JPS5927691Y2 - Furrow device - Google Patents

Description

[Detailed description of the invention] This invention has a ridge making device that presses and moves the tilled soil from side to side in the center of the rear of the rotary tillage device, and creates ridges that sequentially form ridges for planting crops as the tillage progresses. Regarding vertical equipment.

The ridge erector is usually constructed using a cultivating soil plate formed in a V-shape in plan view, so that the tilled soil migrates beyond the upper edge of the cultivating soil plate to the back of the cultivating soil plate. Shishishi 1
This may result in poor finishing of the groove formed between a pair of adjacent ridges, or if a leveling plate for forming the groove is attached to the bottom edge of the soil plate, the surface of this leveling plate may deteriorate. A large amount of plowed soil was deposited on the ground, making the tiller heavy and creating resistance to the aircraft's movement.

In order to solve this problem, it is necessary to use a soil plate that has an extremely high height above the ground at the top edge 1, or to install a cover that covers the top of the soil plate and extends from the rear of the tillage device. However, in the former case, there is a disadvantage that the soil plate itself becomes too large, and in the latter case, when the soil plate is adjusted up and down, the top edge of the soil plate and the bottom surface of the cover are There is a drawback that unless the plates are substantially parallel, it is not possible to reliably prevent the tilled soil from entering the back of the soil plate.

The technical problem that this invention aims to solve is to use an integrated cover to cover the top of the soil plate of the ridge erector, which can be adjusted vertically, without making the soil plate of the ridge erector any larger than necessary. In order to prevent intrusion into the rear side, by adding an extremely simple structure that only partially changes the shape of the cover, it is possible to reliably suppress intrusion of tilled soil even if the ridge erector is adjusted up and down. It is to do so.

The technical means of this invention taken to solve the above problems are as follows:
The connecting rod is attached to the support frame that is fixed to the transmission case of the rotary tiller and extends rearward so that the position can be changed and fixed at will by sliding it up and down. In the ridge raising device, in which at least a portion of the cover corresponding to the upper part of the ridge erecting device, of a cover that is fixedly installed and provided over the rotary tiller and above the ridge erecting device, is configured to be vertically swingable. , a biasing mechanism is provided to bring a portion of the cover located at a position corresponding to the upper part of the ridge stander close to the upper end side of the soil plate of the ridge stander, and a portion of the cover corresponding to the upper side of the soil plate of the ridge stander is provided with a Along the upper edge shape of the soil plate, which is arranged in an approximately V shape, the front edge is approximately V in plan view.
The purpose is to form a downwardly opening recessed portion in the shape of a letter, and the effects obtained by taking this technical means are as follows.

In other words, by using a cover that covers the upper side of the soil plate, it is possible to avoid the tillage surface from going over the top edge of the soil plate and moving to the back without making the soil plate itself extremely large. However, especially in the present invention, a part of the cover covering the upper side of the soil plate is biased to be close to the upper edge of the soil plate, and a part of the cover is provided with a shape of V in plan view.
A state in which a downward opening recess with a front edge approximately V-shaped in plan view is formed along the upper edge shape of the letter-shaped soil plate, and this downward recess fits into the upper end of the soil plate. By adjusting the raising and lowering of the soil plate,
Even if the top edge of the soil plate is not parallel to the bottom surface of a portion of the cover, it is possible to reliably prevent the plowing soil from climbing over the soil plate and entering the back side of the soil plate. It is also effective for soil that increases the shape-retaining strength of a portion.

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

The figure shows a ridge making device in which a rotary tiller 2 and a ridge erecting device 3 are connected and equipped at the rear of a tractor 1.

The rotary tilling device 2 has a hitch 4 at the rear of the tractor.
A pair of left and right hydraulically driven lift arms T are provided at the rear of the tractor.

It is suspended and supported by T, and is constructed so that its height can be adjusted as desired by operating a lift arm 7.7.

The ridge erecting device 3 is configured to suppress and move the soil tilled by the rotary tiller 2 from side to side with a cultivating soil plate 9 configured in a V-shape in plan view, A connecting rod 11 extending from the soil plate 9 is penetratingly supported by a support frame 10 extending from the rotary tilling device 2 so as to be movable and fixed in the vertical direction.

The soil plate 9 is pivotally connected to the connecting rod 11 so as to be rotatable around the horizontal axis X, and the screw shaft 13 rotatably supported by the soil plate 9 and the connecting rod are connected to each other. 11 are screwed together, so that the attitude of the soil plate 9 with respect to the connecting rod 11 can be changed and adjusted as the screw shaft 13 is rotated in forward and reverse directions.

Further, both lateral sides of the n-tally tillage device 2 are covered with a pair of side covers 14.14, and the soil part of the rotary tillage device 2 and the upper part of the ridge erector 3 are covered with a first cover 15. and is covered with a second cover 16.

The first cover 15 is connected and supported by the 0-tally tilling device 2, and the second cover 16 is pivotally connected to the rear end of the first cover 150 so as to be able to swing up and down, and Although not illustrated, it is configured to be biased downward by a helical spring to maintain it in a state close to the upper end side of the soil plate 9.

Further, the second cover 16 has the soil plate 9, which is approximately V-shaped in plan view, in the vicinity of the central portion corresponding to the upper part of the ridge stand device 3.
A downwardly opening recess with a substantially V-shaped front edge is formed by press working so as to follow the shape of the upper end of 9.
This recess fits into the upper end portions of the soil plates 9, 9, and the strength of the cover 16 is reinforced by forming the recess.

Further, a hole 5 passing through the connecting rod 11 is formed in the center of the second cover 16.

(From Figures 4 to 6, go to A, 2, C, 2, Tree.

The ridge making device with the above configuration forms ridges while suppressing and moving the tilled land with the rotary tiller 2 from side to side with the ridge making device 3 as it progresses. The cultivated listings are covered by the first cover 15 and the second cover 16.
The soil is guided by the guide and is reliably moved to the front of the soil plate 9.

In addition, when changing the tilling depth by swinging the rotary tilling device 2 up and down, or when changing the height of ridge formation, etc., the height of the furrow stander 3 relative to the rotary tilling device 2 is changed. In addition, the rotation of the soil plate 9 relative to the connecting rod 11 is adjusted as necessary, but even with such adjustment, the second cover 16 remains close to the upper edge of the soil plate 9. will be properly maintained.

In addition, in carrying out the present invention, a cover 15 provided over the rotary tillage device 2 and above the ridge erecting device 3,
16 may be implemented in a form that integrally swings up and down.

Further, the cover 16 may be biased by using its own weight.

[Brief explanation of drawings]

The drawings show an embodiment of the ridge raising device according to the present invention, and FIG. 1 is a side view of the ridge raising device, FIG. 2 is a perspective view of the ridge raising device, and FIG. 3 is a rear view showing the operating state of the soil cultivator. , Fig. 4 is a plan view of the second cover, Fig. 5 is a side view of the same, Fig. 6 shows the opening of the arrow, herb, 212. , 7F *. Hehe, it is a sectional view along the Thoth line. 2... Rotary tillage device, 3... Furrow erector, 9... Cultivating soil plate, 10... Support frame, 11... Connecting rod , 15.16...Cover.

Claims (1)

[Scope of utility model registration request] The connecting rod 11 is attached to the support frame 10 which is fixedly fixed to the transmission case part of the rotary tiller 2 and extends rearward, so that the connecting rod 11 can be slid up and down to change its position. A cover 15° 160 on which the ridge erector 3 is fixedly installed and provided over the rotary tiller 2 and above the ridge erector 3; at least a cover 16 portion corresponding to the upper part of the ridge erector 3; In the ridge raising device configured to be able to freely swing up and down, a biasing mechanism is provided to bring the cover 16 portion located at a position corresponding to the upper part of the ridge raising device 3 close to the upper end side of the soil plate 9 of the ridge raising device 3, and this cover 16 parts of soil board 9
, 9 are arranged in a substantially V-shape in a plan view, and are provided with a downward opening that is substantially V-shaped in a plan view at the front edge along the upper edge shape of the soil plates 9, 9. A ridge-making device characterized in that the concave portion of the ridge is formed in a straight line.