JPH0220941Y2 - - Google Patents

Description

[Detailed description of the invention] ...Purpose of the invention As attachments for hydraulic tractor shovels, in addition to the various types of buckets that are mainly used, various attachments are used depending on the purpose. There is a root cutting attachment for cutting the roots of standing trees (plants, natural trees, etc.) in order to replant them.

Since then, when replanting a large tree, pre-root pruning is done, which involves cutting the thick roots in the soil at a certain size around the trunk, leaving the tree with its roots cut. This is because if you dig it up and transplant it when it has adapted to the weather (for example, about a year later), it will not wither, unlike if the roots were suddenly cut and you transplanted it immediately.

In addition, recently, when creating golf courses, parks, etc., when it is desired to leave natural trees in some places and they become a hindrance to the construction work, it is necessary to cut the roots of the trees and dig them up.
It is also done by temporarily gathering the plants in a different location and later replanting them at the desired location.

When performing the above-mentioned work using the powerful power of a hydraulic tractor shovel, the root cutting attachment is attached to the shovel and inserts the blade of the main ripper into the soil around the trunk of a standing tree. It is used to cut the root by cutting the root.

The present invention relates to the structure of the root cutting attachment, and is particularly characterized in that a sub-ripper for root raising is provided so that the angle thereof can be adjusted freely.

...Structure of the present invention Next, the structure of the present invention will be described with reference to an example.Brackets 3,3 with shaft holes 2,2 are fixed to the front surface of the base 1 formed in the shape of a hollow box, and the brackets 3,3 are In between, arms 4, 4 actuated by a hydraulic cylinder of a hydraulic tractor shovel (not shown)
Insert the tip of the shaft hole 2,
Trapezoidal plate-shaped main rippers 5, 5 are fixed in parallel to the left and right sides of the base 1 at a set interval, and the main rippers 5, 5 are At least one sub-ripper 7 (however, two sub-rippers 7, 7 in the illustrated example) is formed in the shape of a narrow plate, with a blade part 6 formed from its front edge to its sharp lower end, and a plow-shaped claw 9 formed at its tip. ,
At an intermediate position between the main rippers 5, 5, which are fixed parallel to the back surface of the base 1, that is, to the left and right side surfaces of the base 1, a projecting part is installed which can freely adjust the angle with respect to the main rippers 5, 5.

The angle of the sub rippers 7, 7 can be adjusted by, for example, using a semicircular plate 10 fixed upright on the back surface of the base 1,
Sub-ripper 7 with axis 11 at the center of circle 10,
The upper end of 7 is rotatably pivoted, and bolts 14 are removably inserted into appropriate holes of adjustment holes 12 drilled at equal intervals along the circumference of the circle and bolt holes 13 on the sides of the sub-rippers 7, 7. I will do it.

In addition, the parallel spacing dimensions set for the main rippers 5 and 5 vary depending on the thickness of the trunk of the target tree (several types of attachments with different sizes of parallel spacing are prepared), but usually they are 5 times the thickness of the trunk. For example, for a standing tree with a trunk diameter of about 10 to 20 cm, a tree with a diameter of about 50 to 100 cm should be provided.

The sub-ripper 7 is the back side of the base 1, that is, the base 1
At least one ripper is installed at an intermediate position between the main rippers 5, 5 fixed parallel to each other. That is, it is optional to provide only one in the center, or to provide two in parallel at an interval as shown in the illustrated example.

While the main rippers 5 and 5 use their blades 6 to cut through the soil and cut the roots of standing trees, the purpose of the sub ripper 7 is not to cut the roots, but to dig up the lower part of the roots, lift them up, and pull them out. , the tip thereof is provided with a spade-like claw 9 similar to the claw of a bucket.

...Functions and Effects of the Present Invention In the above configuration, the present invention moves the tractor shovel near the tree, operates the arm, and moves the tractor shovel to the fourth position.
As shown in the figure, the tips of the main rippers 5 and 5 of the proposed attachment are inserted into the soil around the trunk 15 of a standing tree, and the tips are rotated forward to cut the soil and cut the roots at the same time. With the forward rotation of the main rippers 5, 5, the sub-rippers 7, 7 protruding from behind enter the lower part of the root of the standing tree, lift and float the entire root, and with the subsequent rotation, completely excavate the root. Raise the tree, then raise the arm to extract and lift the entire tree, and then move the tractor and transport it anywhere.

Therefore, you can stop the root cutting with the main ripper 5, 5, or further cut the root with the sub ripper 7,
7 to lift it up, raise it completely, pull it out by lifting the arm, and move it to another place with a tractor. This can be adjusted freely by adjusting the rotation angle of the proposed attachment and operating the arm depending on the purpose. There are features that can be used.

[Brief explanation of the drawing]

Figure 1 is a front view of the proposed attachment, Figure 2 is a sectional view taken along the line A-A, Figure 3 is a rear view, and Figure 4 is a rear view.
Figures A and B are explanatory diagrams of the root cutting and digging of standing trees by the attachment of the present invention. Number, 1...Base, 2...Shaft hole, 3...
...Bracket, 4...Arm, 5...Main ripper, 6...Blade section, 7...Sub ripper, 8...
Shaft, 9...Claw, 10...Semicircular plate, 11...
...Shaft, 12...Adjustment hole, 13...Bolt hole, 14
...Bolt, 15...Trunk of a standing tree.

Claims (1)

[Claims for Utility Model Registration] Brackets 3, 3 with shaft holes 2, 2 are fixed to the front surface of a base 1 formed in the shape of a hollow box, and trapezoidal plate-shaped brackets 3, 3 with shaft holes 2, 2 are fixed to the front side of the base 1 formed in the shape of a hollow box. fixed main rippers 5, 5, each of which has a cutting edge 6 formed at its front edge and a sharp end, and at least one sub-ripper 7 in the shape of a narrow plate with a claw 9 formed at its tip; Main rippers 5, 5 fixed parallel to the back of the base 1, that is, the base 1
A root cutting attachment for a tractor shovel is installed in a protruding position at an intermediate position between the main rippers 5 and 5 so as to be able to freely adjust the angle thereof.