JP3833342B2 - Self-luminous gaze guidance mark - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a self-luminous gaze guidance mark that is installed on a side of a road or the like and guides the gaze of a vehicle driver with a light emitter at night.
[0002]
[Prior art]
Conventionally, as this kind of self-luminous gaze guidance mark, as described in Japanese Patent Laid-Open No. 8-269920, a self-cleaning self-luminous gaze having a cleaning member for cleaning the reflecting surface and the light-emitting surface is used. Guide signs are known. In addition, JP-A-8-302625 describes a self-cleaning self-luminous gaze guidance mark provided with a cleaning member for cleaning only the reflecting surface. JP-A-113214, JP-A-7-113215, and JP-A-8-20918 each include a cleaning member for cleaning the reflecting surface, which is a reflective gaze guidance mark, not a self-luminous type. A reflective gaze guidance mark is described.
[0003]
[Problems to be solved by the invention]
The self-cleaning self-luminous line-of-sight guide described in the above-mentioned Japanese Patent Application Laid-Open No. 8-269920 uses wind generated by a traveling vehicle as a power source for the cleaning member.
[0004]
However, the wind that the line-of-sight guide mark receives from the traveling of the vehicle is instantaneous, and the wind pressure varies significantly depending on the traveling speed of the vehicle.For example, it is sufficient when traveling on a sharply curved and steep slope. Since the vehicle must travel while decelerating, the generated wind pressure is extremely small. In such a case, the load applied to the cleaning member is larger than the torque of the cleaning member, and the cleaning member does not rotate at all or only slightly rotates, so that the reflective surface and the light emitting surface are sufficiently cleaned. It will be impossible. Furthermore, if the situation that the number of passing vehicles is small in addition to such a situation, it is considered that sufficient cleaning becomes even more difficult.
[0005]
In view of the above points, the present invention provides a self-luminous gaze guidance mark that can regularly clean the reflective surface and the light-emitting surface every day without being limited by the situation where the gaze guidance mark is installed. Objective.
[0006]
[Means for Solving the Problems]
The self-luminous gaze guidance mark according to the present invention is:
As described in claim 1,
A light emitting body, a cleaning member for cleaning the reflecting surface and the light emitting surface, a motor for rotating the cleaning member, a solar battery, a power storage body for light emission that stores an electromotive force of the solar battery, and a power storage body for the motor, A day / night discrimination circuit that discriminates day and night based on the electromotive force of the solar cell,
When the day / night discrimination circuit determines that it is night, the motor is driven by the electric charge stored in the motor power storage unit, and the cleaning member is rotated to clean the reflective surface and the light emitting surface. .
[0007]
The self-luminous gaze guidance mark according to the present invention is:
As described in claim 2,
In Claim 1, A cleaning member pressure automatic adjustment mechanism is provided between the cleaning member and the output shaft of the motor.
[0008]
The self-luminous gaze guidance mark according to the present invention is:
As described in claim 3,
In Claim 1 or Claim 2, an overload slip mechanism is provided between the cleaning member and the output shaft of the motor.
[0009]
[Effects of the invention]
According to the first aspect of the present invention, the electromotive force of the solar cell is stored in the light-emitting power storage unit and the motor power storage unit during the day, and the charge stored in the motor power storage unit at night is stored. By driving the motor and rotating the cleaning member to clean the reflecting surface and the light emitting surface, the reflecting surface and the light emitting surface can be cleaned regularly every day.
[0010]
According to the second aspect of the present invention, since the cleaning member pressure automatic adjustment mechanism is provided between the cleaning member and the output shaft of the motor, the cleaning member is always desirable even if the cleaning member is worn out due to long-term use. Pressure can be obtained and deterioration of cleaning ability can be prevented.
[0011]
According to the third aspect of the present invention, since the overload slip mechanism is provided between the cleaning member and the output shaft of the motor, the cleaning member slips when some overload is applied to the cleaning member, and the motor Since the output shaft can continue to rotate, for example, even if a child touches the cleaning member, it does not need to be injured and the life of the motor can be extended.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0013]
1 to 5 show a self-luminous gaze guidance mark according to one embodiment, FIG. 1 is a front view thereof, FIG. 2A is a side view, and FIG. 3 is a plan sectional view showing a power transmission unit that transmits the power of the motor to the cleaning member, FIG. 4 is an operation principle diagram of the power transmission unit, and FIG. 5 is a configuration diagram of the electric system. Show.
[0014]
The self-luminous gaze guidance mark according to the present embodiment includes a gaze guidance specimen body portion 1 having a substantially tongue shape attached to a support (not shown).
[0015]
The front surface of the line-of-sight sample body 1 has a circular reflecting surface 2 that reflects the light of the headlight of an automobile, and a plurality of LEDs 3 as light emitters are provided on the reflecting surface 2 at appropriate intervals. It is arranged. Thus, the circular area in front of the line-of-sight guiding specimen body 1 constitutes the reflecting surface and the light emitting surface 4.
[0016]
Further, a solar panel (solar cell) 5 is disposed on the upper surface of the line-of-sight guiding specimen body portion 1. The solar panel 5 is a power source common to the LED 3 and a motor 10 described later. The solar panel may be a separate solar panel dedicated to the LED 3 and dedicated to the motor 10.
[0017]
Further, a rotatable cleaning brush (cleaning member) 6 for cleaning the reflecting surface and the light emitting surface 4 is disposed in front of the reflecting surface and the light emitting surface 4 of the line-of-sight guide specimen unit 1.
[0018]
The cleaning brush 6 is fixed to the outer circumferential surface of the case 7 having a U-shaped cross section located at the center of rotation and the outer peripheral surface of the case 7 at equal intervals, and comes into contact with the reflecting surface and the light emitting surface 4 of the line-of-sight sample body 1. A plurality of brush main body portions 8 (two brush main body portions 8 in this embodiment) and a hollow cylindrical brush-side magnet portion 9 fixed to the inner peripheral surface of the case 7 are configured. As shown in FIG. 4, the hollow cylindrical brush-side magnet portion 9 has a plurality of magnetized portions 9a arranged at equal intervals in the circumferential direction, and the N pole and the S pole of each magnetized portion 9a. Is formed along the radial direction of the brush-side magnet portion 9.
[0019]
A motor 10 serving as a power source for the cleaning brush 6 is provided inside the line-of-sight guiding specimen body 1.
[0020]
A worm 11 is fixed to the output shaft of the motor 10, and a worm wheel 12 is engaged with the worm 11. The worm 11 and the worm wheel 12 constitute a reduction gear.
[0021]
A hollow cylindrical motor-side magnet portion 14 is fixed to the rotating shaft 13 of the worm wheel 12. As shown in FIG. 4, the motor side magnet portion 14 has a plurality of magnetized portions 14 a at positions facing the magnetized portions 9 a of the brush side magnet portion 9, and each magnetized portion of the motor side magnet portion 14. The N pole and the S pole of the portion 14 a are formed along the radial direction of the motor side magnet portion 14 so as to attract the magnetized portion 9 a of the brush side magnet portion 9.
[0022]
The positional relationship in the axial direction between the brush-side magnet unit 9 and the motor-side magnet unit 14 is such that the brush-side magnet unit 9 always receives a magnetic attractive force from the motor-side magnet unit 14 along the axial direction of the brush-side magnet unit 9. It is defined in the positional relationship that can. Due to this magnetic attraction force, the brush tip 8 a of the brush body 8 is in contact with the reflecting surface and the light emitting surface 4 of the line-of-sight guiding specimen body 1.
[0023]
The coil spring 15 disposed between the stepped portion 13a of the worm wheel rotating shaft 13 and the back surface 7a of the case 7 is a coil spring for preventing rattling and displacement.
[0024]
In the self-luminous line-of-sight guide having the above-described configuration, when the motor 10 is operated, the torque of the motor 10 passes through the motor output shaft, the worm 11, the worm wheel 12, and the rotating shaft 13 in this order. Is transmitted to the motor side magnet portion 14. During the rotation of the motor-side magnet unit 14, the brush-side magnet unit 9 receives a magnetic attraction force from the motor-side magnet unit 14, and contacts the reflecting surface and the light-emitting surface 4 of the line-of-sight guiding specimen body unit 1. Following and rotating, the reflecting surface and the light emitting surface 4 are cleaned.
[0025]
If the cleaning brush 6 is overloaded for some reason during the operation of the motor 10, the brush-side magnet unit 9 is not in contact with the motor-side magnet unit 14, so the cleaning brush 6 slips and the motor 10 The rotation can be continued, for example, even if a child touches the cleaning brush 6, it is not necessary to be injured, and the motor 10 can be prevented from being burned.
[0026]
Further, even if the brush tip 8a of the brush body 8 is worn due to long-term use of the cleaning brush 6, the brush-side magnet 9 receives the magnetic attractive force along the axial direction from the motor-side magnet 14, so the brush The brush tip 8a of the main body portion 8 is in contact with the reflecting surface and the light emitting surface 4 and can clean the reflecting surface and the light emitting surface 4.
[0027]
Next, the electrical system of the self-luminous gaze guidance mark configured as described above will be described with reference to FIG.
[0028]
The solar battery 5 is connected to a power storage body for a motor such as a lead storage battery, an alkaline battery or an electric double layer capacitor 17 via a backflow prevention diode 16, a charge control circuit 18 and a backflow prevention diode 20, and for backflow prevention. A light emitting accumulator such as a lead storage battery, an alkaline battery or an electric double layer capacitor 19 is connected through the diode 16, the charge control circuit 18, and the backflow prevention diode 21.
[0029]
The charging control circuit 18 includes a direct connection charging circuit 18a, a constant voltage charging circuit 18b, and a voltage monitoring circuit 18c. In addition, the charge control circuit 18 is comprised only by a constant voltage circuit, when the electrical storage body 17 for motors and the electrical storage body 19 for light emission are storage batteries.
[0030]
A motor drive circuit 23 that drives the motor 10 is connected to the motor power storage unit 17. On the other hand, a blinking control circuit 24 for blinking the LED 3 is connected to the light emitting power storage unit 19.
[0031]
The motor drive circuit 23 is controlled by a day / night discrimination circuit 22 that performs day / night discrimination based on the magnitude of the electromotive force of the solar cell 5. When the day / night discrimination circuit 22 determines that it is night, the motor power storage unit 17 is charged. The motor 10 is driven by the charged electric charge. Here, the motor 10 is set so as not to rotate when the electric charge charged in the motor power storage unit 17 has been discharged, and to rotate about several tens of times per rotation.
[0032]
The blinking control circuit 24 blinks the LED 3 by the electric charge charged in the light-emitting power storage unit 19 while the day / night discrimination circuit 22 determines that it is night. A vehicle sensor 25 is connected to the blinking control circuit 24. When the vehicle sensor 25 detects a vehicle, the LED 3 blinks at a double speed.
[0033]
As described above, the self-luminous gaze guidance mark according to the present embodiment includes the light emitter 3, the cleaning member 6 that cleans the reflecting surface and the light emitting surface 4, the motor 10 that rotates the cleaning member 6, and the solar cell 5. A light-emitting power storage unit 19 and a motor power storage unit 17 that store the electromotive force of the solar cell 5, and a day / night determination circuit 22 that determines day and night based on the electromotive force of the solar cell 5. When it is determined that it is night, the motor 10 is driven by the electric charge stored in the motor power storage unit 17 and the cleaning member 6 is rotated to clean the reflecting surface and the light emitting surface 4.
[0034]
For this reason, according to the self-luminous gaze guidance mark according to the present embodiment, the reflecting surface and the light emitting surface 4 can be cleaned regularly every day.
[0035]
In addition, the self-luminous gaze guidance mark according to the present embodiment includes a cleaning member pressure automatic adjustment mechanism (brush side magnet portion 9 and motor side magnet portion 14) between the cleaning member 6 and the output shaft of the motor 10. It is characterized by. For this reason, even if the cleaning member 6 is worn due to long-term use, a desirable cleaning member pressure can always be obtained and a reduction in cleaning ability can be prevented.
[0036]
Further, the self-luminous line-of-sight guide according to the present embodiment includes an overload slip mechanism (brush side magnet portion 9 and motor side magnet portion 14) between the cleaning member 6 and the output shaft of the motor 10. And For this reason, when some overload is applied to the cleaning member 6, the cleaning member 6 slips and the motor 10 can continue to rotate. For example, even if a child touches the cleaning member 6, it does not cause injury. The life of the motor 10 can be extended.
[0037]
As the cleaning member 6, a rubber plate may be used instead of the cleaning brush as described above.
[Brief description of the drawings]
FIG. 1 is a front view of a self-luminous gaze guidance mark according to one embodiment.
FIG. 2A is a side view of the same gaze guidance mark, and FIG. 2B is a rear view.
FIG. 3 is a plan sectional view of a power transmission unit.
FIG. 4 is an operation principle diagram of a power transmission unit.
FIG. 5 is a configuration diagram of an electric system.
[Explanation of symbols]
3 LED (light emitter)
4 Reflecting surface and light emitting surface 5 Solar cell 6 Cleaning brush (cleaning member)
9 Brush side magnet (cleaning member pressure automatic adjustment mechanism, overload slip mechanism)
10 Motor 14 Motor side magnet (cleaning member pressure automatic adjustment mechanism, overload slip mechanism)
17 Motor power storage unit 19 Light emitting power storage unit 22 Day / night discrimination circuit

Claims (3)

A light emitting body, a cleaning member for cleaning the reflecting surface and the light emitting surface, a motor for rotating the cleaning member, a solar battery, a power storage body for light emission that stores an electromotive force of the solar battery, and a power storage body for the motor, A day / night discrimination circuit that discriminates day and night based on the electromotive force of the solar cell,
When the day / night discrimination circuit determines that it is night, the motor is driven by the electric charge stored in the motor power storage unit, and the cleaning member is rotated to clean the reflective surface and the light emitting surface. Self-luminous gaze guidance mark. The self-luminous gaze guidance mark according to claim 1, further comprising a cleaning member pressure automatic adjustment mechanism between the cleaning member and the output shaft of the motor. The self-luminous gaze guidance mark according to claim 1, further comprising an overload slip mechanism between the cleaning member and the output shaft of the motor.

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