JP2018011514A - Collecting work vehicle and method for collecting materials by collecting work vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a collecting work vehicle that is capable of assisting the tension of a winch by the bending force of an arm or boom and the turning force of a swiveling body of a collecting work vehicle; and a method for collecting materials by a collecting work vehicle.SOLUTION: According to the present invention, there is provided a collecting work vehicle 100 comprising: a base machine composed of a traveling body 101 and a swiveling body 102; a boom 104 attached to the rotating body 102; an arm 106 attached to the boom 104; a wire W1 for attracting a collecting material to the side of the base machine; and a winch 109 attached to the rotating body 102 or the boom 104 to wind up the wire W1. Here, the work vehicle performs bending and stretching movements by the boom 104 and the arm 106. The work vehicle comprises: blocking means 1 attached to the arm 106 for preventing the wire W1 from being unwound, and winch prevention means 3 attached closer to the side of the winch 109 than the blocking means 1 to prevent extension of the wire W1.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a gathering work vehicle and a gathering method for the gathering work vehicle, and more particularly to a gathering work vehicle having a winch for winding a wire and a gathering method for the gathering work vehicle.

  In the forestry industry, a swing yarder using a timber work vehicle is well known as a timber collecting method for collecting wood near the timber work vehicle. The swing yarder is a large-scale device, and qualification is necessary for this work. When the swing yarder is used, the timber and the collecting work vehicle are generally not separated from each other. As shown in FIG. 7 of FIG. 7 and FIG. 4 of Patent Document 2, the materials are collected by using a winch attached to a boom, a main body or the like of a work vehicle for collecting materials having a boom and an arm. Specifically, a wire is extended from the winch, and the wire is wound up by the winch after being hooked on the wood through the wire on the pulley attached near the tip of the arm.

JP 2004-315226 A JP 2003-73074 A

  Since the conventional lumber gathering method brings the wood only with the force of the winch, a large tensile force is required for the winch, so that a very expensive winch is required.

  The present invention provides a gathering work vehicle capable of assisting the pulling force of the winch by the bending force of the arm or boom of the gathering work vehicle or the turning force of the turning body, and the gathering work vehicle of the gathering work vehicle. An object of the present invention is to provide a gathering method and enable gathering even with a winch that is inexpensive and has a small tensile force.

  In order to achieve the above object, a collecting vehicle according to the present invention includes a base machine including a traveling body and a swiveling body, a boom attached to the swiveling body, an arm attached to the boom, and a collected material. And a winch attached to the swivel body or the boom for winding the wire, and a bending work vehicle for bending and extending with the boom and the arm. And a blocking means that is attached to the arm and prevents the wire from being fed out, and a winch feeding prevention means that is attached to the winch side of the blocking means and prevents the wire from being fed. To do.

  Since the tip of the wire is drawn by bending the arm or boom or turning the turning body, the bending force or turning force assists the winding force of the winch. Thereby, it is possible to perform the lumber gathering work exceeding the winding force of the winch. For example, gathering work with obstacles such as large timber, steep hills and stumps can be performed. Further, since a winch having a weak winding force may be used, an inexpensive work vehicle for collecting materials is obtained. In addition, since the collecting tool is only attached to the existing collecting vehicle, the above-described effects can be easily obtained at low cost.

  In the collecting vehicle according to the present invention, it is preferable that the winch feed preventing means is provided in the winch.

  Gathering work exceeding the pulling force of the winch can be carried out at a very low cost by adding a means for preventing retrofitting.

  Further, in the work vehicle for collecting materials according to the present invention, it is preferable that the winch feeding prevention means is disposed between the prevention means and the winch.

  When the winch of the existing collecting vehicle is not equipped with the winch feeding prevention means, the collecting work exceeding the tensile force of the winch can be performed by separately attaching the winch feeding prevention means.

  Moreover, in the work vehicle for collecting materials according to the present invention, it is preferable that at least one of the blocking means or the winch feed preventing means blocks only the wire feeding direction.

  The blocking means and the reverse rotation preventing mechanism (for example, the ratchet function of the winch) do not fix the wire, and the direction in which the winch winds the wire always releases the blocking and allows the wire to move. Therefore, the workability is improved because it is not necessary to perform the blocking / opening switching operation of the blocking means or the reverse rotation prevention mechanism in the gathering work. Since the blocking means blocks only the wire feeding direction, the winch can be taken up while pulling the wood, and the workability is further improved. At this time, since there is no sag of the wire, it is possible to avoid a failure due to sag.

  Further, in the work vehicle for collecting materials according to the present invention, when the bending operation is performed so that the tip of the wire fed out from the arm is moved in the winch direction, the blocking means prevents the wire from being fed out. When the bending operation is performed so that the tip of the arm approaches the tip of the wire, the winch feed-in preventing means prevents the wire from being drawn out, and the blocking means allows the wire to be pulled in. preferable.

  Even if the winch has a weak pulling force, it is possible to collect the material with the bending force of at least one of the boom and the arm.

  In the collecting vehicle according to the present invention, when the turning operation is performed so that the tip of the wire fed out from the arm is moved toward the winch, the blocking means prevents the wire from being fed out. When the turning operation is performed so that the tip of the arm approaches the tip of the wire, the winch feed-inhibiting means prevents the wire from being fed out, and the blocking means allows the wire to be pulled in. preferable.

  Even if the pulling force of the winch is weak, it is possible to collect the materials by the turning force of the turning body.

It is a side view which shows the main structures of 1st Embodiment. It is a side view which shows the material collection method of 1st Embodiment. It is a side view which shows the main structures of 2nd Embodiment. It is a side view which shows the material collection method of 3rd Embodiment. It is a side view which shows the main structures of 4th Embodiment. It is a side view which shows the material collection method of 5th Embodiment.

  DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments for carrying out the present invention will be described with reference to the embodiments and drawings. However, the embodiments shown below are not intended to limit the present invention to those described herein, and The invention can be equally applied to various modifications without departing from the technical idea shown in the claims. In addition, in each drawing used for the description in this specification, in order to make each member a size that can be recognized on the drawing, each member is displayed with a different scale, and is not necessarily actual. It is not displayed in proportion to the dimensions.

[First embodiment]
The structure of the work vehicle 100 for collecting materials of 1st Embodiment of this invention is demonstrated using FIG. The collecting work vehicle 100 is a vehicle that draws wood W or the like near the collecting work vehicle 100. As shown in FIG. 1, the work vehicle 100 for collecting logs according to the first embodiment includes a traveling body 101 that travels on a rubber crawler 101 a, a revolving body 102 that is pivotally supported by the traveling body 101, and a pivoting body 102. A boom 104 that can be bent by a supported hydraulic boom cylinder 103, an arm 106 that can be bent by a hydraulic arm cylinder 105 that is supported by the boom 104, and a hydraulic packet cylinder 107 that is supported by the arm 106 as an attachment. The bendable bucket 108 and the swivel body 102 are provided with a winch 109. Further, a pressure stopper 1 as a blocking means for preventing the wire W1 from being fed out is disposed on the distal end side of the arm 106, and a relay pulley 2 on which the wire W1 of the winch 109 is hung is disposed on the distal end side of the boom 104. It is pivotally attached. In this figure, the side wall for preventing the wire W1 from coming off is seen through in order to make the wire W1 easier to unravel.

  The winch 109 is provided with ratchet means 3 as winch feed preventing means for preventing the wire W1 from being fed. The ratchet means 3 has a ratchet gear 31 and a ratchet claw 32 engaged therewith. The ratchet pawl 32 is slidable by a roller 33 and is urged toward the ratchet gear 31 by a compression coil spring 34. When the ratchet pawl 32 is engaged with the ratchet gear 31, the winch 109 is prevented from rotating only in the direction in which the wire W <b> 1 is fed out of the winch 109. A release wire W2 is connected to the ratchet pawl 32, and the ratchet wire 35 is pulled by operating the winch 109 or a lever (not shown) of the driver's seat. Then, the engagement between the ratchet pawl 32 and the ratchet gear 31 is released, and the wire W1 can be fed out. As described above, the winch 109 has a ratchet reverse rotation preventing function.

  The pressing means 1 includes a chassis 11 fixed to the arm 106, three pulleys 12 pivotally supported on the chassis 11, and a pressing lever 13 pivotally supported on the chassis 11. A side wall 11a is formed on the chassis 11 by bending a sheet metal. A wire W1 is hung on two of the three pulleys 12, and a side wall 11a and a pressure lever 13 are disposed so as to sandwich the wire W1 between the two pulleys 12. The remaining one pulley 12 is disposed at a position between the drawing-side pulley 12 and the wire W1, and supports the wire W1 when the direction of the wire W1 changes. When the pressing lever 13 rotates toward the side wall 11a, the wire W1 is pinched and pressed. For this reason, at the time of standby without pressure stop, the pressure stop lever 13 is urged away from the side wall 11a by a torsion spring (not shown). A blocking wire W3 is connected to a position separated from the rotation shaft 14 of the pressing lever 13, and when the blocking wire W3 is pulled by operating a lever (not shown) of the driver's seat, the blocking lever 13 is moved to the side wall. The wire W1 is pressed by rotating to 11a and cannot move in either direction.

  Next, the collecting method of the first embodiment will be described with reference to FIG. As shown in FIG. 2 (1), the boom 104 and the arm 106 are extended, the wood W is in front of the arm 106, and the wire W1 of the winch 109, which is prevented only from reverse rotation, is connected to the relay pulley 2 and the pressure stop. It is an initial state connected to the wood W through the means 1. The blocking wire W3 is pulled, and the pressing means 1 presses the wire W1 (step S1). Then, the arm 106 is bent (step S2). The wood W is pulled toward the collecting vehicle 100 by the force of bending the arm 106. At this time, since the winch 109 is not rotated, the wire W1 bends (see (2) in FIG. 2). The bent wire W1 is wound by the winch 109 (step S3). When the winding is finished, the blocking wire W3 is operated to release the pressure stopping means 1 (step S4). Then, the arm 106 is extended (step S5). At this time, since the reverse rotation of the winch 109 is prevented by the ratchet means 3 and the pressure stop of the pressure stop means 1 is released, the tip of the arm 106 can approach the wood W side. By repeating these steps S1 to S5, the distant wood W can be gradually brought closer to the collecting work vehicle 100 side. In this way, since the rotational force of the winch 109 only winds the bent wire W1, the collecting work can be performed even with the winch 109 having a weak rotational force (or tensile force of the wood W).

[Second Embodiment]
Next, the collecting work vehicle 100B of the second embodiment will be described with reference to FIGS. In the collecting work vehicle 100B of the second embodiment, the same reference numerals are given to the same components as those of the collecting work vehicle 100 of the first embodiment, and detailed description thereof is omitted. For parts having the same name but different from each other, a suffix “B” is added to the reference symbol. The main difference between the collecting work vehicle 100B of the second embodiment and the collecting work vehicle 100 of the first embodiment is that the pressure stopping means 1 of the first embodiment (the blocking means of the first embodiment) is a wire. In contrast to blocking W1 in either direction, the non-return means 1B of the second embodiment (blocking means of the second embodiment) blocks only the feeding direction of the wire W1.

  As shown in FIG. 3, the work truck for collecting material 100B according to the second embodiment includes non-return means 1B (as a prevention means for preventing the wire W1 from being fed out) instead of the pressure stop means 1 according to the first embodiment. ing. The non-return means 1B includes a chassis 1B1 fixed to the arm 106, four pulleys 1B2 pivotally supported by the chassis 1B1, and first and second non-returns pivotally supported by the chassis 1B1. It consists of levers 1B3 and 1B4. The first and second check levers 1B3 and 1B4 are arranged to oppose each other with the wire W1 interposed therebetween, and four pulleys 1B2 are arranged with the first and second check levers 1B3 and 1B4 interposed therebetween. The first and second check levers 1B3 and 1B4 are provided with gears 1B3a and 1B4a that engage with each other and rotate.

  The pressure stop portions 1B3b and 1B4b of the first and second check levers 1B3 and 1B4 that are in contact with the wire W1 have an arc shape with a part of the blade. The fulcrums 1B3c and 1B4c of the arc pressure stoppers 1B3b and 1B4b are displaced in a direction closer to the pivots 1B3d and 1B4d of the first and second check levers 1B3 and 1B4. In the feeding direction of the wire W1, the contact portions of the pressure stopping portions 1B3b and 1B4b move in the direction of narrowing, so the wire W1 is pressed by the pressure stopping portions 1B3b and 1B4b, and the feeding is prevented. In the hand-feeding direction of the wire W1, the hand-holding is allowed because the contact portions of the pressure stop portions 1B3b, 1B4b move in a widening direction. In this way, the non-return means 1B of the second embodiment blocks only the feeding direction of the wire W1.

  Next, the collecting method of the second embodiment will be described with reference to FIG. The arm 106 is bent from the initial state described above (step S1). The wood W is pulled toward the collecting work vehicle 100B side by the force of bending the arm 106. At this time, since the winch 109 is not rotating, the wire W1 bends (see (2) in FIG. 4). The bent wire W1 is wound by the winch 109 (step S2). When the winding is finished, the arm 106 is extended (step S3). At this time, the winch 109 is prevented from rotating reversely by the ratchet means 3, and the non-return means 1B does not block the feeding, so that the tip of the arm 106 can approach the wood side. If these steps S1B to S3B are repeated, the distant wood W can be gradually brought closer to the collecting work vehicle 100B side.

  In this way, since the winch 109 only winds the bent wire W1 in the second embodiment, the collecting work can be performed even with the winch 109 having a weak winding force. Since the non-return means 1B of the second embodiment blocks only the feeding direction of the wire W1, there is no need to switch between blocking / opening in the hand-feeding direction, and it is possible to perform the gathering work faster than the first embodiment. .

  Further, since the non-return means 1B prevents only the feeding direction of the wire W1, the winch 109 can be wound up while pulling the wood W, and workability is further improved. At this time, since there is no sag of the wire, it is possible to avoid a failure due to sag.

[Third embodiment]
Next, a collecting vehicle 100C according to a third embodiment will be described with reference to FIGS. In the collecting work vehicle 100C of the third embodiment, the same reference numerals are given to portions having the same configuration as the collecting work vehicle 100 of the first embodiment, and detailed description thereof is omitted, and the configuration is omitted. For parts having the same name but different from each other, the suffix “C” is added to the reference symbol. The main difference between the collecting vehicle 100C of the third embodiment and the collecting vehicle 100 of the first embodiment is that the winch 109C of the third embodiment does not have a reverse rotation preventing function, Instead, a winch stopper 3C (winch feed preventing means) for preventing the wire W1 from being fed from the winch 109C is provided.

  As shown in FIG. 5, a winch stopper 3C that prevents the wire W1 from being fed is disposed in the vicinity of the winch 109C. The winch stopper 3C has the same configuration as that of the pressing means 1 of the first embodiment, and when the winch blocking wire W4 is pulled, the pressing lever 13C presses the wire W1 and the feeding of the wire W1 is blocked. This blockage also prevents rushing, so it is necessary to release the blockage when timber is pulled.

  Next, a material collecting method according to the third embodiment will be described with reference to FIG. From the initial state described above, the winch stopper 3C is opened (step S1C), and the pressure stopping means 1 serving as a blocking means for preventing the wire W1 from being fed is set to a pressure stopped state (step S2C). Then, the arm 106 is bent (step S3C). The wood W is pulled toward the collecting vehicle 100 by the force of bending the arm 106. At this time, since the winch 109C is not rotating, the wire W1 bends (see (2) in FIG. 6). The bent wire W1 is wound by the winch 109C (step S4C). The winch stopper 3C is brought into a pressure-stopped state (step S5C), and the pressure-stopping means 1 is brought into an open state (step S6C). Then, the arm 106 is extended (step S7C). At this time, the wire W1 from the winch 109C is prevented from being fed out by the winch stopper 3C and the pressure stop of the pressure stop means 1 is released, so that the tip of the arm 106 can approach the wood side. By repeating these steps S1C to S7C, the distant wood W can be gradually brought closer to the collecting work vehicle 100C side. Thus, even if the winch 109C does not have a reverse rotation prevention function, the winch stopper 3C is provided to collect the material. Here, if the winch stopper 3C is a winch feed prevention means that allows the hand-feeding direction as in the non-return means of the second embodiment, the operation of blocking / opening the winch feed prevention means becomes unnecessary, so that the collecting material Workability is improved.

  The work vehicle 100 for gathering in the above-described embodiment performs the gathering operation by bending and extending the front wood W by the arm 106. However, the present invention refers to “front”, “wood W”, “arm”. The present invention is not limited to the “bending and stretching operations of 106”.

  For example, when there are trees on both sides and it is difficult to turn, it is possible to gather the wood from the front and then pull the back wood without turning. At this time, the bending operation and the extending operation of the arm 106 are reversed. Further, the present invention can be applied to collecting materials such as building materials and civil engineering materials other than wood.

  Further, the material can be collected by the bending operation and the extending operation of the boom 104, and the operation of the boom 104 and the arm 106 may be performed simultaneously. Further, the wood W may be pulled by the turning force of the turning body 102. In particular, if the swivel body 102 is swung 180 degrees from the state where the arm 106 is extended to the front, the wood W can be pulled by the swirling diameter.

  Further, although the winch 109 of the above-described embodiment is disposed on the revolving body 102, even when the winch 109 is disposed on the boom 104, the gathering can be performed by the bending operation and the extending operation of the arm 106. Further, the winch 109 may be rotated while the boom 104 and the arm 106 are bent and extended, or the revolving body 102 is turned. At this time, workability is improved. Moreover, since the wire W does not sag, an accident caused by the sag of the wire W can be avoided.

  In addition, as in the first and second embodiments, when the winch 109 has a reverse rotation prevention function, it is only necessary to add the pressure stop means 1 and the check means 1B to the existing work truck for collecting materials. Since the pulling force of the winch can be assisted by the bending force or turning force of the collecting vehicle, collecting can be performed even with an inexpensive winch 109 having a weak tensile force. In addition, even if a situation where the wood that exceeds the winch's pulling capacity needs to be collected suddenly occurs in the field, it can be collected immediately.

DESCRIPTION OF SYMBOLS 100: Collecting work vehicle 102: Revolving body 104: Boom 106: Arm 109: Winch 1: Pressure stop means (blocking means)
2: pulley for relay 3: ratchet means 3C: winch stopper (winch feed prevention means)
W: wood W1: winch wire W2: release wire W3: blocking wire W4: winch blocking wire

Claims (6)

A base machine composed of a traveling body and a revolving body;
A boom attached to the swivel body;
An arm attached to the boom;
A wire that draws the collected material toward the base machine,
A winch attached to the swivel body or the boom for winding the wire,
Bending and stretching by the boom and the arm,
A work vehicle for collecting materials that performs a turning operation by the turning body,
Blocking means attached to the arm to prevent the wire from being extended;
A collecting work vehicle, comprising: a winch feed preventing means that is attached to the winch side with respect to the preventing means and prevents the wire from being fed.   The work vehicle for collecting material according to claim 1, wherein the winch feed-in preventing means is provided in the winch.   The work vehicle for collecting materials according to claim 1, wherein the winch feed-in preventing means is installed between the preventing means and the winch.   2. The work truck for collecting lug according to claim 1, wherein at least one of the blocking means or the winch feed preventing means blocks only a feeding direction of the wire. A base machine composed of a traveling body and a revolving body;
A boom attached to the swivel body;
An arm attached to the boom;
A wire that draws the collected material toward the base machine,
A winch attached to the swivel body or the boom for winding the wire,
A collecting method for a collecting vehicle that performs bending and stretching operations with the boom and the arm,
Blocking means attached to the arm to prevent the wire from being extended;
A winch feed-inhibiting means attached to the winch side with respect to the preventing means to prevent the wire from being fed out,
When the bending operation is performed so as to bring the tip of the wire drawn out from the arm toward the winch, the blocking means prevents the wire from being drawn,
When the bending / extending operation is performed so that the tip of the arm approaches the tip of the wire, the winch feed-inhibiting means prevents the wire from being fed out, and the blocking means allows the wire to be pulled in. The method of collecting the working vehicle for collecting materials. A base machine composed of a traveling body and a revolving body;
A boom attached to the swivel body;
An arm attached to the boom;
A wire that draws the collected material toward the base machine,
A winch attached to the swivel body or the boom for winding the wire,
A collecting method for a collecting vehicle for performing a turning operation by the turning body,
Blocking means attached to the arm to prevent the wire from being extended;
A winch feed-inhibiting means attached to the winch side with respect to the preventing means to prevent the wire from being fed out,
When the turning operation is performed so as to bring the tip of the wire drawn out from the arm toward the winch, the blocking means prevents the wire from being drawn,
When the turning operation is performed so that the tip of the arm approaches the tip of the wire, the winch feed-in preventing unit prevents the wire from being fed out, and the blocking unit allows the wire to be pulled in. The method of collecting the working vehicle for collecting materials.

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