JPH052983Y2 - - Google Patents

Description

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

``Prior Art'' Conventionally, as shown in Japanese Utility Model Application Publication No. 60-98324, a vertical feed wheel is freely rotatably supported on a vertical feed shaft extending in the left-right direction of a seedling stand, and A technology was developed to provide a vertical feed clutch to connect the vertical feed wheels.

``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, in the present invention, the vertical feed wheel is freely rotatably supported on the vertical feed shaft extending in the left-right direction of the seedling stand, and the vertical feed wheel body is rotatably supported on the vertical feed shaft. In a planting device for a rice transplanter that is provided with a vertical feed clutch that connects wheels, a vertical feed clutch arm that operates the vertical feed clutch on and off is pivotally supported on the lower surface of the vertical rib of the seedling stand, and the vertical feed clutch arm The present invention is characterized in that a longitudinally-feeding clutch wire connected to the longitudinally-feeding clutch wire extends in the axial direction of the longitudinally-feeding shaft.

``Function'' Therefore, since the clutch arm is pivotally supported on the lower surface of the vertical rib, the clutch arm can be easily provided with support strength by the vertical rib, and the clutch arm can be attached to the lower surface of the seedling stand with a flat and compact structure. In addition, the vertical feed clutch mounting structure of the vertical feed shaft can be configured more simply than before, and the clutch wire can be stretched along the vertical feed shaft, and the seedling stand is reinforced by the vertical feed shaft. The clutch wire can be stored compactly by using the back side, and expansion and contraction of the clutch wire due to elastic deformation of the seedling stand or movement of the clutch arm can be easily prevented.

"Embodiments" Hereinafter, embodiments of the present invention will be described in detail based on the drawings. Fig. 1 is an explanatory plan view of the vertical feeding section, Fig. 2 is a side view of the riding rice transplanter, and Fig. 3 is a plan view of the same. The rear end of the vehicle body frame 3 to be mounted is connected to a transmission case 4, and the front wheels 6 for driving in paddy fields are supported on both sides of the front part of the transmission case 4 via an axle case 5. A transmission case 7 is provided on both sides, and a rear wheel 8 for running in paddy fields is supported at the rear end of the transmission case 7. and a bonnet 9 that covers the engine 2, etc.
In addition to attaching spare seedling stands 10 to both sides, the conduction case 7 and the like are covered by a vehicle body cover 12 forming a step 11, a driver's seat 13 is attached to the upper part of the vehicle body cover 12, and a driver's seat 13 is installed in front of the driver's seat 13. A steering handle 14 is provided at the rear of the bonnet 9.

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 arranged below the planting case 20. At the same time, a planting mission case 27 is provided on the front side of the planting case 20, and the planting mission case 27 is installed on the rear side of the traveling vehicle 1 via a three-point linkage mechanism 30 including a top link 28 and a lower link 29. Hydraulic cylinder 3 that connects the attaching part 15 and raises and lowers the planting part 15
1 is interposed between the rear part of the transmission case 4 and the top link 28, and while the planting part 15 is raised and lowered by the expansion and contraction operation of the hydraulic cylinder 31, the planting part 15 is lowered and each float 23, 24a,
24b is placed on the ground, and one seedling is taken out one by one from a seedling stand 16 which is moved back and forth from side to side by means of a planting claw 17 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 horizontally suspended in parallel, and vertical feed rollers 40, 40, which are a pair of left and right vertical feed members integrally formed on a single cylinder shaft 39 via this outer hexagonal surface, are provided.
A cylindrical shaft 39 is loosely supported on the hexagonal shafts 37 and 38, and two sets of four upper and lower vertical feed rollers 40 are arranged vertically for each row of the seedling stand 16. The upper side of each roller 40 is made to protrude from the opened window 41 to the upper surface of the seedling stand 16.

Further, as shown in FIG. 5, the planting mission case 27 includes a cross-feeding shaft 43 rotated by a power transmission mechanism 42, and a boat-shaped key 44 that engages with a reciprocating thread groove formed on the cross-feeding shaft 43. Transverse feed rod 4 with
5 are arranged in the left and right direction of the traveling aircraft, and the horizontal feed rod 45
Both left and right ends of the seedling table 16 are brought into contact with brackets 46 fixed to the back surface of the seedling table 16, so that the seedling table 16 is configured to reciprocate and laterally move a fixed distance in both the left and right directions of the traveling body.

An operating shaft 4 rotated by the power transmission mechanism 42
A pair of left and right feed cams 48 are protruded from 7, and a hollow cam 49 with a one-way clutch device, which will be described later,
The seedling table 16 is brought into contact with the left and right moving ends of the seedling table 16.
The vertical feed hexagonal shafts 37 and 38 on the back surface are intermittently rotated.

Furthermore, as shown in FIG. 4, the bottom plate 50 of the seedling stand 16 has downward U-shaped holes spaced apart by a dimension approximately equal to the width of the seedling mats 51 so that a plurality of seedling mats 51 can be placed in parallel. Hollow vertical rib 52...
As shown in Fig. 5, a planting unit clutch 53 is attached to each planting case 20 to which planting claws 17 for two rows on the left and right and one row in the center are attached.
A clutch arm 55 with a clutch wire 54 connected thereto is provided so that each clutch 53 can be turned on and off separately.

Furthermore, as shown in FIG.
vertical feed clutches 57 and 57 are engaged and supported on hexagonal shafts 37 and 38 on both sides of the bearing 56, and the longitudinal feed roller 40 is connected to a rib body 58 on the inner circumferential surface of the vertical feed roller 40 via a clutch spring 59. The clutch pawl 60 of the clutch 57 is removably engaged, and the longitudinally moving clutch arm 62 is rotatably supported by the bearing 56 via the support shaft 61.
The clutch arm 62 is engaged and connected to the clutch 57 so that the clutch pawl 60 can be detached from the rib body 58 against the vertical movement roller 40,
Upper and lower vertical feed clutches 57, 57 provided at 40, respectively
Clutch arms 62, 62 are interlocked and connected by a rod 63, and a vertical feed clutch wire 64 is connected to the upper clutch arm 62, and by operating the wire 64, the upper and lower clutches 57, 57 are interlocked and connected. The brake shoe 65 fitted on the cylindrical shaft 39 is brought into pressure contact with the back surface of the seedling platform bottom plate 50 to prevent the roller 40 from rotating freely when the clutch 57 is in the disengaged state.

As is clear from the above, the vertical feed roller 40, which is a vertical feed wheel, is rotatably supported on the vertical feed shaft 37 extending in the left-right direction of the seedling table 16, and the vertical feed roller 40, which is a vertical feed shaft, is rotatably supported. In the planting device of a rice transplanter, which is provided with a vertical feed clutch 57 that connects a vertical feed roller 40 to a hexagonal shaft 37, the vertical feed clutch 5
A vertically-feeding clutch arm 62 for turning on and off 7 is pivotally supported on the lower surface side of the vertically long rib 52 which is a vertical rib of the seedling stand 16, and the vertically-feeding clutch arm 62
A vertically feeding clutch wire 64 connected to the vertically feeding hexagonal shaft 37 is extended in the axial direction of the vertically feeding hexagonal shaft 37, and the clutch wire 64 is stretched along the hexagonal shaft 37.

Furthermore, as shown in FIG. 1, the upper and lower shafts supporting the vertical feed rollers 40, 40 are double shaft structures, and the upper and lower hexagonal shafts 37, 38 are connected to the pulleys 6.
6, 67 and a belt 68, and the left and right hollow cams 49, 49 are attached to the lower hexagonal shaft 38 separated by one thread from the left and right sides, and the left and right upper and lower cylinder shafts 39, 3
9 are connected by pulleys 69, 70 and a belt 71, and the upper cylinder shaft 39 of two rows from the left and right is integrally formed, and the structure of the cylinder shaft 39 of five rows is configured bilaterally symmetrically. Roller 40 for one row in the center...
Clutches 57 are provided near the center, and belts 68 and 71 are provided on both sides, respectively, in order to drive or stop each component separately.

Further, the planting unit clutch arm 55,
Each wire 5 is connected to the vertically feeding clutch arm 62.
As shown in FIG.
Lever stands 73, 73 provided symmetrically on the back of the upper end
Attach the three levers 72 separately to each other, and move the wire 54 from the seedling platform 16 to the planting case 20 in the shortest distance so that the amount of displacement of the wire 54 is minimized when the seedling platform 16 moves from side to side. It is being extended.

This embodiment is configured as described above, and the seedling stand 1
6 is reciprocated from side to side, one seedling is taken out one by one by the planting claw 17, and then planted continuously. contacts the opposing hollow cam 49, the lower hexagonal shaft 38 is rotated by a certain angle by the output of the one-way rotating clutch of the hollow cam 49, and all the vertical feed rollers 40 are rotated with all the vertical feed clutches 57 in the engaged state, The seedling pine 51 is moved downward by a certain amount to the take-out side.

Also, the left (or right) unit clutch lever 7
2, when the planting claws 17, 17 for the two rows on the left (or right) and the four sets of eight vertical feed rollers 40 for the two rows on the left (or right) stop. ,
When the unit clutch lever 72 in the center is operated to disconnect, the one row of planting claws 17 in the center and the two sets of four longitudinal feed rollers 40 in the center are stopped.

Furthermore, Fig. 7 shows a modified example of five-row planting, in which a hollow cam 49 is attached to the lower hexagonal shaft 38 two rows apart from the left.
is attached, and the left and right feed cams 48, 48 are configured to contact the hollow cam 49 alternately every reciprocation, and compared to FIG.
The belt 71 that connects the Holocam 4
9 can be reduced to 1, and the 2 on the left and right below
The cylindrical shaft 39 of the strip can be integrally formed.

Furthermore, Fig. 8 shows a modified example of four-row planting, in which one row in the center of Fig. 1 is omitted to create a four-row structure, and the cylindrical shaft 39 of one row at the bottom of the left and right is divided at the center. The left and right hollow cams 4 are attached to the hexagonal shaft 38 between them.
9, 49, and by operating the left (or right) unit clutch levers 72, 72, the left (or right) two rows of planting claws 17, 17 and the left (or right) two rows 4 This is to stop eight sets of vertical feed rollers 40.

Furthermore, Fig. 9 shows a modification of the 6-row planting, in which the central 1 thread in Fig. 7 is added to the central 2 threads to create a 6-row structure. The planting claws 17, 17 for two rows on the left, center, or right, and the four sets of eight vertical feed rollers 40 for two rows on the left, center, or right are stopped, and the planting claws 17, 17 for two rows on the left, center, or right are stopped, and the vertical feeding rollers 40 are stopped for two rows on the left, center, or right. In both cases, the cylindrical shaft 39 can be integrally formed to form a unit in units of two threads.

Furthermore, Figure 10 shows a modified example of 8-row planting.
The four strips on the right side of Figure 9 are taken as one set, and the left and right sections have the same structure.
At the same time, a hollow cam 49 is attached to the hexagonal shaft 38 under the center position of the seedling stand 16, and one set of two rows is arranged symmetrically around the lever stand 73 on the left and right sides of the seedling stand 16. It consists of 4 rows, and 8 rows are constructed by 4 rows of the same structure on the left and right, and by operating the left (or right) unit clutch lever 72, you can plant 2 rows on the left (or right). Claws 17, 17
and the 4 sets of 8 vertical feed rollers 40 for 2 rows on the left (or right), and by operating the unit clutch lever 72 on the center left (or center right), the center left (or center right) ) with two rows of planting nails 17, 17, and the left side of the center ((or right side of the center)
This is to stop 4 sets of 8 vertical feed rollers 40 for 2 strips, one belt 68 and 4 pairs of upper and lower vertical feed clutches 57... to stop the vertical feed rollers as 1 set of 2 strips. 40 can be driven or stopped.

"Effects of the Invention" As is clear from the above embodiments, the present invention allows the feed wheel body 40 to be freely rotatably supported on the vertical feed shaft 37 extending in the left-right direction of the seedling platform 16, and the vertical feed shaft In the planting device of the rice transplanter, the rice transplanter is provided with a vertical feed clutch 57 that connects the vertical feed wheel body 40 to the rice transplanter 37.
A vertical feed clutch arm 62 that operates the vertical feed clutch 57 on and off is pivotally supported on the lower surface side of the vertical rib 52 of the seedling stand 16, and the vertical feed clutch arm 6
2 is extended in the axial direction of the vertical feed shaft 37, and the clutch arm 62 is pivotally supported on the lower surface side of the vertical rib 52. Support strength can be easily obtained, the clutch arm 62 can be mounted on the lower surface of the seedling stand 16 in a flat and compact structure, and the structure for mounting the vertical feed clutch 57 on the vertical feed shaft 37 can be configured more simply than before. Moreover, the clutch wire 64 can be stretched along the vertical feed shaft 37, and the clutch wire 64 can be stretched along the vertical feed shaft 37.
The clutch wire 64 can be stored compactly by using the back side of the seedling stand 16 reinforced by the
Clutch wire 64 due to elastic deformation of seedling stand 16
This can easily prevent the expansion and contraction of the clutch arm 62 or the movement of the clutch arm 62.

[Brief explanation of the drawing]

Fig. 1 is an explanatory plan view of a vertical feeding section showing an embodiment of the present invention, Fig. 2 is a side view of a riding rice transplanter, Fig. 3 is a plan view thereof, and Fig. 4 is a side view of the planting section. FIG. 5 is a sectional view of the planting section, FIG. 6 is a sectional view of the vertical feeding section, and FIGS. 7 to 10 are plan explanatory views of the vertical feeding section showing other embodiments. 16...Seedling stand, 40...Vertical feed member (vertical feed roller), 57...Vertical feed clutch.

Claims (1)

[Scope of utility model registration request] A vertical feed shaft 3 extending in the left-right direction of the seedling platform 16
In the planting device of a rice transplanter, the vertical feeding wheel body 40 is rotatably supported on the vertical feeding shaft 37, and a vertical feeding clutch 57 is provided to connect the vertical feeding wheel body 40 to the vertical feeding shaft 37. The vertical feed clutch arm 62 to be operated is connected to the vertical rib 52 of the seedling stand 16.
A vertically-feeding clutch wire 6 is pivotally supported on the lower surface side and is connected to the vertically-feeding clutch arm 62.
4 is extended in the axial direction of a vertical feed shaft 37.