JPH0340885Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] This invention relates to an operating device for performing operations such as maintenance, inspection, and replacement of illumination lamps in externally illuminated road signs installed above roads.

[Prior art]

So-called externally illuminated road signs are often used on roads such as expressways and general national highways. For externally illuminated road signs, a sign board is attached to a support installed on the roadside or a crossbeam installed across the top of the road, and lighting equipment is installed above, below, or in front of the sign board. This is a method of lighting the area from the outside.

When fluorescent lamps are used as the light source of lighting equipment, the light source is long horizontally, providing uniform illumination of the sign board, the colors are visible, and the sign letters are clearly legible. The reality is that in most large sign boards, straight tube fluorescent lamps are installed, but not only fluorescent lamps, but conventional lighting equipment has an arm attached to the sign board attached to the pole or crossbeam. was overhanging and fixed to its tip. When a lamp, such as a fluorescent lamp, used in a lighting fixture broke, work vehicles such as a repair truck or a bucket truck were dispatched to replace the lamp, as well as inspect, maintain, and manage the lighting fixture.

[Problem that the invention attempts to solve]

However, since the work is carried out with work vehicles such as retsu cars and bucket trucks parked on the road, during the work, for safety reasons, traffic is restricted on all or one side of the road, and a guard is present. Such,
Even though it was simply replacing a lamp, the task was extremely troublesome. In addition, traffic regulations on roads impede the smooth running of vehicles, and conversely, there is a problem in that work hours are severely restricted.

The present invention solves the above-mentioned problems and provides a device that can be operated from above a structure on which a signboard is installed and can easily perform tasks such as replacing lamps.

[Means for solving problems]

In this case, a structure 2 on which a sign board 1 is installed has two or more arms 8 overhanging above the sign board 1, and a lamp 7 for illuminating the sign board 1 is installed across each arm 8. In this externally illuminated road sign, a hanging device 10 provided on the light fixture 7 is suspended from two arms 8, 8 arranged parallel to each other at a constant interval so as to be movable forward and backward. This is a light operating device for an externally illuminated road sign, characterized in that a square-shaped pull rod 13 having both ends connected to the arm 10 through a hinge 12 is installed along both arms 8 so as to be able to be raised and lowered. .

[Effect]

A worker stands on a scaffold 5 provided on a structure 2, grasps the handle part 13b in front of the pull rod 13, pulls it toward the user, draws the lamp 7 toward the user, and replaces the lamp. Since the draw rod 13 is bent at the hinge 12, it can be lifted upward and inserted between the arm rods 13a, 13a of the draw rod 13, if necessary.

〔Example〕

Embodiments of the present invention will be described below using figures.

FIG. 1 is a side view of a structure in which a sign board 1 is installed. The structure 2 may be of any type, such as cantilever type or gate type, but the embodiment shows an example in which the sign board 1 is installed on a gate type structure. In other words, it consists of a support 3 that connects frame rods vertically and horizontally and is installed on the road shoulder, and a crossbeam 4 that connects both supports 3 and spans over the road, and one side of this crossbeam 4. Sign board 1
This is what was installed. A working scaffold 5 is assembled on the cross beam 4. U-bolt etc. 6 on pillar 3
An arm 8 for attaching the lamp 7 is fixed by. The arm 8 extends upwardly along the column 3;
It is bent horizontally above the scaffold 5 and overhangs the sign board 1 above it. As shown in FIG. 2, the arms 8 are arranged in parallel at regular intervals in preparation for attaching the lamp 7, and are reinforced by attaching a side rest prevention rod 9a between their tips. The arm 8 is a pipe with a circular cross section, and one lamp 7 is mounted across two adjacent arms 8, 8.
Install. The lamp 7 has a horizontally elongated shape because it uses a straight fluorescent lamp as an illumination lamp. Figures 3A and 3B show the mounting structure of the lamp 7. A pair of hanging tools 10, 10 are attached to the upper surface of the lamp 7 at the same spacing as between the arms 8, 8. Each hanging tool 10 has a frame shape, and within the frame is a roller 11 that rolls on the arm 8. It has been established. The arm 8 has a cross-sectional shape of this roller 11 that is approximately drum-shaped.
The lamp 7 is stably supported on top of the arm 8, and the lamp 7 is installed so as to be movable forward and backward along the arm 8 via the hanging tool 10. In FIG. 3A, the tip of a pull rod 13 is connected to the upper surface of the hanging tool 10 via a hinge 12. pull rod 1
3, as shown in FIG. 4, a pair of arm rods 13a, 13a whose tips are connected to the hinge 12 of the hanging tool 10 along the upper surface of each arm 8, and both arm rods 1.
It has a handle part 13b that connects 3a and 13a.
It is a part of the mold. The handle portion 13b is extended to a position close to the scaffold 5, and the retaining metal fitting 14 applied to the upper surface of the base of the arm rod 13a is removably attached to the side rest prevention rod 9b that connects the intermediate portion of the arm 8. (FIG. 5), a locking tongue piece 15 is further provided in the center of the handle portion 13b, and this locking tongue piece 15 is engaged with a protrusion 16 protruding from the side rest prevention rod 9b, and is secured to the protrusion 16. A ring or the like 17 is inserted and the pull rod 13 is kept locked at all times. Reference numeral 18 in FIG. 1 is a vertical support rod for the arm 8. The vertical rest prevention rod 18 and the horizontal vibration prevention rods 9a, 9b are provided as appropriate within a range that does not hinder the movement of the hanging tool 10. It should be noted that the side rest prevention rod 9a connecting the distal ends of the arm 8 also serves as a stopper for preventing the hanging tool 10 from escaping. Also, 19 is a ballast box for a fluorescent light. Equipment required for maintenance and management of the lighting fixtures should be installed as far as possible from the scaffolding 5.

In the embodiment, when it becomes necessary to replace the lighting lamp, a worker climbs onto the scaffolding 5,
Unlock the front pull rod 13, remove the retaining metal fitting 14, grasp the handle 13b of the pull rod 13, and pull it toward you. Normally, the length of the arm rod 13a of the pull bar 13 is sufficiently longer than the depth of the scaffold 5, so the handle portion 13b is obstructed by the worker's own body and cannot be pulled sufficiently as it is. Of course, it is also possible to pull the pull bar 13 by shifting your body position from side to side on the scaffold 5 or by bending down, but in this case, the handle part 13b
By lifting it upward while grasping it, the pull bar 13 is tilted upward around the hinge 12, and after passing over the body through the handle part 13b, it is returned to its original position, and the body is held between the arms 13a, 13a. , and while pulling the arm rods 13a, 13a, pull the lamp 7 closer to you and replace the lamp or perform other necessary measures on the lamp 7. After taking action on the lamp 7, the pull rod 13 is pushed back by an operation completely opposite to that described above, and the pull rod 13 is locked and the retaining metal fitting 14 is locked.
installation and complete the work.

[Effect of idea]

As described above, according to this proposal, lamp replacement work is performed on the structure where the sign board is installed, so there is no need to dispatch work vehicles or regulate road traffic as in the past. The work can be easily and safely carried out by one worker in a short time. In particular, with this proposal, the pull rod can be handled while facing the lamp on the scaffold, and since the pull rod uses a cross-shaped member to move the pair of hanging tools at the same time, the lamp is not affected by wind pressure. The robot can be moved forward and backward effortlessly and stably in a standing position even in situations where the robot is standing, and since the pull rod can be raised and lowered, it can be operated while remaining in a fixed position. .

[Brief explanation of the drawing]

Figure 1 is a side view of the main parts of a road sign to which this proposal is applied, Figure 2 is a plan view of the same, Figure 3 A is an enlarged side view of the hanging device, Figure B is a cross-sectional view of the same, and Figure 4 is the installation of the pull rod. FIG. 5 is an enlarged plan view of the main part showing the attachment part of the retaining fitting, FIG. 6A is a plan view of the locking mechanism of the pull rod, and FIG. 1... Sign board, 2... Structure, 3... Support column, 4
... Crossbeam, 5 ... Scaffolding, 7 ... Lighting equipment, 8 ... Arm, 10 ... Hanging tool, 12 ... Hinge, 13 ... Draw rod.

Claims (1)

[Scope of utility model registration request] An externally illuminated road sign in which two or more arms are overhanging above the sign board on a structure on which the sign board is installed, and each arm is equipped with a lamp for illuminating the sign board. Two hanging fixtures for a light fixture are placed in parallel at regular intervals.
The book is suspended from each arm so that it can move forward and backward, and a square-shaped pull rod with both ends connected to each hanging tool through a hinge is installed along both arms so that it can be raised and folded. Light control device for externally illuminated road signs.