JPS6021933Y2 - Rotary for digging up onions - Google Patents

Description

[Detailed description of the invention] This invention relates to a rotary for digging up onions that is towed by a tiller.

To dig up green onions, as shown in Figure 1, it is necessary to break down one side of the ridge W (section T in the same figure) without damaging the roots of the green onions. As shown in FIG. 2, a working shaft 2 is provided on one side of a vertical transmission case 1 in an upward acute angle direction with respect to the case 1, and several rotary digging blades 3 are attached to the working shaft 2. A device has been developed that performs earthmoving while blowing the soil in the T part of the ridge W in the opposite direction as the aircraft advances.

However, with this type of rotary, the machine is forced to move in the direction of the soil thrown away during work, so the digging blade part escapes inward, creating an unstable situation and making it impossible to move the soil sufficiently.

Of course, the tailwheel acts as a resistance at this time, but since the tailwheel is arranged on the same straight line as the transmission case, it is located at the center of the valley of the ridge and does not act as sufficient resistance against the above-mentioned biasing force. .

This proposal was made in view of these circumstances, and will be explained below with reference to the embodiments shown in the drawings (Figs. 3 to 5). In Fig. 5, A is the main body of the rotary, 1 is its transmission case, and 2 is a working shaft protruding from one side of the case 1 at an acute angle upward with respect to the case 1, and several rotary digging blades 3 are attached to the working shaft 2.

Note that 2' is a working shaft protruding from the opposite side, 5 is an auxiliary rotary blade attached to the opposite working shaft 2', and 6 is a fender.

Now, in this type of rotary, a tail wheel mounting plate 7 is provided behind the main body A so as to be adjustable left and right, and a vertical adjustment 9 of the tail wheel is inserted into an insertion portion 8 provided in the vertical direction on the tail wheel mounting plate 7. A wheel shaft 10 is inserted into the vertical shaft 9 so as to be vertically adjustable, and a wheel shaft 10 is attached to the lower end of the vertical shaft 9 in an upward acute angle direction with respect to the vertical shaft 9, following the direction of the working shaft 2.
The tail wheel 11 is attached to the wheel shaft 10 of the wheel.

In addition, 12 in the drawing is a long hole provided on the main body A side for left and right adjustment, 13 is a bolt/nut for tightening the tail wheel mounting plate 7, and 14
is a tightening screw provided in the insertion portion 8 for tightening and fixing the vertical axis 9.

In this case, as described above, the tail wheel 11 is installed at an angle with respect to the vertical axis 9 following the direction of the working axis 2, so that the digging blade 3 bites into the T part of the ridge W as shown in FIG. In the crowded state, the tail wheel 11 always bites into the hem of the ridge W, thus exerting a sufficient blocking force against the biasing force acting on the machine body during work, making it possible to perform reliable earthmoving work with stable running. Become.

In addition, the tail wheel mounting plate 7 can be moved and fixed to the left and right with respect to the main body A, and the vertical tail wheel 9 can also be moved and fixed up and down, so the tail wheel can be fixed according to the condition of the ridge (height and width). The position of the ring 11 can be changed.

FIG. 4 is an example of this. Since the width of the ridge (that is, the valley) is narrow, the tail wheel mounting plate 7 is moved to the right in the same figure, and the vertical axis 9 is shifted to the right, so that the tail wheel 11 is attached to the hem of the ridge W. Adjust it to the correct position.

From the above, the present invention is a distant relative of the original purpose, and is extremely useful as a way to dig up green onions reliably and efficiently in accordance with the conditions of the ridges.

[Brief explanation of the drawing]

The drawings show an example of the present invention. Figure 1 is a schematic back view showing the shape of the green onion ridges and the part of the soil that is broken during digging, and Figure 2
The figure is a schematic diagram showing the state of earthmoving by an excavation rotary (
Figure 3 is a schematic rear view showing the state of earthmoving by the rotary according to the present invention, Figure 4 is a schematic rear view of the same in the case of a different ridge shape, and Figure 5 is a perspective view. 1...Rotating digging blade, 2...Working axis, 3
・Curved/rotating digging blade, 7...Tail wheel mounting plate, 8...
...Insertion path, 9...Tail wheel vertical disease, 10...
...Wheel axle, 11...Tail wheel, A...
Ta-tari body.

Claims (1)

[Scope of utility model registration request] A tail wheel is mounted behind a rotary main body A, which has a working shaft 2 protruding from one side of the transmission case 1 in an upward acute angle direction with respect to the case 1, and rotary digging blades 3 are attached to the working shaft 2 in several strips. A mounting plate 7 is provided so as to be adjustable in the left and right directions, and a tail wheel vertical plate 9 is vertically and vertically adjustable inserted into an insertion portion 8 provided in the vertical direction on the tail wheel mounting plate 7. This rotary for digging up onions is characterized in that a wheel shaft 10 is mounted in an upward acute angle direction with respect to the vertical axis 9 following the direction shown in FIG.