JPH0212811Y2 - - Google Patents

Description

[Detailed explanation of the invention] The planting transmission case in the planting device of the conventional riding rice transplanter was attached only to the shaft case, so the planting part was moved by the rotation of the planting rod or the pushing up force due to the buoyancy of the float. The shaft case must be made extremely strong because it will vibrate violently and the shaft case will bend, making planting unstable.
As a result, the weight and cost of the planting equipment increases, and the diameter of the shaft case increases, resulting in a narrower distance between the planter and the field, which has drawbacks such as the mud lifted by the wheels being washed away when the machine rotates. It was hot.

The present invention is an attempt to improve the above-mentioned drawbacks, and involves mounting a planting device on the rear of the aircraft so that it can be raised and lowered via a link, and connecting multiple planting transmission cases of the planting device from the drive case. In a rice transplanter mounted on an extended shaft case, a horizontal frame substantially parallel to the shaft case is disposed in the front part of the shaft case, and a horizontal frame is provided on both sides of the shaft case and the horizontal frame, and in the middle of the horizontal frame. and the drive case are each integrally connected by a vertical frame, and the rear part of the vertical frame on both sides integrally connects the planting transmission case, the shaft case, the rear part of the vertical frame, and the vertical frame, and the rear part of the vertical frame on both sides is integrally connected to the horizontal frame. The feature is that the link holder connected to the machine is fixed.

The embodiment shown in the drawings will be explained below.1
is a four-wheeled rice transplanter equipped with auxiliary seedling stands 2 on the left and right sides of the driver's seat, and a link holder 3 at the rear.
A planting device 4 is attached via the top link 5a and the lower links 5b, 5b, and the planting device 4 receives input from the PTO axis of the machine body 1 and transmits the input to the left and right planting transmission cases 6 and the screw shaft 7a. A drive case 7 that distributes power to the planting rods 7b and a float 8 attached to each planting transmission case 6, one pair each on the left and right.
... and a seedling stand 9 that reciprocates left and right by the screw shaft 7a, and the left and right planting transmission cases 6 are connected to the ends of a shaft case 10 extending from the lower part of the drive case 7 to both sides. A substantially parallel horizontal frame 11 is disposed at the front of the shaft case 10.

And the vertical frame 1 fixed to both ends of the horizontal frame 11
As shown in Figs. 3 to 5, the rear part of 2 is fixed to the flange of the shaft case 10 and the front part of the planting transmission case 6 by jointly tightening the three with bolts 13a and nuts 13b. The intermediate portion of the frame 11 and the drive case 7 are integrally connected by a vertical frame 12a.

In addition, the floats 8 are suspended via arms 15 from arm rods 14 that protrude rearward from the left and right planting transmission cases 6 and the central drive case 7,
A support shaft 16 is rotatably supported on an arm rod 14 extending rearward from the drive case 7 and a bracket 7c protruding from the back surface of the shaft case 10.
is connected to the base of the arm 15 via a connecting rod 18, and the base is connected to the support shaft 1.
An operating rod 19 fixed to 6 is inserted into a groove in a guide plate 20 erected on the horizontal frame 11.

Furthermore, a fulcrum shaft 21 is provided in the center of the horizontal frame 11 and projects forward. Projection piece 2 protruding from
2, 22 and the upper part of the link holder 3 are suspended by springs 23, 23.

In the above-described device, when the machine body 1 is moved forward while driving the planting device 4, the planting rod 7b scrapes off the seedlings on the seedling platform 9 and plants them on the rice field.

During this time, the planting rod 7b moves up and down, and the wheels of the machine body 1 roll on the tiller, so the planting device 4 vibrates and a bending force is applied to the shaft case 10. The shaft case 10 and the horizontal frame 11 including the vertical frames 12 and 12a are configured as a frame in which both side parts and the middle part are integrally connected when viewed from above, and the planting transmission case 6, the vertical frame 12, and the shaft Since the case 10 and the case 10 are jointly fastened and integrated, it is extremely strong.

Further, when adjusting the planting depth, by moving the operating rod 19 up and down, the float 8 moves up and down with respect to the planting transmission case 6 and the drive case 7, and the planting depth is adjusted.

As mentioned above, the present invention is a rice transplanter in which a planting device is attached to the rear of the machine so that it can be raised and lowered via a link, and a plurality of planting transmission cases of the planting device are attached to a shaft case extending from a drive case. In the machine, a horizontal frame substantially parallel to the shaft case is disposed in the front part of the shaft case, and both sides of the shaft case and the horizontal frame, and an intermediate part of the horizontal frame and the drive case are each integrated by the vertical frame. The rear portions of the vertical frames on both sides are connected to the planting transmission case, the shaft case, the rear portions of the vertical frames, and the vertical frames, and the link holders connected to the machine are fixed to the horizontal frames. Therefore, the shaft case extending to both sides from the drive case and the horizontal frame at the front of the shaft case form an integral framework structure using the vertical frame, and the planting transmission case can be vibrated without having to make the shaft case large in diameter as in the past. Since the shaft case can be held extremely firmly to prevent it from becoming wet and the diameter of the shaft case does not need to be increased, the shaft case does not push out the mud lifted by the wheels when the machine rotates, thereby preventing the flow of mud from worsening.

In addition, the horizontal frame is integrated with the shaft holder and drive case by each vertical frame to form a strong frame, and since the link holder is fixed to the horizontal frame, which is a component of this frame, the planting device The whole can be firmly connected to the link holder, and the planting device can be raised and lowered in a stable state with little shaking.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention,
Figure 1 is a side view of the riding rice transplanter, Figure 2 is a side view of the planting device, Figure 3 is a plan view of the main parts, Figure 4 is a rear view of the same, Figure 5 is a sectional view of the frame connection part. , FIG. 6 is a plan view showing a partial cross section of the support part of the planting part, and FIG. 7 is a side view of the same. 4... Planting device, 6... Planting transmission case, 7...
...Drive case, 10...Shaft case, 11...
...Horizontal frame, 12, 12a... Vertical frame.

Claims (1)

[Scope of utility model registration request] In a rice transplanter in which a planting device is attached to the rear of the machine so as to be movable up and down via a link, and a plurality of planting transmission cases of the planting device are attached to a shaft case extending from a drive case, A horizontal frame approximately parallel to the shaft case is provided at the front,
Both sides of the shaft case and the horizontal frame, and the middle part of the horizontal frame and the drive case are each integrally connected by a vertical frame, and the rear part of the vertical frame on both sides is connected to the planting transmission case, the shaft case, and the vertical frame. 1. A planting device for a riding rice transplanter, characterized in that a rear part of the rice transplanter and a vertical frame are integrally connected, and a link holder connected to the machine is fixed to the horizontal frame.