JPH0376514A - Tree-transplanting device - Google Patents

Abstract

PURPOSE:To enable to shake a tree, promote the cutting of the root thereof an readily perform a work for digging up the tree by operating a grasping device for grasping and fixing the tree in a state interlocking with a digging device when the root is cut with the digging device. CONSTITUTION:A digging device comprising a bucket 4 for digging out the root portion of a tree and other components is pivotally attached to the tip of an attachment-holding mechanism 2 and 3 raisably disposed on a mobile vehicle 1. A grasping device 5 laterally openable to grasp the tree is disposed on the digging device. since the grasping device for grasping and fixing the tree is operated in a state interlocking with the digging device when the digging device cuts the root portion, the tree can be shaken to promote the cutting operation of the tree and readily achieve the digging work.

Description

[Detailed description of the invention] [Industrial application field]

The present invention relates to a tree transplanting device that performs everything from digging up a tree to planting it using a bucket or other digging device that scoops out the root portion of the tree.

[Conventional technology]

When creating a mountain forest or doing landscaping, when transplanting trees such as twigs to a predetermined location, transplanting devices with various structures are used to carry out the process from digging up the trees to planting them. ing. In these transplants, the ground is excavated while the root part of the tree is cut and separated, and the tree is held and transported using a digging device.

[Problems to be solved by the invention]

The above-mentioned digging device excavates to the cutting width position of the root of the tree, and then pulls the whole ground upwards, which has the drawback of high digging resistance and a complicated or large structure. This invention was created in view of the above circumstances, and
The main issue is that when cutting the roots with a digging device, the gripping device that grips and fixes the tree is displaced in conjunction with the digging device, so the tree can be swung, facilitating root cutting. The objective is to facilitate the execution of excavation work. Another object of the present invention is to hold the tree by using a lifting device that holds the root part and a gripping means arranged on the arm of the attachment holding device above the lifting device when digging or transporting the tree. The purpose is to facilitate the transportation of trees.

[Means to solve the problem]

In order to achieve the above object, the invention of claim 1 provides (a)
(b) A bucket or other digging device for digging up the roots of a tree is pivotally attached to the tip of an attachment holding mechanism provided in a self-propelled vehicle so that it can be raised and lowered; (b). A technical measure has been taken to install a gripping device to grip the tree. In the invention of claim 2, (a) a bucket or other digging device for scooping out the root part of a tree is pivotally attached to the tip of an attachment holding mechanism provided on the self-propelled vehicle so as to be able to rise and fall freely; (b) A technical measure is taken in which a gripping device is provided on the arm of the attachment holding mechanism above the lifting device to grip the tree by opening and closing from side to side. Furthermore, in the invention of claim 3, (&), a bucket or other lifting art for digging up the root part of a tree is pivotally attached to the tip of the attachment holding mechanism provided in the self-propelled vehicle so as to be able to rise and fall freely; (b) ), the digging device is provided with a first gripping device that opens and closes left and right above the digging device to grip the vicinity of the root of the tree; (C), the arms of the attachment holding mechanism above the first gripping device are provided with left and right gripping devices; The technical measure is to provide a second gripping device that opens and closes to grip the vicinity of the trunk of the tree.

[Effect]

In the first aspect of the invention, the root portion of the tree is excavated by the lifting device, and at the same time, the upper position of the root portion of the tree is restrained by the gripping device. Since the gripping device is located above the layering device and interlocks with the layering device, it is possible to restrain the gripped tree during digging and easily cut the roots. In the invention as claimed in claim 2, since the trunk of the tree held on the digging device is gripped by the gripping means provided on the arm, the tree leans along the digging device or the arm, and the root and trunk are separated. Since it is retained, it can be easily transported after digging. In the invention according to claim 3, the gripping device according to claim 1 is used as the first gripping device, and the gripping device according to claim 2 is used as the second gripping device and they are combined. is the 11th! The holding device can also grip the vicinity of the root portion. Furthermore, if an ejector bucket is used as the digging device as shown in the fourth aspect of the invention, the tree on the bucket can be pushed out at the transplant site.

【Example】

Hereinafter, preferred embodiments in which the transplanting device of the present invention is applied to a hydraulic excavator will be described with reference to the drawings. As shown in FIG. 1, the hydraulic excavator l has a boom 2 that is held and driven by a first hydraulic cylinder C1 as an attachment holding mechanism, and a boom 2 that is pivotally attached to the tip of the boom 2 and can be freely pivoted by a second hydraulic cylinder C2. It has an arm 3. A bucket 4, which is an example of a digging device, is pivotally attached to the tip of the arm 3, and can be tilted by a third hydraulic cylinder C3. Here, the bucket 4 consists of an eject bucket, and an ejector IF4' arranged behind the bucket 4
It has a known configuration in which the bucket is displaced forward (M shift or sliding) to push the load on the bucket forward. A first gripping device 15 is provided above the bucket 4 to grip the tree W by opening and closing from side to side. In this embodiment, as shown in FIGS. 2 and 3, the first gripping device 5 includes a pair of brackets 6 rising from both sides of the back surface of the bucket 4, and is pivotally connected to the brackets 6 and rotates left and right to open and close. It consists of a gripping arm 7 and a gripping claw 8 projecting forward from the tip of the gripping arm 7. That is, each bracket 6 protrudes upward from the upper end of the bucket 4, and is attached to the base of the gripping arm 7 by a pivot 9 such that the gripping arm 7 projects forward. A pair of gripping arms 7 provided on each bracket 6
are set to be rotated around the pivot shaft 9 in conjunction with or in synchronization with each other in the direction of approaching or moving away from each other via the rum drive mechanism 5A. In this embodiment, the opening/closing drive mechanism 5A is composed of a hydraulic cylinder having a pair of rods whose both ends expand or shorten in synchronization, and the tips of the rods are pivotally attached to each gripping arm member 7. The drive mechanism 5A is basically a pair of gripping arms f.
Any suitable means may be used as long as it rotates the s (or the first gripping device) in the direction of enlarging or approaching left and right, and any appropriate means such as a link mechanism, a hydraulic cylinder, or a combination of a motor and a gear train can be used. A gripping claw portion 8 is attached to the front of the gripping arm portion 7, and the gripping claw portion 8 is extended in the direction of extension to a desired position by a telescopic drive device 5B such as a hydraulic cylinder that is built in the gripping arm portion 7 and is extendable and retractable. It is now possible to expand to . In this embodiment, the opening/closing drive device 5A is also the telescopic drive device 5B.
Both are connected to the hydraulic system for the work equipment and can be operated from the driver's seat. Then, the opening/closing drive mechanism 5A rotates the pair of gripping arms 70 in a direction to widen the gap, or rotates in a direction to narrow the gap, thereby opening and closing the gripping arms 7, thereby restraining and gripping the tree. In addition, by expanding and contracting the gripping claw portion 8 according to the width of the tree, it is possible to restrain it according to the width of the tree. ! can do. Next, as shown in FIG. 4, a second gripping device ll1o is attached to the arm 3 that holds the bucket 4 so as to open and close in the direction of the frontage of the bucket. This second gripping device 10 is composed of a fork device in this embodiment, and this fork device includes a fork piece 11 having two claws on one side and a fork piece 11 having three claws on the other side. A pair of brackets) 12 are fixed to the arm 3 at the base sides of both fork pieces 11 and are spaced apart vertically.
They are pivotally connected to each other by a pivot 13 so as to be freely pivotable, and have a known structure in which they rotate so as to fit into each other alternately. Each fork piece 11 is provided with an opening/closing drive device 10A for rotating the fork pieces 11 interlockingly or synchronously in the left-right direction in the approaching or separating direction. In this embodiment, the opening/closing drive device 10A is composed of a hydraulic cylinder, one end of which is pivotally connected to a bracket 14 provided on the side of the arm 3, and the other end is integrally formed with the fork piece 11. It is pivotally attached to the connecting piece, and the left and right fork pieces 11.11 are pivoted to open and close symmetrically in synchronization. This opening/closing drive device 10A is also not limited to a hydraulic cylinder,
Known structures consisting of power transmission mechanisms such as links, gear trains, chains, etc. can be used as appropriate. Next, an example of the operation of the implantation device of the present invention will be explained. Transport the hydraulic excavator 1) to the front of the tree to be transplanted,
By operating the boom 2 and arm 3, the bucket 4 penetrates below the base and digs forward. Then, with the root part stored on the bottom surface of the bucket 4, the telescopic drive device 5B is activated to extend the gripping claw portion 8 to a position where it can hold the tree W, and then the opening/closing drive mechanism 5
A is actuated to rotationally displace the gripping arm 7 about the pivot 9 from the position away from the fork piece 11 to the position where it approaches (inner 11). As a result, the upper position of the root of the tree is restrained by the gripping arm member 7 to the gripping claw portion 8 (see FIG. 5, III). Therefore, the tip of the bucket is pulled out above the ground by tilting back the bucket 4 using the third hydraulic cylinder C3. Here, the tree W is restrained by the first gripping device 6,
Since the first gripping device 5 is interlocked with the bucket 4, the tree W is swung together with the bucket 4, roots are easily cut, and the tree W is pulled up together with the bucket 4. It goes without saying that the above-mentioned digging procedure may be modified as appropriate during actual work. Further, in the above description, a case has been described in which the tree W is gripped by the first gripping device 5, but the second gripping device 10 may be used instead of the first gripping device 5 or together with the first gripping device 5. Note that the first gripping device 5 and the second F! If the holding device 10 is also used, trees can be dug up more reliably (6th
Figure 11M). In addition, when using the second gripping device 10 here, the second
The arm 3 is tilted by operating the hydraulic cylinder C2, and the second gripping device 10 is displaced so that the bucket 4 is extended to the road side. Then, the fork piece 11 is pivoted from the closed position to the closed position by the opening/closing drive device 10A to restrain the trunk of the tree W. As shown in FIG. 6, the tree W separated in this way is received by the bucket 4 at the bottom and is gripped near the root and trunk by the first gripping device 5 and the second gripping device 10, and then attached to the arm 3. It is transported and transported along the line. When the tree reaches the transplanting site, the bucket 4 is placed in the transplanting hole, the arm 3 is erected, and the tree is displaced so that it is approximately upright.Then, the first gripping device 5 and the first gripping device IO are released, and the bucket 4 is placed in the transplanting hole. The ejector 4' provided on the rear surface of the bucket 4 is pushed forward to lower it from the bucket 4. In this way, the transplant can be completed. In addition, although the bucket was illustrated as the digging device in the above embodiment, the digging device in the present invention is not limited to a bucket as long as it is a device that is held by an arm and digs up the root part of a tree. Further, the configuration of the gripping device is of course not limited to the above embodiment as long as it can restrain the tree. Furthermore, although a hydraulic excavator is illustrated as an example of a self-propelled vehicle, a wheel loader, a track type loader, or other tractor may also be used.

【Effect of the invention】

As described above, according to the present invention, since the gripping device that is linked to the digging device is provided, the tree can be restrained by the gripping device when digging by the digging device, and the tree can be swung in conjunction with the digging device. The roots can be cut easily and the digging resistance of the digging equipment can be reduced. Since only the gripping device is provided in this manner, there is no need to complicate the structure or increase the size, which is extremely advantageous. In addition, less force is required to dig up trees, resulting in labor savings. Furthermore, during transportation, the tree is restrained at multiple locations, making stable transportation possible.

[Brief explanation of drawings]

FIG. 1 is a side view showing an implantation device according to an embodiment of the present invention, FIG. 2 is a plan view showing a first gripping device, and FIG. 3 is a side view of the same.
4 is a plan view showing the second gripping device, 511 is a side view of the transplanting device that grips a tree with the first gripping device, and FIG. 6 is a side view of the transplanting device that grips the tree with the first and second gripping devices. FIG. ◆Contest 2 ・ ・ 3 ■ 4 ■ 5 ・ ◆ 6 ・ ・ 7 ・ ◆ 8 ・ ・ 9 ・ ・ l O・ 11 ・ C1 ・ C2 ・ ◆Hydraulic excavator, boom, arm, bucket, first gripping device, bracket・Gripping arm portion ・Gripping claw portion ・Pivot ・Second gripping device ・Fork piece ・First hydraulic cylinder ・Second hydraulic cylinder C3・・Third hydraulic cylinder diagram

Claims (4)

[Claims] (1) A bucket or other digging device for digging up the roots of a tree is pivotally attached to the tip of an attachment holding mechanism provided on a self-propelled vehicle so that it can be raised and lowered, and the digging device can be opened and closed from left and right above the digging device. A tree transplanting device characterized by being provided with a gripping device for gripping a tree. (2) A bucket or other digging device for digging up the root part of a tree is pivotally attached to the tip of an attachment holding mechanism provided on the self-propelled vehicle so that it can be raised and lowered, and the attachment holding mechanism is placed above the digging device. A tree transplanting device characterized in that an arm is provided with a gripping device that opens and closes left and right to grip the tree. (3) A bucket or other digging device for digging up the roots of a tree is pivotally attached to the tip of an attachment holding mechanism provided on the self-propelled vehicle so that it can be raised and lowered, and the digging device can be opened and closed from side to side above the digging device. A first gripping device is provided for gripping the vicinity of the root of the tree, and a second gripping device is provided on the arm of the attachment holding mechanism above the first gripping device for gripping the vicinity of the trunk of the tree by opening and closing from side to side. A tree transplanting device characterized by: (4) The tree transplanting device according to any one of claims 1 to 3, characterized in that the digging device comprises an ejector bucket that displaces the rear surface forward to push out the tree placed on the bottom surface.