JP2007202959A - Insole for shoe - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a shoe insole that improves foot supporting property such as shock relief and stability, that maintains initial performance in spite of a long-term use, and whose rigidity, flexibility, deformability, following ability or the like can be arbitrarily varied by a user himself/herself to a user's liking. <P>SOLUTION: In the shoe insole 1, a reinforcing plate 3 made of a hard synthetic resin is laminated on the bottom face of the insole body 2 made of a soft synthetic resin. The reinforcing plate 3 is provided with ribs 31 and openings 32 along the longitudinal direction of the insole 1, wherein the ribs 31 are arranged in a manner striding over the openings 32. The user can cut the ribs 31 by inserting scissors, a nail clipper, etc., into the openings 32 and adjust the rigidity, flexibility, deformability, and following ability of the insole 1 to his or her liking. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  In the insole for shoes, the present invention improves the support for the foot and maintains the initial performance even after long-term use. Furthermore, the performance can be arbitrarily set according to the user's preference. It is intended to be able to change.

2. Description of the Related Art Conventionally, a shoe insole in which a reinforcing plate made of a hard synthetic resin is laminated on the bottom surface of a main body made of a soft synthetic resin is known.
Usually, such an insole has a shape in which an upper surface protective sheet is further laminated on the upper surface of a main body made of a soft synthetic resin, and the side is raised in a cup shape so as to follow the sole.

Laminating a reinforcing plate made of hard synthetic resin on the bottom of the body made of soft synthetic resin is a soft synthetic resin that relieves shock when landing, but there is no soreness when landing, so it can eliminate instability This is because the soft synthetic resin will be damaged when used for a long period of time, and the initial performance cannot be maintained.
Furthermore, the top protective sheet is laminated to improve the feeling of foot contact and the durability of the top surface, and the side is raised in a cup shape so that it can easily follow the sole of the user. is there.

Such conventional insoles for shoes are disclosed in U.S. Pat. Nos. 4,597,196, 4,586,273 and 4,510,700.
However, the insole for shoes provided by these inventions has only a certain performance in rigidity and flexibility.
However, people who use these shoe insoles, even if they are the same shoe size, weight, gender, foot shape (for example, the width of the foot width, height of the arch height, etc.), purpose of use, exercise content Depending on the level, preference, etc., the required performance varies.
Therefore, in the insole for shoes of the same size, it may be possible to prepare multiple products with different rigidity and flexibility corresponding to each individual difference, but in reality it is not practical just by increasing the inventory of goods, it can be implemented There wasn't.

  Further, the applicant has considered providing an insole for a shoe that is further excellent in shock absorption by combining a cushioning structure that can be used for a heel of a shoe of Japanese Patent No. 3337971 with the present invention.

U.S. Pat. No. 4,597,196 U.S. Pat. No. 4,586,273 U.S. Pat. No. 4,510,700 Japanese Patent No. 3337971

  The present invention improves the support for the foot such as impact relaxation and stability, and maintains the initial performance even after long-term use. An object of the present invention is to provide an insole for a shoe that itself can arbitrarily change the performance of the insole such as rigidity, flexibility, deformability and followability.

  The invention of claim 1 is a shoe insole in which a reinforcing plate made of hard synthetic resin is laminated on a bottom surface of a main body made of soft synthetic resin. The reinforcing plate has a rib running in the longitudinal direction of the insole, and an opening. And the rib is a shoe insole arranged so as to straddle the opening.

In the invention of claim 1, because of the presence of the reinforcing plate, the impact on the foot at the time of landing can be received through the soft synthetic resin like the conventionally known plate, so it is possible to ensure impact relaxation and stability, Support for the foot can be improved.
Since ribs are provided in the longitudinal direction of the insole for shoes, the rigidity in the longitudinal direction of the insole for shoes can be improved, and rigidity can be secured without increasing the thickness of the reinforcing plate. Also useful for weight reduction.

The presence of the reinforcing plate lifts, for example, the arch of the wearer, and as a result, a space is created between the bottom surface of the shoe insole and the bottom surface of the shoe.
Accordingly, when the exercise such as walking or running is repeated, the bottom surface of the insole is moved on or away from the bottom surface of the shoe, and this movement ensures air permeability.
Moreover, even if the bottom surface of the insole arrives on the bottom surface of the shoe due to the presence of the rib, a space is secured between the bottom surface of the insole and the bottom surface of the shoe, so that air permeability is not hindered. .

Furthermore, since the ribs running in the longitudinal direction of the shoe insole are arranged so as to straddle the opening provided in the reinforcing plate, when the rigidity of the shoe insole of the present invention is too high, the user can Etc., and the ribs may be cut.
In this way, the rigidity of the portion where the ribs are cut is reduced, so that the reinforcing plate and the shoe insole itself are easily deformed according to the movement of the foot. Therefore, the user can adjust the rigidity, flexibility, deformability and followability of the shoe insole according to his / her preference.
From the above, there is no need to prepare a plurality of shoe insoles having different rigidity and flexibility.

The invention according to claim 2 is the shoe insole according to claim 1, wherein the thickness of the rib running in the longitudinal direction of the shoe insole is smaller than that on the reinforcing plate other than the opening on the opening. is there.
If comprised in this way, when a rib, a nail clipper, etc. are inserted in an opening part and a rib is cut | disconnected, it will become easy to cut | disconnect.

The invention according to claim 3 is the insole for shoes according to claim 1, wherein the main body made of the soft synthetic resin is composed of two or more layers of materials having different hardnesses.
By providing a synthetic resin layer having a higher hardness to the required portion of the soft synthetic resin, the main body having a predetermined performance according to the necessity of the part can be obtained.

A fourth aspect of the present invention is the insole for shoes according to any one of the first to third aspects, wherein an upper surface protective sheet is further laminated on the upper surface of the main body made of the soft synthetic resin.
By laminating the upper surface protective sheet, the foot contact and the upper surface durability can be improved.

According to the invention of claim 5, when the upper surface protective sheet is laminated on the main body made of the soft synthetic resin and the upper surface thereof, the upper surface protective sheet is provided with a through hole, and the through hole is an opening of the reinforcing plate. The insole for shoes according to claim 1, wherein the insole is configured to communicate with a shoe.
By providing the through-hole, heat and moisture generated on the sole can be further diffused, and the inside of the shoe is always refreshed and the leg is less likely to be produced.

A sixth aspect of the present invention is the shoe insole according to any one of the first to fifth aspects, wherein the reinforcing plate is a cup-shaped reinforcing plate so as to follow a sole.
By forming the reinforcing plate in a cup shape, it is possible to receive the impact at the time of landing more reliably, so that the impact relaxation and stability are further improved, and the support for the foot can be further improved.

The invention according to claim 7 is the insole for shoes according to claim 6, wherein a cut portion is provided at a rising portion of the cup-shaped reinforcing plate and a small rib is provided to straddle the cut portion.
If the reinforcing plate is cup-shaped, it becomes a three-dimensional shape, so that the rigidity of this portion is further improved.
Therefore, if a notch is provided at the rising portion of the cup-shaped reinforcing plate, and a small rib is provided to straddle the notch, the user can use the small rib to adjust rigidity, flexibility, etc. Can be cut with scissors or nail clippers.
The cut portion or the like may be provided anywhere on the inner side, the outer side, and the vicinity of the heel of the rising portion, and is not particularly limited.
Since the rigidity of the cup-shaped reinforcing plate is reduced by cutting, the shoe insole is easily deformed according to the movement of the foot. Therefore, the user can adjust to the desired rigidity, flexibility, deformability and followability.

An eighth aspect of the insole for shoes according to any one of the first to seventh aspects, wherein the reinforcing plate is laminated only from the arch portion to the heel portion of the bottom surface of the main body made of a soft synthetic resin.
By providing the reinforcing plate only at a necessary portion of the shoe insole that affects impact relaxation and stability at the time of landing, it is possible to ensure the flexibility of the forefoot and reduce the weight of the entire insole.

The invention according to claim 9 is the insole for shoes according to any one of claims 1 to 8, wherein a rib, an opening, and a notch that run in a longitudinal direction of the insole are provided in an arch portion region of the reinforcing plate. It is.
For shoes that have rigidity, flexibility, etc. according to the user's preference by providing ribs, openings and cuts in the arch area where fine adjustment of rigidity, flexibility, etc. is required, especially in the reinforcement plate It becomes easy to change to an insole.

In the invention of claim 10, the strip corrugated sheets are arranged side by side, and the connecting portions are arranged between the adjacent strip corrugated sheets so that the strip corrugated sheets are connected to each other via the connecting portions. The insole for shoes according to any one of claims 1 to 9, wherein a region is provided in a heel portion of the reinforcing plate.
By comprising in this way, the impact relaxation property of a collar part improves further.
Moreover, since the said area | region is integrally molded with a reinforcement plate, unlike the method of inserting another material, a labor and cost are reduced and it does not shift | deviate like another material.

  As described above, according to the present invention, it is possible to improve foot support such as impact relaxation and stability of a shoe insole, and maintain initial performance with little sag even after a long period of use. Furthermore, the rigidity, flexibility, deformability and followability of the shoe insole can be adjusted to your liking by cutting the ribs that straddle the opening provided in the reinforcement plate by inserting heels, nail clippers, etc. It becomes possible to do.

Embodiments of the present invention will be described below with reference to the accompanying drawings.
FIG. 1 is a view of a shoe insole according to the present invention as viewed from the bottom, and FIG. 2 is an enlarged view of a main part thereof.
As shown in FIG. 3, the shoe insole 1 has a reinforcing plate 3 made of a hard synthetic resin laminated on the bottom surface of a main body 2 made of a soft synthetic resin. Furthermore, in order to improve the foot contact and the upper surface durability, the upper surface protective sheet 4 may be laminated.
The main body 2, the reinforcing plate 3, and the upper surface protection sheet 4 are laminated by bonding, simultaneous molding, or the like.
As the upper surface protection sheet 4, a mesh material, a nonwoven fabric, a woven fabric, a resin sheet, leather, or the like can be used.

The reinforcing plate 3 is provided with a rib 31 that runs in the longitudinal direction of the shoe insole 1 and an opening 32. And the rib 31 is arrange | positioned so that the upper part 32 may be straddled.
The number of ribs 31 and the number of openings 32 may be arbitrarily determined in consideration of the rigidity and flexibility of the reinforcing plate and the breathability of the shoe insole 1.
The shape of the opening 32 is circular in the drawing, but this is also arbitrary, and may be oval, square, or the like.

There is no need for the rib 31 to always be present on the opening 32, and an opening 32 a that is completely unrelated to the rib 31 can be provided. Such an opening 32a can be used to improve the air permeability and reduce the rigidity of the reinforcing plate 3 that has become too high.
Furthermore, an arbitrary number of lateral ribs 33 that connect a plurality of ribs 31 running in the longitudinal direction of the shoe insole 1 in the lateral direction can be provided. The lateral rib 33 is used to increase the lateral rigidity of the reinforcing plate 3.

As a result of trying on the insole 1 for shoes, the user inserts a heel, a nail clipper or the like into the opening 32 and cuts the rib 31 when it is determined that the rigidity, flexibility and the like are high.
Then, since the rigidity of the part which cut | disconnected the rib becomes low, the reinforcement plate 3 becomes easy to deform | transform according to a motion of a leg | foot.
As a result, the rigidity, flexibility, deformability, followability, etc. of the shoe insole 1 can be adjusted.

In addition, in the plurality of ribs 31 provided, if the openings 32 are arranged in a row in a lateral direction perpendicular to the ribs 31, by cutting the ribs 31 of the part, particularly the rigidity of the part can be reduced. Flexibility and the like are greatly improved.
In addition, in the plurality of ribs 31, if the openings 32 are arranged so as to be shifted in the front-rear direction of the ribs 31 so as not to be in a line in the transverse direction perpendicular to the ribs 31, the ribs 31 of the part are cut. However, the rigidity is not so low, and the flexibility does not change extremely.
As described above, the rigidity change of the reinforcing plate 3 can be increased or decreased by adjusting the position of the opening 32 to be arranged.

As shown in FIG. 2, the thickness of the rib 31 is not constant, and the constricted portion 311 may be formed so as to be thin when it is on the opening 32.
If the constricted portion 311 is provided, when the rib 31 is cut by inserting a hook or a nail clipper or the like into the opening portion 32, the narrowed constricted portion 311 can be easily cut.

The reinforcing plate 3 is made of thermoplastic resin such as thermoplastic polyurethane (TPU), polyamide elastomer (PAE), ABS resin, or thermosetting resin such as epoxy resin or unsaturated polyester resin. Moreover, you may be comprised from the fiber reinforced resin which mixed carbon fiber, metal fiber, etc.
The reinforcing plate 3 preferably has a D hardness of JIS K 6253 of 30 to 90, and is preferably about 70 ± 5 in view of an appropriate elasticity and rigidity balance.

In FIG. 3, the main body 2 made of a soft synthetic resin is molded in one layer.
Although not shown, the main body 2 can be made of two or more layers of materials having different hardnesses.
Specifically, by laminating a soft synthetic resin or synthetic resin sheet that has higher hardness than the main part on the upper and / or lower surface of the arch part that requires strength and rigidity, the strength and rigidity of that part can be increased. The main body 2 having optimum performance can be obtained.
Of course, other than the arch portion can be implemented as appropriate.

As the main body 2 made of a soft synthetic resin, a thermoplastic synthetic resin such as ethylene-vinyl acetate copolymer (EVA), a thermosetting resin such as polyurethane (PU), a foam of these resins, a butadiene rubber, A rubber material such as chloroprene rubber or a foam thereof can be used. Furthermore, it can also be comprised from soft elastic members, such as rubber or an elastomer (for example, PAE), or the nonwoven fabric member holding moderate thickness.
And the hardness of the main body 2 in the case of being composed of one layer is usually 30 to less than 65 in terms of ASKER C hardness, and in the case of being composed of two or more layers, the hardness is higher than the main part, and the ASKER C hardness is about 65 to 80 It is preferable that

FIG. 4 is a cross-sectional view taken along line AA in FIG.
In this embodiment, the reinforcing plate 3 is laminated on the bottom surface of the main body 2, and the upper surface protective sheet 4 is laminated on the upper surface.
From this drawing, it can be well understood that the rib 31 on the opening 32 of the reinforcing plate 3 is arranged so as to straddle the opening 32.

The presence of the reinforcing plate 3 lifts, for example, the arch of the wearer. As a result, a space is created between the bottom surface of the shoe insole 1 and the bottom surface of the shoe. Accordingly, when the exercise such as walking or running is repeated, the lower surface of the insole 1 arrives at or moves away from the bottom surface of the shoe, and this movement ensures air permeability.
In this case, as shown in FIG. 4, if the opening 32 is made to communicate with the through hole 5 of the main body 2 and the upper surface protection sheet 4, heat and moisture generated on the sole can be further diffused. Beans are less likely to occur.
Further, since the rib 31 is present, even if the lower surface of the insole 1 arrives on the bottom surface of the shoe, a space is secured between the bottom surface of the insole and the bottom surface of the shoe, so that air permeability is hindered. It will not be done.

In FIGS. 1 and 2, the opening 32 of the reinforcing plate 3 is seen as a double circle. This also indicates that the hole of the opening 32 is larger than the through hole 5 of the main body 2 and the upper surface protective sheet 4. ing. A similar configuration can be understood from FIG.
This is because if the diameter of the hole of the opening 32 is made larger than that of the through-hole 5, even when the reinforcing plate 3 is bonded to the main body 2, even if the bonding position is shifted, the through-hole 5 remains in the reinforcing plate 3. This is in order to make sure that it will not be blocked by.

  The reinforcing plate 3 has a peripheral edge rising so as to follow the sole of the foot so as to have a cup shape. By forming it in a cup shape, it is possible to receive the impact at the time of landing more reliably.

On the other hand, when the reinforcing plate 3 is cup-shaped, the cross-section becomes a three-dimensional U-shape as shown in FIG. 4, and the rigidity in the longitudinal direction of the shoe insole 1 is further improved.
For this reason, as shown in FIGS. 1 and 2, a notch 35 is provided in the rising portion 34 of the reinforcing plate 3, and a small rib 36 is provided to straddle the notch 35.
A user who has determined that the rigidity is high can reduce the rigidity of the shoe insole 1 by cutting the small rib 36 straddling the cut portion 35 with a scissors or a nail clipper.

As shown in FIG. 1, the reinforcing plate 3 may be laminated only from the arch portion to the heel portion of the bottom surface of the main body 2.
If the reinforcing plate 3 is provided only from the arch part to the heel part, which is a necessary part of the shoe insole 1 that affects the impact relaxation and stability at the time of landing, the insole is not hindered. The overall weight can also be reduced.

Moreover, the rib 31, the opening part 32, and the notch part 35 on the reinforcement plate 3 are good to provide in the arch part area | region.
Since the arch portion is particularly required to have rigidity, flexibility, etc., providing the rib 31, the opening 32, and the cut portion 35 in this region is effective for fine adjustment of rigidity, flexibility, and the like.

In the flange portion of the reinforcing plate 3, strip-like corrugated sheets as shown in FIG. 5 are arranged side by side, and the connecting portions are adjacent to each other so that the strip-like corrugated sheets are connected to each other via connecting portions. It is good to provide the area | region B arrange | positioned between strip | belt-shaped corrugated sheets.
By comprising in this way, the impact relaxation property of a collar part improves further.
In addition, since the region is integrally formed with the reinforcing plate, unlike the method of fitting another material, the labor and cost are reduced, and the region does not shift like another material.

It is a bottom view of the insole for shoes which implemented this invention. It is a principal part enlarged view of FIG. It is an explanatory side view showing the lamination state of the insole for shoes of the present invention. It is the sectional view on the AA line of FIG. (1) is a bottom view of the buffer structure provided in the buttocks region, and (2) is a sectional view taken along the line CC.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Insole for shoes 2 Main body 3 Reinforcement plate 31 Rib 32 Opening part 33 Horizontal rib 34 Standing part 35 Cut part 36 Small rib 4 Upper surface protection sheet 5 Through-hole

Claims (10)

In the insole for shoes in which a reinforcing plate made of hard synthetic resin is laminated on the bottom surface of the body made of soft synthetic resin,
The reinforcing plate is provided with a rib running in the longitudinal direction of the insole and an opening, and the rib is disposed so as to straddle the opening.   The shoe insole according to claim 1, wherein a thickness of the rib is thinner on the opening than on a reinforcing plate other than the opening.   The insole for shoes according to claim 1 or 2, wherein the main body made of the soft synthetic resin is composed of two or more layers of materials having different hardnesses.   The insole for shoes according to any one of claims 1 to 3, wherein an upper surface protective sheet is further laminated on an upper surface of the main body made of the soft synthetic resin.   When the upper surface protective sheet is laminated on the upper surface of the main body made of the soft synthetic resin, the upper surface protective sheet is provided with a through hole, and the through hole is configured to communicate with the opening of the reinforcing plate. The insole for shoes according to any one of claims 1 to 4.   The insole for shoes according to any one of claims 1 to 5, wherein the reinforcing plate is a cup-shaped reinforcing plate so as to follow a sole.   The insole for shoes according to claim 6, wherein a notch is provided at a rising portion of the cup-shaped reinforcing plate, and a small rib is provided to straddle the notch.   The insole for shoes according to any one of claims 1 to 7, wherein the reinforcing plate is laminated only from an arch portion to a heel portion of a bottom surface of a main body made of a soft synthetic resin.   The insole for shoes according to any one of claims 1 to 8, wherein a rib, an opening, and a cut portion that run in a longitudinal direction of the insole are provided in an arch portion region of the reinforcing plate. The band-like corrugated sheets are arranged side by side, and the region in which the connecting portions are arranged between the adjacent belt-like corrugated sheets so that the respective band-like corrugated sheets are connected to each other via the connecting portions, The insole for shoes according to any one of claims 1 to 9 provided in a heel part.

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