JP2007035533A - Operating rod of tow rope fixing device for pole-mounted switch, and attachment for the operating rod - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To surely carry out a tow rope lock-operation of a tow rope fixing device for a pole-mounted switch by a worker, from the ground. <P>SOLUTION: An operation rod 1 for the tow rope fixing device, includes a rocking member, provided with two ring members for lock-lock cancellation of the tow rope on both sides, and includes a pressing member where the tow rope is fixable by interlocking with rocking of the rocking member, and is constituted of a rod body 2 for operation and an attachment 3, the attachment 3 is provided with a base member 4 provided with a fixing part 5 to the end part of rod body 2 and a support part 6 extending from the fixing part and provided with a lever 8 rockably connected to the supporting part 6 via a pivot 7. At the lever 8, ring insertion parts 10, 11 inserted into the ring of the ring member are installed, the ring inserting parts 10, 11 are projected vertically to the rod body 2, a spacing between the ring insertion parts 10, 11 is nearly equal to the length between the end part of the ring inner periphery of the lower ring member and the upper end of the ring inner periphery of the upper ring member, when one of the ring members is pulled down to the lowest position. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  According to the present invention, an operator performs a towline lock (fixing) operation or an unlocking (release) operation to be used for a towline fixing device for opening / closing operation of a pole switch disposed at a height of a utility pole. The present invention relates to an operating rod and an operating rod attachment for performing from the ground.

  As shown in FIG. 6, the pole switch 20 installed on the armature portion of the utility pole 10 has an opening operation pull line 31 that is color-coded for opening and closing operations (generally, the closing operation side is red and the opening operation side is green). And a pulling line 32 for closing operation. The tip ends of these tow ropes 31 and 32 are attached to the operation handle 21 of the pole switch 20, guided downward along the utility pole 10, and the end portions are fixed at appropriate positions on the utility pole 10. Then, an opening operation ring 33 is provided at the end of the opening operation tow line 31, a closing operation ring 34 is provided at the closing operation tow line 32, and the operation handle 21 is rotated by pulling the respective pulling lines 31 and 32 downward. Provided for the purpose. For example, when the operator pulls the opening operation ring 33 downward when performing a power failure operation on the electric line, the operation handle 21 is rotated via the opening operation tow line 31, and the circuit of the pole switch 20 is opened. It is thrown.

  When an external force is applied to the closing operation towline 32 or the closing operation ring 34 while the circuit of the pole switch 20 is opened in this way, the operation handle 21 rotates and the column is turned. The circuit of the upper switch 20 is closed and there is a risk of electric shock. On the other hand, when an external force is applied to the opening operation tow rope 31 or the opening operation ring 33 in a state where the circuit of the column switch 20 is closed, the operation handle 21 rotates and the column switch 20 is rotated. There is a risk of a power outage accident. Therefore, in order to prevent such an accident, a towline fixing device 40 that locks the towline 31 and 32 after the closing operation or the opening operation so as not to move anymore is used. In order to prevent external force from being applied to the portion above the fixing point of the towline 31, 32 during work, and to prevent third parties other than the operator from touching the towline 31, 32 or the operation rings 33, 34. Therefore, the fixing band 35 is often disposed at a high place out of the reach of workers and third parties.

  In general, the towline fixing device 40 disposed at such a high position is movable to the housing member in order to lock or unlock the housing member attached to the utility pole and the housing member in cooperation with the housing member. The attached holding member, the swinging member attached to the shaft provided in the housing member so that both ends can swing up and down, and suspended at one end of the swinging member. And a lock ring member having a ring at the lower end, and a lock release ring member that is rotatably suspended at the other end of the swing member and has a ring at the lower end. When the operator pulls the locking ring member or the unlocking ring member downward, the swinging member is swung, and the holding member locks or unlocks the towline in conjunction with this swinging. To have.

  For the operation of pulling down the locking ring member or the unlocking ring member, that is, the operation of swinging the swinging member, FIG. An operating rod 60 as shown is used. The operation bar 60 of this prior art is composed of an operation bar for an operator to hold at the time of operation, and an attachment provided with a collar part covering the end part. This conventional attachment includes a cap-shaped fixing portion for covering the end portion of the operating rod-like body and a flange portion 61 extending from the fixing portion, and a bolt is provided at a notch portion provided in a part of the fixing portion. Is inserted and fixed to the rod for operation.

  For example, when performing a power outage work on the electric line, the operator hooks the hook 61 on the pulling rope opening operation ring 33 and pulls it downward, and after the circuit of the pole switch 20 is opened, The collar portion 61 of the operation rod 60 is hooked on the ring 46 of the ring member 44 and pulled downward. Then, the swing member of the towline fixing device 40 swings around the shaft and tilts in one direction, and the pressing member operates in conjunction with the swing to lock the towline. In this state, since the tow ropes 31 and 32 no longer move, the operator can safely perform work such as inspection and construction of electric lines. After the work is finished, when the worker hooks the collar 61 on the ring 47 of the unlocking ring member 45 and pulls it downward, the swinging member swings around the shaft and inclines in the opposite direction. The holding member operates in conjunction with the movement to unlock the towline. Thereafter, the operator hooks the hook 61 on the pulling line closing operation ring 34 and pulls it downward, closes the circuit of the pole switch 20 and starts power transmission.

  As described above, the towline fixing device is provided with a large number of movable members including a swing member and a pressing member interlocked with the swing member, but changes over time (for example, oxidation of lubricated machine oil, adhesion of dust, etc.) ) May cause malfunction of the swing member. In such a case, the operator hooks the collar of the conventional operating rod on the ring of the locking ring member or the unlocking ring member, attaches both hands to the operating rod and applies the load of the entire weight of the lower part. The ring cannot be pulled to the lowest position even when trying to pull it, and as a result, the operation of locking or unlocking the pulling net cannot be performed. For this reason, when such a situation occurs, it is necessary for the worker to ascend to the utility pole, disassemble the towline fixing device, and repair the malfunction of the swing member. Alternatively, in order to avoid such a situation, it has been necessary to periodically go up to the utility pole and perform maintenance such as lubrication on the towline fixing device. Alternatively, the towline fixing device itself may have to be replaced.

  Therefore, an object of the present invention is to be able to reliably and easily pull the ring to the lowest position by the operation from the ground even when the ring of the ring member cannot be pulled to the lowest position due to the change over time. It is to provide an operation jig.

  The inventor pays attention to the fact that the locking ring member and the unlocking ring member are connected via the swing member in the towline fixing device, and for opening / closing operation of the casing member attached to the utility pole and the pole switch In order to lock or unlock the towline in cooperation with the housing member, a holding member movably attached to the housing member, and a shaft provided on the housing member so that both ends thereof can swing vertically. A swing member attached to the swing member, a lock ring member that is rotatably suspended at one end of the swing member and having a ring at the lower end, and a swing member that is rotatably suspended at the other end of the swing member. And an unlocking ring member that is lowered and has a ring at the lower end, and the holding member lowers the towline by pulling the locking ring member downward and tilting the swinging member in one direction. And pulling the unlocking ring member downward and tilting the swinging member in the opposite direction, the holding member is used for the towline fixing device adapted to unlock the towline. An operating rod for performing a swinging operation of the swinging member, the operating rod comprising an operating rod-like body and an attachment attached to an end of the operating rod-like body, the attachment The attachment member is attached to the operation rod-like body via a pivot member and a base member having a fixing portion for attaching to the end of the operation rod-like body and a support portion extending from the fixing portion. And a lever attached so as to be able to swing in the extending direction of the operating rod-like body when the two rod members of the towline fixing device are attached to one side of the pivot. Two ring insertion portions respectively inserted into the ring and contacting the inner periphery of the ring are provided so that the ring insertion portions and the pivot are arranged substantially linearly, and the two rings The interval between the insertion portions is such that the lower end of the ring inner periphery of the ring member existing below and the upper end of the ring inner periphery of the ring member existing above when one of the ring members of the towline fixing device is pulled to the lowest position It has been found that the above-mentioned problem can be solved by an operating rod characterized in that it is approximately equal to the length of.

  In the present invention, the term “operation bar” refers to a bar for an operator to hold during operation. The operator attaches the attachment to the operation rod-shaped body and completes the operation rod, then grips the operation rod-shaped body, and is closer to the pivot among the two ring insertion portions provided on the lever After inserting the ring insertion portion of the ring member into the ring of the ring member to be pulled downward and the other ring insertion portion into the ring of the other ring member, the operation rod is pulled downward to pivot. The lever rotates with respect to the rod for operation around the center of the ring, and the ring insertion part inserted into the ring of the ring member that is going to be pulled downward comes into contact with the vicinity of the lower end of the inner periphery of the ring and pushes down the ring. At the same time, the ring insertion portion inserted into the ring of the other ring member abuts on the vicinity of the upper end of the inner periphery of the ring and pushes up the ring, so that the swinging member is reliably swung. , So to reliably lock or unlock the towrope the pressing member acts in conjunction with the swinging member. Even when a conventional operation rod having a collar at its tip cannot be pulled to the final position of the ring of the ring member, if the operation rod of the present invention is used, the operator can use one hand. It is possible to pull the ring to the final position very easily only by operating, and it is not necessary to apply force with an unreasonable posture.

  In the operation rod of the present invention, when the two ring insertion portions are provided so as to protrude in a direction substantially perpendicular to the extending direction of the operation rod when the attachment is attached to the operation rod, the structure is compact. Furthermore, it is preferable because the operation of inserting the ring insertion portion into the rings of both ring members can be easily performed.

  Moreover, it is preferable that a rotatable rotating member is attached to a portion of the ring insertion portion provided in the lever that should contact the inner periphery of the ring member. This rotating member reduces friction between the inner ring periphery and the ring insertion part, and the ring insertion part moves to the lower end or upper end of the ring inner periphery without resistance, so that the rings of both ring members are simultaneously pushed up and down. The operation, and thus the operation of locking or unlocking the towline can be performed more reliably and smoothly.

  In the operation rod of the present invention, if the interval between the two ring insertion portions can be adjusted, the two ring members according to the interval between the two ring members of the towline fixing device when the operation rod of the present invention is used. This is preferable because the ring insertion portion can be moved to a position where the operation of simultaneously pushing up and pushing down the ring can be performed optimally.

  Further, the lever is constituted by a rod or a substantially rectangular plate, and a pivot is arranged at the end of the rod or the substantially rectangular plate, or the support portion of the base member is extended by the operation rod It is preferable to extend in the direction because the entire operation rod and the attachment can be made compact.

  In addition, as described above, the conventional operation rod is provided with a collar portion for hooking it on the ring of the ring member at the tip thereof. Accordingly, a hole for inserting the collar portion is provided in the support portion of the base member of the attachment used in the operation rod of the present invention, and a conventional operation rod (a rod-like body having a collar portion at the tip) is provided. The conventional operation rod is effective when used as an operation rod-like body in the present invention as it is, after inserting the collar portion into the hole provided in the above-mentioned support portion, and then attaching the fixing portion of the base member to the operation rod-like body It is economically preferable because it can be used.

  In the attachment in the operation rod of the present invention, a straight line connecting the pivot and one of the ring insertion portions when the attachment is attached to the operation rod-like body at a position near the pivot of either the support portion of the base member or the lever. It is preferable that a restricting projection for restricting the angle formed by the shaft of the operating rod is provided. If the angle formed by the straight line connecting the pivot and one of the ring insertion portions and the shaft of the rod for operation is too small, the two ring insertion portions are connected to the two rings of the locking ring member and the unlocking ring member. It becomes difficult to insert each into. By providing this regulating projection, the minimum value of the angle formed by the straight line connecting the pivot and one of the ring insertion parts and the axis of the rod for operation can be maintained at a predetermined angle or more. Can be reliably and easily performed in the ring of each ring member.

  Then, the position of the restricting protrusion can be moved, and depending on the position of the restricting protrusion, when the attachment is attached to the operation rod-like body, a straight line connecting the pivot and one of the ring insertion portions and the operation rod-like shape If the minimum value of the angle formed by the body shaft is adjusted, depending on the distance between the ring members of the towline fixing device when using the operating rod of the present invention, This is preferable because the angle can be adjusted so that the operation of simultaneously pushing up and pushing down can be performed optimally.

  The present invention also relates to the attachment itself attached to the operating rod-like body in the above-described operating rod of the present invention. With this attachment, the swing operation of the swing member of the towline fixing device can be performed very easily.

  Furthermore, the swinging operation of the swinging member of the towline fixing device can be easily performed by attaching the lever provided with the ring insertion portion described above directly to the end of the bar for operation without using an attachment. Can do. Therefore, the present invention also relates to an operating rod characterized in that the above-mentioned lever is attached to the end of the operating rod-like body via a pivot.

  According to the operation rod and the attachment for operation according to the present invention for the operator to perform the lock operation and unlock operation of the towline from the ground, which is used for the fixing device of the towline for opening and closing operation of the pole switch, over time Even if the conventional operation rod with a hook at the tip is used, even if the ring of the towline fixing device ring cannot be pulled to the lowest position, the operator only operates with one hand. Therefore, it is possible to pull the ring to the lowest position very easily and reliably, and it is not necessary to apply force with an unreasonable posture. Therefore, it is not necessary for the operator to go up to the utility pole to disassemble the towline fixing device and repair the malfunction, or to regularly go up to the utility pole and perform maintenance such as lubrication on the towline fixing device. Alternatively, the number of times can be significantly reduced. Furthermore, it is not necessary to replace the device due to malfunction of the towline fixing device, or the number of times can be remarkably reduced, which is extremely advantageous economically.

  In the following description, it is assumed that the operating rod or the operation attachment of the present invention is used in the towline fixing device shown in FIG. 8, but the operating rod or the operation attachment of the present invention is shown in FIG. Not only, but also a housing member attached to the power pole, and a pressing member movably attached to the housing member in order to lock or unlock the pulling rope for opening / closing operation of the pole switch in cooperation with the housing member; A swinging member attached to a shaft provided in the housing member so that both ends of the shaft can swing in the vertical direction; a swinging member that is rotatably suspended at one end of the swinging member; and a ring at the lower end A locking ring member, and a unlocking ring member that is rotatably suspended at the other end of the swinging member and has a ring at the lower end. By pulling and tilting the swinging member in one direction, the pressing member locks the towline, and by pulling the unlocking ring member downward and tilting the swinging member in the opposite direction, the pressing member unlocks the pulling line. Any pulling line fixing device designed to do so can be used.

(An example of a towline fixing device)
FIG. 8A shows a cross-sectional view of the towline fixing device 40 cut along a plane passing through the lock ring member 44 and the lock release ring member 45 as viewed from the front (in FIG. 8B, the line BB). FIG. 8B shows a cross section cut along a plane passing through line AA in FIG. 8A in the direction of the arrow. The figure is shown. In these figures, only parts necessary for the operation of locking and unlocking the towline are shown.

  A towline fixing device 40 shown in FIGS. 8A and 8B includes, as basic components, a housing member 41 to be attached to a utility pole, and locking ring members 44 at both ends disposed inside the housing member 41. And a tubular swing member 43 having a ring member 45 for unlocking, an annular spacer 42 for maintaining the distance between the swing member 43 and the front surface 41a of the housing member 41 at a predetermined distance, and adjacent to the swing member 43 And a sliding plate 48 that provides a sliding surface for the swinging member 43, a pulling line 31 that is disposed outside the housing member 41 and cooperates with the front surface 41 a of the housing member 41, A pressing member 49 that locks or unlocks 32, a spring 50 that regulates the distance between the pressing member 49 and the front surface 41a of the housing member 41, a sliding plate 48, a swinging member 43, a spacer penetrating these members 42, And a shaft 51 connecting the pulling 50 and the pressing member 49, the front face 41a of the housing member 41.

  The tubular swing member 43 is disposed on the back side of the front surface 41a of the housing member 41 with an annular spacer 42 interposed therebetween, and the center portion of the swing member 43 is on a shaft 51 passing through the spacer 42 and both ends thereof are vertically oriented. It is connected so that it can swing. One end side of the ring member 44 for locking the towline and the ring member 45 for unlocking is bent at a substantially right angle, and the operator can lock or unlock the towline from the ground on the other end side. Rings 46 and 47 are provided for hooking a part of the operation rod used when performing. Then, the bent ends of the ring members 44 and 45 are inserted into holes provided at both ends of the swing member 43. As a result, the ring members 44 and 45 are suspended from the swing member 43 so as to be rotatable. It is done.

  On the back side of the swinging member 43, a slide having a U-shape having a planar base portion 48a and side portions 48b and 48c bent in the direction of the swinging member 43 from both sides of the base portion 48a. A moving plate 48 is provided. The central portion of the base portion 48a of the sliding plate 48 is supported by a shaft 51 penetrating the swing member 43, and the side portion 48b arranged on the locking ring member 43 side is near the center of the side edge. The side portion 48c arranged on the lock release ring member 44 side is cut obliquely from the vicinity of the center of the side edge to the lower edge. The side edges of the side portions 48 b and 48 c are arranged so as to contact the swing member 43. That is, the side edges of the side portions 48 b and 48 c provide a sliding surface for the swing member 43.

  A pressing member 49 is disposed in front of the front surface 41 a of the housing member 41 and is supported by a shaft 51 that penetrates the spring 50. The shaft 51 is provided with a stopper 51a that comes into contact with the base 48a of the sliding plate 48 at the end on the sliding plate 48 side, and a screw portion is formed at the end on the pressing member 49 side. After the shaft 51 passes through the pressing member 49, a nut 52 is engaged with this threaded portion so that the distance between the pressing member 49 and the sliding plate 48 is maintained at a predetermined distance. The pulling ropes 31 and 32 for opening / closing operations of the pole switches are hung downward through the space between the front surface 41a of the housing member 41 and the pressing member 49.

  In the towline fixing device 40 configured as described above, when the ring 46 of the locking ring member 44 is pulled downward, the swinging member 43 swings and tilts about the shaft 51, so that Stops in contact with the lower surfaces 41b and 41c. At the same time, the swaying member 43 slides on the side edges of the side portions 48b and 48c of the sliding plate 48, and moves to a portion that is not cut through the portion that is cut obliquely. At this time, the sliding plate 48 moves away from the front surface 41a of the housing member 41. With this movement, the holding member 49 maintained at a predetermined distance from the sliding plate 48 resists the force of the spring 50. The housing member 41 moves to the front surface 41a side. For this reason, the tow ropes 31 and 32 disposed between the pressing member 49 and the front surface 41a of the housing member 41 are sandwiched and locked between them.

  On the other hand, when the ring 47 of the unlocking ring member 45 of the towline fixing device 40 is pulled downward, the swing member 43 swings around the shaft 51 and tilts in the reverse direction, and the upper and lower surfaces of the housing member 41 Stops in contact with 41b and 41c. At the same time, the swinging member 43 slides on the side edges of the side portions 48b and 48c of the sliding plate 48, passes through the uncut portions, and moves to the portions that are cut obliquely. At this time, due to the force of the spring 50, the pressing member 49 moves away from the front surface 41 a of the housing member 41, and the sliding plate 48 moves in a direction approaching the front surface 41 a of the housing member 41. For this reason, the tow ropes 31 and 32 disposed between the pressing member 49 and the front surface 41a of the housing member 41 are unlocked.

(Embodiment of the present invention)
Next, an embodiment of the operating bar and the operating bar attachment of the present invention for performing the towline locking operation and the unlocking operation in the above-described towline fixing device 40 will be described.

  FIG. 1 shows a schematic diagram of the operation rod 1 of the present embodiment. The operation rod 1 includes an operation rod-like body 2 and an attachment 3 attached to the end of the operation rod-like body 2.

  In the present embodiment, the operating rod-like body 2 is made of wood, resin such as FRP, or metal such as iron or steel, and the ring member 44 of the towline fixing device 40 disposed at the height of the utility pole, It has a length that reaches at least the 45 rings 46 and 47.

  FIG. 2 is a schematic view showing the attachment 3 in the operation rod 1 of the present embodiment. The attachment 3 is mainly composed of a resin such as FRP, or a metal such as iron or steel, and includes a fixing portion 5 to be attached to the end of the operation rod-like body 2 and a support portion 6 extending from the fixing portion 5. A base member 4 provided, and a lever 8 connected to an end of the support portion 6 via a pivot 7 are provided.

  In the present embodiment, the fixing portion 5 of the base member 4 is formed in a C-shape so as to be engageable with the operation rod-like body 2, and the opposite end portions of the fixing portion 5 are bent outward. The hole 5b for inserting the bolt 5a is provided in the bent portion. After the fixing portion 5 is engaged with the end portion of the operation rod-shaped body 2, the bolt 5a can be inserted into the hole and fixed to the operation rod-shaped body 2 with a nut.

  Further, the fixing portion 5 of the base member 4 has one end of a support portion 6 formed of a substantially rectangular plate body extending in the extending direction of the operation rod-shaped body 2 when the attachment 3 is attached to the operation rod-shaped body 2. It is arranged and fixed so as to extend. At the front end of the support portion 6, a lever 8, which is also composed of a substantially rectangular plate, extends the operation rod 2 when the attachment 3 is attached to the operation rod 2 via the pivot 7. It is connected so that it can swing in the direction.

  The support portion 6 is further operated to restrict the angle formed by the support portion 6 and the lever 8 at a position in the vicinity of the pivot 7, and accordingly, when the attachment 3 is attached to the operation rod-like body 2. The axis of the rod-shaped body 2 and the axis of the lever 8 (as will be described later, in this embodiment, the axis of the lever 8 and the straight line connecting the pivot 7 and the ring insertion portions 10 and 11 coincide). A restricting protrusion 9 is provided for restricting the angle. The restriction projection 9 is formed by a long hole 9a extending in the axial direction of the support portion 6 and a bolt member 9b having a screwing portion at an end inserted into the long hole 9a. After the bolt member 9b is inserted into an appropriate position of the long hole 9a, the nut is engaged with the screw and firmly fixed, whereby the restricting projection 9 is formed.

  The restriction projection 9 determines the minimum value (α in FIG. 1) formed by the axis of the operating bar 2 and the axis of the lever 8 when the attachment 3 is attached to the operating bar 2. . By adjusting the position of the bolt member 9b in the long hole 9a, the value of the angle α changes. If the angle α is too small, it is difficult to perform the operation of inserting the ring insertion portions 10 and 11 shown below into the rings 46 and 47 of the towline fixing device 40, but the operation rod 1 of the present embodiment. According to the present invention, it is possible to optimally perform the operation of simultaneously pushing up and pushing down the rings of both ring members, which will be described later, according to the distance between the ring members of the towline fixing device when using the operation rod of the present embodiment. By adjusting to a small angle α, the operation can be performed reliably and easily. In general, when the angle α is adjusted in the range of about 30 ° to about 120 °, there is no problem in operation.

  The lever 8 includes a lower end of the ring inner periphery of the ring member existing below and an upper end of the ring inner periphery of the ring member existing above when one of the ring members 44 and 45 of the towline fixing device 40 is pulled to the lowest position. And one end is connected to the support portion 6 of the base member 4 to the pivot 7. The lever 8 further includes two ring insertion portions 10 and 11 described below.

  The ring insertion portions 10 and 11 are respectively inserted into the rings 46 and 47 of the two ring members 44 and 45 of the towline fixing device 40 and have an action of contacting the inner periphery of the ring. 10, 11 and the pivot 7 are arranged along the axis of the lever 8 so as to be arranged substantially linearly. Further, the ring insertion portions 10 and 11 are arranged so as to protrude and extend in a direction substantially perpendicular to the extending direction of the operation bar 2 when the attachment 3 is attached to the operation bar 2.

  In the present embodiment, these ring insertion portions 10 and 11 include holes 10a and 11a provided in the lever, and bolt members 10b and 11b each having a screw fixing portion at an end inserted into the holes 10a and 11a. The annular rotating members 10c and 11c that are rotatably engaged with the shaft portions of the bolt members 10b and 11b are formed. The rotating members 10c and 11c can be made of metal, resin, or rubber, and push up the rings 46 and 47 of the ring members 44 and 45 of the towline fixing device 40 using the operation bar 1 of the present embodiment described later. The ring members 44 and 45 have an action of reducing friction between the rings 46 and 47 and the ring insertion portions 10 and 11 in the operation of simultaneously pressing the ring members 44 and 45. After engaging the rotating members 10c, 11c with the bolt members 10b, 11b, after inserting the tip portions of the bolt members 10b, 11b into the holes 10a, 11a, the nuts are engaged with the screws and firmly fixed, Ring insertion portions 10 and 11 are formed.

  The distance between the two ring insertion portions 10 and 11 exists above and below the lower end of the ring inner periphery of the ring member existing below when one of the ring members 44 and 45 of the towline fixing device 40 is pulled to the lowest position. The ring member is fixed so as to be substantially equal to the length (L in FIG. 8A) with the upper end of the inner periphery of the ring. Since the ring members 44 and 45 are rotatably suspended by the swing member 43, the effect of the present invention can be obtained even if it does not exactly match the length of L. The ring insertion portions 10 and 11 are determined from the length between the left end of the inner periphery of the ring 47 of the unlocking ring member 45 and the right end of the inner periphery of the ring 46 of the locking ring member 44 in a state of being suspended by the moving member 43. Even when the length between them is slightly longer, the ring insertion portions 10 and 11 can be inserted into the rings 46 and 47, respectively. In the present embodiment, the hole 10 a is configured as a long hole extending in the axial direction of the lever 8. Therefore, by changing the position of the bolt member 10b with respect to the long hole 10a, the distance between the ring insertion portions 10 and 11 is set so that both the ring members 44 of the towline fixing device 40 when the operation rod 1 of the present embodiment is used. , 45 can be changed to a position where the operations for simultaneously pushing up and pushing down both the rings 46, 47 can be performed.

  The distance between the pivot 9 and the ring insertion portion 11 that is closer to the pivot 9 may be a length that allows simultaneous operation to push up and push down both rings 46 and 47, which will be described later. Specifically, it is 1/4 to 1/2 the length of L in FIG.

  Next, the operation method of the operating rod 1 of this Embodiment is demonstrated using FIG. In FIG. 3, the towline passing through the inside of the towline fixing device 40 is omitted for ease of explanation.

  When the operator performs the lock operation of the towline after attaching the attachment 3 to the operation rod-like body 2 and completing the operation rod 1, the two ring insertion portions 10 and 11 provided on the lever 8 are operated. Among them, the ring insertion portion 11 which is closer to the pivot 7 is inserted into the ring 46 of the locking ring member 44 which is going to be pulled downward, and the other ring insertion portion 10 is connected to the ring 47 of the unlocking ring member 45. When the operating rod 1 is pulled downward after the rotary members 10c and 11c of the ring insertion portions 10 and 11 are arranged so as to contact the inner periphery of the ring, the lever 8 is operated around the pivot 7 The ring insertion portion 11 inserted into the ring 46 of the locking ring member 44 that rotates with respect to the rod-like body 2 and is going to be pulled downward is operated by the rotating member 11c. While sliding the inner circumference of 6 to move to the vicinity of the lower end, push down the ring 46. At the same time, the ring insertion portion 10 inserted into the ring 47 of the unlocking ring member 45 moves to the vicinity of the upper end while sliding on the inner periphery of the ring 47 by the action of the rotating member 10c, and pushes up the ring 47. Therefore, the swing member 43 of the towline fixing device 40 reliably swings, and the pressing member 49 acts in conjunction with the swing member 43 to securely lock the tow lines 31 and 32.

  When performing the unlocking operation of the towline, contrary to FIG. 3, of the two ring insertion portions 10 and 11 provided on the lever 8, the ring insertion portion 11 closer to the pivot 7 is used. The other ring insertion portion 10 is inserted into the ring 47 of the locking ring member 44 into the ring 47 of the unlocking ring member 45 to be pulled downward, and the rotating members 10c of the ring insertion portions 10 and 11 are inserted. , 11c is arranged so as to contact the inner periphery of the ring, and then the operation rod 1 may be pulled downward.

  According to the operation rod 1 of the present embodiment, even when the conventional operation rod having a collar at the tip is used, even if the operator cannot pull the ring member to the lowest position of the ring, the operator can It is possible to pull the ring to the final position without fail by applying it with one hand.

  The present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the spirit of the present invention.

  For example, in the above-described embodiment, the restriction projection 9 in the attachment 3 is provided on the support portion 6 side of the base member 4, but the restriction projection 9 may be provided in the vicinity of the pivot 7 of the lever 8. . In the above-described embodiment, the hole 10a for forming the ring insertion portion 10 provided in the lever 8 of the attachment 3 is a long hole. However, the hole 11a for forming the ring insertion portion 11 is a long hole. Alternatively, a plurality of holes may be provided, and the bolt members 10b and 11b may be inserted into any of these and fixed.

  Further, as shown in FIG. 4, as the operation rod-like body 2 of the present invention, a rod-like body provided with a flange 2 a at the tip of the operation rod-like body like a conventional operation rod is used. The support part 6 of the base member 4 is provided with a flange insertion hole 12 for inserting the flange part 2a. After the flange part 2a is inserted into the flange insertion hole 12, the fixing part 5 of the base member 4 is inserted. May be attached to the operation rod-like body 2. According to this embodiment, the conventional operation rod can be used effectively, which is economically preferable.

  Further, in the above-described embodiment, the fixing portion 5 of the base member 4 of the attachment 3 is formed in a C shape, but the shape of the fixing portion 5 is not limited to this, and the tip of the operation rod-like body 2 Any shape can be used as long as it can be attached to. For example, as shown in FIG. 5, like the attachment with the collar portion in the conventional operating rod shown in FIG. 6, the fixing portion 5 is formed in a cap shape that covers the tip of the operating rod-like body 2, and the fixing portion The attachment 3 may be fixed to the operation rod-like body 2 by inserting a bolt into a notch provided in a part of the rod. If it does in this way, according to a use, since the conventional attachment provided with the collar part and the attachment of the present invention can be exchanged and used, it is economically preferable.

  Furthermore, in the above-described embodiment, the operation rod 1 including the operation rod-like body 2 and the attachment 3 has been described. However, the ring as described above is attached to the end of the operation rod-like body without using the attachment 3. Even if the lever provided with the insertion portion is directly connected by the pivot, the effect of the present invention can be obtained.

It is the schematic of the operation stick | rod of this Embodiment. It is the schematic of the attachment of the operating rod shown in FIG. It is the schematic explaining the operating method of the operating rod shown in FIG. It is the schematic which shows another form of this invention. It is the schematic which shows another form of this invention. It is the figure which showed the pole switch, the pulling rope for opening / closing operation, and the fixing device of this pulling rope. It is an enlarged view of the vicinity of the towline fixing device in FIG. FIG. 8 (a) is a plan view of a cross-section of the towline fixing device taken along the plane passing through the locking ring member and the unlocking ring member, as viewed from the front (FIG. FIG. 8B shows a cross section cut along a plane passing through line AA in FIG. 8A as seen in the direction of the arrow. .

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Operation rod 2 Operation rod-shaped body 3 Attachment 4 Base member 5 Fixing part 6 Support part 7 Pivot 8 Lever 9 Restriction projection part 10, 11 Ring insertion part 12 Butt part insertion hole

Claims (11)

A housing member attached to the utility pole, a pressing member movably attached to the housing member to lock or unlock the pulling rope for opening / closing operation of the pole switch in cooperation with the housing member, and the housing member A locking member that is attached to a shaft provided on the shaft so that both ends of the shaft can swing in the up-and-down direction, and is suspended on one end of the swinging member so as to be rotatable and has a ring at the lower end. A ring member and an unlocking ring member that is rotatably suspended at the other end of the swinging member and includes a ring at the lower end, and pulls the locking ring member downward to swing By tilting the member in one direction, the pressing member locks the towline, and by pulling the unlocking ring member downward and tilting the swinging member in the opposite direction, the pressing member unlocks the towing line. Is used for in that towrope fixation device adapted to, a operation rod for performing swinging operation of the swinging member towrope fixing device,
The operation rod is composed of an operation rod-shaped body and an attachment attached to an end of the operation rod-shaped body,
The attachment is
A base member provided with a fixing part to be attached to the end of the operating rod-like body, and a support part extending from the fixing part;
A lever attached so as to be swingable in the extending direction of the operating rod-like body when the attachment is attached to the operating rod-like body via the pivot to the support portion;
With
The lever includes, on one side of the pivot, two ring insertion portions respectively inserted into the rings of the two ring members of the towline fixing device and contacting the inner periphery of the ring. Are arranged so as to be arranged substantially linearly,
The ring member ring is located at the lower end of the ring inner periphery and above the ring member when the distance between the two ring insertion portions is one of the ring members of the towline fixing device pulled to the lowest position. An operating bar characterized by being approximately equal to the length of the inner circumference with the upper end.   The two ring insertion portions are provided so as to protrude in a direction substantially perpendicular to the extending direction of the operation rod-shaped body when the attachment is attached to the operation rod-shaped body. The operation stick described in 1.   A rotatable rotary member for reducing friction with the ring inner periphery is attached to a portion of the ring member in the two ring insertion portions that should contact the inner periphery of the ring. Item 3. The operation bar according to Item 1 or 2.   The operation rod according to any one of claims 1 to 3, wherein an interval between the two ring insertion portions is adjustable.   The lever according to any one of claims 1 to 4, wherein the lever is constituted by a rod or a substantially rectangular plate, and the pivot is disposed at an end of the rod or the substantially rectangular plate. The operation bar according to claim 1.   The support part of the said base member is provided so that it may extend in the extending | stretching direction of an operation rod-shaped body, when an attachment is attached to the operation rod-shaped body. The operation stick described in 1.   A hook part for hooking on the ring of the ring member is provided at the tip of the operating rod-like body, and a hole for inserting the hook part is provided in the support part of the base member. The operating rod according to any one of claims 1 to 6.   When the attachment is attached to the operating rod-like body at a position near the pivot of either the support portion of the base member or the lever, the straight line connecting the pivot and one of the ring insertion portions and the axis of the operating rod-like body The operation rod according to claim 1, wherein a restriction projection for restricting an angle to be formed is provided.   The position of the restricting projection is movable, and depending on the position of the restricting projection, a straight line connecting the pivot and one of the ring insertion portions when the attachment is attached to the operating rod, and an operating rod 9. The operating rod according to claim 8, wherein a minimum value of an angle formed by the body axis is adjusted.   The attachment as described in any one of Claims 1-9.   An operating rod comprising the lever according to any one of claims 1 to 6 attached to an end of the operating rod-like body via a pivot.

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