JPH085B2 - Harvesting machine for ginger etc. - Google Patents

Description

TECHNICAL FIELD The present invention relates to a harvester for pulling and harvesting crops 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.

(Problems to be Solved by the Invention) By the way, crops have long and short lengths, and it is necessary to adjust (adjust) the pull-out position of the pull-out device (pull-out belt) in the height direction in order to cope with this.

However, in the above-mentioned prior arts 1 and 2, the pulling-out position cannot be adjusted.

Therefore, if the traveling device (wheel) that supports the entire device is adjusted in the vertical position to adjust the pull-out height position, the traveling device receives the entire load, and it is difficult to easily adjust it. there were.

In view of the problems of the prior art, the present invention provides a main frame having a traveling device with a pedestal having a pulling device so as to be vertically swingably fixed, so that the pulling height position of the pulling device is easily and easily provided. The purpose is to be adjustable.

(Means for Solving the Problem) The present invention provides a pair of left and right traveling devices, a pulling device including a pair of left and right pulling pinching bodies that pulls out a crop while sandwiching a crop such as ginger, and a steering handle, In order to achieve the above-mentioned object in a harvester such as ginger,
The following technical measures are taken.

That is, the present invention provides a pair of left and right traveling devices 2 that can stably travel in a grounded state, below the pair of left and right main frames 11,
A space through which the crop S can pass in the front-rear direction is formed between the main frames 11, and the drawing device 3 is arranged in the space so that the crop S is sandwiched between the main frames 11 and the crop S is drawn while being conveyed backward. The pulling-out device 3 is swingably moved up and down with the upper part of the pair of left and right main frames 11 as a fulcrum so that the pulling-out height position can be adjusted by changing the angle.
It is characterized in that a connecting means 30 is provided at a rear portion of the pulling device 3 in a rearwardly extending shape, and is provided with a connecting means 30 for freely disconnecting the pulling device 3 and the main frame 11 in order to change the angle.

(Operation) According to the present invention, in order to adjust the drawing height position of the drawing device 3, the nut 33 in the connecting means 30 shown in FIG. 13 is used.
Loosen, and after that, the steering handle as shown by arrow A in Fig. 12
When 41 is operated, the pulling device 3 arranged in the space between the pair of left and right main frames 11 is swung about the drive shaft 12 as the swing fulcrum as shown by an arrow A in FIG. The angle is changed and the pull-out angle is adjusted along with the pull-out height position, which makes it possible to adapt to short and short crops.

At the time of this adjustment, the pulling device 3 can be adjusted while being supported by the traveling device 2, and after the adjustment, the nut 33 is fixed by tightening it.

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

FIGS. 1 and 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 sandwiching 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.
The top of the mission device 5 is covered with a fuel tank 9A,
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.

A space through which the crop S can pass in the front-rear direction is formed between a pair of left and right main frames 11, and a pulling-out device 3 for pulling out the crop S while conveying the crop S backward is disposed in the space. A mount 19 for the drive means 6 is provided at the top between the main frames 11, and on this mount 19, the engine 4 is arranged in the front part and the mission device 5 is arranged in the rear part.
A belt 22 is wound around a pulley 20 on the output shaft of the above and a pulley 21 on the input shaft of the mission device 5, and the bonnet 9 covering the engine 4 can be opened and closed centering on a fulcrum shaft 23 at the front thereof. At the same time, the closed position is secured by the stopper 24, which facilitates maintenance of the auxiliary devices of the engine 4, such as plugs and carburetors.

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 pedestal 19, the front frame 25, the rear frame 26, and the left and right frames 27 form the airframe 1 here.

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 an arrow A in FIG. 12, it is swingably supported by a fulcrum as a fulcrum.
The withdrawal height position of the main frame 11 can be adjusted by changing the angle. Therefore, the pair of left and right front and rear legs of the main frame 11 and the left and right frames 27, that is, the withdrawing device 3, is connected to the connecting means 30 shown in FIGS. The connection can be released freely.

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 and operating the handle 41 in the direction of the arrow A, the pedestal 19 allows the swing of the arrow A, and after adjustment, the nut 33 is tightened to fix the adjustment position. I am trying to hold it.

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, there are a pair of left and right operation levers 37, rods 36, etc., and one of the operation levers 37 is moved up and down to move the auxiliary wheel 8 to the lowered position D. It can be operated to the raised position U.

The swing arm 34 has a stopper 38, and this stopper 38 can contact the rear portion of the front frame 25.
Here, the auxiliary wheel 8 does not encounter an obstacle or the like so that 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 portion 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. In addition, 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 periphery are a pair of pull-out belts 3A,
The opposite portions of 3B, that is, the crop holding portions are 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 has bolts 63, 64 on the left and right driven pulleys 45, and the scraping wheels 55, 58 via the cylinders 61, 62 having different heights. The vertical shafts 67 and 68 are fitted into the boss portions 65 and 66 of the mounting and scraping wheels 55 and 58, and are detachably provided with the stop bolts 69 and 70. , 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 has a guide portion 86, which guides the stalks scraped by the scraping device to the gripping start ends of the pull-out 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 overlaps with the guide portion 98B in a plan view, and guides the stem scraped by the scraping device to the right side here.

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 and 98A of the first and second guide plates 98 and 99 and the curved portion 101A of the third guide plate 101 form the first guide passage 102 and the rearward tapered shape with the start end of the scraping. Then, the second guide passage 103 is bent toward the cut portion 93, and the outer side of the cut portion 93 is an outwardly expanded second guide passage 103. At the bottom of the second guide passage 103, the discharge chute 104 is formed downward. It is attached to the attachment frame 77 in an inclined shape with bolts 105 (see FIG. 19).

In the second guide passage 103, the second guide plate 98 is located rearward of the first guide plate 97 in a plan view, and a foot roller portion 106 is formed there. 2 The upper part of the guide plate 98 is a pushing part 98 bent forward.
It has C (see Fig. 24).

This is the pushing part 9 while catching the cut stem with the roller 106.
By 8C, the bite of the foil 57 is secured to the nail, and the release of the cut stem through the release chute 104 is facilitated.

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 front outside 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. It

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 to 60 rotate synchronously, and the loci of rotation of the left and right claws overlap, but they do not abut like gears, they are in an occlusal state with a gap, and the stem is inserted in the gap. It is configured to feed backward while sandwiching.

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, which discharges the cutting stem together with the scraping wheels 120, 121, the guide member 122, and the guide plate 124 to the inside of the rear wheel. A stay 125 having a shape is attached to the stay 125 by 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, an inclined portion 123B is formed on the lower rear side, and a rear portion from the end portion 125 of the pull-out belts 3A, 3B is an inclined guide portion 123C so as to guide the cutting stem to the left. .

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 all-cutting device, in which the axis of the cutting tool 83 is not vertical but the cutting start side is opened and adjusted, and the cutting tool 83 and the wheel are slidably contacted at the cutting end side. With this, 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, is relatively fed to the pulling-out starting end by the guide portion of the mounting frame 88.

Then, the pulling / extracting 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. The SA is pulled out, and the bulb SA of the crop is completely pulled out in this way, and then the cutting device 127 at the rear end of the pulling belts 3A and 3B further cuts the stalk and then moves the stalk back with the scraping wheel. Scrape to the left.

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 whose inside can be visually recognized in a side view, it is possible to confirm the working condition during conveyance 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.
Support. Therefore, the machine body 1 can be supported substantially parallel to the field regardless of the presence or absence of the groove.

(Advantages of the Invention) The present invention is as described above, and the pulling-out device disposed in the space formed between the pair of left and right main frames has a pulling-out height by pushing down or pushing up the steering handle extending rearward from the pulling-out device. Since the pull-out angle can be adjusted along with the position, even short and short crops can quickly respond to this.

Also, since the load is supported by the traveling device during this adjustment, the adjustment work is stable, and after the adjustment, the connecting means may be fixed, and the proper position can be set according to the length of the crop here. .

[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, 11 ...
Main frame, 19 ... Frame, 30 ... Connection means.

Claims (1)

[Claims] 1. Harvesting of ginger and the like provided with a pair of left and right traveling devices, a pulling device composed of a pair of left and right pulling and sandwiching bodies for pulling out crops such as ginger while conveying them backward, and a steering handle. In the machine, a pair of left and right traveling devices (2) capable of stably traveling in a grounded state are provided below the pair of left and right main frames (11).
A space through which the crop (S) can pass in the front-rear direction is formed, and the pulling-out device (3) is arranged in the space so that the crop (S) is sandwiched and conveyed while being pulled backward. The pulling-out device (3) is composed of the pair of left and right main frames (11).
The upper part is pivoted up and down and is supported so that the pull-out height position can be adjusted by changing the angle. The steering handle (41) is provided at the rear portion of the pull-out device (3) in a rearward extension shape, A harvesting machine for ginger or the like, characterized in that it is provided with a connecting means (30) for disconnecting the pulling device (3) and the main frame (11) in order to change the angle.