JPH06113636A - Farm product harvester - Google Patents

Abstract

PURPOSE:To provide a harvester designed to perform smoother harvesting operations by equipping an auxiliary operating device at a farm products digging-out position. CONSTITUTION:An auxiliary operating device 31 is installed at a position to dig out farm products thereto with a digging edge 9 in front of a digging conveyor 6 to perform auxiliary operations by man power for the farm products dug out. The device 31 is made up of a seat 32, steps 33, 33, a guardrail 34 and a safety switch 35, etc.; an operator sits on the seat with his back toward the advancing direction for the machine body.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is mainly applied to an agricultural product harvester for harvesting root vegetables such as sweet potatoes and potatoes, at a position where the agricultural product is excavated from the field by a digging blade. On the other hand, the present invention relates to an agricultural product harvester provided with an auxiliary work device for performing an auxiliary work by human power.

[0002]

2. Description of the Related Art Conventionally, as an agricultural product harvesting machine for harvesting root vegetables such as sweet potatoes and potatoes, a digging blade for digging agricultural products vegetated in the field from the front to the rear in the widthwise central part of the machine, There is known one provided with a digging conveyor that conveys agricultural products digged by a cutting blade toward the rear. Then, the applicant of the present invention excavates and conveys at a midway position of the excavation conveyor by a digging blade. For example, in the case of sweet potato, the strawberries and fine roots (whisker roots) are manually separated from the strawberries. It is proposed that a seat for an auxiliary worker is provided for performing so-called "splitting work".
Further, the disassembling work is generally performed on a sorting conveyor provided continuously with the digging conveyor.

[0003]

SUMMARY OF THE INVENTION By the way, sweet potatoes dug out of a field by a digging blade have a plurality of straws and fine roots connected by a vine-free vine, and all of them together with the soil around them. When it is dug up and placed on a digging conveyor and conveyed, it can be sorted and stored without damage to the straws. However, when the soil is dry and is placed on the digging conveyor and falls from the post conveyor gap, and when the straw is transported from the digging conveyor to the sorting conveyor in a bare state, the straw is damaged during the transportation process. When the straw is placed on the digging conveyor and part of the straw or the fine root remains in the field, the straw on the digging conveyor is pulled by the part of the straw or the fine root in the field. There was a problem that it was rubbed against the conveyor and scratched.

Further, depending on the production area, when the vines are processed before harvesting the sweet potatoes, the stalks with the vines may be pulled up from the field to some extent to carry out the separation work, but this is a heavy labor. Not only that, but there was a problem that work efficiency deteriorated. Furthermore, there is a problem that the work efficiency of the harvester is greatly affected depending on whether or not the loosening work is performed. The present invention is intended to solve the above problems.

[0005]

[Means for Solving the Problems] In order to achieve the above object, the present invention provides (1) a cutting blade for digging agricultural products vegetated in a field from the front to the rear in the widthwise central part of the machine body, In a self-propelled agricultural product harvester equipped with a digging conveyor that conveys agricultural products digged by a digging blade to the rear, in the position where the agricultural product is dug up from the field by the digging blade, the dug agricultural products Was equipped with an auxiliary work device for performing auxiliary work manually

(2) The above-mentioned auxiliary work device includes a seat on which the worker who performs the auxiliary work sits rearward or forward with respect to the traveling direction of the machine body, a step of placing the foot of the worker, and a handrail to be gripped by the worker. A safety switch for stopping the traveling of the machine body, driving of the digging conveyor, raising and lowering, folding, etc. in an emergency, (3) providing an emergency switch on the handrail,
That the engine of the harvester is stopped in an emergency, (4) In the above seat, a sensor that operates by sensing the weight of the worker when seated is provided, and while this sensor is operating,
It is characterized in that it is configured so that the digging conveyor cannot be moved up and down and folded.

[0007]

The present invention having the above construction has the following functions. Since the agricultural products are dug up from the field by the digging blade, the dug-up agricultural products are assisted by human power, so the sweet potatoes can be separated during the harvesting process, which is efficient and does not damage the strawberries. Harvesting work is performed. The auxiliary work device, a seat on which the worker sits rearward or forward with respect to the traveling direction of the machine body, and a step of placing a foot,
Since it is composed of a handrail and a safety switch, it is easy and safe to perform operations such as loosening when harvesting sweet potatoes.

An emergency switch is provided on the handrail to stop the engine of the harvester in an emergency. Therefore, when an operator sitting on a seat feels danger, he / she can press the emergency switch to harvest. The machine is stopped and safety is ensured. The seat is equipped with a sensor that operates by sensing the weight of the worker when it is seated. While the sensor is in operation, the digging conveyor cannot be moved up and down and folded so that the operator can sit and work. The worker can safely continue the work.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be specifically described below with reference to the accompanying drawings. 1 to 4, reference numeral 1 denotes a potato harvester, and the potato harvester 1 is equipped with crawlers 3 and 3 which form a pair of right and left on a body 2 and enable super-spinning. An engine 4 is mounted on the machine body 2 on the front side of the crawlers 3 and 3, and a generator driven by the engine, a hydraulic pump and the like (not shown) are mounted in the vicinity thereof. A transmission 5 is provided at a lower position on the front side of the machine body 2 between the crawlers 3 and 3. In addition, from the lower front of the machine body 2 through the transmission 5 to the upper center of the machine body, the agricultural products vegetated in the field are excavated and conveyed backward, and the excavation conveyor device 6 inclined so that the tip side descends The conveyor device 6 has a base portion pivotally supported so that a front portion thereof can move up and down. A control unit 7 is provided on the other side of the machine body 2 opposite to the engine 4.

In the excavation conveyor device 6, excavation blades 9 are attached to the tips of the left and right side frames (frames) 8, link rods are provided between the side frames 8, 8 and slats are provided at predetermined intervals. The excavation conveyor 10 is wound, and a tilting lower end side is vertically rotatable around a tilting upper end rotating portion 10a, and a hydraulic cylinder 11 provided between the machine body 2 and the side frames 8 and 8 is provided.
The vertical movement adjustment, that is, the adjustment of the digging depth is performed by the expansion and contraction operation of No. 1, and the fold conveyor 10 and the digging conveyor 10 can be folded from the middle of the side frames 8 and 8 toward the fuselage side. The folding and unfolding operations are performed by the hydraulic cylinder 12. The moving speed of the digging conveyor 10 can be adjusted steplessly or stepwise. In addition, the ridge-following device 14 that follows the brackets 13 and 13 projecting forward from the left and right side frames 8 and 8 along with the movement of the machine body along the length direction of the ridge to be harvested.
Is provided.

The ridge-following device 14 is provided with a pair of wheels 15 and 15 which are in contact with the inclined shoulders of the ridge to be harvested so as to face each other. It is supported so that it can be adjusted up and down and that the support bar 17a can be moved left and right by slide mechanisms 17 and 17. Also, a pair of wheels 15,1
5 has a camber angle. The side frame 8 of the excavation conveyor device 6 is provided with a power connecting / disconnecting mechanism (not shown) near the folding portion. Digging conveyor device 6
An auxiliary worker boarding device 18 on which an auxiliary worker who carries out pretreatment of the harvested and conveyed crops is boarded is disposed on the side of the. This auxiliary worker boarding device 18 includes a step 18a, a vertically adjustable and rotatable seat 18b, and a handrail 1.
8c and is removable if unnecessary.

At the position where agricultural products (eg, sweet potatoes) are dug up from the field by the digging blade 9, an auxiliary work device 31 is provided for performing an auxiliary work by manpower on the dug up agricultural products. The auxiliary work device 31 includes a seat 32 attached to the support bar 17a so that an operator who performs the auxiliary work can sit backward with respect to the traveling direction of the machine body, and steps 33 and 33 in which a worker whose back-and-forth movement can be adjusted puts his / her feet.
And a handrail 34 that an operator holds, and a safety switch 35 that stops traveling of the machine body, driving of the digging conveyor 10, raising and lowering by the hydraulic cylinder 11, folding by the hydraulic cylinder 12, and the like in an emergency. In this auxiliary work device 31, the seat 32 may be provided forward with respect to the traveling direction of the machine body, and a step, a handrail, and a safety switch corresponding thereto may be provided.

An emergency switch may be provided on the handrail 34 to stop the engine 4 of the harvester in an emergency. Further, as shown in FIG. 5, the seat 32 is pivotally supported at the front part with respect to the support bar 17a.
Provided with a sensing switch 37 which is rotatably pivoted via a coil spring 36 and whose rear part is supported by a coil spring 36, and the coil spring 36 is compressed by the weight of the operator when seated to sense the presence of the operator. While the sensing switch 37 is operating, the excavation conveyor 10 may be configured so that it cannot be moved up and down by the hydraulic cylinder 11 and folded by the hydraulic cylinder 12.

A sorting conveyor device 19 for carrying out sorting work while placing and transferring the harvested products is arranged at a rear position of the machine body behind the digging conveyor device 6. An operator boarding device 20 on which a worker performing the operation of the control unit 7 and the sorting work is mounted on one side in the transfer direction of the sorting conveyor device 19 and a sorting worker on which the worker performing the sorting work is mounted on the other side. A boarding device 21 is provided. A clutch lever 22 that can be operated in conjunction with the traveling clutch lever provided in the control section 7 and the clutch lever of the digging conveyor 10 is provided near the sorting operator boarding device 21. The both boarding devices 20 and 21 have steps 20a and 21 respectively.
It is composed of a and seats 20b and 21b which are vertically adjustable and rotatable. Further, handrails 23, 23 also serving as strength members of the machine body 2 are provided at the front positions of the two boarding devices 20, 21 facing the sorting conveyor device 19.

The sorting conveyor device 19 can be easily replaced with a plurality of other types having different sorting forms as required, and in this embodiment, a rod (bar) conveyor type is mounted. In addition, a flat belt type, a rope conveyor type in which many short horizontal bars are fixed to every other rope at predetermined intervals, and a large number of taper rollers are arranged side by side in the width direction with the front side thick. For example, there is a taper roller type in which a roller is rotated, and in addition to these, it is possible to replace with a sorting conveyor having a different sorting mode. A space 24 is formed below the sorting conveyor device 19. Although not shown, a sieve line is provided below the terminal end of the sorting conveyor device 19.

At the rear end of the machine body behind the sorting conveyor device 19, a harvested product loading device 25 for mounting a container for containing harvested products is arranged. This harvest equipment 25
Is a platform that can be loaded with a large number of containers containing harvested items, and can be adjusted up and down by changing the front end of the machine, and by rotating the front end,
It can be displaced between a use state that projects to the rear of the machine and a stored state that stands on the machine side. Although not shown, an overhanging portion may be provided at steps 20a and 21a of both the boarding devices 20 and 21 to mount a container for containing harvested products.

A straddle frame 26 is provided so as to extend above the handrails 23 and 23 so as to extend above the sorting conveyor device 19 and the excavation conveyor 10, and a light 27 for illuminating the front and rear directions of the machine body is attached to the straddle frame 26. Has been. In addition, the parasol 30 is tilted in all the front, rear, left, and right directions via the parasol mounting seat 29 at the tip of the support arm 28 having the base end fixed to the straddle frame 26 and extending rearward.
It is fixedly supported. The parasol 30 shades the worker sitting on the worker boarding device 20 and the sorting worker boarding device 21, and a fan or a radio may be attached to the column of the parasol 30.

The transmission 5 that receives power from the engine 4 to change gears is equipped with a hydraulic continuously variable transmission (HST) (not shown) for continuously changing gears. To change gears, connect power transmission via side clutch and differential device,
The crawlers 3 and 3 are disengaged so that the crawlers 3 and 3 are continuously and stepwise changed. A brake device is also provided in association with the differential device. Then, when the steering lever is largely operated, the side clutch, the differential mechanism, and the brake are actuated so as to turn the aircraft into a super-complex turn.

Further, as described above, the digging conveyor 10 is
The movement speed can be adjusted continuously and stepwise, and by combining this with stepless or stepped traveling of the crawlers 3 and 3, the excavation work speed can be freely set. When the potato harvester 1 is not used, the digging conveyor device 6 rotates the digging conveyor device 6 as a whole around the rotating portion 10a, or folds the tip side portion as shown in FIG. It can be transported by rotating it to the side of the aircraft with a stowed state, shortening the longitudinal length of the aircraft and loading it on the loading platform of a light truck.
In addition, it can be stored in a warehouse, etc., and the headland can be turned in a small area.

Next, the operation of the potato harvester 1 constructed as described above will be described. When harvesting root vegetables such as sweet potatoes from the field, the potato harvester 1 rolls the wheels 15 and 15 of the ridge-following device 14 onto both inclined shoulders of the ridge to be harvested, and a digging conveyor device. 6 digging blade 9
Is vertically adjusted by the hydraulic cylinder 11 to adjust the digging depth, and the forward movement of the machine digs the harvested material with the digging blade 9, and the auxiliary work device 31 is used for the dug sweet potatoes.
The worker sitting on the seat 32 of the above performs the disassembling work, and lifts it obliquely upward while conveying it with the soil by the digging conveyor 10.

The harvested product discharged from the end of the digging conveyor 10 onto the sorting conveyor 19 is transferred to the worker boarding device 2
0 and the operator sitting on the sorting operator boarding device 21
The root vegetables in the disintegrated harvested product are manually selected and stored in a container mounted on the harvested product mounting device 25.
Also, small foreign matters and soil remaining on the sorting conveyor 19
It is discharged from the end of the conveyance, passes through the space 24, and falls into the field.

Here, the potato harvester 1 has an engine 4, a transmission 5, an operating portion (operating system) 7, and an auxiliary working device 31 arranged in front of the crawlers (traveling devices) 3 and 3, and the rear side thereof. By arranging the worker boarding device 20, the sorting worker boarding device 21, and the harvest product mounting device 25 on the front and rear sides of the machine body 2, the left and right balance is improved, workability and work accuracy are improved, and the machine body 2 The runnability, turning performance, and stability are improved. In addition, the traveling device (crawlers 3, 3) is configured to be capable of super-spinning, and the transmission 5 is disposed in the central portion on the front side of the machine body.
When making a super turning turn, it can turn in either the left or right direction with good balance. Therefore, the crawlers 3 and 3 do not greatly scrape the soil in the field.

A seat 3 is provided in front of the digging conveyor device 6.
2, steps 33, 33, handrail 34, safety switch 3
Since the auxiliary work device 31 composed of 5 or the like is provided, the canning work can be performed easily and safely at the time of sweet potato harvesting, and efficient harvesting work can be performed without damaging the strawberries.
In addition, when the handrail is provided with an emergency switch, the engine of the harvester can be stopped in an emergency, and the worker sitting on the seat and working can work safely. Further, when a sensor is provided on the seat, which operates by sensing the weight of the worker when seated, lifting and folding of the digging conveyor is automatically prevented, and the worker continues to work safely. You can

Further, in front of the digging conveyor device 6, there is provided a ridge following device 14 for following the movement of the machine body along the length direction of the ridge to be harvested, and a pair of ridges to be rolled and contacted with the inclined shoulders of the ridge to be harvested. Since the wheels 15 are provided so as to face each other so as to be vertically adjustable and horizontally adjustable with respect to the digging conveyor device 6, both wheels 15 accurately follow the ridges to be harvested to automatically steer the machine body. The automatic digging / conveying is performed by the digging conveyor device 6. Therefore, the worker sitting on the worker boarding device 20 can spend most of the time on the sorting work except for the operation of the machine body steering operation at the ridge end of the ridge to be harvested. When the headland is turned at the end of the field, the excavation conveyor device 6 is folded by the hydraulic cylinder 12 so that the crawlers 3 and 3 can be turned at a small turning radius together with the super-field turning.

The potato harvester 1 of the present invention can be used not only for the potato harvesting work but also for the work of collecting the empty cans, empty bottles, wood chips, etc., which are left on the coast or sand dunes. Can be done. In that case, the ridge following device 14 and the auxiliary work device 31 are removed, or the ridge following device 1
4 may function as a digging depth adjusting device for the digging blade 9.

[0026]

As described above, the agricultural product harvesting machine of the present invention has the following effects. At the position where the agricultural products are dug up from the field by the digging blade, an auxiliary work device for assisting the dug up agricultural products by human power is provided, so that, for example, at the time of sweet potato harvesting, it is transported by the digging conveyor. It is possible to perform the disassembling work in advance, and it is possible to carry out the efficient harvesting work without damaging the straw.

In the auxiliary work device, a seat on which the worker who performs the auxiliary work sits rearward or forward with respect to the traveling direction of the machine body, a step of placing the foot of the worker, a handrail grasped by the worker, and a body of the machine body in an emergency. Since it is equipped with a safety switch that stops traveling, driving of the digging conveyor, raising and lowering, folding, etc., operations such as canning work during sweet potato harvesting can be performed easily and safely.

Since the handrail is provided with an emergency switch to stop the engine of the harvester in an emergency, when the worker sitting on the seat and working feels a danger, the emergency switch is pushed. The operation of the harvester is stopped, and safety can be secured. The seat is equipped with a sensor that operates by sensing the weight of the worker when it is seated. While this sensor is in operation, the digging conveyor cannot be moved up and down and bent so that the operator can sit and work. The worker who does this can continue the work safely.

[0029]

[Brief description of drawings]

FIG. 1 is a plan view of an entire potato harvester showing an embodiment of the present invention.

FIG. 2 is a side view of the same.

FIG. 3 is a rear view of the same.

FIG. 4 is a perspective view of the same.

FIG. 5 is a side view showing another embodiment of the seat of the auxiliary work device.

[Explanation of symbols]

1 potato harvester 2 machine body 3 crawler 4 engine 5 transmission 6 excavation conveyor device 7 control part 8 side frame (frame) 9 excavation blade 10 excavation conveyor 10a rotating part 11 hydraulic pressure for vertical movement adjustment of excavation conveyor device Cylinder 12 Hydraulic cylinder for folding the digging conveyor device 13 Bracket 14 Ridge tracking device 15 Wheel 16 Vertical adjustment mechanism 17 Slide mechanism 17a Support bar 18 Auxiliary operator boarding device 18a Step 18b
Seat 19 Sorting conveyor device 20 Worker boarding device 20a Step 20b Seat 21 Sorting worker boarding device 21a Step 21b
Seat 22 Clutch lever 23 Handrail that also serves as a strength member of the aircraft 24 Space 25 Harvesting device 26 Crossing frame 27 Light 28 Support arm 29 Parasol mounting seat 30 Parasol 31 Auxiliary work device 32 Seat 33 Step 34 Handrail 35 Safety switch 36 Coil spring 37 Sensing switch

Claims (4)

[Claims] 1. A digging blade for digging agricultural products vegetated in a field from the front to the rear in the widthwise central part of the machine body, and a digging conveyor for conveying agricultural products digged by the digging blade toward the rear. In a self-propelled agricultural product harvester equipped with, at the position where the agricultural product is excavated from the field by the above-mentioned digging blade, an auxiliary work device for performing auxiliary work on the excavated agricultural product by manpower is provided. Characteristic agricultural product harvesting machine. 2. The auxiliary work device comprises a seat on which a worker who performs an auxiliary work sits rearward or forward with respect to a traveling direction of the machine body, a step of placing a foot of the worker, a handrail grasped by the worker, and an emergency. The agricultural product harvesting machine according to claim 1, further comprising a safety switch for stopping traveling of the machine body, driving of the digging conveyor, lifting, folding, and the like. 3. The agricultural product harvesting machine according to claim 1, wherein the handrail is provided with an emergency switch to stop the engine of the harvesting machine in an emergency. 4. The seat is provided with a sensor that operates by sensing the weight of an operator when it is seated, and the digging conveyor cannot be moved up and down or folded while the sensor is operating. The agricultural product harvesting machine according to claim 1, 2, or 3.