JP2000032817A - Rice transplanter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To simplify the lifting and lowering operation of a fertilizing machine and to improve workability of removal of residual fertilizer in a tank, etc. SOLUTION: In this rice transplanter in which a transplanting part 15 is liftably attached through a link mechanism 27 to the rear of a traveling vehicle 1, a fertilizing machine 36 to be equipped with tanks 46 charged with a fertilizer and feed cases 47 for supplying the fertilizer is loaded on the rear part of the traveling vehicle 1 and the fertilizer is sent to a transplanting part 15 by a sending pipe 49 extended to the rear of the fertilizing machine 36, the rice transplanter is provided with a handle 61 for lifting and operating the tanks 46 and the feed cases 41 liftably supported on the traveling vehicle 1 and with a disengaging lever 67 for releasing the fixation and the support of the tanks 46 and the feed cases 47 on the traveling vehicle 1. The handle 61 and the disengaging lever 67 are protrusively installed at the driver's seat 13 side of the traveling vehicle 1.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rice transplanter having, for example, a seedling mounting table and planting claws for continuously performing seedling planting operations.

[0002]

Conventionally, Japanese Unexamined Patent Publication No. 5-27 is disclosed.
As shown in Japanese Patent No. 6818, a planting part is mounted on a rear side of a traveling vehicle via a link mechanism so as to be able to move up and down, and a fertilizer applicator provided with a tank for storing fertilizer and a feeding case for feeding out the fertilizer is provided at the rear of the traveling vehicle. There is a side-line fertilization technique in which a fertilizer is carried out to a planting part by a delivery pipe mounted and extended to a rear side of a feeding case. However, according to the prior art, when the rice transplanting operation is completed and the remaining fertilizer is taken out of the tank, there is no space for taking out or maintaining the fertilizer in the center side tank located behind the driver's seat. It is necessary to move the fertilizer remaining in the tank to the left and right tanks and remove it from the left and right sides.It is also necessary to remove the tank and perform maintenance, making it easy to remove residual fertilizer or simplify maintenance and other operations. There is a problem that cannot be done. Therefore, as shown in Japanese Patent Application Laid-Open No. 4-84811, it is possible to take out the residual fertilizer in the tank by lowering the upper surface of the traveling vehicle, but the body structure of the traveling vehicle is limited,
There are problems such as the fertilizer adhering to the machine body and the fertilizer being easily wetted by the mud.

[0003]

SUMMARY OF THE INVENTION Accordingly, the present invention provides a plant in which a planting portion is mounted on a rear side of a traveling vehicle via a link mechanism so as to be movable up and down, a tank for storing fertilizer, and a feeding case for feeding the fertilizer. In a rice transplanter in which a fertilizer is provided at a rear part of a traveling vehicle and a fertilizer is carried out to a planting part by a delivery pipe extending to the rear side of the fertilizer, the tank and a feeding case which are supported by the traveling vehicle so as to be able to move up and down are lifted. A handle to be operated and a release lever for releasing the fixed support of the tank and the feeding case to the traveling vehicle are provided, and the handle and the release lever are protruded from the driver's seat side of the traveling vehicle. To lift the tank and the feeding case,
Fertilizing work can be performed by supporting the feeding case at a low position,
In addition, a work space for taking out residual fertilizer or performing maintenance can be easily secured by supporting the feeding case at a high position, and a worker grips a handle and a release lever on a top surface of a traveling vehicle opposite to the planting section to apply the fertilizer. Can lift and lower the handle on a stable scaffold around the driver's seat, and can easily carry out the work to remove the residual fertilizer. And the like can be easily improved.

[0004]

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 side view of a rear axle case, FIG. 2 is a side view of a riding rice transplanter, and FIG. 3 is a plan view of the same.
Reference numeral denotes a traveling vehicle on which an operator rides. The engine (2) is mounted above a front portion of a vehicle body frame (3), and a front paddle traveling front wheel (5) is provided in front of a gear transmission case (4) via a front axle case (5). 6), a rear axle case (7) is connected to the rear of the gear shift case (4), and the rear axle case (7) supports a paddy field traveling rear wheel (8). A spare seedling mount (10) is mounted on both sides of the hood (9) covering the engine (2) and the like, and the gear shift case (4) is mounted by a body cover (12) on which an operator rides through step (11). )
And a driver's seat (1) above the vehicle body cover (12).
3) is mounted, and a steering handle (14) is provided in front of the driver's seat (13) and behind the hood (9).

[0005] In the figure, reference numeral (15) denotes a planting section provided with a seedling table (16) for planting six rows and a plurality of planting claws (17). Forward tilting seedling platform (1
6) is supported on a planting case (20) via a lower rail (18) and a guide rail (19) so as to be reciprocally slidable right and left, and a rotary case (21) is rotated at a constant speed in one direction. A pair of claw cases (22) and (22) are supported at the case (20) and symmetrically positioned around the rotation axis of the case (21), and the claw case (22) is provided.
(22) Attach the planting claws (17) and (17) to the tip. A supporting frame (24) is provided on the front side of the planting case (20) via a rolling fulcrum shaft (23), and a three-point link mechanism (27) including a top link (25) and a lower link (26) is provided. Lifting cylinder (28) for connecting the support frame (24) to the rear side of the traveling vehicle (1) and raising and lowering the planting section (15) via the link mechanism (27)
To the lower link (26), and the front and rear wheels (6)
(8) is driven to move and at the same time, a seedling for one plant is planted from the seedling mounting table (16) which is reciprocally slid left and right.
7), the seedlings are continuously planted.

In the figure, (29) is a main shift lever, (3)
0) is a sub-shift lever for planting elevating and working travel shifting, and (3)
1) is a planting sensitivity adjusting lever, (32) is a main clutch pedal, (33) and (33) are left and right brake pedals, (3)
4) is a center float for two-row equalization, (35) is a side float for two-row equalization, and (36) is a side-row fertilizer for six rows.

Further, as shown in FIGS. 4, 5 and 6, an engine (2) is mounted on a front portion of a pair of left and right rectangular cylindrical body frames (3) (3), and a front axle (37) ( A front axle case (5) for supporting the left and right front wheels (6) and (6) via the 37) is mounted on the lower surface of the body frame (3) (3) behind the engine (2). A continuously variable belt transmission case (38) is provided between the left and right body frames (3) (3), and the continuously variable transmission case (3) is provided.
8) A gear transmission case (4) is provided between the rear left and right body frames (3) (3), and the rear axles (39) (39)
Rear axle cases (7) for supporting the left and right rear wheels (8) and (8) through the rear are fixed to the lower surfaces of the rear ends of the left and right body frames (3) and (3), and the output of the engine (2) is changed to the speed change cases (3).
8) The driving force is transmitted to each axle case (5) (7) via (4) to drive the front and rear wheels (6) (8).

Further, a lift frame (4
0) Both ends of the left and right body frames (3) and (3) are fixed to the upper surface of the rear end by welding, and a brake pedal receiving shaft (41) in the middle of the body frame (3) and a lift frame ( 40) Between the middle, sub-frames (42) and (42) for inclining to front low and rear high are erected,
Lift cylinder (2) between subframes (42) and (42)
8), and a link mechanism (27) formed by a top link (25) and a lower link (26) is attached via each frame (3), (40), (42), and the link mechanism is moved by a lifting cylinder (28). The planting section (15) is moved up and down by swinging (27).

Further, the vehicle body cover (12) is formed so as to be separable into three parts by a front step (43), a rear step (44) and a rear cover (45).
5) The fertilizer applicator (36) is mounted on the part by removing it, and a tank (46) for storing fertilizer, a feeding case (47) for supplying a fixed amount of fertilizer, and side strips of the floats (34) and (35). A blower turbo fan (50) for discharging fertilizer to a fertilizer chute (48) through a flexible type delivery pipe (49), and a cylindrical fertilizer main body frame (51),
The fertilizer (36) is provided with a lid (5
The right opening of the fertilizer main frame (51) is closed by 2), and a turbo fan (50) is attached to the left end of the fertilizer main frame (51), and six sets of six feeder cases (47) are provided.
... and the delivery pipe (49) ... fertilizer main body frame (51)
It is arranged in.

Further, as shown in FIGS. 1, 6, 7, and 8, a base frame (53) is mounted on the link frame (40) at the rear end of the body frame (3), and is mounted horizontally in the left-right direction. The fertilizer (36) is provided via the base frame (53) to be operated, and the fertilizer (36) is provided via a pair of left and right side stays (54) (54) and a rear view portal type frame structure of the base frame (53). 36), and a base frame (53) on the upper surface of the rear end of the left and right sub-frames (42) (42) on the upper side of the link frame (40).
Fix the middle lower surface with bolts and fix the base frame (5
3) Left and right side stays (54) and (54) are fixed to the left and right side ends by bolts, and the left and right body frames (3) and (3)
The lower ends of the left and right side stays (54) and (54) are fixed by bolts to the rear end brackets (55) and (55).

An elevating rail (56), which is a support member, is erected on both sides of a base frame (53) in a plan view of H-shape to be laid substantially horizontally. The fertilizer applicator (36) is attached via the rails (56), (56), (56), and (56) so as to be able to move up and down, and a pair of left and right gas springs (57) (5) serving as elastic rising members.
7) and the fertilizer applicator (36) is attached to the fertilizer main body frame (51) by a gate-shaped frame structure so as to be able to ascend and descend freely. To support,
As shown in FIG. 8, bearing plates (58) and (58) opposed to the left and right elevating rails (56) and (56) are welded and fixed to the fertilizer application main frame (51), and can be rolled on the rail (56). A bearing roller (59) to be fitted is rotatably supported by a bearing plate (58), and two rails (5
6) Two sets of (56) are provided symmetrically, and one rail (5
The upper and lower two rollers (59) and (59) are attached to 6), and the fertilizer main body frame (51) is attached to four rails (56).
And eight rollers (59).
3) is supported to be able to move up and down freely. As described above, the lifting rails (56) and (56), which are a pair of support members provided before and after the feeding case (47) of the fertilizer (36), are disposed symmetrically to the left and right. 36) The four sides surrounding the position of the center of gravity can be supported by four (four) lifting rails (56)..., And the forward and backward and left and right tilting of the fertilizer applicator (36) is regulated to easily obtain a smooth lifting operation. Can be done.

The lower end of the gas spring (57) is connected to the bracket (55), and the bearing plate (5
8) is connected to the upper end of the gas spring (57), the rail (56) and the gas spring (57) are provided substantially in parallel, and the gas spring (57) is positioned at the center of gravity of the fertilizer applicator (36) in the front-rear width direction. The fertilizer (3
The gas spring (57) is configured to have an extension force substantially equal to or slightly smaller than the weight of 6). Thus, in a riding rice transplanter in which the rear wheel (8) is mounted on the rear portion of the traveling vehicle (1) via the rear axle case (7), the gas springs (57) (57) as a pair of left and right elastic rising members. Fertilizer main body frame (51) of the fertilizer applicator (36) on the rear axle case (7) via
A gas spring (57), which is an elastic lifting member, is connected to a position of a center of gravity of a fertilizer applicator (36) which is mounted on a traveling vehicle (1) so as to be able to move up and down, and fertilizer is applied by using the rear axle case (7). Stabilizing the support of the fertilizer (36), reducing the lifting force of the fertilizer (36) by the operator by the support of the gas spring (57),
In addition to improving the workability such as cleaning or removing residual fertilizer by lifting the fertilizer applicator (36), it prevents the fertilizer (36) from tilting back and forth or left and right due to the rising force of the gas spring (57), The lifting and lowering operation of the fertilizer (36) is made smooth, and the lifting and lowering guide structure of the fertilizer applicator (36) is configured to be simple, lightweight and compact by means of the lifting and lowering rails (56). In addition, as shown in FIG.
The structure is almost the same as that of 7), and the auxiliary gas spring (6
0), and four gas springs (57) (5)
7) (60) The fertilizer applicator (36) may be lifted by (60).

Further, as shown in FIGS. 9, 10, 11, and 12, a pair of left and right handles (61) (61) gripped by an operator when lifting the fertilizer applicator (36) is moved to the fertilizer main body case ( 51), the lock (63) is rotatably supported by the handle (61) via the support shaft (62), and the handle (61) is vertically engaged with the reinforcing rib (64) of the lift rail (56). A mating hole (65) (66) is formed, and a lock arm (63) is engaged with each of the engaging holes (65) (66) to fix and support the fertilizer applicator (36) at a raised position or a lowered position. The release lever (67), which is a lock member provided on the lock arm (63), is extended below the handle (61), and the operator operates the release lever (67) while gripping the handle (61). , Lock arm (63) with engagement holes (65) (66) It is configured to be detached.

A case bracket (68) is fixedly welded to the fertilizer main body frame (51), and the feed-out case (47) is fixed to the case bracket (68) by bolts. The unreeling case (47) (47) is moved up and down the left and right rails (5
6) It is arranged between (56) and lift rails (56) (5).
6), two feeding cases (47) and (47) are provided on the outside of the machine, and three units of feeding cases (47)...

Further, FIG. 11, FIG. 12, FIG. 13, FIG.
4. As shown in FIG. 15, a lower outlet of the tank (46) is fitted into an inlet (69) on the upper front side of the feed case (47), and an outlet ( 70) to form a removable cap (71)
The outlet (70) is closed by the. The outside of the outlet (70) is surrounded by a chute (72) that is welded and fixed to the fertilizer main body frame (51), the cap (71) is removed, the outlet (70) is opened, and the fertilizer (A) inside the tank (46) is opened. ) To the chute (72).
At this time, the fertilizer applicator (36) is supported at the ascending position of the elevating rail (56), the distance between the chute (72) and the base frame (53) is increased, and the container for fertilizer is easily moved below the chute (72). To allow easy removal of residual fertilizer.

As is apparent from the above, the planting section (15) is mounted on the rear side of the traveling vehicle (1) via the link mechanism (27) so as to be able to move up and down, and the tank (4) for storing fertilizer.
6) and a fertilizer applicator (36) provided with a feeding case (47) for feeding fertilizer is mounted at the rear of the traveling vehicle (1), and the fertilizer applicator (3) is mounted.
6) In a rice transplanter that transports fertilizer to the planting section (15) by a delivery pipe (49) extending rearward, the tank (4) supported by the traveling vehicle (1) so as to be able to move up and down.
6) and the handle (6) for lifting the feeding case (47).
1) and a release lever (67) for releasing the fixed support of the tank (46) and the feeding case (47) to the traveling vehicle (1), and the handle is provided on the driver's seat (13) side of the traveling vehicle (1). (61) and the release lever (67) are protruded. Then, the operator holds the handle (61) and holds the tank (4).
6) and the feeding case (47) are lifted, and the feeding case (4) is lifted.
7) is supported at a low position to perform fertilizer application, and the feeding case (47) is supported at a high position to secure residual manure removal or maintenance work space, and traveling on the opposite side to the planting section (15). An operator grips the handle (61) and the release lever (67) on the upper surface of the car (1) to apply the fertilizer (3).
6) Lifting operation, lifting the handle (61) or carrying out residual fertilizer on a stable scaffold around the driver's seat (13), simplifying the lifting operation of the fertilizer (36) and the tank (46) To improve workability such as removal of residual fertilizer or maintenance.

A bottom cover (75) is provided on the lower surface of the feeding case (47) via a closing lever (73) and a spring (74).
And an outlet pipe (76) is integrally formed on the lower surface of the bottom cover (75) made of a hard synthetic resin, and is made of a soft synthetic resin having a front end fitted to a fertilizer main body case (51). And the front end of the outlet pipe (76) is detachably fitted to the rear end of the pipe (77), and the delivery pipe (49) is fitted to the rear end of the outlet pipe (76). The air is blown from the turbo fan (50) to the pipes (77), (76), and (49) from the hollow portion of the fertilizer main body frame (51), and the outlet pipe (78) from the outlet (78) of the bottom cover (75). 76) The fertilizer (A) which falls in the middle is moved to the delivery pipe (49). A wind speed accelerating part (79) is formed by reducing the inner diameter on the inlet side of the outlet pipe (76), and the fertilizer (A) suction force and the conveying force by the air blow at the outlet (78) are increased. I have.

Further, an inlet (80) and an outlet (81).
, An outlet plate (84) having a plurality of substantially square outlets (83)... On the same circumference, and an outlet plate (86) having an outlet (85). The plates (82), (84) and (86) made of a circular flat plate are arranged in a multilayer shape between the feeding case (47) and the bottom cover (75), and the feeding shaft (87) is attached to the feeding case (47). Are rotatably supported substantially vertically, and the lower end of the feed shaft (87) is passed through the center of each of the plates (82), (84), (86), and the feed shaft (8)
7) A rubber ring (88) is detachably engaged with the lower end, and the respective plates (82), (84), (86) are supported on the extension shaft (87) so as to be able to be pulled out downward, and each of the plates (82), (84), (86) is spring-arranged. The plates (82), (84), and (86) are resiliently pressed. The inlet plate (82) and the outlet plate (86) are locked to the feeding case (47), and the plates (82), (86) are fed. The shaft (87) is idled, and the feeding plate (84) is supported by the feeding shaft (87).
Is forcibly rotated, and the inlet (80) and the outlet (8
3) The fertilizer (A) that has entered is moved to the discharge port (85) and dropped in the direction of the outlet (78).

A brush (8) for removing excess fertilizer (A) on the upper surface of the feeding port (83) at the end of the inlet (80).
9), the brush (89) is attached to the feeding case (47) so as to be adjustable in height via the height adjusting shooting (90), and the height of the lower end of the brush (89) with respect to the upper surface of the feeding plate (84). The adjustment is performed from the outside of the feeding case (47), and the amount of fertilizer (A) delivered to the feeding port (83) is adjusted.

The outlet (8) of the inlet plate (82)
The compressed air intake (91) facing 1) is extended to the feed case (4).
7), the hollow part of the fertilizer main body case (51) and the compressed air inlet (91) are communicated with each other by a diverting pipe (92), and a turbo is provided through the pipe (92) and the inlet (91). Ventilation from fan (50) and outlet (81)
To the discharge port (8)
The fertilizer (A) of the outlet (83) is forcibly dropped downward by the air blow from the outlet (81) to the fertilizer (A) or the powdered fertilizer (A). It is configured to prevent it from remaining inside.

Further, as shown in FIGS. 4, 5 and 16,
A PTO shaft (93) for transmitting the output of the engine (2) to the planting section (15) extends rearward from the gear transmission case (4), and a bearing cylinder (94) is provided on the left side of the lift frame (40). After welding and fixing, the front end of the fertilizer input shaft (95) of the bearing cylinder (94) is interlocked to the middle of the PTO shaft (93) via a chain (96). A crank plate (97) is fixed to the rear end of the fertilizer input shaft (95). The bearing plate (58) and the case bracket (68)
A rear frame (98) for integrally fixing each rear end of the rear frame (98). The rear frame (98) is laid horizontally substantially in parallel with the fertilizer application main frame (51), and a bracket (99) is attached to the rear frame (98). ) Through the bearing (10
0) is fixed, and the feed amount adjusting lever (102) is rotatably supported on the bearing (100) via the fulcrum shaft (101). Then, the coupling lever (103) and the engagement plate (10
4) Input and output rods (106) and (107) that are detachably connected via (105), and the crank plate (97) and one end of a feed amount adjusting lever (102) are connected to the rod (106). The connection is made by (107).

Further, a feed drive shaft (109) is rotatably supported on the rear frame (98) via a bearing plate (108), and a swing arm (110) is attached to the drive shaft (109).
Is fixed, one end of an extendable rod (111) whose length can be adjusted is connected to the feeding amount adjusting lever (102), and the swing arm (110) is supported via a plurality of shaft holes (112). The telescopic rod (111) so that the distance between them can be adjusted.
Of the output rod (107) and the telescopic rod with respect to the fulcrum shaft (101) and changing the ratio of the respective connection distances by rotating the screw (113). The swing arm (11) is provided on the lever (102) and connects the telescopic rod (111) by selecting the plurality of shaft holes (112).
0) is changed to change the swinging stroke of the arm (110) to perform multi-stage adjustment of the amount of fertilizer to be fed, and to operate the fulcrum shaft (10) by operating the rotary lever (114).
1) Turn the feeding amount adjusting lever (102) with the screw (11).
3) Slide in the axial direction to connect the lever (102) and the rod (107) with respect to the fulcrum shaft (101);
The ratio of the length of the connection point of the lever (102) and the rod (111) with respect to the fulcrum shaft (101) is changed, and the reciprocating stroke of the telescopic rod (111) is changed in a stepless manner, so that the stepless adjustment of the fertilizer feeding amount is performed. It is configured to do so.

Further, as shown in FIG. 14, a bearing (115) is bolted and fixed to the rear frame (98).
A clutch shaft (116) is supported by the bearing (115) via a one-way clutch (115a) for preventing the rotation, and an input link (118) is connected to the clutch shaft (116) via a one-way clutch (117). At the same time, the swinging link (119) is fixed to the feeding drive shaft (109), and the link (119) is connected to the input link (118) via a link bar (120).
To rotate the clutch shaft (116) intermittently in one direction, and the one-way clutch (117), in which the input link (118) returns, by the idling operation of the clutch shaft (11).
6) The reverse rotation of 6) is prevented by the braking action of the one-way clutch (115a) and the bearing (115).

Further, a clutch case (121) is fixed to the feeding case (47), and the feeding shaft (8) is fixed.
7) The input shaft (124) is always connected to the upper end via bevel gears (122) and (123).
24) is provided with a stop clutch (125) for connecting and disconnecting the clutch shaft (116).
25) is provided inside the clutch case (121), and a clutch lever (126) and a clutch arm (127) for disconnecting and operating the stitching clutch (125) are distributed to the front and rear of the clutch case (121). A wire (130) that is extended by an outer tray (129) of a rear frame (98) to a planting streak lever (128) provided on the upper rear surface of the seedling table (16) of the planting section (15). , The clutch arm (127) is connected. Then, the planting streak lever (12
8) When any of the planting claws (17)... For 6-row planting is stopped by operation, the stopping clutch (125) corresponding to the stopped planting claws (17) is disengaged to apply fertilizer. The operation is stopped and fertilization is performed only on the line where the seedlings are planted with the planting claws (17). For example, when planting four plants on the left and center, four feeding cases (47) on the left and center are used. ), And the operator operates the clutch lever (126) to operate the clutch (12).
By cutting 5), the 6 feeding cases (4
7) Any or all of... Can be arbitrarily selected to stop fertilization irrespective of seedling planting.

Further, as shown in FIGS. 17 and 18, two shafts (131) and (132) are fixed to one engagement plate (104) by welding, and the holes (13) of the other engagement plate (105) are fixed.
3) The shafts (131) and (132) are detachably engaged with (133), and are fixed to the holes (134) of one engaging plate (104) by welding to the other engaging plate (105). The coupling shaft (135) is freely penetrated through the coupling shaft (135), and the coupling lever (103) is rotatably supported on one of the engagement plates (104) via the shaft (131). A coupling lever (103) is detachably engaged with the penetrating end, and the lever (103) is engaged with an engagement shaft (135).
Is locked and held by a spring (136).
04) (105) is united and fixed in a separable manner. When the fertilizer applicator (36) is supported at the lower position of the lifting rail (56), the connecting lever (103) and each shaft (1) are supported.
31) The input and output rods (106) (107) are integrally connected via the engagement plates (104) (105) fixed by the (132) (135), and the fertilizer (3)
6) The driving force is transmitted to the side via the rods (106) and (107), and the lever (103) is released from the engagement shaft (135) by releasing the coupling lever (103). Engagement plates (104) (105)
The input and output rods (106) and (107) are separated from each other, and the operation of raising the fertilizer applicator (36) to the raised position can be performed by the guide of the lifting rail (56).
Therefore, after the operator operates the left and right release levers (67) and (67) with the hand holding the left and right handles (61) and (61),
By lifting the handles (61) and (61) upward, the fertilizer applicator (36) can be moved upward to the upper end side of the elevating rail (56) and supported at the elevated position.

As is clear from the above, the fertilizer applicator (36)
When attaching to the traveling vehicle (1), the rear cover (45) is removed, and the center of the H-shaped base frame (53) in plan view is bolted and fixed to the upper surface of the rear end of the sub-frame (42). Left and right brackets on both sides (5
5) The left and right side stays (54) and (54) are bolted and fixed between (55), and the link frame (40) is provided at the rear end of the body frame (3) substantially directly above the rear axle case (7) and the rear axle (39). To fix the base frame (53). A bearing roller (59) is fitted into an elevating rail (56) on the base frame (53) from an upper end opening, and the fertilizer main body frame (51) is inserted through each rail (56) and the roller (59). ) Is supported on the base frame (53) so as to be able to move up and down, and a pair of left and right bearing plates (58) (5) of the fertilizer main body frame (51).
The left and right gas springs (57) and (57) are bolted and fixed between 8) and the lower left and right brackets (55) and (55), and the fertilizer applicator (36) is supported by the gas springs (57). Next, a delivery pipe (49) is connected between the side line fertilization chutes (48) of the floats (34) and (35) and the delivery case (47), and the delivery is performed by blowing air from a turbo fan (50). The fertilizer (A) in the tank (46) taken out of the case is sent out from the delivery pipe (49) to the side-row fertilizer chute (48), and the fertilizer (A) is placed adjacent to the seedlings to be planted by the planting claws (17). ) To embed side-strip fertilization is performed.

As described above, by mounting the fertilizer applicator (36) using the link frame (40), the base frame (53) can be made lightweight and compact, and the load of the fertilizer applicator (36) can be reduced by the body frame ( 3) By supporting at the rear end, the fertilizer applicator (36) can be stably supported on the rear axle (39). In addition, fertilizer main body frame (51)
By receiving the weight of the fertilizer (36) with the rear axle case (7) via the gas spring (57) and the rear axle case (7), the fertilizer (36) can be supported at a location where the traveling vehicle (1) is strong and stable. Vibration generated on the side of the traveling vehicle (1) can be absorbed by the gas spring (57), and the shock absorber effect of the gas spring (57) makes it easy to stabilize the amount of fertilizer to be fed out, and the main body of the fertilizer applicator (36). Can be improved in durability.

Further, by supporting the fertilizer applicator (36) at the lowered position of the lifting rail (56), the fertilizer applicator (36) can be supported at a lower position on the upper surface of the vehicle body cover (12) to perform fertilizer application. it can. On the other hand, lifting rail (56)
By supporting the fertilizer applicator (36) at the rising position of
A container for receiving the fertilizer (A) remaining in the tank (46) can be easily inserted below the chute (72), and the tank (4) can be inserted into the fertilizer main body frame (51).
6), the vertical width of the fertilizer applicator (36) can be made compact and the center of gravity can be easily reduced, and the bottom cover (75) can be removed downward by unlocking the closing lever (73), and the rubber ring ( 88) and remove the inlet plate (82), the feed plate (84) and the outlet plate (86) from the feed case (4).
7) Take out from below, each plate (82) (84) (86)
Can be cleaned.

Further, by the unlocking operation of the coupling lever (103), the engagement plates (104) and (105) are separated and the input rod (106) and the output rod (107) are separated, so that the traveling vehicle (1) The connection between the side and the fertilizer applicator (36) is released without using a tool, and the fertilizer applicator (36) can be raised by the guidance of the lifting rail (56). In addition, the swing arm (110) is connected to the telescopic rod (111) by the shaft holes (112), and the ratio of the distance between the connecting points of the rods (107) and (111) with respect to the fulcrum shaft (101) can be changed. By adjusting the feeding amount adjusting lever (102), the rotation speed of the feeding shaft (87) is changed in multiple stages or steplessly while the rotation speed of the fertilizer input shaft (95) is kept constant, and the feeding plate (84) is changed. ) Can be adjusted in multiple stages or steplessly. Moreover, the planting section (15)
The planting part (15) is operated by operating the lever (128).
By simply changing the number of planting strips, the planting claw (1
The feeding of the fertilizer of the feeding case (47) facing 7) can be automatically stopped via the clutch arm (127), thereby preventing waste of the fertilizer and reducing the feeding case (47) for six rows. The operator operates the clutch levers (126).
The feeding of the fertilizer (A) by the whole or a part of the feeding case (47) can be stopped by a manual operation.

Further, the planting portion (1) is provided on the rear side of the traveling vehicle (1).
5) and a riding rice transplanter provided with a fertilizer applicator (36) in front of the planting section (15) at the rear of the traveling vehicle (1). 56) (56) is erected, and the fertilizer main body frame (51) of the fertilizer applicator (36) is moved left and right ascending and descending rails (56).
(56), so that the coupling lever (10
3) Disconnecting the input rod (106) and the output rod (107) by operation and removing only one drive connecting part, a delivery pipe (49) formed of a flexible hose.
, The fertilizer applicator (36) can be raised. In addition, the fertilizer can be stably supported at a low position via the elevating rail (56) during the fertilization work performed simultaneously with the rice transplanting operation, and the fertilizer applicator (3) can be supported via the elevating rail (56).
6), the fertilizer applicator (3)
6) Cleaning the lower feeding case (47) and removing residual fertilizer from the lower part of the hopper (46) of the fertilizer applicator (36) from the driver's seat (13) of the traveling vehicle (1). It is easy to carry out, for example, eliminating the need for dangerous work in which a worker enters between the traveling vehicle (1) and the planting section (15) to lift the fertilizer applicator (36), and also requires a large container for holding residual fertilizer. The driver's seat (1) is located below the hopper (46) in the raised position.
The fertilizer can be easily taken in and out from 3), and the fertilizer can be easily collected without spilling from the container.

Furthermore, the body frame (3) left and right width of the traveling vehicle (1) and the base frame (5) of the fertilizer applicator (36).
3) The right and left widths are formed to be substantially the same size, and elevating rails (56) and (56) as left and right support members are erected on both sides of the base frame (53).
The elevating rail (56) is arranged within the left and right width of the machine to achieve a lightweight and compact configuration, and a fertilizer replenishment work space for the worker is secured around the fertilizer applicator (36), and the lateral direction of the body frame (3) Fertilizer using full width (3
6) can be safely supported, and the support structure of the fertilizer applicator (36) can be easily made compact.

Further, lifting rails (56) (56), which are left and right support members, are disposed on both sides of the feeding case (47) (47) for two rows of the fertilizer applicator (36).
By arranging two feeding cases (47) and (47) on the left and right sides of the left and right lifting rails (56) and (56), respectively, a six-row fertilizer (36) is configured. The feeding cases (47) and (47) can be used as one unit to easily mount the fertilizer applicator (36) for an even number of rows, and the width of the left and right handles (46) can be easily adjusted with both hands from the driver's seat (13). When the (61) and (61) are provided on the fertilizer main body frame (51), the left and right handles (61) and (61) are arranged close to the outside of the left and right elevating rails (56) and (56). In this manner, the handle (61) for the lifting operation that can be gripped by the operator can be disposed near the left and right lifting rails (56) (56) that are most advantageous in terms of handling and strength, and the lifting and lowering operability of the fertilizer applicator (36) can be provided. Can be easily improved.

Further, since a release lever (67) and a lock arm (63) are provided as lock members for fixing the fertilizer (36) to the lifting rails (56) as support members at the raised position and the lowered position, respectively. (36) is securely locked at the ascending or descending position to prevent a wrong operation of the fertilizer applicator (36) and handle it safely, and a handle (61) which is gripped by an operator when raising and lowering the fertilizer applicator (36). ), A release lever (67) is provided close to the handle (61), and the release lever (67) is operated with the hand holding the handle (61) to perform the unlock operation. Up and down movement by handle (61) and release lever (67)
The lock release operation can be performed in a series and is easy to use.
Since the handle (61) and the release lever (67) are separately formed, the lock can be obtained only by grasping the handle (61), as in the structure in which the locking operation of the lock arm (63) is released by the handle (61). Prevents malfunctions that are released and allows safe handling. Further, since the lock arm (63) is locked to the base of the lower end of the elevating rail (56) at the lowering position of the fertilizer applicator (36), the fertilizer applicator (36) has a large supporting strength in a normal lowering position supporting state such as during fertilizing work. Is fixed.

[0034]

As is apparent from the above embodiments, the present invention provides a planting part (15) at a rear side of a traveling vehicle (1) via a link mechanism (27) so as to be able to move up and down, and a fertilizer. A fertilizer (36) provided with a tank (46) for feeding the fertilizer and a feeding case (47) for feeding the fertilizer is mounted on the rear of the traveling vehicle (1), and a delivery pipe (49) extending rearward of the fertilizer (36). In the rice transplanter for carrying out fertilizer to the planting section (15), a handle (61) for raising and lowering the tank (46) and the feeding case (47) to be supported by the traveling vehicle (1) so as to be movable up and down, and traveling A release lever (67) for releasing the fixed support of the tank (46) and the feeding case (47) to the vehicle (1) is provided, and the handle (61) and the release are provided on the driver's seat (13) side of the traveling vehicle (1). Lever (67)
Since the operator grips the handle (61) and lifts the tank (46) and the feeding case (47),
The feeding case (47) can be supported at a low position to perform fertilizer application, and the feeding case (47) can be supported at a high position to easily secure a work space for taking out residual fertilizer or performing maintenance. The operator can raise and lower the fertilizer applicator (36) by gripping the handle (61) and the release lever (67) on the upper surface of the traveling vehicle (1) opposite to the attachment section (15), and stabilize the vicinity of the driver's seat (13). Toride (6
1) It is easy to pull up or carry out the residual fertilizer, and it is easy to improve the workability of the fertilizer (36) simplification of lifting and lowering operation and the removal of the residual fertilizer from the tank (46) or the maintenance. It can be planned.

[Brief description of the drawings]

FIG. 1 is a side view of a rear axle case section.

FIG. 2 is an overall side view.

FIG. 3 is a plan view of the same.

FIG. 4 is a side view of the traveling vehicle.

FIG. 5 is a plan view of the same.

FIG. 6 is a rear view of the fertilizer application unit.

FIG. 7 is a side view of a base frame portion.

FIG. 8 is a rear view of the same.

FIG. 9 is a plan view of the same.

FIG. 10 is an enlarged view of FIG. 8;

FIG. 11 is a side view of the fertilizer applicator.

FIG. 12 is a side view of a feeding case portion.

FIG. 13 is a rear view of the same.

FIG. 14 is an enlarged view of FIG. 12;

FIG. 15 is a plan view of a feeding case portion.

FIG. 16 is a side view of the fertilizer applicator drive unit.

FIG. 17 is a rear view of the drive input unit.

FIG. 18 is an exploded side view of the same part.

[Explanation of symbols]

 (1) Traveling vehicle (13) Driver's seat (15) Planting part (27) Link mechanism (36) Fertilizer applicator (46) Tank (47) Feeding case (49) Delivery pipe (61) Handle (67) Release lever

Claims (1)

[Claims] 1. A fertilizer applicator is provided at the rear of a traveling vehicle in which a planting section is mounted on a rear side of the traveling vehicle via a link mechanism so as to be movable up and down, and a fertilizer tank and a feeding case for feeding the fertilizer are provided. In a rice transplanter for carrying out fertilizer to a planting section by a delivery pipe extending rearward of a fertilizer applicator, a handle for raising and lowering the tank and a feeding case supported by the traveling vehicle so as to be able to move up and down, and the tank for the traveling vehicle And a release lever for releasing the fixed support of the feeding case, wherein the handle and the release lever are protrudingly provided on the driver's seat side of the traveling vehicle.