JP3091981B2 - 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 walking type rice transplanter in which a worker performs a steering operation or the like while following a rear side of the machine and continuously performs a rice transplanting operation.

[0002]

2. Description of the Related Art Conventionally, Japanese Unexamined Utility Model Publication No. 1-167819 has been disclosed.
As shown, connect the planting clutch to the shift lever and move
There is a technique for disengaging the planting clutch by operation.

[0003]

SUMMARY OF THE INVENTION The above prior art is related to the planting method.
The planting clutch is turned on and off by the lever that raises and lowers the part
The gearshift lever has a simple
There is a problem that each lever cannot be easily connected with the structure.
Therefore, the planting clutch is connected to the reverse transmission mechanism by the link mechanism.
The planting clutch is disengaged during reverse travel
The structure around the mission case cannot be easily configured.
There is a construction problem. In particular, engine and mission Shonke
The seedling table and the steering handle.
The walk-behind rice transplanter installed on the rear side of the machine
Provide a planting clutch lever near the grip and release it from the lever.
The traveling speed change lever is provided at the
Simplification of the disengaged clutch disengagement structure
The traveling speed change lever cannot be easily
Installation position or operation direction, etc.
Check that the clutch lever installation member and mounting space are
That the walking operation is troublesome
Shifting and planting clutch operation of walking rice transplanter structure
System manufacturing costs and handling operability.
There is a problem that it cannot be easily achieved.

[0004]

Means for Solving the Problems] However, the present invention provides ene
A gin and a mission case are provided in front of the machine,
And steering handlebars on the rear of the machine,
Connect the bar to the planting clutch lever and
In a walking rice transplanter that stops the planting claws
Connect one end of the back interlocking wire to the latch lever,
Fix the wire fitting to the other end of the back interlocking wire and run
Move the shift lever pin into the long hole of the
Connects the back interlocking wire to the travel shift lever during operation
And change the traveling speed at the neutral or forward operation position of the traveling speed change lever.
The speed lever and the planting clutch lever can be operated independently of each other.
Back interlocking wire with wire fittings
The drive lever and the plant are separated by simply adding pins.
The clutch lever is connected, and the reverse operation is
Since each lever is operated independently except for the work, run to the machine side
Simplification of shift operation system with shift lever and manufacturing cost
Reduction can be performed easily, and near the steering handle grip
The planting clutch lever is installed in
Simplification of the interlocking structure to stop and easy reduction of manufacturing cost
It is possible to take the running shift lever or
The attachment position or operation direction is restricted or walking
Troublesome trouble can be easily eliminated, and
Improvements and simplification of functions and improvement of handling
It can be easily achieved.

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a right side explanatory view of a main part, FIG. 2 is an overall side view of a walking rice transplanter for two-row planting, FIG. 3 is a plan view of the same, FIG. ) Is the engine,
(2) is a transmission case, (3) is a planting case connected to the rear of the transmission case (2) via a transmission pipe (4), and (5) is a handle frame (6) to the planting case (3). (7) Steering handle connected continuously via (7)
(7) is a pair of left and right paddy traveling wheels supported on the right and left sides of the transmission case (2) via left and right swing cases (8) and (8), and (9) is located above the handle frame (6). A front, low, and high two-row planting seedling mounting table which is reciprocally slidable left and right via guide rails (10) and (11), and (12) is a planting arm (1) in the planting case (3).
3) A seedling mounting claw that is attached via 3) to take out one seedling from the seedling mounting stand (9) and plant it in the field, (14) a fertilizer tank (14a), a fertilizer feeding case (15), and a ditch. Tableware (16)
A side-strip fertilizer applying fertilizer along the inside of a seedling planting position of the planting claw (12), and (17) the engine stand (18) of the engine (1) and the handle frame (6). A single planting leveling float supported on the lower side via a front link (19) and a planting depth adjustment lever (20), (21) is the engine (1) and engine fuel tank (22) Bonnet covering the upper side, such as ()
3) a bumper fixed to the front end of the engine stand (18), (24) a traveling speed change lever, (25) a recoil lever, (26) a left and right side clutch lever, (27)
Is a planting clutch lever, (28) is a hydraulic lifting lever,
(29) is a main clutch lever, and (30) is a seedling collection amount adjusting lever. As shown by an imaginary line in FIG. 2, the handle (5) is folded around a connecting shaft (31) at the rear end of the handle frame (6). They are freely connected.

Further, as shown in FIGS. 4 and 5, a seedling PTO shaft (32), which is rotated counterclockwise in a front view, is inserted into the transmission pipe (4), and the seedling is rotated clockwise in a front view. A platform horizontal feed shaft (33) extends in the front-rear direction substantially parallel to the PTO shaft (32), and a pair of left and right pipe frames (34) (34) is mounted on the transmission case (2).
And a handle case (6), and a seedling table horizontal feed chain case (35) shown in FIG. 3 is attached to the upper side of the pipe frame (34) via a receiving frame (36). 2) and cradle frame (3
6) A traveling speed change shaft (37) is erected between the speed change shafts (3).
7) The traveling speed change lever (24) is erected and fixed at the rear end via a lever bracket (38), and the speed change shaft (37) is rotated by swinging the lever (24) in the left-right direction, so that the forward 2
Speed, forward 1 speed, neutral, reverse
One end of the back interlocking wire (40) is stretched through an outer receiver (39) fixed to the cradle frame (36), and the planting control link (41) is connected to the end of the wire (40). The link (41) is connected to the shift lever (24) via a pin (42) and a long hole (43), and the link (41) is switched only when the shift lever (24) is switched from the neutral position to the reverse position. ) To pull the wire (40).

Further, as shown in FIGS. 1, 6 and 7, a finger-operated lever-type planting clutch lever (27) is provided inside the right grip (44) of the steering handle (5), and further inside. The lifting lever (28) is arranged close to the handle (5) via the handle cover (45), and the lever bracket (46) is fixed to the handle (5).
Planting clutch lever (27) via a fulcrum shaft (47)
The intermediate portion is rotatably connected, and a return spring (48) is connected between the lever (27) and the handle (5).
8), the lever (27) is configured to be lifted and supported at the planting clutch engagement position.

Further, a support shaft (4) is attached to the bracket (46).
9) is fixed, the operation arm (50) is rotatably supported on the support shaft (49), and a roller (51) for contacting the arm (50) is provided on the planting clutch lever (27). The arm (50) is rotated in conjunction with the swing of (27), the switching arm (52) is rotatably supported on the support shaft (49), and the stopper pin (53) and the spring (5) are rotated.
By connecting the arms (50) and (52) by 4), a planting clutch wire (56) stretched via an outer receiver (55) is connected to a switching arm (52) by a fulcrum link (57). Through the planting clutch lever (2
7) is pressed down against the spring (48), the roller (5)
The lever (27) and the operation arm (50) are connected via 1), and the operation arm (5) is connected via the stopper pin (53).
0) and the switching arm (52) are connected, and the lever (27) and the arms (50) and (52) are rotated counterclockwise in the right side view of FIG. By disengaging the planting clutch (not shown) in 2), by lifting the lever (27) in the disengaged position,
The lever (27) comes into contact with the operating arm (50), and each arm (50) (52) rotates clockwise via the spring (54), and the wire (56) is loosened to engage the planting clutch. It is configured as follows.

Further, the back interlocking wire (40) stretched through the outer receiver (55) is connected to the switching arm (5).
2), and when the planting clutch lever (27) is in the on position, the wire (4) is connected via the switching arm (52).
5), only the shifting operation of the traveling shift lever (24) is performed by the guide of the long hole (43) regardless of the planting control link (41) in the range of the second forward speed and the neutral range, as shown in FIG. At the same time, the wire (40) is pulled through the link (41) by the reverse operation of the shift lever (24), the switching arm (52) is rotated counterclockwise in FIG. 1, and the planting clutch wire (56) is pulled and planted. The disengaged clutch is disengaged, and the planting clutch lever (27) is lowered to the disengaged position. The traveling speed change lever (24) and the planting clutch lever (27) are connected by the back interlocking wire (40). When the lever (27) is in the on position and the planting clutch is in the engaged state, the planting clutch lever (27) is moved to the off position via the wire (40) by the reverse operation of the traveling speed change lever (24), and the planting is performed. Sincerely to planting claw clutch (12)
When the traveling speed change lever (24) is at the reverse position, the on-coming operation of the planting clutch lever (27) is prevented by the wire (40).

As is clear from the above, the engine (1)
And a transmission case (2) in front of the machine,
(9) and the steering handle (5)
, The traveling speed change lever (24) is planted with the clutch lever (2).
7) to stop the planting claw (12) by reverse operation.
In a walking type rice transplanter to stop,
One end of the back interlocking wire (40) is connected to (27).
And a wire fitting on the other end of the back interlocking wire (40).
Fixed the planting control link (41)
Connect the pin (42) of (24) to the length of the planting control link (41).
The traveling speed lever is engaged with the hole (43) during reverse operation.
-Connect the back interlocking wire (40) to (24) and run
The traveling speed is changed at the neutral or forward operation position of the line shift lever (24).
Speed lever (24) and planting clutch lever (27)
It can be operated independently. And planting regulation link
Back interlocking wire (40) having (41) and pin (4)
The traveling speed change lever (2) which is separated only by adding
4) and the planting clutch lever (27) are connected,
Each lever (24) other than reverse operation by the hole (43)
(27) is operated alone, and the traveling speed change lever (2
4) to simplify the speed change operation system and reduce the manufacturing cost
At the same time, place the planting clamp near the handle of the steering handle (5).
Provide a touch lever (27) and stop planting by reverse operation
Simplifies the interlocking structure and reduces manufacturing costs,
Line shifting lever (24) or planting clutch lever (2
7) The mounting position or operation direction is restricted or walking
Eliminates the trouble of rolling operation,
Improvement and simplification of functions and improvement of handling operability
You.

Further, as shown in FIGS. 7 and 8, an elevating wire (58) for elevating and lowering the rice transplanter is stretched through an outer support (55), and a fulcrum link (59) is connected to an elevating lever (28). The wire (58) is connected to the support shaft (49), the lifting lever (28) is rotatably supported on the support shaft (49), and the flat head pin (61) is inserted into the boss (60) of the lever (28) in the inserting direction. Linking arm (62) which is inserted so as to be switchable and is integrally fixed to the switching arm (52).
Is provided, and the fulcrum shaft (47) is loosely fitted into an arc hole (63) that forms a part of the circumference around the support shaft (49). And
As shown in FIG. 7, the head of the flat head pin (61) is connected to the link arm (6).
2), the pin (61) is supported outside the rotation range of the arm (62), and each lever (27) (2)
8) operates independently. Also, when the insertion direction of the pin (61) is reversed from that in FIG. 7 and the tip side of the pin (61) is opposed to the linking arm (62), the pin (61) is supported within the rotation range of the arm (62). Then, by the operation of pushing down the planting clutch lever (27) at the on position to the off position in FIG. 8, the operation arm (50) and the switching arm (52) are integrated with the link arm (62) in the clockwise direction (FIG. 8). ) Rotate the arm (6
2) abuts on the flat-head pin (61) and raises and lowers the lever (28).
Is moved from the lowered position to the raised position, and a hydraulic device (not shown) is operated in conjunction with the setting clutch disengagement operation of the lever (27) to raise the rice transplanter body. On the other hand, the lifting lever (2
8) The flat head pin (61) comes into contact with the linking arm (62) in the operation of lifting the lifting arm from the raising position to the lowering position, and rotates each arm (62) (52) (50) counterclockwise (FIG. 8). To move the planting clutch lever (27) in the off position to the on position, and in conjunction with the rice transplanting machine lowering operation of the raising / lowering lever (28), the planting clutch lever (27) is turned on and the planting claw (1) is turned on.
2) and the like are operated.

Further, as shown in FIGS. 2, 3, 6, and 9, a battery (64) for starting the engine (1) is provided.
And a start switch (65), and a fuel tank (22)
A battery (64) is disposed on the lower rear side of the steering wheel, and a start switch (6) is provided near the left grip (66) of the steering handle (5).
5), a starter (not shown) is operated by operating the switch (65) to start the engine (1), and a handle cover is provided inside the left grip (66) of the steering handle (5). A main clutch lever (29) is disposed via (45), and a main clutch wire for operating a main clutch (not shown) for intermitting a driving force input from the engine (1) to the transmission case (2). (6
7), the wire (67) is stretched through an outer receiver (68), and the end of the wire (67) is connected to the main clutch lever (29) via a fulcrum link (69). The main clutch is turned on and off by operating the lever (29).

An outer support (68) is integrally fixed to a cover bracket (70) of the handle (5) for supporting the handle cover (45), and a main clutch is connected to the outer support (68) via a fulcrum shaft (71). The lever (29) is mounted swingably, and the safety switch (73) is mounted on the switch bracket (72) integrally fixed to the outer receiver (68), and the switch (73) is pressed against the return spring (74). The operation plate (75) is provided on the bracket (72), and the switch (73) is kept off by the operation plate (75), and when the main clutch lever (29) is moved to the main clutch off position, the lever (29) Is brought into contact with the operation plate (75), the operation plate (75) is separated from the switch (73), and the switch (73) is turned on by the main clutch disengagement operation. Start switch the switch (73) (6
5) is electrically connected in series, and the engine (1) can be started by the start switch (65) only in the main clutch disengaged state where the safety switch (73) is turned on.

[0014]

As is apparent from the above embodiments, the present invention relates to an engine (1) and a transmission case (2),
Provided on the front side, the seedling table (9) and the steering handle (5)
Installed on the rear side of the machine and planted with the traveling speed change lever (24)
By connecting to the clutch lever (27) and moving backward
In a walking rice transplanter that stops the planting claws (12),
Connect the back link wire (4) to the planting clutch lever (27).
0) One end side is connected, and the back interlocking wire (40) and others
With the wire fitting (41) fixed to the end side,
The pin (42) of (24) is inserted into the long hole of the wire fitting (41).
(43) The traveling speed change lever is engaged in reverse operation.
Connect the back interlocking wire (40) to (24) and run
Shifting in neutral or forward operating position of shift lever (24)
Lever (24) and planting clutch lever (27)
It can be operated upright and has a wire fitting (41).
Additional back interlocking wire (40) and pin (42)
The running gear lever (24) and planting
Connect the latch lever (27) to the slot (43)
Therefore, each lever (24) (27) is used independently except for the reverse operation.
To operate it, set the traveling speed change lever (24) on the machine side.
Simplifies the speed change operation system and reduces manufacturing costs.
And the steering handle (5) near the grip
The planting clutch lever (27) is
Simplification of interlocking structure to stop planting and reduction of manufacturing cost
Can be easily performed, and the traveling speed change lever (24) or
Is the mounting position or operation of the planting clutch lever (27)
Fixed the problem that the direction is restricted and walking operation is troublesome
It can be easily removed, improving the function of the walking rice transplanting operation system.
Simplification and improvement of handling operability.
It can be.

[Brief description of the drawings]

FIG. 1 is a right side view of a planting clutch lever.

FIG. 2 is a side view of a two-row walking rice transplanter.

FIG. 3 is a plan view of the same.

FIG. 4 is an explanatory side view of the airframe section.

FIG. 5 is a front view of a traveling speed change lever.

FIG. 6 is a rear view of the steering handle.

FIG. 7 is a rear view of the planting clutch lever.

FIG. 8 is a left side view of the lifting lever.

FIG. 9 is a left side view of the main clutch lever.

[Description of Signs] (1) Engine (2) Transmission Case (5) Steering Handle (9) Seedling Stand (12) Planting Claw (24) Traveling Shift Lever (27) Planting Clutch Lever (40) Back Interlock wire (41) planting regulating link (wire bracket) (42) pin (43) elongated hole

──────────────────────────────────────────────────続 き Continuation of the front page (72) Inventor Kazuaki Itani 1-32 Chaya-cho, Kita-ku, Osaka City Inside Yanmar Agricultural Machinery Co., Ltd. (56) References JP-A-57-91106 (JP, A) Hei 1-167819 (JP, U) Actually open 1988-63322 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) A01C 11/02

Claims (1)

(57) [Claims] An engine (1) and a transmission case
(2) is installed in front of the machine, and the seedling table (9) and the steering hand
(5) is provided on the rear side of the machine,
After connecting (24) to the planting clutch lever (27)
Walking type rice field that stops the planting claws (12) by advancing operation
In the planter, the back clutch is connected to the planting clutch lever (27).
One end of the moving wire (40) is connected,
The wire fitting (41) is fixed to the other end of the
Connect the pin (42) of the line shift lever (24) to the wire fitting (4).
1) Driving in reverse operation by engaging the long hole (43)
Connect the back link wire (40) to the shift lever (24)
And the traveling shift lever (24) is in a neutral or forward operating position.
With the transmission shift lever (24) and the planting clutch lever (2
7. A rice transplanter characterized in that 7) can be operated independently of each other .