JP2000069811A - Sulky rice transplanter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a sulky rice transplanter capable of supporting a fertilizer application machine with good stability, readily reducing an operating force of an operator for lifting the fertilizer application machine and easily improving the operating efficiency such as cleaning or takeout of a residual fertilizer by installing the fertilizer application machine through specific lifting members to a mobile car. SOLUTION: This sulky rice transplanter is obtained by attaching a fertilizer application machine 36 through a pair of left and right lifting members 57 to a mobile car in the sulky rice transplanter equipped with rear wheels installed through a rear axle case 7 to the rear of the mobile car. At this time, the lifting members 57 are preferably connected to the nearly centroidal positions of the fertilizer application machine 36. Thereby, the lifting force of the lifting members 57 is capable of readily preventing the fertilizer application machine 36 from tilting to the front and rear or left and right and the fertilizer application machine 36 can smoothly be subjected to lifting and lowering operations. Furthermore, the simplification, reduction in weight and compaction of a structure for lifting, lowering and guiding the fertilizer application machine 36 can easily be performed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

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

[0002]

2. Description of the Related Art Conventionally, Japanese Utility Model Laid-Open No. 3-18714, Japanese Utility Model Laid-Open No. 57-111920, and Japanese Utility Model Laid-Open No.
As disclosed in JP-A-160614, there has been a technique of mounting a planting portion on a traveling vehicle so as to be able to move up and down via a link mechanism.

[0003]

According to the prior art, in a structure in which a fertilizer is provided above a body cover of a traveling vehicle, it is necessary to penetrate a frame for mounting the fertilizer into the body cover or to improve the strength of the body cover itself. In addition, it is not easy to simplify the fertilizer support structure, and the structure in which the fertilizer is mounted inside the body cover cannot easily increase the size of the fertilizer or increase the size of the traveling vehicle structure. And so on. In addition, with the structure in which the fertilizer is fixed at a predetermined position on the traveling vehicle, it is necessary to perform disassembly work to remove the fertilizer when performing maintenance and repair of the fertilizer and its surroundings, which can easily improve handling operability. There was no problem.

[0004]

SUMMARY OF THE INVENTION The present invention is directed to a riding rice transplanter having a rear wheel mounted on a rear portion of a traveling vehicle through a rear axle case. The fertilizer applicator can be stably supported above the rear wheel, and the fertilizer applicator can be supported by the elevating member, so that the operator's lifting operation force of the fertilizer applicator can be easily reduced and the fertilizer applicator can be lifted. It is possible to easily improve the workability such as cleaning or removing residual fertilizer.

[0005] Further, the lifting member is connected to the position of substantially the center of gravity of the fertilizer, so that the lifting force of the lifting member can easily prevent the fertilizer from tilting back and forth or left and right, so that the fertilizer can be raised and lowered smoothly. In addition to being able to operate, the lifting and lowering guide structure of the fertilizer applicator can be easily simplified and lightweight and compact.

[0006]

Embodiments of the present invention will be described below in detail with reference to the drawings. 1 is a side view of a rear axle case portion, FIG. 2 is a side view of a riding rice transplanter, and FIG. 3 is a plan view of the same. In FIG. 1, (1) is a traveling vehicle on which an operator rides, and an engine (2) is shown. Mounted on the upper front of the body frame (3)
A front paddle traveling wheel (6) is supported in front of a gear transmission case (4) via a front axle case (5), and a rear axle case (7) is connected to a rear portion of the gear transmission case (4). The rear axle case (7) supports the 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 the like, and a driver's seat (13) is attached above the vehicle body cover (12). A steering handle (14) is provided in front of the driver's seat (13) and at the rear of the hood (9).
Is provided.

[0007] In the figure, reference numeral (15) denotes a planting portion provided with a seedling mounting 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 the 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).

[0010] 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 lift frame (40) at the rear end of the vehicle body frame (3) and is mounted horizontally. 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 lift 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) ... is erected on both sides of the base frame (53) in an H-shape in plan view so as to extend substantially horizontally, and one set of front and rear two pairs of left and right elevating rails (5) are provided.
6) Fertilizer applicator (36) via (56) (56) (56)
And the fertilizer applicator (36) is mounted so as to be able to move up and down freely by means of a portal frame structure comprising a pair of left and right gas springs (57) (57), which are elastic rising members, and a fertilizer main body frame (51). Body frame (3)
The weight of the fertilizer applicator (36) is supported by a rear axle case (7) arranged at the rear end, and as shown in FIG. 8, bearing plates (58) (58) opposed to the left and right elevating rails (56) (56). ) Is welded and fixed to the fertilizer application main frame (51), and bearing rollers (59)... Which are rotatably fitted to the rails (56) are rotatably supported on bearing plates (58). Two sets of rails (56) and (56) are provided symmetrically, two upper and lower rollers (59) and (59) are attached to one rail (56), and the fertilizer main body frame (51) is connected to four rails. (56) and eight rollers (59) are supported on the base frame (53) so as to be movable up and down.

The lower end of the gas spring (57) is connected to the bracket (55), and the bearing plate (5) is connected to the bracket (55).
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) and (61) gripped by an operator when lifting the fertilizer applicator (36) is used. 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. And a release lever (67) provided on the lock arm (63) extends below the handle (61),
The operator operates the release lever (67) while gripping the handle (61), and locks the lock arm (63) with the engagement holes (65) (6).
6).

A case bracket (68) is welded and fixed to the fertilizer application main frame (51), and the feeding 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.

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 feed case (47), and the feed 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.

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, as shown in FIG.
6) The upper end of the elevating rail (56) is bent forward to tilt and support the fertilizer applicator (36) at the ascending position in the direction of the front outlet (70) for allowing the fertilizer inside to flow to the chute (72). When the fertilizer applicator (36) is raised above the base frame (53) by the guidance of the elevating rail (56), the fertilizer applicator (36) tilts forward, and the front outlet (7).
The fertilizer inside the tank (46) and the feeding case (47) flows out of the fertilizer (36) through the chute (72) into the lower receiving container (131) via the chute (72), so that the fertilizer inside the fertilizer applicator (36) is reliably discharged. To prevent fertilizer from remaining inside, eliminating the problem of fertilizer clogging during the next day's work,
In addition to preventing the generation of rust or dirt due to the fertilizer having water absorbency, there is no problem that the extra fertilizer remaining inside the fertilizer (36) is fed out and discarded by the operation of the fertilizer (36). Pollution can be reduced.

[0031]

As is apparent from the above embodiments, the present invention relates to a riding rice transplanter in which a rear wheel (8) is mounted on a rear portion of a traveling vehicle (1) via a rear axle case (7). A fertilizer applicator (36) is attached to the traveling vehicle (1) via a lifting member (57) (57). The fertilizer applicator (36) can be stably supported above the rear wheel (8). The lifting member (57) supports the fertilizer applicator (36) to easily reduce the operator's lifting operation force of the fertilizer applicator (36). Workability such as cleaning performed by lifting the fertilizer applicator (36) or removal of residual fertilizer is performed. The improvement can be easily performed.

A lifting member (57) is connected to the position of the center of gravity of the fertilizer applicator (36).
The tilting force of the fertilizer (36) can be easily prevented from tilting back and forth or left and right by the lifting force of (7), and the fertilizer (36) can be smoothly moved up and down, and the fertilizer (36) can be operated.
In this case, the lifting guide structure can be simplified and the weight and size can be easily reduced.

[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 an elevational view of the fertilizer applicator.

[Explanation of symbols]

 (1) Traveling vehicle (7) Rear axle case (8) Rear wheel (36) Fertilizer applicator (51) Fertilizer main body frame (57) Gas spring (elevating member)

Claims (2)

[Claims] 1. A riding rice transplanter having a rear wheel mounted on a rear portion of a traveling vehicle via a rear axle case, wherein a fertilizer applicator is attached to the traveling vehicle via a pair of right and left ascending members. Machine. 2. The riding rice transplanter according to claim 1, wherein an ascending member is connected to a position of substantially the center of gravity of the fertilizer applicator.