JP2552521Y2 - Side float vertical adjustment device - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in a float height adjusting structure of a rice transplanter.

[0002]

2. Description of the Related Art In a conventional rice transplanter, a horizontal control sensor, an acceleration sensor, and the like are provided in a planting device, and a hydraulic cylinder or the like that operates in accordance with the signal is provided to control left and right rolling. Is known. In the case of such a planting device, even without a side float, it is possible to prevent a lateral swing or a change in a front-back inclination angle, and to perform stable planting. At the time of planting, the side float is unnecessary. In a hard field or on a headland, a side float is necessary to eliminate the wheel marks and level the ground.

[0003]

[Problem to be Solved by the Invention] However, when the float is mounted, the "muddy water pushing" by the float occurs in the operation in the soft field or at the time of high speed, especially when the side float is mounted. However, planted seedlings are adjacent to the side floats, and muddy water is placed on the adjacent seedlings, causing the planting posture to collapse, fall down, or become floating seedlings. It will happen. For this reason, at the time of high-speed planting work in a soft field or the like, it is desirable to remove the side float from the rice field and to ground the side float in a hard field or on a headland, so that the height of the side float can be easily switched. Rice transplanters were desired.

[0004]

The object of the present invention is as described above, and has the following structure in order to achieve the object. In a rice transplanter, a center float and a side float are supported and connected by independent support members, and the height of the side float from the rice surface can be arbitrarily changed separately from a predetermined height of the center float.

[0005]

Next, the operation will be described. The side float height adjustment lever and the planting depth adjustment lever are connected to the independent side float mounting part and the center float support rod, respectively. In hard fields and headlands, the side float height adjustment lever is planted and the depth adjustment lever is used. The center float and the side float can be adjusted at the same time to allow leveling work.In soft fields, the side float height adjustment lever is planted and detached from the depth adjustment lever. Can be lifted up and work can be performed using only the center float, so that the pushing of muddy water does not cause damage to adjacent seedlings.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The purpose and structure of the present invention are as described above.
Subsequently, the embodiment shown in the attached drawings will be described. FIG. 1 is a side view of a rice transplanter having a float structure according to the present invention, FIG. 2 is a plan view showing a configuration of a float portion F, FIG. 3 is a side view of a planting portion, and FIG. It is a top view which shows the lever guide structure of the adjustment lever 6.

The overall structure of the rice transplanter will be described with reference to FIG. The rice transplanter in the figure is a riding type, and a planting device B is attached to the rear of the traveling section A so as to be able to move up and down. The planting apparatus B mounts the seedling mounting table 9 on the planting mission case 8 so as to be reciprocally slidable left and right, and arranges a planting claw 10 at the rear of the planting mission case 8 so as to be rotatable. The float portion F having the structure of the present invention is arranged below the case 8 so that the planted seedlings are placed on the seedling mounting table 9 during the planting operation. The planting claw 10 is rotated in synchronism with the left and right reciprocation to cut out a certain amount of seedlings and to plant the seedlings in the field leveled by the float.

The structure of the float F of the present invention will be described with reference to FIGS. The float support rod 1 is pivotally supported by a support 11,11 which is fixed to the planting transmission case 8 and rotatably extends between the support 11 and the float support rod 1. Fitted support pipe 4
Are provided, and side float support pipes 12L and 12R are externally fitted to both ends of the float support rod 1, and pins 13 are penetrated and fixed to the float support rod 1 and the support pipe 12, and left and right side floats 3L are provided.・ 3R can be raised and lowered in parallel at the same time. And the support pipe 4
The support rod 4a protrudes obliquely rearward and downward from the center, and a support part 2a provided at the center of the center float 2 is suspended, and the support rod 12a is obliquely rearward and downward from the support pipes 12L and 12R.
12a is projected, and the support parts 3a provided at the center of the side floats 3L and 3R are suspended.

On one side (left side) of the center float 2, a planting depth adjusting lever 5 projects forward and upward, and is also provided on the support pipe 12L of the side float 3L in parallel with the planting depth adjusting lever 5. The side float height adjustment lever 6 is protruded, and the center float 2 and the side floats 3L and 3
R can be independently rotated by the rotation of the planting depth adjusting lever 5 and the side float height adjusting lever 6. The side float height adjusting lever 6 is divided at an intermediate portion, and the connecting member 6a
4, a torsion spring 6b is mounted on the pin 14, and the connecting member 6a is urged to rotate toward the planting depth adjusting lever 5 side. The side float height adjusting lever 6 has a handle protruding from the connecting member 6a so that the handle can be fitted to the base of the planting depth adjusting lever 5. The tip of the float height adjusting lever 6 is the transmission case 15
It is inserted into the lever guide 7 fixed to the.

As shown in FIG. 4, the lever guide 7 has a lever hole 7c of the planting depth adjusting lever 5 and a lever hole 7a of the side float height adjusting lever 6 formed in parallel. Is further provided with a lever hole 7b on the side,
In the lever holes 7c and 7a, both levers 5 and 6 rotate simultaneously, and the side float height adjusting lever 6 is moved to the lever hole 7b.
When the connecting member 6a is turned, the connecting member 6a is disengaged from the planting depth adjusting lever 5, and both can be turned independently.

The float portion F is provided with a hydraulic cylinder that is activated by a signal from a sensor because the float portion F rolls and the front and rear inclination changes at the time of work. The attitude control is being performed. Therefore, even if the planting operation is performed using only the center float with the side float removed, no lateral sway or the like occurs.

In the planting apparatus B whose posture is controlled as described above, when the planting depth adjusting lever 5 and the connecting member 6a are connected, the planting depth of the seedling is adjusted by operating the planting depth adjusting lever 5. Center float 2 and side float 3
The height of the L.3R is changed, and the connecting member 6a is normally connected to the planting depth adjusting lever 5 by the return force of the torsion spring 6b and rotates integrally, so that the center float 2 and the side float 3 can be simultaneously moved. It is possible to go up and down. When the side float adjusting lever 6 is rotated into the lever hole 7b of the lever guide 7, the connecting member 6a is disengaged from the planting depth adjusting lever 5, and the side float 3 is pulled up to the uppermost position. As a result, only the center float 2 can be rotated, so that only the center float 2 can be adjusted in height by the planting depth adjusting lever 5, and the planting depth can be adjusted.

Therefore, in a hard field or headland,
The side float height adjusting lever 5 is positioned in the lever hole 7a of the lever guide so that the center float 2 and the side float 3 can be adjusted at the same time, and the planting depth is adjusted while leveling and erasing wheel marks. Work. When working in a soft field, the side float height adjusting lever 5 is connected to the lever hole 7 of the lever guide.
Then, the side float 3 is pulled up to prevent the muddy water from being pushed, and only the center float 5 is planted by adjusting the height with the planting depth adjusting lever 5.
The height of the side float can be adjusted not only by the above-described elevation by the lever but also by a structure in which one or more side floats are elevated by a motor drive or a hydraulic drive.

[0014]

Advantages of the Invention The present invention has the following effects due to the above configuration. That is, in a hard field or headland, the side float can be operated integrally with the center float, and has the same operation and function as the conventional side float, and has functions such as leveling and wheel mark erasing, and is soft. In a field, the installation height of the side floats on both sides can be changed separately from the center float by operating one lever, so that the planting depth does not change (without changing the center float height). In addition, only the side float can be floated from the rice field, and the occurrence of mud pushing and water pushing by the side float can be prevented. Therefore, there is no influence on the planting posture of adjacent seedlings at the time of high-speed planting.

[Brief description of the drawings]

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

FIG. 2 is a plan view showing a configuration of a float F.

FIG. 3 is a side view of a planting section.

FIG. 4 is a plan view showing a lever guide configuration of a planting depth adjusting lever 5 and a side float height adjusting lever 6.

[Explanation of symbols]

 F Float part 2 Center float 3 Side float 5 Planting depth adjustment lever 6 Side float height adjustment lever 6a Connecting member

Claims (1)

(57) [Scope of request for utility model registration] In a post-planting riding rice transplanter, the center float and the side float are supported and connected by independent support members, and the height of the side float from the rice surface is arbitrarily changed separately from the predetermined height of the center float. An up / down adjustment device for a side float, wherein the device is configured to be capable of being used.