JP6714460B2 - Collection vehicle and collection method for collection vehicle - Google Patents

Description

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

In the forestry industry, a swing yader using a logging work vehicle is well known as a logging method for collecting timber near a logging work vehicle. Swing yarders are large-scale devices, and since this work requires qualification, when the timber and the work vehicle for collecting logs are not so far apart from each other as to use swing yarders, generally, Patent Document 1 7 and FIG. 4 of Japanese Patent Laid-Open Publication No. 2004-242242, a winch attached to a boom or a main body of a work vehicle for collecting material having a boom and an arm. Specifically, the wire is extended from the winch, the wire is passed through a pulley attached near the tip of the arm and hooked on the wood, and then the wire is wound by the winch.

JP, 2004-315226, A JP, 2003-73074, A

In the conventional collecting method, since the lumber is brought only by the force of the winch, a large pulling force is required for the winch, and thus a very expensive winch is required.

The present invention provides a work vehicle for collecting material that can assist the pulling force of a winch by the bending force of an arm or boom of a work vehicle for collecting material or the turning force of a revolving structure. An object of the present invention is to provide a collecting method, and to enable collecting even with a winch that is inexpensive and has a small tensile force.

In order to achieve the above object, a work vehicle for collecting material of the present invention includes a base machine including a traveling body and a swing body, a boom attached to the swing body, an arm attached to the boom, and a gathering material. And a winch attached to the revolving unit or the boom for winding up the wire. The bending and stretching operation is performed by the boom and the arm, and the revolving unit revolves. A work vehicle for collecting material that operates, and a blocking means that is mounted on the arm to block the wire from being fed and is mounted on the winch side of the blocking means for use in collecting the material by the bending and stretching operation. And a winch feeding-out preventing means for preventing the wire from being fed out.

Since the tip of the wire is pulled by bending the arm or boom, the bending force assists the winding force of the winch. As a result, it is possible to perform a lumber gathering operation for wood that exceeds the winding force of the winch. For example, it is possible to perform logging operations with large timbers and obstacles such as steep slopes and stumps. Further, since a winch having a weak winding force may be used, the work vehicle for collecting logs is inexpensive. Further, since the collecting tool is simply attached to the existing work vehicle for collecting logs, the above effect can be easily obtained at low cost.

Further, in the work vehicle for collecting material of the present invention, it is preferable that the winch feeding-out preventing means is provided in the winch.

Gathering work exceeding the pulling force of the winch can be performed at a very low cost only by adding a blocking means to be attached later.

Further, in the work vehicle for collecting material according to the present invention, it is preferable that the winch feeding preventing means is installed between the preventing means and the winch.

When the winch of the existing work vehicle for collecting material does not have the winch feeding-out preventing means, by attaching the winch feeding-out preventing means separately, it is possible to perform the collecting operation exceeding the tension of the winch.

Further, in the work vehicle for collecting material according to the present invention, it is preferable that at least one of the blocking unit and the winch feed-out preventing unit 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, but the winch always winds the wire to release the blocking and allow the wire to move. Therefore, in the collecting operation, it is not necessary to perform the blocking/opening switching operation of the blocking means and the reverse rotation preventing mechanism, so that the workability is improved. Since the blocking means blocks only the wire feeding direction, it is possible to wind the winch while pulling in the wood, further improving the workability. Further, at this time, since there is no slack in the wire, it is possible to avoid an obstacle due to the slack.

Further, in the work vehicle for collecting material of the present invention, when the bending and stretching operation is performed so as to bring the tip of the wire fed out from the arm toward the winch direction, the blocking means blocks the wire feeding out. When the bending and stretching operation is performed so that the tip of the arm approaches the tip direction of the wire, the winch feed-out preventing means prevents the wire from feeding out, and the blocking means allows the wire to be pulled in. preferable.

Even if the winch has a weak pulling force, the bending force of at least one of the boom and the arm can be used to collect the lumber.

Further, in the work vehicle for collecting material of the present invention, when the turning operation is performed so as to bring the tip of the wire fed from the arm toward the winch direction, the blocking means blocks the wire feeding. When the turning operation is performed such that the tip of the arm approaches the tip direction of the wire, the winch feeding-out preventing means prevents the wire from feeding 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 timber with 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 collecting 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 collecting 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 collecting method of 5th Embodiment.

Hereinafter, modes for carrying out the present invention will be described with reference to the embodiments and the drawings, but the embodiments shown below are not intended to limit the present invention to those described herein, and the present invention 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 in the drawing, each member is shown in a different scale, and is not necessarily shown. It is not displayed in proportion to the size of.

[First Embodiment]
The configuration of the collecting vehicle 100 according to the first embodiment of the present invention will be described with reference to FIG. 1. The collecting vehicle 100 is a vehicle that draws the wood W or the like near the collecting vehicle 100. As illustrated in FIG. 1, a work vehicle 100 for collecting material according to the first embodiment has a traveling body 101 that travels by a rubber crawler 101 a, a revolving body 102 that is pivotally supported by the traveling body 101, and a revolving body 102. A boom 104 that is supported and can be bent by a hydraulic boom cylinder 103, an arm 106 that is supported by the boom 104 and can be bent by a hydraulic arm cylinder 105, and a hydraulic packet cylinder 107 that is supported by the arm 106 as an attachment. A bendable bucket 108 and a swing structure 102 are provided with a winch 109. Further, a pressure stopping means 1 as a blocking means for preventing the wire W1 from being fed out is provided at the tip end side of the arm 106, and a relay pulley 2 for hanging the wire W1 of the winch 109 is provided at the tip end side of the boom 104. It is rotatably 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 easy to understand.

The winch 109 is provided with a ratchet means 3 as a winch feeding-out preventing means for preventing the wire W1 from being fed out. The ratchet means 3 has a ratchet gear 31 and a ratchet pawl 32 that engages with the ratchet gear 31. The ratchet pawl 32 is slidable by a roller 33, and is biased toward the ratchet gear 31 by a compression coil spring 34. When the ratchet pawl 32 is engaged with the ratchet gear 31, the rotation of the winch 109 only in the direction in which the wire W1 is paid out from the winch 109 is blocked. 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) on 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 paid out. In this way, the winch 109 has a ratchet reverse rotation preventing function.

The pressure stop means 1 includes a chassis 11 fixed to the arm 106, three pulleys 12 pivotally supported by the chassis 11, and a pressure stop lever 13 pivotally supported by the chassis 11. A side wall 11a is formed on the chassis 11 by bending a sheet metal. The wire W1 is hung on two of the three pulleys 12, and the side wall 11a and the pressure stop lever 13 are arranged so as to sandwich the wire W1 between the two pulleys 12. The remaining one pulley 12 is disposed at a position sandwiching the wire W1 from the payout side pulley 12 and supports the wire W1 when the direction of the wire W1 is changed. When the pressure-stop lever 13 rotates toward the side wall 11a, the wire W1 is sandwiched and pressure-stopped. For this reason, the pressure stop lever 13 is urged by a torsion spring (not shown) in a direction in which the pressure stop lever 13 is separated from the side wall 11a at the time of standby without pressure stop. 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) in the driver's seat, the pressing lever 13 is moved to the side wall. The wire W1 is pressed by turning 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 (1) of FIG. 2, the boom 104 and the arm 106 extend, the wood W is in front of the arm 106, and the wire W1 of the winch 109 in which only reverse rotation is blocked is stopped with the pulley 2 of the relay. It is an initial state in which it is 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). Due to the force of bending the arm 106, the wood W is pulled toward the work vehicle 100 for collecting material. At this time, since the winch 109 is not rotating, the wire W1 is bent (see (2) in FIG. 2). The bent wire W1 is wound around the winch 109 (step S3). When this winding is completed, the blocking wire W3 is operated to release the pressure stop of the pressure stop means 1 (step S4). Then, the arm 106 is extended (step S5). At this time, since the winch 109 is prevented from rotating in the reverse direction 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, it is possible to gradually pull the distant wood W toward the collecting vehicle 100 side. In this way, since the rotating force of the winch 109 only winds the bent wire W1, the winch 109 having a weak rotating force (or the pulling force of the wood W) can also perform the collecting operation.

[Second Embodiment]
Next, a work vehicle 100B for collecting material according to the second embodiment will be described with reference to FIGS. 3 and 4. In the work vehicle 100B for collecting material of the second embodiment, the same reference numerals are given to the same components as those of the work vehicle 100 for collecting material of the first embodiment, and the detailed description thereof will be omitted. Parts having the same name but different from each other are denoted by a suffix “B” in the reference numeral. The main difference between the work vehicle 100B for collecting material of the second embodiment and the work vehicle 100 for collecting material of the first embodiment is that the pressure-stopping means 1 (blocking means of the first embodiment) of the first embodiment is a wire. W1 is blocked in both directions, whereas the non-return means 1B of the second embodiment (blocking means of the second embodiment) blocks only the wire W1 feeding direction.

As shown in FIG. 3, the work vehicle 100B for collecting material of the second embodiment is provided with a non-return means 1B (as a blocking means for blocking the feeding of the wire W1) instead of the pressure stop means 1 of 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-return pivotally supported by the chassis 1B1. It consists of levers 1B3 and 1B4. First and second check levers 1B3 and 1B4 are arranged opposite to each other with the wire W1 sandwiched therebetween, and four pulleys 1B2 are provided with the first and second check levers 1B3 and 1B4 sandwiched therebetween. The first and second non-return levers 1B3 and 1B4 are provided with gears 1B3a and 1B4a that rotate by engaging with each other.

The pressure stop portions 1B3b and 1B4b of the first and second non-return levers 1B3 and 1B4 that come into contact with the wire W1 are arc-shaped with a partial blade. The fulcrums 1B3c and 1B4c of the arc-shaped pressure stop portions 1B3b and 1B4b are displaced in a direction closer to the fulcrum than the pivot fulcrums 1B3d and 1B4d of the first and second check levers 1B3 and 1B4. In the unwinding direction of the wire W1, the contact portions of the depressing portions 1B3b, 1B4b move in a direction in which they narrow, so that the wire W1 is depressed by the depressing portions 1B3b, 1B4b, and the unwinding is prevented. In the pulling direction of the wire W1, pulling is allowed because the contact portions of the pressure-stopping portions 1B3b and 1B4b move in a direction that widens. In this way, the non-return means 1B of the second embodiment blocks only the wire W1 feeding direction.

Next, the collecting method of the second embodiment will be described with reference to FIG. The arm 106 is bent from the above-mentioned initial state (step S1). Due to the force of bending the arm 106, the wood W is pulled toward the work vehicle 100B for collecting material. At this time, since the winch 109 is not rotating, the wire W1 is bent (see (2) in FIG. 4). The bent wire W1 is wound around the winch 109 (step S2). When the winding is completed, the arm 106 is extended (step S3). At this time, the winch 109 is prevented from being rotated in the reverse direction by the ratchet means 3 and the check means 1B does not prevent the feed-out, so that the tip of the arm 106 can approach the wood side. By repeating these steps S1B to S3B, it is possible to gradually pull the distant wood W toward the collecting vehicle 100B.

In this way, also in the second embodiment, since the winch 109 only winds the bent wire W1, it is possible to perform the collecting operation 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, it is not necessary to switch the hand pulling direction between blocking and opening, and the gathering work can be performed earlier than in the first embodiment. ..

Further, since the non-return means 1B blocks only the feeding direction of the wire W1, the winch 109 can be wound while pulling the wood W, and the workability is further improved. Further, at this time, since there is no slack in the wire, it is possible to avoid an obstacle due to the slack.

[Third Embodiment]
Next, a work vehicle for collecting material 100C according to the third embodiment will be described with reference to FIGS. 5 and 6. In the work vehicle for collecting material 100C of the third embodiment, the same reference numerals are given to the same components as those of the work vehicle for collecting material 100 of the first embodiment, and detailed description thereof will be omitted. Parts having the same name but different from each other are denoted by a suffix “C” in the reference numeral. The main difference between the work vehicle for collecting material 100C of the third embodiment and the work vehicle for collecting material 100 of the first embodiment is that the winch 109C of the third embodiment does not have a reverse rotation prevention function. Instead, a winch stopper 3C (a winch feed-out 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 for preventing the wire W1 from being paid out is disposed near the winch 109C. The winch stopper 3C has the same structure as the press-stopping means 1 of the first embodiment. When the winch blocking wire W4 is pulled, the press-stop lever 13C presses the wire W1 to prevent the wire W1 from being fed out. This blocking also prevents pulling, so it is necessary to release this blocking when pulling timber.

Next, the collecting method of the third embodiment will be described with reference to FIG. From the above-mentioned initial state, the winch stopper 3C is opened (step S1C), and the pressure stopping means 1 as a blocking means for preventing the wire W1 from being fed is brought into a pressure stopped state (step S2C). Then, the arm 106 is bent (step S3C). Due to the force of bending the arm 106, the wood W is pulled toward the work vehicle 100 for collecting material. At this time, since the winch 109C is not rotating, the wire W1 is bent (see (2) in FIG. 6). The bent wire W1 is wound around 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 opened (step S6C). Then, the arm 106 is extended (step S7C). At this time, since 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, the tip of the arm 106 can approach the wood side. By repeating steps S1C to S7C, it is possible to gradually pull the distant wood W toward the collecting vehicle 100C. In this way, even if the winch 109C does not have the reverse rotation preventing function, the winch stopper 3C can be provided to collect the lumber. Here, if the winch stopper 3C is a winch feed-out preventing means that allows the hand pulling direction like the non-returning means of the second embodiment, a blocking/opening switching operation of the winch feed-out preventing means becomes unnecessary, so that the gathering of the collected material is not necessary. Workability is improved.

In the working vehicle 100 for collecting material of the above-described embodiment, the operation of collecting wood W in the front is performed by the bending operation and the expanding operation of the arm 106. The bending motion and the stretching motion of 106” are not limited thereto.

For example, when there are trees on both sides and it is difficult to turn, it is possible to gather the front timber and then pull the back timber 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 bending operation and the extension operation of the boom 104 can collect the materials, and the operations of the boom 104 and the arm 106 may be performed at the same time. Furthermore, the timber W may be pulled by the turning force of the turning body 102. In particular, if the revolving unit 102 is turned 180 degrees from the state in which the arm 106 is extended long forward, the wood W can be pulled by the diameter of the turning.

Further, although the winch 109 of the above-mentioned embodiment is arranged on the revolving structure 102, even if it is arranged on the boom 104, the bending operation and the extending operation of the arm 106 can collect the lumber. Further, the winch 109 may be wound and rotated while the boom 104 and the arm 106 are being bent and extended, or while the revolving structure 102 is being swung. At this time, workability is improved. Moreover, since the wire W does not sag, an accident due to the sagging of the wire W can be avoided.

When the winch 109 has a reverse rotation preventing function as in the first and second embodiments, it is only necessary to add the pressure stopping means 1 and the reverse stopping means 1B to the existing work vehicle for collecting material. Since the pulling force of the winch can be assisted by the bending force and the turning force of the work vehicle for collecting material, it is possible to collect the material even with an inexpensive winch 109 having a weak tensile force. In addition, even if there is a sudden situation in the field where timber that exceeds the pulling capacity of the winch must be collected, it is possible to collect it immediately.

100: Work vehicle for collecting materials 102: Revolving structure 104: Boom 106: Arm 109: Winch 1: Pressure stopping means (blocking means)
2: pulley for relay 3: ratchet means 3C: winch stopper (winch feeding prevention means)
W: Wood W1: Winch Wire W2: Release Wire W3: Blocking Wire W4: Winch Blocking Wire

Claims (5)

A base machine consisting of a running body and a revolving body,
A boom attached to the revolving structure,
An arm attached to the boom,
A wire that pulls the collected material to the base machine side,
A winch attached to the revolving structure or the boom for winding the wire,
Performs bending and stretching operations with the boom and the arm,
A work vehicle for collecting material that performs a turning operation by the turning body,
In order to use for gathering by the bending and stretching operation,
Blocking means attached to the arm to block the wire from being drawn out,
A winch feed-out preventing means that is attached to the winch side of the blocking means and blocks the wire feeding.
A work vehicle for collecting logs, which is characterized by having. The work vehicle for collecting material according to claim 1, wherein the winch feeding-out preventing means is provided in the winch. The work vehicle for collecting material according to claim 1, wherein the winch feeding-out preventing means is installed between the preventing means and the winch. The work vehicle for collecting material according to claim 1, wherein at least one of the blocking unit and the winch feeding-out blocking unit blocks only the feeding-out direction of the wire. A base machine consisting of a running body and a revolving body,
A boom attached to the revolving structure,
An arm attached to the boom,
A wire that pulls the collected material to the base machine side,
A winch attached to the revolving structure or the boom for winding the wire,
A method for collecting materials for a work vehicle for collecting material that performs bending and stretching operations by the boom and the arm,
Blocking means attached to the arm to block the wire from being drawn out,
A winch feeding preventing means that is attached to the winch side of the blocking means and blocks the wire feeding.
When the bending and stretching operation is performed so that the tip of the wire fed from the arm is moved to the winch direction, the blocking means blocks the wire from being fed,
When the bending and stretching operation is performed so that the tip of the arm approaches the tip direction of the wire, the winch feed-out preventing means prevents the wire from feeding out, and the blocking means allows the wire to be pulled in. The method of collecting work vehicles for collecting.

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