JP4979612B2 - Safety belt suspension rope installation jig - Google Patents

Description

  The present invention relates to an installation jig for a safety belt suspension rope, and is particularly useful when applied to maintenance / inspection of a support insulator of a disconnector installed at a high place.

  FIG. 4 is a structural diagram showing an example of the structure of the disconnector, where (a) is a plan view and (b) is a front view. As shown in both figures, this example is a three-phase horizontal one-point disconnecting device, which is mounted on a stand 2 provided at the tip of three vertically-arranged support columns 1 via support insulators 3R, 3W, 3B. A disconnecting portion for opening and closing a track (not shown) is configured. The disconnecting portion has blades 4 and 5 and contacts 6 and 7 disposed on the blades 4 and 5, and the lines are closed or opened by contact and separation of the contacts 6 and 7 for each phase. To do. More specifically, two support insulators 3R, 3W, and 3B are provided on the power source side and the load side so as to be rotatable around the vertical axis. Then, the blades 4 and 5 and the contacts are brought into contact with each other by rotating the supporting insulators 3R, 3W and 3B on the power supply side and the supporting insulators 3R, 3W and 3B on the load side synchronously in the opposite directions from the open state shown in FIG. The children 6 and 7 are integrally rotated for each phase to bring the contacts 6 and 7 of each phase into synchronous contact.

  In this type of disconnector, it is necessary to perform maintenance / inspection of the disconnection part. In such maintenance / inspection, the worker 8 climbs the mount 2 and performs predetermined work such as cleaning of the supporting insulators 3R, 3W, 3B. Is going. In such work, the worker 8 must move between the adjacent phases on the gantry 2 which is narrow and unstable as a scaffold. Therefore, in order to prevent such a fall accident during work, a worker usually uses a safety belt. For this reason, it is necessary to stretch a suspension rope (not shown) for hooking the safety belt between the support insulators 3R, 3W, 3B.

  Conventionally, such a rope tensioning operation is performed by passing a suspension rope having an appropriate length between the support insulators 3R, 3W, 3B and directly connecting the suspension ropes to the support insulators 3R, 3W, 3B.

Although it is not a suspension rope installation jig, there is Patent Document 1 as a publicly known document that provides a scaffold by attaching to the support insulator during maintenance / inspection of the support insulator of a disconnector installed at a high place To do.
JP 2006-104796 A

  However, if the tension of the suspension rope is increased too much, it will become an obstacle during movement. Further, if the tension is too weak, a safety problem arises as a suspension rope for hanging the safety belt of the worker 8. Furthermore, when fixing the said suspension rope, this had to be tied to a support insulator, and the problem that it took a lot of trouble had arisen.

  In view of the above-described prior art, the present invention provides a safety belt suspension rope that can be secured to a columnar member such as a support insulator with a single touch and that can also ensure sufficient safety as an installation jig for a safety belt suspension rope. It is an object of the present invention to provide an installation jig, an installation jig set, and a method for installing a safety belt suspension rope using the installation jig.

In order to achieve the above object, the first aspect of the present invention provides:
Two blocks connected to each other via a hinge part sandwich the outer peripheral surface of a columnar member that is erected vertically through a notch formed in each block, and fasten the tip opening of each block. A fixing member configured to be closed and fastened to the columnar member by fastening the member;
A cross-sectional shape in which a base end portion is fixed to one block of the fixing member and protrudes horizontally and extends upward from the middle to form a space opening upward with the one block Is a substantially L-shaped wall,
A shaft portion erected perpendicularly to a horizontal portion of the wall portion, and a safety belt that protrudes horizontally from the shaft portion and protrudes horizontally from the shaft portion so as to be rotatable about the shaft of the shaft portion. And a rope regulating means having a rod-like member for preventing the suspension rope from protruding from the opening of the wall portion.

The second aspect of the present invention is:
In the installation jig of the safety rope suspension rope described in the first aspect,
The shaft portion and the rod-shaped member are provided in a safety belt suspension rope installation jig, wherein two sets of the shaft portion and the rod-like member are disposed at intervals along the axial direction of the suspension rope.

The third aspect of the present invention is:
In the installation jig of the safety rope suspension rope described in the first or second aspect,
An installation jig for a suspension rope for a safety belt, wherein an elastic member is affixed to the inner peripheral surfaces of the two blocks, and the columnar member is sandwiched between the elastic members.

The fourth aspect of the present invention is:
In the installation jig for the rope for suspending the safety belt according to any one of the first to third aspects,
The columnar member is an installation jig for a suspension rope for a safety belt, wherein the columnar member is a support insulator for a disconnector.

According to a fifth aspect of the present invention,
Two blocks connected to each other via a hinge part sandwich the outer peripheral surface of a columnar member that is erected vertically through a notch formed in each block, and fasten the tip opening of each block. A plurality of end portions including a fixing member configured to be closed and fastened to the columnar member by fastening the member, and a locking portion that is fixed to one block of the fixing member and locks the suspension rope. Installation jig for
A safety jig suspension rope installation jig set comprising the installation jig described in any one of the first to fourth aspects.

The sixth aspect of the present invention is:
The installation jig according to any one of the first to fourth aspects, which is attached to a central columnar member among a plurality of columnar members erected vertically in a high place,
The end installation jig described in the fifth durability mounted on the columnar members on both sides of the central columnar member,
A rod-shaped member disposed between one block of the fixing member and the wall portion and prevented from protruding from the wall portion, and further, the locking portion of the end portion setting jig Suspension ropes respectively locked to
The safety belt suspension rope installation method is characterized in that a hook of a safety belt worn by an operator working at a high place is hung on the suspension rope.

  According to the present invention, the fixing member of the installation jig is fixed to the columnar member with one touch, and in this state, the suspension rope for the safety belt is installed using the space of the wall portion, and the rod-shaped member of the rope regulating means is rotated. By moving the rod-shaped member above the suspension rope, it is possible to prevent the suspension rope from jumping out from the wall. Further, the end of the suspension rope can be locked to the locking portion of the end setting jig fixed to the columnar member at the end through a fixing member with one touch.

  That is, when installing the suspension rope, the installation jig and the end installation jig are fixed to a predetermined columnar member, and the suspension rope is installed in the space formed by the wall with the rod-shaped member retracted. On the other hand, the end of the suspension rope may be engaged with the engagement portion of the end installation jig and the rod-shaped member may be rotated to occupy the position above the suspension rope. As a result, not only can the suspension rope be installed easily, but also the rod-like member can prevent the suspension rope from jumping out from the wall. As a result, it is possible to ensure the safety of the operator's predetermined work performed by hanging the safety belt on the suspension rope.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. This embodiment is an installation jig, installation jig set or installation system for a safety belt suspension rope during maintenance / inspection of the disconnector shown in FIG. Therefore, this is the case where the columnar member is a support insulator for the disconnector.

  1A and 1B are diagrams showing an installation jig according to an embodiment of the present invention. FIG. 1A is a plan view of an installation jig that is fixed to a columnar member at a central portion, and FIG. The top view of an installation jig and (c) are sectional drawings of the fixing member.

  Among these, the installation jig 11 shown in FIG. 1A includes a fixing member 12 attached to a central supporting insulator 3W (see FIG. 4) which is a columnar member, and a wall integrally fixed to the fixing member 12. Rope restricting means 14 for preventing the part 13 and the installed suspension rope (not shown in FIG. 1) from jumping out from the wall part 13 is provided.

  Among these, the fixing member 12 is erected vertically through notches 16a and 17a formed in the respective blocks 16 and 17 by two blocks 16 and 17 that are rotatably connected via the hinge portion 15. The outer peripheral surface of the support insulator 3W that is a columnar member is sandwiched from both sides, and the tip openings 18 of the blocks 16 and 17 are closed by fastening bolts 19 and nuts 20 that are fastening members, and are attached to the support insulator 3W. That is, the blocks 16 and 17 are configured so that the tip opening 18 can be opened and closed with the hinge 15 as the center of rotation.

  The wall portion 13 and the rope regulating means 14 will be described with reference to FIG. 2 in which these portions are extracted and enlarged. 2A is an enlarged plan view showing a part of the installation jig 11 shown in FIG. 1A, and FIG. 2B is a side view thereof. As shown in these drawings, the wall portion 13 has a base portion fixed to one block 16 of the fixing member 12 and protrudes horizontally, and extends horizontally upward from the tip of the horizontal portion 13a. The cross-sectional shape which has the vertical wall 13b and forms the space which has the opening part 13c opened upwards between the blocks 16 is a substantially L-shaped member.

  The rope restricting means 14 includes a shaft portion 14a and a rod-shaped member 14b. The shaft portion 14a is erected vertically to the horizontal portion 13a of the wall portion 13, while the rod-shaped member 14b protrudes horizontally from the shaft portion 14a and this shaft. It protrudes horizontally around the axis of the portion 14a. The base end portion of the rod-shaped member 14b in this embodiment is fixed to the shaft portion 14a, and the shaft portion 14a is formed to be rotatable around the shaft. As a result, the rod-like member 14b can be rotated around the axis of the shaft portion 14a. The configuration of this portion may be a configuration in which the shaft portion 14a is fixed to the horizontal portion 13a and the rod-like member 14b is rotatably attached to the shaft portion 14a. In any case, the opening 13c of the wall 13 is opened and closed by the rotation of the rod-like member 14b. Here, the closed state of the opening 13c is a state in which the tip of the rod-like member 14b is in contact with the inner peripheral surface of the vertical wall 13b, as shown in FIGS. 2 (a) and 2 (b). This means that the axial direction of the rod-like member 14b and the surface of the vertical wall 13b are in a state of being orthogonal. Further, the open state of the opening 13c means a state in which the rod-like member 14b is parallel to the vertical wall 13b as shown by a two-dot chain line in FIG. Therefore, while the opening 13c is open, the suspension rope 41 is installed in the space between the wall 13 and the fixing member 12 through the opening 13c, while the bar member 14b in the open state is rotated. By closing the opening portion 13c, it is possible to prevent the suspension rope 41 from jumping out from the opening portion 13c of the wall portion 13. At this time, the suspension rope 41 is naturally occupied below the rod-like member 14b.

  In this embodiment, the shaft portion 14a and the rod-like member 14b are arranged in two sets at intervals along the axial direction of the suspension rope 41. By providing two sets in this way, after installing the suspension rope 41, it is possible to improve the safety when the worker 8 (see FIG. 4) wearing the safety belt 42 moves. It will be described later.

  The safety belt 42 attached to the waist of the worker 8 is hung on the suspension rope 41 via the hook 42a.

  The end installation jig 21 shown in FIG. 1B has a fixing member 22 attached to the support insulators 3R and 3B (see FIG. 4) at both ends, and one block 26 of the fixing member 22 fixed thereto. And a locking member 23 for locking the suspension rope. Among these, the configuration itself of the fixing member 22 is the same as that of the fixing member 12 shown in FIG. That is, the outer circumferences of the support insulators 3R and 3B that are vertically erected through the notches 26a and 27a formed in the blocks 26 and 27 by the two blocks 26 and 27 that are rotatably connected via the hinge portion 25. While sandwiching the surface from both sides, the front end openings 28 of the blocks 26 and 27 are closed by fastening bolts 29 and nuts 30 which are fastening members, and are attached to the support insulators 3R and 3B.

  As shown in FIG.1 (c), the internal shape of the fixing members 12 and 22 in this embodiment matches the external shape of the support insulators 3W, 3R, and 3B when the blocks 16, 17, 26, and 27 are closed. The elastic member 43 is affixed to the inner peripheral surface. As a result, the fixing members 12 and 22 are firmly fixed to the support insulators 3W, 3R, and 3B via the elastic member 43. Further, the diameters of the notches 16a, 17a, 26a and 27a are slightly larger than the minimum diameter φ1 of the support insulators 3W, 3R and 3B and smaller than the maximum diameter φ2. Therefore, the fixing members 12 and 22 are attached to the support insulators 3W, 3R, and 3B in a state of being locked to the flange portions of the support insulators 3W, 3R, and 3B. As a result, the installation jig 11 and the end installation jig 21 can be stably supported by the support insulators 3W, 3R, 3B.

  The installation jig set including the installation jig 11 and the end installation jig 21 having the above-described configuration is used in a mode as shown in FIG. 3A and 3B are views showing an installation method of the suspension rope 41 of the safety belt 42, where FIG. 3A is a plan view and FIG. 3B is a front view. As shown in both figures, the support insulators 3R, 3W, 3B of the disconnector are arranged on the pedestal 2 which is arranged at the upper end of the column 1 and is at a high place. The disconnector is the same disconnector as the horizontal one-point disconnector shown in FIG. 4, but only the support insulators 3R, 3W, and 3B are shown in FIG. 3 (the blades 4 and 5 and the contactor 6 in FIG. 4). , 7 are omitted.).

  When the installation jig set according to the present embodiment is mounted, the fixing member 12 is first fixed to the support insulator 3W with one touch, and the fixing member 22 is fixed to the support insulators 3R and 3B with one touch. In this state, the shaft portion 14a is rotated as necessary, the closed state of the opening portion 13c by the rod-like member 14b is released to the open state, and the suspension rope 41 of the safety belt 42 is utilized using the space of the wall portion 13. Install. Thereafter, the rod-like member 14b of the rope regulating means 14 is rotated to close the opening 13c, and the rod-like member 14b is positioned above the suspension rope 41. As a result, the suspension rope 41 can be prevented from jumping out from the wall portion 13. On the other hand, the end of the suspension rope 41 is locked to the locking member 23 via a hook 41a attached thereto. Thus, the installation of the suspension rope 41 is completed.

  In this state, when the worker 8 (see FIG. 4) performs a predetermined work, the hook 42a of the safety belt 42 attached to the waist is hung on the suspension rope 41. In this state, the necessary work is performed by moving on the gantry 2, but when passing the support insulator 3 W from the left side to the right side in the drawing, for example, as clearly seen with reference to FIG. The shaft portion 14a is rotated to open the opening 13c. Thereafter, the hook 42a of the safety belt 42 is moved between the left and right bar-shaped members 14b, 14b, and the left bar-shaped member 14b is rotated to close the opening 13c. In this state, the right rod member 14b is rotated, and the opening 13c is opened to pass the portion of the right rod member 14b. Thereafter, the right rod-like member 14b is rotated to close the opening 13c again. Thus, even when the hook 42a is passed through the left and right bar-like members 14b, at least one of the bar-like members 14b is occupied above the suspension rope 41. Even if 8 (see FIG. 4) slides his / her foot, the suspension rope 41 can be prevented from jumping out from the space 13 of the wall portion 13 to prevent the worker 8 (see FIG. 4) from falling from the mount 2. . Thus, by providing two sets of rope regulating means 14 including the shaft portion 14a and the rod-like member 14b, the suspension rope 41 can be prevented from always bouncing off. As a result, the safety of the predetermined work of the worker 8 (see FIG. 4) performed by hanging the safety belt 42 on the suspension rope 41 can be ensured. However, it is not always necessary to provide two sets of rope regulating means 14. While the rod-like member 14b passes the hook 42a, the function for preventing the suspension rope 41 from jumping out by the rod-like member 14b is interrupted. However, considering that the time is short, it is still sufficiently safe. Sex can be secured.

<Other embodiments>
In the above embodiment, it is not essential to have the hooks 41 a at both ends of the suspension rope 41. You may make it tie to the latching member 23 of the installation jig 21 for ends. However, the workability is naturally better when the hook 41a is used.

  Further, in the case of the disconnector, since the distance between the adjacent support insulators 3R, 3W, 3B is determined according to the voltage class, the suspension rope 41 with the hook 41a having a predetermined length according to the voltage class is previously provided. If prepared, it can contribute to more rational work.

  In the above embodiment, the columnar members are the support insulators 3R, 3W, 3B of the disconnector, but of course, the present invention is not limited to this. There is no particular limitation as long as it is a columnar body in an application for installing the suspension rope 41 of the safety belt 42. However, a three-phase disconnector, a three-phase cable, which has a plurality of columnar members and the worker 8 needs to move on an unstable platform at a high place and perform a predetermined operation at the position of each columnar member. It is particularly useful when used for maintenance and inspection of electrical equipment such as heads.

  The present invention can be used in the industrial field where maintenance and inspection of electric power equipment is performed.

BRIEF DESCRIPTION OF THE DRAWINGS It is a figure which shows the installation jig which concerns on embodiment of this invention, (a) is a top view of the installation jig fixed to the columnar member of a center part, (b) is the installation jig fixed to the columnar member of both ends. (C) is sectional drawing of the fixing member. It is an enlarged view of the installation jig shown to Fig.1 (a), (a) is an enlarged plan view which extracts and shows a part, (b) is the side view. It is a figure which shows the installation system of the rope for suspension of the safety belt which concerns on embodiment of this invention, (a) is a top view, (b) is a front view. It is structural drawing which shows an example of the structure of a disconnector, (a) is a top view, (b) is a front view.

Explanation of symbols

3R, 3W, 3B Support insulator 11 Installation jig 12, 22 Fixing member 13 Wall portion 14 Rope restricting means 14a Shaft portion 14b Rod member 15, 25 Hinge portion 16, 17, 26, 27 Blocks 16a, 17a, 26a, 27a Notch Portions 18 and 28 End openings 19 and 29 Bolts 20 and 30 Nut 21 End installation jig 23 Locking member 41 Suspension rope 42 Safety belt 43 Elastic member

Claims (6)

Two blocks connected to each other via a hinge part sandwich the outer peripheral surface of a columnar member that is erected vertically through a notch formed in each block, and fasten the tip opening of each block. A fixing member configured to be closed and fastened to the columnar member by fastening the member;
A cross-sectional shape in which a base end portion is fixed to one block of the fixing member and protrudes horizontally and extends upward from the middle to form a space opening upward with the one block Is a substantially L-shaped wall,
A shaft portion erected perpendicularly to a horizontal portion of the wall portion, and a safety belt that protrudes horizontally from the shaft portion and protrudes horizontally from the shaft portion so as to be rotatable about the shaft of the shaft portion. An installation jig for a suspension rope for a safety belt, comprising: a rope regulating means provided with a rod-like member that prevents the suspension rope from protruding from the opening of the wall portion. In the installation jig of the rope for suspending the safety belt according to claim 1,
2. The safety belt suspension rope installation jig according to claim 1, wherein the shaft portion and the rod-shaped member are arranged in two sets with a gap along the axial direction of the suspension rope. In the installation jig of the rope for suspending the safety belt according to claim 1 or claim 2,
An installation tool for a safety belt suspension rope, wherein an elastic member is affixed to the inner peripheral surfaces of the two blocks, and the columnar member is sandwiched between the elastic members. In the installation jig of the safety belt suspension rope according to any one of claims 1 to 3,
An installation jig for a rope for suspending a safety belt, wherein the columnar member is a support insulator for a disconnector. Two blocks connected to each other via a hinge part sandwich the outer peripheral surface of a columnar member that is erected vertically through a notch formed in each block, and fasten the tip opening of each block. A plurality of end portions including a fixing member configured to be closed and fastened to the columnar member by fastening the member, and a locking portion that is fixed to one block of the fixing member and locks the suspension rope. Installation jig for
An installation jig set for a rope for suspending a safety belt, comprising the installation jig according to any one of claims 1 to 4. The installation jig according to any one of claims 1 to 4, wherein the installation jig is attached to a central columnar member among a plurality of columnar members erected vertically in a high place,
The end installation jig according to claim 5, which is attached to each of the columnar members on both sides of the central columnar member,
A rod-shaped member disposed between one block of the fixing member and the wall portion and prevented from protruding from the wall portion, and further, the locking portion of the end portion setting jig Suspension ropes respectively locked to
A safety belt suspension rope installation method, characterized in that a hook of a safety belt worn by an operator working in the high place is hung on the suspension rope.

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