JP3140952U - Rhizome crop harvester - Google Patents

Abstract

In a harvesting machine that pulls out and transports a rhizome crop planted in a field covered with a film sheet, the film sheet is lifted so as not to be wound around a conveyor section.
SOLUTION: A film sheet pressing roller 30 provided on the left and right sides of the drawing conveyance conveyor sandwiching start end portion and a gauge ring 31 for stabilizing the height of the start end portion, the film sheet pressing roller 30 being positioned on the left and right sides of the sandwiching start end portion. The gauge ring 31 is disposed in front of the film-sheet pressing roller 30 on the harvested side, and from the front part to the outer periphery of the gauge ring 31 from the front side. A rhizome crop harvesting machine provided with a front film sheet pressing member 31a that is curved downward along and further extended rearward.
[Selection] Figure 4

Description

  The present invention relates to a harvesting machine provided with a pulling conveyer for holding and pulling and harvesting the foliage of an underground stem crop planted in a field basket covered with a film sheet.

Japanese Patent No. 3378425 (Prior Art 1) “Root Vegetable Harvester” is known as a conventional technique for harvesting machines such as rhizome crops equipped with this kind of pulling conveyor. For this, “the film sheet (S) floats in the vicinity of the front end portion of the sandwiching and conveying device (11), acting on the lateral side of the row of cultivation holes of the film sheet (S) covered with the farm field. A sheet winding prevention guide (30) that prevents the sheet from being caught in the holding and conveying device (11) is provided at a position in front of the holding start end of the holding and conveying device (11) and a holding start end of the holding and conveying device (11). There is a description of the root vegetable harvester that is "located in the rear part".
Japanese Patent No. 3378425 (Prior Art 1)

  When harvesting is carried out in a harvesting machine equipped with a pull-out conveyor that picks up and removes the foliage of underground stem crops, etc. planted in multiple strips in a field covered with film sheets, it is planted in multiple strips on a single basket. If you try to work while removing the next unharvested strip before working to avoid digging the harvested crops one by one and removing the harvested strip's film sheet more than necessary in the vehicle running section, It is necessary to cut and separate the film sheet from the unharvested side. In addition, when there is a film sheet, the film sheet is caught and hindered when a root cutting blade that extends from the drawing conveyor frame and passes through the lower part of the underground stem crops passes. For this reason, during the harvesting operation, the film sheet is cut while being cut with a sheet cutter in the traveling direction into the already harvested land side and the unharvested land side.

  At this time, when the leaf and leaf portion extending from the hole opened in the film sheet is nipped and pulled out, the bulb portion interferes with the hole and the film sheet is lifted up, and the trouble is caused such that the film sheet is drawn into the draw-out conveyor unit and wound. There was a case. For this reason, as in the prior art 1, a holding member for a film sheet is provided on the side of the holding start end of the drawing and conveying conveyor. However, the end side of the film sheet cut by the sheet cutter is easy to be pulled because there is no pressing, and the film sheet is lifted off from the pressing member by being rolled up during digging work, etc. There was a problem such as winding.

  Therefore, the purpose of the present invention is to eliminate the problem of film sheet wrapping around the conveyor conveyor in a harvesting machine that pulls out and transports a rhizome crop planted in a field covered with a film sheet by pulling it out by a conveyor. It is intended.

  In order to solve the above-mentioned problems, a rhizome crop harvesting apparatus provided with a rhizome crop harvesting device planted in a field covered with a film sheet, and provided with a sheet cutter that cuts the film sheet in the traveling direction as the aircraft progresses. In the machine, the harvesting device includes a pulling and conveying conveyor unit that picks up and removes a foliage portion of a crop planted in a field by a pair of left and right belt conveyors that are obliquely inclined backward from the front to the rear, A root cutting blade that is provided near the start end and passes through the lower part of the rhizome crops in the soil to soften the surrounding soil and cut a part of the root, and a film sheet provided on the left and right of the start end of the draw conveyor conveyor A holding roller and a gauge ring that stabilizes the height of the leading end of the drawing and conveying conveyor, and the film sheet pressing roller includes a drawing and conveying roller. It is located on the left and right of the bear clamping start end, and is arranged at the same position as the drawing conveyance conveyor clamping start end or at the front and rear locations, and the gauge wheel is arranged in front of the film sheet pressing roller on the harvested side, A rhizome crop is characterized in that a front film sheet pressing member is provided on the side surface of the gauge ring so as to be curved downward from the front part of the gauge ring along the outer circumference of the gauge ring and further extended rearward. Propose a harvesting machine.

  The film sheet pressing roller is rotatable up and down around a horizontal axis orthogonal to the traveling direction, and the film sheet pressing roller located at the rear end of the drawing and conveying conveyor clamping end is positioned at the front position. The rhizome crop harvesting machine described in the above-mentioned column 0006 is proposed, which is located on the side of the holding and conveying conveyor sandwiched from the sheet pressing roller.

  According to this device, the film sheet pressing rollers are located on the left and right sides of the drawing and conveying conveyor clamping start end, and are arranged at the same position as the drawing and conveying conveyor clamping starting end, or at the front and rear positions, respectively, so that the crop can be pulled out. Even if the root is caught in the film sheet, the film sheet can be prevented from being lifted by securely holding the four sides. The gauge ring is disposed in front of the film sheet pressing roller on the already harvested side, and is curved downward along the outer circumference of the gauge ring from the front part of the gauge ring to the side part of the gauge ring and further extended rearward. By providing the front film sheet pressing member configured as described above, the film sheet on the side without the press on the harvested side that has been cut by the sheet cutter is widely pressed from the front away from the pulling portion to the pulling portion at the rear. Therefore, it is possible to prevent roll-up and the like, the film sheet pressing roller works reliably, and the film sheet on the side without the already-harvested side can be prevented from being dragged up and prevented from being caught in the draw-out conveyor section. The digging work can be performed efficiently. In addition, the structure is simple and the cost can be reduced without increasing the cost.

  Furthermore, if the film sheet pressing roller is configured to be rotatable up and down around a horizontal axis orthogonal to the traveling direction, the film sheet can always be pressed to follow the unevenness of the field, and the pulling conveyor conveyer sandwiching start rear end portion Because the film sheet pressing roller located at the location is positioned closer to the drawing conveyor conveyer sandwiching center side than the film sheet pressing roller located at the front location, it is possible to press the film sheet on the outer periphery closer to the harvested crop to be pulled out Further, the film sheet is not lifted, and it is possible to prevent the film sheet from being wound on the drawing conveyor.

  Embodiments of the present invention will be described below with reference to the drawings. 1 is a side view of a rhizome crop harvester embodying the present invention, FIG. 2 is also a plan view, FIG. 3 is also a rear view, FIG. 4 is a plan view of the main part of the pulling and conveying conveyor holding end, and FIG. Fig. 6 is a plan view of the underground stem receiving portion and the hair root cutting portion, Fig. 7 is a side view of the hair root cutting portion, and Fig. 8 is a rear view showing the hair root gripping portion of the hair root cutting portion. FIG. 9 is a front sectional view showing the positional relationship between the gauge ring and the film sheet pressing roller, and FIG. 10 is a side view of the main part of the sheet cutter.

  A rhizome crop harvester according to one embodiment of the present invention includes a self-propelled vehicle body 1, a cockpit 2, an operation device 3, a rhizome crop harvesting device 4, and an operator riding section 5. ing. The self-propelled vehicle body 1 is self-propelled by the crawler device 1 a and travels by the pilot of the pilot sitting in the cockpit 2. The operator operates the operation device 3 to activate the harvesting device 4.

  The harvesting device 4 conveys the rhizome crop C provided in the drawing and conveying conveyor unit 6, the root conveying blade 6 provided in the vicinity of the starting end of the drawing and conveying conveyor unit 6, and the pulling and conveying unit 6 provided obliquely upward and downward. On the way, the foliage cutting part 8 that cuts and separates the foliage part L and the foliage stem part U of the rhizome crop C, the underground stem receiving part 9 provided below the foliage part cutting part 8, and the underground stem part U are moved so as to be mounted. The root moving part 10a and the hair root cutting part 10 which has the hair root stem cutting blade 10b and the hair root grasping part 10c which cut | disconnect the hair root part R and the stem S from the underground stem part U to be made, the cutting part storage container 14, and the receiving part storage container 15 And provide.

  The worker's riding section 5 is composed of a seat. In this embodiment, the seat includes two seats arranged in a direction orthogonal to the traveling direction, and is provided adjacent to the bulb moving body 10a of the follicle cutting unit 10 and facing the traveling direction.

  The pulling and conveying conveyor unit 6 is disposed obliquely with a pair of left and right elastic endless belts 6a and 6a positioned at the front upstream side at the bottom and the rear downstream side at the top, and the left and right elastic endless belts 6a and 6a are at the rear top The drive sprockets 6b and 6b located at the front and the driven sprockets 6c and 6c located at the lower front part are spanned to face each other from the left and right and move from the front lower part to the rear upper part to rotate endlessly. At the tip of the drawing / conveying conveyor section 6, a foliage guide 13 having a shape in which the front is opened in a C-shape toward the drawing / conveying apparatus holding start end 6 d is provided.

  A root cutting blade 7 is provided in the vicinity of the starting end of the drawing / conveying section 6. The root cutting blade 7 is stretched around the tip of a root cutting frame 7a that is pivotally supported by the frame of the drawing and conveying conveyor unit 6 so as to be rotatable in the front-rear direction, and is L-shaped in a front view. It is made to pass through the lower part of the rhizome crop C in the soil, and is swung back and forth to swell and soften the soil around the rhizome and cut a part of the root.

  The foliage cutting unit 8 provided in the frame of the drawing and conveying conveyor unit 6 is composed of two opposing circular rotary cutters 8a and 8a provided in the lower part of the frame of the drawing and conveying conveyor unit 6, and is rotated in the reverse direction to be conveyed. The coming rhizome crop C is cut and separated into the foliage portion L and the rhizome portion U of the rhizome crop C in the middle of conveyance.

  A leaflet 11 made of an endless chain conveyor is provided at a position that becomes the downstream end at the upper end of the drawing and conveying conveyor unit 6. The leaflet body 11 is provided with the upstream end portion of the endless chain conveyor adjacent to the downstream end portion of the pulling and conveying conveyor portion 6, and only the leaf portion L cut by the leaf portion cutting portion 8 is hooked. 11 is discharged from a leaf chute 12 connected to the downstream end of the leaf 11.

  A sheet that is positioned behind the leading end of the pulling and conveying conveyor 6 in the direction of travel and on the unharvested crop side of the pinching part of the foliage and that cuts the film sheet F covering the crop planting ridge G in the direction of travel as the machine progresses. A cutter 20 is provided on a drawing / conveying conveyor frame 6e that constitutes the drawing / conveying conveyor section 6.

  The sheet cutter 20 is composed of a vertical disk with a sharp outer periphery freely rotatable by a horizontal cutter rotating shaft 20a orthogonal to the traveling direction. In this embodiment, the sheet cutter 20 is advanced by a drive motor 20b. The film sheet F is configured to be forcibly driven to rotate forward at a speed higher than the speed so as to penetrate the outer periphery of the tip into the soil and cut the film sheet F. Cutting can also be performed by rotating without forced driving.

  The sheet cutter 20 is provided so as to be swingable up and down and left and right by a swing arm 22 with respect to the drawing and conveying conveyor frame 6e. The connecting portion of one end of the swing arm 22 to the drawing / conveying conveyor frame 6e is connected via a swinging member 22c swinging up and down and left and right by a vertical left and right rotation shaft 22a and a horizontal vertical rotation shaft 22b. The swing arm 22 can swing up and down and left and right, and a sheet cutter 20 is provided at the other end.

  A spring 24 is provided between the swinging member 22c of the swing arm 22 and the sheet cutter 20 to urge the swing arm 22 downward. The spring 24 is attached to the pulling / conveying conveyor frame 6e and the swing arm 22. One end of the support rod 23 is slidable in the axial direction with respect to the swing arm 22, and the spring 24 is expanded and contracted to urge the swing arm 22. . Thereby, the sheet cutter 20 follows the unevenness of the field and the rolling of the vehicle body and cuts the film sheet F.

  In this embodiment, the rhizome receiving part 9 is composed of a belt conveyor, and moves at a speed lower than the speed of the bulb moving body 10a adjacent in parallel to the direction orthogonal to the traveling direction. The bulb moving body 10a of the hair root cutting unit 10 is aligned with the chain conveyor 101 provided in the approximate center of the horizontally long frame 100 adjacent to the underground stem receiving unit 9 formed of a belt conveyor in the traveling direction of the chain conveyor 101. A large number of buckets 102 are attached.

  Each bucket 102 includes a root plate 103 and an auxiliary plate 104 provided to face the left and right of the chain conveyor 101 in the traveling direction. As shown in FIG. 6, each root plate 103 is formed of a plate-like body having a recessed central portion on the upper surface. Each auxiliary plate 104 is formed of an oblique plate-like body having a horizontal portion provided at a corresponding position of each root plate 103.

  The chain conveyor 101 is stretched between moving body sprockets 105 having a rotation axis in the horizontal direction provided at the left and right frame positions with respect to the traveling direction of the traveling vehicle, and rotates endlessly up and down. The moving speed of the chain conveyor 101 moves at a speed faster than the moving speed of the belt conveyor which is the underground stem receiving portion 9.

  The hair root cutting blade 10b of the hair root cutting unit 10 includes a hair root cutter 106 and a stem cutter 107, which are rotary circular blades provided on the left and right sides of the downstream side of the chain conveyor 101. The hair root cutter 106 is provided adjacent to the outer side of the root placement plate 103 side on the root placement plate 103 side of the bucket 102, and is provided on the downstream side of the stem cutter 107. The stem cutter 107 is provided on the auxiliary plate 104 side of the bucket 102 on the outer side of the auxiliary plate 104 side, and is provided on the upstream side of the follicle cutter 106. In another embodiment, the position of the hair root cutter 106 may be provided on the right side in the traveling direction of the chain conveyor 101. In this case, the root placement plate 103 is also provided on the same side.

  As shown in FIG. 8, the follicle gripping portion 10c of the follicle cutting portion 10 is stretched endlessly between the gripping chain sprockets 109 so that a pair of upper and lower follicle gripping chains 108 and 108 are crimped to each other vertically. Each hair root gripping chain 108 is provided with a large number of plate-like gripping members 109 having concave and convex teeth toward the outside in the chain traveling direction. The upper and lower gripping members 109 are formed by upper and lower hair root gripping chains 108 and 108. It is provided so as to be engaged and crimped at the portion to be crimped.

  The pair of upper and lower follicle gripping chains 108 and 108 of the follicle gripping portion 10c move in the same direction as the traveling direction of the chain conveyor 101 of the bulb moving body 10a at the crimping portion, but the upstream side moves the follicle portion conveyed up and down. It is a structure that gradually narrows from an appropriate width so that it can be easily pinched. Reference numeral 110 denotes a leaf spring that assists the engagement of the gripping member 109 by pressing the upper traveling side of the lower hair root gripping chain 108 upward from the inside.

  As shown in FIG. 6, the follicle gripping part 10c of the follicle cutting part 10 is provided so that the downstream side from the upstream side in the plan view gradually separates from the chain conveyor 101 of the bulb moving body 10a. Reference numeral 112 denotes a drive motor for the hair root cutting part. The follicle cutting unit 10 is provided so that a follicle cutting unit drive motor 112, which is a driving device thereof, is driven independently of the drawing and conveying conveyor unit 6 and the traveling unit of the traveling vehicle body 1.

  The cutting portion storage container 14 is a box-like body having an open upper surface placed below the most downstream side of the bulb moving body 10a of the hair root cutting portion 10, and is provided in a foldable manner on the vehicle body 1 so as to be opened and in a horizontal state. It is detachably mounted on the mounting plate 16 supported by the above.

  The receiving part storage container 15 is a box-like body having an open upper surface placed below the most downstream side of the underground stem receiving part 9 made of a belt conveyor, and is provided in a foldable manner on the vehicle body 1 so as to be opened and in a horizontal state. It is detachably mounted on the mounting plate 16 supported by the above. The mounting plate 16 is provided with a mounting plate folding portion 16a that can be opened and closed in the lateral direction of the traveling direction, and the width of the mounting plate 16 can be expanded.

  A drawing sheet conveyer holding start end 6d at the front end of the drawing and conveying conveyor unit 6 is provided with a film sheet pressing member 30 and is lifted by a rhizome crop that is nipped by the drawing and conveying conveyor unit 6 and pulled upward. Press down the film sheet F.

  In the present invention, as shown in FIG. 4, the film sheet pressing member 30 is composed of two pressing rollers 30 a and 30 a provided on both sides of the drawing and conveying conveyor clamping start end portion 6 d of the drawing and conveying conveyor unit 6. The pressing rollers 30a are respectively held on the drawing / conveying conveyor frame 6e by a roller arm 30b so as to be rotatable up and down. One end of the roller arm 30b is rotatably held on the drawing / conveying conveyor frame 6e by a horizontal rotation shaft orthogonal to the traveling direction, and a pressing roller 30a is rotatably held on the other end. When the drawing roller conveyor frame 6e moves up and down as the pressing roller 30a moves up and down, the film sheet F is pressed down following the unevenness of the ridge G. The pressing roller 30a of the present invention hangs downward by its own weight and presses the film sheet F, but may be structured to be biased downward by a spring or the like.

  In the present embodiment, the two pressing rollers 30a and 30a provided on the both sides of the drawing and conveying conveyor clamping start end 6d are arranged in the same position at the front and rear positions of the holding roller 30a and 30a on the front side. At the same time, the pressing roller on the rear side is located on the side of the holding and conveying conveyor pinching from the front side in the left-right direction. Thereby, since it can hold | suppress so that the right and left and the back side of the rhizome crop to be pulled out may be enclosed, the lift of a film sheet is prevented reliably.

  A gauge ring 31 is provided in front of the pulling and conveying conveyor unit 6 to stabilize the height of the foliage pinching, and the height is stabilized while rolling on the upper surface of the ridge G, and the film sheet F is lifted up. The sheet is pressed at a front position away from the sheet pressing member 30 and is prevented together with the film sheet pressing member 30. Further, a front film sheet pressing member 31a configured to be bent downward along the outer periphery of the gauge wheel 31 from the front part of the gauge wheel 31 and to extend rearward is provided on the side surface of the gauge wheel 31. The film sheet is pressed over a wide range from the ring 31 side to the rear film sheet pressing member 30 side. The front film sheet pressing member 31a can also prevent problems such as wind of the end of the film sheet F cut in the previous process.

  The gauge wheel 31 is rotatably provided at one end of the gauge wheel rotating arm 31b, and the other end side is provided on the drawing / conveying conveyor frame 6e so as to be rotatable and fixed up and down so that the vertical position can be adjusted. Moreover, since it exists in the position which can be visually recognized from the cockpit 2, the sinking | falling of a gauge wheel 31 and a lift can be confirmed easily. The front film sheet pressing member 31a is fixedly provided on the gauge wheel rotating arm 31b. If the pressing force is set smaller than that of the rear film sheet pressing member 30, the film sheet F is not dragged.

  FIG. 9 is a front sectional view showing the positional relationship during the operation of the gauge wheel 31 and the film sheet pressing roller 30a, and is shown together with the rhizome crops C planted on the ridge G. The foremost gauge ring 31 is located on the end side of the film sheet F cut in the previous process on the already harvested side, and located on the left and right sides of the rhizome crop from which the pressing roller 30a of the film sheet pressing member 30 is pulled out. Then, the film sheet F is pressed. The sheet cutter 20 that cuts and separates the film sheet F after harvesting from the unharvested side is located at the rear side.

  Next, the operation of the rhizome crop harvester, which is one embodiment of the present invention, will be described. The vehicle body 1 that can be driven by the operation of the operator sitting in the cockpit 2 drives the crawler device 1a and travels, and the operator operates the operation device 3 to activate the harvesting device 5. An operator who processes the harvest on the vehicle sits on the seat 5 in the traveling direction. In this embodiment, two left and right seats 5 are provided, and work by two people is possible.

  When the vehicle body 1 is run in the direction of arrow A, the harvesting device 4 is operated, and the gauge ring 31 at the front end is positioned on the upper surface of the basket, the root cutting blade 7 that is provided in the front part of the draw-out conveyor unit 6 and is located in the soil While swinging back and forth, the soil in the vicinity of the rhizome part U of the rhizome crop C is swelled and softened and the lower part of the hair root part R is cut. The foliage portion L of the rhizome crop C is guided by the foliage guide 13 and is pulled out between the opposing surfaces of the pair of left and right elastic endless belts 6a, 6a of the rotating pulling and conveying conveyor portion 6, and obliquely up and rearward while being pinched It is conveyed to. At this time, since the film sheet F is securely pressed by the gauge ring 31, the front film sheet pressing member 31a, and the film sheet pressing member 30, it is not pulled up and caught in the drawing / conveying conveyor section 6.

  The rhizome crop C conveyed obliquely upward and rearward enters between the cutters 8a of the foliage cutting section 8 provided in the reverse direction and is cut into the foliage L and the rhizome U. The cut rhizome part U falls as it is and falls onto the belt conveyor which is the rhizome receiving part 9. The foliage portion L from which the underground stem portion U has been cut is conveyed obliquely upward, caught on the endless rotating chain 11 which is the leaflet 11, and dropped onto the leaflet chute 12 on the downstream side and discharged to the field.

  Since the underground stem U that has fallen on the underground stem receiving portion 9 moves slowly by the movement of the belt conveyor, the underground stem U that successively falls in the same place does not accumulate. The slowly moving rhizome part U is supplied and placed on the bucket 102 of the follicle cutting part 10 by two workers sitting on the seat 5 which is the riding part.

  Each underground stem portion U is placed on the bucket 102 with its orientation determined in order to place the hair root portion R in the central recess of the root placement plate 103 of the bucket 102 and the stem S remaining on the valve B on the auxiliary plate 104 side. In this state, when the chain conveyor 101 moves to reach the hair root cutting blade 10b, the stem S and the valve B are cut by the stem cutter 107, and the space between the hair root portion R and the valve B is cut by the hair root cutter 106. At this time, the hair root portion R is sandwiched between the hair root gripping chains 108 of the hair root gripping portion 10c before being cut by the hair root cutter 106, but the hair root gripping chain 108 is upstream in the plan view as shown in FIG. Since the downstream side is provided so as to gradually move away from the chain conveyor 101 of the bulb moving body 10a, the root portion R is pulled in the traveling direction of the traveling vehicle, so that the cutting is more reliable and the bottom surface of the valve B is rooted. The hair root portion R is cut at a position close to the bottom surface of the valve B because it is pulled toward the mounting plate 103 and approaches the hair root cutter 106.

  The valve B from which the stem S and the hair root portion R are cut is transported while being placed on the bucket 102 and is dropped and stored in the cut portion storage container 13 on the downstream side.

  Of the underground stem U that has fallen to the underground stem receiving portion 9, the underground stem U that was not taken by the operator during the movement of the belt conveyor is dropped and stored in the receiving portion storage container 14 located on the lower downstream side of the belt conveyor. The The untreated rhizome part U that has fallen into the receiving part storage container 14 may be processed by operating only the follicle treatment part 10 again after completion of the digging work, or in a different process of another time or another place. It is possible to remove hair roots and the like.

  A sheet cutter 20 positioned on the side of the uncrawler side of the crawler apparatus 1a cuts and separates the film sheet F that has been harvested simultaneously with the harvesting operation from the unharvested side. As a result, it is possible to work while removing the next unstriped strip before working so that the film sheet of the harvested strip is not crushed more than necessary in the vehicle running part, and it is pulled out when harvesting the next strip When passing the root cutting blade 7 extended from the conveyor frame 6e and positioned in the soil, the film sheet can be prevented from being caught and work can be performed efficiently.

  This device may be used in a harvester for a rhizome crop that harvests a rhizome crop such as garlic planted in a field basket covered with a film sheet, while traveling by a traveling vehicle body. The present invention can be used even if the vehicle body 1 that can travel is a walking type harvester that does not have the cockpit 2.

The side view of the rhizome crop harvester which implemented this invention. The top view of the rhizome crop harvester which implemented this invention. The rear view of the rhizome crop harvester which implemented this invention. The principal part top view of a drawing conveyance conveyor clamping start end part. The principal part side view of a drawing conveyance conveyor clamping start end part. The top view of a rhizome receiving part and a hair root cutting part. The side view of a hair root cutting part. The rear view which showed the hair root grip part of a hair root cutting part. Front sectional drawing which showed the positional relationship of a gauge ring and a film sheet pressing roller. Side view of main parts of sheet cutter

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Vehicle body which can be traveled 1a Crawler device 2 Pilot's seat 3 Operation device 4 Harvesting device 5 Worker's riding part (seat)
6 Pulling and Conveying Unit 6a Elastic Endless Belt 6b Drive Sprocket 6c Driven Sprocket 6d Pulling and Conveying Device Nipping Start End 6e Pulling and Conveying Frame 7 Root Cutting Blade 7a Root Cutting Frame 8 Foliage Cutting Section 8a Cutter 9 Underground Stem Receiving Section 10 Hair Root Cutting Section 10a Bulb moving body (endless chain conveyor)
DESCRIPTION OF SYMBOLS 100 Frame 101 Chain conveyor 102 Bucket 103 Rooting plate 104 Auxiliary plate 105 Sprocket 10b Hair root cutting blade 106 Hair root cutter 107 Stem cutter 10c Hair root gripping part 108 Grasping part chain conveyor 109 Grasping member 110 Grasping part sprocket 111 Leaf spring 112 Hair root cutting part Drive motor 11 Leaflet (endless chain conveyor)
12 Leaflet chute 13 Stem and leaf guide 14 Cutting portion storage container 15 Receiving portion storage container 16 Placement plate 16a Placement plate folding portion 20 Sheet cutter 20a Cutter rotation shaft 20b Drive motor 22 Swing arm 22a Left and right rotation shaft 22b Vertical rotation Moving shaft 22c Oscillating member 23 Support rod 24 Spring 30 Film sheet pressing member 30a Pressing roller 30b Roller arm 31 Gauge ring 31a Front film sheet pressing member 31b Gauge ring rotating arm C Rhizome crop U Underground stem R Hair root B B Valve S Stem L Foliage F Film Sheet G

Claims (2)

In a rhizome crop harvester provided with a harvesting device for rhizome crops planted in a field covered with a film sheet, and provided with a sheet cutter that cuts the film sheet in the direction of travel as the aircraft progresses,
The harvesting device includes a pulling conveyor unit for picking up and removing a foliage portion of a crop planted in a field by a pair of left and right belt conveyors diagonally inclined from the front to the rear, and in the vicinity of the leading end of the pulling conveyor A root cutting blade which passes through the lower part of the rhizome crop in the soil and softens the surrounding soil and cuts a part of the root, and a film sheet pressing roller provided on the left and right of the pulling conveyor conveyer sandwiching end , Having a gauge ring that stabilizes the height of the leading end of the drawing conveyor
The film sheet pressing rollers are located on the left and right sides of the drawing conveyance conveyor clamping start end, and are respectively disposed at the same position as the drawing conveyance conveyor clamping starting end, or at the front and rear positions. A front film sheet pressing member is provided that is disposed in front of the roller and is curved downward along the outer periphery of the gauge ring from the front part of the gauge ring and further extended rearward on the side surface of the gauge ring. A rhizome crop harvester characterized by   The film sheet pressing roller can be rotated up and down around a horizontal axis orthogonal to the traveling direction, and the film sheet pressing roller located at the rear end of the drawing and conveying conveyor clamping end is positioned at the front position. 2. The rhizome crop harvester according to claim 1, wherein the harvester is located closer to the center of the drawing and conveying conveyor than the roller.

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