JP2006129737A - Root crop harvesting machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a root crop harvesting machine capable of relatively easily moving a receiving bag 51 filled with root crops in a transversely outside direction of a machine body, capable of lowering the receiving bag 51 onto a ground surface of a cultivated field in such a manner as to prevent damage to the root crop w inside the bag, and capable of preventing transverse stability of the machine body from being excessively deteriorated. <P>SOLUTION: This root crop harvesting machine is structured so that a digging-up and cutting-off means 12 for digging up the root crop w and cutting off a leaf part thereof is arranged on one of right and left sides of the traveling machine body, a forward transferring device 50 for forward transferring the root crop w of which the leaf part has been cut off by the digging-up and cutting-off means 12 is arranged on the other side of the traveling machine body, and a mounting part 52 of the receiving bag 51 and a crane 54 are positioned in front of the forward transferring device 50, wherein an approximately horizontal extension mounting part 53 is downward swingingly mounted on a position transversely outside the mounting part 52 through a forward and backward facing shaft 65a, and further an association means 75 for operating the extension mounting part 53 in association with a lifting arm 69 of the crane 54 is installed. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a root crop harvester that harvests carrots and the like.

The excavation means for excavating the root vegetables on the left and right sides of the traveling machine body and excising the leaf stem part, and the root vegetables after the leaf stem part is excised by the excavation means on the other side of the traveling machine body are moved forward. There is a root crop harvesting machine having a structure in which a forward conveying device for conveying is arranged, and a placement portion for a storage bag and a crane are arranged in the front portion of the forward conveying device (see Patent Document 1).
In this type of root vegetable harvesting machine, when the storage bag is filled with root vegetables, the operator lifts the storage bag with a crane, moves it to the lateral side of the machine manually, and hangs it on the ground such as a farm field. I am doing so.

JP 09-271230 A JP 2004-89063 A

  As described above, when the storage bag on the fuselage is lowered to the ground, it is not easy to move the storage bag lifted by the crane to the lateral side of the fuselage. In addition to the possibility of damaging the root vegetables, the lateral stability of the aircraft may be impaired when the storage bag is suspended and moved laterally by the crane.

  The present invention was devised in view of such a situation, that is, a storage bag filled with root vegetables can be moved relatively easily to the outside of the aircraft, and the storage bag can be lowered smoothly. An object of the present invention is to provide a root crop harvesting machine that can prevent the root vegetables in the storage bag from being damaged and can prevent the lateral stability of the machine body from being lowered when the storage bag is suspended.

  In order to achieve the above object, a root vegetable harvesting machine according to the present invention comprises, as described in claim 1, digging excision means for digging up root vegetables on the left and right sides of the traveling machine body and excising the leaves, and the traveling machine body. On the other side, a forward conveying device for conveying the root vegetables after the leaf portions have been excised by the excavation excision means is disposed forward, and the storage bag placing portion and the crane are disposed at the front of the forward conveying device. In the root crop harvesting machine having the above-described arrangement, a substantially horizontal extended mounting portion is installed in a laterally outward position of the mounting portion so as to be swingable downward via a longitudinal axis, and the extended mounting portion and the crane It is characterized in that interlocking means for operating the suspension arm in association with each other is provided.

The above-described invention is preferably embodied as follows.
That is, as described in claim 2, the lock member interlocked with the suspension arm is provided, and the lock member moves the extension mounting portion until the suspension arm is swung to a specific position around the vertical axis. Supporting in a substantially horizontal shape, on the other hand, when the suspension arm is rotated around the vertical axis beyond the specific position, the lock member is detached from the extension mounting portion, in connection with the separation, The extension mounting portion is swung downward about a front-rear axis so that the outer edge of the extension mounting portion is grounded.

  According to a third aspect of the present invention, the locking member is rotated about the vertical axis disposed in the vicinity of the extended mounting portion, and the interlocking member extends in the specific radial direction of the vertical axis. An arm portion and an engaging portion extending from the tip of the interlocking arm portion in a direction substantially perpendicular to the radial direction in the horizontal direction and extending toward the extended placement portion are provided.

  Furthermore, as described in claim 4, a posture returning means for returning the extended mounting portion swung downward about the front-rear axis to a substantially horizontal shape is provided.

  Since the present invention is configured as described above, the following effects can be obtained. That is, according to the first aspect of the invention, the extended mounting portion can be swung downward about the front-rear axis in connection with the horizontal swing of the crane suspension arm beyond the specific angle to the lateral side of the machine body. It can be made to a state.

  Therefore, when the storage bag filled with root vegetables is suspended on the ground on the placement part, it can be handled as follows, that is, the suspension arm is laterally outward of the placement part at a specific angle. Under the above-mentioned horizontal swivel state, by applying a lifting force to the storage bag from the upper end of the suspension arm via the wire, the storage bag is pulled laterally outward of the placement unit, and the load is reduced. In relation to this, the extended mounting part is applied with a rotational force due to the load of the storage bag and is swung downward about the front-rear axis, and the extended mounting is caused by the swinging. When the outer edge of the mounting portion is grounded and the extended mounting portion is held in an inclined state, and when a lifting force is further applied to the storage bag via the wire under this state, the center of gravity of the storage bag Is moved from the placement portion onto the extension placement portion, and thereafter the wire suspension force and Due to the action of gravity acting on the storage bag, the storage bag slides on the ground with a small amount of impact using the extended mounting portion as a slide, and after that, the storage bag is lifted with the wire as necessary and the storage bag is further extended. It is possible to move the mounting part laterally outward to leave the extended mounting part laterally outward, and to lower the wire under the state to position the storage bag on the ground. .

As a result, the storage bag on the mounting portion can be lowered to the ground with less impact and less labor so as not to cause damage to the root vegetables stored in the storage portion. Since the part comes into contact with the ground and opposes the lateral inclination of the aircraft, a phenomenon in which the lateral stability of the aircraft is excessively reduced during the lowering process of the storage bag is avoided.
Furthermore, as long as the suspension arm is located at the harvesting position and the pulling force is applied to the storage bag above the mounting portion, the storage bag is stably supported on the wide surface of the mounting portion and the extended mounting portion. It will be a thing.

  According to the second aspect of the present invention, since the suspension arm and the extension mounting portion are interlocked via the lock member, the same effect as that of the first aspect of the invention can be obtained with a simple structure. In addition, since the suspension arm is fixed at the harvesting position around the vertical axis, the substantially horizontal posture of the extended placement portion is reliably maintained.

  According to the third aspect of the present invention, when the lock member rotates about the vertical axis in conjunction with the turning displacement of the suspension arm, the operator who is turning the suspension arm from the vicinity thereof The engaging portion prevents entry between the extended mounting portion and the situation where an operator is sandwiched between the arm portion and the extended mounting portion is avoided.

  According to the fourth aspect of the present invention, the extended mounting portion is returned to the substantially horizontal posture without requiring human force by the posture returning means in association with the storage bag being separated laterally outward from the extended mounting portion. This contributes to reducing the manual work after the storage bag on the placement unit is lowered to the ground.

  Embodiments of the present invention will be described below. 1 is an overall side view of a root vegetable harvester according to the present invention, FIG. 2 is a plan view of the root vegetable harvester, FIG. 3 is a right side view of the root vegetable harvester, and FIG. 4 is a rear view of the root vegetable harvester. 5 is a rear view showing the sorting conveyor of the root vegetable harvesting machine, FIG. 6 is a view of the transport mechanism of the sorting conveyor as viewed from the rear of the machine, and FIG. 7 is a view of one feeding support plate of the sorting conveyor from the right of the machine. FIG. 8 is a perspective view showing an example of the transport mechanism of the sorting conveyor, FIG. 9 is a plan view showing a storage bag lowered state of the root vegetable storage unit, and FIG. 10 shows a storage bag lowered state of the root vegetable storage unit. It is a rear view.

  The overall configuration of a root vegetable harvesting machine mainly intended for carrot harvesting will be described with reference to FIGS. First, a crawler type traveling device 2 is disposed below a horizontally disposed main frame 1, and a driving operation unit 3 is disposed on the right (right side in the traveling direction) front portion of the main frame 1. Yes. The operation operation unit 3 is provided with a front column 4 standing at the front, and an operation lever 6 that can be operated and lifted up and down at the same time is installed upright, and an accelerator lever is installed on the side. It is installed. A side column 7 is erected on the side of the front column 4, and operation levers such as a work lever and an auxiliary transmission lever are provided on the side column 7 so as to protrude. A driver's seat 8 is disposed behind the front column 4, and an engine compartment is disposed behind and below the front column 4. An engine 9 is built in the engine compartment, and the engine 9 is covered with an engine cover 10. . A container base 11 is placed on the engine cover 10.

  A root crop w is excavated on the left side of the traveling machine body, conveyed to the rear, and an excision excision portion 12 for excising the leaf portion, and a sorting portion 13 for laterally conveying the root portion at the rear portion. The excavation excavation part 12 has a pulling device 14 from the front left side of the main frame 1, a gauge wheel 16 for setting the height of the pulling conveyor 15, a pulling device 17 for lifting the leaf part of the root vegetable w, The digging device 5 for digging up the root vegetables w, the pulling conveyor 15 for holding and conveying both sides of the leaf portion of the root vegetables w dug up from the rear of the pulling device 14, the cutter 18 behind the drawing conveyor 15, and the lower part below A conveyor 19 and a lateral feed roller 20 are arranged, and the sorting unit 13 is arranged on the side of the lateral feed roller 20 with a sorting conveyor 21 that conveys the root part slightly upward to the right rear part of the traveling machine body. It has been made.

  The above-described configuration will be described in more detail. First, the digging device 5 has rotating fulcrum shafts 22 and 23 provided horizontally at the upper and lower portions of the front end of the main frame 1. 23, the rear portions of the upper link 24 and the lower link 25 are pivotally supported, and the front portions of the upper link 24 and the lower link 25 are pivotally connected to the bracket 26. The upper link 24 and the lower link 25 form a parallel link, and the upper end of the subsoiler 27 is fixed to the bracket 26.

  The rear end of the lower link 25 is connected to an elevating cylinder 29 made of a hydraulic cylinder via an arm 28 and can be moved up and down by operating the elevating cylinder 29. An upper portion of the subsoiler 27 is supported on the front portion of the upper link 24 via an eccentric cam. The subsoiler 27 can be driven to vibrate by rotating the eccentric cam, and is vibrated in the soil from below the root vegetables w. , Root vegetables w are raised, so that they can be pulled out easily.

  And the rear part of the said drawing conveyor 15 is supported by the conveyor support frame 30, and this conveyor support frame 30 is supported by the support body 31 which protruded upwards from the main frame 1. As shown in FIG. The support 31 is an integral component composed of a left / right rotation shaft 31a and a vertical rotation cylinder 31b. The drawing conveyor 15 is rotated up and down around the vertically rotating cylinder 31b by using the lifting and lowering of the digging device 5, so that the drawing height can be changed or lifted.

  The pulling conveyor 15 has transport frames 32L and 32R arranged in parallel in the front-rear direction and inclined in front and rear and rear height, and the rear lower surface of the transport frames 32L and 32R is supported by the conveyor support frame 30, and the transport frame 32L・ Pulleys 33, 33 are arranged at both front and rear ends of 32R, guide pulleys 33a, 33a,... Are arranged in the middle of the pulleys, and conveyor belts 34a, 34a are wound around these pulleys. On the lower surface, an auxiliary conveyance conveyor 35 around which a pair of left and right conveyance belts are wound is provided to hold the root side of the leaf portion. Moreover, the star wheel 36 is arrange | positioned at the front-end upper part of the drawing conveyor 15, and the leaf part of root vegetables w is raked in.

  And the arm protrudes ahead from the front-end part of the drawing conveyor 15, and the raising device 14 is fixed so that vertical height adjustment is possible. This pull-up device 14 winds the belts protruding the tines 37a, 37a,. Then, a lifting device 17 is fixed by projecting a connecting body forward from the pulling device 14. Like the pulling device 14, the pulling device 17 arranges belts protruding tines 38a, 38a... In the vertical direction on the front and rear surfaces so that the leaves are pulled up from both the left and right sides of the harvesting strip. .

  A gauge ring 16 is disposed on the front side of the pulling device 14. The gauge ring 16 is rotatably supported at the tip of a support arm 39 protruding to the side of the pulling device 14, and the height of the gauge ring 16 can be adjusted to the support arm 39 to raise and lower. The height of the pretreatment device comprising the device 14 and the pulling device 17 and the drawing conveyor 15 can be adjusted, and the nipping position of the leaf portion of the root vegetable w can be adjusted.

  A leaf discharge conveyor 40 is extended rearward in the front-rear direction horizontally at the rear of the drawing conveyor 15 and the auxiliary transfer conveyor 35. In the middle of the auxiliary transport conveyor 35, a horizontal conveyor 41 is extended rearward in the front-rear direction, and a guide 42 for guiding root vegetables w is disposed below the horizontal conveyor 41. A cutter 18 is disposed between the guide 42 and the horizontal conveyor 41. The leaf portion of the root vegetable w transported by the auxiliary transport conveyor 35 is taken over by the horizontal conveyor 41 and is transported backward while the root upper end of the root vegetable w is positioned, and the leaf portion is cut by the cutter 18 at a predetermined position. The root portion is dropped onto the lower conveyor 19 disposed below the leaf portion, and the leaf portion is conveyed to the leaf portion discharge conveyor 40 and dropped onto the field scene from behind.

  The lower conveyor 19 is composed of a wide belt conveyor, and is disposed in the horizontal direction from the lower rear of the auxiliary conveyor 35 to the rear, and the transverse feed roller 20 is disposed obliquely on the middle portion of the lower conveyor 19. ing. The root vegetables w are dropped onto the sorting conveyor 21 on the side by the rotation of the lateral feed roller 20 and the conveyance drive of the lower conveyor 19.

  The sorting conveyor 21 is arranged in the left-right direction at the rear part of the machine and has a wide conveyor surface so that the soil adhering to the root vegetables w is dropped while being sent to the right side of the traveling machine body. As shown in FIG. 5, the sorting conveyor 21 is supported by a support pillar 1 a erected on the right end from the rear right end of the main frame 1. The left end of the sorting conveyor 21 is fixed to the right end of the frame 44 that supports and fixes the rear end of the lower conveyor 19. In this embodiment, the left end portion of the sorting conveyor 21 is fixed to a lower end portion 44a that bends the right end portion of the frame 44 downward. That is, the left end portion of the conveying surface of the sorting conveyor 21 is disposed at a position one step lower than the conveying surface of the lower conveyor 19. One end of a transfer plate 45 made of resin or rubber is fixed on the right side behind the lower conveyor 19, and the other end is suspended from the upper surface of the left end portion of the sorting conveyor 21.

  The sorting conveyor 21 can be a belt conveyor, but can also be as follows. That is, as shown in FIGS. 5 to 7, each of the upright feed support plates 46 is formed in a horizontal shape in the front-rear direction, and a plurality of rows are formed in the right and left direction slightly upward with a gap a1 of about 10 mm to 20 mm, for example. And a drive mechanism 47 is provided for guiding each feed support plate 46 only in the vertical direction, while moving each feed support plate 46 up and down at a specific timing. When the plate 46 is moved up and down, a vertical wave traveling from the left side of the machine body to the right side of the machine body is generated on the conveyor surface formed by the upper edges of the feed support plates 46, and Each feed support plate 46 has an upper edge portion formed by a front surface 46a, a rear surface 46b, and a top surface 46c, and the top surface 46c forms a relatively steeply right-declining surface.

  At this time, the drive mechanism 47 may move the feed support plate 46 up and down by the rotation of the cam 48 as shown in FIG. 8, or may move the feed support plate 46 up and down by the crank mechanism, or The support plate 46 may be moved up and down by a fluid pressure cylinder.

  According to the sorting conveyor 21, the root portion of the root vegetable w that has reached the left end of the conveyor surface is gradually moved to the right side by a wave generated on the conveyor surface, and during this feeding movement, soil or the like adhering to the root portion is Due to the vertical displacement of the feed support plate 46, an impact is applied from the upper edge of the feed support plate 46 and it is peeled off and falls onto the ground from the gap a2 between the feed support plates 46.

  The root vegetables w whose conveyance direction has been changed to the horizontal direction by the transverse feed roller 20 falls along the delivery plate 45 to the starting end portion of the lower sorting conveyor 21, and the delivery from the lower conveyor 19 to the sorting conveyor 21. Is smoothly performed, it does not stay at the conveyance start end of the lower conveyor 19 and is accurately conveyed from the left side of the machine body to the right side of the machine body. In the present embodiment, the left end portion of the sorting conveyor 21 is fixed to the frame 44, but it can also be configured to be fixed to a support column that stands upright from the main frame 1.

  The root vegetables w thus transported to the right side of the machine body by the sorting conveyor 21 are then transported to the root vegetable storage unit 49. Next, the root vegetable storage 49 will be described with reference to FIGS. The root vegetable storage section 49 is transported by a forward conveying conveyor 50 as a forward conveying apparatus that inherits and sorts a root portion that has been subjected to removal of defective products by an operator at 21 sorting conveyors, and the forward conveying conveyor 50. A storage bag 51 for storing the root vegetables w, a bag receiving base 52 as a mounting portion for supporting the bottom surface of the storage bag 51, and an extended mounting portion 53 attached to the lateral outer side of the bag receiving base 52 in an extended manner The crane 54 is configured to suspend and move the storage bag 51.

  The forward conveying conveyor 50 is a wide belt conveyor that extends from the right end of the sorting conveyor 21 to the side of the engine cover 10. A rear drive roller 55 is provided laterally at the rear end of the conveyor 50, a front roller 56 is provided laterally at the front of the forward conveyor 50, and a conveyor belt is provided between the rear drive roller 55 and the front roller 56. 57 is wound. On the outer peripheral surface of the conveying belt 57, conveying plates 57a, which are plate-like protrusions are projected at regular intervals. In addition, guide frames 58 and 58 are fixed to both left and right ends of the forward conveying conveyor 50 to prevent the root vegetables w from falling to the left and right. Mounting hooks 59 and 59 project downward from the lower front portions of the guide frames 58 and 58 so that the storage bag 51 can be locked using the mounting hooks 59 and 59.

  Further, power is transmitted to the rear drive roller 55 of the conveyor 50 from the sorting conveyor 21 and the like via a drive mechanism (not shown). The rear drive roller 55 is pivotally supported on the main frame 1. Further, a support stay 60 is projected downward from the lower rear portion of the main frame 1, a pivot pin 61 is projected outward at the lower end portion, and the rear end of the elevating cylinder 62 is pivotally supported on the pivot pin 61. On the other hand, a fixed stay 63 protrudes downward in the front-rear direction middle portion of the guide frame 58 inside the conveyor 50, and the distal end of the telescopic rod of the elevating cylinder 62 is fixed to the fixed pin 64 protruding sideways from the fixed stay 63. Is pivotally supported. Accordingly, when the elevating cylinder 62 is expanded and contracted, the conveyor 50 can be rotated up and down around the drive shaft of the rear drive roller 55.

  A bag receiving portion 52 is disposed below the front portion of the conveyor 50. The bag receiving portion 52 is a plate that extends from substantially below the mounting hooks 59 and 59 disposed on the left and right guide frames 58 and 58 to the front of the driver seat 8 in a side view, and has a large bottom area. The bag 51 can be placed.

  Further, as shown in FIGS. 9 and 10, the bag receiving portion 52 is provided between the bag receiving portion 52 and the bag receiving portion 52 so as to be swingable downward around the shaft 65a via a front-rear-facing shaft 65a. An extended placement portion 53 that is held substantially horizontally by the elasticity of the elastic member 65b is provided. When gravity of a specific size or more is applied to the mounting surface of the extension mounting portion 53, the extension mounting portion 53 is given a rotational force of a specific size or more due to the gravity and resists the elasticity of the elastic member 65b. While being swung downward, the outer edge of the outer side comes into contact with the ground on which the airframe travels, and the horizontal inclination in a state where the right side of the airframe descends and the left side of the airframe rises is prevented.

  A crane stand 52a is formed in front of the bag receiving portion 52, and a crane 54 is disposed on the upper surface of the crane stand 52a. The crane 54 has a columnar support cylinder 66 erected on the crane stand 52 a, and a vertical axis 68 of the crane base 67 is rotatably inserted into the support cylinder 66, and the crane base 67 is moved horizontally through the vertical axis 68. It is installed so that it can rotate freely. As shown in FIG. 3, a horizontal shaft 69a is provided at the upper end portion of the crane base 67, and a suspension arm 69 is pivotally supported about the horizontal shaft 69a so as to be swingable in the vertical direction. Further, the lower end of the telescopic cylinder 70 is pivotally supported in the middle of the length of the crane base 67, and the tip of the telescopic rod of the telescopic cylinder 70 is pivotally supported in the middle of the lower surface of the suspension arm 69 to drive the telescopic cylinder 70. By doing so, the suspension arm 69 is swung vertically. A winch 71 that pivotally supports a rotating drum is fixed inside the upper surface of the base portion of the suspension arm 69, and one end of a wire 72 is wound around the winch 71. It is supported by a roller 73 pivotally supported on the upper part, and a hook part 74 is fixed to the other end of the wire 72.

  Then, the mouth 51a of the storage bag 51 is locked to the hook portion 74 fixed to the wire 72 of the crane 54 and the locking hooks 59 and 59 disposed below the forward feed conveyor 50. Thus, the mouth portion 51a of the storage bag 51 made of a cloth material or the like is supported at three points and opened in a triangular shape in plan view. Further, a wire divided in two left and right directions is fastened to the hook portion 74 suspended from the crane 54, and the front portion left and right sides of the mouth portion 51a are locked to support the mouth portion 51a of the storage bag 51 at four points. It can also be opened in a rectangular shape.

  And the interlocking means 75 for operating the extended mounting part 53 and the suspension arm 69 in relation is provided. The interlocking means 75 has a lock member 76 fixed to the lower surface side of the crane stand 52 a at the lower end of the vertical axis 68 interlocked with the suspension arm 69. The lock member 76 extends from the longitudinal axis 68 in the specific radial direction of the interlocking arm portion 76a, and extends from the tip of the interlocking arm portion 76a to the side of the extended mounting portion in a direction substantially horizontal to the specific radial direction. And an engaging portion 76b. Until the suspension arm 69 is rotated to a specific position around the vertical axis 68, the engaging portion 76b of the lock member 76 supports the lower surface of the extended mounting portion 53 and holds the extended mounting portion 53 in a substantially horizontal shape. On the other hand, when the suspension arm 69 is rotated about the vertical axis 68 beyond the specific position, the engaging portion 76b is detached from the extended mounting portion 53 as shown in FIG. As the gravity of a specific size or more acts on the mounting surface of the mounting portion 53, a rotational force of a specific size or more acts on the extended mounting portion 53, and the extended mounting portion 53 moves back and forth as shown in FIG. The outer edge of the extended placement portion 53 is grounded by swinging downward around the orientation shaft 65a. At this time, it is preferable that the lock member 76 supports the extended placement portion 53 via a frictional resistance reducing means such as a roller (not shown).

  In such a configuration, the root vegetables w are inherited from the right end of the sorting conveyor 21 to the rear part of the forward conveying conveyor 50, and the root vegetables w are put into the storage bag 51 using the forward conveying conveyor 50. When starting to put root vegetables w into the storage bag 51, the conveyor 50 is positioned in the lowered position (horizontal transport state) as indicated by the phantom line d in FIG. The mouth part 51a is opened just above the bag receiving part 52 so as to keep the distance at which the root vegetables w fall short. Then, as the filling amount of root vegetables w increases, the elevating cylinder 62 is extended so that the conveyor 50 is in an obliquely conveyed state before and after, as shown by the solid line in FIG. 3, and the falling distance of the root vegetables w is shortened. It keeps the root vegetables w from being damaged. And the folding of the rear part of the storage bag 51 is extended, and the height of the storage bag 51 is extended to a position above the conveying surface of the sorting conveyor 21 to increase the storable height of the storage bag 51 and increase the storage amount. I try to keep it. Then, when the storage bag 51 is fully loaded with root vegetables w, as shown in FIG. 9, the mouth 51a is closed and lifted by the suspension arm 69 and rotated toward the position of the two-dot chain line 69b in FIG. .

  As a result, the gravity of the storage bag 51 gradually and strongly acts on the extended mounting portion 53, and when the amount of horizontal rotation of the suspension arm 69 exceeds a specific size, the engaging portion 76b of the lock member 76 is extended and mounted. Detach from the portion 53 and release the support of the extended placement portion 53. Simultaneously with the release, the extension mounting portion 53 is swung downward about the front-rear shaft 65a by the rotational force based on the gravity of the storage bag 51 as shown in FIG. At this time, the storage bag 51 slides down on the ground smoothly and without a large impact by the action of both the lifting force of the crane 54 and the drop guide action of the extension mounting portion 53. In addition, the extended mounting portion 53 in the grounded state prevents the aircraft from descending to the right and prevents the lateral stability of the aircraft from being excessively impaired. The storage bag 51 lowered to the ground is further hung and moved laterally outward from the extension mounting portion 53 by the crane 54 as necessary. When the storage bag 51 is separated from the extension mounting portion 53 in this way, the extended mounting is performed. The placement portion 53 is not subjected to great gravity and is returned to the horizontal state again by the elasticity of the elastic member 65b.

  Thereafter, the hook portion 74 of the crane 54 is detached from the storage bag 51, the crane base 67 is horizontally rotated to return to the original position, and the mouth portion of the empty storage bag 51 supported by the bag receiving portion 52 is used. 51a is again suspended and supported, and the horizontal rotation displacement of the vertical axis 68 is locked by a locking member 77 attached to the support tube 66 so as to maintain this state. The original position is restored in conjunction with the crane base 67 and the suspension arm 69, and the position is fixed by the locking member 77 while the extended placement portion 53 is supported horizontally. At this time, the engaging portion 76 b of the lock member 76 prevents the operator from inadvertently entering between the interlocking arm portion 76 a and the extended placement portion 53.

1 is an overall side view of a root vegetable harvester according to the present invention. It is a top view of the root crop harvesting machine. It is a right view of the root vegetable harvesting machine. It is a rear view of the root vegetable harvesting machine. It is a rear view which shows the selection conveyor of the said root vegetable harvesting machine. It is the figure which looked at the conveyance mechanism of the said selection conveyor from the body rear. It is the figure which looked at the one feed support plate of the said selection conveyor from the body right side. It is a perspective view which shows an example of the conveyance mechanism of the said selection conveyor. It is a top view which shows the storage bag fall state of the said root vegetables storage part. It is a rear view which shows the storage bag fall state of the said root vegetables storage part.

Explanation of symbols

12 excavation means 50 forward conveying device 51 storage bag 52 bag receiving portion (mounting portion)
53 Extension mounting part 54 Crane 65a Front-rear axis 65b Posture return means (elastic member)
68 Vertical axis 69 Suspension arm 75 Interlocking means 76 Lock member 76a Interlocking arm part 76b Engaging part w Root vegetables

Claims (4)

  The excavation means for excavating the root vegetables on the left and right sides of the traveling machine body and excising the leaf part is transported forward to the other side of the traveling machine body, and the root vegetable after the leaf part is removed by the excavation means. In a root vegetable harvesting machine in which a forward conveying device is arranged and a storage bag placement unit and a crane are arranged in the front part of the forward conveyance device, a substantially horizontal extended placement unit at a laterally outward position of the previous placement unit Root vegetable harvesting machine, characterized in that it is installed so as to be swingable downward through a longitudinal axis, and provided with interlocking means for linking the extension mounting part and the suspension arm of the crane.   The lock member is linked to the suspension arm, and the lock member supports the extended mounting portion substantially horizontally until the suspension arm is swung to a specific position around the vertical axis. When the arm is rotated about the vertical axis beyond the specific position, the lock member is detached from the extended placement part, and in connection with the removal, the extension placement part is rotated about the longitudinal axis. The root vegetable harvesting machine according to claim 1, wherein the root vegetable harvesting machine is configured to swing downward and to ground the outer edge of the extended placement portion.   The locking member is configured to be rotated about the vertical axis disposed in the vicinity of the extension mounting portion, and an interlocking arm portion extending in a specific radial direction of the vertical axis, and a tip of the interlocking arm portion The root crop harvesting machine according to claim 2, further comprising an engaging portion extending in a direction substantially horizontal and perpendicular to the specific radial direction and extending toward the extended placement portion.   The root vegetable harvesting machine according to claim 1, 2, or 3, further comprising posture returning means for returning the extended mounting portion swung downward about the longitudinal axis to a substantially horizontal shape.

Images