JPH0720410B2 - Seedling storage structure of rice transplanter - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a main seedling stand on which a placed seedling is slid to a seedling supply port and supplied to a nail for planting seedlings, and a spare seedling is placed and stored. In addition, the present invention relates to a seedling storage structure of a rice transplanter in which a preliminary seedling stand for sliding down the main seedling stand by its own weight to supply is provided.

[Conventional technology]

In the above rice planting machine, conventionally, two spare seedlings can be stored, and the spare seedling weight that acts on the placed seedlings remaining on the main seedling stand can be supplemented while suppressing the spare seedling weight to one spare seedling. As a result, for example, the actual public Sho 57-295
There was one shown in Japanese Patent No. 41.

That is, the preliminary seedling stand is arranged vertically above the upper end side of the main seedling stand, and the seedling surface of the preliminary seedling stand is raised and swung almost horizontally, and the free end side is the main seedling. The seedlings are in a feeding position in which the seedlings are slid down to abut on the seedling surface of the seedlings or on the seedling surface of the lower seedling seedlings, and the placed spare seedlings are slid onto the main seedling seedling by gravity. It is constructed so as to individually swing around the shaft center on the upper side in the longitudinal feed direction. That is, a plurality of preliminary seedlings are arranged above the main seedling stand so that they can be stored vertically, and the lower seedlings are sequentially supplied to the main seedling stand.

[Problems to be Solved by the Invention]

In the case of the conventional structure, not only the height of the seedling storage structure becomes large because the preliminary seedling stand is lined up and down, but especially 2
When supplementing the second and subsequent reserve seedlings, the reserve seedlings slipped from a position relatively far above the rear end of the seedlings remaining on the main seedling stand, and the residual seedlings on the main seedling stand and the supply reserve seedlings were There was a risk that the seedlings would come into contact with each other shockingly, and depending on the seedling, significant compressive deformation and breakage might occur.

The object of the present invention is to be able to store two spare seedlings and to be compact in both the up-down direction and the front-back direction of the machine body. (EN) Provided is a seedling storage part structure capable of supplying seedlings while suppressing the collision of seedlings or mitigating as much as possible while suppressing the above.

[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 provided with two mat-like seedlings and a seedling putting surface to be placed side by side in the longitudinal feed direction, and one spare seedling is provided. The two preliminary seedling stands which are formed so as to be placed one by one, the front end positions of the respective preliminary seedling stands that are on the lower side in the vertical seedling feeding direction are on the lower side in the vertical seedling feeding direction of the mat-shaped seedlings. With respect to the seedling longitudinal feed direction on the upper side of the seedlings in the state of being vertically displaced and arranged above the main seedling stand, the front end side of the preliminary seedling stand stands up from the seedling surface. Ascending seedling storage posture in which the whole is almost along the seedling stand, and a descending inclined seedling supply posture in which the front end side descends to the seedling stand surface and slides the mounted preliminary seedling to the main seedling stand by its own weight,
A preliminary seedling stand supporting member for supporting the preliminary seedling stand in a state of individually swinging around a fulcrum on the upper side in the vertical seedling feeding direction of the respective preliminary seedling stand is provided, and on the main seedling stand Of the mat-like seedlings in a state of contacting the front end of the preliminary seedling stand to maintain the preliminary seedling stand in the elevated seedling storage posture and disengaged from the mat-like seedling floor soil upper surface At the posture switching member for automatically switching the preliminary seedling stand from the rising seedling storage position to the descending inclined seedling supply position by releasing the reception of the front end of the preliminary seedling stand in
The main seedling stand is provided swingably around the horizontal axis at the front end portion of each of the preliminary seedling stand.
The action and effect are as follows.

[Action]

Put one spare seedling on each of the two seedling stand, and put a total of two spare seedlings above the main seedling stand. The front end position of each spare seedling stand is the mat of each main seedling stand. The seedlings are stored in a state that they are aligned in the vertical seedling feeding direction so as to be displaced upward from the front end position of the seedlings in the vertical seedling feeding direction and substantially along the main seedling stand.

Start the operation with two seedlings placed on the main seedling stand, and the rear end of the remaining seedlings on the main seedling stand in the vertical feed direction is the front end of the preliminary seedling stand placed above the seedling vertical feed direction. When passing below, the posture switching member provided at the front end of the preliminary seedling stand automatically switches from the state in which it contacts the top surface of the bed soil of the mat-shaped seedling to the state in which it is off the top surface of the floor soil, and the seedling is fed vertically. In addition to releasing the reception of the front end of the preliminary seedling stand on the right side, the standby seedling stand is automatically switched from the ascending seedling storage posture to the descending inclined seedling feeding posture in accordance with the cancellation of the reception, and the seedling vertical feeding direction. One piece of spare seedlings stored in the well-prepared stand for seedlings slides down by its own weight so that its front end immediately contacts the last end of the remaining seedlings. Then, with the subsequent downward movement of the residual seedlings due to the vertical feeding of the seedlings, the preliminary seedlings on the upper side in the vertical feeding direction of the seedlings slide on the main seedling stand by following the residual seedlings due to their own weight sliding.

When the seedling consumption further progresses and the rear end of the preliminary seedling from the upper side preliminary seedling stand passes below the front end of the preliminary seedling stand placed on the lower side in the vertical seed feeding direction, the front end portion of the preliminary seedling stand From the state in which the posture switching member provided in is in contact with the top surface of the ground soil of the mat-shaped seedling (preliminary seedling from the upper side preliminary seedling stand)
It automatically switches to a state where it is off the top surface of the floor soil and releases the reception of the front end of the preliminary seedling stand on the lower side in the vertical seedling feeding direction, and the stand of the preliminary seedling rises as the receiving is released. The seedlings are automatically switched to the descending slope seedling feeding posture, and one spare seedling that was stored in the auxiliary seedling stand on the lower side in the vertical feed direction has the front end of the remaining seedlings (reserve from the upper side seedling stand). The weight of the seedling will immediately slide down so that it will come into contact with the last end. Then, with the subsequent downward movement of the residual seedlings (spare seedlings from the upper spare seedling stand), the lower spare seedlings in the vertical feed direction slid down by their own weight, resulting in residual seedlings (upper seedling stand stand). (Preliminary seedlings from) and transfer to the main seedling stand.

〔The invention's effect〕

Place two spare seedling stand side by side in the vertical seedling feed direction,
By allowing the reserve seedlings to be stored, the number of work interruptions required for seedling replenishment is reduced and the work efficiency is improved, but two spare seedling stands are arranged side by side in the vertical direction. Compared with the case, it is possible to make the machine body compact in the vertical direction, and thereby improve the stability when the machine body is running.

Also, when the rear end of the remaining seedlings of the main seedling stand in the longitudinal feed direction passes under the front end of each preliminary seedling stand, the position of the remaining seedlings is removed by the action of the posture switching member and the position is above the main seedling stand. Since the reserve seedlings stored in the stand for supporting the reserve seedlings can be automatically slid down by weight, it is possible to automatically supply the reserve seedlings without any manual judgment or operation.

Moreover, the action of the posture switching member automatically slides the preliminary seedling into a state where its front end immediately contacts the rear end of the residual seedling, so that it is possible to maintain continuity, so it acts on the residual seedling on the main seedling stand. Not only can the weight of spare seedlings be reduced to one sheet, but the impact of the collision between the residual seedlings and the spare seedlings when the weight of the spare seedlings slides can be alleviated as much as possible, resulting in defective planting due to deformation or damage of the seedlings. It can be made difficult.

In addition, the weight drop of the spare seedlings is placed on the spare seedling stand on the upper side in the vertical feed direction of the seedling, which is arranged at a relatively higher position than the stand on the lower side of the vertical seedling feed direction. Since the steps are performed in order, the stability can be further improved when the aircraft is running.

〔Example〕

 Next, examples will be shown.

As shown in FIG. 7, on 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.

The seedling storage section is configured as follows.

That is, as shown in FIG. 1, left and right seedling placement surfaces (4a) and (4a) for supplying seedlings separately to both seedling planting arms (3) and (3) of the main seedling placement base (4). Two mat-like seedlings (a) are formed so as to be placed side by side in the vertical direction. The main seedling stand (4) is slidably attached to the guide rail (6) in the lateral direction of the machine that also serves as a seedling stopper in such a tilted position that the lower end side is positioned toward the front of the machine, and the seedling planting arm (3 ) Each time the planting claw (3a) passes through the seedling supply port (7) formed on the guide rail (6), the mat-like seedling (a) placed on the main seedling placing table (4) to the block-like seedling It is configured to be reciprocally moved to the left and right in association with the seedling planting movement of the seedling planting arm (3) so as to be cut and taken out, and the seedling surface of both seedlings is reached each time the left and right lateral movement stroke ends are reached. Placed seedlings (a), (a) of (4a), (4a)
Is configured to be vertically fed to the seedling supply port (7) for a set length by its own weight sliding and the forced transfer force of the rotary type vertical seedling feeder (8).

As shown in FIG. 1 and FIG. 5, four spare seedling placing stands (9), (9), (10), (10) are formed so that the spare seedlings (b) or (c) are placed one by one. 2) above the left and right seedling placing surfaces (4a) and (4a), and the front end positions of the respective preliminary seedling placing bases (9) and (10) on the lower side in the seedling longitudinal feeding direction are mat-shaped. The seedlings (a) and (a) are located above the main seedling stand (4) with the front end position on the lower side in the vertical seedling feeding direction being displaced upward from the upper side in the vertical seedling feeding direction. It is configured so that four seedlings can be stored for every two seedling surfaces (4a). Then, two preliminary seedlings (b) and (c) for the left and right seedling placement surfaces (4a) and (4a) are automatically supplied to the main seedling placement base (4) based on the following structure. is there.

That is, the two preliminary seedling stand bases (9) and (10) are arranged in the vertical seedling feed direction to form a pair of preliminary seedling stand support members (11),
(12) and attach to the main seedling stand (4) separately.
The support members (11) and (12) use the through hole of the handle portion (9a) or (10a) of the seedling scoop plate which is also used as the preliminary seedling stand (9) or (10) for the engaging hole. The auxiliary seedling stand (9) or (10) is configured to receive and lock, and the auxiliary seedling stand (9) or (10) is on the upper side in the vertical seedling feeding direction for the purpose of engaging and accommodating. Is allowed to swing up and down around the fulcrum. That is, as shown in FIG. 1, the two preliminary seedling stands (9) and (10) are individually floated from the seedling placing surface (4a) on the front end side, and the whole is almost along the seedling placing table (4). The seedling supply port (7) by the plate stopper (13) or (14) so as not to drop the preliminary seedling (b) or (c) into the state, and the bar stopper (15) or ( 16), it becomes a rising seedling storage posture in which it is placed and stored while being prevented from falling off laterally, or as shown in FIGS. 2 and 3, the spare seedling (b) or (c) is a rod guide (17). ) Or (1
By 8), while supporting the seedling supply port (7) so that it will not fall off, the front end side descends onto the seedling placing surface (4a), and the placed preliminary seedling (b) or (c) is placed on the main seedling. It is possible to have a descending inclined seedling supply posture in which the table (4) slides down by its own weight.

As shown in FIG. 4 and FIG. 6, a pair of stoppers (19) and (20) for individually supporting the raised seedling storage stands (9) and (10) in the elevated seedling storage postures are provided with support tools (21). ) Or (2
It is attached to the main seedling stand (4) via 2) and the attachment plate (23) or (24). The support tool (21) or (22) is configured to swing around the horizontal axis (P) with respect to the mounting plate (23) or (24), and the main seedling stand (4) is mounted. A sensor (25) or (2) that detects the remaining amount of the placed seedlings (a) by contacting the upper surface of the floor soil of the placed seedlings (a).
6) is attached to the support (21) or (22) so that it can swing integrally, and the stopper (19) or (20) is in the working position while the remaining amount of seedlings on the main seedling stand (4) is greater than the set value. Maintained at
When the remaining seedling reaches the set value, the stopper (19) or (2
0) is automatically switched to the release position. That is, the stopper (19) or (20),
While the remaining amount of seedlings on the main seedling stand (4) is larger than the set value by the support tool (21) or (22) and the sensor (25) or (26) [sensor (25) or (26) respectively While the mat-like seedling (a) is in contact with the top surface of the bed soil], the preliminary seedling stand (9) or (10) is maintained in the elevated seedling storage posture, and the remaining seedling amount reaches the set value [sensor (25 ) Or (26) comes off the top surface of the soil and comes into contact with the seedling placing surface (4a)] and the posture for switching the preliminary seedling placing base (9) or (10) from the ascending seedling storage posture to the descending inclined seedling feeding posture. As long as the switching member (A1) or (A2) is configured and the remaining amount of seedlings is larger than the set value, the rearmost end of the placed seedlings (a) is set to the set position as shown by the phantom line in FIG. The sensor (2
5) Since the placement seedling (a) is present below () or (26), the sensor (25) or (26) is on the floor soil of the placement seedling (a) and is supported by the floor soil. Stopper (1
9) or (20) is maintained in the working posture, and the preliminary seedling stand (9) or (10) is maintained in the elevated seedling storage posture. When the remaining amount of seedlings reaches the set value, the rear end of the placed seedlings (a) reaches the set position and is placed below the sensor (25) or (26) as shown by the solid line in FIG. Sensor (25) or (26) due to the absence of seedling (a)
Due to its own weight and the weight of the spare seedlings (b) or (c) etc., it is lowered onto the seedling placing surface (4a) and the stopper (19) or (20) is placed on the spare seedling placing table (9) or (10). The auxiliary seedling stand (9) or (10) is swung to the release position, which is separated from the bottom to the outside, to switch the reserve seedling placing stand (9) or (10) from the rising seedling storage posture to the descending inclined seedling supply posture.

In short, as shown in FIG. 1, two mat-like seedlings (a) and (a) are placed on each of the left and right seedling placement surfaces (4a) of the main seedling placement table (4) and the preliminary seedling placement is performed. Table (9)
Place the spare seedling (b) or (c) on (10) and start the work. Then, when the rear end of the remaining seedlings of the main seedling stand (4) in the vertical feed direction passes below the front end of the preliminary seedling stand (9) arranged on the upper side of the vertical seedling feed direction, this passage is detected by the sensor. It is automatically detected by (25), and because of the automatic switching of the stopper (19) by the sensor (25), the preliminary seedling placing table (9) is automatically switched to the descending inclined seedling feeding posture,
The spare seedlings (b) stored in this spare seedling stand (9) slide down by its own weight while pushing up the sensor (25), and the front end immediately comes into contact with the rear end of the residual seedlings (a). With the downward movement of the residual seedling (a) due to the vertical feed, the preliminary seedling (b) follows the residual seedling (a) and is transferred to the main seedling placing table (4) due to its own weight sliding. Then, as the seedling consumption further progresses, the rear end of the spare seedling (b) supplied from the spare seedling stand (9) passes below the front end of the spare seedling stand (10) arranged on the lower side in the vertical seedling feeding direction. Then, this passage is detected by the sensor (2
6) and the stopper (2
Automatic seedling stand (1) for automatic switching of (0)
0) is switched to the descending inclined seedling supply posture, and the spare seedling (c) stored in this spare seedling stand (10) slides down by its own weight while pushing up the sensor (26) and the front end is replenished first. Immediately contacting the rear end of the seedling (b), the auxiliary seedling (c) follows the auxiliary seedling (b) due to its own weight slippage due to the downward movement of the auxiliary seedling (b) due to the subsequent vertical feeding of the seedling. It is transferred to the main seedling stand (4).

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

[Brief description of drawings]

1 to 3 are partially cutaway side views of the seedling storage part, FIG. 4 is a side view of the sensor placement part, FIG. 5 is a perspective view of the seedling storage part, and FIG. 6 is a stopper and a sensor. A plan view and FIG. 7 are side views of the entire walk-behind rice transplanter. (4) …… Main seedling placement table, (4a) …… Seedling placement surface, (9),
(10) …… Spare seedling stand, (11), (12) …… Spare seedling support member, (A1), (A2) …… Attitude switching member,
(P) ... Horizontal axis, (a) ... Matt seedling, (b),
(C) …… Preliminary seedling.

Claims (1)

[Claims] 1. A mat-shaped seedling (a) is attached to a main seedling stand (4).
Two preliminary seedling placing stands (9), (10), each of which is provided with a seedling placing surface (4a) to be placed side by side in the vertical feeding direction of the seedlings and is formed so that one auxiliary seedling (b or c) is placed each. , The seedlings (9) and (10) of the respective mating seedlings (a) have their front end positions on the lower side in the vertical feed direction of the respective seedlings compared to the front end positions of the mat-shaped seedlings (a) on the lower side in the vertical feed direction. The seedlings are arranged above the main seedling stand (4) side by side in the vertical feed direction in a state of being displaced to the upper side in the vertical feed direction, and the front end sides of the preliminary seedling stand (9), (10) are the seedlings. Ascending seedling storage posture that floats up from the placing surface (4a) and is substantially along the seedling placing base (4), and the front end side is lowered to the seedling placing surface (4a) and placed as a preliminary seedling (b or c) In the descending inclined seedling feeding posture in which the seedlings are slid down to the main seedling placing table (4) by their own weight, Wherein the state swung separately in a fulcrum around the longitudinal feed direction upstream side preliminary seedling stage (9),
Preliminary seedling stand support members (11), (12) for supporting (10)
And the preliminary seedling stand (9) in a state of being in contact with the upper surface of the bed soil of the mat-like seedling (a) on the main seedling stand (4).
Alternatively, the preliminary seedling stand (9 or 10) is received in the elevated seedling storage posture by receiving the front end of (10), and the preliminary seedling stand (9 or 10) is removed from the floor soil upper surface of the mat-like seedling (a) ( 9 or 10) A posture switching member (A1) for releasing the reception of the front end and automatically switching the preliminary seedling stand (9 or 10) from the rising seedling storage posture to the descending inclined seedling supply posture.
Or A2) is provided in the main seedling stand (4) at a position below the front end of each of the preliminary seedling stand (9), (10) so as to be swingable around the horizontal axis (P). Seedling storage structure.