JP2000037117A - Rice transplaner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a rice transplanter designed to increase the draft power of a blower or miniaturize the blower. SOLUTION: This rice transplanter features in being equipped with a fertilizing hopper for fertilizer, a fertilizer pay-out case for multi-row use for delivering the fertilizer in the hopper, an air tank for feeding draft for discharging the fertilizer in the pay-out case via a carriage hose onto a planting site, and a blower flanking on one side of the air tank; wherein it is characteristic in that the suction port 138 of the blower lies open downward, grids 148 are provided integratedly with the synthetic resin fan case of the blower and on the suction port 138 approximately at equal intervals in parallel with the direction of airflow.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

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

[0002]

2. Description of the Related Art Conventionally, as disclosed in Japanese Patent Application Laid-Open No. 59-203420, there has been a technique of attaching a mid-mount type fertilizer to a traveling vehicle.

[0003]

The prior art includes a fertilizer application hopper, a fertilizer feeding case, an air tank, and a blower. However, since the blower is provided at a bonnet position in front of the airframe away from the air tank. It is necessary to extend a long blower pipe to the fuselage, so it is not easy to unitize the fertilizer and simplify the assembly structure, etc., and a special space for installing the blower is secured on the hood side of the traveling vehicle There is a need to. Therefore, Japanese Patent Application Laid-Open No.
As disclosed in Japanese Patent Publication No. 18-182, there is a technique in which an air tank is provided in a fertilizer and a blower is disposed on one side of a long air tank in the left-right direction. It is necessary to prevent foreign substances from being sucked.
However, in the structure in which the suction port is closed with a mesh to prevent the inhalation of foreign substances, the mesh can easily improve the blowing function and reduce the size of the blower simply by increasing the air suction resistance. There are problems such as not.

[0004]

SUMMARY OF THE INVENTION Accordingly, the present invention provides a fertilizer application hopper for receiving fertilizer, a multi-row fertilizer feeding case for feeding the fertilizer from the hopper, and a planting section for transferring the fertilizer of the case by a transfer hose. In a rice transplanter provided with an air tank for supplying air to be carried out and a blower provided on one side of the air tank, an intake port of the blower is opened downward, and a lattice is integrally formed in a fan case made of synthetic resin of the blower. Gratings are provided at the mouth in parallel with the direction of air flow at approximately equal intervals. The downward opening of the intake can easily prevent rainwater and other intrusions, and can easily prevent problems such as foreign objects being injected into the intake. In addition to the above, the intake air can be introduced while being rectified by the grid that prevents the inhalation of foreign matter, the air intake resistance can be reduced, the ventilation function can be easily improved, and the ventilation force can be increased. Resulting aims to facilitate downsizing of the blower and it is capable easily perform construction simplification and cost reduction by integrally forming a lattice in the fan case of a synthetic resin.

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is an explanatory plan view of a blower unit, FIG. 2 is a side view of a riding rice transplanter, and FIG. 3 is a plan view of the same, wherein (1) denotes a traveling vehicle on which an operator rides, and an engine (2) is used. It is mounted on the front upper part of the body frame (3), supports the front paddle traveling wheel (6) through the front axle case (5) in front of the gear transmission case (4), and the rear part of the gear transmission case (4). A rear axle case (7) is connected to the rear axle case (7), and the rear axle case (7) supports a paddy field rear wheel (8). A spare seedling mount (10) is mounted on both sides of the hood (9) covering the engine (2) and the like, and the gear shift case (4) is mounted by a body cover (12) on which an operator rides through step (11). ), And a driver's seat (13) is mounted above the vehicle body cover (12), and a steering handle (14) is provided in front of the driver's seat (13) and at the rear of the hood (9).

[0006] In the figure, reference numeral (15) denotes a planting portion provided with a seedling mounting table (16) for six-row planting 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 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 support frame (24) is connected to the rear side of the vehicle (1), and a lifting cylinder (28) for raising and lowering the planting section (15) is connected to the lower link (26) via the link mechanism (27). 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.

[0007] In the figure, (29) is a traveling speed change lever,
(30) is an auxiliary speed change lever for planting elevating and working travel shifting,
(31) is a setting sensitivity adjusting lever, (32) is a main clutch pedal, (33) and (33) are left and right brake pedals,
(34) is a two-floor leveling center float, (35) is a two-floor leveling float, and (36) is a six-floor side fertilizer.

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

Further, left and right columns (40) and (40) are erected on upper surfaces of rear end portions of the left and right body frames (3) and (3), and upper ends of the left and right columns (40) and (40) are connected by a horizontal frame (41). The column (40) and the horizontal frame (41) are integrally fixed to form a portal shape in a front view. And, between the brake pedal receiving shaft (42) in the middle of the vehicle body frame (3) and the middle of the horizontal frame (41), sub-frames (43) and (43) which incline to the front low and rear high are installed.
Lift cylinder (2) between subframes (43) and (43)
8), and a link mechanism (27) formed by a top link (25) and a lower link (26) is attached to each frame (3) (41) via support shafts (44) (45). (28) Link mechanism (27)
Is pivoted to raise and lower the planting section (15).

Further, as shown in FIGS. 6 and 7, a fertilizer application hopper (46) for adding fertilizer, a fertilizer feeding case (47) for supplying a fixed amount of fertilizer, and a side-row fertilizer chute (Float (34), (35)). 48) flexible transfer hose (4
The fertilizer (36) is provided with a blower (50) for discharging fertilizer via 9) and a cylindrical air tank (51), and a blower (5) is provided at the right end of the air tank (51).
0), 6 sets of 6 fertilizer feeding cases (47)
Are arranged above the air tank (51).

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

The lower end of the gas spring (57) is connected to the vehicle body frame (3), and the bearing plate (5
8), the upper end of the gas spring (57) is connected to the rail (56) and the gas spring (57) are erected 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. ), So that the gas spring (57) has an extension force substantially equal to or slightly smaller than the weight of the fertilizer applicator (36).

Further, FIG. 12, FIG. 14, FIG. 15, FIG.
As shown in the figure, the left and right bearing plates (58) and (58) are integrally fixed by a round pipe-shaped front frame (60), and a handle (61) held by an operator when lifting the fertilizer applicator (36) is moved forward. The left and right lock levers (63) and (63) are rotatably supported on the left and right bearing plates (58) and (58) via the support shafts (62) and (62). Left and right lifting plates (58) via left and right lock levers (63) and (63)
(58) The front part is locked, and the right and left lock pins (64) and (64) are attached to the rear left and right elevating rails (56) and (56).
The lock pin (64) is removably engaged with the engagement hole (58a) of the bearing plate (58) shown in FIG. 13, and the rear left and right elevating rails (56) (56) Left and right bearing plates (56), (56) and left and right locking pins (64)
The front and rear portions of the bearing plate (56) are fixed to the front and rear elevating rails (56) (56) by the lock lever (63) and the lock pin (64). Further, the vertical engaging holes (65) (6)
6), and a lock lever (63) is engaged with each of the engagement holes (65) and (66) to fix and support the fertilizer applicator (36) at the raised position or the lowered position. Is extended to the lower side of the handle (61), and the operator operates the lock lever (63) while holding the handle (61) projecting toward the driver's seat (13).
3) can be detached from the engagement holes (65) and (66).

A case front bracket (67) is fixed to the front frame (60) by welding, and the front side of the extension case (47) is fixed to the front bracket (67) by bolts. To the left and right lifting 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, as shown in FIGS. 17, 18 and 19, the inlet (6) on the front side of the upper surface of the feeding case (47).
8), a lower outlet (69) of the hopper (46) is fitted, and an outlet (70) is formed on the lower side of the front surface of the feeding case (47), and the outlet (70) is detached by a removable cap (71). 70) is closed. The cap (7
1) Remove and open the outlet (70) to remove the tank (4).
6) The fertilizer inside (36) is supported at the rising position of the lifting rail (56) at this time, and the fertilizer (36) is supported at the ascending position of the lifting rail (56).
And the container for fertilizer is removed from the outlet (7
0) It is configured so that it can be easily inserted below and that the removal of residual fertilizer can be easily performed.

A bottom cover (73) is detachably fixed to the lower surface of the feeding case (47) via a closing lever (72), and an outlet (74) is formed on the lower surface of the hard synthetic resin bottom cover (73). ) To form an air tank (51).
Pipe made of soft synthetic resin (7
5), the 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 mounted to the rear end of the joint (76).
9) and the blower (50) blows air from the air tank (51) to each pipe (75) ... and the hose (49).
To transfer the fertilizer which falls from the outlet (74) of the bottom cover (73) to the middle of the joint (76) to the transfer hose (49), and enters the middle of the joint (76) forming a T-shaped flange. (77) is formed to be open upward and the fitting cap (7) is fitted to the outlet (74) of the bottom lid (73).
8) is fixed, and the cap (78) is attached to the entrance (7).
7), and the outlet (74) is attached to the inlet (7).
7), the mounting plate (79) is integrally fixed to the air tank (51), and the joint (76) is fixed to the mounting plate (79) by bolting.

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 (73), 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 plates (82), (84), (86) are supported on the feeding shaft (87) so as to be able to be pulled out downward, and the closing lever (72) is used. The plates (82), (84) and (86) are pressed between the feeding case (47) and the bottom cover (73), and the inlet plate (82) and the outlet plate (86) are locked to the feeding case (47). Then, the feeding shaft (87) idles with respect to each plate (82) (86), and the feeding plate (84) is engaged with the feeding shaft (87) so that the feeding plate (84) engages with the feeding shaft (87). (84) is forcibly rotated so that the fertilizer that has entered the feeding port (83) from the inlet port (80) is moved to the discharge port (85) and dropped toward the outlet port (74).

A brush (89) for removing excess fertilizer on the upper surface of the feeding port (83) at the end of the inlet (80) is provided.
9) is attached to the feeding case (47) so as to be adjustable in height, 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 outlet (83).
Is configured to regulate the amount of fertilizer delivered.

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 portion of the air tank (51) and the compressed air inlet (91) are communicated with each other by a branch pipe (92), and the blower (50) is connected through the pipe (92) and the inlet (91). ) And the air from the air tank (51) are supplied to the outlet (81), and are sent from the outlet (81) to the outlet (83) moved to the position of the outlet (85). ) Is forcibly dropped downward to prevent the granular fertilizer or this powder from remaining in the outlet (83).

Further, as shown in FIGS.
A PTO shaft (93) for transmitting the output of the engine (2) to the planting portion (15) extends rearward from the gear transmission case (4), and a bearing sleeve (94) is attached to the left support (40).
And the fertilizer input shaft (95) of the bushing (94)
Is linked to the PTO shaft (93) via 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-shaped rear frame (99) for integrally fixing the bearing plate (58) and the case rear bracket (98) is provided, and the rear frame (99) is substantially parallel to the air tank (51) and the front frame (60). Then, hang it on the bracket (98) after the case,
7) Secure the rear side with bolts.

The left bearing plate (58) is supported by the left bearing plate (58) via a bracket (100) and a shaft (101).
An adjustment link (104) and a fulcrum link (105) are provided via a support shaft (103), and the adjustment link (104) is connected to the screw portion (106) of the lever (102), and is connected to the fulcrum link (105). The adjustment fulcrum (107) is attached, and the drive arm (108) is supported on the fulcrum (107).
The link (104) (105) is rotated by rotating the screw (106) by rotating the lever (102) that projects in the direction of the driver's seat (13).
Are integrally rotated to change the position of the adjustment fulcrum (107), so that the operator of the driver's seat (13) can perform the operation of adjusting the extension of the lever (102).

Further, a feed drive shaft (110) is rotatably supported on the rear frame (99) via a bearing plate (109), and a swing arm (111) is attached to the drive shaft (110).
And the drive arm (108) is connected to one end of an extendable rod (112) whose length is adjustable, and the swing arm (111) is connected to the other end of the extendable rod (112). The crank plate (97) is connected to the drive arm (108) via an input rod (113), and the PTO shaft (93) for planting drive is connected via the drive arm (108) and the input rod (113). The driving force is transmitted to the feeding drive shaft (110), and the operation of simultaneously operating and stopping the planting section (15) and the fertilizer applicator (36) by turning on and off a planting clutch (not shown) is performed. ), The operation of removing the crank plate (97), separating the drive unit, and lifting the rising portion of the fertilizer applicator (36) is performed. 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, a one-way clutch (114) for preventing rotation with the rear frame (99).
, A clutch shaft (116) is rotatably supported via a one-way clutch (117), and an input link (118) is provided on the clutch shaft (116).
09), a swing link (119) is fixed, the link (119) is connected to the input link (118) via a link rod (120), and the input link (118) is swung to thereby rotate the clutch shaft (119). 116) is intermittently rotated in one direction.

[0024] In addition, a locking clutch case (121) is fixed to the feeding case (47), and the input shaft (124) is always connected to the upper end of the feeding shaft (87) via bevel gears (122) and (123). An engaging clutch (not shown) for connecting and disconnecting an input shaft (124) to the clutch shaft (116) is provided inside the clutch case (121) and the case (1).
21) A clutch lever (126) and a clutch arm (127) for disconnecting and operating the locking clutch are distributed and 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 connected to a uniting-clamping unit clutch lever (128) provided on the upper rear surface via a clamping wire (130) that is stretched by an outer receiver (129) of the rear frame (98). Connect. Then, when any of the planting claws (17)... For six-row planting is stopped by operating the planting streak stopping unit clutch lever (128),
The case (12) corresponding to the stopped planting claw (17)
When the fertilizing operation is stopped by disengaging the locking clutch of 1), fertilizing is performed only on the line where the seedlings are planted by the planting claws (17). For example, when planting four seedlings on the left side and the center. The fertilizer is applied from the four feeding cases (47) on the left and the center, and the worker operates the clutch lever (126) to disengage the locking clutch of the case (121). Extension case (4
7) Any or all of... Can be arbitrarily selected to stop fertilization irrespective of seedling planting.

Further, as shown in FIGS. 8, 9, 10 and 12, the left and right support legs (131) and (131) are fixed to the upper ends of the left and right elevating rails (56) and (56) on the front side.
The pipe frame (132) is fixed on both sides between the upper ends of the left and right supporting legs (131) and (131), and the pipe frame (132) is horizontally laid on the front side of the fertilizer application hoppers (46) and (46) for the two central rows. The left and right lifting rails (56) and (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 the refill fertilizer bag (134) is placed on the upper surface of the rear center, the forward tilt of the fertilizer bag (134) is prevented by the driver's seat (13), and the upper pipe frame (right and left extending substantially in parallel). 132) and the lower handle (61) prevent the fertilizer bag (134) from tilting backward. Further, the middle of the round bar-shaped hose guide body (133) is extended below the transfer hoses (49) (49) for one unit and the both ends of the hose guide body (133) are connected to the transfer hoses (49). It is bent upward and fixed to the side of the mounting plate (79) (79), and the downward and leftward and rightward bending of the transfer hose (49) near the joint (76) connection part is restricted by the hose guide body (133). The connecting end of the transfer hose (49) is extended and supported in the direction of extension of the joint (76).
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) outside the mounting position of the fertilizer feeding case (47) (47) for the center two rows.
The left and right bearing plates (58) and (58) are fixed by welding, and both ends of the front frame (60) and the rear frame (99) are integrally fixed by left and right side frames (135) and (135). Minute fertilizer feeding case (47)
(47) to the bearing plate (58) and the side frame (135)
It is attached to the front frame (60) and the rear frame (99) between the frames, and each of the rectangular frames (60) (99)
(135) is divided into three equal parts in the left-right direction by a bearing plate (58), and a fertilizer feeding case (47) for six rows is supported between the front and rear frames (60) and (99).

Further, as shown in FIGS. 1, 20, and 21, a fan case (137) in which a blower fan (136) is provided, and an intake port (138) and an exhaust port formed in the fan case (137). (139) and an electric fan motor (140) for rotating the blower fan (136).
Is provided in the blower (50). Further, the support frame (141) is fixed to the fan case (137), and the fulcrum frame (14) on the right end of the air tank (51) is fixed.
2) to the support frame (14) via the fulcrum shaft (143).
1) is rotatably connected around a vertical axis, and the blower (50) is movably attached to a storage position indicated by a solid line in FIG. 1 or a working position indicated by a virtual line. The storage position indicated by a solid line in FIG. And a connecting plate (145) (146) for detachably fixing with a bolt is fixed to an air tank (51) right end and an exhaust port of a fan case (137). (1
39), and the blower (50) is fixed to the working position indicated by the imaginary line in FIG. 1 by the connecting plates (145) and (146).

Further, the seedling table (1) of the planting section (15)
An extension rail (147) is provided at the end of the lower rail (18), which also serves as a seedling collecting plate, for supporting the 6) so as to be reciprocally slidable left and right, and an extension rail (147) is provided at the end of the lower rail (18). ) Is fixed, the outer surface of the blower (50) supported at the working position by fixing the connecting plates (145) and (146) is extended with the extension rail (14).
7) When extending from the end of the lower rail (18) at the end of the lower rail (18), when the rail is positioned on the inner side of the outer side by a predetermined width (L1) from the outer side end, and when shipping from a factory or moving to a remote place.
47) Remove, reduce the left and right width of the planting part (15),
The package is compact and the rails (18) and (147) are prevented from being damaged due to collision, etc. The blower (50) is supported at the storage position by locking the pin (144) during the non-working time. Is positioned on the inside of the machine by a predetermined width (L2) from the outside end of the lower rail (18).

As is apparent from the above description, a fertilizer application hopper (46) for containing fertilizer, a multi-row fertilizer feeding case (47) for feeding the fertilizer of the hopper (46), and a fertilizer delivery of the case (47). Air tank (5
1) and a blower (5) provided on one side of the air tank (51).
In the rice transplanter equipped with the blower (50), the blower (50) is installed within the left and right width of the planting section (15) in the working state for planting the seedlings, and the non-working planting section ( 15) The blower (50) is mounted so as to be housed within the left and right widths, and the blower (50) is installed in an air tank (5).
1), the piping between the blower (50) and the air tank (51) can be omitted, and the blower (50) is provided within the left and right width of the planting portion (15) in both the working state and the non-working state. ) Is supported and the blower (50)
To prevent collision damage.

Further, as shown in FIGS. 20 and 21, a plurality of grids (148) which are wide (the depth is deep and narrow) and are parallel in the direction of the flow of the intake air are connected to the intake port (13) of the blower (50).
8) A plurality of flat plate-like gratings (1
48) is integrally formed with a fan case (137) made of synthetic resin, and the lattice (14) is used to prevent a finger or foreign matter of an operator from entering the fan case (137) through the air inlet (138).
8) to prevent. Further, a plurality of grids (14) are arranged at substantially regular intervals in parallel with the flow direction of the suction air at the intake port (138).
8) are arranged side by side, and the intake air is rectified by each lattice (148)...
A spiral guide (149) is provided at an elbow-shaped corner communicating the horizontal suction portion of the shaft core of the blower fan (136), and the spiral guide (1) integrally formed with a fan case (137).
49) is opposed to the horizontal suction portion of the blower fan (136), and a vortex of air generated by the suction force of the blower fan (136) is smoothly generated by the swirl guide (149). A turbulence of air is prevented from being generated on the suction side, and the blowing efficiency is improved by reducing the resistance of air introduction to the blowing fan (136).

As described above, the fertilizer application hopper (46) for adding fertilizer, the multi-row fertilizer feeding case (47) for sending the fertilizer from the hopper (46), and the fertilizer for the case (47) (49) an air tank (51) for supplying blast for taking out the planting section (15),
In a rice transplanter provided with a blower (50) provided on one side of an air tank (51), an air inlet (13) of the blower (50) is provided.
8) is opened downward, and a grid (148) is integrally formed in a synthetic resin fan case of the blower (50), and the grid (1) is formed at substantially equal intervals in the intake port (138) in parallel with the air flow direction.
48) is provided. The downward opening of the intake port (138) prevents rainwater or the like from entering, and the intake port (13)
8) Eliminate inconveniences such as foreign substances being introduced into the apparatus, and introduce the air while rectifying the air by the lattice (148) for preventing the foreign substances from being sucked, thereby reducing the air suction resistance and improving the blowing function. In order to increase the amount of blown air or downsize the blower, the lattice (148) is formed integrally with the fan case with synthetic resin to simplify the structure and reduce the cost.

Further, as shown in FIG. 22, a seedling connecting wire (150) for turning off a main clutch (not shown) for disconnecting the output of the engine (2) is connected to the traveling speed change lever (2).
9), and by switching the lever (29) to the seedling joining position, the front and rear wheels (6) and (8) are stopped, and the planting section (15) is stopped. Seedlings are replenished to the seedling mounting table (16), and the switch (151) for turning off the electric fan motor (140) of the blower (50) is set to the traveling speed change lever (29).
Switch (151) is operated by switching the lever (29) to the seedling splicing position.
The fan motor (140) is turned off to stop the blower (50), thereby reducing noise during the seedling splicing operation and preventing unnecessary power consumption. After the seedling connection operation, the switch (151) is turned on by returning the traveling speed change lever (29) to the planting traveling position, and the fan motor (14) is turned on.
0) is turned on again, the blower (50) is restarted, the blower is restarted, and it is not necessary to stop the blower (50) by manual operation. Therefore, forget the restart operation of the blower (50) at the time of resuming work. Problems such as clogging of fertilizer can be eliminated.

[0033]

As is apparent from the above examples, the present invention provides a fertilizer application hopper (46) for adding fertilizer, and the hopper (4).
Multi-row fertilizer feeding case (4) for sending fertilizer of 6)
7) and the transfer hose (4)
9) In a rice transplanter provided with an air tank (51) for supplying air for carrying out the planting section (15) by the air tank (51) and a blower (50) provided on one side of the air tank (51), an intake port of the blower (50) (138) is opened downward, a lattice (148) is integrally formed in a synthetic resin fan case of the blower (50), and the lattice (148) is formed at substantially equal intervals in the intake port (138) in parallel with the air flow direction. With the downward opening of the intake port (138), it is possible to easily prevent intrusion of rainwater and the like, and it is possible to easily eliminate problems such as entry of foreign matter into the intake port and to prevent foreign matter from entering. The grid (148) prevents the intake air from being introduced while rectifying the intake air, reduces the air intake resistance and can easily improve the blower function, and increases the blower wind or reduces the size of the blower (50). It can be achieved and easy, also those which can be easily subjected to structural simplification and cost reduction by integrally forming a lattice (148) to the fan case of a synthetic resin.

[Brief description of the drawings]

FIG. 1 is an explanatory plan view of a blower unit.

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 the fertilizer application unit.

FIG. 7 is a rear view of the same.

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

FIG. 9 is a side view of a 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.

FIG. 14 is a plan view of a handle.

FIG. 15 is a rear view of the same.

FIG. 16 is a side view of the same.

FIG. 17 is a cross-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 blower.

FIG. 21 is an explanatory side view of the same.

FIG. 22 is an explanatory rear view of the traveling speed change lever.

[Explanation of symbols]

 (15) Planting area (46) Fertilizer application hopper (47) Fertilizer feeding case (49) Transport hose (50) Blower (51) Air tank (138) Inlet (148) Grid

Continued on the front page (72) Inventor Toshiaki Kasahara 1-32 Chaya-cho, Kita-ku, Osaka Yanmar Agricultural Machinery Co., Ltd.

Claims (1)

[Claims] 1. A fertilizer application hopper for containing fertilizer, a multi-row fertilizer feeding case for sending out the fertilizer of the hopper, and an air tank for supplying air to the fertilizer of the case for transporting the fertilizer to a planting portion by a transport hose. In a rice transplanter having a blower provided on one side of an air tank, an intake port of the blower is opened downward, a lattice is formed integrally with a fan case made of synthetic resin of the blower, and the intake port is substantially parallel to the air flow direction. Rice transplanter characterized by having grids at intervals.