.

[0014] A sofa, comprising a sofa frame and the aforementioned sofa cushions.

[0015] The beneficial effects of this utility model embodiment are:

[0016] 1. Comfort: Compared to sofas using springs, it has better shock absorption and no "wobbling" feeling; at the same time, compared to cushions using only foam, there is no "sinking" feeling after sitting for a long time.

[0017] 2. Simple process: The production process does not require complex processing equipment or workers with complex skills. No glue is sprayed. The entire process is assembly-based production.

[0018] 3. Convenience: The finished product is detachable, making it easy to clean during daily use; the sponge, down tube, and fabric can be replaced individually, making maintenance and repair convenient.

[0019] 4. Environmentally friendly: The sponge structure does not use adhesives, completely avoiding formaldehyde release; each layer of sponge, down, shaping layer and fabric layer can be replaced individually, making maintenance convenient and avoiding the overall waste caused by the inability to repair traditional structures, making it more environmentally friendly. Attached Figure Description

[0020] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention.

[0021] Figure 1 This is a front view schematic diagram of the sofa cushion described in this utility model.

[0022] Figure 2 This is a left-side view of the sofa cushion described in this utility model.

[0023] Figure 3 This is a three-dimensional schematic diagram of the sofa cushion described in this utility model.

[0024] Figure 4 It is along Figure 2 Cross-sectional view along the AA direction.

[0025] Figure 5 yes Figure 4 Enlarged diagram of part B in the middle.

[0026] Figure 6 This is a schematic diagram of the internal structure.

[0027] Figure 7 This is a schematic diagram of the internal encapsulation layer.

[0028] Figure 8 This is a schematic diagram of the shaping layer.

[0029] Figure 9 This is a schematic diagram of the fabric layer.

[0030] Figure 10 This is a front view schematic diagram of the sofa described in this utility model.

[0031] The annotations in the attached figures are explained as follows:

[0032] 1. Internal structure; 2. Internal sealing layer; 3. Shaping layer; 4. Fabric layer; 5. Sofa frame;

[0033] 11. Down tube layer; 12. Sponge structure;

[0034] 21. Second upper sidewall; 22. Second peripheral sidewall; 23. Second zipper;

[0035] 31. Third upper sidewall; 32. Third peripheral sidewall; 33. Third zipper; 34. Inner layer; 35. Silk floss layer; 36. Outer layer;

[0036] 41. Fourth side wall; 42. Fourth lower side wall; 43. Fourth zipper;

[0037] 51. Backrest; 52. Armrests;

[0038] 111. Down jacket;

[0039] 121. Internal sponge block; 122. Sponge encapsulation layer;

[0040] 1111. Outer sleeve; 1112. Internal filling material;

[0041] 1211. Comfort layer foam; 1212. Cushioning layer foam; 1213. Support layer foam;

[0042] 1221. First upper sidewall; 1222. First side peripheral wall; 1223. First zipper. Detailed Implementation

[0043] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0044] For ease of understanding and description, the following description of this utility model uses absolute positional relationships. Unless otherwise specified, the directional word "above" indicates... Figure 1 The direction above, the directional word "down" indicates Figure 1 The lower side of the middle, the directional word "left" indicates Figure 1 The right-hand direction in the text, the directional word "right" indicates Figure 1 In the left direction, the directional word "front" indicates perpendicular to. Figure 1 The paper surface is pointed outwards from the paper surface; the directional word "back" indicates perpendicular to the direction of the paper surface. Figure 1 The direction is towards the inside of the paper. This invention is described from the perspective of a reader or user, but the aforementioned directional terms should not be construed as limiting the scope of protection of this invention. Regarding the material, weight, size, angle, and parameters of the components, those skilled in the art can determine or replace them based on actual needs or a limited number of experiments.

[0045] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the sofa cushion described in this embodiment includes an internal structure 1, an internal encapsulation layer 2, a shaping layer 3, and a fabric layer 4 that are stacked and connected sequentially from the inside to the outside. The internal structure 1 contains a down tube layer 11 and a sponge structure 12 that are stacked and connected vertically. The down tube layer 11 contains a plurality of down tubes 111, which are arranged in the left-right direction and extend in the front-back direction.

[0046] As one possible implementation, the sponge structure 12 includes an inner sponge block 121 and a sponge encapsulation layer 122 that are connected in an inner and outer stack. The sponge encapsulation layer 122 completely fits and wraps around the inner sponge block 121. The inner sponge block 121 has a cubic structure and contains a seating comfort layer sponge 1211, a shock-absorbing layer sponge 1212 and a support layer sponge 1213 that are connected in a bottom-up sequence.

[0047] As one possible implementation, the seat comfort layer 1211 can be a high-resilience sponge with a hardness of 30D to 45D and a height of 5cm to 10cm; the cushioning layer 1212 can be a high-resilience sponge with a hardness of 10D to 20D and a height of 3cm to 5cm; the support layer 1213 can be a high-density rigid sponge with a hardness of 45D to 100D and a height of 5cm to 15cm. The specific heights of the seat comfort layer 1211, cushioning layer 1212, and support layer 1213 can be selected according to the seat height of the sofa.

[0048] As one possible implementation method, such as Figure 4 and Figure 6 As shown, the material of the sponge encapsulation layer 122 can be one or more layers of polyester fabric, and the weight of the sponge encapsulation layer 122 can be 100g / ㎡~200g / ㎡. The sponge encapsulation layer 122 has a hollow cubic structure and includes a first upper sidewall 1221, a first side peripheral wall 1222 and a first lower sidewall connected sequentially from top to bottom. A first zipper 1223 is provided on the first side peripheral wall 1222.

[0049] The first zipper 1223 has a U-shaped or concave structure and is used to easily install or remove the comfort layer sponge 1211, the shock-absorbing layer sponge 1212, and the support layer sponge 1213. The main function of the sponge encapsulation layer 122 is to replace the glue, restrict the displacement between the comfort layer sponge 1211, the shock-absorbing layer sponge 1212, and the support layer sponge 1213, and at the same time make the assembly work between upstream and downstream processes more convenient.

[0050] As one possible implementation method, such as Figure 4 and Figure 6 As shown, multiple down tubes 111 are arranged in a row along the left and right direction. Each down tube 111 contains an outer sleeve 1111 and an inner filling 1112. The outer sleeve 1111 can be a cylindrical structure with both ends closed. The material of the outer sleeve 1111 can be a downproof cloth. The inner filling 1112 can be goose feathers or duck feathers.

[0051] The outer diameter of the down tube 111 can be 7cm to 10cm, the loft of the internal filling 1112 can be 8cm to 12cm, the front and rear ends of the outer tube 1111 are sewn to the inner sealing layer 2, the front end of each down tube 111 is roughly flush with the front end of the sponge structure 12, and the rear end of each down tube 111 is roughly flush with the rear end of the sponge structure 12.

[0052] The number of down tubes 111 can be adapted to the width of the cushion. The design of the down tubes 111 gives the down pieces a certain "rigidity" in some areas, which can effectively prevent the down pieces from spreading to the periphery and forming indentations on the surface of the cushion due to the pressure of the human body weight during sofa use. Moreover, the design of the down tubes 111 itself makes the down auxiliary material of the cushion a standardized part, which makes the production efficiency higher.

[0053] As one possible implementation method, such as Figure 4 and Figure 7 As shown, the inner encapsulation layer 2 can be made of one or more layers of polyester fabric, with a basis weight of 100g / m² to 200g / m². The inner encapsulation layer 2 has a hollow cubic structure and completely fits around the inner structure 1. The inner encapsulation layer 2 includes a second upper sidewall 21, a second peripheral sidewall 22, and a second lower sidewall connected sequentially from top to bottom. A second zipper 23 is provided on the second peripheral sidewall 22. The second zipper 23 has a U-shaped or concave structure and is used for convenient installation or removal of the sponge structure 12. The function of the inner encapsulation layer 2 is to restrict displacement between the cushioning layer sponge 1211, the shock-absorbing layer sponge 1212, and the support layer sponge 1213.

[0054] As one possible implementation method, such as Figure 4 , Figure 5 and Figure 8 As shown, the shaping layer 3 has a hollow cubic structure and fits perfectly around the inner encapsulation layer 2. The shaping layer 3 contains a third upper sidewall 31, a third peripheral sidewall 32, and a third lower sidewall connected sequentially from top to bottom. The three faces of the third peripheral sidewall 32 and the three edges of the third lower sidewall are connected by a third zipper 33. The third zipper 33 has a U-shaped or U-shaped structure and is used for convenient installation or removal of the inner encapsulation layer 2 and its internal structure. The function of the shaping layer 3 is to conceal the uneven shape of the down tube layer 11 and the straight edges of the sponge structure 12.

[0055] As an alternative implementation, the third upper sidewall 31 and the third peripheral sidewall 32 each contain an inner layer 34, a silk floss layer 35 and an outer layer 36 that are sequentially stacked from the inside to the outside. Both the inner layer 34 and the outer layer 36 can be a layer of polyester fiber cloth, and the third lower sidewall is a layer of polyester fiber cloth.

[0056] As one possible implementation method, such as Figure 4 and Figure 9As shown, the fabric layer 4 has a hollow cubic structure and fits perfectly around the shaping layer 3. The fabric layer 4 contains a fourth upper sidewall, a fourth peripheral sidewall 41, and a fourth lower sidewall 42 connected sequentially from top to bottom. A fourth zipper 43 is provided on the fourth lower sidewall 42. The fourth zipper 43 has a U-shaped or U-shaped structure and is used to easily install or remove the shaping layer 3 and its internal structure.

[0057] Fabric layer 4 is the outermost structure that comes into direct contact with the human body. Fabric layer 4 can be made of cloth or leather. When fabric layer 4 is made of cloth, it is generally a blended fabric with a weight of 400g / m² or higher. One of the main functions of fabric layer 4 is to bind and seal the shaping layer 3, the inner sealing layer 2, and the inner structure 1, allowing the cushion to take shape as a whole. The outer diameter of fabric layer 4 is generally 2cm to 3cm smaller than that of the shaping layer.

[0058] The following describes a type of sofa, such as... Figure 1 , Figure 2 , Figure 3 and Figure 10 As shown, the sofa includes a sofa frame 5 and the aforementioned sofa cushions. The sofa frame 5 includes a backrest 51 and armrests 52.

[0059] The above description is merely a specific embodiment of this utility model and should not be construed as limiting the scope of its implementation. Therefore, any substitution of equivalent components or equivalent changes and modifications made within the scope of protection of this utility model should still fall within its coverage. Furthermore, the technical features, technical solutions, and embodiments of this utility model can be freely combined and used.

Claims

1. A sofa cushion, characterized in that, The sofa cushion includes an internal structure (1), an internal encapsulation layer (2), a shaping layer (3), and a fabric layer (4) that are stacked and connected from the inside to the outside. The internal structure (1) contains a down tube layer (11) and a sponge structure (12) that are stacked and connected from top to bottom. The down tube layer (11) contains multiple down tubes (111), which are arranged in the left-right direction and extend in the front-back direction.

2. The sofa cushion according to claim 1, characterized in that, The sponge structure (12) contains an inner sponge block (121) and a sponge encapsulation layer (122) that are connected in an inner and outer layer. The inner sponge block (121) contains a seating layer sponge (1211), a shock-absorbing layer sponge (1212) and a support layer sponge (1213) that are connected in a bottom-up sequence.

3. The sofa cushion according to claim 2, characterized in that, The hardness of the seat comfort layer foam (1211) is 30D to 45D, and the height of the seat comfort layer foam (1211) is 5cm to 10cm. The hardness of the cushioning layer foam (1212) is 10D to 20D, and the height of the cushioning layer foam (1212) is 3cm to 5cm. The hardness of the support layer foam (1213) is 45D to 100D, and the height of the support layer foam (1213) is 5cm to 15cm.

4. The sofa cushion according to claim 2, characterized in that, The sponge encapsulation layer (122) is made of polyester fabric, and the weight of the sponge encapsulation layer (122) is 100g / ㎡~200g / ㎡. The sponge encapsulation layer (122) is a hollow cubic structure. The sponge encapsulation layer (122) contains a first upper sidewall (1221), a first side peripheral wall (1222) and a first lower sidewall connected from top to bottom. A first zipper (1223) is provided on the first side peripheral wall (1222).

5. The sofa cushion according to claim 1, characterized in that, Multiple down tubes (111) are arranged in a row along the left and right direction. Each down tube (111) contains an outer sleeve (1111) and an inner filling (1112). The outer sleeve (1111) is made of downproof cloth, and the inner filling (1112) is made of goose feathers or duck feathers.

6. The sofa cushion according to claim 5, characterized in that, The outer diameter of the down tube (111) is 7cm to 10cm. The outer tube sleeve (1111) is sewn to the inner encapsulation layer (2). The front end of the down tube (111) is flush with the front end of the sponge structure (12), and the rear end of the down tube (111) is flush with the rear end of the sponge structure (12).

7. The sofa cushion according to claim 1, characterized in that, The inner packaging layer (2) is made of polyester fabric. The weight of the inner packaging layer (2) is 100g / ㎡~200g / ㎡. The inner packaging layer (2) is a hollow cubic structure. The inner packaging layer (2) contains a second upper side wall (21), a second side peripheral wall (22) and a second lower side wall connected from top to bottom. A second zipper (23) is provided on the second side peripheral wall (22).

8. The sofa cushion according to claim 1, characterized in that, The shaping layer (3) is a hollow cubic structure. The shaping layer (3) contains a third upper sidewall (31), a third peripheral sidewall (32) and a third lower sidewall connected from top to bottom. The third peripheral sidewall (32) and the third lower sidewall are connected by a third zipper (33).

9. The sofa cushion according to claim 8, characterized in that, The third upper sidewall (31) and the third peripheral sidewall (32) each contain an inner layer (34), a silk floss layer (35) and an outer layer (36) that are stacked and connected sequentially from the inside to the outside. The inner layer (34) and the outer layer (36) are both a layer of polyester fiber cloth, and the third lower sidewall is a layer of polyester fiber cloth.

10. A sofa, characterized in that, The sofa includes a sofa frame (5) and a sofa cushion as described in claim 1.

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