JP2012017194A - Method of installing timber chute - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a method of installing a timber chute which can carry a timber chute member easily and quickly, according to its surrounding environment or a sliding road projected line on which to make a sliding road.SOLUTION: The tip on the other end side of the other cross rope 1B is inserted into one end of one cross rope 1A between two hollow cross ropes 1A and 1B, and besides the tip on one end side of one cross rope 1A is inserted into the other end of the other cross rope 1B, whereby a junction 20 free of connection and separation is constructed and a plurality of cross ropes 1A and 1B are connected in order at junctions 20 to form a carrying rope 2, and the carrying rope 2 is suspended in the form of a closed loop, extending from a low position S to a high position J, and is driven to circle, and it is constructed to draw and carry a timber chute member 70 for forming a sliding road from the low position S to the high position J, and further the number of a plurality of cross ropes 1A and 1B to be connected are increased/decreased, thus a constructed route, whereon the carrying rope 2 is suspended, is changed in order.

Description

  The present invention relates to a shura installation method.

  In order to form a runway in which a logging material obtained by cutting a tree, bamboo, or the like is slid to a predetermined position, a shura installation method for connecting a number of saddle-shaped shura members is known (see Patent Document 1).

Japanese Utility Model Publication No. 62-136409

  However, such a shura member cannot be transported by truck or other vehicle because it is installed on a slope in a mountainous area where a large number of trees are growing. It was. For this reason, there is a problem that it takes a lot of labor and labor.

  SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a shura installation method capable of easily and quickly transporting a shura member in accordance with the surrounding environment and a planned runway on which a runway is to be formed.

In order to achieve the above object, the shura installation method of the present invention inserts the tip on the other end of the other cross rope into one end of the other cross rope out of the two hollow cross ropes. In addition, the tip of one end of one of the cross ropes is inserted into the other end of the other cross rope to form a connectable / separable connecting portion, and a plurality of the cross ropes are sequentially connected. The connecting rope is connected to form a transport rope, the transport rope is suspended in a closed loop shape from a low position to a high position, and driven around, and a shura member for forming a runway is pulled from the low position. In this method, the plurality of cross ropes to be connected are increased or decreased to sequentially change the construction route on which the transport rope is suspended.
Further, the transport rope is wound around a rotating drum that is driven to rotate, and the transport rope is sent out while being pulled, so that the transport rope is driven between the low position and the high position.

In addition, among the above-mentioned shura members, a branch shura member for forming a confluence portion formed in a Y shape in advance is disposed at an intermediate position of the planned runway, and is branched from the downstream side toward the upstream side so that the above-mentioned sliding member is formed. This is a method of extending the road into branches.
Further, a plurality of taper-type shura members previously formed in the upstream widened shape among the above-mentioned shura members are arranged on the curved runway planned portion, and at the wide upstream end of the taper-type shura member on the downstream side, the upstream side This is a method of fitting a narrow downstream end portion of the taper type shawl member to form a curved portion on the runway.

  According to the present invention, the conveyance rope can be easily extended or shortened. The erection route can be changed flexibly according to the surrounding environment such as terrain and the planned runway where the runway should be formed. That is, the route for transporting the shura member can be changed easily and flexibly.

It is a principal part side view which shows one Embodiment of this invention. It is a top view which shows one Embodiment. It is a side view which shows an example of an insertion jig. It is a side view which shows an example of a cross rope. It is a side view explaining the use condition of an insertion jig. It is a side view explaining a connection part. It is a side view explaining a connection part. It is a side view explaining a connection part. It is a side view explaining a connection part. It is a side view explaining a connection part. It is a side view explaining a connection part. It is a side view explaining a connection part. It is a side view which shows an example of a hook part. It is a side view explaining a hook part. It is a side view explaining an example of a construction part. It is a side view explaining the use condition of a pulley. It is a bottom view explaining the use condition of a pulley. It is a perspective view which shows an example of a runway. It is a principal part top view which shows an example of a runway. It is a figure which shows an example of a taper type shawl member, (a) is a top view, (b) is a front view. It is a top view which shows an example of a branch shura member. It is a top view which shows the other example of a branch shura member. It is a figure which shows an example of the shawl member for inlets, (a) is a top view, (b) is side sectional drawing. It is an operation explanatory view. It is an operation explanatory view.

Hereinafter, the present invention will be described in detail based on illustrated embodiments.
As shown in FIG. 18, the shura installation method of the present invention is a method of forming a bowl-like runway 60 installed on a slope such as a mountainous area in order to slide a sliding object W such as a felled timber. .
As shown in FIGS. 1 and 2, a transport rope that pulls the shura member 70 from a low position S, which is a transport start position of the shura member 70 for forming the slide 60, to a high position J that is a position to be transported. 2 is installed.

  The transport rope 2 is composed of a plurality of hollow cross ropes 1 and 1, and before being driven around, one cross rope 1 (1A) and the other cross rope of the plurality of cross ropes 1 and 1. 1 (1B) are sequentially connected at the connecting portion 20.

Here, as shown in FIG. 4, the connecting portion 20 is formed by the other end of one cross rope 1A of the two cross ropes 1 and 1, and the other cross rope 1B. The tip 14 of the end 13 is disposed close to the end 13. Wrap adhesive tape around each end 12, 14 to prevent fraying.
The cross rope 1 is formed as a hollow (cylindrical mesh bag shape) in which strands 10 made of a large number of synthetic fibers are made into two (bundles) as a set, and the sets are alternately stacked (assembled). It shall also be called a one-punch, eight-punch, or twelve-pitch synthetic fiber rope. For example, it is used for sea anchors, buoy ropes, stationary nets and the like. Synthetic fibers are, for example, polyacid nylon, polyethylene, vinylon, polypropylene and the like. In order to obtain sufficient strength, the present invention is preferably a cross rope 1 (12-strand synthetic fiber rope) composed of 12 (bundle) strands 10. The cross rope 1 (1A, 1B) may be hereinafter referred to as “rope”.

As shown in FIG. 5, the tip 14 on the other end 13 side of the other rope 1 </ b> B is connected to a rod-shaped insertion jig 8.
The insertion jig 8 is formed in advance so as to be lightweight and small and portable before being brought into the field. As shown in FIGS. 3 and 5, the hemispherical tip end 81 and the tip 81 The guide portion 82 is formed in a shape having a straight introduction portion (guide portion) 82 from the base end portion 84 toward the base end portion 84 and a tapered portion 83 that gradually increases in diameter from the diameter of the introduction portion 82 and contacts the base end portion 84. . The base end portion 84 is formed to have a larger diameter than the introduction portion 82, and forms a holding hole 85 into which the rope 1 is inserted while opening on the base end face 84a side. The holding hole 85 is formed with an inner diameter smaller than the diameter of the rope 1 in the natural state or in the radial compression-reduced state. Further, a bottom surface 85a for hitting that restricts the amount of insertion of the rope 1 is formed in the holding hole 85. In addition, a slit 86 is formed in which the base end portion 84 and the taper portion 82 are halved.
As shown in FIG. 5, for example, when the tip 14 of the other rope 1B is inserted into the holding hole 85, the diameter of the holding hole 85 is expanded by the slit 86 and the restoring force (spring force) causes the tip 14 of the other rope 1B. The other end 13 is held like a collet to prevent it from coming off.

  In FIG. 6, one end 11 of one rope 1A is compressed in the longitudinal direction to increase the inner diameter in a bellows shape, and the texture (knitting) between the strand 10 and the strand 10 is expanded. The distal end portion 81 and the introduction portion 82 of the insertion jig 8 connected to the rope 1B are inserted into one end portion 11 of the rope 1A having an enlarged diameter in one longitudinal direction N1. By doing so, it is not necessary to loosen the tip 12 of one rope 1A (divided for each strand 10) to form a tip opening and insert the other rope 1B, thereby improving workability.

As shown in FIG. 7, the distal end 14 of the other rope 1B is inserted into the one end 11 of one rope 1A together with the base end 84 of the insertion jig 8. By the taper portion 83, the one end portion 11 of the one rope 1A is expanded in diameter, and the base end portion 84 is smoothly inserted.
As shown in FIG. 8, the insertion jig 8 and the tip 14 of the other rope 1B are inserted so that one end 11 of one rope 1A is pulled out from the inserted strand 10 and strand 10 on the opposite side in the longitudinal direction. Let

As shown in FIG. 9, the insertion jig 8 is removed from the tip 14 of the other rope 1B. Then, the other rope 1B is pulled back in the other longitudinal direction N2, and the tip 14 of the other rope 1B is stored in one end 11 of the one rope 1A.
As shown in FIG. 10, one end 11 of one rope 1A having the tip 14 of the other rope 1B is pulled in the longitudinal direction. As a result, the diameter of one rope 1A is reduced, the tip 14 of the other rope 1B is tightened to increase the frictional force, and the strand 10 of one rope 1A and the strand 10 of the other rope 1B are locked together ( Occurrence is prevented).

Then, as shown in FIG. 11, the tip 12 of one rope 1A and the insertion jig 8 are connected, the other end 13 of the other rope 1B is expanded in diameter, and the insertion jig 8 is operated as described above. Then, the other end 13 of the other rope 1B is accommodated with the tip 12 of one rope 1A, and the other end 13 of the other rope 1B is pulled in the longitudinal direction.
Then, as shown in FIG. 12, the tip 12 of one rope 1A is connected to the other end 13 of the other rope 1B, and the tip 14 of the other rope 1B is connected to one end 11 of the one rope 1A. The connecting portion 20 is formed. The connecting part 20 formed in this way does not require a connection fitting or the like, is strong against a tensile force in the longitudinal direction, has a thickness of about two ropes at the central part 20a of the connecting part 20, and has a pulley 3 and a rotation described later. Problems such as catching with the drum 5 are prevented.

Further, if one end 11 of one rope 1A is compressed in the longitudinal direction, the inner diameter of one rope 1A is expanded, and the tip 14 of the other rope 1B is smoothly pulled out. Further, if the other end 13 of the other rope 1B is compressed in the longitudinal direction, the inner diameter of the other rope 1B is increased, and the tip 12 of one rope 1A is smoothly pulled out, so that the connecting portion 20 can be easily pulled out. The connection is released.
As described above, the connecting portion 20 that can be connected and separated is configured, and a plurality of cross ropes are sequentially connected by the connecting portion 20 to form the transport rope 2.

Further, as shown in FIG. 13, a hooking portion 21 on which the shawl member 70 is hung on the transport rope 2 is formed.
As shown in FIG. 14, one end 7a and the other end 7b of the flexible cord body 7 are inserted between the strand 10 and the strand 10 from the direction substantially perpendicular to the axis of the cross rope 1 with a predetermined interval. As shown in FIG. 13, the one end 7a side portion and the other end 7b side portion inserted through the cross rope 1 are bound to form a hanging suspension ring.
In this way, the use of the string 7 prevents problems such as catching with the rotary drum 5 described later. Further, it is possible to connect by simply hooking with the hook member 79, and the workability is improved. Moreover, the cross rope 1 and the string body 7 can be connected without a tool, and the hook portion 21 can be easily increased or decreased. Moreover, the pitch dimension of the hook part 21 and the hook part 21 can be easily changed.

  Moreover, as shown in FIG.1 and FIG.2, the rotating drum 5 for driving the conveyance rope 2 around, the winch (winding machine) 6 for providing moderate tension | tensile_strength (tension) to the conveyance rope 2, A transport vehicle such as a truck enters a construction machine such as a power shovel, a drive source E such as an engine, a hydraulic motor or an electric motor of a forest work vehicle, and an operation unit 9 capable of operating the rotating drum 5 and the winch 6 respectively. It is disposed at a low position S that is a possible transfer start position. Specifically, the drive source E, the rotary drum 5, the winch 6, and the operation unit 9 are provided in a construction machine such as a self-propelled power shovel having a crawler track or a work vehicle in a forest.

Further, the transport rope 2 is wound around the rotating drum 5 twice (two turns) or more.
In addition, from the low position S to the high position J, an installation portion 30 for suspending the arranged transport rope 2 is formed in the vicinity of the place where the runway 60 is to be formed.
Further, a erection part 30 having a folding pulley 3 (3B) is formed between the rotating drum 5 and the winch 6 so that the retracting direction of the rotating drum 5 and the pulling direction of the winch 6 are the same direction.
In addition, an erection portion 30 having a tension pulley 3 (3A) for applying tension with the winch 6 is formed on the closed loop-shaped conveyance rope 2.

  As shown in FIG. 15, the erection part 30 is composed of a pillar part 31 made of trees, bamboo, or the like existing in the low position S or the high position J, or a pile piled up, and a flexible part wound around the pillar part 31. A fastening member 32 such as a fastening belt having a belt-like or string-like body and a pulley 3 having a rotating body (pulley) 39 on which the transport rope 2 is suspended are configured.

  As shown in FIG. 15A, the pulley 3 is attached to the column 31 by a fastening member 32 so as to be swingable around the horizontal axis La. In a natural state where no tension is applied to the transport rope 2, the support 31 is suspended by a fastening member 32, and when tension is applied to the transport rope 2, as shown in FIG. The body 39 side swings upward, and the rotating shaft L3 of the rotating body 39 is attached so that it can rotate vertically. The vertical shape means a range of 60 degrees to 120 degrees with respect to the horizontal plane.

Prior to being brought into the construction site, the pulley 3 is formed in advance so as to be lightweight, small and portable, and as shown in FIGS. 16 and 17, the transport rope 2 extends downward from the circumferential concave groove 39d of the rotating body 39. A bottom wall 39a is formed to prevent the dropout. The bottom wall portion 39a is formed in a sprocket shape (gear shape) in which cutout portions 39b that open in the vertical direction at predetermined intervals around the rotation axis L3 are formed. In other words, locking protrusions 39c that prevent the transport rope 2 from dropping downward are formed on the bottom surface side of the rotating body 39 at predetermined intervals around the rotation axis L3.
That is, when the hooking portion 21 of the transport rope 2 is suspended from the rotating body 39, the hanging ring-like string body 7 hangs down from the notch 39b (between the locking protrusion 39c and the locking protrusion 39c) and rotates. The hanging state is maintained without being caught by the body 39, and the transport rope 2 can be driven smoothly.

  Further, as shown in FIG. 19, the shura member 70 includes a branched shura member 70A for forming the merge portion 63 on the runway 60, and a taper type for forming the straight portion 64 or the curve portion 62 on the runway 60. A plurality of types are formed in advance (before being loaded into the transfer start position) in the shawl member 70B and the shackle member 70C for the slot for forming the slot 61 with the roller 78 on the runway 60. . Note that the alternate long and short dash line shown in FIG. 19 indicates the center line of the runway 60 to be formed as the planned runway line 90.

  As shown in FIGS. 19 and 20, the taper-type shawl member 70B has an upstream end width dimension Xa larger than the downstream end width dimension Xb so as to be widened upstream, and has a wide upstream end 71 and a narrow downstream end 72. Is forming.

  As shown in FIG. 19, FIG. 21, and FIG. 22, the branch shura member 70A is formed in a Y shape in plan view. A substantially straight main line portion 75 is formed from the upstream side to the downstream side, and a sub-line portion 76 that is inclined in a plan view and extends obliquely from the downstream side to the upstream side at a predetermined inclination angle θ from the axis 75a of the main line portion 75 is formed. . It is more preferable that the inclination angle θ is less than 90 degrees and less than 45 degrees so that when the sliding object W slides from the auxiliary line portion 76, it smoothly flows to the narrow downstream end portion 72. In addition, the main line portion 75 and the sub-line portion 76 have an upstream end width dimension Xa larger than the downstream end width dimension Xb to form an upstream wide shape, and a wide upstream end portion 71 and a narrow downstream end portion 72 are formed. Yes.

  As shown in FIG. 19 and FIG. 23, in the inlet opening shawl member 70C, a roller 78 rotatable around a horizontal axis perpendicular to the sliding direction is arranged in parallel at the bottom (the ground side). The upstream end width dimension Xc is set to be larger than the downstream end width dimension Xb to form an upstream widened shape, and a wide upstream end 71 and a narrow downstream end 72 are formed. In addition, the upstream end width dimension Xc of the inlet opening shura member 70C is set to be larger than the upstream end width dimension Xa of the branch shura member 70A and the taper type shura member 70B, and the sliding object W can be easily placed on the roller 78. It is possible.

Further, as shown in FIG. 23 (b), the side wall 77 of the loading port shawl member 70C is formed in an inclined shape in a side view so as to become lower from the downstream side toward the upstream side.
Further, when the narrow downstream end portion 72 of the inlet shura member 70C is placed on the wide upstream end portion 71 of the taper type shura member 70B, the downstream side of the side wall 77 of the inlet shura member 70C is tapered. The shura member 70B is formed so as not to protrude upward (empty side) from the upstream side of the side wall 77 of the shura member 70B, so that the sliding object W can be easily placed. In addition, the roller 78 can give momentum to the sliding object W, thereby enabling smooth sliding.

When the narrow downstream end 72 of the upstream shura member 70 is placed and fitted into the wide upstream end 71 of the downstream shura member 70, both members are positioned relative to each other, although not shown. In order not to be displaced, a joint portion or a connecting member that can be detachably connected is provided.
The material of the shura member 70 is vinyl chloride, plastic, FRP, duralumin, stainless steel, iron or the like.
Further, the upstream end width dimension Xa of the branching shura member 70A and the taper type shura member 70B is made the same dimension, and the downstream end width dimension Xb of the branch shura member 70A, the taper type shura member 70B and the inlet shura member 70C is the same dimension. It is preferable to do this.

Next, the case where the runway 60 as shown in FIG.25 (d) is formed is demonstrated to an example.
In FIG. 24 and FIG. 25, the center line of the runway 60 to be formed is shown as a runway planned line 90 by a one-dot chain line. The planned runway 90 corresponds to the input port 61 of the runway 60 to be formed, the planned entrance 91 located at the upstream end position of the planned runway 90, and the curve of the runway 60 to be formed. A curved runway planned portion 92 corresponding to the portion 62, a merged planned portion 93 corresponding to the merged portion 63 of the formed slide 60 and disposed at an intermediate position of the planned runway 90, and a formed slide 60 straight portions 64 and corresponding straight runway planned portions 94.

  As shown in FIG. 24 (a), a number of shura members 70, a rotating drum 5, a winch 6, a drive source E, an operation unit 9, a tension pulley 3 (3A), and a folding pulley 3 (3B) at a low position S. Is disposed. In addition, a plurality of erection parts 30 are installed in the vicinity of a predetermined intermediate position from the downstream side of the planned runway 90 from the low position S to the high position J. It is desirable to provide the erection part 30 so that the outward path to which the shura member 70 is pulled approaches along the planned runway 90.

  As shown in FIG. 24 (b), the conveying rope 2 is suspended (stretched) in a closed loop shape from the low position S to the high position J via the rotating drum 5, the winch 6, and the erection part 30. The tension is applied, the rotary drum 5 is driven to rotate around the horizontal axis, the transport rope 2 is sent out while being pulled, and the closed-loop transport rope 2 is driven to rotate. As shown in FIGS. 1 and 13, the hook member 79 connected to the shawl member 70 is sequentially locked to the hanging ring-shaped hooking portion 21 of the transport rope 2, and the shawl member 70 is pulled.

  As shown in FIG. 24 (c), a plurality of taper type shura members 70B are arranged in a straight line from the downstream side and connected to the straight runway planned portion 94, and are joined at the intermediate position of the runway planned line 90. A branching shura member 70A is arranged and connected to the planned portion 93. The straight portion 64 on the downstream side of the joining portion 63 formed at the most downstream position has a sliding object W introduced from each inlet portion 61 after completion of the runway 60 at one location (collection point) on the low position S side. This is a mainstream portion 65 that guides the sliding object W to the lumber).

24 (c), 25 (a), 25 (b), 25 (c), and 25 (d) are sequentially branched from the position where the branching shawl member 70A is disposed. New construction portions 30 are sequentially provided in the vicinity of the planned runway 90 extending upstream.
Moreover, the conveyance rope 2 is adjusted so that it can be suspended in the extended erection part 30. One end 11 of one rope 1A of the connecting portion 20 of the transport rope 2 and the other end 13 of the other rope 1B are compressed in the longitudinal direction, and the tips 12 and 14 are pulled out to release the connection. And when changing as shown in FIG.24 (b) from FIG.24 (c) and FIG.25 (a), by adding the number of the cross rope 1 and forming the connection part 20 one by one, desired length A transfer rope 2 extended to the above is formed and suspended in a closed loop. Further, in the case of changing from FIG. 25 (b) to FIG. 25 (c) and FIG. 25 (d), the number of the cross ropes 1 is decreased and the transport rope 2 is shortened. That is, the transfer rope 2 is extended or shortened in accordance with the planned runway 90, and the erection part 30 is increased or decreased, and the erection route (the conveyance route of the sura member 70) is sequentially changed to convey the sura member 70.

  The transported shura members 70 are sequentially arranged and connected so that the runway 60 branches from the downstream side toward the upstream side and extends in a branch shape. A taper type shura member 70B is linearly arranged from the downstream side to the upstream side and connected to the planned straight runway 94. Further, a branching shura member 70A is arranged in the planned joining portion 93 to form a branching portion (merging portion 63). A plurality of straight portions 64 and other merging portions 63 are formed from the branch portion toward the upstream side. In addition, a plurality of input port portions 61 are formed by disposing the input port scull member 70C in the planned input port portion 91. Further, a plurality of taper type shura members 70B are arranged in an arc shape and connected to the planned curved runway portion 92 to form a curved portion 62.

  As shown in FIG. 19, the shawl members 70 are connected to each other by placing and fitting the narrow downstream end 72 of the upstream shura member 70 into the wide upstream end 71 of the downstream shura member 70. . Further, in the planned curved runway 92, the downstream taper-shaped shura member 70B and the upstream taper-shaped shura member 70B are connected in a U-shape in plan view, and a plurality of taper-shaped shura members 70B are used to form a circle. A curved portion 62 is formed by connecting in an arc.

  Further, the rotating drum 5, the winch 6, the drive source E, and the operation unit 9 are arranged on the transfer start position side of the shura member 70, and the transfer rope 2 is driven on the high position J side where the installation route needs to be changed. The installation route is easily changed because no machine or a machine that applies tension is provided. Further, since the erection unit 30 only binds the pulley 3 to the support column 31 with the fastening member 32, attachment / removal (increase / decrease) is easily performed, and the erection route is quickly changed.

  As shown in FIG. 25 (d) and FIG. 18, the completed runway 60 has a merging portion 63 and a curved portion 62, and is arranged in a branch shape so as to avoid trees. Then, the sliding object W is efficiently collected from various places in the high position J to one collecting place in the low position S. Further, after the use of the runway 60, it is disassembled into the shura member 70, a construction route is provided in the vicinity of the runway 60, and it is pulled out by the transport rope 2 and carried out.

  The design of the present invention can be changed. In FIG. 7, after inserting the insertion jig 8 and the tip 14 of the other rope 1B into the one end 11 of one rope 1A, the insertion jig 8 is inserted. Only the tip of the other rope 1B may be withdrawn, and the tip 14 of the other rope 1B may remain in the one end portion 11 of the one rope 1A. Note that the low position S may be any place that is lower than the place where the shura members 70 to be transported are stacked and transported. The high position J is a place higher than the place where the shura members 70 to be transported are accumulated.

  As described above, the shura installation method of the present invention is such that, of the two hollow cross ropes 1A and 1B, one end 11 of one cross rope 1A is connected to the tip of the other cross rope 1B on the other end 13 side. 14 is inserted, and the tip 12 on the one end 11 side of one cross rope 1A is inserted into the other end 13 of the other cross rope 1B to form a connectable / separable connecting portion 20, and a plurality of The cross ropes 1A and 1B are sequentially connected at the connecting portion 20 to form the transport rope 2, and the transport rope 2 is suspended in a closed loop from the low position S to the high position J to form a runway 60. The shawl member 70 is pulled from the low position S and transported to the high position J, and the transport rope 2 is suspended by increasing or decreasing the number of cross ropes 1A and 1B to be connected. The construction route will be changed sequentially, so 2 can be easily extended or shortened on site. The erection route can be changed freely according to the surrounding environment such as terrain. No need for a cutting machine such as a hydraulic cutter that requires a drive source or connecting fittings for connection, and without requiring the formation of a complicated knitting ice price, the conveyor rope 2 can be extended and shortened quickly and inexpensively. It can be performed. It is not necessary to transport the shura member 70 by human hands, and the shura member 70 can be transported easily and quickly even if it is made of a heavy metal such as stainless steel or various shapes.

  In addition, the conveyance rope 2 is wound around the rotary drum 5 that is driven to rotate, and the conveyance rope 2 is pulled out and sent out to rotate between the low position S and the high position J, thereby preventing slippage. Thus, the rotational force of the rotary drum 5 can be reliably transmitted to the transport rope 2 and can be driven around in an energy efficient manner. The transport rope 2 can be formed in a closed loop shape, and the erection work can be easily performed.

  Further, a branching shroud member 70A for forming a joining portion, which is formed in a Y-shape in advance, is arranged at an intermediate position of the planned runway 90 and branched from the downstream side toward the upstream side. Since the runway 60 is extended into branches, the branch-like runway 60 can be easily formed. The runway 60 can be formed avoiding obstacles such as trees and stones existing on the site. It is possible to form an efficient runway 60 that can be slid so that the sliding objects W from a plurality of places are accumulated in one place.

  In addition, a plurality of taper type shura members 70B formed in advance in the upstream widened shape among the above-mentioned shura members 70 are disposed in the curved runway planned portion 92, and the wide upstream end portion 71 of the taper type shura member 70B on the downstream side. In addition, the narrow downstream end portion 72 of the upstream taper type shura member 70B is fitted and the curved portion 62 is formed on the runway 60. Therefore, the runway 60 avoids obstacles such as trees and stones existing on the slope. Can be formed. The runway 60 can be formed flexibly corresponding to the environment such as the surrounding terrain.

1A cross rope 1B cross rope 2 transport rope 5 rotating drum
11 One end
12 Tip
13 Other end
14 Tip
20 Connecting part
60 Runway
62 Curve
70 Shura
70A branch shura
70B Tapered Shura
71 Wide upstream end
72 Narrow downstream end
90 planned runway
92 Curved runway planned portion J High position S Low position

Claims (4)

Of the two hollow cross ropes (1A) (1B), one end (11) of one of the cross ropes (1A) is connected to the tip of the other cross rope (1B) on the other end (13) side. (14) is inserted, and the tip (12) on one end (11) side of one of the cross ropes (1A) is inserted into the other end (13) of the other cross rope (1B). The connecting part (20) that can be connected and separated is constructed,
A plurality of the cross ropes (1A) and (1B) are sequentially connected at the connecting portion (20) to form a transport rope (2),
The transfer rope (2) is suspended in a closed loop from the low position (S) to the high position (J) and driven around, and the shura member (70) for forming the runway (60) is moved to the low position (S ) And to convey to the high position (J),
Furthermore, the number of the said cross rope (1A) (1B) to connect is increased / decreased, and the installation route where the said conveyance rope (2) is suspended is changed sequentially, The shara installation method characterized by the above-mentioned.   The transport rope (2) is wound around a rotary drum (5) that is driven to rotate, and the transport rope (2) is sent out while being pulled in, so that the low position (S) and the high position (J The shura installation method according to claim 1, wherein the driving is circularly driven.   Among the above-mentioned shura members (70), a branch shroud member (70A) for forming a confluence portion formed in a Y shape in advance is disposed at an intermediate position of the planned runway (90), from the downstream side to the upstream side. 3. The method for installing the shala according to claim 1 or 2, wherein the runway (60) is branched to extend the branch (60) in a branch shape. A plurality of taper type shura members (70B) previously formed in the upstream widened shape among the above shura members (70) are arranged on the curved runway planned portion (92),
The narrow downstream end portion (72) of the upstream taper type shawl member (70B) is fitted into the wide upstream end portion (71) of the taper type shawl member (70B) on the downstream side, and the slide (60 4) A method for installing the shawl according to claim 1, 2 or 3, wherein a curved portion (62) is formed in the upper portion.

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