Multi-layer sofa cushion structure

Abstract

The utility model belongs to the technical field of furniture, and particularly relates to a multi-layer sofa cushion structure. The cushion comprises a lower TPE (Thermoplastic Elastomer) supporting layer, an upper memory foam attaching layer, a connecting strip arranged on the side surface of the TPE supporting layer, and an inserting piece for positioning, which is arranged on the connecting strip and is clamped by a seat plate and a backup plate. The elastic cushion has the beneficial effects that the lower TPE supporting layer can provide sufficient and appropriate elasticity, the upper memory foam attaching layer can provide a sufficient attaching effect, the lower TPE supporting layer has the elasticity of rubber and the hardness of plastic, the cushion is prevented from being too large in elasticity and being too fast flattened, and the latter has outstanding wrapping performance, so that the elasticity of the cushion is improved, and the service life of the cushion is prolonged. The use comfort of the sofa cushion base is ensured; the insertion piece for positioning can be fully clamped by the seat plate and the backup plate, so that the sofa cushion is prevented from easily moving and falling off.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of furniture, and particularly relates to a multi-layer sofa cushion structure. BACKGROUND

[0002] Generally, a common sofa mainly comprises a frame and a soft package. The frame comprises a seat plate, a back plate and an armrest plate, and the soft package comprises a seat plate soft package, a back plate soft package and an armrest plate soft package.

[0003] The back plate soft package and the back plate are fixedly connected, the armrest plate soft package and the armrest plate are fixedly connected, and the seat plate soft package and the seat plate are only placed or are preliminarily connected by a Velcro.

[0004] A common sofa cushion mainly comprises an outer cover and an internal filling material. The outer cover can be a non-woven fabric and various fabrics, and the internal filling material is generally a sponge.

[0005] For example, a multi-layer sponge cushion disclosed in a Chinese utility model patent with the authorization announcement number CN214964025U and the authorization announcement date December 3, 2021 mainly comprises a sponge cover, an upper latex layer, a lower latex layer, an upper sponge layer, a lower sponge layer, a sponge interlayer, a spring, a massage magnetic block, a zipper, a hanging ring and a storage groove.

[0006] The sponge cushion in the utility model patent has the advantages that the latex layer and the sponge layer are staggered, the deformation of the cushion after long-time pressing is effectively prevented, the cushion is internally provided with fixed springs, the spring itself and the elasticity of the sponge are combined to improve the recovery ability of the cushion.

[0007] However, the sponge cushion has at least the following problems in actual production and use:

[0008] The number of layers is too large, the production difficulty is relatively high, and the cushion is prone to displacement and falling on the sofa. UTILITY MODEL CONTENT

[0009] The application provides a multi-layer sofa cushion structure, and the technical problem to be solved is how to make the sofa cushion have the double advantages of a relatively small number of layers and being not prone to displacement and falling while ensuring use comfort.

[0010] The technical scheme adopted by the application to solve the above problems is: a multi-layer sofa cushion structure, comprising a TPE supporting layer at the bottom, a memory cotton adhering layer at the top, a connecting strip arranged on the side surface of the TPE supporting layer, and a positioning insert piece arranged on the connecting strip and used for being clamped by a seat plate and a back plate.

[0011] The further preferred technical scheme is that the multi-layer sofa cushion structure further comprises a sponge breathable layer arranged on the lower surface of the TPE supporting layer.

[0012] The further preferred technical scheme is that the thickness of the TPE supporting layer is 7-9 cm, and the thickness of the memory cotton adhering layer is 4-5 cm.

[0013] The further preferred technical scheme is that the thickness of the sponge breathable layer is 3-4 cm.

[0014] The further preferred technical scheme is that the multi-layer sofa cushion structure further comprises an opening outer cover unit used for being sleeved on the TPE supporting layer and the memory cotton adhering layer and penetrating the opening of the connecting strip.

[0015] The further preferred technical scheme is that the opening outer cover unit comprises two single pieces and a zipper arranged on the side edges of the two single pieces and located at the two ends of the connecting strip.

[0016] The further preferred technical scheme is that the multi-layer sofa cushion structure further comprises a plastic protection piece unit arranged on the connecting strip and used for blocking and protecting the wearing action from the zipper end and the seat plate.

[0017] The further preferred technical scheme is that the plastic protection piece unit comprises a zipper end protection piece arranged on the side surface of the connecting strip and a seat plate edge protection piece arranged on the lower surface of the connecting strip.

[0018] The further preferred technical scheme is that the plastic protection piece unit further comprises a falling prevention piece arranged on the zipper end protection piece and used for clamping the upper surface of the connecting strip.

[0019] The further preferred technical scheme is that the plastic protection piece unit further comprises a cloth piece arranged on the lower surface of the seat plate edge protection piece and used for reducing noise.

[0020] The beneficial effects of the application at least include the following four points.

[0021] Firstly, the TPE supporting layer at the bottom can provide sufficient and appropriate elasticity, and the memory cotton adhering layer at the top can provide sufficient adhering effect, the former has the elasticity of rubber and the hardness of plastic, avoids the excessive elasticity of the sofa cushion, and avoids the sofa cushion being pressed too fast, and the latter has outstanding wrapping property, and ensures the use comfort of the sofa cushion.

[0022] Second, the positioning insert piece can be clamped by the seat plate and the back plate, avoiding the sofa cushion from moving and falling easily.

[0023] Third, the open outer cover unit can still stably cover and protect the filling material of the cushion under the premise of the existence of the connecting strip and the positioning insert piece.

[0024] Fourth, the connecting strip is not easy to be worn out, and has a long effective service life. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 For the perspective angle, the structural schematic diagram of the present application.

[0026] Figure 2 For the position of the connecting strip in the present application.

[0027] Figure 3 For the use mode of the positioning insert piece in the present application.

[0028] Figure 4 For the structural schematic diagram of the open outer cover unit in the present application.

[0029] Figure 5 For the position of the sponge breathable layer in the present application.

[0030] Figure 6 For the position of the sponge breathable layer in the present application.

[0031] Figure 7 For the structural schematic diagram of the sponge breathable layer in the present application.

[0032] Figure 8 For the use mode of the noise reduction cloth piece in the present application.

[0033] In the figure, the meanings of the respective marks are as follows.

[0034] The seat plate a, the back plate b, and the back plate soft package c;

[0035] The TPE support layer 1, the memory cotton adhering layer 2, the connecting strip 3, the positioning insert piece 4, the sponge breathable layer 5, the open outer cover unit 6, and the plastic protection piece unit 7;

[0036] The single piece 601, the zipper 602, and the zipper end head 602-1;

[0037] The zipper end protection piece 701, the seat plate edge protection piece 702, the anti-falling piece 703, and the noise reduction cloth piece 704. DETAILED DESCRIPTION

[0038] The following description is merely exemplary of the application, and is not intended to limit the application's scope.

[0039] As shown in the drawings, a multi-layer sofa cushion structure, comprising a lower TPE support layer 1, an upper memory cotton fitting layer 2, a connecting strip 3 arranged on the side of the TPE support layer 1, and a positioning insert sheet 4 arranged on the connecting strip 3 and used for being clamped by a seat plate a and a back plate b. Figures 1-8 In this embodiment, the main features of the TPE support layer 1 are elasticity and moderate hardness, and the main features of the memory cotton fitting layer 2 are slow rebound and high fitting degree. Therefore, the combined use of the TPE support layer 1 at the bottom and the memory cotton fitting layer 2 at the top can ensure that the sofa cushion has the following advantages: sufficient and appropriate elasticity, not easy to be quickly flattened, high fitting degree to the user's hips, obvious effect of dispersing pressure, and significantly improving the overall use comfort of the cushion.

[0040] Among them, the TPE support layer 1 is injection molded or cast molded on the memory cotton fitting layer 2, or the two are adhesively fixed, together forming the filling material of the cushion.

[0041] On the other hand, the TPE support layer 1, the connecting strip 3 and the positioning insert sheet 4 are integrally formed, that is, the materials of the latter two are also TPE, and the thickness of the positioning insert sheet 4 is slightly greater than the width of the gap between the seat plate a and the back plate b, for example, the former is 0.5-1.0 cm larger, to ensure that the cushion can obtain the advantage of not being easily displaced and fallen off on the seat plate a through the positioning insert sheet 4. At the same time, the cushion can also be removed by pulling the positioning insert sheet 4, without affecting the normal use and daily cleaning and maintenance of the cushion.

[0042] In the perspective view, the areas of the TPE support layer 1, the positioning insert sheet 4 and the connecting strip 3 decrease in turn, and the shapes of the three are all rectangular, the thickness of the positioning insert sheet 4 is greater than that of the connecting strip 3 and less than that of the TPE support layer 1.

[0043] The cushion also includes a sponge breathable layer 5 arranged on the lower surface of the TPE support layer 1.

[0044] In this embodiment, the "multi-layer" mentioned above refers to two or three layers, and the latter includes the sponge breathable layer 5 mentioned above on the basis of the former. The main features of the sponge breathable layer 5 are light weight, porous and good air permeability, which can ensure that the heat generated by the user's hips can be first transmitted downward and then transmitted to both sides at the sponge breathable layer 5, so that the cushion has the advantages of air permeability and heat dissipation. Otherwise, the user's hips pressed on the cushion will have a stuffy and uncomfortable experience, and the temperature of the cushion itself will be relatively high.

[0045] ​

[0046] The connection between the TPE supporting layer 1 and the sponge breathable layer 5 can be formed by injection molding, pouring molding or later bonding.

[0047] It is to be noted that the memory cotton fitting layer 2 and the sponge breathable layer 5 are not provided with sufficient tensile capacity, and the connecting strip 3 can be arranged on the TPE supporting layer 1 and made of the same TPE material as the positioning insert 4, which is one of the functions of the TPE supporting layer 1.

[0048] The thickness of the TPE supporting layer 1 is 7-9 cm, and the thickness of the memory cotton fitting layer 2 is 4-5 cm.

[0049] In the embodiment, the filling material of the cushion is mainly the TPE supporting layer 1, which can avoid the cushion being pressed too fast or too much.

[0050] The thickness of the sponge breathable layer 5 is 3-4 cm.

[0051] In the embodiment, the thickness refers to the thickness parameter in the uncompressed state, and the cross-sectional shape and size of the memory cotton fitting layer 2, the TPE supporting layer 1 and the sponge breathable layer 5 are consistent.

[0052] The cushion further comprises an open cover unit 6 for covering the TPE supporting layer 1 and the memory cotton fitting layer 2 and penetrating the connecting strip 3.

[0053] In the embodiment, the cushion is not suitable for the existing common sealing cushion cover due to the arrangement of the connecting strip 3. The connecting strip 3 is used in combination with the open cover unit 6, so that the displacement resistance function of the cushion does not conflict with the basic cover protection function.

[0054] The open cover unit 6 comprises two single pieces 601 and a zipper 602 arranged on the side edges of the two single pieces 601 and located at the two ends of the connecting strip 3.

[0055] In the embodiment, the material of the single piece 601 is non-woven fabric or fabric, and the shape is rectangular. The length of the zipper 602 is less than the circumference of the single piece 601, so that the connecting strip 3 can be stretched out at the opening of the open cover unit 6.

[0056] Correspondingly, the opening structure is reserved by reducing the length of the zipper 602, and the opening is located at the rear of the cushion. The connecting strip 3 and the positioning insert 4 are not easy to touch the buttocks and legs of the user, and do not affect the normal use of the cushion.

[0057] The cushion also comprises a plastic protective sheet unit 7 arranged on the connecting strip 3 and used to block the wear action from the zipper end head 602-1 and the seat plate a.

[0058] In the embodiment, since the connecting strip 3 is worn out by the two zipper end heads 602-1 at the reserved opening position of the zipper 602, the wear problem of the connecting strip 3 by the two zipper end heads 602-1 needs to be considered.

[0059] The reason is that the connecting strip 3 made of TPE material does not have sufficient puncture resistance. The relatively small zipper end head 602-1 made of plastic or metal material will inevitably extrude the connecting strip 3 with the user's normal body movement, such as twisting the body left and right, which will quickly wear out the connecting strip 3. Conversely, this is the role of the plastic protective sheet unit 7.

[0060] The plastic protective sheet unit 7 is adhesively or clippably connected with the connecting strip 3, used to block the extrusion and wear action, and avoid the connecting strip 3 from being broken in a short period of time.

[0061] The plastic protective sheet unit 7 comprises a zipper end protective sheet 701 arranged on the side surface of the connecting strip 3, and a seat plate edge protective sheet 702 arranged on the lower surface of the connecting strip 3.

[0062] In the embodiment, the two zipper end protective sheets 701 and the one seat plate edge protective sheet 702 together form a U-shaped blocking protective structure, so that the zipper end head 602-1 and the edge of the seat plate a will not directly touch the connecting strip 3. For details, please refer to the attached drawings. Figure 6 and 8 .

[0063] The plastic protective sheet unit 7 further comprises a drop prevention sheet 703 arranged on the zipper end protective sheet 701 and used to clamp the upper surface of the connecting strip 3.

[0064] In the embodiment, the main role of the drop prevention sheet 703 is to seal the above-mentioned U-shaped structure, so that even if the plastic protective sheet unit 7 is only clippably connected with the connecting strip 3, the former can also be prevented from easily falling off the latter, and at the same time can be disassembled and replaced. Because the connecting strip 3 made of TPE material can be fully bent, the opening area between the two drop prevention sheets 703 can be squeezed out. For details, please refer to the attached drawings. Figure 7 .

[0065] The plastic protective sheet unit 7 further comprises a noise reduction cloth sheet 704 arranged on the lower surface of the seat plate edge protective sheet 702 and used to rub the edge of the seat plate a.

[0066] In the embodiment, the material of the seat plate a is wood or metal, and the plastic material of the seat plate edge protection sheet 702 is directly attached to the edge of the seat plate a. When the seat cushion is slightly moved, the seat plate edge protection sheet 702 and the edge are prone to generate irritating noise. Therefore, the noise reduction cloth sheet 704 is used to reduce the noise.

[0067] The material of the noise reduction cloth sheet 704 is common cotton cloth or linen cloth, which is attached to the lower surface of the seat plate edge protection sheet 702. When the seat plate edge protection sheet 702 is normally used, it is generally in an inclined state. For details, refer to the attached drawings. Figure 8 .

[0068] The embodiments of the application are described in detail above with reference to the drawings, but the application is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various modifications can be made without departing from the purpose of the application. These are not creative modifications, and are protected by the patent law within the scope of the claims of the application.

Claims

1. A multi-layer sofa cushion structure, characterized in that: It includes a lower TPE support layer (1), an upper memory foam bonding layer (2), a connecting strip (3) disposed on the side of the TPE support layer (1), and a positioning insert (4) disposed on the connecting strip (3) and used for being clamped by the seat plate (a) and the backrest (b).

2. The multi-layer sofa cushion structure according to claim 1, characterized in that: It also includes a sponge breathable layer (5) disposed on the lower surface of the TPE support layer (1).

3. The multi-layer sofa cushion structure according to claim 1, characterized in that: The thickness of the TPE support layer (1) is 7-9cm, and the thickness of the memory foam bonding layer (2) is 4-5cm.

4. The multi-layer sofa cushion structure according to claim 2, characterized in that: The thickness of the breathable sponge layer (5) is 3-4 cm.

5. A multi-layer sofa cushion structure according to claim 1, characterized in that: It also includes an open outer sleeve unit (6) for fitting over the TPE support layer (1) and memory foam bonding layer (2) and passing through the connecting strip (3).

6. The multi-layer sofa cushion structure according to claim 5, characterized in that: The open jacket unit (6) includes two single pieces (601) and a zipper (602) disposed on the sides of the two single pieces (601) and located at the two ends of the connecting strip (3).

7. A multi-layer sofa cushion structure according to claim 6, characterized in that: It also includes a plastic protective sheet unit (7) disposed on the connecting strip (3) and used to block and protect against abrasive action from the zipper end (602-1) and the seat plate (a).

8. A multi-layer sofa cushion structure according to claim 7, characterized in that: The plastic protective sheet unit (7) includes a zipper end protective sheet (701) disposed on the side of the connecting strip (3) and a seat edge protective sheet (702) disposed on the lower surface of the connecting strip (3).

9. A multi-layer sofa cushion structure according to claim 8, characterized in that: The plastic protective sheet unit (7) also includes an anti-drop sheet (703) disposed on the zipper end protective sheet (701) and used to clamp the upper surface of the connecting strip (3).

10. A multi-layer sofa cushion structure according to claim 9, characterized in that: The plastic protective sheet unit (7) also includes a noise-reducing fabric sheet (704) disposed on the lower surface of the seat edge protective sheet (702) and used to rub the edge of the seat (a).

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