JP3450187B2 - Crop harvester - Google Patents

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a harvester for bulb crops such as onions, garlic, ginger and lilies, or root crops such as carrots, radish and burdock, and is mainly used in onion harvesters. is there.

[0002]

2. Description of the Related Art Conventionally, as an onion harvester for harvesting onions cultivated in ridges, there is one disclosed in JP-A-9-84427. This type of onion harvesting machine, while advancing the machine body along the ridges, digs up the crop with a digging tool provided at the front of the machine body, and sandwiches the stalks and leaves of the digged onion with a pulling and conveying device. And the upper and lower parts are conveyed to the upper rear, and the foliage portion below the sandwiching part by the pulling and conveying device is sandwiched by the positioning and conveying device and conveyed rearward,
During transportation, the foliage portion is cut by a cutter between the sandwiching portion of the pulling and transporting device and the sandwiching portion of the positioning and transporting device, and then the onion cut into a predetermined length of this foliage portion of the positioning and transporting device. At the end side, it is left on the ridge.

When four rows of onions are grown in rows and are harvested, the onion harvester is made to travel back and forth with respect to one row, and on the way out, two rows on one side in the left-right direction of the row are provided. The onion digging and foliage cutting process is performed, and the other two onions digging and foliage cutting process can be performed on the return path.

[0004]

In the above-mentioned prior art, it is convenient to allow the worker to walk on the center side of the ridge after the onion digging and foliage cutting processing (for example, digging). It is for picking up the onions that have undergone the cutting and foliage cutting process), so that the worker can easily walk on the center side of the ridge (to secure the worker's walking space). It is considered that the onions are discharged so as to approach the left and right ends of the ridges on the terminal side, but the onions that were dug up and failed to be pinched by the pulling and conveying device, the onions that fell on the ridges during conveyance, and the cutting process should be performed. The onions and the like that are released on the ridge after completion may roll toward the center side of the ridge.

Although the center side of the ridge is opened, there is a problem that rolling of the onion on the center side of the ridge hinders the walking of the operator. Then, this invention aims at solving the said problem.

[0006]

The technical means taken by the present invention to achieve the above-mentioned object is to reciprocate the machine body along the longitudinal direction of the ridge, and in the forward path, the crops on the left and right sides of the ridge are Digging and cutting foliage to dig up the crop
It is left on the end of the ridge, and on the return path, the crops on the left and right sides of the ridge are dug and the foliage is cut off to dig the crop on the ridge . In the crop harvester that was left on the end side of the side , on the left and right sides of the machine ,
Exhumed the crop, provided with a regulating member for restraining the rolling in the lateral direction outwardly of the vehicle body in the front-rear direction, the right and left restricting portions
Depending on the material, the end of the side where the crop is dug up
As can be gathered, at least the rear part of the regulating member located on the center side of the ridge is the end part in the left-right direction of the ridge on the side where the crop is dug and the foliage is cut from the center of the ridge as it goes backward. and an inclined shape so as to shift to the side, 且
The regulating member located on the end side of the ridge is substantially in the longitudinal direction of the ridge.
It is characterized by being arranged along .

[0007] Further, the crops dug up by the dug tool are conveyed to the rear, the foliage is cut in the middle of the conveyance, and discharge means for discharging the crops to the ridges at the end of the conveyance is provided, and left and right regulation is provided. The member has its front part close to the dug tool and
The rear part is provided so as to wrap with the discharge means when viewed from the side, and is also a regulating part located on the center side of the ridge.
The material went backward from the front edge to the rear edge.
By digging crops and cutting foliage from the center of the ridge
The ridges on the side of the
It is also characterized by being. Further, it is also characterized in that height adjusting means for adjusting the vertical position of the regulating member is provided.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. In FIG. 4 showing the overall configuration in side view, FIG. 5 showing in plan view, and FIG. 6 showing in front view, the harvester 1 according to the present embodiment is a walk-type onion harvester. In addition, it is free to travel (forward / backward) in the longitudinal direction of the ridge over the ridge A, and equipped with drive wheels (rear wheels) 2L, 2R on both left and right sides of the machine body 1A,
Gauge wheels (driven wheels, front wheels) 3 are provided only on one of the left and right sides of the machine body 1A, only on the right side in the figure.

In the present embodiment, the crop (onions) B are grown on the ridges A and four rows of rows are harvested, and the onion harvester 1 is reciprocated with respect to one ridge A. Drive and dig two crops B on one side (right side) of the ridge A in the left and right direction (forward side) and perform foliar cutting processing, and dig other two crops B (left side) on the return path. It illustrates an example of a mode in which the cutting and foliage cutting process is performed.

The body 1A of the harvester 1 is divided into a weeding device 4, a scraping device 5, a pulling / conveying device 6, a positioning / conveying device 7, and a pulling / conveying device 6 and a positioning / conveying device 7 from the front part to the rear part thereof. The cutting device 8 and the aligned discharging device (discharging means) 9 provided are arranged, and these are mounted and supported on the machine body frame 12 to be a main structure. The body frame 12 is mainly configured by connecting a rear end side of a main frame member 12A, which is a pair of right and left square tubular members and the like arranged in the front-rear direction, with a connecting frame member.

In the vicinity of the gauge wheel 3, a pair of left and right sub-soilers (digging tools) 10 for expanding and softening the ridges A for facilitating pulling out are provided. The pair of left and right sub-soilers 10 is formed in an L shape in a front view from a column 10A and a blade 10B bent inward in the left-right direction from the lower end of the column 10A. The sub-soiler 10 is located on the outer side in the left-right direction in the vicinity of the lower portion of the pulling and conveying device 6, and as shown in FIG. It is rotatably supported around the center of the body, and the push-pull rod 1 is located above this pivotally supported part.
The front end side of 5 is rotatably pivotally connected about an axis in the left-right direction, and by pushing and pulling this push-pull rod 15 back and forth by the drive means, the subsoiler 10 reciprocates back and forth around the pivot 14. Is configured to.

When the subsoiler 10 reciprocates and vibrates back and forth, the ridge A is cut and vibrated at a position below the crop B to soften the ridge A to dig up the crop B, and the crop B thereafter.
Is helping to withdraw. The gauge wheel 3 is arranged at one side of the intermediate position between the sub-soiler 10 and the weeding device 4, and the height is obtained by operating the transmission shaft 52 having the bending portion with the handle 53 from the handle side of the steering handle 51. It is supposed to be adjustable (gauge adjustment).

An engine 11 is provided at the rear of the body frame 12.
The power from the engine 11 is transmitted to the power transmission mechanism in the mission case 13 mounted on the body frame 12, and the power is output from the mission case 13 by the PTO shaft 17 protruding forward. In addition, the power is transmitted to the power transmission mechanism and the like in the left and right transmission cases 19L and 19R via the transmission mechanism and the speed change mechanism, and the left and right drive wheels 2L and 2R are rotationally driven. There is.

One of the pair of left and right transmission cases 19L and 19R, and the left transmission case 19L in the figure is the fuselage frame 12
It can be expanded and contracted (expanded and contracted) in the left and right direction via a lateral expansion and contraction guide mechanism 20 and a telescopic transmission tube 21 having a nested structure provided in the rear portion, and the tread can be adjusted according to the width of the ridge A. Thus, the pair of left and right drive wheels 2L and 2R can roll on the furrow groove A1.

The power from the PTO shaft 17 is detachably connected to the drive shaft in the transmission case 22 supported on the body frame 12 side, and the power is transmitted from the drive shaft to the weeding device 4 via the transmission shaft 27. Power is transmitted to the pulling and conveying device 6, and from this, the power is transmitted to the scraping device 7 and the positioning and conveying device 7, and further, the positioning and conveying device 7
Is configured to be transmitted to the alignment discharge device 9.

As shown in FIG. 4, FIG. 6 and FIG. 8, the weeding device 4 is a weeding transmission case fixedly attached to a support plate 16 fixed to the front end side of each of the left and right main frame members 12A of the machine body frame 12. 30 and sprocket wheels 31 and 32 that are pivotally supported on the upper and lower parts of the case 30 and rotate around the left and right axes.
An endless chain 33 wound around the wheels 31 and 32, a tine 34 attached to the chain 33 so that the chain 33 can be erected up and down in the longitudinal direction, and is provided in the lower part of the weed transmission case 30 to be forwardly It is composed of an extending weeding member (divider) 35 and the like.

It should be noted that the sub-soiler 1 is attached to the support plate 16.
0 is pivoted. In the present example, the three grass transmission cases 30 are inclined downward in the front and are spaced from each other in the left-right direction, and three pieces are arranged in parallel in this example, one corresponding to the shoulder of the ridge A and two between the rows of the crop B. Are located on the left and right sides of the crop B,
By circulating (circling) the chain 33 in the X direction shown by the arrow in FIG. 8, the tines 34 are cyclically transported so as to move upward on the front side and move downward on the rear side. The foliage portion B1 of the crop B lying on its side or the foliage portion B1 laid down so as to protrude from the ridge A (hangs over the shoulder portion of the ridge A) is scooped up from below, whereby the foliage portion B1 Hooks and pulls them up so that they can be aligned in the front-back direction (mainly forward), and the posture of the foliage portion B1 is adjusted by the rake device 5 so that it can be easily raked, and the foliage portion B1 of the crop B to be extracted is pulled out. The foliage part B1 of the crop B which is not present is sown.

The weeding member 35 of the weeding device 4 extends from the vicinity of the lower portion of each weeding transmission case 30 in a forward downward slope, and has a foliage portion B1 facing in the left-right direction in preparation for scooping with the tines 34. It is designed to be gradually lifted and weeded. Here, each grass member 35 is formed into a forked portion 35A in the vicinity of its base portion (attachment portion to the case), and surrounds the lower portion of the transmission case 30 from the left and right sides, and at the scooping start portion of the tine 34. The foliage portion B1 is configured to guide the weeds.

The weeding member 35 corresponding to the shoulder of the ridge A
Is provided with a weed cover 35B which extends outward in the left-right direction and is bent in a "V" shape in a side view. The weed cover 35B covers the gauge wheel 3 from above. And the long foliage part B1 that had been laid down
Is prevented from being stepped on by the gauge wheel 3 when it is lifted by the weeding member 35 and reclined.

That is, the weeding device 4 uses the ridge A as the harvester 1.
When traveling along the ridges, the foliage portion B1 lying on the ridge A is gradually lifted by the weeding member 35 and the tine 3
By scooping up (paying up) with 4, the foliage part B1 is shaped in the front-back direction and squeezed from the left and right with the scraping device 5, where the weeding device 4 is on the ridge A. The foliage portion B1 of the crop B that has fallen over and is intricately intertwined is prepped in the front-back direction to prepare for the next scraping device 5.

As shown in FIG. 6, FIG. 7 and FIG. 8, the scraping device 5 makes it possible to circulate and transport an endless rotating body 38, which is an endless belt, over an upper driving pulley 36 and a lower driven pulley 37. The right and left pairs of wound-up scraping bodies are provided. Further, the endless rotating body 38, which is represented by an endless belt, has projecting claws 40 which are arranged in a row with a receding angle with respect to the transfer direction so as to be inclined.
The tips of 0 intersect with each other at the rear position corresponding to the central weed case 30 in the weeding device 4.

By circulating and transferring the left and right endless rolling bodies 38 in the Y direction shown in FIG. 6, the scraping claw 40 moves upward in the left-right direction and moves downward in the outer direction. The two stalks and leaves B1 that have been circulated and shaped in the anteroposterior direction by the weeding device 4 are lifted from the left and right in a squeezing shape to be linearly extended and inherited to the subsequent pulling and conveying device 6 ( The delivery is smooth and reliable.

At the scraping start portion of the scraping device 5 (the portion wound around the driven pulley 37), the tip of the scraping claw 40 is located in the vicinity of the plant base of the foliage portion B1 of the crop B. The weeding device 4 is configured so that it can be surely held in the left-right direction from the root portion of the foliage portion B1 that has been trimmed. As shown in FIG. 3, FIG. 7, and FIG. 8, the pulling-out and conveying device 6 includes an upper drive pulley 42 and a lower drive pulley 42 on the lower surface side of each of the pair of left and right support covers 41 arranged in a front downward slope. And a driven pulley 43 of the above, which is rotatably supported around a shaft center that is inclined upward as it goes forward, and the conveyor belts 44L and 44R exemplified by rubber belts are wound around the pulleys 42 and 43. 7 is configured so as to be circulated and transferred in the Z direction indicated by the arrow in FIG.

Therefore, the pulling / conveying device 6 is arranged so as to be inclined rearward so as to move upward as it goes rearward from the pulling-out start portion of the front portion (the portion wound around the driven pulley 43). This pulling and conveying device 6
With respect to the rearward ascending inclination, the scraping device 5 has a large rearward ascending inclination, and is drawn and conveyed near the front part of the scraping device 5 at the start of scraping, specifically, slightly upward. The extraction start sites of the device 6 are arranged close to each other.

By adopting such a configuration, as shown in FIG. 7, the roller F at the start point of pulling is widened, and the conveyor belts 44L and 44R are circulated and transferred in the Z direction shown by the arrow in FIG. The range of action at this time is widened to ensure the gripping and smoothing of the foliage portion and the subsequent pulling-out action, and the proximity to the scraping device 5 makes it possible to extend the foliage portion linearly. The escape of B1 to the outside is prevented.

Above and below the right end portion of the pulling / conveying device 6, there are provided foliage-releasing rotating bodies 45, such as star wheels, for dropping foliage, which is cutting waste, between the ridges A. ing. In addition, since the scraping action portion of the scraping device 5 is located until the pulling and conveying device 6 is being transferred, the long foliage portion B1 is prevented from falling during the transfer.

At the lower part (starting end side) of the pulling and conveying device 6, a positioning and conveying device 7 is provided so as to extend rearward.
This positioning and conveying device 7 is shown in FIGS. 4, 5, 7, and 8.
As shown in FIG. 5, the pair of left and right conveyor belts 46L and 46R each including an endless belt is provided, and the conveyor belts 46L and 46R are arranged so as to extend in a substantially horizontal direction from the inherited portion of the front portion toward the rear in the transfer direction, and are pulled out. The inheritance starting portion of the positioning and conveying device 7 is arranged in the vicinity of the extraction starting portion of the conveying device 6.

As shown in FIG. 7, each of the pair of left and right conveyor belts 46L, 46R is a drive pulley 47L, 47R and a driven pulley 4 which are rotatable about an axis in the vertical direction.
8L, 38R, tension pulleys 49L, 49R and guide pulleys 50L, 50R are wound around the drive pulleys 47L, 50L, 50R so as to be circulatively transferable in the Q direction shown in FIG.
When 47R is rotationally driven in the Q direction shown by the arrow in FIG.
The crop B can be transferred to the rear, and the foliage part B1 can be cut by the cutting device 8 while leaving the predetermined length in the middle of the transfer.

That is, in the above-mentioned construction, the foliage portion B1 which is extended substantially linearly by the scraping device 5 is sandwiched by the left and right transport belts 44L and 44R of the pull-out transport device 6 and transported backward. When the belts 44L, 4
Since 4R is a backward slope, the crop B of Article 2 is ridge A
Is gradually pulled out from. And after starting the withdrawal,
The left and right conveyor belts 46L and 46R of the positioning and conveying device 7 sandwich the lower part of the foliage portion B1 than the sandwiching part of the pulling and conveying device 6 and convey it backward.

At this time, the crop B is lifted by the left and right conveyor belts 44L and 44R of the pulling and conveying device 6, and the bulb portion (root portion in the case of root crops) B2 is left and right conveyor belt 46.
When abutting on the lower surface side of L, 46R, the rise of the bulb portion B2 with respect to the positioning and conveying device 7 is restricted and positioned,
After the rise of the bulb portion B2 is regulated, slippage occurs at the sandwiching portion of the foliage portion B1 by the pulling / conveying device 6, and the crop B is at a position of a substantially constant height from the upper surface of the ridge A, and The foliage portion B1 is stretched between the positioning and conveying device 7 and is conveyed backward.

Then, the conveyor belts 44L and 44R of the pulling / conveying device 6 for holding the upper portion of the foliage portion B1 and the foliage portion B1.
Conveyor belt 46 of the positioning conveyer 7 for holding the stock of
The foliage part B1 is cut by the cutting device 8 arranged in both rollers (triangular space) S with the foliage part B1 stretched across L and 46R. The bulb portion B2 is conveyed rearward while the root of B1 is clamped, while the upper portion of the cut stem / leaf portion B1 is discharged to the right by the leaf discharge rotating body 45. .

The left and right conveyor belts 46L and 46R of the positioning and conveying device 7 have a foliage-holding portion at a starting end side with a predetermined interval and at a terminating end side closely (or with a narrower interval than the starting end side). Left and right conveyor belts 46L, 4
The distance between the starting end side of the stalk-and-leaves sandwiching portion of 6R is set to be larger than the end side. In addition, the left and right transport belts 46L and 46R
The guide pulley 50
L and 50R are in close contact with each other on the front side of the foliage cutting position by the cutting device 8 (or a narrower interval than the starting end side), and the facing interval C between the left and right conveyor belts 46L and 46R is from the starting end to the cutting position. It is gradually narrowed toward the end from the cutting position of the foliage portion to the end (or there is a slight gap).

Therefore, the left and right transport belts 46L, 46
Until the rise of the bulb portion B2 is restricted from the start end of the foliage portion nipping portion of R, the nipping force of the foliage portion B1 by the conveyor belts 46L and 46R is weak, and from the foliage portion cutting position to the foliage portion cutting end,
The clamping force is strong. I configured it like this
While the foliage portion B1 is being sandwiched by the positioning and conveying device 7 and conveyed backward, the bulb portion B2 is conveyed by the conveyor belts 46L, 46.
Until it contacts R and its rise is regulated, bulb part B1
In order to allow the rise of the foliage, a slip must occur between the conveyor belts 46L and 46R and the foliage portion B1.
This is because, after cutting 1, the strain source of the foliage portion B1 must be firmly clamped so that the bulb portion B2 does not fall.

The positioning / conveying device 7 does not have to be horizontal toward the rear, but is inclined rearward more gently than the pulling-out conveying device 6 (inclined so as to move upward toward the rear). It may have been done. Further, the clamping force of the foliage portion B1 by the conveyor belts 46L and 46R may be weak until the bulb portion B2 is regulated to be raised by the positioning and conveying device 7, and may be strong after the foliage portion cutting position.

Further, in the illustrated example, the positioning and conveying device 7 is composed of one belt conveyor having a pair of left and right conveying belts, but the present invention is not limited to this, and the bulb portion B2 is positioned and conveyed. 7, the belt conveyor on the front side for nipping and conveying the foliage portion B1 and the bulb portion B2
After the rise regulation of No. 1, the foliage portion B1 is inherited from the front side belt conveyor, and the foliage portion B1 is sandwiched and conveyed to the aligning and discharging device 9 via the cutting device 8 and positioned by two belt conveyors including a rear side belt conveyor. The carrier device 7 may be configured.

The conveyor belts 46L and 46R are the crop B.
In order to reduce the pain at the neck contact portion of the bulb portion B2, since the root of the foliage portion B1 is sandwiched, it is preferable that the outer peripheral surface of the endless rubber belt is superposed with a sponge belt or the like. In addition, the transport speed of the pull-out transport device 6 is faster than the transport speed of the positioning transport device 7, so that the vertical posture of the crop B is constant (or is not tilted largely).
Has become.

As shown in FIG. 4, the cutting device 8 is provided with a disk sawtooth rotary cutter 54. The cutter 54 is disposed substantially horizontally and is rotatably supported by a support case about an axis in the vertical direction. The support case is provided in a guide groove 65 of a support plate 64 mounted and fixed to the machine frame 12 side. Along the horizontal direction, the cutter 54 is supported so as to move up and down in an oblique direction inclining downward as it goes forward.

Further, the power from the engine 11 is transmitted to the cutter 54 through a power transmission mechanism including the drive shaft 25, the first winding transmission body 77 and the second winding transmission body 78. ing. An aligning and discharging device 9 is provided at the rear part of the positioning and conveying device 7, and the crops B cut and cut, leaving the stir and leaf parts B1 that can be bundled, are aligned and discharged on the ridge A.

The portion where the guide belts 50L and 50R are closely attached to the conveyor belts 46L and 46R is formed by the cutter 54.
It is set so as to be positioned in front of the cutter 54 when the is positioned at the lowermost end. In addition, the guide roller 50
The L and 50R may be movable back and forth along the conveyor belts 46L and 46R. 7 and 8, the aligning and discharging device 9 is arranged at the rear portion of the cutting device 8, is above the conveyor belts 46L and 46R of the positioning and conveying device 7, and holds the nipping surface (transportation) of the belts 46L and 46R. Direction) and an upper guide rod 80 that is long in the front-rear direction and that is long below the conveyor belts 46L and 46R, and that is long in the front-rear direction that is arranged crosswise with respect to the upper guide rod 80. Equipped with a lower guide rod 81 of
A rear end of the lower guide rod 81 is bent downward, and a guide plate 82 having a vertical plate surface is fixed to one of the lower guide rods 81. The lower guide rods 81 are bent downward. A discharge belt 84 having a projection 84A wound around an upper drive pulley 83A and a lower driven pulley 83B is provided on the rear side of the portion 81A.

Further, the driven pulley 4 of the conveyor belt 46R
The star wheel 85 is rotatably mounted coaxially with the 8R, and the star wheel 85 is driven in the discharging direction by the transfer force of the conveyor belt 46R that transfers in the Q direction shown by the arrow. The discharge belt 84 can be circulated and transferred in the direction of arrow T in FIG. 8 by the rotational power of the driven pulley 48L of the conveyor belt 46L.

The aligning and discharging device 9 uses the guide action of the upper guide rod 80 and the rotating force of the star wheel 85 to guide the foliage portion B1 of the crop B, which is cut by the cutting device 8 and is conveyed backward by the positioning and conveying device 7. Change direction toward the right side (gauge wheel 3 side, furrow groove A1 side),
On the other hand, the bulb portion B2 is transferred to the rear while being turned leftward by the lower guide rod 81 and the guide plate 82, and the stem portion B1 is moved by the downward bent portion 81A and the protrusion 84A of the discharge belt 84.
While slowly supporting and supporting the right drive wheel 2A, it is dropped and discharged onto the ridge A inwardly, and the foliage portions B1 are arranged in a row so as to be directed toward the ridge groove A1 and are discharged to the left and right end portions of the ridge A, Here, the drying of the crop B on the ridges A is promoted, and the easiness of the binding work by hand by collecting several pieces is ensured.

When the two harvests are completed by the harvester 1 according to the present invention on the outward path, the steering wheel 51 is lifted to change the direction of the drive wheels 2A and 2B from the starting point, and the remaining two
The strips are harvested on the return trip as before. 1 and 2
As shown in FIG. 2, on the lower left and right sides of the machine body 1A, the crop B on the ridge A that has been dug up and missed by the pulling and conveying device 6, the crop B dropped from the positioning and conveying device 7, and the crop discharged from the aligning and discharging device 9 are shown. B, etc. should not roll down to the outside of the machine body 1A in the left-right direction and fall into the furrow groove A1, and to the side of the crop B that has not been dug up yet (the side where the furrow A has not been dug or foliage-cut). Restricting members 56L and 56R are provided to restrict the rollers from rolling.

The left and right restricting members 56L and 56R are made of elastic plate material such as a rubber plate (or a soft resin plate) in this embodiment, and are elastically deformable even if they interfere with the sub-soiler 10 and can escape. However, the present invention is not limited to this, and may be made of a plate material such as a metal plate or a hard resin plate. In that case, the regulating members 56L and 56R are displaced in the left-right direction with respect to the subsoiler 10. Is provided.

Further, the regulating members 56L and 56R are arranged at the rear of the left and right sub-soilers 10, respectively.
The front ends of L and 56R are close to the subsoiler 10 so as to restrict the crop B, which is dug up and is not pinched by the pulling and conveying device 6, from passing between the subsoiler 10 and the restricting members 56L and 56R. That is, the front ends of the regulation members 56L and 56R are the same as the regulation members 56L and 56R.
Is located directly behind the subsoiler 10, it is located at a position in contact with the subsoiler 10 or with a slight gap.

The front end sides of the left and right restricting members 56L, 56R are arranged in the left-right direction with respect to the sub-soiler 10 when the restricting members 56L, 56R are displaced from the sub-soiler 10 in one lateral direction. They are positioned so that they overlap slightly with each other (it does not have to overlap).
In short, when the subsoiler 10 is at the frontmost position,
It suffices that the distance between the subsoiler 10 and the restriction members 56L and 56R in the front-rear direction is such that the crop B does not pass through.

The midpoints of the regulating members 56L and 56R are located laterally outside the positioning and conveying device 7, and the rear portions of the regulating members 56L and 56R are located laterally outside the aligning and discharging device 9. The rear portions of the regulating members 56L and 56R are positioned so as to overlap the aligning and discharging device 9 when viewed in the left-right direction. In addition, as shown in FIG. 3 (arrow E in the drawing indicates the forward direction of the onion harvester 1, that is, the front), the right regulating member 56R, that is, the regulating member 56R located on the end side of the ridge A, is the ridge. Although it is arranged substantially along the longitudinal direction of A, the left regulating member 56L, that is, the regulating member 56L located on the central side of the ridge A, is dug from the central portion of the ridge A toward the rear and cuts the foliage. It is inclined so as to move toward the crop line (the end portion in the left-right direction of the ridge A) on the side that is being processed (worked).

In the illustrated example, it is inclined (so as to move to the right as it goes rearward (or to the regulating member 56R located on the end side of the ridge A)). Therefore, the rear end side of the left regulating member 56L is in contact with the ridge A center side of the crop B located on the ridge A center side among the crops B that have been dug and foliage-cutting processing, and the longitudinal direction of the ridge A. It is located closer to the left-right direction end of the ridge A on the crop B side that is being dug and foliage-cutting than the line segment G along the line).

As described above, since the left regulating member 56L is inclined, the crop B that has been dug up and failed to be pinched by the pulling and conveying device 6, the crop B that has dropped from the positioning and conveying device 7, and the aligning and discharging device 9 Among the crops B discharged from the ridge A to the ridge A, the crop B or the like that is about to roll toward the center side of the ridge A can be moved to the end from the center part of the ridge A, whereby, After the onion harvesting machine 1 reciprocates the ridge A and excavates and finishes the foliage cutting process, a space where a worker walks is secured on the center side of the ridge A.

In the present embodiment, the regulation member 56L on the center side of the ridge A is illustrated as having a slanted shape, but at least the rear side of the regulation member 56L may be slanted. (That is, the restricting member 56L includes the one in which the front part to the rear part is inclined as described above). Further, the rear portion of the regulating member 56L on the center side of the ridge A may be largely extended rearward from the alignment discharge device 9, and the extended portion may be inclined as described above.

By the way, there are ridges A and ridges A higher than the standard height in the ridges A, and in the case of the ridges A having a low height, as shown in FIG. There arises a large gap between them, and the problem arises that the crop B rolls down into the furrow groove and rolls toward the person who has not yet excavated and cut the foliage. Further, in the case of the high ridge A, as shown in FIG. 16, the regulating members 56L, 5L are
The lower end side of 6R is in contact with the ridge A and is deformed into a curved shape, and the regulating members 56L and 56R closer to the ridge groove are the crop B.
There is a case in which the crop B is pushed in the direction of arrow J and escapes, and the crop B falls into the furrow groove. Further, the regulation member 56L on the central portion side of the ridge A
In this case, the groove 101 is formed on the ridge A at the curved deformation portion on the lower end side of the regulation member 56L, and the crop B is formed in the groove 101.
May fall down. If the crop B falls into this groove 101, it hinders the work on the return path and excavates.
It also hinders the worker from walking in the central portion of the ridge A after finishing the foliage cutting process.

Therefore, in the present embodiment, FIG. 1 and FIG.
As shown in, the left and right restricting members 56L and 56R are mounted and supported on the machine body frame 12 through height adjusting means 57 so that the vertical position can be adjusted freely. This height adjusting means 57
Is composed of a pair of front and rear rods 58, a bracket 59 fixed to the main frame member 12A, a stop pin 60 and the like.

The rod 58 is arranged in the vertical direction, and the lower end side thereof is fixed to the strip plate 61 fixed to the upper portions of the regulating members 56L and 56R in the front-rear direction by bolts and nuts, and also in the vertical direction (axis). Pin insertion hole 6 toward the center)
A large number of 2 are formed at equal intervals. In addition, the bracket 59 has a vertical wall portion 59a fixed to the main frame member 12A.
And a lateral wall portion 59b projecting outward in the left-right direction from the upper end of the vertical wall portion 59a are formed in an L shape, and a rod insertion hole 63 through which the rod 58 is vertically movable is formed in the lateral wall portion 59b. Has been done.

By inserting the stop pin 60 into the pin insertion hole 62 above the lateral wall portion 59b of the bracket 59, the downward movement of the rod 58 is restricted. Therefore, by inserting the stop pin 60 into the arbitrary pin insertion hole 62, the restriction members 56L and 56R are inserted.
The height of the ridge A can be adjusted. By adjusting the height of the regulating members 56L and 56R, the regulating member 56L, 56L can be adjusted depending on the ridge A that is higher or lower than the standard height ridge A. 56R can be set to an appropriate height.

The height adjusting means 56 is not limited to that of this embodiment, but may be constituted by a parallel movement mechanism as shown in FIG. In this case, in order to restrict the vertical movement of the restriction members 56L and 56R, the pin 68 of the one link 66 that slides in the guide groove 67 is threaded (may be a butterfly bolt or a knob bolt). This is done by screwing the nut member 69 onto this screw. Further, a screw may be cut in the rod 58 instead of the pin insertion hole 62, and a pair of nuts arranged so as to sandwich the lateral wall portion 59b of the bracket 59 from above and below may be screwed into the screw. , And other various methods are adopted.

As shown in FIGS. 4 and 9, the onion harvesting machine 1 swings the aligning and discharging device 9 around the axis of the drive shaft 71 that drives the drive pulley 83A to rotate and drive the aligning and discharging device. The gap K between the device 9 and the lower bent portion 81A of the lower guide rod 81 can be adjusted. Explaining this gap K adjusting mechanism in detail, the drive shaft 71,
Further, an arc-shaped guide groove 74 centered on the drive shaft 71 is formed in the mounting plate 73 to which the driven shaft 72 supporting the driven pulley 83B is attached, and the pin 75 inserted into the guide groove 74 is attached to the body frame 12 Support plate 7 fixed to the side
By fixing it to 6, the aligning and discharging device 9 is swingable around the axis of the drive shaft 71.

A boss 86 is fitted to the driven shaft 72 so as to be rotatable relative to the shaft center. A front end of an adjusting rod 87 is fixed to the boss 86, and a screw portion 87a is provided at the rear of the adjusting rod 87. And a handle 88 is attached and fixed to the rear end of the adjusting rod 87. Further, a nut member 89 is screwed into the threaded portion 87a of the adjusting rod 87, and the nut member 89 is rotatable around a shaft center in the left-right direction via a pivot 90 on a support plate 91 fixed to the machine body frame 12 side. Supported by.

Therefore, by rotating the adjusting rod 87 around the axis by the handle 88, the rod 87 moves in the axial direction, whereby the aligning and ejecting device 9 is moved.
Swings around the axis of the drive shaft 71 so that the gap K can be easily adjusted in a short time. During the operation by the onion harvester 1, the foliage portions B1 are denser than usual and are sent between the aligning and discharging device 9 and the lower bent portion 81A of the lower guide rod 81 depending on the growing state of the crop B. However, in such a case, by adjusting the gap K between the alignment discharge device 9 and the lower bent portion 81A of the lower guide rod 81 by the gap K adjusting mechanism,
Can respond promptly.

The distance between the lower end of the aligning and discharging device 9 and the upper surface of the ridge A is set so that the projection B of the discharging belt 84 does not come into contact with the crop B on the ridge A. Can be easily performed by the gap K adjusting mechanism. FIG. 13 shows a modified example of the gap K adjusting mechanism. Explaining different points, the rear part of the adjusting rod 87 is
A spring receiving member 92 rotatably supported on the support plate 91 about the axis in the left-right direction is inserted movably in the axial direction, and the adjustment rod 87 has a spring receiving member on the front side of the spring receiving member 92. A coil spring 94 is inserted between the spring receiving members 92 and 93 in a compressed state. In addition, the screw portion 87 of the adjusting rod 87
Nuts 95A and 95B are screwed onto the rear side of the spring receiving member 92 and the front side of the spring receiving member 93 of a, respectively.

Therefore, the foliage portions B1 are more densely packed than usual, and the aligning and discharging device 9 and the lower bent portion 8 of the lower guide rod 81 are gathered.
1A, the adjusting rod 87 moves backward against the urging force of the coil spring 94, so that the aligning and discharging device 9 can escape. The nut 9
By screwing and loosening 5A and 95B, the biasing force of the coil spring and the gap K can be adjusted.

The onion harvester 1 is shown in FIGS.
As shown in FIG. 7, a guide cover 9 is provided on the outer side in the left-right direction of the drive pulley 36 of the scraping device 5 to remove the foliage portion B1 carried by the scraping claw 40 of the scraping device 5 in the lateral direction.
7 is provided. Most of the cut foliage portion B1 of the crop B is removed to the furrow groove A1 by the pulling and conveying device 6, but a part of the foliage portion B1 is scraped by the scraping device 40.
Carried by.

On the other hand, between the scraping device 5 and the support cover 41 of the pulling / conveying device 6, there is a protective cover 98 for covering the support shaft of the scraping device 5, the transmission mechanism and the like, and the guide cover 97 is not provided. And the foliage part B carried by the scraping claw 40
1 is deposited on the support cover 41 between the protective cover 98 and the support plate 16 that supports the weeding device 4, and it is difficult to remove the accumulated foliage portion B1. .

Therefore, the guide cover 97 described above is provided between the scraping device 5 and the support cover 41 from the rear end side of the drive pulley 36 to the support plate 16 so that the guide cover 97 can be carried by the scraping claw 40. The foliage portion B1 is removed outward in the left-right direction. The angle θ formed between the guide cover 97 and the scraping claw 40 is an obtuse angle so that the foliage portion B1 can be easily removed in the direction of the arrow in FIG.

[0063]

According to the present invention, the regulating member prevents the dug up crop from rolling outward in the left and right direction of the machine body, and also ensures that the dug up crop is located on the lateral end portion side of the ridge. It is possible to bring them closer to each other, and a worker's walking space can be secured in the center of the ridge. Further, by providing height adjusting means for adjusting the vertical position of the regulating member,
Depending on the ridge higher or lower than the standard, the regulating member can be positioned in a proper position with respect to the ridge.

[Brief description of drawings]

FIG. 1 is a side view of an essential part of the invention.

FIG. 2 is a front sectional view of an essential part of the invention.

FIG. 3 is a plan view of a regulation member.

FIG. 4 is a side view of the onion harvester.

FIG. 5 is a plan view of an onion harvester.

FIG. 6 is a front view of an onion harvester.

FIG. 7 is a plan view showing the main part of the onion harvester.

FIG. 8 is a schematic side view showing the main part of the onion harvester.

FIG. 9 is a side view of a mechanism for adjusting a gap between the alignment discharge device and the lower guide rod.

FIG. 10 is a plan view of the scraping device.

11 is a diagram showing a line DD in FIG.

FIG. 12 is a view showing a line HH of FIG.

FIG. 13 is a side view showing another example of a mechanism for adjusting the gap between the alignment discharge device and the lower guide rod.

FIG. 14 is a side view showing a modified example of the height adjusting means.

FIG. 15 is a front view of a restriction member for explaining the problem.

FIG. 16 is a front view of the restriction member for explaining the problem.

[Explanation of symbols]

56L regulation member 56R regulation member 57 Height adjusting means B crops (onions)

─────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-10-23814 (JP, A) JP-A-11-9047 (JP, A) Actual development 50-96545 (JP, U) Actual development 52- 148722 (JP, U) Actual development Sho 59-117320 (JP, U) (58) Fields investigated (Int.Cl. ⁷ , DB name) A01D 13/00-33/14

Claims (3)

(57) [Claims] 1. The machine is reciprocally moved along the longitudinal direction of the ridge, and in the forward path, crops on the left and right sides of the ridge are excavated and foliar cutting processing is performed to excavate the crop on the ridge. On the side of
While leaving it on the end side , in the return route, the crops on the left and right sides of the ridge are excavated and foliar cutting processing is performed to dig the crop on the ridge.
In the harvester for crops that was left on the end side of the raising side , on the left and right sides of the machine, there are restriction members that restrict the dug up crops from rolling outward in the left and right direction of the machine. Installed in the front-back direction, the left and right regulating members dig up crops on the ridges.
Located in the center of the ridge so that it can be brought closer to the end side of the
At least the rear part is inclined so that at least the rear part moves toward the rear from the center of the ridge to the left and right ends of the ridge on which the crop digging and foliage cutting is being performed. Regulating member located at the end of the ridge
Is a harvester for crops, which is arranged substantially along the longitudinal direction of the ridges . 2. A conveys the crop dug in raised member drilling backwards, disconnects the foliage portion in the middle of its transport, a discharge means for releasing the crop on ridges in the transport terminating, left and right
The regulating member of the front part is close to the excavator and the rear part is
The discharge member and the regulating member provided so as to wrap when viewed from the side and located on the center side of the ridge are
From the edge to the rear edge,
From the center of the side that is excavating crops and cutting leaves
It is inclined so that it moves to the left and right ends of the ridge.
Harvesters crops according to claim 1, wherein the that. 3. The crop harvesting machine according to claim 1, further comprising height adjusting means for adjusting the vertical position of the regulating member.