JPS582185Y2 - Seedling stopper device for rice transplanter - Google Patents

Description

[Detailed description of the invention] The present invention is equipped with an inclined multi-row seedling platform that moves back and forth from side to side, and a plurality of planting claws that take out one seedling from the seedling platform. A rice transplanter in which a star foil is pivotally supported near the lower end of this inclination, the upper outer periphery of the star foil projects above the upper surface of the seedling platform, and the seedling mats on the upper surface of the seedling platform are sequentially supplied and lowered by intermittent rotation of the star foil. This invention relates to a seedling stopper device.

Generally, a rice transplanter for multi-row planting is provided with a seedling stopper device to prevent seedlings from being wasted during the finishing step of the planting operation (so-called finishing of planting).

For example, in a 6-row rice transplanter, if the number of unplanted rows is 2, a seedling stopper device can be set to prevent the massed seedlings equivalent to 4 rows from being taken out by the planting claws. This prevents wasted seedlings.

Conventionally, as such a seedling stopper device, a seedling weir plate is pivotally attached to the lower end of the seedling stand so that it can be raised and lowered, and the seedling weir plate is erected and rotated at the end of the planting process. , a method in which the seedling mat is moved upward along a seedling stand, and this state is supported by a seedling weir board to prevent the seedlings from being taken out by the planting claws (publication of Utility Model Publication No. 11144/1983), etc. It has been known.

Furthermore, a rice transplanter for multi-row planting has already been devised which is configured to stop the operation of the planting claw itself by turning off the clutch of the two-row single unit instead of using a seedling stopper.

However, in the former case, it is difficult to transfer the seedling mat to a seedling mat with a high moisture content, so the operator must lift the seedling mat upwards. The disadvantage was that one had to go down to the ground to perform such work.

In addition, the latter method had drawbacks such as the front end of the seedling mat buckling due to vibrations during work, and the seedling mat coming off the seedling take-out plate (so-called gai tray) and falling off. .

The present invention solves the above-mentioned conventional drawbacks by pivoting the end of the raising plate of the seedling mat that separates the seedling mat from the star foil to the lower surface of the seedling stand, and making it possible to raise and lower this plate on the raising plate. In addition to connecting a lifting and raising plate undulating rod to be fixed and operated, an opening for raising and lowering the raising and raising plate is bored in the seedling stand, and the seedling mat is lifted and held above the star foil from the lower end side by the raising and raising plate. Even if the seedling mat has a high moisture content, the seedling mat can be safely lifted and maintained at a position away from the seedling take-out plate and star foil by operating the rondo, and if the rice transplanter is configured as a riding type, the operator can To provide a seedling stopper device for a rice transplanter which allows such operations to be easily performed from the driver's seat without having to go down to the field, and which is free from the risk of causing scandals such as buckling of the front end of the seedling mat. It is something.

Hereinafter, an example in which the present invention is applied to a riding rice transplanter will be described in detail. Fig. 1 is a left side view of the rice transplanter;
is a running vehicle body, and this running vehicle body 1 has a front vehicle body 2, a rear vehicle body 3, and swing cases 4 on both left and right sides of one vehicle body 2.
4, and a running front vehicle body 7, 7, etc., which is mounted on both left and right sides of the other vehicle body 3 via a swing case 6.6. Each car body 2
．． Pivot pins 10 and 10 are attached between brackets 8 and 9 extending from 3 toward the other vehicle body, so that each of the vehicle bodies 1 and 2 can be bent horizontally.

Further, a driving transmission (not shown) is built into the front vehicle body 2 formed in a sealed box shape, and a steering device 12 including an operation handle 11 (tilt handle) is installed at the top of the vehicle body 2. Further, a driver's seat 13 is provided behind the steering wheel 11, and the driver's seat 13 is attached to the front vehicle body 2 via a gate-shaped safety frame 14.

On the other hand, a support stand 15 is connected to the rear vehicle body 3 formed in the shape of a closed box, and an air-cooled 4-cycle gasoline engine 16 is mounted on the support stand 15. A preliminary seedling mounting stand 18 on which is placed is positioned, and the seedling mounting stand 18 is rotatably attached to the frame 14.

The power transmission between the front and rear vehicle bodies 2 and 3 is carried out between the above-mentioned upper and lower pivot pins 10 and 10.
, 3 protruding from two pairs of Barfield type universal joint shafts 1
9.20, while the support stand 1
A rear hitch 21 to which a trailer or the like is connected is provided at the rear end of the vehicle.

Note that 22 and 23 are the front and rear paddy wheel fenders in May and July.

A three-point link mechanism 24 is located in front of the front vehicle body 2 for traveling.
The planting device 25 is installed so as to be movable up and down.

Here, the planting device 25 includes a traveling float 26, a planting transmission case 27, an inclined seedling platform 28 with a low front and a high rear,
- A planting claw 29 for taking out and planting seedlings, a cylindrical shaft 30 for transmitting power to the transmission case 27, and a bumper 31 connected to the cylindrical shaft 30 and the transmission case 27.
, a streak marker 32 provided on the bumper 31 in a freely undulating manner, and a center marker 33 and side markers 3 attached to the center and both left and right sides of the bumper 31.
4.34 etc.

Further, the three-point link mechanism 24 includes a top link 35 and lower links 36, 36, and supports the transmission case 27 on the front body 2 via these links 35, 36, and also supports the transmission case 27 on the front body 2. The lift arm 37 is connected to a hydraulic device (not shown) attached to the , and a lift rod 3B is connected between the front end of the arm 37 and the lower link 36.36.
3B is stretched, and the entire planting device 25 is moved up and down.

Further, a gear case 39 is provided at the center of the cylindrical shaft 30, and an input shaft and a front vehicle body 2 are provided with a gear case 39 projecting from the case 39.
The PTO shaft protruding from the PTO mission case in
It is configured to transmit power to each part of 5.

As shown in FIG. 2, the seedling platform 28 has a sliding rail 41 fixed to its lower surface at the middle of the slope, and a seedling receiving plate shoe 42 fixed to the lower surface of the sloped lower end of the rigging 28. , sliding bodies 43, 44 are provided in the recesses of these elements 41, 42.
It is constructed so that it can reciprocate in the lateral direction while facing up.

Here, one sliding body 44 is integrally formed with a seedling take-out plate, so-called guide rail 45, whose end surface is L-shaped.
6 is horizontally mounted, and a large number of star foils 47 are attached to this shaft 46.
The upper outer periphery of the foil protrudes from the upper surface of the seedling stand 28.

Next, referring to FIGS. 2 and 3, the specific structure of the seedling stopper device, which is the core of the present invention, will be described. A pivot shaft 49 is horizontally mounted, and a seedling mat elevating plate 50 having a curvature shape that moves the seedling mat P away from the star foil 49 is mounted on the pivot shaft 49.
It is pivoted at the upper end of the.

This seedling mat raising plate 50, so-called seedling stopper, has its lower end extended near the inclined lower end 1 of the seedling platform 28, and has an opening 28a for raising the iron plate 50 upward (clockwise).
is formed by drilling in the seedling stand 28.

A protruding piece 51 is fixed to the lower surface of the twisted seedling mat elevating plate 50, and a elevating plate hoisting rod 53 is connected to this protruding piece 51 via a lever 52.

Here, the lower end 52a of the lever 52 is configured to move up and down as appropriate along the elongated hole 54a of the guide plate 54, and the guide plate 54 is fixed to the back surface of the seedling stand 28.

Furthermore, the elevating plate undulating rod 53 is for raising/lowering and fixing the elevating plate 50, and the lower end 53a of the rod 53 is pivotally connected to the lower end 52a of the lever 52,
The upper part of the lever 52 is loosely inserted into a long hole 55a of a guide plate 55 protruding from the seedling stand 28.

A locking piece 56 is fixed to the middle part of the elevating plate undulating rod 53, and the rod 5 is fixed to the lower surface of the guide plate 55.
3, and a spring 58 is stretched between the spring receiver 57 and the locking piece 56, and the lower end 53a of the rod 53 and the lower end 52a of the lever 52 are inserted into the elongated hole 54a.
It is configured so that it is always pushed down to the lower end position inside.

Furthermore, a stopper 59 is attached to the back surface of the seedling stand 28 for engaging a locking piece 56 provided on the rod 53.

The present invention is constructed as described above, and its operation will be explained below.

(1) In the finishing step of the planting work, the operator lifts the elevating plate undulating rod 53 upward against the spring force of the spring 58, and engages the locking piece 56 fixed to the rod 53 with the stopper 59. Then, the lower end 52a of the lever 52 moves upward along the elongated hole 54a, so the seedling mat raising plate 50 rotates by a predetermined amount clockwise about the pivot shaft 49 as shown in FIG. , the seedling mat P on the plate 50 is lifted and maintained in a horizontal position away from the seedling removal plate 45 and star foil 47.

In addition, the lifting plate undulating rod 53 is once pulled upward against the spring 58, and the locking piece 53 is held against the stopper 59.
When the rod 53 is returned to its original position after releasing the engagement of the seedling mat lifting plate 50, the seedling mat raising plate 50 returns to its original position as shown in FIG.

As is clear from the embodiments described above, the present invention includes an inclined seedling platform 28 that can be moved back and forth from side to side, and a planting claw 29 that takes out one seedling from the seedling platform 28. A star foil 47 is pivotally supported near the lower end of this slope on the lower surface of 28, and the upper outer periphery of the star foil 47 protrudes from the upper surface of the seedling platform 28, so that the seedling pine) P on the upper surface of the seedling platform 28 is attached to the star foil 4.
In the structure in which seedling mats are sequentially supplied and lowered by intermittent rotation of 7, the end of a seedling mat elevating plate 50 that separates the seedling mat P from the star foil 47 is pivoted to the lower surface of the seedling platform 28, and this elevating plate 50 is An elevating plate undulating rod 53 for undulating and fixing the elevating plate is connected, and an opening 28a for elevating the elevating plate 50 is bored in the seedling platform 28, and the seedling mat is placed above the star foil 47 by the elevating plate 50. The device is configured to lift and hold the seedling mat P from the lower end side, and even if the seedling mat P has a high moisture content, the seedling take-out plate 45 can be removed by operating the rod 53.
and a seedling pine in a position away from the star foil 47)P
The rice transplanter can be safely lifted and maintained, and the desired number of seedlings can be reliably stopped. In addition, if the rice transplanter is configured as a riding type, the operator can lift and maintain the rice transplanter from the driver's seat 13 without having to get down to the field. This operation can be easily performed, and furthermore, it is possible to prevent scandals such as buckling of the front end of the seedling mat P, and has remarkable effects such as being extremely practical.

Although the above embodiments have been described using a riding type rice transplanter as an example, it goes without saying that the present invention may be applied to a traveling type rice transplanter.

[Brief explanation of drawings]

Fig. 1 is a left side view of a rice transplanter showing an embodiment of the present invention, Fig. 2 is an enlarged side view of the main parts of Fig. 1, and Fig. 3 is an enlarged side view for explaining the operation of the main parts. . 28... Seedling stand, 29... Planting claw, 2
8a...Opening, 47...Star foil, 50...Seedling mat raising board, 53...
Raising and raising plate undulation rod, P... Seedling pine tree.

Claims (1)

[Scope of utility model registration request] A tilted seedling stand 28 that moves back and forth left and right, and the seedling stand 2
A star foil 47 is pivotally supported near the inclined lower end of the lower surface of the seedling platform 28, and the upper outer periphery of the star foil 47 is attached to the seedling platform 28. In a structure in which the seedling mat P on the upper surface of the seedling platform 28 is sequentially supplied and lowered by the intermittent rotation of the star foil 47, the upper part of the seedling mat elevating plate 50 which separates the seedling mat P from the star foil 47 is provided. is pivotally attached to the lower surface of the seedling platform 28, and an elevating plate hoisting rod 53 for lifting and fixing the elevating plate 50 is connected to the elevating plate 50.
The rice planting is characterized in that an opening 28a for zero undulation is formed in the seedling platform 28, and the raising plate 50 lifts and holds the seedling pine above the star foil 47 from the lower end side thereof. Machine seedling stopper device.