JPH0220204A - Rotary tiller - Google Patents

Abstract

PURPOSE:To fill up grooves formed on the top ridge surface and prevent soil from scattering on the side of untilled land by constructing a lateral cover positioned behind a transmission case so as to enable movement and regulation in the left and right transverse directions. CONSTITUTION:When the left side of a chain case 6 is untilled land and the right side thereof is plowed in the form in contact with the untilled land, the second lateral cover 14 is brought near the inside in the transverse direction so as to prevent soil from scattering on the side of the untilled land. When soil is plowed by tillage tines 8..., most of the plowed and thrown soil is scattered back and thrown to the side of a ridger 38 linked to a hitch 36 to form a ridge. When the machine body is reversed, the chain case 6 is made to travel on the top surface of the ridge formed in the preceding stroke. In this case, an operating lever 25 is pulled to protrude the second lateral cover 14 to a position almost coincident with the outside part of the case 6. In forward movement, grooves formed in the advance are filled up by the chain case 6 in slide contact with the ground surface.

Description

[Detailed Description of the Invention] [Industrial Application Field] This invention provides a side tiller in which a tilling shaft is supported by a transmission case and a plate-shaped support frame provided at an appropriate distance from the transmission case. This invention relates to a drive type rotary tiller.

[Prior Art] Conventionally, in this type of side drive type rotary tilling device, the tilling shaft is supported by a transmission case and a plate-shaped support frame, and a side cover is provided inside the transmission case and the support frame. The structure was designed to prevent tilled soil from spilling out laterally.

[Problems to be Solved by the Invention] However, in the case of such a conventional device, various problems have occurred during the ridge work. For example, when a ridge forming tool is attached to the rear central part of a rotary tillage device and a ridge is formed in the process of one round trip, if the transmission case is located on the cultivated land side, the lower part of the transmission case will pass over the top surface of the ridge. As a result, a groove is created there, and rainwater, etc. tends to accumulate in this groove.To avoid this, workers must level the area with a spade after completing the ridge work. did not become.

In addition, in order to fill in the grooves created in the path of the transmission case, the tilled soil released by the tiller claws is actively guided to the path of the transmission case at the rear of the transmission case. When performing adjacent tillage work on uncultivated land, the soil will fly to the uncultivated side, making the boundary between cultivated land and uncultivated land unclear, making it difficult to perform adjacent tillage work while ignoring the boundary. The drawback was that it was extremely difficult to carry out.

[Means for Solving the Problems] The present invention is proposed to solve the above-mentioned drawbacks, and for this purpose, the following technical measures have been taken. That is, both ends of the tilling shaft 5 are rotatably supported by the transmission case 6 and the supporting frame 7, and the upper part of the tilling part is supported by the main cover 9, the rear part by the rear cover 10, and both left and right sides by side covers. ]−
1 and 11, the side cover 11 located at the rear of the transmission case 6 is configured to be movable and adjustable in the left and right directions. shall be.

[Operations and Effects of the Invention] When a part of the transmission case 6 is to be formed during the reciprocating process and the transmission case 6 is on the cultivated land side, the side cover 11 located at the rear of the transmission case 6 is pushed out laterally to the outside. .

If the ridge work is continued without moving the machine forward in this state, some of the soil thrown backward by the tilling claws 8 will hit the inner surface of the side cover 11 at the rear of the transmission case 6, and the lower part of the transmission case 6. It fills in the gap created by running on two sides.

On the other hand, when the transmission case 6 travels on the uncultivated land side, the side cover 11 is moved to the inside of the tilling claw 8 side. In this state, even if Jurikisho 1 is blown outward in four directions, it will be prevented by the side cover, so it will jump over the transmission case 6 and scatter toward the uncultivated land, which will separate the uncultivated and cultivated land. The boundaries are not made unclear and adjacent plowing work can be facilitated.

[Example] The present invention will be described in detail below with reference to the drawings.

First, to explain the configuration, 1 is connected to the rear part of the tractor via an appropriate link mechanism so that it can be raised and lowered.
1 - A live type rotary tiller, with an input shaft 2
The gear case 3 that carries the shaft, the connect pipe 4 that houses the horizontal transmission main shaft (not shown), the chain case 6 that supports both ends of the tilling shaft 5, and the Sai 1-plays 1 to 7, A plurality of tilling claws 8 installed on the shaft 5.
・A main cover 9 that covers the upper part of the tilling section, a rear cover 10 that is rotatably attached to the rear end of the main cover 9 and covers the rear of the tilling section, and a side section that covers the lateral sides of the tilling section. Hippo 11.1
Consists of 1st class. The side cover IJ on the Cheno case 6 side is
The side cover 1 at the rear of the chain case 6 is cut out diagonally so that its rear end is closer to the rear as it reaches upwards.
1, a first side cover 12 bent in a dogleg shape is fixed with bolts 13.13. The first side cover 12 has a front and center area that is large enough to prevent soil from flying out from the side when the rear cover 10 swings back and forth.

That is, the rear cover 10 swings while always abutting against the inner surface of the first side cover 12. A second side cover 11 and a second side cover 12 are provided on the outside of the side cover 11 and first side cover 12.
A side cover J-4 is provided so as to be movable laterally. To explain the structure in more detail, two pins 17.17 are attached to the rear end of the side cover 1-〇 in parallel with each other with the pins 17.17 facing outward. Pins 7 and 17 are inserted into collars 8 and 18 that are integral with the second side cover 14 so that the second side cover 14 can slide freely. Further, a washer 20.20 is attached to the outer end of the pin 17.17, and a spring 20.20 is attached between the washer 2o, 20 and the second side cover 14.
1.2]- is interposed so as to always press and bias the second side cover 14 inward in the lateral direction. Reference numeral 22 denotes an upper cover located outside the first side cover 12 and fixed integrally therewith. The second side cover 14 moves laterally below the upper cover 22. Reference numeral 25 denotes an operating rod for laterally moving the second side cover 14, the middle part of which is pivotally connected to the back of the chain case 6 with a pin 26, and a wire 28 with a spring 27 attached to the upper part of the operating rod 25. is attached, and the front end of the wire 28 is connected to a hand control lever in the cockpit. 3], 3] is the second side cover 1
Two metal fittings 33 are pins fixed to the outer surface of 4, and both ends thereof are supported by metal fittings 31 and 31. In addition, code 3 in the figure
4 is square 1~. 35 is auxiliary square 1~. 36 is a pitch formed of a pipe, and 37 is an auxiliary flat plate provided on both sides of the lower end of the rear cover 10, which is configured to be rotatable and fixed around an axis in the front and rear direction. 38 is a ridge erector.

Next, the operation of the upper side will be explained.

On the upper side, this rotary plowing part @1 to the rafter 1
The operation will be explained in the case where the ridge erector 38 is connected to the ridge erector 38 and the machine is moved forward while driving each rotating part to perform the ridge erecting work, and where a part is made in a reciprocating stroke. First, when the left side of the chain case 6 is uncultivated land and the right side of the chain case 6 is being tilled, the second side cover 14 is moved laterally to prevent soil from flying to the left uncultivated land side. Move it inward.

That is, the second side cover 14 is moved inward until it touches the first side cover 12. When the tilling claws 8 plow the soil in this state, most of the plowed soil is blown backwards and thrown toward the ridge erector 38 connected to the pitch 36, forming ridges. .

In this case, the side covers 11.12.1
4, so soil will not scatter laterally.

Then, when it reaches the end of the ridge and the machine is turned over, the chain case 6 will run on the upper surface of the ridge formed in the previous step, but in this case it will resist the elastic force of the springs 21 and 21. While doing so, pull the operating rod 25 to push the second side cover 14 outward to a position that substantially coincides with the outer surface of the chain case 6. When the machine is moved forward again in this state, most of the soil tilled and released by the tilling claws 8- is sent to the rear side of the ridge maker 38, but some of the soil is transferred to the second side cover on the side. It is also thrown to the 14 side and fills the groove created when the chain case 6 slides on the ground surface and advances. Note that during this work, if the leveling plate 37 is fixed so that it is tilted outward and runs on the ground surface, the passage trace of the chain case 6 can be pressed cleanly and the ridge top surface can be flattened. Also, rear cover 1
This device is also effective even if the 0 is divided into upper and lower halves and pivotally connected to each other for free rotation.In that case, by increasing the size of the first side cover 12 somewhat, ,
It can prevent soil from flying out.

[Brief explanation of the drawing]

The figures show an embodiment of the present invention, in which Fig. 1 is an overall side view, Fig. 2 is a perspective view, and Fig. 3 is a side view of main parts with some parts omitted.
FIG. 4 is a partially cutaway rear view. Description of symbols Rotary tilling device Tilling shaft transmission case (chain case) Support frame (side plate) Rear cover Side cover First side cover Second side cover

Claims (1)

[Claims] Both ends of the tilling shaft 5 are rotatably supported by a transmission case 6 and a support frame 7, and the upper part of the tilling part is supported by a main cover 9, the rear part is supported by a rear cover 10, the left and right sides are supported by side covers 11, 1
1, wherein a side cover 11 located at the rear of the transmission case 6 is configured to be movable and adjustable in the left and right directions.