JPH09163823A - Transplanting unit for rice transplanter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent divided rails from deforming or damaging due to contact with the platform of a carrying truck and contains a line-drawing marker mounted to a bumper frame along the main body of a seedling platform. SOLUTION: In this planting unit of a rice transplanter, a seedling platform comprises the main body 16b at the center and divided right and left platforms 16a, 16a and these side platforms 16a, 16a are freely foldable to be contained inside the machine body. A lower rail 18 set to the lower end of the inclination of the seedling platform is divided into a main rail at the center and right and left separated rails 18a, 18b and the separated right and left rails are foldably connected through a folding fulcrum shaft to the main rail. The separated rail 18a is folded on the side face of the main body 16b of the seedling platform so that it is almost overlapped in the side view. At the same time, a line-drawing marker 87 is freely foldably connected through a rotatable fulcrum shaft to the outside of the transplanting case 20. A bumper frame 77 is folded over the upper face of the main body 16b of the seedling platform crossing with the separated rail 18a in the folded position.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a planting device for a rice transplanter in which the left and right outermost portions of the seedling placing table are folded inward to reduce the entire width of the seedling placing table.

[0002]

2. Description of the Related Art Heretofore, as disclosed in Japanese Patent Laid-Open No. 57-39708, there is a technique of folding left and right outer divided seedling mounts toward a seedling mount main body in the center of the machine.

[0003]

SUMMARY OF THE INVENTION In the above-mentioned prior art, when the divided seedling table is folded to reduce the left and right width of the seedling table, the left and right ends of the lower rail at the lower end of the seedling table tilt and the muscle drawing. There is a handling problem such as the need to remove the bumper frame in which the marker is provided up and down freely and to reduce the lateral width of the planting part.

[0004]

SUMMARY OF THE INVENTION However, according to the present invention, a rice transplanter is provided in which a center seedling table body and left and right divided seedling table bodies are provided on the seedling table, and the left and right divided seedling table bodies are freely foldable toward the inside of the machine body. In the planting device, the lower rail provided at the inclined lower end of the seedling mounting table is formed by a central rail body and left and right split rail bodies, and the split rail bodies are foldably connected to the rail body via a fulcrum shaft. Then, the split rail body is folded in a direction substantially overlapping with the side surface of the seedling mounting table body in a side view, and the bumper frame provided with the muscle pulling marker is freely foldable on the outside of the planting case machine through the pivot shaft. Connected to
The bumper frame is configured to be folded above the upper surface of the seedling table main body that intersects with the split rail body at the folding position.The split rail body is folded and stored along the side surface of the seedling table main body so that it can be used as a truck bed. When loading and transporting, the split rail body can easily prevent from being deformed and damaged by abutting against the truck bed or the like, and the bumper at the storage position can be folded up above the upper surface at the slanted lower end of the seedling stand body in a side view. Since the frame is projected, it is possible to store the muscle pulling marker provided on the bumper frame along the seedling mounting base body, and the side surfaces of the rail body and the planting claws in the vicinity can be easily protected by the bumper frame in the storage position. It is possible to easily prevent the rail body or the planting claws from directly contacting the transportation truck bed, and it is possible to easily perform the folding operation of the lower rail and the bumper frame. It is what could strive to facilitate such reduction and improvement in handling property at the time of transportation work using the truck bed.

[0005]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described in detail below with reference to the drawings. FIG. 1 is a front view of the seedling stand, FIG. 2 is an overall side view of the riding rice transplanter, and FIG. 3 is a plan view thereof. In the figure, (1) is a traveling vehicle on which an operator rides, and an engine (2 ) Is mounted on the mission case (4) so that the rear end of the vehicle body frame (3) is connected to the mission case (4).
A paddle traveling front wheel (6) is supported on both front sides of the transmission case via an axle case (5), and a paddy traveling rear wheel (8) is disposed on both rear sides of the transmission case (4) via a transmission case (7). To support. And the engine (2)
A spare seedling mounting table (10) is attached to both sides of the bonnet (9) to cover the transmission case (7) and the like by the vehicle body cover (12) forming the step (11), and the upper portion of the vehicle body cover (12) is covered. Attach the driver's seat (13) to
A steering handle (14) is provided at the rear of the hood (9) in front of the driver's seat (13).

Further, (15) in the figure is a planting section equipped with a seedling table (16) for planting 8 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. A pair of claw cases (22) (22) supported by the case (20) and provided symmetrically with respect to the rotation axis of the case (21) at the tips of the planting claws (17) (1).
7) Install. In addition, a fulcrum plate (2) is provided on the front side of the planting case (20) via a rolling fulcrum shaft (23).
4) is provided, the fulcrum plate (24) is connected to the rear side of the traveling vehicle (1) through a three-point link mechanism (27) including a top link (25) and a lower link (26), and the link mechanism ( Seedling 27) which is connected to an elevating cylinder (28) for raising and lowering the planting part (15) and drives the front and rear wheels (6) and (8) to move at a substantially constant speed and at the same time reciprocally slides left and right. One seedling worth of seedlings is taken out from the mounting table (16) by the planting claws (17), and the seedling planting operation is continuously performed.

[0007] In the figure, (29) is a traveling speed change lever,
(30) is a planting operation lever, (31) is a traveling clutch pedal, (32) and (32) are left and right brake pedals, and (3)
3) ... is a float for leveling the field, (34) is a planting part (1
5) It is a side strip fertilizer application provided at the rear.

As shown in FIGS. 4 to 6, the seedling placing table (16) is divided into left and right outermost one row of seedling placing portions to form left and right divided seedling placing bodies (16a). (16a) is provided on both left and right sides of the main body (16b) of the center seedling stand so as to be folded at approximately 90 degrees to the front lower side via a folding link mechanism (35).

The link mechanism (35) includes a left-right swinging first support shaft (36) which supports the linking mechanism (35) at two positions above and below the left and right outermost ribs of the seedling table body (16b). 1
The arm (37) and the first fulcrum shaft (36) attached to the first arm (37) in the direction perpendicular to the first fulcrum shaft (36) swings back and forth.
8) A second arm (39) swinging back and forth that is connected and supported via
And one end thereof is connected to the second arm (39) through a third swinging fulcrum shaft (40) which is parallel to the first fulcrum shaft (36) and the other end is divided into left and right split seedling mounts (16a). Bolt (4
1) via a drive transmission mechanism (44) to a single folding drive motor (43) fixedly provided on the back side of the seedling stand body (16b). The upper support arm (42) of the above is interlockingly connected.

As shown in FIG. 7, the transmission mechanism (44).
Is a rack gear case (45) fixed to the rear side of the main body (16b) of the seedling stand, and a vertical rack gear (46) for left-right folding.
a) (46b) is internally provided, and the drive motor (4
The rack gear (46a) is connected to the pinion gear (49) that is interlockingly connected to 3) via a pair of reduction gears (47) and (48).
The inner end sides of (46b) are coupled and connected, and wire fittings (5) fixed to the left and right upper support arms (42) are attached.
0a) and (50b) are provided with work posture holding springs (51) (5)
1) and the outer ends of the rack gears (46a) (46b) are connected through the left and right wires (52a) (52b), and the rack gears (46a) ( 46b) is moved inward to pull the wires (52a) (52b), the spring force of the spring (51) causes the seedling placing body (16a) to be placed on both left and right sides of the seedling placing body (16b). Press the body (16
While keeping the work posture by keeping it in the condition of b),
The left and right upper first arms (37) at the time of the folding work for loosening the wires (52a) (52b) by moving the rack gears (46a) (46b) outward by the reverse or positive drive of the motor (43). The left and right first arms (37) are rotated approximately 90 degrees laterally outward from the lower vertical state by the extension action force of the gas spring (53) provided between the seedling mounting table main body (16b) and these. The first arm (37) is approximately 90
And the second fulcrum shaft (38) above and below
When (38) is in a state of overlapping on one vertical line (R), the left and right seedling placing bodies (16a) are rotated by their own weight to fold downward.

As shown in FIG. 8, the seedling table frame (54) for guiding and supporting the upper guide rails (19) of the seedling table (16) is a lateral transmission case (20) of the planting case (20).
It is formed in a frame shape with a), and the transmission case (20
Left and right vertical frames (54a) (54a) having base ends fixed to the pedestal (55) of a), and the vertical frames (54a) (5).
4a) a horizontal frame (54b) that connects the upper ends of the 4a) and the case (20a) together with a square frame of the seedling mount frame (5).
4) and the central drive plant case (20)
b) and the horizontal frame (54b) between the vertical reinforcement frame (5
6) and a diagonal reinforcing frame (57) provided on a diagonal line between the lateral frame (54b) and the reinforcing frame (56), and a guide shoe (58) for fitting and guiding the guide rail (19). It is attached to the horizontal frame (54b).

The total width (D2) of the seedling mounting table frame (54) is smaller (D2) than the total width between the dividing positions of the seedling mounting table (16), that is, the total width (D1) of the seedling mounting table body (16b).
<D1) and the guide shoe (58)
The mounting dimension (D3) between the left and right outermost sides of the seedling stand base (16
The seedling placing table (16a) on the left and right is formed in front of the machine by forming the seedling placing table (16) in the lateral movement stroke (S) or more and smaller (D3 <D1-S) than the full width (D1) of b). The right and left sides of the frame (54) can be folded without any hindrance, and the guide rails (1) can be moved when the seedling table (16) is moved left and right.
It is configured so that the seedling table (16) can be smoothly moved laterally without the guide shoe (58) passing through the joint (19a) of 9).

As shown in FIGS. 9 and 10, the seedling table (1
6) Seedling vertical feed rollers (59) that vertically feed the above seedlings are provided at two positions in the vertical direction of the seedling placing table (16).
Roller shafts (60a) (6) of upper and lower rollers (59), which are vertical feed shafts, are provided with upper and lower support arms (42) (42) that are provided in stages and that support the divided seedling placing bodies (16a).
0b) seedling mounts (16a), which are respectively arranged in the vicinity positions.
The joint accuracy of the roller shafts (60a) and (60b) associated with the attachment and detachment is improved.

The vertical feed roller (59) is provided on the seedling table (1).
The lower roller shaft (60b) is provided with a vertical feed unit clutch (61) for stopping the driving of two lines of 6), and the driving force transmitted to the lower roller shaft (60b) is transmitted by two belts each. The upper roller shaft (60
It is provided so as to drive these rollers (59) by transmitting it to a), and the seedling table main body 16b and the divided seedling table 1
The roller shaft (60a) (60b) and the roller shaft 6a) are connected by a claw clutch (63). The claw clutch (6
3) is the roller shaft (60a) (60) of the main body (16b) side
a fixed clutch part (65a) having a meshing claw (64a) for positionally fixing to b), and a meshing claw which is removably attached to the roller shafts (60a) (60b) on the seedling placing body (16a) side via a pressing spring (66). Movable clutch portion (65b) having (64b) and roller shaft (60a) on the body (16b) side
And a guide (67) for joining, which is inserted and fixed in the shaft hole (67a) of (60b) and whose tip is engaged and inserted into the shaft hole (67b) of the roller shaft (60a) (60b) on the seedling placing body (16a) side. When the seedling mounting body (16a) is combined with the main body (16b) side, the claw clutch (63) is coupled with the guide (67) as a guide, and after the combination, the claw clutch (63) is caused by the spring force of the spring (66). ) Is configured to hold the bond. In this case, the connection holding force of the spring (66) is the spring (51) (for holding the posture of the wires (52a) (52b) when the seedling placing body (16a) is fixedly held on the main body (16b) side. The spring force is the same as that of 51). By providing the upper and lower support arms (42) and (42) for supporting the seedling placing body (16a) in the vicinity of the upper and lower roller shafts (60a) and (60b), the seedling placing base (16) is slightly deformed. Even if the clutch is distorted or distorted, the adverse effects of these are exerted on the claw clutch (63) to the maximum extent so that the clutch function is maintained well.

As shown in FIGS. 11 and 12, the seedling mat retainer (68) provided on the seedling placing table (16) is also formed separately, and the seedling placing portion of the seedling placing body (16a) and the main body (16b) is combined. Fixing bracket (70) on the stand ribs (69a) (69b)
And the columns (72a) (72) via the column receivers (71).
b) are erected in adjacent states, and the vertical adjustment metal fittings (73a) (73) are attached to these columns (72a) (72b).
The holding cylinders (75a) (75b) for supporting the base ends of the seedling mat pressing rods (74a) (74b) are attached via the b) so that the vertical position can be adjusted.
a) (73b) is attached to the left and right holding cylinders (74a)
Adjust the upper and lower with (74b) and adjust metal fittings (73a)
(73b) is prevented from interfering with each other, and contact of these metal fittings (73a) (73b) with the seedlings is minimized.

As shown in FIGS. 4, 13 and 14, when the divided seedling mount (16a) is folded, the left and right outermost portions of the lower rail (18) and the left and right side bumpers (76) can also be folded. A side bumper (76) that is provided on the side to protect the planting part (15) from the shore during planting work.
The base end of the bumper frame (77) fixed to the front end of the bumper frame (77) is fixed to the pipe frame (78) fixed outside the left and right outermost planting cases (20) by approximately 90 degrees in the upward direction, and the mounting bracket (79) and the fulcrum shaft ( 80) and a positioning pin (81) so as to be foldable.

Further, a fixed length of both left and right ends of the lower rail (18) is divided to form a divided rail body (18a), and a bracket (82) of the rail body (18a) is formed at a central rail body ( 18b) side bracket (83) is connected via a folding fulcrum shaft (84) so that it can be folded inward by approximately 90 degrees. In this case, the split rail body (18
While a) is folded about 90 degrees with respect to the central rail body (18b) to be along both left and right sides of the seedling stand body (18b), the bumper frame (77) is divided rail body (18a). ) Outside the frame, as shown in FIG. 4, the frame (77) is folded into a state in which it overlaps the side-view rail body (18a) by approximately 90 degrees, and the frame (77) is positioned by the positioning pin (81).
The divided rail body (18a) is stored and held and is protected by the frame (77) when it is stored and held.

Further, the base ends of the left and right muscle pulling markers (87) are movably supported on the tip end of the bumper frame (77) via a fulcrum shaft (85) and a marker mounting plate (86). When the bumper frame (77) is folded and stored, and when the marker wire (88) is pulled and the marker wire (88) is pulled to be in the standing storage state, the marker (8) is stored.
Do not let 7) protrude backward, sideways, or upward.
The rear left upper side of the left and right folded seedling placing bodies (18a) is configured to be stored and held in a state in which the tip portions are along the outside.

Furthermore, an arm mounting metal fitting (8) is provided at an intermediate portion of the marker arm (87a) of the muscle pulling marker (87).
An auxiliary hook (90) is provided via 9), and when the marker (87) falls down during work, the auxiliary hook (90) is fixedly held by engaging with a storage metal fitting (91) provided on the arm (87a). At the same time, the auxiliary hook (90) is locked to the marker hook (92) fixed to the upper end of the vertical frame (54a) when the marker (87) is stored upright during the work, and the position of the seedling placing body is maintained. (16a) and the bumper frame (77) are folded, the marker (87) is directly retained by the marker hook (92) when the marker (87) is stored upright. It is configured as shown.

As is clear from the above, the center seedling table body (16b) and the left and right divided seedling table bodies (16a) (16a)
The seedling mounting table (16) is equipped with the left and right split seedling mounting bodies (16a)
In a planting device for a rice transplanter in which (16a) is foldably provided inside the body, a lower rail (18) provided at an inclined lower end portion of the seedling stand (16) has a central rail body (18b).
And the left and right split rail bodies (18a) (18a), and the split rail body (18a) is foldably connected to the rail body (18b) via the folding fulcrum shaft (84).
The split rail body (18a) is folded on the side surface of the seedling placing table body (16b) in a direction substantially overlapping in a side view, and a bumper frame (77) provided with a muscle pulling marker (87) so that it can be raised and lowered is provided with a planting case (20). ) A bumper frame (77) is folded above the upper surface of the seedling table main body (16b) that is foldably connected to the outside of the machine via a pivot fulcrum shaft (80) and intersects with the split rail body (18a) at the folding position. It is configured to

Reference numeral (93) is a joining guide for joining the seedling placing body (16a) to the main body (16b) side.

Further, a stand (94) is appropriately inserted and attached to the pipe frame (78), and a planting portion (15) is provided.
Is removed from the traveling vehicle (1), the stand (9
In 4), the planting part (15) is held.

The present embodiment is configured as described above, and the folding operation of the left and right divided seedling mounts (16a) will be described below.

As shown in FIGS. 5 and 6, the seedling mount (16
When the first arm (37) in the lower vertical state at the time of uniting of a) is
The motor (43) is driven to drive the wires (52a) (52
When the b) is loosened, the extension force of the gas spring (53) is turned about the first fulcrum shaft (36) outward by about 90 degrees to move the seedling mounting body (16a) to the center of the seedling mounting base body. (16b) Separated outward and pulled upward. When the first arm (37) rotates about 90 degrees and the upper and lower second fulcrum shafts (38) overlap each other on one vertical line (R), the seedling placing body (16a) is centered around this shaft (38). ) Is rotated downward by its own weight, and approximately 9 at the back of both sides of the seedling stand body (16b).
It is stored in a bent state of 0 degree. Then, the motor (43) is driven to drive the wires (52a) (52
When pulling b) first against the gas spring (53)
The arm (37) is returned to the lower vertical state again and the seedling support (16
(a) is united on both right and left sides of the main body (16b), and after this uniting, this position is maintained by the spring force of the spring (51).

When the seedling placing bodies (16a) are combined, the upper and lower seedling placing body support arms (42) are mounted near the roller shafts (60a) (60b), so that the claw clutch ( The dimensional deviation in 63) is maximally prevented by the arm (42), the dimensional accuracy can be stably maintained, and the roller shafts (60a) and (60b) can be driven and disconnected successfully. .

In the case of this embodiment, the seedling table body (16
Since the whole width (D2) of the seedling mounting table frame (54) is smaller (D1> D2) than the total width (D1) of (b), the front lower part at the left and right ends of the seedling mounting table body (16b). Can be folded at a right angle to the side, even if the seedling stand (16)
Even if another working device such as a fertilizer applying device (34) is installed in the rear part of the device, the folding can be performed regardless of this.

Further, the mounting dimension (D3) between the left and right outermost sides of the guide shoe (58) for guiding the upper guide rail (19) of the seedling mounting table (16) is set to the total width (D1) of the seedling mounting table body (16b). )), The guide rail (19) is formed in the lateral movement stroke (S) of the seedling placing table (16) and is small (D3 <D1-S). The seam (19a) part of the shoe (5)
8) It does not move to the position and therefore the seam (19a) of the guide rail (19) is attached to the guide shoe (58).
The seedling table (16) can be smoothly moved laterally without passing through.

[0028]

EFFECTS OF THE INVENTION As is clear from the above embodiments, according to the present invention, the center seedling table body (16b) and the left and right divided seedling table bodies (16a) (16a) are provided on the seedling table (16), and In the planting device of the rice transplanter, wherein the divided seedling placing bodies (16a) (16a) are foldably provided inside the body, the seedling placing base (1
6) The lower rail (18) provided at the inclined lower end portion of 6) is provided with a central rail body (18b) and left and right split rail bodies (18a).
(18a), the split rail body (18a) is foldably connected to the rail body (18b) via the folding fulcrum shaft (84), and substantially overlaps with the side surface of the seedling placing table body (16b) in a side view. The split rail body (18a) is folded in the same direction, and the bumper frame (77) on which the muscle pulling marker (87) is freely undulated is folded to the outside of the planting case (20) through the rotation fulcrum shaft (80). The bumper frame (77) is configured to be folded above the upper surface of the seedling table main body (16b) which is freely connected and intersects with the split rail body (18a) at the folding position, and the side surface of the seedling table main body (16b). Since the split rail body (18a) is folded and stored so as to follow the rail, it is easy for the split rail body (18a) to come into contact with the truck carrier or the like to be deformed and damaged when being loaded and transported on the truck carrier. Since the bumper frame (77) can be stopped, and the bumper frame (77) at the storage position is folded up by projecting upward from the inclined lower end of the seedling placing table body (16b) in a side view, the scoring marker (87) provided on the bumper frame (77) is provided. It can be stored along the seedling mounting table body (16b), and the side surfaces of the rail body (18b) and the nearby planting claws (17) can be easily protected by the bumper frame (77) at the storage position. Rail body (18b) or planting claw (1
7) etc. can be easily prevented from directly abutting on the truck bed for transportation, simplifying the folding operation of the lower rail (18) and the bumper frame (77), and improving the handling property during the transportation work using the truck bed. It is possible to easily make improvements.

[Brief description of the drawings]

FIG. 1 is a front explanatory view of a seedling mounting table.

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

FIG. 3 is a plan view of the same.

FIG. 4 is an explanatory side view of the planting section.

FIG. 5 is a front explanatory view of a seedling mounting table.

FIG. 6 is an explanatory view of the same.

FIG. 7 is an explanatory diagram of a rack gear portion.

FIG. 8 is an explanatory diagram of a seedling stand frame portion.

FIG. 9 is an explanatory diagram of a vertical feed roller unit.

FIG. 10 is an explanatory diagram of a pawl clutch unit.

FIG. 11 is an explanatory view of a seedling mat retainer.

FIG.

FIG. 13 is an explanatory diagram of a lower rail portion.

FIG. 14 is an explanatory diagram of the same.

[Explanation of symbols]

 (16) Seedling stand (16a) Split seedling stand (16b) Seedling stand body (18) Lower rail (18a) Split rail body (18b) Rail body (20) Planting case (77) Bumper frame (80) times Dynamic fulcrum axis (84) Folding fulcrum axis (87) Muscle pulling marker

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Hideki Matsuoka Oka No. 32, Chaya-cho, Kita-ku, Osaka City Yanmar Agricultural Machinery Co., Ltd. (72) Masakazu Arakida No. 32-32 Chaya-cho, Kita-ku, Osaka Yanmar Agricultural Machinery Co., Ltd.

Claims (1)

[Claims] 1. A center seedling mounting table body (16b) and left and right divided seedling mounting bodies (16a) (16a) are provided on the seedling mounting base (16), and the left and right divided seedling mounting bodies (16a) (16a) are provided in the body. In a planting device for a rice transplanter, which is provided so as to be freely foldable toward one side, a lower rail (1
8) is formed by the central rail body (18b) and the left and right split rail bodies (18a) (18a).
8b) the split rail body (18a) is folded and the fulcrum shaft (8
4) is foldably connected to each other, the split rail body (18a) is folded in a direction substantially overlapping the side surface of the seedling placing table body (16b) in a side view, and a muscle pulling marker (87) is provided so as to be undulating. Bumper frame (77) with planted case (2
0) Fold the bumper frame (77) above the upper surface of the seedling stand main body (16b), which is foldably connected to the outside of the machine through the pivot shaft (80) and intersects the split rail body (18a) at the folding position. A planting device for a rice transplanter characterized by being configured to be folded.