JPH1186601A - Led sign lamp - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a sign lamp which satisfies all three factors of visibility, long battery life, and compact size with light weight by utilizing an LED(light- emitting diode) light source with high intensity and long life. SOLUTION: A cylindrical body 1 of the LED sign lamp is formed with a translucent cylindrical part 18 and a grip part 19, wherein inside the translucent cylindrical part 18 a transparent light-guide rod 12 is disposed. At the end surface of the side of the grip part 19 is disposed an LED 16 in the coaxial direction of the light-guide rod 12 toward the tip of the translucent cylindrical part 18, and a flash circuit 9 with the battery stored inside the grip part 19 as the power source which switches the LED 16 on and off with pulses is provided.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a signal light for use in traffic control at night, instructions for road construction sites, parking lots, etc., and guidance. The present invention relates to a light-weight LED signaling light, and provides a small, lightweight, long-life signaling light by using a single light source and performing pulse lighting of a blinking circuit.

[0002]

2. Description of the Related Art As shown in FIGS. 5 and 6, a conventional signaling lamp has a cylindrical grip portion a and a cylindrical light transmitting tube portion b connected by a connecting portion c. Light emitting diode in part b
A plurality of nodes j (hereinafter, referred to as LEDs) are arranged in the circumferential direction.

[0003] A grip portion a has a battery accommodating portion e for accommodating two single batteries therein and an ON, OF projectingly formed on an upper surface.
And a push switch portion f composed of two pressing portions F.

[0004] A fishing line hole k is formed in the bottom of the gripping portion a, and a fishing line h is passed through the hole, and is fixed by a fastener i.

Reference numeral 1 denotes a light source arrangement board, which is formed by a blinking circuit section m, a mounting plate section d, and a socket section o, and is substantially perpendicular to the axial direction at substantially equal intervals in the axial direction of the light transmitting cylinder section b. The LEDs j are arranged in three different directions.

The connecting portion c is fixed together with the mounting plate portion d in a state where the grip portion a and the light transmitting cylinder portion b are firmly sandwiched by the packing g.

Reference numeral n denotes an annular holding ring for holding the light source disposing substrate l, which is provided with a ring having substantially the same shape as the inner peripheral surface of the light-transmitting cylindrical portion b.

The socket part o is provided with a socket spring p
And the battery terminal is pressed against the socket spring p when the battery is housed. From the socket spring p, the lead terminal q of the power supply is soldered to the blinking circuit.

[0009]

As described above, the conventional LE
The signal light using D has a cylindrical grip portion and a cylindrical light-transmitting tube portion connected by a connecting portion, and visibility is required unless a plurality of LEDs are arranged in the light-transmitting tube portion in the circumferential direction. Is not good, and the battery life satisfactory to the user cannot be obtained unless two single batteries are used. Therefore, it has been difficult to reduce the size and weight using AA batteries.

As a light source, it is desired to use a light emitting diode (hereinafter referred to as an LED) having a high luminance and a long life. However, since the LEDs have directivity, in order to improve the visibility of the light-transmitting cylinder, a plurality of LEDs must be arranged in a plurality of rows in the circumferential direction in the light-transmitting cylinder, and the number of LEDs increases. As a result, there arises a problem that the power consumption increases and the battery life is significantly reduced.

Therefore, at present, a battery life and visibility that the user satisfies are secured by using a single battery × 2 (3 V) power supply.

However, since a single battery is used, the weight of the battery is about 350 g, which is very heavy, and a heavy burden is imposed on a user who performs guidance work while holding a signaling lamp in his hand.

Therefore, at present, there is a demand from users for a small and lightweight signaling lamp. In order to be small and light, AA batteries must be used.
However, AA batteries have a problem in battery life and cannot be used satisfactorily.

[0014]

SUMMARY OF THE INVENTION In view of the above problems, an object of the present invention is to provide a signal light that satisfies all three factors of visibility, battery life, and small size and light weight. Is intended to provide a battery life satisfactory to the user.

More specifically, in order to reduce the size and slimness, the light transmitting means is illuminated with only one LED for one light guiding means using a light guiding means. Since the effect is used, low power consumption is realized.

Further, even if the AA battery is used, the visibility and the battery life satisfying the user can be realized. Furthermore, the use of AA batteries enables a small and lightweight LED signaling light.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A signaling lamp according to a first embodiment of the present invention shown in FIG. 1 is formed of a cylindrical main body 1 and is divided into a light transmitting cylinder 18 and a grip 19. The grip 19
A grip cover 14 is attached.

A top cap 11 is attached to the tip of the main body 1. The top cap 11 has a circular concave portion 20 formed in the center at the inner side, and the end of the transparent light guide rod 12 included in the light transmitting cylinder 18 is fixed. A prism seal is provided on the inner peripheral surface of the light-transmitting cylindrical portion 18.
Is provided.

The other end of the transparent light guide bar 12 is
It is fixed together with the LED 16 by the LED holder 10. The LED 16 is disposed coaxially with the light guide bar 12 toward the front end of the light transmitting cylinder.

The light guide bar 12 is formed with a V-shaped groove group 23 in which a plurality of grooves are partially cut all around.
The light of the LED 16 enters from the end face of the light guide rod 12 and
In the optical path as shown in the figure, from the surface of the rod, it proceeds while totally reflecting beyond the critical angle, and is refracted, reflected and transmitted in the annular V-shaped groove group 23, and emits light on the circumference of the rod to the tip while visually recognizing. Has arrived.

The LED holder 10 is formed of an LED fixing part 21 composed of a small diameter cylindrical part and a light guide rod fixing part 22 composed of a large diameter cylindrical part.

Reference numeral 6 denotes a slide switch. A switch contact case 3 connects the switch terminal 7 and the battery terminal. Reference numeral 4 denotes a battery case holding plate for firmly fixing the battery case 5 so as not to come off. Reference numeral 2 denotes a lid, and after the AA batteries are stored in the battery case 5, the switch contact case 3 and the battery holding plate 4 are firmly pressed and fixed. A fishing cord 15 is attached to the lid 2.

Reference numeral 9 denotes a blinking circuit section, and an LED holder 10 is arranged at the end of the printed circuit board together with the LEDs 16. The battery spring 8 of the blinking circuit 9 is connected to the battery case 5.
With two AA batteries.

As shown in FIG. 3, the blinking circuit 9 has the pulse lighting time T1 in the ON state and the pulse lighting time T2 in the OFF state, and the ON state T1 further blinks by a pulse. T1 shows that the lighting is continued. This configuration reduces the power consumption of the battery when using AA batteries.

Next, a signaling lamp according to a second embodiment of the present invention shown in FIG. 2 will be described. Cylindrical translucent tube part 18 and grip part 1
9 is a signaling lamp formed by the connecting portion 24 connecting the connecting portions 9 to each other.

The internal structure of the signal light is substantially the same as that of the first embodiment. The difference is that a connecting section 24 is provided, the blinking circuit section 9 is stored and fixed in the connecting section 24, and a push switch section 25 is provided in the connecting section 24.

The blinking circuit section 9 includes an LED on a printed circuit board.
16 are arranged. 5 is a battery case,
Contains two AA batteries (3V).

As shown in FIG. 3, the blinking circuit 9 is in the ON state and the pulse lighting time T2 is OFF as shown in FIG.
T1 in the ON state is blinking further by a pulse, and T1 appears to be continuously lit by using the afterimage phenomenon. With this configuration, it is possible to reduce power consumption when using AA batteries.

A top cap 11 is attached to the tip of the light transmitting cylinder 18, and a prism sheet 13 is provided on the inner peripheral surface of the light transmitting cylinder 18. The top cap 11 has a circular concave portion 20 formed in the center at the inner side, and the end of the transparent light guide rod 12 included in the light transmitting cylinder 18 is fixed.

The other end of the light guide bar 12 is an LED
16 together with the LED holder 10. The LED 16 is disposed coaxially with the light guide bar 12 toward the front end of the light transmitting cylinder.

The LED holder 10 is formed of an LED fixing part 21 composed of a small-diameter cylindrical part and a light guide rod fixing part 22 composed of a large-diameter cylindrical part.

The light guide rod 12 is also formed with a V-shaped groove group 23 in which a plurality of grooves are partially cut all around the same as in the first embodiment. The light of the LED enters from the end face of the light guide bar 12 and travels from the surface of the bar in a light path as shown in FIG. 1 with total reflection exceeding the critical angle, and within the annular V-shaped groove group 23. The light is refracted, reflected and transmitted, and reaches the tip direction while allowing the light emission to be visually recognized on the circumference of the rod.

FIG. 4 shows a signal light (FIGS. 1 and 2) of the present invention.
A comparison of the conventional signal light (using two AA batteries and two LEDs with a single battery x 2 using 12 LEDs) and the conventional signal light with one LED, respectively, in terms of battery life It is.

In the conventional signal light, the voltage drop is remarkable after 300 hours, whereas the signal light of the present invention is 300
There is almost no voltage drop over time. In addition, in the conventional signal light, if an AA battery is used, the voltage drop is remarkable, and the lamp is unusable.

The signaling lamp of the present invention can provide a signaling lamp which has good visibility by employing a high-brightness LED and a light guide rod, and which can sufficiently satisfy the battery life even when using AA batteries. Furthermore, the weight was about 350 g before, but 150 g
And became lighter.

Up to now, the light guide rod has been described by one rod.
If a brighter one is required, a plurality of the light guide bars may be used. Also, it has been described that the battery case is provided in the grip portion, but the grip portion may be a battery case.

[0037]

As described above, according to the present invention, only one light guide rod is used for one LED having a long life, high brightness and high directivity, and the light guide rod is used to connect the light transmitting cylinder part of the signaling lamp. By performing pulse lighting, even if an AA battery is used, it is possible to provide a signal light that has a longer battery life, better visibility, a small size, and a light weight of 150 g.

[Brief description of the drawings]

FIG. 1 is a drawing showing a first embodiment of a signaling light of the present invention.

FIG. 2 is a view showing a second embodiment of the signaling lamp of the present invention.

FIG. 3 is a lighting pulse waveform indicating ON / OFF of a blinking circuit.

FIG. 4 shows a voltage drop characteristic with respect to a blinking time indicating a battery life of a signaling lamp.

FIG. 5 is a view showing a conventional signal light.

FIG. 6 is a light source arrangement board fixed inside a conventional signal light.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Main body 2 Lid 3 Switch contact case 4 Battery case holding plate 5 Battery case 6 Slide switch 7 Switch terminal 8 Battery spring 9 Flashing circuit part 10 LED holder 11 Top cap 12 Light guide rod 13 Prism case G 14 Grip cover 15 Fishing string 16 LED 18 Translucent cylinder 19 Grip 20 Depression 21 LED fixing part 22 Light guide rod fixing part 23 V-shaped groove group 24 Connecting part 25 Push switch part

Claims (4)

[Claims] 1. An LED signaling lamp formed by a cylindrical grip portion and a cylindrical light-transmitting tube portion, wherein:
A light guide rod is arranged, and an LED is arranged on the end surface of the light guide rod on the side of the gripping portion in a direction toward the tip of the light transmitting cylinder.
A blinking circuit for blinking by a pulse is provided, and a battery is housed in the grip portion. 2. The light guide bar is a cylindrical transparent bar,
The LED signaling light according to claim 1, wherein a plurality of grooves are partially provided on the entire circumference. 3. The LED signaling light according to claim 1, wherein a plurality of said light guide bars are provided. 4. The LED signaling lamp according to claim 1, wherein a prism sheet is disposed on an inner peripheral surface of the light transmitting cylinder.