JPS5831451Y2 - Multi-row rice transplanter - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a so-called multi-row rice transplanter that plants seedlings along multiple rows.

A conventional multi-row rice transplanter is attached to a traveling machine body, and from a feed case with a built-in horizontal and vertical feed mechanism for the seedling platform, multiple transmission cases with seedling planting claws at the tips and ends are connected at appropriate intervals. Therefore, in order to change the spacing between seedling rows and the number of seedling rows between each transmission case, a feed case that is integrally equipped with the transmission case is manufactured each time. Since a plurality of feeding cases equipped with various functions had to be installed in parallel, it was extremely troublesome to change the number of threads.

The present invention is a multi-row rice transplanter in which a plurality of transmission cases each having a seedling planting claw and a float are arranged in parallel, and each transmission case is separated from a feeding case having a lateral feeding mechanism for a seedling platform. A cylindrical member having both ends removably joined to the flange portion on the opposing inner side connects each transmission case with a flange portion formed on both left and right side surfaces of each transmission case. A transmission case with a seedling claw and A mission case in which the seedling planting unit including a float has a common form, and the width of the seedling planting unit can be reduced to arbitrarily and easily change the number of seedling planting rows, etc., and also has a lateral feeding mechanism for the seedling planting table. In the figure, 1 indicates the front fuselage 2 with 4 seats and the rear fuselage 2. The front and rear fuselages 2 and 3 are each formed into a hollow mission case and have missions 5 and 6 built into them, while the rear end of the front fuselage 2 and the rear fuselage 3
are horizontally and bendably connected to the front end of the fuselage 2 through a vertical shaft 7, and wheels 10, 10, . 11
．． 11 is installed, front wheels To, 1o and rear wheels 11
．． Each spread distance in 11 is 1 front wheel for 1 seedling planting row spacing.
The ratio is set to 4 for the distance between 0.10 and 2 for the distance between the rear wheels 11° and 11.

The engine 12 attached to the rear end of the rear fuselage 3 is connected to the input shaft 13 of the rear transmission 6, and the output shaft 14 of the transmission 6 is connected to the input shaft 1 of the front transmission 5 via the vertical shaft 7.
5, the output shaft 16 of the front transmission 5 is connected to the PTO shaft 17 protruding from the front of the front body 2 via a clutch mechanism 18 for stopping the upper part of the seedling claw, while the front and rear wheels At 10, 10.11° 11, power is transmitted from both missions 5 and 6, respectively, and the aircraft 1 travels.

A handle base 19 is provided at the front of the upper surface of the front fuselage 2, and a steering mechanism 21 of the handle 20 provided on the handle base 19 is connected to a sprocket 22 mounted concentrically with the vertical shaft 7 on the top surface of the cut end of the rear fuselage 3. A chino 23 is transmitted between the two bodies, and the bending direction and new degree of bending of both the bodies 2 and 3 are adjusted by rotating the handle 20 to perform peeling.

Reference numeral 24 denotes a seedling planting device located in front of the front body 2. The seedling planting device 24 is composed of three seedling planting units 25 arranged in parallel, and each seedling planting unit 25 has a transmission case 26 and its tip. A pair of seedling planting claws 28 attached to both ends of a claw shaft 27 that is pivotally supported on the
, 2B and the lower part of the case 26 are attached to a freely rotatable link 30 with a handle 29, and the tip of the case 26 is attached to a bumper 31 (described later) via an unbendable letter-shaped link 32 so as to be vertically movable. 33 and a seedling stand 34, each transmission case 26 is equipped with a drive shaft 35 and an intermediate shaft 36, and the rotation of the drive shaft 35 is transmitted to the intermediate shaft 36 by a chino 37, and the play of the intermediate shaft 36 is A chino 40 is installed between the rotating sprocket 38 and the free rotating sprocket 39 on the pawl shaft 27.
The intermediate shaft 36 is equipped with a safety mechanism 41 that automatically cuts off power transmission when the power transmitted to the pawl shaft 27 exceeds a certain level, and the pawl shaft 27 is equipped with a sliding key. 4
2. A spring 44 is provided that urges the clutch 43 to be engaged with the sprocket 39 at all times, and a pin 46 with a knob 45 is provided in the case 26, and the inner half of the pin 46 is attached to the clutch 42. It engages with the collar 47 on the outer periphery and releases the clutch 43 by rotating the pin 46 180 degrees, and the recess 48 on the side of the collar 47 fits into the pin 46 and the seedling claws 28, 28 are stopped at a partial position. An upper stop mechanism 49 is provided.

Flange portions 50 and 51 are formed on both left and right side surfaces of the rear end of each of the transmission cases 28, and both ends of the drive shaft 35 are attached to the flanges 5.
0.51 protrudes from the center of the case, and has one end formed as a screw shaft 52 and the other end formed as a notched shaft 53, and each seedling planting unit 25 is connected to a flange 50. Cylindrical member 55, 5 connected to port 54 to 51
6, and both ends of the hollow shafts 57 and 58 inserted into the cylindrical members 55 and 56 are removably joined to the threaded shafts 52 and the circular shafts 53 of each drive shaft 35. Axis 3
5 , 35 , 35 are connected in a line, and a drive shaft 35 is attached to the rear end of the transmission case 26 of the seedling planting unit 25 located in the center.
An input shaft 60 that transmits power via a pair of bevel gears 59 is pivotally supported.

Further, 70 is a long guide rail of a cross-section type that guides the lower part of the seedling platform 34 when it moves laterally, and a long guide rail 70 is provided on the upper surface of the transmission case 26 in each seedling planting unit (25, 25.25). - While the square part 71 on the side edge is attached via the metal fitting 72, each outer flange part 50. A seedling support arm 74, 74 having a hollow portion into which the tip of the drive shaft 35 is loosely fitted, and a trochanter 73 at the tip is detachably attached with a bolt or the like.

Then, each seedling platform 34 in each seedling planting unit,
U-shaped cross-sectional rail 75.75 along the top and bottom of the back side
The lower rail 75 is connected to the square part 71 of the guide rail 70, and the upper rail 76 is connected to the both arms 74.7.
The seedlings are attached to the trochanters 73 at the ends of the four arms so as to be movable laterally, and are detachably inserted into the ends of the L-shaped fittings 77 at the ends of both arms 74 and 74. Platform 34
is locked upwards so that it cannot be removed.

61 is a horizontal feeding mechanism of the seedling stand, and its feeding case 62 is
A hollow portion integrally protruding from the feed case 62 is inserted between the flange portion 51 of the central transmission case 26 and the cylindrical member 56 and is attached in a sandwiched manner, and is connected from the drive shaft 35 to the chino 63 and the feed speed change. Power is transmitted to a cylindrical camshaft 65 via a mechanism 64, and a slidable feed shaft 66 is provided parallel to the camshaft 65.

The feed shaft 66 is transversely fed in the left and right direction by the rotation of the camshaft 65 with its boat-shaped key 67 engaged with the reciprocating spiral groove 68 of the camshaft 65, and at the right and left ends of the transverse movement, the camshaft It is configured to contact the upper fixed cam 69, 69 and swing and rotate intermittently.

Then, both ends of the horizontal feed shaft 66 are connected to the back surface of the seedling stand 34 via brackets 79 and 79, and
A seedling mat vertical feed shaft 81 equipped with seedling mat feed wheels 80 protruding from the upper surface of the seedling platform 34 at appropriate intervals is attached via a bearing 82, and a one-way clutch 83 provided on the vertical feed shaft 81 and the A lever 84 attached to the end of the feed shaft 66 is connected to the lever 8.
5, and by swinging and rotating the one-way clutch 83 by the feed shaft 66, the vertical feed shaft 81 is rotated intermittently one pitch at a time.

The seedling planting device 24 thus configured includes a pair of lower links 87, 87 connected to the mounting pieces 86, 86 attached to the rear end of the cylindrical member 56, and a seedling platform 34. Mast & 8 erected from cylindrical 9 members 55, 56 etc. along the back side
．． The top ring 89 connected to the tip of 8.8 is attached to the front body 2 so that it can move up and down, and the front body 2 side is moved by rotating the lift arm 90 that engages with the lower link 87. The input shaft 60 is configured to be able to move up and down by a large distance, and power is transmitted to the input shaft 60 via a telescoping shaft 91 that connects with the PTO shaft 17.

Further, a front bumper 31 is disposed in front of the seedling planting device 24, and a branch pipe 92 protruding from the bumper 31 for each seedling planting unit 25 is connected to the tip of the transmission case 27, so that each seedling planting unit are connected to each other by the bumper 31, and side bumpers 93, 93 are provided on both left and right sides of the seedling planting device 24.
One end thereof is attached to one end of the bumper 31, and the other end thereof is detachably attached to one end of the seedling stand guide lens 70.

In this configuration, an operator sits on the seat 4 and the seedling planting device 2
4 is lowered until each of the floats 33 touch the field, and then the machine 1 is moved forward. The seedling planting device 24 is slid with each of its floats 33 touching the field, and the machine 1
The power transmitted to the 7 input shaft 60 on the PTO shaft is -
The power is transmitted from each drive shaft 35, 35, 35 connected in a row to the seedling planting claws 28, 28 of each seedling planting unit 25, 25, 25 to drive this, while the power is transmitted from the drive shaft 35 to the cam shaft 65. Each seedling stand 34, 3 to which the transverse feed shaft 66 is attached
4.34 are transversely fed all at once, and at this time, since the movement cycle of the seedling planting claw 28 and the constant transverse feed amount of the transverse feed shaft 66 are synchronized, each seedling planting unit) 25, 25. 2
The seedlings on each seedling platform 34 are divided one by one by the field planting claw 28 at 5 and planted along a plurality of rows (six rows in this example). The vertical feed shaft 81 rotates intermittently one pitch at a time, and the pine seedlings on each seedling mounting table 34'' descend downward.

To stop planting seedlings when changing direction at the edge of a field or driving on the road, operate the clutch mechanism 18 provided between the transmission 5 and the 7th part on the PTO shaft. By cutting off power transmission to the seedling planting device 24, seedling planting can be stopped all at once, and each seedling planting unit l-25, 2
If the pin 46 with the knob 45 at 5, 25 is rotated 180 degrees, the clutch 43 will be released and the collar 47. The seedling planting claws 28 and 28 at both ends of the claw shaft 27 stop at the position where the recess 48 engages with the pin 46, and the seedling planting claws 28 and 28 at both ends of the claw shaft 27 stop at the 1" raised position. You can also stop it every time.

In summary, the present invention provides a method for connecting and connecting a plurality of seedling planting units 25 each consisting of a transmission case 26 with a seedling planting claw 28 and a float 33 attached to the transmission case. Flange portions 50 and 51 are formed on both sides, and the respective transmission cases are connected by a cylindrical member 55 or 56 whose both ends are removably joined to the flange portion on the opposite inner side. A feed mechanism 61 is formed by inserting and holding a portion integrally protruding from a feed case 62 into a joint between the flange portion and the cylindrical member or a flange joint provided in the middle of the cylindrical member. Therefore, the transmission case and float in each seedling planting unit can be made into the same shape for each seedling planting unit).In other words, each seedling planting unit can be made into a unit with a common shape, and each seedling planting unit) can be made into the same shape. Since it can be joined at both the left and right sides, the seedling planting unit here can be removed from the 6-row planting state shown in the above embodiment and Fig. 10 to be planted in 4 rows as shown in Fig. 9 (in this case, the feeding case 62
If the protruding part of the feed case 62 remains inserted between the flange 50 and the cylindrical member 56 as in the case of six-row planting, the feed case 62 will be eccentric, but it should be installed at the center position. Sometimes, as shown in FIG. 9, flange joints 55' and 55'' are provided in the middle of the tubular member 55,
5' and 55'' by inserting the protruding part of the feeding case 62).

Alternatively, from the 4-row planting state shown in Fig. 9, one seedling planting unit L-25, 25 of a common type is additionally placed on each side of the four-row planting state and connected with a cylindrical member, as shown in Fig. 11. The number of rows in which seedlings are planted can be changed very easily by adding or removing common seedling planting units, and the number of rows in which seedlings are planted can be changed very easily by changing the length of the cylindrical member. The row spacing can be easily changed.

Moreover, the present invention provides a feeding case having a transverse feeding mechanism for the seedling stand, and a portion projecting in one direction from the feeding case to a flange joint portion provided between the flange portion and the cylindrical member or in the middle of the cylindrical member. Because they are inserted and held in place, it is possible to assemble the feeding case integrally at the same time as the connection of each seedling planting unit, and it is possible to prevent an increase in the time and space required for assembling the feeding case, and also to prevent the case from protruding from the feeding case. The part is formed into a hollow shape as in the embodiment, and there is an effect that power can be transmitted between the feeding case and the seedling planting unit inside the part.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, and FIG. 1 is a side view of the rice transplanter, FIG. 2 is a plan view of FIG. 1, and FIG.
4 is an IV-IV view of FIG. 3, FIG. 5 is a cross-sectional view of the seedling planting device, and FIG. 6 is a vI-V view of FIG. 5.
Fig. 7 is an enlarged sectional view of Fig. 5, Fig. 8 is a sectional view of the lower part of the seedling claw stopping mechanism, Fig. 9, Fig. 10, and Fig. 11 show the number of rows. It is a figure which shows the state when changing. 1... Airframe, 10.10... Front wheel, 1
1.11... Rear wheel, 24... Seedling planting device, 25... Seedling planting unit, 26... Transmission case, 28...・Seedling planting nail, 33...
Float, 34... Seedling stand, 55.56...
...Cylindrical member, 57.58...Shaft, 61...
...Transverse feed mechanism, 62...Feed case.

Claims (1)

[Scope of utility model registration request] In connecting a plurality of seedling planting units each consisting of a transmission case with a seedling claw and a float attached to the transmission case, flanges are formed on both left and right sides of the transmission case in each of the seedling planting units. The transmission cases are connected by a cylindrical member whose both ends are removably joined to the flange portions on the opposing inner sides. 1. A multi-row rice transplanter characterized in that the multi-row rice transplanter is inserted and clamped at a joint between a section and a cylindrical member, or at a flange joint provided in the middle of the cylindrical member.