JP2004161025A - Rotary light emitting device and wheel using this device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a rotary light emitting device and a wheel using this device, capable of emitting light just by rotating regardless of the amount of wind by rotation. <P>SOLUTION: This rotational light emitting device 2 comprises a housing 4 forming an attachment area 43 in an inner part, a rotating shaft 5 provided at the housing 4 so as to be rotated freely and so that one end may be protruded to the outside of the housing 4, and the other large part of the shaft may be positioned in the attachment area 43, a magnet 6 fitted onto and fixed at a part in an inside of the attachment area 43 of the rotating shaft 5, a coil unit 7 positioned in the attachment area 43, and attached at the housing 4 so as to surround the magnet 6, a light emitting means 8 electrically connected with the coil unit 7, and a weight unit 9 adding weight to the rotating shaft 5 provided at the one end of the rotating shaft 5 so that the rotating shaft 5 may not rotate with the housing 4. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a rotating light-emitting device and a wheel using the same, and more particularly, to a rotating light-emitting device attached to a wheel or a roller of, for example, an automobile, a wheelchair, a roller skate, and emitting light with its rotation, and using the same. About the wheels that are.
[0002]
[Prior art]
FIG. 1 is an exploded perspective view showing a rotary light emitting device mounted on a wheel cover 10 of a conventional automobile. The rotating light emitting device mainly includes a fan 11, a permanent magnet 12, a coil unit 13, and a plurality of light emitting means 14. More specifically, the fan 11 is rotatably supported by a rotating shaft 101 formed at a substantially central position of the wheel cover 10. The permanent magnet 12 is provided inside the fan 11 so as to be able to rotate synchronously with the fan 11. The coil unit 13 is attached to the wheel cover 10 so as to surround the permanent magnet 12. The plurality of light emitting means 14 are provided at a predetermined distance on the outer periphery of the coil unit 13 and are electrically connected to the coil unit 13, and the light emitting portion has a tip formed on the wheel cover 10. It is exposed outside the wheel cover 10 through the plurality of through holes 102 formed.
[0003]
Thereby, when the wheels of the automobile are rotated, all the components in the rotary light emitting device are synchronously rotated, but the wind generated by the rotation of the wheels passes through the entrance 103 formed in the wheel cover 10. Therefore, the fan 11 in the rotating light emitting device is driven to rotate together with the magnet 12 in a direction opposite to the rotation of the wheel, and the electromagnetic induction between the coil unit 13 and the magnet 12 causes An electromotive force can be induced in the coil unit 13 to light the light emitting means 14.
Then, not only can the wheels or the entire vehicle be decorated, but also the safety of the running vehicle can be improved.
[0004]
[Problems to be solved by the invention]
However, the presence or absence of light emission of the rotary light emitting device is determined by the magnitude of the driving force of the wind to the fan due to the rotation of the wheels, so that when the car runs slowly, the wind becomes weaker and the fan can be rotated. There is a disadvantage that the speed range in which light emission cannot be performed during traveling is extremely large because the speed may disappear.
In view of the above, it is an object of the present invention to provide a rotating light emitting device that can emit light as long as it rotates, regardless of the magnitude of wind due to rotation, and a wheel using the same.
[0005]
[Means for Solving the Problems]
In order to achieve the above object, the inventor has provided a rotating light emitting device that is attached to a rotatable rotating member and emits light with the rotation of the rotating member, and a housing having an attachment space formed therein. Is substantially rod-shaped, and is rotatably provided in the housing so that it penetrates substantially the center position of the housing, one end of which protrudes out of the housing, and most of the other is located in the mounting space. A rotating shaft, a magnet externally fitted to and fixed to a portion of the rotating shaft in the mounting space, and mounted in the housing so as to be in the mounting space and to surround the magnet. A coil unit, light-emitting means electrically connected to the coil unit and at least a light-emitting portion of which is exposed outside the housing, and wherein the rotating shaft is shared with the housing. So it can not be rotated, to provide a rotary light emitting device characterized by comprising a governor weight unit to add a weight to the rotary shaft be provided on the one end of the rotary shaft.
[0006]
When the rotating light emitting device according to this configuration is attached to a rotatable rotating member such as a wheel or a roller of an automobile, a wheelchair, a skate, or the like, the housing, the coil unit, and the light emitting unit in the rotating light emitting device are adapted to rotate the rotating member. Accordingly, the rotation shaft receives the weight of the weight unit, so that the inertia force increases and the rotation shaft does not rotate with the housing. Further, since the magnet is fixedly fitted onto the rotating shaft, the magnet stops at the original position together with the rotating shaft during rotation of the rotating member. That is, when the rotating member is rotated, the coil unit in the rotary light emitting device rotates around the non-rotatable magnet with the rotation of the rotating member, and causes an electromagnetic induction action across the magnetic field lines of the magnet. Thus, an electromotive force can be induced in the coil unit to turn on the light emitting unit. Thus, the rotating light emitting device of the present invention can emit light as long as it rotates, regardless of the magnitude of the wind due to the rotation.
[0007]
The housings each have a disk shape with an open center, and when combined with each other, are composed of two halves forming the mounting space, and the coil unit is provided around the magnet. A coil member and a power output member comprising two ring-shaped frames provided so as to sandwich the coil member, and electrically connected to one of both ends of the coil of the coil member, The light emitting means has two terminals, and one of the two terminals is electrically connected to one of the two frames, and the other terminal is electrically connected to another frame. Is preferred. It is preferable to use a weight unit in which a high-density metal material is embedded in a main body made of a plastic material.
[0008]
In addition, based on the rotating light-emitting device, the inventor further, in a wheel to which a rotating light-emitting device that emits light with its rotation is attached, the rotating light-emitting device is attached to the wheel, and, A housing in which a mounting space is formed, a substantially rod-like shape, which penetrates a substantially central position of the housing, and one end of which protrudes out of the housing, and most of the other portions are located in the mounting space. A rotating shaft rotatably provided in the housing, a magnet externally fitted and fixed to a portion of the rotating shaft in the mounting space, and a magnet in the mounting space, and A coil unit attached to the housing so as to surround the coil unit, the coil unit being electrically connected to the coil unit, and at least a light emitting portion of the coil unit being outside the housing and the wheel. An exposed light emitting means, and a weight unit that is provided at the one end of the rotating shaft and adds weight to the rotating shaft so that the rotating shaft cannot rotate with the housing and the wheel. Providing wheels to do.
[0009]
When the wheel according to this configuration is rotated, there is no range in which light emission cannot be performed as in the related art, and the light emitting means can be always turned on during rotation. Therefore, the safety of the running vehicle can be ensured.
[0010]
Preferably, the rotating light emitting device is mounted such that the rotating shaft is coaxial with the shaft of the wheel.
[0011]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, preferred embodiments of a rotary light emitting device of the present invention and a wheel using the same will be described in detail. In the following description, components having substantially the same function and configuration will be denoted by the same reference numerals, regardless of their size, and repeated description will be made only when necessary.
[0012]
The rotating light emitting device 2 of the present invention is attached to a rotatable rotating member, and emits light with the rotation of the rotating member. FIG. 2 is a perspective view of an embodiment in which it is used for a vehicle wheel and a wheel cover 3 is used as the rotating member. As shown, the wheel cover 3 to which the rotary light emitting device 2 of the present invention is attached has a disk shape, and has a convex surface 31 protruding outward and a concave surface 32 concaved inward. At a substantially central position of the concave surface 32, an annular wall 321 projecting upright from the concave surface 32 is formed. A circular mounting space 322 is formed by the annular wall 321. A plurality of through holes 323 are opened in the circular mounting space 322. In the present embodiment, there are four through-holes 323, and the four through-holes form a rhombus and are separated from each other at predetermined intervals.
[0013]
Then, as shown in FIG. 3 and FIG. 4, the rotary light emitting device 2 of the present invention includes a housing 4, a rotating shaft 5, a magnet 6, a coil unit 7, four light emitting means 8, Unit 9. More specifically, the housing 4 has a disk shape with an open center, and when combined with each other, is composed of two halves 41 and 42 forming a mounting space 43. The size after the mounting is slightly smaller than the size of the circular mounting space 322 of the wheel cover 3, so that the wheel cover 3 can be fitted and stored in the mounting space 322. Bearings 44 and 45 are provided around the openings 411 and 421 of the two halves 41 and 42, respectively. The rotating shaft 5 has a substantially rod shape, penetrates through the openings 411 and 421 of the two halves 41 and 42 of the housing 4, and has one end 51 protruding outside the housing 4, and the other major portion 52. Is rotatably provided in the housing 4 by being supported by the pair of bearings 44 and 45 so as to be positioned in the mounting space 43. The magnet 6 has a disk shape with an open center, and is externally fitted and fixed to a portion of the rotating shaft 5 in the mounting space 43. In the present embodiment, a permanent magnet is used as the magnet 6.
[0014]
The coil unit 7 is attached to the housing 4 so as to be inside the attachment space 43 and to surround the magnet 6. More specifically, the coil unit 7 includes a coil member 71 and a power output member 72, as shown in FIG. The coil member 71 has a ring-shaped mounting base 711 provided around the magnet 6, and a coil 712 wound around the mounting base 711. The power output member 72 includes two ring-shaped frames 721 and 722 provided so as to sandwich the coil member 71. The two ring-shaped frames 721 and 722 are each electrically connected to one of both ends of the coil 712 of the coil member 71, and are separated from each other at a predetermined distance along a ring-shaped outer edge. Two lugs 723, 724 are formed.
[0015]
Each of the four light emitting means 8 has two terminals 81 and 82, and one of the two terminals 81 is electrically connected to the lug 723 of the frame 721 in the two frames 721 and 722. The other terminal 82 is electrically connected to the lug 724 on the other frame 722. That is, the four light emitting means 8 are provided on the outer periphery of the coil unit 7 at predetermined intervals, as shown in FIG. As shown in FIG. 4, the four light emitting means 8 have at least respective light emitting ends that are exposed outside the housing 4 and the wheel cover 3 through openings formed in the half 41. I have.
[0016]
The weight unit 9 is formed by embedding a high-density metal material 92 in a main body 91 made of a plastic material, and is provided at the one end 51 of the rotating shaft 5 via a bolt. To add weight.
[0017]
As shown in FIG. 2, the rotary light emitting device 2 is configured such that the four light emitting means 8 are mounted in the circular mounting space 322 in conformity with four through holes 323 formed in the wheel cover 3. When the wheel cover 3 is rotated, the housing 4, the coil unit 7, and the plurality of light emitting means 8 of the rotary light emitting device 2 are synchronously rotated with the rotation of the wheel cover 3 because the wheel cover 3 is rotated. However, since the rotating shaft 5 receives the weight of the metal material 92 in the weight unit 9, the inertial force increases, and the rotating shaft 5 does not rotate with the housing 4. Further, the magnet 6 is fixed to the rotating shaft 5 so that the magnet 6 stays at the original position together with the rotating shaft 5 during the rotation of the wheel cover 3. That is, when the wheel cover 3 is rotated, the coil unit 7 in the rotary light-emitting device 2 rotates around the non-rotatable magnet 6 with the rotation of the wheel cover 3, and crosses the magnetic field lines of the magnet 6. As a result, an electromotive force is induced in the coil unit 7 to turn on the plurality of light emitting units 8.
[0018]
Thus, the rotary light emitting device 2 of the present invention can emit light as long as it rotates, regardless of the magnitude of the wind due to the rotation. Further, when the wheel using the wheel cover 3 to which the rotary light emitting device 2 of the present invention is attached is rotated, the light emitting means 8 is always turned on during rotation without the range where light emission is impossible as in the prior art. Therefore, not only the wheels or the entire vehicle can be decorated, but also the safety of the running vehicle can be ensured.
[0019]
In the above-described embodiment, the rotary light-emitting device 2 is attached to the wheel cover 3, but is not limited thereto. As shown in FIG. 6, the rotary shaft 5 is coaxial with the shaft of the wheel 20. May be directly attached to the wheel 20.
[0020]
FIG. 7 shows another embodiment of the rotary light emitting device of the present invention. This embodiment is different from the above-described embodiment in that a plurality of locking portions 422 are formed on the outer surface of the half 42 of the two halves 41 and 42 of the housing 4, and the annular shape of the wheel cover 3 is formed. A locking means 324 for locking the plurality of locking portions 422 is formed on the peripheral edge of the wall 321. Thereby, the connection between the rotating light emitting device 2 and the wheel cover 3 can be further strengthened.
[0021]
The embodiments described above are intended to clarify the technical contents of the present invention, and the present invention is not limited to such specific examples and is not interpreted in a narrow sense. Various modifications can be made within the spirit and scope of the claims.
[0022]
【The invention's effect】
The rotating light-emitting device of the present invention can emit light as long as it rotates, regardless of the magnitude of the wind due to rotation. Since there is no such range where light emission is not possible and the light emitting means can be always turned on during rotation, not only can the wheels or the entire car be decorated, but also the safety of the running car can be completely ensured. Can be.
[Brief description of the drawings]
FIG. 1 is an exploded perspective view of a rotating light emitting device mounted on a wheel cover of a conventional automobile.
FIG. 2 is a perspective view showing a case where the rotary light emitting device according to the preferred embodiment of the present invention is mounted on a wheel cover of an automobile.
FIG. 3 is an exploded perspective view of the rotary light emitting device according to the embodiment.
FIG. 4 is a sectional view of the rotary light emitting device according to the embodiment.
FIG. 5 is an exploded perspective view of the coil unit and the light emitting unit in the embodiment.
FIG. 6 is a plan view when the rotary light emitting device according to the embodiment is mounted on a wheel of an automobile.
FIG. 7 is a perspective view when a rotating light emitting device according to another embodiment of the present invention is attached to a wheel cover of an automobile.
[Explanation of symbols]
2 rotating light emitting device 20 wheel 3 wheel cover 31 convex surface 32 concave surface 321 annular wall 322 circular mounting space 323 through hole 324 locking means 4 housing 41 half 411 opening 42 half 421 opening 422 locking portion 43 mounting space 44 bearing 45 bearing 5 Rotating shaft 51 One end 52 Part different from one end 6 Magnet 7 Coil unit 71 Coil member 711 Mount 712 Coil 72 Power supply member 721 Frame 722 Frame 723 Lug 724 Lug 8 Light emitting means 81 Terminal 82 Terminal 9 Weight unit 91 Main body 92 Metal material

Claims (5)

A rotating light-emitting device attached to a rotatable rotating member and emitting light with the rotation of the rotating member,
A housing in which a mounting space is formed,
It is substantially rod-shaped, and is rotatably provided in the housing so that it penetrates substantially the center position of the housing, one end of which protrudes out of the housing, and most of the other is located in the mounting space. Axis of rotation
A magnet externally fitted and fixed to a portion of the rotating shaft in the mounting space,
A coil unit mounted in the housing so as to be in the mounting space and surround the magnet;
Light emitting means electrically connected to the coil unit, and at least a light emitting portion thereof is exposed outside the housing,
A rotating light emitting device, comprising: a weight unit provided at the one end of the rotating shaft to add weight to the rotating shaft so that the rotating shaft cannot rotate with the housing. Each of the housings has a disk shape with an open center, and when combined with each other, includes two halves that form the mounting space,
The coil unit includes:
A coil member provided around the magnet,
A power output member comprising two ring-shaped frames provided so as to sandwich the coil member and electrically connected to one of both ends of the coil of the coil member,
The light emitting means has two terminals, and
The rotary light emitting device according to claim 1, wherein one of the two terminals is electrically connected to one of the two frames, and the other terminal is electrically connected to another frame. . The rotating light emitting device according to claim 1, wherein the weight unit is formed by embedding a high-density metal material in a main body made of a plastic material. On the wheel on which the rotating light emitting device that emits light with its rotation is attached,
The rotating light emitting device,
A housing attached to the wheel, and having an attachment space formed therein;
It is substantially rod-shaped, and is rotatably provided in the housing so that it penetrates substantially the center position of the housing, one end of which protrudes out of the housing, and most of the other is located in the mounting space. Axis of rotation
A magnet externally fitted and fixed to a portion of the rotating shaft in the mounting space,
A coil unit mounted in the housing so as to be in the mounting space and surround the magnet;
Light emitting means electrically connected to the coil unit, and at least a light emitting portion thereof is exposed outside the housing and the wheels,
A wheel, comprising a weight unit provided at the one end of the rotating shaft so as to add weight to the rotating shaft so that the rotating shaft cannot rotate with the housing and the wheel. The wheel according to claim 4, wherein the rotating light emitting device is mounted such that the rotating shaft is coaxial with a shaft of the wheel.

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