JP6545594B2 - Root vegetables harvester - Google Patents

Description

  The present invention relates to a root vegetable harvester for harvesting root vegetables in which some or most of crops to be harvested such as potato, carrot, radish, and onion are embedded in the soil. .

As a root vegetable harvester of this type, a root vegetable harvester equipped with a sampling transport device for pulling back and transporting backwards in the field, as well as cutting leaf and root portions of crops that are pulled and transported, has been known from the past. It is done.
In this conventional root vegetable harvester, a root cutter having a structure using a pair of left and right disk-like blade bodies for root cutting and a guide for guiding and feeding the root of the crop to the disk-like blade body It is known (refer patent document 1).

JP 2007-330176 A (paragraphs "0036", "0045", see FIGS. 5 to 7)

In the structure shown in Patent Document 1, a guide member whose width becomes narrower toward the lower side in the crop conveyance direction and a root cutting device provided with a blade for cutting the root are used. The members and the blade are configured to cut the root of the crop in a fixed position.
Therefore, when the size of the crop is different, the inclination of the crop with respect to the blade changes variously, and there is a problem that the cutting state is difficult to be stably performed well.

  An object of the present invention is to provide a root crop harvester having a root cutter that easily cuts roots of crops having different sizes.

A feature of the root crop harvester according to the present invention is that it comprises a sampling and conveying device which is disposed on one side of the traveling vehicle in the left and right direction and extracts the crop of the field and conveys it backward. During conveyance at a position on the upper side in the conveyance direction with respect to the holding / conveying device for gripping and extracting the leaves and conveying backward, the leaf cutting device for cutting the leaves of the crop during conveyance, and the leaf cutting device A root cutting device for cutting the root portion of the crop, the root cutting device comprising: a blade attachment member equipped with a cutting blade; and a parallel link mechanism supporting the blade attachment member so as to be changeable in the vertical direction. provided with a, is repositionable configured cutting position relative to the crop being conveyed move up and down, the parallel link mechanism is arranged on the body inwardly of the vehicle body than the conveyance path of the withdrawal conveyor device The blade attachment member is connected to a support arm extended from the parallel link mechanism to the outer side of the machine, and the blade attachment member is disposed in a state where the cutting blade is positioned below the transport path. It is in the point being done.

According to the present invention, the cutting position relative to the root of the crop by the root cutting device can be changed vertically by the parallel link mechanism that supports the blade attachment member in the vertical direction so that the position can be changed. However, there is an advantage that it is easy to cut the root properly. Further, according to the present invention, the blade attachment member is connected to the support arm extended outward from the parallel link mechanism to the outer side of the machine, and the cantilever is in the cantilever state so that the cutting blade is located below the transport path. Support. Therefore, the parallel link mechanism can be positioned on the inboard side of the traveling vehicle as much as possible, and the root cutting device can be installed in a state in which contact with other objects such as untreated crops is easily avoided.

In the present invention, the root cutting device, prior to KIHA body mounting member provided with a guide member having a introduction path along the transport path of the extraction transport device, those crops main portion being conveyed to the guide member It is preferable that a biasing member be provided to bias the contact side.

According to the present invention is provided with the urging member for urging the guide member for introducing guiding the crop to the side abutting the crops main portion being conveyed, even when the size of the crop is significantly different, automatic It is possible to set the cutting position in the proper place of the crop and to adjust the cutting position of the root well.

  In the present invention, when the parallel link mechanism is attached to a support frame for mounting the extracting and conveying apparatus on a traveling machine body, the parallel link mechanism is suspended from the support frame via a mounting support rod arranged downward. It is suitable.

  According to the present invention, the support frame for mounting the extracting and conveying device on the traveling machine body is effectively used to maintain the position of the root cutting device in an appropriate position relative to the extracting and conveying path of the extracting and conveying device. It is easy to put in place.

  In the present invention, it is preferable that the guide member is formed with a guide surface which contacts the lower part of the crop moving along the transport path to guide the cutting blade to the proper cutting height position for the crop. .

  According to the present invention, the guide member for guiding the crop moving along the transport path can also be used as the height adjustment means of the cutting blade to simplify the structure for cutting position adjustment.

  In the present invention, preferably, the cutting blade of the root cutting device is constituted by a fixed blade having a blade edge in a direction transverse to the transport path of the extraction and transport device.

  According to the present invention, by forming the cutting blade with a fixed blade, it is possible to reduce the deterioration of the blade portion for cutting the root portion, which often has mud, and to improve the durability.

It is a left view which shows a root vegetable harvester. It is a top view which shows a root vegetable harvester. It is a rear elevation showing a root vegetable harvester. It is a side view which shows a storage apparatus. It is a side view showing a leaf section cutting device and a root cutting device. It is a side view showing a root cutting device. It is a top view showing a root cutting device. It is a side view showing a mud removing device.

Hereinafter, an example of an embodiment of the present invention will be described based on the description of the drawings.
In the description of the present embodiment, the front-rear direction and the left-right direction are described as follows, unless otherwise specified. That is, the traveling direction (refer to arrow F in FIG. 2) on the forward side during working traveling of the traveling vegetable 1 of the root vegetable harvester to which the present invention is applied is “forward” and the traveling direction to the reverse (refer to arrow B in FIG. 2), the direction corresponding to the right side with reference to the forward posture in the front-back direction (see arrow R in FIG. 2) is the right direction, similarly the direction corresponding to the left (see arrow L in FIG. 2) Is the "left".

〔overall structure〕
FIGS. 1 to 3 illustrate a kabra harvester as an example of a root crop harvester for harvesting root crops.
This turnip harvester comprises a pair of left and right crawler type traveling devices 11 below the machine body frame 10, and a steering unit 12 at the front of the right side of the machine to configure the traveling machine body 1.
In the traveling body 1, a harvesting section 1A for harvesting the crop main section k1 with the crop in the field removed and the root and leaves removed, and a sorting section 1B for sorting the harvested crop main section k1 And an accommodating portion 1C for accommodating the selected crop main portion k1 on the machine body. That is, the turnip harvester pulls up the straw as a crop from the field as the machine travels, and accommodates the crop main portion k1 on the traveling body 1. The crop main part k1 referred to in this embodiment is a part other than the leaf and root parts of the persimmon, and the non-crop main part k2 indicates other than the crop main part k1 such as the leaf part and the root part.

The harvesting section 1A is provided with a long pick-out and conveying apparatus 2 for extracting and transporting backward a crop on a field, which is disposed on the left side of the traveling machine 1 on the airframe side.
The storage unit 1C is provided with a storage device 6 for storing the crop harvested by the removal and transfer device 2. The storage device 6 is disposed at the rear right side of the machine opposite to the side where the removal and transfer device 2 is positioned in the left-right direction.
In the sorting section 1B, the relay transport device 5 for transferring the crop from the transport end position in the removal transport device 2 on the left side of the machine toward the storage device 6 on the right side of the machine, and the sort for crop on the relay transport device 5 An auxiliary boarding unit 13 on which an auxiliary worker boardes is provided.

A motive power unit provided with an engine 14 is provided at a right front portion of the vehicle body frame 10 of the traveling airframe 1, and a driver seat 12a of the steering unit 12 is installed in a state of covering the upper side of the motive power unit. A control unit step 12b is provided below and in front of the driver's seat 12a, and a control tower 12c provided with an operating tool or the like for steering operation is provided in the front position of the control unit step 12b.
As shown in FIG. 2 and FIG. 3, an auxiliary step 77 capable of rocking and rocking around an axial center in the front-rear direction is provided on the right lateral side of the storage device 6. This auxiliary step 77 is a storage in which the step surface 77a for footrest is folded in the use posture along the horizontal direction (see FIG. 2) and the step surface 77a is erected so that the auxiliary worker can stand and get on. The posture can be switched to the posture (see FIG. 3).

Further, as shown in FIG. 1, the airframe 10 of the traveling airframe 1 is also equipped with a soiling device 8. This soil placement device 8 is for supplying the soil of the collapsed straw to the ditch portion between the ridges by breaking up the straw after the crop has been pulled out along with the forward traveling of the traveling airframe 1, and 80, and a lifting cylinder 81 for lifting and lowering the earthing blade 80.
In other words, it is possible to switch between the posture of the blade for earthing 80 to the working posture in which the lower edge of the blade for earthing 80 has plunged into the ground and the operation release posture in which the lower edge of the blade for earthing 80 is pulled up from the soil It is configured to break up the weirs in the working posture and supply soil to the interstices of the weirs.

[Harvest department]
The harvesting unit 1A will be described.
As shown in FIGS. 1 to 3, the picking and transporting apparatus 2 is disposed in the harvesting section 1A. The take-out and transfer device 2 has a pair of endless turning belts 20a and 20a in an upward inclined posture and a endless turn thereof with a transfer start end positioned near the ground and at a high level on the rear side of the machine toward the transfer end side. It has a pinching and conveying device 20 constituted by a drive pulley 20b and a driven pulley 20c around which the moving belts 20a and 20a are wound. The nipping and conveying device 20 is disposed along the left end portion of the traveling machine body 1, and a pulling-up and conveying path along the longitudinal direction of the traveling body 1 between the left and right endless rotation belts 20a and 20a. r1 is configured.
By picking up the leaves of the crop to be harvested with a pair of endless rotating belts 20a, 20a and conveying them upward in the backward direction of the machine body, harvesting is performed by the lifting action in the sandwiched state by a pair of endless rotating belts 20a, 20a. The target crop is removed from the field. Then, the crop pulled out from the field is subjected to predetermined processing while being lifted and conveyed in the hanging posture in which the leaf portion is held as it is, and then dropped and discharged from the conveyance end portion.

The extracting and conveying device 2 includes, on the front side of the front end of the pinching and conveying device 20, a pair of well-known vertical turning type wefting devices 21 for dividing the crop leaves and a known horizontal It has a swivel-type raising device 22. The branching device 21 and the raising device 22 function to cause the leaves of the crop while branching. A subsequent pinching and conveying device 20 sandwiches and transports the leaves of the crop erected by the branching device 21 and the raising device 22 backward. At this time, since the leaves of the crop are raised in advance by the weeding device 21 and the raising device 22, it is easy to hold the leaves of the crop by the following holding and conveying device 20, so that the passing of the crop is good. It is easy to be done.
In addition to this, the removal and transfer device 2 includes a leaf portion cutting device 24 for cutting a leaf portion (corresponding to a non-crop main portion) as a device for performing predetermined treatment on a crop during transfer, and a root portion of a crop A root cutting device 4 for cutting (corresponding to a non-crop main part), and a mud removing device 3 for scraping off mud adhering to the lower part of the crop before the root cutting by the root cutting device 4 is performed Is equipped.

A pair of endless rotating belts 20a and 20a of the weighing device 21 and the raising device 22 and the holding and conveying device 20 correspond to a main support frame 23 (back and forth direction) for supporting the entire extracting and conveying device 2 Supported by The main support frame 23 is pivotally connected at its rear end side to the upper end portion of the column member 16 erected from the body frame 10 so as to be vertically pivotable around a pivot point x1 along the horizontal direction. There is. The front portion of the main support frame 23 is supported by a lift cylinder 15 provided between the main support frame 23 and the machine body frame 10, and the entire main support frame 23 swings up and down around the swinging fulcrum x1 by the extension operation of the lift cylinder 15. It is configured to be movable.
Further, the leaf cutting device 24, the root cutting device 4 and the mud removing device 3 are supported by the main support frame 23 in a suspended state. Therefore, as the main support frame 23 swings up and down, the upper and lower positions of the leaf cutting device 24, the mud removing device 3, and the root cutting device 4 also change.

The endless rotating belts 20a wound around a drive pulley 20b provided on the rear end side and a driven pulley 20c provided on the front end side are drive pulleys 20b to which the power of the engine 14 is transmitted via a transmission system (not shown). It is rotationally driven along with the rotation of.
At this time, the left and right endless rotation belts 20a and 20a rotate in opposite directions with the outer circumferential surfaces of the belts facing each other in the same plane. That is, as shown in FIG. 2, the endless rotating belt 20a positioned at the outermost side in the left-right direction rotates clockwise in plan view, and the endless rotating belt 20a positioned on the inboard side of the machine rotates counterclockwise. Between the opposing surfaces of the endless rotating belts 20a and 20a, a pulling-up conveying path r1 is formed which sandwiches the leaf portion of the crop and conveys it backward.
The drive pulley 20b and the driven pulley 20c described above are both supported by the main support frame 23, and the left and right endless rotation belts 20a and 20a are disposed along the lower sides of the left and right main support frames 23. ing.

Leaf cutting device 24 provided for cutting the leaves in the middle of conveyance by punching raised conveyance path r1 is configured as shown in FIG.
That is, in the leaf cutting device 24, a pair of left and right shoulder aligned conveyances gripping the leaves of the crop being conveyed by the endless rotation belts 20a, 20a on the lower side of the endless rotation belts 20a, 20a and simultaneously conveying them backwards The belts 24a, 24a are provided.
The shoulder-aligning transport belts 24a, 24a rotate in a plane inclined by a predetermined angle θ1 so that the lower side in the crop transport direction is apart from the plane on which the endless rotating belts 20a, 20a rotate. A pair of left and right disk-like cutting blades 24b, 24b for cutting are provided near the conveyance end of the shoulder-aligned conveyance belts 24a, 24a (near the rear end).
Therefore, the endless rotating belts 20a and 20a and the shoulder aligning and conveying belts 24a and 24a are used, in which the vertical intervals between the gripping positions of the crop leaves gradually expand toward the lower side in the transport direction. During simultaneous conveyance by the belts 20a and 24a, cutting of the leaf by the cutting blades 24b and 24b is facilitated with the leaf of the crop being stretched with little slack. The cutting blades 24b and 24b are upper portions of the crop main portion k1 below the shoulder-aligned conveying belts 24a and 24a of the crop main portion k1 in a state where the upper shoulders are in contact with the lower portions of the shoulder-aligned transport belts 24a Cut.

The mud removing device 3 for removing the mud adhering to the lower part of the crop transported by the pull-up transport route r1 is provided on the upper side in the crop transport direction than the root cutting device 4 as shown in FIG. ing.
As shown in FIG. 8, the mud removing device 3 is a contact rotating body 31 for scraping off the adhering mud by coming into contact with the root of the crop being transported, and an electric motor (FIG. Not shown). The contact rotary body 31 is composed of a plurality of flexible plate members 31a such as rubber plate members that rotate around a horizontal axis x2 in the left-right direction across the pull-up conveyance path r1. The rotating direction of the contact rotating body 31 is configured to rotate clockwise in the side view in FIGS. 1 and 8 so that the upper half side is the same direction as the moving direction of the crop, and is faster than the moving speed of the crop It is attached so as to scrape off the mud at the bottom of the crop by rotating at a fast circumferential speed.
The mud removing device 3 is supported by the left and right main support frames 23, 23 via mounting stays 30 provided on the left and right ends of the contact rotating body 31.
The root cutting device 4 will be described later.

  Reference numeral 25 in FIG. 1 and FIG. 2 is a grounding ring provided at the tip of the main support frame 23 on the right side, and the posture of the branching device 21, the raising device 22 and the holding and conveying device 20 is predetermined ground height. To maintain the

As shown in FIG. 1 to FIG. 3, in the rear part of the transport end of the removal and transport device 2, a hook-like discharge is made to slip so as to catch the leaf falling off from the transport end and discharge it to the rear side of the machine. A guide 26A is provided. A scattering prevention sink board for suppressing scattering of leaves falling from the discharge guide 26A to an untreated ground laterally outward of the passage mark of the traveling body 1 at a lower position on the rear side of the discharge guide 26A 26B is provided.
As shown in FIG. 2 and FIG. 3, the scattering prevention sink plate 26B is a leaf that drops a plate member having a substantially L-shaped cross-sectional shape in the horizontal direction from the discharge guide 26A toward the lower rear. It arrange | positions in the location corresponded to a fall path | route, and it is comprised so that it can suppress that the leaf part which falls falls on the left side of the traveling body 1 is scattered.
Further, in the auxiliary boarding portion 13 on the traveling machine body 1 at a position opposite to the scattering prevention flow board 26B in the left-right direction, the leaf portion falling from the lower end of the scattering prevention flow board 26B A shielding plate 17 is provided upright to avoid getting on the floor.
The combination of the discharge guide 26A and the scattering prevention sink plate 26B constitutes a discharge chute 26 for sliding the leaf portion toward the inside of the machine in the left-right direction with respect to the transport end position of the removal and transport device 2 There is.

[Sorting unit]
The sorting unit 1B will be described.
As shown in FIGS. 2 and 3, in the sorting section 1B for sorting the crop main part k1 harvested, the crop main part in the extracting and conveying device 2 disposed along the front-rear direction at the left end of the traveling airframe 1 The relay transport device 5 is provided to transport crops in the left-right direction from the transport end position of k1 toward the storage device 6 disposed on the right side of the machine opposite to the side where the removal transport device 2 is disposed. ing. Further, on the rear side of the relay conveyance device 5, an auxiliary boarding unit 13 on which an auxiliary worker boardes is provided. The auxiliary boarding unit 13 is disposed so as to be located between the location where the extracting and conveying apparatus 2 exists in the left-right direction and the location where the storage device 6 exists.

The relay conveyance device 5 has a conveyance surface for placing and conveying the crop on the upper surface side, and is configured to be able to convey the crop in the left-right direction from the side where the removal conveyance device 2 exists to the side where the storage device 6 exists. The lateral conveyor 50 is provided with a guide roller 51 which acts so as to bring the crop to the rear side of the machine where the storage device 6 exists, at the transport end side of the lateral conveyor 50.
That is, the relay conveyance device 5 guides the sideward conveyance route r2 from the side where the removal conveyance device 2 exists to the side where the storage device 6 exists and the guide roller 51 in the left-right direction which is the conveyance direction of the sideward conveyor 50. And a rear feed transport path r3 toward the rear side of the machine where the storage device 6 is present.
The removal and transfer device 2 includes the removal and transfer route r1 along the longitudinal direction of the traveling machine body 1, and the relay transfer device 5 following this includes the cross feed transfer route r2 and the back transfer transfer route r3. The kabra harvester is configured to feed the crop into the storage device 6 via the transport paths r1, r2, r3 that bend in a crank shape.

The sideward conveyor 50 is a belt conveyor provided with a rubber conveyor belt. When the crop in a state in which the leaf portion is supported by the pinching and conveying device 20 in the extracting and conveying device 2 and the shoulder-alignment conveying belt 24a in the start-up side of the sideways conveyor 50 is cut off by the cutting blade 24b and dropped In the vicinity of the drop point, it is disposed at a position where it can receive the crop main part k1. The transport end of the sideward conveyor 50 is disposed to reach the right end of the traveling body 1.
Further, the height position of the transport surface of the sideways conveyor 50 is compared with the vertical drop from the transport end portion of the removal and transport device 2 to such an extent that the crop main portion k1 which is cut off and dropped leaves are not damaged too much The height is set to a very low level.

As shown in FIG. 2, the guide roller 51 is disposed in an inclined posture so as to be positioned on the upper side of the conveyance of the horizontal conveyor 50 toward the front of the machine in plan view. That is, although the guide roller 51 is on the side closer to the transport end of the sideways conveyor 50, the guide roller 51 is positioned on the upper side in the transport direction than the transport end, and as described above It is arranged in the inclined posture located at.
Therefore, when the crop conveyed on the conveyance surface of the sideways conveyor 50 comes in contact with the guide roller 51, the component force in the conveyance direction by the sideways conveyor 50 at the angle formed by the contact surface is directed to the rear side of the traveling airframe 1 As a result, the crop main part k1 is subjected to the transport action to the rear side of the airframe.
Note that the guide roller 51 is installed on the conveyance surface of the sideways conveyor 50 with a predetermined gap (not shown), so a relatively small non-crop main part k2 that can pass through this gap The transfer action to turn to the rear side of the machine does not work on the cut end of the root portion or a part of the leaf portion corresponding to Ru.
The guide roller 51 is constituted by a round pipe made of synthetic resin, and is disposed so as to freely rotate around the horizontal axis p1 shown in FIG.

The auxiliary boarding portion 13 provided on the rear side of the sideward conveyor 50 has the storage device 6 on the right side of the auxiliary boarding portion 13, so the side closer to the center of the body in the left-right direction than the transport end portion of the sideward conveyor 50 Will be present. However, since the conveyance surface of the sideways conveyor 50 is sufficiently lower than the line of sight of the auxiliary worker standing at the auxiliary boarding unit 13 and is the height of the average adult male waist standing at the auxiliary boarding unit 13, the storage device It is possible to perform the sorting operation while visually observing the range of the majority of the transport surface of the sideways conveyor 50, including the portion corresponding to the front side of 6.
The auxiliary boarding unit 13 is a space with an upper side opened between the left side extraction and transfer apparatus 2 and the right side storage apparatus 6 so that the sorting operation and the like can be easily performed in a state where the auxiliary worker stands up. And not only in this range, the height on the upper side is limited by the end of the removal and transfer device 2, but auxiliary work is also performed on the rear side of the sideward conveyor 50 located below the end of the removal and transfer device 2. There is a floor where people can move.

At the boundary between the sideways conveyor 50 and the auxiliary mounting portion 13, as shown in FIGS. 3 and 6, there is a partition wall 52 that protrudes slightly above the transport surface of the sideways conveyor 50.
Of the partition wall 52, the right half side close to the storage device 6 is formed into a plate wall shape using the non-perforated plate member 53, and the left half side portion close to the extracting and conveying device 2 is a bar-shaped standing piece 54 It is formed in the shape of a fence lined in small intervals.
Therefore, even if the crop main portion k1 falling from the transport end of the removal and transport device 2 rolls on the transport surface, it is reliably prevented from coming off from the transport surface of the sideward conveyor 50 by contact with the bar-like rising pieces 54. Easy to do. The partition wall 52 is formed like a fence near the transport end of the removal and transport device 2, which is advantageous in that it is likely to fall naturally without depositing mud or the like on the sideward conveyor 50.
In addition, the part of the plate member 53 in the partition wall 52, the auxiliary worker puts one hand or deposits the body, and while the posture is stabilized, the crop main portion k1 near the guide roller 51 at the transport end. It can be conveniently used, for example, when working on stagnant conditions.

An operation switch for operating the elevating cylinder 72 and the dump cylinder 73 in the storage device 6, which will be described later, on the rear surface side of the control unit 12, which corresponds to the front side of the auxiliary loading unit 13 with the sideward conveyor 50 interposed therebetween. The operation panel 55 provided with the operation tool such as is disposed.
Therefore, the auxiliary worker can operate the elevating cylinder 72 and the dump cylinder 73 in the storage device 6 while staying in the auxiliary boarding unit 13. Further, by providing operation panel 55 at this position, the driver mounted on driver's seat 12 a as well as the auxiliary worker twists his body to the rear side to operate the operation tool of operation panel 55 It is also possible.

[Accommodating section]
The accommodation unit 1C will be described.
The housing portion 1C is constituted by a storage device 6 disposed at the rear right side of the airframe on the opposite side to the side where the removal and transfer device 2 is positioned in the left-right direction.
The storage device 6 raises and lowers and dumps the storage case 6A including the storage space s1 for storing the crop, and the storage case 6A, and directs the stored crop to the cargo bed of the transport car outside the machine, etc. And a driving device 6B for discharging.
As shown in FIGS. 2 to 4, the storage case 6A is formed in a rectangular box shape whose upper side is opened at the time of storing the crop, and a storage space s1 capable of storing the crop is formed in the inside thereof.

The housing case 6A includes a base case body 60 supported by the body frame 10 via the drive device 6B, and an extension case body 63 attached to the base case body 60.
The extension case body 63 is connected to the base case body 60 so as to be changeable in posture around the swing axis x3 along the left-right direction.
The accommodation space s1 in the accommodation case 6A is configured to appear in a combined state of the base case body 60 and the extension case body 63.
That is, when the extension case body 63 is connected to the base case body 60 and stands up around the swing axis x3, the storage case 6A has a rectangular box shape, and the storage space s1 is formed inside. Then, when the extension case body 63 is in a connected state in which the extension case body 63 is laid down around the swing axis x3 with respect to the base case body 60, a part of the peripheral portion of the storage case 6A which was rectangular box shape before lying down is opened. It will be As described above, when a part of the rectangular box-like peripheral portion is opened, a discharge port capable of discharging the crop is formed in the storage case 6A.

Specifically, the base case body 60 includes a bottom plate 61 having a rectangular shape in a plan view, and the bottom surface of the accommodation space s1 is formed by the upper surface of the bottom plate 61. In the periphery of the bottom plate 61, standing wall plates 62 are erected on three peripheral portions of the four peripheral portions, and the standing wall plates 62 allow the peripheral wall surfaces of the rectangular box-shaped storage case 6A to be raised. Three peripheral wall surfaces are formed.
And the discharge port part 60a of the base case body 60 is formed by the place equivalent to the above standing wall board 62 being not provided in the location corresponded to one remaining peripheral part of the baseplate 61 part.

The extension case body 63 is connected to the peripheral portion of the bottom plate 61 of the base case body 60 at one peripheral portion, that is, the peripheral portion where the discharge port portion 60a is formed via the connecting shaft 63a. Are connected.
The connecting shaft 63a has a swing axis x3 in the left-right direction along the peripheral portion where the discharge port portion 60a is formed, and is located below the upper surface of the bottom plate 61, in the base case The body 60 and the extension case body 63 are connected.
As shown in FIG. 4, the extension case body 63 stands up with respect to the bottom plate 61 of the base case body 60 when it is in a connection posture that stands up around the rocking axial center x3 with respect to the base case body 60. Thus, it is formed in a bowl shape by including an undulating rocking plate 64 provided with an outlet side wall surface 64a for closing the discharge port 60a and a side wall plate 65 projecting in a direction perpendicular to the outlet side wall surface 64a.

In the extension case body 63 configured in this manner, the outlet side wall surface 64 a serves as the discharge port portion 60 a of the base case body 60 when in the connecting posture in which the extension case body 63 is erected around the swing axis x3 with respect to the base case body 60. Shut up. In this state, the accommodation case 6A is in a crop accommodation posture provided with a rectangular box-shaped accommodation space s1.
When the extension case body 63 is in the connection posture in which the extension case body 60 is folded about the swing axis x3 with respect to the base case body 60, the outlet side wall surface 64 a of the rising and lowering swing plate 64 falls and the bottom case 61 a of the base case body 60 is It becomes a posture along the extension direction, and the discharge port 60a is opened. The discharge port portion 60a of the base case body 60 which is opened has a function as the discharge port 6C of the housing case 6A.

When the hook-like extension case body 63 is in the connection posture standing up around the rocking axis x3, the outlet side wall surface 64a at a position facing the discharge port 60a has a flat plate shape without holes of the undulating rocking plate 64. It is formed in part. However, the free end side portion 64b of the outlet side wall surface 64a that protrudes upward with respect to the base case body 60 in the erected connection posture has a bar shape using rod-like members juxtaposed at predetermined intervals in the left-right direction. And formed so as to be transparent in the front-rear direction.
Further, also in the side wall plate 65, the free end side portions 65a protruding upward with respect to the base case body 60 in the connection posture in which the extension case body 63 stands around the swing axis x3 are spaced at predetermined intervals in the front-rear direction. It is formed in a bar shape using rod-like members juxtaposed to each other, and is formed so as to be transparent in the left-right direction.

The extension case body 63 grips the operation rod 68 provided on a part of the side wall plate 65, and is configured to be able to be undulated and rocked by human operation around the rocking axis x3.
Then, the operation bracket 64c is continuously provided at a position near the rocking axis x3 in the rocking rocking plate 64, and the gas spring 67 is provided between the end of the operation bracket 64c and the bottom plate 61 of the base case body 60. It is connected. The gas spring 67 has a biasing force to move the extension case body 63 up and down around the swing axis x3. Therefore, it becomes an operation resistance to swinging the extension case body 63 to the falling side, but when changing the extension case body 63 to the laid posture, the operating rod 68 is operated against the operation resistance. Thus, it is possible to artificially change the attitude.
The biasing force toward the standing posture by the gas spring 67 is not large enough to return the extension case body 63 switched to the lying posture to the standing posture, but the weight of the extension case body 63 switched to the lying posture And, that posture is maintained. Although the posture of the extension case body 63 operated to the standing posture is not shown, the standing posture is maintained by an appropriate locking means.

The driving device 6B for changing the posture of the housing case 6A is configured as follows.
The driving device 6B includes a bottom support frame 70 on which the housing case 6A is mounted, a link mechanism 71 connecting the machine frame 10 and the bottom support frame 70, and an elevating operation for raising and lowering the bottom support frame 70 with respect to the machine frame 10. A cylinder 72 and a dump cylinder 73 for dumping the storage case 6A with respect to the bottom support frame 70 are provided.

  The bottom support frame 70 pivotally supports the housing case 6A pivotably about a pivot axis x4 along the lateral direction close to the discharge port 6C. That is, the inclination angle of the bottom plate 61 portion of the base case body 60 with respect to the bottom support frame 70 changes from a horizontal attitude parallel to the bottom support frame 70 to an inclined attitude where the opposite side becomes higher than the side where the discharge port 60a exists. As is possible, the bottom plate 61 is supported swingably.

  The link mechanism 71 includes a pair of left and right first link members 74 pivotally connected at the lower end to the support bracket 10A of the airframe frame 10 and a pair of left and right first links 74 and the upper end pivotally connected to the support bracket 70A of the bottom support frame 70. The two link member 75 is provided. A rolling roller 74 a is provided on the other end side of the first link member 74, and the rolling roller 74 a is supported relatively slidably by a sliding guide portion 70 B provided on the bottom support frame 70. A rolling roller 75a is provided on the other end side of the second link member 75, and the rolling roller 75a is relatively slidably supported by a sliding guide portion 10B provided on the machine body frame 10.

The sliding guide portion 10B, which supports the other end side of the second link member 75 in a relatively slidable manner, is farther from the outlet 6C than the support bracket 10A, which is a pivot connection portion of the first link member 74 to the body frame 10. The sliding guide portion 70B, which is disposed at the first position and supports the other end side of the first link member 74 in a relatively slidable manner, is a support bracket which is a pivot connection portion of the second link member 75 to the bottom support frame 70. It is disposed at a position farther from the outlet 6C than 70A.
The first link member 74 and the second link member 75 are connected by the connecting pin 76 in such a manner that their respective intermediate positions cross each other. Accordingly, the first link member 74 and the second link member 75 whose middle positions are connected by the connection pin 76 change their postures at equal angles with each other as the elevating cylinder 72 extends and contracts, and the bottom support frame 70 It can be moved up and down while maintaining parallel to 10.

The lower end side of the elevating cylinder 72 is supported by the body frame 10, and the other end side is connected to a position farther from the support bracket 10A than the connecting pin 76 at an intermediate position in the length direction of the first link member 74. The link mechanism 71 is operated according to the extension operation of the cylinder 72, and the height position of the bottom support frame 70 can be changed.
The dump cylinder 73 is connected at the lower end side to a fixed bracket 70C projecting downward from the bottom support frame 70, and the other end side is connected to the bottom plate 61 portion of the base case body 60. The inclination angle of the bottom plate 61 portion is configured to be changeable.

[Root cutting device]
The root cutting device 4 provided to cut the root portion of the crop during conveyance by the extraction and conveyance route r1 is configured as shown in FIGS. 5 to 7.
Of the pair of left and right main support frames 23, a square pipe-shaped attachment support rod 40 extending downward from the main support frame 23 positioned on the inner side of the vehicle body is integrally connected and fixed. , The root cutting device 4 is attached in a suspended state. That is, the front end side of the parallel link mechanism 41 is connected to the mounting support rod 40, and the blade mounting member 42 is supported on the rear end side of the parallel link mechanism 41.
A pair of left and right guide members 43 arranged at a predetermined interval is fixed to the blade attachment member 42 so as to have an introduction path along the extraction and transfer path r1 of the extraction and transfer apparatus 2. Then, a cutter 44 (corresponding to a cutting blade) formed of a flat plate-like fixed blade having a blade edge in a direction crossing the pull-up conveying path r1 is provided over the pair of left and right guide members 43.

The position of the cutter 44 in the crop cutting direction in the root cutting device 4 corresponds to a position higher in the conveying direction than the portion where the cutting blades 24 b and 24 b of the leaf cutting device 24 are present. It is in the range where simultaneous conveyance by 20a and 20a and shoulder alignment conveyance belts 24a and 24a is performed.
Therefore, during simultaneous conveyance by the endless rotating belts 20a and 20a and the shoulder-alignment conveying belts 24a and 24a, the crop posture is stabilized more than in the case where the leaf is pinched only by the endless rotating belts 20a and 20a. Cutting of the root by the cutter 44 is performed.

The root cutting device 4 further includes a biasing member 45 formed of a coil spring that biases the rear end side of the parallel link mechanism 41 upward, and a stopper member 46. The cutter 44 attached to the blade attachment member 42 by the biasing member 45 and the stopper member 46 always keeps the reference height position (corresponding to the reference position) constant with respect to the endless rotation belts 20a and 20a. It is biased to the maintaining side (see the state of the solid line in FIG. 5).
Therefore, for example, as shown by an imaginary line in FIG. 5, the diameter of the crop to be transported through the pull-up transport route r1 is large, and the root of the crop at the cutting time is lower than the cutter 44 in the posture at the reference position. Is sent in a state of reaching, the parallel link mechanism 41 is pushed down according to the size of the crop (see the state of the phantom line in FIG. 5). In this state, the cutter 44 moves to the side (lower side) away from the endless rotating belts 20a and 20a, and cuts the appropriate position near the root of the large crop at that position.

As described above, although the cutter 44 moves in the near and far directions with respect to the endless rotation belts 20a and 20a, the cutter 44 is supported via the parallel link mechanism 41. Therefore, the cutter 44 is relative to the endless rotation belts 20a and 20a. Even if the vertical position changes, the cutting direction of the cutter 44 is maintained substantially parallel to the posture at the reference height position so as to be along the crop conveying direction by the endless rotating belts 20a and 20a. Get down.
Then, even if the relative position between the endless rotating belts 20a and 20a and the cutter 44 temporarily changes due to the position change of the cutter 44 vertically, the cutter 44 is moved by the biasing member 45 when the crop passes the cut portion. Is returned to the reference position defined by the stopper member 46.

The parallel link mechanism 41, as shown in FIGS. 6 and 7, includes an upper link 41U and a lower link 41D pivotally connected to the mounting support rod 40 at the proximal end side, and includes the upper link 41U and the lower link 41D. A vertical link 41V is pivotally connected to the free end side of the. That is, the parallel link mechanism 41 serving as the four-joint rotation mechanism is configured by the mounting support rod 40, the upper link 41U, the lower link 41D, and the vertical link 41V.
The distance between the connection point p2 on the base end side of the upper link 41U and the connection point p3 on the free end side is the same as the distance between the connection point p4 on the base end side of the lower link 41D and the connection point p5 on the free end side It is set almost identically. Further, the distance between the connection points p2 and p4 on the proximal side is set to be the same as or substantially the same as the distance between the connection points p3 and p5 on the free end side.

  At an intermediate position in the vertical direction of the vertical link 41V, a support arm 47 is provided so as to project laterally outward in the left-right direction of the machine. The blade attachment member 42 formed in the shape of an upper open channel is welded and fixed to the tip of the support arm 47. Guide members 43, which are formed such that intermediate portions in the front-rear direction are refracted, are bolted to the upper end portions of the blade attachment member 42 in a detachable manner.

As shown in FIG. 7, the guide members 43 are located on the left and right sides of the pull-up conveyance route r1 in plan view so as to guide the crop moving on the pull-up conveyance route r1 to the center side in the left-right direction, It has an inclined side guide surface 43a (corresponding to a guide surface) in which the upper side is wide in the crop transport direction and the lower side is narrower. The cutter 44 having a blade edge in a direction orthogonal to the pull-up conveyance path r1 is attached on the downstream side of the side guide surface 43a in the direction along the pull-up conveyance path r1, that is, at the rear end of the guide member 43 It is done.
Incidentally, although FIG. 7 is described as a plan view for the sake of convenience, it is a view as seen from a direction along the longitudinal direction of the mounting support rod 40 which is provided to project obliquely downward and backward from the main support frame 23.

Further, as shown in FIGS. 5 and 6, the guide member 43 is formed to be bent forward and downward so as to be positioned on the side away from the endless rotation belts 20a and 20a in the crop transport direction in the side view. An upper guide surface 43b (corresponding to a guide surface) is also formed.
The upper guide surface 43b contacts the lower portion of the crop conveyed while being held between the endless rotating belts 20a and 20a, and changes the height position of the cutter 44 to a position according to the size of the crop being moved. As a result, the parallel link mechanism 41 is operated. The upper guide surface 43 b and the inclined side guide surface 43 a which is narrowed at the lower side in the crop conveyance direction are the same as the upward direction of the same guide member 43 because the guide member 43 is bent in a round bar shape. And an inward facing surface toward the center side of the pull-up conveying path r1.
Therefore, as shown by a phantom line in FIG. 5, if the crop has a large diameter, the lower portion of the crop at a position closer to the upper side in the crop conveyance direction in the upper and lower guide surface 43b of the guide member 43. And the parallel link mechanism 41 swings downward as the guide member 43 having the upper front surface 43b is pushed down with the backward movement of the crop. Become.

[1 of another embodiment]
In the above embodiment, the root cutting device 4 is configured to change the cutting height position by the cutter 44 using the parallel link mechanism 41 and the upper and lower upper guide surface 43b of the guide member 43. However, the present invention is not limited to this structure.
For example, although not shown, a sensor for detecting the position and size of the crop which is nipped and conveyed by the endless rotating belts 20a and 20a, and the height position of the cutter 44 vertically or the endless rotating belt 20a, It may be configured to be moved in the perspective direction with respect to 20 a to change the cutting height position by the cutter 44.
The other configuration may adopt the same configuration as that of the embodiment described above.

[2 of another embodiment]
In the above embodiment, the cutter 44 of the root cutting device 4 is exemplified by a flat cutter 44 attached to the guide member 43 in a state of crossing the pull-up conveyance path r1. It is not limited to
For example, instead of the flat plate-like cutter 44, a pair of disk-like cutters that are rotationally driven may be used.
The other configuration may adopt the same configuration as that of the embodiment described above.

  The present invention may be applied to a root vegetable harvester that harvests various root vegetables such as daikon radish, carrots, onions, etc. as well as the subject to be processed.

DESCRIPTION OF SYMBOLS 1 traveling body 2 extraction conveyance apparatus 4 root cutting apparatus 20 pinching conveyance apparatus 23 support frame 24 leaf cutting apparatus 40 attachment support lever 41 parallel link mechanism 42 blade attachment member 43 guide member 43 b guide surface 44 cutting blade 45 biasing member k1 Main crop area r1 transportation route

Claims (5)

It is provided at a location near one side in the left-right direction of the traveling machine body, and is provided with a removal and transfer device for removing the crop of the field and transferring it backwards,
The extraction and transfer device holds and removes the leaves of the crop and transports it backwards; a leaf portion cutting device for cutting the leaves of the crop in the middle of the transfer; and a transfer direction from the leaf portion cutting device Equipped with a rooting device that cuts the root of the crop in the middle of transport,
The root cutting device includes a blade attachment member on which a cutting blade is mounted, and a parallel link mechanism that supports the blade attachment member in a position changeable in the vertical direction, and a cutting position for a crop being transported Up and down position changeable ,
The parallel link mechanism is disposed on the inboard side of the traveling machine body relative to the transfer path of the extraction and transfer device.
The blade attachment member is connected to a support arm extended from the parallel link mechanism to the outer side of the machine, and the blade attachment member is disposed in a state where the cutting blade is positioned below the transport path. Root vegetables harvester being done . The parallel link mechanism, said sampling transport device to a support frame for causing equipped vehicle body, the support frame from the claim 1, characterized in that mounted in a suspended state via a mounting support rod that is provided continuously downward Root vegetable harvester. The cutting blade, before Ki搬 feed path root harvesting machine according to claim 1 or 2, wherein is composed of a fixed blade having a direction of the blade edge across the said roots cutting device. The blade mounting member, before provided with a guide member having a introduction path along Ki搬 feed path, and the biasing member is provided for biasing the side that contacts the crops main portion being conveyed to the guide member The root vegetable harvester according to any one of claims 1 to 3 . The root vegetable harvester according to claim 4 , wherein the guide member is formed with a guide surface which contacts the lower part of the crop moving along the transport path to guide the cutting blade to the proper cutting height position for the crop. .

Images