JP2006000254A - Insole - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an insole effectively exhibiting deodorizing effect, improving a wearing property and manufactured at a low cost. <P>SOLUTION: This insole comprises a thin body part 10 formed into a flat plate and a swell part 20 swelling downward from the bottom 11 of the body part 10. The body part 10 and the swell part 20 are integrally molded of silicone resin mixed with ceramic powder and the top part 21 of the swell part 20 is formed to position in the adjacency between the first joints J1 and the second joints J2 of the respective toes. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a shoe insole, and more particularly to a shoe insole that has a deodorizing effect and is comfortable to wear.

  In the description of the present invention, the term “ceramic powder” means ceramic powder such as tourmaline, silica, and serpentine, and the term “silicone resin” has elasticity like silicon rubber or silicon rubber. It means silicon resin.

  As is well known, many proposals have been made to apply a ceramic powder to a shoe insole to achieve a deodorizing or deodorizing effect. For example, Japanese Patent Application Laid-Open No. 2002-51805 “Tourmaline-containing insole” proposes a shoe insole in which a polypropylene resin foam mixed with tourmaline is laminated between an insole and a surface layer. In addition, Japanese Patent Laid-Open No. 2001-70008 “Insole of shoe sole” proposes a shoe insole in which tourmaline particles and powder are contained in a cotton-like layer in order to form an air layer around the tourmaline. .

  The former laminated type insole has a high manufacturing cost of the material, resulting in an expensive insole, which is unacceptable to consumers. In addition, the insole using a cotton-like layer containing particles or powder of tourmaline is used on the toe part of the shoe to avoid the deformation of the cotton-like layer due to the movement of the foot during use. Therefore, the deodorizing or deodorizing effect by tourmaline cannot always be exhibited effectively.

On the other hand, from the viewpoint of comfort, for example, Japanese Laid-Open Patent Publication No. 2001-206 “Insole for Shiatsu of Footwear such as Shoes” has been proposed with a protrusion provided at the acupressure point of shiatsu. Yes. However, this does not necessarily improve comfort, and in some cases, the user feels even pain.
JP 2002-51805 A Japanese Unexamined Patent Publication No. 2001-70008 Japanese Patent Laid-Open No. 2001-206

  An object of the present invention is to provide a shoe insole that can effectively exhibit a deodorizing or deodorizing effect, can improve comfort, and can be manufactured at low cost.

  A shoe insole according to the present invention includes a thin main body portion formed in a flat plate shape and a bulging portion bulging downward from the bottom surface of the main body portion. The main body part and the bulging part are integrally formed of silicon resin mixed with the above-mentioned ceramic powder, and the top part of the bulging part is formed so as to be located between the first joint and the second joint of each toe. Is done.

  The particle size of the ceramic powder is 1000 mesh or less, preferably 1000 to 2000 mesh, and the mixing ratio of the ceramic powder to the silicon resin is desirably 5 to 30%. It is desirable that the part where the little finger is located is formed larger than the part where the thumb of the foot is located. Furthermore, it is preferable to provide a ventilation opening in a portion in front of the top of the bulging portion of the shoe insole.

  The stuffiness that causes malodor occurs mainly between the first joint and the second joint of each toe. For this reason, a deodorizing or deodorizing effect can be exhibited more efficiently by positioning the top of the bulging portion in the vicinity between the first joint and the second joint of each toe. In addition, the fact that the bulging part bulges downward from the bottom surface of the main body part means that when the shoe is worn, the main body part adjacent to the bulging part is moved to the bottom of the shoe by each fingertip and the lateral footbow. Will push down. For this reason, elastic resilience of the silicone resin occurs, and a cushioning effect can be exerted on the legs when walking, thereby improving the comfort and use without feeling tired. Moreover, since it can form using shaping | molding techniques, such as compression molding and injection molding, it can manufacture at low cost.

  As for the particle size of the ceramic powder, if the particle size is larger than 1000 mesh, the ceramic powder on the surface of the silicon resin not only touches the sole of the user and gives a rough feeling, but also at the time of molding. There is a high risk that the surface of the molding mold will be damaged and become unusable. For this reason, the finer the particle diameter of the ceramic powder, the better. However, a ceramic powder finer than 2000 mesh is expensive, and it is preferable to use a powder up to 2000 mesh from a commercial viewpoint. On the other hand, if the mixing ratio of the ceramic powder is less than 5%, it is difficult to obtain the desired deodorizing or deodorizing effect, and if it exceeds 30%, the elasticity of the silicon resin is impaired.

  Occurrence of stuffiness causing odor is more likely to occur on the little finger side than on the thumb side. For this reason, forming the bulging part so that the part where the little finger is located is larger than the part where the thumb of the foot is located can place a larger amount of ceramic powder on the little finger side. Thus, the deodorizing or deodorizing effect can be exhibited more efficiently.

  The inside of the shoe is in a state where the toe side portion from the position of the side foot arch is sealed. For this reason, by providing an opening for ventilation on the toe side portion from the position of the side foot arch, which is the main place where stuffiness occurs, the deodorizing or deodorizing effect by the ceramic powder can be more efficiently exhibited. .

  The thickness of the main body portion and the thickness of the bulging portion should be selected so that they can exhibit an appropriate cushioning effect during use, and do not feel a sense of incongruity or steps. The thickness of the main body portion and the bulging portion depends on how the bulging shape in the cross-sectional direction of the bulging portion is formed. As an example, when the body portion is gently projected from the main body portion, the above-described effects can be obtained by selecting the thickness of the main body portion as 1 mm and the maximum thickness at the bulging portion as about 2.5 mm.

  FIG. 1 is a view of a shoe insole according to an embodiment of the present invention as viewed from the bottom side, showing a shoe insole for a left foot, and FIG. 2 showing a longitudinal section of the shoe insole shown in FIG. Yes. The illustrated insole is generally only in the form of the toe side from the position of the lateral foot arch A, but as described above, this is the side where the swelling occurs mainly. If the deodorant or deodorant effect can be exerted on the toe side from the position of the foot arch A, the deodorant or deodorant effect can be performed almost completely, and also when not only walking but also at rest Since the weight is mostly applied to the toe side, the cushion effect is formed from the viewpoint of being able to appear on the toe side. However, it should be noted that, if necessary, it can be formed to cover the entire insole B of the shoe, such as a well-known and conventional insole.

  A shoe insole according to an embodiment of the present invention includes a thin main body portion 10 formed in a flat plate shape and a bulging portion 20 bulging downward from the bottom surface 11 of the main body portion 10. The main body portion 10 and the bulging portion 20 are integrally formed of silicon resin mixed with ceramic powder. The top portion 21 of the bulging portion 20 is formed in an arch shape so as to be positioned in the vicinity between the first joint J1 and the second joint J2 of each toe.

  The particle size of the ceramic powder mixed in the silicon resin is 1000 mesh or less, preferably 1000 to 2000 mesh, and the mixing ratio of the ceramic powder to the silicon resin is 5 to 30%. The bulging portion 20 is formed so that the portion on the side where the little finger T2 is located is larger than the portion on the side where the thumb T1 is located. A plurality of ventilation openings 30 are appropriately distributed in the front part of the top part 21 of the bulging part 20.

  The inner space S of the shoe on the toe side from the position of the side foot arch A is substantially closed. On the other hand, stuffiness caused by sweating or the like mainly occurs between the first joint J1 and the second joint J2 of each toe. For this reason, the bad space is filled in the internal space S on the toe side of the shoe. Since the top of the bulging portion located in the vicinity between the first joint and the second joint of each toe is in a state of entering into the toe dent R between the first joint J1 and the second joint J2, A large amount of ceramic powder can be disposed by the toes R, so that malodors can be positively and efficiently removed.

  The bulging portion 20 that bulges downward from the bottom surface 11 of the main body portion 10, as shown by a broken line in FIG. The portion A will push down to the insole B of the shoe. For this reason, an elastic repulsion of the silicone resin occurs, and a cushioning effect can be exerted on the legs when walking, thereby improving the comfort.

  As for the particle size of the ceramic powder, if it is larger than 1000 mesh, the ceramic powder appears as a lump on the surface of the silicon resin and not only touches the sole of the user and gives a rough feeling, At the time of molding, the inner surface of the molding mold is damaged, and an expensive molding mold cannot be used. On the other hand, although it can be said that the particle diameter of ceramic powder should be as fine as possible, ceramic powder finer than 2000 mesh becomes relatively expensive, so use a powder of up to 2000 mesh from a commercial point of view. It is preferable to do this. As far as the mixing ratio of the ceramic powder is concerned, it can be expected to have a deodorizing or deodorizing effect as long as it is mixed, but in order to obtain the desired deodorizing or deodorizing effect from various experiments, it is more than 5%. It is necessary to mix a lot. On the other hand, if more ceramic powder is mixed, a greater deodorizing or deodorizing effect can be obtained, but if it exceeds 30%, the elasticity of the silicone resin is impaired and the cushioning effect described above can be exhibited. become unable.

  The bulging portion 20 is formed so that the portion where the little finger T2 is located is larger than the portion where the thumb T1 is located. This is because the occurrence of stuffiness that causes bad odor is more likely to occur on the little finger side than on the thumb side, so that a larger amount of ceramic powder can be placed on the little finger side, thereby providing a deodorizing or deodorizing effect. It means to demonstrate more efficiently.

  About the thickness of the main-body part 10 and the thickness of the bulging part 20, while being able to exhibit an appropriate cushion effect at the time of use, it is necessary to select the thickness which does not feel discomfort or a level | step difference. When the protruding shape in the cross-sectional direction of the bulging portion 20 is gently protruding from the main body portion 10, the thickness of the main body portion 10 is selected to be 1 mm, and the maximum thickness of the bulging portion 20 is selected to be about 2.5 mm. As a result, the desired effects can be obtained.

  The shoe insole according to the present invention is provided with a ventilation opening 30 in a portion on the toe side from the position of the side foot bow A. Since the inside of the shoe is substantially closed at the position of the lateral foot arch A, the toe side space S from the position of the lateral foot arch A becomes a substantially sealed space. The deodorizing or deodorizing effect of the ceramic powder is exhibited in the space S, which is the main place where this swelling occurs, and the bad odor adhering to the shoe itself through the vent opening 30 can be more efficiently exhibited. it can.

  The shoe insole of the present invention can be formed so as to be laid on the entire shoe insole similar to a well-known and commonly used shoe insole. In addition, a guide line for cutting the insole can be provided according to the size and type of the shoe.

It is a figure which shows the shoe insole by the Example of this invention, and is the figure which looked at the thing for left feet from the bottom face side. It is a longitudinal cross-sectional view of the shoe insole shown in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Main-body part 11 Bottom face 20 The bulging part 21 The top part of the bulging part 30 Ventilation opening A Side foot arch B Shoe insole J1 The first joint of the toe J2 The second joint of the toe R The depression of the toe S The inside of the shoe Space T1 Big toe T2 Little toe

Claims (4)

  It is composed of a thin main body portion formed in a flat plate shape and a bulging portion bulging downward from the bottom surface of the main body portion, and the main body portion and the bulging portion are made of silicon resin mixed with ceramic powder. A shoe insole that is integrally formed and is formed such that the top of the bulging portion is located between the first joint and the second joint of each toe.   The insole according to claim 1, wherein a particle size of the ceramic powder is 1000 mesh or less, and a mixing ratio of the ceramic powder to the silicon resin is 5 to 30%.   The insole according to claim 1 or 2, wherein the bulging portion is formed so that a portion where a little finger is located is formed larger than a portion where a thumb of the foot is located.   The insole according to claim 1, 2, or 3, wherein a ventilation opening is provided in a main body portion in front of a top portion of the bulging portion.

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