JP2826657B2 - Road auxiliary equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to ancillary equipment such as a road information sign tower and a traffic control tower.

[0002]

2. Description of the Related Art A pole portion is vertically erected on a side of a road,
In a conventional road information sign tower or a monitoring tower in which a horizontal arm is joined to the pole portion in an overhanging manner in the width direction of the road, the horizontal arm is originally fixed in a fixed posture with respect to the pole portion. In the case of the technical idea of the thing, when changing the horizontal arm, it is necessary to work in a loose state of rattling, and it takes time and effort.Also, prior art in which both are rotatable, for example, 4-820
In No. 19, the mounting of the horizontal arm (duct portion) to the pole portion (steel pipe column) is performed by fixing the circumferential surface as a joint surface with fastening bolts in a posture orthogonal to the vertical axis. The movable range of the
Since the long base corresponding to the movable range is formed, the mounting base of the horizontal arm is weak. In the structure disclosed in JP-A-6-173225, the joint between the pole and the arm is fitted to the pole. In the rotary joint portion of the arm portion to be joined, the arm portion is joined by frictional force of the shaft end by a bolt in a posture orthogonal to the axis of the pole portion.

[0003]

SUMMARY OF THE INVENTION The present invention has been made in view of the above,
The horizontal arm for traffic control or road information sign protruding on the road is rotated on the median strip or on the pole installation line on the side of the road in special circumstances (for example, Akita's pole festival). It is an object of the present invention to provide a road supplementary facility that can safely and reliably perform a posture changing operation in a short time when the vehicle is brought back or restored to a normal use state.

According to a first aspect of the present invention, there is provided a road supplementary equipment comprising a horizontal arm rotatably joined to a pole vertically standing on the ground by a rotation support means, wherein the rotation support means is provided at a base of the horizontal arm. A support shaft erected at the upper end of the pole portion is inserted through a dry bearing into the cylindrical body joined with the axis at a right angle, and the lower end of the cylindrical body is supported by thrust metal. And the upper end of the pole portion are joined to each other at each of the flanges provided therearound.The upper pole portion is erected on the upper portion of the cylindrical body, and the other end of the support having one end attached to the peripheral surface is connected to the horizontal arm. It is attached to the upper surface.

According to a second aspect of the present invention, there is provided a road supplementary equipment comprising a horizontal arm rotatably joined to a pole vertically standing on the ground by a rotary support means, wherein the rotary support means is provided at a base of the horizontal arm. A long support shaft erected at the upper end of the pole portion through a dry bearing is inserted through the cylindrical body into the long cylindrical body joined with the axis centered at a right angle, and the thrust is applied. The lower end of the cylindrical body is supported by metal, and the cylindrical body and the upper end of the pole portion are joined at each of the flanges provided therearound, and the other end of the support having one end attached to the upper peripheral surface of the cylindrical body is formed. It is attached to the upper surface of a horizontal arm.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS In the first invention, the base of the horizontal arm and the cylindrical body are joined together by a welded structure, or both are provided with a flange having a vertical surface as a joint surface. The upper pole part and the cylindrical body are joined by a detachable joint at each flange provided around them, a joint joined in a screwed state, or a welding structure. One that is integrally joined is exemplified.

In the second aspect of the invention, the joint between the base of the horizontal arm and the long cylindrical body is carried out in the same manner as in the first aspect of the invention. It is arranged at intervals that can rotate in a well-balanced manner according to the length of the body, and a seal member such as an O-ring is installed at the upper end of the inner surface of the cylindrical body to prevent intrusion of rainwater etc. from the outer peripheral surface of the support shaft Is also considered.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention is applied to a monitoring tower a in a traffic control system.
As shown in FIG. 2, the rotation supporting means has a pole 2 having a required diameter and a required length integrally formed on an upper end of a pole part 1 having a required length which stands vertically on the ground. Set up
A dry bearing 4 is fitted over the inner surface of the cylindrical body 3 which is fitted on the support shaft 2 in two vertical stages, and the lower end of the cylindrical body 3 is attached to the support shaft 2.
Supported by a thrust metal 5 fitted to the base of the cylindrical body 3
And a flange 7 provided at the upper end of the pole portion 1 are joined together by bolts 8 and nuts 9, and a flange 10 having a vertical surface as a joining surface is provided on one side of the cylindrical body 3. And a flange 13, a bolt 13, and a nut 14, which are integrally protruded from the base of the horizontal arm 11 and have the same specifications.
And a flange 15 provided on the upper end of the cylindrical body 3 and a flange 17 provided on the lower end of the upper pole portion 16 are connected with bolts 18 and nuts 19. The signal cable 21 is wired from the pole portion 1 to each vehicle sensor 20 of the horizontal arm 11, and the other end of the support 22 having one end attached to the peripheral surface of the upper pole portion 1 is horizontally connected. It is attached to the upper surface of the arm 11.

In a normal use state, the monitoring tower a thus constructed is, as shown in FIG. 1, a horizontal arm with respect to a pole part 1 which is vertically erected on a median strip or a side of a road. 11 is overhanged on the roadway and is supported by the upper pole section 16 with the support 22 and is monitored by the vehicle detector 20 while the traffic volume of the vehicle is monitored. However, when the roadway is temporarily used for another purpose. , The horizontal arm 11 is retracted on the line on which the pole portion 1 is arranged so as not to be in the way. In this case, if the joint between the flange 6 at the lower end of the cylindrical body 3 and the flange 7 at the upper end of the pole part 1 is released, the horizontal arm 11 rotates together with the cylindrical body 3 and the upper pole part 16. Has a sufficient bearing surface with respect to the support shaft 2 and is supported by the dry bearing 4, and the thrust load is supported by the thrust metal 5. Therefore, the posture can be easily changed and the rotation direction of the horizontal arm 11 can be improved. Can be performed safely and simply by checking
This is achieved by a small work by engaging and disengaging the bolts 8 and the nuts 9 of the flanges 6 and 7 to secure the predetermined posture. In addition, since the thrust metal 5 and the dry bearing 4 in which the solid lubricant is embedded are disposed in a watertight manner inside the cylindrical body 3, the light rotating performance can be stably maintained for a long period of time.

Next, the monitoring tower b shown in FIG. 3 will be described. The rotating support means has a long support shaft 2 erected at the upper end of the pole portion 1 and is long with respect to the support shaft 2. The cylindrical body 3 is penetrated and externally fitted to the inner surface of the cylindrical body 3 through a dry bearing 4 which is internally fitted at an appropriate interval, and the lower end of the cylindrical body 3 is supported by a thrust metal 5 fitted to the base of the support shaft 2. A flange 6 provided on the lower end of the cylindrical body 3 and a flange 7 provided on the upper end of the pole portion 1 are joined by bolts 8 and nuts 9, and a vertical surface is provided on one side of the cylindrical body 3. The other end of the support 22 having one end attached to the upper peripheral surface of the cylindrical body 3 with the flange 12 integrally extended and joined to the base of the horizontal arm 11 with the bolt 12 and the nut 14 together with the flange 12 extended with the same specifications. Is attached to the upper surface of the horizontal arm 11, and the lower surface of the horizontal arm 11 is required. As well as vertically the vehicle detector 20 is in place, formed by wiring a signal cable 21 from the pole portion 1 to the vehicle detectors 20 of the horizontal arm 11. In the case of the monitoring tower b, since the space between the inner surface at the upper end of the cylindrical body 3 and the outer surface of the support shaft 2 is exposed to rainwater or the like, an O-ring is formed on the inner surface near the open end of the cylindrical body 3 so that rainwater does not enter inside. 23. As described above, the monitoring tower b is lighter in terms of the rotation performance of the horizontal arm 11, but requires sufficient consideration in terms of waterproofing measures and costs. In addition, a bearing (not shown) in which the cylindrical body 3 externally fitted to the long support shaft 2 is shortened and one end of a support 22 having the other end attached to the horizontal arm 11 is rotatably externally fitted to the support shaft 2. The present invention is also easily recalled from the present invention.

[0011]

According to the present invention, in the closed structure, the horizontal arm has a sufficient bearing surface with respect to the pole portion and is supported by the dry bearing, and the thrust load is supported by the thrust metal. Even if a heavy load is applied to the horizontal arm, the posture can be changed easily and maintenance-free can be achieved safely and safely by only positioning the horizontal arm in the rotating direction. Bolts and nuts of both flanges with a horizontal surface as the joint surface It is possible to cope with the change of the attitude of the horizontal arm of the road-related equipment installed in all cantilevered states with a small amount of labor due to the engagement and disengagement.

[Brief description of the drawings]

FIG. 1 is a monitoring tower a as an auxiliary facility for roads according to the present invention.
FIG.

FIG. 2 is a partially enlarged cross-sectional view of a main part of the rotation support means in the monitoring tower a.

FIG. 3 is a partially enlarged cross-sectional view of a main part of the rotation support means in the monitoring tower b.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Pole part 2 Support shaft 3 Cylindrical body 4 Dry bearing 5 Thrust metal 6 Flange 7 Flange 8 Bolt 9 Nut 10 Flange 11 Horizontal arm 12 Flange 13 Bolt 14 Nut 15 Flange 16 Upper pole part 17 Flange 18 Bolt 19 Nut 20 Vehicle detector 21 signal cable 22 support 23 O-ring a monitoring tower b monitoring tower

Claims (2)

(57) [Claims] 1. A road auxiliary equipment comprising a horizontal arm rotatably joined to a pole portion vertically erected on the ground by a rotation support means, wherein the rotation support means directs an axis of the shaft at a right angle to a base of the horizontal arm. A support shaft erected at the upper end of the pole portion is fitted inside the joined cylinder via a dry bearing, and the lower end of the cylinder is supported by thrust metal. The upper pole portion is erected on the upper portion of the cylindrical body, and the other end of the support having one end attached to the peripheral surface is attached to the upper surface of the horizontal arm. Road auxiliary equipment. 2. In a road supplementary facility comprising a horizontal arm rotatably connected to a pole vertically standing on the ground by means of a rotation support means, the rotation support means directs an axis at right angles to a base of the horizontal arm. A long support shaft erected at the upper end of the pole portion is inserted through the cylindrical body through a dry bearing into the joined long cylindrical body, and the lower end of the cylindrical body is made of thrust metal. And the upper end of the support having one end attached to the upper peripheral surface of the cylindrical body and the other end attached to the upper surface of the horizontal arm. Road auxiliary equipment.