CN211657505U

CN211657505U - Double-layer elastic sole

Info

Publication number: CN211657505U
Application number: CN202020089247.6U
Authority: CN
Inventors: 蓝世梁
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-01-16
Filing date: 2020-01-16
Publication date: 2020-10-13
Anticipated expiration: 2030-01-16

Abstract

The utility model relates to a double-layer elastic sole, which comprises a hard elastic foaming layer and a soft elastic foaming layer, wherein the hard elastic foaming layer is positioned at the outer side and covers the inner soft elastic foaming layer, the hardness of the hard elastic foaming layer is greater than that of the soft elastic foaming layer, the Shore hardness C of the hard elastic foaming layer is 45-65, and the Shore hardness C of the soft elastic foaming layer is 15-30, compared with the sole made of single foaming material in the prior art, the outer hard elastic foaming layer of the utility model has large hardness, good wear resistance and rigidity so as to ensure that the sole is not easy to wear and damage when in contact with the ground, the hardness of the inner soft elastic foaming layer is small, the soft elasticity is good, and when the stress of the hard elastic foaming layer is transmitted to the inner soft elastic foaming layer, the hard elastic foaming layer generates larger deformation, therefore, the sole has good rebound resilience, a pair of soles simultaneously takes wear resistance and rebound resilience into consideration, and actual requirements are met.

Description

Double-layer elastic sole

Technical Field

The utility model relates to a shoes field, concretely relates to double-deck elasticity sole.

Background

The shoe is an indispensable daily necessity in daily life of people, the common function of the shoe is to protect the foot from being damaged by the external environment and ensure the walking safety, the sole is an important component of the shoe, the sole is mainly used for bearing the foot of people to play a role in buffering and protecting, the most common sole in the market is a rubber foaming sole, the sole is formed by carrying out secondary foaming on the same EVA material (ethylene-vinyl acetate copolymer), a plurality of bubble holes are generated inside the sole during foaming so that the sole has good resilience, the shoe is widely used in sneakers, sports shoes, tourist shoes, liberation shoes, leisure shoes and the like, the sole prepared by foaming the same EVA material has the defects that different EVA materials have different foaming characteristics due to different contents of Vinyl Acetate (VA), and when the content of VA is increased, the resilience, the flexibility and the like, Adhesion, transparency, solubility, stress crack resistance and impact performance are all improved; when the content of VA is reduced, the rigidity, the wear resistance and the electrical insulation of EVA are increased, the sole has the requirements on rebound resilience, wear resistance and the like, the high rebound resilience is required, the content of VA is increased, the whole sole is softened, and the sole with reduced wear resistance is easy to damage after the reverse direction; the requirement of high abrasion resistance, the reduction of the VA content contributes to the increase of the service life of the sole, and the reverse causes the rebound resilience to reduce the overall stiffness of the sole, so that the sole is uncomfortable for a person to wear; to this end, the applicant has focused on a sole having both good wear resistance and good rebound resilience.

SUMMERY OF THE UTILITY MODEL

To the above-mentioned defect that prior art exists, the utility model provides a have good wearability promptly, have the double-deck elasticity sole of good resilience again, concrete technical scheme is as follows:

a double-layer elastic sole comprises a hard elastic foaming layer and a soft elastic foaming layer, wherein the hard elastic foaming layer is positioned on the outer side and covers the soft elastic foaming layer inside, and the hardness of the hard elastic foaming layer is greater than that of the soft elastic foaming layer.

As an optimized scheme of the utility model, the shore hardness C of hard elasticity foaming layer is 45 ~ 65, and the shore hardness C of soft elasticity foaming layer is 15 ~ 30.

As an optimized scheme of the utility model, the shore hardness C of hard elasticity foaming layer is 50 ~ 60, and the shore hardness C of soft elasticity foaming layer is 18 ~ 26.

As an optimal scheme of the utility model, hard foaming layer adopts VA content 10 ~ 18% EVA to form as the substrate foaming, and soft elasticity foaming layer adopts VA content 30 ~ 35% EVA to form as the substrate foaming.

As a preferred proposal of the utility model, the position of the soft elastic foaming layer in the hard elastic foaming layer is corresponding to the position of the heel of a human foot.

The utility model provides a double-deck elasticity sole, includes hard elasticity foaming layer and soft elasticity foaming layer, and hard elasticity foaming layer is located the bottom, and hard elasticity foaming layer bonding soft elasticity foaming layer, the position of soft elasticity foaming layer is soft corresponding to people heel department, and elasticity foaming layer contacts with people ankle, and the hardness on hard elasticity foaming layer is greater than soft elasticity foaming layer.

Has the advantages that: sole that only single foaming material made for prior art, the utility model discloses a hardness on the hard elasticity foaming layer in outside is big, thereby has good wearability, thereby the rigidity guarantees sole and the difficult wearing and tearing of ground contact damage, and hardness on inside soft elasticity foaming layer is little, matter soft elasticity is good, when hard elasticity foaming layer atress transmits inside soft elasticity foaming layer, produces bigger deformation to make the sole body have fine resilience, accomplish that a pair sole compromises wearability and resilience simultaneously, satisfies the actual demand.

Drawings

FIG. 1 is a layered structure diagram according to a first embodiment of the present invention;

FIG. 2 is a layered structure diagram according to a second embodiment of the present invention;

fig. 3 is an enlarged view of the double-layer elastic sole of the present invention in real object observed by using a microscope.

Detailed Description

The following description of the embodiments of the present invention will be made with reference to the accompanying drawings:

in the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the indicated position or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood as appropriate by those of ordinary skill in the art.

As shown in fig. 1, the first embodiment: a double-layer elastic sole comprises a hard elastic foaming layer 1 and a soft elastic foaming layer 2, wherein the hard elastic foaming layer 1 is located on the outer side and wraps the soft elastic foaming layer 2 inside, the soft elastic foaming layer 1 is located in the hard elastic foaming layer 2 and corresponds to the position of a human heel, when the double-layer elastic sole is placed on a shoe for use, the human heel is not in contact with the soft elastic foaming layer 2, and the hardness of the hard elastic foaming layer 1 is greater than that of the soft elastic foaming layer 2.

As shown in fig. 2, the second embodiment: a double-layer elastic sole comprises a hard elastic foaming layer 1 and a soft elastic foaming layer 2, wherein the hard elastic foaming layer 1 is located at the bottom, the hard elastic foaming layer 1 is bonded with the soft elastic foaming layer 2, the soft elastic foaming layer 2 corresponds to the position of a human heel, when the double-layer elastic sole is placed on a shoe for use, the human heel is in contact with the soft elastic foaming layer 2, and the hardness of the hard elastic foaming layer is greater than that of the soft elastic foaming layer.

Specifically, the Shore C hardness of the hard elastic foaming layer 1 is 45-65, and the Shore C hardness of the soft elastic foaming layer 2 is 15-30. Preferably, the Shore C hardness of the hard elastic foaming layer 1 is 50-60, and the Shore C hardness of the soft elastic foaming layer 2 is 18-26.

Specifically, the hard foaming layer is formed by foaming EVA with the VA content of 10-18% as a base material, the hard foaming layer is formed by foaming EVA with the VA content of 30-35% as the base material, the hard elastic foaming layer 1 and the soft elastic foaming layer 2 are provided with foaming pores, the number of the foaming pores of the hard elastic foaming layer 1 is small, only good elasticity needs to be kept for comfort of contact with a person, and the wear resistance is excessively reduced, and the number of the foaming pores of the soft elastic foaming layer 2 is large, only good elasticity needs to be kept, and the wear resistance does not need to be excessively considered.

To sum up, double-deck elasticity sole hard elasticity foaming layer 1 and soft elasticity foaming layer 2 are constituteed, thereby hard elasticity foaming layer 1 is harder guarantees that wearability, rigidity are guaranteed sole and the difficult wearing and tearing of ground contact damage, and the resilience is guaranteed to the softer of inside soft elasticity foaming layer, when making hard elasticity foaming layer atress transmit inside soft elasticity foaming layer, can produce big deformation to the whole resilience of sole is good.

The above description is provided for the purpose of describing the present invention in more detail with reference to the preferred embodiments, and it should not be construed that the present invention is limited to these descriptions, and it will be apparent to those skilled in the art that the present invention can be implemented in many ways without departing from the spirit and scope of the present invention.

Claims

1. A double-layer elastic sole is characterized in that: the foaming material comprises a hard elastic foaming layer and a soft elastic foaming layer, wherein the hard elastic foaming layer is positioned on the outer side and covers the soft elastic foaming layer inside, the hardness of the hard elastic foaming layer is greater than that of the soft elastic foaming layer, and the soft elastic foaming layer is positioned in the hard elastic foaming layer and corresponds to the position of a heel of a person.

2. The double-layer elastic shoe sole according to claim 1, wherein: the Shore hardness C of the hard elastic foaming layer is 45-65, and the Shore hardness C of the soft elastic foaming layer is 15-30.

3. The double-layer elastic shoe sole according to claim 2, wherein: the Shore hardness C of the hard elastic foaming layer is 50-60, and the Shore hardness C of the soft elastic foaming layer is 18-26.

4. A double-layer elastic sole is characterized in that: the sole comprises a hard elastic foaming layer and a soft elastic foaming layer, wherein the hard elastic foaming layer is positioned at the bottom and is adhered with the soft elastic foaming layer, the position of the soft elastic foaming layer corresponds to the position of a heel of a human foot, the soft elastic foaming layer is contacted with the ankle of the human foot, and the hardness of the hard elastic foaming layer is greater than that of the soft elastic foaming layer.