JP3312340B2 - Shoes having a sole formed according to the shape of the foot - Google Patents

Abstract

A construction for a shoe (20), particularly an athletic shoe such as a running shoe, includes a sole (28) provided with at least one bulge having concavely rounded inner and outer surfaces (30, 31). The bulge may be located on a side of the shoe sole (28) at a location which substantially corresponds to the location of one of the essential structural support and propulsion elements of an intended wearer's foot when inside the shoe. The thickness of the bulge decreases gradually in at least one of an anterior or posterior direction to a lesser thickness, as viewed in a horizontal plane when the shoe sole (28) is in an upright, unloaded condition.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to shoes such as commuting shoes, athletic shoes, and particularly running shoes, which have soles formed in accordance with the shape of the foot. The present invention more particularly relates to a novel sole with contoured soles for running shoes that improves the inherent stability and efficient movement of shoes on shoes during intense exercise. Regarding design.
The invention more particularly relates to the fact that the sole conforms to the natural shape of the foot, in particular the side of the foot, and that
See) constant thickness in cross-section, thereby allowing the foot to interact naturally with the ground as if the foot were barefoot, while also protecting and cushioning the foot Related to running shoes.

As an introduction, barefoot populations generally have a very low incidence of injuries when their feet are "overworked" by running, despite very high levels of barefoot activity. In contrast, in the population wearing shoes, such injuries occur frequently, even when activity levels are significantly lower than in "abuse" conditions. Therefore, reducing or eliminating such injuries and improving cushioning and protection for the feet are issues that need to be continually solved for a population wearing shoes. Various designs have been made for running shoes intended to provide stability, but these designs have constrained the natural and efficient movement of the foot and ankle. However, such designs, which are capable of accommodating free flexing movements, by contrast, lack control or stability. Existing prevailing shoe designs include a downwardly and outwardly projecting sole with a ground engaging surface that is wider than the heel engaging surface. However, in extreme conditions, such shoes are immediately supported only by the sharp lower edge of the sole when the toes are turned inward, and at the peak of running, the lower edge has about three times the total weight on the lower edge. It is unstable because the power of is concentrated. Under these conditions, the foot and ankle become unstable due to unnatural stress center distances and force moments, and in extreme cases, some rotation about the pivot point at the edge of the sole. Beyond the point, he strongly sprains the ankle. In contrast, a foot without shoes, i.e. a bare foot, is always in a stable equilibrium without producing a comparable stress center distance or moment of force,
And in the pronation movement of the maximum range of about 20 °,
The support base of the heel of the bare foot expands substantially as the ridge of the calcaneus of the foot contacts the ground. This is in contrast to conventionally employed soles that maintain a sharp, unstable edge.

[0003] Existing running shoes interfere with natural foot and ankle biomechanics, impairing natural stability and efficient natural movement. These running shoes do this by changing the natural position of the foot relative to the ground while supporting weight during running or walking. Naturally exposed feet are in direct contact with the ground, so that the relative distance of the feet from the ground is clearly always zero. The distance between the foot and the ground is always kept at zero, even when the foot leans naturally from side to side, moderately during running or extreme when it trips. In contrast, existing shoes maintain a certain distance from the ground, which corresponds to the thickness of the sole, only when they are perfectly snug on the ground. As soon as the shoe is tilted, the distance between the foot and the ground begins to change unnaturally as the sole pivots around the outer edge of the corner.
In the case of conventional athletic shoes, the distance between the shoe and the ground increases most typically because of the overhanging sides and then decreases. Many commuter shoes with relatively wide heels follow this pattern, but only those with narrow heels are reduced. All existing shoes are 90 °
Tilting continues to reduce this distance throughout the course to zero, resulting in sprains and fractures of the ankle. However, with the modified sole design,
Even when the shoe is tilted sideways, except for cushioning and protecting the foot, the distance between the foot and the ground is virtually as if there were no sole. Maintaining the neutral state avoids such unnatural interference. This modified shoe, unlike existing shoes, moves with the natural lateral pronation and supination of the foot on the ground. For the problem of using the sole to naturally maintain a constant distance during this lateral movement, the question is whether the horizontal lower surface of the sole surface changes to have a natural contour, or the upper surface There are two possible geometric solutions, depending on whether the plane of the lower surface changes. In a two-sided solution, i.e., a foot-shaped design described below in FIGS. 1-28, both the top and bottom surfaces of the sole change to match the natural contours of the human foot. . This two-plane solution is the most basic concept and is naturally the most effective. This method is the only pure geometric solution to the mathematical problem of maintaining a constant distance between the foot and the ground, and the circle is the only shape for the wheels and the perfect circle Is the most optimal in the same sense that is the most optimal. Also, on the other hand, this method is least similar to the existing designs of the two viable solutions and requires computer-aided design and injection molding manufacturing techniques. A more conventional single plane solution, ie, FIG.
In the design of the side of a shoe having a quadrant profile described with respect to FIGS. 9-37, the profile of the side is formed by solely a change in the bottom surface. The upper, or upper, plane of the sole, as in most existing shoes, remains constant and flat in the left-right longitudinal plane section, while the bottom plane of the sole is natural on the sides. It changes to a contour that maintains the biomechanical state of the foot and ankle. Although this single-sided quadrant profiled side design is less optimal than the two-sided solution, it is still the only optimal single-plane solution to the problem of avoiding the disruption of human natural biomechanics. is there. This single-sided solution is closest to the design of existing soles and is therefore the easiest and cheapest way to manufacture shoes with existing equipment. This single side quadrant profile side design is less biomechanically effective than the two-sided solution but is more conventional in appearance, so dress and commute shoes and It is suitable for shoes for light exercise such as casual walking.

Accordingly, it is a general object of the present invention to provide a new shoe design that resembles bare feet. By investigating the most extreme range of motion of the ankle up to near the condition causing the ankle sprain, abnormal movements that result in ankle sprains due to pronation motion tilting the foot outward or rotating outwards can be identified. Was found to simulate accurately when the foot is at rest. According to this observation, the extreme range of stability of feet wearing conventional shoes is clearly inferior to bare feet,
And it is understood that the shoe itself creates a general instability that would not otherwise be present. More importantly,
Normal running exercise of bare feet, including approximately 7 ° pronation and 7 ° supination, does not occur for feet in shoes where 30 ° pronation and supination are common. The normal movement of such bare feet cannot be obtained geometrically because the heel of a normal running shoe is about 60% larger than the width of a human heel. As a result, the heel of the shoe and the human heel cannot naturally pivot together, but rather the human heel must pivot within the shoe, but the pivot is the lunar core of the shoe heel. Laces by the laces on the movement control device and the upper part of the shoe, as well as by the various types of anatomical support members inside the shoe. Accordingly, the overall object of the present invention is based on the inconsistencies inherent in current shoe designs, which can achieve the goals of incompatible and incompatible stability and efficient natural exercise. Not to provide an improved shoe design.
It is another general object of the present invention to provide a new shoe profile that resembles the natural movement of bare feet during running, avoiding the inconsistencies inherent in current shoe designs.

[0005] It is another object of the present invention to provide a running shoe that solves the problems of the prior art. Another object of the present invention is that the area outside the flat portion of the sole includes all of the foot support structure, but does not extend beyond the outer edge of the flat portion of the sole, and It is an object of the present invention to provide a shoe in which the profile of the horizontal, that is, horizontal, plane at the top of the flat portion of the flat portion matches the weight supporting portion of the sole as much as possible. It is another object of the present invention to provide a shoe that includes a side having a contour such as the natural shape of the side or edge of a human foot, and that has a sole conforming to the side. It is in. Another object of the present invention is to provide a sole formed to conform to the shape of the foot, including a sole thickness that is exactly constant in a lateral longitudinal plane cross-section, and therefore one of the soles It is to provide a novel shoe structure that is biomechanically neutral, even when tilted to the side or forward or backward. Another object of the present invention is to provide a contour that is sufficiently similar to the natural shape of a non-weight bearing human foot, and conforms to the natural shape of said foot to support the weight when supporting the weight. Another object of the present invention is to provide a shoe having a sole that is deformed by flattening. It is a further object of the present invention that the heel lift member, i.e., the wedge-shaped member, increases the thickness of the sole in the longitudinal longitudinal plane, or the toe taper decreases with said sole thickness. A new stable shoe design, whereby the sides of the sole that naturally fits on both sides of the foot also increases and decreases by exactly the same amount, and the sole thickness in the lateral longitudinal section is always constant To provide. Another object of the present invention is that the sole of the shoe is simplified to the essential structural support and propulsion elements to provide flexibility and increase the density of the sole to compensate for the increased load SUMMARY OF THE INVENTION It is an object of the present invention to provide a shoe having a sole having a contoured design adapted to the shape of a foot as described above. Another object of the present invention is to provide a plurality of freely articulated essentials which are free to move independently of each other to conform to the sole of the foot and to follow the motion of the freely articulated bone structure of the foot. The sole object of the present invention is to provide a sole design which includes various structural support elements in the sole.

It is yet another object of the present invention to provide a shoe of the above type wherein the material of the sole is reduced except below the essential structural support elements of the foot. It is another object of the present invention to provide a shoe of this type with an outer surface that follows a theoretically ideal stable surface, i.e. a tread with a base surface. Yet another general object of the invention is defined by the natural shape of the foot when not supporting weight and deforming at least theoretically to approximate an ideal stable surface when supporting weight. It is to provide a shoe structure having a design. Yet another object of the present invention is to provide a shoe structure in which the range of pronation and supination movements is plotted to define a curve with substantially no change in vertical component over a range of at least 40 °. To provide. Yet another object of the present invention is to terminate at a laterally extending portion made of flexible material and to approximate or ideally approximate an ideal stable surface when weight is applied. It is to provide a shoe having a sole edge surface configured to terminate at a position that is parallel.
Still another object of the present invention is to provide a shoe having a plurality of left-right vertical plane slits arranged at predetermined positions on the shoe sole. It is yet another object of the present invention to provide a correct method for measuring the thickness of the sole profile. Another object of the present invention is to provide a shoe which is shaped like a natural shape on the sides or edges of a human foot, and even if the sole is tilted to either side or forward or backward. It is an object of the present invention to provide a shoe having a sole that includes a round sole edge that is geometrically precisely contoured so that the sole thickness is exactly constant.

It is another object of the present invention to provide a shoe sole conforming to the shape of a foot, wherein the sole is adapted to the contour of the foot defined by a radius equal to the thickness of the sole at its outer edge. And providing a new shoe structure wherein the center of rotation of said surface is located at the outer edge of the top of the sole.
It is another object of the present invention that the invention includes at least an outer quadrant, wherein the outer edge of each quadrant coincides with a horizontal plane at the top of the sole, while the outer edge is perpendicular to the heel. An object of the present invention is to provide a sole structure of a type. It is yet another object of the present invention that the sole of the shoe, i.e. the outer sole, includes most or all of the new design special contours, while the other parts of the shoe, e.g., the midsole and heel lift members Is to provide a sole of this type, which is manufactured in a conventional manner. Yet another object of the present invention is a
It is an object of the present invention to provide a shoe of the type described above which includes a reinforcement included in the structure defining a theoretically ideal stable surface. It is yet another object of the present invention to provide a system of the above type wherein the reinforcement included in the structure defining the theoretically ideal stable surface is applied to the single-sided or double-sided embodiments of the invention described herein. To provide shoes. These and other objects of the present invention will become apparent from the following detailed description of the invention when taken in conjunction with the accompanying drawings.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT A perspective view of a prior art athletic shoe, such as a typical running shoe, is shown in FIG. In FIG. 1, a running shoe 20 includes an upper portion 21 and a sole 22. Such soles typically include a truncated outwardly extending structure of the type best shown in FIG. In FIG.
The lower part 22a of the heel of the shoe is such that the sole 22 is
1 and is considerably wider than the upper portion 22b that merges with the first portion. There are several alternative shoe sole designs known in the art, including the design shown in U.S. Pat. No. 4,449,306 issued to Cavanagh. In this US patent, the outer portion of the sole of the running shoe includes a rounded portion having a radius of curvature of about 20 mm. This rounded portion is located approximately along the rear half of the length of the outer portion of the central sole and the edge region of the heel, and in the remaining boundary region, except for the transition region, A conventional overhang is provided. U.S. Pat. No. 4,557,059 issued to Misevich also discloses a shoe having an otherwise overhanging sole.
An athletic shoe having a sole formed to conform to the shape of the foot is shown in the strike area of the first foot. In such prior art designs, and especially in athletic and running shoes, a typical design would be to have the heel as shown in FIGS. 2A and 2B outside the average men's shoe size (10D). It is attempted to obtain stability by widening the shoe sole 22a on the lower side to a width of, for example, 3 inches to 31/2 inches. On the other hand, the upper part 21
The width matched to the footprints of a human heel contained within is only about 2.25 inches for an average foot. Therefore, an unbalanced combination occurs in that the heel of the foot is locked into the lunar core of the stiff shoe heel by design. The lunar core holds the heel by holding the human heel tightly, and can also be reinforced by a motion control device to stabilize the heel. Thus, for the natural movement shown in FIGS. 2A and 2B, the human heel is typically about 15 °.
, The human heel cannot pivot except inside the shoe as shown in FIGS. 2A and 2B and is subject to resistance by the shoe. Thus, FIG. 2A is as conventionally practiced to support bare feet around point 23 defined by line 23a which is perpendicular to the heel and intersects the bottom edge of upper portion 21 at point 24. , Indicating that it cannot pivot about the central edge of the human heel. The moment of force due to the stress center distance of the overhanging sole is maximum at 0 °,
And becomes slightly smaller at the normal 7 ° pronation or supination, thus, as shown in FIGS. 2A and 2B,
Strongly resist such natural movements. In FIG. 2A, the outer edge of the heel must be compressed to accommodate such movement. FIG. 2B illustrates the center of gravity of the shoe and the lack of normal natural movement of the shoe in that the foot with the shoe is pushed upward as described below with respect to FIG.

[0009] Narrow rectangular sole designs with a heel width approximating the human heel are also known and are shown in FIGS. 2C and 2D. This sole is shown in FIGS. 2A and 2
It appears to be more efficient than the conventional overhanging sole shown in B. Because the width of the sole is the same as the width of the sole of a human foot, the shoe is normally 7 ° pronation /
It can pivot naturally by supination. In such a design, the vertical movement of the lever arm length and center of gravity is approximately half that of a protruding sole in a normal 7 ° pronation / supination running exercise. .
However, this narrow rectangular design, which has a width approximating the width of a human heel, is extremely unstable and therefore
The ankle joint was liable to sprain and was therefore not widely accepted. Therefore, none of these wide or narrow heel designs are satisfactory.

FIG. 3 shows the general concept of the design of the present invention in the left-right longitudinal section of the heel (center of the talar joint), ie, it matches the actual shape of the human foot 27 and the left-right longitudinal section. Sole 2 having a constant thickness (S)
8 is shown. The sole and side surfaces 29 of the foot 27 should exactly match the upper surface 30 of the sole 29. The thickness of the sole is defined as the shortest distance (S) between any point on the upper surface 30 of the sole 28 and the lower surface 31. (FIG. 23
And FIG. 24 more fully illustrates the method of measuring thickness. )
The general concept of the present invention is that, in effect, the sole 28 is made from a theoretically single flat sheet of sole material of uniform thickness, and that the sheet conforms to the shape of the foot. A sole 28 that wraps the foot 27 and conforms to the actual shape of the foot 27 so that it wraps the foot without twisting or deforming the seat when bent. In order to solve the problem of the actual serious deformation of such a bend or the contour wrapping the foot, the actual structure in the form of a sole of uniform thickness is preferably a multi-sheet laminate or injection molded Would involve using technology.

FIGS. 4A, 4B and 4C show a shoe according to the invention in which a stabilizing side 28a is formed at the outer edge of a sole 28b, generally designated 28, which is shaped to the shape of the foot. Significant elements of the design are shown in a vertical longitudinal section. Therefore, the main feature of the present invention is to select the outer part 31 of the sole formed according to the shape of the foot as shown in FIG. 3, especially the unnatural pointed bottom edge of the overhanging shoe. Is to eliminate. The side edge, or inner edge 30a, of the stabilizing side 28a of the sole, like the outer, or outer edge 31a of the stabilizing side 28a of the sole, follows a theoretically ideal stability plane, It is shaped to resemble the actual shape of the side, or edge, of a human foot.
In accordance with the present invention, the thickness (S) of the sole 28 is maintained at an exactly constant value, even if the sole is inclined to either side, or forward or backward. Thus, the stabilizing side 28a formed to the shape of the foot according to the invention is formed to be the same as the thickness 33 of the sole 28, so that the sole is theoretically ideal at its outer edge in cross section. Stabilization tailored to the shape of a foot having a surface 31a described as a side formed to conform to the shape of a foot equal to the thickness (S) of the sole 28, showing a portion of the typical stability surface A stable sole 28 having sides 28a is provided. In the case of the example shown, the shape of the foot assumes that it bears weight and therefore is flat along the sole, so that the top of the sole 30b matches the footprint that bears the weight of the shoe wearer. ing. The top edge 32 of the stabilizing side 28a shaped to the shape of the foot can be placed at any point along the side 29 shaped to the shape of the foot, while the shape of the foot Side 28 formed together
The inner edge 33 of a is the vertical side 34 of the sole 28b that supports the weight.
Is consistent with As a practical matter, the sole 28 is the part 28
Preferably, b and 28a are integrally formed.
Thus, the theoretically ideal stable surface includes a contour 31a that merges with the lower surface 31b of the sole 28. The area around the weight-bearing portion of the sole 28b of the shoe includes all of the foot-supporting structure, but as shown in FIG. 4D, which is a top view of the upper surface 30b of the sole. It is preferable not to extend beyond the outer edge of the sole 37 defined by the footprints when the footprints fall. Accordingly, FIG. 4D illustrates the foot contour by reference numeral 37 and shows the recommended sole contour 36 for the foot contour. Therefore, the contour of the horizontal plane at the top of the weight-bearing part of the sole conforms as closely as possible to the weight-bearing part of the sole that the sole touches, except for the stabilizing side made to fit the shape of the foot. Should. The contour of such a horizontal plane is uniform throughout the thickness of the sole without any negative or positive overhang of the sole, as best shown in FIGS. 4D and 7D, so that the sides are Should be exactly perpendicular to the horizontal plane as shown in Preferably, the density of the sole material is uniform.

Another important feature of the present invention is schematically illustrated in FIG. A heel lift member, i.e., wedge 38, having a thickness (S1) has a center sole in the rearward direction of the shoe and an outer sole 39 having a thickness (S).
As the total thickness (S + S1) is increased, the thickness of the side 28a formed to the shape of the foot is preferably increased by exactly the same amount according to the principle described with reference to FIG. . The sole further varies with respect to the conventional horizontal contour, as shown in FIG. 5B, in accordance with the thickness of the sole and in the lateral longitudinal plane by means of the lifting member 38 of the heel of the shoe. The present invention can be considerably improved by adding a shaped side 28a. Therefore, as shown in FIG. 5B, the thickness of the side portion 28a formed according to the shape of the foot in the heel portion is the sole 39 shown in FIG. 5A.
The thickness (S) of the heel lift member 38 is larger than the thickness (S) of the heel.
It is equal to the thickness (S + S1) of the sole 28 which is thicker by an amount equal to 1). Therefore, in the general case, the thickness (S) of the side formed according to the shape of the foot is always equal to the thickness (S) of the sole. FIG. 6 illustrates a side view of a shoe to which the present invention has been applied, and a cross-sectional view thereof is shown in FIG. 7A, 7B and 7C
FIG. 6 shows a lateral vertical plane section taken at the front of the foot, the fifth central bone and the heel;
Although it changes from the front part to the rear part due to the provision of the heel lift member 38 as shown in the above, the side part is constant in each left-right vertical plane cross section and is formed according to the shape of the foot. 7A through FIG.
It is shown that the thickness is equal to the thickness of the sole in C. Moreover, in FIG. 7D, which shows an overview of the horizontal plane of the left foot, it can be seen that, as shown in FIG. 4D, the profile of the sole conforms to the preferred principle so that it conforms as closely as possible to the footprint when carrying weight. Thus, FIG. 8 shows a conventional overhanging sole 22 shown and shown in phantom outline in FIG. 2 and a sole adapted to the shape of the foot according to the invention shown in FIGS. 28 is shown in contrast to the left-right vertical plane cross section. FIG. 9 is suitable for analyzing a sole design according to the present invention by contrasting the neutral state shown in FIG. 9A with the extreme states shown in FIGS. 9B and 9C. Unlike the pointed sole edge of the conventional shoe shown in FIG. 2, the operation of the present invention having the side portion 28a formed to the shape of the foot makes the toe of the foot inward (pronation). ) Or in the outward (eversion) mode, it is completely neutral so that the foot wearing the shoe naturally interacts with the ground 43. This occurs, in part, because the thickness along the edge of the sole does not change, thereby keeping the soles equidistant from the ground where appropriate. In addition, the shape of the edge 31a of the side 28a of the shoe, which is made to match the shape of the foot, exactly matches the shape of the edge of the foot, so that the shoe is ground as close as possible to the foot. And can naturally interact with each other. Therefore, in the neutral position shown in FIG. 9, an arbitrary point 40 on the surface of the sole 30b closest to the ground is located at a distance (S) from the ground 43. This distance (S) is kept constant even in extreme situations, as can be seen from FIGS. 9B and 9C.

The point of the present invention is that the design shown is stable even in extreme conditions, as shown in FIGS. 9B and 9C. This logically ideal stability surface is
A sole in which the stable surface is constant at all points of the sole that support weight for any amount of rotation in the range of 0 ° to 90 ° on either side or forward or backward of the sole. It is defined as the thickness of In other words, if the shoe is tilted 0 ° to 90 ° to either side as shown in FIG. 9 or the foot is bent 0 ° to 90 ° back or the sole is bent 0 ° to 90 ° When the foot is tilted 0 ° forward or backward, the thickness (S) of the sole between the foot and the ground is always kept constant due to the precisely quadrant shaped sides, Your feet remain stable.
This stable shoe, by keeping a certain distance from the ground, allows the foot to interact with the ground as if it were barefoot, while the foot can be protected and cushioned by the shoe . The sides shaped to the shape of the new foot, in its preferred embodiment, effectively position and hold the foot on the weight bearing footprint of the sole, and provide a heel lunar core and other comparisons. This reduces or eliminates the need to provide a physically rigid motion controller. FIG.
A is a side portion 28a of the sole formed according to the shape of the foot.
FIG. 10 illustrates a manner in which the inner edge 30a is maintained at a constant distance from the ground by rotating the edge 31a of the sole 31 to various degrees as shown in FIG. FIG. 10B shows that instead of pivoting around the upper edge 40, the conventional sole pivots around the lower edge 42, which is the center of rotation. As a result, the upper edge 40 is not maintained at a constant distance from the ground as in the case of the present invention, but this distance decreases to 0.7 (S) when rotated 45 ° and when rotated 90 °. To zero. FIG. 11 shows an anteroposterior thickness of a conventional sole such as a heel lift or wedge 38 or a toe taper 38a or a taper 38b across the sole as shown in FIGS. 11A-11E. 5 shows how the sides 28a, which are adapted to the change as well as to the shape of the foot, are equal as described for FIG. 5, and thus change as the thickness changes.

FIG. 12 allows the weight and bulk of the sole to be reduced while slightly sacrificing the stability of the shoe.
FIG. 4 illustrates an embodiment of the present invention using a changing portion of a theoretically ideal stable surface 51 on a side 28a formed to conform to the shape of the foot. Thus, FIG. 12A shows a preferred embodiment as described for FIG. 5 in which the outer edge 31a of the side 28a formed to the shape of the foot matches the theoretically ideal stability plane 51. The surface 31a formed according to the shape of the foot and the lower surface 31b of the shoe sole are shown in FIG.
And a theoretically ideal stable surface 5 as in FIG.
1a. The theoretically ideal stable surface 51 is a sole whose sole conforms to the natural shape of the foot, particularly the shape of the side of the foot, and which has a constant thickness in the cross section in the vertical plane in the left-right direction. Is defined as the plane of the bottom surface. As shown in FIG. 12B, due to design / machining trade-offs, the foot was shaped to a shape that approximated the natural shape of the foot (or even a more geometrically regular shape, which is somewhat undesirable). The side 53a is formed at an angle to the upper surface of the sole 28 so that a small portion of the side 28a is made to conform to the shape of the foot defined by a constant thickness along the surface 31a. By arranging only the same on the same plane as the theoretically ideal stable surface 51, the side portions 28a are simplified within the theoretically ideal stable plane 51. FIGS. 12C and 12D show a theoretically ideal stable surface 51 from each of the illustrated machining / design trade-offs.
A similar embodiment is shown in which the portion of the side 28a formed to conform to the shape of the foot arranged along is progressively smaller. The part of the surface 31a is united with the upper surface 53a of the side part formed according to the shape of the foot. The embodiment of FIG. 12 may be desirable for portions of the sole that are less frequently used, and therefore, additional portions on the sides are not often used. For example, one shoe is 4
It may rotate laterally up to typically 20 ° in pronation mode, on the order of 100 times each time it rotates to 0 °. FIG.
In the baseball shoes shown in FIG. 2B, it is necessary to provide extra stability. Nevertheless, the weight of the shoe added to withstand the exercises that are rarely experienced is roughly comparable to the weight added to withstand the exercises that are frequently encountered. In racing shoes, this weight may not be desirable,
It is also possible to consider design / work trade-offs of the type shown in FIG. 12D. An exemplary running / jogging shoe is shown in FIG. 12C. The range of changes that can be made is unlimited.

FIG. 13 shows a theoretically ideal stable surface 51 for forming an embodiment of a sole with different treads or cleat patterns. Thus, FIG. 13 shows that the present invention is applicable to soles having conventional sole treads. Thus, FIG. 13A is similar to FIG. 12B further including a tread portion, while FIG. 13B is similar to FIG. 12B where the sole includes a cleat portion 61. The surface 63 to which the base of the cleat is added is preferably arranged flush and parallel to the theoretically ideal stable surface 51, since on soft ground the surface 63 supports the weight rather than the cleat. Should. The embodiment shown in FIG. 13C further includes another type of tread structure 62.
Is similar to In each case, the outer surface or cleat pattern 60-62 that supports the weight of the tread is positioned along a theoretically ideal stable surface 51. FIG. 14C
Shows a rear cross section of an embodiment in which the invention is applied to a shoe in order to obtain an aesthetically pleasing and functionally effective design. Thus, a practical design of a shoe incorporating the present invention is feasible even when applied to a shoe that includes a combination of a heel lift member 38 and a center sole and outer sole 39. . Thus, the use of sole and sole shapes that match theoretically ideal stability surfaces does not detract from the commercial appeal of shoes incorporating the present invention.

FIG. 15 shows a sole-shaped sole design that conforms to all natural shapes of the foot, including the sole and the sides of the foot. This sole, perfectly shaped to fit the shape of the foot, is slightly rounded when the sole of the human foot does not support weight and flattens when supporting the weight, as well as not supporting weight It is assumed that occasionally slightly rounded soles deform due to weight and flatten. Therefore, the sole material must be of a composition that allows for the deformation of the shoe according to the deformation of the foot. This design applies in particular to the heel of a shoe, but applies equally to the rest of the sole. Aligning the shape of the shoe closest to the natural shape of the foot allows the foot to function as naturally as possible with a design that perfectly matches the shape of the foot. The embodiment of FIG. 15 is deformed by flattening so that when it receives weight, it looks basically the same as the embodiment of FIG. From this point of view, the side design made to match the foot shape shown in FIG. A more conventional and conservative design, which is a special case of design that perfectly matches the shape of the foot. Obviously, the amount of deformation due to flattening used in the design of FIG. 14 will change when subjected to different loads, but is not an essential factor of the present invention. Both FIGS. 14 and 15 illustrate the principles underlying the present invention, ie, ideally ideal for all kinds of efficient natural movements, including running, jogging or walking. The stable surface is shown by a vertical plane cross section in the left-right direction. FIG. 15 shows the most general case of the present invention, namely a completely tailored design that matches the natural shape of the unloaded foot. The theoretically ideal stable surface 51 is determined, for any particular individual, firstly by the desired sole thickness (S) in a lateral longitudinal section, and secondly by its It is determined by the natural shape of the surface 29 of the individual's foot.

The theoretically ideal stable surface for any particular individual (or the average of the individual's size) is, for the special case shown in FIG. Determined secondarily by the natural shape of the individual's foot, and thirdly, by physical contact with the human sole as shown in FIG. It is determined by the width of the cross section in the left-right vertical plane of the footprint 30b that supports the weight of the individual and is formed as the upper surface of the sole that supports the sole. The theoretically ideal stability surface for the special case consists of two parts, from a conceptual point of view. FIG.
As shown in FIGS. 4 and 4, the first portion is a line segment 31b that is parallel to footprint 30b and has an equal length at a constant thickness (S) equal to the thickness of the sole. This first
The portion corresponds to a conventional sole just below a human foot, and also corresponds to a flat portion of the sole 28b that supports weight.
The second part is the first part, the outer rim 3 of the side, adapted to the shape of the foot arranged on each side of the line segment 31b.
1a. Outer edge 3 of the side made according to the shape of the foot
Each point on 1a is located at a distance exactly equal to the thickness (S) of the sole from the nearest point on the inner edge 30a of the side, adapted to the shape of the foot. In summary, the theoretically ideal stable surface is used to determine the geometrically accurate bottom shape of the sole based on the shape of the top that matches the shape of the foot, so that the present invention It is essence. The present invention, in particular, claims patents relating to the just-determined geometric relationships just described. Any sole shape, including similar shapes beyond the theoretically ideal stable surface, will limit the natural movement of the foot, while the shape of the sole within said stable surface will naturally increase in direct proportion to the amount of deviation. It can clearly state that the stability deteriorates.

FIG. 16 shows by curve 70 the range of left and right pronation / supination movements of the center of gravity 71 of the ankle from the shoe according to the present invention, shown in a frontal plan section of the ankle. Thus, in the static case where the center of gravity 71 is located approximately at the midpoint of the heel, the shoe is shown in FIGS.
As shown in C, 0 ° to 20 °, further 40 °
Assuming pronation or supination, the locus of the points of motion of the center of gravity defines a curve 70. In curve 70, the center of gravity 71 maintains a steady and steady level of motion without creating a vertical component force by inward or outward of the foot by 40 °. For the embodiment shown, the stable equilibrium point of the sole is at 28 ° (at point 74) and the pivoting edge never defines a pivot point as in FIG. Absent. The inherently excellent lateral stability of this design provides control of pronation (or supination) as well as lateral (or pronation) control. In stark contrast to conventional sole designs, the design of the present invention virtually eliminates abnormal torques that impede natural pronation / supination movements or destabilize the heel joint. FIG. 17 shows the range of motion of the center of gravity for the present invention as shown by curve 70, the curve 80 for a wide and overhanging conventional heel, and the heel of a narrow rectangular shoe having the width of a human heel. This is a comparison with the curve 82. Since the stability limit of the shoe is 28 ° in the pronation mode, the sole is stable at 20 °, ie approximately at the pronation limit of bare feet. Due to this factor and the support base being wider than the sharp bottom edge of the prior art,
Even in the most extreme cases shown in FIGS. 16A to 16C, the design of the contour of the shoe is stabilized, and the thickness of the shoe sole in the vertical cross section in the lateral direction is set to be constant, that is, set not to change. By doing so, the inherent stability of the bare feet is obtained without any hindrance, unlike existing designs. Thus, the excellent stability of the side design, which is shaped to the shape of the foot, is evident when observing how flat the curve 70 of the center of gravity is over the widely spread design currently in wide use. Would. This curve shows that the side design, shaped to the shape of the foot, makes natural 7 ° pronation / supination exercises much more efficient than the narrow rectangular design with the width of the human heel. And is much more efficient than conventional wide overhanging designs, and at the same time, the side design, which is shaped to the shape of the foot, can, in extreme cases, destabilize torque. Since it does not work, it is more stable than any conventional design.

FIG. 18A pictorially illustrates a comparison of the cross section of a heel joint of a conventional shoe with the cross section of a shoe according to the present invention when engaged with the heel. As can be seen from FIG. 18A,
When the heel of the wearer's foot 27 engages the upper surface of the sole 22, the shape of the heel and the sole of the foot
3, but does not match the shape on both sides of the foot 27. As a result, the conventional sole 22 cannot follow the natural 7 ° pronation / supination movement of the foot,
And its normal movement is hindered by the upper part of the shoe, especially when stiffened by a rigid heel lug core and a movement control device. This disturbance to natural movement creates a fundamental misunderstanding of the designs currently in use.
A misunderstanding of the basic concept of existing shoe design is that while the upper part of the shoe is considered as part of the foot and conforms to the shape of the foot, the sole is functionally considered as part of the ground, and therefore It is shaped like a ground rather than a foot. In contrast, the new design illustrated in FIG. 18B illustrates the correct concept of the sole as a portion of the foot and as an extension of the foot, with the sides of the sole forming a shape exactly similar to the shape of the foot. And the thickness in the lateral vertical plane of the sole between the foot and the ground is always the same, and is therefore completely neutral to the natural movement of the foot. As described for the present invention, this correct basic concept allows the shoe to move neutrally with respect to the foot instead of restraining the foot, thus creating an inherent contradiction in the design goals. Rather, both natural stability and natural efficient exercise coexist in the same shoe. Thus, the shoe design according to the foot shape of the present invention, in one sole design, is free of injuries and functional efficiency, significant in the stability of bare feet and natural free movement, significant At the same time, the cushioning and protection characteristic of state-of-the-art shoes is obtained with a high speed and / or durability. Significant speed and durability improvements are expected, both based on improved efficiency and the ability of the user to train harder without injury. These figures also show that in the case of the prior art shoe shown in FIG. 18, the heel of the shoe can only pivot ± 7 °. In contrast, the heel of the shoe in the embodiment of FIG. 18B pivots with the natural movement of the heel of the foot.

FIGS. 19A to 19D show the load-bearing feet, such as the main longitudinal ankle, the metatarsus (or anterior foot), and the phalange head (anterior foot). FIG. 4 illustrates a lateral longitudinal plane cross section of a side design formed to conform to the shape of a foot extending to other natural shapes below the ridge between the distal phalanx head and the toe. ing. The thickness of the sole is kept constant when the shape of the sole conforms to the shape of the side and sole of the foot supporting the weight, as shown. FIG. 19E shows a lift member 3 having a heel thickness of a heel.
8 shows a longitudinal vertical cross section of the sole of the shoe sole conforming to the shape of the sole supporting the weight, which has been changed according to FIG. FIG. 19F shows a horizontal plan view of the left foot (see FIG. 4) showing an area 85 of the sole corresponding to the flat part of the sole that comes into contact with the ground when supporting weight. The contours 86 and 87 are above the flat weight bearing area 85, and the sole 30 shown in FIG.
5 schematically shows the relative height of the contour of the sole formed within a range 35 around the upper surface of the sole. The horizontal bottom view (not shown) of FIG. 19F is exactly the opposite of FIG. 19F. (That is, the contours of the top and valley are exactly reversed.) FIGS. 20A-20D illustrate a laterally designed sole-shaped sole design extending to the sole that does not support weight. 5 shows a vertical plane (see FIG. 4) cross section. FIG. 20E shows a longitudinal plane cross section in the front-rear direction. The sole profile under the foot is the same as in FIGS. 19A-E, except that there is no flat area corresponding to the flat area of the weight-bearing foot. The solely rounded contour of the sole conforms to the contour of the foot when not supporting weight. The same heel lift member 38 as in FIG. 19 is also provided in this embodiment, but is not shown in FIG. FIG. 20C shows the outermost portion 202 of the sole side defined on the outer side of the sole 28 by a vertical line 204 located at the outermost limit 203 of the inner surface 30.
Is shown. FIG. 20C shows the outermost limit 2 of the sole side.
01 is also shown. Similarly, FIG. 20D shows the sole defined by the outermost limit 201 of the sole side and the vertical line 204 located at the outermost limit 203 of the inner surface 30 on the central side of the sole 28. The outermost portion 202 of the side is shown. Indentation 96h
Are shown in the vertical plane in the left-right direction of FIGS. 20A and 20B. In FIGS. 20A to 2, the lower portions of 95a, 95d, 96c, 96g, 97b and 98a are rounded.
This is shown in the left-right vertical plane of 0D and the front-rear vertical plane of FIG. 20E. The push-in portions 96f and 96m are shown in FIG.
Also shown at 0E. FIG. 20E shows the sole 2 in the heel.
A thickness of 8 is also shown, where the section 20D taken is greater than the thickness of the sole 28 at the front of the foot taken at section 20A.

FIG. 21 conforms to the fully contoured design described with respect to FIGS. 20A-20E, but is limited along the sides to only the essential structural support and propulsion elements. FIG. 4 shows a horizontal top plan view of the left foot, which is omitted. The density of the sole material can be increased in the essential support elements (rounded) that have not been omitted in order to correct the increase in load due to pressure. The essential structural support elements are the base 95 of the calcaneus and the outer ridge 9
5 ′, the metatarsal heads 96, 96 ′ and the fifth metatarsal base 97 (see FIG. 44). These support elements must be supported both below and outside for stability. The essential propulsion element is the head of the distal first phalange.
The central (medial) and lateral (lateral) sides that support the base of the calcaneus are oriented substantially along the axis of the ankle joint below the horizontal ankle, as shown in FIG. It can be more conventionally arranged along the longitudinal axis of the sole. FIG. 21 except for the basic areas shown
It is not necessary to use a stabilizing side formed to the shape of the foot. FIG. 21 shows the terminal first as an essential part.
Rounded portion 98a located at the head of phalange 98, fifth
A rounded portion 96e located at the head 96 of the metatarsal, a rounded portion 96 located at the base 96 'of the fifth metatarsal
d, rounded portion 9 located at the base 97 of the fifth metatarsal
7b shows a rounded portion 95C located at the outer ridge 95 of the calcaneus and a rounded portion 95b located at the base 95 'of the calcaneus. The stabilizing sides which are not essential are omitted, and the rounded portions (95b, 95c, 96
d, 96e, 97c and 98) and thin regions (96a, 96b, 96j, 96k, 96L and 97)
a) (also called "omitted parts"). Contour lines 85-89 schematically illustrate the relative height of the contour of the sole approximately within the perimeter 35 of the undeformed upper surface of the sole 30 shown in FIG. FIG.
The horizontal bottom view (not shown) of 1 would be exactly the reverse of FIG. (The tops and valleys are exactly reversed.) FIG. 22A
FIG. 2 is a development view of a commuting shoe having a sole portion side formed to match the shape of a foot incorporating features of the present invention. FIG. 22A shows a theoretically ideal stable surface 51 as described above for such a commuting shoe, with the thickness of the side formed to the shape of the foot equal to the thickness of the sole. ing. This commuting shoe having a sole that is properly shaped to the footprint, typically in the form of a side edge perpendicular to the ground, is shown in FIG. . FIG. 22B shows a similar commuting shoe designed completely to the shape of the foot, including the bottom of the sole. Accordingly, the present invention provides an unconventional shoe with a heel-lift member, such as a simple wedge member, or a heel separated from a portion corresponding to the front of the foot by a hollow below the instep. Applicable to most conventional designs of typical work shoes. The invention can be applied just to the heel of a shoe or to the entire sole. When applying the present invention in this manner, the stability and natural motion of any existing shoe design, except for high heel or spike heels, is significantly improved by the design of the sole made to fit the shape of the foot. be able to.

FIG. 23 illustrates a method of measuring the thickness of a sole used to construct a theoretically ideal stable surface of a side design adapted to the shape of the foot. The constant thickness of the sole of this design is firstly perpendicular to the tangent at a point on the side surface made to match the shape of the sole, and secondly on the same sole surface It is measured at any point on the side formed to the shape of the foot along a line passing through the points. FIG. 24 illustrates another approach to constructing a theoretically ideal stable surface, which is easy to use, i.e., by the radius of a circle. By that method, the pivot point of the compass (center of the circle) is located at the origin of the natural lateral profile of the sole (lateral vertical section) and is equal to (S), ie the thickness of the sole Draw an arc of approximately 90 ° (or, if accurately estimated, a much smaller angle arc) of the circle with radius to delineate the region furthest from the sole profile. All of these methods are performed along the natural side contour of the sole at very small intervals (smaller intervals are more accurate). When all circles have been defined, the outer edge farthest from the sole profile (again, the horizontal vertical plane cross section) is established at a distance "S" and the outer edge is theoretically Consistent with ideal stability. Both this method and the method described in FIG. 23 use manual design and CADCAM.
Will be used to apply to both designs.

FIGS. 25A and 25B show a sole according to the present invention.
26 and by approximating the contour as shown in FIG. FIG. 25A shows a left-right longitudinal section of a design that is relatively flexible such that the sole material in region 107 easily deforms to the contours of the proposed sole 28 of the present invention. In the proposed approximation shown in FIG. 25B, the cross-section of the heel comprises the upper surface 101 of the sole and the theoretically ideal stable plane 5 set inside when deformed.
1 and the lower end surface 102 of the sole corresponding to the sole. The bottom end surface 102 of the sole terminates in a laterally extending portion 103 coupled to the heel of the sole 28. The laterally extending part 103 is made of a flexible material and its lower surface 1
02 is deformed so as to terminate in parallel with the theoretically ideal stable plane 51 set inside. The sole material in certain areas 102 is very flexible so that it can be sufficiently deformed. Therefore, in the dynamic case, the contour of the outer edge substantially conforms to the theoretically ideal shape of the stable surface described above as a result of the deformation of the laterally extending portion 103. The upper surface 101 is similarly deformed to be substantially parallel to the natural contour of the foot, as described by the lines 30a and 30b shown in FIG.
It is presently believed that controlled, ie, programmed, transformations can be performed by either of two techniques. In one technique, the sides of the sole, especially the central sole, are cut or tapered so that the sole of the sole bends inward until it is under the correct contour under pressure. Grooves can be formed. The second technique is to form an easily deformable material 10 with a tapered side, so that the side of the heel deforms under pressure until the contour is correct.
7 is used. Although such techniques provide stability and natural motion, which is a considerable improvement over the prior art, these techniques are less than the contours obtained by simple geometric shaping. Inferior in nature.
First, the actual deformation is unnatural and must be done by pressure, which does not occur in the case of bare feet, and secondly, if the particular running method or weight of the individual is supported, elaborate Even with design and manufacturing techniques, only approximations are possible by deformation. Therefore, this deformation method is limited to a small acting force that corrects the contour from the surface approximated to the ideal curve in the first case. The theoretically ideal stable surface can be approximated by a plurality of line segments, for example, tangents, chords and other lines as shown in FIG. Foot side 30a
Both the upper surface of the sole 28 and the side bottom surface 31a formed in accordance with the shape of the foot can be approximated. A single flat surface 110 provides a rough approximation of both the natural contour of the foot and the theoretically ideal stable surface 51, thus correcting many of the biomechanical problems associated with existing designs. However, single-plane approximation is not currently preferred because it is not the most optimal. By increasing the number of flat planar surfaces formed, this curve, as described above, more closely approximates the ideal exact design shape. The single-surface approximation and the two-surface approximation are shown as line segments in the cross section shown in FIG.

FIG. 27 shows a stable side component 28 which is determined in a mathematically accurate manner to approximately match the side of the foot.
5A is a left-right vertical plane cross section of another embodiment of the present invention showing a. (The center of the sole component 28b supporting the weight is as described in FIG. 4.) The side 2 of this component
8a would be a quadrant of a circle of radius (r + r ¹ ). However, the distance (r) must be equal to the thickness (S) of the sole, so that the small quadrant of the radius (r ¹ ) is the quadrant (r
+ R ¹ ). Thus, component side 28a is, geometrically speaking, a quarter or other portion of a ring. The center of rotation 115 of the quadrant is selected to obtain an upper side 30a of the heel that closely approximates the natural contour of the side of the human foot. FIG. 27 shows a direct link to another invention by the applicant, namely the design of a sole with quadrant stabilization sides.

FIG. 28 provides maximum flexibility to the sole, particularly along the axis 120, between the base of the calcaneus 125 (heel) and the head of the metatarsal 126 (front of foot). Fig. 4 shows a sole design that allows unimpeded natural pronation / supination movement of the calcaneus. If the flexibility is not sufficient, the axis 120
An unnatural twist occurs around the sole, so that conventional soles impede this movement by constraining the pronation / supination movement. The purpose of this design is to replace the calcaneus with the relatively fixed front of the foot, instead of the fixed or associated structure in conventional designs or the lack of a stable structure between the calcaneus and the front of the foot. To make the calcaneus relatively mobile (during pronation and supination) to be articulated freely and independently from the part. In a sense, an articulated joint is formed in the sole parallel to the sole. This design removes almost all of the sole material between the heel and the front of the foot except for one of the essential structural support elements described above, namely, below the base 97 of the fifth metatarsal. It is to remove. In addition, the main longitudinal bow 121 can be optionally supported for a runner who runs with his / her feet considerably prone, but this is not necessary for many runners. The front of the foot can be subdivided (not shown) into the essential structural support and propulsion elements of its components, the individual heads of the metatarsals and the heads of the distal phalanx, thereby The main articulation set can be parallelized by a freely articulating sole support propulsion element, ie, an anthropomorphic design. Various arrangements of the subdivided parts are also possible. An additional advantage of this design is that, during the sprinting and toe-advancing phase, even if none of the other embodiments of the present invention are applied, the axis is aligned with the front of the foot. A better flexibility is obtained along 122, ie the advantages of this design are obtained in a conventional sole design. FIG. 28A shows that the large non-essential elements have been removed to provide flexibility and have been joined only by the top layer (horizontal plane) of non-stretchable fabric 123 such as Dacron polyester or Kevlar. Figure 4 shows a longitudinal longitudinal section in a special design of maximizing flexibility. FIG. 28B shows another special design having a thin sole upper layer 124 instead of cloth and a different structure for the flexible portion, i.e., increased structural support and still more than conventional designs. A variant of the design with higher flexibility but with slightly reduced flexibility is shown. Not shown are a slit in a single anterior-posterior longitudinal plane in the sole material (full or partial) and a first intermediate portion between the base of the calcaneus and the base of the fifth metatarsal. , A simple moderate approach consisting of a second intermediate portion between the base and the base of the metatarsal bone. FIG. 28C is a bottom view (horizontal plane) of a design that provides flexibility for pronation / supination.

FIG. 29 shows a sole 2 generally designated by the reference numeral 28.
8b shows a left-right longitudinal section of a key element of Applicant's sole design using a stabilizing quadrant 26 at the outer edge of 8b. Therefore, a key feature of the present invention is to select a rounded sole edge 25 as shown in FIG. 29, and in particular to eliminate the unnatural sharp bottom edge of overhanging shoes. . The side, or edge 25, of the sole 28 is exactly similar to the natural shape of the side or edge of a human foot, but is geometrically accurate and conforms to a theoretically ideal stable surface. Is formed. According to the present invention, the thickness (S) of the sole 28 is maintained at an exactly constant value even if the sole is tilted to either side or forward or backward. Thus, according to the present invention, the side stabilizing quadrant is defined by a radius 25a that is the same as the thickness of the sole 28, so that the sole, in cross-section, has a quadrant 26 at the outer edge. A stable sole 28 having a surface 25 of the quadrant 26 which forms part of a theoretically ideal stable surface and is defined by a radius 25a equal to the thickness (S) of the sole; The center of rotation of the quadrant 26 is located at the outer edge 41 of the top surface 30b of the shoe sole that matches the footprint that supports the weight of the shoe wearer. The outer edge 32 of the quadrant 26 matches the horizontal plane at the top of the sole 28b,
On the other hand, the other edge of quadrant 26 is perpendicular to edge 32 and coincides with the vertical side of sole 28b. Sole 2
8 is, in practice, preferably integrally composed of parts 28b and 26. Also, the outer edge 32 can extend at an angle to the upper surface of the sole. Therefore, the theoretically ideal stable surface is the sole 28
b includes a contour 25 that merges with the lower surface 31b. The area 36 around the sole includes all of the foot support structure but beyond the outer edge of the sole 37 defined by the weight bearing footprint as shown in FIG. 4D, which is a top view of the upper surface 30b of the sole. It is preferred that it does not extend. Therefore, FIG.
Exemplifies a foot contour indicated by reference numeral 37 and a shoe sole contour 36 recommended for the foot contour. Thus, the horizontal contour of the top of the sole should preferably match as closely as possible the weight bearing portion of the sole with which the sole contacts.
The profile of such a horizontal sole, best shown in FIG. 4D, is such that the side of the sole is exactly perpendicular to the horizontal plane, as shown in FIG. It should be kept uniform over the entire thickness of the sole in which it was removed. Preferably, the density of the sole material is uniform.

Another important feature of the present invention is schematically illustrated in FIG. As the heel lift member or wedge increases the sole thickness (S) toward the rear of the shoe, the side quadrants 26 have approximately the same amount according to the principles described with respect to FIG. Only increase. Thus, according to the applicant's design, the radius (25a) of the curvature (r) of the side quadrant is always equal to the constant thickness (S) of the sole in a longitudinal vertical section. For shoes that follow more conventional horizontal contours, as shown in FIG. 30B, the sole changes in accordance with the present invention with the thickness of the sole and in the lateral direction according to the lift of the heel of the shoe. Outer edge quadrant 26 having a radius that varies in the vertical plane
Can be considerably improved by adding. Therefore, the radius of curvature of the quadrant 26a is
As shown in the figure, it is equal to the thickness S1 of the sole 28b. This thickness S1 is greater than the sole thickness (S) shown in FIG. 30A by an amount equal to the heel lift (S-S1). Therefore, when generalized, the radius of the quadrant (r
1) is always equal to the sole thickness (S). FIG. 31 shows how the center of rotation of the heel quadrant 41 is maintained at a constant distance (S) from the ground over various angles of rotation of the sole edge 25 in contrast to 10B. Stable shoes must maintain a certain distance from the ground, allowing them to interact with the ground as if they were bare feet, and protecting and cushioning the feet with shoes. Becomes possible. The design adapted to the shape of this new foot is, in its preferred embodiment, an upper part 2 of the shoe that includes a heel lunar core and other movement control devices.
1 envisions placing and holding the foot effectively on the weight bearing footprint of the sole. FIG. 32 illustrates only a portion of the theoretically ideal stability surface 51 in the quadrant 26 to reduce the weight and bulk of the sole and to allow for some compromise in shoe stability. 1 illustrates one embodiment of the invention used. Therefore,
FIG. 32A shows that the outer quadrant 50 follows a theoretically ideal stable surface 51 around a center 52 and a sole 54
In the same plane as the upper surface of (or at a certain angle)
30 illustrates the preferred embodiment described above with respect to FIG. 30 defining a surface 53. The surface 50 conforming to the footprint and the lower surface 54A of the sole are arranged along a theoretically ideal stable surface, as in the case of FIG. From a design / machining trade-off, only a portion of the quadrant defined by the radius along surface 50a, as shown in FIG. 32B,
By forming the surface 53a of the quadrant at an angle to the upper surface of the sole 54 so as to be positioned in the same plane as the theoretically ideal stable surface 51, Has been simplified. FIG. 32C shows
The design / machining balance results in a portion 50b that is located along a theoretically ideal stable surface 51. Part 5
Ob is united with the upper surface 53a of the quarter circle part and the second part 56 which unites itself. The embodiment of FIG. 32 may be less frequently used, and thus may be desirable for those portions of the sole where additional portions of the side are less frequently used. For example, each time the shoe rotates 40 ° in the pronation mode, it can rotate laterally, typically on the order of 100 times each time, typically about 20 °. Nevertheless, the added weight of the shoe to cover this entire area is almost comparable to covering this limited area. In a racing shoe, this weight is undesirable, allowing for design / work trade-offs of the type shown in FIG. 32C.

FIG. 33 shows an exploded view of a commuting shoe having a sole adapted to the shape of the foot incorporating the features of the present invention in FIGS. 33A-33C. FIG. 33A
Shows a cross section of the heel of a typical commuter shoe 94 having a sole portion 79 and a heel lift member 81. FIG. 33B
Shows a theoretically ideal stable surface 51 as described above for such a commuting shoe where the radius of curvature (r) of the edge of the heel equals the thickness of the sole. Thus, a commuting shoe having a heel that is tailored to the shape of the foot is shown in FIG. 33C in a form that has reduced side edge thickness to reduce bulk and has a more aesthetically pleasing appearance. . Accordingly, the present invention is directed to a shoe with an unconventional heel lift member, such as a simple wedge member, or a representative in which the heel is separated from the front of the foot by a hollow portion below the instep. It can be applied to the most conventional design of work shoes. For the embodiment of FIG. 33, the theoretically ideal stable surface is the optimum when measured along the width of the tissue of the human hard heel, where the heel is assumed to rotate in pronation / supination mode. Determined by the width and thickness of the sole, using the human heel. With this application of the invention, the stability and natural motion of any existing shoe design except high heel or spike heel will configure the sole of the sole into a shape that conforms to the theoretically ideal stable surface. Thereby, it can be considerably improved. 34A and 34B
Shows that it is desirable to use a sole wedge insert 84 according to the present invention to support the calcaneal ridge. As shown in FIG. 34A, the heel ridge 99 becomes unsupported when the prior art shoe is prone to a 20 ° angle. This is the limit of the almost natural movement of the pronation of the calcaneus, at which point the ridge of the calcaneus located on the outside of the calcaneus comes into contact with the ground and further outwards. Limit exercise. When the conventional wide sole reaches such a pronation limit, the sole separates from the unsupported calcaneal ridge in region 100, while the foot is barefoot, The ridge of the calcaneus comes into contact with the ground and is firmly supported. Referring to this situation, a wedge-shaped member 84 of a relatively stiff material, generally corresponding to approximately the density of the center sole of the sole and the lift member of the heel, is provided laterally to support the outward heel ridge. Is located on the top of the sole, below the midsole of the heel. Therefore, such a wedge-shaped support member can be used for the sole of the present invention as shown in FIG. 34B. Such wedge-shaped support members are usually tapered toward the front of the shoe and are shaped to match the shape of the calcaneus and its ridges. If desired, the wedges can be formed integrally with and as part of a typical midsole heel.

The sole according to the invention is shown in FIGS.
As shown in (1), it can be manufactured by approximating the shape of the foot. In the proposed approximation shown in FIG. 35, the cross-section of the heel includes the upper surface 101 of the sole and an edge surface 104 of the sole that follows a theoretically ideal stable surface 51. An edge surface 104 of the sole terminates in a laterally extending portion 105 joined to a heel 106. The laterally extending portion 105 is made of a flexible material;
In addition, the lower surface 105a is configured to terminate at a theoretically ideal stable surface during deformation. Thus, the contour of the outer edge, when dynamic, will have approximately the shape described above as a result of the deformation of the portion 105. It is presently believed that controlled or programmed deformation can be generated by either of two techniques. In one technique, the sides of the sole, particularly at the midsole, are tapered or grooved so that when the sole of the sole is under pressure, it flexes inward to conform to the correct profile. be able to. The second technique uses an easily deformable material that is tapered on the side that deforms to the correct profile when under pressure. While such techniques provide a significant improvement in stability and natural motion over conventional designs, these techniques are inherently inferior to the contours obtained with simple geometric modeling. I have. Primarily,
The actual deformation is unnatural and must be generated by pressures that do not occur with bare feet, and secondly, given a particular running method and weight of the individual, sophisticated design and manufacturing techniques Even if
Only approximations are possible by deformation. Thus, the deformation process is limited in the first case to small acting forces that modify the contour from the surface approximating the ideal curve. Further, the theoretically ideal stability curve 51 can be approximately formed by a plurality of line segments 110 shown in FIG. 36, for example, tangent lines or chords. Although the single flat surface approximation removes most of the area outside the theoretically ideal stable surface 51, it can correct many of the biomechanical problems encountered in existing designs, One-sided approximation is not currently preferred because it is not the most optimal. By increasing the number of flat surfaces formed, as described above, this curve most closely approximates the ideal design profile.

FIG. 37 illustrates the basic concept underlying the present invention, ie, theoretically ideal for all kinds of efficient natural exercise including running, jogging or walking. 4 shows a vertical plane cross section of an ideal stable surface in the horizontal direction. For any particular individual (or individual's average size), the theoretically ideal stability surface is, first,
Left and right of the footprint 30b supporting the weight of an individual, defined by a given sole thickness (S), and secondly as the upper surface of the sole that physically contacts and supports the sole of the human foot; The direction is determined by the width of the vertical plane cross section. This theoretically ideal stability surface conceptually consists of two parts. The first part is a line segment 31b having a length equal to the footprint 30b at a certain distance (S) equal to the thickness of the sole and parallel to the footprint. This corresponds to a conventional sole just below a human foot. The second part is the first part, namely the edge 25 of the quadrant on each side of line segment 31b,
That is, it can be extended until it becomes a semicircle
This is a portion corresponding to 1/4 of a circle. The edge 25 of the quadrant is a radius (r) equal to the thickness (S) of the sole from the center of rotation 41, the outermost point on each side of line 30b.
have. In summary, the theoretically ideal stable surface is the essence of the present invention as it is used to determine the geometrically accurate sole profile of the sole. The present invention, in particular, claims patents relating to the just-determined geometric relationships just described. Any sole profile, including a similar quadrant profile beyond the theoretically ideal stability surface, will limit the natural movement of the foot, while a shoe profile that does not conform to any foot shape will have a natural stability Reduce the nature. However, modifications of certain of the definitions embraced by the above concepts may not be theoretical in the future, but may be made based solely on experience. In contrast to the rest of the foot, the definition of line 30b at the base of the human heel could be the width of very hard tissue (bone, cartilage, etc.) instead of a weight-bearing footprint. The reason is that the width of the heel is a geometrically effective pivot width where the heel of the shoe must be exactly equal for the shoe heel to pivot optimally with the human heel. For a typical male foot size of 10D, the heel width of the very stiff tissue is 1.75 inches versus 2.25 inches for the footprints that support the weight of the heel. Although not optimal, the assumption of a narrow heel width 30b or much less is also a preservation of the more traditional look, especially for higher heel shoes, and the stability and efficiency obtained by the present invention. Can be used in non-athletic commuting shoes to obtain a significant percentage of improvement. This is not a theoretical framework, but it is a problem that can be proven by experience. Until further empirical research is done, the optimal width of the heel must be based on assumptions. However, the optimal width of human heel pivoting, if possible, is a scientific matter that must be determined empirically, and the present invention claims an essential theoretical ideal. This is not a significant change in stability. Moreover, the narrower this definition is, the more important is the precise fit, and the problems associated with pronation control, for example, negating any advantage, occur due to the relatively small individual misalignment.

FIGS. 38A and 38B illustrate a sub-optimal, but intermediate approach to the sole structure, ie, a low cost approach. With this approach,
The insole and heel lift members 127 are manufactured in a conventional or near-method (the sides can be configured to match the shape of the foot, but at least
27 is left in a flat shape), while the bottom of the sole,
That is, the outer sole 128 includes most or all of the special features of the new design. This not only completely or almost restricts the special profile to the sole of the specially shaped sole, but also facilitates assembly. The reason is the insole 1
This is because the two flat surfaces at the bottom of 27 and at the top of the outer sole 128 can be combined together without difficulty than a surface that is otherwise shaped to the shape of the two feet. The advantage of this approach is that it presents a profile with a relatively soft midsole that offers the advantage of low wear and high traction for stability and easy deformation, while providing a relatively stiff foot It will be appreciated from the side of the contoured design of the foot shape illustrated in FIG. 38A that the contoured outer sole 128 exhibits good wear resistance to the weight bearing area. FIG.
B describes the concept applied to the heel of a conventional commuting shoe normally separated from the front of the foot by the area of the hollow instep below the main longitudinal ankle; Shown in the design. FIG. 39A shows the concept applied to a design having a quadrant side or a single plane in a lateral longitudinal plane cross section, and in FIG. 39A, the shadow 129 of the outer sole 128 has a relatively stiff outer surface. Fig. 3 shows the parts to be honeycombed (on the horizontal axis) to reduce the density of the sole to the density of the midsole material, thereby resulting in a relatively uniform density of the shoe. FIG. 40E shows an insole made to fit the shape of the foot in either one or two planar designs by limiting the side area to be combined with the basic support area described for FIG. Figure 7 shows the profile of an outer sole 128 made of a flat material that can be topologically matched with the outer sole 128; In this way, the surfaces of the midsole and the flat outer sole, which are shaped to the shape of the foot, can be satisfactorily joined by a precise fit, but this means that if all of the side areas are outside, If it is held on the sole, it is topologically impossible.

FIGS. 41A to 41C show an enhanced embodiment of the above-described embodiment of the present invention with a quarter-circle portion for stabilizing the side of the sole, in a longitudinal vertical section. The purpose of this design is to allow the sole to easily pivot from side to side with the foot 90, as described above, thereby following the natural pronation and supination of the foot. In the conventional design shown in FIG. 41A, such foot movement is constrained to occur within the upper portion 21 of the shoe, thus constraining the foot movement. This enhancement is to accurately position and stabilize the foot, especially the heel, relative to the preferred embodiment of the sole, thereby facilitating the response of the sole to the natural movement of the foot. is there. Correct positioning is essential to the present invention, especially when heels are used that are very narrow or defined as "hard tissue." Inaccurate relative position or relative position movement can reduce the effective thickness of the quadrant to the inherent efficiency and stability of the side quadrant design by reducing the effective thickness of the sole 28b below the thickness of the sole 28b. Lower. FIG. 41B and FIG. 41C
As shown, the stabilizing medial side, which is shaped to the shape of the foot, correctly aligns the pivotal edge 31 of the sole that bears weight to directly contact the flat upper surface of the conventional sole 22. When the shoe is held in position, thereby causing the shoe to be spun or spun to follow the theoretically ideal stabilizing surface 51, the thickness (S) of the shoe sole becomes a quadrant stabilizing side. At 26, a constant thickness (S) is maintained. The form of reinforcement is the stabilizing side 131 of the inner sole, which follows the natural contour of the heel side 91 of the foot 90, thereby receiving the heel of the foot into the cup.
The inner stabilizing side 131 can be placed directly on the upper surface of the sole and heel profile, or just below (or integral with) the midsole of the shoe or somewhere in between. it can. The inner stabilizing side is similar in construction to the heel cup member integrally formed in the midsole, which is now commonly used, but compared to a typical midsole sole Stiffer, but differ in the density of materials that are not as flexible as the midsole. This difference is due to the fact that the inner stabilizing side has a higher relative density, such as the relative density at the center of the uppermost sole, so that the inner stabilizing side is It is not a protection against moderate cushioning and friction, but rather a structural support of the foot acting as part of the sole. But in a broad sense,
The insole is slip-lasted shoes
The bottom of the upper part of the shoe or the board of the board (b) that bears the board
As in the case of a shoe material, as in the case of shoe material between the foot and the ground, it should be considered structurally and functionally as part of the sole. Reinforcement of the inner stabilizing side is necessary when converting an existing conventional sole 22 embodiment constructed in the prior art into an effective embodiment of the side stabilizing quadrant 26 of the present invention. Particularly useful. This feature is important in the construction and initial production of the prototype of the present invention as well as the ongoing low cost production method. The reason is that such production is very close to existing technology. Reinforcement of the medial stabilization side is most essential when cupping the sides and back of the heel of the foot, and therefore
Essential at the upper edge of the sole 27 of the sole, it may extend around all or any portion of the upper edge of the remaining sole. However, the size of the inner stabilizing side should taper downward in proportion to the decrease in thickness of the sole in the longitudinal plane.

FIGS. 42A to 42C show, in a longitudinal vertical section, the same inner sole sole stabilization side applied to the previous embodiment of the design having sides shaped to the shape of the foot. Show. This reinforcement positions and stabilizes the foot with respect to the sole, and FIGS. 42B and 42C
As shown in FIG.
Maintain a constant sole thickness (S) of a. FIG. 42A shows a conventional design. The inner sole-stabilizing side 131 matches the natural contour of the foot side 29 which determines the theoretically ideal stable surface 51 for the sole thickness (S). Other features of this reinforcement as applied to the sole-side embodiment formed to the shape of the foot are the same as those described for the side-stabilizing quadrant embodiment with respect to FIGS. 41A-41C. It is. From the comparison of FIGS. 42C and 41C, it can be seen that the different approaches, that is, using the quadrant side and using the foot shaped side, use the inner stabilizing side 131. By doing so, several similar shoe sole embodiments are obtained. Both approaches are essentially low-cost, i.e., adapting the production of shoes from existing conventional "flat sheets" to the design of the shoes made to fit the shape of the foot described in the preceding figures. , Provide an intermediate way.

Thus, it will be apparent to those skilled in the art that the above description has been described in terms of a preferred embodiment, and that various changes and modifications may be made without departing from the scope of the invention as defined by the appended claims. It will be easily understood.

[Brief description of the drawings]

FIG. 1 is a perspective view of a typical running shoe known in the prior art to which the present invention can be applied.

FIG. 2 (2A) is a conventional shoe having a shoe sole protruding laterally. (2B) This is a conventional shoe having a shoe sole protruding laterally. (2C) A conventional shoe having a narrow shoe sole. (2D) This is a conventional shoe having a narrow shoe sole.

FIG. 3 is a lateral vertical sectional view showing a sole having a uniform thickness conforming to a natural shape of a human foot, that is, a novel shoe according to the present invention.

FIG. 4A is a stabilizing side according to the present invention. (4B) Sole to which the stabilizing side is applied. (4C) Stabilization side applied to the sole of the shoe. (4D) Foot contour and recommended shoe sole contour.

FIG. 5 (5A) is a diagram showing the relationship between the thickness of the shoe sole and the side portion for stabilization. (5B) It is a figure which shows that the thickness of the stabilization side part also increases with the increase in the thickness of a shoe sole.

FIG. 6 is a side view of a novel stable shape shoe according to the present invention, showing a side design adapted to the shape of the foot.

FIG. 7A is a cross-sectional view of a portion of the shoe corresponding to the front of the foot taken along line 7A-7A of FIG. (7B) It is the figure which cut FIG. 6 and FIG. 7 along the 7B-7B line. (7C) It is sectional drawing which cut | disconnected FIG. 6 and FIG. 7 along the 7C-7C line. (7D) It is a bottom view of the shoe sole shown in FIG.

FIG. 8 compares a conventional overhanging sole of the prior art with a sole designed to the shape of the foot according to the invention.

FIG. 9A is a neutral state of the shoe sole according to the present invention. (9B) Pronation or supination state of the shoe sole according to the present invention. (9C) Extreme pronation or supination state of the sole according to the present invention.

FIG. 10 (A) is a view showing a response to rotation of a shoe sole according to the present invention. (10B) It is a figure showing correspondence to rotation of the sole of the conventional example.

FIG. 11A is a front-rear vertical cross-sectional view of a conventional shoe sole to which the present invention can be applied. (11B) It is front-back direction longitudinal plane sectional drawing of the shoe sole of the conventional example which can apply this invention. (11C) It is front-back direction longitudinal plane sectional drawing of the shoe sole of the conventional example which can apply this invention. (11D) It is front-back direction longitudinal plane sectional drawing of the shoe sole of the conventional example which can apply this invention. (11E) It is front-back direction longitudinal plane sectional drawing of the shoe sole of the conventional example which can apply this invention.

FIG. 12 (12A) is a cross-sectional view showing a state where the tip of the contour of the side of the sole of the present invention has been cut. (12B) It is sectional drawing which shows the state which cut | disconnected the front-end | tip of the profile of the side part of the shoe sole of this invention. (12C) It is sectional drawing which shows the state which cut | disconnected the front-end | tip of the outline of the side part of the shoe sole of this invention. (12D) It is sectional drawing which shows the state which cut | disconnected the front-end | tip of the outline of the side part of the shoe sole of this invention.

FIG. 13 (13A) is a view in which a known tread is formed on the sole of the present invention. (13B) It is the figure which formed the well-known tread on the sole of the present invention. (13C) It is the figure which formed the well-known tread on the shoe sole of the present invention.

FIG. 14 is a rear view exemplifying a state in which the shoe sole according to the present invention is applied to a shoe so as to obtain an aesthetically pleasing and functionally effective design.

FIG. 15 shows a design of a sole that is safely shaped to conform to the shape of the foot, consistent with the natural shape of the soles and sides.

FIG. 16 shows the position of static forces acting on the heel joint during normal pronation and supination and extreme pronation and supination and on the sole according to the invention. FIG. 4 is a schematic left-right vertical plane cross-sectional view.

FIG. 17 is a diagrammatic left-right longitudinal plan view of the instantaneous curves of a plurality of centers of gravity for various degrees of pronation of the sole according to the invention, in contrast to the movement shown in FIG. 2;

FIG. 18A is a schematic view of a conventional example including a human foot. (18B) A schematic view of the present invention including human feet.

FIG. 19A is a cross section of a shoe sole of the present invention supporting a body weight, taken along a vertical plane in the left-right direction. (19B) is a cross-sectional view of the shoe sole of the present invention supporting weight, taken along a vertical plane in the left-right direction. (19C) A cross section of the shoe sole of the present invention that supports weight, as viewed in the left-right vertical plane. (19D) is a cross-sectional view of the shoe sole of the present invention supporting weight, taken along a vertical plane in the left-right direction. (19E) is a cross section of a shoe sole of the present invention supporting a weight, taken along a horizontal plane in the longitudinal direction. (19F) The bottom surface of the shoe sole of the present invention that supported the weight.

FIG. 20 (20A) is a cross section of the sole of the present invention which has not yet supported the weight, taken by a vertical plane in the left-right direction. (20B) is a cross-sectional view of the shoe sole of the present invention that has not yet supported weight, as viewed in the left-right vertical plane. (20C) A cross section of the sole of the present invention that has not yet supported the weight, taken by a vertical plane in the left-right direction. (20D) is a cross-section of the sole of the present invention that has not yet supported the weight, as viewed in the left-right vertical plane. (20E) A cross section of the sole of the present invention that has not yet supported the weight, taken along the longitudinal horizontal plane.

FIG. 21 is a sole of the present invention fully contoured only on the sides of the essential structural and propulsion elements. In this figure, each section of 20A, 20B, 20C, 20D is
20A, 20B, 20C, and 20D in FIG.

FIG. 22 (22A) is a cross section applied to a shoe for commuting a shoe sole according to the present invention. (22B) is a cross section applied to a shoe for commuting to a shoe sole according to the shape of the foot according to the present invention.

FIG. 23 shows how to establish a theoretically ideal stable surface using a method that uses perpendiculars to tangents.

FIG. 24 shows a method based on the radius of a circle for establishing a theoretically ideal stable surface.

FIG. 25 (25A) is an embodiment of the present invention which becomes an ideal stable surface by being deformed during use. (25B) This is an example of the present invention in which an ideal stable surface is obtained by deforming during use.

FIG. 26 is a diagram showing an embodiment in which the contour of the shoe sole according to the present invention is approximated by a plurality of line segments.

FIG. 27 illustrates one embodiment in which the stable side is determined geometrically as part of a ring.

FIG. 28 (28A) is a cross-sectional view of a sole connected with only a non-stretchable cloth, taken along a longitudinal horizontal plane. (28B) It is sectional drawing by the longitudinal horizontal plane of the shoe sole connected by the thin upper layer. (28C) It is a bottom view of the design which gives flexibility.

FIG. 29A is a schematic diagram of a shoe sole according to the present invention. (29B) A schematic diagram of a shoe sole according to the present invention. (29C) A schematic diagram of a shoe sole according to the present invention.

FIG. 30 (30A) is a schematic view of the bottom and side of the shoe sole of the present invention. (30B) It is a schematic diagram of the bottom part and the side part of the shoe sole of the present invention.

FIG. 31 is a side cross-sectional view of the side of a quadrant sole showing how the sole maintains a constant distance from the ground during rotation of the edge of the shoe.

FIG. 32A is a view showing how to reduce the overhang of the side portion of the shoe sole according to the present invention. (32B) It is a figure which shows how to reduce the overhang of the side part of the shoe sole of this invention. (32C) It is a figure which shows how to reduce the overhang of the side part of the shoe sole of this invention.

FIG. 33A is a cross-sectional view of a conventional commuting shoe taken along a horizontal plane. (33B) is a diagram showing the relationship between the conventional example and the sole of the present invention. (33C) is a cross-sectional view of a commuting shoe according to the present invention, taken along a lateral plane.

FIG. 34 is a schematic rear view showing the relationship between the heel ridge of the foot and the use of a wedge in the shoe of the present invention.

FIG. 35 illustrates another embodiment of the present invention in which the sole structure deforms during use to follow a theoretically ideal stability surface during deformation.

FIG. 36 is a view showing an embodiment in which the contour of the shoe sole according to the present invention is approximated by a plurality of chord portions.

FIG. 37 is an illustrative view showing a theoretically ideal stable surface.

FIG. 38 (38A) is an embodiment of the present invention in which the outer shoe sole has abrasion resistance. (38B) Shows the side of the heel of the sole of the present invention applied to commuting shoes.

(39A) Another example of the shoe sole of the present invention applied to a commuting shoe. (39B) Another example of the shoe sole of the present invention applied to commuting shoes.

FIG. 40 is a bottom view of another example of the shoe sole of the present invention.

FIG. 41 (41A) is a conventional example provided with the upper side of a shoe. (41B) Comparison of the present invention with the upper side of the shoe and the conventional example. (41C) The present invention and examples with the upper side of the shoe.

FIG. 42 (42A) is a conventional example provided with an upper side of a shoe. (42B) Comparison of the present invention with the upper side of the shoe and the conventional example. (42C) An embodiment of the invention with a shoe upper.

FIG. 43 is a diagram showing a spatial positional relationship of a plane or the like described in this specification.

FIG. 44A is a top view showing portions on the skeleton of the foot described herein. (44B) It is a bottom view showing the part on the skeleton of the foot described in this specification.

[Explanation of symbols]

21: Upper part of shoe, 22: Sole (conventional example), 27 ...
Foot, 28 ... Sole of the present invention (the present invention).

────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-57-139333 (JP, A) JP-A-59-23525 (JP, Y2) JP-A-45-5154 (JP, Y1) US Patent 4,449,306 (US , a) United States Patent 4128951 (US, a) United States Patent 4694591 (US, a) (58 ) investigated the field (Int.Cl. ^7, DB name) A43B 1/00 - 23/30

Claims (59)

(57) [Claims] 1. A shoe sole, such as athletic shoe, including: the insole element (127) and outsole element (128); fruit heel position when the wearer's foot (27) is located inside the shoe
Sole heel area in qualitatively corresponding position; front position of foot when wearer's foot (27) is inside shoe
Front sole area in a position substantially corresponding to the heel and foot of the foot when the wearer's foot (27) is inside the shoe.
The midsole of the sole in a position substantially corresponding to the area between the fronts
Area: The sole heel area is located on the outer ridge of the calcaneus of the wearer's foot.
Having an outer heel portion in a substantially corresponding position, and wearing
Heel at a position substantially corresponding to the base of the calcaneus
A middle portion of the sole, the base region of the fifth metatarsal of the wearer's foot
Having an outer intermediate portion at a position substantially corresponding to
Mainly in a position substantially corresponding to the longitudinal bow of the user's foot
A longitudinal bow, wherein the anterior sole region is located on the head of the wearer's first distal phalanx;
Has a front outer front part in a qualitatively corresponding position, and is worn
In the head of the middle metatarsal and the head of the metatarsal of the elderly
Rear center front and rear outer front at corresponding locations
The sole side outside side (28a), the sole center side (28
a), and the sole outer side part (28a) and the sole center side
Middle part side part (28b) located between the parts (28a), central heel part, outer heel part, front center front part, rear center side
Front, rear outside front, outside middle, and main longitudinal direction
At or near one or more locations on the bow
At least one rounded part of the sole (28)
And each rounded portion includes: a) the lateral direction when the sole (28) is upright and unloaded.
As seen in the longitudinal plane section, the outer surface (30) of the sole (28)
The concave portion, the concave portion, is the concave portion of the sole outer surface (30).
From the inside of the sole (28) immediately adjacent to the part
Yes, b) Left and right when sole (28) is upright and in no-load condition
Seen in the vertical plane section, the convex part of the inner surface of the insole element, this
The convex shape means that the convex inner surface of the insole element (127) is directly
C) the upper part of the outer midsole surface of the midsole element (127) as viewed from the adjacent midsole element (127) ;
Left and right vertical plane when bottom (28) is upright and no load
Viewed in cross section, the most recent of the inner surface of the insole element (127)
Extending beyond the lowest point of the outer portion, each said concave surface of the outer sole surface (30) is such that the sole is upright and
When there is no load, look in the vertical plane in the horizontal direction, and
(30) the series of at least three adjacent substantially
It is formed by a straight part (110), at least a part of the middle part of the sole has an upright sole and no load.
When in the state, looking in the longitudinal vertical cross section of the sole,
The bottom of the outer sole surface (30) and the outer surface of the sole in front of the sole
It should have a push in between the bottom of the face (30).
When. 2. The sole of an athletic shoe or the like, including: an insole element (127) and an outsole element (128); when the wearer's foot (27) is inside the shoe,
Heel portion of the sole in a position substantially corresponding to the position; front of the foot (27) when the wearer's foot (27) is in the shoe
Front of the sole in a position substantially corresponding to the heel of the foot (27) when the wearer's foot (27) is in the shoe.
In the sole in a position substantially corresponding to the area between the front
Intermediate portion; the sole heel region is substantially at the outer ridge of the calcaneus of the wearer's foot
Heel of the wearer's foot and the outer heel at the corresponding position
The central heel at a position substantially corresponding to the base of the bone
And the midsole region is located at the base of the fifth metatarsal of the wearer's foot.
Qualitatively corresponding outer middle part and wearer's foot
Main longitudinal position at a position substantially corresponding to the longitudinal bow of the
A forward bow region ; the anterior sole region is located on the head of the first distal phalanx of the wearer's foot.
Position the front center side front part qualitatively corresponding to the wearer's foot
A position substantially corresponding to the head of the medial and outer metatarsal bones
A rear center side and a rear outer front portion; a sole outer side, a sole center side (28a), and a sole.
Located between the outer side side portion and sole in Hisashigawa side (28a)
Sole middle part (28b); central heel, outer heel, front central front, rear central
Front, rear outside front, rear center front, outside middle
Part, and one or more positions of the main longitudinal bow
Or at least one concave rounded part nearby
Having at least one concavely rounded portion,
Includes the following: a) When the sole is upright and in a no-load condition, a vertical plane in the left-right direction
The concave shape of the outer surface (30) of the sole (28) as seen in cross section
Part, this concave part is directly connected to this concave part of the sole outer surface (30).
B) when viewed from the inside of the sole (28) adjacent to the floor, and b) when the sole is upright and in a no-load state, a horizontal vertical plane.
Seen in the convex part of the inner surface of the insole element (127), this convex
Shape is immediately adjacent to this convex inner surface of the midsole element (127).
Viewed from the part of the insole element (127) that touches,
And c) when the sole (28) is upright and in a no-load state,
Outer midsole table of midsole (127) as seen in the vertical vertical section
The upper part of the surface is the latest outermost of the inner surface of the midsole (127)
Extending beyond the lowest point of the sole ; each said recess of the sole outer surface (30) is
0) Outer sole outside adjacent to one concavely rounded part
A series of at least two adjacent straight sections of the face (30)
(110) formed by a combination of
Is the horizontal direction when the sole (28) is upright and no load
Looking into the longitudinal plane section, this concave shape of the sole outer surface (30)
From the inside of the sole (28) immediately adjacent to the rounded part
Visible and soles (28) are upright and unloaded
When in the state, all are seen in the longitudinal vertical cross section,
In both cases, the middle area of the sole is the sole outer surface (3
0) and the outer sole surface (30) of the front part of the sole
Include a push into the straight line between the lowest point. 3. Soles, such as athletic shoes, including: an insole element (127) and an outer sole element (128); the wearer's foot (2) when the wearer's foot (27) is in the shoe.
7) The heel area of the sole at a position substantially corresponding to the position of the heel
Area; wearer's foot (2) when the wearer's foot (27) is in the shoe
7) The sole front part at a position substantially corresponding to the front part
Area; wearer's foot (2) when wearer's foot (27) is in shoes
7) a position substantially corresponding to the area between the heel and the front of the foot;
Mid- sole area at the foot ; heel area of the sole is substantially at the outer ridge of the calcaneus of the wearer's foot
Heel of the wearer's foot and the outer heel at the position corresponding to the
The central heel at a position substantially equivalent to the base of the bone
And the midsole region is located at the base of the fifth metatarsal of the wearer's foot.
The qualitatively equivalent outer middle part and the wearer's foot
Main longitudinal position substantially corresponding to the longitudinal bow of the
A directional bow, wherein the anterior sole region is mounted on the head of the first distal phalanx of the wearer's foot
Qualitatively equivalent to the front center side front part and the wearer's
Substantially corresponds to the medial and lateral metatarsal heads of the foot
At the rear center front and rear outer front.
The sole outer side (28a), the sole center side, and the sole
It is located between the outer side (28a) and the shoe sole center side.
In addition, the middle part of the sole (28b); central heel, outer heel, front center front, rear center
Front, rear outside front, outside middle, and main longitudinal direction
At or near one or more of the bows
The sole outer side (28a) or the sole center side (2
8a) at least one sole side located at 8a),
These at least one sole side includes: a) the lateral direction when the sole (28) is upright and unloaded.
As seen in the longitudinal plane section, the outer surface (30) of the sole (28)
A concave portion, which is the concave portion of the sole outer surface (30)
Viewed from the inside of the sole (28) immediately adjacent to the
Ri, b) when the shoe sole (28) is upright and unloaded condition, the left-right direction
As seen in the longitudinal plane section, the convexity of the inner surface of the insole element (127)
Shape, this convex shape means the convex shape of the insole element (127).
As viewed from the immediately adjacent midsole element (127)
And c) the upper part of the outer midsole surface of the midsole element (127)
When the bottom (28) is upright and unloaded, the midsole element (12
7) extending beyond the lowest point of the most outermost part of the inner surface
A concave portion of the outer sole surface (30) is provided with a middle portion (28) of the sole ;
b) a concavely rounded portion of the sole outer surface (30 );
At least one of the outer surfaces (30) of the midsole (28b)
Sole outer surface (3) adjacent to two concavely rounded sides
0) at least one substantially straight portion (110);
And the concave shape is
When the sole (28) is upright and in a no-load state, the horizontal direction is vertical
This concave shape of the sole outer surface (30) looks
From the inside of the sole (28) immediately adjacent to the part
And at least part of the midsole area
When the sole (28) is upright and no load,
The sole outer surface of the heel part of the sole (3
0) and the bottom of the outer sole surface (30) at the front of the sole
Include push-in for straight line between. 4. The concave portion of the outer surface of the sole (30) comprises a sole.
When (28) is upright and in a no-load state, the vertical plane is cut in the left-right direction.
When viewed in the plane, it extends to the middle of the sole (28b).
The shoe sole according to claim 1 or 2. 5. The method according to claim 1, wherein the concave portion of the outer surface of the sole is provided on the sole.
When (28) is upright and in a no-load state, the vertical plane is cut in the left-right direction.
Looking in the plane, it extends to the center line of the middle part (28b) of the sole
The sole (2) according to any one of claims 1 to 4,
8). 6. The sole of the sole outer surface (30) has a concave portion.
When (28) is upright and in a no-load state, the vertical plane is cut in the left-right direction.
As viewed in the plane, the sole outer surface (3
0) At least on each side of the concavely rounded part
4. The method according to claim 3, comprising one substantially straight section (110).
The shoe sole described. 7. The concave portion of the sole outer surface (30) has a sole
When in an upright and no-load condition, look in the vertical
And the concave shape of the outer sole surface (30) of the middle sole part (28b)
At least one side of the rounded part
3. The method of claim 3, further comprising two substantially straight portions.
Is the shoe sole according to 6. 8. The concave portion of the outer surface (30) of the sole has a sole
When in an upright and no-load condition, look in the vertical
And the concave shape of the outer sole surface (30) of the middle sole part (28b)
At least two substantially on each side of the rounded part
8. A device according to claim 6, comprising a straight section (110).
Shoe sole. 9. At least one substantially straight section
When the sole is upright and no load is applied,
9. The method of claim 3, 6, 8 or 9, wherein the lens is substantially vertical when viewed in a plane.
The shoe sole according to any one of the above. 10. The midsole element (127) of the midsole area.
When the sole (28) is upright and unloaded,
As seen in the longitudinal vertical section,
Concave is immediately adjacent to this concave inner surface of the midsole element (127)
Claim, as seen from the part of the sole (28) in contact
Item 14. The shoe sole (28) according to any one of Items 1 to 9. 11. An insole element (12) located in the middle of the sole.
7) Substantially all of the inner surfaces have soles (28) upright
When there is no load, when viewed in the longitudinal vertical cross section,
And the concave is defined as the inside of the concave of the insole element (127).
From the part of the sole (28) directly adjacent to the surface
The shoe sole according to claim 10. 12. An insole element (127) having an inner surface,
Is upright and in a no-load condition,
Is concave and round, and this concave shape is the insole element
(127) sole (2) immediately adjacent to this concave inner surface.
12. The method according to claim 10 or 11, which is viewed from the part of 8).
On the shoe sole. 13. An outer sole surface (30) in the middle region of the sole.
Is in the vertical plane in the front-rear direction when the sole is upright and no load
As seen in the figure, the projection further includes a convex portion.
Of the sole (28) immediately adjacent to the convexity of the outer surface (30)
13. Any of claims 1 to 12, as viewed from the inner surface
Shoe sole described in the above. 14. The method according to claim 1, wherein the substantially entire region located in the mid-sole region.
The sole outer surface (30) has an upright sole and no load
When viewed in a vertical plane in the front-rear direction, it is convex, and this convex
Is immediately adjacent to this convex portion of the sole outer surface (30)
14. The shoe sole (28) as viewed from the inside.
On the shoe sole. 15. The sole of the sole outer surface (30) has a convex portion.
When (28) is upright and in a no-load state, in the longitudinal vertical plane
As seen in the figure, the shape is convex and round,
Sole (28) immediately adjacent to this convexity of the surface (30)
The method according to claim 13 or 14, which is viewed from the inside of the device.
Shoe sole. 16. The shoe according to claim 16, wherein said substantially straight portion is a shoe.
When the bottom is upright and there is no load, look in the vertical
Te, claim located sole side (28a) 1 to 15
The sole according to any one of the above. 17. The sole (28) is located in front of the sole in the heel area of the sole.
The thickness of the sole is larger than the area of the sole.
A first point on the inner surface of the element (127) and an outer surface of the sole (3
0), the distance between the second point and the second point,
The second point is that the sole (28) is in an upright and unloaded state.
When viewed in the vertical plane in the left-right direction,
A straight line perpendicular to a straight line tangent to the inner surface of the bottom element (127)
17. A method as claimed in any one of claims 1 to 16, wherein the device is located along a line.
The described sole (28). 18. The inside surface of the insole element (127) and the outside of the sole.
The thickness between the surface (30) and each of the recesses of the sole (28)
Shoes in the vertical vertical plane cross section at the position of the ridge
From the thickness at the highest part of the bottom side (28a),
Of each of the shoe sole side portions (28a) in the vertical vertical plane cross section.
It gradually increases to the position below the highest part,
The thickness is determined by a first point on the inner surface of the insole element (127) and the shoe.
The distance between the second point of the bottom outer surface (30)
The second point is that the sole (28) is upright and free of load.
In the state, when viewed in the vertical vertical plane cross section,
At the point tangent to the inner surface of the insole element (127)
18. A method according to claim 1, which is located along a straight line perpendicular to the line.
A shoe sole according to any of the above. 19. Thickness of all soles (28)
When there is no load, look in the cross section inside the vertical plane
From the outer sole surface (30) extending from the center line of the sole (28)
Shoe on one or more of the highest parts of the resulting sole side
The bottom outer surface (30) and the inner surface of the midsole element (127)
19. The sole according to claim 18, wherein the distance between them increases. 20. One or more of the tops of the sole side
Of the sole outer surface (30) and the insole element (127) at
The thickness between the inner surface and the sole is upright and no load
At the time, when viewed in the left-right vertical cross section, the sole (28a)
Claims increasing from the top to the outermost side of the same sole side
Item 21. The shoe sole according to any one of Items 18 to 20. 21. One or more of the highest portions of the sole side
Of the sole outer surface (30) and the insole element (127) at
The thickness between the inner surfaces increases gradually and substantially continuously.
The shoe sole according to any one of claims 18 to 20, wherein: 22. A concave portion of the sole outer surface (30) is formed.
Each of the straight parts that make up, the sole is upright and no load
At the time of
22. The method according to claim 1, wherein the angle is larger than 0 degree and smaller than 90 degrees.
The sole according to any one of the above. 23. A convex portion on the inner surface of the midsole element (127).
One or more of the soles are upright and unloaded
When viewed in a vertical plane cross section in the left-right direction, it is convexly rounded
A shoe sole according to any one of the preceding claims. 24. A convex portion on the inner surface of the midsole element (127).
One or more of the soles (28) are upright and unloaded
In the state, one or more of the heel region and the middle region
Looking at the vertical cross section in the horizontal direction, at least two
Formed by a substantially straight portion (110)
A shoe sole according to any one of claims 1 to 22. 25. The sole (28) includes only one concave part.
The shoe sole according to any one of claims 1 to 24. 26. One concave portion of the sole (28) is
25. A bottom outer side portion (28a).
Shoe sole (28) according to any one of the preceding claims. 27. One concave part of the sole (28) is
25. The method according to claim 1, wherein the base is located on the bottom central side portion (28a).
The shoe sole according to any one of the above. 28. The sole (28) is at least two concave.
One of which is located on the outer side (28a) of the sole,
One or two is a sole side part (28a) of a sole.
4. The shoe sole according to any one of 4. 29. The two recesses of the sole (28) are identical.
29. The shoe sole according to claim 28, wherein the shoe sole is located within a vertical cross section in the left-right direction. 30. The two concave portions of the sole (28)
In the left and right vertical plane section taken in the rear front area
29. The sole of claim 28. 31. The two concave portions of the sole (28) are
Claims are in the horizontal vertical section taken in the heel region
28. The shoe sole according to 28. 32. The two concave portions of the sole (28)
The contract in the horizontal vertical plane section taken in the middle area
29. The sole of claim 28. 33. The sole (28) comprises two recesses.
A shoe sole according to any one of claims 1 to 24. 34. The sole (28) includes three recesses.
A shoe sole according to any one of claims 1 to 24. 35. The sole (28) includes four recesses.
A shoe sole according to any one of claims 1 to 24. 36. The sole (28) includes five concave portions.
A shoe sole according to any one of claims 1 to 24. 37. The sole (28) includes six recesses.
A shoe sole according to any one of claims 1 to 24. 38. The sole (28) comprises seven recesses.
A shoe sole according to any one of claims 1 to 24. 39. A rear outer front portion and a rear central front portion.
25. Any of the preceding claims, including a concave portion located therebetween.
Sole (28) according to one. 40. Outer ridge of the calcaneus and posterior outer front
25. Any of the preceding claims, including a concave portion located in the portion.
Sole (28) according to one. 41. Each concave portion of the sole outer surface (30) comprises:
When the sole (28) is upright and in a no-load state, the horizontal direction is vertical
Extending to the outermost limit on the side of the sole
A shoe sole according to any one of the preceding claims. 42. Each concave portion of the sole outer surface (30) comprises:
When the sole (28) is upright and in a no-load state, the horizontal direction is vertical
As seen in the plane section, it extends to the bottom of the sole side (28b)
A sole according to any one of the preceding claims. 43. Each recess of the outer sole surface (30) is
Left and right vertical plane when bottom (28) is upright and no load
See in the cross section, pass through and beyond the bottom of the sole side
42. A shoe as claimed in any one of the preceding claims, wherein the shoe extends.
bottom. 44. The concave portion of the outer surface of the sole (30) comprises:
When (28) is upright and in a no-load state, the vertical plane is cut in the left-right direction.
When viewed in the plane, it extends beyond the outermost limit of the sole side
A shoe sole according to any one of the preceding claims. 45. The concave portion of the outer surface (30) of the sole comprises a sole.
There when upright and unloaded state, viewed in the lateral direction vertical plane cross-section
And the same sole side (28a) is connected to the insole element (12).
7) At least the lowest point of the latest outermost part of the inner surface
41. Any one of claims 1 to 40, which extends to the bell
The shoe sole described. 46. The concave portion of the outer sole surface (30) comprises a sole.
When it is upright and in a no-load condition,
The sole side (28a) of the inner sole element (127)
Extends beyond the height of the lowest point of the most outermost part of the face
A shoe sole according to any one of claims 1 to 40. 47. The recessed portion of the sole outer surface (30) comprises a sole.
When (28) is upright and in a no-load state, the vertical plane is cut in the left-right direction.
As viewed in the plane, it extends to the highest part of the sole side.
40. The shoe sole according to any one of 40. 48. The sole at the rearmost part of the sole heel region (28).
On the outer surface (30), the sole (28) is upright and unloaded.
At this time, when viewed in the longitudinal vertical section,
A shoe sole according to any one of claims 1 to 47. 49. An inner surface of the sole at the rearmost part of the heel region of the sole.
(31) is the longitudinal direction when the sole is upright and no load
When viewed in the vertical plane cross section, it includes one convex part,
Is the shoe directly adjacent to this protrusion on the inner sole surface (31).
49. Viewed from the bottom (28).
Soles. 50. A midsole element (1) at the rearmost part of the sole-heel region.
27) The highest part is when the sole is upright and no load,
Inside the sole behind the heel area of the sole, as seen in the rear vertical plane section
Claims extending beyond the lowest point level of the surface (31)
Item 50. The shoe sole according to Item 49. 51. The inner midsole surface has a sole (28) standing upright.
When there is no load, the actual
Claims that qualitatively conform to the shape of the wearer's foot (27).
The shoe sole according to any one of 1 to 50. 52. Two adjacent surfaces of the sole outer surface (30).
In addition, the substantially straight portion (110) has a sole (28).
When upright and unloaded, one or more heel areas and
Outside the sole of the shoe
Sole (28) immediately adjacent to each recess of the surface (30)
An obtuse angle is formed between the straight portions (110) with respect to the inner surface of
The shoe according to any one of claims 1 to 51, wherein
bottom. 53. A convex portion on the inner surface of the midsole element (127).
Two adjacent straight sections of the sole (28) are upright
One or more heel areas and mid when unloaded
The outer surface of the shoe sole (3
0) the portion of the sole (28) immediately adjacent to each recess
The obtuse angle between the straight portions (110)
The shoe sole of claim 52. 54. Two different types of outer sole surface (30).
The two substantially straight portions (110) of the pair are
8) One or more heels when upright and unloaded
Seen in the longitudinal vertical section of the area and the middle area,
The sole (2) immediately adjacent to each recess of the outer sole surface (30)
Regarding the interior of 8), an obtuse angle is formed between the straight portions (110).
The sole (2) of any one of claims 1 to 53,
8). 55. A convex portion on the inner surface of the midsole element (127).
The two linear portions (110) of the two different pairs of
One or two soles (28) when upright and unloaded
In the left-right vertical plane cross section of the above heel area and intermediate area
As seen, the shoe immediately adjacent to each recess of the sole outer surface (30)
For the bottom (28), make an obtuse angle between the straight parts
55. The sole of claim 54, wherein 56. The concave shape of the outer sole surface (30) is a single toe.
56. A red pattern according to any one of claims 1 to 55.
Soles. 57. The outer side (28a) of the sole of the shoe is located on the outer side.
Including the outermost part, and the center side (28a) of the sole is the center
Side outermost portions, each of which has a sole (28)
When there is no load, the shoe sole is
On the outermost part of the inner surface (31) of the sole (28).
Outside the vertical line extending through the sole (28)
And the insole element (127) comprises a sole (28).
When it is upright and in a no-load condition,
The sole side (2) at each of the rounded portions
56. Any of claims 1 to 55 extending to the outermost portion of 8a).
The sole according to any one of the above. 58. Each recess of the outer sole surface (30) is
Left and right vertical plane when bottom (28) is upright and no load
Seen in cross-section, forming the lowermost side of sole outer surface (30)
The shoe sole according to any one of claims 1 to 57, wherein the sole is provided. 59. The sole outer surface (30) comprises a sole (28).
Extending substantially through the midsole (28 ) of the sole
Outer surface of sole (30), including horizontal portion of line
The above-mentioned concave portion has a sole (28) in an upright and no-load state.
When viewed in the vertical plane cross section in the horizontal direction, the sole outer surface (30)
Located adjacent the end of said substantially straight, horizontal portion of
A shoe sole according to any one of claims 1 to 57.