JPH0731915U - Temporary rockfall protection fence for small-scale rockfall countermeasures - Google Patents

Abstract

(57) [Summary] [Purpose] Loading and unloading on trucks is smooth, and installation,
The purpose is to provide a temporary rockfall protection fence for small-scale rockfall countermeasures, which has the effect that assembly will not take time. [Structure] The temporary rock fall protection fence section 10, a support storage 11 for columns, and a wire mesh unit storage stand 12 are provided. The temporary rock fall protection fence section 10 includes left and right columns 2, 3, wire mesh units 4, and lower stays 5. It consists of

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 This plan relates to a temporary rockfall protection fence with a new structure for small-scale rockfall countermeasures.

[0002]

[Prior art]

 Conventionally, this kind of thing is as follows. 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 columns and working at high places.

[0003]

[Problems to be solved by the device]

 The conventional techniques described above 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. Due to the large number of parts, it takes about one week to install 100 m 2, 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 such problems of the conventional technique, and an object thereof 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 wire mesh unit storage base 12. The temporary rockfall protection fence 10 includes left and right columns 2, 3 and a wire mesh unit. 4 and a lower stay 5, and the left and right struts 2 and 3 are composed of vertical portions 2A1 and 3A1 made of H-shaped steel and inclined portions 2A2 and 3A2 that are connected to the upper end of the vertical portions obliquely upward and rearward. The strut bodies 2A and 3A configured, the bottom portions 2B and 3B continuously connected to the lower rear ends of the strut bodies 2A and 3A in the horizontal direction toward the rear, and the back and bottom portions 2B of the vertical portions of the strut bodies 2A and 3A. , 3B for connecting the rear ends of the scaffolds, 3B, and the upper scaffolding board installation mounts 2D, 3D that are continuously connected to the rear faces of the vertical parts 2A1, 3A1 of the pillar bodies 2A, 3A in a horizontal state toward the rear, Behind the back of the copies 2C and 3C The lower scaffolding plate installation pedestals 2E and 3E, which are continuously installed in a horizontal state, and the wire netting unit 4 are composed of a frame 4A formed in a rectangular shape having a horizontally long front face, and a wire netting 4B stretched over the frame. In addition, the lower stay 5 is configured to be fitted and fixed between the inclined portions 2A2 and 3A2 of the left and right columns 2 and 3 which are erected parallel to the front and between the vertical portions 2A1 and 3A1. , The equilateral angle steel 5A and the connecting pieces 5B welded to both ends of the equilateral angle steel 5A. The vertical parts 2A1 and 3A1 on the left and right struts 2 and 3 standing parallel to the front face It is configured to be fitted and fixed, and the column storage stand 11 is provided with hooks for hanging on a base frame formed by connecting front and rear long pipes made of square pipes and short pipes on the left and right sides in a flat rectangular shape. Left column and right column on the base frame When stacking a suitable number of columns facing each other, corner columns are erected so that each of these columns is not laterally displaced, and the wire mesh unit storage base 12 is used for hanging on a base frame configured in a flat rectangular shape. When a hook is provided and a proper number of wire netting units are stacked on this base frame, a supporting vertical frame is erected so that each of these wire netting units does not laterally shift, and a lower angle storage section is installed side by side with this base frame. It is a small-scale temporary rockfall protection fence for countermeasures against falling rocks. In this case, the column guides 2F, 3F can be provided on the back surface of the vertical portions 2A1, 3A1 of the column main bodies 2A, 3A so as to project rightward from the vertical portions at the upper and lower positions. In addition, 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]

【Example】

 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 section 10, a storage base 11 for columns, and a storage base 12 for wire mesh units. The temporary rockfall protection fence section 10 is composed of left and right columns 2, 3, a wire netting unit 4, and a lower stay 5.

A description will be given below in order. The left and right columns 2, 3 are column bodies 2A1, 3A1 made of H-shaped steel, and column bodies 2A, 3A composed of inclined portions 2A2, 3A2 that are connected to the upper ends of the vertical sections diagonally upward and rearward. The bottoms 2B and 3B made of H-shaped steel, which are continuously connected to the lower ends of the backs of the pillar bodies 2A and 3A in the horizontal direction toward the rear, and the back surfaces of the vertical portions of the pillar bodies 2A and 3A and the rear ends of the bottoms 2B and 3B. Connecting parts 2C and 3C made of H-shaped steel to be connected to each other, and horizontal L-shaped upper scaffolding plate installation pedestals 2D and 3D, which are horizontally connected to the back of the vertical parts 2A1 and 3A1 of the pillar bodies 2A and 3A toward the rear. , The horizontal L-shaped lower scaffolding plate installation bases 2E and 3E that are continuously connected to the rear faces of the backing parts 2C and 3C in the horizontal state, and the vertical positions on the rear faces of the vertical parts 2A1 and 3A1 of the support columns 2A and 3A. To the right of the vertical part Projecting from the support post guide 2F directed, 3F is formed.

Further, behind the bottoms 2B and 3B, anchor angles 2G and 3G, which are made of equilateral angle steel and are used to prevent displacement of the protective fence, are connected in a horizontal state, and the inclined portions 2A2 and 3A2 are laid on the ground. After assembling with, the special hanging pieces 2H and 3H for standing vertical hanging used when standing it up are provided, and further the hanging holes 2I and 3I for hanging the pillar horizontally are opened in the bottom portions 2B and 3B. ing.

The wire mesh unit 4 is composed of a frame 4A that is formed in a rectangular shape that is long in the front and has an angle, and a wire mesh 4B that is stretched around this frame. The wire netting unit 4 is fitted and fixed to the upper portion between the inclined portions 2A2 and 3A2 of the right and left columns 2 and 3 and the vertical portions 2A1 and 3A1 by the bolts B. Become. 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 this connecting piece. Then, the lower stay 5 is fixed by the fitting bolts B above and below between the vertical portions 2A1 and 3A1 on the left and right columns 2 and 3 which are erected parallel to the front.

Next, the column storage base 11 is composed of front and rear long pipes 11A1 and 11A2 made of square pipes, a base frame 11A formed by connecting left and right short pipes 11A3 and 11A4 in a plane rectangular shape, and this base frame. The left and right front corner pillars 11B1 and 11B2, the rear left and right corner pillars 11B3 and 11B4 that are planted in the four inner corners of 11A, and the left and right corner pillars that are slightly displaced to the left and right from the center in the base frame 11A. The left and right connecting pipes 11C1 and 11C2 stretched in parallel with the short pipe, and the rear left pillar 11D1 and the front corners of the right connecting pipe 11C2 which are planted in the rear corners of the left connecting pipe 11C1 The front right column 11D2 and the left short pipe 11A3 are slightly rearward on the upper faces of the left column 11E1 and the right short pipe 11A4 having an L-shaped cross section, which are planted at a slightly rear position on the upper face. It is composed of a right column 11E2 with an L-shaped cross section that is planted at one side, and a pin P is projected on the top face of the corner columns 11B1, 11B2, 11B3, 11B4, and a pin hole H is opened on the bottom face. The left and right connecting pipes 11C1 and 11C2 are provided with hanging hooks F.

Therefore, with reference to FIG. 7, the relationship between the column storage base 11 and the columns 2 and 3 will be described. When the left column 2 is placed on the upper surface of the column storage base 11, the connecting corner portion between the column main body 2A and the bottom portion 2B of the left column 2 is attached to the front left corner column 11B1 of the column storage base 11. Perform in the locked state. In that state, five left columns 2 are stacked. In this case, the left columns 2 located above and below are locked to each other by the column guides 2F and the left columns 11E1. 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 the 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 guides 3F and the right columns 11E2.

The wire mesh unit storage base 12 includes a base frame 12A having a flat rectangular shape, and support vertical frames 12B1 and 12B2 on the front left and right and rear left and right by the L-shaped section material planted in the four corners of the base frame. The supporting vertical frames 12B3 and 12B4, the lower angle storage portion composed of the front and rear U-shaped members 12C standing upright inside the base frame 12A, and the projecting piece connected to the base frame 12A correspond to the pin P. It is composed of a connecting portion 12D having a pin hole and a hanging hook F provided on the base frame 12A.

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 assembling and assembling these 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 a standing state, but in reality, they are assembled in a unit state in a state of being laid down, and then they are suspended 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. In the opening 6 between the vertical portions 2A1 and 3A1 of the columns 2 and 3, a known wire net is stretched by a known method. Further, at the time of assembling work or disassembling work, the scaffolding plate 7 is installed by utilizing the upper scaffolding plate installation mounts 2D and 3D and the lower scaffolding plate installation mounts 2E and 3E. Further, a well-known single pipe 8 can be placed on the upper surfaces of the bottom portions 2B and 3B, and a sand bag 9 can be placed on the single tube 8 for stability. 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 suspension pieces of the inclined portions 2A2 and 3A2 so that they can be suspended vertically when the whole is erected.

[0015]

[Effect of device]

 Since the present invention is configured 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 2 can be done 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 at the time of disassembly can be easily performed. It is also convenient for transportation. That is, since the left and right columns 2, 3 and the wire netting unit 4 can be stacked on top of each other, a storage space can be saved and a collapse of the load during storage and transportation can be prevented. It can be stored and managed every 20 m. 6. By using the column storage base 11 and the wire mesh unit storage base 12, tidyness can be tidied up and a damaged portion can be found early. 7. There is no need to count the number of individual parts one by one. In other words, since the quantity can be checked for each of the support storage 11 for columns and the storage 12 for wire mesh units, 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.