Air cushion sole

Abstract

The utility model relates to the technical field of soles, in particular to an air cushion sole which comprises a sole body and an air cushion, the sole body is formed through injection molding, the air cushion is connected with the sole body through injection molding, the sole body is provided with an installation cavity matched with the air cushion, at least one positioning hole is formed in the air cushion in a penetrating mode, and the air cushion is connected with the installation cavity. According to the air cushion shoe, the fixing parts are arranged on the shoe sole body to be matched with the positioning holes of the air cushion, so that the connection firmness of the air cushion and the shoe sole body is improved, and even if the time for wearing the air cushion shoe is accumulated, the air cushion shoe is not prone to falling off. The air cushion can be firmly attached to the shoe sole body, and the air cushion cannot be dislocated or deviated.

Description

Technical Field

[0001] The utility model relates to the technical field of shoe soles, in particular to an air-cushioned shoe sole. Background Art

[0002] With the improvement of people's living standards and material needs, people's demand for the comfort of shoes is also getting higher and higher. The material of the shoe sole plays a key role in the comfort of shoes, and the shock absorption performance of the shoe sole is also an aspect of comfort. Usually, an air cushion is arranged on the shoe sole to improve the shock absorption performance. When walking in air-cushioned shoes, the air cushion greatly reduces the impact force on the foot from the ground.

[0003] Patent CN201888322U discloses an air-cushioned shoe, in which an air cushion is arranged at the heel part of the shoe sole and is injection-molded in the inner cavity of the shoe sole. However, this technical solution still has the problem that the connection between the air cushion and the shoe sole is not firm. During actual wearing and use, the shoe sole will bend dynamically following the foot, and the air cushion will also be deformed under pressure. As the wearing time increases, gaps will appear at the joint between the air cushion and the shoe sole, and finally the air cushion will be displaced. Content of the Utility Model

[0004] The purpose of the utility model is to overcome the defects and deficiencies existing in the prior art, and provide an air-cushioned shoe sole. By arranging a fixing part on the shoe sole body to cooperate with the positioning holes of the air cushion, the connection firmness between the air cushion and the shoe sole body is improved. Even if the wearing time of the air-cushioned shoes accumulates, the air cushion and the shoe sole body can still be firmly attached, and the air cushion will not be displaced.

[0005] The technical solution adopted by the utility model is as follows: an air-cushioned shoe sole, including a shoe sole body and an air cushion. The shoe sole body is injection-molded, the air cushion is connected to the shoe sole body by injection molding. An installation cavity adapted to the air cushion is arranged on the shoe sole body. At least one positioning hole penetrates through the air cushion. The number of fixing parts in the installation cavity is the same as that of the positioning holes and is fitted with the corresponding positioning holes.

[0006] There is one positioning hole located at the center of the air cushion. The positioning hole is a round hole, and first round corners are provided at both ends of the positioning hole.

[0007] The cross-section of the air cushion is rectangular.

[0008] The installation cavity penetrates through the side wall of the shoe sole body, and an arc surface protrudes from both sides of the air cushion towards the opening direction of the installation cavity.

[0009] The air cushion is further provided with upper concave pits and lower concave pits formed by bonding the upper surface and the lower surface. The opening direction of the upper concave pits faces the upper surface, and the opening direction of the lower concave pits faces the lower surface. An upper support portion and a lower support portion that respectively fit with the upper concave pits and the lower concave pits are further protruded inside the installation cavity.

[0010] The depth of the upper concave pits is greater than that of the lower concave pits.

[0011] The depth of the upper concave pits is less than that of the lower concave pits.

[0012] A plurality of upper concave pits and lower concave pits are provided. The number of the upper support portions and the lower support portions is equivalent to that of the upper concave pits and the lower concave pits. A plurality of the upper concave pits and the lower concave pits are also distributed around the positioning hole.

[0013] The edges of the upper concave pits and the lower concave pits are both chamfered with second round corners.

[0014] The cross sections of a plurality of upper concave pits far from the positioning hole are oblong, and the shapes of the lower concave pits correspond to those of the upper concave pits on the same axis.

[0015] The beneficial effects of the present utility model are as follows: By arranging the fixing portion on the sole body to cooperate with the positioning hole of the air cushion, the fixing portion is integrally formed with the sole body during the injection molding of the sole body, and is made of the same material as the sole body, which improves the connection firmness between the air cushion and the sole body. Even if the time of wearing the air cushion shoes accumulates, the air cushion and the sole body can still be firmly attached, and the air cushion will not be displaced or offset. Moreover, under the cooperation of the fixing portion and the positioning hole, the force on the air cushion is more uniform, preventing one side of the air cushion from being excessively worn or deformed, greatly reducing the risk of the air cushion bulging and leaking air, and also being able to provide a better shock absorption effect on the foot. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, obtaining other drawings without creative efforts still belongs to the scope of the present utility model.

[0017] Figure 1 It is a schematic structural diagram of the air cushion sole of the present utility model;

[0018] Figure 2 It is a schematic structural diagram of the air cushion in the present utility model;

[0019] Figure 3 It is a partial enlarged schematic diagram of the installation cavity in the present utility model;

[0020] Figure 4 It is the top view, the sectional view in the A-A direction, and the sectional view in the B-B direction of the present utility model;

[0021] In the figure, 1-sole body, 2-air cushion, 3-installation cavity, 4-positioning hole, 5-fixing part, 6-first fillet, 7-arc surface, 8-upper concave pit, 9-lower concave pit, 10-upper support part, 11-lower support part, 12-second fillet. Specific embodiments

[0022] To make the objectives, technical solutions and advantages of the present utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0023] It should be noted that all the expressions using "first" and "second" in the embodiments of the present utility model are used to distinguish two entities or parameters with the same name but different, so it can be seen that "first" and "second" are only for the convenience of expression and should not be construed as a limitation on the embodiments of the present utility model. This will not be elaborated one by one in the subsequent embodiments.

[0024] The direction and position terms mentioned in the present utility model, such as "upper", "lower", "front", "rear", "left", "right", "inner", "outer", "top", "bottom", "side", etc., are only the directions or positions with reference to the accompanying drawings. Therefore, the direction and position terms used are for explaining and understanding the present utility model, rather than a limitation on the protection scope of the present utility model.

[0025] As Figures 1 to 4 shown, it is an embodiment of the present utility model, an air-cushioned sole, including a sole body 1 and an air cushion 2. The sole body 1 is injection molded, and the air cushion 2 is connected to the sole body 1 by injection molding. An installation cavity 3 adapted to the air cushion 2 is provided on the sole body 1. At least one positioning hole 4 penetrates through the air cushion 2, and a fixing part 5 with a quantity corresponding to that of the positioning hole 4 and fitting with the corresponding positioning hole 4 is provided inside the installation cavity 3.

[0026] The beneficial effects of such a setting are as follows. The present utility model improves the connection firmness between the air cushion and the sole body by providing a fixing part on the sole body to cooperate with the positioning hole of the air cushion. The fixing part is integrally formed with the sole body during the injection molding of the sole body and is made of the same material as the sole body. Even if the wearing time of the air-cushioned shoes accumulates, the air cushion and the sole body can still fit firmly, and the air cushion will not be misaligned or offset. Moreover, under the cooperation of the fixing part and the positioning hole, the force on the air cushion is more uniform, preventing excessive wear or excessive deformation on one side of the air cushion, greatly reducing the risk of the air cushion bulging and leaking air, and also being able to provide a better shock-absorbing effect on the foot.

[0027] Further setting: There is one positioning hole 4 which is located at the center of the air cushion 2. The positioning hole 4 is a round hole, and the edges at both ends of the positioning hole 4 are chamfered with a first fillet 6.

[0028] The beneficial effects of such setting are as follows: Multiple positioning holes and fixing parts can be set, and the shapes of the positioning holes can also be diverse, such as square or irregular shapes, to further improve the connection firmness between the air cushion and the sole body. In this embodiment, there is one positioning hole penetrating the center of the air cushion vertically. When the air cushion is pressed, it can deform evenly, and the fixing part at the center can also provide a certain supporting effect to limit the deformation range of the air cushion. The first fillet increases the contact area between the positioning hole and the fixing part, prevents stress concentration, and can ensure a good fit with the sole body when the air cushion deforms, enabling the air cushion to play a better role. The first fillet can guide the raw material to pour into the positioning hole during injection molding.

[0029] Further setting: The cross-section of the air cushion 2 is rectangular.

[0030] Further setting: The installation cavity 3 penetrates the side wall of the sole body 1, and an arc surface 7 protrudes from the air cushion 2 in the opening directions on both sides of the installation cavity 3 respectively.

[0031] The beneficial effects of such setting are as follows: The arc surfaces on both sides provide space for the deformation of the air cushion. The arc surfaces are complete surfaces to avoid air leakage of the air cushion.

[0032] Further setting: An upper concave pit 8 and a lower concave pit 9 formed by bonding the upper surface and the lower surface are further provided on the air cushion 2. The opening direction of the upper concave pit 8 faces the upper surface, and the opening direction of the lower concave pit 9 faces the lower surface. An upper support part 10 and a lower support part 11 that respectively fit with the upper concave pit 8 and the lower concave pit 9 protrude inside the installation cavity 3.

[0033] The beneficial effects of such setting are as follows: Through the cooperation between the upper concave pit and the upper support part and the cooperation between the lower concave pit and the lower support part, the connection firmness between the sole body and the air cushion is further improved. The upper concave pit and the lower concave pit adopt a non-through structure. Compared with the through structure of the positioning hole, the upper concave pit and the lower concave pit are simpler to process and have diverse shapes, not limited to round holes. Bonding the upper surface and the lower surface of the air cushion can form a pair of upper concave pits and lower concave pits. The upper support part and the lower support part are integrally formed with the shoe body during injection molding of the shoe body. The upper support part provides a certain supporting force when the air cushion deforms, and the lower support part limits the deformation amplitude of the air cushion to a certain extent.

[0034] Further setting: The depth of the upper concave pit 8 is greater than that of the lower concave pit 9.

[0035] The beneficial effects of such setting are as follows: The upper support part cooperating with the upper concave pit provides a greater supporting force, and the lower support part cooperating with the lower concave pit limits a greater deformation amplitude of the air cushion.

[0036] Further setting: the depth of the upper concave pit 8 is less than that of the lower concave pit 9.

[0037] The beneficial effects of such a setting are as follows: the upper supporting part cooperating with the upper concave pit provides a relatively small supporting force, and the lower supporting part cooperating with the lower concave pit limits the relatively small deformation range of the air cushion.

[0038] Further setting: a plurality of the upper concave pits 8 and the lower concave pits 9 are provided, the numbers of the upper supporting part 10 and the lower supporting part 11 are equivalent to those of the upper concave pits 8 and the lower concave pits 9, and the plurality of the upper concave pits 8 and the lower concave pits 9 also surround and distribute around the positioning hole 4.

[0039] The beneficial effects of such a setting are as follows: it further plays a role in making the air cushion bear force evenly.

[0040] Further setting: second round corners 12 are formed at the edges of both the upper concave pit 8 and the lower concave pit 9.

[0041] The beneficial effects of such a setting are as follows: the second round corner is the same as the first round corner, which can also increase the contact area, prevent stress concentration, and facilitate the injection molding raw materials to be poured into the upper concave pit and the lower concave pit.

[0042] Further setting: a plurality of the upper concave pits 8 far away from the positioning hole 4 have an oval cross-section, and the lower concave pit 9 corresponds to the upper concave pit 8 on the same axis in shape.

[0043] The beneficial effects of such a setting are as follows: the oval concave pits make the sizes of the matching supporting parts also increase, providing a larger contact area, making the area with a larger deformation range at the edge of the air cushion bear force evenly, and the deformation can also be more uniform, so that the air cushion provides a better shock absorption effect.

[0044] The above-disclosed is only the preferred embodiment of the present invention, and of course, it cannot be used to limit the scope of the rights of the present invention. Therefore, the equivalent changes made according to the claims of the present invention still fall within the scope covered by the present invention.

Claims

1. An air cushion sole, comprising a sole body (1) and an air cushion (2), wherein the sole body (1) is formed by injection molding, and the air cushion (2) is connected to the sole body (1) by injection molding, characterized in that: The sole body (1) is provided with a mounting cavity (3) adapted to the air cushion (2); the air cushion (2) is penetrated by at least one positioning hole (4); and the mounting cavity (3) is provided with fixing portions (5) whose number is equal to the positioning holes (4) and which fit in with the corresponding positioning holes (4).

2. The air cushion sole according to claim 1, characterized in that: There is one positioning hole (4) located at the centre of the air cushion (2); the positioning hole (4) is a circular hole; both end edges of the positioning hole (4) are provided with first rounded corners (6).

3. The air cushion sole according to claim 1, characterized in that: The cross section of the air cushion (2) is rectangular.

4. The air cushion sole according to claim 3, characterized in that: The installation cavity (3) passes through the side wall of the sole body (1), and the air cushion (2) has an arc surface (7) protruding towards the opening direction of both sides of the installation cavity (3).

5. The air cushion sole according to claim 1, characterized in that: The air cushion (2) is also provided with an upper recess (8) and a lower recess (9) formed by bonding the upper surface and the lower surface, the opening direction of the upper recess (8) is toward the upper surface, and the opening direction of the lower recess (9) is toward the lower surface, and the interior of the installation cavity (3) is also provided with an upper support portion (10) and a lower support portion (11) protruding from the inside thereof and respectively fitting with the upper recess (8) and the lower recess (9).

6. The air cushion sole according to claim 5, characterized in that: The upper concave pit (8) has a depth greater than that of the lower concave pit (9).

7. The air cushion sole according to claim 5, characterized in that: The upper concave pit (8) has a depth smaller than that of the lower concave pit (9).

8. The air cushion sole according to claim 5, characterized in that: A plurality of the upper recesses (8) and the lower recesses (9) are provided, the number of the upper support portions (10) and the lower support portions (11) is equal to the number of the upper recesses (8) and the lower recesses (9), and a plurality of the upper recesses (8) and the lower recesses (9) are also distributed around the positioning hole (4).

9. The air cushion sole according to claim 5, characterized in that: The edges of the upper pit (8) and the lower pit (9) are both provided with second rounded corners (12).

10. The air cushion sole according to claim 8, characterized in that: The plurality of upper recesses (8) away from the positioning hole (4) have an oblong cross-section, and the lower recesses (9) correspond in shape to the upper recesses (8) on the same axis.

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