JPH052982Y2 - - Google Patents

Description

[Detailed description of the invention] "Industrial application field" The present invention relates to a rice transplanter that uses a planting claw to take out one seedling from a seedling platform that moves back and forth from side to side and plant it in a field. The present invention relates to a seedling vertical feeding device that vertically feeds the seedlings on the seedling platform to the lower end of the slope when the seedling platform reaches the end of horizontal movement.

``Prior Art'' Conventionally, as shown in Japanese Utility Model Application Publication No. 60-98324, there has been a technique in which a seedling stand is provided with a vertical seedling feed roller and a clutch is provided to control driving and stopping of the roller.

``Problem to be solved by the invention'' In the prior art, since the vertical feed clutch arm is attached to the vertical feed shaft, it is not possible to easily simplify the structure of the vertical feed shaft that pivotally supports the clutch arm, and the vertical feed Since the clutch arm is rotated around the axis, there are problems in that it is difficult to downsize the clutch arm mounting portion and to secure a space for tensioning the clutch wire.

``Means for Solving the Problems'' However, the present invention provides a seedling vertical feeding device for a rice transplanter in which a seedling tray is provided with a seedling vertical feeding roller and a clutch is provided to control driving and stopping of the roller.
A shifter for turning on and off the clutch is provided on the back side of the ribs between the rows of the seedling platform, and the shifter is mounted rotatably around the axis in the direction of inclination of the seedling platform. The shifter is swingably provided on the rib between the rows, and is configured to rotate the shifter about the axis in the direction of inclination of the seedling stand by swinging the clutch arm.

``Function'' Therefore, the shaft structure of the vertical seedling feeding roller can be easily simplified compared to the conventional one, and the shifter is formed in an elongated shape in the direction of inclination of the seedling table, and the shifter and clutch arm are connected to the lower surface of the inter-row rib. It can be mounted compactly on the vehicle, and by using the ribs between the rows, it is possible to simplify the mechanism for operating the clutch such as the shifter and clutch arm, and to ensure the mounting strength.

"Embodiments" Examples of the present invention will be described below in detail based on the drawings. Figure 1 is an explanatory diagram of the vertical feeding section, Figure 2 is a side view of the riding rice transplanter, and Figure 3 is a plan view of the same.
is a traveling vehicle on which a worker rides, and the rear end of a vehicle body frame 3 on which an engine 2 is mounted is connected to a transmission case 4, and a vehicle for driving in rice fields is connected to both front sides of the transmission case 4 through an axle case 5. front wheel 6
At the same time, a transmission case 7 is connected to both rear sides of the transmission case 4, and a rear wheel 8 for running in paddy fields is supported at the rear end of the transmission case 7. A spare seedling stand 10 is attached to both sides of the bonnet 9 that covers the engine 2, etc., the transmission case 7, etc. is covered by the vehicle body cover 12 forming the step 11, and the driver's seat 1 is placed above the vehicle body cover 12.
3, and a steering handle 14 is provided at the rear of the bonnet 9 in front of the driver's seat 13.

In addition, 15 in the figure is a planting section that is equipped with a seedling stand 16 for multi-row planting, a plurality of planting claws 17, etc., and supports the rear-tilting seedling stand 16 made of synthetic resin with a high front and low back. It is supported by the planting case 20 through guide rails 18 and guide rails 19, which are members, so as to be slidable left and right, and is attached to the planting case 20 through a planting arm 21 and a planting claw drive shaft 22, which are moved by a crank. Attach the planting claws 17. A main float 23 for leveling the planting, and left and right side floats 24a and 24b supported via a planting depth adjustment link 25 and a buffer link 26 are disposed below the planting case 20. , a link hitch 27 is provided on the front side of the planting case 20, and the planting part 15 is connected to the rear side of the traveling vehicle 1 via a three-point link mechanism 30 including a top link 28 and a lower link 29, A hydraulic cylinder 31 for raising and lowering the planting part 15 is interposed between the rear part of the transmission case 4 and the top link 28, and while raising and lowering the planting part 15 by the expansion and contraction operation of the hydraulic cylinder 31, the planting part 15 is raised and lowered. 15 is lowered to land each float 23, 24a, 24b, and one seedling is taken out one by one by a planting claw 17 from a seedling platform 16 that is moved back and forth from side to side and planted. .

Further, in the figure, 32 is a travel gear shift lever, 33 is a planting lift lever, 34 is a planting depth sensitivity adjustment lever, and 35 is a planting depth sensitivity adjustment lever.
is a travel clutch pedal, and 36, 36 are left and right brake pedals.

As shown in FIG. 4, a pair of vertical feed hexagonal shafts 37, 38 are provided on the back side of the seedling table 16 near the inclined lower end.
are suspended horizontally in parallel, and a pair of left and right vertical feed rollers 40, 40 integrally formed on a single cylindrical shaft 39 is provided, and the cylindrical shaft 40 is loosely supported on the hexagonal shafts 37, 38 to form a seedling stand. Two sets of vertical feed rollers 40, 40 are arranged above and below for each of the 16 strips, and a round ring 4 is placed at this position.
1, a pair of rollers 40, 40 are fixed in position, and the seedling table 16 is opened through a window 42 formed in the seedling table 16.
The upper side of each roller 40 is made to protrude from the upper surface.

When the seedling carrier 16 reaches the end of its left-right movement, the lower hexagonal shaft 38 is rotated intermittently via a vertical feed transmission mechanism such as a vertical feed drive cam and a follower cam, which rotates the vertical feed rollers 40 to vertically feed the seedling mat 43 to the seedling take-out port. The upper and lower hexagonal shafts 37, 38 are connected to pulleys 44, 46.
5 and belt 46 are interlocked together,
The hexagonal shafts 37, 38 and the rollers 40 are interlocked and connected by a rotation stopping mechanism 47 so as to be freely connected and disconnected.

The rotation stop mechanism 47 is provided for each thread, and includes a fixed pawl 39a that is slidably fitted and supported by the hexagonal shafts 37 and 38 and provided at one end of the cylindrical shaft 39.
A movable clutch 48 has a movable pawl 48a that engages with the cylindrical shaft 3, and one end of the movable clutch 48 is supported by a fixed collar 49 of the hexagonal shafts 37, 38.
A return spring 50 applies a spring force so as to press toward the 9 side, and a pair of upper and lower chassis 51, 51 fixed to the rear surface of the inter-row ribs 16a of the seedling stand 16 are rotatably supported. arm portions 52a, 52a and 52b to be engaged with the vertically movable clutches 48, 48;
52b and a shifter 52 for disengaging the respective pawls 39a, 48a. Normally, the rotation stop mechanism 47 of each strip in a state in which the pawls 39a, 48a are engaged by the force of the spring 50 causes the upper and lower hexagonal Axis 3
7, 38 and each vertical feed roller 40, and by rotating the shifter 52, the claws 39a, 48a are engaged against the force of the spring 50 via the arm portions 52a, 52a and 52b, 52b. Even when the rotation stop mechanism 47 is in the released state, it is configured to simultaneously stop two sets of vertical feed rollers 40, upper and lower, for each strip.

As shown in FIG. 5, an L-shaped clutch arm 53 for rotating the shifter 52 is provided, and a support shaft 55 is attached to a fixed bracket 54 on the back surface of the inter-strip rib 16a.
The intermediate portion of the arm 53 is rotatably supported through the arm 53, and the pin portion 52c from which the shifter 52 is protruded is inserted into and supported by a long hole 53a formed at one end of the arm 53, while a planting unit clutch (to be described later) The other end of the arm 53 is connected via a wire 58 to a planting unit clutch lever 57 that connects and disconnects the clutch lever 56, and when the arm 53 swings due to the disconnection operation of the clutch lever 57, the shifter 52 is rotated to The rotation stop mechanism 47 is configured to be turned off.

The planting unit clutch 56 has two rows on the left and right outermost rows [seedling stands 16b, 16b, 16c,
The three units 20a, 20b, 20 of the planting case 20 stop the driving of the planting claws 17 of the one row in the center [16c] and the seedling stand 16d, respectively.
The planting unit clutches 56, 56, 56 in each unit 20a, 20b, 20c are connected to the three clutch levers 57, 57, 57 near the driver's seat 13, respectively, in the shifter 59.c. The clutch arm 53 of the rotation stop mechanism 47 and the clutch wire 60 and corresponding strips are interlocked and connected via the clutch wire 58, and when the clutch lever 57 of each unit 20a, 20b, 20c is disconnected, this strip is connected. The driving of the planting claws 17 is stopped, and the vertical feeding of the seedlings by the vertical feeding rollers 40 of this row is also stopped.

As is clear from the above, in the seedling vertical feeding device of the rice transplanter, which is provided with the seedling vertical feeding roller 40 on the seedling platform 16 and the clutch 48 which controls driving and stopping of the roller 40, a shifter is used to turn on and off the clutch 48. 52 between the row ribs 16a of the seedling stand 16
A clutch arm 53 is provided on the back side and is rotatably attached to the shifter 52 about the axis in the direction of inclination of the seedling table 16, and a clutch arm 53 to which the clutch 48 operating wire 58 is connected is swingably provided on the inter-row rib 16a. By swinging the clutch arm 53, the shifter 52 is rotated about the axis in the direction of inclination of the seedling stand 16, and the clutch 48 is turned on and off.

As shown in FIGS. 6 and 7, the two outermost rotation stop mechanisms 47 on the left and right sides are connected to one wire 5, with the clutch arms 53, 53 as a set.
8 to the planting unit clutch lever 57, and is configured to simultaneously stop the vertical feeding of two rows of seedlings corresponding to the units 20a and 20c.

This embodiment is constructed as described above, and when the unit clutch lever 57 corresponding to the left or right two rows is disconnected in order to interrupt the planting of the two rows on the left or right during ridge work etc., the inside of the case unit 20a or 20b is turned off. Planting unit clutch 5
6 becomes the cut state and the driving of the planting claw 17 is stopped, and at the same time, the rotation stop mechanism 47 corresponding to this row becomes the cut state and the rotation of the vertical feed roller 40 is stopped. As a result, if the driving of the planting claw 17 is stopped and the seedlings are no longer taken out, the seedling platform 16
Since the vertical feeding of the seedlings above is also stopped at the same time, the rollers 40 are not applied to the seedling pine 43 except when necessary, and the back surface of the seedling pine 43 is scraped and damaged by the sliding rotation of the roller 40. The overall deformation and partial floating are eliminated, and the vertical feeding of the seedlings can be carried out normally after planting is resumed.

"Effects of the Invention" As is clear from the above embodiments, the present invention provides a seedling vertical feeding device for a rice transplanter, in which a seedling vertical feeding roller 40 is provided on the seedling platform 16, and a clutch 48 is provided to control driving and stopping of the roller 40. , a shifter 52 for turning on and off the clutch 48 is provided on the back side of the inter-row rib 16a of the seedling platform 16, and the shifter 52 is mounted rotatably around the axis in the inclination direction of the seedling platform 16, and the clutch 48 is operated. wire 58
A clutch arm 53 is swingably provided on the inter-row rib 16a, and the shifter 52 is rotated around the axis in the direction of inclination of the seedling stand 16 by swinging the clutch arm 53. In addition, the shaft structure of the vertical seedling feed roller 40 can be easily simplified, and the shifter 52 is formed in an elongated shape in the direction of inclination of the seedling table 16.
2 and the clutch arm 53 can be mounted compactly on the lower surface of the inter-row rib 16a, and by using the inter-row rib 16a, the mechanism for operating the clutch 48 such as the shifter 52 and the clutch arm 53 can be simplified and the mounting strength can be secured. This is something that can be easily achieved.

[Brief explanation of drawings]

Figure 1 is an explanatory diagram of the vertical feeding section, Figure 2 is a side view of the riding rice transplanter, Figure 3 is a plan view of the same, Figure 4 is a side view of the planting section, and Figure 5 is the part shown in Figure 1. 6 is an explanatory view showing a modified structure of FIG. 1, and FIG. 7 is a partially enlarged explanatory view of FIG. 6. 16... Seedling stand, 40... Seedling vertical feed roller, 4
7... Rotation stop mechanism, 56... Planting unit clutch, 57... Planting unit clutch lever.

Claims (1)

[Scope of utility model registration request] In a seedling vertical feeding device of a rice transplanter, which is provided with a seedling vertical feed roller 40 on the seedling platform 16 and a clutch 48 for controlling the driving and stopping of the roller 40, a shifter 52 for turning on and off the clutch 48 is connected to the seedling platform 16. Provided on the back side of the inter-row rib 16a, the seedling stand 16
The shifter 52 is mounted so as to be rotatable about the axis in the inclination direction, and a clutch arm 53 to which the clutch 48 operating wire 58 is connected is swingably provided on the inter-row rib 16a. Then move the shifter 52 onto the seedling stand 1.
6. A vertical seedling feeding device for a rice transplanter, characterized in that it is configured to rotate around an axis in an inclined direction.