JPH08149913A - Agricultural product harvester - Google Patents

Abstract

PURPOSE: To provide a agricultural product harvester constituted so as to harvest and sort root vegetables such as sweet potato, potato, taro or devil's-tongue and house the root vegetables into a container. CONSTITUTION: This agricultural product harvester is obtained by providing a digging conveyer apparatus 6 for digging agricultural products in a field and conveying the agricultural products from the front in the lower part of a self-traveling machine body 2 through the upper part of the center of the machine body to the rear of the machine body in the self-traveling machine body, providing a step 14 for operator located behind the digging conveyer apparatus 6 and carrying out operation of machine body and sorting operation and installing a supporting body 28 for supporting the rear side of the operator behind the step 14 for the operator. The supporting body 16 is rotatably provided in used position protruded behind the step 14 for operator and unused position disconnected from the rear of the step 14 for operator.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention is applicable to, for example, sweet potato, potato,
The present invention relates to an agricultural product harvesting machine in which root vegetables such as taro and konjac potato are harvested from a field, selected, and stored in a container.

[0002]

2. Description of the Related Art Conventionally, root crops such as sweet potatoes, potatoes, taros, and konjac potatoes are harvested from a field, sorted, and housed as agricultural products harvesters, which are self-propelled and vegetated in the field. It has been proposed by the applicant that a harvesting conveyor for harvesting and transporting agricultural products and a worker step located behind the harvesting conveyor for carrying out machine operation and sorting work are provided. .

[0003]

The steps for the worker of the above-mentioned conventional agricultural products harvesting machine are provided at a low position so that the worker can easily get on and off from the rear of the machine, and the posture of the worker who stands on the step stands up. Although the aircraft is operated and the sorting work is performed with the protector, although a protector is provided for performing the sorting work, a support for supporting the rear part of the standing worker is not provided and the worker is not provided. There was a risk that his work posture would become unstable and be dropped from the step. The present invention has been made to solve the above problems.

[0004]

To achieve the above object, the present invention provides (1). The self-propelled aircraft is equipped with a digging conveyor device that digs and conveys agricultural products in the field from the front of the fuselage to the rear of the aircraft through the center of the fuselage. And that a step for the worker for performing the sorting work is provided, and behind the step for the worker, a support body that supports the back side of the worker is provided.

(2). It is characterized in that the support is rotatably provided in a use position overhanging behind the worker step and a non-use position separated from the back of the worker step.

[0006]

With the above construction, the agricultural product harvester of the present invention is
It has the following effects. ． The self-propelled aircraft is equipped with a digging conveyor device that digs and conveys agricultural products in the field from the front of the fuselage to the rear of the aircraft through the center of the fuselage. And a step for the worker for performing the sorting work, and a work for riding on the step for the worker by arranging a support for supporting the back side of the worker behind the step for the worker The person's body is supported by the support from the back, and stable work can be performed.

[0007]. The support can be easily rotated between the use position and the non-use position by allowing the support body to rotate between the use position that projects behind the worker step and the non-use position that separates from the back of the worker step. It can be switched to, and when it is in the non-use position, it does not interfere with storage and transportation.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be specifically described below with reference to the accompanying drawings. 1 to 3, reference numeral 1 denotes a potato harvester. This potato harvester 1 includes a body 2 made of a monocoque frame and a pair of crawlers 3 and 3 which can make a left and right spin spin. There is. Aircraft 2
An engine 4 is mounted on one side of the vehicle, and a hydraulic device driven by the engine 4 is provided near the engine 4. A transmission 5 is provided between the crawlers 3 and 3 at a lower position near the rear of the machine body 2. Also, crawlers 3, 3
Between the front lower part of the machine body 2 and the upper part of the machine body to the rear part of the machine body, there is provided a digging conveyer device 6 which digs agricultural products in the field and conveys them to the rear side, inclining so that the tip side descends. A first operation unit 7 and a second operation unit 7a are provided on both sides of the machine body 2 on the rear side of the engine 4.

The digging conveyor device 6 is supported by a pair of left and right side frames (frames) 8 and is provided with a digging blade 9 at its tip. Tool 10 and an endless slanting conveyance section 11 comprising an endless rod (bar) conveyor which rotates rearwardly behind the soil sieving tool 10 and which has slats at predetermined intervals and which includes a vibration switching lever 11a. And a sorting and transporting unit 12 that transports them so as to descend slightly toward.
Further, the excavation conveyor device 6 is vertically rotatable about a rotation fulcrum 6a at an intermediate portion thereof, and is rotated by an expansion / contraction operation of a hydraulic cylinder 13 provided between the machine body 2 and the inclined transport unit 11. It is designed to move.

Located at the rear of the digging conveyor device 6 to operate the first operating section 7 and the second operating section 7a to operate the machine body and drive section, and to sort in the sorting and conveying section 12. A worker step 14 is provided for a worker who works to get on. The step 14 is supported by a pair of left and right support arms 14a, and by rotating the base of the support arm 12a, the step 14 can be displaced between a substantially horizontal use position and a storage position folded toward the machine body. There is. Further, only step 14 may be configured to rotate between the use position and the storage position.

The rake-shaped soil sieving tool 10 includes side frames 8,
On the lower surface of the digging blade 9 supported between the
The bases are fixed at predetermined intervals by means such as welding, and the other ends are free ends. Further, the wire rods 15, 15 ... May be synthetic resin elastic wire rods integrally formed on the base end side. An elastic body 16 such as rubber is coated (deposited) from the free end side of each wire 15 and the rear end of this elastic body 16 projects rearward from the rear end of the wire 15 and Wider part 16 that is wider than the covering part
a.

The transmission 5 that receives power from the engine 4 to change gears is equipped with a hydraulic continuously variable transmission (HST) (not shown) that continuously changes gears. The power transmission is connected to and disconnected from the side clutch and the differential device to make the crawlers 3 and 3 travel continuously and steplessly, and spin turning is possible. Further, the transmission power is transmitted from the transmission 5 to the excavation conveyor device 6, and the moving speed of the conveyor can be adjusted continuously and steplessly. By combining with stepped traveling, the mining work speed can be set freely.

Left and right side frames 8, 8 of the digging conveyor device 6
The ridge-following device 18 is provided on the bracket 17 protruding forward from the ridge-following unit along with the movement of the machine body along the length direction of the ridge to be harvested. This ridge-following device 18 includes a pair of wheels 19 and 19 which roll on both inclined shoulders of the ridge to be harvested.
Are provided to face each other, and both wheels 19 can be vertically adjusted with respect to the excavation conveyor device 6 by an up / down adjusting mechanism 20,
Moreover, it is supported by the slide mechanisms 21 and 21 so that the left and right movements can be adjusted. Further, the pair of wheels 19 and 19 have a camber angle and rotate in contact with both inclined shoulders of the ridge to be harvested so that the machine body can be steered and moved following the ridge to be harvested. .

A pair of left and right container platforms 22 are provided on both sides of the machine body 2 behind the operating devices 7 and 7a. The container mounting table 22 is rotatably supported in a use position in which one container is overlaid so as to be mounted and a storage position in which the container is rotated and stored on the machine body 2 side.
In the use position, the air cylinder 23 can be rotated in the left-right direction through the air cylinder 23, and the air cylinder 23 contracts and automatically tilts depending on the weight of the object to be accommodated in the container. At this time, the container approaches the sorting and conveying section 12 and gradually separates from the sorting and conveying section 12 as the weight increases, so that scratches on the spoils are reduced.

The outer surface (side plate) of each of the first operating portion 7 and the second operating portion 7a has a mounting surface to be attached to a body side plate, which is fitted and locked in a handle hole of an empty container. A container locking hook 24 that is provided and a contact member 25 that is made of an elastic body (for example, a rubber plate or a synthetic resin plate) are provided below the hook 24. Then, the handle hole of the container is fitted and locked to the empty container locking hook 24, the lower end of the container is contacted with the contact member 25, and the spare container is locked in a long state in the left-right direction. I have to. In addition, one empty spare container can be placed in the vertical position in this locked empty container to prepare two spare containers in total.

Nothing is provided below the sorting / transporting unit 12 so that soil, contaminants and the like can be directly dropped from the sorting / transporting unit 12 onto the field, and the rear side above the front side of the step 14. At the position, a protector 26 is provided to prevent the body of the worker who rides on the step 14 from falling toward the sorting and conveying unit 12 side. On both sides of the protector 26, there are provided transport unit stop switches 27 for stopping the driving of the inclined transport unit 11 and the sorting transport unit 12 when an operator has his / her hand caught in the sorting transport unit 12. Further, behind the step 14, a rod-shaped support body 28 that supports the rear side of the worker who rides on the step 14 is arranged. This support 28 has a spring 29 as shown in FIG.
Further, it is provided so as to be rotatable and slidable between a use position protruding behind the step 14 through the guide 30 and a non-use position separated from the back side of the step 14. Sorting and transport unit 12
An elastic soil adhesion preventing plate 31 such as a rubber plate is hung below the end of the conveyance.

On the side of the machine body 2 on the side opposite to the engine 4, vines, foliage, large soil blocks, stones, etc. other than potatoes are removed from the harvested products conveyed by the inclined conveyance section 11, and the digging blade 9 is used. For intermediate sorter seat 32 and intermediate sorter seated by an operator who mainly performs pre-treatment work such as separating the stalk and the connected stems from the harvested products which are dug up and are collectively connected and transported. Step 32a is provided. The front side of the seat 32 for the intermediate sorter and the engine 4
A spare container mounting table 33 for mounting a spare container is provided at the front position of the. The intermediate sorter seat 32, the spare container mounting table 33, and the like may be detachable.

Next, the operation of the potato harvester 1 of the embodiment configured as described above will be described. Potato harvester 1
For example, when harvesting root vegetables such as sweet potato, potato, taro, konjac potato, and ginseng from the field, the ridge-following device 1
The wheels 19 and 8 of 8 are rolled on both shoulders of the ridge to be harvested, and the digging blade 9 of the digging conveyor device 6 is vertically adjusted by the up-down adjusting mechanism 20 to adjust the digging depth, As the machine body moves forward, the harvested product is excavated by the excavating blade 9, and this is sent to the inclined conveyor unit 11 via the soil sieving tool 10 to lift and convey the machine body diagonally upward. During this movement,
Soil sieving tool 10 and, if necessary, vibration switching lever 11a
The soil falls from between the link rods of the inclined transporting unit 11 which is vibrated by the switching of the, and the crops other than the potatoes are harvested from the harvested products transported on the inclined transporting unit 11 by the operator sitting on the intermediate sorter seat 32. Remove foliage, large soil blocks, stones,
In addition, from the harvested products that are grouped and transported,
Pretreatment work such as separation of the stalk and the connected stem is mainly performed, and the pre-treatment work is brought to the sorting and conveying unit 12.

Only the potatoes in the harvested product moving on the sorting and conveying section 12 were put on (stood) on the worker's step 14.
The operator manually selects and stores the containers in the containers placed on the container placing tables 22 and 22. Since the container mounting table 22 is provided with the air cylinder 23, at the beginning when the weight of the container is small, the container is placed in the sorting / transporting unit 1.
2, the weight gradually increases and the distance from the sorting and conveying unit 12 increases, so that the damage and the like of the potatoes are reduced. When the potatoes in the container are full, the harvesting operation is temporarily stopped, and the harvesting operation is restarted by replacing the spare container supported by the container locking hook 24. In the case where an operator who rides on the worker's step 14 at the time of such sorting work is supported by the protector 26 and the support body 28 to safely operate and sort, and the hand is caught in the sorting transport unit 12. First, the driving of the inclined transport unit 11 and the sorting transport unit 12 is stopped by the transport unit stop switch 27. Further, the soil adhesion prevention plate 31 prevents the soil and the like falling from the sorting and conveying unit 12 from being applied to the operator.

Here, the potato harvester 1 comprises a crawler 3,
Between the lower part of the fuselage, the upper part of the fuselage through the upper part of the fuselage to the rear part of the fuselage, the digging conveyor device 6 is provided, and the worker step 14 is provided behind the digging conveyor device 6, so that one operator can The operation of the machine body by the control devices 7 and 7a and the sorting work in the sorting and conveying unit 12 can be performed, and the harvester can be miniaturized to the minimum. Further, since the moving speed of the digging conveyor device 6 can be adjusted steplessly or stepwise and the slanted conveying unit 11 can be moved up and down with respect to the machine body 2 by the hydraulic cylinder 13, the field condition and the crop condition can be obtained. By selecting an appropriate moving speed and an appropriate digging depth in accordance with the above, a highly accurate and efficient harvesting operation can be performed.

Further, the control devices 7, 7a are provided on both sides of the machine body 2.
On the left and right sides of the machine, container mounting tables 22 and 22,
Since each worker's step 14 is provided below the rear part of the machine, one operator can perform the machine operation, the harvesting operation, and the container operation of the harvested harvested material. Can perform multi-functional work. Furthermore, the crawlers 3 and 3 travel continuously and steplessly, and the spin turn is enabled, so that the machine body 2 spins stably on a headland or the like and can be turned once. It is possible to move to the next harvest ridge, and moreover, it is possible to turn in a balanced manner in either the left or right direction. Therefore, the crawlers 3 and 3 do not greatly scrape the soil in the field.

Further, in front of the digging conveyor device 6, there is provided a ridge following device 18 which follows the length of the ridge to be harvested along with the movement of the machine body, and a pair of ridges to be rolled and contact with the inclined shoulders of the ridge to be harvested. Since the wheels 19 are provided so as to face each other so as to be vertically adjustable and horizontally adjustable with respect to the digging conveyor device 6, both wheels 19 accurately follow the ridge to be harvested to automatically steer the machine body. , Digging conveyor device 6
Automatic digging and transportation is performed by. Therefore, the operator can devote most of the time to the sorting work, except for the machine steering operation at the ridge end of the ridge to be harvested. When the headland is turned at the end of the field, the excavation conveyor device 6 is turned around the turning fulcrum 6a by the hydraulic cylinder 13 so as to be raised, so that the crawler 3, 3 is spin-turned and the turning radius is small. It can be swiveled with, and the front and rear length of the machine can be shortened for storage and transportation. When the support 28 is not used, it is rotated to the non-use position.

[0023]

As described above, according to the agricultural product harvesting machine of the present invention, the following effects can be obtained. ． The self-propelled aircraft is equipped with a digging conveyor device that digs and conveys agricultural products in the field from the front of the fuselage to the rear of the aircraft through the center of the fuselage. And a step for the worker for performing the sorting work is provided, and since the support for supporting the rear side of the worker is arranged behind the step for the worker,
The body of the worker who rides on the step for the worker is supported by the support from behind, and the work can be performed stably and safely.

[0024]. Since the support is rotatably provided in the use position overhanging behind the operator's step and the non-use position separated from the back of the worker's step, the support can be easily set between the use position and the non-use position. Can be switched to.
Further, when the harvester is set to the non-use position, it does not hinder the storage and transportation of the harvester.

[Brief description of drawings]

FIG. 1 is a side view of an entire agricultural product harvester according to the present invention.

FIG. 2 is a plan view of the same.

FIG. 3 is a rear view of the same.

FIG. 4 is a partial perspective view of the same main portion.

[Explanation of symbols]

1 potato harvester 2 machine body 3 crawler 4 engine 5 transmission 6 excavation conveyor device 6a rotation fulcrum 7 first operation part 7a second operation part 8 side frame (frame) 9 excavation blade 10 rake-like soil sieve Tool 11 Inclined transfer section 11a Vibration switching lever 12 Sorting transfer section 13 Hydraulic cylinder 14 Step for worker 14a Support arm 15 Wire rod 16 Elastic body 16a Wide part 17 Bracket 18 Ridge tracking device 19 Wheel support arm 20 Vertical adjustment mechanism 21 Slide mechanism 22 Container Placement Table 23 Air Cylinder 24 Container Locking Hook 25 Abutment Member 26 Protector 27 Transport Stop Switch 28 Support 29 Spring 30 Guide 31 Soil Adhesion Prevention Plate 32 Intermediate Selector Seat 32a Intermediate Selector Step 33 Spare Container Table

Claims (2)

[Claims] 1. A self-propelled aircraft is provided with a digging conveyor device for digging and transporting agricultural products in a field from a lower part of the body to an upper part of the center of the body to a rear part of the body, and is located behind the digging conveyor device. Then, an operator step for carrying out the machine control and sorting work is provided, and a support for supporting the back side of the operator is arranged behind the operator step, and the agricultural product harvesting machine characterized by the above-mentioned. . 2. The support is rotatably provided in a use position overhanging behind the worker step and a non-use position separated from the rear of the worker step. Agricultural product harvesting machine described.