JPH09271273A - Transplanting device for tree - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve operability at the time of a planting work. SOLUTION: This transplanting device 1 for digging and transplanting a tree is provided with a bucket member 6 for scooping in the root part of the tree from a lower part, a frame 5 for freely swingably supporting the bucket member 6, an elevating and lowering arm 3 for elevating and lowering the frame 5 and a connection means 4 for connecting the frame 5 to the elevating and lowering arm 3 freely relatively rotatably around a vertical shaft 26.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a transplanting device for transplanting trees when constructing a golf course, a park, or developing a forest.

[0002]

2. Description of the Related Art Such a transplanting device is disclosed in
Those disclosed in Japanese Patent Publication No. -50368 and Japanese Patent Publication No. 3-18857 are well known, and the former will be briefly described with reference to FIG.

[0003] The illustrated transplantation device is a crawler type traveling device a.
The traveling device a is provided with a pair of left and right lifting arms b which can be raised and lowered by a lifting cylinder c. One end of a connecting member d is rotatably connected to the lifting arm b,
A tilt arm e is rotatably connected to the other end. The tilt arm e is a pair of left and right, and can move in the front-rear direction by the expansion and contraction of the tilt cylinder f.

A digging device g is connected to the tips of the arms b and e. The digging device g includes the arm b,
It has a frame h for rotatably connecting e and a pair of left and right buckets i that perform a turning motion along the width direction of the frame h. The frame h and the bucket i are connected by a link mechanism j and a cylinder k. And digging device g
Is raised and lowered by a lifting cylinder c, and tilted forward and backward by a tilt cylinder f.

As shown in FIG. 7, when digging up a tree 1, first, both sides of a tree root portion m of the tree 1 are excavated by hand digging,
The bucket i is inserted into the groove n thus formed.
Then, both buckets i are swung to the approaching side to move the tree root part m.
The bucket i is made to crawl under, and the whole digging device g is raised in that state to lift the tree l. further,
While the tree 1 is held at a predetermined height, it is moved to another place by the traveling device a and transplanted.

[0006]

By the way, in such a conventional transplanting apparatus, when transplanting a dug up tree to another place, it is inconvenient to change the direction of the tree at the transplanting place. It was

[0007] That is, depending on the environment in which the tree is grown, the parts facing south or north are generally determined. In order to properly grow the tree even after transplanting, transplanting is performed without changing the existing direction. Is desirable.

However, when digging up or planting trees, it is often necessary to work from a specific direction with a relatively large space because of the working environment such as the presence of other trees around. At this time, especially when the direction of the tree changes from the existing direction when planting,
It was troublesome because the process of hoisting the tree on the spot with a crane or the like, rotating it, and dropping it into the transplant site occurred.

[0009]

DISCLOSURE OF THE INVENTION The present invention is a transplanting device for excavating and transplanting a tree, which comprises a bucket member for scooping the root of the tree from below, and a swingable support for the bucket member. A frame, an elevating arm for elevating and lowering the frame, and a connecting means for connecting the frame to the elevating arm so as to be relatively rotatable about the vertical axis.

According to the above construction, since the frame and the bucket member can be rotated about the vertical axis by the connecting means, the direction of the tree can be changed when the tree is planted.

[0011]

Preferred embodiments of the present invention will be described below in detail with reference to the accompanying drawings.

FIG. 1 is a plan view showing an implanting device according to the present invention, and FIG. 2 is a left side view of the same. In these drawings, the crawler type traveling device as the traveling means is omitted, and the illustrated configuration is that of the excavation device.

These figures show the state when the bucket member 6 is closed, and show the state when the bucket member 6 is opened in the front view of FIG. 4 and the plan view of FIG.

As shown in the figure, the transplanting device 1 has a digging device 2, and the digging device 2 has a frame 5 which is moved up and down by an elevating arm 3 as described above. However, here, the frame 5 is not directly attached to the lifting arm 3,
It is adapted to be attached via the intermediate frame 4. Further, the elevating arms 3 are not a pair of left and right, but one having sufficient strength is extended from a traveling device (not shown) so as to be able to elevate.

FIG. 3 shows in detail the periphery of the mounting portions of the intermediate frame 4 and the frame 5. As shown in the figure, the frame 5 integrally bends through the box-shaped portion 8 and is bent to extend forward, a front extending portion 10, a post portion 11 standing upright from the front extending portion 10, and post portions on both sides. It is mainly configured integrally with a connecting portion 12 that bridges 11 in a V shape.

The intermediate frame 4 integrally has a horizontal shaft 25, and the tip end of the elevating arm 3 (FIG. 1) is rotatably attached to the horizontal shaft 25. This makes the intermediate frame 4
Is the horizontal axis 2 along the frame width direction (left-right direction in FIG. 1).
You will be able to rotate about 5.

On the other hand, the frame 5 can rotate relative to the intermediate frame 4 about the vertical axis 26 along the frame height direction (vertical direction in FIG. 2). That is,
As for the vertical axis 26, the flange portion 26a at the lower end is the frame 5
Is integrally fixed to the box-shaped portion 8 and stands upright from the box-shaped portion 8. The vertical axis 26 extends vertically through the intermediate frame 4, and more specifically, is rotatably inserted into a sleeve 27 integrally provided on the intermediate frame 4.

A thrust ball bearing 28 is provided between the sleeve 27 and the flange portion 26a, and a thrust ball bearing 29 is also provided above the sleeve 27. Then, the connecting portion 12 is arranged with the thrust ball bearing 29 interposed therebetween. The connecting portion 12 is integrally fixed to the vertical axis 26 by vertically penetrating the vertical axis 26. Further, a tilt frame 30 is arranged above the connecting portion 12, and a vertical axis 26 is inserted into the tilt frame 30 so as to be relatively rotatable.

As shown in FIG. 1, the tilt frame 3
0 has a pair of connecting portions 31 on both sides in the frame width direction,
The rod 3 of the tilt cylinder 32 is attached to these connecting portions 31.
2a is connected via a pin 33. The tilt cylinder 32 is extended from a traveling device (not shown) as in the conventional case, and the expansion and contraction of the rod 32a causes the tilt cylinder 32 to move.
The entire excavation device 2 including the intermediate frame 4 is rotated about the horizontal axis 25 to perform a forward tilting motion or a backward tilting motion (see FIG. 2).

The upper end of the vertical axis 26 is the tilt frame 30.
A bevel gear 34 is provided on the protruding portion. A pair of left and right gear motors 35 are fixed to the upper surface of the tilt frame 30. Gear motor 3
A bevel gear 36 having a small diameter is also attached to 5, and the bevel gears 34 and 36 are meshed with each other. As shown in FIGS. 2 and 4, the bevel gear 34, the gear motor 35, and the like are covered with a cover 37 shown by an imaginary line.

According to this, the gear motor 35 rotationally drives the vertical axis 26 via the bevel gears 34 and 36 to rotate the frame 5 relative to the intermediate frame 4 and the tilt frame 30 (see FIG. 1).

As described above, the intermediate frame 4 forms a connecting means for connecting the frame 5 to the elevating arm 3 so as to be relatively rotatable about the vertical axis 26.

On the other hand, as shown in FIGS. 1, 2, 4 or 5,
The front extension 10 of the frame 5 is provided with brackets 13 made of parallel plates and spaced apart in the front-back direction of the frame (vertical direction in FIG. 1). One end of long and short link bars 14 and 15 (FIG. 4) forming the link mechanism 7 is rotatably connected to the bracket 13. These link bars 14, 1
The other end of 5 is rotatably connected to the bucket member 6, so that the bucket member 6 is swingably supported by the frame 5 via the link mechanism 7.

A U-shaped bracket 16 is rotatably attached to the upper end of the post portion 11, and a hydraulic cylinder 17 is rotatably attached so as to be sandwiched by the U-shaped bracket 16. Rod 1 of hydraulic cylinder 17
8 is rotatably connected to the bucket member 6, whereby the hydraulic cylinder 17 swings or swivels the bucket member 6 along the frame width direction by the expansion and contraction operation of the rod 18. Then, the pair of left and right bucket members 6 is opened and closed between the closed position shown in FIGS. 1 and 2 and the open position shown in FIGS.

The bucket member 6 includes link bars 14 and 15
Front and rear brackets 19 connected to each other and made of parallel plates
And a central bracket 20 which is connected to the rod 18 of the hydraulic cylinder 17 and is formed of a parallel plate. When the bucket member 6 is in the closed position shown in FIGS. 1 and 2, the bucket members 6 are combined with each other to form a substantially dish shape with the upper side opened. Specifically, each bucket member 6 includes a front surface portion 21a, a rear surface portion 21b, an outer surface portion 21c, and a bottom surface portion 21.
As shown in FIG. 1, a claw 23 having a pointed or triangular shape that engages with each other is formed on the inner edge of the bottom surface portion 21d. And this claw 23 is the bucket member 6
When scooping the roots from below, the roots are cut off and the soil is dug to facilitate the scooping.

In particular, since the link bars 14 and 15 are made into a pair of long and short, when the hydraulic cylinder 17 is extended, for example, the swinging motion of the bucket member 6 is not merely a circular motion, but is moved horizontally from above to below. It is an elliptic movement like this.

Next, the operation of this mode will be described.

First, when digging a tree, the elevating arm 3 is operated by an elevating cylinder (not shown) to set the bucket member 6 at a position higher than the ground, and the hydraulic cylinder 1
7 is contracted to open the bucket members 6 to each other as shown in FIGS. 4 and 5 so that the trunk of the tree (not shown) is located between the bucket members 6.

Next, the elevating arm 3 is lowered, the bucket member 6 is inserted into the grooves (see FIG. 7) formed on both sides of the root of the tree, and the hydraulic cylinder 17 is extended to close the bucket member 6. Turn to. Then, the claws 23 of the bucket member 6 cut roots of the roots and excavate the soil,
At the same time, the bucket member 6 scoops the tree root from below.

When the bucket members 6 are eventually closed as shown in FIGS. 1 and 2, both bucket members 6 cover the tree roots and accommodate them. In this state, the bucket member 6 is lifted and the bucket member 6 is held at a predetermined height above the ground,
It is transported to the transplant site by a traveling device (not shown).

Next, as for the planting of trees, in this case, a hole for accommodating the tree root portion is previously excavated at the transplanting site.
Then, the bucket member 6 is lowered on the hole, and by opening the bucket member 6, the root portion is lowered into the hole, and the implantation is completed.

However, at this time, as described above, even if an attempt is made to plant from a relatively wide area where the surrounding trees and the like do not interfere, the direction of the trees is not the same as the direction when the trees are dug out in the state of being transported. It may be different. In particular, the transplantation device 1 has the excavation device 2 and the traveling device arranged in the front and rear, and the total length thereof is relatively long,
It is often impossible to change the direction of the entire tree to match the direction of trees in an empty space.

Therefore, in such a configuration, the frame 5 can be rotated about the vertical axis 26, and the bucket member 6 can be rotated while the tree is housed so that the direction of the tree can be changed on the spot. There is. As a result, it is not necessary to separately perform a lifting operation using a crane or the like, which is conventionally performed, and the direction of trees can be easily changed even in a relatively narrow place, and the workability can be greatly improved.

Further, as shown in FIG. 1, in such a configuration, a relatively large turning angle θ ₁ of 90 ° to the left and right with respect to the longitudinal direction of the elevating arm 3 is realized. As a result, the direction of trees can be changed significantly, and workability can be improved.

Further, as shown in FIG. 2, in this embodiment, the intermediate frame 4 is extended forward from the horizontal shaft 25 and the mounting portion of the frame 5 is offset forward,
A relatively large angle θ around the horizontal axis 25 from the horizontal position shown by the solid line in the figure to the rear position shown by the phantom line in the figure.
It is designed so that it can rotate by ₂ = 90 °. This allows
When the work is stopped, the frame 5, the bucket member 6 and the like can be stored rearward, the standby space when the work is stopped can be reduced, and the tilting of a relatively large angle is possible, so that the workability is further improved. You can also

In addition, this embodiment is also characterized in that the rotation angle of the frame 5 can be remotely controlled by the gear motor 35. The gear motor 35 is an electric type, has a speed reducer inside, and rotates the frame 5 at a relatively low speed. Since two gear motors 35 are used, it is possible to obtain a strong torque sufficient to rotate the frame 5 on which the tree is placed. As described above, the gear motor 35 constitutes a driving means for rotationally driving the frame 5, but as the driving means, a hydraulic motor, a cylinder device or the like may be used.

In the above description, the point that the frame 5 is rotated when the tree is planted is described, but it is also possible to rotate the frame 5 during excavation work to change the direction of the bucket member 6 and perform the operation from the optimum direction. It is possible, and it is possible to change the direction of trees by rotating it during transportation.

Further, in this embodiment, the vertical axis 26 is fixed to the frame 5 and the vertical axis 26 is rotationally driven by the gear motor 35. On the contrary, the vertical axis 26 is fixed to the intermediate frame 4.
Alternatively, the gear motor 35 may be fixed to the frame 5 and the frame motor 5 may be rotated. Alternatively, the vertical axis 26 may be free with respect to both frames 4 and 5, and a driving force for relative rotation may be applied between the frames 4 and 5. In addition, ring-shaped grooves or protrusions are provided on both frames 4 and 5,
By engaging these with each other, it is possible to allow relative rotation around the virtual vertical axis.

The bucket member 6 may be divided into, for example, only one or a larger number, instead of being divided into the left and right as described above. The shape and structure of the bucket can be changed as appropriate, and the optimum one can be selected according to the condition of the root portion of the tree.

As described above, the present invention can take various forms other than the above-mentioned forms.

[0041]

The present invention exhibits the following excellent effects.

(1) At the time of planting work, the direction of trees can be easily changed in a relatively narrow place, and workability can be greatly improved.

(2) Even when excavating, the work can be performed from the optimum direction and the workability can be improved.

[Brief description of drawings]

FIG. 1 is a plan view of an implanting device according to the present invention.

FIG. 2 is a left side view of FIG.

FIG. 3 is an enlarged perspective view of a main part of the transplantation device according to the present invention.

FIG. 4 is a front view of the transplantation device according to the present invention, showing a state when the bucket member is opened.

FIG. 5 is a plan view of FIG.

FIG. 6 is a side view showing a conventional implanting device.

FIG. 7 is a front view showing a conventional transplantation device.

[Explanation of symbols]

 1 Transplanting device 3 Lifting arm 4 Intermediate frame (connecting means) 5 Frame 6 Bucket member 26 Vertical axis

Claims (1)

[Claims] 1. A transplanting device for excavating and transplanting a tree, comprising: a bucket member for scooping the root of the tree from below; a frame for swingably supporting the bucket member; and an elevating and lowering frame. A lifting arm for
A tree transplanting device comprising: a connecting means for connecting the frame to the elevating arm so as to be rotatable relative to the vertical axis.