JP2006103455A - Side-view mirror with light - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a side-view mirror with a light capable of automatically illuminating a wide range of a doorway part in getting off from a driver room, turning on the light without a power supply depending on a vehicle body side and illuminating for a required time. <P>SOLUTION: In the side-view mirror 10 provided on an outer side part of the driver room of the vehicle, an illumination light unit 20 arranged with a plurality of LEDs 22 is arranged on a lower end 11A of a body casing 11 and an electricity accumulation means 16 connected to a generator (vibration generator 15) and a control means 30 for controlling lighting of the light source are built in the body casing 11. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a side mirror with a light that is provided with a light that is turned on for a predetermined time by detecting the stoppage of an attached vehicle, a power source thereof, and a lighting control means.

  In construction machines such as hydraulic excavators and bulldozers, work vehicles are mainly vehicles that work outdoors. Therefore, when working at night, the boom or arm of the work machine is used so that it is easy to grasp the situation of the excavation site with, for example, a hydraulic excavator. The light is installed in the right place, and the front lighting is performed. Therefore, a work vehicle equipped with such an illumination lamp can be operated at night. However, at work sites that are not externally illuminated, when the operator finishes work at night and the operator turns off the work vehicle lights and descends from the driver's seat to the ground, there will be darkness if there is no surrounding light. It is very bad to get off. For this reason, an operator who feels inconvenience prepares a flashlight, and when getting off the vehicle, the flashlight illuminates his feet and gets off. Further, Patent Document 1 discloses that a boarding / unloading lamp is provided in a handrail support bracket provided along the outside of the driver's cab so that his / her feet can be illuminated when entering / leaving the driver's cab. .

JP 2002-317467 A

  As described above, the conventional work vehicle has a problem that the feet are dark because the lights of the vehicle are all extinguished and the surroundings are dark when the work is performed at night, particularly when the work is finished. For that reason, if you shine with a flashlight that the operator brings, you can freely illuminate your feet and secure safety, but you can take it away after use or store it outside the vehicle It is necessary to provide a place to perform, which is inconvenient. In the case of external storage, there is a risk of losing it, and there is a problem that it is not useful if it is not brought into the cab before night work.

  On the other hand, the one disclosed in Patent Document 1 is a configuration in which a switch is provided above and below a handrail provided outside the operator's cab, and the foot lamp is turned on by turning on either of the upper and lower switches. The foot lamp is lit by the operator operating the switch when getting in and out of the cab, and it is inconvenient because it is not lit unless the switch is turned on. Further, since the mounting position is specified at the lower part, there is a problem that the illumination range is small and insufficient to illuminate the feet. In addition, since the power source depends on the vehicle battery, there is a problem that if power is turned off, power is wasted. In addition, as mentioned above, as a power source of a small lamp, it is also known that solar light is stored in a battery recently. Therefore, if such a technique is used as the power source of the foot lamp, it is possible to eliminate vehicle battery consumption due to forgetting to turn it off, but it is still impossible to eliminate insufficient lighting.

  The present invention has been made to solve such problems, and can automatically illuminate a wide range of the elevator when getting off from the driver's cab where the most illuminating lighting is necessary, and the power supply can be turned on. An object of the present invention is to provide a side mirror with a light that can be turned on and illuminated for a required time without depending on the vehicle body side.

The lighted side mirror according to the present invention made to achieve the above object is as follows.
A side mirror attached to the outer side of a driver's cab of a vehicle, wherein a light source is disposed in a lower part of the main body casing, a power storage means connected to a power generator inside the main body casing, and a control means for controlling lighting of the light source It is characterized by being built in (first invention).

  In the present invention, the electrical energy supplied to the light source is stored in the storage means electrical energy generated by the power generator, and a vibration detection sensor that detects the elimination of vibrations generated by the vehicle when the operation is stopped, When both the optical sensor for detecting a decrease in illuminance emits a detection signal, it is preferable that the control means controls to supply the electric energy from the power storage means to the light source to turn on the light (second invention). .

  In the present invention, it is preferable that a vibration power generator or a solar cell is used for the power generation device, and a secondary battery or an electric double layer capacitor is used as the power storage means (third invention).

  The light source may have a configuration in which a plurality of light emitting diodes are arranged in a single row or a plurality of rows on the front side of a light projecting reflection plate attached to the main body casing (fourth invention).

  In the third aspect of the invention, the solar cell used as the power generator is preferably attached to the upper top surface or the upper back surface of the main casing (the fifth aspect).

  According to the first aspect of the present invention, the light source is disposed at the lower part of the main body casing of the side mirror, and the electric energy generated by the power generation device assembled to the main body casing is charged to the power storage means inside the main body casing during daytime work. Then, the electric energy can be supplied from the power storage means to the light source by the control means under a preset condition (at the time when the work is finished at night) and can be turned on for a required time. This side mirror is attached above the outside of the driver's cab so that the operator can see the rear side of the vehicle at the driver's seat. It can illuminate over a wide area, and even if the vehicle lights are turned off after the end of work, even if it is in the dark, when the operator gets off after the end of work, the feet are illuminated brightly, and it can get off without causing trouble There is an effect. It should be noted that if the light source is set by the control means to be lit for a predetermined time, it is not necessary to turn off the light source. Moreover, since all the power supplies are also incorporated in the side mirrors and wiring with the vehicle body is not required, the illumination function can be exhibited only with this side mirror, which is convenient. In addition, since the attached device can be used effectively as an installation place, there is an advantage that it is not complicated.

  Further, according to the second invention, the vibration generated during driving of the vehicle provided with the side mirror is erased at the end of the driving, the vibration is eliminated, and the ambient illuminance is reduced. The control means is operated by the detection signals of the vibration sensor and the optical sensor so that electric energy is supplied from the power storage means to the light source for a predetermined time. Therefore, the light source does not turn on in the daytime, and only when getting off after work at night, it is designed to illuminate a wide area under the cab from the lower part of the side mirror. Even so, when the illumination is necessary, the purpose can be achieved by discharging the stored electrical energy, and it is small in size and can exhibit an effective function.

  According to the third aspect of the invention, if a vibration power generator is incorporated as a power generation device, power can be generated using vibration generated and propagated by driving the engine during operation of the vehicle. In addition, when using a solar cell as a power generation device, sunlight can be converted into electric energy for use, and natural energy can be utilized without preparing and supplying separate energy regardless of which method is used. And effective. The electric energy obtained by the power generator can be stored effectively by charging the secondary battery or the electric double layer capacitor and storing it in a long time in the daytime even if the power generation capacity is small. In addition, there is an advantage that it can operate without any trouble even if it is attached to a use place where the condition with vibration is not good, and can withstand long-term use.

  Furthermore, by adopting the configuration of the fourth invention, the durability is high even under harsh conditions due to the combination of long life of the light-emitting diode, durability against vibration, and low electric energy consumption, and the arrangement thereof is selected. Thus, it is possible to effectively illuminate by widening the light projection range with less power.

  According to the fifth aspect of the present invention, the light receiving effect of sunlight can be enhanced by utilizing the characteristics of the side mirror body that is mounted using the high position of the vehicle.

  Next, specific embodiments of the side mirror with light according to the present invention will be described with reference to the drawings.

  FIG. 1 shows a main part of a work vehicle in which a side mirror with a light according to the present invention is used, and FIG. 2 shows a longitudinal sectional view of the side mirror with a light according to the present embodiment. Further, FIG. 3 shows an AA view in FIG. 2, and FIG. 4 shows a control block diagram of this embodiment.

  A side mirror 10 with a light according to the present embodiment (hereinafter simply referred to as a side mirror 10 for convenience of explanation) is an outer portion of a driver's cab in a work vehicle, for example, a construction machine such as a hydraulic excavator or a bulldozer, or a cargo handling machine such as a dump truck. It is used by attaching to.

  As an embodiment, an aspect in the case of being used in a hydraulic excavator will be described. The hydraulic excavator 2 is an operation in which a base end is supported on a front upper portion of an upper swing body 4 provided so as to be rotatable on the lower traveling body 3 and is pivoted up and down by an actuator with a base end supported by the front portion on the upper swing body 4. A machine 5 (consisting of a boom, an arm, an excavator, and a hydraulic cylinder that operates them) is provided, and a cab 6 is mounted on the side of the support part of the work machine 5. The side mirror 10 according to the present embodiment is attached to the vicinity of the upper portion of the handrail 7 provided along the outside of the front pillar 6b at the position in front of the door 6a at the entrance / exit of the driver's cab 6 so that the operator can turn upward from the driver's seat. It is provided so that the situation behind the outside of the body 4 can be visually recognized.

  As shown in FIGS. 2 to 4, the side mirror 10 according to the present embodiment is incorporated in a main body casing 11 having a required dimension and a mirror 12 attached to the front surface by a known structure, and in the main body casing 11. The power generation means (corresponding to the power generation apparatus of the present invention), its control means, and the power storage means and the illumination means (corresponding to the light source of the present invention) incorporated in the lower end of the main body casing.

  The main body casing 11 is formed in a shape in which a rectangular front surface that can secure a mirror surface of a required area by slightly increasing the inner pocket is opened, and a mirror 12 of a convex mirror is fitted into the open portion so that the periphery is the periphery of the main body casing 11. It is fixed by an attachment ring 13 made of an elastic body (rubber, rubber-like synthetic resin, etc.) surrounding and engaging the portion 11a. Further, a rectangular opening 11b is provided in the width direction of the lower end portion 11A of the main body casing 11, and an illumination lamp unit 20 (to be described later) can be mounted by illuminating the opening 11b.

  Inside the main body casing 11, a power generation means 15, its control means and a power storage means 16 are supported and built in the inner surface of the main body casing 11. As the power generation means 15, for example, a vibration power generator (hereinafter referred to as the vibration power generator 15) having a configuration in which a piezoelectric bimorph (a power generation bimorph module, for example, manufactured by Nissin Electric) is housed in a casing is used. It is attached to the inner surface of the casing 11 so that vibration can be easily transmitted to the module through the main body casing 11. Further, as the power storage means 16 (hereinafter referred to as a rechargeable secondary battery 16), a rechargeable secondary battery such as a nickel metal hydride battery, a lithium ion battery, or a nickel cadmium battery is housed in a protective container (including a protection circuit against overcharge). It is mounted on the inner surface.

  The illuminating lamp unit 20 has a plurality of light emitting diodes 22 (hereinafter referred to as LEDs 22) in a case 21 that is inserted and fixed in a rectangular opening 11b formed in the lower end portion 11A of the main body casing 11. Are arranged, a reflector 23 is arranged from the back to both sides, and a light projection plate 24 in the shape of a condensing lens is attached to the front side.

  Further, the control means 30 includes a microcomputer 31, and an illuminance signal detected by an optical sensor 32 attached so as to position the sensing unit at a suitable position on the outer surface of the main body casing 11 and the inner surface of the main body casing 11. When the vibration signal detected by the vibration sensor 33 attached so as to detect the propagation of vibration is input to the microcomputer 31, the data input in the storage unit in advance is compared with the calculation unit. Thereafter, when the vibration data based on the vibration signal is equal to or lower than the set value and the illuminance data based on the illuminance signal is equal to or lower than the set value, the electric energy from the rechargeable secondary battery 16 is transferred to the LEDs 22 of the illuminating lamp unit 20 for a certain time. The timer 34 is set to supply and illuminate.

  On the other hand, the electric energy generated by the vibration power generator 15 is once charged in the rechargeable secondary battery 16, and the LED 22 is transmitted from the secondary battery 16 through the booster circuit 35 by the command signal of the microcomputer 31. After the pressure is increased to the condition for emitting light, the LED 22 group is supplied. Specifically, the electric energy of 2.5V is boosted to 5V by the booster circuit 35 and supplied to the LED 22.

  The side mirror 10 of the present embodiment configured as described above supports the upper mounting seat 11c of the main body casing 11 and the upper position of the handrail 7 on the upper portion of the front outer side surface of the cab 6 of the excavator 2 as described above. The mirror 12 is used by adjusting the surface of the mirror 12 so that the operator in the driver's seat can visually recognize the situation behind the outer side of the upper swing body 4.

  In the side mirror 10 thus mounted outside the cab 6, during daytime driving work, vibrations that are constantly generated by driving an engine (not shown) mounted on the upper swing body 4 during driving are transmitted from the cab 6 through the support arm 8. Is transmitted to the main casing 11. The built-in vibration generator 15 is activated by this vibration, and the vibration energy is converted into electric energy by the operation of the piezoelectric bimorph, and the generated electric energy is sent out. All the generated electric energy is temporarily stored in the rechargeable secondary battery 16. In short, the vibration power generator 15 is activated in response to vibrations caused by driving the vehicle during the daytime, and charges the rechargeable secondary battery 16 with the generated electric energy.

  At this daytime, since the illuminance detected by the optical sensor 32 is high and the presence or absence of vibration by the vibration sensor 33 constantly detects vibration during operation, the microcomputer 31 of the control means 30 is not connected to the outside. Does not emit a signal. Even if the operation is stopped during the daytime (in a state where the illuminance is high), since the detection data by the optical sensor 32 is higher than the set value, the illumination command signal is not issued from the microcomputer 31.

  Eventually, when the sun goes down and the work is finished, the operator turns off the cab 6 for closing and closes the door 6a at the entrance and exits from the vehicle, and the detection data of the illuminance by the optical sensor 32 is set. The vibration that the vibration sensor 33 has detected so far is eliminated, so that the rechargeable secondary battery 16 (power storage means) can illuminate the illuminating lamp by the comparison calculation process in the calculation unit of the microcomputer 31. If a command signal that allows the LED 22 of the unit 20 to be energized is issued and the non-vibration state continues for a preset time (for example, 1 to 5 seconds), the power storage means (rechargeable secondary battery 16) transfers to the LED 22. The switch device 36 (Zena diode) provided in the circuit of the circuit is activated and supplied from the secondary battery 16 for the required time (for example, 10 minutes).The set time can be arbitrarily set by the timer 34 as necessary, and is not limited to the above time.

  The rechargeable secondary battery 16 does not discharge the electric energy generated by the vibration power generator 15 during the daytime until it is supplied to the LED 22 by the function of the control means 30, so that even if the power generation amount is small, it is preset. Electricity can be stored within the range of the electric capacity. Therefore, the discharge is started by the operation of the switch device 36, and the LED 22 of the illumination lamp unit 20 is caused to emit light.

  When the LED 22 of the illuminating lamp unit 20 emits light in this way, in the illuminating lamp unit 20, a plurality of LEDs 22 are arranged, the reflecting plate 23 is provided, and the light projecting plate 24 formed in the shape of a condensing lens is attached to the front side. Light is projected in a wide range below the mounting position, particularly in the vicinity of the getting-on / off step. Then, since the mounting position of the side mirror 10 is just a boarding / alighting position to / from the cab 6 of the vehicle, the illumination lamp unit 20 provided at the lower end of the side mirror 10 provided at a high place illuminates directly below. When the operator gets out of the driver's cab 6, his feet are illuminated and he can get off without any trouble. Therefore, even when there is no illumination around the work site and it is dark, it is possible to easily move from a high position.

  When a preset time elapses, the illumination is turned off by the control means 30 with the supply of electrical energy to the LED 22 cut off. Therefore, it is possible to illuminate the required time without the operator performing a switch on / off operation. In use on the next day, when the above-described operation is repeated and vibration is generated, the vibration power generator 15 is activated to charge the power storage means 16 and correspond to the next use.

  As described above, the side mirror 10 according to the present embodiment performs an original function as a side mirror, and at the same time, uses the vibration during driving of the vehicle to secure the electric energy necessary for lighting and sense the stop of the vibration. Only when a decrease in illuminance due to sunshine is detected, it has a function that can automatically secure the lighting of the feet when the operator gets off at the end of work at night. Natural energy can be utilized without requiring supply, and it is more effective. Further, since no wiring is required, there is an advantage that it can be attached to an existing vehicle without requiring special processing.

  In the above description of the embodiment, the description has been made on the case where the vibration power generator 15 is used as the power generation device. In this case, as shown in FIG. 5 as an embodiment, solar cells are attached from the outer surface of the main body casing 11, for example, from the top to the upper surface thereof, and the power storage in the main body casing 11 is performed from the cells of the solar cells 27. An electric circuit is formed so that electric energy can be stored in the means 16 (for example, the above-described rechargeable secondary battery), and the LED 22 of the illuminating lamp unit 20 is controlled by the control means 30 controlled by the microcomputer 31 as described above. When the predetermined condition is satisfied, it is possible to illuminate by energizing the power storage means 16.

  According to such an embodiment, energy from sunlight is collected by the solar battery 27 and charged in the power storage means 16 during the sunshine hours without being directly related to the vibration of the vehicle. Therefore, there is an advantage that static electricity can be generated without using a device having an operation function like the vibration power generator.

  In addition to the rechargeable secondary battery, an electric double layer capacitor can be used as the power storage means. By using such power storage means, it is possible to improve workability by increasing the degree of illumination in a short time by shortening the discharge time.

  Further, the side mirror of the present invention has been described as being applied to a hydraulic excavator as the above-described embodiment. However, the side mirror can also be used in a work vehicle engaged in outdoor work, in which case the side mirror is attached. Needless to say, by adopting a structure corresponding to a machine (work vehicle) that uses the structure, the structure can be applied to other models.

External view of hydraulic excavator provided with side mirror with light according to the present invention Vertical sectional view of a side mirror with light of this embodiment AA view in FIG. Control block diagram of this embodiment Explanatory drawing of other embodiment

Explanation of symbols

2 hydraulic excavator 6 cab 10 side mirror 11 main body casing 11A lower end portion of main body casing 12 mirror 15 vibration power generator (power generation device)
16 Rechargeable secondary battery (power storage means)
20 Lighting unit 22 Light-emitting diode (LED)
23 reflector 27 solar cell 30 control means 32 optical sensor 33 vibration sensor

Claims (5)

  A side mirror attached to the outer side of a driver's cab of a vehicle, wherein a light source is disposed in a lower part of the main body casing, a power storage means connected to a power generator inside the main body casing, and a control means for controlling lighting of the light source A side mirror with light, which is built-in.   The electric energy supplied to the light source is stored in the power storage means by storing the electric energy generated by the power generation device, and a vibration detection sensor that detects the elimination of vibrations generated by the vehicle when the operation is stopped, and a decrease in ambient illuminance. 2. The side mirror with light according to claim 1, wherein, when both of the optical sensors to be detected emit a detection signal, the control means controls to supply electric energy from the power storage means to the light source and to turn on the light.   The side mirror with light according to claim 1 or 2, wherein a vibration power generator or a solar battery is used as the power generation device, and a secondary battery or an electric double layer capacitor is used as the power storage means.   3. The side mirror with light according to claim 1, wherein the light source has a configuration in which a plurality of light emitting diodes are arranged in a single row or a plurality of rows on a front side of a light reflecting plate that is attached to a main body casing.   The side mirror with a light according to claim 3, wherein the solar cell used as the power generation device is attached to an upper top surface or an upper back surface portion of the main body casing.

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