JP2002238613A - Sole - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make production cost lower and production control easier without impairing the appearance and design of shoes by reasonably improving a shock absorbing body, though the existence of the shock absorbing body is visually and securely recognized. SOLUTION: This sole comprises the shock absorbing body 4 filled with fluid inside a bag body thereof and embedded in a position corresponding to a heel part inside the sole and a display body 6 for the existence of the shock absorbing body 4 being made to be recognized in a state at least a part of the shock absorbing body 4 is apart from the body 4 and exposed outside.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a shock absorber in which a fluid is sealed in a bag at a position corresponding to the heel in the sole of the shoe so that the shock acting on the heel of the shoe can be reduced. The present invention relates to a shoe sole having embedded therein.

[0002]

2. Description of the Related Art In a conventional shoe sole, air, which is an example of a fluid, is sealed in a transparent synthetic resin bag inside a concave portion of an upward opening formed in a lower sole which is a constituent member of the shoe sole. Along with mounting a certain shock absorber, inside and outside both outer surfaces of the shoe sole, and in a communication hole formed through a side wall of the lower sole in a state communicating with at least the left and right sides from the recess,
A part of the shock absorber or a protrusion integrally formed on a side wall of the shock absorber is fitted, and a part of the shock absorber or a part of the protrusion exposed to the outside through the communication hole is removed. (For example, see Japanese Utility Model Laid-Open No. 4-112606,
-5006).

[0003]

The width of the shoe sole increases and decreases with the size of the shoe, but the maximum left and right width of the shock absorber fitted into the communication hole in the lower sole at the portion also serving as the indicator is set to the maximum size. When the size is set to the width corresponding to the width of the shoe sole, the display body of the shock absorber is greatly protruded outward from the communication hole in the shoe sole of the minimum size, so that the appearance design of the shoe is easily damaged.
Conversely, if the maximum width of the shock absorber is also set to the dimension corresponding to the width of the minimum size sole, the maximum size of the sole of the shock absorber will be the same as that of the shock absorber. Since it penetrates deeply into the communication hole, the function for visually recognizing the presence of the shock absorber is reduced. Therefore, it is necessary to produce the smallest type of shock absorber corresponding to the size of the shoe, as long as the appearance design of the shoe is not easily damaged and the presence of the shock absorber can be visually recognized without fail. This has led to an increase in manufacturing costs and complicated production management.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and a main problem thereof is that a rational improvement of a shock absorber does not impair the appearance design of a shoe and that the shock absorber is not damaged. It is an object of the present invention to provide a shoe sole that can surely visually recognize the existence of, but that can reduce manufacturing costs and facilitate production management.

[0005]

According to a first aspect of the present invention, there is provided a shoe sole according to the first aspect, wherein a display for recognizing the presence of the shock absorber is separated from the shock absorber. In a state where at least a part thereof is exposed to the outside in the closed state.

[0006] According to the above characteristic configuration, the shock absorber for absorbing and relaxing the shock acting on the heel portion of the shoe and the display body for recognizing the existence of the shock absorber are separately formed. , Regardless of the size of the shoe, while using a single type of shock absorber to securely embed in the heel portion of the shoe sole, regardless of the position where the shock absorber is embedded, the display body from the outside It can be easily viewed and can be freely provided in a good appearance.

Therefore, a part of the shock absorber or a part of the protrusion exposed to the outside through the communication hole is fitted by fitting a protrusion integrally formed on a part of the shock absorber or the side wall thereof. There is no need to prepare a plurality of types of shock absorbers corresponding to shoe sizes, unlike a conventional shoe sole which is also used as a display for recognizing the presence of a shock absorber.

Therefore, without impairing the appearance design of the shoe,
In addition, the manufacturing cost can be reduced and the production management can be facilitated, while the presence of the shock absorber can be visually recognized with certainty.

A characteristic configuration of the sole according to the second aspect of the present invention resides in that the display is provided only on the inner outer surface of the sole.

According to the above characteristic configuration, in the case of athletic shoes, especially spike shoes for baseball, the outer outer surface and the rear outer surface of the shoe sole tend to be easily damaged by abrasion or abrasion due to sliding or the like. Even in this case, if the display body is provided on the inner outer surface of the shoe sole, the damage to the display body can be suppressed, so that the presence display function of the shock absorber can be favorably exhibited over a long period of time. it can.

According to a third aspect of the present invention, there is provided a shoe sole according to the present invention, wherein the shock absorber is provided in a recess of an upward opening formed in a lower sole which is a constituent member of the shoe sole. A transparent or translucent synthetic resin display body is fixed in a mounting portion penetratingly formed on the lower bottom side wall in a state communicating with the shock absorber in a state of contacting with the shock absorber or leaving a gap therebetween. It is in the point.

According to the above-mentioned characteristic structure, the transparent or translucent synthetic resin display member provided in the mounting portion has the concave portion while exhibiting the function of indicating the presence of the shock absorber at the outer end facing the outside. The position of the shock absorber can be regulated by the inner end facing the, and the strength of the mounting portion forming portion can be reinforced by the display body inserted and fixed in the mounting portion.

A characteristic configuration of the shoe sole according to a fourth aspect of the present invention is that the display body and the mounting portion are formed in a convex shape having a wide front-rear width on the concave side.

According to the above-mentioned characteristic configuration, the display body provided in the mounting portion can be reliably prevented from peeling or falling off.

[0015] A characteristic configuration of the shoe sole according to the fifth aspect of the present invention is that a part of the upper surface of the display body is formed as a receiving surface capable of receiving a part of the cover.

According to the above-mentioned characteristic configuration, while the mounting portion for providing the display body is formed through, the receiving surface of the display body provided on the mounting portion and the receiving surface formed on the lower bottom are formed. It is possible to securely and firmly adhere and fix a part of the shell part.

According to a sixth aspect of the present invention, there is provided a shoe sole according to the present invention, wherein the display body has a reinforcing contact surface fixed to an inner wall surface of a lower portion of the inner wall surface at a peripheral portion of the mounting portion. In that it is formed.

According to the above-mentioned characteristic configuration, while the mounting portion for providing the display body is formed through, the contact portion of the display body fixed to the inner wall portion of the periphery of the through-formed portion of the mounting portion allows the mounting portion of the mounting portion to be formed. The penetrating formation can be reinforced.

According to a seventh aspect of the present invention, there is provided a shoe sole comprising a resin bag as a component of the shock absorber.
A U-shaped outer bag portion substantially along the contour of the heel, and a connecting outer bag portion formed so as to communicate with a portion of the U-shaped outer bag portion slightly deviated from both free ends to the bottom side, An inner bag portion formed so as to communicate with an intermediate portion of the connecting outer bag portion and a bottom portion of the U-shaped outer bag portion, and a fluid inlet of the bag body is connected to the connecting outer bag portion. In that it is formed at a portion facing a concave portion formed by the portion and the free ends of the U-shaped outer bag portion.

According to the above-mentioned characteristic configuration, by connecting the fluid to the U-shaped outer bag portion substantially along the contour of the heel and sealing the fluid between the outer bag portion and the inner bag portion, the impact acting on the heel portion can be reduced. Not only can the absorption be moderately absorbed, but also the fluid inlet portion of the bag body is formed at a portion facing the concave portion formed by the connecting outer bag portion and both free ends of the U-shaped outer bag portion. Therefore, for example, as in the case where the fluid injection port is integrally formed in a state of protruding from the outer surface of the U-shaped outer bag,
There is no need to form a storage recess for accommodating this fluid injection port in the lower bottom, and it is possible to secure a sufficient bonding area with the shell part by that much, and to securely connect the lower bottom and the shell part, It becomes possible to firmly adhere and fix.

[0021]

DESCRIPTION OF THE PREFERRED EMBODIMENTS [First Embodiment] FIGS.
An example of athletic shoes is a shoe sole of a baseball spike shoe A in which a plurality of claws are dispersedly arranged, and a wear-resistant and flexible outer sole (made of a thermoplastic elastomer-based polyurethane resin). A lower sole (midsole) 2 formed of an ethylene vinyl acetate copolymer (EVA), which is an example of a polymer foam, is laminated and adhered to the upper surface of the outsole 1. The upper part 9 is composed of natural leather, synthetic leather, woven fabric, non-woven fabric and the like, and the insole 3 made of a material having excellent cushioning properties such as EVA and rubber. Laminated and bonded.

The lower sole 2 has a size along the contour from the heel portion of the outer sole 1 to the arch portion, a portion corresponding to the heel has a maximum thickness, and further along the left and right side edges. The side walls 2A and the rear wall 2B along the rear edge are integrally formed in a state of being substantially U-shaped in plan view.

As shown in FIGS. 1 to 3, a portion corresponding to the heel in the shoe sole, that is, a portion corresponding to the heel of the lower sole 2,
A shock absorbing material 4 formed by enclosing (sealing) nitrogen gas, which is an example of a fluid, is accommodated in a transparent or translucent synthetic resin bag body 4A that is open in an upward direction and is substantially semi-oval in plan view and made of synthetic resin. A concave portion 5 having a possible depth is formed. Of the peripheral edge of the concave portion 5, the left and right side edges and the rear side edge which are substantially continuous with the stripe of U in plan view, and the corresponding both side wall portions of the lower bottom 2. A substantially U-shaped receiving surface 2C in a plan view for laminating and bonding a part of the upper cover portion 9 is formed between the lower base 2A and the rear wall portion 2B. In the outer surface of the shock absorber 4, which is fixed to the heel, which is a specific portion of the inner outer surface 2 a, is fixed in the recess 5 by fixing means (adhering means) such as an adhesive.
The transparent or translucent display body 6 made of a synthetic resin for recognizing the presence of the shock absorber 4 is provided so as to be separated from the shock absorber 4 and at least partially exposed to the outside.

As shown in FIGS. 3 and 4, the display body 6 has a mounting portion 7 formed through the lower bottom 2 so as to communicate with the middle position in the front-rear direction of the recess 5 from the inside in the left-right direction. Is inserted from the concave portion 5 side in contact with the shock absorber 4 or with a gap therebetween, and is fixed by fixing means (adhesion means) such as an adhesive.
The inner part located on the concave part 5 side is formed in a convex shape in which the width in the shoe front-rear direction is large.

As shown in FIGS. 1 to 4, the mounting portion 7 is connected to the concave portion 5 of the lower bottom 2 so as to communicate with the U-shaped receiving surface 2C.
And a mounting hole 7 opened in the inner outer surface 2a of the lower bottom 2 in a state communicating in the left-right direction with a center position in the front-rear direction of the mounting recess 7A.
B.

In the inner outer surface 2a of the lower bottom 2, a recess 2D is formed in the periphery of the opening of the mounting hole 7B of the mounting portion 7 for strongly recognizing the presence of the display body 6 mounted on the mounting portion 7. At the same time, on the inner wall surface of the lower bottom 2 corresponding to the formation area of the recess 2D, that is, on the inner wall surface facing the mounting concave portion 7A, a later-described mounting base 6A which is a part of the display body 6 is provided.
Are fixed by bonding or the like, and the inner wall surface of the lower bottom 2 corresponding to the formation area of the recess 2D is reinforced by the display body 6.

In other words, the mounting base 6 of the display 6
A has a contact surface 6b for reinforcement that is fixed to the inner wall surface of the inner wall surface of the lower bottom 2 at the periphery of the through-formed portion of the mounting portion 7 by fixing means (adhesion means) such as an adhesive. .

The display body 6 is made of polyurethane, which is an example of a synthetic resin having excellent elasticity and breakage resistance. As shown in FIGS.
And a display portion 6B fitted and mounted in the mounting hole 7B. The upper surface 6a of the mounting base 6A has the same height as the U-shaped receiving surface 2C. The upper surface 6a is formed in the same or substantially the same shape,
It is configured as a receiving surface that receives a part of the shell portion 9 in a state where it is continuous or almost continuous with the U-shaped receiving surface 2C and can be laminated and adhered.

As shown in FIG. 5, the bag body 4A of the shock absorber 4 is made of polyurethane, which is an example of a synthetic resin having excellent elasticity and breakage resistance, like the display body 6, and By heat-sealing the polyurethane layer and the lower polyurethane layer in a bag shape by a heat sealing technique, a U-shaped outer bag portion 4a substantially along the contour of the heel, and the U-shaped outer bag portion 4a A connecting outer bag portion 4b which is formed so as to communicate with a portion slightly deviated to the bottom side from both play ends, and a middle portion of the connecting outer bag portion 4b and a bottom side of the U-shaped outer bag portion 4a. A fluid injection port 4d for partitioning and forming an inner bag portion 4c which is formed in communication and for injecting (filling) nitrogen gas which is an example of a fluid into the bag body 4A,
It is formed at a longitudinal central portion of the connecting outer bag portion 4b and at a portion facing a concave portion 4e formed by the connecting outer bag portion 4b and both free ends of the U-shaped outer bag portion 4a.

The connecting outer bag portion 4b and the inner bag portion 4
c, the cross-sectional passage area in the first communication portion 4f with
Second communication portion 4 between inner bag portion 4c and U-shaped outer bag portion 4a
g is smaller than the cross-sectional area of the other portion as the fluid restricting portion, and both the free ends of the U-shaped outer bag portion 4a and the first
The cross-sectional area of the intermediate portion 4h between the communication portion 4f and the intermediate portion 4h is configured to be smaller than the cross-sectional area of the other portion as the fluid restricting portion.

The inner sack 4c is moved by the heel of the wearer.
When the compressive impact force is applied to the inner bag portion 4c, the inner bag portion 4c is compressed by the compressive impact force, and a portion of the nitrogen gas in the inner bag portion 4c is converted into a first communication portion 4f and a second communication portion which function as a fluid throttle portion. It flows into the connecting outer bag portion 4b and the U-shaped outer bag portion 4a through the portion 4g, and the impact force is dispersed and reduced by the cushion effect.

[Second Embodiment] In the sole of a baseball training shoe A shown in FIG. 6, a heel-equivalent portion which is a specific portion of a bottom surface 1a of an outer sole 1 made of an elastic material such as rubber having high frictional resistance. In addition, a transparent or translucent synthetic resin display 6 for recognizing the existence of the shock absorber 4 bonded and fixed in the recess 5 is at least partially externally separated from the shock absorber 4. It is provided in a state where it is exposed to.

That is, in the second embodiment, the heel portion of the shoe sole, that is, the heel portion of the lower sole 2 is substantially semi-elliptical in plan view and opened upward, and is made of synthetic resin. Nitrogen gas, which is an example of a fluid, is sealed (sealed) in a plastic bag 4A.
Recess 5 having a depth that can accommodate shock absorber 4
Is formed between the left and right side edges and the rear side edge, which are substantially continuous with the U-shaped strip in plan view, and the corresponding side walls 2A and the rear wall portion 2B of the lower bottom 2 in the peripheral edge of the concave portion 5. And shell part 9
Are formed in a substantially U-shaped receiving surface 2C in a plan view for laminating and bonding a part of the lower base 2 and the outer bottom 1 in a state where the lower base 2 and the outer bottom 1 The display body 6 formed in a flat shape so as to cover the opening of the vertical hole 8 is formed with a fixing means (adhesion means) such as an adhesive in a state where the whole is exposed to the outside. ). The other configuration is the same as the configuration described in the first embodiment.
The same reference numerals as those in the first embodiment denote the same parts, and a description thereof will be omitted.

[Third Embodiment] In the soles of baseball spike shoes or baseball training shoes A shown in FIG. 7, the heel-equivalent portion which is a specific portion of the inner outer surface 2a of the lower sole 2, and the outer sole 1 A transparent or translucent synthetic resin display 6 for recognizing the presence of the shock absorber 4 bonded and fixed in the recess 5 is provided at each of the heel-equivalent portions which are the specific portions of the bottom surface 1a, 4 and is provided in a state where at least a part thereof is exposed to the outside when separated.

That is, in the third embodiment, a semi-elliptical shape in plan view, which opens upward, is formed at a location corresponding to the heel portion in the shoe sole, that is, at a location corresponding to the heel portion of the lower sole 2, and is made of synthetic resin. Nitrogen gas, which is an example of a fluid, is sealed (sealed) in a plastic bag 4A.
Recess 5 having a depth that can accommodate shock absorber 4
Is formed between the left and right side edges and the rear side edge, which are substantially continuous with the U-shaped strip in plan view, and the corresponding side walls 2A and the rear wall portion 2B of the lower bottom 2 in the peripheral edge of the concave portion 5. And shell part 9
Is formed in a substantially U-shaped receiving surface 2C in a plan view for laminating and bonding a part of the lower base 2 in a state where the lower base 2 communicates with the middle position in the front-rear direction of the recess 5 from the inside in the left-right direction.
One of the display members 6 is inserted from the recess 5 side in a state of being in contact with the shock absorber 4 or with a gap therebetween, and is fixed with an adhesive or the like in the mounting portion 7 formed to penetrate therethrough.

The one display body 6 and the mounting section 7 are
As in the embodiment, the inner portion located on the concave portion 5 side is formed in a convex shape in which the width in the shoe front-rear direction is large.

Further, similarly to the second embodiment, the recess 5
A vertical hole 8 is formed in the lower bottom 2 and the outer bottom 1 so as to communicate with the intermediate position in the front-rear direction from above and below.
The other display body 6, which is formed in a flat shape and covers the opening, is integrally formed with the outer bottom 1 in a state where the entire display body 6 is exposed to the outside.

The other configuration is the same as the configuration described in the first embodiment.
The same reference numerals as those of the embodiment are appended, and the description thereof is omitted.

[Other Embodiments] (1) In each of the above-described embodiments, nitrogen gas is sealed (sealed) in the bag 4A made of synthetic resin of the shock absorber 4, but air is used instead of this nitrogen gas. Or other fluid, or may be filled with a fluid other than the other gas such as silicone oil. (2) In each of the above embodiments, the bag 4A of the shock absorber 4 is made of a polyurethane elastomer material.
It may be manufactured using other materials such as polyester elastomer, fluoroelastomer, and vinyl chloride elastomer. (3) In each of the above-described embodiments, a display for recognizing the presence of the shock absorber 4 embedded in the heel-equivalent portion in the shoe sole on the inner outer surface 2a and / or the bottom surface 1a of the shoe sole. Although the body 6 is provided, the display body 6 may be provided on the outer outer surface or the rear outer surface of the shoe sole in a state of being separated from the shock absorber 4 and at least partially exposed to the outside. (4) In each of the above embodiments, the display body 6 is made of a transparent or translucent synthetic resin, but may be made of an opaque synthetic resin, or may be made of a material other than a synthetic resin. Is also good.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of a baseball spike shoe showing a first embodiment of the present invention.

FIG. 2 is an overall perspective view of a baseball spike shoe.

FIG. 3 is an enlarged horizontal sectional view of a shoe sole.

FIG. 4 is a partially cutaway rear view of a baseball spike shoe.

FIG. 5 is an enlarged plan view of the shock absorber and an end view of each part thereof.

FIG. 6 is a sectional rear view of a main part of a baseball training shoe showing a second embodiment of the present invention.

FIG. 7 is a sectional rear view of a main part of a baseball training shoe showing a third embodiment of the present invention.

[Explanation of symbols]

 2 Lower bottom (midsole) 2a Inner outer surface 4 Shock absorber 4A Bag 4a U-shaped outer bag 4b Connecting outer bag 4c Inner bag 4d Fluid inlet 4e Concave 5 Concave 6 Display 6a Upper surface (receiving surface) ) 6b Contact surface 7 Mounting part 9 Cover part

Claims (7)

[Claims] 1. A shoe sole in which a shock absorber formed by filling a fluid in a bag body is buried in a portion corresponding to a heel portion in a shoe sole, and a display for recognizing the presence of the shock absorber. A shoe sole provided with a body separated from the shock absorber and at least partially exposed to the outside. 2. The shoe sole according to claim 1, wherein the display body is provided only on an inner outer surface of the shoe sole. 3. The shock absorber is provided in a concave portion of an upward opening formed in a lower sole, which is a constituent member of a shoe sole, and is connected to the concave portion in a left-right direction. The shoe sole according to claim 1 or 2, wherein a transparent or translucent synthetic resin display body is fixed in a mounting portion penetratingly formed on a side wall of the side wall so as to be in contact with the shock absorber or with a gap therebetween. 4. The shoe sole according to claim 3, wherein the display body and the mounting portion are formed in a convex shape having a wide front-rear width on the concave side. 5. The shoe sole according to claim 3, wherein a part of the upper surface of the display body is formed as a receiving surface capable of receiving a part of the upper part. 6. The display body according to claim 3, wherein a reinforcing contact surface fixed to an inner wall portion of a peripheral portion of the lower portion of the inner wall surface of the mounting portion is formed. Or 1
The shoe sole according to the item. 7. A resin bag, which is a constituent member of the shock absorber, includes a U-shaped outer bag portion substantially along the contour of the heel, and the U-shaped outer bag portion, from both free ends. A connecting outer bag portion formed so as to communicate with a part slightly deviated to the bottom side, and an inner bag portion formed so as to communicate between an intermediate portion of the connecting outer bag portion and a bottom portion of the U-shaped outer bag portion. Wherein the fluid inlet of the bag body is formed at a portion facing a recess formed by the connecting outer bag portion and both free ends of the U-shaped outer bag portion. The shoe sole according to any one of claims 1 to 6.