JP2023136480A - Spacer and healthy shoes - Google Patents

Abstract

To provide healthy shoes that can be worn in the prevention and treatment without applying body weight pressure on the toe, because the pain of the body weight pressure and friction mark in the toe of a disease portion cannot be endured to cause troublesome even in walking when wearing the existing shoes while enduring pain of a hallux valgus, an ingrown nail and a corn of a toe.SOLUTION: Healthy shoes each are provided as follows: a foot breadth dimension of a bottom portion in a spacer 5 is taken enough; the body weight pressure may not be applied on the side of the spacer 5; a thong shaft by a thong for positioning a foot is provided; also, the height of a portion of the spacer 5 is taken equally or more than the height of a foot big toe; the upper 4 is connected with a fastener 6 in an upper edge, and is spread to a degree of covering the toe; and thereby a disease portion is completely protected from the body weight pressure and rubbing.SELECTED DRAWING: Figure 6

Description

The present invention relates to a spacer suitable for alleviating and preventing foot pain such as bunions, ingrown toenails, and corns, and to health shoes using the spacer.

Wearing aesthetically tapered shoes or high heels for many years puts weight-bearing pressure on the toe skeleton, thumb nail, and part of the little finger bone, resulting in deformities such as bunions, bunions, ingrown toenails, and corns. As a result, people find it difficult to walk, and countermeasures and treatments are needed to prevent this from interfering with work, commuting, etc. in daily life.
Various techniques have been proposed to prevent toe pain from the viewpoint of footwear structure. Patent Document 1 describes that it is easy for people with disabilities who have hit their feet or toes to wear shoes, and that it is easy for caregivers to put shoes on people with disabilities who want to keep the inside of the shoe clean or to put their toes on the sole of the shoe. Multi-purpose shoes have been proposed that meet various demands such as fixation. Patent Document 2 describes footwear for preventing bunions and an insole for preventing hallux valgus, which has a thumb stabilizing recess, a heel stabilizing recess, an arch supporting projection, and a metatarsal supporting projection in the insole.

Japanese Patent Application Publication No. 2006-130211 Japanese Patent Application Publication No. 09-140405

The shoes described in Patent Document 1 are said to be easy to wear by people with toe disorders such as bunions because the upper is divided and a zipper is attached to each divided upper. There are multiple units, which makes operation cumbersome and easy to make mistakes. In addition, the insole is equipped with five toe thongs, which are said to have the effect of preventing or preventing bunions because they fix the toes. It is difficult to say that it is easy to insert it into each finger and nose thong. Another problem is that manufacturing costs are high. The footwear and insole for preventing bunions described in Patent Document 2 has an insole that has a thumb stabilizing recess, a heel stabilizing recess, an arch supporting projection, and a metatarsal supporting projection, so that the foot can maintain the stability between the big toe and the heel. Since the position is fixed by the recess, the toe is difficult to move toward the toe side of the shoe, so the big toe can be prevented from being bent inward along the shape of the shoe and become a bunion, or the bunion can be corrected. However, in the case of large or complex movements, the thumb cannot avoid large movements and is subject to impact from all directions. Further, in the shoes described in Patent Documents 1 and 2, prevention of irritation from the upper is not considered.
An object of the present invention is to provide a spacer and a spacer that can prevent or alleviate shock and pressure applied to toes when moving while wearing shoes, and alleviate or eliminate pain caused by symptoms such as bunions and ingrown toenails. Our goal is to provide healthy shoes with fitted shoes. Another object of the present invention is to provide a health shoe whose upper can be separated and used as a sandal.

The invention of claim 1 is a spacer used between a sole and an upper,
The spacer is an elastic molded body having a protective wall formed on the outer periphery of the toe portion of the sole from at least the vicinity of the base of the big toe to the base of the little toe, and the height of the protective wall is equal to the height of the foot. This invention relates to a spacer characterized by being approximately the same height as or higher than the height of the thumb.

The invention according to claim 2 relates to the spacer according to claim 1, wherein the molded body is provided on the entire outer periphery of the sole extending from the front and back ends of the protective wall to the heel.

By forming a gap between the upper and the big toe by the protective wall, it is possible to reduce the frequency and magnitude of impacts from the upper to the toe. Further, the protective wall is made of an elastic molded body, and even if a toe comes into contact with the protective wall, the impact is softened by the elastic molded body exhibiting shock absorbing properties. The spacer may form a protective wall at the tip of the toe, but if the spacer is installed on the entire outer periphery of the sole by extending the front and rear ends of the protective wall, the spacer will protect the sole from the upper. In between, a molded body layer having new shock-absorbing elasticity is formed.
In the present invention, the toe part refers to the part formed at the tip of the toe that crosses from the vicinity of the base of the big toe to the vicinity of the base of the little finger, the heel part refers to the part corresponding to the heel, and the arch part refers to the part of the inner longitudinal arch. This refers to the part from the beginning to the end, and is the part between the toe and heel.

A third aspect of the invention relates to a health shoe including the spacer used between the sole and the upper, and the spacer is an invention relating to a health shoe using the spacer according to the second aspect.

The invention according to claim 4 provides a thong shaft that determines the position of the toe at the crotch part of the big toe and the second toe, and a thong composed of the thong shaft and a thong string behind the thong shaft. The invention relates to health shoes according to claim 3, wherein the thong shaft and the thong string are fixed to the spacer or the sole.

The elastic molded body installed between the sole and the upper has a protective wall at the toe part to protect the toes, and the elastic molded body is placed on the entire outer periphery of the sole up to the heel. The present invention provides new health shoes in which a molded body layer having the following properties is formed and has excellent shock absorption properties. These health shoes have a thong shaft that is held between the big toe and second toe fixed to the toe part, and this thong shaft determines the position of the big toe and other toes, making it easy to move around while wearing the shoes. The toes do not become dislocated, and the toes are less likely to come into contact with the inner wall of the shoe on the left or right front or back, and the shock received from contact with the inner wall of the shoe is reduced, pain in the toes is also reduced, and comfort is greatly improved. be done.
Many of the causes of pain such as bunions, ingrown toenails, corns, etc. are due to weight pressure on the toes, external pressure and rubbing through the upper, so it is possible to prevent toe pain by modifying the shape of footwear. It becomes possible to relax.
If a protective wall is provided on the sole on the toe side outer circumferential edge of the sole from the vicinity of the base of the big toe to the vicinity of the base of the little toe, the protective wall is approximately the same as or higher than the height of the big toe when the shoe is worn. Since the upper is attached to the upper surface of the protective wall, the toes are housed in the space. In addition, by fixing the mounting position of the thong shaft provided at the crotch of the big toe and second toe in a position where the big toe does not come into contact with the surrounding walls, the toes can be prevented from moving by the thong shaft when walking or exercising. It is controlled and contact with the upper or the protective wall is less likely to occur. Therefore, one is protected from pain caused by these contacts. In addition, when walking, the impact is transmitted from the heel to the base of the big toe and to the toes, the balance of walking can be maintained and unstable movements can be changed to more stable ones.
Foot pain is mainly caused by bunions, ingrown toenails, corns, etc., but these pains occur mainly in the toes, so as mentioned above, a protective wall should be placed from the base of the big toe to the base of the little toe. If so, the pain can be prevented.

The invention according to claim 5 relates to the health shoe according to claim 4, characterized in that the spacer and the upper are separably connected by a slide fastener.

The spacer and the upper are connected by a slide fastener (hereinafter simply referred to as a fastener) over the entire outer periphery, and if necessary, if the fastener is opened all around, the spacer and the upper can be separated. As a result, the spacer side has a protective wall and the thong shaft is fixed, so that it is possible to provide shoes that are friendly to people who suffer from pain in toes such as bunion.

The present invention provides a spacer made of an elastic molded body having a protective wall that is installed between the sole and the upper to prevent impact on the toes, and also provides a spacer that is installed between the sole and the upper and is made of an elastic molded body and has a protective wall that prevents impact on the toes. To provide health shoes (hereinafter sometimes simply referred to as shoes) which have a thong provided with a thong shaft to be held between fingers. According to the health shoes of the present invention, the toes hardly come into contact with the side wall of the protective wall or the inner wall of the upper, and the toes are fixed within the shoe and do not shift position even during exercise. , it is possible to effectively prevent shocks from being applied to the toes from inside and outside the shoe. Therefore, the footwear is comfortable for users with diseases such as bunions, minitoes, ingrown toenails, and corns.
In addition, by separating the upper with a zipper and using the sole side part equipped with the spacer of the present invention as a sandal, it is possible to create sandals with good breathability that can prevent the impact on the toes similar to the shoes described above. can be provided.

According to the health shoes of the present invention, in ordinary shoes, the shoes are fixed to the foot by tightening the instep, so there is no movement of the toes, and the upper of the present invention has enough tension to cover the toes and the instep. Because of this, you can use the spacer as if you were holding the bottom of the spacer by putting pressure on your toes starting from the thong.
The health shoes of the present invention have an internal thong similar to when walking in geta, so you can walk with the movement element of kicking the ground with force on your toes, which is healthy and promotes toe movement. It is a healthy shoe with features that have dual functions.

It is a schematic diagram of health shoes using a spacer according to the present invention, (A) is a spacer type (X), (B) is a spacer type (Y), (C) is a spacer type (Z) using a spacer, In addition, (D) represents a healthy shoe that uses a spacer type (W) and has a zipper attached. FIG. 2 is a schematic diagram showing various spacers (X), (Y), (Z), and (W) according to the present invention. FIG. 1 is a schematic plan view of a spacer provided with a thong according to the present invention. FIG. 1 is a schematic diagram showing a state in which the health shoes of the present invention are worn. FIG. 1 is a schematic diagram of a sandal manufactured by separating the health shoes of the present invention with a zipper. FIG. 1 is a schematic side view of the health shoes of the present invention being worn.

The spacer and health shoes of the present invention will be explained using the drawings. However, the present invention is not limited to these.

In FIG. 1, (A) represents a health shoe 1 in which a spacer 5 is attached between a sole consisting of an outsole 2 and a midsole 3 and an upper 4, and the spacer 5 has approximately the same height as the protective wall 10. The type (X) that covers the entire circumference is used. This spacer 5 does not have a bottom surface, and uses the midsole 3 as a foot-resting surface. (B) represents a health shoe 1 in which a spacer 5 is attached between an outsole 2 and an upper 4. The spacer 5 is of type (Y) having a protective wall 10 and a bottom surface 11, and the protective wall 10 is The height is greater than the height of the thumb due to the thickness of the bottom. In FIG. 1(B), the broken line of the spacer 5 represents the bottom surface 11, and the foot is placed on this bottom surface 11. (C) uses a type (Z) in which the midsole 3 gradually thickens from the middle of the outsole 2 to match the shape of the arch of the foot and is attached so that it becomes flat at the heel, and a spacer is used. 5 is attached along the shape of this midsole 3, and the height of the midsole 3 is adjusted so that the combined height of the spacer 5 and the midsole 3 remains approximately the same throughout the entire circumference of the shoe 1. The height of the spacer 5 is small in the portion where the height is large, as in the rear part 12 of the molded body. In (D), the spacer 5 is a minimally formed type (W) that forms a protective wall 10 at the toe area from the vicinity of the base of the big toe to the vicinity of the base of the little finger. The spacer 5 is made slightly higher than the height of the thumb in consideration of the thickness of the bottom surface. The end surface of the spacer 5 is in contact with the midsole 3, the top surface of the spacer 5 and the top surface of the midsole 3 are aligned at the same height, and the end surface of the bottom surface of the spacer 5 is in contact with the thickness of the midsole 3. , the midsole 3 gradually increases in thickness to match the arch of the foot and becomes flat at the heel, as shown by the broken line in Figure 1(D). Further, a removable fastener 6 is attached between the spacer 5 or the upper surface of the spacer 5 and the sole 3 and the upper. One element is attached to the upper surface of the spacer 5, and the other element is attached to the lower surface of the upper by sewing the zipper tape part, and an opening tool consisting of an insert pin and a box pin is attached near the lower part of the ankle. This fastener 6 can also be attached to other shoes (A), (B) or (C).

FIG. 2 shows some examples of spacers 5 used in the health shoes 1 according to the present invention. The usage of this spacer 5 was explained in paragraph 0017. These spacers 5 form a protective wall 10 at least in a portion corresponding to the tip of the toe in order to minimize the pain caused by impact on the toes including the big toe. The toes are placed in a wide space formed by the protective wall 10, the upper 4, the surface of the sole 3, or the bottom surface 11 of the spacer 5.
The spacer 5 needs to protect the toes from impact and provide good comfort, and is made of a material that absorbs impact and has elasticity. Such materials are selected from elastomers such as nylon, ethylene vinyl acetate resin, urethane resin, silicone, and synthetic rubber.
The upper surface of the spacer 5 is in contact with the upper 4, and by giving the toe shape of the upper 4 a rounded bulge, the space above the toes can be enlarged. By holding it, the impact from the upper 4 can be reduced or reduced.
The spacer 5 has a width of approximately 3 mm to approximately 10 mm on the upper surface of the spacer 5 in contact with the upper, and preferably has a width of approximately 5 mm to approximately 15 mm in the type X for the contact surface with the midsole 3. The thickness of the bottom surface of the spacer 5 ranges from approximately 2 mm to 10 mm at the toe, and at the arch and heel, the thickness is usually approximately equal to the height of the protective wall, but if the purpose is to make the heel higher, Several tens of millimeters are selectively used in consideration of the midsole 3. The spacer 5 can be formed by molding the above-mentioned material and integrated with the sole 3 and the upper 4 by bonding techniques such as pressure bonding and glue that are used in the manufacture of shoes.
The spacer 5 forms a protective wall 10 at the toe part to protect the toe from impact, but the remaining part other than the protective wall part (toe part) meets structural, manufacturing, and design requirements. In addition, molded bodies having various shapes including the above-mentioned types (X), (Y), (Z), and (W) are selectively used. In FIG. 2, the inner wall of the spacer 5 is shown to be upright, but it may also be formed into a curved shape along with the bottom surface in pursuit of comfortable wearing comfort, as seen in other insoles. good. Further, a recessed portion may be formed in the heel portion to further maintain stability of the heel.

FIG. 3 is a schematic plan view of the spacer 5 in which a thong having a thong string 9 and a thong shaft 8 is provided on the spacer bottom 11, and FIG. FIG. 2 is a schematic plan view showing the state. The thong shaft 8 is fixed to the spacer 5 or the midsole 3 through a thong shaft hole provided at the toe portion so that the toe does not come into contact with the inner surface of the protective wall 10 etc. even when the shoes 1 are worn and the shoes 1 are worn. Fixed on the back. Similarly, the thong strap 9 is fixed at the rear of the thong shaft 8.
Therefore, during exercise such as walking, the range of movement of the toes within the shoe 1 is limited, and the toes are protected from impact from inside and outside the shoe. Therefore, it is possible to eliminate the pain caused by symptoms such as bunions, ingrown toenails, and corns, as well as the causative factors of these symptoms.

FIG. 5 is a schematic diagram of a sandal in which the upper 4 portion is separated and removed from the spacer 5 and midsole 3 by a zipper 6, and the sole portion is used. A protective wall 10 that protects the toes and a thong shaft 8 that controls the movement of the toes are attached, so that the toes are not irritated by the movement of the toes, and can be used as sandals with good ventilation.

FIG. 6 is a side view showing the health shoe 1 being worn. The midsole 3 is thin near the toes, thicker near the arch, and flat near the heel. On the other hand, the area around the toe of the spacer 5 is covered with a protective wall 10, the bottom of which rises along the shape of the midsole 3, and the area around the heel forms a thin bank-shaped rear part 12 of the molded body. The upper part does not touch the toes and is connected to the upper end of the spacer 5 via a fastener 6.

We provide healthy shoes and sandals that can be worn by people suffering from pain caused by bunions, ingrown toenails, corns, and other diseases without feeling pain, and can be used for prevention or treatment, or as fashion shoes. do.

1 Shoes 2 Outsole 3 Midsole 4 Upper
5 Spacer 6 Fastener 7 Shoe opening 8 Thong shaft 9 Thong string 10 Protective wall 11 Spacer bottom 12 Rear part of molded body 13 Line indicating the boundary between toe and arch 14 Plane fastener

Claims (5)

A spacer used between the sole and the upper,
The spacer is an elastic molded body having a protective wall formed on the outer periphery of the toe portion of the sole from at least the vicinity of the base of the big toe to the base of the little toe, and the height of the protective wall is equal to the height of the foot. A spacer characterized by being approximately the same height as or higher than the height of the thumb. 2. The spacer according to claim 1, wherein the molded body is provided on the entire outer periphery of the sole extending from the front and back ends of the protective wall to the heel. Health shoes comprising the spacer used between the sole and the upper, the spacer comprising the spacer according to claim 2. A thong shaft that determines the position of the toe is provided at the crotch of the big toe and the second toe, and a thong is provided that includes the thong shaft and a thong string behind the thong shaft, and the thong axis and the thong The health shoe according to claim 3, wherein the thong strap is fixed to the spacer or the sole. The health shoe according to claim 4, wherein the spacer and the upper are separably connected by a slide fastener.

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