Work vehicle

Abstract

To solve such a problem that, in conventional work vehicles such as carrot harvesting vehicles, the usability when utilizing convenient functions is not necessarily satisfactory.SOLUTION: A carrot harvesting vehicle 1 comprises: a carrot harvesting and conveying device 10 which is attached to one of the left and right sides of a vehicle body; a carrot conveying conveyor 20 which conveys carrots harvested and conveyed by the carrot harvesting and conveying device 10 from one side to the other of the left and right sides of the vehicle body; a main carrier 30 which is attached to the other side and on which a carrot container 100 that accommodates carrots conveyed by the carrot conveying conveyor 20 is placed; a front carrier 40 which is attached to the front side of the vehicle body and on which the carrot container 100 is placed; and a foldable front conveyance path 50 which is attached to the front carrier 40. The folded front conveyance path 50 is deployable toward the other side in the vehicle body left-right direction.SELECTED DRAWING: Figure 1

Description

[Technical Field]

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

[0002] Left and right traveling devices are provided at the bottom of the frame, and a pulling and conveying device with a rear-up tilting posture that pulls out crops from the field and conveys them to the rear of the machine is provided on one of the left and right sides of the frame, and a control unit with a control seat for an operator to sit on is provided at the front of the other left and right side of the frame, and a stem and leaf cutting device that cuts the stems and leaves of the crops is provided at the conveying end of the pulling and conveying device, and a leaf processing device is provided below the stem and leaf cutting device to receive the cut crops and convey them to the rear of the machine and process the remaining leaves of the crop, and the crop is taken over from the rear end of the leaf processing device and conveyed toward the side of the control unit. A known root vegetable harvesting machine has a first sorting and conveying conveyor oriented in the longitudinal direction of the machine body, a transfer device that receives crops from the transfer terminal end of the first sorting and conveying conveyor and transfers them to the rear of the machine body, a transfer starting end of a second sorting and conveying conveyor that passes below the first sorting conveyor and behind the control unit and transfers crops toward storage units on the other left or right side of the machine body below the transfer terminal end of the transfer device, and an auxiliary work unit that has an auxiliary work seat for an auxiliary worker located behind the second sorting and conveying conveyor and to the side of the transfer starting end of the first sorting and conveying conveyor (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2010-124757 Summary of the Invention [Problem to be solved by the invention]

[0004] Incidentally, the inventor believes that the trend of considering the various needs of users and successively implementing convenient functions into work vehicles will continue to accelerate.

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

[0006] More specifically, the inventors have noticed that the container transporting task of moving a heavy carrot container containing carrots from a front carrier to the loading platform of a truck is not necessarily easy.

[0007] SUMMARY OF THE INVENTION In consideration of the above-mentioned problems inherent in the prior art, the present invention has an object to provide a work vehicle that can improve usability. [Means for solving the problem]

[0008] The first aspect of the present invention is a crop harvesting and transporting device attached to one of the left and right sides of the vehicle body, which harvests crops and transports them toward the rear side of the vehicle body; a crop transport conveyor that transports the crops harvested and transported by the crop harvesting and transporting device from the one side to the other of the left side and the right side of the vehicle body; a main carrier attached to the other side for placing a crop container containing the crops transported by the crop transport conveyor; A front carrier attached to the front of the vehicle body on which the crop container is placed, a foldable front conveying path attached to the front carrier; It is equipped with The work vehicle is characterized in that the folded front transport path can be deployed to the other side in the left-right direction of the vehicle body.

[0009] The second present invention is a work vehicle according to the first present invention, characterized in that the front conveying path has a front conveying path base portion rotatably attached to the front carrier, a front conveying path extension portion rotatably attached to the front conveying path base portion via a front conveying path hinge portion, and a front conveying path stand portion rotatably attached to the front conveying path hinge portion.

[0010] A third aspect of the present invention is the work vehicle according to the second aspect of the present invention, further comprising a rotatable side transport path attached to the front side of the main carrier in the vehicle body longitudinal direction.

[0011] In a fourth aspect of the present invention, the one side is the left side of the vehicle body, the other side is the right side of the vehicle body, the front carrier is attached to the right side of the front carrier in the left-right direction of the vehicle body so as to be rotatable about a rotation axis in the front-rear direction of the vehicle body, the front transport path is foldable so as to be stored behind the front carrier; In a third aspect of the present invention, there is provided a work vehicle, wherein the front carrier is attached to the front side of the vehicle body so as to be rotatable about a rotation axis in the left-right direction of the vehicle body.

[0012] The fifth aspect of the present invention is the work vehicle of the fourth aspect of the present invention, characterized in that when crop harvesting work is being carried out to harvest the crops, the front carrier is horizontal and the front transport path is folded.

[0013] The sixth aspect of the present invention is the work vehicle of the fifth aspect of the present invention, characterized in that when the crop container unloading operation is performed to unload the crop container after the crop harvesting operation has been performed, the front carrier is raised and the front transport path is unfolded, and then the front carrier is rotated so that it is horizontal again together with the unfolded front transport path.

[0014] In a seventh aspect of the present invention, the side transport path is attached to a front side of the carrier so as to be rotatable about a rotation axis in the left-right direction of the vehicle body, A sixth work vehicle of the present invention is characterized in that, when the front carrier is to carry the crop container after the crop harvesting work has been completed, the hanging side transport path is rotated so that it is horizontal before the front carrier is raised, and the crop container is moved from the front carrier to the side transport path. [Effects of the Invention]

[0015] The first aspect of the present invention makes it possible to improve usability.

[0016] 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.

[0017] According to the third aspect of the present invention, in addition to the effect of the second aspect of the present invention, it is possible to reduce the burden on the worker.

[0018] According to the fourth aspect of the present invention, in addition to the effects of the third aspect of the present invention, it is possible to improve practicality.

[0019] 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 improve reliability.

[0020] According to the sixth aspect of the present invention, in addition to the effects of the fifth aspect of the present invention, it is possible to improve convenience.

[0021] 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 further improve convenience. [Brief explanation of the drawings]

[0022] [Figure 1] 1 is a schematic plan view of a carrot harvesting vehicle according to an embodiment of the present invention; [Figure 2]1 is a schematic left side view of a carrot harvesting vehicle according to an embodiment of the present invention; [Figure 3] 1 is a schematic right side view of a carrot harvesting vehicle according to an embodiment of the present invention, in the vicinity of a front conveying path; [Figure 4] FIG. 1 is a schematic front view (part 1) of the vicinity of the front conveying path of the carrot harvesting vehicle according to the embodiment of the present invention. [Figure 5] (a) A schematic plan view of the vicinity of the front conveying path of the carrot harvesting vehicle according to the embodiment of the present invention, (b) A schematic front view (part 2) of the vicinity of the front conveying path of the carrot harvesting vehicle according to the embodiment of the present invention. [Figure 6] FIG. 3 is a schematic front view (part 3) of the vicinity of the front conveying path of the carrot harvesting vehicle according to the embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0023] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described in detail with reference to the drawings.

[0024] Similarly, some components may not be shown in the drawings, or may be shown in perspective or in simplified form.

[0025] While explaining the operation of the carrot harvesting vehicle 1 according to the embodiment of the present invention, a work vehicle operation control method according to an invention related to the present invention, which is realized by a controller and the like, will also be explained.

[0026] The carrots in the embodiment of the present invention are a specific example of a crop in the present invention, and the carrot harvesting vehicle 1 is a specific example of a work vehicle in the present invention.

[0027] (1) First, the configuration and operation of a carrot harvesting vehicle 1 according to an embodiment of the present invention will be specifically described with reference to FIGS. 1 to 3.

[0028] Here, Figure 1 is a schematic plan view of a carrot harvesting vehicle 1 according to an embodiment of the present invention, Figure 2 is a schematic left side view of a carrot harvesting vehicle 1 according to an embodiment of the present invention, and Figure 3 is a schematic right side view of the carrot harvesting vehicle 1 according to an embodiment of the present invention near the front conveying path 50.

[0029] The carrot harvesting and transporting device 10 is attached to the left side of the vehicle body and harvests carrots and transports them toward the rear of the vehicle body. The carrot transporting conveyor 20 is a conveyor that transports carrots harvested and transported by the carrot harvesting and transporting device 10 from the left side to the right side of the vehicle body. The main carrier 30 is attached to the right side of the vehicle body and carries carrot containers 100 that hold the carrots transported by the carrot transporting conveyor 20.

[0030] The carrot containers 100 can be easily pushed out by providing a carrier roller such as a free roller or a so-called gentle brake roller immediately after the container conveying drive device 80 that supplies the pushing power for the carrot containers 100 placed on the main carrier 30. Although the carrot containers 100 used in the so-called double-stacked harvester container specification are often quite heavy, it is expected that the carrot containers 100 can be smoothly transported.

[0031] The carrier rollers of the main carrier 30 are provided not only on the rear side of the container conveying drive device 80 but also on the front side of the container conveying drive device 80. The container conveying drive device 80 can smoothly transport the carrot containers 100 to the front and rear sides.

[0032] The length of the carrier section of the main carrier 30 where the carrier rollers are installed is approximately the same as the length of the container box of the carrot container 100, so that unintentional movement of the carrot container 100 on the main carrier 30 is suppressed. By suppressing unintentional movement of the carrot container 100 in this way, the safety of the workers is ensured.

[0033] The carrier rollers of the main carrier 30 are arranged in two rows on both the left and right sides, but the roller arrangement is a so-called staggered arrangement, so that one of the carrier rollers on both sides always comes into contact with the bottom of the carrot container 100. Although the specifications for the bottom shape of the carrot container 100 vary, smooth container transport is expected.

[0034] The front carrier 40 is a carrier attached to the front side of the vehicle body for carrying the carrot container 100. The front conveying path 50 is a foldable conveying path attached to the front carrier 40.

[0035] A foldable front transport path 50 using a roller conveyor is provided on the front carrier 40, and although the carrot containers 100 containing carrots weigh approximately 20 kg per box, they can be easily transported onto the truck 200. The implementation of the front transport path 50 significantly reduces the manpower required for the container transport work of moving the heavy carrot containers 100 containing carrots from the front carrier 40 to the loading platform of the truck 200.

[0036] When not in use, the front conveying path 50 is folded and stored compactly behind the front carrier 40. The front conveying path 50, which can be stored in such a folded state, is unlikely to interfere with work on the main carrier 30 and has almost no effect on the driver getting in and out of the vehicle.

[0037] The front transport path 50 is folded in a dogleg shape onto the back side of the front carrier 40, which not only allows for compact storage but also contributes to ensuring a sufficient roller conveyor length.

[0038] The folded front conveying path 50 can be unfolded to the right side of the vehicle body in the left-right direction of the vehicle body.

[0039] A so-called hook bar hook, which can easily engage with the bed of the truck 200, is attached to the tip of the roller conveyor of the front conveying path 50. Not only can the tip of such a roller conveyor easily engage with the bed of the truck 200, but the typical object of engagement is a round bar attached to the side of the bed of the truck 200, and since a certain amount of movement of the truck 200 is absorbed, damage to the front conveying path 50 is unlikely to occur.

[0040] The tip of the roller conveyor of the front transport path 50, which is engaged with the bed of the truck 200, can rotate along the side of the bed of the truck 200 in the longitudinal direction of the vehicle body. For example, when the front side of the bed of the truck 200 is filled with carrot containers 100, the tip of the roller conveyor can be rotated toward the rear side of the bed of the truck 200, where there is space, so that the containers can be smoothly and continuously conveyed to the truck 200.

[0041] The hook at the tip of the roller conveyor is a hook that can expand and contract according to the shape of the side of the bed of the truck 200. When the tip of the roller conveyor is rotated as described above, the expansion and contraction of the hook ensures almost secure engagement with the bed of the truck 200.

[0042] (2) Next, the configuration and operation of the carrot harvesting vehicle 1 according to the embodiment of the present invention will be described in more detail, mainly with reference to FIGS.

[0043] Here, Figure 4 is a schematic front view (part 1) of the vicinity of the front conveying path 50 of a carrot harvesting vehicle 1 of an embodiment of the present invention, Figure 5(a) is a schematic plan view of the vicinity of the front conveying path 50 of a carrot harvesting vehicle 1 of an embodiment of the present invention, Figure 5(b) is a schematic front view (part 2) of the vicinity of the front conveying path 50 of a carrot harvesting vehicle 1 of an embodiment of the present invention, and Figure 6 is a schematic front view (part 3) of the vicinity of the front conveying path 50 of a carrot harvesting vehicle 1 of an embodiment of the present invention.

[0044] The front conveying path 50 has a front conveying path base 51 rotatably attached to the front carrier 40, a front conveying path extension 52 rotatably attached to the front conveying path base 51 via a front conveying path hinge 53, and a front conveying path stand 54 rotatably attached to the front conveying path hinge 53.

[0045] The roller conveyor of the front conveying path 50 is stably supported by attaching the front conveying path stand 54 to the foldable front conveying path hinge 53 provided in the middle of the front conveying path 50. Even if the roller conveyor of the front conveying path 50 is quite long, the attachment of the front conveying path stand 54 prevents deformation of the roller conveyor caused by the weight of the carrot containers 100 containing carrots.

[0046] The front conveyor path extension 52 bends in the vertical direction at a front conveyor path hinge 53 near a front conveyor stand 54 so that the tip of the front conveyor path extension 52, which serves as the tip of the roller conveyor, can easily engage with the bed of the truck 200, and the front conveyor path extension 52 can be adjusted according to the height of the bed of the truck 200. The flexibility of the front conveyor path hinge 53 makes such adjustment of the front conveyor path extension 52 easy, and the height of the tip of the roller conveyor can be reliably matched with the height of the bed of the truck 200.

[0047] The front conveying path stand 54 can be extended or retracted in the vertical direction so as to obtain an appropriate stand height. As described above, when the front conveying path extension 52 is adjusted in accordance with the height of the bed of the truck 200, not only is excessive bending of the front conveying path extension 52 in the middle of the conveying path unlikely to occur due to extension or retraction of the front conveying path stand 54, but the conveying inclination angle of the front conveying path extension 52 is kept gentle, so that containers can be smoothly unloaded onto the truck 200.

[0048] The side transport path 60 is a rotatable transport path attached to the front side of the main carrier 30 in the longitudinal direction of the vehicle body.

[0049] A side transport path 60 with a roller conveyor is provided on the main carrier 30 so that loaded containers can be smoothly transported out of the main carrier 30. Carrot containers 100 containing carrots can be easily transported from the main carrier 30 to the bed of the truck 200 through the side transport path 60.

[0050] The operation box 70, which is used to transport the carrot containers 100 loaded on the main carrier 30 to the front transport path 50, is located at the tip of the main carrier 30, and the operator is hardly required to move around to operate the operation box 70. This realizes a user-friendly specification that reduces the burden on the operator by enabling the operator to transport the carrot containers 100 without having to move around much.

[0051] The operation box 70 provided at the tip of the main carrier 30 is folded and stored compactly inside the main carrier 30 when there is no need to transport the carrot containers 100 to the front transport path 50. For example, when carrot digging work is being carried out at the edge of the field, the operation box 70 is unlikely to get caught on the wall at the edge of the field, so damage to the operation box is unlikely to occur.

[0052] (3) Next, the configuration and operation of the carrot harvesting vehicle 1 according to the embodiment of the present invention will be described in more detail, mainly with reference to FIGS.

[0053] The front transport path base 51 is attached to the right side of the front carrier 40 in the left-right direction of the vehicle body so as to be rotatable around a rotation axis in the fore-and-aft direction of the vehicle body. The front transport path 50 is foldable so as to be stored behind the front carrier 40. The front carrier 40 is attached to the front side of the vehicle body so as to be rotatable around a rotation axis in the left-and-right direction of the vehicle body.

[0054] That is, when carrot harvesting work is not being performed, the front carrier 40 is vertical and the front conveying path 50 is also vertical. By folding up the front carrier 40 as well as the front conveying path 50 compactly, the carrot harvesting vehicle 1 can be easily transported from the barn to the field by a transport truck.

[0055] When carrot harvesting work is being carried out, the front carrier 40 is horizontal and the front conveying path 50 is folded.

[0056] That is, when carrot harvesting work is being performed, the front carrier 40 is horizontal, but the front conveying path 50 is vertical. By placing the carrot container 100 on the front carrier 40 with the front conveying path 50 folded, carrot harvesting work can be performed efficiently with the vehicle body in a stable position.

[0057] When a carrot container lowering operation for lowering the carrot container 100 is performed after the carrot harvesting operation, the front carrier 40 is in an upright state and the front conveying path 50 is unfolded, and thereafter the front carrier 40 is rotated again to be horizontal together with the unfolded front conveying path 50.

[0058] That is, when the carrot container unloading operation of unloading the carrot container 100 is performed after the carrot harvesting operation, the front carrier 40 is temporarily raised, so that the front conveying path 50 can be deployed without interfering with the field even if the length of the front conveying path 50 is quite long.

[0059] The side conveying path 60 is attached to the front side of the carrier so as to be rotatable about a rotation axis in the left-right direction of the vehicle body. When the front carrier 40 is to carry the carrot container 100 after the carrot harvesting operation is completed, the hanging side conveying path 60 is rotated so as to be horizontal before the front carrier 40 is raised, and the carrot container 100 is moved from the front carrier 40 to the side conveying path 60.

[0060] That is, even when the front carrier 40 places the carrot container 100 on it after the carrot harvesting work has been completed, the front conveying path 50 can be smoothly unfolded by first moving the carrot container 100 from the front carrier 40 to the side conveying path 60.

[0061] 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.

[0062] In addition, the recording medium of the invention related to the present invention is a recording medium that records a program for causing a computer to execute all or some of the operations of all or some 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.

[0063] It should be noted that the above-mentioned "some steps (or processes, operations, actions, etc.)" means one or some steps among the plurality of steps.

[0064] Furthermore, the above-mentioned "operations of steps (or processes, operations, actions, etc.)" means the operations of all or part of the above-mentioned steps.

[0065] 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.

[0066] The recording medium also includes a ROM (Read Only Memory).

[0067] Furthermore, a computer is not limited to pure hardware such as a CPU (Central Processing Unit), but may also include firmware, an OS (Operating System), and even peripheral devices.

[0068] As described above, the configuration of the present invention may be realized in software or hardware. [Industrial Applicability]

[0069] 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]

[0070] 1 Carrot harvesting vehicle 10. Carrot harvesting and transport device 20 Carrot conveyor 30 Main Carrier 40 Front carrier 50 Front transport path 51 Front transport path base 52 Front transport path extension 53 Front transport path hinge 54 Front transport path stand 60 Side transport path 70 Operation box 80 Container transport drive device 100 Carrot Containers 200 tracks

Claims

1. a crop harvesting and transporting device attached to one of the left and right sides of the vehicle body, which harvests crops and transports them toward the rear side of the vehicle body; a crop transport conveyor that transports the crops harvested and transported by the crop harvesting and transporting device from the one side to the other of the left side and the right side of the vehicle body; a main carrier attached to the other side for placing a crop container containing the crops transported by the crop transport conveyor; A front carrier attached to the front of the vehicle body on which the crop container is placed, a foldable front conveying path attached to the front carrier; It is equipped with A work vehicle characterized in that the folded front transport path can be unfolded to the other side in the left-right direction of the vehicle body.

2. 2. The work vehicle according to claim 1, wherein the front transport path has a front transport path base portion rotatably attached to the front carrier, a front transport path extension portion rotatably attached to the front transport path base portion via a front transport path hinge portion, and a front transport path stand portion rotatably attached to the front transport path hinge portion.

3. 3. The work vehicle according to claim 2, further comprising a rotatable side transport path attached to the front side of the main carrier in the longitudinal direction of the vehicle body.

4. the one side is the left side of the vehicle body, the other side is the right side of the vehicle body, the front carrier is attached to the right side of the front carrier in the left-right direction of the vehicle body so as to be rotatable about a rotation axis in the front-rear direction of the vehicle body, the front transport path is foldable so as to be stored behind the front carrier; 4. The work vehicle according to claim 3, wherein the front carrier is attached to the front side of the vehicle body so as to be rotatable about a rotation axis in the left-right direction of the vehicle body.

5. 5. The work vehicle according to claim 4, wherein the front carrier is horizontal and the front transport path is folded when a crop harvesting operation is being performed to harvest the crops.

6. The work vehicle according to claim 5, characterized in that when a crop container unloading operation is performed to unload the crop container after the crop harvesting operation, the front carrier is in an upright position, the front transport path is unfolded, and then the front carrier is rotated so that it is horizontal again together with the unfolded front transport path.

7. the side conveying path is attached to the front side of the carrier so as to be rotatable about a rotation axis in the left-right direction of the vehicle body, 7. The work vehicle according to claim 6, wherein, when the front carrier is to carry the crop container after the crop harvesting operation has been performed, the suspended side transport path is rotated so as to be horizontal before the front carrier is raised, and the crop container is moved from the front carrier to the side transport path.

Images