JP5579890B1 - Tree stick cutting hot stick - Google Patents

Abstract

Provided is a tree stick cutting hot stick that prevents water droplets from entering the inside of a hot stick main body and realizes easy tree cutting work at a high place.
A tree branch cutting hot stick (1) includes a main shaft portion (12) having an insulating property, a sub shaft portion (14) disposed on a side of the main shaft portion (12), and an inner portion of the main shaft portion (12). A connecting member 20 that protrudes from the distal end and is slidable, a lever portion 50 that slides the connecting member 20 and is pivotally attached to the distal end portion of the connecting member 20. A scissors-type cutting portion 30 having a fixed blade portion with a movable blade portion and a base end portion fixed to the distal end portion of the connecting member, and a first rain gutter 22 made of rubber fixed to the distal end portion of the connecting member 20 The first rain gutter 22 holds the state where the tip of the main shaft portion 12 is covered when the lever member 50 is operated to slide the connecting member 20.
[Selection] Figure 1

Description

  The present invention relates to a tree branch cutting hot stick applied to cutting a tree branch approaching a distribution line or the like.

  Conventionally, a tree planted in the vicinity of a utility pole, a distribution line, and the like grows, so that branches and leaves of the tree may approach the utility pole and the distribution line. If it is left as it is, the branch extends to the vicinity of the distribution line, and the branch is shaken by the strong wind to come into contact with the distribution line and the distribution line is cut off, which may cause an accidental power failure. Therefore, the branches and leaves are separated from the distribution line by periodically performing logging work.

  By the way, in order to perform a tree cutting operation at a high place, usually a high branch cutting scissor having a long handle portion is used. However, since the work is performed near the distribution line, in consideration of the safety of the worker, it is desirable that the operation part by the worker is a long member having an insulating property.

  Conventionally, as a long tool having a cutting function with scissors at the tip, there is a foreign matter removing tool for live lines described in Patent Document 1.

  This foreign matter removing tool for live wire is composed of a long pole made of an insulating material, a pair of holding members mounted on the tip of the pole, one of which is a movable side and the other side is a fixed side, A handle portion made of an insulating material attached to the rear end portion and provided with a pulling lever, and inserted into the inside of the pole so as to be able to reciprocate, and one end side is connected to the movable side of the holding member and the other end side is And an actuating rod connected to the pulling lever. The holding member is configured to be able to hold the object to be held by opening and closing the movable side by the pulling operation of the pull lever of the handle member. Furthermore, as shown in FIG. 7 of Patent Document 1, the pair of holding members are provided with a pair of cutting blades corresponding to the movable side and the fixed side, respectively, leaving the holding portion at the substantially distal end portion. The structure is such that it can be cut by the pulling operation of the pulling lever.

JP 2000-83308 A

  Incidentally, in the foreign matter removing tool for live wire described in Patent Document 1, FIGS. 7 and 8 of Patent Document 1 describe a hook-shaped member on the base end side of the pair of holding members. The shaped member is considered to function as a rain gutter for preventing water from entering the pole. However, in this case, since the operating rod is movable, it is necessary to form a hole through which the operating rod is inserted in the bowl-shaped member. For this reason, when the operation | work in rain or a branch is wet, there exists a possibility that a water droplet may approach into a pole from the clearance gap between an action | operation rod and a hole.

  The present invention solves such problems, prevents water droplets from entering the inside of the hot stick main body, and realizes easy tree cutting work for trees in high places. The purpose is to provide.

  In order to achieve the above object, the present invention has the following configuration.

(1) A main shaft portion made of a long cylindrical member having insulating properties and a long shaft member having insulating properties, and a sub shaft arranged in parallel to the main shaft portion on the side of the main shaft portion. Part, a lever part provided at a base end part of the main shaft part and operated by a user's operation, provided inside the main shaft part, and in the main shaft part in conjunction with the operation of the lever part. An insulating connecting member that slides, a movable blade portion in which the end portion of the connecting member is fixed to the base end portion and the tip end side is formed in a blade shape, and the base end portion is at the tip of the auxiliary shaft portion A scissor type that has a fixed blade portion that is fixed and has a blade shape on the tip end side, and is supported by a shaft member so that the center portion of the movable blade portion and the center portion of the fixed blade portion can be rotated with respect to each other. The first rain-cut made of rubber fixed to the movable blade part side of the cutting part and the connecting member A tree stick cutting hot stick that operates the cutting part by a user's operation of the lever part, wherein the first rain-cutting stick protrudes from a tip end of the main shaft part of the connecting member. A conical portion having an inclined surface that is inclined so as to expand toward the tip side of the main shaft portion, and an end portion of the inclined surface of the conical portion. A tree stick cutting hot stick comprising: a cylindrical portion that holds a state where the tip of the main shaft portion is covered when the connecting member is moved by operating the lever portion.

  According to (1), since the main shaft portion and the sub shaft portion are configured in two axes, it is possible to ensure the length from the rotation fulcrum of the cutting portion to the fixed portion of the connecting member in the movable blade portion. Become. Accordingly, the movable blade portion can be pushed into the branch with a force larger than the force for operating the lever portion, and the branch can be easily cut. In addition, when the work or the branch is wet in the rain, water droplets transmitted from the cutting portion to the connecting member flow down through the first rain gutter. At this time, since the tip end portion of the main shaft portion is maintained in a state covered with the first rain gutter, water droplets can be prevented from entering from the front end portion of the main shaft portion. Thereby, the insulation between the cutting part and the lever part inside the main shaft part is maintained.

  (2) In (1), the cutting portion is provided on a side surface of the movable blade portion and the fixed blade portion, and protrudes along the thickness direction of each of the movable blade portion and the fixed blade portion. A pair of gripping pieces is provided, and the pair of gripping pieces are opposed to each other in a state where the tip end side of the fixed blade portion and the tip end side of the movable blade portion are overlapped, and grip the object cut by the cutting portion. Tree stick cutting hot stick characterized by that.

  According to (2), the branch immediately after being cut by the cutting portion can be held by the holding piece, and the cut branch can be prevented from falling on the electric wire.

  (3) The tree branch cutting hot stick according to (1) or (2), further comprising a second rain gutter made of rubber fixed to a base end portion of the fixed blade portion.

  According to (3), when the auxiliary shaft portion is a cylindrical member, it is possible to prevent water droplets from entering the auxiliary shaft portion.

  (4) The tree branch cutting hot stick according to (1) to (3), wherein the connecting member is made of FRP.

  According to (4), since FRP has insulating properties and high strength, insulation between the cut portion and the lever portion inside the main shaft portion is maintained, and the connecting member can be made thin. It becomes possible to reduce the overall weight.

  ADVANTAGE OF THE INVENTION According to this invention, while preventing a water drop from entering the inside of a hot-stick main body, it is possible to provide a tree-branching hot stick that realizes easy tree-branching work at a high place. Become.

It is a front view which shows the structure of the tree branch cutting hot stick 1 in one Embodiment of this invention. 4 is a perspective view showing a configuration of a cutting unit 30. FIG. It is explanatory drawing which shows operation | movement of the tree branch cutting hot stick 1. FIG.

Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings.
FIG. 1 is a front view showing a configuration of a tree branch cutting hot stick 1 according to an embodiment of the present invention. The tree branch cutting hot stick 1 includes a hot stick main body 10, a cutting part 30, and a lever part 50.

  The hot stick body 10 includes a main shaft portion 12, a sub shaft portion 14, a drainer rod 16, a safety margin rod 18, a connecting member 20, a first rain drainer 22, a support member 24, and a second rain drainer.鍔 26.

  The main shaft portion 12 is a long cylindrical member having insulating properties. The sub-shaft portion 14 is a rod-like member that has insulating properties and is narrower and shorter than the main shaft portion 12. The draining rod 16 is a rubber member fixed to the distal end side of the main shaft portion 12 and spreads in the horizontal direction with respect to the main shaft portion 12. The safety limit rod 18 is a rubber member fixed to the base end side of the main shaft portion 12 and spreads in the horizontal direction with respect to the main shaft portion 12. The draining rod 16 is a member that causes water droplets that have flowed down from the front end side of the hot stick body 10 to the main shaft portion 12 to flow in a direction away from the main shaft portion 12. The safety limit rod 18 allows water droplets flowing down from the draining rod 16 in the hot stick body 10 to flow in a direction away from the main shaft portion 12, and a portion that may be gripped in the hot stick body 10 and other portions. It is for clarifying the boundary.

  The connecting member 20 is a string-like member made of an insulating material such as FRP (Fiber Reinforced Plastics). The connecting member 20 is slidably inserted into the main shaft portion 12, and both end portions of the connecting member 20 protrude from both end portions of the main shaft portion 12.

  The first rain gutter 22 is a rubber conical member that is fixed to the distal end portion of the connecting member 20 and covers the distal end portion of the main shaft portion 12. Further, the first rain gutter 22 is formed with a conical portion 22b having a hole portion 22a into which the connecting member 20 is inserted in the center and having an inclined surface that is inclined so as to spread toward the tip end side of the main shaft portion 12, and a conical portion. The cylindrical portion 22c extends from the end of the inclined surface 22b toward the distal end side of the main shaft portion 12. The inner diameter of the cylindrical portion 22c is set to a size that allows the distal end portion of the main shaft portion 12 to be loosely fitted.

  The support member 24 is a member that supports the proximal end portion of the auxiliary shaft portion 14 and is fixed to the main shaft portion 12. The sub-shaft portion 14 is arranged in parallel with the main shaft portion 12 spaced apart by the support member 24. Further, the distal end portion of the auxiliary shaft portion 14 is adjacent to the distal end portion of the connecting member 20.

  The second rain gutter 26 is a conical rubber member that is fixed to the fixed side operation portion 32 a side of the fixed blade portion 32 of the cutting portion 30 to be described later and covers the distal end portion of the auxiliary shaft portion 14.

  The cutting part 30 is a scissors-type tool including a fixed blade part 32, a movable blade part 34, a fixed shaft 36, a fixed grip piece 38, and a movable grip piece 40. The fixed blade portion 32 has a hole portion (not shown) into which the fixed shaft 36 is inserted at the center portion, and a fixed side operation portion 32a extending from the portion of the hole portion (not shown) to the base end side. And a fixed-side tip 32b extending from the hole (not shown) to the tip.

  The movable blade portion 34 is formed with a hole portion (not shown) into which the fixed shaft 36 is inserted in the central portion, and a movable side operation portion 34a extending from the portion of the hole portion (not shown) to the proximal end side. And a movable side tip 34b extending from the hole (not shown) to the tip side. The movable blade portion 34 is formed in an L shape by the movable side operation portion 34a and the movable side tip portion 34b, and a hole (not shown) is formed in the base portion of the L shape.

  Then, the fixed blade portion 32 and the movable blade portion 34 are overlapped so that the hole portion (not shown) of the fixed blade portion 32 and the hole portion (not shown) of the movable blade portion 34 coincide with each other, and two holes are formed. By inserting the fixed shaft 36 into a portion (not shown) and fastening both sides of the fixed shaft 36, the fixed blade portion 32 and the movable blade portion 34 are rotatably connected around the fixed shaft 36. Is done. Further, edge portions that intersect each other at the fixed side tip portion 32b of the fixed blade portion 32 and the movable side tip portion 34b of the movable blade portion 34 are formed sharply. A branch is cut | disconnected by pushing the movable blade part 34 in a branch on both sides of this edge part.

  The fixed grip piece 38 is a member that is fixed to the surface of the fixed blade portion 32 opposite to the surface facing the movable blade portion 34 and protrudes in the thickness direction of the fixed blade portion 32. The movable gripping piece 40 is a member that is fixed to a surface of the fixed blade portion 32 facing the movable blade portion 34 and protrudes in the thickness direction of the movable blade portion 34. For this reason, the fixed grip piece 38 and the movable grip piece 40 face each other in the rotation direction. Specifically, the fixed-side tip 32b of the fixed blade 32 and the movable-side tip 34b of the movable blade 34 are entirely overlapped, that is, the fixed grip piece 38 and the movable grip piece 40 are closed. In the state, the fixed grip piece 38 and the movable grip piece 40 are opposed to each other with a predetermined interval.

  The cutting unit 30 configured in this way has the end of the fixed side operation part 32a of the fixed blade part 32 fixed to the tip of the auxiliary shaft part 14, and is connected to the end of the movable side operation part 34a of the movable blade part 34. By fixing the tip of the member 20, the member 20 is fixed to the hot stick body 10.

  The lever unit 50 includes a fixed lever 52 that is fixed to the base end of the hot stick main body 10, a movable lever 54 that is rotatably fixed to the fixed lever 52, and an end of the connecting member 20 is fixed to the center. It has. For this reason, when the operator rotates the movable lever 54 and the connecting member 20 slides in the hot stick main body 10, the movable side operation portion 34a is pulled and the movable blade portion 34 rotates. . Here, the length of the cylindrical portion 22 c of the first rain gutter 22 is set to be equal to or greater than the maximum slide amount of the connecting member 20. Here, since the first rain gutter 22 is fixed to the connecting member 20, the first rain gutter 22 slides together with the sliding movement of the connecting member 20. 22 is maintained in the state covered by 22.

  Although not shown, the cutting portion 30 is provided with a biasing member that biases the fixed blade portion 32 and the movable blade portion 34 in a direction in which they are separated from each other. For this reason, in the normal state, as shown in FIG. 3 (b), the movable blade portion 34 is opened with respect to the fixed blade portion 32 in the cutting portion 30, and in FIG. The state is away from the fixed lever 52.

  Then, the operator grasps the distal end portion of the fixed lever 52 and the distal end portion of the movable lever 54 at the same time, and pulls the movable lever 54 toward the fixed lever 52, thereby fixing the fixed blade portion 32 at the cutting portion 30. The movable side tip portion 34b of the movable blade portion 34 rotates toward the side tip portion 32b, and the movable blade portion 34 is closed with respect to the fixed blade portion 32.

  When the tree stick cutting hot stick 1 is stored, the distal end portion of the fixed lever 52 and the distal end portion of the movable lever 54 are inserted into an annular member, held in a state where the movable lever 54 is pulled, and further closed. It is desirable to cover with the cover so that the cut part 30 in the state does not open.

Next, the operation and usage example of the tree branch cutting hot stick 1 will be described.
First, the worker lifts the hot stick body 10 and positions a predetermined portion of the branch to be cut in the tree near the electric wire between the fixed blade portion 32 and the movable blade portion 34. At this time, the fixed grip piece 38 and the movable grip piece 40 are set to face the distal end side of the branch. And when a worker operates lever part 50, cutting part 30 will act and a branch will be cut.

  In addition, the worker maintains the movable lever 54 in a state where the movable lever 54 is pulled toward the fixed lever 52 even after the cutting. Thereby, the root portion of the cut branch is sandwiched between the fixed grip piece 38 and the movable grip piece 40. Then, the operator operates the hot stick body 10 to move the cut branches to the branch loading place while separating the branches from the electric wires.

  Here, when the work or the branch is wet in the rain, water droplets transmitted from the cutting part 30 to the connecting member 20 flow down through the first rain gutter 22. At this time, since the tip end portion of the main shaft portion 12 is maintained in a state covered with the first raindrop 22, it is possible to prevent water droplets from entering the inside from the front end portion of the main shaft portion 12. Further, the water droplets moving from the cutting part 30 to the auxiliary shaft part 14 side flow down through the second rain gutter 26. Thereby, it can prevent that a water drop adheres to the connection part of the sub-shaft part 14 and the fixed blade part 32 by a water drop.

  According to the present embodiment configured as described above, the hot stick main body 10 is configured in two axes, ie, the main shaft portion 12 and the sub shaft portion 14, so that the movable blade portion 34 can be moved from the rotation fulcrum of the cutting portion 30. It is possible to ensure the length of the connecting member 20 to the pivot attachment site. For this reason, it is possible to push the movable blade portion into the branch with a force larger than the force for operating the lever portion 50 by the lever principle, and the cutting operation of the branch is facilitated. Further, when the work or branches in the rain are wet, water droplets transmitted from the cutting unit 30 to the connecting member 20 flow down through the first rain gutter 22. At this time, since the tip end portion of the main shaft portion 12 is maintained in a state covered with the first raindrop 22, it is possible to prevent water droplets from entering the inside from the front end portion of the main shaft portion 12. Thereby, the insulation between the cutting part 30 and the lever part 50 inside the main shaft part 12 is maintained.

  In addition, according to the present embodiment, the branch immediately after being cut by the cutting unit 30 can be held by the fixed holding piece 38 and the movable holding piece 40, and the cut branch is prevented from falling on the electric wire. can do.

  Further, according to the present embodiment, by providing the rubber second rain gutter 26 fixed to the base end portion of the fixed blade portion 32, when the countershaft portion is a cylindrical member, It is possible to prevent water droplets from entering the auxiliary shaft portion.

  Moreover, according to this embodiment, since the connection member 20 consists of FRP, and FRP has insulation and high intensity | strength, while maintaining the insulation between the cutting part in the main shaft part 12 and a lever part, it is. The connecting member 20 can be made thin, and the overall weight can be reduced.

  As mentioned above, although embodiment of this invention was described, this invention is not restricted to embodiment mentioned above. For example, in the embodiment described above, the facing width between the fixed gripping piece 38 and the movable gripping piece 40 is constant, but the facing width may be variable. Accordingly, for example, by narrowing the facing width in the case of a thin branch and widening the facing width in the case of a thick branch, it becomes possible to reliably hold a branch cut according to the thickness of the branch. .

DESCRIPTION OF SYMBOLS 1 Tree stick cutting hot stick 10 Hot stick main body 12 Main shaft part 14 Subshaft part 16 Drainer 18 Safety limit bar 20 Connecting member 22 First rain bar 22a Hole 22b Conical part 22c Cylindrical part 24 Support member 26 Second rain bar ３０ 30 Cutting portion 32 Fixed blade portion 32a Fixed side operation portion 32b Fixed side tip portion 34 Movable blade portion 34a Movable side operation portion 34b Movable side tip portion 36 Fixed shaft 38 Fixed grip piece 40 Movable grip piece 50 Lever portion 52 Fixed lever 54 Movable lever

Claims (4)

A main shaft portion made of a long cylindrical member having insulating properties;
A long shaft having an insulating property, on the side of the main shaft portion, a sub shaft portion arranged in parallel to the main shaft portion,
A lever portion provided at a base end portion of the main shaft portion and operated by a user's operation;
An insulative connecting member provided inside the main shaft portion and slidably moved inside the main shaft portion in conjunction with the operation of the lever portion;
A movable blade portion in which the end portion of the connecting member is fixed to the base end portion and the tip end side is formed in a blade shape, and a base end portion is fixed to the tip end of the countershaft portion and the tip end side is formed in a blade shape. A scissors-type cutting part, which has a fixed blade part, and has a center part of the movable blade part and a center part of the fixed blade part pivotally supported by a shaft member,
A first stick made of rubber fixed to the movable blade part side of the connecting member, and a tree stick cutting hot stick that operates the cutting part by operating the lever part by a user,
The first rain gutter is
A conical portion having an inclined surface that is formed around the hole portion into which the portion protruding from the tip of the main shaft portion in the connecting member is fitted, and is inclined so as to spread toward the tip side of the main shaft portion;
The cylindrical portion extends from the end of the inclined surface of the conical portion, and holds the state where the tip of the main shaft portion is covered when the connecting member is moved by operating the lever portion. Tree stick cutting hot stick. The cutting part is provided on a side surface of the movable blade part and the fixed blade part, and includes a pair of gripping pieces protruding along the thickness directions of the movable blade part and the fixed blade part,
The pair of gripping pieces are opposed to each other in a state where the tip end side of the fixed blade portion and the tip end side of the movable blade portion are overlapped, and grip the object cut by the cutting portion. The tree stick cutting hot stick according to claim 1.   The tree stick cutting hot stick according to claim 1 or 2, further comprising a second rain-cutting rod made of rubber fixed to a base end portion of the fixed blade portion.   The tree stick cutting hot stick according to any one of claims 1 to 3, wherein the connecting member is made of FRP.

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