WO2015141079A1 - Welsh onion harvester - Google Patents

Abstract

Provided is a Welsh onion harvester that is capable of quickly correcting position deviation, if occurs, between Welsh onions and a harvesting section thereof. The Welsh onion harvester comprising a running machine body capable of self-running and the harvesting section for digging and harvesting Welsh onions from a ridge in which the Welsh onions have been grown, wherein the harvesting section is provided, as individual operating parts, with: a digging part for digging the Welsh onions; a conveying part for conveying backward the Welsh onions dug by the digging part; and a scraping part for scraping off soil lumps sticking to the rhizomes of the Welsh onions while the Welsh onions are conveyed by the conveying part. These operating parts are arranged in front of the running machine body on a virtual straight line that extends in the the front-back direction. In the running machine body, a riding step part on which an operator rides is formed backward the aforesaid individual operating parts and arranged on the same virtual straight line.

Description

Green onion harvester

The present invention relates to a leek harvester, and more particularly, to a leek harvester that enables a series of harvesting operations from digging and collecting leek to harvesting leek.

Conventionally, there is one disclosed in Patent Document 1 as one form of a leek harvester. Patent Document 1 discloses a leek harvesting machine that enables a series of harvesting operations until each leek is harvested by arranging each working unit on the machine body. That is, the green onion harvester disclosed in Patent Document 1 includes, as each working unit, a digging part that digs up the green onion from the straw that cultivates the green onion, a conveyance part that conveys the green onion digging up in the digging part back, and conveyance A scraping unit that scrapes off a lump that adheres to the rhizome part of the green onion while being conveyed by the unit, and a collecting unit that collects the leek from which the adhered soil lump has been scraped off by the scraping unit. The right rear portion of the aircraft is provided with a boarding step unit on which the operator boardes and an operation unit on which the operator boardes and operates the boarding step unit.

JP 2003-310021 A

However, in the above-mentioned onion harvesting machine, although the operator boarded on the boarding step unit can easily operate the operation unit, the standing position of the operator is biased to the right side of the machine body. It is difficult to confirm even if the leek is misaligned in the left-right direction in each working part, since the leek conveying process from the digging up to the scraping of the adhered soil lump is visually confirmed from the rear right side. For this reason, even if the green onion is damaged due to misalignment, there is a problem in that it cannot be promptly dealt with.

Therefore, the present invention provides each work at the standing position of the worker who has boarded the boarding step unit by arranging each working unit of the harvesting unit and the boarding step unit on a virtual collinear line extending in the front-rear direction. The work situation of the department, and also the onion harvesting situation can be easily seen from immediately after, and even if there is a misalignment between the onion and the harvesting part, the onion harvesting can be dealt with promptly The purpose is to provide a machine.

The invention described in claim 1
It is a leek harvesting machine equipped with a harvesting part that digs up and harvests green onions from the straw that cultivates green onions on a self-propelled traveling machine body,
The harvesting section, as each working section, scrapes off the lump that digs up the leek, the conveyance section that conveys the leek that has been dug up by the digging up section, and the lump that adheres to the rhizome of the leek while being conveyed by the conveyance section A scraping section, and
Each working unit is arranged on a virtual collinear line extending in the front-rear direction in front of the traveling aircraft,
The traveling machine body is characterized in that a boarding step portion on which an operator gets on is arranged behind each working portion and on a virtual collinear line.

In the first aspect of the present invention, since each working part of the harvesting part and the boarding step part are arranged on a virtual collinear line extending in the front-rear direction, at the standing position of the worker boarding the boarding step part The working status of each working unit, and further the onion harvesting status can be easily seen from the immediate rear. Therefore, even if a positional shift occurs between the onion and the harvesting part, it can be dealt with promptly. For example, it is possible to quickly take measures such as adjusting the position of the traveling machine body that causes the digging portion to enter the leek that is growing green onions. As a result, it is possible to reduce the damage of the onion due to the positional deviation between the onion and the harvesting part.

Invention of Claim 2 is invention of Claim 1, Comprising:
The transport unit is arranged in a slanted shape with a front, a rear, and a height, and is configured to transport the green onion rearward and upward while sandwiching a midway part of the green onion that has been dug up.

According to the second aspect of the present invention, since the leek that has been dug up is conveyed rearward and upward by the conveyance unit, an operator who has boarded the boarding step unit immediately after that confirms the state of conveyance of the leek by the conveyance unit. Can be visually recognized. For this reason, for example, it is possible to easily confirm the positional deviation in the left-right direction between the leek and the digging portion, the deviation in the digging depth due to the digging portion, and the like. Therefore, even if a positional shift occurs between the leek and the harvesting part, it can be dealt with promptly. As a result, it is possible to reduce the damage of the onion due to the positional deviation between the onion and the harvesting part.

The invention according to claim 3 is the invention according to claim 1 or 2, wherein the green onion that is conveyed toward the rear upper side in a standing posture by the conveyance unit is inherited at a position immediately after the conveyance unit. The posture is changed from the standing posture to the inclined posture inclined outward, and the posture changing / aligning part for arranging is arranged,
The posture changing / aligning section is characterized in that the green onions are transported toward one side rearward and upward while changing and aligning the posture.

In the invention according to claim 3, the posture changing / aligning unit aligns the green onions while changing the posture from the standing posture to the tilted posture, and conveys the green onion toward the rear side upward. The green onions are shifted in a tilted position to one side of the standing position of the boarded worker. Therefore, the operator can easily confirm the whole of each green onion. Further, since the green onions are transported toward the rear side and the upper side in the direction of approaching the worker, the worker can touch the green onions close to him. Therefore, the operator can easily perform an adjustment operation such as dropping the adhered soil block left on the leek while visually checking the front. Therefore, it is possible to improve the harvesting work efficiency and reduce the worker's fatigue.

Invention of Claim 4 is invention of Claim 3, Comprising:
A plate-shaped collecting unit that collects green onions is arranged at the lower rear position of the posture changing / aligning unit so that the green onions that have been posture changed / aligned by the posture changing / aligning unit are collected by the collecting unit. It is characterized by that.

In the invention according to claim 4, the green onion whose posture is changed by the posture changing / aligning unit automatically falls on the plate-shaped collecting unit at one side of the standing position of the worker who has boarded the boarding step unit. Thus, since collection and storage are performed, the collection work does not hinder workers who perform various operations. At that time, since the green onions are collected in an orderly manner on the collection unit, the operator does not need to correct the collection posture of the collected green onions. Therefore, also from this point, it is possible to improve the harvesting work efficiency and reduce the worker's fatigue.

Invention of Claim 5 is invention of Claim 4, Comprising:
An operation unit for operating the traveling machine body and each working unit is disposed on the side opposite to the side on which the collection unit is disposed, with the boarding step unit interposed therebetween.

In the invention according to claim 5, since the operation unit is disposed on the side opposite to the side on which the collection unit is disposed, the operation unit does not block the operator's front view. Therefore, the harvesting work efficiency can be improved also from this point.

According to the present invention, each work section of the harvesting section and the boarding step section are arranged on a virtual collinear line extending in the front-rear direction, so that each work can be performed at the standing position of the worker boarding the boarding step section. The work situation of the department, and also the onion harvesting situation can be easily seen from immediately after, and even if there is a misalignment between the onion and the harvesting part, the onion harvesting can be dealt with promptly Machine can be provided.

The perspective view of the leek harvesting machine of 1st Embodiment. 1 is a perspective explanatory view of a leek harvester according to a first embodiment. FIG. Explanatory drawing of the left side of the leek harvesting machine of 1st Embodiment. Explanatory drawing of the right side of the leek harvesting machine of 1st Embodiment. Plane explanatory drawing of the leek harvesting machine of 1st Embodiment. Front explanatory drawing of the leek harvesting machine of the first embodiment. Cross-sectional left side explanatory drawing of the leek harvesting machine of 1st Embodiment. The rear view of the leek harvesting machine of 1st Embodiment. FIG. 3 is a perspective explanatory view of a scraping part according to the first embodiment. Front explanatory drawing from the conveyance direction of the leek of the scraping part of the first embodiment. Explanatory drawing of the left side of the scraping part of 1st Embodiment. 1 is a conceptual explanatory diagram of a power transmission mechanism of a first embodiment. FIG. Explanatory drawing of the left side of the leek harvesting machine of 2nd Embodiment. Explanatory drawing of the right side of the leek harvesting machine of 2nd Embodiment. Plane explanatory drawing of the leek harvesting machine of 2nd Embodiment. Front explanatory drawing of the leek harvesting machine of 2nd Embodiment. The rear view of the leek harvesting machine of 2nd Embodiment. Cross-sectional left side explanatory drawing of the leek harvesting machine of 2nd Embodiment. The decomposition explanatory view of each operation part of the harvesting part of a 2nd embodiment. Front explanatory drawing of the crushed shoulder part of 2nd Embodiment. Side surface explanatory drawing of the shoulder collapse part of 2nd Embodiment. Plane explanatory drawing of the leaf part side guide body and rhizome part side guide body of 2nd Embodiment. Side surface explanatory drawing of the leaf part side guide body and rhizome part side guide body of 2nd Embodiment. Explanatory drawing of the leaf part side guide body of 2nd Embodiment.

Hereinafter, embodiments of the present invention (first embodiment and second embodiment) will be described with reference to the drawings.

I. Description of First Embodiment A1 shown in FIGS. 1 to 8 is a leek harvester as a first embodiment. First, an overall configuration of the leek harvester A1 will be schematically described.

[Schematic description of the overall structure of the leek harvester]
The green onion harvester A1 includes a harvesting unit 2 that digs and harvests the green onion N from the straw U where the green onion N is cultivated on the traveling machine 1 capable of self-running. In the first embodiment, the green onion N is a long green onion having a rhizome Na and a leaf Nb.

The traveling machine body 1 has an airframe frame 11 formed between a pair of left and right crawler- type traveling parts 10 and 10 formed in a three-dimensional frame. An engine 12 is mounted on the right rear portion of the machine body frame 11 so as to be positioned rearward and upward of the left traveling unit 10. A mission case 13 is disposed between the left and right traveling parts 10 and 10 at the lower part of the body frame 11. A mission case 13 is interlocked with the engine 12. On the upper right side of the machine body frame 11, an operation unit 14 for steering / shifting the traveling units 10, 10 and harvesting operation of the harvesting unit 2 is disposed. At the rear end of the machine body frame 11, a horizontal plate-like boarding step unit 24 on which the worker Op rides is located behind each working unit of the harvesting unit 2, which will be described later, and on a virtual collinear line L. It is arranged in a protruding shape toward the rear. As shown in FIG. 5, the virtual collinear line L is a virtual straight line extending in the front-rear direction at the center of the left-right width of the traveling machine body 1. 15 is a main transmission lever, 16 is a travel / work lever, 17 is a left side clutch lever, 18 is a right side clutch lever, and 19 is an accelerator lever.

The boarding step part 24 includes a fixed-side step piece 94 in the front half part and a movable-side step in the latter half part in which the front end edge part is pivotally connected to the rear end edge part of the fixed side step piece 94 via a pivotal connection part 96. It consists of a piece 95. The fixed-side step piece 94 has a front end edge portion fixed to a step stay 97 provided at a lower end of the rear end of the machine body frame 11 so as to project horizontally toward the rear. The movable-side step piece 95 is rotated in the arrival direction e around the pivot connection portion 96 between a use posture P3 that projects horizontally rearward and a non-use posture P4 that stands up upward. The posture can be changed.

In this way, the horizontal plate-like boarding step unit 24 on which the worker Op is boarding is behind the machine body frame frame 11 behind each working unit of the harvesting unit 2 described later and on the virtual collinear line L. Since it is arranged so as to project rearward at the end, the operator Op rides on the boarding step unit 24 as shown in FIG. It is possible to stand up at a position immediately after the digging portion 20 and the conveying portion 21 that are arranged parallel to the front and rear and rear inclined shapes. Therefore, the worker Op can obtain the harvested green onion N from the position immediately below the sight line Ls of the worker Op in the conveyance space between the digging portion 20 and the conveyance portion 21 and the conveyance space immediately above the conveyance portion 21. The conveyance in the direction approaching the worker Op can be steadily seen in the field of view of the worker Op viewing the front.

The harvesting section 2 includes, as each working section, a digging section 20 that digs up the green onion N, a conveyance section 21 that conveys the green onion N digged up by the digging and raising section 20 toward the rear upper side, A scraping unit 22 that scrapes off a lump attached to the rhizome Na and a green onion N inherited from the transport unit 21 while changing and aligning the posture toward one rear upper side (left rear upper side in the first embodiment) And a posture change / alignment unit 23 to be conveyed. The digging part 20, the conveying part 21, and the scraping part 22, which are each working part, are arranged on a virtual collinear line L extending in the front-rear direction in front of the traveling machine body 1 and behind these working parts. In addition, on the virtual collinear line L, the boarding step unit 24 provided in the traveling machine body 1 is disposed. That is, on the virtual collinear line L that is the left and right center line of the traveling machine body 1, the digging portion 20, the transporting portion 21, the scraping portion 22, and the boarding step portion 24 are arranged in a line in the front-rear direction.

The digging portion 20 pivotally supports a base end portion of a rectangular frame-shaped support frame 30 formed by extending in the front-rear direction on the body frame frame 11 via a pivot 31 having an axis line in the left-right direction. Yes. On the support frame 30, a digging conveyor 32, which is a so-called bar conveyor, is placed. On the starting end (front end) of the digging conveyor 32, the digging blade 33 is attached in a projecting manner toward the front. The digging blade 33 has a plate-like base end side half 33a extending forward, and the tip end half 33b jumps upward from the front end edge of the base end half 33a. With a horizontal blade.

An elevating cylinder 37 that extends and contracts in the front-rear direction is placed between a cylinder stay 35 provided on the machine body frame 11 and an elevating arm 36 that is erected upward from a middle part of the pivot 31. . A connecting piece 39 is interposed between the base end portion of the elevating arm 36 and the left and right extending pieces 30 a of the support frame 30. The digging portion 20 can be moved up and down by the lifting cylinder 37, and the conveying portion 21 and the scraping portion 22 are also configured to be lifted and lowered integrally with the digging portion 20. Reference numeral 38 denotes an elevating operation lever for elevating the digging portion 20 and the like.

In the digging portion 20 configured as described above, when the leek N is harvested, the digging portion 20 is appropriately lowered by the elevating cylinder 37, and the digging conveyor 32 is arranged in an inclined posture with a front low and a high height. At the same time, the front end side half 33b of the digging blade 33 is arranged to be close to the field G surface in a substantially horizontal manner. In such a state, as the traveling machine body 1 travels forward, the tip side half 33b of the digging blade 33 enters substantially horizontally toward the front with respect to the straw U on which the green onions N are cultivated. In addition, the green onion N is dug up from directly below the rhizome Na of the green onion N, and the proximal half part 33a of the dug up blade 33 slides and transfers the green onion N together with the soil mass D1.

Then, the scalloped green onion N is transferred to the rear upper side while sliding on the upper surface of the base end side half 33a of the digging blade 33, and the leaf part Nb of the green onion N is sandwiched by the transport unit 21 described later, On the other hand, the rhizome portion Na of the green onion N to which the soil mass D1 is adhered is dug up from the proximal half 33a of the digging blade 33 and transferred to the conveyor 32, and further conveyed rearward and upward by the digging conveyor 32. The At this time, the green onions N are transported rearward and upward in the standing posture cultivated in the straw U.

The conveying part 21 is arranged in a slanted shape with front and rear heights in parallel with the digging conveyor 32 of the digging part 20 immediately above the digging part 20, and the midway part of the leek N in the standing posture digging up is laterally In this state, the paper is conveyed toward the rear upper side.

That is, the conveyance unit 21 is dug up via a pair of left and right front and rear support frames 40 and 41 and a conveyance support frame 46 and is arranged in parallel and directly above the conveyor 32. And the conveyance part 21 has arrange | positioned and comprised the left-right paired conveyance bodies 42 and 42 extended | stretched in the front-back direction. The transport body 42 is formed by winding a transport belt 45 around a driven pulley 43 and a drive pulley 44 that are arranged at intervals in the front-rear direction. The conveying belt forward path side portions 45a and 45a that are transported from the start end portion (front end portion) to the end end portion (rear end portion) of both the transport bodies 42 and 42 facing left and right are brought into surface contact in a face-to-face state, While sandwiching the leaf portion Nb of N, the green onion N is conveyed rearward and upward in the sandwiched state.

The left front support frame 40 extends vertically and is interposed between the left side of the digging conveyor 32 and the front part of the left transport body 42. Similarly, the right front support frame 40 extends in the vertical direction and is interposed between the right side portion of the digging conveyor 32 and the front portion of the right transport body 42. A pair of left and right drive shaft cases 48, 48 that support a pair of left and right pulley drive shafts 85, 85, which will be described later, stand on the left and right sides of a transmission horizontal shaft case 47 that supports a transfer unit transmission horizontal shaft 170 that will be described later. Has been established.

The left rear support frame 41 is interposed between the left drive shaft case 48 and the rear part of the left transport body 42. Similarly, the right rear support frame 41 is interposed between the right drive shaft case 48 and the rear portion of the right transport body 42. The left transport support frame 46 is interposed between the front portion of the left transport body 42 and the left front portion of the machine body frame 11 in an oblique manner. Similarly, the right transport support frame 46 is interposed between the front portion of the right transport body 42 and the right front portion of the machine body frame 11 in an oblique manner. Reference numeral 49 denotes a tension roller that elastically biases the transport belt forward path side portion 45a.

In the transport unit 21 configured as described above, the transport belt forward path side portions 45a and 45a of the pair of left and right transport bodies 42 and 42 sandwich the leaf portion Nb of the green onion N, and the green onion N is moved rearward and upward in the sandwiched state. Since it is conveyed, it cooperates with the digging conveyor 32 of the digging and raising part 20 that supports and conveys the rhizome part Na of the green onion N, and steadily conveys the green onion N in an upright posture. be able to.

As shown in FIGS. 9 to 11, the scraping unit 22 hangs a horizontal axis case 50 extending in the left-right direction on the body frame frame 11, and extends from the right side of the horizontal axis case 50 toward the front lower side. The chain case 51 is extended. A shaft case 52 projects from the front end (front end) of the chain case 51 toward the left side. A rotating body 54 is coaxially attached to the distal end portion of the rotating body support shaft 53 pivoted in the shaft case 52. The rotating body 54 is formed of a cylindrical peripheral wall 55 having an axis line in the left-right direction, and left and right end walls 56, 56 that close the left and right end faces of the peripheral wall 55. A distal end portion of the rotating body support shaft 53 is attached to the center of the left and right end walls 56 and 56 so as to penetrate therethrough. In other words, the rotating body 54 is arranged with its axis line oriented in a direction orthogonal to the transport direction of the transport unit 21, and is rotatable about the axis line via the rotating body support shaft 53.

On the outer peripheral surface of the peripheral wall 55 of the rotating body 54, a large number of scraping projecting pieces 57 are radially provided at intervals in the circumferential direction and the axial direction. Each projecting piece 57 has a change in the projecting height of each projecting piece 57 so that the tip part thereof is along the rhizome part Na. That is, in the first embodiment, the protruding piece unit is formed by protruding eight protruding pieces at the same interval in the circumferential direction of the outer peripheral surface of the peripheral wall 55. In the axial direction of the peripheral wall 55, five sets of the protruding piece units are formed at the same interval.

The protruding piece 57a protruding from the center of the outer peripheral surface of the rotating body 54 has a protruding width that is short. On the other hand, the protruding piece 57b protruding from the outer peripheral surface of the rotating body 54 has a protruding width longer than the protruding width of the protruding piece at the center. And the front-end | tip part of each protrusion piece 57a, 57b is set so that each may be located along the direct downward and side of rhizome part Na. In the first embodiment, the three sets at the center are short projection pieces 57a, and the two outside sets are long projection pieces 57b.

The rotating direction a of the rotating body 54 is such that the direction in which the protruding piece 57 collides with the earth lump D1 attached to the rhizome portion Na of the green onion and the conveying direction of the conveying unit 21 are the same direction. In the first embodiment, the rotational direction a of the rotating body 54 is set clockwise in the left side view, and the direction in which the projecting piece 57 collides with the soil mass D1 attached to the rhizome portion Na of the green onion, The rearward and upward conveying direction is the same direction. The rotational speed of the rotating body 54 is set to be higher than the transport speed of the transport unit 21. For example, the rotational speed (circumferential speed) of the rotating body 54 is set to 1 m / s, the transport speed (circumferential speed) of the transport unit 21 is set to 0.05 m / s, and the rotational speed (circumferential speed) of the rotary body 54 is set to the transport unit 21. It can be set to be 20 times the conveyance speed (circumferential speed).

In the scraping unit 22 configured in this way, most of the soil mass D1 adhering to the rhizome portion Na of the green onion N that the transport unit 21 and the digging conveyor 32 have transported in cooperation with each other is used as the peripheral wall of the rotating body 54. It can be scraped off by a large number of projecting pieces 57 projecting on the ground to form a mass D2. At this time, the rotating body 54 rotates below the rhizome part Na, so that a large number of projecting pieces 57 continuously collide (blow) the clot D1, and crush the clot D1 to crush the clot D2 and further the clot D3. Thus, the soil mass D3 attached to the rhizome Na and remaining can be reduced as much as possible.

Moreover, the projecting piece 57a projecting from the central portion of the outer peripheral surface of the rotating body 54 has a short projecting width, while the projecting piece 57b projecting from the outer portion of the outer peripheral surface of the rotating body 54 is The projecting width is longer than the projecting width of the projecting piece at the center so that the tip of each projecting piece 57a, 57b is located directly below the rhizome Na and along the left and right sides. Therefore, the lump D1 can be crushed firmly without interfering with the green onion N by the projecting pieces 57a and 57b. That is, the projecting piece 57a acts to scrape the lower part of the soil mass D1 attached below the rhizome portion Na, while the projecting piece 57b acts on the left and right sides of the soil mass D1 attached to the left and right sides of the rhizome portion Na. Scraping action on the part.

Here, in FIG. 10 or FIG. 11, the soil block D1 is a block-shaped soil block before the projecting piece 57 scrapes off, and the soil block D2 is a miniaturized soil block when the projecting piece 57 is scraping off. The soil mass D3 indicates the final small soil mass after the projecting piece 57 scrapes off. And the cooperation of the protrusion 57a which strikes and scrapes continuously against the lower part of the earth lump D1, and the protrusion 57b which hits and scrapes continuously against the left and right side parts of the earth lump D1. By the action, the soil mass is crushed continuously and steadily in the order of the soil mass D1 → the soil mass D2 → the soil mass D3.

The posture change / alignment unit 23 inherits the green onion N that is conveyed in a standing posture by the conveyance unit 21 at a position immediately after the conveyance unit 21 and tilts the inherited green onion N outward from the standing posture. In addition to changing the posture to the tilted posture and arranging the green onion N whose posture has been changed so as to be aligned along the transport direction, the green onion N is rearward and upwardly aligned while changing and aligning the posture (left rear in the first embodiment). It is transported toward the upper side.

That is, the posture change / alignment unit 23 is configured by arranging a pair of left and right transfer bodies 80, 80 extending in the front-rear direction so that the front end is lower than the rear height, and the rear end portion is directed outward on the left side. Yes. The transfer body 80 is formed by winding a transfer belt 83 around a drive pulley 81 and a driven pulley 82 that are spaced apart in the front-rear direction. The transfer belt forward path side portions 83a and 83a that are transferred from the start end portion (front end portion) to the end end portion (rear end portion) of both transfer bodies 80 and 80 facing left and right are in surface contact in a face-to-face state. The driving pulleys 81 and 81 are arranged such that their axes are directed in the vertical direction, while the driven pulleys 82 and 82 are arranged such that their axes are inclined in the inclination direction (for example, 45 °) of the left high, right, and low. The intermediate portions of the transfer belt forward path side portions 83a and 83a are brought into surface contact in a twisted manner.

The drive pulley 44 of the left transport body 42 and the drive pulley 81 of the left transfer body 80 are coaxially attached to the upper end portion and the middle portion of the left pulley drive shaft 85 arranged with the axis line directed in the vertical direction. . The drive pulley 44 of the right transport body 42 is linked to the upper end portion of the right pulley drive shaft 85 arranged with its axis line in the vertical direction via a chain transmission mechanism 86. The drive pulley 81 of the right transfer body 80 is attached to the middle part of the right pulley drive shaft 85.

Then, the posture change / alignment unit 23 that has inherited the green onion N from the terminal end of the transport unit 21 holds the green onion N in a state where the transfer belt forward path side portions 83a and 83a hold the leaf portion Nb of the green onion N. Alignment is performed while changing the posture from a standing posture to a leaning posture, and the left side is conveyed upward. Reference numeral 87 denotes a holding frame that holds the posture so that the leaf tip side of the green onion N transferred by the posture changing / aligning unit 23 does not hang down.

The posture changing / aligning unit 23 configured in this way can change the conveying posture of the green onion N from the standing posture to the leaning posture, so that the green onion N is collected sequentially and steadily in the collecting unit 25 described later.・ Can be stored.

A rectangular plate-shaped collecting unit 25 that collects green onions N is arranged at a lower rear position of the posture changing / aligning unit 23, and the green onions N whose posture has been changed / aligned by the posture changing / aligning unit 23 are collected by the collecting unit 25. To be collected. The front edge of the collecting unit 25 is arranged below the terminal end of the posture changing / aligning unit 23, and the green onions N conveyed by the posture changing / aligning unit 23 are dropped onto the collecting unit 25 and collected.・ It is designed to be stored.

That is, the collection unit 25 is attached to the body frame frame 11 via the collection unit support arm 90. The collection unit support arm 90 is formed of a vertically extending arm piece 91 whose axis is directed in the vertical direction, and a longitudinally extending arm piece 92 whose axis is directed in the longitudinal direction from the upper end of the vertically extending arm piece 91. A mounting frame 93 is provided on the front / rear extension arm piece 92 so as to project outward on the left side, and the lower surface of the collecting unit 25 is mounted on the mounting frame 93. A cylindrical support portion 98 having an axis line in the vertical direction is provided at the left rear end portion of the body frame 11. The collection unit support arm 90 has a vertically extending arm piece 91 inserted through a cylindrical support unit 98 from above and is attached to be rotatable about its axis.

As shown in FIG. 2, the collecting unit 25 can change the posture between the horizontal use posture F1 and the non-hanging posture F2 in the direction c around the horizontal axis of the front and rear extension arm piece 92 with the axis line in the front and rear direction. And a use position P1 disposed on one side of the machine body (on the left side in the first embodiment) in the direction d around the vertical axis of the vertically extending arm piece 91 with the axis line directed in the vertical direction, and immediately after the machine body The position can be changed between the storage position P2 and the storage position P2 arranged in the non-hanging posture F2.

Accordingly, the movable side step piece 95 of the boarding step part 24 is set to the non-use posture P4 in which the movable side step piece 95 is raised upward, and the collecting unit 25 is stored in the drooping non-use posture F2 immediately after the movable side step piece 95. By arranging at the position P2, the leek harvester A1 can be stored compactly. Further, on the right side opposite to the left side where the collecting unit 25 is disposed, there is an operation unit 14 for operating the working units of the traveling machine body 1 and the harvesting unit 2 with the boarding step unit 24 interposed therebetween. It is arranged.

In the collecting unit 25 configured as described above, the harvested green onion N is piled up in a lying posture on the collecting unit 25 on the left side of the worker Op who is standing on the boarding step unit 24 and steering and harvesting. Therefore, the collection performance of the green onion N and the steering / harvesting operation performance of the operator Op can be ensured satisfactorily.

In front of the digging portion 20, a pair of left and right crushed shoulder portions 60, 60, which are part of the harvesting portion 2, are disposed. The crushed shoulder portions 60, 60 break down both shoulder portions of the ridge U to reduce the entry resistance of the subsequent digging and raising portion 20, so that the digging work by the digging and raising portion 20 can be performed smoothly.

That is, the lower shoulder portions 60, 60 are attached to the left and right side portions of the horizontal shaft case 50 by attaching the base end portions (rear end portions) of the front extending shaft cases 61, 61 extending forward, respectively. Gear cases 62, 62 are attached to the front end portions (front end portions) of the cases 61, 61, and attachment discs 64, 64 are attached to the gear cases 62, 62 via disc support shafts 63, 63. Four crushing claws 65, 65 are provided at 64 at a predetermined interval in the circumferential direction. A front extending shaft 66 is pivoted in the front extending shaft case 61, and the disk support shaft 63 is linked to the front extending shaft 66 via gears 67 and 68 in the gear case 62.

The shoulder claw 65 protruding from the mounting disk 64 is rotated in the upper cut direction b so that the shoulder portion of the bag U can be broken by the claw shoulder claw 65. 69 is a scattering prevention cover, and 70 is a crushing bar. 71 is a gauge wheel that determines the height of the front end of the harvesting section 2 to ground, 72 is a gauge wheel support, and 73 is a gauge wheel support machine frame.

M shown in FIG. 12 is a power transmission mechanism of the leek harvester A1, and the power transmission mechanism M is formed of a traveling machine body transmission mechanism part Ma and a harvesting part transmission mechanism part Mb as shown in FIG. Yes.

That is, the traveling machine body transmission mechanism Ma is configured as follows. A first chain transmission mechanism 110 is interposed between the drive shaft 12 a of the engine 12 mounted on the machine body frame 11 and the input shaft 101 of the hydraulic pump 100. A second chain transmission mechanism 130 is interposed between the drive shaft 12 a of the engine 12 and the input shaft 121 of the speed change case 120 provided in the machine body frame 11. A first belt transmission mechanism 140 is interposed between the left end portion of the output shaft 122 of the transmission case 120 and the input shaft 13 a of the transmission case 13 provided at the lower part of the body frame 11. Drive wheels 10 a and 10 a of the traveling units 10 and 10 are attached to both ends of the output shaft 13 b of the mission case 13.

Moreover, the harvesting part transmission mechanism part Mb is configured as follows. A second belt transmission mechanism 160 is interposed between the right end portion of the output shaft 122 of the speed change case 120 and the right end portion of the harvesting portion transmission horizontal shaft 150 pivoted in the horizontal shaft case 50. . A worm gear case 151 is interlocked with the left side of the harvesting part transmission horizontal shaft 150. The worm gear case 151 is interlocked with a gear case 178 that is dug up via a transmission shaft 165 extending forward. The digging gear case 178 is linked to the left end portion of the drive shaft 34 that is horizontally mounted on the rear portion of the digging conveyor 32.

At the rear of the transmission shaft 165, the left end portion of the conveying portion transmission horizontal shaft 170 with the axis line directed in the left-right direction is interlocked and connected via input / output gears 171 and 172. Further, the lower end portion of the left pulley drive shaft 85 is interlocked and connected to the middle end portion of the conveying portion transmission horizontal shaft 170 via input / output gears 173 and 174. Further, the lower end portion of the right pulley drive shaft 85 is linked and connected to the right end portion of the conveying portion transmission horizontal shaft 170 via input / output gears 175 and 176.

The drive pulley 44 of the left conveyance body 42 and the drive pulley 81 of the left transfer body 80 are coaxially attached to the upper end portion and the middle portion of the left pulley drive shaft 85. The drive pulley 44 of the right transport body 42 is linked and connected to the upper end of the right pulley drive shaft 85 via a chain transmission mechanism 86. A drive pulley 81 of the right transfer body 80 is attached to the middle portion of the right pulley drive shaft 85. Reference numeral 177 denotes a conveyance unit transmission case.

The rear end of the chain case 51 extending in the front-rear direction is linked to the right side of the harvesting section transmission horizontal shaft 150. On the other hand, the right end portion of the rotating body support shaft 53 is interlocked and connected to the front end portion of the chain case 51. A scraping portion 22 is attached to the left end portion of the rotating body support shaft 53. The left and right sides of the harvesting portion transmission horizontal shaft 150 are connected to the rear end portions of the front extension shafts 66 and 66 that are pivoted in the front extension shaft cases 61 and 61, respectively. On the other hand, the base end portions (left end portions) of the disk support shafts 63 and 63 are interlockedly connected to the front end portions of the front extending shafts 66 and 66 through the gear cases 62 and 62. A disk support shaft 63 is linked to the forward extending shaft 66 through gears 67 and 68 in the gear case 62.

In the power transmission mechanism M configured as described above, power can be transmitted from the engine 12 to each working unit, and the green onion N can be harvested efficiently.

The leek harvester A1 according to the first embodiment is configured as described above, and the following effects are produced in the leek harvester A1.

(1) Since each working unit of the harvesting unit 2 and the boarding step unit 24 are arranged on a virtual collinear line L extending in the front-rear direction, at the standing position of the worker Op who boarded the boarding step unit 24 The working situation of each working unit, and further the harvesting situation of the green onion N can be easily visually recognized from immediately after. Therefore, even if there is a positional shift between the green onion N and the harvesting section 2, it can be dealt with promptly. For example, it is possible to quickly take measures such as adjusting the position of the traveling machine body 1 in which the dug-up portion 20 is made to enter the ridge U where the green onions N are cultivated. As a result, damage to the green onion N due to a positional shift between the green onion N and the harvesting unit 2 can be reduced.

(2) Since the scalloped green onion N is transported rearward and upward by the transport unit 21, the operator Op who has boarded the boarding step unit 24 immediately after that determines the transport status of the green onion N by the transport unit 21. It can be visually confirmed. For this reason, for example, it is possible to easily confirm the positional deviation in the left-right direction between the leek N and the digging portion 20, the deviation in the digging depth by the digging portion 20, and the like. Therefore, even if a positional shift occurs between the green onion N and the harvesting unit 2, it can be dealt with promptly. As a result, damage to the green onion N due to a positional shift between the green onion N and the harvesting unit 2 can be reduced.

(3) Since the posture change / alignment unit 23 aligns the green onions N while changing the posture from the standing posture to the tilted posture and transports the green onion toward the left rear upper side, the work boarded on the boarding step unit 24 The green onions N are aligned in a tilted posture and moved to the left of the standing position of the person Op. Therefore, the worker Op can easily confirm the whole green onion N (rhizome Na and leaf Nb). Further, since the green onions N are transported toward the left rear upper side, which is the direction approaching the worker Op, the workers Op can also touch the green onions N close to the operator. Therefore, the worker Op can easily perform adjustment work such as dropping the adhered soil mass D3 left on the green onion N while viewing the front. Therefore, it is possible to improve the harvesting work efficiency and reduce the fatigue of the worker Op.

(4) On the left side of the standing position of the worker Op boarding the boarding step unit 24, the green onion N whose posture has been changed by the posture changing / aligning unit 23 is automatically dropped onto the plate-like collecting unit 25. Since collection and further storage are performed, the collection operation does not hinder the operator Op performing various operations. At that time, since the green onions N are collected in an orderly manner on the collecting unit 25, the operator Op does not need to troubleshoot the collection posture of the collected green onions N. Therefore, also from this point, it is possible to improve the harvesting work efficiency and reduce the fatigue of the worker Op.

(5) Since the operation unit 14 is disposed on the side opposite to the side on which the collection unit 25 is disposed, the operation unit 14 does not block the forward view of the worker Op. Therefore, the harvesting work efficiency can be improved also from this point.

(6) Since the protrusions of the protrusions 57 are changed so that the tip ends of the protrusions 57 projecting on the outer peripheral surface of the rotating body 54 are along the rhizome Na, the protrusions 57 The crust D1 can be crushed by giving an impact to the clot D1 whose tip is attached to the rhizome Na of the green onion N. At this time, not only the adhered soil mass D1 located below the rhizome portion Na of the green onion N but also the adhered soil mass D1 located on the side of the rhizome portion Na of the green onion N can be crushed, and the adhered soil mass D1 is steadily scraped. Can be dropped. Therefore, it is possible to reduce the amount of unsoiled soil, and to reduce the work of adjusting the unsoiled soil (adjustment operation).

(7) The projecting piece 57a having a short projecting width located just below the rhizome Na gives an impact to the earth lump D1 attached to the lower end of the rhizome Na and crushes it, so that the rhizome Na The earth lump D1 adhering to the left and right side portions of the rhizome is separated into left and right sides, and protruding pieces 57b having a long protruding width located on the left and right sides of the rhizome portion Na are attached to the left and right side portions of the rhizome portion Na. In order to give an impact to the clot D1 that is being crushed and crush these, the adhering clot D1 of the rhizome Na is steadily scraped off.

(8) Since the projecting piece 57 collides with the earth lump D1 adhering to the rhizome portion Na of the green onion N and the conveying direction of the conveying unit 21 are the same direction, the projecting piece 57 collides with the green onion N. Even if it does, the impact to the leek N at that time can be made small. Therefore, damage to the green onion N can be reduced.

(9) Since the rotational speed of the rotating body 54 is set so as to be larger than the transport speed of the transport unit 21 (for example, 20 times), the litter N attached to the rhizome part Na of the green onion N On the other hand, a large number of projecting pieces 57 projecting from the rotating body 54 can be continuously collided to give a continuous impact to the attached soil mass D1. Therefore, the adhered soil mass D1 is crushed steadily, and the remaining soil can be greatly reduced.

II. Description of Second Embodiment A2 shown in FIGS. 13 to 18 is a leek harvester as a second embodiment. As shown in FIGS. 13 to 18, the green onion harvester A2 has the same basic structure as the green onion harvester A1 as the first embodiment. Therefore, in the following, description of the basic structure of the leek harvester A2 is omitted, and only a characteristic configuration of the harvesting unit 2 included in the leek harvester A2 will be described. The power transmission mechanism of the second embodiment is also the same as the power transmission mechanism of the first embodiment shown in FIG.

[Description of characteristic configuration in the harvesting section]
The harvesting unit 2 includes a pair of left and right shoulder crushing units 60, 60, a digging unit 20, a conveying unit 21, a scraping unit 22, and a posture changing / aligning unit 23 as each working unit. Yes. The pair of left and right heel shoulder breaking portions 60, 60 breaks both shoulder portions of the heel U to reduce the entry resistance of the digging portion 20 into the heel U. In this way, the green onion N is cultivated on the ridge U whose entry resistance is reduced, and this green onion N is dug up by the dug-up unit 20. The transport unit 21 sandwiches the midway part of the leaf part Nb digged up by the digging part 20 and transports the squeezed green onion N in the upright position toward the rear upper side. The scraping unit 22 scrapes off the soil mass adhering to the rhizome portion Na of the green onion N transported by the transport unit 21. The posture change / alignment unit 23 inherits the green onion N conveyed from the terminal end of the conveyance unit 21 in an upright posture, and sandwiches the intermediate part of the inherited green onion N so that the green onion N is moved outward from the standing posture. It is conveyed toward one side rear upper side (in this embodiment, left rear upper side) while changing and aligning the posture to the tilted posture tilted forward.

Further, as shown in FIG. 19, the shoulder crushing portions 60, 60, the digging-up portion 20, and the conveying portion 21 are pivotally supported by the base end portion (rear end portion) of the traveling machine body 1, and the distal end portion side is integrated. Can be moved up and down. Here, the crushed shoulder portions 60, 60 and the base end portion of the transport portion 21 are coaxial with the horizontal shaft case 50 that supports the harvesting portion transmission horizontal shaft 150 provided in the traveling machine body 1 with the axis line directed in the left-right direction. It is pivotally supported. The shoulder-shrinking portions 60, 60 and the conveyance portion 21 are configured such that the relative positions in the vertical direction of these tip side portions can be adjusted. Further, the digging part 20 and the transport part 21 can adjust the relative positions in the vertical direction of these tip side parts.

Specifically, as shown in FIG. 19, the digging portion 20 has a pivotal shaft in which the base end portion of the support frame 30 is directed to the pivot bearing body 26 provided in the body frame frame 11 and the axis is directed in the left-right direction. The front end portion can be lifted and lowered by a lifting cylinder 37 described later.

The transport unit 21 has a transport unit transmission case 177 connected to the base end thereof in a suspended state. A horizontal axis case 50, which will be described later, is continuously provided behind the conveyance unit transmission case 177. A horizontal shaft case 50 is pivotally supported on the horizontal shaft case support stay 58 provided on the machine body frame 11 so as to be rotatable about its axis. A starting end portion of the posture changing / aligning portion 23 is interlocked with the transport portion 21. The transport unit 21 and the posture change / alignment unit 23 are supported by the transport unit transmission case 177 via the transport support frame 46. That is, the transport unit 21 and the posture changing / aligning unit 23 are pivotally supported by the horizontal axis case support stay 58 via the horizontal axis case 50. Therefore, when the conveyance unit 21 moves up (down operation) around the horizontal axis case 50, the posture change / alignment unit 23 moves down (up operation).

Between the digging conveyor 32 described later provided in the front part of the digging part 20 and the continuous body 46a forming the front end part of the conveyance support frame 46 connected to the lower surface front end part of the conveyance part 21 in the vertical direction. A pair of left and right first vertical direction adjustment bodies 200, 200 that are adjustable in a stepwise manner are provided. And each 1st up-down direction space | interval adjustment body 200,200 can adjust the relative position of the up-down direction of the front-end part of the digging conveyor 32 and the front-end part of the conveyance part 21 by adjusting expansion-contraction to an up-down direction.

The first up-and-down interval adjusting body 200 opposes the first lower-side adjusting piece 210 erected upward from the digging conveyor 32 and the first upper-side adjusting piece 220 suspended from the connecting body 46a in the vertical direction. Are arranged. Upper and lower adjustment holes 230 and 240 are formed in the adjustment pieces 210 and 220 at intervals in the vertical direction. The adjusting pieces 210 and 220 are appropriately brought into surface contact with the inner and outer sides in a superposed state, and the adjusting holes 230 and 240 are aligned, and the connecting bolts 250 and 250 are inserted into the adjusted adjusting holes 230 and 240. Can be consolidated.

The pair of left and right shoulder crushing portions 60, 60 are coaxially attached to the horizontal shaft case 50 via forward extending shaft cases 61, 61 described later. The front end portion side of each heel- shoulder breaking portion 60, 60 is supported by the horizontal shaft case 50 so as to be swingable about its axis. Between the front part of each front extending shaft case 61, 61 and the front part of the connecting body 46a, a pair of left and right second vertical distance adjusting bodies 300, 300 that can be expanded and contracted in a stepless manner in the vertical direction. Is installed. Each of the second vertical distance adjusting bodies 300 and 300 can adjust the vertical relative position between the front end portions of the shoulder breaker portions 60 and 60 and the front end portion of the conveyance portion 21 by adjusting the expansion and contraction in the vertical direction. Yes.

The second vertical distance adjusting body 300 includes a second lower side adjusting piece 310 erected upward from the front extending shaft case 61 and a second upper side adjusting piece 320 vertically suspended from the connecting body 46a. It is arranged to face. The second lower adjustment piece 310 is formed with a pair of front and rear elongated holes 330, 330 extending in the vertical direction, while the second upper adjustment piece 320 is formed with a pair of front and rear adjustment holes 340, 340. Yes. Both adjustment pieces 310 and 320 are appropriately brought into surface contact with the inner and outer sides in a superposed state, and both holes 330 and 340 are aligned, and adjustment bolts 350 and 350 are inserted into the corresponding holes 330 and 340 and connected. It is possible. Then, the adjustment pieces 310 and 320 can be adjusted by sliding the second lower adjustment piece 310 in the vertical direction by loosening the tightening of the adjustment bolts 350 and 350, and then tightening the adjustment bolts 350 and 350. The interval can be adjusted easily.

A guide body 70 that guides the dead leaves of the green onion N protruding to the left and right sides is disposed on the inner side of the shoulder breaker 60. As shown in FIGS. 20 and 21, the guide body 70 extends in the front-rear direction from a position lower than the upper end position Ua of the straw U where the green onions N are cultivated to a position above the tip end of the transport unit 21. The guide body is formed to have a front / rear width L2 that is wider than the front / rear width L1 of the shoulder collapse portion 60.

Specifically, as shown in FIGS. 20 and 21, a scattering prevention cover 69 is attached to the peripheral wall of the gear case 62 described later. The anti-scattering cover 69 has a side covering cover piece 69a and an upper covering cover piece 69b. The side covering cover piece 69a covers the outer side of the attachment disc 64 interlocked with the gear case 62 and the heel shoulder claw 65 protruding from the attachment disc 64 in the radial direction. Further, the upper covering cover piece 69b covers the mounting disk 64 and the upper claw 65 directly above the claw 65.

The guide body 70 is attached to the upper covering cover piece 69b via the attachment body 74. The attachment body 74 is formed of a square plate-like attachment piece 74a and a hanging piece 74b that hangs downward from the inner edge of the attachment piece 74a. The mounting piece 74a is brought into surface contact with the upper surface of the upper covering cover piece 69b in a superposed state, and is moved in the left-right direction by sliding adjustment bolts 76, 76 through sliding adjustment long holes 75, 75 extending in the left-right direction. The position is adjustable. A midway portion of the guide body 70 extending in a straight bar shape in the front-rear direction is attached to the lower end edge of the hanging piece 74b. Between the front part of the guide body 70 and the upper part of the hanging piece 74b, a rod-shaped reinforcing piece 77 for reinforcing the front part of the guide body 70 is interposed.

This configuration produces the following operational effects.

(1) Since the relative position in the vertical direction of the tip side part of the heel shoulder breaker 60 and the transport unit 21 can be adjusted by the second vertical space adjustment body 300, the leeches U where the green onions N are cultivated Harvest of green onion N adapted to the shape and height of the can. That is, since both the shoulders of the heel U can be crushed to a required depth by the heel shoulder breaking portion 60, the entry resistance of the digging portion 20 to the heel U can be reduced steadily. Therefore, the harvesting operation can be performed with the traveling machine body 1 having the minimum load and traction force, and the weight of the traveling machine body 1 can be reduced. Moreover, since the conveyance part 21 can clamp the firm site | part of the leaf part Nb of green onion N at the lowest possible position which does not interfere with the ridge U, conveyance of the green onion N by the conveyance part 21 is stabilized. Thus, damage to the green onion N can be prevented.

(2) Since the relative position of the digging portion 20 and the front end side portion of the conveying portion 21 can be adjusted in the vertical direction by the first vertical distance adjusting body 200, the vertical relative position is set to the height of the ridge U. Can be adapted. As a result, the tip end side of the transport unit 21 can be set to the optimum clamping position of the green onion N, and the transportability of the green onion N can be ensured satisfactorily.

(3) The onion harvesting portion 60 and the proximal end portion of the conveying portion 21 are coaxially supported on the harvesting portion transmission horizontal shaft 150 provided in the traveling machine body 1 with the axis line directed in the left-right direction. The structure of the machine A2 can be simplified, downsized, and inexpensive.

(4) Withered leaves of green onions N projecting laterally by the guide body 70 can be guided from a position lower than the upper end position of the ridge U where the green onions N are cultivated to a position above the front end of the transport unit 21. For this reason, dead leaves or the like of the green onion N projecting to the left and right sides interfere with the heel-shoulder crushing portion 60 and get caught in the heel-shoulder claw 65 of the heel-shoulder crushing portion 60, for example, and the posture of the green onion N is disturbed. In addition, it is possible to prevent the leek N from being damaged. Therefore, the conveyance part 21 can clamp and convey the green onion N in the optimal position, and can ensure the conveyance property and commercial value of the green onion N well.

Next, the configuration of the posture change / alignment unit 23 will be described. That is, as shown in FIGS. 22 to 24, the posture change / alignment unit 23 gradually separates from the traveling machine body 1 on one side (left side in the second embodiment) of the traveling machine body 1 while changing and aligning the green onion N. It is designed to be transported toward the outside rear. On the leaf Nb side and the rhizome part Na side of the green onion N sandwiched between the posture change / alignment part 23, the leaf part side guide body 87 and the rhizome part side extending along the posture change / alignment part 23, respectively. A guide body 88 is provided and is slidably guided by the guide bodies 87 and 88 while supporting the leaf Nb side and the rhizome portion Na side of the green onion N from below.

The leaf portion side guide body 87 and the rhizome portion side guide body 88 are formed by extending from the start end portion to the end portion of the posture changing / alignment portion 23, respectively. The end portions of the guide bodies 87 and 88 are projecting end portions projecting rearward and downward. A collecting unit 25 is disposed below both projecting ends so that the green onions N conveyed by the posture changing / aligning unit 23 are dropped onto the collecting unit 25 and collected. The base end portion of the extended guide body 89 is attached to the protruding end portion of the leaf portion side guide body 87. The extension guide body 89 can be retracted and rotated upward about the base end.

The leaf portion side guide body 87 extends along the posture changing / aligning portion 23 and is opposed to the pair of front and rear guide pieces 87a and 87b which are opposed to each other at an interval in the front and rear direction, and the middle portions of both guide pieces 87a and 87b. And a connecting piece 87c for connecting the two. The end portions of the guide pieces 87a and 87b are protruding end portions 87d and 87e that protrude rearward and downward. On the other hand, the extending guide body 89 is formed in a U shape in a plan view. Both base end portions of the extended guide body 89 are attached to the pair of front and rear projecting end portions 87d and 87e. The extension guide body 89 can be retracted and rotated upward about both base ends.

More specifically, as shown in FIGS. 22 to 24, the pair of transfer bodies 80 and 80 constituting the posture changing / aligning unit 23 is arranged after the pair of left and right transport bodies 42 and 42 constituting the transport unit 21. At the position directly below the end, the base end portions (front end portions) are opposed to each other on the left and right, while at the left rear position of the rear end portions of the transport bodies 42, 42, the tip ends (rear end portions) are vertically Are arranged opposite to each other. The transfer body 80 having a lower end is provided with a transfer body frame 84 extending in the longitudinal direction, and a driven pulley 82 is attached to the end of the transfer body frame 84. An upper side stay 400 protrudes upward in the middle of the transfer body frame 84, and the leaf side guide body 87 is supported by the upper side stay 400. Further, a lower side base end stay 500 projects downward from the base end portion of the transfer body frame 84, and a lower side front end stay 510 extends downward from the front end portion of the transfer body frame 84. The rhizome side guide body 88 is supported horizontally on both the stays 500 and 510.

The upper stay 400 includes a stay main piece 410 projecting from the transfer body frame 84, a fixed plate piece 420 extending from the tip (upper end) of the stay main piece 410, and a movable projecting upward from the fixed plate piece 420. Pivot 430, movable plate 450 pivotally supported by movable pivot 430 via boss 440, and fixing / release pin 460 inserted into and removed from both plate pieces 420, 450 in a penetrating manner. A fixing / releasing body 470 for fixing / releasing the movable plate piece 450 to the piece 420 is provided. The fixing / releasing pin 460 is slid in the advancing direction by the urging force of the pressing spring 480 to fix the movable plate piece 450, that is, in a state in which it cannot rotate around the movable pivot 430. On the other hand, the movable plate piece 450 is slid in the backward direction against the urging force of the pressing spring 480, so that the movable plate piece 450 can be released from the fixed state, that is, can be rotated about the movable pivot 430.

The leaf side guide body 87 is a standing piece that is erected on the right edge of the upper surface of the movable plate piece 450 by fixing the inner end portion of the rear guide piece 87 b along the upper surface rear portion of the movable plate piece 450. The inner end portion of the front guide piece 87a is fixed along 490, and is extended downwardly from the middle portion toward the outer rear side so that the outer ends of both guide pieces 87a and 87b are connected to the collecting portion 25. It is arranged in a front and rear facing state at a position directly above. The leaf Nb side of the green onion N is changed in posture from a standing posture to a forward leaning posture and further to a recumbent posture while sliding on both guide pieces 87a and 87b from the inner side to the outer side.

Protruding end portions 87d and 87e formed at the end portions (outer end portions) of the guide pieces 87a and 87b are provided with both base end portions 89a and 89b of the extending guide body 89 via pivot pins 89c and 89d, respectively. It is pivotally connected. A tension spring 78 is interposed between the first spring coupling piece 87f suspended from the outer end of the rear guide piece 87b and the second spring coupling piece 89e suspended from the rear proximal end 89b. ing. Reference numeral 79 denotes a stopper pin that protrudes from the protruding end portion 87e. A base end portion 89b that is pivotally biased by the tension spring 78 is brought into contact with the stopper pin 79 from below, and the distal end portion of the extension guide body 89 The side is restricted from rotating beyond a predetermined posture inclined downward and outward.

And the leaf part Nb of the green onion N is made to slide down toward the collecting part 25 along the extended guide body 89. i is an axis of pivot pins 89c and 89d. The extension guide body 89 is rotatable about an axis i so as to be flipped up in the upward direction, which is the retraction direction f away from the collection unit 25. That is, when the distal end side of the extension guide body 89 is pressed from below, the extension guide body 89 is rotated upward about the axis i against the urging force of the tension spring 78. . Therefore, when the front end side of the transport unit 21 is raised and the rear end side and the posture change / alignment unit 23 are lowered, the extension guide body 89 extends when the front end side interferes with the collection unit 25. The guide body 89 is rotated upward and retracted. Therefore, neither the extension guide body 89 nor the collection unit 25 is damaged. Further, the extending guide body 89 rotated in the retracting direction f is restricted from retracting and rotating when the base end portion comes into contact with the stopper pin 79.

The leaf side guide body 87 is rotated in the front-rear rotation direction h about the axis g of the movable pivot 430, and is used along the posture changing / aligning portion 23 (sliding guide). Position) and a non-use position (storage position) arranged along the transport unit 21.

The rhizome portion side guide body 88 is formed in a straight bar shape, and is supported in a horizontal shape between a lower side base end stay 500 protruding from the transfer body frame 84 and a lower side front end stay 510. Yes. The outer end portion 88a of the rhizome portion side guide body 88 is arranged on the same plane as the extending guide body 89 in the downward inclination posture, and has a downward inclination shape. The rhizome portion side guide body 88 is slidably guided by the rhizome portion Na of the green onion N sandwiched between the pair of transfer belts 83 and 83 toward the outer rear side, and also on the outer end portion 88a. The rhizome part Na is slidably guided toward the collecting part 25. At this time, the outer end portion 88a is arranged in a downwardly inclined manner on the same plane as the extending guide body 89 that slides and guides the leaf portion Nb side of the green onion N, and thus cooperates with the extending guide body 89. The green onion N can be smoothly slid and transferred to the collecting unit 25 side without disturbing the posture of the green onion N. Therefore, the green onions N are collected in an orderly manner on the collecting unit 25, and the green onions N can be easily recovered.

As shown in FIGS. 22 and 23, a flat plate-shaped chain transmission case 600 containing a chain transmission mechanism 86 is disposed at the terminal portion of the right-side transport body. A transfer guide body 610 for transferring and guiding the midway portion of the green onion N from the transfer unit 21 to the posture change / alignment unit 23 is attached to the terminal end of the left transfer body 42.

That is, the inheritance guide body 610 is formed by curving a rod-like body, and a base end portion (front end portion) 630 is attached to the terminal end portion of the left transport body 42 via the mounting bracket 620. The intermediate portion 640 of the transfer guide body 610 is formed to be curved along the conveyance path of the green onion N that continues from the terminal end of the conveyance unit 21 to the start end of the posture change / alignment unit 23. The tip end portion 650 of the inheritance guide body 610 is arranged in a superposed state above the starting end portion of the leaf portion side guide body 87. The leaf Nb side of the green onion N inherited from the terminal end of the transport unit 21 to the start end of the posture changing / aligning unit 23 is tilted forward from the standing posture to the leaf side guide body 87 from the joint guide body 610. While being changed to the posture, it is inherited smoothly and steadily.

This configuration produces the following operational effects.

(1) The posture changing / aligning unit 23 conveys the green onion N toward the outer rear gradually separated from the traveling machine body 1 on one side (left side in the present embodiment) of the traveling machine body 1 while changing and aligning the posture. On the leaf Nb side and the rhizome Na side of the green onion N sandwiched between the posture changing / aligning portion, the leaf portion side guide body 87 and the rhizome portion extending along the posture changing / aligning portion 23, respectively. Since the guide body 88 is disposed and the leaf Nb side and the rhizome Na side of the green onion N are guided from below by the guide bodies 87 and 88, the leaf Nb side of the green onion N and the rhizome Na The side can be prevented from sagging. Then, the green onion N to be conveyed is conveyed toward the outer rear gradually separated from the traveling machine body 1 on one side (left side in the present embodiment) of the traveling machine body 1 while changing the posture from the standing posture to the inclined posture. Therefore, it does not interfere with other objects of the traveling machine body 1. In this manner, since the sag of the green onion N and interference with other objects can be avoided, the harvesting efficiency and the commercial value of the green onion N can be ensured favorably.

(2) The end portions of the leaf portion side guide body 87 and the rhizome portion side guide body 88 formed by extending from the start end portion to the end portion of the posture changing / alignment portion 23 are protruding end portions that protrude rearward and downward. 87d and 87e, and a collecting unit 25 is arranged below the projecting end portions 87d and 87e, and the green onions N conveyed by the posture changing / aligning unit 23 are dropped onto the collecting unit 25 and collected. Therefore, the harvested green onions N are collected by the collecting unit 25 steadily.

(3) While the posture change / alignment unit 23 is attached to the traveling machine body 1 so as to be capable of moving up and down, the collection unit 25 is fixed to the traveling machine body 1. The extension guide body 89 located behind the moving fulcrum may be lowered and collide with the collecting unit 25. However, the extension guide body 89 is retracted and rotated upward about its base end. Since the extension guide body 89 is retracted and rotated with respect to the collection unit 25, any damage or the like can be prevented.

(4) A pair of guide pieces 87a and 87b that the leaf side guide body 87 extends along the posture changing / aligning portion 23 and is opposed to each other with a space in the front-rear direction, and the middle of both guide pieces 87a and 87b Since the connection part 87c which connects parts is comprised, while being able to support the leaf part Nb side of the green onion N from the bottom widely widely, it can guide stably, the leaf part Nb side Can be prevented from sagging. The extension guide body 89 is formed in a U-shape, and both base end portions of the extension guide body 89 are attached to the pair of front and rear projecting end portions 87d and 87e. Since it is possible to retract and rotate upward with the end portion as the center, it is possible to prevent the extension guide body 89 from being damaged by being retracted and rotated with respect to the collection unit 25.

[More specific explanation of the structure of the harvesting section]
The digging part 20, the conveying part 21, and the scraping part 22, which are each working part, are arranged on a virtual collinear line L (see FIG. 15) extending in the front-rear direction in front of the traveling machine body 1. The boarding step unit 24 provided in the traveling machine body 1 is disposed behind the working unit and on the virtual collinear line L. That is, on the virtual collinear line L that is the left and right center line of the traveling machine body 1, the digging part 20, the transport part 21, the scraping part 22, and the boarding step part 24 are arranged in a line in the front-rear direction.

The transport unit 21 is disposed in parallel with and directly above the raising conveyor 32 via a first vertical distance adjusting body 200 as a pair of left and right front support frames, a rear support frame 41, and a transport support frame 46. is doing. And the conveyance part 21 has arrange | positioned and comprised the left-right paired conveyance bodies 42 and 42 extended | stretched in the front-back direction. The transport body 42 is formed by winding a transport belt 45 around a driven pulley 43 and a drive pulley 44 that are arranged at intervals in the front-rear direction (see FIG. 12). Conveying belt forward path side portions 45a, 45a that are transported from the start end portion (front end portion) to the end end portion (rear end portion) of both transport bodies 42, 42 facing left and right are in surface contact in a face-to-face state, The transport belt forward path side portions 45a and 45a sandwich the leaf portion Nb of the green onion N and transport the green onion N rearward and upward in the sandwiched state.

As shown in FIGS. 18 and 19, the first left and right first vertical interval adjusting body 200 is extended in the vertical direction and is interposed between the left side of the digging conveyor 32 and the front part of the left transport body 42. is doing. Similarly, the right first vertical direction interval adjusting body 200 extends in the vertical direction and is interposed between the right side portion of the digging conveyor 32 and the front portion of the right transport body 42. A pair of left and right drive shaft cases 48, 48 that support a pair of left and right pulley drive shafts 85, 85, which will be described later, stand on the left and right sides of a transmission horizontal shaft case 47 that supports a transfer unit transmission horizontal shaft 170 that will be described later. Has been established. The left rear support frame 41 is interposed between the left drive shaft case 48 and the rear portion of the left transport body 42. Similarly, the right rear support frame 41 is interposed between the right drive shaft case 48 and the rear portion of the right transport body 42. The left transport support frame 46 is interposed between the front portion of the left transport body 42 and the left front portion of the machine body frame 11 in an oblique manner. Similarly, the right transport support frame 46 is interposed between the front portion of the right transport body 42 and the right front portion of the machine body frame 11 in an oblique manner.

As shown in FIG. 17, the ground clearance of the boarding step unit 24, that is, the height from the lower surface where the traveling unit 10 is in contact with the ground to the lower surface of the boarding step unit 24 is equal to or higher than a certain height (in this embodiment, 200 mm or more). By doing so, even if the adhering soil of green onion N dropped by the digging part 20 and the scraping part 22 of the harvesting part 2 described later is deposited on the ridge U after the digging, the height of the sedimentary soil D is Since it is about 150 mm at the maximum, the traveling machine body 1 will not be disabled due to the height of the sediment D.

In the traveling machine body 1 configured as described above, the horizontal plate-shaped boarding step unit 24 on which the operator Op is boarding is located behind each work unit of the harvesting unit 2 described later and on the virtual collinear line L. Since the rearward end portion of the frame body 11 is projected in a rearward direction, the operator Op rides on the boarding step portion 24 as shown in FIG. It is possible to stand at a position immediately behind the digging portion 20 and the conveying portion 21 that are arranged in parallel in a slanted shape with front and rear and rear heights spaced apart in the vertical direction.

Therefore, the worker Op can obtain the harvested green onion N from the position immediately below the operator Op along the line of sight of the worker Op in the conveyance space between the digging unit 20 and the conveyance unit 21 and the conveyance space immediately above the conveyance unit 21. The conveyance in the direction approaching the worker Op can be steadily seen in the field of view of the worker Op viewing the front.

The characteristic configuration of the leek harvester A2 as the second embodiment is as follows.
(1) A green onion harvester equipped with a harvesting unit that digs and harvests green onions from the straw that cultivates green onions on a self-propelled traveling machine body,
The harvesting unit, as each working unit, sandwiches the digging up part that digs up the green onion, the intermediate part of the green onion digging up by the digging up part, and the conveyance part that conveys the squeezed green onion to the rear upper side in the standing posture, Attach the green onion transported in the standing posture from the terminal end of the head part, hold the middle part of the inherited green onion, change the posture and align it to the tilted posture tilted outward from the standing posture An alignment section;
The posture change / alignment unit conveys the onions toward the outer rear gradually separated from the traveling machine body on one side of the traveling machine body while changing the posture / alignment.
A leaf side guide body and a rhizome side guide body extending along the posture change / alignment part are arranged on the leaf part side and the rhizome part side of the green onion in which the midway part is sandwiched by the posture change / alignment part, respectively. A leek harvesting machine characterized in that the leaf side and rhizome side of the leek are guided from below by each guide body.
(2) The leaf portion side guide body and the rhizome portion side guide body are formed by extending from the start end portion to the end portion of the posture change / alignment portion, respectively.
The end part of each guide body is a projecting end part projecting rearward and downward, a collecting part is arranged below both projecting end parts, and the green onions conveyed by the attitude changing / aligning part are collected part The onion harvester according to (1) above, wherein the onion harvester is dropped and collected.
(3) At the projecting end portion of the leaf side guide body, a base end portion of an extension guide body that guides the green onion onto the collecting portion is attached, and the extension guide body is directed upward about the base end portion. The leek harvesting machine according to the above (2), characterized in that it can be retractably rotated.
(4) The leaf portion side guide body extends along the posture changing / aligning portion, and is opposed to the pair of guide pieces facing each other at an interval in the front-rear direction, and a connecting piece for connecting the middle portions of the two guide pieces. , And
The end portion of each guide piece forms a protruding end portion that protrudes rearward and downward,
The extension guide body is formed in a U shape, and both base end portions of the extension guide body are attached to a pair of front and rear projecting end portions, and the extension guide body is upwardly centered on both base end portions. The leek harvesting machine according to the above (2), characterized in that it can be retractably rotated.

According to the onion harvesting machine A2 configured as described above, when changing the posture of the leek that has been dug up, it is possible to avoid sagging of the onion and interference with other objects, so the harvesting efficiency and product value of the onion Can be secured satisfactorily.

A1, A2 Green onion harvesting machine N Green onion Na Rhizome part Nb Leaf part Op Worker 1 Traveling machine body 2 Harvesting part 20 Digging part 21 Transport part 22 Scraping part 23 Posture changing / aligning part 24 Boarding step part 54 Rotating body 57 Projection piece 70 Guide body 87 Leaf part side guide body 88 Rhizome side guide body 200 First vertical direction interval adjuster 300 Second vertical direction adjuster

Claims (5)

1. It is a leek harvesting machine equipped with a harvesting part that digs up and harvests green onions from the straw that cultivates green onions on a self-propelled traveling machine body,
   The harvesting section, as each working section, scrapes off the lump that digs up the leek, the conveyance section that conveys the leek that has been dug up by the digging up section, and the lump that adheres to the rhizome of the leek while being conveyed by the conveyance section A scraping section, and
   Each working unit is arranged on a virtual collinear line extending in the front-rear direction in front of the traveling aircraft,
   A leek harvesting machine characterized in that a traveling step body is provided with a boarding step section on which an operator boardes on the rear side of each working section and on a virtual collinear line.
2. The conveying part is arranged in a slanted shape with a front, a rear, and a height so as to convey the green onion rearward and upward in a state where the middle part of the green onion that has been dug up is sandwiched. Item 1. A leek harvester according to item 1.
3. At the position immediately after the transport unit, the green onion that is transported in the rearward and upward direction by the transport unit is inherited, the posture of the inherited green onion is changed from the standing posture to the tilted posture inclined outward, and aligned. Arrange posture change / alignment section,
   The onion harvesting machine according to claim 1 or 2, wherein the posture changing / aligning unit conveys the green onion toward the rear and upper side while changing the posture.
4. A plate-shaped collecting unit that collects green onions is arranged at the lower rear position of the posture changing / aligning unit so that the green onions that have been posture changed / aligned by the posture changing / aligning unit are collected by the collecting unit. The onion harvester according to claim 3.
5. 5. An onion according to claim 4, wherein an operation part for operating the traveling machine body and each working part is arranged on the side opposite to the side on which the collecting part is arranged, with the boarding step part interposed therebetween. Harvester.

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