JPH0226252Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a rice transplanter in which a planting device is connected to a traveling main machine in a rolling manner.

In such a rice transplanter, since the planting device and the traveling main machine are relatively freely rolling,
Even if the running machine rolls due to the difference in the depth of the left and right tillers, the planting device will not roll and will maintain the planting device in the set position to keep the left and right planting depths constant or almost constant. However, on the other hand, during ridge work, etc., the ground reaction force of the left and right ground floats may be affected due to differences in the height and hardness of the mud surface on which the left and right ground floats of the planting device move (slide). When a difference occurs, the planting device unexpectedly rolls due to the difference in ground reaction force, and the planting posture of the seedling becomes inclined.

Another disadvantage is that the seedlings on the seedling rack are pressed against one side edge of the seedling rack, which impairs the vertical feeding of the seedlings.

An object of the present invention is to rationally eliminate such drawbacks.

The rice transplanter according to the present invention has at least one of the left and right grounding floats of the planting device,
It is characterized in that it is mounted so as to be movable up and down relative to the main body of the planting device, and is provided with a drive mechanism that forcibly moves the float up and down relative to the main body of the planting device.

According to the characteristic configuration of the present invention, when a difference occurs in the ground reaction force acting on the left and right ground floats due to changes in mud surface height, hardness, and softness, etc., the left and right ground floats roll accordingly. Of course,
By rolling the planting device main body with respect to the rolled left and right ground floats, the planting device main body can be maintained in the set posture.

Therefore, the present invention can maintain the main body of the planting device in the set posture regardless of the rolling of the traveling machine and the rolling of the left and right ground floats, and the planting depth can be kept constant on the left and right sides regardless of the left and right inclination of the hardboard. In addition, it has become possible to suppress disturbances in seedling planting posture caused by the horizontal height and hardness of the mud surface.

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

This is a riding rice transplanter in which a planting device 2 is connected to the rear of a riding machine 1 via a link mechanism 3 so as to be able to rise and fall freely, and the planting device 2 has a seedling stand 2a and a planting claw 2b. a main body 2A which is equipped with the main body 2A and is connected to the link mechanism 3 in a rolling manner; and a plurality of floats which are arranged at appropriate intervals in the lateral direction and level the mud surface while supporting the main body 2A against the ground (mud surface). 2B, 2B', and 2C.

Of the floats 2B, 2B', 2C, the left and right floats 2B, 2B' are connected to the main body 2A.
The left and right float pairs 2B and 2B' are configured to be vertically swingable separately relative to the main body 2A, thereby forming a left and right ground float pair 4 and 4' that can be freely rolled relative to the main body 2A, and A drive mechanism 5 is provided which swings the left and right grounding floats 4, 4' up and down separately via hydraulic cylinders 5A, 5A', that is, relatively rolls the left and right grounding float pair 4, 4' and the main body 2A. establish.

Therefore, the left and right ground float pair 4, 4' and the main body 2
By rolling the main body 2A of the planting device 2 relative to the mud surface, the main body 2A of the planting device 2 can be brought into any desired mud surface rolling posture, regardless of the mud surface rolling posture of the left and right ground float pair 4, 4'.

The drive mechanism 5 moves the main body 2A and the pair of left and right ground floats 4, 4' relative to each other so that the main body 2A assumes the set rolling attitude based on the detection result of a level sensor 6 that detects the rolling attitude of the main body 2A. It is a rolling motion.

7 is a hydraulic cylinder for raising and lowering the planting device, and 8 is an operating lever for operating the drive mechanism 5 with priority over the sensor 6.

According to the configuration of the above embodiment, the main body 2 is
A is supported on the mud surface in the set posture, and if there is a difference in ground reaction force for the left and right grounding float pair 4, 4', then the left and right grounding float pair 4, 4'
However, the main body 2A is rolled relative to the pair of left and right ground floats 4, 4' by the operation of the drive mechanism 5 based on the sensor 6, and is maintained in the set rolling attitude.

The present invention may be implemented as follows.

Applicable to walking rice transplanters.

The drive mechanism 5 is constructed so that it can only be operated manually.

The pair of left and right ground contact portions 4, 4' do not have to be equipped with floats for leveling the ground as in the embodiment, but may be provided with separate floats for sliding on muddy surfaces.

The drive mechanism 5 in this embodiment is configured so that only one of the grounding floats 4 is vertically swung relative to the main body 2A, and the left and right grounding float pair 4, 4' and the main body 2A are rolled relative to each other.

A pair of left and right ground floats 4, 4' are attached to a frame pivotally connected to the main body 2A so as to be rollable relative to the main body 2A.

[Brief explanation of the drawing]

FIG. 1 is a side view, and FIG. 2 is a front view of the main parts. 1... Traveling main machine, 2... Planting device, 4, 4'...
...Left and right ground floats, 2A...Planting device body, 5
...Drive mechanism.

Claims (1)

[Scope of utility model registration request] In a rice transplanter in which a planting device 2 is connected to a traveling main machine 1 in a rolling manner, at least one float 4 or 4' of the left and right grounding floats 4, 4' of the planting device 2 is connected to the planting device 2. Main body 2 of device 2
The rice transplanter is equipped with a drive mechanism 5 which is mounted so as to be movable up and down relative to A, and which forcibly moves the float 4 or 4' up and down relative to the main body 2A of the planting device 2. .