Protective gear

The protective device for utility poles uses flexible materials to absorb and redirect mower impacts, addressing kickback risks and facilitating repair, ensuring safe mowing operations and reducing damage.

JP7603936B2Active Publication Date: 2024-12-23EAST JAPAN RAILWAY COMPANY +1
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Patent Information

Application Number
JP2021103186
Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
Filing Date
2021-06-22
Publication Date
2024-12-23
Estimated Expiration
2041-06-22

AI Technical Summary

Technical Problem

Conventional protective equipment for utility poles is prone to accidents and damage due to kickback phenomena when mowing near branch lines or poles, especially when weeds grow thickly, posing a danger to mowers and potentially causing wire breakage.

Method used

A protective device comprising a top and bottom plate with flexible protective materials, such as ropes or nets, that allow rotation around the branch line, supported by pillars, with through-holes for branch lines, enabling the flexible material to absorb and redirect the impact of a mower's cutting blade, reducing the risk of kickback and facilitating easy repair.

Benefits of technology

The device effectively prevents kickback accidents by allowing the flexible material to absorb and redirect the mower's impact, reducing damage to the mower and branch lines, while being easily repairable and adaptable to various installation environments.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

To provide a protection tool capable of relaxing an impact in a contact.SOLUTION: A protection tool 1 comprises a top plate 2 and a bottom plate 12 which are vertically arranged in parallel each other. Each of the top plate 2 and the bottom plate 12 is structured so that each outer periphery of resin plate materials 6 and 16 in which an upper penetration hole 6a and a lower penetration hole 16a are formed in a center is held by metal frame materials 4 and 14. A space between the top plate 2 and the bottom plate 12 is supported by four columns 10. Each column 10 is arranged in an annular shape with a diameter smaller than that of outer peripheral edges 4a and 14a of the top plate 2 and the bottom plate 12. Then, on the outer diameter side from the column 10, ten ropes 21 are vertically passed along the outer peripheral edges 4a and 14a of the top plate 2 and the bottom plate 12. Each of the top plate 2 and the bottom plate 12 is structured by two parts which are divided into two parts at the center, and can be opened and closed as using one end as a shaft. Each of the top plate 2 and the bottom plate 12 can be easily opened and closed by detaching / attaching a fixing pin 11 provided to each of them.SELECTED DRAWING: Figure 1
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Description

[Technical field]

[0001] The present invention relates to a protective device for protecting a guy wire used to prevent the collapse of a utility pole. [Background technology]

[0002] For example, if there is a horizontal imbalance that exceeds the standard value, the pole will need a guy wire. When designing a pole to withstand the tension from the overhead wire, weather changes are also taken into consideration, but large mounting brackets are often used to increase earthquake resistance as a countermeasure against earthquakes. Accordingly, protective equipment is also becoming larger.

[0003] 11 shows a conventional protective gear 200. It is configured with a cylindrical body 211 that has a larger space below an upper cylindrical body 210 that houses a branch line 201 so that a relatively large mounting bracket 202 can be housed therein. Such conventional protective gear 200 is disclosed in Patent Document 1. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Publication No. 58-075860 Summary of the Invention [Problem to be solved by the invention]

[0005] Depending on the location of the utility pole, weeds may grow thickly. Also, vines may grow along nearby support lines and poles. In such an environment, it is necessary to frequently cut the weeds. For grass cutting work, a lawnmower with a driving force is often used to improve work efficiency.

[0006] However, when mowing near a post or pole buried in weeds, the blade of the tipped saw may come into contact with the protective gear. In such cases, there is a risk of the grass cutter being knocked off the protective gear by the so-called kickback phenomenon, which can be very dangerous and cause an accident. There is also a risk of the grass cutter breaking through the protective gear and damaging the post or pole, resulting in unnecessary costs.

[0007] Therefore, an object of the present invention is to provide a protective gear that can absorb the impact when coming into contact with a tool such as a lawnmower. [Means for solving the problem]

[0008] In order to achieve the above-mentioned object, the protective gear of the present invention is a protective gear for protecting a protected object, and is characterized in that it comprises a top plate having an upper through hole formed in the center through which the protected object is positioned, a bottom plate arranged parallel to and below the top plate and having a lower through hole formed in the center, a flexible protective material arranged along the outer periphery of the top plate and the bottom plate, and a support pillar arranged in a circular shape around the protected object, inside the protective material, and supporting the space between the top plate and the bottom plate.

[0009] In addition to the above configuration, the protective equipment of the present invention is characterized in that the upper through hole of the top plate and the lower through hole of the bottom plate are formed with a space between them to allow rotation around the object to be protected.

[0010] In addition to the above configuration, the protective equipment of the present invention further comprises: It is characterized by being composed of a plurality of elongated members that are removably attached so as to span the space.

[0011] In addition to the above configuration, the protective equipment of the present invention is characterized in that the top plate and the bottom plate are configured to be separable so as to split the upper through hole and the lower through hole.

[0012] In addition to the above configuration, the protective gear of the present invention is characterized in that the object to be protected is a supporting wire of a utility pole. Effect of the Invention

[0013] As described above, according to the present invention, the protective material is disposed on the outer periphery side of the support pillars that support the space between the top and bottom plates, so when the blade of a lawnmower or the like hits it, the protective material comes into contact first. In such a case, since the protective material is flexible, it rotates together with the blade so as to grab it without bouncing it off. This makes it possible to prevent accidents caused by the kickback phenomenon.

[0014] In addition to the above effects, the present invention provides the upper through-holes of the top plate and the lower through-holes of the bottom plate spaced apart to allow rotation around the support wire, etc., so that when the blade of a lawnmower or the like strikes the device, the force can be released by the rotation of the entire device, preventing accidents caused by kickback.

[0015] In addition to the above effects, according to the present invention, the protective material is composed of multiple elongated members that span between the top and bottom plates, and is also removable, so if it is cut or damaged by a lawnmower, it can be repaired by partially replacing it. This makes maintenance easier and reduces costs.

[0016] Furthermore, according to the present invention, in addition to the above effects, the top plate and the bottom plate are configured to be separable so as to split the upper through-hole and the lower through-hole, which facilitates transportation and assembly work.

[0017] In addition to the above-mentioned effects, the present invention can also be attached to the support wires of utility poles, making it possible to protect wires that are easily cut by lawn mowers. [Brief description of the drawings]

[0018] [Figure 1] 1 is an overall perspective view of a protective gear according to a first embodiment of the present invention. [Diagram 2] 2 is a perspective view showing the state when the protector in FIG. 1 is opened to store the supporting wires. FIG. [Diagram 3]FIG. 1 is a diagram showing the protective gear in use. [Figure 4] FIG. 4 is a plan view showing the positional relationship between the protective gear and the cutting blade. [Diagram 5] FIG. 11 is an overall perspective view of a protective gear according to a second embodiment of the present invention. [Figure 6] 6 is a perspective view showing the state when the protector in FIG. 5 is opened to store the supporting wires. FIG. [Figure 7] 1A and 1B show a structure for attaching the net to the tabletop, where (a) is a perspective view of the attachment hook and (b) is a partially enlarged view showing the attachment process. [Figure 8] FIG. 11 is a perspective view showing a state in which protective equipment according to a third embodiment of the present invention is used. [Figure 9] 9A and 9B are views of the protector in FIG. 8 as viewed from the longitudinal direction, where (a) is a plan view and (b) is a bottom view. [Figure 10] FIG. 2 is a schematic diagram showing an example of a protective gear. [Figure 11] FIG. 1 is a diagram showing a conventional protective gear. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0019] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Protective gear according to an embodiment of the present invention will now be described with reference to the drawings.

[0020] (First embodiment) FIG. 1 is an overall perspective view of a protective gear 1 according to a first embodiment of the present invention. The protective gear 1 has a top plate 2 and a bottom plate 12 arranged parallel to each other vertically. The top plate 2 and the bottom plate 12 are supported by four supports 10. The distance between the top plate 2 and the bottom plate 12 is set to a dimension capable of accommodating metal fittings for attaching a support wire, as described later. The four supports 10 are arranged in a ring shape slightly inside the outer periphery of the top plate 2 and the bottom plate 12. Ten ropes 21 are arranged in a ring shape as flexible protective materials at positions along the outer periphery on the outer diameter side of the supports 10.

[0021] In the configuration according to this embodiment, a rope 21 made of Kevlar is used as the protective material. Both ends of the rope 21 are installed using terminal fittings 22 so as to span between the top plate 2 and the bottom plate 12. The terminal fittings 22 are crimped to the rope 21, and the rope 21 can be replaced together with the terminal fittings 22 by loosening the bolts 23 that secure the terminal fittings 22. As can be seen from FIG. 1, ten ropes 21 are installed at approximately equal intervals along the outer periphery 4a of the top plate 2 and the outer periphery 14a of the bottom plate 12.

[0022] The top plate 2 is configured so that a metal frame material 4 holds the outer periphery of a resin plate material 6. Similarly, the bottom plate 12 is configured so that a metal frame material 14 holds the outer periphery of a resin plate material 16.

[0023] An upper through hole 6a is formed in the center of the plate material 6 of the top plate 2, through which the support wire 100a and the support wire mounting bracket 100b (see FIG. 2 described later) for mounting the support wire 100a can be disposed. Hereinafter, the support wire 100a and the support wire mounting bracket 100b will be collectively referred to as the support wires 100 for ease of explanation, unless there is a need to distinguish between them. Similarly, a lower through hole 16a is formed in the center of the plate material 16 of the bottom plate 12, through which the support wires 100 can be disposed. These upper through hole 6a and lower through hole 16a are set to a size that allows a gap to be provided between them and the support wires 100 so as not to impede relative rotation, as described later.

[0024] The top plate 2 and the bottom plate 12 are composed of two parts that are divided at the positions of the central upper through-hole 6a and the lower through-hole 16a, respectively. The two divided parts are pivotally supported at one end on the outer periphery 4a, 14a side so that they can be opened and closed. They are fixed to the other end of the outer periphery 4a, 14a with a removable fixing pin 11 so that they can be fixed and released.

[0025] 2 is a perspective view showing how the protective gear 1 is opened to store the support wires 100. As described above, the protective gear 1 according to this embodiment can be easily opened by simply removing the fixing pins 11 provided on the top plate 2 and the bottom plate 12, respectively.

[0026] The upper through hole 6a of the top plate 2 and the lower through hole 16a of the bottom plate 12 do not need to be large enough to allow all the components of the support wires 100 to pass freely when the protective gear 1 is closed. In other words, they are formed to have a sufficient gap to allow the protective gear 1 to rotate around the support wires 100 after being stored. Specifically, the upper through hole 6a and the lower through hole 16a must be formed so that their diameters are smaller than the area in which the supports 10 are arranged (the area surrounded by the ring C2 shown in FIG. 4 later). At least, the opening diameters of the upper through hole 6a and the lower through hole 16a are preferably larger than the diameter of the support wires 100a and smaller than the maximum diameter of the support wires 100. This allows the protective gear 1 to be rotatably installed around the support wires 100a or the support wire mounting brackets 100b, and the support wires 100 are stably held in the approximate center of the protective gear 1 without interfering with the support wires 10.

[0027] Resin plates 6 and 16 are used in the portions that come into contact with the branch wires 100, so There is no risk of damaging the support wire 100. When the protector 1 rotates around the support wire 100, it is configured to slide easily due to friction between the metal member and the resin material.

[0028] FIG. 3 is a diagram showing the protective gear 1 in use. Depending on the installation location, as shown in FIG. 3, weeds W may grow around the support wires 100 and the protective gear 1. When surrounded by weeds W in this way, it is difficult to determine the position of the protective gear 1. In such a situation, when a powered grass cutter is used to remove the weeds W, contact with the grass cutter blade 101 (see FIG. 4 described later) becomes a problem. Next, an effect when the grass cutter blade 101 interferes will be described.

[0029] 4 is a plan view showing the positional relationship between the protective gear 1 and the cutting blade 101. The protective gear 1 is shown in cross section cut at the position where the rope 21 is provided. The cutting blade 101 is shown by a dotted line. The position where the rope 21 is arranged is shown by a circular ring C1, and the position where the support pole 10 is arranged is shown by a circular ring C2.

[0030] Generally, in a grass cutter, the blade 101 rotates in a counterclockwise direction when viewed from above. Mowing work must also be done in the same counterclockwise direction. In FIG. 4, a quarter of the blade 101 is shown shaded. This area is the rotation range where the so-called kickback phenomenon occurs (hereinafter referred to as the danger area R). If the blade 101 comes into contact with a fixed object other than the work subject in this danger area R, the recoil will cause the blade 101 to be knocked back, which is extremely dangerous. Therefore, to prevent the kickback phenomenon from occurring, it is necessary to cut grass in a rotation range forward and to the left of the shaded danger area R.

[0031] However, as shown in Figure 3, if the protective gear 1 is buried in weeds W, it is difficult to determine its location, and there is a possibility that the above-mentioned danger area R may come into contact with the protective gear 1 in poor visibility.

[0032] In contrast, as described above, in the configuration according to the present embodiment, the rope 21 made of Kevlar is disposed on the outermost side as a protective material. Therefore, it is this rope 21 that comes into contact with the blade 101 first. Even if the rope 21 comes into contact with the danger area R of the blade 101, the rope 21 made of Kevlar has flexibility, so there is no reaction that bounces the blade 101. And since the rope 21 is made of a material that is resistant to cutting, it is not easily cut and moves away to rotate together with the rotation of the blade 101. If the blade 101 is further advanced in this state, the rope 21 gets entangled with the rotating shaft of the blade 101. In this case, in the case of a recent grass cutter, whether it is an electric type or an engine type, if an excessive load is applied, the protective device is activated, so that the power is immediately cut off and the blade 101 is safely stopped. Thus, according to the configuration according to the present embodiment, even if the danger area R of the blade 101 interferes, it is possible to safely stop the blade 101 without causing the kickback phenomenon.

[0033] However, contact does not always occur in the manner described above. Therefore, the movement of the protective gear 1 when the rope 21 is cut will be described.

[0034] If the blade 101 cuts the rope 21 that it first comes into contact with without being caught by it, there is a possibility that the blade 101 will penetrate as far as the position of the ring C2 and come into contact with the support post 10 arranged on the inside. At this time, there is a possibility that the blade 101 will be bounced off the support post 10. However, the protective gear 1 according to this embodiment is not configured to be fixed to the ground, but is provided so as to be rotatable around the support wires 100, as described above. Therefore, part of the rotational force of the blade 101 is dispersed by the rotation of the protective gear 1. Then, as a result of the rotation, the rope 21 adjacent to the cut rope 21 moves to a position where it can come into contact with the blade 101. At this time, the rotational force of the blade 101 Since the force of the protective gear 1 is reduced, there is a high possibility that the approaching rope 21 will get entangled without being cut. If the rope can be successfully entangled, it is possible to activate the protective device and safely stop the rope 21 as in the above-mentioned pattern. Even if the second rope 21 is also cut, the next rope 21 will move due to the rotation of the protective gear 1, and the rotational force of the cutting blade 101 will also be greatly reduced, so there is a high possibility that the rope 21 will be safely entangled.

[0035] Since the protective material is divided into a plurality of ropes 21, it can be easily repaired by replacing only the cut rope 21, and the repair cost can be kept low.

[0036] (Second embodiment) 5 is an overall perspective view of a protective gear 30 according to a second embodiment of the present invention. Here, the same components as those shown in the drawings in the first embodiment are denoted by the same reference numerals and will be described.

[0037] The configuration including a top plate 2 and a bottom plate 12 on the top and bottom is the same as the protective gear 1 shown in the first embodiment. The configuration of the support pillars 10 that support the top plate 2 and the bottom plate 12 is also the same. However, the protective material provided along the outer periphery 4a, 14a of the top plate 2 and the bottom plate 12 is different from the configuration of the first embodiment.

[0038] In the configuration according to the present embodiment, the protective material is composed of a net 31, not a rope 21. Ten elongated nets 31 are arranged along the outer periphery 4a, 14a of the top plate 2 and the bottom plate 12. Each net 31 is provided so as to span between the top plate 2 and the bottom plate 12 by a metal fitting described later. These nets 31 are made of high-density polyethylene material that is flexible and has excellent impact resistance in the tensile direction. Note that, as long as a certain level of strength can be obtained, not only high-density polyethylene material but also low-density polyethylene material can be used. When low-density polyethylene material is used, the protective equipment can be constructed at low cost. Also, it may be constructed by combining high-density and low-density polyethylene materials.

[0039] 6 is a perspective view showing the state when the protective gear 30 is opened to store the support wires 100. As with the configuration of the protective gear 1 shown in FIG. 2, it can be easily opened by simply removing the fixing pins 11 provided on the top plate 2 and the bottom plate 12. As can be seen from FIG. 6, the radial distance between the four supports 10 arranged in a circular ring on the inside and the net 31 is approximately the same as the radial distance between the supports 10 and the ropes 21 in FIG. 2.

[0040] FIG. 7 shows a structure for attaching the net 31 to the top plate 2 or the bottom plate 12, where (a) is a perspective view of the attachment hook 32 and (b) is a partially enlarged view showing the attachment operation.

[0041] The mounting hook 32 has two claws 32a that extend across the front and back surfaces of the top plate 2 or bottom plate 12, and are integrally formed on the base 32b side. It can be fixed to the top plate 2 or bottom plate 12 by fastening the base 32b side with a bolt 34. Also, by slightly loosening the bolt 34, it becomes possible to slide radially outward along the top plate 2 or bottom plate 12, and the gap between the claws 32a and the outer circumferential edges 4a, 14a can be opened.

[0042] FIG. 7(b) shows a state in which the bolt 34 is loosened and the mounting hook 32 is pulled out to the outer diameter side. In this manner, the net 31 can be easily placed by simply hooking a part of it with the gap between the claw portion 32a and the outer periphery 4a, 14a of the top plate 2 or the bottom plate 12 open. After hooking, the net 31 is slid back to the center in the radial direction and fastened with the bolt 34 to complete the fixation. The rope 21 used in the protective gear 1 of the first embodiment required terminal fittings 22 to be crimped on both ends and then bolted to the top plate 2 and the bottom plate 12, but in the configuration of this embodiment, there is no need to process the net 31 side in advance.

[0043] As configured as above, when the blade 101 (see FIG. 4) of the grass cutter hits the area between the top plate 2 and the bottom plate 12 of the protective gear 30, the net 31 comes into contact first. In the configuration according to the present embodiment, the protective material is formed in the shape of the net 31, so even if a part of it is cut off, it can be entangled with the blade 101 as long as it is connected at other parts. In addition, since it is formed in the shape of the net 31, it is highly elastic. Therefore, it is possible to rotate together with the blade 101 and snatch it while flexibly absorbing the impact when the blade 101 comes into contact. Furthermore, even if the net 31 that first comes into contact is cut off, the entire protective gear 30 rotates around the support wires 100 due to the force at the time of cutting and the reaction force based on the contact with the support 10, and it is highly likely that it can be snatched by the adjacent net 31. In this way, by receiving the impact softly with a soft material, the grass cutter can be stopped safely while preventing the kickback phenomenon, and damage to the grass cutter can also be reduced. Moreover, similarly to the rope 21 of the first embodiment, the protective material is configured by dividing it into a plurality of nets 31, so that the efficiency of maintenance work is improved.

[0044] (Third embodiment) Fig. 8 is a perspective view showing a state in which protective gear 50 according to a third embodiment of the present invention is used. Fig. 9 is a view of the protective gear 50 in Fig. 8 as seen from the longitudinal direction, where (a) is a plan view and (b) is a bottom view.

[0045] As shown in Fig. 8, depending on the installation environment of the utility pole, two support wires 100c, 100d may be required. In such a case, the two support wires 100c, 100d are stretched at different angles. The ground positions of the two support wires 100c, 100d stretched at different angles are generally the same, and the utility pole is supported at different positions.

[0046] Fig. 8 shows an example in which the angle between the upper and lower support wires 100c, 100d is set to about 4 degrees. Protective gear 50 is installed for these two support wires 100c, 100d. Protective gear 50 has a top plate 52 made of a frame material 54 and a plate material 56, and a bottom plate 62 made of a frame material 64 and a plate material 66 (see Fig. 9(b)).

[0047] 9(a), it can be seen that the opening diameter D1 formed in the plate material 56 of the top plate 52 is set to be larger than the opening diameter D2 formed in the plate material 66 of the bottom plate 62, which differs from the configurations of the first and second embodiments described above. With this configuration, even when the spacing between the two branch wires 100c, 100d is widened, they can be accommodated inside the top plate 52, which is formed relatively large.

[0048] In addition, even if there is only one branch line 100a (see FIG. 2) as in the first and second embodiments, if a relatively large part is used for the branch line 100, there is a possibility of interference if the branch line 100 has a height similar to that of the top plate 52. However, if the opening diameter D1 of the top plate 52 is set to a sufficient size so as not to interfere with the branch line 100, the protector 50 can be installed regardless of the height position of the branch line 100, and the rotation of the protector 50 is not hindered when the cutting blade 101 (see FIG. 4) comes into contact with the branch line 100a. As shown in FIG. 2, even if there is only one branch line 100a, if the branch line mounting bracket 100b or the like having a relatively large diameter is in a positional relationship in which the protector 50 does not interfere with the branch line 100a, the protector 50 can be used upside down so that the bottom plate 62 side with the smaller opening is positioned upward, and the protector 50 is highly versatile.

[0049] The configuration described above is one example of the present invention, and further includes the following modified examples.

[0050] (1) In the above embodiment, the rope 21 or net 31 is divided and arranged as a protective material. However, as long as the protective material has flexibility that allows it to absorb the impact of the cutting blade 101, it may be formed integrally.

[0051] (2) In the above embodiment, a configuration in which four support posts 10 and ten protective materials (ropes 21 or nets 31) are arranged is shown as an example. However, a configuration different from these numbers may be used. For example, a configuration in which the number of support posts 10 is greater than the number of divided protective materials may be used. Also, a configuration in which the protective materials can be wrapped around the top plate 2 and the bottom plate 12 may be used as an integrated configuration.

[0052] (3) In the above embodiment, the resin plate members 6, 16 are used on the central side of the top plate 2 and the bottom plate 12. However, the plate members are not limited to resin as long as the protector can rotate around the support wires 100. For example, a rotatable structure may be provided in the upper through hole 6a or the lower through hole 16a.

[0053] (4) In the above embodiment, the ropes 21 and nets 31 used as protective materials are shown as examples having the same shape. However, they may be configured with different shapes. Furthermore, the ropes 21 and nets 31 may be used in combination.

[0054] (5) In the above embodiment, the top plate 2 and the bottom plate 12 are each divided into two parts at the center. However, the top plate 2 and the bottom plate 12 may be divided into three or more parts as long as they are divided at the positions of the upper through-hole 6a and the lower through-hole 16a. Furthermore, the divided parts do not have to have the same shape. Specifically, the central angles of the division may be 180 degrees, 90 degrees, and 90 degrees.

[0055] (6) In the above embodiment, the upper through hole 6a and the lower through hole 16a are formed to be the same size. However, the sizes may be different. For example, the diameter of the side through which the large branch wire mounting bracket 100b is inserted may be set larger than the diameter of the side through which the branch wire 100a is inserted.

[0056] (7) In the above embodiment, the guy wires and poles supporting utility poles are shown as examples of objects to be protected. However, the objects to be protected are not limited to guy wires and poles, but rather broadly include linear structures erected on the ground.

[0057] Here, "installed upright on the ground" does not only include one end buried in the ground, but also one end fixed to the ground, and includes various installation angles from inclined to vertical.

[0058] In addition, the term "linear structure" refers to a structure that is generally long, and does not include only structures that are homogeneous in the longitudinal direction. For example, as shown in the embodiment, a structure that combines a wire such as the branch wire 100a and a branch wire mounting bracket 100b is collectively referred to as a linear structure.

[0059] Furthermore, the above-mentioned linear structures also include utility poles and snow gauges that are erected vertically on the ground, and signal lines with one end elevated and fixed above the ground.

[0060] FIG. 10 is a schematic diagram showing an example of a protected object. As described above, the protected object includes the support wires that support utility poles. In FIG. 10, the support wires are composed of a support wire 100a and a support wire mounting bracket 100b. Support wire mounting bracket 100b is also called a support wire rod that is connected to an anchor A buried in the ground G. Support wire 100a shown in FIG. 10 is a wire formed of twisted wire, and is called a messenger wire or support wire. Thus, the protected object that is the subject of the present invention includes the following objects as shown in FIGS. 2 and 8. This includes not only the types of support lines shown in Fig. 1, but also configurations such as those shown in Fig. 10.

[0061] The above-mentioned protective gear 1, 30, 50 is shown diagrammatically by dotted lines in Fig. 10. In this way, the protective gear 1, 30, 50 covers and protects the connection portion between the guy rod and the wires, so that the wires can be prevented from being damaged by a lawnmower or the like. [Industrial Applicability]

[0062] The protective gear of the present invention is configured to safely absorb the impact of interference with the blade of a lawnmower, and is therefore also useful for protecting temporary scaffolding installed at construction sites, etc. [Explanation of symbols]

[0063] 1 Protective equipment 2. Tabletop 4 Frame material 4a Outer rim 6 Board material 6a Upper through hole 10 pillars 11 Fixing pin 12 Bottom plate 14 Frame material 14a Outer rim 16 Board material 16a Lower through hole 21 Rope (protective material) 22 Terminal fitting 23 Volts 30 Protective equipment 31 Net (protective material) 32 Mounting hook 32a Claw part 32b base 34 Volts 50 Protective equipment 52 Tabletop 54 Frame material 56 Board material 62 Bottom plate 64 Frame material 66 Board material 100 branch lines 100a branch line 100b branch line mounting bracket 100c, 100d branch line 101 Cutting blade C1, C2 Circular D1, D2 opening diameter A anchor G Ground R Danger Area W Weed

Claims

1. A top plate having an upper through hole formed in the center through which the object to be protected is inserted; A bottom plate arranged downward and parallel to the top plate and having a downward through hole formed at the center; a flexible protective material disposed along the outer periphery of the top plate and the bottom plate; a support pillar that is disposed around the object to be protected on the inner side of the protective material and supports the top plate and the bottom plate; A protective gear characterized by comprising:

2. 2. The protective gear according to claim 1, wherein the upper through-hole of the top plate and the lower through-hole of the bottom plate are formed at a distance sufficient to allow rotation around the object to be protected.

3. 3. The protective gear according to claim 1, wherein the protective material is composed of a plurality of elongated members that are detachably attached so as to span between the top plate and the bottom plate.

4. 4. The protective gear according to claim 1, wherein the top plate and the bottom plate are configured to be separable so as to split the upper through hole and the lower through hole.

5. 5. The protective gear according to claim 1, wherein the object to be protected is a supporting wire of a utility pole.

Citation Information

Patent Citations

  • Bird deterrent

    GB2382296A

  • JP1982198252U

  • The pole guy protector

    JP1983075860U

  • Anchor of bird harm-preventing device for electric wire or the like

    JP1991089808A

  • Tool for preventing vine twining for power-pole stay wire, and wire fastener

    JP2009118751A