JPS5935045Y2 - rice transplanter - Google Patents

Description

[Detailed description of the invention] This invention relates to a rice transplanter that runs by winding a rope stretched around a field around a rope drive pulley and winding and unwinding the rope by the rotation of this pulley. Our goal is to provide a rice transplanter with excellent straight running performance and wet field running performance.

Hereinafter, the present invention will be described in detail based on illustrated embodiments in order to better understand the present invention.

Fig. 1 is a side view of the rice transplanter according to the present invention, and Fig. 2 is a plan view thereof. In the figure, 1 is a traveling float, and 2 is the float 1.
The main body support case 3 attached to the top is a rice transplanter main body that is rotatably provided with respect to the float 1 and the support case 2.

The rice transplanter main body 3 includes an air-cooled 4-stroke gasoline engine 5 mounted on an engine stand 4, a transmission case 6,
Rear output gear case 8, transmission case 9, manual gear case 10, and planting case 11
, a planting claw 12 installed on both sides of the case 11 via a crank arm and a planting arm, and the planting case 1
It is composed of a handle 13 extending rearward from 1, a seedling mounting table 14 with a high front and a low rear on which a seedling mat is placed.

Inside the side output gear case 8, as shown in FIGS. 3 and 4, a drive shaft 15 is installed extending from inside the mission case 6, and a shaft 16 parallel to the shaft 15 is mounted.
There are 17.

Two gears 18 and 19 are fitted to the driving shaft 15, a reversing gear 20 is fitted to the central shaft 16, and a bevel gear 21 and a sliding gear 22 are provided to the driven shaft 17.

This sliding gear 22 includes a large diameter gear 22a that meshes with a gear 19 on the shaft 15 and a small diameter gear 2 that meshes with a gear 20 on the shaft 16.
2b, and is slidably fitted to the spline portion 17a of the driven shaft 17, and is configured so that the shaft 17 can be rotated in forward and reverse directions by operating the shift fork 23.

By the way, a bearing housing 24 is screwed onto the support case 2 at the center of the float 1.
The drive shaft 2 is connected to this housing 24 via a bearing 25.25.
6 is installed vertically.

This drive shaft 26 serves as the turning center of the rice transplanter main body 3, and its upper end extends into the gear case 8, and a bevel gear 27 that always meshes with the previously mentioned bevel gear 21 is fitted into this part. .

Further, the lower end of the drive shaft 26 extends to the lower part of the support case 2, and a sprocket 28 and a rope drive pulley 29 are respectively fitted into this part.

Further, a pair of front guide rollers 31.31 and rear guide rollers 32.31 and 32.31, which guide the rope 30, are located at the front and rear positions of the support case 2 across the pulley 29.
32 are each mounted on a shaft.

An auxiliary guide roller 33 is mounted on a shaft near the side of the rear guide roller 32.

Furthermore, a sprocket 34.35 and a feeding roller 36.37 are mounted on both front and rear ends of the left side (lower side in FIG. 2) of the support case 2, and a chain is mounted between each of the sprockets 28, 34, 35. 38' is stretched to rotate each delivery roller 36, 37.

On the other hand, the above-mentioned planting case 11 is provided with contact rollers 40 and 41 via brackets 38 and 39 extending in the left-right direction of the rice transplanter main body 3, and one of the contact rollers 40 and 41 is provided during the movement as shown in FIG. 40 contacts the feed-out roller 37, and the other rolling roller 41 rolls into contact with the feed-out roller 36 during the backward movement shown in FIG.

An annular traveling base 42 is provided on the support case 2, and three rotating rollers 43 are extended and supported from the mission case 6 and transmission case 9 of the rice transplanter main body 3 via brackets. ... are configured to be in contact with each other at equal intervals on the table 42.

As shown in FIGS. 2 and 5, the rope 30 stretched in the field using the rope support rods 44, 44 is passed between the front guide rollers 31, 31 to the central rope drive pulley 2.
9, the rope 30 is wound around this driving pulley 29, and then the rope 30 is wrapped around the rear guide roller 32.
．． Furthermore, the rope 30 is led out through the right side of the auxiliary guide roller 33 (upper side in FIG. 5) from between the rollers 37 and 40, and the rope 30 is guided by the rotation of the rope drive pulley 29. It is configured to travel by winding and unwinding operations.

The present invention is constructed as described above, and its operation will be explained below.

Now, when the shift fork 23 is operated and the large diameter gear 22a of the sliding gear 22 and the gear 19 on the shaft 15 are engaged with each other as shown in FIG. , gear 19.22a, driven shaft 17, bevel gear 21.27, and drive shaft 26 to sprocket 28 and rope drive pulley 29.

Therefore, the rope drive pulley 29 moves in the direction of the arrow in FIG.
The chain 38' is also driven in the direction of the arrow in the figure, and the pulley 29 takes up and unwinds the rope 30, and at the same time the rope 30 is unwound by the rollers 37 and 40. .

Therefore, the rice transplanter moves straight in the direction of arrow a in FIG. 5 along the rope 30 and plants the seedlings p.

When the forward process is completed in this way, the rice transplanter main body 3 is rotated 180 degrees counterclockwise about the drive shaft 26.

When the main body 3 is reversed, one roller 40 that was in rolling contact with the rear feeding roller 37 separates from the roller 37, and the other rolling contact roller 41 engages the rope 30 and contacts the front feeding roller 36. do.

Next, the rope support rod 44 is moved from the position shown in FIG. 5 to the position shown in FIG. 6, and the shift hawk 23 is operated to move to the fourth position.
When the small diameter gear 22b of the sliding gear 22 shown in the figure and the gear 20 on the shaft 16 are meshed with each other, the rotational force of the engine 5 is transmitted to the transmission, the driving shaft 15, the gears 18, 20, 22b, the driven shaft 17, and the bevel gear. 21, 27 and the drive shaft 26 to the sprocket 28 and the rope drive pulley 29.

Therefore, the rope drive pulley 29 is driven counterclockwise and the chain 38' is driven in the direction of the arrow in FIG. , roller 36.4
1, the rope 30 is let out.

Therefore, the rice transplanter moves straight back in the direction of the arrow in FIG. 6 along the rope 30 and plants the seedlings p'.

As described above, the present invention includes a float 1, a main body support case 2 mounted on the float 1, and a rice transplanter main body 3 that is rotatably provided with respect to the float 1 and the support case 2.
A drive shaft 26, which is the center of rotation of the rice transplanter main body 3, is installed vertically on the support case 2 at the center position of the float, and the drive shaft 26
6 is interlocked with the engine 5, while the drive shaft 26
A pair of front guide rollers 31.A pair of front guide rollers 31.A pair of front guide rollers 31.A rope drive pulley 29 is fitted into a hanging portion of the rope drive pulley 29. 31 and rear guide rollers 32 and 32 are respectively mounted on shafts, and after guiding the rope 30 stretched in the field to the rope drive pulley 29 through the front guide rollers 31 and 31, the rope 30 is guided to the drive pulley 29. 29, the rope 30 is led out between the rear guide rollers 32 and 32, and is configured to run by the rotation of the rope drive pulley 29, so that straightness is improved. Of course, it is possible to provide a rice transplanter with excellent running performance in wet fields.

Furthermore, compared to the conventional rope-guided rice transplanter described in Japanese Patent Publication No. 46-16925, the turning operation is extremely simple, and the rice transplanting efficiency can be improved.

[Brief explanation of the drawing]

Fig. 1 is a side view of the rice transplanter according to the present invention, Fig. 2 is a plan view thereof, Fig. 3 is an enlarged vertical sectional view of the center of rotation, and Fig. 4 is a view taken along the line N-N in Fig. 3. , and FIGS. 5 and 6 are plan views for explaining the operation of the present invention. 1...Float, 2...Main body support case, 3...Rice transplanter main body, 5...Engine, 26...Drive shaft, 29...Rope drive pulley, 30...Rope, 31...
- Front guide roller, 32... Rear guide roller.

Claims (1)

[Scope of utility model registration request] It comprises a float, a main body support case mounted on the float, and a rice transplanter main body provided so as to be pivotable relative to the float and the support case, and a drive that serves as the center of rotation of the rice transplanter main body is attached to the support case at the center position of the float. A shaft is installed vertically, and one end of the drive shaft is linked to the engine, while a rope drive pulley is fitted to the hanging portion of the drive shaft, and the rope is connected to the support case at the front and rear positions across the pulley. A pair of front guide rollers and a rear guide roller are each mounted on an axis, and a rope stretched in the field is guided to a rope drive pulley via between the front guide rollers, and then the rope is wound around the drive pulley. The rice transplanter is further configured to lead out the rope between rear guide rollers and travel by rotation of the rope drive pulley.