JP2005267872A - Light scatter type warning light - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a light scatter type warning light not generating disorder by deposition of snow even in a case of using a light source with little heating value like a light emitting diode or a discharging bulb. <P>SOLUTION: The light scatter type warning light 10 formed by arranging flashing units 30, 40 turning on and off an LED unit formed by arraying a plurality of light emitting diodes and/or a discharge bulb 31 is housed in a translucent globe 20, and a heating sheet 50 is arranged on the inner surface of the globe. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a novel diffuse warning light. More specifically, the present invention relates to a diffused warning light suitable for use in a snowfall area.

  A diffused warning light in which a diffused light source is arranged in a translucent globe is known.

  As a diffused light source of a conventional diffused warning light, a combination of an incandescent bulb and a reflecting mirror has been used. Recently, however, a discharge of an LED unit or a xenon arc tube formed by arranging a plurality of light emitting diodes is used. Flash units that flash and emit bulbs are being used.

  Patent Document 1 uses an LED unit as a diffused light source, Patent Document 2 uses an LED unit and a flash unit as a diffused light source, and Patent Document 3 uses a flash unit as a diffused light source. Each is shown.

JP 2002-373504 A

JP 2002-245804 A JP-A-10-188615

  The light emitting diodes and discharge bulbs used in the LED units and flash units described above have the advantage of high luminous efficiency and power saving, and this point is particularly useful as a diffused light source for in-vehicle diffused warning lights. Is preferred.

  However, good luminous efficiency means less heat generation, which is an obstacle when used in snowy areas.

  Diffuse warning lights are used in emergency vehicles such as police cars and ambulances, construction vehicles, etc., and installed in police stations, emergency hospitals, construction sites, etc., all of which strongly impress their existence. Used for.

  By the way, in a snowfall area, there is a problem of snowfall on the globe. When snow falls on the globe, the light emitted from the diffuse light source through the globe is blocked by the snow, so that the function of warning light cannot be achieved. In particular, even if it is installed in a stationary building, etc., such as a police station, an emergency hospital, a construction site, etc. When used to inform the existence, there is a problem that it is easy to snow, and its function is impaired by the snow.

  In view of the above, an object of the present invention is to prevent a problem due to snowfall from occurring even when a light source with a small amount of heat generation such as a light emitting diode or a discharge bulb is used as a diffused light source.

  In order to solve the above-described problems, the light-diffusing warning light of the present invention has a heating sheet attached to the inner surface of the globe.

  Therefore, in the diffused warning light of the present invention, it is possible to melt snow by heating the heating sheet.

  The light-diffusing warning light of the present invention is a light-diffusing warning light in which an LED unit formed by arranging a plurality of light-emitting diodes and / or a flash unit that blinks and emits a discharge bulb is housed in a translucent glove. The heating sheet is attached to the inner surface of the globe.

  Therefore, in the present invention diffused warning light, by heating the heating sheet, it is possible to increase the temperature of the glove surface and melt snow, and to heat the heating sheet in advance. It is possible to prevent snow accretion itself.

  In the invention described in claim 2, since the heating sheet is formed by attaching a heating wire to a transparent film, the heating sheet is easily attached to an existing glove not provided with a heating sheet. be able to. That is, it is possible for the user to take measures against snow accretion.

  In the invention described in claim 3, since the heating sheet is attached to the inner surface of the globe at a position crossing the emission direction of the LED unit and / or the flash unit, it emits light from the globe. Snow removal is prevented or prevented only in the portion located in the required direction, so that unnecessary power is not required, and such a surface has a simple shape, so that it is easy to attach a heating sheet.

  The best mode for carrying out the diffused warning light of the present invention will be described below with reference to the accompanying drawings.

  The diffused warning light 10 shown in this embodiment is configured by arranging three flash units 30, 30 and 40 in a globe 20.

  The globe 20 is formed by assembling a metal base 21, a plurality of globe elements 22, 22,... And two globe ends 23, 23.

  The metal base 21 is formed by extrusion of metal, for example, aluminum, is formed long in the left-right direction, and two in the left and right, a total of four (only two are shown in FIG. 3) mounting bolts 24, 24,.・ ・ Is supported.

  The globe element 22 is formed by injection molding of a light-transmitting plastic, for example, polycarbonate, and is formed in a substantially elliptical ring shape. The lower surface portion of the globe element 22 is slidably engaged with the upper surface portion of the metal base 21. In the illustrated embodiment, four globe elements 22, 22,. The metal base 21 is engaged. In this way, a plurality of (four in the embodiment) globe elements 22, 22,... Are continuous to form a tube having a substantially elliptical cross-sectional shape.

  The globe end 23 has a substantially elliptical plate shape, and is applied so as to cover both ends of the above-described elliptic cylinder formed by continuously connecting the plurality of globe elements 22, 22.

  The plurality of continuous globe elements 22, 22,... And the globe ends 23, 23 are integrated by the metal base 21 and the four foot long bolts 25, 25,. . That is, the foot of the four long bolts 25, 25,..., Two at the top and two at the bottom, is connected to one glove end 23, glove elements 22, 22,. A nut (not shown) is fastened to the other ends of the legs of the long bolts 25, 25,..., Thereby forming an oval cylindrical transparent container with both ends closed, that is, the globe 20. The

  In this embodiment, there are two directional flash units 30 that combine a discharge bulb 31 and a reflecting mirror 32, an omnidirectional flash unit 40 that combines a discharge bulb 41 and a cylindrical inner lens 42. A total of three flash units 30, 30, 40 are arranged in the globe 20. The discharge bulbs 31 and 41 are appropriately flashed by a flashing circuit (not shown) or the like.

  In the diffused warning light 10 according to this embodiment, heating sheets 50, 50,... Are attached to the front inner surfaces and rear inner surfaces of the globe elements 22, 22,.

  The heating sheet 50 is formed by adding a heating wire 52 to a transparent film 51. The heating wire 52 may be attached to the transparent film 51 by various methods, for example, by a printing method. That is, the heating wire 52 can be attached to the transparent film 51 by printing a resistance conductive material in a predetermined pattern on one surface of the transparent film 51 by, for example, silk screen printing. Alternatively, an adhesive is previously applied to the transparent film 51 by a printing method or the like, and the heating wire 52 is wired in a predetermined pattern on the surface to which the adhesive is applied by a wiring device, and the adhesive is cured. Thus, the heating wire 52 can be attached to the transparent film 51. In short, any technique may be used as long as the heating wire 52 that generates heat by electrical resistance can be integrated with the transparent film 51.

  And the terminal 53, 53 is attached to the both ends of the heating wire 52 attached to the transparent film 51, and the heating sheet 50 is formed.

  The heating sheet 50 is attached to the inner surface of the globe element 22 by, for example, adhesion. For example, the heating sheet 50 is attached to the inner surface of the globe element 22 by pasting a double-sided adhesive sheet on the heating sheet 50, peeling off the release paper, and pressing the exposed adhesive surface against the inner surface of the globe element 22. be able to. Of course, the means for attaching the heating sheet 50 to the inner surface of the globe element 22 is not limited to one using a double-sided adhesive sheet. And after attaching the heating sheet 50 to the inner surface of the globe 20, the terminals 53 and 53 are electrically connected to complete the installation of the heating sheet 50.

  A snow melting effect can also be obtained by attaching the heating wire 52 directly to the inner surface of the globe element 22, but then it will be dedicated to snowfall areas. When used in areas without snowfall, the quality will be excessive and the user will have to pay for features that are not needed. As described above, a heating sheet 50 that is separate from the globe 20 is prepared, and this is attached to the inner surface of the globe 20 later, so that heating is performed only in an area that requires a snow melting function. A sheet attached with the sheet 50 can be supplied, or a user who has required a snow melting function can obtain the heating sheet 50 and attach it to the inner surface of the globe 20.

  In the above-described embodiment, only the flash units 30, 30, and 40 are shown in the globe 20. However, the diffused light source placed in the globe 20 is limited to the flash unit. Not what you want. In addition, for example, an LED unit in which a plurality of light emitting diodes are arranged on a substrate as shown in Patent Document 1 or Patent Document 2 can be arranged as a diffused light source. Speakers can also be arranged.

  Moreover, in the above-described embodiment, the vehicle-mounted diffused warning light is shown, but it does not mean that the scope of the present invention is limited to the vehicle-mounted diffused warning light. Of course, application to a diffused warning light installed on a fixed object such as a building is also included in the technical scope of the present invention.

  In addition, the shapes and structures of the respective parts shown in the above-described embodiments are merely examples of implementations in carrying out the present invention, and these limit the technical scope of the present invention. It should not be interpreted.

  Widely applicable to diffused warning lights used in snowy areas.

The drawings show an embodiment of the diffused warning light of the present invention, and this figure is a schematic perspective view. It is a horizontal sectional view. It is sectional drawing which follows the III-III line of FIG.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 10 ... Diffuse type warning light, 20 ... Globe, 30 ... Flash unit, 31 ... Discharge bulb, 40 ... Flash unit, 41 ... Discharge bulb, 50 ... Heating sheet, 51 ... Transparent film, 52 ... Heating wire

Claims (3)

A light-diffusing warning light comprising an LED unit comprising a plurality of light-emitting diodes and / or a flash unit that flashes and emits a discharge bulb in a translucent glove,
A diffused warning light characterized in that a heating sheet is attached to the inner surface of the globe. The diffused warning light according to claim 1, wherein the heating sheet is formed by attaching a heating wire to a transparent film. 3. The diffused warning light according to claim 1, wherein the heating sheet is attached to a position across the light emission direction of the LED unit and / or the flash unit on the inner surface of the globe. .

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