JPH01192696A - Thinning wood carrying device employing chain - Google Patents

Abstract

PURPOSE:To enable suspension of a thinning wood by using the small number of workers, by a method wherein a wheel for derivation to derive an endless chain to a loop outside a track and a wheel for introduction are rotated synchronously at the same speed irrespective of the tension of the endless track. CONSTITUTION:A wheel 48 for derivation to guide an an endless chain to a loop outside a track for pulling a thinning wood and a wheel 49 for introduction to introduce the chain again through a pulley at the tip of a closed loop are sized to be the same as each other so that a chain amount for introduction is specified. The wheels are similarly rotated in a state to be geared with a common gear 46, and the speed of the deviation and introduction chains are made equal to a track speed. Thus, in a lip outside a track, tension is only a value exerted by a pulley irrespective of the tension state of an endless track, and a pull force during suspension of a thinning wood can be reduced to a low value, and the suspension can be effected by using the small number of workers. Movement of a pulley at the tip of the loop causes freeing of a suspension position, and lock of the gear 46 enables movement of the loop outside the track to an arbitrary position in an endless track.

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a device for transporting thinned wood, and more specifically, the present invention relates to a device for carrying out thinned wood, and more specifically, a device for transporting thinned wood by hanging it on a circulation chain that is installed endlessly in a forest. This invention relates to a thinning material transport device using a chain.

(Background of the Invention) Conventionally, it has been considered one of the important tasks in forestry operations to carry out thinning properly in order to maintain a healthy forest with vitality. It is said that there are millions of hectares of forests in need of thinning, and approximately 2 million hectares are in urgent need of thinning. Thinning is required.

On the other hand, the actual amount of thinning work being carried out is far below the above-mentioned required level, and although there is a request to promote thinning, it is not possible to suddenly increase the number of people working on thinned wood.

In view of such a demand for promotion of forest thinning, the present inventor has developed the present invention with the aim of particularly improving the efficiency of thinning operations, reducing the cost of thinning operations, and the like.

(Prior Art) Conventionally, in order to transport thinned timber to a predetermined collection site, a main rope circulation method using wire lobes has been adopted. This main cable circulation type timber collection method involves constructing a long endless wire in a zigzag pattern across a large number of pulleys installed at appropriate locations within the department and a main cable operating device (winch, etc.). Hang the thinned wood that was felled on the
It is designed to be entrained by a circulating main rope wire.

The work of hanging thinned wood from the main rope wire is carried out as follows. In other words, the main rope wire that is being circulated is tensioned all over at a predetermined tension, so first this tension is loosened, and then the hanging is carried out by pulling it to the location where the material is located at the work site. .

(Problems to be Solved by the Invention) However, in the above-mentioned main rope wire circulation type lumber collection method that requires the above-mentioned hanging work, there is a problem that the hanging work is complicated. For example, when carrying out work on a sling, the tension on the main rope wire is first loosened as described above, but this usually requires operating a sling using a transportation device far away from the site, and requires communication with field workers. This work must be carried out while maintaining close communication by radio or the like between the drivers of the operating equipment, which makes it difficult to carry out the work smoothly.

Furthermore, even though the main rope wire is pulled with its tension loosened, as mentioned above, the wire, which has been erected for quite a long time within the building and whose tension has loosened, will sag along the entire track due to its own weight. Because it had to be done while overcoming the sagging caused by the wire's own weight, this work required a large number of people, or a porta-pull winch to pull the wire.

Furthermore, another problem is that the wire used in the above-mentioned main rope wire circulation method is quite long and heavy, so it is necessary to wind it up on a roll for logging in the mountains. Even if it is to be transported to the site, there is also the problem that a fairly large transport vehicle is required for the transport work. In addition, it is desirable to use the pulley on which the main rope wire is hung with a diameter as large as possible in order to improve the durability of the wire, but since a pulley with a large diameter is large and heavy, This leads to similar problems with transportation.

(Objectives of the Invention) The present invention solves the various drawbacks of the conventional apparatus described above, and enables hanging of thinned wood to be carried out easily and by a small number of people. The present invention provides a thinned tree transport device using a chain of a new configuration that reduces the weight of each device and thereby facilitates transportation of the device to the site.

(Means for Solving the Problems) Therefore, the feature of the thinned tree transport device using a chain according to the present invention, which was made to realize the above object, is that it can be carried out endlessly over a large number of pulleys installed in the department. a chain installed so as to be rotatable on a track, and a lead-out foil and an introduction foil disposed on a part of the endless track to guide the rotating chain to an extra-orbit loop for gathering thinning material. A thinning material transport device comprising a chain wheel mechanism and a driving device that applies an orbital rotation force to the chain, wherein the chain wheel mechanism is configured such that the pair of lead-out foils and the lead-in foil are the same at the same chain feed speed. The structure is such that they are linked so that they rotate synchronously in both directions.

(Example) The present invention will be described below based on embodiments shown in the drawings.

Figure 1 is a diagram showing a state in which a chain is installed in a garden.The chain 1 is sequentially hung on a large number of pulleys 2, passing through a chain operating device 3 consisting of a winch, for example, An extraorbital loop L for gathering is formed through the chain foil mechanism 4.

Specifically, the chain wheel mechanism 4 is a second and a third chain wheel mechanism.
Three shafts 4 shown in the figure and fixed on the frame 41
2.43.Each gear 45 instructed to rotate freely according to 44
．． 46 and 47 are meshed with each other, and the gears 45 and 47 at both ends are formed as gears having the same number of teeth and rotating in the same direction. And these both end gears 45.
Each of the chain wheels 47 is integrated with a chain foil, and these form a lead-out wheel 48 that leads the chain 1 from the endless track shown in FIG. 1 to the extra-orbit loop L.
Further, an introduction foil 49 is formed.

In addition, in the chain wheel mechanism 4 of this example, covers 50 and 51 for preventing the chain from coming off from the chain wheel are provided as shown.

According to the configuration described above, when the chain 1 running on an endless track reaches the chain wheel mechanism 4, it is led out from the lead-out foil 48 to the extraorbital loop L, and conversely, the chain in the extraorbital loop L is introduced. The loop returns to the endless trajectory from the foil 49, and the chain amounts of these derivations and introductions are kept the same.

And an extraorbital loop L formed with the lead-out foil and the introduction foil of this chain wheel mechanism 4 as starting and ending ends.
As mentioned above, since the lead-out wheel and the introduction wheel are rotating at the same speed in synchronization, the result is either a no-tension state or an appropriate tension state given by the pulley 5, regardless of the tension state of the endless track. By moving the pulley 5, it is possible to freely select the position where the thinned wood is drawn.

The method for hanging the thinned wood on the chain at this off-orbit loop L can be carried out by tightly attaching the robe to the chain according to a conventionally known method.

Furthermore, in order to move the chain wheel mechanism 4 to another position in the endless orbit, the rotation of each gear may be locked to allow the chain to move. This lock causes the chain wheel mechanism 4 (and thus also the off-orbit loop L) to move as a point in an endless track according to the movement of the chain.

According to the thinned tree transport device configured as described above, there is no need for any operation such as loosening the tension of the chain 1 installed in the garden, and the endless trajectory that is distinguished by passing through the chain foil mechanism 4 is completely unnecessary. The extraorbital loop L can be set to a tension state according to each requirement. For this reason, the work of hanging thinned wood, which used to be done by many people, has become more difficult.
- It can be easily carried out by one person or two people, and the operation of the operation device 3 can be done by simply rotating and stopping the chain, making unmanned operation possible.

In addition, the chain can easily connect a short chain into a long chain using an appropriate connecting aid,
Compared to such wires that cannot be connected or separated, it can be transported repeatedly and has the advantage of being lighter in weight each time it is transported. Furthermore, since the pulley for the chain can be of a smaller diameter than the conventional pulley for the wire, the transportability is also improved from this point of view.

(Effects of the Invention) As described above, according to the thinned tree transport device using the chain according to the present invention, hanging of the thinned timber does not require any work or loosening of the installed chain, and it is possible to hang the thinned wood by pulling the chain. It is easy because it does not require any force, and therefore has the advantage that it can be performed by a small number of people.

In addition, since there is no need to loosen the chain, there is no need to work in close contact with the operator of the operating device, and in some cases it is possible to operate the operating device unmanned. Become. This makes it possible to increase the number of thinning sites by 50% or even double with the same number of people who were engaged in conventional thinning work, making an extremely large contribution to the demand for increased efficiency in thinning work. There is.

Another advantage is that the parts constituting the device can be divided into smaller parts to reduce the weight of each component, thereby making it easier to transport the device to the site.

[Brief explanation of the drawing]

Drawings Fig. 1 is a diagram showing an outline of an embodiment of a thinned tree transport device using a chain according to the present invention, Fig. 2 is a plan view showing the configuration of an example of a chain wheel mechanism, and Fig. 3 is a diagram showing an example of the structure of a chain wheel mechanism. It is a sectional view taken along the line A-A in the figure. 1...Chain 2...Pulley 3...Operation device 4...Chain wheel mechanism 5...Pulley

Claims (1)

[Claims] 1. A chain installed so as to be able to rotate on an endless track across a large number of pulleys installed in a forest, and a chain that is placed on a part of the endless track and rotates for use in thinning timber. A thinning material transport device comprising a chain foil mechanism having a lead-out foil and an introduction foil for guiding the chain to an off-orbit loop for collection, and a driving device that provides an orbital rotation force to the chain, the chain foil mechanism comprising: . A thinned tree transport device using a chain, characterized in that the pair of lead-out foil and the lead-in foil are linked so as to rotate synchronously in the same direction at the same chain feed speed. 2. Using the chain according to claim 1, wherein the gears respectively attached to the rotating shafts of the lead-out wheel and the lead-in wheel are meshed with each other via an intermediate gear to form the linkage. Equipment for transporting thinned trees.