JP6446746B1 - Overhead laying equipment - Google Patents

Abstract

A lever fixing portion 11 fixes a closed state of a pair of lever portions 10a2, 10b2. The lever fixing release unit 12 releases the fixing of the lever fixing unit 11. The pair of elastic bodies 13a and 13b are provided at the tips of the pair of arm portions 10a1 and 10b1, respectively, and have recesses 13a1 and 13b1. The roller group 14 arranges the axial direction of each roller 14a in a direction parallel to the opening / closing direction of the pair of arm portions 10a1, 10b1, and the inner peripheral wall of each roller 14a is a pair of arm portions 10a1, 10b1 in a closed state. It is comprised by arrange | positioning each roller 14a so that 2nd space S2 smaller than 1st space S1 formed by may be formed. The hook portion 16 is provided at the other end 14a2 of the predetermined roller 14a so that the third space S3 formed by the inner peripheral wall includes the fourth space S4 formed by the recesses 13a1 and 13b1. The gate part 17 maintains the doorway of the hook part 16 in a closed state by the urging of the urging part.
[Selection] Figure 8

Description

  The present invention relates to an overhead wire laying apparatus.

  Conventionally, when laying (laying, stretching) overhead lines such as distribution lines, telephone cables, optical cables, solar power transmission lines, etc. via support poles such as power poles installed at predetermined intervals, messenger wires, kevlar A support wire such as a rope is stretched in advance on the utility pole, an overhead wire laying device is fixed to the support wire, and the overhead wire is laid on the utility pole via the overhead wire laying device.

  Conventionally, various techniques exist for such an overhead wire laying device. For example, Japanese Patent Laid-Open No. 11-262124 (Patent Document 1) discloses a fixing device and a fixing method for an overhead wire roller including a hanging hook, a fixing rod, a tightening rod, and a fixed rod pivoting shaft. ing. In this fixing device, the hanging hook has a recessed inner surface fitted into the assembly frame of the overhead wire roller. The fixing rod has a retaining hook formed in the front half at the left and right positions of the hanging hook so as to oppose the fitting inner surface, and the central portion is connected by an extension spring to bisect the front half. The tightening rod is configured such that the rear end side moves up and down around a rotation center axis provided at a height position substantially on a horizontal line with the highest position of the fitting inner surface. The fixed pivot mounting shaft pivotally attaches the latter half of the fixed rod and the fastening rod, and the outer periphery of the rotation center shaft is attached to a position where the fixed pivot mounting shaft rotates. Then, a dead center is formed at a point where the rotation center axis is located on a straight line connecting the tip of the holding hook at the position where the messenger wire is pressed and fixed to the inner surface and the fixed pivot axis. Further, pass the dead point and tilt the clamp. As a result, the overhead roller can be fixed at a desired position of the messenger wire with a single touch, or can be dissociated and quickly performed.

  Japanese Unexamined Patent Publication No. 2000-184533 (Patent Document 2) discloses a method for constructing a spiral support. In this construction method, one end of the spiral support and the tip of the towline are coupled to the leading pulley, and the spiral support having an inner diameter is transferred to the other utility pole while being wound around the messenger wire and the towline. The transfer is a procedure of pulling the tip of the towline with an electric self-feeder, and the other end of the helical support and one end of the next spiral support connected to the other are connected by a connector with male and female terminals. , A procedure for fixing the spiral support tool to the messenger wire with a fixing tool, and a procedure for drawing the cable into the spiral support tool. Thereby, it is said that it is possible to provide a construction method of a long-spanning cable-suspending spiral support that does not fall off or laterally shift by a safety method that does not require suspension work.

  Japanese Patent Laid-Open No. 2002-186127 (Patent Document 3) discloses a cable laying method. In this method, when a coil is extrapolated to a suspension wire previously stretched between utility poles, and a cable is erected via the coil, a cable and a feeding wire are inserted inside the coil with one end fixed, and the coil is not connected. By bundling the fixed end, one end of the cable, and the tip of the feed line, and then pushing the feed line, the coil and cable are simultaneously moved to the other power pole side, and the non-fixed end of the coil is moved to the other side. After fixing to the power pole side, pull out the feed wire from the coil. As a result, work efficiency can be further improved.

  Japanese Patent Laying-Open No. 2006-87251 (Patent Document 4) discloses a method for installing an aerial cable. In this method, an aerial cable laying method in which a support line is stretched between support columns, a roller is suspended on the support line, an aerial cable is pulled through the aerial cable through the roller, and then the aerial cable is supported and fixed to the support column. Assuming In this method, the length of the aerial cable positioned between the support pillars when the aerial cable is extended through the aerial cable to the roller is offset to a length and a predetermined slack when the aerial cable is fixed to the support pillar. The wire is drawn in a state that is the sum of the length required for forming the part. As a result, when the overhead cable is supported and fixed by forming an offset portion between the support columns, it is sufficient to use only a cable having a length pulled between the support columns. There is no need to use cables that are pulled between columns or send cables between adjacent support columns, so it is easy to support and fix overhead cables by forming offset parts between support columns. It can be done.

  Japanese Patent Laying-Open No. 2015-167429 (Patent Document 5) discloses a cable hanger attaching / detaching device. This device is fixed at an arrangement position on a messenger wire (long article), and a driven roller and a drive roller (a pair of rollers) that sandwich and press a cable hanger at a pinching point, and sending out a cable hanger to each roller and Rotation drive means for realizing pull-in. The outer peripheral surface of each roller is provided with a concave shape that accommodates the wire rod of the cable hanger in the radial direction at the pinching point. The direction in which the cable hanger is fed out and retracted is directed to an angle that coincides with the direction in which the wire extends at the pinching point when the cable hanger is suspended. As a result, the cable hanger can be more stably fed out and retracted.

Japanese Patent Laid-Open No. 11-262124 JP 2000-184533 A JP 2002-186127 A JP 2006-87251 A JP2015-167429A

  In laying an overhead wire, the overhead wire laying device is usually suspended from a support wire, and then the overhead wire to be laid is passed through a roller of the overhead wire laying device to lay the overhead wire. Since the overhead line laying is mainly a work at a high place, the overhead line laying device suspended from the support line may be detached from the support line due to some vibration or swinging of the support line or the like. When the overhead wire laying device is detached from the support wire, there is a problem that it collides with a person or an object below and causes an accident. In particular, there has been a strong demand for safety and security in recent years, and there is a need for an overhead wire laying device that does not fall reliably.

  On the other hand, in terms of workability, there is a need for an overhead wire laying device that can be fixed to or released from a support wire with a single touch and that does not cause winding of the overhead wire.

  In the technique described in Patent Document 1, as described above, it is suspended by the hanging hook of the overhead wire laying device, and there is a possibility of dropping. Moreover, in the technique described in Patent Document 2, since the spiral support is wound around the messenger wire and the towline, there is no possibility of dropping, but workability is poor. In the technique described in Patent Document 3, since a coil is extrapolated to a suspension wire stretched between utility poles, there is no possibility of dropping, but this technique is also inferior in workability. In the technique described in Patent Document 4, there is a possibility of dropping because the roller is suspended from the support wire. In the technique described in Patent Document 5, a cable hambar is attached to a messenger wire with a cable hanger attachment part, but if this attachment part comes off for some reason, it may fall.

  Therefore, the present invention has been made to solve the above-mentioned problems, and an overhead wire laying apparatus that is excellent in both workability and safety, that can be fixed to a support line with one touch and does not fall 100% from the support line. The purpose is to provide.

  As a result of intensive studies, the present inventor has completed a novel overhead wire laying apparatus according to the present invention. That is, the overhead wire laying device according to the present invention includes a hand vise, a lever fixing portion, a lever fixing release portion, a pair of elastic bodies, a roller group, a roller fixing portion, a hook portion, and a gate portion. Prepare. The hand vice opens and closes the pair of arm portions corresponding to the opening and closing of the pair of lever portions by connecting a pair of lever portions extending from each of the pair of arm portions by a pivot. The lever fixing portion fixes the closed state of the pair of lever portions when the pair of lever portions are closed. When operated, the lever fixing release part releases the fixing of the lever fixing part and opens the pair of lever parts. The pair of elastic bodies is provided at each of the ends of the pair of arm portions, and has a recess that is vacant along a direction perpendicular to the opening / closing direction of the pair of arm portions. The roller group has a pair of arm portions in a closed state in which the axial direction of each roller is arranged in a direction parallel to the opening / closing direction of the pair of arm portions and viewed from a direction perpendicular to the opening / closing direction of the pair of arm portions. It is comprised by arrange | positioning each said roller so that the 2nd space smaller than the 1st space formed by may be formed. The roller fixing part attaches and fixes one end of each roller to a part of the arm part. The hook portion is a recess of the pair of elastic bodies in the pair of arm portions in the closed state in a third space formed by the inner wall of the hook portion when viewed from a direction perpendicular to the opening / closing direction of the pair of arm portions. It is provided at the other end of the predetermined roller so as to include the fourth space to be formed. The gate portion maintains the doorway of the hook portion in a closed state by the biasing of the biasing portion. The overhead wire laying device according to the present invention is configured such that the gate portion is pressed against a support line, the gate portion is opened, the support wire is passed through an entrance / exit of the hook portion, and the biasing portion biases the gate. Close the part, put the support line into the recesses of the pair of elastic bodies, close the pair of lever parts, fix the closed state of the pair of lever parts with the lever fixing part, and form with the roller group The overhead wire is inserted into the second space, and the overhead wire is laid.

  According to the present invention, it is possible to provide an overhead wire laying apparatus that is excellent in both workability and safety, and can be fixed to the support line with a single touch and does not fall 100% from the support line.

It is the front view (FIG. 1A) which shows the open state of the hand vice of the overhead wire laying apparatus based on this invention, and a right view (FIG. 1B). It is the rear view (FIG. 2A) which shows the open state of the hand vice of the overhead wire laying apparatus based on this invention, and a perspective view (FIG. 2B). It is the front view (FIG. 3A) which shows the closed state of the hand vice of the overhead wire laying apparatus based on this invention, and a right view (FIG. 3B). They are a rear view (Drawing 4A) and a perspective view (Drawing 4B) which show a closed state of a hand vice of an overhead wire laying device concerning the present invention. It is the front view (Drawing 5A) which shows the relation between the 1st space and the 2nd space, and the back view (Drawing 5B) which shows the relation between the 3rd space and the 4th space. The perspective view (FIG. 6A) which shows an example at the time of hooking the hook part of the overhead wire laying apparatus which concerns on this invention to a support wire, and the perspective view which shows an example at the time of pinching the front-end | tip of the hand vice of an overhead wire laying apparatus to a support wire (FIG. 6B). The perspective view (FIG. 7A) which shows an example at the time of making an overhead wire penetrate the some roller of the overhead wire laying apparatus which concerns on this invention, and the perspective view which shows an example at the time of making an overhead wire penetrate in the space enclosed by the several roller (FIG. 7B). The perspective view (Drawing 8A) which shows an example at the time of making an overhead line penetrate in the space surrounded by a plurality of rollers of the overhead line laying device concerning the present invention, and an example when the hand vice of an overhead wire laying device is in an open state FIG. 8 is a perspective view (FIG. 8B). It is a figure which shows an example at the time of fixing two types of overhead wire laying apparatuses to a support wire, and inserting the overhead wire. It is a figure which shows an example when the fixation of the lever fixing | fixed part of two types of overhead wire laying apparatuses is cancelled | released.

  Embodiments according to the present invention will be described below with reference to the accompanying drawings for understanding of the present invention. In addition, the following embodiment is an example which actualized this invention, Comprising: The thing of the character which limits the technical scope of this invention is not.

  An overhead wire laying device 1 according to the present invention is an overhead wire laying device that is fixed to a support wire such as a messenger wire and that passes through an overhead wire such as a distribution line, and as shown in FIGS. The lever fixing part 11, the lever fixing release part 12, a pair of elastic bodies 13 a and 13 b, a roller group 14, a roller fixing part 15, a hook part 16, and a gate part 17 are provided.

  The hand vice 10 includes a pair of lever portions (in FIG. 1 to FIG. 4, the left arm portion 10 a 1 and the right arm portion 10 b 1) extending from each of the pair of arm portions (the right arm portion 10 b 1 in FIG. 1 to FIG. 4). By connecting the lever portion 10a2 and the left lever portion 10b2) by the pivot 10c, the pair of arm portions 10a1 and 10b1 are opened and closed corresponding to the opening and closing of the pair of levers 10a2 and 10b2. 1 and 2 show the overhead wire laying device in a state where the pair of lever portions 10a2 and 10b2 of the hand vice 10 are opened, and FIGS. 3 and 4 show the pair of lever portions 10a2 and 10b2 of the hand vice 10 closed. The overhead line laying apparatus in a state is shown.

  The lever fixing portion 11 fixes the closed state of the pair of lever portions 10a2 and 10b2 when the pair of lever portions 10a2 and 10b2 are closed. When operated, the lever fixing release unit 12 releases the fixing of the lever fixing unit 11 to open the pair of lever units 10a2 and 10b2.

  A pair of elastic bodies (the left-side elastic body 13a and the right-side elastic body 13b in FIGS. 1 to 4) are provided at the ends of the pair of arm portions 10a1 and 10b1, and open and close the pair of arm portions 10a1 and 10b1. Concave portions 13a1 and 13b1 which are vacant in a direction perpendicular to the direction.

  The roller group 14 arranges the axial direction of each roller 14a in a direction parallel to the opening / closing direction of the pair of arm portions 10a1, 10b1, and, as shown in FIG. 5A, the opening / closing direction of the pair of arm portions 10a1, 10b1. When viewed from the right angle direction, each roller 14a is formed such that the inner peripheral wall of each roller 14a forms a second space S2 smaller than the first space S1 formed by the pair of arm portions 10a1 and 10b1 in the closed state. It is comprised by arranging. The roller fixing part 15 attaches and fixes one end 14a1 of each roller 14a to a part of the arm parts 10a1 and 10b1.

  As shown in FIG. 5B, the hook portion 16 is closed in a third space S3 formed by the inner peripheral wall of the hook portion 16 when viewed from the direction perpendicular to the opening and closing direction of the pair of arm portions 10a1 and 10b1. It is provided at the other end 14a2 of the predetermined roller 14a so as to include a fourth space S4 formed by the recesses 13a1 and 13b1 of the pair of elastic bodies 13a and 13b in the pair of arm portions 10a1 and 10b1. The gate part 17 maintains the doorway of the hook part 16 in a closed state by the biasing of the biasing part. The hook portion 16 and the gate portion 17 have a so-called carabiner configuration, for example, and the urging portion is built in between the hook portion 16 and the gate portion 17.

  And the overhead wire laying device 1 according to the present invention, as shown in FIG. 6A, presses the gate portion 17 against the support wire 20, opens the gate portion, passes the support wire 20 through the doorway of the hook portion 16, The gate portion 17 is closed by the urging force of the urging portion. Further, as shown in FIG. 6B, the support wire 20 is inserted into the recesses 13a1 and 13b1 of the pair of elastic bodies 13a and 13b, the pair of lever portions 10a2 and 10b2 are closed, and the pair of lever portions 10a2 and 10b2 are closed. The state is fixed by the lever fixing portion 11, and as shown in FIG. 7A, the overhead line 21 is inserted into the second space S2 formed by the roller group 14, and as shown in FIGS. 7B and 8A, the overhead line 21 Laying.

  As a result, the overhead wire laying device 1 can be easily fixed to the support wire 20, and the overhead wire 21 can be laid by inserting the overhead wire 21 into the overhead wire laying device 1. Further, even if the lever fixing release portion 12 of the overhead wire laying device 1 is activated for some reason and the pair of arm portions 10a1 and 10b1 are opened, the hook portion 16 is caught on the support wire 20 as shown in FIG. 8B. And since the gate part 17 is maintaining the entrance / exit of the hook part 16 in the closed state, the overhead wire laying apparatus 1 does not fall 100% below, and it is excellent in safety.

  Specifically, first, fixing the overhead wire laying device 1 to the support wire 20 is a work at a high place, and therefore, workability is required. In the overhead wire laying device 1 according to the present invention, the pair of arm portions 10a1 and 10b1 are closed by closing (grip) the pair of lever portions 10a2 and 10b2, and the lever fixing portion 11 is automatically paired with the pair of lever portions 10a2, The closed state of 10b2 is fixed. Therefore, the closed state of the pair of arm portions 10a1 and 10b1 is also fixed. That is, when the operator sandwiches the support wire 20 between the recesses 13a1 and 13b1 of the pair of elastic bodies 13a and 13b in the pair of arm portions 10a1 and 10b1, the pair of arm portions 10a1 and 10b1 and the pair Since the lever portions 10a2 and 10b2 are fixed, it is possible to easily fix the overhead wire laying device 1 by sandwiching the support wire 20 between the recesses 13a1 and 13b1 of the elastic bodies 13a and 13b by the operator's one-touch grip operation. This makes it possible to facilitate the work.

  Moreover, the hook part 16 and the gate part 17 are comprised, for example as a carabiner, and the gate part 17 maintains the entrance / exit of the hook part 16 in a closed state by urging | biasing of urging parts, such as a spring. That is, the gate part 17 functions as a safety lock that locks the door part 16 so that the doorway of the hook part 16 is always closed and is not opened without permission. Thus, when the hook portion 16 is first suspended from the support wire 20, if the operator presses the gate portion 17 against the support wire 12, the gate portion 17 resists the urging force of the urging portion. Since the doorway of the hook part 16 is opened, the support wire 20 can be easily suspended from the hook part 16 through the doorway of the hook part 16. Further, when the support wire 20 is suspended from the hook portion 16, the biasing portion of the gate portion 17 is resumed, and the gate portion 17 automatically closes the entrance / exit of the hook portion 16 by the biasing portion. As a result, the support line 20 does not open the gate portion 17 without detachment from the hook portion 16, and the safety can be further improved.

  Here, the support line 20 from which the hook portion 16 is suspended extends in a direction substantially perpendicular to the opening / closing direction of the pair of arm portions 10a1, 10b1, but the operator suspends the hook portion 16 from the support line 20. After that, when the support wire 20 is sandwiched between the recesses 13a1 and 13b1 of the elastic bodies 13a and 13b, the recesses 13a1 of the closed elastic bodies 13a and 13b when viewed from the direction perpendicular to the opening / closing direction of the pair of arm portions 10a1 and 10b1. Since the fourth space S4 of 13b1 is included in the third space S3 of the hook portion 16, the support line 20 from which the hook portion 16 is suspended is exactly the recess 13a1 of the pair of elastic bodies 13a and 13b. Therefore, the operator can easily pinch the support wire 20 between the recesses 13a1 and 13b1 of the elastic bodies 13a and 13b.

  Furthermore, when viewed from the direction perpendicular to the opening / closing direction of the pair of arm portions 10a1, 10b1, the second space S2 of the roller group 14 in the closed state is formed by the pair of arm portions 10a1, 10b1 in the closed state. Since the space is smaller than the space S1, the operator closes the overhead line 21 extending in the direction parallel to the support line 20 and substantially perpendicular to the opening / closing direction of the pair of arm portions 10a1, 10b1. Since the overhead wire 21 is surrounded by the inner peripheral wall of the roller 14a of the roller group 14, the overhead wire 21 is not caught on the pair of arm portions 10a1, 10b1 due to the slipperiness of the inner peripheral wall of the roller 14a. , It can be sent out safely.

  Here, the overhead wire laying device 1 according to the present invention includes a lever fixing portion 11 and a lever fixing releasing portion 12. This is because it is necessary to fix the closed state of the pair of lever portions 10a2 and 10b2 during the laying of the overhead wire, and the closed state of the pair of lever portions 10a2 and 10b2 needs to be released after the laying of the overhead wire is completed. Because there is. That is, the pair of lever portions 10a2 and 10b2 are required to both be fixed in the closed state and release the fixed state in the closed state.

  Therefore, when the overhead wire 21 is sent out, as described above, the lever fixing release portion 12 of the overhead wire laying device 1 may be operated for some reason. If the lever fixing release portion 12 is operated against the operator's will, the pair of lever portions 10a2, 10b2 are released from being closed, the pair of lever portions 10a2, 10b2 are opened, and the pair of lever portions 10a2, 10b2 are opened. The arm portions 10a1 and 10b1 are opened, and the pinching of the concave portions 13a1 and 13b1 of the pair of elastic bodies 13a and 13b is released. Then, the overhead wire laying device 1 is likely to fall from the support wire 20, but in the present invention, the hook portion 16 is caught by the support wire 20, and the gate portion 17 maintains the entrance / exit of the hook portion 16 in a closed state. Therefore, the overhead wire laying device 1 is not detached from the support wire 20 and remains in a state of being caught on the support wire 20. Thereby, the fall of the overhead wire laying apparatus 1 during work can be reliably prevented 100%, and safety can be improved. That is, the overhead wire laying device 1 according to the present invention has both workability and safety that can be fixed to the support line with one touch and does not fall 100% from the support line.

  Here, the shape of the pair of arm portions 10a1, 10b1 and the pair of lever portions 10a2, 10b2 in the hand vice 10 is not particularly limited. For example, as shown in FIG. 1 to FIG. 4, the shape from the arm portions 10 a 1, 10 b 1 to the lever portions 10 a 2, 10 b 2 may be S-shaped, and may be connected to be freely opened and closed by a pivot 10 c near the center of the S-shape. . As another configuration, for example, the shape from the arm portions 10a1 and 10b1 to the lever portions 10a2 and 10b2 may be an I shape, and may be opened and closed by a pivot 10c near the center of the I shape. Other shapes may be L-shaped. The configuration of the hand vice 10 is not particularly limited.

  Moreover, there is no limitation in particular in the structure of the lever fixing | fixed part 11. FIG. For example, as shown in FIGS. 1 to 4, an extendable rod is disposed between the right lever portion 10a2 and the left lever portion 10b2, and one end of the rod is swung near the upper side of the right lever portion 10a2. The other end of the rod is arranged to be swingable near the lower portion of the left lever portion 10b2, the rod is inserted into the opening of the short piece of the L-shaped lever portion, and the short piece of the L-shaped lever portion and An urging portion such as a spring is provided between the rod. When the right lever portion 10a2 and the left lever portion 10b2 are closed, the biasing portion biases the short piece of the L-shaped lever portion, and the short piece of the L-shaped lever portion is caught on the rod, so that the extension of the rod is fixed. Then, the closed state of the right lever portion 10a2 and the left lever portion 10b2 is fixed. Such a structure of the lever fixing portion 11 can be found in a general hand vice 10. However, as another structure, for example, a gear type may be used.

  Moreover, there is no limitation in particular in the structure of the lever fixation cancellation | release part 12. FIG. For example, as shown in FIGS. 1 to 4, when the lever fixing portion 11 includes the above-described L-shaped lever portion, the lever fixing release portion 12 is a long piece of the L-shaped lever portion, and the L-shaped By operating the long piece of the lever part, the short piece of the L-shaped lever part moves while resisting the urging of the urging part, releasing the hook of the stick from the short piece of the L-shaped lever part, and the stick is extended Thus, the closed state of the right lever portion 10a2 and the left lever portion 10b2 is released. Such a configuration of the lever fixing release unit 12 is found in a general hand vice 10, but as another configuration, for example, a switch type may be used.

  Moreover, there is no limitation in particular in the shape of a pair of elastic body 13a, 13b. For example, as shown in FIGS. 1 to 4, a rectangular parallelepiped corresponding to the tips of the pair of arm portions 10a1 and 10b1 can be mentioned, but other shapes may be used. The material of the pair of elastic bodies 13a and 13b is not particularly limited, and examples thereof include hard rubber.

  Moreover, there is no limitation in particular in the structure of the recessed parts 13a1 and 13b1 of a pair of elastic bodies 13a and 13b. For example, as shown in FIG. 1 to FIG. 4, a V-shaped groove can be cited as a cross-sectional view. However, as another configuration, a U-shaped groove or other shapes may be used as the cross-sectional view. .

  By the way, the recesses 13a1 and 13b1 of the pair of elastic bodies 13a and 13b do not need to be opened along the opening and closing direction of the pair of arm portions 10a1 and 10b1, and the opening and closing direction of the pair of arm portions 10a1 and 10b1. As long as it is open within a range including a predetermined recess angle with the perpendicular direction as the center. Here, the recess angle is, for example, in the range of 1 to 15 degrees.

  Moreover, the axial direction of the roller 14a of the roller group 14 does not need to be arranged in a direction strictly parallel to the opening / closing direction of the pair of arm portions 10a1, 10b1, and is parallel to the opening / closing direction of the pair of arm portions 10a1, 10b1. What is necessary is just to arrange | position in the range containing a predetermined | prescribed roller angle as a center. Here, the roller angle is within a range of 1 degree to 30 degrees, for example.

  Specifically, as shown in FIG. 1B, a predetermined angle α (for example, the axial direction A of the roller 14a to which the hook portion 16 is attached is centered on a direction parallel to the opening / closing direction L of the pair of arm portions 10a1 and 10b1. , 20 degrees), and the hook portion 16 is disposed at a position away from the concave portions 13a1 and 13b1 of the pair of elastic bodies 13a and 13b in the pair of arm portions 10a1 and 10b1 in the closed state. As a result, when the operator hangs the hook portion 16 from the support wire 20, the distance between the hook portion 16 and the elastic bodies 13a and 13b at the tips of the arm portions 10a1 and 10b1 is increased. In addition to being easy to lower, the recesses 13a1 and 13b1 of the elastic bodies 13a and 13b at the tips of the arm portions 10a1 and 10b1 are easily sandwiched in the support line 20 after the hook portion 16 is suspended.

  Moreover, there is no limitation in particular in the number of the rollers 14a. For example, as shown in FIGS. 1 to 4, there may be three, four or more. Since the plurality of rollers 14a only need to form the second space S2 surrounded by the inner peripheral wall, when the number of the rollers 14a is three, each of the three rollers 14a is a side, and the upper side is a vertex. They are arranged in a triangular shape with the bottom as the bottom, or in an inverted triangle with the bottom as the apex and the top as the base. When the number of the rollers 14a is four, each of the four rollers 14a is arranged in a quadrangular shape with the sides as sides.

  Moreover, there is no limitation in particular in the arrangement | positioning form of the roller 14a. For example, the roller 14a may be disposed so as to be rotatable along the axial direction, or may be disposed with fixed rotation. That is, the overhead wire 21 is not particularly limited as long as it is inserted into the second space S2 surrounded by the inner peripheral wall of the roller 14a and does not get caught by the roller 14a due to the slipperiness of the inner peripheral wall of the roller 14a.

  Moreover, there is no limitation in particular in the fixed form of the roller 14a by the roller fixing | fixed part 15. FIG. For example, as shown in FIGS. 1 to 4, when the number of rollers 14a is three, the roller fixing portion 15 disposed on the left arm portion 10a1 is a first roller at the tip of the left arm portion 10a1. With the other end 14b of 14a facing, one end 14a1 of the first roller 14a is fixed to the back side of the left arm portion 10a1, and the roller fixing portion 15 installed on the right arm portion 10a2 With the other end of the second roller 14a facing the tip of the arm portion 10a2, the one end 14a1 of the second roller 14a is fixed to the back side of the right arm portion 10a2, and the vicinity of the center of the left arm portion 10a1 With the other end of the third roller 14a facing the other end, one end 14a1 of the third roller 14a is fixed to the front side of the right arm portion 10a2. That is, one roller 14a is fixed in the roller fixing portion 15 of the left arm portion 10a1, and two rollers are fixed in the roller fixing portion 15 of the right arm portion 10b1, so that the three rollers 14a are triangular. The roller 14a is fixed. In this way, the number of rollers 14a is three, and the three rollers 14a are arranged in a triangular shape, thereby reducing the number of parts and facilitating fixing of the rollers 14a to the pair of arm portions 10a1 and 10b1. At the same time, the overhead wire laying device 1 can be reduced in weight. If it is the above-mentioned composition, only two roller fixed parts 15 are enough. In addition, the above is an example of the fixed form of the roller 14a, and the fixed form of the roller 14a is appropriately changed in design according to the number of the rollers 14a and the shape of the roller group 14.

  Moreover, there is no limitation in particular in the structure of the roller fixing | fixed part 15. FIG. For example, as shown in FIGS. 1 to 4, it is configured as a U-shaped fitting that fits from the outside near the center of the arm portions 10 a 1 and 10 b 1 and fixes one end 14 a 1 of the roller 14 a. It does not matter if it is configured.

  Moreover, although the structure of the hook part 16 and the gate part 17 assumes the carabiner, for example, there is no limitation in particular in this. As long as the structure is similar to that of a carabiner, a hook with a safety valve may be used. The shape of the hook part 16 is not particularly limited, and examples thereof include an oval, a circle, and a polygon. There are no particular limitations on the shape of the doorway of the hook portion 16 and the shape of the gate portion 17.

  The position of the entrance / exit of the hook portion 16 is not particularly limited. For example, as shown in FIGS. 1 to 4, it is preferably provided in the direction toward the distal ends of the pair of arm portions 10 a 1 and 10 b 1. As a result, if the operator swings up the hand vice 10 and brings the ends of the pair of arm portions 10a1 and 10b1 closer to the support line 20, the entrance / exit of the hook portion 16 approaches the support line 20; Can be easily hooked on the hook portion 16, and the subsequent sandwiching of the pair of elastic bodies 13a and 13b into the support wire 20 is facilitated, and the workability can be further improved.

  Now, the operational effects of the overhead wire laying device 1 according to the present invention will be specifically described below. 1-4, two types of large and small overhead wire laying devices 1 according to the present invention are produced, and a thin rope 20 simulating a messenger wire is stretched, and two types of overhead wire laying devices 1 are attached thereto. Furthermore, a thick rope 21 simulating a distribution line was laid through two types of overhead wire laying apparatuses 1. As shown in FIG. 9, any overhead wire laying device 1 can be easily fixed to the support wire 20, and the overhead wire 21 can be easily inserted.

  Then, the support wire 20 and the overhead wire 21 are forcibly shaken to give swinging and vibration to the overhead wire laying device 1 so that the fixing of the lever fixing portion 11 is released. Then, the lever fixing release part 12 was operated for some reason, and the fixing of the lever fixing part 11 was released. However, as shown in FIG. 10, depending on the configuration of the hook part 16 and the gate part 17 of the carabiner, The device 1 was also suspended from the support wire 20 and did not fall. Thereby, even if it was any overhead wire laying apparatus 1, 100% did not fall, and it has confirmed that it was excellent in safety.

  As described above, the overhead wire laying device according to the present invention is useful in the electric wire construction field, the telephone line construction field, the solar power generation construction field, and other construction fields where it is necessary to lay the overhead line along the support line. It is effective as an overhead wire laying device that can be fixed to the support wire with a single touch and does not fall 100% from the support wire, and is excellent in both workability and safety.

DESCRIPTION OF SYMBOLS 1 Overhead laying apparatus 10 Hand vice 11 Lever fixed part 12 Lever fixed release part 13a, 13b Elastic body 14 Roller group 15 Roller fixed part 16 Hook part 17 Gate part

Claims (4)

A hand vise that opens and closes the pair of arm portions in response to opening and closing of the pair of lever portions by connecting a pair of lever portions extending from each of the pair of arm portions by a pivot,
When the pair of lever portions are closed, a lever fixing portion that fixes the closed state of the pair of lever portions;
When operated, the lever fixing release portion that releases the fixing of the lever fixing portion and opens the pair of lever portions, and
A pair of elastic bodies provided at each of the ends of the pair of arm portions, and having a recessed portion vacant along a direction perpendicular to the opening and closing direction of the pair of arm portions;
The axial direction of each roller is arranged in a direction parallel to the opening / closing direction of the pair of arm portions, and the inner peripheral wall of each roller is in a closed state when viewed from a direction perpendicular to the opening / closing direction of the pair of arm portions. A group of rollers configured by arranging the rollers so as to form a second space smaller than the first space formed by the pair of arm portions;
A roller fixing part for fixing one end of each roller to a part of the arm part; and
When viewed from a direction perpendicular to the opening / closing direction of the pair of arm portions, a third space formed by the inner wall of the hook portion is formed by a pair of elastic body recesses in the pair of arm portions in the closed state. A hook portion provided at the other end of the predetermined roller so as to include four spaces;
A gate portion that keeps the doorway of the hook portion closed by the biasing of the biasing portion;
With
The gate portion is pressed against a support line, the gate portion is opened, the support line is passed through an entrance / exit of the hook portion, and the gate portion is closed by the biasing portion, and the pair of elastic bodies The support wire is inserted into the recess, the pair of lever portions are closed, the closed state of the pair of lever portions is fixed by the lever fixing portion, and an overhead wire is formed in the second space formed by the roller group. An overhead wire laying device that lays the overhead wire through. The axial direction of the roller to which the hook part is attached is inclined at a predetermined angle around a direction parallel to the opening / closing direction of the pair of arm parts,
The overhead wire laying device according to claim 1, wherein the hook portion is disposed at a position away from the concave portions of the pair of elastic bodies in the pair of arm portions in the closed state. Among the pair of arm portions, the roller fixing portion disposed on the left arm portion is configured such that one end of the first roller is placed with the other end of the first roller facing the tip of the left arm portion. Fix to the back side of the left arm part,
The roller fixing portion installed on the right arm portion is configured such that one end of the second roller is placed on the back side of the right arm portion with the other end of the second roller facing the tip of the right arm portion. The one end of the third roller is fixed to the front side of the right arm portion with the other end of the third roller facing the center of the left arm portion. The overhead wire laying device described in 1. The overhead wire laying device according to any one of claims 1 to 3, wherein a position of an entrance / exit of the hook portion is provided in a direction toward a tip of the pair of arm portions.