Sole supporting plate and sole structure with same

Abstract

The invention relates to a shoe sole supporting piece which is used in a shoe sole structure and is sequentially divided into a heel area, a middle foot area, a half sole area and a toe area from back to front in the longitudinal direction, and the shoe sole supporting piece comprises a head located in the toe area; the bearing plate is located in the heel area; the side edge strips are provided with bottommost ends which are arc-shaped fulcrums; a protrusion connected to the pair of side strips in a force-transmitting manner to apply a force to the pair of side strips, said force tilting in the transverse direction; and a mechanically non-reciprocal first deformation unit located in the midfoot region and configured to redirect a force acting on the side strips and tilting in the transverse direction into a jacking force that lifts the carrier plate upward. As a result, additional boosting force or propulsive force can be provided to the runner independently of the seesaw effect to improve the athletic performance of the runner. The invention also relates to a sole structure with the sole support.

Description

Technical Field

[0001] The technology described in this invention relates to the field of sports shoes. More specifically, aspects of the invention relate to sole support plates that dynamically change the deformation ability and / or other characteristics of the sports shoe, including propulsion performance, under the weight of the wearer. Another aspect of the invention also relates to footwear articles (e.g., sports shoes) having such sole support plates. Background Art

[0002] As is known, conventional footwear articles, including sports shoes, generally include two main parts, namely, an upper and a sole structure. The upper is used to provide a covering for the wearer's foot, which securely receives, wraps and positions the foot relative to the sole structure. In addition, the upper may have a protective foot and provide satisfactory breathability, thereby cooling the foot and removing sweat. The sole structure is fixed to the lower surface of the upper and is generally positioned between the foot and any contacting environmental ground. In addition to attenuating ground reaction forces and absorbing energy, the sole structure can also provide forward force and control potentially harmful foot movements (such as over-rolling).

[0003] The sole structure typically includes multiple layers that may be generally referred to as an "insole," "midsole," and "outsole." The insole (which may also constitute the sockliner) is a thin member that is located within the upper and adjacent to the plantar surface of the foot to enhance the comfort of the athletic shoe (e.g., wicking away moisture and providing a soft, comfortable feel). The midsole, which is traditionally attached to the upper along the entire length of the upper, forms the middle layer of the sole structure and serves a variety of purposes including controlling foot motion and attenuating impact forces. The outsole forms the ground-contacting element of the footwear and is typically made of a durable, wear-resistant material that includes texturing or other features for improved traction.

[0004] For consumers of sports shoes, it would be beneficial if the sports shoes could provide a certain amount of boost during sports such as running, thereby reducing the wearer's energy consumption or delaying the runner's fatigue. To this end, major sports shoe manufacturers are committed to improving the design of the sole structure to achieve this. Currently, it has been proposed to embed a support plate with considerable hardness, such as carbon fiber, in the midsole of the shoe to improve the boost of the sports shoe.

[0005] In this application Figure 1 1 shows a sports shoe 10 with such a support plate design, wherein the sports shoe 10 includes, from top to bottom, a shoe upper 11 and a sole structure located below the shoe upper 11, wherein the sole structure includes an insole (not shown), a midsole 12 and a shoe outsole 13 that contacts the ground. A support plate 14, for example made of a carbon fiber material, is embedded in the midsole 12 in the forefoot area of ​​the sports shoe 10. Figure 1As can be observed in the left figure, the spoon-shaped black line in the midsole 12 is a support plate 14 with considerable hardness. The spoon shape of the support plate 14 allows a fulcrum to be generated at its bottom end to form a seesaw effect during movement, and the front end of the support plate 14 is designed to be upward in shape, thereby forming a rolling characteristic during movement.

[0006] Such a support plate design has been proven to be quite effective in promoting the running performance of the wearer. When the center of gravity of the wearer or runner moves forward, the forefoot of the wearer's foot will generate a force that moves forward and downward (as shown by the downward arrow on the right in the left figure). At this time, the rear end of the support plate 14 (roughly located at the heel) will generate an upward reaction force (as shown by the upward arrow on the left in the left figure), thereby helping the runner's heel to lift upward. Due to the upward curved surface design at the front of the sole, the runner's forefoot can roll forward naturally without bending, and the seesaw effect of the support plate 14 is continued, so that the heel obtains a rebound force that moves forward and upward (as shown by the upward arrow in the right figure), thereby obtaining more power feedback, improving long-distance running performance, and making the wearer's thighs and calves more labor-saving during exercise.

[0007] Major sports shoe manufacturers have proposed many designs for support plates that form a seesaw effect. For example, the Chinese invention patent applications CN114343288A, CN115281418A and CN114668226A previously filed by the applicant of this application all disclose designs of different types of support plates for forming a seesaw effect, and the contents disclosed in these previously published Chinese invention patent application documents are hereby included in the scope of discussion and disclosure herein. Although these disclosed support plates are effective in improving consumers' athletic performance, the International Association of Athletics Federations has formulated new competition rules that stipulate that the thickness of the midsole of running shoes for road running events shall not exceed 40 mm, which makes the boost performance provided by the previously designed support plates limited by the thickness of the midsole.

[0008] In summary, there is still a technical demand in the art that has not yet been effectively met, which is to improve the propulsion or boosting performance of sports shoes by optimizing the design of the sole support plate while meeting current rules and regulations. Summary of the invention

[0009] Therefore, the object of the present invention is to provide a sole support plate, by which the above-mentioned disadvantages of the prior art are at least partially overcome.

[0010] In order to accomplish the above-mentioned task, the present invention provides a sole support component, which is used in a sole structure and is divided into a heel area, a midfoot area, a forefoot area and a toe area in sequence from back to front along the longitudinal direction, wherein the sole support component comprises: a head located in the toe area and extending a certain width in the lateral direction; a supporting plate located in the heel area; and a pair of side strips used to bridge the head and the supporting plate and extending at least partially through the forefoot area and the midfoot area in the longitudinal direction to form a hollow space located between the head and the supporting plate. A portion, wherein the paired side strips have a bottom end in the form of an arc-shaped fulcrum in the forefoot area; a raised portion within the hollow portion in the forefoot area, wherein the raised portion is force-transmittingly connected to the paired side strips so as to convert the vertical downward force applied to the raised portion into a force that causes the paired side strips to tilt in a lateral direction; and a first mechanically non-reciprocal deformation unit of the paired side strips in the midfoot area, which is constructed to redirect the force acting on the side strips to tilt in a lateral direction into a lifting force that lifts the support plate upward.

[0011] Different from the prior art, the sole support according to the present invention can not only realize the seesaw effect to provide a boost to the runner, but also can convert the downward force acting on the protrusion into a lifting force that lifts the support plate upward through the mechanical linkage feedback between the protrusion, the side strip and the first deformation unit, thereby providing additional boost or propulsion to the runner independently of the seesaw effect to improve the runner's athletic performance.

[0012] As a preferred aspect of the present invention, the first deformation unit is designed as a thinning portion of the side strip twisted and extended along the longitudinal direction with a length of 3 mm to 12 mm, wherein the ratio of the thickness of the thinning portion to the thickness of the non-thinned side strip is in the range of 4:16 to 10:16, and wherein the thinning portion has an inclination angle in the range of 20 degrees to 70 degrees relative to the transverse direction. Therefore, without being limited by theory, such a first deformation unit can provide better deformation performance and satisfactory boosting effect.

[0013] As a preferred aspect of the present invention, it further includes a first horizontal bar located in the hollow portion in the midfoot region and used to bridge the paired side bars in the lateral direction, wherein the first horizontal bar also has a second mechanically non-reciprocal deformation unit arranged substantially in the center so as to deform inward when the first horizontal bar is subjected to the roll force from the side bars. Thus, without being limited by theory, it is geometrically helpful to promote the deformation of the first deformation unit, thereby improving the conversion efficiency of converting the downward force acting on the protrusion into the lifting force that causes the support plate to tilt upward.

[0014] As a preferred aspect of the present invention, it further includes a second horizontal bar located in the hollow portion in the forefoot region and used to bridge the paired side bars in the lateral direction, wherein the second horizontal bar also has a fourth deformation unit with mechanical non-reciprocity arranged substantially in the center so as to deform inward when the fourth horizontal bar is subjected to the rolling force from the side bars, wherein the second horizontal bar is preferably substantially parallel to the first horizontal bar. Thus,

[0015] As a preferred aspect of the present invention, the paired side strips further include a third deformation unit with mechanical non-reciprocity located between the first horizontal strip and the second horizontal strip, wherein the third deformation unit is designed as a thinning portion of the side strip twisted and extended along the longitudinal direction to a length of 3 mm to 12 mm, and the twisting direction of the third deformation unit is opposite to that of the first deformation unit, wherein the ratio of the thickness of the thinning portion of the third deformation unit to the thickness of the unthinned side strip is in the range of 4:16 to 10:16, and wherein the thinning portion of the third deformation unit has an inclination angle in the range of 20 to 70 degrees relative to the transverse direction. Thus, a greater or higher proportion of the force is allowed to be transmitted to the first deformation unit, thereby improving the conversion efficiency of converting the downward force acting on the protrusion into the lifting force that causes the support plate to tilt upward.

[0016] As a preferred aspect of the present invention, the paired side strips also include a fifth deformation unit with mechanical non-reciprocity located in the metatarsophalangeal joint area of ​​the forefoot area, which is designed to cause the tilting deformation of the third deformation unit of the side strip when the side strip is subjected to the action of tilting, wherein the fifth deformation unit is designed to be a thinned portion of the side strip extending along the longitudinal direction of the side strip with a length of 3 mm to 12 mm and the thinned portion basically does not twist relative to the side strip.

[0017] As a preferred aspect of the present invention, the forefoot region of the sole support has an upward tilt angle ranging between 20 and 40 degrees relative to a horizontal line passing through the bottom end of the arc-shaped fulcrum, and the midfoot region has an upward bending angle ranging between 10 and 30 degrees relative to a horizontal line passing through the bottom end of the arc-shaped fulcrum, wherein the forefoot region and the midfoot region are continuously transitioned. Thus, torsional movement during shoe landing can be allowed, and energy loss around the metatarsal joint can be avoided. At the same time, a reasonable compromise can be provided between the required stiffness and sufficient flexibility.

[0018] As a preferred aspect of the present invention, the raised portion is located in the metatarsophalangeal joint area of ​​the forefoot region and is raised upward by a height of 5 to 15 mm relative to the side strips in the vertical direction, wherein the raised portion is force-transmittingly connected to the paired side strips via a plurality of support rods.

[0019] As a preferred aspect of the present invention, the head is provided with a substantially centrally arranged groove, wherein the groove substantially extends longitudinally rearwardly over a length of 10 to 20 mm.

[0020] As another aspect of the present invention, a sole structure is also provided, which includes a midsole combined with each other, a sole support built into the midsole, and an outsole, wherein the sole structure has a front and rear heel difference in the range of 4 to 10 mm, wherein the sole support is the sole support described above. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 The working principle of a sole structure with a sole support plate known in the prior art is schematically shown, wherein how the sole support plate realizes a seesaw effect is introduced;

[0022] Figure 2 Shows a three-dimensional front view of a possible embodiment of the sole support plate according to the present invention;

[0023] Figure 3 A side view showing a possible embodiment of a sole support plate according to the present invention;

[0024] Figure 4 Shows a perspective front view of another possible embodiment of the sole support plate according to the present invention;

[0025] Figure 5 A side view showing a possible embodiment of a sole support plate according to the present invention;

[0026] Figure 6 A side view showing another possible embodiment of a sole support plate according to the present invention;

[0027] Figures 7 to 11 A front view showing more details of the sole support plate according to the invention.

[0028] Fig.12 A front view of a possible embodiment of a sole support plate according to the present invention is shown, wherein more details of the head are shown;

[0029] Fig.13 A schematic diagram showing the working mode of the sole support plate according to the present invention;

[0030] Fig.14 A front view of an embodiment of a sole support plate according to the present invention is shown, wherein more details of the deformation unit are shown.

[0031] Repeat use of reference characters in the present specification and drawings is intended to represent the same or analogous elements of the present invention.

[0032] Description of Reference Numerals

[0033] 10-sports shoes; 11-shoe upper; 12-shoe midsole; 13-shoe outsole; 14, 100-shoe sole support plate;

[0034] 101-head; 101A-groove; 102-side strip; 103-supporting plate; 103A-slit;

[0035] 104- raised part; 105- support rod; 106- first horizontal bar; 107- second horizontal bar;

[0036] 111-first deformation unit; 112-second deformation unit; 113-third deformation unit;

[0037] 114- fourth deformation unit; 115- fifth deformation unit;

[0038] 121 - toe area; 122 - forefoot area; 122A - metatarsophalangeal joint area; 122B - metatarsal area

[0039] 123- midfoot area; 124- heel area; a- tilt angle; b- bending angle; H- elevation height;

[0040] C-total length; W-width; X-longitudinal; Y-lateral; Z-vertical;

[0041] F1-downward force; F2-diagonal force; F3-lifting force; h1-height; h2-height. DETAILED DESCRIPTION

[0042] Those skilled in the art will appreciate that the following description of the detailed embodiments is merely illustrative of exemplary embodiments and is not intended to limit the broader aspects of the present disclosure.

[0043] Definition of terms

[0044] In this article, "mechanical non-reciprocity" refers to the asymmetric transfer of mechanical quantities between two points in space. Unlike general "mechanical reciprocity" materials, which have roughly the same deformation law or change response under the action of forces in two opposite directions, "mechanical non-reciprocity" materials or mechanical structures will have substantially different deformation laws or change responses when the same force is applied in two different directions. Just as an example, relevant technicians in this field have done some research on the design of mechanical non-reciprocity structures. For example, the paper "Corentin C, Dimitrios S, Andrea A. Static non-reciprocity in mechanical metamaterials. [J]. Nature, 2017, 542 (7642): 461-464." designed a fishbone non-reciprocity structure, which broke the reciprocity of nonlinear static systems and achieved asymmetric output of displacement. The paper "Xiang W, Zhihao L, Shuxu W, et al. Mechanical nonreciprocity in a uniform composite material. [J]. Science (New York, NY), 2023, 380 (6641): 192-198." designed a non-reciprocal hydrogel structure with an asymmetric response to shear force. The elastic modulus of this material is more than 60 times higher in one direction than in the opposite direction when sheared. The above content is included in the scope disclosed in this article. Due to the structural design of "mechanical nonreciprocity", it is possible to efficiently convert the force applied in one direction into the force in another direction, thereby achieving force redirection.

[0045] In this document, the terms "first deformation unit", "second deformation unit", "third deformation unit" to "fifth deformation unit" are only used to distinguish deformation units located at different positions, and this expression itself does not mean that these deformation units must have the same or different structures. An embodiment has a fourth deformation unit (as described below), but it does not necessarily mean that the second and / or third deformation unit must also be present. It is fully disclosed and includes the following embodiments, which, for example, have a first deformation unit and a fourth deformation unit, but, for example, do not have a second deformation unit.

[0046] In this article, the concept of the term "sports shoes" can be applied to a wide range of shoes suitable for various daily or sports occasions, including but not limited to: walking shoes, running shoes, casual shoes, tennis shoes, soccer shoes, American football shoes, basketball shoes, cross-training shoes, spikes, golf shoes, etc.

[0047] The term "longitudinal" refers to the direction in which a component extends a certain length. For example, the longitudinal direction of a sports shoe extends between the forefoot area and the heel area of ​​the sports shoe. The terms "forward" or "forward" are used to refer to the general direction from the heel area toward the forefoot area, and the terms "rearward" or "rearward" are used to refer to the opposite direction, that is, the direction from the forefoot area toward the heel area. In some cases, a component can be identified with a longitudinal axis and the forward and rearward longitudinal directions along this axis. The longitudinal direction or axis may also be referred to as the front-rear direction or axis.

[0048] The term "lateral" refers to the direction in which a component extends a certain width. For example, the lateral direction of a sports shoe extends between the lateral side of the shoe and the medial side of the shoe. The lateral direction or axis may also be referred to as the lateral direction or axis or the medial-lateral direction or axis.

[0049] The terms "vertical" or "upright" refer to a direction that is generally perpendicular to both the lateral direction and the longitudinal direction. For example, in the case where the sole structure is placed flat on a ground surface, the vertical direction may extend upward from the ground surface. It will be understood that each of these directional adjectives above may be applied to individual components of the sole structure. The terms "upward" or "upwardly" refer to a vertical direction pointing toward the top of a component. The terms "downward" or "downwardly" refer to a vertical direction opposite to the upward direction, pointing toward the bottom of a component, and may generally point toward the bottom of a sole structure of an athletic shoe.

[0050] At the same time, for consistency and convenience, directional adjectives may be used throughout this detailed description corresponding to the illustrated embodiments. Those skilled in the art will recognize that terms such as "above", "below", "upward", "downward", "top", "bottom", etc. may be used descriptively with respect to the accompanying drawings without limiting the scope of the invention as defined by the claims. The term "horizontal" refers to a plane extending in the longitudinal and lateral directions and perpendicular to the vertical direction.

[0051] Unless otherwise expressly or clearly indicated in light of the context, all numerical values ​​for parameters (e.g., amounts or conditions) in the present specification and claims should be understood as being modified in all cases by the term "about" or "approximately", regardless of whether "about" or "approximately" actually appears before the numerical value. "About" means that the numerical value described allows some slight imprecision (close to the exact value to a certain extent; approximately or reasonably close to the value; almost). If the imprecision provided by "about" or "approximately" is not understood in this ordinary sense in the art, then "about" or "approximately" as used herein at least indicates the variation that may be caused by the ordinary methods of measuring and using these parameters.

[0052] Sole support plate

[0053] The basic structure of the sole support plate of various embodiments of the present invention will be described below in conjunction with the accompanying drawings. The sole support plate 100 according to the present invention can preferably be designed as a plate-like structure made of carbon fiber reinforced composite material and is arranged in the midsole of the sole structure of sports shoes. In this article, one of the main functions of the sole support plate is to provide a higher thrust force than the prior art during exercise while wearing sports shoes, while having a fairly good stability to disperse the pressure and impact force during exercise, and further reduce the deformation and wear of the sole. In addition, it is believed that the elasticity and toughness of the sole support plate 100 of the present invention can also help runners better control the direction and strength of movement, thereby achieving better performance in sports competitions.

[0054] It is well known that the feet of consumers or runners wearing sports shoes can usually be roughly divided into at least four areas: toes, forefoot, midfoot and hindfoot. According to the functional anatomical analysis of the foot during exercise, the forefoot area contains two important structures of the foot: the transverse arch of the forefoot and the metatarsophalangeal joint, where the transverse arch of the forefoot is composed of the first to fifth metatarsal heads. In walking, running, jumping and changing direction, the transverse arch of the forefoot and the metatarsophalangeal joint are important load-bearing areas and force transmission areas of the human body. According to relevant research results, in the braking phase of the movement, the transverse arch of the forefoot and the metatarsophalangeal joint bear and absorb the impact of the reaction force of the ground; in the push-off phase of the movement, the force generated by the hip, knee and ankle can be transmitted from the hindfoot to the transverse arch area of ​​the forefoot, and released in this area, prompting the body to push off the ground.

[0055] exist Figures 2 to 3 FIG. 2 schematically shows various components of the sole support plate 100 according to the present invention. Figure 2-3 As shown, the sole support plate 100 can be divided into a heel area 124, a midfoot area 123, a forefoot area 122 and a toe area 121 along the longitudinal direction from back to front. Further, the forefoot area 122 of the sole support plate 100 can be further divided into a metatarsophalangeal joint area 122A and a metatarsal area 122B along the longitudinal direction.

[0056] More specifically, if Figure 2-3 As shown in FIG. 1 , the sole support plate 100 has a total length L in the longitudinal direction of, for example, about 20 to 30 cm and a maximum width W in the transverse direction of, for example, about 10 to 15 cm. Figure 2The mid-toe region 121 may be located in a certain length range extending backward from the frontmost direction of the sole support plate 100, wherein the length range accounts for 5-10% of the total length in the longitudinal direction (X direction). The forefoot region 122 of the sole support plate 100 located successively behind the toe region 121 extends backward to a length within a range of about 25-30% of the total length in the longitudinal direction (X direction), wherein the metatarsophalangeal joint region 122A accounts for about 40% of the length of the forefoot region 122 and the metatarsal region 122B accounts for about 60% of the length of the forefoot region 122.

[0057] like Figure 3 and 5 As shown in Figure 1 The seesaw effect described in the forefoot region 122 is that the sole support plate 100 has a bottom end at an arc-shaped fulcrum embedded in the midsole, so that the forefoot region 122 forms a certain tilt angle a with respect to the ground plane or the horizontal action surface. That is, the sole support plate 100 extends from the head 101 in a slightly arc-shaped manner to the bottom end in the forefoot region 122, wherein the angle between the extension line and the ground plane is the tilt angle a.

[0058] As a feasible approach, the sole support plate 100 may be pre-bent in its forefoot region 122, preferably aligned with a horizontal line (eg, Figure 5 In other words, in a static state without any bending or flexing force generated, the forefoot area 122 of the sole support plate 100 can be bent upward at an angle (which can be between 20°-40°). Preferably, the starting point for measuring the tilt angle α is located within the range of the metatarsophalangeal joint area 122A. It is believed that in this way, the bending stiffness of the sole support plate 100 can be improved. This is because for the sole support plate 100, the tilt angle α located in this area and range is physiologically and anatomically positioned to meet the optimal needs of long-distance runners. Torsional movement during shoe landing can be allowed, and energy loss around the metatarsal joints can be avoided.

[0059] Further, it has been found that it is advantageous to design the tilt angle a to be between 20° and 40°, and more preferably between 25° and 35°. This provides a reasonable compromise between the required stiffness (for the performance during the runner's push-off, especially when trying to bend the sole support plate 100 to a certain angle) and sufficient flexibility (to provide sufficient wearing comfort during the shoe landing). Push-off here refers to the action in which the runner needs to push his (or her) foot off the ground at each step when running; and landing refers to the action in which the runner lands on the ground with his (or her) foot at the end of each step.

[0060] Further Figure 2As shown, the heel region 124 extends, for example, from the rearmost direction of the sole support plate 100 to a certain length range, which here accounts for 30-40% of the total length in the longitudinal direction (X direction). The midfoot region 123 extends directly between the heel region 124 and the forefoot region 122, so that the length of the midfoot region 123 in the longitudinal direction constitutes the remaining part of the total length, in particular from 20% to 30% of the total length.

[0061] exist Figure 5 or Figure 6 As better shown in the figure, the forefoot area 122 bridges the toe area 121 and the midfoot area 123 which are respectively tilted upward in a continuous transition manner, so that the tilting angle a mentioned above is formed between the forefoot area 122 and the toe area 121, and a bending angle b is formed between the forefoot area 122 and the midfoot area 123, wherein the bending angle b can be the angle between the extension direction of the midfoot area 123 itself and the horizontal line extending through the bottom end of the sole support 100, wherein the angle can be between 10° and 30°, and more preferably 20° to 25° is advantageous.

[0062] Here, in Figure 5 The continuous transition from the tilting angle a to the bending angle b in the forefoot region 122 is relatively gentle, and Figure 6 The continuous transition from the tilt angle a to the bend angle b in the forefoot region 122 is relatively steep. Figure 5 The design of the curvature of the forefoot region 122 shown in FIG. 1 is more favorable for the overall force of the forefoot region, and Figure 6 The curvature design shown in FIG. 1 is more conducive to the deformation effect of the sole support 100 .

[0063] Without being bound by theoretical limitations, through computer simulation tests and actual comparative tests, it was found that within the range of the above-mentioned lift angle a and bending angle b, when the sole support plate 100 is placed on the midsole of the shoe in the sole structure and is deformed by the user pushing off the ground, it will apply an upward and forward elastic force to the user, and a larger force can be applied at the initial stage of deformation, and the force can be kept stable, helping the user to exert force in a more labor-saving and effective way, so that the user can achieve a faster speed.

[0064] like Figure 2As shown, the sole support plate 100 according to the present invention includes a head 101 located in the toe area 121, wherein the head 101 generally extends from the inside to the outside along the lateral direction through 70% to 80% of the entire width W of the sole support plate 100, so as to correspond to the toes or phalanges of the runner when the foot of the runner is supported by the sole support plate 100. The sole support plate 100 also includes a support plate 103 located in the heel area 124, wherein the support plate 103 is used to correspond to the heel of the runner when the foot of the runner is supported by the sole support plate 100, so as to feed back the assist force or propulsion force generated by the sole support plate 100 to the runner. Here, the support plate 103 generally extends from the inside to the outside along the lateral direction through 45% to 55% of the entire width W of the sole support plate 100. Preferably, as Figure 2 and 4 As shown, a slot 103A with a certain width is provided forward from the rearmost end of the support plate 103, and the slot 103A is generally arranged in the center of the support plate 103. It is believed that such a slot 103A has a certain promoting effect on adjusting the deformation of the support plate 103.

[0065] In order to bridge the head 101 located in the toe area 121 and the support plate 103 located in the heel area 124, the sole support plate 100 of the present invention has a pair of side strips 102 extending through the entire forefoot area 122 and most of the midfoot area 123 in the longitudinal direction (X direction), and located on the outer side and the inner side respectively with respect to the transverse direction. That is, different from the known single-plate carbon plate structure, the sole support plate 100 of the present invention is hollow or hollowed out in most of the entire forefoot area 122 and the midfoot area 123. The pair of side strips 102 are designed to be arc-shaped with undulating changes (such as Figure 3 As shown in FIG. 1 , the side strips 102 and the support plate 103 are provided with a tilting angle a and a bending angle b as described in detail above. Since the widths of the head 101 and the support plate 103 connected thereto are different in the lateral direction, the width of the paired side strips 102 in the forefoot region 122 is greater than the width in the midfoot region 123, so that the paired side strips 102 and the support plate 103 are generally in a Y shape.

[0066] Furthermore, in order to make the sole support plate 100 have an ideal rigidity to prevent distortion when subjected to force, the paired side strips 102 are preferably oriented in the forefoot region 122 such that the height of the side strips 102 in the vertical direction is significantly greater than the width in the lateral direction. Figure 3 As shown, the side strips extend in the vertical direction in the forefoot region 122. In order to connect with the substantially plate-shaped support plate 103, the side strips 102 have at least such an orientation in the midfoot region 123 that the vertical height of the side strips 102 is substantially equal to the lateral width. Figure 3 As shown, in the midfoot area 123 , the side strip 102 is twisted toward one side to a certain extent to reduce the height along the vertical direction until it connects with the plate-shaped supporting plate 103 .

[0067] In this embodiment, in order to make the sole support plate 100 have ideal physical properties, it can be made of carbon fiber material, because carbon fiber material has certain elasticity and sufficient rigidity, which can better meet the needs of runners. Of course, alternatively, the material of the sole support plate 100 can be selected from bamboo or wood. In a preferred embodiment, the sole support plate 100 can additionally include reinforcing fibers to increase rigidity and thus increase the energy available for pressure relief. It can be selected from, for example, glass fiber mixed with carbon fiber, bamboo fiber, hemp fiber, cellulose fiber, palm fiber and mixtures thereof.

[0068] As can be seen from the above, the sole support plate 100 can form a pair of undulating side strips 102 in the lower area of ​​the front part of the metatarsal joint, for example, Figure 5-6 The arc-shaped fulcrum shown in more detail in FIG. 1 (e.g., the bottom end in the above text). When the runner pushes the ground during the movement process, the arc-shaped fulcrum can be used as a fulcrum to achieve the seesaw effect during the movement process, thereby improving the leverage and rolling efficiency between the forefoot-mid / rearfoot during the pedaling process, and converting the downward force applied by the runner to the forefoot into an upward and forward assisting force or propulsion force applied to the heel of the runner at the support plate 103, thereby providing a propulsion assist function to save the runner's energy.

[0069] like Figure 2 As shown, in order to further improve the boosting effect and / or stability of the sole support plate 100, the sole support plate 100 according to the present invention is further provided with a bulge 104 in the hollow portion located in the forefoot region 122, which is upwardly raised from the paired side strips 102 in the vertical direction to a certain bulge height H, and is shown as an elliptical disk shape, wherein at least a large part of the bulge 104, preferably the entirety, is located in the metatarsophalangeal joint region 122A of the forefoot region 122 or near the transverse arch of the forefoot, and is force-transmittingly connected to the paired side strips 102 by means of a plurality of support rods 105, for example, four support rods. Specifically, when the bulge 104 is subjected to the downward force applied by the runner, it disperses or evenly distributes the force to the paired side strips 102 and even the supporting plate 103 connected thereto through the plurality of support rods 105, thereby improving the stability of the sole support plate 100. Specifically, with the help of the plurality of support rods 105 , the vertical downward force from the raised portion 104 can be converted into a force acting on the paired side strips 102 to cause them to tilt in the lateral direction.

[0070] As described above, the paired side strips 102 are twisted to one side in the midfoot region 123 to connect with the plate-shaped support plate 103. Figure 2 As shown, the twisted sections of the paired side strips 102 in the midfoot region 123 are each provided with a first deformation unit 111 with mechanical non-reciprocity. Here, the first deformation unit 111 is configured to redirect the forces acting on the side strips 102 that tilt in the lateral direction into a lifting force that lifts the support plate 103 upward. As a result, during the period when the runner steps on the ground, the sole support plate 100 of the present invention can not only realize the seesaw effect to provide a boost to the runner, but also can transform the downward force acting on the protrusion 104 into a lifting force that tilts the support plate 103 upward through the mechanical linkage feedback between the protrusion 104, the plurality of support rods 105, the side strips 102 and the first deformation unit 111, especially the deformation of the first deformation unit 111 with mechanical non-reciprocity, thereby providing the runner with additional boost or propulsion force independently of the seesaw effect to improve the runner's athletic performance. Preferably, the support plate 103 has a thickness of approximately 2 mm.

[0071] exist Figure 7-8 FIG. 1 shows a feasible implementation of the first deformation unit 111, wherein the first deformation unit 111 may be a weakened portion or a thinned portion extending the side strip 102 along the longitudinal direction (X direction) by a certain length L, wherein the weakened portion or the thinned portion is designed to have a thickness in the range of approximately 4:16 to 10:16 compared to the thickness (along the transverse direction) of the section of the side strip 102 that has not been thinned. It is feasible that the length L of the weakened portion or the thinned portion is in the range of 3 mm to 12 mm, such as Figure 8 As shown. Further, Fig.14 As shown, the weakened portion and the thinned portion used as the first deformation unit 111 have an acute inclination angle c relative to the transverse direction (Y direction), wherein the acute angle is in the range of 20 to 70 degrees, preferably in the range of 25 to 50 degrees, and most preferably is 45 degrees.

[0072] According to the results of computer simulation and physical deformation experiments conducted by the inventors, the length, thinning ratio and inclination angle of the weak portion or thinned portion of the first deformation unit 111 will have a certain influence on its mechanical non-reciprocity, that is, it will affect the efficiency or ratio of converting the downward force acting on the protrusion 104 into a lifting force that causes the support plate 103 to tilt upward.

[0073] In general, the longer the length of the weak portion or the thinned portion is, the greater or more powerful the first deformation unit 111 can allow the sole support plate 100 to provide a greater or more powerful boosting force or an upward lifting force acting on the support plate 103. At the same time, the thinner the weak portion or the thinned portion is designed to be, that is, the smaller the thinning ratio is (for example, 4:16), the greater or more powerful the first deformation unit 111 can provide a greater or more powerful boosting force or an upward lifting force acting on the support plate 103. Further, at the same time, the smaller the inclination angle between the weak portion or the thinned portion relative to the lateral direction is, for example, when the inclination angle is 25 degrees, the first deformation unit 111 can allow the sole support plate 100 to provide better deformation performance and a more satisfactory boosting effect.

[0074] As a preferred aspect of the present invention, a first horizontal bar 106 for bridging the paired side strips 102 in the lateral direction may be provided in the hollow portion within the midfoot region 123, wherein the thickness of the first horizontal bar 106 may be substantially the same as that of the side strips 102. Figure 2 In the embodiment, the first horizontal bar 106 is substantially perpendicular to the paired side bars 102 connected thereto, which is believed to help improve the integrity of the sole support plate 100. Here, since the first horizontal bar 106 is arranged adjacent to the first deformation unit 111, in order to promote the deformation of the first deformation unit 111, a second deformation unit 112 preferably having mechanical non-reciprocity can be provided in a substantially central section of the first horizontal bar 106, wherein the second deformation unit 112 is designed to be more prone to inward deformation when subjected to the roll force from the side bars 102, and such deformation is believed to geometrically help promote the deformation of the first deformation unit 111, thereby improving the conversion efficiency of converting the downward force acting on the protrusion 104 into the lifting force that causes the support plate 103 to tilt upward.

[0075] exist Fig. 9, more details of the second deformation unit 112 are shown in an enlarged view. Here, the second deformation unit 112 may be a weakened portion or a thinned portion extending a certain length of the first transverse bar 106 along the transverse direction (Y direction), wherein the cross section of the portion of the first transverse bar 106 that has not been thinned is marked as S1, and the portion of the weakened portion or the thinned portion that has been thinned and extended for a certain length is regarded as the second deformation unit 112, wherein the cross section of the second deformation unit 112 is marked as S2. Here, the inventors have found through experiments that the second deformation unit 112 implemented as a weakened portion or a thinned portion is designed to have a thickness or a cross-sectional area S2 that is approximately in the range of 4:16 to 10:16 compared to the thickness of the section of the first transverse bar 106 that has not been thinned or the cross-sectional area S1, wherein the most preferred ratio is approximately 5:16 to 8:16. Without being bound by theoretical limitations, through computer simulation tests and actual comparative tests, when the ratio of S1 to S2 is designed to be approximately 5:16, the auxiliary effect of the second deformation unit 112 on the deformation of the first deformation unit 111 is most significant, and when the ratio of S1 to S2 is designed to be approximately 8:16, the overall force effect of the sole support plate 100 is most satisfactory.

[0076] As a further improvement, in order to promote the deformation of the second deformation unit 112, as Figure 2 As shown, a support rod 105 is provided for bridging the ridge 104 and the first cross bar 106, so that the first cross bar 106 receives the force directly transmitted from the ridge 104 in addition to the force from the side bar 102, which makes it easier for the first cross bar 106 and its second deformation unit 112 to deform as required. It should be pointed out that the support rod 105 for bridging the ridge 104 and the first cross bar 106 is not essential. Figure 3 and 4 A possible embodiment without such a support rod 105 is shown in FIG.

[0077] Furthermore, a second horizontal bar 107 for bridging the paired side strips 102 in the lateral direction may be provided in the hollow portion within the forefoot region 122, wherein the second horizontal bar 107 is also substantially perpendicular to the paired side strips 102 connected thereto. Similarly, a fourth deformation unit 114, preferably having mechanical non-reciprocity, may be provided in a substantially central section of the second horizontal bar 107, wherein the fourth deformation unit 114 is designed to be more prone to inward deformation when subjected to the roll force from the side strip 102, and such deformation is believed to geometrically help promote the deformation of the first deformation unit 111, thereby providing a conversion efficiency of converting the downward force acting on the ridge 104 into a lifting force that causes the support plate 103 to tilt upward.

[0078] It should be noted that, although the first horizontal bar 106 and the second horizontal bar 107 are designed to be substantially perpendicular to the paired side bars 102 connected thereto, i.e., a vertical connection design is adopted, it is also possible to adopt an inclined connection mode in which the first horizontal bar 106 and the second horizontal bar 107 are deflected from the vertical position by a certain angle, and the certain angle is an angle in the range of about 8 to 15 degrees, preferably in the range of 10 to 12 degrees.

[0079] Further, the second deformation unit 112 and the fourth deformation unit 114 may have substantially the same design, which may be a weakened portion or a thinned portion that extends the first horizontal bar 106 and the second horizontal bar 107 along the transverse direction (Y direction) by a certain length, wherein the weakened portion or the thinned portion is designed to have a thickness in the range of approximately 4:16 to 10:16 compared to the thickness of the sections of the first and second horizontal bars that are not thinned, and preferably the thickness ratio is selected to be approximately 6:16. It is feasible that the length of the weakened portion or the thinned portion is in the range of 3 mm to 12 mm.

[0080] Further preferably, a third deformation unit 113 which preferably has mechanical non-reciprocity is provided in the section of the side strip 102 between the first horizontal strip 106 and the second horizontal strip 107, wherein the third deformation unit 113 is designed to geometrically help cause the tilting deformation of the side strip 102 when subjected to the force from the support rod 105, thereby transmitting a larger or higher proportion of the force to the first deformation unit 111, thereby providing a conversion efficiency for converting the downward force acting on the protrusion 104 into a lifting force causing the support plate 103 to tilt upward.

[0081] exist Figure 7 and 8 As best shown in , the inclination direction of the third deformation unit 113 and the inclination direction of the first deformation unit 111 can be opposite, so that the side strip 102 presents a twisted design between the two. The structure of the third deformation unit 113 is substantially the same as that of the first deformation unit 111, and is also designed to extend the side strip 102 along the longitudinal direction (X direction) by a certain length of a weakened portion or a thinned portion, wherein the weakened portion or the thinned portion is designed to have a thickness that is approximately in the range of 4:16 to 10:16 compared to the thickness (along the transverse direction) of the section of the side strip 102 that has not been thinned. It is feasible that the length of the weakened portion or the thinned portion is in the range of 3 mm to 12 mm, and preferably the length of the weakened portion or the thinned portion of the third deformation unit 113 is selected to be approximately 6 mm, such as Figure 8 As shown. Further, Fig.14As shown, the weakened portion and the thinned portion serving as the third deformation unit have an acute inclination angle c relative to the transverse direction (Y direction), wherein the acute angle is in the range of 20 to 70 degrees, preferably in the range of 25 to 45 degrees, and most preferably is an angle of about 30 degrees.

[0082] As a further preferred aspect of the present application, the paired side strips 102 may also be provided with a fifth deformation unit 115 which preferably has mechanical non-reciprocity in the metatarsophalangeal joint area 122A, wherein the fifth deformation unit 115 is designed to geometrically help cause the third deformation unit 113 (and thus the first deformation unit 111) of the side strip 102 to tilt and deform when the area of ​​the side strip 102 where it is located is subjected to the force from the support rod 105, thereby transmitting a larger or higher proportion of the force to the first deformation unit 111, thereby providing a conversion efficiency for converting the downward force acting on the protrusion 104 into a lifting force that causes the support plate 103 to tilt upward.

[0083] The structure of the fifth deformation unit 115 is Figure 4 As shown most clearly in the figure, the fifth deformation unit 115 is also designed to extend the side strip 102 along the longitudinal direction (X direction) by a certain length of a weakened portion or a thinned portion, wherein the weakened portion or the thinned portion is designed to have a thickness in the range of approximately 4:16 to 10:16 compared to the thickness (along the transverse direction) of the section of the side strip 102 that has not been thinned. It is feasible that the length of the weakened portion or the thinned portion is in the range of 3 mm to 12 mm. Unlike the first deformation unit 111 and the third deformation unit 113, the weakened portion and the thinned portion used as the fifth deformation unit 115 are generally at right angles to the transverse direction (Y direction), that is, the fifth deformation unit 115 is basically not twisted or deflected relative to the side strip 102, and is most preferably at a right angle of 90 degrees to the transverse direction (see Appendix 114). Fig.14 ).

[0084] As a further preferred aspect of this application, Fig.12 As shown, a groove 101A arranged substantially in the center may be provided in the region of the head 101 located in the toe region 121, wherein the groove 101A extends substantially in the longitudinal direction from the front end of the head 101 to a certain length backward, and the length of the groove 101A may be, for example, in the range of 10 to 20 mm, and preferably the length of the groove 101A is about 15 mm. Without being limited by theory, computer simulation tests and actual comparative tests have found that such a groove 101A has a certain promoting effect on improving the deformation effect of the sole support plate 100. Preferably, in the region of the head 101, the sole support plate 100 has a thickness of about 1.5 mm.

[0085] like Fig.10 As shown, the height H of the raised portion 104 also has a certain influence on the deformation effect of the sole support 100 and the propulsion or boosting effect it brings. Without being limited by theory, it is found through computer simulation test and actual comparative test that the height H of the raised portion 104 can be, for example, in the range of 5 to 15 mm, wherein the smaller the value of the height H (i.e., the lower the height of the raised portion 104), the more satisfactory the deformation performance of the sole support 100 under the same external force condition, and from the perspective of converting the single-point force applied to the raised portion 104 into the stress equivalently applied to the sole support 100, the value of the height H is optimal when it is about 10 mm. In short, from the perspective of the overall effect, it is a suitable choice to select the height H of the raised portion 104 in the range of 5 to 10 mm. Most preferably, the inventors have found that it is beneficial to select the spring area of ​​the protrusion 104 to be 700 to 900 square millimeters and the protrusion height H to be approximately 10 millimeters.

[0086] The following uses Fig.13 To exemplarily describe the working methods of various embodiments and variations of the present invention:

[0087] Taking the sole support 100 used in jogging shoes or professional running shoes as an example, if the ground level is used as a reference, the sole support 100 located in the sole structure of the running shoe will be in a "spoon shape" with the front lower and the back higher. Fig.13 As shown. When a runner wears such sports shoes and touches the ground with the forefoot of his foot to achieve support during running, the forefoot of the foot will exert a forward and downward force at least in the toe area 121 and the forefoot area 122. Since the sole support 100 is designed as a single piece with a certain arc drop shape from front to back, a bend that can be used as a lever fulcrum is formed in the forefoot area 122. As a result, the rear portion 101 of the sole support plate 100 is as shown. Fig.13 As shown, the support plate 103 near the rear end (approximately located at the heel) sinks as shown by the arrow, so that the support plate 103 near the rear end (approximately located at the heel) rises to a certain height h1 (approximately about 20 to 40 mm in height), thereby helping the runner's heel to lift up. At the same time, the design of the upward curved surface at the front allows the runner's forefoot to roll forward naturally without bending and continue the seesaw effect of the support plate 100, so that the heel obtains a forward and oblique rebound force, thereby obtaining more power feedback. The above boosting or propulsion auxiliary effects are well known to those skilled in the art.

[0088] In addition, when the runner pushes off the ground immediately afterwards, the runner's forefoot will apply a downward force F1 to at least a large part, preferably the entirety, of the metatarsophalangeal joint area 122A or the ridge 104 near the transverse arch of the forefoot in the forefoot area 122. Subsequently, the downward force F1 will be transmitted to the paired side strips 102 connected thereto by means of the plurality of support rods 105. These forces will be sequentially transmitted to the fifth deformation unit 115 (if any), the third deformation unit 113 (if any), and the second horizontal strip 106 (if any) and the first horizontal strip 107 (if any) for connecting the paired side strips 102. Due to the non-reciprocity of these deformation units and their geometric and linkage mechanisms, the downward force F1 from the runner is finally redirected into an oblique inward and upward force F2 acting on the first deformation unit 111, and the upward force F2 is redirected into a lifting force F3 that causes the support plate 103 connected to the first deformation unit 111 to continue to rise up to a height h2 (approximately 20 to 40 mm) on the basis of the tilted height h1. As a result, such a design can provide additional boost or propulsion to the runner independently of the seesaw effect to improve the runner's athletic performance.

[0089] The inventors have found through computer simulation and physical experiments that in the above-mentioned first to fifth deformation unit designs, when the length of the weak portion or thinned portion is selected to be about 6 mm, the inclination angle c is designed to be an acute angle of 25 to 40 degrees, and the thinning ratio is designed to be 5:16, and the height H of the ridge 104 is designed to be 10 mm, the above-mentioned additional lifting height h2 can reach about 40 mm. In the case of such a lifting height h2, it can be converted to provide a propulsion force of about 6 to 8 Newtons to the runner.

[0090] Sole construction

[0091] In the present invention, the sole structure is used to be fixedly combined with the upper to form a footwear article. The sole structure is composed of at least three parts, namely the midsole, the sole support and the outsole, and the three components can be bonded together by a certain adhesive. In the present invention, the shape of the entire sole structure is the shape of the sole of a conventional running shoe with a low front and a high back, and the front and rear heel difference is generally between 4 and 10 mm.

[0092] In the sole structure of the present invention, the main function of the midsole is to provide shock absorption protection and rebound of the sole. The midsole can be a whole sheet component, the upper surface of which is close to the sole of the foot, and the contour shape can cover the projection shape of the sole of the foot, while the lower surface of the midsole is close to the ground. The midsole can also be multi-layered, usually divided into upper and lower layers, which are bonded together; the lower layer can be a whole piece, or it can be two independent parts of the forefoot and the heel. In addition, the present application has no special restrictions on the structural design of the side of the midsole.

[0093] The main preparation material of the midsole can be ethylene vinyl acetate copolymer (EVA), polyurethane (PU), thermoplastic polyurethane (TPU) or thermoplastic polyethylene (TPE) and other foam materials; if the midsole is composed of multiple layers, the component materials of the two layers are not necessarily the same material, and any one or more of the above materials can be used. For example, the hardness of the midsole is 35-50 degrees (Shore C); the material density is less than 0.2g / cm3. Preferably, the midsole in the sole structure of the present invention is composed of an upper and lower layer of components and a sole support member located between the two layers. If the midsole is a whole sheet-like component, the sole support members described above can be independently embedded in its upper and lower surfaces.

[0094] In addition, the sole structure also includes an outsole that is compounded on the midsole near the ground; the outsole mainly plays a wear-resistant role and improves the durability of the shoe. The outsole is generally made of wear-resistant materials, which can be rubber or other wear-resistant materials. The outsole can be a whole piece, or it can be divided into two area blocks, the forefoot area block and the heel area block, and each block can be composed of multiple blocks. The hardness of the outsole can be 60-70 degrees (Shore A); anti-slip performance: dry friction coefficient ≥ 0.7; wet friction coefficient ≥ 0.5.

[0095] In this sole structure preferably composed of a midsole, a sole support and an outsole, the forefoot at the front is slightly higher than that of traditional running shoes, the entire sole shape fits the shape of the sole support, and the forefoot forms an arc, which is conducive to the transition to push off forward. The thickness of the inner edge of the sole of the entire combination does not exceed 40 mm.

[0096] Sports shoes

[0097] On this basis, the present invention also provides a sports shoe, including the running shoe sole described above and an upper fixedly combined therewith. Such sports shoes may also be called racing or slow running shoes, etc. The present invention is based on the biomechanical characteristics of the human body when running, and designs a midsole built-in sole support with a non-reciprocal deformation unit, so as to maximize the running economy of the running shoe while ensuring the shock absorption of the running shoe. On the above-mentioned running shoe sole structure that can improve running efficiency, the sports shoe can use conventional uppers and other components without special restrictions.

[0098] Here, the embodiments of the present invention are exemplified and described, but those skilled in the art should know that the above and other various changes, omissions, and additions can be made without departing from the spirit and scope of the present invention. It should not be limited to the specific embodiments described herein, and it includes all possible embodiments that can be embodied within the scope and equivalent scope of the features recorded in the attached claims.

[0099] The dimensions and values ​​disclosed herein should not be understood as being strictly limited to the exact numerical values ​​recited. Instead, unless otherwise indicated, each such dimension is intended to represent the recited value and a functionally equivalent range around that value. For example, a dimension disclosed as "40 mm" is intended to represent "about 40 mm".

[0100] All documents cited in the "Detailed Description" are, in relevant part, incorporated herein by reference; the reference to any document shall not be construed as an admission that it is prior art with respect to the present invention. In the event that any meaning or definition of a term in this written document conflicts with any meaning or definition of the term in a document incorporated by reference, the meaning or definition assigned to the term in this written document shall prevail.

[0101] Although specific embodiments of the present invention have been shown and described, it will be apparent to those skilled in the art that various other changes and modifications may be made without departing from the spirit and scope of the present invention. Therefore, it is intended to cover all such changes and modifications within the scope of the present invention in the appended claims.

[0102] When introducing an element of the present invention or its preferred embodiment(s), the articles "a", "an", "the" and "said" are intended to indicate the presence of at least one element. The terms "comprising", "including" and "having" are intended to be inclusive and mean that in addition to the listed elements, additional elements may be present. Many modifications and variations may be made to the present invention without departing from the spirit and scope of the present invention. Therefore, the above-described embodiments should not be used to limit the scope of the present invention.

Claims

1. A sole support member, which is used in a sole structure and can be divided into a heel area, a midfoot area, a forefoot area and a toe area in sequence from back to front along the longitudinal direction, wherein: The sole support comprises: a head located in the toe region and extending in a lateral direction; Support plate located in the heel area; A pair of side strips for bridging the head and the support plate and extending at least partially through the forefoot region and the midfoot region in the longitudinal direction to form a hollow portion between the head and the support plate, wherein the pair of side strips has a bottommost end in the forefoot region that is an arc-shaped fulcrum; a raised portion in the hollow portion in the forefoot region, wherein the raised portion is force-transmittingly connected to the pair of side strips to convert a vertical downward force applied to the raised portion into a force that causes the pair of side strips to tilt in a lateral direction; and The first mechanically non-reciprocal deformation units of the paired side strips located in the midfoot area are configured to redirect the lateral tilting force acting on the side strips into a lifting force that lifts the support plate upward.

2. The sole support member according to claim 1, characterized in that: The first deformation unit is designed as a thinned portion of the side strip that is twisted and extended along the longitudinal direction to a length of 3 mm to 12 mm, wherein the ratio of the thickness of the thinned portion to the thickness of the unthinned side strip is in the range of 4:16 to 10:16, and wherein the thinned portion has an inclination angle in the range of 20 degrees to 70 degrees relative to the transverse direction.

3. The sole support member according to claim 1 or 2, wherein It also includes a first horizontal bar located in a hollow portion in the midfoot area and used to bridge the paired side bars in a lateral direction, wherein the first horizontal bar also has a second mechanically non-reciprocal deformation unit arranged substantially in the center so as to deform inward when the first horizontal bar is subjected to a lateral tilting force from the side bars.

4. The sole support member according to claim 3, wherein It also includes a second horizontal bar located in a hollow portion in the forefoot area and used to bridge the paired side bars in a lateral direction, wherein the second horizontal bar also has a fourth deformation unit with mechanical non-reciprocity arranged generally in the center so as to deform inward when the fourth horizontal bar is subjected to a rolling force from the side bars, wherein the second horizontal bar is preferably generally parallel to the first horizontal bar.

5. The sole support member according to claim 4, characterized in that: The paired side strips further include a third deformation unit with mechanical non-reciprocity located between the first horizontal strip and the second horizontal strip, wherein the third deformation unit is designed to be a thinned portion of the side strip twisted and extended along the longitudinal direction to a length of 3 mm to 12 mm, and the twisting direction of the third deformation unit is opposite to that of the first deformation unit, wherein the ratio of the thickness of the thinned portion of the third deformation unit to the thickness of the unthinned side strip is in the range of 4:16 to 10:16, and wherein the thinned portion of the third deformation unit has an inclination angle in the range of 20 degrees to 70 degrees relative to the transverse direction.

6. The sole support member according to claim 5, characterized in that the pair The side strip also includes a fifth deformation unit with mechanical non-reciprocity located in the metatarsophalangeal joint area of ​​the forefoot area, which is designed to cause the tilt deformation of the third deformation unit of the side strip when the side strip is subjected to the effect of tilting, wherein the fifth deformation unit is designed to be a thinned portion of the side strip extending along the longitudinal direction of the side strip with a length of 3 mm to 12 mm and the thinned portion basically does not twist relative to the side strip.

7. The sole support member according to claim 1 or 2, characterized in that: The forefoot area of ​​the sole support has an upward tilt angle in the range of 20 to 40 degrees relative to a horizontal line passing through the lowest end of the curved fulcrum, and the midfoot area has an upward bending angle in the range of 10 to 30 degrees relative to a horizontal line passing through the lowest end of the curved fulcrum, wherein the forefoot area and the midfoot area are continuously transitioned.

8. The sole support member according to claim 1 or 2, characterized in that: The raised portion is located in the metatarsophalangeal joint region of the forefoot region and is raised upward by a height of 5 to 15 mm relative to the side strips in the vertical direction, wherein the raised portion is connected to the paired side strips in a force-transmitting manner via a plurality of support rods.

9. The sole support member according to claim 1 or 2, characterized in that: The head is provided with a substantially centrally arranged groove, wherein the groove substantially extends longitudinally rearwardly over a length of 10 to 20 mm.

10. A sole structure, comprising a midsole, a sole support built into the midsole, and an outsole, which are combined with each other, wherein the sole structure has a front-to-back heel difference in the range of 4 to 10 mm, and is characterized in that: The sole support is a sole support according to any one of claims 1 to 9.

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