JP2522975Y2 - Rice transplanter seedling placement device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a seedling mounting device of a rice transplanter, which is formed by dividing right and left outermost portions of a seedling mounting table and foldably provided at a center side of the seedling mounting table.

`` Conventional technology '' Conventionally, as shown in Japanese Utility Model Publication No. 58-14837, a planting section is provided on the rear side of the traveling vehicle, and a seedling mounting table which is inclined to the front high and low is provided in the planting section. There is a technique in which a planting claw for planting a seedling and a float for leveling the planting rice field are attached to the lower end side of the seedling table.

"Problem to be Solved by the Invention" In the prior art, the rail provided at the lower end portion of the seedling mounting table is provided so as to be freely foldable. However, since the rail is bent in a direction substantially perpendicular to the seedling mounting table, it is bent. The outer end of the rail machine at the time is easily located low, and the rail approaches the planting claw by bending the rail to the upper side of the seedling table, while the rail floats by bending the rail to the lower side of the seedling table. And the rails are damaged by interference.

[Means for Solving the Problems] However, the present invention relates to a seedling mounting device of a rice transplanter that forms a seedling mounting by connecting a divided seedling mounting body to a seedling mounting main body in a freely foldable manner. A support member is provided that folds while moving the divided seedlings in parallel to the inclined upper end side after moving the split seedlings in parallel.
The divided seedling mounting body is connected to the seedling mounting base via the support member.

[Operation] Therefore, since the divided seedling mounted to be attached via the support member is folded while being moved to the inclined upper end side after the parallel movement, the lower part of the divided seedling mounted can be separated from the float or the like and stored. It is possible to easily prevent the components at the inclined lower end of the base body and the divided seedlings at the storage position from interfering and being damaged.

"Example" Hereinafter, an example of the present invention will be described in detail with reference to the drawings. FIG. 1 is a front view of a seedling mounting table, FIG. 2 is a side view of a riding rice transplanter, FIG. 3 is a plan view of the same, and (1) in FIG. The rear end of the vehicle body frame (3) on which the (2) is mounted is connected to the transmission case (4), and the front wheels (6) for paddy field traveling are provided on both sides of the front of the transmission case (4) via the axle case (5). And a transmission case (7) is continuously provided on both sides of a rear portion of the transmission case (4), and a rear paddle (8) for paddy field traveling is supported at a rear end of the transmission case (7). A spare seedling mount (10) is attached to both sides of the hood (9) covering the engine (2) and the like, and the transmission case (7) and the like are covered with a body cover (12) forming a step (11). A driver's seat (13) is mounted above the vehicle body cover (12), and a steering handle (14) is provided in front of the driver's seat (13) and at the rear of the hood (9).

In the figure, reference numeral (15) denotes a planting section provided with a seedling mounting table (16) for eight-row planting and a plurality of planting claws (17). Seedling stand (16) is received via the lower rail (18) and guide rail (19).
0) and a rotary case (21), which is slidably reciprocally slidable to the left and right, and is rotated at a constant speed in one direction, is supported by the planting case (20), and is symmetrical about the rotation axis of the case (21). Claw case (22) (2
2) Arrange and place the nail (17) at the tip of the nail case (22).
Install. A fulcrum plate (24) is provided on the front side of the planting case (20) via a rolling fulcrum shaft (23),
A fulcrum plate (24) is connected to the rear side of the traveling vehicle (1) via a three-point link mechanism (27) including a top link (25) and a lower link (26), and is planted via the link mechanism (27). Equipped with a lifting cylinder (28) for raising and lowering the attachment part (15),
At the same time as the front and rear wheels (6) and (8) are driven to move and move at a substantially constant speed, a seedling for one plant is taken out from a seedling mounting table (16) that reciprocates right and left by a planting claw (17). It is configured to perform seedling planting work continuously.

In the figure, (29) is a traveling speed change lever, (30) is a planting elevating lever, (31) is a planting sensitivity adjusting lever, (32) is a traveling clutch pedal, (33) and (33) are left and right brake pedals, 34) is a float for Tahei Hitoshi.

As shown also in FIGS. 4 and 5, the seedling mounting table (16) divides the leftmost outermost one row of seedling mounting sections to form left and right split seedling mounting bodies (16a). Fold the link mechanism (3a) forward and downward on the left and right sides of the center seedling platform body (16b).
5) is provided so that it can be folded approximately 90 degrees.

The link mechanism (35) is a left-right oscillating first arm that is supported at upper and lower two positions via left-right oscillating first fulcrum shafts (36) on the back side of the left and right outermost ridges of the seedling mounting base body (16b). (37) and
A second back-and-forth swing arm (39) connected to and supported by the first arm (37) via a second back-and-forth swing shaft (38) in a direction perpendicular to the first fulcrum shaft (36); One end is connected to the arm (39) via a left-right swinging third fulcrum shaft (40) parallel to the first fulcrum shaft (36), and the other end is divided into the left and right divided seedling mounting bodies (16a).
Support arm (4
2) and a left and right first arm (37) via a drive transmission mechanism (44) to a folding drive motor (43), which is a single actuator fixed on the back side of the seedling mounting base (16b). Are linked and linked.

The transmission mechanism (44) includes a forward / reverse screw connection portion (46a) (46b) fixed at the center to the forward / reverse screw portion (45a) (45b) of the drive shaft (45) connected to the drive motor (43). One end is slidably inserted into the left and right sliding bodies (47a) and (47b) to be coupled and the sliders (48) fixed to the upper and lower ends of the sliding bodies (47a) and (47b), and the other end is Two first arms on both sides (37)
A sliding rod (52) connected to the fixing piece (49) of the above through a shaft (50) and a long hole (51), respectively, and a slider (48) of the sliding body (47a) (47b). The compression spring (53), which is an elastic body for maintaining the working posture, interposed between the shaft mounting portions (52a) of the sliding rod (52), and the sliding rod (48) insertion end of the sliding rod (52). When the left and right sliding members (47a) and (47b) are moved inward, the rod (52) is pulled to move the seedling mounting body (16a) in a folding operation, and the seedling mounting base body (16
b) and a spring (55) that is stretched between the support arm (42) and reduces the impact force when the seedling mounting body (16a) is folded,
During normal planting operation, the spring force of the compression spring (53) is used to press the seedling mounting body (16a) against the left and right sides of the seedling mounting base body (16b) to maintain the working posture while maintaining the motor (43). When the first arm (37) is rotated by approximately 90 ° horizontally and outwardly from the lower vertical state by the driving of (1), the left and right divided seedling mounts (16a) are folded.

By the way, as shown in FIG. 8, the total stroke (L) of the operation of the motor (43) is set to be larger than the actual stroke (l) required for folding, and the range of the full stroke (L) of the motor (43) is set. The spring force of the spring (53) is used as a set pressure to keep the seedling mounting body (16a) in the working posture. Even if there is play in the link mechanism (35), it is always set regardless of this. Nursery stand base by pressure (16b)
The configuration is such that the posture is maintained such that the seedling mounting body (16a) is pressed against the side. As is apparent from the above, in the seedling mounting device of the rice transplanter that forms the seedling mounting table (16) by connecting the divided seedling mounting body (16a) to the seedling mounting base body (16b) so as to be freely foldable, 16b) Split seedlings (16
The first arm (37), the second arm (39), and the support arm (42), which are support members that are folded while moving the a) in parallel to the inclined upper end side, are provided.
The divided seedlings (16a) are connected to b) via the first and second arms (37) and (39) and the support arm (42).

In addition, (56) is a guide body for slidingly guiding the left and right sliding bodies (47a) and (47b).

With the present embodiment configured as described above, the folding operation of the left and right divided seedling mounts (16a) will be described below.

Now the motor (43) from the solid line working position in FIGS. 1 and 5
To move the left and right sliding bodies (47a) and (47b) inward, pull the rod (52) after the slider (48) comes into contact with the link fitting (54). When the rod (52) is moved, the first arm (37) is turned about 90 degrees outward about the first fulcrum shaft (36) as shown in FIG. Then, the seedling carrier (16a) is pulled away from the central seedling carrier main body (16b) outward and pulled up. And the first arm (37) is approximately 90
When the upper and lower second fulcrum shafts (38) overlap each other on one straight line (R) by rotating the seedling mounting body (16) around the shaft (38).
a) is bent by about 90 degrees against the spring (55) by its own weight, and pivots downwardly, against the outer sides of the left and right ends of the seedling table main body (16b) as shown in FIG. 4 and FIG. It is stored in a bent state. In this way, the two operations of raising the left and right seedling mounting bodies (16a) once on the left and right sides of the seedling mounting base body (16a) and then folding them downward can be performed by one motor (43). It is practical and economical.

On the other hand, the holding force when the left and right seedling mounting bodies (16a) are held in the working posture on both the left and right sides of the seedling mounting base body (16b) is given by the spring force of the spring (53).
Even if there is play in dimensions such as backlash in each link part of the link mechanism (35), the seedling carrier (16a) is always pressed against the main body (16b) with a substantially constant spring pressure, and a predetermined working posture Can be stably maintained. In this case, the motor (43) stops driving at the set position up to the stroke end on the working posture side and sets the seedling mounting body (16a) in the working posture, so that the motor (43) is set only by the stroke of the motor (43). As compared with the means for performing the above, the variation of the stroke of the motor (43) can be tolerated, and it is not necessary to set the stroke with high accuracy.
a) When the setting operation is performed, foreign matter or the like is caught between the seedling mounting body (16a) and the main body (16b) so that the seedling mounting body (16a) becomes immovable with a gap between the main body (16b) and the like. Even if there is, the subsequent stroke of the motor (43) is
Accidents such as damage to the motor (43) can be prevented by making it absorbed in 3).

[Effects of the Invention] As is clear from the above embodiments, the present invention relates to a rice transplanter that forms a seedling mounting table (16) by connecting a divided seedling mounting body (16a) to a seedling mounting base (16b) so as to be freely foldable. In the seedling mounting device, the support member (3) is configured to translate the divided seedling mounting body (16a) to the side of the seedling mounting base body (16b) and then fold while moving the inclined seedling mounting body (16a) to the upper end side.
7) (39) and (42) are provided, and the divided seedling mounting body (16a) is connected to the seedling mounting base body (16b) via the supporting members (37), (39) and (42). 37) Since the split seedlings (16a) attached via (39) and (42) are translated and then moved to the inclined upper end side and then folded, the tilted lower end of the split seedlings (16a) can be floated (34) or the like. Can be stored away
The component at the inclined lower end of the seedling mounting base (16b) and the divided seedling mounting body (16a) at the storage position can be easily prevented from being damaged by interference.

[Brief description of the drawings]

1 is an explanatory front view of a seedling mounting table, FIG. 2 is an overall side view of a rice transplanter, FIG. 3 is a plan view of the same, FIG. 4 is a side explanatory view of a planting section, and FIG. 6 and FIG. 7 are explanatory diagrams of the operation, and FIG. 8 is an explanatory diagram showing the relationship between the motor and the spring pressure. (16a) ... divided seedling carrier (16b) ... seedling platform main body (43) ... motor (actuator) (53) ... spring (elastic body) (L) ... stroke

Claims (1)

(57) [Scope of request for utility model registration] 1. A seedling mounting device for a rice transplanter, wherein a divided seedling mounting body (16a) is foldably connected to a seedling mounting base body (16b) to form a seedling mounting base (16). Support members (37), (39), and (42) are provided on the side of the seedling table body (16b), which are laterally moved and then folded toward the upper end side after being moved in parallel. (37) A seedling mounting device for a rice transplanter, wherein the divided seedling mountings (16a) are connected via (39) and (42).