JPS6337772Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a float lock device for a rice transplanter equipped with a float.

In order to stabilize the propulsion of the rice transplanter while making the planting depth uniform, the propulsion wheels are attached to the rice transplanter so that it can move up and down, and the front part of the float can be moved up and down relative to the rice transplanter, centered around the planting rod. It is desirable to install it so that it can move freely.

However, conventional rice transplanters do not have a locking device for the floats, especially the side floats, so when the rice transplanter runs on the road, the front part of the float vibrates up and down due to running vibrations, producing noise. In addition, when the number of planting rows of a rice transplanter is increased, the width of the machine also increases, so the side float may come into contact with the bulge on the side of the farm road, or stones or pits on the road shoulder, causing damage to the side of the rice transplanter. There was a drawback that the float was damaged.

The present invention was devised in view of the above-mentioned circumstances, and its purpose is to use a seedling trace marker attached to the float to lock and hold the float in the raised position by retracting the marker. It is an object of the present invention to provide a float lock device for a rice transplanter which is configured to prevent abnormal vibration of the float and interference with stones, fences, etc. when traveling on the road.

The structure of the present invention will be described with reference to an embodiment shown in the drawings. 1 is a frame of a rice transplanter;
An engine 2 is mounted on the front part of the frame 1,
A planting device 3 is attached to the rear end. 4
is a propulsion wheel mounted on the frame 1 through a swing case 5 so as to be freely movable up and down, and the propulsion wheel 4 is rotationally driven by the engine 2.

Reference numeral 6 denotes a stay fixed to the front end of the swing case 5, and a first link rod 7 is pivotally attached to the outer end of the stay. The tip of the second link rod 9, which together with the first link rod 7 constitutes the bending link 8, is connected to the upper surface of the front end of the float 10 via a pin 11. 12 is the first above
A pin 13 connecting the link rod 7 and the second link rod 9 is a bracket interposed between the second link rod 9 and the float 10. Note that the rear end of the float 10 is connected to the frame 1 via a pin 14.
It is pivoted so that it can move up and down.

Numeral 15 is a seedling tracing marker attached to the upper surface near the front end of the float 10 with a thumbscrew or the like so that it can be rotated horizontally. When driving on the road, it is rotated forward and retracted. Further, a locking portion 16 for supporting a seedling tracing marker 15 is formed at the outer end of the stay 6. This locking portion 16, as shown in FIG.
Pin 17 that pivotally connects the first link rod 7 to the stay 6
A flat washer 18 and a wing nut 19 are attached to the tip of the holder, and a seedling tracing marker 15 is inserted between the flat washer 18 and the first link rod 7 and can be fixed. It is. The locking portion 16 is located above the front end of the float 10.

Next, the operation of the present invention constructed as described above will be explained. Now, when carrying out rice planting work in the field, as shown in Figure 2, by extending the seedling tracing marker 15 to the outside of the machine, the tip of the seedling tracing marker 15 is aligned with the adjacent row of seedlings that have already been planted. Position the aircraft.

On the other hand, when the rice planting work is completed and the rice is moved to another field, the seedling trace marker 15 is rotated forward. Then, lift the float 10, insert the seedling tracing marker 15 between the flat washer 18 and the first link rod 7, and tighten the wing nut 19 as necessary (see FIGS. 3 and 4). At this time,
Since the locking portion 16 is provided above the front end of the float 10, when the seedling tracing marker 15 is supported by the locking portion 16, the bending link 8 is bent as shown by the solid line in FIG. The front end of the float 10 is lifted and the front part of the float 10 is supported by the stay 6 via the seedling tracing marker 15, so that the float 10 is locked in the raised position. Therefore, when traveling on the road, the height of the float 10 above the ground can be increased, and free vibration of the float 10 can be prevented, so that traveling operability can be improved. Furthermore, since the seedling trace marker 15 is rotatably stored in the front, the width of the machine body when traveling on the road can be reduced.

Note that the locking portion 16 does not necessarily need to be composed of a flat washer 18 or the like; for example, as shown in FIG.
0, and the seedling tracing marker 15 may be inserted between the roll pins 20, 20.
Further, as shown in FIG. 7, when the seedling tracing marker 15 is provided with a protrusion 15', this protrusion 1
5' can also be used to stably engage and hold the seedling tracing marker 15 inside the first link rod 7 (see FIG. 8). Further, although not shown, when the seedling trace marker 15 is formed of a spring steel material, it becomes difficult for the vibration of the machine body to be directly transmitted to the float 10, so that the damage and vibration prevention function of the float 10 can be further improved.

In short, the present invention is a rice transplanter in which the rear part of a float is pivotally mounted to a frame so as to be movable up and down, and the stay fixed to the frame and the front part of the float are connected via a bending link so as to be movable up and down. In the machine, a seedling tracing marker is pivotally attached to the front part of the float so as to be horizontally rotatable and fixed, and a locking part is formed on the stay to support the seedling tracing marker rotatably stored in the front from below. Since the locking part is located above the pivot point between the bending link and the float, the seedling trace marker attached to the front end of the float can be used as a locking means to stably lock the float in the raised position. Therefore, it is possible to increase the height of the float above the ground when running on the road, and at the same time, it is possible to prevent abnormal vibration of the float and prevent damage to the float and noise from the float. This has an extremely useful practical effect that can significantly improve operability.

[Brief explanation of the drawing]

The drawings show an embodiment of the float lock device for a rice transplanter according to the present invention, in which Fig. 1 is an overall side view of the rice transplanter equipped with the present invention, and Fig. 2 shows the main parts during planting work. FIG. 3 is a side view of the main parts when running on the road, FIG. 4 is a plan view of a part of FIG. 3, FIG. 5 is a sectional view of the locking part, and FIG. 6 is the locking part. FIG. 7 is a perspective view showing a modification of the seedling tracing marker, and FIG. 8 is a plan view of the main part showing the locking state of FIG. 7. In the diagram, 1...frame, 6...stay, 8...
Refraction link, 10...Float, 15...Seedling trace marker, 16...Locking portion.

Claims (1)

[Scope of utility model registration request] A rice transplanter in which a rear part of the float is pivotally mounted to a frame so as to be movable up and down, and a stay fixed to the frame and a front part of the float are connected via a bending link so as to be movable up and down. A seedling tracing marker is pivotally attached to the front part so as to be horizontally rotatable and fixed, and a locking part is formed on the stay to support the seedling tracing marker rotatably stored in the front from below, and the locking part is connected to a bending link. A float lock device for a rice transplanter, characterized in that the float lock device is located above the pivot point between the and the float.