JP2001346422A - Onion harvester - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a separatory conveyor (20) enabling onions to be conveyed in such a condition as to be easily separable by manual operation. SOLUTION: The subject onion harvester has such a construction that conveyor rollers (96), (96a) as many transverse rods defining the conveyance surface of the separatory conveyor (20) are designed to be tiltable left and right only within a specified interval of a conveyance side straight-travel interval.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to an onion harvester.

[0002]

2. Description of the Related Art Conventionally, a pick-up conveyor for picking up onions from a field is provided in front of a machine having a traveling device, and a pick-up conveyor and foliage are mounted on a container which mounts the picked onions on a rear side of the machine. In the process of being transported through a separation conveyor, a small ball removal conveyor, a sorting conveyor, etc., soil, foliage, small beads, small stones,
There is an onion harvesting machine that removes damaged balls, rotten balls, etc., and loads only standardized balls into a container.

[0003]

Normally, two sorting workers who are on the left and right outer sides of the sorting conveyor remove injured balls and rotten balls from the sorting conveyor. When the onion is conveyed to one side of the sorting conveyor, the sorting operation becomes difficult, and when the onion is conveyed to one side of the sorting conveyor on a flat ground, etc., the sorting operation is performed by one sorting worker. However, there is a problem that it becomes difficult to perform the operation.

[0004]

SUMMARY OF THE INVENTION In accordance with the present invention, there is provided an onion harvesting machine provided with a sorting conveyor for loading onions picked up from a field into a container, wherein a plurality of horizontal rods forming a transport surface of the sorting conveyor are transported. It is configured to be able to tilt left and right only in the predetermined section of the side straight running section, and when the sorting work is performed by two sorting workers, the onion is conveyed to one side of the sorting conveyor on the slope etc. When it is difficult to perform the sorting operation, the horizontal rod is tilted in the opposite direction to the inclination of the field only in a predetermined section of the transport side straight running section to return to the horizontal position, and the sorting operation is performed by one sorting operator. If the onion is not biased to one side of the sorting conveyor on a flat ground or the like, and the sorting operation is difficult to perform, the horizontal rod should be lowered to the sorting operator side only in a predetermined section of the transport side straight running section. To a leaning position. By, obtained to facilitate the selection work,
Also, since the entire sorting conveyor is not tilted to the left and right, the sorting conveyor is fixedly supported on the machine base to prevent vibration and simplify the support structure, etc., and the horizontal rod is a predetermined section in the middle of the straight section on the transport side. By tilting only the right and left, the onion of the sorting conveyor can be properly received and released in a constant posture.

[0005] Further, the conveyor side plate of the sorting conveyor is fixed to the machine base, and the left and right vertical rods supporting the left and right ends of the horizontal rod moving in the transport side straight running section are divided into a plurality of parts, and the horizontal rod is tilted left and right. The left and right divided vertical rods other than the section to be fixed are fixed to the conveyor side plate, and the left and right divided vertical rods of the section where the horizontal rod is tilted left and right are supported on the conveyor side plate so that they can move up and down independently left and right. A simple sorting conveyor can be obtained easily and inexpensively by effectively using the existing structure, and when the onion transport height of the sorting conveyor is lower than the sorting operator, the left and right split vertical rods that can move up and down are raised at the same time. By increasing the onion conveying height of the sorting conveyor, the sorting operation can be performed in an easy posture.

[0006] An operating member for operating the left divided vertical rod among the left and right divided vertical rods supported on the conveyor side plate so as to be vertically movable independently of each other is provided on the right outside of the sorting conveyor, and the right divided vertical rod is provided. Is provided on the left outside of the sorting conveyor, and the horizontal rod is tilted by lifting the horizontal rod end opposite to the operator side. Can be tilted left and right.

In addition, the sorting conveyor is provided in an upwardly inclined state, and the ground is dug down by a turning rut or the like at the edge of a field, so that the sorting conveyor is moved from a harvested ridge to an unharvested ridge. In some cases, the attitude of the aircraft at the time of starting the work may fall backward, and even in this case, the container can be mounted at a height that does not contact the bottom of the container with the ground, and the sorting conveyor will fall backward, and the onion will fall on the sorting conveyor. It is possible to prevent the rolling sorting from being disabled.

In addition, the horizontal rod is tilted left and right in the straight section on the transport side corresponding to the defective product input port provided on the outer side of the sorting conveyor, and is appropriately selected at the outer side of the section where the horizontal rod is tilted left and right. It can do work.

In addition, the horizontal rod is tilted left and right in the transport-side straight running section corresponding to the work range of the sorting operator standing on the outer side of the sorting conveyor. Sorting work can be performed.

[0010]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a side view of the entire onion harvester, FIG.
FIG. 3 is a schematic plan view of the same, FIG. 3 is an explanatory view of the work, and (1) is a machine base having a crawler traveling device (2);
Is an engine unit which is disposed in the first half of the machine base (1) and incorporates the engine (4) and the transmission (5). (6) is an engine unit (3) which is arranged to protrude from one side of the machine base (1). ), A control section arranged side by side to the left or right outside, and (7) is arranged in a rearwardly inclined state from the front side of the machine (1) to above the engine section (3) and can be moved up and down on the machine (1). The lifting conveyor (8) is disposed in front of the lower end of the lifting conveyor (7), and has a digging blade (9) and a rake blade (10a). 11) and a pickup section provided with left and right gauge wheels (12), (13) is lowered backward between the upper end of the lifting conveyor (7) and the chevron bonnet (14) of the engine section (3) therebelow. (15) A foliage separation conveyor which is a forward belt conveyor arranged in an inclined state. Machine stand (1) forklift equipped vertically movably and rotate on the rear side of (16) is a container for crop integrated to be mounted on a forklift (15), (1
7) is a storage box which is arranged in the rear half of the machine base (1) and has an open top which partitions the inside into four receiving boxes (19) via a cross-shaped partition (18). (20) is a foliage separation conveyor ( 13) From the rear side, pass above the storage box (17) and pass through the container (1).
6) Sorting conveyor that is stretched in the section with a rising slope.
(21) left and right chutes extending from the left and right outer portions of the sorting conveyor (20) to the lower rear left and right receiving boxes (19);
(22) is a left and right sorting operation step for loading a sorting operator on the left and right outer sides of the sorting conveyor (20), (2)
2a) is a ladder provided in the sorting operation step (22) on the side opposite to the control section (6) side, and (23) is a small ball removing conveyor arranged between the foliage separating conveyor (13) and the sorting conveyor (20). While moving the body, the onion is picked up from the field via the excavating blade (9) and the scraping blade (10a) of the scraping conveyor (10), and is picked up on the conveyor (11). Is transported from the pick-up conveyor (11) to the sorting conveyor (20) via the lifting conveyor (7), the foliage separating conveyor (13), and the small ball extracting conveyor (23), and the container from the rear end of the sorting conveyor (20). (16).

Also, of the earth and sand, foliage and the like picked up on the pick-up conveyor (11) together with the onion in the field, the sand and the like are transported during the transfer of the pick-up conveyor (11) and the lifting conveyor (7). The foliage is dropped from the conveyor (11) (7), the foliage is dropped on the foliage separation conveyor (13) together with the onion from the upper end of the lifting conveyor (7), and the onion is inclined downward after the foliage separation conveyor (13). And fall into the small ball removal conveyor (23), while the foliage and the like stops on the foliage separation conveyor (13) and is fed forward, and the bonnet (1) is lowered from the front end of the foliage separation conveyor (13).
4) Dropped on the front of the slope, the bonnet (1
It slides down on the front downward slope of 4) and falls into the field from the front side of the machine base (1). Also, among the onions from which soil, foliage, etc. are separated and removed, small balls and other small stones smaller than the standard size are filtered by a small ball removing conveyor (23), dropped on the lower sloping surface of the lower bonnet (14), and fall on the bonnet. (14) It slides down on the descending inclined surface, is dropped and collected in the lower front left and right receiving boxes (19), and only the onions of the standard size or more are carried into the sorting conveyor (20). In the process of feeding onions larger than the standard size on the sorting conveyor (20), the sorting worker (20)
Defective products such as damaged balls and rotten balls are removed from the top, dropped and collected in a lower rear left and right receiving box (19) through a discharge chute (21), and are onion of a size larger than a standard size and free from scratches and rot. Is the one that is loaded into the container (16) from the rear end of the sorting conveyor (20).

As shown in FIGS. 4 to 6, the forklift (15) is provided with left and right columns (24) that are fixed to the rear end of the machine base (1) in a state of being inclined rearward, and columns (24). A fork (27) for vertically moving and rotatably supporting the upper rear side via a pivot shaft (26) in a vertically long guide hole (25) formed in the upper rear surface of the machine; And left and right hydraulic cylinders (28) that are stretched between the section and the back of the fork (27). The cylinder (28) is expanded and contracted to fork (27) and the container (16) mounted on the fork (27).
The cylinder (28) is reduced as shown in FIG. 6, and the tip of the fork (27) is inserted into and removed from the bottom of the container (16) placed in the field. The container (16) is loaded and unloaded by lowering (27) and moving the body back and forth in this state. Replace empty container (16) with fork (2
7), the cylinder (28) is extended and the fork (27) is located at the highest position where the pivot (26) is located at the upper end of the guide hole (25) as shown by the solid line in FIG. ) And the empty container (16), and the cylinder (28) is further extended to the maximum extension state as shown by the phantom line in FIG. 4, and the rotation fulcrum shaft ( 26) The fork (27) and the empty container (16) are rotated counterclockwise around the center, and the rear part of the sorting conveyor (20) is inserted into the container (16). And thereafter, according to the amount of onion loaded in the container (16), the cylinder (2)
8), the fork (27) and the container (16) are rotated clockwise about the rotation fulcrum shaft (26) located at the upper end of the guide hole (25), and the container (16) is rotated.
Is carried out while the onions are being sequentially loaded, and when the unloading is approaching, the fork (27) and the container (16) are placed at the highest position where the rotation fulcrum shaft (26) is located at the upper end of the guide hole (25). Return to the standing state (solid line state in FIG. 4),
The onion is loaded until the container (16) is full, and when the container (16) is full, the cylinder (28) is further reduced, and the fork (27) is lowered until the bottom of the container (16) is in contact with the ground (FIG. 6). ), The full container (16) is placed on the field, and another empty container (1) is placed.
6) is loaded on the fork (16).

The forklift (15) may be a guide roller (29) rotatably supported on the rear surface of the intermediate portion of the column (24) and a rib plate protruding and fixed to the back side of the fork (27). A tilt mechanism comprising a plate (30) is provided, and the rotation fulcrum shaft (26) is horizontally mounted on an upper end portion of the profile plate (30) which protrudes the most on the back side of the fork (27). The fork (27) is lowered from the highest position while the edge of the plate (30) is pressed against the guide roller (29) by rotating the fork (27) clockwise. 30) is provided with a trapezoidal concave portion (31), and when the fork (27) is held at the highest position as shown by the solid line in FIG. Guide the lower working edge (32) By of pressing in La (29), fork plugged into the bottom of the container (16) (27)
When the tip is held parallel to the ground and the fork (27) is lowered from the highest position, the slope is the lower hypotenuse of the recess (31) that is continuous with the lower working edge (32) of the profiler (30). From the intermediate working edge (33) to the recess (31)
The upper working edge (34), which is the bottom piece of the fork (27), is continuously pressed against the guide roller (29).
Are sequentially tilted clockwise, and when the fork (27) is lowered to the container loading / unloading position as shown in FIG. 6, the tip of the fork (27) is held backward and tilted. It is configured to carry out the loading and unloading of (16).

As described above, while the fork (27) is lowered from the highest position, the tip of the fork (27) is tilted backward and downward by the tilt mechanism, and the bottom surface of the container (16) mounted thereon is tilted. , The container (16) can be smoothly placed on the field by holding the fork (27) in the downwardly inclined state, and the body is moved back and forth in this state. Tip of fork (27) with container (16)
By inserting and removing the bottom of the container, the container (16)
Can be smoothly loaded and unloaded.

On the fork (27), a worker stands on the left and right outer sides of the container (16) mounted on the fork (27), and a left and right leveling work is performed to level the onions loaded in the container (16). An operation step (35) is provided to enable the worker to move from the selection operator step (22) to the leveling step (35) during the sorting operation, and to perform the leveling step (35). ) Is provided with a ladder (36) for boarding directly from the field.
Further, the left and right positioning of the container (16) with respect to the fork (27) is performed in the left and right leveling work steps (35), and the container (16) is mounted on the fork (27) in a state where the container (16) is shifted left or right. The left and right leveling steps (35) prevent the container (16) mounted on the fork (27) from shifting to the left or right.

As shown in FIGS. 7 and 8, the pickup section (8) is provided with a digging blade (9), a scraping conveyor (10) and left and right gauges on a conveyor side plate (37) of a pickup conveyor (11). The pickup conveyor (11) is provided with a wheel (12) attached thereto, and the right and left conveyor side plates (39) of the lifting conveyor (7) are connected via a rear conveyor shaft (38).
Picking conveyor (11) pivotably supported on the lower end of the robot
Is moved up and down following the unevenness of the ground by the gauge wheel (12), and the conveyor side plate (37) of the pick-up conveyor (11) and the conveyor side plate (39) of the lifting conveyor (7).
The right and left hydraulic cylinders (40) are stretched between them, and the pickup conveyor (11) is moved up and down by the cylinder (40).

A limit switch (42) with a limit switch lever (41) is attached to the lower end of the conveyor side plate (39) of the lifting conveyor (7), and an operation pin (43) of the limit switch (42) is connected. When the pick-up conveyor (11) is attached to the conveyor side plate (37) of the pick-up conveyor (11) and the pick-up conveyor (11) is raised to a set height (H) at which it becomes substantially horizontal as shown in FIG. ) Is brought into contact with the limit switch lever (41), and when the pick-up conveyor (11) is raised above the set height (H), the limit switch lever (41) is pushed by the operation pin (43) to limit switch (42). When the pickup conveyor (11) is lowered below the set height (H), the operation pin (43) is separated from the limit switch lever (41) to limit the operation. Switch (42) is an on-hold, constitutes or less or Jitsuue conveyor (11) of the height set height (H) above to detect by the limit switch (42).

Further, as shown in FIG.
0) is a single-acting type, which is connected to a discharge port of a hydraulic pump (44) via an ascending electromagnetic switching valve (45), and is connected to a pump (4).
A check valve (46) is provided in a flow path from the cylinder (40) to the cylinder (40), and a lowering solenoid valve (4) that opens and closes a flow path from the cylinder (40) to the oil tank (47).
8) is provided. Also, as shown in FIG. 10, a battery (49) is connected in parallel with an ascending solenoid (45a) of an ascending electromagnetic switching valve (45) and a descending solenoid (48a) of a descending electromagnetic valve (48). (45a) is short-circuited via the raising operation switch (50), and the lowering solenoid (48a) is moved to the lowering operation switch (5).
Short-circuited via 1). When the lowering operation switch (51) is off and the energization to the lowering solenoid (48a) is cut off, the lowering solenoid valve (48) is switched and held by the return spring (48b) to the right block, When the flow path from the cylinder (40) to the oil tank (47) is closed by the check valve (48c) of the block (FIG. 9), the raising operation switch (5)
By turning on 0), the ascending switching solenoid (45a) is energized during that time, the ascending electromagnetic switching valve (45) is switched to the right block, and pressure oil is sent from the pump (44) to the cylinder (40). The cylinder (40) is contracted, the pick-up conveyor (11) is raised, and the pick-up conveyor (11) is positioned by the cylinder (40) at the raising operation position when the raising operation switch (50) is turned off. On the other hand, by turning on the lowering operation switch (51), the lowering solenoid (48a) is energized during that time, and the lowering solenoid valve (48) is switched to the left block.
The flow path from the cylinder (40) to the oil tank (47) is released, the pressure of the cylinder (40) is released, the cylinder (40) is extended by the weight of the pickup conveyor (11), and the pickup conveyor (11) is opened. ) Is lowered, and the pickup conveyor (11) is held by the cylinder (40) at the lowering operation position when the lowering operation switch (51) is turned off.

Then, based on the output of the limit switch (42) for detecting whether the height of the pickup conveyor (11) is equal to or higher than the set height (H), the lowering solenoid valve (4) is detected.
8) A floating mechanism that switches to a “closed” state (the state of FIG. 9) after the elevating operation when the height is equal to or higher than the set height (H), and to an “open” state after the elevating operation when less than the set height (H). A relay coil (53a) connected to the battery (49) via a floating switch (52) and short-circuited via the limit switch (42), as shown in FIG. Solenoid (48
a) A floating relay which is incorporated between the lowering operation switch (51) and comprises a circuit for short-circuiting the lowering solenoid (48a) via the lowering operation switch (51) and a relay switch (53b) for switching directly to a circuit for short-circuiting. (53) is provided, with the floating switch (52) being turned on and the limit switch (42) being turned off, that is, while the pickup conveyor (11) is being moved up and down, the set height (H). Within the above range, the relay switch (5) is connected to a circuit that cuts off the power supply to the relay coil (53a) of the floating relay (53) and short-circuits the descending solenoid (48a) via the descending operation switch (51).
3), the lifting operation of the pickup conveyor (11) by the raising operation switch (50) and the lowering operation switch (51), and the pickup conveyor (11) by the cylinder (40) at the lifting operation position. While the limit switch (42) is being turned on, that is, while the pick-up conveyor (11) is moving up and down,
In the range below the set height (H), the relay coil (53a) of the floating relay (53) is energized and switched to a circuit for directly short-circuiting the descending solenoid (48a) via the relay switch (53b), so as to be picked up. The upper conveyor (11) is lowered until the gauge wheel (12) comes in contact with the ground, and the pick-up conveyor (11) is moved up and down following the unevenness of the ground by the gauge wheel (12).

A relay coil (54a) and a relay switch (5) are provided on the secondary side of the floating switch (52).
4b) is connected in parallel with the ascending priority relay (54), and the floating switch (52) is connected to the relay coil (53a) of the floating relay (53) via the ascending priority relay (54) relay switch (54b). The relay coil (54) of the ascending priority relay (54).
a) is short-circuited via the raising operation switch (50), and the relay coil (54a) of the raising priority relay (54) while the raising operation switch (50) is turned on.
And the relay switch (54b) is kept off to cut off the power supply to the relay coil (53a) of the floating relay (53) and interrupt the floating operation.

An engine (4) is provided for the lifting conveyor (7), the pick-up conveyor (11), and the scraping conveyor (10).
A work clutch switch (55) that is turned on when a work clutch, which will be described later, for transmitting power in an on state and turned off when the work clutch is turned off is provided, and the work clutch switch (55) is connected to a battery ( 49) and the floating switch (52), so that the floating mechanism is operated only when the work clutch is "on", that is, only during work.

As is apparent from the above description, in the onion harvester in which the pick-up conveyor (11) for picking up onions from the field is moved up and down by the cylinder (40), the pick-up conveyor (1) is used.
1) is held by the cylinder (40) at the elevating operation position within a range of not less than the set height (H) in the elevating range, and
A floating mechanism is provided which releases the pressure of the cylinder (40) within the range of the set height (H) or less and moves the gauge wheel (12) up and down following the unevenness of the ground by the gauge wheel (12),
Set the pick-up conveyor (11) to its set height (H) in its lifting range.
Since the lifting height can be adjusted in the above range, the pick-up conveyor (11) can be lifted to the highest position when moving on a road or the like, and can be held at the end of a field, etc. Set the upper conveyor (11) not at the highest position, but at the set height (H).
It can be lifted to a slightly higher position and held in position, so that it can be quickly started to work in the next process. In addition, the floating mechanism is configured to detect whether the height of the pickup conveyor (11) is greater than or equal to a set height (H) or not, based on an output of a limit switch (42) that is a detector. Solenoid valve (48) for opening and closing the flow path to 47)
Is switched to the "closed" state after the elevating operation when the height is equal to or higher than the set height (H), and to the "open" state after the elevating operation when the height is equal to or less than the set height (H). Therefore, it is possible to suppress an increase in manufacturing cost. In addition, the work clutch is "in" the floating mechanism.
A work clutch switch (55), which is a restraining member that is operated only when the vehicle is running, allows the floating mechanism to be operated only during work. Therefore, the pickup conveyor (11) is inadvertently lowered by the floating mechanism when moving. It is possible to prevent malfunctions such as breakage caused by the above. In addition, a lifting priority relay (54), which is a lifting priority member for interrupting the floating operation when the pickup conveyor (11) is raised, is provided so that the lifting conveyor (11) can be reliably lifted at any time only by the lifting operation. Because you can
The operation during the reciprocating movement at the end of the field can be prevented from being complicated, and the pick-up conveyor (11) can be raised urgently to perform the operation safely.

As shown in FIGS. 7 and 8, a gauge wheel (12) is attached to a left and right support frame (56) pivotally supported on a conveyor side plate (11) of a pick-up conveyor (11) so as to be vertically movable. An arm (58) provided on the horizontal rod (57) so as to freely rotate the horizontal rod (57) between the frames (56).
Is connected to the conveyor side plate (11) of the pick-up conveyor (11) via a connecting rod (59), and a hydraulic cylinder (60) is stretched between the arm (58) and the support frame (56). The gauge wheel (12) is raised and lowered by the expansion and contraction of the cylinder (60), and the height of the pickup conveyor (11) with respect to the ground is adjusted.

As shown in FIGS. 11 and 12, the lifting conveyor (7) has a conveyor side plate (39) divided into an upper conveyor side plate (39a) and a lower conveyor side plate (39b). (39a) and (39b) are connected to bendable via an intermediate shaft (61) and can be bent at a bent portion of the conveyor side plate (39). 3) The left and right support frames (63) are erected and fixed on the left and right guard frames (62) that are erected and fixed on the left and right outer sides, and the lifting conveyor (7) is attached to the end of the upper conveyor side plate (39a). An upper conveyor shaft (64) that extends horizontally supports a vertically movable upper end of the support frame (63) and a lower conveyor side plate (39b).
The lower end is pivotally supported on the machine base (1) up and down via left and right lift arms (65) so as to be movable up and down, and a hydraulic cylinder (66) stretched between the machine base (1) and the lift arm (65). The lifting conveyor (7) is configured to be raised and lowered while being bent at a bent portion of the conveyor side plate (39).

Also, as shown in FIGS. 7 and 8, when the lifting conveyor (7) is lifted from the ground by a predetermined height (about 100 mm) in a flat field without the body leaning back and forth. Normal working position, below which lifting conveyor (7)
The stopper (6) is provided with left and right stoppers (67), which are lowering restricting members for restricting the lowering, and an operation lever (68), which is an operating member for releasing the lowering restriction.
Reference numeral 7) denotes a lower outer surface of the lower conveyor side plate (39b), which is mounted on the upper side of the lift arm (65) so as to be rotatable around an axis in the front-rear direction, and whose inner surface contacts the outer surface of the lower conveyor side plate (39b) and faces downward. Position the coil spring (6
In 9), a spring is always applied, and is interlockingly connected via a wire (70) to an operation lever (68) which is attached to the upper outer surface of the lower conveyor side plate (39b) on the operation unit (6) side so as to be tiltable. When the lifting conveyor (7) is lowered to its normal working position by its weight, as shown in FIGS.
The stopper (67), which is held in a downward position at the operation position, is brought into contact with the lift arm (65) from above, thereby restricting the lifting conveyor (7) from lowering below the normal working position. While holding the upper conveyor (7) in the normal working position, the operator of the control unit (6) operates the operation lever (68), and stops the stopper (67).
By pulling the wire (70), the stopper (67) is pivotally displaced outward from the operation position as shown in FIG. 12 to release the engagement with the lift arm (65),
The lifting conveyor (7) is configured to be able to descend below the normal working position.

As is apparent from the above description, the lifting conveyor (7) is disposed in a state of being inclined upward and rearward from the front side of the machine base (1) having the crawler traveling device (2). A lifting conveyor (7) in an onion harvesting machine in which 7) is mounted on the machine base (1) so as to be able to move up and down, and a pickup conveyor (11) for picking up onions from a field is attached to the lower end side of the lifting conveyor (7). (67), which is a lowering restricting member that restricts the lowering of the lowering to below the normal working position, and an operating lever (6) that is an operating member for releasing the lowering restriction.
In a flat field, the lifting conveyor (7) is held at a normal working position higher than the lowest position by a stopper (67) as shown in FIGS. ) And the pickup conveyor (1)
The work is performed while moving 1) up and down following the unevenness of the ground by the gauge wheel (12). At the edge of the field, the ground is dug down by a turning rut, etc. The aircraft attitude when moving around to the ridge and starting work is lowered, and the gauge wheel (12) and the pick-up conveyor (11) are lifted off the ground, so that onions can be picked up from the field. Nothing happens. In such a case,
As shown in FIG. 12, the lifting conveyor (7) is released from being lowered by the stopper (67), and the lifting conveyor (7) is released.
The gauge wheel (12) can be brought into contact with the ground by lowering the
The 1) can be moved up and down by following the unevenness of the ground by the gauge wheel (12), and the pickup height of the pickup conveyor (11) can be adjusted to an appropriate height, so that the onions can be reliably removed from the field. It can be harvested without picking up. In addition, the conveyor side plate (39) of the lifting conveyor (7) is vertically divided and connected in a freely bendable manner, and the lifting conveyor (7) is provided.
At the end of the upper conveyor side plate (39a) to a support frame (63) which is erected on the machine base (1) so as to be vertically movable, and the lower conveyor side plate (39b) is moved via a lift arm (65). On the machine base (1) so that it can move up and down freely,
The lifting conveyor (7) is raised and lowered while being bent at the bent portion of the conveyor side plate (39). When the lifting conveyor (7) is raised and lowered, the lower part of the lifting conveyor (7) is translated or substantially translated. Picking up conveyor (11)
Thus, stable inheritance performance can be obtained without significantly changing the attitude of inheriting onions between the conveyor and the lifting conveyor (7). The stopper (67) is provided on the lower conveyor side plate (39).
b), which is rotatably mounted, is always spring-biased to the operating position, and is interlocked with the operating lever (68), so that when the lifting conveyor (7) is lowered to the normal working position, the lift arm ( 65), the lifting conveyor (7) is held in the normal working position, while the stopper (67) is turned to the non-operating position by the operating lever (68), and the lift arm (65) is brought into contact with the lifting arm (65). The lifting conveyor (7) can be lowered to a position below the normal working position by releasing the locking of the lifting conveyor (7). You can do it. Further, an operation lever (68) is arranged on a conveyor side plate (39) of a lifting conveyor (7) on a side of a control section (6) protruding from one side of the machine base (1). ), Lifting operation of the lifting conveyor (7) can be released simultaneously with other operations, and the operation can be continuously and appropriately performed.

As shown in FIGS. 11 and 12, the engine section (3) incorporates an engine (4) and a transmission (5) together with a work shift case (71), and an output shaft (72) of the engine (4). Power is transmitted from a transmission belt (74) to an input shaft (73) of a mission (5) to drive a crawler traveling device (2), while an output shaft (7) of an engine (4) is driven.
Power is transmitted from the transmission belt (76) from 2) to the input shaft (75) of the transmission case (71), and the transmission case (71) is transmitted.
The power for working is taken out from the PTO shaft (77), which is the output shaft of the motor, and the transmission belt (79) and the tension roller are provided from the PTO shaft (77) to a counter shaft (78) provided below the support frame (63). The work clutch (80) transmits the power in a freely connectable manner, and the counter shaft (7)
8) From the rear conveyor shaft (64) to the lifting conveyor (7)
The transmission chain (81) drives the lifting conveyor (7), and the transmission chain (83) from the counter shaft (78) to the rear conveyor shaft (82) of the foliage separating conveyor (13). The power is transmitted to drive the foliage separation conveyor (13). Pick-up conveyor (11)
The power is transmitted to the rear conveyor shaft (38) from the lower conveyor shaft (84) of the lifting conveyor (7) by the transmission chain (85), and the scraping conveyor (10) is driven by the rear conveyor shaft (86). Power is transmitted from a rear conveyor shaft (38) of a pickup conveyor (11) to a transmission chain (87) to drive the pickup conveyor (11).

As shown in FIGS. 13 to 15, the machine base (1)
A conveyor table (89) is fixed on a sorting table (88) on which the storage box (17) and the left and right sorting operator steps (22) are fixed and fixed to the latter half of the sorting conveyor (2).
0) and the conveyor side plates (90) on the left and right sides.
9), the sorting conveyor (20) is mounted on the rear-upward inclined state, and the sorting conveyor (20) is provided in the rear-upward inclined state. On the front end side of the conveyor side plate (90) of the sorting conveyor (20), a plurality of small bead removing rollers (91) are arranged in the front-rear direction, and the supporting height of the rear small bead removing roller (91) becomes lower. As described above, each of the small bead removal rollers (91) is rotatably suspended on the conveyor side plate (90) of the sorting conveyor (20), and the small bead removing conveyor (23) is inclined backward and downward just before the sorting conveyor (20). Is formed.

The sorting conveyor (20) has its front conveyor shaft (92) laid horizontally on the conveyor side plate (90) immediately after the last small ball removing roller (91) of the small ball removing conveyor (23), and the rear conveyor shaft. (93) is laid on the rear end of the conveyor side plate (90), and between the front conveyor shaft (92) and the rear conveyor shaft (93) is a left and right endless conveyor chain via a sprocket (94). (95) is stretched, and the conveyor rollers (96), which are horizontal bars, are respectively suspended between the conveyor chains (95) via roller shafts (97) at equal intervals to form a roller conveyor. .

The rear conveyor shaft (93) of the sorting conveyor (20) is supported at both ends thereof so as to be able to move back and forth with respect to the conveyor side plate (90), and is pressed backward by a tension spring (not shown) so as to be conveyed. The tension adjustment of (95) can be performed. The discharge chute (2) is provided on the outer surface of the intermediate portion of the conveyor side plate (90).
1) is attached, and one conveyor side plate (9)
A hydraulic motor (98), which is a driving source of the sorting conveyor (20), is mounted on the front outer surface of the front conveyor (0), and the sorting conveyor (20) has a motor (9) attached to its front conveyor shaft (92).
8) is driven by the power transmitted from the output shaft (99) by the transmission chain (100), and each of the small ball removing rollers (91) of the small ball removing conveyor (23) is driven by the front conveyor shaft (92) of the sorting conveyor (20). ) From the transmission chain (101).

Further, on each of the conveyor shafts (92) and (93) of the sorting conveyor (20), left and right disc-shaped traveling guides (102) for traveling and guiding the conveyor rollers (96) are provided. Further, an extending portion (90a) extending inward at a right angle from the lower end of the conveyor side plate (90) is provided, and left and right ends of a conveyor roller (96) moving in a non-transport side straight running section of the sorting conveyor (20). The roller is supported from below by an extension part (90a), and when a certain conveyor roller (96a) of the many conveyor rollers (96) moves to the end side of the non-transport-side straight running section, the conveyor roller immediately after that. (96), the gap between the conveyor roller (96) in the straight section on the transport side and the gap between the conveyor roller (96) in the straight section on the non-transport side without falling off. A clogging prevention mechanism is provided for periodically discharging pebbles and the like that accumulate inside the unit.

The jam prevention mechanism swings the right and left ends of the roller shaft (97a) of a certain conveyor roller (96a) to the right and left ends of the roller shaft (97) of the immediately preceding conveyor roller (96). The link (103) supports the roller so as to be freely rotatable and movable, and the conveyor rollers (96) (96).
The left and right ends of a) are supported from below by the extending portions (90a) of the left and right conveyor side plates (90) from the beginning (the rear end of the conveyor) to just before the end (the front end of the conveyor) of the non-transport-side straight running section. As a result, the conveyor roller (96a) supported by the right and left swing links (103) on the immediately preceding conveyor roller (96) so as to be rotatable and displaceable is provided at the end of the non-transport-side straight running section without the extension (90a). , The conveyor roller (96a) is moved by the immediately preceding conveyor roller (9).
It is configured to rotate and move to a state of being suspended just below 6), and to enlarge the gap with the conveyor roller (96) immediately after that. The number of the conveyor rollers (96a) supported on the left and right conveyor chains (95) so as to be rotatable and displaceable can be appropriately selected. In the case where only one roller is provided, the inner side of the front revolving portion does not fall out of the gap of the conveyor roller (96) in the non-transport side straight running section without falling out of the gap of the conveyor roller (96) in the straight section of the transport side. The pebbles that accumulate in the stack are discharged once per rotation of the sorting conveyor (20).
When provided at equal intervals, this operation is performed once per one-half rotation of the sorting conveyor (20), and when provided at three equal intervals, it is performed once per one-third rotation of the sorting conveyor (20).
In the case of providing n pieces at equal intervals, m of the sorting conveyor (20)
It is performed once per one-minute rotation (n = m). The clogging prevention mechanism prevents the conveyor shafts (92) and (93) and the sprockets (94) and the conveyor chains (95) of the sorting conveyor (20) from significantly reducing durability due to bite of pebbles or the like. It has become.
Pebbles and the like discharged downward from the front end of the sorting conveyor (20) by the clogging prevention mechanism are removed from the small ball conveyor (23).
In the same manner as those filtered in the above, they are dropped and collected in the front left and right receiving boxes (19). Sorting conveyor (2
0) The left and right sides of the conveyor side plate (90) bulging downward from just before the end of the non-transport side straight running section to below the rear part of the small ball conveyor (23) through the lower side of the front circulating section. A bulge (104) is provided, and the bulge (104) is used to extend the bulge (90).
By providing a) below the other parts, the swinging link (103) allows the immediately preceding conveyor roller (96)
The conveyor roller (96a), which is rotatably and movably supported, is suspended from just before the end of the non-transport-side straight running section to just below the immediately preceding conveyor roller (96) at the front end of the front traveling section. I can make the transition.

Further, as shown in FIGS. 16 and 17,
Conveyor rollers (96) (96) of the sorting conveyor (20)
a) providing a rolling mechanism for tilting (rolling) a) right and left only in a predetermined section of the straight section on the transport side, and the rolling mechanism includes conveyor rollers (96) and (96a).
Left and right conveyor rails (105), which are vertical rods, which support the left and right ends of the right and left ends from below in the transport-side straight running section from the front end to the rear end.
5) is divided into three parts: front, middle and rear, and the left and right front conveyor rails (106) and the left and right rear conveyor rails (10)
7) is fixed to the left and right conveyor side plates (90) via the front and rear horizontal connecting frames (108) integrally connecting them, and the left and right conveyor side plates (109) are positioned below the left and right intermediate conveyor rails (109). 90) between two sets of parallel axes (110
a) A pair of front and rear parallel links (112) extending horizontally from (110b) and (111a) (111b) so as to freely rotate and extending integrally from the left ends of a pair of parallel shafts (110a) (110b).
a) (112b) to the left intermediate conveyor rail (10
9) while the other set of parallel axes (111a)
A pair of front and rear parallel links (113a) and (113b) extending integrally from the right end of (111b) are connected to the right intermediate conveyor rail (109), and the left and right intermediate conveyor rails (109) are vertically moved independently. Freely supported on the conveyor side plate (90), and further on the left parallel link (112).
a) A set of parallel shafts (110
a) The right end of the rear shaft (110b) of (110b) protrudes outside the right conveyor side plate (90), and the operation lever (114) is attached to the protruding end, and the operation lever (114) Locking plate (11) having a lever groove (115) for inserting the
6) is attached to the right conveyor side plate (90), while the rear parallel shaft (111b) of the set of parallel shafts (111a) and (111b) integrally extending the right parallel link (113a) (113b). The left end is the left conveyor side plate (90)
And the operating lever (117)
And a lever locking plate (119) having a lever groove (118) for inserting the operation lever (117) therethrough and locking it at each operation position.
0).

Then, the left and right operation levers (117) (1)
14) is held at the lowering operation position on the upper end side of each lever groove (118) (115), and the left and right parallel links (112a) are held.
(112b) ・ (113a) (113b)
The left and right intermediate conveyor rails (109) are connected to two lower parallel shafts (110a) (110b) (111a) (11).
1b) to hold the left and right intermediate conveyor rails (109) at a height where their upper edges are aligned with the upper edges of the front and rear conveyor rails (106) and (107). (20) Conveyor roller (9
6) The (96a) is moved without tilting over the entire section from the start end to the end of the transfer-side straight running section to form a flat transfer surface from the front end to the rear end of the sorting conveyor (20). Further, the left and right operation levers (117) and (114) are held at the ascending operation positions on the lower ends of the lever grooves (118) and (115), and the left and right parallel links (112a) (112b).
(113a) and (113b) are erected, and the left and right intermediate conveyor rails (109) are set on the lower two parallel shafts (11).
0a), (110b), (111a), and (111b) are lifted and supported by the same height, so that the upper edges of the left and right intermediate conveyor rails (109) are higher than the upper edges of the front and rear conveyor rails (106) and (107). The conveyor roller (9) of the sorting conveyor (20).
6) The conveyor rollers (96) and (96a) move the intermediate conveyor rail (10) in the straight running section on the transport side.
9) Conveyor roller (96) only in the section moving above
(96a) is the front and rear conveyor rails (106) (10)
7) The sorting conveyor (20) is moved at a higher position than the section moving above and without tilting to form a conveying surface from the front end to the rear end of the sorting conveyor (20) in which only the middle part is higher than the front part and the rear part. As shown in FIGS. 16 (a) and 17 (a), the right operation lever (114) is connected to the lever groove (115).
, While holding the left operating lever (117) at the lower operating position on the upper end side of the lever groove (118), and holding the left parallel link (112a) (11).
2b) while the right side parallel link (113)
a) The (113b) is laid down and the left intermediate conveyor rail (109) is lowered to its two sets of parallel axes (110a).
(110b) While lifting and supporting from the (111a) and (111b), the right intermediate conveyor rail (109) is provided with two lower parallel shafts (110a), (110b) and (11).
1a) By contacting and supporting the (111b), the left intermediate conveyor rail (109) is held at a position where the upper edge thereof is higher than the upper edges of the front and rear conveyor rails (106) (107), The right intermediate conveyor rail (109) is connected to the front and rear conveyor rails (10
6) Conveyor rollers (96) of the sorting conveyor (20), held at a height that is in line with the upper edge of (107).
Conveyor rollers (96) and (96a) of the intermediate conveyor rail (109)
The conveyor roller (96) (96
a) is moved in an inclined posture in which the left end is higher than the right end to form a transfer surface from the front end to the rear end of the sorting conveyor (20) in which only the middle part is an inclined surface rising to the left, and FIG.
17 (b) and FIG. 17 (b), the left operating lever (117) is held at the raised operating position on the lower end side of the lever groove (118), while the right operating lever (114) is held.
Is held at the lowering operation position on the upper end side of the lever groove (115), and the right parallel links (113a) (113b) are raised while the left parallel links (112a) (112)
b) is laid down and the right intermediate conveyor rail (109)
Is the lower two parallel axes (110a) (110b)
(111a) While lifting and supporting from (111b),
The left intermediate conveyor rail (109) is connected to the lower two parallel axes (110a) (110b) (111a) (11).
1b), the right intermediate conveyor rail (109) is held at a position where the upper edge thereof is higher than the upper edges of the front and rear conveyor rails (106) (107), while the left intermediate conveyor rail (109) is held at the left intermediate position. The conveyor rail (109) is held at a height where its upper edge is aligned with the upper edges of the front and rear conveyor rails (106) and (107), and the conveyor rollers (96) and (96a) of the sorting conveyor (20) are moved. Conveyor rollers (96) (96)
Only during the section where a) moves on the intermediate conveyor rail (109), the right ends of the conveyor rollers (96) (96a) are moved in an inclined posture in which they are higher than the left ends, and the sorting conveyor (20) is moved from the front end to the rear end. Only the intermediate portion forms a transport surface that is an inclined surface that rises to the right.

The intermediate conveyor rail (109) is formed in a trapezoidal shape, and is disposed at a position slightly shifted inward or outward from the front conveyor rail (106) and the rear conveyor rail (107). The conveyor roller (9) is formed to have a length such that a front portion wraps with a rear portion of the front conveyor rail (106) in a side view and a rear portion wraps with a front portion of a rear conveyor rail (107) in a side view.
6) The (96a) is smoothly moved from the front conveyor rail (106) to the intermediate conveyor rail (109) via the rear ascending edge (109a) of its front end, and the conveyor rollers (96) (96a) are moved to the rear conveyor. Rail (10
7) It is configured to move smoothly from the intermediate conveyor rail (109) via the rear lower inclined edge (109b) at the rear end.

The sorting operator stands on the outer side of the discharge chute (21) on the left and right outer sides of the sorting conveyor (20), reaches out onto the sorting conveyor (1) from there, and is scratched from above the sorting conveyor (20). Remove defective products such as balls and rot balls,
The defective product is introduced into the defective product inlet (21a), which is the open top surface of the discharge chute (21). The conveyor rollers (96) and (96a) are provided at least on the outer side of the sorting conveyor (20). The tilting is performed in the transport-side straight running section corresponding to the non-defective product input port (21a) and the transport-side straight running section corresponding to the work range of the sorting operator, so that the sorting operation can be performed properly.

Normally, the sorting conveyor (2) is operated by two sorting operators on the left and right outer sides of the sorting conveyor (20).
0) Damaged balls, rotten balls, etc. are removed from the top. However, when onions are conveyed to one side of the sorting conveyor (20) on an inclined ground or the like, the sorting work becomes difficult to perform, and the flat grounds are difficult to perform. If the onion is conveyed without biasing to one side of the sorting conveyor (20), etc., it is difficult for one sorting operator to perform the sorting operation. However, as apparent from the above, the onion picked up from the field is stored in the container. In the onion harvesting machine provided with the sorting conveyor (20) to be loaded in (16), the conveyor rollers (96) (96a), which are a large number of horizontal rods forming the transport surface of the sorting conveyor (20), are transported in a straight section on the transport side. In the case where the sorting operation is performed by two sorting workers, the onion is conveyed to one side of the sorting conveyor (20) on a slope or the like,
If the sorting operation becomes difficult, the conveyor rollers (96) and (96a) are tilted in the opposite direction to the inclination of the field to return to the horizontal position only in a predetermined section of the transport-side straight running section. When the sorting operation is performed and the onion does not shift to one side of the sorting conveyor (20) on a flat ground or the like and the sorting operation becomes difficult to perform, the conveyor roller (only in a predetermined section of the transport side straight running section) is used. 96) By inclining the (96a) so that it is lower than the sorting operator side and in an inclined position, the sorting operation is facilitated, and the entire sorting conveyor (20) is not tilted left and right. ) Is fixedly supported on the machine base (1) to prevent vibrations and simplify the support structure, etc., and the conveyor rollers (96) (96a) can be easily moved in a predetermined section in the middle of the transport-side straight running section. Only left By tilting the one in which properly perform the onion acceptance and release of sorting conveyor (20) at a constant posture. Also, the conveyor side plate (90) of the sorting conveyor (20) is fixed to the machine base (1), and the right and left vertical rods supporting the left and right ends of the conveyor rollers (96) (96a) moving in the straight running section on the transport side. A left and right conveyor rail (105) is divided into a plurality of parts and a conveyor roller (96)
The left and right conveyor rails (106) and (107) other than the section where the (96a) is tilted left and right are connected to the conveyor side plate (90).
, And a conveyor rail (109) in a section in which the conveyor rollers (96) (96a) are tilted left and right is supported on the conveyor side plate (90) so as to be vertically movable independently of the left and right sides. ) Can be easily and inexpensively obtained by effectively utilizing the existing structure, and when the onion conveying height of the sorting conveyor (20) is lower than the sorting operator, the left and right conveyor rails (109) that can move up and down are provided. By simultaneously raising the left and right sides and increasing the onion conveying height of the sorting conveyor (20), the sorting operation can be performed in an easy posture. Also, of the conveyor rails (109) supported on the conveyor side plate (90) so as to be vertically movable independently of each other, an operation lever (114) serving as an operation member for operating the left conveyor rail (109) is selected by the sorting conveyor (20). On the right outside of
An operation lever (117), which is an operation member for operating the right conveyor rail (109), is provided on the left outer side of the sorting conveyor (20), and includes a conveyor roller (96) (96).
The tilt of (a) is changed to the conveyor roller (9) on the side opposite to the operator side.
6) (96a) Since the end portion is lifted, the conveyor rollers (96) and (96a) are provided only in a predetermined section of the transport-side straight running section.
Can be tilted left and right. In addition, the sorting conveyor (20) is provided in an upwardly inclined state.
At the edge of the field, the ground has been dug down due to turning tracks, etc., so the aircraft attitude when moving around from a harvested ridge to an unharvested ridge and starting work may fall backwards,
Even in this case, the container (16) can be mounted at a height such that the bottom surface of the container (16) does not contact the ground, and the sorting conveyor (20) falls backward, so that the onion cannot roll on the sorting conveyor (20) to perform sorting. Can be prevented.

[0038]

As is clear from the above embodiments, the onion harvester of the present invention uses onion picked up from a field in a container (1).
In the onion harvesting machine provided with the sorting conveyor (20) to be loaded in 6), the conveyor rollers (96) (96a), which are a large number of horizontal rods forming the transport surface of the sorting conveyor (20), are transported in the transport-side straight running section. It is constructed so that it can be tilted to the left and right only in a predetermined section, and when two sorting workers are performing sorting work, onions are conveyed to one side of the sorting conveyor (20) on a slope or the like, and sorted. If the work becomes difficult, the conveyor rollers (96) and (96a) are returned to the horizontal position by tilting the conveyor rollers (96) and (96a) in the opposite direction to the inclination of the field only in a predetermined section of the transport-side straight running section, and the sorting is performed by one sorting operator. During the operation, onions are sorted on flat ground etc. (2
0) When the sorting operation is difficult to be performed without being biased to one side, the conveyor rollers (96) and (96a) are tilted so as to be lower than the sorting operator only in a predetermined section of the transport-side straight running section. Since the sorting operation is facilitated by adopting the inclined posture and the entire sorting conveyor (20) is not tilted to the left and right, the sorting conveyor (20) is fixedly supported on the machine base (1) to prevent vibration and support structure. Simplification and the like can be easily achieved, and the conveyor rollers (96) (96)
By tilting a) right and left only in a predetermined section in the middle of the straight section on the transport side, the sorting conveyor (20) can properly receive and release the onion in a constant posture.

Further, the conveyor side plate (90) of the sorting conveyor (20) is fixed to the machine base (1), and supports the left and right ends of the conveyor rollers (96) (96a) moving in the straight running section on the transport side. Left and right conveyor rails (10
5) is divided into a plurality of parts, and the conveyor rollers (96) (96)
Conveyor rails (109) in a section where the left and right conveyor rails (106) and (107) are fixed to the conveyor side plate (90) and the conveyor rollers (96) and (96a) are tilted left and right except for the section where (a) is tilted left and right. Is supported on the conveyor side plate (90) so that it can move up and down independently of the left and right.
A new sorting conveyor (20) can be easily and inexpensively obtained by effectively utilizing the existing structure, and when the onion conveying height of the sorting conveyor (20) is lower than the sorting operator, the left and right movable vertically. Raise the conveyor rail (109) left and right simultaneously,
By increasing the onion conveyance height of the sorting conveyor (20), the sorting operation can be performed in an easy posture.

An operation lever (114), which is an operation member for operating the left conveyor rail (109), is selected from among the conveyor rails (109) supported on the conveyor side plate (90) so as to be vertically movable independently of each other. Conveyor (20)
The operation lever (117), which is an operation member for operating the right conveyor rail (109), is provided on the left outside of the sorting conveyor (20), and tilts the conveyor rollers (96) (96a). Since the end of the conveyor roller (96) (96a) opposite to the operator side is lifted,
Conveyor rollers (9
6) (96a) can be tilted left and right.

Further, the sorting conveyor (20) is provided in an upwardly inclined state, and the ground is dug down by a turning rut or the like at an edge of a field, so that the sorting conveyor (20) moves from a harvested ridge to an unharvested ridge. In some cases, the attitude of the aircraft when moving and starting work may fall backward, and even in this case, the container (16)
The container (16) can be mounted at a height such that the bottom surface does not contact the ground, and the sorting conveyor (20) can be prevented from falling backward, so that the onion cannot be rolled on the sorting conveyor (20) and cannot be sorted.

The conveyor rollers (96) (96a) are tilted to the left and right in a straight running section on the transport side corresponding to the defective product inlet (21a) provided on the outer side of the sorting conveyor (20). 96) The sorting operation can be properly performed outside the section where (96a) is tilted right and left.

Further, the conveyor rollers (96) and (96a) are tilted left and right in the straight running section on the transport side corresponding to the working range of the sorting operator standing outside the sorting conveyor (20). (96a) can be properly sorted on the outer side of the section where the (96a) is tilted left and right.

[Brief description of the drawings]

Fig. 1 Side view of the whole onion harvester

FIG. 2 is a schematic plan view of the entire onion harvester.

FIG. 3 is a diagram illustrating the operation of the onion harvester

FIG. 4 is a side view of the forklift during operation.

FIG. 5 is a front view of a forklift.

FIG. 6 is a side view of the forklift when loading and unloading containers.

FIG. 7 is a side view of the pickup unit during operation.

FIG. 8 is a side view of the pickup unit in a state where the pickup conveyor is lifted to a set height.

FIG. 9 is a hydraulic circuit diagram for elevating the pickup unit.

FIG. 10 is an electric circuit diagram for elevating the pickup unit.

FIG. 11 is a side view of the front of the machine body with the lifting conveyor being held at the normal working position.

FIG. 12 is a side view of the front portion of the aircraft in a state where the lifting conveyor is lowered below the normal working position.

FIG. 13 is a side view of the rear part of the fuselage showing the support structure of the sorting conveyor.

FIG. 14 is a side sectional view of a sorting conveyor.

FIG. 15 is a plan view of a sorting conveyor.

FIG. 16 is an explanatory side view of a rolling mechanism of a conveyor roller of the sorting conveyor.

FIG. 17 is an explanatory rear view of a rolling mechanism of a conveyor roller of the sorting conveyor.

[Explanation of symbols]

 (1) Machine stand (16) Container (20) Sorting conveyor (90) Conveyor side plate (96) Conveyor roller (horizontal rod) (105) Conveyor rail (vertical rod) (106) Front conveyor rail (107) Rear conveyor rail (109) Intermediate conveyor rail (114) Operation lever (117) Operation lever

Continued on the front page (72) Inventor Katsunori Tadano Katsutoshi-shi, Hokkaido 1061, 2-star agricultural machine Co., Ltd. 2B072 AA03 BA03 BA28 CA16 CB08 EA08 EA18 FA03 FA08 GA00 GA03 GA18 GA21

Claims (6)

[Claims] In an onion harvesting machine provided with a sorting conveyor for loading onions picked up from a field into a container, a large number of horizontal rods forming a transporting surface of the sorting conveyor are moved right and left only in a predetermined section of a transport-side straight running section. An onion harvesting machine characterized in that it can be tilted freely. 2. The conveyor side plate of the sorting conveyor is fixed to the machine base, and the left and right vertical rods supporting the left and right ends of the horizontal rod moving in the transport side straight running section are divided into a plurality of parts, and the horizontal rod is tilted left and right. Fix the left and right divided vertical bars other than the section to be made to the conveyor side plate,
The onion harvesting machine according to claim 1, wherein the left and right divided vertical bars of the section in which the horizontal bar is tilted left and right are supported on the conveyor side plate so as to be vertically movable independently of the left and right sides. 3. An operation member for operating a left divided vertical rod among left and right divided vertical rods supported on a conveyor side plate so as to be vertically movable independently of each other is provided on a right outer side of a sorting conveyor, and a right divided vertical rod is provided. 4. An onion harvesting machine according to claim 3, wherein an operation member for operating is provided on the left outside of the sorting conveyor. 4. The onion harvesting machine according to claim 1, wherein the sorting conveyor is provided in an upwardly inclined state. 5. The onion harvesting machine according to claim 1, wherein the horizontal rod is tilted left and right in a straight running section on the transport side corresponding to a defective product inlet provided on an outer side of the sorting conveyor. 6. The onion-harvesting machine according to claim 1, wherein the horizontal rod is tilted left and right in a transport-side straight running section corresponding to a work range of a sorting operator standing outside a sorting conveyor.