JP2016154722A - Solar cell carrying shoes - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide shoes mounted with easily carrying and hardly damaged solar cells.SOLUTION: Shoes have a plurality of elements 2 of solar cells, and flexible cloth textiles 1 are arranged on the surface of a shoe upper 5. The upper 5 includes a central part 5C just in front of a wearing port 50, from which a leg extends, an inner side part 5M on the inner foot side than the central part 5C, and an outer side part 5L of the outer foot side than the central part 5C. The textiles 1 are arranged at the back of the hypothenar O5 at least in the outside part 5L and in a portion of a region A in front of an outer ankle B.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a shoe equipped with a solar cell.

  Shoes in which a solar cell is arranged in the upper are known (for example, Patent Documents 1 and 2). Also, textile solar cells are known as solar cells (for example, Patent Document 3).

JP07-103Y (summary) JP3028995 B (paragraph 0010, FIG. 2) WO2005 / 41312 A1

  In the inventions described in Patent Documents 1 and 2, a solar cell module is arranged in the central portion in front of the mouth. However, tongue pieces and shoelaces are often arranged at the center, and it is difficult to mount the module on shoes for walking and running.

Further, in the vicinity of the mouth of the central part, the mouth is widened every time it is worn, and the module is likely to be repeatedly stressed, and is easily subjected to pressure when the foot is bent, and the module is easily damaged.

On the other hand, the upper toe portion of the toe portion at the center portion is also bent when the foot is bent during walking or running. Therefore, the module is easily damaged.

Moreover, in these patent documents 1, 2, the panel type solar cell is mounted and a solar cell is easy to be damaged by bending operation. In addition, when a panel type solar cell is attached to a shoe, the flexibility of the shoe is impaired and the bending operation or the like is significantly hindered.

  An object of the present invention is to provide a shoe in which a solar cell is not easily damaged. Another object of the present invention is to provide a shoe in which flexibility is not greatly impaired while a solar cell is mounted.

The present invention has a plurality of solar cell elements, and a flexible textile is disposed on the upper surface of a shoe,
The upper comprises a central part in front of the mouth from which the legs extend, an inner part on the inner side of the foot than the central part, and an outer part on the outer side of the foot than the central part,
The textile is disposed in a part of a region at least behind the small basket on the outer side and in front of the outer basket.

According to the present invention, since a flexible textile is adopted as the solar cell, the cell and the conductive wire of the solar cell are hardly damaged by the bending of the shoe.

In particular, a region in the outer side of the upper part from the rear to the front of the outer cage is less likely to be distorted during walking or running (see WO2004 / 093587 A1 in FIG. 2). Therefore, the solar cell is less likely to be damaged by disposing the solar cell in this region. In addition, the flexibility of the shoe is not significantly impaired by arranging the flexible textile in the above-described region where distortion is unlikely to occur.

In addition, the area outside the upper portion has a large spread and many smooth slopes, so that it is easy to mount solar cells.

Further, most of the region is inclined obliquely upward unlike the inside, and is not easily shadowed by the legs. Therefore, it is easy to receive sunlight and to obtain a large amount of electric power.

From this point of view, it is preferable to dispose the textile on at least a part of the surface that faces obliquely upward of the outer side.

Textile means fabric including woven fabric.

In the present invention, “the textile is disposed at least in a part of the area behind the small basket on the outer side and in front of the outer cage” means that a part of the textile is disposed in the area. For example, it means that the remaining part of the textile may be arranged in another region.

It is a top view of shoes which show one example of the present invention. It is an inner side view of the shoe. It is an outer side view of the shoe It is a cross-sectional view of the middle foot portion and the rear foot portion of the shoe. It is a perspective view of shoes which show other examples. It is an enlarged plan view which shows an example of a textile (quotation from FIG. 2 of WO2005-41312).

  Preferably, the textile is attached to the surface of the outer part.

  The textile may be attached to the surface of the outer portion of the main upper material by sewing and / or adhesion, and in this case, a load is applied to the main upper material, so that a large stress is hardly generated in the textile.

  For example, the textile includes a plurality of conductive wires for electrically connecting the plurality of elements to each other and a plurality of insulating wires woven so as to intersect the conductive wires.

Preferably, the direction in which the conductive line extends is set in a direction across the outer portion.
The “crossing direction” means that the conductive wire extends in a direction intersecting the front-rear direction (length direction) of the shoe in a plan view.

In this case, the conductive wire extending in the direction crossing the outer portion can be easily drawn out to the eyelet decoration on the upper portion of the outer portion and the sole on the lower portion, which is preferable in terms of wiring to the amplifier and the control portion.

More preferably, the lower end portion of the textile is sandwiched between the main upper material and the sole.

In this case, the lower end portion of the textile is sandwiched between the main upper material and the sole, thereby preventing the upper from being broken.

Preferably, the lower end of the textile is sandwiched between the main upper material and the sole,
A groove in which a wiring material connected to the conductive wire is disposed is formed in the sole.

In this case, the conductive wire extending in the direction crossing the outer side portion can be easily connected to the wiring member disposed in the groove of the sole at the lower end portion, and an advantage in wiring can be obtained.

More preferably, the sole is formed with a housing recess for housing constant voltage means for setting the power generated by the element to a predetermined voltage.

In this case, wiring from the wiring material wired to the sole to the constant voltage means becomes easy.

Preferably, the extending direction of the insulating wire is set in a direction crossing the outer portion.

A tightening force by a shoe race and a load during walking or running are generated in the transverse direction on the outer side of the upper. Therefore, if the insulating wire is made flexible with great elasticity, the outer portion of the upper has a flexible structure. On the other hand, if the insulating wire is made of high rigidity, the rigidity of the outer portion of the upper is increased. . In other words, the upper structure can be designed as required.

Preferably, the upper end of the textile is sandwiched between the main upper material and the eyelet decoration,
The lower end of the textile is sandwiched between the main upper material and the sole.

In this case, the insulating wire extends from the eyelet decoration to the sole and is sandwiched between these and the main upper material. Therefore, the tensile rigidity in the transverse direction of the upper is increased, and it is easy to ensure sufficient strength of the upper even if the main upper material is thinned.

Preferably, the textile includes a plurality of modules,
A part or all of the plurality of modules are arranged apart from each other;
The modules separated from each other are connected to each other by a wiring material having elasticity.

  In this case, since the modules are separated from each other, the flexibility of the upper can be maintained. Further, the wiring material having stretchability can be suppressed or prevented from breaking by expanding and contracting according to the deformation of the flexible upper.

Preferably, the sole has a groove,
A wiring material electrically connected to the element is accommodated in the groove.

  In this case, the wiring material can be accommodated in the groove of the sole, and disconnection of the wiring material can be suppressed or prevented. Further, by accommodating the wiring material in the groove of the sole, it is possible to suppress the undulation caused by the wiring material on the sole side of the sole, and to prevent the wiring material from causing discomfort when wearing shoes.

Features described and / or illustrated in connection with one such embodiment or each of the following examples may be in the same or similar form in one or more other embodiments or other examples, and / or It can be utilized in combination with or instead of the features of other embodiments or examples.

The invention will be more clearly understood from the following description of preferred embodiments with reference to the accompanying drawings, in which: However, the examples and drawings are for illustration and description only and should not be used to define the scope of the present invention. The scope of the present invention is defined only by the claims. In the accompanying drawings, the same part numbers in a plurality of drawings indicate the same or corresponding parts.

Embodiments of the present invention will be described below with reference to the drawings.
As shown in FIG. 1, the upper 5 of the shoe has a central part 5C in front of the mouth 50 from which the legs extend, an inner part 5M inside the foot from the central part 5C, and a foot part from the central part. And an outer portion 5L on the outside. The central portion 5 </ b> C includes a tongue piece 53. 2 covers the inside of the foot. The outer portion 5L in FIG. 3 covers the outside of the foot.

  A sole 6 is disposed under the upper 5. The sole 6 includes a midsole 6M and an outsole 60, for example.

  As shown in FIG. 3, one or a plurality of textiles 1 are arranged on the surface of the upper 5 as solar cells. The textile 1 is attached to the surface of the outer portion 5L by sewing, for example. The textile 1 has a plurality of solar cell elements 2 and is formed in a flexible cloth shape. The textile 1 is arranged in at least a part of a region A behind the small basket ball O5 and in front of the outer basket B in the outer side 5L. Such an area A is easy to receive sunlight from obliquely upward as shown in FIG. 4A.

  Preferably, the textile 1 of FIG. 3 is disposed in at least a part of a region in the outer portion 5L behind the small ball O5 and in front of the Lisfranc joint J. The small ball O5 or the Lisfranc joint J is a part where a deviation is likely to occur between the foot and the upper 5, that is, a part where the distortion of the foot is large, whereas the part between these is less likely to cause the distortion of the foot. . Therefore, the durability of textile 1 will be improved. Further, in this case, the durability of the textile 1 will be improved because the textile 1 is not disposed near the mouth 50 that is opened or worn by hand when wearing shoes.

Next, an example of the detailed structure of the textile 1 will be described.
In FIG. 6, the textile 1 has a plurality of spherical solar cell elements 2 arranged in a matrix. The textile 1 includes a plurality of conductive wires 20 and 21 for electrically connecting the plurality of elements 2 to each other, and a plurality of insulating wires 22 woven so as to intersect the conductive wires. Prepare

  More specifically, the textile 1 includes an element 2, a mesh member 3, and a sheet member 4. Each element 2 includes a spherical pn junction and positive and negative electrodes 14 and 15 formed at positions facing each other across the center of the element 2 connected to both poles of the pn junction. The mesh member 3 includes a plurality of conductive lines 20 and 21 arranged in parallel so as to electrically connect a plurality of elements 2 in each column, and between the rows of the elements 2, perpendicular to the conductive lines 20 and 21. The insulating tension wire 22 is arranged and is folded in a mesh shape to fix the plurality of conductive wires 20 and 21.

Reference numeral 23 denotes a connecting portion such as a solder paste.
Such a textile structure is disclosed in WO2005 / 041312A1, WO2010 / 070714A1, WO2012 / 026142A1, and the like.

  In FIG. 3, the upper end portion 11 of the textile 1 is sandwiched between a main upper material 51 and an eyelet decoration 52. On the other hand, the lower end portion 10 of the textile 1 is sandwiched between the main upper material 51 and the sole 6.

  The extending direction of the conductive lines 20 and 21 in FIG. 6 is set to a direction X across the outer portion 5L in FIG. As shown in FIG. 4, a groove 6G in which a wiring member 24 connected to the conductive wires 20 and 21 is disposed is formed in the midsole 6M. The midsole 6M in FIG. 4B is formed with a housing recess 6C that houses an amplifier as constant voltage means 7 that sets the power generated by the element 2 to a predetermined voltage.

The accommodation recess 6C may be filled with, for example, a gel GL, and the constant voltage means 7 may be embedded in the gel GL. The gel GL may be a gel-like resin having cushioning properties and insulating properties. The gel GL may be a gel having a low viscosity embedded in a gel having a high viscosity, and the constant voltage means 7 may be embedded in the gel having a low viscosity. Thus, by embedding the constant voltage means 7 in the gel GL, the constant voltage means 7 is not easily damaged even when receiving an impact during landing. It is also a measure against water and dust and electrical shorts.

The light received by the element 2 (FIG. 6) is photoelectrically converted, becomes a predetermined voltage value by the constant voltage means 7, and is fed to an output device attached to the shoe. The output device is, for example, a light emitting diode, a GPS module, a fan, or the like.
In addition to the amplifier, a wiring board or the like is disposed on the sole 6. These amplifiers and wiring boards may be accommodated in a protective case made of, for example, a thermoplastic resin. The protective case may be formed in an arch shape according to the shape of the arch.

FIG. 5 shows another embodiment.
In FIG. 5, the textile 1 includes a number of modules 1M. Some or all of the plurality of modules 1M are arranged apart from each other. The modules 1M spaced apart from each other are connected to each other by a wiring material 24 having elasticity.

The extending direction of the insulating wire 22 in FIG. 6 may be set to a direction X that crosses the outer portion 5L in FIG.

As described above, the preferred embodiments have been described with reference to the drawings. However, those skilled in the art will readily understand various changes and modifications within the obvious scope by looking at the present specification.
The sole arranged under the upper may have only a so-called outsole.
The textile 1 may be provided on both the inner side and the outer side.
The tongue piece does not need to be provided in the center part of the upper. The material of the region A in the upper may be a white background in order to improve the photoelectric exchange efficiency.
A belt may be employed as the tightening member instead of the shoe race or in addition to the shoe race.
Accordingly, such changes and modifications are to be construed as within the scope of the present invention as defined by the claims.

  The present invention can be applied to shoes for various uses such as walking in addition to running shoes.

1: Textile 1M: Module 10: Lower end 11: Upper end 14, 15: Electrode
2: Element 20, 21: Conductive wire 22: Insulating wire 23: Coupling portion 24: Wiring material 3: Mesh member 4: Sheet member
5: Upper 50: Mouth 51: Main upper material 52: Eyelet decoration 53: Tongue piece 5C: Central part 5L: Outer part 5M: Inner part 6: Sole 6C: Accommodating recess 6G: Groove 6M: Midsole 60: Out Sole 7: Low voltage means GL: Gel J: Lisfranc joint X: Direction

Claims (11)

Shoes equipped with solar cells,
A textile having a plurality of elements of the solar cell and having flexibility is disposed on the upper surface of the shoe,
The upper comprises a central part in front of the mouth from which the legs extend, an inner part on the inner side of the foot than the central part, and an outer part on the outer side of the foot than the central part,
The shoe according to claim 1, wherein the textile is disposed at least in a part of a region in the rear portion of the outer portion behind the small heel ball and in front of the outer heel. In claim 1,
A shoe, wherein the textile is attached to a surface of the outer part. In claim 1,
The textile includes a plurality of conductive wires for electrically connecting the plurality of elements to each other and a plurality of insulating wires woven so as to intersect the conductive wires. In claim 3,
A shoe in which a direction in which the conductive wire extends is set to cross the outer portion. In claim 4,
A shoe, wherein the lower end of the textile is sandwiched between a main upper material and a sole. In claim 4,
The lower end of the textile is sandwiched between the main upper material and the sole,
A shoe in which a groove in which a wiring material connected to the conductive wire is disposed is formed in the sole. In claim 5 or 6,
The shoe, wherein the sole is formed with an accommodation recess for accommodating a constant voltage means for setting the electric power generated by the element to a predetermined voltage. In claim 3,
The shoe in which the extending direction of the insulating wire is set in a direction crossing the outer portion. In claim 8,
The upper end of the textile is sandwiched between the main upper material and the eyelet decoration,
A shoe, wherein the lower end of the textile is sandwiched between a main upper material and a sole. In claim 1,
The textile includes a plurality of modules,
A part or all of the plurality of modules are arranged apart from each other;
A shoe in which the modules separated from each other are connected to each other by a wiring material having elasticity. In any one of Claims 1-4 and 7-10,
The sole has a groove;
A shoe in which a wiring material electrically connected to the element is accommodated in the groove.