JP2006296333A - Vegetable harvester - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a self-propelled type vegetable harvester designed to perform driving operation by one operator, readily lower a container which is filled to a field and easily replenish an empty container because supply of an empty box and the discharge of the filled container cannot continuously be carried out in conventional vegetable harvesters. <P>SOLUTION: The self-propelled type vegetable harvester 1 is equipped with a vegetable transporting part 4, a container transporting part 7 arranged in the upper part of the rear of crawler travelling apparatuses 2 and an operation part 90 to harvest vegetables while advancing the machine body. A container transporting platform 71 is arranged in the right and left directions under the rear of a transporting apparatus 40 of the vegetable transporting part and the container transporting platform 71 is divided into the right and left. Containers 80 can be placed on a right and a left transporting platforms 71R and 71L, respectively. A dropping chute 85 is provided so as to house harvests dropped from the transporting apparatus in the container placed on the transporting platform on one side of the right and left. The transporting platform on the other side of the right and left is composed so as to tilt downward from the nearly horizontal state. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a self-propelled vegetable harvesting machine that harvests vegetables while advancing the machine, and in particular, to a container transportation table disposed behind a transportation device, and a harvested product in a container placed on the container transportation platform. It is related with the technique for making it easy to drop to an agricultural field and to fill up an empty container easily when the container is full.

2. Description of the Related Art Conventionally, a technique in which a preparation unit is disposed at the rear part of a vegetable harvesting machine conveying apparatus and a stand on which a container is placed is provided at the rear part or a side part is known.
Such a vegetable harvesting machine pulls out the vegetables vegetated in the field from the straw, cuts the unnecessary leaves and roots in the middle of conveyance, prepares the necessary leaves and roots at the rear of the conveying device, and behind it Or it was supposed to be accommodated in a container placed on the side. (For example, see Patent Documents 1 and 2)
Japanese Patent Laid-Open No. 10-248354 JP-A-8-289655

The vegetable harvesting machine in the above-mentioned Patent Document 1 cuts the rhizome part while pulling out the vegetables in the field and transporting them diagonally upward and rearward, transports them to the preparation part at the rear part of the transport device, and the operator is located at the rear part of the preparation part. An empty box is arranged on both the left and right sides of the worker, and a harvesting box containing the harvested product is loaded at the rear. However, the worker packed the harvested product on the side, and once it was full, the harvesting operation was stopped once and loaded in the rear harvesting box loading space. Therefore, supply of empty boxes to the boxing space and transfer of boxes after packing to the loading space are performed while manually lifting the boxes, and labor is required. In addition, work is required separately from the driver of the aircraft.
Moreover, the vegetable harvesting machine in Patent Document 2 is configured to dig up and convey the vegetables backward, and to store them in a container on the loading platform after sorting at the rear of the conveying device, and the loading platform can be turned up and down by a hydraulic cylinder. It is composed. Thus, when the harvested items after sorting are filled in the container, the load is lowered and the labor is reduced by dropping the container onto the field scene. However, if the loading platform gets caught or distorted and slides down when it is lowered, it is necessary to stop and correct it. There was no space to place it and it took time to replenish.
Therefore, in view of the above problems, the present invention is a vegetable harvester that can be operated by a single driver, can be easily lowered when the container is full, and can be easily refilled with empty containers. Is to provide.

  The problem to be solved by the present invention is as described above. Next, means for solving the problem will be described.

That is, a crawler traveling device disposed in the lower part of the machine body, a scraping part disposed in the foremost part of the body, a vegetable transporting part connected to the rear of the scraping part, and a rear upper part of the crawler traveling apparatus. A self-propelled vegetable harvesting machine that includes a container transport unit disposed and an operation unit, and that harvests vegetables while driving the crawler traveling device to advance the machine body;
A container transport base is arranged in the left-right direction below the rear part of the transporting device of the vegetable transport section, the container transport base is divided into left and right, and containers can be placed on the left and right transport bases, respectively. A fall chute is provided in the container placed on the container so as to accommodate the harvested product falling from the transport device, and the left and right transport tables can be tilted downward from a substantially horizontal state.

According to a second aspect of the present invention, the left and right conveyance tables are arranged on the operation unit side.
In addition, as described in claim 3, the container transport table is inclined so that the left and right sides are lowered, the left and right transport tables are disposed on the upper side of the tilt, and the left and right transport tables are tilted downward. A locking body is provided so as to protrude upward on the side end.
According to a fourth aspect of the present invention, the locking body is constituted by a roller and is configured to be housed inside the conveyance table, and the roller is urged upward by an elastic member.

As effects of the present invention, the following effects can be obtained.
In other words, since it is configured as in claim 1, the harvested product falling from the transfer device is stored in the container placed on the left and right transfer table, and when the container is full, the container is moved onto the left and right transfer table. Then, by tilting the transport table downward, the container can be slid downward by its own weight, the container can be easily lowered onto the field, and the operation can be simplified and labor can be reduced. .

Since it comprised as Claim 2, it becomes possible for an operator to move and drop a container on the conveyance stand of the right and left other side, carrying out driving | running | working driving | operation operation, and can improve operativity.
According to the third aspect of the present invention, the container can be moved and stopped until it comes into contact with the locking body by simply placing the container on the left and right side of the container carrier, and positioning can be easily performed. When the harvest is full, the container can be moved over the locking body and moved onto the left and right transport platforms to lower the container onto the field, and the container can be handled easily.

  According to the fourth aspect of the present invention, when the container filled with the harvested product is moved on the left and right conveyance platforms, the roller can resist the elastic member by moving it sideways with a certain level of strength. Then, the container can be moved onto the other carrier with a light force without lifting the container. After the movement, the locking body returns to the original position by the elastic member, and the operation of returning is not necessary.

First, the whole structure of the vegetable harvester 1 is demonstrated using FIG. 1 thru | or FIG. 1 is a front perspective view of the vegetable harvesting machine, FIG. 2 is a plan view, FIG. 3 is a rear view, and FIG. 4 is a right side view.
In the following description, the advancing direction of the aircraft is the front-rear direction, the direction perpendicular to the aircraft advancing direction is the left-right direction, and the direction orthogonal to the advancing direction is the up-down direction. To do.

The vegetable harvesting machine 1 according to the present embodiment is configured as a self-propelled type equipped with an engine. The crawler traveling device 2 is driven to advance the machine body along the fence while being pulled out from the basket and placed on the basket. The picked vegetables are picked up and stored in the container 80.
In the vegetable harvesting machine 1, the scraping unit 3 is disposed in the foremost part of the machine body, and the front part of the vegetable transport unit 4 is disposed below the scraping unit 3. And this vegetable conveyance part 4 is formed in the height before and behind, and conveys a crop diagonally back. A sorting unit 6 is disposed below the last part. A container transport unit 7 is disposed below the sorting unit 6.
In this configuration, an example in which onions are harvested as vegetables will be described, but vegetables such as potatoes and carrots that have been dug up can also be harvested. The onion (harvested product) is scraped by the scraping unit 3, transferred to the vegetable transport unit 4, and transported backward by the vegetable transport unit 4. The onion transported to the end of the vegetable transport unit 4 is transferred to the sorting unit 6, and after being sorted by the sorting unit 6, is stored in a container 80 set on the container transport base 71 of the container transport unit 7. .

  As shown in FIGS. 9 and 10, the crawler traveling device 2 includes a drive sprocket 101, a driven sprocket 102, wheels 103, 103, 103, a crawler belt 104, a track frame 105, a lifting mechanism 106, and the like. The lower part of the traveling machines 2 and 2 can be moved up and down so that the main body of the vegetable harvester 1 can be kept horizontal. That is, the crawler type traveling device 2 on the left and right sides will be described. The front ends of the links 107 and 107 constituting the parallel links are pivotally supported on the front and rear of the track frame 105 that supports the driven sprocket 102 and the wheels 103, 103, and 103. The other ends of the links 107 and 107 are fixed to fulcrum shafts 108 and 108, and the fulcrum shafts 108 and 108 are pivotally supported on the body frame 5. One end (lower end) of the arm 109 is fixed to one (front side) fulcrum shaft 108, and a long hole 109a is opened on the other side of the arm 109, and a piston rod tip of the hydraulic cylinder 110 is inserted into the long hole 109a. The hydraulic cylinder 110 is pivotally supported and is fixed to the body frame 5 in a substantially horizontal direction in the front-rear direction.

  The hydraulic cylinder 110 is configured to be able to extend and contract the hydraulic cylinder 110 by switching the oil supply direction of the pressure oil by switching the control valve 111 formed of an electromagnetic valve. The control valve 111 is connected to a controller 112, and the controller 112 is connected to an angle setter 113 and an angle sensor 114 disposed at an arbitrary position of the vegetable harvester 1 (the machine frame 5 in this embodiment). The angle setting unit 113 is disposed in the operation unit 90.

  In such a configuration, by setting the angle of the machine body to a horizontal or a desired angle by the angle setting unit 113, there is unevenness when the crawler type traveling device 2 or 2 travels between the furrows during the work. Even if it is tilted, the angle sensor 114 detects the tilt in the left-right direction and lifts the hydraulic cylinder 110 so as to lift the track frame 105 on the lower left and right sides of the aircraft or to lower the track frame 105 on the higher left and right sides. It is configured to be driven to extend or contract to maintain the aircraft at a set angle. That is, when the crawler reaches the convex portion of the ground surface, the airframe is lifted, so that the hydraulic cylinder 110 is extended and the track frame 105 is lifted to lower the airframe to become horizontal as shown in FIG. On the contrary, when reaching the concave portion, as shown in FIG. 10, the hydraulic cylinder 110 is reduced, the track frame 105 is lowered, and the airframe is raised to be horizontal. In this way, the raking part 3 and the vegetable conveying part 4 are inclined according to the inclination of the upper surface of the rice cake so that the onion can be surely picked up.

  Further, as shown in FIG. 4, a rotation support portion 9 is provided on the upper part of the left and right support columns 8 erected in the front and rear halfway portion of the machine body frame 5. The rear end portions of the left and right drive cases 49 of the device 40 are pivotally supported, and the conveying device 40 is extended obliquely downward. A hydraulic cylinder 41 is pivotally connected between the drive case 49 of the conveying device 40 and the body frame 5, and the hydraulic cylinder 41 is expanded and contracted to move the conveying device 40 up and down with the rotation support portion 9 as a fulcrum. It can be rotated in the direction so that the height can be adjusted.

  And the height setting apparatus 11 is provided so that the height of the front-end | tip of the conveying apparatus 40 can be set corresponding to the height of the cage | basket | work which performs work. As shown in FIG. 4, the height setting device 11 is provided at the front portion of the machine body frame 5 so as to be a hit when the conveying device 40 is lowered. That is, the height setting device 11 is arranged on both sides or one side of the front part of the machine body frame 5 so that the lower part of the front part of the drive case 49 of the transport device 40 is in contact. And then the height of the height setting device 11 is adjusted so as to match the height of the upper surface of the heel, the conveying device 40 is lowered, and the lower portion of the drive case 49 contacts the height adjusting device 11. Let A contact plate 17 that contacts the upper end of the height adjusting device 11 is provided on the lower surface of the drive case 49. In this way, the front part of the conveying device 40 and the scraping part 3 are adapted to the height of the ridge, so that the front part of the conveying device 40 does not thrust into the soil during the work.

  A specific configuration of the height adjusting device 11 is constituted by a boss body 12 and a screw body 13 screwed to the boss body 12, and a lower portion of the boss body 12 is fixed to a support shaft 14. It is pivotally supported by the body frame 5 and can be rotated back and forth. An operating arm 15 is projected from the support shaft 14, and an operating rod 16 is connected to the operating arm 15, and the operating rod 16 is connected to an operating lever (not shown) provided on the operating unit 90.

  With this configuration, the height of the upper end of the screw body 13 can be adjusted to a desired height by rotating the screw body 13. Further, by tilting the height adjusting device 11 forward or backward, the vegetable transport section 4 can be lowered and stored stably to the lowest lowered position, and slightly raised from the lowest lowered position when traveling on the road or the like. Thus, the lower end of the transport device 40 can be prevented from coming into contact with an obstacle, and the scraping portion 3 can be prevented from obstructing the front view.

  During the work, the conveying device 40 is raised to the highest position, and then the height adjusting device 11 is raised by the operation of the operation lever, and the screw body 13 is rotated to match the height of the ridge. And the height of the front-end | tip of the conveying apparatus 40 below the raking part 3 can be made to correspond substantially to the heel height by moving the conveying apparatus 40 down. During this work, you can pick up the onion without going into the ground. However, the height adjusting device 11 can also be constituted by a cylinder instead of the boss body 12 and the screw body 13, and by operating a switch or the like, the cylinder can be expanded or contracted by hydraulic pressure or a motor or the like to set the hit height to the operating portion. It can also be configured to be adjustable at 90. The height adjusting device 11 can also be provided on the transport device 40 side.

  Further, at the rear portion of the drive case 49 of the transport device 40, there is provided a rotation support portion 10 for the support arms 31 and 31 that support the scraping device 30, and at the rotation support portion 10, the scraping device. The scraping device 30 pivotally supported by the rear end portion of the support arm 31 is supported by the hydraulic cylinder 32 pivoted to the side portion of the transport device 40, with the rotation support portion 10 as a fulcrum. By rotating 31, it is moved in the vertical direction. With the above configuration, the ground height of the scraping device 30 can be individually set by operating the hydraulic cylinder 32.

  Further, instead of using the hydraulic cylinder 32, an elastic member may be used to support the height adjustment and elastic biasing. That is, as shown in FIGS. 8 and 11, support rods 55 and 55 are provided on the side portions of the front and rear middle portions of the left and right drive cases 49. Further, a support rod 56 is provided horizontally on the left and right support arms 31. Stays 55a and 56a are projected from the support rods 55 and 56, and pivot pins 57 and 58 are pivotally supported on the stays 55a and 56a, respectively, and the pivot pins 57 and 58 are perpendicular to the axis. The screw rod 59 is passed through and arranged in a substantially vertical direction. The lower end of the screw rod 59 is fixed to the pivot pin 57 with a nut 60, and springs 61 and 62 are externally fitted to the screw rods 59 on both sides of the pivot pin 58 as elastic members. Washers 63, 63, 64, and 64 are disposed, respectively. A nut 65 is screwed to the lower part of the lower washer 63, and a nut 66 is screwed to the upper side of the upper washer 64. 67 is a lock nut.

  With this configuration, the pivot pin 58 fixed to the support arm 31 is elastically biased in the vertical direction by the springs 61 and 62, and the scraping portion 3 abuts against the convex portion on the collar or other Even if it comes into contact with an obstacle or the like, the pivot pin 58 slides up and down, the shock is relieved by the urging force of the springs 61 and 62, and damage or the like can be avoided.

  Further, by turning the lower nut 65 or the upper nut 66, it is possible to adjust the height of the scraping portion 3 with respect to the conveying device 40, and it is possible to adjust the biasing force by turning one or both of them. It is possible to change. That is, by rotating the lower nut 65 so as to slide upward (clockwise), the pivot pin 58 also slides upward, and the angle between the drive case 49 and the support arm 31 is increased. The scraping part 3 can be raised by enlarging and widening the space between the two. When the nut 66 is rotated so as to slide downward (counterclockwise), the pivot pin 58 also slides downward, reducing the angle between the drive case 49 and the support arm 31 and The scraping portion 3 can be lowered by narrowing the interval.

In addition, the transport device 40 is configured in an interdigital shape by horizontally arranging a plurality of rod-like bodies on the left and right endless chains and winding them around the front and rear drive sprockets and driven sprockets. Thus, the harvested product can be conveyed by being driven to rotate. That is, as shown in FIG. 5, an endless vegetable transport surface 46 formed by alternately arranging a plurality of first transport bars 44, 44... And second transport bars 45, 45. Is done.
Both left and right ends of the transport rods 44 and 45 are attached to transport chains 43 and 43 constituted by endless bodies built in a drive case 49 (see FIG. 5), and the transport chains 43 and 43 are driven (not shown). By driving the apparatus, the transport rods 44 and 45 are moved from below to above.

  The first conveying rod 44 includes a shaft member 44a and a hollow collar 44b, and the shaft member 44a is inserted into a hollow portion of the collar 44b. The shaft member 44a is attached to the transport chains 43 and 43, and the collar 44b is rotatable with respect to the shaft member 44a. As described above, since the collar 44b is rotatable with respect to the shaft member 44a, even if the picked onion falls on the first transport rod 44, the shock due to the fall is relieved by the rotation of the collar 44b, Can be transported without damaging the onion.

  On the other hand, the second transport rod 45 has a shape with projections and depressions in the longitudinal direction in plan view (front view). Portions other than 45a and 45a are formed as recesses 45b that are recessed substantially perpendicularly to the onion transport surface. That is, the second transport rod 45 is formed by recessing a portion other than the connection portion with the transport chains 43 and 43 with respect to the transport surface. And in the 2nd conveyance stick | rod 45, the recessed part 45b occupies most parts of a longitudinal direction.

Since the concave portion 45b of the second conveying rod 45 and the vertical positional relationship between the first conveying rods 44 and 44 before and after the concave portion 45b are lower than the first conveying rods 44 and 44, the concave portion 45b 45b and the first conveying rods 44 and 44 form a triangular mounting space 47 in a side view (side view from the longitudinal direction of the first conveying rod 44).
Further, the width and depth of the mounting space 47 in the transport direction are determined by the arrangement interval of the first and second transport rods 44 and 45 and the depression of the recess 45b, and thus are harvested. The width and depth of the mounting space 47 in the transport direction can be changed by appropriately changing the arrangement interval and the depression according to the size of the onion.

In addition, since the onion naturally fits in the mounting space 47, the onion can be transported in a stable state. Further, a plurality of onions can be placed and transported in the left-right direction for one placement space 47, and a large amount of onions can be transported.
Moreover, since the movement of the onion in the left-right direction is restricted by the convex portions 45a and 45a, the onion can be prevented from coming into contact with the transport chains 43 and 43 and being damaged. Moreover, since a clearance gap is formed between each conveyance stick | rod, the earth and sand adhering to an onion can be efficiently screened off to the ground through this clearance gap.

  Moreover, the inclination of the vegetable conveyance surface 46 is located above the endless vegetable conveyance surface 46 in which the first conveyance rods 44, 44... And the second conveyance rods 45, 45. Two bar-shaped conveyance guides 48 are arranged so as to extend along the line. The conveyance guides 48 and 48 are configured such that their lower end portions are fixed to, for example, drive cases 49 and 49 and their upper end portions are arranged at the upper end portion of the vegetable conveyance surface 46. And these conveyance guides 48 and 48 are so close to the left-right center of the vegetable conveyance surface 46 that it goes to the upper end part from this lower end part so that substantially "eight" shape may be formed in planar view, respectively. It is bent.

  Due to the presence of the conveyance guides 48 and 48, the onion widely placed in the left-right direction in the lower part of the conveyance device 40 is guided by the conveyance guides 48 and 48 as it is conveyed upward, and the conveyance device 40. In the upper part of, it is collected on the left and right center side.

In addition, according to the above, it is possible to prevent the onion from spreading to the left and right and coming into contact with the transport chains 43 and 43 and damaging the onion, and to focus the onion flow within the range of the left and right width of the transport device 40. And can be reliably collected in the container 80.
In addition, the conveyance guides 48 and 48 are configured to be removable, and according to the type of vegetable, by appropriately replacing with another conveyance guide having a different shape, the optimum focusing width according to the type of vegetable to be harvested And can be reliably collected in the container 80 even if the type and size of the vegetables to be harvested change.

  Moreover, the conveyance guides 48 and 48 are configured to be substantially parallel to the vegetable conveyance surface 46, and have a simple structure. In the vicinity of the upper end portion of the transport device 40, the transport guides 48 and 48 are bent to be substantially horizontal with the ground surface, so that the vertical clearance between the vegetable transport surface 46 and the transport guides 48 and 48 is reduced. Thus, it is possible to reliably guide the container 80 in the direction in which the container 80 is arranged without passing the onion through the gap.

Further, in the middle of the conveyance of the conveyance device 40, a spraying device 120 is disposed that blows air to promote drying of the harvested material and removes adhered soil and the like. As shown in FIG. 11, the spray device 120 has an air pipe 121 installed in the middle of the front and rear of the left and right drive cases 49, and the horizontal portion of the air pipe 121 is disposed in the left-right direction above the vegetable transport surface 46. Is done. A discharge port is opened at an appropriate interval on the lower surface of the horizontal portion of the air pipe 121 so that air is discharged to the vegetable transfer surface 46 side. In this embodiment, the support rod 55 is constituted by a pipe and is also used as an air pipe.
One end of the air pipe 121 is closed, and the other end is connected to a discharge port of a pneumatic feeding means such as a compressor or a blower (not shown) via a hose or the like. The suction port of the pneumatic feeding means is arranged in the vicinity of the engine, or the hose is arranged so as to pass through the vicinity of the engine so as to warm the air to be fed. By arranging the suction port of the pneumatic feeding means in the vicinity of the engine, hot air can be sucked in. By blowing this hot air on the vegetable transport surface 46, the vegetable that is transported on the soil and contains moisture. Is dried, prevents decay and improves shelf life, and also removes attached soil and the like, reducing the labor of sorting and cleaning. In particular, by arranging the suction port of the pneumatic feeding means at the discharge port of the cooling fan of the engine, the cooling efficiency of the engine can be enhanced and the drying of vegetables can be promoted.

  Then, the harvested product is conveyed rearward by the conveying device 40 and is put into the container 80 from the end through a drop chute 85 described later. However, during transportation, the leaves or roots of the harvest may get entangled with the transportation rods 45 and 46 and do not leave and fall to the front and lower and cannot be stored in the container 80. In particular, since small vegetables are light, their leaf portions are easily entangled, are not easily dropped, and are easy to wrap around from the rear end of the conveying device 40 to the front and lower sides.

  Accordingly, in the present invention, as shown in FIG. 7, the drive shaft 50 is horizontally mounted between the support columns 8, 8 on the rotation support portion 9, and the drive sprockets 51, 51 are provided on the left and right sides of the drive shaft 50. It is fixed. On the other hand, a driven shaft (not shown) is horizontally mounted on the front end of the drive case 49, and the driven sprockets are fixed on both the left and right sides of the driven shaft, and the transfer chain 43 · is placed between the driven sprocket and the drive sprockets 51 · 51. 43 is wound.

  The tension roller 52 is disposed between the front driven sprocket and the rear drive sprocket 51 to tension the transport chain 43. The arrangement position of the tension roller 52 is the non-conveying surface side on the lower surface side opposite to the vegetable conveying surface 46, and is disposed in the vicinity of the drive sprocket 51. In other words, the tension roller 52 is disposed diagonally forward and downward of the drive sprocket 51, and is tensioned so that the rear lower portion of the transport chain 43 extends horizontally or forward and upward from the rear end. The front upper end of the drop chute 85 is positioned in front of the vertical line H lowered from the rear end of the transport device 40, and the tension roller 52 is disposed between the front end of the drop chute 85 and the vegetable transport surface 46.

  By comprising in this way, the conveyance chain 43 will rotate in the direction which escapes from the fall direction of vegetables in the drive sprocket 51 lower part, and vegetables will fall easily. The angle α between the conveying chain 43 extending forward from the rear end and the line connecting the lower tangent line of the drive sprocket 51 and the driven sprocket can be made larger than before. Since the angle α escapes more than that, the entanglement is less likely to occur. In addition, the triangular space A formed between the transport chain 43 and the drop chute 85 is widened, and a sufficient distance B between the lower portion of the drive sprocket 51 and the drop chute 85 can be secured. The crop is not clogged between the stick and the falling chute 85.

Further, as shown in FIGS. 1 and 6, in the scraping portion 3, the drive shaft 35 is horizontally mounted on the left and right support arms 31 and 31, and the rotating wheels 24 and 25 are fixed to both ends of the drive shaft 35. ing.
A drive case 31a provided in parallel with the right support arm 31 is provided with a power transmission mechanism for the drive shaft 35, and the drive shaft 35 is rotated by receiving power from the power transmission mechanism.
The left and right rotating wheels 24 and 25 are respectively provided with arms 24a and 25a projecting radially in four directions in a radial direction, and a support shaft 26 is mounted between the distal ends of the left and right arms 24a and 25a. ing. An attachment portion 26a (see FIG. 6) having a width in the axial direction protrudes from the support shaft 26, and a scraper 34 is fixed to the attachment portion 26a. The scraper 34 has a rectangular shape with the left-right direction as a longitudinal direction, and is provided with vertical cuts (see FIG. 1) at a plurality of positions in the left-right direction as appropriate.

A rotating wheel 27 that is eccentric with the rotating wheel 25 is mounted on the outer side of the right rotating wheel 25. The rotating wheel 27 is provided with arms 27a, 27a,.
One end of the interlocking arm 28 is pivotally supported on the rotating shaft 27b provided at the tip of the arm 27a of the rotating wheel 27, and the other end of the interlocking arm 28 is fixed to the support shaft 26. .

With the above configuration, each of the scissors 34 attached to each support shaft 26 is always rotated downward while maintaining a state in which a vertical surface is formed.
The scraper 34 is formed of an elastic member such as resin (for example, rubber or vinyl) so that the onion is not damaged when the onion is scraped. In addition, the scraper 34 is formed thick, and it is easy to scrape a plurality of onions simultaneously with a single scraper 34. Moreover, it can also comprise so that it may not be easily bent by the reaction force received from the onion side by providing a separate reinforcement board in this scraping body 34. FIG.

  Further, as shown in FIG. 4, the support arm 31 of the scraping device 30 is provided with a front / rear position adjustment mechanism 33, and the front / rear position adjustment mechanism 33 can adjust the front / rear position of the scraping device 30. It has become.

In addition, as shown in FIG. 2, a container transport table 71 is provided at a rear obliquely lower side of the upper end of the transport device 40. A plurality of rollers 71a and 71a arranged in the front-rear direction are rotatably arranged on the container transport table 71, and a transport surface on which the container 80 is transported in the left-right direction with respect to the machine body traveling direction is formed.
As shown in FIG. 3, the container transport table 71 is disposed in the left-right direction above the crawler travel devices 2 and 2, and as shown in FIG. 7, the front end is pivotally supported by the rear portion of the body frame 5 and moves upward. It can be rotated and stored. An operation unit 90 is disposed on the upper left side of the container transport table 71. A container table 75 on which an empty container 80 is placed is arranged on the right side of the container transport table 71.

Further, as shown in FIG. 3, the ground height of the transfer surface of the container transfer table 71 is provided to be inclined so that the side close to the container table 75 is higher, that is, the hinge unit 76 side is higher and the operation unit 90 is provided. In FIG. 3, it is inclined in the left-right direction so as to be lowered.
The container transport table 71 is divided into left and right parts and is sized so that the containers 80 can be placed one by one. That is, the left and right widths of the left and right transport tables 71L and 71R are the width of the container 80. Is configured to be approximately equal to or slightly longer than the left side, and the transport table 71L on the side close to the left operation unit 90 is used to drop the container 80 filled with harvested products onto the field scene, and the right transport table 71R falls. The container 80 is placed through a chute 85. In addition, it arrange | positions so that the fall chute | shoot 85 may cover above this left conveyance stand 71L, and it is preventing the harvest from entering directly.
Thus, a locking body 74 (described later) is provided on the left end of the right transfer table 71R so as to protrude upward. When an empty container 80 on the container table 75 is moved onto the right transfer table 71R, the lock body 74 is stopped. It is done. The harvested product conveyed from the conveying device 40 in this state is accommodated in the container 80 via the drop chute 85. When the container 80 on the right conveyance table 71R is filled with the harvested product, the container 80 is drawn by hand to the operation unit 90 side and rolled over the right conveyance table 71R to get over the locking body 74 and move to the left conveyance table. The container 80 is moved down onto the field by moving it over 71L and the left carrier 71L pivoting rearward and downward.

That is, as shown in FIG. 7, the left conveyance table 71L is divided into front and rear parts to form a front table 71b and a rear table 71c, and the length obtained by adding the front table 71b and the rear table 71c in the front and rear direction is approximately the front and rear length of the container 80. In the same manner, the longitudinal length of the rear base 71c is configured to be slightly longer than the longitudinal length of the front base 71b, and the front portion of the front base 71b is pivotally supported by the body frame 5 so that it can rotate upward from a substantially horizontal state. It can be stored at times. The rear part of the front base 71b and the front part of the rear base 71c are connected by a fulcrum shaft 72 arranged in the left-right direction, the rear base 71c is supported so as to be able to rotate downward, and a spring 73 is interposed between the front base 71b and the rear base 71c. The rear base 71c is biased so as to rotate upward by the spring 73, and the upper surfaces of the front base 71b and the rear base 71c are normally in a straight and substantially horizontal state. Note that a spring force adjusting member may be configured and arranged with a bolt, a nut, or the like at a locking portion at one end of the spring 73.
In such a configuration, when the container 80 on the right transport table 71R filled with the harvest is moved onto the left transport table 71L, the center of gravity of the container 80 storing the harvest is positioned behind the fulcrum shaft 72. Therefore, the rear portion of the rear base 71c is rotated downward by the weight of the container 80 and the harvested product, and the container 80 can also be tilted rearward to slide on the rear base 71c and be automatically lowered onto the field scene. When the container 80 disappears on the rear base 71c, the rear base 71c is turned up and returned to its original position by the biasing force of the spring 73. It is assumed that the center of gravity is in a state where the harvest is uniformly stored in the container 80 and is located at the approximate center of the front, rear, left, right, top and bottom.

Moreover, after confirming that the container filled with the harvested item is placed on the left conveyance table 71L, it can be lowered onto the field. That is, the length of the left carriage 71L is divided into the front and rear, and the length obtained by adding the front carriage 71b and the rear carriage 71c in the front-rear direction is substantially the same as the longitudinal length of the right carriage 71R. It is configured to be slightly shorter than the longitudinal length of 71b, and a spring 73 is interposed between them in the same manner as described above.
In such a configuration, when the container 80 filled with the harvest is moved from the right transport table 71R to the left transport table 71L, the center of gravity of the container 80 storing the harvest is positioned in front of the fulcrum shaft 72. Therefore, the container 80 is placed on the front base 71b and temporarily held, and the rear base 71c does not turn down when the container moves in the lateral direction, and the container 80 does not turn over. By pushing down the rear side by hand, the container 80 is inclined rearward, and the center of gravity moves rearward from the fulcrum shaft 72 so that it slides down on the rear base 71c by its own weight, and can be lowered to the field scene.
Further, the left conveyance table 71L may be configured to rotate downward by an actuator 79 such as a cylinder, as an integral configuration that is not divided into front and rear. That is, an actuator such as a cylinder may be interposed between the left carriage 71L and the body frame 5, and the left carriage 71L may be lowered or raised by an operation of a switch, a lever, or the like. In this case, an elevating switch is disposed in the operation unit 90 and is raised and lowered by an operator's switch operation. Alternatively, a sensor 21 comprising a contact or light sensor or a weight sensor for detecting the presence or absence of a container is arranged on the left transport table 71L, and when the container 80 is positioned on the left transport table 71L, the sensor 21 is lowered, and from the left transport table 71L. It can also be configured to rise when it runs out. In this case, as shown in FIG. 3, the container detection sensor 21 is arranged at the rear left end of the left conveyance table 71L, the actuator 79 is arranged on the left side of the left conveyance table 71L, and the container detection sensor 21 and the actuator 79 are the controller. 23.

  Further, the right conveyance table 71R is located on the right side of the rear part of the machine body, that is, on the side opposite to the operation unit 90, and stores the harvested product falling from the dropping chute 85 in the container 80. A locking body 74 is disposed on the left end of the right conveyance table 71R. The locking member 74 is a member that temporarily stops the container 80 from moving to the left conveying table 71L due to the rolling of the roller 71a, and is a member that can be easily overcome by being formed of a convex member. Good. Specifically, a semicircular or triangular or “heavy” rod-like body in the rear view is fixed to the left end of the right carriage 71R so as to be higher than the upper surfaces of the other rollers 71a, or hemispherical Alternatively, “heavy” convex parts are provided at predetermined intervals in the front-rear direction, or the left end roller 71a is positioned higher than the other rollers, or the left end roller 71a has a different diameter. The diameter of the roller can be larger. Or the latching body 74 can also be set as the structure urged | biased so that it may protrude upwards by elastic bodies, such as a spring, from the downward direction. Note that the biasing force of the spring in this case is a spring force that contracts with respect to the weight when the container 80 is full.

  With this configuration, when an empty container is slid leftward from the right side container base 75 and moved onto the right transport base 71R, the lower left portion of the empty container abuts against the locking body 74 and stops. be able to. Then, when the harvest is thrown into the container 80 placed on the right conveyance table 71R and becomes full, the operator pulls the container 80 toward the control unit 90 side, or from the container table 75 side to the control unit 90 side. The container 80 can get over the locking body 74 and be placed on the left conveyance table 71L. Alternatively, in the case of a configuration in which the locking body 74 is configured to be retractable and biased upward by an elastic body such as a spring from below, the container 80 that is full is strongly pulled toward the operation unit 90 side, The locking body 74 is housed below and can be placed on the left conveyance table 71L.

  It is also possible to automatically place the container 80 placed on the right transport table 71R on the left transport table 71L. In other words, the weight sensor 22 is arranged on the right conveyance table 71R to detect the weight of the container 80. On the other hand, the locking body 74 is configured to be movable up and down, and the locking body 74 is configured to be lifted and lowered by an actuator 78 such as a cylinder or a motor. Then, the actuator 78 and the weight sensor 22 are connected to the controller 23.

In such a configuration, a harvested product is put into the container 80 placed on the right conveyance table 71R, the weight of the container 80 is detected by the weight sensor 22, and the value is input to the controller 23. When the detection value of the weight sensor 22 reaches the set value, that is, when the weight of the container 80 reaches a set weight that is substantially full of the harvested product, the actuator 78 is operated to lower the locking body 74. Then, the container 80 placed on the right conveyance table 71R is released from the engagement of the engagement body 74, and the roller is rolled by its own weight automatically by the inclination of the container conveyance table 71 onto the left conveyance table 71L. Move. Then, when the container 80 is not present on the right conveyance table 71R, the value of the weight sensor 22 becomes equal to or less than the set value, and the locking body 74 is raised to the original position, and the next empty container 80 can be locked. As described above, the container 80 on the left carriage 71L is lowered onto the field with the left carriage 71L tilted rearward and downward.
However, if there is no empty container 80 on the container stand 75, the harvested product cannot be accommodated when the container 80 is moved onto the left transfer stand 71L. Therefore, an empty container is placed on the container stand 75 on the right side of the right transfer stand 71R. A detection sensor 29 is arranged, and the empty container detection sensor 29 is connected to the controller 23. The controller 23 is connected to an operation actuator 81 for the main clutch or an actuator for stopping the engine.
Thus, when the weight sensor 22 detects that the weight of the container 80 is the set weight, the empty container detection sensor 29 detects whether or not the empty container 80 is on the container table 75, and if so, the actuator 78 is activated. Then, the locking body 74 is lowered and the container 80 is moved to the left conveyance table 71L. At the same time, the empty container 80 is also moved from the container table 75 to the right conveyance table 71R. When the empty container 80 is not on the container stand 75, the actuator 81 is operated to stop traveling and transporting or stop the engine to replenish the empty container.

  An empty container 80 is placed on the container stand 75 to stand by, and the container 80 is supplied from the container stand 75 to the container transport stand 71. The container base 75 and the container transport base 71 form a series of container transport units 7.

2, 3, 4, and 7, a drop chute 85 is provided below the rear end of the transport device 40, and the onion transported to the end of the transport device 40 is dropped. After being inherited on the chute 85, it is put into the container 80. The upper left end of the drop chute 85 is located on the left side of the left conveyance guide 48 and extends obliquely downward to the right, and the lower right end is more than the left end of the container 80 placed on the right conveyance table 71R. The position is inside the right container 80. However, a cushion made of an elastic body such as rubber can be disposed between the lower end of the conveying device 40 and the drop chute 85.
By comprising in this way, the onion conveyed by the conveying apparatus 40 is brought close to the left and right center while being guided by the conveying guides 48, 48, falls from the rear end of the conveying apparatus 40, and is guided by the dropping chute 85, It is housed in the container 80 placed on the right conveyance table 71R.

  Further, as shown in FIG. 3, the left end of the container base 75 is provided so as to be rotatable about a hinge portion 76 provided on a stage 77 standing on the machine body frame 5. When the stand 75 is not used, the container stand 75 is configured to be able to be rotated and folded and stored. In addition, the support 8 that is erected from the machine body frame 5 is provided with a fixing portion 88 of the container base 75, and the container base 75 is folded by holding the container base 75 at the fixing portion 88. Is to be maintained.

  Further, as shown in FIG. 3, the ground height of the transport surface of the container base 75 is provided so as to be inclined so that the side close to the hinge portion 76 is lowered in the expanded state, that is, the right end farthest from the airframe. In FIG. 3, it is provided to be inclined in the left-right direction so that the portion is high and the hinge portion 76 side is low.

As shown in FIG. 2, the operation unit 90 includes a clutch lever 91, side clutch levers 92 and 93, an accelerator lever 94, an engine switch 95, and the like.
The shift guide of the clutch lever 91 is formed in a U shape having a low speed side (use during operation) and a high speed side (use during movement).
When the clutch lever 91 is put on the low speed side (used during work), a clutch for inputting driving to the working unit (conveying device 40, scraping device 30) and driving to the traveling unit (crawler traveling device 2) are input. Both for the clutch to be connected. Thereby, it will be in the state which can be worked.
Further, when the accelerator lever 94 is set to the neutral position and the clutch lever 91 is moved to the low speed side, the clutch for inputting the drive to the working unit (the conveying device 40 and the scraping device 30) is connected and stopped. In the state, the working unit can be driven.

On the other hand, when the clutch lever 91 is placed on the high speed side (used during movement), the clutch for inputting the drive to the working unit (conveying device 40, raking device 30) is disconnected, and the traveling unit (crawler traveling device 2) is disconnected. A clutch for inputting drive is connected. Thereby, it will be in the state which can drive | work.
The engine switch 95 is configured, for example, as a push button, and when the switch is operated, the engine is stopped and the driving of the working unit / traveling unit is stopped. With this configuration, when it is necessary to replace the container 80 or the like during work, the operation of the working unit / traveling unit can be quickly stopped by one operation of the engine switch 95. Is improved.
In addition, since the drive system of the working unit (conveying device 40 and scraping device 30) and the driving system of the traveling unit (crawler traveling device 2) are independent from each other, for example, the transport device 40 and the scraping device It is possible to make the driving speed of the device 30 constant and reduce only the traveling speed by operating the accelerator lever 94 so that the onion is surely scraped.

  In the configuration shown in FIG. 4, the left and right arrangements are reversed, that is, the container base 75 is arranged on the left side (lower side in the drawing of FIG. 4) with respect to the aircraft traveling direction, and the operation unit 7 may be arranged on the right side.

The front whole perspective view of a vegetable harvesting machine. The whole top view of a vegetable harvesting machine. Rear view of vegetable transplanter. The right view of a vegetable transplanter. The figure shown about the structure of the conveyance surface of a conveying apparatus. The side view of a stirring device. The side view of a conveyance apparatus rear part and a container conveyance stand. The side view of the height adjustment part of a conveying apparatus and a raking part. The figure which shows the state which lowered | hung the body with the block diagram of a crawler type traveling apparatus and inclination control. The figure which shows the state which raised the body by the block diagram of a crawler type traveling apparatus and inclination control. The conveyance device and the spraying device perspective view.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Vegetable harvesting machine 2 Crawler traveling device 3 Scraping part 4 Vegetable conveyance part 7 Container conveyance part 40 Conveyance apparatus 71 Container conveyance stand 71L / 71R Conveyance stand 75 Container stand 80 Container 85 Drop chute 90 Operation part

Claims (4)

A crawler traveling device disposed at the lower part of the machine body, a scraping unit disposed at the foremost part of the body, a vegetable transporting unit provided continuously behind the scraping part, and disposed above the rear part of the crawler traveling device. A self-propelled vegetable harvesting machine that includes a container transport unit, an operation unit, and drives the crawler traveling device to harvest vegetables while advancing the machine body,
A container transport base is arranged in the left-right direction below the rear part of the transporting device of the vegetable transport section, the container transport base is divided into left and right, and containers can be placed on the left and right transport bases, respectively. A vegetable characterized in that a drop chute is provided in a container placed on the container so as to accommodate a harvested product falling from the transport device, and the left and right transport tables can be tilted downward from a substantially horizontal state. Harvester.   The vegetable harvesting machine according to claim 1, wherein the left and right conveyance tables are arranged on the operation unit side.   The container carrier is inclined so that the left and right sides are lowered, the left and right one carrier is arranged on the upper side of the slope, and a locking body is provided on the inclined lower end of the left and right side carrier. The vegetable harvesting machine according to claim 1, wherein the vegetable harvesting machine is provided so as to protrude upward. 4. The vegetable harvesting machine according to claim 3, wherein the locking body is constituted by a roller and is configured to be housed inside a conveyance table, and the roller is urged upward by an elastic member.

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