CN217771611U - A sole that prevents excessive shifting of the center of gravity of the foot - Google Patents

Abstract

The utility model discloses a shoe sole for preventing the center of gravity of the sole from being excessively shifted, comprising a support pad, the support pad includes a rigid pad body and an elastic pad body, and the rigid pad body is used to support most of the forefoot metatarsal bone, the middle foot to the rear heel bone On the sole of the foot, the elastic pad is used to support the narrow and long area opposite to the first phalanx and the second phalanx. The elastic pad extends from the front edge of the rigid pad toward the first phalanx and the second phalanx to protrude in a flat sword shape. There are multiple jagged notches in the shaped protrusion. The utility model supports most of the soles of the feet including the forefoot metatarsal bone, middle foot to the rear heel bone with a rigid pad body with good covering properties, and uses an elastic pad body to support the narrow and long area relative to the first phalanx and the second phalanx. The support effect can effectively prevent the excessive shift of the center of gravity of the sole, so as to reduce the abnormal moment generated by the ground reaction force on the ankle joint and knee joint, and improve the effort-saving propulsion effect of the first phalanx and the second phalanx.

Description

A sole that prevents excessive shifting of the center of gravity of the foot

technical field

The utility model relates to a shoe sole, in particular to a shoe sole that prevents the center of gravity of the sole from being excessively shifted.

Background technique

Studies have pointed out that the moving track of the center of plantar pressure (COP) is about the lateral side of the midline of the plantar, and the offset track of the plantar pressure center is likely to cause the ground reaction force to produce abnormal moments on the ankle and knee joints, resulting in foot The bottom center of gravity (COG) is excessively offset.

According to the foot pressure curve, people usually use the point between the first toe and the second toe as the propulsion point when walking. Therefore, the use of rebound materials on the bone parts opposite the first toe and the second toe conforms to the biomechanics of gait and effectively achieves Effort-saving propulsion effect. That is to say, when a person walks, the heel will first receive the ground pressure, and then move from the fifth metatarsal head to the first metatarsal head on the outside of the foot, and then step forward to start walking. Based on the above gait biomechanics, it is necessary to strengthen the support capacity at the appropriate position and guide the movement trajectory of the walking foot pressure center.

Utility model content

Purpose of the utility model: To solve the problem of the excessive deviation of the center of gravity of the sole of the foot caused by the trajectory of the offset center of the sole pressure, the utility model discloses a shoe sole that prevents the excessive deviation of the center of gravity of the sole of the foot, wherein: the support pad of the sole conforms to the pressure of the foot From the biodynamic point of view of the central trajectory, the rigid pad with good coverage supports most of the soles of the feet including the forefoot metatarsal bone, the midfoot to the heel bone of the rear foot; the elastic pad supports the long and narrow area relative to the first phalanx and the second phalanx , the support effect constructed by the two can effectively prevent the excessive deviation of the center of gravity (COG) of the foot, so as to reduce the abnormal moment of the ground reaction force on the ankle joint and knee joint, and improve the effort of the first phalanx and the second phalanx advance effect.

In order to achieve the above object, the technical scheme of the utility model is as follows:

A shoe sole that prevents the center of gravity from shifting excessively. The shoe sole includes a support pad that includes a rigid pad and an elastic pad. For part of the sole of the foot, the elastic pad is used to support the narrow and long area opposite to the first phalanx and the second phalanx. There are many jagged notches in the flat sword-shaped protrusion.

In a further improvement of the present utility model, the sole also includes a midsole, the front of the midsole is provided with a footbed, and the footbed is provided with a groove adapted to the shape of the support pad, so that the support The pad can be snugly positioned within the footbed on the front of the midsole.

In a further improvement solution of the present utility model, the sole further includes an outsole, and the outsole is attached to the forefoot area and the heel area of the bottom surface of the midsole.

In a further improvement of the utility model, the outsole is integrally formed of rubber.

In a further improvement of the utility model, the midsole is formed integrally with ethylene-vinyl acetate copolymer.

In a further improvement of the utility model, the support pad is integrally formed of nylon.

The rigid pad body of the utility model wraps the inner and outer arches and heels, that is, forms a valgus curvature at the position of the inner and outer arches, and extends the curvature backward to the heel position to form a cup shape. The supporting effect can effectively prevent the center of gravity of the foot from exaggerating, and reduce the ground reaction force to produce abnormal moments on the ankle joint and knee joint;

In addition, the setting of the sawtooth-shaped notch enhances the labor-saving propulsion effect of the first and second phalanges with flexible elasticity.

Description of drawings

Fig. 1 is the appearance perspective view of the present utility model;

Fig. 2 is an exploded perspective view of the utility model in a top view state;

Fig. 3 is an exploded perspective view of the utility model in a state of looking up.

in:

1- outsole 2- midsole 21-bottom 22 - Footbed 221-groove 3- Support pad 31-Rigid Pad 311-inner arch 312-outer arch 313-heel 32-elastic cushion body 321-Serrated notch

Detailed ways:

Below the specific embodiment of the utility model is described in detail.

As shown in Figures 1 to 3, the sole that prevents excessive shifting of the center of gravity of the sole is composed of an outsole 1, a midsole 2 and a support pad 3, wherein:

The outsole 1 is attached to the forefoot area and the heel area of the bottom surface 21 of the midsole 2. The front of the midsole 2 is provided with a footbed 22, and the footbed 22 is reserved with a groove 221 corresponding to the shape of the support pad 3. Make the support pad 3 fit the footbed 22 positioned on the front of the midsole 2;

The support pad 3 includes a rigid pad body 31 and an elastic pad body 32. The rigid pad body 31 supports most of the soles of the feet, that is, the rigid pad body 31 supports the forefoot metatarsal bone, the middle foot to the rear heel bone, and The elastic pad 32 supports the long and narrow area opposite to the first phalanx and the second phalanx;

The rigid pad 31 wraps the blocks of the inner arch 311, the outer arch 312 and the heel 313, that is, the inner arch 311 and the outer arch 312 form a valgus curvature, and the valgus curve The degree extends backward to the heel position and forms a cup shape. The constructed structure enables the support effect of the sole to effectively prevent the excessive deviation of the center of gravity of the sole and reduce the abnormal torque generated by the ground reaction force on the ankle joint and knee joint.

In a further improvement of this embodiment, the elastic pad 32 extends from the front edge of the rigid pad 31 toward the first phalanx and the second phalanx to form a flat sword-shaped protrusion, and cut out more in the flat sword-shaped protrusion. A saw-toothed notch 321 enhances the effort-saving propulsion effect of the first phalanx and the second phalanx with flexible elasticity. The reason for this design is that the first phalanx and the second phalanx play a propulsive role in gait biomechanics. If a rigid support material is used, it will be difficult for the phalanx to propel. Therefore, the support material in this part must be elastic.

In a further improvement of this embodiment, the outsole 1 is integrally formed of rubber, especially wear-resistant rubber.

In a further improvement of this embodiment, the midsole 2 is integrally molded from ethylene-vinyl acetate copolymer (EVA), and has elasticity.

In a further improvement of this embodiment, the support pad 3 is integrally formed of nylon.

The technical content and technical features of the present utility model have been disclosed above, but those skilled in the art may still make various replacements and modifications without departing from the spirit of the utility model based on the disclosure of the utility model. Therefore, the protection scope of the utility model should not be limited to the technical solutions disclosed in the embodiments, but should include various alternative and modified technical solutions that do not deviate from the utility model, and are covered by the claims.

Claims (6)

1. Prevent the excessive sole that squints of sole focus, the sole includes the supporting pad, the supporting pad includes that the rigidity fills up the body and the elasticity pad body, and this rigidity pad body is used for supporting most sole including forefoot metatarsal, well foot to back heel bone, and the elasticity pad body is used for supporting the long and narrow region of relative first phalanx and second phalanx, its characterized in that: the elastic cushion body extends from the front edge of the rigid cushion body to the first phalanx and the second phalanx to form a flat sword-shaped protrusion, and a plurality of saw-tooth-shaped notches are arranged in the flat sword-shaped protrusion.

2. The sole according to claim 1, wherein the sole further comprises a midsole, the front surface of the midsole is provided with a footbed, and the footbed is provided with a groove adapted to the shape of the support pad, so that the support pad can be positioned in the footbed on the front surface of the midsole.

3. The sole for preventing excessive plantar gravity center shifting according to claim 2, further comprising an outsole fitted to a forefoot region and a heel region of a bottom surface of the midsole.

4. The sole for preventing excessive center of gravity shifting according to claim 3, wherein said outsole is integrally formed of rubber.

5. The sole for preventing excessive center of gravity shift according to claim 2, wherein said midsole is integrally formed of an ethylene-vinyl acetate copolymer.

6. The sole for preventing excessive center of gravity under the foot according to claim 1, wherein the support pad is integrally formed of nylon.

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