JP3328774B2 - Rice transplanter - Google Patents

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 mounting table and planting claws for continuously performing seedling planting operations and for applying fertilizer to the side of a planting strip.

[0002]

Conventionally, Japanese Unexamined Patent Publication No. 5-27 is disclosed.
As disclosed in Japanese Patent No. 6818, there is a technique for carrying out fertilization by conveying fertilizer in a fertilizer hopper by blowing air from a blower. However, an air tank for air supply is formed of a rigid iron pipe, and a blower is used by using an air tank. It is not possible to reduce the weight of the air tank easily by supporting
There is a problem that simplification of a fertilizer application part and weight reduction cannot be easily achieved.

[0003]

SUMMARY OF THE INVENTION Accordingly, the present invention provides a transport hose for mounting a fertilizer on a traveling vehicle and sending fertilizer from the fertilizer to the planting section, and an air tank for supplying a transport wind to the transport hose. In the rice transplanter, the horizontal frame and the horizontal
Form the frame with the left and right bearing plates fixed to the frame
In addition, the resin air tank is detachably fixed to the left and right bearing plates, and the lightweight resin air tank is detachably fixed so that the weight and simplification of the fertilizer application part can be easily reduced. .

[0004]

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 thereof. In the drawing, (1) shows a traveling vehicle on which an operator rides, and an engine (2) is mounted above a front portion of a body frame (3). A front paddle traveling front wheel (6) is supported in front of the transmission case (4) via a front axle case (5), and a rear axle case (7) is connected to a rear portion of the gear transmission case (4). The rear axle case (7) supports a paddy field traveling rear wheel (8). Then, a spare seedling mounting table (10) is attached to both sides of the hood (9) covering the engine (2) and the like, and a step (11).
The transmission case (4) and the like are covered by a vehicle body cover (12) on which an operator rides, and a driver's seat (13) is mounted above the vehicle body cover (12), and the driver's seat (13) is provided in front of the driver's seat (13). A steering handle (14) is provided at the rear of the hood (9).

[0005] In the figure, reference numeral (15) denotes a planting section provided with a seedling mounting table (16) for eight-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.

[0006] 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 center float for two-row equalization, (35) is a side float for two-row equalization, and (36) is an eight-row side fertilizer.

Further, as shown in FIGS. 3 and 4, a fertilizer application hopper (37) for adding fertilizer, a fertilizer feeding case (38) which is a fertilizer feeding section for quantitatively feeding 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 an air tank (42) which is a cylindrical air supply pipe. ) Is provided in the fertilizer application section (36), a blower (41) is attached to the right end of the air tank (42), and eight sets of fertilizer feeding cases (38) for eight rows are arranged above the air tank (42). Let me.

Further, as shown in FIGS. 5, 6, and 9, a horizontal frame (44) extending between upper ends of left and right supports (43) at the rear end of the body frame (3) and left and right base frames (45) on both sides. (45) is attached, and the fertilizer application section (3) is interposed through the base frame (45) which is laid substantially horizontally in the front-rear direction.
6), a side stay (46) is connected between the rear end of the base frame (45) and the vehicle body frame (3), and a round pipe-shaped front and rear lateral frame fixed to the front and rear of the base frame (45). Left and right bearing plates (49) and (50) are fixed to both ends of (47) and (48).

The upper front sides of the left and right bearing plates (49) and (50) are integrally fixed by a round pipe-shaped horizontal frame (51), and the upper rear side is integrally fixed by a square pipe-shaped horizontal frame (52). Four pipe frames (47) (48) in directions
(51) (52) and the left and right bearing plates (49) and (50) form a rigid box-shaped frame frame (53), and eight sets of case front and rear brackets are provided on the horizontal frames (51) and (52). (54) and (55) are fixed, and 8
The front side and the rear side of the set feeding case (38) are fixed to the front and rear case brackets (54) and (55) by bolts.

As shown in FIGS. 10 and 11, the resin air tank (42) is detachably fixed between the front sides of the left and right bearing plates (49) and (50), and is fixed to the right end of the tank (42). A blower (41) to be connected is supported by a base (56) fixedly mounted on the right end of the frame (47) so as to be foldable forward through a pivot (57) and a rotating frame (58). The air tank (42) has a flange (42a) of a stopper bonded and fixed to the right end inserted into the hole (50a) of the right bearing plate (50), and the left end inserted through the hole (49a) of the left bearing plate (49). The left end of the air tank (42) is packed with a packing (61) to the lid (60), which protrudes outside the bearing plate (49) and is fixed to the outer wall of the bearing plate (49) with bolts (59). And fixed in a hermetically closed state, and the blower ( 1) and is configured to perform separate secure attachment of lightweight air tank with resinous (42).

As is apparent from the above description, a transport hose (40) for mounting the fertilizer section (36) on the traveling vehicle (1) and sending fertilizer from the fertilizer section (36) to the planting section (15); An air tank (4) for supplying a transfer wind to the transfer hose (40)
In the rice transplanter provided with 2), the resin air tank (42) is detachably provided on the bearing plates (49) and (50) which are the fertilizer applicator frames of the fertilizer section (36). The lightweight air tank (42) reduces the weight of the fertilizer application part (36), simplifies the mounting structure of the air tank (42), and prevents rusting and corrosion of the air tank (42) due to the adhesion of fertilizer. The defect has been eliminated.

As shown in FIG. 7, the feeding case (38)
The lower outlet (63) of the hopper (37) is fitted into the inlet (62) on the front side of the upper surface of the hopper, and the outlet (64) is formed on the lower side of the front surface of the feeding case (38). The outlet (64) is closed by (65).

In addition, a bottom cover (66) is detachably fixed to the lower surface of the feeding case (38), and an outlet (67) is formed on the lower surface of the bottom cover (66) made of hard synthetic resin. (42) is provided with a joining pipe (68) made of a soft synthetic resin for fitting the front end thereof,
8) Hose joint made of hard synthetic resin at the rear end (69)
The front end is detachably fitted, the transfer hose (40) is fitted to the rear end of the joint (69), and the blower (41) blows air from the air tank (42) to each pipe (68). The joint (69) forming a T-shaped flange by blowing the fertilizer into the joint (69) from the outlet (67) of the bottom lid (66) and moving the fertilizer falling in the middle of the joint (69) to the transfer hose (40).
An inlet (70) is formed upward and open in the middle, and the bottom lid (6) is formed.
The fitting cap (71) is fixed to the outlet (67) of (6), the cap (71) is detachably fitted to the outer wall of the inlet (70), and the outlet (67) is connected to the inlet (70). And the mounting plate (7) is attached to the air tank (42).
2) is integrally fixed, and the joint (69) is fixed to the mounting plate (72) by bolting.

An intake (73) and an outlet (74)
, A feed plate (77) which is a feed roll having a plurality of substantially square feed outlets (76) on the same circumference, and an outlet plate (79) having a discharge port (78). And each plate (75) (77) (7)
9) is arranged in a multilayered manner between the feeding case (38) and the bottom cover (66), and the feeding shaft (8) is attached to the feeding case (38).
0) is rotatably supported substantially vertically, and each plate (75) (7)
7) The lower end of the feed shaft (80) is made to penetrate the center of (79), and the spring (81) is resiliently pressed from below on the lower surface of the outlet plate (79), and each plate (75) (77) (79) is pressed. The plate (75), (77), (79) is supported by the feeding shaft (80) so as to be able to be pulled out downward, and the closing lever is used to pull out the plates (75), (77), (79).
8) and between the bottom cover (66) and the entrance plate (7
5) and the outlet plate (79) are locked to the feeding case (38), and the feeding shaft (80) rotates freely with respect to each plate (75) (79), and the feeding plate (77) is connected to the feeding shaft ( 80), the feed plate (77) is forcibly rotated by the feed shaft (80), and the feed port (76) is moved from the inlet (73).
The fertilizer that has entered is moved to the outlet (78) and
7) It is configured to drop in the direction.

As shown in FIGS. 3 and 8, a drive shaft (83) for inputting the output of the engine (2) via a PTO shaft (82) is provided on a left support (43). A crank plate (84) is provided at the rear end. In addition, the frame frame (53) supports a single adjusting member, a feed amount adjusting lever (87), via a bracket (85) and a shaft (86), and adjusts via a support shaft (88). A link (89) and a fulcrum link (90),
The adjusting link (89) is connected to the screw portion (87a) of the lever (87), the adjusting fulcrum (91) is attached to the fulcrum link (90), and the driving arm (9) is attached to the fulcrum (91).
2) is supported.

Further, a feed drive shaft (94) is rotatably supported on the horizontal frame (52) via a bearing plate (93), and a swing arm (95) is fixed to the drive shaft (94). A swing arm (95) is connected to the drive arm (92) via a telescoping rod (96) having an adjustable length, and the crank plate (84) is connected to the drive arm (92) by an input rod (97). Through the PTO shaft (8
The driving force from 2) is transmitted to the feeding drive shaft (94).

Further, a one-way clutch (99) of a clutch shaft (98) connected to the feed shaft (80) is connected to a feed drive shaft (94) via a link rod (100) and a link (101). A clutch arm (102) of a unit clutch (not shown) for intermittently rotating the clutch shaft (98) in one direction and connecting the feed shaft (80) to the clutch shaft (98) in a freely disconnectable manner; It is connected via a clutch wire to a planting streak stopping unit clutch lever (103) provided on the upper rear surface of the seedling table (16) of the planting section (15).

As shown in FIGS. 12 and 13, a dog clutch type fertilizing clutch (104) for stopping rotation of the feed drive shaft (94) is provided.
4) a stationary clutch (105) that is idlely supported by the swing shaft (95) and is integrally connected to the swing arm (95);
The movable-side clutch (108) which is supported slidably in the axial direction by the polygonal portion (94a) of 4) and engages and disengages the clutch pawl (107) with the pawl hole (106) of the fixed-side clutch (105). ) And the movable clutch (108) is slid to operate the claw hole (106) and the clutch claw (10).
7) clutch lever (109) for engaging and disengaging
And a detection piece (110) of the movable clutch (108).
And a clutch disengagement detection switch (111) for detecting the disengagement of the fertilizer application clutch (104) by contact with the fertilizer application unit (36). It is configured to stop driving.

Thus, the four horizontal frames (47) (48) (51) (52) between the left and right bearing plates (49) (50).
The bottom cover (66), the air tank (42), the joint (69) and the like of the feeding case (38) are safely and stably disposed in a polygonal space surrounded by the rigidity with good rigidity.
It stabilizes the amount of fertilizer applied to each strip and also prevents damage due to collision. Also, three horizontal frames (48)
The bottom cover (66) and the air tank (42) / joint (69) are arranged in a triangular space defined by (51), (52), (47), (48), and (51), respectively, and are held. To make it more effective.

As shown by the phantom line in FIG. 4, the left and right middle bearing plates (49a) are provided between the left and right bearing plates (49) and (50).
An appropriate number of middle bearing plates such as (50a) may be provided as necessary.

FIG. 14 shows the fertilizer application hopper (3
7 shows a configuration in which the rectangular base (1) is fixed to the left and right base frames (45) and (45).
12) four lifting screws (1) through each bearing (113).
14) is rotatably erected, and a chain (116) is wound between the sprockets (115) fixed to these four elevating screws (114).
Is connected to a lifting handle (118) via a set of worm gears (117).
18) Four lifting screws (114) are provided so as to rotate in the same direction by the operation, and the feeding case (38) is provided.
The left and right elevating plates (119) and (119) are fixed to the horizontal frames (51) and (52) that support the unit, and the combined body (120) connected to the two left and right elevating screws (114) is connected to the left and right elevating plates. (119) The fertilizer hopper (37) is fixedly mounted on each of (119) and raised and lowered by the operation of the handle (118), and the removal and maintenance and inspection of the residual fertilizer in the fertilizer hopper (37) at the time of ascent are performed. It is configured to be easy.

FIG. 15 shows a fertilizer application hopper (37).
The upper side wall is formed as a bellows type movable wall (120), and the height of the tank is increased by changing the height to reduce the number of fertilizer replenishments during fertilization work.
7) A fertilizer remaining amount alarm sensor (121) is installed on the lower fixed side wall (120a), and the machine side or the hopper (3) is installed.
The upper end of the movable wall (120) is supported by a hopper lid (122) appropriately fixed to the fixed main body part of (7) via a mounting member (123) such as a pin or a bolt to maintain its position. .

FIGS. 16 and 17 show the left and right outermost hoppers (37) of the eight-row fertilizer application hopper (37).
a) is provided so as to be foldable forward to reduce the left and right width of the fertilizer application section (36), and shows a clutch arm (102) and a lever (103) of the left and right outermost unit clutches. Clutch wire (12
4) The outer receptacle (125) is fixed to the movable frame (52a) on the folding side, and the outermost hoppers (37a) on the left and right sides as compared with the conventional case where the outer receptacle (125) is provided on the fixed side of the machine. ) When folded, the coupling wire (124a) connected to the clutch arm (102) at the tip of the clutch wire (124) is easily folded without removing it each time.

As is clear from the above, the hopper (37)
A plurality of horizontal frames (47), (48), (51) extending in the left and right lateral direction in the agricultural work device for carrying out fertilizer and pest control by transporting the fertilizer inside by the air flow from the blower (41) and the air tank (42). ) And (52) are combined to form a frame (53), and the hopper (37) is supported by the frame (53). In addition to using a lightweight material such as resin for the air tank (42), the overall structure of the fertilizer (36) can be made more compact and lighter in weight.

Also, a plurality of horizontal frames (47) in side view
(48) The fertilizer feeding case (38) below the hopper (37) and the air tank (42) are arranged in a polygonal space surrounded by (51) and (52). The feeding case (38) and the air tank (42) are safely and stably held in the enclosed quadrangular space without causing a positional shift due to bending or the like in the mutual positional relationship, and the feeding amount of the fertilizer and the medicine is stabilized. Let it be maintained.

Further, three horizontal frames (4
8) The hopper (3) is placed in the space surrounded by (51) and (52).
7) The lower fertilizer feeding case (38) is disposed, and the feeding portion (safe and stable) is formed in a triangular space surrounded by the three horizontal frames (48), (51), and (52) without any warping and without any bending. 38) to improve fertilization accuracy.

[0027]

As is clear from the above embodiment, according to the present invention, the traveling vehicle (1) is provided with the fertilizer (36), and the fertilizer is sent from the fertilizer (36) to the planting section (15). In a rice transplanter provided with a transfer hose (40) and an air tank (42) for supplying a transfer wind to the transfer hose (40), a horizontal
Frames (51) (52) and horizontal frames (51) (5)
2) Fix the frame with the left and right bearing plates (49) and (50).
And a left and right bearing plate (49).
A resin air tank (42) is detachably fixed to (50), and is a lightweight resin air tank (42).
By detachably fixing the fertilizer, the weight and simplification of the fertilizer application part (36) can be easily reduced.

[Brief description of the drawings]

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

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

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

FIG. 4 is an explanatory rear view of a fertilizer application hopper.

FIG. 5 is an explanatory plan view of a fertilizer application hopper.

FIG. 6 is an explanatory side view of the fertilizer application hopper.

FIG. 7 is an explanatory sectional view of a fertilizer application section.

FIG. 8 is an explanatory diagram of a fertilizer driving unit.

FIG. 9 is an explanatory side view of the frame portion.

FIG. 10 is an explanatory plan view of a frame portion.

FIG. 11 is an explanatory view of mounting an air tank.

FIG. 12 is an explanatory view of a fertilizing clutch unit.

FIG. 13 is an explanatory perspective view of a fertilizing clutch unit.

FIG. 14 is an explanatory view showing an elevating structure of the fertilizer application unit.

FIG. 15 is an explanatory diagram showing a bellows structure of the fertilizer application hopper.

FIG. 16 is an explanatory plan view of a fertilizer applied in a folding structure.

FIG. 17 is an explanatory view of mounting a unit clutch wire portion.

[Explanation of symbols]

 (1) Traveling vehicle (15) Planting section (36) Fertilizer section (37) Hopper (38) Feeding case (41) Blower (42) Air tank (49) (50) Bearing plate (fertilizer applicator frame)

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int. Cl. ⁷ , DB name) A01C 11/00 302 A01C 15/00

Claims (1)

(57) [Claims] 1. A transport hose (40) for mounting a fertilizer section (36) on a traveling vehicle (1) and sending fertilizer from the fertilizer section (36) to a planting section (15). ) Is provided with an air tank (42) for supplying the conveying air to the horizontal frame (51) (52) and the horizontal frame (5).
1) Left and right bearing plates (49) (50) fixed to (52)
To form the frame (53), and the left and right bearing plates
(49) A rice transplanter characterized in that a resin air tank (42) is detachably fixed to (50) .