JPH029611Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention provides a seedling planting device with four planting claws arranged in parallel at the rear of a traveling vehicle body with front and rear wheels mounted on axles. On the other hand, a soil leveling float is provided with a soil leveling part for the two planting claws at the center in the left and right direction, and also serves as a sensor for detecting the level of the seedling planting device with respect to the planting mud surface, and both sides of the soil leveling float are provided. A side float with a leveling section for one planting claw was installed on each side, and left and right rear wheels with propulsion lugs were installed.
The present invention relates to a riding rice transplanter for planting four rows, which is arranged between two planting claws on both left and right sides when viewed from the front.

In the rice transplanter mentioned above, the propulsion lugs are generally attached to the rear wheels in such a way that they protrude from both the left and right sides of the rear wheels. In order to avoid lodging and adverse effects on the planting of new seedlings, the rear wheels are arranged in the center or approximately in the center between the imaginary extension lines of the seedling planting rows formed by the two planting claws on both the left and right sides. However, the gap between the left and right rear wheels was narrow, making it prone to overturning if the aircraft tilted left or right.

Therefore, if the unevenness of the plowing platform is large enough to cause the machine to overturn, or if the plowing board is easily collapsed and sufficient propulsion force cannot be obtained, the axle to which the rear wheels are attached may be Auxiliary wheels were attached to the vehicle. However, the provision of the auxiliary wheels had the drawback that adjacent planted seedlings could be knocked down due to the mud being pushed by the wheels.

In view of the above points, the present invention has been developed so that the left and right rear wheels can be installed with a large distance between the ruts while avoiding any negative impact on the adjacent already planted seedlings or the seedlings to be planted. The purpose is to suppress mud from being pushed onto adjacent planted seedlings as much as possible, and furthermore, it is intended to be able to effectively erase marks on the rear wheels and auxiliary wheels.

In order to achieve the above object, the present invention provides the aforementioned four-row riding rice transplanter with the propulsion lug protruding only inward from the rear wheel, and the rear wheel when viewed from the front. It can be freely changed between a first state in which it is arranged at a position closer to the planting claws on the outside than the center of the two planting claws adjacent to each other on the left and right, and a second state in which it is arranged at approximately the center of the left and right planting claws. The auxiliary wheel is attached to the axle, and in the second state, the auxiliary wheel is arranged on the outer side near the planting claws on both lateral outer sides when viewed from the front, and the auxiliary wheel is attached to the axle. The present invention is characterized in that a ground leveling member for erasing marks for the rear wheels is provided protruding from the outside of the machine body, and a ground leveling member for erasing marks for the auxiliary wheels is protruded from the outside of the machine body.

In other words, each of the rear wheels is provided with a propulsion lug that protrudes only inward from the machine body, and inward from the imaginary extension line of the seedling planting row by the planting claws located on both the left and right outer sides.
Moreover, since it is installed in a position close to that, it is possible to avoid the mud lifted by the rug from falling on the already planted seedlings, as well as from falling on the imaginary extension of the seedling planting row. The distance between the ruts between the left and right rear wheels has been increased, preventing rollover caused by tilting the aircraft and allowing stable driving. Furthermore, when installing auxiliary wheels when the conditions of the tiller are required, although they are located outside of the imaginary extension line of the seedling planting rows located on both outsides of the machine, they are placed close to the imaginary extension line of the seedling planting rows. It has become possible to minimize the knocking down of already planted seedlings by pushing mud.
In addition, since leveling members for erasing traces of the rear wheels and auxiliary wheels are protruded from the inside and outside of the body of each of the side floats that originally follow the planting mud surface, for example, With conventional systems in which a soil leveling member is attached to the equipment side, the leveling member also moves up and down relative to the planting mud surface as the level changes with respect to the planting mud surface due to changes in the depth of the plowing platform, resulting in soil leveling being impossible or vice versa. Scraping off more mud than necessary can lead to poor soil leveling, and in particular, there is a risk that a large amount of mud will be washed away to the side where the seedlings have been planted due to the leveling member for the auxiliary wheels.
In this case, it is possible to suppress the upward and downward displacement of the soil leveling member relative to the planting mud surface due to variations in the depth of the tiller, and it has become possible to effectively erase marks on both the rear wheels and the auxiliary wheels.

Hereinafter, embodiments of the present invention will be described in detail with reference to illustrative drawings.

A seedling planting device 6 is interlocked and connected to the rear of a traveling vehicle body in which front and rear wheels 1 and 2 are mounted on shafts and a control section 3 is arranged, through a link mechanism 5 to which a lift cylinder 4 is interlocked and can be driven up and down. , a four-row riding rice transplanter is configured.

At the lower part of the seedling planting device 6, side floats 9 are provided on both left and right sides, and each side float 9 has a ground leveling section 8 for one planting claw 7, and both side floats 9,
Two planting claws 7 between 9, the soil leveling part 10 for 7,
10, and a ground leveling float 11 which also serves as a sensor for detecting a change in the level of the planting mud surface of the seedling planting device 6 is provided.

Auxiliary lugs 12 are provided on each of the front wheels 1, 1 at a predetermined interval in the circumferential direction and protrude with a small amount in both the radial direction and the left-right direction of the vehicle.

Propulsion lugs 13 are provided on each of the rear wheels 2, 2 at a predetermined interval in the circumferential direction and protrude only toward the inside of the vehicle body, and the propulsion lugs 13, which are adjacent to each other in the circumferential direction, are provided. Auxiliary lugs 14, which protrude by a small amount both in the radial direction and in the left-right direction of the body, are provided between each of the lugs 13 and 13.

Each of the rear wheels 2, 2 has a rim portion 2a thereof.
is provided inward of the machine body and in close proximity to the planting claws 7, 7 on both sides of the machine body when viewed from the front, and the mud that falls after being lifted by the propulsion lugs 13... It is configured to avoid falling on the planned planting trajectory by the planting claws 7, 7.

A ground leveling member 15 for erasing traces of the rear wheels 2 is attached to each of the side floats 9, 9 in a state of protruding inward from the body.

Further, a ground leveling member 16 for erasing marks is attached to each of the side floats 9, 9 in a state of protruding outward from the body, and the axle 1 to which the rear wheels 2, 2 are attached is attached.
When the auxiliary wheels 18, 18 are attached to the auxiliary wheels 7, 17, respectively, the structure is such that the marks on the auxiliary wheels 18, 18 can be satisfactorily erased.

Both the ground leveling members 15 and 16 are mounted on side floats 9.
The side float 9 is detachably attached to each of the crimp flange portions 9a, 9a used when blow molding the side float 9. The lower end portions of the ground leveling members 15 and 16 are made to protrude approximately 1 cm below the leveling surface of the side float 9.

The rear wheels 2, 2 are respectively attached to the axle 17 in a first state in which they are attached to a position close to the outer planting claw 7 when viewed from the front, and in a first state in which they are attached to the axle 17 at a position close to the outer planting claw 7, respectively, and in a first state in which the rear wheels 2 are attached to the axle 17 at a position close to the outer planting claw 7. In the second state, the auxiliary wheels 18, 18 are attached to the planting claws 7 on the outside of the outer planting claws 7 when viewed from the front. It is installed close to.

In order to provide the side floats 9 with the ground leveling portion 8, a concave portion 1 is provided at approximately the center of the side float 9 in the left-right direction of the aircraft body, extending from the rear end side toward the front.
9 is provided, and the front end of the recess 19 is
The front upward arcuate portion 9b of the side float 9 is arranged to be located at a position rearward of the boundary A which is in contact with the planting mud surface in the normal planting state.

The seedling planting device 6 is attached to a mounting frame 20 connected to a link mechanism 5 so as to be rotatable around an axis P in the longitudinal direction of the machine body, and a bracket connected to a planting mission case 21. 22
, when the seedling planting device 6 is raised above the set level, the pair of left and right lower links 5a, 5a of the link mechanism 5
A pair of left and right stopper bolts 23, 23 are installed in a state in which they are in surface contact with each other.

In addition, the float 1 configured to also serve as the sensor
1 and a control valve (not shown) for the lift cylinder 4 are linked to maintain the level of the seedling planting device 6 relative to the planting mud surface within a set range regardless of changes in the amount of sinking of the aircraft body. The cylinder 4 is automatically operated as shown in FIG.
It is configured to control the elevation.

[Brief explanation of the drawing]

The drawings show an embodiment of the riding rice transplanter for 4-row planting according to the present invention. Fig. 1 is an overall side view, Fig. 2 is a plan view of the main part, and Fig. 3 is a main part showing the installation state of the auxiliary wheels. 4 is a partially cutaway front view, FIG. 4 is a sectional view taken along the line -- in FIG. 2, and FIG. 5 is a side view of the main part. 1... Front wheel, 2... Rear wheel, 6... Seedling planting device, 7... Planting claw, 8... Land leveling section, 9... Side float, 10... Land leveling section, 11... Land leveling float , 13... Propulsion lug, 15, 16... Trace erasing ground leveling member, 17... Axle, 18... Auxiliary wheel.

Claims (1)

[Scope of utility model registration request] A seedling planting device 6 has four planting claws 7 arranged in parallel at the rear of a traveling vehicle body with wheels 1 and 2 mounted on the front and rear wheels.
The seedling planting device 6 is provided with soil leveling parts 10, 10 for the two planting claws 7, 7 in the center in the left and right direction, and leveling the seedling planting device 6 with respect to the planting mud surface. A soil leveling float 11 is configured to double as a sensor for detecting the ground leveling float 11, and side floats 9 each having a leveling section 8 for one planting claw 7 are attached to each of the left and right sides of the leveling float 11, and the propulsion lugs 13... This is a riding rice transplanter for four-row planting, in which left and right rear wheels 2, 2 with ... attached thereto are arranged between two planting claws 7, 7 on both left and right lateral outer sides when viewed from the front, and the propulsion lug 13... ... is provided so as to protrude only toward the inside of the body of the rear wheels 2, and the rear wheels 2, 2 are arranged so that the rear wheels 2, 2 are located outside the center of the two planting claws 7, 7 that are adjacent to each other on the left and right when viewed from the front. The first state where the planting nails are placed close to each other, and the left and right planting nails 7, 7
The auxiliary wheels 18 are attached to the axle 17 so as to be changeable between the second state and the second state, and the auxiliary wheels 18 and 18 is configured to be attachable to the axle 17, and in each of the side floats 9, 9, a ground leveling member 15 for erasing marks for the rear wheels 2, 2 is provided on the inside of the body, and the auxiliary wheel 18 is provided on the outside of the body. This riding rice transplanter for planting four rows is characterized in that a ground leveling member 16 for erasing traces is provided protruding from each side.