JP2008182902A - Plant foliage reaper - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a plant foliage reaper which can sufficiently reap even foliages of green leaf plants and can avoid trampling the plants down or biting the roots of the plants without cutting the foliages. <P>SOLUTION: In the plant foliage reaper having a reaping mechanism for raising up the foliages of plants planted in a traveling direction by the rotation of a raising-up reel 1 and for reaping the foliages with reaping blades 2, the raising-up reel 1 has tines 11 capable of being rotated around a horizontal rotation axis in the width direction crossing the traveling direction, and a plurality of lifting pawl portions 12 hung from the outer periphery of the tine 11 via lifting pawl-holding plates and arranged at a prescribed phase angle interval. The reaping blades 2 are disposed just under the lowest positions of the lifting pawl portions 12 or in front thereof. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a plant leaf stem reaper for cutting leaf stems of plants (particularly green leaf plants).

Combine harvests aimed at harvesting mature cereals are those that cause crops such as soybeans, wheat, and rice from the field to thresh, and have various harvesting methods. For example, there is a system in which a crop is raised by a reel type device, conveyed to a mowing and threshing unit, and threshed (for example, see Patent Document 1). In addition, there is a method of carrying out threshing by conveying only the tip portion in order to acquire the grain after causing the crop and cutting. In addition, there are combine harvesters that collect and store grass that has been left in the field after cutting.
JP-A-10-127137

  However, the conventional combine is intended to harvest cereals in general, and is not designed for cutting the leaf stems of green leaf plants.

  Here, the leaf stem of the green leaf plant is soft and easy to stick to the general grain. For this reason, if a machine for harvesting soybeans is used as it is for cutting the leaf stems of a green leaf plant, the cutting is insufficient, and the leaf stems are stepped down without being cut or root biting occurs.

  Therefore, in the present invention, even the leaf stems of a soft and easy-to-get green leaf plant can be sufficiently cut, and the leaf stems are prevented from being stepped down without being cut or root biting. It is an object of the present invention to provide a turf leaf stem mower.

  In order to solve the above problems, the present invention takes the following means (1) to (6).

(1) That is, the plant leaf stem reaper of the present invention is:
A plant leaf and stem reaper having a cutting mechanism that induces the leaf stems of the plant to be vegetated in the running direction by causing the reel 1 to rotate and guiding it to the cutting blade 2 side, and cutting by the cutting blade 2;
The pull-up reel 1 is suspended from a tine 11 that can rotate around a horizontal rotation axis in the width direction intersecting the traveling direction, and is suspended from the outer periphery of the tine 11 via a raised claw holding plate, with a predetermined phase angle. It has the several raising nail | claw part 12 arranged in a line. And the said cutting blade 2 is arrange | positioned just under the lowest position of the said raising nail | claw part 12, or ahead of this, It is characterized by the above-mentioned.

  Thereby, the re-lowering point adjustment of the raising claw part 12 and the clearance adjustment of the cutting blade 2 correspond to the young leaves of early-ripening leaf stems having a low plant height, and even the leaf stems of green leaf plants that are soft and easy to cut are cut. The obtained leaf stem can be smoothly fed into a transport mechanism such as a transport auger.

  (2) In the plant leaf and stem reaper, the raising reel 1 includes a tine support arm 14 that rotatably supports the tine 11 with a horizontal support portion that extends horizontally. It is preferable that the support position of the tines 11 can be adjusted back and forth within the support portion.

  If it is such, when the position of the raising nail | claw part 12 is adjusted back and forth, the height in the lowest position of the raising nail | claw part 12 suspended by the tine 11, ie, the clearance with the cutting blade 2, is made constant. Can keep.

  (3) In any one of the above-described plant leaf and stem reapers, the reaping mechanism includes a leveling plate 3 in which at least one of the front end portion and the lower end portion is warped upward at the ground proximity position at the lower rear of the cutting position by the cutting blade 2. It is preferable to comprise.

  If it is such, the field where the warped part of the leveling board 3 warps will contact the leaf stem and the ground immediately after cutting, and the field will be leveled by sliding on the surface of the field. Since the distance between the farm field and the cutting blade 2 is maintained at a predetermined value or more, the cutting blade 2 does not bite the soil, and the leaf stem can be cut at an appropriate cutting height.

  (4) It is preferable that any one of the above-mentioned plant leaf and stem reapers includes a leaf and stem lifting mechanism that lifts the leaf and stem that has been cut by the cutting mechanism to the rear upper part of the cutting position in addition to the cutting mechanism.

  However, this leaf stem advance mechanism includes a scraper auger 4 that scrapes the harvested leaf stem, a feeder conveyor 5 that transports the leaf stems scraped by the scraper auger 4 by a plurality of feeder blades 51, and It has an auxiliary belt conveyor 7 that auxiliaryly conveys leaf stems taken from the feeder conveyor 5 below the feeder conveyor 5 by a conveyor belt 71. The auxiliary belt conveyor 7 is formed by arranging a pair of left and right conveyor upper angles 73 covering the upper portions near both ends of the conveyor belt 71 along the belt direction of the conveyor belt 71.

  For example, as shown in FIG. 2, the feeder conveyor 5 and the auxiliary belt conveyor 7 are configured such that a plurality of feeder blades 51 laid on a conveyor chain 53 rotate around a lower conveyor reel 52 to lower the feeder conveyor 5. The auxiliary belt conveyor 7 travels around the lower conveyor reel 72 and travels backward on the surface side under the feeder conveyor 5. The feeder blade 51 and the conveyor belt 71 have substantially the same width, and the feeder conveyor 5 and the conveyor belt 71 are arranged in parallel from the cutting position at the front lower part to the raising position at the rear upper part while maintaining a predetermined interval. .

  As a result, the cut leaves are first scraped from the outlet of the auger 4 toward the auxiliary belt conveyor 7 by the feeder blade 51. The scraped leaves and stems are continuously pressed against the conveyor belt 71 by the feeder blade 51 and are lifted up by the standing blade portion of the feeder blade 51 that advances. Along with the lifting of the leaves and stems by the feeder blade 51, the leaves and stems are also conveyed by the moving conveyor belt 71. At this time, by synchronizing the traveling speeds of the conveyor belt 71 of the feeder conveyor and the belt conveyor, the leaf stems can be transported smoothly and without being damaged.

  Further, in the vicinity of the belt upper surface of the conveyor belt 71, a conveyor upper angle 73 is disposed close to both ends of the belt (FIGS. 5 and 6). The conveyor upper angle 73 can suppress the shaking of the conveyor belt 71 and can prevent the leaf stem from being bitten through the gap of the conveyor belt 7 due to an excessive conveyance amount. Further, the conveyor upper angle 73 is arranged at the left and right ends of the conveyor belt 71 in the width direction, so that the central portion of the conveyor belt 71 is opened upward, and adjustment work such as belt replacement becomes simple. Furthermore, the conveyor upper angle 73 has an upright plate portion and a saddle plate portion integrated, and this saddle plate portion is disposed between the feeder blade 51 and the conveyor belt 71, so that the feeder blade 51 and the conveyor belt 71 can be connected to each other. Contact is prevented and damage to the conveyor belt 71 is prevented.

  (5) In the plant leaf / stalk trimming machine having the leaf-stem-feeding mechanism, the auxiliary belt conveyor 7 has a pair of left and right conveyor lower angles 74 covering the lower portions near both ends of the conveyor belt 71 and the belt of the conveyor belt 71. It is preferable to arrange | position along a direction.

  Thus, by providing the upper and lower angles at both ends of the belt where the leaf stems are easily clogged, it is possible to efficiently suppress the belt contact of the cut leaf stems near both ends. Further, the conveyor lower angle 74 does not extend over the belt width but is disposed so as to have a lower opening 74b (FIG. 6). For this reason, when the weight of the leaf stem after cutting is applied and the conveyor belt 71 is bent, it is possible to prevent frictional damage of the conveyor belt 71 due to unnecessary contact with the conveyor lower angle 74, and to enable smooth conveyance. Yes. Furthermore, the lower opening 74b provides excellent workability during maintenance such as belt replacement or inspection.

  As an embodiment, for example, the left and right conveyor lower angles 74 project in the width direction by 70 mm each with respect to the belt width of 400 mm of the conveyor belt 71, and the lower part of the width of 260 mm, which is 60% or more of the entire width, at the belt center. By providing the opening 74b, the friction of the conveyor belt 71 is reduced, and clogging of leaf stems after cutting in the frame is eliminated. Further, the conveyor lower angle 74 supports a degree of downward pressure on the conveyor belt 71 by projecting a total width of 140 mm, which is 30% or more of the entire width, in the width direction. Further, even when the conveyor belt 71 is meandering, a state in which the side end of the conveyor belt 71 is closer to the inside than the inner end of the conveyor lower angle 74 is prevented. To be always located.

  (6) In the plant leaf and stem reaper having the conveyor lower angle 74, the conveyor lower angle 74 is formed of an L-shaped angle with a vertical plate portion arranged on the outer side surface. It is preferable to have a cutout portion 74a formed by cutting out.

  The frame can be reinforced by using the L-shaped angle, and an extra frame can be removed, thereby simplifying the structure. For example, as in the prior art, a structure that surrounds the entire auxiliary belt conveyor 7 with a box or the like is not necessarily essential.

  Further, especially near the lower portion of the auxiliary belt conveyor 7, leaf stems after cutting are easily entangled, and troubles such as belt meandering are likely to occur (FIG. 5). For this reason, it is necessary to periodically remove the conveyor reel 72 below the conveyor belt 71 and the leaf stems entangled therewith. The notch 74a to the lower part facilitates this leaf stem removal operation.

  In the present invention, by taking the above-mentioned means, even a leaf leaf stem of a soft and easy-to-get green leaf plant can be sufficiently cut, and the leaf stem is stepped down and root biting occurs without being cut. It is possible to provide a leaf and stem reaper that can prevent this.

  Embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is an explanatory side view showing the overall configuration of the plant leaf stem mower according to Embodiment 1 of the present invention.

  FIG. 2 is a partially enlarged view of FIG. 1 and shows a cutting mechanism of the plant leaf stem reaper of the first embodiment. FIG. 3 is a perspective explanatory view of the mowing mechanism, and FIG. 4 is an explanatory side view for comparing the mowing operation of the mowing mechanism (a) of the present invention and the early-stage type mowing mechanism (b) shown as a comparative example. It is.

  FIG. 5 is a partially enlarged view of FIG. 1, and shows a side view mechanism of the auxiliary belt conveyor 7 in the leaf stem lifting mechanism of the plant leaf stem cutting machine of the first embodiment. FIG. 6 is a perspective explanatory view of the auxiliary belt conveyor 7, the conveyor upper angle 73, and the conveyor lower angle 74. FIG. 7 is a side view explanatory diagram showing an example of the overall configuration of a prototype plant-type leaf and stem reaper. The prototype plant leaf and stem reaper has a tine 11 'having a pentagonal shape in a side view, five lifting claws 1 suspended from the tine, and a slanting lower side behind the lowermost position of the lifting claws 1. And a cutting blade 21 ′ facing.

<Overall Configuration of Plant Leaf and Stalk Mower of the Present Invention (FIG. 1)>
As shown in FIG. 1, the plant leaf stem cutting machine of the present invention causes a leaf stem of a plant to grow on the ground in the traveling direction and cuts the leaf stem, and the cut leaf stem to the upper mouth of the storage tank 9. A leaf stem lifting mechanism B that moves up and a traveling mechanism C that travels in an arbitrary traveling direction are provided.

  The plant leaf stem cutter of the present invention is suitable for cutting green leaves, particularly young leaves such as barley, bare barley, wheat, oats and pearl barley. Leaf stems of green leaf plants, especially wheat, have a leaf length of 10 to 70 cm, and a suitable leaf stem has a leaf length of 20 to 50 cm. Hereinafter, each configuration will be described in detail based on examples.

[A: Mowing mechanism]
The cutting mechanism A includes at least a pulling reel 1, a cutting blade 2, and a leveling plate 3 as a large configuration. This is caused by causing the leaf stems of the plants to be vegetated in the field of the reaper in the traveling direction to be caused by the rotation of the reel 1 and simultaneously guiding the leaf stems to the cutting blade 2 side. And the ground after cutting is leveled by the leveling plate 3. Moreover, it has the tine support arm 14 which supports the tine 11 rotatably.

(Raising reel 1)
The raising reel 1 raises leaf stems that are vegetated in various directions and simultaneously guides them to the cutting blade 2 side. The structure of the pull-up reel 1 includes a tine 11 that can rotate around a horizontal rotation axis in the width direction that intersects the traveling direction, and a predetermined phase angle centered on the horizontal rotation axis that is suspended from the outer periphery of the tine 11. And a plurality of raised claw portions 12 arranged in a row.

(Tyne 11)
The tine 11 is composed of a polygonal rotating body, and is rotatably supported by the tine support arm 14 at the front upper part of the main body. The tine 11 rotates in the forward direction of the traveling direction along with the traveling of the main body. This rotation axis is a horizontal rotation axis in the width direction that intersects the traveling direction. Specifically, it consists of a member framed in the shape of a polygonal rotating body. In this embodiment, it is a regular hexagon, and the interval between the raised claw portions 12, that is, the raised interval is relatively short. This is preferable when cutting an early-ripening green leaf plant having a low plant height.
As an example of the initial prototype, a rotating body having a regular pentagonal shape as shown in FIG. 7 may be used.

(Raised claw part 12)
The lifting claw portions 12 are suspended from the outer periphery of the tine 11 via the lifting claw holding plate 13, and form rows at equal phase intervals around the rotation axis of the tine 11.

  Specifically, as shown in FIG. 3, a plurality of the raised claw portions 12 in each row are arranged in parallel in the width direction on the raised claw holding plate 13 at equal intervals. The ratio of the length of the raised claw holding plate 13 to the claw length of the raised claw portion 12 is 0.5 / 1 to 5/1, preferably 1/1 to 4/1. In this case, the claw length of the raised claw portion Is 20 to 150 mm, preferably 40 to 120 mm.

(Tine support arm 14)
The tine support arm 14 has a horizontal support portion that extends obliquely downward from the front of the driver's seat of the reaper main body, and further extends substantially horizontally forward (FIGS. 1 and 2). A horizontal long hole 15 extending horizontally in the extending direction is provided in the horizontal support portion at the tip as a tine support position adjusting means, and the tine 11 can be rotated at an arbitrary front-rear direction position in the horizontal long hole 15. To support. The supporting position of the tine 11 can be adjusted back and forth.

(Mowing blade 2)
As shown in FIGS. 2 and 3, the cutting blade 2 has a plurality of pointed blade portions 21 on the front side of the pointed blade holding plate 22 that is installed substantially horizontally near the ground with a predetermined setting height h. Fixed at regular intervals. The installation height h of the cutting blade 2 is 20 to 30 mm from the ground (FIG. 2).

  The plurality of pointed blade portions 21 of the cutting blade 2 are disposed so as to be located immediately below or in front of the lowermost position of the lifting claw portion 12. More specifically, during driving, the mounting position of the cutting blade 2 is adjusted so that the lowest point of the raised claw portion 12 is near the root of the sharp blade portion 21 of the cutting blade 2 (FIG. 3). . As a result, as shown in FIG. 4A, the cutting timing by the cutting blade 2 is made earlier than that of the initial prototype showing the comparative example (FIG. 4B) and the cutting position is shown as a comparative example. It shifted to the front side rather than the initial type | mold (FIG.4 (b)). Therefore, cutting can be performed in a state where the leaf claw is pressed by the raised claw portion 12 and the raised claw holding plate 13.

  That is, the cutting blade of the initial prototype (FIG. 4B) shown as a comparative example is such that the lowest point of the claw tip of the raised claw portion comes to the tip of the pointed blade portion 21 ′. In such a positional relationship, at the position where the cutting material is guided to the back (the root of the cutting blade 2 shown in FIG. 3), the lifting claw escapes “upward” behind the rotation of the tines 11 ′. Instead of being sent to the back, it stays on the cutting blade. When the cutting material stays, the retained cutting material interferes with the next leaf stem to be cut and smooth cutting cannot be performed. In addition, the root of a cutting blade means the innermost part of a valley view notch formed in planar view formed between the adjacent pointed blade parts 21 as shown in FIG.

  On the other hand, in the present invention, the position of the cutting blade 2 is shifted forward from the prototype initial type (FIG. 4B) shown as a comparative example, and the position of the lowest point of the lifting claw portion is set to The cutting material is prevented from staying on the cutting blade 2 by being arranged near the root (FIG. 3) near the pointed blade holding plate 22 behind the tip. If the position of the lowest point of the raising claw is at least behind the tip of the pointed blade portion 21, the effect of retention of the cutting material will occur. More specifically, as shown in FIG. 3 or FIG. 4A, it is more preferable to match the root of the sharp blade portion 21 of the cutting blade 2.

  Further, the position of the lowermost point of the lifting claw portion 12 is set so that the lifting claw portion 12 suspended from the tine 11 does not interfere with the rear scraping auger 4 due to the subsequent rotation of the tine 11. It may be adjusted in any section between the front of the base of the sharp blade 21 and the rear of the tip of the sharp blade 21, that is, the front and rear section S shown in FIG.

(Leveling plate 3)
The mowing mechanism includes a leveling plate 3 whose front end is warped upward at a position near the ground at the lower rear of the mowing position by the mowing blade 2. The leveling plate 3 is leveled by leveling the surface of the field after cutting up by grounding the bottom surface and sliding on the surface of the field. By using a single large plate, a complicated mechanism such as a conventional slope sensing adjustment mechanism (for montromantic) becomes unnecessary.

[B: Leaf stem lifting mechanism]
The leaf stem lifting mechanism includes a scraping auger 4 that scrapes the harvested leaf stem, a feeder conveyor 5 that transports the leaf stem scraped by the scraping auger 4 to the rear upper portion by a feeder blade 51, and the scraper. An auxiliary belt conveyor 7 that assists in transporting the leaf stems, a feed rotary blade 6 that feeds the leaf stems conveyed by them, a feeding conveyor 8 that feeds the fed leaf stems into the storage tank 9, and a mowing And a storage tank 9 for storing the leaves and stems.

(Scratching auger 4)
The scraping auger 4 is composed of a rotating body having scraping blades around it, and rotates forward to scrape the cut leaves and place them on the feeder conveyor 5 (FIG. 2).

(Feeder conveyor 5)
The feeder conveyor 5 includes a plurality of conveyor reels 52 disposed at least in the front lower part and the rear upper part, a pair of left and right conveyor chains 53 inclined obliquely rearward in a side view by the conveyor reels 52, and the left and right conveyor chains 53. A plurality of feeder blades 51 are installed and fixed at equal intervals therebetween (FIG. 1). The conveyor chain 53 is rotated by the rotation of the conveyor reel 52. Accordingly, as shown in FIG. 2, the feeder blade 51 rotates around the lower conveyor reel 52 and advances the lower surface side of the feeder conveyor 5 rearward and upward as the conveyor chain 53 rotates.

(Feeder blade 51)
As shown in FIG. 1, each feeder blade 51 has an L-shaped cross-section erected in the width direction across the left and right conveyor chains 53. The cross-section L-shaped plate is composed of a setting portion and a standing blade portion. The setting portion of the cross-section L-shaped plate runs along the outer surface of the conveyor chain 53, and the standing blade portion is substantially perpendicular to the conveyor chain 53. Stand up. A plurality of cut portions are provided at equal intervals on the upper side of the standing blade portion, and the upper side of each feeder blade 51 is formed in a comb shape. As the blade height of the standing blade portion, a range of 20 to 120 mm, preferably 40 to 100 mm is adopted in order to transport the cut leaf stems satisfactorily.

  As the comb-like feeder blade 51 advances as the conveyor chain 53 circulates, the cut leaf stem is first scraped from the exit of the scraping auger 4 toward the auxiliary belt conveyor 7, and then the feeder blade 51 leaves the leaf. At the same time as pressing the stem against the lower auxiliary belt conveyor 7 side, the stem is hooked at the notch, and the hooked leaf stem is conveyed to the lifting position at the upper rear of the main body. The drive speed of the conveyor chain is the same as that of the carry belt.

  The feeder blade 51 and the conveyor belt 71 have substantially the same width, and the feeder conveyor 5 and the conveyor belt 71 are arranged in parallel from the cutting position at the front lower part to the lifting position at the rear upper part while maintaining a predetermined interval. The

(Feeding rotary blade 6)
The delivery rotary blade 6 is a free rotating body having a plurality of delivery blades around the horizontal axis, and is arranged behind the feeder conveyor 5 and above the input conveyor 8 as shown in FIG. When the leaf stems after cutting conveyed by the feeder conveyor 5 and the auxiliary belt conveyor 7 come into contact with each other, the feeding rotary blade rotates forward, and the leaf stems after cutting are sent out to the input conveyor 8.

(Auxiliary belt conveyor 7)
The auxiliary belt conveyor 7 is constructed to be inclined obliquely rearward in a side view along the feeding direction of the feeder conveyor 5 below the feeder conveyor 5. Specifically, as shown in FIGS. 5 and 6, an annular plate-shaped conveyor belt 71 is constructed to be inclined obliquely rearward by a conveyor reel 72.

  As shown in FIGS. 1 and 2, the conveyor belt 71 is provided in parallel with the conveyor chain 53 of the feeder conveyor 5 at substantially equal intervals. proceed. The conveyor belt 71 receives the leaf stems scraped by the feeder blade 51 at the lower portion and conveys the leaf stems pressed downward by the feeder blade 51 to the upper rear of the main body together with the feeder blade 51. The conveyor belt 71 can also serve to receive the leaf stems after trimming that have been dropped from the feeder conveyor 5 and to guide the leaf stems after trimming into the storage tank 9 by belt conveyance. At this time, by synchronizing the traveling speed of the conveyor belt 71 of the belt conveyor with the feeder blade 51 of the feeder conveyor 5, the leaf stems can be transported smoothly and without being damaged.

  5 and 6, the auxiliary belt conveyor 7 is provided with a pair of conveyor upper angles 73 covering the upper portions near both ends of the conveyor belt 71 along the belt direction of the conveyor belt 71. A pair of conveyor lower angles 74 covering the lower portions near both ends of 71 are arranged along the belt direction of the conveyor belt 71.

(Conveyor upper angle 73)
The conveyor upper angle 73 is an L-shaped angle in which a vertical plate portion and a vertical plate portion are integrated, and the vertical plate portions of the left and right L-shaped angles in a state of being fixed to a pair of left and right plant leaf and stem reapers. Are arranged on both sides in the width direction, and the thin plate portion is arranged on the center side in the width direction.

  By attaching the L-shaped angle to the upper part, the swing of the conveyor belt 71 can be suppressed, and the cutting leaf stem can be prevented from biting through the belt gap. Further, an angle is provided only near both ends, and the vicinity of the center near the upper surface of the conveyor belt 71 is not covered with an angle or the like.

  The conveyor upper angle 73 is always interposed between the feeder conveyor 5 and the auxiliary belt conveyor 7 to prevent unnecessary interference between the leaves or the stems sandwiched between them. Specifically, the vertical plate portion is interposed between the conveyor chain 53 of the feeder conveyor 5 and the conveyor belt 7 so that the distance from the conveyor chain 53 of the upper feeder conveyor 5 can be maintained at a predetermined value or more. Unnecessary contact between them and clogging of leaves and stems can be prevented. In addition, since the platen portion is interposed between the feeder blade 51 and the conveyor belt 7 of the feeder conveyor 5, the feeder blade 51 is prevented from coming into contact with the conveyor belt 71 and the conveyor belt 71 is prevented from being damaged. It has become.

(Conveyor lower angle 74)
The conveyor lower angle 74 has an L-shaped angle in which the vertical plate portion and the vertical plate portion are integrated, and the vertical plate portion is arranged on the outer side surface, and in the same plane so as to extend inward in the width direction of the vertical plate portion of the L-shaped angle. It consists of the inner extension flat plate of the predetermined width welded by. In front of the standing plate portion, there is a cutout portion 74a having a lower portion cut out in a substantially L shape. The conveyor lower angle 74 is fixed to a pair of left and right plant leaf and stem reamers, with the left and right L-shaped angle standing plates arranged on the outer sides in the width direction, and the inner extension flat plate in the width direction center. Arranged on the side.

  The notch 74a opens the vicinity of the lower conveyor reel 72 where leaf stems are likely to be stored. As a result, the spilled leaf stems are less likely to stay, and the leaf stems entangled with the conveyor reel 72 are easily removed. Furthermore, it is not necessary to remove the angle when replacing the belt, and maintenance work including replacement of the conveyor belt 71 is facilitated. Further, a flat plate having a predetermined width (for example, 30 mm in width) is welded and fixed to each of the L-shaped angle plate portions, thereby supporting the belt central portion when the conveyor belt 71 is bent downward.

  Conventionally, a perforated iron plate is installed so as to cover the entire lower surface of the conveyor belt 71, thereby receiving the load of the conveyor belt 71 (not shown). For this reason, the lower surface of the conveyor belt 71 and the perforated iron plate are rubbed, and the consumption of the conveyor belt 71 is severe. In addition, when the conveyor belt 71 is replaced, it is necessary to remove the perforated iron plate, or when the cut leaf stem is soft, the cut leaf stem is sandwiched between the conveyor belt 71 and the perforated iron plate, and the operation cannot be performed well. I did.

  On the other hand, the conveyor belt 71 is supported near both ends by the conveyor lower angle 74, and it is not necessary to remove the conveyor lower angle 74 when replacing the conveyor belt 71, and the lower opening 74b is formed at the center in the width direction. For this reason, the cutting material does not get jammed (FIG. 6).

(Loading conveyor 8)
The input conveyor 8 is a conveyor that feeds leaves and stems into the storage tank 9, and is installed behind the feeder conveyor 5 and the auxiliary belt conveyor 7 with a slight inclination toward the rear upper side. For example, the auxiliary belt conveyor 7 may be integrally connected and conveyed by the conveyor belt 7 of the auxiliary belt conveyor 7. In addition, a feed rotary blade 6 is provided above the front portion of the input conveyor 8 so as to be freely rotatable.

[C: Traveling mechanism]
The traveling mechanism C is a mechanism that can cause the plant leaf and stem reaper main body to travel in an arbitrary traveling direction. It is assumed that an operation unit is provided on the leaf and stem reaper and is self-propelled.

(Reaping operation)
The operation of the plant leaf and stem reaper having the above configuration is as follows. That is, the leaf stem caused by the rotation of the raising reel 1 of the cutting mechanism A is cut off by the cutting blade 2 immediately after being raised.

  The harvested leaf stem is scraped by the rotating scraping auger 4 and is lifted from the front lower portion to the rear upper portion by the feeder conveyor 5 and the auxiliary belt conveyor 7 of the leaf stem lifting mechanism B. The cut leaf stalk raised to the rear upper part is sent to the input belt conveyor 8 continuously installed behind the auxiliary belt conveyor 7, and is input into the storage tank 9 by the input belt conveyor 8.

  The ground after cutting is automatically leveled by the leveling plate 3. The leveling plate 3 is made of an elastic bent plate that warps forward and is inclined, and its bent portion is positioned only a few millimeters above the ground contact portion of the traveling mechanism C. For this reason, the leveling board 3 is always in contact with the field, and the field surface is smoothed by the elastic reaction force, and at the same time, the cutting blade 2 is prevented from contacting the field and biting the soil.

  The plant leaf and stem reaper of the present invention can be applied to an ordinary reaper such as a combine, and can be used to harvest leaf and stem portions of various crops such as wheat, rice, beans and pasture.

It is side view explanatory drawing which shows the whole structure of the plant leaf stem reaper of Example 1 of this invention. It is the elements on larger scale of FIG. 1 which shows the cutting mechanism of the plant leaf stem reaper of Example 1. FIG. It is a perspective explanatory view showing the cutting mechanism of the plant leaf stem cutter of Example 1. It is side view explanatory drawing which compares the cutting operation of the cutting mechanism (a) of Example 1, and the conventional cutting mechanism (b). It is the elements on larger scale of FIG. 1 which shows the auxiliary | assistant belt conveyor 7 of the plant leaf stem reaper of Example 1. FIG. It is a perspective explanatory view showing auxiliary belt conveyor 7 of the plant foliage reaper of Example 1. It is side view explanatory drawing which shows the example of whole structure of the plant leaf stem reaper shown as a prototype initial type of the comparative example of this invention.

Explanation of symbols

A Cutting mechanism 1 Pulling reel 11 Tine 12 Lifting claw 13 Lifting claw holding plate 14 Tine support arm 15 Horizontal long hole 2 Cutting blade 21 Pointed blade 22 Pointed blade holding plate 3 Leveling plate B Lifting mechanism 4 Scratching auger 5 Feeder Conveyor 51 Feeder blade 52 Conveyor reel 53 Conveyor chain 6 Feeding rotary blade 7 Auxiliary belt conveyor 71 Conveyor belt 72 Conveyor reel 73 Conveyor upper angle 74 Conveyor lower angle 74 a Notch 74 b Lower opening 8 Input belt conveyor 9 Storage tank C Traveling mechanism S Front and rear sections

Claims (6)

  A plant leaf and stem reaping machine having a cutting mechanism that causes a leaf stem of a plant to rotate by the rotation of the reel 1 and cut by the cutting blade 2, wherein the reel 1 is rotated about a rotation axis in the width direction. The tine 11 that can rotate, and a plurality of raised claw portions 12 that are suspended from the outer periphery of the tine 11 and arranged at a predetermined phase angle, the cutting blade 2 includes the raised claw portion A plant leaf and stem reaping machine, which is arranged directly below or in front of the lowermost position of 12.   2. A tine support arm 14 rotatably supporting a tine 11 with a horizontally extending horizontal support portion, and the tine support arm 14 is capable of adjusting the support position of the tine 11 back and forth within the horizontal support portion. The plant leaf stem mower.   The plant leaf stem according to claim 1 or 2, wherein the mowing mechanism includes a leveling plate 3 in which at least one of the front end portion and the rear end portion is warped upward at a position near the ground at the lower rear portion of the mowing position by the mowing blade 2. Mower.   In addition to the mowing mechanism, a plant leaf stem mowing machine comprising a leaf stem lifting mechanism that raises the leaf stems cut by the cutting mechanism to the rear upper part of the cutting position. A scraping auger 4 that scrapes the stem, a feeder conveyor 5 that transports the leaf stems scraped by the scraping auger 4, and a leaf belt that has been zeroed out of the feeder conveyor 5 below the feeder conveyor 5 is a conveyor belt 71. The auxiliary belt conveyor 7 has a pair of conveyor upper angles 73 covering the upper portions near both ends of the conveyor belt 71 along the belt direction of the conveyor belt 71. A plant leaf and stem reaper according to any one of claims 1, 2, and 3.   5. The plant leaf and stem reaper according to claim 4, wherein the auxiliary belt conveyor includes a pair of conveyor lower angles that cover the lower portions near both ends of the conveyor belt along the belt direction of the conveyor belt.   6. The plant leaf and stem reaper according to claim 5, wherein the conveyor lower angle is an L-shaped angle having a standing plate portion on the outer side surface, and has a notch portion 74a having a lower portion notched in front of the standing plate portion.

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