JP2011019788A - Insole and method of manufacturing the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an insole optimizing the shape according to a shoe by every user, simply manufactured in a short time, and having a size adjusted to a user's foot to be used for women's pumps, and to provide a method of manufacturing the same. <P>SOLUTION: A small bag formed of a flexible sheet material and having an internal space 56 and an opening 51 communicating with the internal space 56, a first material and a second material which start hardening when being mixed, and a viscosity improver are prepared. Subsequently, the first material, the second material and the viscosity improver are mixed and stirred to start hardening, thereby forming a gel-like mixture decreased in flowability. The small bag storing the mixture in the internal space thereof, the opening of which is sealed, is disposed in an insole of the shoe. Subsequently, before hardening of the mixture is completed, a user of the shoe puts on the shoe, and presses the small bag with his sole, so that the shape of an arch space is profiled by the small bag held between the insole of the shoe and the user's sole. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to an insole and a method for manufacturing the insole, and more particularly, to an insole that is a shoe clearance adjuster disposed in a gap between a shoe user's sole and a shoe sole, and a method for manufacturing the insole.

A gap formed between the inner wall of the shoe and the foot of the shoe user when the shoe is worn (hereinafter also simply referred to as “shoe gap”), that is, the volume V _S of the shoe inner space and the shoe inner space. The difference ΔV = V _S −V _L from the foot volume _VL of the portion inserted into the shoe differs depending on the type of shoe. In general, as schematically shown in the graph of FIG. 12, the shoe gap ΔV increases in the order of women's pumps, loafer business shoes, and sneakers.

  If an insole (insole) is arranged on the insole of the shoe to reduce the gap between the shoes, the foot does not move in the shoe and the effect of improving the comfort of the shoe is obtained.

  Conventionally, various proposals have been made on insoles for shoes, but most of them are applied to sneakers and loafers and business shoes having a relatively large gap between shoes. Moreover, as shown in the explanatory diagram of FIG. 13, the full insole type disposed in the entire region 7 of the insole 2 of the shoe or the half region disposed in the region 6 on the heel side of the arch portion 3. Most are insole type.

  For example, in Patent Document 1, a curing agent is injected into an insole housing into which an uncured resin has been injected to start curing of the resin, and a foot is placed on the insole housing and shaped by the bottom of the foot. A method of manufacturing an insole by retaining the is disclosed.

  An insole arranged in a partial region including the arch portion has also been proposed. For example, Patent Literature 2 proposes a shoe gap adjusting pad molded using a mold.

Japanese Patent Publication No. 5-504701 JP 2003-116603 A

  A conventional insole (order insole) is thicker than a ready-made insole, has a complicated structure, and has a thick and large base material to be placed in a shoe. In addition, the production of an insole requires a large dedicated device. Therefore, it can be made only for a limited number of shoes. For most of the remaining shoes, there is no extra space for anything other than the feet, so no new large insole can be placed. It is impossible to make a conventional custom insole, especially for women's elegant shoes.

  Shoes with a lot of gaps and low heels are basically easy to wear, but elegant shoes for women and fashionable pumps with high heels give priority to fashion, so Because it is narrow and the heel is high, the foot slips down to the front (toe side), and in terms of comfort, the shoes are only badly conditioned and are harsh on the feet that go inside The pain is full. It is these women's shoes that need help in some way.

  The present invention pays attention to the problem of elegant shoes with almost no gap among women's shoes, especially pumps with high heels, and with minimal volume and change in pressure from all directions, The aim is to provide an insole that can change its shape freely according to its shape.

  That is, as in Patent Document 1, a full insole type insole or a half insole type insole disposed in the entire insole of a shoe generally has a large thickness of a base material in contact with the insole of the shoe. It cannot be used as it is for women's pumps with a small gap. You can use shoes that are larger than the size that just fits the user's feet, but the extra shoe gaps are created, so use the insole with the shoe gaps adjusted optimally (reduced). Is difficult.

  In the method of Patent Document 1, since the resin is cured, the shape defined by the bottom of the foot is maintained. Therefore, it is necessary to continue to place the foot on the insole housing until the resin is cured. Takes time to complete.

  In the method of Patent Document 1, a syringe is inserted into the insole housing to inject a curing agent, or the resin and the curing agent are stored in separate storage containers in the insole housing, and the storage container is inserted with a needle or a pin. Therefore, a complicated process such as forming an opening and mixing and a complicated structure are required, which is not practical.

  Furthermore, if the uncured resin and the curing agent cannot be mixed uniformly, relatively hard parts and soft parts will be formed, and the comfort will be deteriorated. When it has a foot-shaped substrate to cover, it is difficult to mix uniformly.

  The shoe clearance adjustment pad of Patent Document 2 is an off-the-shelf product, so even if the shoe clearance can be adjusted to some extent, the shoe clearance is optimized individually depending on the type of shoe and the shape of the arch of the shoe user. Can not be adjusted.

  In particular, women's pumps and sandals are available for off-the-shelf shoes that optimally adjust the gap between shoes because products with a variety of designs with different heel heights and curved shapes of the insole are provided depending on the fashion. Providing a gap adjustment pad is not practical.

  In view of such circumstances, the present invention can optimize the shape for each user according to the shoe, can be easily manufactured in a short time, and is a women's pump of a size that exactly fits the user's foot. It is intended to provide an insole and a method for producing the same.

  In order to solve the above-described problems, the present invention provides an insole configured as follows.

  The insole is formed of (a) a flexible sheet material having an internal space and having a size and shape substantially corresponding to an arch that is a part of a sole, and (b) the inside of the sachet. And an elastic filler housed in the space.

  According to the above configuration, since the insole does not have a foot-shaped substrate that is inserted into the shoe so as to cover the entire insole of the shoe, the insole can be used for a shoe that has almost no gap when worn. In other words, the insole has a size and shape substantially corresponding to the arch that is a part of the sole, so even if the shoe has almost no gap when worn, the insole is in contact with the arch part of the shoe and the arch part of the sole. It can be arranged in a small space between them. The insole has a small space between the shoe sole and the arch of the sole, because the sachet is made of a flexible sheet material and the inner space of the sachet contains an elastic filler. Can be freely deformed along.

  In addition, since the sachet is formed of a flexible sheet material, the first material and the second material that start to be cured when mixed are placed in the inner space, and the sachet is sandwiched from the outside, whereby the material in the inner space is obtained. Can be mixed easily. By forming the elastic filling material stored in the inner space of the sachet with an appropriate amount of the first material and the second material that start curing when mixed, the shoe and the foot of the shoe user An insole optimized for the above can be easily produced.

  Moreover, in order to solve the said subject, this invention provides the manufacturing method of the insole comprised as follows.

  The manufacturing method of an insole is a manufacturing method of the partial insole arrange | positioned in the arch space between the insole of a shoe, and the arch part of the sole of the user who is wearing the said shoes. The insole manufacturing method includes: (a) a sachet formed of a flexible sheet material and having an internal space and an opening communicating with the internal space; and a first material and a second material that start curing when mixed; A first step of preparing a thickener; and (b) a gel in which fluidity is lowered by mixing and stirring the first material, the second material, and the thickener to start curing. A second step of forming a pouch-like mixture, the pouch having the mixture stored in the internal space and the opening sealed, and disposed on a shoe sole corresponding to the arch space; (c) Before the curing of the mixture is completed, a user of the shoe with the sachet placed on the insole wears the shoe, presses the sachet with the sole of the user, the shoe insole and the user The arch space is shaped by the sachet sandwiched between the sole of the foot and the third shape. And a step.

  In the second step, even if the mixture formed outside the sachet is stored in the sachet, the first material, the second material, and the thickener are stored in the inner space of the sachet and then mixed and stirred to form the mixture. May be.

  In the third step, the shape of the insole of the shoe is transferred to the lower surface of the pouch, and the shape of the sole of the user is transferred to the upper surface. Thereby, a shape can be optimized for every user according to shoes, and it can use also for the pumps for women of the size which just fits a user's leg.

  By adding a thickener to the mixture and making the mixture into a gel, the mold can be formed in a short time in the third step. That is, even if the pressing by the sole is released, the mixture retains its shape. Therefore, a partial insole can be manufactured easily in a short time.

  As in Patent Document 1, there are two chambers where the resin and the curing agent are separately provided between the upper and lower two substrates, and the thick insole that touches the entire sole is elegant regardless of whether it is male shoes or female shoes. As for the casual shoes, the range in which they can be produced is considerably limited, and it is impossible to produce them in the women's pumps with high heels.

  On the other hand, according to the present invention, a small bag made of a flexible sheet material having a small overall shape and a total volume is disposed on the insole of the shoe corresponding to the arch space, so that it can be produced in any narrow space. Thus, it is possible to produce an extremely thin and small insole that was not found in conventional insole. In addition, since the insole is arranged at a part of the insole of the shoe, it is very easy to move for position adjustment in the shoe.

  Moreover, since the gel-like mixture which has already started curing is pressed directly on the soles through the sachets, the time from the start of the operation to the end of the operation (completion) is, for example, about 20 to 30 minutes. , Can be very short.

  Furthermore, by making the mixture into a gel form, a complicated apparatus is not required and the volume can be reduced. By placing this gel-like mixture in a roughly arch-type sachet, there is no need for a large base material that touches the entire sole, and it is placed in a small space between the sole and the sole of the shoe. Further reduction in volume can be realized as possible.

  Preferably, the first material and the second material are a main component and a curing agent of a two-component addition reaction liquid silicone rubber that cures at room temperature, and the thickener is premixed with the curing agent.

  In this case, by mixing the curing agent and the thickener in advance, compared with the case where the three materials of the first material, the second material, and the thickener are separately prepared, The number of types can be reduced, and the preparation of materials, mixing and stirring operations become easy. Thickeners are less likely to react with hardeners than base agents, so mixing thickeners and hardeners enables long-term storage in a mixed state rather than mixing thickeners and base agents. .

  In addition, the gel-like mixture in which the main component of the two-component addition reaction liquid silicone rubber and the curing agent and the thickener are mixed has an original, fast-curing property as compared with the liquid silicon. Heating with a drier or the like dramatically increases the fast-curing property. When the foot is pressed and then heat is applied, it solidifies extremely fast, about 5 minutes at the fastest until it completely solidifies. Furthermore, even after solidifying completely, it becomes a rubber-like solid having appropriate elasticity.

  According to the present invention, the shape can be optimized for each user in accordance with the shoes, it can be easily manufactured in a short time, and it is also used for a female pump having a size that fits the user's foot. be able to.

(A) A perspective view of an insole member, (b) A perspective view of an auxiliary member. Example 1 It is a top view of an insole member. Example 1 It is a fragmentary sectional view of shoes which shows arrangement of an insole member. Example 1 It is the perspective view of (a) of the insole member before pressing, (b) Sectional drawing cut | disconnected along line AA ', (c) Sectional drawing cut | disconnected along line BB'. Example 1 It is the perspective view of (a) of the insole member after pressing, (b) Sectional drawing cut | disconnected along line AA ', (c) Sectional drawing cut | disconnected along line BB'. Example 1 It is sectional drawing of an insole member. Example 1 It is a top view of a surface sheet material. Example 1 It is a top view of a surface sheet material. Example 1 It is a top view of an insole member. (Example 2) It is (a) back view and (b) surface view of an insole member. (Example 2) It is explanatory drawing about shoes with high heel. (Example 2) It is a graph of the crevice between shoes. (Conventional example) It is explanatory drawing of an insole. (Conventional example)

  Hereinafter, embodiments of the present invention will be described with reference to FIGS.

  Example 1 First, Example 1 will be described with reference to FIGS.

  As shown in the plan view of FIG. 2, the insole member 10 used for the insole is disposed on the arch portion of the insole 2 of the shoe. The insole member 10 is formed into a bag shape with a flexible sheet material, and a material having moderate hardness and elasticity (that is, a filler) is accommodated therein, and is formed according to the shape of the arch of a shoe user. The

  The manufacturing procedure of the insole using the insole member 10 is as follows.

  First, as shown in the perspective view of FIG. 1, an insole member 10 and an auxiliary member 20 are prepared.

  As shown in FIG. 1A, the insole member 10 is a bag-like member in which a protruding piece 16 protrudes from a main body portion 12 having a storage space of a size and shape that can be disposed on the arch portion of a shoe. It is formed of a flexible sheet material. A first member is sealed in a storage space inside the insole member 10. As shown in FIG. 1B, the auxiliary member 20 is an elongated bag-shaped member, and the second material is sealed inside. The first material and the second material each include one of a two-component mixed resin material that starts curing when mixed. You may make it include a hardening accelerator, a coloring agent, etc. in 1st material or 2nd material. The insole member 10 and the auxiliary member 20 are produced using a resin sheet, for example.

  Next, the first material and the second material are mixed and stirred to start curing. That is, the projecting piece 16 of the insole member 10 is cut as indicated by a chain line 18, and the distal end portion 26 of the auxiliary member 20 is cut as indicated by a chain line 28. Then, as shown by the arrow 19, the distal end portion 26 side of the auxiliary member 20 is inserted into the projecting piece 16 of the insole member 10, and the main body portion 24 of the auxiliary member 20 is rubbed with a finger to apply the second material. Squeeze out and move to the insole member 10 side. Then, in a state where the projecting piece 16 of the insole member 10 is closed by bending or the like, the main body portion 12 of the insole member 10 is squeezed by hand, and the first material and the second material stored in the inside of the insole member 10 are removed. The material is mixed and stirred to start curing.

  Next, as shown in the partial cross-sectional views of FIGS. 2 and 3 (a), the insole member 10 containing the mixture of the first material and the second material is disposed on the arch portion of the insole 2 of the shoe, The user of the shoe wears the shoe and presses the insole member 10 with the sole of the user. As a result, the insole member 10 is deformed along the shape of the sole of the user, and the three-dimensional shape of the sole of the user is modeled on the insole member 10.

  Specifically, before placing the insole member 10 on the shoe sole 2, the peripheral edge of the insole member 10 is pressed with a finger, and a perspective view of FIG. 4A and a line AA ′ of FIG. As shown conceptually in FIG. 4B, which is a cross-sectional view taken along the line BB ′ of FIG. 4A, and FIG. 4C, which is a cross-sectional view taken along the line BB ′ of FIG. The mixture of the first material and the second material housed inside is moved to the central portion 14 to keep the top portion 15 high. Thereby, when the insole member 10 is disposed on the insole 2 of the shoe, the shape of the insole member 10 is generally matched to the three-dimensional shape of the sole. In FIG. 4A, contour lines are added to the central portion 14 of the insole member 10.

  Thereafter, the insole member 10 is pressed by the sole of the user wearing the shoes, and is, for example, a perspective view of FIG. 5A and a cross-sectional view cut along line AA ′ of FIG. As conceptually shown in FIG. 4C, which is a cross-sectional view taken along the line BB 'in FIG. 5B and FIG. 5A, the top 15 is lowered by being pushed by the sole. Thus, the mixture of the first material and the second material housed in the insole member 10 spreads around, and the three-dimensional shape of the sole, that is, the three-dimensional shape of the arch is modeled on the insole member 10. In FIG. 5A, contour lines are added to the central portion 14 of the insole member 10.

  Since the insole 2 of the shoe is curved as shown in the sectional view of FIG. 6, the bottom surface of the insole member 10 is actually a curved surface in many cases, but in FIGS. The bottom is schematically shown.

  Next, when the predetermined time has elapsed and the mixture of the first material and the second material stored in the insole member 10 in which the shape of the arch has been molded is cured, the molding of the insole member 10 is completed. That is, it is formed so as to have an internal space using a flexible sheet material, and is cured as an elastic filler in the internal space of a sachet having a size and shape substantially corresponding to an arch that is a part of the sole. An insole containing the mixture of the first material and the second material is completed.

  The molded insole member 10 is used as a partial insole type insole as it is or after further processing.

  That is, the molded insole member 10 is used as an insole in a state where the molded insole member 10 is arranged as it is on the insole of the shoe used for molding. Or the shape | molded insole member 10 is arrange | positioned in shoe insoles other than the shoe used for shaping | molding, and it uses as an insole.

  The molded insole member 10 is molded into an optimum shape for the shoe used for molding, but the insole member 10 has elasticity, so even if it is put in other shoes with slightly different insole shapes, Can be used practically enough as an insole. In other words, even if the molded insole member 10 is arranged and used on the insole of a shoe other than the shoe used for molding, the shape of the sole of the user's foot is larger than the conventional shoe gap adjustment pad of the conventional example. As it fits, it has several steps as an insole.

  Further, after the insole member 10 is molded, it may be used after being further processed.

  For example, as shown in the cross-sectional view of the main part in FIG. 3B and the plan view in FIG. 7, a surface sheet material 30 that covers the insole member 10 is attached to the molded insole member 10 so that the insole member 10 can be seen. In such a state, the shoe is used by being placed on the insole 2 of the shoe used for forming the insole member 10 or the insole of the other shoe. In this case, as shown in the plan view of FIG. 8, a logo mark 32 may be arranged on the surface of the surface sheet material 30 that can be seen from the outside to enhance the design, and a symbol 34 for distinguishing left and right is added. Also good.

  A double-sided tape with different adhesive properties between the front and back surfaces may be attached to the back surface of the top sheet material 30. In this case, the side with the strong adhesive strength of the double-sided tape is attached to the surface sheet material 30, the insole member 10 is covered with the surface sheet material 30, and the side with the weak adhesive strength of the double-sided tape is attached to the insole 2 of the shoe. To do. Accordingly, the insole member 10 is held so that the position of the insole member 10 with respect to the insole 2 of the shoe does not shift. Further, when a double-sided tape having an appropriate adhesive strength is selected, the surface sheet material 30 can be easily peeled off from the insole 2 of the shoe, and can be attached again. If the double-sided tape attached to the surface sheet material 30 is also attached to the insole member 10, when the surface sheet material 30 is peeled off, the surface sheet material 30 remains attached to the insole member 10, Both the top sheet material 30 and the insole member 10 can be peeled off simultaneously.

  Or if the insole member 10 is arrange | positioned between the main base material 4 of shoes, and the insole sheet | seat material 3 of shoes as shown in the principal part sectional drawing of FIG.3 (c), the insole member 10 will be from the outside. It can be used in an invisible state. In many shoes, the insole sheet material 3 of the shoe is not firmly bonded to the sole base material 4 of the shoe and can be easily peeled off. Can be used.

  <Specific example 1> It is preferable that the first material and the second material include a material that cures at room temperature when mixed so that the above-described series of work procedures can be easily performed. In addition, the first material and the second material preferably have appropriate hardness and elasticity after curing so that a good fit can be obtained when the completed insole is used. Preferably, the test method (DIN 53505) is 20-30. The two-component addition-reaction liquid silicone rubber used for mold preparation satisfies these two conditions and can be suitably used as a material included in the first material and the second material.

  The agent A (main agent) of the two-component addition reaction liquid silicone rubber is accommodated in the auxiliary member 20, and the agent B (curing agent) is accommodated in the insole member 10. A thickener is accommodated in the insole member 10 in the state mixed beforehand with the B agent (curing agent). The agent A may be accommodated in the insole member and the agent B and the thickener may be accommodated in the auxiliary member. However, the agent A has higher fluidity than the agent B and the thickener, and thus flows easily. It is preferable that the thickener is stored in the insole member because the material can be easily transferred from the auxiliary member to the insole member.

  When producing the insole, the second material (A agent) stored in the auxiliary member 20 is transferred to the insole member 10, and then the insole member 10 is crushed by hand for about 1 minute to obtain the first material (B agent and thickening agent). Agent) and the second material (agent A) are mixed and stirred to form a gel-like mixture with reduced fluidity. Generally, after mixing agent A and agent B, a thickener is added and further mixed. However, if the agent and B agent are stored in the insole member, the agent is added and mixed. Is unnecessary, and the working time can be shortened.

  Next, the insole member 10 is placed on the arch portion of the insole 2 of the shoe, the user of the shoe inserts the foot into the shoe, and the insole member 10 is stepped on the sole for about 2 to 3 minutes. 10 to mold the sole shape. At this time, the user gives instructions to the user for proper operation so that the user can move his / her weight back and forth, and change the angle of the foot while the foot is inserted into the shoe, and the sole presses the insole member It is preferable to accurately mold the shape of the sole while changing the state to be performed.

  After about 5 minutes from the start of mixing the first material and the second material, the material in the insole member hardens to some extent, so that the user can take off the shoes without changing the shape of the insole member. become able to.

  After waiting about 30 minutes from the start of mixing of the first material and the second material, the gel-like mixture in the insole member is sufficiently cured and solidified into a rubbery shape. There is no breakage.

  Two-component addition reaction Liquid silicone rubber A agent (main agent), its B agent (curing agent), and a gel-like mixture mixed with a thickener, the original, fast-curing properties compared to liquid silicon However, with a simple heat treatment, for example, heating with a dryer, the fast-hardening property is dramatically faster. After pressing the sole, when heat is applied, it is extremely fast, about 5 minutes at maximum, until it hardens completely. It can also be solidified. Furthermore, even after solidifying completely, it becomes a rubber-like solid having appropriate elasticity.

  A series of operations for molding the insole member 10 in this way can be easily performed at room temperature, and no special instrument or device is required. The required time is an example, and varies depending on the temperature and additives.

  <Example 2> The insole members 50a and 50b of Example 2 will be described with reference to FIGS.

  FIG. 9 is a plan view of the insole members 50a and 50b. As shown in FIG. 9, the insole members 50a and 50b have a bilaterally symmetric shape, and are disposed on the arch portions of the left and right shoe insoles 2a and 2b. The insole members 50a and 50b have a sheet material folded in two at the folding lines 52a and 52b, and an adhesive portion 55 to which the folded sheet material is bonded is continuous from one end of the folding lines 52a and 52b along the outer peripheral edge 58. Opening 51a, 51b is formed in the other end side of folding lines 52a, 52b. The insole members 50a and 50b have substantially semicircular main body portions 54a and 54b and projecting piece portions 53a and 53b that continue along the folding lines 52a and 52b. The insole members 50a and 50b can be manufactured, for example, by thermocompression bonding in a state where the sheet material is folded in half and then cut into a predetermined shape using a mold or the like.

  A storage space 56 is formed by the main body portions 54a and 54b, and the storage space 56 communicates with the openings 51a and 51b.

  The insole members 50a and 50b can be used in the same manner as in the first embodiment.

  For example, after supplying a predetermined amount of a first material and a second material that start curing when mixed into the storage space 56 from the openings 51a and 51b of the insole members 50a and 50b using a dispenser, The sheet material 53a and 53b which is folded in half is thermocompressed and sealed, and the storage space 56 is sealed.

  When a thickener is mixed in advance in at least one of the first material and the second material, and the first material and the second material are mixed and stirred, a gel-like mixture with reduced fluidity can be formed. To do.

  Specifically, by twisting the front and back surfaces of the projecting pieces 53a and 53b in opposite directions, the mouths of the openings 51a and 51b are opened, and the spout of the dispenser is inserted there, and the first material and the second material are put together. A predetermined amount is supplied.

  Then, the sheet material of the projecting pieces 53a and 53b is sealed by thermocompression. The sheet material in the vicinity of the boundary line between the main body portions 54a and 54b and the projecting piece portions 53a and 53b may be sealed by thermocompression, and the projecting piece portions 53a and 53b side may be cut and removed from the thermocompression bonding portion. Instead of thermocompression bonding, the storage space 56 may be sealed by bending the projecting piece portions 53a and 53b.

  For example, as shown in FIG. 9, along the chain lines 53p and 53q passing through the bent portion of the outer shape between the projecting piece portions 53a and 53b and the main body portions 54a and 54b and the tips of the symbols 64a and 64b. The protruding pieces 53a and 53b are bent. At this time, it is preferable that the projecting piece portions 53a and 53b be bent to the lower side, that is, the inner bottoms 2a and 2b side of the shoe, and sandwiched between the main body portions 54a and 54b and the inner bottoms 2a and 2b.

  Instead of using empty insole members 50a and 50b, as in Example 1, a predetermined amount of a two-component addition reaction liquid silicone rubber B agent (curing agent) and a thickener are mixed in advance in the insole member. Prepare an auxiliary member that is hermetically stored and hermetically stores the A-component (main agent) of the two-component addition reaction liquid silicone rubber. The insole member and the auxiliary member are opened at the time of production, and the auxiliary member is placed in the insole member. After supplying the agent A (main agent), the storage space of the insole member may be sealed. In this case, it is easy to prepare a suitable amount of mixture by preparing multiple types of auxiliary members with different contents of agent A (main agent) and selecting the type of auxiliary member according to the shape of the soles or shoes. Can be produced.

  Next, in the state where the storage space 56 is sealed, the insole members 50a and 50b are squeezed, and the first material and the second material stored in the storage space 56 are mixed and stirred.

  Alternatively, the first material and the second material are mixed and stirred outside the insole members 50a and 50b, and the mixture of the first material and the second material is supplied to the storage space 56 from the openings 51a and 51b. The storage space 56 may be sealed by thermocompressing or bending the portions 53a and 53b.

  Insole members 50a and 50b are arranged at predetermined positions on the shoe soles 2a and 2b in a state where the mixture of the first material and the second material is stored in the storage space 56. That is, the main body portions 54a and 54b of the insole members 50a and 50b are disposed on the arch portions of the shoe insole 2a and 2b, and the folding lines 52a and 52b of the insole members 50a and 50b are the outer circumferences of the shoe insole 2a and 2b. The protrusions 53a and 53b of the insole members 50a and 50b are arranged on the toe side.

  The user puts his / her foot into the shoe, presses the insole members 50a and 50b with the sole, and molds the shape of the sole with the insole members 50a and 50b.

  In particular, as shown in the explanatory view of FIG. 11, when the insole member 50 is formed in a shoe 70 having a high heel 74, the insole member 50 is arranged so as to be shifted to the heel 84 side of the user's foot 80.

  That is, as shown in FIG. 11A, an arch space 76 is formed between the arch portion 82 of the sole of the user's foot 80 and the shoe sole 72. The insole member 76 is disposed in the arch space 76, but is not disposed at the center of the arch space 76, but is shifted to the heel 74 side as shown in FIG. In this state, when the insole member 50 is pressed by the sole of the user's foot 80, the insole member 50 is placed on the arch portion 82 of the sole of the sole of the user's foot 80 as shown in FIG. A gap 77 is formed between the toe 86 side of the arch portion 82 on the sole of the foot of the user's foot 80 and the insole 72 of the shoe.

  The insole member 50 arranged at the position of FIG. 13C hits the heel 84 side of the sole of the foot 80 of the user of the shoe 70 and prevents the foot 80 from sliding down to the toe 86 side. As a result, the comfortable wearing surface of the shoe 70 having a high heel 74 is greatly improved. Further, since the gap 77 is formed on the toe 86 side, it is possible to prevent excessive pressure from acting on the foot 80 during walking.

  FIG. 10A is a rear view of the insole member 50b for the left foot, and FIG. 10B is a front view thereof.

  As shown in FIG. 10A, a transparent window 57 is formed on the back surface 50k of the insole member 50b so that the material stored in the storage space 56 can be seen. In the sheet material, display 70, 72, 74 such as a logo mark or a symbol is arranged on the transparent window 57 or an opaque portion other than the transparent window 57.

  With the transparent window 57, the supply state, mixed state, and cured state of the first material and the second material can be easily confirmed. For example, when the colors of the first material and the second material are different, the color seen from the transparent window 57 becomes uniform when the first material and the second material are sufficiently mixed. When the color of the mixture of the first material and the second material changes according to the cured state, the cured state of the mixture of the first material and the second material can be easily confirmed from the transparent window 57.

  As shown in FIGS. 9 and 10B, on the surfaces 50s, 50t of the insole members 50a, 50b, logo mark display 60a, 60b, symbol display 62a, 62b for distinguishing left and right, and toes Symbol display 64a, 64b indicating the side is arranged.

  As the sheet material, for example, a composite sheet having a three-layer structure having a total thickness of 55 μm in which polyamide having a thickness of 15 μm, polyethylene having a thickness of 15 μm, and polyethylene having a thickness of 25 μm are sequentially laminated is used. Fold it in half so that it is exposed, and heat-press the polyethylene together. On the inner surface (polyethylene) folded in half, opaque regions other than logo marks and symbols 60a, 60b, 62a, 62b, 64a, 64b, 70, 72, 74 and transparent window 57 are printed in advance. Then, thermocompression bonding and die cutting are performed along the outer peripheral edge 58 in a state where the polyamide is folded in two so that the polyamide is exposed to the front. Since the printing surface is arranged inside the insole member, printing is difficult to disappear.

  As shown in FIG. 9, the insole members 50a and 50b are formed in a bag shape by folding a sheet material along folding lines 52a and 52b, and the folding lines 52a and 52b are arranged along the outer peripheries of the insole 2a and 2b. That is, the fold line 52a of the insole member 50a for the left foot is arranged along the right outer periphery of the insole 2a of the shoe for the left foot, and the fold line 52b of the insole member 50b for the right foot is the left side of the insole 2b of the right foot shoe. It arrange | positions along the outer periphery of. In this way, the folding lines 52a and 52b are arranged along the left and right inner peripheries of the insole 2a and 2b, so that the fluid in the storage space near the folding lines 52a and 52b, that is, the first material and the second material, The mixture can be transformed into various angles, directions, various thicknesses, and various complex three-dimensional shapes without any hindrance. It can be freely deformed along the shape and the shape of the insole of the shoe. Therefore, the insole members 50a and 50b can accurately support the entire arch of the sole, and can realize a stable wearing feeling without a sense of incongruity. Especially on high heels, very remarkable results are obtained.

  On the other hand, unlike the insole members 50a and 50b, when the part to which the sheet material is adhered is arranged along the outer periphery of the insole of the shoe, the insole member can be freely deformed by the part to which the sheet material is adhered. Due to the constraints, it becomes difficult to form a natural shape that touches the entire arch of the sole.

  A configuration in which the protruding pieces 53a and 53b of the insole members 50a and 50b are eliminated is possible, but the first material and the second material can be easily supplied by providing the protruding pieces 53a and 53b. Further, the storage space 56 can be easily sealed.

  <Summary> As described above, if the insole is manufactured by molding the insole member on the sole of the shoe user, the shape of the insole can be optimized for each user.

  That is, when the insole is manufactured by stepping the sole into the flat surface outside the shoe and taking the foot shape in a state of floating in the space, the insole of the shoe on which the insole is placed is curved. Moreover, when the shoe is worn, the arch shape of the foot arch is different from that when the shoe is taken, so the gap between the shoes cannot be adjusted optimally. In contrast, in the insole manufactured by the manufacturing method of the present invention, the insole member is disposed on the insole of the shoe, and the three-dimensional shape of the arch of the foot when the shoe is worn is molded by the insole member. It can be formed into an optimal three-dimensional shape that securely fits the sole. That is, it is possible to manufacture an insole having a three-dimensional shape that is individually optimized for the type of shoe and the shape of the foot of the user.

  Further, the insole member can be manufactured by mixing the first material and the second material including the two-liquid mixed type resin material when necessary, and a costly die or the like is unnecessary. . Since the molded bag-shaped insole member itself is used as an insole, useless material used only for taking a foot shape is also unnecessary. Further, the insole member may be sized so that it can be disposed only on a necessary portion (arch portion), and is smaller than a general insole disposed on the entire shoe sole. Therefore, it can be provided at low cost.

  Moreover, since it can be manufactured easily in a short time when necessary, an insole can be provided at the same time as the sale of shoes at a shoe store.

  Furthermore, since the insole manufactured according to the embodiment is arranged only in the arch portion and is formed in an optimal shape, it can be used with the shoe gap adjusted optimally for all types of shoes, and sneakers Not only loafers but also women's pumps with a small shoe gap can be used with the shoe gap adjusted optimally.

  That is, when women's pumps are worn, it usually feels like sliding down to the toe side of the foot along the insole of the shoe, and it is necessary to support the weight on the toe side of the foot. Since the arch of the sole is supported through the insole, there is no sensation of sliding down to the toe side of the foot along the insole of the shoe, and the weight of the entire sole can be supported. Moreover, the insole manufactured according to the present invention can be applied to shoes having a size suitable for a user's foot.

  Therefore, the pumps for women can be used with the shoe gap adjusted optimally.

  The present invention is not limited to the above-described embodiment, and can be implemented with various modifications.

  For example, if the first material and the second material are separately stored in the insole member and mixed by an operation such as manual disintegration by hand, the insole can be manufactured without using an auxiliary member. can do. Since it is only necessary to store an elastic filler in the insole member, the first material and the second material may be other than the two-component addition reaction liquid silicone rubber.

  Alternatively, an insole member having an empty internal storage space and two types of auxiliary members separately storing the first material and the second material may be used.

  In the embodiment, the insole member having a shape that can be disposed along the arch portion of the shoe is illustrated. However, the insole member is not limited thereto, and for example, the insole member can be disposed on a part or the whole of the insole of the shoe. Any shape is acceptable. Even in such a case, the insole member is formed with a storage space disposed in the arch portion of the shoe, and the mixture of the first material and the second material is stored in the storage space. Further, a pocket may be provided in the insole, and the insole member may be stored in the pocket.

2 Insole 3 Insole sheet material 4 Insole member 12 Main body part 14 Center part 16 Projection piece 20 Auxiliary member 50a, 50b Insole member 51a, 51b Opening 52a, 52b Folding line 53a, 53b Projection piece part 54a, 54b Main unit 55 Adhesive 56 Storage space 57 Transparent window 58 Outer edge

Claims (3)

A pouch having a size and shape substantially corresponding to an arch that is part of the sole, formed to have an internal space using a flexible sheet material;
An elastic filler stored in the internal space of the pouch;
An insole characterized by comprising. A method for manufacturing a partial insole disposed in an arch space between an insole of a shoe and an arch portion of a sole of a user wearing the shoe,
A first sachet formed of a flexible sheet material and having an internal space and an opening communicating with the internal space, a first material and a second material that start curing when mixed, and a first thickener. And the process of
The first material, the second material, and the thickener are mixed and stirred to start curing to form a gel-like mixture with reduced fluidity, and the mixture is stored in the internal space. A second step of disposing the sachet with the opening sealed on a shoe sole corresponding to the arch space;
Before the curing of the mixture is completed, a user of the shoe with the pouch placed on the insole wears the shoe, presses the pouch with the sole of the user, and uses the shoe insole A third step of shaping the shape of the arch space with the sachet sandwiched between the sole of the person,
A method for producing an insole, comprising:   The first material and the second material are a main component and a curing agent of a two-component addition reaction liquid silicone rubber that cures at room temperature, and the thickener is premixed with the curing agent, The manufacturing method of the insole of Claim 2.

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