JP2000004629A - Harvester - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a harvester capable of carrying out efficient harvest without causing unintended breakage of the stem and leaf parts even if the stem and leaf parts of the root vegetables is withered by frost. SOLUTION: This harvester has right and left pair of endless belts 3 conveying stem and leaf parts of root vegetables planted in a field, in the obliquely rear upper direction, and acting so as to pull up the root parts, a right and left pair of guiding rods 45 for guiding the root parts of the root vegetables K conveyed by the endless belts 3 in the specific direction, and a stem and leaf-discharging device 43 for receiving the stem and leaf parts guided by the guiding rods 45 from the nipping endless belts 3 and conveying the stem and leaf parts in the specific direction. The convey-starting part (s) of the stem and leaf-discharging device 43 is arranged near to the nipping endless belts 3 and the root-guiding rods 45 so that the stem and leaf-discharging device 43 may hold the stem and leaf parts before the stem and leaf parts conveyed by the pair of the nipping endless belts 3 are strained by pulling between the nipping endless belts 3 and the root-guiding rods 45.

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 A pair of left and right endless belts which operate so as to pull out the roots of a root vegetable which is vegetated in a field while holding the stems and leaves of the root vegetables by a pair of left and right endless belts, and conveying the roots obliquely upward. There is already a harvester in which the foliage of the carrot thus extracted is cut off so that only the root is collected in the accommodation part.

As shown in FIG. 16, this harvester is provided with a root guide rod 45 extending rearward from the middle of the transportation of the nipping transportation means composed of a pair of left and right endless belts 3, and a position above the root guide rod 45. Foliage discharge device 43 and root guide rod 45
And a foliage cutting means 44 located at the rear part of the apparatus. Here, the root guide rod 45 includes a guide start end side part a inclined upward and rearward and a guide end side part a horizontally formed rearward.

[0004] In the process of being transported by these endless bands 3, the carrots whose foliage is sandwiched by the pair of endless belts 3 are sandwiched between the shoulders of the roots by a pair of left and right root guide rods 45. It is guided by the starting end side part a. In this state, as the transportation of the carrot by the endless band 3 proceeds, the holding portion of the foliage by the endless band 3 and the root guide rod 4
The distance of the root to the shoulder guided to 5 is increased.

When the carrots reach the vicinity of the transport starting end s of the foliage discharging device 43 by the transport of the endless band 3, the foliage thereof is given a tensile force by the tension between the endless band 3 and the root guide rod 45. It is in a tensioned state, and the shoulder at the root is in pressure contact with the root guide rod 45. Forage discharge device 4
3 inherits the foliage in this state, and further conveys it horizontally rearward along the root guide rod 45.

In the course of transport by the foliage discharging device 43, the rotary blade 44a of the foliage cutting means 44 cuts a fixed height position of the foliage and drops the root thereof. The foliage after being separated from the root is conveyed to the discharge position by the foliage discharge device 43.

[0007]

When the ginseng is harvested by the conventional harvester described above, if the foliage of the ginseng is frost-dried and the tensile strength is weakened, the transport start end s of the foliage discharging device 43 removes the foliage. Before gripping, the endless band 3 and the root guide rod 4
The foliage may be torn and the root may fall due to the pulling with 5.

[0008] The roots that have fallen in this way cause extra work, which increases the burden on the operator and results in loss of harvest. An object of the present invention is to provide a harvester capable of solving such a problem.

[0009]

Means for Solving the Problems In order to achieve the above object, according to the first invention of the present application, the root portion is pulled out while holding the foliage portion of the root vegetable vegetated in the field and conveying it diagonally rearward and upward. And a pair of left and right root guide rods for guiding the roots of root vegetables being conveyed by the clamp endless belt in a specific direction at an angle smaller than the transport angle of the clamp endless belt, A harvester equipped with a foliage discharge device that inherits the foliage of root vegetables guided by the rod from the endless band above the guide rod and transports the foliage in the specific direction. Before the foliage being conveyed is tensioned by the tension between the nipping endless belt and the root guide rod, the transport start end of the foliage discharging device is held so that the foliage discharging device grips the foliage. And the root guide rod To contact.

With this arrangement, the foliage discharging device grips the foliage before the foliage is torn, and the foliage gripped in this manner grips a portion near the root having relatively high tensile strength. Therefore, the root side is not torn until reaching the foliage cutting means, and the cutting processing is reliably performed by the foliage cutting means. Note that the foliage transported by the foliage discharging device may be torn between the foliage discharging device and the endless band, but such a phenomenon does not hinder the harvest of root vegetables.

The above-mentioned invention is embodied as follows. That is,
The root guide rod and the foliage ejection device are associated with each other such that the vertical distance between them gradually increases toward the end of the guide rod. As a result, the foliage gripped by the foliage discharging device is pulled and tensioned by the foliage discharging device and the root guide rod as the transport progresses. As a result, the shoulder of the root portion is brought into pressure contact with the lower surface of the root guide rod.

In order to achieve the same object as the above invention, the second invention of the present application is as follows. That is, while holding the foliage of the root vegetables vegetated in the field and transporting diagonally and upward,
A pair of left and right endless belts that operate so as to pull out the roots, and a pair of left and right root guides that guide the roots of root vegetables conveyed by the endless bands in a specific direction at a smaller angle than the conveying angle of the endless band. In a harvester including a rod, and a foliage discharging device that inherits the foliage of root vegetables guided by the guide rod from the endless band above the guide rod and transports the foliage in the specific direction. The rod is bent into a substantially O-shape consisting of a guide start end side portion and a guide end side portion, and the guide start end side portion is formed with an upward slope smaller than the conveying angle of the sandwiched endless belt, and the guide end side portion is formed. And the conveying direction of the foliage discharging device is substantially parallel to the guide start end side portion, and the conveying start end of the discharge device is located between the sandwiching endless band and the guide start end side portion. position Was a structure in which close to said guide starting side edge portion and the sandwiching endless band. This also
The same operation as the first invention can be obtained.

[0013] In any of the above inventions, the transport start end of the foliage discharging device is configured to grip the foliage within a range of 10 cm or less from the root. In this way, even a ginseng having a frost-deprived foliage can be reliably processed without a phenomenon such that the foliage is torn under the gripping point of the foliage discharging device. It will be.

[0014]

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 side where the root vegetables K have not been excavated (the lower side in FIG. 2).
3 are provided, and specifically, are as follows.

That is, a support frame 10 is supported by a work unit rotation fulcrum 9 at a position near the rear of the traveling machine 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 FIG. 2 and FIG. 4, a pair of left and right endless belts 3 and 3 hold a conveying line H of the foliage of the root vegetable K from the outer edge of the traveling crawler 2a on the unexcavated 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.

In the lower end of the pair of left and right endless belts 3 and 3 of the above-mentioned holding and conveying means, the foliage of the root vegetable K to be extracted is located at the lower part in front of the side where the root vegetable K 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 end is fixed to a rotatably driven endless belt 64 and which is arranged at predetermined intervals. However, on the front side in the traveling direction of the traveling body 1, it is configured to move upward from a field scene 19 shown in FIG. 9 on a substantially vertical plane.

A raising device 1 for raising the foliage of the root vegetable K to be withdrawn is provided at a lower portion in front of the excavated raising side of the root vegetable K in the pair of left and right endless belts 3 and 3.
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 which is 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 as a lifting link mechanism for raising and lowering the excavating blade 25, 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, a forward pipe frame 3 is provided at 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 front of the working unit rotation fulcrum 9, and below a substantially middle portion in the longitudinal direction of the pair of left and right endless belts 3, 3. 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 via 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 tip cutting means 3 via a pulley fixed to the input shaft 353 held by the means 35
5 from the cutting means 35 to the mud removing means 36
Is transmitted to the user.

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 43a arranged below the rear wheels 12 for transporting the foliage of the root vegetables K rearward. , 43b 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, below the rear wheels 12, the roots of the root vegetables K are guided by the shoulders of the roots in the rearward direction, so that the foliage is passed to the foliage discharging device 43. A pair of left and right root guide rods 45 are provided. And behind the foliage discharge device 43, FIG.
As shown in FIG. 7, a curved guide plate g is projected rearward from the rear transmission case.

Below the cutting means 44, a sorting conveyor is provided for receiving the root of the root vegetable K from which the foliage has been cut off and transporting it to the side of the rear end of the traveling machine 1 (the excavation side of the root vegetable K). A pulley 462 of an input portion 46a from a pulley 461 fixed to an input shaft 39 to a sorting conveyor 46 via a belt 47b as shown in FIG.
Power is transmitted to the vehicle.

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 container base 49 in the front and rear longitudinal direction on which a container 48 for receiving and accumulating good root vegetables K is placed. The container table 49 has a base end connected to the side surface of the traveling machine body 1 via a hinge so as to be vertically rotatable. The container table 49 is turned upward when not working, and is held substantially horizontally when working. ing.

The root of the root vegetable K cut and dropped by the foliage cutting means 44 is changed so that the root portion of the root vegetable K is laid down so as not to be stuck in the gap between the adjacent slats 46b on the sorting conveyor 46, and the falling root portion is changed. 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 up and down integrally about the working unit rotation fulcrum 9, and project forward from their front sides as shown in FIGS. The support rod 51 is supported on the field scene 19 by a front contact wheel 52 attached to the front end of the support rod 51.

During non-operation or running 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 for holding these parts in the raised position is formed.

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 turning operation, the upper surface of the 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 endless members 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 sandwiching endless belt 3 are disposed. A waste container 77 for accommodating defective root vegetables is placed through the container, and the defective root vegetables selected by the operator on the sorting conveyor 46 by the waste container 7.
7, the soil falling from the root vegetable K, which is pinched and conveyed by the clamping endless band 3, covers the working part rotation fulcrum 9 and is stacked on the work part rotation fulcrum 9 to inhibit this rotation. A fulcrum cover 78 in the form of a roof is provided to prevent this.

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 endless 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 rear surface 79 of the cover is formed by a sieving line 79a, and only the mud is sieved below the rear surface 79 of the cover, and the mud accumulates on the rear surface 79 of the cover to inhibit the flow of the root vegetables. It is configured to prevent such a situation.

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, a cushioning material 81 made of a rubber plate is arranged in a predetermined range, 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, the features of the harvester will be described in more detail. As shown in FIG. 1 and FIG. 13, each root guide rod 45 is bent in a letter shape in a side view including a guide start end side part a and a guide end side part b, and the guide start end side part a
Is inclined upward at a smaller angle than the transport angle of the endless band 3, and the guide end side portion b is inclined downward.

The foliage discharging device 43 makes the conveying direction substantially parallel to the guide start end side part a, and positions the transfer start end s between the pinch endless band 3 and the guide start end side part b so that the clamp endless band 3 is located. And the guide start end side portion a.

At this time, the fact that the conveying direction of the foliage discharging device 43 is substantially parallel to the guide start side portion a makes it easy to bring the conveying start end s of the foliage discharging device 43 close to the nipping and conveying line H (see FIG. 2). Eggplant. The transport start end s of the foliage discharging device 43 is configured to grip the foliage within a range of 10 cm or less from the root.

Further, as shown in FIGS. 13 and 14, the foliage cutting means 44 is provided so that its cut surface is parallel to the guide terminal side b of the root guide rod 45, and is rotated by operating the rotary handle e. The blades 44a, 44a are configured so as to be translated up and down via a parallel link 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 aligned 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 undigged side.

As the traveling body 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 root guide rod 45. Thereafter, the pinching endless belt 3 further conveys the foliage portion obliquely rearward and upward, while the guide start end side portion a of the root portion guide rod 45 approaches the left and right sides of the shoulder portion of the root portion, and conveys this root portion to the nipping and conveying line H. It is guided obliquely rearward and upward at an angle smaller than the inclination angle of

Accordingly, as the foliage is transported by the endless endless belt 3, the tension is not yet increased but tends to be increased. At this time, since the guide start end side a is inclined upward, the tendency of the foliage is not sharply increased.

The foliage guided in this way eventually reaches the transport starting end s of the foliage discharging device 43, but the foliage at this time is in a state before being tensioned by the endless endless band 3 and the root guide rod 45. Therefore, even a foliage-deprived foliage is not torn. When the foliage is further conveyed by the nipping endless belt 3, the front ends of the pair of endless belts 43b, 43b, which constitute the conveyance start end s of the foliage discharging device 43, are moved from the root shoulder by 10 degrees.
cm or less of the foliage portion.

Here, the fact that the transport start end s of the foliage discharge device 43 is close to the nipping transport line H means that the transport start end s of the foliage discharge device 43 before the foliage is tensioned.
Makes it possible to pinch the foliage, and the fact that the transport start end s of the foliage discharge device 43 is close to the guide start end side a of the root guide rod 45 is within a range of 10 cm or less from the root shoulder. The foliage can be clamped by the transport start end s of the foliage discharging device 43.

Thereafter, the foliage discharge device 43 conveys the foliage sandwiched between the conveyance start ends s to the top of the root guide rod 45 obliquely rearward and upward. During this transport, the foliage discharging device 43
And the leading end side a of the root guide rod 45 are parallel to each other, so that the degree of tension of the conveyed foliage hardly changes. Therefore, the foliage is torn even if the foliage is withered. And smoothly moved to the apex.

After the foliage reaches the apex in this way, the vertical distance between the foliage discharge device 43 and the guide terminal side portion b of the root guide rod 45 increases as going backward. In the foliage transported by the foliage discharge device 43, the tension between the foliage discharge device 43 and the guide end side portion b occurs as the transport progresses, and the tension increases. When the root reaches the transport end of the root guide rod 45, the shoulder is securely pressed against the lower surface of the root guide rod 45.

In this press-contact state, a considerable tensile force acts on the foliage, but the foliage discharge device 43 sandwiches the foliage near the root, which is a relatively strong part.
Even if the foliage is defrosted, the foliage discharge device 43
It is not torn below. Under the above pressed state, the root vegetable K is a pair of left and right rotary blades 44 of the foliage cutting device 44.
a, 44a stably cut between the root and the foliage.

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

On the other hand, the foliage separated from the root is continuously conveyed further rearward by the foliage discharge device 43, and is discharged to the field scene 19 from the conveyance end. At this time, the foliage is guided by the guide plate g so as not to fall on the unexcavated field scene 19.

[0061]

According to the present invention as described above, even if the foliage of the root vegetables to be harvested is frost-killed, unintended foliage of the foliage during the transportation from the nipping endless belt to the foliage discharging device is achieved. Does not occur, the root vegetables reach the foliage cutting means without fail, and the foliage is cut off, so that efficient harvesting can be performed.

According to the second or fourth aspect of the present invention, even if the root vegetable has a frost-killed foliage, the foliage cutting means can cut the predetermined height position from the root of the root vegetable accurately and stably.

[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.

FIG. 16 is a side view showing a conventional example.

[Explanation of symbols]

 3 Endless belt 45 Nut guide rod 43 Foliage discharge device K Root vegetable a Guide start end side b Guide end side s Transport start end

Claims (4)

[Claims] 1. A pair of left and right endless belts that operate to pull out the roots of a root vegetable that is vegetated in a field while holding the foliage while holding the foliage, and conveyed by the endless band. A pair of left and right root guide rods for guiding the root of the root vegetable in a specific direction at an angle smaller than the transport angle of the endless belt, and the foliage of the root vegetable guided by this guide rod above the guide rod. In a harvester having a foliage discharge device that is inherited from the sandwiched endless band and is conveyed in the specific direction, the foliage conveyed by the pair of sandwiched endless bands is formed by the sandwiched endless band and the root guide rod. A harvester characterized in that, before being tensioned by pulling, the transport start end of the foliage discharging device is brought close to the endless band and the root guide rod so that the foliage discharging device grips the foliage. . 2. The method according to claim 1, wherein the root guide rod and the foliage discharging device are associated with each other such that the vertical distance therebetween gradually increases toward the end of the root guide rod.
Harvester described. 3. A pair of left and right endless belts which operate so as to pull out the roots while nipping and transporting the foliage of root vegetables vegetated in a field obliquely and upward, and conveyed by the endless nipping belts. A pair of left and right root guide rods for guiding the root of the root vegetable in a specific direction at an angle smaller than the transport angle of the endless belt, and the foliage of the root vegetable guided by this guide rod above the guide rod. In a harvester having a foliage discharge device that inherits from the sandwiched endless belt and conveys the product in the specific direction, the root guide rod is bent into a substantially rectangular shape including a guide start end side portion and a guide end side portion, and the guide is bent. The starting end side is inclined upward at a smaller angle than the conveying angle of the endless band, and the guide terminal side is inclined downward.On the other hand, the conveying direction of the foliage discharging device is generally set to the guiding starting end side. Make it parallel A transfer start end portion of the discharge device is positioned between the endless end band and the guide start end side portion so as to be close to the endless end portion and the guide start end side portion. . 4. The harvester according to claim 1, wherein the transport start end of the foliage discharging device is configured to grip a foliage within a range of 10 cm or less from a root shoulder.