JP3337968B2 - Tree transplanter - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a transplanter capable of digging a hole at a transplant destination , root cutting of a transplant tree, and excavation and transportation.

[0002]

In order to transport a standing tree for transplanting, the root of the tree is dug down from the periphery, the overhanging root is cut, the root is formed into a spherical shape, and the root is covered with a como or sheet. It is usually done after protecting and tying it with a rough rope. Excavator buckets and similar attachments are used as excavation means around trees. However, when the trunk diameter exceeds 10 cm, it becomes difficult to dig at a stretch, and the spherical finish of the root has to rely on humans. It is necessary to dig a large hole beforehand, and the longer the trunk diameter, the longer the work.

[0003] The present invention provides an apparatus applicable to transplanting a tree having a relatively large trunk diameter. The apparatus performs excavation around the root, cutting and spheroidal shaping of the root at the same time, and further transport or loading as it is. In addition to being able to dig a hole at the transplantation destination, it can be sized in accordance with the size of the root.

[0004]

The transplanter according to the present invention is configured as follows. A pair of arc-shaped guide frames are fixedly opposed to each other on both front sides of a base frame attached to an arm tip of a construction machine such as a hydraulic shovel, and have a cutout opening for inserting a trunk of a tree into the guide frame. A C-shaped sleeve is fitted and supported vertically with the opening positioned forward. Rotating means for reciprocatingly rotating the sleeve in the circumferential direction along the guide frame, for example, a pair of hydraulic cylinders pivotally connected to the rear of the sleeve, are provided at the rear of the C-shaped sleeve. It is provided between them. Further, a ball gate is provided in the C-shaped sleeve in which a pair of hemispherical halves pivotally attached to a lower rear edge of the sleeve and a lower edge of the opening side end are provided opposite to each other. Is connected to a piston rod of a hydraulic cylinder pivotally supported by a bracket suspended from an upper edge of the sleeve. A cutting blade for root cutting is formed at the lower edge of each of the pair of hemispherical halves. When each hemispherical half is at the highest position, it becomes a cutting edge of the sleeve, and the reciprocating rotation of the sleeve revolves. Excavation and horizontal root (support or side root) cutting are performed, and after reaching a predetermined depth, the hydraulic gate for opening and closing the ball gate is operated to close the base so as to scoop up the root. Of the root of the tree is cut together with the cutting. If the root is completely cut, it can be lifted and moved by the arm as it is, but it can be easily pulled out even if a part of the vertical root remains without being cut. The digging of the transplanting destination is exactly the same as the root cutting operation of the standing tree. While holding the cutting blade at the top and pushing down the entire device into the soil at a predetermined location, the C-shaped sleeve is almost closed at the angle between the openings. Excavation is performed by reciprocating a half angle, and when a predetermined depth is reached, the ball gate is closed and soil in the sleeve is scooped. The size of this hole is substantially the same as the diameter of the root to be transplanted, so that the transplanting operation can be performed smoothly. In addition, the diameter and the pushing depth of the C-shaped sleeve are selected according to the tree and the trunk diameter, and a transplanter suitable for this is mounted on the working vehicle.

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In the drawings, 1 is the ground, 2 is a standing tree, 3 is a trunk, 4 is a root, 5 is a side root, and 6 is a cut root. Reference numeral 11 denotes the device of the present invention, which is attached to the tip of the work vehicle arm 10. 12 is a base frame, 13 is a mounting bracket, 14 is a holding arm projecting from both front sides of the base frame, 15 is a pair of opposed arcuate guide frames, and 16 is a guide groove. 17 is a notch opening 1
8 is a C-shaped sleeve having a flange 19 protruding from an upper outer peripheral wall of the sleeve and fitted in the guide groove 16 and supported by the guide frame 15. As shown in FIG. 8, a pair of hydraulic cylinders 20, 21 are pivotally connected to the inner walls 12a, 12b of the base frame, respectively, and the ends of the respective piston rods are pin-connected to the rear portion 22 of the C-shaped sleeve, so that the sleeve is reciprocated. Make up the device. Reference numerals 25 and 26 denote a pair of hemispherical hemispheres, which are located in the sleeve so as to face each other.
a, 25b and 26a, 26b pivotally open and close to form a ball gate 27. 28,29
Is a chevron or corrugated side root cutting blade formed along the lower edge of each half. Although the mounting mode of the cutting blade is arbitrary, FIG.
As shown in FIG. That is, the rear half portions 28a and 29a of the cutting blade are close to and oppose when closed, and the front half portions 28b and 29b are open toward the sleeve cutout opening. Reference numerals 30 and 31 denote hydraulic cylinders for opening and closing the respective halves of the ball gate 27, and the trunnions 32 and 33 are pivotally supported by brackets 34 and 35 fixed to the inner wall of the sleeve. The tip 36, 37 of the piston rod of each cylinder is a hemisphere half 2 respectively.
Pins are connected to brackets 38 and 39 formed on the upper edges of the upper and lower ends.

[0006] The transplanter described above positions the standing tree 3 in the C-shaped sleeve 17 and then pushes down the sleeve and alternately operates the hydraulic cylinders 20 and 21.
By rotating the C-shaped sleeve back and forth more than the opening width of the opening 18, the cutting blades 28 and 29 at the lower edge of the hemispherical half body are rotated to cut the side roots projecting around. In this device, the lower end of the sleeve abuts on the shoulder 40 of the cutting blade and pushes down the cutting blade, so that the cutting force of the cutting blade is improved. Can be cut by performance. In order to reduce the rotational resistance of the sleeve, both side edges 17a of the opening of the sleeve and the opening end side of the hemispherical half are preferably formed in a knife-edge shape as shown in FIG. When a predetermined depth is reached, the hydraulic cylinders 30, 31 are actuated to push the hemispherical halves 25, 26 into the ball gate 27.
By closing the root, the root below the root is cut and the root is formed into a hemispherical shape. In this process, the root can be cut by further rotating the C-shaped sleeve,
Even if a part of the root in the vertical direction remains, the extraction operation is possible and can be moved as it is. At the transplant destination, the root can be inserted together with the C-shaped sleeve into a hole previously dug by the same device, and the ball gate 27 can be opened while the sleeve is pulled out to automatically transplant.

[0007]

The transplanter of the present invention is freely movable by being attached to a working vehicle, and can be applied to standing trees on a slope. Also,
Lateral roots, which resist particularly when pulling out a tree, can be completely cut off, and since the roots are formed at the same time, the working time can be greatly reduced. Furthermore, since the hole to be transplanted can be prepared by excavating the hole with the same machine, the transplanting operation becomes extremely simple. In addition, since the transplanting machine is attached to the tip of the arm by pin connection, replacement and detachment can be performed very easily. .

[Brief description of the drawings]

FIG. 1 is a side view before a tree trunk is inserted into a device of the present invention.

FIG. 2 is a side view showing a state where a trunk is inserted.

FIG. 3 is a side view showing a state in which a sleeve of the machine is pushed down in the soil.

FIG. 4 is a plan view showing the relationship between the trunk of the tree and the machine.

FIG. 5 is a side view of a root cutting completion state.

FIG. 6 is a plan view of the device showing a reciprocating rotation range of the sleeve.

FIG. 7 is a side view showing extraction of a tree root.

FIG. 8 is a plan view of the base frame with an upper cover removed, showing a rotation of a C-shaped sleeve with respect to an arcuate guide frame and a reciprocating rotation mechanism.

FIG. 9 is a rear view of the device.

FIG. 10 is a half sectional view of a C-shaped sleeve.

FIG. 11 is a cross-sectional plan view of the lower edge of the C-shaped sleeve when the ball gate is closed.

DESCRIPTION OF SYMBOLS 3 Stand of Tree Trunk 4 Root 5 Side Root 6 Cutting Root 10 Work Car Arm 11 Transplanter 12 of the Present Invention 12 Base Frame 13 Mounting Bracket 14 Holding Arm 15 Arc Guide Frame 16 Guide Groove 17 C-Shaped Sleeve 18 Notch Opening Part 19 Flange 20,21 Hydraulic cylinder 22 Rear pivotal connection part 25,26 Hemisphere half body 27 Ball gate 28,29 Cutting blade 30,31 Hydraulic cylinder 38,39 Bracket

Claims (1)

(57) [Claims] 1. A fitting an arc-shaped guide frame which is fixed to the holding arm projecting from the front sides of the base frame attached to the work vehicle arm tip, a guide groove provided in the inner periphery of the guide frame A C-shaped sleeve that is held and has an opening at the front, and a hydraulic cylinder pin-connected to the rear of the C-shaped sleeve
And a ball gate composed of a pair of hemispherical halves pivotally attached to the lower edge of the rear end of the C-shaped sleeve and the lower edge of the opening side end, respectively. A root cutting blade is provided and a bracket fixed to the inner wall of the C-shaped sleeve is provided at the center of the upper edge of each hemisphere half.
A tree transplanting machine in which a pair of opening and closing hydraulic cylinders are connected via a switch.