JP4212135B2 - Forage Wagon - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a forage wagon that transports forage harvested by a harvester such as a corn harvester.
[0002]
[Prior art]
Conventional forage wagons are usually configured as shown in the side sectional view of FIG.
[0003]
This forage wagon A is a box formed in a box shape on the upper surface side of a body frame 1 formed in a towed carriage shape having a traction rod 10 on the front end side and running wheels 11 on the rear end side. 2 is mounted, and the floor of the cargo box 2 is equipped with a floor conveyor 3 to be transported rearward, and an elevator apparatus 4 that is inclined obliquely upward is installed on the rear end side of the cargo box. When a forage crop such as corn is harvested by a harvester such as a corn harvester, it is pulled by a tractor that is towed simultaneously or accompanied by the harvester, and is harvested by a harvester. The forage that is the harvested or released crop is received and loaded into the packing box 2 of this forage wagon A, and when it is full, it is transported to the storage place, where the rear end of the packing box 2 Install on the side Used to perform unloading crop by operation of the elevator 4.
[0004]
[Problems to be solved by the invention]
However, in such a conventional forage wagon A, harvesting work is carried out while blowing into the packing box 2 of the forage wagon A accompanied by harvested products harvested by a harvester. When the container is full, it is transported to the storage location, where the forage loaded by the operation of the floor conveyor 3 mounted on the floor surface of the cargo box 2 is conveyed rearward, Although it is structured to be carried out and discharged by the elevator device 4 installed on the side, the forage blown from the harvester to the packing box 2 during the harvesting work has a low loading density in the blown state. In the middle of the work, the harvesting work by the harvester is interrupted, the forage wagon is stopped, the worker gets into the packing box 2, and blows and loads into the packing box 2. An inefficient work in which an operator steps on and compresses, creates a loading space, starts work again, and blows forage into the resulting loading space to increase loading density and increase transport volume There was a problem that had to be done.
[0005]
The present invention has been tried by paying attention to such a conventional problem, and the forage that has been harvested and blown into the packing box is moved from the front of the packing box to the rear without interrupting the harvesting operation. The present invention aims to provide a new means for solving the above-mentioned problems by enabling timely compression and increasing the loading density.
[0006]
[Means for Solving the Problems]
In the present invention, as means for achieving the above-mentioned object, a packing box base 23 formed in a frame shape is provided on the upper surface side of the vehicle body frame 1 that runs on its own or by being towed . By means of a hydraulic cylinder device S for dumping that can be bridged between the front and rear intermediate portions of the base 23 and the front and rear intermediate portions of the vehicle body frame 1, the rotation fulcrum 22 provided at the rear end side of the vehicle body frame 1 A dump box is installed so as to rotate backward with respect to the vehicle body frame 1 , a box-shaped packing box 2 is mounted on the upper surface side of the packing box base 23 , and the packing box 2 is mounted on the front end side of the packing box 2. and So設compression movable wall 5 to move freely in the longitudinal direction along between the side walls 21, 21 of the right and left of the box 2 to the floor plate 20 the upper surface of the packing box 2, between its compressed movable wall 5 and Nibako base 23 , cathodic reciprocating mechanism w moving the compression movable wall 5 back and forth by the hydraulic drive And tied, the dump rotation of packing box 2, performed by reciprocating mechanism w to move the compression movable wall 5 and the movable Dokabe 5 moving in the cargo box 2 back and forth, in a state where the packing boxes 2 dumped rotated The forage wagon is characterized in that grass can be discharged by the operation of the reciprocating mechanism w .
[0007]
DETAILED DESCRIPTION OF THE INVENTION
The forage wagon according to the present invention is mounted on a wagon by mounting a cargo box formed in a box shape opened upward on the upper surface side of a bogie-like body frame that travels by being towed or travels by itself. It is the same as the conventional forage wagon that the forage that is configured and received and loaded into the inside of the box is shredded from the harvester is loaded. On the front end side, there is provided a compression movable wall that can be reciprocated in the front-rear direction in the packing box, and this compression movable wall is driven by a hydraulic device to reciprocate the compression movable wall back and forth. Link the moving mechanism.
[0008]
The floor surface of the packing box is not provided with the floor conveyor provided in the conventional means, and the above-mentioned compression movable wall moves by a predetermined distance toward the rear along the upper surface of the floor board in the packing box. The forage received and loaded in the packing box is compressed while being moved and accumulated toward the rear part in the packing box.
[0009]
In addition, on the rear end side of the packing box, the forage discharge elevator provided in the conventional means is not provided, and the forage is accumulated by the operation in which the compression movable wall moves backward by the reciprocating mechanism. A door is provided to compress it in conjunction with the operation.
[0010]
This door is provided with an open / close door that opens and closes the rear end side of the packing box, but it is linked to a locking mechanism that holds it in the closed position so that the rear side of the packing box can be used for harvesting operations. Is kept closed.
[0011]
When the forage, which is the harvest, is full in the packing box and the harvested product is discharged from the packing box, the lock mechanism is released, the door is opened, and the compression movable wall is moved backward. So that the crop is discharged.
[0012]
At this time, the hydraulically driven reciprocating mechanism for moving the compression movable wall backward not only compresses the harvest in the packing box to form a loading space, but also the harvest in the packing box. In order to obtain a discharge stroke for discharging backward from the opening on the rear surface of the cargo box, it is configured in a multistage cylinder or the base end side of the reciprocating mechanism is provided on the body frame so as to be movable back and forth. A support frame may be supported, and the support frame may be pushed out to the rear of the cargo box by a hydraulically driven reciprocating mechanism provided separately for discharge.
[0013]
Further, the compression movable wall provided on the front end side of the packing box so as to move back and forth in the packing box is on the outer surface side with respect to the inside of the packing box so that the reciprocating movement thereof can be performed smoothly. On the front side, an upper frame and a lower frame are provided so as to protrude toward the front of the compression movable wall, and are formed in a frame shape in a side view, and the left and right ends of the upper frame are It is effective to slidably contact a guide member provided in the front-rear direction on the inner surfaces of the left and right side walls of the packing box so that the lower frame is slidably contacted to the upper surface of the floor plate of the packing box.
[0014]
Then, on the upper surface of the upper frame thereof, when the compression movable wall enters the packing box, the crops that are continuously discharged from the harvester into the packing box and put in are loaded on the front surface of the compression moving wall. In order to prevent the air from flowing into the side, a top plate protruding in a shelf shape from the upper edge of the compression movable wall to the front along the upper surface of the upper frame is provided. The front part of the opening of the opening above the compression movable wall is sequentially shielded, and the compression movable wall that has performed the compression operation is located at the front end part of the opening of the opening above the packing box. It is effective to provide a scraper for scraping the harvested material accumulated on the top plate into the packing box when the operation of returning to step S is performed.
[0015]
Further, the packing box may be configured such that the entire packing box dumps backward with respect to the machine body frame in order to facilitate the discharge operation of the collected and loaded harvested products. In this case, a lock mechanism for holding the door, which can be opened and closed, at the rear end side of the cargo box is provided in a closed state, or the lock mechanism is operated to be released using the operation of the dump box rotating. The linkage mechanism can be linked and controlled.
[0016]
In addition, the left and right side walls and floorboard of the packing box are compressed by using a resin plate with a low frictional resistance, or a resin coating material, at least the part that contacts the compression movable wall that moves back and forth in the seedling box. The movement of the movable wall may be smooth.
[0017]
Further, in order to prevent the compression movable wall from being lifted during the operation of compressing the harvested product in the packing box, it protrudes to the lower part on the rear surface side of the compression movable wall while descending backward. In some cases, the inclined plate and the sliding plate that is in sliding contact with the upper surface of the floor plate of the packing box are installed in a triangular shape in a side view.
[0018]
【Example】
Next, the present invention will be described with reference to the drawings.
2 to 10 show an embodiment of the present invention.
[0019]
This embodiment is an example formed in a towed forage wagon A that travels while being connected to a towing vehicle such as a tractor, wherein FIG. 2 is a plan view, and FIG. 3 is a side view. 1 is a body frame of the forage wagon A, 2 is a cargo box mounted on the upper surface side of the body frame 1, 5 is a compression movable wall movably provided forward and backward on the front end side of the cargo box 2, and 6 is a cargo box 2, a door w openably and closably provided at the opening on the rear end side, w denotes a hydraulically driven reciprocating mechanism for reciprocating the movable movable wall 5 back and forth.
[0020]
The vehicle body frame 1 is formed in a cart shape equipped with a traction rod 10 on the front end side and a traveling wheel 11 on the rear end side.
[0021]
The cargo box 2 mounted on the upper surface side of the vehicle body frame 1 is formed in a channel shape with the floor plate 20 and the left and right side walls 21 and 21 open at the front and rear ends and at the front end side. Further, a compression movable wall 5 that slides on the floor plate 20 and moves back and forth between the left and right side walls 21 and 21 is provided, and a support provided at the upper part of the rear end side of the left and right side walls 21 and 21 is provided on the rear end side. By providing a door 6 that opens and rotates rearward and upward at the center of the shaft 60, the door 6 is formed in a box shape that opens upward, and the cargo box 2 rotates on the upper surface side of the body frame 1. It is supported on a part of the upper surface of the packing box base 23 that is mounted to rotate around the fulcrum 22 and is slightly rearward. The compression movable wall 5 is placed on the front end side of the upper surface of the packing box base 23. Among the reciprocating mechanisms w that move the back and forth, a reciprocating mechanism w1 for compression is assembled, and The side are assembled reciprocating mechanism w2 for discharge.
[0022]
The compression movable wall 5 is provided with a horizontal upper frame 5a and a lower frame 5b projecting forward on the upper and lower portions on the front side which is the outer surface side with respect to the inner cavity of the packing box 2, and these upper portions The frame 5a and the lower frame 5b are assembled in a frame shape in a side view with a support frame 5c extending between the frames 5a and 5b.
[0023]
a and a are arranged so as to correspond to the upper surfaces of the left and right ends of the upper frame 5a, and are parallel to the moving direction of the compression movable wall 5 on the inner surfaces of the left and right side walls 21 and 21 of the packing box 2. When the compression movable wall 5 is moved, the guide member provided in the front-rear direction is slidably brought into contact with the upper surface of the upper frame 5a so as to guide its movement smoothly.
[0024]
4, b1... Are guide rollers installed on the upper surface sides of the left and right sides of the upper frame 5a so as to rotate in contact with the lower surfaces of the guide members a and a, and b2. Guide rollers b3... Installed on both the left and right side surfaces of 5a so as to abut against the inner surfaces of the left and right side walls 21 and 21 of the packing box 2 are provided on the left and right side surfaces of the lower frame 5b. It is a guide roller installed so as to rotate in contact with the inner surfaces of the left and right side walls 21, 21 of the box 2.
[0025]
6 and 7, reference numeral 51 denotes a rear surface of the compressing movable wall 5 in order to prevent the movable compressing wall 5 from being lifted by a harvest when the compressing operation or the discharging operation is performed by moving backward. An inclined plate is provided at the lower part of the side so as to protrude downwardly downwardly, and a sliding plate 52 slidably contacting the upper surface of the floor plate 20 is connected to the lower end side.
[0026]
6 and 7, 24 is an upper front portion in a side view of the cargo box 2, and is installed so as to be inclined downward from the front to the rear at a position substantially aligned with the foremost stop position of the compression movable wall 5. A top plate provided on the upper surface of the upper frame 5a of the compression movable wall 5 to be described later is guided to the central portion in the packing box 2 by the receiving plate, and the harvested material thrown into the portion near the front end in the packing box 2 is guided. The harvested material deposited on the plate 50 acts to scrape into the packing box 2 when the compression movable wall 5 returns to the front.
[0027]
In addition, on the upper surface of the upper frame 5 a of the compression movable wall 5, while the compression movable wall 5 moves backward to compress the harvest in the packing box 2, the crop blown from the harvester is compressed and movable. A flat top plate 50 is fixed as shown in FIG. 4 so as not to enter the compression space formed in front of the wall 5, and is blown in while the compression movable wall 5 is compressed as shown in FIG. The coming harvest is accumulated on the top plate 50, and when moving forward with the end of compression, the harvest on the top plate 50 can be compressed by the lower part of the receiving plate 24 as shown in FIG. The wall 5 is scraped off toward the compression space in the packing box 2 generated by the forward movement, and the harvest is blown into this space. The reciprocating operation of the compression movable wall 5 in the front-rear direction is intermittently repeated about 2 to 3 times during the harvesting operation, so that the harvested product in the packing box 2 becomes full.
[0028]
In this embodiment, the hydraulically driven reciprocating mechanism w for moving the compression movable wall 5 back and forth is a reciprocating mechanism for compression for compressing the harvested material loaded in the cargo box 2 to form a loading space. In this example, w1 is divided into a reciprocating mechanism w2 for discharge for discharging backward from the packing box 2 when the harvest is full.
[0029]
In this example, the reciprocating mechanism w1 for compression that reciprocates the compression movable wall 5 back and forth to compress the harvest in the packing box 2 is guided from a hydraulic device mounted on the towing vehicle side. This is a hydraulic cylinder in which the piston expands and contracts by hydraulic pressure, and is disposed on the front end side of the aforementioned packing box base 23.
[0030]
A reciprocating discharge for pushing the movable movable wall 5 to the rear end side of the packing box 2 so that the harvesting is discharged to the rear of the packing box 2 when the harvested goods loaded in the packing box 2 are full. In this example, the moving mechanism w2 is composed of a hydraulic cylinder in the same manner as the reciprocating mechanism w1 for compression described above, and is arranged on the lower surface side of the reciprocating mechanism w1 for compression so that the packing box base 23 It is supported by
[0031]
As shown in FIG. 5, the discharge reciprocating mechanism w2 made of a hydraulic cylinder has a base end of a cylinder portion 70 connected to a front end portion of a packing box base 23 via a bracket 230. A support frame 71 formed in a rectangular tube shape is fitted to the outer periphery of the portion 70 so as to be slidable in the front-rear direction with respect to the cylinder portion 70, and the rear end side of the support frame 71 is the floor plate 20 of the packing box 2. It slidably enters and exits into a rectangular guide tube 72 that is long in the front-rear direction and is fixedly installed at the central portion of the upper surface in the left-right direction. It connects with the protrusion end part of the piston part 73 which protrudes via the connection member 74, and when the piston part 73 is extruded, the square frame-shaped support frame 71 is extruded with it.
[0032]
The reciprocating mechanism w1 for compression composed of the hydraulic cylinder described above is connected and supported at the base end of the cylinder portion 75 to the upper surface on the front end side of the support frame 71 via the bracket 76. The projecting end portion of the piston portion 77 that removably protrudes from is connected to a connecting metal fitting 78 installed on the front side of the compression movable wall 5 as shown in FIG. When the moving mechanism w1 pushes out the piston portion 77, the compression movable wall 5 pushes backward, and in the state where the pushing operation of the piston portion 77 reaches the stroke end, the reciprocating mechanism w2 for discharging is moved. By performing the pushing operation, the support frame 71 supporting the compression reciprocating mechanism w1 is pushed backward, and the compression movable wall 5 is pushed backward further.
[0033]
When the harvest is full in the packing box 2 in a compressed state, the forage wagon A is moved to transport the harvest to a predetermined place, where the discharge operation is performed by the operation of the above-described discharge hydraulic cylinder S2. Do.
[0034]
S is a hydraulic cylinder device for dumping, in which the packing box base 23 is tilted and rotated backward about the rotation fulcrum 22 to dump the packing box 2 during the discharging operation, and is shown in FIG. As described above, the vehicle is spanned between the front and rear intermediate portions of the packing box base 23 and the front and rear intermediate portions of the machine body frame 1, and acts so as to rotate the packing box 2 backward by the operation thereof. .
[0035]
A lock mechanism 8, which is installed at the rear end portion of the lower surface side of the packing box 2, is linked to the door 6 which is installed to open and rotate around the support shaft 60 at the opening at the rear end side of the packing box 2. Thereby, the door 6 is locked in the closed position during harvesting and transporting operations.
[0036]
The locking mechanism 8 is formed in an angled shape in which an arm extending rearward is provided with a locking hook 80, and is a shaft that freely rotates around the fulcrum shaft 81 on the rear end side of the lower surface of the cargo box 2. The supporting metal fitting 82 that is supported, the connecting link 83 that is connected to the other arm that hangs down below, the fixed support arm 85 that is raised from the support shaft 110 of the traveling wheel 11, and the upper end portion thereof And a connecting shaft 84 that connects and supports the front end side of the connecting link 83, and the connecting shaft 84 provided on the upper end side of the support arm 85 is displaced upward with respect to the rotation fulcrum 22 of the load box base 23. I'm allowed.
[0037]
Thus, when the load box base 23 is in a horizontal posture, the arm on the side of the lock fitting 82 on which the lock hook 80 is provided is in a posture along the bottom surface of the load box 2, and the lock hook 80. Meshes with a locking pin 61 provided at the lower end of the door 6 to lock the door 6, and when the load box base 23 starts to rotate around the rotation fulcrum 22, the connecting link 83 is connected to the rear end of the load box 2. By pulling forward with respect to the portion, the locking fitting 82 rotates clockwise around the fulcrum shaft 81 to release the lock.
[0038]
Further, the door 6 is provided with a connecting arm 62 extending upward through the support shaft 60 on the upper end side thereof, and a bracket 63 for supporting the base end side of the hydraulic cylinder device S for dumping described above. In the meantime, the connecting link 64 is connected to the elongated hole 65 via the connecting pin 66, and when the packing box 2 is rotated by dumping, the door 6 is opened and rotated in conjunction with this. is there.
[0039]
Accordingly, when the hydraulic pressure is fed to the hydraulic cylinder device S and the dumping box is rotated by tilting the packing box 2 backward, the dumping operation is performed in conjunction with the dumping operation. The lock of the lock mechanism 8 is released, and at the same time, the door 6 is pivoted and opened counterclockwise around the support shaft 60 in conjunction with the dumping of the cargo box 2.
[0040]
When the packing box 2 reaches the maximum dumped state, the operation lever c... Arranged in parallel with the hydraulic control box C is operated to first push the compression reciprocating mechanism w1 to its stroke end. Then, by operating the discharging reciprocating mechanism w2, the harvested product loaded in the packing box 2 is pushed out and discharged.
[0041]
When the harvesting is finished, the reciprocating mechanism w2 for discharging is contracted, the reciprocating mechanism w1 for compression is contracted, and the hydraulic cylinder device S for dumping is further contracted to close the door 6, and at the same time the locking mechanism 8 moves to the lock position, locks the door 6, and allows the harvest box 2 to be blown.
[0042]
Next, FIG. 10 shows another embodiment. In this embodiment, only the reciprocating mechanism w1 for compression is disposed on the upper surface side of the floor plate 20 of the packing box 2, and the reciprocating mechanism w2 for discharge and the reciprocating mechanism w1 for compression provided on the outer periphery thereof are supported. As shown in FIG. 11, the support frame 71 and the guide frame 72 are arranged on the lower surface side of the floor board 20 so that the entire upper surface side of the floor board 20 is a flat surface without unevenness.
[0043]
Next, FIG. 12 shows still another embodiment. In this example, a hydraulically driven reciprocating mechanism w is formed in a multistage hydraulic cylinder so that the harvested product in the packing box 2 can be compressed and discharged by this single multistage hydraulic cylinder. Thus, there are effects such as reducing the number of parts and simultaneously reducing the height of the packing box 2.
[0044]
Next, FIGS. 13 and 14 show still another embodiment. In this embodiment, a hydraulically driven reciprocating motion for reciprocating back and forth a compression movable wall 5 provided on the front end side of the cargo box 2 so as to freely move between the left and right side walls of the cargo box 2 in the front-rear direction. It is a modification about the mechanism w.
[0045]
In this example, shafts 90 and 91 along the left-right direction are respectively supported on the front end side and the rear end side of the load box base 23 on which the load box 2 is supported, and one of these shafts 91 is output from the hydraulic motor M. A drive shaft is conducted through the shaft, and the other is a driven shaft that rotates following the shaft.
[0046]
These shafts 90 and 91 are sprinkled with the sprockets 92 facing each other in the front-rear direction, and the chains 93 and 93 are placed on the shafts 90 and 91 on the upper surface of the floor plate 20 of the cargo box 2. Rotate along, wind around the endless so that the lower peripheral surface rotates the lower surface side of the floor plate 20, and connect the front end portion of the upper peripheral surface side of the chains 93 and 93 to the bottom of the compression movable wall 5. Thus, by rotating the rear shaft 91 as a drive shaft forward and backward by driving the hydraulic motor M, the compression movable wall 5 reciprocates back and forth along the upper surface of the floor plate 20 of the cargo box 2. .
[0047]
In this example, the rest of the configuration excluding the reciprocating mechanism w that reciprocates the compression movable wall 5 back and forth is the same as the embodiment shown in FIGS. A detailed description will be omitted with reference numerals.
[0048]
【The invention's effect】
As described above, the forage wagon according to the present invention is a packing box of the forage wagon that follows or accompanies a harvested product that is harvested and shredded by a harvesting machine such as a forage harvester or a corn harvester. In the work of receiving and loading inside, transporting to a predetermined place and unloading, the compressed movable wall provided on the front end side of the packing box when compressing the harvest received in the packing box for high density loading The product is compressed by pushing it back in the packing box with a predetermined stroke by a hydraulically driven reciprocating mechanism, and by returning it to the front in the packing box, A loading space is formed so that the harvest can be received therein, and the operation of the compression movable wall is repeated several times so that the harvest can be loaded with high density. The compression of the harvested product and the formation of the loading space by the operation of the compression movable wall can be performed while receiving the harvested product from the harvester, so that the harvesting operation by the harvester can be performed without interruption. In addition, when unloading the harvested product, the compressed movable wall is compressed and moved to the rear end side in the packing box so that the harvested product can be discharged using the compressed movable wall.
[0049]
Therefore, it is possible to efficiently load the harvested product in a compressed state as compared with the conventional forage wagon, and the unloading time can be shortened.
[0050]
In addition, the valve related to the hydraulic operation lever is an electromagnetic valve, and its operation switch is located near the tractor driver's seat, or the hydraulic control device and its operation lever are separated from the wagon and mounted near the tractor driver's seat. These operations can be easily operated without getting out of the driver's seat at all.
[0051]
In addition, unloading is compressed at high density, and since it is pushed out, the shredded material that is unloaded does not have to be stepped on with a tractor, etc., and is sealed and stored as it is with a vinyl sheet or the like to produce silage feed. Can also be obtained.
[Brief description of the drawings]
FIG. 1 is a side sectional view of a conventional forage wagon.
FIG. 2 is a plan view of a forage wagon embodying the present invention.
FIG. 3 is a side view of the same forage wagon.
FIG. 4 is a perspective view of a main part of the same forage wagon.
FIG. 5 is a perspective view of a hydraulic cylinder for compression and a hydraulic cylinder for discharge of the same forage wagon.
FIG. 6 is a partially cutaway side view showing a state where the compression movable wall of the forage wagon is operated to compress the load.
FIG. 7 is a partially cutaway side view showing a state where the compression movable wall of the forage wagon is subjected to a return stroke after a compression operation and a loading space is formed in the cargo box.
FIG. 8 is a partially broken side view showing a state in which the load box of the same forage wagon is dumped and discharged to discharge the load.
FIG. 9 is a longitudinal rear view of the cargo box of the same forage wagon.
FIG. 10 is a side view of another embodiment of the same forage wagon.
FIG. 11 is a longitudinal rear view of the packing box of the embodiment.
FIG. 12 is a side view of still another embodiment of the same forage wagon.
FIG. 13 is a plan view of still another embodiment of the same forage wagon.
FIG. 14 is a vertical side view of the embodiment.
[Explanation of symbols]
A ... Forage wagon, a ... guide member, b1, b2, b3 ... guide roller, C ... hydraulic control box, c ... operating lever, w ... reciprocating mechanism, w1 ... reciprocating mechanism for compression, w2 ... for discharge S ... hydraulic cylinder device for dumping, 1 ... body frame, 10 ... towing rod, 11 ... traveling wheel, 110 ... support shaft, 2 ... cargo box, 20 ... floor plate, 21 ... side wall, 22 ... times Dynamic fulcrum, 23 ... Cargo box base, 230 ... Bracket, 24 ... Receptacle plate, 3 ... Floor conveyor, 4 ... Elevator device, 5 ... Compression movable wall, 5a ... Upper frame, 5b ... Lower frame, 5c ... Strut frame, 50 DESCRIPTION OF SYMBOLS ... Top plate, 51 ... Inclined plate, 52 ... Sliding plate, 6 ... Door, 60 ... Support shaft, 61 ... Locking pin, 62 ... Connecting arm, 63 ... Bracket, 64 ... Connecting link, 65 ... Slot, 66 ... connecting pin, 70 ... cylinder part, 71 ... support frame, 7 DESCRIPTION OF SYMBOLS ... Guide frame, 73 ... Piston part, 74 ... Connection member, 75 ... Cylinder part, 76 ... Bracket, 77 ... Piston part, 78 ... Connection metal fitting, 8 ... Locking mechanism, 80 ... Locking hook, 81 ... Supporting shaft, 82 DESCRIPTION OF SYMBOLS ... Locking metal fitting, 83 ... Connecting link, 84 ... Connecting shaft, 85 ... Support arm, 90 ... Shaft (driven shaft), 91 ... Shaft (drive shaft), 92 ... Sprocket, 93 ... Chain.

Claims (1)

On the upper surface side of the vehicle body frame (1) that is self-propelled or towed, a carrier box base (23) formed in a gantry shape is connected to the middle part of the front and rear of the carrier box base (23) and the vehicle body frame ( 1) With a hydraulic cylinder device for dumping that can be bridged between the front and rear intermediate portions of 1), with respect to the vehicle body frame (1) about the pivot point (22) provided on the rear end side of the vehicle body frame (1). A dump box is installed so as to rotate backward, and a packing box (2) formed in a box shape is mounted on the upper surface side of the packing box base (23), and on the front end side of the packing box (2), A compression movable wall (5) that freely moves in the front-rear direction along the upper surface of the floor plate (20) of the packing box (2) is installed between the left and right side walls (21), (21) of the packing box (2). A reciprocating machine that moves the compression movable wall (5) back and forth by hydraulic drive between the compression movable wall (5) and the packing box base (23). The reciprocating mechanism that moves the movable wall (5) and the compression movable wall (5) moving back and forth in the cargo box (2) by rotating (w) over the bridge In the forage wagon, which is carried out in accordance with (w) and is capable of discharging grass by the operation of the reciprocating mechanism (w) with the packing box (2) rotated in the dump, on the front end side of the packing box (2) The compression movable wall (5) mounted so as to move back and forth between the left and right side walls (21), (21) in the packing box (2) along the upper surface of the floor plate (20) of the packing box (2). Is provided with an upper frame (5a) and a lower frame (5b) projecting forward at the upper and lower portions on the front side, respectively, and formed into a frame shape in side view, and the upper edge of the compression movable wall (5) part ceiling plate projecting shelf plate along the front upper surface of the upper frame (5a) and (50) provided in the upper part of the front side of the packing box (2), the lower edge Kitenban (50) top off you, characterized in that from the front to sliding contact provided with receiving plate (24) inclined downward toward the rear to Orejiwagon of.

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