JP5955898B2 - Vine plant removal tool - Google Patents

Description

  The present invention relates to a tool used for removing vines such as pranks entangled in a branch line obliquely extending from the upper part to the ground in order to support a columnar standing body such as a utility pole.

The utility poles that support the overhead distribution lines are installed in various places, and branch lines that are slanted from the top to the ground are attached from the viewpoint of preventing collapse.
Since the vines such as kazura are entangled and rolled up on the branch line of this utility pole, if left as it is, in the worst case, the vines will reach the charging equipment such as distribution lines, causing a power failure due to ground fault There is a disadvantage of generating. For this reason, in the past, the presence or absence of the vine plant on the power pole branch line was confirmed during regular inspections, and a temporary patrol was conducted to check for the presence or absence of winding up, and the winding up was discovered. Every time I try to remove the rolled up vines.

In such work to remove vines, if the place is low from the ground, hold the sickle-shaped blade directly with your hand, scrape the vines and enter near the branch line, and vines entangled in the branch line Cut and remove plants, and if it is a high place from the ground, attach a sickle-like blade to a universal live-line operation rod and cut and remove it from a remote place, or climb to a utility pole and make a sickle-like The blade is removed by hand.
In addition, in order to remove the vines wound around the power pole branch line with good workability by operating from the ground, the blades of the sickle and the saw should be facing each other at the tip of the frame with the required length. There has also been proposed a cut-off removal tool that is attached to face to face (see Patent Document 1).

Japanese Patent Application Laid-Open No. 6-7006

  However, when cutting a vine with a sickle-shaped blade, it must be shaken, and when cutting a vine with a saw blade, it must be moved up and down or back and forth. Therefore, a great deal of labor was required. In particular, when using a long operating rod, it takes several times more labor than the work of holding a sickle-shaped blade directly. It was difficult to put on and move up and down, and back and forth, and the stability was lowered and dangerous.

  The present invention has been made in view of such circumstances, and when performing a work for removing a vine by using a long operating rod, an operation for greatly moving the operating rod is not necessary, and the same applies in any use state. The main problem is to provide a tool for removing vines that can remove vines with the effort of the above.

To achieve the above object, vine plant removal tool according to the present invention, a head attached to the distal end portion of the operation rod, the head, the side wall portions of the pair of facing each other, and each of the side wall portions Each of the head main body is formed with a connecting portion that connects one end side of the head, and a housing space in which the other end side is opened between the pair of side wall portions, and the side wall portion that forms a pair of the head main body. In conjunction with the operation of a pair of swinging blades swingably attached so as to be close to and away from a member inserted between the side wall portions, and a linear member drawn from the head body And a swinging blade drive mechanism that swings the paired swinging blades so as to be close to each other.

Therefore, the operator holds the operation rod with the head attached, brings the head closer to the branch line around which the vines are wound, and the branch space is opened together with the vines from the paired side walls to accommodate the space between the side walls. If the swinging blades that make a pair are brought close to each other by manipulating (pulling) the linear member, the pair of swinging blades are pressed against the vine plant wound around the branch line, It becomes possible to cut a sex plant.
For this reason, the operator does not need to move the head up and down and cut the vines, and approaches the head of the vine plant removal tool with respect to the branch line in any posture and from which direction. However, as long as the branch line can be inserted into the accommodating space of the head, it is possible to cut the vine plant wrapped around the branch line simply by operating the linear member, and the labor of operating (pulling) the linear member is reduced. It only takes.

The swing blade driving mechanism may include a mechanism that swings the pair of swing blades in a direction of separating from each other when the operation of the linear member is released.
By providing such a mechanism, it becomes possible to move the pair of oscillating blades close to each other by operating the linear member and release the operation so that the paired oscillating blades can be separated from each other. Continuous operations such as cutting vines while gradually shifting the position of the head are possible.

  Here, the swing blade driving mechanism includes a gear group that rotates by pulling the linear member, and rotational power is transmitted through the gear group, and is applied to the swing blade from the inside of the side wall portion. It is good also as a structure which has the eccentric cam which touches.

  The swing blade is swingably provided on a plane including the pair of side wall portions, and one swing blade swings around one end side of the side wall portion as a fulcrum, and the other swing blade May swing around the other end of the side wall as a fulcrum.

  Further, in order to greatly change the distance between the swing blades with a small amount of operation of the linear member, the swing blade is formed in a trapezoidal shape, and the swing blade provided on one side wall portion and the other side wall are formed. The swinging blade provided in the part may be configured such that the upper bottom part and the lower bottom part are attached in opposite directions.

Even if the above head is attached to a long operating rod in advance so as not to be detachable, the operating rod is configured as a common operating rod, and the common operating rod is provided at the lower end of the head body. A connectable mounting adapter may be attached so as to be detachable from the common operation rod.

  As described above, according to the vine plant removing tool according to the present invention, it is attached to each of the pair of side wall portions so as to be swingable so as to approach and separate from the member inserted between the side wall portions. A pair of oscillating blades are provided, and the oscillating blades are oscillated so as to be close to each other by operating (by pulling) the linear members drawn from the head main body, and between the side wall portions (accommodating spaces). ) The swinging blade is pressed against the member to be inserted into (), so if the linear member is operated after inserting the vine plant wound around the branch line into the space between the side walls (accommodating space) together with the branch line, It is possible to cut the wound vine with a swinging blade without moving the head.

Therefore, it is not necessary to cut the vines by moving the tool up and down like before, and the vines can be cut just by operating the linear members. It is possible to remove the vines with less effort, and it is possible to reduce the work effort.
In addition, since there is no need to move the operating rod, stable operation can be performed, and the swinging blade only protrudes between the side walls of the head body, so compared to tools such as a sickle with the blade tip exposed. Disaster risk can be reduced.

FIG. 1 is an external view showing a vine plant removing tool according to the present invention, (a) is a perspective view showing a state before being attached to a branch line, and (b) is a side view. FIG. 2 is a cross-sectional view showing the internal structure of the head of the vine plant removing tool according to the present invention, showing a state before the linear member is pulled. FIG. 3 is a cross-sectional view showing the internal structure of the head of the vine plant removing tool according to the present invention, and shows a state in which the linear member is pulled. FIG. 4 is a diagram showing an operation of removing a vine plant wound around a branch line using the vine plant removal tool according to the present invention. FIG. 5 is a side view showing a modification in which the vine plant removing tool according to the present invention can be attached to and detached from the common operation rod.

  Hereinafter, the vine plant removing tool according to the present invention will be described with reference to the accompanying drawings.

  In FIG. 1, an example of a vine plant removing tool 1 is shown. This vine plant removing tool 1 fixes a head 3 to a tip of a long operation rod 2 formed of an insulating material in a non-detachable manner. Configured.

  The head 3 includes a head main body 7 including a pair of side wall portions 4 and 5 that face each other with a predetermined interval, and a connecting portion 6 that connects one end side of each of the side wall portions 4 and 5. It has rocking blades 8a and 8b provided on the side wall.

  The head body 7 is made of a hard synthetic resin or metal that is an insulating material, and the other end side is opened between the pair of side wall parts 4 and 5, and this open part is formed. An accommodation space 10 into which a branch line or the like can be inserted is formed from 9. The opening portion 9 is formed to have a size that allows a branch line and a vine plant wound around the branch line to be inserted at the same time. In this example, the distal end portion of the other side wall portion 5 that forms the opening portion 9 is formed. And the portion of the one side wall portion 4 facing this are formed to be somewhat narrowed, and the movement of the branch line or the like from the outside to the accommodation space 10 or the movement of the branch line or the like from the accommodation space 10 to the outside is possible. It is formed in a tapered shape so that it can be smoothly performed.

  Each of the side wall portions 4 and 5 extends substantially parallel to the axis of the operation rod 2, and one side wall portion 4 is connected to the operation rod 2 at the end opposite to the coupling portion 6. A portion 4a is formed integrally, and the head body 7 is fixed to the operation rod 2 in a non-detachable manner by inserting the distal end portion of the operation rod 2 into the connection portion 4a and screwing it from the side, for example.

  As shown in FIG. 2, each of the side wall portions 4 and 5 has oscillating blades 8a and 8b that oscillate so as to approach and separate from members inserted between the side wall portions (accommodating space 10). Are attached, and openings 11a and 11b from which the oscillating blades 8a and 8b protrude are formed on the surfaces of the pair of side wall portions 4 and 5 that face each other.

Each of the oscillating blades 8a and 8b is formed in a trapezoidal shape when viewed from the side, is fixed to the support shafts 12a and 12b provided on the center line, and the side walls 4 and 5 are extended in the vicinity of the openings 11a and 11b. It is attached so that the support shafts 12a and 12b face in the direction. In this example, each of the oscillating blades 8a and 8b extends along the support shafts 12a and 12b to about a half portion exposed from the openings 11a and 11b, and at a predetermined angle with respect to the support shafts 12a and 12b. Inclined sharp cutting edges 81a and 81b are formed, and about half of the inner side of the side wall portions 4 and 5 are formed in a tapered shape, and are formed on pressing surfaces 82a and 82b with which an eccentric cam described later contacts. .
The pressing surfaces 82a and 82b may be formed in a cross-sectional arc shape in order to ensure smooth sliding contact with the eccentric cam.

  The swing blade 8a provided on one side wall 4 is arranged so that the open portion 9 side of the accommodation space 10 is the upper bottom and the connecting portion 6 side is the lower bottom, and the lower end portion (accommodation of the support shaft 12a). The side wall portions 4 and 5 that are rotatably supported by the head body 7 with the opening portion 9a) of the space 10 as a rotation fulcrum and that form a pair around the lower end portion 12a-1 of the support shaft 12a. It is attached so that it can swing on a plane including it. Further, the swinging blade 82b provided on the other side wall portion 5 is arranged so that the connecting portion 6 side is the upper bottom and the open portion 9 side of the accommodation space 10 is the lower bottom, and the upper end portion of the support shaft 12b. (End portion on the connecting portion 6 side) 12b-1 is a plane that includes the side wall portions 4 and 5 that are rotatably supported by the head body 7 with the rotation fulcrum as a rotation fulcrum. The top is swingably mounted.

  Also, a spring 13a that constantly urges the swing blade 8a in a direction to return the swing blade 8a into the side wall portion is attached to the upper end portion 12a-2 of the support shaft 12a of the one swing blade 8a. A spring 13b is attached to the lower end portion 12b-2 of the support shaft 12b of the 8b so as to constantly urge the swing blade 8b in the direction of returning it into the side wall portion.

  In each side wall 4, 5, a first shaft 15 a, 15 b that is vertically erected inward from the inner surface of the outermost wall parallel to the axis of the operation rod 2 is rotatably fixed. 1 between the bevel gears 16a and 16b, the first bevel gears 16a and 16b in the side wall and the swinging blades 8a and 8b, and the extending direction of the side walls 4 and 5 (of the operation rod 2). Second bevel gears 18a and 18b fixedly mounted on shafts 17a and 17b rotatably supported so as to be substantially parallel to a direction along the axis) and meshing with the first bevel gears 16a and 16b; The second bevel gears 18a and 18b are fixed to the shafts 17a and 17b to which the second bevel gears 18a and 18b are fixed, and are provided with eccentric cams 19a and 19b that come into contact with the pressing surfaces 82a and 82b of the swinging blades 8a and 8b. Yes.

The pressing surfaces of the oscillating blades 8a and 8b are always in contact with the cam surfaces formed on the outer circumferences of the eccentric cams 19a and 19b by the spring force of the springs 13a and 13b, and the eccentric cams 19a and 19b. Is rotated about the shafts 17a and 17b, the distance between the shafts 17a and 17b at the portion where the pressing surfaces 82a and 82b abut on the eccentric cams 19a and 19b is changed, and the swinging blades 8a and 8b are moved to the support shafts 12a and 12b. The rotating fulcrum 12b (the lower end 12a-1 of the support shaft 12a and the upper end 12b-1 of the support shaft 12b) is rotated against the spring force of the springs 13a and 13b.
The gear group (first bevel gears 16a and 16b, second bevel gears 18a and 18b) and eccentric cams 19a and 19b housed in the side wall portion and the eccentric cams 19a and 19b are interlocked with the operation of the linear member 20 described below. A swinging blade drive mechanism is configured to swing the paired swinging blades 8a and 8b so as to be close to each other and to release the operation so that the paired swinging blades are moved away from each other. .

  The linear member 20 is composed of a rope, a wire, and the like, one end of which is fixed to a bobbin 21b that rotates integrally with a first bevel gear 16b provided on the other side wall portion 5, and is incorporated in the bobbin 21b. The coil spring is always biased in the direction of winding. The linear member 20 has the outside of the plurality of guide pins 22 disposed along the inner wall of the head body 7 so as to sway from the bobbin 21b near the inner surface of the connecting portion 6 of the head body 7, and thereafter After being wound around a bobbin 21a that is integrated with a first bevel gear 16a provided on one side wall part 4, an outlet 23 formed between one side wall part 4 of the head body 7 and the connection part 4a. Is pulled out along the operation rod 2.

  Therefore, when the linear member 20 pulled out from the outlet 23 is pulled, the first bevel gears 16a and 16b around which the linear member 20 is wound rotate, and the second bevel gears 18a and 18g meshing with the first bevel gears 16a and 16b are rotated. 18b rotates, and eccentric cams 19a and 19b fixed to the shafts 17a and 17b of the second bevel gears 18a and 18b rotate. As shown in FIG. 3, the oscillating blades 8a and 8b and the eccentric cams are rotated. The abutting portions with 19a and 19b move away from the shafts 17a and 17b, and the swinging blades 8a and 8b rotate toward the accommodation space 10 against the spring force of the springs 13a and 13b, and the interval between the swinging blades ( (Distance) is narrowed (shortened).

  In the above configuration, as shown in FIG. 4, in order to remove the vine plant 101 wound around the branch line 100, an easy-to-operate portion is secured in the vicinity of the branch line 100 around which the vine plant 101 is wound. Holding the control rod by hand, approach the part of the vine plant that is wrapped around the branch line 100 and wants to cut it, and connect the branch line around which the vine plant is wound between the side walls of the head 3 paired with the vine plant ( Insert into the accommodation space 10) from the opening 9. In this state, if the linear member 20 is pulled forward without moving the head 3, the pair of swinging blades 8a and 8b rotate so as to sandwich the branch line 100 and the vine plant 101 (see FIG. 4). ), The pair of swinging blades 8 a and 8 b are pressed against the vine plant 101 wound around the branch line 100 to cut the vine plant 101.

  Therefore, the operator does not need to move the head 3 up and down and back and forth, and if the linear member 20 is pulled with the head 3 fixed to a desired branch line position, the vine plant 101 wrapped around the line of sight is cut. Therefore, it is possible to reduce work labor. Moreover, since this operation is the same regardless of the state of use of the vine plant removing tool, it is possible to remove the vine plant with the same effort regardless of the state of use.

  In particular, in the above-described configuration, the oscillating blades are formed in a trapezoidal shape when viewed from the side, so that the interval (distance) between the oscillating blades can be greatly changed with the rotation of the oscillating blades. Thus, the length that the linear member is pulled can be shortened. In addition, by making the swinging blade trapezoidal, the eccentric cam can be brought into line contact or surface contact with the pressing surface of the swinging blade when cutting a vine plant that requires the most force ( 4), the operation force for the linear member can be securely transmitted to the oscillating blade, and it is possible to prevent the possibility that the drive mechanism (eccentric cam or the like) is damaged due to an excessive force acting locally.

  Furthermore, in the above-described configuration, there is no need to move the operating rod when cutting the vine, so that stable operation can be performed, and the swinging blade only protrudes between the side walls of the head body. The risk of disaster can be greatly reduced compared to a tool such as a sickle with exposed blade edges.

FIG. 5 shows another configuration example of the vine plant removing tool.
In the above configuration example, the head 3 is fixed to the operation rod 2 so as not to be detachable. However, the head 3 may be detachably attached to the common operation rod 30.

That is, a mounting adapter 40 that can be attached to the distal end portion of the common operation rod 30 is provided at the proximal end portion of one side wall portion 4 of the head body 7, and the tool attachment portion 31 at the distal end portion of the common operation rod 30 is twist-locked. You may do it.
The mounting adapter 40 has a well-known configuration, and is formed in a hollow cylindrical shape having an open lower end. The mounting adapter 40 has a cylindrical side surface on the tool mounting portion 31 at the tip of the common operation rod 30. A substantially T-shaped guide groove 41 for introducing a pair of locking pins 32 projecting in the radial direction is formed, and the locking pin 32 is twist-locked at the end of the guide groove 41. A locking recess 41a is formed.
Since the other components are the same as those in the above configuration example, the same portions are denoted by the same reference numerals and description thereof is omitted.

  Therefore, according to the vine plant removing tool 1 having such a mounting adapter 40, it is possible to carry only the head 3 and mount it on the tip of the common operation rod 30 as required.

DESCRIPTION OF SYMBOLS 1 Vine plant removal tool 2 Operation rod 4,5 Side wall part 6 Connection part 7 Head main body 8a, 8b Oscillating blade 20 Linear member 13a, 13b Spring 16a, 16b 1st bevel gear 18a, 18b 2nd bevel gear 19a, 19b Eccentric cam 100 Branch line 101 Vine plant

Claims (6)

It has a head attached to the tip of the operation rod,
The head,
A head including a pair of side wall portions that face each other and a connecting portion that connects one end side of each of the side wall portions, and an accommodation space in which the other end side is opened between the pair of side wall portions. The body,
A pair of oscillating blades provided on each of the pair of side wall portions of the head main body and oscillatingly attached so as to be close to and away from a member inserted between the side wall portions;
An oscillating blade drive mechanism that oscillates the pair of oscillating blades in close proximity to each other in conjunction with an operation of a linear member drawn from the head body;
Vine plant removal tool characterized by comprising.   The vine according to claim 1, wherein the oscillating blade drive mechanism further includes a mechanism that oscillates the pair of oscillating blades in a direction of separating from each other when the operation of the linear member is released. Sex plant removal tool.   The oscillating blade driving mechanism includes a gear group that rotates by pulling the linear member, an eccentric cam that receives rotational power through the gear group and contacts the oscillating blade from the inside of the side wall portion, and The vine plant removing tool according to claim 1 or 2, characterized by comprising:   The swing blade is swingably provided on a plane including the pair of side wall portions, one swing blade swings around one end side of the side wall portion, and the other swing blade is The vine plant removing tool according to any one of claims 1 to 3, wherein the vine plant swings with the other end side of the side wall portion as a fulcrum.   The oscillating blade is formed in a trapezoidal shape, and the oscillating blade provided on one side wall portion and the oscillating blade provided on the other side wall portion have an upper bottom portion and a lower bottom portion attached in opposite directions. The vine plant removing tool according to any one of claims 1 to 4, wherein 6. The mounting rod according to claim 1, wherein the operating rod is a common operating rod, and a mounting adapter connectable to the common operating rod is attached to a lower end portion of the head body. The vine plant removal tool as described.

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