JPS591A - Running shoes - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to running shoes, and particularly to running shoes suitable for so-called jogging, in which one can run without worrying about time.

It is known that even when a runner runs at a relatively slow speed of 4 to 5,771 m/s, a force of 2.5 to 3 times the body weight is applied to the foot when landing. If the impact is transmitted to the feet, it is likely to cause damage to the knee joints, etc. Therefore, the soles of running shoes used for this purpose need to be provided with a relatively thick shock absorbing layer with good cushioning properties on the heel, where the impact first hits the ground.

By the way, during running, during the process from when the foot hits the ground to when the foot kicks, the area below the ankle twists and tilts inward (so-called pronation). In this condition, it is easy to cause problems in the knee joints, etc.As mentioned above, in order to improve the cushioning properties, if the sole of the shoe is made too soft, the stability becomes poor (this overpronation occurs). become more likely to occur.

The present invention attempts to meet these contradictory demands regarding the cushioning properties of shoe soles, and its purpose is to use a sole with relatively soft cushioning so that it can sufficiently absorb the impact upon landing, while To provide a new running shoe which prevents the sole from tilting significantly even when pressure is applied to the inside of the sole and prevents overglonation.

In addition, conventional running shoes have the disadvantage that the inside part of the sole tilts downward and deforms when worn, causing lateral vibration in the moon-shaped core provided around the heel of the shoe. .

Therefore, an object of the present invention is to prevent the sole from being tilted and deformed, thereby providing a running shoe that can withstand long-term use.

In order to achieve these objectives, the present invention provides a shoe sole with:
A shock absorbing layer with a substantially uniform thickness when viewed in the lateral direction and a horizontal hard layer where the inner part is thicker than the outer part are provided, and the thickness of the entire sole is adjusted such that the inner part is thicker than the outer part. There is.

Hereinafter, the present invention will be specifically explained with reference to the drawings.
As shown in FIG. 3, this running shoe includes a shoe cover 1 made of synthetic resin leather, natural leather, etc., and a multilayer sole 2 bonded to the lower surface of the shoe cover 1. This sole 2 has a midsole 3 with a substantially uniform thickness that covers the entire lower surface of the shoe cover 1, and a midsole 3 that gradually increases from the heel H to the toe T so that the heel H is higher than the toe T. The wedge sole 4 has a thin thickness.The mid sole 3 and the wedge sole 4 are made of relatively soft sponge, and constitute a shock absorbing layer. As shown in cross section in FIG. 3, the thicknesses of the midsole 3 and the wedge sole 4 are substantially uniform in the lateral direction.

A horizontal hard layer 5 is provided between the midsole 3 and the wedge sole 4, and the thickness of the inner part A is larger than the thickness of the outer part B. This hard layer 5 is made of hard sponge and is colored in a different color from the midsole 3 and wedge sole 4. As shown in FIG. 2, the range in which this hard layer 5 is provided is from the heel part H to the non-stepping part C, and the hard layer 5 is provided on the stepping part on the side of the toe part T from the non-stepping part C. is made to not exist.

An outsole 6 made of relatively hard rubber is attached to the lower surface of the wedge sole 4.
The bottom surface of the board is uneven and serves as a ground surface.

In this way, these mid soles 3 and wedge soles 4
The thickness of the sole 2 consisting of the hard layer 5 and the outsole 6 is such that the inner part A is thicker than the outer part B.

A midsole 7 is provided on the upper surface of the sole 2, and the lower peripheral edge of the shoelace 1 is sandwiched between the midsole 8 provided on the upper surface of the midsole 7 and the sole 2. The area around the heel of the heel 1 has a layered structure, and a hard moon-shaped core 9 is provided between them as usual.

When a runner wears such running shoes and runs at night, pronation naturally occurs during the process from landing on the heel H to kicking with the toe-side stepping part, and the sole 2 of the shoe A greater pressure is applied to the inner part A than to the outer part B. Therefore, the midsole 3 and wedge sole are relatively soft.

- The inner part A of the shoe sole 4 is thicker than the outer part B (compressed and its thickness becomes smaller. However, this sole 2 has a hard layer 5
Because the thickness of the inner part A is thicker than the thickness of the outer part H, the inner part A will not sink further than the outer part B at this time. Therefore,
Oats (- can prevent pronation.

During normal walking, the inner side A of the midsole 3 and the wedge sole 4 is elastically compressed, so that the walking is hardly affected. However, if the difference in thickness between the inner part A and the outer part B of the hard layer 5 is made too thick, even if the midsole 3 and the wedge sole 4 are compressed, the thickness of the inner part A of the sole 2 will be too large. The thickness of the hard layer 5 remains thicker than that of the hard layer 5, resulting in a rusted state where the part below the ankle is tilted outward, making the foot easily fatigued.
It is desirable that the difference in thickness between the two is about 3 mm or less.

Further, the inner portions A of the midsole 3 and the wedge sole 4 may be compressed and deformed due to long-term wear, and the thickness of the inner/lateral portions A may become smaller than the thickness of the outer portion B. Even in that case, the hard layer 5 hardly deforms, and the thickness of the inner part A remains larger than the thickness of the outer part B, so that the inner part A of the sole 2 is thinner (too much) than the outer part B. Therefore, there is no possibility that the heel of the foot is too close to the inner side A, causing the moon-shaped core 9 provided around the heel of the shoelace 1 to sway laterally.

Since the hard layer 5 is not provided on the stepping part on the toe side, sufficient flexibility of the stepping part can be ensured, and kicks at the toe part T can also be performed flexibly. In addition, the hard layer 5 has flexibility in the anteroposterior direction (if necessary, the hard layer 5
It should be provided only in

Note that by coloring the hard layer 5 as described above,
The color of the sole 2 can be accented.

The position where the hard layer 5 is provided is not limited to the above-mentioned one, but it may be placed on the upper surface of the midsole 3 as shown in FIG. It may be between the wedge sole 4 and the outsole 6.

As described above, the running shoes according to the present invention include a shock absorbing layer with good cushioning properties and a hard layer that is difficult to deform in the sole, and the shock absorbing layer has a substantially uniform thickness in the lateral direction. , by making the hard layer wedge-shaped, the thickness of the inner part being larger than the thickness of the outer part,
The thickness of the sole is made so that the inner part is thicker than the outer part, so even if you pronate while running, the inner part of the sole will not sink too much than the outer part. In addition, even if worn for a long time, the upper surface of the sole will not tilt and become a habit, which will cause the moon-shaped core of the shoe to sway, making it highly durable. It can be used as a

Incidentally, the sole of the running shoes of the present invention can also be formed by injection molding.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing an embodiment of running shoes according to the present invention, FIG. 2 is a bottom view thereof, and FIG.
4 and 5 show other embodiments of running shoes according to the present invention.
FIG. 1...Fashion cover, 2...Sole, 3...Mitsudosole,
4...Wedge sole, 5...Hard layer, 6...Outsole, 9...Moon-shaped core, small...Inside part, B...
Outer part, C... non-stepping part, H... heel part, T... toe part Patent applicant Achilles Corporation Fig. 2 Fig. 3

Claims (1)

[Claims] In a running shoe comprising a shoe cover (1) and a sole (2) adhered to the lower surface of the shoe cover (1), the sole (2) has a substantially uniform thickness in the lateral direction. A shock absorbing layer (3°4) with good cushioning properties and provided on the heel (H) or from the heel (H) to the non-stepping part (C),
A running shoe in which the inner part (4) has a wedge-shaped deformable hard layer (5) that is thicker than the outer part CB.