JP2000270641A - Working machine for cultivated crop - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a useful working machine capable of facilitating the peeling-off operation of a film at the time of harvesting of crops cultivated by mulch cultivation, capable of improving efficiency of harvesting operation and saving the labor for the operation. SOLUTION: This working machine has a traveling body A equipped with a raising device C for raising a stem and leaf part 1a of a cultivated crop 1, a stem and leaf-nipping and conveying device D for nipping the raised stem and leaf part 1a and conveying the stem and leaf part in the rear upper direction, and a cutting device J for cutting the nipped and conveyed stem and leaf part 1a from the rhizome part 1b connected thereto at the prescribed position while leaving the rhizome part 1b at the cultivated cite at the starting terminal part of the nipping and conveying of the stem and leaf-nipping and conveying device D, or the neighbor position thereof.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a working machine used for harvesting cultivated crops such as onions.

[0002]

2. Description of the Related Art When harvesting an onion, which is an example of a cultivated crop, generally, a raising device for raising the foliage portion of the onion, and a bulb portion (a root vegetable in root vegetables) which holds the raised foliage portion and sandwiches the raised foliage portion. The foliage clamping and conveying device which conveys the rear upward while pulling out the roots)
A lower clamping / conveying device which clamps the foliage on the bulb side of the foliage clamping / conveying device and conveys it to the rear, and a cutting for cutting the foliage between the clamping positions of the two clamping / conveying devices at a predetermined position. An onion harvesting machine in which the apparatus and the vehicle are arranged on a traveling body is used. Then, while running the onion harvester along the ridges, the foliage portions of the onions lying down and overlapping are raised by a raising device, and the raised foliage portions are clamped by a foliage clamping and transporting device and upwardly rearward. By transporting, pull out the bulb part of the onion from the ridge,
Of the foliage to be pinched and conveyed, the foliage on the bulb side from the clamping position of the foliage clamping and conveying device is clamped and conveyed by the lower clamping and conveying device, and the predetermined position of the foliage clamped by both clamping and conveying devices. Is cut by a cutting device. The cut foliage, which becomes the cutting waste after the cutting process, is released from the transport end of the foliage clamping and transporting device, and the bulb is released from the transport terminal of the lower clamping and transporting device.

[0003]

However, in mulch cultivation in which ridges are covered with a synthetic resin film for cultivation,
The bulb portion of the onion is easily caught on the periphery of the hole formed in the film, and since the film is lifted through the cultivated soil at the time of pulling out the bulb portion, the pulling resistance of the onion increases, and the onion harvesting machine as described above is used. Could not be used. In addition, it is conceivable to peel off such a synthetic resin film, which is an obstacle to such mechanization, in advance.However, the long foliage of the onions is laid down and overlaps each other. Since a plurality of onions are cultivated in a shape, the peeling resistance of the film becomes extremely large, and the work of peeling the film itself requires a great deal of labor and time. For this reason, at the time of harvesting onions cultivated in mulch cultivation, it is a current practice to hold the perimeter of the film with one hand while holding the foliage of the onion with the other hand and pull it out. In addition, a cutting step of cutting the foliage of the harvested onion into a predetermined size suitable for subsequent processing such as bundling for drying or the like is added, so that much labor and labor are required for the harvesting operation.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned circumstances, and a first main problem thereof is to facilitate film peeling operation and harvesting of crops cultivated in mulch cultivation. A second object of the present invention is to provide a useful working machine for cultivated crops that can achieve work efficiency and labor saving.
The main issue is that the rational modification of the existing work equipment for cultivated crops makes it easier to remove the film when harvesting crops cultivated in mulch cultivation, and to improve the efficiency and efficiency of harvesting work. This is an advantage.

[0005]

The feature of the working machine for cultivated crop according to claim 1 of the present invention is that a traveling machine body holds a raising device for raising foliage of a cultivated crop and a raised foliage. Foliage conveyer that conveys the leaf and upper part backward and upward, and cuts the foliage to be conveyed at a predetermined position while leaving the rhizome connected thereto at the cultivation area at or near the starting end of the foliage conveyer. And a cutting device for performing the cutting operation. [Action] According to the above-mentioned characteristic configuration, when harvesting crops such as onions cultivated on a mulch basis, the foliage of the cultivated crops that have laid down and overlapped with each other while running the traveling machine along the cultivation area such as the ridges. The foliage raised and raised by the raising device is clamped by the foliage clamping and transporting device and transported rearward and upward. At this time, a cutting device arranged at or near the starting end of the nipping and transporting can cut the foliage in the standing posture to be nipped and transported at a predetermined position while leaving the rhizome connected thereto in the cultivation area. The cut foliage, which becomes the cutting waste after the cutting process, is discharged from the transport end of the foliage holding and transporting device. [Effect] Therefore, when the synthetic resin film covering the cultivation area is peeled off, the resistance due to the foliage of the cultivated crop can be significantly reduced, and the foliage of the harvested crop is reduced to a predetermined size. Therefore, the number of cutting steps for preparing the film can be reduced, so that the film peeling operation at the time of harvesting in mulch cultivation can be facilitated, the harvesting operation can be performed more efficiently, and labor can be saved.

According to a second aspect of the present invention, there is provided a working machine for cultivated crops, wherein the traveling machine body includes a raising device for raising the foliage of the cultivated crop, and a pulling up the rhizome while holding the raised foliage. A foliage holding and conveying device that conveys upward and backward,
Of the foliage to be nipped and transported, it is located between a lower nipping and transporting device that grips and transports the foliage portion on the side of the rhizome side from the nipping position of the foliage and nipping transporting device, and a clamping position of the two nipping and transporting devices. A working machine for cultivated crops, which is provided with a first cutting device for cutting a foliage portion at a predetermined position, wherein the foliage holding and transporting device has a nipping and conveying starting end or a position near the nipping and conveying end.
The present invention is characterized in that it is possible to arrange a second cutting device for cutting the foliage portion to be clamped and conveyed at a predetermined position while leaving the rhizome portion connected thereto in the cultivation area. [Operation] According to the above-mentioned characteristic configuration, at the time of harvesting a crop cultivated in the open field, the foliage of the onions that lie down and overlap with each other is raised by the raising device while running the traveling machine along the cultivation area such as the ridge. The raised foliage is pinched and conveyed rearward and upward by the foliage clamping and conveying device, thereby pulling out the rhizomes of the cultivated crop from the ridges. While the foliage portion on the bulb side from the position is clamped and conveyed by the lower clamping and conveying device, a predetermined position of the foliage portion clamped by these clamping and conveying devices can be cut by the first cutting device. The cut foliage, which becomes cutting chips after the cutting process, is released from the transport end of the foliage clamping and transporting device, and the rhizome is released from the transport terminal of the lower clamping and transporting device. When harvesting a multi-cultivated crop, the foliage to be clamped and conveyed is placed at a predetermined position at or near the clamping and conveying start end of the foliage clamping and conveying device, while keeping a rhizome connected thereto in the cultivation area. The 2nd cutting device which cut | disconnects by is arrange | positioned. And while running the traveling machine along the cultivation area such as ridges,
The foliage of the cultivated crops that lie down and overlap with each other is raised by a raising device, and the raised foliage is clamped by a foliage clamping and conveying device and transported rearward and upward. At this time, the foliage in the standing posture to be nipped and conveyed is cut at a predetermined position by a second cutting device disposed at or near the starting end of the nipping and conveying while leaving the rhizomes connected to it in the cultivation area. Can be. The cut foliage, which becomes the cutting waste after the cutting process, is discharged from the transport end of the foliage holding and transporting device. Therefore, when the synthetic resin film covering the cultivation area is peeled off, the resistance caused by the foliage of the cultivated crop can be significantly reduced, and the foliage of the harvested crop is adjusted to a predetermined size. Cutting steps can be reduced. [Effect] Therefore, since the pulling device and the foliage holding and conveying device provided in the existing working machine for cultivated crops can be used as they are, the second cutting is carried out at or near the starting position of the foliage holding and conveying device. With a simple and economical remodeling that simply configures the apparatus so that it can be arranged, it is possible to facilitate the peeling-off work of the film at the time of harvesting in the mulch cultivation, to improve the efficiency of the harvesting work, and to save labor.

The cultivated crop working machine according to the third aspect of the present invention is characterized in that the foliage for feeding the cut foliage portion conveyed to one side in the left-right direction is provided at the clamping and conveying end of the foliage clamping and conveying device. The point is that a discharging means is provided. [Operation] According to the above-mentioned characteristic configuration, the cut foliage portion, which has been nipped and conveyed rearward and upward by the foliage nipping and conveying device, is sent out to one side in the left-right direction by the foliage discharging means and is discharged, so that the cutting debris is removed. It is possible to prevent the cut foliage portion from being released onto the rhizome portion left in the cultivation area, or from being released onto the foliage portion of the cultivated crop in the adjacent row. In particular, when the cut foliage is discharged to the bottom of the ridge, unnecessary cut foliage on the film covering the ridge can be significantly reduced. [Effect] Therefore, it is possible to prevent the raising action by the raising device and the clamping and conveying action by the foliage clamping and conveying device from being disturbed by the released cut foliage, and at the time of harvesting the crop cultivated in the mulching cultivation. In addition, it is possible to reduce the labor required for removing unnecessary cut foliage on the film, and to facilitate the work of peeling the film.

A feature of the working machine for cultivated crops according to claim 4 of the present invention resides in that a cutting position adjusting means for adjusting a mounting position of the second cutting device at least one of up and down and front and rear is provided. . [Operation] According to the above-mentioned characteristic configuration, the foliage raised by the raising device is nipped and conveyed rearward and upward by the foliage nipping and conveying device, so that the mounting position of the second cutting device can be moved up and down and back and forth by the cutting position adjusting means. By adjusting to at least one, the length of the foliage on the rhizome side remaining in the cultivation area can be adjusted to an arbitrary length. [Effect] Therefore, the length of the harvested foliage on the rhizome side can be adjusted to a desired length suitable for subsequent processing such as bundling for drying.

According to a fifth aspect of the present invention, there is provided a working machine for cultivated crops, wherein the second cutting device is configured to be detachable from a traveling machine. [Operation] According to the above-mentioned characteristic configuration, by attaching and detaching only the second cutting device to and from the traveling machine body while the first cutting device is mounted on the traveling machine body, a working machine corresponding to harvesting in open-field cultivation can be provided. It is possible to selectively show a working machine corresponding to the harvest in the multi-cultivation. [Effect] Therefore, since there is no need to change the mounting structure of the first cutting device provided in the existing working machine for cultivated crops, the working machine can be advantageously modified in terms of manufacturing and manufacturing costs. it can.

According to a sixth aspect of the present invention, there is provided a working machine for cultivated crops, wherein the first cutting device and the second cutting device are constituted by a single cutting device, and the cutting device is held by both sides. The present invention is characterized in that there is provided a mounting position changing means for changing between a state in which the conveying device is arranged between the clamping positions and a state in which the stem and leaf clamping and conveying device is arranged at or near the starting end of the conveying process. [Operation] According to the above-mentioned characteristic configuration, a state in which a single cutting device serving both as the first cutting device and the second cutting device is arranged between the holding positions of both holding and conveying devices by the mounting position changing means. By changing to the state where it is installed at or near the starting end of the pinch and conveyance device of the foliage holding and conveying device, it is possible to selectively select a working machine that supports harvesting in open field cultivation and a working machine that supports harvesting in mulch cultivation. Can emerge. [Effect] Therefore, not only can the first cutting device and the second cutting device be configured as a single cutting device, but also
Since only one transmission system is required for the cutting device, the manufacturing cost can be reduced in this aspect.

According to a seventh aspect of the present invention, there is provided a working machine for cultivated crops, wherein the first cutting device and the second cutting device are permanently installed on a traveling machine body, and a driving rotary shaft of the first cutting device is provided. And a single cutter is configured to be freely replaceable with respect to the drive rotation shaft of the second cutting device. [Operation] According to the above-mentioned characteristic configuration, with a simple operation of merely replacing a single cutter with respect to the drive rotation shaft of the first cutting device and the drive rotation shaft of the second cutting device which are permanently installed in the traveling machine body, A work machine corresponding to the harvest in the open cultivation and a work machine corresponding to the harvest in the mulch cultivation can be selectively displayed. [Effect] Therefore, the work for changing the working machine between the open cultivation specification and the multi-cultivation specification can be efficiently and easily performed with a small amount of labor.

The cultivated crop working machine according to the eighth aspect of the present invention is characterized in that a cutting position changing means for changing a mounting position of the first cutting device along a vertical direction is provided, Part of the power transmission system to the cutting device,
In order to absorb a change in transmission distance due to a change in the mounting position of the first cutting device, the first cutting device is constituted by a plurality of transmission mechanisms that are flexibly connected around a horizontal axis. The transmission mechanism on the side of the first cutting device and the transmission mechanism operatively connected to the second cutting device are configured to be interchangeable. [Operation] According to the above-mentioned characteristic configuration, the cutting position changing means changes the mounting position of the first cutting device along the vertical direction, thereby cutting the cutting position of the foliage portion held by the two holding and conveying devices. That is, the length of the foliage on the side of the rhizome to be conveyed by the lower conveyer can be adjusted to an arbitrary length. In addition, among the plurality of transmission mechanisms that are flexibly connected around the axis of the horizontal axis, the transmission mechanism on the driving part side is different from the transmission mechanism on the prime mover side in order to absorb the transmission distance variation accompanying the change in the mounting position of the first cutting device. By changing the transmission mechanism of the first cutting device side and the transmission mechanism that is operatively connected to the second cutting device, a working machine corresponding to the harvest of the crop cultivated in the open cultivation and the crop cultivated in the mulch cultivation And a working machine corresponding to the harvest of the rice. [Effect] Therefore, the length of the foliage on the side of the rhizome to be harvested can be adjusted not only to the desired length suitable for subsequent processing such as bundling for drying, but also to the first cutting device. By using a part of the power transmission system, the transmission system of the second cutting device can be advantageously manufactured in terms of manufacturing cost.

According to a ninth aspect of the present invention, there is provided a working machine for cultivated crops, wherein the lower holding / conveying device has a gently inclined posture or a horizontal posture in which an interval between the lower holding / conveying device and the foliage clamping / conveying device becomes larger toward the conveying end. And a clamping force that allows vertical movement relative to the foliage of the crop that is clamped and conveyed by the foliage clamping and conveying device until the rhizome of the crop abuts. . [Operation] According to the above-mentioned characteristic configuration, the position where the foliage is clamped at the transport start end of the foliage clamping and transporting device and the transport starting end of the lower gripping and transporting device depends on conditions such as the degree of crop growth and the state of raising the foliage. Even if it fluctuates, the foliage clamped by the lower clamping and conveying device until the rhizome of the crop clamped and conveyed by the stem and leaf clamping and conveying device contacts the lower clamping and conveying device,
The foliage is located between the clamping positions of both clamping and conveying devices when the rhizome of the crop is in contact with the lower clamping and conveying device as a result of sliding upward due to the clamping and conveying force of the foliage clamping and conveying device. Is almost in a stretched state. [Effect] Therefore, the position of the rhizome portion of the crop is regulated to a fixed position by contact with the lower clamping and conveying device, and the stem and leaves located between the clamping positions of the both clamping and conveying devices are substantially extended. By cutting the foliage in this state with the first cutting device, the length of the foliage on the side of the rhizome to be harvested is substantially reduced to a desired length suitable for subsequent processing such as bundling for drying. It can be made uniform.

According to a tenth aspect of the present invention, a feature of the working machine for cultivated crops is that the traveling machine is equipped with a digging device for digging near a rhizome of a cultivated crop as the machine advances. is there. [Operation] According to the above-mentioned characteristic configuration, the vicinity of the rhizome of the cultivated crop is excavated and digged by the device with the progress of the traveling machine so that the cultivation area around the rhizome can be loosened and rooted. By the synergy, the operating force required to pull out the rhizome of the cultivated crop can be significantly reduced. [Effect] Therefore, the rhizome of the cultivated crop can be reliably and easily extracted with a small operation force.

[0015]

DESCRIPTION OF THE PREFERRED EMBODIMENTS [First Embodiment] FIGS. 1 to 11
Shows a walking-type onion harvesting machine, which is an example of a working machine for cultivated crops, and a pair of left and right driving rear wheels 2 and ridges R running along the ridge longitudinal direction while straddling a ridge R as a cultivation area. On a traveling body A provided with a driven front wheel (gauge wheel) 3 that rolls in advance on one side of the left and right sides, scoops the foliage 1a of the onion 1 which has fallen down so as to lie in the left and right direction from below along the front and rear direction. The foliage 1
a, a weeding device B for arranging the a in a posture along the front-rear direction, a raising device C for scooping the foliage 1a of the weeded onion 1 from the left and right directions and raising it rearward and upward, and a foliage 1
and a leaf-and-leaf clamping and conveying device D that conveys upward and backward while pulling out a bulb portion 1b as a rhizome portion, and the rhizome portion 1b of the leaf and leaf portion 1a that is clamped and transported from the clamping position of the leaf and leaf clamping and conveying device D. A lower clamping and conveying device E for clamping the foliage on the side and horizontally transporting it rearward;
A first cutting device F that cuts the foliage portion 1a located between the clamping positions of E at a predetermined position, and a bulb portion 1b sent out from the transport end of the lower clamping and transporting device E are aligned on the ridge R. An aligning and discharging device G for discharging and an excavating device H for excavating the vicinity of the bulb portion 1b of the onion 1 as the fuselage advances are provided.

Further, the foliage part 1a to be nipped and conveyed is left on the ridge R at the beginning of the nipping and conveying part of the foliage clamping and conveying apparatus D or in the vicinity thereof at the time of harvesting during mulching. Mounting means for enabling a second cutting device J for cutting at a predetermined position as it is, in other words, the second cutting device J
Mounting means K for detachably attaching the cutting device J to the traveling machine A; and cutting position adjusting means L for adjusting the attachment position of the second cutting device J to the traveling machine A up and down and back and forth. , Said foliage clamping and conveying device D
The foliage discharge means M which sends out the cut foliage 1a, which becomes the cutting waste conveyed by flanking, to one side in the left-right direction (the right side in the present embodiment) and drops it at the bottom between the ridges M at the end of the nipping and conveying. Is provided.

As shown in FIGS. 1 to 6, the weeding apparatus B has a mounting plate 14 fixed to the front end side of a body frame 5 constituting a traveling body A, with an interval corresponding to a space between crop cultivation strips. The three weeding transmission cases 7 arranged side by side are fixed in a rearwardly inclined posture that is located rearward toward the top, and each of the weeding transmission cases 7 has a shaft rotatable around a horizontal axis in the left-right direction. A pair of upper and lower sprocket wheels 8 and 9 supported, an endless chain (endless rotating body) 10 wound around both sprocket wheels 8 and 9, and a plurality of locations in the rotating direction of the endless chain 10 along the chain rotating plane. Weeding claws 11 and the like, which are pivotally attached to each other, are provided at the lower end of each weeding transmission case 7 in the horizontal direction prior to the weeding action by the weeding claws 11. Foliage 1 of onion 1 lying down so as to lie down And it is configured to be secured minute grass divider 12 frying scoop supplementarily.

Then, the foliage 1a of the onion 1 scooped and fried by the weeding divider 12 is removed from below by the weeding claw 11 which is turned upright at the lower end of each weeding transmission case 7 outside the case. After scooping up in the front-rear direction, it is pulled up rearward by the weeding claw 11 that moves to the upper end in the standing posture, thereby aligning the foliage 1a of the onion 1 in the posture along the front-rear direction. At the same time, the stem and leaves 1a of the onions 1 to be harvested are separated from the stems and leaves 1a of the onions 1 to be harvested in the next step. The weeding divider 12 that moves along the slope of the ridge R among the weeding dividers 12 has a weeding cover that projects outward in the left-right direction while covering the front end of the driven front wheel 3 from the entire surface. 13 is attached.

The raising device C, as shown in FIGS. 1 to 6, forms a single raising path for the foliage 1a of the two onions 1 at the front end of the body frame 5 between the opposing surfaces. A pair of left and right raising frames 15 are fixed in the rearwardly inclined posture at the same inclination angle as the weeding transmission case 7.
Upper and lower pulleys 16 and 17 rotatably supported around an axis perpendicular to the inclined surface;
Endless belt (endless rotating body) 18 wound around 6, 17
Each of the endless belts 18 is provided with a plurality of raising claws 19 having a receding angle with respect to the raising direction.
Are formed so as to protrude in an intersecting posture in which the tip portions of one of the left and right raising claws 19 enter between the tip portions of the other adjacent raising nails 19.

Then, with the driving rotation of the driving pulley 16 positioned above the raising frame 15, the left and right raising claws 19 are rotated.
Is circulated from the lower front to the upper rear along the raising path, so that the foliage 1a of the two onions 1 weeded by the weeding device B is scooped up from the left and right directions and raised upward and rearward. Is raised in a substantially linear vertical posture suitable for delivery to the foliage holding and conveying device D.

As shown in FIGS. 2 to 6, the foliage holding and conveying apparatus D forms a nipping and conveying path for the two foliage portions 1a caused by the raising device C between the opposing surfaces in the machine body frame 5. A pair of left and right foliage holding and transporting frames 21 are fixed in a rearwardly inclined posture having a smaller inclination angle than the raising frame 15, and each foliage holding and transporting frame 21 is provided with an axis center perpendicular to its inclined surface. And upper and lower pulleys 22 and 23 which are rotatably supported by an endless belt, and an endless clamping / conveying belt (endless clamping / conveying rotating body) 24 wound around the pulleys 22/23.

The end of the endless holding and conveying belt 24 of the endless holding / conveying belt 24 is located close to a position slightly deviated from the starting part on the back side of the elevating device C. The onion force of the onion 1 is such that the bulb portion 1b of the two onions 1 can be pulled out from the ridge R, and the bulb portion 1b of the onion 1 which is clamped and conveyed by the two endless clamping and conveying belts 24 moves downward to the lower clamping and conveying device E. The onion 1 is configured to have a clamping force that allows relative movement of the onion 1 with the foliage 1a due to the vertical movement (slip) with the subsequent conveyed conveyance.

The onion raised in the upright position by the raising device C by circulating the two endless gripping and transporting belts 24 in accordance with the driving rotation of the driving pulley 22 located above the stem and leaf gripping and transporting frame 21. The bulb portion 1b is conveyed upward and rearward while the bulb portion 1b is pulled out from the ridge R while holding the stem portion 1a. Further, since the raising end portion of the raising device C is disposed above the intermediate position of the nipping and conveying path, even if the foliage 1a is long, the foliage 1 in the middle of the nipping and conveying is not required.
a can be suppressed.

The foliage discharging means M is shown in FIGS.
As shown in the figure, the drive shaft 26 of the drive pulley 22 located on the discharge side (the right side in this embodiment) of the cutting foliage portion 1a among the left and right drive pulleys 22 of the foliage holding and conveying device D.
A star wheel 27, which is an example of a foliage discharge rotating body, is fixed thereto, and the cut foliage portion 1a locked and conveyed by the two star wheels 27 is transported along a substantially L-shaped release transport path in plan view. The release guide rod 28 and the cut foliage 1a released from the release transfer path are dropped and released on the bottom surface Ra between the adjacent ridges R, that is, the bottom surface Ra between one driving rear wheel 2 and the slope of the ridge R. A discharge chute 29 for guiding is provided.

As shown in FIGS. 2 to 7, the lower holding / conveying device E forms a holding / conveying path between two opposing surfaces on the body frame 5 for the two streaks 1a caused by the raising device C. A pair of left and right lower holding / conveying frames 31 are fixed in a horizontal position or a substantially horizontal position in which the distance between the holding positions in the vertical direction with the foliage holding / conveying device D becomes larger toward the conveying end side. Reference numeral 31 denotes a drive pulley 3 rotatable around a vertical axis located at the start end of the holding conveyance path.
2. A driven pulley 33 rotatable around the longitudinal axis located at the end of the holding / conveying path, and an endless holding / conveying belt (endless holding / conveying rotating body) wound around both pulleys 32, 33.
4. Tension state and foliage 1a that can pinch and transport foliage 1a
And a tension pulley 35 operable to switch between a relaxed state in which the gripping is released. When the onion 1 cultivated in the open field is harvested, the tension pulley 3 is set to be in a tensioned state capable of being pinched and transported, and the foliage 1a to be pinched and transported is left on the ridge R with the bulb 1b connected thereto. At the time of harvesting in the multi-cultivation in which the cutting process is performed at a predetermined position while maintaining the tension, the tension pulley 3 is operatively set to a relaxed state in which the clamping is released.

The end of the endless holding / conveying belt 34 is located at a position slightly deviated from the starting end of the conveying side on the lower surface of the stem / leaf holding / conveying device D. The holding force of the conveyor belt 34 is such that the onion 1 can be held and transported in a suspended state, and
Sliding of the onion 1 in the vertical direction (slip) with the foliage 1a of the onion 1 until the bulb portion 1b of the onion 1 conveyed by the foliage clamping and conveying device D contacts the lower clamping and conveying device E from below.
The pinching force allows relative movement by the force. Therefore, the holding position of the foliage 1a at the transfer start end of the foliage holding and conveying device D and the transfer start end of the lower holding and conveying device E is as follows.
Even if it fluctuates depending on conditions such as the degree of growth of the onion 1 and the raised state of the foliage 1a, the bulb portion 1b of the onion 1 clamped and conveyed by the foliage clamping and conveying device D contacts the lower clamping and conveying device E. The stem and leaf portion 1a clamped by the lower clamping and conveying device E is relatively moved upward while sliding under the clamping and conveying force of the stem and leaf clamping and conveying device D. As a result, the bulb portion 1b of the onion 1 is moved downward by the lower clamping and conveying device. In the state of contact with E, the foliage portion located between the holding positions of both holding / conveying devices D and E is almost in an extended state. Further, after the bulb portion 1b of the onion 1 comes into contact with the lower holding / conveying device E from below, the holding portion of the foliage holding / conveying device D and the foliage portion 1a slide relative to each other while sliding in the vertical direction. The stretched state of the foliage 1a can be maintained while avoiding breakage or the like of 1a. Accordingly, the position of the bulb portion 1b of the onion 1 is restricted to a fixed position by contact with the lower holding and conveying device E, and the foliage located between the holding positions of the two holding and conveying devices D and E is substantially in an extended state. Thus, by cutting the foliage 1a with the first cutting device F in this state, the length of the foliage 1a on the side of the bulb 1b to be harvested is suitable for subsequent processing such as bundling for drying. The length can be made substantially constant at a desired length.

The aligning and discharging device G is shown in FIGS. 3, 5, and 6.
As shown in FIG.
The upper and lower first discharge guide rods 72 and second discharge guide rods 74 for changing and guiding the foliage 1a on the bulb part 1b side conveyed in step 4 to the posture along the left-right direction, and both endless clamping conveyance belts 34. An endless alignment belt (endless transfer rotating body) 73 with a projection 73a for transferring the bulb portion 1b sent from the transport end portion downward is provided, and the cut leaf-and-leaf portion 1a having a bindable length is provided. It is configured to release the bulb portion 1b while aligning it in a posture along the left-right direction. An upper driving pulley 75 and a lower driven pulley 76 around which the endless alignment belt 73 is wound.
Is a supporting frame 77 supported on the lower holding / conveying frame 31 side.
Are rotatably supported around a horizontal axis in the left-right direction.

As shown in FIG. 8 and FIG. 9, the first cutting device F is provided in a cutter case 37 which opens to one side (left side) and downward in the left-right direction. An input shaft 38 rotatably supported around the core, a drive rotary shaft 39 rotatably supported around the vertical axis, and a pair of bevel gears 40 interlocking the both shafts 38, 39 are provided. A rotary mounting body 41 having an annular groove 41a into which the opening end of the vertical cylindrical case portion 37A of the cutter case 37 is fitted is mounted on the driving rotary shaft 39 via a key 42 and one first bolt 43. The rotating mount 41 is provided with a holding and conveying path of a foliage holding and conveying device D and a lower and holding conveying device E.
The saw blade-shaped rotary cutter 45 facing the nipping and conveying path of
It is detachably attached via a plurality of (three in this embodiment) second bolts 44 and nuts 53. Therefore, the rotation cutter 45 can be replaced with another rotation cutter by attaching or detaching the rotation attachment body 41 to or from the drive rotation shaft 39 or attaching or detaching the rotation cutter 45 to or from the rotation attachment body 41.

As shown in FIG. 5, FIG. 6, FIG. 8, and FIG. 10, a cutting position for changing the mounting position of the first cutting device F in the vertical direction substantially along the inclination direction of the foliage holding and conveying device D. And a part of a power transmission system to the input shaft 38 of the first cutting device F
In order to absorb a transmission distance variation caused by a change in the mounting position of the cutting device F, the driving unit is constituted by a plurality of (two in this embodiment) transmission mechanisms P1 and P2 that are flexibly connected around the horizontal axis X. The first transmission mechanism P1 on the engine 4 side
, The second transmission mechanism P2 on the other first cutting device F side
And a third transmission mechanism P3, which is operatively connected to the input shaft 56 of the second cutting device J, is configured to be interchangeable.

The cutting position changing means N is shown in FIGS.
As shown in FIG. 8, the foliage is fixed to the mounting frame 46 fixed between the main cylindrical frame 5A in the front-rear direction of the body frame 5 and the foliage holding and transporting frame 21 of the foliage clamping and conveying device D. A pair of guide rods 47 and 48, which are positioned parallel to each other at an inclination angle slightly larger than the inclination angle of the transfer device D, are erected, and the horizontal cylindrical case 37B of the cutter case 37 And a guide rod 48 on the small diameter side.
Mounting seat 3 for fastening a substantially U-shaped sliding guide member 49 slidably engaged with the bolt with a bolt.
7D and a bolt 5 with an operation knob 52a inserted from the outside into a long hole 51 formed in the mounting frame 46.
2 and a fixed connecting piece 37E having a female screw hole (not shown) which can be screwed into the fixing member 37.

The mounting position of the first cutting device F can be freely changed within the range of the elongated hole 51, and the bolt 52 with the knob 52a is screwed and fixed to the fixed connecting piece 37E of the cutter case 37. Thus, the first cutting device F can be fixed to the attachment frame 46 on the body frame 5 side.

As shown in FIGS. 6 and 10, the second cutting device J is provided in a cutter case 55 which is open to one side (left side) and downward in the left-right direction. An input shaft 56 rotatably supported around the core, a drive rotary shaft 57 rotatably supported around the vertical shaft, and a pair of bevel gears 58 interlocking the both shafts 56 are provided. The drive rotary shaft 57 is provided with a rotary mounting body 41 having an annular groove 41a into which the open end of the vertical cylindrical case portion 55A of the cutter case 55 is fitted.
And a disc which is attached to the rotary mounting body 41 at the starting end of the nipping and transporting of the foliage clamping and transporting device D or at a position in the vicinity of the rotating transporting body 41. A plurality of sawtooth-shaped rotary cutters 45
Second bolt 44 and nut 5 (three in this embodiment)
It is detachably attached via 3.

Each of the rotary mounting body 41 with the annular groove 41a, the key 42, the first bolt 43, the second bolt 44, and the disk-shaped saw blade-shaped rotary cutter 45 of the second cutting device J is the first type.
A rotary mounting body 41 with an annular groove 41a in the cutting device F,
The key 42, the first bolt 43, the second bolt 44, and the disk sawtooth-shaped rotary cutter 45 are configured to have the same specifications, so that the components are shared. Therefore, the drive rotation shaft 5
The rotation cutter 45 can be replaced with another rotation cutter by attaching and detaching the rotation attachment body 41 to and from the rotation attachment body 41 or attaching and detaching the rotation cutter 45 to and from the rotation attachment body 41. It can be replaced.

The attachment means K for detachably attaching the second cutting device J to the traveling body A is shown in FIGS.
As shown in FIG. 2, the support plate 6 fixed to the front end of the main cylindrical frame body 5A of the body frame 5 has a substantially L
A plurality of (two in this embodiment) bolts 6 are attached to the first mounting member 60 in the
1. The first mounting member 60 is fixedly connected via a nut 62. The first mounting member 60 has a substantially U-shaped cross section.
3 is fixedly connected via a plurality of (two in this embodiment) bolts 61 and nuts in a state in which it can be relatively slid and moved in the vertical direction, and a second cylindrical case 55B of the cutter case 55 is A mounting seat 55 </ b> C that is fixedly connected to the mounting surface of the mounting member 63 via a plurality of (two in this embodiment) bolts 61 in the front-rear direction is integrally formed.

When the onion 1 cultivated in the open field is harvested, the fixed connection between the first mounting member 60 and the support plate 6 is released, and the second cutting device J is removed from the traveling machine A. In the case of harvesting the multi-cultivated onion 1, the first attachment member 60 is fixedly connected to the support plate 6, and the foliage 1 a to be nipped and conveyed is kept at a predetermined level while the bulb 1 b connected thereto remains on the ridge R. Cut at the position.

The cutting position adjusting means L forms a pair of upper and lower first bolt holes 65 along the front-rear direction on a mounting plate portion 60A along the front-rear direction of the first mounting member 60. A pair of left and right bolt insertion second long holes 66 are formed in the mounting plate portion 60B along the left and right direction of the first mounting member 60 so that the support plate 6 in the range of the first long hole 65 is formed. Relative movement adjustment operation in the front-rear direction between the first mounting member 60 and the first mounting member 60;
The position of the second cutting device J with respect to the traveling body A can be freely adjusted vertically and back and forth by adjusting the relative movement of the mounting member 60 and the second mounting member 63 in the vertical direction. .

As shown in FIGS. 1 and 2, the excavating device H is disposed on a portion of the machine frame 5 corresponding to the outer side of the clamping and conveying start end of the foliage clamping and conveying device D as the machine advances. A pair of left and right digging tools (subsoilers) 68, which are substantially L-shaped when viewed from the front and advance in the ridge R while being located below the bulb portion 1b of the onion 1 cultivated in the horizontal direction, A drive means 70 is provided so as to swing back and forth around the core and to be detachable, and to push / pull a push / pull rod 69 pivotally attached to the upper end of the excavating tool 68 in the front / rear direction. The driving means 70 is constituted by an eccentric rotary cam mechanism attached to a counter shaft 83 described later, and converts the rotational motion of the counter shaft 83 into a reciprocating motion of the push / pull rod 69 in the front-rear direction. It is configured. Then, the excavating tool 68 is reciprocally oscillated in the front-rear direction and vibrates while moving in the ridge R, thereby cutting off the root of the bulb portion 1b and simultaneously bulging the ridge R to dig the onion 1. And the subsequent onion 1 can be easily pulled out. In the case of cutting the foliage 1a of the onion 1 cultivated in the mulch cultivation, the excavation of the excavating tool 68 is hindered by the synthetic resin film covering the ridges R. Tool 6
8 is removed from the body frame 5. Further, even in the harvesting operation in the mulch cultivation area, if the synthetic resin film covering the ridge R is peeled off after the cutting process of the foliage 1a of the onion 1 is completed, the onion 1 Before the bulb portion 1b is manually pulled out, the excavating tool 68 can be attached again to preliminarily excavate the vicinity of the bulb portion 1b of the onion 1 as the fuselage advances.

Next, a description will be given of a transmission system to each device configured as described above. As shown in FIG. 13, the PTO of the traveling transmission case 80 linked to the engine 4
Power is transmitted from the shaft 81 to a counter shaft 83 along the left and right direction via a pair of bevel gears 82, and the rear wheels are driven from a traveling output shaft 84 of the traveling mission 80 via a transmission mechanism in a left and right traveling transmission case 85. 2 to transmit power.

Power is transmitted from the counter shaft 83 to each driving sprocket wheel 8 of the weeding apparatus B via a weeding intermediate transmission shaft 86 extending in the front-rear direction and a weeding input shaft 87 extending in the left-right direction. The counter shaft 83
The power is transmitted to the drive pulley 22 on the left side of the foliage clamping and conveying device D via a transmission chain 90 and a foam wheel 89 meshing with the worm 88 of the transmission chain 9.
The power is transmitted from 0 to the drive pulley 22 on the right side of the foliage holding and conveying device D via the intermediate transmission shaft 91.

Further, power is transmitted from both the driven pulleys 23 of the foliage clamping and conveying device D to the two driving pulleys 16 of the pulling device C and the two driving pulleys 32 of the lower clamping and conveying device E via the transmission chains 92, respectively. Power is transmitted from the driven pulley 33 on the left side of the lower holding and conveying device E to the driving pulley 75 of the aligning and discharging device G.

When the onion 1 cultivated in the open-field cultivation is harvested, as shown in FIG. 5, the first cutting device F is moved from the counter shaft 83 via the first transmission mechanism P1 and the second transmission mechanism P2. Transmitting power to the input shaft 38;
When cutting only the foliage 1a of the onion 1 cultivated in the multi-cultivation, as shown in FIG. 6, remove the second transmission mechanism P2 and attach the second cutting device J to the traveling machine A. And the second cutting device J and the first transmission mechanism P
The third transmission mechanism P3 is attached between the first transmission mechanism P3 and the third transmission mechanism P3 from the counter shaft 83.
Power is transmitted to the input shaft 56 of the second cutting device J via the.

As shown in FIGS. 5, 8, and 11, the first transmission mechanism P1 includes a drive sprocket 96 mounted in a first transmission case 95 on the counter shaft 83 via a key so as to rotate integrally therewith. , The passive shaft 1 on the second transmission mechanism P2 side
02 or the driven shaft on the side of the third transmission mechanism P3 is spline-fitted from the left and right directions, and an endless transmission chain 98 bridged between the sprockets 96 and 97, and the first transmission case is provided. 95, a second transmission case 10 on the second transmission mechanism P2 side.
A bolt 99 for fastening and fixing the third transmission case 109 on the first or third transmission mechanism P3 side with a nut 100 is fixed.

As shown in FIGS. 5, 8, and 11, the second transmission mechanism P2 is provided at one end of the second transmission case 101.
A passive shaft 102, which is detachably spline-fitted to the boss portion of the driven sprocket 97 of the first transmission mechanism P1 from the left and right directions, is rotatably supported, and a passive shaft 102 is provided in the second transmission case 101. The drive sprocket 103 is attached to the input shaft 38 on the first cutting device F side via a key, and the driven sprocket 104 is attached to the input shaft 38 via a key. An endless transmission chain 105 that is bridged is provided, and a bolt 99 of a first transmission case 95 can be inserted into the second transmission case 101, and the first transmission case 95 and the second transmission case 1
A rocking range restricting plate 107 having an arc-shaped bolt insertion slot 106 for restricting the relative rocking around the horizontal axis X (the axis of the passive shaft 102) with X within a certain angle range is fixed. It is configured.

As shown in FIGS. 6 and 10, the third transmission mechanism P3 includes a third transmission case 109 and a fourth transmission case 1.
10 are connected via a cylindrical transmission case 111 so as to be relatively swingable around a horizontal axis X in the left-right direction. One end of the third transmission case 109 has a first transmission mechanism P
A passive shaft 112, which is spline-fitted to the boss portion of the first driven sprocket 97 in a detachable manner from the left and right, is rotatably supported. In the third transmission case 109, a key is connected to the passive shaft 112 via a key. Drive sprocket 113 which is mounted so as to rotate integrally with cylindrical transmission case 1
Driven sprocket 1 attached to one end of an intermediate transmission shaft 114 inserted in
15 and an endless transmission chain 116 that is bridged between the two sprockets 113 and 115, and the third transmission case 109 is capable of inserting a bolt 99 of a first transmission case 95 and the first transmission case 95. Horizontal axis of case 95 and third transmission case 109 (axis of passive shaft 112)
A swing range regulating plate 118 having an arc-shaped bolt insertion slot 117 for regulating relative swing around X within a certain angle range is fixed.

In the fourth transmission case 110,
A transmission sprocket 119 attached to the other end of the intermediate transmission shaft 114 via a key in an integrally rotated state; an input sprocket 120 attached to the input shaft 56 of the second cutting device J side via a key in an integrally rotated state; Endless transmission chain 121 which is wound around both sprockets 119 and 120
And is equipped with.

One of the traveling power transmission cases 85 that supports the left and right driving rear wheels 2 respectively extends and contracts (expands and contracts) along the left and right directions so that the tread can be adjusted according to the width of the ridge R. It is configured to be operable. Further, the driven front wheel 3 is provided with a handlebar 1 provided on a steering wheel 123.
The height can be freely adjusted by the rotation operation of 24.

[Second Embodiment] In the first embodiment described above, the traveling machine A is provided with a weeding device B, a raising device C, a foliage clamping and conveying device D, a lower clamping and conveying device E, a first cutting device F, The onion harvest provided with the aligning / discharging device G and the excavating device H is modified so that the foliage portion 1 to be nipped and conveyed to the nipping and transporting start end of the foliage and leaf nipping and transporting device D or in the vicinity thereof.
A second-purpose cutting device J that cuts a at a predetermined position while leaving the bulb portion 1b connected to it on the ridge R is configured to be able to be disposed, that is, the cultivated onion 1 is dug, and the dug is performed. A so-called open-field cultivation machine for pinching the foliage 1a of the onion 1 and pulling out the bulb 1b from the ridge R while transporting it upward and rearward, and cutting the foliage 1a during the nipping and transporting. When nipping the foliage 1a of the cultivated onion 1 and transporting it upward and rearward, the foliage 1a being nipped and transported is cut while leaving the bulb 1b connected to the ridge R, so-called multi-cultivation. Although the description has been given by taking as an example a dual-purpose machine that can be used separately for the work machine of FIG.
As shown in (1), a dedicated working machine for mulching may be configured and implemented.

In the multi-cultivation-dedicated working machine according to the second embodiment, a pair of left and right driving rear wheels 2 and one left and right sides of the ridge R run along the ridge longitudinal direction while straddling the ridge R as the cultivation area. After the foliage 1a of the onion 1 lying down in the left-right direction is scooped up from the lower side in the front-rear direction on the traveling body A provided with the driven front wheel (gauge wheel) 3 which rolls ahead of the side. The foliage 1a is pulled up rearward and upward.
Weeding device B that aligns the leaves in a posture along the front-rear direction, a raising device C that scoops up the foliage 1a of the weeded onion 1 from the left and right directions and raises it rearward and upward, and a raised foliage 1a
And a foliage clamping and conveying device D which conveys the paper upward and rearward,
A second step of cutting the foliage portion 1a to be nipped and transported at a predetermined position while leaving the bulb portion 1b connected to the ridge R at or near the nipping and transporting start end of the foliage clamping and transporting device D.
A cutting device J, a cutting position adjusting means L for adjusting the mounting position of the second cutting device J to the traveling body A up and down, and back and forth, and a cutting process of cutting chips held and conveyed by the foliage holding and conveying device D A foliage discharging means M for sending out the foliage 1a to one side in the left-right direction (the right side in the present embodiment) and dropping the foliage at the bottom between the ridges M is provided. In other words, in the multi-cultivation-dedicated working machine of the second embodiment, the lower holding and conveying device E, the first cutting device F, the aligning and discharging device G, the excavating device, which are provided in the first embodiment described above. H is removed.

The above-described various devices provided on the multi-cultivation-dedicated working machine are the same as those described in the first embodiment. And the description thereof is omitted. Also,
When the cutting process of the foliage 1a with the bulb 1b of the onion 1 remaining in the ridge R is completed using the multi-cultivation-dedicated working machine configured as described above, thereafter, the synthetic resin covering the ridge R is used. With the film made as it is, or after removing the synthetic resin film covering the ridge R manually or by using a multi-film peeler, the onion 1 remaining on the ridge R after the foliage cutting process is manually processed. Will be pulled out. At this time, if the traveling machine A is equipped with the excavating device H having the same structure as described in the first embodiment, the onion 1
If the synthetic resin film covering the ridge R is peeled off after the cutting process of the foliage part 1a is completed,
Before the bulb portion 1b of the onion 1 is manually pulled out, the digging tool 68 of the digging device H removed before the foliage cutting process.
Re-attached and the bulb 1 of the onion 1
The vicinity of b can be preliminarily excavated.

[Third Embodiment] The onion harvesting machine shown in FIGS. 15 to 18 is a first cutting device F for cutting at a predetermined position the foliage 1a located between the clamping positions of the clamping and conveying devices D and E. A second cutting device J that cuts the foliage 1a to be nipped and conveyed at a predetermined position while leaving the bulb 1b connected thereto at the ridge R at the nipping / conveying start end of the foliage clamping / conveying device D or in the vicinity thereof. Is permanently installed in the traveling body A, and a single rotary cutter 4 is provided with respect to the driving rotary shaft 39 of the first cutting device F and the driving rotary shaft 57 of the second cutting device J.
5 is freely replaceable.

As shown in FIG. 17, the first cutting device F is provided in a cutter case 37 which opens to one side (left side) and downward in the left-right direction, around a horizontal axis along the left-right direction. An input shaft 38 rotatably supported, a drive rotating shaft 39 rotatably supported around the vertical axis, and a pair of bevel gears 40 interlocking these two shafts 38, 39 are provided. A rotary mounting body 41 having an annular groove 41a into which the opening end of the vertical cylindrical case portion 37A of the cutter case 37 is fitted is integrally rotated on the rotary shaft 39 via a key 42 and a single first bolt 43. In this state, the rotary mounting body 41 is provided with a plurality of disc-shaped saw blade-shaped rotary cutters 45 facing the nipping and conveying path of the foliage clamping and conveying apparatus D and the nipping and conveying path of the lower nipping and conveying apparatus E. In this embodiment It is mounted detachably via a second bolt 44 of the three).

As shown in FIG. 18, the second cutting device J is provided in a cutter case 55 which opens to one side (left side) and downward in the left-right direction, around a horizontal axis along the left-right direction. An input shaft 56 rotatably supported, a drive rotating shaft 57 rotatably supported around an upper and lower axis, and a pair of bevel gears 58 interlocking the two shafts 56, 57 are provided. The rotation mounting body 41 provided with an annular groove 41a into which the opening end of the vertical cylindrical case portion 55A of the cutter case 55 is fitted is integrally rotated on the rotation shaft 57 via the key 42 and one first bolt 43. In this state, the rotary mounting body 41 is provided with a plurality of disk saw-tooth-shaped rotary cutters 45 disposed at or near the gripping transport start end of the foliage gripping and transporting device D. (3 in the form) It is mounted detachably via a second bolt 44.

Each of the rotary mounting body 41 with the annular groove 41a, the key 42, the first bolt 43, the second bolt 44, and the disk-shaped saw blade-shaped rotary cutter 45 of the second cutting device J is the first type.
A rotary mounting body 41 with an annular groove 41a in the cutting device F,
The key 42, the first bolt 43, the second bolt 44, and the disc-shaped saw blade-shaped rotary cutter 45 have the same specifications, and the rotary mount 41 is attached to or detached from the drive rotary shafts 39 and 57 or the rotary mount 41. Of the rotary cutter 45 to the drive rotary shaft 39 of the first cutting device F and the drive rotary shaft 57 of the second
5 is configured to be freely replaceable.

In the third embodiment, each of the input shaft 38 of the first cutting device F and the input shaft 56 of the second cutting device J is connected to the hydraulic pump 13 linked to the counter shaft 83.
Hydraulic motor 131 driven by 0 is interlockingly connected. Since other configurations are the same as those described in the first embodiment, the same components are denoted by the same reference numerals as those in the first embodiment, and description thereof will be omitted.

In the third embodiment, the hydraulic motor 131 is used to drive the input shaft 38 of the first cutting device F and the input shaft 56 of the second cutting device J. And the driving rotary shaft 39 of the first cutting device F
And the drive rotary shaft 57 of the second cutting device J may be directly driven. Further, instead of the above-described hydraulic drive means, a flexible transmission shaft-like body such as a flexible wire is used. , The input shaft 38 of the first cutting device F and the input shaft 56 of the second cutting device J may be driven.

[Fourth Embodiment] The onion harvester shown in FIG. 19 is a first cutting device F for cutting at a predetermined position the foliage 1a located between the holding positions of the two holding and conveying devices D and E.
A second cutting device J that cuts the foliage 1a to be nipped and conveyed at a predetermined position while leaving the bulb 1b connected thereto at the ridge R at the nipping / conveying start end of the foliage clamping / conveying device D or in the vicinity thereof. Is constituted by a single cutting device FJ, and the cutting device FJ is disposed between the clamping positions of both clamping and conveying devices D and E, and the cutting device FJ is disposed at or near the clamping / transfer starting end of the foliage clamping / conveying device D. The mounting position changing means Q is provided for changing the state to the above state.

The mounting position changing means Q includes a mounting frame 46 fixed between the main tubular frame 5A in the front-rear direction of the machine frame 5 and the foliage holding and conveying frame 21 side of the foliage holding and conveying device D. A pair of guide rods 47, 48 which are positioned parallel to each other at an inclination angle slightly larger than the inclination angle of the foliage clamping and conveying apparatus D, are slidably fitted to the large diameter guide rod 47. Cylindrical guide part 1
35A and a vertically movable body 135 having a substantially U-shaped sliding guide member 49 slidably engaged with the guide rod 48 on the small diameter side.
6, a first mounting member 138 fixedly connected to and detachably attached to the mounting seat 136A with a plurality of (two in this embodiment) bolts 137, and fixedly connected with a plurality of bolts. A bolt 140 with an operation knob is provided to movably fix the vertically movable body 135 within the range of the vertically long hole 51 formed in the body 46.

A substantially L-shaped second mounting member 141 in plan view is relatively slid in the front-rear direction with the support plate 6 fixed to the front end of the main cylindrical frame body 5A of the body frame 5. In a movable state, it is fixedly connected via a plurality of (two in this embodiment) bolts and nuts, and a plurality of mounting seats 136A formed on the cutter case 136 of the cutting device FJ are attached to the second mounting member 141. The third mounting member 142, which is detachably fixedly connected by two (two in this embodiment) bolts 137, is provided with a plurality of (two in this embodiment) bolts 61 in a vertically slidable manner. They are fixedly connected via nuts.

A vertically movable body 135 provided with the pair of guide rods 47 and 48 and the sliding guide member 49, a vertically long slot 51 formed in the mounting frame 46, and a bolt 140 with an operation knob are clamped together. The cutting device FJ, which is detachably provided between the holding positions of the conveying devices D and E, that is, the cutting device F detachably fixed to the first mounting member 138.
A cutting position changing means N for changing the mounting position of J in the vertical direction substantially along the inclination direction of the foliage holding and conveying device D is configured.

Further, a pair of upper and lower first bolt holes 65 along the front-rear direction is formed in the mounting plate portion 141A along the front-rear direction of the second mounting member 141, and the left and right sides of the second mounting member 141 are formed. Mounting plate 141B along the direction
A pair of left and right bolt insertion second elongated holes 66 are formed along the vertical direction, and the relative distance between the support plate 6 and the second mounting member 141 in the front-rear direction within the range of the first elongated holes 65. Movement adjustment operation and the second mounting member 1 within the range of the second elongated hole 66
By the relative movement adjustment operation of the vertical movement of the first mounting member 41 and the third mounting member 142, the cutting device F detachably provided at or near the starting end of the holding and conveying of the foliage holding and conveying device D.
J, that is, cutting position adjusting means L for adjusting the mounting position of the cutting device FJ detachably fixed to the third mounting member 142 up and down and back and forth.

Further, in the fourth embodiment, the input shaft 143 and the counter shaft 83 of the cutting device FJ are connected to each other by changing the mounting position of the single cutting device FJ by the mounting position changing means Q and the cutting position. A flexible transmission shaft-like body 144 such as a flexible wire capable of absorbing a transmission distance variation accompanying the adjustment of the cutting position by the changing means N or the cutting position adjusting means L is interlockingly connected. Since other configurations are the same as those described in the first embodiment, the same components are denoted by the same reference numerals as those in the first embodiment, and description thereof will be omitted.

[Other Embodiments] (1) In each of the above embodiments, the onion is described as an example of a cultivated crop, but the working machine of the present invention is applicable to other cultivated crops such as root crops. Can be applied. (2) In the first embodiment, the second cutting device J
Is configured so that the mounting position of the second cutting device J on the traveling body A can be adjusted either up, down, or front and rear. Is also good. (3) In the mounting position changing means Q of the fourth embodiment described above, the single cutting device FJ that constitutes the first cutting device F and the second cutting device J is clamped by detaching and attaching to the traveling body A. The configuration is such that the state is arranged between the clamping positions of the conveying devices D and E and the state where the stem and leaf clamping conveying device D is disposed at or near the starting position of the nipping conveyance. Alternatively, it may be constituted by a link mechanism or a robot arm capable of bending and swinging in a three-dimensional direction of the vertical direction and the horizontal direction.

[Brief description of the drawings]

FIG. 1 is a perspective view of an entire onion harvester showing a first embodiment of the present invention.

FIG. 2 is a side view of the entire body.

FIG. 3 is a plan view of the entire body.

FIG. 4 is a front view of the entire aircraft.

FIG. 5 is a side view of a main part showing a harvested state of a crop cultivated in the open field.

FIG. 6 is a side view of a main part showing a harvested state of a crop cultivated by mulching.

FIG. 7 is an enlarged plan view of the lower holding and conveying device E;

FIG. 8 is an enlarged perspective view of a cutting position changing means N;

FIG. 9 is an enlarged sectional view of a main part of a first cutting device (second cutting device).

FIG. 10 is an exploded perspective view showing a mounting structure and a transmission structure of a second cutting device.

FIG. 11 is an enlarged sectional view of a first transmission mechanism.

FIG. 12 is a perspective view showing an attached state of a second cutting device.

FIG. 13 is an overall transmission system diagram.

FIG. 14 is a side view of a main part of a dedicated working machine for mulching showing the second embodiment.

FIG. 15 is a side view showing a harvested state of a field-cultivated crop, which is a main part of an onion harvester according to a third embodiment of the present invention.

FIG. 16 is a side view of a main part showing a harvested state of a cultivated crop.

FIG. 17 is an enlarged sectional view of the first cutting device.

FIG. 18 is an enlarged sectional view of a second cutting device.

FIG. 19 is a perspective view of a main part showing a fourth embodiment of the present invention.

[Explanation of symbols]

 Reference Signs List A traveling body C pulling device D foliage clamping and conveying device E lower clamping and conveying device F first cutting device H excavating device J second cutting device L cutting position adjusting means M foliage discharging means N cutting position changing means P1 transmission mechanism (first 1 transmission mechanism) P2 transmission mechanism (second transmission mechanism) P3 transmission mechanism (third transmission mechanism) Q mounting position changing means X horizontal axis core 1 cultivated crop (onion) 1a foliage 1b rhizome (bulb) 39 drive rotation Axis 45 Cutter 57 Drive rotation axis

 ──────────────────────────────────────────────────の Continued on the front page (72) Inventor Hiroyuki Chiba 64 Ishizukita-cho, Sakai City, Osaka Prefecture Inside Kubota Sakai Works (72) Inventor Kazuki Fukudome 64 Ishizukita-cho, Sakai City, Osaka Prefecture Kubota Sakai Co., Ltd. F term in the factory (reference) 2B072 AA03 BA02 BA04 BA30 CA12 DA02 DA05 DA12 DA19 EA01

Claims (10)

[Claims] An apparatus for raising a foliage portion of a cultivated crop on a traveling machine, a foliage clamping and conveying device for clamping the raised foliage portion and transporting the rearward and upward direction, and a nipping and transporting start end of the foliage clamping and conveying device. A working device for cultivated crops, which is provided with a cutting device for cutting the foliage to be pinched and conveyed at a predetermined position at or near the cultivated area while leaving the rhizome connected thereto at the cultivation area. 2. A raising device for raising a foliage portion of a cultivated crop on a traveling machine body, a foliage gripping and conveying device for gripping the raised foliage portion and pulling up a rhizome portion and transporting the root portion upward and backward.
Of the foliage to be nipped and transported, it is located between a lower nipping and transporting device that grips and transports the foliage portion on the side of the rhizome side from the nipping position of the foliage and nipping transporting device, and a clamping position of the two nipping and transporting devices. What is claimed is: 1. A cultivated crop working machine provided with a first cutting device for cutting a foliage portion at a predetermined position, comprising: A working machine for cultivated crops, wherein a second cutting device for cutting at a predetermined position while keeping a rhizome connected thereto in a cultivation area can be arranged. 3. A foliage discharging means for feeding the cut foliage portion conveyed to one side in the left-right direction is provided at a clamping and conveying end portion of the foliage clamping and conveying device. Working machine for cultivated crops. 4. The cultivated crop working machine according to claim 2, further comprising a cutting position adjusting means for adjusting a mounting position of the second cutting device to at least one of up, down, front and rear. 5. The cultivated crop working machine according to claim 2, wherein the second cutting device is configured to be detachable from a traveling machine body. 6. A state in which the first cutting device and the second cutting device are constituted by a single cutting device, and the cutting device is disposed between clamping positions of both clamping and conveying devices. 5. A cultivated crop working machine according to claim 2, further comprising an attachment position changing means for changing the state of the cultivated crop to a state of being disposed at or near the starting end of the holding conveyance. 7. The first cutting device and the second cutting device are permanently installed in a traveling machine body, and a single rotating shaft is connected to a driving rotation axis of the first cutting device and a driving rotation shaft of the second cutting device. 4. The cutter according to claim 2, wherein the cutter is replaceable.
Or the working machine for cultivated crops according to 4. 8. A cutting position changing means for changing a mounting position of the first cutting device along a vertical direction is provided, and a part of a power transmission system to the first cutting device is provided.
In order to absorb a change in transmission distance due to a change in the mounting position of the first cutting device, the first cutting device is constituted by a plurality of transmission mechanisms that are flexibly connected around a horizontal axis. The cultivated crop working machine according to claim 5, wherein a transmission mechanism on the first cutting device side and a transmission mechanism operatively connected to the second cutting device are configured to be interchangeable. 9. The lower holding / conveying device is in a gently inclined posture or a horizontal posture in which a distance between clamping positions with the stem / leaf holding / conveying device becomes larger toward the end of conveyance, and is conveyed by the stem / leaf holding / conveying device. The cultivated crop working machine according to any one of claims 2 to 8, wherein the cultivated crop working machine according to any one of claims 2 to 8, wherein the clamping force is configured to allow relative movement in the vertical direction with the stem and leaves of the crop until the rhizome of the crop comes into contact with the crop. . 10. The cultivated crop according to any one of claims 2 to 9, wherein the traveling machine is provided with a digging device for digging a vicinity of a rhizome of the cultivated crop as the machine advances. Work machine.