JPS5831455Y2 - Rice transplanter seedling stand - Google Patents

Description

[Detailed description of the invention] The present invention relates to a seedling stand for a seedling transplanter such as a rice transplanter, and more specifically, the seedling stand is supported so as to be movable left and right on the upper surface of a transmission case that has a seedling claw at the tip. In doing so, the seedling stand can be attached and removed from the aircraft by moving the seedling stand in the vertical direction, and the attachment and removal can be done extremely easily and without damaging the supporting part. In the drawing, 1 is a front fuselage 2 with 4 seats and a rear fuselage 3 with 4 seats.
The front and rear fuselages 2 and 3 are each formed in a hollow mission case, and both have missions 5 and 6 attached to them.
On the other hand, the rear end of the front fuselage 2 and the front end of the rear fuselage 3 are horizontally bendably connected via a vertical shaft 7, and swings are installed on both left and right sides of the front and rear fuselages 2 and 3, respectively. Wheels 10, 10, 11.11 through case 8, 8° 9.9
is installed, front wheel 10.10 and rear wheel 11.11
The distance between each rut is 10.10 for the front wheel for a seedling planting row spacing of 1.
is set to be 4, and the ratio between rear wheels 11 and 11 is set to 2.

The engine 12 attached to the rear end of the rear fuselage 3 is connected to the human power 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 via a clutch mechanism 18 for stopping the upper part of the PTO shaft 7 on the PTO shaft protruding from the front surface of the front body 2, while the output shaft 16 of the front transmission 5 is 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 upper front part of the front body 2,
A steering mechanism 21 of a handle 20 provided on this,
A chino 23 transmits power between a sprocket 22 mounted concentrically with the vertical shaft 7 on the upper surface of the front end of the rear body 3, and the direction and degree of bending of both bodies 2 and 3 are adjusted by rotating the handle 20. The vehicle is configured to be steered by the vehicle.

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
, 28 and the lower surface of the case 26 through a link 30 with a rotatable handle 29, and a float 33 whose tip end is attached to a bumper 31 (described later) via a non-bendable link 32 so as to be movable up and down. Each transmission case 26 is equipped with a drive shaft 35 and an intermediate shaft 36, the rotation of the drive shaft 35 is transmitted to the intermediate shaft 36 by a chino 37, and the idler sprocket of the intermediate shaft 36 is I.38
A chino 40 is wound between the idling sprocket 39 of the pawl shaft 27'' and the intermediate shaft 36, and a mechanism is installed on the intermediate shaft 36 so as to automatically cut off the power transmission when the power transmitted to the pawl shaft 27 exceeds a certain level. In addition, the pawl shaft 27 is provided with a clutch 43 with a sliding key 42 locked, and a spring 44 that biases the clutch 43 so that it is always engaged with the sprocket 39, and the case 26 is provided with a knob 45. A pin 46 is provided to penetrate through the pin 46, and its half inner end is engaged with the collar 47 on the outer periphery of the clutch 43. When the pin 46 is rotated 180 degrees, the clutch 43 is released, and the recess 48 on the side of the collar 47 is inserted into the pin 46. An upper stop mechanism 49 is provided which engages to stop the seedling planting claws 28, 28 in the upper position.

Flange portions 50 and 51 are formed on both left and right side surfaces of the rear end of each transmission case 26, and both ends of the drive shaft 35 are attached to the flanges 50 and 51.
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. A cylindrical member 55 having Pol I and 54 coupled to 51,
56, and both ends of the hollow shafts 57 and 58 inserted into the cylindrical members 55 and 56 are removably joined to the screw shaft 52 and the circular shaft 53 of each drive shaft 35. The shafts 35, 35.35 are connected in a line, and a drive shaft 35 is provided at 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.

Reference numeral 70 denotes a long cross-sectional guide rail that guides the lower part of the seedling platform 34, 34, 34 when it moves laterally, and is a conductive case 2 in each seedling planting unit)-25, 25, 25.
6. The rectangular part 71 of the longitudinal side edge of the rail 70 is attached to the upper surface of the rail 70 via a metal fitting 72, while the outer flange part of each of the transmission cases 26 and 26 located at the outermost side among the plurality of transmission cases arranged in parallel. Seedling support arms 74 and 74 each having a trochanter 73 at its tip are detachably attached to the arms 50 and 51 by means of ports 1 to 51.

Each seedling stand 34 in each of the seedling planting units I has a lower rail 75 with a downward U-shaped cross section disposed laterally on the lower part of its back surface, and a downward U-shaped cross section disposed laterally on the upper part of its back surface. The lower rail 75 is connected to the square part 71 of the long guide rail 70, and the upper rail 76 is connected to the trochanter 73 at the tips of both arms 74 and 74 from above downward. By being fitted and secured to each other, they are mounted so as to be movable in the lateral direction.

At the tips of the L-shaped metal fittings 77 that protrude upward from the tips of both arms 74 and 74, there is a pin 78 for preventing removal that protrudes toward the back surface of the seedling stand 34 at a position above the upper rail 76. , it is provided so that it can be inserted and removed freely.

In addition, in this embodiment, the removal prevention pin 78 is
Instead of being provided above the upper rail 76, it may be provided above the lower rail 75. Reference numeral 61 designates a transverse feed mechanism for the seedling stand, and its case 62 is connected to the central transmission case 26, the flange 51, and the cylindrical member. 56, power is transmitted from the drive shaft 35 to the cylindrical camshaft 65 via the chino 63 and the transmission mechanism 64, and a slidable feed shaft 66 is provided parallel to the camshaft 65. .

The feed shaft 66 is engaged with the boat-shaped key 67 or the reciprocating spiral groove 68 of the camshaft 65, and is horizontally fed by the rotation of the camshaft 65, and at the right and left ends of the lateral movement, the camshaft It is configured to contact the upper fixed cam 69, 69 and swing and rotate intermittently, and both ends of the feed shaft 66 are connected to the back surface of the seedling platform 34 via brackets 79, 79. A vertical feed shaft 81 having feed wheels 80 protruding from the upper surface of the seedling table 34 at appropriate intervals is attached via a bearing 82, and a one-way clutch 83 provided on the vertical feed shaft 81.
and a lever 84 attached to the end of the feed shaft 66 are connected via a connecting rod 85, and the one-way clutch 83 is connected by the feed shaft 66.
By swinging and rotating the vertical feed shaft 81, the vertical feed shaft 81 is rotated intermittently one pitch at a time.

The seedling planting device 24 configured in this way has a cylindrical member 5
A pair of lower links 87 and 87 connected to the mounting pieces 86 and 86 and a mast 8 erected from the cylindrical members 55 and 56 along the back surface of the seedling stand 34 are attached to the rear end of 6.56.
8 and 88 are attached to the front body 2 so as to be able to move up and down with a top link 89 connected to the tips thereof, and the front body 2 side can be moved by rotating the lift arm 90 that engages with the lower link 87. The input shaft 69 is configured to be able to move up and down greatly from the ground, and power is transmitted to the input shaft 69 via a telescoping shaft 91 that connects with the PTO shaft 17.

In addition, a front bumper 31 is arranged in front of the seedling planting device 24, and a branch pipe 92 protruding from the bumper 31 for each seedling planting unit I/25 is connected to the tip of the transmission case 26.
Each seedling planting unit is connected to each other by the pants 31,
Site bumpers 93, 9 are provided on the left and right sides of the seedling planting device 24.
3 is detachably attached to one end of the bumper 31 and the other end to one end of the seedling platform guide rail 70, respectively.

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 moves forward, the seedling planting device 24 is slid with each of the floats 33 touching the field,
The power transmitted from the PTO shaft 17 of the aircraft body 1 to the human power shaft 60 is transmitted from each drive shaft 35, 35.35 connected in a row.
The information is transmitted to the seedling planting claws 28, 28 of each seedling planting unit 25, 25.25 to drive this, while the seedling mounting table 34.34.3
4 is supported by the guide rail 7.0 and the trochanter 73.73 C3 at the tip of the support arm 74.74 via the rails 75.76 provided above and below the back surface, and is movable in the lateral direction. , Kakeru! ) The power from $b, '35 discards the gum shaft 65 of the transverse feed mechanism 61', and transversely feeds the feed shaft '61 to each seedling stand 34.34 to which the shaft 61 is attached. ．．
34 are transversely fed in one piece.

At this time, since the movement cycle of the seedling planting claw 28 and the lateral feed amount of the lateral feed shaft 66 are synchronized, each seedling planting unit is used in the field scene.
The seedlings on each seedling planting claw 28 at 25, 25. The feed shaft 81 rotates intermittently one pitch at a time, and the seedling mats on each seedling platform 34 descend downward.

To stop planting seedlings when changing direction at the edge of a field or driving on the road, the clutch mechanism 18 provided between the PTO shaft 17 and the front transmission 5 is operated. By cutting off the power transmission to the seedling planting device 24, seedling planting can be stopped all at once, and each seedling planting unit) 25,2
5. If the pin 46 with the knob 45 in step 25 is rotated 180 degrees, the first clutch 43 will be released, and the fold 48 on the collar 4 will stop at the position where it is engaged with the pin 46, and the seedlings at both ends of the claw shaft 27 will be removed. It is also possible to stop each seedling planting nail 28 in units of each seedling planting unit or unit, such as stopping the planting nails 28, 28 in the raised position.

□Conventionally, in order to attach the seedling stand to the horizontally moving self-bore on the aircraft side,
As in Japanese Utility Model Application Publication No. 47-22123, the lower rail provided at the lower part of the back surface of the seedling placement is connected to the rectangular part of the long guide rail on the machine body side, and the upper rail provided at the upper part of the back surface is connected to the trochanter on the machine body side. 1. Previously, the lower rail is provided with a protrusion that engages with the lower side of the square part of the long guide rail, so that the seedling stand is installed and erected so as to prevent it from collapsing upward; In this method, when installing the seedling stand, one end of the lower rail and the upper rail of the seedling stand must be aligned with the other end of the long guide rail and the trochanter on the machine side, and then moved laterally. Also,
Even when the seedling stand is removed from the frame side, the seedling stand must be moved laterally until one end of the lower rail and upper rail come off the other end of the long guide rail and the trochanter. Not only is removal extremely troublesome, but a space equivalent to the width of the seedling stand is required on one side of the rice transplanter, making it impossible to install or remove it in a narrow space. When one end is fitted to the other end of the long guide rail and the trochanter, or when one end of the lower rail and the upper rail comes off from the other end of the long guide rail and the trochanter, the seedling stand is attached to the long guide rail and the trochanter. The straining weight of the rails often caused damage to each rail.

In contrast, in the present invention, as described above, the lower rail 75 at the bottom of the back surface of the seedling stand 34 is fitted into the long guide rail 70 on the side of the noodle body, and the upper rail 76 at the top of the back surface is fitted into the trochanter 73 on the machine body side. On the other hand, on the machine body side, above the lower rail 75 or the upper rail 76, there is a long guide rail and a trochanter that protrudes toward the back surface of the seedling stand so as to prevent the rail from coming off the long guide rail and the trochanter upward. A pin 78 to prevent the seedlings from being removed is detachably provided, and if the pin 78 is removed, the upper lock of the seedling platform 34 will be released, so the seedling platform 34 can be removed in this state. 34 can be removed by simply lifting it upwards.
In addition, with the pin 78 removed, the seedling stand can be attached by lowering the lower rail 75 onto the long guide rail 70 so that the upper rail 76 fits into the trochanter 73. There is no need to move the seedling stand by a large distance in the lateral direction when attaching or removing the seedling stand.

Therefore, according to the present invention, it is possible to attach and remove the seedling stand much easier than conventional ones, and the seedling stand can be mounted even in narrow spaces without requiring a large space on the side of the rice transplanter. It can be attached and removed, and when the seedling stand is attached or removed, the guide part is not strained by the weight of the seedling stand, and the guide part is not damaged.

[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.
-III enlarged sectional view, FIG. 4 is a IV-IV view in FIG. 3, FIG. 5 is a cross-sectional view of the seedling planting device, and FIG. 6 is a V in FIG.
I-Vl enlarged sectional view, Fig. 7 is VIIVl of Fig. 5,
8 is a sectional view of the upper stop mechanism of the seedling claw, and FIG. 9, FIG. 10, and FIG. 11 are views showing the state when the number of rows is changed. 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, 70...
Long guide rail, 71... Square part, 73...
... Trochanter, 74.74 ... Support arm, 7
5...Lower rail, 76...Upper rail, 78...Pin.

Claims (1)

[Scope of utility model registration request] At the bottom of the back of the seedling stand, install a lower rail with a downward U-shaped cross section.
At the top of the back side, attach the upper rails with the same downward U-shaped cross section laterally to the seedling stand, the lower rails to the long guide rails attached to the body side, and the upper rails to the trochanters attached to the body side. While it is fitted downward from above, the back side of the seedling stand is placed above the lower rail or upper rail on the machine side to prevent these rails from coming off upward from the long guide rail and trochanter. A seedling stand for a rice seedling machine that is equipped with a removable pin that protrudes from the side to prevent plucking.