JP2527500Y2 - Sole structure - Google Patents

Description

[Detailed description of the invention]

[0001]

INVENTION The present invention relates to a women's shoes relates to the structure of the shoe sole of men's shoes, less tired be followed by a standing home state for a long time a good walking feeling, especially in high heels of women's, moreover The present invention relates to a structure of a shoe sole that hardly causes the feet to cool down in winter and blocks geothermal heat in summer.

[0002]

2. Description of the Related Art A shoe sole is formed by laminating and integrating an outsole contacting the ground and an insole supporting a sole.
Outsole forms from the viewpoint of waterproofness and wear leather or rubber plastic materials, sheet materials such as immersion resin containing rigid to withstand bending in terms of stability support legs and preventing Re Original shape the insole is Was used. For the outsole and the insole, in recent years, where the design of shoes is important, those having a reduced thickness and excellent strength and design are used.

[0003]

[Problems to be Solved by the Invention] However, women's shoes and shoes having a heel portion regardless of the men's mouth are thin because the weight of the toe portion tends to be different from sports shoes having relatively flat soles. In the sole shoes, the impact force during walking is transmitted directly to the phalanges and metatarsal bones of the foot, which greatly affects the hips and knees, unknowingly affects the nerves, and is easy to get tired, and in shoes that are tapered, However, there has been a problem that the impact force and the tightening of the toe portion tend to adversely affect health, such as the occurrence of hallux valgus and other abnormalities and abnormal blood pressure.

[0004] Further, shoes with thin soles easily transmit the heat of the ground in summer or the like as they are. Conversely, shoes with thin soles in the cold season in winter tend to cool down from the soles of the feet in winter, resulting in poor blood circulation. was there.

On the other hand, heavy shoes when the thickness of the sole, also bending of ball Lumpur joints metatarsals and phalanges hardly bending soles were those difficult to walk bad.

Further, there is a structure of the sole which impart absorbency of the impact to form the entire sole with a soft cushioning material foam rubber or the like, this compound, abrasion and shapeless Since the outsole is soft And the durability was poor. In addition, since a thick cushion material is used to impart shock absorption and durability, the shoe sole becomes thick and the shoe sole is conspicuous in appearance and lacks a sense of quality. In addition, cushions are also laid in the shoes as an insole to reduce the impact, but the insole is easy to move in the shoes and impairs walking feeling, and the insole is stinking because it directly touches the feet but there has been attached to wear and easy problem.

[0007] The present invention has a good walking feeling, can improve shock absorption and heat insulation without making the sole of the shoe thicker, and has both durability and good walking performance. With the aim of providing a sole structure that can be satisfied
Is what you do.

[0008]

In order to achieve the above object , the structure of the sole of the present invention is characterized in that the sole and the insole of the shoe support at least ball joints of the phalanges and metatarsals. Under the bottom part, a plurality of through holes are provided, and a buffer sheet material is interposed therebetween .
Make a cut along the toe in the center of the sheet
It is characterized by being provided so as to be able to expand in the direction .

[0009]

In the shoe sole structure of the present invention, a plurality of through holes are formed.
The cushioning sheet material is provided, since the disposed below the midsole portion for supporting the ball joint of the metatarsus and at least phalanges of the foot bones and the condyle part in which frequently receives a reaction force when walking The impact is alleviated, and during the bending movement of the ball joint, which is the joint between the phalanges and the metatarsals, the through-holes are formed by the horizontal tensile and compressive forces of the cushioning sheet material. The shape is deformed, and the cushioning sheet material smoothly expands and contracts between the outer sole and the inner sole, and easily follows the bending motion of the ball joint portion and improves the protrusion.

In addition, a heat insulating layer of air is formed between the outer sole and the inner sole by a through hole, which has an effect of preventing the shoe sole from cooling down in winter and shutting off geothermal heat in summer.

Further, a cut along the toe direction is provided at the center of the cushioning sheet so as to be able to expand in the left-right direction.
Therefore , the cushioning sheet material can be easily arranged along the curved surface shape of the shoe sole, and does not spread right and left with the bending of the shoe sole, and the cushioning sheet material does not tear in the shoe sole.

[0012]

1 and 2 show an embodiment in which the structure of the sole of the present invention is used for women's shoes, and an insole 1 for supporting the sole of the foot and an outsole contacting the ground are laminated. A metal plate 1a is embedded in the insole 1 from the arch to the heel, and an upper 4 covering the feet is fixed to the insole 1 with nails and an adhesive. With the insole 1
The cushioning sheet material 3 provided with a plurality of through holes 3a, 3a,... Is disposed on the lower surface of the portion supporting the ball joint portion 7 of the phalange 5 of the foot and the metatarsal bone 6.

A step portion 3b is provided around the cushioning sheet material 3 as shown in FIG. 3, and the fixed portion of the upper 4 on the toe side is accommodated in the step portion 3b, and the portion is bonded with an adhesive. The outsole 2 and the midsole 1 are bonded and integrated so as to sandwich the cushioning sheet material 3 therebetween. A heel member 8 having an appropriate height is fixed to the heel portion of the outsole 2. Also,
An insole 9 made of leather, cloth, or the like in contact with the sole of the foot is adhered on the insole 1.

The insole 1 is formed in a curved shape that fits the sole of the foot, and is a durable synthetic resin or resin-impregnated laminate that can withstand hundreds of thousands of bends following the bending motion of a toe during walking. It is made of a strong material such as paper. The outsole 2 is made of rubber, leather, or synthetic resin with emphasis on durability, lightness, and texture against abrasion.

As the cushioning sheet material 3, a sheet material of foamed synthetic resin having cushioning properties such as urethane foam may be used alone, or a sheet material in which elastic particles such as cork particles are mixed with foamed synthetic resin may be used. Moreover, you may use as a laminated | stacked buffering sheet material which laminated | stacked several sheets of buffering sheets.

The thickness of the cushioning sheet material 3 is preferably 0.7 mm or more in order to provide an effect of absorbing the cushioning force during walking. It is desirable to keep the thickness to 3 mm or less so as not to have an unnatural appearance.

The shape of the through-holes 3a is not particularly limited, and an appropriate shape such as a circle, an ellipse, and a long hole can be adopted. However, as shown in FIG. In this case, the diameter is set to 0.5 to 4.0 mm, and when the shape of the through hole is elongated as shown in FIG.
The through holes 3a, 3a ...
It is desirable that the air inside acts as an air spring between the outsole 2 and the midsole 1 and does not give a sense of discomfort to the sole of the foot.

As shown in FIGS. 3 and 4, the cushioning sheet material 3 has a notch 3c at its center along the toe direction.
The notch 3c is formed at the supporting portion of the metatarsal bone 6 of the insole 1 so as to easily spread right and left. Therefore, when the sole of the foot is bent by the bending motion of the ball joint part 7 which is a connecting portion between the phalange 5 and the metatarsal bone 6 during walking, the notch 3c spreads right and left with the bending of the sole and cushions. Sheet material 3 is in the horizontal direction (width direction of shoes)
Without forcibly being pulled, even with repeated bending,
The cushioning sheet material 3 does not tear.

In the above embodiment, the cushioning sheet material 3
Is provided only below the portion of the insole 1 that supports the ball joints of the phalange 5 and the metatarsal 6 of the toe, but the cushioning sheet material 3 is provided entirely below the insole 1. It is needless to say that it may be provided along.

Further, the structure of the shoe sole according to the present invention can be applied to men's shoes and sports shoes in addition to the above-mentioned women's shoes, and is not limited to the type of shoes.

[0021]

As described above, in the structure of the sole of the present invention, the ball joint portion, which is the connecting portion between the phalange of the foot and the metatarsal bone, is protected from impact by the cushioning sheet material, and the cushioning property is improved. Since the air inside the through hole of the sheet material acts as a heat insulating layer and an air spring, it is possible to prevent the toe portion of the foot from getting tired and to feel fatigue due to impact. , Ease expansion and contraction of the cushioning sheet material with through holes, can be protected less fatigue of foot during walking long standing residence state may kick out with bending movement of the ball joint is smooth.

Further, since the notch along the toe is provided at the center of the cushioning sheet material, the notch opens and closes with respect to the bending of the shoe, smoothens the bending and tears the cushioning sheet material. This has the advantage that good shock absorption and heat insulation can be maintained for a long time without any problem.

[Brief description of the drawings]

FIG. 1 is a partially cutaway perspective view illustrating an embodiment of a shoe sole structure according to the present invention.

FIG. 2 is a sectional view illustrating an embodiment of the structure of the shoe sole according to the present invention;

FIG. 3 is a perspective view illustrating a cushioning sheet material used in the structure of the shoe sole according to the present invention.

FIG. 4 is a perspective view illustrating another cushioning sheet material used in the structure of the shoe sole according to the present invention.

[Explanation of symbols]

 1 Insole 2 Outsole 3 Buffer sheet material 3a Through hole 3b Step 3c Cut 4 Upper 7 Ball joint

Claims (1)

(57) [Scope of request for utility model registration] An outer sole and an insole of a shoe have a buffer sheet material provided with a plurality of through holes interposed at least below an insole part supporting a ball joint part of a phalanx and a metatarsal bone. And integrated inside the cushioning sheet material.
The cut along the toe in the center can be expanded in the left-right direction
The sole structure, which is provided on the Noh .