CN102309089B - Shoe sole with flexibility and torsional stability - Google Patents

Abstract

The invention discloses a shoe sole with flexibility and torsional stability. The show sole comprises an inner sole, a middle sole and an undersole which are arranged in sequence from top to bottom, and is characterized in that: the middle sole is made of an elastic material; the undersole consists of two sections of separate structure, i.e., a front sole and a back sole; the front sole has a hollow frame structure; the middle sole is provided with a corresponding bump at the hollow position of the front sole; and the bump extends out of the hollow position, is matched with the outer surface of the front sole, and is tightly bonded with the periphery of the hollow structure. The middle sole made of the elastic material is limited in the form of frame on a foot sole by the undersole, so that the shoe sole has high elasticity, the bending deformation of the shoe sole is controlled in a certain range, and the torsional stability is enhanced; and meanwhile, the middle sole is made of the elastic material, and the middle sole and the undersole are combined into a whole, so that the shoe sole is firm and has high deformability on a foot sole part. The shoe sole has the advantages of capability of avoiding cavities, more stable integral structure, more uniform pressure bearing, flexible and comfort sole feel and freeness from foreign body sensation.

Description

Sole with flexibility and torsional stability

technical field

The invention relates to a shoe sole, in particular to a shoe sole with flexibility and torsional stability.

Background technique

The flexibility and torsional stability of the sole cannot be ignored in the design of the sole. The existing sole design is named: flexing sole, the Chinese invention patent with the patent number 01804503.0 and the multiple US patents mentioned in the prior art part of the patent. The patent discloses an outsole (outsole) with an internal cavity, the internal cavity has a rib-shaped structure, and the rib-shaped structure is connected to the side of the outsole or integrally formed with the outsole. Attempts have been made to increase the torsional stability of the outsole through the confinement of the rib structure. Whether the rib-shaped structure is connected to the outsole by bonding or integrally formed with the outsole of the shoe, the cavity of the rib-shaped skeleton is formed on the bottom of the shoe. The ribs that are frequently stressed have a limited service life, and the stamping force is often not vertical. On the upper surface of the rib, due to the long-term abnormal deformation, extrusion and pulling, the rib-shaped skeleton is easily damaged; moreover, since the rib-shaped skeleton is arranged in scattered rows on the sole, its contact with the inner sole of the shoe must be sensitive to A foreign body sensation occurs on the soles of the feet, making the soles of the feet feel uncomfortable.

Contents of the invention

Aiming at the defects or deficiencies in the prior art, the invention provides a shoe sole with flexibility and torsional stability. Adoption of the device or method is beneficial to solve the problems of short service life and uncomfortable wearing of the current deflected soles. The technical solution is:

A shoe sole with flexibility and torsional stability, including an insole, a midsole and a large bottom arranged sequentially from top to bottom, the midsole is made of elastic material; the large bottom is composed of two separate structures: the front bottom and the bottom The rear bottom is composed of two parts, the rear bottom is located at the heel, and the front bottom is located at the sole of the foot. It is a hollow frame structure. The inner surface of the front bottom is integrated with the lower surface of the middle bottom. Corresponding bumps are provided on the hollowed out portion, and the bumps pass through the hollowed out portion, coincide with the outer surface of the front bottom, and are closely bonded to the periphery of the hollowed out structure.

The hollow frame structure of the front bottom is composed of vertically arranged side by side, laterally extending straight strip-shaped branches and two sides connecting the two ends of the branches, and the adjacent branches and the opposite sides are surrounded by Form the hollow structure.

The adjacent branch ribs are inwardly recessed to form first grooves extending transversely and arranged longitudinally, and the outward facing surface of the protrusion protruding from the hollow structure arranged in the first groove is correspondingly inner. concave structure.

The hollow structures in each of the first grooves are elongated, and the length of the hollow structures in the middle along the longitudinal direction is greater than the length of the hollow structures at both ends.

Protrusions arranged in a uniform staggered manner are arranged on the branch ribs, and the protrusions are triangular in shape.

The front bottom extends forward and upward with a certain curvature, wraps the midsole at the toe and protrudes from the upper surface of the inner bottom, forming a round and high tongue to wrap the toe; the rear bottom is approximately U-shaped, The edge protrudes, and a third groove is formed inside. The rear bottom extends backward and upward with a curvature greater than that of the front bottom.

The sole with flexibility and torsional stability also includes a frame that accommodates the midsole inside the side of the midsole, the frame is adapted to the shape of the side of the midsole, and the frame is The side end and the lower side end are combined with the edges of the inner bottom and the outsole respectively, the frame is made of elastic material, and there is a gap between the frame and the midsole.

The frame is made of transparent material, the elasticity of the midsole is smaller than that of the frame, and the midsole is made of TPU plastic material.

The frame is bonded to the edge of the inner bottom and the outsole.

The lower end of the frame extends inwardly to form a folded edge, the bottom edge of the midsole is bonded to the inner surface of the folded edge, and the upper edge of the outsole is bonded to the lower surface of the folded edge.

The midsole is sequentially divided into the toe part, the sole part, the sole part, the heel part and the heel tail part from the front to the back. The middle part of the sole part and the middle part of the heel part are relatively thick, and the middle thickness of the heel part is greater than the middle thickness of the sole part. The toe part and the heel tail part shrink to zero thickness at their ends respectively, and the thickness of the said arch part shrinks smoothly from the center of the sole part and the middle of the heel part to the center of the arch part, forming the thinnest part at the center of the arch part. The longitudinal sides of the toe part, the sole part, the center of the foot part, the heel part and the heel tail part sequentially form a structure similar to the longitudinal section of a prolate gourd, and the upper surface of the sole part is relatively flat; the lower part of the inner bottom and the middle bottom The upper surface is matched, the outsole is matched with the lower surface of the midsole, and the length of the insole and the outsole at the tip of the toe and the end of the heel are slightly longer than that of the midsole, and the length of the insole at both ends of the midsole is longer than that of the midsole. The bottom and the outsole are connected and bonded together; the frame adapted to the side shape of the midsole covers the midsole on the left and right sides of the midsole.

The arch of the inner bottom is provided with a cavity that runs through the inner bottom and is integrally formed with the inner bottom. The upper surface of the midsole matches the upper surface of the midsole, and the upper surface of the midsole is a relatively straight surface. The cavity of the inner bottom along the longitudinal section of the shoe is an olive-shaped structure with a high middle and low ends, and the curvature of the upper side is smaller than that of the lower side. The inner and outer sides of the cavity gradually open with a smooth curved surface, showing a half-moon shape; the material of the inner bottom is hard material; the hard material is carbon fiber plate, steel or hard TPU material.

The sole part and the heel part of the inner bottom are provided with a hollow structure; the upper part of the middle bottom matches the hollow of the inner bottom, and the upper surface of the inner bottom naturally forms a curved surface matching the shape of the sole surface.

The upper and lower surfaces of the heel portion of the midsole are respectively vertically arranged and correspondingly provided with at least two ventilating channels transversely through each other. A transverse rib is formed between two ventilating channels on the upper surface of the heel portion of the midsole. The hollow part of the heel portion of the inner bottom slightly protrudes from the upper surface of the inner bottom.

A second groove is provided at the part where the arch on the lower surface of the midsole is connected to the hem.

The side edge of the upper surface of the front bottom is closely bonded to the corresponding part of the hem, the side edge of the upper surface of the rear bottom is closely bonded to the corresponding part of the hem, and the front bottom and the back bottom are made of hard elastic Made of plastic, it is less elastic than the midsole.

Technical effect:

The shoe sole with flexibility and torsional stability of the present invention comprises an inner bottom, a midsole and a large bottom arranged sequentially from top to bottom, the midsole is made of elastic material, and the large bottom consists of two separate structures: the front bottom and the bottom The back bottom is composed of two parts, the front bottom is a hollow frame structure, and the midsole is provided with corresponding bumps on the hollow part of the front bottom, and the bumps go out of the hollow and coincide with the outer surface of the front bottom. And closely bonded with the periphery of the hollow structure. In this way, the outsole limits the midsole of the elastic material in the form of a frame at the sole of the foot, which not only makes the sole have good elasticity, but also controls the bending deformation of the sole within a certain range, increasing torsional stability, and because the midsole is elastic. The material, the midsole and the outsole are combined into one, which can make the sole strong and have good deformation ability on the sole of the foot. Avoiding cavities makes the overall structure more stable, the pressure is more uniform, and the soles of the feet feel soft and comfortable without foreign body sensation.

The first grooves extending horizontally and arranged longitudinally are formed by indenting inwards between the adjacent ribs, which are designed to cooperate with the hollow structure between the ribs, so as to coordinate the bending deformation of the front bottom.

There are evenly staggered protrusions on the branch ribs, which can increase the ground adhesion, strengthen the strength of the foot, and also have the effect of absorbing impact. The protrusions are arranged evenly and staggered on the branch edges to form a mesh drainage groove, which greatly enhances the anti-skid and waterproof effects.

The front bottom extends forward and upward with a certain curvature, wraps the midsole at the toe and protrudes from the upper surface of the inner bottom, forming a round and high tongue to cover the toe, which can protect the instep and extensor tendons. Function: The back bottom is U-shaped, with protruding edges and a third groove inside. This structure is designed according to the main wear area of the heel of the sole, which can strengthen the wear resistance of the heel of the sole. The rear bottom extends rearward and upward with a certain curvature. This kind of curved surface design is beautiful and generous, which also makes the overall line smoother and the structure more stable. At the same time, it wraps the midsole to protect the midsole and avoid wear.

Since a frame for accommodating the midsole is arranged outside the side of the midsole, there is a gap between the frame and the midsole, and both the midsole and the frame are elastic materials, so that the midsole and the frame form a A structure that can absorb and release energy through its own structure. Specifically, when subjected to downward pressure, the elastic midsole and frame are compressed, and the gap between the two forms a receiving space for the two to deform under pressure. Make the two bear greater pressure and impact, control the bending deformation of the sole within a certain range during exercise, and recover the exercise energy within a certain range, playing a good role in body shaping. And because the midsole is an integrated elastic body, it has a huge energy absorption and release capacity, and because of the integrated elastic structure of the midsole, the feet will not feel special concave and convex parts when applying pressure to it. Therefore, it feels comfortable; in addition, the frame and the elastic body can be conveniently mass-produced and combined, so that the processing cost is greatly reduced. The elastic body such as the midsole and the frame can be made of plastic or other integrated elastic materials, which is much better than that required The cushioning shoes composed of a single spring combination not only reduce the cost, but also greatly improve the durability.

The frame is made of a transparent material, and the shock-absorbing structure of the midsole can be seen visually, which increases the appearance and is also convenient for observing the damage of the midsole during use; the elasticity of the midsole is smaller than that of the frame, and the The midsole is made of TPU plastic material to better support large impacts.

The frame is combined with the inner bottom and the edge of the outsole by bonding, which can simplify the molding equipment and reduce the cost compared with integral molding.

The lower end of the frame extends inwardly to form a folded edge, the bottom edge of the midsole is bonded to the inner surface of the folded edge, the upper edge of the outsole is bonded to the lower surface of the folded edge, and the folded edge It is convenient for the combination of the frame and the midsole and the outsole, and it is more convenient for the special structure design of the outsole.

The longitudinal side of the midsole forms a structure similar to the longitudinal section of a flat long gourd in turn, and the upper surface of the sole is relatively flat. This structure makes the heel and sole of the foot thicker and can be well Under great pressure; the lower part of the insole matches the upper surface of the midsole, and the outsole matches the lower surface of the midsole, and the length of the insole and the outsole at the tip of the toe and the end of the heel are slightly longer than the The midsole, and the inner bottom and the outsole are connected and bonded together at both ends longer than the midsole; the frame matching the side shape of the midsole is wrapped around the left and right sides of the midsole Overlays the midsole. The structure formed in this way can make the insole and the outsole with relatively hard materials protect the midsole well.

The arch of the insole is provided with a cavity that runs through and is integrally formed with the insole. The setting of the cavity makes the lower surface of the insole form a downward convex structure toward the arch of the foot, so as to be consistent with the upper surface of the midsole. surface, and the upper surface of the midsole is a relatively flat surface; these structures are both aesthetically pleasing and material-saving. The inner and outer sides of the cavity gradually open with a smooth curved surface, showing a half-moon shape. This structure is designed according to the comfortable curve of the human foot arch, fully supports the stress-bearing parts, and increases the support and pressure-relieving ability of the foot arch. The cavity of the inner sole along the longitudinal section of the shoe is an olive-shaped structure with a high middle and low ends, and the arc of the upper side is smaller than that of the lower side. This structure can fully support the stress-bearing parts of the arch of the foot, and at the same time can form enough large cavity. The hard material is carbon fiber board, steel or hard TPU material, that is, a variety of one-time molding materials can be used to facilitate the production of shoes with different strengths to meet different needs.

The sole part and the heel part of the inner bottom are provided with a hollow structure, the upper part of the middle bottom matches the hollow of the inner bottom, and the upper surface of the inner bottom naturally forms a curved surface matching the shape of the sole surface. Part of the soft midsole is combined with the inner sole, which can make the sole of the foot feel more comfortable, and at the same time save materials, making the sole lighter. Since the inner sole does not need to be manually bonded to a functional block, it saves the process and also Ensure the stability of the shoe. Therefore, the production efficiency of the inner bottom is improved, and the product cost is reduced. In addition, the elastic material in the midsole can penetrate into the inner sole to form a cushioning and shock absorption area, so that the shoes with hard inner soles are elastic in the area where the force is exerted. It acts as a buffer and protector for vulnerable joints.

The upper and lower surfaces of the heel portion of the midsole are respectively vertically arranged and correspondingly provided with at least two ventilating channels transversely through each other. A transverse rib is formed between two ventilating channels on the upper surface of the heel portion of the midsole. The hollow part of the heel portion of the inner bottom slightly protrudes from the upper surface of the inner bottom, and the protruding transverse rib increases the energy absorption capacity of the heel. During exercise, the ventilation hole is repeatedly squeezed, and the internal air forms a reciprocating airflow to achieve the effect of cushioning and shock absorption. In addition, the left and right sides of the midsole are covered by a transparent frame, which can prevent the edge of the midsole from being exposed and the ventilation holes from being blocked by mud.

The side of the upper surface of the front bottom is closely bonded to the corresponding part of the hem, and the side of the upper surface of the rear bottom is closely bonded to the corresponding part of the hem. This structure not only saves materials, but also facilitates fabrication. Non-slip design.

Description of drawings

Fig. 1 is a schematic view of the side structure of the present invention.

Fig. 2 is a schematic diagram of the bottom surface structure of the present invention.

Fig. 3 is a schematic diagram of the upper surface structure of the present invention.

100-inner bottom, 101-cavity, 200-midsole, 201-toe part, 202-sole part, 203-foot center part, 204-heel part, 205-heel tail, 206-ventilation channel, 207-transverse rib, 208-first groove, 209-second groove, 210-bump, 300-outsole, 301-front bottom, 302-back bottom, 303-protrusion, 304-branch, 305-third groove , 306-side, 400-frame, 401-fold.

Detailed ways

The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

Example 1

Referring to Fig. 1, 2, the sole of the present invention has flexibility and torsional stability, comprises insole 100, midsole 200 and big bottom 300 that are arranged successively from top to bottom, midsole 200 adopts elastic material to make, and big bottom 300 It consists of two separate structures: the front bottom 301 and the back bottom 302. The back bottom 302 is located at the heel, and the front bottom 301 is located at the sole of the foot. It is a hollow frame structure. The inner surface of the front bottom 301 is combined with the lower surface of the midsole 200. In one piece, the midsole 200 is provided with a corresponding bump 210 in the hollow of the front bottom 301. The bump 210 passes through the hollow, coincides with the outer surface of the front bottom 301, and is closely bonded to the periphery of the hollow structure. In this way, the outsole 300 limits the midsole 200 of elastic material in the form of a frame at the sole of the foot, which not only makes the sole have good elasticity, but also controls the bending deformation of the sole within a certain range, increasing torsional stability. 200 is an elastic material, and the midsole and the outsole are combined into one, which can make the sole at the sole of the foot both strong and have good deformation ability. Avoiding cavities makes the overall structure more stable, the pressure is more uniform, and the soles of the feet feel soft and comfortable without foreign body sensation.

The hollow frame structure of the front bottom 301 is composed of vertically arranged side by side, laterally extending straight branch ribs 304 and two side edges 306 connecting the two ends of the branch ribs 304. Form the hollow structure.

The adjacent branch ribs 304 are inwardly recessed to form first grooves 208 that extend laterally and are arranged longitudinally, and the outward facing surface of the protrusion 210 that is set in the first groove 208 and protrudes from the hollow structure is correspondingly inward. concave structure.

The hollow structures in the first grooves 208 are elongated, and the length of the hollow structures in the middle is greater than the length of the hollow structures at both ends along the longitudinal direction.

The ribs 304 are provided with evenly staggered protrusions 303, which can increase the ground adhesion, strengthen the strength of the foot, and also have the effect of absorbing impact. The protrusions 303 are evenly arranged in a staggered manner on the branch edges 304 to form a mesh drainage groove, which greatly enhances the anti-skid and waterproof effects. The protrusion 303 is triangular in shape.

The front sole 301 extends forward and upward with a certain curvature, encloses the midsole 200 at the toe and protrudes from the upper surface of the inner sole 100, forming a round and high tongue to enclose the toe, which can protect the instep and extensor tendon The effect of back bottom 302 is approximately U-shaped, and edge protrudes, and the 3rd groove 305 is formed inside, and this structure is designed according to the main wearing zone of sole heel, can strengthen the wear resistance of sole heel. The rear bottom 302 extends backward and upward with a curvature greater than that of the front bottom 301 , wraps the midsole 200 at the end of the heel and is tightly connected with the inner bottom 100 . This kind of curved surface design is beautiful and generous, which also makes the overall line smoother and the structure more stable. At the same time, it wraps the midsole to protect the midsole and avoid wear and tear.

The sole with flexibility and torsional stability also includes a frame 400 arranged outside the side of the midsole 200 to accommodate the midsole 200 therein. The frame 400 is adapted to the shape of the side of the midsole 200. The side ends are integrated with the edges of the inner bottom 100 and the outsole 300 respectively, the frame 400 is made of elastic material, and there is a gap between the frame 400 and the midsole 200 . In this way, since the frame 400 for accommodating the midsole 200 is arranged outside the side of the midsole 200, and there is a gap between the frame 400 and the midsole 200, the midsole 200 and the frame 400 are both elastic materials, so the midsole 200 and frame 400 form a structure that can absorb and release energy through its own structure. Specifically, when subjected to downward pressure, the elastic midsole 200 and frame 400 are compressed, and the gap between the two forms a space between the two. The receiving space for compression and deformation can make the two bear greater pressure and impact. During exercise, the bending deformation of the sole can be controlled within a certain range, and the exercise energy can be recovered within a certain range, which plays a good role in body shaping. Exercise effect. And because the midsole 200 is an integrated elastic body, it itself has a huge energy absorption and release capacity, and due to the integrated elastic structure of the midsole 200, the foot will not feel special bumps when it is pressed. In addition, the frame 400 and the elastic body can be conveniently mass-produced and combined, which greatly reduces the processing cost. The elastic body such as the midsole 200 and the frame 400 can be made of plastic or other integrated elastic materials As a result, compared with the cushion shoes that must be composed of a single spring combination, not only the cost is reduced, but the durability is also greatly improved.

The frame 400 is made of a transparent material, and the shock-absorbing structure of the midsole 200 can be seen visually, which increases the appearance and is also convenient for observing the damage of the midsole 200 in use; the elasticity of the midsole 200 is smaller than that of the frame 400, and the midsole 200 TPU plastic material is used to better support large impacts.

The frame 400 is combined with the edges of the inner bottom 100 and the outsole 300 by bonding, which can simplify the molding equipment and reduce the cost compared with integral molding.

The lower end of the frame 400 extends inwardly to form a folded edge 401, the bottom edge of the midsole 200 is bonded to the inner surface of the folded edge 401, the upper edge of the outsole 300 is bonded to the lower surface of the folded edge 401, and the folded edge 401 is convenient The combination of the frame 400 with the midsole 200 and the outsole 300 is more convenient for the special structural design of the outsole 300 .

The midsole 200 is divided into the toe part 201, the sole part 202, the sole part 203, the heel part 204 and the heel tail part 205 sequentially from the front to the rear. The middle of the sole part 202 and the middle of the heel part 204 are relatively thick, and the middle of the heel part 204 The thickness is greater than the middle thickness of the sole part 202, while the toe part 201 and the heel tail part 205 shrink to zero thickness at their ends respectively, and the thickness of the sole part 203 shrinks smoothly from the middle of the sole part 202 and the middle of the heel part 204 to the center of the sole part 203 The thinnest part is formed at the center of the sole part 203, and the longitudinal sides of the toe part 201, the sole part 202, the sole part 203, the heel part 204 and the heel tail part 205 form a structure similar to the longitudinal section of a long gourd in sequence, and are located at the sole part The upper surface of 202 is relatively flat, and this structure makes the heel portion 204 and sole portion 202, which are concentrated in force, thicker and can withstand large pressure well; the lower part of the inner bottom 100 matches the upper surface of the midsole 200, and the outsole 300 and The lower surface of the midsole 200 matches, and the length of the insole 100 and the outsole 300 are slightly longer than the midsole 200 at the tip of the toe and the heel end, and the insole 100 and the outsole 300 are connected at the ends longer than the midsole 200. Bonded as a whole; the frame 400 adapted to the side shape of the midsole 200 wraps the midsole 200 on the left and right sides of the midsole 200 . The structure formed in this way can make the inner sole 100 and the outsole 300 with relatively hard materials protect the midsole 200 well.

The insole 100 arch is provided with a cavity 101 that runs through and is integrally formed with the insole 100. The setting of the cavity 101 makes the lower surface of the insole 100 form a downward convex structure toward the arch of the foot, so as to be in line with the upper surface of the midsole 200. Correspondingly, the upper surface of the midsole 200 is a relatively flat surface; these structures are both beautiful and material-saving. The cavity 101 of the insole 100 along the longitudinal section of the shoe is an olive-shaped structure with a high middle and low ends, and the curvature of the upper side is smaller than that of the lower side. Designed according to the comfortable curve of the human foot arch, it fully supports the stress-bearing parts and increases the support and pressure-relieving ability of the arch. The material of the inner bottom 100 is a hard material; the hard material is carbon fiber plate, steel or hard TPU material, that is, a variety of one-time molding materials can be used to facilitate the production of shoes with different strengths to meet different needs.

The sole and heel of the inner sole 100 are provided with hollow structures; the upper part of the midsole 200 matches the hollow of the inner sole 100, and the upper surface of the inner sole 100 naturally forms a curved surface that matches the shape of the sole of the foot. A part of the soft midsole 200 is combined with the inner bottom 100, which can make the sole of the foot feel more comfortable, and also saves materials, making the sole lighter. The process also ensures the stability of the shoe. Therefore, the production efficiency of the inner bottom 100 is improved, and the product cost is reduced. In addition, the elastic material of the midsole 200 can penetrate into the inner sole 100 to form a cushioning and shock absorption area, so that the hard inner sole 100 of the shoe is elastic in the area where the force is applied. When stamped, the elastic material will absorb energy and produce deformation. , Play a role in cushioning and protecting the fragile joints of the foot.

The upper and lower surfaces of the heel portion 204 of the midsole 200 are respectively vertically arranged up and down correspondingly with at least two ventilating channels 206 that pass through horizontally, and transverse ribs 207 are formed between the two ventilating channels on the upper surface of the heel portion 204 of the midsole 200, as shown in Figure 3 , the transverse rib 207 slightly protrudes from the upper surface of the inner sole 100 at the hollow part of the heel part of the inner sole 100 . During the exercise, the vent hole 206 is repeatedly squeezed, and the internal air forms a reciprocating airflow to achieve the function of buffering and shock absorption. In addition, the left and right sides of the midsole 200 are covered by the transparent frame 400 , which can prevent the edges of the midsole 200 from being exposed and the ventilation holes 206 from being blocked by mud.

A second groove 209 is provided on the lower surface of the midsole 200 between the heel portion and the sole portion at the portion connected to the hem 401 .

The upper surface side of the front bottom 301 is tightly bonded to the corresponding part of the hem 401, and the upper surface side of the rear bottom 302 is closely bonded to the corresponding part of the hem 401. This structure not only saves materials, but also facilitates anti-slip design. The front end 301 and the rear end 302 are made of hard elastic plastics, which are less elastic than the middle end.

Example 2

The difference from Embodiment 1 is that the hollow frame structure of the front bottom is composed of corrugated ribs running through horizontally and the sides connecting the ribs. The front end of the frame structure is closed and the rear end is open, similar to a ladder.

Example 3

The difference from Example 1 is that the branch ribs are provided with uniformly staggered protrusions, and the protrusions are diamond-shaped.

The present invention is not limited to the structures of the embodiments shown in FIGS. 1 to 3 . As long as the front bottom adopts a hollow frame structure, the lower part of the midsole fits with the hollow of the front bottom, and the midsole protrudes correspondingly in the hollow part of the front bottom. All fall within the protection scope of the present invention.

Claims (15)

1. A shoe sole with flexibility and torsional stability, comprising an insole, a midsole and a large bottom arranged sequentially from top to bottom, characterized in that the midsole is made of elastic material; the large bottom consists of two sections Separation structure: the front bottom and the rear bottom are composed of two parts. The rear bottom is located at the heel, and the front bottom is located at the sole of the foot. It is a hollow frame structure. The inner surface of the front bottom is integrated with the lower surface of the middle bottom. The midsole is provided with corresponding bumps at the hollowed out part of the front bottom, and the bumps pass through the hollowed out part, coincide with the outer surface of the front bottom, and are closely bonded to the periphery of the hollowed out structure. The hollowed out frame structure of the front bottom It consists of straight branch ribs arranged side by side in the longitudinal direction and extending transversely, and two sides connecting the two ends of the branch ribs, and the hollow structure is enclosed between the adjacent branch ribs and the opposite sides. 2. The shoe sole with flexibility and torsional stability according to claim 1, characterized in that, the adjacent ribs are recessed inwardly to form first grooves extending transversely and arranged longitudinally, said The outward facing surface of the protrusion disposed in the first groove and protruding from the hollow structure is correspondingly a concave structure. 3. The shoe sole with flexibility and torsional stability according to claim 2, characterized in that, the hollow structures in the first grooves are elongated, and the length of the hollow structures in the middle of the longitudinal direction is greater than The length of the hollow structure at both ends. 4. The shoe sole with flexibility and torsional stability according to claim 1, characterized in that, said branch ribs are provided with uniformly staggered protrusions, and said protrusions are triangular in shape. 5. The shoe sole with flexibility and torsional stability according to claim 1, characterized in that, the front bottom extends forward and upward with a certain curvature, wraps the midsole at the toe and protrudes from the upper surface of the inner bottom , forming a round and high tongue to wrap the toe; the rear bottom is approximately U-shaped, with protruding edges, and a third groove is formed inside, and the rear bottom has a curvature greater than that of the front bottom extending forward and upward Extending upward and backward, wrapping the midsole at the end of the heel and tightly connecting with the inner bottom. 6. The shoe sole with flexibility and torsional stability according to claim 1, characterized in that, the said shoe sole with flexibility and torsional stability also includes a set outside the side of the midsole to accommodate the midsole The inner frame, the frame is adapted to the shape of the side of the midsole, the upper side end and the lower side end of the frame are combined with the edges of the inner bottom and the outsole respectively, and the frame is elastic material, there is a gap between the frame and the midsole. 7. The sole with flexibility and torsional stability according to claim 6, wherein the frame is made of transparent material, the elasticity of the midsole is smaller than that of the frame, and the midsole adopts TPU plastic material. 8 . The shoe sole with flexibility and torsional stability according to claim 6 , wherein the frame is bonded to the edge of the inner bottom and the outsole. 9. The shoe sole with flexibility and torsional stability according to claim 6, characterized in that, the lower end of the frame extends inwardly to form a folded edge, and the bottom edge of the midsole is in contact with the inner folded edge of the folded edge. Surface bonding, the upper edge of the outsole is bonded to the lower surface of the hem. 10. The shoe sole with flexibility and torsional stability according to claim 1, characterized in that, the midsole is sequentially divided into toe part, sole part, sole part, heel part and heel tail part from front to back, sole The middle of the part and the middle of the heel part are relatively thicker, and the middle thickness of the heel part is greater than the middle thickness of the sole part, while the toe part and the heel tail part are respectively contracted to zero thickness at their ends, and the thickness of the center of the foot part is respectively from the sole part. The middle of the middle and the heel part shrinks smoothly toward the center of the center of the foot, and the thinnest part is formed in the center of the center of the foot. The longitudinal sides of the toe part, sole part, center of foot, heel part and heel tail form a longitudinal section similar to a long gourd structure, and the upper surface at the sole of the foot is relatively flat; the lower part of the insole matches the upper surface of the midsole, the outsole matches the lower surface of the midsole, and the insole and the toe end and the heel end The length of the outsole is slightly longer than the midsole, and the inner bottom and the outsole are connected and bonded together at the two ends longer than the midsole; the frame matching the side shape of the midsole is in the The left and right sides of the midsole cover the midsole. 11. The shoe sole with flexibility and torsional stability according to claim 1, characterized in that, the arch of the insole is provided with a cavity that penetrates transversely and is integrally formed with the insole, and the cavity The setting of the cavity makes the lower surface of the inner bottom form a downward convex structure toward the arch of the foot to match the upper surface of the midsole, which is a relatively straight surface, and the cavity of the inner bottom The cross-section along the longitudinal direction of the shoe is an olive-shaped structure with a high middle and low ends, and the arc of the upper side is smaller than that of the lower side. The inner and outer sides of the cavity gradually open with a smooth curved surface, showing a half-moon shape; the material of the inner bottom is hard Material; the hard material is carbon fiber plate, steel or hard TPU material. 12. The shoe sole with flexibility and torsional stability according to claim 1, characterized in that, the sole part and the heel part of the inner bottom are provided with hollow structures; fit, the upper surface of the inner sole naturally forms a curved surface that matches the shape of the sole of the foot. 13. The shoe sole with flexibility and torsional stability according to claim 10 or 12, characterized in that, the upper and lower surfaces of the heel portion of the midsole are respectively arranged vertically and correspondingly provided with at least two horizontally penetrating air passages A transverse rib is formed between two air passages on the upper surface of the heel portion of the midsole, and the transverse rib slightly protrudes from the upper surface of the inner bottom at the hollow part of the heel portion of the inner bottom. 14. The shoe sole with flexibility and torsional stability according to claim 9, characterized in that a second groove is provided at the part where the arch of the foot on the lower surface of the midsole is connected to the hem. 15. The shoe sole with flexibility and torsional stability according to claim 9, characterized in that, the side edges of the upper surface of the front bottom are closely bonded to the corresponding parts of the folded edges, and the upper surface side of the rear bottom is The corresponding parts of the edge and the hem are closely bonded, and the front end and the rear end are made of hard elastic plastics, whose elasticity is smaller than that of the middle end.

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