JP2717224B2 - Life-saving light-emitting device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a life-saving light-emitting device which is mainly provided as a fixture in a life jacket or life-boat for marine accidents, and which emits a flash for notifying a searcher of a position in the event of a distress.

[0002]

2. Description of the Related Art Conventionally, as shown in FIG. 4, a light-emitting device of this type has been developed in which a light-transmitting portion 2 is provided at the top of a casing 1 and a rod-shaped light-emitting tube 3 is installed in the light-transmitting portion. An electric current is intermittently supplied by an electronic circuit and a battery provided in the casing 1 so that a flash light is emitted from the arc tube 3.

The arc tube 3 emits light by applying a high voltage between the electrodes at both ends to discharge light. A voltage charged in a capacitor by a booster provided in an electronic circuit is used as the arc tube. 3 is applied to both electrodes, and another high voltage is instantaneously applied to the trigger electrode of the arc tube 3 so that a strong flash is emitted.

[0004]

In the conventional life-saving light-emitting device as described above, since the arc tube is disposed horizontally in the light-transmitting portion, the axial directions at both ends of the arc tube are blocked by the electrodes, resulting in shadows. In other words, the farther the distance, the larger the shadow portion and the wider the area where light cannot reach.

The present invention has been made in view of such conventional problems, and has as its object to provide a life-saving light-emitting device that emits light in the entire 360 ° range in the horizontal direction and in all directions of the upper hemisphere.

[0006]

SUMMARY OF THE INVENTION The features of the present invention for solving the conventional problems as described above and achieving the intended purpose are as follows.
A casing having a light-transmitting portion at the top;
An elongate arc tube is provided in the light-transmitting portion,
An electronic circuit that applies current intermittently to the arc tube during
Life-saving light-emitting device containing road and battery
The light-transmitting portion is formed of a transparent material and has a top portion.
It has a hollow hemispherical part and water
It is constituted by a lid covered tightly, and the lower end of the lid
A partition wall that separates the inside of the casing
When the light reflecting plate is installed upward on the upper surface of the partition wall,
In addition, the arc tube is provided at each end of an elongated hollow glass tube.
The discharge electrode is sealed, and one end of the arc tube is
In front of the conductor using the hard wire material raised from the firing plate,
Connect and support the electrode at one end of the glass tube
The other end of the arc tube near the surface of the partition wall.
By connecting the electrode at the other end of the glass tube to another conductor
The arc tube rises obliquely above the reflector.
Battery installed inside the casing body
A high voltage is applied to the electrodes of the arc tube by the
This is because flash is generated instantly .

[0007]

In the life-saving light-emitting device according to the present invention, the arc tube is arranged obliquely standing up, so that it is 360 ° in the horizontal direction.
There is no other object than the conductive wire that blocks light in the range, and this can be made sufficiently thinner than the arc tube, so that light is emitted in all horizontal directions.

On the other hand, the direction of extension of the upper end side of the arc tube becomes a shadow due to the electrodes, but the light reflected from the reflector reaches that direction, and the light is emitted in all directions of the hemisphere. Becomes

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, an embodiment of the present invention will be described with reference to FIGS.

In FIG. 1, reference numeral 11a denotes a bottomed cylindrical casing main body, and 11b denotes a lid which is covered with an opening of the casing main body 11a in a watertight manner. The main body 11a and the lid 11b constitute a casing. doing.

The lid 11b is formed of a transparent material, a hollow hemispherical portion 12 is formed on the top, a male screw 13 is formed on the outer periphery of the lower end, and a flange 14 is integrally formed on the upper side. The male screw 13 is screwed into the female screw on the inner peripheral surface of the opening of the casing main body 11a, and a water-tight O-ring 15 is interposed between the flange 14 and the upper surface of the main body to maintain water tightness.

A partition plate 16 is fitted into the lower end of the lid 11b, and a reflector 17 is fixed on the partition plate 16. An arc tube 17 is provided above the reflection plate 17 so as to be supported by the partition plate 16.

The arc tube 18 has a narrow hollow glass tube in which discharge electrodes 18a and 18c and a trigger electrode 18b are sealed at both ends. A capacitor is charged by a booster provided in an electronic circuit, and a voltage is applied to both discharge electrodes. 18a, 18c
And another high voltage is instantaneously applied to the trigger electrode 18b so that a strong flash is emitted.

Then, a hard wire is used for one of the conductive wires 19 for supplying a current to the arc tube 18, this is used as a gate, and it is raised on the partition plate 16, and one of the electrodes 18 a is soldered thereto. The other electrodes 18 b and 18 c are soldered to another conductor 20 near the surface of the partition plate 16, thereby fixing the arc tube 18 in a state of being raised obliquely upward at an angle of approximately 45 °.

An electronic circuit box 21 is housed in the casing body 11a, and a switch 22 is provided above the box 21. The switch 22 is provided between the pair of contact spring pieces 22a and 22b as shown in FIG.
3 is inserted. The insulating plate 23 is formed integrally with the tip of an operating rod 24 that projects the body of the casing body 11a outward through the peripheral wall. In the figure, 25 is a packing for stopping water.

Then, by pulling the pull cord 26 having one end fixed to the operating rod 24 and pulling out the insulating plate 23 at the tip of the operating rod 24, the two contact spring pieces 22a and 22b are brought into elastic contact with each other, and the switch 22 is turned on. It is turned on.

In the figure, reference numeral 27 denotes a battery for power supply, 28 denotes a capacitor, and the switch 21
When N is applied, the current charged in the capacitor 28 is intermittently discharged by using the battery 27 as a power source, boosted and supplied to the arc tube 17, and intermittently emits flash.

[0018]

As described above, in the life-saving light-emitting device of the present invention, the reflector is placed at the bottom in the light-transmitting portion of the casing, and the light-emitting tube is set up obliquely above it so that the light-emitting tube is installed in the horizontal direction. The only thing that blocks light is a thin conducting wire, and light will be emitted in all directions.
In the upward direction, not only the direct light from the firing tube is radiated, but also the light reflected on the reflector is radiated, so the light reflected on the reflector also extends in the central axis extension direction of the arc tube where the direct light is blocked. Is emitted, light is emitted in all directions of the hemisphere, and the blind spot where light is blocked completely disappears.

[Brief description of the drawings]

FIG. 1 is a vertical sectional side view showing an embodiment of the present invention.

FIG. 2 is a partial longitudinal sectional front view of the same.

FIG. 3 is a sectional view taken along line AA in FIG. 1;

FIG. 4 is a partially cutaway side view of a conventional example.

[Explanation of symbols]

 11a Casing body 11b Lid 12 Hemispherical part 13 Male screw 14 Flange 15 O-ring 16 Partition plate 17 Reflector 18 Emitting tube 18a, 18c Discharge electrode 18b Trigger electrode 19, 20 Conductor 21 Electronic circuit box 22 Switch 22a, 22b Contact spring Piece 23 insulating plate 24 operation stick 25 packing 26 drawstring 27 battery 28 condenser

Claims (1)

(57) [Claims] 1. An electronic circuit comprising: a casing having a light-transmitting portion on a top portion; an elongated light-emitting tube provided in the light-transmitting portion of the casing; and an intermittent current supply to the light-emitting tube in the casing. In the life-saving light-emitting device including a battery, the light-transmitting portion is formed of a transparent material, has a hollow hemispherical portion at the top, and has a lid that is watertightly covered with respect to the casing body. A partition wall is provided at the lower end of the lid to partition the inside of the casing body below the lid, and a light reflecting plate is installed upward on the upper surface of the partition wall, and the luminous tube is an elongated hollow glass tube. Electrodes for discharge are sealed at both ends, respectively, and one end of the arc tube is connected to a conductive wire using a hard wire material raised from the reflection plate, and the electrode at one end of the glass tube is connected and supported. The other end of the arc tube is connected near the surface of the partition wall to the other end of the glass tube with another conductive wire, so that the arc tube is set up so as to rise obliquely above the reflector. A flashlight is generated by instantaneously applying a high voltage to the electrode of the arc tube by a battery and an electronic circuit provided in the casing main body, thereby generating a flash.