JPH02308706A - Ground-leveling device for seedling transplantation machine - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a soil leveling body for a seedling planting machine that improves the ground leveling performance and the running stability of the city planting machine during seedling planting work. be.

[Prior art]

As a prior art of this kind, there is 5, Flow 1 to Structure of a paddy field working machine as shown in Japanese Patent Application Laid-Open No. 1-98408.

[Problems with conventional technology]

Flow 1- in the above conventional technology is that both the left and right branched ground contact parts are narrow, so the seedling transplanter cannot be properly supported, so both the left and right branched ground contact parts must be attached to the machine body. Moreover, the configuration is complicated, and the left and right branched ground contact parts are both narrow, making it impossible to stably support the aircraft body.

[Means to solve the problem]

In order to solve the above-mentioned problems, the present invention provides a soil leveling body 1 for a seedling planting machine in which an inner ground contact part 1a and an outer ground contact part 1b are formed on both sides of the seedling planting position A. A soil leveling body for a seedling planting machine, characterized in that the inner ground contact part 1a is longer than the outer ground contact part 1b, and the width of the inner ground contact part 1a is larger than the width of the outer ground contact part 1b, and the inner ground contact part 1a is mounted on the machine body. This is what I did.

〔Effect of the invention〕

In this invention, the inner ground contact portion 1a is configured to be longer than the outer ground contact portion 1b, and the width of the inner ground contact portion 1a is made longer than the outer ground contact portion 1b.
This is because the inner ground contact portion 1a is configured to be larger than the width of the inner ground contact portion 1a and attached to the fuselage.

Although the structure is simpler than that of the conventional example, the aircraft body can be stably supported by the left and right branched ground contact parts. Moreover, since the width of the outer ground-contacting part 1b is configured to be narrow, good il/i planting can be carried out without adversely affecting the seedlings inside and the already planted seedlings.

〔Example〕

DESCRIPTION OF THE PREFERRED EMBODIMENTS A riding-type seedling transplanter, which is an embodiment of the present invention shown in the drawings, will be described below.

Reference numeral 2 denotes a passenger-type traveling vehicle body, in which an engine 5 is mounted on the upper surface of the center portion in the longitudinal direction of the left and right frames 3 and 4 that constitute the body, and the left side of the engine 5 is fixedly connected to the left and right frames 3 and 4. The traveling mission case 6 is fixed with bolts, and the engine 5 and the traveling mission case 6 are in a so-called direct connection type configuration. The traveling transmission case 6 includes a transmission mechanism in which the rotational driving force of the engine 5 is changed by a transmission lever 7, and a front wheel differential mechanism.

8.8 is the left and right front axle case.

It is fixed to the left and right side portions of the traveling transmission case 6.

Reference numeral 9.9 denotes a left-right steering front wheel, which is attached to the lower part of the left and right front 1-axle cases 8, 8, and is steered by a steering handle 10, which will be described later.

Reference numeral 11 denotes a rear wheel drive case, which is fixed to the rear end portions of both the left and right frames 3.4, and left and right drive rear wheels 12.12 are mounted on both left and right sides thereof.

Reference numeral 13 denotes a transmission shaft that transmits power from the traveling transmission case 6 to the rear wheel intermediate case 11.

In the transmission mechanism inside the rear wheel drive case 11, left and right side clutches and left and right side brakes for the left and right rear wheels 12 and 12 are built-in. The left and right side clutches are disengaged and the left and right side brakes are activated by depressing the provided left and right clutch pedals 15 and 16. That is, the driving of the rear drive shaft 12.12 on the side where the left and right clutch pedals 15.16 are depressed is stopped, and the brake is applied.

17 is a car body cover molded by FRI),
A part of the engine cover that covers the periphery of the engine 5 and steps 14 provided in front and on the left and right sides of the engine 5 are integrally formed and fixed to the left and right frames 3° 41-.

Reference numeral 18 denotes a pilot's seat, which is attached to the second part of the vehicle body cover 17.

Reference numeral 19 denotes a preliminary seedling stand formed into a shallow box-like shape with a low plate and four side walls, the inner surface of which serves as a seedling holding part 20. is fixed to one end of the left and right spare seedling frames 21 and 21 to which the seedlings are fixed, and is configured such that the growing i'11+ box containing the seedlings can be placed on the sprouting section 20 therein.

Reference numeral 22 denotes a link mechanism composed of a partial link and a lower link, the base end of which is connected to the left and right frames ls3.
The rear end portion is pivotally connected to a vertical frame 27 provided with a rolling shaft 26 that supports the seedling planting device 25 in a rollable manner. .

Reference numeral 28 denotes a hydraulic cylinder device, and the base of the cylinder is pivotally connected to the rear side of the traveling missile case 6, and the rear end of the piston is pivotally connected to a swing arm 29 that is integrated with the upper link.

Reference numeral 30 denotes a front cover made of synthetic resin that covers the periphery of the handle post 10'', and is fixed to the upper surface of the front end of the step 14. A speed change lever 7 is provided.

31 is a main clutch pedal provided on the left side of the front cover 30.

The seedling planting device 25 includes a planting transmission case 32 that also serves as a frame that is mounted on the rolling shaft 26 of the vertical frame 27 so as to be able to roll freely, and a lower support member 33 and a part of -l provided on the planting transmission case 32. A seedling platform 35 that is supported by a support member 34 and reciprocates in the left-right direction of the machine, and a planting transmission case 3
Seedling planting device 36 is attached to the rear end of 2 and divides the samurai into individual plants from the lower end of the seedling stand 35 and plants them in the field.
...and the rear part is the shaft 3 at the bottom of the planting transmission case 32.
7, and its front part is composed of a central earth leveling float 38, left and right earth leveling floats 1, etc., which are earth leveling bodies mounted so as to be able to swing upward. The left and right leveling floats 1 are placed behind the left and right drive rear wheels 12 and 12, and level the field disturbed by the left and right drive rear wheels 12. It is installed to level the ground in front of the field where rice is to be planted.

39 is a hydraulic valve installed between the front upper surface of the central soil leveling float 38 and the planting transmission case 32, and the front part of the central soil leveling float 38 is held within an appropriate range by an external force. When the driving mission case 6 is turned on, the driving mission case 6
The pressure oil pumped out from inside is sent to the hydraulic cylinder 28 to project the piston and move the link mechanism 22 to -1-#1 to raise the seedling planting device 25 to a predetermined position. When the muscle has fallen below the appropriate range, the pressure oil in the hydraulic cylinder 28 is returned to the traveling transmission case 6, the link mechanism 22 is moved down, and the seedling planting device 25 is lowered to a predetermined position. When the front part of the soil leveling float 38 is within the appropriate range (seedling planting device 25
is in a proper predetermined position), the pressure oil in the hydraulic cylinder 28 is stopped from flowing in and out, and the seedling planting device 25 is held at a fixed position.

Reference numeral 41 denotes an operating lever protruding from the vehicle body cover 17 and provided on the right side of the driver's seat 8, which connects and disconnects power to the transmission shaft 42 provided in the traveling transmission case 6.
It is configured so that the power to the i'+7 planting device 25 can be controlled manually by operating the TO clutch, and the seedling planting device 25 can be manually lowered by operating the hydraulic valve 39. It is configured. That is, when the operating lever 41 is pushed forward, the PTO clutch is engaged, the seedling planting device 25 is driven, and the hydraulic valve 39 is switched by the vertical movement of the central soil leveling float 38 to enter an automatic control state. Conversely, when the operating lever 41 is pushed backward, the PTO clutch is disconnected, the operation of the seedling planting device 8 is stopped, and the hydraulic valve 39 is forcibly switched to the side that raises the seedling planting device 25 by 1 unit. Planting device 2
5 is raised. and.

When the operating lever 41 is moved to the middle position of its operating stroke, the PTO clutch is disengaged, the operation of the seedling planting device 25 is stopped, and the hydraulic valve 39 stops the flow of pressure oil into and out of the hydraulic cylinder 28 to maintain the seedling planting device 25 at a constant level. When the T-planting device 25 is switched to the position where it is held in the 1° position, the T-planting device 25 is moved to the operating lever 4.
The seedling planting device 25 is held at the position when the device 1 is operated to the intermediate position, and the seedling planting device 25 neither rises nor descends.

Reference numeral 42 denotes a recoil starter for starting the engine 5, and a knob 43 thereof is provided on the right side of the operating lever 41 on the outside of the vehicle body cover 17.

44 is a reinforcing frame provided between the rear side of the traveling transmission case 6 and the front side of the rear drive case 11.

45 is a differential lock pedal of a front wheel differential mechanism in the transmission system of the driving front wheels 9.9, and is provided in front of the engine 5.

Here, the central leveling float 38 and the left and right leveling floats 1.
1, its configuration and arrangement will be explained in detail.

The central soil leveling float 38 has a shape in which both left and right rear sides are notched in a plan view, and the seedling planting position A is located in the notch.

As mentioned above, the rear part is pivotally supported by #37, and the front part is attached to the planting transmission case 32 via the hydraulic valve 39 so as to be able to move up and down. Ground leveling parts 38a, 38a are formed on the ground.

The left and right soil leveling float 1 has an inner grounding part 1a and an outer grounding part 1b formed on both sides of the seedling planting position, and a ground leveling part 1c is formed in front of the seedling planting position A. The inner grounding part 1-a is longer than the outer grounding part 1b, and the width of the inner grounding part 1a is larger than that of the outer grounding part 1b. The attachment fixed to the "-" face of the inner ground leveling part 1a is pivotally supported on the body by a shaft 37 via a metal fitting 1d, and its front part is supported by a floating link 1e connected to the front upper surface. Planting transmission case 3
It is attached to 2 so that it can move up and down. Note that lb' is a fin-like plate provided on the grounding portion 1b, and is configured so that water can easily flow over its upper surface.

The riding-type seedling transplanter configured as described above is placed in the Mizuguchi field, and the seedlings are placed on the seedling stand 35.
・Place the seedling box containing seedlings on the recoil starter 4.
Pull the knob 43 of 2 to start the engine 5, and then turn the operating lever 4.
If you tilt 1 forward and drive each part to move the aircraft forward,
The seedling planting device 25 is automatically controlled up and down to an appropriate position and rice planting work is performed.

At that time, the left and right leveling float 1 has the inner ground contact portion 1a longer than the outer ground contact portion 1b, and the inner ground contact portion 1
Since the width 01 of a is configured to be larger than the width of the outer ground contact part 1b and the inner ground contact part 1a is attached to the fuselage, the left and right branched ground contact parts are good despite the simple structure. Furthermore, since the width of the outer ground-contacting part 1b is narrow, the planting process is less likely to have a negative effect on the seedlings inside and the already planted seedlings, making it easier to plant the seedlings. I can do it.

In addition, since the rear end of the outer ground contact portion 1b is shorter than the rear end of the inner ground contact portion 1a, it is possible to make a small turn when turning the aircraft, resulting in good workability.

In the above embodiment, the present invention is applied to a riding-type seedling transplanter in which the seedling-planting device 25 is attached to the rear of the riding-type traveling vehicle body 2. The present invention may be implemented in any type of seedling transplanter, such as a planter.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention, and FIG. 1 is a side view, FIG. 2 is a plan view, FIG. 3 is a plan view of the main part showing the operating state, and FIG. 4 is the S of FIG. 3. ,-S. The sectional view, FIG. 5, is the S, -S sectional view of FIG. The symbols in Figure 1 are as follows. 1... Ground leveling body (left and right leveling float) 1a...
Inner grounding part 1b...outer grounding part

Claims (1)

[Claims] (1) In the soil leveling body 1 for a seedling transplanter in which an inner ground contact portion 1a and an outer ground contact portion 1b are formed on both sides of the seedling planting position A, the inner ground contact portion 1a is configured to be longer than the outer ground contact portion 1b, and A ground leveling body for a seedling planting machine, characterized in that the width of the inner ground contact part 1a is configured to be larger than the width of the outer ground contact part 1b, and the inner ground contact part 1a is mounted on a machine body.