Lightweight multi-layer sole structure and lightweight running shoe

Abstract

The utility model relates to the technical field of shoes, concretely is a kind of lightweight multilayer shoe sole structure and lightweight running shoes, including by upper and lower sequentially arranged upper bottom layer, carbon plate layer, lower bottom layer and wear-resistant layer, upper bottom layer and lower bottom layer fixed connection, and the opposite surface between upper bottom layer and lower bottom layer is jointly enclosed to form cavity, carbon plate layer is adapted to be contained in cavity and is fixedly connected with the inner wall of cavity, wear-resistant layer is fixedly connected on the side surface of lower bottom layer deviating from upper bottom layer.The utility model is designed to multilayer to shoe sole, utilizes the lower bottom layer of thick thickness made of nylon board material foaming to be the main body of shoe sole, so that shoe sole can have good elasticity, and very light, reach the demand of lightweight, cooperate with the sheet wear-resistant layer made of polyurethane, so that lower bottom layer cannot be abraded, improve grip and prolong service life, improve the use comfort and experience of user, suitable for marathon and other running sports.

Description

Technical Field

[0001] This utility model relates to the field of footwear technology, specifically to a lightweight multi-layer sole structure and a lightweight running shoe. Background Technology

[0002] For those who love running, such as marathons, running shoes are essential. They provide support and cushioning for the runner's feet, making the exercise more comfortable and reducing the risk of sports injuries.

[0003] Nowadays, marathon runners usually have very high requirements for the weight of their shoes. Lightweight shoes can undoubtedly reduce the burden on runners and make running easier.

[0004] However, since the weight of a shoe is mainly concentrated in the sole, and traditional running shoe soles are often not lightweight enough, this can increase the burden on runners and affect the feeling of lightness and endurance while running. Therefore, this invention proposes a lightweight multi-layered sole structure and a lightweight running shoe to effectively solve the above-mentioned drawbacks. Utility Model Content

[0005] The purpose of this invention is to provide a lightweight multi-layer sole structure and a lightweight running shoe to solve the problems mentioned in the background art.

[0006] This utility model is achieved through the following technical solution: a lightweight multi-layer shoe sole structure, comprising an upper bottom layer, a carbon plate layer, a lower bottom layer and an abrasion-resistant layer arranged sequentially from top to bottom, wherein the upper bottom layer and the lower bottom layer are fixedly connected, and the opposing surfaces of the upper bottom layer and the lower bottom layer together enclose a cavity, the carbon plate layer is adapted to be housed in the cavity and fixedly connected to the inner wall of the cavity, and the abrasion-resistant layer is fixedly connected to the side of the lower bottom layer facing away from the upper bottom layer.

[0007] Optionally, the upper layer has an arc-shaped plate structure with the bottom surface protruding downwards from the center, and the lower layer has an arc-shaped plate structure with the top surface concave inwards from the center, with the bottom protruding surface of the upper layer and the top concave surface of the lower layer matching each other.

[0008] Optionally, the carbon plate layer is fixedly disposed between the protruding surface of the upper bottom layer and the recessed surface of the lower bottom layer. The side of the carbon plate layer facing the upper bottom layer protrudes upward to form a plurality of first positioning strips, and the protruding surface of the upper bottom layer is recessed inward to form a plurality of first positioning grooves. The plurality of first positioning grooves and the plurality of first positioning strips correspond one-to-one, and the first positioning grooves are used for the first positioning strips to be embedded. The carbon plate layer has a plurality of second positioning grooves formed by an inward recess on the side facing the bottom layer and a plurality of first positioning strips. The recessed surface of the bottom layer has a plurality of second positioning strips formed by an upward protrusion. The plurality of second positioning strips are adapted to be fixedly embedded in the plurality of second positioning grooves.

[0009] Optionally, the wear-resistant layer has a sheet-like structure adapted to the bottom shape of the lower substrate, and the bottom edge of the lower substrate and the edge of the wear-resistant layer are aligned and fixed.

[0010] Optionally, the wear-resistant layer has a plurality of reinforcing protrusions protruding outward on the side facing the lower bottom layer, and the lower bottom layer has a plurality of reinforcing grooves recessed inward on the side facing the wear-resistant layer. The plurality of reinforcing protrusions and the plurality of reinforcing grooves correspond one-to-one and are fitted and fixedly embedded in the reinforcing grooves.

[0011] Optionally, the wear-resistant layer has a plurality of anti-slip grooves formed by indenting the side away from the bottom layer and facing the plurality of reinforcing protrusions. The plurality of anti-slip grooves are all hollow structures with open bottoms, and the cavity wall of the reinforcing protrusions and the groove wall of the corresponding anti-slip grooves are the same side wall.

[0012] Optionally, a hollow opening is provided through the middle of the bottom layer, and a reinforcing rib is fixedly connected between the left and right side walls of the hollow opening.

[0013] This application also proposes a lightweight running shoe, including an upper and the aforementioned sole structure, wherein the upper is fixedly mounted on the sole structure.

[0014] Compared with the prior art, this utility model provides a lightweight multi-layer sole structure and a lightweight running shoe, which has the following beneficial effects: 1. This utility model uses a multi-layer design for the sole, with a thick bottom layer made of foamed nylon sheet as the main body of the sole, which gives the sole good elasticity and light weight, meeting the requirements of lightweight design. Combined with a sheet-like wear-resistant layer made of polyurethane, the bottom layer will not be worn, improving grip and extending service life, improving user comfort and experience, and is suitable for running sports such as marathons. 2. In this utility model, the wear-resistant layer and the bottom layer are connected by a number of reinforcing protrusions and reinforcing grooves. Without affecting the anti-slip function of the bottom of the wear-resistant layer, it can also prevent stones on the ground from contacting the bottom layer. This not only makes the connection more secure, but also prevents the bottom layer from being scratched, and further extends the service life. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a top view of the upper and lower layers of this utility model; Figure 3This is a top view of the carbon plate layer of this utility model; Figure 4 This is a bottom view of the carbon plate layer of this utility model; Figure 5 This is a top view of the bottom layer of this utility model; Figure 6 This is a bottom view of the lower layer of this utility model; Figure 7 This is a schematic diagram of the wear-resistant layer structure of this utility model; Figure 8 This is a top view of the wear-resistant layer of this utility model.

[0016] In the diagram: 1. Top layer; 101. First positioning groove; 2. Carbon fiber plate layer; 201. First positioning strip; 202. Second positioning groove; 3. Bottom layer; 301. Second positioning strip; 302. Reinforcing groove; 303. Hollow opening; 304. Reinforcing rib; 4. Wear-resistant layer; 401. Reinforcing protrusion; 402. Anti-slip groove. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Example 1: Please refer to Figure 1 - Figure 8 A lightweight multi-layer shoe sole structure includes an upper bottom layer 1, a carbon plate layer 2, a lower bottom layer 3, and an abrasion-resistant layer 4 arranged sequentially from top to bottom. The upper bottom layer 1 and the lower bottom layer 3 are fixedly connected, and the opposing surfaces of the upper bottom layer 1 and the lower bottom layer 3 together enclose a cavity. The carbon plate layer 2 is adapted to be housed in the cavity and fixedly connected to the inner wall of the cavity. The abrasion-resistant layer 4 is fixedly connected to the side of the lower bottom layer 3 facing away from the upper bottom layer 1.

[0019] The upper bottom layer 1 and the lower bottom layer 3 are fixedly connected together by hot melt adhesive, etc. The carbon plate layer 2 is placed between the upper bottom layer 1 and the lower bottom layer 3, and is also connected to the upper bottom layer 1 and the lower bottom layer 3 by hot melt adhesive, etc. The lower bottom layer 3 and the wear-resistant layer 4 are also fixedly connected by adhesive bonding.

[0020] Furthermore, the upper layer 1 has an arc-shaped plate structure with the bottom center protruding downwards, and the lower layer 3 has an arc-shaped plate with the top center concave inwards. The bottom protruding surface of the upper layer 1 and the top concave surface of the lower layer 3 are matched so that the bottom of the upper layer 1 can fit into the top of the lower layer 3, thereby increasing the contact area between the upper layer 1 and the lower layer 3 and improving the firmness of the connection.

[0021] On the other hand, the top surface of the upper layer 1 has a curved structure to match the shape of the user's foot, so as to fit the user's foot tightly and improve the user's comfort.

[0022] Secondly, the thickness of both the upper layer 1 and the lower layer 3 is greater than that of the carbon plate layer 2 and the abrasion layer 4. The sole, composed of the upper layer 1, carbon plate layer 2, lower layer 3, and abrasion layer 4, has a 5mm heel-to-toe slope difference, a 29mm thickness at the front, and a 34mm thickness at the rear. This thicker sole helps to insulate the user's foot from the ground, making running more comfortable. Furthermore, the lower layer 3 is made of foamed nylon sheet, weighing only about 49g, meeting the lightweight requirement while maintaining good elasticity. The carbon plate layer 2 is made of carbon fiber with a tensile strength of up to 6370MPa, embedded between the upper layer 1 and the lower layer 3, enhancing the overall toughness of the sole. The abrasion layer 4 is a 1mm thick cast polyurethane elastomer, offering advantages such as lightweight, slip resistance, and abrasion resistance, preventing wear on the lower layer 3 and extending its service life.

[0023] It should be noted that a hollow opening 303 is provided through the middle of the bottom layer 3 to further reduce the weight of the bottom layer 3. Reinforcing ribs 304 are fixedly connected between the left and right side walls of the hollow opening 303 to increase the overall strength of the bottom layer 3 and prevent compression deformation towards the middle due to the hollow opening 303.

[0024] Furthermore, the carbon plate layer 2 is fixedly disposed between the protruding surface of the upper bottom layer 1 and the recessed surface of the lower bottom layer 3. The side of the carbon plate layer 2 facing the upper bottom layer 1 protrudes upward to form several first positioning strips 201, and the protruding surface of the upper bottom layer 1 is recessed inward to form several first positioning grooves 101. Each of the first positioning grooves 101 corresponds to one of the first positioning strips 201, and the first positioning grooves 101 are used for embedding the first positioning strips 201. The first positioning strips 201 are distributed along the length of the carbon plate layer 2, and the first positioning grooves 101 are distributed along the length of the upper bottom layer 1. The shapes of the first positioning strips 201 and the first positioning grooves 101 match, enabling rapid positioning of the carbon plate layer 2 during connection between the upper bottom layer 1 and the carbon plate layer 2. Simultaneously, after the first positioning strips 201 are embedded in the first positioning grooves 101, the carbon plate layer 2 is less prone to movement, making the connection more stable.

[0025] Furthermore, on the side of the carbon plate layer 2 facing the lower bottom layer 3, several second positioning grooves 202 are formed by inward indentation at several first positioning strips 201. On the concave side of the lower bottom layer 3, several second positioning strips 301 are formed by upward protrusion. The several second positioning strips 301 are adapted to be fixedly embedded in the several second positioning grooves 202. The second positioning strips 301 are distributed along the length direction of the lower bottom layer 3, and the shapes of the second positioning grooves 202 and the second positioning strips 301 match, which can also enable quick positioning when connecting the carbon plate layer 2 and the lower bottom layer 3, and make the connection more firm and stable.

[0026] In this embodiment, the wear-resistant layer 4 is a sheet-like structure adapted to the bottom shape of the lower layer 3, and the bottom edge of the lower layer 3 and the edge of the wear-resistant layer 4 are aligned and fixed. This allows the wear-resistant layer 4 to completely cover the bottom of the lower layer 3, preventing the lower layer 3 from directly contacting the ground and causing severe wear, thereby extending the service life of the sole.

[0027] It should be noted that the wear-resistant layer 4 has several reinforcing protrusions 401 protruding outwards on the side facing the lower layer 3, and several reinforcing grooves 302 recessed inwards on the side facing the wear-resistant layer 4. The reinforcing protrusions 401 and the reinforcing grooves 302 correspond one-to-one and are fitted and fixedly embedded in the reinforcing grooves 302. The shapes of the reinforcing protrusions 401 are different, while the shapes of the reinforcing protrusions 401 and the corresponding reinforcing grooves 302 are the same, so that all the reinforcing protrusions 401 can be embedded in the corresponding reinforcing grooves 302, thereby making the connection between the lower layer 3 and the wear-resistant layer 4 more secure.

[0028] It is worth mentioning that the side of the wear-resistant layer 4 away from the bottom layer 3 is recessed inward at several reinforcing protrusions 401 to form several anti-slip grooves 402, so as to make the surface of the wear-resistant layer 4 more slip-resistant. The anti-slip grooves 402 are all hollow structures with open bottoms. The cavity wall of the reinforcing protrusion 401 and the groove wall of the corresponding anti-slip groove 402 are the same side wall. That is, the reinforcing protrusion 401 is formed by stamping from the bottom surface of the wear-resistant layer 4 to the top surface. This prevents the anti-slip grooves 402 from directly penetrating the wear-resistant layer 4, so that objects such as stones on the ground can come into contact with the bottom layer 3 and scratch the bottom layer 3, thus further extending the service life of the sole.

[0029] Example 2: This example proposes a lightweight running shoe, including an upper and a sole structure as described in Example 1. The upper is fixedly mounted on the sole structure, and the sole structure of Example 1 is used as the sole of the running shoe to meet the requirements of lightweight design, thereby reducing the overall weight of the running shoe and improving the user experience.

[0030] Among them, the size 41 running shoes weigh only about 136g, which is lightweight yet durable, and suitable for running on outdoor asphalt and concrete roads.

[0031] The working principle and usage process of this utility model: The multi-layer structure enables the shoe sole to have advantages such as elasticity, lightweight, toughness, wear resistance, and slip resistance. The bottom layer 3, made of foamed nylon sheet, serves as the main body of the shoe sole, giving it good elasticity and meeting the requirements of lightweight. The carbon fiber plate layer 2 provides the shoe sole with toughness, and the wear-resistant layer 4, made of polyurethane, gives the shoe sole wear resistance and slip resistance.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A lightweight multi-layer shoe sole structure, characterized in that: The material includes an upper bottom layer (1), a carbon plate layer (2), a lower bottom layer (3), and a wear-resistant layer (4) arranged sequentially from top to bottom. The upper bottom layer (1) and the lower bottom layer (3) are fixedly connected, and the opposing surfaces of the upper bottom layer (1) and the lower bottom layer (3) together enclose a cavity. The carbon plate layer (2) is adapted to be housed in the cavity and fixedly connected to the inner wall of the cavity. The wear-resistant layer (4) is fixedly connected to the side of the lower bottom layer (3) facing away from the upper bottom layer (1). The carbon plate layer (2) is fixedly disposed between the protruding surface of the upper bottom layer (1) and the recessed surface of the lower bottom layer (3). The side of the carbon plate layer (2) facing the upper bottom layer (1) protrudes upward to form a plurality of first positioning strips (201). The protruding surface of the upper bottom layer (1) is recessed inward to form a plurality of first positioning grooves (101). The plurality of first positioning grooves (101) and the plurality of first positioning strips (201) correspond one to one. The first positioning grooves (101) are used for the first positioning strips (201) to be embedded. The carbon plate layer (2) facing the lower bottom layer (3) has a plurality of second positioning grooves (202) formed by indentation inward at the position of a plurality of first positioning strips (201). The concave surface of the lower bottom layer (3) has a plurality of second positioning strips (301) formed by protruding upward. The plurality of second positioning strips (301) are adapted to be fixedly embedded in the plurality of second positioning grooves (202). The wear-resistant layer (4) has a plurality of reinforcing protrusions (401) protruding outwards on the side facing the lower bottom layer (3), and a plurality of reinforcing grooves (302) are formed inwards on the side facing the wear-resistant layer (4). The plurality of reinforcing protrusions (401) and the plurality of reinforcing grooves (302) correspond one to one and are fitted and fixedly embedded in the reinforcing grooves (302). The bottom layer (3) has a through opening (303) in the middle, and the left and right side walls of the through opening (303) are fixedly connected with reinforcing ribs (304). The bottom layer (3) is made of foamed nylon sheet.

2. The lightweight multi-layer sole structure according to claim 1, characterized in that: The upper layer (1) has an arc-shaped plate structure with the bottom center protruding downwards, and the lower layer (3) has an arc-shaped plate state with the top center recessed inwards. The bottom protruding surface of the upper layer (1) and the top recessed surface of the lower layer (3) are matched.

3. The lightweight multi-layer sole structure according to claim 2, characterized in that: The wear-resistant layer (4) has a sheet-like structure that is adapted to the bottom shape of the bottom layer (3), and the bottom edge of the bottom layer (3) and the edge of the wear-resistant layer (4) are aligned and fixed.

4. The lightweight multi-layer sole structure according to claim 3, characterized in that: The wear-resistant layer (4) has a plurality of anti-slip grooves (402) formed by indenting inward at a plurality of reinforcing protrusions (401) on the side away from the bottom layer (3). The plurality of anti-slip grooves (402) are all hollow structures with open bottoms. The cavity wall of the reinforcing protrusion (401) and the groove wall of the corresponding anti-slip groove (402) are the same side wall.

5. A lightweight running shoe, comprising a shoe upper, characterized in that: It also includes the sole structure according to any one of claims 1-4, wherein the shoe body is fixedly disposed on the sole structure.

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