JPS60118131A - Automatic pruning machine - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application This invention provides a method for sequentially removing branches by vertically equipping a chainsaw and rotating the chainsaw in a spiral manner around a tree. This invention relates to a self-lifting automatic branching machine, and is particularly characterized by the provision of a sensor that predicts when branches will collide with the tip of the chainsaw.

BACKGROUND ART A self-elevating pruning machine is known as a labor-saving machine for pruning work, which is equipped with a chain saw and climbs around a tree in a spiral to remove branches. That is, as shown in FIG.
Drive wheel 4 pressing around tree 1 with power from
At the same time, a chainsaw 5 installed vertically is operated to cut away branches 6.

When the automatic pruning a7 having such a structure is held by the tree 1 at the base of the tree 1, it automatically ascends the tree 1 in a spiral shape and strikes off the pruning 6 in between.

Problem to be Solved by the Invention Incidentally, the change-5 is originally intended to cut the branch 6 well at its side portion, so the arcuate portion of the tip of the change-5 that is not the side portion comes into contact with the branch. It has the characteristic of vI that it cannot exhibit good cutting ability even if it is used.

Therefore, as shown in Fig. 1, when the change 5 is at a distance directly below the branch 6 to be removed, and when this is approximately equal to the upward movement e of the automatic pruning machine 7, the automatic pruning When Machine 7 rotated again to make a cut, the tip of Change-5 hit Branch 1, making it impossible to cut or causing the engine to stall. And it's like this! When it comes to rings, the work of pulling them down and lowering them is extremely troublesome, and the work efficiency is significantly reduced.

Therefore, in order to eliminate the above-mentioned drawbacks, the present invention aims to provide an automatic branch cutting machine that avoids branch cutting at the tip of a chainsaw.Means for solving the problems This invention provides: A sensor quickly detects branches that collide with the tip of the chainsaw, and based on the sensor's detection, an appropriate action is taken to change the relative relationship between the chainsaw and the branch, thereby avoiding the tip of the chainsaw from colliding with the branch. This enables suitable continuous pruning work using an automatic pruning machine.

That is, the automatic pruning machine according to the present invention is characterized by the second feature. Third. As shown in Figure 4, the change-5 is installed in the vertical direction, and the change-5 is spirally raised and rotated around the tree 1 to sequentially blow away the branches. In the type of automatic branching machine 7, a sensor 10 is provided near the change-5 to predict that the tip of the change-5 will collide with the branch 6 while the change-5 is rising, and the sensor 10 detects when the branch 1 is The point is that an appropriate operating mechanism is provided to change the relative relationship between the change-5 and the branch 1 by sensing, so that the tip of the change-5 can be prevented from colliding with the branch 1.

Then, the operating mechanism is adjusted as shown in Fig. 2 (change-5
The fψ movement mechanism shown in FIG. 4, the in/out mechanism of change-5 as shown in FIG. 4, or the upper limit lead l changing mechanism of the automatic pruning machine 7 as shown in FIG. 3 can be used.

When pruning is done with the automatic pruning machine 7, most of the branches 6 are cut off at the side of the 1000-inch saw 5, but the tip of the 1000-inch saw 5 and the branches 6 are cut off.
If the distance from the branch 6 to the branch 6 is approximately equal to 1-*, +J-de ρ of the automatic branch a7, the branch 6 will collide with the tip of the chainsaw 5. Therefore, such a branch 6 is connected to the sensor 10.
This is predicted in advance and the relative relationship between change-5 and branch 1 is changed. In other words, a double branch 1 is predicted in advance at the tip of the change-5, and the operating mechanism for changing the relative relationship between the change-5 and the branch 1 is activated.

This operation may be performed by tilting the change-5 along the direction of movement of the change-5 so that the change-5 passes under the branch 6, or by moving the change-5 in and out up and down, or by automatic branching. By changing the upward movement of the striking machine 7, the change 5 is made to pass under the branch 6, or the branch 6 is made to collide with the side of the change 5. Technique 6 that collided with the side of Change-5 is suitably cut in a normal cutting state.

Embodiments Hereinafter, specific embodiments of the present invention will be described in detail with reference to the drawings.

FIG. 2 is a front view of an example in which the sensor 10 is attached and the tip of the change-5 is tilted as an appropriate action to avoid a collision. At the same time, a turnbuckle 8 consisting of a male screw 8 (a) and a female screw 8 (b) is attached to the change-5, and the motor 9 fixed to the frame 2 is connected to the turnbuckle 8.

On the other hand, if the change-5 is at a position directly below the technique 6, a sensor 10 is provided which is displaced by contacting the technique 6, and a switch 11 is opened and closed by the displacement of the sensor 1o.
I will also set it up.

As described above, if the tip of the chain saw 5 is now in a position directly below the branch 6, the sensor ~10 will sense it and open/close the switch 11 to issue a signal, and upon receiving this signal, the motor 9 will rotate. Tilt the chain saw 5 to the left or right.

If the tip of the chain saw 5 is tilted and displaced, it is possible to avoid the tip of the chain saw 5 from hitting the branch 6, and
The side portion comes into contact with the branch 6, and together with the upper bound force, the branch 6 can be smoothly brushed away. The tilting posture of the chainsaw 5 may be changed by, for example, using a time switch or the like to reverse the motor 9 again after a predetermined period of time to return to the normal state.

FIG. 3 is a front view showing another embodiment. When the sensor 10 and the switch 11 are activated, the elevation angle of the drive wheels 4 is changed by the motor 12 and the like. As a result, the upper limit lead l of the automatic technique 1 machine 7 becomes a rising lead p which avoids the tip of the chain saw 5 colliding with the technique 6, so that the collision is avoided and the chain saw is placed on the branch 6. The side parts of -5 are in good contact and pruning is continued.

FIG. 4 is also a front view showing another embodiment, and when the sensor 10 and switch 11 are activated, the chenosaw 5 itself is vertically extended or pulled by an appropriate structure. This also avoids a situation where the chain saw 5 collides with the branch 6 and is unable to cut it, even though the automatic branch cutting machine 7 rises as it is.

Effects of the Invention As described above, the present invention provides a self-lifting type machine in which a chainsaw is installed in a vertical direction and the chainsaw is raised and rotated spirally around a tree to successively remove branches. In the automatic branching machine, a sensor is provided to predict that the tip of the chainsaw will collide with a branch while the chainsaw is rising, and an appropriate operating mechanism that changes the relative relationship between the chainsaw and the branch based on the detection of the branch by the sensor. This system is designed to prevent the tip of the chainsaw from hitting a branch, so it is possible to avoid situations where the tip of the chainsaw hits the technique and cannot cut or stalls, and it also prevents the chainsaw from automatically stopping when it stalls. Excellent effects such as being able to eliminate the troublesome work of pulling down and lowering the pruning machine can be expected.

[Brief explanation of the drawing]

Fig. 1 is a front view of an automatic pruning machine, Fig. 2 is a front view of an automatic pruning machine equipped with a sensor according to the present invention, Figs.
Each figure is a front view of an automatic pruning machine showing other embodiments. (Symbol) 1... Tree 5... Chainsaw 6... Technique 7... Automatic pruning machine 10... Sensor patent applicant Seirei Kogyo Co., Ltd. Patent applicant agent Eiji Omura Figure 1 Figure 2 Figure 3 Figure 4

Claims (1)

[Claims] ■. Mounting the chainsaw (5) vertically 6iii L/;
In the self-elevating automatic pruning machine (7), the chainsaw (5) is rotated spirally around the tree (1) to sequentially remove branches. −(
A sensor (10) is provided to predict that the tip of the chain saw (5) will hit the branch (6) while the chain saw (5) is being raised, and the chain saw (5) is moved by sensing the branch (6) by the sensor (1o). This automatic pruning machine is provided with an appropriate operating mechanism that changes the relative relationship between the chain saw (5) and the technique (6) to avoid the tip of the chainsaw (5) from colliding with the branch (6). 2. The operating mechanism is a tilting mechanism of a chain saw (5), an in/out machine +R of a chain saw (5), or an automatic pruning machine (7).
2. The automatic pruning machine according to claim 1, wherein the automatic pruning machine is a mechanism for changing an upper limit lead.