JPH0545206B2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] This invention relates to a riding type rice transplanter for planting five rows.

[Prior art]

Traditionally, the riding type rice transplanter for 5-row planting was developed in 1974.
Although there is a device disclosed in Publication No. 25296, the seedling transplanting machine is not integrated, but is simply a combination of five planting machines for single-row planting, and has a configuration that is particularly effective for five-row planting. It wasn't something I did.

[Problem to be solved by the invention]

When configuring a 5-row seedling transplanting machine that is attached to the rear of a riding rice transplanter, when distributing the 5-row planting device to the left and right in the direction of travel, one row is used because of the odd number of rows. A fraction will appear. Where to place the planting device for one fractional row in relation to the other four planting devices (two rows each) is determined not only by the static left and right weight balance, but also by mechanical operation and other factors. The challenge was to arrange the plants so that the left and right balance was sufficiently satisfied in terms of planting accuracy.

[Means to solve the problem]

In order to solve the above-mentioned problems, the present invention provides a rice transplanter in which a seedling transplanting machine 9 for planting in five rows is attached to the rear side of a passenger vehicle body 1 via a connecting link 20.
The seedling transplanting machine 9 is provided with a main transmission case 10 , and sub-transmission cases 11 , 12 , 13 are fixed to the rear side of the main transmission case 10 and extend rearward. Two seedling planting devices 15, 16, 18, and 19 are provided on the rear end sides of the sub-transmission cases 11 and 13, respectively, which are fixed to the left side, and the left seedling planting devices 15 and 16 are The planting position is on the left side soil leveling float 27 when viewed from above.
The seedling planting devices 18 and 19 on the right side are arranged so that their planting positions are located on both left and right sides of the narrow part of the right side soil leveling float 28, A sub-transmission case 1 fixedly installed between the remaining left and right sub-transmission cases 11 and 13
One seedling planting device 17 is provided on the rear end side of 2, and the planting position of the seedling planting device 17 is at the center of the central soil leveling float 26 arranged at the center in the left-right direction in plan view. This riding-type rice transplanter is characterized by being placed in a rear recess.

〔Effect of the invention〕

By arranging two seedling planting devices 15, 16, 18, and 19 in the left and right sub-transmission cases 11 and 13, and by disposing one seedling planting device 17 in the central sub-transmission case 12. , the left and right balance is good in terms of mechanical vibrations generated by the drive of the seedling planting device. That is, when two planting devices 15, 16 (or 18, 19) are driven together for one sub-transmission case, compared to driving only one planting device 17, The generation of mechanical vibrations is large. Mechanically, the planting devices 15, 16, 18, 19, which drive two rows with large vibrations, are distributed in a well-balanced manner to both left and right ends, and the remaining planting device 17, which drives only one row with small vibrations, is placed in the center. As a result, the balance between left and right vibration generation is very good overall. In addition, along with this, the planting equipment for all rows will be changed to 1.
When driving with a regular planting drive shaft, a large load is applied to drive two planting device rows on both left and right ends of the shaft, and a small load is applied to the center side to drive one planting device row. The torsional load distribution on the planting drive shaft is also well balanced.

In addition, along with the above-mentioned configuration, a seedling planting device 15, which drives two rows each, is installed in the left and right sub-transmission cases 11, 13.
Side leveling floats 27 and 28 of the same shape are arranged on the left and right for 16, 18, and 19, and a central leveling float 26 is placed for the seedling planting device 17 that drives only one row in the central sub-transmission case 12. was placed in the center in a suitable shape, so three floats 2
6, 27, and 28 are arranged symmetrically with respect to the center in the traveling direction, and when the floats 26, 27, and 28 level the ground or slide, the muddy water flowing between these floats becomes a stable flow. As a result, the posture of the already planted seedlings will not be disturbed by the turbulent flow, and the float itself will be able to glide in a very straight line, improving the leveling of the ground.

〔Example〕

An embodiment of the present invention will be described in detail based on the drawings.

Reference numeral 1 designates a passenger vehicle body, which has a front wheel 2 for steering at the lower front side, a rear wheel 4 which is transmitted and rotated through a chain case 3 at the lower rear side, an engine mounted at the upper front side, and covered with a bonnet 5. , a control handle 6 is provided at the rear thereof, and a control seat 7 is further attached to the rear thereof via a supporting frame 8.

9 is a seedling transplanting machine for planting in 5 rows, and the planting part transmission case, which also serves as the frame, is fixed to the main transmission case 10 at the front by protruding rearward from both left and right ends of the main transmission case 10. It is composed of sub-transmission cases 11 and 13, and a sub-transmission case 12 that is similarly fixed to the center side between the sub-transmission cases 11 and 13 and protruding rearward. Reference numeral 14 denotes a seedling tank, which is supported on the main transmission case 10 with its front side facing upward, and is provided so as to be able to reciprocate from side to side.

Numerals 15, 16, 17, 18, and 19 are seedling planting devices, respectively. A seedling planting device 17 is provided on one side, and a crank and a swinging rod are attached to the sub-transmission case, and a planting claw fixed to the front end draws a loop-shaped seedling planting trajectory up and down. It is designed to operate according to the conditions. The seedling planting device 17 is provided so that its planting claws are located on the left-right center line of the seedling planting machine 9.

Reference numeral 20 denotes a connecting link, which is composed of an upper link 21 and a lower link 22. The bases of both links are pivotally connected to the support frame 8, and the rear parts are connected by a vertical link 23 to form a parallel link, which can be moved up and down as appropriate. It is linked to a hydraulic system etc. to enable this.

A rolling support shaft 24 projects rearward from a rolling transmission box 25 that is integrally provided with the vertical link 23.
The front part of the main shaft case 10 is rotatably pivoted to the main shaft case 10. The planting claw portion of the seedling planting device 17 is located on the axial extension line of the rolling support shaft 24, and the planting position a is located on the rolling center line A.

Reference numeral 26 denotes a central leveling float, and 27 and 28 side leveling floats, which are installed below the planting unit transmission case so that their front parts can move up and down with the rear part serving as a fulcrum. It is provided to level the soil surface in front of the planting position of the planting device. Further, the left seedling planting devices 15 and 16 are arranged so that their planting positions are located on both left and right sides of the narrow width portion of the left side soil leveling float 27 in plan view, and the right seedling planting devices 18 and 19 are arranged so that the planting position thereof is located on both left and right sides of the narrow width portion of the right side soil leveling float 28. Furthermore, a seedling planting device 17
is arranged so that its planting position is located in a concave portion behind the center of the center leveling float 26 arranged at the center in the left-right direction in plan view.

In addition, the symbols 29 in the figure indicate a transmission shaft, 30 an output pulley, and 31 an input pulley.

In the configuration of the above example, after the seedlings are placed and housed in the seedling tank 14, each rotating part is driven by the engine. Then, the passenger vehicle body 1 is moved forward to pull the seedling transplanting machine 9 side.

Then, the seedling transplanting machine 9 is towed by the soil leveling floats 26, 27, 28 floating on the topsoil surface of the field, and the seedling tank 14 moves back and forth horizontally to the left and right to transfer the loaded seedlings to each seedling planting device 15. ,16,17,18,
Supply to 19. The seedlings thus supplied are separated and held one by one by each seedling planting device, transported downward, and planted on the soil leveled by the leveling floats 26, 27, and 28. In this way, seedling planting work is performed.

An embodiment of the present invention configured as described above provides the following effects.

That is, two seedling planting devices 15, 16, 18, 19 are arranged in the left and right sub-transmission cases 11, 13, and a seedling planting device 17 is provided in the central sub-transmission case 12.
By arranging one unit, there is a good left-right balance in terms of mechanical vibrations generated by the drive of the seedling planting device. That is, when two planting devices 15, 16 (or 18, 19) are driven together for one sub-transmission case, compared to driving only one planting device 17, The generation of mechanical vibrations is large. The planting devices 15, 16, 18, and 19, which are driven by two mechanically vibrating rows, are distributed in a well-balanced manner to both left and right ends, and the remaining one, which has low vibrations, is distributed in a well-balanced manner.
Since the planting device 17, which drives only the rows, is placed in the center, the vibration generation as a whole has a very good balance between the left and right sides. Additionally, when all rows of planting equipment are driven by a single planting drive shaft, a large load is applied to drive the two rows of planting equipment on both left and right ends of that shaft, and the planting equipment is placed in the center. A small load is applied to drive one device. The distribution of torsional load on the planting drive shaft is also well balanced.

In addition, side soil leveling floats 27, 28 of the same shape are arranged on the left and right sides of the seedling planting devices 15, 16, 18, 19 that drive two rows each in the left and right sub-transmission cases 11, 13, and For the seedling planting device 17 that drives only one row in the sub-transmission case 12, the central soil leveling float 26 is arranged in a single central portion in a manner suitable for the seedling planting device 17, so that the three floats 26, 27, and 28 move in the advancing direction. The arrangement is symmetrical with respect to the center, and when the floats 26, 27, and 28 level the ground or slide, the muddy water flowing between the floats becomes a stable flow. As a result, the posture of the already planted seedlings will not be disturbed by the turbulent flow, and the float itself will be able to glide in a very good straight line, improving the leveling of the ground.

[Brief explanation of the drawing]

The figure shows one embodiment of the invention. Fig. 1: Side view of the embodiment, Fig. 2: Plan view of the embodiment, Fig. 3
Figure: A plan sectional view of the main part. Figure 4: A side view of the main part partially in section. The symbols in the figure will be briefly explained. 1: Passenger vehicle body,
9: Seedling transplanting machine, 10: Main transmission case, 11,
12, 13: Sub-transmission case, 15, 16, 17,
18, 19: Seedling planting device, 20: Connection link, 2
6: Center leveling float, 27, 28: Side leveling float.

Claims (1)

[Claims] 1 In a rice transplanter in which a seedling transplanting machine 9 for five-row planting is attached to the rear side of a passenger vehicle body 1 via a connecting link 20, the seedling transplanting machine 9 is provided with a main transmission case 10, and the main transmission case Sub-transmission cases 11, 12 and 13 are fixedly installed on the rear side of the main transmission case 10 and extend rearward, and two of them are installed on the rear end sides of the sub-transmission cases 11 and 13, which are fixed on both the left and right sides of the main transmission case 10. Seedling planting device 15, 16, 18, 1
9 is provided, and the left seedling planting device 15,1
6 is arranged so that its planting position is located on both left and right sides of the narrow width part of the left side soil leveling float 27 in plan view, and the seedling planting devices 18 and 19 on the right side are arranged so that their planting position is located on the right side side. One seedling is planted on the rear end side of the sub-transmission case 12 which is arranged to be located on both left and right sides of the narrow width part of the soil leveling float 28 and is fixed between the remaining left and right sub-transmission cases 11 and 13. A seedling planting device 17 is provided, and the seedling planting device 17 is arranged so that its planting position is located in a recess behind the center of a central soil leveling float 26 arranged at the center in the left-right direction in plan view. A riding rice transplanter characterized by: