JP3436616B2 - Agricultural harvester - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a crop harvesting method in which root vegetables such as sweet potatoes, potatoes, and konjac potatoes are harvested from a field, selected and stored in a container. BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an agricultural machine, and more particularly to an agricultural harvester provided with a container mounting table having a foldable holder for mounting a container for packing agricultural products on a side of the machine. 2. Description of the Related Art Conventionally, as a harvester for harvesting root vegetables such as sweet potatoes, potatoes, and konjac potatoes from a field, sorting and storing the crops, the slope is inclined from the lower front of the self-propelled body to the upper center of the body. A conveyor device capable of transporting agricultural products excavated by the inclined transport unit and performing a sorting operation by a sorting transport unit provided horizontally at the rear is provided, and a machine side which is a side of the conveyor device. The present applicant has proposed an agricultural product harvester in which agricultural products are packed in a container placed on a holder of a provided container mounting table. [0003] By the way, at the working position provided on the side of the body of the agricultural product harvester described above, vines and foliage other than potatoes, foliage other than potatoes, large soil mass, Pre-processing operations such as removing stones and separating from the connecting stems are performed, and agricultural products are also packed into containers placed on the holder of the container mounting table provided on the side of the aircraft. It is possible. [0004] However, when the agricultural products packed in the container become full, the container on the holder of the container mounting table is replaced with an empty container, or an empty container is stacked on the full container. Need
Although it is necessary to prepare an empty container, there is no space for mounting an empty container around the fuselage, and the container storage efficiency has been reduced. [0005] The present invention has been made in view of such circumstances, and has as its object to provide an agricultural product harvester capable of improving container storage efficiency. [0006] In order to achieve the above object, the agricultural product harvester of the present invention excavates a field from a front lower part of a self-propelled body through a center upper part of the body to a rear part of the body. A digging conveyor device for transporting agricultural products is provided, and a worker step and a work chair for performing a sorting operation are provided beside the digging conveyor device, and the worker step and the work chair are provided near the worker step and the work chair. A container mounting table having a first holder and a second holder for mounting a container filled with the agricultural products is provided on a side of the self-propelled body, and protrudes from the first holder.
Folding the second holder to the first holder side
The first holder and the second
The container can be placed on the rudder . [0007] In the agricultural product harvester of the present invention, the agricultural product is provided on the side of the self-propelled machine near the work step and the work chair provided on the side of the excavating conveyor device. In the case where the container mounting table having the first holder and the second holder for mounting the container in which the container is packed is provided, the second holder is rotated from the first holder to protrude. The empty container can be placed on the second holder side, and the empty container can be stacked on the full container on the holder even when the self-propelled body is moving. . If the second holder projecting from the first holder becomes an obstacle during traveling, the second holder can be folded toward the first holder, and these folded first holders can be folded. And placing the container on the second holder. Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 to FIG. 3 show a potato harvester according to an embodiment of the agricultural product harvester of the present invention. [0010] As shown in these figures, the potato harvester 1
Is equipped with a crawler 3 which forms a left-right pair and is capable of spinning (super-spinning). The driving force to the crawler 3 is transmitted from an engine 4 mounted on the front side of one side of the fuselage 2 via a transmission 5 provided between the crawlers 3 at a lower position near the rear of the fuselage 2. ing. Further, a digging conveyor device 10 for excavating agricultural products in a field is provided from a lower front portion of the fuselage 2 between the crawlers 3 to a rear portion of the fuselage through an upper center portion of the fuselage, and the conveyor device 10 is driven as described above. This is provided by the driving force of the engine 4. The digging conveyor device 10 comprises a digging blade 11 inclined forward and an endless link rod, and descends at a predetermined angle toward an inclined conveying section 12 having slats at predetermined intervals and a terminal end. Each of these is supported by a pair of left and right side frames (frames) 6 of the machine body 2. Further, the excavating conveyor device 10 is rotatable up and down around a rotating shaft (rotating fulcrum) (not shown) at the rear end thereof, and is provided between the machine body 2 and the side frame 6. The vertical movement can be adjusted by the expansion and contraction operation of a hydraulic cylinder (not shown). Here, the transmission 5 that receives power from the engine 4 and shifts is provided with a hydraulic continuously variable transmission (HST) that performs a continuously variable shift (not shown), and is combined with a transmission gear. In addition to the stepped / stepped speed change output, the power transmission is connected / disconnected via the side clutch and the differential device, and the crawler 3 can be steplessly / stepped and the spinning (super turning) can be performed. I do. The transmission 5 transmits the speed-changed power to the excavating conveyor device 10, and the speed of the conveyor can be adjusted steplessly and stepwise. In combination with step 3 or stepless running, the excavation work speed can be set freely. A first operation unit 20 and a second operation unit 21 are provided on both sides of the body 2 behind the engine 4, and the first operation unit 20 and the second operation unit 21 are further provided.
A step 24 is provided behind. The step 24 is connected to a support arm 25 whose base is rotatably attached to the lower part of the body 2.
By rotating the base portion, the step 24 can be tilted substantially horizontally, or can be folded toward the body 2. [0017] Then, step 2 of tilting to a substantially horizontal state
The first operation unit 20 and the second operation unit
The user can operate the operation unit 21 to operate the aircraft and operate the driving unit, and can perform the sorting operation in the sorting and transporting unit 13. At the rear of the machine body 2, a work chair 31 having a sheet metal part 32 forming a backrest portion by a rotation support mechanism 30 is rotatably arranged so as to be in contact with and away from the machine body 2. Further, the work chair 31 can appropriately set a fixed position in accordance with the operator's system by adjustment using a fine adjustment bolt (not shown). When the work chair 31 is not used, the rotation support mechanism 30 is used. The work chair 31 can be removed from above the step 24 by releasing the fixation of the work chair 31 by, so that the user can get on and off the step 24 without being disturbed by the work chair 31. A step 28 and a work chair 29 are also provided on the side of the body 2 opposite to the engine 4. Vines and foliage, large clods,
Pretreatment operations such as removal of stones and the like and separation of connected stems are performed. The steps 28 and the work chair 29 may be fixed to or detached from the side of the body 2. A bracket 41 projecting forward from the left and right side frames 6 of the excavating conveyor device 10 is provided with a ridge follower 40 that follows the movement of the machine body 2 along the length direction of the ridge to be harvested. Have been. The pair of wheels 42 of the ridge follower 40 are in contact with the inclined shoulders of the ridge to be harvested, and can be adjusted vertically by a vertical adjustment mechanism 43 and can be adjusted horizontally by a slide mechanism 44. It has been. Further, a container mounting table 50 for mounting one container (not shown) is provided at the rear of the body 2. The container mounting table 50 is provided with a support arm 52 connected to the air cylinder 51 and a holder 53 supported by the support arm 52. The holder 53 is folded toward the body 2 by driving the air cylinder 51,
It protrudes outward from the body 2. When the holder 53 of the container mounting table 50 is used by projecting outward from the machine body 2, the air cylinder 51 contracts due to the weight to be accommodated in the container and automatically tilts. When the weight is small, the container approaches the sorting and transporting unit 13 side, and gradually increases as the weight increases.
Keep away from the side to reduce the damage to the potatoes. Further, container mounts 60 and 70 are also provided on the front side of the body 2, and these are all holders attached to the support arms 62 and 72 by driving an air cylinder (not shown) in the same manner as described above. 63 and 73 are folded toward the body 2 or protrude outward from the body 2. Further, on the container mounting table 70 side,
When the holder 74 is rotatably attached to the holder 73 via hinge members 76 and 77 that can swing about a shaft 75 as a fulcrum, and the holder 74 is rotated from the holder 73 to protrude. , An empty container can be placed on the holder 74 side, and even if the airframe 2 is moving,
Empty containers can be stacked on top of the full container on holder 73 without having to get on and off from step 28. Further, when the holder 74 protruding from the holder 73 becomes an obstacle during traveling, the holder 74 is folded toward the holder 73 to not only prevent the traveling obstruction but also to place the container on the folded holder 73. Placement is possible. The container mounting tables 60, 7
Even if it is at 0, it is automatically tilted according to the weight of the container in the same manner as described above. On each of the outer side surfaces (side plates) of the first operating portion 20 and the second operating portion 21, there are provided container locking hooks 22 which are fitted and locked into handle holes of empty containers.
A contact member 23 made of an elastic body (for example, a rubber plate or a synthetic resin plate) is provided below the container locking hook 22. Then, the empty container locking hook 22 is fitted with the handle hole of the container and locked, and the lower end of the container is abutted against the abutting member 23, so that the spare container is elongated in the left-right direction. Can be locked. By placing another empty spare container in the locked empty container in the vertical position, a total of two spare containers can be prepared. The lower part of the sorting and conveying part 13 is hollow, and the soil and foreign matters adhering to the crop on the sorting and conveying part 13 fall directly from the hollow to the field. . A gate-shaped grip portion 26 is provided at a position above the step 24 behind the sorting and transporting portion 13, and the body of the worker is placed at a position behind the sorting and transporting portion 13 between the grip portions 26. A protector 27 for preventing the camera from falling down to the side is provided. On one side of the protector 27,
When the operator is caught in the sorting and transporting unit 13,
A stop switch (not shown) for stopping driving of the conveyor device 10 is provided. As described above, the step 28 and the work chair 29 for the worker are provided on the side of the body 2 opposite to the engine 4, and the work chair 29 is tilted while sitting on the work chair 29. It removes vines, foliage, large clods, stones, and the like other than potatoes from the crops conveyed by the conveyance unit 12, and mainly extracts from the crops that are dug up by the digging blade 9 and connected in a group and conveyed. It is possible to perform pretreatment operations such as separating the stem from the connected stem.
The work chair 29 may be provided detachably. Next, the operation of the kind harvester 1 having the above-described configuration will be described. First, when root crops such as sweet potatoes, potatoes, konjac potatoes, and short root ginseng are harvested from the field by the potato harvester 1, the fixing position of the work chair 31 on step 24 is adjusted. In this case, as described above, the fixing position according to the operator's system is set by adjustment using a fine adjustment bolt (not shown). When the work chair 31 is not used, the work chair 31 is removed from the step 24 by releasing the fixation of the work chair 31 by the rotation support mechanism 30. When the holder 74 is used on the container mounting table 70 side, the holder 73 to the holder 7 are used.
4 is rotated, and empty containers are placed on the holders 73 and 74. On the other hand, when traveling, the holder 7
When the holder 74 projecting from the position 3 becomes an obstacle, the holder 74 is folded toward the holder 73 and an empty container is placed on the folded holder 73. When harvesting root vegetables such as sweet potatoes, potatoes, konjac potatoes, and short root ginseng from the field by the potato harvester 1, the wheel 42 of the ridge following device 40 is placed on the inclined shoulders of the ridge to be harvested. Rolling and excavating conveyor device 10
The excavation blade 11 is vertically moved by a hydraulic cylinder to adjust the excavation depth, and the crop is excavated by the excavation blade 11 as the machine body 2 moves forward. In this state, the sheet is transported obliquely above the body 2 by the inclined transport section 12. During this transfer, soil falls from between the link rods, and vines and foliage other than potatoes, foliage, large lumps, stones, etc., other than potatoes are removed from the crops transferred on the inclined transfer section 12 by the worker sitting in the work chair 29. When a pre-processing operation such as removal or removal of the connected stem is mainly performed from the crops that are removed or conveyed in a collective manner, the crops are sorted and transported in a state where the containers can be easily packed. Brought to the side. At the same time as performing such a pre-processing operation, it is also possible to perform an operation of packing only the potatoes in the container in the container on the holder 73 of the container mounting table 70. When the harvest in the container on the holder 73 is full, the holder 63 of the adjacent container mounting table 60 is closed.
By moving the container on the holder 73 upward or by stacking an empty container placed on the holder 74 rotated from the holder 73 on the container on the holder 73, the work of packing the harvest is continuously performed. be able to. At this time, since an air cylinder (not shown) is provided on the container mounting table 70, the container is initially approaching the inclined conveying section 12 when the weight of the container is small, and the weight of the container is small. Becomes larger and gradually becomes more distant from the inclined conveying section 12, so that the pieces are stored with less damage. Then, only the potatoes among the crops conveyed to the sorting / conveying section 13 are sorted by riding on the step 24 or by sorting while sitting on the work chair 31. The sorting operation is performed, and the container is placed in a container placed on the container placing table 50. At this time, when the work of stuffing the agricultural products is performed while sitting on the work chair 31, the work chair 31 is stabilized by squatting the feet in the sitting posture, and the stuffing work can be performed in an easy posture. Further, since the sorting / conveying unit 13 is inclined backward and downward, the operating range of the operator's hand / arm is almost equal to the sorting / conveying unit 13, so that the sorting operation can be easily performed and fatigue is reduced. . Further, since the container mounting table 50 is provided with the air cylinder 51, the container approaches the sorting and transporting section 13 at first when the weight of the container is small, and as the weight increases, Gradually, it is separated from the sorting and transporting section 13 and is stored with less damage. When the potatoes in the container on the container mounting table 50 are full, the harvesting operation is temporarily suspended, and the container is replaced with a spare container locked and supported by the container locking hook 22. Resume harvesting. The operator who got on the step 24 at the time of such a sorting operation can not only get caught by the grip portion 26 but also protector 2
7, it is possible to prevent the conveyor device 10 from falling down to the sorting / transporting unit 13 side and to stop the driving of the conveyor device 10 by a stop switch (not shown). Further, the excavating conveyor device 10 is capable of adjusting the moving speed steplessly or stepwise, and
Since it is possible to move up and down with respect to the machine body 2, by selecting an appropriate moving speed and excavation depth according to field conditions and crop conditions, a highly accurate and efficient harvesting operation is performed. As described above, in the present embodiment, the container is placed on the side of the machine body 2 near the work chair 29 and the step 28 for performing the sorting work provided on the side of the excavating conveyor device 10. Folding holders 73 and 74 to be placed
Is provided, the holder 73 is provided.
When the holder 74 is rotated and protruded, an empty container can be placed on the holder 74 side, and the empty container can be filled on the holder 73 even when the machine body 2 is moving. The container 74 can be stacked on the container that has been turned over, and the holder 74 that protrudes from the holder 73 during traveling.
In the case where the holder 73 becomes an obstacle, the holder 74 can be folded toward the holder 73, and the folded holders 73 and 74 can be folded.
Since the container can be placed on the container, the container storage efficiency is improved. Further, in the present embodiment, the work chair 31 provided behind the excavating conveyor device 10 is rotatable so as to come into contact with and separate from the body 2 and the work chair 3
In the case where the work chair 1 is used, the rotation support mechanism 30 prevents the work chair 31 from turning away from the body 2, so that the feet can be stabilized while sitting on the work chair 31 while sitting on the work chair 31. Can take a sitting position. Further, when the work chair 31 is not used, the rotation of the work chair 31 in the direction away from the machine body 2 is made free by the rotation support mechanism 30, so that the work chair 31 is separated from the machine body 2. By pivoting in the direction, the work chair 31 can be removed from the position above the step 24, and the user can get on and off the step without being disturbed by the work chair 31. Furthermore, the first operation unit 20 and the second operation unit 21 are provided on both sides of the body 2 and the step 24 is provided below the rear part of the body 2, so that only one worker can operate the body and harvest. It is possible to carry out the sorting operation of the items and the container storing operation of the sorted harvested items, and it is possible to perform a multifunctional operation even though it is a small harvester. Further, since the crawler 3 travels while being stepped between stepless and stepped, and enables spin turning (super turning), the body 2 spins stably on headlands or the like. Thus, it is possible to move to the next harvest ridge with one turn, and furthermore, it is possible to turn in a balanced manner in either the left or right direction, so that the crawler 3 does not greatly scrape the soil of the field. Further, a ridge following device 40 is provided in front of the excavating conveyor device 10 to follow the body along the length of the ridge to be harvested along with the movement of the machine body. The wheels 42 are provided facing each other and supported so as to be vertically adjustable and left and right adjustable with respect to the excavating conveyor device 10, so that both wheels 42 accurately follow the ridge to be harvested and automatically steer the aircraft. Automatic excavation and transport by the excavation conveyor device 10 are performed. Therefore, the operator can spend most of the time on the sorting operation except for the operation of steering the machine at the ridge end of the ridge to be harvested. When the headland turning is performed at the field end, the excavating conveyor device 10 is rotated by a hydraulic cylinder using a rotary shaft (rotation fulcrum).
By rotating the crawler 3 upward and downward around the center, the crawler 3 can turn with a small turning radius together with the spin turning. As described above, according to the agricultural product harvester of the present invention, the steps are provided on the side of the excavating conveyor device and are in the vicinity of the operator's steps and the work chair. Since a container mounting table having a first holder and a second holder for mounting a container filled with agricultural products is provided on a side of the self-propelled body, a second holder is provided from the first holder.
When the holder is rotated and extended, an empty container can be placed on the second holder side, and even if the self-propelled body is moving, the empty container can be placed on the holder. The second holder can be folded to the first holder side when the second holder projecting from the first holder becomes a hindrance while traveling, as well as being able to be stacked on a full container. Since the container can be placed on the folded first holder and the second holder, the container storage efficiency can be improved.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing a potato harvester according to an embodiment of the agricultural product harvester of the present invention. FIG. 2 is a plan view showing the potato harvester of FIG. 1; FIG. 3 is a side view showing the potato harvester of FIG. 1; FIG. 4 is a rear view showing the potato harvester of FIG. 1; FIG. 5 is a rear view showing the potato harvester of FIG. 1; [Description of Signs] 1 Potato harvester 2 Body (monocoque frame) 3 Crawler 4 Engine 5 Transmission 10 Digging conveyor device 20 First operation unit 21 Second operation unit 24 Step 30 Rotation support mechanism 31 Work chair 33 Frame 34 Flange 35a Fine adjustment bolt 36 after adjustment Plate holding portion 37 Grip 38 Stopper plate 40 Ridge following device 50, 60, 70 Container mounting table 73, 74 Holder 76, 77 Hinge member

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int. Cl. ⁷ , DB name) A01D 13/00-33/14

Claims (1)

(57) [Claims 1] A digging conveyer device for transporting agricultural products from a digged field is provided from the lower front of the self-propelled airframe to the rear of the airframe through the upper center of the airframe. A container for loading the agricultural products on the side of the self-propelled body near the conveyor step with the operator's steps and work chairs for performing the sorting operation on the side of the conveyor device. And a container mounting table having a first holder and a second holder for mounting the second holder.
The first holder side is made to be freely foldable and before being folded
The container is placed on the first holder and the second holder.
An agricultural product harvester characterized in that it can be installed.