JP7144845B2 - harvester - Google Patents

Description

The present invention relates to harvesters for crops. In particular, it relates to a deep-rooted green onion harvester.

Conventionally, self-propelled green onion harvesters have been widely used in order to automate the harvesting of deep-rooted green onions (also referred to as long green onions and white green onions; hereinafter simply referred to as "green onions"). The green onion harvester digs up the green onions planted in the ridges of the field, and can automatically remove the soil attached to the roots and cut the roots along the route to transport them to the storage unit behind the harvester. It is a work machine. By using a green onion harvester, a series of operations from digging up green onions to storing them in a container can be performed continuously, and the harvesting efficiency of green onions can be greatly improved.

For example, Patent Literature 1 discloses a spring onion harvester having a workbench and a container mounting table as storage units. By equipping the green onion harvester with the container mounting table, the operator can move the container holding the green onions on the work table onto the container mounting table. Then, when the container containing the green onions cannot be placed on the container mounting table, the worker can place the containers containing the green onions from the container mounting table collectively in a field or on the ground at one place. Therefore, by equipping the green onion harvester with the container mounting table, it is possible to improve the efficiency of the worker's work of stacking and transporting the containers containing the green onions on a transport vehicle or the like. Further, Patent Literature 2 discloses an agricultural crop harvester provided with a container mounting table which is provided so as to be able to move up and down with respect to a working machine. By equipping the crop harvester with a container mounting table that can be raised and lowered, an operator can lift and lower the container mounting table to fix the container mounting table to an appropriate height and perform work. Furthermore, Patent Document 3 discloses a work table provided with a mounting surface that moves up and down according to the weight of a heavy object to be placed.

JP-A-11-220917 JP 2003-79216 A Japanese Patent No. 2774957

There is a large step between the work surface of the work table and the mounting surface of the container mounting table described in Patent Document 1. Therefore, the worker needs to once lift the container containing the scallions on the workbench, or move the container while paying attention to the steps. That is, since the worker cannot continuously move the container containing the green onions from the work table to the container placing table, there is a possibility that the work efficiency and safety of the worker are lowered. In addition, the container mounting table described in Patent Document 2 is mounted on a container table mounting frame which is provided so as to be able to move up and down via a lifting cylinder along a pair of left and right guide column frames attached to the machine body in the vertical direction. It is attached so that it can move up and down. Therefore, the vertical movement of the container table is complicated. Further, when moving a container containing agricultural products from a work table to a container mounting table, it is necessary to move the container while paying attention to the guide column frame, the lifting cylinder, and the container table mounting frame. In other words, the structure provided with the container mounting table is complicated, and workers may not be able to smoothly move containers containing agricultural products, which may reduce the work efficiency and safety of workers. rice field. Furthermore, the liftable workbench described in Patent Document 3 is supported by a relatively large supporting member on a base provided with casters. Further, the base with casters and the supporting member are provided near the operator's feet and feet. That is, there is a possibility that the construction of the work machine becomes complicated and large at and near the feet of the worker, and the working efficiency and safety of the worker are lowered.

One of the objects of the present invention is to provide a harvester that improves the working efficiency of workers. Another object of the present invention is to provide a harvester that allows a worker to work safely.

A harvesting machine according to an embodiment of the present invention includes a machine body, a first conveying device provided in front of the machine body for carrying the roots of crops on it, and a first conveying device provided above the first conveying device to clamp foliage of the crops. a second conveying device for conveying rearwardly, a workbench provided behind the second conveying device for storing the agricultural products conveyed by the second conveying device, a parallel link mechanism provided behind the workbench, and a telescopic mechanism. a mounting table that is connected to the machine body by a member and that is vertically provided by the parallel link mechanism and the expansion member.

In plan view, the parallel link mechanism may be arranged to be deviated to one side with respect to the central axis of the mounting table.

The height of the mounting table may be changed by changing the attachment position of the expansion/contraction member to the parallel link mechanism and/or the attachment position of the expansion/contraction member to the body.

The mounting table may be raised and lowered by the weight of the storage member and/or the crops placed on the mounting table.

The mounting table may be provided with a rotating roller in a direction substantially perpendicular to the central axis of the machine body.

ADVANTAGE OF THE INVENTION According to one Embodiment of this invention, the harvester which improves a worker's work efficiency can be provided. Moreover, according to one embodiment of the present invention, it is possible to provide a harvester that allows a worker to work safely.

BRIEF DESCRIPTION OF THE DRAWINGS It is the top view which looked at the structure of the green onion harvester which concerns on 1st Embodiment. It is the side view which looked at the structure of the green onion harvester which concerns on 1st Embodiment from the left. It is the figure which looked at the structure of the green onion harvester which concerns on 1st Embodiment from the back. It is the side view which looked at the structure of the green onion harvester which concerns on 1st Embodiment from the left. It is the top view which looked at the structure of the green onion harvester which concerns on 2nd Embodiment. It is the side view which looked at the structure of the green onion harvester which concerns on 2nd Embodiment from the left. It is the figure which looked at the structure of the green onion harvester which concerns on 2nd Embodiment from the back.

Hereinafter, embodiments of the harvester of the present invention will be described with reference to the drawings. However, the harvester of the present invention can be embodied in many different forms and should not be construed as limited to the description of the examples given below. In the drawings referred to in this embodiment, the same parts or parts having similar functions are denoted by the same reference numerals, and repeated description thereof will be omitted.

In the specification and claims of the present application, "up" indicates a direction away from the field in a substantially vertical direction, and "down" indicates a direction in which the field approaches the field in a substantially vertical direction. Also, "front" indicates the direction in which the harvester travels, and "rear" indicates the direction opposite to the front. Also, "left" indicates the left when facing the direction in which the harvester advances, and "right" indicates the direction opposite to the left.

In the following embodiments, a green onion harvester is exemplified as an example of a harvester for crops, but the invention is not limited to this. That is, the harvester described in the following embodiments may be a harvester for harvesting crops other than scallions. For example, it can be used as a harvester for harvesting crops that are long and have roots at their ends.

1. First Embodiment 1-1. Configuration of Green Onion Harvester A schematic configuration of a green onion harvester according to a first embodiment of the present invention will be described with reference to FIGS. 1 and 2. FIG. FIG. 1 is a top plan view of the configuration of the green onion harvester according to the first embodiment. FIG. 2 is a left side view of the configuration of the green onion harvester according to the first embodiment. As shown in FIGS. 1 and 2, the green onion harvester 10 of the present embodiment roughly includes a driving section 100, a working section 200, a conveying section 300, a supporting section 400, and a storage section 500.

Drive unit 100 includes body 110 and traveling device 120 . The body 110 is equipped with an engine 112 that serves as a drive source for the green onion harvester 10 and functions as a main body of the green onion harvester 10 . An upper portion of the fuselage 110 functions as a workbench 114 . On the workbench 114 , the worker binds the scallions transported by the transport unit 300 or gathers them into a predetermined amount and stores them in storage members placed in the storage unit 500 . Note that the drive unit 100 may also be called a self-propelled machine. The storage member is a member capable of storing agricultural products, such as a container (not shown) or a net (not shown).

The travel device 120 is a mechanism that is arranged below the machine body 110 and allows the green onion harvester 10 to travel by itself. The traveling device 120 in this embodiment is a pair of crawlers arranged below the left and right ends of the body 110 . The travel device 120 includes a transmission 122 provided in the lower portion of the fuselage 110 and is driven by the transmission 122 to change speed. It should be noted that the travel device 120 is not limited to crawlers, and wheels such as tires can also be used.

The working part 200 is a part where a worker performs a green onion harvesting operation. The work section 200 includes a control section 210 , a work step 220 , an auxiliary step 230 and a seat 240 . The operation unit 210 is a part for operating the green onion harvester 10 and can operate the drive unit 100 and the transport unit 300 . A worker can operate the green onion harvester 10 or perform harvesting work on the workbench 114 while sitting on the swivel seat 240 . The working step 220 and the auxiliary step 230 function as scaffolding to allow the operator to move forward and backward.

The conveying unit 300 is a mechanism that digs up the green onions planted in the ridges of the field and carries the dug up green onions backward while removing soil attached to the roots and cutting the roots. The conveying unit 300 includes a first conveying device 310 that carries the root of the green onion and conveys it backward, a second conveying device 320 that clamps the foliage of the green onion and conveys it backward, and removes the soil adhering to the foliage and root of the green onion. It includes a first dirt removing part 330 and a second dirt removing part 340 for dropping. The conveying unit 300 is provided in front of the driving unit 100 and continuously performs a series of operations such as digging up green onions, removing soil, and cutting roots in accordance with the progress of the traveling device 120 of the driving unit 100 .

The first conveying device 310 is arranged in front of the fuselage 110 . In this embodiment, the first conveying device 310 is an endless bar conveyor having a digging blade 311 at its tip. The digging blade 311 digs up green onions from the ground as the green onion harvester 10 advances. The dug up green onions are transported backward while maintaining a vertical posture with their roots placed on the bar conveyor. A rear end portion of the first conveying device 310 is rotatably connected to the body 110 via a shaft. A hydraulic cylinder 312 is provided between the first transport device 310 and the body 110 , and the vertical rotation of the first transport device 310 is controlled by the expansion and contraction of the hydraulic cylinder 312 .

The second transport device 320 is arranged above the first transport device 310 . The second conveying device 320 has a pair of left and right first conveying belts 321a and 321b for holding and conveying the foliage of green onions in a vertical posture, and facing each other such that the facing surfaces of the first conveying belts 321a and 321b are close to each other. It includes a plurality of sets of rollers 322a and 322b acting behind the face. The first conveying belts 321a and 321b are longer than the first conveying device 310, and hold the green onions in a vertical posture while holding the stems and leaves of the green onions. near side) can be conveyed.

The second conveying device 320 further includes a pair of left and right second conveying belts 323a and 323b that are continuous with the end portions of the first conveying belts 321a and 321b. The second conveying belts 323 a and 323 b receive the green onions conveyed by the first conveying belts 321 a and 321 b and convey the green onions to the vicinity of the workbench 114 of the machine body 110 . In this conveying process, the second conveying belts 323a and 323b sequentially twist the posture of the green onions from the vertical posture to the oblique horizontal posture. That is, at the front ends of the second conveying belts 323a and 323b, the stems and leaves of the green onions are held in a vertical posture, and at the rear ends, the stems and leaves of the green onions are held obliquely laterally by twisting the second conveying belts 323a and 323b. It is configured to be clamped in a posture. A third conveying belt 324 is arranged near the end portions of the second conveying belts 323a and 323b so that the scallions can be conveyed backward while supporting the leaf portions of the scallions in an oblique horizontal posture. .

The front end of the second transfer device 320 is connected to the tip of the link arm 325 and the rear end is connected to the fuselage 110 via the link arm 326 . When the tip side of the first transfer device 310 rotates up and down due to the expansion and contraction of the hydraulic cylinder 312, the link arms 325 and 326 also move the second transfer device 320 backward. In this manner, the first conveying device 310 and the second conveying device 320 rotate in conjunction with each other, but the link arms 325 and 326 keep a predetermined distance therebetween.

Both the first soil removing unit 330 and the second soil removing unit 340 described above are arranged below the second conveying device 320 . The first soil removing unit 330 is composed of a pair of rotating bodies arranged across the movement path of the stems, leaves and roots of the green onion conveyed in a vertical posture. The first soil removing unit 330 rotates to apply a plurality of projecting members of the rotating body to the foliage or root of the scallion to remove the soil adhering to the foliage or root. A detailed structure of the first soil removing part 330 will be described later.

The second soil removing unit 340 is a rotating body arranged behind the first soil removing unit 330, and is arranged on or slightly below the movement path of the roots of green onions conveyed in a vertical posture. The second soil removing unit 340 rotates to apply a plurality of annular plates of the rotating body to the roots of the scallion to remove soil adhering to the roots. A detailed structure of the second soil removing part 340 will be described later.

The support section 400 includes a pair of left and right support arms 410 arranged side by side with a first transport device 310 , wheels 420 attached to the tips of the support arms 410 , and wheels 420 and the first transport device 310 . Including disc 430 provided therebetween. The wheels 420 have the function of adjusting the vertical position of the first conveying device 310, and follow the ridges for moving the machine body 110 along the ridges in contact with the inclined portions (shoulders) of the ridges formed in the field. It also functions as a device. The vertical position of the first transfer device 310 can be adjusted by the hydraulic cylinder 440 . The disk 430 is positioned to abut the slope of the ridge and serves to break up the slope of the ridge.

The storage section 500 includes a first mounting table 510 , a parallel link mechanism 520 , a support member 530 and a second mounting table 540 . The first mounting table 510 is a table on which a storage member such as a container for storing harvested green onions or a net is placed, and is located behind the work table 114 . One end of the first mounting table 510 is rotatably connected to the body 110 so that the first mounting table 510 can be lifted upward. In addition, a plurality of rollers 510a are arranged on the work surface of the first mounting table 510 of the present embodiment. In addition, the plurality of rollers 510a are orthogonal or substantially orthogonal to the central axis 511 of the green onion harvester 10 and the central axis 512 of the first mounting table 510, and are symmetrical with respect to the central axis 512 of the first mounting table 510. are arranged so that Therefore, the worker can move the storage member such as the container storing the scallions in the front-rear direction with respect to the first mounting table 510 with little force. A stopper 514 is arranged on the right side of the first mounting table 510 . The stopper 514 allows the worker to prevent the storage member such as the container storing the scallion from falling or being displaced.

Also, the first mounting table 510 is connected to the body 110 via a parallel link mechanism 520 and an elastic member. The parallel link mechanism 520 has, for example, a first link portion 521a and a second link portion 521b. The first link portion 521a is composed of a link member 520a, a link member 520b, a connecting member 526a and a connecting member 528a. The second link portion 521b is composed of a link member 520c, a link member 520d (FIG. 3), a connecting member 526b (FIG. 3) and a connecting member 528b (FIG. 3). With this configuration, when a storage member (not shown) is placed on the first placement table 510, the first placement table 510 moves downward due to the weight of the storage member (or the weight of the storage member and the green onion). do. Therefore, by adjusting the urging force of the expandable member so that the working surface of the first table 510 is positioned just around the waist of the operator, the efficiency of the scallion storage operation can be improved. Note that the expandable member is, for example, a gas spring 522, a coil spring, or the like. In one embodiment of the present invention, the elastic member is illustrated as a gas spring 522 . Details of the first mounting table 510, the parallel link mechanism 520, and the gas spring 522 will be described later.

In this embodiment, the parallel link mechanism 520 is arranged to the right of the central axis 512 of the first mounting table 510 in plan view. That is, the parallel link mechanism 520 is deviated to one side of the central axis 512 of the first mounting table 510 . In addition, the link members 520a, 520b, 520c, and 520d of the parallel link mechanism 520 are parallel or substantially parallel to the central axis 511 of the green onion harvester 10 and the central axis 512 of the first mounting table 510 in plan view. In the green onion harvester 10 of the present embodiment, when the harvested green onions arrive at the workbench 114, the roots of the green onions are positioned on the right side and the leaves are positioned on the left side. Therefore, when the green onion is placed in the storage member placed on the first mounting table 510 , the center of gravity is positioned on the right side of the first mounting table 510 . Therefore, in this embodiment, the parallel link mechanism 520 is arranged to the right of the center axis 512 of the first mounting table 510 in consideration of the weight balance during storage.

Further, in the present embodiment, the support member 530 is arranged at the same position or substantially the same position as the center axis 512 of the first mounting table 510 in a plan view so as to support the first mounting table 510 in a well-balanced manner. However, the position of the parallel link mechanism 520 or the support member 530 is arbitrary, and is not limited to the structures shown in FIGS.

In the scallion harvester 10, considering the workability of the operator, the work surface of the workbench 114 is on the right side of the scallion harvester 10 (seat 240 side, or the side where the operator works), the work surface of the work table 114 and the work surface of the first mounting table 510 have a structure with little difference in level. Therefore, the worker can store the green onions on the work table 114 and smoothly move the container containing the green onions from the work table 114 to the first mounting table 510 . That is, the worker can continuously perform a series of operations related to the storage of green onions. In addition, in a state in which a container containing green onions is placed on the first mounting table 510 (FIG. 4), the first mounting table 510 moves downward due to the weight of the container containing green onions. is adjusted by a parallel link mechanism 520 and a gas spring 522 so as to be at a position where there is little difference in level with the workbench 114 . Therefore, the green onion harvester 10 according to one embodiment of the present invention can improve the efficiency of the worker's green onion storage work without impairing the workability of the worker.

Like the first mounting table 510 , the second mounting table 540 is a table on which a storage member such as a container for storing harvested green onions or a net is placed, and is positioned behind the first mounting table 510 . One end of the second mounting table 540 is rotatably connected to the rear end portion of the first mounting table 510 so that the second mounting table 540 can be rotated upward or downward. The position of the second mounting table 540 relative to the first mounting table 510 when the second mounting table 540 is rotated can be adjusted by, for example, providing a position adjusting member on the frame constituting the second mounting table 540. should be

1-2. Configurations of First Mounting Table 510, Parallel Link Mechanism 520, and Gas Springs 522 Configurations of the first mounting table 510, the parallel link mechanism 520, and the gas springs 522 will be described with reference to FIGS. 1 to 3. FIG. FIG. 3 is a rear view of the configuration of the green onion harvester 10 according to the first embodiment. Note that the description of the same or similar configuration as that of FIG. 1 or FIG. 2 may be omitted.

As described above, the first mounting table 510 is connected to the fuselage 110 via the parallel link mechanism 520 and the gas spring 522 .

As shown in FIG. 3, the parallel link mechanism 520 includes a first link portion 521a, a second link portion 521b, a connecting member 524ac, a connecting member 524bd, and a connecting member 526ab. The first link portion 521a is composed of a link member 520a, a link member 520b, a connecting member 526a, and a connecting member 528a. The second link portion 521b is composed of a link member 520c, a link member 520d, a connecting member 526b, and a connecting member 528b.

The connecting member 528 a is connected (fixed) to the airframe 110 . One end of the link member 520a and one end of the link member 520b are rotatably provided with respect to the connecting member 528a. The connecting member 526 a is connected (fixed) to the first mounting table 510 . The other end of the link member 520a and the other end of the link member 520b are rotatably provided with respect to the connecting member 526a. Also, the connecting member 528b is provided so as to face the connecting member 528a and is connected (fixed) to the airframe 110 .

The link member 520c and the link member 520d are provided so as to face the link member 520a and the link member 520b, and one end of the link member 520c and one end of the link member 520d are provided rotatably with respect to the connection member 528b. Furthermore, the connecting member 526b is provided so as to face the connecting member 526a and is connected (fixed) to the first mounting table 510 . The other end of the link member 520c and the other end of the link member 520d are rotatably provided with respect to the connecting member 526b.

The link members 520a and 520c facing each other are connected (fixed) by a connecting member 524ac, the link members 520b and 520d facing each other are connected (fixed) by a connecting member 524bd, and the connecting members 526a facing each other are connected (fixed). and the connecting member 526b are connected (fixed) by a connecting member 526ab. Link member 520a, link member 520b, connecting member 528a and connecting member 526a form a parallelogram, and link member 520c, link member 520d, connecting member 528b and connecting member 526b form a parallelogram.

One end of the gas spring 522 is rotatably provided with respect to the body 110 . The other end of the gas spring 522 is rotatably provided with respect to the connecting member 526a. Since the connecting member 526 a is connected to the first mounting table 510 , the other end of the gas spring 522 can be said to be rotatable with respect to the first mounting table 510 .

By providing a plurality of attachment portions to which the other end of the gas spring 522 is attached to the connecting member 526a, the attachment position 522b of the parallel link mechanism 520 and the gas spring 522 may be changed. The operator can change the height of the first mounting table 510 by changing the mounting position of the gas spring 522 . Specifically, depending on the number of containers to be stacked, the weight of the container (or the weight of the container and the green onion), the size or weight of the first placing table, the height of the operator, etc., the operator The height of the first mounting table 510 can be changed. Further, if there is enough space and a connection member having a plurality of holes can be provided in the fuselage 110 on which one end of the gas spring 522 is provided, the fuselage 110 and the mounting position 522a of the gas spring 522 can be changed. , a similar effect can be obtained.

1-3. Downward or Upward Movement of First Mounting Table 510 The downward or upward movement of the first mounting table 510 will be described with reference to FIGS. 1 to 4 . FIG. 4 is a side view of the configuration of the green onion harvester 10 according to the first embodiment, viewed from the left. 1 to 3 show a state in which no storage member or a storage member containing green onions is arranged, and FIG. 4 shows a state in which a storage member or a storage member containing green onions is arranged. there is In the following description, a case where the storage member is the container 524 will be described as an example. Further, the description of the same or similar configuration as that of FIGS. 1 to 3 may be omitted.

As shown in FIG. 4, the first mounting table 510 is connected to the machine body 110 via the parallel link mechanism 520 and the gas spring 522, so that for example, a container 524 containing green onions can be placed on the first mounting table 510. Then, due to the weight (also referred to as self-weight) of the container 524 containing the green onions, the first mounting base 510 and the connecting member 526a connected to the first mounting base 510 move from the position indicated by the broken line to the position indicated by the white arrow. Move down. As the first mounting table 510 and the connecting member 526a move downward, the other end of the gas spring 522 provided on the connecting member 526a rotates clockwise with respect to the connecting member 526a as indicated by the solid line arrow. movement and the gas spring 522 contracts. Further, as the first mounting table 510 and the connecting member 526a move downward, the other end of the link member 520a and the other end of the link member 520b provided on the connecting member 526a move toward the connecting position as indicated by solid line arrows. It rotates clockwise relative to member 526a and moves from the position shown in dashed lines to the position shown in solid lines.

A connecting member 526b provided to face the connecting member 526a moves downward in the same manner as the connecting member 526a. A link member 520c and a link member 520d provided to face the link member 520a and the link member 520b rotate clockwise with respect to the connecting member 526b in the same manner as the link member 520a and the link member 520b. Note that the configuration related to the link member 520c and the link member 520d is the same as the configuration related to the link member 520a and the link member 520b, so illustration thereof is omitted.

The parallelogram formed by link member 520a, link member 520b, connecting member 528a and connecting member 526a and the parallelogram formed by link member 520c, link member 520d, connecting member 528b and connecting member 526b are deformed. When the weight of the container 524 containing the green onions and the biasing force of the gas spring 522 are balanced, the downward movement of the first mounting table 510 stops. That is, the green onion harvester 10 has the parallel link mechanism 520 and the gas spring 522 so that the downward movement of the first mounting table 510 can be adjusted.

When the container 524 containing green onions is moved from the first mounting base 510 to a farm field, a truck, or the like, the first mounting base 510 and the connecting member 526a connected to the first mounting base 510 move upward. As the first mounting table 510 and the connecting member 526a move upward, the other end of the gas spring 522 provided on the connecting member 526a rotates counterclockwise with respect to the connecting member 526a, and the gas spring 522 Extend. Further, as the first mounting table 510 and the connecting member 526a move upward, the other end of the link member 520a and the other end of the link member 520b provided on the connecting member 526a move counterclockwise with respect to the connecting member 526a. Rotate around.

The connecting member 526b moves upward in the same manner as the connecting member 526a. Also, the link member 520c and the link member 520d rotate counterclockwise with respect to the connecting member 526b in the same manner as the link member 520a and the link member 520b.

The parallelogram formed by link member 520a, link member 520b, connecting member 528a and connecting member 526a and the parallelogram formed by link member 520c, link member 520d, connecting member 528b and connecting member 526b are deformed. When the weight of the first mounting table 510 and the biasing force of the gas spring 522 are balanced, or when the gas spring 522 is fully extended, the upward movement of the first mounting table 510 stops. That is, the green onion harvester 10 has the parallel link mechanism 520 and the gas spring 522 so that the upward movement of the first mounting table 510 can be adjusted.

In addition, the operator can stack containers or the like on the first mounting table 510 . In addition, since the second mounting table 540 is rotatably connected to the rear end portion of the first mounting table 510 , the operator can move the second mounting table 540 in conjunction with the first mounting table 510 . .

As described above, the green onion harvester 10 includes the parallel link mechanism 520 and the gas spring 522 connected to the machine body 110 and the first mounting table 510 below the first mounting table 510. can be moved downwards or upwards. Therefore, as shown in FIG. 2, in order to move the first mounting table 510 downward or upward, it is necessary to provide the spring onion harvester 10 with other members, such as a base, for supporting the first mounting table 510. There is no Therefore, the structure in which the first mounting table 510 can move up and down can be manufactured with a small number of members, so that the first mounting table 510 can be simplified. In addition, since there are almost no members arranged below the parallel link mechanism 520 and the gas spring 522, even if containers containing green onions are stacked, the first mounting table 510 can be moved downward without problems. The upper surface of the container is maintained at a height that facilitates work, and the efficiency of the worker's work for storing green onions can be improved.

The green onion harvester 10 according to one embodiment of the present invention includes the first mounting table 510, the parallel link mechanism 520, and the gas spring 522, so that the work surface of the work table 114 and the work surface of the first mounting table 510 are aligned. Steps can be reduced. In addition, the green onion harvester 10 according to the embodiment of the present invention includes the vertically movable first mounting table 510 having a relatively simple structure, so that the operator can use a relatively large working space and can move the container. It is possible to move smoothly from the work table 114 to the first mounting table 510 and continuously perform the harvesting work. Therefore, the green onion harvester according to one embodiment of the present invention enables the worker to work safely, and can improve the work efficiency of the worker's harvesting work.

2. Second Embodiment A schematic configuration of a green onion harvester according to a second embodiment of the present invention will be described with reference to FIGS. 5 to 7. FIG. The green onion harvester 20 according to the second embodiment has an empty container mounting table for placing a container containing no crops (hereinafter referred to as an empty container), in contrast to the green onion harvester 10 according to the first embodiment. The difference is that the Therefore, in the description of the configuration of the green onion harvester 20 according to the second embodiment, the differences from the configuration of the green onion harvester 10 according to the first embodiment are mainly described. FIG. 5 is a top plan view of the configuration of the green onion harvester according to the second embodiment. FIG. 6 is a left side view of the configuration of the spring onion harvester according to the second embodiment. FIG. 7 is a rear view of the configuration of the spring onion harvester according to the second embodiment. Note that descriptions of configurations that are the same as or similar to those in FIGS. 1 to 4 may be omitted.

As shown in FIGS. 5 and 6, the green onion harvester 20 includes, for example, three empty container mounting tables. An empty container mounting table 600a is provided behind the working step 220. As shown in FIG. The empty container mounting table 600b is provided on the side of the control section 210 and on the front of the working step 220. As shown in FIG. An empty container mounting table 600 c is provided at the rear portion of the work table 114 . 5 to 7, for example, show an example in which an empty container 526 is placed on the empty container placing table 600c. In addition, in the green onion harvester 20, the positions and/or number of empty container mounting tables are arbitrary, and are not limited to the structures shown in FIGS. The position and/or number of empty container placement tables may be appropriately determined based on the size and weight of the empty container, the work space for the worker to work, the reachable range of the worker, and the like. . At least part of the first mounting table 510 or the second mounting table 540 may be used as an empty container mounting table.

As shown in FIGS. 5 and 7, the empty container platform 600a is connected to the working step 220 by a connecting member 604a. As shown in FIG. 5, empty container platform 600b is connected to working step 220 by connecting member 604b. As shown in FIGS. 5-7, the empty container platform 600c is connected to the workbench 114 by a connecting member 604c.

Empty container mounting table 600a, empty container mounting table 600b, and empty container mounting table 600c are provided with stoppers 602a, 602b, and 602c, respectively, for supporting the container in the front-rear direction. Empty container mounting base 600a, empty container mounting base 600b, and empty container mounting base 600c are provided with stoppers 606a, 606b, and 606c, respectively, for supporting the container in the left-right direction. Empty container placing table 600a, empty container placing table 600b, and empty container placing table 600c are provided with stoppers to prevent empty containers from dropping and being displaced. In the green onion harvester 20, the positions and/or number of stoppers provided on the empty container mounting table are arbitrary, and are not limited to the structures shown in FIGS. The position and/or number of stoppers provided on the empty container table may be appropriately determined based on the size and weight of the empty container.

A green onion harvester according to an embodiment of the present invention is provided with an empty container mounting table, so that a worker can place empty containers from a vehicle or the like on a field or on the ground at regular intervals prior to the green onion harvesting work. , and placing an empty container placed on the field or on the ground on a work table or a mounting table can be omitted. In addition, since the leek harvester according to one embodiment of the present invention is provided with an empty container in the work space for the worker to work or within the reach of the worker, one embodiment of the present invention The structure of the green onion harvester according to 1 is such that the operator can easily place the empty container from the empty container placing table to the work table. Therefore, the green onion harvester according to one embodiment of the present invention can improve the work efficiency of the harvesting work of the worker.

As described above, the present invention has been described with reference to the drawings, but the present invention is not limited to the above-described embodiments, and can be modified as appropriate without departing from the scope of the present invention. Moreover, each of the above-described embodiments can be combined unless there is a particular technical contradiction.

10: harvester, 20: harvester, 100: drive unit, 110: machine body, 112: engine, 114: workbench, 120: travel device, 122: transmission, 200: work unit, 210: control unit, 220: work Step for use, 230: Auxiliary step, 240: Seat, 300: Conveyor, 310: First conveying device, 311: Blade, 312: Hydraulic cylinder, 320: Second conveying device, 321a: First conveying belt, 321b: Second 1 transport belt, 322a: roller, 322b: roller, 323a: second transport belt, 323b: second transport belt, 324: third transport belt, 325: link arm, 326: link arm, 330: first soil removing unit , 340: second soil removing section, 400: support section, 410: support arm, 420: wheel, 430: disk, 440: hydraulic cylinder, 500: storage section, 510: first mounting table, 510a: roller, 511: Central axis 512: Central axis 514: Stopper 520: Parallel link mechanism 520a: Link member 520b: Link member 520c: Link member 520d: Link member 521a: First link portion 521b: Second 522: Gas spring 522a: Gas spring mounting position 522b: Gas spring mounting position 524: Container 524ac: Connecting member 524bd: Connecting member 526: Empty container 526a: Connecting member 526ab : Connecting member 526b: Connecting member 528a: Connecting member 528b: Connecting member 530: Supporting member 540: Second mounting base 600a: Empty container mounting base 600b: Empty container mounting base 600c: Empty container mounting Table 602a: Stopper 602b: Stopper 602c: Stopper 604a: Connection member 604b: Connection member 604c: Connection member 606a: Stopper 606b: Stopper 606c: Stopper 625a: Connection member 626a: Connection member

Claims (5)

Airframe and
a first conveying device that is provided in front of the machine body and conveys the roots of crops on the first conveying device;
a second conveying device provided above the first conveying device for sandwiching foliage of the crop and conveying it rearward;
a workbench provided behind the second conveying device for storing the agricultural products conveyed by the second conveying device;
a mounting table provided behind the workbench, connected to the machine body by a parallel link mechanism and an elastic member, and capable of being raised and lowered by the parallel link mechanism and the elastic member;
with
In plan view, the parallel link mechanism is arranged to be deviated to one side with respect to the central axis of the mounting table,
harvester. Airframe and
a first conveying device that is provided in front of the machine body and conveys the roots of crops on the first conveying device;
a second conveying device provided above the first conveying device for sandwiching foliage of the crop and conveying it rearward;
a workbench provided behind the second conveying device for storing the agricultural products conveyed by the second conveying device;
a mounting table provided behind the workbench, connected to the machine body by a parallel link mechanism and an elastic member, and capable of being raised and lowered by the parallel link mechanism and the elastic member;
with
In plan view, the parallel link mechanism is arranged to be deviated to one side with respect to the central axis of the mounting table ,
By changing the attachment position of the elastic member to the parallel link mechanism and/or the attachment position of the elastic member to the fuselage, the height of the mounting table can be changed .
harvester. Airframe and
a first conveying device that is provided in front of the machine body and conveys the roots of crops on the first conveying device;
a second conveying device provided above the first conveying device for sandwiching foliage of the crop and conveying it rearward;
a workbench provided behind the second conveying device for storing the agricultural products conveyed by the second conveying device;
a mounting table provided behind the workbench, connected to the machine body by a parallel link mechanism and an elastic member, and capable of being raised and lowered by the parallel link mechanism and the elastic member;
with
By changing the attachment position of the elastic member to the parallel link mechanism and/or the attachment position of the elastic member to the fuselage, the height of the mounting table can be changed .
harvester . The mounting table moves up and down by the weight of the storage member and/or the crop placed on the mounting table.
A harvester according to any one of claims 1 to 3. The mounting table includes a rotating roller in a direction substantially orthogonal to the central axis of the machine body,
A harvester according to any one of claims 1 to 4.

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