JPH0757127B2 - Rice planting equipment for rice transplanters - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a rice transplanter, which is a rice transplanter for dividing seedlings from a seedling mat on a seedling mounting table into individual seedlings and then planting the seedlings in a field. It is about.

[Conventional technology]

Conventionally, this type of seedling planting device, for example, as described in Japanese Patent Publication No. Sho 49-27762, while connecting the base end of the planting rod having a split claw at the tip to the machine side via a fan link. , The middle part of the planting rod is pivotally attached to the tip of a crank fixed to a claw shaft that is rotationally driven by an engine, and the rotation of the crank causes the planting rod to draw a closed loop trajectory at the tip of the split claw. It was to swing up and down.

However, this conventional vertical swing type seedling planting device has a split claw attached to the planting rod of the seedling mounting table as compared with the rotary type that is described in, for example, Japanese Utility Model Publication No. 33-18922. Since it moves up and down with the posture facing in the direction, it has the feature that it can be planted in the field scene almost vertically on the seedlings taken out from the seedling mounting table with the dividing claws, but compared to the rotary type, Vibrations are generated due to vigorous vertical rocking, and this vibration increases in proportion to the speed of vertical rocking. The planting speed cannot be increased because only one seedling can be planted.

Therefore, the inventor of the present invention has filed a patent application (Japanese Patent Application No. 58-175091).
No.), based on the rotary type, the tip of the split claw on the two left and right planting rods attached to the rotary body is configured to swivel vertically with the posture always facing the seedling table. By doing so, we proposed a seedling planting device that has the features of both a rotary type and a vertical swing type planting device.

[Problems to be Solved by the Invention]

However, in the rotary type seedling planting apparatus according to the invention of the prior application, when a rotating body having two planting rods is to be stopped at one phase position during one rotation, when the rotating body is stopped, the seedlings are placed on the seedling mounting table. Since the seedlings will be wastefully cut and divided twice from the seedling mat by the dividing claws on both planting rods, wasteful consumption of the seedlings will increase.

Moreover, if the configuration is such that it stops at one phase position during one rotation, the rotation of the rotating body will stop when the split claws on either one of the planting rods have entered the field scene, so each split In addition to damaging the nails, inspect each split nail
There was also a problem that the adjustment could not be performed easily.

It is an object of the present invention to provide a rotary type seedling planting apparatus that solves these problems.

[Means for Solving the Problems]

In order to achieve this object, the present invention provides: "A rotary body is supported on a rotary shaft that is substantially horizontal to a rice transplanter machine body and substantially parallel to a seedling stand, and that receives power from a power source. The rotating body is provided with planting rods having split claws at positions on both left and right sides which are separated from the rotating shaft to which it is attached by an appropriate distance in the radial direction, and the two planting rods are rotated by one rotation. In a seedling planting device of a rice transplanter configured to make one rotation in the opposite direction to the rotation direction, in the power transmission path to the rotating body, the rotation at a half rotation phase position during one rotation of the rotating body. While providing a localization value stop clutch that can stop the rotation of the body, the stop position of the rotating body by this fixed position stop clutch, the split claws in both the planting rods are both away from the field scene out of the outer peripheral surface of the rotating body. Raised to a position higher than the lower peripheral surface Set it to the position. "

[Operation and effect of invention]

With this configuration, the rotation of the rotating body provided with the two planting rods can be stopped at the half-rotation phase position during one rotation of the rotating body by disengaging the fixed-position stop clutch. Therefore, when the rotation of the rotating body is stopped, the seedlings on the seedling mounting table can be unnecessarily divided.

Moreover, by setting the stop position of the rotating body to a position in which the split claws on both planting rods are both separated from the field scene and raised to a position higher than the lower outer peripheral surface of the outer peripheral surface of the rotating body, It is possible to reliably prevent the split claws on both planting rods from stopping when they have entered the field scene, and when the rotating body is stopped, the lower outer peripheral surface of the outer peripheral surface of the rotating body is on both planting rods. By being located below the split claw, the outer peripheral surface can protect the lower side of the split claw in the planting rod.

Therefore, according to the present invention, in the rotary type seedling planting device, it is possible to reduce wasteful consumption of seedlings when stopping the planting, while the split claws in both planting rods have invaded the field scene or the seedling mat. By stopping in this state, it is possible to reliably prevent damage to each of the split claws, and moreover, while the rotation of the rotary body is stopped, the lower side of the split claws on both planting rods is covered by the outer peripheral surface of the rotary body. By being able to protect, it is possible to reliably prevent the split claws of the two planting rods from touching and damaging the ridges when the rice transplanter crosses the ridges, so that there is an effect that the safety of the split claws of the two planting rods can be improved.

〔Example〕

Hereinafter, an embodiment of the present invention will be described with reference to the drawings. In the drawings, reference numeral 1 represents a transmission case in a fuselage of a rice transplanter,
A boss body 2 projects substantially horizontally and laterally on both left and right sides of the transmission case 1 and substantially parallel to the seedling stand 10. Inside the boss bodies 2, an engine (not shown) mounted on a rice transplanter machine is shown. The rotary shaft 3 which is driven to rotate by the power transmission from
An oval-shaped and hollow rotary body 4 is fitted to each of the protruding ends of the rotary shaft 3 from the bosses 2. The rotary bodies 4 are located in the right direction of arrow A in a side view. It is configured to be rotated.

A sun gear 5, which is rotatably fitted to the boss body 2 and configured to be rotatable with respect to the rotator 4, is arranged at a central portion of both of the rotators 4. The case 1 is non-rotatably locked by an appropriate rotation phase adjusting means (not shown).

A support shaft 6 is rotatably supported on the left and right ends of both the rotating bodies 4 at a position where the distance (L) from the rotating shaft 3 is equal to each other, in parallel with the rotating shaft 3 and non-rotatably with respect to the rotating body 4. , A hollow planting shaft 7 is rotatably fitted on the support shaft 6,
One end of the planting rod 8 is projected to the outside of the rotating body 4, and a planting rod 8 having a split claw 9 extending toward the seedling table 10 is attached to the projecting end of each planting shaft 7, while the rotation of the planting rod 8 is performed. An intermediate shaft 11 is rotatably supported in the body 4 at an intermediate position between the rotary shaft 3 and each planting shaft 7 in parallel with both shafts.
An intermediate gear 12 which meshes with the sun gear 5 and has the same number of teeth as the sun gear 5 is fitted on the upper portion 11.

The interlocking gear 13 having the same number of teeth as the intermediate gear 12 is fitted on the intermediate shaft 11, while the interlocking gear 13 on the intermediate shaft 11 has the same number of teeth as the interlocking gear 13 on the planting shaft 7. By interlocking the interlocking gear 14 that constantly meshes with this, and interlockingly connecting the intermediate shaft 11 and the planting shaft 7 with the interlocking gears 13 and 14, the planting shaft 7 rotates by one rotation of the rotating body 4. It is configured to rotate once in the direction opposite to the rotation direction of the body 4.

On the other hand, the rotating shaft 3 in the transmission case 1 is provided with a stop mechanism 15 which also serves as a clutch. The stop mechanism 15 also serving as the clutch includes a driven bevel gear 18 rotatably fitted on the rotary shaft 3 as shown in FIGS. 5 and 6, and this driven bevel gear.
A driving bevel gear 17 meshing with 18, a drive shaft 16 for transmitting the rotation of an engine (not shown) to the driving gear 17, a driving clutch 19 integrally formed at one end of the driven bevel gear 18, a rotating shaft 3 It consists of a fixed position stop clutch 20 that is non-rotatably and slidably fitted by spline fitting, etc., and a fixed clutch 21 fixed to the inner surface of the transmission case 1, and the localization value stop clutch 20 is driven by a spring 22. The clutch 19 is always urged so as to be meshed, and the meshing of the rotary shaft 3 is driven by the meshing, while the shifter lever 23 engaged with the localization stop clutch 20 is connected to the handle of a rice transplanter. By connecting to a planting operation lever (not shown) provided at an appropriate location via a wire 24, and by operating the planting operation lever, the localization value stop clutch 20 slides in a direction away from the main driving clutch 19 And meshing is disengaged against the latch 19, substantially simultaneously with power transmission to rotation shaft 3 expires,
The localization stop clutch 20 meshes with the fixed clutch 21 so that the rotation of the rotary shaft 3 stops, and when the localization stop clutch 20 and the fixed clutch 21 mesh with each other,
The pair of claws 20a, 20b on the side of the localization value stop clutch 20 are
As shown in FIG. 6 with respect to the pair of claws 21a and 21b on the fixed clutch 21 side, the split claws 9 of both the planting rods 8 of the rotary body 2 together with the pair of claws 21a and 21b from the farm scene 25 are shown in FIG. The rotary body 2 is configured so as to be engaged with the outer peripheral surface of the rotating body 2 at a phase position which is elevated to a position higher than the lower peripheral surface.

In this configuration, when the rotating body 4 revolves in the right direction of the arrow A by the rotating shaft 3 thereof, the intermediate gear 12 meshing with the sun gear 5 that cannot rotate with respect to the transmission case 1 revolves with the revolution of the rotating body 4. , The rotation angle of the revolution is the same as the rotation angle in the right direction of arrow B.
The planting shaft 7 that is interlocked via 3, 14 rotates on the left side of the arrow C, that is, in the direction opposite to the revolving direction of the rotating body 4 by the rotation of the intermediate gear 12, and therefore the planting rod 8 attached to the planting shaft 7 is attached. Means that the split claw 9 turns about the rotary shaft 3 with the split claw 9 facing the seedling placing table 10 as shown in FIG. Ten
When descending from the top to the side facing the bottom, one seedling was cut and split from the seedling mat on the seedling mounting table 10 at the tip of the split claw 9, and then in the field scene 25 near the lower limit of the fall. After planting, it rises from the farm scene 25 after that.

Then, in the direction turning in rice planting work, in order to stop seedling planting, by sliding the localization stop clutch 20 away from the driving clutch 19 by operating the planting operation lever, the localization fixed clutch 20 is driven. Almost at the same time when the engagement with the clutch 19 is disengaged and the power transmission to the rotating body 2 is interrupted, the localization value stop clutch 20 engages with the fixed clutch 21 to stop the rotation of the rotating body 2 and Planting stops.

In this case, the localization value stop clutch 20 meshes with the fixed clutch 21 at two positions that are 180 degrees apart during one rotation of the rotating body 2 and the split claws 9 of one of the two planting rods 8 are separated. Since it was set to be performed only at the position where it was raised from the field scene 25, the rotating body 2
When the rotation is stopped, the rotary body 2 only makes a half rotation at most, and the split claw 9 in one of the planting rods 8 attached to the rotary body 2 causes the split claw 9 to move the seedling table 10 only once. It can only be passed.

In addition, it is possible to reliably prevent the split claws 9 of the two planting rods 8 from stopping in a state of invading the field scene 25, and
While the rotation of the rotating body 2 is stopped, the lower outer peripheral surface of the outer peripheral surface of the rotating body 2 is located below the split claws 9 of the two planting rods 8.
The lower side of the split claw 9 in the planting rod 8 can be protected.

In addition, the interlocking gears 13 and 14 having the same number of teeth that interlock the intermediate shaft 11 and the planting shaft 7, and the center (O) of each of these gears is appropriately dimensioned from the rotation center of each of the shafts 11 and 7 (e. ) Is configured as an eccentric gear, the rotation of the planting shaft 7 to the left along with the revolution of the rotating body 4 to the right, the eccentric type interlocking gear 13 is rotated during one rotation. Since the diameter difference between the rotating body 4 increases or decreases the rotation speed of the rotating body 4, the rotation of the planting shaft 7 to the left becomes slower than the revolution of the rotating body 4. However, when the planting rod 8 descends so as to approach the field scene 15 and the rotation of the planting shaft 7 to the left becomes faster, it corresponds to the time when the planting rod 8 rises to approach the upper limit of rise. By setting as described above, each planting rod 8 is rotated by the rotating body 4 when descending so as to approach the field scene 15. Rotate to the left rather than the revolution and change the posture downward, and when approaching the upper limit of the rise, move further left than the revolution of the rotating body 4 to the left and rotate the posture arbitrarily to change the posture upward, so each planting The closed loop of the locus of movement of the tip 9a of the split claw 9 of the rod 8 is a closed loop curve 16 which is elongated in the vertical direction and is elliptical as shown by the chain double-dashed line in FIG.

In the above embodiment, the sun gear 5, the intermediate gear and the intermediate gear are used as means for rotating the planting shaft 7 once in the opposite direction by one rotation of the rotating body 4.
A planetary gear mechanism including 12 and interlocking gears 13 and 14 is shown, but the sun gear 5 is replaced by a pulley, and rotation is performed by other means such as belt transmission between the pulley and the planting shaft 7. It goes without saying that the planting shaft 7 may rotate once in the opposite direction per one rotation of the body 4.

[Brief description of drawings]

The drawings show an embodiment of the present invention. Fig. 1 is a front view, Fig. 2 is a plan view, Fig. 3 is an enlarged sectional view taken along line III-III in Fig. 1, and Fig. 4 is IV- in Fig. 3. FIG. 5 is a sectional view taken along line IV, FIG. 5 is an enlarged view of a stop mechanism that also serves as a clutch, and FIG. 6 is a sectional view taken along line VI-VI of FIG. 1 ... Transmission case, 3 ... Rotating shaft, 4 ... Rotating body, 5 ...
… Sun gear, 7 …… planting shaft, 8 …… planting rod, 9 ……
Dividing claw, 10 ... Seedling table, 11 ... Intermediate shaft, 12 ... Intermediate gear, 13,14 ... Interlocking gear, 15 ... Clutch stop mechanism, 19 ... Driving clutch, 20 ... Localization value Stop clutch,
21 …… Fixed clutch.

Claims (1)

[Claims] Claim: What is claimed is: 1. A rotary body is fixed to a rotary shaft that is supported substantially horizontally to the body of the rice transplanter and substantially parallel to the seedling stand, and that receives power from a power source. At the left and right ends, which are separated from the rotation axis by an appropriate distance in the radial direction,
Arranging a planting rod with split claws,
In a seedling planting device of a rice transplanter configured to make one rotation in a direction opposite to the rotation direction during one rotation of the rotating body, a half rotation during one rotation of the rotating body in a power transmission path to the rotating body. While the fixed position stop clutch that can stop the rotation of the rotating body at the phase position of the rotating body is provided, the stop position of the rotating body by the localization value stop clutch is set so that the split claws in both the planting rods are both separated from the field scene. A seedling planting device for a rice transplanter, which is set at a position elevated to a position higher than the lower outer peripheral surface of the outer peripheral surface of the body.