JP2009131195A - Ditcher for transplanting tree - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a ditcher for transplanting a tree facilitating root cut around a root ball and digging down at its circumference while feeding power in a reduced space. <P>SOLUTION: The ditcher for transplanting trees is structured as follows: installing a power output section 8 on a two-wheel carriage 2 having a pair of handles 3 to transmit the power from the power output section 8 to a cutter 6 turnably pivoted around the carriage 2 at a position forward from tires 1 of the two wheels to regulate the incision of the cutter via positioning means. The positioning means includes a caster 9 positioned at the end of the carriage 2, and at an extended and/or desired position of the cutter 6. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention belongs to the field of tree transplantation.

Conventionally, various techniques have been proposed for securing root pots when transplanting trees. A large-scale transplantation device, for example, the technique disclosed in Japanese Utility Model Laid-Open No. 2-93948 (Patent Document 1) requires a large space for a working machine such as a bulldozer and is expensive. Further, the transplanting method proposed in Japanese Patent Application Laid-Open No. 11-243794 (Patent Document 2) as a technique for manually rooting requires a lot of labor for forming a root pot.
Japanese Utility Model Publication No. 2-93948 JP-A-11-243794

  In view of the above, the present invention seeks to provide a tree transplanting grooving machine in which the root cutting around the root pot is simple and the surrounding digging is easy to dig while saving power in a space-saving manner. To do.

According to a first aspect of the present invention, a tree transplanting groove cutting machine includes a power unit mounted on a two-wheel carriage having a pair of handles, and the power of the power section is freely rotatable to the carriage in front of the two wheels. It is transmitted to a cutter that is pivotally supported on the blade, and the cutting of the cutter is regulated by positioning means.
According to a second aspect of the present invention, in the tree transplanting grooving machine according to the first aspect, the positioning means comprises a caster provided on the extension of the cutter and / or at a required position at the tip of the carriage.

  According to the tree transplanting grooving machine of the present invention, since the root cutting around the root pot is made with a circular line of the required width in the radial direction by a space-saving power by simple hand pushing, the digging between them becomes easy, There is an effect that can save the root pot labor-saving. Further, since the positioning means for limiting the cutting of the cutter is provided at the tip of the carriage, excessive interference with the ground of the power transmission unit is eliminated, and safe grooving is performed.

  The relationship between the gantry and the power unit including the engine in the present invention is that the power unit is provided in front of the support shaft that supports the two wheels, and the weight of the power unit is also involved in the grooving of the cutter. The push-and-push operation by the handle is labor-saving, and a circular saw-tooth cutter is best in terms of root cutting, and other thick-walled tooth shapes are also available for use. The transmission of power to the cutter is not limited to the V pulley and the V belt, but can be replaced by a sprocket and chain, a timing pulley, a timing belt, or the like as a general power transmission means. In addition, the cover on the lower side of the power transmission part (below the carriage) can be inserted into and removed from the rotating shaft so that it can be opened and closed in half, with the hinge at the lower end as the center, in case of damage. Structure. As the positioning means, in addition to the casters, a wide ski plate shape is also used so as to reduce the contact pressure in the ground contact state so as not to sink into the ground.

  The tree transplanting grooving machine (hereinafter referred to as this grooving machine) A according to the present invention will be described with reference to an embodiment. As shown in FIGS. 1 and 2, one of the carts 2 that support the left and right tires 1. A pair of handles 3 are attached to the (left end), and the rotary shaft 5 supported on the bearing 4a of the bearing 4 provided at the left and right required intervals on the other (right end) has a circular saw tooth as shown in FIG. A cylindrical cutter 6 and a V pulley 7 for transmitting power to a rotating shaft 5 via a V belt 7 a are attached to a shaft, and a power unit 8 including an engine is mounted between the cutter 6 and the spindle of the tire 1. .

As shown in FIG. 4, the grooving machine A configured as described above is such that the power from the power unit 8 is transmitted to the V pulley 7 by the V belt 7 a of the power transmission unit 10, and the V pulley is pivotally supported. The cutter 6 coaxial with the shaft 5 rotates, and the cutter 6 is cut into the ground by the weight of the power unit 8 (including a part of the weight of the carriage) and the lifting force of the handle 3. At this time, the line 12 forming the root pot 11 around the tree T is set to the range because the diameter of the root pot 11 is generally 3 to 5 times the root diameter D of the tree 11.
Therefore, a groove having a groove cutting depth H (cutting limit depth of the cutter 6) is formed around the tree T along the line 12, and the root stretched around the tree T is also cut.
By the way, in order to prevent excessive contact of the power transmission unit 10 with the ground such as the cover 10a when grooving with a grooving depth H, the cutter 2 has a cutter as shown by the phantom line in FIG. A caster 9 as a positioning means or a wide ski plate (not shown) is attached on the extension of 6 and / or a required position.
Since the depth of the root pot 11 is generally 1.5 to 2.5 times the root diameter D of the tree T, if the grooving depth H is greater than (1.5 to 2.5) D, the radial direction of the line 12 Grooves are cut by the cutter 6 along the outer line 14 separated by the outside digging width W to be entered by a person, and the space between the digging W is dug with a scoop or the like. The root pot 11 is cut off from the ground by digging in and pushing down the trunk in the direction of the arrow as shown in FIG. If the root pot 11 is wrapped and protected with an appropriate sheet (not shown), the formation of the root pot 11 for transplantation is completed.
However, when the grooving depth H of the single grooving by the cutter 6 is shallower than the required depth (1.5 to 2.5) D of the root pot 11, the cutting process is performed in two or three stages. . In that case, the first digging width W is grooving the outer line 14 that circulates as much as required than the entire width L of the grooving machine A, digging and removing the soil between the two lines 12, 14, and then the second tier In this case, since both the wall surfaces 15 limit the grooving operation, for example, if grooving is performed as close as possible to the inner wall surface 15, the grooving of the outer line 14 is close to the wall surface 15 in an inverted state. The groove 13 is cut into a position and a person enters it, or the convex recess 13 is dug down under the machine width L of the grooving machine A, and when the required depth is secured, the root is started from the lower end of the inner wall 15. A scoop is inserted toward the bottom of the pot 11 and the soil around the periphery is removed. As shown in FIG. 7, if the tree trunk is pushed down in the direction of the arrow in the same manner as described above, the root pot 11 is separated from the soil. If you protect the area around the root with a sheet (not shown) Preparation of planting is completed.
In this grooving machine A, as shown in FIG. 6, the tire 1 is arranged inside the carriage 2 in order to improve the workability when the machine width L is narrowed as much as possible and dug down into two or three stages. Can also be provided.

  According to the tree transplanting grooving machine of the present invention, a root pot can be secured with a simple rooting that is inexpensive and can be turned, so it is generally convinced that the industry widely involved in tree transplantation is widely accepted. .

The front view of the grooving machine A for tree transplanting of this invention. The front view of FIG. FIG. 2 is an enlarged view illustrating a portion AA in FIG. 1. Explanatory drawing which shows the groove cutting in root turning. Explanatory drawing when grooving the periphery of the tree T in root turning. The top view which shows the other aspect of the grooving machine A for tree transplants of this invention. Explanatory drawing of the state in which the root pot 11 is ensured.

Explanation of symbols

1: Tire 2: Cart 3: Handle 4: Bearing part 4a: Bearing 5: Rotating shaft 6: Cutter 7: V pulley 7a: V belt 8: Power part 9: Caster 10: Power transmission part 11: Root pot 12: Line 13: recess 14: outside line 15: wall surface D: root diameter H: groove cutting depth L: machine width T: tree W: digging width A: tree cutting groove cutting machine

Claims (2)

  A power unit is mounted on a two-wheel carriage having a pair of handles, and the power of the power section is transmitted to a cutter pivotally supported on the carriage in front of the two wheels, and the cutting of the cutter is performed by positioning means. Regulating tree transplanting grooving machine.   2. The tree transplanting grooving machine according to claim 1, wherein the positioning means comprises a caster provided on the extension of the cutter and / or at a required position at the tip of the carriage.

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