JPH023701Y2 - - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to a digging device for deep-rooted crops.

As a means for digging deep-rooted crops such as burdock and yam, as shown in FIG. There is a known method in which the soil around the deep-rooted crop 2 is expanded and softened by making the soil around the deep-rooted crop 2 easier to dig by moving the soil while applying back and forth vibration.

However, this method involves shearing the part of the soil around the deep-rooted crop 2 through which the U-shaped plow 1 passes, using the vertical part of the plow 1 and the horizontal part of its lower end. However, at this time, the soil around the deep-rooted crop 2 that is surrounded by the part through which the U-shaped plow 1 passes becomes compressed, causing the deep-rooted crop 2 to grow. may make it difficult to extract from the field soil.

In addition, in order to effectively expand and soften the soil around the deep-rooted crops 2, the horizontal part provided at the lower end of the vertical part of the plow body 1 is moved forward as described in Japanese Patent Application Laid-Open No. 56-75013. If the plow body 1 is formed into a chisel shape that slopes downward and the front and back vibrations of the plow blade 1 lift up the soil on the upper surface side of the horizontal part that tilts forward, the pushing up of the soil by the horizontal part that tilts forward will be as follows.
It does not reach the upper layer of the soil in the field, and therefore, the lower layer of soil around the deep-rooted crop 2 is compacted, and the deep roots 21 of the deep-rooted crop 2 are instead compressed into the soil. , when removing the deep root part 2
The problem arises that 1 is cut off and remains in the soil.

In addition, it was used as a means of digging up root vegetables.
As stated in Publication No. 8676, an underground advancing frame body formed in a U-shape or V-shape so as to surround the plant to be excavated when viewed from the front, has a rod-shaped blade body that is long in the front and back when viewed from the side, and is directed forward. There is also known a method of rocking the underground advancing frame back and forth while being installed in a downwardly inclined position. However, with this method, the rod-shaped blade attached to the underground moving frame slides back and forth in the ground by swinging back and forth, and the plants to be excavated come into contact with it. Although it works to gradually lift the roots upward, it does not work to expand and soften the soil around the excavated plant, so it is only suitable for digging up short-rooted crops such as beets and ginseng. There is a problem with digging up long-rooted crops such as burdock and yam, as it damages the crops and makes them unusable.

The present invention was made in order to solve the above-mentioned problems that occur with conventional methods.
It effectively expands the soil from the lower layer around the deep roots of the crop to the upper layer of soil down to the ground surface, allowing deep-rooted crops to be dug up easily and quickly without damaging the crop. The purpose is to provide new means to

The present invention was completed based on the knowledge obtained through various studies and experiments for the above-mentioned purpose. That is, as shown in FIGS. 3 and 4, a chisel 30 is attached to the lower end of the plow body 3, which is vertically long to crush subsoil and cultivated soil.
is installed so that it faces forward in a tilted view and tilts downward, and on the inner surface of the plow body 3, which is the side that faces the root vegetables during work, and covers almost the entire area that is to be applied to the soil. , a plurality of protrusions 32 along the front-rear direction are attached in a state in which they are vertically spaced apart from each other in a posture that tilts downward toward the front in side view, and this plowfish 3 is attached to the first
As shown in the figure, the frame 4 connected to the body of the tractor T is supported so that it can vibrate back and forth and up and down. Dotted lines I, Ro, and H are drawn diagonally upward from the upper surface of each protrusion 32 on the inner side of the plowfish 3 and the lateral protrusion of the chisel 30 at the bottom end of the plowfish 3 in the soil near the roots of the plowfish. Vibration fracture lines occur, and the soil around the roots of deep-rooted crops rises to the ground surface, causing compaction around the deep roots on the lower half of the roots of deep-rooted crops. This was completed based on the result that the soil became soft from the lower layer to the upper layer, making it easier to dig up deep-rooted crops.

Therefore, in the present invention, as a means to achieve the above-mentioned purpose, a vertically long plow blade for crushing subsoil and cultivated soil is vibrated back and forth and up and down on a frame installed in the body of the tractor. A chisel is provided at the lower end of the long plow, facing forward and sloping downward as seen from the side, and covering almost the entire area of the long plow that is applied to the soil on the inner surface of the vertical part of the long plow. The present invention proposes an excavation device for deep-rooted crops in which a large number of longitudinal protrusions facing downward and sloping downward when viewed from the side are vertically arranged in parallel at intervals.

Next, embodiments will be described in detail with reference to the drawings.

Fig. 1 is a side view of the digging device for deep-rooted crops according to the present invention attached to a tractor for work. In the crop digging device, reference numeral 4 indicates a frame provided on the body of the tractor T, and reference numeral 3 indicates a vertically long plow blade supported by the frame 4.

The tractor T is located at the front end of the machine (Figs.
It is configured as a four-wheeled vehicle that travels by operating a control device located at the right end (in the figure).

The frame 4 provided on the body of the tractor T is
As shown in the figure, it is provided at the rear end of the body of the tractor T so as to protrude rearward (leftward in FIG. 2). An eccentric cam 5 is coaxially supported on the frame 4 and rotatably operated by a sprocket 8 which is conductively connected to a drive sprocket 10 provided on the body of the tractor T via a chain 9. be. Further, a fulcrum shaft 11 is provided on the upper surface side of the frame 4 by the rotation of the eccentric cam 5.
Upper and lower vibration generating bodies 11 that vibrate by reciprocating up and down are pivotally supported around the center a, and a plow blade formed vertically long at the front end of the vibration generating body 11, which is the end of vertical rotation. 3 is supported so that it can reciprocate and vibrate back and forth around a fulcrum shaft 3a. And, the plow meat 3 is
The rotating arm 6 is pivoted on the frame 4 so as to be reciprocated back and forth about the fulcrum shaft 6a as the eccentric cam 5 rotates, and is in contact with the rotating arm 6 via a roller 7 provided thereon. By the operation of the rotating arm 6, the rotating arm 6 is vibrated so as to rotate back and forth about the aforementioned fulcrum shaft 3a.

As described above, the vertically long plow body 3 has a portion 3 perpendicular to the chisel 30 provided at the lower end so as to protrude in one direction, as shown in FIG.
1 to form a substantially L-shape, and the inner side of the vertical portion 31 (the side from which the chisel 30 protrudes when the plow body 3 is viewed from the front)
As shown in Figures 3 and 4, a plurality of protrusions 32, 32, etc. in the front and back direction are arranged in parallel at intervals vertically over almost the entire area of the area where the soil is applied. It is set up like this.

As shown in FIG. 4, these protrusions 32 are provided parallel to the chisel 30 at the lower end of the plow body 3 when viewed from the side, but so as to protrude rearward (to the right in the figure) beyond the width of the vertical portion 31. It is desirable to have long sections in the front and back. In addition, each of these protrusions 32, 32... and the chisel 30 are attached to the plow body 3 so as to be inclined forwardly and downwardly when viewed from the side.

The embodiment device constructed in this manner operates as follows.

When the plow body 3 is mounted on the tractor T as shown in FIG. 1, the vibration generating body 11 vibrates vertically due to drive rotation of the eccentric cam 5, and the plow body 3 is rotated around the fulcrum shaft 11a of the vibration generating body 11. It vibrates up and down as shown by arrow c in FIG. At the same time, a rotating arm 6 that reciprocates back and forth by the drive rotation of the eccentric cam 5
1, the plow body 3 vibrates back and forth about the fulcrum shaft 3a provided at the front end of the vibrator 11 as shown by arrow b in FIG. As a result, the lower end of the plowfish 3 moves circularly as shown by arrow d.

The plow body 3 operating in this way is shown in Fig. 3.
With the inner surface of the vertical part provided with the ridges 32 facing the roots of the deep-rooted crop 2, insert it into the soil around the roots of the deep-rooted crop 2, and while driving and rotating the drive sprocket 10, turn the tractor. When the T is moved forward in the direction shown by arrow a in FIG. 1, the lower end of the plowfish 3 will move in the vertical direction as shown by the chain line in front of the lower end of the plowfish 3 in FIG. It moves underground along the planting row of the deep-rooted crop 2 while vibrating in a circular motion along the locus of the inertial circle having the long axis.

As a result, as shown in FIG. 3, vibration fracture lines generated from the side edges of the chisel 30 are formed in the field soil around the deep-rooted crop 2 due to the movement of the plow 3, as seen from the front. A, and a plurality of vibration fracture lines RO, H, NI, which are approximately parallel to this, each protrusion 3
It occurs from the side edge of 2, 32..., and thereby,
The soil around the roots of the deep-rooted crop 2 is shaken in the vertical direction over the entire upper and lower regions and rises to the ground surface, causing compaction of the soil around the deep-rooted crop 21. The entire soil around the roots of the deep-rooted crop 2 is expanded and softened.

Thereby, the deep-rooted crop 2 grown in the field can be easily and simply dug up without cutting the deep root part 21.

As described above, the digging device for deep-rooted crops according to the present invention has a vertically long plow blade 3 for crushing subsoil and cultivated soil on the frame 4 provided on the body of the tractor T.
is supported so that it can vibrate back and forth and up and down, and a chisel 30 is provided at the lower end of the long pulli 3 so as to be inclined downwardly toward the front in side view. This is because it consists of a large number of longitudinal protrusions, vertically spaced apart and slanted downwards when viewed from the side, over almost the entire area that acts on the soil. The long plowfish 3 can be excavated by moving the tractor T while acting on the soil near the roots of the root crop row from which the plowfish 3 is to be excavated, while vibrating it back and forth and up and down with the vibrating body. The upper surface of each protrusion 32... and the upper surface of the chisel 30, which are vertically arranged in parallel over almost the entire area of the area to be applied to the soil on the inner side,
The vertical movement caused by the vertical vibration of the plow body 3 acts to push up the soil layer around the roots of the deep-rooted crop 2, creating vibrational fracture lines I, R, and I that move diagonally upward, respectively. The soil around the roots of the deep-rooted crop 2 is shaken up and down, causing the soil to float up, causing the soil to swell and soften efficiently. Therefore, the deep-rooted crop 2 can be dug up easily, quickly and reliably without cutting the deep roots.

[Brief explanation of the drawing]

Fig. 1 is a side view of an excavation device that can implement the present invention installed on a tractor, Fig. 2 is a plan view of the same, Fig. 3 is a front view of the main parts of the same, and Fig. 4 is a main part of the same. FIG. 5 is a longitudinal sectional front view of the main parts of the conventional excavation device. Explanation of drawing symbols: A... Excavation device, T... Tractor, 1... Plough, 10... Drive sprocket,
DESCRIPTION OF SYMBOLS 11... Vibration body, 11a... Fulcrum shaft, 2... Deep-rooted crop, 21... Deep root part, 3... Plough, 3a... Fulcrum shaft, 30... Chisel, 31... Vertical part, 32...
...Protrusion, 4...Frame, 5...Eccentric cam, 6...
... Rotating link, 6a... Fulcrum shaft, 7... Roller,
8...Sprocket, 9...Chain.

Claims (1)

[Scope of utility model registration request] A vertically long plow 3 for crushing subsoil and cultivated soil is supported on a frame 4 provided on the body of the tractor T so as to vibrate back and forth and up and down.
A chisel 30 is provided at the lower end of the chisel 30 so as to face forward and be inclined downward when viewed from the side. An excavation device for deep-rooted crops, which consists of a large number of forward-facing and downwardly sloping protrusions arranged vertically in parallel at intervals.