JPH06914Y2 - Fall prevention device for high dump wagon - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field of the Invention The present invention throws and stores a harvested product harvested by a shredder attached to the front of a work vehicle into a wagon, and then stores the harvested product in a silo or a truck. It is possible to prevent the farm work vehicle from tipping over backwards due to overloading of crops when the wagon is lifted to a high place for loading on the ground, and then rolled backwards, and it is possible to improve its safety. The present invention relates to a fall prevention device for a high dump wagon.

2. Description of the Related Art Conventionally, as shown in FIG. 4, a shredder harvester 2 is mounted in the front of an agricultural work vehicle 1 so that the shredder 2 can be adjusted up and down, and a cargo bed 3 equipped with an open top wagon 4 is provided in the rear. , The wagon 4 is turned backward by pushing up the hydraulic cylinder 5, and the harvest obtained by the shredder harvester 2 is transferred to the wagon 4
A high dump wagon that was thrown and stored at the same time as the harvested product was stored in a predetermined amount so that the wagon 4 could be turned backward and discharged to a desired position.
It is described in Japanese Patent No. 8351 and is publicly known.

Problems to be solved by the invention By the way, in the conventional high dump wagon,
The wagon was lifted to a high place in a state where more than the specified amount was thrown and stored in the wagon, and then the wagon was rolled backwards and discharged to load the stored harvest on silos or trucks. At that time, due to the excessive weight, the work machine often fell backward and had an unexpected accident.

The present invention has been made in view of the above problems of the conventional technology, and the purpose thereof is to discharge the harvested product by turning the wagon containing the harvested product to the rear by a hydraulic cylinder. A high-dump wagon that can prevent the agricultural work vehicle from falling backward by raising the fall prevention body upright on the ground surface by the connecting rod that is slid and raised in accordance with the backward turning operation of the wagon. The present invention is intended to provide a fall prevention device.

Means for Solving Problems The present invention solves the above problems, and the configuration thereof will be described below with reference to FIGS. 1 to 3 corresponding to the embodiment.

That is, the loading platform 104 is provided in the rear of the agricultural work vehicle 101 in which the shredder harvester 103 is mounted in the front part so as to be vertically adjustable. A support frame 106 is obliquely installed at a rear position of the loading platform 104. Then, a wagon 107 having an open upper surface, one end of which is pivotally attached to the support frame 106 with the pivot shaft 108 as an axis, is mounted on the platform 104. The wagon 107 is a hydraulic cylinder 109.
It is configured so that it can be turned rearward with the pivot shaft 108 as a fulcrum by the pushing-up operation. One end of a connecting rod 110 is pivotally attached to a rear upper position of the wagon 107. The lower end of the connecting rod 110 is pivotally connected to one end of a bell crank-shaped overturning prevention body 111 which is slidably mounted on the lower portion of the support frame 106, and the overturning prevention body 111 is moved in accordance with the backward turning operation of the wagon 107. It is a feature that can stand up.

Action Now, the shredder harvester 103 is attached to the front part of the agricultural work vehicle 101 so as to be adjustable up and down, and the wagon 107 having an open top is mounted on the loading platform 104. Move forward to a field with dense stems. Then, dense grass and stem culms are cut into appropriate lengths by the advancing shredder harvesting machine 103, and then thrown toward the wagon 107. As described above, when a predetermined amount of the harvested product is stored in the wagon 107, the harvesting work is interrupted, the agricultural work vehicle 101 is moved to the discharge place, and then the wagon 10 is moved by the hydraulic cylinder 109.
When 7 is dumped high, the wagon 107 is rolled backward from the position shown in the first diagram line to the position indicated by the chain line with the pivot 108 as the fulcrum, and the shredded harvested product is dropped and discharged.

By the way, as described above, during the discharge work of the harvest,
It happens that the harvested product is thrown more than a predetermined amount, and this loads the harvested product into silos, trucks, etc. After lifting the wagon 107 to a high place, turning it to the rear, it will be in the upper rear position of the wagon 107. The connecting rod 110, one end of which is pivotally attached, moves to the third position in response to the backward turning operation of the wagon 107.
As shown in the figure, it is rotated clockwise and pulled up. As a result, the bell-crank-shaped fall prevention body 11 in which the lower end of the connecting rod 110 is pivotally connected by the lifting operation of the connecting rod 110 is connected.
1 is swung counterclockwise about the shaft 112 of the support frame 106 as an axis. Therefore, when the wagon 107 is in the discharged state of the harvest, that is, when the wagon 107 is rolled backward, the fall prevention body 1
11 is completely erected downward on the ground surface A.

Therefore, even if the harvested product is stored in the wagon 107 in an amount larger than a predetermined amount and the harvested product is discharged, the overturning prevention body 111 stands upright on the ground surface and serves as a support. Therefore, it is possible to cause an accident such as the farm work vehicle 101 falling backward, and to perform the discharge work of the harvest under a stable state.

Embodiment An embodiment of the present invention will be described below.

In the drawing, 101 is a chlora-type caterpillar 10.
A self-propelled agricultural working vehicle equipped with 2;
A shredder harvester 103 whose height can be adjusted is attached to the front part of 1, and a loading platform 104 is horizontally provided to the rear part. The above-mentioned shredder harvester 103 shreds densely cultivated grass and stalks after harvesting fruits into suitable length dimensions,
It has a function of throwing the material onto the loading platform 104 via the blow-up cylinder 105. A support frame 106 formed in an appropriate shape is obliquely installed in the rear of the loading platform 104 so as to face rearward, and one end on the loading platform 104 is pivotally supported on the support frame 106 via a pivot 108, which is an open top type. Mount the wagon 107 of. A hydraulic cylinder 109 is provided between the loading platform 104 and the wagon 107, and when the hydraulic cylinder 109 is actuated, the entire wagon 107 is turned rearward so that the wagon 107 is at the position indicated by the chain line in FIG. Alternatively, the position can be restored to the solid line position. 110, 11
0 is the upper rear position of the wagon 107, that is, the pivot shaft 108.
A pair of left and right connecting rods, one end of which is pivoted 113 at a position slightly lower than the other, and the lower ends of the connecting rods 110, 110 are
Pivot 114, 114 is connected to one end of each side of a fall prevention body 111, which is pivotally mounted 112 on the lower part of the support frame 106.

The fall-preventing body 111 has a bell-crank shape as a whole when viewed from the side, and is formed in a U shape when viewed from a plane, and is connected to the connecting rod 1 according to the rearward turning operation of the wagon 107.
10 is swung up in the clockwise direction, and the fall prevention body 111 is swung in the counterclockwise direction around the shaft portion 112 as an axis to move the ground surface A.
Stand up. Reference numeral 115 is a driver's seat of the agricultural work vehicle 101.

Therefore, in the embodiment of the present invention, the wagon 107 is loaded with a predetermined amount or more of the harvested product, and the harvested product is loaded on a silo or a truck. Therefore, the wagon 107 is lifted to a high place, and then the wagon 107 is hydraulically operated. Cylinder 10
Even if the harvested product is discharged by turning backwards by 9,109, the connecting rods 110, 11 can be swung up in a clockwise direction in accordance with the backward turning operation of the wagon 107.
With 0, the fall prevention body 111 is erected upright on the ground surface A to serve as a support, and it is possible to prevent the agricultural work vehicle 101 from falling backward.

Effect of the Invention In summary, according to the present invention, a support frame 106 is obliquely installed behind a cargo bed 104 of an agricultural work vehicle 101 in which a shredder harvester 103 is vertically adjustable, and one end is pivotally supported on the cargo bed 104. An open top wagon 107 pivotally attached to a support frame 106 with a shaft 108 as an axis is mounted, and the wagon 107 is rotated rearwardly with the pivot shaft 108 as an axis by pushing up the hydraulic cylinder 109 to discharge the harvested product. In such a structure, one end of the connecting rod 110 is pivotally attached to the upper rear position of the wagon 107, and the lower end of the connecting rod 110 is a bell-crank-shaped member slidably mounted on the lower portion of the support frame 106. The fall prevention body 111 is pivotally connected to one end of the fall prevention body 111, and the fall prevention body 11 is rotated in accordance with the backward turning operation of the wagon 107.
Even if the wagon 107 stores an excessive amount of the harvested product and the harvested product is discharged by the turning action of the wagon 107 to the rear, the rear side of the agricultural work vehicle 101 is wagoned. The fall-preventing body 1 erected by a connecting rod 110 that is slidably raised in accordance with the rotation of 107.
It is possible to prevent the farm work vehicle 101 from falling backward by the support action of 11, or of course, it is stored under the support frame 106 during normal farm work or traveling, and does not disturb anything. The fall prevention body 111 is the wagon 1
Since it is automatically raised in response to the backward turning operation of 07,
The operation is extremely easy and the like.

[Brief description of drawings]

The drawing shows an embodiment of the device according to the present invention.
The figure is a side view, FIG. 2 is a plan view in which a main part is broken, FIG. 3 is an enlarged side view of a main part with a part cut away, and FIG. 4 is a side view of a conventional device. 101 ... Farm work vehicle, 103 ... Shredder harvester, 104 ... Luggage platform, 106 ... Support frame, 107 ... Wagon, 108 ... Pivot shaft, 109 ... Hydraulic cylinder, 110 ... Connection rod, 111
... Fall prevention body, 12 ... Axial part, 113 ... Pivot part, 114
… Pivot.

Claims (1)

[Scope of utility model registration request] 1. A support frame is obliquely provided at the rear of a loading platform of an agricultural work vehicle in which a shredder harvester is vertically adjustable so as to be adjustable up and down, and one end of the loading platform is pivotally attached to the supporting frame with a pivot shaft as an axis. A wagon with an open top is installed so that the wagon can be turned rearward with the pivot shaft as a fulcrum when the hydraulic cylinder is pushed up.One end of the connecting rod is pivoted at the upper rear position of the wagon. At the same time, the lower end of the connecting rod is pivotally connected to one end of a bell-crank-shaped fall-prevention body slidably mounted on the lower portion of the support frame, and the fall-prevention body is erected in accordance with the backward turning operation of the wagon. A fall prevention device for high dump wagons.