JP7040436B2 - Agricultural work vehicle - Google Patents

Description

The present invention relates to an agricultural work vehicle that enables an operator to perform various agricultural operations such as seedling transplanting work and crop harvesting work while traveling at an appropriate speed while sitting on a seat provided on a traveling vehicle body.

The above-mentioned agricultural work vehicle has the configuration described in Patent Document 1.

In this known agricultural work vehicle, a worker sits on a work seat of a traveling vehicle body provided with a crawler traveling device, puts legs open to the left and right on a step in front of the working seat, and performs agricultural work while traveling while straddling a ridge. However, since the left and right crawler traveling devices are driven by a drive source such as one engine or motor mounted in the center of the left and right at the rear of the work seat, the power to distribute the power from the drive source to the left and right crawler traveling devices. The transmission shaft is configured to be provided across the lower part of the traveling vehicle body.

Japanese Patent No. 5610401

However, in a conventional agricultural work vehicle, the power transmission shaft is provided across the lower part of the traveling vehicle body, so that the transplanted long seedlings may hit the power transmission shaft and be knocked down in the seedling transplanting work, or grow in the weeding work around the crop. Crops on the way may hit the power transmission shaft and be damaged.

Further, if the width of the ridges of the ridges for agricultural work is wider than the inner distance (tread) of the left and right crawler traveling devices, the agricultural work of traveling across the ridges cannot be performed.

The present invention is an agricultural work vehicle that performs farm work while straddling transplanted seedlings and crops with left and right traveling devices. By securing a high space under the vehicle body between the left and right traveling devices, the transplanted seedlings can be knocked down or growing. The purpose is to provide agricultural work vehicles that do not damage crops.

The above-mentioned problems of conventional agricultural work vehicles are solved by the following technical means.

The first invention is
The left traveling frame (1L) equipped with the left traveling device (8) and the right traveling frame (1R) equipped with the right traveling device (9) are connected by two front and rear horizontal frames (2F, 2B). A central platform (5) connecting two horizontal frames (2F, 2B) is provided, a work seat (6) is provided on the central platform (5), and two left and right are provided in front of each of the left and right sides of the central platform (5). The operation arms (11L, 11R) are extended, and two left and right footrest steps (12L, 12R) are provided at the ends of the left and right operation arms (11L, 11R), and two left and right traveling devices (8, 9) are provided. ) Are provided on the left traveling frame (1L) and the right traveling frame (1R), respectively.
The two front and rear horizontal frames (2F, 2B) can be fixed by sliding them up and down with respect to the two left and right traveling frames (1L, 1R), so that the height of the center stand (5) can be adjusted up and down. It is an agricultural work vehicle characterized by being there.
The second invention is
The left and right traveling devices (8, 9) are composed of grounding wheels (8, 8) and driving wheels (9, 9) located in front of and behind the work seat (6), and a battery is placed at the rear of the work seat (6). The first feature is that the left and right handle columns (16L, 16R) erected at the rear of the work seat (6) are provided with the left and right rear turning handles (17L, 17R) toward the rear while the (7) is mounted. This is the agricultural work vehicle of the present invention.
The third invention is
A first or first feature is that a left / right traveling switch (13L, 13R) for rotating and controlling the left / right drive motors (10L, 10R) is provided so as to be operable with a foot on the left / right footrest step (12L, 12R). 2 is the agricultural work vehicle of the present invention.
The fourth invention is
The left and right handle columns (16L, 16R) are provided with the left and right spare seedling stands (20L, 20R) located on the first spare seedling stand (19) and / or the left and right traveling devices (8, 9). It is the second agricultural work vehicle of the present invention characterized by.
The fifth invention is
An obstacle sensor (15) that monitors the front of the traveling vehicle body (1) is provided, and when the distance to the front obstacle is within a predetermined range, the left and right drive motors (10L, 10R) are stopped and controlled to be a distance from the vehicle in front. The agricultural work vehicle of the present invention according to any one of 1 to 4, wherein the left and right drive motors (10L, 10R) are controlled so as to travel while maintaining the above speed.
In the first invention related to the present invention, a left traveling frame (1L) equipped with a left traveling device (8) and a right traveling frame (1R) equipped with a right traveling device (9) are mounted on front and rear horizontal frames (2F, 2B), a work seat (6) is provided on the front and rear horizontal frames (2F, 2B), and left and right footrest steps (12L, 12R) are provided on the front and lower sides to drive the left and right traveling devices (8, 9). The left and right drive motors (10L, 10R) are provided on the left traveling frame (1L) and the right traveling frame (1R), respectively.

The second invention related to the present invention is the first invention related to the present invention, characterized in that the front-rear horizontal frame (2F, 2B) and the left-right traveling frame (1L, 1R) can be slid sideways and fixed. The farm work vehicle of the invention .

A third invention related to the present invention relates to the present invention, wherein the front-rear horizontal frame (2F, 2B) can be slid up and down with respect to the left-right traveling frame (1L, 1R) and fixed . It shall be the agricultural work vehicle of the first or second invention .

In the fourth invention related to the present invention, the left and right traveling devices (8, 9) are composed of ground rolling wheels (8, 8) and drive wheels (9, 9) located in front of and behind the seat work seat (6). , The battery (7) is mounted on the rear part of the work seat (6), and the left and right rear turning handles (17L, 17R) are attached to the left and right handle columns (16L, 16R) erected on the rear part of the work seat (6) toward the rear. The agricultural work vehicle according to any one of the first to third inventions related to the present invention, characterized in that it is provided.

In the fifth aspect of the present invention, the left and right traveling switches (13L, 13R) for controlling the rotation of the left and right drive motors (10L, 10R) are provided so as to be operable with the foot on the left and right footrest steps (12L, 12R). It is a farm work vehicle according to any one of the first to fourth inventions related to the present invention, which is characterized by the above.

A sixth aspect of the present invention relating to the present invention is to place the left and right spare seedling pedestals (19) and / or the left and right traveling devices (8, 9) on the left and right handle columns (16L, 16R). It is a farm work vehicle of the fourth invention related to the present invention characterized by providing (20L, 20R).

In the seventh aspect of the present invention , the traveling vehicle body (1) is provided with an obstacle sensor (15) for monitoring the front, and when the distance to the front obstacle is within a predetermined range, the left and right drive motors (10L, 10R) are used. The agricultural work vehicle according to any one of the first to sixth aspects of the present invention, which is characterized in that the left and right drive motors (10L, 10R) are controlled so as to stop and control the vehicle so as to travel while maintaining a distance from the vehicle in front. And.

In the present invention, the left and right traveling devices (8, 9) do not need a transmission shaft to transmit power, and a wide space can be formed between the front and rear horizontal frames (2F, 2B) and the ground, so that the tips of transplanted seedlings and crops hit. It will not be knocked down or hurt. In addition, farm work can be performed for a long time in the house without generating exhaust gas. In addition, the ground height of the front and rear horizontal frames (2F, 2B) can be adjusted to a height that does not damage the height of the transplanted seedlings and crops, and the work seat (6) can be easily worked according to the physique of the worker. Can be adjusted to height.
In the first invention related to the present invention, in this agricultural work vehicle, a worker sits on a work seat (6), opens his legs, and puts his feet on the left and right footrest steps (12L, 12R) to perform agricultural work. However, since the left and right traveling devices (8, 9) are driven by the left and right drive motors (10L, 10R), respectively, there is no need for a transmission shaft to transmit power to the left and right traveling devices (8, 9), and the front and rear horizontal frames (10L, 10R) are not required. Since a large space can be formed on the ground as 2F, 2B), the tips of transplanted seedlings and crops will not be hit and knocked down or damaged.

Further, since the left and right drive motors (10L, 10R) are used as the drive source of the left and right traveling devices (8, 9), farm work can be performed for a long time in the house without generating exhaust gas.

In the second invention related to the present invention, in addition to the effect of the first invention related to the present invention, the tread of the left and right traveling devices (8, 9) is changed so as to straddle according to the width of the work ridge. Because it can be done, work responsiveness is improved.

In the third invention related to the present invention, in addition to the effect of the first or second invention related to the present invention, the above-ground height of the front-rear lateral frame (2F, 2B) is adjusted to the height of the transplanted seedling or the crop. The height can be adjusted so as not to damage it, and the work seat (6) can be adjusted to a height that makes it easy to work according to the physique of the worker.

In the fourth invention related to the present invention, in addition to the effect of any one of the first to third inventions related to the present invention, the left and right handles provided on the left and right handle columns (16L, 16R) when maneuvering while walking. With the rear turning handle (17L, 17R), the ground rolling wheel (8, 8) can be lifted and turned easily with the drive wheel (9, 9) as the fulcrum.

In the fifth invention related to the present invention, in addition to the effect of any one of the first to fourth inventions related to the present invention, the worker sitting on the work seat (6) performs farm work with both hands while using his / her left and right feet. The left and right travel switches (13L, 13R) provided on the placement steps (12L, 12R) can be operated at a speed suitable for the work while operating with the feet, and the work efficiency is improved.

In the sixth invention related to the present invention, in addition to the effect of the fourth invention related to the present invention, the first spare seedling stand (19) and / or the worker while sitting in the work seat (6). It is possible to carry the spare seedlings on the left and right spare seedling stands (20L, 20R), and if the left and right spare seedling stands (20L, 20R) are provided, the worker will sit on the work seat (6). You can take out spare seedlings and transplant them.

In the seventh invention related to the present invention, in addition to the effect of any one of the first to sixth inventions related to the present invention, even if the traveling vehicle body (1) approaches a front obstacle, it does not collide. When the planting work is carried out following the automatic transplanter, the planting work can be carried out safely by traveling at a certain distance.

It is a top view of the agricultural work vehicle of this invention. It is a side view of the agricultural work vehicle of this invention. It is a top view which shows the state which the tread of the agricultural work vehicle of this invention is expanded to the maximum. It is a side view which shows the state which raised the vehicle height of the agricultural work vehicle of this invention to the maximum. It is a top view of the left spare seedling stand 20L.

Hereinafter, embodiments of the present invention will be described with reference to examples shown in the drawings. In the description of the embodiment, the left-right direction is referred to as left and right, the forward direction is referred to as forward, and the reverse direction is referred to as rear toward the forward direction of the aircraft, but the configuration of the present invention is not limited.

As shown in FIGS. 1 to 4, the traveling vehicle body 1 is connected so that the front side of the left traveling frame 1L and the right traveling frame 1R can be fixedly slid to the front horizontal frame 2F by the left front slide boss 3LF and the left front slide boss 3LF. , The rear side is fixedly connected to the rear horizontal frame 2B by sliding the rear side with the right front slide boss 3RF and the right front slide boss 3RF, and the work seat 6 and the work seat 6 are connected to the central base 5 connecting the front horizontal frame 2F and the rear horizontal frame 2B. The battery 7 is mounted back and forth.

Further, the front horizontal frame 2F is slid up and down and fixedly attached to the front upper left lower shaft 4LF standing on the left traveling frame 1L and the front right upper and lower shaft 4RF standing on the right traveling frame 1R, and the rear horizontal frame 2B is attached. After standing on the left traveling frame 1L, it is mounted on the upper left lower shaft 4LB and the rear right upper and lower shaft 4RB standing on the right traveling frame 1R so that it can be fixed and fixed, and the height of the center base 5 can be adjusted up and down. ing.

The left traveling frame 1L is equipped with the left grounding wheel 8L and the left driving wheel 9L in the front and rear, and the left driving wheel 9L is driven by the left electric motor 10L. The drive wheel 9R is mounted and the right drive wheel 9L is driven by the right electric motor 10R. If the left electric motor 10L and the right electric motor 10R are driven by a worm gear, the drive is stopped and the vehicle is stopped and braked.

Further, an obstacle sensor 15 such as an ultrasonic sensor is provided at the tip of the left traveling frame 1L toward the front, and if the vehicle is too close to a wall or agricultural machinery, the driving of the left electric motor 10L and the right electric motor 10R is stopped and a collision occurs. To prevent this, or to allow the worker sitting in the work seat 6 to perform the planting while traveling at a certain distance to the transplant work vehicle.

Left and right travel switches 13L that control the rotation of the left and right footrest steps 12L and 12R, the left electric motor 10L, and the right electric motor 10R by extending the left and right operation arms 11L and 11R to the left and right front of the center stand 5 and placing the operator's feet. 13R is provided, and the tips of the left and right operation arms 11L and 11R are left and right swivel handles 14L and 14R. When the left and right turning handles 14L and 14R are lifted, the left grounding wheel 8L and the right grounding wheel 8R can be floated and the traveling vehicle body 1 can be turned with the left and right drive wheels 9L and 9R as fulcrums. Further, the left / right traveling switches 13L and 13R can be operated while holding the left / right turning handles 14L and 14R.

Left and right handle columns 16L and 16R are erected on the left and right rear of the work seat 6 of the central platform 5, and the left and right rear turning handles 17L and 17R are projected rearward. Left and right shift levers 18L and 18R for adjusting the rotation speed are provided so that the operator can perform the maneuvering operation while walking behind the traveling vehicle body 1.

The first spare seedling mount 19 is provided under the left and right rear swivel handles 17L and 17R, and the left and right spare seedling mounts 20L and 20R are provided on the left and right handle columns 16L and 16R with the left and right rotation arms 21L and 21R, respectively. When a person gets on and off the work seat 6, the left and right spare seedling stands 20L and 20R are opened sideways.

1L Left-hand drive frame 1R Right-hand drive frame 2F Front side frame 2B Rear side frame 6 Work seat 7 Battery 8 Ground wheel 9 Drive wheel 10L Left-hand drive motor 10R Right-hand drive motor 12L Left-hand drive step 12R Right-hand drive step 13L Left-hand drive switch 13R Right Travel switch 16L Left-hand drive stanchion 16R Right-hand drive stanchion 17L Left-hand drive turning handle 17R Right-hand drive turning handle

Claims (5)

The left traveling frame (1L) equipped with the left traveling device (8) and the right traveling frame (1R) equipped with the right traveling device (9) are connected by two front and rear horizontal frames (2F, 2B) . A central platform (5) connecting two horizontal frames (2F, 2B) is provided, a work seat (6) is provided on the central platform (5), and two left and right are provided in front of each of the left and right sides of the central platform (5). The operation arms (11L, 11R) are extended, and two left and right footrest steps (12L, 12R) are provided at the ends of the left and right operation arms (11L, 11R), and two left and right traveling devices (8, 9) are provided. ) Are provided on the left traveling frame (1L) and the right traveling frame (1R), respectively.
The two front and rear horizontal frames (2F, 2B) can be fixed by sliding them up and down with respect to the two left and right traveling frames (1L, 1R) , so that the height of the center stand (5) can be adjusted up and down. A farming vehicle characterized by being. The left and right traveling devices (8, 9) are composed of grounding wheels (8, 8) and driving wheels (9, 9) located in front of and behind the work seat (6), and a battery is placed at the rear of the work seat (6). The claim is characterized in that (7) is mounted and left and right rear turning handles (17L, 17R) are provided on the left and right handle columns (16L, 16R) erected at the rear of the work seat (6) toward the rear. Agricultural work vehicle according to 1 . Claim 1 is characterized in that a left / right traveling switch (13L, 13R) for rotating and controlling the left / right drive motors (10L, 10R) is provided so as to be operable with a foot on the left / right footrest step (12L, 12R). Or the agricultural work vehicle described in 2 . The left and right handle columns (16L, 16R) are provided with the left and right spare seedling stands (20L, 20R) located on the first spare seedling stand (19) and / or the left and right traveling devices (8, 9). 2. The agricultural work vehicle according to claim 2 . An obstacle sensor (15) that monitors the front of the traveling vehicle body (1) is provided, and when the distance to the front obstacle is within a predetermined range, the left and right drive motors (10L, 10R) are stopped and controlled to be a distance from the vehicle in front. The agricultural work vehicle according to any one of claims 1 to 4 , wherein the left and right drive motors (10L, 10R) are controlled so as to travel while maintaining the above.

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