JP3380041B2 - Rice planter side float - Google Patents

Description

Detailed Description of the Invention

[0001]

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

[0002]

2. Description of the Related Art Conventionally, a center float is hung in the center and side floats are hung on both left and right sides below the planting part of a rice transplanter such as 5-row planting or 6-row planting. Float in the field, smooth running and planting, level the field prior to planting, in addition, the side float is arranged behind the wheels of the front running vehicle,
It had a wheel erasing function. In this side float support structure, a float rotation shaft is laterally provided in the left-right direction below the planting portion, and the vicinity of the center of the float is hung by using a planting depth arm extending from the rotation shaft as a fulcrum. In addition, the front part was hung by a lifting tool having a spring so as to be pulled upward.

[0003]

However, in the conventional side-float suspension structure, since it is hung up by pulling it up with the lifting tool, in a hard field,
Since there is no downward pressure on the front part of the float, the front part is pushed up, and the rear part sinks in the opposite direction, which reduces wheel erasing and ground leveling effects, and also changes the planting depth. In addition, when the side-row fertilizer applicator is installed in the rice transplanter, the groove is attached to the float, but if the resistance of the groove to be inserted into the field is applied, the front part of the float will be pushed further upward. . When a strong pressing force is applied to or fixed to the front part of the float in order to eliminate such lifting of the front part of the float, mud pressing occurs at the front part of the float, which causes a harmful effect on the adjacent planted seedlings. Also, in order to adjust the float height when changing the planting depth, when the float pivot shaft is rotated to rotate the planting arm, when raising the height of the float for deep planting, the front part of the float becomes As the rotation fulcrum moves upward, it hangs downward, which causes mud pushing.

[0004]

The present invention uses the following means in order to solve the above problems. That is, the center float in the center below the planting part of the rice transplanter,
Side floats are arranged behind the wheels on both sides of the wheel, and the float is supported at the rear end of the planting arm extending from the float rotation axis, and a stopper link is provided on the body side of the planting part above the rear support of the side float. One end of the stopper link is projected, the stopper link is projected forward and downward, and the stopper link and the implantation depth arm are engaged with each other at midpoints so that the position can be changed, and the side float is lowered at the front portion of the stopper link. A pressing body that presses against is provided.

Further, the stopper link is interlocked with the rotation of the implantation depth arm, and a downward rotation regulating member is provided on the front part of the side float, and the regulating member is arranged so that the tip of the stopper link faces the side member. It was configured to stop the front hang of the float in a horizontal position.

Further, a wire end portion is connected to one end of the pressing body, and a push / pull position adjusting member is provided at the other end of the wire.
The pressing force of the pressing body can be changed.

[0007]

[Function] The front part of the side float is pressed downward by the pressing body, eliminating the adverse effect of pushing up the front part, and the pressing force is adjusted by pushing and pulling the wire to push the mud. It can be adjusted to the extent that does not occur. Further, even when the planting depth is changed, the stopper link always restricts the downward rotation of the front part of the side float to a certain position, so that the mud pushing due to the front part drooping is eliminated.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, the structure of the present invention will be described based on the embodiments shown in the accompanying drawings. FIG. 1 is a schematic side view of a planting part of a rice transplanter equipped with the side float of the present invention, FIG. 2 is a side view showing a suspension mechanism of the side float of the present invention, and FIG.
Is also a plan view, FIG. 4 is a side view of the pressure adjusting lever, and FIG.
Is a bottom view, and FIG. 6 is a front view.

A suspension mechanism of the side float in the planting portion will be described with reference to FIGS. 1 to 3. In the planting section, the seedling mounting table 11 is supported by the rail member so as to be able to move laterally, but the left and right side frames 10, 10 supporting this rail member are extended downward so that A suspending pin 9 protruding near the lower end is fitted in a long hole of the suspending tool 6 to suspend the suspending tool 6 in a vertically slidable manner. The lower end of is pivotally connected to a front rotation stay 1c fixed to the front of the side float 1. If a side-row fertilizer applicator is installed, the grooving device 1
5 are fixed to both sides of the float 1.

Further, below the planting portion, a plurality of planting chain cases 7 each having a planting claw at the rear portion are arranged in the front-rear direction. 2 is rotatably provided laterally, and can be rotated by a rotation operation of the implantation depth adjusting lever 8, and the lever is fixed at a predetermined position. At the center of the float rotation shaft 2, a center float (not shown) is hung via a link, and the float sensor S detects the rotation of the front portion of the center float to drive the lifting mechanism of the planting portion. , The planting part is corrected to an appropriate vertical position. Then, at the left and right positions of the planting part, the vegetation depth arms 3, 3 are provided behind the float rotation shaft 2, and the vegetation depth arm 3 is operated by operating the vegetation depth adjustment lever 8. It rotates together with the rotation of the float rotation shaft 2.

A rear rotating stay 1a fixed to the rear of the side float 1 is pivotally connected to the rear end of the implantation depth arm 3. On the front of the float 1 of the rear pivot stay 1a is a front view gantry comprising a regulating member wire attachment stays 1b
The bottom of is fixed. The upper end of the wire attachment stay 1b, fixing the outer wire pressing regulatory wires W, the front
Inside the Mimon type wire attachment stays 1b is protruded to the inner wire, the lower end of the inner wire is connected to the spring 5 is a pressure body to the lower side float 1. The spring 5 is a spring that generates an urging force by pulling.
Is the spring 5 pulled with an inner wire?
Et al., In the direction of the force to be compressed, solid wire attachment stays 1b
Urged downward in the direction of the spring connecting portion 4b in a fixed state
However, the front part of the side float 1 is pressed downward.

On the other hand, at the lower end of the planted chain case 7,
Dude, are pivotally supported by a pivot shaft 4d of the rear end of the stopper link 4. The stopper link 4 is formed with a long hole 4c on its side surface, and an interlocking pin 3a protruding from the implantation depth arm 3 is fitted therein. Normally, the implantation depth arm 3 is fixed by a implantation depth adjusting lever 8 portion. However, the stopper link 4 is engaged with the vertical movement of the side float 1 by fitting the interlocking pin 3a.
However, it is fixed so that it can not rotate. The front end of the stopper link 4, have a pressing portion 4a in plan view L-shape, further projecting spring coupling portion 4b, it is connected to the lower end of the spring 5. In other words, the spring 5 is interposed between the inner wire ends of the pressing adjust the wire W and the front end of the fixed shaped stopper link 4, the wire attachment stay 1b,
The front portion of the side float 1 is pressed downward by the pulling force downward in the direction of the spring connecting portion 4b in the fixed state . There is no pushing up.

On the contrary, when the front part of the side float 1 is rotated downward and the wire mounting stay 1b is sunk downward, the pressing part 4 is located below the upper surface of the wire mounting stay 1b.
The upper end of a is pressed and stopped at a horizontal position to regulate the movement of the wire mounting stay 1b. Furthermore,
When the float rotation shaft 2 and the implantation depth arm 3 are rotated by operating the implantation depth adjusting lever 8, the stopper link 4 slides in the elongated hole 4c by the interlocking pin 3a so that the implantation depth is increased. Along with the rotation of the arm 3, it rotates about a pivot point of the planted chain case 7 as a fulcrum, and the vertical position of the pressing portion 4a is adjusted so that the downward rotation of the side float 1 is always stopped at the horizontal position. Front of the wire mounting stay 1b at the fixed position
The lower side of the upper end of the viewport type is configured to press against the pressing portion 4b. In this way, the situation in which the front part of the side float hangs down due to the planting depth adjustment and the like, and the adverse effect of mud pushing accompanying it is eliminated.

Next, a mechanism for adjusting the downward pressing force of the side float 1 will be described. As described above, the side float 1 is pressed downward by the spring 5 so that the front part thereof has a certain degree.
It is not possible to go up above, and it is possible to ensure the effect of erasing the marks on the wheels, but if the downward pressing force is too strong, mud pushing by the front part of the float will occur, so it will be appropriate due to the hardness of the field. It is necessary to be able to adjust the pressing force. The adjustment of the pressing force is based on the inner wire pushing / pulling adjustment of the pressing adjustment wire W whose end is connected to the spring 5, and the pushing / pulling adjustment is performed one by one on the left side in front of the upper part of the seedling stand 11. That is, the left and right pressure adjusting levers 12 are arranged corresponding to the left and right side floats 1.1.
Can be adjusted independently by operating.

That is, the pressure adjusting lever 12 is shown in FIG.
As shown in FIGS. 5 and 6, via a bracket 14c, a boss 14a rotatably attached to a lever rotation shaft 14 provided laterally on a lever mounting stay 13 fixedly mounted on the seedling placing table 11 is mounted via a bracket 14c. The pressure adjusting lever 12 is connected to the lever mounting stay 1
3 along the lever guide 13b provided on the bracket 1
4c is pivotally supported so as to be rotatable in the left-right direction, and is biased by a spring 12b toward a fitting side (leftward in FIG. 6) provided in a plurality of stages so that the bracket 14c can be fixed at a desired position. The lever rotation shaft 14 can be rotated vertically. Further, a wire stay 14b is projected rearward from the boss 14a, an inner wire upper end of the pressure adjusting wire W is fixed to the wire stay 14b, and an outer wire upper end of the pressure adjusting wire W is It is fixed to an outer receiver 13 a arranged below the lever mounting stay 13. Therefore, when the pressing adjustment lever 12 is rotated up and down, the wire stay 14 is rotated.
b is rotated up and down, the inner wire of the pressure adjusting wire W is pushed and pulled, and the tension of the spring 5 is changed,
As the spring 5 is pulled, the compressive force of the spring 5 increases and the pressing force increases. It is also possible to compress the spring 5 as much as possible to eliminate the tension and to substantially push up the front part of the side float 1.

[0016]

Since the present invention is configured as described above, it has the following effects. That is, since the pushing up of the front part of the side float is regulated by the downward pressing of the pressing body as in claim 1, the front part of the side float is pushed up and the rear part is sunk even in a hard field, and the effect of erasing the wheels is eliminated. The harmful effects of diminishing and messing up the vegetation have been resolved,
On the other hand, the restriction of downward rotation by the stopper link eliminates the situation where the front portion of the side float hangs downward to cause mud pushing.

According to the second aspect of the invention,
Regardless of the planting depth, the front part of the side float is restricted by the stopper link and does not descend downward from the horizontal position, and the adverse effects such as mud pushing due to the sag of the front part of the float do not occur.

According to the third aspect of the present invention, the pressing force of the pressing body to the side float downward can be adjusted, and the side can be pushed to the extent that mud pushing does not occur depending on the difference in hardness and softness in the field. The float can be pressed downwards.

With the above-mentioned structure, the side of the rice transplanter is not affected by the difference in hardness and softness of the field and the planting depth, and has the effect of erasing the marks of the wheels, the ground leveling effect, and the excellent effect of maintaining a good planting condition. The float can be provided.

[Brief description of drawings]

FIG. 1 is a schematic side view of a planting part of a rice transplanter equipped with a side float of the present invention.

FIG. 2 is a side view showing the suspension mechanism of the side float of the present invention.

FIG. 3 is a plan view of the same.

FIG. 4 is a side view of a pressure adjusting lever.

FIG. 5 is a bottom view of the same.

FIG. 6 is a front view of the same.

[Explanation of symbols]

1 side float 1a Rear rotating stay 1b Wire mounting stay 1c Front rotating stay 2 float rotation axis 3 Uesuka arm 3a long hole 4 stopper links 4a Pushing section 4b Spring connection part 4c interlocking pin 5 springs 7 Chain case with planting 8 Planting depth adjustment lever 12 Press adjustment lever

Claims (3)

(57) [Claims] 1. A center float is arranged in the center below a planting part of a rice transplanter, side floats are arranged behind wheels on both sides of the center float, and the float is supported at a rear end of a planting arm extending from a float rotation shaft. In the above configuration, one end of the stopper link is pivotally supported on the main body side of the planting portion above the rear fulcrum of the side float, the stopper link is projected forward and downward, and the stopper link and the implantation depth arm are engaged at respective intermediate portions. The side float of the rice transplanter is characterized in that a pressing body that presses the side float downward is provided at the front portion of the stopper link. 2. A stopper float is interlocked with the rotation of an implantation depth arm, a downward rotation regulating member is provided on the front part of the side float, and the regulating member is arranged so that the tip of the stopper link faces the side float. claim 1 Symbol, wherein the front sag by being configured to stop in a horizontal position
The side float of the rice transplanter listed above. 3. A pressing member is connected to one end of a wire, and a push / pull position adjusting member is provided at the other end of the wire, so that the pressing force of the pressing member can be changed independently on the left and right sides. The side float of the rice transplanter according to claim 1 .