JPS62253307A - Plantation apparatus - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a transplanting device installed in a rice transplanter or a vegetable transplanter. The present invention relates to a transplanting device in which the seedling planting claw provided on the seedling transplanting device is configured to draw a long loop-shaped transplanting locus in the vertical direction when viewed from the side.

[Prior art and its problems]

Previously, JP-A-61-5712 and JP-A-60-24
As disclosed in Japanese Patent No. 4215, there is a shaft on the side surface of the rotating case that rotates at the same rotation speed as the rotating case while being separated from the rotating case, and a first shaft that is integral with the rotating case and that is aligned with the axis of the shaft. @The other shaft of the heart is made to protrude in the form of a double shaft, and the transplant case main body is fixed to the above-mentioned shaft, and the seedling feeding stand is attached to the other shaft with the seedling dividing transplant claw attached to the transplant case main body. A transplanting device is known which is equipped with an actuating cam body of a release mechanism that releases split and clamped seedlings from the sides.

However, in this transplant device with a conventional structure, the shaft and the transplant case body are simply attached as one piece, so the rotation of the transplant case body with respect to the shaft cannot be adjusted. There were problems in that it was impossible to change and adjust the transplant trajectory and that it was impossible to change and adjust the amount of seedling division. Therefore, in order to solve the problems of this conventional device, it became necessary to provide a mounting device between the shaft and the transplant case body that allows the rotation of the transplant case body to be adjusted with respect to the shaft. .

[Technical means to solve problems]

The present invention has taken the following technical measures to solve the problems of the prior art described above.

[Function and effect of the invention]

According to this invention, in order to change and adjust the amount of seedling division, the locking state of the locking bolt 44 of the adjustable displacement prevention mechanism is released, and the transplant case main body 40a is attached to the mounting bracket 42 fixed to the first shaft 34. After loosening the set bolt 43, adjust the rotation as appropriate and fix it again with the set bolt 43, and then attach it using the locking bolt 44, which is an adjustable slippage prevention mechanism, to prevent the transplant case body 40a from rotating in the counter-rotational direction. It is preferable to set the metal fitting 42 and the transplant case main body 40a so that they are locked together.

Through this adjustment, the present invention allows the amount of seedling division to be adjusted, and once adjusted, the transplant case body will not be unexpectedly shifted from the axis, and the amount of seedling division will not be deviated during the planting operation. Work effectively.

〔Example〕

DESCRIPTION OF THE PREFERRED EMBODIMENTS A transmission device for a transplanter which is an embodiment of the present invention will be described in detail based on the drawings.

Reference numeral 1 is a passenger towing vehicle, in which a front transmission case 3 and a rear transmission case 4 are provided below a flat control step floor 2, and a front axle case is installed on both left and right sides of the rear side of the front mission case 3. A pair of left and right front wheels 5°5 are provided to be rotated by transmission, and transmission cases 6.6 are provided on both left and right sides of the rear transmission case 4.
Attach the rear wheel 7.7 and install the step floor-2.
A frame body 8 for attaching an operating lever etc. is provided upright on the front part of the frame body 8, and a handle 9 is provided to this via a steering post,
A cover 11 covering an engine 10 is provided behind a handle 9, and a control seat 12 is mounted on the cover 11.

Reference numeral 13.13 denotes columns, which are erected on the connecting frame 14 connecting the left and right transmission cases 6.degree. 6 at a predetermined interval from side to side.

Reference numeral 15 is a lifting link, and a pair of left and right lower links 15a, 15
a and the base side of the single upper link 15b is the support column 13.1.
3 via a pin, and the distal end side is connected by a vertical link 16, and the elevating link IS is configured to be moved up and down by a hydraulic cylinder device 17.

Reference numeral 18 denotes a transplanting machine, which is made up of a transmission case 19, a seedling feeding table 2o that reciprocates from side to side, a transplanting device 21, and soil leveling floats 22, 23, 23, etc. at the center and sides. is attached to a supporting body 24 integral with the vertical link 16 via a support shaft 25 so as to be able to roll freely. The transmission case 19 includes a main transmission case 19a, sub-transmission cases 19b, 19b, 19b extending vertically, and vertical transmission cases 19c, 19c, 19c extending rearward.

Reference numeral 26 denotes a seedling receiving frame, which extends laterally along the lower end of the seedling supply table 20, and has a seedling dividing opening 27° 27 through which the seedlings placed in the seedling supply table 20 can be divided. ... has been established.

The transplant device 21 is composed of the following members. That is, a drive shaft 28 protruding in the direction of the outer lateral force is mounted on the longitudinal transmission case 19c so as to be rotated as appropriate. The rotating case 29 is made of aluminum alloy or synthetic resin, but when installing the drive shaft 28, an iron spinneret 29a is attached to the insertion part of the drive shaft 28.
is provided to prevent the shaft and rotating case from wobbling, and a rotating case 29 is wedged to the drive shaft 28 so that the rotating case 29 is rotated integrally with the drive shaft 28. 30 is a fixed metal whose base is fixed to the transmission case 19 with a bolt 30b, and whose distal end extends into the rotating case 29 so as to wrap around the drive shaft 28. And, on the tip side of this fixed metal 30, there is an engaging part (claw).
30a is provided. Reference numeral 31 denotes a sun gear as an example of a gear on the drive side, a boss portion of this gear 31 is fitted onto the drive shaft 28, and an engaging portion (claw) 31a is provided on the negative side of the sun gear.
is provided, and the engaging portion 31a and the front fixing metal 3
The sun gear 31 is provided in such a way that the sun gear 31 is housed within the rotating case 29 without rotating when the engaging portion 30a of the sun gear 31 is engaged with the engaging portion 30a of the sun gear 31. The sun gear 31 is provided so that its center is eccentric with respect to the axis A of the drive shaft 28.

32. 32 is a counter gear that meshes with the sun gear 31 and is rotated by the rotation of the rotating case 29.

A planetary gear 33.33 is wedged on a first shaft 34.34 rotatably supported by the case 29, and this gear 33 meshes with the counter gear 32.

The numeral 35 designates a rebound resistance arm for eliminating backlash caused by backlash when the first shaft 34, which is rotationally transmitted, is engaged and transmitted by gears, and is used to press the eccentric rotating body 36 wedged on the first shaft 34. be. 37 indicates a spring.

Reference numeral 38 denotes a second shaft, which is integrally formed with the cam body 39 in the illustrated example.This shaft 38 is a cylindrical shaft, and is connected to the first shaft 34.
The rotating case 29 is inserted into the rotating case 29 with a part of its base side having a rectangular shape and being inserted into the square hole of the rotating case 29.
It is set up so that -1 body rotates.

Reference numeral 40 denotes a seedling transplanter, and a case main body 40a is fitted with a square shaft on the tip end side of the first shaft 34 and is fixed to a mounting bracket 42 fixed by a knot turbine 41 with bolts 43 and 43.
Seedling dividing and transplanting claws 43a are provided in the structure.

The bolt insertion hole on the mounting bracket 42 side is an arc-shaped long hole 42a centered on the first shaft 34 when viewed from the side, and when the bolt is loosened, the case body 40a rotates a predetermined amount around the axis. It is configured so that it can be moved. Moreover, the mounting bracket 42 is provided with a protrusion 42a, into which a locking bolt 44 is screwed, and the bolt's head is attached to the case body 40a.
It is configured so that it can come into contact with the protruding outer wall surface 40c of the. 4
5 is a nut for turning.

The cam body 39 is housed inside the case body 40a mounted in this manner.

46 is a seedling extrusion device which is an example of a seedling release mechanism, and a pusher 48 is attached to the lower end of a shaft 47 provided on the case body 40a so as to be movable up and down, and the shaft 47 is provided between the cam body 39 and It is configured to be moved up and down intermittently using a lever 49. Reference numeral 50 indicates a rotation support shaft, and reference numeral 51 indicates a pressing spring.

Next, to explain the operation of the upper side, when seedlings are placed on the seedling supply stand 20 and each part is driven by the engine 10, the passenger tractor 1 is propelled by the rotation of the front shaft 5 and rear wheels 7, and the transplanter 1
The load is partly received by the earth leveling floats 22, 23, and 23, and the power is transmitted from the front transmission case 3 side to the input shaft in the transmission case 19 via the transmission shaft. In this way, power is transmitted from the input shaft inside the transmission case 19 to the drive shaft 28 via an appropriate transmission route. Then, each rotating case 29 rotates, and with this rotation, a counter gear 3 is formed around the sun gear 31.
2.32 is planetarily rotated, and the planetary gears 33 and 33 that mesh with this are also rotated.

Therefore, the first shaft 34 is rotated by the gears 33 and 33, but although the rotation speed is the same as that of the rotating case 29, the circumferential speed of rotation varies and the first shaft 34 is rotated with a deviation. The reason is that the sun gear is 31 and the excess counter gear is 32.3.
2. This is because the excess gear 33.degree. 33 is an eccentric gear, and also because the number of teeth of the sun gear 31 and the excess gear 33 are the same.

Therefore, the transplant case main body 40a attached to the first shaft 34 via the mounting bracket 42 swings relative to the rotating case 29, and the seedling dividing transplant claws 43a attached to the case main body 4a are rotated. The transplant locus P drawn by the tip becomes a closed loop that is slightly longer in the vertical direction.

Then, this transplant claw 43a intervenes from above to below into the seedling dividing opening 27 of the seedling receiving frame 26 on the side of the seedling supply table 2o, and divides and engages the single seedling that has been delivered here. Move downward. At this time, the upper surface of the seedling is received by the seedling pusher 48. The seedlings thus transported to the soil surface are moved by a pusher 48 provided at the tip of a shaft 47 operated by a cam body 39.
Due to the downward movement of the soil, it will be pushed out into the soil and transplanted.

Next, we will explain the means for changing and adjusting the amount of seedling division. First, loosen the locking nut 45, turn the locking bolt 44, and remove the head of the bolt from the engaging wall surface 40c of the case body 40a. spaced apart.

Next, after loosening the set bolts 43, 43, the case body 40a is rotated about the axis relative to the mounting bracket 42. In this case, when increasing the amount of seedling division, the first shaft 34 is rotated in a direction opposite to the rotating direction of the first shaft 34 so that the tip of the transplant claw 43a swings in the direction of the arrow C.

On the other hand, when reducing the amount of seedling division, it is preferable to rotate the first shaft 34 in the rotational direction so that the tip of the transplant claw 43a swings in the direction opposite to the arrow C.

While adjusting in this way, the case main body 40a is fixed to the mounting bracket 42 with the set bolts 43°43. However, if left as is, the set bolts 43° 43 are likely to loosen. That is, when resistance is applied to the transplant claw 43a during seedling division and transplantation, a rotational reaction force is applied to the case body 40a, causing the set bolt 43.
43 will become loose.

Then, the amount of seedling division increases gradually, and if this becomes extreme, a situation may occur in which the transplanted claw 43a collides with the seedling division opening 27.

By the way, such an unexpected situation can be reliably prevented by the locking bolt 44 screwed into the mounting bracket 42 side being engaged with the protruding outer wall surface of the case body 40a. does not occur.

Therefore, even after long-term use, the amount of seedling division does not change unexpectedly and the seedling division is performed accurately.

[Brief explanation of drawings]

The figures show one embodiment of the present invention, in which Fig. 1 is a partially sectional side view, Fig. 2 is a plan view, and Fig. 3 is a plan sectional view.
Fig. 4 is a side view of the main part with a partial cross section, Fig. 5 is a side view of the rotating case with the case open, Fig. 6 is a plan view of the main part, and Fig. 7 is a view of the main part with the casting fitting 29a removed. It is a slope view. In the figure, 29 is a rotating case, 34 is a first shaft, 38 is a second shaft, 39 is a cam body, and 40 is a seedling transplanter. 40a indicates a case body.

Claims (1)

[Claims] A first shaft 34 that protrudes from the side surface of the distal end of the rotating case 29 and is attached so that the peripheral speed of rotation changes while having the same number of rotations with respect to the rotation of the rotating case 29, is provided with a seedling dividing transplanting claw 43a. To mount the seedling transplanting device 40 having an operating mechanism for holding or releasing seedlings, a mounting fitting 42 is provided on the first shaft 34 via a rotation stopper, and the case body 40a of the seedling transplanting device 40 is attached to the fitting 42. A second shaft 38 for the actuating mechanism is integrally attached to the case body 40a and is coaxial with the first shaft 34. A cam body 39 is provided in the case body 40a, and an adjustable slippage prevention device is provided between the mounting bracket 42 and the case body 40a to prevent the case body 40a from rotating in the opposite direction to the rotation of the first shaft 34. A transplant device equipped with a mechanism.