JP3500829B2 - Root cropper - Google Patents

Description

Description: BACKGROUND OF THE INVENTION [0001] 1. Field of the Invention [0002] The present invention relates to a harvester for root vegetables such as carrots, which has good workability. 2. Description of the Related Art An example of a conventional root vegetable harvesting machine will be described below, taking carrots as an example of root vegetables. A conventional carrot harvester digs up a carrot after raising the foliage of the carrot, holding the carrot with a pair of endless belts that rotate in opposite directions, and then transporting the carrot to the rear of the harvester with the sandwiching conveyor belt. It is a machine that cuts foliage in the process, transports it further backward, and stores the root vegetables in a basket. [0003] The carrot harvester of the prior art described above runs along a carrot planting strip and performs the following series of operations that cause foliage.
If the carrot planting strip is bent, it is necessary to change the running direction of the carrot harvester so that the carrot planting strip is located at the center of the pair of raising devices or the pair of nipping and conveying belts. [0004] Therefore, the operator needs to always operate while monitoring the carrot planting streak. In addition, if the carrot planting streak is too large, the bend in the traveling direction of the harvester becomes large, and the machine body shakes. . Furthermore, if the center of the pair of raising devices or the pair of nipping and conveying belts cannot be arranged along the bend of the carrot planting strip, a digging error will occur. SUMMARY OF THE INVENTION It is an object of the present invention to provide a root vegetable harvesting machine which can securely pinch foliage without correcting the running direction of the body itself. Another object of the present invention is to provide a root vegetable harvesting machine which can quickly cope with the bending of a root vegetable planting line and has no digging mistakes. The above object of the present invention is achieved by the following constitution. In other words, the left and right pair of holding the conveyor belt for conveying-out pull unplug sandwiching at least foliage 9
In Root crop harvester having a clamping and conveying device provided with, the clamping and conveying device, the guide rails 18 for horizontal movement
Water that can move in the left-right direction with respect to the vehicle body 2 along
A position detecting means 21 for detecting the position of the foliage , provided on the flat frame 16 , and a water for moving the frame 16 in the left-right direction in relation to the detection result of the position detecting means 21.
This is a root crop harvester provided with a flat control hydraulic cylinder 19 . The following specific examples of the means for moving the nipping and conveying device in the left-right direction with respect to the advancing direction of the machine body in relation to the detection result of the position detecting means of the root crop harvester of the present invention are as follows. . That is, the horizontal frame is independent of the frame of the body of the machine. And raising device on this horizontal frame, nipping and conveying belt, tapping belt,
Each device such as a leaf discharge belt is provided. A horizontal guide is provided at the lower part of the frame, and the horizontal frame can be moved horizontally by a horizontal control cylinder provided at a side end of the horizontal frame. [0010] Thus, the root crop harvester of the present invention can quickly react to the bending of the root crop planting strips on the ridge, and does not need to be swayed. You can work easily. According to the root crop harvester of the present invention, the foliage can be securely clamped without correcting the direction of the body itself. Further, drilling Ri-up mistake root vegetable is reduced because the clamping root vegetable foliage in the middle between the clamping conveyor belt. An embodiment of the present invention will be described with reference to the drawings. However, the present invention is not limited by the following examples. FIG. 1 is a side view of the carrot harvester of the present embodiment, and FIG. 2 is a plan view of the carrot harvester as viewed from above. The carrot harvester is a crawler 1 and the crawler 1
A car body 2 supported on the axle of the car, a carousel 3 supported by the car body 2, and a carrot front and rear conveying unit 6 and a carrot forward conveying unit 6 provided behind the caulking unit 3 for causing carrot foliage. A storage section is provided at the back for storing harvested carrots. The raising device 3 is a device for sequentially sending out a pair of raising rugs 4 for raising carrot foliage onto the field ground, and the carrot foliage caused by the raising device 3 is supplied to a predetermined portion of the front transport unit 5. Is held between a pair of endless belt-like holding / conveying belts 9 rotating in opposite directions at a distance of, and is conveyed rearward, and the foliage is transferred and changed between the pair of endless belts of the rear conveying section 6. The endless belt of the rear transport section 6 includes a head alignment belt 10, a leaf cutting belt 11 and a leaf discharge belt 12 disposed above the head alignment belt 10. Also,
At the rear position of the head alignment belt 10, a disk-type leaf cutting cutter 14 that is driven to rotate in the horizontal direction by the leaf cutting belt 11.
The foliage cut by the cutter 14 is discarded by the leaf discharge belt 12 to the outside outside the rear of the harvester. The roots from which the foliage has been cut are sent to a container (not shown) by the storage belt 15 of the storage unit. The feature of this embodiment is that a horizontal frame 16 is provided independently of the car body (body frame) 2 of the carrot harvester, and the raising device 3, the nipping and conveying belt 9, the head alignment belt 10, and the leaf cutting are provided on the horizontal frame 16. A belt 11 and a leaf discharge belt 12 are provided, and a horizontal frame 16 is provided.
A guide rail 18 for horizontal movement is provided at a lower portion of the horizontal frame 16, and a horizontal control hydraulic cylinder 19 provided at a side end of the horizontal frame 16 allows the horizontal frame 16 to move in the horizontal direction. A pair of direction control sensors 21 for detecting the presence of carrot foliage and controlling the running direction of the harvester are provided on the front of the raising device 3. The direction control sensor 21 may be provided with a position sensor or an on / off switch on the stem of the pressure-sensitive sensor to observe the movement of the direction control sensor 21 or measure the distance between the foliage with an ultrasonic sensor. The bend of the carrot planting strip on the ridge of the field is determined when only one of the pair of direction control sensors 21 detects foliage, and it is determined that the planting strip is bent. When neither of the sensors 21 senses the foliage, it is determined that the traveling direction of the trigger device 3 to which the sensor 21 is attached is along the planting streak. In this way, when the pair of direction control sensors 21 detects the bending of the carrot planting strip, a signal is sent to a control box (not shown) to operate the hydraulic cylinder 19 for horizontal control, and the horizontal frame 16 is moved to the guide rail 1.
8 to move horizontally. [0020] With the above configuration, the carrot harvester quickly responds to the bending of the carrot planting strips, the shaking of the body is eliminated, and the machine need only be run straight, so that detailed operations are not required and digging work is easy. become able to. In addition, carrot foliage can be always pinched at the center between the pair of pinching and conveying belts 9, so that carrot digging errors are reduced. As shown in the side view of the main part of FIG. 3, the carrot harvester is provided with a work frame 22 independent of the vehicle body (body frame) 2, and is raised on the work frame 22 by the raising device 3, the sandwiching and conveying belt 9, Each device of the head alignment belt 10, the leaf cutting belt 11, and the leaf discharging belt 12 is provided,
The work frame 22 may be connected to the vehicle body 2 by a horizontal control hydraulic cylinder 19 or the like, so that the work frame 22 is always kept automatically horizontal. The work frame 22 includes a frame portion provided in a direction parallel to the nipping and conveying belt 9 and a substantially horizontal portion provided behind the frame portion. Rotation shafts 23 and 24 that rotate in a substantially horizontal direction are provided at the rear end.
A front substantially horizontal rotation shaft 23 is connected to a support arm 27 provided with a vertical rotation shaft 26, and a rear substantially horizontal rotation shaft 24 is connected to a support arm 30 provided with a vertical rotation shaft 29. 27 and 30 are supported by the body 2 of the body of the machine. The front vertical rotation shaft support arm 27 is a U-shaped member, and the vertical rotation shaft 26 is rotatably supported by the vehicle body at the bent portion of the U-shape. Is provided with a hydraulic cylinder 20 for rotating the arm in the vertical direction about the bent portion.
As the support arm 27 rotates about the rotation shaft 26, the work frame 22 moves up and down. The rear vertical shaft support arm 30 is provided on the vehicle body 2. The substantially horizontal rotation shaft 29 connected to the rear vertical rotation shaft support arm 30 rotates the rotation shafts 23 and 24 in the left and right direction with respect to the body traveling direction to control the posture of the work frame 22 in the horizontal position. Hydraulic cylinder for horizontal control 1
9 are provided. According to the above configuration, when the machine body is tilted, the work frame 22 is tilted to the opposite side to the machine body, and the work frame 22 can automatically always be kept horizontal. Therefore, when the carrot is pulled out, the nipping and conveying belt 9 can always pull out the carrot in the vertical direction with respect to the ground, so that the carrot is not broken or broken, and even if one side of the crawler 1 falls into the groove of the ridge, The digging part can be kept horizontal. In addition, even when the head is aligned with the head aligning belt 10, the head of the carrot is arranged in a horizontal position (the carrot hangs in the vertical direction), so that oblique cutting of the foliage does not occur. FIG. 4 (a side view of a main part) and FIG. 5 (AA of FIG. 4)
FIG. 2 shows another configuration for always keeping the rear transport unit 6 in a horizontal position. A pair of arms 32 having a pair of horizontal rotation shafts 24a and 24b provided respectively in front and behind a work frame 22, which is a support frame of the nipping and conveying belt 9, is provided, and a front end of the arms 32 is provided. Is supported by the support member of the head alignment belt 10, and the rear end is supported by the chain case 34 via the universal join 33. Then, as shown in FIG.
A cylinder 3 for vertically moving the end of a stay 36 connecting the pair of horizontal rotation shafts 24b to one end of the cylinder 3
7 is provided. At the other end of the stay 36, a member 38 serving as a fulcrum for the vertical movement of the cylinder 37 is provided on the working arm 22. A horizontal sensor 40 is provided in the center of the stay 36, and the cylinder 37 is moved up and down in accordance with the detection value of the sensor 40, so that the rear transport unit 6 can always be kept at a horizontal position. In this way, when the carrot is pulled out, the rear transport section 6 can be kept in the horizontal position, and the head alignment belt 10 can be maintained.
The head of the carrot is arranged in a horizontal position (the carrot hangs in the vertical direction) even when the tapping is performed, and oblique cutting of the foliage does not occur. FIG. 6 is an enlarged view of the leaf cutting cutter 14 shown in FIG.
Chain case 34 for driving the head alignment belt 10 etc.
And the carrot foliage (neck) may be cut straight in the horizontal direction regardless of the left and right inclination of the body. Leaf cutter 14 and chain case 34
FIG. 7 shows an arrow view of the cut surface of the joint portion 14a from the harvester side view, and FIG. 8 shows an arrow view from the harvester rear direction. FIG. 9 is a control block diagram for maintaining the plane of rotation of the leaf cutter 14 in the horizontal direction.
Shown in The horizontal cylinder 42 supported on the chain case 34 via the fixing stay 41 operates in accordance with the inclination detection value from the horizontal sensor 40 disposed on the chain case 34, and one leaf cutting is performed. The plane of rotation of the cutter 14 is oriented in the horizontal direction. Since the other cutter 14 is connected to the horizontal cylinder 42 through the rod 44, the plane of rotation of the cutter 14 can be directed horizontally at the same time. The cutter 14 is connected to a sprocket 46 in the chain case 34 via a universal joint 45. Thus, the plane of rotation of the leaf cutter 14 can be directed horizontally regardless of the inclination of the body of the harvester, and the carrot foliage can be cut straight in the horizontal direction. As shown in FIG. 10 (a side view of a main part), FIG. 11 (a side view of a straight root cutting cutter), and FIG. A configuration may be employed in which the direct root is detected by the direct root detection sensor 48 composed of photo interrupters arranged in tandem, so that the direct root is reliably cut. A straight root detecting sensor 48 and a straight root cutting cutter 49, each of which is formed by a photo interrupter, have respective supporting arms 51 supported by supporting arms (not shown) of the nipping and conveying belt 9,
It is supported at 52. The head alignment guide 10 ′ is rotatable about the bent portion as a center of rotation, and the vicinity of the rear end thereof is also supported by a link 53 supported by the chain case 34. Then, it is moved up and down by the lifting hydraulic cylinder 55. The lifting hydraulic cylinder 55 has a front portion supported by a support arm of the nipping and conveying belt 9. As shown in FIG. 11, the straight cutting cutter 49 rotates a cylindrical drum 56 provided with a large number of slits 56a, and has a shelf-like cover 57 provided thereon. As a result, the straight root enters the slit 56a of the drum 56 and is cut. The vertical movement of the head alignment guide 10 ′ is performed by the lifting cylinder 55. As shown in FIG. 10, the direct root detecting sensor 48 receives light from the light emitting elements of the photointerrupters arranged in tandem by the light receiving element, but the light is not received due to the difference in the cutoff time of the carrot passing between the photointerrupters. The direct root can be detected from the number of the photo interrupter in the portion where the interruption time is relatively short, and accordingly, the operation amount of the lifting hydraulic cylinder 55 is adjusted, and the head alignment guide 10 'is moved up and down. , Direct roots can be reliably cut. Although the position of the root is different depending on the size of the carrot, in the conventional harvester, the root cutting cutter 49 is fixed or provided only at one place. Because of this, the roots were cut without confirming the position of the roots, and many were irregular. Then, after the carrots were harvested, the roots were cut again and the whole was uniformly prepared, so that much labor and time was spent. However, this can be automatically performed by the apparatus of the present embodiment. FIGS. 13 (a side view of an essential part) and FIG. 14 (a side view of a straight-cut cutter portion, as viewed from the direction of arrows AA in FIG. 13). As shown in Fig.), After the heads of the carrots are aligned with the head alignment belt 10, at the position before the cutting of the foliage by the leaf cutter 14, large, medium and small carrot lengths are determined. When the value is large, the arrangement position of the straight root cutting cutter may be lowered, and when it is small, the arrangement position of the straight root cutting cutter may be increased. A plurality of photo-interrupters arranged in a row supported on the link component 59 for transmitting the driving force of the nipping and conveying belt 9 detect the position of the direct root in the same manner as described with reference to FIG. Based on the warp detection result, the electric cylinder 60 moves up and down the cylindrical drum type straight cutting cutter 49 itself supported by the link component 59 to control an appropriate cutting position. The root cutter 49 shown in FIG. 14 has a large number of slits 5 like the one shown in FIG.
The cylindrical drum 56 includes a cylindrical drum 56 having a cylindrical drum 6a and a slit-shaped cover 57 that covers the upper half of the drum 56.
By the rotation of 6, the straight root enters the slit 56a of the drum 56 and is cut. FIG. 15 shows an example in which three pairs of a light emitting portion and a light receiving portion of a photo interrupter are provided in the vertical direction. Table 1 shows the relationship between the ON / OFF of each light receiving unit, the determination of the size of the direct root, and the arrangement position of the direct root cutting cutter 49 when the light receiving units are P ₁ , P ₂ , and P ₃ from the top. [Table 1] Also in this case, only the straight root can be cut accurately by the straight root cutting cutter 49, and moreover, the straight root cutting cutter 49 only needs to be provided at one place and does not take up space. Next, in a carrot harvester of the type shown in FIG. 16 (a plan view of the harvester) in which the tip of the digging device 3 and the nipping and conveying belt 9 moves laterally, a button provided on the operation panel 61 of the driver's seat. By operating a switch (not shown), the tip of the excavator 3 may be moved laterally, and the body of the harvester may be moved forward at the same position. FIG. 17 shows the structure of a portion of the nipping / conveying belt 9, but the link 6 supported by the body of the machine (not shown).
2 is a pair of pulleys 64a, 6
4b is connected to an intermediate portion of a member 65 connecting the four cylinders 4b, and the side surface of the link 62 is movable by an electric cylinder 67 (FIG. 17 shows a state in which the electric cylinder is connected to only one link 62). Although shown, the links 62, 62 are connected by a connecting member (not shown), and the two links 62, 62 slide together.) FIG. 18 is a conceptual diagram of a working method for moving the holding / conveying belt 9 laterally. The carrot planting strip in the central part (1) of the field shown in FIG. 18 is harvested by hand digging, so that the crawler 1 of the harvester can pass through the central part (1). Next, a carrot harvesting operation is performed in any one of the regions (2) and (3). At this time, for example, at the time of harvesting the carrot in the area (2), pressing the button switch once (the button switch slides one or a plurality of rows when pressed once) causes the area (2) to be pressed
The tip of one or a plurality of α-conveying belts 9 is laterally moved. At this time, the body of the carrot harvester is on the strip in the area (1), but the tip of the nipping and conveying belt 9 is on the area (2). Then, by pressing the button switch, the tip of the holding and conveying belt 9 is adjusted to one or a plurality of carrots to be harvested. The harvester then proceeds straight to harvest one or a plurality of rows, then backs up, and then moves the tip of the conveying belt 9 forward with the β-row, which is the next planting strip, using a button switch. ,
Harvest the carrots in the strip. Further, at the time of harvesting carrots in the area (3), the tip of the nipping and conveying belt 9 is moved laterally by sliding the slide switch to the left, and harvesting is performed in the same manner as in the area (2). Thus, the amount of lateral movement of the carrot harvester main body can be reduced, and the carrots of a plurality of planting strips can be efficiently harvested. Next, FIGS. 19 to 21 show a configuration in which the holding force of the holding and conveying belt 9 is changed according to the size of the foliage of the carrot to eliminate the undigged carrot. In a conventional configuration having no mechanism for changing the holding force of the holding / conveying belt 9, if the foliage of the carrot is too thick, it may not be possible to hold the carrot with the holding / conveying belt 9, and the remaining carrots must be dug by hand. A great deal of labor is required. On the contrary, carrots are thin and have little foliage, so that when they are pulled out with a strong pinching force, the foliage may be torn. Therefore, as shown in a plan view of the distal end portion of the holding and conveying belt 9 in FIG. 19, the position of the tension pulley 69 for changing the holding force of the holding and conveying belt 9 in accordance with the opening amount of the pair of strain gauges 68 is electrically controlled. It is controlled by the cylinder 70. FIG. 20 shows a side view of the tip of the nipping and conveying belt 9, and FIG. 21 shows the positional relationship between a pair of strain gauges 68 and carrot foliage. In this way, the pressing force between the two nipping and conveying belts 9, particularly the pressing force between the pair of belts 9 at the tip end, is controlled in accordance with the thickness of the carrot. In the case of thin carrots, the holding force of the holding and conveying belt 9 can be weakened, and the foliage can be dug without being torn. Next, a configuration in which the inclination angle of the holding and conveying belt 9 is changed according to the length of the carrot while the carrot is being conveyed by the pulling-out device (the holding and conveying belt 9) is shown in FIG.
This will be described with reference to (a main part side view for detecting the carrot length and setting the inclination angle of the nipping and conveying belt 9) and FIG. 23 (a main part perspective view for setting the inclination angle of the nipping and conveying belt 9). In a conventional carrot harvester, a long carrot is easily broken. Therefore, the working speed is reduced and the carrot pulling speed of the nipping and conveying belt 9 is reduced to reduce the pulling force, thereby preventing the carrot from being broken. But,
In this case, the work efficiency is reduced. Further, if the pull-out inclination angle of the nipping and conveying belt 9 is set to be small, a long carrot will not be broken, but the nipping and conveying belt 9 will be long, and this method cannot be applied to a short carrot. Therefore, as shown in FIG. 22, a support frame 72 of the nipping and conveying belt 9 is provided with a carrot length detecting sensor 73 composed of a photocoupler comprising a plurality of light emitting units and light receiving units in the vertical direction. The carrot length detection sensor 73 detects one of the carrot lengths, long, medium, and short.
Based on the detection result of the carrot length detection sensor 73, the tilt angle of the nipping and conveying belt 9 is set for a long carrot by a hydraulic cylinder 76 for controlling the pull-out angle provided between the auxiliary frame 74 of the support frame 72 and the vehicle body 2. In addition, the transport speed of the nipping / conveying belt 9 is increased. Conversely, in the case of a short carrot, the inclination angle of the nipping / conveying belt 9 is reduced, and the conveying speed of the nipping / conveying belt 9 is reduced. In addition, a hydraulic cylinder 77 for vertically moving the holding and conveying belt 9 is provided between the support frame 72 of the holding and conveying belt 9 and the vehicle body 2. FIG. 23 shows a transport speed control mechanism of a nipping transport belt (not shown) and a hydraulic cylinder 76 for controlling the pull-out angle. The driving force is transmitted from the engine 80 to the large pulley 78 via the small pulley 81. In the case of a long carrot, the piston of the hydraulic cylinder 76 for pulling out angle control is extended to raise the inclination angle of the nipping and conveying belt 9,
At this time, the large pulley 78 also rises, so that the large pulley 78 moves to the position indicated by the broken line in FIG. 24A, and the distance between the large pulley 78 and the small pulley 81 increases, and the pulleys 78, 81 in FIG.
As shown in the cross-sectional view, the belt 82 goes deep into the groove of the large pulley 78, and the rotation speed of the large pulley 78 increases. In the case of a short carrot, the large pulley 78 moves to the position shown by the solid line in FIG. 24 (a), the distance between the large pulley 78 and the small pulley 81 decreases, and the rotation speed of the large pulley 78 decreases. The carrot length detection sensor 73 (P ₁ ,
Table 2 shows the relationship between the detection results of P ₂ and P ₃ ), the determination of the length of the carrot, the operation of the hydraulic cylinder 76 for controlling the extraction angle, and the transport speed of the nipping transport belt 9. [Table 2] [0050] According to the present invention, planting conditions of root vegetables on the ridge
The aircraft responds quickly to the bend of the aircraft and the aircraft does not shake
Since it is only necessary to run straight, there is no need for detailed operation
Work can be done easily, and workability is improved. The above invention
According to the root crop harvester, the direction of the body itself is corrected
Foliage can be securely clamped without the need for
Between the root and foliage of the root vegetable
Reduces digging mistakes and improves harvesting performance
You.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a side view of a carrot harvester according to an embodiment of the present invention. FIG. 2 is a plan view of the carrot harvester of FIG. FIG. 3 is a side view of a main part of the carrot harvester according to one embodiment of the present invention. FIG. 4 is a side view of a main part of the carrot harvester according to one embodiment of the present invention. FIG. 5 is a view of the carrot harvester of FIG. FIG. 6 is an enlarged view of a leaf cutter portion of a carrot harvester according to one embodiment of the present invention. 7 is a view of a cut surface of a joint portion between the carrot harvester's leaf cutting cutter and a chain case in FIG. 6 as viewed from an arrow direction of the harvester. FIG. 8 is a view as seen from the rear of the carrot harvester in FIG. 6; FIG. 9 is a control block diagram for maintaining the plane of rotation of the leaf cutting cutter of the carrot harvester of FIG. 6 in a horizontal direction. FIG. 10 is a side view of a main part of the carrot harvester according to one embodiment of the present invention. FIG. 11 is a side view of a straight cutting cutter part of the carrot harvester in FIG. 10; FIG. 12 is an explanatory view of a direct root detection mechanism of the carrot harvester in FIG. 10; FIG. 13 is a side view of a main part of the carrot harvester according to one embodiment of the present invention. FIG. 14 is a side view (a view taken along the line AA in FIG. 13) of the straight root cutting portion of the carrot harvester in FIG. 13; 15 is a layout view of a direct root detection sensor of the carrot harvester of FIG. FIG. 16 is a plan view of a carrot harvester according to one embodiment of the present invention. FIG. 17 is a configuration diagram of a nipping and conveying belt portion of the carrot harvester in FIG. 16; 18 is a conceptual diagram of the work method shown in FIG. It is. FIG. 19 is a plan view of a tip end portion of the nipping and conveying belt of the carrot harvester according to one embodiment of the present invention. 20 is a side view of a tip end portion of the nipping and conveying belt of the carrot harvester in FIG. 19; 21 is a view showing a positional relationship between a pair of strain gauges and carrot foliage of the carrot harvester in FIG. 19; FIG. 22 is a side view of a main part of an apparatus for detecting a carrot length and setting an inclination angle of a nipping and conveying belt of the carrot harvester according to one embodiment of the present invention. 23 is a perspective view of a main part of the device for setting the inclination angle of the nipping and conveying belt of the carrot harvester in FIG. 22. 24 is an operation view and a cross-sectional view of a pulley of the device for setting the inclination angle of the holding and conveying belt of the carrot harvester in FIG. 22. [Description of Signs] 1 Crawler 2 Car body 3 Raising device 5 Front transport unit 6 Rear transport unit 9 Nipping transport belt 10 Head alignment belt 10 'Head alignment guide 11 Leaf cutting belt 12 Leaf discharging belt 14 Leaf cutting cutter 15 Storage belt 16 Horizontal Frame 18 Guide rail 19 Horizontal control hydraulic cylinder 20 Vertical control hydraulic cylinder 21 Direction control sensor 22 Work frame 23, 24 Horizontal rotation axis 26, 29 Vertical rotation axis 27, 30 Support arm 32 Arm 33 Universal joint 34 Chain case 36 Stay 37 Cylinder 40 Horizontal sensor 41 Fixing stay 42 Horizontal cylinder 45 Universal joint 46 Sprocket 48 Straight root detection sensor 49 Straight root cutting cutter 51, 52 Support arm 53 Link 55 Lifting hydraulic cylinder 56 Cylindrical drum 57 Shelf-shaped cover 59 Link component 60 Electric cylinder 61 Operation panel 62 Link 64 Nipping / conveying belt driving pulley 65 Member connecting the pulleys 67 Electric cylinder 68 A pair of strain gauges 69 Tension pulley 70 Electric cylinder 72 Support frame 73 Carrot length detection Sensor 74 Auxiliary frame 76 Hydraulic cylinder 77 for pull-out angle control Hydraulic cylinder 78 Large pulley 80 Engine 81 Small pulley

──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Seiichi Arima 1st Hachikura, Toze-cho, Iyo-gun, Ehime Prefecture Iseki Agricultural Machinery Co., Ltd. (56) References JP-A-8-252016 (JP, A) JP-A-6-3024 (JP, U) JP-A-63-80926 (JP, U) JP-A-7-43024 (JP, A) U) (58) Field surveyed (Int. Cl. ⁷ , DB name) A01D 13/00-33/14

Claims (1)

(57) [Claims] 1. At least the foliage is pinched and pulled outComeTransport
DoEquipped with a pair of left and right pinching and conveying belts 9Nipping transport device
In the root cropper having aNipping transport device
To the vehicle body 2 along the guide rail 18 for horizontal movement.
Provided on a horizontal frame 16 that can be moved left and right
Along withPosition detecting means for detecting the position of foliage21
And the position detecting means21In relation to the detection results ofThe frame
Hydraulic cylinder for horizontal control for moving the arm 16 in the left-right direction
Da-19And a root crop harvesting machine.