JPH07301032A - Protective fence and reinforcing device therefor - Google Patents

Abstract

PURPOSE:To prolong the durability of a protective fence by reinforcing posts. CONSTITUTION:In a protective fence in which a plurality of posts 1a are erected at every certain distance and a plurality of cables 2 are stretched with a vertical distance at the front face of the posts. Elastically supporting reinforcing frames 5 provided with a plurality of right and left rinds 5b are fitted to the posts with a vertical distance, from the rear side. The right and left connection rods 6a joining between the right and left rings of respective elastically supporting reinforcing frames are parallelly arranged with respective distances at the front right and left sides of the posts. Respective right and left sides of cables of the post part are elastically connected to the right and left connection rods. A metallic net 8 is spread over the whole face on the cables attached to the posts. A plurality of elastically supporting reinforcing frames composed of a main fitted part 5a corresponding to the cross section shape of the posts and the right and left rings connected to both sides of the main fitted part 5a and fitted in the posts, the right and left connection rods parallelly disposed with a distance at both sides of the posts, connecting between the front part of the right and left rings of respective elastically supporting reinforcing frames, and a plurality or cloth-connecting metal tools 7 joining respective cables to the right and left connection rods, are provided in the protective fence.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a guard fence or guard cable arranged in a parking lot, a road or the like, a protection generally used as a rock fence arranged on a slope where there is a risk of falling rocks, snow, etc. The present invention relates to a fence and its reinforcement device.

[0002]

2. Description of the Related Art Conventionally, in parking lots, roads and the like, columns of various types of steel and steel pipes are built at appropriate intervals, and a plurality of cables are vertically spaced in front of the columns of columns.
The guard fence is mounted by using metal fittings such as bolts and stretched (if necessary, a cushioning bracket is inserted in front of each strut), and a car cable is buffered and received by a strong cable group that has appropriate elasticity. Protective fences such as rock fences, which are provided with protective fences such as guard cables, and on the slopes where there is a risk of falling rocks or snow, etc. Is provided.

Further, in the above-mentioned protective fence, at a portion which changes up and down or front (or rear) as shown in FIG. 3, for mounting a U bolt or the like arranged on the intermediate support column a of this changing portion. Each cable b is supported in a bent state by the metal fitting c, and the mounting metal fitting c directly receives a strong tensile load T of each cable b generated at the time of a collision of an automobile or a rock fall, and is damaged by the impact. Since it is easy to do so, as a reinforcement measure, the size of the mounting bracket c is increased or the mounting bracket c is added to the left and right pairs, and if necessary, a space is provided on the left and right of the intermediate support column a as shown in FIG. A holding member e is provided, and each cable b is connected to the space holding member d by a mounting metal fitting c (d in the figure is a wire mesh stretched on the front side of the cable b). It should be noted that the mounting means for inserting each cable into the wave hole of the H-shaped steel strut does not require a mounting bracket, but the cable is easily damaged locally at the wave hole portion during the above-mentioned tensile load, and there is a risk of breakage. There is a problem with sex.

[0004]

In the conventional protective fence, any of the above-mentioned reinforcing measures of the cable mounting portion in the intermediate support column of the vertical and / or front / rear change portion can effectively reduce the strong impact received from the cable. However, there is a problem in that there is a limit to the function of preventing damage to the cable mounting portion of the intermediate column, and repairing the same requires labor.

The present invention was developed in order to address the above-mentioned problems, and the purpose thereof is to effectively support the left and right sides of each cable in the intermediate strut portion. It is intended to provide a protective fence for falling rocks, snowfall, etc., which is improved in strength and reliability of the cable tensioning of the intermediate support as well as the durability of the protective fence by reinforcing it.

[0006]

SUMMARY OF THE INVENTION According to the present invention, a plurality of struts are built at intervals, and a plurality of cables are mounted on the front surface of the stanchions at vertical intervals and stretched, or the entire surface of the cable group. In the guard fence in which the wire mesh is stretched over, a plurality of left and right ring reinforcement frames with left and right ring parts are fitted to the intermediate column at vertical intervals, and the space between the left and right ring parts of each reinforcement frame is fitted. Reinforce the connected left and right connecting rods by arranging them in parallel with the left and right sides of the front side of the intermediate support column and connecting the left and right connecting rods to the left and right sides of each cable of the intermediate support column to elastically support them. The device can be easily installed, and the left and right sides of each cable are connected and elastically supported to effectively buffer and reduce the impact received from the cable, and the cable's tension strength, reliability and protection fence The durability of is improved.

[0007]

[Operation] A plurality of columns are installed at intervals, and a plurality of cables are attached to the front of the group of columns with a vertical interval and stretched, or a wire fence is stretched over the entire surface of the group of cables. , If a plurality of left and right ring support reinforcement frames with ring parts are fitted to the middle support column with a vertical interval, the left and right connection rods connecting the left and right ring parts of each support frame will be the middle support column. Are placed in parallel on the front left and right of
By connecting the left and right connecting rods to the left and right sides of each cable of the middle strut and elastically supporting them, the middle strut is easily incorporated as a reinforcing device, and the left and right ring parts and the left,
The elastic support mechanism on the left and right of each cable consisting of the right connecting rod effectively enhances the disposition strength of each cable near the intermediate strut, effectively buffers and reduces the impact received from the cable, and Prevents damage to the cable arrangement mechanism and enhances the durability of the protective fence.

[0008]

1 and 2 show an embodiment of the present invention. In the figure, 1 is a support pillar (intermediate support pillar) that is built with an appropriate interval, and 1a is an intermediate support pillar at the vertical or front-rear change portion of the protective fence,
Reference numeral 2 is a cable that is attached to the front surface of each of the columns and stretched, 3 is a fitting for attaching the cables to the columns, and 5 is a fitting main portion 5
a, a left and a right ring portion 5b, a support frame 6a,
Reference numerals 6b are left and right connecting rods and rear connecting rods, and 7 is left connecting the left ring portions 5b, the right ring portions 5b, and the fitting main body portions 5a of the respective elastic support frames with vertical intervals. Cross connecting metal fittings for connecting the cable 2 to the right connecting rod, 8
Is a wire mesh stretched on the front surface of the cable group, 9 is a wire for tensioning the wire mesh 8, and 10 is a reinforcing device.

In the illustrated first embodiment, a plurality of columns 1 (1
a) is installed at a certain interval, and a plurality of cables 2 are attached to the front side of the group of columns 1 (1a) with a vertical interval and attached, and a plurality of left and right ring parts are attached to the intermediate column 1a. The left and right connecting rods 6a, which connect the left and right ring portions 5b of the respective elastic support frames 5 by fitting the elastic support frames 5 with 5b from the rear with a vertical interval, are connected to the front left and right of the intermediate support column 1a. Are arranged in parallel with each other, and the left and right connecting rods 6a are connected 7 to the left and right sides of each cable 2 of the intermediate support column 1a to form a protective fence.

The second embodiment is a protective fence reinforcing device characterized in that in the aforementioned protective fence, a wire group 8 is stretched over the entire surface of a cable group 2 attached to a column 1 (1a) group. .

Further, the main body 1a for fitting corresponding to the cross-sectional shape of the intermediate support column 1a and the left and right ring portions 5b connected to both sides of the main body 5a for mounting are connected to the intermediate support column 1a with a vertical interval. Multiple support frames 5 and each support frame 5
The left and right ring parts 5b are connected between the front parts of the middle part 1a.
Of the first or second embodiment, which is provided with left and right connecting rods 6a which are arranged in parallel with each other on the left and right sides and a plurality of cross connecting fittings 7 which connect each cable 2 to the left and right connecting rods 6a. This is the protective fence reinforcing device 10 of the embodiment.

More specifically, the pillar 1 (intermediate pillar 1a) is made of various types of steel such as H-shaped steel (illustrated example) and grooved steel corresponding to the use and scale of the protection fence, square steel pipe, steel pipe, and steel pipe. ,
Furthermore, it will be built deep in the ground by using concrete columns and the like with concrete foundations. The cable 2 uses various wire ropes corresponding to the use and scale of the protective fence, and the tough wire rope having appropriate elasticity elastically receives the automobile, rockfalls, and the like. Mounting bracket 3
For example, U bolts, nuts, etc. as shown in the figure are used. As the wire net 8, a suitable mesh material having various strengths corresponding to the use and scale of the protective fence is applied.

The reinforcing device 10 is made of a steel rod, a steel pipe, a strip-shaped steel plate or the like having an appropriate strength, and has a plurality of left and right ring portion 5b-attached elastic support frames 5, and left and right connecting rods. 6a, a rear connecting rod 6b, a plurality of cross connecting fittings 7 and the like, and the elastic support frame 5 is formed into a U-shaped or circular shape corresponding to the cross-sectional shape of the intermediate support column 1a.
It has a structure in which left and right ring portions 5b for elastically supporting the cables 2 on the left and right sides of the intermediate support column 1a with appropriate strength are provided at both ends thereof. The left and right connecting rods 6a are a left and right pair of a left connecting rod 6a welded to the front side of the plurality of left ring portions 5b and connected at appropriate vertical intervals, and a plurality of right ring portions 5b. The front and left sides are arranged in parallel at appropriate intervals. The rear connecting rod 6b is
Each fitting main body portion 5a is welded and connected at appropriate vertical intervals. The cross connecting fitting 7 is, for example, two U bolts 7a and a plate 7b with a fitting groove for the cable 2 as shown in the figure.
A pair of U-bolts 7a fitted to the left and right connecting rods 6a are fitted into the plate 7b which is in contact with the cable 2 and tightened with the nuts 7c to connect the left and right connecting rods 6a. Connect each cable 2 to the cross.

In the illustrated protective fence, a plurality of struts 1 (intermediate struts 1a) are built up with an appropriate interval, and a plurality of cables 2 are attached to the front side of the group of struts 1 (1a) (the front surface of FIG. 1A, 1B) (on the lower side of FIG. 1B), the metal fittings for mounting (U bolts, etc.) 3 are provided so as to be stretched at appropriate vertical intervals, and the reinforcing device 10 is mounted on the intermediate support column 1a at the changing portion.

In the above-mentioned reinforcing device 10, a plurality of elastic support frames 5 are arranged at appropriate vertical intervals, and a left connecting rod 6a is vertically provided between the front parts of the respective left ring portions 5b of the elastic support frame 5 group. , And the right connecting rods 6a are vertically welded between the front portions of the right ring portions 5b to connect them, respectively, and if necessary, the connecting rods 6b are also welded vertically to connect the fitting main body portions 5a. Then, it is preassembled, and the assembled reinforcing device 10 is fitted into the intermediate support column 1a. That is, when each fitting main part 5a is fitted from the rear of the intermediate support column 1a (upper side in FIG. 1B), the left and right ring parts 5 are provided on the left and right sides of the intermediate support column 1a.
b is arranged, the left and right connecting rods 6a are the intermediate support columns 1a.
Are arranged in parallel at appropriate intervals on the left and right sides of the front part of the cable, and when the cables 2 are respectively tightened and connected to the left and right connecting rods 6a by the cross connecting metal fittings 7, the intermediate support column 1
Each cable 2 in the vicinity of a is mounted and held by a mounting bracket 3, and the left and right sides of the cable 2 are formed of a left ring, a right ring part 5b, and a left and right connecting rod 6a. It is elastically supported by the support mechanism and is retained, and the intermediate support column 1a
It will be placed horizontally along the front side of. In addition, the elastic support mechanism appropriately elastically supports the left and right sides of each cable 2 near the intermediate support column 1a to increase the support strength and share the mounting metal fitting 3
In addition to reducing the cable supporting load, the impact (tensile load T) received from the cable 2 is effectively relaxed, and the impact received by the mounting fitting 3 is significantly reduced and its damage is prevented. Therefore, the durability of the protective fence is also enhanced and the maintenance and management thereof is facilitated.

The wire mesh 8 has wires 9 installed along the upper and lower edges thereof and is arranged over the entire surface of the group of cables 2 and is stretched by connecting each cable 2 with an appropriate interval. The wire netting 8 is provided, and due to its moderate elasticity, shock is further reduced and protection performance is further enhanced.

In the above-mentioned embodiment, the reinforcing device 10 is incorporated in the intermediate columns at the changing portions above and below and in the front and rear of the protective fence, but it can be easily incorporated and removed in other intermediate columns as required. is there. If necessary, a flowerpot may be attached to each of the left and right ring portions 5b of the reinforcing device 10, and an advertisement, a bulletin board, or the like may be provided. In addition to the illustrated example, the invention is also applied to a guard rail in which a buffer bracket is arranged on the front surface of the intermediate support column and a cable is directly attached to the front side of the buffer bracket, if necessary. This is dealt with by arranging the front portions of the left and right ring portions of the support reinforcement frame on the front side so as to correspond to the arrangement positions of the cables.

[0018]

As described above, according to the present invention, a plurality of struts are built at intervals as described above, and a plurality of cables are mounted on the front surface of the stanchions with an up-and-down interval and stretched, or the cable group In a fence with a wire mesh over the entire surface, a plurality of left and right ring support reinforcement frames with left and right ring parts are fitted to the middle column at vertical intervals, and between the left and right ring parts of each reinforcement support frame. By arranging the connected left and right connecting rods in parallel with the front left and right sides of the intermediate strut at intervals, and connecting the left and right cables of the intermediate strut part to the left and right connecting rods to elastically support them. Reinforcing devices can be easily arranged, and by the left and right brace of each cable, the supporting load of each cable of the intermediate support column is shared, and the impact received from each cable is effectively buffered and reduced. With cable proof strength and reliability of intermediate stanchions It has significantly improved the durability of the Mamorusaku.

[Brief description of drawings]

FIG. 1 is a front view (A) and a plan view (B) of an intermediate strut portion showing an embodiment of the present invention.

FIG. 2 is an enlarged front view of the main part of FIG.

FIG. 3 is a front view (A) and a plan view (B) of an intermediate strut portion showing a conventional example.

FIG. 4 is a front view of an intermediate strut portion showing a conventional reinforcing example.

[Explanation of symbols]

 1 Strut 1a Intermediate strut 2 Cable 3 Mounting bracket 5 Reinforcement support frame 5a Fitting main body (reinforcement support frame) 5b Left, right Reinforcement support (retention support frame) 6a Left, right connection rod 7 Cross connection metal fitting 8 Wire mesh

Claims (3)

[Claims] 1. A protective fence in which a plurality of columns are built at intervals, and a plurality of cables are installed on the front side of the group of columns at a vertical interval and stretched, and a middle fence is provided with a plurality of left and right ring portions. Fitting the brace support frames from the rear with a vertical spacing, and connecting the left and right ring parts of each brace support frame, the left,
A protective fence characterized by arranging right connecting rods in parallel on the left and right sides of the front side of the intermediate support column, and connecting the left and right connecting rods to the left and right sides of each cable of the intermediate support column to provide elastic support. 2. The protective fence reinforcing device according to claim 1, wherein a wire net is stretched over the entire surface of the cable group attached to the support column group. 3. A plurality of bullets, each of which is composed of a fitting main body corresponding to the cross-sectional shape of the intermediate support column and left and right ring parts continuously provided on both sides of the same mounting main body, and which are fitted on the intermediate support column with a vertical interval. The left and right connecting rods and the left and right connecting rods, which are connected in parallel to each other between the front parts of the left and right ring parts of the support reinforcing frame and the left and right ring parts, are arranged in parallel on the left and right sides of the intermediate support column. The reinforcing fence reinforcing device according to claim 1 or 2, wherein the rod is provided with a plurality of cross connecting fittings for connecting the respective cables.