JP6488791B2 - Protective member support device - Google Patents

Description

  The present invention relates to a protection member support device used for protection of an overhead distribution line and a method for installing the protection member.

  When working around the overhead distribution line, for example, a tubular member called a protective tube is attached to the overhead distribution line to eliminate the risk of electric shock due to the operator inadvertently approaching the live part. In order to make the overhead power distribution lines stand out, attention was paid to prevent heavy equipment booms from coming into contact.

  Further, as related technologies, specifically, for example, conventionally, for example, a sheet-like protective member (protective sheet body) that covers the protective object, and the protective member and the protective object that are attached to the protective object are predetermined. There has been a technique related to a protective device including a separation holder that is supported by being kept at a distance equal to or greater than (see, for example, Patent Document 1 below).

  In addition, as a related technique, for example, a winding shaft around which a sheet-shaped protective member (protective curtain) is wound is installed so as to be parallel to the utility pole using an indirect hot wire tool, and the protection is performed. There has been a technique relating to a protective device in which a member is pulled out using an indirect hot wire tool and attached to a predetermined site and a method for installing the protective device (see, for example, Patent Document 2 below).

JP 2005-318696 A JP 2013-51783 A

  However, for example, the protective tube attached to the overhead distribution line is a mark, and does not have an insulation performance for ensuring the insulation of an operator working around the overhead distribution line. Further, in the conventional technology for attaching a protective pipe to an overhead distribution line, the protective pipe may be exposed to the wind and come off from the overhead distribution line. As described above, the conventional technique for attaching the protective pipe to the overhead distribution line has a problem that it is difficult to ensure sufficient safety for the operator.

  Moreover, the protective tube attached to the overhead distribution line is a mark, and does not directly protect the overhead distribution line. For this reason, the conventional technique of attaching a protective tube to an overhead distribution line has a problem that it is difficult to prevent damage to the overhead distribution line when a boom or the like of a heavy machine comes into contact.

  Furthermore, when installing a protective tube, if the worker attaches the protective tube directly to the overhead distribution line, there is a high risk of electric shock, and when using the indirect hot wire method, handling of the long protective tube is troublesome. There was a problem that the burden on the company was heavy.

  In addition, for example, the conventional technique described in Patent Document 2 described above has a problem that there are many members for installation of the protective member, the installation work is complicated, and the burden on the operator is large. In addition, the conventional technique described in Patent Document 1 described above is inferior in workability because of the use of a heavy member, has a large burden on overhead distribution lines and the like, and has a large burden on workers. there were.

  The present invention provides a protection member support device and a protection member installation method capable of reliably protecting an aerial distribution line and ensuring the safety of an operator in order to solve the above-described problems caused by the prior art. The purpose is to do.

  In addition, the present invention eliminates the problems caused by the above-described prior art, and thus protects the overhead distribution line, ensures the safety of the worker, and reduces the burden on the worker. It is an object of the present invention to provide a member support device and a method for installing a protective member.

  In order to solve the above-described problems and achieve the object, a protective member support device according to the present invention is provided with a base portion having a bar shape and a suspension attached to an aerial distribution line by suspension. And a first support portion that is provided at the other end of the base portion and supports the sheet-like protective member.

  The protective member support device according to the present invention is characterized in that, in the above invention, the base portion has a tube shape.

  Further, the protective member support device according to the present invention has a rod shape according to the above invention, one end is connected to the base, and protrudes from the one end in a direction inclined with respect to the axial direction of the base. The arm part provided with the 2nd support part which supports a sheet-like protection member at the end was provided.

  In the protective member support device according to the present invention, in the above invention, the arm portion is rotatable about one end connected to the base portion as a fulcrum. It is selectively displaced to the 1st state which protrudes in the direction which inclines with respect to a direction, or the 2nd state which becomes substantially parallel to the axial center direction of the said base.

  Further, the protective member support device according to the present invention is characterized in that, in the above-mentioned invention, a reinforcing member having a bar shape and having a connecting portion that is separably connected to the base at both ends is provided. To do.

  Further, the protective member installation method according to the present invention includes a rod-shaped base, a suspension provided at one end of the base, and attached to the overhead distribution line by suspension, and provided at the other end of the base. And attaching the suspension portion in the protective member support device, which includes a first support portion that supports the sheet-like protective member, to the overhead distribution line, thereby attaching the protective member support device to the overhead wire. A plurality of protection members are fixed to the distribution line, and the protection members are stretched between the first support portions of the plurality of protection member support devices fixed to the overhead distribution line.

  According to the protective member support device and the method of installing the protective member according to the present invention, it is possible to reliably protect the overhead distribution line and reduce the burden on the worker for protecting the overhead distribution line. Play.

  According to the protective member support device and the protective member installation method according to the present invention, it is possible to reliably protect the overhead distribution line, to ensure the safety of the worker, and to reduce the burden on the worker. There is an effect that it is possible to provide a protective member support device and a method of installing the protective member.

It is explanatory drawing which shows the member support apparatus for protection of embodiment concerning this invention. It is explanatory drawing (the 1) which shows a part of protection member support apparatus of embodiment concerning this invention. It is explanatory drawing (the 2) which shows a part of protection member support apparatus of embodiment concerning this invention. It is explanatory drawing (the 3) which shows a part of protection member support apparatus of embodiment concerning this invention. It is explanatory drawing (the 4) which shows a part of protection member support apparatus of embodiment concerning this invention. It is explanatory drawing which shows the example of installation of the protection net | network using the protection member support apparatus of embodiment concerning this invention.

  Exemplary embodiments of a protective member support device and a protective member installation method according to the present invention will be explained below in detail with reference to the accompanying drawings.

  First, the structure of each part which comprises the protection member support apparatus of embodiment concerning this invention is demonstrated. FIG. 1 is an explanatory view showing a protective member support apparatus according to an embodiment of the present invention. 2, FIG. 3, FIG. 4 and FIG. 5 are explanatory views showing a part of the protective member supporting apparatus according to the embodiment of the present invention.

  1, FIG. 2, FIG. 3, FIG. 4 and FIG. 5, a protective member support apparatus 100 according to an embodiment of the present invention includes a plurality of suspension members 101. In the protective member support apparatus 100 shown in FIG. 1, four suspension members 101 are used. In FIG. 2, the suspension member 101 is shown, and in FIG. 3, a part of the suspension member 101 is shown. As shown in FIGS. 2 and 3, each suspension member 101 includes a base portion 102 having a bar shape. The base 102 has a cylindrical shape with both ends released, that is, a hollow shape.

  At one end of the base portion 102, a suspension portion 103 attached to the overhead distribution line is provided. The suspension part 103 includes a hook member 104, a pressing member 105, and a screw shaft 106, and has a strangling tong-like structure. The hook member 104, the pressing member 105, and the screw shaft 106 can be formed using, for example, a conductive material such as a metal material.

  The hook member 104 has a curved shape. The pressing member 105 is provided on the curved inner side of the hook member 104. In the pressing member 105, a concave portion 105 a that is curved in a direction away from the curved inner side of the hook member 104 is provided on the side facing the curved inner side of the hook member 104. In the pressing member 105, one end of the screw shaft 106 is connected to the side opposite to the recess 105a.

  The screw shaft 106 has a substantially cylindrical shape and is provided with a screw thread 106a on the outer peripheral surface. The axial center direction of the screw shaft 106 is parallel to the axial center direction of the base portion 102. A helical gear 301 is screwed onto the screw shaft 106. Another lotus gear 302 is connected to the lotus gear 301. An operation shaft 107 parallel to the axis of the other helical gear 302 is connected to another helical gear 302. The operation shaft 107 protrudes outside the hook member 104.

  The operation shaft 107 can be rotated by, for example, a ratchet wrench (not shown). When the operating shaft 107 rotates in the suspension portion 103, the rotation of the operating shaft 107 is transmitted to the helical gear 301 via another helical gear 302, and the helical gear 301 rotates. The rotation of the helical gear 301 is transmitted to the screw shaft 106 screwed into the helical gear. The screw shaft 106 moves the pressing member 105 along the direction in which the pressing member 105 is in contact with and away from the curved inner side of the hook member 104 according to the rotation direction (see FIG. 3).

  At the other end of the base portion 102, a first support portion 108 for supporting a protective net as a sheet-like protective member is provided. The first support portion 108 has a lever cranican-like or lever-nascan-like structure constituted by a support hook 109 and an operation lever 110 that are curved in a bowl shape.

  The operation lever 110 has a substantially “<” shape and is connected to the support hook 109 at the bent portion. The operation lever 110 is provided so as to be rotatable about a connection position with respect to the support hook 109 as a fulcrum, and is displaced between a closed position that forms a ring shape with the support hook 109 and an open position that partially opens the ring shape. It is possible.

  The first support unit 108 includes a locking mechanism (not shown) that locks the operation lever 110 positioned at the closed position to the support hook 109. For example, the locking mechanism locks the operation lever 110 located at the closed position to the support hook 109 by providing projections on the operation lever 110 and the support hook 109 and engaging the projections. It can be configured. Alternatively, the locking mechanism may be configured such that, for example, a protrusion is provided on one of the operation lever 110 and the support hook 109, a groove is provided on the other, and the operation lever 110 positioned at the closed position is fitted by fitting the protrusion into the groove. The structure which latches to the hook 109 for support may be sufficient.

  In the base portion 102, an arm portion 111 is provided between the suspension portion 103 and the first support portion 108. The arm portion 111 has a rod shape, and one end is connected to the base portion 102. The arm portion 111 is rotatably connected to the base portion 102 with one end connected to the base portion 102 as a fulcrum. The arm portion 111 is rotated in a first state (see FIG. 4A) protruding in a direction inclined with respect to the axial direction of the base portion 102, or substantially in the axial direction of the base portion 102. It can be selectively displaced to the second state (see FIG. 4D) that is parallel.

  The base portion 102 is provided with a supporting member 112 that supports the arm portion 111. The support member 112 has a rod shape, and one end is provided near the middle in the length direction of the arm portion 111. One end of the support member 112 is provided so as to be rotatable around a connection position with the arm portion 111. The other end of the support member 112 is connected to a position away from the suspension part 103 from the connection position of the arm part 111 in the base part 102.

  The other end of the support member 112 is provided so as to be rotatable around a connection position with the base 102. The support member 112 includes a joint 113 that bends in the middle in the length direction. The arm portion 111 can be rotated from the first state to the second state or from the second state to the first state by bending the support member 112 at the joint 113 (FIG. 4A). ) To FIG. 4 (d)).

  When the arm portion 111 is in the first state, the support member 112 serves as a replacement rod and supports the arm portion 111. When the arm portion 111 is in the first state, the weight of the arm portion 111 is applied to the support member 112, so that the support member 112 is stretched between the arm portion 111 and the base portion 102.

  When the suspension member 101 is not used, such as during transportation, the arm portion 111 can be rotated from the first state to the second state by applying a force that bends the joint 113 to the support member 112. . Thereby, in the protective member support apparatus 100, the arm part 111 is set to the first state when in use, and the arm part 111 is set to the second state when not in use, thereby ensuring good transportability when not in use. can do.

  In the arm portion 111, a second support portion 114 is provided at an end portion opposite to the side connected to the base portion 102. The second support portion 114 has a lever cannican-like or lever-nascan-like structure constituted by the hook 109 for support curved in a bowl shape and the operation lever 110, and has the same configuration as the first support portion 108 described above. Make. Further, the second support portion 114 includes a locking mechanism similar to the locking mechanism in the first support portion 108 described above. Thereby, also in the 2nd support part 114, the position of the operation lever 110 with respect to the hook 109 for support can be fixed.

  The protective member support apparatus 100 according to the embodiment of the present invention includes a plurality of reinforcing members 115. In the protective member support apparatus 100 shown in FIG. 1, two reinforcing members 115 are used. As shown in FIG. 5, the reinforcing member 115 is configured by incorporating a small cylindrical member 117 inside a large cylindrical member 116 out of two hollow cylindrical members having different diameters. On the inner side of the large columnar member 116 and the outer side of the small columnar member 117, a barb is omitted at the periphery. This prevents the small columnar member 117 from falling off the large columnar member 116.

  At both ends of the reinforcing member 115, connecting portions 118 are provided. The connecting portion 118 has a lever cannican-like or lever-nascan-like structure formed by a supporting hook 109 and an operation lever 110 that are curved in a bowl shape, and has the same configuration as the first supporting portion 108 described above. Further, the connecting part 118 includes a locking mechanism similar to the locking mechanism in the first support part 108 and the second support part 114 described above. Thereby, also in the connection part 118, the position of the operating lever 110 with respect to the hook 109 for support can be fixed.

(Protection net installation procedure)
Next, a procedure for installing a protective net (a sheet-shaped protective member) using the protective member support apparatus 100 will be described. When installing a protective net using the protective member support apparatus 100, first, the suspension member 101 is attached to the overhead distribution line. When attaching the suspension member 101, first, the joint 113 of the support member 112 is extended so that the arm portion 111 of the suspension member 101 protrudes from the base portion 102.

  The suspension member 101 that protrudes the arm portion 111 from the base portion 102 may be all the suspension members 101 related to the installation of the protective net, or may be a part of the suspension members 101. Specifically, for example, when it is clear that the boom of a heavy machine contacts only from one side of the overhead distribution line, such as when the work is performed only on one side of the overhead distribution line, Of the suspension members 101 used for the installation of the protective net, only the arm portions 111 of some suspension members 101 attached to the side with the possibility of contact may be projected from the base portion 102.

  Next, the suspension part 103 is fixed to an aerial distribution line. When fixing the suspension portion 103, first, using an indirect hot wire tool, the hook member 104 in the suspension portion 103 is hooked on the overhead distribution line, and the overhead member is suspended between the curved inner side of the hook member 104 and the holding member 105. Position the distribution line. Next, a ratchet wrench socket is fitted into the operation shaft 107 using a rotating common operation rod or the like, and the operation shaft 107 is rotated. Thereby, the holding member 105 approaches the curved inner side of the hook member 104, the overhead distribution wire is held between the curved inner side of the hook member 104 and the holding member 105, and the suspension portion 103 can be fixed to the overhead distribution wire.

  After each of the four suspension members 101 is attached to the overhead distribution line, a protective net is attached to the first support portion 108 of each suspension member 101. When the protective net is attached, the protective net is hooked on the support hook 109 in the first support portion 108 and then the operation lever 110 in the first support portion 108 is operated to A ring is formed by the operation lever 110. As a result, the protective net can be reliably supported, and the protective net can be stretched below the overhead distribution line.

  Next, a protective net is attached to the second support portion 114 of the protruding arm portion 111. When attaching the protective net, similarly to the first support portion 108, after the protective net is hooked on the support hook 109 in the second support portion 114, the operation lever 110 in the second support portion 114 is operated. The support hook 109 and the operation lever 110 form a ring. As a result, the protective net can be reliably supported, and the protective net can be stretched directly below and to the side of the overhead distribution line.

(Example of installation of protective net)
FIG. 6 is an explanatory view showing an installation example of a protection net using the protection member support device 100 according to the embodiment of the present invention. FIG. 6 shows an installation example of the protection net 600 using the protection member support device 100 according to the embodiment of the present invention when the work using the heavy machinery is performed below the overhead distribution line. .

  In FIG. 6, the protective member support device 100 is configured such that the protective net 600 is positioned below the overhead distribution line 601 and in a range where the boom 603 of the heavy equipment 602 may approach. Is installed. By protecting the aerial distribution line 601 using the protection member support device 100, the aerial distribution line 601 can be reliably protected even in a site where there is no support such as the utility pole 604 nearby.

  As described above, the protective member support apparatus 100 according to the embodiment of the present invention is provided with a base portion 102 having a rod shape and one end of the base portion 102 and is attached to the aerial distribution line 601 by suspension. The suspension portion 103 and the first support portion 108 that is provided at the other end of the base portion 102 and supports the protective net are provided.

  According to the protective member support device 100 of the embodiment of the present invention, the protective net is provided by the first support portions 108 in the plurality of protective member support devices 100 attached to the overhead distribution line 601 by suspension. By supporting each 600, the protective net 600 can be stretched below the overhead distribution line. As a result, if the heavy equipment 602 is operated with the tip of the boom 603 of the heavy equipment 602 positioned at a position higher than the specified height, the protective equipment is used prior to contact with each overhead distribution line 601. The member support device 100 is contacted.

  As a result, the boom 603 of the heavy machine 602 directly contacts the overhead distribution line 601 and external force is directly applied to the overhead distribution line 601 from the boom 603 of the heavy machine 602, causing the overhead distribution line 601 to be damaged or broken. Can be prevented.

  When the boom 603 or the like of the heavy machine 602 contacts the protective net 600 prior to the overhead distribution line 601, external force applied from the boom 603 of the heavy machine 602 can be absorbed by the deformation of the protective net 600. Thereby, even when the protection member support apparatus 100 is suspended from the overhead distribution line 601, external force (impact) applied to the overhead distribution line 601 from the boom 603 of the heavy machine 602 can be reduced.

  Further, when the protective net 600 is installed, the base 102 can be installed by attaching the suspension part 103 to the overhead distribution line 601, and the first support part 108 is attached by installing the base 102. Can do. Then, the protection net 600 can be installed below the overhead distribution line 601 simply by stretching the protection net 600 between the first support portions 108 provided at the other ends of the respective base portions 102.

  Thereby, compared with the case where the 1st support part 108 is made into a different body from the base 102, the work burden concerning installation of the protection net | network 600 can be reduced. In addition, this makes it possible to reliably protect the overhead distribution line 601 even at a site where there is no fixed structure such as the utility pole 604.

  Further, by providing the suspension portion 103 and the first support portion 108 integrally with the base portion 102, the number of parts constituting the protection member support device 100 can be suppressed, and the weight of the protection member support device 100 can be reduced. it can. Thereby, the weight applied to the overhead distribution line 601 for the installation of the protective net 600 can be suppressed, the load applied to the overhead distribution line 601 can be suppressed, and damage and disconnection of the overhead distribution line 601 can be more reliably suppressed. Can do.

  The protective member support apparatus 100 according to the embodiment of the present invention is characterized in that the base portion 102 has a tubular shape.

  According to the protective member support apparatus 100 of the embodiment according to the present invention, the protective member support apparatus 100 can be reduced in weight. Thereby, the weight applied to the overhead distribution line 601 for the installation of the protective net 600 can be suppressed, the load applied to the overhead distribution line 601 can be suppressed, and damage and disconnection of the overhead distribution line 601 can be more reliably suppressed. Can do.

  The protective member support apparatus 100 according to the embodiment of the present invention has a rod shape, one end is connected to the base 102, and protrudes from the one end in a direction inclined with respect to the axial direction of the base 102, The arm part 111 provided with the 2nd support part 114 which supports the protection net | network 600 in the other end is provided.

  According to the protection member support device 100 of the embodiment according to the present invention, the first support portion 108 between the second support portions 114 in the base portion 102 attached to the overhead distribution line 601 and in each base portion 102. The protective net 600 is stretched between the second support portion 114 and the overhead distribution line 601 even when the tip of the boom 603 of the heavy machine 602 approaches from the side of the overhead distribution line 601. Prior to contact with the electric wire 601, the protective member support device 100 is contacted.

  As a result, the boom 603 of the heavy machine 602 directly contacts the overhead distribution line 601 and external force is directly applied to the overhead distribution line 601 from the boom 603 of the heavy machine 602, causing the overhead distribution line 601 to be damaged or broken. Can be prevented.

  Further, when the boom 603 or the like of the heavy machine 602 comes into contact with the protective net 600 before the overhead distribution line, the external force applied from the boom 603 of the heavy machine 602 can be absorbed by the deformation of the protective net 600. Thereby, even when the protection member support apparatus 100 is suspended from the overhead distribution line 601, external force (impact) applied to the overhead distribution line 601 from the boom 603 of the heavy machine 602 can be reduced.

  Further, when the protective net 600 is installed, the first support part 108 and the second support part 114 can be attached simply by attaching the suspension part 103 to the overhead distribution line 601. Thereby, compared with the case where the 1st support part 108 and the 2nd support part 114 are each provided in another member, the work burden concerning installation of the protection net | network 600 can be reduced.

  Further, by providing the suspension portion 103, the first support portion 108 and the second support portion 114 integrally with the base portion 102, the number of parts constituting the protection member support device 100 can be reduced, and the protection member support device 100. Can be reduced in weight. Thereby, the weight applied to the overhead distribution line 601 for the installation of the protective net 600 can be suppressed, the load applied to the overhead distribution line 601 can be suppressed, and damage and disconnection of the overhead distribution line 601 can be more reliably suppressed. Can do.

  Further, in the protective member support apparatus 100 according to the embodiment of the present invention, the arm portion 111 can be rotated with one end connected to the base portion 102 as a fulcrum, and the shaft center of the base portion 102 is rotated. It is characterized by being selectively displaced into a first state protruding in a direction inclined with respect to the direction or a second state substantially parallel to the axial direction of the base portion 102.

  According to the protective member support apparatus 100 of the embodiment according to the present invention, the arm portion 111 can be brought into the second state according to the situation of the site where the protective net 600 is installed. The worker who performs the installation work may always carry the protective member support device 100 (the suspension member 101) regardless of the situation at the site. Thereby, it is only necessary to determine the state of the arm unit 111 at the site, so that it is not necessary to confirm the state of the site in advance, and the burden on the worker for the installation work can be reduced.

  In addition, when the arm portion 111 is in the first state when in use, and the arm portion 111 is in the second state when not in use, the transportability of the protection member support device 100 when not in use can be ensured. This also makes it possible to reduce the burden on the operator for installation work.

  Further, the protective member support device 100 according to the embodiment of the present invention is provided with a reinforcing member 115 having a bar shape and having connecting portions 118 that are detachably connected to the base portion 102 at both ends. It is a feature. According to the protective member support apparatus 100 of the embodiment of the present invention, the base portions 102 suspended from the overhead distribution line 601 are connected by the reinforcing member 115, so that the positional relationship between the base portions 102 can be easily and reliably established. Can be fixed to.

  Thereby, the space | interval of the 1st support parts 108 in the suspension member 101 attached to the overhead distribution line 601 can be hold | maintained, for example. As a result, when the protective net 600 and the base 102 are beaten due to strong winds or the like, the protective net 600 is loosened without maintaining the positional relationship between the bases 102. Can be prevented from hindering work in the vicinity. In addition, it is possible to prevent the slack protection net 600 from coming into contact with the power distribution equipment, and the power distribution equipment can be reliably protected to ensure the safety of the operator.

  As described above, the protective member support device and the method of installing the protective member are useful for the protective member support device and the protective member installation method used for protecting the overhead power distribution line, and in particular, residential areas and construction work. It is suitable for a protective member support device and a protective member installation method that require an installation method according to the site such as a location.

DESCRIPTION OF SYMBOLS 100 Protective member support apparatus 102 Base part 103 Suspension part 108 1st support part 111 Arm part 114 2nd support part 115 Reinforcement member 118 Connection part 600 Protective net 601 Overhead power distribution line 602 Heavy machine 603 Boom

Claims (3)

A base in the form of a rod;
A suspension part provided at one end of the base part and attached to the aerial distribution line by suspension;
A first support that is provided at the other end of the base and supports a sheet-like protective member;
It has a bar shape, one end is connected to the base, protrudes from the one end in a direction inclined with respect to the axial direction of the base, and a second support portion is provided at the other end for supporting a sheet-like protective member. Arm provided , and
The arm portion can be rotated with one end connected to the base portion as a fulcrum, and the arm portion protrudes in a direction inclined with respect to the axial direction of the base portion by rotating. A protective member supporting apparatus that selectively displaces to a second state that is substantially parallel to the axial direction .   The protective member support device according to claim 1, wherein the base portion has a tubular shape. The protective member support device according to claim 1 or 2 , further comprising a reinforcing member having a bar shape and having a connecting portion that is separably connected to the base at both ends.

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