JPH0620347Y2 - Rice transplanter planting device - Google Patents

Description

[Detailed description of the device] "Industrial application field" The present invention is equipped with a seedling mounting table that can be reciprocated left and right, and a planting claw for picking and planting one seedling from the seedling mounting table. TECHNICAL FIELD The present invention relates to a planting device of a rice transplanter for performing rice transplanting work.

[Prior Art] Conventionally, as shown in Japanese Patent Laid-Open No. 60-199309, a rotary case that rotates at a constant speed in one direction is provided, and the rotary case is planted symmetrically around a rotary shaft center via a claw case. A technique has been developed in which nails are attached and two seedlings are planted in one rotation of the rotary case.

[Problems to be Solved by the Invention] In the above-mentioned conventional technology, by reducing the turning radius of the claw case, it is possible to shorten the rotary case length and prevent interference with the float. Since the mounting interval is reduced and the claw case shaft of one claw case interferes with the other claw case and the planting claw in a side view, a plurality of claw cases can be installed coaxially in a row to form a single rotary case. It becomes impossible to rotationally move multiple rows of planting claws, and a rotary case corresponding to the number of planting rows is required, which reduces the number of mounted rotary cases, simplifies the rotary case drive system, and reduces the cost. There was a problem that weight reduction was impossible.

[Means for Solving the Problems] However, the present invention is provided with a rotary case that rotates at a constant speed in one direction, and the planting claws are mounted symmetrically around the rotary shaft center of the rotary case via the claw case. In the device
The rotary case is arranged at a lateral position of the float, the front and rear length of the float is formed longer than that of the rotary case, and the support members before and after the float are provided further forward and backward than the front and rear of the rotary case. It is a thing.

[Operation] Therefore, even if the rotary case length is increased and a pair of front and rear claw cases are mounted at non-interfering intervals, interference between the rotary case and the float can be prevented, and a plurality of claw cases can be installed side by side on the same axis. It is possible to rotate a plurality of rows of planting claws with a single rotary case, and it is possible to reduce the number of rotary cases to be mounted, simplify the drive system of the rotary case, reduce the cost, and reduce the weight. With the float connected through the member, the planting portion can be stably supported against the rotational vibration of the rotary case and the claw case.

[Embodiment] An embodiment of the present invention will be described below in detail with reference to the drawings. Fig. 1 is a plan view of the planting section, Fig. 2 is a side view of the riding rice transplanter, and Fig. 3
The figure shows the same plan view, in which (1) is a traveling vehicle mounted by an operator, the rear end of the vehicle body frame (3) on which the engine (2) is mounted is connected to the mission case (4), and The front case (5) for supporting the paddy field front wheels (6) on both front sides of the mission case (4) and the transmission cases (7) which are axle cases on both rear sides of the mission case (4). And a 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
A rotary case (21), which is supported by the planting case (20) so as to be slidable left and right reciprocally via the 9) and is rotated at a constant speed in one direction, as shown in FIG. Further, the claw cases (22) and (22) are disposed in the rotary case (21) at symmetrical positions with respect to the center of the rotary shaft, and the claw cases (22) are fitted with the planting claws (17). Further, a support frame (24) is provided on the front side of the planting case (20) via a center pin (23), and a three-point link mechanism (27) including a top link (25) and a lower link (26) is used. A support frame (24) is connected to the rear side of the traveling vehicle (1), and an elevating cylinder (28) for elevating and lowering the planting part (15) through the link mechanism (27) is provided, and the front and rear wheels (6) ( At the same time as driving 8) to move at a substantially constant speed, the seedlings (16) that slide back and forth to the left and right release one seedling of one plant by the planting claws (17) to continuously perform rice planting work. Configure to do.

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) is a float for leveling the field, which supports the floats (34) below the planting case (20) via a planting depth adjusting link (35) and the like.

Further, as shown in FIG. 1, the seedling take-out port (37) of the seedling take-out plate (36) provided at the lower end of the seedling placing table (16) is attached to the rotary case (21) via the claw cases (22) (22). Two planting claws provided (17) (17)
Are alternately moved, and two seedlings are planted by one rotation of the rotary case (21) by the two planting claws (17) (17).

Then, as shown in FIGS. 5 and 6, the planted case
(20) The pawl drive shaft (38) is rotatably supported at the rear end, and the rotary cases (21) and (21) are symmetrically fixed to both ends of the drive shaft (38). A sprocket (40) for suspending (39) is rotatably supported in the middle of the drive shaft (38), and the sprocket (40) is interlocked with the drive shaft (38) via a safety clutch (42).

Further, the sun gear (46) is loosely fitted to the planting pawl drive shaft (38),
The sun gear (46) is fixed to the planting case (20) through the phase adjusting lever (47) so that the sun gear (46) can be adjusted in phase, and the idle gear (48) and planetary gear (49) having the same number of teeth as the sun gear (46). Equipped with. The idle gear (48) is fixed to the claw case (22) via the intermediate shaft (50), and the claw case shaft (5
1) through the planetary gears (49) to the rotary case
(21) The above gears (46), (48) and (49) are axially supported inside.
Eccentric to the respective shafts (38) (50) (51) for axial support, and the planetary gears (49) (49) are constantly meshed with the sun gear (46) via idle gears (48) (48). , The sun gear (46) is fixedly supported on the planted case (20), and the rotary case (21) is rotated at a constant speed through the planted claw drive shaft (38).
1) Alternately move the planting claws (17) (17) at both ends to the seedling placing table (16) to the seedling take-out port (37) at the lower end of the inclination, and at the same time the rotary case
In conjunction with the rotation of (21), the claw case shaft (51) is rotated at a non-constant speed via each of the gears (46) (48) (49), and after the seedling cutting of the seedling mounting table (16) is cut, it is applied to the rice field The rotation of the claw case shaft (51) is slower than the rotation of the rotary case (21), and the claw is rotated more than the rotation of the rotary case (21) between the seedling planting on the rice field and the seedling take-out port (37). Rotate the case shaft (51) faster so that the rotation of the rotary case (21) and the rotation of the pawl case shaft (51) near the seedling take-out port (37) and the paddy planting part are almost equal, and the planting pawl ( The drive shaft (38) at the center of the rotary case (21) is located inside the circular shape in side view formed by the planting locus of (17).

Further, one end of the cam shaft (53) is rotatably fixed to the rotary case (21) through a position adjusting lever (52), and the claw case shaft (51) to be loosely fitted penetrates the middle of the cam shaft (53). Then, the cam shaft (53) is connected via the push arm (55) to the push rod (54) connected to the push-out claw (17a) for forced planting,
When the planting claw (17) plunges into the paddy field, the push rod (54) is advanced through the cam shaft (53) and push arm (55), and the pushing claw (17a) inserts it into the planting claw (17). The seedlings are extruded into the soil.

Further, as shown in FIG. 1 and FIG. 4, the planting frames (56) (57) (58) (58) (59) at the front, rear, left and right sides and in the center are connected to the planting case (20). , The frames (56) (57) (58) (59) are connected in a horizontal day shape in plan view and the planting part (15)
Centered case (20) Rotary case arranged on both sides
Bearing cases (60) and (60) are installed opposite to (21) and (21), and the middle of the bearing case (60) is supported by the support shaft (61).
Support inside. And install the pawl case shaft (51) between the rotary case (21) and the bearing case (60), and
(51) Four claw cases (22) are provided on the core at equal intervals, and a plurality of planting claws (17) are arranged side by side in a multiple type, and two claw cases (21) are provided for one rotary case (21). Install one set of 4 planting claws (17) for 4 rows and arrange the rotary cases (21) (21) and bearing cases (60) (60) at the lateral position of the float (34). Claw case (22) provided on the core of one claw case shaft (51) so that the turning radii of each of these cases (21) (21) (60) (60) overlap the float (34) in side view. ) And the claw case (22) provided on the core of the other claw case shaft (51) and the planting claw (17) are formed so that the cases (21), (21), (60) and (60) are formed in a size that does not interfere with each other. ing. As is clear from the above, the rotary case (2
1), the rotary case (21) is attached to the rotary case (21) symmetrically about the axis of rotation of the rotary case (21) via the pawl case (22), the rotary case (21) is floated (34). ), And the front and rear planting frames (56) (57), which are the support members before and after the float (34), are formed to have a longer front-rear length than the rotary case (21). It is provided on the front and rear sides further than the front and rear of the rotary case (21).

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.
(46) (48) (49) via the claw case shaft (51) non-uniform rotation,
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.

At this time, the rotary case (21) (21) and the bearing case (60)
(60) is arranged on the side of the float (34), so even if the float (34) moves up and down due to unevenness of the rice field, each case
(21) (21) (60) It can rotate without interfering with (60), and the claw case (22) and the planting claw (22) provided on one claw case shaft (51) on the other claw case shaft (51). Since 17) does not interfere with each other, it is possible to arrange four claw cases (22) side by side on the same claw case shaft (51) core, and a single rotary case (21) can be used to plant eight claws for four rows. It is capable of rotating the attached claw (17).

Further, in the above-mentioned embodiment, the center drive type in which the planting claw driving members such as the rotary cases (22) (22) are concentrated in the floats (34) (34) at approximately the center of the seedling mounting table (16). Is.

Further, as shown in FIG. 7, by the side drive system in which the planting pawl drive member such as the rotary case (22) is provided on the outermost side of the machine body, the interference between the rotary case (22) and the float (34) is achieved. It is also possible to prevent

[Advantages of the Invention] As is apparent from the above embodiments, the present invention includes the rotary case (21) that rotates in one direction at a constant speed, and the claw case (symmetrically around the rotary shaft center of the rotary case (21). In the device with the planting claw (17) attached via the (22), the rotary case (21) is arranged at the lateral position of the float (34), and the float (34) front and rear are arranged more than the rotary case (21). Longer length, the support members (56) (57) in front of and behind the float (34) are provided further forward and backward than the front and rear of the rotary case (21). Even if a pair of claw cases (22) and (22) are installed at non-interfering intervals, the rotary case (2
1) and the float (34) can be prevented from interfering with each other, and a plurality of claw cases (22) ... are arranged side by side on the same shaft core to form a single rotary case (2
By 1) it is possible to rotationally move multiple rows of planting claws (17), and it is extremely easy to reduce the number of mounted rotary cases (21), simplify the drive system, reduce cost, and reduce weight. The floating case (2) is connected by the support members (56) and (57), and the rotary case (2
1) and the planting part (15) against the rotational vibration of the nail case (22).
Can be stably supported.

[Brief description of drawings]

FIG. 1 is a plan view of a planting part showing an embodiment of the present invention, FIG. 2 is an overall side view of a riding rice transplanter, FIG. 3 is a plan view of the same, and FIG. 4 is a side view of the planting part. FIG. 5 is a partial plan view of the same, FIG. 6 is an explanatory view of a planting claw planting locus, and FIG. 7 is an overall plan view of a riding rice transplanter showing another embodiment. (17)… Planted claw (21)… Rotary case (22)… Claw case (34)… Float

Claims (1)

[Scope of utility model registration request] 1. A rotary case (2) that rotates at a constant speed in one direction.
1), the rotary case (21) is attached to the rotary case (21) symmetrically about the axis of rotation of the rotary case (21) via the pawl case (22), the rotary case (21) is floated (34). ), And the float (34) front-rear length is made longer than the rotary case (21), and the support members (56) (57) before and after the float (34) are attached to the rotary case (21). A planting device for a rice transplanter, which is provided on the front and rear sides further than the front and rear sides.