JP3862297B2 - Bicycle rear safety device - Google Patents

Description

[0001]
[Industrial application fields]
The present invention relates to a bicycle rear safety device having both a reflection function and a self-luminous function.
[0002]
[Prior art]
Bicycles are required to be equipped with reflectors to prevent accidents at night.
[0003]
As a general reflector, as shown in FIG. 1, the outer peripheral edge 5 of the reflector 4 is welded to the opening edge 3 of the case 2 by ultrasonic waves, heat, or the like, thereby sealing the inside of the case 2. Such an integrated reflector 1 is known. At the time of mounting, mounting can be performed by fixing the mounting member 6 provided on the back side of the case 2 to a frame or the like with the reflecting plate 4 facing rearward.
[0004]
Thereby, since the headlight etc. of the vehicle approaching from the back is reflected by the reflecting plate 4, it is easy to recognize the existence of the bicycle, and therefore accident prevention and the like can be achieved.
[0005]
However, such a reflector 1 functions only when there is light radiated from the outside, such as a headlight of a vehicle. For example, when the vehicle or the like approaches with no light at night, On the other hand, there is a very high risk that it will be difficult to recognize the existence of the bicycle, and it may be difficult to recognize the presence of the bicycle as well.
[0006]
Therefore, a safety device has been proposed that can improve safety by incorporating an identification lamp that emits light without receiving light emitted from the outside.
[0007]
That is, as shown in FIG. 2, the identification lamp 11 is configured such that light from the LED 9 is emitted by the reflection mirror 8 provided inside the case 7 on the reflector 1 including the case 2 and the reflection plate 4. Is provided.
[0008]
Since the identification lamp 11 is lit by obtaining power from the separately attached battery case side via the cord 10, the function of the reflector 4 and the above-described vehicle in the no-light state or the like. It can be combined with the recognition function, and the safety is extremely high.
[0009]
[Problems to be solved by the invention]
However, in the reflector 1 described above, the amount of light reflected by the reflecting plate 4 is determined according to the JIS standard, and when oil or dust adheres to the back side of the reflecting plate 4, the amount of reflected light decreases. For this reason, it is also required in the JIS standard that the case 2 and the reflecting plate 4 are fixed in a sealed state.
[0010]
For this reason, it is impossible to form a hole or the like for attaching an accessory part or the like to the case 2, so that there is a problem that restrictions are increased in terms of appearance, structure, and design.
[0011]
Moreover, since the size of the reflecting plate 4 is required to some extent due to the restriction of the amount of light reflected by the reflecting plate 4 and the exclusion of the reflecting plate 4 is violated, when the identification lamp 11 is incorporated in the reflector 1, Inevitably, the dimensions of the safety device itself increase. Such an increase in the size of the safety device itself is not preferable because it tends to be damaged at the time of falling, and tends to become an obstacle when being taken in and out of a bicycle parking lot, except when attached to a rear fender.
[0012]
Furthermore, in order to turn on the identification lamp 11, power is obtained from the separately attached battery case side. Therefore, when the battery runs out, it is necessary to replace the battery. However, there are many cases where the battery is not replaced for reasons such as troublesomeness, and it is expected that the original function of the identification lamp 11 cannot be performed.
[0013]
Further, in order to obtain power from the battery case side, it is necessary to route the cord 10 to the tire guard 12 or the like, so that not only is the attachment difficult, but there is also a problem that the restriction on the attachment location becomes large.
[0014]
The present invention has been made in response to such a situation, and can greatly reduce design restrictions and installation restrictions, and can be downsized without impairing safety. An object is to provide a bicycle rear safety device.
[0015]
[Means for Solving the Problems]
Means for solving such problems are as follows.
[0016]
[Means for Solving the Problems]
According to a first aspect of the present invention, the lens portion is formed by inserting a lens portion provided in the middle of the flange portion into a small hole formed in the middle of the reflector pair from the case side attached to the back side of the flange portion. The portion and the reflector plate are arranged coaxially, and in this inserted state, the joining portion of the reflector plate and the flange portion is closely fixed so as to keep the back side of the reflector plate in a sealed state, A light emitter is disposed inside the case so as to face the lens unit , a magnetic circuit is provided in the case, and a magnetic body that periodically approaches the magnetic circuit is attached to the spoke side. it is characterized in that so as to emit the light emitter by the power induced in the magnetic circuit due to the periodic approach of the magnetic material.
[0017]
[Action]
In the rear safety device for a bicycle according to the present invention, in a state where the lens portion provided in the middle of the flange portion is inserted into the small hole formed in the middle of the reflector plate portion, the junction portion between the reflector plate portion and the flange portion. Since the back side of the reflector plate is kept in a sealed state, it is no longer necessary to keep the inside of the case in a sealed state as in the past when mounting the flange part and the case for storing the light emitter. In terms of appearance, structure, and design on the case side, design constraints are greatly relaxed.
[0018]
In addition, since the light emitter is caused to emit light as the magnetic material attached on the spoke side approaches periodically, there is no need to route a cord for supplying power to the light emitter as in the past, and the attachment is easy. The restrictions are greatly relaxed.
[0019]
In addition, since the power required to make the illuminant emit light by the periodic approach of the magnetic body as the bicycle runs, it is possible to emit light without having to replace the battery when the battery runs out as in the past. Since the light emission operation of the body can be continued, the self-light emission function by the light emitter and the reflection function by the reflector can be maintained semipermanently, and the safety is higher than that of a reflector having only a conventional reflection function. Enhanced.
[0020]
Furthermore, by arranging the lens portion provided in the middle of the flange portion in the small hole formed in the middle of the reflector plate, the reflector plate and the lens portion are arranged coaxially, and the light emitter Since the emission points of the light from the reflector and the reflected light from the reflector plate are made the same, the necessary minimum reflection and light emission area can be obtained in the reflector plate and the lens part without impairing the distinguishability of the light of both. Therefore, the external dimension of the reflector plate can be theoretically minimized, and the apparatus can be miniaturized.
[0021]
【Example】
The details of the embodiments of the present invention will be described below with reference to the drawings.
3 to 6 show one embodiment of the bicycle rear safety device of the present invention. As shown in the figure, the bicycle rear safety device includes a reflector unit 100 and a device main body 200.
[0022]
A small hole 112 is formed in the center of the circular reflector 111 of the reflector 110 of the reflector unit 100. A lens portion 122 provided at the center of the flange 121 of the lens body 120 is press-fitted into the small hole 112.
[0023]
A joint portion between the outer peripheral end 113 of the reflector plate 111 and the inner peripheral rib 114 projecting from the lower surface side of the small hole 112, and the outer peripheral end 123 of the flange 121 of the lens body 120 and the base 124 of the lens portion 122. A and B are each fixed by ultrasonic waves, heat, or the like. Thereby, the internal space C formed by the reflecting plate body 111 of the reflecting plate 110 and the flange 121 of the lens body 120 is maintained in a sealed state.
[0024]
A boss portion 125 is provided on the rear surface side of the flange 121 of the lens body 120, and the reflector unit 100 is fixed to the apparatus main body 200 by fastening with the boss portion 211 provided inside the case 210 of the apparatus main body 200. It has come to be.
[0025]
When fixing the flange 121 and the case 210, not only the fastening of the boss portion 125 and the boss portion 211 as in this example, but a screw hole 210b is formed on the side surface of the case 210 as indicated by a virtual line. It is also possible to fasten by inserting the screw 210a.
[0026]
A holding piece 212 and a receiving seat 213 are provided inside the case 210, and one end 221 of a PC (printed wiring) board 220 is fixed between the holding piece 212 and the receiving seat 213. . The other end portion 222 of the PC board 220 is fixed in a state where it is inserted through an insertion hole 214 formed in the case 210, and the other end portion 222 is pulled out into the cap 230.
[0027]
The lead terminal 241 of the LED 240 is soldered to the PC board 220. Here, the mounting position of the LED 240 with respect to the PC plate 220 is coaxial with the central axis of the lens portion 122 of the lens body 120, thereby increasing the light collection efficiency from the LED 240 by the lens portion 122.
[0028]
Engagement protrusions 218 are provided around the cap attachment portion 218 of the case 210, and the engagement protrusions 218 are engaged with engagement recesses 232 formed on the inner peripheral surface of the open end 231 of the cap 230. Thus, the cap 230 is fitted into the cap attachment portion 215 of the case 210, and the cap 230 is attached to the case 210 by attaching the screw 250 to the attachment hole 233 formed in the opening end 231. Fixed to.
[0029]
In addition, a screw portion 261 provided at the end of the yoke 260 is inserted into the attachment hole 216 of the cap attachment portion 215 of the case 210. A coil member 263 wound in the axial direction of the yoke 260 is interposed in the body portion 265 of the yoke 260, and the yoke 260 and the coil member 263 are attached by screwing a nut 264 to the screw portion 261 of the yoke 260. It is fixed to the cap attaching part 215.
[0030]
In the vicinity of the cap 230, a magnet 280 housed in the magnet keeper 281 is disposed so as to face the head 262 of the yoke 260 disposed in the cap 230.
[0031]
At the end of the magnet keeper 281, a spoke hole 282 is formed, and a slight difference is disposed.
[0032]
Next, an assembly procedure of the bicycle rear safety device having such a configuration will be described. First, after the lens portion 122 of the lens body 120 is press-fitted into the small hole 112 of the reflection plate body 111 of the reflection plate 110, the inner end of the reflection plate body 111 protrudes from the lower surface side of the outer peripheral end 113 and the small hole 112. Ultrasonic waves, heat, or the like is applied to and welded to the joining portions A and B of the peripheral rib 114 and the outer peripheral end 123 of the flange 121 of the lens body 120 and the base 124 of the lens portion 122 to assemble the reflector unit 100 side.
[0033]
Next, the apparatus main body 200 side is assembled. The other end 222 side of the PC board 220 to which the lead terminal 241 of the LED 240 is soldered is inserted from the inside of the case 210 into the insertion hole 214, and the one end 221 side is connected to the case. The PC board 220 is fixed inside the case 210 by press-fitting between the holding piece 212 inside the 210 and the receiving seat 213. At this time, the end of the coil member 263 is soldered to the PC board 220 side, and the coil member 263 and the LED 240 are made conductive.
[0034]
Next, with the coil member 263 interposed in the body portion 265 of the yoke 260, the screw portion 261 is inserted into the attachment hole 216 of the cap attachment portion 215, and the nut 264 is screwed into the screw portion 261, whereby the yoke 260 and The coil member 263 is fixed to the cap attachment part 215.
[0035]
Finally, the engagement recess 232 of the opening end 231 of the cap 230 is engaged with the engagement protrusion 218 of the cap attachment part 215 of the case 210 to fit the cap 230 into the case 210, and then the opening end 231 The assembly is completed by attaching the screw 250 to the attachment hole 233 and fixing the cap 230 to the case 210.
[0036]
When the bicycle rear safety device assembled in this way is attached to a bicycle, it is performed as follows.
[0037]
First, in a state where the spoke 290 of the bicycle is inserted into the spoke hole 282 formed at the end portion of the magnet keeper 281, the magnet keeper 281 is pushed into the center side of the rear wheel. Thereby, the space | interval of the adjacent spoke 290 extended radially from the center part of a rear-wheel gradually narrows, and the edge part of the magnet keeper 281 is hold | maintained in the crimping | compression-bonded state between the two spokes 290.
[0038]
On the other hand, when mounting on the apparatus main body 200 side, a position where the head 262 of the yoke 260 inside the cap 230 faces the magnet 280 of the magnet keeper 281 on the bicycle frame 270 is searched and provided on the outer periphery of the case 210. By fastening the attached mounting member 205 to the frame 270, the apparatus main body 200 side is fixed to the bicycle frame 270 side.
[0039]
Next, the operation of the bicycle rear safety device having such a configuration will be described.
First, when the bicycle is run, the magnet 280 of the magnet keeper 281 periodically passes near the head 262 of the yoke 260 according to the rotational speed of the rear wheel.
[0040]
At this time, when a magnetic flux is generated by the magnet 280 in the yoke 260, a voltage is induced in the coil member 263, so that a current is supplied to the LED 240 through the pattern of the PC plate 220 and the lead terminal 241 that are conductive to the coil member 263. LED 240 emits light. Light from the LED 240 is collected by the lens unit 122 of the lens body 120 and emitted to the outside.
[0041]
At this time, the light emission cycle of the LED 240 is narrowed or widened according to the traveling speed of the bicycle. Therefore, it is possible to recognize the traveling speed of the bicycle according to the light emitting state of the LED 240.
[0042]
Furthermore, the light from the headlight from the rear vehicle or the like is reflected by the reflecting plate body 111 of the reflecting plate 110 disposed around the lens unit 122.
[0043]
At this time, since the lens portion 122 of the lens body 120 and the reflecting plate body 111 of the reflecting plate 110 are disposed coaxially, the light emitted from the lens portion 122 and the reflected light from the reflecting plate body 111 are emitted. Since the points are the same, it is easy to distinguish between the blinking light of the LED 240 and the reflected light of the reflector plate 111.
[0044]
As described above, in this embodiment, the reflector plate 111, the flange 121, and the lens portion 122 provided in the middle of the flange 121 are inserted into the small hole 112 formed in the middle of the reflector plate 111. Since the joining parts A and B are closely fixed and the back side of the reflector 111 is kept in a sealed state, when the flange 121 and the case 210 housing the LED 240 are attached, the inside of the case is sealed as in the past. It is no longer necessary to maintain the state, and the design constraints on the case side can be greatly relaxed.
[0045]
In addition, since the illuminant is made to emit light as the magnetic material attached to the spoke side approaches periodically, there is no need to route a cord for supplying power to the illuminant as in the past. The restrictions are greatly relaxed.
[0046]
Furthermore, since the power for causing the LED 240 to emit light is obtained by the periodic approaching operation of the magnet 280 as the bicycle travels, the LED 240 is not required to be replaced when the battery runs out as in the prior art. Since the light emitting operation can be continued, the self-light emitting function by the LED 240 and the reflecting function by the reflector plate 111 can be maintained semipermanently, and the safety is further improved as compared with the reflector having only the conventional reflecting function. .
[0047]
Furthermore, by arranging the lens portion 122 provided in the middle of the flange 121 in the small hole 112 formed in the middle of the reflector plate 111, the reflector plate 111 and the lens portion 122 are arranged coaxially. Since the emission points of the light from the LED 240 and the reflected light from the reflecting plate body 111 are the same, the reflection plate body 111 and the lens unit 122 have the minimum necessary without impairing the distinguishability between the two lights. Since reflection and light emission areas can be obtained, the external dimensions of the reflector plate 111 can be theoretically minimized, and the apparatus can be miniaturized.
[0048]
【The invention's effect】
As described above, according to the bicycle rear safety device of the present invention, in the state where the lens portion provided in the middle of the flange portion is inserted into the small hole formed in the middle of the reflector plate body, The joint part between the body and the flange is closely fixed, and the back side of the reflector is kept in a sealed state. Therefore, when attaching the flange and the case housing the light emitter, It is no longer necessary to maintain a sealed state, and design restrictions can be greatly relaxed in terms of appearance and structure on the case side.
[0049]
In addition, since the illuminant is made to emit light as the magnetic material attached to the spoke side approaches periodically, there is no need to route a cord for supplying power to the illuminant as in the past. Can be greatly relaxed.
[0050]
In addition, since the power required to make the illuminant emit light by the periodic approach of the magnetic body as the bicycle runs, it is possible to emit light without having to replace the battery when the battery runs out as in the past. Since the light emission operation of the body can be continued, the self-light emission function by the light emitter and the reflection function by the reflector plate can be maintained semipermanently, and safety is improved compared to a reflector having only a conventional reflection function. Can be increased.
[0051]
Furthermore, by arranging the lens portion provided in the middle of the flange portion in the small hole formed in the middle of the reflector plate, the reflector plate and the lens portion are arranged coaxially, and the light emitter Since the emission points of the light from the reflector and the reflected light from the reflector plate are made the same, the necessary minimum reflection and light emission area can be obtained in the reflector plate and the lens part without impairing the distinguishability of the light of both. Therefore, the external dimensions of the reflector plate body can be theoretically minimized, and the apparatus can be miniaturized.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view showing a conventional reflector.
FIG. 2 is a cross-sectional view showing another conventional reflector.
FIG. 3 is a perspective view showing an embodiment of a bicycle rear safety device of the present invention.
4 is a cross-sectional view showing the bicycle rear safety device of FIG. 3. FIG.
FIG. 5 is an exploded perspective view showing the bicycle rear safety device of FIG. 3;
6 is a cross-sectional view showing the reflector unit of FIG. 3. FIG.
[Explanation of symbols]
A, B Junction C Internal space 100 Reflector unit 110 Reflector 111 Reflector body 112 Small hole 120 Lens body 121 Flange 122 Lens part 200 Device body 210 Case 215 Cap mounting part 220 PC plate 230 Cap 240 LED
260 Yoke 261 Screw part 264 Nut 270 Frame 280 Magnet 281 Magnet keeper 290 Spoke

Claims (1)

A lens part provided in the middle of the flange part is inserted into a small hole formed in the middle of the reflector body from the case side attached to the back side of the flange part, and the lens part and the reflector body are coaxial. In this inserted state, the joined portion of the reflector plate and the flange portion is closely fixed so as to keep the back side of the reflector plate in a sealed state, and the lens portion is placed inside the case. A light emitting body is disposed so as to face the magnetic circuit, and a magnetic circuit is provided in the case, and a magnetic body that periodically approaches the magnetic circuit is attached to the spoke side. A bicycle rear safety device characterized in that the light emitter is caused to emit light by electric power induced in the magnetic circuit as it approaches.

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