JPH0443362B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial Application Field) The present invention relates to a lighting fixture that is used by being attached to a pole erected on a road surface or the like.

(Prior Art) Lighting devices such as street lights and garden lights that are mounted on poles sometimes include lamps covered with translucent globes. Since this type of lighting equipment is generally used outdoors, waterproof packing is interposed at least between the equipment body and the glove.

However, despite having such a waterproof structure, the reality is that water still infiltrates into the lighting equipment. If water droplets accumulate inside the device, they will condense on the inner surface of the glove, and as the outside temperature increases, this condensation will accumulate inside the device itself, causing poor insulation. Measures are being taken such as establishing a

(Problem to be Solved by the Invention) However, as a water draining means in this type of lighting equipment, for example, as shown in Japanese Utility Model Application Publication No. 56-41906, a water draining means is provided on the upper surface of a support having a dish-shaped support portion on the upper surface. 〓Polymerize the glove support during a period of time;
It has been proposed that holes are formed in the support part and the glove support body at different positions. This product has alternating holes, which prevents light from leaking through the holes, which prevents insects from entering.However, water that enters between the glove and the glove support prevents water from entering the glove. Some of the water is drained from the pores of the support part through the pores of the support body, but the flow is stopped by capillary action and it collects at the bottom of the glove support part, or the pores are drained by surface tension. There are drawbacks such as the possibility that it may become clogged and not be able to drain all the water.

In order to prevent this, it is possible to increase the gap or the opening of the hole, but increasing the gap will promote the intrusion of water.
Moreover, it is inevitable that the light will accumulate at the bottom of the support part, and it is not preferable to make the opening of the hole large because it may promote the entry of insects due to light leakage or spoil the appearance.

On the other hand, as shown in Japanese Utility Model Publication No. 57-11299, a lamp body formed in a cylindrical shape and having a globe supported at its upper end has a drain hole on the side surface and is attached to the outside surface of a pole. As shown in Japanese Patent No. 39354, it has been proposed that a cylindrical body with a glove supported at the upper end is attached to a pole with a space between it and the outer surface of the body.

In these devices, water that has entered the outer surface of the lamp body or the main body and pole can flow down from the drain hole or between the main body and the pole, but on the other hand, the lamp body and the main body are cylindrical, and the upper end Since the globe support part is provided in the pole, water that enters between the globe and the lamp body or the main body may flow down into the inside of the pole and corrode necessary parts such as the terminal block installed inside the pole. There are some inconveniences.

The present invention has been made in consideration of the above-mentioned circumstances, and provides a lighting fixture that can effectively prevent light leakage, prevent water from entering into the pole, and ensure water drainage. The purpose is to

[Structure of the invention]

(Means for Solving the Problems) The present invention includes a base portion having a cylindrical shape and a pole fitting portion formed on the lower opening side, and a dish-shaped globe protruding outward from the outer surface of the intermediate portion of the base portion. A groove hole is provided in the side surface of the base above the base of the glove support of the instrument body formed including the support in the vertical direction and communicates with the bottom of the glove support, and a pole fitting portion is provided. The feature is that water is drained between the inner surface of the pole and the outer surface of the pole.

(Function) According to the present invention, water that enters the inside of the instrument from between the glove and the instrument body travels through the glove support and flows into the bottom of the glove support. The water flowing into the bottom flows downward along the inner surface of the base from the groove formed in communication with the bottom, and flows from the gap between the inner surface of the pole fitting part and the outer surface of the pole. run down.

Therefore, it is possible to satisfactorily prevent water from accumulating within the device, and also to satisfactorily prevent water from entering into the pole.

(Example) Hereinafter, an example of the present invention will be described with reference to FIGS. 1 to 3. 1 is the instrument body, this instrument body 1
is formed to include a cylindrical base part 3 whose bottom opening side is formed as the pole fitting part 2, and a dish-shaped globe support part 5 protruding outward on the outer surface of the intermediate part of this base part 3. has been done. In this embodiment, this instrument body 1 has a base portion 3 formed in a cylindrical shape.
and a globe support portion 5 formed in a dish shape protruding obliquely upward on the outer surface of the intermediate portion of the base portion 3, and the lower opening side of the base portion 3 is formed as the pole fitting portion 2. ing. Reference numeral 6 denotes a socket, and this socket 6 is provided, for example, on a mounting base 7 provided on the upper opening side of the base portion 3. Reference numeral 8 denotes a lamp, and this lamp 8 is, for example, a high-intensity discharge lamp, and is attached to the socket 6. 9 is a glove, and this glove 9 covers the lamp 8 and the appliance body 1.
It is attached to a glove attachment part 12 provided at the tip of the glove support part 5 of. In this embodiment, the glove 9 is formed into a transparent spherical shape with an opening 10 at one end, and a gasket 11 is attached to the edge of the opening 10.
It is attached with a packing 13 interposed therebetween. Then, a groove hole 15 is formed in the side surface of the base portion 3 of the instrument body 1 above the base of the glove support portion 5, passing through it in the vertical direction and communicating with the bottom portion 14 of the glove support portion 5. Water is drained between the inner surface of the fitting part and the outer surface of the pole 20, which will be described later. In this embodiment, the groove holes 15 are formed in the shape of notches whose upper ends open at the opening edge of the upper surface of the base portion 3, and are formed, for example, in three locations at intervals of approximately 120° along the circumferential direction.

As shown in FIG. 1, the lighting device configured as described above has a pole fitting portion 2 of a base portion 3 fitted to the upper end of a pole 20 erected on a road surface, etc., with a gap A. , it is fixed with screws 21 and used as a street light, for example.

Next, the operation of this embodiment will be explained. For example, water that enters the inside of the instrument from between the gasket 13 interposed between the glove attachment part 12 of the glove support part 5 and the glove 9 passes through the inner wall of the glove support part 5 and reaches the bottom part 14 of the glove support part 5. Flow into. The water that has flowed into the bottom 14 is
4 flows downward along the inner surface of the base portion 3 from the slot 15 formed in communication with the pole 20, and flows between the inner surface of the pole fitting portion 2 and the outer surface of the pole 20 from A to FIG. The water flows down as shown by the arrow. Although FIG. 3 shows a main part in cross section, it is a cross-sectional view at a position where the hole of the base portion 3 is removed. Since the slot 15 is formed along the vertical direction on the outer surface of the intermediate part of the base body 3, the opening area can be increased, and the blockage of the slot 15 due to surface tension can be effectively prevented, and water inside the device can be prevented from being blocked. Water can be drained well without accumulation, and water can be well prevented from entering the pole 20, and necessary parts such as a terminal block disposed inside the pole 20 can be prevented from being corroded. Furthermore, the base portion 3
Between the pole fitting part 2 and the pole 20 A is relatively small, and the base part 3 is cylindrical, so there is no light leakage and it is easy to prevent insects from entering the device. can be prevented.

Although the present invention has been described with respect to the above embodiments, the present invention is not limited thereto. For example, the slot may be an elongated hole with an upper end located in the middle of the base portion. Further, the number of slot holes may be one or two, or four or more may be provided. moreover,
The globe may be prismatic, and furthermore, the globe may be opaque.

〔Effect of the invention〕

As detailed above, the present invention includes a cylindrical base portion whose lower opening side is formed as a pole fitting portion, and a dish-shaped globe support portion protruding outward from the outer surface of the intermediate portion of this base portion. A groove hole is provided in the side surface of the base part above the base of the glove support part of the instrument body formed by the instrument body, and is provided with a slot that penetrates in the vertical direction and communicates with the bottom of the glove support part, and the inner surface of the pole fitting part. Since the water is drained between the outer surface of the pole and the outside surface of the pole, the water that has flowed into the device can flow down from the bottom of the globe support part to the space between the pole fitting part of the base part and the pole. This effectively prevents water from accumulating inside the device, and at the same time allows water to flow into the bottom of the glove support at the intermediate outer surface of the base, effectively preventing water from entering the pole. Corrosion of the necessary parts disposed inside can be well prevented. Also,
Since the slots are formed along the vertical direction on the side surface of the base, the opening area can be increased and water can be drained reliably. Furthermore, since the slots are not exposed outwardly,
It can effectively prevent light leakage, perform an insect repellent function, and improve the appearance.

[Brief explanation of drawings]

The figures show one embodiment of the present invention, and FIG.
FIG. 2 is a cutaway perspective view of the instrument body, and FIG. 3 is a sectional view of the main parts. DESCRIPTION OF SYMBOLS 1... Instrument main body, 2... Pole fitting part, 3... Base part, 5... Globe support part, 14... Bottom part, 6... Socket, 8... Lamp, 9... Globe, 15... Slot hole,
20...Paul.

Claims (1)

[Scope of Claims] 1. A cylindrical base portion whose lower opening side is formed as a pole fitting portion, and a dish-shaped base portion that protrudes outward from the outer surface of an intermediate portion of this base portion and has a glove attachment portion at the tip. A device body comprising: a glove support portion of the device body; a glove attached to the glove attachment portion of the device body; a lamp disposed inside the glove; In a lighting fixture that is fitted with a gap between the globe support and the outer surface thereof, the globe support extends vertically through the side surface of the base above the base of the globe support of the fixture main body. A lighting device characterized in that a groove is provided in the bottom of the pole to drain water between the inner surface of the pole fitting part and the outer surface of the pole. 2. The lighting device according to claim 1, wherein the slot is formed in the shape of a notch whose upper end opens at the upper opening edge of the base portion. 3. The lighting device according to claim 1 or 2, wherein three slots are formed in the base portion at intervals of approximately 120 degrees along the circumferential direction.