JP2003157716A - Outer illumination apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an outdoor illumination apparatus from which water, even if entered inside, can be drained smoothly, by giving an enclosed structure in which rain water and insects or the like can hardly enter. SOLUTION: This outdoor illumination apparatus is composed of an illumination unit 2 and transparent plates covering the openings 8, 9, and drain ditches 21A, 21B, 21C that are formed in the periphery of the openings 8, 9 of the illumination unit 2, and is further provided with a drain hole 20 in the downstream. A float valve 24 that opens and closes the driven hole as an automatic open and shut valve is provide at the drain hole 20. Thereby, the rain water entered through the gap between the illumination unit 2 and the transparent plates 10 or the like is collected at the drain hole 20 through the drain ditches 21A-21C and drained from the drain hole 20, and after drainage, the drain hole 20 is closed by the float valve 24. Therefore, the inside is not contaminated and a prescribed illumination intensity can be maintained for a long time.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an outdoor illuminator used as an outdoor light such as a streetlight, a crime prevention light installed outdoors, and an illuminated signboard with internal lighting, and in particular, has a waterproof and insect-proof closed structure. Outdoor lighting equipment.

[0002]

2. Description of the Related Art Conventionally, an open-bottom type outdoor illuminator is well known. However, since the interior of such a lighting fixture is contaminated by rainwater, dust, insects, or automobile exhaust gas, it not only spoils the appearance, but also reduces the illuminance and loses its function as an illuminator if it is not cleaned regularly. There was a problem. For this reason, a closed type outdoor illuminator is also widely used.

[0003]

However, according to the closed type outdoor illuminator, the illuminator main body to which a light source such as an incandescent light bulb or a fluorescent tube is attached, and the light transmission such as a plate or a globe made of glass or synthetic resin. Although it is coupled with a transparent member through a rubber packing or the like, since the sealing material of that kind deteriorates with time due to radiant heat of the light source or ultraviolet rays from sunlight, the illuminator main body and the light transmitting member There was a problem that rainwater and the like would get inside from the joint.

Therefore, there is a case where a water draining hole is formed in the bottom of the illuminator body, but the water that has entered inside is not guided to the water draining hole, and this is accompanied by dust and the like on the inner surface of the light transmitting member. There was a problem that it adhered to. There was also a problem that rainwater and insects would get in from the drain hole.

The present invention has been made in view of the above circumstances, and an object thereof is to provide an outdoor illuminator having a sealed structure in which rainwater, dust, insects, automobile exhaust gas, etc. are hard to enter. Even if water gets in, it should be able to be drained well.

[0006]

In order to achieve the above object, the present invention provides an illuminator main body having an opening for leaking emitted light of a light source to the outside, and a light transmissive member for closing the opening. In an outdoor illuminator comprising, a drainage groove is formed in a peripheral portion of the opening inside the illuminator body,
A drainage hole is formed downstream of the drainage groove.

Further, in the above outdoor illuminator, an automatic opening / closing valve is provided in the drain hole.

Further, in the outdoor illuminator, which comprises an illuminator main body having an opening for leaking the emitted light of the light source to the outside and a light transmitting member for closing the opening, the illuminator main body Is a basket-shaped rigid frame surrounding the light source and a shade covering the upper part of the rigid frame. A drainage hole is formed in the bottom of the rigid frame forming the opening, and an automatic opening / closing valve is provided in the drainage hole. And a drain groove communicating with the drain hole is formed inside the rigid frame at the peripheral edge of the opening.

In particular, the automatic on-off valve described above is a float valve, and is characterized in that a valve body having a diameter larger than that of the water drain hole is provided at the upper end of a pin that is passed through the water drain hole.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, application examples of the present invention will be described in detail with reference to the drawings. FIG. 1 is a side view showing a preferred form of an outdoor illuminator according to an example of the present invention, and FIG. 2 is a plan view of the outdoor illuminator. In FIG. 1, 1 is a light source such as an incandescent light bulb, 2 is a lantern-shaped illuminator body containing the light source 1, and the illuminating body 2 covers a cage-shaped rigid frame 3 surrounding the light source 1 and an upper portion thereof. It is composed of a shade 4.

In this example, the rigid frame 3 is a frame made of casting integrally formed of aluminum, and its shape is a hexagonal shape in which the diameter gradually increases upward, and the entire surface thereof is baked with melamine or the like. It is painted. In particular, the rigid frame 3 includes a lower frame 5 having a hexagonal shape, vertical bars 6 that radially rise from each corner of the lower frame 5, and the vertical bars 6 thereof.
Has an upper frame 7 to which the upper end of is connected, and openings 8 and 9 formed inside the lower frame 5 and between the vertical bars 6 are made of fiber reinforced glass or the like as a light transmissive member. Transparent plate 10
Are combined. The transparent plate 10 is not limited to a glass plate, but may be a plastic plate such as acrylic, and may be a semitransparent material such as frosted glass or a plus chip mixed with a coloring agent.

On the other hand, the shade 4 is also a casting integrally molded from aluminum, and its form is a hexagonal pyramid, and the entire surface thereof is baked and coated with melamine or the like. In particular, a flange 11 for connecting to the rigid frame 3 is formed in the lower portion of the shade 4, and a connecting portion 12 for fixing to the tip of the column P is provided in the upper portion. The illuminator body 2 may be made of stainless steel or another material.

Next, FIG. 3 shows a cross section taken along line XX in FIG. As is clear from this figure, a lamp holder 13 for holding the light source 1 is provided directly below the connecting portion 12 on the upper portion of the inner surface of the shade 4. The lamp holder 13 is composed of a base 13A (socket) for mounting the light source 1 and a fixing metal fitting 13B holding the base 13A, and the fixing metal fitting 13B is attached to the inner surface of the shade 4 with a screw or the like. Here, the connection portion 12 has a hole 14 for passing a wire therein, and the hole 1
Electric power is supplied to the light source 1 through a wiring (not shown) passed through 4. Since the connecting portion 12 is fitted inside the tip of the pillar P, rainwater or the like does not enter from here.

Further, as shown in FIG. 3, the rigid frame 3 and the cap 4 are fastened with screws 15. The fastening portion will be described with reference to FIG. 4. The flange 11 of the shade 4 is formed with a pair of inner and outer projecting ridges 16A and 16B protruding downward at the peripheral edge thereof, and the ridges 16A and 16B are arranged between the ridges 16A and 16B. The edge portion 7A of the upper frame 7 constituting the rigid frame 3 is fitted into the annular groove 17 formed in the. Further, a screw hole 18 is formed at a position opposite to each other on the outer ridge 16A and the edge portion 7A of the upper frame, and the rigid frame 3 and the shade 4 are firmly fixed by a screw 15 screwed into the screw hole 18. Is to be concluded. In addition, the inner protrusion 16B does not interfere with the screw 15 and the outer protrusion 1B
It is shorter than 6A, and its lower end does not reach the position of the screw hole 18.

On the other hand, as shown in FIG. 3, openings 8 and 9 are formed inside the rigid frame 3 with a sealing material 19 made of rubber or the like interposed therebetween.
In addition to the transparent plate 10 that closes the water, a drain groove 21 that communicates with a drain hole 20 described later is provided at the peripheral edge of the openings 8 and 9.
A, 21B and 21C are formed.

Here, FIG. 5 shows a cross section taken along line XX in FIG. As is apparent from this figure, the drainage grooves 21B are formed in parallel on both sides of the inner surface of the vertical bar 6 which is inclined.
The edge of the transparent plate 10 is applied to the inner surface of the transparent plate 10 via the sealing material 19. In this example, the drainage grooves 21A to 21C have a width of 3
The depth is set to about 5 mm, and the depth is set to about 4 to 6 mm. Further, the sealing material 19 is in close contact with the inner surface of the vertical rail 6 with the drain groove 21B sandwiched therebetween, and the transparent plate 10 is in contact with the sealing material 19 at the edge thereof while covering the drain groove 21B. Although the transparent plate 10 and the seal material 19 are fixed by an adhesive, a screw shaft (not shown) is provided on the vertical crosspiece 6, and the transparent plate 10 and the seal material 19 are fastened with the screw shaft and the nut. You may.

Next, FIG. 6 is a plan view showing the inside of the rigid frame. As is clear from this figure, the drain grooves 21B are formed in all the vertical bars 6 and extend from the upper frame 7 to the lower frame 5 over the entire length of the vertical bars 6, respectively. Also, drainage 21A
Are formed in series over the entire inner surface of the upper frame 7, and the upper ends of the drain grooves 21B are connected to the drain grooves 21A.

Further, a drainage groove 21C is formed at the bottom of the rigid frame 3 which constitutes the illuminator main body, and a screw shaft 23 for fixing the transparent plate 10 for closing the opening 9 at the bottom and water having a diameter of several mm. A punch hole 20 is provided.

The drain groove 21C is formed in a series over the entire circumference of the inner surface of the lower frame 5, each lower end of the drain groove 21B is connected to the drain groove 21C, and a drain hole 20 is opened downstream thereof. Is done. In this example, the drain hole 20 is located in the drain groove 21C and is opened to the outside from the diagonal portion of the lower frame 5. In particular, the drain groove 21C is provided with a slight water gradient toward the drain hole 20.

Therefore, the rainwater that has entered from the joint between the rigid frame 3 and the shade 4 flows downward from the drain groove 21A along the drain groove 21B, and enters the rainwater that has entered from the gap between the vertical bar 6 and the transparent plate 10. Is joined to the drainage groove 21C at the bottom through the drainage groove 21B, and rainwater that has entered through the gap between the lower frame 5 and the transparent plate 10 is also smoothly guided to the downstream drainage hole 20 through the drainage groove 21C. It is discharged from the hole 20 to the outside.

Since the water drainage hole 20 has a diameter of about several mm, there is little risk that rainwater, sand dust, insects or the like will enter from here, but in this embodiment, the water drainage hole 20 is opened only during drainage, and The drain hole 20 is closed.

For this reason, a float valve 24 as shown in FIG. 7 is provided in the water drain hole 20 as an automatic open / close valve for opening and closing the water drain hole 20.
Is provided. As is clear from this figure, the float valve 24 is composed of a pin 25 that is passed through the drain hole 20 and a valve body 26 that is provided at the upper end of the pin 25.

Of these, the pin 25 is a tapered shaft having a length of about several centimeters.
Acts to keep the upper part of the. On the other hand, the valve body 26 is a spherical float having a diameter larger than that of the water drainage hole 20, and is made hollow for imparting buoyancy, or formed of foamed resin or the like having a small specific gravity.

According to such a float valve 24, the valve body 26 is floated above the water surface by the water collected on the drainage hole 20 through the drainage grooves 21A to 21C, whereby the drainage hole is drained. 20 is opened to drain water to the outside, and when drainage from the drain hole 20 is completed, the float valve 24 descends by its own weight, and the valve body 26
The water drain hole 20 is sealed at. Therefore, rainwater, dust, insects, automobile exhaust gas, or the like does not enter through the water drain hole 20, the inside is not contaminated even after long-term use, and a predetermined illuminance can be maintained for a long time as an illuminator.

The preferred example of the present invention has been described above.
The present invention can be applied not only to the hanging type having the connecting portion 12 on the upper portion as in the above example, but also to the one installed on the upper end of the column or the one using the spherical globe as the light transmitting member. Further, the present invention can be applied to street lights, crime prevention lights, and illuminated signboards with internal lighting.

FIG. 8 shows an example applied to an electric signboard. Figure 8
In the figure, reference numeral 30 denotes a rectangular frame-shaped illuminator main body having openings 31 on the left and right sides, and a light source 32 formed of a fluorescent tube or the like is installed inside thereof. Also, the opening 3 of the illuminator body 30
A signboard 33 having a shop name, a product name, etc. as a light-transmissive member is coupled to 1. In particular, a drainage groove 34 is formed inside the illuminator body 30 at the periphery of the opening 31, and a drainage hole 35 is formed downstream of the drainage groove 34 as shown in FIG. The drainage hole 35 is provided in the drain groove 34 at the bottom of the illuminator body 30, and the drainage hole 35 is provided with a float valve 36 similar to the above example as an automatic opening / closing valve. Also in this example, the sealing material 37 is fixed to the illuminator main body 30 with the drainage groove 34 interposed therebetween, and the signboard 33 as a light transmissive member is screwed to the illuminator main body 30 via the sealing material 37. It The same effect as in the above example can be obtained with such an outdoor illuminator as an illuminated signboard.

[0027]

As is apparent from the above description, according to the present invention, the drainage groove is formed at the peripheral portion of the opening in the illuminator body forming the opening which is closed by the light transmissive member such as the glass plate. Since it was formed and a drainage hole was drilled in the downstream of it, rainwater that entered from the joint part of the illuminator body and the light transmissive member is guided to the drainage hole through the drainage groove, and from that drainage hole to the outside. Since it is discharged, dirty water containing dust does not adhere to the inner surface of the light transmissive member, and a predetermined illuminance can be maintained for a long period of time without cleaning.

Further, since an automatic opening / closing valve is provided in the water drain hole so that the water drain hole is opened only when draining water,
It is possible to prevent rainwater, dust, insects, automobile exhaust gas, or the like from entering the inside through the drain hole.

In particular, since the automatic on-off valve is constructed as a float valve having a simple structure in which a valve body is provided at the upper end of a pin which is passed through the water drain hole, the cost is reduced, and the waterproof, dustproof, and insectproof effects are greatly improved. Improve to.

[Brief description of drawings]

FIG. 1 is a side view showing an outdoor illuminator according to the present invention.

FIG. 2 is a plan view of the outdoor illuminator.

FIG. 3 is a sectional view taken along line XX in FIG.

FIG. 4 is a partially enlarged cross-sectional view showing a joint portion between a rigid frame and a shade which constitutes the illuminator main body.

5 is an enlarged sectional view taken along line XX of FIG.

FIG. 6 is a plan view showing the inside of a rigid frame.

FIG. 7 is an enlarged cross-sectional view showing a portion where a drain hole is formed.

FIG. 8 is a perspective view showing another embodiment of the outdoor illuminator according to the present invention.

9 is a partially enlarged cross-sectional view of the outdoor illuminator shown in FIG.

[Explanation of symbols]

1,32 light source 2,30 Illuminator body 3 rigid frame 4 shades 5 lower frame 6 vertical bars 7 Upper frame 8, 9, 31 opening 10 Transparent plate (light transmissive member) 19 Seal material 20,35 drain hole 21A, 21B, 21C, 34 Drainage 24,36 float valve 25 pin 26 valve body 33 Signboard (light transmissive member)

Claims (4)

[Claims] 1. An outdoor illuminator comprising an illuminator main body having an opening for leaking emitted light of a light source to the outside, and a light-transmissive member for closing the opening. An outdoor illuminator, characterized in that a drainage groove is formed inside the opening at the peripheral edge of the opening, and a drainage hole is formed downstream of the drainage groove. 2. An outdoor illuminator, wherein an automatic opening / closing valve is provided in the drain hole. 3. An outdoor illuminator comprising an illuminator main body having an opening for leaking emitted light of a light source to the outside, and a light-transmissive member for closing the opening. Is a basket-shaped rigid frame surrounding the light source and a shade covering the upper part of the rigid frame. A drainage hole is formed in the bottom of the rigid frame forming the opening, and an automatic opening / closing valve is provided in the drainage hole. And a drainage groove communicating with the drainage hole is formed inside the rigid frame at the periphery of the opening. 4. The automatic opening / closing valve is a float valve in which a valve body having a diameter larger than that of the water drainage hole is provided at an upper end of a pin that is passed through the water drainage hole. Outdoor illuminator.