JP2000004628A - Harvester - Google Patents

Abstract

PROBLEM TO BE SOLVED: To mechanically and reasonably remove soil attached to the surface of a root part of a root vegetable. SOLUTION: This harvester capable of successively pulling out root vegetables planted in a field by a nipping and conveying means 3 while traveling, cutting and removing the stem and leaf parts of the pulled-out root vegetables, and sending the root vegetables without the stem and leaf parts into a storing part one by one, has a means 36 for removing soil before the root vegetables reach the storing part, regulated so that the soil attached to the root parts may be removed from the surface of the root vegetables by a rotary brush 36a driven by a motive powder.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a harvester for root vegetables such as carrots.

[0002]

2. Description of the Related Art There is a harvester which operates so as to continuously pull out ginseng vegetated in a field while traveling, cut off the foliage of the ginseng, and feed the roots one after another into a receiving part. ing. This kind of harvester is designed such that after extracting ginseng, the foliage is cut off by foliage cutting means.

[0003]

Generally, mud (including sand) adheres to the root surface of the carrot extracted from the field by the harvester. It is preferable that this mud be dropped on the field as much as possible, so if there is a man, a worker accompanies the storage unit, and the mud attached to the root is removed manually and dropped on the ground. I have. However, such a process is time-consuming and constitutes a factor that limits the harvest rate.

[0004] Mud adhering to ginseng remarkably accelerates wear of cutting means such as foliage provided in a harvester. An object of the present invention is to provide a harvester that can solve such a problem.

[0005]

In order to achieve the above object, according to the present invention, root crops vegetated in a field are continuously extracted during running, and harvesting is performed such that the roots are successively fed into a receiving section. In the machine, there is provided a mud removing means for removing mud adhering to the root surface by a power-driven flexible rubbing part (for example, brush bristle) before the root reaches the accommodation part.

[0006] The root of the root vegetables sent into the storage unit is in a state in which the mud attached to the root is mechanically removed, and the removed mud falls directly into the field.

The above invention is embodied as follows. That is, as described in claim 2, the roots and leaves of the root vegetables vegetated in the field are continuously pulled out during traveling by pinching and transporting the roots with a pair of left and right endless belts, and then the root vegetables are extracted. In a harvester that cuts the foliage and operates to feed the roots one after another into the storage unit, the roots are rubbed with a power-driven rotary brush until the roots are cut off the foliage. A mud dropping means for removing mud adhering to the vehicle is provided.

According to this, the rotary brush removes mud adhering to the root without damaging the root. Since the foliage of the root is removed after the mud is removed, wear of the foliage removing means by the mud is prevented.

Alternatively, as described in claim 3, the foliage of the root vegetable vegetated in the field is pinched and conveyed obliquely upward and rearward by a pair of left and right endless belts to continuously pull out the root vegetable while traveling. Then, during the transportation by the endless band, the tip of the root is cut off by the tip cutting means, and then the foliage of the root vegetable is cut off by the foliage cutting means, and the roots are successively fed into the accommodation section. By the time the root reaches the root cutting means, a spiral groove around the center of rotation is formed with long and short brush bristles, and the center of rotation has a tilt angle different from the holding and conveying direction of the endless band. Mud-dropping means is provided for rubbing the roots of the root vegetables with a pair of left and right rotating brushes directed in the direction and driven by power to drop mud attached to the roots.

[0010] According to this, the rotating brush effectively rubs the entire surface of the root portion with brush bristles, and applies a feeding force to the foliage of the root vegetable conveyed by the endless band with a spiral groove. The collision between the roots sent by the spiral groove is prevented by the intervening brush bristles. After the mud is removed from the root, the root is cut off by the root cutting means, and the foliage is cut off by the foliage cutting means.

According to the third aspect of the present invention, the feeding speed of the root and the leaf of the root vegetable by the pair of left and right endless belts and the feeding speed of the root of the root vegetable by the spiral groove of the pair of left and right rotating brushes are substantially. Match. If you do this,
When mud is removed from the roots of the root vegetables by the rotating brush, excessive pulling force in the front-rear direction does not act on the foliage of the root vegetables transported by the sandwiching endless band, and the roots of the root vegetables are held in an upright posture. Smooth mud removal action.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring to FIGS.
An embodiment of the present invention will be described. 1 is a side view of a root vegetable harvester, FIG. 2 is a schematic plan view, FIG. 3 is a front view, FIG. 4 is a plan view of a power transmission system, and FIG. 5 is an explanatory diagram of a power transmission system.

As shown in FIG. 2, a pair of left and right traveling crawlers 2a and 2b are arranged below the traveling body 1 so that the traveling body 1
Above the outer edge of the traveling crawler 2b (on the upper side in FIG. 2 and on the right side in the traveling direction) on the excavated and raised side of the root vegetables K such as carrots, etc. The engine 6 is arranged, and at the rear end of the traveling
The transmission 7 shown in FIG. 1 is arranged. The power of the engine 6 is transmitted to a transmission 7 via a belt transmission mechanism 7a as shown in FIGS. 4 and 5, and then to a driving wheel 8 disposed at the rear end of the pair of left and right traveling crawlers 2a, 2b. Is transmitted.

A pair of left and right endless belts 3 are provided outside the outer edge of the traveling crawler 2a on the left side in the traveling direction on the unexcavated side of the root vegetable K in the traveling machine body (lower side in FIG. 2).
3 are provided, and specifically, are as follows.

That is, a support frame 10 is supported by a working unit rotation fulcrum 9 at a position near the rear of the traveling body 1 shown in FIG. The pair of left and right endless belts 3, 3 are wound around the start end wheels 11, 11 and the rear end wheels 12, 12 shown in FIG. The middle part is supported in a substantially straight line by a number of intermediate wheels 13.

As shown in FIGS. 2 and 4, a pair of left and right endless belts 3 and 3 hold a conveyer line H of the foliage of the root vegetable K from the outer edge of the traveling crawler 2a on the unexcavated and raised side of the root vegetable K. It is arranged on the outside so as to be parallel to the traveling direction of the traveling body 1 in plan view. At this time, by providing a large-diameter scraping wheel 3A (see FIG. 15) which is rotated integrally with the start-end wheels 11, 11, a starting portion of the nipping and conveying is constituted.

[0017] Of the pair of left and right endless belts 3, 3 of the above-mentioned holding and conveying means, the foliage of the root vegetable K to be withdrawn is located at the lower part in front of the root of the root vegetable K which is not excavated. A weeding device 14 is provided for separating the root vegetables K so as not to be entangled with the foliage.

This weeding device 14 is shown in FIGS. 4, 6 to 9, that is, a plurality of weeding tines 15 whose base ends are fixed to a rotatably driven endless belt 64 and which are arranged at predetermined intervals. Is configured to move upward from the field scene 19 (see FIG. 1) on a substantially vertical surface on the front side in the traveling direction of the traveling machine body 1.

In the lower end of the pair of left and right sandwiched endless belts 3, 3 on the front side on the side where the root vegetable K has been excavated, a raising device 1 for raising the foliage of the root vegetable K to be extracted.
6 are arranged.

The raising device 16 is shown in FIGS.
0, that is, the endless belt 64 driven to rotate.
1, a plurality of tines 17 fixed at a base end and arranged at a predetermined interval are arranged on the front side of the starting end wheel 11 so as to be substantially orthogonal to the tines 15 of the weeding device 14, and When the tine 17 moves upward from the surface 19, the tip of the tine 17 is disposed so as to face the side of the tine case 65 which is the affected side of the tine 15 in the weeder 14.

As described above, the tine 15 moved upward on the substantially vertical plane in the weeding device 14 and the weeding device 1
The tine 17 of the raising device 16 perpendicular to the side surface of the tine case 65 can raise and rake up the left and right sides of the hanging foliage of the root vegetables K to be dug up, so that the starting wheel 11,
The foliage can be reliably clamped at the start of the clamping and transporting by the clamping and transporting means including the pair of left and right clamping endless belts 3 and 3 wound around 11.

Further, as shown in FIGS. 1 to 4 and 11, each of the upper link 22 and the lower link 23 serving as an elevating link mechanism for elevating and lowering the main part of the excavation is provided at a pivot point on the base end side. Reference numerals 20 and 21 are disposed on the inner surface side of the traveling body 1 in front of the working unit rotation fulcrum 9 and serve as parallel links that can be vertically rotated about the vertical rotation fulcrums 20 and 21. A vertical support rod 24 is connected to the distal ends of the upper link 22 and the lower link 23, and a digging blade 25 is fixed to a lower end of the vertical support rod 24.

As shown in FIGS. 1, 2 and 5, an endless belt 29 is wound around a pulley 28 fixed to the input shaft 20a of the upper pivot 20 and an output pulley 27 of the engine 6. The input shaft 20a is rotated so as to rotate, and the base end of the upper link 22 is connected via an eccentric boss (not shown) fitted to the input shaft 20a. It is designed to be driven by vibration. Thereby, the digging blade 25 inserted from the field scene 19 is vibrated up and down and back and forth below the root of the root vegetable K,
The root of the root vegetable K can be easily pulled out while the traveling body 1 is moving forward.

As shown in FIGS. 1, 4 and 5,
The parallel upper and lower links 2 are provided by a hydraulic cylinder 26 mounted between the base end of the lower link 23 and the traveling body 1.
2, 23 are configured to be moved up and down.

As shown in FIGS. 1, 2 and 4, the forward pipe frame 3 is attached to the outer end of a pipe-shaped power transmission horizontal frame 30 provided on a concentric axis with the working unit rotation fulcrum 9.
1 is connected. The leading end of the forward facing pipe frame 31 is connected to a raising transmission pipe 32 extending laterally toward the excavated raising side of the root vegetable K above the middle part in the longitudinal direction of the pair of left and right endless bands 3, 3. A transmission case 33 extending forward from an undigged side end of the raising transmission pipe 32 is provided.
It is connected to a weeding transmission case 34 fixed to the upper part of the weeding device 14.

A cutting means 35 having a pair of left and right horizontally rotating rotary blades 35a, 35a, 35a, 35a in the longitudinal direction of the pair of left and right endless belts 3, 3 in front of the working unit rotation fulcrum 9, generally below the longitudinally intermediate portions. And a pair of rotating brushes 36a, 36a in front of the cutting means 35 as shown in FIG.
A mud removing means 36 provided with a is provided.

As shown in FIGS. 1, 2, 4 and 5, the power of the engine 6 is transmitted through a belt 38 from a pulley 37 fixed to an input shaft 20a coaxial with the upper pivot 20. The power is transmitted to a pulley 40 fixed on a protruding end of an input shaft 39 which is coaxial with the working unit rotation fulcrum 9 and is inserted into the power transmission frame 30. A transmission shaft 31a in a transmission pipe 32, a transmission case 33, and a weeding transmission case 34;
While being transmitted to the raising device 16 and the weeding device 14 via transmission mechanisms such as 32a, 34a and a chain 33a, the pulley 351 fixed to the outer end of the input shaft 39, the belt 352, and the root cutting The power is transmitted to the root cutting means 35 via a pulley 353 fixed to the input shaft 353a held by the means 35, and transmitted to the mud removing means 36 from the cutting means 35.

The PTO of the transmission 7
The power of the engine 6 is also transmitted from the output shaft 36 to a pulley 401 fixed to another input shaft 39a (see FIG. 5) which is coaxial with the working unit rotation fulcrum 9 via a belt 47a. It has been done. The rotation of the pulley 401 is transmitted to the rear transmission case 42 via the chain 41 and is also transmitted to the input portion coaxial with the rear wheels 12 of the pair of left and right endless bands 3 via the chain 410. The two endless belts 3 and 3 are rotated, and a pair of left and right endless transport belts are disposed below the rear wheels 12 to transport the foliage of the root vegetables K horizontally and rearward. The foliage is transmitted to a foliage discharging device 43 composed of 43a, 43a and a foliage cutting means 44 composed of a pair of left and right horizontally rotating rotary blades 44a, 44a.

As shown in FIGS. 13 and 14, the upper end of the root of root vegetable K is guided horizontally rearward below both rear end wheels 12 so that the foliage discharging device 43 is provided.
A pair of right and left shoulder alignment guide rods 45 for inheriting the stalks and leaves are arranged. As shown in FIG. 2, a curved guide plate g projects rearward from the rear transmission case 42 behind the foliage discharge device 43.

A sorting conveyor is provided below the cutting means 44 for receiving the root of the root vegetable K from which the foliage has been cut off and transporting the root to the rear end of the traveling machine 1 (the side where the root vegetable K is excavated). 46 is disposed, and power is transmitted from a pulley 461 fixed to the input shaft 39 to a pulley 462 of an input portion 46a to the sorting conveyor 46 via a belt 47b.

The sorting conveyor 46 has a large number of rod-shaped slats 46b stretched at a constant interval between a pair of endless chains. Defective products are selected from the root vegetables K on 46.

At the discharge end of the sorting conveyor 46, as shown in FIG. 2, there is a front and rear longitudinal container table 49 on which a container 48 for receiving and accumulating good root vegetables K is placed. The base of the container table 49 is rotatably connected to the side surface of the traveling body 1 via a hinge so that the container table 49 can rotate upward and downward during non-operation, and can be held substantially horizontal during operation. It has been made like that.

The root of the root vegetable K which is cut and dropped by the foliage cutting means 44 is changed in posture so that the root of the root vegetable K is laid in the sorting conveyor 46 so as not to be stuck in the gap between the adjacent slats 46b. A cushioning material 50 made of a rubber plate shown in FIG. 13 is arranged in the root falling path so as not to collide directly with a hard slat 46b made of metal or the like.

As described above, the pair of left and right endless bands 3, 3, the raising device 16 and the weeding device 14 are
The frames of the respective units are connected so as to rotate integrally up and down about the working unit rotation fulcrum 9, and as shown in FIGS. A grounding front wheel 52 attached to the front end of the protruding support rod 51
Is supported on the field scene 19.

During non-operation or when traveling on the road, the excavating blade 5, the pair of left and right endless bands 3, 3, the raising device 16 and the lower end of the weeding device 14 are not buffered on the ground. A mechanism is formed for holding this portion in the raised position.

This mechanism is specifically configured as follows.
That is, when the hydraulic cylinder 26 is extended in FIG. 11, the vertical link 22 as a vertical link mechanism,
The front end side of 23 rotates upward.

At the time of this rotation operation, the upper surface of a rotatable roller 53 for lifting provided on the side surface of the lower link 23 is provided on the lower surface side of the support frame 10 of the pair of endless ends 3 and 3 and the like. It moves along the lower surface of the guide rail 54 having a “H” shape in side view, and by this movement, together with the excavating blade 25, the endless bands 3, 3, the raising device 16 and the weeding device 14.
Is lifted greatly above the field scene 19 integrally.

As shown in FIGS. 13 and 14, the container mounting table 76 is mounted on the traveling machine 1 below the conveying side of the sorting conveyor 46 on which the foliage cutting means 44, the foliage discharging device 43, and the endless endless band 3 are arranged. A waste container 77 is placed on the sorting conveyor 46 for storing the defective root vegetables, and the defective root vegetables selected by the operator on the sorting conveyor 46 are disposed in the waste container 77.
The soil falling from the root vegetable K, which is held and collected at the work unit rotation fulcrum 9 and is nipped and conveyed by the nipping endless belt 3, is deposited on the work unit rotation fulcrum 9 to prevent the rotation. Is provided with a roof-shaped fulcrum cover 78 for preventing the above.

The front end of the cover rear surface 79 of the cover 78 which is inclined downward and rearward from the top of the fulcrum cover 78 extends above the front side of the waste container 77, and extends from the holding endless belt 3 located above the cover rear surface 79. At the transfer section to the foliage discharge device 43, most of the immature rhizomes that fall due to a transfer failure due to immaturity and short foliage are guided into the receiving waste container 77 by the cover rear surface 79, thereby causing a defective product. It is configured to collect waste vegetables, such as root vegetables and immature root vegetables, without releasing them to the field, and to prevent the waste vegetables from being scattered in the field after work, and to deteriorate the appearance of the field after harvest. I have.

Further, a middle portion of the cover rear surface 79 is constituted by a sieving line 79a, and only the mud is sieved below the cover rear surface 79, so that the mud accumulates on the cover rear surface 79 and hinders the flow of the root vegetables. It is configured to prevent such a situation.

Further, a cushioning material 81 made of a rubber plate is disposed in a predetermined range on the upper surface of the conveyor frame 80 on the side on which the root vegetables K falling on the sorting conveyor 46 fall, and the root portion falls on the metal surface of the conveyor frame 80. It is configured to abut and prevent the root from being damaged.

Next, features of the harvester will be described in more detail. As shown in FIGS. 12 and 15, the root cutting unit 35 includes a device frame 354 fixed to the support frame 10 so as to be position-adjustable. The device frame 354 includes a vertical output shaft a, a and a forward output shaft b, b in addition to the input shaft 353a, and a gear for transmitting the power transmitted to the input shaft 353a to the output shafts a, b. It has a built-in mechanism.

A rotary blade 3 is provided at the upper end of each of the vertical output shafts a, a.
5a is fixed, and these rotary blades 35a, 35a are configured to rotate in the arrow direction u.

The sludge removing device 36 has a rotary brush 36a fixed to each of the forward output shafts b. At this time, the pair of rotating brushes 36a, 36a is configured such that the inclination angle of the rotation center axis b1 extending the output shaft b on the front-rear vertical plane is smaller than the inclination angle of the sandwiching endless belt 3 on the front-rear vertical plane. While making small, each left and right rotating brush 36a
Are brought close to the corresponding left and right endless endless belts 3. At this time, it is preferable that the distance between the pair of rotation center axes b1 and b1 increases as it goes forward.

The left and right rotating brushes 36a are formed such that spiral brushes m which are symmetrically opposed to each other are formed by arranging long brush bristles and short brush bristles in a two-row arrangement on each rotation center axis b1 in a spiral manner. At this time, the lengths of the long and short brush bristles and the widths c1 and c2 thereof are determined in relation to the root diameter of the root vegetables to be harvested. 3, the transport speed of root vegetables,
During rotation of the rotating brush 36a, the spiral groove m is set so that the feed speed at the time of feeding the root vegetables upward substantially matches.

The direction of rotation of the pair of rotating brushes 36a, 36a is such that the brush bristles go from top to bottom at these opposing portions, and their rotation speed is determined in relation to the size of the lead as described above. You. The left and right rotating brushes 36a, 36a are rotated synchronously so that the peaks and valleys of the left and right spiral grooves m, m coincide.

As shown in FIGS. 13 and 14, the foliage cutting means 44 includes an apparatus frame 442 having an input shaft 441 to which power is transmitted from the chain 41 (see FIG. 5). A pair of vertical output shafts d, d are projected from the upper surface, and a rotary blade 44a is fixed to the tip of each output shaft d. At this time, each rotary blade 44a is adapted to match the inclination of the tip of the shoulder alignment guide rod 45, and is finely adjusted up and down independently.

The apparatus frame 442 is connected to a pair of left and right plate members f fixed to the pipe frame 443 which is the same as the support frame 10 of the nipping and conveying means.
Are coupled through. Each parallel link 444 has two parallel link members h, h, and one end of each link member h is axially attached to the plate member f, and the other end is axially attached to upper and lower portions of the device frame 442, respectively. There is something.

On the other hand, a screw shaft e2 to which a rotary handle is fixed is rotatably mounted at a fixed position on a bearing body e1 provided on the pipe frame 443. This screw shaft e2 is connected to one of the parallel links 444. It is screwed to a nut body e3 attached to the link member h.

Next, a description will be given of an example of use and operation when harvesting root vegetables K by the harvester. The root vegetables K such as carrots planted in rows in the field are harvested row by row. For this reason, the operator drives the engine 6 while sitting on the driver's seat 5 to drive the traveling body 1 while driving. By shortening the piston rod of the hydraulic cylinder 26, the digging blade 25 is pushed into the ground in the position of the row to be harvested, while the direction of the traveling body 1 is adjusted, and the pair of left and right endless belts 3, 3 are adjusted. Are positioned so that the space between the pair of left and right starting end wheels 11, 11 is located in the row of root vegetables K on the side of the taste digging.

As the traveling machine 1 advances, the weeding device 14
As a result, the foliage of the root vegetable K to be excavated and the foliage of the root vegetable K on the unexcavated side are separated so as not to be entangled. The excavating blade 25, which is vertically swung by the rotation of the eccentric boss at the base of the upper link 22, loosens the subsoil and excavates below the root of the root vegetables K in the row to be harvested.

Next, the rotation of the tine 17 of the raising device 16 causes the foliage to start clamping the raised foliage at the starting wheels 11, 11 of the clamping endless belts 3, 3. Since the pair of pinched endless belts 3 and 3 convey the foliage so as to rise toward the rear of the traveling machine 1, the roots of the foliage are pulled out of the field with a light force.

A root vegetable K lifted toward the rear of the traveling machine 1 along the nipping transport line H of the pair of nipping endless belts 3,3.
After the roots of the roots are rubbed with the brush bristles of the rotary brushes 36a, 36a to scrape off attached mud and dangling remaining leaves, such as dead leaves, the protruding ends are cut off by the rotary blades 35a, 35a, and the length is cut off. Be equalized.

The root thus cut off is further lifted to reach the shoulder alignment guide rod 45. Here, the root portion of the root vegetable K has its shoulder portion restrained at the lower portion of the guide rod 45 and is moved substantially horizontally rearward, and the foliage portion above it is a pair of left and right and vertical transport of the foliage discharging device 43. Belts 43b, 43b
Is moved to the rear of the traveling body 1 while being pinched. On the way, a pair of left and right rotary blades 4 of the foliage cutting device 44
By 4a and 44a, the root vegetable K is cut between the root and the foliage.

The roots thus cut and separated fall freely, are temporarily received and buffered by the cushioning material 50, are then moved laterally on the sorting conveyor 46, are collected in the container 48 at the rear of the container table 49, and are harvested. .

In this embodiment, the provision of the mud dropping means 36 in front of the root cutting means 35 means that most of the transmission mechanism of the root cutting means is also used as that of the mud dropping means 36. And the rotary blade 35a,
35a prevents cutting mud.

The angle of inclination of the rotation center axis b1 of the rotating brushes 36a, 36a on the front-rear vertical surface is determined by the endless band 3,
3 is smaller than the inclination angle on the front-rear vertical surface, and the leading ends of the rotating brushes 36a on the left and right sides are brought closer to the corresponding endless endless belts 3 on the corresponding holding conveyance line H. The root portion of the root vegetable K that is nipped and conveyed is a rotating brush 36.
Before passing between a and 36a, the entire surface is rubbed with brush bristle from the shoulder to the tip to perform the entire mud removal.

The fact that the distance between the pair of rotation center shafts b1, b1 and the forward output shafts b, b increases with the forward direction of the fuselage means that the root portion of the root vegetable K is moved between the pair of rotation brushes 36a, 36a. To enter smoothly.

The fact that each rotating brush 36a is formed by arranging long brush bristles and short brush bristles in a two-row arrangement spirally on the rotation center axis b1 means that the root of the root vegetable K is formed by the wedge action of the spiral groove m of the brush bristles. To the feeding direction in the same direction as the nipping and conveying action by the nipping endless belts 3, 3,
The root portions of the root vegetables K conveyed one after another between the endless endless belts 3, 3 are moved at a constant interval to prevent the collision between the root portions.

The lead of the spiral groove of each rotary brush 36a is conveyed by the endless belts 3, 3, and the feed speed of the roots K during the rotation of the rotary brushes 36a, 36a. Are set so as to substantially match with each other, because the root feeding movement during the transportation of the root vegetables K by the sandwiching endless belts 3 and 3 is too fast or too slow, and excessive pulling force is applied to the foliage in the transport direction. Prevents the phenomenon in which.

The fact that the rotating direction of the pair of rotating brushes 36a, 36a is such that the brush bristles go from top to bottom at these opposing portions is that the root portions of the root vegetables K being conveyed by the endless belts 3,3. The mud removal process is performed stably.

In order to change the height of the cutting position of the foliage of the root vegetable K which has been guided by the shoulder alignment guide rod 45 and reached the rotary blades 44a, 44a, the rotary handle (screw shaft e) is rotated. . Thereby, the pair of rotary blades 44a, 44a
Is moved up and down to a desired position, and the root is cut off at the desired height.

When the rotary handle is operated, the pair of rotary blades 44a, 44a are moved in the same manner as the apparatus frame 442, so that the rotary blades 44a, 44a are always kept in a fixed relative arrangement, and furthermore, are translated by the parallel link 444. Therefore, regardless of the height of the pair of rotary blades 44a, 44a, the gap between the rotary blades 44a, 44a is constant and does not need to be readjusted, and can always exhibit a constant cutting performance. The surface inclination of the pair of rotary blades 44a, 44a is kept parallel to the shoulder alignment guide rod 45, and the root vegetable K is the rotary blade 44a,
By 44a, the root is cut at a substantially right angle to the vertical center.

[0064]

According to the present invention described above, the mud adhering to the root surface of the root vegetable can be mechanically removed and the root can be accumulated in the storage portion, and therefore, the labor for dropping the mud manually is reduced. This makes it possible to save crops efficiently, to facilitate root treatment from harvest to shipment, and to return the removed mud directly to the field.

According to the second aspect, the mud attached to the root surface of the root vegetable can be removed without damaging the root, and the foliage of the root is cut off after the mud is removed. The abrasion of the main part to be cut by the mud is suppressed.

According to the third aspect of the present invention, almost the entire surface of the root portion is effectively rubbed with brush bristles, so that mud on the entire surface of the root portion can be removed neatly. Since the groove gives the feeding force to the root of the root vegetable, the rotating brush does not impair the transport of the root vegetable by the endless band during the mud dropping, and the root vegetable that is transported adjacent to the front and rear by the endless belt. Each root of the root group is kept apart from other roots by its spiral groove during mud removal by the rotating brush, and collision with other roots is prevented.Therefore, cracks due to collision of roots during mud dropping Does not occur, and since the root is removed by the root cutting means or the foliage cutting means after the mud is removed, wear of the cutting means by the mud is prevented.

According to the fourth aspect of the present invention, the rotating brush does not exert an excessive forward and backward force on the foliage during mud removal of the root by the rotating brush, and the root is held in the vertical position. Therefore, smooth mud removal processing is performed.

[Brief description of the drawings]

FIG. 1 is a side view of a harvester according to an embodiment of the present invention.

FIG. 2 is a schematic plan view of the harvester.

FIG. 3 is a front view of the harvester.

FIG. 4 is a plan view of a power transmission system of the harvester.

FIG. 5 is an explanatory diagram of a power transmission system of the harvester.

FIG. 6 is a side view of the weeding device of the harvester.

FIG. 7 is a front view of a foliage processing unit of the harvester.

FIG. 8 is a sectional view of a tine case of the harvester.

FIG. 9 is a side view of a foliage processing unit of the harvester.

FIG. 10 is a front view of a raising device of the harvester.

FIG. 11 is a side view of an elevating mechanism of the harvester.

FIG. 12 is a plan view of a root cutting means of the harvester.

FIG. 13 is a side view of a sorting conveyor section of the harvester.

FIG. 14 is a rear view of a sorting conveyor unit of the harvester.

FIG. 15 is an explanatory side view of root cutting means of the harvester.

[Explanation of symbols]

 Reference Signs List 3 endless endless band 35 root cutting means 36 mud removing means 36a rotating brush 44 foliage cutting means 48 container (accommodating part) K root vegetable m spiral groove

Claims (4)

[Claims] 1. A harvester which operates to continuously pull out root vegetables vegetated in a field during running and feed the roots one after another into a storage unit, wherein the roots reach the storage unit until the roots reach the storage unit. 1. A harvester, comprising: a mud removing means for removing mud adhering to a main part which is easily driven and flexibly driven by power. 2. The foliage of root vegetables vegetated in a field is continuously pulled out while traveling by nipping and transporting the foliage of the root vegetables with a pair of left and right endless belts, and then the foliage of the root vegetables is cut off. In a harvester that operates to feed the roots one after another into the storage unit, the roots are rubbed with a power-driven rotary brush to remove mud attached to the roots until the roots are cut off the foliage. A harvester characterized by having a mud removing means. 3. The root vegetables are vegetated in a field, and are conveyed diagonally upward and rearward by a pair of left and right pinching endless belts, whereby the root vegetables are continuously pulled out during traveling, and then the root vegetables are drawn by the pinching endless belt. In the harvester, the tip of the root is cut off by the tip cutting means during transportation, and then the foliage of the root vegetable is cut off by the foliage cutting means, and the roots are operated to be fed one after another into the storage section. By the time the root reaches the root cutting means, a spiral groove around the center of rotation is formed by long and short brush bristles, and the center of rotation is directed in the front-rear direction at an inclination angle different from the nipping and conveying direction of the endless band, and is driven by power. A harvester provided with a mud removing means for rubbing the root of the root vegetable with a pair of left and right rotating brushes to remove mud attached to the root. 4. The method according to claim 1, wherein the nipping and conveying speed of the root and leaf portion of the root vegetable by the pair of left and right endless belts and the feeding speed of the root of the root vegetable by the spiral groove of the pair of right and left rotating brushes are substantially matched. Item 6. The harvester according to Item 3.