JP2008100819A - Carrying device, carriage for carrying device and support for carrying device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To perform carrying corresponding to a carrying environment of a carrying object, by easily and surely changing the carrying direction of the carrying object, by enabling a carriage to smoothly and easily get over a bending place of a wire. <P>SOLUTION: This carrying device has a support 30 guiding a first wire Wa and a second wire Wb arranged in a direction changing point for changing the carrying direction of the carrying object and bent by a change in the carrying direction. This support 30 comprises a first sheave 33 guiding the first wire Wa and a second sheave 34 guiding the second wire Wb, which are rotatably arranged in a support body 31. The carriage 10 is provided with a first wire guide mechanism 20 and a second wire guide mechanism 25 unremovably guiding the respective wires Wa and Wb when the carriage 10 moves by getting over the support 30, and is provided with a contact moving mechanism 44 contacting and moving the carriage 10 by guiding in the predetermined positional relationship to the second sheave 34. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a transport device that pulls and transports a transported object in all or a part of a section extending from one point to another point, and in particular, a point where a timber such as a felled tree is cut as the transported object. The present invention relates to a transport device that pulls and transports from a point to a point where material is collected. The present invention also relates to a carriage and a support used for this.

Conventionally, as this type of transfer device, for example, as shown in FIG. 13, a point where material is collected (unloading position) from a point (loading position) where a timber such as a felled tree is cut as a transferred object M 2. Description of the Related Art A transport apparatus that pulls and transports a sheet is known (for example, see JP-A-2002-21107).
This is a conveying device that pulls and conveys a conveyed product M in all or a part of a section extending from one point Ta to another point Tb, and includes a pulley 1 provided on a standing tree at one point Ta, and this pulley 1. The first wire Wa that is wound around and folded and fed and unwound, and unwound when the first wire Wa is unwound and unwound when the first wire Wa is unwound, and the transported object M is locked to the tip Wbs. And a first winch 3a and a second winch 3b that are installed at other points Tb and that feed and unwind the wires Wa and Wb on the base end side of the first wire Wa and the second wire Wb. And a carriage 100 that is moved by a first wire Wa and a second wire Wb.

  The carriage 100 includes a carriage main body 101 to which the distal end Was of the first wire Wa is fixed, and a first pulley that is rotatably provided on the carriage main body 101 and travels in a section extending from the wire drive unit 2 to the pulley 1 of the first wire Wa. 103 and a second pulley 104 that is rotatably provided on the carriage main body 101 and on which the second wire Wb is wound.

  And in all or a part of the section extending to the single point Ta and the other point Tb, the transporting device M made of wood is transferred to the loading position Na (any one of the sections extending to the single point Ta and the other point Tb by this transfer device). Position) to unloading position Nb (generally a position in the vicinity of other point Tb) to collect and collect several timbers (conveyed material M) that have been cut down, The suspended load wire 4 is locked to a hook 5 provided at the tip of the second wire Wb, and in the wire driving machine 2, the first wire Wa is fed out by the first winch 3a and the second wire Wb is rewound by the second winch 3b. . As a result, the carriage 100 is moved to the other point Tb side, the conveyed product M is pulled through the carriage 100, and the conveyed product M is collected at the unloading position Nb. At the unloading position Nb, the bundle of the suspended load wires 4 is released and the conveyed product M is unloaded. Thereafter, in this case, in the wire driving machine 2, the first wire Wa is rewound by the first winch 3a, and the second wire Wb is fed by the second winch 3b. As a result, the carriage 100 is moved to the one-point Ta side and is again stopped at the required loading position Na. In this way, the conveyed product M is sequentially conveyed and collected.

JP 2002-21107 A

By the way, the conventional transport apparatus has an advantage that the installation space is small because the carriage 100 reciprocates along the same transport path, but on the other hand, the path of the first wire Wa and the second wire Wb. When it is going to change the conveyance direction of the conveyed product M by bending, it became difficult to cope and there was a problem that it could not cope with various conveyance environments.
That is, when the transported material M is, for example, timber harvested in a mountain forest, depending on the logging environment of the forest, there are many cases where it cannot always be transported along a straight path from a logging point to a logging point. In such a case, as shown in FIG. 14, conventionally, the wire W is passed over a loop via a pulley 105 provided on a standing tree around the felling, and the direction is changed by the pulley 105 to thereby change the wire driving machine. 106 circulates and moves the wire W, and collects the wood while appropriately changing the conveyance direction (for example, see JP-A-2005-40050). If this material gathering method is to be applied to the above-mentioned conventional type conveying device, a pulley is provided at the direction changing portion and the path of the first wire Wa and the second wire Wb is bent. 100 has to get over the pulley, and in this case, the first wire Wa and the second wire Wb are separated from the pulley. Therefore, the carriage 100 is easily dropped from the pulley, and the carriage 100 is hardly moved. There is a problem that this method cannot be applied as it is.

  The present invention has been made in view of the above-described problems, and enables the carriage to easily and easily get over the bent portion of the wire, and easily and reliably change the conveyance direction of the conveyed object. It is an object of the present invention to provide a transport apparatus that can perform transport corresponding to the transport environment of transported objects. It is another object of the present invention to provide a transport device carriage and a transport device support used in the transport device.

In order to achieve such an object, the transport device of the present invention is a transport device that pulls and transports a transported object in all or part of a section extending from one point to another point, and is provided at the one point. A pulley, a first wire wound around the pulley, folded back and unwound and unwound, and unwound when the first wire is unwound and unwound when the first wire is unwound, and the transported object is engaged at the tip. A second wire to be stopped, a wire driving machine installed at the other point to feed and unwind each wire on the proximal end side of the first wire and the second wire, and the first wire and the second wire A carriage that is moved by the carriage body, the carriage being fixed to the carriage main body to which the tip of the first wire is fixed, and the carriage being rotatably provided on the first wire. A first pulley which runs a section ranging from Ya of the wire drive motor to the pulley, the conveyor apparatus constructed and a second sheave rotatably mounted the second wire is wound on the carriage body,
A support that guides the first wire and the second wire that are provided in a support member installed in a direction change point where the transport direction of the transported object is changed in the middle of the section and that is bent by the change in the transport direction. With
A support main body suspended from the support member, a first sheave rotatably provided on the support main body for guiding the first wire, and the support main body coaxially and freely rotatable with the first sheave. And a second sheave that guides the second wire.
When the carriage moves over the first sheave and the second sheave of the support, the first wire and the second wire that are separated from the first sheave and the second sheave cannot be detached from the carriage. Provided with a first wire guide mechanism and a second wire guide mechanism for guiding,
When the carriage moves over the first sheave and the second sheave of the support, a contact moving mechanism is provided for guiding and moving the carriage in a predetermined positional relationship with respect to the second sheave. .

Thereby, when installing this conveyance apparatus, a pulley is provided in one point and a wire drive machine is installed in another point. Moreover, a support is installed in the direction change point which changes the conveyance direction of a conveyed product in the middle of the area over one point and another point. Then, the wire is stretched and the carriage is mounted.
In this state, in all or part of the section extending from one point to another point, for example, the transported object is moved from any position (loading position) on one side to another position (unloading position) on the other point. When transporting, the transported object is locked to the tip of the second wire, and in the wire driving machine, the first wire is fed out by the first winch and the second wire is rewound by the second winch. As a result, the carriage is moved to the other point side, the conveyed product is pulled through the carriage, and the conveyed product is collected at the unloading position. At the unloading position, the lock on the second wire is released and the conveyed product is unloaded. Then, this time, in the wire drive machine, the first wire is rewound by the first winch and the second wire is fed by the second winch. As a result, the carriage is moved to one point side and again stopped at the required loading position. In this way, the conveyed items are sequentially conveyed and collected.

  In this transport, a support is installed at a direction change point in the middle of a section extending from one point to another point, and the carriage moves over the support, and the transport direction of the transported object is changed by overcoming the support. The In this case, the first wire and the second wire are separated from the first sheave and the second sheave, but are guided by the first wire guide mechanism and the second wire guide mechanism so as not to be detached from the carriage, and are in contact with each other. Since the carriage is guided and moved in contact with the second sheave by the moving mechanism, the carriage smoothly passes through the support. Therefore, when a pulley that simply bends the wire is provided, the first wire and the second wire are separated from the pulley and the carriage moves over the pulley, so that the carriage easily falls off the pulley and the carriage moves. Although it becomes almost impossible, in the present invention, such a situation is prevented and the carriage passes smoothly through the support. Therefore, the conveyance direction of a conveyed product can be changed easily and reliably, and conveyance corresponding to the conveyance environment of a conveyed product can be performed.

  In particular, the first sheave rotates in a direction opposite to the moving direction of the carriage due to the traveling direction of the first wire, that is, rotates in a direction that becomes resistance to the carriage, while the second sheave Due to the traveling direction of the second wire, it rotates in the reverse direction to the first sheave and rotates in the same direction as the carriage movement direction. However, the contact movement mechanism causes the carriage to rotate mainly in the carriage movement direction. Since the two sheaves are guided and moved in a predetermined positional relationship, the carriage posture is maintained and the carriage is smoothly advanced. Further, since the carriage passes through the second sheave in a predetermined positional relationship, after the carriage passes through the support, each wire again comes into contact with a normal position on each sheave and is smoothly guided. become.

If necessary, a plurality of sets of the first sheave and the second sheave are arranged in a line along the wire unwinding / unwinding direction.
As a result, a plurality of sets of the first sheave and the second sheave are provided. In one case, the direction change angle must be changed by the one set of the first sheave and the second sheave. In the present invention, the wire is linearly formed between the first sheave and second sheave group at the frontmost position in the carriage movement direction and the first sheave and second sheave group at the rearmost position in the carriage movement direction. Therefore, the first sheave and second sheave group located at the forefront of the carriage movement direction and the first sheave and second sheave group located at the rearmost position in the carriage movement direction, respectively. Requires only half of the overall direction change angle, so there is no excessive force acting on the carriage and support, so that the direction of the carriage can be changed smoothly. Kill as to become.

Further, if necessary, a support rod for rotatably supporting each set of the first sheave and the second sheave is provided, and the support rod is parallel to the rotation axis of the first sheave and the second sheave on the support body. It is configured to be swingable around a swing shaft.
As a result, the first sheave and second sheave group swings through the support rod, and this swinging causes the carriage to enter the first sheave and second sheave group at the forefront of the carriage movement direction. The angle can be reduced, and the exit angle of exiting from the first sheave and second sheave pair at the rearmost position in the movement direction of the carriage can be reduced, so that the first sheave and the second sheave of the carriage can be reduced. It is possible to smoothly enter and leave the set, and to further smoothly change the direction of the carriage.

Further, if necessary, the outer diameter of the second sheave is formed larger than that of the first sheave. When the carriage moves over the first sheave and the second sheave, the carriage body moves relative to the carriage body. In this configuration, a rolling flange is provided.
Accordingly, the first sheave rotates in the direction opposite to the moving direction of the carriage due to the traveling direction of the first wire, that is, rotates in a direction that becomes resistance to the carriage, while the second sheave The second wire rotates in the opposite direction to the first sheave due to the traveling direction of the second wire, and rotates in the same direction as the carriage movement direction. In this case, the carriage body mainly contacts the flange of the second sheave that rotates in the moving direction of the carriage, and does not contact the first sheave. Posture is maintained.

Furthermore, if necessary, the first wire guide mechanism and the second wire guide mechanism are configured to include a pair of abutting members that can face each other across the wires and abut against the wires. . Thereby, the situation where the first wire and the second wire separated from the first sheave and the second sheave are separated from the carriage by the contact member is prevented.
In this case, it is effective that the pair of contact members is composed of a pair of rotatable rollers having an axis orthogonal to the axis of the first pulley and the second pulley. Since the pair of rollers rolls while guiding the wire, the carriage can be moved without difficulty.

  In addition, if necessary, the first wire guide mechanism includes a support roller for supporting the wire, and the first wire guide mechanism is opposed to each other with the first wire interposed therebetween so that the wire can contact and the axis of the first pulley. And a pair of rotatable rollers having an axis orthogonal to the pair, and a pair of the rollers is provided in the forward and backward directions of the first wire of the first pulley. . Thus, the first wire is guided by being surrounded by the two sets of rollers of the first wire guide mechanism, the pair of support rollers, and the first pulley. Therefore, the first wire separated from the first sheave is guided so as not to be detached from the carriage. In particular, the first wire travels in the direction opposite to the carriage moving direction, but the pair of rollers rolls while guiding the front and rear in the traveling direction, and the support rollers support and roll. The carriage is moved.

Further, if necessary, the contact movement mechanism is provided on a circumferential groove formed on the outer periphery of the second sheave to guide the second wire, and formed on the carriage body of the carriage so as to protrude into the circumferential groove of the second sheave. And a rail member to be engaged. The rail member formed on the carriage body of the carriage is engaged with the circumferential groove formed on the outer periphery of the second sheave, and the second sheave rolls the rail member. Is done.
In this case, it is effective to use a roller that engages with the circumferential groove instead of the rail member. Since the roller also rolls, the carriage can be moved more easily.

Furthermore, if necessary, the support body is provided with a pressing roller that presses the wire in elastic contact with the outer periphery of the first sheave and the second sheave. Since the first wire and the second wire are pressed by the pressing roller that elastically contacts the outer periphery of the first sheave and the second sheave, separation from the first sheave and the upper second sheave is suppressed. Therefore, the first wire and the second wire are smoothly unwound and rewound to pull the carriage and the conveyed product.
Moreover, it is set as the structure which suspends the said support by the 2 or more cable body fixed to the said supporting member as needed. Thereby, when suspending with one cable body, the rotation axis of the 1st sheave and the 2nd sheave may come along a substantially horizontal direction when each wire is not pulled. When pulling the wire, the wire may be pulled easily in the direction of the rotation axis of the sheave, but it is likely to come off, but since it is suspended by two or more ropes, the first sheave and the second sheave when each wire is not pulled It is possible to position the rotating shaft at a certain angle so that the rotating shaft does not follow the horizontal direction, that is, the support can be held so that the rotating shaft stands up. For this reason, when the wire is pulled, the wire is pulled in a direction intersecting the rotation axis of the sheave, so that it is difficult to be detached from the sheave and the holding of the wire can be stabilized.

  And in order to achieve the said objective, this invention provides the carriage for conveyance apparatuses used for the above-mentioned conveyance apparatus, and the support for conveyance apparatuses. The same operations and effects as described above are achieved.

  According to the transfer device, the carriage for the transfer device, and the support for the transfer device of the present invention, when the transfer object is transferred in a section extending from one point to another point, the carriage moves over the support, and the transfer object is moved by the transfer. However, even if the first wire and the second wire are separated from the first sheave and the second sheave, they cannot be separated from the carriage by the first wire guide mechanism and the second wire guide mechanism, respectively. Since the carriage is guided and moved in contact with the second sheave in a predetermined positional relationship by the contact movement mechanism, the carriage can smoothly pass through the support. Therefore, the conveyance direction of a conveyed product can be changed easily and reliably, and conveyance corresponding to the conveyance environment of a conveyed product can be performed.

Hereinafter, a transport device according to an embodiment of the present invention, a transport device carriage, and a transport device support used in the embodiment will be described in detail with reference to the accompanying drawings. In addition, the same code | symbol is attached | subjected and demonstrated to the same thing as the above.
The transport apparatus according to the embodiment of the present invention shown in FIG. 1 to FIG. 11 is an apparatus for transporting a transported object M made of wood cut in a forest as shown in FIG. It is a transport device that pulls and transports the transported object M in all or part of the section extending over Tb.
The transport device includes a pulley 1 that is suspended from a standing tree at a single point Ta, a first wire Wa that is wound around the pulley 1 and folded back and unwound, and a first wire Wa that is fed out. The second wire Wb that is unwound at the time and is unwound when the first wire Wa is unwound and the transported object M is locked at the tip Wbs, and the base of the first wire Wa and the second wire Wb installed at another point Tb. And a wire drive machine 2 for feeding and unwinding each wire on the end side.

  The wire drive machine 2 is composed of a winch-mounted hydraulic excavator, and a boom 7 is swingably provided on a vehicle body 6 having a caterpillar for traveling, and an arm 8 having a work machine 8a at the tip of the boom 7 is swung. A first winch 3a and a second winch 3b are mounted on the vehicle body 6 so as to feed and unwind each wire on the base end side of the first wire Wa and the second wire Wb. The pulley device 9 is configured to support the wires Wa and Wb from 3a and 3b. And when conveying the conveyed product M, the pulley apparatus 9 is positioned to a predetermined height position in the state which earth | grounded the working machine 8a of the front-end | tip of the arm 8. FIG.

  In addition, as shown in FIGS. 1 to 11, the apparatus has a carriage 10 that is moved by the first wire Wa and the second wire Wb, and the conveyance direction of the conveyed product M is changed in the middle of the above section. And a support 30 that guides the first wire Wa and the second wire Wb that are bent by a change in the transport direction.

  As shown in FIGS. 1 to 4, the carriage 10 includes a carriage main body 11 formed of a metal plate 12 to which the tip Was of the first wire Wa is fixed, and a first wire rotatably provided on the carriage main body 11. A first pulley 13 that travels in a section extending from the wire drive machine 2 of the Wa to the pulley 1 and a second pulley 14 that is rotatably provided on the carriage body 11 and on which the second wire Wb is wound are provided. The first pulley 13 and the second pulley 14 are provided with the rotation shafts 13a and 14a in parallel between the plate members 12 that constitute the carriage body 11 and oppose each other with the wires sandwiched from both sides. A bolt 15a around which the distal end Was of the first wire Wa is wound in order to fix the distal end Was of the first wire Wa to the end of the carriage body 11 on the second pulley 14 side and the pulley 1 side, and the bolt A wire fixing portion 15 including a nut 15b for fixing the 15a to the carriage body 11 is provided. Further, as shown in FIG. 4, the carriage body 11 is provided with a stopper 16 that prevents the second wire Wb from coming off below the wire fixing portion 15.

  The carriage 10 also includes a first wire Wa and a first wire that are separated from the first sheave 33 and the second sheave 34 when the carriage 10 moves over a first sheave 33 and a second sheave 34 described later of the support 30. A first wire guide mechanism 20 and a second wire guide mechanism 25 are provided to guide the two wires Wb from the carriage 10 so as not to be detached.

  The first wire guide mechanism 20 includes a pair of abutting members 21 provided on the carriage body 11 and facing each other with the first wire Wa interposed therebetween so that the first wire Wa can abut. Specifically, the pair of abutting members 21 is composed of a pair of rotatable rollers 22 having an axis perpendicular to the axes of the first pulley 13 and the second pulley 14. Two sets (22A, 22B) of the sets of rollers 22 are provided, and each set (22A, 22B) is provided before and after the first wire Wa of the first pulley 13 in the extending and unwinding direction, respectively.

Further, the first wire guide mechanism 20 includes a support roller 23 provided on the carriage body 11 and supporting the first wire Wa. The support roller 23 is provided on the axis side of the second pulley 14 with respect to the axis of the first pulley 13 so as to face the first pulley 13, and the unwinding and rewinding direction of the first wire Wa of the first pulley 13 is provided. A pair is provided at the front and rear.
That is, the first wire Wa is guided by being surrounded by the two pairs of rollers 22 (22A, 22B) of the first wire guide mechanism 20, the pair of support rollers 23, and the first pulley 13.

The second wire guide mechanism 25 includes a pair of abutting members 26 provided on the carriage body 11 and facing each other across the second wire Wb so that the wires can abut. Specifically, the pair of abutting members 26 are constituted by the plate material 12 that constitutes the carriage body 11 and is provided with the second pulley 14.
The second wire guide mechanism 25 includes a pressing roller 27 (FIG. 4) provided on the carriage body 11 and pressing the second wire Wb. The pressing roller 27 is provided on the side of the wire pulley 2 while being provided on the side of the first pulley 13 with respect to the axis of the second pulley 14 and facing the second pulley 14.
That is, the second wire Wb is guided by being surrounded by the set of contact members 26 (plate material 12) of the second wire guide mechanism 25, the pressing roller 27, and the second pulley 14.

As shown in FIGS. 1, 2, and 5 to 8, the support 30 includes a support body 31 that is suspended from a support member S (FIG. 10 and FIG. 11) having one end made of standing trees, and the support body 31. A first sheave 33 that is rotatably provided to guide the first wire Wa, and a second sheave 34 that is provided coaxially with the first sheave 33 and is rotatably provided to guide the second wire Wb on the support body 31. Has been.
As shown in FIG. 8, each sheave 33, 34 includes a bearing portion 36 having a bearing 35 that is rotatably supported by the rotating shaft 32, and a cylindrical portion 38 that is fixed to the bearing portion 36 via a rib 37. A circumferential groove 39 into which the wires Wa and Wb are engaged is formed on the substantially central outer periphery of the cylindrical portion 38, and the wires Wa and Wb are guided along the circumferential groove 39.

As shown in FIG. 8, the outer periphery of the cylindrical portion 38 of the first sheave 33 on the second sheave 34 side is smaller than the inner diameter of the cylindrical portion 38 of the second sheave 34 on the first sheave 33 side. The second sheave 34 side of the cylindrical portion 38 of the first sheave 33 is provided so as to enter the first sheave 33 side of the cylindrical portion 38 of the second sheave 34.
Further, the outer circumference of the second sheave 34 is formed to have a larger diameter than the first sheave 33, and when the carriage 10 moves over the first sheave 33 and the second sheave 34, it moves relative to the carriage body 11. A flange 40 is provided.

Furthermore, a plurality of sets of the first sheave 33 and the second sheave 34 are arranged along the feeding and unwinding direction of the wires Wa and Wb. In the embodiment, two sets (30A, 30B) are arranged.
Specifically, as shown in FIGS. 1, 2, and 7 to 9, each set (30 </ b> A, 30 </ b> B) of the first sheave 33 and the second sheave 34 includes a pair of support rods 41 provided on both sides in the axial direction. Thus, the rotation shaft 32 is supported so as to be rotatable. The support rod 41 is provided on the support body 31 so as to be swingable about a swing shaft 42 parallel to the rotation shaft 32 of the first sheave 33 and the second sheave 34.

In the present embodiment, as shown in FIGS. 1, 3, and 6, when the carriage 10 moves over the first sheave 33 and the second sheave 34 of the support 30, the carriage 10 is moved to the second sheave 34. Is provided with a contact movement mechanism 44 that guides to a predetermined positional relationship, that is, controls the wheel removal and moves the contact.
Specifically, the contact moving mechanism 44 includes the circumferential groove 39 formed on the outer periphery of the second sheave 34 and guided by the second wire Wb, and the circumferential groove of the second sheave 34 that is formed to protrude from the carriage body 11 of the carriage 10. 39 and a rail member 45 engaged with 39. The rail members 45 are provided on the left and right, respectively, and either one of the rail members 45 can be engaged with the circumferential groove 39 of the second sheave 34 in accordance with the mounting direction of the support 30. That is, the carriage 10 is formed symmetrically.

Further, the support body 31 includes a plate-like portion 60 that is between the sheaves 33 and 34 and has a surface orthogonal to the surface including the rotation shaft 32 of each sheave. A plurality of fastening holes 61 are formed in a row across the end to which the cords Sa (ropes) fastened to the support member S are fastened. As shown in FIG. 10A, the support 30 is suspended by two or more cords Sa (two in the embodiment) secured to the support member S. One cord body Sa is fastened to the fastening hole 61 (a) at one end of the plate-like portion 60, and the other cord body Sa is fastened to the fastening hole 61 (b) at the other end of the plate-like portion 60. It is worn. The two cord bodies Sa are positioned at an angle so that the rotation shafts 32 of the first sheave 33 and the second sheave 34 do not follow the horizontal direction when the wires Wa and Wb are not pulled. The support 30 is held so that the rotating shaft 32 stands up.
Further, as shown in FIGS. 5 and 7, the support main body 31 is provided with a pressing roller 50 that elastically contacts the outer periphery of the first sheave 33 and the second sheave 34 to press the wires Wa and Wb. The pressing roller 50 is provided with two pairs (50A, 50B) corresponding to each set of the first sheave 33 and the second sheave 34. Each set (50A, 50B) of the pressing rollers 50 is supported at the tips of a pair of support arms 51 so as to be rotatable about a rotation shaft 52, respectively. The base end of each support arm 51 is provided on the support body 31 so as to be swingable about a swing shaft 53 parallel to the rotation shaft 32 of the first sheave 33 and the second sheave 34. Further, the support arms 51 are coupled to each other by a coil spring 54 (FIG. 7) and are biased toward each other. By the biasing force of the coil spring 54, each pressing roller 50 has the first sheave 33 and the first sheave 33. Elastically contact the outer periphery of the two sheave 34 to hold the wires Wa and Wb.

Therefore, when the transport device according to the embodiment of the present invention is used, it is performed as follows. As shown in FIG. 11, for example, when towing and transporting a lumber such as a tree felled as a transported object M from a point where it was cut (loading position Na) to a point where the material is collected (unloading position Nb) explain.
First, when installing this apparatus, as shown in FIG. 11, the pulley 1 is provided in the standing tree of one point Ta, and the wire drive machine 2 is installed in the other point Tb. Further, as shown in FIGS. 10 and 11, a support 30 is installed at a direction change point Tc in the middle of a section extending from one point Ta to another point Tb and changing the conveyance direction of the conveyed product M. A plurality of supports 30 are prepared and installed at each direction change point Tc. At the time of installation, one end 31a of the support main body 31 is suspended from a support member S made of standing trees via two cords Sa so that one end of the support main body 31 can freely swing.
The wires Wa and Wb are stretched through the required portions of the pulley 1, the carriage 10, and the support 30, and the tip Was of the first wire Wa is fixed to the wire fixing portion 15 of the carriage 10. 13 is locked to the first wire Wa so that it can travel in the section from the wire drive 2 to the pulley 1.

  In this state, in all or a part of the section extending from one point Ta to another point Tb, the transported object M is moved from one position on the one point Ta side (loading position Na) to another position on the other point Tb side. Transport to (unloading position Nb). First, at the loading position Na, the conveyed product M is locked to the tip Wbs of the second wire Wb. In this case, for example, several felled timbers (conveyed material M) are bound by the hanging wire 4 (FIG. 11), and the hanging wire 4 is locked to the tip Wbs of the second wire Wb.

Next, the wire driving machine 2 is driven, the first wire Wa is fed out by the first winch 3a, and the second wire Wb is rewound by the second winch 3b. Thereby, the carriage 10 is moved to the other point Tb side, and the conveyed product M is pulled through the carriage 10, and the conveyed product M is collected at the unloading position Nb.
In this case, as shown in FIG. 10 (a), the support 30 uses two cords Sa to rotate the first sheave 33 and the second sheave 34 in the horizontal direction when the wires Wa and Wb are not pulled. Since the support 30 is held so that the rotating shaft 32 stands up, the single rope is shown in FIG. 10 (b). When suspended by Sa, the rotating shafts 32 of the first sheave 33 and the second sheave 34 may become substantially horizontal when the wires Wa and Wb are not pulled. When pulling Wa and Wb, the wires Wa and Wb may be easily pulled off in the direction of the rotating shaft 32 of the sheave 33. However, as shown in FIG. Do you have support 30? When the wires Wa and Wb are pulled, the wires Wa and Wb are pulled in the direction intersecting the rotation shaft 32 of the sheaves 33 and 34. Therefore, the wires Wa and Wb are not easily detached from the sheaves 33 and 34. The holding can be stabilized.
In this case, the first wire Wa and the second wire Wb are guided by being engaged with the circumferential grooves 39 of the first sheave 33 and the second sheave 34 of the support 30. Further, since the first wire Wa and the second wire Wb are pressed by the pressing roller 50 that elastically contacts the outer periphery of the first sheave 33 and the second sheave 34, the separation from the first sheave 33 and the second sheave 34 is suppressed. The Therefore, the first wire Wa and the second wire Wb are smoothly drawn out and rewound, and the carriage 10 and the conveyed product M are pulled.

  In the conveyance of the conveyed product M, a support 30 is installed at a direction change point Tc in the middle of a section extending from one point Ta to another point Tb, and the carriage 10 is pressed as shown in FIG. The roller 50 is pushed up against the urging force to move over the support 30, and the transfer direction of the transfer object M is changed by the transfer. In this case, the first wire Wa and the second wire Wb are separated from the first sheave 33 and the second sheave 34, but cannot be detached from the carriage 10 by the first wire guide mechanism 20 and the second wire guide mechanism 25, respectively. Since the carriage 10 is guided and moved in contact with the second sheave 34 by the contact moving mechanism 44, the carriage 10 smoothly passes through the support 30. Therefore, in the case where a pulley that simply bends the wire is provided, the first wire Wa and the second wire Wb are separated from the pulley and the carriage 10 gets over the pulley, so that the carriage 10 easily falls off the pulley. Although the movement of the carriage 10 becomes almost impossible, in this embodiment, such a situation is prevented, and the carriage 10 passes through the support 30 smoothly. Therefore, the conveyance direction of the conveyed product M can be changed easily and reliably, and the conveyance corresponding to the conveyance environment of the conveyed product M can be performed.

  In particular, the first sheave 33 rotates in a direction opposite to the moving direction of the carriage 10 due to the traveling direction of the first wire Wa, that is, rotates in a direction that becomes resistance to the carriage 10, while the first sheave 33 rotates. The second sheave 34 rotates in the reverse direction to the first sheave 33 and rotates in the same direction as the carriage 10 due to the traveling direction of the second wire Wb, but the carriage 10 is mainly driven by the contact moving mechanism 44. Since the second sheave 34 that rotates in the moving direction of the carriage 10 is guided and brought into contact with the second sheave 34 in a predetermined positional relationship, the posture of the carriage 10 is maintained and the carriage 10 advances smoothly. In addition, since the carriage 10 passes through the second sheave 34 in a predetermined positional relationship, after the carriage 10 passes through the support 30, the wires Wa and Wb are again in regular positions on the sheaves 33 and 34. It comes into contact with and is guided smoothly.

Specifically, the first wire Wa is guided by being surrounded by the two pairs of rollers 22 (22A, 22B) of the first wire guide mechanism 20, the pair of support rollers 23, and the first pulley 13, and the second wire Wb. Is guided by being surrounded by the set of abutting members 26 of the second wire guide mechanism 25, the pressing roller 27 and the second pulley 14. Therefore, the first wire Wa and the second wire Wb separated from the first sheave 33 and the second sheave 34 are held so as not to be separated from the carriage 10. In particular, the first wire Wa travels in the direction opposite to the moving direction of the carriage 10, but the pair of rollers 22 (22A, 22B) rolls while being guided before and after the traveling direction, and is supported by the support roller 23. Thus, the carriage 10 is moved without difficulty.
Further, in the contact moving mechanism 44, a rail member 45 protruding from the carriage body 11 of the carriage 10 is engaged with a circumferential groove 39 formed on the outer periphery of the second sheave 34, and the second sheave 34 is connected to the rail member. 45, the carriage 10 can be moved without difficulty in this point.

  In addition, when the carriage 10 moves over the support 30, two sets (30A, 30B) of the first sheave 33 and the second sheave 34 are provided. It enters the set (30A) of the first sheave 33 and the second sheave 34 and exits from the set (30B) of the first sheave 33 and the second sheave 34 on the other point Tb side. Therefore, as shown in FIG. 9, when there is one set of the first sheave 33 and the second sheave 34, the direction change angle is changed by the one set of the first sheave 33 and the second sheave 34. In the embodiment, the first sheave 33 and the second sheave 34 (30A) in the foremost position in the movement direction of the carriage 10, and the first sheave 33 in the last position in the movement direction of the carriage 10 and Since the wires Wa and Wb can be linearly formed between the second sheave 34 and the second sheave 34 (30B), the first sheave 33 and the second sheave 34 (30A) at the forefront of the carriage 10 in the moving direction. ) And the set (30B) of the first sheave 33 and the second sheave 34 at the rearmost position in the moving direction of the carriage 10 are each half of the entire direction change angle, For, since the excessive force to the carriage 10 and support 30 is not applied, it only becomes possible to smoothly perform the direction change of the carriage 10.

  Further, when the carriage 10 moves over the support 30, the set of the first sheave 33 and the second sheave 34 swings via the support rod 41. Therefore, by this swinging, the approach angle of the carriage 10 with respect to the set (30A) of the first sheave 33 and the second sheave 34 that is in the forefront in the movement direction of the carriage 10 can be made shallow, and the movement direction of the carriage 10 The exit angle of exiting from the first sheave 33 and second sheave 34 set (30B) at the rearmost position can be made shallower, so that the carriage 10 enters and exits the first sheave 33 and second sheave 34 set. Thus, the direction of the carriage 10 can be changed more smoothly.

  Furthermore, as described above, the first sheave 33 rotates in the direction opposite to the moving direction of the carriage 10 due to the traveling direction of the first wire Wa, that is, the direction in which the first sheave 33 becomes resistant to the carriage 10. On the other hand, the second sheave 34 rotates in the reverse direction to the first sheave 33 and rotates in the same direction as the moving direction of the carriage 10 due to the traveling direction of the second wire Wb. A flange 40 is formed on the outer periphery so as to be larger in diameter than the first sheave 33 and rolls relative to the carriage body 11 when the carriage 10 moves over the first sheave 33 and the second sheave 34. Therefore, the carriage body 11 mainly comes into contact with the flange 40 of the second sheave 34 that rotates in the moving direction of the carriage 10 and does not come into contact with the first sheave 33. Because the resistance is very small, the attitude of the carriage 10 is held with the progress of the carriage 10 can be smoothly performed.

  In this way, the conveyed product M is pulled and conveyed via the carriage 10. At the unloading position Nb, the engagement with respect to the second wire Wb is released and the conveyed product M is unloaded. Then, this time, in the wire drive machine 2, the first wire Wa is rewound by the first winch 3a and the second wire Wb is fed out by the second winch 3b. As a result, the carriage 10 is moved to the one-point Ta side and is again stopped at the required loading position Na. Also in this case, as described above, the carriage 10 can be changed in direction through each support 30 without difficulty. In this way, the conveyed product M is sequentially conveyed and collected.

The transported object M may be transported not only from the one point Ta side to the other point Tb side but also from the other point Tb side to the one point Ta side, and may be changed as appropriate.
Also, as shown in FIG. 12, the tip of the second wire Wb is fixed to the wire fixing portion 15 by reversing the direction of the carriage 10, the first wire Wa is wound around the second pulley 14, and the tip Was is placed on the tip Was. The transported object M can be locked and the transport direction can be reversed, that is, transported from the other point Tb side toward the one point Ta side.
In the above-described embodiment, the contact moving mechanism 44 is provided with the rail member 45 that engages with the circumferential groove 39. You may comprise with the roller engaged in the groove | channel 39, and may change suitably. Further, the contact member 26 of the second wire guide mechanism 25 is configured by the plate material 12 of the carriage body 11, but is not necessarily limited thereto, and similarly to the first wire guide mechanism 20, the first pulley 13 is used. And you may comprise by the group of a pair of rotatable rollers which have an axis orthogonal to the axis of the 2nd pulley 14, and it does not interfere, changing suitably. In the above embodiment, the timber harvested as the transport object M has been described as an example. However, the present invention is not necessarily limited to this, and any transport object may be used.

It is a perspective view which shows the carriage and support (a pressure roller is not shown) of the conveying apparatus which concerns on embodiment of this invention in the state when a carriage gets over a support. It is a perspective view which shows the carriage and support (pressing roller not shown) of the conveying apparatus which concerns on embodiment of this invention in another state when a carriage gets over a support. It is a front view which shows the carriage of the conveying apparatus which concerns on embodiment of this invention. It is side surface sectional drawing which shows the carriage of the conveying apparatus which concerns on embodiment of this invention. It is a front view which shows the support of the conveying apparatus which concerns on embodiment of this invention. It is a front view which shows the support (pressing roller not shown) of the conveying apparatus which concerns on embodiment of this invention in the state at the time of a carriage getting over a support. It is a top view which shows the support of the conveying apparatus which concerns on embodiment of this invention. It is side surface sectional drawing which shows the support of the conveying apparatus which concerns on embodiment of this invention. It is a top view which shows the carriage and support of the conveying apparatus which concerns on embodiment of this invention in the state at the time of a carriage getting over a support. It is a figure which shows the support state with respect to the support member of the support in the conveying apparatus which concerns on embodiment of this invention, (a) is a figure which shows the effect | action, (b) is a figure which shows a comparative example. It is a perspective view which shows the example of installation of the conveying apparatus which concerns on embodiment of this invention. It is side surface sectional drawing of the carriage which shows another usage of the conveying apparatus which concerns on embodiment of this invention. It is a perspective view which shows the example of installation of the conventional conveying apparatus. It is a figure which shows the example of another conventional conveying method.

Explanation of symbols

M Conveyed object Ta One point Tb Other point Tc Direction change point 1 Pulley Wa First wire Was Tip Wb Second wire Wbs Tip 2 Wire driver 3a First winch 3b Second winch 10 Carriage 11 Carriage body 12 Plate member 13 First pulley 14 Second pulley 15 Wire fixing portion 16 Stopper 20 First wire guide mechanism 21 Contact member 22 Roller 22A, 22B Roller set 23 Support roller 25 Second wire guide mechanism 26 Contact member 27 Pressing roller 30 Support 30A, 30B First 1 sheave and second sheave set 31 Support body 32 Rotating shaft 33 First sheave 34 Second sheave 39 Circumferential groove 40 Flange 41 Support rod 42 Oscillating shaft 44 Contact moving mechanism 45 Rail member 50 Pressing rollers 50A, 50B Assembly 51 Support arm 52 Rotating shaft 53 Oscillating shaft 54 Coil spring S Support member Sa Cable body 60 Plate-like part 61 Fastening hole

Claims (13)

A transporting device that pulls and transports a transported object in all or part of a section extending from one point to another point,
A pulley provided at the one point, a first wire wound around the pulley, folded back, and unwound and unwound, and unwound when the first wire is unwound and unwound when the first wire is unwound. And a wire drive machine that locks a conveyed product at the tip, a wire drive machine that is installed at the other point and that feeds and unwinds each wire on the base end side of the first wire and the second wire, and A carriage moved by the first wire and the second wire,
A carriage body on which the tip of the first wire is fixed; a first pulley that is rotatably provided on the carriage body and travels in a section extending from the wire driving machine to the pulley of the first wire; A transport device comprising a second pulley rotatably provided on the carriage body and around which the second wire is wound;
A support that guides the first wire and the second wire that are provided in a support member installed in a direction change point where the transport direction of the transported object is changed in the middle of the section and that is bent by the change in the transport direction. With
A support main body suspended from the support member, a first sheave rotatably provided on the support main body for guiding the first wire, and the support main body coaxially and freely rotatable with the first sheave. And a second sheave that guides the second wire.
When the carriage moves over the first sheave and the second sheave of the support, the first wire and the second wire that are separated from the first sheave and the second sheave cannot be detached from the carriage. Provided with a first wire guide mechanism and a second wire guide mechanism for guiding,
When the carriage moves over the first sheave and the second sheave of the support, a contact movement mechanism is provided for guiding and moving the carriage in a predetermined positional relationship with the second sheave. A transport device.   2. The conveying apparatus according to claim 1, wherein a plurality of sets of the first sheave and the second sheave are arranged in a line along a wire unwinding / unwinding direction.   A support rod for rotatably supporting each set of the first sheave and the second sheave is provided, and the support rod is provided on the support body with a swing axis parallel to the rotation shaft of the first sheave and the second sheave. The conveying apparatus according to claim 2, wherein the conveying apparatus is provided so as to be swingable.   A flange formed on the outer periphery of the second sheave having a diameter larger than that of the first sheave and rolling with respect to the carriage body when the carriage moves over the first sheave and the second sheave. The transport apparatus according to claim 1, wherein the transport apparatus is provided.   The first wire guide mechanism and the second wire guide mechanism are each provided with a pair of abutting members that are opposed to each other with the wires interposed therebetween and can abut against the wires. 4. The transfer device according to any one of 4 above.   6. The conveying device according to claim 5, wherein the pair of abutting members is composed of a pair of rotatable rollers having an axis perpendicular to the axis of the first pulley and the second pulley. .   The first wire guide mechanism includes a support roller that supports the wire, and has an axis that is opposed to each other with the first wire interposed therebetween and that can be brought into contact with the first pulley and that is orthogonal to the axis of the first pulley. A pair of rotatable rollers is provided, and the pair of rollers is provided in the front and rear direction of the first wire of the first pulley. The conveying apparatus in any one of thru | or 4.   The contact movement mechanism includes a circumferential groove formed on an outer periphery of the second sheave and guided by the second wire, and a rail member that protrudes from the carriage body of the carriage and engages with the circumferential groove of the second sheave. The conveying apparatus according to claim 1, comprising:   9. The conveying apparatus according to claim 8, wherein a roller that engages with the circumferential groove is used instead of the rail member.   The conveying device according to any one of claims 1 to 9, wherein the support body is provided with a pressing roller that elastically contacts the outer periphery of the first sheave and the second sheave to press the wire.   The conveying device according to any one of claims 1 to 10, wherein the support is suspended by two or more cable bodies fixed to the support member.   A carriage for a conveyance device used in the conveyance device according to any one of claims 1 to 11.   The support for conveyance apparatuses used for the conveyance apparatus as described in any one of the said Claims 1 thru | or 11.

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