Work vehicle

Abstract

To solve the problem that regarding a work vehicle such as a conventional carrot harvesting vehicle, man power and labor required by stacking crop containers housing crops are often not small.SOLUTION: In a carrot harvesting vehicle, a second carrot container 82 is set to a shooter outside unit 52, carrots transported by a lifting conveyor device 30 are housed in a first carrot container 81, and then, a shooter inside unit 51 is rotated so that the second carrot container 82 set to the shooter outside unit 52 does not slide. The set second carrot container 82 is automatically or manually slid to an upper surface of the first carrot container 81 from the shooter outside unit 52.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present invention relates to work vehicles, such as carrot harvesting vehicles. [Background technology]

[0002] A vegetable harvester has a harvesting and transporting device on one side of a vehicle body equipped with running crawlers that pulls out vegetables at the front and transports them to the rear, and the vegetables harvested by the harvesting and transporting device are sorted using a harvested vegetable processing device and packed into containers that are then loaded in multiple rows on a carrier attached to the other side of the vehicle body.Work vehicles similar to this vegetable harvester are known in which an auxiliary loading platform is attached to the side of the carrier so that it can be raised and lowered (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2018-164427 A Summary of the Invention [Problem to be solved by the invention]

[0004] Incidentally, the present inventor believes that the trend of implementing convenient functions one after another in work vehicles such as carrot harvesting vehicles will continue to accelerate, taking into consideration the various needs of work vehicle users.

[0005] However, the present inventors have noticed that conventional work vehicles are not necessarily easy to use when using convenient functions.

[0006] More specifically, the inventors have realized that for work vehicles such as conventional carrot harvesting vehicles, the manpower and effort required to stack crop containers to house the crop is often not small.

[0007] SUMMARY OF THE PRESENT DISCLOSURE In consideration of the above-mentioned problems with the conventional technology, an object of the present invention is to provide a work vehicle that can improve usability. [Means for solving the problem]

[0008] The first aspect of the present invention is a lifting conveyor device that transports crops harvested by a crop harvesting device in a left-right direction of a vehicle body; a crop container placement platform device provided below a conveyor outlet of the lifting conveyor device for placing a first crop container that contains the crop transported by the lifting conveyor device; a crop container shooter device attached to an outer side of the crop container loading platform device in the left-right direction of the vehicle body, in which a second crop container for accommodating the crops transported by the lifting conveyor device is set; Equipped with The crop container shooter apparatus has a shooter inner unit and a shooter outer unit; An inner portion of the shooter inner unit in the left-right direction of the vehicle body is rotatably attached to the outer portion of the crop container loading platform device, an inner portion of the chute outer unit in the left-right direction of the vehicle body is rotatably attached to an outer portion of the chute inner unit in the left-right direction of the vehicle body, the second crop container is placed into the shooter outer unit; This work vehicle is characterized in that after the crop transported by the lifting conveyor device is placed into the first crop container, the shooter inner unit is rotated so that the set second crop container does not slide into the shooter outer unit, and the set second crop container is automatically or manually slid from the shooter outer unit onto the top surface of the first crop container.

[0009] The second aspect of the present invention is a crop container shooter device, further comprising a base support unit and a side support unit, An inner portion of the base support unit in the left-right direction of the vehicle body is fixed to the outer portion of the crop container loading platform device, An inner portion of the side support unit in the vehicle body left-right direction is rotatably attached to an outer portion of the base support unit in the vehicle body left-right direction, an outer portion of the side support unit in the left-right direction of the vehicle body is rotatably attached to an outer portion of the chute outer unit in the left-right direction of the vehicle body, This is a first work vehicle of the present invention, characterized in that when the crop transported by the lifting conveyor device is placed into the first crop container, the shooter inner unit and the shooter outer unit are aligned in a plane, and after the crop is placed into the first crop container, the shooter inner unit is raised while the shooter outer unit is maintained so that the set second crop container does not slide into the shooter outer unit, and the set second crop container is automatically or manually slid from the shooter outer unit onto the top surface of the first crop container.

[0010] The third aspect of the present invention is the crop container shooter device further comprising a base support unit and a side support unit, An inner portion of the base support unit in the left-right direction of the vehicle body is rotatably supported on the outer portion of the crop container loading platform device, An inner portion of the side support unit in the vehicle body left-right direction is rotatably attached to an outer portion of the base support unit in the vehicle body left-right direction, The first aspect of the present invention is a work vehicle, wherein an outer portion of the lateral support unit in the left-right direction of the vehicle body is rotatably attached to an outer portion of the chute outer unit in the left-right direction of the vehicle body.

[0011] The fourth aspect of the present invention is a method for manufacturing a chute for a vehicle having a chute inner unit, a chute outer unit, a base support unit and a side support unit, each of which is a rectangular plate member; a parallel link mechanism is constituted by the chute inner unit, the chute outer unit, the base support unit and the side support unit; the chute inner unit and the side support unit are opposed to each other, A second aspect of the present invention is a work vehicle, wherein the chute outer unit and the base support unit face each other.

[0012] The fifth aspect of the present invention is an L-shaped locking member for locking the slide of the second crop container set on the shooter outer unit by utilizing the biasing force of a spring, the L-shaped locking member being rotatably attached to a position near the inside of the shooter outer unit, The rotation axis of the L-shaped locking member is provided on a vertical portion of the L-shaped locking member, The tip of the lateral portion of the L-shaped locking member faces inward, When the tip of the horizontal portion is not in contact with another member, the vertical portion stands up and supports the set second crop container according to the biasing force of the spring, thereby maintaining the locked state of the set second crop container; A fourth work vehicle of the present invention is characterized in that when the tip of the horizontal portion abuts against the other member, the vertical portion rotates against the biasing force of the spring, thereby achieving an unlocked state of the set second crop container.

[0013] The sixth aspect of the present invention is that when the unlocked state of the second crop container set on the shooter outer unit is achieved, the second crop container set is slid from the shooter outer unit onto an upper surface of the first crop container, A second crop container slide guide for suppressing the positional deviation of the slid second crop container in the front-rear direction of the vehicle body is provided on the upper surface of the shooter outer unit, The fifth work vehicle of the present invention is characterized in that a second crop container slide stopper for preventing the slid second crop container from shifting in the left-right direction of the vehicle body is provided at the upper end of the first crop container.

[0014] The seventh aspect of the present invention is a main carrier that transports the first crop container and the second crop container placed on the crop container loading platform device in a front-rear direction of the vehicle body; a ladder carrier connected to a front end of the main carrier for transporting the first crop container and the second crop container transported by the main carrier in the front-rear direction of the vehicle body; It also has A sixth work vehicle of the present invention is characterized in that the rear end of the ladder carrier is rotatably connected to the front end of the main carrier so that the height of the front end of the ladder carrier is adjustable.

[0015] The eighth aspect of the present invention is a ladder carrier, wherein the rear end portion of the ladder carrier is located forward of the driver's seat, The ladder carrier is extendable and retractable; The front end of the ladder carrier in the shortest state is located forward of the rear end of a front carrier provided in front of the driver's seat, The seventh aspect of the present invention is a work vehicle, wherein the length of the ladder carrier in the shortest state is an integer multiple of the width of the first crop container in the fore-and-aft direction of the vehicle body. Effect of the Invention

[0016] According to the first aspect of the present invention, it is possible to improve usability.

[0017] According to the second aspect of the present invention, in addition to the effect of the first aspect of the present invention, it is possible to simplify the configuration.

[0018] According to the third aspect of the present invention, in addition to the effect of the first aspect of the present invention, it is possible to simplify the configuration.

[0019] According to the fourth aspect of the present invention, in addition to the effect of the second aspect of the present invention, it is possible to further simplify the configuration.

[0020] According to the fifth aspect of the present invention, in addition to the effect of the fourth aspect of the present invention, it is possible to reduce the burden on the worker.

[0021] According to the sixth aspect of the present invention, in addition to the effect of the fifth aspect of the present invention, it is possible to further reduce the burden on the worker.

[0022] According to the seventh aspect of the present invention, in addition to the effect of the sixth aspect of the present invention, it is possible to improve convenience.

[0023] According to the eighth aspect of the present invention, in addition to the effects of the seventh aspect of the present invention, it is possible to further improve convenience. [Brief description of the drawings]

[0024] [Figure 1] FIG. 1A is a plan view of a carrot harvesting vehicle according to an embodiment of the present invention; FIG. 1B is a right side view of a carrot harvesting vehicle according to an embodiment of the present invention; and FIG. 1C is a plan view of a ladder carrier 92 and its surroundings of the carrot harvesting vehicle according to an embodiment of the present invention. [Diagram 2] FIG. 1 is a rear view of a carrot harvesting vehicle according to an embodiment of the present invention; [Diagram 3] FIG. 2 is a rear view of a carrot harvesting vehicle according to an embodiment of the present invention. [Figure 4] FIG. 3 is a rear view of a carrot harvesting vehicle according to an embodiment of the present invention. [Diagram 5] FIG. 4 is a rear view of a carrot harvesting vehicle according to an embodiment of the present invention. [Figure 6] FIG. 1 is a perspective view (part 1) of the vicinity of a carrot container loading platform device and a carrot container shooter device of a carrot harvesting vehicle according to an embodiment of the present invention. [Figure 7]FIG. 2 is a perspective view of the vicinity of the carrot container loading platform device and the carrot container shooter device of the carrot harvesting vehicle according to the embodiment of the present invention (part 2) [Figure 8] FIG. 3 is a perspective view of the vicinity of the carrot container loading platform device and the carrot container shooter device of the carrot harvesting vehicle according to the embodiment of the present invention (part 3). [Figure 9] FIG. 4 is a perspective view of the vicinity of the carrot container loading platform device and the carrot container shooter device of the carrot harvesting vehicle according to the embodiment of the present invention. [Figure 10] FIG. 1 is a schematic rear view of the vicinity of a carrot container mounting platform device and a carrot container shooter device of a carrot harvesting vehicle according to a first modified example of an embodiment of the present invention. [Figure 11] (a) A schematic rear view (part 1) of the vicinity of the carrot container loading platform device and the carrot container shooter device of the carrot harvesting vehicle according to the second modified embodiment of the present invention, (b) A schematic rear view (part 2) of the vicinity of the carrot container loading platform device and the carrot container shooter device of the carrot harvesting vehicle according to the second modified embodiment of the present invention, (c) A schematic rear view (part 3) of the vicinity of the carrot container loading platform device and the carrot container shooter device of the carrot harvesting vehicle according to the second modified embodiment of the present invention [Figure 12] (a) A schematic rear view (part 1) of the vicinity of the carrot container loading platform device and the carrot container shooter device of the carrot harvesting vehicle according to the third modified example of the embodiment of the present invention, (b) A schematic rear view (part 2) of the vicinity of the carrot container loading platform device and the carrot container shooter device of the carrot harvesting vehicle according to the third modified example of the embodiment of the present invention. [Figure 13] FIG. 1(a) is a schematic rear view (part 1) of the vicinity of a carrot container loading platform device and a carrot container shooter device of a carrot harvesting vehicle according to a fourth modified example of an embodiment of the present invention; FIG. 1(b) is a schematic rear view (part 2) of the vicinity of a carrot container loading platform device and a carrot container shooter device of a carrot harvesting vehicle according to a fourth modified example of an embodiment of the present invention; [Figure 14]FIG. 1( a ) is a schematic rear view (part 1) of the vicinity of a carrot container loading platform device and a carrot container shooter device of a carrot harvesting vehicle according to a fifth modified example of an embodiment of the present invention; FIG. 1( b ) is a schematic rear view (part 2) of the vicinity of a carrot container loading platform device and a carrot container shooter device of a carrot harvesting vehicle according to a fifth modified example of an embodiment of the present invention; [Figure 15] FIG. 13 is a schematic perspective view of the vicinity of a carrot container mounting platform device and a carrot container shooter device of a carrot harvesting vehicle according to a sixth modified example of an embodiment of the present invention. [Figure 16] FIG. 1 is an explanatory diagram of a carrot harvesting vehicle according to an embodiment of the present invention; [Figure 17] (a) An explanatory diagram (part 1) of a carrot harvesting vehicle according to an embodiment of the second invention related to the present invention, (b) an explanatory diagram (part 2) of a carrot harvesting vehicle according to an embodiment of the second invention related to the present invention, (c) an explanatory diagram (part 3) of a carrot harvesting vehicle according to an embodiment of the second invention related to the present invention, (d) an explanatory diagram (part 4) of a carrot harvesting vehicle according to an embodiment of the second invention related to the present invention. [Figure 18] (a) An explanatory diagram (part 5) of a carrot harvesting vehicle according to an embodiment of a second invention related to the present invention, (b) An explanatory diagram (part 6) of a carrot harvesting vehicle according to an embodiment of the second invention related to the present invention. [Figure 19] (a) An explanatory diagram (part 7) of a carrot harvesting vehicle according to an embodiment of the second invention related to the present invention, (b) an explanatory diagram (part 8) of a carrot harvesting vehicle according to an embodiment of the second invention related to the present invention, (c) an explanatory diagram (part 9) of a carrot harvesting vehicle according to an embodiment of the second invention related to the present invention, (d) an explanatory diagram (part 10) of a carrot harvesting vehicle according to an embodiment of the second invention related to the present invention. [Figure 20] (a) An explanatory diagram (part 11) of a carrot harvesting vehicle according to an embodiment of the second invention related to the present invention, (b) an explanatory diagram (part 12) of a carrot harvesting vehicle according to an embodiment of the second invention related to the present invention, (c) an explanatory diagram (part 13) of a carrot harvesting vehicle according to an embodiment of the second invention related to the present invention DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0025] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS With reference to the drawings, an embodiment of the present invention will be described in detail.

[0026] The same applies below, but some components may not be shown in the drawings, or may be shown in a perspective or simplified manner.

[0027] While explaining the operation of the carrot harvesting vehicle of this embodiment, we will also explain a work vehicle operation control method of an invention related to the present invention, which is realized by a controller, etc.

[0028] The carrot harvesting vehicle of the present embodiment is a specific example of the work vehicle of the present invention. The carrot of the present embodiment is a specific example of the crop of the present invention.

[0029] (1) First, mainly with reference to FIGS. 1(a) to 1(c), the configuration and operation of a carrot harvesting vehicle according to an embodiment of the present invention will be specifically described.

[0030] Here, Figure 1(a) is a plan view of a carrot harvesting vehicle in an embodiment of the present invention, Figure 1(b) is a right side view of a carrot harvesting vehicle in an embodiment of the present invention, and Figure 1(c) is a plan view of the area near ladder carrier 92 of a carrot harvesting vehicle in an embodiment of the present invention.

[0031] The lifting conveyor device 30 is a device that transports the carrots harvested by the carrot harvesting device 20 in the left-right direction of the vehicle body.

[0032] By raising and lowering the lifting conveyor device 30, also called a sorting conveyor, as necessary, it is possible to realize two-tiered stacking of so-called mini-containers.

[0033] The lifting and lowering operation of the lifting conveyor device 30 is realized without a power source by utilizing a so-called free-lock type gas damper, and the lifting operation is performed by releasing the free lock, and the lowering operation is performed by pushing down the conveyor frame, etc.

[0034] By lifting the lifting conveyor device 30 upward to the maximum extent, the conveyor exit is stored compactly in an empty space on the inside in the left-right direction of the vehicle body, so that the lifting conveyor device 30 is less likely to be damaged due to collision with an obstacle such as a wall when the vehicle is moved or stored in a shed.

[0035] The carrot container platform device 40 is a device provided below the conveyor outlet of the elevating conveyor device 30 for mounting thereon the first ginseng container 81 containing the carrots transported by the elevating conveyor device 30.

[0036] The raising and lowering operation of the carrot container loading platform device 40 is not necessarily required. However, as will be described later, a configuration in which the raising and lowering operation of the carrot container loading platform device 40 is performed in order to slide the second carrot container 82 by tilting the shooter outer unit 52 of the carrot container shooter device 50 downward toward the inside in the left-right direction of the vehicle body.

[0037] It is desirable that a gas damper or the like for enabling the raising and lowering operation of the carrot container placement table device 40 be compactly arranged in the empty space below the raising and lowering conveyor device 30.

[0038] The carrot container shooter device 50 is a device attached to the outer side in the left-right direction of the carrot container loading platform device 40, on which second carrot containers 82 for accommodating carrots transported by the lifting conveyor device 30 are set.

[0039] By utilizing the lifting and lowering motion of the carrot container shooter device 50, also called the empty container carrier, the containers can be easily stacked two-tiered, with the first ginseng container 81 and the second ginseng container 82, by allocating the containers to the upper and lower tiers of the carrot container loading platform device 40.

[0040] The main carrier 91 is a carrier that transports the first ginseng container 81 and the second ginseng container 82 placed on the ginseng container loading platform device 40 in the longitudinal direction of the vehicle body. The ladder carrier 92 is a carrier connected to the front end of the main carrier 91 and transports the first ginseng container 81 and the second ginseng container 82 transported by the main carrier 91 in the longitudinal direction of the vehicle body. The rear end of the ladder carrier 92 is rotatably connected to the front end of the main carrier 91 so that the height of the front end of the ladder carrier 92 is adjustable.

[0041] The first ginseng container 81 and the second ginseng container 82 for storing ginseng can be transported by manual sliding sideways via a roller carrier 201 provided behind the main carrier 91 to a rear carrier 203 provided behind the assistant operator's seat 202, which is the seat behind the driver's seat 10.

[0042] Since the space above the main carrier 91 and the roller carrier 201 is open and free of obstacles, it is easy to transport the containers to the rear corner of the vehicle even though the first ginseng container 81 and the second ginseng container 82 are stacked two levels high.

[0043] The rear end of the ladder carrier 92 is located forward of the operator's seat 10. The ladder carrier 92 is extendable and retractable.

[0044] The contracted ladder carrier 92 is simply an extension carrier of the main carrier 91, but the extended ladder carrier 92 functions as a free roller conveyor, also known as a colocon, to transport containers by bridging them to the truck bed.

[0045] To ensure that containers are transported without getting caught, the telescopic link mechanism of the ladder carrier 92 is positioned so as not to protrude from the upper surface of the free roller portion.

[0046] The direction of extension and retraction of the telescopic link mechanism of the ladder carrier 92 is parallel to the roller transport surface, and the telescopic link mechanism of the ladder carrier 92 does not protrude from the upper surface of the free roller portion nor from the lower surface of the free roller portion.

[0047] Hook members for engaging with the truck bed as the ladder carrier 92 is attached to the front end thereof, and the strength of the ladder carrier 92 is guaranteed by such engagement, enabling container transport by bridging the ladder carrier 92 to the truck bed as described above.

[0048] In the shortest position, the front end of the ladder carrier 92 is located forward of the rear end of a front carrier 93 provided in front of the operator's seat 10.

[0049] Since the ladder carrier 92 is present to the side of the front carrier 93 even when contracted, it is easy for the operator to get in and out of the operator seat 10 via the front carrier 93 and the ladder carrier 92.

[0050] Since the space above the main carrier 91 and the ladder carrier 92 is open and free of obstacles, it is easy to transport the containers to the front corner of the vehicle even though the first ginseng container 81 and the second ginseng container 82 are stacked two levels high.

[0051] Since the free roller portion of the ladder carrier 92 described above is separated from the traffic path for getting on to the operator's seat 10, safety for the operator is improved.

[0052] The length of the ladder carrier 92 in the shortest state is an integer multiple of the width of the first carrot container 81 in the front-rear direction of the vehicle body.

[0053] It is also possible for the length of the ladder carrier 92 to be slightly shorter than an integer multiple of the width of the first carrot container 81 in the fore-and-aft direction of the vehicle body, but this makes it easy for the driver to avoid the container when getting into the driver's seat 10, thereby improving convenience for the driver.

[0054] It is also possible that the carrot container loading platform device 40 is lowered to the height of the upper surface of the main carrier 91, and the first and second carrot containers 81 and 82 containing carrots are forcibly sent from the carrot container loading platform device 40 to the main carrier 91 by driving the conveying rollers as the carrot container loading platform device 40 comes into contact with the main carrier 91.

[0055] In order to prevent such a lack of conveying power from occurring in driving the conveying rollers, it is desirable to make the conveying rollers protrude upward so that the bottom of the first carrot container 81, which is open and not supported from below by the frame of the carrot container loading platform device 40, is abutted by the conveying roller push-up.

[0056] (1A) Carrot container shooter device 50 has a shooter inner unit 51 and a shooter outer unit 52.

[0057] A more specific explanation will be given mainly with reference to Figures 2 to 5 which are rear views (parts 1 to 4) of the carrot harvesting vehicle of an embodiment of the present invention, and Figures 6 to 9 which are oblique views (parts 1 to 4) of the area near the carrot container loading platform device 40 and the carrot container shooter device 50 of the carrot harvesting vehicle of an embodiment of the present invention, as follows.

[0058] An inner part of the chute inner unit 51 in the left-right direction of the vehicle body is rotatably attached to an outer part of the carrot container mounting table device 40. An inner part of the chute outer unit 52 in the left-right direction of the vehicle body is rotatably attached to an outer part of the chute inner unit 51 in the left-right direction of the vehicle body.

[0059] Since the rotation shaft of the chute outer unit is provided at a location near the outside of the chute inner unit, the first carrot container 81 and the second carrot container 82 are less likely to get caught when they are transported in the fore-and-aft direction of the vehicle body.

[0060] The second ginseng container 82 is set in the shooter outer unit 52. After the ginseng transported by the lifting conveyor device 30 is stored in the first ginseng container 81, the shooter inner unit 51 is rotated so that the second ginseng container 82 set in the shooter outer unit 52 does not slide, and the set second ginseng container 82 is automatically or manually slid from the shooter outer unit 52 to the upper surface of the first ginseng container 81.

[0061] The first ginseng container 81 onto which the second ginseng container 82 is slid must provide a reference for stacking the containers in two layers. Therefore, it is desirable to place the container in the correct position on the ginseng container loading table device 40 by using markings that clearly indicate the container loading position.

[0062] The carrot container shooter device 50 further includes a base support unit 53 and a side support unit 54. An inner part of the base support unit 53 in the left-right direction of the vehicle body is supported rotatably on an outer part of the carrot container placing table device 40.

[0063] Since the carrot container platform device 40 is folded and the base support unit 53 is rotated for compact storage, the carrot container shooter device 50 is less likely to be damaged due to collision with an obstacle such as a wall when it is moved or stored in a shed.

[0064] An inner portion of the side support unit 54 in the left-right direction of the vehicle body is rotatably attached to an outer portion of the base support unit 53 in the left-right direction of the vehicle body. An outer portion of the side support unit 54 in the left-right direction of the vehicle body is rotatably attached to an outer portion of the chute outer unit 52 in the left-right direction of the vehicle body.

[0065] The chute inner unit 51, the chute outer unit 52, the base support unit 53 and the side support unit 54 are rectangular plate members.

[0066] An embodiment in which the chute inner unit 51, the chute outer unit 52, the base support unit 53 and the side support unit 54 are rectangular frame members is also contemplated.

[0067] The parallel link mechanism is composed of the chute inner unit 51, the chute outer unit 52, the base support unit 53 and the side support unit 54. The chute inner unit 51 and the side support unit 54 face each other. The chute outer unit 52 and the base support unit 53 face each other.

[0068] When the carrot container shooter device 50 is raised and lowered, the use of such a parallel link mechanism or the like can suppress large changes in the posture of the carrot container shooter device 50 relative to the carrot container loading platform device 40.

[0069] That is, the carrot-container loading platform device 40 is raised by extending the cylinder of the loading platform cylinder mechanism 101 so that the carrots are securely placed in the first carrot container 81 (see Figs. 2 and 6). The second carrot container 82 set in the carrot container shooter device 50, also called a folding guide, is locked to prevent it from slipping off by a stopper function such as an L-shaped locking member 60 described later. The second carrot container 82 may be set as an empty container before the work, or may be set by an assistant worker seated at the assistant worker's seat 202 during the work.

[0070] Next, while the carrots are being loaded one after another into the first carrot container 81, the carrot container loading platform device 40, which had been raised by extending the cylinder of the loading platform cylinder mechanism 101, is lowered, taking advantage of the weight of the carrots loaded into the first carrot container 81, etc. (see Figures 3 and 7).

[0071] Then, the carrot container shooter device 50 is lifted by the motor drive of the shooter motor mechanism 103 so that the entire carrot container shooter device 50 is rotated, and the parallel link deformation of the carrot container shooter device 50 is performed by the cylinder extension of the shooter cylinder mechanism 102 so that the carrot container shooter device 50 can slide smoothly with a sufficient inclination (see Figs. 4 and 8). The second carrot container 82, which has been locked to prevent it from sliding down by the above-mentioned stopper function, is slid down by its own weight to the upper surface of the first carrot container 81 as the stopper is released. At this time, the lifting conveyor device 30 is lifted as necessary so as not to interfere with the second carrot container 82, etc.

[0072] Furthermore, after the second ginseng container 82 is slid onto the upper surface of the first ginseng container 81, the lifting conveyor device 30 is raised as necessary so that the ginseng are securely accommodated in the second ginseng container 82 (see Figs. 5 and 9). The return operation of the ginseng container shooter device 50 is performed, and the setting standby of the next second ginseng container 82 is completed.

[0073] (1B) The inner part of the base support unit 53 in the left-right direction of the vehicle body may be fixed to the outer part of the carrot container mounting table device 40.

[0074] Since a mechanism for rotatably supporting the inner part of the base support unit 53 using the shooter motor mechanism 103 or the like is not required, the configuration is simplified.

[0075] A more specific explanation will be given mainly with reference to Figure 10, which is a schematic rear view of the area near the carrot container loading platform device 40 and the carrot container shooter device 50 of a carrot harvesting vehicle according to a first modified embodiment of the present invention, and Figures 11(a) to 11(c), which are schematic rear views (parts 1 to 3) of the area near the carrot container loading platform device 40 and the carrot container shooter device 50 of a carrot harvesting vehicle according to a second modified embodiment of the present invention, as follows.

[0076] That is, it is possible for the outer chute unit 52 to be inclined downward toward the inside in the left-right direction of the vehicle body (see FIG. 10), but the outer chute unit 52 is aligned in plan with the inner chute unit 51 (see FIGS. 11(a) to 11(c)).

[0077] When the carrots transported by the lifting conveyor device 30 are placed into the first ginseng container 81, the shooter inner unit 51 and the shooter outer unit 52 are aligned in a plane, and after the carrots are placed into the first ginseng container 81, the shooter inner unit 51 is raised while the shooter outer unit 52 is maintained so that the second ginseng container 82 set into the shooter outer unit 52 does not slide, and the set second ginseng container 82 is automatically or manually slid from the shooter outer unit 52 to the top surface of the first ginseng container 81.

[0078] That is, when the carrots transported by the lifting conveyor device 30 are stored in the first carrot container 81, the shooter inner unit 51 and the shooter outer unit 52 are aligned in a plane (see FIG. 11(a)). The parallel link mechanism is almost collapsed, and the shooter outer unit 52 is supported in a horizontal state so as to be parallel to the base support unit 53 at a lowered position slightly above the base support unit 53.

[0079] Next, after the carrots are contained in the first carrot container 81, the shooter outer unit 52 is maintained so that the second carrot container 82 set in the shooter outer unit 52 does not slide, while the shooter inner unit 51 is raised (see FIG. 11(b)). The parallel link mechanism is raised by the cylinder contraction of the shooter cylinder mechanism 102, and the shooter outer unit 52 is supported in a horizontal state so as to be parallel to the base support unit 53 at a raised position considerably above the base support unit 53. Therefore, the second carrot container 82 set in the shooter outer unit 52 is almost never unintentionally slipped off, and a stopper function such as an L-shaped lock member 60 described later is not necessarily required.

[0080] Then, the set second ginseng container 82 is automatically or manually slid from the chute outer unit 52 onto the upper surface of the first ginseng container 81 (see FIG. 11(c)). For example, the carrot-container platform device 40 is raised by extending the cylinder of the platform cylinder mechanism 101, and the second ginseng container 82 is automatically slid by tilting the chute outer unit 52 downward toward the inside in the left-right direction of the vehicle body.

[0081] (1C) In addition, an L-shaped locking member 60 for locking the sliding of the second carrot container 82 set in the shooter outer unit 52 by utilizing the biasing force of a spring 63 may be rotatably attached to a position toward the inside of the shooter outer unit 52.

[0082] Even if the shooter outer unit 52 is inclined downward toward the inside in the left-right direction of the vehicle body so that the second carrot container 82 set in the shooter outer unit 52 can easily slide down from the shooter outer unit 52 to the upper surface of the first carrot container 81 under its own weight, the set second carrot container 82 is prevented from unintentionally sliding down.

[0083] A more specific explanation will be given mainly with reference to Figures 12(a) and 12(b), which are schematic rear views (parts 1 and 2) of the vicinity of the carrot container loading platform device 40 and the carrot container shooter device 50 of a carrot harvesting vehicle according to a third modified embodiment of the present invention, Figures 13(a) and 13(b), which are schematic rear views (parts 1 and 2) of the vicinity of the carrot container loading platform device 40 and the carrot container shooter device 50 of a carrot harvesting vehicle according to a fourth modified embodiment of the present invention, and Figures 14(a) and 14(b), which are schematic rear views (parts 1 and 2) of the vicinity of the carrot container loading platform device 40 and the carrot container shooter device 50 of a carrot harvesting vehicle according to a fifth modified embodiment of the present invention, as follows.

[0084] The rotation shaft 64 of the L-shaped locking member 60 is provided on the vertical portion 61 of the L-shaped locking member 60. The tip of the horizontal portion 62 of the L-shaped locking member 60 faces inward. When the tip of the horizontal portion 62 is not in contact with another member, the vertical portion 61 stands up and supports the set second ginseng container 82 according to the biasing force of the spring 63, thereby maintaining the locked state of the set second ginseng container 82.

[0085] That is, the second ginseng container 82 set in the chute outer unit 52 is held down by the outer wall of the first ginseng container 81 below, so there is almost no chance of it accidentally slipping down and entering the empty space on the upper side, but the L-shaped locking member 60 can reliably lock the sliding of the second ginseng container 82 by the biasing force of a spring 63 such as a torque spring attached to the rotating shaft 64 (see FIG. 12(a)). Since a rotation stopper for the L-shaped locking member 60, not shown in the drawing, is provided, there is almost no chance of the second ginseng container 82 slipping down due to excessive rotation of the L-shaped locking member 60 caused by the sufficiently large biasing force of the spring 63.

[0086] When the tip of the horizontal portion 62 abuts against another member, the vertical portion 61 rotates against the biasing force of the spring 63, thereby achieving an unlocked state of the set second carrot container 82.

[0087] That is, the tip of the horizontal portion 62 abuts against the shooter inner unit 51 or the like, which is an existing solid member as such other member, and the vertical portion 61 rotates against the urging force of the spring 63 (see FIG. 12(b)). Of course, a mode in which the tip of the horizontal portion 62 passes through the shooter inner unit 51 and abuts against the first ginseng container 81 or the like, and the vertical portion 61 rotates against the urging force of the spring 63, is also conceivable (see FIGS. 13(a) and 13(b)). And, a mode in which the horizontal portion 62 is separated from the vertical portion 61 and attached to the shooter inner unit 51 or the like, the L-shaped locking member 60 is substantially an I-shaped locking member, and the tip of the vertical portion 61 abuts against the horizontal portion 62 is also conceivable (see FIGS. 14(a) and 14(b)).

[0088] (1D) Also, when the unlocked state of the second ginseng container 82 set in the shooter outer unit 52 is achieved, the set second ginseng container 82 may be slid from the shooter outer unit 52 onto the upper surface of the first ginseng container 81.

[0089] Since the set second ginseng container 82 is slid down from the shooter outer unit 52 to the top surface of the first ginseng container 81 by its own weight, no thrust is required from an actuator or the like to slide the second ginseng container 82.

[0090] In order to allow the second carrot container 82 to slide down under its own weight, a certain degree of inclination of the shooter main surface is formed in the shooter outer unit 52, but it is desirable to insert a gas damper or the like that elastically supports the shooter outer unit 52 from below so that the sliding speed of the second carrot container 82 does not become excessively large.

[0091] The sixth modified embodiment of the carrot harvesting vehicle according to the present invention will be explained in more detail below, mainly with reference to Figure 15, which is a schematic oblique view of the vicinity of the carrot container loading platform device 40 and the carrot container shooter device 50.

[0092] A second carrot container slide guide 71 for preventing the second carrot container 82 from shifting in position in the fore-and-aft direction of the vehicle body when slid is provided on the upper surface of the chute outer unit 52.

[0093] The second ginseng container slide guide 71 is formed of a pair of guide plates protruding from the upper surface of the chute outer unit 52, and since the distance between the lower guide plates is smaller than the distance between the upper guide plates, even if the second ginseng container 82 slides down due to its own weight, it is accurately guided toward the position of the first ginseng container 81 without significant positional deviation in the fore-and-aft direction of the vehicle body.

[0094] A second carrot container slide stopper 72 for preventing the second carrot container 82 from shifting in position in the left-right direction of the vehicle body when slid is provided at the upper end of the first carrot container 81.

[0095] The second ginseng container slide stopper 72 is formed of a stopper plate protruding from the upper end of the first ginseng container 81, and since the sliding speed of the second ginseng container 82 is sufficiently large, even if the second ginseng container 82 slides down due to its own weight, it can be stopped accurately at the position of the first ginseng container 81 without significant positional deviation in the left-right direction of the vehicle body.

[0096] (2) Next, the configuration and operation of a carrot harvesting vehicle according to an embodiment of the invention related to the present invention will be specifically described.

[0097] (2A) First, mainly with reference to FIG. 16, a configuration and operation of a carrot harvesting vehicle according to an embodiment of a first invention related to the present invention will be specifically described.

[0098] FIG. 16 is an explanatory diagram of a carrot harvesting vehicle according to an embodiment of the first invention related to the present invention.

[0099] Rather than the lifting and lowering action of the lifting conveyor device 30, the lifting and lowering action of the base of the ginseng container loading platform device 40, also called the ginseng container dump device, is utilized for stacking the first ginseng container 81 and the second ginseng container 82 in two layers.

[0100] The first ginseng container 81 is placed on the elevated ginseng container loading platform device 40. After the ginseng transported by the lifting conveyor device 30 are stored in the first ginseng container 81, the ginseng container loading platform device 40 is lowered by releasing the free lock of the gas damper, etc., and the second ginseng container 82 set in the ginseng container shooter device 50, also called the empty container shooter, is slid down under its own weight onto the upper surface of the first ginseng container 81, thereby again loading an empty container into the empty space on the upper side of the first ginseng container 81 on the lower side.

[0101] The carrot container shooter device 50 is configured separately from the carrot container placement table device 40 which performs the lifting and lowering operation, and this type of empty container loading can be realized by utilizing the empty space on the upper side.

[0102] The carrot container shooter device 50 is rotatably attached to a shooter device support arm that is erected on a main carrier 91, also called a transport carrier, and by rotating separately from the carrot container loading platform device 40, the second carrot container 82 can be slid down onto the upper surface of the first carrot container 81 under its own weight.

[0103] When the raised and lowered carrot container loading platform device 40 is lowered by releasing the free lock of the gas damper as described above, the lock is released in the carrot container shooter device 50, and the set second carrot container 82 slides down to the top surface of the first carrot container 81 under its own weight.

[0104] When the carrot container loading platform device 40 descends from the upper position to the lower position, the second carrot container 82 set on the carrot container shooter device 50 is held down by the outer wall of the first carrot container 81 below, so that it almost never unintentionally slips down and enters the empty space on the upper side. However, an embodiment in which a claw-shaped locking member or the like is provided to prevent the second carrot container 82 from slipping down is also conceivable.

[0105] When the first ginseng container 81 and the second ginseng container 82 containing carrots are sent from the carrot container loading platform device 40 to the main carrier 91, for example, the carrot container loading platform device 40 may automatically jump up from the lower position to the upper position, and an abutment member or the like provided on the outside of the carrot container loading platform device 40 may release the above-mentioned claw-shaped locking member, so that the second ginseng container 82 set in the carrot container shooter device 50 may slide down under its own weight and be loaded onto the carrot container loading platform device 40.

[0106] The raising and lowering movement of the base of the ginseng container loading platform device 40 is performed using a parallel link mechanism or a slide rail mechanism having slide rails arranged in the vertical direction, and the first ginseng container 81 and the second ginseng container 82 are stacked in two layers without any significant positional deviation in the left-right direction of the vehicle body.

[0107] (2B) Next, the configuration and operation of a carrot harvesting vehicle according to an embodiment of a second invention related to the present invention will be specifically described.

[0108] First, with reference mainly to Figures 17(a) to 17(d), we will explain the technology for facilitating stacking and transportation of a mini-container-type carrot harvester.

[0109] Here, Figures 17(a) to 17(d) are explanatory views (parts 1 to 4) of a carrot harvesting vehicle according to an embodiment of a second invention related to the present invention.

[0110] One possible configuration is that slider 512, along which the carrots roll as they fall, is provided near the outer end of the body of elevating conveyor device 30. This can reduce the impact that the carrots receive when they are placed into container 513, making the carrots less likely to crack.

[0111] In the above-described embodiment, a configuration is considered in which the rear side of the slider 512 is lower than the front side of the slider 512. A helper performing sorting work using the foot-side waste container 518 can easily check the inside of the container 513.

[0112] In the embodiment described above, a configuration is conceivable in which an operator can grasp slider rotation grip 517 and manually rotate slider 512 around a starting point near elevating conveyor device 30. When container 513 placed on the lower level is filled with carrots, the operator rotates slider 512 upward and places a new container 513 on top of container 513 on the lower level as the upper container, thereby realizing double-stacked containers.

[0113] In the above-described embodiment, a configuration in which the rotational position of the slider 512 is provided in two stages is considered.

[0114] In the above-mentioned embodiment, a configuration is conceivable in which the main carrier 91 can be rotated in a horizontal plane by utilizing a carrier rotation mechanism constituted by the U-shaped plate 514 and the carrier rotation fulcrum 515. Even if the truck 531 is somewhat distant from the vehicle body, the container 513 can be pulled close to the truck 531 and the container 513 can be easily loaded onto the truck 531.

[0115] In the embodiment described above, the carrier rotation fulcrum 515 is provided as a right-side starting point for the assistant worker performing the sorting work, and a configuration is conceivable in which the main carrier 91 is rotated at a rotation angle of 180 degrees.

[0116] In the above-mentioned embodiment, a configuration is conceivable in which the carrier drive switch 532 as an operation switch for the conveyor belt 525 is provided at the tip of the main carrier 91. Since the container sending operation of the main carrier 91 can be realized from the side close to the truck, a container 513 located far away can be easily transported to the truck 531.

[0117] In the embodiment described above, it is contemplated that the carrier drive switch 532 is a toggle switch that can be manually switched on and off.

[0118] In the embodiment described above, a configuration is possible in which the operation of the conveyor belt 525 is continued while the carrier drive switch 532 is on.

[0119] In the above-mentioned embodiment, a configuration may be considered in which whether or not the main carrier 91 is rotating around the carrier rotation fulcrum 515 is detected by the carrier detector 516. For example, even if the assistant worker is not fully aware of the rotation of the main carrier 91, it is possible to suppress the occurrence of malfunctions due to inappropriate operation.

[0120] In the embodiment described above, a configuration in which the carrier detector 516 is disposed below the lift conveyor device 30 is contemplated.

[0121] In the above-described embodiment, when the main carrier 91 is rotated and the carrier detector 516 is in the OFF state, the operation of the lifting conveyor device 30 may be inhibited.

[0122] Next, mainly with reference to Figures 18(a) and 18(b), a technology for facilitating stacking of a mini-container-type carrot harvester will be described.

[0123] Here, Figures 18(a) and 18(b) are explanatory diagrams (Nos. 5 and 6) of a carrot harvesting vehicle according to an embodiment of a second invention related to the present invention.

[0124] In the above-described embodiment, a configuration in which the main carrier 91 is rotated backward at a rotation angle of 180 degrees by using the carrier rotation mechanism is possible. This makes it easy to load the container 513 onto the truck 531.

[0125] In the above-described embodiment, a configuration in which the container detector 533 is provided on the front side of the main carrier 91 is possible.

[0126] In the above-described embodiment, a configuration in which a carrier front side lifting mechanism 534 for raising and lowering the container 513 is provided on the front side of the main carrier 91 is conceivable.

[0127] In the above-described embodiment, the carrier front side lifting mechanism 534 may be a pantograph mechanism for movement in the up and down direction.

[0128] In the above-described embodiment, a configuration in which a carrier drive switch 532 functioning as an automatic transport mode switch or the like is provided on the front side of the main carrier 91 is considered.

[0129] In the above-described embodiment, a configuration is conceivable in which the automatic transport mode is selected by pressing the carrier drive switch 532, and the carrier front side lifting mechanism 534 is caused to lift.

[0130] In the above-described embodiment, when the container 513 of the carrier front side lifting mechanism 534 is loaded onto the truck 531, the carrier front side lifting mechanism 534 is lowered, and then a new container 513 is sent toward the carrier front side lifting mechanism 534, and the carrier front side lifting mechanism 534 is raised again.

[0131] Next, the stacking facilitation technology for the mini-container carrot harvester will be further described with primary reference to Figures 19(a) to 19(d) and 20(a) to 20(c).

[0132] Here, Figures 19(a) to 19(d) and 20(a) to 20(c) are explanatory diagrams (numbers seven to thirteen) of a carrot harvesting vehicle according to an embodiment of the second invention related to the present invention.

[0133] In the above-described embodiment, a configuration may be considered in which the rotation position of the slider 512 provided below the conveyor outlet of the lifting conveyor device 30 is provided in two stages, an upper position and a lower position.

[0134] In the above-mentioned embodiment, the upper and lower positions of the slider 512 are detected by a slider detector 521 that contacts a slider detection plate 522 provided at the end of the slider 512, and while the slider 512 is rotating, the transport drive circuit of the elevating conveyor device 30 and the like are cut off, and the conveyor of the elevating conveyor device 30 stops. This can prevent carrots from spilling out when the container 513 is replaced.

[0135] In the above-described embodiment, the slider 512 may be configured to rotate automatically. Automatic transport and automatic exchange of the container 513 can be performed simply by operating a switch.

[0136] In the embodiment described above, the slider 512 may be configured to rotate in the vertical direction by rotation of a motor-driven cam 523 disposed below the slider 512.

[0137] In the above-described embodiment, a configuration in which an empty container placement unit 511 is provided by utilizing the space behind the main carrier 91 or the carrier transport path of the lifting conveyor device 30 may be considered.

[0138] In the embodiment described above, the empty container placement unit 511 on which the empty containers 513 are placed has a two-tier configuration, and it is possible for one container 513 to be placed on each of the upper and lower tiers.

[0139] In the embodiment described above, a configuration in which a rotating container placement stand 527 is utilized on the upper level of the empty container placement unit 511 is contemplated.

[0140] In the above-described embodiment, a configuration in which the container detection plate 524 is provided at a middle position in the short direction of the conveyor belt 525 of the main carrier 91 is conceivable.

[0141] In the embodiment described above, a configuration in which the container detection plate 524 is disposed below the slider 512 is considered.

[0142] In the above-described embodiment, when the container detection plate 524 is in the off state, a configuration is considered in which, when the container automatic feed switch 526 is pressed, the container 513 placed on the lower level is transported to a position below the slider 512.

[0143] In the above-described embodiment, when the container detection plate 524 is in the on state, when the container automatic feed switch 526 is pressed, the slider 512 rotates upward, the rotating container stand 527 rotates downward so as to be inclined, and the container 513 on the rotating container stand 527 is slid down under its own weight onto the upper surface of the container 513 placed on the lower level.

[0144] In the above-described embodiment, when the slider 512 is rotated upward, if the automatic container feed switch 526 is pressed, the two-tiered containers 513 are sent forward by the operation of the main carrier 91, and the slider 512 rotates downward, so that a new container 513 is transported to a position below the slider 512.

[0145] In addition, the program of the invention related to the present invention is a program for causing a computer to execute all or part of the steps (or processes, operations and actions, etc.) of the work vehicle operation control method of the invention related to the present invention described above, and is a program that operates in cooperation with a computer.

[0146] In addition, the recording medium of the invention related to the present invention is a recording medium having recorded thereon a program for causing a computer to execute all or part of the operations of all or part of the steps (or processes, operations and actions, etc.) of the work vehicle operation control method of the invention related to the present invention described above, and is a computer-readable recording medium in which the read program is used in cooperation with a computer.

[0147] In addition, the above-mentioned "some steps (or processes, operations, actions, etc.)" means one or some steps among the multiple steps.

[0148] In addition, the above-mentioned "operation of a step (or process, operation, action, etc.)" means the operation of all or a part of the above-mentioned steps.

[0149] Furthermore, one mode of use of the inventive program related to the present invention may be in the form of being transmitted through a transmission medium such as the Internet, light, radio waves, or sound waves, being read by a computer, and operating in cooperation with the computer.

[0150] Furthermore, the recording medium includes a ROM (Read Only Memory) and the like.

[0151] Furthermore, a computer is not limited to pure hardware such as a CPU (Central Processing Unit), and may also include firmware, an OS (Operating System), and even peripheral devices.

[0152] As described above, the configuration of the present invention may be realized in software or in hardware. [Industrial Applicability]

[0153] The work vehicle of the present invention can improve usability and is useful for use as a work vehicle such as a carrot harvesting vehicle. [Explanation of symbols]

[0154] 10. Operator seat 20 Carrot harvesting device 30 Lifting conveyor device 40 Carrot container placement device 50 Carrot Container Shooter Device 51 Shooter Inner Unit 52 Shooter outer unit 53 Base Support Unit 54 Lateral support unit 60 L-shaped locking member 61 Vertical section 62 Side 63 Spring 64 Rotating Axis 71 Second container slide guide 72 Second Carrot Container Slide Stopper 81 First Carrot Container 82 Second Carrot Container 91 Main Carrier 92 Ladder Carrier 93 Front carrier 101 Mounting table cylinder mechanism 102 Shooter cylinder mechanism 103 Shooter motor mechanism 201 Roller Carrier 202 Assistant operator's seat 203 Rear carrier 511 Empty Container Storage Unit 512 Slider 513 Container 514 U-shaped plate 515 Carrier pivot point 516 Carrier Detector 517 Slider Rotating Grip 518 Foot trash container 521 Slider Detector 522 Slider detection plate 523 Motor Driven Cam 524 Container Detection Plate 525 Conveyor Belt 526 Container automatic feed switch 527 Rotating Container Stand 531 Tracks 532 Carrier drive switch 533 Container Detector 534 Carrier front side lifting mechanism

Claims

1. a lifting conveyor device that transports the crops harvested by the crop harvesting device in a left-right direction of the vehicle body; a crop container placement platform device provided below a conveyor outlet of the lifting conveyor device for placing a first crop container that contains the crop transported by the lifting conveyor device; a crop container shooter device attached to an outer side of the crop container loading platform device in the left-right direction of the vehicle body, in which a second crop container for accommodating the crops transported by the lifting conveyor device is set; Equipped with The crop container shooter apparatus has a shooter inner unit and a shooter outer unit; An inner portion of the shooter inner unit in the left-right direction of the vehicle body is rotatably attached to the outer portion of the crop container loading platform device, an inner portion of the chute outer unit in the left-right direction of the vehicle body is rotatably attached to an outer portion of the chute inner unit in the left-right direction of the vehicle body, the second crop container is placed into the shooter outer unit; A work vehicle characterized in that after the crop transported by the lifting conveyor device is placed into the first crop container, the shooter inner unit is rotated so that the set second crop container does not slide into the shooter outer unit, and the set second crop container is automatically or manually slid from the shooter outer unit onto the top surface of the first crop container.

2. The crop container shooter apparatus further comprises a base support unit and a side support unit; An inner portion of the base support unit in the left-right direction of the vehicle body is fixed to the outer portion of the crop container loading platform device, An inner portion of the side support unit in the vehicle body left-right direction is rotatably attached to an outer portion of the base support unit in the vehicle body left-right direction, an outer portion of the side support unit in the left-right direction of the vehicle body is rotatably attached to an outer portion of the chute outer unit in the left-right direction of the vehicle body, The work vehicle described in claim 1, characterized in that when the crop transported by the lifting conveyor device is placed into the first crop container, the shooter inner unit and the shooter outer unit are aligned in a plane, and after the crop is placed into the first crop container, the shooter inner unit is raised while the shooter outer unit is maintained so that the set second crop container does not slide into the shooter outer unit, and the set second crop container is automatically or manually slid from the shooter outer unit onto an upper surface of the first crop container.

3. The crop container shooter apparatus further comprises a base support unit and a side support unit; An inner portion of the base support unit in the left-right direction of the vehicle body is rotatably supported on the outer portion of the crop container loading platform device, An inner portion of the side support unit in the vehicle body left-right direction is rotatably attached to an outer portion of the base support unit in the vehicle body left-right direction, 2. The work vehicle according to claim 1, wherein an outer portion of the side support unit in the left-right direction of the vehicle body is rotatably attached to an outer portion of the chute outer unit in the left-right direction of the vehicle body.

4. the chute inner unit, the chute outer unit, the base support unit and the side support unit are rectangular plate members; a parallel link mechanism is constituted by the chute inner unit, the chute outer unit, the base support unit and the side support unit; The chute inner unit and the side support unit face each other, The work vehicle according to claim 2 , wherein the chute outer unit and the base support unit face each other.

5. An L-shaped locking member for locking the slide of the second crop container set on the shooter outer unit by utilizing the biasing force of a spring is rotatably attached to a portion near the inside of the shooter outer unit, The rotation axis of the L-shaped locking member is provided on a vertical portion of the L-shaped locking member, The tip of the lateral portion of the L-shaped locking member faces inward, When the tip of the horizontal portion is not in contact with another member, the vertical portion stands up and supports the set second crop container according to the biasing force of the spring, thereby maintaining the locked state of the set second crop container; The work vehicle according to claim 4, characterized in that when the tip of the horizontal portion abuts against the other member, the vertical portion rotates against the biasing force of the spring, thereby achieving an unlocked state of the set second crop container.

6. when the unlocked state of the second crop container is achieved, the second crop container is slid from the shooter outer unit onto an upper surface of the first crop container; A second crop container slide guide for suppressing the positional deviation of the slid second crop container in the front-rear direction of the vehicle body is provided on the upper surface of the shooter outer unit, The work vehicle described in claim 5, characterized in that a second crop container slide stopper for preventing the second crop container from shifting in the left-right direction of the vehicle body when slid is provided at the upper end of the first crop container.

7. a main carrier that transports the first crop container and the second crop container placed on the crop container loading platform device in a front-rear direction of the vehicle body; a ladder carrier connected to a front end of the main carrier for transporting the first crop container and the second crop container transported by the main carrier in the front-rear direction of the vehicle body; It also has The work vehicle according to claim 6, characterized in that the rear end of the ladder carrier is rotatably connected to the front end of the main carrier so that the height of the front end of the ladder carrier is adjustable.

8. The rear end of the ladder carrier is located forward of the operator's seat, The ladder carrier is extendable and retractable; The front end of the ladder carrier in the shortest state is located forward of the rear end of a front carrier provided in front of the driver's seat, 8. The work vehicle according to claim 7, wherein the length of the ladder carrier in the shortest state is an integer multiple of the width of the first crop container in the fore-and-aft direction of the vehicle body.

Images