JPH0545122Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a rotary tiller in which a rear cover is connected to the rear end of a rotary cover that covers the upper part of the tiller claw so as to be swingable back and forth.

[Prior Art] As the above-mentioned tillage device in the past, for example,
As shown in the drawings in Japanese Utility Model Application Publication No. 59-196008, the rear cover is connected to the rear end of the rotary cover and hangs down, and the rear cover is generally made of a rubber plate. It was hot.

[Problems to be solved by the invention] The rotary tillage device is generally connected to the rear of a traveling machine and performs tilling work in a down-cut type while moving the machine forward, or performs ridge-raising in an up-cut type while moving the machine in reverse. The structure is designed to carry out earth lifting work. Therefore, in the conventional structure described above, during the tilling work, the soil scraped backward by the tiller claws hits the rear cover and is deenergized, and the soil leveling action can be performed efficiently. During work, the soil raked up by the tilling claws is thrown upwards with great force, which may impede transport at the connecting corner between the rear cover and the rotary cover.
Problems such as soil adhesion and accumulation occurred in that area.

The object of the present invention is to smoothly guide the scooped up soil during such a top cut type soil lifting operation.

[Means for Solving the Problems] A feature of the present invention is that in the above-mentioned rotary cultivating device, on the inner surface side of the connecting portion between the rotary cover and the rear cover, a locking portion is provided between the two covers in the middle. A guide plate made of an elastic resin material is detachably attached thereto, and its functions and effects are as follows.

[Function] During down-cut type plowing work, the guide plate is removed, the scraped soil is deactivated with the rear cover as in the past, and the soil is leveled, and when up-cut type soil lifting work is performed, the guide plate is removed. An inclined guide surface is formed at a connecting corner portion between the rear cover and the rotary cover by being installed between the respective locking portions.

Moreover, since the guide plate is made of elastic resin material,
The weight of the rear cover causes it to bend upward in an arc, which improves soil guiding efficiency, and also vibrates when soil collides with it, preventing soil from adhering to it.

[Effects of the invention] Therefore, during soil lifting work using the Atsupakatsu type, an arc-shaped guide surface is formed at the connecting part between the rotary case and the rear cover, and soil adhesion can be prevented, so that the amount of soil being raked is extremely small. Now it can be released smoothly.

[Example] Fig. 4 shows an agricultural management machine equipped with a rotary tiller 1 according to the present invention. This management machine is
An engine 4 is mounted on the front part of the machine body equipped with wheels 3 at the bottom via a transmission case 2, and a rotary tilling device 1 is installed at the rear part of the machine body, and a control handle 5 extends rearward from the top of the machine body. It is configured.

The rotary tilling device 1 has a front end of a rotary frame 6 connected to the rear part of the machine body, a tail wheel 7 which can be freely adjusted up and down, connected to the rear part of the frame 6, and
A tilling claw 9 is rotatably supported at the lower end of a rotary case 8 attached to the rotary frame 6, and the upper part of the tilling claw 9 is covered with a pair of left and right rotary covers 10, 10.

Each of the rotary covers 10, 10 is pivotally connected to the rotary frame 6 by a hinge so as to be swingable about the front and back axis.

As shown in FIGS. 1 to 3, a rubber rear cover 11 is bolted to the rear ends of the rotary covers 10 and 10 using a holding fitting 12. It is configured to hang downward. Further, the rear cover 11 has a cutout recess 13 formed in its center so that it can move in conjunction with the vertical swinging of the rotary covers 10, 10, and its elasticity allows it to swing back and forth in response to an external force.

Then, on the inner surface side of the connecting portion between the rotary cover 10 and the rear cover 11, both the covers 10,
A guide plate 15 made of an elastic resin material is removably attached to each of the locking fittings 14, 14, which are fixedly attached to a midway portion of the inner surface of the guide plate 11.

Since the guide plate 15 is made of an elastic resin material, it is pushed upward in an arc shape by the weight of the rear cover 11, so that the raked soil is smoothly guided during upper cut type soil lifting work. Further, since the rear cover 11 made of rubber is also lifted upward by the guide plate 15, the tilling claws 9
It also has the effect of preventing people from getting bitten.

Note that although reference numerals are written in the claims section of the utility model registration for convenience of comparison with the drawings, the present invention is not limited to the structure of the attached drawings by such entry.

[Brief explanation of drawings]

The drawings show an embodiment of the rotary tillage device according to the present invention, in which Fig. 1 is a longitudinal side view, Fig. 2 is a longitudinal side view of the main part, Fig. 3 is a rear view of the main part, and Fig. 4 is a diagram showing agricultural management. FIG. 2 is an overall side view of the machine. 9... Cultivating claw, 10... Rotary cover, 11
... Rear cover, 14, 14 ... Locking metal fitting, 15 ...
...Information plate.

Claims (1)

[Scope of utility model registration request] This is a rotary tilling device in which a rear cover 11 is connected to the rear end of a rotary cover 10 that covers the upper part of the tilling claws 9 so as to be able to swing back and forth, and the inner surface of the connection part of the rotary cover 10 with the rear cover 11. A rotary tiller in which a guide plate 15 made of an elastic resin material is removably attached between locking portions 14 and 14 provided in the middle of both covers 10 and 11.