JPH0620348Y2 - Rice transplanter planting device - Google Patents

Description

[Detailed description of the device] "Industrial application field" The present invention relates to a rice transplanter in which a single seedling of a plant is taken out from a seedling table with a planting claw and sequentially planted in a field. The present invention relates to a rotary-type planting device in which a rotary center shaft for driving a rotary case having attached claws is supported and a rotary movement of the rotary case is used to perform seedling planting work by each planting claw.

"Prior Art" As a rotary type planting device of this type, for example, Japanese Patent Publication No.
-17806, etc., and usually, the rotary case is installed only on each of the left and right sides of the planted case.

"Problems to be solved by the invention" Therefore, when installing a large number of rotary cases, the number of planting cases was also required to correspond to it. In this case, the transmission system of the driving force becomes longer for the outer planting case with respect to the drive input part at the center of the planting part, and the number of parts, weight and strength must be increased accordingly, and the structure is complicated and large. There was a drawback that made it hungry.

SUMMARY OF THE INVENTION Therefore, according to the present invention, a plurality of rotary cases are supported in a skewered manner on a drive rotation center shaft extending to the left and right outside of a planting case, and the rotary case In a structure in which a plurality of planting claws attached to each of these cases during rotation are moved in a closed loop elliptical locus to perform seedling planting work, a planting drive case fixed to the front end side of the planting case, and a left and right The planting case includes left and right side frames disposed outside the outermost rotary case, and the planting case is disposed substantially in the center of the planting portion in plan view and is input to the drive case. The power from the machine side is transmitted to the rotation center shaft, and the planting case and the left and right side frames are provided substantially parallel to the front and back of the rice field at a position below the seedling take-out plate in a side view.

[Operation] Therefore, according to the present invention, even when a large number of rotary cases are installed, a single planting case can be installed without the need for a plurality of planting cases as in the conventional case. Can be provided at a position which passes under the seedling mounting table and is closest to the drive input section at the center of the planting section, and the transmission path of the drive force to the rotation center axis can be set to the shortest distance. Even in such a multiple structure, the parts and weight are greatly reduced, the structure is made compact, and the economy is extremely excellent.

[Embodiment] An embodiment of the present invention will be described below in detail with reference to the drawings. Fig. 1 is a side view of the rotary case, Fig. 2 is a side view of the rice transplanter for riding, and Fig. 3 is a plan view of the same. In Fig. 1, (1) is a traveling vehicle on which an operator rides. The rear end of the vehicle body frame (3) carrying (2) is connected to the mission case (4), and the paddy field wheels (6) are attached to both sides of the front part of the mission case (4) via the front axle case (5). ) Is supported, and the axle case is attached to both sides of the rear part of the mission case (4).
(7) are connected in series, and the rear wheel (8) for traveling paddy fields is supported at the rear end of the transmission case (7). And while attaching a spare seedling mounting table (10) on both sides of the bonnet (9) that covers the engine (2), cover the transmission case (7) and the like with a vehicle body cover (12) that forms a step (11), A driver's seat (13) is attached to the upper portion of the vehicle body cover (12), and a steering handle (14) is provided in front of the driver's seat (13) at the rear of the hood (9).

Further, in the figure, (15) is a planting part having multiple row planting bases (16) and a plurality of planting claws (17) ... Guide rail (18) and guide rail (1
The rotary case (2) is supported by the planting case (20) via the 9) so that it can slide back and forth in the left and right directions and rotates at a constant speed in one direction.
1) is supported on the planted case (20) in multiples, and the case (2
The claw cases (22) and (22) are arranged symmetrically with respect to the rotation axis of (0), and the planting claw (17) is attached to the tip of the claw case (22). A support frame (24) is provided on the front side of the planting case (20) via a planting rotation fulcrum shaft (23), and a three-point link mechanism (27) including a top link (25) and a lower link (26) is provided. ), A supporting frame (24) is connected to the rear side of the traveling vehicle (1), and a raising and lowering cylinder that raises and lowers the planting part (15) via the link mechanism (27).
(28), which drives the front and rear wheels (6) and (8) to move at a substantially constant speed, and at the same time, slides the seedlings for one plant from the seedling stand (16) that slides back and forth from side to side. It is taken out according to (17), and the seedlings are continuously planted.

Further, in the figure, (29) is a traveling shift lever, (30) is a planting lift lever, (31) is a planting sensitivity adjustment lever, (32) is a traveling clutch pedal, (33) and (33) are left and right brake pedals, and Denoted at 34) are flattening floats for supporting the flat surface, and support the floats 34 below the planting case 20 via a support link 35 or the like.

Furthermore, as shown in FIG. 4, the seedling pick-up plate (3
To the seedling take-out port (37) of 6), the two planting claws (17) and (17) provided in the rotary case (21) are alternately moved via the claw cases (22) and (22), and the rotary case is rotated. Two rotations of the case (21) are used to plant two seedlings with two planting claws (17) (17).

As shown in FIG. 5, at the rear end of the planting case (20), a planting claw drive shaft (38), which is the central axis of rotation of the rotary case (21), is rotatably supported, and this drive shaft ( The left and right side frames (20) are integrally connected to the planted drive case (20a).
It is rotatably supported by b). The planting case (20) has its front end connected to the left end side of the planting drive case (20a), and has two rows on the drive shaft (38) between the planting case (20) and the left side frame (20b). Rotary case (21), planted case (20)
On the drive shaft (38) between the right side frame (20b) and the right side frame (20b), four cases of rotary cases (21) are fixedly supported in a skewered manner via set bolts (21a).

Then, the sun gear (39) is loosely fitted to the planting pawl drive shaft (38) in the rotary case (21), and the sun gear (39) is attached to the rear ends of the left and right side frames (20b) via the phase adjusting lever (40). A fixed frame (20c) between which the position is adjustable so that the phase can be adjusted, and an idle gear (41) having the same number of teeth as the sun gear (39).
And a planetary gear (42), the idle gear (41) via the intermediate shaft (43), and the planetary gear (4) via the claw case shaft (45) fixed to the claw case (22) with bolts (44).
2) is rotatably supported in the rotary case (21). Sixth
As shown in the figure, the gears (39) (41) (42) are connected to the shafts (38) (43) (4
5) With a certain size eccentricity and axial support, two planetary gears (42) and (42) are constantly meshed in a line with the central sun gear (39) via the idle gears (41) and (41). , The sun gear (39) is fixedly supported on the fixed frame (20c), the rotary case (21) is rotated at a constant speed through the planting claw drive shaft (38), and the planting claws (21) at both ends of the rotary case (21) are 17) and 17) are provided so as to be alternately moved down to the seedling take-out port (37) at the lower end of the slanting table (16). Then, in conjunction with the rotation of the rotary case (21), the claw case shaft (45) is rotated at a non-constant speed through the gears (39) (41) (42), and the claw case shaft (45) is planted. nail
The rotation of the nail case shaft (45) is slower than the rotation of the rotary case (21) between the seedling picking position of (17) and the seedling planting position, and the seedling is picked up from the rotary case (21) seedling planting position. Rotate the claw case shaft (45) faster than the rotation of the rotary case (21) until reaching the position, and the movement locus (l) by the planting claw (17) is a vertically long closed loop outside the drive shaft (38). It is configured to draw an oval. That is, when the nail case shaft (45) reaches the seedling take-out position, it freely rotates with respect to the rotation of the rotary case (21) and makes the planting claw (17) posture upward, while the nail case shaft
When the (45) reaches the seedling planting position, the rotary case (21) rotates without delay and the posture of the planting claw (17) is downward.

Further, the claw case shaft (45) allows the cam shaft (46) to freely freely pass therethrough, and one end of the cam shaft (46) is provided with a position adjusting plate (47).
It is fixedly supported by the rotary case (21) via bolts and bolts in a rotationally adjustable manner, and the other end of the cam shaft (46) is connected to the forced-planting push-out claw (7a) in the claw case (22). The push rod (48) is connected via the push arm (50) and the pushing cam (51), and when the planting claw (17) plunges into the rice field, the push rod (49) is advanced and the planting claw (49) The seedlings sandwiched in 17) are configured to be extruded into the soil by the extrusion claws (17a).

Reference numeral (52) is a safety clutch provided on the drive shaft (38), which is provided with a chain (53) and a sprocket (5) in the planting case (20).
4) The drive force transmitted from the output shaft (56) of the planted drive case (20a) to the drive shaft (38) via (55) is cut off in the case of overload.

By the way, as shown in FIG. 1 and FIG. 4, the planting case (20) is provided in a position below the seedling take-off plate (36) in a side view and substantially parallel to the paddy field in the front-back direction, and in a plan view. Planting department
(15) is provided substantially at the center, and a transmission path for transmitting the planting drive force from the planting drive case (20a) to the drive shaft (38) is formed in the minimum path by utilizing the surplus space to It is configured to be compact.

This embodiment is configured as described above, and the planting pawl drive shaft (38)
With this as the center, a rotary case (21)
By rotating the gears continuously in one direction at a constant speed.
(39) (41) (42) via the claw case shaft (45) rotates at a non-constant speed,
Move the planting claws (17) to the seedling cutting position before the seedling take-out port (37), and the planting claws (17) to the planting position when they are rushing into the rice field, and turn the rotary case (21) half a turn. One plant is planted.

Thus, in the case of this configuration, as shown in FIGS. 1 and 6, the movement locus (l) of each planting claw (17) supported by the rotary case (21) is the rotation of the rotary case (21). The rotary case (21) is drawn in a closed loop outside the center of the drive shaft (38) (that is, the center of rotation of the rotary case (21) is located inside the movement locus (l)). The rotation of the planting claw (17) and the claw case (22) avoids interference with the drive shaft (38) and rotates without any problem, and therefore a single drive by the single planting case (20) is performed. In this way, it is possible to support multiple rotary cases (21) in multiple rows on the shaft (38) in this way, so it is possible to reduce the number of parts such as other planted cases and drive shafts compared to the conventional structure. Can be made compact. Also, the transmission path of the planting drive force from the planting drive case (20a) to the drive shaft (38) does not detour outside the rotary case (21) above the seedling mounting table (16) or on the outermost left and right sides. Since it uses the minimum path, the drive system can be simplified and can be compactly installed in the planting part (15).
(16) It does not overhang the surroundings to cause obstacles when splicing seedlings or when traveling.

In the above-mentioned embodiment, the fixed frame (20c) is fixed between the rear ends of the left and right side frames (20b), but the fixed frame (20c) is fixed to the member (20d) as shown by the phantom line in FIG. The fixed frame (20c) may be connected to and supported by the rear end of the planting case (20), or the fixed frame (20c) may be supported by the side frame (20b) or the member (20d) in a positionally adjustable manner. ) To operate each rotary case
The phase of the sun gear (39) of (21) may be adjusted at the same time.

"Effects of the invention" As is apparent from the above embodiments, the present invention is a planting case.
(20) to the drive rotation center shaft (38) extending to the left and right outside,
A plurality of rotary cases (21) are supported in a skewered manner in multiple rows, and each of these cases is rotated when the rotary case (21) rotates.
In a structure in which a plurality of planting claws (17) attached to (21) are moved in a closed loop elliptical locus to perform seedling planting work, planting drive fixed to the front end side of the planting case (20). Planted case (20) with case (20a) and left and right side frames (20b) arranged outside the left and right outermost rotary cases
The planting case (20) is arranged substantially in the center of the planting part (15) in plan view, and the power from the main unit input to the drive case (20a) is applied to the rotation center. Since it is transmitted to the shaft (38), the planting case (20) and the left and right side frames (20b) are provided substantially parallel to the paddy field below the seedling take-off plate (36) in a side view. , Multiple Rotary Cases (21)
When installing a planting case, a single planting case (20) can be installed without the need for a plurality of planting cases (20) as in the conventional case, and moreover, this planting case (20) can be installed on the seedling table (16) Passing downward and planting part (1
5) It can be provided at a position closest to the central drive input section, and the transmission path of the driving force to the rotation center axis (38) can be set to the shortest distance, and even in such a multiple structure. The parts and weight are greatly reduced, the structure is made compact, and the economy is extremely excellent.

[Brief description of drawings]

1 is a side view of the rotary case, FIG. 2 is a side view of the whole, FIG. 3 is a plan view of the same, FIG. 4 is a plan view of a planting part, and FIG. 5 is a cross section of the rotary case. Explanatory drawing, FIG. 6 is a side surface explanatory drawing of the gear part of a rotary case. (16) …… Seedling stand (17) …… Planting claw (20) …… Planting case (21) …… Rotary case (38) …… Rotation center axis

Claims (1)

[Scope of utility model registration request] 1. A plurality of rotary cases (21) are supported in multiple rows in a skewered manner on a drive rotation center shaft (38) extending to the left and right outside of the planted case (20), and the rotary case ( A plurality of planting claws (17) to be attached to each of these cases (21) when rotating (21)
In a structure for performing seedling planting work by exercising a closed loop elliptical locus, a planting drive case (20a) fixed to the front end side of the planting case (20), and the left and right outermost rotary cases. Left and right side frames (20b) to be placed outside
Is provided in the planting case (20), the planting case (20) is disposed substantially in the center of the planting part (15) in plan view, and the drive case (20
The power from the unit input to a) is applied to the rotation center shaft (38).
Of the rice transplanter, which is characterized in that the planting case (20) and the left and right side frames (20b) are provided substantially parallel to the rice field below the seedling take-off plate (36) in a side view. Planting device.