JP3041885B2 - Transplant machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a transplanting machine in which a transplanting section provided with four or more seedlings is mounted on the rear side of a traveling vehicle body.

[Conventional technology]

Conventionally, this type of riding type transplanter has a configuration in which seedling planting bodies are arranged at equal intervals in the left and right direction, and the left and right rear wheels of the traveling vehicle body are located inside the left and right outermost end seedling planting bodies in the left and right direction, The configuration is such that the seedlings are arranged outside the plurality of seedlings on the left and right sides in the left-right direction and do not overlap with the seedlings in the left-right direction.

[Problems to be solved by the invention]

In a riding type transplanter, by making the treads of the left and right wheels of the traveling vehicle body as wide as possible, it is possible to obtain a body structure in which the left and right transplantation depth does not vary much.

However, in the case of a transplanter, the left and right wheels cannot be arranged at arbitrary positions without any restrictions. That is, if the right and left rear wheels close to the front-back direction and the seedling plant are arranged at positions that overlap the seedling plant in the left-right direction, the topsoil surface on which the seedlings are planted becomes rough and the seedlings cannot be planted in a proper posture. is there. Therefore, there is a condition that the left and right rear wheels must be arranged at positions between the planting streaks that do not overlap the seedling plant in the lateral direction.

Further, in the above conventional transplanter, the left and right rear wheels are arranged in the left and right outermost end of the left and right outermost seedling plant. If the left and right rear wheels are arranged at the same time, the above conditions can be satisfied and the tread of the left and right wheels can be enlarged. However, in this case, there is a problem that the mud pushing in the left and right directions due to the rolling of the rear wheel reaches the seedlings planted in the previous process and disturbs the planting posture of the seedlings, and the airframe is rotated at the edge of the field. When this is done, there is a problem that the turning radius becomes large and workability deteriorates. Therefore,
There is also a condition that the left and right rear wheels must be disposed on the inner side in the left-right direction from the leftmost and rightmost outermost seedling plant.

Therefore, an object of the present invention is to obtain a transplanter having a body configuration in which the treads of the left and right wheels are enlarged as much as possible while satisfying the above-described arrangement conditions of the left and right rear wheels, and the variation of the transplantation depth is small.

[Means for solving the problem]

In order to solve the above problem, the present invention provides four or more seedlings 24 on the rear side of the riding traveling vehicle body 1 equipped with a pair of left and right front wheels 3,3 and rear wheels 4,4. In the transplanting machine equipped with the transplanting parts 12 arranged at intervals in the left-right direction, the left and right rear wheels 4, 4 are connected to the right and left outermost seedling planting bodies 24.
A plurality of seedlings 24 at the center on the left and right sides further inside in the left and right direction
More outside in the left-right direction, arranged in a position not overlapping with the seedling plant 24 in the left-right direction, the transplanting part 12 so that the left-right spacing of the seedling plant 24 has a relatively wide portion and a narrow portion. The transplanter is characterized in that it is configured so that the portion of the seedling plant 24 that has a wide left-right space is located inside the left and right rear wheels 4, 4 in the left-right direction.

[Action and Effect of the Invention]

The transplanter of the present invention, the left and right rear wheels 4, 4 in the left and right outermost end seedling plant 24 in the left and right direction, the left and right center outside the plurality of seedling planting body 24 in the left and right direction, in the left and right direction In the position, it is arranged so as not to overlap with the seedling plant 24, and the transplanting part 12 is configured so as to have a relatively wide portion and a narrow portion where the lateral spacing of the seedling plant 24 is relatively wide, and Since the wide part of the left and right gap is located inside the left and right rear wheels 4 and 4 in the left and right direction, the left and right rear wheels 4 and 4 are planted at the left and right positions so as not to roughen the topsoil surface where the seedlings are planted. Arranged in a position that does not overlap with the body, and disturb the planting posture of the seedling by pushing the seedling planted in the previous process,
The left and right rear wheels 4 and 4 should be placed inside the left and right outermost end seedling plantings in the left and right direction so that the turning radius does not become large and the workability does not deteriorate. It is possible to enlarge the number of treads of 4 and 4, and obtain a transplanter having an airframe configuration with little variation in transplantation depth.

〔Example〕

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

1 and 2, reference numeral 1 denotes a riding traveling vehicle body, which is equipped with a pair of left and right front wheels 3 and rear wheels 4 that are driven and driven at a front portion and a rear portion of a vehicle body frame 2, respectively. The engine 5 is mounted on the vehicle body frame 2 at a substantially middle position in the front-rear direction. The engine 5 is covered by a cover 6, and a driver's seat 7 is provided on the engine cover 6 so as to be slidable left and right. A steering handle 8 is provided on the front side of the driver's seat 7 and the body frame 2
The hydraulic cylinder 10 is mounted on the support frame 9 erected at the rear end of the
The base end of the elevating link 11, which is rotated by the expansion and contraction of the elevating link and moves up and down at the rear end side, is pivotally supported. At the rear end of the elevating link 11, a plurality of (in this embodiment, 6) transplant portions 12 are planted right and left. Is connected so as to be rollable. This transplant 12 and driver's seat 7
The first fertilizer 13 is disposed between the first fertilizer 13 and the second fertilizer 14 at the rear of the transplant portion 12.

A transmission 15 is located below the front of the body frame 2.
And receives power from the engine 5 to drive the front wheels 3 and transmit power to a rear wheel differential 16 provided at the front of the transmission 15 so that a rear wheel transmission shaft 17 The power is transmitted to the rear wheel 4 via the power supply. A transmission box 18 is provided below the rear of the body frame 2.
Is provided, receives power from the transmission 15 via the transmission shaft 19, transmits power to the transplant unit 12 via the transplant unit transmission shaft 12a, and transmits the power to the first fertilizer 13 through the fertilizer feeding link 20. Power is transmitted.

The transplanting section 12 has a main frame 21 on which seedlings for transplanting are placed on the upper side, and a seedling mounting table 22 which reciprocates right and left at a predetermined stroke is obliquely provided. float
The seedling take-out port 22 provided at the inclined lower end of the seedling mounting table 22 while rotating in the rearward direction while the
Seedlings 24 are provided for planting seedlings one by one from a. Seedling platform 22, seedling take-out opening
22a, seedling plant 24 and the like, the left and right spacing is not even,
As shown in FIG. 3, a so-called row-like arrangement is adopted in which the interval h between the multiple strips (two strips) is wider than the interval g between the multiple strips. Although not shown, the center of the float 23 is supported by the link mechanism so as to be able to swing up and down with respect to the main body frame 21, and a hydraulic switching valve is provided in the vicinity of the link mechanism to switch by the vertical movement of the float 23, The hydraulic switching valve expands and contracts the hydraulic cylinder 10 to raise and lower the transplanting section 12 via the lifting link 11 so that the contact pressure of the float 23 is kept substantially constant and the seedling 24a planted by the seedling plant 24 is planted. The depth is made almost constant. Reference numeral 22b denotes a seedling guide provided at the upper end of the seedling mounting table 22.

The left and right floats 23 are disposed behind the front wheel 3 and the rear wheel 4 of the passenger traveling vehicle body 1 as shown in FIGS. We are trying to level the ground. Further, the left and right spacing of the seedling plant 24 between the rear wheels 4 and 4 of the transplant portion 12 is greater than the pair of left and right spacings g provided at the rear of the float 23 when viewed in the longitudinal direction of the fuselage. The left and right distance h is wider. The seedling plant 24 is adapted to plant seedlings at positions off the wheel marks of the rear wheel 4.

Therefore, in this transplanter, the left and right rear wheels 4, 4 are arranged in the left-right direction inside the left and right outermost seedling planting bodies 24, and the left-right direction outside the plurality of seedling planting bodies 24 on the left and right central sides. At a position that does not overlap the seedling plant 24, the transplanting part 12 is configured to have a relatively wide portion and a narrow portion where the lateral spacing of the seedling plant 24 is relatively wide, and
The left and right rear wheels 4, 4 are located in the left and right positions so as not to roughen the topsoil surface where the seedlings are planted, since the wide part of 24 left and right intervals is located inside the left and right rear wheels 4, 4 in the left and right direction. In order not to disturb the planting posture of the seedlings by mud pushing on the seedlings planted in the previous process, or to reduce the workability due to the large turning radius, place it in a position that does not overlap with the seedling planting body, The tread of the left and right rear wheels 4, 4 can be enlarged while satisfying the condition that the left and right rear wheels 4, 4 are arranged inward in the left and right direction from the left and right outermost end planting plants, and there is little variation in transplantation depth An aircraft having a machine configuration is obtained.

The first fertilizer 13 is provided on both left and right sides of the seedling to be transplanted in the transplanting part 12 with different distances and depths from the seedling.
It has a total of 12 fertilizer application lines, and a fertilizer hopper 25 for storing powdered and granular fertilizer is provided at the upper part, and it is intermittently driven by power via a fertilizer feeding link 20 at the lower part. A feeding part 26 for feeding the fertilizer in the hopper 25 downward by a predetermined amount, and a front and rear passage 27 where the fertilizer fed from the feeding part 26 falls.
An air chamber 28 that extends in the left and right direction and also serves as a frame is connected to the front of
A blower pipe 30 from a blower 29 communicates with a front portion of the blower 28.

A front end of a fertilizing hose 31 made of a flexible synthetic resin hose is communicated with a rear end of the front-rear passage 27, and the fertilizing hose 31 is connected to a first fertilizing hose 32 that is bifurcated halfway. A second fertilizing hose 33 is formed.
Fertilizing hoses 32, 33 are fixed at the lower part of the seedling support rod 34 supporting the upper part of the seedling mounting 22 of the transplanting part 12 from below,
The rear end of the fertilizing hose 31 is suspended from the upper end of the seedling mounting support rod 34 via a coil spring. In addition, fertilizer hose 32,3
Reference numeral 3 indicates that the lower end portion is shifted to the front and rear position and extends to the side position of the float 23. A fertilizing nozzle 35 is connected to lower ends of the fertilizing hoses 32 and 33, and a groove plate 36 is attached to a front side of the fertilizing nozzle 35. Here, the distance of the fertilization groove formed by the open groove plate 36 to the transplanted seedling, the depth of the fertilization groove, the amount of fertilization from the fertilization hoses 32 and 33, and the like can be changed.

The second fertilizer applicator 14 supports a fertilizer hopper 38 on a support frame 37 erected from the main body frame 21 at the rear of the transplanting part 12, and a feeding part 39 is provided below the fertilizer hopper 38.
And a seedling plant 24 via a fertilizer feeding link 40.
The fertilizer in the hopper 38 is fed downward by a predetermined amount in such a manner that the fertilizer is intermittently driven by receiving the power from the drive unit, and the fertilizer is applied from the third fertilizer hose 41 to the fertilizer groove opened by the groover 42. Like that.

Here, as shown in FIG. 2, first to third fertilizing hoses 32, 33, 41 with respect to the seedling placement position (transplant seedling) 24a.
The distances a, b, c from front to back to the fertilizing positions (fertilizing grooves) 32a, 33a, 41a to be fertilized have a relationship of a <b <c. Further, as shown in FIG. 3, the first to third fertilization grooves 32a, 33a, 41
The depths d, e, f of a are deeper in the order of d <e <f, and the depths are d = 5-6 cm, e = 10 cm, f = 15 cm, and the fertilization amount 43 is First to third fertilization grooves 32a, 33a, 41a
On the other hand, the fertilization amount is set to be larger as the depth is 32a <33a <41a and the distance from the transplanted seedling 24a is longer. In the drawing, the second fertilizer device
14 are located above the floats 23, and the third fertilizing hose 41 and the groove opener 42 penetrate the left and right floats 23, but these may be arranged at an intermediate position between the floats 23, 23. Good thing.

In the transplanting machine provided with the fertilizer application device having such a configuration, when the work is performed, the passenger traveling vehicle body 1 travels and is introduced into a field (paddy field) where seedling transplantation and fertilization work is performed. And
The transplanting part 12 is lowered by the elevating link 11 so that the float 23 is grounded. In this state, the passenger traveling vehicle body 1 is run, and at the same time, the transplanting part 12, the first fertilizer 13 and the second fertilizer 1
By operating each of the four, the transplanting operation of the seedlings and the fertilizing operation are performed at the same time.

At this time, in the riding traveling vehicle body 1, since the front wheels 3 and the rear wheels 4 are driven to travel in a four-wheel drive state, the vehicle can travel in a muddy soil such as a paddy field with almost no slip. The body 1 has an engine 5 mounted almost at the center and a transmission 1 at the front.
5. A rear wheel differential 16 and the like are provided. The first fertilizer 13 is located slightly in front of the rear axle of the rear wheel 4, and a lifting link is located behind it.
Since the transplant portion 12 and the second fertilizer device 14 are mounted via the 11, the balance of the machine body is good, and stable running and workability can be obtained.

In the transplanting section 12, the float 23 slides while touching the ground surface to level the field surface, and on the leveled rice field,
While the seedling-planting body 24 is rotating in a rotary manner, the seedlings are placed one by one from the seedling outlets 22a at the inclined lower end of the seedling mounting table 22 that reciprocates right and left while placing the seedlings, and are planted on the rice field. Further, since the transplanting portion 12 can be rolled to the left and right at the connecting portion with the lifting link 11, the transplanting portion 12 rolls independently of the passenger traveling vehicle body 1 in a state where the float 23 is in contact with the ground. There is no unevenness in seedling planting depth. When the passenger traveling vehicle body 1 pitches and the transplant portion 12 moves up and down via the elevating link 11, the central float 23 swings up and down with this up and down movement to switch the hydraulic switching valve and extend and retract the hydraulic cylinder 10. When the transplanting part 12 is moved up and down via the elevating link 11, the planting depth and the groove plate 36 of the transplanted seedling 24a to be planted by the seedling planting body 24 while keeping the contact pressure of the float 23 almost constant, The depth of the fertilization groove opened on the rice field by the vessel 42 becomes substantially constant.

In the first fertilizer 13, the powder / granular fertilizer contained in the fertilizer hopper 25 is intermittently fed downward by a predetermined amount by a feeding unit 26 and falls toward a front-rear passage 27. Blower 29-blower tube 30-blown backward by the pressure air from air chamber 28, fertilizing hose 31,
Fertilizing nozzle 3 through first and second fertilizing hoses 32, 33
5, from which fertilizer is applied to the fertilizer groove opened on the rice field surface by the groove plate 36, as shown in FIG. 3, at the lateral position of the transplanted seedling 24a. At this time, the distance a, b before and after the fertilization position (fertilization groove) 32a, 33a with respect to the transplanted seedling 24a is a <b, and the depth d, e of the fertilization groove 32a, 33a is deeper, The amount of fertilizer applied is deeper, and the transplanted seedlings
In the growth process, the roots absorb the fertilizer in the shallower fertilizer first and grow at an early stage, and then absorb the fertilizer in the deeper fertilizer for subsequent growth. Therefore, the fertilizing effect can be increased stepwise from the initial growth to the subsequent growth.

In the second fertilizer application device 14, a fertilizer feeding link is provided.
40 is driven intermittently to feed out the fertilizer in the hopper 39.
From the third fertilization hose 41 and fertilize the fertilizer into the third fertilization groove 41a opened by the groover 42. The fertilization depth f depends on the first and second fertilization grooves 32.
Since the depths d and e of the a and 33a are deeper and the fertilization amount is large, the transplanted seedling 24a absorbs the fertilizer 43 in the third fertilization groove 41a from the time when the fertilizer in the second fertilization groove 33a has been completely absorbed. And grow. Therefore, the transplanted seedling 24a can promote the growth while gradually absorbing the fertilizer from the initial growth to a considerably long period thereafter.

Next, FIGS. 4 (a) to 4 (d) show first to third
Of the fertilizing grooves 32a, 33a, 41a in the interval h between the multiple stripes and the interval g between the multiple stripes, and the amount of fertilization 43a, 43 respectively
The case where b and 43c are changed is shown. In the case of (a), the second fertilizing grooves 33a, 33a and the fertilizing amounts 43b, 43b are arranged within the interval h, and the first and third fertilizing grooves 32a, 32a, 41a, and the fertilizing amount 4 are set within the interval g.
3a, 43a and 41c are arranged. At this time, the second fertilization amount 43
The sum of b and 43b is set to be larger than the sum of the first and third fertilization rates 43a, 43a and 43c. In the case of (b), the second and third fertilizing grooves 33a, 33a, 41a and the fertilizing amounts 43b, 43b, 43c are arranged within the interval h, and the first fertilizing grooves 32a, 32a, Quantity 43a, 4
3a is located. At this time, the second and third fertilization rates 43b and 43
The sum of b and 43c is set to be much larger than the sum of the first fertilization rates 43a and 43a. In the case of (c), the first to third fertilization grooves 32a, 32a, 33a, 33a, 41a and the fertilization amounts 43a, 43a, 43b, 43b, 43c are all arranged within the interval h. Fertilization is not performed. In the case of (d), the first and third fertilizing grooves 32a, 32a, 41a and the fertilizing amounts 43a, 43a, 43c are arranged within the interval h, and the second fertilizing groove 33a and the fertilizing amount 43b are set within the interval g. Has been arranged. At this time, the sum of the first and third fertilization rates 43a, 43a, 43c is much larger than the second fertilization rate 43b.

The arrangement of the first to third fertilizing grooves 32a, 33a, 41a in the interval h between the multiple strips and the interval g in the multiple strips, and the amount of fertilization 43a, 43b, 43c are changed. Even in this case, the transplanted seedling 24a can promote the growth while absorbing each fertilizer step by step from the initial growth to a considerably long period thereafter.

In each of the above embodiments, the fertilizer 43a to be fertilized in the first fertilization groove 32a on the side close to the transplanted seedling 24a is a fast-acting fertilizer,
2nd and 3rd fertilization grooves 33a and 41a on the deep side far from the transplanted seedling 24a
The fertilizers 43b and 43c to be fertilized may be used as slow-acting fertilizers, or the first fertilization groove 32a may be abolished and fertilizers or chemicals may be sprayed on the field scene at this position. is there.

In addition, the present invention is not limited to the rice transplanter of the above embodiment, but can be similarly applied to, for example, a transplanter for vegetable seedlings and a transplanter for germinated seeds.

[Brief description of the drawings]

FIG. 1 is a plan view of an entire riding type rice transplanter provided with a fertilizer applicator showing an embodiment of the present invention, FIG. 2 is a side view thereof, FIG. 3 is a rear view of the working state, and FIG. (D) is a rear view of another working state. 1 ... traveling vehicle body 3 ... front wheel 4 ... rear wheel 12 ... transplanting part 24 ... seedling planting body

Claims (1)

(57) [Claims] 1. A rear side of a passenger traveling vehicle body 1 equipped with a pair of left and right front wheels 3,3 and rear wheels 4,4, four or more seedlings 24.
In the transplanting machine equipped with the transplanting part 12 arranged at intervals in the left-right direction, the left and right rear wheels 4, 4 The right and left outer sides of the planted seedlings 24 are arranged so as not to overlap with the seedlings 24 in the left and right direction, and the transplanting part 12 is provided with a relatively wide portion and a narrow portion where the left-right spacing of the seedlings 24 is relatively large. The transplanter is characterized in that it is configured so that the portion of the seedling plant 24 that has a wide left-right space is located inside the left and right rear wheels 4, 4 in the left-right direction.