JP2005245298A - Farm working vehicle - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To stably travel a furrow without utilizing a rail. <P>SOLUTION: The subject farm working vehicle 1 is equipped with a machine body 4 supported so as to be able to freely travel single furrow W in the longitudinal direction which is length direction of ridge length by front wheels 2 and rear wheels 3, a driving part 7 for driving the rear wheels 3, a pair of ridge guide rollers 9 each arranged on both sides of the machine body 4 so as to bring the peripheral surface into contact with the sides of the ridge U and roll the rollers in accordance with advance of the machine body 4 in front of the front wheels 2 and a pair of rollers 9 each arranged on both sides of the machine body 4 so as to bring the peripheral surface into contact with the side of the ridge U and roll the rollers in accordance with advance of the machine body 4 behind rear wheels 3. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to an agricultural work vehicle for performing farm work such as management and harvesting of crops such as vegetables and flowers that run in the furrows and are cultivated in the straw.

  The simple farm work system described in patent document 1 is illustrated as a conventional farm work vehicle. In this system, as shown in FIG. 5, guide wheel 106 having a door wheel-like groove for preventing wheel removal is arranged around the lower center of the table support frame 110, and assists both sides of the rearmost part of the table support frame 110. A work rail 101 having a structure in which wheels 107 are installed and a table 108 with a rotatable backrest 109 is installed in the center upper portion of the table support frame 110 is placed in the center of the valley bottom 103 of the furrow W. It is placed on the tube 104. Then, an adjustment slide plate 117 so that the ground contact surfaces of the auxiliary wheels 107 on both sides can be higher than the central guide wheel 106, a guide wheel 106 having a radius of curvature smaller than that of the monorail straight pipe 104, and a seat. A handle 120 is provided so that the guide wheel 106 can be easily detached from the straight pipe 104 when the frontmost part of the table support frame 110 is lifted.

JP 2003-250306 A

  However, in the conventional simple farm work system, it is necessary to lay the monorail straight pipe 104 in the furrow W in advance, and there is a problem that it takes time.

  In addition, in order to arrange the monorail straight pipes 104 in advance in all the intercostal spaces W, a large number of monorail straight pipes 104 are required, and there is a problem that costs increase. For example, it is conceivable to use several monorail straight pipes 104 while sequentially transferring them to the adjacent interspace W, but there is a problem that it takes time and work efficiency is poor. In particular, in the case of crops (vegetables, flowers, etc.) that grow in a direction perpendicular to the ridge U, when the monorail straight pipe 104 is moved to the adjacent intercostal space W, the straight pipe 104 becomes This is difficult because the crop may be damaged when it comes into contact with the crop, or the soil attached to the straight pipe 104 may fall on the crop (especially a flower). For this reason, it has to make a detour via the edge part of the ridge U, and there exists a subject that work efficiency falls significantly.

In order to solve the above-mentioned problem, the agricultural work vehicle of the first invention is:
A farm vehicle that includes a machine body that is supported by a front and rear wheel so as to be able to travel in the front-rear direction, which is the length direction of the kite, and a drive unit that drives at least one of the front and rear wheels,
At least one pair of pair of guide guide rollers respectively provided on both sides of the machine body is provided so that the peripheral surface abuts on the side surface of the machine and rolls as the machine body advances.

  According to this configuration, the machine body can be reliably guided along the ridge by the heel guide roller. For this reason, unlike the conventional example, it is possible to stably travel between the furrows without using rails. And even with a kite that is not formed in a straight line or a kite that is provided along the contour line of an inclined land, the entire machine can be reliably run along the kite, so that the operator can concentrate on farming work. .

  As an agricultural work vehicle of 2nd invention, in the said 1st invention, the aspect which provided one set of the said heel guide rollers in front of the said wheel in the front side is illustrated.

  According to this configuration, before the wheel on the front side travels between the saddles, the saddle guide roller reliably guides the aircraft along the saddles, that is, the traveling direction of the aircraft is easily aligned with the saddles. Can do.

As a farm work vehicle of the 3rd invention, in the above-mentioned 2nd invention, while providing at least 2 sets of a pair of above-mentioned fence guide rollers,
An example in which the pair of scissors guide rollers is provided at the rear or rear of the machine body is illustrated.

  According to this configuration, the machine body can be more reliably guided along the ridge by the heel guide roller provided at the rear or rear of the machine body.

  As an agricultural work vehicle of 4th invention, the aspect which provided the seat which can turn freely between the said front-and-rear wheels in the said body in any one of the said 1st-3rd invention is illustrated.

  According to this configuration, the operator can easily turn the direction of the body appropriately according to farm work regardless of the traveling direction of the machine body, for example, it becomes an unreasonable posture twisting the body. Since this can be avoided, the burden on the operator can be reduced.

  As an agricultural work vehicle according to a fifth aspect of the present invention, in any one of the first to fourth aspects, the pair of rod guide rollers is configured to be configured to be retractable upward.

  According to this configuration, for example, when traveling on a non-growth road such as a general road, or when transporting a farm vehicle, the fence guide roller does not come into contact with the ground and cause troubles such as travel or transportation. In addition, it can be evacuated.

  According to the farm work vehicle concerning the present invention, the outstanding effect that it can run stably between the furrows without using a rail is produced.

  1 to 4 show an agricultural work vehicle according to an embodiment of the present invention. As shown in FIGS. 1 to 3, the farm vehicle 1 is a machine body 4 that is supported by a left and right front wheel 2 and a single rear wheel 3 so as to be able to travel in a front-rear direction that is a heel length direction. A seat 5 provided between the front wheel 2 and the rear wheel 3 in the fuselage 4, a drive unit 7 provided behind the rear wheel 3 and driving the rear wheel 3 by the power of the engine 8 as a prime mover, and the front wheel 2 and a pair of heel guide rollers 9 disposed on both sides of the machine body 4 so that the peripheral surface comes into contact with the side surface of the machine body U and rolls as the machine body 4 advances, and the rear wheel 3. And a pair of heel guide rollers 9 disposed on both sides of the machine body 4 so that the circumferential surface abuts against the side surface of the machine body U and rolls as the machine body 4 advances, and the front wheels of the machine body 4 2 and the second work provided above the rear wheel 3 and the engine 8. And a table 11.

  The airframe 4 is basically formed longitudinally in the front-rear direction. An intermediate portion between the front wheel 2 and the rear wheel 3 in the airframe 4 is a footrest portion 15 formed so that the upper surface is at a lower position near the ground. In the center of the footrest 15, a seat 5 that can turn freely is provided. The seat 5 includes a column 16 standing on the body 4 and a seat portion 17 supported so as to be rotatable relative to the column 16. The support column 16 is configured to be adjustable in length, and the height of the seat portion 17 can be adjusted. Further, a pair of left and right transport handles 18 extending rearward are provided at the rear end of the body 4. A pedal 19 for simultaneously operating a clutch 24 (described later) and a brake 25 (described later) is provided at the rear portion of the footrest portion 15. When the pedal 19 is depressed, the clutch 24 is disengaged, The brake 25 works. An accelerator lever 26 that adjusts the rotational speed of the engine 8 is disposed behind the seat 5 in the fuselage 4.

  Supporting portions 20 that extend to the left and right for supporting the eaves guide roller 9 are respectively provided in front of the front wheel 2 and in the rear of the rear wheel 3 and the engine 8 in the body 4. The front support portion 20 fixes a rotating arm 31 pivotally supported by a pivot 30 extending in the left-right direction provided in front of the front wheel 2 so as to be vertically rotatable, and a rotational position of the rotating arm 31. The position fixing means 32 is provided. As a result, the pair of front side guide rollers 9 has an operating position Pa where the peripheral surface abuts against the side surface of the kite U and rolls as the machine body 4 advances, and a retracted position Pb retracted above the operating position. Can be switched to each other.

  The front wheel 2 is disposed on the front side of the body 4 with a space left and right. A wide tire is adopted for the rear wheel 3. The front wheel 2 and the rear wheel 3 are provided so as not to turn around.

  As the brake 25, a known configuration can be adopted as appropriate. The brake 25 of this example includes a brake pulley 27 that is attached so as not to rotate relative to the axle 3 a of the rear wheel 3, and a brake belt 28 that is loosely wound around the brake pulley 27. When the pedal 19 is depressed, the brake belt 28 is tightened to stop the rotation of the brake pulley 27, and when the pedal 19 is released, the brake belt 28 is loosened to allow the brake pulley 27 to rotate.

  The guide roller 9 is supported by the support portion 20 so that the relative position, the relative inclination, and the relative height in the left-right direction can be adjusted with respect to the mounting portion 44, as shown in FIG. In addition, a relatively hard and hollow cylindrical body 45 rotatably supported on the shaft 9 a and a cushion material 46 disposed on the peripheral surface of the cylindrical body 45 are provided. Here, the relatively hard cylindrical body 45 is adopted so that the circumferential surface of the cylindrical body 45 can firmly hold the side surface of the kite U, and thereby the traveling direction of the machine body 4 is set to the kite U. This is to make it easier to follow. The reason why the cushion material 46 is disposed on the peripheral surface of the cylindrical body 45 is to prevent damage to the surface of the ridge U and the multi-film stretched there. The cylindrical body 45 is configured to be hollow in order to reduce the weight.

  The drive unit 7 is connected to the engine 8 as a prime mover supported on the rear side of the rear wheel 3 in the fuselage 4, a speed reduction mission 35 connected to the engine 8, and the speed reduction mission 35 via a clutch 24. And a power transmission mechanism 36. The speed reduction mission 35 has a built-in speed change mechanism that can be adjusted by the speed change lever 29. Power is transmitted to the axle 3a of the rear wheel 3 through the power transmission mechanism 36, whereby the rear wheel 3 is driven.

  Next, a series of operation methods of the agricultural farm vehicle 1 will be described. Here, an example when harvesting fruits and vegetables planted in the cocoon U is shown. First, the agricultural work vehicle 1 is installed in the furrow W in the length direction of the rod. Next, the heel guide roller 9 in front of the front wheel 2 is set to the operating position Pa, and the peripheral surfaces of the left and right heel guide rollers 9 at the front of the front wheel 2 and the rear of the rear wheel 3 are wide on the side surfaces of the left and right heel U, respectively. The position and angle of the eyelid guide roller 9 are adjusted so as to contact each other. On the work tables 10 and 11, an object T used for farm work is placed. Next, the transmission lever 29 is set to an appropriate transmission amount and the engine 8 is started. Next, the worker M sits on the seat 5 facing either the left or right heel, and the left and right feet are respectively placed on the footrest 15 and the accelerator lever 26 is adjusted as appropriate, at a constant speed suitable for the desired farm work. The airframe 4 is caused to travel. Then, as shown in FIG. 3, the worker M performs the farm work toward the fence U. At this time, even if the kite U is bent or the kite U is inclined, the agricultural farm vehicle 1 automatically travels along the kite U by the kite guide roller 9. M does not need to adjust the traveling direction of the airframe 4 and can concentrate on the farm work. Further, for example, when trouble is taken in the work, if the pedal 19 is depressed, the clutch 24 is disengaged and the brake is operated, so that traveling can be temporarily stopped. When the pedal 19 is released, traveling at the original constant speed is resumed. At this time, since the pedal 19 is merely depressed or released, the worker M hardly needs to change the working posture.

  When transporting the main farm vehicle 1, as shown in FIG. 4, the worker M sets the heel guide roller 9 in front of the front wheel 2 at the retracted position Pb, holds the transport handle 18 and holds the rear wheel 3. Is lifted off the ground, and the vehicle body 4 is pushed forward or pulled back so as to travel by the left and right front wheels 2.

  According to the farm work vehicle 1 of the present example configured as described above, since the pair of fence guide rollers 9 is provided, the machine body 4 can be reliably guided along the fence U. For this reason, unlike the prior art, it is possible to stably travel through the furrow W without using rails. And even with a kite U that is not formed in a straight line or a kite U that is provided along the contour line of an inclined land, the entire machine body 4 can be reliably traveled along the kite U. You can concentrate.

  Further, since one set of the heel guide rollers 9 is provided in front of the front wheels 2, the heel guide rollers 9 guide the machine body 4 along the ridges U reliably before the front wheels 2 travel through the ridges W. That is, the traveling direction of the airframe 4 can be easily set along the heel U.

  Further, since the pair of saddle guide rollers 9 is provided at the rear of the machine body 4, the machine body 4 can be guided along the fence U more reliably by the saddle guide rollers 9.

  In addition, since the seat 5 that can turn freely is provided between the front wheel 2 and the rear wheel 3 in the machine body 4, the worker M can easily adjust the body direction appropriately according to farm work regardless of the traveling direction of the machine body 4. For example, since it is possible to avoid an unreasonable posture such as twisting the body, the burden on the worker M can be reduced.

  Further, the pair of eaves guide rollers 9 on the front side is configured to be retractable upward, so that, for example, when traveling in a place other than the interspace W such as a general road or when the rear wheel 3 is lifted and moved by the front wheel 2 When the agricultural work vehicle 1 is transported, it can be retracted so that the hail guide roller 9 does not come into contact with the ground and interfere with traveling or transporting.

In addition, this invention is not limited to the said embodiment, For example, it can also be suitably changed and embodied as follows, for example in the range which does not deviate from the meaning of invention.
(1) Provide a seat back on the seat 5.
(2) The drive unit 7 is configured to drive only the front wheel 2 or to drive both the front wheel 2 and the rear wheel 3.
(3) Use an electric motor as the prime mover.
(4) Change the number of front wheels 2 and rear wheels 3 as appropriate. For example, the rear wheel 3 may be two left and right wheels, or the front wheel 2 may be one and the rear wheel 3 may be two.
(5) Contrary to the above embodiment, when the pedal 19 is released, the body 4 stops traveling (for example, the clutch 24 is disengaged and the brake 25 is activated), and when the pedal 19 is depressed, the body 4 Is configured to start running (for example, the clutch 24 is connected and the brake 25 is disabled).

It is a left view which shows the agricultural work vehicle which concerns on one Embodiment which actualized this invention. It is a top view which shows the farm work vehicle. It is a rear view which shows the agricultural work vehicle. It is a left view which shows the conveyance state of the farm worker. It is a front view which shows the conventional agricultural work vehicle.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Agricultural work vehicle 2 Front wheel 3 Rear wheel 4 Airframe 5 Seat 7 Drive part 8 Engine 9 畝 Guide roller 18 Carrying handle M Worker Pa Operating position Pb Retraction position U Ｗ W 畝

Claims (5)

A farm vehicle that includes a machine body that is supported by a front and rear wheel so as to be able to travel in the front-rear direction, which is the length direction of the kite, and a drive unit that drives at least one of the front and rear wheels,
A farm work vehicle provided with at least one pair of a pair of heel guide rollers respectively disposed on both sides of the machine body so that a peripheral surface abuts against a side surface of the ridge and rolls as the machine body advances.   The agricultural work vehicle according to claim 1, wherein one set of the heel guide rollers is provided in front of the wheel on the front side. Including at least two sets of the pair of scissors guide rollers,
The farm work vehicle according to claim 2, wherein the pair of paired guide guide rollers is provided at the rear or rear of the machine body.   The agricultural work vehicle according to any one of claims 1 to 3, wherein a seat capable of freely turning is provided between the front and rear wheels of the machine body.   The farm work vehicle according to any one of claims 1 to 4, wherein the pair of fence guide rollers is configured to be retractable upward.

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