JPS609432A - 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 The present invention is applicable to pruning for the production of knot-free timber, pruning for pest control or cold damage prevention, or pruning before felling standing trees (hereinafter simply referred to as ``technique''). This paper relates to the improvement of an automatic pruning machine.

Most of the pruning and delimbing of standing trees is done manually using saws, rudders, etc., but in the case of high places, it is necessary to use ladders, ``burinawa'', etc., or tree climbing devices. I had to do it, and was forced to do a dangerous and treacherous FJl. Recently, there has been a demand for mechanization and automation of pruning work, and the equipment is one's own! There have been several proposals for the development and emergence of automatic pruning machines that are devised to move up and down tree trunks and cut branches while the blade rotates. however,
All of them use chenosaws as cutlery,
Since the chenosaw is long vertically, it is difficult to follow the tree trunk, which leaves the base of the branch uncut, but it also has the disadvantage that the chenosaw can dig into the tree trunk, damaging the tree trunk or causing the chenosaw to be severed. Also, in order to rotate the chino with the blade attached at high speed along the guide plate, it is necessary to lubricate the chino, the chino sprocket, and the guide plate parts.
It has been pointed out that if too much oil is applied, oil will adhere to the cut end of the branch, resulting in insufficient build-up healing, and if too little oil is applied, it will burn and cause the chino to break, making it inconvenient to handle. It was.

The present invention improves the conventional automatic pruning machine as described above, and provides an automatic pruning machine with excellent performance that is guaranteed to produce a finish equal to or better than the conventional method (b), which was performed by one person with a saw or rudder. Its structural features include a rotating disc-shaped blade instead of a chainsaw, and an automatic pruning machine that cuts branches by rotating the rotating disc-shaped blade around the tree trunk. As a machine, a rotating disk-shaped cutter is placed in contact with the tree trunk in a tangential direction, and a cutter guard is provided whose bottom surface is almost the same as the bottom surface of the disk-shaped cutter, so that the bottom surfaces of the cutter and the cutter guard are aligned with the tree trunk. It is located at the point where it is rotated around the tree trunk while being pressed against the outer periphery. DESCRIPTION OF THE PREFERRED EMBODIMENTS The automatic pruning machine of the present invention will be explained more specifically and in detail below with reference to the drawings.

Figure 1 is an overall perspective view of the automatic pruning machine attached to the tree trunk, Figure 2
The figure is a longitudinal cross-sectional view of the blade part.

As shown in Figure 1, the pruning machine body consists of a machine frame (1),
It consists of an engine (2), a cutter part (3), and a drive shaft (4). ), a middle ring rail B (9), and a plurality of vertical columns (8) that support them. Ring rail A (
6) and the lower ring (7) is the ring rail B (9).
), and the ring rail B (9) has an outer rack gear (11) rotatably provided on the outer periphery, and this outer rack gear (11) is fixed to the gear case (10) of the engine (2), which will be described later. ing.

The engine (2) is supported below the gear case (10) so as to be able to rotate around the outer periphery of the ring rail B (9) together with the gear case (10), and the upper part of the gear case (10) is connected to the outer peripheral gear (5) of the ring rail A (6). The gear meshes with a drive gear (not shown) that is substantially inserted into the gear case (lO), is held on the inner periphery of ring rail A (6) and ring rail B (9), and is moved along ring rail A (6). An outer peripheral rack gear (1) rotatably provided on the outer periphery of the ring rail B (9)
1) is a mechanism that can be rotated in one piece.

The cutter part (3) has a rotating disc-shaped cutter (13) and a cutter guard (1), which are movable up and down at the upper end of the engine's gear case at a cutter part fulcrum (12) and are placed in contact with each other in the tangential direction around the tree trunk.
4), and the details of these structures will be described later.

The inner surface of the support (8) is attached with a spring etc. to attach the tree trunk (15) &
A press-supported drive shaft (4) is arranged, in this case consisting of a rubber track. The power of the drive @ (4) meshes with the outer rack gear (11) that rotates together with the gear case (lO) of the engine (2).The pinion gear (16)
) at the top from the drive reducer (17) to the transmission shaft (1
8) transmits rotation to the caterpillar drive wheel (4).

Raise and lower the pruning machine body.

The details of the blade part (3) are shown in the cross-sectional view of Figure 2.
The blade gear case (19) is extended from the engine gear case (10) so that the outer peripheral blade of the disc-shaped blade 1 (13) comes into contact with the tree trunk (15) in a substantially tangential direction.
+Bevel gear (21) (22) from shaft (20)
Apply power (i<) to the cutlery shirt 1-(23). Then, attach the cutter guard (14) to the cutter gear case (19) so that the bottom surface of the cutter guard (14) is almost the same as the bottom surface of the cutlery. The gear case (19) for the cutter is pressed against the outer periphery of the tree trunk (15), and with the bottom surface of the cutter and the bottom of the guard both pressed against the outer periphery of the tree trunk, it is rotated around the tree trunk, and the branch (24) is moved around the tree trunk. The blade is cut from the root.Also, the blade part is designed to be able to swing up and down on the fulcrum (12), but this requires a slightly lower driving force than the driving force of the drive shaft (4). It is elastically supported to the extent that it can swing up and down.

The blade part (3) is rotated by the engine (2) and the machine frame (1)
The blade (3) rotates around the trunk of the tree together with the engine while rising, so the blade (3) follows a spiral trajectory at the same pitch as #lI! i? It moves up the outer periphery and accurately contacts the branch (24) to cut the branch. Engine (2) Gear case (1
0) and a plurality of blade parts (3) at equal intervals on the machine frame (1),
For example, if two units are installed, it will be possible to work at twice the lifting speed using the double screw principle. Alternatively, a gear case without an engine whose rotation is transmitted by a flexible shaft from a gear case (lO)
It is also possible to increase work efficiency by similarly providing a cutter section (equivalent to cutter section (3)) and a cutter section (equivalent to cutter section (3)).

Since the automatic pruning machine of the present invention has the above-mentioned structure, the frame and drive mechanism of the pruning machine are not only simpler than those of conventional ones, but also because a disk-shaped cutter is used for the cutter part. This eliminates the drawbacks of the conventional chain saw set and makes it possible to automatically produce high-quality knotless lumber without manual labor.

[Brief explanation of the drawing]

Figure 1 is an overall perspective view of the automatic pruning machine attached to the tree trunk, Figure 2
The figure is a longitudinal cross-sectional view of the blade part. (1) Machine frame (2) Engine (3) Cutting tool (4) *Driving wheel (5) Outer gear (6) Ring rail A (7) Lower ring (8) Support column (9) Ring rail B (10) Engine gear case (11) Outer rack gear (12) Cutting tool fulcrum (13)
Rotating disc-shaped cutter (14) Cutler guard (15) Tree trunk (
17) Drive reducer (19) Gear case for cutlery (24) Applicant above technique: Kurtz Kikai Co., Ltd. Agent Patent attorney Hirozo Mori

Claims (1)

[Claims] 1.In an automatic pruning machine, the main body of the pruning machine is lifted and lowered while being held from around the tree trunk by a drive shaft, and the cutter installed at the top of the main body is rotated around the tree trunk to cut the tree. A cutter guard is provided which is placed in contact with the circumference of the tree trunk in the tangential direction and whose bottom surface is approximately the same as the bottom surface of the disc-shaped cutter. An automatic pruning machine that rotates along the surrounding area.