JPH04183309A - Rice transplanter - Google Patents

Abstract

PURPOSE:To enable ready maintenance of fields after transplanting without reducing the yield by making the interrow space wider than that in the conventional method and enabling a certain transplanting without an influence of muddy water waves generated from wheels, etc., even when the speed of transplanting and traveling is increased. CONSTITUTION:Plural bedplates 12 for placing seedlings, performing a reciprocating motion in the left and right direction are arranged mutually parallel in the left and right direction and the width for placing seedlings on the bedplate 12 for placing the seedlings is made about 30cm. In equipping transplanting units 18 for separating the seedlings placed on the bedplate one by one in order from the side end and for transplanting the seedlings to the ground surface of the paddy field thereunder, units for arranging the bedplates 12 parallel in the left and right direction are equipped leaving about 15cm space (L) between mutually adjacent bedplates for placing the seedlings so that the distance between the bedplates 12 may be about 45cm, i.e., 1.5 times the width for placing the seedlings, i.e., 30cm. The distance between the respective seedling-separating and transplanting parts of transplanting tools 21 of the left and right transplanting units 18 is made equal to the distance between the respective central positions of the left and right bedplates 12 so that the interrow space (M) between transplanted hills may be 45cm. Wheels 3 for traveling are attached to the front part in the wide interrow space (M) and, as the result, security of yield and ready maintenance of the paddy field are contrived.

Description

[Detailed description of the invention] Industrial applications This invention relates to a rice transplanter.

Conventional technology Planting seedlings with washed roots prior to 1960 From the era of rice transplanters that used washed seedlings to planting seedlings with soil grown in boxes Rice planting using seedlings with soil currently sold in the market after 1960 As a result, these seedlings with soil follow the traditional hand-planted rows that were most commonly planted in Japan, and the effective internal dimensions are 30 mm horizontally.
A seedling mat with soil grown in a seedling box measuring 60 cm long and 60 cm long was moved back and forth to the left and right by a width of 30 cm to ensure that the seedlings across the entire width were divided and transplanted.

Therefore, the row spacing that is transplanted with a conventional rice transplanter is.

Although there were some differences, it was basically 30 centimeters long.

Problems that the invention aims to solve Lately, there has been a call for liberalization of rice from other countries, and everyone has sensed that, as a trend of the times, even farmers cannot prevent this liberalization forever.

Therefore, small-scale farmers are already moving away from agriculture, even though they own land, and are now growing rice with agricultural contractors and sharing the profits raised from their fields with the contractors.

Amid these trends, contractors are increasingly demanding agricultural machinery that is ahead of its time.

Therefore, the question of what kind of rice transplanter is suitable for this trend is to make harvesting the same as before, but to make it easier to manage the field after rice planting, and to improve the efficiency of planting work.

Means for Solving the Problems The present invention, as a means of realizing a rice transplanting machine adapted to the above-mentioned times, includes a plurality of seedling loading tables 12 arranged side by side in the left and right direction on which seedlings are placed and which move back and forth laterally from side to side. The seedling loading table 12 has a width of approximately 30 centimeters, and is equipped with a transplanting device 18 that divides the placed seedlings one by one from the lateral edge and transplants them to the surface of the topsoil of the paddy field at the bottom. The means for arranging the seedling stands 12 side by side in the left and right direction is such that the width of the seedling stands 12 is 45 cm, which is about 1.5 times the width of 30 cm, which is the seedling width of the seedling stands 12. A space of approximately 15 centimeters is provided between the seedling stand 12 and the seedling split transplant body of the transplanting tool 21 of the transplanting device 18 in the left-right direction for transplanting in accordance with the distance between the left and right center positions of the seedling stand 12. The rice transplanter has a row spacing M of 45 centimeters, and a running wheel 3 is provided at the front part within this wide row spacing M.

Functions and Effects of the Invention According to this invention, seedlings grown on mats with soil using conventionally used seedling boxes can be grown using the 50-row spacing that has been followed for over 20 years since rice transplanters became practical. Furthermore, by expanding the row spacing, planting can be done reliably without being affected by muddy water waves caused by wheels or land-leveling floats, even when the traveling speed is more than twice that of the conventional method. Furthermore, it was previously said that sparsely planting by widening the row spacing by 50% would reduce yields, but in the case of rice transplanters, the transplanting speed of the transplanting device can be changed extremely easily with a variable speed device. Since the planting can be done densely in the direction of the rows, sparse planting can be prevented, and the yield is almost the same as in the past.In fact, because the row spacing is wider and there is better air circulation, the crops will not get sick and will grow with good sunlight. The test results showed that rice grains improved in quality, yielding good quality rice, and yields improved. Moreover, the row spacing is wide.

Post-transplant management becomes easier, as weeding machines can be easily operated.

Embodiment 1 is a passenger towing vehicle body, in which a pair of left and right steering wheels 2,
2 and a pair of left and right rear drive shafts 3, 3. A control frame is erected on the upper front side of the fuselage 4, and a handle 5 is mounted on the upper part of the control frame.
An engine 6 is mounted in the front and rear intermediate portions, and a cockpit 8 is provided above a cover 7 that covers the engine 6.

Reference numeral 9 denotes an elevating link mechanism to which a working machine is attached, and is attached to the rear portion of the vehicle body 1.

Reference numeral 10 denotes a rice transplanter, which is attached to the elevating link mechanism 9, and is a four-row transplant type rice transplanter when rotated.

To explain the specific configuration, reference numeral 11 denotes a main planting transmission case located at the left and right center, and transplanter attachment cases lla and l extending rearward from this case 11 at a fixed distance from the left and right.
lb is provided.

Reference numeral 12 denotes a seedling mounting stand, which is installed at the top of the main planting transmission case 11 in an inclined state with the front side facing upward so that the seedlings can be placed on it and the seedlings can be moved back and forth from side to side.
．． 14 is a horizontally moving port■It is attached to the Noh, case 11
It is configured to be opened via a connecting arm 16 from a moving shaft 15 that projects in the lateral direction and is operated by a left-right reciprocating mechanism inside.

Reference numeral 17 denotes a seedling receiving frame, which prevents the seedlings placed opposite the open lower part of the seedling platform 12 from slipping off, and has a split opening (a) for feeding the seedlings to the transplanting tool. ,(stomach)
. . . to form the transplant device attachment case lla,
llb in bridging form.

18 is a transplant device, and is the case 11a.

The transplant device 21 is attached to the outer side of a rotary case 20 which is provided on both left and right sides of the transplant drive shaft so as to be rotated at the distal end side of a cover tube 19 that encloses the transplant drive shaft. A seedling dividing transplant body 21a attached to the transplanting tool 21 is configured to intervene from above into the dividing opening (A) of the seedling receiving frame 17, divide the seedlings, and transplant them to the field area below. .

The effective seedling loading width for one seedling loading table 12 is approximately 30 centimeters, and a wide partition space is provided between adjacent seedling loading tables 12. This space is set to approximately 15 cm, and for this purpose, the planting using the transplanting tool 21 is configured such that the row spacing M is 45 cm, which is 30 cm plus 15 cm. There is. Moreover, the quick-acting front wheels 2, 2 and the rear wheels 3.3 of the vehicle body 1 are located at the left and right center portions on the front side of the strip spacing M.
is located.

Reference numeral 22 denotes a central float, which is located at the lower part between the left and right sides of the rice transplanting device 10, and projects forward from the case 11 so that the rear part is pivotally supported on the case 11 side by a horizontal shaft and the front part moves up and down. It is attached to the protrusion frame 23 with a link 24. A hydraulic valve 25 is interposed between the front side of the float 22 and the protrusion frame 23, and the vertical movement of the float 22 controls the hydraulic device 31 that controls the operation of the elevating link mechanism 9. The rice transplanting device 10 is configured to be raised and lowered automatically depending on the depth.

Reference numeral 26 denotes a float for leveling the ground in the seedling planting section, the rear part of which is pivotally connected to a vertically adjusting rotating arm 27, and the front part attached to the case 11 with a link 28 so that it can be moved up and down. The bottom surface of the float 26 is provided with a groove cutter 29 for lateral fertilization to apply fertilizer to a shallow position from the topsoil surface and a groove cutter 30 for deep layer fertilization to apply fertilizer to a deep position.

32 is a fertilization device, and supports 3 are attached to the cases lla and llb.
3 is installed vertically, and the fertilizer storage hopper 34.
Feeding device 35. It is made up of flow pipes 36a, 36b and a blow pipe 39 that blows air through an air reservoir 38 from a blower 37 to prevent clogging in the flow pipes.

To explain the operation of the upper side, while traveling in a paddy field with a riding-type towing vehicle body 1, it tows a rice transplanter 10, which is a working machine attached to the rear, and transmits power to the rice transplanter 10 side. Then, seedling stands 12, 12. The lower end of the mat seedlings loaded with soil is stopped by the seedling receiving frame 17, and the seedlings are moved back and forth from side to side, and the lower end side seedlings are sequentially moved to the seedling dividing opening (a),
(b),... is brought out. Then, the seedlings that are fed out are divided by the transplanting tool 21 of the transplanting device M18 and transplanted onto the leveled soil surface by the side floats 26 and 26. Further, at the same time as this transplantation, the fertilization device 32 applies fertilizer shallowly near the planting rows, and deeply fertilizes the center between the rows on the left and right sides.

In this way, seedling transplantation is carried out, but the central float 22 moves upward due to changes in the ground pressure due to changes in the depth of the paddy field, and the hydraulic valve 25 is switched to control the hydraulic system.
The entire rice transplanter 10 is raised and lowered so that the ground pressure is always appropriate.

In addition, this rice transplanter has a row spacing M of 45 cm, which is unprecedentedly wide, so even if mud is pushed by the float or mud is carried around by the rear wheels, the row spacing is 45 cm. There are no widespread adverse effects.

For this reason, the transplanted seedlings can be reliably transplanted without being covered with muddy water by running the transplanting operation at double the conventional transplanting speed. Furthermore, even if the row spacing M is 150% wider than that of a conventional rice transplanter, if the distance between the plants to be transplanted in the front-back direction is narrowed, transplanting can be achieved at the required density, and no reduction in yield will occur.

Front wheels for running 2, 2. Since the rear wheels 3.3 are arranged, the lug width of the wheels 3,3 can be made considerably wide to increase the traction force, and the running in the rice fields is extremely stable.
Can increase running speed.

In addition, during growth after transplantation, the row spacing is wide, so the weeding machine can be run between the rows, making various management operations easier.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention, and FIG. 1 is a side view, and FIG. 2 is a partially simplified plan view of the main parts. In the figure, symbol 3 is a running wheel, 10 is a rice transplanter, 12 is a seedling stand, 18 is a transplanting device, and 21 is a transplanting tool.

Claims (1)

[Claims] A plurality of seedling stands 12 on which seedlings are placed and moved back and forth laterally from side to side are arranged side by side in the left and right direction, and the width of the seedling stands 12 is approximately 3.
0 cm, and a means for arranging the seedling platforms 12 in parallel in the left-right direction is provided with a transplanting device 18 that sequentially divides the placed seedlings one by one from the lateral edge and transplants them to the top soil surface of the paddy field at the bottom. is approximately 1.5 cm between adjacent seedling mounting stands 12 so that the width of the seedling mounting stands 12 is 45 cm, which is approximately 1.5 times the width of 30 cm, which is the seedling mounting width of the seedling mounting stands 12.
A spacing L of 5 cm was provided, and the spacing in the horizontal direction of the seedling split transplants of the transplanting tool 21 of the transplanting device 18 was adjusted to the spacing between the left and right center positions of the seedling platform 12, so that the row spacing M of the transplanted plants was 45 cm. This rice transplanter has a running wheel 3 at the front part within the wide row spacing M.