JP2001018801A - Portable light-emitting device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a portable light-emitting device the blinking condition of which can be easily perceived even during the daytime. SOLUTION: A portable light-emitting device comprises a light-emitting portion 12 located in a cylindrical body 14 with a front side formed with transparent material and equipped with main light-emitting elements 16 the light- emitting angle of which is specified to be within a required range and which face the front side of the cylindrical body 14, supporting legs to support the cylindrical body 14, and a battery fixed at the supporting legs. Inside the cylindrical body 14 or at the supporting legs, a sounding means 36 is provided which sounds only when the main light-emitting elements 16 emit light.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for operating a train or a car temporarily on or near a railroad track or on a road or near a road when performing work in a railroad track, near track work or road work. The present invention relates to a portable light emitting device that alerts a hand, prevents a train or a car from entering a work, and secures the safety of a train, a car, and a worker.

[0002]

2. Description of the Related Art The structure of a conventional portable light emitting device 10 will be described with reference to FIGS. The light emitting unit 12 is disposed in a cylindrical body 14 whose front side (the front side in FIG. 3) is formed transparent, and the light emission angle is set to a predetermined narrow angle so that the light emitting unit 12 faces the front side of the cylindrical body 14. It has an element 16. The light emitting element 16 is, for example, a light emitting diode having strong directivity,
Plural matrixes are arranged on the indicator light board 18 in the same direction. A control board 20 for controlling the blinking of the light emitting section 12 is arranged on the back side of the indicator light board 18 in the cylindrical body 14. The support leg 22 supports the cylindrical body 14 attached to the upper end. A battery 24 for supplying power to the light emitting unit 12 is fixed to the support leg 22. Further, the battery 24 is provided with a switch 26 for turning on / off a current to the light emitting unit 12 disposed in the cylinder 14. The battery 24 includes one in which the battery 24 and the charger are integrated.

[0003] The operation of the portable light emitting device 10 will be described. When the switch 26 provided on the battery 24 is switched from off to on, power is supplied from the battery 24 to the light emitting unit 12. The control board 20 of the light emitting unit 12 outputs a light emission signal for a blinking operation to the light emitting element 16 when the power supply is started. Since the transmission signal is a continuous pulse-like signal having a predetermined cycle, the light emitting element 16 that has received the transmission signal repeats blinking at a predetermined cycle. When the switch 26 provided on the battery 24 is turned off, the power supply from the battery 24 to the light emitting unit 12 is stopped, and the control board 2
The transmission signal output from 0 is also stopped. Therefore, the blinking operation of the light emitting element 16 also stops.

For example, when the portable light emitting device 10 is installed in a railway line or the like, the optical axis of the light emitting element 16 is integrated with, for example, a lower part of the cylindrical body 14 in the vicinity of or near the line to be constructed. By using the scope 17 formed in an intended manner, it is aligned and installed in the direction of entry of the train on the track. The installation location of the portable light-emitting device 10 is set at a location sufficiently distant in the approach direction of the train with reference to the construction position of the track. This is to enable the train driver to recognize the blinking of the light emitting element 16 as far as possible from the construction position. Then, the switch 26 is turned on, and the light emitting element 16 is turned on.
Is set to a continuous blinking state. Since the light emitting element 16 has a very high directivity, a train driver can confirm the blinking of the light emitting element 16 even from a distance of several hundred meters.
Therefore, even if the train accidentally enters the track under construction, the driver can apply the brakes sufficiently short of the construction position to stop the train, and the train construction workers and train crew Safety can be ensured.

[0005]

The precautions in handling the portable light-emitting device 10 are as follows. First, when the light-emitting operation of the portable light-emitting device 10 is stopped due to a failure or the like during the construction work, the portable light-emitting device 10 must be operated quickly. In order to detect this, the construction work is interrupted and workers are evacuated, and that is notified to the department in charge of the railway. Secondly, when the pre-assigned construction time has expired, the portable light emitting device 10 may be left installed for the next construction time, but the light-emitting device 10 is It is necessary to stop the light emitting operation of the portable light emitting device 10.

[0006] In the case of nighttime construction work, even when the directivity of the light emitting element 16 is strong, the light from the light emitting element 16 makes the periphery of the portable light emitting device 10 dim, and the portable light emitting device 10 is usually used. A train watchman watching the operation state of the portable light-emitting device 10 and the approaching state of the train on the side or the back of the vehicle can sufficiently confirm the blinking operation of the portable light-emitting device 10. Therefore, if the portable light emitting device 10 breaks down for some reason and the blinking operation of the light emitting element 16 stops, the abnormality can be found early. Similarly, even when the time allocated to the construction work ends and the construction work is temporarily suspended, it is easy to confirm whether the portable light emitting device 10 is blinking. Very few make mistakes, such as forgetting to erase ten.

However, in the case of daytime construction work, since the area around the portable light emitting device 10 is bright, it is determined whether or not the portable light emitting device 10 is blinking.
It is necessary to go around the front side of 0 and look into the light emitting element 16 from the front. Therefore, when the portable light-emitting device 10 fails due to a failure or the like and stops blinking, it takes more time to detect the abnormality than at night, and the train enters the track under construction. It is dangerous because there is a possibility that the situation will occur. Similarly, when the construction work is temporarily suspended, it is considered that the portable light emitting device 10 may be forgotten to be turned off, and the driver who confirms the blinking of the portable light emitting device 10 even though the construction is suspended. However, there is also a problem that a situation may occur in which the train is unintentionally stopped.

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a portable light emitting device capable of easily recognizing a blinking state even in the daytime.

[0009]

According to a first aspect of the present invention, there is provided an image forming apparatus, wherein the front side is disposed in a transparent body, and the light emitting angle is set within a predetermined angle range. A light emitting unit having a main light emitting element facing the front side of
In a portable light emitting device having a support leg for supporting the cylindrical body and a battery fixed to the support leg, a sounding means that sounds only when the main light emitting element emits light is provided inside the cylindrical body or the support leg. Is provided. Further, the invention according to claim 2 is a light-emitting unit having a main light-emitting element which is disposed in a cylinder whose front side is formed transparent and whose light emission angle is set within a predetermined angle range and faces the front side of the cylinder. And a supporting leg supporting the cylindrical body, and a portable light emitting device having a battery fixed to the supporting leg,
At least a portion of the back side of the cylindrical body is formed transparent,
The light emitting unit is characterized in that it has a sub-light emitting element facing the transparent portion on the back side of the cylindrical body and emitting light only when the main light emitting element emits light. Further, a sounding means for sounding only when the main light emitting element emits light may be provided inside the cylindrical body or the support leg.

[0010] According to these, without going around the front of the portable light-emitting device and checking the light-emitting state of the main light-emitting element each time, the light emitted from the sub-light-emitting element provided on the back side or the sound emitted from the sounding means can be used. The light emitting state of the main light emitting element can be recognized, and it is possible to reliably detect that the main light emitting element has failed and has stopped blinking even during daytime when light from the main light emitting element is difficult to see.

The ringing means or the sub-light emitting element is connected in series with the main light emitting element, and a switching element is connected in parallel with the ringing means and the sub light emitting element. When the switching element is turned on and the driving current flowing through the main light emitting element is bypassed to the switching element side, the switching element is deactivated and the switching element is turned off and the driving current flowing through the main light emitting element is turned off by the sounding means. When the current is not supplied to the main light-emitting element, the sub-light-emitting element and the sounding means are also in a non-operation state. There is no worst case where the ringing means is operating and the main light emitting element is inactive.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of a portable light emitting device according to the present invention will be described below in detail with reference to the accompanying drawings. The same components as those of the portable light emitting device 10 described in the conventional example are denoted by the same reference numerals, and detailed description thereof will be omitted.
First, the configuration of the portable light emitting device 30 will be described with reference to FIGS. Since the overall configuration as viewed from the front is the same as that of the conventional portable light emitting device 10, FIG. 3 used in the description of the conventional example is also used.

The light emitting section 12 is disposed in a cylindrical body 14 having a transparent front side. The light-emitting device has a main light-emitting element (same as the light-emitting element of the conventional example) 16 whose light-emitting angle is set to a predetermined narrow angle and faces the front side of the cylinder 14. The main light-emitting elements 16 are light-emitting diodes having strong directivity, and are arranged in a matrix on the indicator light board 18 in the same direction. A control board 20 for controlling the blinking of the light emitting section 12 is arranged on the back side of the indicator light board 18 in the cylindrical body 14. The support leg 22 supports the cylindrical body 14 attached to the upper end. A battery 24 for supplying power to the light emitting unit 12 is fixed to the support leg 22. Further, the battery 24 is provided with a switch 26 for turning on / off the power (current) to the light emitting unit 12 disposed in the cylinder 14.

Next, a characteristic configuration of the present embodiment will be described. The portable light emitting device 30 of the present embodiment has the following configuration in addition to the configuration of the conventional example described above. At least a part 32 on the back side of the cylindrical body 14 is formed transparent. Hereinafter, this transparent part is also referred to as a transparent part 32. The light emitting section 12 further includes the sub light emitting element 3
4 (five in this embodiment). It is preferable that the sub light emitting element 34 is not a light emitting diode having strong directivity as used in the main light emitting element 16 but a light emitting diode having a characteristic that light is spread as widely as possible. The sub-light emitting element 34 is arranged so as to face the transparent portion 32 on the back side of the cylindrical body 14, and is driven to emit light only when the main light-emitting element 16 is emitting light.

The inside of the cylinder 14 or the support leg 22
(In the present embodiment, inside the cylindrical body 14),
As in the case of 4, a sounding means (for example, a buzzer) 36 that sounds only when the main light emitting element 16 emits light is provided as one example. Each of these sub-light emitting elements 34 and sounding means 36
Means the auxiliary board 3 provided on the back side of the indicator light board 18.
8 is formed. In the present embodiment, the funnel-shaped reflection plate 40 is arranged around the sub light emitting element 34 so that the light of the sub light emitting element 34 can be efficiently emitted to the transparent portion 32 side.

The electrical connection between the sub-light emitting element 34 and the ringing means 36 to the main light-emitting element 16 will be described in more detail with reference to FIG. The main light emitting elements 16 arranged in a matrix form include a plurality of main light emitting elements 16 included in each column.
Are connected in series with each other, and each row is connected in parallel as a whole. Each row is provided with a current limiting resistor 42. A positive voltage is applied from one end (upper end in FIG. 2) of each row to the battery 24, and the other end (lower end in FIG. 2) is a light emission signal generation circuit formed in the control board 20. Main switching element T that performs on / off operation in response to a light emission signal from
7 is driven. The circuit configuration related to the main light emitting element 16 so far is the same as the circuit configuration of the conventional example.

The plurality of sub-light emitting elements 34 and the sounding means 36, which are characteristic parts of the present invention, are connected one by one in series in different rows of the main light-emitting elements 16, respectively. Further, all the sub light emitting elements 34 and the sounding means 36
, Sub-switching elements T1 to T6 are connected in parallel. An auxiliary circuit 46 for turning on / off each of the sub-switching elements T1 to T6 is incorporated in the auxiliary substrate 38.

An outline of a circuit configuration of an embodiment of the auxiliary circuit 46 will be described. The power supply for operating the auxiliary circuit 46 is supplied by the battery 24 supplied to the main light emitting element 16.
Is generated on the basis of the drive current from the sub-circuit, and is supplied to the circuit elements in the auxiliary board. Specifically, ZD1, C1, R9, D
In step 2, an operating power source is generated. First, the first auxiliary circuit 48 for driving the sub light emitting element 34 will be described. R
At 1, R2 and R3, a flicker of a pulse-like current (500 pulses / sec as an example) supplied to the main light emitting element 16 is detected. The detected flicker is input as a clock signal to a clock terminal of a decimal counter 52 via a buffer 50 having a hysteresis characteristic. The counter 52 counts the number of detected flickers. For example, when the count value is 0, 1, 5, or 6, the sub switching element T connected in parallel to the sub light emitting element 34 is used.
1 to T5 are turned off, and the sub-switching elements T1 to T5 are turned off.
When T5 is in the ON state, the drive current flowing to the main light emitting element 16 which has been bypassed flows to the sub light emitting element 34,
The sub light emitting element 34 is in a light emitting state. As a result, only when the driving current flows through the main light emitting element 16, in other words, only when the main light emitting element 16 is emitting light, the driving current also flows through the sub light emitting element 34 to emit light. You do it.

Next, the second auxiliary circuit 54 for driving the sounding means 36 will be described. The sub-switching element T6 is driven by a driving signal of a predetermined frequency input from the oscillation circuit 56. The oscillation circuit 56 is set so as to oscillate only when the value of the counter 52 is 6, for example. The circuit 58 is a battery 2
4, the oscillating circuit is operated only for about 0.5 second after the power is turned on, so that the sounding means 36 sounds.
This is to confirm that the power is turned on. When the count value of the counter 52 is 6, similarly to the case of the sub-light-emitting element 34, the current that is normally bypassed by the sub-switching element T6 that is in the on-state is turned off. Flows to the sounding means 36, and the sounding means 36
Sounds. That is, the sounding means 36 sounds only when the main light emitting element 16 is emitting light.

With the above circuit configuration, while the counter 52 counts flicker 10 times, the count value is
When the count value is 0, 1, 5, the sub-light-emitting element 34 emits light together with the main light-emitting element 16;
6 also sounds in conjunction with the light emission of the main light emitting element 16 together with the light emission of the sub light emitting element 34. In the case of this circuit configuration, when current is no longer supplied to the main light emitting element 16,
Since the sub-light emitting element 34 and the sounding means 36 are also in the inactive state, there is absolutely no malfunction such that the sub-light emitting element 34 and the sounding means 36 are in operation and the main light emitting element 16 is in the inactive state. Therefore, when the construction worker operates the sub-light emitting element 34 and the sounding means 36, the main light emitting element 1
6 recognizes that the main light emitting element 1 is in operation.
6 is not working due to a failure, and the worst situation is that the train will enter the construction track and cause an accident. Even if the auxiliary light emitting element 34 and the sounding means 36 are added, the power for these circuit elements is generated from the current flowing through the main light emitting element 16 and the main light emitting element 34 and the sounding means 36 are operated only when the main light emitting element operates. Since the light emitting element 16 is interposed in series, the power consumption is almost the same as the conventional power consumption, and the luminance of the main light emitting element 16 is not so large even when the sub light emitting element 34 and the sounding means 36 operate. It is not expected to change.

In the portable light emitting device 30 of the above-described embodiment, both the auxiliary light emitting element 34 and the sounding means 36 are provided. However, for example, only the auxiliary light emitting element 34 may be provided, or only the sounding means 36 may be provided. But the good thing is, of course. Further, the installation position of the sub-light emitting element 34 and the sounding means 36 may be outside the cylindrical body 14 as long as waterproof measures can be taken. Also, the portable light emitting device of the above-described embodiment has been described using an example used for railway construction, but the portable light emitting device of the present application can also be used for road construction.

[0022]

According to the portable light emitting device of the present invention,
Recognizing the light emitting state of the main light emitting element by the light of the sub light emitting element provided on the back side and the sound emitted from the sounding means without having to check the light emitting state of the main light emitting element each time going around the front of the portable light emitting device It is possible to reliably detect that the main light emitting element has failed and has stopped blinking even during daytime when the light of the main light emitting element is difficult to see. Therefore, when the construction work is temporarily suspended, forgetting to turn off the main light emitting element can be effectively prevented, and a situation in which the train is unintentionally stopped can be avoided. In addition, since the sub-light emitting element and the sounding means operate only when the main light-emitting element emits light, if the main light-emitting element does not blink due to a failure or the like, be sure to
The sub-light emitting element and the sounding means do not perform the blinking operation or the sounding operation. Therefore, although the sub-light emitting element and the sounding means are operating,
The worst situation in which the main light emitting element is not operating can be reliably prevented, and the safety of the construction worker can be reliably prevented.

[Brief description of the drawings]

FIGS. 1A and 1B are explanatory views for explaining a structure inside a cylindrical body of a portable light emitting device according to an embodiment of the present invention, wherein FIG. 1A is a front view, FIG. 1B is a rear view, and FIG. ) Is a side view.

FIG. 2 is a circuit diagram for describing an electrical connection structure of a main light emitting element, a sub light emitting element, and a sounding means.

FIG. 3 is a front view for explaining the overall structure of the portable light emitting device.

FIG. 4 is an explanatory view for explaining a structure inside a cylindrical body of an example of a conventional portable light emitting device, (a) is a front view thereof,
(B) is a rear view, and (c) is a side view. It is sectional drawing for demonstrating the structure of the flat winding which comprises an induction coil.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 12 Light-emitting part 14 Cylindrical body 16 Main light-emitting element 22 Support leg 24 Battery 30 Portable light-emitting device 36 Sounding means

 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Masaaki Yanagisawa 168, Muramae, Minami-Nagaike, Nagano-shi, Nagano F-term in Nichinada Electric Co., Ltd. (reference) 5H180 GG03 GG07 GG09 HH14 JJ23

Claims (4)

[Claims] A light-emitting portion having a main light-emitting element which is disposed in a transparent body having a front side formed therein, has a light emission angle set within a predetermined angle range, and has a main light-emitting element facing the front side of the cylindrical body; In a portable light emitting device having a supporting leg for supporting the main body and a battery fixed to the supporting leg, a sounding means for sounding only when the main light emitting element emits light is provided in the cylindrical body or the supporting leg. A portable light-emitting device, characterized in that: 2. A light-emitting portion having a main light-emitting element which is disposed in a transparent body having a front side formed therein, has a light-emitting angle set within a predetermined angle range, and has a main light-emitting element facing the front side of the cylindrical body. In a portable light-emitting device having a supporting leg for supporting the main body and a battery fixed to the supporting leg, at least a part of a rear side of the cylindrical body is formed to be transparent, and the light emitting section is formed on a rear side of the cylindrical body. A portable light emitting device having a sub-light-emitting element which faces only the transparent portion of the light-emitting element and emits light only when the main light-emitting element emits light. 3. The inside of the cylindrical body or the support leg,
3. The portable light emitting device according to claim 2, further comprising a sounding unit that sounds only when the main light emitting element emits light. 4. The sounding means or the auxiliary light emitting element,
A switching element is connected in parallel to the ringing means and the sub-light emitting element while being connected in series with the main light emitting element, and the ringing means and the sub light emitting element flow into the main light emitting element when the switching element is turned on. The driving current is bypassed to the switching element side to be in an inactive state, the switching element is turned off, and the driving current flowing to the main light emitting element flows to the ringing means and the sub light emitting element to be in an operating state. Claim 1, 2 or 3
A portable light emitting device as described.