JP2017078319A - Post foundation block for guard fence - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a post foundation block for guard fence that enables a guard fence to be installed without narrowing the width of a sidewalk and that enables a guard fence to be installed without being influenced by an existing electric pole and the like.SOLUTION: A post foundation block is for supporting a post 13 for a guard fence 11 installed in the boundary between a sidewalk 31 and a roadway 30. In the post foundation block, a recessed groove 2 for housing a sidewalk/roadway boundary block 10 and extending in the longer direction is formed on the bottom surface of a block body 1, and a hole part 3 in which the post 13 for the guard fence 11 is inserted and supported is formed on the top face of the block body 1. The block body 1 is installed in a state of covering the sidewalk/roadway boundary block 10, and the post 13 for the guard fence 11 is supported on the sidewalk/roadway boundary block 10.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a support base block of a protective fence that can be installed without reducing the width of the sidewalk, and can be installed without being affected by a utility pole, etc. is there.

  Conventionally, as shown in FIG. 8, a pedestrian boundary block 10 is provided at the boundary between a sidewalk 31 and a roadway 30 to distinguish between the two, thereby improving the safety of pedestrians. Recently, however, there has been a tendency for automobile accidents to increase as the amount of traffic of automobiles increases, and the number of cases where automobiles get over the pedestrian boundary block 10 and enter the sidewalk to involve pedestrians in accidents is increasing. In particular, many students are walking on school roads, so if a car enters the sidewalk, it often develops into a major accident. In addition, there was a case where a small school child suddenly jumped to the roadway side across the walking road boundary block 10, which was dangerous.

  Therefore, protective fences 11 such as guard cables, guard rails, and guard fences are provided between the sidewalk and the roadway to prevent the intrusion of the automobile on the sidewalk side and the pedestrians jumping out to the roadway side. On the other hand, for example, as shown in FIG. 7, as a method of installing the protective fence 11 including the guard cable 12, it is proposed to use a column base block 21 provided with an insertion hole 22 for supporting the column 13. (For example, see Patent Document 1 and Patent Document 2). FIG. 9A shows a state in which the column base block 21 is buried in the ground when the buried portion of the column 13 is shallow. On the other hand, as shown in FIG. 9B, when the buried portion of the column 13 is deep, only the column 13 may be buried without using the column base block 21.

  However, the column base blocks described in Patent Document 1 and Patent Document 2 are usually installed outside the walkway boundary block 10, that is, on the sidewalk side. By providing the protective fence 11, the width of the sidewalk 31 is set. There was a problem that became narrow and difficult to walk. Furthermore, since the width of the sidewalk 31 is originally narrow and there is not enough space to install the protective fence 11, the protective fence 11 cannot be provided due to the presence of the utility pole 33 and various signs, There is also a problem that the protective fence 11 needs to be interrupted only by that portion, and the installation work becomes complicated.

JP 2000-170110 A JP 2013-40467 A

  The present invention solves the above-mentioned problems and allows the protective fence to be supported easily and reliably, as well as installing the protective fence while ensuring the width of the original sidewalk without reducing the width of the sidewalk. It is an object of the present invention to provide a support fence base block that can be installed continuously without interruption even if there are utility poles or signs, etc.

The support fence post foundation block of the present invention made to solve the above problems is a support foundation block for supporting the protection fence support block provided at the boundary between the sidewalk and the roadway,
A concave groove extending in the longitudinal direction for accommodating the walking road boundary block is formed on the bottom surface of the block body,
The block main body is installed in a state where it is put on the pedestrian boundary block, and the column of the protection fence is supported on the pedestrian boundary block.

  According to a preferred embodiment, the block body is preferably fixed to the pedestrian boundary block by a mechanical connecting means or a chemical connecting means.

  According to another preferred embodiment, it is preferable that a hole for inserting and holding a guard post is formed on the upper surface of the block body.

  In the support fence base block of the present invention, the bottom surface of the block main body is formed with a concave groove extending in the longitudinal direction for accommodating the walking road boundary block, and the block main body is covered on the walking road boundary block. Since the protective fence column is supported on the pedestrian road boundary block, the width of the sidewalk is not reduced by the installation of the protective fence as in the prior art. Moreover, even if the width of the sidewalk is narrow, a protective fence can be provided, and further, installation work can be continuously performed without interruption even if a power pole or various signs are present.

  Further, when the block main body is fixed to the pedestrian boundary block by a mechanical connecting means or a chemical connecting means, it is possible to more securely hold the protective fence column without causing play.

  In addition, in the case where a hole for inserting and holding the support fence post is formed on the upper surface of the block body, the support fence support can be easily attached to the block body.

It is a perspective view which shows embodiment of this invention. It is a disassembled perspective view which shows the use condition of the support | pillar foundation block of this invention. It is a longitudinal cross-sectional view which shows the use condition of the support | pillar foundation block of this invention. It is a perspective view which shows the road using the support | pillar foundation block of this invention. It is a longitudinal cross-sectional view which shows other embodiment. It is a longitudinal cross-sectional view which shows other embodiment. It is a longitudinal cross-sectional view which shows the state which fixed the block main body with the adhesive agent. It is a longitudinal cross-sectional view which shows other embodiment. It is a perspective view which shows the road using the support | pillar foundation block of a prior art example. (A) is a longitudinal cross-sectional view showing a use state in the conventional example when the supporting column base block is buried in the ground when the buried portion of the supporting column is shallow, and (b) is a supporting column when the embedded portion of the supporting column is deep. It is a longitudinal cross-sectional view which shows the use condition in case only is filled.

Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a perspective view showing a support base block of the present invention. FIG. 2 is an exploded perspective view showing the use state, and FIG. 3 is a longitudinal sectional view showing the use state. FIG. 4 is a perspective view showing a road using the support foundation block of the present invention.
The support base block of the present invention is used for fixing and supporting the support fence provided at the boundary between the sidewalk and the roadway.

In the figure, 30 is a roadway, 31 is a sidewalk, 32 is a central line of the roadway 30, and 33 is a utility pole. Further, 10 is a walking road boundary block provided at the boundary between the sidewalk and the roadway, and 11 is a protective fence. In the illustrated example, the guard fence 12 is provided as the guard fence 11, but it goes without saying that a guard fence or a guard fence may be provided.
In addition, the same number is attached | subjected about the same member as the prior art shown in FIGS.

In the figure, 1 is a concrete block body. The block body 1 has a rectangular parallelepiped shape with a rectangular cross section in the illustrated example, but may be a semicircular cross section or a large cross section, and is not limited thereto.
A concave groove 2 extending in the longitudinal direction for housing the walking road boundary block 10 is formed on the bottom surface of the block body 1. The concave groove 2 is sized so as to be completely covered when covered on the block main body 1 and does not leave a large gap between the block main body 1 and prevents play. It has a structure that can be done.

  Further, a hole 3 for inserting and holding the support column 13 of the protective fence 11 is formed on the upper surface of the block book 1. The shape of the hole 3 corresponds to the outer shape of the column 13 and is circular in cross section in the illustrated example. In addition, there is no large gap between the column 13 and the column 13 can be supported firmly. There are structures in which a cylindrical member is mounted in the hole 3 and structures in which the hole 3 is not formed. This will be described later.

  Further, the hole 3 penetrates from the upper surface of the block body 1 to the bottom surface of the groove 2 and is devised so that the hole can be easily formed. Of course, there is no problem even if the hole does not penetrate, but it is necessary to secure a depth sufficient to support the column 13 firmly. Note that one or more holes 3 can be formed according to the length of the block body 1, the interval between the columns 13 of the protective fence 11, and the like.

The block body 1 is fixed to the pedestrian road boundary block 10 by mechanical connection means or chemical connection means.
As the mechanical connection means, for example, a tubular member 4 made of steel or synthetic resin can be used (see FIG. 5a). This tubular member 4 has a structure in which a flange 4a is formed at the top and a center hole is formed at the bottom. On the other hand, an anchor bolt 5 is embedded in the upper surface of the walking road boundary block 10, and this anchor bolt 5 is passed through the center hole portion and fastened with a nut 4b, and the block body 1 is walked by the flange portion 4a. The structure is firmly fixed to the roadway boundary block 10. In this case, the column 13 is fitted and fixed in the cylindrical member 4.
Also, as shown in FIG. 5b, a fixing member 14 with a flange 14a is attached to the base of the column 13, and the column 13 is fixed as a structure in which the flange 14a is fastened to the anchor bolt 5 with a nut 4b. You can also. In this case, it is not necessary to form the hole 3 in the upper surface of the block book 1.

Further, as a chemical connecting means, for example, as shown in FIG. A structure in which the adhesive 6 is filled and the both are firmly fixed by the adhesive can be obtained. Cement mortar can be used as the adhesive 6, but an adhesive made of synthetic resin and having weather resistance can also be used. The adhesive 6 may be filled in the gap after the protective fence 11 is installed, or before the protective fence 11 is installed, for example, the surface of the concave groove 2 and the through hole portion 3 of the block body 1 is thickened. It may be applied. Moreover, a chemical anchor, a bond anchor, etc. can also be used.
As shown in FIG. 9, it is known in the prior art that the gap between the insertion hole 22 and the column 13 is filled with sand 23. However, as in the present invention, the adhesive is filled and positively bonded and fixed. It is different from the structure.

FIG. 7 is a longitudinal sectional view showing another embodiment.
In FIG. 7, the sidewalk 31 is higher than the roadway 30, and the walking road boundary block 10 is installed at the boundary portion (referred to as a mount-up structure). In this case, the shape of the block body 1 is not bilaterally symmetric, and there is no leg portion that hangs down on the sidewalk side of the groove 2 and the upper surface is directly placed on the sidewalk for support. The other structure of the hole 3, the mounting structure of the column 13, and the fixing structure of the block main body 1 and the pedestrian boundary block 10 are the same as those described above.

The strut base block of the present invention configured as described above is installed for use on a pedestrian boundary block. That is, when the pedestrian boundary block is covered in the concave groove of the block main body, the column base blocks are arranged in a line instead of the pedestrian boundary block. Since a hole for inserting and holding the guard fence post is formed on the upper surface of the block body, the guard fence can be easily installed simply by inserting the guard fence pillar into the hole. If the gap is filled with an adhesive, the block body 1, the pedestrian boundary block 10, and the support 13 can be bonded and fixed more firmly.
The protective fence to be installed is located directly above the pedestrian boundary block and is not inside the pedestrian boundary block as before, so the width of the sidewalk will not be reduced, and the width of the sidewalk is narrow and conventional If so, it can be installed without trouble even in difficult locations.

  As is clear from the above description, the column base block of the present invention is a block for supporting the column of the protective fence, and the bottom surface of the block main body has a longitudinal direction for storing the pedestrian boundary block. An extending groove is formed, and a hole for inserting and holding a guard post is formed on the upper surface of the block body, and the block body is covered on the pedestrian boundary block. Since it is installed and used for use, the protective fence can be supported easily and reliably. In addition, since the protective fence is installed on the pedestrian boundary block, the width of the original sidewalk can be secured without reducing the width of the sidewalk. There is also an advantage that construction work can be simplified because the protective fence can be installed continuously.

DESCRIPTION OF SYMBOLS 1 Block main body 2 Concave groove 3 Hole part 4 Cylindrical member 4a Gutter part 4b Nut 5 Anchor bolt 6 Adhesive 10 Pedestrian road boundary block 11 Guard fence 12 Guard cable 13 Strut 14 Fixing member
14a Ridge 21 Conventional pillar foundation block 22 Insertion hole 23 Sand 30 Roadway 31 Sidewalk 32 Central line 33 Telephone pole

Claims (3)

A support base block for supporting a support fence post provided at the boundary between the sidewalk and the roadway,
A concave groove extending in the longitudinal direction for accommodating the walking road boundary block is formed on the bottom surface of the block body,
A protection fence post base block, wherein the block main body is installed in a state of being covered on a walking road boundary block, and supports the protection fence support on the walking road boundary block.   The guard base column base block according to claim 1, wherein the block main body is fixed to the pedestrian boundary block by mechanical connection means or chemical connection means.   The protective base column base block according to claim 1 or 2, wherein a hole for inserting and holding the protective rail column is formed on an upper surface of the block body.

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