Wild vegetable harvester

Abstract

To provide a vegetable harvesting machine capable of automatically removing slack of an upper opening in a storage member such as flexible container bags, in which there is a root crop harvesting machine for storing root vegetables in the flexible container bag suspended in a crane, however if the slack is present in the upper part of the flexible container bag, the root vegetables falling in the flexible container bag and stored therein are spilled out of the upper opening, and therefore an upper opening position of the flexible container bag has to be adjusted each time in order to remove the slack in the upper part of the flexible container bag suspended in the crane.SOLUTION: A vegetable harvesting machine is equipped with a traveling unit A for making a machine body travel, a steering unit B, a harvesting unit C for harvesting the vegetables from a field, a conveyance unit D for succeeding and conveying the vegetables from the harvesting unit C, and a storage unit E for storing the vegetables discharged out of the conveyance unit D. In the vegetable harvesting machine, a moving device 24 for suspending a storage member 22 for storing the vegetables conveyed from the harvesting unit C is provided in the storage unit E, and a biasing member 31 for removing slack of an opening in an upper part of the storage member 22 is provided in the moving device 24.SELECTED DRAWING: Figure 4

Description

Technical Field

[0001] The present invention relates to a vegetable harvester that harvests crops from a field and stores them in a storage member such as a flexible container bag.

Background Art

[0002] Conventionally, there has been a root vegetable harvester that pulls out and conveys root vegetables from a field by a pulling and conveying device and stores the root vegetables in a flexible container bag suspended by a crane provided at the conveyance end portion of a sorting and conveying device (see, for example, Patent Document 1).

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] However, if there is slack in the upper opening of the flexible container bag, the root vegetables that fall and are stored in the flexible container bag will spill out from the upper opening. Therefore, the operator has to manually lift it each time to remove the slack in the upper part of the flexible container bag suspended by the crane and adjust the position of the upper opening of the flexible container bag.

[0005] The present invention has been made in view of the above, and an object thereof is to provide a vegetable harvester in which the slack in the upper opening of a storage member such as a flexible container bag can be automatically removed.

Means for Solving the Problems

[0006] The first aspect of the present invention is In a vegetable harvester equipped with a traveling unit (A) for traveling the machine body, a control unit (B), a harvesting unit (C) for harvesting vegetables from a field, a conveying unit (D) for taking over and conveying the vegetables from the harvesting unit (C), and a storage unit (E) for storing the vegetables discharged from the conveying unit (D), a moving device (24) for suspending a storage member (22) for storing the vegetables conveyed from the harvesting unit (C) in the storage unit (E) is provided, and a biasing member (31) for eliminating the slack of the upper opening of the storage member (22) is provided on the moving device (24). The base of the moving device (24) is rotatably provided on the end side of the movable conveyor (21b) that moves up and down in the conveying unit (D). A hanging hanger (25) for suspending the upper part of the storage member (22) that moves up and down and left and right is provided on the moving device (24). A mounting table (26) for receiving the bottom surface of the storage member (22) is provided in the storage unit (E), and a biasing member (31) is provided between the end side of the movable conveyor (21b) and the moving device (24). A stopper body (29) having a guide (30) for slidably guiding the lower end portion (31a) of the biasing member (31) is provided on the end side of the movable conveyor (21b). A plurality of stoppers (32a, 32b, 33b) for restricting the sliding movement of the lower end portion (31a) of the biasing member (31) are provided at the end of the guide (30). The vegetable harvester is characterized by this. According to the first aspect of the present invention, when storing the vegetables conveyed from the harvesting unit C through the upper opening of the storage member 22, the slack of the upper opening of the storage member 22 can be automatically eliminated by the biasing member 31, preventing the vegetables from spilling out from the upper opening of the storage member 22. The second aspect of the present invention is The guide (30) of the stopper body (29) is composed of a first guide groove (32) having a lifting position stopper (32a) and a slack eliminating position stopper (32b) at both ends, a second guide groove (33) having a second groove left stopper (33a) and a storage position stopper (33b) at both ends, and a communication groove (34) connecting the first guide groove (32) and the second guide groove (33). The stopper body (29) is configured to be freely changeable in the vertical position by manual operation, and the lower end portion (31a) of the biasing member (31) is moved to the first guide groove (32) or the second guide groove (33) by the communication groove (34). This is the vegetable harvester of the first aspect of the present invention. The third aspect of the present invention is The second vegetable harvester of the present invention is characterized in that the length of the second guide groove (33) is longer than that of the first guide groove (32), so that when the moving device (24) is in the storage position, the moving device (24) enters inside the width of the machine body. The fourth aspect of the present invention The mounting table (26) is composed of an inner table (26a) whose base is rotatably supported by a pivot shaft (36) on the machine body and an outer table (26b) whose base is rotatably supported by a pivot shaft (37) at the tip of the inner table (26a). The inner table (26a) and the outer table (26b) can be freely changed between a state where they are on the same horizontal plane and a state where the outer table (26b) is bent in the middle. A middle-fold detection switch (42) is provided between the inner table (26a) and the outer table (26b). When the inner table (26a) is rotated inward of the machine body and stored in the storage position (a) and the outer table (26b) is in the middle-fold state, the middle-fold detection switch (42) detects the lower limit position of the movable conveyor (21b). The vegetable harvester of any one of the first to third aspects of the present invention, characterized in that The fifth aspect of the present invention The middle-fold detection switch (42) is mounted in a state of being protected by a switch mounting stay (41) provided at the tip of the inner table (26a) or the base of the outer table (26b), and the detection terminal (42a) of the middle-fold detection switch (42) protrudes from the switch mounting stay (41). The vegetable harvester of the fourth aspect of the present invention, characterized in that The first invention related to the present invention In a vegetable harvester equipped with a traveling unit A for traveling the machine body, a control unit B, a harvesting unit C for harvesting vegetables from the field, a conveying unit D for taking over and conveying the vegetables from the harvesting unit C, and a storage unit E for storing the vegetables discharged from the conveying unit D, a moving device 24 for suspending a storage member 22 for storing the vegetables conveyed from the harvesting unit C in the storage unit E is provided, and a biasing member 31 for taking up the slack of the upper opening of the storage member 22 is provided on the moving device 24.

[0007] The first invention related to the present invention According to this, since the moving device 24 for suspending the storage member 22 for storing the vegetables conveyed from the harvesting unit C in the storage unit E is provided, and the biasing member 31 for taking up the slack of the upper opening of the storage member 22 is provided on the moving device 24, when storing the vegetables conveyed from the harvesting unit C into the storage member 22 through the upper opening, the biasing member 31 can automatically take up the slack of the upper opening of the storage member 22 and prevent the vegetables from spilling out from the upper opening of the storage member 22.

[0008] Also, when removing the storage member 22 from the moving device 24, the biasing member 31 can move the moving device 24 above the storage member 22 and keep a distance so as not to interfere with the storage member 22.

[0009] The second invention related to the present invention The base of the moving device 24 is rotatably provided on the end side of the movable conveyor 21b that moves up and down in the conveying unit D, a hanging hanger 25 for suspending the upper part of the storage member 22 that moves up and down and left and right is provided on the moving device 24, a mounting table 26 for receiving the bottom surface of the storage member 22 is provided in the storage unit E, and a biasing member 31 is provided between the end side of the movable conveyor 21b and the moving device 24. The first invention related to the present invention It is the vegetable harvester of.

[0010] The third invention related to the present invention A stopper body 29 having a guide 30 for slidably guiding the lower end portion 31a of the biasing member 31 is provided on the end portion side of the movable conveyor 21b, and a plurality of stoppers 32a, 32b, 33b for restricting the sliding movement of the lower end portion 31a of the biasing member 31 are provided at the end of the guide 30. The second invention related to the present invention It is a vegetable harvester.

[0011] The fourth invention related to the present invention The guide 30 of the stopper body 29 is composed of a first guide groove 32 having a lifting position stopper 32a and a sag removal position stopper 32b at both ends, a second guide groove 33 having a second groove left stopper 33a and a storage position stopper 33b at both ends, and a communication groove 34 communicating the first guide groove 32 and the second guide groove 33. The stopper body 29 is configured to be freely movable up and down by manual operation, and the lower end portion 31a of the biasing member 31 is moved to the first guide groove 32 or the second guide groove 33 by the communication groove 34. The third invention related to the present invention It is a vegetable harvester.

[0012] The fourth invention related to the present invention According to the present invention, since the stopper body 29 is configured to be freely movable up and down by manual operation and the lower end portion 31a of the biasing member 31 is moved to the first guide groove 32 or the second guide groove 33 by the communication groove 34, the first guide groove 32 or the second guide groove 33 is artificially selected, and malfunction of the operations performed by the respective stoppers 32a, 32b, 33b can be prevented. In addition, the artificial selection of the first guide groove 32 or the second guide groove 33 can be easily performed by changing the vertical position of the stopper body 29.

[0013] The fifth invention related to the present invention The length of the second guide groove (33) is made longer than the length of the first guide groove (32), and when the moving device (24) is in the storage position, the moving device (24) enters inside the width of the machine body. The fourth invention related to the present invention It is a vegetable harvester.

[0014] The fifth invention related to the present invention According to this, since the length of the second guide groove 33 is longer than the length of the first guide groove 32, the lower end portion 31a of the biasing member 31 can be largely moved from the slack removal position stopper 32b position to the storage position stopper 33b position, and the moving device 24 can be largely moved inward of the machine body, the machine body width can be reduced, and interference with obstacles or the like during traveling or storage can be prevented. Further, when the moving device 24 is stored, it can enter inside the machine body width.

[0015] The sixth invention related to the present invention The mounting table 26 is composed of an inner table 26a whose base is rotatably supported by a pivot shaft 36 on the machine body and an outer table 26b whose base is rotatably supported by a pivot shaft 37 at the tip of the inner table 26a. The inner table 26a and the outer table 26b can be freely changed between a state where they are a horizontal same-plane table and a middle-folded state where the outer table 26b is bent. A middle-fold detection switch 42 is provided between the inner table 26a and the outer table 26b. When the inner table 26a is rotated inward of the machine body and stored at the storage position (a) and the outer table 26b is in the middle-folded state, the middle-fold detection switch 42 detects the lower limit position of the movable conveyor 21b. Any one of the second to fifth inventions related to the present invention It is a vegetable harvester.

[0016] The sixth invention related to the present invention According to this, the mounting table 26 is composed of an inner table 26a whose base is rotatably supported by a pivot shaft 36 on the machine body and an outer table 26b whose base is rotatably supported by a pivot shaft 37 at the tip of the inner table 26a. The inner table 26a and the outer table 26b can be freely changed between a state where they are a horizontal same-plane table and a middle-folded state where the outer table 26b is bent. Since a middle-fold detection switch 42 is provided between the inner table 26a and the outer table 26b, with the inner table 26a rotated inward of the machine body and stored at the storage position (a) and the outer table 26b in the middle-folded state, the accommodating member 22 can be lowered to a narrow field at the edge of the ridge.

[0017] Further, when the inner table 26a is rotated inward of the machine body and stored at the storage position (a) and the outer table 26b is in the middle-folded state, since the middle-fold detection switch 42 detects the lower limit position of the movable conveyor 21b, damage due to incorrect operations such as excessive lowering of the movable conveyor 21b can be prevented.

[0018] The seventh invention related to the present invention is attached in a protected state to a switch mounting stay 41 provided at the tip of the inner base 26a or the base of the outer base 26b of the middle fold detection switch 42, with the detection terminal 42a of the middle fold detection switch 42 protruding from the switch mounting stay 41 The sixth invention related to the present invention This is a vegetable harvester.

Brief Description of the Drawings

[0019]

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Best Mode for Carrying Out the Invention

[0020] As an example of an embodiment of the present invention, a carrot harvester, which is a type of vegetable harvester, will be described. In the following, with reference to the forward direction of the machine body, the front and rear, and the left and right are defined.

[0021] <Overall Configuration> The carrot harvester includes a traveling unit A for driving the machine body, a control unit B for the operator to board, a harvesting unit C for pulling out carrots from the field on one side of the left and right of the machine body and transporting them to the upper rear side of the machine body, taking over the carrots from the harvesting unit C, cutting the foliage while transporting them to the rear of the machine body at the foliage cutting unit, receiving the carrots falling from the foliage cutting unit, processing the remaining foliage on the carrots at the remaining foliage processing unit, taking over the carrots from the remaining foliage processing unit, transporting the carrots from one side of the left and right of the machine body to the other side of the left and right, and a conveying unit D for an auxiliary worker to sort the carrots being conveyed, and a storage unit E for arranging a storage member for the carrots discharged from the conveying unit D.

[0022] <Traveling Unit A> Below the machine body frame 1, there are left and right drive sprockets 2, 2 on the front side of the machine body and left and right driven wheels 3, 3 on the rear side of the machine body, and left and right belts 5, 5 are wound around a plurality of idler wheels 4 attached between the left and right drive sprockets 2, 2 and the left and right driven wheels 3, 3 to form left and right crawlers 6L, 6R. Then, the left and right drive sprockets 2, 2 of the left and right crawlers 6L, 6R are attached to left and right drive shafts 2b, 2b extending from a transmission case 2a to which the power of the engine is transmitted to both the left and right sides, and the left and right crawlers 6L, 6R are attached to the machine body frame 1 with a certain left and right interval.

[0023] <Control Unit B> Attach the control unit frame 7 to the upper right part of the machine body frame 1. Attach the control seat 8 to the control unit frame 7 and attach the control panel 9 to the front side of the machine body. Then, attach a shift operation lever 10 for switching the forward and backward movement and traveling speed of the machine body and a lift operation lever 11 for operating the left and right turning operation of the machine body and the working height of the harvesting unit C to the control panel 9, and provide a cross-direction operation lever 27 described later.

[0024] Also, by detachably attaching a radiator cover 12 that protects a radiator (not shown) for cooling the engine and takes in cooling air to the other side (right side of the machine body) of the control unit frame 7 on the left and right of the machine body, the control unit B is configured.

[0025] With the above configuration, by providing control members such as the shift operation lever 10 and the lift operation lever 11 that can perform a plurality of operations with one rod, the operation of the machine body becomes easy, so the work of the operator can be reduced.

[0026] <Harvesting unit C> Mount left and right driven pulleys rotatably on the front side of the machine body of the left and right extraction frames 13, 13, mount left and right drive pulleys on the rear side of the machine body, and wrap a left and right clamping conveyor belt for pulling out carrots and conveying them to the rear part of the machine body between the left and right driven pulleys and the left and right drive pulleys. At the same time, press the left and right clamping conveyor belt with a plurality of tension rollers, and press the inner side surfaces of the left and right clamping conveyor belts against each other to form a carrot extraction and conveyance path R. Then, attach a rotating frame that can rotate in the vertical direction with a left and right horizontal axis as a rotation fulcrum above the machine body frame 1, and attach a transmission case that transmits driving force to the left and right drive pulleys to the rear end of the rotating frame so that it can rotate up and down around the rotation fulcrum. Also, connect the machine body frame 1 and the rotating frame with a lift cylinder, and attach the lift cylinder so that it can be operated by the control unit B to form a pulling and conveying device 17.

[0027] Further, a vertical lifting device 18 that raises the foliage of the carrot is provided in front of the pulling and conveying device 17, a horizontal lifting device 19 that scoops up the foliage lifted by the vertical lifting device 18, a weeding rod 20 provided at the front of the horizontal lifting device 19, a rotatable gauge wheel that prevents the pulling and conveying device 17 from over-running downward, and a left and right vibrating soiler that reciprocates with the driving force of the engine to loosen the soil on the left and right sides of the carrot in the soil are provided.

[0028] Then, a tail cutting device that cuts the beard roots of the carrot being conveyed by the pulling and conveying device 17 is attached below the pulling and conveying passage R to constitute the harvesting part C.

[0029] With the above configuration, by providing the horizontal lifting device 19 equipped with the weeding rod 20 on the front side of the machine body and the vertical lifting device 18, the harvesting operation can be performed while scraping up the foliage of the carrot that has fallen in the field, and the visibility of the carrot to be harvested is improved, so the pulling position is easy to align, and the omission of the crop is reduced, thus improving the working efficiency.

[0030] Also, since it is possible to prevent the carrot from being damaged by contact with the left and right vibrating soiler or the like, the commercial value of the carrot is improved.

[0031] And, the machine body frame 1 and the rotating frame that is rotatable in the vertical direction with the left and right horizontal axes as the rotation fulcrum are connected by a lifting cylinder, and by operating the lifting operation lever 11 of the control part B to expand and contract the lifting cylinder, the vertical height of the entire harvesting part C can be adjusted by operating the lifting operation lever 11. Therefore, while adjusting the position of the starting end of the pulling and conveying of the harvesting part C in the vertical direction, the position adjustment of the starting end of the pulling and conveying can be performed according to the appropriate pulling height of the carrot growing in the field, and the omission of the carrot is prevented, thus improving the working efficiency.

[0032] Also, if the harvesting part C is raised during turning, the lower end of the harvesting part C is less likely to contact the field, so the turning operation is performed smoothly and the working efficiency is improved.

[0033] <Conveying part D> The sorting and conveying device 21 for the sorting operation of the conveying unit D is arranged in the left - right direction of the machine body toward the accommodating unit E having a flexible container bag 22, which is an accommodating member for storing carrots, below the rear part of the pulling - out and conveying device 17 of the harvesting unit C. It is composed of a chain conveyor having crossbars at regular intervals that rotate by the driving force from the engine. The carrots whose foliage parts have been clamped and conveyed by the pulling - out and conveying device 17 have their lower ends of the foliage parts (slightly above the heads of the carrots) cut by the foliage cutting part, and the carrots fall downward. The remaining - foliage processing part receives the falling carrots, processes the remaining foliage parts on the carrots, and conveys them to the conveying unit D. Then, the sorting and conveying device 21 of the conveying unit D conveys the carrots from its left end to the right (accommodating unit E).

[0034] Further, the sorting and conveying device 21 is composed of a horizontal conveyor 21a horizontally provided on the right side of the machine body from below the rear part of the pulling - out and conveying device 17 of the harvesting unit C, and a movable conveyor 21b that takes over the harvested crop from the right end of the horizontal conveyor 21a and conveys it obliquely upward and to the right to the accommodating unit E.

[0035] The left end of the movable conveyor 21b, which takes over the harvested crop from the right end of the horizontal conveyor 21a, is rotatably supported by a rotation support shaft 21d. The right - end side on the accommodating unit E side moves up and down by the expansion and contraction operation of the electric cylinder 21c for vertical movement, so that the inclination angle can be changed.

[0036] An auxiliary work seat 23 is provided on the rear side of the machine body of the movable conveyor 21b. An operator sitting on the auxiliary work seat 23 takes out non - marketable carrots (small carrots or deformed carrots) from the carrots sent by the movable conveyor 21b, and only sends the carrots with appropriate commercial value to the accommodating unit E.

[0037] Also, the operator sitting on the auxiliary work seat 23 expands and contracts the electric cylinder 21c for vertical movement with a foot - operated upward switch and downward switch to move the right - end side of the movable conveyor 21b up and down.

[0038] <Accommodating unit E> The storage part E is arranged on the right side of the sorting and conveying device 21, and is composed of a hanging hanger 25 that 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 on which a flexible bag 22 suspended by the hanging hanger 25 is placed.

[0039] The movable conveying conveyor 21b has its left end base pivotally supported by a rotation support shaft 21d and is provided toward the right end of the machine body. Then, it rotates by the driving force from the engine to convey the carrots to the right end and discharges them downward from the right end. Also, at the middle part of the movable conveying conveyor 21b, the piston tip of an electric cylinder 21c for vertical movement whose base is pivotally supported by the machine body frame 1 is connected.

[0040] That is, while the operator sitting on the auxiliary work seat 23 steps on the ascending switch, the electric cylinder 21c for vertical movement extends and rotates around the rotation support shaft 21d to rise, and while stepping on the descending switch, the electric cylinder 21c for vertical movement contracts and rotates around the rotation support shaft 21d to descend. Also, when the operator operates the cross-direction operation lever 27 provided at the right end of the control panel 9 to the right in a state of getting off the field and facing the rear of the machine body, the electric cylinder 21c for vertical movement extends and rotates around the rotation support shaft 21d to rise, and when operating to the left, the electric cylinder 21c for vertical movement contracts and rotates around the rotation support shaft 21d to descend.

[0041] The hanging hanger 25 moves up and down and left and right by an operating arm 24 provided at the right end of the movable conveying conveyor 21b.

[0042] The actuating arm 24 is pivotally supported by a pivot shaft 28 provided in the front-rear direction such that the base rotates counterclockwise (upward movement direction) when viewed from the rear at the right end of the movable conveying conveyor 21b, but stops rotating at a predetermined position in the clockwise direction (downward direction), and the tip side thereof extends upward and outward of the right side of the machine body. It is composed of a base arm 24a, a rotating arm 24b pivotally supported at the tip of the base arm 24a, and a rotating electric cylinder 24c as a rotating actuator disposed between the base arm 24a and the rotating arm 24b.

[0043] Then, a stopper body 29 pivotally supported by a pivot shaft 29a is provided on the right end side of the movable conveying conveyor 21b with respect to the pivot shaft 28 about which the base of the actuating arm 24 is pivotally supported. The upper end of an oil damper 31, which is a biasing member having a pin 31a at the lower end slidably engaged with a guide 30 formed on the stopper body 29, is pivotally supported by a pivot shaft 31b at a middle portion of the base arm 24a of the actuating arm 24.

[0044] Note that, instead of the oil damper 31, any other biasing member such as a spring or a leaf spring may be used.

[0045] The guide 30 of the stopper body 29 is a crank-shaped guide groove composed of a first guide groove 32 extending in the left-right direction of the machine body, a second guide groove 33, and a communication groove 34 communicating the two guide grooves 32 and 33.

[0046] The left and right ends of the first guide groove 32 become a first groove left stopper (lifting position stopper) 32a and a first groove right stopper (slack removal position stopper) 32b that regulate the sliding movement of the pin 31a at the lower end of the oil damper 31, and the left and right ends of the second guide groove 33 become a second groove left stopper 33a and a second groove right stopper (storage position stopper) 33b that regulate the sliding movement of the pin 31a at the lower end of the oil damper 31.

[0047] Then, a left fixing groove (lifting position fixing groove) 32c for fixing the pin 31a at the lower end of the oil damper 31 is provided in the first groove left stopper (lifting position stopper) 32a of the first guide groove 32, and a right fixing groove (storing position fixing groove) 33c for fixing the pin 31a at the lower end of the oil damper 31 is provided in the second groove right stopper (storing position stopper) 33b of the second guide groove 33.

[0048] Note that the stopper body 29 is pivotally supported at the base side by a pivot shaft 29a, and the pin 31a at the lower end of the oil damper 31 can move within the range where it can move to the left fixing groove (lifting position fixing groove) 32c at the position of the first groove left stopper (lifting position stopper) 32a of the first guide groove 32, and the pin 31a at the lower end of the oil damper 31 can move within the range where it can move to the right fixing groove (storing position fixing groove) 33c at the position of the second groove right stopper (storing position stopper) 33b of the second guide groove 33, and it is provided so as to be vertically movable.

[0049] And a gripping portion 29b is provided on the tip side of the stopper body 29. When the pin 31a at the lower end of the oil damper 31 moves in the first guide groove 32 and when it moves in the second guide groove 33, an operator holds the gripping portion 29b and rotates the stopper body 29 up and down around the pivot shaft 29a for switching at the position of the communication groove 34.

[0050] Therefore, since the stopper body 29 is rotated up and down manually to move the pin 31a at the lower end of the oil damper 31 to the first guide groove 32 or the second guide groove 33 at the communication groove 34, the first guide groove 32 or the second guide groove 33 is artificially selected, and malfunction of the operations performed by each of the stoppers 32a, 32b, 33b can be prevented. Also, the artificial selection of the first guide groove 32 or the second guide groove 33 can be easily performed by changing the vertical position of the stopper body 29.

[0051] Also, the operator holds the gripping portion 29b and rotates the stopper body 29 upward so that the pin 31a at the lower end of the oil damper 31 moves to the left fixing groove (lifting position fixing groove) 32c at the position of the first groove left stopper (lifting position stopper) 32a of the first guide groove 32, and rotates the stopper body 29 downward so that the pin 31a at the lower end of the oil damper 31 moves to the right fixing groove (storage position fixing groove) 33c at the position of the second groove right stopper (storage position stopper) 33b of the second guide groove 33, and fixes the pin 31a at the lower end of the oil damper 31 in each of the left fixing grooves (lifting position fixing grooves) 32c and the right fixing grooves (storage position fixing grooves) 33c.

[0052] Further, a convex cam 29c is provided on the base end side of the stopper body 29. As will be described in detail in the section of <Ginseng harvesting operation> below, when the movable conveyor 21b is raised to the uppermost position and the operating arm 24 is in the storage position, the pin 31a at the lower end of the oil damper 31 is fixed in the right fixing groove (storage position fixing groove) 33c. However, even if the operator forgets to perform the operation of rotating the stopper body 29 upward to release the fixation when moving the operating arm 24 from the storage position to the working position, when the movable conveyor 21b is lowered from the uppermost position, the convex cam 29c contacts the contact body 35 whose base is fixed to the radiator cover 12, causing the stopper body 29 to rotate upward, and automatically disengaging the pin 31a at the lower end of the oil damper 31 from the right fixing groove (storage position fixing groove) 33c and moving it to the second guide groove 33.

[0053] With the above configuration, the oil damper 31 biases the operating arm 24 in the upward rotation direction with the pin 31a at the lower end contacting the first groove left stopper (lifting position stopper) 32a, the first groove right stopper (sagging removal position stopper) 32b, and the second groove right stopper (storage position stopper) 33b, restricting movement.

[0054] The suspension hanger 25 is attached to the front side and the rear side of the tip of the rotating arm 24b. The front suspension hanger 25 and the rear suspension hanger 25 have the same configuration, and hooks 25a are provided at the left and right tip portions thereof. Above the mounting table 26, the four hooks 25a of the front suspension hanger 25 and the rear suspension hanger 25 are respectively hooked on the suspension rings 22a sewn on the four sides of the upper end edge of the flexible container bag 22 to suspend and support the flexible container bag 22.

[0055] In addition, each hook 25a of the front suspension hanger 25 and the rear suspension hanger 25 is pivotally supported at the middle part by a pivot shaft 25b at the left and right tip portions of the front suspension hanger 25 and the rear suspension hanger 25 so as to be rotatable, a U-shaped hook 25a is formed at the lower part, and a gripping operation portion 25c extending upward is formed at the upper part.

[0056] And a tension spring 25d is provided between the left and right tip portions of the front suspension hanger 25 and the rear suspension hanger 25 and the U-shaped hook 25a at the lower part, and the tip of the hook 25a is engaged with the locking hole 25e and closed by the biasing force of the tension spring 25d.

[0057] Therefore, the operation of hanging the flexible container bag 22 on the suspension hanger 25 is as follows: First, hold the gripping operation portions 25c of the front suspension hanger 25 and the rear suspension hanger 25, open the hook 25a against the biasing force of the tension spring 25d by separating it from the locking hole 25e, hook the suspension ring 22a at the upper end edge of the flexible container bag 22, release the gripping operation portion 25c, and engage the tip of the hook 25a with the locking hole 25e again to suspend it.

[0058] Also, on the upper surfaces of the left and right tip portions of the front suspension hanger 25 and the rear suspension hanger 25, there are provided suspension string locking hooks 25f for locking when the suspension string 22b of the flexible container bag 22 is hung on the upper surfaces of the left and right tip portions of the front suspension hanger 25 and the rear suspension hanger 25.

[0059] At the right end of the control panel 9, a cross-direction operation lever 27 is provided. When the operator operates it to the right in a state where the operator has descended to the field and is facing the rear of the machine body, the electric cylinder 21c for vertical movement extends, and the movable transfer conveyor 21b rotates around the rotation support shaft 21d and rises. When the operator operates it to the left, the electric cylinder 21c for vertical movement contracts, and the movable transfer conveyor 21b rotates around the rotation support shaft 21d and descends. When the operator operates it to the rear of the machine body, the electric cylinder 24c for rotation extends, and the rotation arm 24b rotates around the pivot shaft and opens to the right outer side. When the operator operates it to the front of the machine body, the electric cylinder 24c for rotation contracts, and the rotation arm 24b rotates around the pivot shaft and closes to the inner side of the left machine body.

[0060] When operating the cross-direction operation lever 27, if the movable transfer conveyor 21b is not at the uppermost position, even if the cross-direction operation lever 27 is operated to the rear of the machine body, the electric cylinder 24c for rotation will not operate, and the rotation arm 24b will not rotate around the pivot shaft and open to the right outer side. That is, only when the movable transfer conveyor 21b is at the uppermost position, the cross-direction operation lever 27 can be operated to the rear of the machine body to activate the electric cylinder 24c for rotation, causing the rotation arm 24b to rotate around the pivot shaft and open to the right outer side.

[0061] The mounting table 26 is composed of an inner table 26a whose base is rotatably supported by a pivot shaft 36 in the front-rear direction on the machine body frame 1 and an outer table 26b whose base is rotatably supported by a pivot shaft 37 in the front-rear direction at the tip of the inner table 26a.

[0062] A tension spring 38 is provided between the inner table 26a and the machine body frame 1. By the tension spring 38 pulling beyond the pivot shaft 36 (so-called, beyond the fulcrum), the inner table 26a rotates around the pivot shaft 36 and stands vertically, and is held in the storage position (a) where it is stored inside the machine body and the horizontal working position (b).

[0063] The outer table 26b is rotatably supported at the tip of the inner table 26a by a pivot shaft 37 at its base. By inserting the locking pin 39 at the base of the outer table 26b into the locking hole 40 at the tip of the inner table 26a, the outer table 26b becomes flush with the inner table 26a.

[0064] That is, with the inner table 26a in the horizontal working position (B), the locking pin 39 at the base of the outer table 26b is inserted into the locking hole 40 at the tip of the inner table 26a to form a flat table surface with the inner table 26a, and the flexible container bag 22 is placed on the upper surface.

[0065] Also, with the inner table 26a erected vertically to the storage position (A), the locking pin 39 at the base of the outer table 26b is inserted into the locking hole 40 at the tip of the inner table 26a to form a flat table surface with the inner table 26a, and the mounting table 26 is in a storage posture where it is stored inside the machine body, and the lateral width of the machine body can be narrowed.

[0066] And, at the end face of the tip of the inner table 26a, the inner end of the L-shaped plate switch mounting stay 41 is welded and fixed, and the middle fold detection switch 42 is attached to the switch mounting stay 41 with screws or the like.

[0067] The switch mounting stay 41 is composed of a vertical wall panel 41a for mounting the middle fold detection switch 42 and an upper surface panel 41b covering the upper part of the middle fold detection switch 42, and has a function as a protective member for the middle fold detection switch 42.

[0068] Note that the switch mounting stay 41 is provided such that the upper surface panel 41b is at a position slightly lower than the upper surface of the inner table 26a (a height of 5 mm or less lower than the upper surface of the inner table 26a), and a U-shaped synthetic resin protector 41c is attached to the tip end surface of the upper surface panel 41b.

[0069] And, when the outer table 26b is inserted with the locking pin 39 at the base of the outer table 26b into the locking hole 40 at the tip of the inner table 26a to form a flat table surface with the inner table 26a, it is configured such that there is a gap W between the tip of the protector 41c and the end face of the base of the outer table 26b, so that the tip of the protector 41c and the end face of the base of the outer table 26b do not interfere due to the vibration of the machine body.

[0070] The detection terminal 42a of the middle fold detection switch 42 is provided to protrude outward from the outer end of the switch mounting stay 41, and turns ON when the outer table 26b is locked with the locking pin 39 inserted through the locking hole 40 at the tip of the inner table 26a to form the same flat table as the inner table 26a.

[0071] Therefore, the middle fold detection switch 42 can determine whether the mounting table 26 has the inner table 26a and the outer table 26b in the same flat table, or whether the outer table 26b is folded with respect to the inner table 26a.

[0072] Also, at a position facing the base end face of the inner table 26a of the body frame 1, a storage detection switch 43 that comes into contact with the base end face of the inner table 26a and turns ON is provided.

[0073] Therefore, the storage detection switch 43 detects and turns ON when the inner table 26a reaches the horizontal working position (b), and turns OFF when it rotates around the pivot shaft 36, stands up vertically, and reaches the storage position (a) where it is stored inside the body.

[0074] And by displaying the state of the mounting table 26 on the monitor provided on the operation panel 9, the operator can immediately understand the state of the mounting table 26, prevent misoperations, and have good workability.

[0075] For example, when the storage detection switch 43 is ON and the middle fold detection switch 42 is ON, a picture display showing that the inner table 26a and the outer table 26b are in the same horizontal flat table is shown. When the storage detection switch 43 is ON and the middle fold detection switch 42 is OFF, a picture display showing that the inner table 26a is in the horizontal working position (b) and the outer table 26b is in the middle fold state where it is bent is shown.

[0076] Also, when the outer table 26b is in the middle fold state where it is bent at the storage position (a) where the inner table 26a of the mounting table 26 stands up vertically and is stored inside the body, the storage detection switch 43 is OFF and the middle fold detection switch 42 is OFF. However, since the middle fold detection switch 42 is located below the movable transfer conveyor 21b in this state, the middle fold detection switch 42 is also used as a detection switch for the lower limit of the descent of the movable transfer conveyor 21b.

[0077] That is, when the folding detection switch 42 turns ON while the storage detection switch 43 is OFF and the folding detection switch 42 is OFF, the lowering of the movable conveyor 21b is forcibly stopped. This is to prevent the movable conveyor 21b from lowering too much and prevent problems such as damage when the inner table 26a of the mounting table 26 stands vertically and is stored inside the machine body at the storage position (a), and the outer table 26b is in a folded state where it is bent, and the cross-direction operation lever 27 is operated to lower the full flexo bag 22 filled with harvested carrots to the field.

[0078] In the above, an example is shown in which the folding detection switch 42 is attached to the switch mounting stay 41 provided at the tip of the inner table 26a. However, a switch mounting stay 41 may be provided at the base of the outer table 26b, and the folding detection switch 42 may be attached to the switch mounting stay 41.

[0079] <Carrot Harvesting Work> First, as shown in FIG. 4, the mounting table 26 is set to a use state in which the inner table 26a and the outer table 26b are on the same horizontal plane and extend horizontally toward the right outside of the machine body, and the bottom of the flexo bag 22 suspended by the suspension hanger 25 is received.

[0080] Then, holding the gripping portion 29b of the stopper body 29, the pin 31a at the lower end of the oil damper 31 is switched to a state of moving in the first guide groove 32.

[0081] Then, by operating the cross-direction operation lever 27, the movable conveyor 21b is moved to the lowest position with the rotation arm 24b closed to the inside of the left machine body.

[0082] At this time, since the stopper body 29 is in an inclined state where the right side is lower, the pin 31a at the lower end of the oil damper 31 contacts the first groove right stopper (slack removal position stopper) 32b of the first guide groove 32 (FIG. 5), and the oil damper 31 biases the operating arm 24 in the upward rotation direction.

[0083] Hook each suspension ring 22a sewn to the four sides of the upper edge of the flexible container bag 22 to each hook 25a of the suspension hanger 25 to suspend the flexible container bag 22, and place the bottom of the flexible container bag 22 on the mounting table 26.

[0084] At this time, since the left and right central part of the suspension hanger 25 is pivotally supported by a pivot shaft 24d at the tip of the operating arm 24 so as to be rotatable, by setting the outside of the suspension hanger 25 outside the machine body to be high, it is possible to prevent the carrots that fall into the flexible container bag 22 from the right end of the movable transfer conveyor 21b from jumping outwards.

[0085] Then, the operator sitting on the operator's seat 8 advances the carrot harvester. After aligning the front end of the pulling and conveying path R of the pulling and conveying device 17 of the harvesting unit C with the carrot row in the field, the operator operates the lifting operation lever 11 to lower the harvesting unit C, turns on the digging clutch, drives each part, and moves forward. Then, the carrot foliage is scraped up by the weed separating rod 20, the vertical lifting device 18, and the horizontal lifting device 19, and the carrot foliage is clamped in the pulling and conveying path R of the pulling and conveying device 17. The soil on the side and below of the carrot is loosened by the left and right vibrating soilers, and the carrot is clamped and pulled out by the pulling and conveying device 17 and conveyed rearward and upward.

[0086] Then, the carrot whose foliage part has been clamped and conveyed by the pulling and conveying device 17 has its lower end of the foliage part (slightly above the head of the carrot) cut off at the foliage cutting part, and the carrot falls downward. The falling carrot is received by the residual leaf processing part, which processes the foliage part remaining on the carrot and conveys it to the conveying part D. Then, the carrot is conveyed from the left end to the right (the storage part E) by the movable transfer conveyor 21b of the conveying part D.

[0087] At this time, an operator sitting on the auxiliary work seat 23 on the rear side of the machine body of the movable transfer conveyor 21b takes out the carrots that cannot be used as products (small carrots or deformed carrots) from the carrots sent by the movable transfer conveyor 21b, and only the carrots with commercial value are sent to the storage part E.

[0088] The carrots sent to the right end by the movable conveyor 21b fall and are stored in the flexible container bag 22 suspended from each hook 25a of the hanging hanger 25 at the right end of the movable conveyor 21b.

[0089] As the amount of carrots stored in the flexible container bag 22 increases, the operator sitting on the auxiliary work seat 23 steps on the up switch to extend the vertical movement electric cylinder 21c, rotates the movable conveyor 21b around the rotation support shaft 21d, and sequentially raises it.

[0090] At this time, since the operating arm 24 to which the hanging hanger 25 suspending the flexible container bag 22 is attached is biased in the upward rotation direction by the oil damper 31, the slack of the flexible container bag 22 above the carrots stored in the flexible container bag 22 is removed, the upper mouth part of the flexible container bag 22 automatically rises, and when the carrots fall into the flexible container bag 22 from the right end of the movable conveyor 21b, a situation where they jump outwards and spill can be appropriately avoided.

[0091] Then, when the movable conveyor 21b is rotated around the rotation support shaft 21d and raised until the flexible container bag 22 is full of carrots, the operator stops the drive of the aircraft and parks.

[0092] The operator sitting on the auxiliary work seat 23 leaves the auxiliary work seat 23, gets off the field, stands near the right end of the control panel 9, and operates the cross-direction operation lever 27 with the body facing the rear of the aircraft.

[0093] First, the cross-direction operation lever 27 is operated to the right to extend the vertical movement electric cylinder 21c and raise the movable conveyor 21b to the uppermost position, and as shown in FIG. 6, the flexible container bag 22 is lifted above the mounting table 26.

[0094] At this time, since the stopper body 29 is in an inclined state with the right side being higher, the pin 31a at the lower end of the oil damper 31 moves leftward in the first guide groove 32 and contacts the first groove left stopper (lifting position stopper) 32a (Fig. 7), and the oil damper 31 biases the operating arm 24 in the upward rotation direction.

[0095] Then, the cross-direction operation lever 27 is operated rearward of the machine body to extend the rotation electric cylinder 24c, rotate the rotation arm 24b around the pivot shaft, open it to the right outside, and move the flexible container bag 22 to the right outside of the mounting table 26 as shown in Fig. 8.

[0096] Then, the cross-direction operation lever 27 is operated to the left to contract the vertical movement electric cylinder 21c and lower the movable transfer conveyor 21b to the lowest position, and lower the flexible container bag 22 to the field as shown in Fig. 9.

[0097] When a following work vehicle such as a truck equipped with a loading platform for collecting the flexible container bag 22 runs parallel to the right side of the carrot harvester, the flexible container bag 22 is lowered onto the loading platform of the following work vehicle.

[0098] Then, the gripping operation part 25c of each suspension hanger 25 is gripped, and against the biasing force of the tension spring 25d, the hook 25a is separated from the locking hole 25e and opened and removed from the suspension ring 22a at the upper edge of the flexible container bag 22.

[0099] Then, when the hook 25a of each suspension hanger 25 is removed from the suspension ring 22a at the upper edge of the flexible container bag 22, as shown in Fig. 10, since the oil damper 31 biases the operating arm 24 in the upward rotation direction, each suspension hanger 25 automatically moves away above the flexible container bag 22, and interference with the flexible container bag 22 can be avoided.

[0100] Next, operate the cross-direction operation lever 27 to return the movable conveyor 21b to the lowest position with the first rotating arm 24b closed inside the left body. Then, hook the suspension rings 22a sewn to the four sides of the upper edge of the empty flexible container bag 22 onto the respective hooks 25a of the suspension hanger 25 to suspend the flexible container bag 22. After the bottom of the flexible container bag 22 is received by the mounting table 26 (Figure 4), sit on the auxiliary work seat 23. Then, drive each part to move the machine body forward and resume the harvesting work.

[0101] Therefore, since the suspension hanger 25 moves up and down and left and right by the operating arm 24 provided at the right end of the movable conveyor 21b, the flexible container bag 22 placed on the mounting table 26 in a state of being suspended by the suspension hanger 25 can be lifted above the mounting table 26 by the operating arm 24 and lowered onto the field at a position outside the right side of the mounting table 26. Even if the flexible container bag 22 tilted on the field or the machine body meandered slightly, it is possible to avoid the flexible container bag 22 coming into contact with the machine body, and a good and appropriate harvesting work can be performed.

[0102] And when there are obstacles such as ridges or walls on the side at the edge of the field and the flexible container bag 22 cannot be lowered to the side of the machine body, operate the cross-direction operation lever 27 to lift the flexible container bag 22 above the mounting table 26, and make the inner table 26a of the mounting table 26 stand vertically and the outer table 26b bent into a folded state and stored inside the machine body (position (a)) (for example, the state of the mounting table 26 in Figure 13), and release the lower part of the flexible container bag 22.

[0103] Then, operate the cross-direction operation lever 27 to the left, contract the vertical movement electric cylinder 21c to lower the movable conveyor 21b to the lowest position, and lower the flexible container bag 22 onto the field at the position of the mounting table 26.

[0104] At this time, since the inner table 26a of the mounting table 26 stands upright vertically and is in the folded state where the outer table 26b is folded inside the machine body at the storage position (a), the middle fold detection switch 42 is located below the movable transfer conveyor 21b and can also be used as a detection switch for the lower limit of the descent of the movable transfer conveyor 21b.

[0105] Therefore, when the storage detection switch 43 is OFF and the middle fold detection switch 42 is OFF, but when the movable transfer conveyor 21b descends and contacts the middle fold detection switch 42 and the middle fold detection switch 42 turns ON, the descent of the movable transfer conveyor 21b is forced to stop, preventing the movable transfer conveyor 21b from descending too much and preventing problems such as damage in advance.

[0106] Then, grasp the gripping operation part 25c of each hanging hanger 25, resist the biasing force of the tension spring 25d, separate the hook 25a from the locking hole 25e, and remove it from the suspension ring 22a at the upper edge of the open flexible container bag 22.

[0107] In this way, when there are obstacles such as ridges or walls on the side at the edge of the field and the flexible container bag 22 cannot be lowered to the side of the machine body, operate the cross-direction operation lever 27 to lift the flexible container bag 22 above the mounting table 26, and make the inner table 26a of the mounting table 26 stand upright vertically and the outer table 26b be in the middle-folded state where it is folded inside the machine body at the storage position (a), thereby releasing the lower part of the flexible container bag 22, so that the flexible container bag 22 can be lowered to the field at the position of the mounting table 26.

[0108] Next, other working modes other than the above-mentioned first working mode will be described.

[0109] FIG. 11 shows an example of the second working mode, which is an example of the operation of lifting the flexible container bag 22 filled with carrots upward from the mounting table 26 using the suspension string 22b of the flexible container bag 22.

[0110] That is, the operator holds the gripping part 29b of the stopper body 29, rotates the stopper body 29 upward so that the pin 31a at the lower end of the oil damper 31 moves to the left fixing groove (lifting position fixing groove) 32c at the position of the first groove left stopper (lifting position stopper) 32a of the first guide groove 32, and fixes the pin 31a at the lower end of the oil damper 31 in the left fixing groove (lifting position fixing groove) 32c.

[0111] Then, after operating the cross-direction operation lever 27 to slightly lower the movable conveyor 21b to loosen the lifting state, operate with the gripping operation part 25c to remove each hook 25a of the hanging hanger 25 from the hanging ring 22a at the upper end edge of the flexicon bag 22, hang the suspension string 22b on each suspension string locking hook 25f of the hanging hanger 25, operate the cross-direction operation lever 27 to the right, extend the vertically moving electric cylinder 21c to raise the movable conveyor 21b to the upper position, and lift the flexicon bag 22 above the mounting table 26.

[0112] And the movement of the flexicon bag 22 after being lifted above the mounting table 26 is the same as that in the first working mode.

[0113] For the flexicon bag 22 not provided with the hanging ring 22a, hang the suspension string 22b on each suspension string locking hook 25f of the hanging hanger 25 and perform all the operations.

[0114] FIG. 12 shows an example of the third working mode, which is an example of the operation of lowering the flexicon bag 22 filled with carrots in the ridge.

[0115] That is, when harvesting ginseng on the ridge at the edge of the ridge and lowering the flexible container bag 22 onto the ridge immediately adjacent to the ridge, in a state where the inner table 26a and the outer table 26b of the mounting table 26 are on the same flat plane, they protrude long to the right side of the machine body and the machine body cannot be brought close to the ridge. Therefore, the inner table 26a is set to the horizontal working position (B), and the locking pin 39 at the base of the outer table 26b is removed from the locking hole 40 at the tip of the inner table 26a, and the outer table 26b is made to hang downward in a folded state at the outer end of the inner table 26a. After bringing the machine body as close as possible to the ridge, the flexible container bag 22 is lowered onto the ridge in the same manner as in the first working mode.

[0116] Figure 13 shows an example of the fourth working mode. It is an example of the operation of lowering the flexible container bag 22 filled with ginseng onto the loading platform 50 of a following working vehicle such as a truck equipped with a loading platform 50 for recovering the flexible container bag 22 up to the vicinity of the right side of the ginseng harvester.

[0117] That is, since a following working vehicle such as a truck equipped with a loading platform 50 for recovering the flexible container bag 22 up to the vicinity of the right side of the ginseng harvester comes, the inner table 26a of the mounting table 26 is set to the storage position (A) where it stands vertically and is stored inside the machine body, and the locking pin 39 at the base of the outer table 26b is removed from the locking hole 40 at the tip of the inner table 26a, and the outer table 26b is made to hang downward in a folded state on the outer side of the inner table 26a. The loading platform 50 of the following working vehicle is brought to the vicinity of the right side of the ginseng harvester, and the flexible container bag 22 is lowered onto the loading platform 50 of the following working vehicle in the same manner as in the first working mode.

[0118] Finally, Figure 14 shows a working mode in which the mounting table 26, the movable conveyor 21b, and the operating arm 24 are in the stored state.

[0119] That is, the mounting table 26 is set to the storage position (A) where the inner table 26a of the mounting table 26 stands vertically and is stored inside the machine body, and the outer table 26b inserts the locking pin 39 into the locking hole 40 of the inner table 26a to form the same flat plane as the inner table 26a, so that it is in the storage position where it does not protrude to the right outer side of the machine body.

[0120] The stopper body 29 allows the operator to hold the gripping portion 29b and pivot the stopper body 29 downward so that the pin 31a at the lower end of the oil damper 31 moves to the right fixed groove (storage position fixed groove) 33c at the position of the second groove right stopper (storage position stopper) 33b in the second guide groove 33, and fixes the pin 31a at the lower end of the oil damper 31 in the right fixed groove (storage position fixed groove) 33c.

[0121] Then, the cross-direction operation lever 27 is operated to raise the movable conveyor 21b to the uppermost position and close the rotating arm 24b inside the machine body.

[0122] At this time, since the length of the second guide groove 33 is longer than that of the first guide groove 32, the pin 31a at the lower end of the oil damper 31 can be moved greatly from the slack removal position stopper 32b to the storage position stopper 33b, and the moving device 24 can be moved greatly inward of the machine body so as to enter inside the width of the machine body.

[0123] In this stored state, the width of the machine body is reduced, and traveling on ridges or roads and loading / unloading on trucks can be easily and safely performed with good workability. Also, storing the machine body in a storage shed or the like can save the storage space and can be easily done.

[0124] Even if the operation of pivoting the stopper body 29 upward to release the fixation is forgotten when changing the operating arm 24 from the storage position to the working position from this stored state, when the movable conveyor 21b is lowered from the uppermost position, the convex cam 29c contacts the contact body 35 fixed to the radiator cover 12 at the base, pivoting the stopper body 29 upward, and automatically the pin 31a at the lower end of the oil damper 31 disengages from the right fixed groove (storage position fixed groove) 33c and moves to the second guide groove 33 (Fig. 15).

[0125] Note that Fig. 16 is a table showing the states of the respective members in each working mode.

Explanation of reference numerals

[0126] 21b Movable conveyor 22 Storage member (flexible bag) 24 Moving device (actuating arm) 25 Suspension hanger 26 Mounting table 26a Inner table 26b Outer table 29 Stopper body 30 Guide 31 Biasing member (oil damper) 31a Lower end (pin) 32 First guide groove 32a Stopper (lifting position stopper) 32b Stopper (sagging removal position stopper) 33 Second guide groove 33a Second groove left stopper 33b Stopper (storage position stopper) 34 Communication groove 36 Pivot shaft 37 Pivot shaft 41 Switch mounting stay 42 Middle fold detection switch 42a Detection terminal A Traveling part B Control part C Harvesting part D Conveying part E Storage part (a) Storage position

Claims

1. In a vegetable harvester equipped with a traveling unit (A) for traveling the machine body, a control unit (B), a harvesting unit (C) for harvesting vegetables from a field, a conveying unit (D) for receiving and conveying the vegetables from the harvesting unit (C), and a storage unit (E) for storing the vegetables discharged from the conveying unit (D), a moving device (24) for suspending a storage member (22) for storing the vegetables conveyed from the harvesting unit (C) is provided in the storage unit (E), and a biasing member (31) for eliminating the slack of the upper opening of the storage member (22) is provided in the moving device (24). The base of the moving device (24) is rotatably provided on the end side of the movable conveying conveyor (21b) that moves up and down in the conveying unit (D), and a hanging hanger (25) for suspending the upper part of the storage member (22) that moves up and down and left and right is provided in the moving device (24). A mounting table (26) for receiving the bottom surface of the storage member (22) is provided in the storage unit (E), and a biasing member (31) is provided between the end side of the movable conveying conveyor (21b) and the moving device (24). A stopper body (29) having a guide (30) for slidably guiding the lower end (31a) of the biasing member (31) is provided on the end side of the movable conveying conveyor (21b), and a plurality of stoppers (32a, 32b, 33b) for restricting the sliding movement of the lower end (31a) of the biasing member (31) are provided at the end of the guide (30). A vegetable harvester characterized by this.

2. The guide (30) of the stopper body (29) is composed of a first guide groove (32) having a lifting position stopper (32a) and a slack elimination position stopper (32b) at both ends, a second guide groove (33) having a second groove left stopper (33a) and a storage position stopper (33b) at both ends, and a communication groove (34) communicating the first guide groove (32) and the second guide groove (33). The stopper body (29) is configured to be freely changeable in the vertical position by manual operation, and the lower end (31a) of the biasing member (31) is moved to the first guide groove (32) or the second guide groove (33) by the communication groove (34). The vegetable harvester according to Claim 1, characterized by this.

3. The length of the second guide groove (33) is made longer than the length of the first guide groove (32), and when the moving device (24) is in the storage position, the moving device (24) enters inside the width of the machine body. The vegetable harvester according to Claim 2, characterized by this.

4. The mounting table (26) is composed of an inner table (26a) whose base is rotatably supported by a pivot shaft (36) on the machine body and an outer table (26b) whose base is rotatably supported by a pivot shaft (37) at the tip of the inner table (26a). The inner table (26a) and the outer table (26b) can be changed between a state where they are in the same horizontal plane and a state where the outer table (26b) is bent in the middle. A middle-fold detection switch (42) is provided between the inner table (26a) and the outer table (26b). When the inner table (26a) is rotated inward of the machine body and stored at the storage position (a) and the outer table (26b) is in the middle-fold state, the middle-fold detection switch (42) detects the lower limit position of the movable conveyor (21b). The vegetable harvester according to any one of claims 1 to 3, characterized in that.

5. The middle-fold detection switch (42) is mounted in a state of being protected by a switch mounting stay (41) provided at the tip of the inner table (26a) or the base of the outer table (26b), and the detection terminal (42a) of the middle-fold detection switch (42) protrudes from the switch mounting stay (41). The vegetable harvester according to claim 4, characterized in that.

Images