JPH025363B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a seedling planting device that can be driven up and down through a link device to a traveling body, and can be tilted in the left-right direction around the longitudinal axis of the body through a rolling device. 8, and a spring that provides a restoring force to return the traveling body of the seedling planting device to a parallel or nearly parallel specific posture in response to left and right tilting movements of the seedling planting device. Regarding machines.

In riding rice transplanters, the width of the seedling platform is larger than the horizontal width of the traveling machine, and when transporting to the rice field, the seedling planting device is removed from the traveling machine, and the direction of movement of the seedling platform is in the longitudinal direction of the machine. Conventionally, the pivot structure of the rolling device has been effectively utilized, and the seedling planting device has been removed with the rolling device divided, or the seedlings have been placed against the rolling device. They were removing the planting equipment, etc.

However, a spring to return the seedling planting device to the neutral side when the seedling planting device tilts left and right, and a spring that returns the seedling planting device to the neutral side, as well as the above-mentioned neutral return function, are necessary to prevent fluctuations in weight balance due to left and right reciprocation of the seedling platform. A variety of springs, including a spring that also has the function of absorbing water, are installed between the rolling device, and when the seedling planting device is removed from the traveling machine, the above springs must also be removed, which saves time and effort. It had become something like that.
Additionally, in the case of a rolling device that connects a pair of links in an inverted V shape, an auxiliary worker must maintain the links in a predetermined position when connecting the seedling planting device to the traveling machine. , it became even more time-consuming.

In view of the above points, the present invention eliminates the need to remove the spring, makes it easier to maintain the relative posture of the traveling machine and the seedling planting device in a predetermined position, and connects and connects the seedling planting device to the traveling machine. The purpose is to enable easy and quick release with less effort.

In order to achieve the above object, the present invention, in the above-mentioned riding rice transplanter, connects a mounting bracket attached to the rolling device to the link device so as to be freely connected and disconnected, and also connects the mounting bracket to the rolling device. The spring is tensioned across the seedling planting device.

The effects of the above configuration are as follows.

That is, the mounting bracket can be connected or disconnected from the linkage device with the spring still attached.
This allows the seedling planting device to be connected or disconnected from the traveling machine, and it is possible not only to tension the spring between the mounting bracket and the planting mechanism case, but also to tighten the spring between the mounting bracket and the planting mechanism case. Even if a spring is installed across the stand, by moving the seedling stand to a position where the left and right weight balance is stable when disconnecting, the mounting bracket can be tightened using the biasing force of the spring. It maintains a predetermined posture.

The effects of the above action are as follows.

In other words, not only does it become unnecessary to remove the spring, but also the mounting bracket can be automatically maintained in a predetermined position when connected, eliminating the need for an auxiliary worker to maintain the position of the mounting bracket, and making it possible to connect the seedling planting device to the traveling machine. The connection can now be easily and quickly removed with less effort.

Hereinafter, embodiments of the present invention will be described in detail based on illustrative drawings.

Two front wheels 1,1 and six rear wheels with lugs 2...
A link device 6 consisting of a top link 4 and a pair of lower links 5, 5 is provided at the rear of the traveling aircraft, which is equipped with a driver's seat 3 and a driving seat 3. A seedling planting device 8 for planting 8 rows can be freely tilted in the left-right direction of the machine around the longitudinal axis of the machine via the device 7.
is attached to form a riding rice transplanter.

The rolling device 7 includes a mounting bracket 9 that is detachably attached to the link device 6.
and the planting mechanism case 10 of the seedling planting device 8 are connected to a pair of links 11, 1 arranged in an inverted V-shape.
1, and integral arms 9A, 9A each protruding from the mounting bracket 9 and the seedling stand 1.
A pair of springs 13, 13 are stretched across the machine body 2 to absorb fluctuations in the weight balance due to the reciprocating movement of the seedling platform 12 in the left-right direction of the machine body, and to keep the seedling planting device 8 parallel to the machine body. The seedling planting device 8 is configured to maintain the seedling planting device 8 in a horizontal or almost horizontal posture, regardless of the left and right tilting movement caused by the tilting of the running ground of the traveling body, while applying a biasing force to restore the seedling planting device 8 to the horizontal posture. There is.

As shown in FIG. 2, a notch 14a into which the rear end of the top link 4 is inserted is formed at the upper end of the mounting bracket 9, and engaging recesses 14 with downward openings are provided on each side of the notch 14a. A connecting bracket 15 connects the top link 4 and lower links 5, 5 at the rear end of the link device 6.
It is configured such that its upper end can be fitted into and removed from the engaging recesses 14, 14. Further, a pair of positioning pins 16, 16 each having a tapered portion at the tip is protrudingly provided below the mounting bracket 9, and on the other hand, the positioning pins 16, 16 are inserted into and removed from the connecting bracket 15 side. The locking holes 17, 17 are drilled, and when the pins 16, 16 are inserted, the locking pins 18, 17 are inserted.
By attaching the bracket 18, the connecting bracket 15 and the mounting bracket 9 are connected and fixed. The locking holes 17, 17 are also configured in a tapered shape so that the positioning pins 16, 16 can be easily inserted and removed as the connection bracket 15 swings in a state that it is locked in the recesses 14, 14. .

With the above configuration, first, in the uncoupling work, transport and support wheels (not shown) are removably attached to each of the left and right ends of the seedling planting device 8, and the left and right weight balance of the seedling platform 12 is stabilized. position, and in that state, lower the seedling planting device 8 to ground the wheels, and then remove the retaining pin 1.
8 and 18, then lower the link device 6 and remove the connection bracket 15 from the mounting bracket 9.
It causes them to leave.

In the connection work, the machine is operated so that the connection bracket 15 is placed in the corresponding position to the installation bracket 9, and then the link device 6 is lowered and the connection bracket 15 is positioned below the installation bracket 9, and Then, the link device 6 is driven upward to engage the recesses 14, 14, and by further rising, the positioning pins 16, 16 are inserted into the locking holes 17, 1.
7, and finally the retaining pins 18, 18
are attached to the positioning pins 16, 16 to complete the connection and fixation.

FIG. 5 shows another embodiment in which left and right side plates 15a, 15a are connected to the connection bracket 15, and the left and right side plates 15 are attached to the other mounting bracket 9.
The left and right side plates 9a, 9a are arranged in series so as to be located laterally outward of each of the side plates 9a, 9a, and the side plates 9a, 9
Forming pin holes 20 in each of a, 15a, 15a,
The brackets 9 and 15 are connected and fixed by attaching the lock pins 21 to the pin holes 20 and 20.

In the present invention, the spring 13 is stretched across the mounting bracket 9 and the planting mission case 10, etc. In short, the spring 13 is stretched across the mounting bracket 9 and the planting mission case 10. It can be applied to any type provided with a spring 13 that provides a restoring force to return to a specific posture parallel or nearly parallel to the aircraft body.

Further, the rolling device 7 may be one in which a single pivot shaft is provided rearwardly protruding from the mounting bracket 9, and the seedling planting device 8 is pivotably supported around the pivot shaft.

[Brief explanation of drawings]

The drawings show an embodiment of the riding rice transplanter according to the present invention, with FIG. 1 being an overall side view, FIG. 2 being a partially cutaway plan view of the main parts showing the disconnected state, and FIG. 3 showing the connected state. FIG. 4 is a partially cutaway side view of the main part showing an operating state during connection, and FIG. 5 is an exploded perspective view of the main part showing another embodiment. 6...Link device, 7...Rolling device, 8
...Seedling planting device, 9...Mounting bracket, 13...
…spring.

Claims (1)

[Claims] 1. A seedling planting device 8 is provided on the traveling machine body so that it can be driven up and down via a link device 6, and can be tilted in the left-right direction of the machine around the longitudinal axis of the machine via a rolling device 7, and A riding-type rice transplanter is provided with a spring 13 that provides a restoring force to return the seedling planting device 8 to a specific posture parallel or almost parallel to the traveling machine body in response to left and right tilting movements of the planting device 8, A mounting bracket 9 attached to the rolling device 7 is connected to the link device 6 so as to be freely connected and uncoupled, and the spring 13 is stretched across the mounting bracket 9 and the seedling planting device 8. A riding rice transplanter.