JPS6018001Y2 - Land leveling device for agricultural machinery - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to a land leveling device for agricultural machinery.

Conventionally, a leveling plate was attached to the rear of this type of agricultural machine to level the ground surface, and extended leveling plates were attached to both ends of this leveling plate, and the working width of the work body was In addition to leveling and grading the ground surface over a wider area, efforts are being made to eliminate joints in the work process.

However, the above-mentioned extension leveling plate should be placed in a position where it does not protrude outward from the leveling plate when working in the field, for example, when there are obstacles such as ridges or telephone poles, or when driving on the road. It is necessary to move the goldmine and make it smaller.

Therefore, in such cases, it is necessary to develop a means that allows the extension leveling plate to be easily rotated in the direction of extension of the leveling plate or inwardly while riding on a tractor that pulls agricultural machinery. desired.

Therefore, this idea was created in view of these points.
The inner ends of an extended leveling plate are connected to both ends of the leveling plate so as to be vertically rotatable, and one end of an operating rope for remote control is locked to the outer end of this extended leveling plate. The object of the present invention is to provide a ground leveling device for an agricultural machine in which an extension leveling plate can be remotely folded and rotated and returned to the extension direction by being pulled forward and backward by, for example, the seat of a tractor. be.

In the present invention, a work body 5 is rotatably suspended horizontally on a machine frame 1, and the upper part of the work body 5 is covered with a cover 9, and a first flat plate 10 is attached to the rear end of the cover 9. A second leveling plate 10 having connecting pieces 14 protruding from both ends thereof is attached so as to be rotatable in the vertical direction, and connecting pieces 14 are attached to both ends of the second leveling plate 12 on inner ends thereof. Engagement piece 1 that engages with
7 are provided in a row on both sides, and the engaging pieces 17 of the extension flat plates 16 on both sides and the above-mentioned second
The extension leveling plate 16 is connected to the second leveling plate 12 so as to be rotatable in the vertical direction by inserting the central shaft 15 through the connecting pieces 14 at both ends of the second leveling plate 12. A spring 21 that always holds the extended flat plate 16 on the extension of the second flat plate 12 is installed between both ends of the flat plate 16 and the inner ends of the flat extended flat plate 16 on both sides. The locking piece 22 at the outer end of the flat plate 16 causes the extended flat plate 16 to be folded and rotated about the central axis 15 on the second flat plate 12 by pulling the locking piece 22 back and forth. One end of the operating rope 23 for remote control to be rotated back in the extension direction of
The locking piece 2 when folded onto the second flat plate 12
The present invention is characterized in that a guide 24 is provided protrudingly located on the outside of the operating rope 23 and guides the forward and backward movement of the operating rope 23.

Next, one embodiment of the present invention will be described with reference to the accompanying drawings.

In the figure, reference numeral 1 denotes a machine frame, and a transmission 2 having an input shaft interlocked with a tractor is fixed to the center of the machine frame 1, and a chain case 3 and a bracket 4 are attached to both ends of the machine frame 1. Upper parts thereof are provided facing each other, and both ends of a working shaft 6 of a working body 5 which manages a predetermined work are rotatably mounted between the chain case 3 and the lower end of the bracket 4.

The working shaft 6 is rotated in conjunction with the mission 2 via its output shaft 7 and a chain 8 in the chain case 3 which is connected thereto.

Next, a cover unit 9 that is located between the chain case 3 and the bracket 4 of the machine frame 1 and covers the upper part of the work body 5 is fixed, and a first uniform cover 9 is attached to the rear end of the cover unit 9. A flat plate 10 is connected via a hinge 11 so as to be rotatable in the vertical direction, and a second flat plate 12 is connected to the lower end of the first flat plate 10.
are connected via a hinge 13 so as to be rotatable in the vertical direction.

This second leveling plate 12 is formed to have approximately the same length as the first leveling plate 10, and has a pair of connecting pieces 14 at each end thereof.
are integrally erected facing each other in the front-rear direction, and a central shaft 1 serving as a rotation center is located at the upper end between the connecting pieces 14 at both ends.
5 is suspended horizontally.

Reference numeral 16 denotes extended leveling plates on both sides connected to both ends of the second leveling plate 12. The extension leveling plates 16 on both sides are formed with the same cross-sectional shape as the second leveling plate 12, and each has an inner side. Engagement pieces 17 are erected at the ends, and the engagement pieces 1 on both sides
Attachment pieces 18 are bent and formed opposite to each other in the front-rear direction at the upper end of 7, and these opposing attachment pieces 18 on both sides
The extended leveling plates 16 on both sides are rotatably supported on both ends of the second leveling plate 12 with the central axis 15 as the center of rotation.
It is designed to be folded and rotated inwardly and rotated back in the extension direction.

Further, a protruding piece 19 is integrally formed on the inner end of the extension flat plate 16, and this protruding piece 19 and a protruding piece 20 integrally protruded from the outer end of the second flat plate 12. A coil spring 21 is stretched in between at a position lower than the height of the central shaft 15.

By means of this lower coil spring 21 and the upper central axis 15, the extended flat plate 16 is normally connected to the second flat plate 12 at both ends of the second flat plate 12.
It is designed to extend and be connected in the direction of extension.

Further, engagement pieces 22 are provided protrudingly from the outer ends of the extension flat plates 16 on both sides disposed at both ends, and the engagement pieces 22
One end portion of a pair of operation a-pulls 23 for remote control is respectively attached to the two.

Further, on both sides of the machine frame 1, guides 24 are located inside the central axis 15 and outside the retaining pieces 22 when the extended flat plate 16 is folded onto the second flat plate 12. are integrally protruded.

The pair of operating ropes 23 are inserted through guides 24 on both sides provided on the machine frame 1 and pulled out, and the hooks at the other ends are guided to a seat of a tractor (not shown).

Further, a connecting frame 25 is attached to the machine frame 1 to be connected to a tractor.

In the device configured in this way, the connecting frame 25 is connected to the tractor, the input shaft of the mission 2 is connected to the output shaft of the tractor, the tractor is pulled by the tractor, and the mission 2 is driven by the power input from the tractor. drive

As a result, the output shaft 7 and chain 8 of mission 2
The work shaft 6 is interlocked and rotated through the work body 5, and predetermined agricultural work such as soil crushing is performed by the operation of the work body 5. The ground surface is leveled and graded by the second leveling plate 12 and the extension leveling plate 16 that are connected to the ground.

Next, when working in the field, if there are obstacles such as ridges or telephone poles, or if it is necessary to fold the extension leveling plate 16 while driving on the road, the operation guided by the seat section is performed. When the rope 23 is pulled through the guide 24,
The extension flat plate 16, which is fixed to one end of the operating rope 23, rotates around the central axis 15 and rotates around the coil spring 21.
When the coil spring 21 exceeds the reversal point, it is rotated in the direction of folding by the restoring force of the coil spring 21. Ru.

Therefore, when the coil spring 21 expands and contracts around the protrusion 20 that locks one end of the coil spring 21 and moves inward, the extension leveling plate 16 is moved to the second leveling plate 12 by the applied force.
Since the force is applied in the upward folding direction, when the operating rope 23 is pulled at a predetermined position with the operating rope 23 being pulled against the coil spring 21, the extension leveling plate 16 is It is held in an inclined state on the second leveling plate 14, but when the operating rope 23 is supplied according to the tension of the coil spring 21, it is folded and superimposed on the second leveling plate 12. .

In this case, the engagement piece 22 of the extension flat plate 16 is connected to the guide 24.
The second leveling plate 12 is located slightly inside the position a of
engaged on top.

Therefore, the extended leveling plate 16 does not protrude outward from the second leveling plate 12, and does not become a hindrance when working in the field or driving on the road.

Next, in order to return the folded extended leveling plate 16 onto the second leveling plate 12 in the direction in which the outer end of the second leveling plate 12 extends, the operating rope 23 is moved through the guide 24. When pulled, the extended flat plate 16 is pulled up against the coil spring 21 around the central axis 15, and at the position where the engagement piece 23 is closest to the guide 24, the extended flat plate 16 is It is tilted inward from the central axis 15 against the coil spring 21, and is the limit point for lifting by the operating rope 23. However, if the operating rope 23 is rapidly supplied and pulled at this point and moves forward and backward, the coil spring 21 is rapidly expanded and contracted, and the extended flat plate 16 is rotated back and forth around the central axis 15. When the coil spring 21 exceeds the reversal point due to the large amplitude reaction, the restoring force of the coil spring 21 The extended leveling plate 16 is rotated outward about the central axis 15 and is momentarily rotated back outward in the extension direction of the second leveling plate 12.

In this way, by operating the operating rope 23, the extended flat plate 16 is rotated about the central axis 15 via the coil spring 21, and is remotely folded and rotated with respect to the second flat plate 12. and is rotated back in the extension direction, making it easy to avoid obstacles when working or driving on the road.

According to the present invention, the extension flat plate 16 is connected to both ends of the second flat plate 12 connected to the first flat plate 10 via the central shaft 15 and the spring 21 so as to be rotatable in the vertical direction, An operation rope 23 for remote control is attached to the extension leveling plate 16 on both sides.
At the same time, the middle of this operating rope 23 is operated via guides 24 located inside the central axis 15 on both sides of the machine frame 1, so this operation can be performed as necessary. By pulling or supplying the rope 23, the extended leveling plates 16 on both sides rotate about the central axis 15 and fold inwardly or outwardly relative to the second leveling plate 12 with the assistance of the spring 21. Therefore, the operating rope 23 can be guided to the driver's seat of a tractor or the like, and the installation position of the extension leveling plate 16 can be easily changed and set remotely at the driver's seat.
The extension leveling plate 16 can quickly deal with obstacles such as telephone poles and ridges.

[Brief explanation of the drawing]

The figures show one embodiment of the present invention, in which Fig. 1 is a perspective view of an agricultural working machine, and Fig. 2 is a front view of the same ground leveling device. 1...Machine frame, 9...Cover, 10.
...First leveling plate, 12...Second leveling plate, 14...Connecting piece, 15...Center axis, 16... - Extension leveling plate, 17... Engagement piece, 21... Spring, 23... Operating rope, 24... Guide.

Claims (1)

[Claims for Utility Model Registration] A machine frame 1 having a cover unit 9 on which a work body 5 is rotatably horizontally mounted and covering the upper part of the work body 5; and the rear end of the cover unit 9 of the machine frame 1. A second leveling plate 12 is attached to the second leveling plate 12 so as to be rotatable in the vertical direction through the first leveling plate 10 and has connection pieces 14 protruding from both ends thereof; Extended leveling plates 16 on both sides whose inner ends are connected and each having engagement pieces 17 protruding from the inner ends to engage with the connecting pieces 14; and engagement pieces of the extension leveling plates 16 on both sides. 17 and the connecting pieces 14 at both ends of the second leveling plate 12 to connect the extension leveling plate 16 to the second leveling plate 12 so as to be rotatable in the vertical direction; The extended leveling plate 1 is stretched between both ends of the second leveling plate 12 and the inner ends of the extension leveling plates 16 on both sides thereof.
6 on the extension of the second flat plate 12 at all times, and locking pieces 22 at the outer ends of the extended flat plate 16 on both sides.
A remote control device that is locked to and rotates the extended leveling plate 16 about the central axis 15 by folding and rotating it on the second leveling plate 12 and returning it in the direction of extension of the second leveling plate 12 by pulling the extension back and forth. and an operating rope 23 for use on both sides of the machine frame 1, inside the central axis 15 and outside the locking piece 22 when the extended flat plate 16 is folded onto the second flat plate 12. A ground leveling device for an agricultural machine, comprising: a guide 24 that is positioned and protrudes to guide the forward and backward movement of the operating rope 23.