JPS643323Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention uses a seedling planting section that has ground floats arranged in parallel on the left and right so that the seedling planting depth on the left and right sides is maintained almost constant regardless of the left and right inclination of the traveling machine. Preventing the seedling planting part from tilting relative to the ground due to the driving force of the rice transplanter, which is connected to the machine body in a rolling manner and is provided with a longitudinally rotating drive shaft that transmits power from the traveling machine body to the seedling planting part. To make it possible to do so, and to suppress as much as possible the inclination of a seedling planting part with respect to a traveling body when it is floated above the ground.

Next, embodiments of the present invention will be described based on the drawings.

As shown in FIGS. 1 and 2, a seedling planting section 1 is connected to the rear of the wheeled traveling body by a link mechanism 3 that can be vertically oscillated by a fluid pressure cylinder 2, and can be freely raised and lowered. , a rotary drive shaft 4 extending rearward from the traveling body and provided with a universal joint at each of the front and rear ends; and a rotary drive shaft 4 disposed at the free end of the link mechanism 3
The rice transplanter is constructed such that power is transmitted from the traveling machine body to the seedling planting section 1 by a rotary drive shaft 5 in the longitudinal direction of the machine body which is interlocked and connected to the extending end of the rice transplanter, thereby forming a riding rice transplanter capable of planting four rows. It has been done.

As shown in FIG. 2, the main body 1a of the seedling planting section 1 is connected to the free end member 3a of the link mechanism 3 so as to be able to swing around the axis P in the longitudinal direction of the device. As shown in FIG.
Two grounding floats 6a and 6b having the same grounding bottom area are provided in the seedling planting section 1 in parallel in the left-right direction of the machine. Both ground floats 6
The mounting level L ₁ of the right float 6b located on the descending rotating peripheral surface side of the drive shaft 5 among a and 6b is,
When the seedling planting part 1 is in a driving state and is horizontal on both sides, the left float 6a is installed at the mounting level.
When the seedling planting section ₁ is in a driving state and is horizontal on both sides, the sinking volume of the right float 6b into the field mud is greater than the sinking volume of the left float 6a into the field mud. It is designed to be large.

Even if the traveling machine tilts to the left or right due to the unevenness of the tiller, the seedling planting section 1 will roll against the traveling machine due to its own weight, and the seedling planting section 1 will roll against the moving machine due to its driving force. Since tilting to the left and right with respect to the surface is prevented by the buoyancy difference between the left and right floats 6a and 6b, the height of the left and right soil surfaces of the seedling planting section 1 is maintained almost constant, and the planting of the left and right is prevented. It is constructed so that work can be done while keeping the depth constant with high precision.

In order to express the difference in the sinking volume of the left and right grounding floats 6a and 6b into the field mud, as shown in FIG. 4, the mounting level L ₂ of the left float 6a is
and the mounting level _L1 of the right float 6b are configured so that they are the same when the seedling planting section 1 is in a driving state and is horizontal on the left and right sides, and the mounting level L1 of the right float 6b is
By making the effective length or effective width of b larger than the effective length or effective width of the left float 6a, or by combining them, the ground contact area of the right float 6b can be configured to be larger than the ground contact bottom area of the left float 6a. Good too.

In the traveling aircraft, as shown in FIG.
A pair of steering clutches 8, 8 that respectively act on the left and right rear wheels 7, 7, and left and right front wheels 9, 9.
and the differential mechanism 10's deflocking device 11,
The linkage mechanism 12 includes left and right clutch pedals 1 for operating both steering clutches 8, 8 separately.
When either one of the clutch levers 3 and 13 is pressed into the clutch disengagement position, the push/pull rod 14 and
By means of the operating wire 15, the operating swinging member 16 of the deflock device 11 is automatically operated to the operating position against the self-restoring force to the operating release position. In other words, when making a small turn using the steering clutch 8 in conjunction with steering the front wheels 9,
The left and right front wheels 9, 9 are reliably driven so as not to slip, and the steering clutch 8 allows the aircraft to be steered in the desired direction as much as possible, so that the aircraft can escape in the desired direction as much as possible.

In summary, the present invention provides that, in the above-mentioned rice transplanter, the subsidence volume of the grounding float 6b, which is located on the descending rotating peripheral surface side of the drive shaft 5, into the field is Planting section 1
It is characterized in that it is configured such that when it is horizontal on the left and right sides, the subsidence volume into the field is larger than that of the other 6a.

In other words, the ground level of one of the left and right sides of the seedling planting section 1 is lower than the ground level of the other side due to the driving force by making the buoyancy of the grounding float 6b on this side larger than the buoyancy of the other grounding float 6a. Therefore, it was possible to prevent the difference in planting depth between the left and right sides due to the driving force of the seedling planting section. Moreover, when adjusting the ground level on the left and right sides using the float buoyancy, it is only necessary to make the volumes and installation configuration lengths of both floats 6a and 6b different. The difference in weight between the two sides is smaller than when the rolling axis P is shifted to one side of the seedling planting section, so when the seedling planting section 1 is floated above the ground, the horizontal inclination with respect to the traveling machine is smaller. This makes it possible to reduce the amount of damage to a minimum, and when traveling in non-working conditions such as when turning, the slope of the seedling planting area causes a large difference in weight between the left and right sides of the traveling body, resulting in fewer troubles such as the steering wheel being taken off. I was able to operate the aircraft in a safe condition.

[Brief explanation of the drawing]

The drawings show an embodiment of the rice transplanter according to the present invention, in which Fig. 1 is a side view of the riding rice transplanter, Fig. 2 is a side view of the connection part of the seedling planting part, and Fig. 3 is the back side of the ground float attachment part. 4 is a rear view showing another embodiment of the grounding float, and FIG. 5 is a schematic plan view of the linkage mechanism of the steering clutch and the deflock device. 1... Seedling planting part, 5... Rotation drive shaft, 6a, 6
b...Grounding float, _L1 , _L2 ...Mounting level.

Claims (1)

[Claims for Utility Model Registration] A seedling planting section 1 having ground floats 6a and 6b arranged in parallel on the left and right is connected to a traveling machine body so as to be able to roll freely, and a front and rear direction is transmitted from the traveling machine body to the seedling planting section 1. The rice transplanter is equipped with a direction rotation drive shaft 5, and the ground floats 6a, 6
The subsidence volume of the part 6b located on the descending rotating circumferential surface side of the drive shaft 5 into the field is the subsidence volume of the other part 6a into the field when the seedling planting section 1 in the driven state is horizontal from side to side. A rice transplanter characterized by being configured to be larger than its volume. The grounding bottom areas of the left and right grounding floats 6a, 6a are configured to be substantially the same, and the mounting level L ₁ of the grounding float 6b, which is located on the descending rotating peripheral surface side of the drive shaft 5, among the grounding floats 6a, 6b.
is configured to be lower than the mounting level _L2 of the other 6a when the seedling planting part 1 in the driven state is horizontal on the left and right sides, so as to make the difference in subsidence volume appear. A rice transplanter according to claim 1 of the claims for utility model registration. The mounting levels L ₁ and L ₂ of the left and right grounding floats 6a and 6b are configured to be approximately the same when the seedling planting section 1 in the driven state is horizontal on the left and right sides, and
Of the 6b, the ground bottom area of the one 6b located on the descending rotating circumferential surface side of the drive shaft 5 is configured to be larger than the ground bottom area of the other 6a, so that the difference in sinking volume appears. A rice transplanter according to claim 1 of the utility model registration claim, characterized in that: