JPH0723627A - Planting pawl cleaner fir rush transplanter - Google Patents

Abstract

PURPOSE:To enable the uniform planting of rush seedlings in a field by imparting sufficient durability to a driving mechanism for a planting pawl cleaner and simultaneously preventing the rush seedlings after the planting from interfering with a chain case and a float. CONSTITUTION:This planting pawl cleaner 4 for a rush transplanter is driven by the rotation of a cam 14 secured to a crank arm 11 and a driving mechanism for the planting pawl cleaner 4 is arranged on the side opposite to a chain case 16 for a planting arm 3. Pushing operations of the planting pawl cleaner 4 and a pushing rod 2 are simultaneously started and completed to start the pulling operation of the planting pawl cleaner 4 in completing the pulling operation of the pushing rod 2. Furthermore, a driving case 26 for the planting pawl cleaner 4 is arranged at a position without interfering with rush seedlings in the upper part of the planting arm 3.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a construction of a planting nail cleaner which slides back and forth between planting nails of a grazing transplanter.

[0002]

2. Description of the Related Art Conventionally, a technique relating to a planting claw cleaner for a rush transplanter is known, and as shown in FIGS. 7 and 8, the drive mechanism of the planting claw cleaner 30 is a chain case 31 and a planting arm. 32, and a crank arm 35 is fixed to a drive shaft 33 of the chain case 31. One end of the crank arm 35 is pivotally supported by a pivot shaft 34 in the middle of the planting arm 32. A crank lever 36 is attached, and a pushing portion 37 is pivotally supported at the tip of the crank lever 36. Planted nail cleaner 3
0 is the rod portion 38a of the cleaner push rod 38
The rod portion 38a is fixed to the tip end by a nut 39, and the rod portion 38a is supported by the planting arm 32 via a support metal fitting 40 so as to be slidable back and forth. The return spring 41 and the stopper 42 are provided above the rod portion 38a. Is externally fitted, the cleaner push rod 38 is biased rearward by the return spring 41,
The stopper 42 was connected to a push lever 44 via a plate 43.

When the crank lever 36 rotates about the drive shaft 33 and the pressing portion 37 at the tip of the crank lever 36 contacts the push lever 44, the arm portion 38b of the cleaner push rod 38 is planted. With arm 3
2 Rotate about the rotation shaft 45 of the side surface to move the rod portion 38a.
Is pushed down and slides forward, and the planting claw cleaner 30 fixed to the tip of the rod 38a slides forward between the claws 46a and 46a of the planting claw 46. When the pressing portion 37 at the tip of 36 is disengaged from the push lever 44, the urging force of the return spring 41 causes the planting claw cleaner 30 to slide rearward.

[0004]

However, in the above-mentioned prior art, since the planting claw cleaner and the drive mechanism are mounted between the chain case and the planting arm, the drive mechanism has sufficient durability. For this reason, maintenance work such as washing and lubricating with grease must be performed every time the planting work of rush seedlings is performed, and the planting claw cleaner, chain case and float are If the space between the rows is narrow, it may interfere with the planting claw cleaner and the push arm when they are planted, and it may not be possible to optimize the operation timing of the planting claw cleaner. Since the case with the drive mechanism of the nail cleaner often interferes with each other, the growth of grass seedlings varies, making it difficult to produce high quality grass. Than is challenge there is such Mau.

[0005]

The problems to be solved by the present invention are as described above. Next, the means for solving the problems will be described. That is, in the configuration in which the cleaner mechanism is provided on the planting claw of the rush transplanter, the drive shaft is projected from the chain case, the crank arm is fixedly mounted, the cam is fixedly mounted on the crank arm, and the planting is performed by rotating the cam. While driving the attached nail cleaner so that it can slide forward and backward, the drive mechanism of the attached nail cleaner is arranged on the side opposite to the chain case with respect to the implant arm, and at the operation timing of the attached nail cleaner and the push rod, Simultaneously start and complete the push operation of the planted nail cleaner and push rod,
It is configured so that the pulling operation of the planted nail cleaner starts when the pulling operation of the push rod is completed. In addition, in the planting claw cleaner, the case that incorporates the drive mechanism of the planting claw cleaner for sliding the planting claw cleaner by contacting the cam and converting it into sliding of the cleaner push rod is used as the planting arm cleaner. It is placed on the upper part of the plant so that it does not interfere with the grass seedlings you want to plant.

[0006]

Next, the operation will be described. The planting claw cleaner 4 that slides back and forth between the planting claws 1a and 1a of the rush transplanter has a drive mechanism arranged on the side opposite to the chain case 16 with respect to the planting arm 3 so as to be connected to other members. It is driven by rotation of a cam 14 fixed to the crank arm 11 without interference, and at the same time, the push operation of the planting claw cleaner 4 and the push rod 2 for pushing out the rush seedling is started and completed at the same time. To ensure reliable pushing, and when the pulling operation of the push rod 2 is completed, the pulling operation of the planting claw cleaner 4 can be started to prevent the inclusion of foreign matters, and the driving of the planting claw cleaner 4 can be prevented. The case 26 is arranged at a position on the upper part of the planting arm 3 where it does not interfere with the grass seedlings to be planted, so that it is not pressed from above the grass seedlings during the planting work, and the seedlings are not broken. It is possible to uniformly perform planting grass seedlings against.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, the structure of the present invention will be described with reference to the accompanying drawings. Fig. 1 Overall view of hay transplanter, Fig. 2
Is a side view of a main part of the present invention, FIG. 3 is a plan view of the same, FIG. 4 is a view showing the operation timing of the planting claw cleaner and the push arm, and FIG. 5 is a height relationship between the drive case and the planted seedlings. The side view and FIG. 6 are plan views of the same.

The overall construction of the rush transplanter will be described with reference to FIG. The rush transplanter has a work equipment mounting device B at the rear of the traveling device A.
The planting section C is detachably attached via the planting section C, and the planting section C is located above the planting mission case M.
, A chain case 16 is provided so as to project rearward from the planting mission case M, a planting arm 3 is provided at the rear end of the chain case 16, and the planting claw 1 is provided at the tip of the planting arm 3. It has an attached structure. When power is input from the PTO shaft protruding from the rear of the traveling device A to the planting mission case M via the transmission shaft 17, the planting mission case M reciprocates the seedling mounting table 15 left and right. , The planting arm 3 is rotated in synchronism with the reciprocating movement of the seedling mounting table 15, whereby the tip of the planting claw 1 is rotated in an elliptical shape, and the rush seedlings on the seedling mounting table 15 are cut out by a predetermined amount. , Plant it on the field.

2 and 3, the structure and drive mechanism of the planting arm, the planting claw cleaner of the present invention will be described. In the case of even-row planting, the chain case 16, the drive case 12 and the supporting member of the planting claw cleaner 4 are arranged at positions substantially symmetrical with respect to the chain case 16, and the tip of the planting arm 3 is arranged. Planted claw 1 on top
Are fixed by bolts 5 and 5 and branch from the center to the tip of the planting claw 1 into a bifurcated fork-shaped claw 1
a.1a is formed, and a grass seedling to be cut off from the seedling mounting table 15 is sandwiched between the claw portions 1a.1a. Further, a push rod 2 is provided at the tip of the planting arm 3 so as to be expandable and contractible, and a U-shaped or V-shaped push arm 2a in front view is fixed to the tip of the push rod 2 via a guide plate 2b. When the push rod 2 is installed and slides below the planting claw 1 forward, the grass seedlings sandwiched between the claw portions 1a and 1a of the planting claw 1 are pushed out by the push arm 2a and planted in the field. is there.

The tip of a crank arm 11 is pivotally supported by a pivot shaft 20 in the middle of the planting arm 3, and the other end of the crank arm 11 is fixed to a drive shaft 18 projecting from the chain case 16. There is. Also, the planted arm 3
The rear part is rotatably supported by the rear part of the side surface of the chain case 16 via the swinging crank arm 7. When the drive shaft 18 of the chain case 16 is rotated, the planting claw 1 at the upper end of the planting arm 3 moves up and down. It rotates while drawing an elliptical locus.

Next, the structure of the planted nail cleaner will be described. The planting claw cleaner 4 is composed of a plate-shaped member, and the tip portion is bent in a V shape so that a sufficient space is formed between the base side and the planting claw 1. When sliding back and forth between the claw portions 1a and 1a, the fixing bolt 8 of the push arm vibration preventing material 6 provided in the middle portion of the planting claw 1 should be prevented from interfering, and the tip should be semicircular. The push arm 2a is formed into a shape that does not require chamfering and runs along the inside of the push arm 2a.
The foreign matter mixed inside is surely removed.
The cleaner push rod 9 is fixed with nuts 10 in a state where a sufficient space is secured at the tip thereof. The plate-shaped member forming the planting nail cleaner 4 may be made of a material such as a leaf spring or plastic according to the properties of the rush seedling.

Next, the drive mechanism of the planted nail cleaner of the present invention will be described. A cam 14 is attached to the crank arm 11 via a cam attachment member 11a so as to rotate integrally with the crank arm 11, and a drive case in which a drive mechanism for the planting claw cleaner 4 is installed in front of the cam 14. 12 are arranged, and the drive case 12 is fixedly supported on the center upper part of the planting arm 3 by a case fixing metal fitting 23 and a plurality of support bolts 25.

A rotary shaft 13 is rotatably supported in the drive case 12, and one end of the rotary shaft 13 has one end.
2, a first push lever 13a is fixed, and a pressing portion 13b at the tip of the first push lever 13a is fixed.
Is rotatably supported by bearings and is arranged so as to be able to abut on the rotation locus of the cam 14. A second push lever 19 is fixed to the other end of the rotary shaft 13, and a cleaner push rod 9 is connected to the second push lever 19 via a connecting member 21. A return spring 22 is externally fitted to the push rod 9 for biasing the cleaner push rod 9 rearward. A cushion rubber 24 is attached to the rear surface of the second push lever 19, and the cleaner push rod 9 is returned by the return spring 22 to return to the drive case 12.
Relieves shock when abutting against. The cushion rubber 24, the rotating shaft 13, the second push lever 19, the return spring 22 and the like are housed in the drive case 12 to improve the durability. The tip of the cleaner push rod 9 projects from the drive case 12, and the planting claw cleaner 4 is fixed to the tip of the cleaner push rod 9 by the nuts 10 and 10.

With the above structure, the rotation of the drive shaft 18 of the chain case 16 is converted into the elliptic movement of the planting pawl 1 by the crank arm 11, and the cam 1 is further rotated.
4 is rotated and the pressing portion 13 of the first push lever 13a
When pressed against b, the first push lever 13a is pushed down, the rotary shaft 13 is rotated to push down the second push lever 19, and the cleaner push rod 9 is inserted into the drive case 12 via the connecting member 21. The planting claw cleaner 4 pushed out further and fixed to the tip of the cleaner push rod 9 slides forward between the claw portions 1 a of the planting claw 1 and 1 a. The cam 14 is the first
When the push lever 13a is disengaged from the pressing portion 13b, the cleaner push rod 9 is quickly returned to the rear position by the urging force of the return spring 22, and the planting claw cleaner 4 also slides rearward. become.

Further, even if the planting arm 3 is rotated in the reverse direction in the above-mentioned structure, the pressing portion 13b of the first push lever 13a which abuts on the cam 14 is rotatably supported, so that there is no risk of damage and the crank. Arm 11 and cam 1
Since 4 is integrally rotated by the cam mounting member 11a,
It does not damage the grass seedlings by involving the stems of the grass seedlings.

The stroke of the planting claw cleaner 4 is forward of the tip of the planting claw 1 when sliding forward, and the claw portion 1a.
・ It slides to a position where foreign matter between 1a can be completely removed. When sliding backward, the push arm 2a pushes out behind the push arm 2a at the standby position at the rearmost part between the claws 1a and 1a. It slides to the position where the uncut foreign matter can be completely removed.

Referring to FIG. 4, the timing of forward / backward sliding of the planted claw cleaner and the forward / backward sliding of the push arm of the present invention will be described. On one rotation locus of the planting claw 1 in the figure, a position where the planting claw 1 irrigation seedling is cut off from the seedling mounting table 15 is a seedling cutting position, and the planting claw 1 irrigation plant is at the bottom dead center of the rotation locus. The position where the planting is completed is the planting completion position, the position where the push arm 2a is retracted after the planting is completed is the push arm retracting end position, and the top dead center is the top dead center position. .

First, from the time when the planting claws 1 from the seedling mounting table 15 are cut out to the time when they are planted in the field (to).
The push arm 2a slides forward as the planting claw 1 rotates downward. When the push arm 2a reaches the planting completion position, the forward sliding ends. On the other hand, the planting claw cleaner 4 also slides forward as the planting claw 1 rotates from the seedling cutting position to the planting completion position, and when the planting claw 1 reaches the planting completion position, the planting claw cleaner 4 is planted. The push arm 2 for pushing the grass seedling to be sandwiched between the nail portions 1a and 1a of the nail 1.
With a, it is completely extruded and planted in the field.

Next, when the planting of rush seedlings is completed, the push arm 2a starts sliding backward, and when the push arm retracting end position is reached, the backward sliding of the push arm 2a ends. On the other hand, the planting claw cleaner 4 starts sliding backward after the backward sliding of the push arm 2a is completed, and the backward sliding is completed before reaching the top dead center position. Then, the planting claw cleaner 4 starts the backward sliding after the backward sliding of the push arm 2a is completed, so that the mud and other foreign matter in the push arm 2a are surely removed, and the planting of the rush seedling is made constant. This is to do it.

The shape of the drive case of the present invention will be described with reference to FIGS. In the drive case 12 in which the drive mechanism of the planting claw cleaner 4 is installed, the stems may be broken or the planting posture may be disturbed during the planting work of the rush seedlings by interfering with the seedlings to be planted in the field. Therefore, as shown in FIGS. 5 and 6, in the drive case 26 of the present invention, the height H1 of the bottom surface is set to a position higher than the height H2 of the grass seedlings, or the bottom surface of the drive case 26 is inclined. It is constructed so that it does not interfere with the grass seedlings that are to be planted.

[0021]

Since the present invention is configured as described above, it has the following effects. First, since the drive mechanism and the supporting member of the planting claw cleaner are arranged on the side opposite to the chain case with respect to the planting arm, the durability of the drive mechanism of the planting claw cleaner is improved. Also, the maintenance can be easily performed, and since the interference between the planting claw cleaner and the chain case and the float is solved, the sliding timing of the planting claw cleaner can be optimally adjusted.

Secondly, as in claim 2, the timing of the front and rear sliding of the planted nail cleaner and the timing of the front and rear sliding of the push arm are set so that the function of the planted nail cleaner is maximized. Since it is adjusted to, it becomes possible to plant rush seedlings in the field surely and there is no variation in growth, so that high quality rush can be produced.

Thirdly, as in claim 3, since the drive case in which the drive mechanism of the planting nail cleaner is installed is formed in a shape that does not interfere with the grass seedlings already planted in the field, the rush seedlings are planted. It will grow steadily while maintaining its posture.

[Brief description of drawings]

FIG. 1 is an overall side view of a grass transplanter.

FIG. 2 is a side view of a main part of the present invention.

FIG. 3 is a plan view of the same.

FIG. 4 is a view showing operation timings of a planting claw cleaner and a push arm.

FIG. 5 is a side view showing a height relationship between a drive case and an already planted grass seedling.

FIG. 6 is a plan view of the same.

FIG. 7 is a side view of a main part of a conventional grass transplanter.

FIG. 8 is a plan view of the same.

[Explanation of symbols]

 1 Claw with planting 2a Push arm 3 Arm with plant 4 Claw cleaner with planting 11 Crank arm 12 Drive case 14 Cam 16 Chain case 26 Drive case

Claims (3)

[Claims] 1. In a structure in which a cleaner mechanism is provided on a planting claw of an rush transplanter, a drive shaft is projected from a chain case, a crank arm is fixed, and a cam is fixed on the crank arm to rotate the cam. The planting claw cleaner is driven so that it can slide forward and backward, and the drive mechanism of the planting claw cleaner is arranged on the side opposite to the chain case with respect to the planting arm. Nail cleaner. 2. The push rod pulling operation is performed at the same time when the planting claw cleaner and the push rod of the grazing transplanter according to claim 1 are actuated at the same timing. A planting claw cleaner for a rush transplanter, which is configured so that the pulling operation of the planting claw cleaner is started when the above is completed. 3. The planting claw cleaner for a rush transplanter according to claim 1, wherein the planting claw cleaner slides by contacting a cam and converting it into sliding of a cleaner push rod to slide the planting claw cleaner. A planting nail cleaner for a weed transplanter, characterized in that the case that houses the drive mechanism of is placed above the planting arm so that it does not interfere with the plant seedlings that you want to plant.