JPH0424042B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a ground-contacting sole for general athletic shoes, shoes for construction site work, or shoes for agricultural work, and more particularly, the present invention relates to a ground-contacting sole for general athletic shoes, shoes for construction site work, or shoes for agricultural work, and more particularly, the present invention relates to a ground-contacting sole that has a grip force on the ground that is greater than that of conventional ground-contacting soles. Concerning the large ground sole.

(Prior Art) It is generally known that the grip force of athletic shoes on the ground is inferior to that of underground shoes. This is because in underground tabs, the big toe and all four toes are separated by a fork, so the big toe and the other four toes can move freely, and as a result, each toe can accurately adjust to the unevenness of the ground. This is because conventional athletic shoes cannot achieve this effect.

(Problem to be Solved by the Invention) In order to improve the grip force of athletic shoes on the ground, it is possible to change the pattern of the ground-contact sole in the area where the big toe and other four toes act, and to improve the grip of the ground tab. Athletic shoes containing a plate-like member corresponding to the above have been proposed in the past. These improvements in athletic shoes have not done much to improve grip. or,
Athletic shoes with forks like underground tabs have also been proposed, but these have problems in terms of their sleek appearance.

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a ground-contact sole for footwear that maintains the sleek appearance of conventional athletic shoes while providing greater grip than conventional athletic shoes.

(Means for Solving the Problems) According to the present invention, the part of the ground sole of footwear on which the toe rests is formed as at least one ground sole piece independent of the ground sole body, and the ground sole piece and the ground sole body are connected to each other. are connected to each other via a flexible connecting web, whereby a portion of the ground sole of the footwear on which a toe rests can move substantially independently of the ground sole body. The underground is provided.

(Function) In the grounding sole of the present invention, the big toe grounding sole and the four toe grounding sole can move independently of the grounding sole main body according to the movement of the toes.

(Example) Examples of the present invention will be described in detail below with reference to the accompanying drawings.

As can be clearly seen from FIGS. 1 and 2, which illustrate the first embodiment of the present invention, a grounding sole body 1 made of a material such as rubber includes a grounding sole piece 3 for the big toe on which the big toe 2 rests.
and a four toe grounding bottom piece 5 on which the four toes 4 rest,
A flexible connecting web is provided between these grounding sole pieces and the grounding sole body 1 so that each of the grounding sole pieces can move independently with respect to the grounding sole body 1. This flexible connecting web 6 is preferably a member that is thinner than other parts and has a U-shaped cross section in order to further increase flexibility. The big toe midsole 7 and the four toe midsole 8, which are made of a material such as plastic that is harder than the material forming the grounding sole body 1, form the big toe grounding sole piece 3 and the four toe grounding bottom piece 5.
are installed respectively. A cushion 10 made of sponge or the like is attached to the insole of these shoes to provide better contact with the toes. The peripheral portions of these midsole extend beyond the flexible connecting web 6. Further, these inner soles are firmly connected to the grounding sole piece 3 for the big toe and the grounding sole piece 5 for the four toes, respectively. A part of the grounding sole body 1 protrudes inward from between the grounding sole piece for the big toe and the grounding sole piece for the four toes to constitute a fork 9, and because of this fork, the big toe 2 and the four toes 4 is separated inside the shoe. The hanging cloth is for suspending the heel and arch of the ground sole, and has adhesive applied to its periphery. Furthermore, in order to suspend the big toe and all four toes, a large number of traps 19 are arranged in zigzag stitches around the periphery of the upper of these parts, and a hanging thread is passed through them. By tightening this and tying both ends of the thread, the suspension of this part is completed. The hanging thread is pulled out after gluing the upper part and the grounding sole. The upper 11 is bonded to the ground sole body 1 at the periphery of the shoe.

As mentioned above, since the grounding sole piece for the big toe and the grounding sole piece for the four toes are connected to the grounding sole body via the flexible connecting web, the big toe part and the four toe part can move freely, respectively. I can do it. This can be better understood by referring to FIGS. 3 and 4, which illustrate the movement of the big toe. Needless to say, the four toes can also be exercised in the same way as the big toe. In this way, since the big toe and/or all four toes can independently protrude downward as necessary, each toe can accurately grasp the unevenness of the ground, and as a result, The grip force on the ground is greater than with conventional ground contact soles.

Next, a second embodiment of the present invention will be described with reference to FIGS. 5 and 6.

The second grounding sole according to the above-mentioned detection of the present invention extends the adjacent ends of the grounding sole piece 3 for the big toe and the grounding sole piece 5 for the four toes in the vertical direction, and extends the ends of these vertically extending portions. Except that the prongs 12 are formed by connecting them to each other.
This embodiment is substantially the same as the first embodiment. Therefore, the independent movements of the big toe grounding sole piece 3 and the four toe grounding sole piece 5 are more restricted than in the first embodiment, but since there is no misalignment between the fork and the toe in contact with it, Shoes can be prevented from slipping in this area.

FIG. 7 shows the third part of the grounding sole for footwear according to the present invention.
According to this embodiment, the toe grounding sole piece, which is integrally formed with the grounding sole piece for the big toe and the grounding sole piece for the four toes, is connected to the flexible connecting web 6.
It is connected to the ground sole main body 1 via.

FIG. 8 shows the fourth part of the grounding sole for footwear according to the present invention.
According to this embodiment, a ball grounding sole piece for the big toe is newly provided at the base of the big toe, and the grounding sole piece for the big toe and the grounding sole piece for the four toes together form a total Three ground sole pieces are connected to the ground sole body 1 via flexible connecting webs 6.

In the first to fourth embodiments described above,
Thin wall U made of the same material as the ground sole body
Instead of the flexible connecting web 6 explained and illustrated as a letter-shaped member, a thin plate-shaped flexible connecting web 15 may be adopted as shown in FIG.
As shown in FIG. 10, a cavity 16 may be provided at the position where the flexible connecting web is to be provided, and the thin portions forming the upper and lower portions of this cavity may be configured to provide a buffering effect. Alternatively, as shown in FIG. 11, a flexible connecting web 17 made of a material that is more flexible and more extensible than the ground sole body 1 may be bonded to the ground sole body 1.

In athletic shoes having a ground-contacting sole configured according to the present invention, the grounding sole piece for the big toe and the grounding sole piece for the four toes move independently with respect to the grounding sole, so that each toe part touches the ground via the grounding sole piece. It is able to accurately capture irregularities, and as a result, it can exert a greater grip force than conventional athletic soles with a single-piece ground contact sole. The fork prevents the toe from sliding sideways inside the shoe. It also works to effectively transmit the force of each toe to the ground via each ground contact sole. In this way, while having the functionality and comfort of underground shoes, there are no cracks in the appearance, so the smart appearance of conventional athletic shoes is not lost.
In addition, while conventional athletic shoes restrict the free movement of each toe, the athletic shoes with a ground-contacting sole configured according to the present invention allow the big toe and all four toes to move independently up and down, albeit to a limited extent. It can be moved, and the toes can fully utilize the functions that the toes originally have when walking.

Therefore, compared to conventional athletic shoes, they also have the advantage of being effective for healthy foot development.

[Brief explanation of drawings]

1 is a sectional view taken along line A-A' in FIG. 2 of an athletic shoe having a ground-contacting sole according to a first embodiment of the present invention; FIG. FIG. 3 is a view of the tip of an athletic shoe with a sole viewed from the bottom, and FIG. 3 is a diagram showing B- in FIG.
B′ is a sectional view, and when the big toe is bent downward in FIGS. 4 and 3, the grounding sole body 1 for the big toe is
FIG. 5 is a cross-sectional view taken along line C-C' in FIG. 6 of the athletic shoe having a ground-contacting sole according to a second embodiment of the present invention; 7 is a view from the bottom of the tip of an athletic shoe having a ground-contacting sole according to a second embodiment of the present invention, and FIG. FIG. 8 is a view of the top end of an athletic shoe viewed from the bottom; FIG. Figures 9, 10, and 11 are
FIG. 3 shows a modified version of the flexible connecting web of the athletic shoe with a ground-contacting sole according to the invention; 1... Grounding sole body, 2... Big toe, 3... Grounding sole piece for big toe, 4... Four toes, 5... Grounding sole piece for four toes, 6... Flexible connecting web.

Claims (1)

[Scope of Claims] 1. The part of the ground sole of the footwear on which the toe rests is formed as at least one ground sole piece independent of the ground sole body, and the ground sole piece and the ground sole body are connected via a flexible connecting web. A grounding sole of footwear, characterized in that the part of the grounding sole of the footwear on which the toe rests can move substantially independently of the grounding sole body. 2. The grounding sole piece is composed of a grounding sole piece for the big toe on which the big toe rests and a grounding bottom piece for the four toes on which the other four toes rest, and the fork separating the big toe and the four toes from each other is The grounding sole according to claim 1, wherein the grounding sole extends upward from the grounding sole body between the toe grounding sole piece and the four toe grounding sole piece. 3. The above-mentioned grounding sole piece is characterized in that it consists of a grounding sole piece for the big toe on which the big toe rests, a grounding sole piece for the four toes on which the other four toes rest, and a grounding sole piece for the ball of the big toe on which the ball of the big toe rests. The grounding sole according to claim 1. 4. The grounding sole according to claim 1, wherein the grounding sole piece comprises a single grounding sole piece on which the big toe and the other four toes rest. 5. The prongs are formed by extending the adjacent ends of the grounding sole piece for the big toe and the grounding sole piece for the four toes in the vertical direction, respectively, and connecting the ends of these vertically extending parts to each other. The ground sole for footwear according to claim 1, characterized in that: