ELASTIC CUSHION

Abstract

An elastic cushion is provided in the disclosure, which includes a first elastic body, a second elastic body and a sleeve body. The second elastic body is embedded or fused in the first elastic body, and the sleeve body wraps outside the first elastic body. The second elastic body includes a wear resistant sleeve with a plurality of accommodating cavities and a plurality of elastic monomers arranged in the accommodating cavities in one-to-one correspondence. The plurality of accommodating cavities of the wear resistant sleeve are arranged independently of each other. Softness of the first elastomer is greater than that of the second elastomer, and elasticity of the second elastomer is greater than that of the first elastomer. The elastic cushion according to the disclosure can be uniformly stressed, with excellent comfort and a good rebound force.

Claims

1. An elastic cushion, comprising a first elastic body, a second elastic body and a sleeve body, wherein the second elastic body is embedded or fused in the first elastic body, and the sleeve body wraps outside the first elastic body, the second elastic body comprises a wear resistant sleeve with a plurality of accommodating cavities and a plurality of elastic monomers arranged in the accommodating cavities in one-to-one correspondence, the plurality of accommodating cavities of the wear resistant sleeve being arranged independently of each other; and softness of the first elastomer is greater than softness of the second elastomer, and elasticity of the second elastomer is greater than that of the first elastomer.

2. The elastic cushion according to claim 1, wherein compression of the elastic cushion is not more than 80%.

3. The elastic cushion according to claim 1, wherein elastic coefficient of each of the elastic monomers is equal.

4. The elastic cushion according to claim 3, wherein the elastic coefficient of each of the elastic monomers is 50 to 750 N/m, and there are 200 to 800 elastic monomers per m.sup.2.

5. The elastic cushion according to claim 4, wherein the elastic coefficient of each of the elastic monomers is 350 N/m, and there are 400 elastic monomers per m.sup.2.

6. The elastic cushion according to claim 1, wherein the elastic monomer is a single spring, and a radius and elastic coefficient of the spring are equal everywhere along its axial direction.

7. The elastic cushion according to claim 1, wherein the elastic monomer comprises two springs, a first spring and a second spring, sleeved from outside to inside, a radius and elastic coefficient of the first spring are equal everywhere along its axial direction, and a radius and elastic coefficient of the second spring gradually decrease from bottom to top along its axial direction.

8. The elastic cushion according to claim 1, wherein the second elastic body further comprises a guide for installing and guiding the elastic monomer, the guide being arranged on an inner wall of the wear resistant sleeve corresponding to each of the accommodating cavities.

9. The elastic cushion according to claim 8, wherein the guide comprises a base and a guide pole, the base being round or oval, the guide pole being arranged on the base, the guide pole being tapered towards a free end thereof, the elastic monomer being sleeved on the guide pole, a height of the compressed elastic monomer being not less than a height of the guide pole, and after the elastic monomer is compressed, the guide not affecting comfort of the elastic cushion.

10. The elastic cushion according to claim 1, wherein the first elastomer is made of a foaming material, and the second elastomer and the first elastomer form an integrated structure by foaming.

11. The elastic cushion according to claim 2, wherein the second elastic body further comprises a guide for installing and guiding the elastic monomer, the guide being arranged on an inner wall of the wear resistant sleeve corresponding to each of the accommodating cavities.

12. The elastic cushion according to claim 11, wherein the guide comprises a base and a guide pole, the base being round or oval, the guide pole being arranged on the base, the guide pole being tapered towards a free end thereof, the elastic monomer being sleeved on the guide pole, a height of the compressed elastic monomer being not less than a height of the guide pole, and after the elastic monomer is compressed, the guide not affecting comfort of the elastic cushion.

13. The elastic cushion according to claim 3, wherein the second elastic body further comprises a guide for installing and guiding the elastic monomer, the guide being arranged on an inner wall of the wear resistant sleeve corresponding to each of the accommodating cavities.

14. The elastic cushion according to claim 13, wherein the guide comprises a base and a guide pole, the base being round or oval, the guide pole being arranged on the base, the guide pole being tapered towards a free end thereof, the elastic monomer being sleeved on the guide pole, a height of the compressed elastic monomer being not less than a height of the guide pole, and after the elastic monomer is compressed, the guide not affecting comfort of the elastic cushion.

15. The elastic cushion according to claim 5, wherein the second elastic body further comprises a guide for installing and guiding the elastic monomer, the guide being arranged on an inner wall of the wear resistant sleeve corresponding to each of the accommodating cavities.

16. The elastic cushion according to claim 15, wherein the guide comprises a base and a guide pole, the base being round or oval, the guide pole being arranged on the base, the guide pole being tapered towards a free end thereof, the elastic monomer being sleeved on the guide pole, a height of the compressed elastic monomer being not less than a height of the guide pole, and after the elastic monomer is compressed, the guide not affecting comfort of the elastic cushion.

17. The elastic cushion according to claim 6, wherein the second elastic body further comprises a guide for installing and guiding the elastic monomer, the guide being arranged on an inner wall of the wear resistant sleeve corresponding to each of the accommodating cavities.

18. The elastic cushion according to claim 17, wherein the guide comprises a base and a guide pole, the base being round or oval, the guide pole being arranged on the base, the guide pole being tapered towards a free end thereof, the elastic monomer being sleeved on the guide pole, a height of the compressed elastic monomer being not less than a height of the guide pole, and after the elastic monomer is compressed, the guide not affecting comfort of the elastic cushion.

19. The elastic cushion according to claim 7, wherein the second elastic body further comprises a guide for installing and guiding the elastic monomer, the guide being arranged on an inner wall of the wear resistant sleeve corresponding to each of the accommodating cavities.

20. The elastic cushion according to claim 19, wherein the guide comprises a base and a guide pole, the base being round or oval, the guide pole being arranged on the base, the guide pole being tapered towards a free end thereof, the elastic monomer being sleeved on the guide pole, a height of the compressed elastic monomer being not less than a height of the guide pole, and after the elastic monomer is compressed, the guide not affecting comfort of the elastic cushion.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0022] FIG. 1 is a schematic diagram of an internal structure of Embodiment 1 of the present disclosure;

[0023] FIG. 2 is a partial cross-sectional view of Embodiment 1 of the present disclosure;

[0024] FIG. 3 is a schematic structural diagram of an elastic monomer of Embodiment 2 of the present disclosure;

[0025] FIG. 4 is a schematic structural diagram of an elastic monomer of Embodiment 3 of the present disclosure;

[0026] FIG. 5 is a schematic structural diagram of a guide of Embodiment 4 of this disclosure;

[0027] FIG. 6 is a schematic structural diagram of an elastic monomer sleeved on the guide in Embodiment 4 of this disclosure; and

[0028] FIG. 7 is a partial cross-sectional view of Embodiment 5 of the present disclosure.

DETAILED DESCRIPTION

[0029] In the following, detailed and complete description of the present disclosure will be made in combination with specific embodiments with reference to the drawings.

Embodiment 1

[0030] Referring to FIGS. 1 and 2, an elastic cushion according to this embodiment includes a first elastic body 1, a second elastic body 2 and a sleeve body 3. The second elastic body 2 includes a wear resistant sleeve 21 with a plurality of independent accommodating cavities 211 and a plurality of elastic monomers 22 arranged in the accommodating cavities 211 in one-to-one correspondence. The first elastic body 1 is a sponge with high resiliency/low rebound, the elastic monomer 22 is a high-strength wire spring with a wire diameter of 1.4 mm, a coil diameter of 4 cm and an overall height of 3 to 5 cm, and the wear resistant sleeve 21 is thickened non-woven fabric. The elastic coefficient of each of the elastic monomers 22 is equal and is 350 N/m, and a radius and elastic coefficient of each of the elastic monomer 22 is equal everywhere along its axial direction. There are 400 elastic monomers 22 per m.sup.2, and all of the elastic monomers 22 are arranged in rows.

[0031] When the first elastic body 1 is foamed to be molded, the second elastic body 2 is placed into a mold as a whole, and the second elastic body 2 and the first elastic body 1 are fused into an integrated structure. Then, an inner sleeve 31 made of 100% polyester and an outer sleeve 32 made of polyester fiber are sequentially cladded outside the first elastic body 1 so as to obtain the elastic cushion.

[0032] The elastic cushion with a specification of 420 mm*420 mm*77.3 mm was tested for its compression resistance at a test speed of 100 mm/min. Specific results are shown in Table 1 below.

TABLE-US-00001 TABLE 1 Compression resistance test results of elastic cushion Item Result Requirement Conclusion Indentation 60 kg 55.4 mm / / depth 100 kg 61.7 mm / / Compression 60 kg 71.7% ?75% pass percentage 100 kg 79.8% ?85% pass

Embodiment 2

[0033] Referring to FIGS. 2 and 3, and different from Embodiment 1, the elastic coefficient of each of the elastic monomers 22 in this embodiment decreases gradually from bottom to top along its axial direction, that is, elastic coefficient of an upper section 221 of the elastic monomer is smaller, elastic coefficient of a lower section 222 of the elastic monomer is larger. The upper section 221 is more flexible, so that when the elastic cushion deforms, the elastic cushion deforms according to the first spring 223 and load bearing, and fit between the elastic cushion and a surface of the human body can be ensured; and the lower section 222 is harder and can provide more stable support in use.

Embodiment 3

[0034] Referring to FIGS. 2 and 4, and different from Embodiment 1, each of the elastic monomers 22 of this embodiment includes two springs, a first spring 223 and a second spring 224, sleeved from outside to inside, a radius and elastic coefficient of the first spring 223 are equal everywhere along its axial direction, and a radius and elastic coefficient of the second spring 224 gradually decrease from bottom to top along its axial direction. A structure with the two springs can effectively disperse the acting force, keep the elasticity stable, and can bear repeated extreme impacts.

Embodiment 4

[0035] Referring to FIGS. 2, 5 and 6, and different from the Embodiment 1, a guide 4 is further provided in this embodiment, which guides expansion and contraction of the elastic monomer 22. The guide 4 is of an integrated structure, including a base 41 and a guide pole 42. The base 41 is fixed to an inner wall of the wear resistant sleeve 21, and the guide pole 42 is tapered towards a free end thereof to form a trumpet-shaped structure. The elastic monomer 22 is sleeved on the guide pole 42, and an end of the elastic monomer 22 is fixed to the base 41, so that the elastic monomer 22 may not come off from the guide 4. A height of the compressed elastic monomer 22 is smaller than a height of the guide pole 42, which will not affect comfort in use.

Embodiment 5

[0036] Referring to FIG. 7, and different from Embodiment 1, after the first elastic body 1 is foamed to be molded, the middle of the first elastic body 1 is cut to form a plurality of mounting grooves 11, and the second elastic body 2 is arranged in the mounting grooves 11, so that a structure in which the second elastic body 2 and the first elastic body 1 are spaced apart can be formed.

[0037] The above is only preferred embodiments of the present disclosure, which does not limit a protection scope of the present disclosure. Any equivalent structural transformation made with the specification and drawings of the present disclosure, which is directly or indirectly applied to other related technical fields, is included within the scope of the disclosure.