JPH0444021Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a vertical feed drive device in a seedling stand of a rice transplanter that vertically feeds pine seedlings on the seedling stand by a vertical feed roller.

[Conventional technology]

Conventionally, in the seedling stand of a rice transplanter, the follower cam was rotated by a rotary arm and fitted onto the vertical feed shaft of the vertical feed roller with a clutch and a return spring interposed. Since the rotation angle at which the vertical feed roller rotates is always constant, if the amount of seedlings taken by the planting claw changes, the amount of vertical feed by the vertical feed roller will not adapt. However, there were problems such as feeding too much or too little, and seedlings breaking.

[The problem that the idea aims to solve]

The present invention solves such conventional problems, and by remotely adjusting the amount of seedlings taken by the planting claw, it is possible to feed seedlings in accordance with the amount of seedlings taken. The purpose of this invention is to provide a system that allows seedlings to be fed in a favorable manner and to be carried out suitably without causing seedling collapse or seedling slipping.

[Means for solving problems]

Therefore, in the present invention, an abutment body integrated with the follower cam and a stopper 9 that is fixedly supported on the lower side of the seedling platform and can abut against the abutment body are provided, and the stopper 9 is provided on the side of the abutment body 7. The stopper 9 is constructed so as to be interlocked with the operation lever 35 through multistage locking means and a wire 36, and the stopper 9 is installed so as to be able to freely adjust its forward and backward positions.

[Effect]

Therefore, an abutment body and a stopper 9 are provided, and the stopper 9 is configured to be interlocked with the operation lever 35 via multi-stage locking means and a wire 36 to the side of the abutment body 7. By making the forward/backward position of the roller 9 freely adjustable, the rotation angle range of the follower cam can be adjusted remotely with one touch by adjusting the position of the stopper, and as a result, the rotation angle range of the vertical feed roller can be adjusted. This means that the vertical feed amount of the pine seedlings that come into contact with the vertical feed rollers can be remotely adjusted in one touch according to the condition of the seedlings.

〔Example〕

Next, the embodiment shown in the drawings will be described.

FIG. 2 shows a side view of a riding rice transplanter, in which a planting section B is connected to the rear of a four-wheeled passenger vehicle A via a link mechanism C.
Each planting claw 12 is connected to the rear of each planting case 11 constructed above 0, and each planting case 11
A seedling stand 8 having eight seedling stands 8a each partitioned by ribs 8b is installed diagonally above the seedling take-out plate 13 which is horizontally installed across the top, and is movable laterally. An input bevel gear 15 is provided in the transmission case 14 connected to the front of each planting case 11.
A main shaft 17 with a clutch body 16 interposed therebetween is installed so that transmission can be transmitted from the main shaft 17 to each planting case 11 and via a transverse feed screw 18 to a transmission rod 19. , both outer sides of the transmission rod 19 that reciprocates in the lateral direction are connected to the lower surface side of the seedling stand 8, and the sprocket chain 20 is connected to the main shaft 17.
Both rotary arms 1, 1 are respectively fixed to both ends of a rotary shaft 21 which is mounted on the outside so that transmission can be transmitted through the rotary shaft 21, and the rotary arms 1, 1 are constructed in the same manner as in the conventional structure.

Two openings 22 and 23 are formed at the top and bottom of the lower part of each of the eight seedling mounting surfaces 8a of the seedling mounting stand 8, and upper and lower vertical openings are formed horizontally in parallel to the upper and lower sides of the lower side of the seedling mounting stand 8. The feed shafts 6a, 6 have respective openings 2 at the top.
2 and 23 are respectively fitted and fixed, and below the rib 8b which is one end side of the seedling stand 8, one end side of both vertical feed shafts 6a and 6 are transmission connected via a synchronized belt 24. The structure is the same as the conventional structure.

A metal 26 supported by both bolts 25 is provided below the rib 8b at the center of the seedling platform 8 in the width direction.
At the same time, the middle part of the vertical feed shaft 6 is mounted on the metal 26, and the boss 2a of the upper part of the follower cam 2 is attached to the part of the vertical feed shaft 6 on the side of the metal 26. interposed and fitted,
An abutment body 7, which is a bolt, is screwed onto the tip of the support metal 27 extending from the side of the boss 2a, and a lever 7a is fixed to the rear end of the abutment body 7. A compression spring 28 is fitted between the stay 29 and the stay 29 hanging from the bottom surface of the seedling stand 8.
A support plate 30 is fixed to the support plate 30, and the stopper 9 is fixed to the lower part of the support plate 30 so that the rear part 9a of the stopper 9 extends upward.

Therefore, during rice planting work, the seedling platform 8 is reciprocated in the lateral direction by the transmission rod 19, and each planting claw 12 is planted while scraping the block seedlings, and the seedling platform 8 is moved to one side. When the rotation is finished, one of the rotating arms 1, 1 rotates as shown by arrow A, hits the follower cam 27, expands into the torque spring 4, and moves the follower cam 2 in the direction of arrow B as shown in FIG. On the other hand, when the clutch 3 is engaged, the vertical feed shaft 6 and the vertical feed shaft 6a are rotated by a certain angle, and each vertical feed roller 5 is rotated, so that the vertical feed shafts 6 and 6a are rotated and separated. The pine seedlings will be fed vertically one pitch at a time.

Rotating arm 1 by a certain angle like that
When the follower cam 2 is separated from the follower cam 2, the clutch 3 is turned off by the pressure of the torque spring 4, and the vertical feed shaft 6 remains stationary, and the follower cam 2 rotates in the direction of the reverse arrow B, as shown in FIG. The tip of the unit 7 collides with the stopper 9, at which point the follower cam 2 stops rotating in reverse, and is ready for next operation.

When changing and adjusting the amount of seedlings taken by the planting claws 12, hold the lever 7a and rotate the abutment body 7. This adjustment changes the state in which the abutment body 7 and the stopper 9 collide with each other as shown in D. This changes the rotation angle of the vertical feed roller 5 and adjusts the amount of vertical feed to the seedlings caused by the planting claws 12. This means that adjustments can be made to adapt to changes in the amount taken.

Further, FIG. 7 shows an embodiment of the present application, which is constructed in substantially the same manner as the previous embodiment as indicated by the same reference numerals, but the rear threaded portion 7b of the abutment body 7 is screwed onto the support 27 and fixed. Then, the rear threaded part 9a of the stopper 9 is screwed into the support plate 30 fixed below the seedling stand 8, and the fan-shaped rack 32 is engaged with the pinion 31 fitted to the threaded part 9a. A multi-stage locking groove 34 serves as a multi-stage locking means for the mounted operation case 33.
An operating lever 35 that can be locked to the rack 32 is interlocked with the operating lever 35 via a wire 36 so that the rack 32 can be rotated back and forth.

Therefore, when the operating lever 35 is operated, the fan-shaped rack 32 located at a remote position can be rotated by the wire, and the rack 32 and pinion 3 can be rotated.
1, the threaded portion 9a rotates, and the stopper 9 engages with the support plate 31, causing the stopper 9 to engage the abutment body 7.
It will move forward and backward as shown by arrow C,
Through this adjustment, the rotation angle of the vertical feed roller 5 can be adjusted as in the previous embodiment.

[Effect of idea]

In this way, the present invention includes the abutment body 7 on the follower cam 2 side and the stopper 9 on the lower side of the seedling platform 8,
The stopper 9 is configured to be interlocked with the operation lever 35, multistage locking means, and a wire 36 to the abutting body 7 side, and the stopper 9
Since the position of the follower can be adjusted freely, the rotation angle range of the follower cam can be adjusted remotely with one touch by adjusting the position of the stopper according to the change in the amount of seedlings taken by the planting claw. The rotation angle of the vertical feed roller 5 can be adjusted to suit the seedling, and therefore, the amount of vertical feed of the pine seedlings that come into contact with the vertical feed roller can be adjusted remotely in one touch, depending on the condition of the seedling. It is now possible to perform adaptive and accurate vertical feeding without causing the seedlings to collapse or slide as in the conventional method, and it also eliminates the inconvenience of adjusting the stopper section at the bottom of the back of the seedling stand directly from nearby, making remote control possible. It is said that it is very easy to operate because it can
It has excellent characteristics.

[Brief explanation of the drawing]

Figure 1 is a side view of the main parts of an embodiment of the present invention;
Figure 2 is a side view of the riding rice transplanter, Figure 3 is a top view of part of the seedling stand, Figure 4 shows the inside of the conduction case, Figure 5 is an exploded view of part of Figure 1, and Figure 5 is an exploded view of part of Figure 1. FIG. 6 is an explanatory diagram of the operation of FIG. 1, and FIG. 7 shows another embodiment. 1...Rotating arm, 2...Follow cam, 3...
...One clutch, 4... Return spring, 5... Vertical feed roller, 6... Vertical feed shaft, 7... Collector, 8...
Seedling stand, 9... stopper.

Claims (1)

[Scope of utility model registration request] In a seedling stand for a rice transplanter, which is constructed by fitting a follower cam 2 rotated by a rotary arm 1 onto a vertical feed shaft 6 of a vertical feed roller 5, an abutment body 7 integrated with the follower cam 2 and a seedling stand are provided. A stopper 9 is provided on the lower side of the stand 8 so as to be fixedly supported and can abut against the abutment body 7, and against the abutment body 7 side,
The vertical feed drive is characterized in that the stopper 9 is interlocked with the operating lever 35 through multi-stage locking means and a wire 36, and the stopper 9 is installed so that its forward and backward positions can be adjusted. Device.