JP2591585Y2 - Walk type rice transplanter float - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a float for a walking rice transplanter.

[0002]

2. Description of the Related Art Conventionally, as one form of a walking type rice transplanter, a float extending in the front-rear direction is arranged below a body,
At the front of the float, a transmission part installation hole is formed, which penetrates vertically, and the transmission part arranged at the front part of the aircraft is located just above the transmission part installation hole. There is a configuration in which the center of gravity of the fuselage is lowered by disposing the fuselage as low as possible so that the stability of the fuselage can be kept good.

[0003]

However, in the above-mentioned float of the walking type rice transplanter, when the seedlings are planted and run in the field of the soft soil, the mud on the surface of the field is filled with the holes for arranging the mission part. Through the top of the float
Mud accumulates on the upper surface of the float, and the sensing load for aircraft lifting by the float increases, and the float during sliding pushes the mud on the surface of the field to the side, and the posture of the planted seedling is changed. There was a problem of disturbing.

[0004]

Therefore, in the present invention, a float extending in the front-rear direction is arranged below the fuselage.
In a walk-behind rice transplanter in which a transmission part arrangement hole penetrating vertically is formed in the front part of the float and a transmission part arranged in the front part of the aircraft is located directly above the transmission part arrangement hole. A recess for arranging the mission portion at the front of the float, and a hole for arranging the mission portion vertically penetrating the recess for arranging the mission portion; Until the rear end of the float, a mud outflow groove extending along the bottom of the float is formed, and the transmission portion disposing recess is formed so that the left and right upper walls are formed in an upwardly convex arc shape, and It is an object of the present invention to provide a walking type rice transplanter float characterized in that the left and right side walls are formed by extending the inner end of the upper wall inward and inclining.

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

A shown in FIG. 1 is a walking type rice transplanter according to the present invention. In the walking type rice transplanter A, a motor unit 2 is mounted at the front of a body k, and a transmission unit 3 is mounted at the rear. Provided,
The upper portion of the motor unit 2 and the transmission unit 3 is covered with a bonnet 1, and a shaft case 4 extends rearward from a lower rear surface of the transmission unit 3.
5 is a transmission mechanism, 19 is a spare seedling mounting table, and N is a spare seedling.

At the rear end of the shaft case 4, a planting mission case 6 is continuously provided. The planting mission case 6 is connected to a pair of right and left seedling planting mechanisms 21 and 21 and has a handle stay. The handle stay 7 is formed to extend rearward and upward, and handles 8, 8 branched to the right and left sides are attached to the upper end, and a seedling support frame 9 is provided in the middle of the handle stay 7. The seedling table 10 of low front and rear height on which seedling mats for two rows can be placed is continuously provided.

At the rear end of the shaft case 4, as shown in FIG. 1, a column 15 is erected upward and rearward, and an upper end of the column 15 and a seedling mounted immediately behind the column 15 are provided. A traverse mechanism for traversing the seedling table 10 in the left-right width direction between it and the table 10
22 are interposed.

As shown in FIG. 1, a seedling vertical feed drive mechanism 20 is interposed between the horizontal feed mechanism 22 and the vertical seedling feed mechanism 23 attached to the lower rear wall of the seedling mounting table 10. ing.

The front ends of the swing cases 11, 11 are connected to the left and right sides of the transmission section 3 so as to be vertically swingable, and the left and right wheels 12, 12 are connected to the rear ends of the swing cases 11, 11 respectively. A swing adjusting mechanism 24 is interposed between the swing cases 11 and 11.

As shown in FIG. 1, a float 25, which also functions as a sensor, is mounted directly below the body k via a vertical link 26, 27 so as to be vertically movable.
In conjunction with the vertical movement of the float 25, the left and right wheels 1
The seedlings 2 and 12 are moved up and down via a swing adjusting mechanism 24 so that the seedling depth can be kept constant by the seedling planting mechanisms 21 and 21.

The swing adjusting mechanism 24 includes a hydraulic cylinder 28 for raising and lowering the wheel, which is mounted between the transmission unit 3 and the shaft case 4, and a swing unit having an intermediate portion mounted on a cylinder main body 28 a of the cylinder 28 so as to be able to swing back and forth. Moving arm 29 and swing arm
Interlocking rods 30, 30 interposed between the left and right ends of 29 and the left and right swing arms 11a, 11a, respectively, and a swing arm
29, and a swing hydraulic cylinder 37 attached to the front end of the cylinder body 28a.

In the above configuration, the gist of the present invention lies in the shape of the float 25, which will be described below with reference to FIGS.

That is, as shown in FIG. 1, the float 25 is formed in a hollow plate shape extending in the front-rear direction immediately below the body to a position substantially below the handles 8, 8 behind the front end of the body. As shown in FIG. 2 to FIG. 4, a recess 40 for arranging the transmission portion is formed in the front portion.
A transmission part arrangement hole 41 penetrating vertically is formed in the vehicle, and a transmission part 3 disposed in the front part of the fuselage is disposed immediately above the transmission part arrangement concave portion 40. axle
12a, rear half 25b of float 25 located behind 12a
The seedlings are formed narrower than the first half 25a, and the seedlings are planted by the seedling planting mechanisms 21, 21 at the left and right sides of the second half 25b.

Further, as shown in FIGS. 2 to 4, a mud outflow groove 42 extending from the rear end edge of the transmission portion arrangement hole 41 to the rear end of the float 25 is formed at the bottom of the float 25. ing. 25c is a front link connection, and 25d is a rear link connection.

In this way, when planting seedlings in a field of soft soil, the mud on the surface of the field is smoothly drained backward through the mud outflow grooves 42.

Therefore, there is no problem that the mud blows out from the transmission hole 41 to the upper surface of the float 25, and the float 25 can be smoothly slid on the field scene.

As shown in FIG. 4, the transmission unit recess 40 formed at the front of the float 25 has left and right upper walls 40b, 40b formed in an upwardly convex arc shape. The left and right side walls 40a, 40a are formed by extending the inner ends of the upper walls 40b, 40b inward and inclining.

In this way, even when mud flows into the left and right side walls 40a, 40a from below through the transmission portion arrangement holes 41, the inflow mud is inclined to the left and right side walls.
It flows down along 40a, 40a, and can smoothly flow backward through the mud outflow groove 42.

Accordingly, it is possible to prevent muddy soil that has flowed through the transmission hole 40 from being accumulated in the transmission portion concave portion 40, and to ensure a good sensing function of the float 25. Thus, it is possible to prevent the occurrence of a problem that the mud on the surface of the field is pushed laterally by the float 25 to disturb the posture of the already planted seedling.

Further, it is possible to prevent the occurrence of a problem that the operation of a rolling control pendulum (not shown) disposed immediately above the float 25 is regulated by the mud accumulated on the float 25, and the rolling control of the airframe is prevented. Can be satisfactorily secured.

FIG. 5 is an explanatory plan view of a float 25 as another embodiment. The float 25 is located behind the axles 12a, 12a of the left and right wheels 12, 12, in plan view. The left and right width d of the rear half 25b is formed to be narrower than the left and right width D of the front half 25a, and the rear side of the wheel 12 and the rear half 25 of the float 25 are formed.
A constant distance L is maintained between the first and second b.

In this way, the mud soil scraped up by the rear side of the wheel 12 is prevented from being put on the rear half 25b of the float 25, and by maintaining the float 25 in a good posture, The planting posture of the seedlings is ensured well, and the efficiency of seedling planting work can be improved.

[0024]

According to the present invention, the following effects can be obtained.

That is, since a mud outflow groove extending from the rear end of the transmission hole to the rear end of the float is formed at the bottom of the float, seedling planting is performed in a field of soft soil. When performing the above, there is no problem that the mud on the surface of the field is discharged to the rear of the float through the mud outflow groove and blows out to the upper surface of the float from the hole for arranging the mission part. You can run smoothly.

In addition, the transmission portion recess formed in the front portion of the float is formed such that the left and right upper walls are formed in an upwardly convex arc shape, and the inner ends of the upper walls are inclined inward and downward. When the mud flows into the left and right side walls from below through the transmission hole, the mud flows along the left and right side walls. And flows down smoothly through the mud outflow grooves. Therefore, it is possible to prevent the mud flowing in through the transmission hole for the mission portion from accumulating in the concave portion for the transmission portion, and it is possible to secure the float sensing function satisfactorily. Of the mud on the surface of the field can be prevented from being pushed laterally. As a result, the posture of the seedlings already planted can be favorably maintained, and the efficiency of the seedling planting operation can be improved.

[Brief description of the drawings]

FIG. 1 is a side view of a walking rice transplanter having a float according to the present invention.

FIG. 2 is an explanatory sectional side view of the float.

FIG. 3 is a bottom view of the float.

FIG. 4 is a front longitudinal sectional front view of the float.

FIG. 5 is an explanatory plan view of a float as another embodiment.

[Explanation of symbols]

 A Walk-behind rice transplanter 2 Motor unit 3 Transmission unit 4 Shaft case 12 Wheel 25 Float

──────────────────────────────────────────────────続 き Continuation of the front page (56) References Japanese Utility Model Showa 64-17117 (JP, U) Japanese Utility Model Showa 54-76223 (JP, U) Japanese Utility Model Showa 56-145914 (JP, U) (58) Field (Int.Cl. ⁶ , DB name) A01C 11/02 342

Claims (1)

(57) [Scope of request for utility model registration] 1. A float extending in the front-rear direction is provided below the fuselage, and a transmission portion mounting hole penetrating vertically is formed at a front portion of the float. In a walk-behind rice transplanter having a transmission section disposed directly above the fuselage, a transmission section recess is formed at the front of the float.
Mission part penetrating up and down through the recess for disposing the mission part
An installation hole is formed, and the rear edge of the transmission
Ri to the rear end of the float, and along a bottom portion of the float forming a mud outflow groove which extends, the transmission unit distribution設用recess, the left and right side upper wall upwardly
It is formed in a convex arc shape, and the inner end of each upper wall is
A walkable rice transplanter float characterized by having left and right side walls formed so as to extend in a downward slope .