JP2019050742A - Pulling rope attachment appliance - Google Patents

Abstract

To provide a pulling rope attachment appliance, which can be reduced in weight, which can be compacted to an axis line of a column member when it is displaced in a vertical direction, and which can balance itself in development time.SOLUTION: An arm member 10 and an arm member 20 of a pulling rope attachment appliance 1 are rotatably attached to a pedestal 2, and when a filamentous member 40 extended to the arm member 20 in a state in which the filamentous member is at a side of the pedestal 2 is pulled, the arm members 10, 20 can be deformed so that tip ends thereof come close to each other, an adhesive member 6 provided on a tip end of the filamentous member 40 when the tip ends come close to each other, adheres to an adhesive member 5 fixed to the tip end of the arm member 10, then the filamentous member 40 is hooked in an U-shape to a tree which is a deforestation object, then, the pulling rope attachment appliance 1 is lowered, then the pulling rope is attached to an end of the filamentous member 40 coming, then the pulling rope is raised.SELECTED DRAWING: Figure 9

Description

  The present invention relates to an instrument for assisting adjustment of a direction in which a tree falls by pulling a tree with a rope by attaching a pulling rope to the tree to be felled when cutting down a tree to be felled.

  In order to maintain and maintain the transmission line, there are cases where trees near the transmission line, such as under the transmission line, are cut down, but depending on the direction in which the tree is cut down, there is a risk of unforeseen harm to workers. . For this reason, for example, as shown in FIG. 12 of Patent Document 1, when a tree to be felled is cut down, a pulling rope is attached to the tree to be felled, and the tree is pulled by the pulling rope to adjust the direction in which the tree falls. To help.

  And as a pull rope attachment device for attaching a pull rope above a tree, for example, as shown in Patent Document 1 and Patent Document 2, a tip from a handle portion is provided so that remote operation is possible from below a tree. Equipment for attaching a pulling rope using an operating rod having a large axial dimension up to now has been developed.

  The pull rope attachment device shown in Patent Document 1 has two curved movable arm members whose distal ends can be close to each other, and has inner peripheries of the movable arm members when the distal ends of the two movable arm members are closed. It is possible to surround the entire circumference of the trunk of the tree with a surface. The pulling ropes are temporarily fixed to these movable arm members, and when the leading ends of the movable arm members are closed, the leading ends of the pulling ropes are connected to each other. In this state, the movable arm member comes off. Thereby, after enclosing the trunk of the tree with the two movable arm members, an operation of applying a predetermined force or the like is performed, so that the annular pulling rope is attached around the trunk of the tree.

  In addition, the pull rope attachment device shown in Patent Document 2 has arcuate movable arm members attached to both ends of the arcuate body. When the tips of these movable arm members are closed, it is possible to surround the entire circumference of the trunk of the tree with the inner peripheral surfaces of both movable arm members. A pull rope is temporarily fixed to the movable arm member, and a pull rope is attached to each of the connecting tools at each end of the movable arm member. After the tip of the movable arm member is closed and the connectors are connected to each other, an annular pulling rope is formed by removing the connector from the movable arm member. Thus, after the tree trunk is surrounded by the two movable arm members, the connecting rope is removed from the movable arm member, so that the annular pulling rope is attached around the tree trunk.

JP-A-9-28214 Japanese Unexamined Patent Publication No. 2009-30

  However, the pull rope attachment device of the type that surrounds the entire circumference of the tree with arm members as shown in Patent Document 1 and Patent Document 2 has a weight because of its complicated structure, and a relatively heavy pull rope is Since the pulling rope mounting device is first mounted on the pulling rope mounting device from the time when the pulling rope mounting device is lifted above the tree, if the operating rod has a long axial dimension, the operating rod is bent.

  In addition, since the pull rope attachment device shown in Patent Document 1 or Patent Document 2 does not have a center of gravity when being lifted above a tree, from this point, too, if the axial dimension of the operation rod is long, There is a problem that the rod is bent. Furthermore, the pull rope attachment device shown in Patent Document 1 or Patent Document 2 is difficult to be lowered smoothly, for example, when a branch is caught when it is lowered from above the tree to the ground side or the like.

  Due to these problems, with the pull rope attachment device shown in Patent Document 1 or Patent Document 2, it is difficult for the operator to operate the pull rope attachment device arranged at the tip of the operation rod. .

  Therefore, the main object of the present invention is to provide a pull rope attachment device that can be gathered when it is reduced in weight and displaced vertically, and has a center of gravity even in a deployed state.

  In order to achieve the above object, a pull rope attachment device according to the present invention includes a pedestal connected to an operation rod, and a plurality of rod-like arm members attached to the pedestal, and the plurality of rod-like arms. The member is connected to the pedestal via a connection mechanism so that the member can be returned to the position facing upward after radially expanding from the position facing upward to the position facing the side of the pedestal. One of the rod-shaped arm members of the first arm member extends halfway while the first thread-like member is hooked along the outside in the longitudinal direction of the one arm member. The first adhesive member is detachably disposed at the leading end of the pulled-out portion, and the first thread-like member is pulled, so that the leading end of the one arm member is abutted. Said first contacted The one arm member is deformed by being pushed by the detaching member, and another arm member of the plurality of rod-shaped arm members is connected to the first detachable member at the tip. A second detachable member that can be bonded and detached is fixed, and the second thread-like member is hooked along the outer side in the longitudinal direction of the other arm member. When the second thread-like member is pulled by being fixed to the member, the other arm member is deformed, and the one arm member and the other arm member are deformed to form a tip. Are close to each other, whereby the first adhesive member adheres to the second adhesive member (claim 1). The pedestal is directly or indirectly connected to the operation rod. The arm members are arranged so as to expand substantially symmetrically with respect to the axis of the operating rod or the following support member. The number of arm members is two or three, for example. However, the number of arm members may be more as long as it can be substantially symmetrical with respect to the axis of the operation rod or the support member described below. The first adhesive member and the second adhesive member are, for example, permanent magnets. The first thread-like member and the second thread-like member are thinner and lighter than the pull rope. In deforming the arm member, one or a plurality of coupling mechanisms may be used, and the number of coupling mechanisms may be zero as long as the whole can be formed in an arc shape.

  As a result, the pull rope attachment device according to the present invention is arranged at the tip of the operation rod held by the worker, and is firstly gathered in a state where a plurality of rod-shaped arm members are gathered in a position facing upward, When a predetermined height is reached, the first connecting member is expanded radially and the tips of one arm member and the other arm member are brought close to each other, and the first connecting member is moved to the second position. Adhere to the connecting member. Next, while maintaining the bonding state between the bonding members, while pulling out the first thread-like member or making it to a certain length, the pull rope attaching device is lowered to the ground side. As a result, the first filamentous member extends in a U-shape surrounding a part of the tree to be felled, and both ends of the first filamentous member extend to a place where a worker is present (for example, the ground or a work vehicle). Pulled out. Therefore, the connection between the first connecting member and the second connecting member is released, the pulling rope is connected to the first thread-like member, and the side opposite to the side where the pulling rope of the first thread-like member is connected is connected. The pulling rope can be pulled down and lifted up so that the pulling rope is hung in a substantially U shape around the tree to be cut.

  In addition, since the arm member is radially developed around the pedestal to the side of the pedestal, it can be arranged so as to be substantially symmetrical with respect to the axis of the operating rod, and the center of gravity can be taken. Since it is not attached, it is possible to prevent the operation rod from being bent even if it is attached to the tip of the operation rod having a long axial direction.

The plurality of rod-like arm members of the pull rope attaching device according to the present invention are connected via a support member and a support thread-like member that are erected upward from the pedestal,
When the plurality of rod-shaped arm members are deployed to positions facing the sides of the pedestal, the support member is in a tensioned state and is lower than the pedestal at the tips of the plurality of rod-shaped arm members. And when the plurality of rod-shaped arm members are in positions facing upward, the engaging members provided on the first thread-shaped member, The support member is engaged, and the engagement is released by pulling the first thread-like member (Claim 2).

  As a result, when lifting the pull rope attachment tool, it is possible to hold the aggregated state of the plurality of arm members by engaging the support member with the engagement tool, and when the desired height is reached. The engagement of the engagement tool with the support member can be released only by pulling the first thread-like member. After the engagement is released, the support thread-like member connected to the support member restricts the tip of the arm member from being lower than the side of the pedestal. It will be in the state which developed radially in the form of extending almost horizontally towards.

  The plurality of rod-like arm members of the pull rope attachment device according to the present invention have a pedestal side arm constituent member and a distal end side arm constituent member, and the pedestal side arm constituent member and the distal end side arm constituent member are: The distal end side arm component members are coupled via a coupling mechanism so that the distal ends of the distal end side arm component members can be bent in directions close to each other, and are further urged to bias the distal end side arm component member in a direction opposite to the bending direction. A biasing mechanism is constructed between the arm constituent members (claim 3).

  As a result, when each thread-like member is pulled, the tip side arm constituent member of one arm member or the tip side arm constituent member of the other arm member bends, and the tip of one arm member and the tip of the other arm member Can be brought close to each other. On the other hand, when the tension of each thread-like member is released, the tip side arm constituent member of one arm member and the tip side arm constituent member of the other arm member are opened by the biasing force of the biasing mechanism. Go back.

  In the pull rope attachment device according to the present invention, the first thread-like member and the second thread-like member are drawn downward through a through-hole of a tubular member provided in the pedestal, and After the thread-like member is pulled out from the through-hole of the tubular member, it is attached to a stopper larger than the through-hole of the tubular member, and the first thread-like member has a through-hole provided in the stopper. And a pushing member larger than the through hole of the stopper is provided at a predetermined position. After the pushing member comes into contact with the peripheral edge of the through hole of the stopper, the first thread-like member is pulled. Thus, the second thread-like member is also pulled (claim 4).

  As a result, it is possible to deform both the one arm member and the other arm member in the direction in which the tips are close to each other only by pulling the first thread-like member, and the operation of the pull rope attachment tool can be performed. It can be simple.

  As described above, according to the pull rope attachment device according to the present invention, when the pull rope attachment device is lifted by being attached to the tip of the operation rod, the plurality of rod-shaped arm members are aggregated in a state of facing upward. When the pull rope attachment device is lowered with the first thread-like member hooked on the tree, the first thread-like member and the second thread-like member are pulled. By doing so, a plurality of rod-shaped arm members can be gathered together in a state of facing upward. As a result, it is possible to prevent the arm member from being inadvertently caught on a tree branch or the like when lifting or lowering the pull rope attachment tool.

  In addition, when lifting the pull rope attachment device, the pull rope attachment device is not equipped with a pull rope, and a lighter thread-like member than the pull rope is attached. It is possible to reduce the weight. Further, the plurality of arm members are aggregated by facing upward, and when deployed, they are deployed radially at positions facing the side of the pedestal. For this reason, it becomes possible to take the center of gravity of the pull rope attachment tool as the center point of the axis of the operation rod or the support member. For these reasons, even if the axial dimension of the operating rod is long, it is possible to prevent the operating rod having the pull rope attachment device attached to the tip from bending.

It is explanatory drawing which shows the whole instrument for pulling rope attachment from the side by which the thread-like member is arrange | positioned. It is explanatory drawing which shows the whole instrument for pulling rope attachment from the opposite side to the side by which the thread-like member is arrange | positioned. It is explanatory drawing which shows the state which looked at the structure of the upper part of the instrument for pulling rope attachment from the side. (A) is explanatory drawing which shows the state which looked at the structure of the middle part of the instrument for pulling rope attachment from the side, (b) and (c) show that an arm member can be bent. It is explanatory drawing. (A) is explanatory drawing which shows the state which looked at the structure of the lower part of the instrument for pulling rope attachment from the side, (b) is the II sectional view taken on the line of Fig.5 (a). (A) is explanatory drawing which shows the whole pull rope attachment instrument of the state which gathered and fixed the arm member and the supporting member with the engagement tool, (b) is the enlarged view centering on the engagement tool. And it is explanatory drawing which shows the state seen from the side. It is explanatory drawing which shows the whole instrument for a pulling rope attachment of the state which the arm member expanded to the horizontal direction and radially. It is explanatory drawing which shows the whole pull rope attachment instrument of the state bent in the direction which the front-end | tip part of an arm member adjoins mutually. It is explanatory drawing which shows the state which pulled the instrument for pulling rope attachment, having hooked the 2nd thread-like member on the tree of logging object.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  In FIG. 1 to FIG. 9, an example of a pull rope attachment device 1 according to the present invention is shown. For example, when the tree to be felled is cut down, the pull rope attachment device 1 is used to attach a pull rope to the trunk of the tree to be felled and to pull the tree with the rope to assist adjustment in the direction in which the tree falls. It is used by being attached to the tip of an operating rod (not shown).

  In this embodiment, the pull rope attaching device 1 includes a pedestal 2, two arm members 10 and 20 rotatably attached to the pedestal 2, and one support member 80 provided on the upper surface of the pedestal 2. And an operating rod connecting portion 90 provided on the lower surface of the base 2. The operating rod connecting portion 90 is for connecting with an operating rod (not shown).

  The pedestal 2 is a plate-shaped member having a thickness for attaching the coupling mechanisms 3 and 3, the cylindrical portion 8 and the operation rod coupling portion 90 described below, and ensuring strength. In this embodiment, the pedestal 2 The shape seen from the upper surface or the lower surface is a triangle so that the inner angle with the arm member 20 is a desired angle (for example, about 45 degrees). The upper surface and the bottom surface of the pedestal 2 have a sufficient area for providing the support member 80 and the operation rod connecting portion 90 at desired positions such as the center of the pedestal 2. For example, when three arm members are attached to the pedestal 2, the shape viewed from the upper surface or the lower surface may be a trapezoidal shape or the like.

  In this embodiment, the arm member 10 is an L-shaped member composed of a straight bar-shaped connecting mechanism mounting portion 101 and a straight bar-shaped arm main body 102, and the connecting mechanism mounting portion 101 is provided on the side surface of the base 2. By being attached to a connecting mechanism 3 such as a hinge, the connecting mechanism 3 is rotatable about the rotation center. However, although not shown, the entire shape of the arm member 10 may be a straight bar, and the end thereof may be rotatably attached to the coupling mechanism 3.

  In this embodiment, the arm main body 102 includes a pedestal side arm constituent member 102a, a distal end side arm constituent member 102b, and a connecting mechanism 4 such as a hinge for connecting the arm constituent members 102a and 102b. ing. The adhesive member 5 is fixed to the distal end of the distal arm constituent member 102b. In this embodiment, the adhesive member 5 is formed by laminating a plurality of plate-like magnets in the axial direction of the distal arm constituent member 102b. It is configured.

  When the arm members 10 and 20 extend sideways, the coupling mechanism 4 expands radially so that the inner angle between the members 10 and 20 becomes a predetermined angle (for example, about 45 degrees). The structural member 102b is connected to the arm structural members 102a and 102b so as to bend toward the arm member 20 side.

  And the urging mechanism 7 is constructed between the base side arm structural member 102a and the front end side arm structural member 102b. In this embodiment, the urging mechanism 7 is a tension coil spring, and one end is fixed to a position close to the end on the distal end side arm constituent member 102b in the pedestal side arm constituent member 102a, and the other end is configured on the distal end side arm structure. The member 102b is fixed at a position opened at a predetermined distance from the end on the pedestal side arm constituent member 102a (at least far from the fixing position on the pedestal side arm constituent member 102a). The fixing position of the urging mechanism 7 to the arm constituent members 102a and 102b intersects the axial direction of the coupling mechanism 4 and is on the inner side when the distal end side arm constituent member 102b is bent. In this embodiment, the urging mechanism 7 is located on the side of the axis of the arm components 102a and 102b even when the distal arm component 102b is on the axis of the pedestal arm component 102a (initial state). It is gently bent in an arc shape. For this reason, the arm member 10 is restored to return to the original state (open state) if the distal end side arm constituent member 101a is bent with respect to the pedestal side arm constituent member 101a by the biasing force of the biasing mechanism 7. Power is working.

  Furthermore, the arm member 10 includes a bending means for further bending the distal end side arm constituting member 102b. The bending means includes a thread-like member 30 that is lighter than a pulling rope that directly pulls a tree, and a plurality of bending means for pulling the thread-like member 30 along the longitudinal direction of the arm body 102 while pulling it along the arm body 102 (this implementation). 4) guide portions 31 in the form.

  The guide portion 31 is fixed to the arm main body 102, and a ring through which the thread-like member 30 passes is a main component, and each guide portion 31 is arm member 20 when the arm main body 102 is bent by the connecting mechanism 4. It is arrange | positioned in the site | part used as the inner side which opposes. At least one of the guide portions 31 is disposed on the distal end side arm constituting member 102b, and one end of the thread-like member 30 is fixed to the guide portion 31 which is the most distal end side. After passing through the rings of all the other guide portions 31, the thread-like member 30 is inserted through the tubular portion 8 that opens upward and downward from between the coupling mechanisms 3 and 3 of the base 2, and below the tubular portion 8. The other end is fixed to the sideways cylindrical stopper 32 that is positioned.

  With such a mechanism of the bending means, when the stopper 32 is pulled, the thread-like member 30 fixed to the stopper 32 is also pulled, and the distal-side arm constituent member 102b resists the biasing force of the biasing mechanism 7. It bends toward the arm member 200 side. When the tension of the thread-like member 30 is released, the distal end side arm constituent member 102b is brought into the original state (opened state) by the biasing force of the biasing mechanism 7.

  In this embodiment, the arm member 20 is basically composed of a connection mechanism mounting portion 201 and an arm main body 202. The arm main body 202 is connected to a base side arm constituent member 202a, a distal end side arm constituent member 202b, a hinge, and the like. The mechanism 4 is configured. Since the arm member 20 is paired with the arm member 10, the structure and function of the connecting mechanism mounting portion 201, the arm main body 202, and the connecting mechanism 4 of the arm member 20 are the same as the connecting mechanism mounting portion 101 of the arm member 10, the arm There are similar points in the structure and function of the main body 102 and the coupling mechanism 4. For this reason, as for the structure and function similar to the arm member 10 of the arm member 20, the description is abbreviate | omitted in principle and a different structure and function are demonstrated below.

  At least the distal arm component 202b of the arm main body 202 has a cavity 21 that extends along the axial direction of the distal arm component 202b and is open at the distal end. The adhesive member 6 is composed of magnet laminates 62 and 63 in which a plurality of plate-like magnets are laminated in the axial direction of the base 61 on both sides of the columnar base 61. And the number of magnets laminated | stacked by the magnet laminated body 62 and a magnet laminated body is varied, and the balance is worsened. The magnetic poles of the magnets 62 and 63 on the outer side in the stacking direction are adjusted so that they can be bonded to the magnet on the outer side of the bonding member 5 in the stacking direction. In this embodiment, the number of magnets stacked in the magnet stack 62 is six, and the number of magnets stacked in the magnet stack 63 is two. With such a configuration, it is possible to easily adhere the tip of the magnet stack 63 of the adhesive member 6 in the magnet stacking direction to the tip of the adhesive member 5 in the magnet stacking direction. The adhesive member 6 is not fixed to the distal end side arm constituent member 202b, and is attached to the thread-like member 40 described below.

  The arm member 20 includes a thread-like member 40 that is lighter than the pulling rope and a plurality of (four in this embodiment) guide portions 41 as bending means for bending the distal-end-side arm component member 202b. The upper part of the arm constituent member 202b and the adhesive member 6 also constitute part of the bending means. When the guide portion 41 is in the standing state so that the guide portion 31 and the guide portion 41 do not interfere with each other when the arm member 10 and the arm member 20 are standing upward. In addition, the arm members 10 and 20 may be arranged so as to be displaced downward in the axial direction with respect to the guide portion 31. In this embodiment, the guide portion 31 of the distal end side arm component member 102b and the guide portion 41 of the distal end side arm component member 202b are arranged so that the guide portion 41 is on the distal end side.

  In such a configuration, the thread-like member 40 having the adhesive member 6 attached to the distal end side enters the cavity 42 of the distal end side arm constituent member 202b from the opening at the distal end of the distal end side arm constituent member 202b and extends in the axial direction thereof. After proceeding in the cavity 42 along, it exits from the hole of the cavity 42 opened to the same side as the guide part 41 of the distal end side arm constituting member 202b. Then, after the thread-like member 40 that has come out passes through the rings of all the guide portions 41, the tubular portion 8 that is opened up and down from between the coupling mechanisms 3 and 3 of the base 2 is inserted into the tubular portion 8. Further, it also passes through a pair of through holes 32a and 32b formed on the side surface of the horizontally-turned cylindrical stopper 32 positioned below, and finally reaches the drawing / winding member 44 of the thread-like member 40.

  A push member 43 is provided at a predetermined position of the thread-like member 40. The pressing member 43 is, for example, a sphere having an outer diameter that is larger than the inner diameters of the through holes 32 a and 32 b of the stopper 32 and smaller than the inner diameters of the cylindrical portion 8 and the guide portion 41.

  By adopting such a bending means mechanism, when the thread-like member 40 is pulled, the adhesive member 6 hits the tip of the tip-side arm constituent member 202b and pushes the tip-side arm constituent member 202b and then the arm main body 202, and at the same time the thread-like member 40 itself. By pulling, the distal end side arm component member 202b bends toward the arm member 10 in a manner that resists the biasing force of the biasing mechanism 7.

  When the thread-like member 40 continues to be pulled, the pushing member 43 of the thread-like member 40 hits the opening end of the through hole 32a of the stopper 32, and the stopper 32 and thus the thread-like member 30 is also pulled. That is, both the arm members 10 and 20 can be bent by the operation of pulling the thread-like member 40.

  Further, as a means for supporting the state in which the arm main bodies 102 and 202 of the arm members 10 and 20 spread substantially horizontally to the sides of the pedestal, a support member 80 provided on the pedestal 2 and the arm members 10 and 20 are provided. Supporting thread-like members 81 and 82 for connecting the pedestal side arm constituent members 102a and 202a are provided.

  The support member 80 is a linear rod-like member standing upward from the pedestal 2, and a hole 80a deeper than the length of the insertion portion 96b of the engagement tool 96 described below is opened from the distal end side. The axial dimension of the support member 80 is positioned above the coupling mechanism 4 of the arm main bodies 102 and 202 whose tip positions are directed upward, and the guide portions 31 provided on the tip-side arm constituent members 102b and 202b. , 41 is located slightly below. One end of the supporting thread-like members 81 and 82 is connected to a portion facing upward of the pedestal side arm constituting members 102a and 202a when the arm main bodies 102 and 202 are extended to the side of the pedestal 2. Furthermore, the other ends of the supporting thread-like members 81 and 82 are in a state where the supporting thread-like members 81 and 82 are stretched when the arm main bodies 102 and 202 are extended to the side of the base 2. The support member 80 is connected to a predetermined position. Thereby, when the arm main bodies 102 and 202 are rotated downward from the position facing upward by the coupling mechanism 3, the arm main bodies 102 and 202 are rotated to a position extending to the side (position extending substantially horizontally). It is regulated and kept in a laterally extended state.

  Furthermore, a thread-like member 95 having a predetermined length is attached to the adhesive member 6, and an engagement tool 96 is attached to the tip of the thread-like member 95. The engagement tool 96 has two insertion portions 96a and 96b having different lengths. In this embodiment, the engagement tool 96 has the insertion portion 96a longer than the insertion portion 96b by a predetermined dimension. As a result, the arm main bodies 102 and 202 are directed upward and are brought close to the support member 80, and the support member 80 and the arm main bodies 102 and 202 are collected (if necessary, as shown in FIG. 6A). The arm main bodies 102 and 202 are twisted so that the arm main bodies 102 and 202 and the support member 80 are twisted and entangled with each other), and the guide portions 31 and 41 of the distal end side arm constituent members 102b and 202b are arranged substantially vertically. After that, the insertion part 96a of the engagement tool 96 is inserted into the hole 80a of the support member 80, and the insertion part 96b of the engagement tool 96 is inserted into the guide parts 31 and 41, so that the support member 80 and the arm main bodies 102 and 202 are gathered. The maintained state can be temporarily maintained. On the other hand, by pulling the thread-like member 40 and pulling the engagement tool 96 from the hole 80a of the support member 80 or the guide portions 31 and 41 of the distal end side arm constituting members 102b and 202b, the support member 80, the arm main body 102, It is also possible to cancel the state in which the 202s are aggregated.

  By setting it as the pulling rope attachment instrument 1 of such a structure, it becomes possible to hook a pulling rope on the trunk of a tree to be felled by the following procedure.

  First, the operating rod connecting portion 90 is connected to an operating rod (not shown), and the arm main bodies 102 and 202 are placed close to the supporting member 80 so as to face upward, and the supporting member 80 and the arm main bodies 102 and 202 are collected. Then, after temporarily engaging the state where the support member 80 and the arm main bodies 102 and 202 are integrated with the engaging tool 96, the operator lifts the pull rope attaching device 1 with the operation rod.

  Next, the thread-like member 30 was pulled, the engaging tool 96 was removed from the support member 80 and the arm main bodies 102 and 202, and the arm main bodies 102 and 202 of the arm members 10 and 20 were extended toward the side of the base 2. In this state, the arm body 102, 202 is expanded so that the inner angle between the arm bodies 102, 202 is spread to a predetermined angle (for example, 45 degrees).

  Furthermore, after the trunk of the tree to be felled is accommodated between the arm bodies 102 and 202, the threaded member 30 is pulled so that the distal ends of the distal arm constituent members 102b and 202b are brought closer to each other by the connecting mechanism 4. The adhesive member 6 is connected to the adhesive member 5 by bending. At this time, by releasing the tension of the thread-like member 30, the tip arm constituent members 102 b and 202 b return to the original open state, so that it is possible to try again and again until the adhesive member 6 is connected to the adhesive member 5.

  When the pull rope attachment device 1 is lowered while holding the operation rod while maintaining the state where the adhesive member 6 is connected to the adhesive member 5, the thread-like member 30 surrounds a part of the tree to be cut. It extends, maintaining the state hooked in the U-shape, and the pull rope attachment device 1 is lowered to the place where the worker is present. Therefore, the connection between the adhesive member 5 and the adhesive member 6 is released, the pulling rope is connected to the adhesive member 6, and the thread-like member 30 is pulled so that the adhesive member 6 is lifted. The rope can be in a state of being hooked in a substantially U shape around the tree to be cut.

  Note that when the pull rope attachment device 1 is lowered from above the tree to be felled, even if the tip of the arm member 10 and the tip of the arm member 20 are brought close to each other by operating the thread-like member 40, the adhesive member 6 is bonded. If not properly connected to the member 5, it is possible to try again and again from the procedure of lifting the pulling rope mounting instrument 1 described above.

  Here, with respect to the configuration of the arm main bodies 102 and 202 of the arm members 10 and 20 of the pull rope attaching device 1, the base side arm constituent members 102a and 202a and the front end side arm configuration are arranged so that both ends are close to each other. The members 102b and 202b and the coupling mechanism 4 are configured, but the present invention is not necessarily limited thereto. The arm bodies 102 and 202 may be a single member made of a highly flexible material that can be bent in a substantially L shape.

  In addition, the arm members 102 and 202 of the arm members 10 and 20 of the pull rope attachment device 1, 202 and the support member 80 are integrated, and an engagement that can be operated by the thread member 30 in order to maintain the integrated state. Although the tool 96 is used, it is not necessarily limited to this. The arm main bodies 102 and 202 of the arm members 10 and 20 of the pull rope attaching device 1 and the support member 80 are temporarily fixed with magnets, rubber bands, other annular elastic members, and the like. Any structure that can be released by pulling may be used.

DESCRIPTION OF SYMBOLS 1 Pull rope attachment instrument 2 Base 3 Connection mechanism 4 Connection mechanism 5 Adhesive member 6 Adhesive member 7 Energizing mechanism 10 Arm member (other arm member)
102a Base side arm constituent member 102b Tip side arm constituent member 20 Arm member (one arm member)
202a Base side arm constituent member 202b Tip side arm constituent member 30 Threaded member 32 Stopper 32a, 32b Through hole 40 Threaded member 42 Hole 43 Push member 80 Support member 81 Thread member for support 82 Thread member for support 96 Engagement tool

Claims (4)

A pedestal connected to the operation rod, and a plurality of rod-like arm members attached to the pedestal,
The plurality of bar-shaped arm members are radially expanded from a position facing upward to a position facing the side of the pedestal, and then returned to the position facing upward through the coupling mechanism so as to return to the position facing upward. Connected to
One arm member of the plurality of rod-shaped arm members crosses the middle while the first thread-like member is hooked along the outer side in the longitudinal direction of the one arm member, and the one arm from the middle It is pulled out from the tip through the inside of the member, the first adhesive member is detachably disposed at the tip of the drawn portion, and the first thread-like member is pulled, whereby the tip of the one arm member The first arm member is pushed by the first attaching / detaching member to cause deformation of the one arm member, and
The other arm member of the plurality of rod-shaped arm members has a second detachable member that can be bonded to and detached from the first detachable member fixed to a tip, and the second thread-shaped member is While being pulled along the outside in the longitudinal direction of the other arm member, the tip is fixed to the other arm member, and the second thread-like member is pulled, so that the other arm member is pulled. The deformation of
For pulling rope attachment, wherein the first adhesive member adheres to the second adhesive member when the one arm member and the other arm member are deformed and their tips are close to each other. Instruments. The plurality of rod-shaped arm members are connected via a support member and a supporting thread-like member that are erected upward from the pedestal,
When the plurality of rod-shaped arm members are deployed to positions facing the sides of the pedestal, the support member is in a tensioned state and is lower than the pedestal at the tips of the plurality of rod-shaped arm members. While restricting the displacement to
When the plurality of bar-shaped arm members are respectively positioned upward, the plurality of bar-shaped arm members and the support member are engaged with each other by an engagement tool provided on the first thread-shaped member. The pull rope attachment device according to claim 1, wherein the engagement is released by pulling the first thread-like member. The plurality of rod-shaped arm members include a pedestal side arm constituent member and a distal end side arm constituent member,
The pedestal side arm component member and the distal end side arm component member are coupled via a coupling mechanism so that the distal end of the distal end side arm component member can be bent in a direction approaching each other,
The pulling rope according to claim 1 or 2, wherein an urging mechanism for urging the distal arm component member in a direction opposite to the bending direction is provided between the arm component members. Mounting equipment. The first thread-like member and the second thread-like member are drawn downward through a through-hole of a tubular member provided in the pedestal,
The second thread-like member is attached to a stopper larger than the through-hole of the tubular member after being pulled out from the through-hole of the tubular member,
The first thread-like member passes through a through hole provided in the stopper, and a pressing member larger than the through hole of the stopper is provided at a predetermined position.
The second thread-like member is also pulled by the pulling of the first thread-like member after the pressing member comes into contact with the peripheral edge of the through hole of the stopper. Equipment for pulling rope installation according to crab.

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