JP7003973B2 - Harvester - Google Patents

Description

The present invention relates to a harvester for harvesting crops.

Conventionally, as a harvester for harvesting crops such as vegetables from a field, for example, those described in the following Patent Documents 1 and 2 are known.

In each of Patent Documents 1 and 2, a harvesting section for pulling out root vegetable crops such as carrots from the field and cutting the foliage portion thereof, a storage section for accommodating the harvested root vegetable crops, and cutting of the foliage section. After passing through the residual leaf processing belt conveyor that transports the root vegetable crops that have been removed to process the residual leaves, and the sorting work area where the auxiliary workers perform the sorting work, the root vegetable crops that have been treated with residual leaves are transported to the storage section. A root vegetable harvester equipped with a belt transport device is described.

Further, in Patent Document 1, the belt transport device has one transport belt including a pair of transmission chains arranged in parallel at intervals and a plurality of transport bars rotatably attached between them. It is described that it is arranged so as to be in a basic state extending linearly in a substantially horizontal direction from the start end of the transfer to the end of the transfer in principle.

Further, in Patent Document 2, the belt transport device is arranged in parallel at a position lower than the residual leaf processing belt conveyor, and the transport start end is located below the transport end portion of the recovery belt conveyor. It is described that the conveyor is composed of a sorting and transporting belt conveyor that is arranged so as to be in a state of extending in a straight line almost horizontally in principle after being inclined upward and extending.

Japanese Unexamined Patent Publication No. 2014-217299 Japanese Unexamined Patent Publication No. 2015-122961

However, in any of the root vegetable harvesters described in Patent Documents 1 and 2, the root vegetable crops transferred from the residual leaf processing belt conveyor to the belt conveyor and delivered are, for example, the feeding direction of the belt conveyor or its intersection. It is transported by the belt conveyor due to the problem that it becomes easy to move with excessive force so as to overrun in the direction, the movement that overruns, and the movement with the amount of transportation from the residual leaf processing belt conveyor remaining uneven. There is a problem that the amount of the belt is likely to vary.
In this case, the fact that the root vegetable crops move to the belt transport device with excessive force and tend to be unevenly present in a part thereof may be a factor that induces a variation in the amount when the root vegetable crops are transported by the belt transport device. be. In addition, if there is a large variation in the amount of root vegetable crops when they are transported by the belt transport device, the sorting work performed during the transport may become difficult and may induce uneven sorting.

In particular, the root vegetable harvester described in Patent Document 1 tends to have the above-mentioned two problems.
On the other hand, in the root vegetable harvester described in Patent Document 2, the latter problem tends to be suppressed to some extent, but the belt conveyor is composed of two conveyors, a recovery belt conveyor and a sorting conveyor belt conveyor. Therefore, it is necessary to have a configuration in which the conveyor belts of the two conveyors are rotationally driven, which causes a problem that the number of parts and the weight of the machine increase. In addition, this root vegetable harvester has a structure in which the connection between the recovery belt conveyor and the sorting and transporting belt conveyor is connected in a discontinuous state with a steep head, so that root vegetable crops are sorted from the recovery belt conveyor. When it is moved to a conveyor belt and handed over, it is easily impacted and may be damaged.

Therefore, the present invention relates to a second belt transport device that transports crops harvested from a field so as to perform cleaning treatment such as removal of residual leaves, to a second belt transport device that passes through a sorting work area and transports the crops to a storage device. Harvesting that can prevent overrunning movement and excessive impact when delivered, and can also prevent variations in the amount transported by the second belt transport device. The challenge is to provide an opportunity.

The above-mentioned problem of this invention is solved by the following means.
The invention according to claim 1 is a harvesting apparatus (3) for harvesting crops from a field.
A storage device (4) for accommodating the crops harvested by the harvest device (3) in a container (48), and
The first belt transporting device (5) that transports the crops harvested by the harvesting device (3) so as to be cleaned.
The crops are arranged in parallel with the first belt transport device (5) so that the crops are delivered from the first belt transport device (5), and the delivered crops pass through the sorting work area (9). A second belt transporting device (6) that transports the products from being made to the accommodating device (4) until they are sent out to the accommodating device (4).
Equipped with
In the second belt transport device (6), the transport surface (66) when the crop is placed and transported includes a part of the transport surface (Tp) of the crop from the first belt transport device (5). It is composed of one transport belt (62) arranged so as to be one recessed transport surface (67) that moves in a recessed state in a section (Rp) .
The recessed transport surface (67) tilts upward after passing through a descending slope portion (67a) that moves downward at the delivery place (Tp) of the crop and a delivery place (Tp) of the crop. It is a harvester (1) characterized by having a transport surface having an ascending slope portion (67b) .

The invention according to claim 2 is the invention according to claim 1 , wherein the transport belt (62) of the second belt transport device (6) is the ascending slope portion (67b) of the recessed transport surface (67). The transport surface is arranged so as to extend to a point (up) higher than the height of the point (ds) at which the downward slope portion (67a) on the recessed transport surface (67) begins to incline. It is a harvester characterized by.

The invention according to claim 3 is the invention according to claim 1 or 2 , wherein the conveyor belt (62) of the second belt conveyor (6) is parallel to the first belt conveyor (5). The harvester is characterized in that the transport surface (66h1) in the region is arranged so as to be lower than the transport surface of the first belt transport device (5).

The invention according to claim 4 is the invention according to any one of claims 1 to 3 , wherein the second belt transport device (6) makes the transport belt (62) rotatable at a position on the transport end side thereof. It has a drive support rotating body (76B) that supports and drives, and a motor (82) arranged at a lower portion on the front side of the transfer end of the transfer belt (62), and the power of the motor (82) is supplied to the motor (82). The harvester is characterized in that it is configured to transmit to the drive support rotating body (76B) via a chain or belt type drive transmission means (83).

The invention according to claim 5 is the invention according to any one of claims 1 to 4 , wherein the second belt transport device (6) makes the transport belt (62) rotatable at a position on the transport start end side thereof. A tension adjusting mechanism (68) that adjusts the tension applied to the transport belt (62) by arranging and displace the starting end supporting rotating body (71A) to be supported and the starting end supporting rotating body (71A) in a displaceable manner. It is a harvester characterized by having and.

According to the invention of claim 1, the second belt transfer device is arranged so that the transfer surface becomes one recessed transfer surface in a part of the area including the delivery place of the crop from the first belt transfer device. Since it is composed of one transport belt, when the crops harvested from the field are delivered from the first belt transport device to the second belt transport device, they move with a force that causes overrun or more than necessary. It is possible to suppress the impact, and it is possible to suppress the amount of variation when the belt is conveyed by the second belt transfer device.
Further, according to the first aspect of the present invention, since the recessed transport surface in the transport belt of the second belt transport device is a transport surface having a descending inclined portion and an ascending inclined portion, the above effect can be easily obtained. Good transportation of crops can be performed.

According to the second aspect of the present invention, until the inclined surface of the ascending inclined portion on the recessed conveying surface of the conveying belt of the second belt conveying device reaches a point above the height of the point where the inclining of the descending inclined portion starts. Since it is in the extended state, it is possible to more reliably suppress the amount of variation when being conveyed by the second belt conveying device.

According to the invention of claim 3 , since the transport surface in the region parallel to the first belt transport device of the transport belt of the second belt transport device is arranged below the transport surface of the first belt transport device. When the crops are delivered to the transport belt of the second belt transport device, they are scattered, and it becomes easy to suppress the amount of the crops when they are transported by the second belt transport device.

According to the invention of claim 4 , another means of a chain or belt type drive transmission means without directly connecting the power of the motor to the drive support rotating body of one transfer belt constituting the second belt transfer device. Since it is transmitted via the transmission path of the above, even when a load or impact is applied to one transport belt, it is possible to prevent the load or impact from directly reaching the motor. Further, since the motor is arranged at a lower portion on the front side of the transport end of the transport belt, there is no possibility of hindering the sorting work in the sorting work area.

According to the fifth aspect of the present invention, it is possible to easily adjust the tension applied to the transport belt of the second belt transport device so that the presence of peripheral devices, parts and the like is less likely to be an obstacle.

It is a left side view which shows the harvester which concerns on embodiment. It is a right side view showing a harvester. It is a top view which shows the harvester. It is a rear view which shows the harvester. It is a schematic plan view which shows the structure of a part (the 1st belt transporting apparatus and the 2nd belt transporting apparatus) of a harvester. It is a schematic rear view which shows the structure of the 2nd belt transfer apparatus and the like. It is a schematic plan view which shows the structure of the 2nd belt transfer apparatus and the like. (A) is a schematic left side view showing the configuration of a part of the second belt transfer device (the transfer end side of the movable conveyor section), and (B) is the transfer surface of the first belt transfer device and the second belt transfer device. It is a schematic diagram which shows the height relation. It is a schematic diagram which shows the structure about the 2nd conveyor belt of the 2nd belt conveyor apparatus.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

1 to 4 show a vegetable harvester 1 as a harvester according to an embodiment of the present invention.
In the following description, the forward direction of the harvester 1 is forward, and the backward direction is backward. Similarly, the left and right directions when facing the forward direction of the harvester 1 are left and right, respectively, and the vertical directions of the harvester 1 are upward and downward, respectively.

As shown in FIGS. 1 to 4, the vegetable harvester 1 is a machine 2 supported by a traveling device consisting of a pair of left and right crawlers 21A, 21B, etc., and a crop 100, which is a vegetable, is transferred from a field 200 such as a field. The harvesting device 3 to be harvested, the storage device 4 for accommodating the crop 100 harvested by the harvesting device 3 in the storage bag 48 which is an example of a container, and the first belt for transporting the crop 100 harvested by the harvesting device 3 for cleaning. The second belt transport device 6 for transporting the crop 100 delivered from the transport device 5 and the first belt transport device 5 to the accommodating device 4 after passing through the sorting work area 9, and the control unit 12 for traveling and operating the equipment. Etc. are provided.
The crop 100 in this embodiment is intended for carrots, which are root vegetable-based vegetables.

First, the machine body 2 is composed of a plurality of members such as a support frame and a support plate. The crawlers 21A and 21B, which are traveling devices, drive the belt crawlers by an axle and driving wheels that rotate by transmitting rotational power output from an engine (not shown) mounted on the machine body 2.
Further, the control unit 12 is configured by arranging a control seat 14, a control lever 15 for traveling operation and equipment operation, an instrument panel 16, and the like in the control seat box 13. In the control unit 12, a control (worker) person sitting in the control seat 14 performs a control operation including confirmation of the instrument panel 16 and operation of the control lever 15.

Next, the harvesting device 3 is a pull-out transport device 31 that sandwiches the foliage portion of the carrot, which is the crop 100, pulls it out from the field, and then transports it toward the rear upper part, and a raising device that raises the foliage portion of the crop 100 from the field 200. 33, a foliage processing device 34 for cutting the foliage portion of the crop 100 and the like are provided. The harvesting device 3 is arranged on the left side of the machine body 2. Further, the harvesting device 3 is attached so that the pull-out transfer device 31 and the raising device 33 can move up and down with respect to the machine body 2 to adjust the position with respect to the field 200.

Reference numerals 17 in FIGS. 1 to 3 indicate a ground ring that touches the field 200, and reference numeral 18 indicates a subsoiler that applies vibration to soften the soil. The ground ring 17 is attached to the machine body 2 so as to be movable in the vertical direction. The subsoiler 18 is inserted into the ground near both sides of the crop 100 to be harvested in the field 200 to give vibration. Further, the subsoiler 18 is connected to the ground contact ring 17 and is attached in a state of being movable in the vertical direction in conjunction with the ground contact ring 17.

The pull-out transfer device 31 is a pair of left and right holding belts 32A, which are suspended and rotated by supporting parts such as a driven pulley and a drive pulley, which are appropriately arranged from a position close to the field 200 to a position extending to the rear upper part of the machine body 2. It is equipped with 32B and the like.

The foliage processing device 34 sandwiches the foliage portion of the crop 100 transported by the sandwiching belts 32A and 32B, and transports the foliage portion of the crop 100 to the rear side in a substantially horizontal direction. A pair of left and right rotary cutting blades 36 that cut between the foliage and root vegetables of the crop 100 at a position approximately in the middle, and the uncut leaf stalks (residual leaves) in the root vegetables of the crop 100 after being cut. ) And a cleaning device that removes and cleans unnecessary substances such as residual soil that adheres to the crop, and a discharge table 38 that is tilted so as to receive the leaf stem of the crop 100 cut off by the rotary cutting blade 36 and slide it down to the field 200. It is equipped with.
Here, the cleaning device corresponds to the first belt transfer device 5.

As shown in FIGS. 1 to 5, the first belt conveyor 5 receives the root vegetable portion of the crop 100 that falls after being cut by the rotary cutting blade 36, and conveys the root vegetable portion to the right of the machine body 2. It is composed of a cleaning processing roller 52 that removes residual leaves, residual soil, etc. in the root vegetable portion of the crop 100 conveyed by the belt conveyor 51, performs cleaning processing, and sends the cleaning processing roller 52 to the second belt transporting device 6 diagonally forward or sideways. Has been done.

The belt conveyor 51 includes support frames 53 and 53 arranged at a position on the rear side of the machine body 2 from the second belt transport device 6 so as to extend in the left-right direction of the machine body 2 at intervals in the front-rear direction of the machine body 2. A drive roller 54 and a driven roller 55 rotatably provided between both ends of the support frames 53 and 53 in the longitudinal direction, and a first conveyor belt 56 that is rotated by being hung on the drive roller 54 and the driven roller 55. It is composed of.
Further, the belt conveyor 51 is arranged so that the transport start end side of the first transport belt 56 is located substantially directly below the rotary cutting blade 36.
Further, in the belt conveyor 51, the upper portion of the support frame 53 arranged behind the machine body 2 of the support frame 53 is formed so as to project upward from the transport surface 57 of the first transport belt 56, and the crop 100 is formed. It is used as a side wall to prevent protrusion and fall from the first conveyor belt 56 (FIG. 8 (B)).

In the belt conveyor 51, the first conveyor belt 56 is rotated so that the crop 100 is in the transport direction E1 by, for example, a drive roller 54 that is rotated by transmission of rotational power from an engine (not shown above). The transport direction E1 at this time is the direction in which the transport surface of the first transport belt 56 moves from the left side to the right side of the machine body 2. As the first transport belt 56, an endless belt made of a material such as rubber and having a required width, thickness and circumference is applied.

The cleaning processing roller 52 rotates in a state where a gap is left so that the root vegetable portion of the crop 100 does not pass through the upper surface portion on the transport end side of the belt conveyor 51 and in a state where the roller 52 intersects the transport direction of the belt conveyor 51 diagonally. Arranged to do. The cleaning processing roller 52 is in a state in which the entire roller is tilted so that the roller front end 52f is located on the right side of the machine 2 and the roller rear end 52r is located on the left side of the machine 2 with respect to the transport direction E1 of the belt conveyor 51. It is arranged in.

In the first belt conveyor 5, as shown in FIG. 5, the crop 100 transported in the transport direction E1 by the first conveyor belt 56 of the belt conveyor 51 is removed from soil and cleaned by contact with the cleaning processing roller 52. Residual leaves are pinched and removed in the gap between the processing roller 52 and the first transfer belt 56. While receiving cleaning processing such as removing residual leaves, the cleaning processing roller 52 guides the remaining leaves to the front right of the machine 2 and finally conveys them. Then, it is moved to the second belt conveyor 6 and delivered.

Next, the second belt conveyor 6 starts to convey the crop 100 (root vegetable portion) delivered from the first belt conveyor 5 in the foliage processing device 34 from the left side to the right side of the machine body 2, and the auxiliary worker starts to convey the crop 100. It is composed of a belt conveyor 61 which is conveyed until it is sent to the accommodating device 4 after passing through the sorting work area 9 where the sorting work is performed.

The entire conveyor 61 of the belt conveyor 61 is configured by using one second conveyor belt 62.
Further, from the viewpoint of delivering the crop 100 from the first belt conveyor 5 to the belt conveyor 61, a part of the belt conveyor 61 (the area on the transport start end side of the second conveyor belt 62) is the first belt conveyor 5. It is arranged in parallel with the belt conveyor 51. The entire belt conveyor 61 is arranged so as to extend in the left-right direction of the machine body 2 at a position behind the control unit 12 of the machine body 2 and in front of the first belt transfer device 5. ing.
Further, the belt conveyor 61 is composed of a fixed conveyor portion 61A and a movable conveyor portion 61B.

As shown in FIGS. 5 and 8A, the second transport belt 62 includes an endless transmission chain 621 and 621 that rotate so as to be in the transport direction E2 of the belt conveyor 61, and a plurality of transport bars 622. ... And a plurality of receiving plates 623. The transport direction E2 at this time is the direction in which the transport surface of the second transport belt 62 moves from the left side to the right side of the machine body 2.
The transmission chains 621 and 621 rotate by receiving rotational power from a support rotating body described later, and are arranged at both left and right ends (in the front and rear of the machine body 2 in this embodiment) in the transport direction E2 of the belt conveyor 61. The transport bars 622, ... Are portions for actually loading and transporting the crop 100, and are arranged at equal intervals in the rotation direction between the transmission chains 621 and 621. The receiving plate 623 is a plate-shaped member that receives the crop 100 being transported, and is arranged in a state of protruding upward to a required height at equidistant positions for each required number of the plurality of transport bars 622, .... ..
As will be described later, the second transport belt 62 is configured to rotate by transmitting the rotational power of the motor (82) from a drive path (drive transmission device 83) different from the transmission chain 621.

The fixed conveyor portion 61A is a portion of the belt conveyor 61 that is fixedly arranged in a region from a position that becomes a transport start end on the left end side of the machine body 2 to a position during transport (a connection portion with the movable conveyor portion 61B). Is.

The fixed conveyor unit 61A includes a fixed support frame 63 arranged in a state of being extended so as to project from a state parallel to the belt conveyor 51 of the first belt conveyor 5 to the right side of the machine body 2. The fixed support frame 63 is composed of a pair of side frames arranged in a state of facing each other at a substantially constant interval in the front-rear direction of the machine body 2, and a connecting frame including a bottom frame for connecting the pair of side frames. ing.
Further, the fixed conveyor portion 61A rotatably supports a portion passing through the fixed conveyor portion 61A on the transport starting end side of the second conveyor belt 62 (transmission chain 621, 621) with respect to the fixed support frame 63. Support rotating bodies 71A to 71D, 72A to 72C, and transport guides 73 that support and guide the movement of the second transport belt 62 (transmission chains 621 and 621) between the support rotating bodies 71 and 72 during rotation are provided. Have been placed. The support rotating bodies 71A to 71D are sprockets or the like that rotatably support the transmission chains 621 and 621 while engaging with each other. The support rotating bodies 72A to 72C are pulleys or the like that rotatably support the transmission chains 621 and 621.
Further, the fixed conveyor portion 61A is formed so that the upper portion of the fixed support frame 63 protrudes upward from the transport surface 57 of the second transport belt 62 to prevent the crop 100 from protruding or falling off from the second conveyor belt 62. It is used as a side wall (FIG. 8 (B)).

As shown in FIG. 8B, the second conveyor belt 62 in the fixed conveyor portion 61A of the belt conveyor 61 has a conveyor belt 66 (fixed horizontal conveyor surface) in a region parallel to the belt conveyor 51 of the first belt conveyor 5. 66h1: FIG. 9) is arranged so as to be below the transport surface 57 of the first conveyor belt 56 of the belt conveyor 51. As a result, the crop 100 transported by the belt conveyor 51 moves so as to fall on the second transport belt 62 in the fixed conveyor portion 61A of the belt conveyor 61, and is easily delivered reliably.
Reference numeral 25 in FIG. 6 is an output shaft that outputs rotational power from an engine (not shown). The rotational power obtained from the output shaft 25 is transmitted to, for example, a drive unit such as the belt conveyor 51 of the first belt conveyor 5 and the belt conveyor 61 of the second belt conveyor 6 via a drive transmission device (not shown). Used.

On the other hand, the movable conveyor portion 61B is a portion of the belt conveyor 61 that exists in the region from the position at the transfer end of the fixed conveyor portion 61A to the position reaching the accommodating device 4, and the end portion closer to the fixed conveyor portion 61A is formed. It is a part that is arranged so that it can swing as a fulcrum.

The movable conveyor portion 61B is arranged in a state where it is oscillatingly connected to the transport end side portion of the fixed support frame 63 in the fixed conveyor portion 61A via a rotary support shaft 65 and is inserted into a part of the accommodating device 4. The movable support frame 64 is provided. Similar to the case of the fixed support frame 63, the movable support frame 64 also has a pair of side frames arranged so as to face each other at a substantially constant interval in the front-rear direction of the machine body 2, and a pair of side frames. It is composed of a connecting frame including a bottom frame for connecting the above.
Further, the movable conveyor portion 61B includes a plurality of support rotating bodies 76A and 76B that rotatably support the portion passing through the movable conveyor portion 61B on the conveyor end side of the second conveyor belt 62 with respect to the movable support frame 64. A conveyor guide 77 or the like is arranged between the support rotating bodies 76A and 76B to support and guide the movement of the second conveyor belt 62 during rotation. The support rotating bodies 76A and 76B are sprockets or the like that mesh with the transmission chains 621 and 621 to rotatably support them.
Further, the movable conveyor portion 61B is formed so that the upper portion of the movable support frame 64 projects upward from the transport surface 57 of the second transport belt 62 to prevent the crop 100 from protruding or falling off from the second transport belt 62. It is used as a side wall (FIG. 8 (A)).

Further, the movable conveyor portion 61B includes an elevating cylinder 81 (one end portion) that expands and contracts with respect to the movable support frame 64 so as to swing the movable support frame 64 in the vertical direction with the rotary support shaft 65 as a fulcrum, and rotation. A motor 82 that generates power, a drive transmission device 83 that transmits the rotational power of the motor 82 to the second conveyor belt 62, and the like are also arranged.

As shown in FIGS. 4 and 6, for example, the upper end of the piston rod 81a that appears and disappears at the upper end of the elevating cylinder 81 during expansion and contraction of the elevating cylinder 81 is closer to the rotation support shaft 65 of the movable support frame 64. While rotatably attached to the bottom surface (bottom frame) of the cylinder 81, the lower end of the cylinder 81 is on the left side of the machine 2 with respect to the upper end of the work floor (91) described later. It is rotatably attached. As a result, the elevating cylinder 81 is arranged in an inclined state so as to be slightly tilted to the right side of the machine body 2 as a whole when it is in the most contracted state.
Further, as the elevating cylinder 81, for example, an electric cylinder is applied. The elevating cylinder 81 is operated, for example, by operating a pedal 89 installed on the work floor (91). The pedal 89 includes a pedal for ascending operation and a pedal for descending operation. The movable conveyor unit 61B swings around the rotary support shaft 65 as a fulcrum by operating the pedal 89 to operate the elevating cylinder 81.

As shown in FIG. 6 and the like, the drive transmission device 83 includes an output gear 84 attached to the output shaft of the motor 82 and a shaft of the drive support rotating body 76B for driving the second transport belt 62 (transmission chain 621). It is composed of a drive gear 85 attached to the drive gear 85, a transmission chain 86 that rotates around the output gear 84 and the drive gear 85, and an exterior cover 87 that covers and protects them.
The motor 82 is attached to the bottom surface of the movable support frame 64 slightly in front of the transport end via a mounting bracket or the like. The motor 82 at this time is arranged at a position lower on the front side of the transfer end of the second transfer belt 62 when viewed as a whole of the second belt transfer device 6. Further, the motor 82 or the mounting bracket to which the motor 82 is fixed is mounted so that the mounting position with respect to the movable support frame 64 can be adjusted via a long hole long in the direction of approaching and separating from the driving gear 85. ..

Further, the movable conveyor unit 61B is arranged so as to pass through the sorting work area 9. Further, the movable conveyor unit 61B constitutes a part of the sorting work area 9.

The sorting work area 9 includes a work floor 91 provided in an area of the floor frame 23 of the machine body 2 behind the cockpit box 13 of the control unit 12, and a work floor 91 on the rear side of the movable conveyor unit 61B. It is provided with a sorting work seat 92 provided at a position. In FIG. 4, the sorting work seat 92 is not shown.
In the sorting work area 9, the sorting worker who is seated on the sorting work seat 92 on the work floor 91 is damaged or deformed from the crop 100 when it is conveyed by the second transport belt 62 in the movable conveyor unit 61B. Work such as selecting products that are recognized as defective products due to factors such as, etc., and grasping and removing them by hand is performed. Reference numeral 95 in FIGS. 6 and 7 is a handle that is grasped and used by the sorting operator. The handle 95 is provided on the rear side frame of the movable support frame 64.

Next, as shown in FIGS. 1, 3, 4, 4 and the like, the storage device 4 mounts a storage bag 48 for storing the crop 100 transported and sent out from the second belt transport device 6. It is composed of a mounting table 41 and a hanger arm 45 or the like that suspends and holds the opening 48a of the storage bag 48 mounted on the mounting table 41 during the storage operation.

The mounting table 41 is arranged so as to project from the work floor 91 of the sorting work area 9 to the right side of the machine body 2 at a position below the transfer end of the movable conveyor portion 61B in the second belt transfer device 6.
Further, the mounting table 41 is made of a plate material having a rectangular planar shape, and is rotatably attached to a support shaft 42 provided so as to project from the right end of the machine body 2. Further, the mounting table 41 can be switched from a horizontal reference posture to a forward leaning posture or a backward leaning posture about the support shaft 42 by a posture switching mechanism 43 composed of an electro-hydraulic cylinder or the like.
As a result, in the storage device 4, the storage bag 48, which stores the crop 100 after harvesting and becomes heavy, is easily slid on the field 200 or the like by sliding it from the mounting table 41 in the forward leaning posture or the backward leaning posture. Can be taken down.

The hanger arm 45 is provided so as to stand up from the side surface of the end portion of the movable support frame 64 on the second belt transport device 6 which is the transport end side.
As shown in FIG. 4, the hanger arm 45 is suspended from a fixed frame 46a fixedly attached to the end side surface of the movable support frame 64 and a support shaft 46c at a raised upper end portion of the fixed frame 46a. The movable frame 46b is attached so as to be able to fit and swing, and the storage bag 48 is suspended by being scratched by a hook hole or the like attached to both ends of the movable frame 46b and formed in the opening 48a of the storage bag 48. It is composed of a lowering hook 47.

The hanger arm 45 can hold the storage bag 48 mounted on the mounting table 41 in a state of being open to the transport end of the movable conveyor portion 61B by hooking the opening 48a on the hook 47. Further, in the storage bag 48 suspended and held by the hanger arm 45, since the movable frame 46b moves with respect to the fixed frame 46a with the support shaft 46c as a fulcrum, the posture of the opening 48a can be arbitrarily adjusted. Can be done. As a result, in the vegetable harvester 1, the work of accommodating the crop 100 sent out from the movable conveyor portion 61B of the second belt conveyor 6 into the accommodating bag 48 is easily and accurately performed.

Then, in the vegetable harvester 1, as shown in FIGS. 4 to 7, the crop 100 of the second transport belt 62 is mounted on one second transport belt 62 constituting the second belt transport device 6. The transport surface 66 at the time of transport is one recessed transport surface 67 that moves in a recessed state in a part of the section Rp including the delivery place Tp of the crop 100 from the first belt transport device 5. It is arranged.

Here, the delivery place Tp of the crop 100 is such that the crop 100 moves from the belt conveyor 51 of the first belt conveyor 5 to the belt conveyor 61 (fixed conveyor portion 61A) of the second belt conveyor 6 and is delivered. It is a place to become. In this embodiment, as shown in FIG. 7, the delivery location Tp is set to at least the range from the roller rear end 52r of the cleaning processing roller 52 to the roller front end 52f in the transport direction E1 of the belt conveyor 51. ing.

Further, in a part of the section Rp including the delivery place Tp, the section corresponding to the delivery place Tp in the belt conveyor 61 (fixed conveyor portion 61A) of the second belt transfer device 6 is inside the belt conveyor 61 in the transfer direction E2. It is a section including. In this embodiment, as shown in FIG. 7, for a part of the section Rp, the delivery location Tp is set as a section existing at a position relatively biased toward the upstream side of the transport direction E2 of the belt conveyor 61. There is.

The second conveyor belt 62 in the second belt conveyor 6 has its transport surface 66 conveyed in the fixed conveyor section 61A, as shown in FIGS. 4, 6, 9, and the like. After starting as a fixed horizontal transport surface 66h1 that is fixed and extends from the starting end side in a substantially horizontal state, it extends through the recessed transport surface 67 so as to continue to incline upward to reach the movable conveyor section 61B, and then reaches the movable conveyor section 61B. It is arranged in such a state that it extends from the transfer start end side to the transfer end side in a substantially horizontal state and ends as a movable movable horizontal transfer surface 66h2.
At this time, the movable horizontal transport surface 66h2 is set to be higher than the fixed horizontal transport surface 66h1. Reference numeral te in FIG. 9 indicates a transfer end point.

In fact, in order to arrange the second conveyor belt 62 so as to be such a conveyor surface 66, as shown in FIGS. 6, 9 and the like, the transmission chain 621 is located on the conveyor start end side in the fixed conveyor portion 61A. While being hung around the sprocket of a support rotating body 72A so as to be supported from below, the sprocket of the support rotating body 76A on the transport start end side of the movable conveyor portion 61B and the sprocket of the support rotary body 76B on the transport end side thereof. It is hung so that it can be supported from below.

At this time, in the movable conveyor portion 61B, the support rotating body 76A and the supporting rotating body 76B are provided at positions where the support rotating bodies 76B have substantially the same support height. As a result, the transfer surface 66 of the second transfer belt 62 is a terminal horizontal transfer surface 66h2 between the support rotating body 76B and the support rotating body 76A in the movable conveyor portion 61B.

Further, as shown in FIGS. 6 and 9, the second conveyor belt 62 has a transmission chain 621 of a part of the section Rp including the delivery location Tp in which the recessed conveyor surface 67 is formed in the fixed conveyor portion 61A. While being supported from below by the pulley of the support rotating body 72A arranged at the starting point ds, the supporting rotating body is arranged in front of the transport starting end in the movable conveyor portion 61B by passing through the end point de of a part of the section Rp. It is supported by being pressed from above by a pulley of 72C. Finally, the transmission chain 621 of the second transport belt 62 is supported by being pressed from above by the pulley of the support rotating body 72B arranged at the point db corresponding to the bottom of the recessed transport surface 67.

At this time, in the fixed conveyor portion 61A, the support rotating body 72A is provided at a position where the support rotating body 72A has substantially the same support height as the support rotating body 71A at the transfer start end. As a result, the transfer surface 66 of the second transfer belt 62 is a fixed horizontal transfer surface 66h1 between the support rotating body 71A and the support rotating body 72A in the fixed conveyor portion 61A.
Further, in the fixed conveyor portion 61A, the support rotating body 72B is provided at a position where the support rotating body 72B has a lower supporting height (holding height) than the supporting rotating body 72A, and the supporting rotating body 72C has a higher supporting height than the supporting rotating body 72A. It is provided at a position where it becomes a vertical (pressing height). As a result, the second transport belt 62 has a recessed transport surface in which the transport surface 66 is pushed downward by the support rotary body 72B between the support rotating body 72A and the support rotating body 72C in the fixed conveyor portion 61A. It is 76.

Further, the second conveyor belt 62 is supported in the fixed conveyor portion 61A so as to be recessed downward between the support rotating bodies 72A, 72B, 72C, and is substantially the same on the lower side thereof. It is supported by the support rotating bodies 71B, 71C, 71D so as to be in a state of being recessed downward. The support rotating body 71B is arranged at a position substantially directly below the support rotating body 72A, and supports the second transport belt 62 from below. The support rotating body 71C is arranged at a position substantially directly below the support rotating body 72B, and supports the second transport belt 62 in a state of being pressed from above. The support rotating body 71D is arranged at a position diagonally downward to the right of the support rotating body 72C and at a position close to the lowermost portion of the support rotating body 76A of the movable conveyor portion 61B at a support height substantially equal to that of the second transport belt. 62 is supported from below.

In the second belt transport device 6, as shown in FIGS. 6, 7, and the like, the start end support rotating body 71A arranged on the transport start end side in the support frame 63 of the fixed conveyor portion 61A is placed in the left-right horizontal direction of the machine body 2. A tension adjusting mechanism 68 is provided which is arranged in a displaceable state and adjusts the tension applied to the second transport belt 62 (the transmission chain 621) by displacing the starting end support rotating body 71A.

The tension adjusting mechanism 68 includes a support arm whose one end is fixed to the bearing of the starting end support rotating body 71A. The support arm is displaceably attached to the attachment portion of the support frame 63. Further, the support arm has a thread formed at the other end, and a bolt is attached to the threaded portion at the other end with a coil spring interposed between the support arm and the attachment portion of the support frame 63.
The tension adjusting mechanism 68 has a mechanism capable of adjusting the tension applied to the transmission chain 621 by displacing the position of the bearing of the starting end support rotating body 71A via the support arm by changing the tightening position of the bolt. It has become.
Further, as shown in FIGS. 2 and 3, the tension adjusting mechanism 68 is arranged in a state of being exposed to the left end of the machine body 2 in the fixed conveyor portion 61A of the second belt transport device 6.

Further, as shown in FIGS. 6, 9 and the like, the second transport belt 62 has a downward slope portion 67a and a crop whose recessed transport surface 67 tilts downward and moves at least at the delivery place Tp of the crop 100. It is arranged so as to be a transport surface having an ascending slope portion 67b that tilts upward and moves after passing through the delivery place Tp.
The recessed transport surface 67 moves, for example, with a force that causes the crop 100 to overrun when delivered from the delivery location Tp on the belt conveyor 51 to the second transport belt 62, or is conveyed by the second belt transport device 6. From the viewpoint of suppressing the amount of variation when the amount is squeezed, the height difference between the point where the descending slope portion 67a begins to incline (the starting point of the recessed transport surface) ds and the most recessed bottom portion (bottom) db. However, it is preferable to set the value to be 4 to 8 cm or more in consideration of, for example, the thickness of the crop to be harvested or more.

Further, with respect to the second transport belt 62, as shown in FIGS. 6 and 9, the transport surface of the ascending slope portion 67b on the recessed transport surface 67 is inclined downward from the descending slope portion 67a on the recessed transport surface 67. The point (starting point of the dented transport surface) is arranged so as to be extended to the point ue above the transport surface height of ds. Reference numeral de in FIG. 9 is a point (end point of the recessed transport surface) having the same height as the transport surface height of the start point ds in the descending slope portion 67a of the ascending slope portion 67b on the recessed transport surface 67.
That is, the recessed transport surface 67 in this embodiment reaches the point ue at the height of the transport surface, which is also the transport start end of the movable conveyor portion 61B, after the transport surface of the ascending slope portion 67b passes through the end point de of the recessed transport surface. It is connected to the ascending transport surface 66u that is continuously inclined upward in the section.

Next, the operation and the like of the vegetable harvester 1 will be described.

In the vegetable harvester 1, the operator who gets into the control unit 12 runs for the harvesting work and operates each part, and the auxiliary sorting worker who gets on the sorting work area 9 performs the sorting work of the crop 100. Will be.

First, the vegetable harvester 1 is moved forward along the ridge with the crop 100 in the field 200 where the crop (carrot) 100 to be harvested is planted, and the harvesting device 3 is started. As a result, the harvesting work of the crop 100 is started.

At this time, in the harvesting device 3, the raising device 33 of the pull-out transfer device 31 raises the foliage portion of the crop 100 in the field 200 upward from the laid-down state, and the rotating holding belts 32A and 32B of the pull-out transfer device 31 are the crops. The foliage portion of 100 is sandwiched and transported toward the rear upper part of the machine body 2. As a result, the crop 100 is pulled out from the field 200 and then transported to the rear upper part of the machine body 2.

Subsequently, in the harvesting device 3, the rotating transport belts 35A and 35B of the foliage processing device 34 hold the crop 100 (the foliage portion of the crop 100) so as to take over from the holding belts 32A and 32B, and aim toward the horizontal rear side of the machine body 2. The rotary cutting blade 36 of the foliage processing device 34 cuts between the foliage portion and the root vegetable portion of the crop 100. As a result, the root vegetable portion of the crop 100 is separated from the foliage portion.

At this time, the foliage portion of the crop 100 is transported to its terminal portion by the transport belts 35A and 35B, then is naturally dropped and dropped on the discharge table 38, and is slid down to the field 200 via the discharge table 38.
On the other hand, the root vegetable portion of the crop 100 is dropped onto the belt conveyor 51 of the first belt transport device 5, which is also a cleaning device in the foliage processing device 34, by free fall after cutting.

Subsequently, in the first belt transfer device 5, as shown in FIG. 5, the first transfer belt 56 rotating in the transfer direction E1 in the belt conveyor 51 falls on the transfer surface 57 of the first transfer belt 56. The foliage portion of the crop 100 to be carried is transported so as to be in contact with the cleaning processing roller 52 on the right side of the machine body 2. As a result, the root vegetable portion of the crop 100 is cleaned by the belt conveyor 51 and the cleaning roller 52 in cooperation with each other, such as removing residual soil and removing residual leaves.

Further, in the first belt transport device 5, the belt conveyor 51 and the cleaning processing roller 52 cooperate with each other to gradually guide the root vegetable portion of the crop 100 to be cleaned to the right front of the machine body 2. As a result, as shown in FIG. 5, the root vegetable portion of the crop 100 is finally transferred from the delivery location Tp in the belt conveyor 51 to the second conveyor belt in the belt conveyor 61 (fixed conveyor portion 61A) of the second belt conveyor 6. 62 Moved up and handed over.

Subsequently, in the second belt conveyor unit 6, one second conveyor belt 62 that receives the rotational power of the motor 82 from the drive transmission device 83 in the fixed conveyor unit 61A and the movable conveyor unit 61B and rotates in the transport direction E2. The crop 100 delivered from the first belt conveyor 5 is conveyed so as to be moved from the fixed conveyor unit 61A toward the movable conveyor unit 61B constituting a part of the sorting work area 9.

At this time, as shown in FIGS. 6 and 9, after the transport surface 66 of the second conveyor belt 62 becomes a recessed conveyor surface 67 from the fixed horizontal conveyor surface 66h1 on the conveyor start end side in the fixed conveyor portion 61A. It becomes the ascending transport surface 66u, and subsequently moves in the movable conveyor unit 61B while sequentially changing the state so as to be the movable horizontal transport surface 66h2 on the transport end side.

On the other hand, the root vegetable portion of the crop 100 is distributed to the transport surface 66 composed of the transport bar 622 of the second transport belt 62 so that one or a plurality of root vegetables are present in the area surrounded by the front and rear receiving plates 623. It is carried on top of. Further, even if the root vegetable portion of the crop 100 is likely to move to the rear (upstream side) of the transport direction E2 in the ascending transport process such as the ascending slope portion 67b of the recessed transport surface 67 and the ascending transport surface 66u, the receiving plate 623 Since it is in a state of being received by, it is surely transported diagonally upward.

Further, in the second belt conveyor 6, the second conveyor belt 62 that forms and moves the movable horizontal conveyor surface 66h2 in the movable conveyor portion 61B conveys the root vegetable portion of the crop 100 so as to pass through the sorting work area 9.
In the sorting work area 9, a plurality of sorting workers seated on the sorting work seat 92 on the work floor 91 as described above are transported by the movable horizontal transport surface 66h2 of the second transport belt 62 in the movable conveyor unit 61B. From the 100 crops in the above, the ones recognized as defective products are selected, grasped by hand, and removed.

Further, in the second belt transport device 6, the second transport belt 62 rotating in the transport direction E2 in the movable conveyor unit 61B transports the remaining crop 100 after passing through the sorting work area 9 to the transport end, and then transports the crop 100. At the end, it is sent to the accommodating device 4.

Subsequently, in the accommodating device 4, the accommodating bag 48 is opened in advance by hooking the opening 48a on the hook 47 of the hanger arm 45 so as to face the transport end of the movable conveyor portion 61B before starting the harvesting work. Preparations are made for the containment work of being placed on the mounting table 41 and set.
As a result, the crop 100 delivered from the transport end of the second transport belt 62 in the movable conveyor section 61B of the second belt transport device 6 is sequentially housed in the storage bag 48 set in the storage device 4 through the opening 48a. Ru.

In the accommodating device 4, when the accommodating work progresses and the crop 100 accommodated in the accommodating bag 48 exceeds a certain amount, the auxiliary worker steps on the pedal 89 with his / her foot to operate the elevating cylinder 81. By operating the movable conveyor portion 61B so as to extend it, the movable conveyor portion 61B is swung around the rotary support shaft 65 so that the transport end side of the movable conveyor portion 61B is raised to a required height.
At this time, as shown in FIGS. 4 and 6, the elevating cylinder 81 is arranged in a state of being tilted to the right at a position closer to the fixed conveyor portion 61A of the work floor 91 when viewed from the rear of the machine body 2. Therefore, the load when swinging the movable conveyor portion 61B in the ascending direction with the rotating support shaft 65 as the fulcrum is arranged so that the elevating cylinder 81 is placed vertically on the work floor 91 or tilted to the left. Compared to the case where the cylinder is used, it is less likely to interfere with the feet of the worker performing the sorting work, and does not interfere with the sorting work.
Further, in the storage device 4, when the storage bag 48 is full of the crop 100, the vegetable harvester 1 is stopped, the full storage bag 48 is unloaded from the mounting table 41, and then the storage device 4 is used. The empty storage bag 48 is set again and the harvesting work is resumed.

As described above, in the vegetable harvester 1, the crop 100 can be harvested from the field 200, subjected to foliage treatment and cleaning treatment, sorted, and then stored in the storage bag 48 in the storage device 4.

Further, in the vegetable harvester 1, when the crop 100 is moved from the delivery place Tp in the belt conveyor 51 of the first belt transfer device 5 to the belt conveyor 61 of the second belt transfer device 6 and is delivered, the crop 100 is delivered. Moves as follows.
That is, as shown in FIGS. 2, 4, 8 (B) and the like, the crop 100 at this time is a belt conveyor that is one step lower than the transport surface 57 of the first transport belt 56 in the belt conveyor 51. It moves so as to be slightly dropped on the transport surface 66 of the second transport belt 62 in the fixed conveyor portion 61A of 61. Further, as shown in FIGS. 3 to 7, the crop 100 at this time moves so as to be sent out to the recessed transport surface 67 of the second transport belt 62.

As a result, the crop 100 is delivered so as to fall on the recessed transport surface 67 on the transport surface 66 of the second transport belt 62, which is one step lower than the delivery location Tp, and then once delivered on the recessed transport surface 67. After being transported so as to descend, it is switched so as to rise without interruption, and is temporarily retained in the recessed portion of the recessed transport surface 67 to decelerate and be transported in a scattered state. become. Therefore, the momentum of the crop 100 when it is delivered is temporarily reduced, and the crop 100 is easily moved so as to be temporarily dispersed without passing due to the impact of the head portion on the recessed transport surface 67. ..

Therefore, in the vegetable harvester 1, when the harvested crop 100 is handed over from the first belt transport device 5 to the second belt transport device 6, the crop 100 moves at such a momentum that it overruns, or more than necessary. The impact is suppressed, and the amount of the crop 100 when transported by the second belt transport device 6 is also suppressed.
In particular, since the amount of the crop 100 when transported by the second belt transporting device 6 is suppressed from being dispersed, the sorting work performed during the transporting of the second belt transporting device 6 becomes easier and the sorting unevenness occurs. It is also possible to suppress the occurrence.

Further, in the vegetable harvester 1, as shown in FIGS. 6 and 9, the recessed transport surface 67 of the second transport belt 62 is a transport surface having a simple shape having a descending slope portion 67a and an ascending slope portion 67b. Therefore, it becomes possible to suppress complicated movement of the crop 100 when passing through the recessed transport surface 67, and therefore, the above-mentioned suppressing effect when the crop 100 is delivered to the recessed transport surface 67 of the crop 100 can be easily suppressed. The crop 100 can be satisfactorily transported while being obtained.

Further, in the vegetable harvester 1, the point (starting point) ds where the inclined surface of the ascending slope portion 67b on the recessed transport surface 67 of the second transport belt 62 is connected to the ascending transport surface 66u and the inclination of the descending slope portion 67a is started. Since it is in a state of being extended to a point ue above the height of the dent, for example, the surplus of the crop 100 excessively accumulated on a part of the transport surface 66 of the second transport belt 67 is the recessed transport surface 67. There is an increased chance of moving over the receiving plate 623 between the ascending transport surfaces 66u including the inclined surface in the ascending slope portion 67b and shifting to the rear side of the transport. Therefore, it is possible to more reliably suppress the variation in the amount of the crop 100 when it is transported by the second transport belt 62.

In addition to this, in the vegetable harvester 1, the rotational power of the motor 82 is transmitted to the drive support rotating body 76B of the second transport belt 62 via the chain type drive transmission device 83 without being directly connected. Therefore, even when a load or impact is applied to the second transport belt 62 during operation, it is possible to prevent the load or impact from being absorbed by the transmission chain 86 in the drive transmission device 83 and directly reaching the motor 82. .. Further, since the motor 82 is arranged on the bottom surface portion of the movable conveyor portion 61B, which is a lower portion on the front side of the transport end of the support frame 63, there is no possibility of hindering the sorting work in the sorting work area 9.

Further, in the vegetable harvester 1, the tension applied to the second conveyor belt 62 (transmission chain 621) of the second belt conveyor 5 is displaced by displacing the position of the bearing of the support rotating body 71A on the transport start end side. As shown in FIGS. 2 and 3, the tension adjusting mechanism 68 for adjusting is arranged in a state of being exposed at the left end of the machine body 2 in the fixed conveyor portion 61A. As a result, the tension applied to the second transport belt 62 can be easily adjusted because the presence of peripheral devices and parts such as the pull-out transport device 31 and the first belt transport device 5 is less likely to be an obstacle.

[Modification example]
The recessed transport surface 67 in the second transport belt 62 of the second belt transport device 6 is not limited to the configuration example exemplified in the embodiment, and is, for example, a horizontal bottom surface between the descending slope portion 67a and the ascending slope portion 67b. It may be composed of a transport surface having a portion.
Further, the drive roller 54 of the first belt transfer device 5, and thus the first transfer belt 56, may be configured so that the drive roller 54 rotates by receiving rotational power from a drive device such as a motor other than the engine.
Further, the second conveyor belt 62 constituting the second belt conveyor 6 is not limited to the embodiment exemplified above, and other embodiments of the conveyor belt may be applied.
Further, the drive transmission device 83 may be a device of a type configured by using a transmission belt instead of the transmission chain.

The present invention is not limited to a harvester that harvests and sorts carrots as a crop 100, and can be applied to, for example, a harvester that harvests and sorts other crops (root vegetables such as radish).

1 Vegetable harvester 3 Harvesting device 4 Storage device 5 1st belt transfer device 6 2nd belt transfer device 9 Sorting work area 48 Storage bag (an example of a container)
57 Transport surface of the first belt transport device 62 Second transport belt (an example of one transport belt)
66 Transport surface 67 Depressed transport surface 67a Down slope 67b Ascending slope 68 Tension adjustment mechanism 71A Start support rotating body 76B Drive support rotating body 82 Motor 100 Crop 200 Crop 200 Field E Transport direction Tp Crop delivery location Rp Section including delivery location

Claims (5)

Harvesting equipment (3) for harvesting crops from the field,
A storage device (4) for accommodating the crops harvested by the harvest device (3) in a container (48), and
The first belt transporting device (5) that transports the crops harvested by the harvesting device (3) so as to be cleaned.
The crops are arranged in parallel with the first belt transport device (5) so that the crops are delivered from the first belt transport device (5), and the delivered crops pass through the sorting work area (9). A second belt transporting device (6) that transports the products from being made to the accommodating device (4) until they are sent out to the accommodating device (4).
Equipped with
In the second belt transport device (6), the transport surface (66) when the crop is placed and transported includes a part of the transport surface (Tp) of the crop from the first belt transport device (5). It is composed of one transport belt (62) arranged so as to be one recessed transport surface (67) that moves in a recessed state in a section (Rp) .
The recessed transport surface (67) tilts upward after passing through the descending slope portion (67a) that moves downward at the delivery place (Tp) of the crop and the delivery place (Tp) of the crop. A harvester (1) having a transport surface having an ascending slope portion (67b ). In the transport belt (62) of the second belt transport device (6), the transport surface of the ascending slope portion (67b) on the recessed transport surface (67) is the descending slope portion (67) on the recessed transport surface (67). 67a) The harvester according to claim 1, wherein the harvester is arranged so as to extend to a point (up) higher than the height of the point (ds) where the slope starts to be lowered below . In the transport belt (62) of the second belt transfer device (6), the transfer surface (66h1) in the region parallel to the first belt transfer device (5) is the transfer surface of the first belt transfer device (5). The harvester according to claim 1 or 2, wherein the harvester is arranged so as to be below . The second belt transport device (6) is a drive support rotating body (76B) that rotatably supports and drives the transport belt (62) at a position on the transport end side thereof, and transport of the transport belt (62). It has a motor (82) arranged in a lower portion on the front side of the end, and the power of the motor (82) is transmitted to the drive support rotating body (76B) via a chain or belt type drive transmission means (83). The harvester according to any one of claims 1 to 3, wherein the harvester is configured to transmit . The second belt transport device (6) can displace the start end support rotating body (71A) that rotatably supports the transfer belt (62) at the position on the transport start end side, and the start end support rotary body (71A). The invention according to any one of claims 1 to 4, further comprising a tension adjusting mechanism (68) that adjusts the tension applied to the transport belt (62) by arranging and displacing the conveyor belt (62) . Harvester.

Images