JP5873896B2 - Cutting tool for splitting and splitting machine using the same - Google Patents

Description

  The present invention relates to a wood cutting tool and a wood cutting machine, and in particular, the wood cutting blade is attached to a power shovel and is pressed against a wood mouth supported in the vertical direction to push it down so as to split it. The blade-cutting machine relates to a wood-cutting machine that can be split by attaching the blade tool to a power shovel.

   Conventionally, as described in Patent Documents 1 to 3, the wood splitting machine has a structure in which the wood is fixed in the horizontal direction and the wood cutting blade is moved in the horizontal direction with a hydraulic cylinder or the like, A structure in which the split blade is fixed and the scissors are split by moving them laterally with a hydraulic cylinder or the like is generally used. However, such a wood splitting machine is configured to be able to transport the wood material in the lateral direction, or is configured to be able to transport the tool post with the wood cutting blade attached in the lateral direction, both of which are easily horizontal and structurally complex. There was a problem that the price was high. In addition, there has been a problem that almost no proposal has been made on the chopping blade.

JP 2010-99869 A JP 2010-99868 A JP 2004-136473 A

  The problem to be solved is that the conventional wood splitting machine is generally a horizontal type, and its structure is likely to be complicated and expensive.

The present invention has been made for the purpose of solving such problems, and is configured as follows.
A A cutting tool for splitting that is attached to a power shovel so that it can be split, and the base end of the cutting tool body made of a plate-shaped steel material having a predetermined thickness and a predetermined width is provided at the base end of the cutting tool body. of an extension of the substantially central portion of the horizontal width, shaft-like mounting portion for mounting the power shovel blade portion is formed on the entire front end of the cutting tool body with is projected, moreover the blade section the cutting tool body It is formed so that it protrudes from the base end by a certain distance in the vicinity of the central part of the width, and the apex angle forms an obtuse angle from the apex side toward both sides, and it is possible to divide the birch material into two in one erecting process In the above-described cutting tool for splitting, the cutting tool body has a predetermined lateral width that extends in the horizontal direction from the center line of the shaft-shaped mounting portion and can split a rod material of a predetermined diameter into two, and has a shaft-shaped mounting The upper end of the outer part is from the side on both sides of the blade body The shaft-shaped mounting portion has a slanted portion formed so as to be connected to the outer surface of the lower-side shaft-shaped mounting portion with a gentle inclination with respect to the axis of the shaft-shaped mounting portion, so that the shaft A cutting tool for splitting in which the vicinity of the tip of the attachment part is in contact with the corner of the split part of the rod material to prevent the blade body from descending and hinder the splitting process.
B. A cutting tool for splitting according to paragraph A, wherein the cutting tool body has a lateral width of 500 mm and is suitable for splitting a cutting material having a diameter of 450 mm or more.
In the cutting tool for cutting according to section A, the shape of the cutting tool body is changed to be the first cutting tool body, and the first cutting section body is smaller in width than the cutting tool body described in the first section. The length from the base end to the top is slightly lengthened or shortened, the apex angle is about 90 to 110 degrees, the tip is sharpened, and the first blade body is perpendicular to both the front and back sides from the center. A cutting blade for splitting, in which a small second blade body is protruded in the direction so that the split material divided by the first blade body can be further divided into two in the same splitting process.
In the cutting tool for cutting described in section DC, the first cutting tool body is about 60% smaller in width and about several% shorter from the base end to the top than the cutting tool body described in the first section. Further, a cutting tool for splitting, in which the apex angle is as small as about 90 to 110 degrees and the tip is pointed, and a small second cutting tool main body is protruded from the center of the cutting tool main body in a right angle direction on both the front and back sides.
In the cutting tool for cutting according to E D, the second cutting tool body that protrudes perpendicularly from the center of the first cutting tool body on both the front and back sides has a protrusion amount in the outward direction with respect to the axis of the mounting portion. The projection amount of the first blade body is about half of the protruding amount in the same direction, and the apex angle is set to an acute angle of 60 degrees, and the position of the entire blade edge of the second blade body is located behind the mounting shaft from that of the first blade body. A cutting tool for splitting, which is provided in a state of being slightly retracted to the end side, so that the quadranting process by the second cutting tool body starts after the two splitting process by the first cutting tool body.
A wood-splitting machine in which the wood-cutting blade according to any one of items F A to E is attached to a power shovel so that it can be split.
Here, in section A, “I made it possible to divide the wood into two in one wood splitting process” does not always mean that the wood can be divided in this way, and sometimes the wood is twisted because it is a natural wood. Some of them may be bent, knotted, or particularly hard, so it may not be possible to divide the birch material in one halving process. In addition, in section B, “appropriately suitable for cracking of wood with a diameter of 450 mm or more” means that cracking of wood with a diameter of 450 mm or more can be suitably performed. Does not mean that can't be done at all.

Since this invention is comprised in this way, there exist the following effects.
The wood splitting machine of the present invention can be configured simply by attaching the blade for wood splitting of the present invention to a power shovel owned by the company. Therefore, there is an advantage that the wood splitting machine can be configured and used at a low cost with a simple structure. Also, even if you borrow a power shovel from others, the same effect can be obtained without requiring much expense. Since it is only necessary to borrow it when necessary, it is convenient that it is not necessary to store it in a warehouse or the like when not in use, as in the case of a conventional dedicated wood splitting machine. Furthermore, the conventional wood splitting machine is horizontal and heavy, and is not easy to move. However, since the present invention uses a power shovel, it can be easily moved by a self-propelled device such as a caterpillar or a wheel.
Moreover, since the cutting tool for splitting of the present invention is provided with a shaft-like mounting portion (handle portion) at the base end portion thereof, the handle portion may be locked by being fitted into the attachment mounting hole of the power shovel. Installation is simple. Moreover, since the handle | pattern part is lengthened suitably, even if it is a long eaves, it can be divided into two (it is divided into four if a cutting tool is replaced).

(A) is a front view showing an embodiment of the cutting tool for splitting of the present invention, (B) is a right side view of the embodiment, (C) is a plan view of the embodiment, and (D) is an embodiment of the embodiment. It is a bottom view. (A) is a front view showing another embodiment of the cutting tool for splitting of the present invention, (B) is a right side view of the embodiment, (C) is a plan view of the embodiment, and (D) is a diagram ( It is RR sectional drawing in a). It is explanatory drawing which shows the use condition of the Example of the wood splitting machine of this invention. (A) is a front view with a dimension symbol showing a specific embodiment of the cutting tool for splitting of the present invention, (B) is a right side view with a dimension symbol of the embodiment, and (C) is a dimension of each part. Is a dimension table filled with (B) is a sectional view taken along the line SS in FIG. (A), and (C) is the same example. (D) is a dimension table in which dimensions of each part are written, and (e) is a partial sectional view showing a modification of the embodiment.

The conventional wood splitting machine requires a lateral feed device that holds the wood material sideways and moves the wood material and the blade sideways, which is heavy and not easy to move, requiring a large installation space.
The present invention performs the operation of erecting the eaves and dividing the eaves so that the space required for eaves splitting work is small, and pushing down the eaves cutting tool pressed against the eaves with the function of the power shovel. In order to facilitate the movement, a self-propelled device of a power shovel is used.

  1 is a cutting tool capable of splitting two pieces of scissors, and is attached to a power shovel at a base end portion of a cutting tool body 12 made of a steel material having a predetermined width and a predetermined thickness. The pattern part 14 as a part is projected and comprised. The handle portion 14 is positioned on an extension line of the center line of the blade body 12, and the blade portion of both blades (double blades) is formed on the entire front end portion of the blade body 12, and the blade portion is located near the substantially center portion of the blade body. It protrudes from the base end by a certain distance, and the apex angle forms an obtuse angle from the apex toward both sides. A reinforcing plate 16 is attached between the blade body 12 and the handle 14. The handle | steering-wheel part 14 is made into the dimension which can be fitted in the attachment attachment hole of a power shovel. The handle 14 is fixed by inserting it into the attachment mounting hole of the excavator and locking it with a screw. This constitutes a wood splitting machine. Although it depends on the tree species, when the wood cutting tool is lightly pressed against the wood mouth of a wood of a predetermined length (for example, 1 m) and pressed down a certain distance (for example, 20 to 40 cm), it is divided into two parts to the bottom of the wood. It is sufficient that there is a slight margin between the wood mouth of the wood and the lower end of the attachment mounting portion of the power shovel at that time.

  FIG. 2 shows a cutting tool 20 for splitting a rod material into four pieces, and a handle 24 protrudes from the center of the base end portion of the first cutting tool body 22, and the configuration so far differs in shape. Is similar to the cutting tool 10 for cutting, except that a small second cutting tool body 26 protrudes perpendicularly on both sides of the center of the first cutting tool body 22. Since the wood cutting tool 10 is made of a wood material of 40 cm or more, and the wood cutting blade tool 20 is made of a wood material having a diameter of less than 40 cm, the dimensions of each part of the wood cutting blade 20 are small. Since the purpose of use is different from two or four parts of wood, the partial shape is also different. That is, the first cutting tool main body 22 is smaller than the cutting tool main body 12 by about 60% in width, the length from the base end to the top is about several% shorter, the apex angle is slightly smaller, and the tip is sharpened. Furthermore, the second blade body 26 that protrudes from the center of the first blade body 22 in the direction perpendicular to the front and back sides of the first blade body 22 is of a small size because it further divides the rib material divided into two. The length of the handle 24 is determined in the same manner as in the case of the handle 14 described above.

The embodiment configured as described above is used as shown in FIG. 3, for example.
First, the cutting blade 10 (or 20) is attached to the attachment mounting portion V provided on the distal end side of the arm T of the power shovel. Next, the brazing material W is held on the ground GL. Holding may be performed manually, but a support device or the like made separately may be used. Next, the operation part (not shown) of the power shovel is operated, and the blade part of the wood cutting tool 10 (or 20) is lightly pressed against the wood mouth of the wood material W, and then pushed down in the direction of the arrow U. Is divided into two (or divided into four). This completes the wood splitting process.
Since the embodiment of the present invention is configured as described above, the following effects can be obtained.
-If an existing power shovel is used, a wood splitting machine can be configured simply by manufacturing a wood cutting blade.
-Since there are few additional parts to manufacture, the structure is simple, there is little increase in weight, and costs can be reduced.
・ Since the work is done in a state where the wood is raised, the required work area may be small.
-Since the excavator's self-propelled device (caterpillar and wheels) can be used, it is easy to move.
・ Installation of the cutting tool for splitting is easy because it only has to be inserted into the attachment mounting hole of the excavator and locked.
・ Since the handle is made longer, it can be divided into two (even if the blade is replaced) even if it is long.
・ If you use a chopping tool for halving, you can divide it into four in one process, which improves work efficiency.

4 has a configuration similar to that of the cutting blade tool 10, and the relationship between the cutting tool body 32 and the cutting tool body 12 and the relationship between the handle portion 34 and the handle portion 14 are the same. . However,
Although the numerical value of the dimension of each part is determined for the wood cutting tool 30, according to this, there is a point which is partially different from the wood cutting blade 10 in the dimensional ratio.
Similarly, the cutting tool 36 for splitting shown in FIG. 5 has the same configuration as the cutting tool 20 for splitting, the relationship between the first cutting tool body 38 and the cutting tool body 22, the second cutting tool body 42, and the like. The same applies to the relationship between the second cutting tool body 26 and the relationship between the handle 40 and the handle 24. However, the numerical values of the dimensions of each part of the splitting blade tool 36 are also determined, but according to this, there are some differences from the splitting blade tool 20 in the dimensional ratio.
In an example of using a wood splitting machine for wood with a length of over 1m and a diameter of 45cm with ordinary miscellaneous wood, push the blade tip of the wood cutting tool 30 lightly against the wood edge of the wood standing on the ground, It was possible to divide into two in 30 seconds to 1 minute. Most of the time required was around 30 seconds or less. However, it took about a minute or so for a hard tree species like an oak tree.
Unlike the above, in the use example in which the wood splitting machine is used for the wood with a length of 1 m and the diameter of 45 cm or less with a normal miscellaneous tree, the blade cutting tool 36 is used, and the other cases are performed under the same conditions. I was able to divide into four by time. In the case of hard tree species such as oak trees, it was possible to divide into four in about 1 minute or a little more than the required time as described above.

FIG. 5 (e) shows a modification of the mounting state of the second blade body.
By the way, as shown in FIG. 5 (b), the wood cutting tool 36 is formed with two grooves orthogonal to the upper end of the handle 40, and the first blade body 38 is fitted into one of the grooves. In the modified example shown in FIG. 5 (e), the first upper end portion of the handle portion 41 is joined to the upper end portion of the handle portion 41 with a pair of second cutting tool bodies 42 fitted in the other grooves. Only one groove into which the cutting tool body 38 is fitted is provided, and another pair of second cutting tool bodies 44 is arranged on the side of the fitted first cutting tool body 38 and joined by welding or the like. As shown in FIG. 5E, the second cutting tool main body 44 is formed so that its bottom portion follows the curved surface of the upper end portion of the handle portion 41. In this way, it is possible to change to the state shown in FIG. 5 (e) instead of the combined state shown in FIG. 5 (b).

The cutting tool for splitting of the present invention is intended to be used by placing the cutting material upright, but may also be applied to a horizontal splitting device.

10% cutting blade 12Body body
14 handle part 20 cutting tool 22 first cutting tool body 24 handle part 26 second cutting tool body 30 cutting tool tool 32 cutting tool body 34 handle part 36 cutting tool 38 first cutting tool body 40 handle part 41 pattern (Modification)
42 2nd cutting tool body 44 2nd cutting tool body (modification)
T excavator arm U arrow V attachment mounting part W wood GL ground

Claims (6)

It is a cutting tool for splitting that is attached to a power shovel so that it can be split, and the base end portion of the cutting tool body composed of a plate-shaped steel material having a predetermined thickness and a predetermined width in the lateral direction has a on the extension of the substantially central portion of the width, the blade portion is formed on the entire front end of the cutting tool main body with the shaft-like mounting portion for mounting the power shovel is projected, moreover the blade section the lateral cutting tool body Near the center of the width, it protrudes from the base end by a certain distance, and the apex angle forms an obtuse angle from the apex to both sides, and it is possible to divide the brazing material into two in one splitting process. In the cutting tool for splitting, the cutting tool body has a predetermined lateral width extending in the lateral direction from the center line of the shaft-shaped mounting portion and capable of splitting a rod material of an intended predetermined diameter into two, and the shaft-shaped mounting portion. The upper end of the outer surface is located near both side surfaces of the blade body. The shaft-shaped mounting is performed during the downward splitting process by having a slope portion formed so as to be connected to the outer surface of the lower-side shaft-shaped mounting portion with a gentle inclination with respect to the shaft center of the mounting portion. A cutting tool for splitting, in which the vicinity of the tip of the part abuts against the corner of the splitting edge of the rod material to prevent the lowering of the blade body, and does not interfere with the splitting process. The cutting tool for splitting according to claim 1, wherein the cutting tool body has a lateral width of 500 mm and is suitable for splitting scissors having a diameter of 450 mm or more.    The blade for cutting according to claim 1, wherein the shape of the blade body is changed to be a first blade body, and the first blade body is smaller than the blade body according to claim 1. The length from the base end to the top is slightly lengthened or shortened, the apex angle is about 90 to 110 degrees, the tip is sharpened, and the first blade body is perpendicular to both the front and back sides from the center. A cutting blade for splitting, in which a small second blade body is protruded in the direction so that the split material divided by the first blade body can be further divided into two in the same splitting process. The blade for cutting according to claim 3 , wherein the first blade body is smaller in width by about 60% and the length from the base end to the top is shorter by about several% than the blade body in accordance with claim 1. Further, a cutting tool for splitting, in which the apex angle is as small as about 90 to 110 degrees and the tip is pointed, and a small second cutting tool main body is protruded from the center of the cutting tool main body in a right angle direction on both the front and back sides. 5. The cutting tool for splitting according to claim 4, wherein the second cutting tool body that protrudes in the direction perpendicular to the front and back sides from the center of the first cutting tool body has a protruding amount in the outward direction with respect to the axis of the mounting portion. The projection amount of the first blade body is about half of the protruding amount in the same direction, and the apex angle is set to an acute angle of 60 degrees, and the position of the entire blade edge of the second blade body is located behind the mounting shaft from that of the first blade body. A cutting tool for splitting, which is provided in a state of being slightly retracted to the end side, so that the quadranting process by the second cutting tool body starts after the two splitting process by the first cutting tool body. A cleaving machine that is capable of cleaving by attaching the cleaving blade according to any one of claims 1 to 5 to a power shovel.

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