JPH0718096Y2 - Road lighting - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a road lighting device such as a crime prevention light.

[Conventional technology]

Conventionally, as shown in FIG. 5, there is a crime prevention road lighting device in which a device main body 42 is fixed to a pillar 40 standing on a road 44 via a fixing arm 41. A linear fluorescent lamp 43 is attached to the instrument main body 42, and light is widely emitted in the axial direction of the lamp 43. For this reason, light leaks to the windows 46 and the fields 47 of the private houses 45 along the road, causing light pollution. Such light pollution often comes to the surface as a trouble only after the road lighting equipment is installed.

[Problems to be solved by the device]

In order to prevent such light pollution, conventionally, as shown in FIG. 6, a plurality of louvers 48 are attached side by side in the axial direction of the lamp 43 to prevent the spread of light in the axial direction. There was a problem that became complicated. Moreover, many louvers
By providing 48, there was also a problem that the efficiency of the equipment was reduced.

In addition, there are various conditions around the point where the road lighting equipment is installed, and if various kinds of individually designed road lighting equipment were installed, the There was a problem that the lighting fixtures became inconsistent and spoiled the landscape.

Therefore, an object of the present invention is to provide a road lighting device which can easily and surely prevent light pollution without lowering the efficiency of the device or complicating the structure, and which does not spoil the landscape.

[Means for Solving the Problems]

The road lighting device of the present invention has an arm attached to a pillar standing upright on the road, and a device main body having a reflecting plate and a linear light source and a front surface covered with a translucent cover is attached to the arm.
The instrument body is placed diagonally upward in the width direction of the road,
The rotation axis is arranged in a direction perpendicular to the axis direction of the linear light source and is rotatably attached to the arm. The movable reflection plate is provided so as to be slidable forwards and backwards along the fixed reflection plate, and the linear light source can be shielded by the front lead-out portion of the movable reflection plate.

[Action]

According to the configuration of the present invention, the instrument body is rotatably attached to the arm with the rotation axis centered at right angles to the axis direction of the linear light source, and the linear light source is vertically and horizontally aligned with the arm. It is possible to change the degree of spread of the light distribution by arranging in. In addition, a movable reflection plate is provided so as to be slidable forward and backward along the fixed reflection plate of the instrument body.The movable reflection plate is pulled out to the front to shield the linear light source and spread the light distribution. You can change the condition.

〔Example〕

An embodiment of the present invention will be described with reference to FIGS.

In FIG. 1, 10 is a pillar standing upright on the road side, and 11
Is an arm fixed to the pillar 10 by inclining obliquely upward in the width direction of the road. Further, reference numeral 12 denotes a device body, to which a linear light source 13 made of a fluorescent lamp is attached, and a front surface is covered with a translucent cover 16. The instrument main body 12 is attached to the arm 11 with a mounting screw 15, and the shaft center of the mounting screw 15 serves as a rotating shaft center 14 arranged in a direction perpendicular to the axial center direction of the linear light source 13.
That is, the instrument main body 12 can take a vertical posture extending in parallel with the arm 11 as shown in FIG. 1 and a horizontal posture extending in a direction perpendicular to the arm 11 as shown in FIG. The instrument body 12 is attached to the arm 11 so that the instrument body 12 is arranged obliquely upward in the width direction of the road.

Further, as shown in FIG. 3, a fixed reflection plate 17 is fixedly installed in the instrument body 12, and a pair of movable reflection plates 18, 19 slidable along the inner surfaces on both sides of the fixed reflection plate 17. Is provided. That is, both movable reflecting plates 18 and 19 have a vertically long slot (not shown) extending in a direction parallel to the paper surface,
By inserting screws 20 and 21 into the elongated holes and fastening them to the fixed reflection plate 17, the movable reflection plates 18 and 19 are slidably attached to the fixed reflection plate 17 in the directions of arrows A and B, respectively. Then, as shown in the drawing, the light-shielding range C can be widened by pulling out the movable reflection plate 19 from the inner surface of the fixed reflection plate 17. The maximum light-shielding range D can be obtained by pulling out to the position of the movable reflection plate 19 shown by the imaginary line.

According to the road lighting device configured as described above, when light pollution occurs, as shown in FIG.
And the linear light source 13 is arranged at a right angle to the arm 11, and the movable reflecting plate 19 is further pulled out. Then, private house 45
It is possible to prevent light from leaking to the window 46 of the. Also a private house
If there is a field on the reflection side with 45 and the movable side, the movable reflector on the opposite side
Just pull out 18. In this way, by rotating the instrument body 12 and pulling out the movable reflectors 18 and 19 to easily change the light-shielding range, light pollution can be easily and reliably prevented, and it is necessary to install a louver as in the past. , The structure is simple and the instrument efficiency is not lowered.

Further, since the same road lighting device is installed on the roadside and the irradiation range of each road lighting device can be changed according to the surrounding conditions, the landscape can be unified.

Further, the movable reflection plates 18 and 19 on both sides can be arbitrarily drawn out, the light-shielding range can be freely adjusted, and a light distribution pattern rich in flexibility can be obtained.

[Effect of device]

According to the road lighting device of the present invention, the device main body is rotatably attached to the arm by arranging the rotating shaft center in a direction perpendicular to the axial direction of the linear light source, By arranging the light sources vertically and horizontally, the degree of spread of the light distribution can be changed. In addition, a movable reflector is provided so that it can slide back and forth along the fixed reflector of the fixture body.The movable reflector is pulled forward and the linear light source is shielded by the extended portion to spread the light distribution. You can change the condition. In this way, without lowering instrument efficiency or complicating the structure,
Light pollution can be easily and reliably prevented. Furthermore, since the same road lighting device is installed on the roadside and the irradiation range can be changed according to the surrounding conditions, the effect that the landscape can be unified can be obtained.

[Brief description of drawings]

FIGS. 1 (A) and 1 (B) are a side view, a front view, and a vertical view of a lighting device for a road according to an embodiment of the present invention, and FIGS.
(B) is a side view and a front view of its lateral position, FIG. 3 is a cross-sectional view of the instrument body, FIG. 4 is its installation state diagram, FIG. 5 is a diagram showing the problems of the conventional example, and FIG. FIG. 1 is a side view of a conventional road lighting device. 11 ... Arm, 12 ... Instrument body, 13 ... Linear light source, 14 ... Rotation axis

Claims (1)

[Scope of utility model registration request] [Claim 1] An arm is attached to a pillar standing upright on the road,
A lighting fixture for a road, comprising a reflector and a linear light source, the front surface of which is covered with a translucent cover, and the arm being attached to the arm, wherein the main body of the fixture is inclined obliquely upward in the width direction of the road. Arranged, and rotatably attached to the arm by arranging a rotation axis in a direction perpendicular to the axis of the linear light source, the reflector is a fixed reflector fixed in the instrument body, and And a movable reflection plate slidably provided back and forth along the fixed reflection plate on each side of the linear light source,
A lighting device for a road, characterized in that the linear light source can be shielded by a front extraction portion of the movable reflection plate.