JP4395874B2 - Healthy footwear - Google Patents

Description

  The present invention relates to a healthy footwear that promotes health.

The sole of the foot is said to be the second heart. Stimulation of the sole of the foot improves blood circulation, improves the function of the internal organs, raises basal metabolism, and has a dieting effect. A bioelectric current of 100 to 200 μA flows in the body, and when a series of electrical changes occur in the cell membrane due to weak current stimulation in nerve fibers and muscle fibers, the electrical changes generated in one place cause adjacent portions. Is stimulated one after another, and the excitement is transmitted through the fiber. And on the sole of the foot, there are reflexes corresponding to each organ of the body, and as shown in Fig. 12, there are 30 crucibles, 1. cerebrum, as reflexology therapy that stimulates and massages each vase. Left hemisphere 2. Frontal sinus 3. Cerebellum / brain stem 4. Pituitary gland 5. Trigeminal nerve 6. Nose 7. Neck 7. Neck 7. Left eye 9. Left ear 11. Right trapezius muscle (right half and right neck) Shoulder) 12. Thyroid 13. Parathyroid 14. Right lung and bronchus 15. Stomach 16. Duodenum 17. Pancreas 18. Liver 19. Gallbladder 20. Abdominal nerve sores (digestive organ) 21. Right adrenal 22. Right kidney 23. Right ureter 24. Bladder 25. Small intestine 26. Cecum (appendices) 27. Ileicovalvular valve 28. Ascending colon 29. Transverse colon 36. Right gonad (ovary / testis) 53. By doing so, the function of each organ corresponding to the pot can be activated.
Methods for stimulating the soles of the feet include methods of applying pressure (such as finger pressure), methods of applying heat (such as warmth), and methods of applying electrical stimulation (magnetic, low-frequency current, weak current) It is most effective to pass a weak pulsed current through the cell tissue. (Magnety uses a small electromotive force generated in a magnetic field. In addition, low-frequency treatment milliampere current flows almost subcutaneously.) And by letting a weak current (microcurrent) flow from the outside It has been found that the production of ATP (adenosine triphosphate), an energy necessary for cell activity, is promoted in the cell.
Accordingly, the present inventor has applied for Japanese Patent Application Laid-Open No. 2005-287920 as a shoe for applying electrical stimulation to the sole of the foot. However, as the composition of the wearing equipment, the part where the foot is put on with the wearing equipment such as slippers and sandals is usually limited to a few mm, and a thick piezoelectric element is actually provided in the wearing equipment. 7 is very difficult, and it is very difficult to provide each configuration of FIG.

In addition, as a configuration proposed in Japanese Laid-Open Patent Publication No. 53-91387, for example, a configuration is proposed in which compressive stress is applied to the entire piezoelectric element having a thickness, and the piezoelectric element is caused to generate electricity by a compressive strain. When the structure is provided in an actual insole or footwear, there are the following problems.
1) In order to obtain a sufficient electromotive current from a piezoelectric element due to compression strain, the piezoelectric element must be provided with a certain degree of thickness. However, within the limited thickness of the shoe, the piezoelectric element provided therein Therefore, a sufficient electromotive current cannot be obtained with a piezoelectric element of that thickness.
2) A large impact is applied to the heel part due to the body load, but a thick piezoelectric element has almost no elasticity, so if a large load is applied to the piezoelectric element due to the impact, the piezoelectric element will break. . (For example, a person with a weight of 50 kg has a load on the heel part of about 2 kg per square centimeter, and several times more load is applied when walking.)
3) Since the piezoelectric element is distorted only slightly by pressure (impact) in the compression direction, it cannot absorb the impact on the sole of the foot, and the impact is applied to the sole of the foot, so it actually hurts when walking. There is no help for it, and that part always feels strange and uncomfortable.

JP-A-2005-287920 53-91387

  The present invention has been made in view of the above-described problems. A sufficient electromotive current can be obtained from the piezoelectric body even with a limited thickness of the shoe, and the piezoelectric body can be obtained even when a large impact is applied to the piezoelectric body. An object is to provide a healthy footwear that does not break and that is comfortable to wear without having a foreign body feeling even when the footwear is provided with a piezoelectric body.

In order to solve the above-mentioned problems, the present invention is configured to generate electricity by deformation of a piezoelectric body, and a method for generating electricity by applying pressure to the piezoelectric body using the piezoelectric effect is shown in FIG. In FIG. 11 (a), if a force (compression stress) compressing in the direction of the arrow (↓) is applied to the surface of the piezoelectric body, the piezoelectric body is distorted in the direction of contraction as shown in the figure. An electric current i is generated. Next, when the compressing force is removed, the piezoelectric body returns to its original shape, and an electromotive force i in the opposite direction is generated at that time. In FIG. 11B, when a force (shear stress) that bends in the direction of the arrow (↓ & ↑) is applied to the surface of the piezoelectric body, the piezoelectric body is distorted in the bending direction as shown in FIG. Power up. Next, when the bending force is removed, the piezoelectric body returns to its original shape, and an electromotive force i in the opposite direction is generated at that time. In this case, since the displacement amount distorted by the bending force is much larger than the displacement amount distorted by the compressing force, the electromotive current generated by the bending force is much larger.
Therefore, the present invention is configured to generate electricity by the bending force (shear stress) described above, and therefore uses the elastic and flexible properties of metals, plastics, and rubbers. A substrate is made of metal, plastic, or rubber that is appropriately bent and elastic, and a piezoelectric body is provided on the substrate in a flat and thin shape, so that even if a large pressure is applied to the substrate, the piezoelectric body is in the pressure direction. Can be bent and deformed integrally with the substrate, and when the pressure is removed, due to the elasticity of the substrate, the piezoelectric body returns to its original shape, so that it can be generated by any pressure applied on the substrate.
And even a piezoelectric body that does not have elasticity can be bent without cracking to some extent because it is made thin and thin and thin, and it can be bent without cracking to a certain extent. It is possible to carry out by generating electricity by bending. By providing the substrate in the shoe, it is possible to continuously generate electricity by walking with the foot placed on the shoe, and the skin tissue that contacts the weak current generated by the piezoelectric body from the conductive part. It is configured to energize inside.

  In addition, by forming the piezoelectric body itself with a suitably flexible piezoelectric film body, even if a separate substrate is not provided, the piezoelectric film itself is deformed in that direction when pressure is applied on the piezoelectric film. Since the piezoelectric film body returns to its original shape due to the elasticity of the piezoelectric film body and the underlayment of the shoe, it can be similarly activated, and the piezoelectric film body is installed in the shoe and the foot is placed on the shoe By walking, the electromotive force can be continuously generated, and the weak current generated by the piezoelectric film body is energized from the conductive portion to the skin tissue contacting the surface.

  In the health wear device of the present invention, the piezoelectric body is provided in a flat and thin shape on a substrate that is appropriately bent and elastic, so that the piezoelectric body provided on the substrate is bent by the pressure applied from any direction. Electricity can be generated by performing deformation that follows deformation, and the amount of displacement due to bending deformation is larger than the amount of displacement due to compression deformation. The electromotive force can be applied to the sole of the foot.

  In addition, by forming the piezoelectric body itself with a flexible and elastic piezoelectric film body, an electromotive force is generated by the deformation of the piezoelectric film body in the bending direction and the tensile direction, regardless of the pressure applied to the piezoelectric film body from any direction. Therefore, the electromotive current that is similarly generated can be increased, and the electromotive current that is efficiently generated can be applied to the sole of the foot.

  In the configuration of the present invention, the surface of each conductive portion can be provided in contact with each other on the electrode surface of the piezoelectric body on the upper surface side and the conductive substrate surface on the lower surface side. Since it can be electrically connected and implemented, there is no need for wiring or the like, and it is very easy to manufacture and can be implemented at a low cost.

  In addition, since the piezoelectric body and the piezoelectric film body constituting the present invention can be configured to be very thin, it can be provided without being bulky even with a limited thickness of the wearing equipment, and against the pressure and impact applied by the body load. In addition, the structure of the present invention can provide a comfortable wearing device without feeling of foreign objects, because it absorbs the impact and functions as a cushion by being appropriately bent without cracking.

The configuration of the present invention will be described in detail with reference to the drawings. FIG. 1 shows a configuration in which the present invention is implemented in an insole 1A of a shoe 1. The underlay 1a and underlay 1c of the insole 1A are formed of a foamed urethane resin, a foamable synthetic rubber, or the like, which is an appropriate elastic synthetic resin material. As shown in FIG. A conductive portion 6: 6A for forming the conductive rubber in a horizontally long shape is provided, and a plurality of convex portions 6a, 6a... 6a are formed on the surface of the conductive portion 6: 6A as shown in the figure. Next, as shown in FIG. 7, the piezoelectric body 4 is provided in a flat and thin shape on the surface of the substrate 3 made of an alloy of 42 ALLOY, and an electrode 5 is provided on the upper surface of the piezoelectric body 4 so as to be integrated. Is stacked on the flat surface of the flange portion of the conductive portion 6: 6A, and the insulating material 2 made of an annular paper material is stacked thereon. The insulating material 2 serves to insulate the conductive portion 6: 6B from the substrate 3 and the conductive portion 6: 6A, and conducts the conductive portion 6: 6B and the electrode 5 through the opening 2a. A conductive portion 6: 6B for forming a conductive rubber in a circular shape is formed on the insulating material 2, and a plurality of convex portions 6a, 6a... 6a are formed on the surface as shown in the figure. Then, openings 1b, 1b,... 1b are formed at positions facing the protrusions 6a, 6a... 6a on the overlay 1a, and as shown in FIGS. 6a... 6a are fitted into the openings 1b, 1b.

  Here, in the configuration shown in FIG. 1 (a), the principle of actually walking with the foot placed and energizing the sole of the foot will be described with reference to FIG. 8. In FIG. 8 (a), the configuration is as described above. When the foot is placed on the insole 1A, a load due to the weight of the body is applied on the insole 1A, and the protruding protrusions 6a, 6a,. Abut. Here, the load applied on the insole 1A is the largest in the central portion of the heel portion, and the underlay 1c has an appropriate elasticity. Therefore, when walking in this state, each time the foot is lowered, FIG. The fluctuation shown in FIG. 8 (c) occurs, and the substrate 3 is deformed to bend inward as shown in the figure by the pressure from above. Then, the piezoelectric body 4 provided in a flat thin shape on the surface of the substrate 3 follows the deformation of the deformation of the substrate 3 and is similarly bent and bent inward. At that time, the piezoelectric body 4 has a shape as shown in FIG. In addition, an electromotive current i flowing in one direction is generated. The electromotive force i is applied to the conductive portion 6: 6A in contact with the electrode 5 and the conductive portion 6: 6B in contact with the substrate 3, and is formed on the surfaces of the conductive portion 6: 6A and the conductive portion 6: 6B. The energized portions 6a, 6a,... 6a are energized into the skin tissue on the soles of the feet in contact therewith. Each time the foot is lifted and lowered, the change shown in FIG. 8 (c) to FIG. 8 (b) occurs, and an electromotive current i opposite to the electromotive current i is generated. It is energized into the skin tissue on the sole of the foot that touches it. Therefore, with the configuration of the present invention, the weak current i can be energized into the skin tissue on the sole of the foot each time the user walks with no power source. The substrate 3 constituting the present invention and the piezoelectric body 4 provided in a flat and thin shape on the surface thereof are appropriately elastic and can be formed in a very flat and thin shape so that they are not bulky and are resistant to pressure and impact from above. Since it bends in proportion to the magnitude of its force, it can serve as a cushion that absorbs and softens the impact from above.

  Here, since the piezoelectric body 4 generates electricity even with a slight strain in the bending direction, even if the underlay 1c is slightly elastic, it can be distorted to generate electricity. Even if the underlay 1c is not elastic at all, the conductive portion 6: 6A made of conductive rubber is slightly elastic, so that even the strain due to the elasticity can generate electricity and can be implemented. In the configuration of the present embodiment, the insulating material 2 is stacked on the surface of the conductive portion 6: 6A, and the substrate 3, the piezoelectric body 4 and the electrode 5 are integrated on the substrate 3 so that the substrate 3 faces upward. The electrode 5 and the conductive portion 6: 6A may be in contact with each other, and the substrate 3 and the conductive portion 6: 6B may be in contact with each other. Further, convex portions 6a, 6a,... 6a formed on the surfaces of the conductive portions 6: 6A and the conductive portions 6: 6B may be provided at positions opposed to the respective vases, for example, a typical vase on the sole of the foot. Has a spring, and stimulating it can help with kidney disease, swelling, coldness, high blood pressure, insomnia, and so on.

As shown in FIGS. 7 (a) and 7 (b), when the substrate 3 constituting the present invention is made of metal, it can be implemented with 42ALLOY made of brass, aluminum, copper, alloy having an appropriate thickness and elasticity, etc. The substrate 3 may be formed by depositing aluminum on the surface of a thin plastic material, or by forming a film of conductive carbon or the like. Further, the entire substrate 3 may be formed of a conductive rubber or a conductive plastic material. The thickness of the substrate 3 may be any thickness that is appropriately bent and has elasticity, and when formed by a metal plate, as an example, depending on the material of the metal, as an example, it is 2 to 1 mm or less to 0. It is further better if it is 5 to 0.3 mm or less and 0.2 mm or less. As the piezoelectric (piezo) ceramic 4a, the piezoelectric body 4 is made by sintering barium titanate (BaTiO ₃ ), lead titanate, lead niobate, lithium niobate, etc. in addition to lead zirconate titanate (PZT). In this embodiment, the thickness can be set to 0.2 to 0.06 mm. In addition, the piezoelectric film 4b can be formed of a film-like polyvinylidene fluoride (PVDF) or the like. By applying pressure to any substance, electric polarization occurs in the substance and an electromotive current is generated.

  In FIG. 2, the substrate 3 configured in the previous embodiment is not provided, and only the piezoelectric film 4b is formed as the piezoelectric body 4 as shown in FIG. 7C. For example, a piezoelectric (piezo) film 4b made of polyvinylidene fluoride (PVDF) manufactured by MSI (Measurement Specialties. Inc.), USA, is appropriately bent and elastic, so that it is as in the previous example. Even if the substrate 3 is not provided, the piezoelectric film 4b is bent and deformed by pressure to generate an electromotive current. Then, when the pressure is removed, the elasticity returns to the original shape and an electromotive force in the opposite direction is generated. The piezoelectric (piezo) film 4b generates an electromotive current even by a tensile force, and can generate an electromotive voltage 10 times or more that of the piezoelectric (piezo) ceramic 4a. Therefore, if the present invention is constituted by the piezoelectric (piezo) film 4b, only a small area is required, and the thickness is 28 μm, 52 μm, and 110 μm, which are very thin and not bulky. The electrode 5 can be configured by coating the piezoelectric material 4 with a metal material. Examples of the coating method include a sputtering method using a nickel copper alloy, a silver silk screen printing method, and an aluminum vapor deposition method. The electrode 5 provided on the surface of the piezoelectric film 4b may be provided only on the upper surface, but may be provided on both the upper and lower surfaces as shown in FIG. 7C in order to improve conductivity. Further, the area of the electrode 5 provided on the surface of the piezoelectric film 4b may be provided over the entire surface, but as shown in FIG. 2C, the area may be slightly reduced. In that configuration, since there is a slight gap between the electrode 5 and the conductive portion 6A, insulation is facilitated. When the insole 1A is configured as shown in FIG. 2 (a) and the foot is put on it, the piezoelectric film 4b provided on the appropriately elastic underlay 1c as shown in FIG. 8 (d) The base plate 1c is bent following the deformation of the underlay 1c by the pressure of the load, and an electromotive current is generated as in the previous embodiment. The piezoelectric film 4b never breaks, and as shown in FIG. 8 (e), the piezoelectric film 4b is bent by the pressure from above, and at the same time, a force in the pulling direction is generated and stretches in the lateral direction. Electromotive force can also be generated by elongation strain. Therefore, in the configuration of the embodiment of the present invention, an electromotive current can be generated and implemented with both bending and elongation strains.

  In order to make the piezoelectric film 4b in a moisture-proof state, as shown in FIG. 7D, the entire piezoelectric film 4b is encapsulated with a resin material 9, and electrode terminals 5a and 5a are provided on the upper and lower electrodes 5 provided on the piezoelectric film 4b. The present invention may be implemented by connecting and projecting the electrode portions 5a and 5a to the conductive portions 6A and 6B, respectively. In this configuration, the elasticity of the resin material 9 is further added, and the resin material 9 can easily return to the original state, and can efficiently generate electricity. Moreover, it may be configured by covering with an insulating material (inorganic material) 7 (not shown).

  3, 4 and 5 show a second embodiment of the present invention, in which an opening 1b of an appropriate size is formed in an overlay 1a constituting an insole 1A, and a piezoelectric body is formed from the opening 1b. 4, the electrode surface of the electrode 5 provided in 4 and the conductive surface of the conductive portion 6 are exposed. When the foot is placed in this configuration, a weak current generated from the electrode surface of the electrode 5 contacting the sole of the foot and the conductive surface of the conductive portion 6 can be applied to the skin tissue. In the configuration of this embodiment, the insulating material 2 shown in FIG. 1 is stacked on the surface of the conductive portion 6, and the substrate 3, the piezoelectric body 4, and the electrode 5 are integrated thereon, and the substrate 3 is placed on the upper side. Alternatively, the electrode 5 and the conductive portion 6 may be in contact with each other, and the substrate surface of the substrate 3 and the conductive surface of the conductive portion 6 may be exposed from the opening 1b. FIG. 5 shows an opening 1b provided on the overlay 1a with an appropriate number of openings, and a weak current generated in the same manner from the electrode surface of each electrode 5 and the conductive surface of the conductive portion 6 into the skin tissue. It can be energized.

  FIG. 6 shows the present invention applied to footwear 1B such as slippers and sandals. In each configuration shown in the previous embodiment, by providing a hook portion 1f for hooking a foot, it is possible to walk while wearing the foot, and as shown in FIG. 10, the foot is similarly lowered. An electromotive current is generated when the foot is lowered and raised, and a weak current can continuously flow in the skin tissue on the sole of the foot by walking. The present invention can also be applied to a shoe as the footwear 1. For example, when the underlay 1 c is formed of a material having almost no elasticity in order to prevent abrasion, the configuration shown in FIGS. 9A and 9B is used as an embodiment. FIG. 9A shows a case where a space 1d is formed at a portion on which the piezoelectric body 4 of the underlay 1c is placed. When a load is applied with a foot placed and the substrate 3 is bent, the space 1d is formed. Since there is a space for the substrate 3 to be bent, it can be implemented by generating an electromotive current in the same manner. In FIG. 9B, an elastic portion 1e is provided at the same portion of the underlay 1c. When a load is applied on the foot and the substrate 3 is bent, the elastic portion 1e is appropriately dented, so that an electromotive current is generated similarly. It can be implemented. In addition, in each structure of the previous Example shown in FIGS. 1-5, the underlay 1c may be implemented with the structure shown in FIGS. 9 (a) and 9 (b). Is possible. Even if the underlay 1c is not elastic at all, the conductive portion 6: 6A made of conductive rubber is slightly elastic, so that the substrate 3 can be appropriately bent to similarly generate electricity and can be implemented. The conductive part 6 has only to be electrically conductive and has an appropriate elasticity, and can be formed and formed of a conductive plastic or a plastic material obtained by vapor-depositing aluminum in addition to the conductive rubber. Further, the position where the piezoelectric body 4 is provided may be provided on the arch or toe side in addition to the hook portion shown in the embodiment.

  The effectiveness of the weak current generated by the present invention will be described. A bioelectric current of 100 to 200 μA flows in the body, and the biocurrent is disturbed by the cell tissue, which disturbs the ion arrangement of the cell tissue. If it did not flow smoothly, the natural healing power of humans declined, causing disease. Therefore, it has been reported in the research results of the University of Pittsburgh that a weak current close to the bioelectric current flows from outside the body, and the natural healing power is increased, and there is weak current therapy (microcurrent therapy) as a treatment method. When individual cells or tissues are damaged by current therapy, a weak (= damaged) current is artificially passed from outside the body to generate ATP (adenosine triphosphate) enzyme that supplies the energy necessary for the repair. It has also been proved that protein synthesis is promoted to increase natural healing power and accelerate healing (recovery). According to the research result of the University of Pittsburgh, there is a report that a weak current increases ATP synthesis in cells by 50%, increases protein synthesis by 70%, and increases cell-to-cell transport by 40%. As a weak current treatment device, a weak current generator has been developed and commercialized, and the weak current treatment is originally used by athletes and professional athletes for treatment of bruises and ligament damage. It is known that Beckham player took it into the fracture treatment and healed it in a short period of time. Therefore, the healthy footwear of the present invention can normalize the organs corresponding to the reflexes on the soles of the feet, improve the function of the gastrointestinal tract and have a diet effect.

(A) Perspective view of one embodiment of the present invention (b) Vertical sectional view of one embodiment of the present invention (c) Exploded perspective view constituting one embodiment of the present invention (A) Perspective view of one embodiment of the present invention (b) Vertical sectional view of one embodiment of the present invention (c) Exploded perspective view constituting one embodiment of the present invention (A) Perspective view of one embodiment of the present invention (b) Exploded perspective view constituting one embodiment of the present invention (A) Perspective view of one embodiment of the present invention (b) Exploded perspective view constituting one embodiment of the present invention 1 is a perspective view of an embodiment of the present invention. (A) Perspective perspective view of one part of one embodiment of the present invention (b) Vertical sectional view of one embodiment of the present invention (c) Perspective perspective view of one part of one embodiment of the present invention (A) Side view constituting one part of one embodiment of the present invention (b) Front view constituting one part of one embodiment of the present invention (c) Side view constituting one part of one embodiment of the present invention Fig. (D) Front view constituting part of one embodiment of the present invention (A) Longitudinal sectional view of one embodiment of the present invention (b) (c) (d) (e) Longitudinal sectional view of a part of one embodiment of the present invention (A) (b) A longitudinal sectional view of a part of one embodiment of the present invention Partial side view showing the principle of the present invention (A) (b) Side view showing the principle of the present invention Front view showing the distribution of pots on the soles of the feet

Explanation of symbols

1: Footwear 1A: Insole 1B (of the footwear) Footwear 1a (of the footwear) 1a: Overlay 1b: Opening 1c: Underlay 1d: Space 1e: Elastic part 1f: Hook 2: Insulating material 2a : Opening 3: Substrate 3a: Intervening substrate 4: Piezoelectric body 4a: Piezoelectric (piezo) ceramic 4b: Piezoelectric (piezo) film 5: Electrode 5a: Electrode terminal 6: Conductive part 6A: Conductive part 6B: (Different from conductive part 6A) Electrode conductive part 6a: convex part 7: insulating material (inorganic material)
8: Skin 9: Resin material

Claims (6)

In the insole or footwear on which the foot is placed, the substrate (3) having appropriate flexibility and conductivity is placed on the surface of the footwear (3) on the surface of the footwear on the surface of the substrate (3). A piezoelectric body (4) having a thickness that appropriately bends following the deformation of the substrate (3), an electrode (5) is provided on the upper surface of the piezoelectric body (4), and the piezoelectric body (4) is further provided on the shoe. A conductive portion (6) is provided at a position where the foot for energizing the electromotive force in the foot is placed on the sole of the foot, and the piezoelectric body (4) every time the foot is placed on the footwear. A weak current generated by bending distortion generated in the piezoelectric body (4) following the deformation of the bending of the substrate (3) by the pressure of the load applied on the electrode (5) and the substrate (3 ). from the plane of the conductive portion which is electrically connected (6) to), or the substrate (3) and the electrode (5) electrically connected to the conductive portion (6 Surface from forming a closed circuit in the back of the abutting leg tissue, health wear member which is adapted to weak current to electromotive energized soles adding the stimulus in the piezoelectric body (4). In the insole or footwear on which the foot is placed, the substrate (3) having appropriate flexibility and conductivity is placed on the surface of the footwear (3) on the surface of the footwear on the surface of the substrate (3). A piezoelectric body (4) having a thickness that appropriately bends following the deformation of the substrate (3), an electrode (5) is provided on the upper surface of the piezoelectric body (4), and the piezoelectric body (4) is further provided on the shoe. A first conductive portion (6: 6A) and a second conductive portion (6: 6B) are disposed at positions that are appropriately separated from each other where the feet are placed to energize the back of the foot. The pressure of the load applied on the piezoelectric body (4) every time the foot is put on the footwear and stepping on, the bending distortion generated in the piezoelectric body (4) following the deformation of the bending of the substrate (3). the weak current to electromotive, first conductive portion which is electrically connected to the substrate (3) (6: 6A) and electrically to the electrode (5) Continued and second conductive portions: in terms of (6 6B) to form a closed circuit on the back of the tissue in contact with the foot, and passing a weak current to electromotive piezoelectric element (4) on the back of the foot that Healthy footwear that adds stimulation. In an insole or footwear for placing a foot, a piezoelectric film (4: 4b) that is appropriately bent and stretched on an elastic member that receives a load by placing the foot of the footwear, and the piezoelectric film (4: 4b) An electrode (5) is provided on the upper surface, and a conductive portion (6) is disposed at a position appropriately separated from a portion where a foot for energizing the back of the foot with electricity generated by the piezoelectric film (4: 4b) is placed on the shoe. ) And a weak pressure that is generated by bending or stretching distortion generated in the piezoelectric film (4: 4b) with the pressure of the load applied to the piezoelectric film (4: 4b) each time the foot is put on the footwear and stepped on Forming a closed circuit in the tissue of the sole of the foot that abuts from the surface of the conductive portion (6) that is electrically connected to the electrode (5) and the piezoelectric film (4: 4b) and energized , A weak current generated by a piezoelectric film (4: 4b) is applied to the sole of the foot Health wear tool was to add the stimulus. In an insole or footwear on which a foot is placed, a piezoelectric film (4: 4b) that is appropriately bent and stretched is provided on an elastic member on which the foot of the footwear is placed and receives a load, and the piezoelectric film ( 4: 4b) The first conductive portion (6: 6A) and the second conductive portion (6: 6B) are arranged at positions appropriately separated from each other where the feet are placed to energize the back of the foot. ), And a weak current generated by bending strain generated in the piezoelectric film (4: 4b) with the pressure of the load applied to the piezoelectric film (4: 4b) every time the foot is put on the footwear and stepped on The structure of the sole of the foot that comes into contact with the piezoelectric film (4: 4b) from the surfaces of the first conductive part (6: 6A) and the second conductive part (6: 6B) that is electrically connected to the piezoelectric film (4: 4b) A weak current generated in a piezoelectric film (4: 4b) by forming a closed circuit inside By energizing the soles of the feet health wear tool was to add the stimulus. Convex portions (6a, 6a,..., 6a that contact the soles of the conductive portions (6) or the first conductive portions (6: 6A) and the second conductive portions (6: 6B). ) Is disposed appropriately. 5. A healthy footwear according to any one of claims 1 to 4. 6. The structure according to claim 1, wherein the piezoelectric body (4) is a piezoelectric film (4: 4 b), and electrodes (5) are provided on the upper and lower surfaces of the piezoelectric film (4: 4 b). Health footwear listed.

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