JPS6140087Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a device for transversely transporting a seedling stand on which seedlings are placed in a rice transplanter by an appropriate amount in the left and right direction. The seedling stand is attached so that it can be moved laterally.
When performing cross-feeding using a cross-feeding shaft mounted approximately parallel to this, the phase position between the cross-feeding shaft and the seedling tray can be adjusted, and the parallelism between the cross-feeding shaft and the seedling tray can be adjusted slightly. Even if there is an installation error, the seedling stand can be moved horizontally smoothly regardless of this error.

The embodiment shown in the drawings will be described below. In the drawings, reference numeral 1 denotes a body frame of a rice transplanter, and the body frame 1 includes a transmission case 3 to which an engine 2 is attached on the upper surface, and a transmission case 3 extending rearward from both left and right ends of the transmission case 3. A traveling transmission case 6 formed integrally with the transmission case 3, which is configured in a U-shape in plan with a pair of left and right hollow side frames 4 and 5, has a transmission case 6 extending rearward between the two side frames 4 and 5. The front end of the swing case 7 is rotatably pivoted, and a running wheel 8 is provided at the tip of the swing case 7 and is located on the center line of the vehicle body frame 1. Chain in swing case 7 from swing case 6 (not shown)
Rotationally driven through.

Seedling planting cases 9 and 10 are fixed to the rear ends of both side frames 4 and 5, respectively, and the two seedling planting cases 9 and 10 are connected by a gate-shaped connecting frame 11. A wheel lifting device 12 is provided between the connecting frame 11 and the swing case 7 to raise and lower the wheels 8.
By moving the rice transplanter up and down, the entire rice transplanter can be raised and lowered.

Reference numerals 13 and 14 indicate a pair of left and right operating handles that extend rearward from the seedling planting cases 9 and 10, and the operating handles 13 and 14 are bent in an upwardly inclined shape, and the upper surface of the slanted portion has both sides. A rear-tilt seedling stand 17 is provided which is supported movably in the left and right lateral directions by a guide rail 15 and a rail mechanism 16 mounted horizontally between the handles, and a rear surface of the seedling stand 17 is provided. Both handles 13 and 14 have a transverse feed shaft 18 having a reciprocating thread groove 19 on the outer periphery.
The bearings 20 and 2 are mounted parallel to the moving direction of the seedling stand 17.
A sliding boss body 22 is rotatably supported on the transverse feed shaft 18 and is slidably fitted on the transverse feed shaft 18. A boat-shaped key 23 that engages with the reciprocating screw groove 19 is provided on the sliding boss body 22, and the sliding boss body 22 is integrally attached to the sliding boss body 22. By inserting the shaped engagement piece 46 into the cylindrical support 47 attached to the back of the seedling platform 17 and relating it to the seedling platform 17, the seedlings can be removed by rotation of the transverse feed shaft 18 in the direction of arrow A. In configuring the platform 17 to be reciprocated from side to side and horizontally fed, the cylindrical receiver 47 is provided with a pair of left and right adjustment screws 48 that sandwich the engagement piece 46 inserted into the cylindrical receiver 47 from both left and right sides. 49 is provided so that the relative position in the left and right direction between the sliding boss body 22 and the seedling platform 17 can be freely adjusted. While vertical feed cams 44 and 45 are provided for vertical feeding, a vertical feed cam 44 and 45 is provided at the bottom of the back surface of the seedling platform 17, and a plurality of ratchet wheels 50 having a part of the outer periphery protruding from the upper surface of the seedling platform 17 are provided. The feed shaft 51 is supported substantially parallel to the lateral feed direction by a pair of left and right bearings 52 and a central bearing 53 integrally formed with the cylindrical receiver 47,
The vertical feed shaft 51 is provided with a pair of left and right freewheels 54 that transmit rotation only in one direction and rotate idly in the opposite direction, and a lever 55 is integrally provided on both freewheels 54 and is connected to the seedling stand. 17, the vertical feed shaft 51 is rotated upward by the vertical feed cams 44 and 45 at the end of the left and right horizontal feed.
It is configured to rotate intermittently in the direction to sequentially vertically feed the seedlings on the seedling stand 17.

In addition, elastic bellows-type boots 56 and 57 are fitted on both sides of the sliding boss body 22 on the lateral feed shaft 18 .

In both the seedling planting cases 9 and 10, claw shafts 24 and 25 are supported horizontally and laterally, respectively.
At the inner end of 4, 25 there is a swinging seedling planting mechanism 26, 2.
7, and the bevel gear 30 at the tip of the shaft 29 inserted into the right side frame 5 is attached to the bevel gear 28 on the pawl shaft 25 in the right seedling planting case 10, and the bevel gear 30 at the tip of the shaft 29 inserted into the right side frame 5 is attached to the bevel gear 30 on the pawl shaft 25 in the left seedling planting case 9. Bevel gears 33 at the tips of shafts 32 inserted into the left side frame 4 are meshed with bevel gears 31 on the shaft 24, and power is transmitted from the engine 2 to both claw shafts 24 and 25 to plant the seedlings. A chain 37 in the chain case 36 is connected to the sprocket 34 at the outer end of the claw shaft 24 in the left seedling planting case 9 and the sprocket 35 at the outer end of the transverse feed shaft 18 to drive the mechanisms 26 and 27.
is wound around it so that the rotation is transmitted from the pawl shaft 24 to the traverse feed shaft 18.

Further, 38 and 39 are on both sides of the wheel 8, and both side frames 4 and 5 and both seedling planting cases 9,
10, the rear portions of both floats 38, 39 are attached to the bases of the handles 13, 14 via planting depth adjustment rods 40, and the front ends are attached to both side frames 4. ,5
It is attached via a link 41 to be able to move up and down automatically. In this case, both floats 38, 39
The inner surface of the seedling-planting mechanism 26 and 27 are integrally provided with triangular flat portions 42 and 43, and the seedling planting mechanisms 26 and 27 are located above the flat portions 42 and 43, respectively.
Seedling planting mechanism 2 is installed in the rear part of both level parts 42 and 43.
Seedlings will be planted on June 27th.

In this configuration, if seedling mats are supplied onto the seedling platform 17 and the wheels 8 and the seedling planting mechanisms 26 and 27 are driven by starting the engine 2, the rice transplanter will
While moving forward, the seedling platform 17 is reciprocated from side to side by the rotation of the transverse feed shaft 18, and
The seedlings on the seedling table 17 are placed on the seedling planting mechanism 2 that swings up and down.
After the plants are divided one by one by means 6 and 27, they are planted sequentially along two rows in a field that has been leveled in advance by the leveling parts 42 and 43 of floats 38 and 39, respectively.

When the seedling platform 17 is moved laterally during the rice transplanting operation, the present invention provides the sliding boss body 22 that slides back and forth by the rotation of the horizontal feed shaft 18 as described above.
By inserting the engaging piece 46 into the cylindrical receiver 47 attached to the back side of the seedling stand 17, the sliding boss body 22 can be easily inserted into the engaging piece 46 and the receiver 47. Since the cross-feeding shaft 18 is prevented from rotating, a mechanism for preventing the sliding boss 22 from rotating is unnecessary.
Adjustment screws 4 are provided on both left and right sides of 7 for adjusting the position in the left and right direction of the engagement piece 46 that fits inside.
By providing 8 and 49, both of these adjustments 48 and 49 are provided.
49, the relative position of the sliding boss body 22 on the lateral feed shaft 18 and the seedling platform 17 in the lateral direction can be changed. , 27 can be accurately adjusted so that the planting claws do not touch the side walls of the seedling platform 17, and interference between the planting claws and the seedling platform 17 can be reliably prevented.
The engaging piece 46 can freely move in and out of the cylindrical support 47 even during the lateral movement of the seedling platform 17, so that the lateral feeding guide direction of the seedling platform 17, the lateral feeding axis 18, and the axis line are aligned. Even if the parallelism of the engaging piece 46 to the receiver 47 is inaccurate, this non-parallelism
This not only prevents the occurrence of clumps during horizontal feeding, but also reduces the number of man-hours required for processing and assembling the rice transplanter.

In addition, in this type of conventional lateral feeding device, a feeding rod is supported parallel to the rear surface of the seedling table, and a sliding boss body on the lateral feeding shaft is fixed to this feeding rod. However, in the present invention, the engaging piece 46 of the sliding boss body 22 is attached to the cylindrical receiver 47 provided on the back side of the seedling stand as described above.
By inserting the holder 47, the conventional feeding rod becomes unnecessary and the structure can be significantly simplified.Moreover, by making the receiver 47 cylindrical,
Its strength is high, and it has the effect of reducing weight by eliminating the need for the feed rod.

[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 the rice transplanter, FIG. 3 is an enlarged plan sectional view of FIG. FIG. 5 is an enlarged side view of FIG. 1, and FIG. 5 is an enlarged sectional view of FIG. 1...Vehicle frame, 2...Engine, 3...
Transmission case, 4, 5...Side frame, 8...
Wheel, 7... Swing case, 9, 10... Seedling planting case, 26, 27... Seedling planting mechanism, 13, 14
... Control handle, 17 ... Seedling stand, 18 ... Transverse feed shaft, 19 ... Reciprocating screw groove, 22 ... Sliding boss body, 46 ... Engagement piece, 47 ... Cylindrical receiver, 48 ，
49...adjustment screw.

Claims (1)

[Scope of utility model registration request] A cylindrical receiver is provided on the back side of the seedling platform which is attached to the body frame of the rice transplanter so as to be able to move laterally, while a lateral feed shaft having a reciprocating screw groove on the outer periphery is installed on the body frame at the back side of the seedling platform. is mounted substantially parallel to the lateral movement direction of the seedling stand, and the cylindrical receiver is mounted on the sliding boss body which is slidably fitted to the lateral feed shaft so as to engage with the reciprocating screw groove thereof. Provide an engaging piece that fits into the
A lateral feeding device for a seedling stand in a rice transplanter, characterized in that adjusting screws are provided on both left and right sides of the cylindrical receiver to adjust the lateral position of the engaging piece that fits inside the cylindrical receiver.