JPH0564184U - Overhead carrier for timber, etc. - Google Patents

Abstract

(57) [Summary] [Purpose] Regarding the overhead wire transporting device for collecting and transporting timber harvested in forests, etc., the winding diameter of the drum body on the winding side and the feeding side with the movement of the carrier It is an object of the present invention to grasp the change in the moving speed of the overhead wire due to the change in the size of the above, and to easily and easily perform the operation of connecting and disconnecting both drum bodies in the interlock control when necessary. [Structure] Shafts 5a and 5b of a drum body 1a on the winding side and a drum body 1'a on the feeding side are provided on the same axis and are separably coupled by an interlock mechanism 9. Thus, the interlock control is performed by utilizing the rotational force generated in the drum body 1'a on the feeding side by the load W of the wood 11 etc. to the driving force of the drum body 1a on the winding side.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an overhead wire transportation device for collecting timber, etc. felled in a forest or the like and suitable for collecting and transporting the timber.

[0002]

[Prior Art]

 Conventionally, an overhead wire transportation method for collecting and transporting felled timber, etc. regardless of the topographic conditions of slopes, depressions, wetlands, and obstacles such as stumps and standing trees is used as a method of carrying overhead trees as shown in Fig. 8. There is a method called the running skyline as shown in.

That is, the running skyline shown in FIG. 8 has a pair of first and second winches in which drum bodies 1a and 1'a are rotatably provided, for example, on a dolly D by driving a motor or the like. By driving the mechanical parts 4'A, 4'B and the winch mechanical parts 4'A, 4'B, one end 2a, 3a side can be wound around the drum bodies 1a, 1'a so that they can be wound up and unwound. The lower overhead wire 2 and the upper overhead wire 3 to be installed, and the tower T mounted on the trolley D, and the other end of the upper overhead wire 3 via the fixed pulley 30 a for direction change which is attached to the standing tree 30 at a certain height. A base frame portion 12a to which 3b is fixed; two movable pulleys 12b, 12b rotatably mounted on the upper portion of the base frame portion 12a and movably mounted on the upper overhead wire portion 3A of the upper overhead wire 3; It is possible to lift suspended objects such as wood 11 This is a method of using an overhead wire carrier having a structure including a carrier 12 formed by a suspension pulley 12c mounted below the base frame portion 12a so as to bind to the other end 2b side of the lower overhead wire 2.

As shown in FIG. 8, in order to carry the wood 11 using this overhead wire carrying device, a desired one end side (nose tip) of the felled wood 11 or the like is connected to one end 2 b of the lower overhead wire 2. Bind to.

After that, the first and second sets of winch mechanism parts 4′A and 4′B, whose ends 2a and 3a are respectively wound, are driven by a drive source such as a motor, and the winding side and the feeding side. By rotating the drum bodies 1a and 1'a of the above, respectively, the upper overhead wire 3 and the lower overhead wire 2 are fed out in the directions shown by the arrows a and b, and when they are wound up, one end 3b of the upper overhead wire 3 is bound. The carrier 12 having the base frame portion 12a moves while receiving the tensile force of the lower overhead wire 2 while being guided by the upper overhead wire portion 3A of the upper overhead wire 3, so that the hanging device installed at the lower portion of the carrier 12 is moved. The timber 11 bound by the other end 2b (tip) of the lower overhead wire 2 that is wound around the pulley 12c is transported to a desired place while being suspended in the hollow along the slope H or the like, and collecting is performed.

However, when the amount of the upper overhead wire 3 of the feeding-side drum body 1'a is greater than that of the winding-side drum body 1a, the wood 11 to be transported is lowered, and similarly, the winding-side drum. Even when the winding amount of the lower overhead wire 2 of the element body 1a is smaller than the feeding amount of the feeding-side drum element body 1'a, the wood 11 hung up by the carrier 12 is lowered.

For this reason, it is possible to prevent the carrier 12 from traveling alone, and to prevent the wood 11 from falling while the upper overhead wire 3 and the lower overhead wire 2 are strained while the wood 11 is suspended from the carrier 12. In order to carry it in, it was necessary to apply a braking brake or the like corresponding to the load W of the wood 11 to the drum body 1a on the feeding side.

[0008] In view of the fact that this braking operation requires skill and requires time and effort for transportation operation, conventionally, as shown in FIG. 9, both the drum side bodies 1'a and 1a on the feeding side and the winding side are provided. Coupling gears and sprockets 50'a, 50a coaxially arranged in parallel on both drum bodies 1'a, 1a using an interlock mechanism 9'comprising power transmission parts such as gears and chains 51. By doing so, the load W of the wood 11 to be transported serves to utilize the rotational force of the feeding-side drum element 1'a as the driving force of the driving-side drum element 1a to perform an interlock (horsepower). Regeneration) was being controlled.

[0009]

However, the above-mentioned conventional interlock control is arranged in parallel by using an interlock mechanism section 9'comprising power transmission parts such as gears and chains 51 as shown in FIG. Since the drum body 1a on the winding side and the drum body 1'a on the payout side are linked, the rotation speeds of the drum bodies 1a and 1'a are the same when transporting a suspended object. However, the rope winding diameters R1 and R2 (the number of windings of the upper overhead wire 3 and the lower overhead wire 2) between the drum body 1a on the winding side and the drum body 1'a on the feeding side due to the movement of the carrier 12 The change in the moving speeds V1 and V2 (cord speed) of the lower overhead wire 2 and the upper overhead wire 3 due to the change is ignored.

That is, as shown in FIG. 8 and FIG. 9, the drum 12 is linked to the drum bodies 1a and 1'a, and the carrier 12 is located at a position higher than the lock point N at which the rope speeds of the upper overhead wire 3 and the lower overhead wire 2 are balanced. Since the winding diameter R2 of the feeding-side drum element 1'a is larger than the winding diameter R1 of the winding-side drum element 1a while traveling a long distance, the feeding-side upper overhead wire 3 The wood 11 moves faster at the moving speed V2 and descends with respect to the ground. On the contrary, when the transporter 12 is close to the lock point N, the timber 11 is wound around the winding body 1a on the winding side. The diameter R1 is larger than that of the drum body 1'a on the feeding side, the moving speed V1 of the lower overhead wire 2 is large, the wood 11 rises and abuts against the bottom of the carrier 12, and the rope tension increases, There was an inconvenience that the carrier 12 did not run.

For this reason, in the conventional interlock mechanism section 9 ', the gears of the interlock mechanism section 9', the chain 51, etc. are sometimes uncoupled from the drum bodies 1a, 1'a and the upper overhead wire 3 and the lower overhead wire 3 are disconnected. Although it is necessary to adjust the moving speeds V1 and V2 with respect to the side overhead wire 2, the gears connecting the winding-side drum element 1a and the unwinding-side drum element 1'a are biting or sprockets. It took a lot of time and effort to connect and release the chain 51 wound between the windings 50a and 50'a, and it was difficult to operate and was not put to practical use.

Moreover, during the gathering of the wood 11 or during the erection of the upper overhead wire 3 and the lower overhead wire 2, both the drum side bodies 1a and 1'a on the winding side and the feeding side are connected to the interlock mechanism portion 9 '. It is necessary to operate the drum bodies 1a and 1'a independently from each other by disconnecting from them, but the conventional interlock control shown in FIG. The gear on the drive side is meshed with the gear on the passive side, or the power transmission component such as the chain 51 is once coupled between the sprockets 50a, 50'a provided coaxially on the drum bodies 1a, 1'a. If so, it would take time and effort to connect the chain 51 and the like to the sprockets 50a and 50'a again.

In order to solve the above-mentioned conventional drawbacks, the present invention changes the winding diameter of the winding-side drum element and the feeding-side drum element due to the movement of the carrier during the transportation of the suspended object. The change in the moving speed of the overhead wire caused by the above is properly captured, and the operation for connecting and disconnecting both drum bodies is performed easily and simply without the need for a brake operation. Can be carried in a stable state without changing the hoisting height, and independent operation of either the winding side or the feeding side drum element during gathering or installation of the upper and lower overhead lines is possible. The purpose is to

[0014]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the present invention has a winch mechanism part having a drum that is rotationally driven on each of a winding side and a feeding side, and one end side of which is wound around the drum element and is movable by feeding or winding. An upper overhead wire and a lower overhead wire, the other end of the upper overhead wire is bound, and a movable pulley is placed on the upper overhead wire portion of the upper overhead wire and is movably hung, and a carrier of the transporter. The other end is wound around the suspension pulley provided at the lower part to lift and transport the wood by the above-mentioned lower overhead wire to form an overhead wire transport device for collecting wood, such as the drum on the winding side and the feeding side. A means is adopted in which the element body is rotatably arranged on substantially the same axis and the shaft portion of the drum element body is detachably coupled via an interlock mechanism portion.

[0015]

[Action]

 The shaft of the feeding-side drum body and the winding-side drum body that are arranged on substantially the same axis are detachably connected by the interlock mechanism, so that the suspended objects such as wood can be carried. Considering the moving speed of the ropes (upper and lower overhead wires) due to the difference in the winding diameters of the drum elements on the feeding side and the winding side, the drum element on the feeding side depends on the load of the suspended object. The rotational force generated on the body can be used as the driving force for the drum body on the winding side to automatically perform interlock control, and when necessary, the interlock mechanism section is automatically disconnected to extend it. Alternatively, the winding drum body can be independently rotated.

[0016]

【Example】

 1 to 5 show an embodiment of the present invention. In the present embodiment, the running skyline overhead line method and the transportation method are the same as the conventional method shown in FIGS. 8 and 9, and the same portions are denoted by the same reference numerals.

1 to 4, reference numerals 1a, 1b; 1'a, 1'b form a pair of winch mechanism portions 4A, 4B for winding up the lower overhead wire 2 and feeding out the upper overhead wire 3 respectively. The drum body 1a, 1b; 1'a; 1'b has a substantially cylindrical overall shape and is formed to have substantially the same diameter. For example, it is rotatably installed on the dolly D.

The drum bodies 1a, 1b; 1'a, 1'b are a motor M as a drive source, and pulleys 6, 7, and appropriate powers such as a belt 8 wound around the pulleys 6, 7. The transmission component passively rotates the rotational force from the motor M as a drive source.

Reference numeral 9 denotes an interlock mechanism portion that detachably connects the shaft 5a of the winding-side drum base bodies 1a and 1b and the shaft 5b of the feeding-side drum base bodies 1'a and 1'b. In this embodiment, the interlock mechanism portion 9 is of a gear type in which gears 10a and 10b which can mesh with each other are attached to the abutting ends of the shafts 5a and 5b arranged on the same axis.

In the interlock mechanism 9, gears 10a and 10b are meshed with the drum body 1a on the winding side and the drum body 1'a on the feeding side, for example, during lifting and transportation of wood 11 as a suspended object. By linking in the state, the rotational force generated in the drum body 1'a, 1'b on the feeding side by the action of the load W of the wooden piece 11 as the object to be suspended becomes the driving side and the winding side. The interlock control is performed by utilizing the drum bodies 1a and 1b.

In the interlock mechanism section 9, the carrier 12 travels farther than the lock point N at which the rope speeds of the upper overhead wire 3 and the lower overhead wire 2 are balanced, and the drum body 1'a, 1'on the feeding side. If the winding diameter R2, R'2 of b is larger than the winding diameter R1, R'1 of the drum body 1a, 1b on the winding side and the moving speed V2 of the upper overhead wire 3 on the feeding side is faster, and vice versa. At the tower T (original column) side where the carrier 12 is near the lock point N, the winding diameters R1 and R'1 of the winding-side drum element bodies 1a and 1b are the feeding-side drum element body 1'a, When the moving speed V1 of the lower overhead wire 2 is larger than the rope winding diameters R2 and R'2 of 1'b, or when the lumber 11 is being collected or when the upper overhead wire 3 and the lower overhead wire 2 are being erected. By separating the shaft 5a from the shaft 5b (see FIG. 4), both drum bodies 1a, 1'a; 1b, 1'b are freely rotated independently, and the moving speeds V1 and V2 of the upper overhead wire 3 on the feeding side and the lower overhead wire 2 on the winding side are adjusted to the winding diameters R1 and R2. adjust .

The carrier 12 is mounted with a tower T mounted on a carriage D, and a base frame portion 12a to which one end 3b of the upper overhead line 3 is fixed via a direction-changing fixed pulley 30a that is attached to a fixed height of a standing tree 30 or the like. And two movable sheaves 12b, 12b rotatably mounted on the upper part of the base frame part 12a and movably mounted on the upper overhead wire part 3A of the upper overhead wire 3 and a suspended object such as wood 11 Is formed by a suspension pulley 12c mounted below the base frame portion 12a so as to be bound to the other end 2b of the lower overhead wire 2 so as to be capable of being suspended.

The means for engaging or disengaging the gears 10a, 10b by allowing the gears 10a, 10b to mesh with each other may be any of the shafts 5a, 5b arranged substantially on the same axis. One or both, for example, as shown in FIGS. 3 and 4, a bearing portion 13 for rotatably supporting one shaft 5b is being collected by the cylinder member S1 or the like via the joint member 14 while collecting the wood 11, or When necessary, such as when the upper overhead wire 3 and the lower overhead wire 2 are being laid, one shaft 5b, which is substantially on the same axis, is separated from the other shaft 5a in the axial direction to separate the drum body 1a on the winding side. The rotation of the drum unit 1b and the rotation of the drum side bodies 1'a and 1'b on the feeding side are controlled.

Reference numerals 1c and 1'c are storage drums arranged in front of the winding-side or feeding-side drum bodies 1a and 1'a.

One embodiment of the present invention has the above-mentioned structure. First, the timber 11 is collected and transported between a tower T (corresponding to a base tree) mounted on a trolley D and a standing tree 30. , The winding-side drum element 1'a and the winding-side drum element 1a are wound at one end 2a, 3a respectively, and the upper overhead wire 3 and the lower overhead wire 2 are stretched via a constant pulley 30a. Alternatively, the other end 3b of the upper overhead wire 3 is attached to the base frame portion 12a, and the movable pulleys 12b and 12b are placed on the upper overhead wire portion 3A of the upper overhead wire 3 to prepare the overhead wire work such as setting the carrier 12. Work and collecting work are performed to bind one end side (nose tip) of the desired wood 11 to one end 2b of the lower overhead wire 2.

Thereafter, as shown in FIG. 1, the winch mechanism portions 4A and 4B are driven by a motor M or the like to drive the winding-side and feeding-side drum bodies 1a, 1'a; 1b, 1'b, respectively. By rotating, the upper overhead wire 3 and the lower overhead wire 2 are drawn out in the directions shown by the arrows a and b, and are also hoisted to move the carry device 12 and the hanging pulley 12c installed at the lower part of the carry device 12c. The conventional overhead wire carrier is that the wood 11 as a suspended object, which is bound to the other end 2b (tip) of the lower overhead wire 2 wound around the rope, is transported to a desired place while being lifted along the slope H or the like. Has the same effect as.

However, in the present embodiment, during the above-mentioned transportation, the shafts 5a of the drum body 1a, 1b on the winding side and the drum body 1'a, 1'b on the feeding side, which are provided on substantially the same axis, The gears 10a and 10b of the interlock mechanism portion 9 installed at the abutting ends of 5b mesh in series, so that the operability is good and the load W of the wood 11 hoisted by the carrier 12 works to feed it. By the interlock (horsepower regeneration) that efficiently uses the rotational force generated in the drum body 1'a, 1'b on the winding side to efficiently transmit it to the drum body 1a, 1b on the winding side through the gears 10a, 10b. The wood 11 can be transported by moving the carrier 12 while the wood 11 is suspended from the slope H or the like to a substantially constant height h (see FIGS. 1 and 2).

Therefore, unlike the prior art, the brake operation for braking the movement of the upper overhead wire 3 in order to prevent the transporter 12 from traveling alone or to prevent the lifting of the suspended wood 11 becomes unnecessary.

Further, as shown in FIG. 9, the sprockets 50 ′ a and 50 a of the feeding-side drum element body 1 ′ and the winding-side drum element element 1 a, which are provided in parallel, are connected to each other by the power of the gears, the chain 51, etc. Unlike the conventional interlock mechanism section 9'which is linked by transmission parts, the number of parts is small and the manufacture and assembly are easy.

Moreover, for example, when the rope speeds of the upper overhead wire 3 and the lower overhead wire 2 are balanced during the transportation of the wood 11, for example, the carrier 12 travels farther than the lock point N shown in FIG. The winding diameters R2 and R'2 of 1'a and 1'b are larger than the winding diameters R1 and R'1 of the winding drum bodies 1a and 1b, and the upper overhead wire 3 on the feeding side is wound. When moving faster than the lower overhead line 2 on the side at the moving speed V2, and conversely, when the carrier 12 is closer to the tower T at the lock point N (closer to the main pillar), the drum body on the winding side The winding diameters R1 and R'1 of 1a and 1b are larger than the winding diameters R2 and R'2 of the drum body 1'a and 1'b on the feeding side, and the moving speed V1 of the lower overhead wire 2 is large. In this case, the cylinder S1 is driven so that the shaft 5b arranged substantially on the same axis is axially aligned with the other shaft 5a. When the gears 10a and 10b of the interlock mechanism portion 9 are disengaged by moving in the opposite direction, the connection is released, and the upper overhead wire 3 that is fed from the drum body 1'a and 1'b on the feeding side and the winding wire The moving speeds V1 and V2 with the lower overhead wire 2 which is wound around the drum bodies 1a and 1b on the take-up side are automatically adjusted.

In this way, the wood 11 is transported to a desired place.

FIG. 6 shows a second embodiment of the present invention. In this embodiment, the winding side drum elements 1a and 1b and the feeding side drum elements 1'a and 1'b are provided. The interlock mechanism portion 9 for detachably connecting the gears is formed so that the gears 10a and 10b are detachably meshed with the shafts 5a and 5b arranged substantially on the same axis as in the above embodiment. axis 5a of the driving side and the driven side in the embodiment, the abutting ends of 5b, the large-diameter portion 10c _1, 10d ₁ and the small-diameter portion 10c _2, 10d ₂ and friction clutches Release 10c provided respectively coaxially , 10d are arranged on substantially the same axis, so that the winding diameters R1 and R'1 of the winding side drum elements 1a and 1b and the winding diameters of the feeding side drum element bodies 1'a and 1'b. Moving speeds V1 of the upper overhead line 3 and the lower overhead line 2 depending on the magnitude of R2 and R'2, Friction clutches Release 10c by, for example, to move the axis 5b in the axial direction as shown by an arrow according to the difference of the second slow, 10d of the large diameter portion 10c _1, 10d ₁ side cross or small-diameter portion 10 c _2, 10d ₂ side cross Is operated so that the driving force of the drum body 1'a, 1'b on the passive side is regenerated to the drum body 1a, 1b on the drive side via the friction clutch plates 10c, 10d. Take control.

FIG. 7 shows a third embodiment of the present invention. In this embodiment, the torque converter 20, the winding side drum bodies 1a and 1b, the vane motor 22 and gear unit 1 'a ₁ that meshes with the gear portion 22a provided on the outer periphery of the vane motor 22, the drum body 1'a of feed-out provided on the outer peripheral one side of 1'b _1, the shaft 5 a and 1'b The vane pump 21 is connected to the vane motor 22 and arranged on the same shaft, and the rotor of the vane pump 21 is mounted on one end of the shaft 5'a. With the structure in which the gear 24 mounted on the shaft 5a is meshed with the gear 23, when the winding-side drum bodies 1a and 1b are rotationally driven, the rotor of the vane motor 22 is rotated and the gear portion 22a is rotated. Gear part 2 gear portion 1'a 1 that meshes with the _a, the drum body 1 for feeding side having 1'b ₁ 'a, 1'b is rotated, its rotation is regenerated is interlocked to the input side, search The vane pump 21 is driven according to the slow speeds of the moving speeds V1 and V2 of the upper overhead wire 3 and the lower overhead wire 2 due to the difference in the winding diameters R1, R'1; R2, R'2. It shows a hydraulically controlled interlock control in which the rotation speed of the feeding-side drum element 1b is adjusted by adjusting the amount of oil sent to.

In the description of the above-mentioned embodiment, the motor M as a drive source is connected to one drum element body 1a of the two winding-side drum element bodies 1a and 1b provided in parallel. Although the driving force of the motor M is passively rotated, although not shown in the drawing, the motor M is connected to the other drum body 1b on the winding side or the drum side on the feeding side is connected. In which the drum bodies 1, 1a and 1b; Also, the present invention can be applied.

Moreover, in the first and second embodiments described above, among the shafts 5a and 5b arranged on the same axis, the shaft 5b on the feeding side with respect to the shaft 5a on the winding side is axially aligned with the cylinder S 1 However, the gears 10a and 10a 'or the friction clutch discs 10c and 10d forming the interlock mechanism portion 9 are formed by moving the shaft 5a in the axial direction with respect to the shaft 5b. You can also unbind or unbind.

[0036]

[Effect of the device]

 As described above, the present invention changes the moving speed of the overhead wire due to the change in the winding diameter of the winding-side drum element and the feeding-side drum element due to the movement of the carrier during the transportation of the suspended object. Is properly grasped and the operability of connecting and disconnecting both the drum bodies on the winding side and the feeding side is easily and simply performed without the conventional brake operation. It is possible to carry upper objects in a stable state without changing the hoisting height, and either on the winding side or the feeding side as needed during collecting or during the erection of the upper and lower overhead lines. The drum body can be operated independently.

[Brief description of drawings]

FIG. 1 is a side view showing an embodiment of the present invention to which a method of carrying a running skyline overhead wire is applied.

FIG. 2 is a plan view of an essential part showing the interlock mechanism part.

FIG. 3 is a front view.

FIG. 4 is a plan view of a state where the interlock mechanism portion is also separated.

FIG. 5A is an explanatory side view showing a feeding-side drum element forming the present embodiment. (B) is a side view for explanation showing the drum body on the winding side.

FIG. 6 is a sectional view showing a second embodiment of the present invention.

FIG. 7 is a side view showing a third embodiment of the present invention.

FIG. 8 is a side view showing a conventional running skyline overhead line transportation method.

FIG. 9 is a side view showing a conventional interlock control.

[Explanation of symbols]

 1a Drum body 1'a Drum body 1b Drum body 1'b Drum body 2 Lower overhead wire 3 Upper overhead wire 4A Winch mechanism part 4B Winch mechanism part 9 Interlock mechanism part 12 Carrier 12c Suspension pulley D truck

Claims (2)

[Scope of utility model registration request] 1. A winch mechanism section having a drum element body which is rotationally driven on each of a winding side and a feeding side, and an upper overhead wire which has one end side wound around both drum element bodies and is movable by feeding or winding. And a lower overhead line, and a carrier in which the other end of the upper overhead line is connected and a movable pulley is placed on the upper overhead line portion of the upper overhead line and movably suspended.
The other end is wound around a suspension pulley provided in the lower part of the carry device to lift and transport the wood by the lower overhead wire to make an overhead wire transport device for collecting wood, such as a winding side and a feeding side. 2. The overhead line carrier for wood or the like characterized in that the drum body is rotatably arranged on substantially the same axis and the shaft portion of the drum body is detachably coupled via an interlock mechanism. 2. The drum element body of the winch mechanism portion on the winding side and the feeding side arranged coaxially, and the interlock mechanism portion are provided so as to be carried on a carriage. An overhead line carrier for wood or the like according to claim 1.