JPS5940665B2 - Cable transport device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a rope transport device for transporting cargo having rollers along a pre-arranged guide rope, and particularly to a rope transport device that can be arranged by bending the guide rope arbitrarily. This is what I did.

Conventionally, lifts, ropeways, etc. have been known as hanging conveyance devices using cables, but in these cases, an arm with rollers is engaged with a guide rope arranged in the conveyance direction. The structure is such that the cargo can be moved by being pulled by other cables to support the weight.

However, in the conventional cable conveyance device configured in this way, when the guide rope is bent to bend the conveyance path, the movement locus of the traction cable and the roller on the guide rope no longer match, resulting in trouble at the curve. A situation similar to the so-called inner wheel difference in automobiles occurred, and when the inner cable was run at a constant speed, the outer cargo was suddenly accelerated, creating an extremely dangerous situation.

Therefore, in conventional cable conveying devices, it is almost impossible to bend the guide rope, that is, the conveying path to suit the terrain.

This invention was made in view of the above-mentioned disadvantages, and by providing a pulley parallel to the guide rope on the cargo side and winding a drive cable around this pulley, the cargo is pulled through the pulley. To provide a cable transport device in which the pulley rotates at a curve to absorb the speed difference between the cable and the rollers so that the cargo can be transported extremely smoothly and safely without being accelerated. With the goal.

An embodiment of the present invention will be described below based on the drawings.

Fig. 1 shows an example of a rope transport device used for transporting wood using a balloon, in which 1 is a guide rope arranged in the transport direction, 2 is a wire with a U-shaped cross section guided by this guide rope 1. Nomadic body, 3,3. . . . consists of a wheel 4 having a recess that can be engaged with the guide rope, a yoke 5 that holds this wheel 4, and a holder 6 that holds this yoke 5 rotatably around a vertical axis. This caster 3 is always urged toward the guide rope 1 by a compression spring 8 inserted in a spring box T fixed to the floating body 2.

Two sets of casters 3 are attached to the front and rear of the floating body 2 so as to sandwich the guide rope 1 from above and below, respectively, and the floating body 2 is supported by these casters.

9 is a holding frame provided at the bottom of the floating body 2;
A pulley 10 is rotatably attached to the lower part of the holding frame 9 in parallel with the guide rope 1, and a drive cable 11 disposed in parallel with the guide rope is wound around the pulley 10. The movable body 2 is pulled by a drive cable 11 via this pulley 10.

That is, if the tension of the cable is different before and after the pulley 10, the pulley rotates until one of the cables is loosened and comes to rest with the tension balanced, and the pulley and floating body 2 are transported in this balanced state. It is.

Note that the guide rope 1 is attached to the floating body 2 at the curve.
Notches 2a, 2b, and 2c are provided to prevent contact with the floating body 2, and locking portions 12, 12 are provided at the front and rear of the upper surface of the floating body 2 for securing a balloon, which will be described later.

Next, the structure and operation of the conveyance path curve of the conveyance device constructed as described above will be explained with reference to FIG.

In this type of cable conveyance device, the conveyance path is curved at the support portion of the guide rope.

In the figure, 13 is a column, and 14 is a support arm added horizontally to this column 13.The tip of this support arm is curved according to the bending of the guide rope, and can be engaged with the guide rope. An engaging edge 15a is formed, the guide rope 1 is engaged with the engaging edge 15a, and a plate 1 having a similar engaging edge 15b is formed from the opposite side.
A guide rope is sandwiched between the guide ropes 6 and 6 to form a pipe-shaped guide rail.

Therefore, at the curved point of this column, the caster 3 of the floating body has the engaging edge 15a of the support arm 14 and the plate 16,
It will roll on the rail consisting of 15b.

Thus, the caster 3 is biased by the compression spring 8,
In addition, since the yoke 5 is rotatable, even if the wheel 4 moves from the rope to the rail or vice versa, the spring expands and contracts, allowing the wheel to rotate smoothly and the yoke to rotate according to the curve. Since the wheels follow the curve of the rail, there is no risk of the wheels falling off.

On the other hand, at this curve point, as shown in the figure, the curvature of the drive cable 11 and the conveyance path do not match and the cable passes inside the conveyance path, resulting in a speed difference between the cask 3 and the pulley 10. However, at this time, the pulley 10 around which the cable is wound rotates to absorb this speed difference, so that the floating body can be transported safely.

That is, when the tensions at the front and rear of the cable wound around the pulley 10 are balanced, the pulley does not rotate, but if one of the cables becomes loose or stretched.

When the force increases, the pulley rotates until the tension between the cables is balanced, so at the curve point, the pulley rotates until the tension on the cable is balanced, preventing the floating object from accelerating rapidly and allowing it to be transported safely. .

Note that the support column 13 is provided with a vertical roller 17 and a horizontal roller 18 for preventing friction with the drive cable 11.

Figures 3 and 4 show an example of the structure of a support when the guide rope is curved up and down.
The tip of the support arm 14 supported horizontally by the fourth
As shown in the figure, it is bent at right angles and then bent outward again to form an appropriate curve in the vertical direction, and an engaging edge 15a is provided along the edge.

Then, a plate 16 having a similar engagement edge 15b and a curve is joined from the lower surface thereof, and the guide rope 1 is held therebetween.

Note that the bent piece 14a at the tip of the support arm 14 is configured to be narrower than the width of the notch 2c formed on the lower surface of the floating body 2, so that it does not come into contact with the bent piece 14a when the floating body passes therethrough.

Next, a system for transporting timber felled in a mountain forest by using the above-described transport device and a balloon will be described with reference to FIG. 5.

The drawing shows an embodiment in which the conveyance path is of an endless type, in which supports 13 are erected according to the terrain and the guide rope 1 is curved to form a curved conveyance path.

A plurality of floating bodies 2 are placed on this guide rope 1 at appropriate intervals, and each floating body 2 is connected to a three-stage balloon 19 by a rope, and the main rope of this balloon 19 is A locking metal fitting 21 is added to the lower end of 20, and a lumber 22 and a weight 2 are attached to this locking metal fitting 21.
3 is suspended.

The drive cable 11 is connected to the winches 24 and 2.
5, each movable body 2 is pulled and transported by the cable.

Also, at this time, the weights 23 of each floating body are adjusted so that the buoyancy of the balloon and the weight of the cargo are balanced, so that a large amount of lumber can be easily and quickly transported from a distance with a small amount of power.

Furthermore, once the timber is lowered at the position indicated by the broken line in the drawing, the cable 11 is removed from the winch 24 and the floating body 2 is passed through.
Next, the cable 11 is hung on the winch 24, and the winch 2
An endless system can be realized by removing the floating body 2 from the floating body 5 and allowing it to pass through.

In this embodiment, an endless system has been described, but the apparatus of the present invention can also be applied to a reciprocating system.

As described above, the cable transport device according to the present invention has wheels that can engage with a guide rope arranged along the transport direction, and is movably suspended from the guide rope via the wheels. In an apparatus in which the floating body is moved by being pulled by a drive cable, a pulley is added to one side of the floating body parallel to the guide rope, and a part of the drive cable is wound around this pulley, Since the structure is such that the floating body is pulled through the pulley, even if a curve is provided in the conveyance path (guide rope), the pulley rotates at the curve and absorbs the speed difference between the cable and the wheel. It is possible to transport moving objects extremely smoothly and safely without accelerating the object, and as a result, it has become possible to create a cable transport device with curves, which was previously impossible, and it can be installed in any location on any terrain. be effective.

[Brief explanation of the drawing]

FIG. 1 is a cross-sectional front view of essential parts showing an example of the configuration of a floating body used in a cable conveyance device according to the present invention, FIG. 3 is a perspective view showing another support structure, FIG. 4 is an enlarged explanatory view of the main part thereof, and FIG. 5 is an explanatory view showing an example of the case where the present invention is applied to a lumber transport system. 1...Guide rope, 2...Floating body,
3... Caster (wheel), 10... Pulley, 11... Drive cable.

Claims (1)

[Claims] 1 It has wheels that can be engaged with a guide rope arranged along the conveyance direction, and the floating body movably suspended from the guide rope is pulled and moved by a drive cable via the wheels. In the conveying device, a pulley is added to one side of the movable body in parallel with the guide rope, a part of the drive cable is wound around the pulley, and the movable body is pulled through the pulley. cable carrying device.