JPS592Y2 - rotary tiller - Google Patents

Description

[Detailed description of the invention] The present invention is configured so that both sides and the rear of the tilling rotary are covered with side covers and a rear cover, and
The present invention relates to a rotary tilling device in which the rear cover is configured to swing back and forth using the upper end as a fulcrum in a state where the rear cover is engaged with the inner side of both side covers.

As described above, if the rear cover is configured to be able to swing back and forth between both side covers, the rear cover, which is wider than the opposing distance between the side covers, can be placed against the rear end of the side covers to cover the tilling rotary. Compared to this structure, even when the rear cover is swung, there is no risk that the side cover and the rear cover will separate in the front-rear direction and a gap will be created between them that allows tilled soil to scatter. It is possible to level the plowed surface and crush the soil while preventing mud from scattering.

Further, when a large clod of soil is plowed inside the cover, the clod can be discharged rearward by swinging the rear cover rearward.

In order to configure the rear cover to be able to swing back and forth without scattering dirt rearward, it is of course essential that there be no large gap between the inner surface of the side cover and the lateral edge of the rear cover. This is a requirement, and the rotary cover is usually configured with a small gap necessary for the rear cover to swing, and in reality, this configuration does not have sufficient functionality to prevent soil from scattering. However, the production was still unsatisfactory.

The present invention further improves the rotary tilling device with such a configuration, and greatly improves its manufacturing and assembly errors, as well as completely regulating the rocking position of the rear cover, which can swing back and forth, relative to the tilling rotary. The purpose is to provide a rotary tiller that solves problems of different dimensions all at once.

Embodiments of the present invention will be described in detail below with reference to illustrative drawings.

The figure shows a riding type tiller in which a rotary tiller 2 is connected to the rear of a tractor 1.

The rotary tilling device has a plurality of tilling claws 5 on a rotary tilling shaft 4 supported at the lower part of a transmission case 3 in an intermediate portion.
A tilling rotary is constructed to perform tilling operations as the rotary moves forward, and the upper part, both sides and rear part of the rotary are covered with a rotary cover 6.
, a pair of left and right side covers 7.7 and a rear cover 8.

The rear cover 8 is fitted into the inner sides of the side covers 7.7, and its upper edge is pivotally connected to the rear edge of the rotary cover 6 so as to be rotatable around a horizontal axis. As a result, the inner sides of both side covers 7.7 are configured to be able to swing back and forth while being engaged.

Note that a rubber hanging cover 9 is attached to the lower edge of the rear cover 8.
This prevents mud that bypasses the lower edge of the rear cover 8 from hitting the worker.

Also, on the inner surface of both side covers 7.7 corresponding to the area between the rotary and the rear cover 8, a side cover 7.7 is provided.
An upright piece 10.10 (see FIG. 4) extending inwardly over substantially the entire vertical length of the holder is bolted to the holder.

Furthermore, since the upright piece 10 is formed to follow the inner surface shape of the rear cover 8 made of a rigid member in a state close to the tilling rotary, it is possible to position the limit at which the rear cover 8 can move toward the rotary side. Since the cover 8 can be received and supported in the upper F direction for a long time, it is easy to ensure the action of the switch I and the collar.

In summary, the rotary tilling device according to the present invention has a snow-sludge structure in which the rear cover is made of a rigid member, and on the inner surfaces of the side covers corresponding to between the tilling rotary and the rear cover, The side cover is characterized by having an upright piece extending over substantially the entire vertical length of the side cover and projecting inward.

In other words, in contrast to general conventional technology that only aims to prevent the formation of gaps between the side cover and the rear cover, the present invention is unique in that it actively accepts the formation of gaps. As a result, although it is an extremely simple structural improvement of erecting upright pieces, it has the effect of greatly alleviating not only the problem of scattering of tilled soil but also tolerances in manufacturing and assembly. is what was obtained.

Furthermore, in addition to this effect, in the present invention, the upright piece catches and prevents the rear cover from moving toward the rotary side and coming into contact with it, so special consideration must be taken to regulate the swinging position. There is no.

[Brief explanation of the drawing]

The drawings illustrate embodiments of the rotary tiller according to the present invention; FIG. 1 is a side view of the riding type tiller, FIG. 2 is a side view of the rotary tiller, FIG. 3 is a rear view of the same, and FIG. 4 is a side view of the rotary tiller. The figure is a perspective view of the upright piece. 7... Side cover, 8... Rear cover, 10... Standing piece.

Claims (1)

[Scope of utility model registration request] 7. Cover both sides and rear of the tillage rotary.
7 and a rear cover 8, and the rear cover 8 is configured to be able to swing back and forth using its upper end as a fulcrum while being engaged with the inner side of both side covers 7.7. In the rotary tilling device, the rear cover 8 is formed from a rigid member, and the upper and lower sides of the side cover 7.7 are provided on the inner surfaces of the both side covers 7.7 corresponding to between the tilling rotary and the rear cover 8. Almost the entire length,
A rotary tiller characterized in that the upright piece 10.10 is provided to protrude inward.