JP3151522B2 - Riding rice transplanter - Google Patents

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]

Conventionally, JP-A-63-14605 or
As disclosed in JP-A-61-83818 , an elongated vehicle body frame is provided in the front-rear direction, and an engine, a transmission case, a front axle case for mounting front wheels, and a rear axle case for mounting rear wheels are provided on the vehicle body. There is a technique in which a planting portion is provided at the front and rear portions of a frame and a planting portion is provided at a rear portion of the vehicle body frame via a link mechanism.

[0003]

The prior art has a structure in which the strength against the bending deformation load in the vertical direction is secured only by the body frame without specially providing a reinforcing member on the body frame. There is a problem that it is not possible to easily reduce the cross-sectional outer dimension or the cross-sectional thickness of the vehicle body frame, and it is not easy to reduce the manufacturing cost of the vehicle body frame.

[0004]

SUMMARY OF THE INVENTION Accordingly, the present invention provides a front and rear axle case, 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 front and rear wheels are mounted. In a riding type rice transplanter in which an engine, a driver's seat, and a steering handle are disposed on the upper surface side of the body frame, 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 traveling vehicle. A driver's seat is disposed above the mounting member, and a planting portion is connected to the rear side of the vehicle body frame below the driver's seat via a link mechanism,
A reinforcing frame is provided substantially parallel to the side view below the vehicle body frame, the reinforcing frame front and rear portions are connected to the front and rear portions of the vehicle body frame, and the middle portion of the upper frame, which is elongated in the left-right width direction of the traveling vehicle, is an upper end of a mounting member. To the vehicle body
The intermediate part is fixed above the rear part of the
The intended left and right side of the top frame was extended in the lateral direction to give easily enhance the strength of the body frame for bending deformation load of the upper downward by the reinforcing frame, the manufacturing cost of the vehicle body frame easily The rear end of the vehicle body cover that covers the upper surface of the vehicle body frame can be supported at approximately the same height as the driver's seat mounting surface via the upper surface frame. By simply extending the upper surface frame in the left-right direction, the rear end of the vehicle body cover can be reduced. The left and right width of the part can be easily enlarged at a position higher than the rear wheel, and a planting auxiliary work space such as a seedling connection can easily be secured on the rear upper surface of the traveling vehicle.

[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 section (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).
The body frame (3) on the front side of the engine stand (38)
Side plates (49) are integrally fixed on the upper surfaces on 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) that is mounted on the lower surface of the bottom plate of the case (48), and both sides of the bumper (46) are openably and closably set bolts (5).
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 (5b) of the front axle (5). Shaft (5
8) Linked interlocking.

As is apparent from the above description, a pair of left and right body frames (3) (3) that 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) A front axle case (5) for mounting and a rear axle case (7) for mounting rear wheels (8) and (8) are disposed on the body frame (3), and are provided at the rear of the body frame (3). Link mechanism (2
A transmission case (4) in which an engine (2) is mounted between front end portions of left and right body frames (3) and (3) in a rice transplanter having a planting portion (15) installed through 7). And the rear axle case (7) are fixed to the rear ends of the left and right body frames (3) and (3), and the front axle case (5) is arranged below the left and right body frames (3) and (3) behind the engine (2). And front and rear axle holders (55) and (55) for supporting the front axle case (5) in a freely rolling manner are attached to the lower surface of the vehicle body frame (3). Even when the large planting portion (15) is mounted, the front and rear balance can be maintained by the engine (2) by the engine (2), and the transmission case (4) is provided by using the rear axle case (7). (4)
In addition to simplifying the mounting structure and improving the detachability, the front and rear axle holders (55) and (55) are provided on the vehicle body frame (3) to simplify the mounting structure of the front axle case (5) and the case (5). 5) It is configured 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 portion (15) is connected to the rear 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 described 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 and the traveling vehicle (1) having the front and rear wheels (6) and (8) is mounted on the traveling vehicle (1). 2) In a riding type rice transplanter having a driver's seat (13) and a steering handle (14), a pair of left and right body frames (3) extending in the front-rear direction of the traveling vehicle (1) are attached to the rear upper surface of the pair. A rear frame (72) and a cylinder frame (75), which are members, are erected, an operator's seat (13) is arranged above the cylinder frame (75), and a rear frame (72) below the driver's seat (13). The planting portion (15) is connected to the rear side via a link mechanism (27), and the lifting cylinder (28) is located above the vehicle body frame (3) and on the lower side of the driver's seat (13).
The plant is connected to the link mechanism (27) to simplify the mounting structure of the planting portion (15) and to secure the supporting strength of the planting portion (15). To 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, the vehicle body cover (12) is provided with a hole (12a) on the front side for projecting the engine (2) and the steering handle (14).
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. The hook (96) for engaging the vehicle body (12) 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).

As described above, the front and rear axle case (5) in which the planting portion (15) is mounted on the rear side of the traveling vehicle (1) so as to be movable up and down and the front and rear wheels (6) and (8) are mounted.
(7) The vehicle (1) is provided on the front and rear portions of the body frame (3) of the traveling vehicle (1), and the engine (2), the driver's seat (13), and the steering handle (14) are disposed on the upper surface of the body frame (3). In the type rice transplanter, a rear frame (72) as a mounting member and a cylinder frame (7) are mounted on rear upper surfaces of a pair of left and right body frames (3) extending in the front-rear direction of the traveling vehicle (1).
5), the driver's seat (13) is disposed above the frames (72) and (75), and the link mechanism (27) is provided on the rear side of the vehicle body frame (3) below the driver's seat (13). And a reinforcing pipe (71), which is a reinforcing frame, is provided substantially parallel to a side view below the vehicle body frame (3), and the front and rear portions of the vehicle body frame (3) are connected to the planting portion (15). The front and rear portions of the reinforcing pipe (71) are connected, and a middle portion of a rear support frame (87), which is an upper frame elongated in the width direction of the traveling vehicle (1), is attached to an upper end of the rear frame (72). Front above rear of frame (3)
After the frame (72) and the cylinder frame (75)
The rear support frame (8)
The left and right sides of 7) extend in the left and right direction . Further, the planting portion (15) support structure and the body frame (3) lower surface side structure can be easily simplified, and the strength of the body frame (3) against the bending deformation load in the vertical direction is enhanced by the reinforcing pipe (71). As compared with the conventional structure in which the required strength is secured only by the body frame (3), the cross-sectional dimensions and the thickness of the body frame are reduced to reduce the manufacturing cost, and the upper surface of the body frame (3) The rear end of the vehicle body cover (12) that covers the vehicle is supported at approximately the same height as the mounting surface of the driver's seat (13) via the rear support frame (87), and the rear support frame (87) is simply extended in the left-right direction. The lateral width of the rear end of the vehicle body cover (12) is enlarged at a position higher than the rear wheel (8), and a planting assistance work space such as a seedling connection is secured on the rear upper surface of the traveling vehicle (1). The hood (9) is attached to the hole (12a) of the vehicle body cover (12).

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). The front and rear axle cases (5) and (7) to be installed are provided on the front and rear portions of the body frame (3) of the traveling vehicle (1), and the engine (2), the driver's seat (13), and the steering are provided on the upper side of the body frame (3). In a riding type rice transplanter provided with a handle (14), mounting members (72) and (75) are erected on the rear upper surfaces of a pair of left and right body frames (3) extending in the front-rear direction of the traveling vehicle (1). The driver's seat (13) above the mounting members (72) and (75)
Is disposed, and the planting portion (1) is provided via a link mechanism (27) on the rear side of the body frame (3) below and behind the driver's seat (13).
5), a reinforcing frame (71) is provided below the vehicle body frame (3) substantially in parallel in a side view, and the reinforcing frame (71) front and rear portions are connected to front and rear portions of the vehicle body frame (3), The middle part of the upper frame (87), which is long in the width direction of the traveling vehicle (1), is attached to the mounting members (72) (7).
5) Attached to the upper end , above the rear of the body frame (3)
To the middle part via the mounting members (72) and (75).
Left and right sides of the upper frame (87)
One obtained by extending, the strength of the body frame (3) for bending deformation load of the upper downward easily enhanced by the reinforcing frame (71), can be easily reduced manufacturing cost of the vehicle body frame and The rear end of the vehicle body cover (12) covering the upper surface of the vehicle body frame (3) can be supported at approximately the same height as the mounting surface of the driver's seat (13) via the upper surface frame (87). Just by extending it, the left and right width of the rear end of the body cover (12) can be easily expanded at a position higher than the rear wheel (8), and a planting auxiliary work space such as seedling connection can be easily secured on the rear upper surface of the traveling vehicle (1). You can do it.

[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 (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 (71) Reinforcement pipe (reinforcement frame) (72) Rear frame (mounting member) (75) Cylinder frame (mounting member) (87) Rear support frame (top frame)

Claims (1)

(57) [Claims] 1. A front and rear axle case (5) (7) in which a planting portion (15) is mounted on the rear side of a traveling vehicle (1) so as to be able to move up and down, and front and rear wheels (6) and (8) are installed. Is mounted on the front and rear portions of a vehicle frame (3) of a traveling vehicle (1), and an engine (2), a driver's seat (13), and a steering handle (14) are disposed on the upper surface of the vehicle frame (3). , Mounting members (72) (7) are mounted on the rear upper surfaces of a pair of left and right body frames (3) extending in the front-rear direction of the traveling vehicle (1).
5), the driver's seat (13) is disposed above the mounting members (72) and (75), and the link mechanism (27) is provided on the rear side of the vehicle body frame (3) below the driver's seat (13). The planting portion (15) is connected via a reinforcing frame (71) substantially parallel to the side view below the vehicle body frame (3) in a side view.
And the front and rear portions of the reinforcing frame (71) are connected to the front and rear portions of the body frame (3), and the middle portion of the upper frame (87), which is long in the left-right width direction of the traveling vehicle (1), is attached to the mounting member (72). (75) The body frame is attached to the upper end.
(3) The mounting members (72) and (75) are located above the rear part of the rear part.
Left of the top frame (87) to fix the middle part
A riding type rice transplanter characterized by extending the right side in the left-right direction .