JPS5930644Y2 - Leveling device in tillage equipment - Google Patents

Description

[Detailed Description of the Invention] This invention relates to an improvement of a leveling device in a tillage device.

As is well known, the tillage device installed on tractors etc.
A rear cover 9.9 as shown in the figure and the second figure is provided, and is adapted to obtain a level plowing surface by lowering mechanisms 15, 15, respectively.

The rear cover 9 shown in FIG.
Mounting plate 13 and its bolts 1 for attaching the lower end of
4 protrudes downward from this point, which has the disadvantage of leaving streaks a on the plowing surface.In order to overcome this problem, the flattened portion 9a is made into a rolled-up shape as shown in the second example, and an elastic section is formed on the upper part of this part. It is also possible to connect the lower mechanism 15, but although this does not leave any streaks, it is disadvantageous in that it takes considerable time and effort to form and is expensive.

This invention was devised to solve the above problem, and its purpose was to make the tilling surface very clean without streaks, and it was devised to be a distant cousin at a low cost. The present invention provides a leveling device for a tillage device, in which a leveling portion is formed at the tail of a rear cover of the tilling device, and a lower end of a lowering mechanism that biases the leveling portion in the direction of contact with the ground protrudes into the leveling portion. In the device that is attached to the flattened part through a fixing tool, the flattened part consists of a front flattened part and a rear flattened part, and the lowering mechanism is attached to the front flattened part through the fastener. The lower part is attached, and the rear flat part is connected to the front flat part via a protruding part that forms a space that does not touch the ground between the front and back, and the front side of the rear flat part is connected to the rear flat part. has an inclined surface,
The present invention is characterized in that a rear flat portion is formed that faces lower than the fixing device of the front flat portion through the inclined surface.

The specific examples shown in the drawings will be described below.

Figure 3 and Figure 4 showing the main parts thereof are examples of a tilling device attached to the rear of an agricultural tractor (not shown), in which 1 is a well-known three-point link mechanism, 2 is a transmission case on the left side, A side cover 3 includes a top mast 4 connected to the link mechanism 1 and a plowing depth adjustment mechanism 6 for raising and lowering the rear two-wheel device 5.

Reference numeral 7 denotes a rotary cover provided along the upper side of the tilling claw trajectory, and a rear cover 9 is pivotally connected to the rear end of the cover 7 via a hinge 8.

A flat portion is formed at the tail portion of the rear cover 9.

The flat portion includes a front flat portion 10 that projects downward in an arc shape, and a rear portion that is connected to the front flat portion 10 via a mountain-shaped projected portion 17 that has a space S that does not touch the ground between the front and back. Leveling section 11
It consists of.

A pivot bracket 12 is provided on the upper side of the front flat portion 10.
A mounting plate 13 is provided on the lower side, and a bolt 14 is used to secure the bracket 12 and the mounting plate 13, and a bullet lowering mechanism 15 is installed.
It is connected to the main body via a stay 16.

That is, the bullet lowering mechanism 15 that biases the flat part in the ground contact direction is attached to the front flat part 10 via a fixing device consisting of a bracket 12, a mounting plate 13, a bolt 14, etc., and the fixing device
In this example, the bolt 14 protrudes below the flat portion.

The protrusion portion 17 is formed on the tail portion of the rear cover 9 over the entire left and right direction, and since it is in the shape of a mountain, the entire surface side of the rear flat portion 11 has a rear downward slope, and the front portion is The fixing tool for the flattened portion 10, in this example, is formed at a lower level than the bolt 14, that is, a rear flattened portion 11 facing the bolt 14 with a difference in height.

According to the above embodiment, the lowering mechanism 15 allows the front flattened portion 1 to
0 is biased in the direction of contact with the ground, and it is possible to level the plow marks here. At this time, even if streaks a are left by the bolts 14, the rear leveling part 11 erases them, resulting in a clean leveled surface. It will be done.

When leveling the second stage, the protrusion portion 17 corresponding to the space S
acts as a resistance portion, so that it resists bending and twisting, for example, about the longitudinal axis, so that the rear flattened portion 11 is always horizontally flattened in the width direction as shown in Fig. 4. act.

Also, the space S functions to store a portion of excess soil and release it to the left and right, or to supplement the amount of soil when the amount of soil to be leveled is temporarily reduced.

In the present invention, the flat part formed at the tail of the rear cover consists of a front flat part and a rear flat part, and the bullet lowering mechanism is attached to the front flat part via a fixing device. Therefore, the equalizing pressure can be accurately and reliably transmitted to the equalizing part without having to create a complicated shape.

Moreover, at this time, the streak marks caused by the fixing tool can be erased by the rear flattened portion which is connected to the lower part through the protruding portion having a space.

The leveling part is composed of a front leveling part and a rear leveling part,
A strong leveling pressure is created at the front leveled area, and at this time, the remaining streaks are erased at the rear leveled area, creating a wide leveling effect.Moreover, the front side of the rear leveled area is Because it is a sloped surface, the flow of soil during leveling is smooth, and since the front and rear leveling sections are connected with a ridge with a space, excess soil from the previous stage leveling can be retained in the space. This has the advantage that not only can the flattened portion be left in place, but also the flat portion can provide sufficient resistance to bending and twisting.

[Brief explanation of drawings]

1 and 2 are side views of a conventional tilling device, FIG. 3 is a side external view of the tilling device showing an example of this invention, and FIG.
The figure is an enlarged view of the main parts. 9... Rear cover 10... First leveling part, 11... Second leveling part, S... Space.

Claims (1)

[Scope of utility model registration request] A flat part is formed in the tail part of the rear cover of the tillage device, and the lower end of a lowering mechanism that urges the flat part in the direction of contact with the ground is attached to the flat part via a fixing device protruding from the flat part. The flattened part consists of a front flattened part and a rear flattened part, and the lower part of the bullet lowering mechanism is attached to the front flattened part via the fixing device, and The rear flat part is connected via a protruding part that forms a space that does not touch the ground between the front and back, and the front side of the rear flat part has a rear downward slope, and the front flat part is connected through the slope. A leveling device for a tillage device, characterized in that a rear leveling portion is formed that faces lower than the fixing device of the flat portion.