JPH0965740A - Harvester for welsh onions - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a self-traveling harvester capable of continuously performing a series of harvesting works of digging up welsh onions such as a white stemmed onion (a deep rooted onion) planted as a ridge in a field, conveying the digged up onions with treating and storing the treated onions. SOLUTION: This harvester for welsh onions is constituted by arranging a digging up conveyer device 6 having a digging blade 16 at its tip and installed with an endless bar-conveyer 12 positioned as continued to the digging blade 16, over from the front of and the lower part of a machine body through the upper part of middle of the machine body to the rear part of the machine body in a self travelling machine body, and installing a left and right pair of guides 18 for preventing the onions digged out of the field from falling down to left and right directions and positioned in the upper direction of the digging up conveyer device 6, a working table 20 for treating the onions conveyed by the digging up conveyer device 6 at the rear of the digging up conveyer device 6 and a stock stage 21 for storing the treated onions in the further rear direction of the working table.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a self-propelled onion harvesting machine, and more specifically, it digs and conveys green onions such as white onions (root deep green onions) planted in a field in a ridge shape. The present invention relates to a green onion harvester that continuously performs a series of harvesting operations for storing the prepared green onions.

[0002]

2. Description of the Related Art Conventionally, white onion harvesting machines have been disclosed in, for example, Japanese Utility Model Publication No. 55-12655, Japanese Utility Model Publication No. 56-52816, and Japanese Patent Application Laid-Open No. 53-12712.
No. 2, gazette No. 54-127704 gazette, gazette No. 5
No. 7-194620. But,
All of these harvesting machines are merely machines for digging white onions, and at present, ones that continuously perform a series of harvesting operations from digging to preparation and storage have not been developed.

[0003]

The white onions (root deep green onions) dug up by the above-mentioned conventional excavation work machine are manually picked up one by one, transported to a predetermined position and accumulated to prepare them. Therefore, there is a problem in that work efficiency is extremely low and a lot of work is required because the work must be carried by being loaded on a carrier vehicle or the like.

Therefore, the present invention can continuously carry out a series of harvesting operations from digging white onion (root deep-rooted onion) to transporting and preparing it, and storing the prepared onions. It is an object of the present invention to provide a self-propelled onion harvester that can dramatically improve the work efficiency in the harvesting work of white onions and also dramatically reduce the work labor.

[0005]

In order to achieve this object, a green onion harvester according to the present invention has a self-propelled airframe with a digging blade at the tip from the front of the lower part of the body to the rear of the body through the upper center of the body. Having, arranging a digging conveyor device provided with an endless bar conveyor continuously to this digging blade, located above this digging conveyor device, green onions digged from the field in the left-right direction Providing a pair of left and right guides to prevent falling down, behind the digging conveyor device, provided with a workbench for preparing green onions conveyed by the digging conveyor device, further behind this workbench, is prepared. It is characterized by having a stock stand to store onions.

[0006]

By adopting such means, in the green onion harvesting machine of the present invention, as the self-propelled machine travels, the digging blades are opposed to the white onion ridges in the lengthwise direction and the white Dig green onions with ridges. Then, the white onion dug up by the digging blade is conveyed diagonally upward and rearward of the machine body by the bar conveyor together with the ridge covering the root portion, and the white onion ridge row is paired with left and right guides during the conveyance. This prevents the horizontal tilt. In the process of this conveyance, the ridge covering the root part of the white onion is sifted from between the bar conveyors.

[0007] The row of white onions, from which the ridges at the bottom of the root have been almost sieved off, reach a work table, where they are prepared by a worker.
The prepared white onions are bundled and placed on a stock table.
When they are loaded and reach a predetermined amount, the harvesting work is interrupted and they are reloaded into a transport vehicle or the like.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be specifically described below with reference to the accompanying drawings. In FIG. 1 and FIG. 2, reference numeral 1 is a green onion harvesting machine, and a machine body 2 is equipped with crawlers 3 and 3 which form a pair of right and left and are capable of spin (super-trust) turning. An engine 4 is mounted on one side of the machine body 2 slightly front side, and a hydraulic device (not shown) driven by the engine 4 is provided in the vicinity of the engine 4. Between crawlers 3 and 3,
A transmission 5 is provided at a lower position near the front of the machine body 2. In addition, from the front lower part of the fuselage 2 between the crawlers 3 and 3 to the rear part of the fuselage through the upper part of the fuselage, the ridge-shaped white onion (root deep green onion) is dug, and it is conveyed backwards. A digging conveyor device 6 is provided so that the side thereof descends.

On the other side of the machine body 2 opposite to the engine 4, there are provided a control section 7, a control seat 8, a step 9 for the operator, and the like. The operator sitting on the control seat 8 also serves to prepare a green onion, which will be described later. On one side of the machine body 2 facing the control seat 8 behind the engine 4, a seat 10 for the preparation operator and a step 1 for the preparation operator are provided.
1 is provided. Further, in front of the seat 10 for the preparation operator, facing the clutch lever 13 for connecting / disconnecting the power to / from the bar conveyor 12 of the digging conveyor device 6 provided in the control unit 7, the bar conveyor is similarly arranged. A clutch lever 14 for connecting and disconnecting the power to and from 12 is provided.

The digging conveyor device 6 is supported by a pair of left and right side frames (frames) 15 and has a digging blade 16 at its tip.
The endless bar conveyor 12 is provided so as to be continuous with the digging blade 16. Further, the digging conveyor device 6 has a tip end side that is vertically rotatable about a rotation shaft (rotation fulcrum) 17 at an intermediate portion of the digging conveyor device 6.
Rotation is controlled by expansion and contraction of a hydraulic cylinder (not shown) provided between the five. A pair of left and right guides 18 located above the excavation conveyor device 6 for preventing the onions excavated from the field from falling in the left and right directions are provided in the left and right side frames 1.
Are supported and provided substantially in parallel by a plurality of support stays 19, 19 ... The tips of the pair of guides 18 are spread in a V shape so that the green onions excavated by the excavation blade 16 are introduced so as to be cheap, and the ends thereof project further rearward than the ends of the excavation conveyor device 6. .

Further, a work table 20 is provided behind the digging conveyor device 6 for preparing green onions conveyed by the digging conveyor device 6. The workbench 20 is used for preparing and binding the green onions transported by the digging conveyor device 6 by the side preparation operator seat 10, the operator sitting on the control seat 8 and the operator. It is desirable that it has a structure that allows soil to pass downward.
A stock table 21 for storing the onions that have been prepared and bound on the work table 20 is provided at the rear of the work table 20 so as to be detachable from the machine body 2.

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. It is possible to change the speed of the crawler 3 and 3 by continuously connecting and disconnecting the power transmission via the side clutch and the differential device to make the crawlers 3 and 3 change speed continuously and steplessly, and also possible to make a spin turn (super-field turn). I have to. The transmission power is transmitted from the transmission 5 to the bar conveyor 12 of the digging conveyor device 6, and the moving speed of the conveyor 12 can be continuously and steplessly adjusted. By combining with the stepless or stepped running of No. 3, the mining work speed can be freely set.

The left and right side frames 15 of the digging conveyor device 6,
A pair of left and right wheel support arms 2 from 15 toward the front
2 and 22 are projected, and the wheel support arms 22 and 2 are
A pair of wheels 23, 23 rollingly contacting both inclined shoulders of the white onion ridge to be harvested are opposed to and pivotally supported at the tip of 2.
These wheels 23, 23 serve as a ridge-following device that follows the movement of the machine body along the lengthwise direction of the white onion ridges to be harvested, and can be adjusted vertically with respect to the digging conveyor device 6 It is supported for movement adjustment. Further, the pair of wheels 23, 23 have a camber angle, rotate in contact with both inclined shoulders of the white onion ridge to be harvested, and steer and move the machine body following the white onion ridge to be harvested. I am trying.

Next, the operation of the green onion harvesting machine 1 of the embodiment constructed as described above will be described. Green onion harvester 1
When the onions are harvested from the field, the wheels 23,2
3 is rolled on both inclined shoulders of the white onion ridge to be harvested, the digging blade 16 of the digging conveyor device 6 is vertically moved by a hydraulic cylinder to adjust the digging depth, and the white is produced by advancing the machine body. The green onions are dug up from below with the digging soil by the digging blade 16, and the barium 12 conveys the green onions together with the soil and lifts them diagonally above the machine body. During this conveyance, the white onion row is prevented from falling in the left-right direction by the pair of left and right guides 18, 18.

Further, from the white onions conveyed by the bar conveyor 12 together with the soil, the ridges covering the roots of the white onions are sieved from between the bar conveyors 12. And
Soil was dropped and white onions were sequentially discharged from the end of the bar conveyor 12 onto the workbench 20, and the white onions discharged onto the workbench 20 sat on the preparation worker's seat 10 and the control seat 8. Prepared by operators and operators, bundled and placed and loaded on 21 stocks. When the white onion bundles on the 21 stocks reach a predetermined amount, the harvesting work is temporarily interrupted, the harvested vegetables are transferred to a transport vehicle or the like, and then unloaded.

When a white onion is wrapped around the bar conveyor 12 or an operator's hand is caught, the control seat 8
Alternatively, either of the clutch levers 13 and 14 is operated from the side of the preparation operator's seat 10 to stop the drive of the bar conveyor 12. The clutch levers 13 and 14 may be traveling clutch levers.

Here, the green onion harvester 1 comprises a crawler 3,
3 between the lower part of the machine body, the upper part of the machine body and the upper part of the machine body to the rear part of the machine body, the digging conveyor device 6 is provided. The digging conveyor device 6 is capable of continuously or stepwise changing its moving speed. Since it can move up and down with respect to the machine body 2, by selecting an appropriate moving speed and digging depth according to the field condition and the crop condition, a highly accurate and efficient harvesting work can be performed.

Further, since the crawlers 3 and 3 travel at continuously variable speeds and travel, and also enable spin turning (supertrust turning), the machine body 2 can be stably held on a headland or the like. It is possible to spin to move to the next harvest ridge in one turn, and also to turn in either the left or right direction with good balance. 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 are provided wheels 23, 23 which follow the movement of the machine body along the lengthwise direction of the white onion ridges to be harvested, and the digging conveyor device 6 is vertically adjusted, In addition, since both wheels 23 are supported so that they can be adjusted to the left and right, both wheels 23 accurately follow the white onion ridges to be harvested to automatically steer the machine, and the digging conveyor device 6
Automatic excavation and transportation are carried out. Therefore, except for the aircraft steering operation at the ridge end of the white onion ridge to be harvested, the pilot
Most of the time can be spent preparing and bundling. Further, when the headland is turned at the end of the field, the front side of the excavation conveyor device 6 is rotated around the rotation shaft (rotation fulcrum) 17 by the hydraulic cylinder and lifted to move the crawlers 3, 3.
It can be turned with a small turning radius along with the spin turn of.

[0020]

As described above, in the scallion harvesting machine of the present invention, as the self-propelled machine travels, the digging blade opposes the ridges of the white onions in the lengthwise direction and is white. The green onions are dug up along with the ridges, and they are conveyed diagonally upward and rearward of the machine by a bar conveyor together with the ridges that cover the roots of the white onions. During the transportation, the row of white onion ridges is prevented from collapsing in the left-right direction by the pair of left and right guides, and in the course of the transportation, the ridges covering the roots of the white onions are sieved from between the bar conveyors. Be done.

The row of white onions, from which the ridges at the bottom of the root have been almost sifted from between the bar conveyors, are discharged to a workbench where they are prepared and bound by the operator. The prepared and tied white onions are placed and loaded on a stock table, and when a predetermined amount is reached, the harvesting operation is interrupted and the white onions are reloaded into a transport vehicle or the like. Therefore, according to the present invention, it is possible to continuously perform a series of harvesting operations from digging of white onions to preparation, bundling, and loading and transporting, thereby dramatically improving the work efficiency in the harvesting of white onions. The work effort can be dramatically reduced.

[Brief description of drawings]

FIG. 1 is a side view of a self-propelled leek harvester according to an embodiment of the present invention.

FIG. 2 is a plan view of the same.

[Explanation of symbols]

 1 Leek Harvester 2 Airframe 3 Crawler 4 Engine 5 Transmission 6 Digging Conveyor Device 7 Control Section 8 Control Seat 9 Operator's Step 10 Preparation Operator's Seat 11 Preparation Operator's Step 12 Endless Bar Conveyor 13, 14 Clutch Lever 15 Side Frame 16 Excavation Blade 17 Rotating Shaft (Rotation Support Point) 18 Guide 19 Support Stay 20 Working Platform 21 Stock Platform 22 Support Arm 23 Wheel

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Toshiyuki Obuchi 684 Nakamata, Okayama City, Okayama Kobashi Kogyo Co., Ltd. Within the Technical Research Promotion Organization (72) Inventor Sadao Omori 1-40, Nisshin-cho, Omiya City, Saitama Prefecture 2 Within the Specific Industrial Technology Research Promotion Organization for Biological Systems

Claims (1)

[Claims] 1. A digging conveyor comprising a self-propelled aircraft having a digging blade at its tip from the front of the fuselage to the rear of the fuselage through the upper portion of the fuselage center, and an endless bar conveyor is provided continuously to the digging blade. A device is provided, which is located above the digging conveyor device, and is provided with a pair of left and right guides that prevent the onions excavated from the field from falling in the left-right direction, and behind the digging conveyor device. A work table for preparing the green onions conveyed by the digging conveyor device, and a stock table for storing the prepared green onions further behind the work table. Leek harvester.