JP2000342301A - Adjustable shoes - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an adjustable shoe for removing conventional common senses of making a shoe tightening a foot for smooth walking, avoiding conventional problems on the basis of the knowledge that smooth and comfortable walking is achieved with a shoe, if half size to two sizes larger, only by fitting the instep, heel and inner sole to a foot without tightening the foot, matching a foot without excessive press contact and achieving smooth walking without blocking the circulation of the blood in a foot and giving a pain. SOLUTION: An inner mat 3 consisting of a shoe inner sole sheet 9 formed of a foamed synthetic resin sheet elastic pad 8 having shock absorbing elasticity and plastically deformed by the contact pressure of a foot sole is placed on the inner sole 2 of a shoe 1. A facing layered member 6 is detachably provided in layer on the outer face of an instep cover 5 in front of the opening 4 of the shoe and the elastic pad 7 locked to the facing layered member 6 is provided inside the instep cover.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a freely adjustable shoe that does not cause pain due to pressure even if the foot has a disease such as a fish eye, an octopus or a hallux valgus, and that is perfectly aligned without moving the foot in the shoe. About.

[0002]

2. Description of the Related Art In general, when the shape and size of a shoe and a wearer's foot are inconsistent, the foot may be rubbed or pressed by the shoe. A suitable cushioning property is provided between the shoe and the foot, for example, by inserting a pad (pad with cushioning property) into the shoe, thereby preventing the foot from being rubbed or pressed against the foot.

A specific example of a pad is disclosed in Japanese Utility Model Application Laid-Open No. 62-8 / 1987.
There is an insole made of a high-foam polyethylene foam for shoes disclosed in Japanese Patent No. 7505, and this insole has elasticity and required plasticity (plasticity due to creep deformation),
When put on the soles and worn for about two days, a gentle uneven surface corresponding to the foot shape is formed according to the weight, and the uneven surface allows the weight applied to the sole to be dispersed over the entire sole, and a sense of unity It provides comfort to the user.

[0004] Also, the insole, which is a sole for the handicapped,
Usually, a footprint is formed with gypsum or resin, and various materials such as synthetic resin, rubber, felt, cork and the like are combined to form the elastic sheet.

A shoe insole 100 shown in FIGS. 14 and 15 has a foamed polyurethane sheet 1 on an inner bottom base sheet 101 of a shoe made of a synthetic resin plate.
02 are superposed and adhered, and these are covered with leather 103 to have elasticity and hygroscopicity.

[0006] In addition, the portion of the sole of the wearer's foot that becomes keratinized and causes pain during walking (so-called fish eyes and octopus) and deformation due to hallux valgus and the like which require decompression and cushioning are: A hole 104 penetrating the base sheet 101 and the foamed polyurethane sheet 102 is formed, and a concave portion 105 is formed at a predetermined position so as to cover the hole 104 with leather 103 so as to prevent shoe rubbing and pressure stimulation of the sole. I have.

[0007]

However, the round part shown by the dotted line in FIG. 14 is the part 106 where the person who actually wears the insole feels pain, and when the shoe is worn, The part depressurized (concave part 105 shown by a solid line) and the part 1 depressurized when actually walking
06, which indicates that it was not easy for a normal base sheet or foamed polyurethane sheet to prevent pressure stimulation so that the user could be satisfied when actually used.

Further, in the conventional insole for footwear, since the upper of the foot is in close contact with the shoe and locked, the upper of the foot and the inside of the shoe are excessively pressed against each other, causing so-called shoe rubbing.

[0009] It is difficult to completely prevent the foot from shifting in the front-rear direction inside the shoe only by bringing the instep into close contact with the shoe, and in particular, toe loss or other obstacles. It was difficult for the person to walk stably on the insole where the sliding motion back and forth inside the shoe was large.

[0010] In addition, the best medical products at present use a footprint made of gypsum to make an insole based on the footprint. There was a misalignment, and the insoles obtained therefrom were not perfectly matched, so that the wearer had a good feeling of wearing and it was impossible to make shoes that could completely eliminate the pain during walking.

[0011] There are considerable types of fisheye medicine both domestically and abroad, which indicates that a large number of people have fisheye eyes. Fish eyes appear in various places such as the soles of the feet, next to the fingers, between the fingers, etc., and they hurt even with conventional shoes such as sponges, but especially women's shoes have hard inner soles and tighten their feet So you can easily imagine that it hurts quite a bit.

On the other hand, there is a fundamental problem in the structure of shoes. In other words, the above-mentioned conventional shoe pad relates to the insole of the tabi, and is not a form adaptable to the instep portion, and such a pad is formed into a required thickness by the user as necessary. When inserted between the shoe and the instep, there is a problem that the pad peels off from the shoe during walking. In addition, there was also a problem that the fit around the instep, which is important for walking, could not be obtained due to the tightness of the finger around at first. If the height of the upper of the shoe does not match the height of the upper of the shoe, there is a problem such as congestion of the foot, slipping of the foot in the shoe, or heels coming off easily. Walking is disturbed.

[0013] That is, the upper part of the shoe is a place where the pressing force of the upper of the foot constantly changes in a walking state, and the movement of the foot of the pedestrian varies greatly between individuals. For this reason, it is preferable that individuals adjust the thickness and size of the pad applied to the instep, but it is difficult for the wearer to adjust the instep height with shoes other than shoelaces. there were. In addition, the reality of shoe making in lace shoes is that it is cramped at the time of wearing shoes on the high instep because it is especially the middle of the high instep and especially the low instep, and the low instep can not be tightly tightened with only the string There are problems such as not being able to adjust to all the shells.
Further, there is no known shoe that satisfies all conditions for aligning the entire sole and toes with the instep and the inside of the shoe or the inner sole of the shoe.

Conventionally, there is a thick pad for protecting the hallux valgus between the thumb to relieve the pain caused by the hallux valgus. I can't walk smoothly because it isn't perfect. Moreover, the hallux valgus protection pad prevents the painful part of the foot from hitting the inside of the shoe, but the extra weight is applied to the high part of the pad, and the positional deviation increases during walking, causing pain.

[0015] Therefore, an object of the present invention is to eliminate the conventional wisdom of making shoes in which a conventional foot is tightened to walk smoothly, and if the instep, heel, and inner sole are fitted tightly without tightening the foot, a half size is obtained. Based on the finding that even two-size shoes can walk smoothly and comfortably, the above-mentioned problems are solved, the foot and the shoe are aligned without excessive pressure contact, and the blood circulation of the foot is not hindered. An object of the present invention is to provide a freely adjustable shoe capable of walking smoothly without pain. In other words, shoes with elastic pads that can be attached to the insteps and heels of the feet and removable insoles that allow the wearer to adjust the thickness and size of the elastic pads and insoles themselves. To provide.

Another object of the present invention is to provide a shoe in which an elastic pad is attached to the instep portion of the foot so that the heel and the shoe are hard to separate from each other when walking, and the integrity of the foot and the shoe is further improved. is there.

Another object of the present invention is to eliminate the gap between the upper part of the foot and the upper of the shoe to enhance the integrity, and furthermore, the whole sole and toes are further placed on the inside or the inner sole of the shoe. To align and further improve the integrity of the foot and the shoe. The present invention is the same as the conventional shoe matching from limited shoe sizes.

[0018]

In order to solve the above-mentioned problems, according to the present invention, a sheet made of a foamed synthetic resin having an elasticity capable of buffering and being plastically deformed by the contact pressure on the sole surface of the shoe is provided on the inner sole of the shoe. An insole made of an insole-shaped sheet of a shoe formed of a rubber-like elastic pad, and an outer lapping piece is detachably provided on the outer surface of the upper in front of a shoe opening, and the inside of the upper is provided. The elastic pad is provided so as to be engaged with the above-mentioned exterior overlapping piece so as to be freely adjustable.

In the adjustable shoe having the above-described structure, the elastic pad can be attached and detached together with the exterior overlapping piece, and an appropriate pad can be attached at that time, so that the wearer can adjust the thickness and size of the pad by himself.

Further, in the adjustable shoe described above, in order to solve the problem that the heel and the shoe are easily separated during walking, a non-slip elastic pad is fixedly provided inside the heel portion of the shoe. The non-slip elastic pad frictionally engages the wearer's heel, and reliably prevents the heel from slipping off the shoe during walking. In other words, the heels of conventional shoes tend to come off unless the feet are tightened with shoes to make them slip well, making it difficult to walk and making it impossible to walk healthy and causing shoe slippage. Was solved.

Further, the present invention solves the problem of aligning the entire sole and the toe with the inside of the shoe and the inner sole of the shoe. The cushioning elastic pad is formed of a foamed synthetic resin having a cushioning elasticity and being plastically deformed by the contact pressure of a toe, and furthermore, a cushioning elastic pad is provided on the inner sole of the shoe. This is a freely adjustable shoe having an insole made of an inner bottom sheet of a shoe formed of a sheet-like elastic pad made of a foamed synthetic resin having elasticity and being plastically deformed by the contact pressure on the sole surface of the foot. The cushioning elastic pad itself can be freely adjusted according to symptoms such as attachment, detachment and position selection.

As described above, when the cushioning elastic bud which is plastically deformed inside the instep is arranged so as to be in contact with the toe and the insole which is plastically deformed is arranged on the inner bottom of the shoe, the shoe can be used when the shoe is used. The cushioning elastic pad and the sheet-like elastic pad repeatedly press against the toe, and the mechanical strength (the durability evaluated by creep, stress relaxation and fatigue) of the foamed synthetic resin changes, and the toe of the wearer changes. The cushioning elastic pad and the sheet-like elastic pad are plastically deformed so as to conform to the above-mentioned shape. Therefore, the toes are not pressed more than necessary inside the shoes, and the shoes can be applied to those who have deformed toes such as hallux valgus.

In the shoe in which the insole is formed of a sheet-like elastic pad made of a foamed synthetic resin, when the sheet-like elastic pad repeatedly presses against the sole, the shoe is plastically deformed to conform to the shape of the sole. The insole deforms according to the shape of the sole of the wearer who has painful soles such as flat feet, fish eyes and octopus, and the weight is distributed throughout the soles via elastic pads. Stimulation with tenderness on the sole of the foot is unlikely to occur. In addition, since direct sound from outside to a painful part can be prevented when walking, it is possible to walk comfortably without pain.

Further, in order to solve the problem of improving the durability of the insole, the inner sole sheet of the shoe is made of a foamed synthetic resin having elasticity which can be buffered and which is plastically deformed by the contact pressure on the sole surface of the foot. This is a freely adjustable shoe which is formed of a sheet-like elastic pad, and a net-like reinforcing member is integrally provided on the sheet-like elastic pad.

The above-mentioned net-like reinforcing member has an improved tear strength by being integrated on the sheet-like elastic pad, and
The sea-like elastic pad is less likely to be torn, and the durability in use is improved. It can walk comfortably without hindering the direct sound of the painful part from outside walking. It should be noted that the material plate is provided with a mesh or a double-sided tape or other suitable reinforcing member. In addition, it is also possible to attach a suitable surface that expands and contracts such as knit fabric or synthetic leather,
Any material that can be plastically deformed together with the synthetic resin by the contact pressure on the sole surface can be adopted.

Further, according to the present invention, the insole has a required number of small sheets made of the same material as that of the sheet-like elastic pad, depending on the depth of the arch of the wearer, at a position corresponding to the arch on the inner bottom of the shoe. At the same time, one or more inner-sole sheets of the shoe are arranged on substantially the entire inner bottom of the shoe, and the wearer feels pain, and it is necessary to depressurize when wearing the shoe. The adjustable shoe was formed by forming a hole in the inner bottom sheet of the uppermost shoe corresponding to the part considered.

That is, the insole of the freely adjustable shoe is formed by stacking and integrating one or more small sheets made of the sheet material into a portion corresponding to the arch of the inner bottom sheet of the shoe made of the sheet material. The bottom of the seat has a protruding part that can support the arch, and the protruding part is plastically deformed by the tread pressure and is extremely well aligned with the arch. Because of this shape, the upper of the foot and the inside of the shoe have a comfortable wearing feeling without excessive pressing, and the sole of the foot is close to the shoe when walking, making it difficult for the shoe to slide and move forward and backward in the shoe.

Further, by adopting a sheet-shaped material made of a foamed synthetic resin having predetermined plasticity and elasticity as the insole of the adjustable shoe, the insole attached to the shoe is gradually plastically deformed by treading pressure, A concave shape matching the shape of toes and other feet is formed on the upper surface of the sheet material, the foot and the shoe are aligned without excessive pressure contact, and the sheet material comes into close contact with the sole due to its elasticity, so walking Occasionally the soles do not slide back and forth with respect to the shoes.

Even in such close contact with the sole of the foot, since the water-absorbent nonwoven fabric is layered on the sheet-like material and integrated, the insole has high hygroscopicity, and the foot in contact with the insole does not become stuffy. is there.

[0030]

BEST MODE FOR CARRYING OUT THE INVENTION The sheet material made of foamed synthetic resin having plasticity and elasticity which can be deformed by treading and is used for the insole of the shoe according to the present invention is a treading pressure assumed for each individual according to the weight and the area of the sole. (Weight from infant to adult 15-90k
g) is repeatedly applied and deformed by compression, resulting in the shape of the toe of the wearer due to the creep property, stress relaxation property (reduction in stress), or fatigue phenomenon of the synthetic resin, or a combination of these. Plastically deforms to conform.

Specific examples of the plastic elastic plastic synthetic resin capable of plastic deformation include those obtained by foaming polyethylene, polyvinyl chloride, polyurethane and other known soft synthetic resins. In particular, a highly foamed electron beam crosslinked polyethylene foam has a moderate soft elasticity, and the feeling of wearing is preferable.

As a method for crosslinking the polyethylene foam, not only the electron beam irradiation method but also a chemical crosslinking method using an organic peroxide may be used. When foaming is carried out using partially crosslinked polyethylene, a foam having a very high expansion ratio is obtained, and this foam has excellent flexibility at low temperatures and excellent rebound resilience. Examples of commercially available highly foamed polyethylene foam include an electron beam crosslinked polyethylene foam manufactured by Sekisui Chemical Co., Ltd .: registered trademark: Softlon S (10
0% closed cells, expansion ratio 5 to 50 times, average cell diameter 0.2
6 ~ 0.32mm, apparent density 0.025 ~ 0.20g
/ Cm ³ ), especially SOFTRON S # 30 (average cell diameter of 0.
3 mm, apparent density 0.033 g / cm ³ , thickness 3-5
mm).

Such a foamed synthetic resin sheet has some elastic aftereffect in a state of being plastically deformed by the treading pressure, but is deformed by an external force (treading pressure) repeatedly applied near or beyond the elastic limit. Remain, and a plastic deformation state where the deformation does not completely disappear even when the external force is removed. The insole that disperses and averages the weight over the sole of the foot is excellent in absorbing shocks applied to the sole from the outside, and the finger shape enters by plastic deformation, so it is easy to kick out and walking is easy and it is on the knee and waist Good results are produced.

The elastic pad provided in the present invention to be engaged with the exterior overlapping piece has its elastic force and shape (thickness and size).
A well-known elastic material can be appropriately selected so that the wearing comfort can be improved. For example, a material formed by molding a rubber or other elastomer such as urethane rubber into a sheet shape, or a material in which a woven fabric is adhered to both surfaces or one surface thereof can be used.

The cushioning elastic pad according to the present invention has plasticity and elasticity that can be deformed by contact pressure, and uses the same material as the above-mentioned insole made of foam synthetic resin.

The foamed synthetic resin forming the cushioning elastic pad remains deformed when external force (stepping pressure) is repeatedly applied near or beyond the elastic limit, and the deformation does not completely disappear even when the external force is removed. Although it is in a state of plastic deformation, there is a slight elastic after-effect even in a state of plastic deformation due to the contact pressure of the foot such as a tread pressure, and it exhibits shock absorption during walking.

Further, the sheet-like elastic pad for the insole, the elastic pad or the cushioning elastic pad used in the present invention has a hygroscopic property of absorbing a sweat or the like by laminating a woven fabric such as a water-absorbent nonwoven fabric or a knit. May be used. A preferred material for the water-absorbent nonwoven fabric is natural pulp. Natural pulp is tough, durable even when the fiber is repeatedly rubbed on the sole, has good comfort for a long time, and has sufficient moisture absorption, so even people who have a lot of oil secretion It can be used comfortably for a long time.

Further, a granular magnet may be incorporated in the insole. The granular magnet is made of a magnetic material having a well-known granular shape (such as a sphere, an ellipsoidal sphere, a cylinder, a polygonal prism, or a polyhedron) such as a ferrite magnet. The magnetic flux density is not particularly limited, but is, for example, 100 to 3000. Using something of the order of Gauss gives a healthy and favorable one. Such a granular magnet is adhesively fixed to the surface of the insole, or 1-3 mm
It is preferable to embed and fix a part so as to protrude from the surface at a height of about a degree, because the use durability increases.

An embodiment of the present invention will be described with reference to the accompanying drawings.

As shown in FIG. 1, the adjustable shoe according to the first embodiment has an insole 3 on the inner sole 2 of a men's leather shoe 1, and an upper 5 in front of a mouth 4 of the shoe 1. An exterior lap 6 is detachably provided on the outer surface, and an elastic pad 7 is provided inside the upper 5 so as to be engaged with the exterior lap 6.

Here, as shown in FIGS. 2 to 4, the insole 3 is a sheet-like elastic pad 8 made of a foamed synthetic resin having a bufferable elasticity and being plastically deformed by the contact pressure on the sole surface of the foot. The shoe is formed of an inner bottom sheet 9 of the formed shoe, and a small sheet 10 is appropriately laminated on an arch portion of a foot.

As shown in FIGS. 1, 8 and 9,
The upper cover 5 is placed on the outer surface of the upper 5 in front of the mouth 4 of the shoe 1.
An exterior overlapping piece 6 made of the same material as described above is provided, and this exterior overlapping piece 6 is integrally formed with a tongue-shaped support piece 11 that can be inserted into the front edge of the wearing mouth 4 from one end and locked. Things. The support piece 11 employs a foamed urethane rubber sheet, and a tongue-shaped elastic pad 7 formed of a similar material is fixed to the back surface of the support piece 11 by bonding.

On the inside of the heel portion of the shoe 4 of the above-mentioned adjustable shoe, an elongated plate-like elastic pad 12 made of a non-slip soft urethane foam rubber is sandwiched by a bias tape 13 and these are inserted into the shoe 4. The edges are fixed with adhesive.

The outer overlapping piece 6 is formed in the shape of a tongue piece that is warped forward so that pebbles and rainwater do not easily enter the shoe. You can do it. When the exterior overlapping piece 6 is provided for the purpose of decoration, it goes without saying that the form can be adopted without any particular limitation.

The means for attaching the exterior overlapping piece 6 to the wearing mouth 4 is not only locked by inserting the supporting piece 11 as described above, but also by bonding or sticking with a double-sided adhesive tape, or through a sheet fastener. A well-known detachable locking method such as locking or locking with a button or hook can be adopted.

The means for locking the elastic pad 7 attached to the exterior overlapping piece 6 may be a well-known method such as bonding as described above, and two or more elastic pads 7 may be locked by overlapping. .

As shown in FIG. 1, the elastic pad 12 attached to the inside of the heel is attached so that one side of the bias tape 13 wrapping the elastic pad 12 is exposed from below, so that the elastic pad 12 comes into direct contact with the heel. ing. This way,
It is preferable because the frictional engagement force with the heel increases, and in particular, if one side edge is formed so as to increase in thickness in a stepped manner, it is possible to sufficiently frictionally engage with a relatively small area.

As shown in FIG. 2 to FIG. 5, the insole 3 is made of a soft elastic foam synthetic resin sheet 14 (manufactured by Sekisui Chemical Co., Ltd .: Softlon, having a thickness of about 1. A water-absorbent nonwoven fabric 15 (made by Oji Paper Co., Ltd., about 1 mm thick) made of natural pulp is superposed and adhered and integrated on the surface (upper surface of 5 mm) to form a sheet-like elastic pad 8 by cutting this laminated sheet. The inner sole sheet 9 of the shoe is made of the same material as that of the laminated sheet and has a size substantially covering a portion corresponding to the arch of the inner sole sheet 9 of the shoe (small area sectioned by a chain line in FIG. 1). Square small sheet 1 made of
0 (about 5 cm on each side) are stacked to form a part insole corresponding to the arch part of the sole, and these are bonded and integrated.

As shown in FIG. 3, the sheet-like elastic pad 8
An adhesive layer 16 made of an acrylic pressure-sensitive adhesive (adhesive) may be provided on the back surface (the lower surface in the figure), and a release paper 17 may be coated thereon. In this way, a plurality of sheet-like elastic pads 8 can be integrated to easily form an inner bottom-shaped sheet 9 of a shoe having a desired thickness.

By the way, as shown by the chain line in FIG. 2, a granular magnet 18 made of a permanent magnet (ferrite) may be embedded in the insole 3 so as to protrude from the surface of the insole. The magnetic material constituting the granular magnet 18 is a known magnetic material such as a ferrite magnet, and the magnetic flux density is not particularly limited. Is obtained.

To use the shoe insole A of the embodiment in practice and prevent the foot from slipping during walking and preventing the foot and the shoe from being excessively pressed against each other and aligning the user's foot with the shoe, This is performed as shown below. First, as shown in FIG. 4, using shoes of a size about 1 cm (two sizes) larger than usual,
The required number of the small sheets 10 are overlapped (two in FIG. 4) according to the depth of the arch which is depressed in the sole of the wearer, and this is applied to the inner sole 2 of the shoe 1 or the inner sole sheet 9 of the shoe. The arch is fixed to the corresponding part with adhesive or the like. Then, the inner bottom seat 9 of the shoe is mounted on the small seat 10 and the shoe 1 is put on the shoe for about two days.

When the sheet-like material is plastically deformed by the treading pressure and its thickness is reduced to cause an inappropriate gap in the shoe, the sheet-like elastic pad 8 or the small sheet 4 or both of them are further removed. Add one each,
The height of the inner bottom seat 9 of the shoe is raised, and further trial wearing is continued.
In this way, it is preferable to repeatedly perform the trial wearing in which the small sheet 10 and the sheet-like elastic pad 8 are added until the sole of the foot does not completely slide forward and backward inside the shoe during walking.

When pain is caused by symptoms such as fish eyes and octopus on the sole of the sole when performing trial wear, as shown in FIGS. 4 and 5 (a), the uppermost sheet-like elastic pad is used. Holes 19 are formed at important points 8 with scissors or the like. When the insole for shoes of the present invention is used, the location where pain is caused by the compression often forms on the surface of the inner sole sheet 9 of the shoe, and the position where the hole 19 is opened can be easily determined. I can judge.

If the pain still remains after the trial wearing, a similar hole 19 is formed in the second elastic sheet 8 from the top as shown in FIG. 5B. In this case, the hole forming position can be easily determined because the previously formed hole shape is also attached to the second sheet-like elastic pad 8.

The insole prepared according to the individual differences of the wearer through such adjustment is as shown in FIG.
A recess 2 is formed at a location where pain in the sole of the foot is caused by the hole 19.
0 is formed, and the periphery of the concave portion 20 conforms to the shape of the affected part where pain occurs, and the feeling of pressure around the affected part disappears. The arch of the foot is a small insole sheet 10
Because it is locked to the protruding part formed by the thickness of
The foot is fixed so as not to slide back and forth inside the shoe 1, the depressurizing effect of the hole 19 works effectively, and the insole can be used comfortably without any pain.

The water-absorbent nonwoven fabric 1 made of natural pulp
5 (see FIG. 2 and FIG. 3), the necessary dehumidification results can be obtained by adhesively fixing at least the top or bottom surface of the sheet-like elastic pad 8 disposed on the top or the top or bottom surface of the small sheet 10. When a plurality of sheet-like elastic pads 8 or small sheets 10 are laminated, they can be fixed to all the sheet-like elastic pads 8 to be used.

The insole 3, that is, the inner bottom sheet 9 of the shoe
As another embodiment shown in FIG. 6, a sheet-like elastic pad 21 made of a foamed synthetic resin having elasticity capable of buffering and plastically deforming by contact pressure on the sole surface (an electron beam manufactured by Sekisui Chemical Co., Ltd.) Cross-linked polyethylene foam: a laminated body 23 composed of a plurality of laminates 23 each having an elastic sheet 22 (about 1 mm thick) having elastic restorability laminated on the lower surface of Softlon S # 30 (about 2 mm thick). is there.

The sheet-like elastic pad with a net-like reinforcing member shown in FIG. 7 is a material forming the surface layer of the inner sole sheet 9 of the shoe, has a bufferable elasticity, and is plastically formed by the contact pressure on the sole surface of the foot. A deformable synthetic resin sheet-like elastic pad 21 (FIG. 6) is used as a base material, and a net-like reinforcing member 24 is integrally provided thereon.

The thus formed sheet-like elastic pad with a net-like reinforcing member is a shoe in which the insole 3 is hard to be broken during use, and the durability of the inner sole can be improved. And the shoe can be improved to improve the comfort of the shoe.

As shown in FIG. 10 to FIG. 12, another embodiment is a shoe 1 in which a tongue-shaped exterior overlapping piece 25 is provided by folding back, and an upper cover in front of a mouth 4 of a men's leather shoe. A pair of male-type and female-type snap button-type locking parts 26 are attached to the inner surface of the fifth and the tip of the outer overlapping piece 25. The exterior overlapping piece 25, the tip of which is locked by the locking component 26, locks with the elastic pad 27 sandwiched between the upper surface and the inner surface of the upper, and the rear end portion is connected to the outer surface of the upper 5 They are stacked in a folded state and fixed with a planar fastener 28.

The elastic pad 27 is made of the same material as the elastic pads 7 and 12 of the above embodiment. It is preferable to adopt a relatively thin and durable sheet-like material such as leather, synthetic leather, or the like for the exterior overlapping piece 25. Although not shown, only the portion of the exterior overlapping piece 25 that overlaps the outer surface of the upper 5 is formed of the same material as the upper such as leather or synthetic leather, and the other portions are the same as those of the elastic pad 27. If it is made of a soft material, it can be made comfortable and good looking.

As shown in FIG. 13, in the aforementioned shoe,
Further, a tape-shaped cushioning elastic pad 29 having a width of about 1 to 3 cm is fixed to the inner surface of the upper along the edge of the inner bottom so as to be in contact with the toe of the wearer inside the upper 5 by adhesive or the like. The cushioning elastic pad 29 is formed of a foamed synthetic resin (electron beam cross-linked polyethylene foam manufactured by Sekisui Chemical Co., Ltd .: registered trademark: Softlon S) which has cushioning elasticity and is plastically deformed by the contact pressure of the toes. ing.

Further, a foamed synthetic resin in the form of a tape similar to the above is coated on the inner surface of the heel along the edge of the inner bottom with a cushioning elastic pad 30.
The cushioning elastic pad 3 may be further provided on the surface of the inner sole corresponding to the arch of the foot or other partial surface of the inner sole.
1 may be provided. The cushioning elastic pad 31 may be the same as the small sheet 10. By doing so, the heel of the inner surface of the shoe matches the shape of the heel of the wearer, and a chevron that well corresponds to the depression of the arch of the foot is formed on the inner sole, thereby improving the matching. Further, when the cushioning elastic pad 31 is provided on the surface of the central portion of the inner sole, a slight gap is formed around the pad, and there is also an effect that the air permeability in the shoe is improved.

[0064]

As described above, according to the first aspect of the present invention, the insole disposed on the inner sole of the shoe is formed of a predetermined elastically deformable sheet-like elastic pad, so that the entire tabi is made of the shoe. Aligns with the inner sole of the foot, and the weight is distributed throughout the sole via the elastic pad, so that the unpleasant stimulus such as tenderness is not felt on the sole of the wearer, and the elastic inside the upper Since the pad is locked to the removable exterior overlapping piece and provided,
The elastic pad that is locked to the exterior overlay can be attached and detached, making it easy to adjust the appropriate thickness of the pad that can be adapted to the instep portion, and to freely change the pad and change the thickness It has the advantage of being a shoe.

According to the second aspect, there is an advantage that the problem that the heel and the shoe separate during walking can be reliably prevented, and the foot and the shoe can be sufficiently aligned and integrated.

According to the third aspect, inside the upper shell,
When the cushioning elastic pad having a predetermined plastic deformation property is arranged so as to be in contact with the toe, the toe is not pressed more than necessary inside the shoe, and for example, there is a deformed toe such as a valgus. There is an advantage that it can be applied to shoes.

According to the fourth aspect, the impact applied to the sole from the outside can be reliably reduced, and the foot is not excessively tightened by the upper of the shoe.

According to the fifth aspect, the adjustable shoe in which the net-like reinforcing member is integrally provided so as to overlap the sheet-like elastic pad on the inner bottom has the advantage that the tear strength of the sheet is improved and the durability is improved. is there. According to the sixth aspect, if the water-absorbent nonwoven fabric is laminated and integrated, the water-absorbent nonwoven fabric on the surface of the sheet-like material has a high hygroscopic property even when the sole and the insole are in close contact with each other. The touching feet are not stuffy.

According to the seventh aspect, the insole is gradually plastically deformed by the treading pressure and is brought into close contact with the sole by its elastic force. Does not slide forward and backward with respect to the shoe, and furthermore, one or more small sheets are stacked and integrated on the corresponding portion of the arch of the inner bottom sheet of the shoe, so that the above-mentioned good consistency with the sole and close contact While projecting, the protruding part is plastically deformed to a shape that matches the arch part very well, and the foot is hard to slide in the front and rear direction with respect to the shoe when walking,
It is also suitable for flat feet.

[Brief description of the drawings]

FIG. 1 is a partial cross-sectional side view of the adjustable shoe of the present invention.

FIG. 2 is an exploded perspective view of a shoe insole.

FIG. 3 is an enlarged sectional view of a sheet material for an insole.

FIG. 4 is a vertical sectional side view showing a use state of the insole.

FIG. 5 is an enlarged sectional view showing a use state of a sheet-like elastic pad having holes formed therein.

FIG. 6 is a longitudinal sectional view of a shoe for explaining a use state in another embodiment of an insole.

FIG. 7 is a plan view of a sheet-like elastic pad with a rope-like reinforcing member.

FIG. 8 is an exploded perspective view showing parts to be worn around a shoe opening.

FIG. 9 is a perspective view showing a state where components are mounted.

FIG. 10 is an exploded perspective view showing components of another embodiment.

FIG. 11 is a partial cross-sectional side view showing a state where components are mounted.

FIG. 12 is an enlarged sectional view of a main part of the same.

FIG. 13 is a cross-sectional view of a shoe illustrating a use state of still another embodiment.

FIG. 14 is a plan view of a conventional shoe insole.

FIG. 15 is an enlarged sectional view taken along line XX of FIG. 14;

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 shoe 2 inner sole 3 insole 4 slip-in mouth 5 instep 5 expansion ratio 6 exterior overlapping piece 7 elastic pad 8 sheet elastic pad 9 inner bottom sheet 10 small sheet 11 support piece 12 elastic pad 13 bias tape 14 foam synthesis Resin sheet 15 Water-absorbing non-woven fabric 15 Non-woven fabric 16 Adhesive layer 17 Release paper 18 Granular magnet 19 Hole 20 Depression 21 Sheet elastic pad 22 Elastic sheet 23 Laminated body 24 Mesh reinforcing member 25 Overlapping piece 26 Locking part 27 Elastic pad 28 Planar fastener 29 Buffer elastic pad 30 Buffer elastic pad 31 Buffer elastic pad

Claims (7)

[Claims] 1. An insole made of an inner sole type shoe made of a foamed synthetic resin sheet-like elastic pad having a bufferable elasticity and being plastically deformed by the contact pressure on the sole surface, on the inner sole of the shoe. Is arranged, and an exterior lap is detachably provided on the upper outer surface of the shoe in front of the shoe opening, and an elastic pad is provided on the inner side of the upper by engaging with the exterior lap. Adjustable shoes characterized by becoming. 2. The adjustable shoe according to claim 1, wherein a non-slip elastic pad is fixedly provided inside the heel portion of the wearing mouth. 3. A cushioning elastic pad is provided inside the upper so as to be in contact with a toe of a wearer, and the cushioning elastic pad has a cushioning elasticity and a contact pressure of a toe. 2. The adjustable shoe according to claim 1, wherein the adjustable shoe is formed of a foamed synthetic resin that is plastically deformed. 4. The adjustable shoe according to claim 1, wherein the insole comprises an inner bottom sheet of a shoe in which an elastic sheet having elastic restorability is integrally laminated on a lower surface of the sheet-like elastic pad. 5. The adjustable shoe according to claim 1, wherein the insole comprises an inner bottom sheet of a shoe in which a mesh reinforcing member is integrally provided on an upper surface of the sheet-like elastic pad. 6. The adjustable shoe according to claim 1, wherein said insole is an inner bottom sheet of a shoe in which a water-absorbent nonwoven fabric is integrally provided on an upper surface of said sheet-like elastic pad. 7. The shoe according to claim 7, wherein the insole overlaps a required number of small sheets made of the same material as the sheet-like elastic pad according to the depth of the arch of the wearer, at a position corresponding to the arch on the inner bottom of the shoe. Almost all of the inner sole of the shoe was provided with one or a plurality of inner sole-shaped sheets of the shoe, and was considered to be a part where the wearer felt pain, and decompression was necessary when the shoe was worn. 7. The adjustable shoe according to claim 1, wherein a hole is formed in the inner bottom sheet of the uppermost shoe corresponding to the portion.