JP2958254B2 - Protective fence - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a protective fence for roadsides such as bridges and roads, for sidewalks, parks, and promenades.

[0002]

2. Description of the Related Art In a conventional protective fence, as a member commonly called a guardrail, there are a member made of steel such as a steel plate rail having a corrugated cross section, a steel pipe, a wire cable, and a member made of concrete.

[0003]

In the conventional protective fences, in the case of a protective fence made of steel, secondary damage may occur, for example, when the human body is cut or injured in a collision such as a traffic accident. Was. In the case of concrete, there is no cushioning effect, and the cushioning effect can be expected only for the deformation of the colliding vehicle.

The inventor of the present application has proposed a protective fence shown in FIGS.
I thought. That is , a support 1 constructed on a bridge, a road, or the like.
And upper and lower columnar cushioning members 2a and 2b made of wood, and the support column 1 has a protruding leg 5 for being inserted into and fixed to a mounting hole 4 on the roadside 3 of the road, and the cushioning member 2a. ,
The upper support 6 is formed of a semicircular upper support 6 provided on the upper portion of the column 1 for fixing the support 2b and a semicircular lower support 7 provided on the lower left and right portions of the column 1. To the nut 8 embedded in the body 6 and the lower receiving body 7, the cushioning material 2a,
Fixing bolts 9a and 9b penetrating the left and right ends of 2b are screwed.

[0005] Of the upper and lower cushioning members 2a and 2b, the upper cushioning member 2a has a rod-shaped reinforcing member 13 penetrated through a hollow hole 12 and the reinforcing member 13 is fixed in the upper cushioning member 2a. And fixing nuts 14 fixed to both ends of the reinforcing member, and fixing bolts 9
The fixing nut 14 is also fixed by a.

[0006] In the above, by using a cylindrical cushioning material made of wood, it is possible to avoid or reduce the impact that a passenger or a vehicle or the like receives at the time of a collision. Further, since the cushioning member has a bolted structure, maintenance can be facilitated.

Further, the reinforcing member 13 is made of a material such as a high-tensile bolt or carbon fiber, and protects the protection fence from being damaged from an excessive impact load, and can prepare for the deterioration of wood. However, passengers and vehicles are not
Impact is not sufficient, and
The scenery in the minute is not enough.

The present invention has been made in view of the above points, and has a sufficient cushioning effect on passengers and vehicles upon collision.
The purpose is to provide a road with a good view of the curve .

[0009]

As shown in FIGS. 1 and 2, a means for solving the problem according to the present invention comprises a column 1 constructed on a bridge, a road, etc., and upper and lower cylindrical cushioning members 2a, 2b made of wood. The strut 1 includes a protruding leg 5 for inserting and fixing the mounting hole 4 on the roadside 3 of the road, and the cushioning material 2.
a and 2b are formed by a semicircular upper support 6 provided on the upper portion of the support 1 to fix the support 1 and a semicircular lower support 7 provided on the lower left and right portions of the support 1; To the nut 8 embedded in the upper receiving body 6 and the lower receiving body 7,
Fixing bolts 9a, 9b penetrating through the left and right ends of a, 2b are screwed.

As shown in FIG . 2, both cushioning members 2a and 2b
Semicircular holding covers 17a and 17b are fitted to the end connecting portions.
The holding covers 17a and 17b are embedded with the support 1
It is fixed to the nut 8 by the cover fixing bolts 17c and 17d.
Is defined.

[0011]

In the above-mentioned means for solving the above problems, the metal holding cover is provided.
17a and 17b are for refreshing the design,
The cushioning materials 2a and 2b attached to the upper and lower sides of the support 1 are fixed.
Of the rust-proofed fixing bolt 9a for improving the weather resistance
It is intended. Also, as shown in FIG.
In the curve section of FIG.
Adjust the ends 2A and 2B required in the field to fit the curvature of the curve.
Even if it is set,
Good view.

[0012]

Embodiments of the present invention will be described below. First, the first embodiment will be described with reference to FIGS.
Concrete pillars 1 constructed on bridges, roads, etc.,
Upper cylindrical cushioning material 2a made of wood (for example, 180 m in diameter)
m, a cedar material having a length of 2 m) and a lower columnar cushioning material 2b (for example, a cedar material having a diameter of 120 mm).
Is a protruding steel leg 5 for inserting and fixing in the mounting hole 4 on the roadside 3 of the road, and a semicircular-shaped member provided on the upper portion of the support column 1 for fixing the cushioning materials 2a and 2b. The upper receiving body 6 and the lower receiving body 7 are formed by a semicircular lower receiving body 7 provided on the lower left and right portions of the column 1.
Fixing bolts 9a, 9b penetrating the left and right ends of the cushioning materials 2a, 2b are screwed to nuts 8 embedded in the nuts.

In order to obtain the reliability of the quality due to corrosion, the above-mentioned buffer material made of wood is subjected to a pressurized antiseptic treatment of wood with a highly safe antiseptic termite containing a quaternary ammonium salt as a main component. It is expected that the same weather resistance as steel plate guardrails can be expected, and it is excellent in softness of wood and safety in collision. The breaking load of the preservative cedar material having a diameter of 180 mm and a length of 2 m as a columnar cushioning material was 3.8 t, which was a value with a sufficient margin.

As shown in FIG. 2, a semi-cylindrical holding cover 17a is provided in each of the upper and lower gaps 16 between the upper receiving body 6 and the lower receiving body 7.
17b, the semicircular holding covers 17a, 1b are connected to the right and left connecting portions between the cushioning members 2a, 2b.
7b is fitted, and the holding covers 17a, 17b
Cover fixing bolt 17 to cover embedded nut 8
c, 17d.

Next, the construction method will be described. The mortar is filled into a plurality of mounting holes 4 provided at regular intervals on the concrete road side 3 of the road, and then the iron holes projecting from the columns 1 into the mounting holes 4. A plurality of columns 1 are fixed by inserting the legs 5. After the hardening, the wooden cushioning material 2a is put on the semicircular upper receiving body 6 provided on the upper part of the column 1, and the fixing bolt 9a is passed through the through hole 18a provided in the cushioning material 2a. The cushioning member 2a is fixed by screwing to the embedded nut 8 of the column 1. Subsequently, the wooden cushioning material 2b is placed on the semicircular lower receiving body 7 provided on the left and right of the lower portion of the column 1, and the fixing bolt 9b is passed through the through hole 18b provided on the cushioning material 2b. Is screwed into the embedded nut 8 of the column 1 to fix the cushioning material 2b. Subsequently, a semi-cylindrical holding cover 17a is inserted into the upper and lower gaps 16 of the upper receiving body 6 of the column 1, and the cover fixing bolts 17c are screwed into the cover dedicated embedded nuts 8 of the column 1 through the cover holes. The holding cover 17a is fixed.

Further, the cushioning material 2b is placed on a semicircular lower receiving body 7 provided on the left and right of the lower part of the column 1, and the cushioning material 2
The cushioning member 2b is fixed by screwing into the embedded nut 8 of the column 1 through a fixing bolt 9b through a through hole 18b provided in the column b. Subsequently, a semi-cylindrical holding cover 17b is inserted into each of the upper and lower gaps 16 of the lower receiving member 7 of the column 1, and a cover fixing bolt 17d is screwed into the embedded nut 8 of the column 1 through a cover hole. Fix the presser cover 17d.

The necessity of the metal holding covers 17a and 17b is determined by the weather resistance of the rust-proof fixing bolt 9a for clearing the design and for fixing the cushioning materials 2a and 2b mounted on the upper and lower sides of the column 1. It is intended to improve the performance. Further, as shown in FIG. 2, at the curved portion of the road, even if the wood cushioning materials 2a, 2b are cut at the required end portions 2A, 2B at the site in accordance with the curvature of the curve, the cut-off portion is formed by the holding cover. The appearance is good because it covers.

FIG. 3 shows a protection fence according to the second embodiment. The feature of the protection fence is as follows. A semicircular upper receiving body 6 and an upper cushioning material 2a provided on an upper portion of a concrete column 1 are provided.
It is located at a position (retreat position) inclined, for example, by 100 mm in a direction opposite to the road side from the positions of the semicircular lower receiving body 7 and the lower cushioning material 2b provided on the left and right of the lower portion of the column 1. Also, upper and lower cylindrical cushioning members 2a and 2b made of wood and attached to the upper receiving member 6 and the lower receiving member 7 formed on the support column 1.
(The presser cover 17a is fitted on the upper cushioning material 2a.) By making the thickness the same, only the lower portion (bumper or tire portion) of the vehicle is supported by the strut when the vehicle collides. By contacting only the lower cylindrical cushioning member 2b made of wood attached to the lower receiving member 7, damage to the car and the human body can be minimized. Other configurations and operations are the same as those of the first embodiment.

It should be noted that the present invention is not limited to the above-described embodiment, and it goes without saying that many modifications and changes can be made to the above-described embodiment within the scope of the present invention.

[0020]

As is apparent from the above description, claim 1
According to the invention, by using a cylindrical cushioning material made of wood, it is possible to avoid or reduce the impact received by a passenger or a vehicle at the time of a collision, and the cushioning material has a bolted structure. Can be easily done. In addition, the holding cover can improve the design and improve the weather resistance of the rust-proofed fixing bolts for fixing the cushioning material attached to the top and bottom of the support, and also, in the curved part of the road, wood Even if the necessary end portion of the cushioning material is cut at the site according to the curvature of the curve, the cut portion is covered by the holding cover, so that the appearance is good.

According to the second aspect of the present invention, when the vehicle collides, only the lower portion of the vehicle comes into contact with only the lower cylindrical cushioning member made of wood attached to the lower support of the column. It can minimize damage to cars and human bodies.

[Brief description of the drawings]

FIG. 1 is a perspective view of a first embodiment of the present invention.

FIG. 2 is a plan view of the first embodiment with a curved road.

FIG. 3 is a perspective view of the second embodiment.

FIG. 4 is a perspective view of a proposal example different from the above.

FIG. 5 is a front view of the same example in which fixing nuts are attached to both ends of the reinforcing member of the proposed example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Support 2a, 2b Buffer material 3 Roadside 4 Mounting hole 5 Leg 6 Upper receiving body 7 Lower receiving body 8 Embedded nut 9a, 9b Fixing bolt 16 Gap 17a, 17b Holding cover 17c, 17d Cover fixing bolt

Claims (2)

(57) [Claims] 1. A strut fixed to a road or the like, and upper and lower cylindrical cushioning members made of wood, and the strut is provided on a semicircular upper portion provided at an upper portion for fixing the cushioning material. The receiving body is provided with a semicircular lower receiving body at a lower portion, and fixing bolts penetrating right and left ends of the cushioning material are screwed into nuts embedded in the upper receiving body and the lower receiving body. A semi-cylindrical push is provided at both ends connecting portions of the cushioning materials.
Cover is fitted, and the presser cover is fixed to the support post.
A protective fence that is fixed by bolts . 2. A strut fixed to a road or the like and a timber
It consists of a cylindrical cushioning material below, and the strut is
Semicircular upper support provided on the upper part to fix the material
Body and a semicircular lower support at the bottom
And a nut embedded in the upper receiving body and the lower receiving body
Then, fixing bolts penetrating the right and left ends of the cushioning material are screwed
The upper receiving body and the upper cushioning material are
From the position of the cushioning material below and below the road side.
A protective fence characterized by being placed in a different position .