Sofa filling sponge with arc-shaped structure
By setting up an arc structure on the base layer of the sofa sponge and forming arc deformation parts by stretching and extruding the sponge layer, the problem of lack of support in the handrail and the upper part of the backrest is solved, and better stiffness and comfort in use are achieved.
Patent Information
- Application Number
- CN202422193355.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-06
- Publication Date
- 2025-06-24
- Estimated Expiration
- 2034-09-06
AI Technical Summary
The existing sofa sponge has no support on the curved structure of the handrail and the upper part of the backrest, which is prone to collapse and has insufficient stiffness. The user has the risk of muscle strain on the neck for a long time.
By providing an arc-shaped structure on the base layer of the sofa sponge, an arc-shaped deformation part, including a compressed part and an elongated part, is formed by stretching and extruding the sponge layer, to form a high-density sponge area to increase stiffness.
It provides strong support, increases user comfort, and avoids muscle strains in the neck during long-term use.
Smart Images
Figure CN223008797U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of sofa filling sponges, in particular to a sofa filling sponge with an arc structure. Background Art
[0002] The shapes of existing sofa sponges are often cut and formed. Arc-shaped sponges are generally used at the armrests and the upper end of the backrest of the sofa. The arc-shaped sponge on the armrest is convenient for the arm to rest, and the arc-shaped sponge at the upper end of the backrest fits the curve of the back of the human neck or provides support for the back of the head. Using arc-shaped sponges in these places can also increase the comfort of the user when contacting.
[0003] However, the arc structures on the armrests and the upper part of the backrest lack certain support during use, are prone to collapse, have insufficient stiffness, and the user cannot obtain sufficient support from the armrests and the upper ends of the backrests. There is a risk of muscle strain in the neck after long-term use. Summary of the Utility Model
[0004] In view of this, the utility model provides a sofa filling sponge with an arc structure to solve the above problems.
[0005] A sofa filling sponge with an arc structure includes a base layer and an arc structure provided at at least one end of the base layer. The base layer includes at least two sponge layers bonded to each other. The arc structure includes two arc-shaped deformation parts symmetrically arranged at one end of the base layer. Each arc-shaped deformation part includes an adhesive surface formed by rotating half of the end face of the base layer, an elongation part located on one side of the adhesive surface, and a compression part located on the other side of the adhesive surface. The adhesive surface is flush with the symmetry plane of the base layer, and the adhesive surfaces of the arc-shaped deformation parts of the two sponge layers are bonded to each other. The outer contour of the elongation part is arc-shaped. The two elongation parts are joined together to form an arc-shaped contour at the end of the base layer, and the two compression parts abut against each other to support the arc-shaped deformation part.
[0006] Further, the arc structures are respectively arranged at the two end faces of the sponge layer.
[0007] Further, the number of the sponge layers is 2, and the thicknesses of the two sponge layers are different.
[0008] Further, the number of the sponge layers is 2, the thicknesses of the two sponge layers are the same, the arc-shaped deformation part is formed by rotating one end face of each sponge layer, the adhesive surfaces are respectively formed by rotating the end faces of each sponge layer, and the adhesive surfaces coincide with each other.
[0009] Further, the hardnesses of the two sponge layers are different.
[0010] Compared with the prior art, the sofa filling sponge with an arc structure provided by the present utility model forms the arc structure by stretching and squeezing on one side of the base layer, without the need to cut the sponge, avoiding the generation of scraps. The arc structure includes two arc deformation parts, and each of the two arc deformation parts has a compression part, which forms a high-density sponge area through compression to increase the stiffness of the arc deformation part, so as to provide strong support when the user uses it, increase the comfort of the user, and avoid muscle strain in the neck during long-term use. There is also an elongation part on the arc deformation part, and the outer contour of the elongation part is arc-shaped. When the two arc deformation parts are bonded, the two elongation parts are joined to form a semi-circular outer contour. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1 FIG. is a side view of the sofa filling sponge with an arc structure provided by the present utility model.
[0012] Figure 2 is Figure 1 structural schematic diagram of the sofa filling sponge with an arc structure of
[0013] Figure 3 is Figure 1 structural schematic diagram of the sofa filling sponge with an arc structure before the arc structure is processed.
[0014] Figure 4 is Figure 1 side view of the sofa filling sponge with an arc structure when the thickness of the sponge layer is different. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0015] The following further details the specific embodiments of the present utility model. It should be understood that the description of the embodiments of the present utility model herein is not intended to limit the protection scope of the present utility model.
[0016] As Figures 1 to 3 shown, it is a structural schematic diagram of the sofa filling sponge with an arc structure provided by the present utility model. The sofa filling sponge with an arc structure includes a base layer 10 and at least one arc structure 20 provided at one end of the base layer 10. The sofa filling sponge with an arc structure also includes some other functional modules, such as an installation structure provided outside the base layer 10 for facilitating installation on the sofa frame, etc., which should be well-known technologies to those skilled in the art and will not be described in detail herein one by one.
[0017] The base layer 10 is formed by bonding at least two sponge layers 11. The hardness of adjacent sponge layers 11 can be the same or different, so as to provide different touch feelings and support effects. In this embodiment, the number of sponge layers 11 is two, and the thicknesses of the two sponge layers 11 are the same. Therefore, the bonding surfaces 211 described below are respectively formed by rotating the end faces of each sponge layer 11.
[0018] The number of the arc structures 20 is at least one. In this embodiment, the number of the arc structures 20 is two and they are symmetrically arranged. During actual use, the arc structures 20 can be arranged on any one or more of the four end faces of the base layer 10 according to needs, so as to meet the needs of the arc-shaped sponge at different positions of the sofa.
[0019] The arc structure 20 includes two arc-shaped deformation parts 21 symmetrically arranged on the base layer 10. The arc-shaped deformation part 21 includes a fitting surface 211 respectively arranged on one side of each sponge layer 11, a bonding surface 212 respectively arranged at one end of each sponge layer 11, an elongation part 213 located on one side of the bonding surface 212, and a compression part 214 located on the other side of the bonding surface 212.
[0020] Glue is applied between the fitting surfaces 211. The shapes of the two bonding surfaces 211 are the same, both being rectangles.
[0021] The shape of the bonding surface 212 is a rectangle. The shapes of the two bonding surfaces 212 are exactly the same. Before processing, the two bonding surfaces 212 are in the same plane, and the two bonding surfaces 212 are respectively perpendicular to the fitting surface 211. During processing, a layer of glue is first sprayed on the surface of the bonding surface 212, one bonding surface 212 is rotated clockwise by 90°, and the other bonding surface 212 is rotated counterclockwise by 90°, so that the two bonding surfaces 212 coincide. At this time, the elongation part 213 is formed on the side of the bonding surface 212 away from the bonding surface 211, and the compression part 214 is formed on the side of the bonding surface 212 close to the bonding surface 211.
[0022] The hardnesses of different sponge layers 11 can be the same or different, so as to bring different touch feelings to users. When the hardnesses of the two sponge layers 11 are the same, such as Figure 4As shown, at this time, the two overlapping processed bonding surfaces 212 and the fitting surface 211 are in the same plane. When the hardnesses of the two sponge layers 11 are different, due to the different hardnesses of the two sponge layers 11 resulting in different rebound effects, the thickness of the harder sponge layer 11 is thinner, and the two overlapping bonding surfaces 212 after processing and the symmetry plane 215 of the base layer 10 are not in the same plane, so as to balance the sponge deformation amounts on both sides of the symmetry plane 215 and make the outer contour of the extension part 213 smoother.
[0023] The contour of the extension part 213 is arc-shaped. After the two extension parts 213 are joined together, the cross-sectional contour is approximately semi-circular.
[0024] The compression part 214 is formed after the sponge is extruded. Since the sponge layer 11 itself has pores, when the bonding surface 211 is bonded, the sponges at the compression part 214 are extruded against each other, and the sponge density is greater, so that the hardness of the compression part 214 is higher and the support effect is good.
[0025] Compared with the prior art, the sofa filling sponge with an arc structure provided by the present invention forms the arc structure 20 by stretching and extruding on one side of the base layer 11, without cutting the sponge, avoiding the generation of scraps. The arc structure 20 includes two arc deformation parts 21, and each of the two arc deformation parts 21 has a compression part 214. A high-density sponge area is formed by compression to increase the stiffness of the arc deformation part 21, so as to provide strong support when the user uses it, increase the comfort of the user, and avoid muscle strain in the neck during long-term use. The arc deformation part 21 also has an extension part 213, and the outer contour of the extension part 212 is arc-shaped. When the two arc deformation parts 21 are bonded, the two extension parts 213 are joined together to form a semi-circular outer contour.
[0026] The above is only the preferred embodiment of the present invention and is not used to limit the protection scope of the present invention. Any modification, equivalent replacement or improvement within the spirit of the present invention is covered by the claims of the present invention.
Claims
1. A sofa filling sponge with an arc-shaped structure, characterized in that: The sofa filling sponge with an arc structure includes a base layer and an arc structure arranged at at least one end of the base layer. The base layer includes at least two sponge layers bonded to each other. The arc structure includes two arc-shaped deformation parts symmetrical to one end of the base layer. Each arc-shaped deformation part includes an adhesion surface formed by rotating half of the base layer end surface, an extension part located on one side of the adhesion surface, and a compression part located on the other side of the adhesion surface. The adhesion surface is flush with the symmetry surface of the base layer. The adhesion surfaces of the arc-shaped deformation parts of the two sponge layers are bonded to each other. The outer contour of the extension part is arc-shaped. After the two extension parts are spliced together, a circular arc contour is formed at the end of the base layer. The two compression parts abut against each other to support the arc-shaped deformation part.
2. The sofa filling sponge with an arc-shaped structure as claimed in claim 1, characterized in that: The arc-shaped structures are respectively arranged on two end surfaces of the sponge layer.
3. The sofa filling sponge with an arc-shaped structure as claimed in claim 1, characterized in that: The number of the sponge layers is 2, and the thicknesses of the two sponge layers are different.
4. The sofa filling sponge with an arc-shaped structure as claimed in claim 1, characterized in that: The number of the sponge layers is two, the thickness of the two sponge layers is the same, the arc-shaped deformation portion is formed by rotating one end surface of each sponge layer, the bonding surface is formed by rotating the end surface of each sponge layer, and the bonding surfaces overlap each other.
5. The sofa filling sponge with an arc-shaped structure as claimed in claim 3 or 4, characterized in that: The two sponge layers have different hardnesses.