JP3450740B2 - Working machine for cultivated crops - Google Patents

Description

Detailed Description of the Invention

[0001]

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

[0002]

BACKGROUND ART When an onion, which is an example of a cultivated crop, is harvested , generally, a raising device for raising the foliage of the onion,
A foliage holding and conveying device that holds the raised foliage and pulls out the rhizome bulb (root for root vegetables) and conveys it upward and backward, and between the foliage that is held and conveyed, the foliage holding and conveying device holds the foliage. A lower holding and conveying device that holds the stem and leaves on the bulb portion side of the position and conveys them backward, and a cutting device that cuts the leaves and leaves located between the holding positions of the both holding and conveying devices at a predetermined position on the traveling machine body. The onion harvesting machine that is deployed is used. Then, while running this onion harvester along the ridge, the foliage of the onions lying down and overlapping is raised by the raising device, and the raised foliage is held by the foliage holding and conveying device to the upper rear side. By carrying, while pulling out the bulb portion of the onion from the ridges, among the foliage portion to be held and conveyed, while holding and conveying the foliage portion on the bulb portion side of the holding position of the foliage holding and conveying device with the lower holding and conveying device, The cutting device cuts a predetermined position of the foliage portion held by both of the holding and conveying devices. The cut foliage portion, which becomes the cutting waste after the cutting process, is discharged from the transport end portion of the foliage-holding and conveying device, and the bulb portion is released from the transport end portion of the lower-holding and conveying device.

[0003]

However, in mulching cultivation in which ridges are covered with a synthetic resin film and cultivated,
The bulb part of the onion is easily caught on the periphery of the hole formed in the film, and since the film is lifted through the cultivation soil when pulling out the bulb part, the pulling resistance of the onion increases, and the onion harvester as described above is used. It could not be used. In addition, it is conceivable to peel off the synthetic resin film, which is an obstacle to such mechanization, in advance, but the long foliage parts of the onion lie down and overlap with each other. Since a plurality of onions are cultivated in a striped manner, the peeling resistance of the film becomes very large, and the peeling operation of the film itself requires a lot of labor and time. Therefore, at the time of harvesting onions cultivated by multi-cultivation, the manual work is currently carried out by holding the hole periphery of the film with one hand and holding the onion foliage with the other hand and pulling out. Moreover, since a cutting step of cutting the foliage of the harvested onion into a predetermined size suitable for post-treatment such as binding treatment for drying is added, much labor and labor are required for the harvesting work.

The present invention has been made in view of the above-mentioned circumstances, and the first main problem is to facilitate the peeling work of the film at the time of harvesting the crop cultivated by the multi-cultivation and the harvesting. The second point is to provide a useful work machine for cultivated crops that can improve work efficiency and save labor.
The main problem of the method is to make it easy to peel off the film at the time of harvesting the crops cultivated by multi-cultivation, to streamline the harvesting work, and to save labor by economically reforming the existing working machine for cultivated crops. This is an advantage.

[0005]

According to a first aspect of the present invention, there is provided a working machine for cultivated crops, characterized in that a traveling machine body is provided with a raising device for raising a foliage portion of a cultivated crop and a raised foliage portion. The foliage holding and conveying device that pulls out the rhizome and pulls it up and conveys it backward, and the lower part that holds the foliage part closer to the rhizome than the holding position of the foliage holding and conveying device. A working machine for cultivated crops in which a holding and conveying device and a first cutting device that cuts a foliage portion located between the holding positions of the both holding and conveying devices at a predetermined position are provided. At the point where the carrying and carrying start end part or its vicinity is configured so that a second cutting device for cutting the carrying and carrying foliage part at a predetermined position while leaving the root and root part continuing to it in the predetermined position is detachable from the traveling machine body. is there. [Operation] According to the above characteristic configuration, at the time of harvesting a field-cultivated crop, the traveling machine body is run along the cultivated area such as a ridge,
The stems and leaves of the onions that have been laid down and overlapped are raised by the raising device, and the raised stems and leaves are held by the stem-and-leave-holding and conveying device and conveyed backward and upward, thereby pulling out the rhizomes of the cultivated crop from the ridges. Of the foliage parts to be held and conveyed, the foliage part closer to the bulb part than the holding position of the foliage holding and conveying device is held and conveyed by the lower holding and conveying device, and the foliage part held by both of these holding and conveying devices is predetermined. The position can be cut by the first cutting device. The cut foliage portion, which is the cutting waste after the cutting process, is discharged from the transport end portion of the foliage-holding and conveying device, and the root stem portion is discharged from the transport end portion of the lower-holding and conveying device. Further, when harvesting multi-cultivated crops, at the pinching and conveying start end portion of the foliage-plucking and conveying device or a position in the vicinity thereof, the foliage part to be pinched and conveyed and a predetermined position while leaving the rhizomes connected to it in the cultivation area. A second cutting device for cutting with is provided. Then, while running the traveling machine along the cultivated land such as ridges, the foliage portion of the cultivated crops that have been laid down and overlapped is raised by the raising device, and the foliage portion thus raised is held by the foliage-holding and conveying device. Transport it backwards and upwards. At this time, a second cutting device disposed at or near the holding and conveying start end portion cuts the foliage portion in the standing posture to be held and conveyed at a predetermined position while leaving the rhizome continuing to it in the cultivation area. You can The cut foliage part which becomes the cutting waste after the cutting process is discharged from the conveying end part of the foliage holding and conveying device. Therefore, when peeling the synthetic resin film covering the cultivated area, the resistance caused by the foliage of the cultivated crop can be significantly reduced, and the foliage of the harvested crop is aligned to a predetermined size. It is possible to reduce the cutting process for cutting. Also, above
According to the characteristic configuration, the first cutting device is equipped on the traveling body.
Without removing, attach and detach only the second cutting device to the traveling machine body.
By doing so, a work machine and a machine compatible with harvesting in open field cultivation
Selectively display working machines that support harvesting in ruti cultivation
You can [Effect] Therefore, since the raising device and the foliage-holding and conveying device equipped in the existing work machine for cultivated crops can be used as they are, the second cutting is performed at the holding-conveying start end portion of the foliage-holding and conveying device or a position in the vicinity thereof. To make it easy and economical to modify the equipment so that it can be detachably attached to the traveling machine, and to facilitate the peeling of the film during harvesting in multi-cultivation, streamlining the harvesting work, and saving labor. You can In addition, the second cutting device is detachably attached to the traveling machine body.
Since it has been prepared, it is equipped on the existing work machine for cultivated crops.
There is no need to change the mounting structure of the first cutting device.
Therefore, it is advantageous to modify work equipment in terms of manufacturing and manufacturing costs.
Can be given.

[0006] According to a second aspect of the present invention, the working machine for cultivated crops is characterized in that the foliage for feeding the cut foliage portion which has been grabbed and conveyed to one side in the left-right direction at the grabbing and conveying end portion of the foliage-carrying and conveying apparatus. The point is that discharge means is provided. [Operation] According to the above-mentioned characteristic configuration, since the cutting and leaf portion held and conveyed backward and upward by the forgery and leaf holding and conveying device is sent out to one side in the left and right direction by the forage and leaf discharging means to be discharged, it becomes a cutting waste. It is possible to prevent the cut foliage part from being released onto the root part remaining in the cultivation area or onto the foliage part of the cultivated crop of the adjacent strip. In particular, when the cut foliage is configured to be discharged to the bottom of the ridge, the unnecessary cut foliage on the film covering the ridge can be significantly reduced. [Effect] Therefore, it is possible to prevent the cutting action of the pulling device and the holding and transporting action of the foliage-holding and transporting device from being disturbed by the released cutting foliage portion, and at the time of harvesting a crop cultivated by multi-cultivation. In addition, it is possible to reduce the time and labor required for removing the unnecessary cut foliage portion on the film and facilitate the peeling work of the film.

A characteristic configuration of the working machine for cultivated crops according to claim 3 of the present invention is that a cutting position adjusting means for adjusting the mounting position of the second cutting device to at least one of up and down and front and back is provided. . [Operation] According to the above characteristic configuration, since the foliage portion raised by the pulling device is held and conveyed backward and upward by the foliage holding and conveying device, the attachment position of the second cutting device is moved up and down and forward and backward by the cutting position adjusting means. By adjusting to at least one,
The length of the foliage part on the rhizome side remaining in the cultivation area can be adjusted to an arbitrary length. [Effect] Therefore, the length of the harvested root-and-root side stems and leaves can be made equal to a desired length suitable for post-treatment such as binding treatment for drying.

According to a fourth aspect of the present invention, there is provided a working machine for cultivated crops characterized in that the first cutting device and the second cutting device are constituted by a single cutting device, and the cutting device is held between both sides. There is provided a mounting position changing means for changing between a state of being arranged between the holding positions of the conveying device and a state of being arranged at the holding and conveying start end portion of the foliage-holding and conveying device or a position in the vicinity thereof. [Operation] According to the above characteristic configuration, a single cutting device that also serves as the first cutting device and the second cutting device is arranged between the holding positions of the two holding and conveying devices by the attachment position changing means. By changing to a state of deploying at the holding and conveying start end of the foliage holding and conveying device or a position in the vicinity thereof, a working machine compatible with harvesting in open field cultivation and a working machine compatible with harvesting in multi-cultivation can be selectively selected. Can be revealed. [Effect] Therefore, not only the first cutting device and the second cutting device can be configured to be combined with one cutting device, but also only one transmission system is required for the cutting device. The cost can be reduced.

According to a fifth aspect of the present invention, there is provided a characteristic configuration of a working machine for cultivated crops, wherein the first cutting device and the second cutting device are permanently installed in a traveling machine body, and a drive rotary shaft of the first cutting device. Also, a single cutter is replaceable with respect to the drive rotary shaft of the second cutting device. [Operation] According to the above-described characteristic configuration, the first unit that is permanently installed in the traveling vehicle body
With a simple operation of replacing a single cutter with respect to the driving rotary shaft of the cutting device and the driving rotary shaft of the second cutting device, the working machine corresponding to the harvest in the open field cultivation and the harvest in the multi cultivation are supported. The work machine can be selectively exposed. [Effect] Therefore, it is possible to efficiently and easily perform the changing work between the outdoor cultivation specification and the multi-cultivation specification of the working machine with a small amount of labor.

According to a sixth aspect of the working machine for cultivated crops of the present invention, a cutting position changing means for changing the mounting position of the first cutting device along the vertical direction is provided, and the first cutting device is also provided. Part of the power transmission system to the cutting device,
In order to absorb the variation in the transmission distance due to the change in the mounting position of the first cutting device, the transmission device is composed of a plurality of transmission mechanisms that are flexibly connected around the horizontal axis, and is different from the transmission mechanism on the driving part side in the other. The transmission mechanism on the side of the first cutting device and the transmission mechanism transmission-coupled to the second cutting device are configured to be replaceable. [Operation] According to the above characteristic configuration, the cutting position changing means changes the mounting position of the first cutting device in the vertical direction, thereby cutting the foliage part held by the two holding and conveying devices. That is, it is possible to adjust the length of the root-and-leaf portion on the side of the rhizome that is held and conveyed by the lower holding and conveying device to an arbitrary length. Moreover, among the plurality of transmission mechanisms flexibly connected around the horizontal axis in order to absorb the variation of the transmission distance due to the change of the mounting position of the first cutting device, the transmission mechanism on the driving portion side is By replacing the transmission mechanism on the side of the first cutting device with the transmission mechanism connected to the second cutting device, a working machine corresponding to the harvest of the crop cultivated by the open field cultivation and the crop cultivated by the multi-cultivation It is possible to selectively expose the working machine corresponding to the harvest of. [Effect] Therefore, not only can the length of the foliage part on the rhizome side to be harvested be adjusted to a desired length suitable for post-treatment such as binding treatment for drying, but also to the first cutting device. The power transmission system of the second cutting device can be manufactured advantageously in terms of manufacturing cost by utilizing a part of the power transmission system of.

[0011] According to a seventh aspect of the present invention, there is provided a characteristic construction of the working machine for cultivated crops, wherein the lower holding and conveying device has a gentle inclination posture or a horizontal posture in which the distance between the holding positions of the foliage holding and conveying device is larger toward the end of the conveyance. And the holding force is configured to allow relative movement in the vertical direction with respect to the foliage portion of the crop until the rhizome portion of the crop held and conveyed by the foliage holding and conveying device abuts. . [Operation] According to the above-mentioned characteristic configuration, the gripping positions of the foliage portions at the transport start end portion of the foliage-holding transport device and the transport start end portion of the lower-sandwich transport device are conditions such as the degree of growth of the crop and the foliage-raising state. Even if it fluctuates by, until the rhizome of the crop held and conveyed by the foliage holding and conveying device contacts the lower holding and conveying device,
The foliage part being held by the lower holding and conveying device is moved upward while sliding while receiving the holding and conveying force of the foliage holding and conveying device, and as a result, the root part of the crop is in contact with the lower holding and conveying device. The foliage portion located between the holding positions of both the holding and conveying devices is in a substantially stretched state. [Effect] Therefore, the position of the rhizome portion of the crop is regulated to a fixed position by abutting with the lower holding and conveying device, and the foliage portion located between the holding positions of both the holding and conveying devices is in a substantially stretched state. By cutting the foliage portion with the first cutting device in this state, the length of the foliage portion on the side of the rhizome to be harvested is almost the desired length suitable for post-treatment such as binding treatment for drying. Can be arranged in a certain amount.

A feature of the working machine for cultivated crops according to claim 8 of the present invention is that the traveling machine body is equipped with a digging device for digging the vicinity of the roots of the cultivated crops as the machine body progresses. is there. [Operation] According to the above characteristic configuration, as the traveling vehicle progresses, the vicinity of the rhizome portion of the cultivated crop is dug up by the dug device, and thereby the loosening action and the root cutting action of the cultivation area around the rhizome portion are achieved. By the synergy, the operation force required for pulling out the rhizome of the cultivated crop can be significantly reduced. [Effect] Therefore, it is possible to reliably and easily pull out the rhizome of the cultivated crop with a small operation force.

[0013]

BEST MODE FOR CARRYING OUT THE INVENTION [First Embodiment] FIGS. 1 to 11 show a walk-type onion harvester, which is an example of a working machine for cultivated crops. Lying in the left-right direction on a traveling body A having a pair of left and right driving rear wheels 2 traveling along the longitudinal direction and a driven front wheel (gauge wheel) 3 rolling ahead of the left and right sides of the ridge R. And a weeding device B for scooping up the foliage portion 1a of the onion 1 which has been laid down in the front-back direction along the front-rear direction, and then pulling it up rearward and upward so that the foliage portion 1a is aligned in the posture along the front-rear direction. A pulling device C that scoops up the foliage portion 1a of the onion 1 from the left and right direction and raises it backward and upward, and a foliage that holds the raised foliage portion 1a and pulls out the bulb portion 1b which is a rhizome portion and conveys it backward and upward. Holding carrier D
Of the foliage portion 1a being held and conveyed, a lower holding and conveying device E for holding the foliage portion on the side of the root and stem portion 1b with respect to the holding position of the foliage holding and conveying device D and horizontally conveying to the rear, and both the holding and conveying devices. The foliage portion 1a located between the holding positions of D and E
First cutting device F for cutting at a predetermined position, and the bulb portion 1 sent out from the conveying end portion of the lower holding and conveying device E.
An aligning and discharging device G that aligns and discharges b on the ridge R, and a digging device H that digs in the vicinity of the bulb portion 1b of the onion 1 as the machine body advances are provided.

Further, at the beginning and end of the carrying and holding device of the forcing and carrying device D, at the time of harvesting during multi-cultivation, the foliage part 1a to be held and carried is left in the ridge R as the bulb part 1b connected to it. A mounting means for disposing the 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 body A, and cutting position adjusting means L for adjusting the attachment position of the second cutting device J to the traveling machine body A up and down and front and back are provided. The foliage holding and conveying device D
At the terminal end of the holding and transporting means, the foliage discharging means M for sending out the cutting foliage portion 1a, which is the cutting waste that has been held and transported, to one side in the left-right direction (the right side in this embodiment) and drops it on the bottom portion between the ridges M. Is provided.

As shown in FIGS. 1 to 6, the weeding device B has a mounting plate 14 fixed to the front end side of the machine body frame 5 constituting the traveling machine body A with an interval corresponding to the crop cultivation row. The three grass transmission cases 7 arranged side by side are fixed in a backward tilted position which is located rearward toward the upper side, and each of the grass transmission cases 7 has a shaft rotatably about 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 positions in the rotating direction of the endless chain 10 along a chain rotating plane. Is equipped with a weeding claw 11 and the like that is freely pivoted up and down, and at the lower end of each of the weeding transmission cases 7, in front of the scooping up weeding action by the weeding claw 11, in the left-right direction. Stem and leaf part 1 of onion 1 lying on its side And it is configured to be secured minute grass divider 12 frying scoop supplementarily.

Then, the foliage portion 1a of the onion 1, which is scooped up by the sward divider 12 in an auxiliary manner, is struck from below by the swarding claws 11 which are erected at the lower ends of the respective sward transmission cases 7 to the outside of the case. After scooping up along the front-rear direction, the stems and leaves 1a of the onion 1 are aligned in the front-rear direction by lifting them backward and upward by the weeding claws 11 that move to the upper end while standing upright. At the same time as ensuring the triggering action by C, the foliage portion 1a of the onion 1 to be harvested and the foliage portion 1a of the onion 1 to be harvested in the next step are separated. Further, among the grass dividers 12, the grass divider 12 that moves along the slope of the ridge R has a grass cover that extends outward in the left-right direction while covering the front end of the driven front wheel 3 from the entire surface. 13 is attached.

As shown in FIGS. 1 to 6, the pulling device C forms a single pulling path for the foliage portion 1a of the two onions 1 at the front end portion of the machine body frame 5 between the facing surfaces. The pair of left and right pulling frame bodies 15 are fixed in a rearward tilted posture with the same tilt angle as that of the grass transmission case 7, and each pulling frame body 15 has
Upper and lower pulleys 16 and 17 rotatably supported around an axis perpendicular to the inclined surface, and both pulleys 1
Endless belt (endless rotating body) 18 wound around 6, 17
And each of the endless belts 18 has a plurality of pull-up claws 19 having a receding angle with respect to the pull-up direction.
Is formed so as to project in an intersecting posture in which the tip portions of one of the left and right raising claws 19 are inserted between the tip portions of the other adjacent raising claws 19.

Then, as the drive pulley 16 located above the raising frame 15 is driven and rotated, the left and right raising claws 19 are formed.
By circulating from the front lower side to the rear upper side along the raising path, the stems and leaves 1a of the two onions 1 sown by the weeding device B are scooped up from the left and right directions to be raised rearward and upward. The foliage portion 1a of the above is erected in a substantially straight 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 device D forms a holding-and-conveying route on the machine body frame 5 for the two foliage portions 1a caused by the pulling device C between the facing surfaces. A pair of left and right stalk-and-leaves-carrying frame members 21 are fixed in a rearwardly tilted posture in which the tilt angle is smaller than that of the pull-out frame member 15. The upper and lower pulleys 22 and 23 are rotatably supported by, and the endless holding / conveying belt (endless holding / conveying rotary member) 24 wound around the pulleys 22 and 23 is provided.

The holding and conveying start ends of the two endless holding and conveying belts 24 are disposed close to the rear side of the raising device C, which is slightly offset from the raising and starting portion, and the both endless holding and conveying belts 24 are provided. The gripping 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 that is gripped and conveyed by the both endless holding and conveying belts 24 is moved downward to the lower holding and conveying device E. The contact force is set to allow the relative movement of the onion 1 with respect to the foliage portion 1a in the vertical direction by the slipping and conveying after the contact.

Then, the endless holding and conveying belts 24 are circulated along with the drive rotation of the drive pulley 22 located above the foliage-holding and conveying frame 21, so that the onion raised by the raising device C in the upright posture. While holding the first foliage portion 1a and pulling out the bulb portion 1b from the ridge R, the bulb portion 1b is conveyed backward and upward. Further, since the pull-up end portion of the pulling device C is disposed above the intermediate position of the sandwiching / conveying path, even if the foliage portion 1a is long, the foliage portion 1 during the sandwiching / conveying operation.
The fall of a can be suppressed.

The foliage discharging means M is shown in FIGS.
As shown in FIG. 6, the drive shaft 26 of the drive pulley 22 located on the discharge side (the right side in the present embodiment) of the cut foliage portion 1a of the left and right drive pulleys 22 of the foliage-holding and conveying device D.
In addition, a star wheel 27, which is an example of a foliage discharge rotating body, is fixed, and the cut foliage portion 1a locked and conveyed by both the star wheels 27 is transferred and guided along a discharge transfer path having a substantially square shape in plan view. The discharge guide rod 28 and the cut foliage portion 1a discharged from the discharge transfer path are dropped and discharged onto the bottom surface Ra between the adjacent ridges R, that is, the bottom surface Ra between the 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 and conveying device E forms a holding and conveying route on the machine body frame 5 for the two foliage portions 1a caused by the pulling device C between the opposing surfaces. The pair of left and right lower holding and conveying frames 31 are fixed in a horizontal posture or a substantially horizontal posture in which the distance between upper and lower holding positions of the foliage holding and conveying device D becomes larger toward the end of the conveyance, and each lower holding and conveying frame body is fixed. The reference numeral 31 designates a drive pulley 3 which is located at the start end of the sandwiching conveyance path and is rotatable around the longitudinal axis.
2. A driven pulley 33 that is rotatable around a longitudinal axis located at the terminal end of the holding and conveying path, and an endless holding and conveying belt (endless holding and conveying rotating body) 3 wound around both pulleys 32, 33.
4. Strained state in which the foliage portion 1a can be held and conveyed, and the foliage portion 1a
Is equipped with a tension pulley 35 and the like, which can be switched to a relaxed state in which the holding is released. Then, when harvesting the onion 1 cultivated in the open field, the tension pulley 3 is operated and set to a tension state capable of being held and conveyed, and the stem and leaf portion 1a to be held and conveyed is left in the ridge R with the bulb portion 1b connected thereto. At the time of harvesting in multi-cultivation in which cutting is performed at a predetermined position as it is, the tension pulley 3 is operated and set to a relaxed state where the tension pulley 3 is released.

The holding and conveying start end portions of the both endless holding and conveying belts 34 are disposed close to a position slightly deviated from the holding and conveying start end portion on the lower surface side of the foliage holding and conveying device D, and the both endless holding and holding movements are performed. The carrying force of the carrying belt 34 is such that the onion 1 can be carried while being held in a suspended state, and
Until the bulb portion 1b of the onion 1 held and conveyed by the foliage holding and conveying device D comes into contact with the lower holding and conveying device E from below, slipping (slip) with the foliage portion 1a of the onion 1 in the vertical direction.
The holding force is configured to allow relative movement by the. Therefore, the gripping position of the foliage portion 1a at the transport start end of the foliage-holding transport device D and the transport start end of the lower-sandwich transport device E is
Even if the onion 1 fluctuates depending on conditions such as the growth degree of the onion 1 and the raised state of the foliage portion 1a, the bulb portion 1b of the onion 1 held and conveyed by the foliage holding and conveying device D contacts the lower holding and conveying device E. The foliage portion 1a held by the lower holding and conveying device E relatively moves upward while sliding under the holding and conveying force of the foliage holding and conveying device D, and as a result, the bulb portion 1b of the onion 1 is held by the lower holding and conveying device. In the state where it is in contact with E, the foliage portions located between the holding positions of both the holding and conveying devices D and E are in a substantially stretched state. Further, after the bulb portion 1b of the onion 1 comes into contact with the lower holding and conveying device E from below, the holding portion of the foliage-holding and conveying device D and the foliage portion 1a move in relative sliding contact while sliding in the vertical direction, It is possible to maintain the stretched state of the foliage portion 1a while avoiding breakage or the like of 1a. Therefore, the position of the bulb portion 1b of the onion 1 is restricted to a fixed position by abutting with the lower holding and conveying device E, and the foliage portion located between the holding positions of both the holding and conveying devices D and E is in a substantially stretched state. Therefore, by cutting the foliage portion 1a with the first cutting device F in this state, the length of the foliage portion 1a on the side of the bulb portion 1b to be harvested is suitable for post-treatment such as binding treatment for drying. Moreover, it is possible to make the length substantially constant with a desired length.

The aligned discharge device G is shown in FIGS. 3, 5, and 6.
As shown in FIG. 2, both endless holding and conveying belts 3 are provided on the holding and conveying end side of the lower holding and conveying frame body 31 of the lower holding and conveying device E.
4, the upper and lower first discharge guide rods 72 and second discharge guide rods 74 for changing and guiding the foliage portion 1a on the side of the bulb portion 1b, which is held and conveyed by 4, and both endless holding and conveying belts 34 An endless alignment belt (an endless transfer rotating body) 73 with a protrusion 73a for transferring the bulb part 1b sent out from the transport end part of the above is arranged to cut the foliage part 1a of a length capable of being bound. The bulb portion 1b is ejected while being aligned in a posture along the left-right direction. In addition, an upper drive pulley 75 and a lower driven pulley 76 around which the endless alignment belt 73 is wound.
Is a support frame body 77 supported on the lower holding and conveying frame body 31 side.
Is rotatably supported around a horizontal axis in the left-right direction.

As shown in FIGS. 8 and 9, the first cutting device F has a horizontal axis extending in the left-right direction inside a cutter case 37 that opens to one side (left side) in the left-right direction and downward. An input shaft 38 rotatably supported around the core, a drive rotary shaft 39 rotatably supported around the vertical shaft core, and a pair of bevel gears 40 interlocking these shafts 38, 39 are provided. A rotary mounting body 41 having an annular groove 41a into which the open end of the vertically-oriented cylindrical case portion 37A of the cutter case 37 fits is attached to the drive rotary shaft 39 via a key 42 and one first bolt 43. And is detachably attached in an integrally rotating state, and is attached to the rotary attachment body 41 at the nipping / conveying path and the lower nipping / conveying device E of the foliage-holding / conveying device D.
The disk sawtooth-shaped rotary cutter 45 facing the nip conveyance path of
It is detachably attached via a plurality of (three in this embodiment) second bolts 44 and nuts 53. Therefore, the rotary cutter 45 can be replaced with another rotary cutter by attaching / detaching the rotary mount 41 to / from the drive rotary shaft 39 or by attaching / detaching the rotary cutter 45 to / from the rotary mount 41.

Further, as shown in FIGS. 5, 6, 8 and 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. The changing means N is provided, and a part of the power transmission system to the input shaft 38 of the first cutting device F is provided with the first cutting device F.
In order to absorb the variation in the transmission distance due to the change in the mounting position of the cutting device F, the transmission unit is composed of a plurality of (two in the present embodiment) transmission mechanisms P1 and P2 that are flexibly connected around the horizontal axis X, and a driving part. Is the first transmission mechanism P1 on the engine 4 side.
On the other hand, the second transmission mechanism P2 on the side of the other first cutting device F
And the third transmission mechanism P3, which is transmission-coupled to the input shaft 56 of the second cutting device J, are configured to be replaceable.

The cutting position changing means N is shown in FIGS.
As shown in FIG. 8, the stem-and-leaf-holding unit is fixed to the mounting frame body 46 that is fixed across the main tubular frame body 5A in the front-rear direction of the machine body frame 5 and the foliage-and-grasping-and-conveying frame unit 21 side of the foliage-and-grabbing and carrying unit D. A pair of guide rods 47 and 48, which are parallel to each other at an inclination angle slightly larger than the inclination angle of the conveying device D, are installed, and the sideways cylindrical case 37B of the cutter case 37 has a guide rod 47 on the large diameter side. And a guide rod 48 on the small diameter side, in which the tubular guide portion 37C is slidably fitted to the outside
A mounting seat 3 for tightening and fixing a substantially U-shaped sliding guide member 49 slidably engaged with respect to
7D and the bolt 5 with the operation knob 52a inserted from the outside into the long hole 51 formed in the attachment frame 46
2 and a fixed connecting piece 37E having a female screw hole (not shown) that can be screwed into the second connecting member 2 is formed.

The mounting position of the first cutting device F can be freely changed within the range of the long 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. As a result, the first cutting device F can be fixed to the attachment frame body 46 on the machine body frame 5 side.

As shown in FIG. 6 and FIG. 10, the second cutting device J has a horizontal axis extending in the left-right direction inside a cutter case 55 which opens to one side (left side) in the left-right direction and downward. An input shaft 56 rotatably supported around the core, a drive rotary shaft 57 rotatably supported around the vertical shaft core, and a pair of bevel gears 58 interlocking these shafts 56, 57 are provided. The drive rotation shaft 57 is provided with a rotary mount 41 having an annular groove 41a into which the open end of the vertical cylindrical case portion 55A of the cutter case 55 fits, and a key 42.
And a disc that is detachably mounted in an integrally rotating state via one of the first bolts 43, and is arranged on the rotary mounting body 41 at the pinching / conveying start end of the foliage / pinching / conveying device D or in the vicinity thereof. A plurality of serrated rotary cutters 45
(Three in this embodiment) Second bolt 44 / nut 5
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 sawtooth-shaped rotary cutter 45 of the second cutting device J has the above-mentioned first structure.
The rotary mounting body 41 with the 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, and parts are commonly used. Therefore, the drive rotary shaft 5
Not only can the rotary cutter 45 be replaced with another rotary cutter by attaching / detaching the rotary mounting member 41 to / from the rotary mounting member 41 or attaching / detaching the rotary cutter 45 to / from the rotary mounting member 41, It can be replaced.

The mounting means K for detachably mounting the second cutting device J on the traveling machine body A is shown in FIGS.
As shown in FIG. 2, the support plate 6 fixed to the front end portion of the main tubular frame body 5A of the machine body frame 5 has a substantially L shape in plan view.
A plurality of (two in the present embodiment) bolts 6 are provided in a state in which the first mounting member 60 having a V shape can be slidably moved in the front-rear direction.
1 and nuts 62 are fixedly connected to each other, and the first mounting member 60 has a second mounting member 6 having a substantially U-shaped cross section.
3 is fixedly connected via a plurality of (two in the present embodiment) bolts 61 and nuts in a state capable of relative sliding contact in the vertical direction, and the horizontal cylindrical case 55B of the cutter case 55 has a second A mounting seat 55C is integrally formed with the mounting surface of the mounting member 63 via a plurality of (two in the present embodiment) bolts 61 in the front-rear direction.

When the onion 1 cultivated in the open field is to be harvested, the fixed connection between the first mounting member 60 and the support plate 6 is released, the second cutting device J is removed from the traveling machine body A, and When harvesting the multi-cultivated onion 1, the first attachment member 60 is fixedly connected to the support plate 6, and the foliage portion 1a that is held and conveyed is left in the ridge R with the bulb portion 1b continuing to it. Cut at the position.

The cutting position adjusting means L forms a pair of upper and lower first bolt holes 65 for bolt insertion along the front-rear direction on the mounting plate portion 60A of the first mounting member 60 along the front-rear direction. A pair of right and left second bolt insertion holes 66 extending in the vertical direction is formed in the attachment plate portion 60B of the first attachment member 60 along the left and right direction, and the support plate 6 within the range of the first elongated hole 65 is formed. And a relative movement adjustment operation of the first mounting member 60 in the front-rear direction, and a first movement within the range of the second elongated hole 66.
By the relative movement adjustment operation of the attachment member 60 and the second attachment member 63 in the vertical direction, the attachment position of the second cutting device J to the traveling machine body A can be freely adjusted up and down and front and back. .

As shown in FIG. 1 and FIG. 2, the excavating device H is attached to the portion of the machine frame 5 corresponding to the outer side of the holding and conveying start end of the foliage-carrying and conveying device D as the machine progresses. A pair of right and left excavators (subsoilers) 68 that are substantially L-shaped in a front view and that advance in the ridge R while being positioned below the bulb portion 1b of the onion 1 that is cultivated as a horizontal axis in the horizontal direction. A drive means 70 is provided for swinging back and forth around the core and being detachably attached, and for driving the push / pull rod 69 pivotally attached to the upper end of the excavator 68 in the forward / backward direction. The driving means 70 is composed of an eccentric rotation cam mechanism attached to a counter shaft 83, which will be described later, and converts the rotational movement of the counter shaft 83 into a reciprocating movement of the push-pull rod 69 in the front-rear direction. It is configured. Then, the excavator 68 is moved back and forth in the front-rear direction to move through the ridge R while being vibrated, thereby cutting off the root of the bulb portion 1b and at the same time softening the ridge R to dig the onion 1. After that, the onion 1 can be easily pulled out. In addition, when cutting the foliage part 1a of the onion 1 cultivated by the multi-cultivation, the excavation of the excavation tool 68 is hindered by the synthetic resin film covering the ridges R, so that the excavation is performed. Tool 6
8 is removed from the body frame 5. Even in the harvesting work in the multi-cultivation area, if the synthetic resin film covering the ridges R has been peeled off after the cutting process of the foliage portion 1a of the onion 1 is completed, the onion 1 Before manually pulling out the bulb portion 1b, the excavator 68 can be reattached to preliminarily excavate the vicinity of the bulb portion 1b of the onion 1 as the machine body advances.

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

In addition to transmitting power from the counter shaft 83 to each drive sprocket wheel 8 of the weeding device B through a grass intermediate transmission shaft 86 extending in the front-rear direction and a grass 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 holding and conveying device D via the foam wheel 89 and the transmission chain 90 that mesh with the worm 88 of
Power is transmitted from 0 to the drive pulley 22 on the right side of the foliage-carrying and conveying device D via the intermediate transmission shaft 91.

Further, power is transmitted from both driven pulleys 23 of the foliage-carrying and conveying device D to both drive pulleys 16 of the raising device C and both drive pulleys 32 of the lower holding and conveying device E through 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 drive pulley 75 of the aligning and ejecting device G.

When the onion 1 cultivated by open field cultivation is harvested, as shown in FIG. 5, the first cutting device F of the first cutting device F is moved from the counter shaft 83 via the first transmission mechanism P1 and the second transmission mechanism P2. Transmits power to the input shaft 38, and
When cutting only the foliage portion 1a of the onion 1 cultivated by multi-cultivation, the second transmission mechanism P2 is removed and the second cutting device J is attached to the traveling machine body A, as shown in FIG. Together with the second cutting device J and the first transmission mechanism P
The third transmission mechanism P3 is attached between the first transmission mechanism P1 and the third transmission mechanism P3.
The power is transmitted to the input shaft 56 of the second cutting device J via.

As shown in FIGS. 5, 8 and 11, the first transmission mechanism P1 includes a drive sprocket 96 mounted in the first transmission case 95 on the counter shaft 83 through a key in an integrally rotatable state. , Passive shaft 1 on the side of the second transmission mechanism P2
02 or a driven shaft on the side of the third transmission mechanism P3 is fitted with a driven sprocket 97 that is spline-fitted from the left-right direction, and an endless transmission chain 98 that is stretched over both sprockets 96 and 97, and the first transmission case is also provided. The second transmission case 10 on the second transmission mechanism P2 side is provided on the outer side surface of 95.
A bolt 99 for fastening and fixing the third transmission case 109 on the side of the first or third transmission mechanism P3 with the nut 100 is fixed.

The second transmission mechanism P2, as shown in FIGS. 5, 8 and 11, is provided at one end of the second transmission case 101.
The passive shaft 102, which is removably spline-fitted from the left-right direction with respect to the boss portion of the driven sprocket 97 of the first transmission mechanism P1, is rotatably supported, and the passive shaft 102 is provided in the second transmission case 101. A drive sprocket 103 attached to the input cutting shaft 38 on the side of the first cutting device F by a key and a driven sprocket 104 attached to the input shaft 38 via a key on the first cutting device F side; The second transmission case 101 is equipped with an endless transmission chain 105, and the bolt 99 of the 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 are provided.
The rocking range restricting plate 107 having the arc-shaped bolt insertion long hole 106 for restricting the relative rocking around the horizontal axis X (axial axis of the passive shaft 102) X with 01 within a constant angle range is fixed. 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 and 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. The first transmission mechanism P is attached to one end of the third transmission case 109.
The passive shaft 112, which is detachably spline-fitted from the left and right direction with respect to the boss portion of the driven sprocket 97, is rotatably supported, and the passive shaft 112 is provided with a key in the third transmission case 109. Drive sprocket 113 that is mounted in an integrally rotated state, and a cylindrical transmission case 1
A driven sprocket 1 attached to one end of an intermediate transmission shaft 114 inserted in 11 through a key in an integrally rotating state.
15 and an endless transmission chain 116 that is stretched over both the sprockets 113 and 115, and the bolt 99 of the first transmission case 95 can be inserted into the third transmission case 109, and the first transmission case 95 can be inserted. The horizontal axis of the case 95 and the third transmission case 109 (the axis of the passive shaft 112)
A swing range restricting plate 118 having an arc-shaped bolt insertion slot 117 for restricting relative swing around X within a fixed angle range is fixed.

Further, 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 integral rotation state, an input sprocket 120 attached to the input shaft 56 on the second cutting device J side in an integral rotation state via a key, and An endless power transmission chain 121 that is stretched over both sprockets 119 and 120.
And are equipped with.

It should be noted that one of the traveling transmission cases 85 pivotally supporting the left and right drive rear wheels 2 is expanded and contracted (expanded and contracted) along the left and right direction so that the tread can be adjusted according to the width of the ridge R. It is configured to be operable. In addition, the driven front wheel 3 is the handlebar 1 provided on the steering handlebar 123.
The height can be freely adjusted by rotating 24.

Second Embodiment In the above-described first embodiment, the traveling machine body A is provided with a weeding device B, a raising device C, a foliage holding and conveying device D, a lower holding and conveying device E, a first cutting device F, Alignment discharging device G, excavating device H
By modifying the onion harvesting provided with and, the stem and leaf portion 1a to be sandwiched and conveyed is provided with the bulb portion 1b which is continuous to the grasping and conveying start end portion of the stem and leaf holding and conveying apparatus D or a position in the vicinity thereof.
A dual-purpose machine configured to be able to dispose a second cutting device J that cuts at a predetermined position while being left in place, that is, cultivated onion 1 is dug, and the foliage portion 1a of the dug onion 1 is held. And a rearward and upward direction, while pulling out the bulb portion 1b from the ridge R, and cutting the foliage portion 1a in the middle of holding and conveying the so-called work machine for outdoor cultivation, and the foliage portion 1a of the cultivated onion 1. When gripping and transporting the stem backward and upward, the stem and leaf portion 1a that is gripped and transported is connected to the bulb portion 1b.
The so-called working machine for multi-cultivation, which is used for cutting while leaving the leaves in the ridge R, has been described as an example, but as shown in FIG. 14, a dedicated working machine for multi-cultivation is used. It may be configured and implemented.

In the dedicated working machine for multi-cultivation of the second embodiment, a pair of left and right drive rear wheels 2 running along the longitudinal direction of the ridge and a left and right side of the ridge R while straddling the ridge R which is a cultivation place. After scooping up the foliage 1a of the onion 1 lying down so as to lie in the left-right direction from the lower side along the front-rear direction, on the traveling machine A having the driven front wheel (gauge wheel) 3 rolling ahead on the side. The stem and leaf portion 1a is pulled back upward and upward.
Device B for arranging the foliage in a posture along the front-rear direction, a raising device C for scooping the foliage portion 1a of the diced onion 1 from the left-right direction and raising it backward and upward, and the raised foliage portion 1a.
A foliage-holding and conveying device D for holding and conveying the upper part of the foliage,
At the holding and conveying start end portion of the foliage-holding and conveying device D or at a position in the vicinity thereof, the foliage portion 1a to be held and conveyed is cut at a predetermined position while leaving the bulb portion 1b connected to the foliage portion 1a in the ridge R.
A cutting device J, a cutting position adjusting means L for adjusting the mounting position of the second cutting device J with respect to the traveling machine body A up and down and front and back, and cutting that becomes cutting waste that has been held and conveyed by the foliage holding and conveying device D. A foliage discharging means M for sending the foliage portion 1a to one side in the left-right direction (right side in this embodiment) and dropping it on the bottom portion between the ridges M is provided. In other words, in the dedicated working machine for multi-cultivation of the second embodiment, the lower holding and conveying device E, the first cutting device F, the aligning and discharging device G, and the excavating device which are equipped in the first embodiment described above. It is constructed by removing H.

Since the above-mentioned various devices equipped in the dedicated working machine for multi-cultivation have the same configuration as that described in the first embodiment, the same components are the same as those in the first embodiment. , And the description thereof is omitted. Also,
When the cutting processing of the foliage portion 1a is completed while leaving the bulb portion 1b of the onion 1 in the ridge R using the dedicated working machine for multi-cultivation configured as described above, thereafter, the synthetic resin coating the ridge R With the film-made film left as it is, or after the synthetic resin film that covers the ridges R is peeled off manually or with a multi-film peeling machine, the onions 1 remaining on the ridges R after the foliar cutting treatment are manually Will be pulled out. At this time, if the traveling machine body A is equipped with the excavating device H having the same structure as described in the first embodiment, the onion 1
When the synthetic resin film covering the ridges R has been peeled off after the cutting process of the foliage portion 1a of
Before manually pulling out the bulb portion 1b of the onion 1, the excavation tool 68 of the excavation device H that was removed before the foliage cutting process.
Reattach the bulb part 1 of the onion 1 as the aircraft progresses.
The vicinity of b can be dug up preliminarily.

[Third Embodiment] The onion harvesting machine shown in FIGS. 15 to 18 is a first cutting device F for cutting the foliage portion 1a located between the holding positions of the both holding and conveying devices D and E at a predetermined position. At the holding and conveying start end portion of the foliage-holding and conveying apparatus D or at a position in the vicinity thereof, the foliage portion 1a to be held and conveyed is provided with the bulb portion 1b which is continuous with the ridge and leaf portion R.
And a second cutting device J for cutting at a predetermined position while being left on the traveling machine body A, and a single unit with respect to the drive rotating shaft 39 of the first cutting device F and the drive rotating shaft 57 of the second cutting device J. One rotary cutter 45 is replaceable.

As shown in FIG. 17, the first cutting device F is provided in a cutter case 37 which is open to one side (left side) and the lower side in the left-right direction, around a horizontal axis extending along the left-right direction. An input shaft 38 that is rotatably supported, a drive rotation shaft 39 that is rotatably supported around a vertical axis, and a pair of bevel gears 40 that interlock these two shafts 38, 39 are provided and A rotary mounting body 41 having an annular groove 41a into which the opening end of the vertically oriented cylindrical case portion 37A of the cutter case 37 is fitted on the rotary shaft 39 is integrally rotated via a key 42 and one first bolt 43. In addition to being detachably mounted in the state, the rotary mounting body 41 is provided with a plurality of disk sawtooth-shaped rotary cutters 45 facing the nipping and conveying path of the foliage-holding and conveying apparatus D and the nipping and conveying path of the lower nipping and conveying apparatus E ( In that 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 is open to one side (left side) and the lower side in the left-right direction, around a horizontal axis extending along the left-right direction. An input shaft 56 rotatably supported, a drive rotation shaft 57 rotatably supported around the vertical axis, and a pair of bevel gears 58 interlocking these two shafts 56, 57 are provided, and the drive is also provided. A rotary mounting body 41 having an annular groove 41a into which the open end of the vertically oriented cylindrical case portion 55A of the cutter case 55 is fitted on the rotary shaft 57 is integrally rotated via a key 42 and one first bolt 43. In this state, the rotary mounting body 41 is provided with a plurality of disk sawtooth-shaped rotary cutters 45 arranged at or near the gripping / conveying start end of the foliage-carrying / conveying 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 sawtooth rotary cutter 45 of the second cutting device J has the above-mentioned first structure.
The rotary mounting body 41 with the 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 have the same specifications, and the rotary mounting body 41 is attached to and detached from the drive rotary shafts 39 and 57. By attaching / detaching the rotary cutter 45 to / from the single rotary cutter 4 with respect to the drive rotary shaft 39 of the first cutting device F and the drive rotary shaft 57 of the second cutting device J.
5 is 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 has a hydraulic pump 13 interlocked with the counter shaft 83.
A hydraulic motor 131 driven by 0 is linked and linked. Since the other configurations are the same as the configurations described in the first embodiment, the same components will be denoted by the same reference numerals as those in the first embodiment, and the description thereof will be omitted.

Further, 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. Drive rotary shaft 39 of the first cutting device F
Alternatively, the driving rotary shaft 57 of the second cutting device J may be directly driven, and a flexible transmission shaft-like body such as a flexible wire may be used instead of the hydraulic drive means as described above. , 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.
A first cutting device F that cuts the foliage portion 1a located between the holding positions of E at a predetermined position, and a foliage portion 1a to be held and conveyed at the holding and conveying start end of the foliage holding and conveying device D or a position in the vicinity thereof. The second cutting device J, which cuts the continuous bulb portion 1b at a predetermined position while leaving the ridge R, is composed of a single cutting device FJ, and the cutting device FJ is provided between the holding positions of the two holding and conveying devices D and E. And a mounting position changing means Q for changing the state of the foliage-holding and conveying apparatus D to the state of being arranged at or near the holding-conveying start end portion of the foliage-holding and conveying apparatus D.

The attachment position changing means Q is fixed to the main tubular frame body 5A in the front-rear direction of the machine body frame 5 and the attachment frame body 46 fixed to the side of the foliage holding conveyance frame body 21 of the foliage holding conveyance device 21. A pair of guide rods 47 and 48 that are positioned in parallel with each other at an inclination angle slightly larger than the inclination angle of the foliage-holding and conveying device D, and are slidably fitted onto the large diameter guide rod 47. Cylindrical guide part 1
The cutter case 13 of the cutting device FJ is attached to the elevating and lowering movable body 135 provided with the sliding guide member 49 having a substantially U-shape that slidably engages with the guide rod 48 on the small diameter side 35A.
The first mounting member 138, which detachably and fixedly attaches the mounting seat 136A formed in 6 with a plurality of (two in the present embodiment) bolts 137, is fixedly coupled with a plurality of bolts, and further, the mounting frame is A bolt 140 with an operation knob is provided for movably fixing the lifting movable body 135 within the range of the vertical elongated hole 51 formed in the body 46.

Further, the support plate 6 fixed to the front end portion of the main cylindrical frame body 5A of the machine body frame 5 is relatively slidably contacted in the front-rear direction with the second mounting member 141 having an L shape in plan view. A plurality of (two in the present embodiment) bolts and nuts are fixedly connected in a movable state, and a plurality of mounting seats 136A formed on the cutter case 136 of the cutting device FJ are mounted on the second mounting member 141. A plurality of (two in the present embodiment) bolts 61, in which a third mounting member 142, which is detachably fixedly connected by two (in the present embodiment) bolts 137, can be slidably moved in the vertical direction. It is fixedly connected via a nut.

The lifting movable member 135 having the pair of guide rods 47 and 48 and the sliding guide member 49, the vertical elongated hole 51 formed in the mounting frame member 46, and the bolt 140 with the operation knob are held between the guide rods 47 and 48. A cutting device FJ detachably disposed between the holding positions of the transport devices D and E, that is, a cutting device F detachably fixed to the first mounting member 138.
The cutting position changing means N is configured to change the attachment position of J in the up-down direction substantially along the inclination direction of the foliage-holding and conveying device D.

In addition, a pair of upper and lower first bolt holes 65 for bolt insertion along the front-rear direction are 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 part 141B along the direction
A pair of left and right second bolt insertion holes 66 are formed along the up-and-down direction, and the support plate 6 and the second mounting member 141 are opposed to each other in the front-rear direction within the range of the first elongated holes 65. Movement adjustment operation and second mounting member 1 within the range of the second elongated hole 66
By a relative movement adjusting operation of the vertical movement of 41 and the third mounting member 142, the cutting device F detachably arranged at the holding and conveying start end portion of the foliage-holding and conveying device D or in the vicinity thereof.
J, that is, a 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.

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

[Other Embodiments] (1) In each of the above-described embodiments, an onion has been described as an example of a cultivated crop, but the working machine of the present invention can be used for other cultivated crops such as root vegetables. Can be applied. (2) In the first embodiment, the second cutting device J is used.
Although the mounting position of the second cutting device J with respect to the traveling machine body A can be adjusted up and down and front and back, the mounting position of the second cutting device J with respect to the traveling machine body A can be adjusted by only one of the upper, lower, front and rear. Good. (3) In the attachment position changing means Q of the above-described fourth embodiment, the single cutting device FJ that constitutes the first cutting device F and the second cutting device J is held between the traveling machine body A by the attachment / detachment work. The mounting position changing means Q is configured to be changed between a state in which it is arranged between the holding positions of the conveying devices D and E and a state in which it is arranged at the holding and conveying start end portion of the foliage-holding and conveying device D or a position in the vicinity thereof. It may be configured by a link mechanism, a robot arm, or the like that can be flexibly driven and swung in three-dimensional directions including the vertical direction and the horizontal direction.

[Brief description of drawings]

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

[Fig. 2] Side view of the entire aircraft

FIG. 3 is a plan view of the entire body

FIG. 4 is a front view of the entire body

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

FIG. 6 is a side view of a main part showing a harvested state of a multi-cultivated crop.

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

FIG. 8 is an enlarged perspective view of a cutting position changing unit 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 the second cutting device.

FIG. 11 is an enlarged cross-sectional view of the first transmission mechanism.

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

[Fig. 13] Overall transmission system diagram

FIG. 14 is a side view of a main part of a dedicated working machine for multi-cultivation showing a second embodiment.

FIG. 15 is a side view showing a harvested state of a field-grown 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 an essential part showing a harvested state of a multi-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]

A traveling aircraft C raising device D Stem and leaf carrier E Lower carrying device F first cutting device H excavator J second cutting device L cutting position adjusting means M foliage discharging means N Cutting position changing means P1 transmission mechanism (first transmission mechanism) P2 transmission mechanism (second transmission mechanism) P3 transmission mechanism (third transmission mechanism) Q Mounting position changing means X horizontal axis 1 Cultivated crops (onions) 1a Stem and leaf 1b Rhizome (bulb) 39 Drive shaft 45 cutter 57 Drive rotation axis

─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Kazuaki Fukudome 64 Ishizukitamachi, Sakai City, Osaka Prefecture Kubota Corporation Sakai Factory (56) References JP-A-11-318157 (JP, A) JP-A-11 -42008 (JP, A) JP 3-35713 (JP, A) JP 7-289049 (JP, A) JP 11-75457 (JP, A) (58) Fields investigated (Int.Cl . ⁷ , DB name) A01D 13/00-33/14

Claims (8)

(57) [Claims] 1. A traction device for raising a foliage portion of a cultivated crop on a traveling machine body, and a foliage holding and conveying device for holding the raised foliage portion and pulling out a rhizome portion upward and backward.
Among the foliage parts to be held and carried, the lower holding and carrying device, which holds the foliage part closer to the root and stalk part than the holding position of the foliage holding and carrying device and carries it to the rear, and is located between the holding positions of both the carrying devices. A work machine for cultivated crops, which is provided with a first cutting device that cuts the foliage portion at a predetermined position, wherein the foliage to be sandwiched and transported is held at the grazing transport starting end of the foliage-carrying transport device or a position in the vicinity thereof. Run a second cutting device that cuts at a predetermined position while leaving the rhizome connected to it in the cultivation area.
A work machine for cultivated crops that is configured to be detachable from the traveling body . 2. The cultivated crop according to claim 1, wherein a foliage discharging means is provided at a grabbing and conveying end portion of the foliage-carrying and conveying device, and the foliage discharging means is provided for feeding the cut and foliage portion which has been conveyed by grabbing to one side in the left-right direction. Working machine. Wherein the second cutting device crop working machine mounting position the vertical and in the claims 1 or 2 wherein the cutting position adjustment means for adjusting at least one of the front and rear is provided for. 4. The first cutting device and the second cutting device are composed of a single cutting device, and the cutting device is arranged between the holding positions of both the holding and conveying devices and the foliage holding and conveying device. 4. The work machine for cultivated crops according to claim 1, 2 or 3, further comprising mounting position changing means for changing to a state in which the holding and transporting start end of the above is arranged or a position in the vicinity thereof. 5. The first cutting device and the second cutting device are permanently installed in a traveling machine body, and a single unit is provided for the drive rotating shaft of the first cutting device and the drive rotating shaft of the second cutting device. The cutter is configured to be replaceable.
Or the working machine for cultivated crops according to 3 . 6. 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 the variation in the transmission distance due to the change in the mounting position of the first cutting device, the transmission device is composed of a plurality of transmission mechanisms that are flexibly connected around the horizontal axis, and is different from the transmission mechanism on the driving part side in the other. The work machine for cultivated crops according to claim 1, 2 or 3 , wherein the transmission mechanism on the side of the first cutting device and the transmission mechanism transmission-connected to the second cutting device are configured to be replaceable. 7. The lower holding and conveying device is in a gentle inclination posture or a horizontal posture in which the distance between the holding positions of the foliage holding and conveying device is larger toward the end of the conveyance, and the lower holding device is held and conveyed by the foliage holding and conveying device. The work machine for cultivated crops according to any one of claims 1 to 6 , which is configured to have a holding force that allows relative movement of the roots and roots of the crop in a vertical direction with respect to the foliage of the crop. . 8. The cultivated crop according to any one of claims 1 to 7 , wherein the traveling machine is equipped with a digging device for digging the vicinity of the rhizome of the cultivated crop as the machine progresses. Working machine.