JP2001016942A - Rice transplanter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a rice tranplanter capable of eliminating a separate and independent transmission shaft as a conventional rice transplanter, making a compact constitution and reducing weight and a cost by integrally connecting feed output shafts. SOLUTION: This rice transplanter is equipped with a fertilizing apparatus 36 furnished with plural feed parts 38 side by side in the right and left direction at the rear of a traveling machine body. Feed input shafts 78 for driving each of the feed parts 38 are integrally connected. In the operation, feed clutches for connecting and disconnecting feed drive power to be transmitted from the feed output shafts 78 to the feed parts 38 can be installed at the sides of the feed parts 38. The feed parts 38 at the right and left sides can be foldably arranged. Clutches for folding can be laid between the central part and the feed input shafts 78 at the folding sides.

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 a seedling table and planting claws for continuously performing seedling planting operations, and more particularly to a rice transplanter for applying fertilizer to the side of a planting strip.

[0002]

For example, Japanese Patent Application Laid-Open No. 9-16 / 1997
In Japanese Patent No. 3821 and the like, a transmission shaft extending in the left-right direction along the delivery portion is disposed behind a plurality of delivery portions arranged in the left-right direction, and the transmission shaft branches from the transmission shaft to the input shaft of each delivery portion. There is a means for transmitting the feeding drive force. However, such conventional means not only requires a long transmission shaft (many bearings are required), a transmission member for connecting the transmission shaft and each input shaft, but also complicates the structure. Is provided in the space between the feeding sections, so that a certain amount of space is required between the feeding sections, and there is a disadvantage that a compact fertilizer apparatus having a small space between the feeding sections cannot be installed.

[0003]

SUMMARY OF THE INVENTION Accordingly, the present invention provides a rice transplanter provided with a fertilizer device having a plurality of dispensing portions juxtaposed in the left-right direction at a rear portion of a traveling machine body, wherein a dispensing input shaft for driving each dispensing portion is integrated. , And eliminates the need for a separate transmission shaft as in the prior art. For example, the drive force from the PTO shaft of the machine is directly transmitted to the feeding input shaft, and each feeding shaft is reduced by means of a compact structure (weight and cost reduction). It drives the unit.

[0004] Further, a feed clutch for turning on / off a feed driving force transmitted from the feed input shaft to each feed portion is provided on a side of each feed portion, and each feed portion is provided without increasing the overall height of the feed portion. A feeding clutch is installed in an empty space between them, and is effectively used as a stop clutch for each line or a unit clutch for every two lines.

Further, the left and right outer feeding portions are provided so as to be freely foldable, and a folding clutch is interposed between the center side and the feeding input shaft on the folding side. In the structure in which the one or two feeding portions are freely foldable, the drive structure is particularly remarkably simplified as compared with the conventional structure, and the structure of the fertilizer applicator in the folding structure is made compact.

[0006]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a side view of a riding rice transplanter, and FIG. 2 is a plan view of the same. In the drawing, (1) is a traveling vehicle which is a traveling body on which an operator rides, and an engine (2) is mounted in front of a body frame (3). A front axle case (5) is supported in front of the transmission case (4) via a front axle case (5), and a rear axle case (7) is connected to the rear of the transmission case (4). The rear axle case (7) supports a paddy field traveling rear wheel (8) as a wheel. A spare seedling mount (10) is attached to both sides of the hood (9) covering the engine (2) and the like, and the step (12) is a body cover on which an operator rides via a footrest (11). A driver's seat (13) is mounted above the step (12), covering the transmission case (4) and the like, and a steering handle (14) is provided in front of the driver's seat (13) and at the rear of the hood (9).

[0007] In the figure, reference numeral (15) denotes a planting portion provided with a seedling mounting table (16) for planting six rows and a plurality of planting claws (17). Forward tilting seedling platform (1
6) is supported on a planting case (20) via a lower rail (18) and a guide rail (19) so as to be reciprocally slidable right and left, and a rotary case (21) is rotated at a constant speed in one direction. A pair of claw cases (22) and (22) are supported at the case (20) and symmetrically positioned around the rotation axis of the case (21), and the claw case (22) is provided.
(22) Attach the planting claws (17) and (17) to the tip. A 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.

In the figure, (29) is a main shift lever, (3)
0) is a sub-shift lever for planting elevating and working travel shifting, and (3)
1) is a planting sensitivity setting device, (32) is a main clutch pedal, (33) and (33) are left and right brake pedals, and (34).
Is a two-floor leveling center float, (35) is a two-floor leveling side float, and (36) is a six-row fertilizer applicator.

Further, as shown in FIGS. 3 to 6, a fertilizer application hopper (37) for feeding fertilizer, a fertilizer feeding case (38) which is a fertilizer feeding section for supplying a fixed amount of fertilizer, and a float (3).
4) A turbo blower type blower (41) for discharging fertilizer through a flexible transfer hose (40) to the side striation groove device (39) of (35), and a cylindrical air tank (42).
Are provided in the fertilizer applicator (36), a blower (41) is attached to the right end of the air tank (42), and six sets of six fertilizer feeding cases (38) are arranged above the air tank (42). ing.

The left and right base frames (45) and (45) are provided on both sides of a horizontal frame (44) extending between upper ends of the left and right supports (43) at the rear end of the body frame (3) via base mounting plates (45a). And a fertilizer applicator (36) is provided via the base frame (45), which extends substantially horizontally in the front-rear direction, and a side stay () is provided between the rear end of the base frame (45) and the body frame (3). The fertilizer applicator (36) is supported by a fertilizer application frame (47) which is erected on the left and right base frames (45) (45).

The upper front side of the left and right fertilizer application frame (47) is integrally fixed by a round pipe-shaped horizontal frame (48), and the upper rear side is fixed by a square pipe-shaped horizontal frame (49). 48) (49) fixedly supports six sets of the feeding case (38), and the feeding case (3).
The horizontally long air tank (42) is detachably fixed to the lower front side of 8).

As shown in FIG. 8, the feeding case (38)
The lower outlet (51) of the hopper (37) is fitted into the inlet (50) on the front side of the upper surface of the hopper, and the outlet (52) is formed on the lower side of the front surface of the feeding case (38). The outlet (52) is closed by (53).

A bottom cover (54) is detachably fixed to the lower surface of the feeding case (38), and an outlet (55) is formed at the lower surface of the hard synthetic resin bottom lid (54) serving as a feeding portion.
A joint pipe (56) made of a soft synthetic resin for fitting a front end to an air tank (42) is provided, and a front end of a hose joint (57) made of a hard synthetic resin is provided at a rear end of the pipe (56). In addition to being detachably fitted, the transfer hose (40) is fitted to the rear end of the joint (57), and the blowing of the blower (41) is performed by an air tank (42).
From the pipe (56) ... and the hose (40), and from the outlet (55) of the bottom cover (54) through the joint (5).
7) The fertilizer that falls in the middle is moved to the transfer hose (40). The inlet (58) is formed upward and open in the middle of the joint (57) forming the T-shaped flange, and the outlet of the bottom lid (54) is formed. A fitting cap (59) is fixed to (55), the cap (59) is detachably fitted to the outer wall of the inlet (58), and the outlet (55) is connected to the inlet (58).

Furthermore, an inlet plate (61) having an inlet (60) and a plurality of substantially square outlets (6) on the same circumference.
2) A feeding plate (63), which is a feeding roll having ..., and an outlet plate (65) having a discharge port (64), and each plate (61) (63) (65) made of a substantially circular flat plate is fed. A multi-layer arrangement is provided between the case (38) and the bottom cover (54), and a feeding shaft (66) is rotatably supported on the feeding case (38) substantially vertically so as to be rotatable. ) (65), the lower end side of the feeding shaft (66) penetrates through the central portion of the inlet plate (6).
1) and the outlet plate (65) are locked to the feeding case (38), and a spring (67) is elastically pressed from below on the lower surface of the outlet plate (65) to feed each shaft (61) (65). 66), the feeding plate (63) is engaged with the feeding shaft (66), and the feeding plate (63) is moved by the feeding shaft (66).
Is forcibly rotated so that the inlet (60) and the outlet (6)
2) The fertilizer that has entered is moved to the outlet (64) and dropped toward the outlet (55).

Further, a fertilizer cleaning member (68) for preventing clogging of fertilizer is provided at the junction of the outlet (55) of the bottom cover (54) and the inlet (58) of the hose joint (57). Bend the lower half of the thin linear body into a substantially U-shape,
The upper end of the linear body is connected via a torsion spring to a spring holder (69) engaged with and held at the lower end of the feeding shaft (66) while being substantially in contact with the inner wall surfaces of the outlet (55) and the inlet (58). The swinging member (68) is integrally rotated when the feeding shaft (66) is rotated by swinging the swinging shaft (66) so as to scrape off fertilizer powder and the like adhering to the inner wall surfaces of the outlet (55) and the inlet (58). It is configured to prevent clogging with fertilizer.

As shown in FIGS. 4 and 7, a PTO shaft (7) for transmitting the output of the engine (2) to the planting portion (15).
0) is extended rearward from the transmission case (4), the bearing case (71) is welded or bolted to the left support (43), and the input shaft (72) of the bearing case (71) is connected to the PTO. Chain (7) in the middle of shaft (70)
The vertical drive shaft (76) is interlocked and connected to the rear end of the output shaft (74) of the bearing case (71) substantially vertically via a pair of bevel gears (75).

As shown in FIG. 4, the vertical drive shaft (76) faces the upper end between the second and third sets of the feeding cases (38) from the left side in rear view, and each of the feeding shafts (66). ) To the left and right longitudinally extending input shaft (78), which is interlockingly connected via a pair of bevel gears (77), to the vertical drive shaft (7).
The upper end of 6) is interlocked and connected via a pair of bevel gears (79), and the feed shaft (66) is rotated via the input shaft (78) by the rotation of the PTO shaft (70) to feed the fertilizer. It is configured as follows.

Furthermore, a ring-cone continuously variable transmission (80) is interposed between the vertical drive shaft (76), and the continuously variable transmission (80) is connected to the lower drive shaft (76a) on the input side. The input disk (81) provided and the upper drive shaft (76
b) an output disk (82) and two plates (81)
A plurality of planetary cones (83) disposed between (82);
And a shift ring (84) frictionally engaged with the conical surface of the planetary cone (83). The shifter (86) is provided on the adjusting screw shaft (86) of the shift case (85) provided on the left outside rear of the left support (43). 87), the transmission ring (84) is engaged and connected, and the rotation of the adjusting screw shaft (86) moves the transmission ring (84) via the shifter (86) to cause the cone of the planetary cone (83) to move. By changing the frictional engagement position of the surface in the vertical direction, the rotation taken out to the output side drive shaft (76b) is continuously variable, and the amount of fertilizer fed from the feeding case (38) is appropriately adjusted. It is configured to adjust.

A bevel gear (77) which idles and supports the input shaft (78) and a clutch body (88) which is slidable in the axial direction by one body in the rotation direction of the input shaft (77). A hopper (37) is provided on the left side of each feeding case (38).
The clutch case (38a) is integrally formed using the space between the clutch cases (38a), and the clutch (89) is provided in the clutch case (38a). ) And the on / off (unit clutch) of the two-row feeding shaft (66).

As shown in FIG. 10, the clutch body (8
The clutch operation groove (88a) of (8) engages two operation pins (90) and (91) for unit and streak, and is formed to face the front and rear sides of the clutch case (38a). The unit clutch lever (94) and the cylindrical portion (94a) (95a) at the base end of the locking clutch lever (95) are rotatably fitted into the fitting holes (92) (93), and the operation pin (90) (91) is a cylindrical part (94a)
(95a) Projecting to the end face, each two-line feeding case (38)
The unit clutch levers (94) are connected to each other by a clutch wire (96), and the clutch wire (96) is connected to the unit clutch operation lever (97) for the pair of two sets on the back side of the seedling mounting table (16) as shown in FIG. ), And the wire (9) is pressed against the return spring (98) by the operation lever (97).
When pulling 6), the clutch (89) is disengaged and the corresponding two fertilizer applications are stopped.

Further, by directly rotating each locking clutch lever (95) provided on the side opposite to the operation lever (97) to release the connection of the clutch (89), each of the locking clutch levers (95) is released. It is configured to stop fertilization alone.

Incidentally, the clutch (89) can be formed as a safety clutch which has a clutch surface formed into a tapered surface, and is automatically disengaged when overloaded.

In this way, the drive force from the PTO shaft (70) is directly transmitted to the feed input shaft (78) integrally connected in the left-right direction via the vertical drive shaft (76), and a separate intermediate transmission is provided. Since the installation of the shaft and the like is unnecessary, the number of parts can be reduced, the weight and cost can be reduced, the configuration can be made compact, and the empty space between the feeding cases (38) can be used. Extension case (3
8) A clutch case (38a) is integrally provided on the left side of the feeding case (38) without increasing the total height of the case (38). Can be easily stopped, and this workability can be improved.

As shown in FIGS. 3 to 6, the uppermost part of the rear wheel (8) and the bottom cover (54) are wrapped in a side view to reduce the overall height of the fertilizer (36). Then, the center of the rear wheel (8) is shifted from the center of the left and right outermost extension case (38) to the inside of the length of approximately 1/2 of the width between the planting strips, and the rear wheel (8) is centered on the left and right rear wheels (8). The left and right outermost sides and the inner feeding case (38) are substantially equally distributed on the left and right sides of the wheel (8), and the rear wheel (8) is inserted into the space between the adjacent lower-bottomed bottom lids (54). The fertilizer applicator (36) having a low overall height is formed so as to accommodate the uppermost portion to stabilize the machine body, and the rear seedling table (1) on the step (12) is set.
6) It is configured to facilitate the work when the seedlings are connected or when the fertilizer application hopper (37) is supplied with fertilizer. When the installation height of the fertilizer hopper (37) is made to be the conventional structure, the capacity of the fertilizer hopper (37) is increased by lowering the feeding case (38).

As shown in FIGS. 11 to 13, a fertilizer embedding chute (99) is fixed to the rear part of the groove generator (39) fixed to the floats (34, 35), and the rear view is opened. Gate-shaped chute (99) Boots (10
The fertilizer from the hose (40) is dropped by the guide of the chute (99) into the inside of the groove of the rice field formed by the groove generator (39) by connecting the transfer hose (40) via the (0). Grooves on the paddy field are back-filled with the soil cover plate (101) at the rear end of the floats (34) (35), and the planting claws (17)
The fertilizer is buried in the side of each row of seedlings to be planted by the floats (34) and (35) of the shoot (99).
Behind the center side inner plate (99a), the water flow prevention plate (10
2) is extended, and the prevention plates (10) are attached to the edges of the horizontal peripheral edges (34a) (35a) at the lower rear part of the floats (34) (35).
2) The fertilizer that has been fertilized is floated (34).
(35) Float peripheral part (34a) with water flow from outside
(35a) and the floats (34), (35) are configured to be prevented from climbing on the upper surface by the prevention plate (102).

As shown in FIG.
Of the water flow prevention plate (102) is attached to the inner plate (99a) of the above through a fulcrum shaft (103) and an adjustment bolt (104) so that the height of the water flow prevention plate (102) can be adjusted freely. When (102) is deep (low) and hard or when the water depth is deep, the mounting height of the preventing plate (102) is adjusted to the surface condition of the field by adjusting the preventing plate (102) to be shallow (high). It is configured to be free.

FIGS. 15 to 17 show a fertilizer applicator (36) for a 10-row fertilizer in which two fertilizer hoppers (37) and a feeding case (38) on the left and right sides are folded forward. This shows a configuration in which the entire left and right widths of the machine (36) can be reduced. Like the above-mentioned six-row fertilizer (36), a drive input shaft (78) integrated in the left and right direction is driven from the PTO shaft (70). A force is directly transmitted via the vertical drive shaft (76), and a flat gear-shaped fixed claw (105) and a movable claw are provided between the input shaft (78a) on the center side and the input shaft (78b) on the folding side. (106) and the folding claw clutch (10
7), the two fertilizer hoppers (3
7) When the front case (38) or the like is folded forward, the coupling between the fixed claw (105) and the movable claw (106) is automatically released to disengage the claw clutch (107).

The center horizontal frame (48) (49)
The outermost plates (108) at both ends and the inner plates (109) at the inner ends of the folding side frames (48) and (49) are 10
When the strip is used, the fertilizer application hopper (37) and the feeding case (38) are arranged side by side in a horizontal line in a horizontal direction. Around the inner plate (10
9) is rotated by approximately 180 degrees, and the fertilizer hopper (3
7) and a folding side fertilizer application hopper (37) and a feeding case (38) are folded in a substantially parallel state in front of the feeding case (38). The clutch case (111) to be fixed is supported on the outermost plate (108), and the feeding input shaft (76)
The driving connection structure of the folding part is simplified.

[0029]

As is apparent from the above embodiments, the present invention relates to a rice transplanter provided with a fertilizer device (36) in which a plurality of feeding portions (38) are juxtaposed in the left-right direction at the rear of the traveling machine (1). A feed input shaft (7) for driving each feed portion (38).
8) are integrally connected, so that a separate transmission shaft as in the prior art is not required, and for example, the PTO shaft (7
The drive force from (0) is directly transmitted to the feed input shaft (78), and each feed portion (38) can be driven by means of a compact configuration (weight and cost reduction).

A delivery clutch (89) for turning on / off a delivery drive force transmitted from the delivery input shaft (78) to each delivery portion (38) is provided on a side of each delivery portion (38). Therefore, without increasing the overall height of the feeding portion (38),
In the empty space between each feeding section (38), the feeding clutch (8
9) can be effectively used as a stop clutch for each line or a unit clutch for every two lines.

Further, the left and right outer extension portions (38) are provided so as to be freely foldable, and a folding clutch (107) is interposed between the center side and the extension side extension input shaft (78). One or two outer feed sections (38) on the left and right sides of the fertilizer device (36) for 8 or 10 rows
In this structure, the drive structure can be made considerably simpler than the conventional structure, and the structure of the fertilizer applicator (36) in the folded structure can be made compact.

[Brief description of the drawings]

FIG. 1 is an overall side view of a rice transplanter.

FIG. 2 is an overall plan view of the rice transplanter.

FIG. 3 is a side view of the planting section.

FIG. 4 is a rear view of the fertilizer applicator.

FIG. 5 is a plan view of the fertilizer applicator.

FIG. 6 is a side view of the fertilizer applicator.

FIG. 7 is an explanatory view of a fertilizer drive unit. .

FIG. 8 is an explanatory sectional view of the fertilizer applicator.

FIG. 9 is an explanatory rear view of the feeding section.

FIG. 10 is an explanatory view of a streak and a unit clutch lever portion.

FIG. 11 is an explanatory side view of the groove generator.

FIG. 12 is an explanatory plan view of a groove generator mounting portion.

FIG. 13 is an explanatory rear view of a groove generator mounting portion.

FIG. 14 is an explanatory diagram of adjusting the mounting height of the water flow prevention plate.

FIG. 15 is an explanatory plan view showing the folding of the 10-row fertilizer.

FIG. 16 is an explanatory rear view of the 10-row fertilizer applicator.

FIG. 17 is an explanatory view of a folding clutch unit.

[Explanation of symbols]

 (1) Traveling vehicle (traveling body) (36) Fertilizer (fertilizer) (38) Feeding case (feeding part) (78) Feeding input shaft (89) Feeding clutch (107) Folding clutch

 ────────────────────────────────────────────────── ─── Continued on front page F term (reference) 2B041 AA02 AB05 AC06 BA08 2B052 BC05 BC08 BC16 DB07 DB08 EA02 EA15 EB02 EC03 EC07 ED08 2B060 AA02 BA04 BA07 BA09 BB03 BB06 BB07 BB08 BB10 CA01 CA03 CA04

Claims (3)

[Claims] 1. A rice transplanter provided with a fertilizer applicator for arranging a plurality of feeding portions in a lateral direction in a rear portion of a traveling machine body, wherein a feeding input shaft for driving each feeding portion is integrally connected. Rice transplanter. 2. The rice transplanter according to claim 1, wherein a feed clutch for turning on / off a feed drive force transmitted from the feed input shaft to each feed portion is provided on a side of each feed portion. 3. The rice transplanter according to claim 1, wherein the left and right outer feeding portions are provided so as to be freely foldable, and a folding clutch is interposed between the feeding input shaft on the center side and the feeding input shaft on the folding side.