JPS63165604A - Road mark holding apparatus - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a holding device for various signs, including traffic signs, installed on the ground.

<Conventional technology>

These signs have a structure in which each sign plate is attached to a post erected on the road.There are various ways to attach the post and sign board, but most of them are attached to the post with a band or ring. Currently, a fastening metal fitting consisting of a body is attached using a fastening tool such as a bolt, and the fastening metal fitting and a sign plate are attached by mechanical fitting and/or welding.

However, with a structure like Otsu's, since it is erected on the roadside, if a car trying to park nearby collides with the sign board, the sign board itself or its mounting base may be damaged or deformed. There is a problem that the sign loses its original function if it is bent or bent to face in a direction different from the specified direction.

<Problems to be Solved by the Invention> The present invention solves the above-mentioned problems of the conventional art, and prevents the sign board from being easily damaged even when subjected to an impact force, and prevents the sign board from facing in the other direction temporarily. Another object of the present invention is to provide a road sign holding device that automatically returns to the original normal direction afterward.

<Means for Solving the Problems> The means employed in the present invention to achieve the above object are as follows: A movable cylinder is loosely fitted onto a pillar erected on the road. A coiled spring body is interposed between the support column and the movable tube, and one end of the upper or lower side of the spring body is connected and fixed to the support column, and the other end of the spring body is connected and fixed to the movable tube. This is a road sign holding device characterized in that a sign plate is attached to the movable cylinder and the movable cylinder is held at a required height.

<Function> In the road sign holding device of the present invention, for example, as shown in FIG. They are connected through the body (3). In other words, either the upper or lower end of the spring body (3) is fixed to the support column (1), and the other end is fixed to the movable tube (2), so that the movable tube (2) is connected to the support column (1). It is maintained at a predetermined height in the vertical direction. Furthermore, this movable tube (
2) Maintaining the predetermined height not only ensures its stability, but also
In order to prevent unnecessary force from acting on the spring body (3), a fixing device such as the one described in detail in the embodiment described later may be used.

In this device of the present invention, when a vehicle or the like collides with the sign board, the impact force is transmitted to the movable cylinder (2) connected to the sign board, but the direction is different from the movable cylinder (2). Most of the time is in the circumferential direction, that is, the direction in which the movable tube (2) is rotated around the support column (1), and the movable tube (2) is rotated in that direction against the elastic force of the spring body (3). I can do it. Therefore, even if such an impact force is applied, the impact force will be absorbed and alleviated by the rotation of the movable cylinder (2), and damage to each part can be prevented as much as possible, and damage caused by the external impact can be prevented. When the external force is released, the movable cylinder (2) reversely returns to its original position due to the restoring force of the spring body (3).

<Example> Examples of the present invention will be described below.

This embodiment utilizes an existing pillar (1) erected on the road, and as shown in FIGS. 3) and was held in place using an upper spacer (4) and a lower spacer/fixture (5). That is, a ring-shaped upper spacer (4) whose thickness is 5 times larger than the diameter of the spring body (3) used is attached to the inner edge of the upper end of the movable cylinder (2), while the support column (1)
) has an annular projection equal to the thickness of the upper spacer (4) on the inner edge side of a brim-shaped body whose outer edge diameter is approximately equal to the outer diameter of the movable cylinder (2). Attach the lower spacer and fixing device (5), fix the upper end of the spring body (3) to the upper spacer (4), fix the lower end of the spring body (3) to the lower spacer and fixing device (5), and make it movable. Tube (2)
The column rests on the brim-shaped body of the lower spacer/fixing device (5), and is stabilized at that height, and the upper spacer (4) and the annular protrusion of the lower spacer/fixing device (5) support the support column. The uneven distribution of the gap between (1) and the movable cylinder (2) is eliminated, and the spring body (3) is stably interposed therebetween. Furthermore, tighten and fix the two-part tension fitting (6) on the outer periphery of the movable tube (2) with the tightening bolt/nut (7).
The fastening fitting (6) is attached to the sign plate (8) by a known fitting means.
) is attached to the fastening metal retaining plate (9) welded to the back side of the
child.

The results of a test using the device of this embodiment applied to a roadside sign will be explained with reference to FIG. In other words, Fig. 4 (a) shows the sign board (8) installed in the correct direction and the truck (10) moving toward it, and from this state (a), the truck (10) The state of contact with (8) is (b). While this (b)-like Nidrak (10) continues to be in contact, the direction of the sign board (8) changes due to the rotation of the movable cylinder (2), but it does not bend or break. , then more tracks (1
0) progressed to the state shown in Figure 4 (c), it was confirmed that the sign board (8) also faced the normal direction as in Figure 4 (a).

<Effects of the Invention> As described above, according to the device of the present invention, even if external force is applied to the sign plate due to contact with a car, etc., the sign plate is connected to the movable cylinder, so that the external force is not affected. Since it can rotate in the direction of the target force, external forces can be absorbed and alleviated, and damage and bending can be prevented by simply changing the direction of the sign board.
Moreover, when the external force is released, the restoring force of the spring body returns the sign plate to its original correct direction, so that it can maintain its function as a sign.

[Brief explanation of the drawing]

FIG. 1 is an explanatory diagram of the operation of the present invention, FIG. 2 is an enlarged explanatory diagram of the main part of an embodiment of the present invention, FIG. 3 is a sectional view taken along the line ■-■ in FIG. 2, and FIG. ), (b), and (c) are explanatory diagrams of tests conducted using an apparatus according to an embodiment of the present invention, respectively. In the figure: (1) Support column (2) Movable tube (3) Spring body (8)/Sign plate (1G) L-rack patent applicant: Yasushi Sanno (and 1 other person) Agent: Noriharu Ariyoshi

Claims (1)

[Claims] 1. A movable tube that is loosely fitted onto a column erected on the road, with a coiled spring body interposed between the column and the movable tube, 1. A road sign holding device, characterized in that one end of the spring body is connected and fixed to the above-mentioned support column, and the other end of the spring body is connected and fixed to the above-mentioned movable tube to maintain it at a required height, and a sign board is attached to the movable tube.