JP2017124094A - Insole for shoe - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an insole for a shoe exerting deodorizing effects to the whole shoe and capable of appropriately adjusting a size of the shoe.SOLUTION: An insole 1 includes: a surface layer 2 coming into contact with a foot sole; and a bottom surface layer 3 fitted to the back side of the surface layer 2 by thermal bonding, an adhesive, or the like, where a plurality of protrusions 4 are protrudingly provided between a part other than a part of the surface layer 2 bonded to the bottom surface layer 3, and the bottom surface layer 3. The protrusions 4 are filled with an absorbent material including a water absorptive polymer. The part of the surface layer 2 directly bonded to the bottom surface layer 3 by the thermal bonding, the adhesive, or the like comprises: a peripheral part 6 surrounding the whole circumference; a plurality of bend parts 8 formed along a toe-shape with respect to a toe part 7; and a plurality of linear parts 9 disposed in parallel to one another at equal intervals in the width direction.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a shoe insole that is used by being installed in a shoe.

  It has been widely practiced to improve the comfort and heat retention of the user by attaching an insole to the shoe. Further, Patent Document 1 discloses that moisture absorption material, which is mainly composed of silicon dioxide such as silica gel, is disposed on the upper surface of the bottom of the shoe, with a moisture absorbent material that is pulverized into powder or relatively small particles, and powder activated carbon. It is disclosed to improve the effect.

  Moreover, the insole sold independently is prepared in a plurality of sizes, for example, about three types of large, medium and small for adult men, and the user uses one corresponding to his shoe size.

JP 2012-152494 A

  However, even if powdered silicon dioxide or activated carbon is used as in the insole of Patent Document 1, there is a problem that moisture in shoes cannot be sufficiently absorbed. Especially in the rainy season, the inside of the shoe may become damp and cause odors without absorbing moisture.

  Furthermore, when the hygroscopic material is powdery or granular, there is also a problem that the hygroscopic material is biased toward one side of the insole during long-time use. In this case, the moisture absorption effect is partially or weakened rather than the entire shoe.

  Also, regarding the size of the insole, if the insole of the size of your shoes is not available, you can not use an appropriate insole, so the insole is too large for the size of your shoes Or may be too small, which causes a slippage with respect to the insole shoes and makes them uncomfortable.

  SUMMARY OF THE INVENTION An object of the present invention is to provide a shoe insole that has a hygroscopic effect on the entire shoe and that can adjust the size of the shoe appropriately.

  In order to achieve the above object, an insole for a shoe according to the present invention has a surface layer and a bottom layer bonded to a part of the surface layer. The convex part between the part other than the part bonded to the bottom layer of the layer and the bottom layer is filled with a hygroscopic material containing a water-absorbing polymer.

  According to the insole for shoes according to the present invention, the water-absorbing polymer is disposed between the surface portion and the bottom portion, and at the same time the water-absorbing polymer is held by the convex portion, the mesh body, and the sponge body, It can be prevented from gathering to one side of the insole. Further, by cutting the toe portion along the curved portion, it is possible to adjust to an appropriate shoe size.

1 is a plan view of a shoe insole of Example 1. FIG. It is a perspective view. It is an expanded sectional view along the longitudinal direction. It is explanatory drawing of a use state. 6 is a perspective view of an insole for shoes of Example 2. FIG. It is a disassembled perspective view.

  The present invention will be described in detail based on the embodiments shown in the drawings.

  FIG. 1 is a plan view of a shoe insole 1 of Example 1, FIG. 2 is a perspective view, and FIG. 3 is an enlarged cross-sectional view along the longitudinal direction. The insole 1 is a flat body having a substantially contour shape of the left and right soles of a human, and the size is larger than the average shoe size, for example, a length corresponding to 28 cm for men. ing. The insole 1 shown in FIGS. 1 and 2 is an insole for the right foot, but a symmetrical insole for the left foot and an insole for the right foot are sold as a set.

  The insole 1 includes a surface layer 2 that comes into contact with the sole, and a bottom layer 3 that is partially attached to the back side of the surface layer 2 by heat fusion, an adhesive, or the like. A plurality of convex portions 4 are provided between the portion other than the portion bonded to the bottom layer 3 and the bottom layer 3. And these convex-shaped parts 4 are filled with the moisture absorbing material 5 mentioned later.

  The surface layer 2 is made of a raised fabric, a nonwoven fabric, a synthetic resin having low rebound resilience, and the like, and all are made of a material that has air permeability and does not pass through a powdery substance. Similarly to the surface layer 2, the bottom surface layer 3 is made of a raised fabric, a nonwoven fabric, a synthetic resin having low resilience, and the like, and is made of a material that does not pass through a powdery substance. It is preferable to apply a non-slip process such as applying an adhesive or providing unevenness on the back surface of the bottom layer 3 so as not to slide with respect to the sole of the shoe.

  The portion of the surface layer 2 that is directly attached to the bottom layer 3 by heat fusion, adhesive, or the like has a toe shape with respect to the peripheral portion 6 that surrounds the entire circumference and the toe portion 7 as shown in FIGS. It is comprised from the some curved part 8 which follows, and the several linear part 9 arrange | positioned in parallel with the width direction at fixed intervals over the full length other than the toe part 7. FIG.

  The portion surrounded by the peripheral portion 6, the curved portion 8, and the straight portion 9, which is a portion other than the portion bonded to the bottom surface layer 3 of the surface layer 2, is a convex portion 4 swelled upward, and the hygroscopic material 5 Filled.

  The hygroscopic material 5 is a fibrous material such as pulp fiber cotton in which a water-absorbing polymer is uniformly dispersed. The water-absorbing polymer is a hydrophilic polymer having a cross-linked structure, has a water absorbing power of 50 times or more of its own weight, and does not separate even when pressure is applied. And the water | moisture content etc. which generate | occur | produce from a leg | foot are absorbed by the water absorbing polymer disperse | distributed uniformly in a fibrous material.

  When manufacturing the insole 1, first, the hygroscopic material 5 is filled from above on the back surface of the surface layer 2 on which the concave portions corresponding to the convex portions 4 are formed. Thereafter, the upper surface is covered with a flat bottom surface layer 3, and the surface layer 2 and the bottom surface layer 3 are attached to the portions corresponding to the peripheral portion 6, the curved portion 8, and the straight portion 9 by heat fusion or adhesive. . After completion, the water-absorbing polymer is stored in a sealed bag so as not to absorb moisture in the air.

  Moreover, in the state which apply | coated the adhesive which can be re-adhered with respect to the back surface of the bottom layer 3 of the shoe insole 1 for right feet and left feet, and the surfaces where the back surfaces of the bottom layer 3 faced each other temporarily It may be stored. One shoe insole 1 can be stored as a pair by attaching the back surfaces to each other.

  When the user uses, the insole 1 is taken out from the hermetically sealed bag, and depending on the size of the shoe, a part of the toe portion 7 is moved along the curved portion 8 by using an arbitrary curved portion 8 as a guide portion with scissors or the like. Disconnect. Since the curved portion 8 is wide, even if it is cut with scissors, the adjacent convex portion 4 is cut and the hygroscopic material 5 does not spill out.

  If the size of the user's foot is large, for example, 28 cm for men, cutting of the toe portion 7 is not necessary. However, if the size of the foot is small, for example 26 cm, the toe tip from the curved portion 8 at an appropriate location. What is necessary is just to cut | disconnect a part of part 7 and to adjust a size.

  In FIGS. 1 and 2, the curved portion 8 is provided on the toe side, but a plurality of curved portions 8 may be provided along the heel shape with respect to the heel side. The insole 1 provided with the bending portion 8 on the heel side is adjusted in size by cutting a part of the heel portion from the bending portion 8 at an appropriate location.

  As shown in FIG. 4, the user attaches the insole 1 to the insole S1 of the shoe S and wears the shoe S. The shoe S includes a shoe sole S2 having an insole S1 on the front surface side, and an upper S3 connected so as to surround a peripheral portion of the shoe sole S2. The insole S1 is a part on which the user's sole is placed via the insole 1.

  Upper S3 is a part that covers the user's foot from above, its toe portion is formed in a bag shape that conforms to the shape of the upper of the foot, and the rear is a cylindrical body that covers the heel, The cylindrical body forms a mouth S4 for inserting a foot.

  If the shoe S to which the insole 1 is attached is kept worn, the inside of the shoe S may be stuffy due to sweating from the foot. Especially in the summer and the rainy season, the inside of the shoe S is easily stuffy, and the moisture stays inside the shoe S.

  However, the moisture inside the shoe S reaches the moisture absorbent 5 via the surface layer 2 and the bottom layer 3 having air permeability, and is absorbed by the water absorbent polymer in the fibrous material. Once water is absorbed by the water-absorbing polymer, moisture does not escape from the water-absorbing polymer, so that the shoe S can always be kept free from moisture.

  The water-absorbing polymer that has absorbed water becomes a gel, and if the convex portion 4 changes to a gel-like feel like a jelly as time passes, the insole 1 is removed from the shoe S and discarded. When using the insole 1 again, the new insole 1 is inserted into the insole S1.

  Further, by using the convex portion 4 filled with the hygroscopic material 5 made of a fibrous material in which a water-absorbing polymer is dispersed, cushioning is obtained from the insole 1 and comfort is improved. Furthermore, since the convex portions 4 are arranged at a predetermined interval, the sole is easily hooked on the convex portions 4 and the foot is difficult to slip on the insole 1.

  Further, by dividing the surface layer 2 by the plurality of convex portions 4, it is possible to prevent the hygroscopic material 5 from shifting to one side, and particularly to prevent the hygroscopic material 5 from being displaced in the longitudinal direction. Never gather.

  FIG. 5 is a perspective view of a shoe insole 1 ′ according to the second embodiment, and FIG. 6 is an exploded perspective view. In addition, the same part as Example 1 is attached | subjected the same code | symbol.

  As the hygroscopic material 5 disposed between the surface layer 2 and the bottom layer 3 of the insole 1 ′, a powdery water absorbent polymer is used instead of the fibrous material in which the water absorbent polymer of Example 1 is uniformly dispersed. A mesh body 10 that is evenly distributed in a mesh window partitioned in a state is employed.

  The mesh body 10 has a planar shape and each side of the mesh window is about several mm, and is formed from a synthetic resin or the like. Further, a foamed resin body such as a flat sponge may be employed in addition to the mesh body 10, and the water-absorbing polymer may be disposed evenly in the voids in the foamed resin body.

  The insole 1 ′ is a state in which the mesh body 10 is compressed, and the peripheral portion 6 and the curved portion 8 of the surface layer 2 and the bottom layer 3 are bonded to each other by heat fusion, an adhesive, or the like. In the center of the insole 1 ′, one convex portion 4 incorporating the mesh body 10 that is the hygroscopic material 5 is formed.

  Since the height of the convex portion 4 and the height of the mesh body 10 substantially coincide with each other, the water-absorbing polymer disposed in the partitioned mesh window does not move to another mesh window. For this reason, it can prevent that a water absorbing polymer concentrates on one place in the convex-shaped part 4. FIG.

  When the user uses the insole 1 ′ taken out from the hermetic bag, the size is adjusted by cutting the curved portion 8 of the toe portion 7 as in the insole 1 of the first embodiment.

  After the size adjustment, the insole 1 ′ is attached to the insole S <b> 1 of the shoe S, and the water-absorbing polymer in the hygroscopic material 5 absorbs water emitted from the user's feet when used. And if it expand | swells in each mesh window and fully absorbs moisture, the insole 1 'is removed and discarded.

  Note that the insole 1 ′ of the second embodiment is not provided with the straight portion 9 unlike the insole 1 of the first embodiment, but the straight portion 9 may be provided. By providing these straight portions 9, it is possible to reliably prevent the water-absorbing polymer in the mesh body 10 from moving in the toe direction, and the foot slips on the insole 1 ′ due to the unevenness by the straight portions 9. Difficult structure.

DESCRIPTION OF SYMBOLS 1 Insole 2 Surface layer 3 Bottom layer 4 Convex part 5 Hygroscopic material 6 Peripheral part 7 Toe part 8 Curved part 9 Straight part 10 Mesh body S Shoes

Claims (7)

In the insole that has a surface layer and a bottom layer bonded to a part of the surface layer, and is attached to the insole of a shoe,
An insole for shoes, wherein a hygroscopic material containing a water-absorbing polymer is filled in a convex portion between a portion other than the portion bonded to the bottom layer of the surface layer and the bottom layer.   A part of the surface layer bonded to the bottom layer includes an entire peripheral edge portion and a plurality of curved portions along a toe shape with respect to the toe portion or along a heel shape with respect to the heel portion. The insole for shoes according to claim 1.   A portion of the surface layer attached to the bottom layer includes a plurality of straight portions parallel to the width direction, and the straight portions are arranged at regular intervals over the entire length other than the toe portion or the heel portion. The insole for shoes according to claim 1 or 2 characterized by things.   The insole for shoes according to any one of claims 1 to 3, wherein a fibrous material in which a water-absorbing polymer is dispersed is used as the hygroscopic material.   As the hygroscopic material, a planar mesh body or foamed resin body in which the water-absorbing polymer is dispersed is used, and the planar mesh body or foamed resin body is disposed between the surface layer and the bottom layer, and the mesh The insole for shoes according to claim 2 or 3, wherein a part of the surface layer and the bottom layer are bonded in a state where the body or the foamed resin body is compressed.   6. The shoe for a shoe according to claim 5, wherein the height of the convex portion between the portion other than a part of the surface layer and the bottom layer substantially coincides with the height of the mesh body or the foamed resin body. Insole.   The back surface of the bottom layer for the right foot and the left foot is coated with a re-adhesive adhesive, and the back surface of the bottom layer for the right foot and the left foot is faced to each other and temporarily bonded. The insole for shoes according to any one of claims 1 to 6.

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