JPH04106903U - Working part connection structure in root cutting machine - Google Patents

Abstract

(57) [Summary] (with amendments) [Purpose] A root cutting machine that has been improved so that the lateral pressure applied to the root cutting part during work does not deteriorate the straightness of the traveling body and the direction correction operation. Provides a working part attachment structure. [Configuration] The root cutting section is attached to the second hitch, which is attached to the first hitch that is fixed to the traveling body and can be rotated horizontally around the vertical axis, and the setting range is adjusted by horizontal rotation of the second hitch with respect to the first hitch. Inside, the root cutting section can be moved freely left and right relative to the traveling body.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

This invention is constructed by equipping the hitch part of the walking-controlled traveling main body with a root cutting part. The root cutting machine has a working part connection structure that attaches the root cutting part to the traveling body. It is related to

0002

[Conventional technology]

Traditionally, root cutting machines have been equipped with a root cutting section in the hitch section of the tiller. However, in the conventional method, the connected part of the root cutting part is connected to the tiller. It was constructed by being directly connected and fixed to the hitch part of the 655, Utility Model Application Publication No. 63-38701, etc.).

0003

[Problem that the idea aims to solve]

In conventional root cutting machines, the root cutting section is directly attached to the tiller (a walking-controlled traveling body). The lateral pressure applied to the disc blade of the root cutting section during work is applied to the traveling body. Because it directly affects the movement of the vehicle, it is difficult to maintain the running body in a straight line, and the direction of the running body cannot be corrected. It is also difficult to operate as it must be done with the disc blade receiving lateral pressure. However, there are problems such as difficulty in driving meanderingly in mountainous areas. there were. This invention was created in view of these problems, and its purpose is to has been modified to improve straightness during work and to make direction correction operations easier. Our objective is to provide an improved root cutting machine.

0004

[Means to solve the problem]

In other words, the present invention has the first hitch (2) installed on the traveling body (1) centered on the vertical axis. A second hitch (3) is rotatably equipped, and a root cutting section (4) is attached to this second hitch (3). Installation and horizontal rotation of the second hitch (3) with respect to the first hitch (2) (4) is configured so that it can freely move left and right within a set range with respect to the traveling body (1). It is characterized by: Then, the second hitch (3) is switched between a state that allows horizontal rotation and a state that prevents horizontal rotation. A locking and releasing mechanism (5) that can be attached and released is provided between the first hitch (2) and the second hitch (3). You can also.

[0005]

[Function and effect of the idea]

In the root cutting machine in which the working part connection structure of the present invention is implemented, the first hitch (2) The horizontal rotation of the second hitch (3) causes the root cutting section (4) to move relative to the traveling body (1). Because it can freely move left and right within the set range, the disc blade of the root cutting section can reduce lateral pressure. Even under the condition that the traveling body (1) is within the set range, The walking control handle can be moved freely left and right without being affected by the lateral pressure. It is easy to hold and maintain straightness, and you can also swing the walking control handle from side to side. The direction correction operation of the traveling body is now easier, and meandering work in mountainous areas is also easier. It has the advantage that it can be done easily and without damaging the crops. Then, a latching and releasing mechanism (5) is provided between the first hitch (2) and the second hitch (3), and the By switching the mechanism, the state that allows horizontal rotation of the second hitch (3) and the state that prevents it can be changed. By configuring it so that it can be converted to a stopped state, it can be used when not working, such as when driving on the road. For safe driving, make sure to secure the root cutting part so that it does not move from side to side. I can do that.

[0006]

【Example】

Next, embodiments of the present invention will be described with reference to the drawings. Figure 1 is an overall side view of the root cutting machine in which the present invention was implemented, and Figure 2 is an enlarged view of its main parts. 3 is a partially cutaway plan view of the hitch part in FIG. 2 seen from direction A, and FIG. 4 is a partial side view. 3 is a side view of the hitch part seen from direction B, and FIG. 5 is a plan view showing a modification of the present invention. 6 is a plan view showing another modification of the present invention, and FIG. 7 is a plan view showing still another modification of the present invention. The plan view of FIG. 8 is a partial view of FIG. 7 viewed from direction C.

[0007] In Fig. 1, the traveling body (1) is a mission body with traveling wheels (6) (6) mounted on its lower part. The engine (8) is mounted on a frame (7) extending forward from the engine case (M), and its output shaft A transmission mechanism (9) connects the input shaft of the transmission case and the input shaft of the transmission case. The vehicle is configured to travel forward and backward by driving the traveling wheels (6) (6). Additionally, a walking control handle (10) is installed rearward from the top of the mission case. At the same time, the mission case below the base of the walking control handle (10) A first hitch (2) is fixed to the rear part.

[0008] In Figures 2 to 4, the first hitch (2) is shown in a side view as is well known. It has a U-shape that opens backwards, and there are hitch pin insertion holes (11) on the upper and lower walls. The second hitch (3) is attached to the first hitch (2). I get kicked. The second hitch (3) is also formed with the U-shaped portion as its main element, but the front vertical wall of the U-shaped portion A vertical cylinder (13) is fixed to the tip of a support plate (12) extending forward from the cylinder. Insert the body (13) into the U-shaped part from the opening of the first hitch (2), and By inserting the hitch pin (14) into both of them, aligning them with the hitch pin insertion hole (11). Then, the second hitch (3) connects the first hitch (2) with the water centered around the axis of the hitch pin. Mounted for flat rotation. In addition, the horizontal rotation range of the second hitch (3) is projected forward from the outer surface of the vertical wall. The projections (15) (15) are regulated by coming into contact with the first hitch (2). ing.

[0009] The second hitch (3) is removably equipped with a root cutting section (4). However, the root cutting work part (4) is a vertical shaft case hanging from the left and right ends of the passive case (16). - A rotary shaft is supported at the lower end of the base (17) (17), and a root cutting device is attached to each rotary shaft. It is constructed by fitting disc blades (18) (18). Also, a depth is provided at the rear end of the beam (19) extending rearward from the passive case (16). A scale gauge (20) is installed so as to be adjustable up and down, and the front side of the passive case (16) A connecting tool (21) connected to the second hitch (3) is provided in the section.

0010 The connecting tool (21) is formed into a U-shaped body that can be fitted onto the U-shaped portion of the second hitch (3). and the horizontal pins (22) (22) fixed to the upper front end of the upper wall to the second hitch (3) side. The U-shaped part was fitted externally to the second hitch (3) by fitting it into the receiving groove body (23) (23). After that, fix the front end of the lower wall of the U-shaped part and the second hitch side with an appropriate hooking means. can be connected and fixed to the second hitch. The input section (24) of the passive case (16) and the output of the mission case (M) The parts (25) are interlocked and connected by a working part transmission mechanism (26), and this working part transmission The disk blades (18) (18) are forcibly rotated by the power transmitted to the rotating shaft via the mechanism (26). However, the root cutting section (4) is connected to the first hitch (2). Since it rotates horizontally, the working part transmission mechanism (26) has a refracting mechanism to follow the movement. It is equipped with a flexible part (26a) and a telescopic transmission part (26b).

0010 5 to 8 show modified examples of the present invention, and in the example of FIG. 5, the second hitch (3) To reduce the impact when horizontally rotating, the first hitch (2) and the second hitch (3) Shock absorbers (27) (27) such as springs are interposed between them. In addition, in FIG. 6, there is a protrusion (15) that restricts the horizontal rotation range of the second hitch (3). An example of (15) in which the protrusion degree can be changed is shown. Furthermore, in the examples of FIGS. 7 and 8, from the cylindrical body (13) part of the second hitch (3) on both sides The wing portions are made to protrude to form a member corresponding to the protrusions (15) (15), and these serve as the second hinge. When horizontally rotating the hitch, it comes into contact with the inner surface of the vertical wall of the first hitch (2) to restrict the range of movement. It is configured as follows. In addition, in this example, a pin insertion hole is provided in the wing portion, and this pin insertion hole is Align it with the other hitch pin insertion hole (11) of the first hitch (2), and insert the stop pin across both. By inserting the pin (28), the second hitch (3) is locked so that it does not rotate horizontally. It has a latching and releasing mechanism (5) that allows it to be held in place. Therefore, according to this example, by switching and operating the latch/release mechanism (5), Therefore, it is possible to change the state between allowing and blocking horizontal rotation of the second hitch (3). When driving, etc., secure the root cutting section so that it does not move from side to side. can do.

[Brief explanation of the drawing]

FIG. 1 is an overall side view of a root cutting machine in which the present invention is implemented.

FIG. 2 is a partial side view showing an extracted and enlarged main part of the root cutter in FIG. 1;

FIG. 3 is a partially cutaway plan view of the hitch portion of FIG. 2, viewed from direction A;

4 is a side view of the hitch portion of FIG. 3 viewed from direction B; FIG.

FIG. 5 is a plan view showing a modification of the present invention.

FIG. 6 is a plan view showing another modification of the present invention.

FIG. 7 is a plan view showing still another modification of the present invention.

FIG. 8 is a partial view of a modification of FIG. 7 as seen from direction C;

[Explanation of symbols]

1 Traveling body 2 First hitch 3 Second hitch 4 Root cutting section 5 Latch release mechanism

Claims (2)

[Scope of utility model registration request] [Claim 1] A first hitch installed on the traveling body (1)
(2) is equipped with a second hitch (3) that can rotate around the vertical axis,
Attach the root cutting part (4) to this second hitch (3), and
The second hitch (3) is horizontally rotated with respect to the hitch (2) so that the root cutting part (4) can be freely moved left and right within a set range with respect to the traveling body (1). Working part connection structure in root cutting machine. 2. A locking and releasing mechanism (5) that can be switched between a state of allowing horizontal rotation of the second hitch (3) and a state of blocking it;
A working part connection structure in a root cutting machine according to claim 1, which is provided between the first hitch (2) and the second hitch (3).