JP2696030B2 - Root crop harvester - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a root crop harvester for digging root crops such as radish.

[0002]

2. Description of the Related Art If it is a manual operation to dig and harvest a root crop such as a radish, the worker is extremely labor intensive because the worker has a bent posture for a long time. For this reason, a radish harvester has been developed as a tractor-mounted type, in which ridges are softened with excavating claws before digging, and then the radish foliage is pulled out with a pair of left and right pulling belts.
(See pages 869-870 of the new edition of Agricultural Machinery Handbook).

[0003]

In the conventional harvesting machine, when harvesting radish cultivated in a mulch cultivation, the multi-film was caught on the excavation claw preceding the pulling belt, and the operation was difficult. On the other hand, if the multi-film between the ridges is cut with a coulter or the like prior to the excavation claw, the foliage that is hanging and growing on the ridge is also cut, and in this case, the subsequent drawing is performed with the foliage interposed therebetween. In addition to the drawback, when pickled radish and the like are dried in the sun, it is difficult to bind the foliage with a string.

[0004] Therefore, the present invention provides a root vegetable crop which cuts and drills a multi-film on a furrow after pulling out a radish so as to reduce hooking of the multi-film on an excavation claw and eliminate the risk of foliage cutting. The purpose is to provide a harvester.

[0005]

The present invention comprises an excavating claw 10 for expanding and softening a ridge B on which a root crop A is planted, and the excavating claw is provided by a pair of left and right extraction belts 11 and 12 which are inclined rearward and upward. In order to achieve the above-mentioned object, the following technical measures have been taken in a root crop harvester in which the root crop A of the ridge B softened in 10 is pulled out.

That is, according to the present invention, the cutting tool 26 of the multi-film C, which is covered on the ridge B,
A ridge through which the excavating claw 10 passes behind the drawing start ends of the first and second pullouts.
It is characterized in that it is provided opposite to the ridge B2 on the opposite side from the ridge B2.

[0007]

[Action] When harvesting root crop A, ridge B with excavating claw 10
Then, the leaves A of the crop A are pinched from both sides by a pair of left and right pulling belts 11 and 12, and the crop A is pulled upward from the ridge B while being relatively moved backward. At this time, the excavation claw 10 passes through the ridge B1 where the edge C1 of the multi-film C, which is covered over two ridges, passes through the multi-film C.
The cutting tool 26 passes through the furrow B2 in the continuous part C2 of the above, and the continuous part C2 is cut by the cutting tool 26 during or after the crop A is pulled out.

Therefore, in the next harvest, even if the excavating claw 10 passes through the continuous portion C2, the continuous portion C2 is divided, so that the film C is not caught or pulled.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 3 illustrates a tractor-mounted root crop harvester 1 mounted on a rear side of a tractor via a three-point link or the like. An upper hitch pin 3 and left and right lower hitch pins 4 are provided on the front side of a machine frame body 2. The input shaft 5 is provided at the center.

Therefore, a three-point link provided at the back of the tractor (not shown) is connected to each of the hitch pins 3 and 4, and the PTO shaft of the tractor and the input shaft (PIC shaft) 5 are connected by a universal joint shaft. The drive source of each part. A bracket 6 projects from a front portion of one of the right and left ends of the machine frame body 2, and a pillar 8 is pivotally supported by the bracket 6 via a horizontal pivot 7 so as to be able to swing back and forth.

The rear pillar 8 has a flat plate shape and its front rising edge has a cutting edge to reduce the resistance.
At the lower end, there is provided a blade portion 9 which is bent outward in an L-shape, and the front and rear movement of the blade portion 9 causes the lower ridge B on the lower side of the root vegetable crop A to be extracted to be softened. It has become
The pillar 8 and the blade 9 constitute a drill claw 10. In addition, blade part
Reference numeral 9 denotes a blade edge that is inclined forward as the rear pillar 8 side is further forward than the rear pillar 8 in plan view.

Behind the excavating claw 10, a pair of left and right pulling belts
11 and 12 are provided, and the pull-out belts 11 and 12 are
This is to pull out the foliage a of the crop A in the ridge B softened and softened in step 10 from both sides. Pull belt 11,12
The pulleys 15, 16, 1 at the front and rear ends are mounted on a pair of left and right
7,18 between the pulleys 15,16 and between the pulleys 17,18
It is wound endlessly between.

The inner pull-out belt 12 extends in an L-shape in plan view toward the other end along the front horizontal frame.
In the rear side frame, the extracted crop A is pulled out with a pulling belt 11,1.
A transverse feed belt 19 is provided for receiving from 2 and sending in the lateral direction. Each of the belts 11, 12, and 19 is driven by power from the PIC shaft 5 via a transmission mechanism in a transmission case 20, and
Guide pulleys 21 and 22 for pressing the pull-out belts 11 and 12 against each other are provided on the inclined frame portions 13 and 14, respectively.
A foliage guide member (one is omitted) 23 is provided.

Referring to FIGS. 1-4, the outer inclined frame 14
A mounting boss 24 in the vertical direction is fixed to the mounting boss 24. A column 25 is inserted through the mounting boss 24 so that the height can be adjusted with bolts or the like. A cutting tool 26 is provided at the lower end of the column 25. I have. Cutting tool 26 is for perforating cut or hole the multi-film C which is placed over the ridges B, rear and and the excavation teeth 10 from drawing the starting end of the drawing belts 11 and 12
The ridge B1 is provided so as to face the ridge B2 passing therethrough and the ridge B2 on the opposite side .

The cutting tool 26 is a disk having an outer peripheral edge as a cutting edge,
Alternatively, as shown in FIG. 5, a disk having a sawtoothed outer peripheral edge, or a disk having piercing projections provided at predetermined intervals on the outer peripheral edge as shown in FIG. It was done. Further, as shown in FIG. 1, the excavating claw 10 is connected to the eccentric pin 29 of the rotating disk 28 and the upper part of the pillar 8 by a connecting rod 30 so that the rotating disk can be driven by the PIC shaft 3.
By rotationally driving the rotary disk 28, the connecting disk 30 swings back and forth by a crank motion.
Are covered with a cover 31.

FIG. 7 shows another embodiment of the present invention.
A cylinder 32 is fixed to the bracket 6, a support 33 is inserted into the cylinder 32, and positioned with set bolts 34.
33 has a forward descent shape, and a disk coulter 35 is provided at the tip thereof to cut off weeds and the like that catch on the pillar 8 in advance, and other configurations are the same as those described with reference to FIG. And the common parts are indicated by common symbols.

When the crop A such as radish is harvested by using the harvester 1 having the above configuration, the following procedure is performed. The pair of left and right pull-out belts 11, 12, the excavating claw 10, and the cutting tool 26 are in a state of protruding to one side of the tractor. Therefore, in those coated with a multi-film C over 2 consecutive ridges B as shown in Figure 4, arranged so as through the re pillar 8 of the excavation teeth 10 on the furrow B1 multi film side edge C1, the cutting tool 26 is drilling the nail
As shown in FIG. 2, the pulling belts 11 and 12 are connected to the ridge B1 on the opposite side to the ridge B2 on the opposite side .
The tractor is caused to travel along the longitudinal direction of the ridge while driving each part in a state where the tractor is opposed to.

Then, the ridge B on the lower side of the crop A is swelled and softened by the blade portion 9 of the excavating claw 10, and the foliage a of the crop A is sandwiched between the pulling belts 11 and 12 from both sides. Then, the crop A is pulled out. At this time, since the pillar 8 passes through the portion of the film side edge C1,
The film is less entangled and dragged, while the film continuous portion (continuous portion) C2 in the ridge B2 is more crop A than the ridge B.
When the cutting tool 26 passes after the extraction, the continuous portion C2 is cut or pierced without cutting the foliage a.

Therefore, in the next operation, even if the pillar 8 passes through the ridge B2, the continuous portion C2 is cut off, so that the film C is not pulled or caught. In addition, the present invention can make the following design changes. When the cutting tool 26 is a rotary type, it is driven. Cutting tool 26
Into a straight sword. Also, at this time, the straight knife should be intermittently moved up and down to make a hole in the film.

The cutting tools 26 may be provided with a phase difference between the front and the rear, or may be of a multiple type. Further, the crop A excavated with the pull-out belts 11 and 12 may be packed in a container or dropped in a rice field.

[0021]

The present invention is as described above. The multi-film does not get caught or caught on the excavating blade for expanding and softening the ridges, and there is no cutting of the foliage even when cutting or punching the film. There is no problem in drying the harvested crops in the sun.

[Brief description of the drawings]

FIG. 1 is an elevational side view of a main part showing an embodiment of the present invention.

FIG. 2 is a plan view of a main part showing an embodiment of the present invention.

FIG. 3 is an overall perspective view showing an embodiment of the present invention.

FIG. 4 is a sectional view showing a working (harvesting) posture.

FIG. 5 is a side view showing a second embodiment of the cutting tool.

FIG. 6 is a side view showing a third embodiment of the cutting tool.

FIG. 7 is an overall perspective view showing a second embodiment of the harvester of the present invention.

[Explanation of symbols]

 1 Harvester 10 Drilling Claw 11 Extraction Belt 12 Extraction Belt 26 Cutting Tool

Claims (1)

(57) [Claims] 1. A ridge (B) on which a root crop (A) is planted.
Ridges (B) with ridges (B) softened by the excavation claws (10) by a pair of left and right pull-out belts (11) and (12) inclined upward and backward. ), The cutting tool (26) for the multi-film (C) covered on the ridge (B) is pulled out of the pulling belts (11) and (12). The furrow (B ) behind the starting end and through which the excavating claw (10) passes
A root crop harvesting machine characterized by being provided opposite to the furrow (B2) on the side opposite to 1) .