JPH08214656A - Rice transplanter - Google Patents

Abstract

PURPOSE: To provide a rice transplanter capable of easily preventing a fertilizer delivering case from longitudinal vibration thereof during an operation and getting rid of the out of order such as the lack of uniformity in fertilizing amount or the disengagement of a fertilizer conveying hose. CONSTITUTION: This rice transplanter equipped with a fertilizing hopper, a fertilizer delivering case for multiple rows (47) discharging the fertilizer in the hopper and an air tank (51) for supplying an air blast to the discharging part of the case, and also a rail for lift up and down (56) for installing the fertilizer delivery case freely liftable up and down and a locking lever (63) hooked to the rail for lift up and down (56) capable of being freely hooked and unhooked at the front side of the fertilizer delivering case, comprises a rear side locking member (64) for hooking the fertilizer delivering case at its rear side to the rail for lift up and down (56).

Description

Detailed Description of the Invention

[0001]

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

[0002]

2. Description of the Related Art Conventionally, as disclosed in Japanese Patent Laid-Open No. 3-18714, there has been a technique for mounting a mid-mount type fertilizer applicator on a traveling vehicle.

[0003]

In the above-mentioned prior art, when the fertilizer feeding case is fixed at a constant height, the work of taking out the fertilizer remaining in the fertilizer feeding case or the maintenance work becomes troublesome. Further, by providing the fertilizer feeding case so that it can be raised and lowered, the case can be raised and residual fertilizer can be easily taken out. However, when the lock lever for fixing the case to the raised position or the lowered position is provided on the front side, the lock lever can be easily operated from the driver's seat side, but it easily vibrates back and forth during work, and the fertilizer application amount is not sufficient. There is a problem that it becomes uniform or the fertilizer transfer hose comes off. further,
When a handle for raising and lowering the fertilizer feeding case is provided, it is necessary to operate the lock lever and the handle in parallel when raising and lowering the case, which causes a trouble in raising and lowering the fertilizer feeding case. Further, when a drive rod for transmitting a driving force is provided in the fertilizer feeding case, it is necessary to use a tool to remove the drive rod when the case is moved up and down. Therefore, it is possible to connect the drive rod so that it can be freely separated in the middle to eliminate the need for a tool, but it is necessary to have a structure that maintains the connection strength of the drive rod, and by making the drive rod malfunction when it is disconnected, There is a problem that part of the drive rod is swung around and damaged.

[0004]

SUMMARY OF THE INVENTION Therefore, according to the present invention, a fertilizer application hopper for storing fertilizer, a multi-row fertilizer feeding case for feeding fertilizer in the hopper, and an air tank for supplying air to the fertilizer feeding portion of the case. In the rice transplanter provided with an elevating rail for mounting the fertilizer feeding case so that the fertilizer feeding case can move up and down, and a lock lever for engaging and disengaging the fertilizer feeding case at the front side of the fertilizer feeding case. With a rear lock member that locks the case to the lifting rail, the front and rear sides of the fertilizer feeding case are locked by the lock lever and the rear lock member, so that the fertilizer feeding case can be moved back and forth during the work. Vibration can be easily prevented, problems such as non-uniform fertilizer application and detachment of the fertilizer transfer hose can be eliminated, and the fertilizer feeding case lifting structure is durable. Improvement in which the obtaining aims to facilitate such.

Further, the fertilizer feeding hopper for feeding fertilizer, a multi-row fertilizer feeding case for feeding the fertilizer in the hopper, and an air tank for feeding air to the fertilizer feeding portion of the case are provided, and the fertilizer feeding case is moved up and down. In a rice transplanter that is equipped with a left and right lifting frame that can be mounted vertically on rails,
The lift frame that connects between the left and right lifting frames and the lock lever that attaches to the lifting frames are arranged close to each other.The connection between the left and right lifting frames can be reinforced by the lift frame, and the mounting strength of the left and right lifting frames is increased. In addition to being able to easily improve, the lifting frame and the lock lever can be simultaneously gripped so that the lifting frame can be easily lifted and lowered, and workability such as removal of residual fertilizer and maintenance can be easily improved.

Further, a fertilizer feeding hopper for feeding fertilizer, a multi-row fertilizer feeding case for feeding the fertilizer of the hopper, and an air tank for feeding air to the fertilizer feeding portion of the case are provided, and the fertilizer feeding is installed so as to be vertically movable. In a rice transplanter that has a drive rod that transmits the fertilizing drive force to the case,
The drive rod is connected to the fertilizer input shaft on the machine side through a detachable joint member. By adopting a structure in which the joint member is attached and detached without a tool, the drive rod side with respect to the fertilizer input shaft is attached. It can be separated without leaving any parts, and even if the drive rod is erroneously operated with the drive rod disconnected after raising and lowering the fertilizer feeding case, the fertilizer input shaft will only rotate idly, so it is possible to eliminate the problem of damage due to erroneous operation. is there.

[0007]

Embodiments of the present invention will now be described in detail with reference to the drawings. FIG. 1 is a side view of a lifting rail section, FIG. 2 is a side view of a passenger rice transplanter, and FIG. 3 is a plan view of the same, in which (1) is a traveling vehicle on which an operator rides, and an engine (2). Is mounted above the front part of the vehicle body frame (3) to support the front wheels (6) for traveling the paddy field through the front axle case (5) in front of the gear shift case (4), and the gear shift case (4) A rear axle case (7) is connected to the rear part, 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). )
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).

Further, (15) in the figure is a planting section equipped with a seedling table (16) for planting 6 rows, a plurality of planting claws (17), etc. Forward tilting seedling stand (1
6) is supported on the planting case (20) through the lower rail (18) and the guide rail (19) so as to be slidable left and right, and at the same time, 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. Further, a support frame (24) is provided on the front side of the planting case (20) via a rolling fulcrum shaft (23), and travels via a link mechanism (27) including a top link (25) and a lower link (26). A supporting frame (24) is connected to the rear side of the vehicle (1), and an elevating cylinder (28) for elevating and lowering the planting part (15) through the link mechanism (27) is connected to the lower link (26). Front and rear wheels (6)
(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, reference numeral (29) in the drawing denotes a traveling speed change lever,
(30) is a sub gear shift lever for planting up / down and work traveling gear shifting,
(31) is a planting sensitivity adjusting lever, (32) is a main clutch pedal, (33) and (33) are left and right brake pedals,
(34) 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 and 5, the engine (2) is mounted on the front portion of the pair of left and right rectangular tubular body frames (3) and (3), and the front axles (37) and (37) are mounted. The front axle case (5) that pivotally supports the left and right front wheels (6) (6) via the vehicle body frame (3) behind the engine (2)
(3) A continuously variable belt shifting case (38) is provided between the left and right vehicle body frames (3) and (3) behind the front axle case (5), which is mounted on the lower surface, and the left and right vehicle body frames (38) behind the continuously variable transmission case (38) ( 3) A rear gear case (4) is provided between (3) and a rear axle case (7) that pivotally supports the left and right rear wheels (8) (8) via rear axles (39) (39). (3) (3) The output of the engine (2) is fixed to the lower surface of the rear end of each shift case (38).
The driving force is transmitted to each of the axle cases (5) and (7) via (4) to drive the front and rear wheels (6) and (8).

Further, right and left columns (40) (40) are erected on the upper surfaces of the rear end portions of the left and right body frames (3) (3), and the upper ends of the left and right columns (40) (40) are connected by a horizontal frame (41). The column (40) and the horizontal frame (41) are integrally fixed to each other to form a portal shape in a front view. Then, between the brake pedal receiving shaft (42) in the middle of the body frame (3) and the middle of the horizontal frame (41), subframes (43) and (43) that are inclined forward, rearward, and high are installed, and
Between the sub-frames (43) (43), the lifting cylinder (2
8), and the link mechanism (27) formed by the top link (25) and the lower link (26) is attached to each frame (3) (41) via the support shafts (44) (45). Link mechanism (27) by (28)
The planting part (15) is moved up and down by rocking.

Further, as shown in FIGS. 6 and 7, a fertilizer application hopper (46) for containing fertilizer, a fertilizer feeding case (47) for supplying a constant amount of fertilizer, and a side fertilizer chute () for the floats (34) (35). 48) a flexible transfer hose (4
A blower (50) for discharging fertilizer through 9) and a cylindrical air tank (51) are provided in the fertilizer applicator (36), and a blower (5) is provided at the right end of the air tank (51).
0) is attached and 6 sets of fertilizer feeding cases for 6 rows (47)
Are arranged above the air tank (51).

Further, as shown in FIGS. 8, 9, 10, 11, and 12, left and right base frames (52) are provided on both sides of the horizontal frame (41) at the rear end of the vehicle body frame (3).
The fertilizer applicator (36) is provided via the base frame (52) which is attached with (52) and is laid horizontally horizontally in the front-rear direction, and brackets (54) (54) are attached to the left and right base frames (52) (52). The air tank (51) is fixed by bolts via the base frame (52).
Side stays (55) between the rear end and the body frame (3)
The base frame (5
2) Front and rear lifting rails (56) are erected on the front and rear sides, and one pair of front and rear and two pairs of left and right lifting rails (56) (56) are provided.
(56) The fertilizer applicator (36) is mounted via the (56) so as to be able to move up and down, and a pair of left and right gas springs (5)
7) (57) attaches and lowers the fertilizer applicator (36) so that the rear axle case (7) arranged at the rear end of the vehicle body frame (3) supports the weight of the fertilizer applicator (36). As shown, the front and rear lifting rails (56) (5
6) A bearing roller (59) provided with a bearing plate (58) opposed to the bearing 6) and rotatably fitted in the rail (56).
... are rotatably supported by a bearing plate (58), and two pairs of front and rear rails (56) and (56) are provided symmetrically, and two sets of upper and lower rollers (56) are provided for one rail (56). 59) (5
9) is attached, and a pair of left and right bearing plates (58) (58)
A rail (56) and eight rollers (59) ... Are supported by the base frame (52) so as to be able to move up and down.

Further, the lower end of the gas spring (57) is connected to the vehicle body frame (3), 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 erected substantially parallel to each other, and the gas spring (57) is placed at the center of gravity of the fertilizer applicator (36) in the front-rear width direction. ) Is connected, and the gas spring (57) has a stretching force which is substantially equal to or slightly smaller than the weight of the fertilizer applicator (36).

Further, FIG. 12, FIG. 14, FIG. 15 and FIG.
As shown in FIG. 7, the left and right bearing plates (58) (58) are integrally fixed by a round pipe-shaped front frame (60), and a handle (61) grasped by an operator when lifting the fertilizer applicator (36) is placed on the front side. The frame is fixed to the frame (60) by welding, and the left and right bearing plates (58) (58) are rotatably supported by the left and right lock levers (63) and (63) through the support shafts (62) and (62). The left and right bearing plates (58) on the left and right lifting rails (56) (56) via the left and right lock levers (63) (63).
(58) While locking the front part, left and right lock pins (64) (64) on the left and right lifting rails (56) (56)
13 is slidably mounted, and the lock pin (64) is disengageably engaged with the engagement hole (58a) of the bearing plate (58) shown in FIG. 13, and the left and right lifting rails (56) (56) on the rear side are attached. The left and right bearing plates (56) (56) are attached to the left and right lock pins (64).
The front part and the rear part of the bearing plate (56) are fixed to the front and rear lifting rails (56) and (56) by a lock lever (63) and a lock pin (64). Further, the vertical engaging holes (65) (6
6) is formed, and the lock lever (63) is engaged in each of the engagement holes (65) (66) to fix and support the fertilizer applicator (36) in the raised position or the lowered position. The lock lever (63) Is extended to the lower side of the handle (61), and the operator grips the handle (61) that is projected toward the driver's seat (13) side and operates the lock lever (63) to operate the lock lever (6).
3) can be disengaged from the engagement holes (65) (66).

Further, the case front bracket (67) is welded and fixed to the front frame (60), and the front side of the feeding case (47) is bolted and fixed to the case front bracket (67) as one unit. The two cases of feeding case (47) (47) to the left and right lifting rails (5
6) and (56), and lift rails (56) (5
The feeding cases (47) (47) for two articles are arranged on the outside of the machine of (6), respectively, and the feeding cases (47) for three units are arranged side by side as one set of two articles.

Further, as shown in FIGS. 17, 18, and 19, the intake (6) on the front side of the upper surface of the feeding case (47).
8) The lower outlet (69) of the hopper (46) is fitted to the hopper (46), the outlet (70) is formed on the lower side of the front surface of the feeding case (47), and the outlet (70) is detached by the detachable cap (71). 70) is closed. The cap (7
1) is removed, the outlet (70) is opened, and the tank (4
6) The fertilizer inside is made to flow downward to the front side. At this time, the fertilizer applicator (36) is supported at the ascending position of the elevating rail (56), and the take-out port (70) and the air tank (51) below.
The space between the two and expand the container for fertilizer into the outlet (7
0) It is configured so that it can be easily inserted downward and residual fertilizer can be easily taken out.

Further, a bottom lid (73) is detachably fixed to the lower surface of the feeding case (47) through a closing lever (72), and an outlet (74) is formed on the lower surface of the bottom lid (73) made of hard synthetic resin. ) Forming an air tank (51)
Joining pipe (7) made of soft synthetic resin to fit the front end to
5), a front end of a joint (76) made of a hard synthetic resin is detachably fitted to the rear end of the pipe (75), and the transfer hose (4) is attached to the rear end of the joint (76).
9) is fitted, and the air blower (50) blows air from the air tank (51) to the pipes (75) ... And the hose (49).
The fertilizer falling from the outlet (74) of the bottom lid (73) to the middle of the joint (76) is transferred to the transfer hose (49), and the inlet to the middle of the joint (76) forming the T-shaped flange. (77) is formed so as to open upward, and the cap (7) is fitted to the outlet (74) of the bottom lid (73).
8) is fixed, and the cap (78) is attached to the inlet (7).
7) to be detachably fitted, and the outlet (74) should be connected to the inlet (7
7), the mounting plate (79) is integrally fixed to the air tank (51), and the joint (76) is bolted to the mounting plate (79).

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 (73), 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 at the lower end, each plate (82), (84), (86) is supported by a feeding shaft (87) so that it can be pulled out downward, and by a closing lever (72). Each plate (82) (84) (86) is elastically pressed between the feeding case (47) and the bottom lid (73), and the inlet plate (82) and the outlet plate (86) are locked to the feeding case (47). Then, the payout shaft (87) is allowed to freely rotate with respect to each plate (82) (86), the payout plate (84) is pivotally engaged with the payout shaft (87), and the payout shaft (87) causes the payout plate (87) to rotate. (84) is forcibly rotated to move the fertilizer from the intake (80) into the discharge port (83) to the discharge port (85) and drop it toward the outlet (74).

Further, a brush (89) for removing excess fertilizer on the upper surface of the delivery port (83) is provided at the end of the intake port (80), and the brush (8) is taken through a height adjusting image (90).
9) is attached to the feeding case (47) in a height-adjustable manner, the height of the lower end of the brush (89) with respect to the upper surface of the feeding plate (84) is adjusted from the outside of the feeding case (47), and the feeding port (83).
It is configured to regulate the fertilizer delivery rate.

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 part of the air tank (51) and the compressed air intake (91) are communicated with each other by a shunt pipe (92), and the blower (50) is provided through the pipe (92) and the intake (91). ) And air from the air tank (51) are supplied to the air outlet (81), and air is blown from the air outlet (81) to the air outlet (83) that has been moved to the position of the air outlet (85). The fertilizer (1) is forcibly dropped downward to prevent the granular fertilizer or this powder from remaining in the feeding port (83).

Further, as shown in FIG. 11 and FIG.
A PTO shaft (93) for transmitting the output of the engine (2) to the planting part (15) is extended rearward from the gear shift case (4), and a bearing cylinder (94) is attached to the left support column (40).
Fertilizer input shaft (95) of the bearing tube (94)
Are linked to the middle of the PTO shaft (93) through a chain (96). A crank plate (97) is detachably fixed to the rear end of the fertilizer input shaft (95) by a ball lock structure. Further, a square pipe type rear frame (99) for integrally fixing the bearing plate (58) and the case rear bracket (98) is provided, and the rear frame (99) is arranged substantially parallel to the air tank (51) and the front frame (60). The case (4) is placed horizontally on the bracket (98) behind the case.
7) Fix the rear side with bolts.

Further, the left bearing plate (58) pivotally supports the feed amount adjusting lever (102) via the bracket (100) and the shaft (101), and the left bearing plate (58).
The adjustment link (104) and the fulcrum link (105) are provided on the fulcrum via the fulcrum shaft (103), and the adjustment link (104) is connected to the screw part (106) of the lever (102), and the fulcrum link (105) is connected to the fulcrum link (105). The adjustment fulcrum (107) is attached, and the drive arm (108) is pivotally supported on the fulcrum (107).
Then, the screw portion (106) is rotated by the rotation operation of the lever (102) protruding toward the driver's seat (13), whereby the links (104) (105) are rotated.
Rotates integrally and changes the position of the adjustment fulcrum (107), so that the operator at the driver's seat (13) can adjust the delivery amount of the lever (102).

Further, a feeding drive shaft (110) is rotatably supported by the rear frame (99) via a bearing plate (109), and a swing arm (111) is supported on the drive shaft (110).
And the drive arm (108) is connected to one end side of a telescopic rod (112) whose length is adjustable, and the swing arm (111) is connected to the other end side of the telescopic rod (112). , The crank plate (97) is connected to a drive arm (108) via an input rod (113), and the PTO shaft (93) for driving implantation is driven through the drive arm (108) and the input rod (113). The drive force is transmitted to the feeding drive shaft (110), and the planting section (15) and the fertilizer applicator (36) are simultaneously operated or stopped by turning on and off a planting clutch (not shown). ) For removing the crank plate (97) and separating the drive part to lift the rising part of the fertilizer applicator (36). The position of the adjustment fulcrum (107) is changed by operating the lever (102). Allowed, and the reciprocating stroke of the telescopic rods (112) by changing steplessly configured to perform the stepless adjustment of the fertilizer feed-out amount.

Further, as shown in FIG. 10, the one-way clutch (114) for preventing rotation is attached to the rear frame (99).
The clutch shaft (116) is rotatably supported by the clutch shaft (116), and the input link (118) is provided on the clutch shaft (116) through the one-way clutch (117).
09) has a swinging link (119) fixed thereto, the link (119) is connected to the input link (118) through a linking rod (120), and the input link (118) is swung to shift the clutch shaft (119). 116) is intermittently rotated in one direction.

[0026] Further, the stud clutch case (121) is fixed to the feeding case (47), and the input shaft (124) is always attached to the upper end side of the feeding shaft (87) via bevel gears (122) (123). The clutch case (121) is internally provided with a ratchet clutch (not shown) for connecting and disconnecting the input shaft (124) to the clutch shaft (116).
The clutch lever (126) and the clutch arm (127) for connecting and disconnecting the row-stop clutch of (21) are separately arranged before and after the clutch case (121), and the seedling table (16) of the planting section (15) is arranged. ) The clutch arm (127) is attached to a plant clutch stopper unit clutch lever (128) provided on the upper rear surface via a stopper wire (130) stretched by an outer receiver (129) of the rear frame (98). To connect. When any one of the planting claws (17) for planting six rows is stopped by operating the planting row stopping unit clutch lever (128),
The case (12) corresponding to the stopped planting claw (17)
When the fertilizing operation is stopped by disengaging the row clutch of 1) and fertilizing is applied only to the row where the seedlings are planted by the planting claws (17). For example, when planting four seedlings on the left side and the center. , Fertilizer is applied from the left and middle four feeding cases (47) ..., and the operator operates the clutch lever (126) to disconnect the row stopper clutch of the case (121), thereby Delivery case (4
7) ... Any or all of them are arbitrarily selected so that fertilization can be stopped regardless of seedling planting.

Further, as shown in FIGS. 8, 9, 10, and 12, the lower ends of the left and right supporting legs (131) (131) are fixed to the upper ends of the left and right lifting rails (56) (56) on the front side.
By fixing both sides of the pipe frame (132) between the upper ends of the left and right supporting legs (131) (131), the pipe frame (132) is laterally installed in front of the two fertilization hoppers (46) (46) in the center. The left and right elevating rails (56) (56) are reinforced by the connection of the pipe frame (132), and the vehicle body cover (1) on the rear side of the driver's seat (13) as shown in FIG.
2) When a supplemental fertilizer bag (134) is placed on the upper surface of the rear center, the front side tilt of the fertilizer bag (134) is prevented by the driver's seat (13), and the upper pipe frame (horizontal extension) is provided. 132) and the lower handle (61) prevent the fertilizer bag (134) from tilting backwards. Also, the middle of the round bar hose guide body (133) is extended below the transport hose (49) (49) for one unit, and both ends of the hose guide body (133) are connected to the transport hose (49). It is bent upward and fixed to the side surface of the mounting plate (79) (79), and the downward and leftward bending of the transfer hose (49) near the joint of the joint (76) is restricted by the hose guide body (133). , The connection end of the transfer hose (49) is extended in the extending direction of the joint (76) to support the transfer hose (49).
Bending prevents the connecting end of the hose (49) from coming off the joint (76).

Further, as shown in FIGS. 13, 14, and 15, the front frame (60) and the rear frame (99) are located outside the two fertilizer feeding cases (47) (47) at the central mounting position.
The left and right bearing plates (58) (58) are welded and fixed to the front frame (60) and the rear frame (99), and the left and right side frames (135) (135) are integrally fixed to each other. Fertilizer feeding case (47)
(47) with bearing plate (58) and side frame (135)
It is attached to the front frame (60) and the rear frame (99) between, and each frame (60) (99) of a rectangular frame shape.
(135) is divided into three equal parts in the left-right direction by the bearing plate (58), and the fertilizer feeding case (47) for six rows is hung and supported between the front and rear frames (60) and (99).

Further, as shown in FIGS. 1, 20 and 21, the engaging holes (65) (66) of the elevating rail (56).
A hook arm (137) that is engaged and held by a spring (136) is connected to the support shaft (62), and the hook arm (137) is integrally fixed to the lock lever (63) via the support shaft (62). The hook arm (137) is pulled out from the engaging holes (65) (66) against the spring (136) by the upward rotation operation of the lock lever (63). Further, the guide frame (139) is attached to the reinforcing frame (138) on the rear surface of the rear lifting rail (56).
The lock pin (64) is slidably attached in the left-right direction via the engaging hole (58) of the bearing plate (58).
The spring (14) for holding the lock pin (64) in a)
0) and a release lever (141) integrally fixed to the lock pin (64), and the release lever (141) protruding rearward is provided with a notch (14) of the guide frame (139).
2) It is engaged with and disengaged from the spring 2) so as to be supported at a position where the lock pin (64) is pulled out from the engagement hole (58a) against the spring (140).

Then, the hook arm (137) is engaged with the lower engaging hole (66), and the front portion of the bearing plate (58) on the front side of the fertilizer feeding case (47) is attached to the lock lever (63) and the hook arm (63). 137) to the front lifting rail (56), and the fertilizer feeding case (47) rear bearing plate (58) rear part via the lock pin (64) rear lifting rail (56). The fertilizer feeding case (47) is fixed to the descending position so that fertilizing work is performed in parallel with the rice planting work, and at the same time, the hook arm (137).
Is engaged with the upper engaging hole (65), and the hook arm (13
The front part of the bearing plate (58) is locked to the elevation rail (56) on the front side via 7), the fertilizer feeding case (47) is fixed to the raised position, and remains inside the fertilizer feeding case (47). It is configured to perform a residual fertilizer removal operation for discharging the fertilizer from the outlet (70) or a maintenance operation for removing the bottom cover (73) and disassembling the feeding plate (84) and the like.

As is apparent from the above, a fertilizer application hopper (46) for containing fertilizer, a multi-row fertilizer feeding case (47) for feeding fertilizer from the hopper (46), and a fertilizer delivery for the case (47). Air tank (5
1), a lifting rail (56) for mounting the fertilizer feeding case (47) so as to be able to move up and down, and a lock lever (for detachably locking the lifting rail (56) on the front side of the fertilizer feeding case (47). 63) and the case (47) on the rear side of the fertilizer feeding case (47) to lift rails (5).
Lock pin (6) which is a rear side lock member to be locked to 6)
4) is provided, and the front side and the rear side of the fertilizer feeding case (47) are locked by the lock lever (62) and the lock pin (64) so that the fertilizer feeding case (47) vibrates back and forth during work. Bearing plates (58) (58), which are left and right lifting frames, which prevent the fertilizer feeding case (47) from being vertically mounted on the lifting rails (56), and left and right bearing plates (5).
8) A handle (61) which is a lift frame to be connected between (58) and a lock lever (63) attached to the bearing plate (58) are arranged close to a range where an operator can simultaneously grip them with hands, and The bearing plate (58) is connected to the handle (6).
1) to improve the mounting strength of the left and right bearing plates (58), and by simultaneously gripping the handle (61) and the lock lever (63), the bearing plate (58) can be easily moved up and down. The fertilizer hopper (46) and the fertilizer feeding case (47) are removed by the operator in the rearward posture from the driver's seat (13) side holding the left and right lock levers (63) and the handle (61) in both hands and lifting or lowering them. It is configured to move up and down.

Further, as shown in FIGS. 16 and 22, the cylinder shaft (143) is welded and fixed to the crank plate (97),
A lock ball (145) for fitting the rear end of the fertilization input shaft (95) pivotally supported via a bearing (144) into the inner hole of the cylinder shaft (143) and elastically engaging the fertilization input shaft (95) with a lock ball (145). The cylinder shaft (143) is provided with the cylinder shaft (14
3) is detachably engaged with the fertilization input shaft (95) through the lock ball (145), and the tubular shaft (143) is detached and attached to the fertilization input shaft (95) without a tool. When releasing the engagement of the lock pin (64), the tubular shaft (143) is removed from the fertilizer input shaft (95), and the handle (6
1) and the lock lever (63) are gripped to raise the fertilizer feeding case (47), while the fertilizer feeding case (47) is lowered, the lock pin (64) is engaged, and the fertilizer input shaft A cylinder shaft (143) is attached to (95) to drive fertilizer application. An input rod (113), which is a drive rod for transmitting fertilizer drive force, is provided to a fertilizer feeding case (47) that is vertically movable. The input rod (113) is connected to the fertilizer input shaft (95) on the machine side through a cylindrical shaft (143) which is a detachable joint member.
Is connected to the fertilizer application shaft (143) without using a tool, so that the fertilizer input shaft (95) can be separated from the fertilizer input shaft (113) without leaving a component on the input rod (113) side, and the fertilizer feeding case (47) can be separated. ) Even if the input rod (113) is lifted up and down and the input rod (113) is erroneously operated, the fertilizer input shaft (95)
It is configured to eliminate the trouble such as the damage of parts due to the idle rotation of the fertilizer input shaft (95) only by the idle rotation of the fertilizer.

[0033]

As is apparent from the above embodiments, the present invention is a fertilizer application hopper (46) for containing fertilizer, and the hopper (4).
6) Fertilizer feeding case for multi-row fertilizer delivery (4
7) and an air tank (51) for supplying air to the fertilizer delivery part of the case (47), and a lifting rail (5) for mounting the fertilizer feeding case (47) so as to be able to move up and down.
6) and a lock lever (63) that is detachably locked to the lifting rail (56) on the front side of the fertilizer feeding case (47).
In the rice transplanter equipped with, the fertilizer feeding case (47)
A rear lock member (64) for locking the case (47) to the lifting rail (56) is provided on the rear side, and the front side and the rear side of the fertilizer feeding case (47) are connected to the lock lever (6).
2) and the rear side lock member (64) are engaged, it is possible to easily prevent the fertilizer feeding case (47) from vibrating back and forth during work, and the fertilizer application amount becomes uneven, and the fertilizer transport hose ( This makes it possible to eliminate problems such as detachment of 49) and easily improve the durability of the fertilizer feeding case (47) lifting structure.

A fertilizer hopper (46) for containing fertilizer
And a fertilizer feeding case (47) for multi-row feeding the fertilizer of the hopper (46), and an air tank (51) for feeding air to the fertilizer feeding part of the case (47), and the fertilizer feeding case Lifting rail (47) (56)
Left and right lifting frame (58) (5
In the rice transplanter equipped with 8), the left and right lifting frames (5
8) Lift frame (61) connected between (58)
And a lock lever (6) attached to the lifting frame (58).
3) are arranged close to each other, the connection of the left and right lifting frames (58) can be reinforced by the lift frame (61), and the attachment strength of the left and right lifting frames (58) can be easily improved. At the same time, by simultaneously gripping the lift frame (61) and the lock lever (63), the elevating frame (58) can be easily moved up and down, and the workability such as removal of residual fertilizer and maintenance can be easily improved. Is something that can be done.

A fertilizer hopper (46) for containing fertilizer
And a fertilizer feeding case (47) for feeding multiple fertilizers in the hopper (46), and an air tank (51) for supplying air to the fertilizer feeding portion of the case (47), and is mounted so as to be vertically movable. In a rice transplanter in which a drive rod (113) for transmitting a fertilizing drive force to the fertilizer feeding case (47) is provided, the drive rod () is attached to a fertilizer input shaft (95) on the main body side through a detachable joint member (143). 1
13) is a joint member (143)
By making the structure for attaching and detaching without using a tool, the fertilizer input shaft (95) can be separated without leaving parts on the side of the drive rod (113), and the drive rod (113) can be removed after the fertilizer feeding case (47) is moved up and down. Even if the fertilizer input shaft (95) is erroneously operated in the separated state, the fertilizer input shaft (95) only idles, so that the malfunction caused by the erroneous operation can be eliminated.

[Brief description of drawings]

FIG. 1 is a side view illustrating a lifting rail portion.

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 plan view of a fertilizer application unit.

FIG. 7 is a rear view of the same.

FIG. 8 is a side view of a lifting rail portion.

FIG. 9 is a side view of the fertilizer feeding case portion.

FIG. 10 is a plan view of a fertilizer feeding case portion.

FIG. 11 is a side view of a base frame portion.

FIG. 12 is a rear view of the fertilizer feeding case portion.

FIG. 13 is a side view of the bearing plate portion.

FIG. 14 is a plan view of a handle portion.

FIG. 15 is a rear view of the same.

FIG. 16 is a side view of the same.

FIG. 17 is a sectional side view of the fertilizer feeding case.

FIG. 18 is a rear view of the same section.

FIG. 19 is a sectional plan view of the same.

FIG. 20 is an explanatory rear view of the lock lever portion.

FIG. 21 is a rear view of the lock pin portion.

FIG. 22 is a side view of the fertilizer input shaft portion.

[Explanation of symbols]

 (46) Fertilizer hopper (47) Fertilizer feeding case (51) Air tank (56) Lift rail (58) Bearing plate (lift frame) (61) Handle (lift frame) (63) Lock lever (64) Lock pin (rear side Lock member) (95) Fertilizer input shaft (113) Input rod (drive rod) (143) Tube shaft (joint member)

Claims (3)

[Claims] 1. A fertilizer hopper for containing fertilizer, a multi-row fertilizer feeding case for feeding fertilizer in the hopper, and an air tank for supplying air to the fertilizer feeding section of the case, and raising and lowering the fertilizer feeding case. In a rice transplanter provided with a lifting rail that is freely attached and a lock lever that is detachably locked to the lifting rail at the front side of the fertilizer feeding case, a rear side that locks the case to the lifting rail at the rear side of the fertilizer feeding case. Rice transplanter characterized by having a lock member. 2. A fertilizer hopper for containing fertilizer, a multi-row fertilizer feeding case for feeding fertilizer in the hopper, and an air tank for feeding air to the fertilizer feeding portion of the case, and raising and lowering the fertilizer feeding case. A rice transplanter having left and right elevating frames that are mounted on rails so that the elevating frame can be moved up and down, and a lift frame that is connected between the left and right elevating frames and a lock lever that is attached to the elevating frame are arranged in close proximity. 3. A fertilizer feeding hopper for feeding fertilizer, a multi-row fertilizer feeding case for feeding the fertilizer of the hopper, and an air tank for feeding air to the fertilizer feeding portion of the case, and the fertilizer feeding feed being mounted in a vertically movable manner. A rice transplanter provided with a drive rod for transmitting a fertilizing drive force to a case, wherein the drive rod is connected to a fertilizer input shaft of the machine via a detachable joint member.