JP2009268357A - Crop harvester - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a crop harvester in which a harvesting portion for harvesting crops from a field, and a recovery portion having a support base for a container for recovering the crops from the harvesting portion are disposed on the self-propelled machine frame, and which can support the container outside the machine frame and simultaneously move and store the container easily. <P>SOLUTION: In the crop harvester, a pivot axis P for swingably and vertically movably supporting a supporting base 41 in a lowered use attitude projecting outside the self-propelled machine frame or in a lifted stored attitude is disposed on the inside of an outermost side edge 4a of the self-propelled machine frame so that the support base 41 is placed inside the self-propelled machine frame in the lifted stored attitude. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a crop harvester in which a self-propelled machine body is provided with a harvesting unit that harvests a crop from a field and a recovery unit having a support for a container that collects the crop from the harvesting unit.

  As the crop harvesting machine, there has been a root vegetable harvesting machine described in Patent Document 1, for example. In the root crop harvesting machine described in Patent Document 1, a machine body supported by a traveling device composed of left and right crawlers, a harvesting section provided on a lateral side part of the machine body, and a housing part provided on the other lateral side part of the machine body (Corresponding to the recovery unit). The storage unit includes a bucket (corresponding to a support base) that supports the bottom of the harvest bag as a container.

JP 2007-190034 (paragraphs [0013], [0017], FIG. 1-4)

In this type of crop harvesting machine, the support table is swingably supported in the lowered use posture and the raised storage posture, and the support table in the lowered use posture is configured to protrude out of the self-propelled machine body. That is, the container can be supported outside the machine during work, and the support can be stored closer to the inside of the machine than during work during traveling and storage.
However, if the support base that has been raised and stored is projected to the outside of the machine body, it is difficult to move and store in a narrow passage or space due to the protrusion of the support base to the outside of the machine body.

  An object of the present invention is to provide a crop harvesting machine that can support a container outside the machine body and that can be easily moved and stored.

The first aspect of the present invention is a crop harvester in which a self-propelled aircraft has a harvesting section for harvesting a crop from a field and a recovery section having a support for a container for recovering the crop from the harvesting section.
Self-propelled so that the support base can enter the self-propelled machine body in the ascending and retracting posture while supporting the pivot axis pivotably supporting the descending use posture and the rising and retracting posture projecting out of the self-propelled aircraft. It is located inside the outermost edge of the fuselage.

According to the configuration of the first aspect of the present invention, when the support base is in the lowered use posture, the support base protrudes out of the self-propelled aircraft body, and the container can be supported outside the self-propelled aircraft body.
On the other hand, when the support base is in the raised storage posture, the support base enters the inner side of the outermost edge of the self-propelled machine body, and the support base does not protrude outward from the self-propelled machine body.

  Therefore, while supporting the container outside the self-propelled aircraft, it is easy to perform work in terms of space, etc., but the support base is stored without protruding outside the self-propelled aircraft so that it can be easily moved even in narrow passages or storage locations. Can be stored.

In the second aspect of the present invention, a conveyor that conveys the crop from the harvesting unit to the recovery unit is provided so as to be swingable up and down.
A detachable connector for connecting the conveyor and the support base is provided so that the support base is lifted by the conveyor.

  According to the configuration of the second aspect of the invention, when the conveyor is moved up and down, the support body is moved up and down by the conveyor via the coupler, and is moved up and down into the raised storage posture and the lowered usage posture.

  Therefore, the conveyor and the support base can be moved up and down all at once, and the switching to the storage posture and the use posture can be performed easily and quickly. Further, when the conveyor is moved up and down by a driving mechanism, it can be more easily performed by using the driving force.

  In this 3rd invention, the container support part which suspends and supports the said container in the said conveyor is provided, and it has comprised so that the said connection tool may be connected with the said container support part of the said conveyor.

  According to the structure of this 3rd invention, a connector can be connected to a conveyor using a container support part as a connection means.

  Therefore, what can raise and lower the conveyor and the support base at once can be obtained simply by using the container support portion as the connecting means.

Embodiments of the present invention will be described below with reference to the drawings.
FIG. 1 is a side view of an entire crop harvester according to an embodiment of the present invention. FIG. 2 is a plan view of the entire crop harvester according to the embodiment of the present invention. As shown in these drawings, the crop harvesting machine according to the embodiment of the present invention is configured to be self-propelled by a pair of left and right crawler traveling devices 1 and 1, and is provided with a prime mover provided with an engine 2, A self-propelled aircraft having a driving unit provided with a driver's seat 3 positioned above the engine 2, a harvesting unit 10 provided on the left lateral side of the self-propelled aircraft, and a lower part of the rear part of the harvesting unit 10 A transport unit 20 provided on the right side of the self-propelled machine body, and a support base 41 provided on the right lateral side of the self-propelled machine body. Recovery unit 40.

This crop harvester performs carrot harvesting.
That is, the harvesting unit 10 causes ginseng foliage by a pair of left and right pulling devices 11, 11, and ginseng foliage that has become easy to pull out by applying vibration by a soil unraveling blade 12 that has entered the soil on the side of the ginseng. Is picked up by the pulling belts 13 and 13 composed of a pair of left and right endless rotating belts, lifted and conveyed rearward of the self-propelled machine body, and then carrots are picked up from the field and harvested. The harvesting unit 10 is self-propelled in a suspended state by hanging and transporting ginseng stems and leaves harvested by the pulling belt 13 by foliage removal belts 14 and 14 comprising a pair of left and right endless rotating belts. It is conveyed toward the rear of the machine body, the foliage is cut by the rotary cutter 15 to separate the foliage and the carrot, the ginseng is dropped on the conveyor 21 of the conveying unit 20, and the foliage is moved behind the rotary cutter 15 by the foliage removal belt 14. To the chute 16, and the chute 16, the conveyance end side of the conveyor 21, and the drop guide 17 are discharged to the rear side of the self-propelled machine body.

  The transport unit 20 transports the carrots toward the rear side of the self-propelled machine body by the conveyor 21, and feeds the carrots that have reached the terminal end of the transport from the conveyor 21 to the side of the self-propelled machine body by the lateral feed roller 22. To the sorting conveyor 31.

  In addition to the sorting conveyor 31, the sorting unit 30 includes a sorting worker seat 32 provided on the rear side of the sorting conveyor 31 and a floor plate 33 provided on the lower front side of the seat 32. ing.

  In other words, the sorting unit 30 is suitable for harvesting carrots having characteristics such as size and shape suitable for harvesting when the sorting operator looks at the carrots that are transported sideways by the sorting conveyor 31 by the sorting conveyor 31. The harvested non-conforming carrots are manually extracted from the sorting conveyor 31, and the harvesting suitable carrots are left on the sorting conveyor 31 and conveyed to the collection unit 40.

FIG. 4 is a rear view of the sorting unit 30 and the collecting unit 40. FIG. 3 is a side view of the collection unit 40. As shown in these figures and FIG. 2, the collection unit 40 includes a container receiving support 41 that is positioned below the transfer terminal of the sorting conveyor 31 and a container provided at the terminal of the sorting conveyor 31. And a support portion 42.
In other words, the collection unit 40 is configured such that the container 50 made of a cloth sewn so as to have an opening 51 at the upper end is received and supported by the support base 41 on the bottom side and supported by the container support unit 42 on the opening side. The carrots, which are installed below the sorting conveyor 31 and selected by the sorting unit 30 as harvest-adapted carrots, are dropped from the sorting conveyor 31 into the containers 50 and collected.

  That is, as shown in FIGS. 2, 3, and 4, the container support 42 is a self-propelled longitudinal support rod connected to a pair of main frames 34 a and 34 a of the sorting conveyor 31 via a connection arm 43. 44 and a hanger body 45 supported at both ends of the support rod 44. Each hanger body 45 is provided with a hanging metal fitting 46 provided at both ends thereof.

  The container support portion 42 engages both hanging tools 46 of one hanger body 45 with one of a pair of lifting belts 52, 52 provided in the container 50, and attaches both hanging tools 46 of the other hanger body 45 to the container 50. By engaging with the other lifting belt 52, the opening side of the container 50 is suspended and supported.

  By fixing the opening edge part of the container 50 to the rod part 45a of each hamburger body 45 by using a fixing tool 47, the container support part 42 keeps the opening 51 of the container 50 in an appropriate open state. To do.

  FIG. 6 shows a sectional structure of the sorting conveyor 31. As shown in FIGS. 2 and 4, the sorting conveyor 31 includes the pair of left and right main frames 34a and 34a, and the conveying start end of the conveyor frame 34 having the pair of left and right main frames 34a and 34a. And an end ring body 35 that is provided at the transport terminal end of the conveyor frame 34 so as to be freely rotatable. The start end ring body 35 and the end ring body 36 are A conveyor guide ring body 37 disposed between the conveyor frame 34 and supported by the conveyor frame 34 so as to be freely rotatable, and disposed between the start ring body 35 and the end ring body 36. Two return guide rings 38, 38 supported on the return path side of the frame 34 so as to freely rotate, and one endless conveyor belt 39 wound around each of the rings 35, 36, 37, 38 is provided. prepare for It is form.

  A frame part 34r on the conveyance end side of the conveyor frame 34 is configured to swing up and down around the rotation axis 37a of the conveyance guide ring 37 with respect to the frame part 34f on the conveyance start end side. Of these, the conveyance end side portion 31R including the end ring body 36 and the container support portion 42 is swung around the rotation axis 37a with respect to the conveyance start end side portion 31F including the start end ring body 35. It is configured to move up and down. Below the sorting conveyor 31 is provided a lifting cylinder 60 as a drive mechanism connected to the frame 34r on the conveyance end side and the body frame 4 of the self-propelled machine body. 31R is adjusted up and down, and ginseng is collected while avoiding carrot damage caused by ginseng falling from the sorting conveyor 31 to the container 50.

  FIG. 8A is a rear view of the collection unit 40 at the start of carrot collection. As shown in this figure, at the start of carrot collection, the lifting cylinder 60 is driven downward to adjust the conveyance end side portion 31R of the sorting conveyor 31 downward, and from the support base 41 at the conveyance termination point of the sorting conveyor 31. Adjust the height of the lower. That is, the height from the support stand 41 at the conveyance end point of the sorting conveyor 31 is adjusted to a height that can prevent carrot damage even if the carrot from the sorting conveyor 31 falls into the container 50.

  FIG. 8B is a rear view of the collection unit 40 during the carrot collection. As shown in this figure, when the upper surface level a of the carrot group A collected in the container 50 is increased and the accommodation space of the container 50 is reduced, the lifting cylinder 60 is driven upward to convey the sorting conveyor 31. The end portion 31R is adjusted to be higher than that at the start of collection, thereby the container support portion 42 is adjusted to be higher than that at the start of recovery, and the opening 51 of the container 50 is adjusted to rise. The accommodation space of the container 50 is adjusted so as to avoid the carrot damage even if the carrot from the sorting conveyor 31 falls on the carrot group A in the container. Increase.

  That is, as the accommodation space of the container 50 decreases, the conveyance end side portion 31R of the sorting conveyor 31 is raised and adjusted, whereby the conveyance termination point of the sorting conveyor 31 and the opening 51 of the container 50 are raised and adjusted. The adjustment of the container 50 to increase the accommodation space of the container 50 while adjusting the height from the upper end level a of the carrot group A at the conveyance end position 31 to a height that can prevent carrot damage due to the fall of the carrot into the carrot group A. Repeat until full.

  The drive operation on the ascending side of the lift cylinder 60 is performed by a lift operation pedal provided on the floor plate 33. The driving operation on the lowering side of the lifting cylinder 60 is performed by a lowering operation switch provided in the sorting unit 30.

  The height of the transfer end point of the sorting conveyor 31 is adjusted by swinging up and down around the rotation axis 37a of the transfer end side portion 31R of the sorting conveyor 31 to determine the transfer start end side portion 31F of the sorting conveyor 31. This is done while maintaining the position. As a result, the relative position between the transfer start end side portion 31F of the sorting conveyor 31 and the conveyor 21 of the transfer portion 20 does not change, and the carrot is not adversely affected to the carrot supply from the transfer portion 20 to the sorting conveyor 31. Recovery without damage can be performed.

  FIG. 6 shows a sectional structure of the endless conveyor belt 39. As shown in FIG. 2 and FIG. 2, the endless conveyor belt 39 includes a pair of endless rotating chains 39 a and 39 a arranged in the width direction of the endless conveyor belt 39, and the pair of endless conveyor belts 39 arranged in the longitudinal direction of the endless conveyor belt 39. Conveyor bar 39b connected to endless rotating chains 39a, 39a. The endless conveyor belt 39 is provided with a transport locking piece 39c protruding from a part of the plurality of conveyor bars 39b to the transport side, and the transport locking piece 39c prevents the carrot from slipping. .

  As shown in FIG. 6, the sorting conveyor 31 includes a tension mechanism 64 having a pair of tension ring bodies 65 and 66 positioned between the two return guide ring bodies 38 and 38. As shown in FIG. 6, the tension mechanism 64 includes the pair of tension ring bodies 65, 66 and also supports the pair of tension ring bodies 65, 66 on both lateral outer sides of the endless conveyor belt 39 so as to be freely rotatable. And a tension spring 68 that swings and urges the support link 67 around the axis of the support shaft 67a.

  FIG. 6 shows an operating state of the tension mechanism 64 in a state where the conveyance end side portion 31R of the sorting conveyor 31 is adjusted up. FIG. 7 shows an action state of the tension mechanism 64 in a state where the conveyance end side portion 31R of the sorting conveyor 31 is adjusted downward. As shown in these drawings, the tension mechanism 64 entrains the endless conveyor belt 39 around the pair of tension rings 65, 66 by swinging and energizing the pair of tension rings 65, 66 by a tension spring 68. Thus, even if a length change occurs on the return side of the endless conveyor belt 39 due to the swing adjustment of the transport end side portion 31R of the sorting conveyor 31, the endless conveyor belt 39 is maintained in an appropriate tension state. .

  FIG. 9 is a plan view of the support structure of the support base 41. As shown in FIG. 3 and FIG. 3, the support base 41 is connected to a pair of support portions 71, 71 provided at the rear end portion of the auxiliary base 70 located on the front side of the self-propelled machine body from the support base 41. Has been. The auxiliary base 70 is pivotally supported on the body frame 4 via a pair of front and rear connecting members 72 and 72 provided on the base end side thereof and a pair of front and rear pivot shafts 73 and 73 provided on the body frame 4. ing.

  That is, the support base 41 is pivotally supported together with the auxiliary base 70 on the body frame 4 via a pivot axis P that is common to the pair of pivot shafts 73 and 73 and faces the front and rear of the self-propelled body. The base 41 and the auxiliary base 70 are integrally swung up and down around the pivot axis P with respect to the self-propelled machine body to switch between the lowered use posture and the raised storage posture.

  As shown in FIGS. 2 and 5, the self-propelled aircraft includes a lateral outer edge 4 a at a portion constituting the driving part of the aircraft frame 4 as an outermost edge on the right lateral side of the self-propelled aircraft. . The pivot shaft P is a distance smaller than the lateral width of the support base 41 and the auxiliary base 70 and the thickness of the support base 41 and the auxiliary base 70 on the inner side of the self-propelled aircraft than the outermost edge 4a. It is placed in a place that has entered at a great distance.

  FIG. 4 shows a rear view state of the support base 41 and the auxiliary base 70 in a lowered use posture. FIG. 9 shows a plan view of the support base 41 and the auxiliary base 70 in a lowered use posture. As shown in these figures, the auxiliary base 70 is moved down around the pivot axis P to the outside of the self-propelled machine body, and the inner end of the auxiliary base 70 in the lateral direction of the self-propelled machine body contacts the side surface of the machine body frame 4. When in contact with each other, the support base 41 and the auxiliary base 70 extend horizontally from the machine body frame 4 toward the laterally outer side and are in a lowered use posture. At this time, due to the arrangement of the pivot shaft core P, most of the support base 41 and the auxiliary base 70 on the extension end side of the support base 41 and the auxiliary base 70 is self-propelled from the outermost edge 4a. Projecting outward from the fuselage, a working space is formed on the lateral lateral side of the self-propelled aircraft, and by receiving by the fuselage frame 4, it is maintained in a lowered use posture against the load of the carrot.

  FIG. 5 is a rear view of the support base 41 and the auxiliary base 70 in the raised storage posture. As shown in this figure, when the auxiliary base 70 is lifted around the pivot axis P, the support base 41 and the auxiliary base 70 stand up with respect to the body frame 4 and are in the upward retracted posture. At this time, the support base 41 and the auxiliary base 70 are in a state in which the support base 41 and the auxiliary base 70 are entirely inside the self-propelled aircraft body than the outermost edge 4a due to the arrangement of the pivot shaft core P. Thus, the width of the crop harvester is made smaller than that when the support base 41 and the auxiliary base 70 are in the lowered use posture. Further, at this time, the lock mechanism 75 (see FIG. 9) provided between the auxiliary base 70 and the body frame 4 is automatically actuated to lock the support base 41 and the auxiliary base 70 in the raised storage posture.

  FIG. 10 is a perspective view of the lock mechanism 75 in an unlocked state. FIG. 11 is a perspective view of the lock mechanism 75 in a locked state. As shown in these drawings and FIG. 9, the lock mechanism 75 is swingable via a support shaft 77 on a lock shaft 76 provided at the base portion of the auxiliary base 70 and a support portion 4 b of the body frame 4. A hook 78 that is supported and a lock spring 79 that swings and urges the hook 78 to engage with the lock shaft 76 are provided.

  The lock mechanism 75 is unlocked so that the storage lock between the auxiliary base 70 and the support base 41 is released when the hook 78 is removed from the lock shaft 76 by a release lever 78 a extending from the hook 78. Become.

  As shown in FIGS. 9, 10, and 11, the self-propelled machine body includes a lock pin 80 provided in the vicinity of the lock mechanism 75 so as to be manually slidable. The lock pin 80 is engaged with a pin hole 82 of a lock arm 81 connected to the connecting member 72 to lock the auxiliary base 70 and the support base 41 in the raised storage posture.

  As shown in FIG. 5, the transfer end side portion 31 </ b> R of the sorting conveyor 31 can be lifted by the lift cylinder 60 to a lift storage position that is raised higher than the lift range for working to lift and lower the opening side of the container 50. It is constituted as follows.

  As shown in FIGS. 3, 4, and 9, a rod-shaped connecting tool having one end connected to the support base 41 via a U-shaped connection fitting 85 to a connecting portion 41 a located at the end of the support base 41. 86 is provided. The connecting tool 86 includes a hook portion 86a provided at an end portion on the opposite side to the side to which the connecting fitting 85 is connected.

  As shown in FIG. 5, the connector 86 is configured such that the hook portion 86 a is locked to a hook hole 88 provided by attaching a support arm 87 to the support rod 44 of the container support portion 42. 41 and the container support portion 42 of the sorting conveyor 31 are connected. As shown in this figure, when the transporting end side portion 31R of the sorting conveyor 31 is lifted by the elevating cylinder 60 with the connector 86 in use, the support table 41 and the auxiliary table 70 are moved to the conveying end side of the sorting conveyor 31. Ascending operation via the connecting tool 86 by the part 31R raises together with the conveyance end side part 31R.

  When the transporting end side portion 31R of the sorting conveyor 31 is lowered while the connecting device 86 is in use, the ascending storage lock by the lock pin 80 and the lock mechanism 75 of the support base 41 and the auxiliary base 70 is released. If this is the case, the support base 41 and the auxiliary base 70 are lowered together with the transport end side portion 31R while being supported by the transport end side portion 31R of the sorting conveyor 31 via the connecting tool 86.

  As a result, the transport end side portion 31R of the sorting conveyor 31 rises to the ascending storage position, and the sorting conveyor 31 enters the retracted state. The transport end side portion 31R is located on the inner side of the self-propelled machine body than the outermost edge 4a of the self-running machine body. In this state, the support base 41 and the auxiliary base 70 are in the ascending storage posture, and the support base 41 and the auxiliary base 70 as a whole are more autonomous than the outermost edge 4a of the self-propelled aircraft. The size of the horizontal direction of the self-propelled machine at the collection unit 40 of the crop harvester becomes smaller than that at the time of work. In this case, by removing the pair of front and rear hanger bodies 45, 45 from the support rod 44, it is possible to avoid the hanger body 45 from projecting to the lateral outer side of the self-propelled machine body.

  On the other hand, the conveyance end side portion 31R of the sorting conveyor 31 is lowered, the sorting conveyor 31 is in a use state, and the conveyance end side portion 31R protrudes from the outermost edge 4a of the self-propelled machine body to the outer side of the self-propelled machine body. As a result, the support base 41 and the auxiliary base 70 are in the lowered use posture, and the free end side of the support base 41 and the auxiliary base 70 is lateral to the self-propelled aircraft body than the outermost edge 4a of the self-propelled aircraft body. It protrudes outward, and the container 50 can be mounted on the support base 41 and the container support portion 42 to perform carrot collection by the container 50.

  As shown in FIG. 3, the connector 86 is engaged in a carrot collection operation by locking a portion located near the hook portion 86 a to a holder 90 provided on a side surface of the operation arm portion 41 b of the support base 41. Can be stored so as not to interfere with the operation.

The support base 41 is pivotally supported by the support portion 71 of the auxiliary base 70 so as to be swingable. A shaft mechanism is connected to the operation arm portion 41b and a support arm 92 of the auxiliary base 70 by a cylinder mechanism 93. The auxiliary platform 70 is swung up and down around X.
That is, when the electric motor 94 included in the cylinder mechanism 93 is driven in a state where the support base 41 is in the lowered use posture, the cylinder mechanism 93 is driven to the extension side by the electric motor 94 and the operation arm portion 41b is pivoted. Swing to the rear side of the self-propelled aircraft around X. As a result, the support base 41 is lowered to a chute posture that is rearwardly lowered about the axis X as shown by a two-dot chain line in FIG. 3, and the container 50 is easily lowered from the support base 41.
When the cylinder mechanism 93 is driven to the shortened side by the electric motor 94 and the operation arm 41b is operated to return to the front side of the self-propelled machine body, the support base 41 takes a normal posture in which the container mounting surface is horizontal and supports the container 50. Return.

[Another Example]
The object of the present invention can also be achieved in a crop harvesting machine having a conveyor dedicated to transporting crops to the collection unit instead of the sorting conveyor 31. Therefore, the sorting conveyor 31 and the transport conveyor are collectively referred to as the conveyor 31.

  In place of the above-described embodiment, the object of the present invention can be achieved even when a configuration is adopted in which the support base 41 is supported on the rear side of the self-propelled aircraft so as to be swingable up and down in the lowered use posture and the raised storage posture. it can.

  The object of the present invention can also be achieved in crop harvesting having a configuration in which various crops such as radish, onions, and potatoes are harvested instead of the crop harvesting machine of the above-described embodiment. Therefore, these carrots, radishes, onions, and moss are collectively called crops.

Whole side view of crop harvester Top view of the entire crop harvester Side view of collection unit Rear view of sorting section and collection section Rear view of support stand and auxiliary stand in raised storage position Rear view showing the lifted state of the sorting conveyor's transfer end and the working state of the tension mechanism Rear view showing the descending state of the transfer conveyor's end of conveyance and the working state of the tension mechanism (A) is a rear view at the start of the collection of carrots in the collection unit, (b) is a rear view of the collection unit during the collection of carrots. Plan view of support structure Perspective view of the lock mechanism in the unlocked state Perspective view of the locking mechanism in the locked state

Explanation of symbols

4a Outermost edge 10 of self-propelled machine body Harvest unit 31 Conveyor 40 Collection unit 41 Support base 42 Container support unit 50 Container 86 Connection tool P Pivot axis

Claims (3)

A crop harvester having a self-propelled aircraft with a harvesting section for harvesting a crop from a field and a collection section having a support for a container for collecting the crop from the harvesting section,
Self-propelled so that the support base can enter the self-propelled machine body in the ascending and retracting posture while supporting the pivot axis pivotably supporting the descending use posture and the rising and retracting posture projecting out of the self-propelled aircraft. A crop harvester located inside the outermost edge of the aircraft. A conveyor that conveys the crop from the harvesting unit to the recovery unit is provided to be swingable up and down freely,
The crop harvesting machine according to claim 1, further comprising a detachable connector for connecting the conveyor and the support table so that the support table is lifted by the conveyor.   The crop harvesting machine according to claim 2, wherein a container support part for supporting the container by suspending the container is provided on the conveyor, and the connector is connected to the container support part of the conveyor.

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