JPS5936526Y2 - Cable transport device - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a cable conveyance device, and in particular allows a long carrier to move safely along a winding conveyance path.

Conventionally, knots, ropeways, and the like are known as hanging conveyance devices using cables, but these generally involve a carrier having rollers engaged with a guide rope arranged in the conveyance direction. It is constructed to support the weight of cargo and move it by towing it with other cables.

However, in such a cable transport device, if the carrier (floating body) that supports the cargo is long in the transport direction when it has a curved transport path, the guide rope may become attached to the carrier at the bend. There is a risk that it may come into contact with the frame and become unable to move, causing an accident.

Therefore, in this invention, a notch is provided in the frame of the carrier (M moving body) suspended from the guide rope over the intersection range so that the frame does not come into contact with the guide rope at the curve of the conveyance path. It is an object of the present invention to provide a cable conveyance device that allows a carrier to move safely and smoothly along a winding conveyance path.

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

FIG. 1 shows an example of a carrier of a cable transport device to which the present invention is applied, in which 1 is a guide rope provided in the transport direction;
2 is a floating body having a U-shaped cross section and guided by the guide rope 1, 3, 3. . . . is a wheel 4 having a recess that can be engaged with the guide rope 1, 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 a caster consisting of
is constantly urged toward the guide rope 1 by a compression spring 8 inserted in a spring box 7 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 parallel to the guide rope 1, and a drive cable 11 arranged parallel to the guide rope is wound around this pulley 10. The movable body 2 is pulled by a drive cable 11 via a 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.

The frame of the floating body 2 is provided with a notch 2a on the top surface, a notch 2b on the side surface, and a notch 2C on the bottom surface in order to prevent contact with the guide rope 1 at the curve.

Note that reference numeral 12 denotes locking portions provided at the front and back of the upper surface of the floating body 2 for securing the balloon.

Next, the effect on the curve of the floating body conveyance path configured as described above will be explained.

First, in the figure, reference numeral 13 denotes a column, and 14 denotes a support arm horizontally attached to the column 13. The tip of this support arm is curved according to the bending of the guide rope, and the guide rope can be engaged with it. Engagement edge 15a
is formed, and the guide rope 1 is engaged with this engraving edge 15a, and the guide rope is sandwiched from the opposite side by a plate 16 having a similar retaining edge 15b to form a pipe-shaped guide rail. It is.

When the floating body 2 is transferred to the curve of this support, as shown in FIG.
b, it is possible to prevent the guide rope 1 from coming into contact with the frame of the floating body 2.

Also, at the curve point of this support, the caster 3 of the floating body
are the engaging edges 15a, 1 of the support arm 14 and the plate 16.
It will roll on the rail consisting of 5b.

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 chance 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 casters 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 sides of the cable wound around the pulley 10 are balanced, the pulley does not rotate, but if one of the cables becomes loose or the tension increases, the pulley rotates until the tensions on both sides are balanced. At the curve point, the pulley rotates until the cable tension 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 in the vertical direction.The tip of the support arm 14 supported horizontally by the support 13 is at a right angle It is then bent outward again to form an appropriate curve in the vertical direction, and a retaining 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 between the plates 16 and 16.

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 floating body when it passes through. .

That is, when the floating body 2 is transported to this curve point,
The guide rope block 1 is inserted into the notch 2C provided on the lower surface of the floating body 2, which is supposed to cross and contact the guide rope.
Contact can be avoided by entering the bent piece 14a.

Note that a notch 2a is provided on the upper surface of the floating body 2 in consideration of the case where the guide rope curves upwardly.

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.

The drawing shows an embodiment in which the conveyance path is of an endless type, and supports 13 are erected according to the topography 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 attached 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 weight 23 in the floating body is 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.

As described above, the cable conveyance device according to this invention has a notch in the frame of the floating body suspended from the guide rope over the intersection range so that the frame does not come into contact with the guide rope at the curve of the conveyance path. , the movable body can be safely and smoothly transported even on a winding conveyance path, and this has the effect that it can be installed even in mountains and forests with complex topography.

[Brief explanation of the drawing]

FIG. 1 is a cross-sectional front view of the main part showing the structure of the floating body in the cable conveyance device according to the present invention, FIG. 2 is an explanatory plan view showing the state of the floating body in the left-right curve of the conveyance path, and FIG. 3 is a perspective explanatory view showing the state of the floating body in a vertical curve, FIG. 4 is a perspective view showing an example of a support structure for a guide rope by a support arm, and FIG.
It is an explanatory view showing an example of the case where it is applied to a timber carrying-out system. 1...Guide rope, 2...Floating body,
2a, 2b, 2C...notch, 3...
Caster, 11... Drive cable.

Claims (1)

[Scope of utility model registration request] It has a caster that engages with a guide rope arranged along the transport direction, and the floating body movably suspended from the guide rope is pulled and transported by a drive cable via the caster. A cable conveyance device, characterized in that the frame of the floating body is provided with a notch over an intersecting range so that the frame does not come into contact with the guide rope at the curve of the conveyance path.