JP7707927B2 - Vegetable Harvesting Machine - Google Patents

Description

The present invention relates to a vegetable harvester that collects crops from a field and stores them in a storage member such as a flexi-con bag.

Conventionally, there is a root vegetable harvester that extracts and transports root vegetables from a field using an extraction and transport device, and stores the root vegetables in a flexible container bag suspended by a crane installed at the end of the transport path of a sorting and transport device (see, for example, Patent Document 1).

Japanese Patent Application Publication No. 09-271230

However, if there was any slack at the top opening of the FIBC bag, the root vegetables would fall out of the top opening when they were dropped into the FIBC bag, so workers had to manually lift the FIBC bag suspended by the crane each time to remove the slack, and adjust the position of the top opening of the FIBC bag.

The present invention was made in consideration of the above, and aims to provide a vegetable harvester that automatically removes slack from the upper opening of a container such as a flexi-con bag.

The first aspect of the present invention is
The vegetable harvesting machine is equipped with a traveling section (A) for traveling the machine body, a control section (B), a harvesting section (C) for harvesting vegetables from a farm field, a conveying section (D) for taking over and conveying the vegetables from the harvesting section (C), and a storage section (E) for storing the vegetables discharged from the conveying section (D), and is provided with a moving device (24) for suspending a storage member (22) for storing the vegetables conveyed from the harvesting section (C) in the storage section (E), and a biasing member (31) for removing slack in an 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 terminal end side of the movable transport conveyor (21b) which moves up and down in the transport section (D), a hanging hanger (25) which moves up and down and left and right and hangs the upper part of the storage member (22) is provided on the moving device (24), a mounting table (26) which receives the bottom surface of the storage member (22) is provided in the storage section (E), and a biasing member (31) is provided between the terminal end side of the movable transport conveyor (21b) and the moving device (24),
This vegetable harvesting machine is characterized in that a stopper body (29) having a guide (30) that guides the lower end (31a) of the urging member (31) so that it can slide freely is provided on the terminal side of the movable transport conveyor (21b), and a plurality of stoppers (32a, 32b, 33b) that regulate the sliding movement of the lower end (31a) of the urging member (31) are provided at the end of the guide (30).
According to the first aspect of the present invention, when the vegetables transported from the harvesting section C are stored through the upper opening of the storage member 22, the slack in the upper opening of the storage member 22 is automatically removed by the biasing member 31, thereby preventing the vegetables from spilling out of the upper opening of the storage member 22.
The second aspect of the present invention is
This is a vegetable harvester of the first invention, characterized in that 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 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 communicating groove (34) connecting the first guide groove (32) and the second guide groove (33), and the stopper body (29) is configured so that its vertical position can be freely changed 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 communicating groove (34).
The third aspect of the present invention is
This is a second vegetable harvester of the present invention, characterized in that the length of the second guide groove (33) is longer than the length of the first guide groove (32) so that the moving device (24) enters inside the width of the machine body when the moving device (24) is in the stored position.
The fourth aspect of the present invention is
This vegetable harvester is any one of the first to third aspects of the present invention, characterized in that the loading platform (26) is composed of an inner platform (26a) whose base is rotatably supported on the body of the machine by a pivot shaft (36) and an outer platform (26b) whose base is rotatably supported on the tip of the inner platform (26a) by a pivot shaft (37), and the inner platform (26a) and the outer platform (26b) are freely changeable between a state in which they are horizontal, coplanar platforms and a state in which the outer platform (26b) is bent in the middle, a middle-bending detection switch (42) is provided between the inner platform (26a) and the outer platform (26b), and when the inner platform (26a) is rotated inside the machine body to a stored position (i) in which it is stored and the outer platform (26b) is in the middle-bending state, the middle-bending detection switch (42) detects the lower limit position of the movable transport conveyor (21b).
The fifth aspect of the present invention is
This is a fourth vegetable harvester of the present invention, characterized in that the bending detection switch (42) 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), and the detection terminal (42a) of the bending detection switch (42) protrudes from the switch mounting stay (41).
The first invention related to the present invention is a vegetable harvester equipped with a running section A for driving the body of the vehicle, a steering section B, a harvesting section C for harvesting vegetables from a field, a transport section D for taking over the vegetables from the harvesting section C and transporting them, and a storage section E for storing the vegetables discharged from the transport section D, in which a moving device 24 is provided in the storage section E for suspending a storage member 22 for storing the vegetables transported from the harvesting section C, and the moving device 24 is provided with a spring member 31 for taking up slack in the upper opening of the storage member 22.

According to the first invention related to the present invention , a moving device 24 is provided in the storage section E to suspend the storage member 22 that stores the vegetables transported from the harvesting section C, and the moving device 24 is provided with a spring member 31 that takes up slack in the upper opening of the storage member 22. Therefore, when the vegetables transported from the harvesting section C are stored through the upper opening of the storage member 22, the spring member 31 automatically takes up the slack in the upper opening of the storage member 22, preventing the vegetables from spilling out of the upper opening of the storage member 22.

In addition, when the storage member 22 is removed from the moving device 24, the biasing member 31 moves the moving device 24 above the storage member 22, allowing it to be spaced apart so as not to interfere with the storage member 22.

The second invention related to the present invention is a vegetable harvester of the first invention related to the present invention, in which the base of the moving device 24 is freely rotatably arranged on the terminal side of the movable transport conveyor 21b that moves up and down in the transport section D, a hanging hanger 25 that suspends the upper part of the storage member 22 and moves up and down and left and right is provided on the moving device 24, a loading platform 26 that supports the bottom surface of the storage member 22 is provided in the storage section E, and a biasing member 31 is provided between the terminal side of the movable transport conveyor 21b and the moving device 24.

The third invention related to the present invention is a vegetable harvester of the second invention related to the present invention, in which a stopper body 29 having a guide 30 that guides the lower end 31a of the urging member 31 so that it can slide freely is provided at the terminal end side of the movable transport conveyor 21b, and a plurality of stoppers 32a, 32b, 33b that regulate the sliding movement of the lower end 31a of the urging member 31 are provided at the end of the guide 30 .

A fourth invention related to the present invention is a vegetable harvester of the third invention related to the present invention, in which 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 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 communicating groove 34 connecting the first guide groove 32 and the second guide groove 33, and the stopper body 29 is configured so that its vertical position can be freely changed by manual operation, and the lower end 31a of the spring member 31 is moved to the first guide groove 32 or the second guide groove 33 via the communicating groove 34 .

According to the fourth invention related to the present invention , the stopper body 29 is configured to be manually operable in the vertical direction, 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, so that the first guide groove 32 or the second guide groove 33 is manually selected, and malfunction of the work performed by each of the stoppers 32a, 32b, 33b can be prevented. Moreover, the manual selection of the first guide groove 32 or the second guide groove 33 can be easily performed by changing the vertical direction of the stopper body 29.

The fifth invention related to the present invention is a vegetable harvester of the fourth invention related to the present invention, characterized in that the length of the second guide groove (33) is longer than the length of the first guide groove (32 ) so that when the moving device (24) is in the stored position, it is positioned inside the width of the body.

According to the fifth aspect of the present invention , the length of the second guide groove 33 is longer than the length of the first guide groove 32, so that the lower end 31a of the biasing member 31 can be moved significantly from the slack taking up position stopper 32b position to the storage position stopper 33b position to move the moving device 24 significantly toward the inside of the machine body, thereby reducing the width of the machine body and preventing interference with obstacles during travel or storage. Also, when the moving device 24 is stored, it can be placed inside the width of the machine body.

A sixth invention related to the present invention is a vegetable harvester of any one of the second to fifth inventions related to the present invention, in which the loading platform 26 is composed of an inner platform 26a whose base is supported on the body of the machine by a pivot shaft 36 so as to be freely rotatable, and an outer platform 26b whose base is supported at the tip of the inner platform 26a by a pivot shaft 37 so as to be freely rotatable, and the inner platform 26a and the outer platform 26b are freely changeable between a state in which they are horizontal, coplanar platforms, and a state in which the outer platform 26b is bent in the middle, and a middle-bending detection switch 42 is provided between the inner platform 26a and the outer platform 26b, and when the inner platform 26a is rotated inside the machine body to a stored position (i) and the outer platform 26b is in the middle-bent state, the middle-bending detection switch 42 detects the lowest position of the movable transport conveyor 21b .

According to the sixth invention related to the present invention , the loading platform 26 is composed of an inner platform 26a, the base of which is supported on the body of the machine by a pivot shaft 36 so as to be freely rotatable, and an outer platform 26b, the base of which is supported at the tip of the inner platform 26a by a pivot shaft 37 so as to be freely rotatable. The inner platform 26a and the outer platform 26b can be freely changed between a horizontal, coplanar platform and a bent-in position in which the outer platform 26b is bent. A bent-in position detection switch 42 is provided between the inner platform 26a and the outer platform 26b. Therefore, the inner platform 26a can be rotated inside the machine body to a stored position (i) and the outer platform 26b can be set in a bent-in position, and the storage member 22 can be lowered into a narrow field at the edge of the rice paddy.

In addition, when the inner platform 26a is rotated inside the machine to the stored position (A) and the outer platform 26b is in a folded position, the folded position detection switch 42 detects the lowering limit position of the movable transport conveyor 21b, preventing damage due to erroneous operation such as lowering the movable transport conveyor 21b too far.

The seventh invention related to the present invention is a vegetable harvester of the sixth invention related to the present invention, in which the bending detection switch 42 is mounted in a protected state on a switch mounting stay 41 provided at the tip of the inner base 26a or the base of the outer base 26b, and the detection terminal 42a of the bending detection switch 42 protrudes from the switch mounting stay 41.

FIG. 1 is a front view of a carrot harvester according to an embodiment of the present invention. FIG. 2 is an enlarged rear view of the mounting platform 26 of the carrot harvester. FIG. 2 is an enlarged rear view of a main portion of the mounting table 26. FIG. 2 is a rear view for explaining the operation of the carrot harvester. FIG. 2 is an enlarged rear view of the stopper body 29 of the carrot harvester. FIG. 2 is a rear view for explaining the operation of the carrot harvester. FIG. 11 is an enlarged rear view for explaining the operation of the stopper body 29 of the carrot harvester. FIG. 2 is a rear view for explaining the operation of the carrot harvester. FIG. 2 is a rear view for explaining the operation of the carrot harvester. FIG. 2 is a rear view for explaining the operation of the carrot harvester. FIG. 2 is a rear view for explaining the operation of the carrot harvester. FIG. 2 is a rear view for explaining the operation of the carrot harvester. FIG. 2 is a rear view for explaining the operation of the carrot harvester. FIG. 2 is a rear view for explaining the operation of the carrot harvester. FIG. 11 is an enlarged rear view for explaining the operation of the stopper body 29 of the carrot harvester. 13 is a diagram showing the state of each component in each operating mode of the carrot harvester.

A carrot harvester, which is a type of vegetable harvester, will be described as an example of an embodiment of the present invention. In the following, forward and backward directions and left and right directions will be referred to based on the forward direction of the machine body.

<Overall composition>
The carrot harvester is composed of a traveling section A that drives the machine, a control section B on which the operator sits, a harvesting section C that pulls out carrots from the field on one side of the machine body and transports them to the upper rear of the machine body, a transport section D that takes over carrots from the harvesting section C and transports them to the rear of the machine body in a stem and leaf cutting section where the stems and leaves are cut, a remaining leaf processing section that receives carrots that fall from the stem and leaf cutting section and processes the stems and leaves remaining on the carrots, a transport section D that takes over carrots from the remaining leaf processing section and transports them from one side of the machine body to the other side, where an assistant operator sorts the carrots during transport, and a storage section E that places storage members for the carrots discharged from the transport section D.

<Running Part A>
Left and right crawlers 6L, 6R are formed by winding left and right belts 5, 5 around left and right driving 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 below the machine body frame 1, and a plurality of rollers 4 attached between the left and right driving sprockets 2, 2 and the left and right driven wheels 3, 3. The left and right driving sprockets 2, 2 of the left and right crawlers 6L, 6R are attached to left and right drive shafts 2b, 2b extending to the left and right sides from a transmission case 2a to which the engine power is transmitted, and the left and right crawlers 6L, 6R are attached to the machine body frame 1 with a certain left-right gap between them.

<Control Unit B>
A control frame 7 is attached to the upper right side of the machine frame 1, and a control seat 8 is attached to the control frame 7, and a control panel 9 is attached to the front of the machine. A speed change lever 10 for switching between forward and reverse travel and the traveling speed of the machine, and a lift control lever 11 for turning the machine left and right and for controlling the working height of the harvesting section C are attached to the control panel 9, as well as a cross-directional control lever 27 described later.

The control section B is formed by attaching a radiator cover 12, which protects the radiator (not shown) that cools the engine and takes in cooling air, to the other left or right side of the control section frame 7 (right side of the aircraft).

The above configuration allows for the provision of control members such as the gear shift control lever 10 and the lift control lever 11 that can perform multiple operations with a single lever, making it easier to control the aircraft and reducing the workload of the pilot.

<Harvesting Section C>
Left and right driven pulleys are rotatably attached to the front sides of the left and right pulling frames 13, 13, and left and right driving pulleys are attached to the rear sides of the machine, and left and right clamping conveyor belts for pulling out carrots and transporting them to the rear of the machine are wound between the left and right driven pulleys and the left and right driving pulleys, and the left and right clamping conveyor belts are tensioned by a plurality of tension rollers so that the inside surfaces of the left and right clamping conveyor belts are pressed against each other to form a carrot pulling and transporting path R. A rotating frame is attached above the machine frame 1 so as to be rotatable in the vertical direction about left and right horizontal shafts as rotation fulcrums, and a transmission case for transmitting driving force to the left and right driving pulleys is attached to the rear end of the rotating frame so as to be rotatable up and down about the rotation fulcrum. The machine frame 1 and the rotating frame are connected by a lifting cylinder, and the lifting cylinder is attached so as to be operable by the control unit B to form the pulling and transporting device 17.

In addition, a vertical lifting device 18 that lifts the stems and leaves of carrots is provided in front of the pulling and conveying device 17, a horizontal lifting device 19 that scoops up the stems and leaves lifted by the vertical lifting device 18, a grass-splitting rod 20 provided in front of the horizontal lifting device 19, a rotatable gauge wheel that prevents the pulling and conveying device 17 from descending too far, and a left-right vibrating soiler that vibrates back and forth with the driving force of the engine to loosen the soil on the left and right of the carrots buried in the soil.

A tail cutting device that cuts off the roots of carrots being transported by the pulling and conveying device 17 is installed below the pulling and conveying passage R, forming the harvesting section C.

With the above configuration, by providing a horizontal pulling device 19 with a grass-dividing rod 20 on the front side of the machine body and a vertical pulling device 18, harvesting work can be done while raking up the stems and leaves of carrots that have fallen in the field. Since the visibility of the carrots to be harvested is improved, it is easier to align the pulling position, and the amount of crop left behind is reduced, improving work efficiency.

In addition, it prevents carrots from being damaged by contact with the left-right vibrating soy grinder, etc., improving the commercial value of the carrots.

The machine frame 1 and a rotating frame that can rotate up and down around the left and right horizontal axes are connected by a lifting cylinder, and the lifting cylinder is extended and retracted by operating the lifting lever 11 on the steering unit B. This allows the vertical height of the entire harvesting unit C to be adjusted by operating the lifting lever 11, so that the position of the starting end of the harvesting unit C for pulling out can be adjusted up and down, and the position of the starting end of the pulling out can be adjusted to match the appropriate pulling height of the carrots growing in the field, preventing any carrots from being left behind and improving work efficiency.

In addition, if the harvesting section C is raised when turning, the lower end of the harvesting section C is less likely to come into contact with the field, making the turning operation smoother and improving work efficiency.

<Transportation section D>
The sorting and conveying device 21 for sorting work in the conveying section D is arranged in the left-right direction of the machine body from the rear lower part of the pulling and conveying device 17 in the harvesting section C toward the storage section E where the flexi-con bags 22 serving as storage members for storing carrots are located, and is composed of a chain conveyor with bars at regular intervals that rotates by the driving force from the engine. The carrots conveyed by the pulling and conveying device 17 with their stems and leaves clamped are cut at the lower end of the stems and leaves (slightly above the head of the carrot) in the stem and leaf cutting section and the carrots fall downward, but the remaining leaf processing section receives the fallen carrots and processes the stems and leaves remaining on the carrots before conveying them to the conveying section D. The sorting and conveying device 21 in the conveying section D conveys the carrots from their left end to the right (storage section E).

The sorting and conveying device 21 is also composed of a horizontal conveying conveyor 21a that is installed horizontally on the right side of the machine body from the rear lower part of the extraction and conveying device 17 in the harvesting section C, and a movable conveying conveyor 21b that takes over the harvested crops from the right end of the horizontal conveying conveyor 21a and conveys them diagonally upward and to the upper right to the storage section E.

The movable transport conveyor 21b has its left end, which takes over the harvested crops from the right end of the horizontal transport conveyor 21a, supported rotatably by a pivot shaft 21d, and the right end side on the storage section E side moves up and down by the extension and contraction action of the vertical movement electric cylinder 21c, allowing the inclination angle to be changed.

An auxiliary work seat 23 is provided on the rear side of the movable transport conveyor 21b, and a worker seated on the auxiliary work seat 23 removes non-marketable carrots (small carrots or carrots with irregular shapes) from the carrots sent by the movable transport conveyor 21b, and sends only carrots with appropriate market value to the storage section E.

The worker seated on the auxiliary work seat 23 can use the foot-operated up and down switches to extend and retract the vertical movement electric cylinder 21c, causing the right end of the movable transport conveyor 21b to move up and down.

<Storage section E>
The storage section E is located to the right 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 conveyor 21b of the sorting and conveying device 21, and a loading platform 26 on which the flexi-con bag 22 hung from the hanging hanger 25 is placed.

The movable transport conveyor 21b has its left end base pivoted to a rotating support shaft 21d and is provided facing the right end of the machine. It rotates with the driving force from the engine to transport the carrots to the right end and release them downward from the right end. In addition, the piston tip of an electric cylinder 21c for vertical movement, whose base is pivoted to the machine frame 1, is connected to the middle of the movable transport conveyor 21b.

That is, while the operator seated on the auxiliary work seat 23 presses on the up switch, the vertical movement electric cylinder 21c extends and rotates around the pivot shaft 21d to rise, and while the operator presses on the down switch, the vertical movement electric cylinder 21c contracts and rotates around the pivot shaft 21d to fall. Also, when the operator descends into the field and operates the cross-directional operation lever 27 provided on the right end of the operation panel 9 to the right while facing the rear of the machine, the vertical movement electric cylinder 21c extends and rotates around the pivot shaft 21d to rise, and when the operator operates it to the left, the vertical movement electric cylinder 21c contracts and rotates around the pivot shaft 21d to fall.

The hanging hanger 25 moves up and down and left and right by the operating arm 24 attached to the right end of the movable transport conveyor 21b.

The operating arm 24 is pivoted by a pivot shaft 28 arranged in the front-rear direction so that the base can rotate counterclockwise (upward movement) when viewed from behind at the right end of the movable transport conveyor 21b, but the rotation in the clockwise direction (downward movement) stops at a predetermined position. It is composed of a base arm 24a whose tip is extended toward the upper right outside of the machine body, a rotating arm 24b pivoted to the tip of the base arm 24a so as to be freely rotatable, and a rotating electric cylinder 24c arranged between the base arm 24a and the rotating arm 24b as a rotating actuator.

A stopper body 29 is provided on the right end side of the movable transport conveyor 21b, pivoted by a rotating shaft 29a, from the pivot shaft 28 on which the base of the operating arm 24 is pivoted. The upper end of an oil damper 31, which is a biasing member whose lower end pin 31a is slidably engaged with a guide 30 formed on the stopper body 29, is pivoted by a pivot shaft 31b to the middle of the base arm 24a of the operating arm 24.

In addition, instead of the oil damper 31, any other biasing member such as a spring or a leaf spring may be used.

The guide 30 of the stopper body 29 is a crank-shaped guide groove consisting of a first guide groove 32 and a second guide groove 33 extending in the left-right direction of the machine body, and a connecting groove 34 connecting both guide grooves 32, 33.

The left and right ends of the first guide groove 32 serve as 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 serve as 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.

The first guide groove 32 has a left fixing groove (lifting position fixing groove) 32c in the first groove left stopper (lifting position stopper) 32a, which fixes the pin 31a at the lower end of the oil damper 31, and the second guide groove 33 has a right fixing groove (storage position fixing groove) 33c in the second groove right stopper (storage position stopper) 33b, which fixes the pin 31a at the lower end of the oil damper 31.

The stopper body 29 is pivoted on the base side by a rotating support shaft 29a, and is provided so as to be movable up and down within a range in which the pin 31a at the lower end of the oil damper 31 can move to the left fixed groove (lifting position fixed groove) 32c when in the first groove left stopper (hoisting position stopper) 32a position of the first guide groove 32, and within a range in which the pin 31a at the lower end of the oil damper 31 can move to the right fixed groove (storage position fixed groove) 33c when in the second groove right stopper (storage position stopper) 33b position of the second guide groove 33.

A grip portion 29b is provided on the tip side of the stopper body 29, and the operator holds the grip portion 29b at the position of the communication groove 34 and rotates the stopper body 29 up and down around the pivot shaft 29a to switch between a state in which the pin 31a at the lower end of the oil damper 31 moves through the first guide groove 32 and a state in which it moves through the second guide groove 33.

The stopper body 29 is manually rotated up and down 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 through the communication groove 34, so that the first guide groove 32 or the second guide groove 33 is manually selected, and malfunctions in the work performed with each stopper 32a, 32b, 33b can be prevented. Also, the manual 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.

The worker holds the grip 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 fixed groove (lifting position fixed groove) 32c at the first groove left stopper (lifting position stopper) 32a position 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 fixed groove (storage position fixed groove) 33c at the second groove right stopper (storage position stopper) 33b position of the second guide groove 33, thereby fixing the pin 31a at the lower end of the oil damper 31 in each of the left fixed groove (lifting position fixed groove) 32c and the right fixed groove (storage position fixed groove) 33c.

In addition, a convex cam 29c is provided on the base end side of the stopper body 29, and as described in detail in the section <Carrot Harvesting Work> below, when the movable transport conveyor 21b is raised to the highest position and the operating arm 24 is moved to the storage position, the pin 31a at the lower end of the oil damper 31 is fixed in the right fixed groove (storage position fixed groove) 33c. However, even if the operator forgets to rotate 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 transport conveyor 21b is lowered from the highest position, the convex cam 29c comes into contact with the contact body 35, the base of which is fixed to the radiator cover 12, and the stopper body 29 is rotated upward, and the pin 31a at the lower end of the oil damper 31 automatically comes out of the right fixed groove (storage position fixed groove) 33c and moves to the second guide groove 33.

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

The hanging hangers 25 are attached to the front and rear ends of the tip of the rotating arm 24b. The front hanging hanger 25 and the rear hanging hanger 25 have the same configuration and are provided with hooks 25a at their left and right ends. Above the loading platform 26, the four hooks 25a of the front hanging hanger 25 and the rear hanging hanger 25 are each hooked onto the hanging rings 22a sewn on all four sides of the upper edge of the FIBC bag 22 to suspend and support the FIBC bag 22.

The hooks 25a of the front hanging hanger 25 and the rear hanging hanger 25 are pivotally supported at their middle parts on the left and right ends of the front hanging hanger 25 and the rear hanging hanger 25 by pivot shafts 25b, and form a U-shaped hook 25a at the bottom, and a gripping operation part 25c is formed at the top, extending upward.

Tension springs 25d are provided between the left and right ends of the front and rear hanging hangers 25 and the lower U-shaped hooks 25a, and the biasing force of the tension springs 25d causes the tips of the hooks 25a to engage with and close the locking holes 25e.

Therefore, the work of hanging a FIBC bag 22 on the hanging hangers 25 involves first grasping the gripping operation parts 25c of the front and rear hanging hangers 25, and opening the hooks 25a by moving them away from the locking holes 25e against the biasing force of the tension springs 25d, hooking the hanging ring 22a on the upper edge of the FIBC bag 22, releasing the gripping operation parts 25c, and again engaging the tip of the hook 25a with the locking hole 25e to hang it.

In addition, the upper surfaces of the left and right ends of the front and rear hanging hangers 25 are provided with hanging cord locking hooks 25f that lock the hanging cord 22b of the flexi-con bag 22 when it is hung on the upper surfaces of the left and right ends of the front and rear hanging hangers 25.

A cross-directional operation lever 27 is provided at the right end of the operation panel 9. When the operator descends into the field and faces the rear of the machine, operating it to the right will extend the vertical movement electric cylinder 21c and cause the movable transport conveyor 21b to rotate around the pivot shaft 21d and rise; operating it to the left will cause the vertical movement electric cylinder 21c to contract and cause the movable transport conveyor 21b to rotate around the pivot shaft 21d and fall; operating it towards the rear of the machine will cause the pivot electric cylinder 24c to extend and cause the pivot arm 24b to rotate around the pivot shaft and open outward to the right; operating it towards the front of the machine will cause the pivot electric cylinder 24c to contract and cause the pivot arm 24b to rotate around the pivot shaft and close inside the machine to the left.

When operating this cross-directional operation lever 27, if the movable transport conveyor 21b is not in the uppermost position, operating the cross-directional operation lever 27 toward the rear of the machine will not operate the electric rotating cylinder 24c, and the rotating arm 24b will not rotate around the pivot shaft to open to the right outside. In other words, only when the movable transport conveyor 21b is in the uppermost position can the cross-directional operation lever 27 be operated toward the rear of the machine to operate the electric rotating cylinder 24c and rotate the rotating arm 24b around the pivot shaft to open to the right outside.

The mounting platform 26 is composed of an inner platform 26a, the base of which is supported on the aircraft frame 1 by a pivot shaft 36 in the fore-and-aft direction so as to be freely rotatable, and an outer platform 26b, the base of which is supported on the tip of the inner platform 26a by a pivot shaft 37 in the fore-and-aft direction so as to be freely rotatable.

A tension spring 38 is provided between the inner platform 26a and the machine frame 1, and when the tension spring 38 pulls and urges it beyond the pivot shaft 36 (so-called over the fulcrum), the inner platform 26a rotates around the pivot shaft 36 and stands up vertically, and is held in a stored position (A) stored inside the machine, and in a horizontal working position (B).

The outer base 26b is supported at its base by a pivot shaft 37 at the tip of the inner base 26a so that it can rotate freely, and the outer base 26b is flush with the inner base 26a by inserting the locking pin 39 at the base of the outer base 26b into the locking hole 40 at the tip of the inner base 26a.

That is, the inner table 26a is placed in a horizontal working position (b), and the outer table 26b is placed on the same plane as the inner table 26a 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, and the FIBC bag 22 is placed on the upper surface.

In addition, when the inner platform 26a is raised vertically to the storage position (A) and the outer platform 26b is placed on the same plane as the inner platform 26a by inserting the locking pin 39 at the base of the outer platform 26b into the locking hole 40 at the tip of the inner platform 26a, the mounting platform 26 is stored inside the machine body and in a storage position, thereby narrowing the width of the machine body from side to side.

The inner end of an L-shaped switch mounting stay 41 is welded to the end face of the tip of the inner base 26a, and a bend detection switch 42 is attached to the switch mounting stay 41 with screws or the like.

The switch mounting stay 41 is composed of a vertical wall panel 41a on which the folding detection switch 42 is mounted and an upper panel 41b that covers the top of the folding detection switch 42, and functions as a protective member for the folding detection switch 42.

The switch mounting stay 41 is arranged so that the top plate 41b is slightly lower than the top surface of the inner base 26a (5 mm or less lower than the top surface of the inner base 26a), and a U-shaped synthetic resin protector 41c is attached to the tip surface of the top plate 41b.

When the outer base 26b is flush with the inner base 26a by inserting the locking pin 39 at the base of the outer base 26b into the locking hole 40 at the tip of the inner base 26a, a gap W is created between the tip of the protector 41c and the base end face of the outer base 26b, preventing interference between the tip of the protector 41c and the base end face of the outer base 26b due to vibration of the machine body.

The detection terminal 42a of the bend detection switch 42 protrudes outward from the outer end of the switch mounting stay 41, and is turned ON when the outer base 26b is placed flush with the inner base 26a by inserting the locking pin 39 into the locking hole 40 at the tip of the inner base 26a.

Therefore, the bent-over detection switch 42 can determine whether the inner base 26a and the outer base 26b of the mounting base 26 are flush with each other, or whether the outer base 26b is bent over the inner base 26a.

In addition, a storage detection switch 43 that is turned ON when it comes into contact with the base end face of the inner platform 26a is provided at a position facing the base end face of the inner platform 26a of the aircraft frame 1.

The storage detection switch 43 therefore detects when the inner platform 26a reaches the horizontal working position (B) and turns ON, and turns OFF when the inner platform 26a rotates around the pivot shaft 36 and stands vertically inside the aircraft, reaching the storage position (A).

The status of the mounting platform 26 is displayed on a monitor installed on the operation panel 9, allowing the operator to see the status of the mounting platform 26 at a glance, preventing operational errors and improving workability.

For example, when the storage detection switch 43 is ON and the bend detection switch 42 is ON, the inner table 26a and the outer table 26b are displayed as being horizontal and flush with each other. When the storage detection switch 43 is ON and the bend detection switch 42 is OFF, the inner table 26a is displayed as being in a horizontal working position (B) and the outer table 26b is displayed as being in a bent bend.

In addition, when the inner platform 26a of the loading platform 26 is vertically raised and stored inside the machine in the storage position (A) and the outer platform 26b is in a bent state, the storage detection switch 43 is OFF and the bent detection switch 42 is OFF. In this state, the bent detection switch 42 is located below the movable transport conveyor 21b, so the bent detection switch 42 also serves as a detection switch for the lowering limit of the movable transport conveyor 21b.

In other words, when the storage detection switch 43 and the bend detection switch 42 are both OFF and the bend detection switch 42 is turned ON, the descent of the movable transport conveyor 21b is forcibly stopped. This is to prevent the movable transport conveyor 21b from descending too far when the inner platform 26a of the loading platform 26 is vertically raised and stored inside the machine in the storage position (A) and the outer platform 26b is in a bent bend, and the cross-directional control lever 27 is operated to lower the flexi-con bag 22 filled with harvested carrots into the field, thereby preventing damage and other problems from occurring.

In the above example, the bend detection switch 42 is attached to the switch attachment stay 41 at the tip of the inner base 26a, but the bend detection switch 42 may be attached to the switch attachment stay 41 by providing the switch attachment stay 41 at the base of the outer base 26b.

<Carrot harvesting work>
First, as shown in Figure 4, the loading platform 26 is brought into use with the inner platform 26a and the outer platform 26b being horizontally coplanar and extending horizontally toward the right outer side of the body, and is placed in a position to receive the bottom of the flexi-con bag 22 suspended from the hanging hanger 25.

Then, hold the grip portion 29b of the stopper body 29 and switch the pin 31a at the lower end of the oil damper 31 to a state in which it moves through the first guide groove 32.

Then, operate the cross-directional control lever 27 to bring the movable transport conveyor 21b to its lowest position with the pivot arm 24b closed inside the left machine body.

At this time, the stopper body 29 is inclined so that the right side is lower, so that the pin 31a at the lower end of the oil damper 31 abuts against the first groove right stopper (slack removal position stopper) 32b of the first guide groove 32 (Figure 5), and the oil damper 31 urges the operating arm 24 in the direction of rotating upward.

The flexi-con bag 22 is suspended by hooking the hanging rings 22a sewn to the four sides of the upper edge of the flexi-con bag 22 onto the hooks 25a of the hanging hanger 25, so that the bottom of the flexi-con bag 22 is supported on the mounting table 26.

At this time, the hanging hanger 25 is pivotally supported at its left-right center by the pivot shaft 24d at the tip of the operating arm 24 so that it can rotate freely. By setting the hanging hanger 25 so that the outside of the machine body is higher, the carrots that fall into the flexi-con bag 22 from the right end of the movable transport conveyor 21b can be prevented from flying outward.

Then, the operator seated in the driver's seat 8 advances the carrot harvester, aligning the front end of the extraction transport path R of the extraction transport device 17 of the harvesting section C with the carrot rows in the field, then operates the lifting operation lever 11 to lower the harvesting section C, and turns on the digging clutch to drive each section and move forward. Then, the weeding rod 20, vertical lifting device 18, and horizontal lifting device 19 rake up the carrot stems and leaves, clamping them on the extraction transport path R of the extraction transport device 17, and the left and right vibrating soiler loosens the soil to the sides and below the carrots. The carrots are then clamped and pulled out by the extraction transport device 17 and transported upward and rearward.

Then, the carrots that have been conveyed by the pulling and conveying device 17 with their stems and leaves clamped are cut at the stem and leaf cutting section at their lower ends (slightly above the top of the carrot) and the carrots fall downward. The carrots that fall are received by the remaining leaf processing section, which processes the remaining stems and leaves on the carrots before conveying them to conveying section D. The carrots are then conveyed from their left end to the right (storage section E) by the movable conveyor 21b of conveying section D.

At this time, a worker seated on the auxiliary work seat 23 at the rear of the movable transport conveyor 21b removes non-marketable carrots (small carrots or carrots with irregular shapes) from the carrots being transported by the movable transport conveyor 21b, and only the carrots with marketable value are sent to the storage section E.

The carrots sent to the right end by the movable transport conveyor 21b drop into and are stored in the flexible container bags 22 hung from the hooks 25a of the hanging hangers 25 at the right end of the movable transport conveyor 21b.

As the amount of carrots stored in the flexi-con bag 22 increases, the worker seated on the auxiliary work seat 23 presses the lift switch to extend the vertical movement electric cylinder 21c, causing the movable transport conveyor 21b to rotate around the pivot shaft 21d and gradually rise.

At this time, the operating arm 24 to which the hanging hanger 25 from which the FIBC bag 22 is attached is biased by the oil damper 31 in a direction that rotates upward, so that the slack in the FIBC bag 22 above the carrots stored in the FIBC bag 22 is taken up and the upper opening of the FIBC bag 22 automatically rises, appropriately preventing the carrots from flying out and spilling out when they fall into the FIBC bag 22 from the right end of the movable transport conveyor 21b.

Then, the movable transport conveyor 21b rotates about the pivot shaft 21d and moves upward until the flexi-con bag 22 is filled with carrots, and the operator stops driving the machine and stops it.

The operator seated in the auxiliary work seat 23 leaves the auxiliary work seat 23, descends to the field, stands near the right end of the control panel 9, and operates the cross-directional control lever 27 while facing toward the rear of the machine.

First, the cross-directional control lever 27 is moved to the right to extend the vertical movement electric cylinder 21c and raise the movable transport conveyor 21b to its highest position, lifting the flexi-con bag 22 above the platform 26 as shown in FIG. 6.

At this time, the stopper body 29 is inclined so that the right side is higher, so the pin 31a at the lower end of the oil damper 31 moves leftward in the first guide groove 32 and comes into contact with the first groove left stopper (lifting position stopper) 32a (Figure 7), and the oil damper 31 urges the operating arm 24 in a direction that rotates it upward.

Then, the cross-directional control lever 27 is operated toward the rear of the machine to extend the electric rotating cylinder 24c, causing the rotating arm 24b to rotate about the pivot shaft and open to the right outside, and the FIBC bag 22 is moved to the right outside of the loading platform 26 as shown in Figure 8.

Then, the cross-directional control lever 27 is operated to the left to contract the vertical movement electric cylinder 21c and lower the movable transport conveyor 21b to its lowest position, and the flexi-con bag 22 is lowered into the field as shown in Figure 9.

When an accompanying work vehicle such as a truck equipped with a loading platform for collecting the FIBC bag 22 travels alongside the right side of the carrot harvester, the FIBC bag 22 is unloaded onto the loading platform of the accompanying work vehicle.

Then, grasp the gripping operation portion 25c of each hanging hanger 25 and move the hook 25a away from the locking hole 25e against the biasing force of the tension spring 25d, and release it from the hanging ring 22a at the upper edge of the FIBC bag 22.

Then, when the hooks 25a of each hanging hanger 25 are removed from the hanging rings 22a at the upper edge of the flexi-con bag 22, as shown in FIG. 10, the oil damper 31 biases the operating arm 24 in a direction that rotates it upward, so that each hanging hanger 25 automatically moves away above the flexi-con bag 22 and does not interfere with the flexi-con bag 22.

Next, the cross-directional control lever 27 is operated to return the movable transport conveyor 21b to its lowest position with the first pivot arm 24b closed inside the left machine body, and the hanging rings 22a sewn to the four sides of the upper edge of the empty FIBC bag 22 are hooked onto the hooks 25a of the hanging hanger 25 to suspend the FIBC bag 22 so that the bottom of the FIBC bag 22 is supported on the loading platform 26 (Figure 4), after which the operator sits on the auxiliary work seat 23. Then, the various parts are driven to move the machine forward and harvesting work is resumed.

The hanging hanger 25 therefore moves up and down and left and right by the operating arm 24 attached to the right end of the movable transport conveyor 21b, so that the flexi-con bag 22 placed on the platform 26 while suspended from the hanging hanger 25 can be lifted above the platform 26 by the operating arm 24 and lowered into the field at a position on the right outer side of the platform 26. Even if the flexi-con bag 22 lowered into the field tilts or the machine meanders slightly, the flexi-con bag 22 can be prevented from coming into contact with the machine, and good and proper harvesting work can be carried out.

If the FIBC bag 22 cannot be lowered to the side of the machine body because of obstacles such as ridges or walls on the side of the ridges at the edge of the field, the cross-directional control lever 27 is operated to lift the FIBC bag 22 above the loading platform 26, and the inner platform 26a of the loading platform 26 stands up vertically and is stored inside the machine body in the storage position (A), while the outer platform 26b is bent in a folded-over state (for example, the state of the loading platform 26 in Figure 13), releasing the lower part of the FIBC bag 22.

Then, the cross-directional control lever 27 is operated to the left to contract the vertical movement electric cylinder 21c and lower the movable transport conveyor 21b to its lowest position, and the flexi-con bag 22 is lowered into the field at the loading platform 26.

At this time, the inner platform 26a of the loading platform 26 stands vertically and is stored inside the machine in the storage position (A), while the outer platform 26b is in a bent state, so the bent detection switch 42 is located below the movable transport conveyor 21b and can also serve as a detection switch for the lowering limit of the movable transport conveyor 21b.

Thus, even if the storage detection switch 43 is OFF and the bend detection switch 42 is OFF, when the movable transport conveyor 21b descends and comes into contact with the bend detection switch 42, turning the bend detection switch 42 ON, the descent of the movable transport conveyor 21b is forcibly stopped, preventing the movable transport conveyor 21b from descending too far and preventing malfunctions such as breakage.

Then, grasp the gripping operation portion 25c of each hanging hanger 25 and move the hook 25a away from the locking hole 25e against the biasing force of the tension spring 25d, and release it from the hanging ring 22a at the upper edge of the FIBC bag 22.

In this way, if the FIBC bag 22 cannot be lowered to the side of the machine body because of obstacles such as ridges or walls on the side of the ridges at the edge of the field, the cross-directional operating lever 27 can be operated to lift the FIBC bag 22 above the loading platform 26, and the inner platform 26a of the loading platform 26 stands up vertically and is stored inside the machine body in the storage position (A), and the outer platform 26b is bent in a folded state to release the bottom of the FIBC bag 22, allowing the FIBC bag 22 to be lowered into the field at the loading platform 26.

Next, we will explain other work modes other than the first work mode described above.

Figure 11 shows an example of the second operation mode, in which the flexi-con bag 22 filled with carrots is lifted upward from the platform 26 using the hanging cord 22b of the flexi-con bag 22.

That is, the worker holds the grip portion 29b of the stopper body 29 and rotates the stopper body 29 upward so that the pin 31a at the bottom end of the oil damper 31 moves to the left fixing groove (lifting position fixing groove) 32c at the first groove left stopper (lifting position stopper) 32a position of the first guide groove 32, and fixes the pin 31a at the bottom end of the oil damper 31 in the left fixing groove (lifting position fixing groove) 32c.

Then, the cross-directional operation lever 27 is operated to slightly lower the movable transport conveyor 21b to loosen the lifting state, and the gripping operation part 25c is operated to remove each hook 25a of the hanging hanger 25 from the hanging ring 22a at the upper edge of the FIBC bag 22, and the hanging cord 22b is hung on each hanging cord engaging hook 25f of the hanging hanger 25. The cross-directional operation lever 27 is operated to the right to extend the vertical movement electric cylinder 21c to raise the movable transport conveyor 21b to the raised position, and the FIBC bag 22 is lifted above the loading platform 26.

The movement of the flexi-con bag 22 after it has been lifted above the platform 26 is the same as in the first operating mode.

For FIBC bags 22 that do not have hanging loops 22a, all work is performed by hanging the hanging cords 22b on the hanging cord hooks 25f of the hanging hangers 25.

Figure 12 shows an example of the third operation mode, which is an example of unloading a flexi-con bag 22 filled with carrots onto the ridge.

That is, when carrots are harvested on the ridges at the edge of a field and the FIBC bag 22 is lowered on the ridge immediately beside the ridge, if the inner platform 26a and the outer platform 26b of the loading platform 26 are on the same plane, the machine body protrudes too far to the right and the machine cannot be brought close to the ridge. Therefore, the inner platform 26a is placed in the horizontal working position (B), and the outer platform 26b is placed in a bent-over state with the locking pin 39 at the base of the outer platform 26b removed from the locking hole 40 at the tip of the inner platform 26a, so that the machine body is brought as close as possible to the ridge, and then the FIBC bag 22 is lowered onto the ridge in the same manner as in the first working mode.

Figure 13 shows an example of the fourth operation mode, in which the FIBC bag 22 filled with carrots is unloaded onto the loading platform 50 of an accompanying work vehicle such as a truck equipped with a loading platform 50 for collecting the FIBC bag 22 when the accompanying work vehicle approaches the right side of the carrot harvester.

That is, when an accompanying work vehicle such as a truck equipped with a loading platform 50 for collecting the FIBC bag 22 approaches near the right side of the carrot harvester, the inner platform 26a of the loading platform 26 is raised vertically and stored inside the machine in a storage position (A), the outer platform 26b is placed in a folded-over state hanging downward on the outside of the inner platform 26a by disengaging the locking pin 39 at the base of the outer platform 26b from the locking hole 40 at the tip of the inner platform 26a, and the loading platform 50 of the accompanying work vehicle approaches a position near the right side of the carrot harvester, and the FIBC bag 22 is lowered onto the loading platform 50 of the accompanying work vehicle in the same manner as in the first working mode.

Finally, Figure 14 shows the operating form in which the loading platform 26, the movable transport conveyor 21b, and the operating arm 24 are stored.

In other words, when the mounting platform 26 is in the storage position (A) where the inner platform 26a of the mounting platform 26 stands vertically and is stored inside the aircraft, the outer platform 26b is flush with the inner platform 26a by inserting the locking pin 39 into the locking hole 40 of the inner platform 26a, and is in the storage position where it does not protrude outward to the right outside of the aircraft.

The operator holds the grip 29b of the stopper body 29 and rotates it downward so that the pin 31a at the bottom end of the oil damper 31 moves to the right fixed groove (storage position fixed groove) 33c at the second groove right stopper (storage position stopper) 33b position of the second guide groove 33, and fixes the pin 31a at the bottom end of the oil damper 31 in the right fixed groove (storage position fixed groove) 33c.

Then, the cross-directional control lever 27 is operated to raise the movable transport conveyor 21b to its highest position and close the pivot arm 24b inside the machine body.

At this time, since the length of the second guide groove 33 is longer than the length of the first guide groove 32, the pin 31a at the lower end of the oil damper 31 can be moved significantly from the slack removal position stopper 32b position to the storage position stopper 33b position, and the moving device 24 can be moved significantly toward the inside of the aircraft, so that it is inside the width of the aircraft.

When in this stored state, the width of the machine is reduced, making it easy and safe to drive on ridges or roads and to load and unload onto trucks with good workability, and storing the machine in a barn or other place saves storage space and is easy.

Even if you forget to rotate the stopper body 29 upward to release it when moving the operating arm 24 from the storage position to the working position from this stored state, when the movable transport conveyor 21b is lowered from the highest position, the convex cam 29c comes into contact with the abutment body 35, the base of which is fixed to the radiator cover 12, rotating the stopper body 29 upward, and the pin 31a at the lower end of the oil damper 31 automatically comes out of the right fixing groove (storage position fixing groove) 33c and moves to the second guide groove 33 (Figure 15).

Figure 16 is a table showing the state of each component in each work mode.

21b Movable transport conveyor 22 Storage member (flexible container bag)
24 Moving device (operating arm)
25 Hanging hanger 26 Placement base 26a Inner base 26b Outer base 29 Stopper body 30 Guide 31 Pressing member (oil damper)
31a Lower end (pin)
32 First guide groove 32a Stopper (lifting position stopper)
32b Stopper (slack 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 Center bending detection switch 42a Detection terminal A Travel section B Steering section C Harvesting section D Transport section E Storage section (a) Storage position

Claims (5)

The vegetable harvesting machine is equipped with a traveling section (A) for traveling the machine body, a control section (B), a harvesting section (C) for harvesting vegetables from a farm field, a conveying section (D) for taking over and conveying the vegetables from the harvesting section (C), and a storage section (E) for storing the vegetables discharged from the conveying section (D), and is provided with a moving device (24) for suspending a storage member (22) for storing the vegetables conveyed from the harvesting section (C) in the storage section (E), and a biasing member (31) for removing slack in an 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 terminal end side of the movable transport conveyor (21b) which moves up and down in the transport section (D), a hanging hanger (25) which moves up and down and left and right and hangs the upper part of the storage member (22) is provided on the moving device (24), a mounting table (26) which receives the bottom surface of the storage member (22) is provided in the storage section (E), and a biasing member (31) is provided between the terminal end side of the movable transport conveyor (21b) and the moving device (24),
A vegetable harvester characterized in that a stopper body (29) having a guide (30) for guiding the lower end (31a) of a urging member (31) so as to be freely slidable is provided on the terminal side of a movable transport conveyor (21b), and a plurality of stoppers (32a, 32b, 33b) for regulating the sliding movement of the lower end (31a) of the urging member (31) are provided at the end of the guide (30) . The vegetable harvester of claim 1, characterized in that 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 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 communicating groove (34) connecting the first guide groove (32) and the second guide groove (33), and the stopper body (29) is configured so that its vertical position can be freely changed 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 communicating groove ( 34 ). 3. A vegetable harvester as claimed in claim 2, characterized in that the length of the second guide groove (33) is made longer than the length of the first guide groove (32) so that when the moving device (24) is in the stored position, it is positioned inside the width of the body of the vegetable harvester. 4. The vegetable harvester according to claim 1, wherein the mounting table (26) is composed of an inner table (26a) whose base is rotatably supported on the body of the vehicle by a pivot shaft (36) and an outer table (26b) whose base is rotatably supported on a pivot shaft (37) at the tip of the inner table (26a), and the inner table (26a) and the outer table (26b) are freely changeable between a state in which they are horizontal and coplanar and a state in which the outer table (26b) is bent in the middle, and a middle-bending detection switch (42) is provided between the inner table (26a) and the outer table (26b), and when the inner table (26a) is rotated inside the vehicle body to a stored position ( A ) and the outer table (26b) is in the middle-bending state, the middle-bending detection switch ( 42 ) detects the lower limit position of the movable transport conveyor (21b). A vegetable harvester as described in claim 4, characterized in that the bending detection switch (42) 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), and the detection terminal (42a) of the bending detection switch (42) protrudes from the switch mounting stay ( 41 ).