JPH0558771U - Movable fence - Google Patents

Abstract

(57) [Summary] [Purpose] The structure should be such that it can absorb shocks even if it is a rigid fence that cannot easily get out of the fence. [Structure] A plurality of struts 1 which are erected in a tiltable manner at a lower end portion via rubber elastic bodies 11 and are provided at intervals with each other, a fence body 2 arranged between the struts, and a fence thereof. It is characterized in that it comprises a connecting body 3 connecting between the body and the support, and that the connecting body has a structure in which a tensile body 19 is embedded in a rubber-like elastic body 20 in a relaxed state.

Description

[Detailed description of the device]

[0001]

[Industrial application]

 This invention relates to a safety fence to be installed on a breakwater on the coast or a bank such as a river or a pond, and is installed especially in a place where it may be impacted by a collision of waves or driftwood during strong wind. Energy-absorbing mobile protective fences suitable for

[0002]

[Prior Art]

 The conventional general protective fence has a rigid structure, but it is easily damaged if it is installed in a place subject to the above-mentioned impact. Therefore, a structure was proposed in which struts to be erected at appropriate intervals were erected via rubber-like elastic bodies, and the struts were connected by steel chains. Examples of the tiltable support structure include Japanese Patent Application Nos. 63-32739 and 63-94127. In all of these, the lower end of the column is supported via a rubber-like elastic body and tilts when an impact is applied to absorb the impact energy, so it is less likely to be damaged than a general rigid structure.

[0003]

[Problems to be solved by the device]

 In the case of the protective fences that use tiltable columns as described above, chains are mostly used as the fences that connect the columns. This is because the columns can be tilted, so if the fences that sequentially connect the columns are rigid, and some impact force acts, for example, if some of the columns receive a tilting force. This is because the fence is apt to be damaged by a twisting force, and the fence needs to be flexible in order to avoid this. If the protective fence is made of a flexible material such as a chain, there is a problem that it is dangerous because a person can pass through the fence and can easily get out of the fence.

An object of the present invention is to provide a movable protective fence having a shock absorbing property so that it cannot be easily exposed to the outside of the fence.

[0005]

[Means for Solving the Problems]

 The movable protective fence of the present invention comprises a plurality of support pillars which are tiltably planted at the lower end portion through elastic bodies for rubber and are provided at intervals with each other, and a fence body arranged between the support pillars. And a connecting body that connects the fence and the support, the connecting body having a structure in which a tensile body is embedded in a rubber-like elastic body in a relaxed state. It

[0006]

[Action]

 Since the connecting body that connects the fence and the support is flexible, even if the fence is made of a rigid structure such as a steel pipe to prevent people from passing through, the fence and the fence are supported. The twist that the fence body receives when it receives a force such that it can be flexed between the prop and the prop that it holds, and that the guard fence is partially tilted due to collision of driftwood with the prop or the fence. The joint allows the joint deformation and prevents the fence from being deformed or damaged. Further, the impact energy at the time of collision is absorbed by the rubber-like elastic body of the connecting body and the rubber-like elastic body of the lower end of the column elastically deforming and absorbing, so that the protective fence is prevented from being damaged.

[0007]

【Example】

 A first embodiment of the present invention will be described with reference to FIGS. This protective fence is composed of a pillar 1, a fence body 2 and a connecting body 3. Although not shown, the columns 1 and the fences 2 are finally rubber-lined on their outer surfaces.

The pillar 1 is formed of a steel pipe and has a connecting body connecting portion 10 for mounting the fence 2 at an upper end portion and a proper place below, and is planted at intervals corresponding to the horizontal length of the fence 2. As shown in FIG. 3, the plant is erected so that it can be tilted through a rubber-like elastic body (urethane rubber) 11. Reference numeral 12 in the figure is a steel cup, which is integrally connected to the lower end of the column 1 together with the rubber-like elastic body 11, and this cup is embedded and fixed in the concrete. As shown in FIG. 2, the connecting body connecting portion 10 is formed by welding a short tubular member to the support column 1 and has a circular hole opened on the side where the fence 2 is provided.

The fence 2 is a structure formed by welding a steel pipe, and includes an upper edge portion 13, a lower edge portion 14, and a plurality of vertical bars 15. At both ends of the upper edge portion 13 and the lower edge portion 14, an inner hole of a steel pipe is opened, and each of them forms a coupling body coupling portion 16.

The connecting body 3 coaxially closes the connecting portions 17, 18 made of a short steel tubular member having an outer diameter fitted into the inner holes of the connecting body connecting portions 10, 16 and having one end closed. The opposite sides are arranged to face each other, and members having U-shaped bent steel rods are engaged with each other on their facing surfaces and their ends are welded to each other to form a tensile body 19. Is embedded in a rubber-like elastic body (urethane rubber) 20 provided between the coupling portions 17 and 18 in a relaxed state. In this connecting body 3, the connecting portions 17 and 18 are fitted into the inner holes of the connecting body connecting portion 10 of the pillar 1 and the connecting body connecting portion 16 of the fence 2, and the bolts 21 penetrating the portions in the vertical direction are provided. It fixes with 22 and makes the support | pillar 1 and the fence 2 the connection state.

The protective fence configured in this way surrounds the rubber-like elastic body 20 of the connecting body 3 and the lower part of the support column 1 when a load due to a collision of driftwood or the like acts on the support column 1 or the fence body 2. The rubber-like elastic body 11 is deformed and absorbs impact energy. If the support 1 and the fence 2 are directly fixedly coupled without the intermediary of the connecting body 3, if the load is such that the support 1 or the fence 2 tilts alone, the support 2 and the fence 2 are twisted. Although the twisting force is applied, the presence of the connecting body 3 allows the portion to be deformed by the twisting force, so that a large twisting force is prevented from acting on the fence 2. , Its damage is prevented.

FIG. 4 shows a second embodiment of the present invention. In the first embodiment, the supporting body 1 is provided with the connecting body connecting portion 10 and the separately formed connecting body 3 is connected with the bolts 21, but in this embodiment, the supporting body 1a is integrally formed with the connecting body 3a. This is different from the first embodiment. In this connecting body 3a, one end of a tensile body 19a is welded to the support column 1a, and the other end is welded to a joint portion 18 similar to that of the first embodiment. Therefore, the fence 2 is connected by the bolts 22 as in the first embodiment. The tensile member 19a has an additional annular member as compared with that of the first embodiment, but is essentially the same except that it is more flexible. The other structure is the same as that of the first embodiment, and therefore the illustration and description thereof will be omitted. This embodiment also has the same effect as the first embodiment.

In addition to the above, in order to connect the connecting body to the support, the connecting body connecting portion 10 as in the first embodiment is provided in the annular body fitted to the support, and the annular body is fitted to the support. Alternatively, the fence 2 may be attached thereto, or the fence 2 may be attached thereto. Alternatively, the annular body fitted to the column is provided with the connecting body 3a as in the second embodiment, and the annular body is attached to the column. You may make it fit and fix and attach the fence 2 to this. Furthermore, separately, a flange-shaped portion may be provided on both of the support and the connecting body, and between the connecting body and the fence body so as to be flange-connected.

[0014]

[Effect of the device]

 According to this invention, even if a fence is made of a rigid structure such as a steel pipe so that a person cannot pass through it, the fence can be bent between the fence and the pillar supporting the fence, and the pillar or the fence can be bent. When the protective fence receives an acting force that partially tilts the protective fence due to the collision with the driftwood, the joint body allows the torsional deformation that the fence body receives, preventing the fence body from being deformed or damaged. Since the rubber-like elastic body of the connecting body and the rubber-like elastic body of the lower end of the column elastically deform and absorb the impact energy at the time of collision, damage to the protective fence is prevented. Therefore, it is possible to obtain a protective fence that is not easily damaged by impact force even if the fence has a rigid structure that cannot pass through.

[Brief description of drawings]

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

FIG. 2 is a partially enlarged partial cutaway view of FIG.

FIG. 3 is a partially enlarged partial cutaway view of FIG.

FIG. 4 is an enlarged cross-sectional plan view of a main part of the present invention.

[Explanation of symbols]

 1 stanchion 1a stanchion 2 fence body 3 connection body 3a connection body 11 rubber-like elastic body 19 tensile body 19a tensile body 20 rubber-like elastic body 20a rubber-like elastic body

Claims (1)

[Scope of utility model registration request] 1. A plurality of struts, which are erected in a tiltable manner at the lower end portion thereof via rubber elastic bodies and are provided at intervals, respectively, a fence body arranged between the struts, and a fence body thereof. A movable protective fence, characterized in that it comprises a connecting body that connects between the pillar and the support, and that the connecting body has a structure in which a tensile body is embedded in a rubber-like elastic body in a relaxed state.