JP2000215701A - Working lamp - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a working lamp using a bulb of vehicular headlight with a burnt out low beam filament and a usable high beam filament. SOLUTION: This working lamp 1 has a reflector 3 to reflect the light of a bulb which is a headlight bulb 5 having a filament 21 for high beam and a filament 20 for low beam, and a lens 6 placed in front of the reflector 3. With this working lamp, a headlight bulb having a burnt out low beam filament and a usable high beam filament can be used as a working lamp, therefore reduction of refuse and efficient utilization of resources can be achieved.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bulb (light bulb) for a headlight of an automobile, and more particularly to a working lamp using a bulb that can use a filament for a high beam even if a filament for a low beam is cut. is there.

[0002]

2. Description of the Related Art Generally, a headlight of an automobile always includes a switch for switching between a high beam and a low beam. As shown in FIG. 5, the high beam is commonly referred to as a distant place, but is used to illuminate a farther place brightly, and it is necessary that an obstacle 100 m ahead can be recognized.
However, when the oncoming vehicle comes, the opponent is blinded (dazzled), so it is necessary to switch the brightness and light distribution to the low beam side. In the low beam, it is necessary that an obstacle 40 m ahead can be confirmed. In a two-lamp headlight, the bulb has a high beam and a low beam filament. When the switch is switched to the high beam side, the filament for the high beam of the bulb is turned on, and when the switch is switched to the low beam side, the filament for the low beam of the bulb is turned on.

FIG. 6 is a partial side sectional view showing a structure of a headlight of a bulb exchange type. The headlight 51 has a metal reflecting mirror 52, and a bulb 53 is mounted in a central hole of the reflecting mirror 52. The bulb 53, for example, a halogen lamp, includes a glass part 55 and a socket part 56. Two filaments, a low beam filament 57 and a high beam filament 58, are enclosed in the glass portion 55, and a bulb exchange ring 59 and three terminals 60 for common, low beam, and high beam are enclosed in the socket portion 56. Is provided. The front surface of the reflecting mirror 52 is covered with a lens 61, and a high beam filament 58 is positioned on the optical axis 62 of the lens 61.

[0004]

By the way, in the headlight 51 of an automobile as described above, when an oncoming vehicle comes or a preceding vehicle is present, the changeover switch is switched to the low beam side, and the common use of the valve 53 and the low beam For 2
One of the terminals 60 must be connected to a power cord (not shown) to turn on the low-beam filament 57. However, under the road conditions in Japan including the expressway, the vehicle cannot travel without a low-beam. For this reason, when the bulb is cut, most of the filament 53 is for the low beam, and the filament 53 for the high beam is still in a fully usable state. The fact is that they are replacing them with new valves.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a working lamp using a bulb for a headlight of an automobile in which a filament for a low beam is cut and a filament for a high beam can be used. .

[0006]

SUMMARY OF THE INVENTION A working light according to the present invention comprises:
In a working lamp having a reflector for reflecting light from a bulb and a lens provided in front of the reflector, the bulb is a headlight bulb having a filament for a high beam and a filament for a low beam. It is characterized by the following.

In the working lamp according to the present invention, when the high-beam filament or the low-beam filament of the headlight bulb is turned on, the direct light and the light reflected by the reflector are condensed by the lens and illuminated forward. .

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a working light according to the present invention will be described below with reference to the drawings. FIG. 1 is an external view of a working light according to the present invention. A rotating parabolic reflector 3 is accommodated in, for example, a hemispherical housing 2 of the working light 1, and a headlight bulb, for example, a halogen lamp 5 is mounted in a central hole of the reflector 3. . A lens 6 is arranged on the opening side of the reflection plate 3, and the lens 6 is attached to the housing 2 by a frame 7 screwed to the housing 2. A connector 10 for connecting to a terminal 26 of the halogen lamp 5 to be described later protrudes from a rear portion of the housing 2, and a work lamp 1 is attached to a support such as a roof rail, a steel frame, or a tripod at a lower portion of the housing 2. Mounting portion 11 is protruded downward. An object of the present invention is to provide a working lamp 1 which can use a bulb, for example, a halogen lamp 5 in a state where a filament for a low beam is cut and a filament for a high beam can be used.

The mounting portion 11 of the working light 1 is, for example, prismatic.
A screw hole 11a is screwed so as to penetrate the square groove in the left-right direction.
The screw 12 is adapted to be screwed into. The mounting portion 11 of the work light 1 includes a roof rail mounting bracket 14, a magnet plate 1
5. Can be mounted on a support such as a tripod mounting adapter 16. The support such as the roof rail mounting bracket 14 will be described later in detail.

FIG. 2 is a partial sectional side view of the working light, and FIG.
It is a side view of four types of halogen lamps. As shown in FIGS. 2 and 3, the halogen lamp 5 includes a glass part 18 and a socket part 19. In the glass part 18, a low beam filament 20 and a high beam filament 2 are provided.
2 are enclosed in the socket 1
9, a valve exchange ring 25 and a common terminal 26a;
Terminal 26b for low beam, terminal 26c for high beam
Are provided. Optical axis 3 of lens 6
2, a filament 21 for a high beam is located. The three terminals 26 are connected to the connector section 10, the common terminal 26a is connected to the cord 30, and the terminals 26b and 26c are connected to the cord 31 via a switch 28 which is a changeover switch. The switch 28 can be operated to a power off position, a connection position between the terminal 26b and the cord 31, or a connection position between the terminal 26c and the cord 31. The other ends of the cords 30 and 31 are connected to a cigarette lighter socket of an automobile, a battery, and the like.

Next, a support such as the roof rail mounting bracket 14 will be described. As shown in FIG. 1, the roof rail mounting bracket 14 includes a U-shaped bracket 33 in a side view, and a bracket 33.
And a cushion 34 attached to the inside of the vehicle so as not to be damaged when a roof rail (not shown) is sandwiched. On one surface of the bracket 33, a prism 35 for projecting into a square hole of the mounting portion 11 of the work lamp 1 is protruded, and the screw 12 can be inserted into a hole 35a formed through the prism 35 in the left-right direction. Has become. A thumbscrew 36 is screwed into the opening side of the U-shaped bracket 33,
By tightening the thumb screw 36, the roof rail mounting bracket 14 can be fixed to a roof rail (not shown).

The prism 35 of the roof rail mounting bracket 14 and the square groove of the mounting portion 11 of the work light 1 are fitted, the tip of the screw 12 is screwed into one screw hole 11a, the hole 35a is inserted, and the other is inserted. The work light 1 is fixed to the roof rail mounting bracket 14 by being screwed into the screw hole 11a. And fitting 3
In a state where the roof rail is sandwiched by 3, the thumb rail screw 36 is tightened to fix the roof rail mounting bracket 14 to a roof rail (not shown), and the work light 1 can be mounted to the roof rail.

The magnet plate 15 includes a mounting portion 37 and a plate-like magnet 38. The mounting portion 37 has a prism 39 for fitting into a square hole of the mounting portion 11 of the work lamp 1. The screw 1 is inserted into the hole 39a penetrating in the left-right direction.
2 can be inserted. Therefore, the magnet plate 15
And the square groove of the mounting portion 11 of the work light 1
The screw 12 is screwed into the screw hole 11a, and the magnet plate 1
The work light 1 is fixed to 5. Then, in this state, the magnet plate 15 is magnetically attached to an iron plate member (not shown), and the work lamp 1 can be attached to the iron plate member.

The tripod mounting adapter 16 comprises a prism 41 for fitting into a square hole of the mounting portion 11 of the work light 1 and a screw portion 42 for screwing into a screw hole of a pedestal (not shown). The screw 12 can be inserted through a hole 41 a penetrating in the left-right direction of the prism portion 41. Therefore, the screw part 42 of the tripod mounting adapter 16 is screwed into the screw hole of the tripod base, and the tripod mounting adapter 16 is fixed to the tripod base. Then, in this state, the prism 41 of the tripod mounting adapter 16 and the square groove of the mounting part 11 of the work light 1 are fitted,
The work light 1 can be attached to the pedestal of the tripod via the tripod attachment adapter 16 by screwing the screw 12 into the screw hole 11a.

As shown in FIG. 2, when the used halogen lamp 5 is mounted on the work lamp 1, the high-beam filament 21 is normally not cut and can be used. When the terminal is operated to the position where the terminal 26c and the cord 31 are connected, the filament 21 for the high beam is turned on, the light is condensed forward through the reflector 3 and the lens 6, and the desired place is brightly illuminated to perform various operations. It can be performed.

If the low-beam filament 20 is not cut and is usable, the switch 28 is operated to the position where the low-beam terminal 26b and the cord 31 are connected, and the low-beam filament 20 is turned on and the desired position is turned on. Various operations can be performed by brightly illuminating. At this time, since the low-beam filament 20 is located above the optical axis 32 of the lens 6, the irradiation light thereof is directed downward.

Accordingly, the halogen lamp 5 in which the filament for the low beam has been cut and the filament for the high beam can be used can be used as a working lamp, so that waste can be reduced and resources can be effectively used.

Further, the halogen lamp 5 in which both the low beam filament and the high beam filament can be used can be freely switched so that one of the filaments is turned on by operating the switch 28, so that the halogen lamp 5 can be used more effectively as a working lamp. it can.

Furthermore, even if the automobile does not have a pocket battery, there is no problem with work lighting if the used halogen lamp 5 and the work lamp 1 are provided.

Next, a working lamp according to a second embodiment will be described. FIG. 4 is a partial sectional side view of the working light. The working light 45 has a cylindrical housing 47 with one side opened, and a reflecting plate 48 having a cylindrical shape and a paraboloid of revolution is housed in the housing 47. A lens 50 is fitted to one side of a cylindrical frame 49 having both sides opened, and the other is a housing 4.
7 is screwed to the opening side. Other configurations are the same as those of the first embodiment.

Therefore, the light from the high-beam filament 21 of the halogen lamp 5 is also reflected by the cylindrical portion of the reflecting plate 48 and condensed well through the lens 50 for irradiation. On the other hand, the low beam filament 20
Is also reflected by the cylindrical portion of the reflection plate 48 and is well condensed and radiated forward through the lens 50. However, the low-beam filament 20 deviates from the optical axis of the lens 50, for example, below the optical axis. , The light is also reflected by the cylindrical portion of the reflecting plate 48 and directed slightly downward.

In the above embodiment, the codes 30,
31 is connected to a cigarette lighter socket or a battery of a car, but is not limited to this.
It can also be used as home lighting by connecting to a switching power supply that switches from 00V to 12V DC.

Although an H4 type halogen lamp is used as the headlight bulb, the invention is not limited to this, and it is a matter of course that other types of halogen lamps and bulbs may be used.

Although the connector 28 is provided with the switch 28, the switch may be switched to a power-off position or a connection position between the high beam terminal 26c and the cord 31.

Further, although the connector section 10 is provided, the present invention is not limited to this.
The cords 30 and 31 may be directly connected to 6b and 26c.

[0026]

According to the present invention, a headlight bulb in which a filament for a low beam is cut and a filament for a high beam can be used can be used as a working light, so that waste can be reduced and resources can be effectively used. It can be used.

In a headlight bulb in which both the low beam filament and the high beam filament are still usable, one of the high beam filament and the low beam filament of the headlight bulb can be turned on by a changeover switch. Thus, the headlight bulb can be used more effectively.

Since the power is taken from the cigarette lighter socket or the battery of the car, the power can be easily taken from the car at any time, and there is no need to prepare a special power supply.

[Brief description of the drawings]

FIG. 1 is an external view of a working light according to the present invention.

FIG. 2 is a partial cross-sectional side view of the working light according to the present invention.

FIG. 3 is a side view of the halogen lamp.

FIG. 4 is a partial side sectional view of a working light according to a second embodiment.

FIG. 5 is an explanatory diagram of a high beam and a low beam.

FIG. 6 is a partial side sectional view showing a structure of a headlight of a bulb exchange type.

[Explanation of symbols]

 1,45 work light 2,47 case 3,48 reflector 5 halogen lamp (bulb for headlight) 6,50 lens 7,49 frame 10 connector part 11 attachment part 12 screw 18 glass part 19 socket part 20 for low beam Filament 21 filament for high beam 28 switch 30,31 code

Claims (4)

[Claims] 1. A working lamp having a reflector for reflecting light from a bulb and a lens provided in front of the reflector, wherein the bulb has a filament for a high beam and a filament for a low beam. A work light characterized by being a light bulb. 2. The working lamp according to claim 1, wherein only the high beam filament of the headlight bulb is turned on. 3. The working lamp according to claim 1, further comprising a changeover switch for turning on one of a high beam filament and a low beam filament of the headlight bulb. 4. The work light according to claim 1, wherein power is taken from a cigarette lighter socket or a battery of the vehicle.