JPH0428323B2 - - Google Patents

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a tree transplanting device, and more specifically, the present invention relates to a tree transplanting device. This relates to a tree transplanting device that cuts and transplants trees.

[Conventional technology] In the past, work such as digging up trees, loading them onto transportation equipment, unloading them, and replanting them was done manually.
Recently, this work has been carried out using existing machinery such as power shovels, chain blocks, or bulldozers. However, even if these machines are used, they are not originally designed for the purpose of transplanting trees, so it is difficult to dig, load, transport, unload, and plant the trees without damaging them. It was hot. In addition, work efficiency was poor in all aspects.

For this reason, the apparatus shown in FIGS. 6 and 7, for example, was invented as a machine exclusively for transplanting trees. This is an advanced conventional example, and FIG. 6 is an overall side view of the tree transplanting device, and FIG. 7 is a front view for explaining the tree digging state of the device. In the figure, 2 is a bulldozer, to which the transplanting device 1 is connected. The transplanting device 1 includes a frame 3 having an open front end so as to accommodate a tree 7. Then, attach claws 4 to the bottom of the left and right sides of the frame 3.
is provided in a fork shape. The claw 4 can be opened, closed, and rotated from a substantially horizontal position to a substantially vertical position relative to the ground G. 5 is its driving mechanism.

When using this device to dig out a tree 7, keep the claws 4 perpendicular to the ground G as shown in FIG. Hold it in a position where you can hold it. Then, the claw 4 is inserted into the ground G at the base of the tree 7, and the distal end of the root is cut by the forward and backward movement or rotational movement of the bulldozer 2. Next, when both claws 4 are rotated inward by the drive mechanism 5 and closed, the claws 4 that have stuck into the ground G to an appropriate depth dig into the base of the tree 7 from the bottom to the top. It turns out. After doing this, the implantation device 1 is raised by the bulldozer 2. The transplant device 1 is raised and lowered by the joint portion 6. That is, the joint portion 6 serves as a link mechanism between the bulldozer 2 and the transplanting device 1, and also serves as a mechanism for driving the transplanting device 1 up and down.

After the tree 7 is dug out and supported in this way, the bulldozer 2 is driven to transport the tree to the transplant destination, and the tree can be planted in the reverse order of digging. (Refer to Japanese Patent Publication No. 57-55371) [Problems to be Solved by the Invention] When digging up a tree using the above-mentioned conventional tree transplanting device, the nails are inserted into the ground at the base of the tree to be transplanted. Then, the claws are folded in and rotated inward to pull up the tree. However, with this method, roots that extend in the left-right direction can be cut with the claws, but roots that extend in the front-back direction cannot be cut. For this reason, trees cannot be easily pulled up. Depending on the conditions, inconveniences may occur, such as making it impossible to drive equipment, including bulldozers, which are automatic moving vehicles. Also, in order to cut the roots of a tree in the front and back directions, if you rotate the bulldozer and give the claws of the transplanting device an arcuate motion, even if the roots can be cut, they will have to be forcibly pulled out because they have grown deep into the ground. There were many problems such as being cut into pieces, causing damage, lots of soil falling off, being unable to be transplanted, and dying. Even if a handy cutter such as a chain saw or a jigsaw is used to cut these roots, the roots are severely damaged and problems remain, such as a poor survival rate of the tree.

SUMMARY OF THE INVENTION In view of the problems of the prior art, an object of the present invention is to be able to cut and excavate the roots of a tree in all directions without damaging them, and to provide a separate fulcrum when pulling out a tree, thereby ensuring stable work. The object of the present invention is to provide a possible tree transplantation device.

[Means for Solving the Problems] That is, the object of the present invention is to provide a frame that is substantially U-shaped in plan with an open front, and a frame that is surrounded by the U-shaped frame from a state that hangs downward substantially vertically. A fork-shaped pawl is pivotally attached to the lower part of at least one side of the frame so as to be rotatable in a nearly horizontal range below the section, a drive mechanism for rotationally driving the pawl, and a bulldozer or A tree transplanting device having a joint part connected to a running body, which includes a cutter which is vertically movable and rotationally driven, provided on both sides and the front of the frame, and a hydraulic jack provided downwardly on both sides of the frame. This is achieved by means of a tree transplanting device, which is characterized by the following:

[Operation] According to the tree transplanting device configured as described above, after scooping out part of the soil from the roots of the tree to be transplanted with the fork-like claws, the cutter is lowered to damage unnecessary roots around the tree. Can be cut without giving. Further, since the device is equipped with a hydraulic jack and its ground contact portion is shaped like a sled plate, when digging into a tree with the claws, it serves as a support for pulling up the device and backs up the lifting moment.

[Embodiments] Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. 1, 2, and 3 are a plan view, a side view, and a front view showing one embodiment of the present invention. In FIGS. 1 to 3, reference numeral 3 denotes a U-shaped frame, and one base end of this U-shaped frame 3 is pivotally connected to a bulldozer 2 (not shown) through a connecting joint 6. As shown in FIGS. The connecting joint portion 6 is constructed from a known general hydraulic jack or the like. The connecting joint portion 6 also serves as a lifting mechanism for the transplant device 1. The opposite base end of the frame 3 connected to the bulldozer 2 is opened to receive the tree to be transplanted, forming a U-shape in plan. Hereinafter, for convenience of explanation, the open side will be referred to as the front side.

A plurality of slightly curved claws 4 are arranged in parallel on both left and right sides of the frame 3, forming a fork for digging and carrying. The claw 4 is pivotally connected to the frame 3 so that it can be opened, closed, and rotated in a range from a substantially vertical position shown by a solid line to a substantially horizontal position shown by a two-dot chain line in FIG. The claws 4 are left and right opposite, and are slightly curved toward the opposite sides. It is provided so that it can be thrust into the ground G when opened vertically, and to support a tree when closed horizontally. meanwhile,
By appropriately bending the claws 4 inward and moving them up and down, the soil surrounding the roots can be excavated, and the amount of excavation can be adjusted by adjusting the bending angle of the claws 4. Reference numeral 5 denotes a drive mechanism for rotationally driving the pawls 4, which is pivotally connected to the frame 3 and is composed of well-known general hydraulic jacks and the like.

8 is the left and right of the frame 3, that is, the claw 4
The cutter provided on the side with , 9 is frame 3
A cutter installed on the front side of the machine, suitable for electric or hydraulically driven rotary saws. 10 and 1
1 is a vertical drive mechanism that drives the cutters 8 and 9 up and down, and 12 is a hydraulic jack whose ground surface is shaped like a sled plate. Although the configuration of the transplantation device of the present invention is as described above, the joint portion 6 is not shown in FIG. 3 because it would be complicated.

Now, assuming that a tree is to be transplanted using the tree transplanting device of the present invention, the transplanting device 1 is connected to the bulldozer 2 by the connecting joint part 6 as described above, the claws 4 are raised and made horizontal to the ground G, It is moved near the tree 7 (not shown) to be transplanted.
At a predetermined distance from the tree 7, the claw 4 of the transplanting device 1
is in a position perpendicular to the ground G, and in this state, the tree 7 is gradually moved toward the front opening of the planar U-shaped frame 3 of the transplanting device 1 so as to embrace it. At this time, move forward while lowering the claws 4 so that the tree 7 comes to the center of the frame 3. At this point, the transplanting device 1 is stopped, and the claws 4 are tilted inward to the opposing sides as necessary, raised and lowered as appropriate, and moved forward and backward and rotated to dig out the soil surrounding the base of the tree and form an arcuate shape. Create a groove.

That is, by adjusting the inclination angle of the claws 4, the width of the soil dug up by the fork changes, and the groove width can be adjusted. Further, after scooping up the soil with the claws 4, the soil is raised, the transplanting device 1 is moved backward as much as necessary, and then it is rotated to make the claws 4 vertical, so that the scooped soil falls. By repeating this operation and rotating, an arcuate groove of appropriate depth and width is formed surrounding the base of the tree. However, the groove does not necessarily have to be arc-shaped, and the soil does not have to be dug out. In short, the roots extending around the tree can be cut by lowering the cutters 8 and 9.

In this state, the cutters 8 on both sides of the frame 3 and the cutter 9 provided in the front are lowered from the upper hold position to an appropriate depth by the vertical drive mechanisms 10 and 11, and the cutters 8 and 9 are driven to rotate. , Cut the roots on all four sides of the tree. The roots are cut using sharp rotary cutters 8 and 9.
It is cut into pieces suitable for transplantation without being torn into pieces. The cutters 8 and 9 can be driven individually or simultaneously. Furthermore, by adding rotation and forward/backward driving of the bulldozer 2, there is less soil falling from the roots, and it is possible to cut so that there are no remaining roots.

After cutting the roots of the tree as described above, the cutters 9 and 10 are raised and returned to the holding position, the claws 4 are held at the roots of the tree, and the tree is driven from a substantially vertical position to a horizontal position to cut the center While cutting nearby roots that have not yet been cut with claws 4, the roots that are still not cut are dug out. The tree itself is then supported by digging up the base into a bulbous shape. At this time, the last remaining root in the center is often a taproot, and is strongly fixed to the ground G. Therefore, the frame, including the bulldozer 2, must be carefully fixed to avoid a lack of lifting moment or lifting of the equipment. With hydraulic jacks 12 attached to both sides of 3,
back up.

Immediately before the process of pulling up a tree, this hydraulic jack 12 is positioned and lowered from the upper hold position to grasp the ground G. The drive mechanism described so far, including the drive of the backup hydraulic jack 12, lifts and lowers the entire transplantation device 2, lifts and lowers the claws 4, opens and closes them, and lifts and lowers the cutters 8 and 9.
The rotation driving operation is performed by being connected to a hydraulic controller (not shown) of the bulldozer 2.

Next, the tree is held in an upright position by the claws 4, the jack 12 is raised to the hold position, and the tree is transported to the desired transplantation location. In addition, the ground contact part is shaped like a long sled plate along the direction of travel, so when transporting trees, the tree can be slid while touching the ground, ensuring stable transport and preventing damage during transport. It is possible to easily transport large trees. A planting hole of a required size is previously dug in the transplanting ground, the claws 4 are lowered, the tree is planted in the hole and the soil is filled, and the transplantation is completed. At the same location, the direction of the tree,
When changing the posture and tidying up the garden, the process is similar except for the transportation process.

Next, another embodiment of the present invention will be described with reference to FIGS. 4 and 5. FIG. 4 is a plan view of the second embodiment, and FIG. 5 is a side view of the second embodiment. In FIGS. 4 and 5, fork-shaped claws 4 are attached to the rear surface of the U-shaped frame 3, and the number of claws 4 is six. Further, the U-shaped frame has multiple stages. In the first embodiment shown in FIGS. 1 to 3, the claws 4 are provided on both sides of the U-shaped frame 3, and the number of claws is seven. The fork-shaped claws 4 may be provided anywhere on the U-shaped frame, and the number of claws 4 is not limited. The point is that the roots of the tree to be transplanted can be excavated and cut without damage, and the tree can be carried while standing.

Further, in the second embodiment, the contact surfaces of the hydraulic jacks 12 provided downward on both sides of the frame 3 are made in the shape of a sled plate. This is because there is only one scooping fork composed of claws 4, so the force to support the device is reinforced, and by driving this hydraulic jack 12, it is possible to back up the tree. In the second embodiment, the operation of the transplanting device 1 when transplanting a tree is the same as in the first embodiment. However, since there is only one fork made up of claws 4, the number of operations of the bulldozer 2 and the transplanting device 1 increases in order to root around the left and right, front and back, and four sides of the tree and cut off unnecessary roots. The effect remains unchanged.

[Effects of the Invention] As can be seen from the above description, according to the present invention,
While the fork-shaped claws dig into the base of the tree to be transplanted, the rotary-driven cutters on the left, right, and front sides of the frame sharply cut off unnecessary roots, leaving the roots with minimal damage. will be cut off. Additionally, by operating the fork-shaped claws and cutter while rotating and moving the bulldozer back and forth as appropriate, it is possible to cut off unnecessary roots in all directions of the tree. In addition, hydraulic jacks are attached to both sides of the frame to serve as a fulcrum when pulling out trees, making it possible to pull out trees stably.
Moreover, it also backs up the pull-out moment. Furthermore, when transporting large trees, the ground contact part of the hydraulic jack can be slid to ensure stable transport.

In short, according to the present invention, unnecessary roots can be cut in all directions without damaging the necessary roots of the tree, and tree transplantation can maintain strong stability even when the tree is pulled out and carried. equipment can be provided.

[Brief explanation of drawings]

1, 2 and 3 are a plan view, a side view and a front view showing one embodiment of the present invention, and FIGS. 4 and 5 are a plan view and a side view showing another embodiment, FIG. 6 is a side view of the overall configuration of a conventional example, and FIG. 7 is a diagram of a tree being dug up using the conventional transplanting device. 1... Transplant device, 2... Bulldozer, 3... U-shaped frame, 4... Fork-shaped claw, 5...
...Claw drive mechanism, 6...Joint part, 7...Tree, 8
...Left and right cutters, 9...Front cutter, 1
0... Drive mechanism of the cutter 8, 11... Drive mechanism of the cutter 9, 12... Hydraulic jack.

Claims (1)

[Claims] 1. A frame having a substantially U-shaped plane with an open front, and a frame that is rotatable in a range from an approximately vertically standing position downward to nearly horizontally downward in a portion surrounded by the U-shaped frame. A tree transplanting device comprising a fork-shaped claw pivotally attached to the lower part of at least one side of the frame, a drive mechanism for rotationally driving the claw, and a joint part for connecting the rear part of the frame to a traveling body such as a bulldozer. A tree transplanting device characterized in that it is equipped with a rotatably driven cutter that is provided on both sides and the front of a frame so as to be movable up and down, and a hydraulic jack that is provided on both sides of the frame and directed downward.