JPH034701A - Apron device for rotary tiller - Google Patents

Abstract

PURPOSE:To readily switch use and non-use of extension apron by pivoting extension apron on upper end of notch provided at end part of working breadth direction of apron and locking the extension apron at operating position and non-operating position. CONSTITUTION:An upper end part of extension apron 2 is pivoted to notch 1A of an apron 1 with a hinge 3. A lock pin 43 is provided at inner end edge of the extension apron 2 in freely protruding and a pin receiver 44 receiving the lock pin is buried in end face of the notch 1A of the apron 1, then a pin stopper 52 is provided corresponding to the apron 2 of upwardly jumped up state.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an apron device for a rotary tiller, and more particularly to an apron device configured by attaching an extension apron to an apron main body.

[Conventional technology]

A rotary tiller is equipped with an apron to further crush the tilled soil that has been tilled by the rotary tiller, and the thrown tilled soil can be crushed by colliding with the apron.

This apron device has a width dimension that corresponds to the working width of the rotary, and is configured so that when an extension rotary is attached to the rotary, an extension apron can also be attached to the apron to compensate for the working width. ing.

To this end, in a well-known apron device, the apron section is attached to the front end of the apron body to increase the plowing width. In this type, the apron body and the apron portion are separate members, and the apron is attached only when necessary and removed when unnecessary.

[Problem to be solved by the invention]

According to the apron device configured as described above, when the extension apron is not needed, it is necessary to carefully manage the location of the extension apron in order to remove that part from the apron body, and if this management is neglected, There was a problem where I lost my extension apron, causing me to panic at a critical moment.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide an apron device configured such that an extension apron is always connected to an apron main body, and the extension apron can be easily used when necessary.

[Means to solve the problem]

To achieve the above-mentioned objects, the present invention provides a tilling rotary comprising at least a rotary, an apron body attached to the rotary cover, and an extension apron, which includes an apron attached to the rotary cover, and a sand plowing rotary. At least the apron body has a notch at the end in the working width direction that corresponds to the extension apron, and in this notch, the extension apron has a lock pin whose upper end is pivoted to the apron body and which can protrude from the inner edge, and a A lock part is formed by a pin receiver provided on the main body and accommodates the lock pin, and a fixing part is provided to fix the extension apron between the extension apron and the apron main body when the extension apron is rotated upward. It is characterized by the fact that

[For production]

When the apron device of the present invention is not in use, the extension apron is flipped upwards using a pivot such as a hinge, and this state is fixed to perform plowing work using only the apron body.When necessary, the extension apron is lifted up from the apron body. Use it as an extension to work with extended plowing width.

〔Example〕

Embodiments of the present invention will be described below with reference to the accompanying drawings. In these drawings, reference numeral 1 indicates the apron main body, which has a width including the extended width.Only one side is shown in the drawings, and the lower edges of both ends of the apron main body have a width including the extended width. A corresponding square cutout IA is provided.

The upper edge of the extension apron 2 is attached to the upper edge IB of this notch IA by a hinge 3. This extension apron 2 has the cutout IA
By being located at , the notch is filled.

Two thick parts are formed at the lower end edge of the extension apron, and the opening IA of the two thick parts is formed.
A solid lock portion 4 formed by a lock pin is provided on the surface opposite to the single surface. In this fixed part 4, the guide pipe 41
A lock pin 43 is pushed in against a push spring 42 housed in the lock pin 43, and a stopper 43A provided on the lock pin 43 passes through a slit 41A provided in the guide pipe 41 through a slit 41A provided in the two thick parts. It protrudes to the surface through 2B.

And an apron body 1 that can face the guide pipe.
A pin receiver 44 capable of accommodating the lock pin 43 is also embedded in the end face of the notch IA.

Furthermore, a pin holder piece 51 is fixed on the surface of the two thick parts, and a pin hole 51A is provided in the center of the pin holder piece 51. A pin receiver piece 52 having a pin hole 52a is provided at a symmetrical position on the surface of the apron body 1. With both pin holders overlapped, the fixing pin 53 is inserted into the pin hole 51A.

52A can be volatilized to form the fixed part 5.

Next, plowing work using the apron device of the present invention will be explained. First, for work that does not require expanding the working width, the extension apron 2 is flipped upward and fixed by the fixing part 5, so that the working width becomes the width of only the apron body.

In addition, when extending the tilling width, the extension apron 2 is lowered along the cutting edge 1^ of the apron body, and the lock pin 43 is depressed against the pin receiver 44 of the apron body 1 by the elasticity of the push pin 43. let them in. In this state, the working width is expanded by the width of the extension apron 2.

To release the extension work state, push the stopper 43A of the lock pin 43 against the spring 42 and push it into the slits 2^, 4.
1A to remove the lock pin 43 from the pin receiver 44, and then remove the extension apron 2.
is rotated around the hinge 3, and the fixed part 5 of the apron body 1 fixes the sprung-up state.
[Other Embodiments] Although the fixing part 5 described above is provided with the pin receiver piece 51 on the extension apron 2, the lock pin 43 is used in place of the fixing pin 53, and the fixing part 5 is provided on the surface of the apron body 1. The pin receiver piece 52 may be provided at a position that can accommodate the extension apron in a flipped up state. In this case, the pin receiver 4 of the apron body that constitutes the lock part 4
4 has a guide piece 45 that guides the lock pin 43.
will be established.

〔Effect of the invention〕

As is clear from the above description, according to the apron device for a rotary tiller according to the present invention, since the extension apron is attached to the notch provided in the apron body with a hinge, the extension apron can be used depending on the working width. Since the extension apron is configured so that it can be fixed to the apron body in a flipped up state when not in use, the extension apron is always connected to the apron body and can be used or discarded without fear of loss. Switching between uses is easy and the configuration is simple.

[Brief explanation of drawings]

Fig. 1 is a perspective view showing the apron device of the rotary tiller of the present invention, Fig. 2 is an enlarged sectional view taken along line ■-■ in Fig. 1,
FIG. 3 is a partial perspective view of the device in a flipped-up state, and FIG. 4 is a perspective view showing another embodiment. 1...Apron body, IA...notch, 2
... Extension apron, 3... Hinge, 4... Lock part, 41... Guide pipe,
42...Press spring, 43...Lock pin, 43
A... Stopper, 44... Pin receiver 5...
Fixed part 51.52...Pin holder is one piece, Fig.

Claims (1)

[Claims] (1) A tilling rotary that includes at least a rotary, an apron body attached to the rotary cover, and an extension apron, the apron is attached to the rotary cover, and at least the apron body has an extension at the end in the working width direction. The extension apron has a notch that corresponds to the apron, and the upper end of the extension apron is pivotally attached to the apron body, and a lock pin that can protrude from the inner edge and is provided on the apron body and accommodates this lock pin. An apron device characterized in that a lock part is constituted by a pin receiver, and a fixing part is provided to fix the extension apron between the extension apron and the apron body when the extension apron is rotated upward.