JPH0449219Y2 - - Google Patents

Description

[Detailed explanation of the invention] A. Purpose of the invention (1) Industrial application field The present invention relates to a road sign pole as a sign support installed in a road median strip, etc.

(2) Prior Art Generally, road sign poles are known that are erected as sign posts on the median strip or road shoulder to ensure safe driving by drivers during the snowy season. This type of road sign pole has one end of a hollow support made of aluminum, steel, or plastic embedded in the road, and the other end stands up on the snow when it snows.

By the way, when it snows, a snow plow is used to remove snow from the road surface. However, conventional road sign poles are damaged when a snow plow hits them. Therefore, snow removal work is performed while avoiding damage to the poles, so the average work speed is only 7 to 8 km/h, resulting in frequent traffic jams and other troubles such as rear-end collisions between vehicles. I was afraid.

As an invention to solve this problem, Japanese Patent Application Laid-Open No. 61-126206 and Japanese Patent Application Laid-Open No.
There is an invention described in Publication No. 61-130506. These poles are constructed so that they can be bent in the middle, so that if a snow plow or the like hits the pole, the pole can bend in the middle and then return to its upright position.

(3) Problems to be solved by the invention The pole according to the above invention is troublesome to assemble, and the structure of the bending part is complicated.
It is not very sturdy and may break during repeated snow removal operations during the snowy season.

B. Structure of the invention (1) Means for solving the problem A road sign pole consists of two poles and a coil spring interposed between the two poles to give them a tendency to repel each other. , the compression coil spring and a connecting means coaxially connecting the two poles, the connecting means having a connecting member and at least one spring, and the connecting member having a flexible portion. and the other end is connected to the other pole, and the spring is interposed between one end of the connecting member and this one pole within one pole to tend the two poles to approach each other. Configure it to do so.

(2) Action Fix one side of the pole with respect to the ground. When the other pole is hit by the snowplow of a snowplow, it swings and bends relative to the other pole. After the snow plow passes, the other pole returns to its upright position.

(3) Embodiment FIG. 2 is a longitudinal sectional view showing the main parts of the present invention. The road sign pole 4 has two poles 51,
52, a compression coil spring 6, and a connecting means 7.

The poles 51 and 52 each have a hollow body 5.
3,55 and holders 54,56. The main bodies 53 and 55 are made of aluminum, steel, plastic, or the like. The holder has a through hole 54 on its axis.
a, 56a is formed, and a collar 54 is formed at the end thereof.
b, 56b are formed. The holder fits into the main bodies 53, 55, and the collar abuts the end of the main body.

The compression coil spring 6 consists of an inner coil spring A and an outer coil spring B located coaxially with the inner coil spring A and wound in the opposite direction to the inner coil spring A and having a larger diameter than the inner coil spring B. This produces the following effects. That is, (1) resilience is improved; (2) Even if one spring is damaged, the other spring can take care of it, increasing safety. (3) If there is no inner spring, when the pole bends, the outer spring and the wire will come into contact at one point and be worn out, but if the inner spring is provided, there will be multiple points of contact between the spring and the wire. , it can reduce wear and tear on springs and wires by distributing the load. This compression coil spring 6 is interposed between holders 54 and 56, and covered with a plurality of ring-shaped covers 8 to prevent it from coming into contact with water droplets. Pole 5 by compression coil spring 6
1 and 52 are given a tendency to repel each other.

The connecting means 7 includes a connecting member 71 and a spring 72,
It consists of 73.

The connecting member 71 has a flexible portion 76 made of wire, and the holders 54 and 56 of this wire
The part between them is covered with a nylon tube 9 so as not to come into contact with water droplets. Further, each end portion 74, 75 of the connecting member 71 includes a screw rod 74a, 75a fixed to the wire 76, a washer 74b, 75b that fits into the screw rod, and a nut that is screwed onto the screw rod to prevent the washer from coming off. It consists of 74c and 75c.

The springs 72 and 73 are compression coil springs, and are composed of an inner coil spring A and an outer coil spring B, which is located coaxially with the inner coil spring A, is wound in the opposite direction, and has a larger diameter than the inner coil spring B. Spring 72, 73
are the holders 54, 56 and the washer 74b, respectively.
75b, giving the poles 51 and 52 a tendency to approach each other.

The road sign pole 4 can be assembled as follows. First, the compression coil spring 6 covered with the cover 8 is interposed between the holders 54 and 56. The wire 76 is inserted through the through holes 54a, 56a and the compression coil spring 6, and a screw rod 74 is attached to each end of the wire 76.
Fix a and 75a. Next, the screw rods 74a, 7
After screwing the coil springs 72, 73 and washers 74b, 75b onto the nuts 74 and 5a, respectively,
c and 75c and tighten. After assembling the bent portion in this way, the holder 54,
56 are inserted into the main bodies 53 and 55, respectively, and fixed with adhesive, screws, rivets, or the like. Thereby, the connecting means 7 coaxially connects the compression coil spring 6 and the poles 51 and 52.

Furthermore, if fluorescent paint is applied to the pole 52 or to the poles 52 and 51, visibility becomes easier even at night.

Pole 51 can be directly buried in the ground (3rd
right), inserted into the pipe 18 of the guardrail (center of Fig. 3), or inserted into the pipe 19 buried in the ground.
(Figure 3, left) and install road sign poles in median strips, etc. This will be approximately 1m above the ground.

As shown in FIG. 1, during snow removal, a snow wall 3 such as a median strip of a road is broken down by a snow plow 2 of a snowplow vehicle 1. The road sign pole 4 is a snow plow 2
When it comes into contact with the pole 52, it bends as shown by the solid line. After Snow Plow 2 passes,
The pole 52 is restored to its upright position.

C. Effects of the invention According to the invention, the structure is simple and easy to assemble, and the compression coil springs that make up the bending section are supported at both ends by each pole, so a strong compression coil spring can be used there. It becomes possible to
Therefore, it is possible to provide a road sign pole with a solid structure that is extremely strong against repeated bending loads, and the snow adhering to the pole falls off when it swings when restoring, maintaining the sign's effectiveness. .

[Brief explanation of the drawing]

FIG. 1 is a perspective view, FIG. 2 is a longitudinal sectional view, and FIG. 3 is a sectional view. 2... Snow plow, 4... Road sign pole, 6... Compression coil spring, 7... Connection means, 9
...Nylon tube, 51, 52...Paul,
54, 56... Holder, 54a, 56a... Through hole, 54b, 56b... Tsuba, 71... Connection member,
72, 73... Spring, 74a, 75a...
Spiral rod, 74b, 75b...Washer, 74c, 75c
...Natsuto, 76...Flexible part.

Claims (1)

[Claims for Utility Model Registration] (1) Two poles 51 and 52, a compression coil spring 6 interposed between the two poles and giving them a tendency to repel each other, and the compression coil spring and a connecting means 7 coaxially connecting the two poles, the connecting means 7 having a connecting member 71 and at least one spring 72, and the connecting member 71
has a flexible portion 76 and the other end 75 is connected to the other pole 52, the spring 72
is interposed between one end 74 of the connecting member 71 and this one pole 51 within one pole 51 to give the two poles 51 and 52 a tendency to approach each other. Paul 4. (2) The number of springs is two, and the remaining spring 73 is interposed between the other end 75 of the connecting member 71 and the other pole 52 within the other pole 52, and the remaining spring 73 is interposed between the other end 75 of the connecting member 71 and the other pole 52. The road sign pole according to claim 1, wherein the above-mentioned connection is made and the two poles 51 and 52 have a tendency to approach each other. (3) The one pole 51 has a hollow main body 53;
A through hole 54a is formed on the axis and a flange 54b is provided at the end.
The holder 54 is fitted into the main body 53, the collar 54b abuts the end of the main body, and the flexible portion 76 of the connecting member 71 is connected to the through hole 54a and The one end 74 of the connecting member 71 is inserted through the compression coil spring 6, and includes a screw 74a fixed to the flexible portion 76, a washer 74b that fits into the screw, and a washer 74b that is screwed into the screw to prevent the washer from coming out. The road sign pole according to claim 1, wherein the spring 72 is a compression coil spring and is interposed between the holder 54 and the washer 74b. (4) The other pole 52 has a hollow main body 55;
and a holder 56 having a through hole 56a formed on the axis and a holder 56 formed at the end, the holder 56 fitting into the main body 55, the collar 56b coming into contact with the end of the main body, and the connection. The flexible portion 76 of the member 71 is inserted into the through hole 56a, and the other end 75 of the connecting member 71 has a screw rod 75a fixed to the flexible portion 76, a washer 75b screwed onto the screw rod, and a screw screw on the screw rod. The spring 73 is a compression coil spring and is interposed between the holder 56 and the washer 75b. The road sign pole described in item 3. (5) The compression coil spring 6 and the spring 7
2 and 73 are respectively comprised of an inner coil spring A and an outer coil spring B located coaxially with the inner coil spring A and wound in the opposite direction to the inner coil spring B, which has a larger diameter than the inner coil spring B. , the road sign pole according to item 3 or 4. (6) The road sign according to claim 1, 2, 3, 4 or 5, wherein the compression coil spring 6 is covered with a plurality of ring-shaped covers 8. pole. (7) The poles 51 and 52 are coated with fluorescent paint.Claims 1 and 2 of the utility model registration claim
The road sign pole according to item 3, item 4, item 5, or item 6. (8) The flexible portion 76 is made of wire and covered with a nylon tube 9 between the two poles.
The road sign pole according to item 1, item 2, item 3, item 4, item 5, item 6, or item 7.