JPH10250986A - Carrying device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a carrying device in which a forced lowering device is installed in the carrying device to be used for lowering a loading block by remote operation instead of a weight required or lowering the loading block, and in which clamps are automatically actuated for maintaining the loading block after lowered onto the ground by a tension and angle of a lifting line at a site where the device is stretched in an endless tiler method for collecting timbers. SOLUTION: This carrying device transmits rotation force of a cell motor 11 to a capstan 10 to rotate it. A lifting line 3 wound around the capstan 10 for several rounds is pulled, and the pulled lifting line 3 descends onto the ground without a weight but by the weight of a loading block 5. Two clamps a8, b9 are provided for maintaining the loading block 5 after descending. Opening and closing of the clamps a8, b9 are automatically actuated by a tension and angle of the lifting line 3.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The transporter according to the present invention is a technical field at a site where a timber or the like is collected by a collecting machine. Logging is composed of two steps. One is a process in which a transport device on the skyline is sent above a destination such as timber, moored at that position, and the timber or the like loaded on the transport device is transported to the final destination. This is where the hole line plays a role. 2
One is a process of lowering a hook for hanging timber or the like from a carrier moored on a destination such as timber, and lifting the hook when loading work is completed. This is where the lifting line plays a role. This is a proposal of a carrier for lowering the lifting line.

[0002]

2. Description of the Related Art There are several types of overhead wire systems, and the conventional systems can be roughly classified into two types. One is a hoisting method. In this case, a lifting line is housed in a drum in a carrier itself (hereinafter, referred to as built-in). The built-in type requires a long time for erection of the overhead wire, and the weight of the transporter itself becomes large due to the weight of the rope, the drum, and accessories related to the drum. This will increase the diameter of the wire rope used or reduce the load. Two are endless styler systems. In this method, the transporter is a lightweight transporter and is widely used. However, the transporter itself does not have the function of forcibly lowering the lifting line, and the loading block with hooks is lowered using a drop-in line called the operating line or straw line. In addition, when there is an obstacle such as thinning work, the lead-in line cannot be used, and a weight is required for lowering the lifting line. The weight of this weight needs to be equal to or greater than its own weight of half the lifting line. Workers at the destination, such as lumber, must move the weight and the loading block to the lumber manually. This is the cause of the severe mountain work,
There are other new ways that are very dangerous. This method uses a tower yarder. Many of these erection methods are equipped with a device clamp (hereinafter, referred to as a clamp) for holding and anchoring a wire rope in a carrier. This clamp fixes and moors the transport equipment on the skyline, thus reducing the number of ropes used and improving the installation time. However, even when the timber is loaded, the transporter must be moored to the skyline and a strong clamping force is required. The skyline, hole line and lifting line are clamped by this strong clamping force, and there is a risk of rope damage. Naturally, this strong force
Equipment such as hydraulic pressure is required, which causes the weight of the transporter to increase. In addition, in order to remotely control the collection process several times,
It has been pointed out that wireless operation error and wireless operation become complicated.

[0003]

In order to solve the above-mentioned problems, the present transporter adopts an endless styler system and has no built-in system. It also aims to solve the biggest drawback of the endless styler system by developing a lightweight carrier and eliminating the need for a weight by lowering the lifting line using a forced-fall type carrier. After the lowering block has been lowered, a clamp that automatically operates without remote control of the maintenance device in place of the weight has been developed. is there.

[0004]

Prior to this, the present inventor has developed a transporter without a built-in lifting line in order to reduce labor and improve work efficiency. that is,
Equipped with a small engine and motor in the carrier, and using this as a power source, power is transmitted to the capstan via a speed reducer, and it is easy to rotate the capstan with several turns of the lifting line to forcibly lower the hook It is made to be able to. 1995 Patent Application No. 267933, 3382
Forty-five patent applications have been filed. The present invention further develops this, and uses a cell motor as a power source for the carrier body, and rotates the capstan via a reduction pulley. The lifting block and hooks are lowered by pulling a lifting line wound several times there.

[0005] The connection and disconnection to the capstan is configured to be simple and accurate by using the starter motor.

[0006] When lowering the lifting line of the endless styler system, it depends on the weight of the weight.
This weight is replaced with the forced descent function developed for the carrier itself. The lifting line wrapped around the capstan several times is pulled along with the rotation of the capstan. The pulled lifting line is configured to descend by its own weight of the loading block and the hook.

[0007] In this manner, the loading block and the hook descend on the ground. However, the role of forced descent is over,
If the cell motor remote operation is stopped, the capstan is in a free state. This means that the loading block rises to the transporter due to the weight of the lifting line. In order to prevent this, clamps are provided before and after the transporter to fix the lifting line with a stronger force than the weight of the lifting line.

[0008]

This transporter has a cell motor mounted thereon and is used as a power source. The capstan is rotated by the rotation of the cell motor via a deceleration pulley. The lifting line wound several times around the capstan is synchronized with the rotation and descends. This forced descent type carrier can achieve a small and lightweight carrier.

When the start of the cell motor is started by remote control, the cell motor and the capstan are connected, the capstan rotates, and the loading block descends. In the other collecting process, the cell motor operation was stopped, and the cell motor and the capstan were completely shut off. This simplifies remote operation, has certainty, and eliminates wireless operation errors.

The required weight of the weight of the endless styler system is set to half of the weight of the lifting line.
The power of reducing the rotational power of a small motor is sufficient. If you lift the lifting line with the capstan instead of the weight, the loading block and hook will descend.

In order to maintain the lowered loading block until the loading operation is completed, the lifting line is clamped by the clamps provided before and after the transporter. Also in this case, the lifting line has a tension of its own weight, and it is necessary to clamp the lifting line with a force higher than the tension. However, the lifting line is a thin line, and is a weak force. This clamping force is acted on by a spring and can be adjusted with an adjusting screw. Except when the lowering block is lowered and maintained, the lifting line is tensioned with a tension higher than the clamp force due to the characteristics of the endless tiler system, so the clamp is completely free in the normal collecting process .

The automatic opening / closing of the clamp is repeated by the downward force generated by the change in the tension of the lifting line and the balance of the rope angle between the pulleys before and after the clamp. In this way, automatic opening and closing can be achieved without remote control.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring to FIGS. 1 to 6, a detailed embodiment of the present invention will be proved.

FIG. 1 shows a transporter 4 suspended from the skyline 1 provided with an endless tiler type erection system for carrying out unloading work at a site where a collecting machine is to be collected and collected. The transporter 4 is suspended and supported on the skyline 1 via pulleys 17 and 18. The transporter 4 is traveled and moved by the fixedly arranged collecting machine 7 and the hole line endless drum 28, and the hole line 2 serves to move in the front-rear direction. This transporter is provided with a forced descent device, and the loading block 5 and the hook 6 can be lowered to the ground. However, the loading block 5 and the hook 6 loaded with wood and the like are lifted by the collecting machine 7 and the lift. The film is wound up by the chin line drum 29.

The specific functions of the transporter 4 will be described in detail with reference to FIG. In the main body of the transporter 4, the dynamo 13 generates power using the rotational force of the pulley 17, stores the generated power in the power storage location 12, and uses this power to rotate the cell motor 11 (described in detail later). The torque of the cell motor 11 rotates the pulley a15 via the connector 14. Further, the pulley b16 is transmitted to the pulley b16 via the V-belt 23, and is rotated at a reduced speed. The capstan 10 coaxial with the pulley b16 is rotated. The lifting line 3 is wound around the capstan 10 several times, and generates a pulling force from the rotational force.

Next, a method of winding the lifting line 3 will be described. The lifting line 3 wound around the lifting line drum 29 of the dust collector 7 is wound around the capstan 10 several times through the pulley 19 and further through the clamp 9 (described in detail later). Further, the vehicle passes through the pulley 20 and the pulley 21, and then goes out of the carriage and descends. The hanging block 5 is hung in the place where it fell, and it goes up again. Furthermore, it passes through the pulley 22, passes through the clamp 8, and is fixed to the tail tree 30 on the opposite side of the collecting machine 7.

Next, the transporter 4 suspended from the skyline 1
Is described below. When the transporter 4 arrives at a destination such as lumber, the operator of the collecting machine leaves the lifting line drum 29 in a free state and starts operation of the cell motor 11 by remote control. The capstan 10 rotates with the rotation of the cell motor 11, and the lifting line 3 wound several times around the capstan 10 is pulled toward the carrier. The pulled lifting line 3 descends by the weight of the loading block 5 and the hook 6. Even if the loading block 5 arrives on the ground, the lifting line 3 descends as much as possible due to the weight of the lifting line between the ground and the carrier.

Thus, the loading block 5 and the hook 6
When the vehicle reaches a destination such as lumber, the remote operation is stopped. At the same time, the lifting lines 3 are fixed by the clamps 8 and 9 and maintain the lowered state.

When the loading of the lumber or the like on the hook 6 is completed, the loading block 5 loaded by the lifting line drum 29 of the collecting machine 7 is lifted, and the final destination is set by the hole line endless drum 28 of the collecting machine 7. Transported to

Next, an embodiment of the starter motor 11 will be described in detail with reference to FIG. When the switch is turned on, the starter protrudes and rotates the cell motor. Conversely, when the switch is turned off, the operating part retracts and stops rotating. The cell motor 11 starts rotating by starting operation by remote control (remote device not shown), connects to the connector 14, and rotates the coaxial pulley a15. Further, the capstan 10 is rotated at a reduced speed via the V-belt 23. When the remote control operation is stopped, rotation stops,
The connection with the connector 14 is cut off, and the capstan 10 is completely free. In this way, two operations are performed by one remote operation.

Next, an embodiment of the clamps a8 and b9 will be described with reference to FIG.
This will be described in detail with reference to FIG. Clamps a8 and b9 are provided before and after the capstan 10 and the closing block 5.
Explaining the clamp a8, the lifting line 3
Is sandwiched between a fixing wood 24 and a roller 25. The fixing tool 24 is fixed to the carrier body and made of hard wood, and does not damage the wire rope during clamping. Roller 25
Moves freely up and down and constantly presses the fixed wood with a weak force due to the elastic force of the spring 26. This elastic force is adjusted by the adjusting screw 27. That is, roller 2
When the lifting tool 5 rises and comes into contact with the fixing tool 24 and closes, the lifting line 3 is clamped, the roller 25 moves down and separates from the fixing tool 24, and when opened, the lifting line 3 is free.

The vertical movement of the roller 25 is automatically performed by the change in the tension of the lifting line 3 and the balance of the force due to the angle. As for the description of the tension, the change in the lifting line tension of the endless tiler system employing this carrier will be described in the transport process. In the no-load empty carrier feed process, the loading block 5 is lifted up to the vicinity of the carrier 4 and shaken. Has a certain amount of tension to prevent
Both clamps open. At the time of forced lowering, the clamp 9 opens due to the pulling force of the capstan 10, but the clamp 8
Is closed without any pulling force. When the loading block 5 descends on the ground, only a small force acts on the lifting line 3 and both the clamps 8 and 9 are closed. FIG. 3 shows a closed state. Naturally, a strong force is involved in the subsequent step of loading wood or the like, and both clamps 8 and 9 are opened.
FIG. 2 shows an open state.

The weak force will be described. When the loading block 5 descends on the ground, the clamp 9 receives a force of about half of the weight of the lifting line between the transporter 4 and the main tree 31, and the clamp 8 applies the transporter 4 and the tail tree 30.
Approximately half the weight of the lifting line between the lines is involved. Spring 2
If the elastic force of 6 is equal to or greater than this weak force, the state in which the loading block 5 is lowered can be maintained.

The angle will be described. The clamp 9 is located between the pulley 18 and the capstan 10 and the rollers 25 of the clamp 9 are designed above them so that the low force lifting line 3 is angled to bend. Clamped. When the lifting line 3 has a strong force, the line becomes straight from the balance of the force, and the clamp is released. The same applies to the clamp 8.

As described above, the opening and closing of the crumb all operate from the change in the tension of the lifting line 3 and the balance of the force due to the angle, and the accuracy is accurate without relying on the wireless operation.

Such a forced lowering and clamping function operates only when no load is applied with a weak force, and when a strong force is applied, it may be in a free state and the required mechanical strength may be small.
This can reduce the size and weight.

FIGS. 5 and 6 show a construction method in the case where the endless styler method is not adopted and a structure inside the transporter. As shown in the figure, the hook 6 needs only the clamp 9 in front of the capstan to descend by a single line, and only the pulley g below the transporter. The usage is the same. If this method is adopted, the erection is further simplified and there are many advantages, but the operation of the collecting machine requires skill. The effect can be improved if it is used in combination with an interlocking collection machine such as a tower yarder.

[0028]

The effect of the present invention is that the lifting line can be lowered by forcibly lowering the lightweight carrier, so if it is adopted as a carrier in a widely used endless tiler system, the lifting line can be lowered. Necessary weights can be made unnecessary. This means
It eliminates the arduous work and the dangerous work of manually transporting a weight to a lumber destination. In addition, the use of self-motors and the development of clamps allow automatic operation, reducing the number of remote operations and increasing accuracy and safety.

[Brief description of the drawings]

FIG. 1 is a perspective view illustrating a use state of a transporter suspended by a skyline provided with a collector and provided with an installation by an endless tiler system for carrying out timber at a site where logging is to be performed. .

FIG. 2 is a perspective view illustrating the structure of a transporter.

FIG. 3 is a main part front view showing the structure of the clamp;

FIG. 4 is a side view illustrating the connection of the starter motor.

FIG. 5 is a perspective view showing a use state of a transporter provided with an installation other than the endless styler method.

FIG. 6 is a main part front view illustrating the structure of a transporter other than the endless styler method.

[Explanation of symbols]

 1. . . Skyline 2. . . Hall line 3. . . Lifting line 4. . . Carrier 5. . . Losing block 6. . . Hook 7. . . Collecting machine 8. . . Clamp a9. . . Clamp b10. . . Capstan 11. . . Cell motor 12. . . Power storage area 13. . . Dynamo 14. . . Connector 15. . . Pulley a16. . . Pulley b 17. . . Pulley a18. . . Pulley b 19. . . Pulley c 20. . . Pulley d 21. . . Pulley e 22. . . Pulley f23. . . V-belt 24. . . Fixed wood 25. . . Roller 26. . . Spring 27. . . Adjustment screw 28. . . Hole line endless drum 29. . . Lifting line drum 30. . . Tail tree 31. . . Main tree 32. . . Drive device 33. . . Pulley g

Claims (2)

[Claims] At a site where timber is collected by a collecting machine,
If this transporter is used in the widely used endless tiler system, this transporter has a function of forcibly lowering the lifting line by remote control from the ground, eliminating the need for a weight that is indispensable for the endless tiler system. Carrier with unique features. 2. When the lifting line is forcibly lowered by the transporter without using the weight by the endless styler method, clamps are provided before and after the transporter. This clamp is a transporter that has the feature of repeatedly opening and closing the clamp depending on the tension and angle of the lifting line without relying on remote control.