JPH0513121Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Purpose of the Invention] (Field of Industrial Application) This invention relates to a tiller claw used in a tillage device for cultivating a field.

(Prior Art) As a conventional tiller, there is one shown in FIG. 1, for example. This tilling claw has a vertical blade 103 at the turning front edge of the blade body 101, and a mounting part 1 attached to a claw holder (not shown) of the tilling shaft at one longitudinal end.
It has 05. Therefore, as the tilling shaft rotates, the blade 101 cuts into the field from the vertical blade 103.
It is possible to cultivate the land. However, when the blade 101 cuts into the field, weeds etc. growing in the field get wrapped around the claw holder, and this wrapping occurs on almost all of the many claws.
There was a problem in that the removal became extremely troublesome and the tilling work became labor intensive.

(Problems to be Solved by the Invention) This invention was devised in view of the above-mentioned problems, and aims to provide a tilling claw that can reduce the amount of grass, etc. that gets wrapped around the claw holder.

(Example) Hereinafter, an example of this invention will be described in detail based on FIGS. 2 to 5.

Fig. 2 shows a front view of the forward/reverse rotating claw 1, Fig. 3 is a side view, Fig. 4 is a bottom view, and Fig. 5 is a Fig. 2-
It shows a cross-sectional view taken along the line, and has a solid blade body 1 and a mounting portion 3. Vertical blades 5 and 7 are formed on the front and rear edges of the blade body 1. The mounting portion 3 and the blade body 1 are formed from a single flat steel plate. As shown in FIG. 1, the blade 1 has a heart shape that is continuous with the attachment part 3, and as shown in FIG. 3, the tip has a tilling shaft 9.
It is curved in the axial direction.

The mounting portion 3 is fixed to a claw holder 11 fixed to the tilling shaft 9 with bolts (not shown), and anti-wrapping claws 13 are provided at the front and rear portions of the mounting portion 3 in the rotational direction. , 15 are provided. This anti-wrapping claw 13 has an auxiliary blade body 13a and an auxiliary blade body 13b, and the auxiliary blade body 13a has a gap S between which the claw holder 11 can fit between the auxiliary blade body 13a and the mounting portion 3.
The blade body 1 is disposed with the following shapes and is integrally molded with the blade body 1. The auxiliary blade body 13b is formed as an extension of the vertical blade 5. The winding prevention pawl 13 is formed to protrude in a substantially trapezoidal shape in the direction in which the mounting portion 3 protrudes. Since the wrapping prevention pawl 15 is formed approximately symmetrically with the wrapping prevention pawl 13, a detailed explanation will be omitted.

Next, the operation of the above embodiment will be described.

As the tilling shaft 3 rotates to one side (rotation counterclockwise in FIG. 2), the blade body 1 cuts into the field from the vertical blade 5, and the field is tilled. At this time, the anti-wrapping claw 13 slightly protrudes from the field, and the auxiliary blade 13b cuts off weeds and the like growing in the field. Therefore, weeds etc. can be removed from the claw holder 11 or
In particular, the attachment portion 3 at the tip of the claw holder 11, which tends to be easily wrapped, is no longer or less likely to be wrapped. Therefore,
The work of removing weeds wrapped around a large number of tilling claws is reduced and the work is made easier. In addition, even if the length from the tiller shaft 9 to the tip of the tiller claw is the same as before, if the length is cut into the field as far as the anti-wrapping claw 13,
The plowing depth can be increased, and the effect is that a deep plowing depth can be obtained without increasing the size of the tilling device. Moreover, since the blade body 1 of the above embodiment has a solid heart shape, it is possible to completely collect the soil after cutting into the soil in the field, and at that time, the grass in the collected soil can be removed by the auxiliary blade. Since the cutting is performed at 13b, it is possible to reliably prevent grass from getting wrapped around the holder. Furthermore, auxiliary blade bodies 13a, 15a
Since it is formed into a substantially trapezoidal shape facing in the cutting direction (rotation direction), it has the effect of having rigidity against bending and ensuring strength.

FIGS. 6 and 7 show another embodiment in which the anti-wrapping pawl 17 is provided only on one side in the rotational direction. Since the other configurations are substantially the same as those of the above-mentioned embodiment, the same reference numerals will be given and the explanation will be omitted.

Note that this invention is not limited to the above embodiment.
For example, the height of the anti-wrapping claws 13, 15, 17 is not limited to the one that wraps halfway around the claw holder 11, but can also extend to reach the tilling shaft 9 or more. The anti-wrapping claws 13, 15, 17 can also be configured separately from the blade body 1. The tilling claws are not limited to forward and reverse rotating claws, but can also be applied to general tilling claws such as machete claws.

[Effects of the Invention] As is clear from the above, according to the configuration of this invention, it is possible to reduce weeds and the like from wrapping around the claw holder etc. by the anti-wrapping claw.

In particular, the anti-wrapping claw is formed in a substantially trapezoidal shape in the protruding direction of the attachment part, so it is less susceptible to soil resistance, and weeds and other objects that try to wrap around the anti-wrap claw can easily fall out and become entangled. Prevention performance can be further improved.

[Brief explanation of the drawing]

Figure 1 shows a conventional tiller, Figures 2 to 5 show an embodiment of this invention, Figure 2 is a front view, Figure 3 is a side view, Figure 4 is a bottom view, and Figure 5 is a bottom view. Figure 2-
A cross-sectional view taken along the line, FIG. 6, and FIG. 7 show other embodiments of this invention, with FIG. 6 being a front view and FIG. 7 being a side view. 3... Attachment part, 5, 7... Vertical blade, 9... Tilling shaft, 13b, 15b... Auxiliary blade.

Claims (1)

[Scope of utility model registration request] A tilling claw having an anti-wrapping claw that has an auxiliary blade in the same direction as the vertical blade on the rotation direction side of the mounting part attached to the claw holder of the tilling shaft, which has a heart shape continuous to the mounting part and whose tip is a tiller. It consists of a flat solid blade body curved in the axial direction and an auxiliary blade body integrated with this blade body. A tilling claw characterized by having.