JPH0740836B2 - Vehicle for digging and transferring trees - Google Patents

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION The present invention relates to a vehicle for excavating and transporting trees.

[0002]

2. Description of the Related Art Conventionally, for example, when a forest is constructed on a golf course, a residential land, etc., trees have been transplanted to a necessary place. As the "tree transplanting method and apparatus", Japanese Patent Publication No. 57-55371. There is one disclosed in Japanese Patent Laid-Open Publication No. JP-A-2003-134, of which a tree transplanting device is shown in FIG. 5, FIG. 6 and FIG.
As shown in FIGS. 1, 4, and 5 of JP-B-57-55371, respectively, a frame 2 having a substantially U-shape with a front end opened so as to receive a tree 1, and a frame Excavation and conveyance of trees from a fork 3 pivotally attached to the lower portions on both left and right sides of 2 in a range from a substantially vertical opening position to a substantially horizontal closed position and a drive mechanism 4 for rotating the fork 3. The machine 5 is connected to the end of the self-propelled machine 6 such as a bulldozer so that the excavation and carrier machine 5 can be driven up and down and the opening / closing operation of the fork 3 can be controlled on the self-propelled machine 6. It is a thing.

However, in the "Tree transplantation method and apparatus" disclosed in Japanese Patent Publication No. 57-55371, a tree 1 dug when a pair of forks 3 is horizontally opposed and closed is used as a frame 2. There is a problem that it is tilted forward from the opening at the front end of the blade and is not stable during transportation. Therefore, in order to solve the problem, the method for digging and transferring trees of Japanese Patent Application Laid-Open No. Hei 2-163011, filed by the applicant of the present invention, And a vehicle for digging and transferring trees, of which the “vehicle for digging and transferring trees” is shown in FIGS.
As shown in (the same as FIG. 1 to FIG. 3 of Japanese Patent Application Laid-Open No. Hei 2-163011), the tree digging device 12 is
A substantially U-shaped frame 15 having a front end opened to receive the root of a tree, and a hydraulic cylinder 19 that is pivotally supported on the lower left and right sides of the frame 15 to close a substantially vertical downward opening and a substantially horizontal inward closing. A pair of left and right forks 16 that can be opened and closed within a range of positions, and when the forks 16 are pivotally supported on the left and right sides of the frame 15 and interlock with the pair of forks 16, the forks 16 are in the open position. A pair of left and right bars 20 connected to the respective forks 16 via links 22 so as to come to the substantially vertical upward opening position and to come to the substantially horizontal inward closing position when the respective forks 16 are in the closed position.
The tree digging device is attached to a front part of a self-propelled vehicle 11 such as a bulldozer so as to be able to move up and down, and the fork 16 of the tree digging device and a bar 20 which is interlocked with the fork 16 are opened and closed. The digging and prevention of the tilting of the tree and the transfer of the tree carried on the fork 16 of the tree digging device can be operated on the self-propelled vehicle. Also, Japanese Patent Laid-Open No. 2-16301
There is also one shown in FIGS. 11 to 13 as an improvement of the vehicle for excavating and transporting trees of Japanese Patent No. The tree digging and transferring vehicle is largely similar to that shown in FIGS. 8-10, but in its improved version, FIG.
As shown in FIG. 13, a pair of left and right bars 25 can be opened and closed by hydraulic cylinders 26 in place of the pair of left and right bars 20 of the prior art shown in FIG.
Further, instead of the conventional fork 16 of FIG. 10, a bucket 27 having a strong structure is provided.

[0004]

However, Japanese Unexamined Patent Application Publication No.
The "Vehicle excavation transfer vehicle" and its improved type disclosed in Japanese Patent No. 163011 have a problem that the earth and sand of the excavated root of the tree collapse during transportation.

[0005]

In order to solve the above-mentioned problems, the present invention further improves the "tree digging and transferring vehicle" and its improved type disclosed in Japanese Unexamined Patent Publication No. Hei 2-163011. An object of the present invention is to provide a tree digging and transferring vehicle in which sediment at a root portion is prevented from collapsing at the time of transportation, and a tree digging and transferring vehicle according to the present invention is a tree digging device. And a substantially U-shaped frame whose front end is open to receive the parts, and each of which is pivotally supported on the lower left and right sides of the frame, and can be opened and closed by a hydraulic cylinder between a downward opening position and an inward closing position. And a pair of left and right buckets, each of which is pivotally supported on the left and right sides of the frame, and can be opened and closed within a range of a substantially vertical upward opening position and a substantially horizontal inward closing position by a hydraulic cylinder. A pair of left and right bars, and a pair of left and right earth and sand which are pivotally supported on the left and right sides of the frame and can be vertically moved by a hydraulic cylinder in a range between a substantially vertical upper position and a substantially diagonal lower position. A pressing plate, the tree digging device is attached to a front part of a self-propelled vehicle such as a bulldozer so as to be able to move up and down, and the bucket digging device of the tree digging device and the opening and closing operation of the bar and the earth and sand. On the self-propelled vehicle, the digging of trees by the vertical movement of the holding plate, the prevention of tilting of the trees, the prevention of the collapse of the soil at the root, and the transportation of the trees carried on the bucket of the digging device for the trees are performed. It can be operated with.

[0006]

Next, the operation of the present invention will be described. A vehicle for digging and transferring trees according to the present invention is disclosed in Japanese Patent Laid-Open No. Hei 2-1630.
No. 11 gazette "Vehicle excavation transfer vehicle" and its improved type are provided with a sand retaining plate for vertically controlling the soil at the root of the tree so that the tree excavating device can be moved up and down. By the opening / closing operation of the bucket and the bar and the vertical movement of the earth and sand holding plate, it is possible to dig trees, prevent the trees from leaning, and prevent the collapse of the earth and sand at the root part.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a tree excavation and transfer vehicle according to the present invention will be described below with reference to FIGS.
The vehicle for excavating trees is a self-propelled vehicle such as a bulldozer 3
A tree digging device 32 is attached to the front part of 1 through a link mechanism 33 and hydraulic cylinders 34a and 34b.

The tree digging device 32 includes a frame 35,
It includes a pair of buckets 36 and a pair of bars 37.
The frame 35 is substantially U-shaped with its front end opened so as to receive the root of the dug tree. The bases of the pair of buckets 36 are pivotally supported at the lower left and right sides of the frame 35, and the tip ends of the respective buckets 36 are supported by brackets 38 whose cylinder ends are fixed to the upper left and right sides of the frame 35. A pair of hydraulic cylinders 40 attached to a bracket 39 whose rod end is fixed to the middle portion of the bucket 36 can open and close a range between a substantially vertical opening position and a substantially horizontal closing position. Also a pair of bars 37
Has a base portion pivotally supported on both left and right sides of the frame 35, and a tip portion thereof is rotatable in a range of a substantially horizontal inward closed position and a substantially vertical upward opened position, and is extended from the base end portion. The arm 41 and the frame 35 are connected to each other by a hydraulic cylinder 42 so that the range between the closed position and the open position can be opened and closed.

Next, a means for preventing landslide, which is newly provided by the present invention in order to prevent landslide of the root portion of the dug tree, will be described with reference to FIGS. 3 and 4. The pair of left and right earth and sand holding plates 43 have their bases pivotally supported on the lower ends of both sides of the frame 35, and can be vertically moved by a hydraulic cylinder 44 between a substantially vertical upper position and a substantially diagonal lower position.

The tree digging device 32 is a self-propelled vehicle 31.
It is attached to the front part of the tree.
2, the opening and closing operations of the bucket 36 and the bar 37 prevent digging and tilting of the tree, and the up and down movement of the earth and sand holding plate 43 prevents landslides at the root, and the bucket 36 of the digging device 32 on the tree. The transfer of the tree carried by the vehicle can be operated by an operation device (not shown) provided in the self-propelled vehicle 31.

Next, the operation of excavating and transferring trees by this apparatus will be described. Self-propelled vehicles such as bulldozers 31
By operating on the self-propelled vehicle 31 the tree digging device 32 mounted on the front part of the tree so as to be able to move up and down, the pair of bars 37 pivotally supported on the left and right sides of the frame 35 of the tree digging device 32 are installed. The pair of buckets 36 pivotally supported on the lower left and right sides of the frame 35 of the tree digging device 32 are lowered in a substantially vertical downward opening state while being set in a substantially vertical upward state, and the plucking state is set to the pair. Bucket 3
The left and right ground of the root of the tree is cut by 6 and then the pair of bars 37 are closed substantially horizontally inward to prevent the tree from tilting and the tree is dug by the tree digging device 32. The procedure is carried out in such a manner that the pair of earth and sand holding plates 43 are inclined downward so that the top surface of the root portion is pressed against the earth and sand so that the earth and sand of the root portion does not collapse at that stage, and this tree is transferred to the planting hole.

[0012]

Since the vehicle for digging and transferring trees according to the present invention is constructed as described above, when the trees are digged and transferred, the trees do not tilt forward and the soil at the root part collapses. It is possible to work in a stable state without doing.

[Brief description of drawings]

1 is an overall side view of an embodiment of a tree excavation and transfer vehicle according to the present invention.

FIG. 2 is a plan view of FIG.

FIG. 3 is a Z-view front view showing a state in which the bucket of the tree digging device of the tree digging and transferring vehicle of FIG. 1 is closed and the bar is opened.

4 is a cross-sectional front view taken along the line AA in which the bucket of the tree digging device of the tree digging and transferring vehicle of FIG. 1 is closed and the earth and sand holding plate is at the upper position.

FIG. 5 is an overall side view of a conventional tree transplanting device.

FIG. 6 is a front view showing a main part of a tree excavating and transporting machine of the tree transplanting apparatus of FIG. 5;

7 is a perspective view showing a relationship among a frame, a bucket, and a moving mechanism of the tree transplanting device of FIG.

FIG. 8 is an overall side view of a conventional tree transfer device.

9 is a plan view of FIG. 8. FIG.

10 is a front view showing a main part of a tree excavation device of the tree transfer device of FIG. 8. FIG.

FIG. 11 is an overall side view of a conventional tree transfer device.

FIG. 12 is a plan view of FIG. 11.

13 is a front view showing a main part of a tree excavation device of the tree transfer device of FIG. 11. FIG.

[Explanation of symbols]

 1 tree 2 frame 3 fork 4 drive mechanism 5 excavator and carrier 6 self-propelled machine 11 self-propelled vehicle 12 tree excavator 13 link mechanism 14 hydraulic cylinder 15 frame 16 fork 17 bracket 18 bracket 19 hydraulic cylinder 20 bar 22 link 25 bar 26 hydraulic cylinder 27 bucket 31 self-propelled vehicle 32 tree digging device 33 link mechanism 34a hydraulic cylinder 34b hydraulic cylinder 35 frame 36 bucket 37 bar 38 bracket 39 bracket 40 hydraulic cylinder 41 arm 42 hydraulic cylinder 43 earth and sand control Plate 44 Hydraulic cylinder

Claims (1)

[Claims] 1. A tree digging device comprises a substantially U-shaped frame whose front end is open so as to receive the root of the tree, and a frame which is pivotally supported at the lower left and right sides of the frame and which faces downwards by hydraulic cylinders. A pair of left and right buckets that can be opened and closed within a range between the opening position and the inward closing position, and a substantially vertical upward opening position and a substantially horizontal inward direction by hydraulic cylinders that are pivotally supported on both left and right sides of the frame. A pair of left and right bars that can be opened and closed within the range of the closed position, and a range of a substantially vertical upper position and a substantially diagonal lower position by hydraulic cylinders that are pivotally supported on both left and right sides of the frame. It is composed of a pair of left and right earth and sand holding plates that can move up and down, and the tree digging device is attached to the front part of a self-propelled vehicle such as a bulldozer so as to be able to move up and down. Opening and closing operations of the bucket and the bar of the tree digging device and digging trees by the up and down movement of the earth and sand holding plate, preventing tilting of trees and preventing collapse of soil at the root, and the tree digging device described above. A tree excavation and transfer vehicle, wherein transfer of a tree carried on a bucket is operable on the self-propelled vehicle.