JPS5881702A - Rotary cultivator - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a rotary tiller, and more particularly, to a rotary tiller equipped with a rake having a soil leveling function.

A rotary tiller consists of a tiller shaft with multiple tillers mounted at equal intervals in the circumferential direction and in multiple rows.It is one of the most widely used agricultural machines with the functions of tilling and crushing soil. It is. In order to improve the soil crushing and leveling functions of this rotary tiller, a rotary tiller equipped with a rake behind the rotary claw group is known. Therefore, during tilling work, depending on the soil, lumps of soil may get stuck between the rake and the rotary claw, reducing the ability of the rake to level the soil, and the rake may get in the way when replacing the tilling blade, so it must be removed. Disadvantages such as:

It was annoying.

Therefore, this invention aims to solve the drawbacks of rotary tillers equipped with a rake, such as the problem of soil sticking to the tiller and the difficulty of replacing the tiller blade.
In order to achieve this purpose, a crushing rake blade is fixed to a rake shaft arranged parallel to the tiller claw shaft, and this rake shaft is supported by the left and right frames that make up the rotary tiller, and it is made rotatable. The rake shaft is further characterized in that the rake shaft can be rotated and fixed appropriately at a selected position.

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the structure of the present invention shown in the accompanying drawings will be described below. First, in FIG. 1, reference numeral 1 indicates a rotary tiller, and this rotary tiller 1 has a plurality of tilling claws 12 arranged equally in the circumferential direction on a claw seat provided on a rotary claw shaft 11. The pawl shaft 11 is supplied with power from a tractor and is forcibly rotated from a transmission 13 via a chino, and the direction of rotation is such that the tilling pawl is in an up-cut type. Both ends of the rotary claw shaft 11 are connected to the rotary tiller 1.
It is axially supported by frames 14 on both sides constituting the transmission case and a chain which is a transmission case.

The rotary claw shaft 1 in this rotary tiller 1
A rake shaft 15 is arranged behind the frame 14 and parallel to this axis, and the end of this rake shaft 15 is connected to the frame 14.
One end of the arm 16 is fixed to at least one end of the rake shaft 15. This arm 1
A bottle hole 16a is drilled in the tip of the frame 14, and a plurality of screw holes 17 that can overlap with the bottle hole 16a are bored in the frame 14, and the arrangement thereof is similar to that of the rake shaft 15.
They are spaced at equal pitches along the circumference with .

Further, a crank-shaped handle 18 is fixed to the end of the rake shaft 15, and the rake shaft 15 can be rotated by an appropriate angle by rotating the handle 18. One end of the rake blade 19 is fixed, and each crushing rake blade 19 extends downward to form a comb-teeth shape, maintaining an appropriate rotational range of the rotary tiller claw group.

Next, an example of use of the rotary tiller according to the present invention will be described. First, the gap R between the 0-tari tilling claws and the crushing rake claws is selected depending on the soil quality of the field. Since soil is less likely to become clogged, fil li R1 is set relatively small (Fig. 3 (a)).

In addition, if the water content is high or if the soil is clayey, the tilled soil will often clog the gap R, so II If R1 should be set large (see Figure 3).
To))).

These operations are performed by turning the rake claw shaft 15 by an appropriate angle using the handle 18, and the rake claw shaft 15 is in the locked state, that is, the bolt is inserted into the screw hole 1 in the bottle hole 16a of the arm 16.
If the screws are screwed in toward the direction 7, once the fixation is released and the gap between the rake claw and the rotary tiller claw is determined, insert an appropriate one of the screw holes 17 into the bottle hole 16a of the arm 16.
Align and fix with bolts to determine the gap R.

Furthermore, when performing mud removal work or replacement work of the rotary tilling claw, the gap R is made the largest so that the gap Rn is large enough to fit the arm (FIG. 3 (11)).

As is clear from the above description, according to the rotary cultivator of the present invention, the crushing rake blade is fixedly disposed on the rotatable rake blade shaft parallel to the rotary tilling claw group, and the tilling claw group and the crushing rake blade Since the gap between the blades is configured so that it can be seen at a glance according to the work, it is possible to prevent clogging with tilled soil, and it is also convenient for maintenance of the tiller claws.

[Brief explanation of drawings]

The attached drawings show an embodiment of the rotary tiller according to the present invention, and FIG. 1 is a side view of the same, FIG. 2 is a slope view of the same part, and FIG.
The figure is an explanatory view showing the state of adjustment of the rake blade. 1... Rotary tiller, 11... Rotary claw shaft, 1
2... Cultivating claw, 13... Transmission, 14
... Frame, 15... Rake shaft, 16... Arm, 16a... Bottle hole, 17... Screw hole, 18...
- Handle, 19... crushing rake blade. Patent Applicant Kobashi Kogyo Co., Ltd. Agent Patent Attorney Nobuuki Komaki

Claims (1)

[Claims] (1) In a rotary tiller constructed by attaching a number of crushing rake blades to a rake shaft arranged parallel to the rotary claw shaft, the crushing rake blades are installed between frames on both sides so as to be rotatable. a rake shaft; an arm attached to at least one end of the rake shaft;
An O-tari cultivator characterized in that the arm is provided with a fixture that can be attached to and detached from the frame.