CN219982258U

CN219982258U - Sole and shoes

Info

Publication number: CN219982258U
Application number: CN202222444262.XU
Authority: CN
Inventors: 蔡立君
Original assignee: Zhongshan Jingrui San'an Rubber And Plastic Mould Products Co ltd
Current assignee: Zhongshan Jingrui San'an Rubber And Plastic Mould Products Co ltd
Priority date: 2022-03-28
Filing date: 2022-09-15
Publication date: 2023-11-10
Anticipated expiration: 2032-09-15

Abstract

The utility model discloses a sole, a method for preparing the sole and a shoe, wherein the sole comprises the following components: a cavity, a bendable resilient member disposed in the sole portion or/and the sole heel portion, is mounted in the cavity. The sole has the advantages of simple structure, strong rebound resilience, good damping effect and portability. The preparation method disclosed by the utility model is simple in process, convenient to manufacture and good in damping and rebound effects of finished products.

Description

Sole and shoes

Technical Field

The present utility model relates to a sole, and to a shoe comprising the sole.

Background

Shoes are an indispensable daily article in daily life, and soles are important parts of shoes. When a person walks, the foot has acting force on the ground, the ground can generate reaction force on the foot, and uncomfortable feeling such as ache is easily generated after the person walks for a long time. The common soles in the prior art generally have no damping design, and the shoes can not cushion the reaction force generated by the feet and are easy to damage the joints of the legs after long-time walking. Or soles with damping effect are also available in the market at present, but the damping effect is poor or the manufacturing cost is high. The rebound resilience and shock absorption of the sole of the utility model are greatly improved without increasing weight, and the manufacturing process is simple and easy to implement.

Disclosure of Invention

The utility model aims to overcome the defects in the prior art and provides the sole which is simple in structure, strong in rebound resilience, good in damping effect and light.

Another object of the present utility model is to provide a shoe comprising the sole as described above.

In order to achieve the first object, the present utility model adopts the following technical scheme:

a sole, comprising:

a cavity arranged at the sole part or/and the heel part of the sole,

a bendable resilient member is mounted within the cavity.

The sole comprises a midsole and an outsole, the cavity is arranged in the midsole, the shape and the size of the bendable rebound member are matched with those of the cavity, and the top surface of the bendable rebound member is attached to the inner bottom surface of the cavity. And the sole is adhered to the bottom surface of the midsole. The sole part or/and the sole heel part of the sole can have good shock absorption effect by the bendable rebound member arranged in the sole.

As a further improvement of the sole of the present utility model, a two-piece resilient member is provided between the bendable resilient member and the bottom of the cavity.

As an improvement of one of the two-stage resilient members of the present utility model, the two-stage resilient member is an elastomeric support column having one end bonded to the bottom surface of the flexible resilient member.

As another improvement of the two-section rebound member, the two-section rebound member is an elastic square block or an elastic ball.

According to the utility model, the elasticity of the sole can be further improved by arranging the two sections of rebound pieces between the bendable rebound member and the bottom of the cavity, and meanwhile, the cavity bendable rebound member can be elastically supported, so that the rebound resilience of the bendable rebound member is effectively improved.

As another improvement of the sole of the present utility model, the bendable resilient member is a carbon fiber composite or a composite containing a carbon fiber composite.

As another improvement of the sole, the compound material is a mixture of carbon fiber composite material and at least one of glass fiber, aramid fiber and high molecular weight polyethylene fiber.

The bendable rebound member is formed by using a carbon fiber composite material or a compound material containing the carbon fiber composite material through high-temperature high-pressure compression molding of a metal mold with a specific mold cavity shape.

The flexible rebound member has continuous and stable quality, consistent design size, high bending strength and excellent elasticity after being pressed after being subjected to hot press molding by a die.

As another improvement of the sole of the utility model, the cavity is arranged along the width direction of the sole, and the width of the cavity is larger than 1/2 of the width of the sole part or the heel part of the sole.

As a further improvement of the sole of the present utility model, the cavity is provided in the heel portion of the sole and has a depth of greater than 6mm relative to the bottom surface of the heel portion of the sole.

As another improvement of the sole, the cavity is arranged at the sole part of the sole, and the depth of the cavity relative to the bottom surface of the sole part of the sole is more than 3mm.

The preferred value of the heel cavity according to the utility model is greater than 3/5 of the heel width of the sole to approximately the heel width, the dimension of the cavity in the length direction of the sole is greater than 8mm, the dimension of the cavity in the thickness direction of the sole, i.e. the depth of the cavity, is greater than 6mm, the preferred value being 10 to 20mm.

The preferred value of the sole portion cavity of the utility model is from 3/5 greater than the sole width to approximately the sole width, the dimension of the cavity along the length direction of the sole is greater than 8mm, the dimension of the cavity along the thickness direction of the sole, i.e. the depth of the cavity is greater than 3mm, and the preferred value is from 5 to 8mm.

As another improvement of the sole of the present utility model, the bendable resilient member is in the shape of an arch with the arch portion of the bendable resilient member facing in the direction of the upper.

The middle part of the arched part of the bendable rebound member is flat, the shape can bear pedaling impact force far better than an arc shape, and the arc shape is easy to crack due to larger angle of reverse folding after being stepped by a large force, and meanwhile, the middle part is flat, so that the comfort of the foot is also facilitated.

As another improvement of the sole of the present utility model, the vertical distance of the arch center of the bendable resilient member with respect to the line connecting the two ends is greater than 3mm. The thickness dimension of the bendable resilient member is greater than 1mm, and the dimension of the bendable resilient member in the length direction of the shoe, i.e., the width dimension of the bendable resilient member, is greater than 8mm.

In the scheme of the utility model, the change of the shoe outsole is not involved.

In the scheme of the utility model, the insole is changed in that a cavity with a specific shape is arranged at the sole part or/and the sole heel part, and the design matched with the bendable rebound member is carried out at the sole part or/and the sole heel part of the insole forming mould.

The sole of the utility model is suitable for sports shoes, leather shoes, mountain climbing shoes and the like.

In order to achieve the second object, the present utility model adopts the following technical scheme:

the method for preparing the sole according to any one of the above is characterized by comprising the following steps:

s1, forming a cavity at the sole part or/and the sole heel part of the midsole;

s2, mounting the prepared bendable rebound member in the cavity; wherein the bendable resilient member is prepared by the method of:

s21, cutting the carbon fiber composite material prepreg according to the unfolding length and width of the elastic member;

s22, stripping the release paper on the surface layer of the cut carbon fiber composite material prepreg, and overlapping the carbon fiber composite material prepreg layer by layer according to the same fiber direction until the required thickness is reached;

s23, placing the carbon fiber composite material prepreg with the superimposed layers into a metal mold with an elastic member-shaped cavity, placing the metal mold into a workbench of a rubber flat plate hot press forming machine, and setting the working parameters of the rubber flat plate hot press forming machine to be 50kgf/cm in pressure ² Starting the rubber flat plate hot-press forming machine at 125 ℃ for 10 minutes, and taking out after the working cycle is completed to obtain the bendable rebound member;

and S3, adhering the outsole to the midsole.

In order to achieve the third object, the present utility model adopts the following technical scheme:

a shoe comprising a sole as claimed in any one of the preceding claims.

In summary, compared with the prior art, the utility model has the following beneficial effects:

1. when the sole is stepped on by the foot, the arched area of the bendable rebound member is bent downwards after being pressed, the bendable rebound member can easily bear the stepping strength of a human body due to the shape and the forming process of the bendable rebound member and the high tensile strength characteristic of the carbon fiber composite material along the fiber direction, and simultaneously, the bendable rebound member can rapidly give the rebound response to the sole due to the high elastic modulus characteristic of the carbon fiber composite material.

2. The sole of the present utility model can easily achieve further increase in the load-bearing strength of the flexible resilient member to accommodate the body weight of different shoe sizes by increasing the width and thickness dimensions of the flexible resilient member.

3. The arch area of the bendable resilient member is further compressed in the ground direction as the pedaling force increases, like a tight arch, giving the sole a larger upward resilience.

4. The sole can easily realize the increase of the rebound stroke of the sole by increasing the depth of the cavity and the vertical distance of the arched part of the bendable rebound member, thereby realizing better shock absorption during movement and protecting joints of a human body.

5. The maximum designed rebound stroke of the sole and the shoe can be close to the thickness of the heel of the whole sole, for example, the maximum rebound stroke of a shoe with the thickness of 2.5 and cm of the heel of a pair of soles can reach 2.0cm through design, and the rebound stroke of other shoes on the market at present depends on the instant release distance of the sole material after being compressed, even the ETPU sole with excellent rebound is usually not more than 0.6cm.

Drawings

FIG. 1 is a schematic view of the sole of the present utility model.

Figure 2 is a cross-sectional view of the sole of the utility model at the heel cavity.

Fig. 3 is a schematic view of a bendable resilient member of the present utility model.

Fig. 4 is a schematic view of the combination of the bendable resilient member of the present utility model and a two-piece resilient member.

Detailed Description

The above and further technical features and advantages of the present utility model are described in more detail below with reference to the accompanying drawings.

Preferred embodiments of the present utility model are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are merely for explaining the technical principles of the present utility model, and are not intended to limit the scope of the present utility model.

It should be noted that, in the description of the present utility model, terms such as "upper," "lower," "left," "right," "inner," "outer," and the like indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, which are merely for convenience of description, and do not indicate or imply that the apparatus or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Example 1

The sole comprises a midsole 1 and an outsole 2, wherein a cavity 3 is arranged in a sole heel part 11 of the midsole 1, the width of the cavity 3 is 2/3 of the width of the sole heel part, and the cavity 3 is arranged in the sole heel part 11 and has a depth of 8mm relative to the bottom surface of the sole heel part 11.

A bendable rebound member 4 is installed in the cavity 3, the bendable rebound member 4 is matched with the shape and the size of the cavity 3, the bendable rebound member 4 is in an arch shape, and the vertical distance between the middle position of the arch part of the bendable rebound member 4 and the connecting line of the two ends is 8mm. And, the top surface of the bendable resilient member 4 is in abutment with the inner bottom surface of the cavity. The outsole 2 is adhered to the bottom surface of the midsole 1.

Example 2

The sole comprises a midsole 1 and an outsole 2, wherein a cavity 3 is arranged in a sole portion 12 of the midsole 1, the cavity 3 is arranged along the width direction of the sole, the width of the cavity 3 is 3/5 of the width of the sole portion, and the cavity 3 is arranged in the sole portion 12 and has a depth of 7mm relative to the bottom surface of the sole portion 12.

A bendable resilient member 4 is installed in the cavity 3, the bendable resilient member 4 is matched with the shape and the size of the cavity 3, the bendable resilient member 4 is in an arch shape, and the vertical distance between the middle position of the arch part of the bendable resilient member 4 and the connecting line of the two ends is 7mm. And, the top surface of the bendable resilient member 4 is in abutment with the inner bottom surface of the cavity. The outsole 2 is adhered to the bottom surface of the midsole 1.

Example 3

A sole comprising a midsole 1 and an outsole 2, a cavity 3 being provided in the sole heel portion 11 of the midsole 1 and in the sole portion 12 of the midsole 1, respectively, the width of the cavity 3 being 4/5 of the width of the sole heel portion 11 and 4/5 of the width of the sole portion 12, respectively, wherein the depth of the cavity 3 in the sole heel portion 11 is 20mm. Wherein the depth of the cavity 3 in the sole portion 12 is 8mm.

A bendable rebound member 4 is installed in the cavity 3, the bendable rebound member 4 is matched with the shape and the size of the cavity 3, the bendable rebound member 4 is in an arch shape, and the vertical distance between the middle position of the arch part of the bendable rebound member 4 in the cavity 3 of the heel part 11 of the sole and the connecting line of two ends is 20mm. The vertical distance between the middle position of the arch portion of the bendable resilient member 4 located in the cavity 3 of the sole portion 12 and the connecting line of the two ends is 7mm. And, the top surface of the bendable resilient member 4 is in abutment with the inner bottom surface of the cavity. The outsole 2 is adhered to the bottom surface of the midsole 1.

The soles according to examples 1-3 of the present utility model can be manufactured by the manufacturing method according to example 4,

example 4

A method for preparing a sole, comprising the steps of:

s1, forming a cavity at the sole part or/and the sole heel part of the midsole;

s23, placing the carbon fiber composite material prepreg with the superimposed layers into a metal mold with an elastic member-shaped cavity, placing the metal mold into a workbench of a rubber flat plate hot-press forming machine, and carrying out working parameters of the rubber flat plate hot-press forming machineIs set to a pressure of 50kgf/cm ² Starting the rubber flat plate hot-press forming machine at 125 ℃ for 10 minutes, and taking out after the working cycle is completed to obtain the bendable rebound member;

and S3, adhering the outsole to the midsole.

Example 5

On the basis of embodiment 1, in addition, a plurality of two-segment rebound pieces 5 are arranged at intervals between the bendable rebound member and the bottom of the cavity. The two-stage resilient member is an elastomeric support column having one end bonded to the bottom surface of the flexible resilient member.

Example 6

On the basis of embodiment 2, in addition, a plurality of two-segment rebound pieces 5 are provided at intervals between the bendable rebound member and the bottom of the cavity. The two-stage resilient member is an elastomeric support column having one end bonded to the bottom surface of the flexible resilient member.

Example 7

On the basis of embodiment 3, in addition, a plurality of two-segment rebound pieces 5 are provided at intervals between the bendable rebound member and the bottom of the cavity. The two-section rebound piece is an elastic square block or an elastic ball.

Example 8

Based on the embodiments 1-3 or 5-7, the midsole 1 is made of EPDM rubber material.

Example 9

Based on the embodiments 1-3 or 5-7, the midsole 1 is made of EVA materials.

Example 10

Based on the embodiment 1-3 or 5-7, the midsole 1 is made of PU material.

Example 11

The present utility model is a shoe comprising the sole of any one of embodiments 1-3 and 5-10.

To further verify the excellent performance of the sole of the present utility model, the present utility model was tested as follows:

the rebound performance of soles made of different materials was measured by experiments, in which 1 transparent organic glass tube with an inner diameter of 5.5cm and a height of 150cm was used to stand at the middle position of the heel of the sole, then a round balancing weight with a mass of 1kg and a diameter of 5.4cm was freely dropped from a glass tube orifice with a height of 150cm, and the rebound height of the balancing weight was measured, and the measurement results of comparative examples not carrying out the utility model and examples carrying out the utility model were shown in the following table.

As can be seen from the experimental results in the table, the rebound resilience of the sole can be greatly increased by implementing the utility model.

Because of the cavity design of the heel part of the sole, the volume of the cavity is several times that of the elastic component which is put in the cavity, and the density of the elastic component made of the carbon fiber composite material is only about 1.8g/cm < 3 >, the utility model can also lighten the weight of the sole and improve the portability of the shoe.

Claims

1. A sole, characterized by comprising:

a cavity arranged at the sole part or/and the heel part of the sole,

a bendable resilient member mounted within the cavity;

the bendable rebound member is in an arch shape, the arch part faces the vamp direction, and the middle part of the arch part is flat and straight;

two sections of rebound pieces are arranged between the bendable rebound member and the bottom of the cavity.

2. A sole as claimed in claim 1, wherein: the cavity is arranged along the width direction of the sole, and the width of the cavity is larger than 1/2 of the width of the sole or the heel of the sole.

3. A sole according to claim 1 or 2, characterized in that: the cavity is disposed in the sole heel portion and has a depth of greater than 6mm relative to the bottom surface of the sole heel portion.

4. A sole according to claim 1 or 2, characterized in that: the cavity is arranged at the sole part of the sole, and the depth of the cavity relative to the bottom surface of the sole part of the sole is more than 3mm.

5. A sole as claimed in claim 4, wherein: the vertical distance between the middle position of the arch part of the bendable rebound member and the connecting line of the two ends is larger than 3mm.

6. A shoe comprising a sole according to any one of claims 1 to 5.