JPH025681Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a soil plate device in which the angle of the lower portion of the soil plate can be adjusted in the direction of travel.

This invention provides a soil plate device capable of changing the height of the ridges and reducing the resistance of the soil plate to the soil.

An embodiment of the present invention will be described in detail below based on the drawings.

FIG. 1 shows the general structure of a walk-behind tiller 1, in which a rotary tiller 5 is connected to a rear hit portion 3. The prime mover 9 of the walk-behind cultivator 1 is connected for transmission to the upper part of the transmission case 7 containing a power transmission mechanism, and the tiller blades 13, etc. are appropriately arranged on the tiller shaft 11 extending left and right at the lower end. The tilling section 15 is constituted by the tilling section 15. Rotary machine frame 17
The soil plate device 2 is attached to the support device 19 provided at the rear of the
1 is installed. FIG. 2 is a rear view of the soil plate device 21, and FIG. 3 is a cross-sectional view taken from the side shown in FIG. , is provided so that it can be bent forward by a link 31 about a hinge 29. The link 31 is a fixed nut portion 3 supported by brackets 33 and 35.
When the screw shaft 41 moves downward by rotating the handle 43, the lower end of the link 31 is pushed forward, and the lower end of the link 31 is pushed out below the soil plates 23, 25, 27. Part 23
a, 25a, 27a are bent forward. The spaces 45 and 47 in the center of the soil plate device 21 are relief portions corresponding to the ridges created by the soil plate device 21, and are the spaces 45 and 47 in the center of the soil plate device 21.
5, 25a, 27, 27a, a bent portion 23 having an appropriate width is provided in the portion touching the space portions 45, 47.
b, 25b, and 27b are formed and provided.

With the above configuration, the following soil cultivation work after rotary tilling can be performed. That is, by towing the soil plate device 21 by the power cultivator 1, the soil plates 23, 25, 27 perform the work of raising ridges corresponding to the spaces 45, 47 while cultivating rotary tilled soil. When the screw shaft 41 is rotated by rotating the handle 43, the screw shaft 41 descends while engaging nuts 37 and 39 fixedly provided by the brackets 33 and 35, and the soil plate is connected via the link 31. The lower portions 23a, 25a, 27a of the soil plate are bent forward about the hinge 29, and together with the upper portions 23, 25, 27 of the soil plate, form an appropriate rake angle with respect to the soil surface to resist cutting. In addition to making it possible to perform soil cultivation work easily by reducing
This has the effect that the height of the ridge can be lowered according to the bending angle.

Since the present invention has the structure described in the claims of the utility model registration, the lower part of the soil plate divided into two parts can be rotated at any angle in the forward and backward direction of movement relative to the upper part of the divided part. This makes it possible to arbitrarily select the height of the ridges, and even though this soil plate is divided into two parts (top and bottom), even if you change the angle of the bottom part, it remains continuous with no gap between the top and bottom parts. A surface is formed, there is no dirt accumulation, cutting resistance is reduced, and the soil guiding action is performed extremely smoothly. Moreover, even if the angle of the lower part of the division is adjusted, the upper part of the division can be kept fixed, and the relative positional relationship between the rotary machine frame, which is also on the fixed side, and the above-mentioned upper part of the division does not change, maintaining continuity between the two. becomes possible. Therefore, it is possible to prevent the soil, etc. that has been thrown up by the tilling blade and crushed by colliding with the rotary machine frame from escaping between the rotary machine frame and the divided upper part of the soil plate, thereby achieving good tillage soil conditions. can be obtained. Since the relative positional relationship between the divided upper part of the soil plate and the rotary machine frame does not change despite the adjustment of the divided lower part, there is no need to consider changes in the relative positional relationship when assembling the two, and the design is facilitated. It is also possible to create a scooping angle of zero in the divided lower part, and it is possible to correspond to various work forms.

Although a walk-behind cultivator is used in one embodiment of the present invention, the tow vehicle is not limited to the walk-behind tiller, and may be a riding tractor or a multi-working machine. It goes without saying that cams and gears can also be used for the longitudinal angle adjustment mechanism. That is, the present invention is not limited to the one embodiment described above, and the present invention can be implemented in other embodiments other than the above-mentioned embodiment.

[Brief explanation of the drawing]

Figure 1 is an overall view showing a conventional walk-behind cultivator rotary tilling while towing a soil plate device to cultivate soil, and Figure 2 is an example of an implementation of the soil plate device of the present invention. FIG. 3 is a rear view showing an example, and FIG. 3 is a cross-sectional view taken from FIG. 21...Soil plate device, 23, 25, 27...Soil plate, 23a, 25a, 27a...Lower portion, 2
9... Hinge.

Claims (1)

[Scope of utility model registration request] The soil plate is divided into two parts, upper and lower, and the upper edge of the lower part of the divided part is tightly supported via a hinge on the lower edge of the upper part of the divided part.
A cultivating soil plate device characterized in that a divided lower part is configured to be rotatable and fixed in a forward and backward direction relative to a divided upper part.