JP2006314254A - Digging groove forming machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a dug groove-forming machine intended for decreasing labor and time required for tree transplanting work. <P>SOLUTION: The dug groove-forming machine is used for forming a dug groove 33 around the root part of a tree 32 in tree transplanting work for digging the tree up by the roots and transplanting the tree to another place. The dug groove-forming machine is such that a pair of scissors-like shearing devices 4 are provided in a freely openable closable manner at the end of the arm 3 of a heavy machine in a direction crossing the arm at right angles, the center of opening and closing of the shearing device is biased from the end of the arm toward a direction crossing the arm at right angles and the shearing device is connected to the end of the arm through a horizontal rotating mechanism. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a digging groove forming machine used to form a digging groove around a tree root in a tree transplanting operation in which a tree is dug from a root and transplanted to another place.

  Conventionally, tree transplantation work has been performed in which trees are dug from the root and transplanted to another place, as in the case of transplanting trees in the mountains to an urban park.

  This tree transplanting operation has been performed as follows (for example, see Patent Document 1).

  First, using a tree transplanter in which a substantially box-shaped bucket with the front and upper sides opened at the tip of an arm of a heavy machine, the debris on the front side of the tree to be transplanted is dug out.

  Next, a digging groove is formed in the left and right side of the tree to be transplanted and the soil behind the digging groove using a digging groove forming machine having a sharp rod-like body attached to the tip of a heavy machine arm.

  Next, using the bucket of the tree transplanter, the tree to be transplanted is dug from the ground together with the earth and sand adhering to the root.

  Then, the excavated tree is transferred from the bucket to the loading platform of the transport truck, transported to another place by the transport truck, and then transferred again from the loading platform of the transport truck to the bucket of the tree transplanting machine, and the tree transplanting machine to the transplanting site Place the tree with the soil at the root in the bucket and transplant the tree.

In this tree transplanting operation, when forming a digging groove around the tree to be transplanted, the tip of the sharp rod-shaped body is moved by operating the arm of a heavy machine, so that it is substantially A letter-shaped digging groove was formed.
JP 2004-267040 A

  However, in the above-described conventional tree transplanting work, a dug groove was formed around the root of the tree by operating the arm of a heavy machine to move the tip of the sharp rod-like body. When stones exist, it was difficult to form a digging groove smoothly.

  Therefore, in the conventional tree transplanting work, the operator requires skill and the work requires a great deal of time and labor.

  Therefore, in the present invention according to claim 1, a digging groove forming machine for forming a digging groove around the root of a tree in a tree transplanting operation for digging a tree from the root and transplanting to another place, A pair of hook-shaped shear blades are provided at the tip of the arm of the heavy machine so as to be freely opened and closed in a direction perpendicular to the arm.

  In the present invention according to claim 2, in the present invention according to claim 1, the opening / closing center of the shearing blade is biased from the tip of the arm in a direction perpendicular to the arm.

  Further, in the present invention according to claim 3, in the present invention according to claim 1 or 2, the shear blade is connected to the tip of the arm via a horizontal rotation mechanism.

  And in this invention, there exists an effect described below.

  That is, in the present invention according to claim 1 is a digging groove forming machine for forming a digging groove around the root of a tree in a tree transplanting operation for digging a tree from the root and transplanting to another place, Since a pair of hook-shaped shearing blades are provided at the tip of the arm of the heavy machinery so as to be openable and closable in a direction perpendicular to the arms, even if there are roots or stones around the tree to be transplanted, the shearing blade breaks. It is possible to easily form a digging groove in a tree transplanting operation.

  Further, in the present invention according to claim 2, since the opening / closing center of the shearing blade is biased in the direction perpendicular to the arm from the tip of the arm, the arm of the heavy machinery is moved up and down on the side of the tree to be transplanted. Thus, the digging groove can be formed immediately after the tree, so that it is possible to prevent the arm from colliding with the tree and damaging the tree when the digging groove is formed.

  Further, in the present invention according to claim 3, since the shearing blade is connected to the tip of the arm via the horizontal rotation mechanism, the horizontal rotation mechanism can be used without moving the heavy machinery itself when forming the digging groove. By simply rotating the shearing blade, a digging groove can be formed around the tree to be transplanted, and the digging groove forming operation can be facilitated.

  The digging groove forming machine according to the present invention is used for tree transplanting work such as digging a tree together with the earth and sand of the root part from the ground, and then planting the excavated tree together with the earth and sand of the root part in another place. It is used to form a digging groove around the root of a tree when digging together with the earth and sand from the ground.

  Hereinafter, a specific structure of the digging groove forming machine according to the present invention will be described with reference to the drawings.

  As shown in FIG. 1, the digging groove forming machine 1 has a shearing device 4 connected to a distal end portion of an arm 3 of a heavy machine 2 via an attachment 5.

  The specific structure of the shearing device 4 and the attachment 5 will be described. The shearing device 4 includes a pair of front and rear triangular plate-like supports at the bottom of a horizontally long rectangular plate-like base body 6 as shown in FIGS. 7 and 8 base ends are attached with a gap in the front and back direction.

  As shown in FIG. 2, the supports 7 and 8 are each formed of a substantially triangular plate having its apex shifted from the central portion to the lower left portion when viewed from the front.

  The shearing device 4 is rotated in a state where the base ends of the pair of front and rear substantially triangular plate-like shearing blades 9 and 10 are in front and back surface contact with the top of the base body 6 shifted to the left side when viewed from the front. It is rotatably attached via a shaft 11.

  The shearing blades 9 and 10 have a sharpened blade portion 12 formed on one side of the inner side, and are opened and closed left and right around the rotation shaft 11.

  The shearing device 4 rotatably attaches the distal ends of the cylinder rods 15 and 16 of the hydraulic cylinders 13 and 14 to the left and right tops of the shearing blades 9 and 10, while hydraulically attaches to the base ends of the supports 7 and 8. The base end portions of the cylinders 13 and 14 are rotatably attached, and the shearing blades 9 and 10 are opened and closed by the expansion and contraction of the hydraulic cylinders 13 and 14. In the figure, reference numerals 17 to 20 denote connecting pins.

  Next, the structure of the attachment 5 will be described. The attachment 5 is attached to the upper part of the base body 6 of the shearing device 4 so as to be shifted to the right side of the central portion as shown in FIGS.

  In this attachment 5, a left / right swing mechanism 34 is attached to the top of the base body 6, a horizontal turning mechanism 21 is attached to the top of the left / right swing mechanism 34, and a connection joint 22 is attached to the horizontal turning mechanism 21. .

  The left and right swing mechanism 34 has a pair of front and rear triangular plate-like swing plates 35 and 36 attached to the upper front and rear portions of the base body 6, and a pair of front and rear substantially pentagonal supports at the distal ends of the swing plates 35 and 36. The distal ends of the plates 37 and 38 are connected to each other by a connecting pin 39 so as to be rotatable in the left-right direction, and a circular plate-like connecting plate 40 is attached between the base ends of the front and rear support plates 37 and 38. .

  Further, the left / right swing mechanism 34 is attached to the front and rear support plates 37, 38 so that the base end of the hydraulic cylinder 41 can be rotated left and right, and the swing plate 35, 36 is attached so that it can rotate left and right.

  As shown in FIG. 6, the left / right swing mechanism 34 swings the shearing device 4 left and right by expanding and contracting the cylinder rod 42 of the hydraulic cylinder 41 up and down.

  The horizontal rotation mechanism 21 has a cylindrical support 23 attached to the upper right side of the base body 6, and a cylindrical movable body 24 is attached to the support 23 so as to be rotatable in the horizontal direction. The base body 25 of the connection joint 22 is attached to the upper part of the base plate. The horizontal rotation mechanism 21 uses a known mechanism, and is configured so that the movable body 24 is horizontally rotated by a hydraulic motor housed in the support 23.

  As shown in FIG. 7, the horizontal rotation mechanism 21 drives the hydraulic motor to rotate the shearing device 4 in the horizontal direction.

  As shown in FIGS. 2 to 5, the connection joint 22 has a pair of left and right horizontally elongated rectangular plate-like brackets 26 and 27 attached to the upper left and right sides of the base body 25 to which the horizontal rotation mechanism 21 is attached. Between the brackets 26 and 27, a pair of front and rear columnar connecting pins 28 and 29 extended left and right are attached at an interval in the front and rear direction.

  As shown in FIG. 1, a connecting mechanism 30 attached to the tip of the arm 3 of the heavy machine 2 is detachably connected to the connecting joint 22.

  In this way, the digging groove forming machine 1 is attached to the tip of the arm 3 of the heavy machine 2 via the attachment 5 having the horizontal rotation mechanism 21 and attached to the shearing apparatus 4. A pair of bowl-shaped shearing blades 9 and 10 can be opened and closed in a direction perpendicular to the arm 3, and the rotating shaft 11 of the shearing blades 9 and 10 is attached to the left side of the base body 6, while the right side of the base body 6 is attached. By attaching the attachment 5, the open / close center of the shearing blades 9, 10 is biased in the direction perpendicular to the arm 3 from the tip of the arm 3.

  Then, as shown in FIG. 8, the dug groove forming machine 1 moves the shearing device 4 to a predetermined position by operating the arm 3 of the heavy machinery 2 (see FIG. 8A). The shearing blades 9 and 10 are opened and pressed perpendicularly to the ground 31 (see FIG. 8B), and then the shearing blades 9 and 10 of the shearing device 4 are pressed against the ground 31 and closed (see FIG. 8). 8 (c).) This forms a digging groove 33 around the tree 32.

  Thus, in the digging groove forming machine 1, since the pair of hook-shaped shearing blades 9 and 10 are provided at the tip of the arm 3 of the heavy machine 2 so as to be openable and closable in a direction perpendicular to the arm 3, transplantation is performed. Even if there are roots or stones on the ground 31 around the tree 32, it can be broken by the shearing blades 9 and 10, and the digging groove 33 in the tree transplanting operation can be easily formed.

  Further, in the digging groove forming machine 1, the opening and closing centers of the shearing blades 9, 10 are biased in the direction orthogonal to the arm 3 from the tip of the arm 3, so that the tree 32 to be transplanted as shown in FIG. 8. Since the digging groove 33 can be formed immediately after the tree 32 by raising and lowering the arm 3 of the heavy machinery 2 on the side of the arm 32, the arm 3 collides with the tree 32 when the digging groove 33 is formed, and the tree 32 Can be prevented beforehand.

  In the digging groove forming machine 1, since the shearing blades 9 and 10 are connected to the tip of the arm 3 via the horizontal rotation mechanism 21, the heavy machine 2 is moved when the digging groove 33 is formed. It is possible to form the digging groove 33 around the tree 32 to be transplanted by simply rotating the shearing blades 9 and 10 by the horizontal rotation mechanism 21 and to facilitate the forming operation of the digging groove 33. it can.

The side view which shows the digging groove forming machine which concerns on this invention. The front view which shows a shearing device. The same side view. The bottom view. FIG. Explanatory drawing which shows operation | movement of a left-right sway mechanism. Explanatory drawing which shows operation | movement of a horizontal rotation mechanism. Explanatory drawing which shows the formation operation of a digging groove.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Groove formation machine 2 Heavy machine 3 Arm 4 Shearing device 5 Attachment 6 Base body
7,8 Support 9,10 Shear blade
11 Rotating shaft 12 Blade
13,14 Hydraulic cylinder 15,16 Cylinder rod
17-20 Connecting pin 21 Horizontal rotation mechanism
22 Connecting joint 23 Support
24 Movable body 25 Base body
26,27 Bracket 28,29 Connecting pin
30 Coupling mechanism 31 Ground
32 Tree 33
34 Left and right swing mechanism 35,36 Swing plate
37,38 Support plate 39 Connecting pin
40 Connecting plate 41 Hydraulic cylinder
42 Cylinder rod

Claims (3)

A digging groove forming machine for forming a digging groove around the root of a tree in a tree transplanting operation in which a tree is dug from the root and transplanted to another place,
A dug groove forming machine characterized in that a pair of hook-shaped shear blades are provided at the tip of an arm of a heavy machine so as to be opened and closed in a direction perpendicular to the arm.   The digging groove forming machine according to claim 1, wherein the opening / closing center of the shearing blade is biased in a direction perpendicular to the arm from the tip of the arm.   The digging groove forming machine according to claim 1 or 2, wherein the shearing blade is connected to a tip of the arm via a horizontal rotation mechanism.