JPH0228641Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a tilling claw attached to a tilling shaft of a rotary tilling device. Naginata nails are generally known as this type of tillage nail, and although these nails are suitable for tasks such as tilling, turning, and crushing soil, they are not suitable for cultivating soil. In other words, it is difficult to move plowed soil laterally to gather the soil around the roots of crops and to cultivate the soil. For this reason, in order to perform cultivation work using a rotary tillage device, the tilling claw must be curved a predetermined amount in an appropriate direction to the right or left from the base, which is installed on the tilling claw mounting bracket of the tilling shaft. , tilling claws that also serve as soil cultivation are used, but many of these dual-purpose claws emphasize the lateral reversal function, which not only wastes power due to too much lateral pressure, but also reduces the amount of soil that can be turned over, making it difficult to till. There were also drawbacks, such as insufficient use of crushed soil through the cover.

The present invention relates to an improvement of tillage claws that eliminates the above-mentioned drawbacks, and is capable of increasing the amount of soil to be turned by providing both a side-turning function and a rear-turning function. The aim is to reduce power consumption.

One embodiment of the present invention will be described in detail below with reference to the drawings. The tilling claw 1 consists of a base 3 and a blade 5, and the spine 7 shows a curved part. Cultivating claw 1 is the base 3
A mounting hole 9 provided in the holder allows it to be mounted to a tilling shaft (not shown) via a mounting mechanism (not shown). The tilling claw 1 has a halberd shape that is gently curved laterally from the base 3 to the tip. In addition, the tilling claw 1 has this degree of curvature at the base 3.
It gradually increases in size from the tip to the tip, and the entire halberd-shaped tilling claw 1 is smoothly curved. In addition, the degree of curvature of the spine 7 of the tilling claw 1 is the same as that of the blade 5.
The entire body is twisted so that the degree of curvature is smaller than that of the curve. In addition, the tilling claw 1 is usually made of steel,
By appropriately selecting the thickness of the steel material, it can be made to have appropriate elasticity, and by combining the curved shape of the claw of the present invention and elasticity, the height of the jump can be increased.

Next, to explain how to attach this claw, it is attached to the tilling shaft so that the bent side of the claw faces in the direction in which soil is to be scattered. Generally, a plurality of claws are attached to the tiller shaft, but by appropriately adjusting the direction in which they are attached, the number of claws attached, etc., it is possible to move an appropriate amount of soil in an appropriate direction.

Next, the work of attaching the claw of the present invention to an agricultural machine or the like will be explained. The claws of this invention are curved by the required amount in the direction in which soil is to be moved.
Plowing work can be performed while moving the soil in the curved direction. Depending on the condition of the soil before work, for example, if a ridge has already been formed, the claws of the present invention can be attached to match the direction of movement of the soil and the ridge breaking work can be carried out. If the soil is in the pre-filling state, ridge formation and soil cultivation work can be performed by moving the soil. Since the entire halberd-shaped tilling claw 1 is smoothly curved, the soil is smoothly cut into the soil by the blade portion 5. Also,
Since the entire body is twisted so that the degree of curvature of the spine 7 is smaller than the degree of curvature of the blade 5, the angle at which the blade 5 cuts into the soil becomes sharper, and the angle at which the blade 5 cuts into the soil becomes sharper. , you can tap the soil with this tip to make a smooth cut without having to pinch it. Therefore, the resistance received from the soil is reduced, and the power required to rotate the tilling claws 1 can be reduced. Furthermore, vibrations generated when the tilling claws 1 are driven to rotate can be reduced.

Furthermore, since the entire halberd-shaped tilling claw 1 is smoothly curved, a sufficient amount of the cut soil is guided and turned over from the base 3 to the tip, that is, by the entire tilling claw 1.

In addition, unlike the conventional tillage claws 1, a curved portion is not formed in the middle thereof, so that the curved portion is not locally worn by soil. Therefore, the entire tilling claw 1 is gradually worn down, and wear resistance can be improved.

By the way, the soil that has been cut into is
The resultant force of the force received in the circumferential direction from the tiller and the moving speed of the tiller claws 1 (moving speed of the tiller) causes a sufficient amount to be thrown up backwards. At this time, since the degree of curvature of the tilling claws 1 is gradually increased from the base to the tip, the cut soil is thrown up more strongly backwards. In addition, a sufficient amount of the cut soil is also more forcefully thrown up to the side by the tilling claws 1 which curve laterally. In this way, a sufficient amount of the soil thrown up more strongly backwards and sideways can strongly collide with the tilling cover and be fragmented, thereby improving the crushability. In addition, due to this improvement in soil crushability, compacted soil is located in the lower layer of the soil, and finely divided soil is located in the upper layer, making it possible to perform ideal tillage, embankment, and soil cultivation operations. Can be done.

On the other hand, when plowing in with tilling claw 1, this tilling claw 1
The entire body is smoothly curved, and the tip opens upward (vertebral region 7
Since the straw is twisted as a whole so that the degree of curvature of the blade part 5 is smaller than the degree of curvature of the blade part 5, the straw receives a force in the direction of separation. This prevents the straw from getting caught, suppressing the straw from becoming entangled, and improving the plowing performance.

As explained above, according to this invention, the soil is cut smoothly in a flowing manner, and the cutting angle of the blade part is sharp, making it possible to cut smoothly without hitting the soil with the tip and grabbing it. Can be done. Therefore, the power required to rotate the tilling claws can be reduced, and the vibrations generated at this time can be reduced.

Further, a sufficient amount of the cut soil is guided and turned over by the entire tilling claw.

Furthermore, since the tilling claws are worn out little by little, wear resistance can be improved.

In addition, a sufficient amount of the soil thrown up more strongly backwards and laterally can collide strongly with the tillage cover and be fragmented, thereby improving the crushability. Furthermore, this improvement in soil crushability provides an ideal soil composition in which aggregated soil is located in the lower layer of the soil and fragmented soil is located in the upper layer, and the phenomenon of soil circulation is reduced.

Also, when the straw is plowed in with the tiller claws, the tip opens upwards, so the straw receives force in the direction of separation. For this reason, the straw does not get caught and winding is suppressed, and the plowing performance can be improved.

[Brief explanation of the drawing]

Fig. 1 is a plan view of a conventional plowing claw, Fig. 2 is a side view thereof, Fig. 3 is a plan view of a conventional cultivating soil claw, Fig. 4 is a side view thereof, and Fig. 5 is the one according to the present invention. A plan view of the tilling claw, and FIG. 6 is a side view thereof. Explanation of the symbols representing the main parts of the drawing, 1...
Cultivating claw, 3... base, 5... blade, 7... spine.

Claims (1)

[Scope of utility model registration request] It is a halberd-shaped tilling claw that is gently curved laterally from the base to the tip, and the degree of curvature is gradually increased from the base to the tip. A tilling claw characterized in that the entire nail is smoothly curved, and the entire nail is twisted so that the degree of curvature of the spine is smaller than the degree of curvature of the blade.