JPH1175460A - Machine for harvesting root vegetable - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a root vegetable harvester facilitating works for harvesting the root vegetables. SOLUTION: A travel frame 1 is provided with a digging blade 25 for vibrating a position below the root portion of a root vegetable K vegetated in a field and digging up the field and with a pair of right and left nipping endless belts 3, 3 whose tip ends are disposed in proximity with the surface of the field on the front side of the travel direction, whose rear sides are disposed in such a backward inclined posture as raised on the rear side of the travel direction, and which are used for nipping the foliage portions of the root vegetables K in the field and pulling out and carrying the root vegetables above a travel crawler 2a on the non-dug side. The front end of an operation column 4 disposed on the dug side of the travel frame 1 and the tip end of a pair of the right and left nipping endless belts 3, 3 are disposed on the approximately same line on the side inner from the travel crawler 2b on the dug side. Outside surfaces such as an operation section step 4a are disposed from the side surface of the travel crawler 2b on the dug side to the lateral inside of the travel frame.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

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

[0002]

2. Description of the Related Art As a structure of a conventionally known root vegetable harvesting machine,
In Japanese Patent Application Laid-Open No. 7-95806, a pair of right and left endless portions are provided from a lower front portion near one side (undigging side) of a traveling body traveling by a pair of left and right traveling crawlers mounted on the traveling body from an upper rear portion of the traveling body. A sub-soiler having a digging blade for digging under a root vegetable such as a carrot planted in a field by vibration is provided below a front part of the endless band, and the pair of left and right endless endless belts is provided. At the rear end of the band, a pair of left and right rotary cutters for cutting between the foliage and root of the carrot to be conveyed are arranged, and at the rear end of the traveling machine body, the root of the cut and fallen ginseng There is disclosed a device provided with a container mounting table for receiving the information.

[0003] This publication also discloses that a driving unit (driving operation column) and a driving seat behind the driving unit are arranged in an upper portion of a traveling machine body on the excavated side.

[0004]

However, in the prior art, the outer surfaces of the driving section and the driver's seat behind the driving section are located on the excavated side more than the outer surfaces of the excavated traveling crawler, and Since the front end of the driving section in front of the driver's seat is located considerably behind the front end (front end) of the pair of left and right endless bands in plan view, the operator in the driver's seat can read the pair of left and right sides. The front end of the pinched endless belt and its vicinity, that is, it is not possible to observe the extraction start site of root vegetables, and it becomes difficult to steer the traveling machine along the row of root vegetables vegetated in the field,
There was a problem that even if there was a failure in pulling out or transporting the root vegetables, it was not noticed.

In the above arrangement, the distance between the middle of the pair of left and right endless belts, the driving unit (driving operation column), and the driving unit step between the driving seat and the driving seat behind the driving unit, in the width direction of the traveling machine body. Therefore, even if an operator stands at the operation unit step, it is difficult to reach the middle part of the pair of left and right endless belts, so that it is difficult to remove clogging and cleaning of root vegetables in those parts. was there.

The present invention has been made in order to solve these problems, and an object of the present invention is to provide a root vegetable harvesting machine with good workability.

[0007]

In order to achieve the above object, a root vegetable harvesting machine according to the present invention according to the first aspect of the present invention is to plant vegetation on a field near a side of a traveling body having a pair of right and left traveling crawlers. A subsoiler for digging by oscillating below the root of the root vegetable, and placing the tip at the front side in the traveling direction close to the field scene, and the rear inclined side so that the rear end side is upward at the rear side in the traveling direction A root vegetable harvesting machine having a pair of left and right endless belts for nipping and transporting roots and foliage of root vegetables in a field, and a front end of an operating unit disposed on the excavated and raised side of the traveling machine body in plan view. And the tips of the pair of left and right endless belts are arranged substantially on the same line, and the outer side surface of the driving unit is arranged inside the width direction of the traveling body from the side surface of the traveling crawler on the excavated side. .

[0008] The invention described in claim 2 is the first invention.
In the root vegetable harvesting machine described in (1), a cover body that covers an outer surface and an upper surface of the traveling crawler on the excavated and raised side is also used as an auxiliary step.

[0009]

Next, embodiments of the present invention will be described. Fig. 1 is a side view of the root crop harvester, Fig. 2
Is a schematic plan view, FIG. 3 is a front view, and FIG. 4 is a plan view of a power transmission system. 2, a pair of left and right traveling crawlers 2a and 2b are arranged below the traveling body 1, and on the traveling body 1, the root digging of root vegetables K such as carrots is performed (upward in FIG. A control column 4 as a driving unit from the front end, a driving unit step 4a for the operator to get on and off, a driving seat 5 on which the operator sits, and an engine 6 are arranged inside the outer edge of the traveling crawler 2b (right side). A transmission 7 is disposed at the rear end side of the traveling body 1.
From the pair of left and right traveling crawlers 2a and 2b to drive wheels 8 (see FIG. 1) disposed at the rear ends.

[0010] The starting end wheel 1 mounted on a support frame 10 rotatably supported up and down via a bracket 10a at a working part rotation fulcrum 9 near the rear of the traveling body 1.
The pair of left and right endless belts 3 and 3 are wound around the rear end wheels 1 and 11 and the rear end wheels 12 and 12, respectively. It is supported by. As shown in FIGS. 3 and 4, the intermediate wheel 13 is arranged such that a plurality of pairs on the front end sides of the left and right endless end bands 3 are opposed to each other. By disposing in a zigzag shape (where the opposing intermediate wheel 13 is not disposed), the pinching force of the foliage is not weakened in the middle of the pair of pinching endless bands 3. Since a rotational driving force is input to the rear end wheels 12, 12 as described later, a pair of rear end wheels 12, 12, as shown in FIG.
The outer peripheral surfaces of the pair of nipped endless belts 3, 3 are prevented from bending at the moment when the foliage is released by being pinched due to the difference in the texture of the nipped endless bands 3, 3 wound around 12. So that the rear wheels 1
2, 12 are spaced apart.

As shown in FIG. 6, the support brackets 10a, 10a are extended inward from the lower surfaces of the support frames 10, 10, which are a pair of left and right longitudinals, and each of the support brackets 10a is provided with a suspension bolt 13a via a suspension bolt 13a. To suspend the intermediate wheel 13. Accordingly, the work of replacing the intermediate wheel 13 and the endless endless belt 3 is easy, and the root vegetables K and the foliage thereof are not caught by the support bracket 10a, so that a smooth holding conveyance can be executed.

Further, as shown in FIG. 7, a rear end wheel 12 is fixedly supported at the rear end of the auxiliary support frame 10b disposed on the inner diameter side of each endless band 3, while the auxiliary support frame 10b is A second shaft 10e is pivotally connected to a first shaft 10d protruding forward via a biasing spring 10c so as to be able to turn left and right, and a leading end wheel 1 is attached to a front end of the second shaft 10e.
1 and the scraping wheel 11b are rotatably mounted and supported. Thereby, the tension can be applied to each of the endless belts 3 independently of the left and right sides, and the distance between the left and right starting end wheels 11 and the scraping wheel 11b is automatically changed and adjusted according to the thickness of the foliage of the root vegetables K. As a result, it is possible to always provide an appropriate holding force.

Further, a pair of left and right endless belts 3 on the left and right sides of the traveling crawler 2a on the unexcavated side of the root vegetable K (the lower side in FIG. 2, the traveling crawler 2a in the traveling direction).
3 are arranged so that at least the front end side of the holding / conveying means 3 is located. In the first embodiment, as shown in FIG. 2 and FIG. 4, a traveling crawler on the unexcavated side of the root vegetable K is formed by a nipping and conveying line H of the foliage of the root vegetable K by a pair of left and right clamping endless belts 3, 3. It is arranged outside the outer edge of 2a so as to be parallel to the traveling direction of the traveling body 1 in plan view. By providing the large-diameter scraping wheels 11b, 11b that rotate integrally with the start-end wheels 11, 11, a starting portion of the nipping conveyance is configured.

As shown in FIG. 2, the front end of the steering column 4 as the driving unit is substantially the same as the front end of the pair of left and right endless belts 3 and 3 (starting part of the nipping conveyance) in plan view. It is arranged so that it may be on the line, and at least the operator sitting on the driver's seat 5 can see the vicinity of the start portion of the nipping conveyance from obliquely rearward and above.

As shown in FIGS. 2 and 3, the outer surface 4b of the driving section (including the driving section step 4a and the driver's seat 5) runs more than the outer surface of the traveling crawler 2b on the excavated side. It is arranged so as to be inside the body 1 in the width direction. In other words, the steering column 4, the driving unit step 4 a, and the driving seat 5 are arranged so as to approach the inner surface of the middle part in the front-rear direction of the pair of left and right endless belts 3, 3, and sit on the driving seat 5. Or driving section step 4a
The hand of the standing operator can be easily reached from the upper side of the middle part in the front-rear direction of the endless bands 3, 3.

Further, as shown in FIGS. 2 and 3, a cover body 65 covering the outer side surface, the upper surface and the front end surface of the traveling crawler 2b on the excavated side is attached to the driving section (the driving section step 4a and the driving seat 5). ) So that the foot of the operator does not directly contact the traveling crawler to be driven, so that it is safe.
The cover body 65 can also serve as an auxiliary step when the operator gets on and off the vehicle.

Of the pair of left and right endless belts 3, 3,
At the lower part in front of the undigged root vegetables K, the foliage of the root vegetables K to be extracted is placed, and on the undigged root vegetables K which are not dug.
Divider 1 for separating so that it does not get entangled with foliage
4 is provided. The divider 14 has a weeding tine 15 having a plurality of base ends attached to a rotatably driven endless belt at a predetermined interval. The weeding tine 15 faces upward from the field scene 19 in a substantially vertical plane on the front side in the traveling direction of the traveling machine 1. It is configured to move to.

In the lower end of the pair of left and right endless endless belts 3 and 3 on the front side of the excavated and raised side of the root vegetable K, the foliage of the root vegetable K to be pulled out is scraped in the direction of the nipping transport line H. A foliage scraping device 16 is arranged. In the foliage scraping device 16, a plurality of scraping tines 17 each having a base end attached to a rotating endless belt 16 a at a predetermined interval are provided on the front side of the starting wheel 11 with the weeding tines 15 in the divider 14. When the raked tine 17 is arranged substantially orthogonally and moves upward from the field scene 19, the tip of the raked tine 17 is a side cover portion 14a that is the non-working side of the weeding tine 15 in the divider 14. They are arranged to face each other.

As described above, the weeding tine 15 moving upward in a substantially vertical plane of the divider 14 and the foliage scraping device 16 having the scraping tine 17 orthogonal to the side cover portion 14a of the divider 14 are provided. As a result, the left and right sides of the hanging foliage of the root vegetables K to be dug can be lifted upward, so that the nipping and conveying means including the pair of right and left nipping endless bands 3 and 3 wound around the starting wheels 11 and 11 respectively. At the start portion, the foliage can be reliably held. As shown in FIG. 8, the base of the scraping tine 17 protruding from the outer periphery of the belt (endless belt) 16a in the foliage scraping device 16 has a receding angle β with respect to the scraping direction, while protruding from the base. The engaging portion (tip) is an endless belt 1
It is formed so as to be perpendicular to the outer peripheral surface of 6a, so that the foliage raked by the rake tine 17 does not easily fall off from the engaging portion (tip portion) side.

As shown in FIG. 5, the endless belt 16a and the scraping tine 17 in the foliage scraping device 16 are used.
Of the base case 16b for covering the base of the rake tine 17 (the side cover 1 of the divider 14).
4a) and the side cover 1
The position of the starting portion of the nip-conveyance, which is at least the front end side (between the starting wheels 11, 11) of the nip-conveying means by the pair of left and right endless belts 3, 3 is located at a position half of the gap dimension W between the nip-feed end 4 and the right-end pair. (Or the holding and conveying line H) so as to be displaced by the dimension d toward the undigged side. In other words, in the front view of the traveling machine body shown in FIG. 5, by arranging the nipping transport line H on the side closer to the base of the rake tine 17 on the rake action side, the lower end of the foliage scraping device 16 (field scene) (A part close to), an inactive area (radius outside a region where the tip of the rake tine 17 moves) protruding from a locus (a rake action area) where the rake tine 17 moves, and is surrounded by the side cover portion 14a. Area), it is easy to cause the foliage of root vegetables such as carrots to hang down in the field scene 19 by the scraping tine 17, and the pair of left and right endless belts 3, 3 Nipping conveyance can be executed reliably. Furthermore, if the length of the scraping tine 17 is increased, the gap size between the divider 14 and the side cover portion 14a is increased, so that the position of the root vegetable K vegetated in the field can be easily confirmed.

Note that, as shown in FIG.
When the guide plate 56 protruding at the lower end side of the side surface cover portion 14a is disposed in the inactive area, the guide plate 56 in the inactive area hangs down on the field scene 19 as the traveling body 1 advances. The foliage is guided (guided) to the action area by the raking tine 17, and the foliage can be more reliably nipped and transported by the pair of left and right nipping endless belts 3, 3.

Further, the rotation fulcrums 20 and 21 on the base end side of the upper link 22 and the lower link 23 as an elevating link mechanism for raising and lowering the subsoiler are located forward of the working part rotation fulcrum 9. A vertical support rod 24 is connected to the distal ends of upper links 22 and lower links 23, which are arranged on the inner side surface of the traveling body and are capable of turning up and down around the vertical turning fulcrums 20 and 21, respectively. A digging blade 25 is fixed to the lower end of the vertical support rod 24.

As shown in FIGS. 1 and 2, a pulley 2 fixed to the input shaft 20a of the upper pivot 20 is used.
8 and the output pulley 27 of the engine 6
To rotate the input shaft 20a.
The base end of the upper link 22 is connected via an eccentric boss (not shown) fitted to a, and the upper link 22 is vertically driven to vibrate. Thereby, the excavating blade 25 inserted from the field scene 19 is vibrated up and down and / or back and forth below the root of the root vegetable K so that the root of the root vegetable K can be easily pulled out as the traveling body 1 moves forward. It is configured.

Further, the parallel upper and lower links 22, 23 are configured to be moved up and down by a hydraulic cylinder 26 mounted between the base end of the lower link 23 and the traveling machine body 1. Further, as can be understood with reference to FIGS. 2 and 4, in plan view, behind the foliage raking device 16, a digging and raising blade 25 of a subsoiler, a vertical support rod 24 thereof, and the vertical support rod 24 are provided. An elevating link mechanism (up and down links 22, 23) for elevating is arranged so as to overlap the foliage raking device 16 in a plan view, and as shown in FIG. , The vertical support rod 24 and the vertical support rod 2
Lifting mechanism (up and down link 22,
23) are arranged so as not to overlap with the foliage scraping device 16.

Further, as shown in FIGS. 2 and 4, the lifting link mechanism (the vertical link 22,
23) overlaps the traveling crawler 2a on the undigged side in plan view, but as shown in FIG.
During the excavation work located in the field scene 19, the lower link 23 is arranged so as not to interfere with the traveling crawler 2a when the lifting link is lowered.

As shown in FIGS. 1, 2 and 4,
A forward-facing pipe frame 31 is connected to the distal end of a pipe-shaped power transmission horizontal frame 30 that is rotatably provided on a concentric axis with the working unit rotating fulcrum 9. Is connected to a transmission pipe 32 for scraping the foliage extending toward the excavated and raised side of the root vegetable K above the middle part in the longitudinal direction of the pair of left and right endless belts 3, 3. A divider transmission case 34 is connected to the upper part of the divider 14 via a transmission case 33 extending forward from the excavation side end. The working unit is rotated from an output shaft pulley 27 of the engine 6 to a belt 29, a pulley 28, and a pulley 37 fixed to an input shaft 20 a coaxial with the upper rotation fulcrum 20 via an endless belt 38 such as a belt. The input shaft 3 that is coaxial with the fulcrum 9 and is inserted into the power transmission lateral frame 30
9, the power is transmitted to a pulley 40 fixed to the protruding end of the transmission pipe 9, a forward pipe frame 31, a transmission pipe 32 for scraping foliage, a transmission case 33, and a transmission case 3 for a divider.
The power is transmitted to the foliage scraping device 16 and the divider 14 via a transmission mechanism such as a transmission shaft in 4.

By providing a plurality of detachable attachment points between the lower part of the case of the divider 14 and the support frame 10 in the circumferential direction centering on the working unit rotation fulcrum 9, the divider 14 can be attached to the forward pipe frame. Since it is possible to rotate around the working unit rotation fulcrum 9 integrally with the divider 31 and the transmission case 34 for the divider, the mounting angle of the divider 14 with respect to the support frame 10 can be extremely easily changed and adjusted.

On the other hand, a PTO output shaft 36 which is inputted from the engine 6 to the traveling mission 7 and has a rotational speed synchronized with the vehicle speed.
From the pulley (not shown), which is rotatable concentrically with the input shaft 39 which is the same axis as the working unit rotation fulcrum 9 via the chain, and rotates from the pulley which rotates integrally therewith. Power is transmitted to a rear transmission case 42 through a pair 41, and is transmitted to an input portion coaxial with both rear end wheels 12 of the pair of left and right endless belts 3 and 3 so that the two endless belts 3 and 3 are held.
And a lower part of the rear end wheels 12 and a pair of left and right endless transport belts 43a and 43b for transporting the foliage of the root vegetable K horizontally and rearward. The rotational force is transmitted to a side pulley 60 (or a chain sprocket) of a transmission case 44b of a cutting means 44 comprising a pair of rotating blades 43 and a pair of left and right horizontally rotating rotary blades 44a.

When the transmission case 44b is mounted on the support frame 10 or the like, a bracket 62 projecting downward from the transmission case 44b is rotatably supported on the frame 63 via a support shaft 64, and Support shaft 64
When the rotating blades 44a, 44a are turned so that the side faces downward (see the two-dot chain line in FIG. 11), the belt (chain) wound around the side pulley 60 is set to the loose side. By doing so, maintenance work such as replacement of the rotary blade 44a can be extremely easily performed.

The transmission case 44b has the structure shown in FIG.
As shown in FIG. 11, a pair of left and right arm cases 44c, 44c each including a shaft for driving the left and right rotary blades 44a, 44a and a bevel gear protrude forward at an interval wider than the thickness of the root vegetables K to be sampled. A buffer plate 61 such as a sponge plate is arranged so as to surround the inner surfaces of the transmission case 44b and the two-arm cases 44c, 44c, so that the root portion of the cut root vegetables K does not directly collide with the hard case.

Below the rear wheels 12, a pair of left and right guide rods for guiding the roots of the root vegetables K to the foliage discharge device 43 by guiding the upper ends of the roots of the root vegetables K in the horizontal rearward direction. 45 are arranged. As shown in FIGS. 9 and 11, the guide rod 45 has a gentle arc-shaped guiding portion extending from the lower surface of the holding endless band 3 inclined forward to the lower surface of the horizontal endless transport band 43b in the foliage discharging device 43. It has. Thereby, the upper end (shoulder portion) of the root portion of the root vegetable K lifted toward the rear of the traveling machine body 1 along the nipping transport line of the pair of nipping endless belts 3 and 3 is the guide rod 4.
5 is constrained at the bottom arc, moves substantially horizontally rearward,
The foliage above it is moved to the rear of the traveling machine 1 while being pinched by a pair of left and right foliage discharge devices 43 and upper and lower transport bands 43a and 43b. In the meantime, the portion between the root portion and the foliage portion of the root vegetable K is cut by the pair of left and right rotary blades 44a, 44a of the cutting means 44. In this case, since the posture of the upper end (shoulder portion) of the root of the root vegetable K to be guided does not become oblique, but follows the horizontal rotating blades 44a, 44a, the foliage is not obliquely cut.

Below the cutting means 44, sorting for receiving the root portion of the root vegetable K from which the foliage has been cut off and separating it and transporting it to the side of the rear end of the traveling machine 1 (the side where the root vegetable K has been dug up). A conveyor 46 is provided, and an input unit 4 from the PTO output shaft 36 of the transmission 7 to the sorting conveyor 46 via pulleys and chains 47a and 47b.
6a. By using a bevel gear or a worm gear in the input portion 46a, the transmission portion can be formed compact.

The sorting conveyor 46 has a large number of rod-like slats 46b stretched at a fixed interval between a pair of endless chains. Defective products are selected from the root vegetables K on the conveyor 46. At the discharge end of the sorting conveyor 46, there is a front and rear longitudinal container table 49 on which a container 48 for receiving and storing non-defective root vegetables K is placed. The base of the container table 49 is connected to the side surface of the traveling body 1 via a hinge so as to be vertically rotatable. When the container table 49 is not working, it rotates upward, and the container table 49 is substantially horizontal during the work. The posture is held.

The root of the root vegetable K which is cut and dropped by the cutting means 44 is changed in posture so that the root of the root vegetable K is not stabbed into the gap between the adjacent slats 46b of the sorting conveyor 46, and the falling root is changed. A guide body 50 made of a sponge-like cushioning material or the like is provided above the slat 46b to prevent a direct collision with the hard slat 46b made of metal or the like.

Further, as described above, the pair of left and right endless belts 3 and 3, the foliage scraping device 16 and the divider 14 are provided.
The frames of each device are connected to each other so as to rotate up and down integrally about the working unit rotation fulcrum 9, and the support rod 51 protrudes forward from the front side thereof. It is supported against the field scene 19 by the attached grounding front wheel 52. When not working or traveling on the road, the excavator blade 25, the pair of left and right endless belts 3,
3. In order to keep the lower ends of the foliage scraping device 16 and the divider 14 at the raised position so as not to interfere with the ground, when the hydraulic cylinder 26 is driven, the parallel vertical links 22, The front end side of 23 rotates upward. At this time, as shown in FIG. 1 and FIG. 2, the upper surface of the rotatable roller 53 for lifting provided on the side surface of the lower link 23 is located on the lower surface side of the support frame 10 of the pair of sandwiching endless bands 3, 3. If it is configured so as to move along the lower surface of the provided guide rail 54 having a “F” shape in side view, the endless band that is pinched together with the excavating blade 25 by the operation of the piston rod projecting movement of one hydraulic cylinder 26. 3,3,
The lower end of the foliage scraping device 16 and the divider 14 can be integrally lifted greatly above the field scene 19.

The cross section of the guide rail 54 is
If it is formed in a downward U-shape, the upper surface (upper side of the circumferential surface) of the roller 53 abuts on the upper guide surface of the guide rail 54 when the elevating link mechanism is raised, so that the nipping endless belt 3,
3. The lower ends of the foliage scraping device 16 and the divider 14 can be integrally lifted significantly above the field scene 19, and the left and right side surfaces of the roller 53 are restrained by the left and right side guide surfaces of the U-shaped guide rail 54. Therefore, the supporting frame 10 and the endless belts 3 and 3, and the foliage scraping device 16
Even if the divider 14 swings in the width direction of the traveling body 1 or the traveling crawler, the rollers 53 and the guide rails 54 do not come off.

The portion of the guide rail 54 having a large downward inclination angle disposed on the front side of the traveling body 1 belongs to a range in which the depth of the digging blade 25 that dives into the soil can be adjusted to be large or small. Therefore, even if the lifting link mechanism vibrates up and down, the roller 53 does not interfere with the upper guide surface of the guide rail 54. On the other hand, the portion of the guide rail 54 having a small downward inclination angle extending to the rear side of the traveling body 1 is the endless belts 3 and 3 and the foliage scraping device 16.
And the lower end of the divider 14 is largely lifted above the field scene 19.

By forming the cross section of the guide rail 54 into a U-shape in a horizontal direction, the upper and lower sides of the circumferential surface of the roller 53 are surrounded by upper and lower guide surfaces of the guide rail 54, and both right and left sides of the guide rail 54 are formed. The left and right sides of the roller 53 may be constrained by the guide surface. Next, the harvesting work of the root vegetable K with the above configuration will be described. In the embodiment, root vegetables K such as carrots vegetated in a row in a field are harvested row by row. The operator sits on the driver's seat 5, drives the engine 6, and moves the traveling machine 1 forward. Meanwhile, when the piston rod of the hydraulic cylinder 26 is retracted, the digging blade 25 is dug into the ground at the position of the row to be harvested, and the operator operates the steering handle to adjust the direction of the traveling machine body 1, and the pair of left and right is pinched. The pair of left and right starting end wheels 11, 11 around which the endless belts 3, 3 are wound, is positioned so as to be located in the row of the root vegetables K on the undigged side. As the traveling body 1 advances, the foliage tine 15 at the lower end of the divider 14 moves upward to separate the foliage of the root vegetable K to be dug up and the foliage of the root vegetable K on the undigged up side so as not to be entangled. . In addition, the digging blade 25 which swings up and down by the eccentric rotary boss at the base of the upper link 22 loosens the subsoil and digs below the root of the root vegetables K in the row to be harvested. Next, by the rotation of the rake tine 17 of the foliage rake device 16, the foliage is raised above the upper edge of the endless bands 3, 3. At the starting wheels 11, 11 of the pair of left and right endless belts 3, 3, the raised foliage starts to be pinched, and the pair of pinched endless belts 3, 3 rises toward the rear of the traveling machine body 1. The roots of the root vegetables K with the foliage sandwiched are pulled out from the field with a light force.

The upper end of the root of the root vegetable K which is lifted toward the rear of the traveling machine 1 along the nipping transport line H of the pair of nipping endless belts 3, 3 is restrained by the lower surface of the guide rod 45, It moves substantially horizontally rearward, and the foliage above it is a pair of foliage discharge devices 43, left and right, upper and lower transport bands 43a, 43a.
It is moved to the rear of the traveling body 1 while being pinched at b. Meanwhile, a pair of left and right rotary blades 44 of the cutting means 44
At a and 44a, the portion between the root and the foliage of the root vegetable K is cut off.
After being temporarily caught and buffered, it moves laterally on the sorting conveyor 46, and is collected and harvested in the container 48 at the rear of the container table 49. The cut foliage is discharged from the rear end of the foliage discharge device 43 to the field scene 19, and is guided by a curved guide plate 55 so as not to fall into the undigged field scene 19 at that time. .

The sandwiching endless belt 3 elastically connects a V-belt portion which fits into two V-shaped grooves on the outer periphery of the starting wheel 11, the rear wheel 12 and the intermediate wheel 13, and the foliage of the root vegetable K. It is composed of a soft holding portion for holding (in order not to cut the foliage at the time of pressing), and the soft holding portion has a surface of a soft foam such as sponge rubber or the like having a high rubber hardness and a long standing time. By the mutual pressing force,
The surface layers do not adhere to each other, and are covered with a surface layer of a hard rubber, a silicone rubber, or the like having a water-impermeable property.

In the above-described configuration, the starting position of the root and leaf portion of the root vegetable K by the start ends of the pair of left and right endless belts 3 and 3 is located outside the outer edge of the traveling crawler 2a on the undigged root vegetable K side. In the event that the root vegetable K was not properly digged, the extraction and pinching and transport were incomplete,
Even if the root vegetable K falls on 9, the following traveling crawler 2a will not step on the root vegetable K, and the root vegetable K to be harvested will not be damaged. Also, since the undigged side of the field is not compacted by the traveling crawler 2a,
The resistance of the excavating blade 25 in the next step to excavate the soil is small, and the excavating work can be performed lightly.

Further, in plan view, the front end of the steering column 4 as an operating part disposed on the excavated side of the traveling body 1 and the tips of the pair of left and right endless belts 3, 3 are arranged substantially on the same line. And the traveling crawler 2b on the side where the outer surfaces of the steering column 4 and the operating section step 4a have been dug up.
By arranging the inside of the traveling body in the width direction of the traveling body from the side surface of the traveling body, the operator in the driver's seat 5 can visually observe the vicinity of the distal end of the endless band 3, 3 at a close position,
This has the effect of making it easy to confirm the work of excavating root vegetables.

[0043]

As described in detail above, according to the first aspect of the present invention, the front end of the driving unit disposed on the excavated and raised side of the traveling body and the tip of the pair of left and right endless belts. By arranging substantially on the same line, and by arranging the outer surface of the driving unit on the inner side in the width direction of the traveling body from the side surface of the traveling crawler on the excavated side, the operator at the driver's seat, near the tip end of the endless band. Can be visually observed at a close position, and the effect of easily confirming the excavation work of root vegetables can be achieved.

Further, the invention described in claim 2 is the same as that in claim 1
In the root vegetable harvesting machine according to the above, in plan view, since the cover body covering the outer surface and the upper surface of the traveling crawler on the excavated and raised side is also used as an auxiliary step,
This provides the effect that the foot of the operator or the like does not directly contact the driven traveling crawler, which is safe, and that the cover can also serve as a step when the operator gets on and off the vehicle.

[Brief description of the drawings]

FIG. 1 is a side view of a root vegetable harvester.

FIG. 2 is a plan view of a root vegetable harvesting machine.

FIG. 3 is a front view of a root vegetable harvester.

FIG. 4 is a plan view of a power transmission mechanism of the root vegetable harvester.

FIG. 5 is an enlarged front view of a main part of FIG. 3;

FIG. 6 is an enlarged side view taken along line VI-VI of FIG. 3;

FIG. 7 is a plan view showing front and rear end portions of the endless band.

FIG. 8 is a view showing another example of a raking tine in a foliage raking device.

FIG. 9 is a perspective view of a cutting means.

FIG. 10 is a plan view of the cutting means.

FIG. 11 is a side view of the foliage discharging device and the cutting means.

[Explanation of symbols]

 Reference Signs List 1 traveling body 2a, 2b traveling crawler 3,3 pinching endless belt 4 steering column 4a driving section step 5 driving seat 6 engine 11,11 starting wheel 14 divider 16 foliage scraping device 17 scraping tine 22 upper link 24 vertical support rod 25 Digger blade 65 cover

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Keita Uekubo, Inventor Keita 1-32, Chaya-cho, Kita-ku, Osaka Yanmar Agricultural Machinery Co., Ltd. In-house (72) Inventor Kiyohiro Morikawa 428 Enami, Okayama City

Claims (2)

[Claims] 1. A sub-soiler for digging by vibrating below roots of root vegetables vegetated in a field at a position near one side of a traveling body having a pair of left and right traveling crawlers, and a tip in a forward direction in a traveling direction. And a pair of left and right endless belts for holding the foliage of root crops in the field by pulling and transporting them by tilting rearward so that the rear end side is upward at the rear side in the traveling direction. A root vegetable harvesting machine comprising: a front end of an operating unit disposed on the excavated and raised side of a traveling machine body; and a front end of the pair of left and right endless belts arranged substantially on the same line in plan view; A root vegetable harvester characterized in that the outer surface of the root crop is arranged on the inner side in the width direction of the traveling machine body from the side surface of the traveling crawler on the excavated side. 2. The root vegetable harvesting machine according to claim 1, wherein a cover body covering the outer surface and the upper surface of the traveling crawler on the excavated and raised side is also used as an auxiliary step.