JP3549458B2 - Root crop harvester - Google Patents

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a harvester used for harvesting root vegetables such as onions, carrots, radishes, garlic, and the like.
[0002]
[Prior art]
As an onion harvesting machine which is an example of the harvesting machine, for example, an onion harvesting machine disclosed in Japanese Patent Publication No. 2759442 is known. This onion harvester is a vertical turning type leaf stem pulling device that lifts the root stem of a root vegetable in a field by moving the locking claw from the vicinity of the ground diagonally upward and backward from the vicinity with the locking claw protruding toward the front side. A lateral-leaf type leaf stem lifting device that lifts the leaf stem pulled up by the leaf stem lifting device and moves it upward and obliquely upward with a locking claw protruding sideways and scrapes the leaf stem, A pinch pulling and conveying device that pinches and conveys the leaf stems picked up by the leaf stem raising device and pinches and conveys it obliquely rearward and upward, and by moving the machine forward along the root vegetable strip, first falls down The leaf stem is lifted by the leaf stem pulling device, and then the lifted leaf stem is lifted by the left and right leaf stem lifting devices and guided to the start end of the pinch pulling transport device, and the leaf stem is pinched by the pinch pull transport device. Then diagonally upward By conveys raised disconnect the root vegetables from the field, then, leaves cutting process, or the like is subjected to being configured to slide into releasing root body in the field plane.
[0003]
[Problems to be solved by the invention]
In the above-mentioned onion harvesting machine, it is extremely important to pinch the leaf stem with a pinching pulling and conveying device in order to properly extract the root vegetables and the subsequent processing, and the leaf stem is of a vertical type. After being pulled up by the leaf stem pulling device, it is raked up by a horizontal type leaf stem pulling device and guided to the start end of the nipping pulling and conveying device. Here, the leaf-stalk-raising device moves the locking claw sideways at its start end, so that the locking claw is easily locked to the leaf stem that has fallen in the front-rear direction, and the scraping action is properly performed. However, the locking claw does not easily lock the leaf stem that has fallen sideways, and locking leakage is likely to occur. Therefore, it is necessary that the vertical turning type leaf stem pulling device be in a posture in which the horizontal turning type leaf stem raising device can easily lift the leaf stem.
[0004]
However, in the conventional structure, since a pair of vertical turning type leaf stem pulling devices arranged on the left and right with respect to one root vegetable were arranged to function equally on the left and right, especially in the root vegetable strip on the ridge shoulder side. In some cases, pull-up leakage may occur for leaf stems that have fallen significantly toward the outside, and leaf stems that have escaped from pulling by the locking claws of the leaf stem pulling device, or of the leaf stem pulling device The leaf stem, which was not sufficiently pulled up by the locking claw, reached the starting end of the horizontal-rotating type leaf stem raising device while falling down sideways, and was scraped by the locking claw of the leaf stem raising device. There was a case where the pulling action was not sufficiently received, and some of the leaf stems were not pinched, and the pulling action was performed in an insufficient pinching state that hanged below the pinch pulling and conveying device. .
[0005]
The present invention has been made in view of such a situation, and even in a case where the leaf stem is greatly collapsed laterally and outwardly, the leaf stem can be surely provided by a laterally-leaved leaf stem scraping device. It is an object of the present invention to be able to perform the pulling by the holding / pulling / conveying device in a sufficient holding state after being locked and raised.
[0006]
[Means for Solving the Problems]
[Structure, operation and effect of the invention according to claim 1]
[0007]
(Structure) The invention according to claim 1 is a vertical-rotation type in which the locking claws are moved obliquely rearward and upward from the vicinity of the ground in a posture in which the locking claws protrude toward the front side to pull up the roots of root vegetables in the field. The leaf-stalk pulling device is located on both left and right sides of the root vegetable strip, and the leaf-stalk lifted by the leaf-stalk pulling device is moved obliquely upward and rearward with the locking claws protruding sideways. A leaf-stalk-raising device that is turned horizontally and lifted up is disposed behind the leaf-stalk pulling device. A root crop harvesting machine configured to be pinched and conveyed toward, and a plurality of the leaf stem pulling devices are arranged side by side on the lateral outer side of the root crop, andThe lower end of the locking claw action trajectory of the plurality of leaf stem pulling devices arranged in parallel on the lateral outside of the root crop is on a ridge other than the plurality of leaf stem pulling devices arranged in parallel on the lateral outside of the root crop. Claw action of the leaf stem pulling device located at the bottom Positioned below the lower end of the locus, of the plurality of leaf stem pulling devices arranged in parallel left and right on the lateral outside of the root vegetables,Locus of locking claw action in the leaf stem pulling device far from the root croplower endOf the locking claw action locus of the leaf stem pulling device on the side near the root vegetable stripBelow the bottomCharacterized in that it is located at
[0008]
(Action)According to the above configuration, when harvesting the root vegetables cultivated on the ridge, the harvesting work is performed such that the plurality of vertical turning type leaf stem pulling devices are located laterally outside the root vegetables on the ridge shoulder side so that the ridges are removed. Even if the leaf stem falls from the top to the ridge bottom side, the outer leaf stem pulling device, whose lower end of the locking claw action is set low, engages the leaf stem falling to the ridge bottom side as described above. Stop pulling or pushing forward, then the inner leaf stem pulling device exerts a locking pulling action, or forward pushing action, and then is locked by a horizontal type leaf stem lifting device. This is lifted to a small extent and guided to the start end of the nipping / pulling-up transport device.
[0009]
(Effect)Therefore, according to the invention of claim 1, when harvesting root vegetables cultivated in ridges, even if the leaf stems fall from the top of the ridge to the bottom side of the ridge, the leaf stem is turned sideways and the leaf stem scraping device is used. As a result, it is possible to securely pull out the sheet by pulling it up with a small amount of locking leakage and leading it to the nipping / pulling-up transport device.
[0010]
[Structure, operation and effect of the invention according to claim 2]
[0011]
(Structure) The invention according to claim 2 is the invention according to claim 1, wherein, among the plurality of leaf-stalk pulling-up devices arranged side by side on the lateral outer side of the root crop, the leaf stem farther from the root crop is provided. Of the action trajectory of the locking claw in the pulling devicefront endOf the locking claw action locus of the leaf stem pulling device on the side near the root vegetable stripForward than front endIt is located in.
[0012]
(Action)According to the above configuration, a plurality of vertically turning leaf stem pulling devices arranged in parallel on the left and right act on the lateral outer side of the root vegetable strip, and the front end of the locking claw action trajectory in the leaf stem pulling device farther from the root vegetable strip. However, since the leaf stem is located forward of the front end of the locking claw action trajectory of the leaf stem pulling device on the side closer to the root vegetable strip, even if the leaf stem has fallen significantly laterally outward, first the outermost leaf At the lower end portion of the stem pulling device, when the locking claw turns around from below and projects forward, it acts to push the leaf tip side of the leaf stem forward. Therefore, although the leaf stem sufficiently locked by the locking claw of the leaf stem pulling device is pulled up, the leaf stem is pushed forward even if the locking is insufficient. Then, the inner leaf stem pulling device operates in the same manner, and the leaf stem sufficiently locked by the locking claw is further pulled up. However, even if the locking is insufficient, the leaf stem is pushed further forward, and Even if the leaf stem is not pulled up by the stem pulling device, the leaf stem remaining to be pulled up is in a posture of falling forward by a plurality of forward pushing operations sequentially performed from the leaf tip side, and a laterally rotating leaf stem picking up. It reaches the beginning of the device. As described above, the horizontal-rotating type leaf stem pulling device is sufficiently engaged so that the locking claws intersect with the forward-facing leaf stem, so that the horizontal-rotating type leaf stem pulling device is pulled up by the vertical-rotating leaf stem raising device. The leaf stem that has been corrected and tilted forward and falls down is surely lifted by the leaf stem lifting device and guided to the start end of the nipping and pulling transport device.
[0013]
(Effect)Therefore, according to the second aspect of the present invention, even when the leaf stems are greatly inclined laterally outward, a plurality of laterally-rotating leaf stem scraping devices sequentially push forward a plurality of times from the leaf tip side. By applying the action, the leaf stem that has fallen greatly is set to a forward position that is easy to lift by the horizontal turning type leaf stem lifting device, and it is lifted up and pinched by the horizontal turning type leaf stem lifting device with little locking It led to the pulling and conveying device, and it was possible to perform reliable pulling.
[0014]
[Structure, operation and effect of the invention according to claim 3]
[0015]
(Structure) The invention according to claim 3 is the invention according to claim 1 or 2, wherein each of the plurality of leaf stem pulling devices arranged side by side on the lateral outside of the root vegetable strip is connected to the locking claw. The lengths are the same, and the position of the front end of the case of each leaf stem pulling device is shifted.
[0016]
(Operation / Effect) According to the above configuration, each leaf stem pulling device can have the same basic components only by different positions of the front end of the case, and the desired front end by changing the length of the locking claw. It can be implemented at a lower cost than a means for setting the position.
[0017]
[Structure, operation and effect of the invention according to claim 4]
[0018]
(Structure) The invention according to claim 4 is the invention according to any one of claims 1 to 3, wherein each of the plurality of leaf stem pulling devices arranged side by side on the lateral outside of the root vegetable strip is the same. It is configured to specifications, and the leaf stem pulling device farther from the root crop is inclined backward more than the leaf stem pulling device closer to the root crop.
[0019]
(Operation / Effect) According to the above-described configuration, a desired front end position can be set by arranging a plurality of leaf stem pulling devices having the same specifications in parallel and varying their inclination angles. By changing the length of the front end or the overall length of the apparatus, the operation can be performed at a lower cost as compared with a means for setting a desired front end position.
[0020]
[Structure, operation and effect of the invention according to claim 5]
[0021]
(Configuration) In the invention according to claim 4, in the invention according to claim 4, the rear inclination angle of the leaf stem pulling device is adjustable.
[0022]
(Operation / Effect) According to the above configuration, by adjusting the rear inclination angle of the leaf stem pulling device, the leaf stem can be locked without difficulty according to the amount of the leaf stem, the degree of falling, or the falling direction. The leaf stem can be lifted up, which is effective in reliably and smoothly introducing the leaf stem into the starting end of the nipping / pulling / conveying device by the horizontally rotating leaf stem raising device.
[0023]
[Structure, operation and effect of the invention according to claim 6]
[0024]
(Structure) The invention according to claim 6 is the invention according to any one of claims 1 to 5, wherein a side near a hem of a ridge shoulder is located on a lateral side of a position corresponding to a clamping start end portion of the clamping and lifting conveyance device. And the bottom of the root vegetable body is deployed, and it is easy to flip up the hem of the multi-seat hung on the ridge near the skirt of the ridge shoulder at the position just in front of this hood. An auxiliary tool for turning up the sheet is provided.
[0025]
(Action) According to the above configuration, when harvesting root vegetables such as onions cultivated in a ridge covered with a multi-sheet, first, the sheet-turning-up auxiliary tool moves forward while acting near the skirt of the ridge shoulder. Then, the soil covered on the hem of the multi-sheet is broken or removed, and the hem of the multi-sheet is easily turned up. Subsequently, the soil-breaking body advances from the vicinity of the skirt of the ridge shoulder through which the sheet-turning-up assisting tool has passed to the bottom of the root vegetable main body and advances to soften the soil near the root vegetable planting. At this time, the hem of the multi-seat is easily turned up by the passage of the sheet-turning-up aid, so that the mud-breaker does not catch the multi-sheet and drags or breaks. The hem is pushed up easily and turned up.
[0026]
In addition, when the crushed soil expands and softens the soil near the root plants, the leaf stems of the root plants will begin to be pinched and conveyed by the pinch-and-lift transport device. Can be In this case, a perforation or a cut is previously made in the planting hole of the multi-sheet, so that the planting hole can be incised to extract the root vegetables.
[0027]
(Effects) Therefore, according to the invention according to claim 6, the above effects of the invention according to any one of claims 1 to 5 can be obtained, and the root vegetables can be harvested with the ridges wrapped in a mulch.
[0028]
[Structure, operation and effect of the invention according to claim 7]
[0029]
(Structure) In the invention according to claim 7, in the invention according to claim 6, a guide member is provided from the sheet-turning-up assisting tool to the soil breaking body.
[0030]
(Action) According to the above configuration, the hem of the multi-seat that has been released by the action of the sheet-turning-up assisting tool is received by the guide member, guided to the soil-breaking body without drooping again, and further turned up. . In addition, the guide member also has a function of receiving and discharging soil and weeds that have accumulated between the sheet-turning-up assisting tool and the soil breaking body.
[0031]
(Effects) Therefore, according to the invention of claim 6, the function of turning up the hem of the multi-sheet is further enhanced, and the root vegetables can be more effectively harvested on the multi-lined ridge.
[0032]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, an example of an embodiment in which the present invention is applied to a walking-type onion harvester will be described with reference to the drawings. As shown in the side view of FIG. 1, the plan view of FIG. 2, and the front view of FIG. 3, this onion harvester has four onions (root vegetables) W grown on a wide flat ridge. It is configured to harvest the right two rows in the traveling direction. A three-wheel traveling type traveling body A equipped with a loop-shaped steering handle 1 is equipped with a two-section digging specification harvesting section B. Structure.
[0033]
The traveling body A is provided with a pair of left and right driving rear wheels 2 that straddle a ridge and one idle front wheel 3 that moves on the right ridge bottom. Power from an engine 4 mounted on the rear of the body is transmitted to a transmission case 5. After that, the transmission is transmitted to the left and right driving rear wheels 2 via the axle case 6 and the chain case 7. The left rear axle case 6 can be expanded and contracted so that the left driving rear wheel 2 can be shifted left and right so that the rear wheel tread can be changed according to the ridge width. The idle front wheel 3 functioning as a gauge wheel for determining the height of the harvesting section B with respect to the ground is configured to be vertically adjustable by rotating the handle 8 at hand.
[0034]
The harvesting section B includes a vertically-rotating leaf stem pulling device 10 located on the left and right sides of each of the two onions W to be harvested, a horizontal-rotating leaf stem lifting device 11 located behind the device, and thereafter , A crushing device 13 located near its starting end, a positioning device 14 located below the clamping / pulling-up and transporting device 12, and a position between the clamping / pulling-up / transporting device 12 and the positioning device 14. , A posture aligning device 16 located at the rear of the position aligning device 14, and the like. The detailed configuration and function of each unit will be described below.
[0035]
The vertical turning type leaf stem pulling device 10 has a plurality of locking claws 23 connected to a chain 22 which is wound between sprockets provided on the upper and lower sides of a case 21 and driven in a vertical direction so as to be able to move up and down. 23 is moved obliquely rearward and upward from the vicinity of the ground in a posture in which it protrudes toward the front side so as to pull up the leaf stem Wb of the onion W, and the left and right sides of each of the two onions W In addition, two leaf stem pulling devices 10 are arranged in parallel on the right outside of the right onion, and four leaf stem pulling devices 10 are used as a whole.
[0036]
Here, each of the four leaf stem pulling devices 10 is configured to have the same specification and is driven as follows. That is, as shown in the transmission system of FIG. 8, a PTO shaft 26 for which power transmission is interrupted via a PTO clutch 25 is horizontally mounted on a working power output unit 24 provided at the front of the transmission case 5. At the front end of a forward transmission shaft 27 extending forward from the left end of the PTO shaft 26, a horizontal transmission shaft 28 for driving a leaf puller is suspended. The lateral transmission shaft 28 drives the left two leaf stem pulling devices 10 (1) and 10 (2), and the right two leaf stem pulling devices 10 (3) and 10 (4) The rear end drive position is sequentially shifted via the auxiliary chain transmission device 29 and driven. And on the right side of the right onion stripLeaves stemThe pulling device 10 (3) is tilted more rearward than the two leaf stem pulling devices 10 (1), 10 (2) on the left side, and the front end of the case has two leaf stem pulling devices 10 (1), 10 (2) on the left side. ) Project forward and downward from the front end of the case. The rightmost leaf stem pulling device 10 (4) is further inclined backward more than the inner leaf stem pulling device 10 (3), and the front end of its case is the case of the inner leaf stem pulling device 10 (3). It projects further forward and downward than the front end. The locking claw 23 of each leaf stem pulling device 10 is formed of a soft resin that is easily elastically deformed.
[0037]
As shown in FIG. 3, the leaf stem pulling device 10 configured as described above has two leaf stem pulling devices 10 (1) and 10 (2) on the left side acting on the ridge, The right two leaf stem pullers 10 (3), 10 (4) will operate near the ridge shoulder and ridge bottom.
[0038]
Here, when the right onion streak Wb has fallen significantly to the right outside of the fuselage (the bottom of the ridge), the rightmost leaf stump pulling-up device 10 (4) projecting most forward will firstly operate the leaf stump Wb. Act on. In this case, at the lower end of the leaf stem pulling device 10 (4), when the locking claw 23 wraps around from below and projects forward, it acts to push the leaf stem Wb forward. Therefore, the leaf stem Wb sufficiently locked by the locking claw 23 of the leaf stem lifting device 10 (4) is pulled up, but even if the locking is insufficient, the leaf stem Wb is pushed forward. Next, the inner leaf stem raising device 10 (3) operates in the same manner, and the leaf stem Wb sufficiently locked by the locking claw 23 is further pulled up. However, even if the locking is insufficient, the leaf stem Wb is further moved forward. The leaf stem Wb that is pushed and is not lifted by the both leaf stem pulling devices 10 (3) and 10 (4) assumes a posture that has fallen forward by the two forward pushing actions.
[0039]
The case 21 of the two leaf stem pulling devices 10 (3) and 10 (4) on the right side is configured so that the mounting angle can be changed and adjusted in a plurality of stages, such as the height of the ridges and the degree of falling of the leaf stem Wb. The front and rear positions and the vertical position at the front end of the locking claw action trajectory are adjusted in accordance with the above, so that a suitable leaf stem pulling can be performed.
[0040]
The horizontal turning type leaf stem picking device 11 has a plurality of locking claws 33 connected to a belt 32 which is wound between pulleys provided above and below a case 31 and is driven to rotate in a horizontal direction. Is moved obliquely rearward and upward from the vicinity of the ground in a posture in which it protrudes toward the lateral side, so that the leaf stem Wb of the onion W is scraped up. After the two onion W leaf stems Wb pulled up by the leaf stem pulling device 10 are raked from the left and right at the starting ends of the two belts 32, the locking claws 33 are arranged to face each other so as to overlap. , And can be lifted upward and rearward.
[0041]
In this case, the leaf stem raising device 11 moves the locking claw 33 sideways to lift the leaf stem Wb, so that the locking claw 33 greatly intersects the leaf stem Wb facing in the front-back direction. As described above, even if it is not pulled up by the leaf stem lifting device 10, it is corrected to the posture of falling forward as described above, so that the scraping action by the leaf stem lifting device 11 is performed. It can be received reliably, and all the leaf stems Wb are scraped up without leakage.
[0042]
The nipping pulling and conveying device 12 is configured by arranging a pair of left and right wide nipping belts 34 wound and driven side by side between upper and lower pulleys and opposed to each other. The two onions W on the ridge are pulled up by strongly holding the leaf stems Wb of the two onions W with the left and right holding belts 34 and moving upward and backward.
[0043]
As shown in FIG. 8, the left holding belt 34 of the holding / pulling-up conveyance device 12 is driven by the power taken out from the PTO shaft 26 via the worm speed reduction mechanism 36 and the chain 37, and the left holding belt 34 is held. The left belt 32 in the foliage picking device 11 is driven by the power taken out from the front end of the belt 34. Further, the power taken out through a transmission shaft 38 interlockingly connected to the middle of the chain 37 drives the right holding belt 34 in the holding / pulling-up transport device 12 and removes the right holding belt 34 from the front end thereof. The belt 32 on the right side of the leaf stem raising device 11 is driven by the generated power.
[0044]
As shown in FIGS. 5 and 7, the crushing device 13 is provided behind the two leaf stem pulling devices 10 (3) and 10 (4) on the right side, and the right two ridges are located near the skirt of the ridge shoulder. And a sheet-breaking body 41 bent in an L-shape when viewed from the front so as to enter below the onion W, and a sheet flipping up near the skirt of the ridge shoulder slightly outside the position immediately in front of the body 41. The earth breaking body 41 is pivotally supported at the front part of the body frame 9 so as to be able to swing back and forth around a fulcrum a, and has an eccentric provided at its upper end and the right end of the PTO shaft 26. The crank portion 43 is interlocked and connected by a rod 44, and the rod 44 is pushed and pulled through the eccentric crank portion 43, whereby the crushing body 41 is rocked back and forth with a constant small stroke around the fulcrum a. , Crushing the soil below the onion W It is, the clamping pulling feeder 12 onions W lifted is clamped the leaf stems Wb by is adapted to be raised vent reasonably be.
[0045]
Further, the sheet-turning-up auxiliary tool 42 is also pivotally supported around the fulcrum b so as to be able to swing back and forth, and is operatively connected to the soil breaking body 41 via the linking rod 45, and is synchronized with the longitudinal swinging of the soil breaking body 41. It is designed to be driven to swing back and forth, and by moving forward while cutting down the skirt portion of the ridge shoulder, the rush resistance of the subsequent crushing body 41 into the soil is reduced and the ridge is hung on the ridge. The multi-seat F moves forward while slightly pushing up and turning up the right hem. In this manner, the right-hand hem of the multi-seat F is freely set by the sheet-turning-up auxiliary tool 42 so that the multi-sheet F can be easily turned up. It is done smoothly without.
[0046]
The position aligning device 14 is configured by arranging a pair of left and right guide belts 47 that are wound between the front and rear pulleys and driven sideways, and are installed substantially horizontally in the front and rear direction. In other words, the distance between the alignment device 14 and the nipping / pulling / up conveying device 12 above it becomes larger toward the rear side in the conveying direction, and the onion whose leaves are held by the nipping / pulling / up conveying device 12 and conveyed obliquely rearward and upward. By introducing the leaf stem Wb of the W between the left and right guide belts 47, the onion main body that is to be lifted upward by the nipping / pulling-up transport device 12 is received by the lower surface of the guide belt 47, and further upward movement is prevented. By doing so, the onion main body Wa is configured to have a uniform height. As shown in the figure, the left and right guide belts 47 in the positioning device 14 are driven by the power taken out from the rear ends of the left and right belts 32 in the foliage scraping device 11, respectively.
[0047]
Here, the leaf stem holding force of the left and right holding belts 34 in the holding / pulling-up / carrying device 12 is strong at the front end side of the carrying where the onion is pulled up from the field, and the height of the onion main body Wa is increased in cooperation with the positioning device 14. The nipping force is weakened in the aligning transport region, and the leaf stem Wb of the onion W, which has been prevented from moving upward by the aligning device 14, is relatively pulled down from the nipping and pulling transport device 12.
[0048]
The leaf cutter 15 is configured as a single disk cutter provided at the front end of a pair of chain transmission mechanisms 48 and 49 that are connected to the PTO shaft 26 so as to be able to bend and extend. 14 cuts the leaf stem Wb of the onion W in which the height of the onion body Wa is aligned, and adjusts the position of the leaf stem Wb up and down along the linear slide guide mechanism 50 to remove the leaf stem Wb left uncut in the onion body Wa. It is configured so that the length can be adjusted.
[0049]
The attitude aligning device 16 includes a guide bar 51 and a guide plate 52 disposed on the end side of the position aligning device 14 with a conveyance path therebetween, and a belt 53 with a protrusion driven by power taken out from the end of the left guide belt 46. After the leaves are cut, the onion main body Wa, which has been left behind and is conveyed to the rear by being pinched by the left and right guide belts 46, is collected by the guide bar 51 and the guide plate 52. It is configured so that it is corrected to an easy horizontal position and is forcibly released onto the ridge.
[0050]
The onion-harvesting machine according to the present invention is configured as described above. For four onions W cultivated in a flat ridge, two strokes on the right side in the traveling direction are harvested by one stroke advance, and one reciprocation. By moving, four rows of ridges will be harvested.
[0051]
In this case, the ridge is covered with the multi-sheet F to keep the ridge warm, retain water, prevent weeds from taking root, and the like. When the onion seedlings are planted on the multi-sheet F, perforations m are provided in advance along the rows of the planting holes h, and cultivation is performed.
[0052]
The onion W cultivated with the ridges multi-hung as described above cannot be pulled out as it is because the onion main body Wa grows larger than the planting hole h, but as described above, the sewing is previously performed on the multi-sheet F. By attaching the eyes m, the onion main body Wa can be easily pulled out on the sheet by breaking the perforations m when the leaf stem Wb is nipped and conveyed by the nipping / pulling / up conveying device 12. In addition, the onion main body Wa that has been subjected to the leaf cutting process is discharged onto the multi-sheet F remaining on the ridge. Note that a cut may be made in the edge of the planting hole h instead of the perforation m.
[0053]
[Another embodiment]
The present invention can be implemented in the following forms.
[0054]
(1) If the left-right spacing of the two right-side leaf stem pulling devices 10 (3) and 10 (4) is adjustable, a suitable pulling corresponding to the length of the leaf stem Wb and the degree of falling can be performed. .
[0055]
(2) The four leaf stem pulling devices 10 (1), 10 (2), 10 (3), 10 (4) are driven by a common horizontal transmission shaft, and the two leaf stem pulling devices 10 on the right side are driven. (3), length of case of 10 (4)RespectivelyThe positions of the locking claw action trajectories of the leaf stem pulling devices 10 (3) and 10 (4) can be set differently.
[0056]
(3) The locking claws of the right two leaf stem pulling devices 10 (3) and 10 (4) are set longer than the locking claws of the left two leaf stem pulling devices 10 (1) and 10 (2). Thus, the position of the locking claw action locus can be set.
[0057]
(4) When the locking claws of the outermost leaf stem pulling device 10 (4) are formed of a hard resin material, the locking function of the leaf stem Wb is further ensured. In this case, even if the locking claw contacts the skirt of the multi-sheet F, the sheet free end escapes from the locking claw, so that the locking claw does not pierce the multi-sheet F and break.
[0058]
(5) In the case of harvesting onions cultivated in the open air with ridges that are not multi-hung, the sheet turning-up auxiliary tool 42 may be omitted.
[0059]
(6) As shown in FIGS. 9 and 10, a guide member 46 made of a plate material is extended from the lower end portion of the sheet-turning-up assisting tool 42 in a cantilevered rearward direction. Overlap the lower working part. According to this configuration, the skirt of the multi-sheet F released by the soil breaking action of the sheet lifting aid 42 is received by the guide member 46 and is guided to the soil breaking body 41 without drooping again. It is pushed by 41 and is further turned up. In addition, the guide member 46 also has a function of receiving and discharging soil and weeds remaining between the sheet-turning-up auxiliary tool 42 and the soil breaking body 41.
[Brief description of the drawings]
FIG. 1 is an overall side view of a root crop harvester.
FIG. 2 is an overall plan view of a root crop harvesting machine.
FIG. 3 is an overall front view of the root crop harvester.
FIG. 4 is a side view of a harvesting unit.
FIG. 5 is a plan view showing a front part of the harvesting unit.
FIG. 6 is a front view showing a part of a harvesting unit.
FIG. 7 is a side view of a crusher.
FIG. 8: Transmission system diagram
FIG. 9 is a side view showing another embodiment of the crusher.
FIG. 10 is a perspective view of another embodiment of the crusher.
[Explanation of symbols]
10 Leaf stem pulling device
11 Leaf stem picking device
12 Nipping, lifting and conveying device
23 Locking Claw
33 Locking Claw
41 crushed body
42 Sheet turning aid
46 Guide member
F multi sheet
W root vegetable
Wa root vegetable body
Wb leaf stem

Claims (7)

A vertically-turned leaf stem that moves the root (W) leaf stem (Wb) in the field by moving the locking claw (23) upward and obliquely upward from the vicinity of the ground in a posture protruding forward. The pulling device (10) is disposed on both the left and right sides of the root vegetable strip, and the leaves are lifted by the leaf stem pulling device (10) with the locking claws (33) protruding sideways. A leaf turning device (11) is provided behind the leaf pulling device (10), and is moved up obliquely rearward and is lifted by the leaf turning device (11). A root crop harvester configured to hold the obtained leaf stem by a holding / pulling-up / carrying device (12) and to hold and convey the leaf stem obliquely upward and rearward,
A plurality of the leaf stem pulling devices (10) are arranged side by side on the lateral outer side of the root crop, and a plurality of the leaf stem raising devices (10) arranged in parallel on the lateral outer side of the root crop. The lower end of the locking claw action locus of the leaf claw pulling device (10) in which the lower end of the pawl action locus is positioned on a ridge other than the plurality of leaf shoot pulling devices arranged in parallel on the lateral outer side of the root vegetable strip. And a locking claw action in the leaf stem pulling device (10) farthest from the root vegetable strip, of the plurality of leaf stem pulling devices (10) arranged in parallel left and right laterally outside the root vegetable strip. the lower end of the trajectory, root crops harvester, characterized in that the lower end of the locking claw acts trajectory in leaf and stem pulling apparatus close to the root article side (10) are then positioned below. The front end of the locking claw action trajectory of the leaf stem pulling device (10) farther from the root vegetable strip among the plurality of leaf stem pulling devices (10) arranged side by side on the lateral outside of the root vegetable strip, The root crop harvester according to claim 1, wherein the leaf stem pulling device (10) closer to the root crop is located forward of the front end of the locking claw action trajectory. Each of the plurality of leaf stem pulling devices (10), which are arranged side by side on the lateral outside of the root vegetable strip, has the same length of the locking claw (23), and each leaf stem pulling device. The root crop harvester according to claim 1 or 2, wherein the position of the front end of the case of the device (10) is shifted. Each of the plurality of leaf-stalk pulling devices (10) arranged in parallel to the left and right on the lateral outer side of the root vegetables is configured to have the same specifications, and the leaf-stem lifting device (10) farther from the root vegetables is attached to the root vegetables. The root crop harvester according to any one of claims 1 to 3, which is inclined backward more than the leaf stem raising device (10) on the side closer to the root. The root crop harvester according to claim 4, wherein a rear inclination angle of the leaf stem pulling device (10) is adjustable. On the side of the portion corresponding to the nipping start end portion of the nipping and pulling and conveying device (10), a soil breaking body (41) which extends from near the skirt of the ridge shoulder to below the root vegetable body (Wa) is provided. A sheet turning assisting device (42) is provided near the skirt of the ridge shoulder at a position immediately in front of the cut-off body (41) to freely turn the hem of the multi-seat (F) hung on the ridge for easy turning. The root crop harvester according to any one of claims 1 to 5, which is deployed. The root crop harvesting machine according to claim 6, wherein a guide member (46) is provided from the sheet turning aid (42) to the soil breaking body (41).

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