JPS6335533Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a rice transplanter which supports a seedling transplanting device on the machine body and has two pairs of wheels mounted on both sides of the machine body.

The present invention provides the rice transplanter as described above, in which the axle is formed with a male thread, and a plurality of through holes are provided along the length direction of the axle at intervals of approximately the same size as the seedling spacing; A female thread is formed on the inner circumferential surface of the boss portion of the wheel to be engaged with the male thread of the axle, so that the wheel is fitted and supported so as to be movable along the axle when the wheel rotates, and the wheel is fitted onto the boss portion of the wheel. By providing an insertion hole and fixing the wheel to the axle by inserting a pin into the insertion hole and the through hole, the wheel is moved along the axle,
The wheel spacing of the wheels can be easily changed, and when the rice transplanter is running on soft ground,
By increasing the wheel spacing by the same dimension as the seedling planting spacing, the rice transplanter can be stabilized and run safely without tripping over the planted seedlings with the wheels. This is intended to stabilize the rice transplanter by increasing the distance between its wheels when traveling on the road or when transporting the rice transplanter by mounting it on a transport vehicle.

The details of the present invention will be explained below based on the embodiments shown in the drawings. In the figure, 1 is the body of a riding rice transplanter. Front wheels 2, 2 are provided on both sides of the front part of the body 1, and transmission chain cases 3, 3 are swingably provided on both sides of the rear part. Axles 4, 4 are provided protruding from the rear wheels 4, 4, and rear wheels 5, 5 are mounted on the respective axles 4, 4.

Each of the wheels 2, 2 and 5, 5 is connected to the fuselage 1.
It is linked to the prime mover 6 mounted above.

Further, a control handle 7 and a pilot seat 8 are provided on the body 1, and a seedling planting device 12 consisting of a float 9, a planting claw 10, a seedling stand 11, etc. is mounted on a rocking device at the front of the body 1. 13 so as to be movable up and down, and the planting claw 10 is supported as the machine body 1 moves forward.
Accordingly, the seedlings on the seedling stand 11 are successively planted in the field.

However, the present invention has the above riding rice transplanter,
A male thread 14 is formed on the axle 4 protruding from the transmission chain case 3, and a female thread 16 is formed on the inner peripheral surface of the boss portion 15 of the rear wheel 5 to be screwed into the thread 14. The rear wheel 5 is inserted and supported so as to be movable along the line 14.

A pair of insertion holes 17, 17 are formed at a predetermined interval in the boss portion 15 of the rear wheel 5, and a pair of insertion holes 17, 17 are formed at the same intervals as the insertion holes 17 at the tip of the axle 4 near the case 3. Through hole 18,1
8 are formed, and the insertion hole 17 of the boss portion 15,
By passing pins 19, 19 through any pair of through holes 18 in the axle 4 from 17,
A boss portion 15 of a rear wheel 5 is fixed to an axle 4. Further, the interval between the two sets of through-holes 18 is approximately the same width as the interval between seedlings planted by the seedling planting device 12, that is, for example, if the distance between the rows of seedlings a planted by the seedling planting device 12 is 30 cm, The interval between the two sets of through holes 18 is 30 cm. As a result, the positions of the rear wheels 5, 5
As shown in Fig. 3, the positions of the front wheels 2, 2 are Y, Y.
It can be changed up to . In the figure, reference numeral 20 denotes a stopper collar for preventing the wheel 5 from falling off.
Fixed by 1.

In the present invention, the axle 4 is extended, and three sets of through holes 18, 18 are formed at the same intervals as above,
The positions X,
It may also be possible to change it up to , which further improves the stability of the aircraft.

Furthermore, in the present invention, the treatment is not limited to the rear wheel 5, but may be applied to the front wheel 2. Furthermore, although a four-wheel riding type rice transplanter has been described above, the present invention can also be applied to a two-wheel walking type rice transplanter.

In the above configuration, when the rice transplanter is to be run on soft ground, the pins 19, 19 are removed, the rear wheels 5 are set in a free state, and the rear axle 4 is
The aircraft is stopped using the brakes, etc., and then the aircraft is moved forward or backward. Then, the rear wheel 5 rotates due to ground resistance due to the weight of the machine, and the screw 14 of the axle 4
until it abuts against the collar 20.
Therefore, when the rear wheel 5 is moved to a predetermined position, that is, to the position Y of the front wheel 2 in FIG. , 18, and the rear wheels 5 are fixed in a state where the distance between the rear wheels 5 is widened.

By widening and adjusting the distance between the rear wheels 5 in this way, the machine body becomes stable and falls accidents are prevented, and at the same time good seedling planting work is carried out. Since each seedling is adjusted to the same width, there is no need to step on the planted seedling a.

Further, when adjusting the distance between the rear wheels 5, 5, the machine is moved in the opposite direction to the above case, and the rear wheels 5, 5 are fixed.

Furthermore, when the rice transplanter is driven on the road or mounted on a transport vehicle, the distance between the rear wheels 5, 5 is adjusted to widen and stabilize the machine body in the same manner as described above.

As explained above, the present invention forms a male thread on the axle, and provides a plurality of through holes along the length direction of the axle at intervals of approximately the same size as the spacing between seedlings. A female thread is formed on the inner peripheral surface of the boss portion to be screwed into the male thread of the axle, and the wheel is inserted and supported so as to be movable along the axle when the wheel rotates, and is inserted into the boss portion of the wheel. By providing a hole and fixing the wheel to the axle by inserting a pin into the insertion hole and the through hole,
The wheel spacing between the wheels can be easily changed by rotating the wheels and moving them along the axle. By widening the distance between the wheels when the aircraft is loaded and transported, the aircraft can be stabilized and falls over can be prevented.

Moreover, since the spacing of the through holes provided in the axle is set to be approximately the same as the spacing between seedlings planted by the seedling planting device, the position of the wheel can be changed by approximately the same size as the spacing between seedlings. Not only can the aircraft be stabilized to allow safe driving at times, but when changing or adjusting the wheel position, this can be done without worrying about the wheel position relative to the seedling spacing. This makes it possible to prevent the planted seedlings planted by the seedling planting device from being stepped on, and therefore, the wheel position can be changed easily and quickly.

[Brief explanation of the drawing]

Figure 1 is a side view of the rice transplanter according to the present invention, Figure 2 is a side view of the rice transplanter according to the present invention;
The figure is an enlarged exploded sectional view of the main parts, and FIG. 3 is an explanatory diagram showing a state in which the wheels are changed. 1... Aircraft, 2, 5... Wheels, 4... Axle, 1
2... Seedling planting device.

Claims (1)

[Scope of utility model registration request] In a rice transplanter in which a seedling transplanting device is supported on the machine body and a pair of wheels are mounted on the machine body, the axle is formed with a male thread and a plurality of through holes are formed along the length direction of the axle. Holes are provided at intervals of approximately the same size as the spacing between seedlings, and a female thread is formed on the inner circumferential surface of the boss portion of the wheel to be screwed into the male thread of the axle, so that rotation of the wheel causes the wheel to A rice transplanter characterized in that the wheel is inserted and supported so as to be movable along the axle, and an insertion hole is provided in the boss portion of the wheel, and the wheel is fixed to the axle by inserting a pin into the insertion hole and the through hole. Machine.