JP2001204507A - Luminescent shoe - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a luminescent shoe capable of automatically securing required electric power, only when vibration is applied to the luminescent shoe, simple in constitution and excellent in power generation efficiency. SOLUTION: This luminescent shoe comprises a piezoelectric power generator for generating power by a collision operation according to walking, a rechargeable battery connected to the piezoelectric power generator and a luminescent body which is disposed on an outside instep side surface and/or a sole of the shoe rear surface side of a shoe instep cover and emits light by power from the rechargeable battery. The piezoelectric generator is formed by a layered piezoelectric ceramic plate in which two sheets of planar piezoelectric ceramic elements are joined by directing polarization in opposite directions and is constituted so as to generate power by beating one side surface or both surfaces of the piezoelectric ceramic plate.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in shoes provided with light-emitting means for enhancing visibility at night, for example.

[0002]

2. Description of the Related Art As is well known, a luminous shoe which emits light at night or the like to enhance visibility by walking or the like is disclosed in, for example, Japanese Utility Model Laid-Open No. 5-65205 and Japanese Utility Model Laid-Open No. 6-52508. As is clear from the numbers and the like. In these shoes equipped with conventional light emitting means, a light emitting device such as a light emitting diode is arranged on the rear surface of the sole of the shoe, and a sensor switch for sensing a stepping load during walking or the like supplies electricity from a built-in battery to emit light. . In addition, various shoes have been proposed, such as shoes that emit light by a vibration sensor or the like other than the load sensor switch, and shoes in which a light emitter is attached to a portion other than the sole of the shoe.

[0003] However, in the above-mentioned conventional light-emitting shoes, in order to obtain a continuous light-emitting state during walking, the life of the battery is shortened, and the battery must be frequently replaced. The shoe is used without being replaced, and has a problem that the shoe is the same as a shoe having no light emitting means.

The present invention has been made in view of the above-mentioned circumstances, and has as its object the purpose of being able to semi-permanently automatically generate electric power when necessary without changing batteries by simply walking while wearing light-emitting shoes. It is an object of the present invention to provide a light-emitting shoe having a simple configuration and excellent power generation efficiency.

[0005]

According to a first aspect of the present invention, there is provided a piezoelectric generator for generating electric power from a light-emitting shoe by a collision operation accompanying walking or the like, and a piezoelectric generator connected to the piezoelectric generator. A rechargeable battery, and a luminous body disposed on the outer side of the shoe upper and / or the rear side of the shoe sole and emitting light by the power from the rechargeable battery. It is characterized by forming two piezoelectric ceramic elements in the form of a layered piezoelectric ceramic plate joined by reversing the polarization, and hitting one or both surfaces of this piezoelectric ceramic plate to generate power. is there.

In order to achieve the above object, according to a second aspect of the present invention, there is provided a piezoelectric generator for generating electric power from a light-emitting shoe by a collision operation accompanying walking or the like, and a rechargeable battery connected to the piezoelectric generator. A luminous body disposed on the outer side of the shoe upper and / or on the rear side of the shoe sole and emitting light by power from the rechargeable battery, wherein the piezoelectric generator has two plates. The piezoelectric ceramic element is formed on a layered piezoelectric ceramic plate bonded with the polarization reversed, the center of one side of this piezoelectric ceramic plate is bonded to the cushion material, and the other side is hit to generate power. It is characterized by the following.

In the second aspect of the present invention, the piezoelectric ceramic plates joined to the cushion material are arranged face to face, and the piezoelectric ceramic plates are beaten by reciprocating between them. It is characterized by providing a hard hit body.

Further, in order to achieve the above object, according to a third aspect of the present invention, there is provided a piezoelectric generator for generating electric power from a light-emitting shoe by a collision operation accompanying walking or the like, and a rechargeable battery connected to the piezoelectric generator. A luminous body disposed on the outer side of the shoe upper and / or on the rear side of the shoe sole and emitting light by power from the rechargeable battery, wherein the piezoelectric generator has two plates. The piezoelectric ceramic element is formed on a layered piezoelectric ceramic plate joined with the polarization reversed, and both ends of the piezoelectric ceramic plate are supported by cushioning material, and one or both surfaces of the piezoelectric ceramic plate are beaten. Power generation.

In the third aspect of the present invention, a piezoelectric ceramic plate supported by the cushion material is disposed, and one or both sides of the piezoelectric ceramic plate are reciprocated between the piezoelectric ceramic plate and the piezoelectric ceramic plate. A hard beating body for beating a ceramic plate is provided.

In the first to third aspects, it is preferable that the two piezoelectric ceramic elements are formed in the same form.

In order to achieve the above object, according to a fourth aspect of the present invention, there is provided a piezoelectric generator for generating electricity from a light-emitting shoe by a collision operation accompanying walking or the like, and a rechargeable battery connected to the piezoelectric generator. A luminous body disposed on the outer side of the shoe upper and / or the rear side of the shoe sole and emitting light by electric power from the rechargeable battery, wherein the piezoelectric generator comprises a plurality of piezoelectric ceramics. The elements are formed into a layered piezoelectric ceramic body by joining the elements in the opposite directions of polarization, and at least two or more of the piezoelectric elements are arranged so as to be able to collide with each other. It is a feature.

According to a fourth aspect of the present invention, the central portion of the piezoelectric ceramic body is supported by a cushion material.

Further, in the fourth invention, one of the piezoelectric ceramic bodies is supported by a cushion material, and the other piezoelectric ceramic body is moved or rocked to abut against the one piezoelectric ceramic body. It is characterized by generating electricity.

Further, in the fourth invention, the two piezoelectric ceramic bodies are held together via a cushion material,
It is characterized in that both piezoelectric ceramics are arranged so as to move or swing and abut each other.

Further, in the first to fourth inventions, a power is generated by attaching a protector plate to a hitting surface portion of the piezoelectric ceramic body and hitting each of the protector plates. .

Further, in particular, the protector plate according to the fourth invention is characterized in that it is formed so as to protrude from a hitting surface portion of the piezoelectric ceramic body.

Further, the protector plate according to the fourth invention is characterized in that it is formed in a hemispherical shape.

In the first to fourth inventions, the piezoelectric ceramic element is characterized in that it is formed by joining a plurality of layers.

Further, the piezoelectric ceramic element according to the first to fourth inventions is characterized in that it is formed of a zinc-zirconate-zinc-based material.

[0020]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail based on an embodiment of the invention shown in the accompanying drawings.

As shown in FIG. 1, a light-emitting shoe H according to this embodiment is an injection-molded athletic shoe in which a shoe sole 23 is integrally formed with a shell 22 by injection molding. Sole 2
The light-emitting bodies L are respectively provided on the rear surface portions 3.

As shown in FIGS. 1 and 2, the luminous body L disposed on the outer shell side surface of the shell 22 is protected by a protective cover 28. The protective cover 28 has a lower end portion. Are sewn to the upper 22 at the sewn portion 21, and the upper end is tied to the upper 22 with a shoelace 27.

In the middle of the protective cover 28,
A punched portion having a shape conforming to the shape of the convex portion of the transparent resin unit case 24 is formed, and the unit case 24 is fixed with the convex portion protruding from the punched portion. The light emitting body L is housed inside the unit case 24.

Further, as shown in FIG. 3, the luminous body L disposed on the shoe sole 23 is disposed so as to be embedded in the heel of the sole 23, and the periphery of the luminous body L is Transparent resin 26
Water-tight, impact-resistant and protected. Note that, in this embodiment, the light-emitting body L is
2 has been described by way of example in the case of being disposed on the outer side and the heel portion of the sole 23, but the present invention is not limited to this. Needless to say, they may be provided at other locations or may be provided by appropriately combining them.

In the present invention, as shown in FIG. 3, the power generating apparatus for supplying electric power to each of the luminous bodies L disposed on the outer side surface of the upper cover 22 and the heel portion of the sole 23 is a walking device. A piezoelectric generator A that generates power by a collision operation accompanying the like, a rechargeable battery B connected to the piezoelectric generator A, and a rectifier circuit S that electrically connects the rechargeable battery B and the piezoelectric generator A. It is configured.

In other words, when walking while wearing the issuing shoes H according to the present embodiment, the piezoelectric generator A vibrates or swings due to the vibration such as walking, so that the voltage generated by the piezoelectric generator A is Rectified by the rectifier circuit S, the rechargeable battery B
Is charged. Preferably, in order to enable charging regardless of the polarity of the voltage generated in the piezoelectric generator A, it is desirable to use a circuit in which a bridge is combined with a diode as the rectifier circuit S.

Next, an example of the configuration of the piezoelectric generator A will be sequentially described. The piezoelectric generator A1 shown in FIG. 4 is configured such that the piezoelectric ceramic plates 1 are arranged at both ends of a cylindrical container 8 having both ends closed, and these piezoelectric ceramic plates 1 generate power by hitting steel balls 4. The cushion plate 3 is adhered to one side surface of the container 8 using an adhesive 6, and the piezoelectric ceramics plate 1 is adhered only to the central portion of the cushion plate 3 using the adhesive 5. Similarly, the piezoelectric ceramics plate 1 is bonded to the other side surface of the container 8 so that both sides face each other. The protector plate 2 is fixed to the center of the facing surfaces of the two piezoelectric ceramic plates 1. Then, a pipe 7 is arranged between the two piezoelectric ceramic plates 1, and a rollable steel ball 4 is provided in the pipe 7.

The piezoelectric ceramic plate 1 is composed of two plate-like piezoelectric ceramic elements 1a and 1b of the same form (the same material, the same shape and the same thickness).
The junctions are made with the polarities of a and 1b reversed.
By joining the ceramic elements 1a and 1b of the same form, the two ceramic elements 1a and 1b vibrate flexibly around the joint surface (the part that does not expand or contract). In this case, if the ceramic element 1a on one side expands, the ceramic element 1b on the other side contracts, and the electrodes of the output voltage become in the same direction, and the two piezoelectric ceramic elements 1a and 1b are connected in series. Becomes

The piezoelectric ceramic elements 1a and 1b are
It is known as a conversion element for converting between mechanical energy and electrical energy, and many inorganic and organic materials exhibiting a piezoelectric effect are known. System (piezo
electric ceramics).

A piezoelectric ceramic element is an element in which a high DC voltage is applied to a polycrystalline body to cause remanent polarization to have piezoelectricity, and the basic piezoelectric constant can be changed quite freely depending on the composition. A zinc-zirconate-based piezoelectric ceramic element is practical because it has a wide selection range of composition ratios and additives.

By the way, when the flexural vibration is carried out around the joint surface, one of the piezoelectric ceramic elements 1a (or 1b) performs both the expansion and the contraction, so that the polarization is not canceled. Power generation is performed efficiently. The electric current as the generated electric energy is the lead wire 9
Take out using.

Although two piezoelectric ceramic elements 1a and 1b are laminated here, each piezoelectric ceramic element 1a and 1b is laminated.
a (1b) can each have a laminated structure.
In this laminated structure, a plurality of thin piezoelectric ceramic plates are joined (in this case, the polarity of polarization is the same) to form one piezoelectric ceramic element 1a (or 1b). In this way, by adopting a laminated structure, for example, when joined by an adhesive having elastic characteristics, due to this elastic effect,
The bending of the ceramic plate material lacking in material strength is facilitated and the bending strength can be maintained, and the thinner the ceramic plate is, the stronger the bending becomes. Further, the outer shape of the piezoelectric ceramic plate 1 is not particularly limited, but the front shape may be a circle, an ellipse, a triangle, a square, a polygon, or the like.

The cushion plate 3 is made of a synthetic resin material, a rubber material or a sponge-like soft material. The reason why such a cushion plate 3 is used and that the piezoelectric ceramic plate 1 is fixed to the center portion of the cushion plate 3 using the adhesive 5 is that the vibration of the piezoelectric ceramic plate 1 is not attenuated. When the piezoelectric ceramics plate 1 vibrates, the member supporting the piezoelectric ceramics plate 1 becomes a factor for attenuating the vibration of the piezoelectric ceramics plate 1. In order to eliminate the damping factor, the cushioning plate 3 is used to minimize the piezoelectric ceramics plate. Leave 1 free.

By using the cushion plate 3, the natural vibration of the piezoelectric ceramic plate 1 lasts for a long time, so that the power generation efficiency is improved. The cushion material is a piezoelectric ceramic plate 1
To reduce the impact applied to The protector plate 2 is made of metal, synthetic resin, or the like, and protects the piezoelectric ceramic plate 1 from hitting the steel ball 4.

When walking or the like while wearing the light-emitting shoes L equipped with the piezoelectric generator A1 having such a configuration, the steel balls 4 roll in the pipe 7 and strike the left and right piezoelectric ceramic plates 1, Apply impact energy due to collision. Then, the piezoelectric ceramic plate 1 is excited to vibrate, and repeats its expansion and contraction to generate AC electricity.

Here, as the hit body, the steel ball 4 is arranged in the pipe 7 to hit the piezoelectric ceramic plate 1, but the material and shape of the hit body are limited to steel balls. Instead of a heavy object, a heavy object such as a column or an egg may be used. In addition, not only the pipe 7, but also a form in which the hit body can move along the rail as long as the hit body can move freely. In addition, a spring material (upward or downward) is used in place of the pipe 7, one end of the spring material is fixed, and the steel ball 4 is attached to the other end. Board 1
Can be beaten.

FIG. 5 shows a charging circuit for charging the electricity generated by the piezoelectric generator A1. This charging circuit includes PZT1 and PZT2 as two piezoelectric ceramic plates 1, rectifying diodes D1 to D6, and a rechargeable battery B for storing electricity. The electricity generated by PZT1 is full-wave rectified by diodes D1 to D3, and the electricity generated by PZT2 is full-wave rectified by diodes D4 to D6. The full-wave rectified electricity is charged to the rechargeable battery B.

FIG. 6 shows an example of a piezoelectric generator A2 using one piezoelectric ceramic plate 1. This piezoelectric generator A2
Uses a cylindrical container 12 whose both ends are closed, and a cushion member 1 is provided on an upper surface and a lower surface of a central portion of the container 12.
The piezoelectric ceramic plates 1 (1a, 1b) are fitted into the recesses of the cushion member 11 and supported. Protector plates 2 are attached to both sides of the piezoelectric ceramic plate 1. Pipes 7 are arranged on both sides of both piezoelectric ceramic plates 1, and rolling steel balls 4 are provided in these pipes 7. The material of the cushion member 11 is the same as that of the cushion plate 3, and the other members are also as described above.

When walking or the like while wearing the light-emitting shoes H equipped with the piezoelectric generator A2, the steel balls 4 roll in the pipe 7 and alternately strike the piezoelectric ceramic plates 1, thereby causing the piezoelectric ceramic plates 1 to hit. 1 generates alternating current electricity when vibration is excited and expansion and contraction are repeated.

The piezoelectric generator A3 shown in FIG. 7 has a piezoelectric ceramic body 1 at both ends of a housing 18 having both ends closed.
0 (PZT1) and 10 (PZT2) are opposed to each other with their axes shifted slightly.
Electric power is generated by colliding zeros.

Then, the cushion plates 13 and 13 are bonded to both sides of the housing 18 with adhesives 16 and 16, and the adhesives 15 and 15 are used only at the central portions of the cushion plates 13 and 13. Piezoelectric ceramic body 10, 10
Glue. A protector plate 2 is fixed to the center of the facing surfaces of the two piezoelectric ceramic bodies 1. In the present embodiment, the two piezoelectric ceramic bodies 10, 10 are formed to be curved in an arc shape.

The piezoelectric ceramic body 10 (PZT)
1) and 10 (PZT2) are two circular plate-shaped piezoelectric ceramic elements 10a having the same material, similar shape, and the same thickness.
10b is joined by reversing the polarity of the polarization of each of the ceramic elements 10a and 10b. By joining the ceramic elements 10a and 10b, the two ceramic elements 10a and 10b vibrate flexibly around the joint surface (a portion that does not expand or contract). In this case, the configurations of the power generation system and the charging system, and the configuration of the piezoelectric ceramic element, the cushion plate, and the protector plate are the same as those of the piezoelectric generator A1 or A2, and a detailed description thereof will be omitted.

In this embodiment, the case where the piezoelectric ceramic bodies 10 and 10 are supported via the adhesive 15 and the cushion material 13 has been described as an example. However, one or both of the piezoelectric ceramic bodies 10 and 10 may be supported instead. 10, 10 fixed to one end of a spring (may be supported upward or downward)
The other end of the piezoelectric ceramic body 1 is attached to the housing 18 and the spring material is expanded and contracted left and right and vertically oscillated.
0 and 10 may collide.

Since the piezoelectric generator A3 is configured to generate power by colliding the piezoelectric ceramic bodies 10 with each other as described above, the configuration as a power generation device is extremely simplified, and the piezoelectric generator A3 further includes a piezoelectric generator A3. Ceramic body 1
Since 0 and 10 are curved in an arc shape, the piezoelectric ceramic bodies 10 and 10 can be disposed as close as possible in a normal state, so that the entire device can be reduced in size and the light-emitting shoes can be provided. The effect of being particularly suitable for a small product such as H is obtained.

The piezoelectric generator A4 shown in FIG. 8 has a piezoelectric ceramic body 10 (PZT1) similar to the piezoelectric generator A3.
And a piezoelectric ceramic body 10 (PZT2), and a third piezoelectric ceramic body 10 (PZT3) inside the housing 18 between the piezoelectric ceramic body 10 (PZT1) and the piezoelectric ceramic body 10 (PZT2). The piezoelectric ceramic body 10 (PZT3) is suspended from above by swinging the piezoelectric ceramic body 10 (PZT3) in the left-right direction, whereby the piezoelectric ceramic body 10 (PZT1) or the piezoelectric ceramic body 10 (PZT2) to collide with the piezoelectric ceramics 10 (PZT1), 10 (PZT2), 10 (PZT2).
3) Except that each vibration is excited and each piezoelectric ceramic body 10 repeats expansion and contraction to generate AC electricity, other configurations and operations are the same as those of the piezoelectric generator A3. Since it is configured, its detailed description is omitted here. The piezoelectric ceramic body 10
In the case of (PZT3), since the colliding portion is different from the other piezoelectric ceramic bodies 10 (PZT1) and 10 (PZT2), the protector plate 12 is connected to the piezoelectric ceramic body 10 (PZT3).
Both generators are different in that they are disposed from both end sides of ZT3) to the periphery.

Therefore, the piezoelectric generator A according to each of the above embodiments is described.
According to 3, A4, the structure is simpler than that of the piezoelectric generators A1, A2, the size can be reduced, and the manufacturing cost can be reduced. It is.

In each of the piezoelectric generators A3 and A4, a case has been described in which the piezoelectric ceramic body is curved in an arc shape and the piezoelectric ceramic body is directly collided to generate electric power. However, the present invention is not limited to this. Considering the manufacturing difficulty and cost, the piezoelectric ceramic body is formed into a flat plate shape as in the case of the piezoelectric generators A1 and A2, and is attached to the striking surface of the piezoelectric ceramic body. The protector plate to be formed is formed in a shape protruding from the hitting surface portion, for example, a hemispherical shape, a cylindrical shape, or a polygonal column shape, or one protector plate is formed in a U-shaped cross section, and the other protector plate is By forming the protector plate into a size and shape that can be inserted with a slight gap in the recess of the one protector plate, the piezoelectric generator can be further reduced in size and the cost can be reduced. Since desirable.

[0048]

As described above, according to the present invention, a piezo-electric generator for generating electricity from a light-emitting shoe by a collision action accompanying walking or the like, a rechargeable battery connected to the piezo-electric generator,
A luminous body disposed on the outer side surface of the shoe upper and / or the rear surface side of the shoe sole and emitting light by power from the rechargeable battery, and comprising a plurality of piezoelectric ceramics constituting the piezoelectric generator The elements are formed in a layered piezoelectric ceramic body, and a plurality of these are arranged so that the piezoelectric ceramic bodies collide with each other to generate power. And the piezoelectric generator used in this luminescent shoe has high power generation efficiency and is effective for small power generation. This has the effect of significantly reducing the manufacturing cost of light-emitting shoes that are excellent in performance and that require miniaturization.

In addition, according to the present invention, since the structure in which the layered piezoelectric ceramic body is supported by the cushion material is adopted, the vibration of the piezoelectric ceramic body lasts for a long time.
Power generation efficiency is improved.

Further, according to the piezoelectric power generating device used for the light emitting shoes according to the present invention, two piezoelectric ceramic elements having the same material, similar shape and the same thickness are formed by reversing the polarity of the polarization of each ceramic element. By joining, the joint surface of the two ceramic elements is formed so as to bend and vibrate at the center (a part that does not expand or contract), so that the expansion and contraction of the piezoelectric ceramic element is appropriately performed, and the effect of further improving the power generation efficiency is obtained. .

Further, when the piezoelectric ceramics are made to collide with each other and vibrate, the size of the piezoelectric power generation can be further reduced and the cost can be reduced.

Further, since the protector plate is attached to the portion of the piezoelectric ceramic body to be hit, there is an effect that the piezoelectric ceramic element is effectively protected against the impact load of the piezoelectric ceramic body. The shape of the protector plate is, for example, a shape protruding from the hitting surface portion of the piezoelectric ceramic body so that a direct collision vibration can be easily obtained even if the piezoelectric ceramic body is formed in a plate shape, for example, a semi-spherical shape. By forming it into a cylindrical or polygonal column shape, it is possible to further reduce the manufacturing cost.

Further, since each of the piezoelectric ceramic elements is joined in plural layers, there is an effect that the strength of the piezoelectric ceramic element can be maintained. Further, since a titanium zirconate zinc-based material is used for the piezoelectric ceramic element, durability can be improved, and it is particularly practical and effective for shoes with severe impact wear.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram showing a configuration of a light emitting shoe according to an embodiment of the present invention.

FIG. 2 is a cross-sectional view of a cap part of the light-emitting shoe.

FIG. 3 is a sectional view of a heel portion of the light-emitting shoe.

FIG. 4 is an explanatory diagram showing a first configuration example of a piezoelectric generator provided in the light-emitting shoe.

FIG. 5 is a circuit diagram of a rechargeable battery of the piezoelectric generator.

FIG. 6 is an explanatory diagram showing a second configuration example of the piezoelectric generator.

FIG. 7 is an explanatory diagram showing a third configuration example of the piezoelectric generator.

FIG. 8 is an explanatory diagram showing a fourth configuration example of the piezoelectric generator.

[Explanation of symbols]

 A1, A2, A3, A4 Piezoelectric generator B Rechargeable battery H Light emitting shoe L Light emitting body S Rectifier circuit 1,10 Piezoelectric ceramic plate 1a, 1b, 10a, 10b Piezoelectric ceramic element 2 Protector plate 3,11 Cushion material (cushion plate) 4 Beating body (steel ball) 22 Shell cover 23 Sole

Claims (15)

[Claims] 1. A piezoelectric generator for generating electricity by a collision operation accompanying walking or the like, a rechargeable battery connected to the piezoelectric generator,
A luminous body disposed on the outer side surface of the shoe upper and / or the rear side of the shoe sole and emitting light by electric power from the rechargeable battery, wherein the piezoelectric generator has two plate-like shapes. A light-emitting shoe, wherein a piezoelectric ceramic element is formed of a layered piezoelectric ceramic plate joined in a reverse polarization direction, and power is generated by hitting one or both surfaces of the piezoelectric ceramic plate. 2. A piezoelectric generator for generating power by a collision operation accompanying walking or the like, a rechargeable battery connected to the piezoelectric generator,
A luminous body disposed on the outer side surface of the shoe upper and / or the rear side of the shoe sole and emitting light by electric power from the rechargeable battery, wherein the piezoelectric generator has two plate-like shapes. A piezoelectric ceramic element is formed on a layered piezoelectric ceramic plate joined with the polarization reversed, and the center of one side of this piezoelectric ceramic plate is joined to a cushion material, and the other side is hit to generate power. Luminescent shoes featuring. 3. The piezoelectric ceramic plate bonded to the cushioning material is disposed facing each other, and a hard beating body is provided between the two piezoelectric ceramic plates for reciprocating between the two and hitting each piezoelectric ceramic plate. The luminescent shoe according to claim 2, characterized in that: 4. A piezoelectric generator for generating electricity by a collision operation accompanying walking or the like, a rechargeable battery connected to the piezoelectric generator,
A luminous body disposed on the outer side surface of the shoe upper and / or the rear side of the shoe sole and emitting light by electric power from the rechargeable battery, wherein the piezoelectric generator has two plate-like shapes. A piezoelectric ceramic element is formed on a layered piezoelectric ceramic plate joined with the polarization reversed, and both ends of the piezoelectric ceramic plate are supported by cushioning materials, and one side or both sides of the piezoelectric ceramic plate are beaten. Luminescent shoes characterized by generating electricity. 5. A hard beating device in which a piezoelectric ceramic plate supported by the cushioning material is disposed, and one or both sides of the piezoelectric ceramic plate are reciprocated between the piezoelectric ceramic plate and the piezoelectric ceramic plate to strike the piezoelectric ceramic plate. The luminous shoe according to claim 4, wherein a body is provided. 6. The piezoelectric ceramic element according to claim 1, wherein the two piezoelectric ceramic elements are formed in the same form.
A luminescent shoe according to any one of the above. 7. A piezoelectric generator for generating electricity by a collision operation accompanying walking or the like, a rechargeable battery connected to the piezoelectric generator,
A luminous body disposed on the outer side of the shoe upper and / or the rear side of the shoe sole and emitting light by power from the rechargeable battery, wherein the piezoelectric generator comprises a plurality of piezoelectric ceramic elements. Are formed into a layered piezoelectric ceramic body by joining the polarities in opposite directions, and at least two or more of these piezoelectric elements are arranged so as to be able to abut, and the piezoelectric ceramic bodies collide with each other to generate power. And luminous shoes. 8. The light-emitting shoe according to claim 7, wherein a center portion of the piezoelectric ceramic body is supported by a cushion material. 9. A method according to claim 1, wherein one of said piezoelectric ceramic bodies is supported by a cushion material, and said other piezoelectric ceramic body is moved or rocked to abut against said one piezoelectric ceramic body to generate power. The luminous shoe according to claim 7 or 8. 10. The piezoelectric ceramic bodies are held together via a cushion material, and the piezoelectric ceramic bodies are arranged so as to move or swing and abut against each other. Item 10. A luminescent shoe according to any one of Items 9 to 10. 11. The piezoelectric ceramic body according to claim 1, wherein a protector plate is adhered to a beating surface portion of the piezoelectric ceramic body, and power is generated by beating the protector plates. Luminous shoes. 12. The luminescent shoe according to claim 11, wherein said protector plate is formed so as to protrude from a hitting surface portion of said piezoelectric ceramic body. 13. The device according to claim 11, wherein the protector plate is formed in a hemispherical shape.
3. The luminescent shoe according to any of 2. 14. The light emitting shoe according to claim 1, wherein the piezoelectric ceramic element is formed by joining a plurality of piezoelectric ceramic elements in a layered manner. 15. The luminous shoe according to claim 1, wherein the piezoelectric ceramic element is formed of a zinc-zirconate-zinc-based material.