JP6228075B2 - Harvester and wearable harvester - Google Patents

Description

  The present invention relates to a harvester and a wearable harvester.

  As a harvesting machine that transports crops harvested in a harvesting unit and accommodates the crops in a storage unit such as a container, there is a conventional technique such as Patent Document 1.

JP2013-94115A

  In patent document 1, the structure which a driving | running | working part pulls the vehicle carrying a harvesting part and an accommodating part is employ | adopted. In this case, since the vehicle is pulled backward from the traveling unit during steering in the traveling unit, the turning performance of the entire harvesting machine is degraded.

  An object of the present invention is to provide a harvester and a wearable harvesting apparatus that have relatively high turning performance during steering.

The harvesting machine of the present invention includes a traveling device having a grounding unit that is grounded to a farm field and supports the machine body so as to be driven to rotate in a lateral direction of traveling, a harvesting unit that harvests crops grown on the field, and the harvesting unit And a first transport unit that is a transport unit that transports the crop along a predetermined transport path from the harvesting unit to the storage unit. A harvesting device that is separably attached to a rear portion of the traveling device in a separated state separated from the ground at the rear of the grounding portion of the traveling device, and the harvesting unit, A crop separating unit that separates a harvested part of the crop from the field or from the lower part of the crop, a second transport unit that transports the crop separated by the crop separating unit to the first transport unit, and transported by the second transport unit Said crop being in A fruit separating unit that separates the fruit from the harvested portion, and the fruit separating unit includes two rods extending along the conveying direction of the second conveying unit, and the two rods therebetween The fruit is squeezed out from the harvested part of the crop by rotating the cropped part in a state sandwiched between the first harvesting part and the fruit separation part to separate the first transporting part from the harvested part of the crop. It has a conveyance surface that receives the dropped fruit, and conveys the fruit from the fruit separation unit to the accommodation unit by moving the conveyance surface obliquely in plan view with respect to the direction in which the two rods extend. In the state where the harvesting device is attached to the traveling device in the separated state, the traveling device can harvest the crop while traveling by rotating the grounding portion. In another aspect, the harvesting machine of the present invention harvests crops grown on a field and a traveling device having a grounding unit that is grounded to the field and supports the body while being rotated and driven to be steerable in the lateral direction of traveling. And a first transport unit that is a transport unit that transports the crop along a predetermined transport path from the harvest unit to the storage unit. A harvesting device, wherein the harvesting unit, the storage unit, and the transport unit are separably attached to a rear portion of the traveling device in a separated state separated from the ground behind the grounding unit of the traveling device. And the harvesting unit separates a crop harvested part from the field or from the lower part of the crop, and a second transporting unit that transports the crop separated by the crop separating unit to the first transporting unit. Comprising The conveying roller is wound around a first endless belt wound around a driving roller driven by a driving motor and a driven roller, and the driving roller is in a state where a crop is sandwiched between the first endless belt. A second endless belt that travels following the first endless belt when driven, and a pressing roller that contacts a surface of the first endless belt opposite to the surface on the second endless belt side; An elastic member that directly or indirectly applies an elastic force that presses the first endless belt to the second endless belt on the pressing roller; and the pressing roller has a predetermined traveling direction of the first endless belt. A restricting means for restricting movement of the pressing roller in a state in which the pressing roller is in contact with the first endless belt, the first endless belt, The crop is transported toward the first transport unit by running the first endless belt with respect to the second endless belt with the crop sandwiched between the two endless belts, and the harvesting device A crop can be harvested while the traveling device is running by rotating the grounding portion while being mounted on the traveling device in the separated state.

The wearable harvesting device of the present invention is a harvesting device that is separably attached to the rear portion of the traveling device that has a grounding portion that is grounded to a farm field and supports the machine body so as to be able to be steered and rotated in the lateral direction of traveling. A harvesting unit for harvesting a crop grown on the field, a housing unit for housing the crop harvested by the harvesting unit, and transporting the crop along a predetermined transport path from the harvesting unit to the housing unit. A first transport unit that is a transport unit , wherein the harvesting unit separates a crop harvested part from the field or from the bottom of the crop, and the crop separated by the crop separation unit is the first transport unit . A second transport unit that transports to one transport unit; and a fruit separation unit that separates fruits from the harvested portion of the crop that is being transported by the second transport unit, wherein the fruit separation unit is the first transport unit 2 extending along the transport direction of the transport section The fruit is squeezed off from the harvested part of the crop by rotating the two rods with the harvested part of the crop sandwiched therebetween, and the first transport unit is configured to separate the fruit. The fruit separation is achieved by moving the conveyance surface obliquely in plan view with respect to the direction in which the two rods extend, having a conveyance surface that receives the fruit that has fallen separated from the harvested portion of the crop by the section The fruit is transported from the storage unit to the storage unit, and the harvesting unit, the storage unit, and the transport unit are separated from the ground at the rear of the grounding unit of the travel device and are separated from the ground. Installed. In another aspect, the wearable harvesting device of the present invention is separably attached to the rear portion of the traveling device having a grounding portion that is grounded to the field and supports the machine body so as to be driven to rotate in the lateral direction of traveling. A harvesting device for harvesting crops grown in a field; a storage unit for storing crops harvested by the harvesting unit; and a predetermined transport path from the harvesting unit to the storage unit A first transport unit that is a transport unit that transports the crop, wherein the harvesting unit separates the harvested portion of the crop from the field or from the bottom of the crop, and the crop separation unit separates A second transport unit that transports the crops to the first transport unit, wherein the second transport unit is wound around a first endless belt wound around a drive roller driven by a drive motor, and a driven roller Wrapped and said first A second endless belt that travels following the first endless belt when the drive roller is driven with a crop sandwiched between the belt and the second endless belt in the first endless belt; A pressing roller that is in contact with a surface opposite to the surface on the side, and an elastic member that directly or indirectly acts on the pressing roller with an elastic force that presses the first endless belt against the second endless belt. Regulating means for regulating movement of the pressing roller downstream from a predetermined position with respect to the traveling direction of the first endless belt in a state in which the pressing roller is in contact with the first endless belt, The first transport unit is configured to run the first endless belt with respect to the second endless belt in a state where a crop is sandwiched between the first endless belt and the second endless belt. Towards it conveys the crop, the harvesting unit, the receiving portion and the transport unit is mounted on a rear portion of the traveling device in separated state both spaced from the ground at the rear than the ground portion of the traveling device.

  Convenience is high when the harvesting device having the harvesting unit, the storage unit, and the transport unit can be separated from the traveling device. However, when the harvesting device is mounted on a vehicle and pulled by the traveling device as in Patent Document 1, the wheel of the vehicle towed behind the traveling device is grounded. For this reason, when a harvester turns by steering, a back grounding part will draw a big locus. That is, the turning performance is not good and the turning performance is low. On the other hand, according to the harvesting machine of the present invention, the harvesting device is attached to the rear part of the traveling device in a state where the harvesting unit, the accommodating unit, and the conveying unit are all separated from the ground behind the grounding unit of the traveling device. Accordingly, the ground contact portion does not exist behind the ground contact portion of the traveling device, and the ground contact portion that draws a locus during turning is limited to the traveling device side. Therefore, a harvesting machine with high turning performance, small turning, and easy steering is realized.

It is a perspective view of the harvester which concerns on one Embodiment of this invention. FIG. 4 is a partial cross-sectional view of the harvesting device corresponding to the cross-sectional view taken along the line II-II of FIG. It is a top view of a harvesting side drive source and a container. It is a side view of the front part of a harvesting part. It is the front view of a pulley, and the longitudinal cross-sectional view of a conveyance belt and a clamping part. It is a side view of the harvesting device near a fruit separation part. It is a top view of the harvesting device near a conveyance part. It is a top view which shows the modification of a cutting crop conveyance part. It is a perspective view which shows the modification regarding the conveyance part of a fruit, and its periphery structure. It is a front view of the fruit separation part vicinity which concerns on the modification of FIG. It is a perspective view which shows another modification of a cutting crop conveyance part. It is the figure which looked at the cut crop conveyance part which concerns on the modification of FIG. 11 from the direction orthogonal to both the conveyance direction and left-right direction of a crop.

  Hereinafter, harvesting machine 1 which is one form for carrying out the present invention is explained, referring to drawings. The harvesting machine 1 includes a traveling device 2 and a harvesting device 3 attached to the rear part of the traveling device 2. In FIG. 1, the traveling device 2 is indicated by a two-dot chain line, and the harvesting device 3 is indicated by a solid line. The traveling device 2 is a four-wheel so-called agricultural tractor, and includes a vehicle body 21, front wheels 22, rear wheels 23, a driver's seat 24, a steering unit (handle) 25, and the like. In the following description, the front, rear, left, right, and up directions are based on the direction viewed from the driver seated on the driver seat 24. The vehicle body 21 has a vehicle body front portion 21 a provided with a front wheel 22 and a vehicle body rear portion 21 b provided with a rear wheel 23. The front wheel 22 and the rear wheel 23 correspond to the ground contact portion of the present invention. The vehicle body front portion 21a has a box-like schematic shape that is long in the front-rear direction, and projects forward from the front end at the lower portion of the vehicle body rear portion 21b. An engine is accommodated in the vehicle body front portion 21a. Part of the driving force generated by the engine is transmitted to the rear wheel 23 by a transmission mechanism disposed below or below the vehicle body 21. Thereby, the traveling device 2 travels in the front-rear direction by driving the rear wheel 23.

  Another part of the driving force generated by the engine is transmitted to the rear of the vehicle body 21 by a hydraulic transmission mechanism disposed below or below the vehicle body 21. The hydraulic transmission mechanism has a pipe such as a tube filled with hydraulic oil therein, and transmits a driving force to a place different from the engine by transmitting pressure to the hydraulic oil in the pipe. This driving force is used to drive the mounting mechanism 25 as will be described later. Still another part of the driving force generated by the engine is transmitted to the PTO shaft 29 described later. A driving force is transmitted to the PTO shaft 29 separately from the transmission mechanism to the rear wheel 23 and the hydraulic transmission mechanism.

  The rear part 21b of the vehicle body has a box-like schematic shape that is long in the vertical direction, and a driver's seat 24 is accommodated therein and in the upper part. The outer wall of the rear part 21b of the vehicle body is made of a transparent material such as glass at a portion that contacts the periphery of the driver's seat 24. Thereby, the driver seated in the driver's seat 24 can drive while looking outside the vehicle body 21. In the vicinity of the driver's seat 24, in addition to the steering unit 41, steering devices such as an accelerator and a shift change operation unit are provided. Accordingly, the driver drives the engine while controlling the engine by operating an accelerator or the like. Further, the gear ratio of the transmission mechanism that transmits the driving force of the engine to the rear wheels 23 is changed by a shift change, or forward and reverse are switched. The traveling device 2 may be four-wheel drive. That is, the driving force may be transmitted to the front wheels 22. Further, the driver steers the traveling device 2 by operating the steering unit 41. The operation of the steering unit 41 is transmitted to the front wheels 22 by a transmission mechanism 42 provided in the vehicle body front portion 21a. By changing the direction of the front wheel 22 in accordance with the operation of the steering unit 41, the traveling device 2 turns in the left-right direction while moving forward or backward. An operation unit for operating a mounting mechanism 25 described later is also provided around the driver seat 24.

  As shown in FIG. 2, a mounting mechanism 25 to which the harvesting device 3 is mounted is provided at the rear end and the lower portion of the vehicle body rear portion 21b. The mounting mechanism 25 has link arms 25a to 25c. The link arms 25a to 25c respectively correspond to link units 31 to 33 on the harvesting device 3 side described later. In FIG. 2, only the link arms 25a and 25c are shown. The link arm 25b and its driving mechanism are configured symmetrically with the link arm 25c. In the following, only the link arm 25c will be mainly described. The link arms 25a to 25c are supported by a lower frame 26 provided at the lower portion of the vehicle body rear portion 21b. The lower frame 26 also supports the axle 23x of the rear wheel 23.

  The link arm 25a is an arm member that is long in the front-rear direction, and its front end is supported by the lower frame 26 so as to be rotatable in the R1 direction around the support portion 26a. The link arm 25a has a hydraulic cylinder 25s and a rear arm 25t connected to a cylinder rod in the hydraulic cylinder 25s. The hydraulic cylinder 25s reciprocates the rear arm 25t in the Q1 direction by the driving force transmitted from the engine through the hydraulic driving mechanism. This operation can be operated via an operation unit provided around the driver's seat 24. A through hole 25x penetrating in the left-right direction is formed at the rear end of the link arm 25a.

  The link arm 25c is an arm-like member elongated in the front-rear direction, and a notch 25z that opens upward is formed at the rear end. A notch 25y similar to the notch 25z is formed at the rear end of the link arm 25b. The front end portion of the link arm 25c is supported by a support portion 26b provided on the lower frame 26 so as to be rotatable in the R2 direction. The link arm 25 c is connected to the hydraulic drive arm 28.

  The hydraulic drive arm 28 includes a hydraulic cylinder 28s and a rod 28t having an upper end inserted into the hydraulic cylinder 28s from below. The lower end portion of the rod 28t is supported by the link arm 25c so as to be rotatable in the R3 direction around the support portion 28a. The upper end portion of the hydraulic cylinder 28s is supported by the support arm 27 so as to be rotatable in the R4 direction around the support portion 27a. The support arm 27 is fixed to the lower frame 26. The hydraulic cylinder 28s reciprocates the rod 28t in the Q2 direction by the driving force transmitted from the engine through the hydraulic driving mechanism. As a result, the link arm 25c rotates in the R2 direction around the support portion 26b. The movement of the rod 28 t by the hydraulic cylinder 28 s can be operated via an operation unit provided around the driver seat 24.

  A PTO shaft 29 protrudes rearward from the rear end of the lower frame 26. As described above, the PTO shaft 29 is rotated by the driving force transmitted from the engine.

  Next, the harvesting device 3 attached to the traveling device 2 via the attachment mechanism 25 will be described. As shown in FIG. 1, the harvesting device 3 includes a harvesting side drive source 30 (support) that supplies driving force to each unit by hydraulic pressure, a harvesting unit 100 that harvests crops in the field, and a transport unit that transports the harvested crops. 200 (first transport unit) and a storage unit 300 for storing the transported crop. In the present embodiment, the harvesting unit 100, the transport unit 200, and the storage unit 300 are all supported by the harvesting side drive source 30. The harvesting side drive source 30 has a box-like schematic shape that is long in the left-right direction. A PTO shaft 34 connected to the PTO shaft 29 on the traveling device 2 side is provided on the front surface. In the harvesting side drive source 30, a hydraulic oil supply unit that supplies the drive force transmitted from the PTO shaft 29 via the PTO shaft 34 by hydraulic pressure is provided. A hydraulic cylinder and a hydraulic motor described below are connected to a hydraulic oil supply unit via a tube such as a tube filled with hydraulic oil. The harvesting side drive source 30 supplies driving force to the hydraulic oil by circulating the hydraulic oil between the hydraulic oil supply unit and the hydraulic cylinder or hydraulic motor.

  Further, on the front surface of the harvesting side drive source 30, link portions 31 to 33 constituting a mounting portion to the traveling device 2 are provided. As shown in FIG. 2, the link portion 31 is formed with a through hole 31 x that penetrates the link portion 31 in the left-right direction. The through holes 31x are overlapped with the through holes 25x formed in the link arm 25a on the traveling device 2 side, and the shafts are passed through these through holes, so that the link portion 31 and the link arm on the traveling device 2 side are provided. 25a is connected. The link portions 32 and 33 are formed with notches 32y and 33z opened downward, respectively. Although only the link portion 33 and the notch 33z are shown in FIG. 2, the configuration of the notch 32y is the same. After the notches 32y and 33z are overlapped with the notches 25y and 25z of the link arms 25b and 25c, a single rod-like member is passed through these notches along the axis A1 in FIG. The link parts 32 and 33 are linked to the link arms 25b and 25c by being appropriately fixed to the link parts 32 and 33 with a fixing member such as a nut or a nut.

  The harvesting side drive source 30 moves up and down by driving the hydraulic cylinder 25s, the hydraulic cylinder 28s and the like in a state where the link portions 31 to 33 are connected to the link arms 25a to 25c. Thereby, the harvesting side drive source 30 can selectively take the state separated from the ground (the state shown in P1 in FIG. 2) and the grounded state (the state shown in P2 in FIG. 2). In addition, although the case where the harvesting side drive source 30 moves up and down in the vertical direction is shown in FIG. 2, the harvesting side drive source 30 may be moved up and down so as to rotate around the support portions at the front ends of the link arms 25 a to 25 c.

  Two forks 35 (container support portions) that protrude rearward are fixed to the lower rear portion of the harvesting side drive source 30. The two forks 35 are spaced apart from each other at the same height in the left-right direction.

  As shown in FIGS. 1 to 3, the housing unit 300 includes a container 301 having a substantially rectangular parallelepiped shape that is long in the left-right direction. The container 301 has a box-like schematic shape that is long in the left-right direction and opens upward. Inside, an accommodation space 301a for accommodating crops is formed from an upper opening. The upper part of the outer wall constituting the front surface of the container 301 is opened, thereby forming an opening 301b. Thus, the container 301 is formed such that only the front outer wall is lower than the other outer walls. However, all of the front surface, the back surface, the right side surface, and the left side surface may be formed as low as the outer wall of the front surface of the container 301 (that is, a so-called half container may be used). An insertion portion 301c into which the fork 35 is inserted is provided further below the bottom surface of the accommodation space 301a. The insertion portion 301 c is open on the front surface of the container 301. This opening corresponds to the insertion slot of the present invention.

  For example, assume that the container 301 is placed on the ground. At this time, when the traveling device 2 travels in the front-rear direction with the fork 35 disposed at the same height as the insertion portion 301c, the fork 35 is inserted into and removed from the insertion portion 301c as shown in FIG. A solid line in FIG. 3 shows a state in which the fork 35 is extracted from the insertion portion 301c. The two-dot chain line indicates the harvesting side drive source 30 and the fork 35 in a state where the fork 35 is inserted into the insertion portion 301c. When the mounting mechanism 25 of the traveling device 2 raises the harvesting side drive source 30 in a state where the fork 35 is inserted into the insertion portion 301c (state P2 in FIG. 2), the container 301 is supported by the fork 35. (State P1 in FIG. 2).

  Next, the harvesting unit 100 will be described with reference to FIGS. 1 and 4 to 7. As shown in FIG. 1, the harvesting unit 100 corresponds to the right side portion of the entire harvesting device 3. The harvesting unit 100 has a lower frame 101 fixed to the harvesting side drive source 30 via a fixing unit 102. The lower frame 101 is fixed to the harvesting side drive source 30 so that the entire lower frame 101 is positioned above the bottom surface of the harvesting side drive source 30. The lower frame 101 extends in the front-rear direction from the vicinity of the front portion of the vehicle body rear portion 21 b of the traveling device 2 to the vicinity of the rear end of the fork 35. A wheel support arm 103 is supported at the front end of the lower frame 101. The wheel support arm 103 extends in the front-rear direction, and the rear end thereof is supported by the lower frame 101 so as to be rotatable in the R5 direction around the support portion 101a (see FIG. 4). A gauge wheel 104 is supported at the front end of the wheel support arm 103 so as to be rotatable about a shaft 103a.

  The lower frame 101 supports the rear end portion of the hydraulic cylinder 105 via the cylinder support arm 112. The cylinder support arm 112 is fixed to the lower frame 101 slightly behind the support portion 101a and extends upward from the lower frame 101. The hydraulic cylinder 105 is supported by the cylinder support arm 112 so as to be rotatable in the R6 direction around a support portion 101b provided at the upper end of the cylinder support arm 112 (see FIG. 4). A rod 106 protrudes forward from the front end of the hydraulic cylinder 105. A support portion 103 b that supports the rod 106 is provided slightly forward of the support portion 101 a of the wheel support arm 103. The front end portion of the rod 106 is supported by the lower frame 101 so as to be rotatable in the R7 direction around the support portion 103b (see FIG. 4). The hydraulic cylinder 105 drives the rod 106 so as to enter and exit along the Q3 direction. When the rod 106 moves along the Q3 direction, the wheel support arm 103 rotates in the R5 direction around the support portion 101a.

  The harvesting side drive source 30 can selectively take a state in which the hydraulic oil can freely flow with the hydraulic cylinder 105 and a state in which the hydraulic oil can stop flowing with the hydraulic cylinder 105. . In the former state, the rod 106 freely enters and exits in the Q3 direction as the wheel support arm 103 operates. In the latter state, the rod 106 is held at a predetermined protruding position in the Q3 direction.

  A cutter support arm 107 protruding toward the traveling device 2 in the left-right direction is fixed to the wheel support arm 103. A rotary shaft 107a is rotatably supported by the cutter support arm 107, and a cutter 108 (a crop separating unit) is fixed to the rotary shaft 107a. The rotating shaft 107a is rotationally driven by a hydraulic motor. The cutter 108 cuts the crop α that grows in the field and separates it into an upper α1 (a portion to be harvested) with a fruit body β and a lower α2 (see FIG. 4). As shown in FIG. 4, the cutter 108 is disposed in front of the driver seat 24 in the front-rear direction. For this reason, the driver can drive the traveling device 2 while observing the situation where the crop α is cut by the cutter 108.

  The wheel support arm 103 is fixed to the lower end portion of the fixed arm 109 in front of the support portion 103b. The upper end portion of the fixed arm 109 is fixed to the lower end portion of the fixed arm 110 at the fixed portion 109a. The upper end of the fixed arm 110 is fixed to the U-shaped frame 111. The U-shaped frame 111 will be described later. The fixed arms 109 and 110 are fixed to the U-shaped frame so that the lower end portion of the fixed arm 109 presses the wheel support arm 103 downward. Therefore, in a state where the hydraulic fluid can freely flow between the harvesting side drive source 30 and the hydraulic cylinder 105, the wheel support arm 103 rotates downward about the support portion 101a, and the wheel 104 is brought to the ground. It is held in a pressed state.

  During the harvesting of the crop, the working oil is allowed to freely flow between the harvesting side drive source 30 and the hydraulic cylinder 105. Thus, since the rod 106 freely enters and exits in the Q3 direction, the wheel support arm 103 supports the support portion so that the wheel 104 moves up and down following the shape of the ground even when there is some unevenness on the ground of the field. Rotate in the R5 direction around 101a. Therefore, the ground contact between the wheel 104 and the ground is ensured. On the other hand, when the harvesting machine 1 moves at a time other than during harvesting, the harvesting side drive source 30 and the hydraulic cylinder 105 are placed with the wheel 104 separated from the ground against the pressing force of the fixed arm 109. Is stopped. Thereby, the harvester 1 can be moved while the wheel 104 is separated from the ground.

  The harvesting unit 100 further includes a cut crop conveyance unit 120 (second conveyance unit), a crop drawing unit 140, and a fruit separation unit 150. Each of these components is supported by the lower frame 101 so as to be positioned above the bottom surface of the lower frame 101. Accordingly, none of the components of the harvesting unit 100 except for the wheel 104 and the wheel support arm 103 are disposed below the lower frame 101. The cut crop conveyance unit 120 conveys the crop upper part α1 separated by the cutter 108 backward. The crop pull-in unit 140 is disposed so as to protrude further forward than the front part of the cut crop conveyance unit 120, and guides the crop grown on the farm field to be drawn into the front end of the cut crop conveyance unit 120. The fruit separating unit 150 separates the fruit body β from the crop upper part α1 conveyed by the cut crop conveying unit 120. Hereinafter, each of these components will be described in more detail.

  As shown in FIGS. 1 and 4 to 7, the cut crop transporting unit 120 is arranged from the vicinity of the cutter 108 to the rear end of the harvesting unit 100 in the front-rear direction, and from the slightly upper side of the cutter 108 in the vertical direction. It extends further upward from the top. The cut crop conveying unit 120 is disposed on the upper part of the harvesting unit 100 corresponding to the right side portion of the entire harvesting device 3. The cut crop conveyance unit 120 includes a conveyance frame 121, a conveyance belt 122, conveyance rollers 123 and 124, a pulley 130, and a sandwiching unit 125 disposed so as to sandwich the conveyance belt 122 between the pulley 130. . The conveyance frame 121 extends from the vicinity of the front end of the cut crop conveyance unit 120 to the rear end. A transport roller 123 is rotatably supported at the front end portion of the transport frame 121, and a transport roller 124 is rotatably supported at the rear end portion of the transport frame 121. The rear end portion of the transport frame 121 is fixed to the upper end portion of the U-shaped frame 125. The lower end of the U-shaped frame 125 is fixed to the lower frame 101.

  An endless transport belt 122 is wound around the transport rollers 123 and 124. The rotation shaft of the transport roller 124 is driven to rotate by a hydraulic motor. When the conveyance roller 124 is driven, the conveyance belt 122 travels along the arrows C1 and C2 in FIG.

  As shown in FIGS. 1 and 5, the sandwiching portion 125 is a plate-like member that extends along a traveling path closer to the harvesting side drive source 30 of the conveyance belt 122, and the upper part of the crop is between the conveyance belt 122. Hold α1. As shown in FIG. 5 with respect to the longitudinal section, the sandwiching portion 125 includes a flat plate portion 125a along the vertical direction, and a protruding portion 125b protruding from the upper end portion and the lower end portion of the flat plate portion 125a toward the conveying belt 122. have. The clamping unit 125 extends from a position facing the conveying roller 123 to the U-shaped frame 125, and is fixed to the U-shaped frame 125 at the rear end. The sandwiching portion 125 is arranged so that the tip of the protruding portion 125 b is close to the conveyance belt 122 in the left-right direction. When the clamping unit 125 clamps the crop upper part α1 with the conveyor belt 122, the tip of the projecting part 125b contacts the crop upper part α1 (see FIG. 5). The position where the clamping unit 125 and the conveyor belt 122 start to clamp the crop upper part α1 is adjusted so as to be disposed slightly forward of the cutter 108.

  As shown in FIG. 5, the pulley 130 includes a cylindrical pulley body 131 and a pulley support arm 132 that rotatably supports a rotating shaft 131 a of the pulley body 131. The pulley support arm 132 is supported by the conveyance frame 121 so as to press the conveyance belt 122 toward the clamping unit 125. The degree of pressing is adjusted such that a predetermined gap Δ (see FIG. 5) is formed between the protruding portion 125b and the conveyor belt 122. The gap Δ has a width suitable for holding the stem of the crop upper part α1. As shown in FIG. 1, a plurality of pulleys 130 are provided along the conveyor belt 122. While the pulley 130 presses the conveyance belt 122 toward the clamping unit 125, the conveyance belt 122 and the clamping unit 125 clamp the crop upper part α1. In this state, the conveyance belt 122 travels with respect to the clamping unit 125, whereby the crop upper part α1 is conveyed in the traveling direction of the conveyance belt 122 while being sandwiched between the conveyance belt 122 and the clamping unit 125.

  As shown in FIG. 1, a U-shaped frame 111 is fixed in the vicinity of the front portion of the cut crop conveyance unit 120. The U-shaped frame 111 is arranged in an inverted U shape so as to straddle the transport frame 121 and the sandwiching portion 125, and is fixed to the right side surface of the transport frame 121 and the left side surface of the sandwiching portion 125. Thereby, the U-shaped frame 111 plays a role of fixing the transport frame 121 and the sandwiching portion 125 together. Further, the U-shaped frame 111 is fixed to the wheel support arm 103 via the fixed arms 109 and 110 as described above. Thus, the wheel support arm 103 and the transport frame 121 are fixed together.

  As shown in FIG. 1, the crop pulling unit 140 includes rollers 141 and 142, a roller support arm 143, a pulling belt 144, and a pulling arm 145. The pull-in arm 145 is a flat plate member connected to the front end of the clamping unit 125 of the cut crop transporting unit 120. The retractable arm 145 protrudes forward from the front end of the sandwiching portion 125 while moving to the left.

  The roller 141 is supported on the rear end portion of the roller support arm 143 so as to be rotatable coaxially with the transport roller 123. When the transport roller 123 rotates, the roller 141 integrated with the transport roller 123 also rotates in synchronization with the rotation of the transport roller 123. The roller support arm 143 protrudes forward from the upper side of the roller 141 toward the right. A roller 142 is rotatably supported at the front end of the roller support arm 143. The pull-in belt 144 is wound around the rollers 141 and 142. A plurality of protrusions 144 a protruding outward are provided on the outer peripheral surface of the pull-in belt 144. When the roller 141 rotates, the pull-in belt 144 travels, and the roller 142 also rotates following this.

  When the traveling device 2 travels forward, the crop growing on the farm field is taken into the space between the retracting belt 144 and the retracting arm 145 from the front. When the pull-in belt 144 travels, the projection 144a pulls in the crop and guides the crop to the pinching position between the conveyance belt 122 and the pinching portion 125 with the pull-in arm 145.

  As shown in FIGS. 1, 6, and 7, the fruit separating unit 150 is disposed below the middle part of the cut crop conveying unit 120. The fruit separation unit 150 includes separation rods 151 and 152, rod support portions 153 and 154, and a fixed frame 155. The rod support portion 153 is directly fixed to the lower portion of the transport frame 121. The rod support portion 154 is fixed to the lower portion of the transport frame 121 via the fixed frame 155 so as to be disposed behind and below the rod support portion 153.

  As shown in FIG. 6, the separating rod 152 has a cylindrical shaft center 152a and a protrusion 152b that protrudes outward from the outer peripheral surface of the shaft center 152a. The protrusion 152b extends in a spiral shape around the shaft center 152a so as to face backward in the clockwise direction when viewed from the front. The separation rod 151 has the same axial center and projection as the separation rod 152. The protruding portion of the separating rod 151 is formed so as to spiral backward in a counterclockwise direction when viewed from the front. The separation rods 151 and 152 are supported by rod support portions 153 and 154 so as to be rotatable around their respective central axes while leaving a gap in the left-right direction so that the stems of the crop upper part α1 can pass between each other. . The separation rods 151 and 152 are disposed so as to extend obliquely downward from the front end portion toward the rear end portion by the front end portion being supported by the rod support portion 153 and the rear end portion being supported by the rod support portion 154. ing. The separation rod 152 is rotationally driven in the R8 direction of FIG. 6 by a hydraulic motor. The separation rod 151 is rotationally driven in a direction opposite to the R8 direction by a hydraulic motor.

  When the cut crop transport unit 120 transports the crop upper part α1 in the Q4 direction in FIG. 6, the fruit body β approaches the separation rods 151 and 152 from below as the crop upper part α1 moves backward. When the fruit body β comes into contact with the separation rods 151 and 152, the fruit body β is pressed downward by the rotating separation rods 151 and 152. Since the crop upper part α1 is transported obliquely upward by the cut crop transport unit 120, the fruit body β is pressed against the separating rods 151 and 152. Eventually, fruit body β is rubbed off from the stem. The crop upper part α1 after the fruit body β is separated from the stalk is transported further rearward by the cut crop transporter 120 and discharged to the rear of the harvester 100.

  Next, the conveyance part 200 is demonstrated, referring FIG.1, FIG6 and FIG.7. The transport unit 200 transports the fruit body β separated from the crop stalk in the harvesting unit 100 to the container 301. The transport unit 200 is supported by the harvesting side drive source 30 via a frame (not shown) so that the entire transport unit 200 is disposed above the bottom surface of the harvesting side drive source 30. The transport unit 200 includes an endless transport belt 201, transport rollers 202 and 203, and a damper unit 210.

  The transport rollers 202 and 203 have the same general cylindrical shape and size, and are rotatably supported by the frame. As shown in FIG. 7, the transport roller 202 is below the rod support portion 153 of the fruit separating unit 150, such that the rotation shaft extends from the left to the right from the front to the rear, and the front-rear direction and the left-right direction. Are inclined with respect to both directions. The conveyance roller 202 substantially straddles the cut crop conveyance unit 120 in the left-right direction. The conveyance roller 203 is disposed above the container 301 in parallel with the conveyance roller 202. The conveyor belt 201 is wound around the conveyor rollers 202 and 203. The width of the conveyor belt 201 is substantially the same as the width of the conveyor rollers 202 and 203. The conveyance belt 201 substantially overlaps with the separation rods 151 and 152 in the front-rear direction in plan view. Therefore, almost all the fruit bodies β separated from the crop upper part α1 by the separating rods 151 and 152 fall on the upper surface without being detached from the conveying belt 201. A conveyor chain may be used instead of the conveyor belt 201.

  The conveyance roller 202 is rotationally driven by a hydraulic motor. When the transport roller 202 rotates, the upper half of the transport belt 201 moves up to the left and rear while rising from the transport roller 202 and travels toward the transport roller 203 through the opening 301 b of the container 301. Accordingly, the fruit body β placed on the upper surface of the transport belt 201 is carried into the container 301 from the front. As shown in FIGS. 6 and 7, the fruit conveyance direction is a direction from the front to the rear, from the right to the left, and from the lower to the upper side. That is, the fruit conveyance direction of this embodiment inclines with respect to both the left-right direction and the front-back direction.

  The damper unit 210 is disposed at the most downstream position in the conveyance path by the conveyance belt 201. As shown in FIGS. 1 and 7, the damper unit 210 includes a damper 211, a damper rotating portion 212, and a damper support arm 213. The damper 211 is a plate-like member that curves from the upper part of the container 301 downward to the inside of the container 301 and curved forward. The fruit body β transported by the transport belt 201 falls downward from the upper surface of the belt at the most downstream position in the transport path. At that time, the fruit body β smoothly falls into the accommodation space 301 a in the container 301 along the surface of the damper 211. Thereby, it is suppressed that fruit body (beta) is damaged by the impact of a fall. The damper 211 is connected to the damper rotating part 212 via a damper support arm 213. The damper rotation unit 212 includes a hydraulic motor, and can rotate the damper support arm 213 in the R9 direction in FIG. Therefore, it is possible to suppress the drop distance of the fruit body β from increasing by raising and lowering the damper 211 according to the amount of the fruit body β accumulated in the container 301.

  According to the present embodiment described above, the harvesting unit 100, the transport unit 200, and the storage unit 300 constituting the harvesting device 3 are all supported by the harvesting side drive source 30. And the harvesting part 100 is arrange | positioned above the bottom face of the harvesting side drive source 30 except the wheel 104 and the wheel support arm 103 as above-mentioned. Further, the entire transport unit 200 is also disposed above the bottom surface of the harvesting side drive source 30. Therefore, when the harvesting side drive source 30 is lifted by the mounting mechanism 25 of the traveling device 2 so that the bottom surface of the container 301 supported by the fork 35 and the bottom surface of the harvesting side drive source 30 are separated from the ground (FIG. 2). The harvesting device 3 is separated from the ground in the entire range except for the wheel 104. Therefore, when the harvester 1 is caused to travel in this state, there is no grounding portion behind the rear wheel 23 of the traveling device 2. Thereby, when steering the traveling apparatus 2, the grounding part which draws a locus | trajectory by turning does not exist behind the rear wheel 23, and the turning performance of the harvester 1 becomes high.

  Thus, the harvesting device 3 is attached to the traveling device 2 so as to be separated from the ground behind the rear wheel 23 of the traveling device 2. For this reason, weight reduction of the harvesting device 3 and improvement of the weight balance are important issues. The harvesting unit 100, the transport unit 200, and the storage unit 300 of this embodiment all contribute greatly to the solution of the problem as described below. In this sense, the features described below with respect to the harvesting unit 100, the transport unit 200, and the storage unit 300 are closely related to the present invention. However, these features do not require the configuration that “the harvesting device 3 is mounted on the traveling device 2 so as to be separated from the ground behind the rear wheel 23 of the traveling device 2”. It is also a feature that is established independently. Therefore, these features do not necessarily assume that the traveling device and the harvesting device are detachably mounted when employed apart from the present invention. For example, a self-propelled harvester in which the traveling device and the harvesting device are integrally configured so as not to be separated may be used. Also, the traveling system does not depend on whether it is a wheel type or a caterpillar type. Further, in some cases, the harvesting unit 100, the transport unit 200, and the storage unit 300 are not related to each other, and any one of these can be established independently of other configurations.

  The harvesting unit 100 transports the crop upper part α1 by running the transport belt 122 with respect to the clamping unit 125 in a state where the crop upper part α1 is sandwiched between the transport belt 122 and the sandwiching part 125 in the left-right direction. That is, since the conveyance belt 122 is provided on one side in the left-right direction, it is necessary to provide the pulley 130 and a driving mechanism for the belt. However, the other clamping part 125 does not require a pulley or a drive mechanism. Therefore, compared with the prior art which arrange | positions a conveyance belt on both sides, the conveyance apparatus which conveys a crop can be comprised compactly and lightweight.

  Further, when the clamping unit 125 clamps the crop upper part α1 with the conveyance belt 122, the tip of the projecting part 125b contacts the crop upper part α1. Therefore, for example, compared with the case where the whole clamping part has a simple flat plate shape, the contact area with the crop upper part α1 in the clamping part 125 is small. Therefore, the pressure which presses crop upper part α1 becomes large, and crop upper part α1 is clamped firmly. In particular, in the vicinity where the fruit separating unit 150 is arranged, the fruit separating unit 150 squeezes the fruit body β downward from the crop upper part α1. This operation may cause the entire crop upper part α1 to be dragged off from the cut crop conveying unit 120. On the other hand, since the clamping unit 125 firmly clamps the crop upper part α1 between the conveyance belt 122 as described above, the crop upper part α1 is not easily dragged down by the fruit separating unit 150.

  In addition, the case where the whole clamping part has a simple flat plate shape is also within the scope of the present invention. Compared to this case, in order to securely clamp the crop upper part α1, the clamping part may be configured as follows. That is, in the shape of the longitudinal section of the sandwiching section (cross-sectional shape corresponding to FIG. 5), the sandwiching section is such that only a part of the surface on the conveyor belt 122 side in the vertical direction contacts the crop upper part α1. It only has to be configured. In the aspect of FIG. 5, the front end surface of the protrusion 125b corresponds to the partial range.

  The crop pulling unit 140 has a pulling belt 144 and a belt driving mechanism such as a roller 141 on one side in the left-right direction, and a pulling arm 145 on the other side. For this reason, the whole crop drawing-in part 140 is comprised compactly and lightweight compared with the case where a drawing-in belt is provided in both sides. It is within the scope of the present invention when the other side is provided with a retractable belt and its driving mechanism, and when both are provided with retractable arms.

  The transport unit 200 transports the fruit body β separated from the stem by the fruit separating unit 150 to the container 301. In this case, the transport direction is a direction from front to rear, from right to left, and from below to above. That is, the transport unit 200 transports the fruit body β along the direction inclined in both the front-rear direction and the left-right direction toward the container 301. The reason for this configuration is as follows.

  In the fruit separating unit 150, the position where the fruit body β is separated is not always the same position. In particular, the fruit separating unit 150 of the present embodiment cuts off the fruit body β from the crop upper part α1 conveyed rearward by the separating rods 151 and 152 that are long in the front-rear direction. For this reason, the position where fruit body (beta) is isolate | separated is not decided in which of the range which the separation rods 151 and 152 extend. Therefore, in order to ensure that the separated fruit body β is received by the transport belt, the receivable range of the transport belt is defined as the range where the fruit body β may be separated, that is, the fall range of the fruit body. It is preferable to overlap as much as possible in the front-rear direction. In addition, although it is possible to cover the fall range of a fruit body using an additional conveyance apparatus, since an apparatus increases, it is not preferable.

  By the way, as a method for conveying the separated fruit body to the container, there are conventionally two methods: a first method for unloading the fruit body β from the separation position in the left-right direction and a second method for unloading the fruit body β backward. However, according to the first method, since the conveyor belt overlaps with the fall range of the fruit body as much as possible in the front-rear direction, it is necessary to have a wide configuration in the front-rear direction (direction perpendicular to the belt traveling direction). Therefore, there is a possibility that the entire conveying device including the conveying belt becomes excessive. In addition, after the fruit body is carried out from the separation position in the left-right direction, when the fruit body is further carried into the rear container, an additional transport device is eventually required.

  On the other hand, according to the second method, the conveying device extends backward from the fruit separation position. Therefore, when the fruit body separation position is arranged on one side in the left-right direction of the harvesting device as in the present embodiment, the transport device is also biased toward that side. Therefore, the weight of the harvesting device is biased to one side in the left-right direction. In addition, since it is usually difficult to dispose the container directly behind the separation device, the container is disposed so as to be shifted in the left-right direction from the separation position. Therefore, after all, another transport device that transports the fruit body transported rearward in the left-right direction must be added. In this case, the weight is further biased.

  On the other hand, the conveyance part 200 of this embodiment conveys the fruit body (beta) diagonally regarding both the front-back direction and the left-right direction toward the container 301 from the fruit separation part 150 which is a separation position. As a result, as shown in FIG. 7, the fall range of fruit body β (the range in which separation rods 151 and 152 extend) is inclined with respect to the belt running direction (fruit conveyance direction). Therefore, since the width of the conveyance belt 201 has only to be ensured in an oblique direction with respect to the belt traveling direction, the width of the conveying belt 201 need not be so wide in the direction orthogonal to the belt traveling direction. For this reason, it can suppress that a conveying apparatus becomes excessive. Further, by making the transport direction oblique, the separation position of the fruit body β and the container 301 can be directly connected by a single linear transport path. For this reason, it is not necessary to add a transport apparatus. Furthermore, the conveyance part 200 has taken the structure which carries in the fruit body (beta) to the container 301 from the front. Therefore, compared with the case of the said 2nd method, the conveyance part 200 is located in the center in the left-right direction with respect to the whole harvesting apparatus 3. Therefore, the weight of the harvesting device 3 is not easily biased to one side in the left-right direction. In addition, since it becomes the structure which carries in a fruit body from the front also in the case of the said 1st method, compared with a 2nd method, a weight is hard to be biased.

  As shown in FIG. 3, when the traveling device 2 travels backward with the harvesting device 3 attached, the fork 35 is inserted into the container 301 (the insertion portion 301c thereof). Thereafter, as shown in FIG. 2, when the mounting mechanism 25 raises the harvesting side drive source 30, the container 301 is supported by the fork 35. In this manner, the container 301 can be installed in the harvesting device 3 by operating the traveling device without loading and unloading the container 301 with another device.

  In addition, in the present embodiment, in the state where the hydraulic oil can freely flow between the harvesting side drive source 30 and the hydraulic cylinder 105, as described above, the wheel 104 and the wheel support arm 103 are uneven on the ground. Move to follow. On the other hand, a cutter 108 is supported on the wheel support arm 103 via a cutter support arm 107. Therefore, when the wheel support arm 103 follows the unevenness of the ground, the cutter 108 also moves up and down following this. Thereby, even when the ground is uneven, the distance of the cutter 108 from the ground is easily held constant. If the ground is uneven, the appropriate cutting position on the crop α is likely to move up and down according to the unevenness. However, if the distance of the cutter 108 from the ground is kept constant, the position at which the cutter 108 cuts the crop α also moves up and down. Held constant in direction. Therefore, it is always cut at an appropriate position. Further, the wheel support arm 103 is fixed to the front portion of the cut crop conveying unit 120 via fixed arms 109 and 110 and a U-shaped frame 111. For this reason, since the front part of the cutting crop conveyance part 120 also follows the wheel 104 and goes up and down, the position where the cutting crop conveyance part 120 clamps crop upper part (alpha) 1 is also hold | maintained appropriately.

<Modification>
The above is a description of a preferred embodiment of the present invention, but the present invention is not limited to the above-described embodiment, and various modifications can be made within the scope described in the means for solving the problem. It is possible.

  For example, in the above-mentioned embodiment, although the traveling apparatus 2 is a structure which has a wheel, the structure which has a crawler may be sufficient. In this case, the traveling device travels by rotating the crawler while grounding the crawler on the ground and supporting the vehicle body. In addition, steering is possible by changing the rotation speed between the crawlers on the left and right sides.

  In the above-described embodiment, the fixed arms 109 and 110 are fixed to each other, and the wheel support arm 103 and the U-shaped frame 111 are also fixed to each other. However, these may be configured so that the fixed arms 109 and 110 can rotate in the R8 direction of FIG. That is, the fixed arms 109 and 110 are rotatably supported at the position of the fixed portion 109a, the lower end portion of the fixed arm 109 is rotatably supported by the wheel support arm 103, and the upper end portion of the fixed arm 110 is U-shaped. The frame 111 may be rotatably supported. According to this, the vertical position of the cut crop conveyance unit 120 can be adjusted with respect to the wheel support arm 103.

  Further, in the above-described embodiment, the harvesting unit 100 supported by the harvesting side drive source 30, the transport unit 200, and the storage unit are caused by the mounting mechanism 25 provided on the traveling device 2 side moving the harvesting side drive source 30 up and down. 300 moves up and down integrally. However, an elevating mechanism may be provided on the harvesting device side, and the elevating mechanism may elevate and lower the harvesting unit 100, the transport unit 200, and the storage unit 300. This case is also within the scope of the present invention, but the configuration of the above-described embodiment is preferable because the weight on the harvesting device side tends to increase.

  In the above-described embodiment, the cutter 108 cuts the crop α up and down to separate the crop upper portion α1 from the crop lower portion α2. However, instead of the cutter 108, a pulling mechanism for separating the crop α from the field by pulling out the crop α may be provided. Moreover, although the cutter 108 is arrange | positioned ahead of the driver's seat 24, what is necessary is just the position hooked on the driver's seat 24 in the front-back direction.

  In the above-described embodiment, the ground contact portion other than the front wheel 22 and the rear wheel 23 of the traveling device 2 is limited to the wheel 104. However, a plurality of wheels such as the wheel 104 may be provided. In this case, the position of the wheel may be the same position as the rear wheel 23 in the front-rear direction or in front of it. At this time, since the ground contact portion of the harvester 1 is limited to the same range as the traveling device 2 in the front-rear direction, the range that affects the turning motion when the traveling device 2 is steered is limited to the range of the traveling device 2. . Therefore, the turning performance of the entire harvester 1 is unlikely to deteriorate.

  Moreover, in the above-mentioned embodiment, the wheel is not provided behind the rear wheel 23 on the harvesting device 3 side. However, the harvesting device 3 may be provided with wheels at a position behind the rear wheel 23. Even in this case, if the traveling device 2 travels in a state where the mounting mechanism 25 raises the harvesting device 3 so that the wheel is separated from the ground, the wheel does not affect the turning motion at the time of steering. . Further, in a situation where there is no problem even if the turning performance is reduced, the harvesting device 3 can be stably supported by the wheels by lowering the harvesting device 3 to the mounting mechanism 25 and grounding the wheels.

  In the above-described embodiment, the cut crop conveyance unit 120 is configured such that the conveyance belt 122 is provided on the right side and the clamping unit 125 is provided on the left side. However, as shown in FIG. 8, a belt mechanism 420 having the same configuration as the right conveying belt 122 and its peripheral configuration may be provided instead of the clamping unit 125. The belt mechanism 420 is provided with a driven belt 422. The crop is sandwiched between the conveyance belt 122 and the driven belt 422. However, no drive source is provided on the belt mechanism 420 side. When the hydraulic motor rotates the right conveying roller 124, the conveying belt 122 travels. Then, the driven belt 422 is driven as the conveyance belt 122 travels while the crop is sandwiched between the conveyance belt 122 and the crop. Thereby, the crop clamped between both belts is conveyed backward. As shown in FIG. 8, the front end portion of the belt mechanism 420 is provided with the same configuration as the right and left rollers 141 and 142, the roller support arm 143, and the retracting belt 144 in a bilaterally symmetrical manner. When the driven belt 422 travels, the left pull-in belt 142 travels in the same manner as the right side. Accordingly, the pull-in belt 142 guides the crop to the holding position by the conveyance belt 122 and the driven belt 422 on both the left and right sides.

<Other modification 1>
Other modifications will be described. The conveyance part 500 which is a modification of the conveyance part 200 has the several conveyor rod 501 and the flame | frame 502 which supports the conveyor rod 501, as shown in FIG.9 and FIG.10. The plurality of conveyor rods 501 are connected to each other while being arranged at equal intervals along the fruit conveyance direction. The fruit conveyance direction is a direction from the front to the rear, from the right to the left, and from the lower side to the upper side. The surface facing the upper side of the plurality of conveyor rods 501 forms a conveying surface 501a on which the fruit body β separated from the stem by the fruit separating unit 150 is placed. The conveyance surface 501a extends from the fruit separation unit 150 to the container 301 along the fruit conveyance direction. In addition, while the fruit separation part 150 is extended in the front-back direction, the fruit conveyance direction inclines in both the front-back direction and the left-right direction in planar view. Therefore, the conveyance surface 501a extends to the container 301 obliquely with respect to the direction in which the fruit separating unit 150 extends.

  The frame 502 supports the conveyor rod 501 movably along the fruit conveyance direction on both sides of the length direction of the conveyor rod 501 (the direction along the conveyance surface 501a and perpendicular to the fruit conveyance direction). Yes. The transport apparatus 500 has a drive mechanism that drives these conveyor rods 501. This drive mechanism is driven by a hydraulic motor to which drive hydraulic pressure is supplied from the harvesting side drive source 30. A drive mechanism conveys the conveyor rod 501 mutually connected in the fruit conveyance direction. After the conveyor rod 501 is conveyed to the end along the fruit conveying direction, the lower part of the conveying unit 500 moves in the direction opposite to the fruit conveying direction, and returns from the front to the upper side again along the arrow C3.

  Fall prevention walls 503 and 504 are fixed to the upper surface of the frame 502. The fall prevention wall 503 protrudes upward from the upper surface of the frame 502 along a direction orthogonal to the transport surface 501a. The fall prevention wall 503 extends along the front edge of the transport surface 501a. The fall prevention wall 503 prevents the fruit body β from falling forward from the transport surface 501a. The fall prevention wall 504 protrudes upward from the upper surface of the frame 502 along a direction orthogonal to the transport surface 501a. The fall prevention wall 503 extends along the front edge of the transport surface 501a. The fall prevention wall 504 prevents the fruit body β from falling backward from the transport surface 501a.

  Guide parts 521 to 524 (guide members) for guiding the fruit body β separated from the stem by the fruit separating unit 150 to the conveying surface 501a around the area located below the fruit separating unit 150 on the conveying surface 501a. Is provided. The guide parts 521 and 522 are made of a metal plate, and the guide parts 523 and 524 are made of a sheet made of an elastic material such as rubber.

  The guide part 521 extends obliquely forward and downward from the rear end part of the fruit separating part 150. A rectangular notch 521a is formed at the upper end of the guide 521. The rear end portion of the fruit separating portion 150 passes through the cutout portion 521a from the front side to the rear side and downward. The surface of the guide portion 521 facing forward constitutes a guide surface 521b that guides the fruit body β to the transport surface 501a. The lower end portion of the guide portion 521 is fixed to the fall prevention wall 504. In plan view, the guide portion 521 is guided by an area surrounded by an edge on the rear side of the conveyance surface 501a, a first imaginary line along the traveling left-right direction, and a second imaginary line along the traveling front-rear direction. It arrange | positions in the position where the surface 521b overlaps. Such a region corresponds to a triangular region surrounded by two-dot chain lines L1 to L3 in FIG. At this time, the two-dot chain line L1 corresponds to the first imaginary line, the two-dot chain line L2 corresponds to the second imaginary line, and the two-dot chain line L3 corresponds to the rear side edge of the conveyance surface 501a. In FIG. 7, the upper surface of the conveyance belt 201 corresponds to the conveyance surface 501 a.

  The guide part 522 has an upper end part 522a and an inclined part 522b. The upper end portion 522a is on the right side of the rear end portion of the fruit separating portion 150, extends from the vicinity of the right end of the upper end portion of the guide portion 521 toward the front, and extends in the vertical direction. The inclined portion 522b extends leftward and downward from the lower end of the upper end portion 522a to a position below the fruit separating portion 150. The surface facing leftward in the inclined portion 522b constitutes a guide surface that guides the fruit body β to the transport surface 501a. The rear end portion of the inclined portion 522b (the portion indicated by the two-dot chain line 522c in FIG. 9) is, in plan view, the rear edge of the conveyance surface 501a, the first imaginary line along the traveling left-right direction, and before and after traveling. It overlaps with a region surrounded by the second virtual line along the direction (a region corresponding to a triangular region surrounded by L1 to L3 in FIG. 7).

  The guide part 523 is fixed to the upper surface of the front part of the frame 502. The right end portion of the guide portion 523 is disposed below the fruit separating portion 150. The guide part 523 is formed in a shape obtained by rounding a sheet made of an elastic material. The guide unit 524 is disposed in front of the transport unit 500 below the fruit separating unit 150. Similarly to the guide part 523, the guide part 524 is also formed in a shape obtained by rounding a sheet made of an elastic material. The guide parts 523 and 524 are arranged closer to the front than the guide parts 521 and 522. On the other hand, the fruit separation part 150 is at a higher position toward the front. Therefore, when the fruit body β falls on the guide portions 523 and 524, the fall distance is larger than when the fruit body β falls on the guide portions 521 and 522. On the other hand, the guide portions 523 and 524 are made of an elastic material. For this reason, the impact when the fruit body β contacts is easily absorbed.

  A plurality of protrusions 511 are fixed to a part of the surface of the plurality of conveyor rods 501. Each protrusion 511 protrudes obliquely upward from the conveyor rod 501 in a direction orthogonal to the transport surface 501a. The protrusions 511 are arranged at equal intervals along the length direction of the conveyor rod 501. A plurality of rows of protrusions 511 are provided at equal intervals in the fruit transport direction (see FIG. 10). These protrusions 511 prevent the fruit body β placed on the transport surface 501a from rolling in the direction opposite to the fruit transport direction.

  Above the right end of the transport surface 501a, protrusions 513 arranged at equal intervals along the length direction of the conveyor rod 501 are provided. The protruding portion 513 is fixed to the lower surface of the beam portion 514 fixed to the main body frame of the harvester, and protrudes obliquely downward from the beam portion 514 along a direction orthogonal to the transport surface 501a. The protrusions 513 are arranged so that the protrusions 511 pass through the gaps between the protrusions 513 as the conveyor rod 501 moves. Thereby, the projection part 513 comprises the prevention wall which prevents that the fruit body (beta) rolls down with the projection part 511 in the reverse direction of a fruit conveyance direction.

  Similar to the transport unit 200 in the above-described embodiment, the transport unit 500 is disposed to be inclined with respect to both the front-rear direction and the left-right direction in plan view. On the other hand, the conveyance surface 501a on which the fruit body β is placed has a rectangular planar shape. Accordingly, as shown in the triangular region surrounded by the two-dot chain lines L1 to L3 in FIG. 7, the fruit separating unit 150 and the conveying surface do not overlap with each other, and the triangular region along the edge of the conveying surface is It is always formed near the fruit separation part 150. When the fruit separating unit 150 separates the fruit body β from the stem, the fruit body β may fall into the triangular region as described above. In particular, there is a high possibility that the fruit body β falls in a triangular region formed behind the region where the fruit separating unit 150 and the conveyance surface overlap. This is because the fruit body β is transported rearward by the cut crop transporter 120, and thus inertia toward the rearward acts when falling. Therefore, by providing the guide part 521 and the guide part 522 in the triangular area as in this modification, it is possible to suppress the fruit body β from falling in the area outside the conveying surface 501a. In addition, depending on the positional relationship between the transport unit 200 or the transport unit 500 and the fruit separating unit 150, there is a problem that the fruit body β falls in a triangular region formed in front of the region where the fruit separating unit 150 and the transport surface overlap. Sometimes it becomes. In such a case, it is preferable that a guide portion such as the guide portion 521 is provided in a triangular region formed in front of a region where the fruit separating unit 150 and the conveyance surface overlap.

<Other modification 2>
Still another modification will be described. In the modified example of FIG. 8 related to the cut crop conveying unit 120, a belt mechanism 420 is employed instead of the clamping unit 125. Furthermore, as a modification thereof, the pulley 610 and the pulley 630 illustrated in FIGS. 11 and 12 may be employed instead of the pulley 130. The pulleys 610 and 630 are supported by frames 601 and 602 extending along the crop conveyance direction. The frame 601 and the plurality of pulleys 610 supported by the frame 601 are arranged on the right side of the cut crop conveyance unit, and the frame 602 and the plurality of pulleys 630 supported by the frame 602 are arranged on the left side of the cut crop conveyance unit. The pulleys 610 are arranged at equal intervals along the frame 601. The pulleys 630 are arranged along the frame 602 so as to be positioned between the pulleys 610.

  The pulley 610 includes a cylindrical pulley body 611 (pressing roller), a support shaft 611a that rotatably supports the pulley body 611, a support arm 612 having the support shaft 611a fixed to one end, and a support arm 612 that rotatably supports the pulley 610. A support column 613 (support axis) is provided. The support arm 612 is bent in a V shape at a position supported by the support column 613. In the support arm 612, one end of a coil spring 614 (elastic member) is fixed to the end opposite to the end to which the support shaft 611a is fixed. The other end of the coil spring 614 is fixed to a spring fixing portion 615 fixed to the frame 601. The coil spring 614 pulls the end of the support arm 612 by its elastic force. This elastic force causes a torque to rotate the support arm 612 about the support column 613 in the R10 direction of FIG. As a result, the pulley body 611 is pressed to the left against the conveyor belt 122 (first endless belt). The conveyor belt 122 is driven by a hydraulic motor, as in the modification of FIG.

  A regulating member 616 (regulating means) that regulates the movement of the support arm 612 is fixed slightly forward of the support arm 612 in the frame 601. The restriction member 616 protrudes upward and forward from the surface of the frame 601.

  The function of the regulating member 616 is as follows. When the transport belt 122 travels, the pulley body 611 follows the transport belt 122 and tries to move in the belt travel direction (the crop transport direction). That is, the support arm 612 tries to rotate counterclockwise in FIG. 12 around the support column 613. If the support arm 612 can move freely as far as the rotation direction, from the position where the pulley body 611 is farthest from the support column 613 in the left-right direction (position indicated by the two-dot chain line in FIG. 12). There is also a risk that the pulley body 611 moves further downstream in the crop conveyance direction. The direction from the support axis toward the first endless belt in the present invention corresponds to the left side of the present embodiment.

  Once the pulley body 611 moves further downstream in the crop conveyance direction than the position indicated by the two-dot chain line in FIG. 12, the pulley body 611 may naturally return to the original position shown in FIG. 11 depending on the elastic force of the coil spring 614. Absent. This is because the elastic force of the coil spring 614 is a force that moves the pulley body 611 downstream in the crop conveyance direction. On the other hand, in the present embodiment, the support arm 612 is configured to come into contact with the regulating member 616 before reaching the position of the two-dot chain line. The broken line in FIG. 12 shows a state where the support arm 612 is in contact with the regulating member 616. The restricting member 616 restricts the rotation of the support arm 612 so as not to rotate further than this state. Accordingly, the support arm 612 does not move further downstream in the crop conveyance direction than the position of the two-dot chain line.

  The pulley 630 includes a cylindrical pulley body 631, a support shaft 631a that rotatably supports the pulley body 631, and a support arm 632 having the support shaft 631a fixed to one end. The support arm 632 is fixed to the frame 602. The pulley body 631 is pressed against the driven belt 422 (second endless belt) forward and rightward. Note that the driven belt 422 follows the traveling of the conveyor belt 122 as in the modification of FIG.

  By the way, in the cut crop conveyance unit according to this modification, one of the two belts for crop conveyance is the driven belt 422. When transporting the crops to the two belts, the driven belt 422 is driven by the transport belt 122 by causing the transport belt 122 to travel while pressing the transport belt 122 against the driven belt 422. Therefore, in order to make the driven belt 422 follow the conveying belt 122 with certainty, the force for pressing the pulley body 611 against the conveying belt 122 must be sufficiently increased by adjusting the elastic force of the coil spring 614. For this reason, in this modification, compared with the case where both of the two belts are driven by a hydraulic motor or the like, the force for pressing the pulley against the belt is often increased. For example, as shown in FIGS. 11 and 12, there is a case in which the pressing force is increased to such an extent that the belt is pressed by each pulley and exhibits a wavy shape.

  However, when the pulley body 611 is strongly pressed against the conveyor belt 122 in this way, the frictional force that the pulley body 611 receives from the conveyor belt 122 also increases. Accordingly, when the transport belt 122 travels, the pulley body 611 is dragged by the travel of the transport belt 122, so that the support arm 612 is easily rotated in the R10 direction in FIG. Assuming that the support arm 612 can move freely as much as possible, the pulley body 611 may exceed the position indicated by the two-dot chain line as described above. In this case, in order for the pulley body 611 to exceed the position indicated by the two-dot chain line, it is necessary to move the conveyor belt 122 by pushing it away to the left as shown in FIG. Therefore, when the force with which the pulley body 611 is pressed against the conveyor belt 122 is weak, the pulley body 611 is unlikely to exceed the position of the two-dot chain line. However, in this modified example, since the force with which the pulley body 611 is pressed against the transport belt 122 is strong, the support arm 612 easily rotates in the R10 direction in FIG. For this reason, if it is assumed that the support arm 612 can freely move to any extent, in this modification, the pulley body 611 may move downstream in the crop conveyance direction from the position indicated by the two-dot chain line in FIG. Is strong.

  On the other hand, in the present modification, as described above, the restriction member 616 that restricts the movement of the support arm 612 exists. For this reason, the pulley body 611 is prevented from moving downstream in the crop conveyance direction beyond the position of the two-dot chain line. As described above, by employing the driven belt 422, it is necessary to strongly press the pulley body 611 against the conveying belt 122, and as a result, the possibility that the pulley body 611 moves beyond the position of the two-dot chain line in FIG. In the configuration of this modification, the technical significance of the regulating member 616 is particularly high.

  In this modification, the rotation of the regulating member 616 is regulated by directly contacting the support arm 612. However, a member that indirectly restricts the rotation by contacting the support arm 612 via another member may be provided. In addition, the coil spring 614 indirectly causes the pulley body 611 to act on the pulley body 611 via the support arm 616 with an elastic force that is pressed against the conveyor belt 122. However, an elastic member may be provided so that such an elastic force is directly applied to the pulley body 611.

DESCRIPTION OF SYMBOLS 1 Harvester 2 Traveling device 3 Harvester 22 Front wheel 23 Rear wheel 25 Mounting mechanism 30 Harvest side drive source 35 Fork 100 Harvesting unit 108 Cutter 120 Cutting crop conveying unit 122 Conveying belt 125 Nipping unit 130 Pulley 150 Fruit separating unit 200 Conveying unit 300 Container 301 Container

Claims (11)

A traveling device having a grounding portion that is grounded to a farm field and is rotatably driven so as to be steerable in the lateral direction of traveling while supporting the aircraft;
Harvesting unit for harvesting grown crops in the field, storage portion for storing the harvested crops by the harvesting unit, and, by the transport unit for conveying the crop along a predetermined transport path from the harvesting unit to the receiving portion A first transport unit , wherein the harvesting unit, the storage unit, and the transport unit are separably mounted on the rear part of the traveling device in a separated state separated from the ground behind the grounding unit of the traveling device. Harvesting equipment,
The harvesting unit separates a harvested portion of the crop from the field or from the bottom of the crop, a second transport unit that transports the crop separated by the crop separation unit to the first transport unit, and the first 2 a fruit separating part for separating the fruit from the harvested part of the crop that is being conveyed by the conveying part;
The fruit separating unit includes two rods extending along the conveying direction of the second conveying unit, and the two rods are rotated while sandwiching a harvested portion of the crop therebetween. Squeezing fruit from the harvested part of the crop,
The first transport unit has a transport surface that receives the fruit that has been separated from the harvested portion of the crop by the fruit separating unit and dropped, and the transport surface is viewed in plan with respect to the direction in which the two rods extend. Transporting the fruit from the fruit separating part to the accommodating part by moving diagonally at
A harvesting machine capable of harvesting a crop while the traveling device is traveling by rotating the grounding portion while the harvesting device is mounted on the traveling device in the separated state. A guide member having a guide surface that guides the fruit separated from the harvested portion of the crop by the fruit separating unit to the transport unit at a position where the fruit separating unit and the transport surface do not overlap in plan view. The harvesting machine according to claim 1 , wherein the harvesting machine is provided. In the plan view, the position where the fruit separating unit and the transport surface do not overlap is the first imaginary line along the edge of the transport surface and the traveling left and right direction and the second imaginary line along the traveling front and rear direction. The harvesting machine according to claim 2 , wherein the harvesting machine is located at a position where the area surrounded by and the guide surface overlap each other. A traveling device having a grounding portion that is grounded to a farm field and is rotatably driven so as to be steerable in the lateral direction of traveling while supporting the aircraft;
Harvesting unit for harvesting grown crops in the field, storage portion for storing the harvested crops by the harvesting unit, and, by the transport unit for conveying the crop along a predetermined transport path from the harvesting unit to the receiving portion A first transport unit , wherein the harvesting unit, the storage unit, and the transport unit are separably mounted on the rear part of the traveling device in a separated state separated from the ground behind the grounding unit of the traveling device. Harvesting equipment,
The harvesting unit includes a crop separation unit that separates a harvested portion of the crop from a field or a lower part of the crop, and a second transport unit that transports the crop separated by the crop separation unit to the first transport unit. And
The second transport unit is
When the driving roller is driven in a state where a crop is sandwiched between the first endless belt wound around the driving roller driven by the driving motor and the driven roller, and the first endless belt. A second endless belt that travels following the first endless belt, a pressing roller that contacts a surface of the first endless belt opposite to the surface on the second endless belt side, and the first endless belt. An elastic member that directly or indirectly applies an elastic force to the pressing roller to press the belt against the second endless belt, and the pressing roller is downstream of a predetermined position in the traveling direction of the first endless belt. And a restricting means for restricting the movement of the pressing roller in a state where the pressing roller is in contact with the first endless belt, and the first endless belt and the second endless bell. By moving the first endless belt to said second endless belt in a state in which the crop is sandwiched, toward the first conveying unit to convey the crop between,
A harvesting machine capable of harvesting a crop while the traveling device is traveling by rotating the grounding portion while the harvesting device is mounted on the traveling device in the separated state. A support arm that rotatably supports the pressing roller; and a support axis that rotatably supports the support arm;
The elastic force is a force for applying a torque to the support arm so as to press the pressing roller against the second endless belt with respect to the rotation center around the support axis;
When the support arm rotates in a direction such that the pressing roller follows the traveling direction of the first endless belt, the restricting means moves the pressing roller with respect to the direction from the support axis toward the first endless belt. By moving the support arm so that the pressing roller does not exceed the most distant position by directly or indirectly contacting the support arm before moving to the most distant position from the support axis. The harvester according to claim 4 , wherein the harvester is regulated. The harvesting device comprises a support attached to the rear of the traveling device;
When the support is mounted on the traveling device, the harvesting unit, the storage unit, and the transport unit are separated from the ground behind the grounding unit of the traveling device, the harvesting unit, The harvesting machine according to any one of claims 1 to 5 , wherein the harvesting unit supports the storage unit and the transport unit. The harvesting machine according to claim 6 , wherein the traveling device includes an elevating unit that elevates and lowers a mounting unit with the support in a state where the support is mounted. The container has a container separable from the support;
A container support portion that selectively takes a state of supporting and not supporting the container is provided on the support,
The container has an insertion port into which the container support portion is inserted from a predetermined direction;
When the harvesting device moves in the front-rear direction of traveling in a state where the container supporting portion is mounted on the traveling device, the container supporting portion is inserted into the insertion port along the predetermined direction. Is configured to be inserted and removed
The harvesting machine according to claim 7 , wherein the container support unit is in a state of supporting the container when inserted into the container through the insertion port and lifted with respect to the traveling device. The second transport unit is disposed in one part of the harvesting device with respect to the left-right direction orthogonal to the traveling front-rear direction of the traveling device, and extends from the traveling device to the harvesting device with respect to the traveling front-rear direction. The harvester according to any one of claims 1 to 8 . A harvesting device that is separably attached to a rear portion of a traveling device that has a grounding portion that is rotated and driven to be steerable in a traveling left and right direction while being grounded to a farm field and supporting a vehicle body,
A harvesting section for harvesting crops grown on the field;
A storage section for storing crops harvested by the harvesting section;
A first transport unit that is a transport unit that transports crops along a predetermined transport path from the harvesting unit to the storage unit;
The harvesting unit separates a harvested portion of the crop from the field or from the bottom of the crop, a second transport unit that transports the crop separated by the crop separation unit to the first transport unit, and the first 2 a fruit separating part for separating the fruit from the harvested part of the crop that is being conveyed by the conveying part;
The fruit separating unit includes two rods extending along the conveying direction of the second conveying unit, and the two rods are rotated while sandwiching a harvested portion of the crop therebetween. Squeezing fruit from the harvested part of the crop,
The first transport unit has a transport surface that receives the fruit that has been separated from the harvested portion of the crop by the fruit separating unit and dropped, and the transport surface is viewed in plan with respect to the direction in which the two rods extend. Transporting the fruit from the fruit separating part to the accommodating part by moving diagonally at
The mounting type harvesting device, wherein the harvesting unit, the storage unit, and the transport unit are mounted on a rear portion of the traveling device in a separated state separated from the ground behind the grounding unit of the traveling device. A harvesting device that is separably attached to a rear portion of a traveling device that has a grounding portion that is rotated and driven to be steerable in a traveling left and right direction while being grounded to a farm field and supporting a vehicle body,
A harvesting section for harvesting crops grown on the field;
A storage section for storing crops harvested by the harvesting section;
A first transport unit that is a transport unit that transports crops along a predetermined transport path from the harvesting unit to the storage unit;
The harvesting unit includes a crop separation unit that separates a harvested portion of the crop from a field or a lower part of the crop, and a second transport unit that transports the crop separated by the crop separation unit to the first transport unit. And
The second transport unit is
When the driving roller is driven in a state where a crop is sandwiched between the first endless belt wound around the driving roller driven by the driving motor and the driven roller, and the first endless belt. A second endless belt that travels following the first endless belt, a pressing roller that contacts a surface of the first endless belt opposite to the surface on the second endless belt side, and the first endless belt. An elastic member that directly or indirectly applies an elastic force to the pressing roller to press the belt against the second endless belt, and the pressing roller is downstream of a predetermined position in the traveling direction of the first endless belt. And a restricting means for restricting the movement of the pressing roller in a state where the pressing roller is in contact with the first endless belt, and the first endless belt and the second endless bell. By moving the first endless belt to said second endless belt in a state in which the crop is sandwiched, toward the first conveying unit to convey the crop between,
The mounting type harvesting device, wherein the harvesting unit, the storage unit, and the transport unit are mounted on a rear portion of the traveling device in a separated state separated from the ground behind the grounding unit of the traveling device.

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