JPH0310608A - Line drawer in rice transplanter - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] (Industrial Application Field) This invention relates to a rice transplanter that plants seedlings in a rice field.
When the rice transplanter is turned around and operated, cotton is drawn in the field at the return Z [step] as a guide for operating the rice transplanter, and the new installation of the marker that draws this line suggests a new structure.

(Prior Art) Conventionally, as shown in, for example, Japanese Patent Application Laid-open No. 56-26109, the base of a marker was rotatably attached to the tip of a support rod that protruded outward from the end of the seedling planting transmission case 2 using a pin. A tension spring and an inner wire were installed parallel to this support rod.

(Problem to be solved by the invention) Here, the marker is pulled and rotated by a tension spring,
Because its tip is touching the ground.

When pulling up the tip of this marker with the inner wire, the length of the arm from the pin in the pulling direction of the inner wire becomes extremely short, requiring a large amount of force.

(Means for Solving the Problem) In order to solve the above-mentioned problems, the present invention provides a seedling planting transmission case 2 which is provided horizontally under the seedling platform 1, and a seedling planting transmission case 2 whose tip touches the ground. Marker 4 draws a line on the ground as it moves forward,
A pair of upper and lower support rods 5 and 6 are provided outward from the end of the seedling planting transmission case 2 and are vertically parallel.
is rotatably attached to the lower support rod 6 with a pin 7 slightly beyond the base end, and a tension spring 8 is provided across the base end and the upper support rod 5, and the end is fixed to the upper support rod 5 from the outer 9. This wire drawing device for a rice transplanter is characterized in that the end of an inner wire 10 that extends is attached to a marker 4 on the tip side of a pin 7.

(Function) That is, the marker 4 is pulled by the tension spring 8 and rotates around the pin 7, with the tip touching the ground.

When planting rice while driving the rice transplanter with the rice transplanter turned back, pull up the marker 4 on the side where the seedlings were planted and draw a line on the ground with the other marker 4. When pulling up the marker 4, pull the inner wire 10 on that side. Then, the marker 4 rotates around the pin 7 while stretching the tension spring 8, rotates approximately 90 degrees, and the tip is pulled up from the ground.

(Effect) As described above, in this invention, when the inner wire 10 rotates the marker 4, the direction of the inner wire 10 with respect to the marker 4 is maintained at approximately 90 degrees, so that the inner wire 10 is rotated. Small power is good. That is, the marker 4 has the characteristic of being pulled up lightly.

(Example) Next, a rice transplanter to which the present invention is applied will be explained based on the drawings.

A planting device 12 is connected to the rear of the vehicle body 11 with links 13 and 14 to form a rice transplanter.

An engine 15 is installed in the center of the vehicle body, and its power is
The transmission device 16 connects the front wheels 41. - rear wheel 42 and planting device 1;
2.

The cylinder 17 includes a ram 18 extending rearward and is fixed to the vehicle body 11 next to the engine 15. A protrusion 19 is fixed to the rear end of the ram 18, and the end of a link 20 that is pivoted to the protrusion 19 is pivoted to an arm 21 that is integral with the link 13, and the pressure fed into the cylinder 17 is The oil pushes out the ram 18, the link 20 turns the arm 21, the links 13, 14 turn, and the planting device 12 rises while remaining substantially parallel. Note that when the pressure oil in the cylinder 17 is released, the planting device 12 is lowered.

The horizontally elongated seedling planting transmission case 2 is located in the center of the planting device 12, and the seedling platform l is installed obliquely on top of this seedling planting transmission case 2, and is configured to reciprocate from side to side with a predetermined width. ing. The transplanting device 22 is installed in an arm-shaped case 23 that extends backward from the seedling-transplanting transmission case 2, and is positioned so that the vertically long loop opening drawn by the tip of the device intersects with the lower part of the seedling table l during the descending process. , place the mat-shaped seedlings on the seedling stand 1 sideways one by one starting from the edge.
It is designed so that you can cut out the whole plant and insert it into the ground.

The float 24 is provided under the seedling planting transmission case 2, and its lower surface contacts the ground.

As shown in FIGS. 2 and 3, the upper support rod 5 and the lower support rod 6 are vertically parallel to each other, and one set is provided on each side of the seedling planting transmission case 2.

Further, the cross section of the upper support rod 5 is in the shape of ], and the cross section of the tip of the lower support rod 6 is in the shape of a bow opening downward.

Marker 4 consists of a pair of left and right symmetry, and the tip is approximately 90mm
It is bent once, and the tip touches the ground, drawing a line as the aircraft moves forward.

This marker 4 is located slightly ahead of the base end of the bracket 2.
5 is fixed, and this bracket 25 enters the U-shaped portion of the lower support rod 6 from below and is pivoted with a pin 7. marker 4
A small plate 26 is fixed to the base end of the tension spring 8, and both ends of the tension spring 8 are hung between the plate 26 and the upper support rod 5. Also,
A stopper 27 is fixed to the base end of the marker 4 on the lower side, and the rotation of the marker 4 by the tension spring 8 is controlled by the stopper 27.
is adapted to come into contact with the lower surface of the lower support rod 6 and stop.

One end of the outer 9 is fixed to the tip of the upper support rod 5,
One end of the inner wire 10 extending from this point is connected to the pin 7.
It is attached to the marker 4 earlier than.

The other end of this outer 9 is connected to the cylinder 1 as shown in FIG.
A slider 3 having a step 29 is attached to the other end of the inner wire 10 which is fixed to the receiving plate 28 at the base of the inner wire 10 and extends from the receiving plate 28 at the base of the
0 and a rod 32 with a type 31 extending beyond this, which are slidably inserted into a receiving plate 33 and an arm 34 projecting from the end of the cylinder 17 and the ram 18, respectively.

The tip of the receiving plate 33 is bent into an L shape, and a spring 35 is attached to the tip.
There is a pin 36 that is pushed out by an inner wire 37, which is pulled back against the spring 35, and the end of an outer 38 that covers the inner wire 37 extends to the meter panel 39. The end of the inner wire 37 is attached to a lever 40 provided on the meter panel 39. The rice transplanter thus constructed is in the posture shown in FIG. 1 during operation. That is, the planting device 12 is lowered, the float 24 is on the ground, and the tip of the marker 4 on the side where no seedlings are planted is lowered.

When this rice transplanter reaches the edge of the field and turns the machine,
Pressure oil is sent into the cylinder 17 by operating the lever. Then, the ram 18 is pushed out and the protrusion 19 becomes the link 20.
By rotating the arm 21 via the link 13.14, the planting device 12 is raised from the ground.

At this time, the arm 34 that is integrated with the ram 18 hits the head 31,
Pull the rod 32 (Fig. 5), the inner wire 10 is pulled,
Turn marker 4 around pin 7 and pull up the tip. Here, if the inner wire 37 is loosened by operating the lever 4o and the pin 36 is pushed out by the spring 35, the pressure oil in the cylinder 17 is removed, the planting device 12 is lowered, and the ram 18
When the inner wire 9 returns to the cylinder 17, the pin 36 hits the stage 29 and stops the slider 30 from returning.
is in a drawn state, and marker 4 is maintained in a raised state. In addition, when the inner wire 37 is pulled and the pin 36 is pulled by operating the lever 4o, the above-mentioned pin 36 and the stage 2
9 is disengaged, the inner wire 10 is pulled back by the spring 8, and the tip of the marker 4 descends.

In carrying out this invention, an electromagnetic device is used, and the planting device 1
The pair of left and right pins 36 may be lowered alternately on the upper and lower sides of the inner wire 1.
It is also possible to adopt a configuration in which 0 is pulled by a manually operated lever.

[Brief explanation of drawings]

Fig. 1 is a left side view of the rice transplanter according to the present invention, Fig. 2 is an enlarged right side view of a portion thereof, Fig. 3 is a rear view of a portion thereof, and Fig. 4 is a partially cutaway view. FIG. 5 is a cutaway side view of the cylinder portion. The symbols in the figure are as follows. 1 Seedling stand 2 Seedling planting transmission case 3 Aircraft
4 Marker 5 Upper support rod 6 Lower support rod 7 Pin 8 Tension spring 9 Outer 10 Inner wire Fig. 3

Claims (1)

[Claims] Seedling planting transmission case 2 installed horizontally under the seedling platform 1
, a marker 4 whose tip touches the ground and draws a line on the ground as the machine body 3 moves forward, and a pair of upper and lower support rods 5 and lower support rods that are vertically parallel and provided outward from the end of the seedling planting transmission case 2. 6, the marker 4 is rotatably attached to the lower support rod 6 with a pin 7 slightly beyond the base end, and a tension spring 8 is provided across the base end and the upper support rod 5, and the end is attached to the upper support rod 5. The end of the inner wire 10 extending from the stopped outer 9 is connected to the pin 7
A wire drawing device for a rice transplanter, characterized in that it is attached to a marker 4 at a tip end side.