CN116391938B - Composite soles and shoes - Google Patents
Composite soles and shoesInfo
- Publication number
- CN116391938B CN116391938B CN202310557548.5A CN202310557548A CN116391938B CN 116391938 B CN116391938 B CN 116391938B CN 202310557548 A CN202310557548 A CN 202310557548A CN 116391938 B CN116391938 B CN 116391938B
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- China
- Prior art keywords
- midfoot
- sole
- area
- forefoot
- composite sole
- Prior art date
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Classifications
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- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B13/00—Soles; Sole-and-heel integral units
- A43B13/14—Soles; Sole-and-heel integral units characterised by the constructive form
- A43B13/143—Soles; Sole-and-heel integral units characterised by the constructive form provided with wedged, concave or convex end portions, e.g. for improving roll-off of the foot
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- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B5/00—Footwear for sporting purposes
- A43B5/06—Running shoes; Track shoes
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- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B7/00—Footwear with health or hygienic arrangements
- A43B7/14—Footwear with health or hygienic arrangements with foot-supporting parts
- A43B7/1405—Footwear with health or hygienic arrangements with foot-supporting parts with pads or holes on one or more locations, or having an anatomical or curved form
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
- Y02P70/62—Manufacturing or production processes characterised by the final manufactured product related technologies for production or treatment of textile or flexible materials or products thereof, including footwear
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- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Epidemiology (AREA)
- Public Health (AREA)
- Physical Education & Sports Medicine (AREA)
- Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
Abstract
本发明公开了一种复合鞋底，包括上下重叠设置的上层中底、硬质支撑层和下层中底。硬质支撑层的前掌区域上翘，中足区域具有向上弧度，形成前足杠杆；下层中底的中足区域向下凸，形成第二个中足杠杆。前足杠杆和中足杠杆构成了复合鞋底的双杠杆结构，以在保持前掌区域助推的同时，还可提供着地方式发生转变后对中足区域的助推作用。复合鞋底底部两侧区域上翘，中足区域下凸，使得底部结构形成船型弧度，有利于中足或后足向前掌快速过渡，提升鞋整体前向滚动性。同时公开了一种鞋。本发明的复合鞋底及鞋可同时提升前掌推进力和中足推进力，以提升鞋子整体的运动性能。
This invention discloses a composite sole, comprising an upper midsole, a rigid support layer, and a lower midsole stacked on top of each other. The forefoot area of the rigid support layer curves upward, and the midfoot area has an upward arc, forming a forefoot lever; the midfoot area of the lower midsole convexes downward, forming a second midfoot lever. The forefoot and midfoot levers constitute a double-lever structure of the composite sole, which, while maintaining propulsion in the forefoot area, also provides propulsion to the midfoot area after a change in landing pattern. The two sides of the bottom of the composite sole curve upward, and the midfoot area convexes downward, creating a boat-shaped arc in the bottom structure, which facilitates a rapid transition from the midfoot or rearfoot to the forefoot, improving the overall forward rolling performance of the shoe. A shoe is also disclosed. The composite sole and shoe of this invention can simultaneously enhance forefoot and midfoot propulsion, thereby improving the overall athletic performance of the shoe.
Description
Technical Field
The invention relates to the field of shoes, in particular to a composite sole and a shoe comprising the same.
Background
In marathon competition, the player's landing patterns are changed, and they are mainly classified into a half-sole landing pattern, a midfoot landing pattern and a heel landing pattern. The heel strike ratio is generally lower than the half sole strike and midfoot strike ratio. Therefore, it is important to promote the half sole propulsive force and the midfoot propulsive force to whether the athlete can achieve good results in the competition.
At present, various large sports brands are more focused on the front sole propulsive performance in the research and development of racing running shoes, the front sole lever fulcrum and the ankle joint and metatarsophalangeal joint acting force arm are adjusted by embedding a hard supporting layer in the midsole, and the high-elastic midsole material is overlapped to exert the effect of improving the sports performance of the racing running shoes, so that the problem of how to improve the boosting effect of the middle section is not solved.
Disclosure of Invention
The invention aims to provide a composite sole and a shoe, which adopt a double lever principle, so that the composite sole not only can keep excellent boosting of a half sole, but also can provide boosting effect of a midfoot for the rear course of a sportsman in a mode of being changed. The specific technical scheme is as follows:
A composite sole comprises an upper midsole, a hard supporting layer and a lower midsole which are arranged in a stacked mode, wherein a forefoot region of the hard supporting layer is tilted upwards, a midfoot region is provided with an upward radian to form a forefoot lever, a midfoot region of the lower midsole is protruded downwards to form a midfoot lever, and the forefoot lever and the midfoot lever form a double-lever structure of the composite sole so as to provide boosting effect of the midfoot region after transformation in a mode while maintaining boosting of the forefoot region.
Further, the hard supporting layer comprises a first supporting part, a second supporting part and a third supporting part, wherein the first supporting part is positioned in a half sole area, the second supporting part is positioned in a midfoot area, the third supporting part is positioned in a heel area, the first supporting part is provided with an upturned radian to increase the kick-off rolling speed, and the second supporting part is provided with an upturned radian to promote the boosting force during the kick-off.
Further, the toe cap of the composite sole has a warp of 50-60mm, the first support portion has a warp of 35-40mm, and the second support portion has a height of 25-30mm from the highest point of the upward arc to the ground.
Further, the half sole area of the lower midsole has uniform density and is arranged in a fitting way with the radian of the first supporting part of the hard supporting layer, so that the dynamic deformation of the material is kept consistent in the pedaling and stretching process.
Further, the heel area of the lower midsole is provided with a cavity unit, and the third supporting part of the hard supporting layer is positioned at the upper part of the cavity unit, so that the damping and buffering effects of the sole are improved, and the weight of the sole is reduced.
Further, the hard supporting layer is provided with three reinforcing ribs which are communicated with the first supporting part and the second supporting part, and the length of the reinforcing rib at the middle position is larger than that of the reinforcing ribs at the two side positions so as to increase the rigidity of the hard supporting layer.
Further, the downward convex position of the midsole of the lower layer is 37% -45% of the sole along the heel-toe direction, and the downward convex height is 2-4 mm.
Further, the composite sole further comprises an outsole, wherein the outsole is positioned at the lower part of the midsole of the lower layer, and a downward convex structure is correspondingly formed on the outsole so as to be attached to the radian of the midsole of the lower layer.
Further, the toe region and heel region of the composite sole are raised to form a boat-shaped composite sole with the downward protruding structures on the lower midsole and outsole.
A shoe comprises the composite sole.
The composite sole of the invention has the hard supporting layer with the front sole area upturned to form the front foot lever and the middle foot area of the lower midsole with the middle foot lever protruding downwards. The forefoot lever and the midfoot lever form the double lever principle of the composite sole so as to provide the boosting effect of the rear midfoot area with the transformed modes while maintaining the excellent boosting effect of the forefoot area. The bottom of the composite sole forms a ship-shaped radian, which is beneficial to the rapid transition of the midfoot or the hindfoot and the half sole, and improves the forward rolling property.
Drawings
FIG. 1a is a pressure centerline routing position diagram of a midfoot foot versus a shoe.
FIG. 1b is a diagram of the pressure centerline routing of a forefoot-style foot to a shoe.
Fig. 2a is a schematic diagram of knee joint rotation when the half sole is grounded.
Fig. 2b is a schematic diagram of the rotation of the hip joint when the midfoot is grounded.
Fig. 3 is an exploded view of the composite shoe sole of the present invention.
Fig. 4 is a front view of the composite shoe sole of the present invention.
Fig. 5 is a perspective view of a rigid support layer of the composite shoe sole of the present invention.
Fig. 6 is a front view of a rigid support layer of the composite shoe sole of the present invention.
Fig. 7 is a schematic view of lever effect in the half sole region of the rigid support layer.
Fig. 8 is a schematic representation of the pushing effect of the midfoot region in the rigid support layer.
Fig. 9 is a perspective view of a lower midsole and outsole of the composite shoe sole of the present invention.
FIG. 10 is a top view of the lower midsole and outsole of the composite shoe sole of the present invention.
FIG. 11 is a schematic view of the structure of the lower midsole and outsole of the composite shoe sole of the present invention.
FIG. 12 is a schematic diagram showing the comparison of the structure of the test shoe sole and the conventional shoe sole according to the present invention.
Detailed Description
For a better understanding of the objects, structures and functions of the present invention, the composite shoe sole and the shoe according to the present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 3 to 4, the composite shoe sole of the present invention comprises an upper midsole 1, a rigid support layer 2, and a lower midsole 3, which are laminated. The forefoot region of the rigid support layer 2 is raised to form a forefoot lever and the midfoot region of the lower midsole 3 is raised downwardly to form a midfoot lever. The forefoot lever and the midfoot lever form the double lever principle of the composite sole so as to provide the boosting effect of the rear midfoot area with the transformed modes while maintaining the excellent boosting effect of the forefoot area.
As shown in fig. 5 to 6, the hard support layer 2 includes a first support portion 21, a second support portion 22, and a third support portion 23, the first support portion 21 being located in the forefoot region, the second support portion 22 being located in the midfoot region, and the third support portion 23 being located in the heel region. Compared with the existing hard support layer, the head tilting of the first support part 21 is increased on the basis of not changing the tilting position of the first support part 21, meanwhile, the upward radian of the second support part 22 is increased, and the first support part 21 and the second support part 22 are limited, so that the purpose is to increase the kick-off rolling speed and the boosting force during the kick-off and stretching.
Preferably, as shown in fig. 12, the tip of the shoe of the present invention has a warp ① of 50-60 mm, the first support portion 21 has a warp ② of 35-40 mm, and the second support portion 22 has a height ③ of 25-30 mm from the highest point of the upward arc to the ground.
Specifically, as shown in FIG. 7, the solid line is the lever effect of the normal hard support layer, and the dotted line is the lever effect of the synergistic hard support layer in the invention without changing the tilting position and increasing the head tilting of the hard support layer. Under the condition that the rear end power arm L and the gravity are unchanged, compared with the front end power arm B of the common hard support layer, the front end power arm A of the synergistic hard support layer is larger, and when the applied force F is the same, the pedaling and stretching moment of the synergistic hard support layer is increased, so that the pedaling and stretching athletic performance can be improved.
As shown in fig. 8, the solid line is the midfoot propulsion effect of the normal hard support layer, and the dotted line is the midfoot propulsion effect of the synergistic hard support layer in the present invention that promotes the radian of the midfoot hard support layer. In the figure, G is gravity, F is reaction resultant force acting on the shoe, F 'is forward acting force, F' is upward acting force, alpha is an included angle between the radian of the foot in the rigid support layer and the fulcrum, and beta is an included angle between the reaction resultant force and the forward acting force.
Formula (1) beta=90 ° -alpha;
equation (2) F' =fcos β;
from equations (1), (2), F' =fcos (90 ° - α) can be obtained.
The upward radian of the foot in the hard support layer is increased, so that the alpha of the synergistic hard support layer is increased relative to the common hard support layer, and according to a mathematical formula, F' is increased, so that the forward propelling force can be increased by increasing the upward radian of the foot in the hard support layer.
As shown in fig. 9 to 10, the lower midsole 3 is protruded downward in the midfoot region, and an outsole 4 is provided at the lower portion of the lower midsole 3, and the outsole 4 is formed with a protruded structure so as to be fitted with the lower midsole 3 in an arc shape. In addition, compared with the upwarp amplitude of the toe part of the existing sole, the toe part of the composite sole has larger upwarp amplitude. Therefore, the toe cap area and the heel area of the bottom of the composite sole are upturned, and the midfoot area is downwards convex, so that the radian of the bottom of the whole sole is ship-shaped, the rapid transition of midfoot or hindfoot to the half sole is facilitated, and an excellent rolling effect is realized.
Preferably, as shown in fig. 11, the lower midsole 3 has a lower protruding height of 2 to 4mm in the midfoot landing area, particularly has better movement performance when the lower protruding height is 2mm, and has better movement performance when the lower protruding position is 37 to 45% of the sole along the heel-toe direction, particularly 41%. The downward convex structure is similar to the fulcrum of the lever, and plays a role in quick transitional prying in the movement process, so that the supporting and pushing effects are provided for the movement process. When the athlete lands on the midfoot, the hip joint is used as a main rotation axis, the downward convex structure can enable the relative distance between the grounding point and the hip joint to be long, so that the hip joint rotation power arm is increased, the inertia moment is improved, meanwhile, the hip joint is saved to do work, the high knee lifting gait is maintained, and the middle-stage boosting effect is exerted.
Fig. 1a, 1b define the positions of the pressure centre traces in different modes of touchdown, and fig. 2a and 2b define the axes of rotation in different modes of touchdown. In which, fig. 1b and 2a show that when the front sole of the athlete lands, the position of the pressure center line of the foot to the shoe is about 60% of the sole along the heel-toe direction, and the main rotation axis of the leg of the athlete is the knee joint, and when the ankle knee joint at the far end is fatigued, as shown in fig. 1a and 2b, the land mode of the athlete is changed from the front sole to the middle foot land, the main rotation axis is adjusted from the knee joint to the hip joint, and the position of the pressure center line of the foot to the shoe is about 41% of the sole along the heel-toe direction. Therefore, the downward convex position of the lower midsole 3 in the midfoot landing area is preferably 37% -45% of the position of the sole along the heel-toe direction, particularly 41%, so that the fulcrum of the lever is consistent with the position of the pressure center line when the midfoot lands, and the optimal prying action and the middle-stage boosting effect are further exerted.
Furthermore, the half sole area of the lower midsole 3 has uniform density and is attached to the radian of the first supporting part 21 of the hard supporting layer 2 so as to keep the dynamic deformation of materials consistent in the pedaling and stretching process, the heel position of the lower midsole 3 is provided with a cavity unit 31, and the third supporting part of the hard supporting layer is positioned at the upper part of the cavity unit so as to improve the damping and buffering effects of the sole, reduce the weight of the sole and improve the movement performance of the sole.
The upper midsole 1 and the lower midsole 3 are made of one, two or more materials of nylon elastomer, 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 having a hardness of 40-45C and a 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 part to the half sole part of the human foot in the running process.
The hard supporting layer 2 is provided with three reinforcing ribs 24 which are communicated with the first supporting part 21 and the second supporting part 22 and extend along the direction from the toe to the heel so as to increase the rigidity from the midfoot to the forefoot, the length of the reinforcing rib at the middle position is longer than that of the reinforcing ribs at the two side positions, the pressure center is beneficial to forward rolling, the force transmission is faster, and the specific shape of the reinforcing ribs 24 is not limited. The hard supporting layer 2 can be selected from supporting plates made of other hard materials such as phenolic resin or thermoplastic resin, thermoplastic polyurethane, polycarbonate, polymethyl methacrylate, nylon elastomer, polyether ester elastomer, polyketone, polyether ether ketone, polyether ketone, polyether sulfone, polyphenylene sulfide and ABS, or composite materials formed by inorganic filler or long fiber or short fiber, wherein the shore D hardness is 50-95.
The outsole 4 is made of one, two or more of styrene-butadiene rubber, brominated butyl rubber, butadiene rubber, silicon rubber, ethylene propylene diene rubber, natural rubber, isoprene rubber, nitrile rubber, chloroprene rubber, nylon elastomer, polyurethane (thermoplastic polyurethane, 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 and high styrene rubber. The material has excellent slip resistance and fatigue wear resistance, can realize that the outsole 4 is manufactured with the thinnest thickness, can meet the actual running exercise requirement, effectively reduces the thickness and weight of the sole, realizes the functional appeal of light weight of shoes, and provides better wearing experience for wearers.
As shown in fig. 1, the upper midsole 1 includes a flange 11, and a protective space for accommodating a foot is formed between the main body of the upper midsole 1 and the flange 11.
The composite sole of the present invention as shown in fig. 12 is compared with the structure of a conventional carbon plate running shoe sole, wherein ① represents the degree of warp of the toe cap, ② represents the degree of warp of the first support portion, ③ represents the height from the highest point of upward arc of the midfoot of the second support portion to the ground, and ④ represents the downward convex height of the midfoot region of the lower midsole:
| sole structure | Sole of the invention | Sole of ordinary carbon plate running shoes |
| Toe cap tilting degree | 50~60mm | 40~50mm |
| Warp of the first supporting part | 35~40mm | 30~35mm |
| The height from the highest point of the upward radian of the foot in the second supporting part to the ground | 25~30mm | 20~25mm |
| Lower convex height of midsole midfoot region | Protruding downwards by 2mm | Horizontal level |
In combination with the table above, the composite sole of the invention has the following functional points relative to a common sole:
1. the area I increases the toe-cap tilting degree and the tilting degree of the first supporting part of the hard supporting layer so as to accelerate the rolling speed of pedaling off.
2. The midfoot in the zone II lifts the highest point of the radian of the second supporting part of the midfoot hard supporting layer to the height of the ground, and the thrust is promoted during pedaling and stretching.
3. In the low-waist arc area in the II area, the midfoot area of the sole of the test shoe protrudes downwards by 2mm, so that the hip joint rotation power arm is increased when the midfoot lands, and high-efficiency middle-section boosting force is provided.
4. The toe region and the heel region of the test shoe sole are tilted upward to form a boat-shaped composite sole together with the lower-layer midsole and the lower-layer convex structure on the outsole, so that the test shoe sole has excellent rolling effect.
Preferably, the upper midsole 1 and the lower midsole 3 of the composite sole are made of nylon elastomer materials to be matched with the hard supporting layer 2 to provide optimal force feedback performance, and the outsole 4 is made of casting polyurethane and has excellent wear resistance, wherein the hardness (Shore A) is 62, the density is 1.20g/cm < 3 >, the tensile strength is 13.4MPa, the elongation at break is 632%, the right-angle tear strength is 59.6N/mm, the Aldrich abrasion (1.61 km) is 0.03cm < 3 >, the DIN abrasion is 11mm < 3 >, the yellowing resistance is 4-grade, and the aging resistance is 4-grade.
In order to verify that the composite sole and the shoe have excellent sports performance, test shoes and common shoes are selected for experimental comparison.
Table 1 parameter comparison of test shoes and ordinary shoes
The materials used for testing the shoes are basically the same as those of the common shoes, the difference is that the radian of the hard supporting layer and the radian of the sole are the same, and the biomechanical parameter indexes of the right foot on the running machine are tested by a plurality of runners at the same speed, and are specifically as follows:
Table 2 comparative test results
Compared with the common shoes, the test shoes provided by the invention have the advantages that the rolling speed of the shoes and the ground is higher than that of the common shoes when the shoes are kicked off, the forward peak propulsion force is higher than that of the common shoes in the kicking stage, and the total work of ankle joints and hip joints in bending and stretching is smaller than that of the common shoes.
The composite sole and the shoe adopt the double lever principle, can provide midfoot boosting for the rear end of the transition of the elite runner in the mode while keeping the excellent boosting of the half sole, and the whole sole forms a ship-shaped radian and is carried with a hard supporting layer to provide high-efficiency rolling for the transition of the midfoot to the half sole.
The invention 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 invention, 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 invention 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 invention, the directional indications are merely used to explain the relative positional relationship, movement conditions, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indications are correspondingly changed.
Claims (9)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202310557548.5A CN116391938B (en) | 2023-05-17 | 2023-05-17 | Composite soles and shoes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310557548.5A CN116391938B (en) | 2023-05-17 | 2023-05-17 | Composite soles and shoes |
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| CN116391938A CN116391938A (en) | 2023-07-07 |
| CN116391938B true CN116391938B (en) | 2026-03-13 |
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| CN219813347U (en) * | 2023-05-17 | 2023-10-13 | 李宁（中国）体育用品有限公司 | Composite sole and shoes |
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2023
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN219813347U (en) * | 2023-05-17 | 2023-10-13 | 李宁（中国）体育用品有限公司 | Composite sole and shoes |
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| Publication number | Publication date |
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| CN116391938A (en) | 2023-07-07 |
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