JPH084B2 - Harvesting machine for ginger etc. - Google Patents

Description

TECHNICAL FIELD The present invention relates to a harvester for pulling out and harvesting organisms such as ginger from a field.

(Prior Art) As a technique for harvesting a crop vegetated in a field, for example, there is a technique disclosed in Japanese Patent Laid-Open No. 60-137207.

In this conventional technique 1, a pulling device including a pulling belt having a rearwardly inclined slope is provided on one side of the traveling machine body, and the stems and leaves of the bulb vegetables are sandwiched between the pulling device and the pulling device, and the pulling device is fed to the upper rear side. The cutting blade was provided to cut the foliage.

Also, as a harvesting machine for ginger, onions, etc.
There is a technique disclosed in Japanese Patent No. 173021.

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

(Problem to be Solved by the Invention) Since 1 of the prior art is provided with a cutting blade in the latter half of conveyance, until cutting with this cutting blade, ginger, onion, etc. having long foliage along with bulbs In the case of a crop, if the cutting timing is delayed and the foliage or the like is entangled with each other, it is difficult to sandwich the crop in an extracting belt in an aligned manner, which causes cutting failure or malfunction.

Since the conventional example 2 has a cutter in the first half of the conveyance, although the problem of the conventional example 1 is solved for the time being, the cutting is performed while being clamped by the pulling belt, and therefore the foliage in a dense area. However, if the belt is clamped in this state, the density of the foliage is clearly seen, and the conveyance state deteriorates, so uniform feeding could not be expected.

Further, in the prior art 2, since the cutter is located on the center line of the drawing belt and the cutting is performed at this position, the cut foliage (hereinafter abbreviated as stem) falls on the drawing belt. However, it was difficult to discharge outward even if a discharge chute was provided. Moreover, the release chute is
Due to the cylindrical shape, the cut stems were clogged in the cylinder and remained there, which caused excessive consumption power and made continuous harvesting work difficult.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems of the prior art, and an object thereof is to provide a harvester configured to perform cutting with a cutting tool before sandwiching a stem with a pair of left and right pulling belts. Moreover, it is suitable for harvesting ginger and the like having a long stem, and by cutting the stem, it is possible to prevent entanglement in the tillage nail even if rotary tillage is carried out after harvesting.

(Means for Solving the Problem) The present invention includes a pair of left and right traveling devices, and a pulling device including a pair of left and right pulling clamps that pulls a crop such as ginger while pulling it while conveying it backward. Harvesting machines such as ginger take the following technical measures to achieve the above-mentioned purpose.

That is, in the present invention according to claim 1, a scraping device having a pair of right and left scraping wheels is provided on a starting end side of the pulling device, and a stem of a crop scraped by the scraping device is provided to the pulling device. In the front view, an arch-shaped connecting frame is provided for connecting a pair of left and right frames to which the pair of left and right pull-out sandwiching bodies are attached, with a cutting tool for cutting before being sandwiched by the pull-out sandwiching bodies and above the pull-out sandwiching bodies. Is provided.

In the present invention according to claim 2, the above-mentioned claim 1
In addition to the above construction, a cutting tool is provided so that the cutting position is shifted to one side from the drawing center line of the drawing clamp, and the shoot cut by the cutting tool is discharged to the lower outside in the direction of the cutting tool shift. Is provided.

Further, in the present invention according to claim 3, the above-mentioned claim 1
Or in addition to the configuration of 2, the pair of left and right scraping wheels are
Each of them has a plurality of intervals in the height direction and is displaced in the height direction, and the uppermost scraping wheel on the discharge side of the cut stem is more than the corresponding scraping wheel. It is characterized by being in a high position.

Further, in the present invention according to claim 4, the above-mentioned claim 1
In addition, a pair of left and right scraping wheels and a cutting tool are provided on a common mounting frame, and the mounting frame is provided with a guide portion for guiding the scraped stalk to the clamping start end of the pulling device. It is a feature.

(Operation) According to the present invention, when the crop is extracted and harvested by traveling while the machine body is supported by the pair of left and right traveling devices, the scraping device having the pair of left and right scraping wheels is provided at the start end side of the extracting device. In addition, since a cutting tool for cutting the crop stalks scraped by the scraping device before the sandwiching body of the pulling device and above the pulling sandwiching body is provided, it is dense and entangled. The entanglement of the crops can be released and the crops can be fed orderly to the starting end of the sandwiching body.

Further, since the crop is sandwiched and conveyed by the pair of left and right pulling clamps, it is necessary to provide a connecting frame that connects the left and right frames to which the pair of left and right pulling clamps are mounted, but the pulling clamps are used to pinch the crops. By cutting the crop in front, the mounting position of the connecting frame can be improved, and the connecting frame can be provided at the front and rear, and it is possible to sufficiently cope with a large pullout resistance.

Further, in the present invention according to claim 2, a cutting tool is provided so that the cutting position deviates to one side from the drawing center line of the drawing holding body, and the stalk cut by the cutting tool is located outside the cutting tool in the direction of deviation. Since the chute for discharging is provided to the pulling and sandwiching body, the cut stem is reliably discharged to one side in the traveling direction, and there is no hindrance to pulling out the stem with bulb.

Further, in the present invention according to claim 3, a pair of right and left scraping wheels are arranged in a plurality with a gap in the height direction and a position offset in the height direction, respectively, on the discharge side of the cut stem. Since the uppermost scraping wheel is located higher than the corresponding scraping wheel, the cutting stem can reliably receive the throwing action of the wheel and can be reliably discharged to the side of the aircraft.

In the present invention according to claim 4, a pair of right and left scraping wheels and a cutting tool are provided on a common mounting frame,
Since the mounting frame is provided with the guide portion for guiding the scraped stalk to the holding start end of the pulling device, the cutting tool and the wheel can be mounted at regular positions, and the relationship between them can be properly held. With the guide, the plant with bulbs can be introduced at the starting point of withdrawal.

(Example) Hereinafter, an example of the present invention will be described in detail with reference to the drawings.

FIG. 1 and FIG. 2 exemplify a harvester for ginger as the crop S. The harvester includes a machine body 1 and a pair of left and right traveling devices that support the machine body 1 substantially parallel to a field. Two
And a pair of left and right pull-out nipping bodies that pull out the crop S while conveying it backwards (sometimes referred to as pull-out belts hereinafter)
And 3A and 3B, respectively.

A prime mover 6 including an engine 4, a mission device 5 and the like is mounted on the upper portion of the machine body 1, and a space portion 7 penetrating in the front-rear direction is formed in the abdomen of the machine body 1 and the space portion 7 is formed. The pulling-out device 3 is housed in a substantially central portion in the vertical direction (substantially downward) with the transport direction in the front-back direction.

The traveling device 2 includes auxiliary wheels 8 arranged in front of the traveling device 2, and the engine 4 is covered with a hood 9.
It is covered with a fuel tank 9A on the mission device 5,
The withdrawal belts 3A and 3B are covered with a belt cover 10,
The center of gravity position G of the entire machine body 1 is set near the drive unit of the traveling device 2.

The body 1 is provided with a pair of left and right main frames 11 each having a triangular shape in a side view and having windows 11A so that the working state by the pair of pull-out belts 3A and 3B can be confirmed. The main frame 11 has a hollow inside. It also serves as a chain case (transmission case).

Inside the main frame 11, the drive sprocket 13 of the drive shaft 12 is arranged at the top of the main frame 11, the driven sprockets 16 and 17 of the axles 14 and 15 are arranged at the respective tops of the front and rear, and the respective sprockets 13, 16 and A winding transmission body shown as a chain across 17
18 is wound.

At a top portion between the pair of left and right main frames 11, a pedestal 19 of the driving means 6 is provided.
The engine 4 is arranged in the front part and the mission device 5 is arranged in the rear part on the pedestal 19, and the pulley 20 on the output shaft of the engine 4 and the pulley 21 on the input shaft of the mission device 5 are provided. A belt 22 is wrapped around the engine 4
The hood 9 that covers the vehicle is openable and closable around a fulcrum shaft 23 at the front thereof, and a closed position is secured by a stopper 24. Here, auxiliary devices for the engine 4, such as a plug and a carburetor, are maintained. Is easy.

The front part of the gantry 19 has an arch shape in a front and rear view, and is provided with a front frame 25 that inclines in a front downward direction, and an arch shape having a pair of left and right columns on the left and right rear parts of the gantry 19. A rear frame 26 is installed below, and the lower portion of the rear frame 26 is connected to the left and right frames 27 of the pulling-out device 3, and the left and right frames 27 are in the shape of a center pillar box extending in the front-rear direction. On the front side of the front frame
The lower end side of 25 is connected, and the main frame 11, the gantry 19, the front frame 25, the rear frame 25, and the left and right frames 27 form the body 1 here.

Here, the left and right frames 27 on which the pair of left and right extraction sandwiching bodies 3A and 3B are mounted are connected to each other by arch-shaped (including gate-shaped) front and rear frames (connection frames 25 and 26).

The traveling device 2 is a two-axis four-wheel type equipped with a front wheel 28 and a rear wheel 29 so as to support the machine body 1 substantially in parallel with the field.
Reference numeral 28 is attached to the front axle 14 and rear wheel 29 is attached to the rear axle 15 outside 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 interlocked with a transmission shaft in the mission device 5 via a steering clutch.

Driving means 6 for the pair of left and right main frames 11 in the machine body 1
And the pulling device 3 includes a drive shaft 12 at the top of the main frame 11.
As shown by the arrow A in FIG. 12, it is swingably supported as a fulcrum, which allows the pulling-out height position to be freely adjusted. The legs and the left and right frames 27 are connected by connecting means 30 shown in FIGS. 12 to 15.

That is, the connecting means 30 uses the bracket 31 having the arcuate mounting hole 31A having the drive shaft 12 as a fulcrum, and the left and right frames 2
7 above and below, and fixed to the main frame 11 at positions facing the front and rear legs 11B and 11C, while inserting the mounting bolts 32 provided on the front and rear legs 11B and 11C into the respective mounting holes 31A and tightening with the nuts 33. Therefore, by loosening the fastening of the nut 33, the swinging of the arrow A is allowed, and after the adjustment, the nut 33 is tightened to fix and hold the adjusted position.

A pair of auxiliary wheels 8 are arranged on the left and right in front of each traveling device 2, and each auxiliary wheel 8 is rotatably supported by a lower end of a swing arm 34 having a bell crank shape via a support shaft 35.
Further, the swing arm 34 is supported by the front frame by the support shaft 35 so as to move up and down between the descending position D in which the auxiliary wheels 8 support the vehicle body 1 together with the traveling device 2 substantially in parallel with the farm field and the ascending position U above this. Installed on 25.

Further, the swing arm 34 is interlockingly connected to an operation lever 37 via a rod 36 having a turnbuckle structure connected thereto, and can be operated up and down by the operation lever 37.

The operation lever 37 is fixed to both ends of a connecting shaft 38 that is rotatable around an axis extending over the upper portions of the left and right main frames 11, and the other end of the rod 36 is provided in the middle of the operation lever 37. It is pivotally supported and can be operated up and down. Furthermore, the operation lever 37, the rod 36 and the like are integrally provided on the left and right, and one of the operation levers 37 is moved up and down to move the auxiliary wheel 8 to the lowered position D. It is possible to operate in the ascending position U.

The swing arm 34 has a stopper 38 ', which is capable of abutting against the rear portion of the front frame 25, where the auxiliary wheel 8 encounters an obstacle or the like and the impact thereof. Does not cause the bending of the rod 36, and 39 indicates a spring for pulling up.

The distance between the front and rear wheels 28, 29 and the distance between the auxiliary wheel 8 and the front wheel 28 are larger than the groove width W of the groove 40 between the ridges in the field.

At the upper end of the rear frame 26, so as to project rearward,
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. Incidentally, 44 is a forward / reverse switching lever.

There are a pair of left and right belt covers 10 corresponding to the pair of left and right pull-out belts 3A and 3B, and each belt cover 10 is attached to a pair of left and right frames 27 with bolts or the like.

The pull-out belts 3A, 3B are for pulling out from the field while sandwiching the stem rods of the crop S such as ginger vegetated in the field from both left and right sides, and pulling the pull-out belts 3A, 3B from the field.
B is made of an elastic material such as rubber having JISA Shore hardness of 50 to 60 °, is wound around the driven pool 45 at the front end and the drive pulley 46 at the rear, and has a large number to clamp the stem S of the crop S from the left and right. It is guided by the guide pulley 47 of FIG.

As shown in FIG. 8, each pull-out belt 3A, 3B has three engaging projections 48 on the inner peripheral surface of the belt body, and two projections 49 on the outer peripheral surface at positions vertically displaced from the center. 50, respectively, the engaging projections 48 are fitted into the circumferential grooves of the pulleys 45, 46, 47, and the projections 49, 50 on the outer circumference are provided with a pair of pulling belts 3A, 3B.
The opposite parts, that is, the crop sandwiching parts, bite with a slight gap therebetween.

Engaging ridges 48 and ridges 49, 50 of the two pull-out belts 3A, 3B
Is formed by integrally molding or by forming a mountain-shaped member separately formed on the belt body by baking a V-belt on a flat belt, for example, one or more plural belts may be provided, and the engaging ridges 48 in the pull-out belt 3A may be provided. The positional relationship between the protrusions 49 and the protrusions 49 is the same as those of the extraction belt 3B.
B is formed in the same shape, and extraction belt 3B is extraction belt 3A
It is wound upside down against.

The crop S sandwiched between the pull-out belts 3A and 3B is folded in a zigzag shape as shown in FIGS. 8 and 9 due to the elastic deformation of the ridges 49 and 50 engaging with each other and the presence of the gap. The music is pinched and receives a strong pulling force due to the rearward movement of the pulling belts 3A, 3B.

Therefore, the guide pulley 47 is attached to the U-shaped support frame 51 by the pin shaft.
In order to prevent the pull-out belts 3A and 3B from coming off even when the upper side is moved in a narrowed shape as shown by an arrow B in FIG. 9
As shown in the figure, the pin shaft 52 is inclined so that the axial center spacing of the pin shaft 52 is wide on the upper surface side and narrow on the lower surface side. Further, the guide pulleys 47 are arranged in a zigzag manner as shown in FIG. 7, and when the stalks S are clamped by the pull-out belts 3A, 3B, the guide pulleys 47 facilitate a wavy elastic deformation.

The driven pulley 45 is attached to a driven shaft 54 provided at the front end through a tension adjusting mechanism 53, and the driven shaft 54
On the upper side of the stem rod of the crop, a pair of left and right pull-out belts 3A, 3
Left and right pair of scraping wheels 55,56,57,5 for scraping between B
A scraping device 61 having 8,59,60 is provided.

As shown in FIG. 2 and FIG. 3, the scraping device 61 uses bolts 63, 64 to mount the scraping wheels 55, 58 on the left and right driven pulleys 45 via cylindrical bodies 62A, 62B having different heights. Attaching, inserting the vertical axis 67, 68 into each boss portion 65, 66 of the scraping wheel 55, 58,
Provided detachably with stop bolts 69, 70, on the vertical axis 67, 68,
The scraping wheels 56, 57, 59, 60 are attached with stop bolts 71, 72, 73, 74, and the scraping wheels 55 to 60 are provided at intervals in the height direction, Moreover, the left and right wheels are displaced in the height direction.

Therefore, the stick S of the lower scraping wheels 55, 58, the scraping pawls of the middle scraping wheels 56, 59 and the scraping pawls of the upper scraping wheels 57, 58 are used to move the stem S of FIG. By the rotation shown by arrow C, it is possible to sequentially scrape toward the starting end of the pulling belt of the pulling device.

Here, the left and right claws of the wheels that are opposed to each other are displaced in the height direction to prevent the stem S from being compressed and broken during scraping, and thus the stem S Make sure to disconnect.

Of the wheels 55-60, wheels 55,58,57,60
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.

Incidentally, 75,76 is a dint color, in order to prevent the crops or the like from being entangled with the shafts 67,68 by the rotation of the vertical shafts 67,68 while holding the vertical intervals of the wheels.
It is loosely fitted to the vertical axes 67 and 68.

As shown in FIG. 4, an attachment frame 77 is attached to the front side of the machine body 1 by a connecting shaft 78.
Can be inserted and removed over the boss 79 on the machine body 1 side and the boss 80 on the mounting frame 77 side.
It is supposed to be removable.

The mounting frame 77 has a substantially V shape in plan view,
A cutting tool 83 and a scraping wheel 55 are attached to the mounting frame 77.
There are vertical axes 67, 68 with ˜60, and the vertical axes 67, 68 are supported at the tip of the mounting frame 77 by bearings 84, 85.

The mounting frame 77 is provided with a guide portion 86, for guiding the stem scraped by the scraping device to the nipping start end of the pulling belts 3A, 3B.
Has 87.

The cutting tool 83 is a disk cutter, and is arranged so as to be displaced to the right side from the drawing center line L-L in the embodiment, and has a cutting edge 83A on the outer circumference of the disk.

As shown in FIG. 19, the cutting tool 83 has a supporting shaft 89 which is erected on an arm 88 of a mounting frame 77 and which is rotatably mounted on the supporting shaft 89 via a bearing device 90, and is shown by a coil spring. A resistance applying device 91 is provided.

Therefore, the cutting tool 83 is designed to rotate only when it overcomes the resistance applying device 91. In addition, 92 in FIG. 19 is a support shaft.
The labyrinth means for preventing foreign matter intrusion against 89 is shown.

The cutting portion 93 of the cutting tool 83 is located before the withdrawal start ends 94 of the withdrawal belts 3A and 3B, and the stalk S is cut before sandwiching the withdrawal belt stalk there.

The cutting portion 93 includes the cutting edge 83A of the cutting tool 83 and the scraping wheel 5
It is composed of the occlusal part of the claw 56A of 6, and the cut part 93
Is located slightly below the gantry 19 and above the starting end of the drawing device 3.

The claw 56A of the wheel 56 is adapted to push the stem S into the cutting portion 93, and the upper surface of the claw 56A is brought into sliding contact with the lower surface of the outer periphery of the cutting tool 83.

Therefore, the stem S that has been scraped and pushed by the wheel 56
Is cut in cooperation with the cutting edge 83A of the cutting tool 83, and when this cutting resistance is larger than that of the resistance imparting device 91, the cutting tool 83
Is driven to rotate, and the rotation of the wheel 56 enables the cutting stem to be discharged while supporting it on the right side in the figure.

Here, as shown in FIG. 23, 56A of the wheel 56 is formed in a portion 56B in which the outer peripheral portion is bent downward, so that the sliding contact with the cutting edge 83A is made smooth.

Further, as shown in FIG. 4, a cut portion 94 is formed in a portion of the arm 88 corresponding to the cut portion 93, so that the cut portion of the crop (stem) is opened downward to the cutting completion point of the stem.
It is easy to invade 93 and can be completely cut.

Reference numeral 95 denotes a stem guide device, which is a bottom plate that covers the upper surface of the cutting tool 83.
96 is fixed on a mounting frame 77 via a stay 97, and a first guide plate 98, which is located between the scraping wheels 59 and 60 and covers the vertical axis 68, is erected on the bottom plate 96. The shape of the plate 98 is maintained, and the first guide plate 98 has a left front portion at the foremost end as a curved portion 98A as shown in FIG. 2 and is inclined rearward to the right of this portion. Has a guide section 98B,
Extending towards the cutting part 93, scraping wheel 58-60
Is exposed from the curved portion 98A, and the scraping wheels 55 to 5
The outer peripheral edge of 7 is overlapped with the guide portion 98B in a plan view, and the stem scraped by the scraping device is scraped and guided rightward there.

A second guide plate 99 is arranged above the first guide plate 98 and above the wheel 60, and the second guide plate 99 has a curved portion 99A having substantially the same shape as the first guide plate 98 in a plan view. It has a guide portion 99B and is attached by a stay 100.

A third guide plate 101, which is substantially oval in plan view and surrounds the outer periphery of the vertical axis 67, is provided between the wheels 56 and 57 of the scraping device.
It is attached by a stay 102 protruding outward from the front end of 7 and a stay 103 standing upright from this stay,
Here, the curved portions 98A, 98A of the first and second guide plates 98, 99 and the third
The curved portion 101A of the guide plate 101 forms the first guide passage 102 'which is open at the front and has a rearward tapered shape, and the cutting portion 9A.
A second guide passage 103 'that is bent toward 3 and extends outward from the cut portion 93 is formed in an outwardly widened shape, and a discharge chute 104 is formed at the bottom of the second guide passage 103' in an inclined downward shape. It is attached to the mounting frame 77 with bolts 105 (No. 19).
See figure).

In the second guide passage 103 ', rather than in the first guide plate 97,
The second guide plate 98 is located rearward in a plan view, and a foot roller portion 106 is formed there. In the foot roller portion 106, an upper portion of the second guide plate 99 is a forwardly bent pushing portion. 99
It has C (see Fig. 24).

This is the pushing part 9 while catching the cut stem with the roller 106.
9C ensures that the foil 57 is bite into the nail and facilitates the discharge of the cut stem through the discharge 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, and the fourth guide plate 107 uses the claws of the wheel 57 to move the cutting stem forward. It is prevented from scratching to the back and promotes the release through the release chute 104.

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

Here, the scraping wheel 55-
60 has a phase shifted in the height direction, and wheels 55 to 57 on the stem discharge side are set to a position higher than the other wheels 58 to 60 corresponding to them.

Since all of the wheels 57 to 60 are exposed to the front of the guide plate, the claws of these wheels have no cutting edges, ensuring safety.

Reference numeral 108 denotes a pair of left and right dividers, which are formed by bending a bar material into a triangular shape in a side view.
The upper and lower ends of the right and left bosses 109 are detachably attached to the right and left bosses 109, and the lower ends of the right and left bosses 109 are detachably attached to the bosses 110 of the left and right frames and are fixed with set screws 111.

Here, the cutting tool, the raking device, and the stalk guide device 95 are unitized as shown in FIG. 18, and the wheels 55 and 58 of the lower stage of the raking device are left detachable by the unit.

To attach and detach this unit, pull out the connecting shaft 78
The connection with the mounting frame 77, remove the set bolts 69, 70 on the vertical axes 67, 68, and the set screw 11 of the divider to remove them as shown in Fig. 18. Done.

As described above, by removing the unit 112 including the cutting tool 83, it is easy to load the harvester on the wagon and the like, which is advantageous for the storage space, and depending on the crop, the height of the vegetation is high. Some are low, to accommodate the pulling harvest of this low crop.

As shown in FIG. 16, the tension mechanism 53 is configured by attaching a tension arm 114 to a cylinder body 113 with a tension spring, an adjusting bolt, and the like (not shown), and adjusting the tension of the pull-out belt through a driven pulley. As shown in FIGS. 20 and 21, a scraper tool 115 for a pulley groove in a driven pulley is attached to the arm 114.

The left and right scraping wheels 55 to 60 have mountain-shaped claw portions on the outer circumference at equal intervals in the circumferential direction in order to scrape the stems of the vegetated crop S between the pull-out belts 3A and 3B. It has a substantially sprocket shape, is larger than the driven pulley, and has a peripheral speed higher than the peripheral speed of the pulley and the moving speed of the pull-out belts 3A and 3B. The left and right scraping wheels 55-60 rotate synchronously, and the rotation loci of the left and right claws overlap,
It is configured so that it does not contact like a gear and is in an occlusal state with a gap interposed, and the stem is sandwiched in the gap and sent backward.

The drive pulley 46 is arranged near the rear wheel and
As shown in FIGS. 5, 5 and 6, the output shafts of the mission device are attached to the lower ends of vertical transmission shafts 116, 117 which are interlocked with each other via bevel gear mechanisms.
Cylinder collars 118 and 119 are loosely fitted in the 17.

Therefore, when the drive pulley 46 rotates in the direction D shown in FIG. 5, the pull-out belts 3A and 3B are circulated in the direction E shown in FIG.

Of the transmission shafts 116 and 117, the left transmission shaft 116 has two upper and lower
Step scraping wheels 120, 121 are attached, and these wheels 120, 121 are substantially sprocket-shaped,
The tip of the outer peripheral claw is located near the holding surface (pulling center line) of the pulling belt.

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

The guide member 122 is wrapped around the claw bottoms of the scraping wheels 120 and 121 in a plan view, and the latter half thereof extends outward in the direction orthogonal to the working direction and ends near the inside of the main frame 11 of the rear wheel. There is.

Reference numeral 123 denotes a scraping chute that discharges the cut stem inside the rear wheel together with the scraping wheels 120, 121, the guide member 122, and the guide plate 124.
A substantially L-shaped stay 125 is attached to the frame of 3A in plan view, and is attached to the stay 125 with bolts 126.

The scraping chute 123 has a narrow gap between the upper edge surface of the scraping chute 123 and the lower surface of the pull-out belt 3A and extends a little right side of the pull-out center line in parallel with the straight line portion 123A, and its front end portion is As shown in FIG. 1, a rearward downward inclined portion 123B is formed, and a portion rearward of the end portions 125 of the pull-out belts 3A, 3B is formed as a guide portion 123C inclined so as to guide the cutting stem to the left. There is.

The guide plate 124 is mounted on the belt cover 10 of the right pulling belt 3A, and is guided rearward from the end portion 125 to the guide member 1
Along with 22, the scraping passage 126 is configured to bend to the left, and is made of an elastically deformable plate material.

A rear cutting rear portion 127 is provided on the lower surface of the support frame 51, slightly in front of the front end of the guide plate 124.

As shown in FIGS. 7 and 8, the rear cutting device 127 uses the pin shaft 52 and the nut 128 to move the linear blade 129A,
A pair of flat plate cutting tools 129, 130 having 130A, a straight blade 129
The A and 130A are detachably attached so as to have a scissor shape, the linear blades 129A and 130A intersect in the middle thereof, and this intersection is located on the drawing center line.

Therefore, in the process of cutting the middle part of the foliage with the above-described cutting tool 83 and carrying the stem having the bulb portion backward while being pulled out by the pulling belts 3A, 3B, the straight blade 129 of the cutting device 127.
The bulb portion that has been shredded again by A and 130A and pulled out is dropped, and the stem sandwiched by the pulling belts 3A and 3B is discharged to the left via the guide plate 124 and the like.

Here, the bulb portions are sequentially dropped to the field between the traveling devices, and the cut stems are first dispersedly discharged to the right side in the upper part and to the left side in the middle part.

The pulling belts 3A and 3B cause a so-called mouth opening phenomenon in the expanding direction due to cutting resistance of the flat cutting tools 129 and 130, but in order to prevent this, a pair of left and right support frames are provided at the rear of the cutting tools 129 and 130. 51 the connecting member 131 and the fastener 132
Are connected to each other by.

The flat plate cutting tools 129, 130 have their overlapping portions pivotally supported by a pivot pin 133 or the like, and are removable by a nut 128, and the blade portion is in the blade edge longitudinal direction as shown in FIG. groove
Those with 129B are preferred.

As shown in FIG. 16 and FIG. 17, this harvester has the front end raised, and the rear wheel 29 and the handle 41 have a stand function. It is designed to be between the rear wheel 29 and the handle 41.

In this way, by making the rear wheel 29 and the handle 41 stand, maintenance of the tension mechanism 53, the rear cutting device 127 and the like is facilitated.

10 and 11 show the chain tension mechanism in the main frame 11.
134 shows a tension mechanism 134 in which a U-shaped bracket 135 is swingably mounted in the main frame 11 with a fastener 136 as a fulcrum, and a guide roller 137 that comes into contact with a chain is mounted on the fastener 136. While being fitted rotatably, a tension guide roller 138 is provided above the guide roller 137,
The bracket 135 is adapted to be swingably adjusted by a tension bolt 139. The notch 140 is for avoiding interference between the inner end of the main frame and the bracket 135.

Further, FIG. 22 is another example of the front cutting device, in which the axis of the cutting tool 83 is not vertical but the cutting start side is opened and adjusted so that the cutting tool 83 and the wheel are in sliding contact with each other on the cutting end side. As a result, the claws of the wheel are smoothly introduced into the cutting tool 83.

The belt cover 10 prevents the leaves and stems from being trapped on the inner peripheral sides of the pull-out belts 3A and 3B and causing the winding.

In the above embodiment, when the crop S such as ginger is pulled out, it is run on the low floor ridge in the orthogonal direction. That is, when traveling forward while driving each part, as shown in FIG. 11, the pair of left and right scraping wheels 55 to 60 scrape the upper part of the stalk of the crop rearward, and the pair of left and right pull-out belts 3A on the rear side. Since it is fed between 3B, the pair of pull-out belts 3A and 3B sandwich the stem rod of the crop from both left and right sides.

Before the stalk is sandwiched, the stalk is cut at a position slightly lower than the pedestal 19 by the action of the cutting tool 83 and the scraping wheel 56, and the cut stalk is discharged to the right outside.

The bulb-shaped stem, whose middle portion is cut off, is relatively fed to the pull-out starting end by the guide portion of the mounting frame 88.

Then, the pull-out recording device 3 pulls the crop upward while conveying the crop relatively rearward at a speed synchronized with the traveling device 2.

That is, the crop S, which is vegetated in an upright state and whose upper part is cut off, tears down the bulb of the bulb from the front half of the pulling device 3, that is, between the auxiliary wheel 8 and the front wheel 28, and the bulb near the center of gravity G. After pulling out SA, completely pulling out the bulb SA of the crop in this way, with the cutting device 127 at the rear end of the pulling belts 3A, 3B, further, after cutting the stem, the stem bar with a scraping wheel. Scratch backwards and leftward.

When the unit including the cutting device is removed as shown in FIG. 18, the long stalk that does not cut the stalk hits the front frame, the pedestal, etc. and is bent due to the carrying force, and the rear cutting device Will be disconnected in.

The center of gravity G of the machine body 1 and the like is near the front wheel 28, and a large pulling force is required in this vicinity.
Therefore, the traveling device 2 can reliably support it.

Further, since the main frame 11 has the window 11A that allows the inside to be visually recognized in a side view, the work status during conveyance can be confirmed from the outside.

When traveling on the low floor ridge in the orthogonal direction, the front wheel 28 and the rear wheel 29 of the traveling device 2 and the auxiliary wheel 8 in front of the front wheel 28 hold the machine body 1 in a constant posture substantially parallel to the field. That is, front and rear wheels 2
When the wheels 8 and 29 are on the ridges, the front and rear wheels 28 and 29 support the airframe 1 even if the auxiliary wheels 8 are on the groove, and when the front wheels 28 are on the grooves, the auxiliary wheels 8 and the rear wheels 29 are on the airframe 1. When the rear wheel 29 is in the groove, the auxiliary wheel 8 and the front wheel 28 support the vehicle body 1.
I support. Therefore, the machine body 1 can be supported substantially parallel to the field regardless of the presence or absence of the groove.

Further, since the center of gravity G of the entire machine body 1 is near the upper portion of the front wheel 28, it is sufficient to lightly lift the handle 41 and freely support the work vehicle.

(Effects of the Invention) The present invention is as described above, and a scraping device having a pair of right and left scraping wheels is provided on the starting end side of the pulling device, and the stalk of the crop scraped by the scraping device is described above. Since a cutting tool is provided for cutting the plucking device before it is sandwiched by the plucking clamp and above the pulling belt, the densely entangled crops can be untied and fed into the start end of the plucking clamp in an orderly manner. it can.

An arch-shaped (gate-shaped) connecting frame for connecting the left and right frames to which the pull-out clamps are attached by providing a cutting tool for cutting the stalks of crops before and between the pull-out clamps. The attachment device may be anywhere as long as it is behind the cutting tool, and the degree of freedom of the attachment position is improved.

That is, if a cutting tool that cuts a stalk is provided midway in the conveying direction of the pull-out sandwiching body, the connecting frame can be provided only at a limited position behind the cutting tool, whereas in the present invention, the connecting frame is provided. Not only is the degree of freedom of the mounting position improved, but the connecting frames can be provided at the front and rear, and it is possible to cope with large pull-out resistance.

Further, since the cutting tool is provided so that the cutting position is displaced to one side from the drawing center line of the drawing clamp, the stem cut by the cutting tool is provided with the chute that discharges outward in the direction of deviation of the cutting tool. , The cut stalk is not sent to the pulling belt, and is reliably discharged to one side in the traveling direction, and there is no problem in pulling out the bulb-attached stalk.

Further, a pair of right and left scraping wheels are arranged in a plurality having a gap in the height direction and displaced in the height direction, and the scraping wheel at the uppermost stage on the discharge side of the cut stem is Since the cutting stem is located higher than the other scraping wheel corresponding to the cutting wheel, the cutting stem can reliably receive the throwing action of the wheel and can be reliably discharged to the side of the machine body.

Since a pair of left and right scraping wheels and a cutting tool are provided on a common mounting frame, and the mounting frame is provided with a guide portion for guiding the scraped stalk to the holding start end of the pulling device, the cutting tool and the wheel. By attaching and to the regular position, the relationship between the two can be properly held, and the crop with bulbs can be introduced to the pulling start end by the guide portion.

[Brief description 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 of the same, FIG. 3 is an elevation sectional view in front view,
4 is a plan view showing a scraping device and a cutting device, FIG. 5 is a plan view of a scraping device, FIG. 6 is a rear view of the same, and FIG. 7 is a bottom view showing a pulling belt and a rear cutting device. 8 is a sectional view taken along line XX of FIG. 7, FIG. 9 is a sectional view taken along line YY of FIG. 7,
FIG. 10 is a partial cross-sectional side view showing the inside of the main frame, FIG. 11 is an elevational sectional view of the same, FIG. 12 is a side view showing the main frame part, and FIG. Fig. 14 is a front view of a bracket for connecting the main frame and the pulling device, and Fig. 15 is a side view of the same.
Figure 16 is a front elevational view of the harvester on stand, No. 17
The figure is also a side view, FIG. 18 is a side view when the cutting unit and the like are removed, FIG. 19 is an elevation sectional view of the front cutting tool, FIG. 20 is a plan view of the tension mechanism, and FIG. 21 is the same. Sectional view, No.
22 is an elevation view showing another example of the front cutting tool, FIG. 23 is a plan view and a side view showing the claws of the scraping wheel, FIG. 24 is an overall perspective view, and FIG. 25 is a rear cutting tool. It is a top view which shows the other example. 1 ... Airframe, 2 ... Traveling device, 3 ... Extraction device, 55-60
…… Scraping wheel, 61 …… Scraping device, 77 …… Mounting frame, 83 …… Front cutting tool, 104 …… Discharging chute.

Claims (4)

[Claims] 1. A harvesting machine for ginger and the like, comprising a pair of left and right traveling devices and a pulling device composed of a pair of left and right pulling clamps for pulling while pulling back crops such as ginger while transporting the crops. A scraping device having a pair of scraping wheels is provided at the starting end side of the pulling device, and the stalk of the crop scraped by the scraping device is sandwiched by the pulling sandwiching body in the pulling device and before the pulling sandwiching body. A harvesting machine such as ginger, characterized in that a cutting tool for cutting above is provided, and an arch-shaped connecting frame that connects the pair of left and right frames on which the pair of left and right pull-out sandwiching bodies are mounted is connected to each other. 2. A cutting tool is provided such that the cutting position is displaced to one side from the drawing center line of the drawing holding body, and a chute for discharging the stem cut by the cutting tool to the outside and below the cutting tool in the shifting direction. The harvester for ginger or the like according to claim 1, wherein the harvester is provided. 3. A pair of left and right scraping wheels are arranged at intervals in the height direction and displaced in the height direction, and are arranged at the uppermost stage on the discharge side of the cut stem. The harvester for ginger or the like according to claim (1) or (2), wherein the wheel is located higher than the other scraping wheel corresponding to the wheel. 4. A pair of right and left scraping wheels and a cutting tool,
The harvesting machine for ginger or the like according to claim 1, wherein the harvesting machine for ginger or the like is provided on a common mounting frame, and the mounting frame is provided with a guide portion for guiding the scraped stalk to a holding start end of the pulling device. .