JP2000316345A - Harvester for root vegetables - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent a mulch film from being caught with a digging blade and provide a harvester for root vegetables capable of properly carrying out the harvesting of the root vegetables of mulch cultivation. SOLUTION: This harvester for root vegetables is obtained by composing a digging blade 42 of one blade, digging up the root vegetables of a harvested row, installing a mulch cutter 43 mounted on the digging blade 42 and capable of cutting a mulch film M and admitting the digging blade 42 from the cut thereof into the ground when harvesting the root vegetables of mulch cultivation cultivated by planting seedlings in a ridge B1 covered with the mulch film M in the harvester for the root vegetables capable of nipping leaves and stems of the root vegetables with a pair of left and right endless revolving belts 15a oppositely arranged in a rearwardly rising and tilted state and driven, uprooting the root vegetables from the interior of the ground and digging up the root vegetables with the digging blade 42 at the time of uprooting in order to reduce the uprooting force thereof.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

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

[0002]

2. Description of the Related Art Conventionally, a pair of left and right endless rotating belts, which are driven to face each other in a rearwardly inclined state, sandwich two roots of leaves at the same time and simultaneously pull out two roots from the ground. In order to reduce the pulling force, there has been a root crop harvesting machine that digs up two root vegetables by a pair of left and right excavating blades (subsoilers) at the time of pulling.

[0003]

In the case of harvesting multi-cultivated root crops cultivated by planting seedlings on ridges covered with a multi-film, a conventional root crop harvester uses a pair of left and right digging blades to mulch. There was a problem that the film could catch and become unharvestable. SUMMARY OF THE INVENTION An object of the present invention is to provide a root crop harvesting machine capable of properly harvesting a root crop of mulch cultivation while preventing a multi-film from being caught by a digging blade.

[0004]

According to the present invention, there is provided a root crop harvesting machine according to the present invention. A pulling portion for holding the roots of the root vegetables and pulling the root vegetables out of the ground is provided, and a blade portion having a length to dig up the soil for harvesting under the front end of the pulling portion, and harvesting from one end of the blade portion. A vertical arm section that stands up between the strip and the unharvested strip. The vertical arm section is rotatably supported on a longitudinal pivot shaft, and the vertical arm section is reciprocated in the longitudinal direction. A digging blade having a single structure for digging the root crop of the harvested streak with the blade portion while being rockingly driven in the front-rear direction, and a multi-film covered with a ridge attached to the digging blade and positioned in front of the vertical arm portion. With a multi-cutter that cuts with Since the vertical arm of the digging blade is inserted into the ground from the cut of the multi-film, even if the cultivated root vegetables are harvested, the root vegetables can be dug without catching the multi-film with the digging blade. Since the root crops are dug up by the digging blade, only one mulch film needs to be cut, and the mulch film is cut between the harvested and unharvested strips. Since the vertical arm of one digging blade is inserted into the ground from between the harvesting strips, when two rows of four ridges are planted in a reciprocating manner, it is only necessary to divide the multi-film into two parts. It is possible to prevent the film from being cut into small pieces and hinder the subsequent collection operation, and furthermore, the multi-cutter together with the excavating blade swings back and forth, so that the sharpness of the multi-film can be improved.

Further, the vertical arm portion is rotatably supported on a longitudinal pivoting support shaft through a plurality of bearing members such as bearings and metal, so that the excavating blade can be pivoted back and forth without rattling. The necessary swinging width of the blade can be properly secured over its entire width, and the root can be dug up by a single digging blade by effectively acting up to the tip of the blade. The multi-cutter can be reliably moved, and the multi-cutter can be swung back and forth without rattling, so that the multi-film can be reliably cut.

Further, a digging blade drive arm for reciprocatingly moving in the front-rear direction is provided by being rotatably supported by a plurality of bearings and bearing members such as metal on the oscillating fulcrum shaft. The vertical arm can be adjusted up and down freely, and the blade can be set to the appropriate depth according to the size of the root vegetables, etc.The blade part is too deep and the root vegetables can be dug properly It is possible to prevent the root vegetables from being left unloaded, being overloaded, and conversely having a shallow blade portion and damaging the root vegetables.

In addition, a multi-holding member is provided which extends in the front-rear direction in a ground contact state at an inner side position of the vertical arm and holds the multi-film, and a multi-cutter is disposed at an outer side position of the holding member. Since the multi-film is cut with the multi-cutter while holding the multi-film with the multi-holding member, the multi-film can be cut properly.

Further, the multi-cutter is a disk-shaped rotary blade, and the rotary blade itself rotates in addition to swinging back and forth, so that the sharpness of the multi-film can be improved.

A rotary blade mounting arm is provided for rotatably supporting a rear portion of the vertical arm portion and projecting a front portion of the vertical arm portion so as to be vertically movable at a front position of the vertical arm portion. And a fixing link for fixing the mounting arm to the vertical arm portion in a state where the mounting arm is inclined upward after the mounting arm has a ground angle of 45 degrees or less. Can cut the multi-film without fail because it does not penetrate the ground.

A rotary blade mounting arm is provided for rotatably supporting a rear portion of the vertical arm portion and vertically projecting a front portion of the vertical arm portion at a front position of the vertical arm portion. The rotatable blade is rotatably attached to the spring member, and a spring member for urging the mounting arm to apply a spring force to press the rotatable blade against the ground. With a stopper provided to engage with the mounting arm, the rotary blade can be pressed properly against the ground with a constant load without cutting the rotary blade into the ground, and the multi-film can be reliably cut. is there.

[0011]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is an overall side view of a walking type onion harvester, FIG. 2 is an overall plan view thereof, FIG.
4 is a side view, FIG. 5 is a plan view, FIG. 6 is a partially enlarged view of FIG. 3, FIG. 7 is a partially enlarged view of FIG. 4, and FIG. 8 is a partially enlarged view of FIG. In the figure, (1) is an engine, (2) is a mission, (3) is a left and right lateral transmission case, (4) is a left and right final case, (5) is left and right running wheels, (6) is a steering wheel, and (7) is A gauge wheel, (8) is a weeding device, (9) is a scraping device, and (10) is a nipping and conveying device. The weeding device (8) comprises a weeding case (1) with weeding tines (11).
2) is equipped with two rows of three rows in a rearwardly inclined state. The scraping device (9) is a scraping belt (14) with a pair of left and right locking projections (13), which are driven immediately after the weeding device (8) while being arranged opposite to each other in a parallel and upwardly inclined state. Make up. A pair of left and right endless rotating belts (1) which are driven immediately opposite to each other in a slightly upwardly inclined state immediately after the scraping device (9).
5). Then, while the body is running along the ridges (B1) where the onions (A1) are cultivated in four rows, the foliage (A2) is caused to fall by the weeder (8),
The streaks and leaves (A2) of the streak are separated and erected every single streak, and the two streaks and leaves (A2) in the separated and erected state are scraped together by a scraping device (9) to form a single bundle. Foliage (A2)
By being pinched by a pair of front endless rotating bands (15a) in the front half of the pinching and conveying device (10), and transported rearward and upward,
The onion (A1) is pulled out from the ground two by two, and four rows of ridges are planted two by two in a reciprocating manner. The pair of front endless rotating belts constituting the front half of the holding and conveying device (10). (15a) constitutes the extraction part (16). still,
In the figure, (17) is a post-conveying device which is constituted by the pair of rear endless rotating bands (15b) constituting the rear half of the pinching-conveying device (10), and pinches and transfers the cut foliage (A2). )
Is a foliage release device that inherits the cut foliage (A2) from the post-transportation device (17), and traverses and discharges the foliage (1).
9) The foliage (A) released from the foliage release device (18)
This is a foliage release guide body made of a flexible rubber plate for guiding 2) to the ground.

The left and right running wheels (5) and each device (8)
(9), (10) and (18) are for transmitting the power of the engine (1) through the transmission path shown in FIG. 9, and the output shaft (1a) of the engine (1) is linked to the input section of the mission (2). The right and left traveling output shaft (3a) of the transmission (2) connected to the left and right horizontal transmission case (3) is connected to the chain transmission mechanism (4a) and the left and right side clutch (20) mounted to the left and right final case (4). Via left and right axle (21)
And the left and right axles (21) are rotatably driven. Incidentally, (22) in the drawing is a left and right parking brake. On the other hand, the work output shaft (2) projecting forward from the mission (4) via the work clutch (23)
4) is operatively connected to the left and right work input shaft (25) via a pair of bevel gears (26).
5) A pair of worm (27) and worm wheel (2)
8) a nip-conveying drive shaft (29) interlockingly connected via the boss is protruded upward, and the rear driving pulley shaft (30) of the pair of endless rotating belts (15) is chained to the nip-conveying drive shaft (29). The pair of endless rotating bands (15) are rotationally driven in a predetermined direction by interlocking connection via a transmission mechanism (31). An upper driving pulley shaft (33) of a pair of scraping belts (14) is interlockedly connected to a front driven pulley shaft (32) of the pair of endless rotating bands (15) via a chain transmission mechanism (34), The pair of scraping belts (14) are driven to rotate in a predetermined direction. The rear end of a vertical transmission shaft (35) extending in the front-rear direction on the lateral side and outer side of the ridge (B1) of the holding and conveying device (10) is connected to the work input shaft (2).
5) A pair of bevel gears (3)
6) and linked together via the weeding tine (1)
1) The front end of the vertical transmission shaft (35) is linked to the center end of the ridge (B1) of the upper drive sprocket shaft (37) of the tine chain (11a) to be mounted, and each weeding case (12)
Of the weeding tine (11) is rotated. Further, the foliage releasing device (18) is supported on the rear drive pulley shaft (30) of the endless turning band (15) on the valley side, and the endless turning band (15) is provided.
And is driven to rotate together.

As shown in FIGS. 1 to 8, the structure of the above-mentioned harvester includes a leaf cutting device (39), a transport device (40), an auxiliary transport device (41), and a digging blade (4) for mulching.
2) It is equipped with a multi-cutter (43), a divider (44), a multi-holding body (45) and a multi-focusing mechanism (46), and constitutes a multi-specification structure for harvesting multi-cultivated onions (A1). .

The leaf cutting device (39) is disposed below the drawing portion (16), and the onion (A1) drawn from the ground.
Reciprocating blade (4) that cuts the foliage (A2) at its root
7). Therefore, since the onion (A1) is harvested without being lifted to a position higher than the extraction portion (16), even if the cultivated root crops are harvested, the multi-film (M) is obtained.
Cannot be lifted to a position higher than the pull-out portion (16), and the multi-film (M) wraps around the pair of endless rotating bands (15a) of the pull-out portion (16) and other portions, so that harvesting becomes impossible. Can be prevented.

The transport device (40) includes a pair of endless rotating bands (15a) of the drawing portion (16) and a rear end below the pair of endless rotating bands (15a). A synthetic resin slash plate (48), which is a pair of left and right guide members disposed in an inclined state so as to be separated from each other, and guides the lower part of the foliage (A2) between the pair of slash plates (48). Meanwhile, the upper part of the foliage (A2) is pinched and transported by a pair of endless rotating bands (15a), so that the onion (A1) pulled out from the ground is turned on its upper surface to the lower surface of a pair of slash plates (48). The leaf cutting device (39) is disposed between the pair of endless rotating bands (15a) of the conveying device (40) and the rear portion of the pair of slash plates (48). are doing. Therefore, the posture and the positional relationship of the onion (A1) with respect to the leaf cutting device (39) are unified by the transfer device (40), and when the onion (A1) is stabilized, the root of the foliage (A2) in the tension state is moved to the leaf. Since cutting is performed by the cutting device (39), the leaf cutting height can be made uniform, and a beautiful cut surface can be finished, so that commercial value can be improved.

The pair of slash plates (48) are provided in two sets on the left and right, and a V-shaped or U-shaped weeding guide (49) is provided in plan view, and the rear end of the weeding guide (49) is provided. Parts are attached to the inner slash plate (48) of each set, the front end bent portion is extended to a portion immediately after the lower end side between the pair of scraping belts (14), and the foliage (A2) of the left strip is attached to the right slash plate. Weeding guides (49) prevent the receiving between the plates (48) and the foliage (A2) of the right streaks (A2) between the left slash plates (48). Are configured to separately receive the foliage (A2) one by one. Note that the weeding guide (49) is shaped so as not to break the multi-film (M) by curving the front part upward.

Also, two sets of slash plates (48) are attached to the lower surface, and a receiving plate (50) for assembling the reciprocating blade (47) is provided at the rear of the upper surface. A pair of left and right grooves (51) is provided corresponding to the foliage transport path formed between the plates (48). The slash plates (48) inside the slash plates (48) of each set are integrally formed, and two sets of a pair of guide members are provided by three slash plates (48) at the left, right, and center. .

The auxiliary transport device (41) is located above the leaf cutting device (39) between a pair of endless rotating bands (15a) of the transport device (40) and a pair of guide members (48). A pair of left and right locking protrusions (52) and a squeezing belt (53) driven in parallel or substantially parallel with the guide member (48);
0), the stems and leaves (A2) of the onions (A1) conveyed to the rear leaf cutting device (39) are scraped into the rear leaf cutting device (39). A pair of endless rotating bands (15
The speed is set to be higher than the nipping transfer speed of the foliage (A2) according to a). Therefore, the root portion of the foliage (A2) is forcibly sent at a stretch to the leaf cutting device (39) by the auxiliary transport device (41), so that it is possible to prevent the height of the leaf cutting from becoming uneven and the cut surface from becoming dirty. In addition, appropriate leaf cutting work can be reliably performed.

As shown in FIGS. 10 and 11, the excavating blade (42) is located below the front end of the drawing portion (16) and has a harvesting portion (2).
A blade portion (42a) having a length for digging and raising soil.
A vertical arm portion (42b) rising from one end of the blade portion (42a) between the harvested streak and the unharvested streak (central portion of the ridge). 5
4) and the vertical arm section (42)
By providing a reciprocating motion in the front and rear direction to b), the blade portion (42a) digs up the onion (A1) of the harvesting streak (two) while swinging in the front and rear direction.

Further, in order to prevent rattling of the excavating blade (42), the vertical arm (42b) is pivoted back and forth on the pivot shaft (5).
4) a plurality of bearing members (87) for rotatably supporting the blade portion (42a) of the digging blade (42);
The fulcrum shaft (54) is rotatably supported via a plurality of bearings (87) so that it can be placed at an appropriate depth according to the size of the root vegetables to be harvested. A digging blade drive arm (88) for reciprocating movement is provided;
The vertical arm (42b) is attached to the drive arm (88) so as to be vertically adjustable. Specifically, a sleeve (89) as a bearing box is provided at an intermediate portion of the drive arm (88).
Are integrally provided, and the sleeve (89) is fitted via two bearings (87) on one fulcrum shaft (54) fixed laterally to the body frame body (90). The drive arm (88) is supported on the fulcrum shaft (54) so as to be swingable in the front-rear direction. Further, a crank rod (66) is connected to the upper end of the drive arm (88), and a reciprocating motion in the front-rear direction is given to the upper end of the drive arm (88), and the drive arm (88) is centered on the fulcrum shaft (54).
Are driven to swing back and forth. In addition, the bearing member (87)
Metal can be used in addition to bearings. The excavating blade (42) has an upper portion of the vertical arm (42b) detachably fastened and fixed to the drive arm (88) by a plurality of sets of bolts and nuts, and is integrated with the drive arm (88) in the front-rear direction. It is driven to swing. A large number of bolt holes (90) on the side of the vertical arm (42b) are provided so that the fastening position of the vertical arm (42b) to the drive arm (88) can be adjusted up and down.

The multi-cutter (43) cuts the multi-film (M) attached to the excavating blade (42) and covered with the ridge (B1) at a position in front of the vertical arm (42a). A disk-shaped rotary blade is used as the multi-cutter (43). The mounting structure of the rotary blade (43) is such that the vertical arm portion (42b) rotatably supports the rear portion and the front portion projects vertically at the front position of the vertical arm portion (42b). An arm (91) is provided, and the rotary blade (43) is rotatably attached to a front portion of the mounting arm (91).
And as shown in FIG. 11, in a state where the mounting arm (91) is inclined upward after the ground angle (92) of the mounting arm (91) becomes 45 degrees or less,
The mounting arm (91) is connected to one fixed link (93).
FIG. 1 shows a structure fixed to the vertical arm portion (42b) by
As shown in FIG. 2, the ground angle (9
2) A structure in which the mounting arm (91) is vertically swingably attached to the vertical arm portion (42b) by a single spring member (94) and a stopper (95) in a state where the mounting arm (91) is inclined upward after 45 degrees or less. In addition, it is configured to be switchable. Specifically, a fulcrum plate (96) of the mounting arm (91) extends rearward from a lower portion of the drive arm (88). The fulcrum plate (96) is connected to the drive arm (88) by a plurality of sets of bolts and nuts together with the vertical arm (42b).
It is fastened and fixed. At the rear of the fulcrum plate (96), the rear part of the mounting arm (91) has a horizontal fulcrum (9).
7) and is rotatably supported via a mounting arm (9).
The front portion of 1) is supported at a position in front of the vertical arm portion (42b) so as to be vertically movable. The mounting arm (91)
A core shaft (98) is fixed to the front part of the vehicle horizontally and horizontally, and the rotary blade (43) is rotatably attached to the core shaft (98). Attachment arm (91) with front downward tilt
Is extended and supported, so that the lower part of the rotation center of the rotary blade (43) bites into the ground at right angles or substantially right angles,
The rotary blade (43) is supported at a position in front of the vertical arm (42b). That is, the mounting arm (91) extends rearward from the center of the rotary blade (43) in an upwardly inclined state, extends rearward, separates from the ground, and is close to the longitudinal pivot shaft (54). At the top of the mounting arm (9
By rotatably supporting 1), it is possible to prevent the soil from adhering to the rotation support portion of the mounting arm (91) and to prevent the movement from being deteriorated, and also to reduce the driving load of the excavating blade (42) and its support. The required strength of the part is prevented from increasing significantly. Then, as shown in FIGS. 10 and 11,
When the mounting structure of the rotary blade (43) is fixed, the rear end of the mounting arm (91) is connected to the driving arm (88) by a fixed link (93) having an invariable length, so that the mounting arm ( The ground angle (92) of 91) is 4
The mounting arm (91) is fixed to the vertical arm portion (42b) in the upwardly inclined state of 5 degrees or less. on the other hand,
As shown in FIG. 12, when the mounting structure of the rotary blade (43) is movable, a spring force is applied to the mounting arm (91) in order to press the rotary blade (43) against the ground instead of the fixed link (93). ) Is extended between the rear end of the mounting arm (91) and the drive arm (88), and the angle (92) of the mounting arm (91) relative to the ground is 45 degrees or less. A stopper (95) that engages with the mounting arm (91) in the upwardly inclined state protrudes from the fulcrum plate (96), and the mounting arm (91) abuts on the stopper (95) by the force of a spring (94). By holding, the attachment arm (91) is attached to the vertical arm portion (42b) so as to be vertically swingable.
In both of the above structures, the rotary blade (43) rotates by rolling back and forth integrally with the digging blade (42) while rotating by rolling contact with the ridge (B1), and is rotated between the harvested and unharvested ridges (ridge). The multi-film (M) is continuously cut in the length direction at the center portion), and the multi-film (M) is divided into two. The vertical arm (42b) of the excavating blade (42) is inserted into the ground from the cut of the multi-film (M). still,
(99) in FIGS. 10 to 12 is a safety cover for the rotary blade (43).

As is apparent from the above description, a pair of left and right endless rotating belts (1) driven to face each other in the upwardly inclined state.
According to 5a), foliage (A2) of a plurality of onions (A1)
And a cutting portion (4) for pulling the onion (A1) out of the ground by holding the cutting portion (16), and a cutting portion (4) having a length capable of digging the soil for the harvested strip below the front end of the drawing portion (16).
2a) and a vertical arm portion (42b) rising from one end of the blade portion (42a) between the harvested and unharvested strips.
4) and rotatably supported by the vertical arm (4).
2b) is given a reciprocating motion in the front-rear direction, so that the blade portion (42a) digs up the onion (A1) of the harvesting streak while swinging in the front-rear direction.
2) and the multi-film (M) attached to the excavating blade (42) and covered with the ridge (B1) is
Since the multi-cutter (43) for cutting at the position in front of b) is provided, the vertical arm portion (42b) of the digging blade (42) is inserted into the ground from the cut of the multi-film (M), so that the onion of multi-cultivation is used. Even if (A1) is harvested, the digging blade (4
In 2), the onion (A1) can be dug up without catching the multi-film (M), and the onion (A1) for the harvested streak is dug up with one excavating blade (42). M) only needs to be cut at one place, and one excavating blade (M) is cut between the harvested and unharvested strips so as to cut the multi-film (M) between the harvested and unharvested strips. Since the vertical arm part (42b) of 42) is inserted into the ground, when harvesting by reciprocating four rows of one ridge two by two, it is only necessary to divide the multi-film (M) into two parts, and the multi-film (M) Can be prevented from being cut into small pieces, which would interfere with the recovery work afterwards.
Since the multi-cutter (43) swings back and forth together with 2), the sharpness of the multi-film (M) can be improved. Further, since the vertical arm portion (42) is rotatably supported on the longitudinal pivot shaft (54) via the plurality of bearing members (87), the excavating blade (42) is not rattled. The blade (42a) can be swung back and forth, and the required swing width of the blade (42a) can be properly secured over the entire width thereof. 42) The onion (A1) for the harvested streak can be reliably dug up, and the multi-cutter (43) can be swung back and forth without rattling, so that the multi-film (M) can be reliably formed. Can be cut. A digging blade drive arm (88), which is rotatably supported on the pivot shaft (54) via a plurality of bearing members (87) and provides reciprocating motion in the front-rear direction, is provided. 88)
Since the vertical arm portion (42b) is vertically adjustable, the blade portion (42a) can be inserted at an appropriate depth corresponding to the size of the onion (A1) and the like.
The onion (A1) is prevented from being dug properly due to excessive penetration of the onion (A1), being overloaded, and the onion (A1) having a shallow blade portion (42a) being adversely affected. it can. In addition, the multi-cutter (4
3) is a disk-shaped rotary blade, and the rotary blade (43) is caused to rotate itself by swinging back and forth, so that the sharpness of the multi-film (M) can be further improved. A rotary blade mounting arm (91) for rotatably supporting a rear portion of the vertical arm portion (42b) and vertically projecting a front portion at a position in front of the vertical arm portion (42b); The rotary blade (43) is provided at the front of the mounting arm (91).
And the mounting arm (9
In the upwardly inclined state where the ground angle (92) of 1) becomes 45 degrees or less, the mounting arm (91) is attached to the vertical arm portion (4).
Since the fixing link (93) for fixing to the 2b) is provided, the rotary blade (43) does not bite into the ground, and the multi-film (M) can be reliably cut. A rotary blade mounting arm (91) for rotatably supporting a rear portion of the vertical arm portion (42b) and vertically projecting a front portion at a position in front of the vertical arm portion (42b); The rotating blade (43) is rotatably attached to a front portion of the mounting arm (91), and a spring member () for urging the mounting arm (91) with a spring force so as to press the rotating blade (43) against the ground. 94) and a stopper (95) that engages with the mounting arm (91) in a state where the mounting arm (91) is inclined upward after the ground angle (92) of the mounting arm (91) becomes 45 degrees or less. The rotary blade (43) can be properly pressed against the ground with a constant load without cutting into the ground, and the multi-film (M) can be reliably cut.

The divider (44) is provided with a foliage (A) which is in a state of lodging on the lower front of each weeding case (12) of the weeding device (8).
2) a rod-shaped divider body (55) for picking up and guiding the weeding tine (11) to the range of action of the weeding tine (11); and a divider mounting frame (56) for attaching the divider body (55) to the weeding case (12). , Divider body (5
5) is provided with a multi-holding portion (55a) for sliding contact with the ridge (B1) coated with the multi-film (M) at the front portion, and from the rear end of the holding portion (55a) to the tip of the weeding tine (11). A guide portion (55b) is provided at the rear portion to extend in a rear-upward inclined state to the lower circling locus, and a multi-stick prevention portion (55c) formed by bending the front portion of the pressing portion (55a) backward. Is provided at the front end.

The multi-holding body (45) has a front part attached to the center weeding case (12) and the weeding case (12).
A first holding rod (57a) extending in a ground contact state from below the rear leaf cutting device (39) and a weeding case (12) on the center side of the ridge (B1). A second presser bar (57b) extending from the lower side of the case (12) to the lower side of the rear leaf cutting device (39) in a grounded state, and the first and second presser bars (57a) (57b) From the weeding device (8) to the leaf cutting device (39), the multi-film (M) and the ridge (B1) between the ridges (B1) between the ridges (B1) and the ridges (B1) are formed. Pressing, the weeding tine (11) and the locking projection (13) of the pair of scraping belts (14) prevent the multi-film (M) from being hooked. Note that the multi-film (M) outside the strip on the valley side of the harvest strip is covered with a slope or a valley on the outer side of the multi-film (M), so that the holding body (45) is not provided.

Further, the front portion of each presser bar (57a) (57b) is warped upward to form a shape that does not break the multi-film (M), and the warped portions (58a) (58)
b) in the working range of the weeder tine (11) at the position just beside the lower circling path when the weeder tine (11) turns from downward rotation to upward rotation in the middle of lower traverse, The action while the weeding tine (11) is rotating downward is eliminated, further preventing the weeding tine (11) from catching the multi-film (M).

The second holding rod (57b) extends in the front-rear direction in a ground contact state at a position just beside the vertical arm (42b) of the excavating blade (42), and is provided with a multi-film (M). , And the rotary blade (43) is disposed just outside the second pressing rod (57b). The rotary blade (43) is held while the multi-film (M) is pressed by the second pressing rod (57b). , The multi-film (M) can be cut properly.

The multi-focusing mechanism (46) projects forward from the multi-cutter (43) and the final case (4) on the harvesting side to form a multi-film (M) coated on the slope on the harvesting side. ), And the multi-film (M) is placed between the converging rod (59) that floats on the upper surface of the ridge (B1) and the left and right final cases (4), and is a multi-film of half width on the harvest side. And a focusing roller (60) that is placed behind while converging (M), and is configured to perform post-processing of the multi-film (M) simultaneously with harvesting of the onion (A1).

The leaf cutting device (39), the excavating blade (42) and the auxiliary conveying device (41) transmit the power of the engine (1) through the transmission path shown in FIG. ), A crank (61) is provided at the valley side end, and a cutter driving rod (64) is interlockedly connected to the crank (61) via a crank rod (62) and an L-shaped link (63), and a reciprocating blade ( 47) is driven. On the other hand, a crank (65) is provided at the center end of the ridge (B1) of the work input shaft (25), and the drive arm (42) of the digging blade (42) is attached to the crank (65) via a crank rod (66). 8
The upper end of 8) is interlocked to drive the excavating blade (42). Further, an auxiliary transport drive shaft (67) is provided on the front driven pulley shaft (32) of the pair of endless rotating bands (15) via a chain transmission mechanism (34).
A rear drive pulley shaft (69) of a pair of scraping belts (53) is operatively connected to the pair of scraping belts (53) via a chain transmission mechanism (68) for speed increase, and a pair of scraping belts (53) are connected to a pair of endless rotating belts. It is driven to rotate in a predetermined direction at a higher speed than (15).

[0029]

As is apparent from the above embodiments, the root crop harvesting machine of the present invention has a plurality of endless rotating belts (15a) which are driven to be opposed to each other in an upwardly inclined state. The roots (A2) of the root vegetables (A1)
A cutting portion (16a) having a length for digging up the soil of a harvested streak below the front end of the drawing portion (16), and a cutting portion (42a); ) Comprises a vertical arm portion (42b) rising from one end to between the harvested and unharvested lines, and the vertical arm portion (42b) is rotatably supported on a longitudinal pivot shaft (54), By giving the vertical arm part (42b) a reciprocating motion in the front-rear direction, a single-cutting digging blade for digging up the root crop (A1) of the harvesting strip with the blade part (42a) while swinging and driving in the front-rear direction. (42) and its excavation blade (4
2) a multi-cutter (43) for cutting the multi-film (M) covered with the ridge (B1) at the position in front of the vertical arm (42b).
Since the vertical arm portion (42b) of 2) is inserted into the ground from the cut of the multi-film (M), the root crops (A)
Even if 1) is harvested, root vegetables (A1) can be dug up without catching the multi-film (M) with the excavating blade (42), and the harvesting streak can be obtained with one excavating blade (42). Since the root vegetables (A1) are dug up, it is only necessary to cut the multi-film (M) at one place, and at the same time, cutting the multi-film (M) between the harvested and unharvested strips One digging blade from between unharvested strips (42)
The vertical arm (42b) is inserted into the ground.
In the case of harvesting by double-rowing, two rows at a time, it is only necessary to divide the multi-film (M) into two parts, and it is possible to prevent the multi-film (M) from being cut into small pieces and hindering the subsequent collection work. Since the multi-cutter (43) also swings back and forth together with the excavating blade (42), the multi-film (M)
Can improve the sharpness.

Further, the vertical arm portion (42b) is rotatably supported on a pivot shaft (54) through a plurality of bearing members (87). The blade (42a) can be swung back and forth without being attached, and the required swing width of the blade (42a) can be properly secured over the entire width thereof.
The root crops (A1) of the harvested streak can be reliably dug up by the digging blade (42) of the book, and the multi-cutter (43) can be swung back and forth without rattling. The film (M) can be reliably cut.

A digging blade drive arm (88), which is rotatably supported on the pivot shaft (54) through a plurality of bearing members (87) and provides reciprocating motion in the longitudinal direction, is provided. The vertical arm portion (42) is attached to the drive arm (88).
b) is attached so as to be adjustable up and down.
a) can be put into an appropriate depth corresponding to the size of root vegetables (A1), etc., and the blade portion (42a) is too deep to dig up root vegetables (A1) properly. It is possible to prevent the blade portion (42a) from entering into a shallow state and causing the root vegetables (A1) to be damaged.

Further, a multi-holding member (57b) is provided at the inner side of the vertical arm portion (42b) to extend in the front-rear direction while holding the ground, and holds the multi-film, and the outer side of the pressing body (57b) is provided. Multi cutter (4
The multi-cutter (4) is provided while holding the multi-film (M) with the multi-holding body (57b).
Since cutting is performed in 3), the multi-film (M) can be cut properly.

Further, since the multi-cutter (43) is a disk-shaped rotary blade, and the rotary blade (43) rotates itself in addition to swinging back and forth, the multi-film (4) is used.
The sharpness of 3) can be further improved.

A rotary blade mounting arm (91) for rotatably supporting a rear portion of the vertical arm portion (42b) and projecting a front portion of the vertical arm portion vertically in front of the vertical arm portion (42b). The rotary blade (43) is rotatably mounted to the front of the mounting arm (91), and the mounting arm (91) is tilted upward and rearward at an angle (92) of 45 degrees or less. Mounting arm (91)
Is provided with a fixing link (93) for fixing the multi-film (M) to the vertical arm portion (42b). Since the rotary blade (43) does not bite into the ground and becomes inconvenient, the multi-film (M) can be reliably cut. .

A rotary blade mounting arm (91) for rotatably supporting a rear portion of the vertical arm portion (42b) and for vertically projecting a front portion at a position in front of the vertical arm portion (42b). The rotary blade (43) is rotatably mounted to the front of the mounting arm (91), and a spring force is applied to the mounting arm (91) so as to press the rotary blade (43) against the ground. A spring member (94);
When the mounting arm (91) is inclined upward after the ground angle (92) of the mounting arm (91) becomes 45 degrees or less, the mounting arm (9)
A stopper (95) to be engaged with 1) is provided.
Without cutting the rotary blade (43) into the ground
The rotary blade (43) can be properly pressed against the ground with a constant load, and the multi-film (M) can be reliably cut.

[Brief description of the drawings]

[Figure 1] Overall side view of walking onion harvester

Fig. 2 Overall plan view of a walking onion harvester

FIG. 3 is a front view of a harvesting work unit.

FIG. 4 is a side view of a harvesting work unit.

FIG. 5 is a plan view of a harvesting work unit.

FIG. 6 is a partially enlarged view of FIG. 3;

FIG. 7 is a partially enlarged view of FIG. 4;

8 is a partially enlarged view of FIG.

FIG. 9 Drive system diagram

FIG. 10 is a front view of a digging section.

FIG. 11 is a side view of a digging section.

FIG. 12 is a side view showing a modification of the excavation unit.

[Explanation of symbols]

 (A1) Root vegetable (A2) Foliage (B1) Ridge (M) Multi-film (15a) Endless rotating band (16) Pull-out part (42) Digging blade (42a) Blade part (42b) Vertical arm part (43) Rotation Blade (multi-cutter) (54) Front and rear swing fulcrum shaft (57b) Second holding rod (multi-holding body) (15a) Endless turning band (87) Bearing (bearing member) (88) Digging blade drive arm (91) ) Rotating blade mounting arm (92) Ground angle (93) Fixed link (94) Coil spring (spring member) (95) Stopper

Continued on the front page (72) Inventor Akihito Watanabe 428 Enami, Okayama-shi, Okayama Prefecture F-term (reference) 2B024 DB01 2B072 AA03 BA02 BA21 BA30 CA12 DA15 EA01

Claims (7)

[Claims] A pair of left and right endless rotating belts which are driven to face each other in a rearwardly inclined state to provide a pulling portion for holding a plurality of roots of foliage and pulling the roots out of the ground. The vertical arm comprises a blade portion having a length that digs up the soil for the harvesting streak below the front end of the drawing portion, and a vertical arm portion rising from one end of the blade portion between the harvesting streak and the unharvested streak. The rotatable support portion is rotatably supported on a pivot shaft, and the vertical arm portion is reciprocated in the front-rear direction. A root crop harvesting machine, comprising: a digging blade of this configuration; and a multi-cutter attached to the digging blade and cutting a multi-film covered with ridges at a position in front of a vertical arm portion. 2. The harvester for root crops according to claim 1, wherein the vertical arm portion is rotatably supported on a pivot shaft for pivoting back and forth through a plurality of bearing members. 3. A digging blade drive arm, which is rotatably supported on a longitudinal pivot shaft via a plurality of bearing members to provide reciprocating motion in the longitudinal direction, is provided with the vertical arm portion vertically. 3. The harvester for root crops according to claim 1, wherein the harvester is adjustable. 4. A multi-holding body that extends in the front-rear direction in a ground contact state at an inner side position of the vertical arm portion and holds a multi-film, and a multi-cutter is disposed at an outer side position of the holding body. 4. The harvester for root vegetables according to 1, 2, or 3. 5. The harvester for root crops according to claim 1, wherein the multi-cutter is a disk-shaped rotary blade. 6. A rotary blade mounting arm for rotatably supporting a rear portion of the vertical arm portion and vertically projecting a front portion of the vertical arm portion at a front position of the vertical arm portion, and a front portion of the mounting arm. The rotatable blade is rotatably mounted on the
The root crop harvesting machine according to claim 5, further comprising a fixing link for fixing the mounting arm to the vertical arm portion in a state where the mounting arm is inclined upward after the ground angle of the mounting arm becomes 45 degrees or less. 7. A rotary blade mounting arm for rotatably supporting a rear portion of the vertical arm portion and projecting a front portion of the vertical arm portion at a position in front of the vertical arm portion so as to be vertically movable, and a front portion of the mounting arm. The rotatable blade is rotatably mounted on the
In order to press the rotary blade against the ground, a spring member for urging a spring force to the mounting arm, and a stopper for engaging the mounting arm in an upwardly inclined state where the angle of the mounting arm to the ground is 45 degrees or less are provided. A harvester for root vegetables according to claim 5.