JP7108149B1 - Tools for cutting tree surfaces - Google Patents

Abstract

A tree surface cutting tool capable of easily forming grooves on the tree surface compared with conventional tools. A tree surface cutting tool (1) is a cutting tool for forming grooves on the surface of a tree, and is fixed to a handle (10) on a pillar and the handle (10) so as to cut in the axial direction of the handle (10). and a blade 20 projecting in a direction non-parallel to the , wherein the blade 20 is characterized by having a non-parallel portion. [Selection diagram] Fig. 1

Description

Article 30, paragraph 2 of the Patent Act applied Sold at Ushika, Tateshina-cho, Kitasaku-gun, Nagano Prefecture on November 30, 2021

Patent Act Article 30, Paragraph 2 applied Sold in Yamanouchi Town, Shimotakai District, Nagano Prefecture on January 18, 2022

Application of Patent Law Article 30, Paragraph 2 Sold in Taguchi, Saku City, Nagano Prefecture on January 29, 2022

The present invention relates to a tool for cutting tree surfaces.

As an example of a cutting tool for a power tool, which has both functions of forming a cut along the marking line and scraping off the inner portion of the marking line in the object to be cut, and capable of easily forming and scraping the cut, Patent document 1 has the following description.

A blade for an electric power tool is composed of a fixed portion that is detachably attached to an operating portion of a power tool body, and a blade body that is connected to this and has a blade portion for cutting an object to be cut. The tip of the blade body has an upper surface and a lower surface. Of these surfaces, at least the upper surface comprises a tip edge extending in a direction perpendicular to the direction of reciprocating motion of the operating portion, a pair of side edges extending in a direction perpendicular to the tip edge, and a pair of both ends of the tip edge. It has a pair of arcuate corners connected to the tip of each of the side edges, revealing a substantially T-shape. The tip edge, side edges and arc-shaped corners are continuous with the peripheral edge of the lower surface of the tip of the blade body through the tapered surface so that they form the blade.

JP-A-2000-263506

Generally, in orchards, it is impossible to completely prevent pathogens from entering trees, and fruit yields are greatly affected by treatments to remove pathogens that have entered trees. Become.

For example, apple trees are susceptible to scab, and one of the methods of treating the disease is to surgically scrape off the diseased part of the tree.

Conventionally, a single-edged hand tool or the like has been used to remove the above-described affected area. Further, instead of such a hand tool, it has been proposed to use a cutting tool that is detachably attached to an operating portion of an electric power tool body as described in Patent Document 1.

The flow of removal of the affected area using a hand tool is roughly the following procedure.

First, using the cutting edge of a hand tool, an incision is made around the affected area of the tree along the score lines made around the affected area. Then, using the cutting edge and side blades, the bark inside the incision is scraped off along with the affected area. In this way, the minimum necessary portion of the bark including the affected area is removed, the xylem is exposed on that portion, and the end face of the exposed xylem and bark is coated with a prescribed therapeutic agent to complete the treatment. .

Here, the formation of cuts along the above-described marking lines requires time and effort, and improvements have been sought.

On the other hand, it is conceivable to form marking lines by attaching a cutting tool such as that described in Patent Document 1 to an electric tool instead of a hand tool.

However, there is a problem that the cutting tool as described in Patent Document 1 requires an electric tool and cannot be easily procured.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a tree surface cutting tool that can easily form grooves on the surface of a tree compared to conventional tools.

The present invention includes a plurality of means for solving the above problems. One example is a cutting tool for forming grooves on the surface of a tree, comprising a columnar handle and a a V-shaped blade fixed and protruding in a direction non-parallel to the axial direction of the handle, the blade having a non-parallel portion.

According to the present invention, the work of forming grooves on the surface of trees can be performed more easily than before. Problems, configurations and effects other than those described above will be clarified by the following description of the embodiments.

1 is a side view showing a schematic configuration of an embodiment of a tree surface cutting tool of the present invention; FIG. 1 is a side view showing a schematic configuration of an embodiment of a tree surface cutting tool of the present invention, viewed from a different angle; FIG. FIG. 2 is a side view showing a schematic configuration of an embodiment of the tree surface cutting tool of the present invention from a different angle.

An embodiment of the tree surface cutting tool of the present invention will be described with reference to FIGS. 1 to 3. FIG. In the drawings used in this specification, the same or corresponding components are denoted by the same or similar reference numerals, and repeated description of these components may be omitted.

FIG. 1 is a side view showing a schematic configuration of the tree surface cutting tool of the present invention, FIG. 2 is a side view showing a state when viewed from an angle different from that of FIG. 1, and FIG. 3 is different from FIGS. It is a side view which shows a mode when it sees from an angle.

A tree surface cutting tool 1 shown in FIGS. 1 to 3 is a cutting tool for forming grooves on the surface of trees, and generally comprises a handle 10 and a blade 20 .

As shown in FIGS. 1 and 2, the handle 10 is a wooden cylindrical body having a large diameter portion 12 at one of its ends and a small diameter portion 14 near the end opposite to the large diameter portion 12 side. is formed. The material of the handle 10 is not limited to wood, and other materials such as metal can be used. Also, the shape does not need to be cylindrical, and may be prismatic. If the handle 10 is made of a strong material such as metal, it can be shaped like a pipe.

As shown in FIG. 1, the large-diameter portion 12 is provided at the end opposite to the side where the blade 20 is fixed. It acts as a stopper when forming a groove using the , and has a role of preventing the tree surface cutting tool 1 from slipping out of the hand. The large-diameter portion 12 need not protrude to one side in the radial direction, and may protrude in any direction of 360 degrees, and is not particularly limited.

As shown in FIG. 2, the small-diameter portion 14 is a part of a cylindrical arc that has been cut away in order to fix a blade base portion 22 of the blade 20, which will be described later. , are formed at two 180-degree symmetrical positions.

As shown in FIGS. 1 and 3, the blades 20 have non-parallel portions. Specifically, it has a so-called approximately V shape, and is fixed by two sets of bolts 30 and nuts 32 to the small diameter portion 14 provided in a part of the cylindrical handle 10 in the blade base portion 22. there is For this purpose, the small diameter portion 14 of the handle 10 is provided with two diametrically penetrating holes (not shown).

The blade 20 need not be fixed to the handle 10 by two sets of bolts 30 and nuts 32, but may be fixed by one set of bolts 30 and nuts 32, or three or more sets of bolts 30 and nuts 32. However, it is preferable that there are two sets because it is firmly fixed to the handle 10 and there is no need to fix it more than necessary.

Moreover, the blade 20 need not be fixed by the bolt 30 and the nut 32, and can be fixed by various known methods such as welding.

As shown in FIGS. 1 and 2, the blade 20 has a blade portion 21 for forming grooves on the surface of the tree. 10 (that is, the side of the large-diameter portion 12), so that the farm worker presses the tree surface-cutting tool 1 of the present embodiment against the surface of the tree in which the groove is to be formed. A substantially V-shaped groove can be formed in one cutting operation by pulling downward with the .

As shown in FIG. 1, the blade 20 protrudes in a direction not parallel to the axial direction of the handle 10 when the tree surface cutting tool 1 is viewed from the longitudinal direction. It is fixed at an angle of 80 degrees to the

The fixed angle with respect to the handle 10 when the tree surface cutting tool 1 is viewed from the longitudinal direction does not need to be 80 degrees, and may be greater than 0 degrees and 90 degrees or less. Therefore, it is desirable that the angle is fixed at 45 degrees or more and 85 degrees or less.

Also, the blade 20 protrudes from the outer diameter portion of the handle 10 by a length substantially equal to the diameter of the handle 10 . The protruding length is not limited to this, but by protruding to approximately the diameter, the blade 20 does not get in the way when carrying, and a groove with a necessary and sufficient depth can be formed in one cutting operation. , preferably about a diameter.

Furthermore, as shown in FIG. 1, when the tree surface cutting tool 1 is viewed from the longitudinal direction, the blade 20 has a substantially L-shaped portion protruding from the outer diameter portion of the handle 10. . As a result, tree shavings are smoothly discharged from the open portion to the outside of the tree surface cutting tool 1. - 特許庁

The opening degree θ of the blade 20 shown in FIG. 3 is 30 degrees in this embodiment. However, the V-shaped opening degree θ need not be 30 degrees and is not particularly limited.

Note that the blade 20 is not limited to the V-shape, and may have other shapes such as a U-shape and a substantially U-shape. Alternatively, two linear or boomerang single-edged blades may be fixed to the handle 10 so as to form a substantially V-shape.

Next, the effects of this embodiment will be described.

The tree surface cutting tool 1 of the present embodiment described above is a cutting tool for forming grooves on the surface of trees, and includes a columnar handle 10 and a handle 10 fixed to the handle 10. The shaft of the handle 10 a blade 20 projecting in a direction non-parallel to the direction, the blade 20 having a non-parallel portion.

In this way, the blade 20 having non-parallel parts can form grooves in one cutting operation, so that the work efficiency is greatly improved, and the groove formation work on the surface of the tree is significantly improved compared to the conventional method. becomes much easier. In particular, it can be said that the tool is suitable for forming grooves on the surface of apple trees affected by rot.

In addition, since the blade 20 is V-shaped, a well-shaped groove can be formed in a single operation, and workability can be further improved.

Further, the blade 20 is formed on one end side of the handle 10, and the blade 20 has a blade portion 21 for forming a groove, which is located on the side of the handle 10 on which the blade 20 is provided. is formed on the opposite side, it is possible to reduce the burden on agricultural workers during cutting work.

In addition, the handle 10 has a large diameter portion 12 formed at the end opposite to the side where the blade 20 is fixed, so that the tree surface cutting tool 1 can be easily gripped and grooves are formed. It is possible to prevent the tree surface-cutting tool 1 from coming off at the time of cutting, and workability can be further improved.

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The present invention is not limited to the above embodiments, and various modifications and applications are possible. The above-described embodiments have been described in detail for easy understanding of the present invention, and are not necessarily limited to those having all the described configurations.

DESCRIPTION OF SYMBOLS 1... Tree surface cutting tool 10... Handle 12... Large diameter part 14... Small diameter part 20... Blade 21... Blade part 22... Blade base part 30... Bolt 32... Nut

Claims (3)

A cutting tool for forming grooves on the surface of trees,
columnar pattern,
A V-shaped blade fixed to the handle and protruding in a direction not parallel to the axial direction of the handle,
A tool for cutting a tree surface, wherein the blade has non-parallel portions. The tree surface cutting tool according to claim 1,
The blade is formed on one end side of the handle,
A tool for cutting a tree surface, wherein a blade portion for forming the groove is formed on the side opposite to the end portion side of the handle on the side on which the blade is provided. The tree surface cutting tool according to claim 1 or 2 ,
A tool for cutting a tree surface, wherein the handle has a large-diameter portion formed at the end opposite to the side where the blade is fixed.

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