JP2023019360A - root crop harvester - Google Patents

Abstract

To provide a root crop harvester which prevents a machine body from contacting a storage member such as a flexible container bag that has been put down on a farm field in order to solve such a problem that, since a flexible container bag fully filled with root crops is put down on a farm field toward a machine body rear side, the flexible container bag that has been put down on the farm field is right on the side of the traveling machine body when harvesting crops in an adjacent row, the flexible container bag is in contact with the machine body, the flexible container bag is torn and the root crops are scattered in the farm field and proper harvesting work cannot be performed.SOLUTION: A root crop harvester comprises: a placement table 26 in which a placement part 41 is rotated to a horizontal attitude (i) in which a storage member 22 for storing root crops conveyed from a harvesting part C is placed in a storage part E and a standing attitude (iii) in which a lower side of the storage member 22 is opened so as to put down the storage member 22 on a farm field on the lower side; and a movement device 24 which suspends and puts down the storage member 22 on the farm field on an outer side in a left-right direction of the machine body and on the farm field where the lower side of the storage member 22 is opened with the rotation of the placement part 41 of the placement table 26 to the standing attitude (iii).SELECTED DRAWING: Figure 2

Description

TECHNICAL FIELD The present invention relates to a root vegetable harvester that collects crops from a field and stores them in a storage member such as a flexible container bag.

2. Description of the Related Art Conventionally, there is a root vegetable harvester that draws and conveys root vegetables from a field with a drawing and conveying device, and stores the root vegetables in a flexible container bag provided at the conveying end of a sorting and conveying device. (See Patent Document 1, for example).

JP 2011-115069 A

However, since the flexible container bag full of root crops is lowered into the field toward the rear of the machine, when the machine is turned to harvest adjacent rows of crops, the unloaded flexible container bag advances to the immediate side of the machine. If the flexible container bag is tilted or the machine body slightly meanders, the flexible container bag will come into contact with the machine body and the flexible container bag will break and the root crops will be scattered in the field, resulting in a situation where proper harvesting cannot be performed. there is a risk of

SUMMARY OF THE INVENTION It is an object of the present invention to provide a root vegetable harvester that avoids the machine body from coming into contact with a housing member such as a flexible container bag unloaded in a field.

According to the first aspect of the invention, there is provided a root vegetable harvester equipped with a traveling section A for traveling the machine body, a control section B, a harvesting section C for harvesting root vegetables from a field, and a storage section E for storing the harvested root vegetables, A horizontal position (a) in which the containing member 22 is placed so as to contain the root vegetables conveyed from the harvesting unit C in the containing unit E, and a downward position of the containing member 22 so as to lower the containing member 22 to the farm field below. The mounting table 26 on which the mounting portion 41 rotates is provided in the opened upright posture (C), and the storage member 22 is hung so that the agricultural field on the left-right direction outer side of the machine body and the mounting portion 41 of the mounting table 26 are in the upright posture (C). This is a root vegetable harvester provided with a moving device 24 which rotates upwardly and unloads a storage member 22 to an open field below.

According to the first aspect of the invention, the horizontal position (a) in which the containing member 22 is placed so as to contain the root vegetables conveyed from the harvesting unit C in the containing unit E and the containing member 22 are placed in the field below. A mounting table 26 on which the mounting portion 41 rotates is provided in a standing position (c) in which the lower part of the housing member 22 is opened as if it is lowered, and the housing member 22 is hung to allow the mounting table 26 and the agricultural field on the left-right direction outer side of the machine body to be placed. Since the moving device 24 is provided so that the placing portion 41 rotates to the upright posture (C) and lowers the storage member 22 to the field where the bottom of the accommodating member 22 is open, the placing portion 41 is set to the horizontal posture (A) of the placing table 26. The storage member 22 placed on the ground can be lifted by the moving device 24 and lowered into the field at a position on the outside in the left-right direction of the machine body. Also, contact of the containing member 22 with the body can be avoided, and good and appropriate harvesting work can be performed.

In addition, in the case where there is an obstacle such as a ridge or a wall on the side of the ridge at the edge of the field, and the storage member 22 cannot be lowered to the side of the machine, the storage member 22 is suspended by the moving device 24 and placed on the mounting table 26. By rotating the placing portion 41 to the upright posture (c) in which the lower part of the containing member 22 is opened, the containing member 22 can be lowered into the field with the lower part opened.

According to the second aspect of the invention, the base portion of the mounting table 26 is rotatably supported by the body frame 1, and can be arranged in a horizontal position (a) in which it is deployed to the right outer side of the machine body and in a stowed position (b) in which it is erected on the inside of the machine body. 2. The root vegetable harvester according to claim 1, comprising a switchable frame 40 and a mounting portion 41 provided on the frame 40 so as to be rotatable about a rotating shaft 40b in the front-rear direction.

The invention according to claim 3 is the root vegetable harvester according to claim 1 or claim 2, wherein the placing portion 41 rotated to the standing position (c) functions as an outrigger.

According to the fourth aspect of the present invention, the placing portion 41 in the horizontal posture (A) for placing the housing member 22 is positioned lower than the frame 40 in the horizontal posture (A) that is deployed to the right outer side of the fuselage. The root vegetable harvesting machine according to any one of claims 1 to 3, provided in .

The invention according to claim 5 is the root vegetable harvesting machine according to any one of claims 1 to 4, wherein the rotating shaft 40b of the mounting part 41 is arranged to be biased toward the machine body side from the center in the left-right direction. be.

1 is a plan view of a carrot harvester according to one embodiment of the present invention; FIG. It is a rear view for explaining the operation of the carrot harvester of one embodiment of the present invention. 1 is a side view of a carrot harvester according to one embodiment of the present invention; FIG. FIG. 5 is a hydraulic circuit diagram showing another embodiment of the present invention;

A carrot harvester, which is a type of root vegetable harvester, will be described as an embodiment of the present invention. In the following, front and rear and left and right are referred to with reference to the forward direction of the airframe.

<Overall composition>
The carrot harvester includes a traveling section A for traveling the machine body, a control section B for the operator to board, a harvesting section C for extracting carrots from the field on one left and right side of the machine body and conveying them to the rear upper side of the machine body, and the harvesting section C. The stems and leaves are cut while being transported to the rear of the aircraft at the foliage cutting section, the carrots falling from the foliage cutting section are received, and the stems and leaves remaining on the carrot are processed at the residual leaf processing section, and the residual leaves are processed. A sorting/conveying part D that takes over the carrots from the processing part, conveys the carrots from one left and right side of the machine body to the other left and right sides, and sorts the carrots being conveyed by an assistant operator, and the carrots discharged from the sorting and conveying part D. It is composed of an accommodating portion E in which an accommodating member is arranged.

<Running part A>
The left and right drive sprockets 2, 2 on the front side of the machine body, the left and right driven wheels 3, 3 on the rear side of the machine body, and the left and right drive sprockets 2, 2 and the left and right driven wheels 3, 3 are mounted below the body frame 1. Left and right crawlers 6L and 6R are constructed by winding left and right belts 5 and 5 around a plurality of rollers 4. - 特許庁Then, the left and right drive sprockets 2, 2 of the left and right crawlers 6L, 6R are attached to the left and right drive shafts extending to the left and right sides from the transmission case to which the power of the engine is transmitted. , 6R to the body frame 1.

<Manipulator B>
An operation section frame 7 is attached to the right upper portion of the body frame 1, an operation seat 8 is attached to the operation section frame 7, and an operation panel 9 is attached to the front side of the aircraft body. On the control panel 9, a shift operation lever 10 for switching forward/backward movement and traveling speed of the machine body, and a lifting/lowering operation lever 11 for turning the machine body left/right and operating the working height of the harvesting section C are attached, and a cross direction operation to be described later is attached. A lever 27 is provided.

Also, a radiator cover 12 for protecting the radiator (not shown) for cooling the engine and taking in cooling air is detachably attached to the right and left sides of the control section frame 7 (right side of the fuselage). A control section B is configured.

With the above configuration, by providing a single control member such as the shift control lever 10 and the elevation control lever 11, which can perform a plurality of operations, the control of the airframe is facilitated, and the operator's work can be reduced. .

<Harvesting Department C>
Left and right driven pulleys are rotatably mounted on the front side of the machine body of the left and right pull-out frames 13, 13, and left and right driving pulleys are mounted on the rear side of the machine body. The left and right pinching and conveying belts to be conveyed are wrapped around, and the left and right pinching and conveying belts are tensioned by a plurality of tension rollers, and the inner surfaces of the left and right pinching and conveying belts are pressed against each other to form a pulling-out conveying path (pulling-out conveying path) R for carrots. Configure. A rotating frame is attached to the upper part of the body frame 1 so as to be rotatable in the vertical direction with the left and right horizontal shafts as the fulcrum, and a transmission for transmitting the driving force to the left and right driving pulleys is provided at the rear end of the rotating frame. A case is attached so as to be vertically rotatable around a pivot point. Further, the machine body frame 1 and the rotating frame are connected by an elevating cylinder, and the elevating cylinder is attached so as to be operable by the control section B, thereby constituting the pull-out transport device 17 .

In addition, a vertical lifting device 18 for lifting the stems and leaves of carrots in front of the pull-out conveying device 17, a horizontal lifting device 19 for scooping up the stems and leaves lifted by the vertical lifting device 18, and the horizontal lifting device 19. A dividing rod 20 provided in the front part of the plant, a rotatable gauge wheel that prevents the pull-out conveying device 17 from going down too much, and a lateral vibration that reciprocates by the driving force of the engine and loosens the left and right soil of the carrot in the soil. Soiler S is provided.

A harvesting section C is constructed by installing a tail cutting device for cutting the roots of carrots being conveyed by the drawing and conveying device 17 below the drawing and conveying passage R.

With the above configuration, by providing the horizontal lifting device 19 having the dividing rod 20 on the front side of the machine body and the vertical lifting device 18, the harvesting work can be performed while raking up the stems and leaves of the carrot lodged in the field. Visibility is improved, making it easier to adjust the pulling position.

In addition, since the carrots can be prevented from being damaged by contact with the right-and-left vibrating soyler S or the like, the commercial value of the carrots is improved.

Then, the body frame 1 and a rotating frame that can be rotated in the vertical direction with the left and right horizontal shafts as the rotation fulcrum are connected by an elevating cylinder, and the elevating cylinder is expanded and contracted by operating the elevating operation lever 11 of the control section B. With this configuration, the vertical height of the entire harvesting section C can be adjusted by operating the lifting operation lever 11, so that the position of the starting end of the drawing-out conveying of the harvesting section C can be adjusted in the vertical direction and vegetation can be grown in the field. The position of the starting end of the carrots to be pulled out can be adjusted according to the appropriate height of the carrots to be pulled out, and the carrots can be prevented from being left unpulled, thereby improving work efficiency.

In addition, if the harvesting section C is raised during turning, the lower end of the harvesting section C is less likely to come into contact with the field, so that the turning operation is performed smoothly and work efficiency is improved.

<Sorting Conveyor D>
The sorting and conveying device 21 for the sorting work of the sorting and conveying unit D moves from the lower rear part of the pull-out conveying device 17 of the harvesting unit C toward the accommodating unit E with the flexible container bag 22, which is a accommodating member for accommodating carrots, in the lateral direction of the machine body. It is composed of a chain conveyor provided with crosspieces arranged at regular intervals and rotated by the driving force from the engine. In addition, the stem and leaf part of the carrot conveyed with the stem and leaf part pinched by the pulling and conveying device 17 is cut at the stem and leaf cutting part at the lower end of the stem and leaf part (a little above the head of the carrot), and the carrot falls downward. The falling carrots are received by the residual leaf processing section, and the stems and leaves remaining on the carrots are processed and transported to the sorting and transporting section D. Then, the sorting and conveying device 21 of the sorting and conveying section D conveys the carrot from the left end to the right side (storage section E).

In addition, the sorting and conveying device 21 includes a horizontal conveyor 21a provided horizontally on the right side of the machine body from below the rear portion of the pull-out conveying device 17 of the harvesting section C, and the harvested crops are taken over from the right end of the horizontal conveying conveyor 21a to the storage section E. It is composed of a movable conveyer 21b that conveys obliquely upward and to the right.

The left end of the movable conveyor 21b, which takes over the harvested crops from the right end of the horizontal conveyor 21a, is rotatably supported by a pivot shaft. It can be moved up and down to change the angle of inclination.

An auxiliary working seat 23 is provided on the rear side of the movable conveying conveyor 21b, and the carrots sent by the movable conveying conveyor 21b cannot be sold by a worker sitting on the auxiliary working seat 23. Things (small carrots and odd-shaped carrots) are taken out, and only carrots with proper commercial value are sent to the container E.

An operator seated on the auxiliary work seat 23 moves the right end side of the movable conveyer 21b up and down by extending and contracting the vertical movement electric cylinder 21c with a foot-operated up switch and down switch.

<Accommodation part E>
The accommodation section E is arranged on the right side of the sorting and conveying device 21, and includes a hanging hanger 25 which moves up and down and left and right by an operating arm 24 as a moving device provided at the right end of the movable conveying conveyor 21b of the sorting and conveying device 21. , and a mounting table 26 for mounting the flexible container bag 22 suspended on the suspension hanger 25 .

The movable conveyer 21b is provided obliquely upward from the left end base toward the right end upper portion. That is, the carrots are rotated obliquely upward by driving force from the engine and discharged downward from the upper end. The base of the movable transfer conveyor 21b is rotatably provided on a pivot shaft, and the tip of the piston of the electric cylinder 21c for vertical movement whose base is pivotally supported on the body frame 1 is connected to the middle part. ing.

In other words, the movable conveying conveyor 21b rotates about the pivot shaft by extending the vertical movement electric cylinder 21c while the operator seated on the auxiliary work seat 23 is stepping on the lift switch. While the descent switch is being stepped on, the electric cylinder 21c for vertical motion is contracted, rotated around the pivot shaft, and lowered. In addition, when the worker descends to the field and operates the cross direction control lever 27 provided on the right end of the control panel 9 to the right while facing the rear of the machine body, the movable conveying conveyor 21b is pivotally supported by extending the vertical movement electric cylinder 21c. It rotates around the axis to ascend, and when operated to the left, the electric cylinder 21c for vertical movement contracts and rotates around the pivot axis to descend.

The hanging hanger 25 is moved vertically and horizontally by an operating arm 24 provided at the right end of the movable conveyor 21b.

The actuating arm 24 has its base pivotally supported on the right end of the movable conveyer 21b so that it rotates counterclockwise when viewed from the rear, but stops rotating clockwise at a predetermined position, and its distal end extends above the right outer side of the fuselage. a base arm 24a extending toward the base arm 24a, a rotating arm 24b rotatably supported at the tip of the base arm 24a, and a rotating actuator disposed between the base arm 24a and the rotating arm 24b. It is composed of the rotating electric cylinder 24c as a.

The suspension hanger 25 is provided at the tip of the rotating arm 24b. The four hooks 25a of the hanging hanger 25 are hooked to the locking holes in the upper edge of the flexible container bag 22 above the mounting table 26 to support the flexible container bag 22 in a suspended manner.

A cross-direction control lever 27 is provided at the right end of the operation panel 9. When the operator descends into the field and operates the machine to the right while facing the rear of the machine, the electric cylinder 21c for vertical movement is extended to move the movable conveyer 21b. When it is operated to the left, the vertical motion electric cylinder 21c is contracted and the movable conveyor 21b is rotated around the pivot shaft to descend, and when it is operated to the rear of the machine body, the rotating electric motor When the cylinder 24c extends and the rotating arm 24b rotates around the pivot shaft and opens to the right outside, and is operated toward the front of the fuselage, the rotating electric cylinder 24c contracts and the rotating arm 24b rotates around the pivot shaft. Rotate and close to the inside of the left fuselage.

When the cross-direction operating lever 27 is operated, unless the movable conveyer 21b is at the highest position, even if the cross-direction operating lever 27 is operated to the rear of the machine body, the rotating electric cylinder 24c will not operate and the rotating arm 24b will be pivotally supported. It does not rotate around the axis and open outward to the right. That is, only when the movable transfer conveyor 21b is at the highest position, the cross-direction operation lever 27 is operated rearward of the machine body to operate the rotating electric cylinder 24c to rotate the rotating arm 24b around the pivot shaft. It can be opened outward to the right.

In addition, a load sensor 28 is provided on the mounting table 26, and only when the flexible container bag 22 suspended on the hanging hanger 25 is lifted and the bottom of the flexible container bag 22 is separated from the mounting table 26 (the load sensor 28 Only when the flexible container bag 22 is no longer detected), the cross direction operation lever 27 is operated to the rear of the machine body to operate the rotating electric cylinder 24c to rotate the rotating arm 24b around the pivot shaft and move to the right outer side. can be opened to

In addition, a photo sensor 29 is provided at the right outer end of the mounting table 26 to detect that there is an object above. , the flexible container bag 22 is not above the right outer end of the mounting table 26 (the flexible container bag 22 is placed If it is not detected that the pedestal 26 has moved to the right outer side of the right outer end, even if the cross-direction operation lever 27 is operated to the left to rotate the movable conveyer 21b around the pivot shaft to lower it. , the vertical movement electric cylinder 21c does not operate, and the movable conveyer 21b does not move downward. Therefore, when unloading the flexible container bag 22 hung on the hanging hanger 25 to the field, it is possible to avoid the flexible container bag 22 from accidentally contacting the right outer end of the mounting table 26.

A hook open/close switch 30 for opening and closing the four hooks 25 a of the hanging hanger 25 is provided at the upper end of the cross-direction operation lever 27 .

When the hook open/close switch 30 is pressed once, it activates the electromagnetic solenoid 31 provided at the rotation fulcrum of each hook 25a to close each hook 25a, and when pressed again, it activates the electromagnetic solenoid 31 to open each hook 25a. When opening each hook 25a, the electromagnetic solenoid 31 does not operate and each hook 25a does not open unless the hook opening/closing switch 30 is pressed for 0.5 seconds or more to prevent erroneous operation.

In addition, when a cord hook for locking the cord 22a of the flexible container bag 22 is provided at the upper end of the movable conveyer 21b, opening and closing of the cord hook is also performed by the hook open/close switch 30 in the same manner.

A red rotating light 33, which is an example of a warning light, is provided at the highest position of the operating arm 24, that is, at the top of the tip of the base arm 24a.

The red rotating light 33 detects that the load sensor 28 provided on the mounting table 26 has lifted the flexible container bag 22 suspended on the hanging hanger 25 and the bottom of the flexible container bag 22 has separated from the mounting table 26, and When the rotating arm 24b pivotally supported at the tip of the base arm 24a of the operating arm 24 starts to open to the right outside by the rotating electric cylinder 24c, the operating arm 24 operates to move the flexible container bag 22 to the field. Notify others that you are unloading. A potentiometer 34 is provided at the base of the rotating arm 24b pivotally supported at the tip of the base arm 24a, and detects when the rotating arm 24b begins to open outward to the right side by the rotating electric cylinder 24c.

Further, it is safer if the horn is sounded when the red revolving light 33 turns on. Note that the sound of the horn is an intermittent sound that is different from a reverse buzzer sound and a warning sound that the operator sounds.

Therefore, when the actuating arm 24 is actuated to unload the flexible container bag 22 on the field, the red rotating light 33 is turned on at the highest position of the actuating arm 24, so that even in the evening it can be conspicuous and accurately notified to the surroundings.

Here, the configuration of the mounting table 26 will be described in detail.

The mounting table 26 is composed of a frame 40 having a U-shape in plan view and having front, rear, and inner sides, and a flat plate 41 as a mounting portion provided rotatably on the frame 40 . be.

The inner side of the frame 40 is rotatably supported by the body frame 1 with a pivot shaft extending in the front-rear direction. Then, the frame 40 is in a horizontal position (a) developed to the right outer side of the fuselage by a frame frame electric cylinder operated by a mounting table operation switch SW provided on the control panel 9, and a stowed posture in which it is erected inside the fuselage. (b).

A rotating shaft 40b extending in the front-rear direction is pivotally supported by support members 40a, 40a extending downward, the bases of which are welded to the front and rear ends of the frame 40, and a flat plate 41 is fixed to the rotating shaft 40b. It is Then, the rotating shaft 40b is rotated by the flat plate electric motor 42 equipped with a potentiometer fixed to the rear surface of the support member 40a on the rear side of the frame 40, and the flat plate 41 rotates around the rotating shaft 40b. Note that the rotating shaft 40 b also functions as a reinforcing member for the flat plate 41 .

That is, the electric motor 42 for the flat plate is operated by the mounting table operation switch SW provided on the control panel 9, and the flat plate 41 is in the state of horizontal posture (A) in which the frame 40 is deployed to the right outer side of the machine body. It is switched to the same horizontal posture (a) as 40 and the upright posture (c) perpendicular to the frame 40 .

When the flat plate 41 is in the same horizontal posture (a) as the frame 40 , the top surface of the flat plate 41 supports the flexible container bag 22 suspended by the suspension hanger 25 .

In addition, since the frame 40 is made of a round pipe and is located higher than the flat plate 41, it restricts the back and forth movement of the flexible container bag 22 placed on the flat plate 41, and the flexible container bag 22 is placed in a stable state. can keep. In addition, since the frame 40 is composed of round pipes with a smooth surface, the flexible container bag 22 is prevented from being damaged.

When the flat plate 41 is in the standing posture (c) in which it goes straight to the frame 40, the bottom of the flexible container bag 22 suspended on the hanging hanger 25 is opened, and if the hanging hanger 25 is lowered, the flexible container bag 22 can be moved left and right and It can be lowered to the field as it is without moving back and forth.

Then, when the hanging hanger 25 is lowered and the flexible container bag 22 is lowered into the field as it is without moving left and right and back and forth, the flat plate 41 in the standing posture (C) serves as a guide surface to prevent the flexible container bag 22 from swinging toward the machine side. fulfill the function of

In addition, the lower end of the flat plate 41 in the standing posture (C) is located slightly above the field, and the machine body moves due to the movement of the center of gravity when the actuating arm 24 is operated to lower the flexible container bag 22 to the field on the right outer side of the machine. When the machine is tilted to the right, the lower end of the flat plate 41 in the upright posture (C) touches the field and functions as an outrigger to prevent the machine from overturning.

Furthermore, when the frame 40 is switched to the storage posture (b) in which the frame 40 is erected inside the machine body by the frame electric cylinder operated by the mounting table operation switch SW provided on the control panel 9, the mounting table operation switch SW is turned on. When the electric motor 42 for the flat plate is actuated and further rotated to a position along the frame 40 to enter the retracted standing state (D), the rotating shaft 40b for rotating the flat plate 41 is positioned further from the center of the horizontal plane of the flat plate 41 into the machine body. Since the flat plate 41 is arranged to be biased to the side, the upward protrusion height of the flat plate 41 is low, and even if the movable conveyer 21b is moved downward, it does not interfere, and the hanging hanger 25 is lowered to move the flexible container bag 22 left and right. And the work of unloading it to the field as it is without moving back and forth can be performed without any trouble.

In addition, the flexible container bag 22 can be hung on the hanging hanger 25 to perform the harvesting work with the frame 40 in the storage posture (b) in which the frame 40 is erected inside the fuselage and the flat plate 41 in the storage standing state (d). The flat plate 41 in the stored upright state (d) functions as a guide surface that prevents the flexible container bag 22 from swinging toward the machine body.

<Carrot harvesting>
First, by operating the mounting table operation switch SW provided on the control panel 9, the frame frame 40 is set in a horizontal posture (a) in which the frame frame 40 is deployed to the right outer side of the machine body by the frame frame electric cylinder, and the flat plate 41 as the mounting portion is set. is set to the same horizontal posture (a) as the frame 40 by the electric motor 42 for flat plate, and the bottom of the flexible container bag 22 suspended by the suspension hanger 25 is received.

Then, the cross-direction control lever 27 is operated to move the movable conveyer 21b to the lowest position with the rotating arm 24b closed toward the inside of the left machine body.

Each hook 25a of the hanging hanger 25 is hooked to the locking hole at the upper edge of the flexible container bag 22 to hang the flexible container bag 22, and the hook opening/closing switch 30 of the cross direction control lever 27 is pressed to close each hook 25a. Let the bottom of the bag 22 be received by the mounting table 26 .

Then, the operator seated on the operator's seat 8 advances the carrot harvester, aligns the front end of the withdrawal conveying route R of the withdrawal conveying device 17 of the harvesting section C with the carrot row in the field, and then operates the lifting operation lever 11. The harvesting section C is lowered, the digging clutch is turned on, and each section is driven to move forward. Then, the stems and leaves of the carrot are scraped up by the dividing rod 20, the vertical lifting device 18 and the horizontal lifting device 19, and the carrot stems and leaves are nipped in the drawing-out conveying route R of the drawing-out conveying device 17, and the left-right vibrating soiler S picks up the stems and leaves of the carrot. The soil on the side and bottom of the carrot is loosened, and the carrot is pinched and pulled out by the pull-out conveying device 17 and conveyed rearward and upward.

The stems and leaves of the carrots conveyed by the pull-out conveying device 17 are cut at the stems and leaves cutting section at the lower end of the stems and leaves (slightly above the head of the carrot), and the carrots fall downward. The falling carrots are received by the residual leaf processing section, and the stems and leaves remaining on the carrots are processed and conveyed to the sorting and conveying section D. Then, the carrots are conveyed from the left end to the right side (receiving section E) by the movable conveying conveyor 21b of the sorting and conveying section D.

Then, an operator seated on the auxiliary work seat 23 on the rear side of the movable conveyer 21b takes out non-productable carrots (small carrots and odd-shaped carrots) from among the carrots sent by the movable conveyer 21b. Only carrots with commercial value are sent to the container E.

The carrots sent to the right end by the movable conveyer 21b are dropped and stored in the flexible container bag 22 suspended from each hook 25a of the hanging hanger 25 at the right end of the movable conveyer 21b.

Then, as the amount of carrots stored in the flexible container bag 22 increases, the operator seated on the auxiliary work seat 23 depresses the lift switch to extend the vertical movement electric cylinder 21c and pivot the movable conveyer 21b. Rotate around the support shaft to raise it sequentially.

Then, when the movable conveyer 21b is rotated around the pivot shaft and lifted until the flexible container bag 22 is filled with carrots, the operator stops driving the body and stops the vehicle.

An operator seated on the auxiliary work seat 23 leaves the auxiliary work seat 23, gets off the field, stands near the right end of the operation panel 9, and operates the cross direction control lever 27 while facing the rear of the machine body.

First, the cross-direction control lever 27 is operated to the right to extend the vertical movement electric cylinder 21c to raise the movable conveyor 21b to the highest position, thereby lifting the flexible container bag 22 above the mounting table 26.

Then, the cross direction control lever 27 is operated to the rear of the machine body to extend the rotating electric cylinder 24c to rotate the rotating arm 24b around the pivot shaft to open to the right outer side, and the flexible container bag 22 is placed. It is moved to the right outer side of the mounting table 26. - 特許庁

Then, by operating the cross-direction control lever 27 to the left, the electric cylinder 21c for vertical movement is contracted to lower the movable conveyor 21b to the lowest position, thereby lowering the flexible container bag 22 onto the field.

Then, push the hook open/close switch 30 of the cross direction control lever 27 to open each hook 25 a, remove each hook 25 a of the hanging hanger 25 from the locking hole at the upper end edge of the flexible container bag 22, and move the cross direction control lever 27 The movable conveyer 21b is returned to the lowest position in a state in which the first rotating arm 24b is closed inside the left body by operation, and the upper end edge of the empty flexible container bag 22 is engaged with each hook 25a of the hanging hanger 25. After hanging the flexible container bag 22 by hooking each stop hole and putting the bottom of the flexible container bag 22 on the mounting table 26, the worker sits on the auxiliary work seat 23. - 特許庁Then, each part is driven to advance the machine body and restart the harvesting work.

Therefore, the suspension hanger 25 is moved up and down and left and right by the operation arm 24 provided at the right end of the movable conveyer 21b. 22 can be lifted above the mounting table 26 by the operating arm 24 and lowered to the field at the position on the right side of the mounting table 26. Also, contact of the flexible container bag 22 with the body can be avoided, and good and appropriate harvesting work can be performed.

At this time, by operating the mounting table operation switch SW, the flat plate 41 as the mounting portion is switched to the standing posture (C) in which the flat plate 41 is moved straight to the frame 40 by the electric motor 42 for the flat plate. The lower end of the flat plate 41 is slightly above the field, and when the machine body tilts to the right due to the movement of the center of gravity when the actuating arm 24 is operated to lower the flexible container bag 22 to the field on the right side of the machine body, the standing posture ( The lower end of the flat plate 41 of c) touches the field and functions as an outrigger to prevent the machine from overturning.

If the flexible container bag 22 cannot be lowered to the side of the machine due to obstacles such as ridges and walls on the side of the ridge at the edge of the field, the cross-direction operation lever 27 is operated to the right to move the electric cylinder 21c for vertical movement. is extended to raise the movable conveyor 21b to the highest position, and the flexible container bag 22 is lifted above the mounting table 26.

Then, by operating the mounting table operation switch SW, the flat plate 41 as the mounting portion is switched to the upright posture (c) in which the flat plate 41 as the mounting portion goes straight to the frame 40 by the electric motor 42 for the flat plate, and is hung on the hanging hanger 25 . The bottom of the flexible container bag 22 is opened.

Then, by operating the cross-direction control lever 27 to the left, the electric cylinder 21c for vertical movement is contracted to lower the movable conveyor 21b to the lowest position, thereby lowering the flexible container bag 22 onto the field.

Then, the hook opening/closing switch 30 of the cross-direction control lever 27 is pushed to open each hook 25a, and each hook 25a of the suspension hanger 25 is removed from the locking hole at the upper end edge of the flexible container bag 22.

Therefore, when the flexible container bag 22 cannot be lowered to the side of the machine due to obstacles such as ridges and walls on the side of the ridges at the edge of the field, the flat plate 41 as the placing portion is lowered by operating the placing table operation switch SW. By switching to the standing posture (c) that goes straight to the frame 40 with the flat plate electric motor 42 and opening the bottom of the flexible container bag 22 suspended on the hanging hanger 25, the flexible container bag 22 is directly placed in the field. can be taken down.

In addition, when the hanging hanger 25 is lowered and the flexible container bag 22 is unloaded to the field as it is, the flat plate 41 in the standing posture (c) functions as a guide surface to prevent the flexible container bag 22 from swinging toward the machine side.

On the other hand, when the operating arm 24 is operated to unload the flexible container bag 22 on the field, the red rotating light 33 is rotated and lit at the highest position of the operating arm 24, so it is conspicuous even in the evening and can be accurately notified to the surroundings, which is safe. be.

<Other embodiments>

(1) In the first embodiment, by operating the mounting table operation switch SW, the frame electric cylinder is operated to change the attitude of the frame 40, and the flat plate electric motor 42 is operated to change the attitude of the flat plate 41. However, a configuration may also be adopted in which an operator manually changes the attitudes of the frame 40 and the flat plate 41 and fixes the frame 40 and the flat plate 41 at each attitude position with a lock pin.

At this time, the flat plate 41 is arranged so that the rotation shaft 40b is biased toward the airframe side from the left-right center, so that the portion of the flat plate 41 on the inside of the rotation shaft 40b is shifted to the outside of the rotation shaft 40b. is heavier than the portion of (1) to balance the rotation around the rotary shaft 40b, and a torque spring is provided on the rotary shaft 40b so that the flat plate 41 returns to the horizontal state when it rotates freely around the rotary shaft 40b. , the operability is good. In addition, if a torque damper is provided so as to slowly return to the horizontal position, the handleability is further improved.

(2) In the first embodiment, an example of using the rotating electric cylinder 24c as a rotating actuator for operating the rotating arm 24b of the operating arm 24 was shown, but the flexible container bag 22 is suspended and moved to the outer side of the aircraft body. Since a large amount of power is required for the rotation, the harvesting work can be performed with better workability by using the rotating hydraulic cylinder 24c' in place of the rotating electric cylinder 24c.

FIG. 4 shows a hydraulic circuit diagram when using the hydraulic cylinder 24c' for rotation.

That is, in addition to the turning hydraulic cylinder 24c', the vehicle body has a hydraulic cylinder 100 for horizontal movement of the vehicle body for vertically moving either one of the left and right crawlers 6L and 6R to keep the horizontal horizontality of the vehicle body, and a carrot digging depth. , the lifting cylinder 101 for vertically moving the front part of the drawing and conveying device 17 by operating the lifting operation lever 11 back and forth, and the left crawler 6L (or the right crawler) tilted by the left and right tilting operation of the lifting operation lever 11 6R), left and right side clutch operating hydraulic cylinders 102, and a hydrostatic continuously variable transmission (HST) 103 disposed between the engine and the transmission case.

In the hydraulic circuit, pressure oil is supplied from a hydraulic tank 104 to a hydraulic pump 105 to the hydraulic cylinder 100 for leveling the vehicle body and the lifting cylinder 101. The flow is divided by a flow dividing valve 106 into an oil passage to a continuously variable transmission (HST) 103 .

The rotating hydraulic cylinder 24c' is arranged on the upstream side of the left and right side clutch operating hydraulic cylinders 102 and the hydrostatic continuously variable transmission (HST) 103 in the oil passage.

By actuating the hydraulic cylinder 24c' for rotation, the rotating arm 24b is rotated around the pivot shaft and opened to the right outer side, and the flexible container bag 22 is moved to the right outer side of the mounting table 26 to remove the flexible container bag 22. Since the work of unloading into the field is performed with the machine stopped as described above, the left and right side clutch operating hydraulic cylinders 102 and the hydrostatic continuously variable transmission (HST ) 103 does not require hydraulic pressure. Therefore, all the hydraulic pressure diverted by the flow dividing valve 106 can be used for the hydraulic cylinder 24c' for rotation, and the hydraulic cylinder 24c' for rotation operates satisfactorily to unload the flexible container bag 22 to the outside of the aircraft body. can do it properly.

In addition, since the turning hydraulic cylinder 24c' is not operated while the machine is traveling, by using the all-port open solenoid valve 107 as the operation valve of the turning hydraulic cylinder 24c', the right and left side can be operated while the machine is traveling. The clutch actuation hydraulic cylinder 102 and the hydrostatic continuously variable transmission (HST) 103 operate satisfactorily so that the vehicle can travel properly.

Then, if the solenoid valve 107 of the rotating hydraulic cylinder 24c' is controlled to operate only when the shift operation lever 10 is in the neutral position, the operation of lowering the flexible container bag 22 to the outside of the machine body can be performed appropriately.

Also, when the elevation control lever 11 is tilted left and right and the left and right side clutch operating hydraulic cylinders 102 are operating, it is safe to control the solenoid valve 107 of the turning hydraulic cylinder 24c' so that it does not operate.

If the oil passages on the entry side and the exit side of the hydraulic cylinder 24c' for rotation to the solenoid valve 107 are connected by the safety relief 108, the solenoid valve 107 of the hydraulic cylinder 24c' for rotation will not operate due to foreign matter. However, pressure oil is supplied to the left and right side clutch actuating hydraulic cylinders 102 and the hydrostatic continuously variable transmission (HST) 103 of the running system, so safety is ensured.

1 body frame 22 accommodation member (flexible container bag)
24 moving device (actuating arm)
26 mounting table 40 frame 40b rotating shaft 41 mounting portion (flat plate)
A Running section B Manipulating section C Harvesting section E Storage section

(b) Horizontal posture

(b) Storage position

(c) Standing posture

Claims (5)

A root vegetable harvester equipped with a traveling part (A) for traveling the body, a control part (B), a harvesting part (C) for harvesting root vegetables from a field, and a storage part (E) for storing the harvested root vegetables, A horizontal posture (a) in which the containing member (22) is placed so as to contain the root vegetables conveyed from the harvesting section (C) in the containing section (E), and the containing member (22) is lowered to the field below. A mounting table (26) on which the mounting portion (41) rotates is provided in a standing position (C) that opens the lower part of the housing member (22), and the housing member (22) is hung from the outside in the lateral direction of the machine body. It is characterized by providing a moving device (24) for lowering the storage member (22) to the farm field where the mounting part (41) of the farm field and the mounting table (26) is rotated to the upright position (C) and the lower part of the housing member (22) is opened. Root crop harvester. A frame frame in which the base part of the mounting table (26) is rotatably supported by the body frame (1) and can be switched between a horizontal posture (a) in which it is deployed to the right side of the body and a storage posture (b) in which it is erected inside the body. 2. The root vegetable according to claim 1, comprising: (40) and a mounting portion (41) provided on said frame (40) so as to be rotatable about a rotation axis (40b) in the front-rear direction. kind of harvester. 3. The root vegetable harvester according to claim 1 or 2, characterized in that the mounting portion (41) rotated to the standing posture (C) functions as an outrigger. A mounting portion (41) in a horizontal posture (A) for placing a storage member (22) is provided at a position lower than a frame (40) in a horizontal posture (A) that is deployed to the right outer side of the fuselage. 4. The root vegetable harvester according to any one of claims 1 to 3, characterized in that the root vegetable harvester is The root vegetable harvesting machine according to any one of claims 1 to 4, characterized in that the rotation shaft (40b) of the mounting part (41) is arranged to be biased toward the machine body side from the lateral center. .

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