Security fence and method for installing security fence

Abstract

To provide a security fence that solves a problem of prior art, specifically, that can be installed easily and also can be installed stably compared to the prior art, and a method for installing the same.SOLUTION: A security fence according to the present invention is arranged around an object including a magnetic material to prevent human approach, and comprises a "column" and an "arm," and a "tip material" configured to include a magnet. The arm is pin-connected to the column at one end side, and has the tip material attached to the other end. Moreover, the arm is rotated with the column installed and when the tip material is magnetized with the object, the arm is fixed between the column and the object.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a fence that prevents approach to an object, and more specifically, to a security fence that can prevent approach to an object by magnetically attaching the tip of an arm to the object, and a method for installing the same. [Background technology]

[0002] Power plants generate electricity at several thousand to tens of thousands of volts, but to avoid losses due to electrical resistance, this electricity is converted to ultra-high voltage of around hundreds of thousands of volts before being transmitted. The voltage is then gradually reduced at each substation, such as ultra-high voltage substations, primary substations, secondary substations, and distribution substations, before being supplied to factories and other facilities, and the voltage is further reduced by pole-mounted transformers before being supplied to homes. In any case, the electricity generated at power plants is supplied to users via transmission and distribution lines that use electric wires and cables (hereinafter collectively referred to as "transmission lines, etc."), and naturally, there are a great number of transmission lines, etc., deployed throughout the country.

[0003] Power lines can be broadly divided into overhead power lines that are strung on power poles and underground power lines that are buried underground. Power poles that support these overhead power lines are equipped with various equipment such as insulators, cross arms, and pole-mounted transformers in addition to the power lines, and inspection and maintenance of these equipment is carried out on a daily basis. If a defect is found in the equipment as a result of inspection and maintenance, construction work to replace the equipment may be carried out.

[0004] In addition, spacers may be attached to three-phase (i.e., three wires) parallel-wired power lines, or power lines may be fixed to high-voltage pin insulators, and in these cases, necessary construction work is also carried out on-site. Furthermore, various construction work related to electrical equipment is carried out, such as bypass construction for power lines and construction work for burying power lines underground.

[0005] Such construction work may be carried out on the road, or the construction vehicle may be parked near the site. In such cases, tools and equipment may be temporarily stored near the site, but some of these may be dangerous to handle, so it is advisable to take measures to prevent third parties from entering the area around the construction vehicle.

[0006] In the past, to prevent third parties from entering construction areas, "road cones," also known as pylons or safety cones, were set up. Multiple road cones were placed at regular intervals, and cone bars were placed between the road cones to indicate that the area was a construction zone and to encourage people not to enter.

[0007] These road cones are cone-shaped and 70-80cm high, and pedestrians who do not realize that they are barriers indicating a construction zone may enter by stepping over the cone bar. In addition, the length of the cone bar is typically 1.5-2.0m, and in cases where the boundary of a construction zone is long, many road cones and cone bars must be prepared. Furthermore, the road cones connected by the cone bars can fall over simply by coming into contact with a regular car or pedestrian, or even due to strong winds, so there are problems with stability against falling over.

[0008] In order to solve the problem of road cones being difficult to notice, Patent Document 1 proposes a safety fence in which a sheet is connected to two wires that are stretched between a pair of posts. [Prior art documents] [Patent documents]

[0009] [Patent Document 1] JP 2021-143489 A Summary of the Invention [Problem to be solved by the invention]

[0010] According to the technology disclosed in Patent Document 1, the sheet connected to the wire can display the words "Under Construction, No Entry" to let passersby know that it is a barrier indicating a construction area. However, the safety fence in Patent Document 1 requires the placement of a pair of posts, the connection of the sheet to two wires, and the wires to be stretched between the posts, which requires a large number of parts and considerable effort to install. Also, like road cones, it lacks stability against tipping over.

[0011] The object of the present invention is to solve the problems associated with the prior art, i.e. to provide a safety fence that is easy to install and more stable than those of the prior art, and a method for installing the same. [Means for solving the problem]

[0012] The present invention was made based on an unprecedented idea that utilizes an object containing a magnetic material, i.e., that the tip of the arm can be magnetically attached to the object, thereby enabling stable installation.

[0013] The security fence of the present invention is a fence that is placed around an object containing a magnetic material to prevent people from approaching, and is equipped with a "post," an "arm," and a "tip member" that includes a magnet. One end of the arm is connected to the post with a pin, and the tip member is attached to the other end. Then, when the post is erected and the arm is rotated so that the tip member is magnetically attached to the object, the arm is fixed between the post and the object.

[0014] The safety fence of the present invention may also be configured so that the posts and arms are extendable.

[0015] The safety fence of the present invention may be configured such that a top magnetic body made of a magnetic material is provided on a part of the post. In this case, the tip members of the other arms are magnetically attached to the top magnetic body.

[0016] The safety fence of the present invention may also be one in which a contact surface is formed on the tip member. In this case, the tip member is attached to the arm so that the angle of the contact surface relative to the axial direction of the arm is freely changeable.

[0017] The safety fence of the present invention may also be one in which an insertion ring is formed on the post. Note that when the post is erected and the tip member is magnetically attached to the target object, the insertion ring is positioned above the arm.

[0018] The safety fence of the present invention may also be provided with insertion rings at the tops of the posts through which materials can be inserted.

[0019] The safety fence installation method of the present invention is a method for installing the safety fence of the present invention, and includes an arm rotation step and an arm fixing step. In the arm rotation step, the arm is rotated after erecting a support. In the arm fixing step, the tip of the arm is magnetically attached to the object, thereby fixing the arm between the support and the object. Then, the safety fence installed around the object can prevent people from approaching.

[0020] The safety fence installation method of the present invention can also include a safety fence connecting step in which the tip member of an arm relating to another safety fence is magnetically attached to the top magnetic body of the safety fence whose tip member is magnetically attached to the target object. Effect of the Invention

[0021] The safety fence and the safety fence installation method of the present invention have the following advantages. (1) The support pole can stand on its own, and the tip of the arm can be magnetically attached to the target object, allowing for stable installation. (2) The L-shaped structure consisting of posts and arms effectively functions as a barrier, thereby better preventing third parties from entering the security fence. (3) The arm that is pin-connected to the support can be folded, thereby making it possible to save space during transportation and storage. [Brief description of the drawings]

[0022] [Figure 1] FIG. 1 is a perspective view showing a schematic diagram of a safety fence according to the present invention arranged around a construction vehicle. [Diagram 2] FIG. 4 is a partial perspective view showing a schematic view of one safety fence. [Diagram 3] FIG. 4 is a side view showing a schematic view of the safety fence in use. [Figure 4] (a) is a side view showing a schematic of a support material consisting of a through-hole and a square base plate, (b) is a plan view showing a schematic of a support material with a square base plate, (c) is a plan view showing a schematic of a support material with a circular base plate, and (d) is a plan view showing a schematic of a support material with a cross-shaped base plate. [Diagram 5] FIG. 13 is a side view showing a schematic diagram of an arm rotatably connected to a connecting portion via a pin; [Figure 6] FIG. 4 is a partial side view showing a schematic diagram of a tip member composed of a contact surface and a ball joint. [Figure 7] A side view showing the support and arm with a yellow and black "tiger pattern" [Figure 8] FIG. 4 is a side view showing a typical example of a support column and an arm configured to be extendable and retractable. [Figure 9] FIG. 13 is a side view showing a schematic diagram of a safety fence in which the posts and arms are maintained in an overlapping state. [Figure 10] (a) is a partial side view showing, as a schematic, a support pillar having a magnetic top body on the side of the connecting part, and (b) is a front view showing, as a schematic, the state in which three safety fences arranged in the longitudinal direction are connected. [Figure 11] (a) is a partial side view showing, as a schematic, a support post with an insertion ring provided above the connecting part, and (b) is a front view showing as a schematic the situation in which a countermeasure material has been inserted into the insertion rings of three safety fences arranged in the longitudinal direction. [Figure 12] 1 is a flow chart showing the flow of the main steps of the safety fence installation method of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0023] An example of an embodiment of the safety fence and the safety fence installation method of the present invention will be described with reference to the drawings. One of the technical features of the present invention is that a part of the safety fence is magnetically attached to an object. Therefore, it can be used for various objects as long as they contain a magnetic body (a material that a magnet can be attached to), but for convenience, the object will be described as a "construction vehicle" as an example.

[0024] 1.Overview First, an overview of the present invention will be described with reference to Figures 1 and 2. Figure 1 is a perspective view showing a safety fence 100 of the present invention arranged around a construction vehicle CV. Also, Figure 2 is a partial perspective view of one of the five safety fences 100 shown in Figure 1. As shown in this figure, the safety fence 100 of the present invention is arranged around the construction vehicle CV, which prevents entry into the construction area set on the rear side of the construction vehicle CV (in Figure 1, the direction toward the depth of the page) or prevents approach to the construction vehicle CV itself, and as a result, it is possible to suppress entry into the construction area (or approach to the construction vehicle CV) by third parties.

[0025] The safety fence 100 of the present invention is L-shaped as shown in the figure, and is installed on the ground with a portion fixed to the construction vehicle CV. For convenience, the state shown in FIG. 2 will be referred to as the "use state". In other words, the safety fence 100 shown in FIG. 2 is the safety fence 100 in the use state. Also, as shown in FIG. 1, multiple safety fences 100 (five in the figure) can be arranged in a line along the construction vehicle CV, and the direction in which these safety fences 100 are lined up will be referred to as the "longitudinal direction", and the horizontal direction perpendicular to the longitudinal direction will be referred to as the "transverse direction".

[0026] 2.Security fence The security fence 100 of the present invention will be described in detail. The security fence installation method of the present invention is a method for installing the security fence 100. Therefore, the security fence 100 will be described first, and then the security fence installation method of the present invention will be described.

[0027] 3 is a side view showing a schematic diagram of the safety fence 100 in use. As shown in this figure, the safety fence 100 includes a post 110, an arm 120, and a tip member 130, and may further include a countersink, which will be described later.

[0028] The support 110 is configured to include a support body 111, a connecting portion 112, and a support member 113. Of these, the support body 111 is a cylindrical or rod-shaped so-called columnar member having a predetermined length (for example, 70 to 100 cm), and its cross section can be of various shapes such as a circle or a square. In the usage state, the support body 111 is disposed in a substantially vertical (including vertical) position, with the support member 113 attached to its lower end and the connecting portion 112 provided on its upper portion.

[0029] The support material 113 mainly supports the column body 111 on the ground. The support material 113 can be fixed to the column body 111 or can be attached detachably. When the support material 113 is fixed to the column body 111, it is preferable to fix it using various conventional joining techniques such as bolt joining and welding joining. On the other hand, when the support material 113 is made detachable, a part of the column body 111 can be fitted into the support material 113. For example, as shown in Figures 4(a) and 4(b), the support material 113 is composed of a base plate 113B and an insertion column 113P, and the lower end of the column body 111 is fitted into the hollow insertion column 113P, so that the support material 113 is attached detachably. Of course, the lower end of the column body 111 may be hollow and the insertion column 113P may be accommodated inside it.

[0030] The support material 113 (particularly, the base plate 113B) is a plate-like member having a predetermined thickness (for example, 4 to 6 mm), and its shape can be a rectangle (square in the figure) as shown in FIG. 4(b), a circle as shown in FIG. 4(c), or a cross as shown in FIG. 4(d). Note that FIG. 4 shows a detachable support material 113, but the support material 113 fixed to the support body 111 can also be in various shapes. Also, if an elastic material such as synthetic resin (for example, rubber) is attached to the bottom side of the support material 113, it can conform to the unevenness of the road surface and friction noise during installation is reduced, which is preferable.

[0031] The arm 120, like the support body 111, is a so-called cylindrical or rod-shaped columnar member having a predetermined length (for example, 70 to 100 cm), and its cross section can be various shapes such as circular or rectangular. As shown in FIG. 5, one end of the arm 120 (the right end in the figure) is pin-connected to the connecting part 112 of the support 110. Therefore, the arm 120 in the use state can rotate within a vertical plane (that is, around a horizontal axis) as shown by the arrow in this figure. Note that, if the arm 120 can be attached to the connecting part 112 so as to be rotatable, various conventional pin connection techniques such as a connection using a pin or a connection using a hinge can be used.

[0032] The tip member 130 is configured to include a magnet, and is attached to the end of the arm 120 on the side different from the end connected to the connecting portion 112 (i.e., the free end). Since the tip member 130 includes a magnet, the tip member 130 is magnetically attached to the construction vehicle CV including a magnetic material, and the arm 120 is fixed between the erected support 110 and the construction vehicle CV as shown in FIG. 3. In FIG. 3, the arm 120 is magnetically attached to the construction vehicle CV in a state where it is rotated until it is horizontal, but it is of course possible to magnetically attach the arm 120 to the construction vehicle CV in a state where it is positioned at any angle other than horizontal. For example, when a surface to be magnetically attached, such as the door of the construction vehicle CV (hereinafter referred to as the "magnetically attached surface"), is inclined by 10° from the vertical plane, the arm 120 may be rotated so as to be inclined by 10° from the horizontal plane, that is, the arm 120 may be positioned so that the axis of the arm 120 is perpendicular to the door (magnetically attached surface), and then the tip member 130 may be magnetically attached to the construction vehicle CV.

[0033] However, it may be difficult to arrange the arm 120 so that it is perpendicular to the surface to be magnetized. Therefore, it is preferable to configure the tip member 130 with a contact surface 131 and a ball joint 132 as shown in Fig. 6. In this case, the contact surface 131 is configured so that it contains a magnet, or the contact surface 131 itself is a magnet. The ball joint 132 is attached to the arm 120 so that it is rotatable about the axis of the arm 120. This allows the contact surface 131 to rotate three-dimensionally (within a three-dimensional space) not limited to a vertical plane (arrows shown in the figure), and the position can be flexibly changed according to the inclination of the surface to be magnetized.

[0034] The support pole 110 and the arm 120 can be colored or patterned to make them more noticeable. For example, the support pole 110 and the arm 120 shown in Fig. 7 have a so-called "tiger pattern" made of yellow and black. When coloring or patterning the support pole 110 and the arm 120, it is advisable to use a light-reflective material such as fluorescent paint so that they can be seen at night.

[0035] The support 110 and the arm 120 can also be configured to be extendable. For example, the support 110 and the arm 120 shown in FIG. 8 are made extendable by utilizing a telescopic (registered trademark) pick structure such as a crane boom or a surveying box scale (staff). More specifically, the support body 111 has a double tube structure of a first support body 111M and a second support body 111S, and a part of the second support body 111S is housed in the first support body 111M. The entire length of the support 110 can be adjusted by adjusting the length of the second support body 111S protruding from the first support body 111M. Similarly, the arm 120 has a double tube structure of a first arm 120M and a second arm 120S, and a part of the second arm 120S is housed in the first arm 120M. The entire length of the arm 120 can be adjusted by adjusting the length of the second arm 120S protruding from the first arm 120M.

[0036] As described above, the arm 120 is pin-connected at the connecting portion 112, and therefore the arm 120 can be folded so as to overlap with the support pole 110 (support pole body 111). By folding the arm 120 in this way, it is possible to save space when storing the security fence 100, and it also becomes easier to transport the security fence 100. However, because the arm 120 is free to rotate, if the arm 120 is held by the support pole 110 side, it will dangle downward, making it somewhat difficult to transport.

[0037] Therefore, a magnetic body (hereinafter, particularly referred to as a "bottom magnetic body") may be included in a part of the support 110 so that the arm 120 can be maintained in a folded state. The magnet of the tip member 130 is used to magnetically attach the folded arm 120 to the support 110. For this reason, the bottom magnetic body may be provided at the lower end of the support 110 in the used state. For example, in FIG. 9, the support member 113 (base plate 113B) is formed by a magnetic body, in other words, the support member 113 itself is the bottom magnetic body. As a result, the tip member 130 of the folded arm 120 is magnetically attached to the support member 113, and the state in which the support 110 and the arm 120 are overlapped is maintained, that is, the security fence 100 can be easily carried without the arm 120 sagging down.

[0038] The security fence 100 of the present invention can also be connected to another security fence 100 that is placed adjacently, as shown in Figure 1. In this case, a magnetic body (hereinafter, specifically referred to as "top magnetic body 114") is provided on the side of the connecting portion 112 of the post 110, as shown in Figure 10(a). This causes the tip member 130 (magnet) of the other security fence 100 to be magnetically attracted to the top magnetic body 114 of the security fence 100, connecting the adjacent security fences 100 to each other.

[0039] The left safety fence 100 shown in FIG. 10(b) is arranged so that its arm 120 is in the transverse direction (depth direction of the paper), and the central and right safety fences 100 are arranged so that their arms 120 are in the longitudinal direction. The left safety fence 100 has top magnetic bodies 114 on both sides of the arm 120, and the central safety fence 100 has top magnetic bodies 114 on the back side of the arm 120 (right side in the figure). As a result, the left safety fence 100, the central safety fence 100, and the right safety fence 100 are connected by using the top magnetic bodies 114 of the other side. In this way, by providing the top magnetic bodies 114 at various positions of the connecting part 112, it is possible to connect to safety fences 100 in various postures.

[0040] The support 110 may be provided with an insertion ring 115 for inserting the countermeasure material 140. In this case, it is preferable to provide the insertion ring 115 at the upper part of the support 110 in the use state. For example, in FIG. 11(a), the insertion ring 115 is provided so as to be located above the arm 120 (connecting part 112) in the use state. The insertion ring 115 may simply be an annular (ring-shaped) member, or a conventionally used connecting jig such as a carabiner may be used.

[0041] By providing insertion rings 115 on the posts 110, materials 140 such as poles and ropes can be arranged in the longitudinal direction. For example, in Fig. 11(a), three safety fences 100 are arranged in a line in the longitudinal direction, and materials 140 are arranged in the longitudinal direction by inserting them into the respective insertion rings 115.

[0042] 3.Security fence installation method Next, the security fence installation method of the present invention will be described. Note that the security fence installation method of the present invention is a method for installing the security fence 100 described up to this point. Therefore, we will avoid any overlapping explanation with the explanation of the security fence 100, and only explain the contents unique to the security fence installation method of the present invention. In other words, the contents not described here are the same as those explained in "2. Security Fence".

[0043] Fig. 12 is a flow diagram showing the flow of the main steps of the safety fence installation method of the present invention. When installing the safety fence 100 of the present invention, first, the posts 110 are erected at predetermined positions (Step 201 in Fig. 12), i.e., the safety fence 100 is placed around the construction vehicle CV. At this time, it is preferable to arrange a plurality of safety fences 100 in a line in the longitudinal direction, and to appropriately arrange the safety fences 100 with the arms 120 in the transverse direction (hereinafter referred to as "crossing safety fences 100") and the safety fences 100 with the arms 120 in the longitudinal direction (hereinafter referred to as "longitudinal safety fences 100").

[0044] Once the support post 110 is erected, the arm 120 associated with the crossing safety fence 100 is rotated until it assumes a prescribed position (Step 202 in FIG. 12), and the tip member 130 is magnetically attached to a part of the construction vehicle CV (Step 203 in FIG. 12). Then, the arm 120 associated with the longitudinal safety fence 100 is rotated until it assumes a prescribed position, and the tip member 130 is magnetically attached to the top magnetic body 114 of an adjacent safety fence 100, thereby connecting the safety fences 100 together (Step 204 in FIG. 12). [Industrial Applicability]

[0045] The safety fence and safety fence installation method of the present invention can be used when carrying out various construction works including electrical work. The present invention can prevent third parties from entering the construction area, i.e., it can prevent third party accidents during construction. Considering this, the invention can be expected to not only be used industrially but also to make a great contribution to society. [Explanation of symbols]

[0046] 100 Safety fence of the present invention 110 (security fence) post 111 (of a support) 111M (pillar body) 1st pillar body 111S (pillar body) 2nd pillar body 112 (pillar) joint 113 (pillar) support 113B (Support) Base Plate 113P (Support) Insertion Column 114 (pillar) top magnetic material 115 (Support) Insert Ring 120 (security fence) arm 120M (Arm) 1st Arm 120S (Arm) 2nd Arm 130 (Safety fence) end material 131 (of tip material) contact surface 132 (Tip) Ball Joint 140 (Security Fence) Materials CV Construction Vehicle

Claims

1. A fence that is placed around an object containing a magnetic material to prevent people from approaching the object, The pillars and An arm, A tip member including a magnet; The arm is connected to the support by a pin at one end and has the tip member attached to the other end. When the arm is rotated after the support is erected and the tip member is magnetically attached to the object, the arm is fixed between the support and the object. A security fence characterized by:

2. The support and / or the arm are extendable.

2. The security fence according to claim 1.

3. A top magnetic body made of a magnetic material is provided on a part of the support, The tip member of the other arm is magnetically attached to the top magnetic body.

2. The security fence according to claim 1.

4. The tip member has a contact surface formed thereon, The tip member is attached to the arm so that the angle of the contact surface with respect to the axial direction of the arm can be freely changed.

2. The security fence according to claim 1.

5. The top of the support is provided with an insertion ring through which a material can be inserted.

2. The security fence according to claim 1.

6. The lower end of the support in an upright state is configured to include a magnetic material, When the arm is folded and the tip member comes into contact with the support, the tip member is magnetically attached to the support.

2. The security fence according to claim 1.

7. A method for installing a security fence around an object including a magnetic material, comprising: The safety fence has a tip member including a post, an arm, and a magnet, The arm is connected to the support by a pin at one end and has the tip member attached to the other end. an arm rotating step of rotating the arm after the support pillar is erected; and an arm fixing step of fixing the arm between the support and the object by magnetically attaching the tip member of the arm to the object, The security fence installed around the object can prevent people from approaching the object. A method for installing a safety fence.

8. A top magnetic body made of a magnetic material is provided on a part of the support, The tip material of the arm is magnetically attached to the target object, and the top magnetic body of the safety fence is magnetically attached to the tip material of the arm related to the other safety fence.

8. The method for installing a safety fence according to claim 7.

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