JP2912868B2 - Tree transplanting equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

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

[0002]

2. Description of the Related Art Such a transplanting device is disclosed in
Japanese Unexamined 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 operation 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 arms b,
e and a pair of left and right buckets i that pivotally move 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 equipment 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 a tree l, first, both sides of a tree root m of the tree l are dug by hand digging or the like.
The bucket i is inserted into the groove n thus formed.
Then, both buckets i are turned to the approach side, and the root m
, And the entire digging device g is raised to lift the tree l. further,
While maintaining the tree l at a predetermined height, the tree is moved to another place by the traveling device a and transplanted.

[0006]

However, in such a conventional transplanting apparatus, it is inconvenient to change the direction of the tree at the transplanting location when transplanting the excavated tree to another location. Was.

[0007] That is, a tree is generally determined to be oriented southward or northward depending on the environment in which it is grown. In order to grow the tree well after transplantation, transplant the tree without changing the existing orientation. It is desirable.

However, when digging and planting trees, it is often necessary to work from a specific direction with a relatively large space due to the work environment such as the presence of other trees around the trees. At this time, especially when the direction of the tree changes from the existing direction at the time of implantation,
At that time, the tree was once lifted by a crane or the like, rotated, and then dropped into the transplanting site, which was troublesome.

[0009]

SUMMARY OF THE INVENTION The present invention relates to a transplanting device for digging and transplanting a tree, comprising a bucket member for scooping the root of the tree from below, and a swingably supporting bucket member. a frame for, from the frame
The vertical axis that stands together and the lower part of this vertical axis
It is rotatably mounted and rotates around the horizontal axis on the lifting arm
Intermediate frame that can be mounted, and above the vertical axis
Tilt frame that can be freely rotated around it
And the vertical axis projected on the tilt frame
Bevel gear provided at the upper end and the tilt frame
Is fixed to the upper surface of the
A pair of gears each having a bevel gear meshed with the bevel gear
And a motor .

According to the above configuration, since the frame and the bucket member can rotate around the vertical axis, 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 figures, the crawler-type traveling device as the traveling means described above is omitted, and the configuration shown is that of the above-described digging 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 can be raised and lowered by a lifting arm 3 as described above. However, the frame 5 is not directly attached to the lifting arm 3 here,
It can be attached via the intermediate frame 4. The lifting arm 3 is not a pair of right and left, but one having sufficient strength is extended from a traveling device (not shown) so as to be able to move up and down.

FIG. 3 shows the vicinity of the mounting portion of the intermediate frame 4 and the frame 5 in detail. As shown in the figure, the frame 5 is bent integrally through the box-shaped portion 8 and extends forward, a front extension portion 10 extending forward, a post portion 11 rising from the front extension portion 10, and post portions on both sides. 11 is mainly integrally formed with a connecting portion 12 that bridges the V-shaped portion 11 in a V-shape.

The intermediate frame 4 integrally has a horizontal shaft 25, and the tip of the lifting arm 3 (FIG. 1) is rotatably attached to the horizontal shaft 25. Thereby, the intermediate frame 4
Is the horizontal axis 2 along the frame width direction (left-right direction in FIG. 1)
It is possible to rotate around 5 turns.

On the other hand, the frame 5 can rotate relative to the intermediate frame 4 around a vertical axis 26 along the frame height direction (vertical direction in FIG. 2). That is,
The vertical axis 26 indicates that the flange portion 26a at the lower end
Are integrally fixed to the box-shaped portion 8 and stand up from the box-shaped portion 8. The vertical axis 26 vertically penetrates the intermediate frame 4, and more specifically, is rotatably inserted into a sleeve 27 provided integrally with 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 similarly provided on the upper portion of the sleeve 27. The connecting portion 12 is arranged so as to sandwich the thrust ball bearing 29 therebetween. The connecting portion 12 is integrally fixed to the longitudinal axis 26 by vertically penetrating the longitudinal axis 26. Further, a tilt frame 30 is disposed above the connecting portion 12, and a vertical axis 26 is inserted through 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
2a is connected via a pin 33. The tilt cylinder 32 is extended from a traveling device (not shown) in the same manner as in the related art.
The entire digging device 2 including the intermediate frame 4 is rotated around the horizontal axis 25 to perform a forward or backward tilting operation (see FIG. 2).

The upper end of the vertical axis 26 is the tilt frame 30
And a bevel gear 34 is provided at the protruding portion. A pair of left and right gear motors 35 is fixed to the upper surface of the tilt frame 30. Gear motor 3
5 is also provided with a small-diameter bevel gear 36, and the bevel gears 34, 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 indicated by a virtual line.

According to this, the gear motor 35 rotationally drives the longitudinal axis 26 via bevel gears 34 and 36, and rotates 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 lifting arm 3 so as to be relatively rotatable about the longitudinal axis 26.

On the other hand, as shown in FIG.
A bracket 13 made of a parallel plate is provided on the front extension portion 10 of the frame 5 so as to be spaced apart in the frame front-rear direction (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 these brackets 13. These link bars 14, 1
The other end of 5 is rotatably connected to bucket member 6, so that bucket member 6 is swingably supported by frame 5 via link mechanism 7.

A U-shaped bracket 16 is rotatably mounted on the upper end of the post portion 11, and a hydraulic cylinder 17 is rotatably mounted 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 turns 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 are opened and closed between a closed position shown in FIGS. 1 and 2 and an open position shown in FIGS.

The bucket member 6 includes link bars 14 and 15
And front and rear brackets 19 made of parallel plates
And a central bracket 20 connected to the rod 18 of the hydraulic cylinder 17 and made of a parallel plate. When the bucket member 6 is at the closed position shown in FIGS. 1 and 2, the bucket members 6 are combined with each other to form a substantially dish-like shape whose upper part is opened. More specifically, each bucket member 6 includes a front part 21a, a rear part 21b, an outer part 21c, and a bottom part 21c.
1, a pointed or triangular claw 23 that engages with each other is formed on the inner edge of the bottom surface 21d as shown in FIG. The pawl 23 is connected to the bucket member 6.
When scooping a tree root from below, the tree root is cut off and soil is excavated to facilitate the scooping.

In particular, since the link bars 14 and 15 are paired long and short, when the hydraulic cylinder 17 is extended, for example, the pivoting operation of the bucket member 6 is not a simple circular motion, but moves from above to below and then horizontally. Such an elliptical motion.

Next, the operation of this embodiment will be described.

First, when excavating a tree, the lifting arm 3 is operated by a lifting cylinder (not shown) to set the bucket member 6 at a position higher than the ground.
7 are retracted to open the bucket members 6 together as shown in FIGS. 4 and 5 so that the trunk of a tree (not shown) is positioned between the bucket members 6.

Next, the lifting arm 3 is lowered, and the bucket member 6 is inserted into grooves (see FIG. 7) formed on both sides of the tree root, and the hydraulic cylinder 17 is extended to close the bucket member 6 in the closing direction. Turn. Then, the claw 23 of the bucket member 6 cuts the root of the tree and excavates the soil,
At the same time, the bucket member 6 scoops the tree root from below.

When the bucket member 6 is closed as shown in FIGS. 1 and 2, both bucket members 6 cover and cover the tree roots. In this state, the bucket member 6 is raised, and while maintaining the bucket member 6 at a predetermined height from the ground,
It is transported to a transplant site by a traveling device (not shown).

Next, tree implantation is performed. In this case, a hole for accommodating a tree root portion is excavated in advance at a transplanting site.
Then, the bucket member 6 is lowered on the hole, and the tree root portion is lowered into the hole by opening the bucket member 6, and the implantation is completed.

However, at this time, as described above, even if an attempt is made to perform the planting work from a relatively wide place where the surrounding trees and the like do not interfere, the direction of the trees is the same as the direction of the excavation in the state of being transported. May be different. In particular, in the transplantation device 1, the digging device 2 and the traveling device are arranged back and forth, and the total length thereof is relatively long.
Often, it is not possible to change the overall orientation of a tree in a vacant space.

Therefore, in this embodiment, the direction of the trees can be changed on the spot by allowing the frame 5 to rotate about the longitudinal axis 26 and rotating the bucket member 6 while holding the trees. I have. This eliminates the necessity of separately performing a lifting operation using a crane or the like, and can easily change the direction of a tree even in a relatively narrow place, thereby greatly improving workability.

Further, as shown in FIG. 1, in this embodiment, a relatively large rotation angle θ ₁ of 90 ° left and right with respect to the longitudinal direction of the lifting arm 3 is realized. As a result, the direction of the trees can be greatly changed, and workability can be improved.

Further, as shown in FIG. 2, in this embodiment, the intermediate frame 4 is extended forward from the horizontal axis 25, and the mounting portion of the frame 5 is offset forward.
A relatively large angle θ about the horizontal axis 25 from the horizontal position shown by the solid line in the figure to the rear position shown by the virtual line in the figure.
₂ = It can be rotated by 90 °. This allows
When the work is stopped, the frame 5 and the bucket member 6 can be stored rearward, and the waiting space at the time of the work stop can be reduced, and the tilting at a relatively large angle is possible. Can also.

In addition, one of the features of this embodiment is that the rotation angle of the frame 5 can be remotely controlled by the gear motor 35. The gear motor 35 is of an electric type, has a speed reducer therein, and rotates the frame 5 at a relatively low speed. Since two gear motors 35 are used, a large torque sufficient to rotate the frame 5 on which trees are mounted can be obtained. As described above, the gear motor 35 constitutes a driving unit for driving the frame 5 to rotate. As the driving unit, a hydraulic motor, a cylinder device, or the like can be used.

In the above description, the frame 5 is rotated at the time of planting the tree. However, it is also possible to change the direction of the bucket member 6 by performing the rotation at the time of digging work to perform the work from the optimum direction. Yes, and it is also possible to change the direction of the tree by rotating during transport.

In this embodiment, the vertical axis 26 is fixed to the frame 5 and the vertical axis 26 is driven to rotate by the gear motor 35.
, And the gear motor 35 may be fixed to the frame 5 so as to rotate. Alternatively, the vertical axis 26 may be free for both frames 4 and 5, and a driving force for relative rotation may be applied between both frames 4 and 5. Also, a ring-shaped groove or projection is provided on both frames 4 and 5,
By engaging these with each other, it is also possible to enable relative rotation about a virtual longitudinal axis.

The bucket member 6 is not divided into two parts as described above, but may be divided into a single part or more parts. The shape, structure, and the like of the bucket can also be appropriately changed, and an optimum one can be selected according to the state of the root of the tree.

As described above, the present invention can take various forms other than the above-described 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) The work can be performed from an optimum direction even in the excavation work, and the workability can be improved.

[Brief description of the 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 where a bucket member is opened.

FIG. 5 is a plan view of FIG. 4;

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

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

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Implantation apparatus 3 Elevating arm 4 Intermediate frame (connection means) 5 Frame 6 Bucket member 26 Vertical axis

Claims (1)

(57) [Claims] 1. A transplantation apparatus for implanting in dug up trees, integral root portion of the trees and the bucket member to put the scoop from below, and a frame for supporting the bucket member pivotally from the frame A vertical axis and the vertical
It is rotatably mounted around the lower part of the shaft,
Intermediate frame that can be pivoted around the horizontal axis
And the upper part of the above vertical axis is rotatably mounted around it
Tilt frame that is to be
A bevel gear provided at the upper end of the vertical axis
The upper surface of the tilt frame and the positions on the left and right of the vertical axis.
And bevel gear meshed with the bevel gear
A tree transplanting device comprising a pair of gear motors respectively provided.