CN220255830U - Composite sole and shoe - Google Patents

Abstract

The utility model discloses a composite sole, which comprises an upper midsole, a hard supporting layer, a lower midsole and an outsole which are overlapped from top to bottom, wherein the hard supporting layer comprises a first ejection part and a second ejection part, the bifurcation position of the first ejection part and the second ejection part is arranged at a front midfoot region, the first ejection part and the second ejection part are arranged at an included angle from the bifurcation position towards the direction of the heel of the sole, an ejection attachment part is arranged between the first ejection part and the second ejection part, the ejection attachment part is arranged at the heel of the sole, and a midfoot hollowed-out structure is formed among the first ejection part, the second ejection part and the ejection attachment part. The composite sole and the shoe are matched with peak ground reaction force peak force, so that the deformation space of the hollow structure of the midfoot is increased, the cushioning formation of the midfoot region is improved, the impact of the ground on a human body is reduced, meanwhile, the rapid braking is realized, the powerful rebound potential energy is provided for the foot, meanwhile, the transition conduction from the braking to the pedaling process is smoother and more efficient, and the ejection boosting effect on the foot is improved.

Description

Composite sole and shoe

Technical Field

The utility model relates to the field of shoes, in particular to a composite sole and a shoe.

Background

With the rise of body building of the whole people, the physical ability and the muscle strength of runners are obviously enhanced in daily training and racing, the muscle ability enhancement can improve the action control and protection ability of the runners in the running process, at present, more of all large sports brands are based on the premise that the muscles have enough muscle strength in the research and development of racing running shoes, the hard supporting layer is embedded into the midsole to adjust the lever fulcrum of the half sole, the ankle joint and the action arm of force of the metatarsophalangeal joint, and the high-elastic midsole material is overlapped to further improve the half sole propulsion, so that the athletic performance of the racing running shoes is improved.

In long-distance running, physical strength of the second-half runner is reduced or tired, lower limbs and foot muscles are tired, the muscle strength of the muscles is reduced, and enough rebound potential energy and buffering effect cannot be provided for heel strike to midfoot transition. Therefore, designing a running shoe that can compensate for myotonic work to provide sufficient rebound potential energy when heel strike transitions to midfoot is important to promote athletic performance of the runner.

Disclosure of Invention

The utility model aims to provide a composite sole and a shoe, which are matched with the peak force of the vertical ground reaction force, so that the deformation space of a midfoot hollowed-out structure is increased, the cushioning formation of a midfoot area is improved, the impact of the ground on a human body is reduced, and meanwhile, the rapid braking is realized. The specific technical scheme is as follows:

the utility model provides a compound sole, including upper midsole, stereoplasm supporting layer and the lower floor midsole that top-down overlapped the setting, be provided with the division groove on the stereoplasm supporting layer, divide the division groove to divide out first ejection portion and second ejection portion on the stereoplasm supporting layer, the one end that the division groove is close to sole toe is the branching position of first ejection portion and second ejection portion, branching position is located the preceding midfoot region department of stereoplasm supporting layer, first ejection portion and second ejection portion are the contained angle setting towards the direction at sole heel place from branching position department, be provided with ejection attachment portion between first ejection portion and the second ejection portion, the ejection attachment portion is located the heel department of sole, form midfoot hollow structure between first ejection portion, second ejection portion and the ejection attachment portion.

Further, the midfoot hollowed-out structure extends from the fork position to the ejection attachment part along the direction of pointing the toe to the heel.

Further, the bifurcation position of the first ejection part and the second ejection part is positioned in the area of 55% -62% of the linear distance from the heel of the hard supporting layer to the half sole direction.

Further, the first ejection part extends upwards from the front midfoot region of the hard supporting layer towards the heel direction in an arc shape, the first ejection part is semi-annular, and a hollow region is formed in the middle of the first ejection part.

Further, the second ejection part extends downwards from the front midfoot region of the hard supporting layer towards the heel direction in an arc shape and is positioned right below the hollow region of the first ejection part.

Further, the hard supporting layer further comprises a half sole part, the rigidity of the area where the bifurcation positions of the first ejection part and the second ejection part are located is greater than that of the second ejection part, the rigidity of the second ejection part is greater than that of the first ejection part, and the rigidity of the first ejection part is greater than that of the half sole part.

Further, the bifurcation positions of the first ejection part and the second ejection part are correspondingly arranged behind the metatarsophalangeal joints of the human foot.

Further, the ejection attachment part is arranged at the bottom of the heel of the upper midsole and protrudes downwards from the lower surface of the upper midsole, and the ejection attachment part is narrowed from the bottom of the heel of the upper midsole to the middle area from the inner side and the outer side.

Further, the ejection attachment part passes through the hollow area of the first ejection part and is abutted with the upper surface of the second ejection part, so that the second ejection part is supported and rebounded.

Further, the upper midsole further comprises a bearing part, and the bearing part is attached to the upper surface of the first ejection part from the front midfoot region to the heel region, so that the damping and rebounding effects on the foot are realized.

Further, the lower midsole includes the support side wall, and the transition region department between the foreleg of lower midsole and the midfoot is located the inside and outside both sides of lower midsole, and the setting of salient lower midsole upper surface, and the support side wall includes first part and second part, and first part is from foreleg to midfoot regional bending setting up, and laminating setting with first ejection lower surface, second part is along midfoot to heel direction downward sloping setting, and first part and second part form the bellied stable bearing structure in centre.

Further, the middle position of the lower midsole from the front midfoot region to the heel region is provided with an arc-shaped downward slope-shaped transition structure, the transition structure is bent downwards according to the radian of the lower surface of the second ejection part, and the transition structure is attached to the lower surface of the second ejection part.

A shoe comprising a composite sole as described above.

According to the composite sole and the shoe, the midfoot hollowed-out structure is formed among the first ejection part, the second ejection part and the ejection attachment part, the bifurcation position of the hard supporting layer is arranged in the front midfoot region, so that the deformation space of the midfoot hollowed-out structure is increased, the shock absorption formation of the midfoot region is further improved, the pressure of the dorsum of the floor type foot and the tibia anterior muscle of the front side of the calf is reduced, the impact of the ground on a human body is reduced, and the rapid braking is realized. When the device moves, the area where the peak force of the vertical ground reaction force is located falls at the bifurcation position of the hard supporting layer, powerful rebound potential energy can be provided for the midfoot hollowed-out structure, the second ejection part can obtain maximum deformation in the pedaling and stretching process, the gravity ejection force of the heel is improved, the gravity potential energy is converted into forward propulsion kinetic energy, the boosting propulsion effect is improved, meanwhile, the transition transmission from braking to the pedaling and stretching process is smoother and more efficient, and the boosting propulsion effect is improved. In addition, the heel area of the composite sole adopts a narrowed structural design, so that the weight of the whole sole is greatly reduced.

Drawings

Fig. 1 is a front view of a composite shoe sole of the present utility model.

Fig. 2 is an exploded view of the composite shoe sole of the present utility model.

FIG. 3 is a schematic view of the structure of the upper and lower midsole and the rigid support layer according to the present utility model.

Fig. 4a is a front view of a rigid support layer in the present utility model.

Fig. 4b is a perspective view of the rigid support layer of the present utility model.

Fig. 5a is a schematic structural view of a split-type upper midsole according to the present utility model.

Fig. 5b is a schematic structural view of the integrated upper midsole according to the present utility model.

Figure 6a is a reaction view of the foot being perpendicular to the ground when heel strike.

Figure 6b is a reaction view of the foot being vertical to the ground when the midfoot and forefoot are grounded.

Figure 6c is a graph of pressure exerted on the sole of a wearer during about 50% of the touchdown period.

Detailed Description

For a better understanding of the objects, structures and functions of the present utility model, the composite shoe sole and the shoe according to the present utility model will be described in further detail with reference to the accompanying drawings.

As shown in fig. 1 to 3, the composite shoe sole of the present utility model comprises an upper midsole 1, a rigid support layer 2 and a lower midsole 3 which are overlapped from top to bottom. Wherein, the hard support layer 2 is provided with arc-shaped dividing grooves, the dividing grooves divide the hard support layer 2 into a first ejection part 21 and a second ejection part 22 from a front midfoot region, and the front midfoot region is a transition region between the half sole and the midfoot of the human foot corresponding to the hard support layer 2. The end of the dividing groove, which is close to the toe of the sole, is a bifurcation position 24 of the first ejection part 21 and the second ejection part 22, the bifurcation position 24 is positioned at the front midfoot region of the hard support layer 2, and the first ejection part 21 and the second ejection part 22 form an included angle from the bifurcation position 24 towards the direction of the heel of the sole; an ejection attachment part 11 is arranged between the first ejection part 21 and the second ejection part 22, and the ejection attachment part 11 is positioned at the heel of the sole; the midfoot hollowed-out structure 4 is formed among the first ejection part 21, the second ejection part 22 and the ejection attachment part 11.

As shown in fig. 6a and 6b, the ground impact characteristics are significantly different from one landing pattern, and the ground reaction increases with the increase in speed. As can be seen from fig. 6a-6b, in either mode, the peak force of the vertical ground reaction force acts for about 50% of the ground contact period, i.e., in the flat foot (front center of gravity); as shown in fig. 6c, the pressure 6 applied to the sole of the wearer during the touchdown period of about 50% is distributed to the connection rear end of the first to fifth metatarsals of the sole and the front end of the midfoot of 50%, and at this time, the pressure center 61 of the pressure applied to the sole is located in the region from the heel to about 60% of the forefoot, which corresponds to the forefoot region of the composite sole of the present application. Therefore, in the above-mentioned manner of setting the bifurcation position 24 of the rigid support layer 2 in the forefoot region, the deformation space of the midfoot hollowed-out structure 4 can be increased, the cushioning formation of the midfoot region is promoted, and the pressure of the dorsum of the floor and the tibia anterior muscle on the front side of the calf can be further reduced. In addition, in the process of foot landing, the area where the peak force of the vertical ground reaction force is located falls at the bifurcation position 24 of the hard support layer 2, so that powerful rebound potential energy can be provided for the midfoot hollowed-out structure 4, the gravity potential energy is converted into forward propulsion kinetic energy, and the boosting propulsion effect is improved.

Preferably, the bifurcation position 24 of the first ejection part 21 and the second ejection part 22 is further defined in a region of 55% -62% of the straight distance from the heel to the half sole direction of the rigid support layer 2. The reason for this is that in either landing mode, the vertical ground reaction force peak force is concentrated in this region of the rigid support layer 2, and when the bifurcation position 24 is provided in this region, the region where the vertical ground reaction force peak force is located corresponds to the bifurcation position 24 of the first ejection part 21 and the second ejection part 22. At this time, the second ejection portion 22 can obtain the maximum deformation during the pedaling process under the peak force of the vertical ground reaction force.

Further, the crotch position 24 is correspondingly disposed behind the metatarsophalangeal joint of the human foot, where the metatarsophalangeal joint is a half sole landing joint of the human foot, and deformation of the second ejection part 22 does not affect the pedaling force during the movement, and at the same time, can maximally promote the gravity ejection force of the heel of the sole, and provide powerful rebound potential energy for the foot.

As shown in fig. 4a-4b, the first ejection portion 21 extends upwards in an arc shape along the bifurcation position 24 towards the heel direction, the first ejection portion is semi-annular, and a hollow area is formed in the middle. The first ejection part 21 has the structural characteristics of soft middle and hard two sides, namely, the hardness of the part of the first ejection part 21 corresponding to the rear side of the heel of the human body is smaller than that of the part of the first ejection part 21 corresponding to the inner side and the outer side of the heel of the human body. The middle of the first ejection part 21 is softer, so that the impact on the heel area caused by the first peak value action of the vertical ground reaction can be buffered better, and the stability of the heel in the landing stage from landing to about 15% of the landing stage is improved; the two sides of the first ejection part 21 are harder, so that the rigidity from the grounding period to the supporting period can be increased, the transition deformation of materials is reduced, the transition time is shortened, and the first elastic part 21 can provide a powerful supporting effect for heel bones of feet.

The second ejection part 22 extends downwards from the fork position 24 towards the heel direction in an arc shape, is of a narrowed platy structure, is positioned right below the arc-shaped hollow area of the first ejection part 21, the rear foot area of the first ejection part 21 is tightly attached to the upper surface of the lower midsole 3, the second ejection part 22 is used as an auxiliary for supporting and rebounding, and is matched with the peak force of the vertical ground reaction force, so that the maximum deformation can be obtained during pedaling and stretching, and the ejection boosting effect is improved.

The ejection attachment part 11 is arranged at the bottom of the heel of the upper midsole 1 and protrudes downwards from the lower surface of the upper midsole 1, and the ejection attachment part 11 is narrowed from the lower surface of the upper midsole 1 to the middle area from the inner side and the outer side. The ejection attachment portion 11 is made of a high-elastic material, and can pass through the arc-shaped hollow area of the first ejection portion 21 from top to bottom to be abutted with the upper surface of the heel area of the second ejection portion 22, so as to provide a pedal spring-like effect for the ejection of the second ejection portion 22 in the movement process.

The midfoot hollowed-out structure 4 extends from the branching position 24 of the first ejection part 21 and the second ejection part 22 to the ejection attachment part 11 along the direction that the toe points to the heel. The compression deformation of the midfoot hollow structure 4 can store energy, the power assisting step can quickly release the energy and store the energy in a supporting stage, the rebound effect of the sports is quicker and more remarkable, and the injury risk of the knee joint and the ankle joint is effectively reduced.

As shown in fig. 5a-5b, the upper midsole 1 further includes a supporting portion 12, the periphery of the supporting portion 12 includes a sidewall protection structure 121, the sidewall protection structure 121 can prevent the foot from turning inside out, the supporting portion 12 is attached to the first ejection portion 21 from the front midfoot region, and provides shock absorption and rebound effects for the foot during running, and sufficient supporting and protecting effects are provided.

The ejection attachment portion 11 and the support portion 12 may be of an integral structure or a separable structure. Preferably, the two are defined as an integral structure, avoiding the influence of the connection instability on the rebound performance of the ejection attachment portion 11.

As shown in fig. 3, the lower midsole 3 includes a supporting sidewall 32 and a narrowed heel 31. The supporting side walls 32 are positioned on two side edges of the front palm and midfoot region on the upper surface of the lower midsole 3 and protrude out of the upper surface of the lower midsole 3, the supporting side walls 32 comprise a first part 321 and a second part 322, and the first part 321 is bent upwards from the front palm to the midfoot region and is attached to the lower surface of the first ejection part 21; the second portion 322 is disposed obliquely downward in the direction from the midfoot to the heel, and one end near the heel coincides with the upper surface of the midsole 3 in the lower layer, and the first portion 321 and the second portion 322 form a stable supporting structure with a raised middle, so as to provide powerful supporting and protecting effects for the first ejection portion 21.

The interval area of the supporting side wall 32 is provided with a transition structure 34 with a gentle slope relative to the supporting side wall 32, the transition structure 34 is positioned at the middle position of the front palm and the midfoot area on the upper surface of the lower midsole 3, the transition structure 34 bends downwards according to the radian of the lower surface of the second ejection part 22, and the transition structure is arranged from the front midfoot area to the heel area of the upper midsole 1 to be attached to the lower surface of the second ejection part 22, so that the second ejection part 22 is supported and protected.

The heel area of the lower midsole 3 conforms to the shape of the lower surface of the second ejection part 22, a narrowing structure 31 is formed from the inner side and the outer side of the sole to the middle area, the narrowing structure 31 is attached to the lower surface of the second ejection part 22, the second ejection part 22 is protected from contacting the ground, a certain buffering effect is achieved, and the feeling of a foot falling to the ground is improved.

In summary, the second ejection part 22 serves as a narrowed heel ejection member, diverges from the first ejection part 21 in the heel direction at the front midfoot region of the rigid support layer 2, and the width of the first ejection part 21 is larger than that of the second ejection part 22, so that the support performance in the process of landing to pedal and stretching is ensured, and the ejection effect is improved. The second ejection part 22 can play a role of a springboard similar to a saddle horse jumping aid, in the running process, a runner falling to the ground through the middle foot and the front foot can adopt the middle foot and the front foot to fall to the ground in the running process, but after the physical strength is reduced or tired, the falling mode of the runner can be changed, the hybrid falling mode is changed, the heel is slightly lowered after the middle front foot falls to the ground, the ground with a light point is transited forward again, in the process of slightly lowering the heel, the second ejection part 22 is used as an auxiliary structure for supporting and rebounding, the running economy of the runner falling to the ground through the middle foot can be greatly improved, and in the supporting period, the vertical ground reaction force peak force is converted into the forward propulsion through the deformation rebounding of the middle foot hollowed-out structure 4, so that the power assisting propulsion effect is improved. Meanwhile, as the heel area of the composite sole adopts a narrowed structural design,

the heel area of the lower midsole 3 is narrowed and designed according to the shape of the second ejection part 22, so that the weight of the whole sole can be greatly reduced, the landing running posture of a runner can be adjusted, the ankle dorsiflexion angle at the landing time and the included angle between the shoe and the ground in the sagittal plane are reduced, the landing is guided to the half sole to land, the muscle work of the shank anterior muscle at the dorsum of the landing foot and the anterior shank of the shank is reduced, further, the maximum impact of the heel area is buffered, namely, the effect of the first peak value of the vertical ground reaction is better, the peak load rate and the peak load rate of the ground impact at the landing stage are reduced, and the damage risk of the musculoskeletal system of the lower limb is reduced. And the second ejection part 22 extending downwards in an arc shape gradually increases the rigidity from the landing period to the supporting period, reduces the deformation of transitional materials and shortens the transitional time.

When the sole is stressed by the trampling of the human foot, the ejection attachment part 11 positioned between the first ejection part 21 and the second ejection part 22 can play a spring-like rebound effect by utilizing the high-elasticity characteristic of the ejection attachment part, the first ejection part 21 is pressed downwards towards the second ejection part 22 to enable the midfoot hollowed-out structure 4 to be compressed and deformed, so that a shock absorption and buffering effect is provided for the human foot, and meanwhile, energy is stored; when the foot is pedaled, the peak force of the vertical ground reaction force acts on the bifurcation position 24 of the rigid supporting layer 2, the second ejection part 22 can generate maximum deformation, the maximum gravity ejection force of the heel is lifted, the powerful rebound potential energy is provided, meanwhile, the transition conduction from braking to pedaling is smoother and more efficient, and the pedaling and stretching pushing effect is better provided.

The half sole part 23 of the hard supporting layer 2 is integrally spoon-shaped, and one end close to the toe is tilted upwards to form a pedal structure, so that the half sole of the human foot can roll forwards during exercise, and the athletic performance is improved. The half sole areas of the upper midsole 1 and the lower midsole 3 are in compliance with the spoon-shaped structural design of the half sole part 23 of the hard supporting layer 2, so that the rigidity of the half sole area is increased, the bending movement range of the metatarsophalangeal joints is reduced, the hard supporting layer 2 is matched with the high-elastic materials of the upper midsole 1 and the lower midsole 3, elasticity and energy storage media can be provided for pedaling and stretching, the fulcrum of the half sole area is moved forward, the moment of the metatarsophalangeal joints is increased, and the pedaling and stretching efficiency is further improved.

The upper midsole 1 and the lower midsole 3 can be communicatedThe ultra-supercritical foaming or chemical foaming molding process is prepared from one, two or more materials of nylon elastomer, polyurethane, thermoplastic polyurethane (comprising aromatic type and aliphatic type), casting polyurethane, mixing polyurethane, thermoplastic polyether ester elastomer, ethylene-octene copolymer, ethylene-octene block copolymer, ethylene-vinyl acetate copolymer, styrene-butadiene-styrene block copolymer, hydrogenated styrene-butadiene-styrene block copolymer, high-styrene rubber, brominated butyl rubber, butadiene rubber, silicon rubber, ethylene propylene diene monomer rubber, natural rubber, isoprene rubber, nitrile rubber and chloroprene rubber. It is characterized by hardness of 40-45C and density of 0.12-0.18g/cm ³ . The material is light, soft and elastic, and can provide excellent shock absorption and rebound effects for the midfoot position to the half sole position of the human foot in the running process.

The hard supporting layer 2 is characterized by having a shore D hardness of 50-95, and is a composite material formed by using at least one of phenolic resin or thermoplastic resin, thermoplastic polyurethane, polycarbonate, polymethyl methacrylate, nylon elastomer, polyester elastomer, polyketone, polyether ether ketone, polyether ketone, polyether sulfone, polyphenylene sulfide, and ABS (acrylonitrile-butadiene-styrene copolymer) or inorganic filler or long fiber or short fiber (not limited to carbon fiber, glass fiber, aramid fiber, ultra-high molecular weight polyethylene fiber, polyarylate fiber, basalt fiber, polyester fiber, and the like).

The composite sole of the utility model also comprises an outsole 5 which has the shape consistent with the shape of the lower surface of the lower midsole 3 and is arranged at the bottom of the lower midsole 3 in a fitting way. The outsole 5 is made of one or more rubber or elastomer materials selected from styrene-butadiene rubber, brominated butyl rubber, butadiene rubber, silicone rubber, ethylene propylene diene rubber, natural rubber, isoprene rubber, nitrile rubber, chloroprene rubber, nylon elastomer, polyurethane (thermoplastic polyurethane (including aromatic type and aliphatic type), casting polyurethane and mixing polyurethane), thermoplastic polyether ester elastomer, ethylene-octene copolymer, ethylene-octene block copolymer, ethylene-vinyl acetate copolymer, styrene-butadiene-styrene block copolymer, hydrogenated styrene-butadiene-styrene block copolymer and high styrene rubber, and the outsole 5 is made of one or more rubber or elastomer materials according to a reasonable formula, so that the outsole 5 has excellent slip resistance and fatigue wear resistance, the practical running motion requirement can be met by the thinnest thickness, the thickness and weight of the sole are effectively reduced, the functional requirements of light shoes are realized, and better wearing experience is provided for a wearer.

Example 1: in order to provide optimal force feedback performance in combination with the rigid support layer 2, the upper midsole 1 and the lower midsole 3 are preferably made of nylon elastomer material, and have the advantage of having a density of 0.12-0.14g/cm ³ The Shore C hardness was 42±3, the rebound (Energy return) was 80%, and the Peak acceleration (Peak G) was 10.1, which provided the effects of light weight and high spring.

The rigid support layer 2 is preferably a carbon fiber/glass fiber/epoxy resin composite material, each layer has a thickness of 0.12mm and a total thickness of 1.0mm.

Further, the rigid arrangement of the four areas of the hard support layer is as follows: the stiffness of the area where the bifurcation position 24 of the first ejection part 21 and the second ejection part 22 is located is greater than the stiffness of the second ejection part 22, the stiffness of the second ejection part 22 is greater than the stiffness of the first ejection part 21, and the stiffness of the first ejection part 21 is greater than the stiffness of the half sole part 23. The layering mode of each region is as follows:

the first ejection part 21 needs to have better support and stability, and the area is preferably made of carbon fiber/glass fiber/epoxy resin composite material, each layer is 0.12mm thick, the total thickness is 1.2mm, and the layering mode is as follows:

(1) First layer 3K carbon fiber twill

(2) Second layer 45 degree carbon fiber unidirectional tape

(3) Third layer-45 degree carbon fiber unidirectional tape

(4) Fourth layer 90 degree carbon fiber unidirectional tape

(5) Fifth layer 90 degree carbon fiber unidirectional tape

(6) Sixth layer 90 degree carbon fiber unidirectional tape

(7) Seventh layer 90 degree carbon fiber unidirectional tape

(8) Eighth layer-45 degree carbon fiber unidirectional tape

(9) Ninth layer 45 degree carbon fiber unidirectional tape

(10) Tenth layer 3K carbon fiber twill.

The second ejection portion 22 provides resilience, requires a certain degree of deformation, and also requires sufficient support, and therefore requires a certain toughness and a sufficient rigidity, and this region is preferably a carbon fiber/glass fiber/epoxy composite material, each layer being 0.12mm thick, 1.4mm total thickness, layering:

(1) First layer 3K carbon fiber twill

(2) Second layer 45 degree carbon fiber unidirectional tape

(3) Third layer 60 degree carbon fiber unidirectional tape

(4) Fourth layer-60 degree carbon fiber unidirectional tape

(5) Fifth layer 90 degree glass fiber unidirectional tape

(6) Sixth layer 90 degree carbon fiber unidirectional tape

(7) Seventh layer 90 degree carbon fiber unidirectional tape

(8) Eighth layer 90 degree glass fiber unidirectional tape

(9) Ninth layer 60 degree carbon fiber unidirectional tape

(10) Tenth layer-60 degree carbon fiber unidirectional tape

(11) Eleventh layer 45 degree carbon fiber unidirectional tape

(12) Twelfth layer 3K carbon fiber twill

The half sole portion 23 is required to be bent, so that lower rigidity is required, the region is preferably made of a carbon fiber/glass fiber/epoxy resin composite material, each layer is 0.12mm thick, the total thickness is 1.2mm, and the layering mode is as follows:

(1) First layer 3K carbon fiber twill

(2) Second layer 45 degree carbon fiber unidirectional tape

(3) Third layer-45 degree carbon fiber unidirectional tape

(4) Fourth layer 90 degree glass fiber unidirectional tape

(5) Fifth layer 90 degree carbon fiber unidirectional tape

(6) Sixth layer 90 degree carbon fiber unidirectional tape

(7) Seventh layer 90 degree glass fiber unidirectional tape

(8) Eighth layer-45 degree carbon fiber unidirectional tape

(9) Ninth layer 45 degree carbon fiber unidirectional tape

(10) Tenth layer 3K carbon fiber twill

The bifurcation site 24 is most stressed, is easy to break, and needs to have enough support, so the bifurcation site 24 needs to have the greatest rigidity in the area, and the area is preferably made of a carbon fiber/glass fiber/epoxy resin composite material, each layer is 0.12mm thick, the total thickness is 1.6mm, and the layering mode is as follows:

(1) First layer 3K carbon fiber twill

(2) Second layer 45 degree carbon fiber unidirectional tape

(3) Third layer-45 degree carbon fiber unidirectional tape

(4) Fourth layer 60 degree carbon fiber unidirectional tape

(5) Fifth layer-60 degree carbon fiber unidirectional tape

(6) Sixth layer 90 degree glass fiber unidirectional tape

(7) Seventh layer 90 degree carbon fiber unidirectional tape

(8) Eighth layer 90 degree carbon fiber unidirectional tape

(9) Ninth layer 90 degree glass fiber unidirectional tape

(10) Tenth layer-60 degree carbon fiber unidirectional tape

(11) Eleventh layer 60 degree carbon fiber unidirectional tape

(12) Twelfth layer-45 degree carbon fiber unidirectional tape

(13) Thirteenth layer 45 degree carbon fiber unidirectional tape

(14) Fourteenth layer 3K carbon fiber twill

The outsole 5 can be made of casting polyurethane, and has excellent wear resistance, and the performances are as follows: hardness (Shore A) 62, density 1.20g/cm3, tensile strength 13.4MPa, elongation at break 632%, right-angle tear strength 59.6N/mm, aldrich abrasion (1.61 km) 0.03cm3, DIN abrasion 11mm3, resistance to yellowing 4, resistance to aging 4.

According to the composite sole and the shoe, the design of ground reaction force and lifting motion performance is combined, and the bifurcation position 24 of the rigid support layer 2 is arranged at the position of the peak force of the vertical ground reaction force, so that the ejection part can obtain maximum deformation, the deformation space of the midfoot region is increased, the cushioning formation of the midfoot region is promoted, the impact of the ground on a human body is reduced, and meanwhile, the rapid braking is realized. The bottom heel structure is narrowed, the falling running gesture can be adjusted, and the falling to the middle half sole is guided to land. The narrowed heel is matched with the vertical ground reaction force to eject, boost and compress the midfoot hollowed-out structure to deform to provide powerful rebound potential energy for the foot, so that the transition conduction from braking to pedaling is smoother and more efficient, and the pedaling and stretching pushing effect can be better provided.

The utility model has been further described with reference to specific embodiments, but it should be understood that the detailed description is not to be construed as limiting the spirit and scope of the utility model, but rather as providing those skilled in the art with the benefit of this disclosure with the benefit of their various modifications to the described embodiments. The individual technical features described in the above embodiments may be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, various possible combinations of embodiments of the present utility model are not described in detail.

If directional indications (such as up, down, left, right, front, and rear … …) are involved in the embodiments of the present utility model, the directional indications are merely used to explain the relative positional relationship, movement, etc. between the components in a particular gesture (as shown in the drawings), and if the particular gesture is changed, the directional indications are correspondingly changed.

Claims (13)

1. The utility model provides a compound sole, a serial communication port, including top-down overlapping setting's upper midsole, the stereoplasm supporting layer, lower floor midsole and big end, be provided with the partition groove on the stereoplasm supporting layer, the partition groove is divided first ejection portion and second ejection portion on the stereoplasm supporting layer, the one end that the partition groove is close to sole toe is the branching position of first ejection portion and second ejection portion, branching position is located the preceding midfoot region department of stereoplasm supporting layer, first ejection portion and second ejection portion are from branching position department and are the contained angle setting towards the direction that the sole heel is located, be provided with between first ejection portion and the second ejection portion and launch the interpolation portion, it is located the heel department of sole to launch the interpolation portion, form midfoot hollow structure between first ejection portion, second ejection portion and the interpolation portion.

2. The composite shoe sole of claim 1, wherein the midfoot hollowed-out structure extends from the crotch location to the ejection attachment portion in a direction from the toe to the heel.

3. The composite shoe sole of claim 1, wherein the crotch point of the first ejection portion and the second ejection portion is located in the region of 55% -62% of the linear distance from the heel to the forefoot direction of the rigid support layer.

4. The composite shoe sole of claim 1, wherein the first ejection portion extends upwardly in an arc from a forefoot region of the rigid support layer toward a heel direction, the first ejection portion being semi-annular in shape with a hollow region formed in a central portion thereof.

5. The composite shoe sole of claim 4 wherein the second ejection portion extends arcuately downwardly from the forefoot region of the rigid support layer toward the heel direction directly below the hollow region of the first ejection portion.

6. The composite shoe sole of claim 1 wherein the rigid support layer further comprises a forefoot portion, the first ejection portion and the second ejection portion being bifurcated to a region having a stiffness greater than the stiffness of the second ejection portion, the second ejection portion being stiffer than the first ejection portion, the first ejection portion being stiffer than the forefoot portion.

7. A composite sole according to claim 1 or 3, wherein the bifurcation of the first and second ejection portions is located behind the metatarsophalangeal joint of a human foot.

8. The composite shoe sole according to any one of claims 1 to 6, wherein the ejection attachment portion is provided at a heel bottom portion of the upper midsole, protruding downward from a lower surface of the upper midsole, and the ejection attachment portion is narrowed from the heel bottom portion of the upper midsole from the inner side to the outer side toward the middle region.

9. The composite shoe sole of claim 8 wherein the ejection attachment portion passes through the hollow region of the first ejection portion and abuts the upper surface of the second ejection portion to provide support and rebound for the second ejection portion.

10. The composite shoe sole according to any one of claims 1 to 6, wherein the upper midsole further comprises a support portion, and the support portion is disposed in contact with the upper surface of the first ejection portion from the forefoot region to the heel region to provide shock absorption and rebound to the foot.

11. The composite shoe sole of claim 1 or 6, wherein the lower midsole includes a support sidewall at a transition region between a forefoot and a midfoot of the lower midsole, on both inner and outer sides of the lower midsole, and protruding from an upper surface of the lower midsole, the support sidewall including a first portion and a second portion, the first portion being upwardly curved from the forefoot to the midfoot region and disposed in engagement with a lower surface of the first ejector portion, the second portion being downwardly sloped in a midfoot to heel direction, the first portion and the second portion forming a medial convex stable support structure.

12. The composite shoe sole of claim 11, wherein the intermediate position of the lower midsole from the forefoot region to the heel region is provided with an arc-shaped downward sloping transition structure, the transition structure being curved downward in accordance with the arc of the lower surface of the second ejection portion and being arranged in contact with the lower surface of the second ejection portion.

13. A shoe comprising a composite sole according to any one of claims 1 to 12.