JPH03103114A - Harvesting machine for ginger, etc. - Google Patents

Abstract

PURPOSE:To disentangle the dense and entangled stem straws of crops and orderly feed the stem straws into the feed starting section of pulling belts by cutting and releasing the stem straws of the crops raked with a raking device at a place in the front of the pulling belts. CONSTITUTION:Raking wheels are rotated in the direction of the arrows C to orderly rake the stem straws of crops toward the feed starting section of the pulling belts 3A and 3B of a pulling device. Before nipped with the pulling belts 3A and 3B, the stem straws are cut with a cutter 83 at a place above the belts and the cut stem straws are guided and released toward one outer side with a stem-guiding device having a bottom plate 96 and a guiding plate 98.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a harvesting machine that pulls out and harvests crops such as live crops from a field.

(Prior Art) As a technique for harvesting crops growing in a field, for example, there is a technique disclosed in JP-A-60-137207.

In this prior art 1, a pulling device consisting of a pulling belt with an upward slope at the rear is installed in an example part of the traveling machine, and the stems and leaves of bulbous vegetables are pinched and pulled out from the ground to be transported rearward and upward, and in preparation for the latter half of the transport. The stems and leaves were cut with a sharp cutting blade.

It was also used as a harvester for fresh onions, onions, etc.
There is a technique disclosed in Japanese Patent No. 173021.

This prior art 2 is equipped with a pulling conveyor that supports and pulls the foliage upward, a cutter for cutting the foliage is provided on the upper part of the conveyor, and a chute for discharging the foliage is provided at the rear of the cutter. there were.

(Problems to be Solved by the Invention) Since the prior art l is equipped with a cutting blade in the latter half of transportation, until it is cut with this cutting blade, it is necessary to cut bulbs, onions, etc., which have long stems and leaves. In the case of crops, if cutting tying is delayed and there is entanglement of stems, leaves, etc., it is difficult to pinch the crop in an aligned manner with the pull-out bell 1, which causes poor cutting or malfunction.

Conventional example 2 has a cutter in the front half of the conveyor, so
Although problem 1 of the conventional example has been solved, since cutting is carried out while supported by a pull-out belt, in dense areas, the stems and leaves become tangled, and if the belt is supported in this state, the density of the stems and leaves becomes obvious. The conveying condition deteriorated due to the separation, and uniform feeding could not be expected.

In addition, in prior art 2, the cutter is located on the center line of the pulling belt and cuts are made at this position, so the cut leaves (hereinafter referred to as stems) do not fall onto the pulling belt. Even if a release chute was provided, it was difficult to release the product outward. Moreover, since the discharge chute is cylindrical, the cut stems get stuck in the cylinder and remain there, which not only leads to excessive power consumption but also makes continuous harvesting difficult.

In view of the problems of the prior art described above, the present invention has been developed by cutting the stem with a cutting tool provided above the belt before supporting the stem with a pair of left and right pulling belts, and moving the cut stem outward on one side. The purpose is to provide a harvesting machine that can reliably release the material, which is suitable for harvesting densely packed and long-stemmed crops such as ginger, and which allows the harvesting machine to cut the stalks. Rotary plowing can be performed to prevent entanglement with rotary claws.

(Means for Solving the Problem) The present invention comprises a pair of left and right running devices 2, and a pair of left and right pulling belts 3A and 3B that pull out a crop S such as ginger while sandwiching it and conveying it rearward. In order to achieve the above-mentioned purpose, the following technical measures have been taken in the harvesting machine for ginger, etc., which is equipped with:

That is, the present invention provides a pair of left and right scraping wheels 56 to
60 is provided on the starting end side of the pulling device 3, and the stalks of the crop S that have been raked by the raking device 61 are transferred to the pulling heel l-3A, 3B in the pulling device 3.
A cutting tool 83 is provided to cut the stem before the cutting tool 83 is clamped and above the belt, and a stem guide device 95 is provided to guide and release the stem cut by the cutting tool 83 to one side outward. Further, in a second aspect of the present invention, the stem guide device 95 includes:
It is characterized by comprising a bottom plate 96 that covers the upper part of the cutting tool 83, and a guide plate 98 that is curved toward the cutting tool 83 and guides the raked stem to the cutting tool 83. It is something to do.

(Examples and effects) Embodiments of the present invention will be described in detail below with reference to the drawings.

Figures 1 and 2 illustrate a harvesting machine that is intended for use as a crop S by a farmer's committee. A device 2 and a pulling device 3 consisting of a pair of left and right pulling belts 3A and 3B which pinch the crop S and pull it out while feeding it rearward are provided.

A driving means 6 consisting of an engine 4, a missigon device 5, etc. is mounted on the upper part of the fuselage l, and a space 7 penetrated in the front and rear direction is formed in the abdomen of the fuselage l, and this space 7 A pull-out device 3 is housed in the upper and lower central portions (substantially closer to the bottom) of the drawing device 3, with the conveyance direction being the front-rear direction.

The traveling device 2 includes an auxiliary wheel 8 disposed in front thereof, the engine 4 is covered with a bonnet 9, and a fuel tank 9A is covered on the combustion device 5,
The pull-out belts 3A and 3B are covered with a belt cover 10, and the center of gravity G of the entire body 1 is set near the drive section of the traveling device 2.

The fuselage 1 has a pair of main frames 11 on the left and right, which are triangular in side view and have windows 11A so that the working status of the pair of extraction bells 1-3A and 3B can be confirmed.
The inside is hollow and doubles as a chain case (transmission case).

Inside the main frame 11, a drive sprocket 13 for a drive shaft l2 is located at the top of the main frame 11, and driven sprockets 16 for an axle 14, 15 are located at the front and rear tops of each main frame 11. 17, and a winding power transmission body 18 shown as a chain is wound around each of these sprockets 13, 16, and 17.

A mount 1 for the driving means 6 is mounted on the top part between the left and right pair of main frames 1l.
9, on which the engine 4 is placed at the front and the transmission device 5 is placed at the rear, with a pulley 20 on the output shaft of the engine 4 and a pulley on the input shaft of the mission device 5. A belt 22 is wrapped around the 2l,
The bonnet 9 that covers the engine 4 has a fulcrum shaft 2 at the front thereof.
The engine 4 can be opened and closed at will, and the closed position is secured by a stopper 24, making it easy to maintain the auxiliary components of the engine 4, such as plugs and carburetors.

The front part of the pedestal 19 is provided with a front frame 25 which is arch-shaped when viewed from the front and back and slopes downward in the front.The rear left and right sides of the pedestal 19 are provided with an arch-shaped front frame 25 having a pair of left and right columns. A rear frame 26 is provided below, and the lower part of the rear frame 26 is connected to the left and right frames 27 of the extraction device 3, and the left and right frames 27 are shaped like a central pillar box extending in the front-rear direction. The lower end side of the front frame 25 is connected to the front side of the main frame 11, the mount 19, the front frame 25, the rear frame 26, and the left and right frames 27, which constitute the body 1.

The traveling device 2 supports the machine body 1 substantially parallel to the field.
It is a two-axle four-wheel type equipped with a front wheel 28 and a rear wheel 29, the front wheel 28 is attached to the axle 14 at the front top, and the rear wheel 29 is attached to the axle 1 at the rear top.
5 on the outside of the main frame 11, respectively.

The drive shaft 12 is supported by a bearing case 21'' that protrudes inward from the top of the main frame 11, and is
It is interlocked and connected to a transmission shaft within the tension device 5.

A driving means 6 is connected to a pair of left and right main frames 11 in the fuselage 1.
The pulling device 3 is supported in a swinging manner as shown by the arrow A in FIG. 12, using the drive shaft 12 at the top of the main frame 11 as a fulcrum, so that the pulling height position can be adjusted. Therefore, the pair of left and right front and rear legs of the main frame 11 and the left and right frames 27 have the first
They are connected by a thousand connecting stages 30 shown in FIGS. 2 to 15.

That is, the connecting means 30 connects the bracket 31 having the arc-shaped mounting hole 31A with the drive shaft l2 as the fulcrum, above and below the left and right frames 27, and between the front and rear legs 11 of the main frame 11.
B, fixed in a position opposite to IIC, while front and rear legs 1
1B and IIC are inserted into each of the mounting holes 31A and fastened with nuts 33. Therefore, by loosening the nuts 33, swinging as indicated by arrow A is allowed, and after adjustment, the nuts 33 is tightened to hold the adjustment position fixed.

A pair of auxiliary wheels 8 are arranged on the left and right in front of each traveling device 2. Each auxiliary wheel 8 is rotatably supported via a support shaft 35 at the lower end of a bell-crank-shaped swinging arm 34, and is also oscillated. The movable arm 34 is moved up and down by a support shaft 35 between a lowered position D where the auxiliary wheels 8 support the machine body 1 together with the traveling device 2 substantially parallel to the field, and an elevated position U above this force ζ.
It is attached to the front frame 25 by.

Further, the swing arm 34 is operatively connected to an operating lever 37 via a turnbuckle-structured ring 36 connected thereto, and can be operated up and down by this operating lever 37.

The operating lever 37 is fixed to both ends of a connecting shaft 38 that extends between the upper portions of the left and right main frames l1 and is rotatable about an axis. It is pivoted and can be operated up and down, and
There are a pair of left and right operating levers 37, ronds 36, etc., and by moving either one of the operating levers 37 up and down, the auxiliary wheels 8 can be operated to a lowered position D and a raised position U.

The swinging arm 34 has a stopper 38'', which can come into contact with the rear part of the front frame 25, so that when the auxiliary wheel 8 encounters an obstacle or the like, the impact is removed. This prevents the iron 36 from bending, etc., and 39 indicates a spring for pulling up, etc.

In addition, the distance between the front and rear wheels 28, 29, the auxiliary wheel 8 and the front wheel 2
8 is larger than the groove width W of the groove 40 between the ridges of the field.

At the upper end of the rear frame 26, so as to protrude rearwardly,
A pair of left and right handles 41 are attached, and each handle 41 is provided with a working clutch lever 42 and a main clutch lever 43. Note that 44 is a forward/reverse switching lever.

The belt force bar 10 is a pair of left and right pull-out bells I-3A, 3B.
There are a pair of belt force bars 10 on the left and right corresponding to the above, and each belt force bar 10 is attached to a pair of left and right frames 27 with bolts or the like.

The pulling belts 3A and 3B are for pulling the stalks of crops S such as raw wheat grown in the field from the left and right sides while conveying them backwards, and each of the left and right pulling belts 3
A and 3B are made of an elastic material such as rubber with a JISA shore hardness of 50 to 60 degrees, and are wrapped around the driven pool 45 at the front end and the drive bobber 46 at the rear, and hold the stalk of the crop S from the left and right. It is guided by a large number of guide pulleys IJ47, and is provided so as to be freely rotatable with a slight incline upwardly as a whole.

Each pull-out belt 3A, 3B has three engaging protrusions 48 on the inner circumferential surface of the belt main body, and two protrusive protrusions 49 on the outer circumferential surface at positions vertically offset from the center, as shown in the white figure. 50, respectively, and the engagement protrusion 48 has a diameter of 45, 4.6.
．． 47, and the protrusions 49 and 50 on the outer periphery engage with each other with a slight gap at the opposing parts of the pair of pull-out bells 1-34 and 3B, that is, the crop supporting parts. It's designed to fit.

Engagement protrusion 48 and protrusion 4 of both pull-out bells} 3A and 3B
9.50 is formed by integrally molding or separately forming a chevron member on the belt body, for example, by baking a belt onto a flat belt. The positional relationship between the mating ridges 48 and the ridges 49 is the same as that of the pull-out belt 3B,
Pulling Hel I-3A. 3B have the same shape, and the pull-out belt 3B is wound around the pull-out helt 38 upside down.

The crop S held between the two extraction bells I-3A and 3B is bent into a zigzag shape as shown in FIGS. It is bent and clamped by the pull-out bells} 3A and 3B, and receives a strong pull-out force as they move upward.

Therefore, when the guide pulley 47 is rotatably mounted on the U-shaped support frame 51 by the pin shaft 52, the upper surface side moves in a narrowed shape as shown by arrow B in FIG. 8 due to the reaction of the pulling force F. In order to prevent the pull-out belts 3A and 3B from coming off,
As shown in FIGS. 9 and 9, the pin shaft 52 is inclined so that the distance between the axes of the pin shaft 52 is wider on the upper surface side and narrower on the lower surface side. Further, the guide pulleys 47 are arranged in a staggered manner as shown in FIG. 7, so that when the stem S is supported by the pull-out belts 3A and 3B, elastic deformation in a wavy manner is facilitated.

The driven pulley 45 is connected to the 11 through the tension adjustment mechanism 53.
? ■It is attached to a driven shaft 54 provided at the end, and this driven shaft 54 is equipped with a pair of left and right scraping wheels for scraping the upper side of the crop stalk between the pair of left and right pulling helts 3A and 3B. A scraping device 61 having numbers 55, 56, 57, 58, 59, and 60 is provided.

As shown in FIGS. 2 and 3, the scraping device 61 has cylindrical bodies 62^, 62 having different heights on each of the left and right driven bobbies 45.
Attach the raking wheels 55.58 with bolts 6364 through the raking wheels 55. 58 boss parts 65.6
6, fit the vertical shaft 67.68 and tighten the stop bolt 69.70.
Scratching foils 56.57, 59.60 are attached to stop bolts 71, 72, 7 on this vertical shaft 67.68.
3.74, and each scraping wheel 55 is attached here.
.about.60 are provided at intervals in the height direction, and the left and right wheels are shifted in position in the height direction.

Therefore, the lower scraping wheel 55. The stem rod S is sequentially rotated as shown by arrow C in FIG. , it is possible to scrape toward the starting end of the pulling helt of the pulling device.

Here, by shifting the positions of the opposing claws of the left and right wheels in the height direction, the stem rod S is prevented from being compressed and broken during raking. This ensures that the cutting is secure.

? Oh, among wheels 55-60, wheels 55 and 58
, 57. All of the wheels 60 are made of hard synthetic resin and have a sprocket shape, and the wheels 56 and 58 are made of metal and have a sprocket shape.

In addition, 75.76 is a detension collar, which maintains the vertical distance between the wheels and prevents crops etc. from getting entangled around the vertical shafts 67, 68 due to the rotation of the vertical shafts 67, 68. It is loosely fitted to .68.

As shown in FIG. 4, a mounting frame 77 is attached to the front side of the fuselage 1 by a connecting shaft 78.
8 can be freely inserted and removed from the post 79 of one example of the fuselage and the boss 80 on the mounting frame 77 side, and can be freely attached and detached by stop bolts 81 and 82, respectively.

The mounting frame 77 has a substantially ■-shaped shape when viewed from above,
This mounting frame 77 is provided with a cutting tool 83 and a vertical shaft 67,68 equipped with scraping wheels 55-60, and the vertical shaft 67,68 is supported at the tip of the mounting frame 77 by bearings 84,85. ing.

The mounting frame 77 has guide portions 86, 87 for guiding the stems raked by the raking device to the supporting starting ends of the pulling belts 3A, 3B.

The cutting tool 83 is a disc-shaped vine, is arranged to be shifted to the right in the embodiment from the drawing center line L-'L, and has a cutting edge 83^ on the outer periphery of the disc.

The cutting tool 83 is attached to the mounting frame 77 as shown in FIG.
A support shaft 89 is provided upright on the arm B8, and is rotatably attached to the support shaft 89 via a bearing device 90, and is provided with a resistance applying device 91 represented by a coil spring.

Therefore, the cutting tool 83 is configured to rotate only after overcoming the resistance applying device 9l. Note that 92 in Figure 19
indicates a labyrinth means for preventing foreign matter from entering the support shaft 89.

The cutting portion 93 of the cutting tool 83 is located in front of the pulling start end 94 of the pulling bells }3A, 3B, and is adapted to cut the stem S before supporting the pulling belt stem.

The cutting portion 93 is formed by the engagement portion of the cutting edge 83A of the cutting tool 83 and the claw 56A of the scraping wheel 56, and the cutting portion 93 is located slightly below the pedestal 19 and above the starting end of the extraction device 3. are doing.

The claw 56A of the wheel 56 is configured to push the stem S into the cutting portion 93, and the claw 56A is attached to the lower surface of the outer periphery of the cutting tool 83.
The top surfaces of the two are in sliding contact with each other.

Therefore, the stem S that has been scraped and pushed in by the wheel 56
is cut in cooperation with the cutting edge 83A of the cutting tool 83, and when this cutting resistance is greater than the resistance applying device 91, the cutting tool 83 is driven to rotate, and by the rotation of the wheel 56,
In the figure, the cut stem is supported on the right side so that it can be released.

Here, the outer periphery of the wheel 56 56A is shaped into a downwardly bent portion 56B, as shown in FIG. 23, to ensure smooth sliding contact with the cutting edge 83A.

Further, in the part of the arm 88 corresponding to the cut part 93,
As shown in FIG. 4, by shaping the notch 94, the lower part is opened until the cutting of the stem is completed, making it easy to enter the cut portion 93 of the crop (stem), and complete cutting is possible.

Reference numeral 95 denotes a stem guide device, in which a bottom plate 96 that covers the upper surface of the cutting tool 83 is fixed onto the mounting frame 77 via a stay 97, and a stem guide device 95 is provided with a vertical stem positioned between the scraping wheels 59 and 60. A first guide plate 98 covering the shaft 68 is provided upright to maintain the shape of the first temporary guide 98, and the first guide plate 98
As shown in Figure 2, the left front part is at the frontmost end and the curved part 9
8A, and has a guide portion 98B inclined rearward from this portion to the right side, extending toward the cutting portion 93, and the scraping wheels 58 to 60 are exposed from the curved portion 98A. The outer peripheral edges of the raking wheels 55 to 57 overlap the guide portion 98B in plan view, and the stems raked by the raking device are raked and guided to the right here. .

Above the first guide plate 98, a second guide plate 99 is connected to the wheel 6.
0, and this second guide plate 99 has a curved portion 99A1 that has substantially the same shape as the first guide plate 98 in plan view.
It has a guide portion 99B and is attached by a stay 100.

Between the wheels 56 and 57 of the scraping device is a vertical shaft 67.
A third guide plate 101 which is substantially oval in plan view and surrounds the outer periphery of the mounting frame 77 is attached by a stay 102 projecting outward from the front end of the mounting frame 77 and a stay 103 erected from the stay. , the curved portions 98A and 99A of the first and second guide plates 98 and 99, and the curved portion 101 of the third guide plate 101.
8, the scraping starting end forms a first guide passage which is open at the front and tapered at the rear, and is bent toward the cutting part 93, and the part outward from the cutting part 93 is outwardly expanded. A discharge chute 104 is attached to the mounting frame 77 with bolts 105 in a downwardly inclined shape at the bottom of the second guide passage 103゜.
(see figure).

In the second guide passage 103', a second guide temporary 98 is located at the rear of the first guide plate 97 in plan view, and has a foot roller portion 106 therein.
06, the upper part of the second guide plate 99 has a forwardly bent push-in portion 99C (see FIG. 24).

This ensures that the cut stems are captured by the foot rollers 106 and that the foil 57 is bitten into the nail by the push-in portion 98C, so that the cut stems are smoothly released through the release chute 104.

A fourth guide plate 107 having the same planar shape as the third guide plate is attached to the stay 103 on the wheel 57. This prevents the liquid from being scraped forward and promotes release through the release chute 104.

Here, the stem cut at the cutting part is supported by the rotation of the wheel 56 and cutting tool 83, and is guided to the second guide passage 103' and discharged to the front and outside of the right front wheel by the discharge chute 104. be done.

Here, the scraping wheels 55 to 55 in the scraping device are
The wheels 60 are shifted in phase in the height direction, and the wheels 55 to 57 on the stem release side are all set at a higher position than the corresponding wheels 58 to 60.

Note that since the wheels 57 to 60 are all exposed forward from the guide plate, the claws of these wheels do not have cutting edges, ensuring safety.

Reference numeral 108 denotes a pair of left and right dividers, which are made by bending a bar into a triangular shape when viewed from the side.The upper ends of the dividers 108 are removably attached to the left and right bosses 109 of the mounting frame 77, and the lower ends are attached to the bosses 110 of the left and right frames. It is detachably attached to and fixed with a set screw 111.

Here, the cutting tool, the scraping device, and the stem guide device 95 are the 18th
As shown in the figure, it is made into a unit, and the unit is detachable except for the lower wheels 55 and 58 of the scraping device.

This unit can be attached or detached by pulling out the connecting shaft 78,
By releasing the connection between the and the mounting frame 77, removing the stop bolt I-69.70 of the vertical shaft 67.68, and removing the set screw 11 of the divider, it is removed as shown in Fig. 18, and the installation is reversed. done in steps.

In this way, by removing the unit port 12 containing the cutting tool 83, it becomes easier to load the container into a wagon etc., and it is advantageous for the storage space. Some crops have low yields, and this is to adapt to pull-harvesting of crops with low yields.

The tension mechanism 53, as shown in FIG.
3, connect the tension arm 114 with a tension spring (not shown),
The tension arm 114 is attached with an adjustment bolt or the like, and the tension of the pull-out belt can be adjusted via a driven pulley. A scraper tool 115 is attached.

The left and right raking wheels 55 to 60 have chevron-shaped claws on the outer periphery at equal intervals in the circumferential direction, as shown in FIG. It has an approximately sprocket shape, is larger than the driven pulley, and has a circumferential speed similar to that of the pulley, and the pulling belts 3A and 3B.
is faster than the moving speed of

The left and right raking wheels 55 to 60 rotate synchronously, and the rotational trajectories of the left and right claws overlap, but they do not contact each other like gears, but form an abutment with a gap between them. It is configured so that it is sent backwards while holding it in place.

The drive boolean 46 is located near the rear wheel and has a first
5 and 6, a vertical transmission shaft 116 is connected to both ends of the output shaft of the tensioning device via a bevel gear mechanism. 117, and cylindrical collars 118, 119 are loosely fitted onto this transmission shaft 11.6.117.

Therefore, as the drive boom 46 rotates in the direction of arrow D in FIG. 5, the pull-out belts 3A, 3B are rotated in the direction of arrow E in FIG.

Among the transmission shafts 116 and 117, two scraping wheels 120 and 121 are attached to the left transmission shaft 116, upper and lower. The tip is positioned close to the supporting surface (pulling center line) of the pulling belt.

The upper and lower scraping wheels 120, 121 have the same shape and are made of sheet metal, and above the wheel 120 is provided a guide member 122 made of a wire whose one end is connected to the rear frame.

The guide member 122 wraps around the bottoms of the claws of the scraping wheels 120 and 121 in a plan view, and the latter half thereof extends outward perpendicularly to the working direction, near the inner side of the main frame 11 at the rear wheel. It's over.

Reference numeral 123 denotes a scraping chute, which discharges the cut stems to the inside of the rear wheel along with the scraping wheels 120, 121, the guide member 122, and the guide plate 124. Attach the stay 125 that is approximately L-shaped when viewed, and attach the bolt 12 to this stay 125.
It is attached by 6.

The scraping chute l23 has an upper edge surface that is connected to the pulling belt 3A.
A straight section 123A extends parallel to the drawing center line on the right side of the drawing center line with a narrow gap between the bottom surface thereof and the front end thereof as shown in FIG.
3B, and the pull-out belt 3A. Termination part 125 of 3B
Further to the rear is a guide portion 123C that is inclined to guide the cut stem to the left while supporting it.

The guide plate 124 is the belt force bar 1 of the right side pull-out belt 3A.
0, the scraping passage 126 is configured to be curved to the left together with the guide member 122 from the terminal end 125 to the rear, and is made of an elastically deformable plate material.

A rear cutting portion 127 is provided on the lower surface of the support frame 5l slightly forward of the front end of the guide plate 124.

As shown in FIGS. 7 and 8, this rear cutting device 127 uses a pin shaft 52 to cut the straight cotton blade 12 with a nut 28.
A pair of flat cutting tools 129 having 9A and 130A,
130 is removably attached so that the straight blades 129A, 130A are in the shape of a scissors, and the straight blades 129A, 130A
130^ intersect in the middle, and this intersection is located on the drawing center line. Therefore, using the cutting tool 83 described above, cut the middle part of the stem and leaf,
The stem with the bulbous part is pulled out by the pulling belt 3A. In the process of being pulled out by 3B and conveyed backwards, the straight blades 129A and 130A of the cutting device 127 cut the bulbs into pieces again, and the pulled out bulbs are dropped, and the stems supported by the pulling bells 1-3A and 3B are It is emitted to the left via the guide plate 124 and the like.

Here, the bulb parts are sequentially dropped onto the field between the traveling devices, and the cut stems are first dispersed and released, with the upper part to the right and the middle part to the left.

Flat cutting tool 129. Due to the cutting resistance at the cutting tool 130, etc., the extraction bells l-3A and 3B cause a so-called opening phenomenon in the expansion direction.To prevent this, the cutting tool 12
9. At the rear of 130, a pair of left and right support frames 51 are connected to each other by a connecting member 131 and a fastener 132.

The overlapping parts of the flat cutting tools 129 and 130 are supported by a pivot pin 133, etc., and can be attached and detached with a nut 128, and the blade portion has a longitudinal edge as shown in FIG. It is desirable to have grooves 129B in the direction.

As shown in FIGS. 16 and 17, this harvester has a stand function by lifting the front end and using the rear wheels 29 and handle 41. In this stand state, the center of gravity of the machine is It is designed to be located between the rear wheel 29 and the handle 41.

In this way, by standing the rear wheel 29 and the handle 41, the tension mechanism 53 and the rear cutting device 1
27 etc. is said to be easy to maintain.

10 and 11 show a chain tensioning mechanism 134 in the main frame 11, and this tensioning mechanism 134 is used to hold the U-shaped bracket 135 in the main frame 11 and attach it to the fastener 1.
36 as a fulcrum, and a guide roller 137 that contacts the chain is rotatably fitted onto the fastener 136, and a tension guide roller 138 is provided on the upper part of the guide roller 137. 35 is adjusted by swinging with a tension bolt 139.

Note that the notch 140 is for avoiding interference between the inner end of the main frame and the bracket 135.

FIG. 22 shows another example of the front cutting device, in which the axis of the cutting tool 83 is not vertical, but is opened at the cutting start side, so that the cutting tool 83 and the wheel come into sliding contact at the cutting end side. This allows the wheel pawl to be smoothly introduced into the cutting tool 83.

The Hertkach-IO prevents leaves and stems from hanging down on the inner periphery of the pulling belts 3A, 3B and causing entrainment.

In the above embodiment, when the crop S such as ginger is pulled out, it is carried out by running on the low bed ridge in the orthogonal direction.

That is, when traveling forward with each part being driven, the pair of left and right scraping wheels 55 to 60 scrape the upper part of the stalk of the crop backwards as shown in FIG. 11, and the pair of left and right pulling belts 3A, 3B, the pair of pulling belts 3A and 3B pinch the stalk of the crop from both left and right sides.

Before pinching the stem, the cutting tool 83 and the scraping wheel 56 cut the stem at a position lower than or below the pedestal 19.
The cut stem is released outward on the right side.

The stem with a bulb whose middle part has been cut is relatively fed to the pulling start end by the guide part of the mounting frame 88.

The pulling and marking device 3 then pulls out the crop upward while conveying the crop relatively backward at a speed synchronized with the traveling device 2.

That is, the crop S, which is growing upright and has its upper part cut off, is separated from the bulb by the front half of the pulling device 3, that is, between the auxiliary wheels 8 and the front wheel 28, and the bulb is removed near the center of gravity G. After the SA is pulled out and the crop bulb SA is completely pulled out in this way, the cutting device 127 at the rear end of the pulling belts 3A and 3B is used to cut the stem, and then the stem rod is removed using a scraping wheel. Scrape it backwards and to the left.

When the unit including the cutting device is removed as shown in FIG. 18, the long stems that are not cut hit the front frame, pedestal, etc. and are subjected to conveying force, so they are bent.
It will be cut using the rear cutting device.

The center of gravity G of the aircraft 1st class is near the front wheels 28, and a large pulling force is required near this area.
Because of this relationship, it will be reliably supported by the traveling device 2.

Furthermore, since the main frame 11 has a window 11^ that allows the interior to be viewed from the side, the work status during transportation can be confirmed from the outside.

When traveling in the orthogonal direction on a low floor ridge, the front wheels 28 and rear wheels 29 of the traveling device 2 and the auxiliary wheels 8 in front of the
is held in a constant position approximately parallel to the field. Ru. That is, when the front and rear wheels 28,29 are on the ridge, the front and rear wheels 28,29 support the body 1 even if the auxiliary wheels 8 are on the groove, and when the front wheels 28 are on the groove, the auxiliary wheels 8 and the rear wheels support the body 1. Aircraft i at 29
Furthermore, when the rear wheels 29 are on the groove, the auxiliary wheels 8 and the front wheels 28 support the body 1. Therefore, the body 1 can be supported substantially parallel to the field regardless of the presence or absence of the groove.

Furthermore, since the center of gravity G of the entire machine body 1 is located near the top of the front wheels 28, it is sufficient to lift the handle 4l lightly and support it freely, which can lighten the burden on the operator.

(Effects of the Invention) The present invention is as described above, and a scraping device having a pair of left and right scraping wheels is provided on the starting end side of the pulling device,
A cutting tool is provided to cut the crop stalks raked by the raking device before the crop stalks are pinched by the pulling helts of the pulling device, so that the tightly tangled crop can be untangled and cut at the starting end of the pulling belt. can be sent in an orderly manner.

In addition, a guide device is provided that guides and discharges the stems cut by the cutting tool in one direction, so the cut stems are not sent to the pulling belt, but are reliably discharged in one direction, and the bulbs are removed. There is no problem in pulling out the attached stem.

Furthermore, since the guide device is equipped with a bottom plate that covers the upper part of the cutting tool, safety can be ensured, and since a guide plate is provided at the bottom of the guide device, the shape of the guide plate can be maintained by the bottom plate, and the guide plate can be deformed. etc. can be prevented.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention, and FIG. 1 is an overall side view;
Fig. 2 is a plan view, and Fig. 3 is an elevational sectional view from the front.
FIG. 4 is a plan view showing the scraping device and the cutting device, FIG. 5 is a plan view of the scraping device, FIG. 6 is a rear view, and FIG. 7 is a bottom view showing the pulling belt and the rear cutting device. Fig. 8 is a sectional view taken along the line X-X of Fig. 7, Fig. 9 is a sectional view taken along the line Y-Y of Fig. 7,
FIG. 10 is a partially sectional side view showing the inside of the main frame, FIG. 11 is an elevational sectional view, and FIG. 12 is a side view showing the main frame portion.
Figure 13 is a Z-Z line arrow diagram in Figure 12, Figure 14 is a front view of the bracket for connecting the main frame and extraction device, Figure 15 is a side view, and Figure 16 is a stand for the harvester. Fig. 17 is a side view, Fig. 18 is a side view with the cutting unit etc. removed, Fig. 19 is an elevational sectional view of the front cutting tool, Fig. 20 is a tension Plan view of the mechanism,
Fig. 2l is a sectional view, Fig. 22 is an elevational view showing another example of the front cutting tool, Fig. 23 is a plan view and side view showing the pawl of the scraping wheel, and Fig. 24 is an overall view. The perspective view and FIG. 25 are plan views showing other examples of the rear cutting tool. ■... Airframe, 2... Traveling device, 3... Extracting device,
55-60... Scraping wheel, 6l... Scraping device, 83... Front cutting tool, 95... Stem guide device, 96
...bottom plate, 98...information board. Patent applicant Kubota Iron Works Co., Ltd.

Claims (2)

[Claims] (1) A pair of left and right running devices (2) and crops such as ginger (S
A harvester for harvesting ginger, etc., is equipped with a pulling device (3) consisting of a pair of left and right pulling belts (3A) (3B) that pull out while conveying it backwards while sandwiching a pair of left and right raking wheels (56). ) to (60) is provided on the starting end side of the pulling device (3), and the crop (S) raked by the raking device (61)
The stem of
A) A cutting tool (83) is provided which cuts the stem before it is pinched by (3B) and above the belt, and a stem guide device (95) which guides the stem cut by the cutting tool (83) outward to one side and releases it. ) A harvesting machine for harvesting ginger, etc. (2) The stem guide device (95) includes a bottom plate (96) that covers the top of the cutting tool (83), and the bottom plate (96) includes a cutting tool (83).
83) A harvester for harvesting ginger, etc. according to claim 1, further comprising a guide plate (98) which is curved toward the cutting tool (83) and guides the cut stem to the cutting tool (83).