JPH0753453Y2 - Seedling storage structure of rice transplanter - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a seedling storage structure of a rice transplanter.

[Conventional technology]

In rice transplanters, it has been possible to obtain seedlings so that the seedlings can be supplied automatically when the seedlings are consumed, and the weight of seedlings can be used to obtain a simple structure.
There was one disclosed in Japanese Patent No. 17926.

That is, a preliminary seedling setting part is continuously provided on the upper end side of the main seedling setting part, a sub-seedling setting part is arranged above the preliminary seedling setting part, and the seedling is slid from the auxiliary seedling setting part to the main seedling setting part. Set the guide stand to the descending position in which the free end side rests on the seedling surface of the main seedling stand, and the free end side is in an upward position in which it rises above the seedling surface of the main seedling stand, and the horizontal axis of the auxiliary seedling stand side. It is provided so as to swing around the core. Then, the stopper that prevents the preliminary seedling placed on the preliminary seedling placing part from sliding down on the main seedling placing base is lowered so that the free end side contacts the lower end portion of the preliminary seedling, and It is connected to the guide so as to swing and change to a raised posture so as to allow sliding and to swing integrally with the guide. When the seedlings to be placed on the main seedling stand are set with the upper end side of the seedling resting on the guide table and the auxiliary seedling stand, the remaining amount of the seedlings placed on the main seedling stand is more than the set value. While it is large, the upper part of this seedling is placed on both the auxiliary seedling stand and the guide, or only on the guide, and due to the weight of the placed seedling, the guide is maintained in the lowered posture. Thus, the seedlings are slid down and guided, and the stopper is maintained in the lowered posture to perform a predetermined stop action. And
When the remaining amount of seedlings reaches the set value, the seedlings are no longer placed on the guide and the weight of seedlings does not act on the guide, and the guide is automatically switched to the ascending posture due to the biasing force of the restoring spring. By opening the passage for descending the preliminary seedling, the stopper is in the ascending posture to release the stop action, and the preliminary seedling is automatically slid from the preliminary seedling stand to the main seedling stand.

[Problems to be solved by the device]

In the case of the conventional structure, the gap between the upper end of the remaining seedlings and the lower end of the spare seedlings in the spare seedling stand becomes large when the remaining seedlings on the main seedling stand reach the set value for supply, and seedlings are supplied. In this case, the spare seedling that slides from the seedling stand to the main seedling stand impacts the remaining seedlings on the main seedling stand, resulting in significant compressive deformation and collision damage to the remaining seedlings and supplemented seedlings. was there.

An object of the present invention is to modify so that automatic replenishment can be done by utilizing the weight of seedlings to simplify the structure and avoid shocking seedling contact.

[Means for Solving the Problems]

The feature of the seedling storage structure of the rice transplanter according to the present invention is that the main seedling stand is located above the rear end side of the main seedling stand in a front-lowering inclined position, which is located lower toward the front end side in the seedling feeding direction. With the support seedlings of the mounted seedlings, a preliminary seedling stand is provided to receive the upper side of the preliminary seedlings while receiving the bottom soil surface side of the preliminary seedlings in the forward descending inclined posture, and The stopper is fixed to the main seedling stand to prevent the preliminary seedling from sliding off the preliminary seedling stand by contacting the bottom soil edge of the inclined lower end of the preliminary seedling to be received. In the state where the above-mentioned seedling is not present on the lower surface side of the soil bed of the spare seedling, the spare seedling comes off the stopper due to its own weight and slides down from the spare seedling stand on the seedling surface of the main seedling stand. Form the preliminary seedling stand and the stopper Lies in the fact that there. The action and effect are as follows.

[Action]

Until the remaining amount of seedlings on the main seedling stand reaches the set value, the foliage of the seedlings placed on the main seedling stand exists on the lower surface side of the soil bed of the preliminary seedlings. The seedlings will be received on the stalks and leaves of the above-mentioned seedlings through the seedling stand or directly, and the edge of the soil on the bottom edge of the preliminary seedling will come into contact with the stopper to be received. Therefore, regardless of the downward movement of the seedlings in the vertical feeding direction due to the consumption of the placed seedlings, the bottom soil surface side of the spare seedlings should not drop by its own weight on the seedling surface of the main seedling stand, and It is in a state of being supported by each of the placed seedling, the stopper and the preliminary seedling stand so that it does not slide down in the vertical feeding direction. Then, when the remaining amount of the seedlings placed on the main seedling stand reaches the set value, the foliage of the seedlings described above disappears from below the spare seedlings, and the seedlings of the above described seedlings are received on the bottom surface side of the bed soil. Disappears, the lower end of the slope of the preliminary seedling falls on the seedling surface of the main seedling stand and at its own weight down to a position located immediately near the rear side of the upper end of the above-mentioned seedling in the vertical feed direction. As the weight of the reserve seedling lowers, the edge of the soil on the bottom edge of the slope of the reserve seedling disengages from the stopper and the stopper is no longer received, so that the reserve seedling slides down on the main seedling stand in the vertical seedling feeding direction. It becomes possible to do. As a result, as the above-mentioned set seedling is further consumed and moves downward, the spare seedling slides from the spare seedling stand to the main seedling stand by its own weight so as to follow this.

In addition, the reserve seedlings are in a forward-downwardly inclined posture, and the top end side of the slope is a stand for the reserve seedling, the bottom end portion of the slope is a stopper, and the bottom surface side of the bed soil is a receiving seedling and is supported. Therefore, the load of the preliminary seedling is distributed into the load component applied to the preliminary seedling stand on the upper end side of the slope, the load component applied to the stopper on the lower end side of the slope, and the load component applied to the foliage of the placed seedling. In other words, the load of the preliminary seedlings on the foliage of the placed seedlings is reduced by receiving the upper end side of the preliminary seedlings by the preliminary seedling stand, and the floor soil edge on the inclined lower end side of the preliminary seedlings is reduced. Only the load component is further reduced by receiving it with the stopper.

[Effect of device]

Since the load of the preliminary seedling on the foliage of the placed seedling can be greatly reduced, the restoring force of the placed seedling against crushing (strong restoring force peculiar to seedlings) is used to receive and hold the underside of the soil bed of the seedling. By using this, it is possible to automatically receive the preliminary seedlings by placing the seedlings on the main seedling stand, and by lowering the weight of the preliminary seedlings to the main seedling stand due to the disappearance of this receipt (consumption of seedlings). Can be replenished. Therefore, the structure can be simplified so that a sensor for detecting the replenishment timing and an actuator for replenishing the preliminary seedling are not required. Moreover,
It is possible to replenish reserve seedlings by contacting the soil edge edge of the bottom edge of the slope with the soil edge edge of the top edge of the slope of the residual seedling, or by allowing it to come very close to the soil edge of the residual seedling. Since the distance between the upper end and the lower end of the spare seedlings is increased and the shocking collision of the spare seedlings with the residual seedlings does not occur, it is possible to suppress the deformation and collapse of the seedlings due to the seedling supply.

〔Example〕

 Next, examples will be shown.

As shown in FIG. 4, in the rear part of the self-propelled aircraft provided with wheels (1), engine (E), steering wheel (2), and the like,
Two seedling planting arms (3) arranged side by side in the machine direction,
(3) and a seedling storage unit having a main seedling stand (4) is provided, and a grounding float (5) is attached to the lower part of the self-propelled aircraft to construct a walk-behind rice transplanter.

As shown in FIG. 1, FIG. 3 and FIG. 4, the main seedling stand (4) has a front downward tilted posture in which the front end side in the seedling feeding direction is located on the lower side of the body. Each time it is slidably attached to a lateral guide rail (6), etc., and each time the planting claw (3a) of the seedling planting arm (3) passes through the seedling supply port (7) formed in the guide rail (6). , Reciprocating left and right in conjunction with the seedling planting movement of the seedling planting arm (3) so as to cut out the block-shaped seedlings from the mat-shaped seedlings (a) placed on the main seedling stand (4) Every time the left and right lateral movement stroke ends are reached, the seedlings (a), (a) placed on the two rows of seedling placement surfaces (4a), (4a) are slid down by their own weight, and the rotary seedlings are placed. It is configured to vertically feed the seedling supply port (7) for a set length by the forced feeding force of the vertical feed tool (8).

A preliminary seedling stand (9) in a front-down inclined posture is provided above the rear end side of the main seedling stand (4), and a preliminary seedling (b) is provided in the longitudinal feeding direction on the front end side of the main seedling stand (4). The stoppers (10), (11a) for the spare seedlings that prevent movement are placed on the main seedling stand (4).
The stoppers (11b) for the spare seedlings, which restrict the lateral movement of the spare seedlings (b) with respect to the spare seedling stand (9), are laterally transferred together with the main seedling stand (4), respectively. Installed so that spare seedlings (b) can be stored one by one for each seedling placement surface (4a), and the rest of the placement surface (a) of the main seedling placement base (4). When the amount reaches the set value, the preliminary seedling (b) is automatically supplied to the main seedling stand (4).

That is, the preliminary seedling stand (9) is made of seedling scoops,
To attach the seedling stand (4) to the upper side of the rear end side through an attachment tool (12) configured to engage with the handle portion (9a) and to allow engagement with the attachment tool (12). The lower end swings between the lower mounting position in contact with the seedling placement surface (4a) and the lower mounting position in the rising mounting position on the stem and leaves of the placed seedling (a) of the main seedling stand (4). There is.

Then, while the remaining amount of the placed seedlings (a) on the main seedling placing table (4) is larger than the set value, the placed seedlings (a) are set as shown in FIG.
The rear end side portion of the vertical seedling feeding direction is below the spare seedling stand (9), and the free end side of the spare seedling stand (9) rides on the placed seedling (a) due to the weight of the spare seedling. The lower end side of the spare seedling (b) is received by the foliage portion on the upper end side of the placed seedling (a), and by this reception, the edge of the soil on the lower end side of the slope of the spare seedling (b) is the stopper (10 ), And the upper end side of the spare seedling (b) is placed on the spare seedling stand (9).
By receiving the seedlings, the lower end side of the preliminary seedlings (b) is placed on the main seedling stand (4) regardless of the downward movement of the upper seedlings in the vertical direction of the seedlings accompanying the consumption of the placed seedlings (a). Face (4
a) The seedlings (a), the stoppers (10), and the spare seedling stand (9) are used so that the weight of the seedlings does not drop downward and the spare seedlings (b) do not slide in the vertical seedling feeding direction. It will be in a supported state. Also, stoppers (11a) and (11b)
Prevents the spare seedling (b) from sliding down from the spare seedling stand (9) to the side of the machine by contacting the lateral edge of the spare seedling (b). While the remaining amount of the placed seedlings (a) on the placing table (4) is larger than the set value, the preliminary seedlings (9) are stored above the seedling placing surface (4a).

Then, when the remaining amount of the placed seedlings (a) on the main seedling placing table (4) reaches the set value, the rear end side portion of the placed seedlings (a) is a spare seedling (b) as shown in FIG. The free end side of the spare seedling stand (9) is the main seedling stand ( 4) and the lower end side of the preliminary seedling (b) is disengaged from the stoppers (10) and (11a) and also descends onto the seedling placing surface (4a), and the front end of the preliminary seedling (b) is placed. It is possible to connect to the rear end of the seedling (a) and to slide the weight of the spare seedling (b) from the spare seedling stand (9) to the main seedling stand (4) by its own weight. Then, as the consumption of the placed seedlings (a) further progresses and the rear end moves toward the seedling supply port (7), the entire spare seedlings (b) are transferred from the spare seedling stand (9) to the main seedlings. It is designed to transfer to the stand (4).

[Another embodiment]

As a spring mechanism, a tension type or compression type spring for supporting the free end side of the spare seedling stand (9) while allowing the self-weight of the spare seedling (b) to descend is set on the spare seedling stand (9) and the main seedling. You may employ | adopt the structure provided between the stand (4).

In the seedling storage part structure shown in FIG. 5 and FIG. 6, the spare seedling stand (9) is made exclusively for it and attached so that the posture does not change, and the lower end side of the spare seedling (b) is attached. It is formed so as to be directly placed on the placed seedling (a) and received.

It should be noted that reference numerals are added to the claims of the utility model for convenience of comparison with the drawings, but the present invention is not limited to the structure of the accompanying drawings by the entry.

[Brief description of drawings]

The drawings show an embodiment of a seedling storage part structure of a rice transplanter according to the present invention. Figs. 1 and 2 are sectional views of the seedling storage part, Fig. 3 is a perspective view of the seedling storage part, and Fig. 4 is walking. Side view of the whole type rice transplanter,
FIG. 5 and FIG. 6 are cross-sectional views of another implementation storage part. (4) …… Main seedling support, (4a) …… Seedling support, (9)…
… Spare seedling stand, (10) …… Stopper, (a) …… Placed seedling, (b) …… Spare seedling.

Claims (1)

[Scope of utility model registration request] 1. A main seedling stand (4) in a front-lowering inclined posture, which is located lower toward the front end side in the seedling feeding direction, above the rear end side,
The upper end side of the preliminary seedling (b) while receiving the lower surface side of the ground soil of the preliminary seedling (b) in the forward descending inclined posture by the supporting action of the foliage of the placed seedling (a) of the main seedling stand (4) A seedling stand (9) for receiving the seedlings is provided, and the seedling placement (a) described above is also provided.
A stopper (1) that abuts on the edge of the soil on the bottom of the slope of the spare seedling (b) received by the spare seedling (b) and prevents the spare seedling (b) from sliding off the spare seedling stand (9).
0) is fixed to the main seedling stand (4), and the preliminary seedling (b) does not exist on the lower surface side of the subsoil of the preliminary seedling (b) because the preliminary seedling (b) has its own weight. The preliminary seedling stand (9) and the stopper (9) so as to slide off the preliminary seedling stand (9) onto the seedling stand surface (4a) of the main seedling stand (4) while being removed from the stopper (10). 10) The seedling storage structure of the rice transplanter.