JPS585105A - Rice planter - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a rice transplanter in which a float of a seedling transplanting device attached to the machine body is attached to a conduction case having a seedling claw drive part so as to be vertically adjustable. The vertical movement of the float is adjusted from above the transmission case via a link mechanism with a handle that has pivot points at appropriate locations on the bottom of the case, making it possible to easily and stably adjust the seedling planting depth. To explain an example drawing in which this is applied to a six-row riding type rice transplanter,
In the figure, (1) shows a fuselage consisting of a front fuselage (2) with seats (4) and a rear fuselage (3).
(3) are each formed in a hollow mission case, and the missions (5) and (6) are built into both, while the rear end of the front fuselage (2) and the front end of the rear fuselage (3) are connected to the vertical axis ( 7), so that both the front and rear fuselages (2
) (3) There are swing cases (8) on both left and right sides respectively.
) (8) , (9) Wheel QI (In,
Ql) (11) is installed, and the distance between each rut on the front wheel a100 and rear wheel Ql) Ql) is 4 for the front wheel Ql) 00 and 4 for the rear wheel 01) (]υ for the seedling planting rack spacing 1. The interval is 2
The ratio is set as follows.

The engine Q2 attached to the rear end of the rear fuselage (3) is connected to the human power shaft (13) of the rear Mitsushicon (6), and the output shaft of the transmission (6) is connected to the front end of the rear fuselage (3) through the vertical shaft (7). In conjunction with the input shaft QG of the transmission (5), the output shaft 0Q of the front transmission (5) is connected to the PTO shaft Q7) protruding from the front of the front fuselage (2) with a clutch for stopping the seedling claw-L section. mechanism(
(to)), while both front and rear axles Ql)Q1m
'Ql)Oυ transmits power from both missions (5) and (6) to travel on the aircraft (1).

A handle base 09 is provided on the front part of the 4th side of the front body (2), and a steering mechanism Qυ of the handlebar mounted on this, and the same as the vertical axis (7) on the 2nd side of the rear body (3) +iiJ end. The chain (c) is transmitted between the sprocket (a) attached to the core, and both aircraft (2) are rotated by rotating the handlebar.
(3) It is configured to be steered by adjusting the bending direction and degree of bending.

(c) is a seedling planting device located in front of the front fuselage (2),
The seedling planting device (c) is composed of three seedling planting units (c) arranged side by side, and each seedling planting unit (c) has an inverted side (a letter-shaped transmission case holder and a claw pivotally supported at its tip). It consists of a pair of seedling planting claws @ (c) attached to both ends of the shaft (a), a seedling stand (b), and a float (to) that supports them.In front of the seedling planting device (c) is a tube made of A bumper OD is arranged, and a branch pipe (A) protruding from the bumper 60 for each seedling planting unit (C) is fixed to the tip of the transmission case (C), and each seedling planting unit is connected to the bumper 6υ. Connect to H, seedling planting device (
There are side bumpers (G) and (E) on both left and right sides of C).
One end thereof is attached to one end of the bumper 0]), and the other end is detachably attached to one end of the seedling platform guide rail G'G.

When attaching the float (to) to the seedling planting unit (c), attach a bendable inverted dog-shaped link (
At the pivot point (30a) midway on the lower surface of each of the transmission cases (A), a dog-shaped link (to) of the rotatable handle wheel is attached to the pivot point (30a). ■At a point closer to the fuselage, the float (to) is pivoted to the bracket (g) on the soil surface (30b) L, and the float (to) is attached so that it can be adjusted vertically, and at this time it corresponds to the base of the handlebar. An arc-shaped fixing plate (A) that also serves as a scale is attached to the transmission case (E), and the handlebar is configured so that it can be freely engaged and detached at any position.In addition, each transmission case (C) Inside are the drive shaft (g) and intermediate shaft (
The rotation of the drive shaft (to) is transmitted to the intermediate shaft (to) by the chino (b), and the free rotation sprocket (to) of the intermediate shaft (to) and the pawl shaft (c) -L are provided. A wire (on the chain) is wound between the free rotating sprocket (to), and a shaft is placed on the intermediate shaft (to) to automatically cut off the power transmission when the power transmitted to the pawl shaft (a) exceeds a certain level. It is equipped with a safety mechanism 00, and the pawl shaft (A) has a sliding key (6) fixed thereon, and a clutch (1) that urges the clutch (2) to always mesh with the sprocket (G). A pin with a knob (C) is provided in the case (A) through the pin with a knob (C), and its half-split inner end is engaged with the flange θ on the outer periphery of the clutch (C).
0 Remove the clutch (goods) by rotating it, and remove the tsuba (
471 It is equipped with a part stopping mechanism that fits into the recess (c) b (pin) on the side so that the seedling claws stop at the two-part position.

Form a flange ring 61) on both left and right sides of the rear end of each transmission case (a), and make both ends of the drive shaft (to) protrude outside the case from the center of the flange f461), and one end thereof The screw shaft 62 is formed with the other end as an occluded shaft (end),
Each seedling planting unit (c) is attached to its respective transmission case 1.
It is connected to the flange Ma111) of the surface by a cylindrical member bolted to it, and both ends of the hollow shaft Q)71@ inserted into this cylindrical member MM are connected to each drive shaft (to). The screw shaft 62 and the circular shaft are removably connected to each other, and each drive shaft (to) (to) (to) (to) is connected in a row, and the seedling planting unit (to) is located in the center. The rear end of the transmission case supports an input shaft which transmits power via a pair of bevel gears.

(61) is a transverse feed mechanism for the seedling stand, whose case transport is mounted between the central transmission case (E) flange 6υ and the cylindrical member (to), and is connected to the chain from the drive shaft (to). The feed shaft transmits power to the cylindrical camshaft through the transmission mechanism and the transmission mechanism, and is equipped with a slidable feed shaft parallel to the camshaft. It engages with the groove ring and is fed laterally in the left and right direction by the rotation of the camshaft.
The right and left ends of the lateral feed are configured to abut fixed camoos on the camshaft and swing and rotate intermittently.

In addition, on the top surface of the transmission case (C) in each seedling planting unit (C), (B), and (C), a long guide rail V with a cross-section type is provided.
6 is a metal fitting (2) at the square part (to) of the longitudinal side edge
The transmission case cA (
e) Flange part on the outer surface (7) Gυ has a trochanter f3 at the tip.
An arm (14G'41) is attached.

Each seedling stand ■ in each seedling planting unit has a circular cross-section rail σ along the top and bottom of its back surface. l! The lower rail Qυ is connected to the square part (C) of the guide rail σ1, and the upper rail M is fitted and engaged to the trochanter (C) at the tip of both arms (14H). It is attached so that it can move freely in the direction, and it is fixed in a way that it cannot be removed by the pink ring that is removably inserted into the L-shaped metal fittings (C) at the tips of both arms 1741ff41. (b) Both end brackets of the feed shaft are connected to the back surface of the feed shaft through the brackets [1 (71), and the seedling mat feed wheel protrudes from the top surface of the seedling platform ■.
A seedling pine vertical feed shaft (2) equipped at appropriate intervals is attached via a bearing (2), a one-way latch provided on the vertical feed shaft (2), and a lever (2) attached to one end of the feed shaft. The vertical feed axis (vertical feed axis) is configured to be rotated intermittently one pitch at a time by connecting the two via a connecting rod (c) and swinging the one-way latch ring by the feed axis ring. .

The seedling planting device (c) configured in this way includes a pair of lower rings connected to the mounting pieces (to) (to) attached to the rear end of the cylindrical member f4F4, and a seedling platform. The front fuselage (2) is connected to the top link ■ connected to the tip of M (c).
It is mounted so that it can move up and down against the lower link width, and is configured to be raised and lowered from the front body (2) side by rotating the lift arm (A) that engages with the width of the lower link. Power is transmitted to the PTO shaft Q71 via a telescopic flexible shaft 01) connected to the PTO shaft Q71.

In this configuration, if the operator sits on the seat (4), lowers the seedling planting device (c) until each of its floats (to) touches the ground in one place, and then moves the machine (1) forward, the seedlings can be planted. The device (c) is glided with each of its floats (to) touching the ground, and the power transmitted from the PTO shaft side of the aircraft (1) to the input shaft is connected to each drive shaft in a row. (To) (
(to) (to) is transmitted to the seedling planting claws (2) (2) of each seedling planting unit (c) (c) (c) and drives this,
Transmission is transmitted from the drive shaft (to) to the camshaft C, and the seedling stands (b) to which the feed shaft wheels are attached are horizontally fed all at once, and at the same time, the vertical feed shaft 31) is moved to the right end of the horizontal feed. Or, since the left end is rotated intermittently one pitch at a time, the seedlings on each seedling stand ■ are placed one by one using the seedling claws (c) in each seedling planting unit I addition (c). Multiple articles (6 in this example)
In this case, by rotating the handle of the adjustment link (to) that protrudes from the top of the conduction case (a) forward, the float (to) and the conduction case (to) can be planted.
The height between the seedlings (A) and (B) becomes lower, and on the other hand, the rotation of the seedling planting claw (C) is always at a constant radius, so the depth of seedling planting becomes deeper. Rotate the handle shaft link (1) to increase the height between the float (to) and the case (e) and shallow the seedling planting depth by rotating the handle handle backward. By adjusting the height between the float and the transmission case wall, the height can be set as desired. To stop planting, operate the clutch mechanism (c) installed between the PTO shaft Q7) and the front transmission (5) to cut off power transmission to the seedling planting device (c). H1 seedling planting can be stopped all at once by using the knobs (
When the pin with C) is rotated 1800 degrees, the clutch ■ will be released, and it will stop at the position where the collar θD is engaged with the pin), and the seedling-planting claws (C) ( C) is stopped at the raised position, and so on, each seedling planting claw (
c) can also be stopped for each seedling planting unit.

In this case, as shown in Fig. 9, the pawl shafts are two pawl shafts (27a) (27b) that are separated at the center, and a free rotating sprocket (toward) is provided between the tips of the pawl shafts. (2
7a) (27b) are provided with springs (44a) (44b) and elbow clutches (43a) (43b), respectively.
3&) (43b), its engagement/disengagement knob (45a)
(One L with 45b attached bins (46a) (46b)
Attach the stop mechanism (49a) (49b) to each seedling, claw @(c)
If each seedling planting claw (C) is provided separately, each seedling planting claw (C) can be stopped individually, and a safety mechanism is provided between the drive shaft (C) and the claw shaft in each seedling planting unit. As a result, it is safe to prevent the claws from being damaged due to overload of each seedling planting claw, and these main clutch mechanisms α barrel,
It goes without saying that the upper stop mechanism (49a) (49b) and the safety mechanism θυ may have a structure other than that shown in the drawings.

In summary, the present invention has a seedling support (b) attached to the top surface of the seedling planting claw (c) and bone conduction case (e), and a float (to) attached to the bottom surface of the case (e) with a handle rotating (in the shape of a letter). Link (to)
When the dogleg-shaped link (7) and the conduction case (e) are attached so as to be movable up and down, the pivot point (30a) between the dogleg-shaped link (7) and the conduction case (e) is the pivot point between the tip of the dogleg-shaped link (to) and the float. (30
b) It is located in front of the body (1) in the traveling direction, and can be easily moved by simply rotating the handle (G) and locking it to the fixed plate (4)'. It is possible to adjust the downward movement of the L, and therefore the planting depth of seedlings can be adjusted.

Furthermore, the pivot point between link (7) and float (to) (
If 30b) is located in the 011 direction from the pivot point (30a) with the conduction case (e), a compressive force will be applied to the link (to) when it runs along the field, and if the link (7) is lengthened, it will buckle. However, on the contrary, in the present invention, the pivot point (
30b) is located behind (30a), so when the float (G) slides in the field, only a tensile force is applied to the link (To), and buckling does not occur, so the link (7) is lengthened. Therefore, the depth can be adjusted to a large extent, and it is possible to provide a seedling planting depth adjustment mechanism that is simple in structure, lightweight, and stable.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention; FIG. 1 is a side view of the rice transplanter, FIG. 2 is a plan view of FIG. 1, and FIG.
-III enlarged sectional view, Figure 4 is a ■-■ view of Figure 3,
Figure 5 is a cross-sectional view of the seedling planting device, and Figure 6 is from ■ to ■ in Figure 5.
The enlarged sectional view, Fig. 7 is the same as Fig. 5 - ■ Enlarged view, Fig. 8
The figure is a cross-sectional view of the seedling planting claw stop mechanism, Figure 9 is an alternative view of Figure 8, and Figures 10, 11, and 12 are diagrams showing the state when the number of rows is changed. . (Misaki... fuselage, 0001... nose wheel, a]) aυ...
Rear wheel, (c)... Seedling planting device, (c)... Seedling planting unit, (E)... Transmission case, (To)... Seedling planting claw, ■
...Float, ■...Seedling stand, (A)...Handle, (7)...Dog-shaped link, 0...Inverted dogleg-shaped link, (30a)...Conduction Case side pivot point, (30
b)...Float side car R point. 1 special edition person: Yanmar R Machine Co., Ltd. agent Patent attorney Akio Doishi

Claims (1)

[Claims] When attaching a seedling stand to the soil surface of a conduction case with seedling claws and attaching a float to the bottom of the case via a letter-shaped link with a handle so that it can move up and down, the pivot between the dogleg-shaped link and the conduction case is A rice transplanter in which a viewing point is located forward in the machine running direction from a pivot point between the tip of the doglegged link and the float.