JPH07298740A - Fertilizing apparatus of rice transplanter - Google Patents

Abstract

PURPOSE:To improve durability a fertilizer hopper and a delivery case by firmly attaching the fertilizer hopper and the delivery case to a fertilizer applicator. CONSTITUTION:A fertilizer-feeding air pipe 51 for feeding fertilizer-feeding air is nearly horizontally extended and provided over whole width in lateral direction of a fertilizer applicator and a supporting frame 98 is extended and provided nearly parallel to the fertilizer-feeding air pipe 51 and the feed air pipe 51 is connected to a supporting frame 98 at a nearly equal interval by plural supporting members 68 and a fertilizer hopper 46 and the delivery case 47 are attached to the supporting member 68.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fertilizer application device for a riding rice transplanter, which is equipped with, for example, a seedling mount and a planting claw for continuously performing seedling planting work.

[0002]

2. Description of the Related Art Conventionally, as disclosed in Japanese Utility Model Laid-Open No. 3-18714, there is a structure in which a hopper and a feeding case of a fertilizer application device are supported in a cantilever manner on a support frame connected to the machine side.

[0003]

However, in the case of such a cantilever structure, there is a problem that the strength is poor and the support is unstable, and the hopper and the feeding case are vibrated and chattered. Not only that, but also in the case of a multi-strand structure having a plurality of sets of fertilizer hoppers and feeding cases, there is a problem that an appropriately interlocking structure connected in series cannot be obtained.

[0004]

SUMMARY OF THE INVENTION Therefore, according to the present invention, a fertilizer blower pipe for sending fertilizer blown air is extended substantially horizontally across the entire width of the fertilizer applicator in the left-right direction, and a support frame is extended substantially parallel to the fertilizer blower pipe. By installing the fertilizer hopper and the feeding frame on the support member by connecting the blower pipe and the support frame at substantially equal intervals by a plurality of support members, the fertilizer hopper and the support frame that are substantially parallel to each other are provided. By firmly supporting the fertilizer hopper and the feeding case in a double-supported state, it is possible to improve the strength and to mount the fertilizer hopper and the feeding case with good stability and without vibration or chattering.

Further, the feeding case at the lower part of the fertilizer hopper is detachably attached to the support member so that the fertilizer supply port of the fertilizer hopper is located above the attaching portion of the fertilizer hopper and the feeding case, and the fertilizer feeding work is performed. In addition to making it easy, a work space for taking out residual fertilizer can be easily secured, and the feeding case can be easily removed together with the fertilizer hopper to facilitate maintenance and inspection work of the fertilizer hopper and feeding case and their surroundings. It makes it possible.

Furthermore, the feeding adjustment fulcrum shaft of the feeding amount adjusting member in the fertilizer feeding case is supported by the bearing member fixed to the rear portion of the support frame, so that the feeding adjustment fulcrum shaft is provided on the rear side of the fertilizer hopper and the feeding case. Including a fertilizer feeding drive mechanism including the above, not only facilitating the assembling operation and adjusting operation of the fertilizer feeding amount, but also facilitating separation from the middle part of the driving mechanism and lifting of the fertilizer hopper and feeding case. Alternatively, it can be easily removed.

Furthermore, by fixing a blower fan for supplying fertilizer blown air to the fertilizer blower pipe to one end side of the blower pipe, the blower pipe can be easily inspected and cleaned while traveling on the road. Or when needed to store the aircraft,
The blower fan protruding outside the blower pipe is opened so that the blower fan is folded inward so that the entire width can be easily reduced.

[0008]

Embodiments of the present invention will now be described in detail with reference to the drawings. FIG. 1 is a side view of the fertilizer tank portion, FIG. 2 is a side view of the riding rice transplanter, and FIG. 3 is a plan view thereof. In the figure, (1) is a traveling vehicle on which an operator mounts an engine (2). The front frame (3) is mounted above the front part of the body frame (3), and the front wheel (6) for traveling the paddy field is supported in front of the gear shift case (4) through the front axle case (5), and the rear part of the gear shift case (4) is supported. The rear axle case (7) is connected to the rear axle case (7), and the rear axle case (7) supports the rear wheel (8) for traveling paddy fields. Then, the spare seedling mounts (10) are attached to both sides of the bonnet (9) covering the engine (2), etc., and the gear shift case (4) is attached by the vehicle body cover (12) on which an operator rides through the step (11). ) Etc., a driver's seat (13) is attached to the upper part of the vehicle body cover (12), and a steering handle (14) is provided in front of the driver's seat (13) at the rear of the bonnet (9).

Further, (15) in the figure is a planting section provided with a seedling table (16) for planting 6 rows and a plurality of planting claws (17), which are made of a synthetic resin having a high front and low front. Forward tilting seedling stand (1
6) is supported by the planting case (20) through the lower rail (18) and the guide rail (19) so as to be slidable left and right, and the rotary case (21) is rotated at a constant speed in one direction. The pair of claw cases (22) and (22) are supported at the case (20), and a pair of claw cases (22) and (22) are arranged symmetrically around the rotation axis of the case (21).
(22) Attach the planting claws (17) (17) to the tip. A support 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. Elevating cylinder (28) for connecting a supporting frame (24) to the rear side of the traveling vehicle (1) and moving up and down the planting part (15) through the link mechanism (27).
Is connected to the lower link (26), and the front and rear wheels (6) are connected.
(8) is driven to move, and at the same time, the seedlings for one plant are planted from the seedling table (16) that slides back and forth to the left and right.
It is taken out according to 7) and the seedlings are planted continuously.

Further, in the figure, (29) is a main transmission lever, (3
(0) is a sub-shift lever for planting up / down and work traveling gear shifting, (3
1) is a planting sensitivity adjusting lever, (32) is a main clutch pedal, (33) and (33) are left and right brake pedals, and (3)
4) is a center float for two-row leveling, (35) is a side float for two-row leveling, and (36) is a side-row fertilizer applicator for six rows.

Further, as shown in FIGS. 4, 5 and 6, the engine (2) is mounted on the front part of the pair of left and right square tubular body frames (3) (3), and the front axle (37) ( The front axle case (5) which pivotally supports the left and right front wheels (6) (6) via the (37) is attached to the lower surface of the vehicle body frame (3) (3) behind the engine (2), and the rear axle case (5) A continuously variable belt shift case (38) is provided between the left and right vehicle body frames (3) and (3), and the continuously variable shift case (3
8) A gear shift case (4) is provided between the left and right vehicle body frames (3) and (3), and rear axles (39) and (39) are provided.
A rear axle case (7) for pivotally supporting the left and right rear wheels (8) (8) is fixed to the lower surface of the rear end of the left and right vehicle body frames (3) and (3), and the output of the engine (2) is set to each shift case (3).
8) (4) is transmitted to each of the axle cases (5) and (7) as a traveling driving force to drive the front and rear wheels (6) and (8).

Further, a lift frame (4
0) Both ends of the left and right vehicle body frames (3) (3) are welded and fixed to the upper surface of the rear end of the vehicle body frame (3), and a lift pedal (41) is installed upright on the vehicle body frame (3) and the brake pedal receiving shaft (41). 40) Between the middle, the sub-frames (42) (42) that are inclined to the front low rear high are installed,
Between the sub-frames (42) (42), the lifting cylinder (2
8) is attached, and the link mechanism (27) formed by the top link (25) and the lower link (26) is attached via each frame (3) (40) (42), and the link mechanism is provided by the lifting cylinder (28). The planting part (15) is moved up and down by rocking (27).

Furthermore, the front cover (43), the rear step (44), and the rear cover (45) form the vehicle body cover (12) so as to be divided into three parts, and the rear cover (4)
5) to remove the fertilizer applicator (36) and install the fertilizer applicator (36) in the part.
Feeding case (47), float (3)
4) A blower turbo fan (50) for discharging fertilizer to the side-row fertilizer chute (48) of (35) through a flexible-type feed pipe (49), and a fertilizer main body frame (51) which is a cylindrical blower pipe. Is provided in the fertilizer application machine (36), and the right side opening of the fertilizer application frame (51) is closed by the lid (52) which can be opened and closed.
1) A turbo fan (50) is attached to the left end, and six sets of feeding cases (47) ... and delivery pipes (49) for six rows are arranged on a fertilizer main body frame (51).

Further, as shown in FIGS. 6, 7 and 8, the link frame (40) is provided at the rear end of the vehicle body frame (3).
A base frame (53) is attached to the upper side, and a fertilizer applicator (36) is provided via the base frame (53) which is horizontally laid horizontally, and a pair of left and right side stays (5) are provided.
4) The fertilizer applicator (36) is provided through the rear view portal frame structure of (54) and the base frame (53), and the rear ends of the left and right subframes (42) (42) above the link frame (40). Bolt the middle lower surface of the base frame (53) to the upper surface to fix the base frame (53)
The upper ends of the left and right side stays (54) (54) are fixed to the left and right ends by bolts, and the left and right side stays (5) are attached to the brackets (55) (55) at the rear ends of the left and right body frames (3) (3).
4) The lower end of (54) is fixed by bolts.

Further, elevating rails (56) are erected on both sides of the base frame (53) having an H shape in a plan view to be horizontally laid horizontally, and a pair of four elevating rails (5), one set in front and two in left and right.
6) (56) (56) (56) through the fertilizer applicator (36)
And the fertilizer applicator (36) is attached by a portal frame structure composed of 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)
Bearing plates (58) (58) for supporting the weight of the fertilizer applicator (36) by the rear axle case (7) arranged at the rear end and facing the left and right lifting rails (56) (56)
Are fixed to the fertilizer main body frame (51) by welding, and bearing rollers (59) ... which are rotatably fitted in the rails (56) are rotatably supported by a bearing plate (58). (56) Two sets of (56) are symmetrically provided, and two upper and lower rollers (59) and (59) are attached to one rail (56), and a fertilizer main body frame (51)
Are supported by a base frame (53) so as to be able to move up and down by four rails (56) and eight rollers (59).

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 parallel to each other, and the gas spring (57) is installed at the center of gravity of the fertilizer applicator (36) in the front-rear width direction. The fertilizer applicator (3
The gas spring (57) has an extension force which is approximately equal to or slightly smaller than the weight of 6). Thus, in the passenger rice transplanter in which the rear wheel (8) is mounted on the rear part of the traveling vehicle (1) via the rear axle case (7), gas springs (57) (57) which are a pair of left and right elastic rising members. Fertilizer body frame (51) of the fertilizer applicator (36) on the rear axle case (7) through the
A fertilizer applicator (36) is attached to the traveling vehicle (1) and is connected to a gas spring (57), which is an elastic rising member, at a substantially center of gravity of the fertilizer applicator (36). The rear axle case (7) is used to apply fertilizer. The support of the machine (36) is stabilized, and the support force of the gas spring (57) reduces the operator's lifting operation force of the fertilizer application machine (36).
The workability such as cleaning by lifting the fertilizer applicator (36) or removal of residual fertilizer is improved, and tilting of the fertilizer applicator (36) due to the rising force of the gas spring (57) is prevented, so that the fertilizer applicator (36) is prevented. The elevating operation of the fertilizer applicator (36) is made smooth, and the elevating guide structure of the fertilizer applicator (36) is constituted by the elevating rails (56) ... As shown in FIG. 7, the gas spring (5
The structure is almost the same as that of 7) and the auxiliary gas spring (6
0) is provided, and the left and right four gas springs (57) (5
7) The fertilizer applicator (36) may be lifted by (60) (60).

Further, as shown in FIGS. 9, 10, 11 and 12, a pair of left and right handles (61) (61) which an operator grips when lifting the fertilizer applicator (36) is attached to the fertilizer main body case ( 51) is welded and fixed, the lock arm (63) is rotatably supported by the handle (61) through the support shaft (62), and the lock rib (64) is vertically engaged with the reinforcing rib (64) of the elevating rail (56). Forming the holes (65) (66) and engaging the lock arm (63) in each of the engaging holes (65) (66) to fix and support the fertilizer applicator (36) in the raised position or the lowered position. , A release lever (67) provided on the lock arm (63) is extended below the handle (61),
The operator grasps the handle (61) and operates the release lever (67) to move the lock arm (63) into the engagement holes (65) (6).
It is configured so that it can be separated from 6).

A case bracket (68) is welded and fixed to the fertilizer main body frame (51), and the feeding case (47) is fixed to the case bracket (68) by a bolt (4).
7a) The fixing case (47) (47), which is fixed and fixed as one unit, is arranged between the left and right lifting rails (56) (56), and the lifting rail (5)
6) Two-row feeding case (47) outside the machine of (56)
(47) are respectively arranged, and three cases of feeding cases (47) are arranged side by side as one set of two articles.

Further, FIG. 11, FIG. 12, FIG. 13, and FIG.
As shown in FIG. 4 and FIG. 15, the lower outlet of the tank (46) is fitted to the inlet (69) on the front side of the upper surface of the feeding case (47), and the outlet () is attached to the lower side of the front surface of the feeding case (47). 70) forming and detachable cap (71)
The outlet (70) is closed by. A fertilizer (A) inside the tank (46) is surrounded by a chute (72) welded and fixed to the fertilizer body frame (51) to surround the outside of the outlet (70), the cap (71) is removed to open the outlet (70). ) To the chute (72),
At this time, the fertilizer applicator (36) is supported at the elevated position of the elevating rail (56), the space between the chute (72) and the base frame (53) is enlarged, and the fertilizer container is easily placed below the chute (72). The fertilizer can be plugged in and the residual fertilizer can be easily taken out.

A bottom cover (75) is provided on the lower surface of the feeding case (47) through a closing lever (73) and a spring (74).
Is detachably fixed, and the outlet pipe (76) is integrally formed on the lower surface of the bottom lid (75) made of hard synthetic resin, and is made of soft synthetic resin for fitting the front end portion to the fertilizer main body case (51). Of the joint pipe (77), 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 blower of the turbo fan (50) is blown out from the hollow part of the fertilizer main body frame (51) to the pipes (77) (76) (49), and the outlet pipe (78) of the bottom lid (75) is used. 76) The fertilizer (A) falling in the middle is moved to the delivery pipe (49). The inner diameter of the outlet pipe (76) on the inlet side is reduced to form a wind speed acceleration portion (79) so that the fertilizer (A) suction force and the conveying force by the air blow at the outlet (78) are increased. There is. Also, the closing lever (7
3) is rotatably attached to the pivot shaft (73a) of the feeding case (47), and the hook portion (73b) is engaged with the projecting shaft (75a) of the bottom lid (75) so that the feeding case (47) is bottomed. The lid (75) is fixed.

Further, the intake port (80) and the outlet port (81)
And an outlet plate (84) having a plurality of substantially square outlets (83) ... and an outlet plate (86) having a discharge port (85) on the same circumference. The plates (82), (84) and (86) made of circular flat plates are arranged in a multi-layer between the feeding case (47) and the bottom lid (75), and the feeding shaft (87) is attached to the feeding case (47). Is rotatably supported substantially vertically, and the lower end side of the payout shaft (87) is passed through the central portion of each plate (82), (84), (86), and the payout shaft (8
7) A rubber ring (88) is detachably locked to the lower end, each plate (82) (84) (86) is supported downward on the feeding shaft (87), and each plate (82) (84) (86) is supported by a spring (74). The plates (82), (84) and (86) are elastically pressed, and the inlet plate (82) and the outlet plate (86) are locked to the feeding case (47) and fed to each plate (82) (86). While letting the shaft (87) rotate freely, the feeding plate (84) is supported by the feeding shaft (87) so as to be supported by the feeding shaft (87).
Is forced to rotate, and from the intake port (80) to the delivery port (8
The fertilizer (A) that has entered 3) is moved to the discharge port (85) and dropped toward the outlet (78).

A brush (8) for removing the excess fertilizer (A) on the upper surface of the delivery port (83) at the end of the intake port (80).
9), and the height of the brush (89) is lower than the upper surface of the feeding plate (84) by attaching the brush (89) to the feeding case (47) through the photographing (90) whose height is adjusted. Adjustment is performed from the outside of the feeding case (47), and the amount of fertilizer (A) delivered to the feeding outlet (83) is adjusted.

The outlet (8) of the inlet plate (82)
1) The compressed air intake (91) facing the 1) is fed to the feeding case (4).
7), the hollow portion of the fertilizer main body case (51) and the compressed air inlet (91) are communicated with each other by a shunt pipe (92), and the turbo is provided through the pipe (92) and the inlet (91). Blow-off from fan (50) is blown out (81)
To the discharge port (85) and the feeding port (8
3) The air is blown from the air outlet (81), and the fertilizer (A) in the feeding port (83) is forcibly dropped downward by the air blowing, and the granular fertilizer (A) or this powder is fed into the feeding port (83). It is configured to prevent it from remaining inside.

Further, as shown in FIGS. 4, 5, 16 and 17, the PTO shaft (93) for transmitting the output of the engine (2) to the planting portion (15) is rearwardly arranged from the gear shift case (4). And the lift frame (40).
The bearing tube (94) is welded and fixed on the left side, and the bearing tube (94) is fixed.
The front end of the fertilizer input shaft (95) is interlocked with the middle of the PTO shaft (93) through the chain (96). A crank plate (97) is fixed to the rear end of the fertilizer input shaft (95). Further, a square pipe-shaped rear surface frame (98) for integrally fixing the rear end sides of the bearing plate (58) and the case bracket (68) is provided, and the rear surface frame (98) is arranged substantially parallel to the fertilizer main body frame (51). The bearing (100) is fixed to the rear frame (98) via the bracket (99) while being horizontally mounted, and the fulcrum shaft (10) is attached to the bearing (100).
The feed amount adjusting lever (102) is rotatably supported via 1). And, it is provided with input and output rods (106) and (107) which are detachably connected via a coupling lever (103) and engaging plates (104) and (105), and the crank plate (97) and the feed amount adjusting lever (102). ) Is connected to one end side of the rod by means of the rods (106) and (107).

Further, the feeding drive shaft (10) is provided on the rear frame (98) through a bearing plate (108) which is a bearing member.
9) rotatably supports the swing shaft (110) on the drive shaft (109), and connects one end side of the extendable rod (111) whose length is adjustable to the feeding amount adjusting lever (102). And the other end of the telescopic rod (111) is connected to the swing arm (110) through a plurality of shaft holes (112) so that the distance between the fulcrums can be adjusted, and the fulcrum shaft (101) can be adjusted. The ratio of the connecting distances of the output rod (107) and the telescopic rod (111) is determined by the screw (11
A rotation lever (114) that is changed by rotation of 3) is provided in the feed amount adjustment lever (102), and the telescopic rod (11) is selected by selecting the plurality of shaft holes (112).
(1) The length of the swing arm (110) connecting the two is changed, the swing stroke of the arm (110) is changed to perform multistage adjustment of the feed amount of fertilizer, and the fulcrum is operated by operating the rotary lever (114). The feed amount adjusting lever (102) is slid in the axial direction of the screw (113) with respect to the shaft (101), and the length of the connection point between the lever (102) and the rod (107) with respect to the fulcrum shaft (101) and the fulcrum The ratio of the length of the connecting point between the lever (102) and the rod (111) with respect to the shaft (101) is changed, and the reciprocating stroke of the telescopic rod (111) is continuously changed to continuously adjust the fertilizer feed amount. Is configured as follows.

Further, as shown in FIG. 14, the bearing (115) is bolted and fixed to the rear frame (98),
A clutch shaft (116) is rotatably supported by the bearing (115) through a follow-up prevention one-way clutch (115a), and an input link (118) is connected to the clutch shaft (116) through 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) through a link bar (120) to form an input link (118).
To rotate the clutch shaft (116) intermittently in one direction, and the one-way clutch (117) in which the input link (118) returns returns to the clutch shaft (11) by idling.
The reverse rotation of 6) is prevented by the braking action of the one-way rotation prevention one-way clutch (115a) and the bearing (115).

The clutch case (121) is fixed to the feeding case (47), and the feeding shaft (8) is attached.
7) The input shaft (124) is always connected to the upper end side via the bevel gears (122) (123).
A clutch (125) for connecting the clutch shaft (24) to the clutch shaft (116) in a disengageable manner is provided.
25) is internally provided in the clutch case (121), and a clutch lever (126) and a clutch arm (127) for connecting and disconnecting the ratchet clutch (125) are distributed to the front and rear of the clutch case (121). A wire (130) which is installed and stretched by an outer receiving member (129) of a rear frame (98) on a planting bar stop lever (128) provided on the upper back surface of the seedling mounting table (16) of the planting section (15). The clutch arm (127) is connected via. Then, the planting bar stop lever (12
8) When any of the planting claws (17) for 6-row planting is stopped by operation, fertilizer application is performed by disconnecting the row stopping clutch (125) corresponding to the stopped planting claw (17). The operation is stopped, and fertilizer is applied only to the row on which the seedlings are to be planted by the planting claws (17). ) ... while fertilizing the fertilizer, and the operator operates the clutch lever (126) to apply the ferrule.
By cutting 5), the 6-case feeding case (4
7) ... Any or all of them are arbitrarily selected so that fertilization can be stopped regardless of seedling planting.

As is apparent from the above, the fertilizer applicator (36)
When the vehicle is mounted on the traveling vehicle (1), the rear cover (45) is removed, and the central portion of the base frame (53) in plan view H is bolted and fixed to the upper surface of the rear end of the subframe (42), and the subframe (42) is fixed. Left and right side brackets (5
5) The left and right side stays (54) and (54) are fixed by bolts between (55), and the link frame (40) is provided at the rear end of the vehicle body frame (3) substantially directly above the rear axle case (7) and the rear axle (39). The base frame (53) is fixed via. Then, the bearing rollers (59) are fitted into the elevating rails (56) on the base frame (53) from the upper end openings, and the fertilizer main body frame (51) is inserted through the rails (56) and the rollers (59). ) Is supported by 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) are also supported.
The left and right gas springs (57) and (57) are fixed by bolts between the lower right and left brackets (55) and (55), and the fertilizer applicator (36) is supported by the gas springs (57). Then, the delivery pipes (49) are connected between the side-row fertilizer chute (48) of the floats (34) and (35) and the delivery case (47), and are delivered by the air blow of the turbo fan (50). The fertilizer (A) in the tank (46) taken out to the case is delivered from the delivery pipe (49) to the side-row fertilizer chute (48) so that the fertilizer (A) is adjacent to the seedling planting row by the planting claw (17). ) Is applied and side fertilization is performed.

As described above, by mounting the fertilizer applicator (36) using the link frame (40), the base frame (53) can be formed lightweight and compact, and the load of the fertilizer applicator (36) can be applied to the body frame (36). 3) By supporting at the rear end, the fertilizer applicator (36) can be stably supported on the rear axle (39). The fertilizer body frame (51)
Since the weight of the fertilizer applicator (36) is received by the rear axle case (7) via the gas spring (57), the fertilizer applicator (36) can be supported at a stable position on the traveling vehicle (1) side, and Vibration generated on the traveling vehicle (1) side can be absorbed by the gas spring (57), and due to the shock absorber effect of the gas spring (57), the fertilizer feeding amount is easily stabilized and the fertilizer applicator (36) body The durability of can be improved.

By supporting the fertilizer applicator (36) at the lowered position of the elevating rail (56), the body cover (1)
2) The fertilizer application can be performed by supporting the fertilizer application device (36) at a low position on the upper surface. On the other hand, by supporting the fertilizer applicator (36) at the raised position of the lifting rail (56), a container for receiving the fertilizer (A) remaining in the tank (46) can be easily inserted below the chute (72). The fertilizer body frame (51) to the tank (46)
And the lowering width of the fertilizer applicator (36) can be easily made compact and the center of gravity of the fertilizer applicator (36) can be made close to each other.
The bottom cover (75) is removed downward by the unlocking operation of 3), the rubber ring (88) is removed, and the inlet plate (82), the feeding plate (84) and the outlet plate (86) are moved downward from the feeding case (47). Then, the plates (82) (84) (86) can be cleaned.

Further, the engagement plates (104) (105) are separated by the unlocking operation of the coupling lever (103), the input rod (106) and the output rod (107) are separated, and 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 guide of the lifting rail (56). Further, the connection of the swing arm (110) and the telescopic rod (111) by the shaft holes (112) ..., and the ratio of the distance of each rod (107) (111) connection point to the fulcrum shaft (101) can be freely changed. By adjusting the feeding amount adjusting lever (102), the rotation speed of the feeding shaft (87) is changed in multiple steps or steplessly while the rotation speed of the fertilizer input shaft (95) is kept constant, and the feeding plate (84 The amount of fertilizer (A) delivered can be adjusted in multiple stages or steplessly. Moreover, planting section (15)
Operation of the bar stop lever (128) of the planting part (15)
Just by changing the number of planting nails in the
Fertilizer feeding of the feeding case (47) facing 7) can be automatically stopped via the clutch arm (127), waste of fertilizer can be prevented, and the feeding case (47) for 6 rows can be formed. The clutch levers (126) provided corresponding to each other can be arbitrarily turned on and off by an operator, and 6
The fertilizer (A) feeding by the whole or a part of the feeding case (47) can be stopped manually.

Further, the feeding case (4) is attached to a case bracket (68) having front and rear ends fixed between two substantially parallel fertilizer main body frames (51) and a rear surface frame (98).
By fixing 7) with bolts (47a),
The fertilizer tank (46) and the feeding case (47) can be firmly and strongly supported on the front and rear frames (51) and (98) in a double-sided state, and vibration and chatter of the fertilizer feeding can be minimized. it can.

By the way, as shown in FIGS.
The turbo fan (50) having a blower port facing the left end of the fertilizer main body frame (51) has a fan drive motor (131) for rotating the blades (50a) in a front protrusion shape, and has a main body frame (51). Fixed bracket with U-shaped cross section (13
A mounting plate (133) having a U-shaped cross section, which is fixed to the front side of the fan (50), is rotatably supported by a rotation fulcrum shaft (134) on the front side of the fan (50).
Has a base end fixed to the front surface of the left end of the main body frame (51) and a front end extending forward, and a mounting plate (133) slidably supported on the upper surface of the bracket (132), and a shaft holder (135) of the bracket (132). ) The fulcrum shaft (1
34) by inserting the mounting plate (133) into the main body frame (51) and connecting the blower port of the turbo fan (50) to the retaining ring (1) of the patchon lock (136) on the rear surface side of the fan (50).
36a) to the hook (13) on the rear surface of the body frame (51)
7) It is locked and fixedly held by the
6) When the lock is released, the fan (5
0) is rotated forward about the fulcrum shaft (134) by about 90 degrees, the lock pin (1) elastically supporting the bracket (132) from below through the compression spring (138).
39) The upper end is projected above the bracket (132) and is inserted into the pin hole (140) below the mounting plate (133),
The fan (50) is held at the open position to reduce the horizontal width of the entire fertilizer application frame (51). In the figure, reference numeral (141) is an L-shaped suction body that faces the air suction port (141a) downward on the side opposite to the side where the motor (131) of the turbofan (50) is installed.

[0034]

As is apparent from the above embodiments, the present invention has a fertilizer blower pipe (51) for delivering fertilizer blown air, which extends substantially horizontally across the entire width of the fertilizer applicator (36) in the left-right direction, A support frame (98) is extended substantially parallel to the pipe (51), and the blower pipe and the support frame (51) (98) are provided.
The fertilizer hopper (46) and the feeding case (47) are mounted on the support member (68) by connecting a plurality of support members (68) at substantially equal intervals, and thus two substantially parallel fertilizers are applied. The fertilizer hopper (46) and the feeding case (47) can be firmly supported between the main body frame (51) and the support frame (98) in a two-sided state, and the strength is improved,
It enables good installation without vibration or chattering.

Further, since the feeding case (47) under the fertilizer hopper (46) is detachably attached to the support member (68), the fertilizer hopper (46) and the feeding case (47) are attached to each other. Fairly fertilizer hopper (4
The fertilizer supply port of 6) can be set to the upper position to facilitate the fertilizer supply work, and the work space for taking out the residual fertilizer can be easily secured downward, and further, it can be integrated with the fertilizer hopper (46). The feeding case (47) can be easily removed, and the fertilizer hopper (46) and the feeding case (4) can be removed.
It is possible to easily perform maintenance and inspection work for 7) and these peripherals.

Further, the feeding adjustment fulcrum shaft (109) of the feeding amount adjusting member in the fertilizer feeding case (47) is supported by the bearing member (108) fixed to the rear portion of the support frame (98). , The manure hopper (46) and the feeding case (47) on the rear side thereof, the feeding adjustment fulcrum shaft (10
A fertilizer feeding drive mechanism including 9) is provided so that not only the assembling operation and the adjusting operation of the fertilizer feeding amount can be easily performed, but also the detachment from the intermediate portion of the driving mechanism can be easily performed, and the fertilizer hopper (46 ) And the feeding case (47) can be easily lifted or removed.

Furthermore, a blower fan (50) for supplying fertilizer blown air to the fertilizer blower pipe (51) is provided with the blower pipe (5).
Since it is fixed to one end side of 1) so that it can be opened freely,
The fertilizer blower pipe (51) can be easily inspected and cleaned, and when it is necessary to run on the road or store the machine, the blower fan (50) protruding outside the fertilizer blower pipe (51) is folded inside by opening. When it is folded, the entire width can be easily reduced, resulting in a remarkable effect such as a compact body.

[Brief description of drawings]

FIG. 1 is a side view of a fertilizer tank 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. 9.

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.

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 fertilizer applicator drive unit.

FIG. 18 is a side view of a turbo fan unit.

FIG. 19 is a plan view of a turbo fan unit.

[Explanation of symbols]

 (36) Fertilizer (46) Fertilizer tank (fertilizer hopper) (47) Feeding case (50) Fan (51) Fertilizer main frame (air duct) (68) Case bracket (supporting member) (98) Rear frame (supporting frame) ) (108) Bearing plate (bearing member) (109) Feeding drive shaft (fulcrum shaft)

Claims (4)

[Claims] 1. A fertilizer blower pipe for sending fertilizer blowout air is extended substantially horizontally across the entire width of the fertilizer applicator in the left-right direction, and a support frame is extended substantially parallel to the fertilizer blower pipe, and the blower pipe and the support frame are provided. A fertilizer applicator for a rice transplanter, characterized in that the support members are provided with a fertilizer hopper and a feeding case, the spaces being connected by a plurality of support members at substantially equal intervals. 2. The fertilizer application apparatus for a rice transplanter according to claim 1, wherein the feeding case under the fertilizer hopper is detachably attached to the support member. 3. The fertilizer application apparatus for a rice transplanter according to claim 1, wherein the feeding adjustment fulcrum shaft of the feeding amount adjusting member in the fertilizer feeding case is supported by a bearing member fixed to the rear portion of the support frame. 4. The fertilizer application apparatus for a rice transplanter according to claim 1, wherein a blower fan for supplying fertilizer blown air to the fertilizer blower pipe is fixed to one end side of the blower pipe so as to be openable.