JPH0541619Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to an improvement in a harvesting machine for underground crops (such as potatoes, onions, etc.).

PRIOR ART AND PROBLEMS A rhizome crop harvesting machine is known that can change the horizontal inclination and angle of a harvesting box mounted on a trolley.
As shown in Figure 6, this harvester is equipped with a lifting device 5' on one width side edge of a cart 1', a bracket 5'' on the other side edge on the opposite side, and a harvesting box provided on the cart 1'. The tip of the elevating member 501' is pivotally connected to the upper outer surface of the lifting member 501', and the lower outer surface opposite to this pivoting part is pivotally connected to the bracket 5'', thus providing the harvesting box 2' on the trolley 1'. was. However, harvest box 2'
has a conveyor 201' at the bottom, a harvest inlet 3' at the top, and an output conveyor 401' at the bottom with the outlet side bendable upwards on one side.
This is a structure in which a harvest discharge path 4' having a structure (hereinafter referred to as the first prior art) is provided.

When using this harvester, when transporting the harvest stored in the harvest box 2' to the loading platform of a transport vehicle such as a truck, the harvest box 2' is tilted and then the harvest transport path 4' is turned to the side. When the loading platform of the transport vehicle was brought to the exit of the harvest transport path 4' by tilting it to the side, the upper periphery of the gate plate installed around the periphery of the loading platform accidentally collided with the back side of the harvest transport path 4', and the collision occurred. I was worried that some parts would be damaged.

In addition, in order to uniformly load the harvest carried out from the exit of the harvest carrying path 4' on the central part and the entire surface of the loading platform, the harvesting box 2' is tilted to the maximum extent and the loading platform of the transport vehicle is moved closer. Alternatively, a configuration may be considered in which the harvested material is loaded by extending the harvested material output path 4' toward the tip, but in any of these configurations, the height between the loading surface and the exit of the harvested material loading path 4', that is, the drop As the distance increases, the harvested products falling from the loading port cause scratches and dents on the harvested products loaded on the loading platform, causing them to rot and reducing the commercial value of the harvested products. Furthermore, as shown in Figure 6, the loading port is placed on the periphery of the transport vehicle's loading platform so that the upper edge of the flap plate faces toward the loading platform, but this configuration also prevents scratches and dents on the crops. Moreover, in order to evenly stack the agricultural products on the loading platform, the operator had to do some work to ensure uniformity, which caused a number of problems, including extremely poor workability.

A device aimed at solving the problems of the first prior art was proposed by the applicant and is widely known. There are two such improvement ideas, one of which is a harvester that stores the harvested products by a harvesting device in a harvesting box installed on a trolley, and then transports the harvested products out of the harvesting box via a conveyance device. The harvesting box has a top surface and a part of the circumferential side open, and a transporting device is provided in the open side surface of the harvesting box so that it can be opened and closed, and the transporting device has a tip extending from the center in the longitudinal direction. This is an underground crop harvesting machine characterized by a freely swingable structure.
94325 (hereinafter referred to as the second prior art), the other one supports a harvesting box provided on a trolley via a lifting device that can move up and down, and the harvesting box provided by the lifting device is A part of the side circumferential surface is open, and a transport conveyor having a swingable tip is provided in the open side surface to transport the underground rhizome crops stored in the harvest box out of the box. This is a lifting device for a harvest box in a rhizome crop harvester, which is characterized by the following (see Japanese Utility Model Application Publication No. 58-94326, hereinafter referred to as the third prior art).

In these second and third prior art techniques, since the exit side of the harvested product transport path is swingable, if the exit is oriented downward, the falling distance from the loading platform of the transport vehicle can be shortened. It was thought that this method could solve the problems of the first prior art, such as damage to the harvested product and occurrence of knocks, because it could be adjusted, but it was found that it was not sufficient to solve these problems. . In other words, if the exit side of the harvest transport path is swung downward so that the exit faces downward, the exit side becomes steeply sloped, causing the harvest to fall rapidly onto the loading platform of the transport vehicle, causing a strong impact. It was discovered that there was an inconvenience in that while the crops could be hit, the crops collided violently, causing injuries and bruises.

The present invention was developed in view of the above circumstances, and in particular, it solves the above-mentioned disadvantages found in the second and third conventional techniques, and does not damage or bruise the harvested products. The purpose of the present invention is to provide a useful underground rhizome crop harvesting machine that can be loaded onto a transport vehicle.

Means for Solving Problems The means achieved by the present invention to achieve the above object is to provide a harvest entrance on the upper side of the harvest box disposed on the cart, and a harvest transport path that does not bend first on one side. and a lifting device is erected on the trolley at a portion of the harvest box on the side of the harvest transport road and a portion on the back side of the harvest box opposite to the portion on the side of the transport path, and a lifting device is provided at the tip of the lifting member of the lifting device. It is said that they were each attached to a harvest box. The harvest box can be lifted, lowered, tilted, etc. without shaking because the harvest box is suspended by the hanging device.

Function If the loading platform of the transport vehicle is low, either the elevating member of the elevating device on the side of the harvest export exit of the harvest box that is held at the lowest position on the cart, or the elevating member of the elevating device on the back side of the harvest box. If one side is raised, the harvest box and the harvested product delivery path can be made to have a gentle slope. If the loading platform of the transport vehicle is high and raising the elevating member of one of the elevating devices results in a steep slope for the harvest boxes and harvested product delivery path, raise the elevating members of both of the elevating devices at the same time. By raising the harvest box and the harvested product carrying-out path in a horizontal state, and then further raising one of the elevating members, the harvesting box and the harvested product carrying-out path can be tilted to a gentle slope. Therefore, by adjusting the height positions of the harvest boxes and the harvest carry-out path according to the height of the loading platform of the transport vehicle and tilting them, the harvest boxes and the harvest carry-out path can be made loose with respect to the loading platform. It is inclined to the slope.

Embodiment The trolley 1 has a traction rod (not shown) protruding from the front center of the front side in FIG.
It is configured to be driven by a tractor. The trolley 1 has a lifting device 5 erected at a portion of the harvest box 2 on the side of the harvest export port and a portion on the back side of the harvest box 2 opposite to the port. The harvesting box 2 is supported by the lifting device 5 in a manner that it projects to one side of the harvesting box 1. The harvest box 2 has its upper side and one side open, and the open upper side is used as a harvest carry-in port 3, and a harvest carry-out path 4 that does not bend first is established on the open side. The harvesting box 2 has a harvesting material transport path 4 from its bottom.
A carry-out conveyor 401 is provided across the bottom of the farm, so that the harvested products can be carried out from the carry-out path 4. The harvest box 2 is placed on the trolley 1 with the harvest transport path 4 protruding to one side of the trolley 1, and has a front side (the near side in Fig. 1) and a back side (the near side in Fig. 1) of the harvest transport path side portion. In the symmetrical part with the front side (same as above) and the back side (same as above) on the opposite side (the right side in Fig. 1),
The tips of the lifting members 501 of each pair of left and right lifting devices 5 are pivotally connected and disposed on the truck 1, respectively. If all the lifting members 501 of the left and right lifting devices 5 are raised at the same time, the harvest box 2 will rise in a horizontal state, and if either pair of lifting members 501 on either side is raised,
It is tilted with the pivot point O between the pair of elevating members 501 that is not allowed to rise (Figs. 2 and 4).
(See Figure 5, etc.) The inclination of the harvesting box 2 can be made gentle depending on the amount of elevation of one of the elevating members 501. The harvest carry-out path 4 has a carry-out conveyor 401, which serves as the bottom, protruding toward one open side of the harvest box 2, and both side walls raised on both the front and rear sides of the conveyor. Configure it so that it does not bend. The carry-out conveyor 401 of the harvest carry-out path 4 is disposed from the bottom of the harvest box 2, and is used to carry out the harvest from the carry-out port 402 of the harvest carry-out passage 4, and to load it onto a transport vehicle (not shown). The elevating device 5 has an elevating member 501 composed of a cylinder rod, and the rod is installed in a cylinder 502 formed of a hydraulic cylinder so as to be able to rise and fall freely. The lifting device 5 is a trolley 1
In the above, a symmetrical part between the front side of the harvest box (the front side in Fig. 1) and the back side of the harvest box (the opposite side in the figure) in the harvest carry-out road side part of the harvest box 2, and the above-mentioned harvest carry-out road side part. One pair each is erected at a symmetrical location between the front side of the harvesting box (same as above) and the back side of the harvesting box (same as above) on the opposite back side (the right side in FIG. 1), and the tip of the full lifting member 501 is installed. Harvest box 2
be pivotally attached to each of the above-mentioned symmetrical parts. In the lifting device 5, since the tip of the lifting member 501 is pivotally attached to the harvesting box 2 as described above, all the lifting members 5
01 at the same time, the harvest box 2 and the harvest transport path 4 can be raised and lowered in a horizontal state (as shown in the first diagram and the second diagram), and the harvest box 2 and the harvest transport path 1
If either one of the pair of elevating members 501 or the pair of elevating members 501 on the back side opposite to the carry-out path is raised or lowered, the one pair of elevating members 501 that cannot be raised or lowered and the harvesting box 2 The harvesting box 2 is tilted using the pivot point as a fulcrum O (as shown in the fourth and fifth figures).

In the figure, reference numeral 6 denotes a lifting device that suspends the harvesting box 2 together with the lifting device 5 on the side of the harvest transport path for the harvesting box 2.
An elevating rod 602 is fitted into a cylinder 601 that is arranged on the trolley 1 in close proximity to the rear elevating device 5 (the elevating device on the right side in FIG. 1) of the harvest box 2, and is fitted in the cylinder 601 so as to be able to rise and fall freely. The tip of the elevating member 501 of the rear side elevating device 5 is pivotally attached to the protruding end of the protruding piece 603 that is provided to protrude laterally near the upper end, and the elevating rod 602 has a portion higher than the protruding piece 603. When the lower end of a substantially inverted L-shaped support fitting 604 in a front view which is protruded from the harvesting box 2 is pivotally attached to the upper end, and when the elevating member 501 of the back elevating device 5 is raised and lowered, the elevating rod 602 is simultaneously raised and lowered. The harvesting box 2 is suspended so that the harvesting box 2 is raised horizontally or tilted. The hanging device 6 is located close to the lifting device 5 on the back side of the harvesting box 2, and is symmetrical between the front side (the near side in FIG. 1) and the back side (the opposite side in FIG. 1) of the harvesting box 2. One pair is provided at each site to smoothly raise, lower, and tilt the harvest box 2 while preventing the harvest box 2 from shaking.

Effects of the invention Since the present invention is configured as described above, if the height positions of the harvest box and the harvested product delivery path are adjusted according to the height of the loading platform of the transport vehicle and they are tilted, the loading platform can be It becomes possible to incline the slope to a gentle slope. Therefore, it is possible to load the harvested products quietly with less risk of damaging the crops and less fear of knocking. In addition, even if the harvest receiving side is a bag, box, container, etc. other than a transport vehicle,
Since the height positions of the harvest box and the harvest conveyance path can be adjusted and inclined in accordance with the receiving side, the harvest can be received without worrying about damaging the harvest. Since the harvesting box is smoothly raised, lowered, and tilted by the lifting device without shaking, the work of carrying out the harvest in the harvesting box can be carried out smoothly.

[Brief explanation of the drawing]

Figure 1 is a front view showing the harvesting box and harvested material carrying path of the harvester of the present invention, Figure 2 is a front view of the harvesting box and harvested material carrying out path raised horizontally, and Figure 3 is a hoisting device for the harvesting box. Figure 4 is an enlarged side view of the machine, Figure 4 is a front view showing an example of how it is used when transporting crops with the harvest carrying road side lowered, and Figure 5 is a front view showing an example of the usage state when carrying out the harvest with the harvest carrying road side raised. FIG. 6 is a front view of the first prior art. In the figure, 1... Trolley, 2... Harvest box, 3... Harvest carrying inlet, 4... Harvesting carrying out path, 5... Lifting device, 6... Hanging device.

Claims (1)

[Scope of utility model registration request] A harvest carry-in port is provided on the upper side of the harvest box placed on the trolley, and a harvest carry-out path is opened on one side without bending first, and a harvest carry-out road side portion of the harvest box and the harvest carry-out road side are opened on the trolley. Lifting devices are installed at the rear portion of the harvesting box on the opposite side of the harvesting box, and the tips of the lifting and lowering members of the lifting devices are pivotally connected to the harvesting box, and the rear portion of the harvesting box is raised and lowered on the trolley. A lifting rod is fitted into a cylinder arranged in parallel to the device, and the tip of the lifting member of the lifting device of the back side of the harvest box is pivotally connected to the tip of a protrusion that projects laterally from the upper end of the lifting rod, and A rhizome crop harvesting machine, wherein a lower end of a support fitting protruding from a rear part of the harvesting box is pivoted to a part higher than a protrusion of the lifting rod to constitute a harvesting box hoisting device.