JPH025903A - Sports shoes and making thereof - Google Patents

Abstract

PURPOSE: To prevent the ankle or the knee from being damaged by restrain caused by excessive reaction to applied force by providing a shoe with a heel cover part made into an integrated article from the previously molded members of parts and with an anatomically proper improved form. CONSTITUTION: A hard star wrap member 30 of a shoe 10 has a pair of previously molded, anatomically proper and almost parallel side parts 32 and 34, and these parts exist on the confronted side faces of the shoe and extended downward to a sole 14 and toward the rear part. A pair of side face expanded elements 40 for fixture are extended from a lower terminal part 38 of the star wrap member 30 at the respective positions of the side parts 32 and 34. The sidewall of the star wrap member 30 is anatomically bent, namely, bent outward in the shape of arc and matched with the form of a foot. An intermediate part and the side part 34 are not mirror images but the respective side faces are respectively formed anatomically coincident with the forms of respective side faces of the foot. Similarly, a side terminal part 33 of the side face 34 is extended a little in front of the side part 32, made adaptive to wide width by the lateral side of the shoe and made correspondent to the movement of the foot.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to sports, particularly tennis.

BACKGROUND OF THE INVENTION Tennis and other active sports require quick reactions when stopping, turning, and making lateral movements on the court.

These movements place severe forces on the bones, ligaments, and muscles of the foot. When a certain force is applied to the foot, the navicular bone of the foot rotates around the longitudinal axis of the foot, attempting to collapse the arch. Forces are also applied to the navicular bone and associated joints. The muscles of the foot and the legs work in a countervailing manner, which causes fatigue and ankle or knee problems due to strain caused by the muscles responding too much to the applied forces.

In the past, sports supporting straps
), or other reinforcing or flexible members. However, conventional reinforcing members are not and have not been configured to support the navicular bone and joint. As a result, conventional reinforcement members are ineffective or even increase the forces placed on the joint surrounding the navicular bone.

One notable exception to this is the tennisization disclosed in the inventor's earlier US Pat. No. 4,670,998. The shoe has a rigid stirrup made of a material with a high elastic modulus and low elongation, which extends into the upper skin and provides effective support for the navicular bone and the joints associated with the navicular bone. Provides support for direction.

The rigid stirrup member includes a portion extending downwardly and backwardly toward the sole on both sides of the shoe in front of the foot opening, and a portion extending around the rear of the shoe behind the heel. has. The medial side of the shoe extends downward and behind the navicular bone of the foot. When the shoe is laced, the rigid stirrup member engages the navicular bone in a manner that prevents rotation of the navicular bone and relieves forces on the associated joint.

SUMMARY OF THE INVENTION The present invention is disclosed in US Pat. No. 4,670,998, owned by the inventor.
It relates to improvements in tennis playing of the type disclosed in No. Additionally, this US patent uses a rigid stirrup member to support the navicular bone. In particular, the present invention utilizes an improved rigid stirrup member that is integrated into the structure of the shoe itself in a new and better manner. Based on the present invention,
A preformed rigid support stirrup is sandwiched between two layers of the upper of the shoe and is strategically secured to the sole along each side of the shoe and at the rear of the shoe. The component is a pre-molded member with a one-piece heel skin. Furthermore, this part is included in the fourth aspect of the present invention. ．． It has an improved anatomically correct shape compared to the preferred embodiment of the '670.998 patent. It should be noted that in the '998 patent, the support member is molded flat and then bent during the hanging process. For these reasons, the shoe is generally more rigid, while at the same time using thinner support members, while retaining the externally attached structure shown in the preferred embodiment of my '4,670.998 patent. It has support characteristics comparable to the examples. The result is a shoe that is lighter and has a better appearance. The improvements according to the invention also make the shoe easier to manufacture. The purposeful placement of stirrup side walls is
It effectively supports the navicular bone and does not interfere with the movement of the foot.

A preferred embodiment of the shoe according to the invention has a sole having an insole and an outsole attached to the insole, and an upper attached to the sole between the insole and the outsole. The upper has an outer layer forming a foot receiving opening and an inner lining extending forward from the heel to at least approximately the upper of the shoe on either side. Means for attaching the inner lining to the outer layer extend around the foot receiving opening and spaced below the opening. Another means of attachment between the inner lining and the outer layer is provided in front of the foot receptacle opening, which extends downwardly and rearwardly to the sole on either side of the shoe, thereby providing an attachment means. forms a pocket at the rear of the upper of the shoe. A pre-shaped rigid stirrup member is disposed in the pocket and preferably has an overhang extending inwardly approximately at right angles to the side walls of the stirrup.

The overhanging pieces secure the support member to the sole at the rear of the shoe, on both sides of the shoe.

The internal stirrup components can be molded from materials such as, but not limited to, nylon 6.12 or graphite fibers or glass-filled polymers. It has a pair of upper ends located forward of the shoe foot receptacle opening. The upper end projects from the pocket through a slot formed in the upper and has a hole for attaching a shoelace.

The upper end may be free or sewn.

The rigid stirrup member also has a side portion and a heel portion, the side portion extending from the upper end downwardly into the sole and toward the rear, and the heel portion extending from the upper end to the sole of the foot in place of the regular heel skin of the shoe. Extends around the back and between the sides. At the mid-plane of the shoe, the sides extend over the navicular bone and the heel extends high enough to encircle the calcaneus of the foot. Preferably, the side walls of the stirrup are curved or arched to match the shape of the foot and the intermediate side wall curves around and under the navicular bone.

The midsole component is formed from synthetic sole materials of the type sold under the tradenames Bontex or Texon, or from fibers such as nylon. The outsole is formed on the insole by injection molding after the upper is attached to the insole, and may be made of polyurethane. Shoes are manufactured using the glue or slip-lasting method. In this method, the lower edge of the upper and the overhanging piece of the stirrup are glued to the midsole part. The outsole is then formed by injection or compression molding, or a pre-formed outsole is adhered to the upper.

For a better understanding of the invention, preferred embodiments will now be described in detail with reference to the accompanying drawings.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A shoe 10 according to the present invention includes an upper 12 and a sole 14 attached to the upper. The sole 14 is formed using known techniques from dual density polyurethane, with the outer layer 16 being a relatively dense polyurethane and the top layer 18 being a less dense polyurethane. It can also be formed with a preformed outsole and intermediate sole of standard bonded construction.

As shown in FIG. 9, the sole 14 has an insole 20 made of Texon or Bontex.
made of artificial sole material such as ex) or similar. Such soles are known and currently used not only in sports shoes but also in other types of shoes.

Upper 12 is formed from leather, nylon, canvas, or other suitable material. With particular reference to FIG. 9, the upper 12 has an outer layer 22 and an inner lining 24, the outer layer being formed from several pieces of a material configured in the shape of a shoe; extend on both sides of the shoe from the heel of the shoe 10 to at least the front position of the foot receptacle opening 26 (
1)-0 With reference to FIGS. 3-8, the shoe 10 has a pre-formed stirrup member 30, the stirrup being made of a material such as nylon 6.12 or a polymer containing carbon or glass fibers. It is made of a low elongation material with a high modulus of elasticity and does not stretch under tension, i.e. it is a relatively hard plastic. The rigid stirrup member 30 has a pair of pre-formed, anatomically correct and substantially parallel sides 3.
2 and 34, which are on opposite sides of the shoe and extend downwardly towards the sole 14 and towards the rear. The stirrup member 30 has a curved heel portion 36 which extends rearwardly behind the heel of the foot between the sides 32,34. The heel portion 36 projects upwardly from the sole 14 toward the top and covers the calcaneus, as will be described below in relation to FIG.

A pair of locking side flaps 40 extend from the lower end 38 of the rigid stirrup member 30 at each of the sides 32, 34. The overhanging piece 40 projects inwardly approximately at right angles to the side wall of the stirrup 30. The fixing heel projecting piece 41 extends perpendicularly from the lower end of the heel 3G. If desired, flares 40 and 41 can be in one continuous configuration.

As shown in FIG. 9, the bottom edge 42 of the inner lining 24, the bottom edge 44 of the outer layer 22, and the overhang 40 are wrapped around and extend inwardly over the bottom of the midsole 20. are doing. The side projecting piece 40 (also the fixing heel projecting piece) of the stirrup member 30 is located at the edge 4 of the inner lining 24.
2, and the bottom edge 44 of the outer layer 22 extends slightly further inwardly than the overhanging pieces 40 and 41 of the stirrup member 30, each of which contacts the underside of the midsole 20. The midsole 20 has a surface area that can be adhered to the underside of the midsole 20.

Referring to the stirrup cross-sectional views shown in FIGS. 5-8, preferably the side walls of stirrup member 30 are anatomically curved, i.e., arched outward to conform to the shape of the foot. . Preferably, the thickness of the sidewalls is greater in the middle section than in the middle section. In a preferred embodiment, the sidewalls are approximately 2.5 mm at midsection M-M.
It has a thickness of mm, and tapers from there to the upper part U-U.
Approximately 0.5 mm thick along the edges. Overhang piece 40
．． 41 has a thickness of approximately 1.5+++ m, as does the adjacent side wall. The side projecting piece 40 and the fixing heel projecting piece 41 extend inward a distance of 10++m. Preferably,
The thickness of the arcuate sidewall is such that the arcuate portion is relatively inflexible. However, the upwardly extending end R33 has a thinner thickness than the thicker part of the side wall, and can bend laterally (without stretching vertically), making it easy to put the foot in the shoe and take the foot out of the shoe. is becoming easier. If desired, the upper end, outwardly facing surface is provided with ribs 35 and a decorative finish. When attached to the sole of a shoe and laced, the stirrup strips form a surprisingly rigid structure (
a) supporting the navicular bone in its original position under stress, and (b) supporting the joint at the inferior talar joint, ie between the navicular bone and the calcaneus.

As shown in FIGS. 3 to 6, the middle and side portions 34 of the support member 30 are not mirror images, but each side is shaped anatomically to match the shape of each side of the foot. There is. Similarly, the lateral edges 33 of the lateral sides 34 extend slightly forward of the lateral sides 32 to accommodate a greater width laterally of the shoe.

A stirrup member 30 is disposed between the outer layer 22 and the inner lining 24. The outer layer 22 and the inner lining 24 have edges 46 and 48 located in front of the foot receiving opening 26.
It is sewn along the edges. The seam extends just forward of stirrup member sides 32 and 34 downwardly towards the sole and towards the rear. The outer layer 22 and inner lining 24 are sewn together along a line 54, as indicated by seam 55 in FIG. As shown in FIG. 9, an outer flap 60 may be provided to cover the seam along the edge 54.

A seam 55 extends around the foot receiving opening 26 and is spaced below the opening 26. Edges 54, 46, and 48
defines a pocket for receiving a rigid stirrup member 30. Ends 33a, 33b of stirrup 30 extend outwardly from the pocket through slot openings 50 formed in the upper. A paper hole 62 is formed in the upper free end of the rigid stirrup side 32.34 to allow the shoelace to pass through the shoe in conjunction with the paper hole 64. As shown, stirrup member 3
0 is an alternative to normal (and thicker) heel skin.

FIG. 10 is a drawing showing the bone structure and stirrup members;
Shows the middle part of the left foot. Chain line: calcaneus 72, malleolus or talus 74, navicular bone 76, internal cuneiform bone 78, first metatarsal bone 80
, and two phalanges 82,84 are shown.

Tibia 86 is shown where it articulates with talus 74.

The sides 32 of the rigid stirrup member 30 project downwardly and posteriorly over the navicular bone 76 at the mid-foot. When the shoe is laced and the upper free ends of the sides 32.34 are laced together, the stirrup members become relatively inflexible. Because the stirrup member extends around the scaphoid and because the stirrup surrounds the scaphoid and the calcaneus, the stirrup constitutes a support for the inferior talar joint, and the stirrup constitutes a support for the inferior talar joint. As explained in detail in the .670.998 patent, movement of the navicular bone is significantly inhibited. The stirrup thereby provides improved support for the foot during sports activities. As shown in FIGS. 4-7, the anatomical configuration of the sidewall according to the present invention is more suitable for wrapping the foot and wrapping around the navicular bone to provide support. The reason is that the sidewall arches around the foot and navicular bone.

The shoe according to the present invention can be formed using a glue-on processing method. The upper 20, consisting of an outer layer 22 and an inner lining 24, is premolded and has edges 46, 48 . and 54 to form a pocket.

The rigid stirrup member 30 is likewise preformed, for example by injection molding. The material used to fabricate stirrup 30 is preferably a material with relatively high tensile strength, such as nylon 6.12 or a carbon or glass fiber filled polymer.

The midsole 20 is cut to the shape of the sole of the foot and placed on a last (not shown), and the preformed upper 12 is positioned on the last with stirrups placed in the pockets. , the free ends 32,34 project through the openings 50°52. The bottom ends 42 and 44 are wrapped over the bottom ends of the midsole 20 with a right-angled overhang 40.41 therebetween in the manner shown in FIG. It is attached to the bottom of the insole material 20 by adhesive and heat treatment or other methods. Thus, the upper 12 and midsole 20 assembly is placed in a mold, and the sole 14 is poured into the mold and adheres to the upper 12 and midsole 20. The final step is to form an outer layer on the preformed upper in situ, with an outer sole of two densities if desired, and is a process known per se. No further explanation is required. As previously mentioned, the shoe can be made with a bonding process in which a pre-shaped upper is bonded to a pre-shaped midsole.

Note that this bonding process is similar to known processes except for the presence of a novel internal support stirrup.

The foregoing has been a description of preferred embodiments of the present invention. Modifications and improvements to this invention will be apparent to those skilled in the art without departing from the spirit of the invention disclosed herein. All such modifications and improvements are intended to be within the scope of the invention as defined by the claims.

[Brief explanation of the drawing]

Figure 1 is a side view of the shoe showing the middle surface of the shoe on the left foot; Figure 2 is a side view of the shoe showing the lateral side of the shoe on the left foot; Figures 3 and 4 are the same as Figures 1 and 2. Intermediate side view and top view, respectively, of a rigid stirrup member used in a shoe; 5. 6. 7. and Figure 8 is the line 5-5゜6- of Figure 4.
6. Respective cross-sectional views of the stirrup members along lines 7-7 and 8-8; Figure 9 is a side view of Figure 1 along line 9-9; Figure 10 shows the structure of the bones of the foot. FIG. 3 is an illustrative mid-side view of the shoe showing the anatomical relationship between the rigid stirrup and the rigid stirrup according to the present invention. 10... Shoes 12... Upper 14...
Sole 16... Outer layer 18... Upper layer
20... Insole part 22... Outer layer
24...Inner lining 2 pages...Foot holder is an opening
30... Stirrup member 32... Side part
33...Top end 34...Side part
36...Heel part 38...Lower end of stirrup member 40...Fixing side projecting piece 41...Fixing heel projecting piece 42...Bottom edge 44 of inner lining...・Bottom edge of outer layer 46.48...edge, seams 50, 52...slot opening 55...seam 62...paper hole 74...talus 54...edge 60...outside Fold 64...paper hole 76...navicular bone

Claims (1)

[Scope of Claims] 1. A sports shoe comprising a sole, an upper, and a support stirrup, the upper forming a foot-receiving opening and having opposed medial and lateral sides. and an outer layer and a medial lining, the medial lining being at least anterior to the navicular bone of the foot at the medial surface of the shoe and at least anterior to the foot receiving opening at the lateral side of the shoe. extending from the heel, the support stirrup is disposed between the outer layer and the inner lining and is configured to have opposed sides, a heel skin, and a securing means; said lateral parts are arranged on both sides of the shoe, said heel skin part extending between said lateral parts behind the heel of the foot upwardly from the sole so as to wrap around the calcaneus; extend from a lower edge of each of the side portions and the heel skin to secure the stirrup to the sole, the side portion having an upper end located forward of the foot receiving opening. and at the medial surface of the shoe the lateral portion extends downwardly and toward the rear over the navicular bone of the foot, and the support stirrup is formed of a thin, hard plastic and is rigid. A sports shoe having opposed intermediate surfaces and lateral sides, characterized in that the shoe has means for releasably joining said upper ends together in a tension-retaining engagement. 2. The sports shoe of claim 1, wherein the opposing sides and the heel skin have sidewalls that are arched outwardly and shaped anatomically in relation to the foot. 3. means for attaching the inner lining to the outer layer, the means extending in a path generally around and spaced below the foot-receiving opening; means for attaching the medial lining to the lateral layer spaced apart in front of the opening and extending downwardly and toward the rear on each side of the shoe; 2. Attachment to the outer layer anterior to the navicular bone, whereby the attachment means form a pocket at the rear of the carapace, and the stirrup is disposed in the pocket. Sports shoes listed in . 4. Sports shoe according to claim 1, characterized in that the fastening means comprises one or more overhangs extending inwardly at substantially right angles to the side and heel. 5. The sole includes an insole and an outer sole, the insole has an upper surface and a bottom surface facing the outer sole, and the inner lining and the outer layer form an edge of the bottom surface of the insole. the inner lining and the outer layer have an overlapping portion wrapped over the overlapping portion, the one or more overhang strips being disposed therebetween; Sports shoe according to claim 4, characterized in that it has means for fixing to the bottom surface of the midsole, thereby being fixed between the midsole and the outsole. 6. The side wall has a thickness that is relatively undeformable, and a pair of bendable, upwardly extending ends protrudes from the side wall to the upper end. 2. Sports shoes according to item 2. 7. The following steps (a) to (f): (a) forming an upper with an outer layer forming a foot-receiving opening and an inner lining, at least one of the navicular bones of the foot at said intermediate surface of the shoe; extending the medial lining from the heel forwardly and at least in front of the foot-receiving opening on a lateral side of the shoe; (b) providing an insole in the shape of the sole of the shoe; (c) any one of the shoes; and a heel shaped to extend between the sides and extend behind the heel of the foot and upwardly from the sole so as to wrap around the calcaneus. a rigid stirrup having a skin portion, said side portion having an upper end and a lower end, said side portion extending downwardly and posteriorly over the navicular bone of the foot as the medial surface of the shoe; the stirrup is configured to extend toward the shoe sole, and is configured to have fixing means extending from lower edges of each of the side portion and the heel skin portion to secure the stirrup to the sole. (d) positioning the stirrup between the outer layer and the inner lining such that the upper end is located in the foot-receiving opening; (e) wrapping the lower ends of the inner lining and the outer layer with a securing means of the stirrup member over and between an edge of the midsole; and (f) attaching an outsole over the insole and the ends of the inner lining, the outer layer, and the stirrup attached to the insole; A method for making a shoe having opposed intermediate surfaces and lateral sides, comprising the steps of: 8. Prior to said step (d), following steps (g) to (j), namely: (g) along a path extending substantially around said foot receiving opening and spaced below said opening; (h) attaching the medial lining to the lateral layer at the medial surface of the shoe along a path located anterior to the navicular bone and extending downwardly and toward the rear; (i) attaching the medial lining to the lateral layer on the lateral side of the shoe along a path located forward of the foot-receiving opening; forming a pocket in the rear portion; (j) providing a slot opening in the outer layer at a position for receiving the upper end of the stirrup and positioning the stirrup member in the pocket; 8. The method of claim 7, comprising: extending an end outwardly through the slot opening and overlying the outer layer.