JP3259175B2 - 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]

2. Description of the Related Art Conventionally, as shown in JP-A-63-14605, a long axle frame is provided in the front-rear direction, an engine, a transmission case, a front axle case for mounting front wheels, and a rear axle for mounting rear wheels. There is a technique in which a case 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]

In the above prior art, since a heavy load such as an operator sitting on a driver's seat or a planted portion is supported only by the body frame, the middle of the body frame is vertically moved by a moment deformation force. Deformation may cause problems such as damage to the traveling drive shaft due to changes in the front and rear axle case installation intervals in the front and rear parts of the body frame, and problems such as simplification of the body frame structure and cost reduction cannot be easily achieved. is there.

[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 type rice transplanter to be installed, the 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, the driver's seat is disposed above the mounting member, The planting part is connected to the rear side of the body frame via a link mechanism, and is elongated in the width direction of the traveling vehicle.
Mounting Rutotomoni the support frame to the mounting member upper, substantially is parallel connected in a side view a pair of left and right reinforcing pipes rear right and left vehicle body frame rear portion lower side in the mounting member downwardly, right and left vehicle body
A drive transmission shaft is arranged between the frame and the left and right reinforcing pipes, and the rear end of the body cover that covers the upper surface of the body frame
Through the support frame at approximately the same height as the driver's seat mounting surface.
Can be supported by simply extending the support frame in the horizontal direction
The left and right width of the rear end of the body cover at a position higher than the rear wheel.
Can be easily expanded and run through planting assistance work spaces such as seedlings
With readily secured to the vehicle upper rear surface, resulting easily reduced planting platform weight added to the vehicle body frame as a deformation force from the link mechanism by sharing the reinforcing pipe, the vehicle body frame
Simplifies the running vehicle structure by forming the
And production costs can be easily reduced.
Drive transmission shaft using space between frame and reinforcement pipe
To reduce the height of the body frame above ground, etc.
It can be easily operated and driven by the protection of the lower side of the reinforcing pipe.
Problems such as the contact of the power transmission shaft with the ridge and the winding of straw grass
It can easily be lost .

[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 described above, 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) Front axle case (5) for mounting, and rear axle case (7) for mounting rear wheels (8) (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). Also, the engine (2) is mounted between the front ends of the left and right body frames (3) and (3), and the transmission case (4) and the rear axle case (7), which 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 arranged 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) 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 body frame (3) to simplify the mounting structure of the front axle case (5). The case (5) is configured so as 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) which is horizontally fixed to a vehicle body frame (3) below a rear end, and is further provided between the connecting pipe (6) 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 project 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 handle ( 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 is apparent from the above description, 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). A driver's seat (13) is disposed on the rear frame (72) below the driver's seat (13).
A planting portion (15) is connected to the rear side via a link mechanism (27), and a rear portion described below that is long in the left-right width direction of the traveling vehicle (1).
The supporting frame (87) is connected to the rear frame (72) and the syringe.
Da frame (75) attached to the upper Rutotomoni, provided the planting unit through a link mechanism (27) a lifting cylinder for lifting (28) (15) to the cylinder frame (75), said mounting member (72) (75) Left and right body frame (3) A pair of left and right reinforcing pipes (71) on the rear lower side.
The rear part is connected substantially parallel in side view, and the left and right body frames
A drive transmission shaft between (3) and the left and right reinforcing pipes (71)
The input shaft (57) or the second drive transmission shaft (58) is arranged.
The lifting cylinder (28) is attached to the vehicle body frame (3) as a deforming force from the lifting cylinder (28) and the link mechanism (27) as a deformation force by simplifying the mounting structure of the lifting cylinder (28) and securing the mounting strength. ) is reduced by sharing the weight of the reinforcing pipe (71), a body frame
(3) A traveling vehicle (1) formed of a less rigid material than before
To simplify the structure and reduce manufacturing costs,
Use space between the frame (3) and the reinforcing pipe (71).
The drive transmission shafts (57) and (58) are arranged using
It is easy to reduce the ground height of the body frame (3).
And the lower side protection of the reinforcing pipe (71)
The drive transmission shafts (57) and (58) come into contact with the ridges,
It can easily eliminate inconveniences such as winding.
You. 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. A hook (96) for engaging the vehicle body (3) is fixed to the lower surface of the vehicle body cover (12) as appropriate, and the vehicle body cover (12) is detachably mounted on the upper surface side of the vehicle body frame (3). Body covering the top side
The rear end of the cover (12) is almost the same as the mounting surface of the driver's seat (13)
At the same height via the rear support frame (87),
Just extend the rear support frame (87) in the horizontal direction
The left and right width of the rear end of the body cover (12) from the rear wheel (8)
Planting work space such as seedlings
On the rear upper surface of the traveling vehicle (1) .

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), and a planting portion (1) is provided via a link mechanism (27) on the rear side of the vehicle body frame (3) below the driver's seat (13).
5), and a long support in the left and right width direction of the traveling vehicle (1).
Holding frame (87) on top of mounting members (72) (75)
Mounting Rutotomoni, the mounting member (72) (75) right and left vehicle body frame (3) below the rear lower left and right pair of reinforcing pipe side (71) rear substantially to parallel connected in a side view, and left and right sides of the vehicle
Drive transmission between body frame (3) and left and right reinforcing pipes (71)
Shaft (57) (58) one obtained by placing the body off
The rear end of the vehicle body cover (12) that covers the upper side of the frame (3)
Support frame at approximately the same height as the driver's seat (13) mounting surface
( 87) can be supported via the support frame (87)
Just extend it to the right to cover the rear end of the body cover (12).
The left and right width can be easily expanded at a position higher than the rear wheel (8),
In the auxiliary work space for planting, such as the transfer of seedlings, on the rear part of the traveling vehicle
Easily can be ensured on the surface, it can be easily reduced by sharing the planting unit to be added to the body frame (3) as a deformation force from the link mechanism (27) (15) weight reinforcing pipe (71), a body frame (3) lower rigidity than before
(1) Simplification of the structure and manufacturing cost
Can be easily reduced, and the body frame
Drive using the space between (3) and the reinforcing pipe (71).
Since the power transmission shafts (57) and (58) are arranged,
The height of the ground (3) can be reduced easily.
And driven by protection of the lower surface of the reinforcing pipe (71)
The transmission shafts (57) and (58) come into contact with the ridge or the straw grass
And the like can be easily eliminated .

[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 a vehicle body cover.

[Explanation of symbols]

(1) Traveling vehicle (2) Engine (3) Body frame (6) Front wheel (8) Rear wheel (13) Driver's seat (14) Steering handle (15) Planting part (27) Link mechanism (28) Lift cylinder (57) Input shaft (drive transmission shaft) (58) Second drive transmission shaft (drive transmission shaft) (71) Reinforcement pipe (72) Rear frame (mounting member) (75) Cylinder frame (mounting member) (87) Rear portion Support frame

Claims (1)

(57) [Claims] An engine (2) and an engine (2) are mounted on a traveling vehicle (1) having front and rear wheels (6) and (8), with a planting portion (15) mounted on the rear side of the traveling vehicle (1) so as to be movable up and down. Driver's seat (13)
And a mounting member (72) on a rear upper surface of a pair of left and right body frames (3) extending in the front-rear direction of the traveling vehicle (1) in the riding type rice transplanter provided with the steering handle (14).
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) behind the driver's seat (13). ligated planting unit (15) via the left and right width direction of the vehicle (1)
A long supporting frame (87) is attached to the mounting member (72).
(75) attached to the upper Rutotomoni, the mounting member (72)
(75) A pair of left and right reinforcing pipes (71) are connected to the lower rear portions of the left and right vehicle body frames (3) substantially in parallel in a side view, so that the left and right vehicle body frames (3) and the left and right reinforcing pipes (7) are connected.
1) A riding type rice transplanter wherein the drive transmission shafts (57) and (58) are arranged between them.