JPH0754325Y2 - Temporary rockfall protection fence for small-scale rockfall countermeasures - Google Patents

Description

[Detailed description of the device]

[0001]

[Industrial field of application] This proposal relates to a temporary rockfall protection fence for small-scale rockfall countermeasures, which has a new structure.

[0002]

2. Description of the Related Art Heretofore, in this type, the following has been done. 1. The strut structure is an assembly type in order to reduce costs in case of damage. 2. The wire mesh is attached to the whole surface by using scaffolds after assembling the pillars and working at high places.

[0003]

The problems described in the prior art have the following problems. 1. It takes a lot of time and effort to load the truck. 2. It took time to install and assemble. Since the number of parts is large, it takes about one week to install 100 m, for example. 3. It takes time to install the net after installation. 4. It takes time to dismantle and store. 5. It takes time to find the damaged part. 6. The protective fence is displaced due to falling rocks and earth pressure. 7. Work in high places and work without suspension occur.

The present application has been made in view of the above problems of the prior art, and an object of the present application is to provide a device capable of solving the above problems.

[0005]

[Means for Solving the Problems] In order to achieve the above object, the present invention is as follows. That is, the one of the present application is composed of a temporary rockfall protection fence portion 10, a support storage 11 for columns, and a storage 12 for wire mesh units,
The temporary rockfall protection fence part 10 is composed of left and right columns 2, 3, a wire mesh unit 4, and a lower stay 5, and the left and right columns 2, 3 are vertical parts 2A1, 3A1 made of H-shaped steel and this vertical part. Slopes 2A2, 3 that are connected diagonally upward and rearward to the upper end of the
A2, 3A pillar body composed of A2, bottom 2B, 3B horizontally connected to the lower end of the back of the pillar body 2A, 3A toward the rear, and the back surface of the vertical portion of the pillar body 2A, 3A Holding part 2 that connects the rear ends of bottom parts 2B and 3B
C, 3C and the vertical portion 2A of the pillar body 2A, 3A
Upper scaffolding board installation pedestals 2D and 3D, which are connected to the rear surfaces of 1, 3A1 in the rearward horizontal direction, and lower scaffolding board installation pedestals 2E, which are connected to the rear surfaces of the rear portions 2C and 3C in the rearward horizontal direction. , 3E and the wire netting unit 4 are composed of a frame 4A formed in the shape of a horizontally long rectangular front, and a wire netting 4B stretched over the frame, and the left and right columns 2, 3 which are erected parallel to the front surface. Between the inclined portions 2A2 and 3A2 and the vertical portion 2
The lower stay 5 is configured to be fitted and fixed in an upper portion between A1 and 3A1. The lower stay 5 includes an equilateral angle steel 5A and connecting pieces 5B welded and attached to both ends of the equilateral angle steel 5A. It is configured to be fitted and fixed vertically between the vertical portions 2A1 and 3A1 of the left and right upright columns 2 and 3, and the column storage stand 11 includes a long pipe before and after the square pipe and short pipes on the left and right sides. When a hanging hook is provided on the base frame that is connected in a square shape and an appropriate number of left and right columns are stacked on this base frame so that they face each other, be careful not to laterally shift each of these columns. When a corner pillar or the like is erected and the wire mesh unit storage stand 12 is provided with a hanging hook on a base frame configured in a flat rectangular shape, and a proper number of wire mesh units are stacked on this base frame, each of these Do not slip the wire mesh unit Such supporting vertical frame are erected so,
Moreover, this is a temporary rockfall protection fence for small-scale rockfall countermeasures, in which a lower angle storage section is attached to this base frame. in this case,
On the back surface of the vertical portions 2A1 and 3A1 of the column main bodies 2A and 3A, column guides 2F and 3F can be provided so as to extend rightward from the vertical portions at upper and lower positions. Further, an anchor angle can be provided behind the bottom portions 2B and 3B to prevent the displacement of the protective fence when a rock falls.

[0006]

EXAMPLES Examples will be described with reference to the drawings. 1
Is a temporary rockfall protection fence having a new structure for small-scale rockfall countermeasures, and is composed of a temporary rockfall protection fence portion 10, a support storage 11 for columns, and a storage 12 for wire mesh units. The temporary rockfall protection fence part 10 is composed of left and right columns 2, 3, a wire netting unit 4, and a lower stay 5.

These will be described below in order. The left and right columns 2, 3
A pillar body 2A, 3A composed of a vertical section 2A1, 3A1 made of H-shaped steel and a slanted section 2A2, 3A2 continuously provided obliquely upward and rearward on the upper end of the vertical section, and the pillar body 2A, 3A.
A bottom portion 2B, 3B made of H-shaped steel that is continuously connected to the lower end of the rear surface of A toward the rear, and an H-shaped steel that connects the back surface of the vertical portion of the pillar body 2A, 3A and the rear end of the bottom portion 2B, 3B. 2C, 3C and the rear side of the vertical portions 2A1, 3A1 of the main body 2A, 3A of the support pillars 2D, 3D in the lateral L-shape that is continuously installed in the horizontal direction toward the rear.
And laterally L-shaped lower scaffolding plate installation pedestals 2E and 3E, which are continuously provided to the rear of the backing sections 2C and 3C in a horizontal state toward the rear,
On the back surface of the vertical portions 2A1 and 3A1 of the column main bodies 2A and 3A, column guides 2F and 3F are provided which are vertically positioned and project rightward from the vertical portions.

Further, anchor angles 2G, 3 for preventing displacement of the protective fence made of equilateral angle steel behind the bottoms 2B, 3B.
G is continuously installed in a horizontal state, and the inclined portions 2A2, 3A2
Is a hanging piece 2H, 3 for standing and vertically hanging, which is used when it is erected on the ground and then erected.
H is provided, and further, hanging holes 2I and 3I for hanging the pillar horizontally are formed in the bottom portions 2B and 3B.

The wire netting unit 4 is composed of a frame 4A which is formed in a rectangular shape having an oblong front face with an angle, and a wire netting 4B stretched over the frame. The wire mesh unit 4 includes vertical portions 2A1, 3A1 between the inclined portions 2A2, 3A2 of the left and right columns 2, 3 which are erected in parallel with each other in the front.
It will be fixed by a fitting bolt B in the upper part between them. The lower stay 5 is composed of an equilateral angle steel 5A and a connecting piece 5B welded to both ends of the equilateral angle steel 5A, and a bolt hole is formed in the connecting piece. Then, the lower stay 5 is fixed by fitting bolts B above and below between the vertical portions 2A1 and 3A1 of the left and right columns 2 and 3 which are erected parallel to the front.

Next, the column storage base 11 is composed of long pipes 11A1 and 11A2, which are square pipes, and a base frame 11A formed by connecting the left and right short pipes 11A3 and 11A4 in a plane rectangular shape. Front and left corner pillars 11B1 and 11B2, which are planted in the four inner corners, and rear left and right corner pillars 11B
3, 11B4, and left and right connecting pipes 11C1 and 11C2 stretched in parallel with the left and right short pipes at positions slightly displaced to the left and right from the center in the base frame 11A,
A rear left column 11D1 planted in the rear corner of the left connecting pipe 11C1 and a front right column 11D2 planted in the front corner of the right connecting pipe 11C2, and a plant slightly rearward on the upper surface of the left short pipe 11A3. The left pillar 11E1 having the L-shaped cross section and the right pillar 11E2 having the L-shaped cross section, which is planted at a slightly forward position on the upper surface of the right short pipe 11A4, and the corner pillars 11B1, 11B2.
Pins P project from the top surfaces of 11B3 and 11B4, and pin holes H are formed in the bottom surfaces of the left and right connecting pipes 11C1,
11C2 is provided with a hanging hook F.

Therefore, the relationship between the column storage base 11 and the columns 2 and 3 will be described with reference to FIG. Pillar storage 1
When the left support 2 is placed on the upper surface of 1, the state where the connection corner of the support main body 2A and the bottom 2B of the left support 2 is locked to the front left corner post 11B1 of the support storage 11 for support. Done in. In that state, five left columns 2 are stacked. In this case, the left column 2 located above and below is the column guide 2
F and the left column 11E1 lock each other. When the right column 3 is placed on the upper surface of the column storage base 11, the rear right corner column 11B4 of the column storage base 11 is provided with a connecting corner portion between the column body 3A and the bottom portion 3B of the right column 3. Perform in the locked state. In that state, five right columns 3 are stacked. In this case, the right columns 3 located above and below are locked to each other by the column guide 3F and the right column 11E2.

The wire mesh unit storage stand 12 has a base frame 12A having a rectangular shape in plan view, and front and left supporting vertical frames 12B1 and 12B made of L-shaped cross-sections planted at four corners of the base frame.
2 and rear left and right supporting vertical frames 12B3, 12B4, a lower angle storage section composed of front and rear U-shaped members 12C standing upright inside the base frame 12A, and the above-mentioned pin on the projecting piece connected to the base frame 12A. It is composed of a connecting portion 12D having a pin hole corresponding to P and a hanging hook F provided on the base frame 12A.

The device of the present invention is assembled as follows. 1. The left and right columns 2, 3 are temporarily placed in parallel with the bottoms 2B, 3B standing upright, and the wire mesh unit 4 and the lower stay 5 are arranged between these columns 2, 3. 2. After these are connected and assembled into a unit with bolts, the whole is erected with the bottom portions 2B and 3B as the lower surface. That is, in the figure, they are assembled in an upright state, but in reality, they are assembled in a unit in a state of lying down, and they are vertically hung and connected. 3. As shown in FIG. 3, the units are connected to each other by connecting the columns 2 and 3 which are in contact with each other with three bolts.

4. Vertical parts 2A1 and 3 on columns 2 and 3
A well-known wire mesh is stretched by a well-known method in the opening 6 between A1. In addition, at the time of assembling work and disassembling work, the upper scaffolding plate installation pedestals 2D and 3D and the lower scaffolding plate installation pedestals 2E and 3E.
The scaffolding board 7 is installed using and. In addition, the bottom 2B,
A known single tube 8 can be placed on the upper surface of 3B, and a sand bag 9 can be placed on this to stabilize the single tube. In addition, anchors will be installed to prevent slipping of the protective fence due to falling rocks and earth pressure for stability. Wires are hung on the dedicated suspending pieces of the inclined portions 2A2 and 3A2 so that they can be suspended vertically when the whole is erected.

[0015]

Since the present invention is constructed as described above, it has the following effects. 1. Loading and unloading on the truck is smooth and takes no time. 2. Unitization saves time in installation and assembly. That is, the installation for 100 m can be performed in about 3 days. 3. No scaffolding is required for installation and assembly. 4. Netting after installation can be minimized.

5. By using the column storage base 11 and the wire mesh unit storage base 12, storage, management, and storage during disassembly can be easily performed. It is also convenient for transportation. That is, since the right and left columns 2, 3 and the wire mesh unit 4 can be stacked, a storage space is not required and
It is possible to prevent load collapse during storage and transportation. 20m
Can be stored and managed for each item. 6. By using the column storage base 11 and the wire mesh unit storage base 12, tidyness can be tidied up and the damaged portion can be found early. 7. There is no need to count the number of individual parts one by one. That is, the storage base 11 for the support and the storage base 12 for the wire mesh unit
Since it is possible to check the quantity of each item, it does not take time to confirm the quantity.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of a temporary rockfall protection fence portion.

FIG. 2 is a rear perspective view showing a usage state of a temporary rockfall protection fence.

FIG. 3 is an enlarged sectional view taken along line AA.

FIG. 4 is an exploded perspective view of a temporary rockfall protection fence for small-scale rockfall countermeasures.

FIG. 5 is a perspective view of a state of use of a temporary rockfall protection fence for small-scale rockfall countermeasures.

FIG. 6 is an enlarged perspective view of an essential part of the above.

FIG. 7 is a plan view illustrating a relationship between a support storage for a support and the support.

FIG. 8 is an enlarged vertical cross-sectional view mainly showing an engaged state of a column guide in FIG.

9 is an enlarged vertical cross-sectional view of a main part in FIG.

[Explanation of symbols]

 1 Temporary rockfall protection fence for small-scale rockfall countermeasures 10 Temporary rockfall protection fence 2, 3 Pillars 4 Wire mesh unit 5 Lower stay 11 Pillar storage stand 12 Wire mesh unit storage stand

Claims (3)

[Scope of utility model registration request] 1. A temporary rock fall protection fence section (10), a support storage stand (11), and a wire mesh unit storage stand (12), wherein the temporary rock fall protection protection fence section (10) comprises left and right support posts. (2, 3), a wire mesh unit (4), and a lower stay (5). The left and right struts (2, 3) are vertical sections (2A1, 3A1) made of H-shaped steel and the vertical sections of these vertical sections. A pillar main body (2A, 3A) composed of a slanted portion (2A2, 3A2) continuously provided diagonally upward and rearward at the upper end, and a rear end lower end of the pillar main body (2A, 3A) connected horizontally in the rearward direction. Installed bottom part (2B, 3B) and pillar body (2A, 3A)
Of the vertical portion and the back portion (2C, 3C) connecting the rear end of the vertical portion and the rear end of the bottom portion (2B, 3B), and the pillar body (2A, 3).
The upper scaffolding board installation frame (2D, which is continuously installed in a horizontal state toward the rear on the back surface of the vertical portion (2A1, 3A1) in A)
3D) and the lower scaffolding board installation cradle (2E, 3E) which is continuously installed on the back surface of the backing section (2C, 3C) in a horizontal state facing rearward.
The wire mesh unit (4) is composed of a frame (4A) formed in a horizontally long rectangular shape in the front and a wire mesh (4B) stretched over the frame, and the left and right sides are erected parallel to the front. The pillars (2, 3) are configured to be fitted and fixed between the inclined portions (2A2, 3A2) and between the vertical portions (2A1, 3A1), and the lower stay (5) is equilateral angle steel (5A). And the connecting pieces (5B) welded to both ends of the equilateral angle steel (5A), the vertical parts (2) of the left and right columns (2, 3) standing parallel to the front.
A1, 3A1) are vertically inserted and fixed, and the column storage stand (11) is a base frame formed by connecting front and rear long pipes made of square pipes and left and right short pipes in a planar rectangular shape. A hook for hanging is provided, and when a proper number of left columns and right columns are stacked on this base frame in a state of facing each other, corner columns etc. are erected so that each of these columns does not laterally shift,
The wire mesh unit storage stand (12) is provided with a hanging hook on a base frame configured in a flat rectangular shape, and when a suitable number of wire mesh units are stacked on this base frame, these wire mesh units do not laterally shift. A temporary falling rock protection fence for small-scale rockfall countermeasures, in which a supporting vertical frame is erected like this, and a lower angle storage section is also installed side by side with this base frame. 2. A pillar guide (2F, 3F) is provided on the back surface of the vertical portion (2A1, 3A1) of the pillar body (2A, 3A) so as to extend rightward from the vertical portion at a vertical position. Temporary rockfall protection fence for the listed small-scale rockfall countermeasures. 3. A temporary rockfall protection fence for small-scale rockfall prevention according to claim 1 or 2, further comprising an anchor angle provided behind the bottom portions (2B, 3B) for preventing deviation of the protection fence during rockfall.