A shoe body structure with balanced stress

Abstract

This utility model discloses a shoe body structure with balanced force distribution, comprising a shoe body, a pad, and an air cushion block. The pad and shoe body are detachable and assembleable, with the air cushion block positioned between them. Both the shoe body and the pad have arc grooves on their end faces, with the arc groove of the pad protruding from its bottom end face. The arc grooves of the shoe body and the pad connect to form a single unit. The arc groove includes a first bend, a second bend, and a third bend. The first and third bends are located at opposite ends of the arc groove, and the second bend is located between the first and third bends. The curvature of the second bend is greater than that of the first bend, and the curvatures of the first and third bends are identical. This structure is simple, compact, and rationally designed; therefore, it is a product with superior technical and economic performance.

Description

[Technical Field] This utility model mainly relates to a shoe structure with balanced force distribution. [Background Technology] Existing shoe designs often employ a one-piece or simple layered structure, making it difficult to dynamically guide the foot to maintain a natural gait during walking. Furthermore, most cushioning components are fixedly distributed, failing to provide differentiated cushioning for different areas of the foot, which can easily lead to localized fatigue and uneven stress distribution over long periods of walking. Therefore, we propose a shoe structure that can both guide gait and provide adaptive cushioning, achieving a better balance between comfort, health support, and wearability. [Utility Model Content] To solve at least one of the above problems, this utility model proposes a new structural solution. The shoe body structure with balanced force distribution adopts the following technical solution: A shoe body structure with balanced force distribution includes a shoe body, a pad, and an air cushion block. The pad and the shoe body are detachable assembly structures, and the air cushion block is located between the shoe body and the pad. Both the shoe body and the pad have arc grooves on their end faces. The arc groove of the pad protrudes from its bottom end face. The arc grooves of the shoe body and the pad are connected to join the shoe body and the pad together. The arc groove includes a first bend, a second bend, and a third bend. The first bend and the third bend are located at the two ends of the arc groove, respectively. The second bend is located between the first bend and the third bend. The curvature of the second bend is greater than that of the first bend, and the curvatures of the first bend and the third bend are the same.

[0004] Preferably, the shoe body includes a left shoe body and a right shoe body, and the arc grooves of the left shoe body and the right shoe body are symmetrical; the padding body includes a left padding body and a right padding body, and the arc grooves of the left padding body and the right padding body are symmetrical.

[0005] Preferably, the depth of the groove on the shoe body is greater than the depth of the protrusion at the bottom of the groove on the pad.

[0006] Preferably, the bottom end face of the cushion body is provided with a first recess, and the air cushion block is adhered to the first recess.

[0007] Preferably, the top surface of the shoe body is provided with a second recess, and the air cushion block of the first recess is connected to the second recess. The position of the air cushion block is restricted by the cooperation of the first recess and the second recess.

[0008] The beneficial effects of this utility model compared with the prior art are: This invention achieves dynamic balance and effective shock absorption of foot pressure through a combination of symmetrically arranged arc grooves and air cushioning. Specifically, the symmetrical arc grooves on the shoe body and insole, especially the second curve with a greater curvature at the midfoot arch, conform to the arch shape and guide the feet along the natural gait line, promoting body alignment and balanced distribution of force on both sides during walking, thus improving posture and reducing pressure on joints and the spine. Simultaneously, the air cushion block between the shoe body and insole, fixed by recesses at both ends, effectively absorbs and disperses impact energy when the foot strikes, enhancing local cushioning performance and reducing foot and joint strain. Furthermore, the shoe body and insole are detachable, facilitating air cushion adaptation and replacement, and improving the shoe's functional adjustability and durability, thus comprehensively considering gait correction, dynamic cushioning, and structural flexibility. It boasts advantages such as simple structure, compact fit, and rational design; therefore, it is a product with superior technical and economic performance. [Attached Image Description] Figure 1 A schematic diagram of a shoe body structure with balanced force distribution in a preferred embodiment of this utility model; Figure 2 A schematic cross-sectional view of the pad body in a preferred embodiment of this utility model; Figure 3 A schematic diagram of the internal structure of the shoe in a preferred embodiment of this utility model; Figure 4 This is a schematic diagram of the bottom surface of the pad in a preferred embodiment of the present invention.

Detailed Implementation Methods

[0011] In this utility model, unless otherwise explicitly specified and limited, the terms "assembly," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can also refer to a mechanical connection; they can refer to a direct connection or a connection through an intermediate medium; or they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0012] The following description, in conjunction with the accompanying drawings, further illustrates specific embodiments of the present invention, making the technical solution and beneficial effects of the present invention clearer and more explicit. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0013] The preferred embodiment provided by this utility model is as follows: Figures 1-4 As shown, a shoe body structure with balanced force distribution includes a shoe body 1, a pad 2, and an air cushion block 3. The pad 2 and the shoe body 1 are detachable assembly structures, and the air cushion block 3 is located between the shoe body 1 and the pad 2. Both the shoe body 1 and the pad 2 have an arc groove 4 on their end faces. The arc groove of the shoe body is located on the sole of the shoe, and the arc groove 4 of the pad 2 protrudes from its bottom end face. The arc grooves 4 of the shoe body 1 and the pad 2 are connected to connect the shoe body 1 and the pad 2 together. The depth of the arc groove 4 of the shoe body 1 is greater than the bottom protrusion depth of the arc groove 4 of the pad 2, and the arc groove 4 of the pad 2 and the arc groove of the shoe body 1 are connected.

[0014] The arc groove 4 includes a first bend 41, a second bend 42, and a third bend 43. The first bend 41 and the third bend 43 are located at opposite ends of the arc groove 4, while the second bend 42 is located between the first bend 41 and the third bend 43. The curvature of the second bend 42 is greater than that of the first bend 41, while the curvatures of the first bend 41 and the third bend 43 are the same. The second bend 42 of the arc groove 4 in the shoe body 1 and the pad 2 is located in the middle of their respective components, i.e., at the arch position. The two ends of the arc groove 4 extend to the ends of their respective components. The arc groove 4 is a three-dimensional guide rail extending from the heel to the forefoot. The second bend 42, located at the center of the arch, has the greatest curvature, which corresponds precisely to the pronation (inward rolling) movement that the arch needs to undergo during the gait cycle from heel strike to full foot weight-bearing. The arc groove 4 provides the strongest guiding force at this point, ensuring smooth and controllable overpronation of the arch and avoiding excessive overturning. The first bend 41 (heel) and the third bend 43 (forefoot), with consistent and smaller curvatures, correspond to the initial stable contact of the heel and the flexible propulsion required during the forefoot push-off phase, respectively. When the foot is placed inside the shoe, this pre-designed three-dimensional arc groove 4 forms a biomechanically compatible "track." During walking, the plantar fascia and foot bones naturally roll forward along this path of least resistance, passively guiding the entire gait cycle—from heel strike, midfoot support to forefoot propulsion—along a more efficient and physiologically natural trajectory. This effectively reduces abnormal compensatory movements such as pronation and supination, achieving gait correction and optimization.

[0015] The shoe body 1 includes a left shoe body 11 and a right shoe body 12, and the arc grooves 4 of the left shoe body 11 and the right shoe body 12 are symmetrical; the pad body 2 includes a left pad body 22 and a right pad body 23, and the arc grooves of the left pad body and the right pad body are symmetrical.

[0016] The bottom surface of the pad 2 has a first recess 21, to which the air cushion block 3 is adhered. The top surface of the shoe body 1 has a second recess 13, to which the air cushion block 3 of the first recess 21 is connected. The first recess 21 and the second recess 13 cooperate to restrict the position of the air cushion block 3. Two arc grooves 4 are also used to connect the pad 2 and the shoe body 1. Users can choose to adhere the air cushion block 3 at different positions according to their needs.

[0017] This patent achieves dynamic balance and effective shock absorption of foot pressure through a combination of symmetrically arranged arc grooves and air cushioning. Specifically, the symmetrical arc grooves 4 on the shoe body 1 and the pad 2, especially the second bend 42 with a greater curvature at the midfoot arch, conform to the shape of the arch and guide the feet to move along the natural gait line, promoting body posture alignment and balanced distribution of force on both sides during walking, which helps improve posture and reduce joint and spinal pressure. Simultaneously, the air cushion block 3, located between the shoe body 1 and the pad 2, is fixed by recesses at both ends, effectively absorbing and dispersing impact energy when the foot lands, enhancing local cushioning performance and reducing foot and joint strain. Furthermore, the shoe body 1 and the pad 2 are detachable, facilitating air cushion adaptation and replacement, and improving the shoe's functional adjustability and durability, thus comprehensively considering gait correction, dynamic cushioning, and structural flexibility.

[0018] In the description of this specification, references to terms such as "an embodiment," "preferred," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this utility model. Illustrative expressions of the above terms in this specification do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0019] Based on the above description of the structure and principle, those skilled in the art should understand that this utility model is not limited to the specific embodiments described above. Improvements and substitutions based on this utility model using techniques known in the art all fall within the protection scope of this utility model and should be defined by the claims.

Claims

1. A shoe body structure with balanced force distribution, characterized in that: It includes a shoe body, a pad, and an air cushion block. The pad and shoe body are detachable and can be assembled separately. The air cushion block is located between the shoe body and the pad. Both the shoe body and the pad have arc grooves on their end faces. The arc groove of the pad protrudes from its bottom end face. The arc grooves of the shoe body and the pad are connected to join the shoe body and the pad together. The arc groove includes a first bend, a second bend, and a third bend. The first bend and the third bend are located at the two ends of the arc groove, respectively. The second bend is located between the first bend and the third bend. The curvature of the second bend is greater than that of the first bend, and the curvatures of the first bend and the third bend are the same.

2. The shoe body structure with balanced force distribution according to claim 1, characterized in that: The shoe body includes a left shoe body and a right shoe body, and the arc grooves of the left shoe body and the right shoe body are symmetrical; the padding body includes a left padding body and a right padding body, and the arc grooves of the left padding body and the right padding body are symmetrical.

3. The shoe body structure with balanced force distribution according to claim 1, characterized in that: The depth of the groove on the shoe body is greater than the depth of the protrusion at the bottom of the groove on the pad.

4. A shoe body structure with balanced force distribution according to claim 1, characterized in that: The bottom surface of the cushion body has a first recess, and the air cushion block is adhered to the first recess.

5. A shoe body structure with balanced force distribution according to claim 4, characterized in that: The top surface of the shoe body is provided with a second recess, and the air cushion block of the first recess is connected to the second recess. The position of the air cushion block is restricted by the cooperation of the first and second recesses.

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