JP2000186311A - Guard fence - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a guard fence which can absorb an impact flexibly with a tensile force of ropes and also can cover a gap between the ropes with fences, which enables easy adjustment of a collision strength of the fences by varying the number of stringers constituting the fences and the size of panels and which not only can prevent a human body from being damaged by strong impact, due to easy decomposition of the fences, but also is very convenient since the fences can be assembled at the site. SOLUTION: This guard fence is constructed by fitting fences 3 to ropes 2 which are stretched with prescribed tension between supports provided at a prescribed space between. These fences 3 are constituted of U-shaped stringers 4a (4b) each of which holds the rope 2 fitted in the base part thereof and extends along the rope 2 and of panels fitted in ear-shaped projecting parts and groove parts formed alternately in the stringers 4a (4b), so that they can absorb impact properly.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a guard fence, and more particularly to a guard fence having a long stringer and a fence comprising a panel fitted to the stringer.

[0002]

2. Description of the Related Art Hitherto, it has been known that a guardrail formed by stretching a rope or a metal plate-like rail between pillars spaced apart from each other is provided at a median strip or a road end of an expressway.

[0003]

However, in a conventional guardrail using a rope, a large gap is formed between the upper and lower ropes, and a vehicle or the like may jump out of the gap. In this case, when the vehicle collides, the vehicle is seriously damaged and has a drawback that human lives are harmed.

The present invention has been made to eliminate the above-mentioned disadvantages.

[0005]

A guard fence according to the present invention comprises a column provided at an appropriate interval, a vertically separated rope stretched between the columns by an appropriate tension, and a rope extending along the rope. A U-shaped stringer extending along the rope in which the rope is fitted at its base, and ear-shaped protrusions and grooves alternately formed on the stringer. It comprises an ear-shaped projection and a panel fitted to the ear.

Further, the guard fence of the present invention comprises a support provided at an appropriate interval, a vertically separated rope stretched between the support by an appropriate tension, and a fence arranged along the rope. Wherein the rope comprises first and second rope elements spaced apart from each other in the front and rear, and the fence extends along the rope with the first rope element fitted into its base. A first U-shaped stringer, ear-shaped protrusions and grooves alternately formed on the first stringer, a panel fitted to the ear-shaped protrusions and ears, and the first A second U-shaped stringer having a lug portion and a lug portion fitted into the groove portion of the stringer, and the second rope element being fitted into the base portion thereof. And

[0007] The guard fence of the present invention comprises a support provided at an appropriate interval, a vertically separated rope stretched between the support by an appropriate tension, and an alternately provided rope along the rope. A plurality of fences arranged back-to-back, a sound absorbing material filled between the fences, and the ropes comprising first and second rope elements arranged apart from each other in front and rear, and each of the fences A first extending along the rope in which each of the rope elements is fitted into its base.
U-shaped stringer, ear-shaped protrusions and grooves alternately formed on the first stringer, a panel fitted to the ear-shaped protrusions and ears, and the first stringer via the panel. And a second U-shaped stringer having a groove and a lug fitted into the groove, respectively.

[0008] The fence includes a plurality of fence elements spaced apart from each other in a direction along the rope.

The above-mentioned panel is composed of a panel element which fits into a lug-like panel or a stringer's lug and groove, respectively, and has a number of small holes for silencing.

[0010]

Embodiments of the present invention will be described below with reference to the drawings.

In the present invention, as shown in FIG. 1A, for example, a pillar 1 made of concrete or the like having a height of 1.2 m, for example, is planted every 30 m, and vertically separated from each other. Then, the rope 2 such as a wire is tensioned by a turnbuckle or the like and stretched with an appropriate tension, and five fences 3 having a length of 5 m and a height of 70 cm, for example, are separated from each other by, for example, 75 cm along the rope 2. And place it.

The fence 3 may be continuous as shown in FIG. 1B.

The rope 2 is, for example, 7 cm apart from each other before and after.
It is constituted by two first and second rope elements 2a and 2b which are spaced apart and arranged in parallel.

Each of the fences 3 includes a first stringer 4a having a U-shaped cross section extending along the rope and having the first rope element 2a fitted into a base thereof as shown in FIGS. The ear-shaped protrusions 5 and the grooves 6 having a predetermined length alternately formed on the first stringer 4a, and the shape fitted to the ear-shaped protrusions 5 and the grooves 6, for example, 5
A waved aluminum or plastic corrugated panel 7 formed in a wave shape that is continuous and a groove and an ear-shaped protrusion fitted into the ear-shaped protrusion 5 and the groove 6 of the first stringer 4a via the panel 7 , Each having at its base the second
Second stringer 4 into which the rope element 2b is fitted.
b.

As shown in FIG. 6, instead of using the corrugated panel, individual panels 8 having both ends curved in an arc may be fitted into the ear-shaped projections 5 and the grooves 6 of the stringer 3. . In addition, the U-shaped stringer 4
The bases of a and 4b are preferably arcuate to match the rope 2.

As shown in FIGS. 7 and 8, the first and second stringers 4a and 4b and the panel 7 or 8 are used.
Is closed with a U-shaped end cap 9,
Preferably, the upper and lower surfaces of the panel 7 or 8 are closed by the flat plate 10.

In some applications, the second rope 2 may be used.
b and the second stringer 4b may be omitted.

FIG. 9 shows another embodiment of the present invention. In this embodiment, two fences 11 constructed as described above are arranged back to back, and a hollow portion formed between the two is provided. For example, it is filled with a sound absorbing material 12 such as glass wool or foam to make the fence a very reinforced sound insulation wall.

FIG. 10 shows yet another embodiment of the present invention, where the panels of the fence of FIG. 9 are configured to face in the same direction as each other, while this embodiment is in the opposite direction. And the operation and effect are the same.

[0020]

As described above, according to the guard fence of the present invention, the impact can be softly absorbed by the tension of the rope, the gap between the ropes can be closed by the fence, and the collision strength of the fence constitutes the fence. It can be easily adjusted by changing the number of stringers and the size of the panel.In addition to the fact that the fence can be easily disassembled against strong impact to prevent harm to the human body, the fence can be assembled on site. There are great benefits such as being extremely convenient.

[Brief description of the drawings]

FIG. 1A is a perspective view of a guard fence of the present invention.

FIG. 1B is a perspective view showing another embodiment of the guard fence of the present invention.

FIG. 2 is a front view of a fence in the guard fence of the present invention.

FIG. 3 is a plan view of the fence shown in FIG. 2;

FIG. 4 is a side view of the fence shown in FIG. 2;

5 is an enlarged view of a part of the fence shown in FIG.

FIG. 6 is an enlarged view of a part of a fence according to another embodiment of the present invention.

FIG. 7 is a plan view of a fence according to another embodiment of the present invention.

FIG. 8 is a side view of a fence according to another embodiment of the present invention.

FIG. 9 is a sectional view of a fence according to still another embodiment of the present invention.

FIG. 10 is a sectional view of a fence according to still another embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Prop 2 Rope 2a Rope element 2b Rope element 3 Fence 4a Stringer 4b Stringer 5 Ear-shaped protrusion 6 Groove part 7 Corrugated panel 8 Panel 9 End cap 10 Flat plate 11 Fence 12 Sound absorbing material

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[Procedure amendment]

[Submission date] November 4, 1999 (1999.11.
4)

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Claims

[Correction method] Change

[Correction contents]

[Claims]

[Procedure amendment 2]

[Document name to be amended] Statement

[Correction target item name] 0005

[Correction method] Change

[Correction contents]

[0005]

A guard fence according to the present invention comprises a column provided at an appropriate interval, a vertically separated rope stretched between the columns by an appropriate tension, and a rope extending along the rope. A U-shaped stringer extending along the rope in which the rope is fitted into its base, and an ear-shaped protrusion and a groove formed alternately on the stringer; characterized in that it comprises more ear-like projections and the panel fitted in the groove portion.

[Procedure amendment 3]

[Document name to be amended] Statement

[Correction target item name] 0006

[Correction method] Change

[Correction contents]

Further, the guard fence of the present invention comprises a support provided at an appropriate interval, a vertically separated rope stretched between the support by an appropriate tension, and a fence arranged along the rope. Wherein the rope comprises first and second rope elements spaced apart from each other in the front and rear, and the fence extends along the rope with the first rope element fitted into its base. a first U-shaped stringer, and the first stringer ear peaks and troughs which are alternately formed on a panel fitted in the ear peaks and troughs, the first through the panel A second U-shaped stringer having a lug portion and a lug portion fitted into the groove portion of the stringer, and the second rope element being fitted into the base portion thereof. And

[Procedure amendment 4]

[Document name to be amended] Statement

[Correction target item name] 0007

[Correction method] Change

[Correction contents]

[0007] The guard fence of the present invention comprises a support provided at an appropriate interval, a vertically separated rope stretched between the support by an appropriate tension, and an alternately provided rope along the rope. A plurality of fences arranged back-to-back, a sound absorbing material filled between the fences, and the ropes comprising first and second rope elements arranged apart from each other in front and rear, and each of the fences But a first extending along the rope in which each of the rope elements is fitted into its base.
U-shaped stringer, ear-shaped protrusions and grooves alternately formed on the first stringer, a panel fitted into the ear-shaped protrusions and grooves, and It is characterized by comprising an ear-shaped protrusion of the first stringer, and a second U-shaped stringer having a groove fitted into the groove and an ear-shaped protrusion.

Claims (7)

[Claims] 1. A strut provided at an appropriate interval, a vertically separated rope stretched between the struts with an appropriate tension, and a fence disposed along the rope. But a U-shaped stringer extending along the rope with the rope fitted into its base,
A guard fence comprising: ear-shaped protrusions and grooves formed alternately on the stringer; and a panel fitted to the ear-shaped protrusions and ears. 2. A strut provided at an appropriate interval, a vertically separated rope stretched between the struts with an appropriate tension, and a fence arranged along the rope,
A first U that extends along the rope with the first rope element fitted at its base, the first and second rope elements being spaced apart from each other in the front and back. A stringer, an ear-shaped protrusion and a groove formed alternately on the first stringer, a panel fitted to the ear-shaped protrusion and the ear, and an ear of the first stringer via the panel. A guard fence comprising: a second U-shaped stringer having a protruding portion, a groove portion to be fitted in the groove portion, and an ear-shaped protruding portion, wherein the second rope element is fitted into a base portion thereof. . 3. A pillar provided at an appropriate interval, a vertically separated rope stretched between the pillars with an appropriate tension, and a plurality of ropes arranged along the rope and arranged back to back. Fence, comprising a sound absorbing material filled between the fences, the rope comprises first and second rope elements arranged separately from each other in the front and rear, each fence, each fence A first U-shaped stringer extending along the rope fitted to the base, ear-shaped protrusions and grooves alternately formed on the first stringer, and fitting to the ear-shaped protrusions and ears And a second U-shaped stringer having a groove and an ear-shaped projection fitted into the ear-shaped projection and the groove of the first stringer via the panel. fence. 4. The guard fence according to claim 1, wherein the fence comprises a plurality of fence elements spaced apart from each other in a direction along the rope. 5. The guard fence according to claim 12, wherein the panel is a wavy panel. 6. The guard fence according to claim 1, wherein said panel comprises a panel element fitted to said ear-shaped projection and a panel element fitted to said groove. 7. The panel according to claim 1, wherein said panel has a number of small holes for silencing.
Guard fence as described.