JP2000152708A - Riding type rice plant transplanter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To simplify the machine body structure of a tractor and reduce the vertical attaching width to simplify the attachment structure and improve the balance of the tractor in both longitudinal and transverse directions. SOLUTION: In a riding type rice plant transplanting machine in which the transplanting part 15 is liftably arranged on the rear side of the tractor 1 and the tractor having the front and rear wheels 6, 8 is equipped with the engine 1, the driver's seat 13 and the steering handle 14, the attachment members 72, 75 are mounted upright on the upper face of a couple of the left and right body frames 3 that are extended in the longitudinal direction of the tractor 1 and the driver's seat 13 is arranged above the attachment members 72, 75 and the transplanting part 15 is linked via the linking mechanism 27 to the rear side of the attachment member 72 on the rear side of and beneath the driver's seat. In addition, the engine 2, the transmission case 4, the front accelerator 5, the rear accelerator case 7 are attached to the couples of body frames 3, as their positions are made different from one another in the longitudinal direction.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a planting apparatus for removing seedlings of one strain from a seedling table which is reciprocated right and left by a planting claw and planting the same in a field. The present invention relates to a riding type rice transplanter connected via a cylinder.

[0002]

2. Description of the Related Art Conventionally, as shown in JP-A-61-232926, a pair of left and right body frames which are long in the front-rear direction are provided substantially in parallel, and an engine, a transmission case, and a front axle case for mounting front wheels are provided. There is a technique in which a rear axle case for mounting a rear wheel is disposed on the vehicle body frame, and a planting portion is mounted on a rear portion of the vehicle body frame via a link mechanism.

[0003]

According to the prior art, a front axle case is provided below a transmission case.
Since the body frame extends forward and backward between the lower surface of the engine and the upper surface of the transmission case, the ground height of the body frame cannot be easily reduced, and the vertical width of the traveling vehicle cannot be reduced easily. There's a problem.

[0004]

According to the present invention, a planting portion is mounted on the rear side of a traveling vehicle so as to be able to move up and down, and an engine, a driver's seat and a steering wheel are arranged on a traveling vehicle having front and rear wheels. In the riding rice transplanter to be installed, a mounting member is erected on the rear upper surfaces of a pair of left and right body frames extending in the front-rear direction of the traveling vehicle, and a driver's seat is disposed above the mounting member, An engine, a transmission case, a front axle case, and a rear axle case are attached to the body frame at different positions in the front-rear direction while connecting the planting part to the rear side of the mounting member via a link mechanism. Simplifies the mounting structure of the transmission case, front axle case, and rear axle case, and reduces the vertical mounting width. Ryakuka well balanced improvement in longitudinal and lateral directions of the vehicle in which the obtaining aims to facilitate such.

[0005]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is an explanatory plan view of a traveling section, FIG. 2 is a side view of a riding rice transplanter, and FIG. 3 is a plan view of the same, wherein (1) is a traveling vehicle on which an operator rides, and an engine ( A transmission case (4) is mounted on the rear side of the vehicle body frame (3) on which the 2) is mounted on the front side, and paddy field running front wheels (6) are mounted on both rear sides of the engine (2) via a front axle case (5). At the same time, the rear wheels (8) for paddy field traveling are supported on both rear sides of the transmission case (4) via rear axle cases (7). Then, a spare seedling mount (10) is appropriately attached to both sides of the hood (9) covering the engine (2), and a step (11) is carried out.
The axle cases (5), (7) and the like are covered by a vehicle body cover (12) forming a vehicle, and a driver's seat (1) is provided above the vehicle body cover (12) above the transmission case (4).
3) is mounted, and a steering handle (14) is provided in front of the driver's seat (13) and behind the hood (9).

[0006] Further, in the figure, (15) is a planting portion having a seedling mounting table (16) for multiple planting and a plurality of planting claws (17). The rotary case (21) that supports the seedling mounting table (16) of the planting case (20) via a guide rail (18) and a guide rail (19) so as to be reciprocally slidable left and right and rotates at a constant speed in one direction. )
Is supported by the planting case (20), and the case (2)
Claw cases (22) and (22), which are a pair of planting arms, are disposed at symmetric positions about the rotation axis center of 1), and planting claws (17) and (17) are provided at the tip of the claw case (22). Attach.

[0007] A supporting frame (24) is provided on the front side of the planting case (20) via a pivot (23).
A support frame (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).
The traveling vehicle (1) is provided with an elevating cylinder (28) for elevating and lowering the planting portion (15) via 7), and the front and rear wheels (6) are provided.
(8) is driven to move at a substantially constant speed, and at the same time, two planting claws (17) and (17) are rotated from the seedling mounting table (16) reciprocating left and right by one rotation of the rotary case (21). Thus, two seedlings are taken out, and a seedling planting operation is continuously performed.

In the figure, (29) is a traveling speed change lever,
(29a) is a sub speed change lever, (30) is a planting elevating lever, (31) is a planting sensitivity adjusting lever, (31a) is a stop clutch lever, (32) is a traveling clutch pedal,
(33) and (33) are left and right brake pedals, (34)... Are floats for paddy leveling, and a planting depth adjustment link (3
The float (34) is supported below the planting case (20) via 5) or the like.

As shown in FIGS. 1, 4 and 5, the vehicle body frame (3) is formed in a ladder-shaped chassis structure extending from the front end to the rear end of the traveling vehicle. Four corners of the engine stand (38) are fixed to four engine brackets (36) integrally fixed on the front side of (3) by bolting the vibration-proof rubber (37) therebetween. Secure the engine (2) with bolts. On the other hand, a transmission case bracket (39) integrally fixed to the rear side of the body frame (3) so as to face each other.
The transmission case (4) is arranged in between, and front and rear and upper and lower intermediate portions are fixed to the bracket (39) by bolts on both side surfaces of the transmission case (4). A drive transmission shaft (40) is provided between the engine (2) and the transmission case (4).
A protruding piece (41) is formed to extend rearward from the right rear portion of the vehicle, and an output shaft (43) of the engine (2) is connected to a body frame (42) via a bearing member (42) fixed to the protruding piece (41) by bolts. 3) and the universal joint (4) is connected to the output shaft (43) and the input shaft (44) of the transmission case (4).
5), the both ends of the drive transmission shaft (40) are connected to each other, and the drive transmission shaft (40) is moved right and left within the left-right width of the vehicle body frame (3) and substantially upward from the front right end to the rear middle. And, it is stretched between the body frames (3) in a vertically inclined manner.

A front bumper (46) is provided at the front end of the body frame (3), and the front bumper (4) is provided.
A battery case (48) having an open front side and an upper side for mounting a battery (47) is provided in the middle rear of 6).
Body frame (3) on the front side of the engine stand (38)
Side plates (49) are integrally fixed on the upper surfaces of both sides.
The side walls of the case (48) are integrally fixed to the inner ends of the first left and right steel pipes (50), which are integrally fixed by penetrating through the intermediate portion of (9), and the rear end of the side plate (49) The rear side of the case (48) is integrally fixed to an intermediate portion of the second steel pipe (51) fixed horizontally to the frame (3). The front bumper (46) is rotatably supported on a fulcrum shaft (52) which is mounted on the lower surface of the bottom plate of the case (48).
3) to the side plate (49).

A front axle board (54) is stretched and fixed slightly to the front of the intermediate portion of the body frame (3), and the front axle (5) is provided below the board (54). Front and rear axle holders (55) on the lower surface of the front middle portion and the lower surface of the rear middle portion of the board (54)
The front axle (5) is bolted and fixed so that the front and rear flange portions (5a) and (5b) of the front axle (5) are rotatably fitted to the axle holders (55) and (55) via bushes. Supported. A second drive transmission is performed between the front end of the first output shaft (56) protruding from the front surface of the transmission case (4) and the input shaft (57) protruding from the rear flange portion (5b) of the front axle (5). Shaft (5
8) Linked interlocking.

As described above, a pair of left and right body frames (3) (3) which are long in the front-rear direction are provided substantially in parallel, and the engine (2), the transmission case (4) and the front wheels (6) are provided.
(6) Front axle case (5) for mounting, and rear axle case (7) for mounting rear wheels (8) and (8)
Is disposed on the vehicle body frame (3), and a planting portion (15) is mounted on a rear portion of the vehicle body frame (3) via a link mechanism (27). The transmission case (4) and the rear axle case (7), which have the engine (2) mounted between the front ends of the left and right body frames (3) and (3) and are integrally connected, are located behind the left and right body frames (3) and (3). Front and rear axles that are fixed to the ends and front axle cases (5) are disposed below the left and right body frames (3) and (3) behind the engine (2) and the front axle case (5) is supported in a freely rolling manner. Holder (55) (55)
Is attached to the lower surface of the body frame (3). Even when the large planting portion (15) is mounted, the front and rear balance can be maintained by the engine (2) and the transmission case (4) is provided by using the rear axle case (7). (4) It is possible to simplify the mounting structure and improve the workability of attachment and detachment, and to provide the front and rear axle holders (55) and (55) on the vehicle body frame (3) to simplify the mounting structure of the front axle case (5). The case (5) is configured so as to be able to improve the workability of attaching and detaching.

A substantially square handle board (59) extends forward and upward from the middle of the front end of the front axle board (54), and the front end of the board (59) is mounted on the engine mount. (38) A reinforcing frame (61) which is integrally fixed to a connecting pipe (60) horizontally fixed to a vehicle body frame (3) below a rear end, and is further provided between the connecting pipe (0) and the second steel pipe (51). A steering column (62) is bolted and fixed to the handle substrate (59), and the handle (14) is attached to the upper end to form a handle column (63) whose middle part is bendable. It is erected and fixed to the steering box (62). Further, a support shaft (64) is fixed to the inclined upper end side of the reinforcing frame (61) by hanging down, and a bracket (65) integrally fixed to the second steel pipe (51) penetrates and supports the middle of the support shaft (64). Then, one end of a steering cylinder (66) is rotatably connected to the support shaft (64), and the cylinder (66) is connected to a steering arm (68) for connecting one end of each tie rod (67) of the front wheel (6). 66)
Of the piston rod (66a).

A flange (69) is formed inside the final case (7a) of the rear axle case (7), and a rear axle case (7) is formed on both sides of a rear end of the body frame (3) via the flange (69). And the front end of the rear axle case (7) is bolted and fixed to the rear surface of the transmission case (4), and the first output shaft (56) of the transmission case (4) is fixed.
Input shaft of rear end and rear axle case (7) (not shown)
And are linked in conjunction.

A PTO shaft (70) for distributing the driving force to the planting device (15) also projects from the rear surface of the transmission case (4).

A pair of left and right reinforcing pipes (71) are stretched in a C-shape below the middle part of the body frame (3), and the front ends of the pipes (71) are bolted to the front and rear axle holders (55). At the same time, the rear end is bolted and fixed to the flange (69) of the rear axle case (7).

Further, a gate-shaped rear frame (72) which is erected and fixed to the rear end of the vehicle body frame (3), a transmission case (4) a front side vehicle body frame (3) and side plates (7) on both sides.
A pair of left and right cylinder frames (75) are stretched and fixed in parallel between the third steel pipe (74) having both ends integrally fixed to the third piece (3), and a synthetic resin cylindrical shape is provided between the frames (75). The elevating cylinder (28) having the cushioning member (28b) is arranged, and a fulcrum pin (77) is provided on the bearing (76) in the middle of the frame (75) so as to protrude and fix the elevating cylinder (28) on both sides of the middle. It is pivoted freely. Then, one end of the top link (25) is pivotally connected to a horizontal shaft (78) suspended between the inclined upper ends of the cylinder frame (75), while being attached to both sides of the rear frame (72). One end of the lower link (26) for integrally fixing the lower end of the elevating arm (80) to the provided cylindrical shaft (79) is swingably mounted on the shaft, and the elevating cylinder is mounted on the upper end of the elevating arm (80). (28) piston rod (28
a) The tip is pivotally pivoted. In addition, traveling car (1)
A planting part (15) is mounted on the rear side of the vehicle so as to be able to move up and down, and an engine (2), a driver's seat (13) and a steering wheel (1) are mounted on a traveling vehicle (1) having front and rear wheels (6) and (8). 14)
The link mechanism (27) for supporting the planting part (15) is connected to the rear part of the body frame (3), and the lifting cylinder (28) is attached to the front body frame (3). To the link mechanism (27)
Using the space between the body frame (3) and the driver's seat (13), an elevating cylinder (28) is installed above the body frame (3) on the longitudinal center line of the body, and the elevating cylinder (2) is installed.
8) Simplification of the protection and muddy water adhesion prevention structure, simplification of the connection structure between the lifting cylinder (28) and the link mechanism (27), and securing of rigidity.

As is clear from the above, the planting portion (15) is mounted on the rear side of the traveling vehicle (1) so as to be able to move up and down.
In a riding type rice transplanter in which an engine (2), a driver's seat (13), and a steering handle (14) are disposed on a traveling vehicle (1) having front and rear wheels (6) and (8), the traveling vehicle (1) A rear frame (72) and a cylinder frame (75), which are mounting members, are erected on the upper surfaces of the rear portions of a pair of left and right body frames (3) extending in the vertical direction, and above the rear frame (72) and the cylinder frame (75). The driver's seat (13) is disposed in the rear frame (72) below the driver's seat (13).
The planting section (15) is connected to the rear side via a link mechanism (27), and the engine (2), the transmission case (4), the front axle case (5), and the rear axle case (7) are mutually forward and backward. It is attached to the body frame (3) at different positions in the direction, and simplifies the mounting structure of the engine (2), the transmission case (4), the front axle case (5), and the rear axle case (7) and mounts it in the vertical direction It is possible to easily reduce the width, simplify the mounting structure of the planting portion (15), improve the balance in the front-rear and left-right directions of the traveling vehicle (1), and lower the center of gravity of the traveling vehicle (1). The front side of the transmission case (4) is also fixed by bolts via a bracket (75b) to a connecting pipe (75a) which is fixed horizontally to the lower end of the inclined cylinder frame (75).

Further, a front support frame (82) is provided between upper ends of side bumpers (81) integrally fixed at the outer ends of the left and right first steel pipes (50), and a front axle case (5) and an elevating cylinder frame are provided. Intermediate support frames (85) and (86) via the brackets (83) and (84) on the body frame (3) between (75) and a rear support frame (87) on the inclined upper end of the elevating cylinder frame (75).
And a support pipe (88) integrally fixed to the outside of the front body frame (3) outside the front axle case (5) and the front support frame (82) side end. Left and right support frames (89) are stretched, set pins (90) are implanted on both upper surfaces of the frames (82), (86) and (87), and a patch key (91) is inserted as shown in FIG. The frames (82), (86), and (87) are mounted on both sides of the frames (82) via brackets (92).

As shown in FIG. 7, a hole (12a) for projecting the engine (2) and the steering handle (14) is formed on the front side of the vehicle body cover (12).
Each frame (82) (85) (86) (87) (89) from above the body frame (3) through the hole (12a).
The frame is supported on the upper surface, and the frames (82) (85) (86) (87) (8)
A circular recess (93) is formed at a position corresponding to (9), a circular recess (95) having a position fixing hole (94) through which the set pin (90) passes is formed, and the patch key (91) is further formed. A hook (96) for engaging the vehicle body is appropriately fixed to the lower surface of the vehicle body cover (12), and the vehicle body cover (12) is detachably mounted on the upper surface side of the vehicle body frame (3).

The hole (12) of the vehicle body cover (12)
The bonnet (9) is attached to a).

A step (97) for riding is provided outside the vehicle body cover (12) between the front wheel (6) and the rear wheel (8). The intermediate part support frame (86) and the vehicle body frame (3) are provided. On the outside, the support arm (9
8) is integrally fixed.

The brake pedals (33) and (33)
Is supported by a pedal shaft (99) inserted into the third steel pipe (74), while the traveling clutch pedal (32) is fixed horizontally across a side plate (73) for mounting the third steel pipe (74). It is supported by the outer cylinder (101) of the shaft (100).

As described above, the engine (2), a steering device having a steering handle, a front axle case (5), a transmission case (4), a rear axle case (7), a lifting cylinder (28), a three-point link mechanism ( 2
7), a body cover (12), a hood (9) and the like are mounted on the body frame (3) to constitute a traveling vehicle (1), and the driving force of the engine (2) on the front side of the body frame (3) is reduced. The transmission is distributed from the transmission case (4) on the rear side of the frame (3) to the front axle case (5), the rear axle case (7) and the planting device (15).

[0025]

As is apparent from the above embodiments, the present invention has a planting portion (15) mounted on the rear side of the traveling vehicle (1) so as to be able to move up and down and the front and rear wheels (6) and (8). In a riding type rice transplanter in which an engine (2), a driver's seat (13) and a steering handle (14) are arranged on a traveling vehicle (1) provided, a pair of right and left vehicle bodies extending in the front-rear direction of the traveling vehicle (1) Mounting members (72) and (75) are erected on the rear upper surface of the frame (3), and the driver's seat (1) is mounted above the mounting members (72) and (75).
3) is arranged, and the planting portion (1) is provided via a link mechanism (27) on the rear side of the mounting member (72) at the rear lower portion of the driver's seat (13).
5) and the engine (2), the transmission case (4), the front axle case (5), and the rear axle case (7) were attached to the body frame (3) at different positions in the front-rear direction. The mounting structure of the engine (2), the transmission case (4), the front axle case (5), and the rear axle case (7) can be simplified, and the mounting width in the vertical direction can be easily reduced. The attachment portion (15) can easily simplify the mounting structure and improve the balance in the front-rear and left-right directions of the traveling vehicle (1).

[Brief description of the drawings]

FIG. 1 is an explanatory plan view of a traveling vehicle unit.

FIG. 2 is a side view of the riding rice transplanter.

FIG. 3 is a plan view of the same.

FIG. 4 is an explanatory side view of FIG. 1;

FIG. 5 is an explanatory sectional view of the same.

FIG. 6 is an explanatory view of mounting a vehicle body cover.

FIG. 7 is an explanatory plan view of the vehicle body cover.

[Explanation of symbols]

 (1) Vehicle (2) Engine (3) Body frame (4) Transmission case (5) Front axle case (6) Front wheel (7) Rear axle case (8) Rear wheel (13) Driver's seat (14) Steering handle (15) Planting part (27) Link mechanism (72) Rear frame (mounting member) (75) Cylinder frame (mounting member)

Claims (1)

[Claims] 1. A riding type rice transplanter in which a planting portion is mounted on a rear side of a traveling vehicle so as to be able to move up and down and an engine, a driver's seat and a steering wheel are arranged on the traveling vehicle having front and rear wheels. A mounting member is erected on the rear upper surface of a pair of left and right body frames extending in the front-rear direction of the vehicle, a driver's seat is disposed above the mounting member, and a link mechanism is provided behind the mounting member behind the driver's seat via a link mechanism. A riding type rice transplanter wherein an implanting portion is connected, and an engine, a transmission case, a front axle case, and a rear axle case are attached to a vehicle body frame at different positions in the front-rear direction.