JPS6240961B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides an extrusion rod for separating seedlings held by a planting claw, which is provided in a movable case for holding a planting claw so as to be movable in and out of the movable case. A swing lever for moving in and out of the movable case is provided so as to swing by a rotating cam against the biasing force of a spring that biases it in one side in the swing direction. Regarding a seedling planting device equipped with a resin stopper that restricts the range of biasing swing of a lever, the purpose is to reduce noise through simple modification.

More specifically, the above-mentioned seedling planting device attempts to stabilize the planting posture by forcibly pushing out and separating the seedlings held by the planting claws using an extrusion rod. It is a thing, and moreover,
By using a rotating cam to swing the swinging lever for operating the pushing rod against the biasing force of a spring, the rod can be quickly extended and retracted at a predetermined timing. Furthermore, by restricting the biasing swing range of the swing lever with a resin stopper, vibrations are alleviated and noise is reduced. Since the swing lever is mounted so as to catch the free end of the swing lever, which moves at a fairly high speed, there is a problem in that it is difficult to sufficiently reduce the noise.The present invention solves this problem. It is something that I try to do.

Embodiments of the present invention will be described in detail below with reference to illustrative drawings.

As shown in FIGS. 1 and 2, there is a tilted seedling stand 1 that is reciprocated horizontally with a constant stroke, a swinging arm 3 that is pivotally supported on the planting mission case 2 so as to be able to swing back and forth, and the above-mentioned A crank arm 4 rotatably supported by the transmission case 2, a movable case 5 for holding planting claws supported in a vertically circulating manner by the swing arm 3 and the crank arm 4, and the movable case 5 for holding the planting claw. A planting claw 6 supported in a cantilevered manner is provided on the case 5, and the planting claw 6 is configured to move vertically in circulation between the lower end of the seedling stand 1 and the mud. In addition, a push-out member 7 for separating the seedlings held by the planting claws 6 is provided.
The extrusion rod 7 with a is attached to the movable case 5.
A swinging lever 8 is supported in the movable case (5) and has a free end pivotally supported on the inner end of the case of the rod 7 so as to be swingable about the horizontal axis X. A spring 9 is provided to support the lever 8 and urge the lever 8 in a swinging direction corresponding to the protruding direction of the rod 7,
Further, the swinging lever 8 is urged to swing when the planting claw 6 reaches near the bottom dead center, and then swings against the urging force before the planting claw 6 reaches the top dead center. A rotary cam 10 is fixed to the crank arm 4, and is operated to maintain the swinging state until the pawl 6 reaches near the bottom dead center. When the claw 6 reaches near the dead center, it is in the protruding state, and then, by the time the claw 6 reaches near the top dead center, it is retracted to a backward swinging state, and the claw 6 is maintained in the backward swinging state until it reaches near the bottom dead center. It is configured to perform a retreat operation.

In short, a seedling corresponding to one plant is taken out from the lower end of the seedling placed on the seedling stand 1 using the claw 6, and the taken out seedling is transferred between the claw 6 and the pushing member 7a.
The seedling is brought into the mud while being supported by the support, and in this brought-in state, while repeating the operation of separating the seedling from the claw 6 with the extrusion member 7a,
It is configured to carry out seedling planting work.

A resin stopper 11 that restricts the biasing swing range of the swing lever 8 is attached to the movable case 5 in such a manner that it receives a portion of the swing lever 8 near the pivot portion. It is constructed so that the lever 8 being moved can be received with less vibration and less noise.

The support member 12 of the stopper 11 can be adjusted in position relative to the wall of the movable case 5 in the swinging direction of the lever 8 with its operating portion 12a exposed so that it can be rotated from the outside. By screwing together and holding the stopper 11, the lever-receiving position of the stopper 11 can be changed in the lever swinging direction from outside the case.

Incidentally, in carrying out the present invention, the swing lever 8
It may be implemented by configuring it so that it is biased by a spring 9 in a direction corresponding to the retiring side of the extrusion rod 7.

In summary, the seedling planting device according to the present invention is characterized in that, in the structure described above, the stopper 11 is attached to receive a portion of the swing lever 8 near the pivot portion.

That is, when the stopper 11 restricts the biasing swing range of the swing lever 8, we focused on the fact that the more the stopper 11 catches the lever part that moves slowly, the more noise can be reduced. Since the portion of the swinging lever 8 near the pivot point is made to receive it, noise can be reliably reduced, and a simple modification of changing the position of the stopper 11 relative to the swinging lever 8 can The above-mentioned problems have been solved, and a seedling planting device that can be used even better has been obtained.

[Brief explanation of the drawing]

The drawings illustrate embodiments of the seedling planting device according to the present invention, and FIG. 1 is a longitudinal side view of the seedling planting device, and FIG.
The figure is a longitudinal sectional side view of the seedlings in a state of extrusion. 5... Movable case for holding planting claws, 6... Planting claws, 7... Extrusion rod, 8... Rocking lever, 9
... Spring, 10 ... Rotating cam, 11 ... Stopper.

Claims (1)

[Scope of Claims] 1. A push-out rod 7 for separating the seedlings held by the planting claw 6 is provided in a movable case 5 for holding the planting claw so as to be movable in and out. A swing lever 8 for moving the movable case 7 in and out is provided so as to swing by a rotary cam 10 against the biasing force of a spring 9 that biases the movable case 5 in one side in the swing direction. The seedling planting device is provided with a resin stopper 11 for regulating the biasing swing range of the swing lever 8, wherein the stopper 11
A seedling planting device characterized in that the swing lever 8 is mounted in such a manner that it receives a portion near the pivot portion of the swing lever 8. 2. The seedling planting device as set forth in claim 1, wherein the stopper 11 is mounted so as to be adjustable in position in the direction in which the swing lever 8 swings.