JP3300210B2 - Agricultural harvester - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a direct connection type truck having a net pallet or a flexible container for storing harvested agricultural products connected to the rear end of an agricultural product harvester for harvesting root crops from a field. Related to harvested agricultural products.

[0002]

2. Description of the Related Art Conventionally, there is known a self-propelled agricultural product harvester in which root vegetables such as sweet potatoes, potatoes, and konjac potatoes are harvested from a field, sorted and stored. And, to the rear end of the agricultural product harvester as described above, a towing vehicle equipped with a net pallet or a flexible container is connected via a towing device, and the crops harvested and sorted from the field by the agricultural product harvester, The present applicant has proposed an agricultural harvester in which harvesting is performed while being stored in a net pallet or a flexible container.

[0003]

The agricultural harvester to which the above-mentioned towing vehicle is connected has the following problems. . Since the towing vehicle is connected to the rear end of the agricultural harvester via the towing device, the overall length of the aircraft becomes longer and workability is poor. . The towing vehicle could only turn with a large turning radius, even though the crop harvester itself was capable of spin turning. . Since the towing vehicle freely turns (rotates) left and right with respect to the agricultural harvester, it is difficult to store (put) the harvested items on a net pallet or a flexible container. . It took a lot of labor and time to unload the net pallets or flexible containers containing the crops from the towing vehicle. The present invention has been made to solve the above problems.

[0004]

SUMMARY OF THE INVENTION In order to achieve the above-mentioned object, according to the present invention, there is provided a vehicle which can move forward and backward.
At the rear end of the aircraft harvester equipped with a self-propelled traveling device ,
The chassis with wheels is allowed to rotate so that the chassis tilts forward.
However, it is connected so as to be able to rotate in the vertical direction so as to restrict the rotation that tilts backward, and it is possible to rotate vertically in this chassis
Fixes and unlocks the carrier frame pivotally attached to
Characterized in that was.

According to a second aspect of the present invention, on the premise of the agricultural product harvester of the first aspect, a damper is interposed between the undercarriage and the carrier frame.

According to a third aspect of the present invention, based on the agricultural product harvester of the first or second aspect, a container support frame is detachably provided to the carrier frame.

[0007]

According to the above construction, the agricultural harvester of the present invention has
The following actions are performed. (1) A chassis with wheels is connected to the rear end of the self-propelled agricultural harvester so as to be vertically rotatable,
By fixing the loading frame which can be rotated up and down to this chassis so as to be fixed and releasable, the overall length of the fuselage can be shortened, and the turning and backward movement of the fuselage can be performed smoothly. It is easy to store the harvested items in the net pallets or flexible containers mounted on the carrier frame. By dumping the carrier frame against the undercarriage, the net pallet or the flexible container containing the harvest can be easily dropped. In addition, although the chassis is allowed to pivot forward,
Can be rotated up and down to regulate the backward tilting rotation
The aircraft is connected to the aircraft, so the reverse operation of the aircraft is stable
It can be carried out.

(2) By interposing a damper between the undercarriage and the undercarriage frame, when the undercarriage frame is dumped to the undercarriage and the net pallet or the flexible container containing the harvested product is lowered, the undercarriage frame is Gently dumps and does not damage crops stored in net pallets or flexible containers.

(3) By providing the container supporting frame detachably with respect to the carrier frame, a net pallet or a flexible container can be mounted on the carrier frame, and other general cargo can be mounted and transported.

[0010]

Embodiments of the present invention will be specifically described below with reference to the accompanying drawings.

[First Embodiment] In FIGS. 1 to 4, reference numeral 1 denotes a potato harvester.
Is equipped with an engine 3 on its body 2 and crawlers 4 and 4 which form a left-right pair and enable spin turning. A body 2 extending between the crawlers 4 and 4 is extended in the front-rear direction, and a digging blade (not shown) is attached to a tip end thereof to dig potatoes vegetated in a field and transport the vines backward. A conveyor 5 is provided.

Behind the harvesting conveyor 5, there is provided a sorting conveyor 6 which receives the crops conveyed by the harvesting conveyor 5 and sorts the crops by an operator. On both left and right sides of the sorting conveyor 6, a driving seat / sorting work seat 7 and a step 8 are provided, and on the opposite side, a sorting worker's seat 9 and a step 10 are provided. In this embodiment, the harvester is the potato harvester 1, but this may be a harvester for harvesting other agricultural products.

At the lower left and right sides of the rear end of the body 2, connecting frames 11, 1 for connecting a chassis 16 to be described later are provided.
1 is provided. The lower portions of the connecting frames 11 and 11 are connected by a connecting pipe 12, and an intermediate portion in the longitudinal direction of the connecting pipe 12 is connected by a connecting rod 13 projecting rearward from an intermediate position in the width direction of the body 2. . Connection holes 14, 14 are formed in the upper portions of the connection frames 11, 11. Connection portions 17, 17 projecting forward from a chassis 16 equipped with a pair of left and right casters 15, 15 are formed in the connection holes 14, 14. Are connected via connecting pins 18 so as to be rotatable in the vertical direction.

The front edge 11 of the connecting frames 11, 11
a, 11a and an abutment plate 19 provided on the undercarriage 16 are in contact with each other so that the undercarriage 16 is substantially horizontal, and the undercarriage 16 rotates vertically about the connecting pins 18, 18. At this time, the rotation of the chassis 16 in the forwardly inclined state is permitted, but the rotation of the chassis 16 in the backwardly inclined state is restricted. When the potato harvester 1 is retracted, the chassis 16 is held in a substantially horizontal state or in a slightly forwardly inclined position, and the rearwardly inclined position is regulated so that the rearward operation of the aircraft can be stably performed. I have.

A carrier frame 20 is supported on the undercarriage 16 so as to be able to turn vertically and to be dumped. The loading frame 20 is connected to the connecting frame 21 projecting downward from both left and right sides of the rear end of the chassis 16 with respect to the loading frame 2.
The connecting frame 22 projecting downward from
Are pivotally supported in a vertically rotatable manner via the At the center in the left-right direction of the front end of the carrier frame 20, a hook engaging portion 24 for fixing and releasing the carrier frame 20 to and from the chassis 16 is provided.

On the other hand, a pair of brackets 25 are erected at an intermediate position in the longitudinal direction of the connecting pipe 12, and a lower portion of an engaging hook 26 is provided between the brackets 25, 25 by a rotating shaft 2.
7, and is rotatably supported in the front-rear direction so as to be engaged with and disengaged from the hook engaging portion 24.
The rotation shaft 27 extends long toward one of the connection frames 11 and penetrates through the connection shaft 11, and the operation lever 28 is fixed outside the connection frame 11. The operation lever 28 is fitted into an operation guide 29, and is normally urged by a spring 28a in a direction in which the engagement hook 26 is engaged with the hook engagement portion 24.

The lower portion of the engagement hook 26 and the connecting rod 13
A tension spring 30 is stretched between them, and urges the engaging hook 26 in a direction of engaging with the hook engaging portion 24. The stop pin 26 provided on the engagement hook 26
When a is in contact with the stopper 31 provided on the bracket 25, it is almost upright and the engagement hook 26
Are engaged with the hook engaging portion 24, or are in an engagement standby state.

A cylinder-type damper 33 is interposed between a damper bracket 32 protruding upward and a lower portion of the carrier frame 20 at the center of the rear end of the chassis 16 in the left-right direction. When the engagement between the engagement hook 26 and the hook engagement portion 24 is released and the carrier frame 20 is dumped rearward around the shaft 23, the damper 3
The carrier frame 20 dumps slowly by the resilience of 3.

On the upper surface of the carrier frame 20, a carrier plate 34 is stretched. Further, a front container support frame 35 and side container support frames 36, 36 are detachably provided upright at a front center position and left and right side positions of the loading frame 20. And these container support frames 35, 36, 36
Then, a net pallet or a flexible container 37 is supported and mounted. Reference numeral 38 denotes a container mounting base engaging hook, which is used when one end of the container mounting base is used when the undercarriage 16 and the carrier frame 20 are not connected to the potato harvester 1.

Next, the operation of the peach harvester 1, the undercarriage 16, and the carrier frame 20 configured as described above will be described.

The potato harvester 1 is used, for example, when harvesting potatoes for processing from a field with the chassis 16 and the carrier frame 20 connected. The potatoes are dug out of the field by the harvesting conveyor 5 by the forward movement of the fuselage 2,
The soil is transported while falling, and potatoes and impurities are discharged onto the sorting conveyor 6 from the transport end of the harvesting conveyor 5.

In the sorting conveyor 6, a sorting operation for picking up potatoes in the course of the movement is performed by an operator sitting on the driver's seat and sorting work seat 7 and a sorting operator sitting on the sorting worker's seat 9. Will be The picked potatoes are put into a net pallet or a flexible container 37 supported by the front container supporting frame 35 and the side container supporting frames 36 of the loading frame 20. Note that an input conveyor may be provided between the selection conveyor 6 and the net pallet or the flexible container 37 so that the selected harvested products are automatically input.

On the other hand, the undercarriage 16 and the carrier frame 20
The potato harvester 1 is integrally pivotally mounted on the connecting pins 18, 18 so as to be rotatable vertically about the connecting pins 18, 18, and its rotation range allows the undercarriage 16 to tilt forward. The backward tilting rotation is regulated, and the potato harvester 1
When the vehicle is retracted, the chassis 16 is held in a substantially horizontal state or in a slightly forwardly inclined position, and the rearwardly inclined position is regulated, so that the body can be moved backward in a stable manner. In addition, the length of the body in the front-rear direction is shorter than that of the case where the body is connected by the towing rod, and the traveling radius is smaller.

When the harvest in the net pallet or the flexible container 37 is full, the harvesting operation is interrupted, and the operating lever 28 is operated to release the engagement between the engaging hook 26 and the hook engaging portion 24. The loading frame 20 can be dumped rearward around the shaft 23, and the loading frame 20 is slowly dumped by the elastic force of the damper 33, and the rear end is grounded as shown in FIG. The container 37 can be lowered easily and without damaging the harvest. Thereafter, when the carrier frame 20 is rotated back to the original position,
The hook 26 is automatically engaged with the hook engaging portion 24. Then, a new net pallet or a flexible container 37 is loaded, and the harvesting operation is restarted.

[Second Embodiment] In the present invention, as shown in FIG. 5, the front container supporting frame 35 and the side container supporting frames 36, 36 mounted on the carrier frame 20 are formed as follows.
.. May be changed to short container support frames 39, 39.

[Third Embodiment] As shown in FIG. 6, in the present invention, the side container supporting frames 36, 36 or the short container supporting frame 39 mounted on the carrier frame 20 are transported. As the support frame 40, for example, a container accommodating a harvested product may be mounted and transported.

[0027]

As described above, according to the agricultural product harvester of the present invention, the following effects can be obtained. . A chassis equipped with wheels is connected to the rear end of the self-propelled agricultural harvester so that it can rotate vertically, and a loading frame that can rotate vertically can be fixed to this chassis and released. Since it is pivoted, the overall length of the aircraft can be reduced. In addition, the turning and backward movement of the aircraft can be performed smoothly. Further, the harvesting work can be easily performed on the net pallet or the flexible container mounted on the carrier frame.

[0028] Since a damper was interposed between the undercarriage and the carrier frame, the carrier frame was dumped gently when lowering the net pallet or flexible container containing the harvested items by dumping the carrier frame onto the chassis. No damage to harvests stored on pallets or flexible containers. Also, the danger of the carrier frame suddenly dumping is eliminated.

[0029] Since the container supporting frame is provided detachably with respect to the carrier frame, it is possible to carry a net pallet or a flexible container on the carrier frame, or to carry other general loads on the carrier frame.

[Brief description of the drawings]

FIG. 1 is a side view of a first embodiment of an agricultural harvester according to the present invention.

FIG. 2 is a partial plan view of the same.

FIG. 3 is a partially enlarged side view of the same.

FIG. 4 is an exploded perspective view of a main part.

FIG. 5 is a partial perspective view of a second embodiment of the agricultural product harvester according to the present invention.

FIG. 6 is a partial perspective view of a third embodiment of the produce harvester according to the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Potato harvester 2 Body 3 Engine 4 Crawler 5 Harvesting conveyor 6 Sorting conveyor 7 Driving and sorting work seat 8,10 Step 9 Sorting worker's seat 11 Connecting frame 11a Front edge 12 Connecting pipe 13 Connecting rod DESCRIPTION OF SYMBOLS 14 Connection hole 15 Caster 16 Chassis 17 Connection part 18 Connection pin 19 Abutment plate 20 Carrying frame 21 Connection frame on the chassis side 22 Connection frame on the loading frame side 23 Shaft 24 Hook engagement part 25 Bracket 26 Engagement hook 26a Stop pin 27 Rotating shaft 28 Operation lever 29 Operation guide 30 Tension spring 31 Stopper 32 Damper bracket 33 Damper 34 Packing board 35 Front container support frame 36 Side container support frame 37 Net pallet or flexible container 38 Container mounting stand engaging hook 39 Short container support frame 40 Transport support frame

──────────────────────────────────────────────────続 き Continuation of the front page (56) References Japanese Utility Model Sho 55-22251 (JP, U) Japanese Utility Model Hei 4-52417 (JP, U) Japanese Utility Model 58-117822 (JP, U) Japanese Utility Model Sho 59- 6580 (JP, U) Jikken 43-21611 (JP, Y1) (58) Fields investigated (Int. Cl. ⁷ , DB name) A01D 90/00 B62D 53/00

Claims (3)

(57) [Claims] A self-propelled traveling device capable of moving forward and backward is provided.
The fuselage rear end portion of the example was agricultural harvester, a chassis with wheels, the rotation of該車table is pre傾状I with tolerated but rear傾状
Is connected so as to be able to rotate up and down so as to regulate
A loading bed that is pivotally attached to this chassis so that it can rotate vertically.
An agricultural harvester wherein the frame is fixedly and releasably engaged . 2. The agricultural product harvester according to claim 1, wherein a damper is interposed between the undercarriage and the carrier frame. 3. The container support frame is detachably mounted on the carrier frame.
Agriculture harvester as described.