JP6277058B2 - TOWER YADA AND COLLECTION METHOD BY TOWER YADA - Google Patents

Description

  The present invention relates to a tower yarder and a yarding method using the tower yarder that can efficiently perform a timber collecting work with less procedures, personnel and equipment than before.

  Conventionally, in the forestry industry, overhead wire gathering using a tower truck called a tower yada equipped with a tower has been carried out as a means of transporting timber such as trees that have been felled at a logging site in the forest to a gathering place such as a road. ing. A wire is stretched between the tower installed in the logging area and the tip of the felling tree, etc., and the felled timber is suspended and held in a carrier suspended on the wire. It collects by reciprocating between them.

  The overhead wire gathering by such tower yarders is roughly divided into two types, a method called skyline method and a method called running skyline method. The skyline method uses a large-diameter wire and a large transporter and can collect long distances. However, the machine is large in size and can only be used on a well-developed forest road, and the wire diameter is large. However, there is a demerit that a great deal of labor and time is required to construct and remove the skyline. On the other hand, the running skyline method (simplified overhead line) uses a small diameter wire and a small transporter and uses a small machine as a whole, so it is possible to gather on narrow forest roads and steep slopes, but long distances. In addition to being unsuitable for gathering, the tensile force is inferior to that of the skyline method, and in addition, there is a demerit that the work of horizontal gathering that gathers in the direction perpendicular to the overhead line is unstable.

  7 to 10 show an example of a tower yarder used for skyline-type overhead wire gathering. The tower yarder 50 includes a self-propelled tower yarder body 1 and a carrier 2 used in cooperation with the tower yarder body 1. The tower yarder body 1 includes a tower 3 that can be raised and lowered between a vertical direction and a horizontal direction, a sky drum 4 that feeds and winds the wire that suspends the carrier 2, and a wire that runs the suspended carrier 2 And two drums, a hall drum 5 for winding. The tower 3 has two pulleys 6 and 7 around which wires drawn from the two drums are wound. The wire fed out from the sky drum 4 is wound around the pulley 6 of the tower 3 to form the skyline 8. The wire fed out from the hall drum 5 is wound around the pulley 7 of the tower 3 and passes through the hall line 9. It comes to form.

  Two pulleys 10 and 10 for suspending and supporting the transporter 2 with wires are attached above the transporter 2. The transporter 2 includes a hoist drum 11, and the hoist drum 11 feeds and winds a wire that forms a hoist line 12 for suspending wood.

  The procedure of skyline-type overhead wire gathering by the tower yarder 50 will be described with reference to FIGS.

  First, the procedure at the start of the gathering work will be described with reference to FIG. In step S1, a transport vehicle such as a truck on which the tower yarder body 1 and the transporter 2 are mounted, and a loading machine such as an excavator that lifts and lowers the transporter 2 are caused to travel to the gathering ground. At this time, as shown in FIG. 7, the tower yarder main body 1 travels to the gathering ground with the tower 3 placed horizontally in order to keep the center of gravity low. When arriving at the logging area, the tower yarder body 1 stops in a direction in which the rear part of the vehicle is directed to the logging area.

  Next, from step S2 to step S4, the tower yarder 50 is shifted from the state shown in FIG. 7 to the state shown in FIG.

  First, as step S2, an outrigger (not shown) for supporting the tower yarder body 1 is installed, and the tower yarder body 1 is fixed to the ground.

  When the fixing of the tower yarder body 1 is completed, the tower 3 is erected vertically as step S3.

  When the standing of the tower 3 is completed, the setting before suspension of the transporter 2 is performed as step S4. The transporter 2 is placed on the loading platform of a transport vehicle such as a truck separately from the tower yarder body 1, transported to the gathering ground, and lowered onto the ground immediately behind the tower yarder body 1. In the skyline-type gathering method, the transporter 2 usually has a weight of several hundred kg, so that a loading machine such as an excavator as described above is required to lift the transporter 2 to and from the loading platform.

  When the transporter 2 is lowered to the ground, the wire as the hall line 9 is fed out from the hall drum 5 of the tower yarder body 1. After the wire is wound around the pulley 7, the tip is attached to the transporter 2.

  Next, the sky drum 4 of the tower yarder body 1 is operated to feed out the wire as the skyline 8. The wire is wound around the pulley 6, and the tip is manually passed below the pulleys 10, 10 of the transporter 2. Upon completion of step S4, the tower yarder 50 is in the state shown in FIG.

  When the setting of the transporter 2 is completed, the skyline 8 is stretched as step S5. While operating the sky drum 4 and feeding out the wire that is the skyline 8, the tip of the wire is manually transported to the felling site. In the felling site, the tip of the wire that is the skyline 8 is fixed to a tree or the like as the front pillar 14. At this time, since a wire having a large diameter is used in the skyline-type overhead wire collecting, it takes a lot of time to stretch the skyline 8. In some cases, it is necessary to stretch a guy line (not shown) around the tip 14.

  In parallel with this, the tower 3 is stretched with a guy line (holding rope) 13 for preventing the fall, and the tip of the guy line 13 is firmly fixed to the roots of trees around the gathering ground.

  When the transfer of the skyline 8 is completed, the transporter 2 is suspended on the skyline 8 in step S6. The sky drum 4 is actuated to wind up the skyline 8, and when the skyline 8 is stretched as shown in FIG. Is lifted upward. When the skyline 8 is sufficiently wound up, the skyline 8 is stretched between the pulley 6 and the front pole 14 of the tower 3 and the carrier 2 is suspended through the pulleys 10 and 10 as shown in FIG. Become a shape. The above is the procedure for starting the gathering work.

  When the above procedure is completed, the hall drum 5 is operated to feed out the hall line 9. Then, the transporter 2 travels on the skyline 8 from the gathering site to the felling site while being suspended via the pulleys 10 and 10.

  When the transporter 2 arrives at the gathering ground, the hoist drum 11 is actuated to feed out the wire as the hoist line 12, and the tip is wrapped around the cut wood or the like to be gathered. After the attachment, the hoist drum 11 is operated to wind the wire, and the wood or the like is suspended and held at a predetermined height.

  When wood or the like is suspended and held at the tip of the hoist line 12, the hall drum 5 is operated to wind up the hall line 9. Then, the transporter 2 travels on the skyline 8 from the logging area to the logging area while suspending wood through the hoist line 12. In this way, the gathering by the tower yarder 50 is performed.

  Next, a procedure at the end of the gathering work will be described with reference to FIG. At the end of the operation, first, the transporter 2 is stored as step S7. The hall line 9 is wound up, the transporter 2 travels to the gathering ground, and the transporter 2 is positioned on the rear side of the tower yarder body 1. Next, the sky drum 4 and the hall drum 5 are operated, and the skyline 8 and the hall line 9 are gradually fed out while maintaining the tension, and the transporter 2 is lowered to the ground. After removing the tip of the wire which is the skyline 8 from the front pole 14, the skyline 8 is wound up and extracted from below the pulleys 10, 10 of the transporter 2 and stored. The tip of the wire which is the hole line 9 is also removed from the transporter 2, wound up and stored. The carrier 2 from which the skyline 8 and the hall line 9 are removed is placed on the loading platform of the transport vehicle by the above-described loading machine.

  Next, the tower 3 is stored as step S8. The guy line 13 is removed and the tower 3 is stored in the horizontal direction.

  Finally, in step S9, the equipment is withdrawn. The outrigger (not shown) is removed, the tower yarder main body 1 is withdrawn, and the transporter carrying the carrier 2 and the loading machine used to lift and lower the carrier 2 are also withdrawn.

  As a document indicating the general technical level of such a tower yarder, for example, there is Patent Document 1.

JP 2012-210853 A

  The overhead wire gathering by the tower yarder as described above is very effective for gathering in a place having a complex terrain where the undulations are particularly severe, such as a mountain area in Japan. However, as described above, in the conventional tower yarder, it is not possible to perform the material collecting work only with the tower yarder. In other words, in order to gather in the forest, it is necessary to prepare a transport vehicle for transporting the transporter separately from the tower yarder body, and an excavator for lifting and lowering the heavy transporter is further provided. It is necessary to prepare. However, in many cases, it will be inconvenient for a plurality of large vehicles to pass through the forest road in the mountains to the gathering ground. In addition, as described above, in the conventional tower yarder, it is necessary to stop the tower yarder body in the direction where the rear part of the vehicle is directed to the felling area, and further to install a transporter behind it. A predetermined area is required. Therefore, there is a problem that it is difficult to carry out overhead wire gathering using the tower yarder in a place that is originally suitable for demonstrating the function of the tower yarder, such as a narrow forest road.

  Further, as described above, for the convenience of transporting the tower yarder main body and the carrier separately, it is necessary to remove the wire from the carrier at the end of the work. Therefore, in collecting work, it is necessary to pass the wire through the pulley at the start of the work and then attach it to the carrier, and similarly, at the end of the work, it is necessary to remove and store the wire from the carrier and the pulley. These operations are very troublesome. In particular, when performing a gathering work by moving between a plurality of gathering places, the above-described attaching / detaching work is required each time the work is carried out, resulting in a problem that work efficiency is lowered.

  SUMMARY OF THE INVENTION In view of such circumstances, the present invention is a tower yarder and a yard collecting by a tower yarder that can perform a timber collecting work even in a narrow timber collecting area with minimum necessary personnel and equipment. Is to provide a method.

  The present invention comprises a self-propelled tower yarder body having a tower and a carrier used in cooperation with the tower yarder body, and the carrier is suspended from a wire stretched between the tower and a front pillar. A tower yarder that collects timber harvested by traveling, wherein the tower yarder body includes a vehicle body portion having a traveling means, and a swivel portion that is rotatably installed with respect to the vehicle body portion. Is a tower yarder characterized in that it has a tower, and includes a carrier storage base that can store the carrier at a position below the tower where the carrier can be directly suspended from a wire.

  Thus, in this way, the transporter is transported to the gathering ground in a state of being stored in the transporter storage base of the tower yarder main body, so that a transport vehicle for transporting the transporter is not required separately. . In addition, at the start of the gathering work, the tower and the carrier can be swung and positioned in the direction toward the felling land, regardless of the direction in which the tower yada body is stopped. It is not necessary to stop the vehicle in the direction in which the rear part of the vehicle is directed, and it is not necessary to lower the transporter behind the tower yarder body. Further, since the carrier is directly suspended from the carrier storage base of the tower yarder body, it is not necessary to lower it to the ground, and a loading machine such as an excavator for lowering the carrier to the ground is also unnecessary. Moreover, at the end of the gathering work, the carrier can be lowered directly onto the carrier storage base by lowering while adjusting the winding amount of each wire so that the carrier is directly above the carrier storage base. There is no need for the work of lowering the carrier to the ground once and placing it on the carrier storage base.

  In the tower yarder of the present invention, it is preferable that the transporter and the transporter storage base are configured to store the transporter with wires attached to the transporter.

  In the tower yarder according to the present invention, the tower yarder main body is a hole back drum that feeds and winds the wire as the hole back line, a main drum that feeds and winds the wire as the main line, and a slack pulling line. A slack pulling drum for feeding and winding the wire, and the transporter is a hoist line for hoisting and winding the wire, and a hoist driving drum for driving the hoist drum. The transport of the carrier is performed by feeding or winding the hole back line, the main line, and the slack pulling line, and the hoist drum is driven by feeding or winding the main line and the slack pulling line. It is preferably performed by operating the hoist drive drum.

  In the tower yarder of the present invention, the hall back drum, the main drum, and the slack pulling drum are each configured to include a friction drum that generates a friction by winding a wire between two drums installed in parallel, and a surplus drum More preferably, the friction drum is configured such that the diameter of the friction drum is equal among the hole back drum, the main drum, and the slack pulling drum.

  In the tower yarder of the present invention, it is preferable that the tower is configured to be stretchable.

  In the tower yarder of the present invention, it is preferable that the tower yarder body includes a crawler as a traveling means.

  In the tower yarder of the present invention, at least one of the fixing of the tower yarder body, the standing and extending of the tower, the turning of the tower and the carrier storage base, the operation of the hall back drum, the main drum, and the slack pulling drum can be remotely operated by radio. It is preferable to configure as described above.

  In the present invention, when traveling, the carrier is stored in the carrier storage base of the tower yarder body, the wire that is the hall back line is passed through the pulley of the carrier, and the wire that is the main line and the slack pulling line is attached to the carrier. At the start of the gathering work, the tower is erected, the swivel part including the tower and the carrier storage base is swung from the storage position to the gathering position, and the wire that is the hall back line is passed through the pulley of the front pillar. The carrier is then attached to the carrier, and the carrier is suspended from the carrier storage base on the wire, and the gathering work is carried out by running the carrier suspended on the wire stretched between the tower and the front pole. At the end, the transporter is directly lowered onto the transporter storage base, the wire serving as the hall back line is passed through the pulley of the transporter, the main line and the slack In which according to the current material process according Tawayada characterized by containing a wire is Ngurain while attached to the carriage.

  According to the tower yarder and the tower yarder gathering method of the present invention, it is possible to carry out the gathering work even in a narrow gathering place with the minimum necessary personnel and equipment, and the work of attaching / detaching the wire becomes unnecessary. Various excellent effects can be achieved, such as an increase in work efficiency.

It is a conceptual diagram which shows the state at the time of driving | running | working of the tower yarder of embodiment which implements this invention. It is a conceptual diagram which shows the state after the carrier setting of the tower yarder of embodiment which implements this invention. It is a conceptual diagram which shows the state before the carrier suspension of the tower yarder of embodiment which implements this invention. It is a conceptual diagram which shows the state during the material collection operation | work of the tower yarder of embodiment which implements this invention. It is a flowchart which shows the start procedure of the material collection operation | work by the form example of the tower yarder of this invention. It is a flowchart which shows the completion | finish procedure of the material collection operation | work by the form example of the tower yarder of this invention. It is a conceptual diagram which shows the state at the time of the driving | running | working of the conventional tower yarder. It is a conceptual diagram which shows the state after the carrying device setting of the conventional tower yarder. It is a conceptual diagram which shows the state before the carrier suspension of the conventional tower yarder. It is a conceptual diagram which shows the state in the middle of the gathering work of the conventional tower yarder. It is a flowchart which shows the start procedure of the material collection operation | work by the example of a form of the conventional tower yarder. It is a flowchart which shows the completion | finish procedure of the gathering work by the example of a conventional tower yarder.

  Embodiments of the present invention will be described below with reference to the accompanying drawings.

  1 to 4 show an example of a tower yarder according to an embodiment of the present invention. The tower yarder 100 according to the present embodiment performs running skyline overhead wire gathering, and includes a self-propelled tower yarder body 20 and a carrier 21 used in cooperation with the tower yarder body 20. The tower yarder body 20 includes a vehicle body portion 20a and a turning portion 20b. The vehicle body portion 20a includes a crawler 22 as traveling means and a pedestal 23 as loading means. On the gantry 23, the turning part 20b is rotatably installed via the turntable 24. The swivel unit 20b includes a tower 25 that can be expanded and contracted by a hydraulic mechanism, and the tower 25 is installed so as to be undulated between a vertical direction and a horizontal direction. In addition to the tower 25, the revolving part 20b is provided with a hall back drum 26, a main drum 27, and a slack pulling drum 28, which are three drums for feeding and winding the wire that suspends and travels the transporter 21. . The three drums, the hall drum 26, the main drum 27, and the slack pulling drum 28, are a friction drum that generates friction by winding a predetermined number of wires between two drums installed in parallel, and a surplus drum. It is comprised from the storage drum (not shown) which winds up a wire. The diameter of the friction drum is equal among the hole back drum 26, the main drum 27, and the slack pulling drum 28. The tower 25 has three pulleys 29, 30, and 31 around which wires drawn from the three drums are wound.

  Two pulleys 32, 32 for suspending and supporting the transporter 21 with a wire are attached above the transporter 21. The transporter 21 includes a hoist drum 33 and a hoist drive drum 34 that drives the hoist drum 33. In this embodiment, the hoist drive drum 34 is configured as a friction drum that generates a friction by winding a predetermined number of wires between two drums, like the hole back drum 26 and the like. The hoist drum 33 and the hoist drive drum 34 each have a sprocket (not shown), and an endless chain 35 is wound between the sprockets. The operation of the hoist drive drum 34 is transmitted to the hoist drum 33 by the chain 35, and a hoist line 36 for suspending wood is formed by a wire that the hoist drum 33 feeds out.

  The wire fed from the hall back drum 26 is wound around the pulley 29 of the tower 25 and then passed under the pulleys 32, 32 of the transporter 21 to form a hall back line 37.

  The wire fed from the main drum 27 is wound around the pulley 30 of the tower 25 to form the main line 38. The wire forming the main line 38 is wound around the hoist drive drum 34 of the transporter 21 at the tip of the pulley 30, wound around the pulley 31 of the tower 25, and further wound around the slack pulling drum 28. A pulling line 39 is formed. That is, the main line 38 and the slack pulling line 39 are composed of the same wire, and the line from the main drum 27 to the hoist drive drum 34 via the pulley 30 is the main line 38. A line extending from the pulley 31 to the slack pulling drum 28 is a slack pulling line 39.

  The swivel part 20b of the tower yarder body 20 further includes a transporter storage base 40 at a position below the tower 25 and adjacent to the tower 25. The transporter storage base 40 has a structure for supporting the transporter 21 from below. Yes. The point provided with the transporter storage base 40 is the greatest feature of the present invention. By providing the transporter storage base 40, when the tower yarder 100 is stored or traveling, the transporter 21 is connected to the tower yarder main body as shown in FIG. 20 can be stored integrally. At the start of the gathering work, the entire revolving unit 20b including the hall back drum 26, the main drum 27, and the slack pulling drum 28 in addition to the tower 25 and the carrier storage base 40 is in contact with the vehicle body 20a of the tower yarder body 20. The carrier storage base 40 can be turned to a position (gathering position) facing the felling site.

  Further, as described above, the present invention is also provided with three drums, the hall back drum 26, the main drum 27, and the slack pulling drum 28, and the running skyline type overhead wire collecting using the three drums is also significant in the present invention. It is a feature. Usually, the running skyline type overhead wire gathering uses a small transporter that does not have a hoist drum, and the main line also serves as a hoist line. For this reason, a large tension cannot be applied to the wire, and a long gathering distance and a strong tensile force cannot be ensured. In addition, when collecting materials, it is necessary to take down the hoist line after lowering the carrier to the ground.In particular, when collecting horizontally, the carrier is pulled by the wire on the ground and swings back and forth and left and right. Lack. In the present invention, the running skyline method can be collected by the large carrier 21 equipped with the hoist drum 33 by the running skyline method using three drums, which is longer than the conventional running skyline method using a small portable device. Distance, strong tensile force, simple and stable gathering.

  The procedure of running skyline overhead wire gathering by the tower yarder 100 of the present embodiment will be described with reference to FIGS.

  First, the procedure at the start of the gathering operation will be described with reference to FIG. As step S11, the tower yarder main body 20 is caused to travel to the gathering ground. Here, the tower yarder body 20 is in a state in which the carrier 21 is stored in the carrier storage base 40 as shown in FIG. 1, so that it differs from the case of the conventional skyline-type overhead wire collecting (see step S1 in FIG. 11). It is not necessary to transport the transporter 21 separately from the tower yarder body 20. Further, as will be described later, since the transporter 21 is directly suspended from the transporter storage base 40, a loading machine such as an excavator is not required.

  At this time, as shown in FIG. 1, the tower yarder body 20 travels to the gathering ground with the tower 25 lying horizontally in order to keep the center of gravity low, but the tower 25 configured to be stretchable is in a contracted state. Therefore, the overall length of the vehicle body of the tower yarder body 20 is shorter than that of the tower yarder body 1 according to the conventional example (see FIG. 7). For this reason, the tower yarder body 20 according to the present embodiment is easy to travel even on a forest road in a mountain with a narrow and many curve. Further, since the tower yarder body 20 includes the crawler 22 as a traveling means, it has high traveling performance on rough roads and is suitable for traveling on a forest road.

  When arriving at the gathering place, the tower yarder 100 is shifted from the state shown in FIG. 1 to the state shown in FIG. 2 from step S12 to step S14.

  First, as step S12, a center rigger (not shown) for supporting the tower yarder body 20 is installed, and the tower yarder body 20 is fixed to the ground. Here, since the crawler 22 is used as the traveling means in the tower yarder body 20, unlike the conventional example (see step S2 in FIG. 11), it is not necessary to install an outrigger and it can be fixed only by the center rigger.

  When the tower yarder body 20 is fixed, in step S13, the tower 25 is erected vertically and extended to the maximum length. The extended tower 25 is fixed by inserting a fixing pin (not shown) in the middle of the tower 25 so as not to be shrunk due to the load accompanying the collecting work.

  Next, as step S14, the setting before suspension of the transporter 21 is performed. In this step S14, it is only necessary to operate the turntable 24 and to turn the turning part from the storage position to the position (gathering position) where the transporter storage base 40 faces the cutting area.

  That is, since the transporter 21 is transported to the gathering place in a state of being stored in the transporter storage base 40 of the tower yarder body 20, unlike the case of overhead wire gathering by the conventional skyline method (see step S4 in FIG. 11), A transport vehicle for transporting the transporter 21 is not required separately. Further, no matter which direction the tower yada body 20 is stopped, the tower 25 and the carrier 21 can be positioned in the direction toward the felling land by turning the turntable 24. Therefore, it is not necessary to stop the vehicle in the direction in which the rear part of the vehicle is directed, and it is not necessary to lower the transporter 21 behind the tower yarder body 20, so that it is possible to perform the gathering work even in a narrow gathering place.

  Here, in step S4 of the conventional example, it is necessary to draw out the hall line 9 and attach the tip to the carrier 2, and to draw out the skyline 8 and pass it through the pulleys 10 and 10. However, in the tower yarder 100 according to the present embodiment, as described above, the transporter 21 is stored on the transporter storage base 40 mounted on the tower yarder body 20, and therefore, when the tower yarder 100 is moved or stored, wires are transported from the transporter 21. There is no need to remove it. Therefore, as shown in FIG. 1, the wire as the hole back line 37 is wound around the pulley 29 in advance at the time of starting work, and the tip is attached to the carrier 2 while being passed under the pulleys 32, 32 of the carrier 21. ing. Similarly, the wires that are the main line 38 and the slack pulling line 39 are also wound around the pulley 30, the hoist drive drum 34, and the pulley 31 in advance. Therefore, the operator does not need to wrap the wire that is the hole back line 37 around the pulley 29 or pass it under the pulleys 32 and 32, and the wire that is the main line 38 and the slack pulling line 39 is used as the pulley. There is no need to wrap around 30 or 31 or attach to the transporter 21. Upon completion of step S14, the tower yarder 100 is in the state shown in FIG.

  When the setting of the transporter 21 is completed, the hall back line 37 is stretched as step S15. The hall back drum 26 is actuated to feed out the wire as the hall back line 37, the tip of the wire is removed from the transporter 21 and transported manually to the felling site. At the felling site, a pulley 43 is attached to a tree or the like used as the front pole 42. When the tip of the wire as the hole back line 37 is wound around the pulley 43, the tip of the wire is again transported to the gathering ground by human power and attached to the carrier 21. Here, in the present invention, since the running skyline method using the wire having a small diameter is adopted, labor and time required for the stretching of the hole back line 37 can be relatively small. In parallel, a guy line (holding cable) 41 for preventing the fall is stretched over the tower 25, and the tip of the guy line 41 is firmly fixed to the roots of trees around the gathering ground.

  When the transfer of the hall back line 37 is completed, the transporter 21 is suspended on the hall back line 37 in step S16. When the main drum 27 and the slack pulling drum 28 are operated and the main line 38 and the slack pulling line 39 are wound up, tension is applied to the main line 38 and the slack pulling line 39. In this way, while applying tension to the main line 38 and the slack pulling line 39, the hole back drum 26 is operated and the hole back line 37 is wound up. As shown in FIG. 3, when the hole back line 37 is in a tensioned state, tension is applied to the hole back line 37, and the transporter 21 receives the tension of the hole back line 37 on the pulleys 32 and 32 and is lifted upward. . When the hall back line 37 is sufficiently wound up, as shown in FIG. 4, the hall back line 37 is stretched between the pulley 29 of the tower 25 and the pulley 43 attached to the front post 42, and the carrier 21 is placed there. It is suspended through pulleys 32 and 32. Thus, since the transporter 21 is directly suspended from the transporter storage base 40 on the wire that is the hall back line 37, as described above, a loading machine such as an excavator for lowering the transporter 21 to the ground is unnecessary. The above is the start procedure of the gathering work by the tower yarder 100 of the present embodiment.

  When the above procedure is completed, the hall back drum 26 is operated to wind up the hall back line 37, and at the same time, the main drum 27 and the slack pulling drum 28 are operated to feed out the main line 38 and the slack pulling line 39. Then, the transporter 21 travels in a suspended state on the hall back line 37 via pulleys 32 and 32 from the logging area to the logging area. Here, as described above, the three drums of the hall back drum 26, the main drum 27, and the slack pulling drum 28 are each composed of two friction drums and a storage drum. The diameter is constant. In addition, since the friction drums are configured to have the same diameter, by synchronizing the rotation among the three drums, the friction drums have the same length between the hole back line 37, the main line 38, and the slack pulling line 39. The wire can be fed out while maintaining the tension.

  When the transporter 21 arrives at the gathering site, the main drum 27 and the slack pulling drum 28 are operated at the same speed while the hall back drum 26 is stopped. Take up simultaneously. Then, the hoist drive drum 34 of the transporter 21 is rotated, and the rotation is transmitted to the hoist drum 33 through the chain 35, and the hoist drum 33 is operated to feed out the wire as the hoist line 36.

  Thus, in the present embodiment, the hoist drum 33 of the transporter 21 can be driven by operating the main drum 27 and the slack pulling drum 28 provided in the tower yarder body 20. For this reason, it is not necessary to control the hoist drum 33 of the transporter 21 separately from each drum of the tower yarder main body 20, and the operation for collecting materials is simple.

  Further, the hoist drum 33 can be driven to feed the hoist line 36 while tension is applied to the transporter 21 by the hall back line 37, the main line 38, and the slack pulling line 39. There is no need to unload, and it is possible to carry out the gathering work while being suspended on the wire. For this reason, operation is simple compared with the conventional running skyline system, and especially the operation | work at the time of horizontal drawing can be performed stably.

  When the tip of the wire, which is the hoist line 36, is attached by being wrapped around the cut wood or the like to be collected, the main drum 27 and the slack pulling drum 28 are operated again at the same speed, and the main line 38 And the slack pulling line 39 are simultaneously fed. Then, the hoist drum 33 is actuated and the hoist line 36 is wound up, and the wood and the like are suspended and held at a predetermined height.

  Here, since the friction drums constituting the main drum 27 and the slack pulling drum 28 have the same and constant diameter as described above, the rotation is synchronized between the main drum 27 and the slack pulling drum 28 even when the hoist drum 33 is driven. By doing so, the main line 38 and the slack pulling line 39 can be easily wound and fed out while maintaining the tension.

  When wood or the like is suspended and held at the tip of the hoist line 36, the hall back drum 26 is operated to feed out the hall back line 37, and at the same time, the main drum 27 and the slack pulling drum 28 are operated to operate the main line 38 and the slack pulling line. Wind up 39. Then, the transporter 21 travels from the felling site to the lumbering site while hanging so as to drag the wood through the hoist line 36. In this way, the gathering is performed by the tower yarder 100 of the present embodiment.

  Next, the procedure at the end of the gathering work by the tower yarder 100 of this embodiment will be described with reference to FIG. At the end of the work, the transporter 21 is first stored as step S17. The unwinding of the hall back line 37 and the winding of the main line 38 and the slack pulling line 39 are performed at the same time so that the transporter 21 travels to the gathering ground and the transporter 21 is positioned above the transporter storage base 40 of the tower yarder body 20. . Next, the hall back drum 26, the main drum 27, and the slack pulling drum 28 are operated, and the hall back line 37, the main line 38, and the slack pulling line 39 are gradually fed out while maintaining the tension, and the transporter 21 is lowered. At this time, the transporter 21 can be lowered directly onto the transporter storage base 40 by lowering the amount of winding of each wire so that the transporter 21 is directly above the transporter storage base 40. Therefore, unlike the conventional example (see step S7 in FIG. 12), there is no need for the work of lowering the transporter 21 to the ground once and placing it on the transporter storage table 40 using a loading machine.

  Next, after removing the tip of the wire that is the hole back line 37 from the transporter 21, the hole back drum 26 is operated to wind the wire that is the hole back line 37. At this time, as described above, the transporter 21 is transported while being stored in the transporter storage base 40. Therefore, unlike the case of the conventional skyline collecting (see step S8 in FIG. 12), the hall back line 37 is It is not necessary to remove the pulleys 21 and 32 from the pulleys 21, and it is not necessary to remove the main line 38 and the slack pulling line 39 from the transporter 21 and wind them up.

  When the transporter 21 is stored, the tower 25 is stored as step S18. After removing the fixing pin (not shown) of the tower 25, the tower 25 is shortened to the minimum length, the guy line 41 is removed, and the turntable 24 is operated to turn the tower 25 and the carrier storage base 40 from the collecting position to the storage position. The tower 25 is stored in the horizontal direction.

  Finally, in step S19, the equipment is withdrawn. The center rigger (not shown) is removed, and the tower yarder 100 is removed. Here, unlike the case of the conventional skyline-type overhead wire gathering (see step S9 in FIG. 12), it is not necessary to withdraw the transport vehicle and the loading machine.

  Of the above-described steps of collecting work, fixing the tower yarder body 20, raising and extending the tower 25, turning the tower 25 and the container storage 40, operating the hall back drum 26, the main drum 27, and the slack pulling drum 28. Can be configured so that at least one of them can be remotely operated by radio. When all of the above steps are performed by remote operation, there are two personnel who perform the gathering work: one who performs wireless operation of the machine for one tower yarder 100 and the other who performs work such as wire installation at the logging site. Just enough. As described above, according to the tower yarder 100 of the present embodiment, it is possible to perform the collecting work with a minimum number of personnel.

  As described above, according to the tower yarder 100 and the yardering method using the tower yarder 100 according to the present embodiment, the transporter 21 is transported to the yarder in a state of being stored in the transporter storage base 40 of the tower yarder body 20. A transport vehicle for transporting 21 is not required separately. In addition, at the start of the gathering work, the tower 25 and the transporter 21 can be swung to be positioned in the direction toward the felling land regardless of the direction in which the tower yard main body 20 is stopped. It is not necessary to stop the vehicle in the direction in which the rear portion of the vehicle is directed to the felling site, and the carrier 21 does not have to be lowered behind the tower yarder main body 20, so that the gathering work can be performed even in a narrow gathering place. Further, since the transporter 21 is directly suspended from the transporter storage base 40 of the tower yarder body 20, it is not necessary to lower it to the ground, and a loading machine such as an excavator for lowering the transporter 21 to the ground is unnecessary. Moreover, at the end of the gathering work, the transporter 21 is lowered directly onto the transporter storage base 40 by lowering the winding amount of each wire so that the transporter 21 is directly above the transporter storage base 40. Therefore, there is no need for the work of once lowering the transporter 21 to the ground and placing it on the transporter storage base 40.

  Further, in the tower yarder 100 of the present invention, the transporter 21 and the transporter storage base 40 are configured so that the transporter 21 can be stored with the wires attached to the transporter 21, so that the wires are attached at the start or end of the gathering work. There is no need to remove it.

  In the tower yarder 100 of the present invention, the tower yarder body 20 includes a hall back drum 26 that feeds and winds the wire as the hole back line 37 and a main drum 27 that feeds and winds the wire as the main line 38. And a slack pulling drum 28 for feeding and winding the wire, which is a slack pulling line 39, and the carrier 21 is a hoist drum 33 for feeding and winding the wire, which is a hoist line 36 for hanging and supporting wood. And a hoist drive drum 34 for driving the hoist drum 33, and the traveling of the transporter 21 is performed by feeding or winding the hole back line 37, the main line 38, and the slack pulling line 39. Main line 8 and the slack pulling line 39 is operated by operating or hoisting the hoist drive drum 34. Therefore, the running skyline-type wire gathering can be executed by the large transporter 21 having the hoist drum 33, and the conventional running skyline. Compared to the overhead wire gathering method, a long gathering distance and a strong tensile force can be secured, and it is not necessary to lower the transporter 21 at the time of gathering. high. Further, it is not necessary to control the hoist drum 33 of the transporter 21 separately from the drums of the tower yarder body 20, and the operation for collecting materials is simpler than the conventional skyline-type overhead wire collecting. is there.

  Further, in the tower yarder 100 of the present invention, the hall back drum 26, the main drum 27, and the slack pulling drum 28 are friction drums that generate friction by winding a wire between two drums installed in parallel. And a storage drum that winds excess wire, and the friction drum has the same diameter among the hole back drum 26, the main drum 27, and the slack pulling drum 28. By synchronizing the rotation between the drums, it is possible to easily draw out or wind up wires of equal length between the hole back line 37, the main line 38, and the slack pulling line 39 while maintaining the tension.

  Further, in the tower yarder 100 of the present invention, the tower 25 is configured to be extendable and retractable, so that it is easy to travel on a narrow road with many curves.

  In addition, in the tower yarder 100 of the present invention, the tower yarder body 20 is provided with the crawler 22 as a traveling means, so that it has high traveling performance on rough roads and is suitable for traveling on a forest road, and it is not necessary to install an outrigger. The tower yarder body 20 can be fixed only by the center rigger.

  Further, in the tower yarder 100 of the present invention, the tower yarder body 20 is fixed, the tower 25 is raised and extended, the tower 25 and the carrier storage table 40 are swung, and the hall back drum 26, the main drum 27, and the slack pulling drum 28 are operated wirelessly. If it is configured so that it can be operated remotely, it is possible to perform the gathering work with a minimum of personnel.

  Therefore, according to the tower yarder 100 and the yarding method using the tower yarder 100 of the present embodiment, it is possible to carry out the timber collecting work even in a narrow timber collecting area with the minimum necessary personnel and equipment, and to attach / detach the wires. Various excellent effects can be obtained, such that work is unnecessary and work efficiency can be increased.

  It should be noted that the tower yarder and the tower yarder collecting method of the present invention are not limited to the above-described embodiments, and it goes without saying that various changes can be made without departing from the scope of the present invention.

DESCRIPTION OF SYMBOLS 20 Tower Yada main body 20a Car body part 20b Turning part 21 Carriage device 22 Crawler 25 Tower 26 Hall back drum 27 Main drum 28 Slack pulling drum 33 Hoist drum 34 Hoist drive drum 36 Hoist line 37 Hall back line 38 Main line 39 Slack pull line 40 Transporter storage Stand 42 first pillar 100 tower yada

Claims (8)

A self-propelled tower yarder main body having a tower, and a carrier used in cooperation with the tower yarder main body, and felling by suspending and running the carrier over a wire stretched between the tower and a front pole. A tower yarder that collects the collected wood,
The tower yarder main body includes a vehicle body portion having traveling means, and a turning portion that is rotatably installed with respect to the vehicle body portion,
The swivel unit includes the tower, and includes a carrier storage base that can store the transporter at a position below the tower and capable of directly suspending the transporter on a wire.   2. The tower yarder according to claim 1, wherein the transporter and the transporter storage base are configured to store the transporter while a wire is attached to the transporter. The tower yarder main body is a hall back drum that feeds and winds the wire that is the hall back line,
A main drum for feeding and winding the wire as the main line;
A slack pulling drum for feeding and winding the wire, which is a slack pulling line,
The carrier is a hoist drum for feeding and winding a wire, which is a hoist line for hanging and supporting wood,
A hoist drive drum for driving the hoist drum;
The transport of the carrier is performed by feeding or winding the hall back line, main line, slack pulling line,
The tower yarder according to claim 1 or 2, wherein the hoist drum is driven by operating the hoist drive drum by feeding or winding the main line and the slack pulling line. The hall back drum, the main drum, and the slack pulling drum are each a friction drum that generates a friction by winding a wire between two drums installed in parallel, and a storage that winds up excess wire. Composed of drums,
4. The tower yarder according to claim 3, wherein a diameter of the friction drum is equal among the hole back drum, the main drum, and the slack pulling drum.   The tower tower according to any one of claims 1 to 4, wherein the tower is configured to be extendable and contractible.   The tower yarder according to any one of claims 1 to 5, further comprising a crawler as the traveling means.   At least one step of fixing the tower yarder body, standing up and extending the tower, turning the tower and the carrier storage base, and operating the hall back drum, main drum, and slack pulling drum can be remotely operated wirelessly. The tower yarder according to any one of claims 1 to 6. When traveling, store the carrier in the carrier storage base of the tower yarder body, pass the wire as the hall back line through the pulley of the carrier, and run with the wire as the main line and slack pulling line attached to the carrier,
At the start of the gathering work, the tower is erected, the swivel unit including the tower and the carrier storage base is swung from the storage position to the gathering position, and the wire that is the hole back line is passed through the pulley of the front pillar, and then Attach to a carrier, suspend the carrier from the carrier storage stand on the wire,
Gathering work is done by running a carrier suspended on a wire that stretches between the tower and the tip,
At the end of the gathering work, the transporter is directly lowered onto the transporter storage base, the wire as the hole back line is passed through the pulley of the transporter, and the wire as the main line and the slack pulling line is attached to the transporter. It is stored in a state.

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