JPH046489Y2 - - Google Patents

Description

[Detailed explanation of the invention] (a) Industrial application field The present invention relates to a rice transplanter for planting pine-shaped seedlings in fields.

(b) Conventional technology Conventional rice transplanters that plant pine-shaped seedlings in fields are
A means for preventing the part scraped off from one side of the pine-like seedlings by a planting rod from falling off, a means for preventing the pine-like seedlings from floating up, and a means for preventing the part of the pine-like seedlings from rising along the ridges, etc. Separate means were provided to prevent it from being drawn out.

(c) Problems to be solved by the invention The rice transplanter has a means for preventing the pine-like seedlings from falling down, a means for preventing the pine-like seedlings from floating up, and a means for preventing the pine-like seedlings from being sent out. Since the means and means were provided separately, various devices were complicated on the upper part of the seedling stand, which became an obstacle to sending out the seedlings and significantly increased costs.

(d) Means for solving the problems The present invention attempts to solve the above-mentioned problems by combining the three means mentioned above into a single means. In a rice transplanter in which a rice transplanter is installed on a machine frame and a planting rod is set opposite to a seedling sending part of the seedling stand, near the seedling sending part of the seedling stand,
A regulating rod, which is approximately L-shaped when viewed from the side, is pivotally supported for forward and backward tilting so as to be in a seedling-holding posture and a non-seedling-holding posture, and the lower part of the regulating rod is placed at the upper position of the seedling delivery section to place the seedlings. It is formed into a protruding part that is bent to protrude toward the stand and holds down the seedlings in a non-seedling holding position, and a protrusion that sticks into the seedling bed is provided at the tip, and the regulating rod is operated intermittently at the horizontally moving end of the seedling stand. The driving mechanism is characterized in that the protrusion is connected to the seedling bed part during the lateral movement of the seedling platform, and comes out when the lateral movement end is reached.

(E) Action While reciprocating the seedling stand containing the pine-shaped seedlings in the horizontal direction, the pine-shaped seedlings are scraped off one by one from one side using a planting rod and planted one by one.

While planting the seedlings, the regulating rod sticks the protrusion at its tip into the seedbed to prevent the pine-shaped seedlings from falling off, and when the seedling platform reaches the end of the horizontal movement, The intermittent drive mechanism operates and rotates the regulating rod so that its tip side rises, so that the protrusion comes out of the seedbed of the pine-shaped seedlings, and at this time, the feeding device operates to feed out the pine-shaped seedlings, during which time,
A protruding portion of the lower part of the regulating rod toward the seedling stand comes into contact with the seedling bed and prevents it from floating up.

Furthermore, when dispensing some of a plurality of pine-shaped seedlings along a ridge, etc., the regulation rod can be rotated toward the feeding side while pulling the pine-shaped seedlings upward. The L-shaped bent portion descends so as to come into contact with the end face of the seedbed, thereby receiving the pine-shaped seedlings.

(F) Embodiment The drawing shows an embodiment of the present invention, and
1 is equipped with an engine 2 at the front, wheels 3, 3 are supported by swing chain cases 4, 4 on both sides of the middle section, a planting device 5 is attached at the rear, and floats 6 are installed at the lower part of the front and rear... The planting device 5 has a seedling stand 8 installed at the rear of the transmission case 7 so as to be able to reciprocate in the horizontal direction, and each seedling on the seedling stand 8 is mounted on the front part of the machine. A plurality of planting rods 9 corresponding to the mounting section are provided so as to move up and down,
The lower surface of the seedling platform 8 on the delivery side is supported by a support frame 11 having an apron 10 and an auxiliary frame 12 immediately behind the support frame 11, and a number of feeding wheels 13 are provided in a cutout window bored in the bottom plate between them. The upper part of... is protruding.

Then, on the side walls 14, 14 and partition wall 15 of the seedling stand 8, there are U-shaped brackets 16, respectively.
..., 17, 17 are screwed together and the outer plate 17 of the brackets 17, 17 is attached to the side walls 14, 14.
a, 17a are raised, and this outer plate 17
The brackets 1 rotatably support a shaft 18 between the upper portions of the brackets 1a and 17a, and face each other across the seedling mounting part.
6, 16, 17, 17 (low plates) have long holes 19...
A gate-shaped frame 20 is bored and straddles the seedling section...
The pin 21 protruding from the bottom of the long hole 19...
The upper ends of a large number of regulating rods 23, which are loosely fitted into the gate-shaped frame 20 and which intrude between the seedling rows of the pine-shaped seedlings 22 grown by row sowing, are fixed to the top of the gate-shaped frame 20.
A push rod 24 corresponding to the center part of the seedling mounting part of the shaft 18 is fixed to the middle part.

Further, as shown in FIG. 3a, the regulating rod 23 is bent in half at the bent portion a to form an L-shape when viewed from the side, and the lower part is bent in an inverted C-shape, and the tip end is hooked. The above-mentioned inverted F-shaped protrusion b is formed on the protrusion 23a, and the above-mentioned inverted F-shaped protrusion b is used as a seedbed when planting seedlings while moving the seedling stand laterally, and when feeding the seedlings vertically after reaching the end of the transverse movement. (including those made of soil, foam, or other soil).

The intermittent drive mechanism includes a bracket 25 integral with the outer plates 17a, 17a and the auxiliary frame 12.
A support pipe 27 fixed to a support plate 26 screwed to the support pipe 27, a cylinder 29 rotatably inserted through the support pipe 27, having an abutment plate 28 fixed to its lower end and a wing plate 29a at its upper part. Vertical axis 3 with fixed
0 and the support frame 11 with a pair of long and short limit bodies 31, 32 screwed at the same distance as the lateral movement range of the seedling stand 8, and directed downward from the end of the shaft 18. protruding plate 3
The pin 34 of No. 3 abuts on the wing plate 29a.

In addition, by connecting the receiving plate 35 projecting from the lower part of the gate-shaped frame 20 to the receiving plate 37 projecting from the lower side of the bracket 17 via the tension spring 36, The installed passive plate 38 is pressed against the press rod 24, and the receiving plate 39 of the support pipe 27 and the receiving plate 40 of the cylindrical body 29 are connected by a tension spring 41 to bias the vertical shaft 30 downward. The wing plate 29a is tensilely biased by a return spring 42 in a direction away from the pin 34, and a stopper 43 attached to the outer plate 17a limits the return of the plate 33.

Reference numeral 44 denotes a diagonal leaf holding plate that connects the front upper portions of the left and right outer plates 17a, 17a.

In the rice transplanter described above, during the planting operation, the seedling platform 8 reciprocates in the lateral direction, and the planting rod 9 moves up and down to scrape off the pine-shaped seedlings 22 one by one and plant them on the rice field.

At that time, during the horizontal movement of the seedling platform 8, the contact plate 28
is in the position shown by A in Figure 3b, and the wing plate 29
Since a does not push out the pin 34, the regulating rod 2
3 is in the position A' in Figure 3c,
The protrusion 23a at the tip sticks to the seedbed part and prevents the pine-shaped seedlings 22 from falling off, and the seedling stand 8
When it reaches the end of lateral movement, one end or the other end of the contact plate 28 is received by either one of the limit bodies 31 or 32, and the vertical shaft 30 is rotated by a predetermined angle in the same direction to take the position B. As the vane plate 29c pushes out and rotates against the return spring 42, the regulating rod 23 tilts together with the gate-shaped frame 20 that tilts around the pin 21, and assumes the position shown in FIG. The protrusion 23a comes out of the seedbed, and the protrusion b presses the seedbed just above the feed-out wheel 13. In this state, the feed-out wheel 13 is intermittently driven to feed out the pine-shaped seedlings 22, and then to the seedling stand 8.
moves in the opposite direction, the abutting plate 28 touches the limit body 3.
1 or 32, and the regulating rod 23 returns to its original position
to return to.

Although the thickness of the seedbed part is irregular, the lower end position of the long hole 19 is connected to a pine-shaped seedling 22 with a thin seedbed part.
When the pine-shaped seedlings 22 in the thick seedbed are fed, the regulating rod 23 is pushed up by the seedbed, and the gate-shaped frame 20 and pin 21 rise accordingly. The pin 21 is guided into the elongated hole 19.

Furthermore, when planting narrower than the specified width along a ridge, etc., some of the pine-shaped seedlings 22 are pulled upward, and then the regulating rod 23 is rotated as shown by C in FIG. When a is lowered and engaged with the front end surface of the seedbed section, it is possible to prevent the pine-shaped seedlings 22 from being sent out. It is possible to maintain the lowered posture of the bent portion a.

Next, another example of the intermittent drive device will be explained with reference to FIGS.
2' have the same length, and since the vertical shaft 30 rotates in the forward and reverse directions, this is changed to unidirectional rotation to drive the shaft 18. A guide case 45 having a guide cover 44 is fixed to the outer plate 17a, and a horizontal shaft 47 is rotatably supported by bearings 46, 46 integral with the guide case 45. Then, sliding plates 49a and 49b whose bent portions are displaced back and forth are loosely fitted into the upper and lower notch grooves 48 and 48 provided in the guide case 45, and a pair of upper and lower projections are formed on the link plate 50 that is integral with the horizontal shaft 47. 51, 51 are provided, and those protrusions 5
1 and 51 loosely fit into the notches of the sliding plates 49a and 49b, and the upper wing plate 29b is inserted into the upper sliding plate 49a.
On the outside of the lower wing plate 29c, the lower sliding plate 49
An arm 52 fixed to the tip of the horizontal shaft 47 is connected to the plate 33 by a link 53, and the other end of the arm 52 is pulled downward by a spring 54 and a stopper. It is accepted at 55.

When the seedling stand 8 moves laterally and the planting rod 9 is in operation for planting, the protrusion 23a at the tip of the regulating rod 23 is stuck in the seedling part as in the above-mentioned embodiment, and the seedling stand 8 reaches the left side lateral movement end and the cantilevered contact plate 28' contacts one of the limit bodies 31', it rotates to the right in FIG. 9 and comes into contact with the right limit body 32'. When touched, it rotates to the left.

At this time, the sliding plate 49a is pulled out by the vane plate 29b, and the sliding plate 49b is pushed in by the vane plate 29c, so that the vertical shaft 30 rotates in the same direction,
Along with this, the shaft 18 rotates in the same manner as in the previous embodiment, and while the seedling stand 8 is moving laterally, the protrusion 2
3a sticks into the seedbed to prevent the pine-shaped seedlings 22 from sliding down, and at the end of the lateral movement, the protrusion 23a slips out of the seedbed, and the protrusion b presses the upper surface of the seedling in the same way as during lateral movement, and the seedling When preventing the feeding of the seedlings, the bent portion of the regulating rod 23 can be lowered to catch the end face of the seedbed.

(g) Effects of the invention As described above, the present invention provides a rice transplanter in which a seedling platform 8 that reciprocates laterally is installed on the machine frame, and a planting rod 9 is provided opposite to the seedling delivery portion of the seedling platform 8. In the above, the seedling stand 8
A regulating rod 23, which is approximately L-shaped when viewed from the side, is pivoted toward the seedling delivery section so that it can be tilted back and forth to take a seedling-holding posture and a non-seedling-holding posture. A protrusion 23a is formed at the upper part of the seedling sending part to protrude and bend toward the seedling platform 8 side to hold the seedlings in a non-seedling holding position, and the protrusion 23a is inserted into the seedling bed part at the tip.
is provided, and the regulating rod 23 is connected to an intermittent drive mechanism that operates at the lateral movement end of the seedling platform 8, so that the protrusion 23a sticks to the seedbed part during the lateral movement of the seedling platform 8 and reaches the lateral movement end. Then, the single regulating rod 23 tilts in conjunction with the lateral movement of the seedling platform 8, and when the seedling platform 8 reaches the end of the lateral movement, the pine seedlings are removed. When sending out the seedlings, the protruding part b is bent to protrude toward the seedling platform 8 side at the upper position of the seedling sending part and becomes a seedling holding part in a non-seedling holding position, presses the bed soil part,
In this state, the seedlings can be sent out reliably, and the protrusions 23a prevent the pine-shaped seedlings 22 from slipping down by sticking into the seedbed when the seedling platform 8 moves laterally to perform planting. At the end of the lateral movement, the pine-shaped seedlings 22 will not slip out of the seedbed and become an obstacle to sending out the pine-shaped seedlings 22, and when it is desired to omit some planting along the ridge, etc., the same regulating rod 23 By rotating the L-shaped bent part a downward, it is possible to prevent the pine-shaped seedlings 22 in the area where planting is not performed from descending to the sending part, and the seedling guide stopper and its accompanying This simplifies the structure, significantly reduces costs, and allows the seedling guide stopper to be easily linked to the operation of the seedling platform 8.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention,
Figure 1 is a side view of the rice transplanter, Figure 2 is a front view of the main parts, Figure 3a is a vertical sectional view of the same, Figure 3b is a plan view of a part of the intermittent drive mechanism, Figure 3c is Action diagram, 4th
The figure is a bottom view of the contact plate and the limit body, FIG. 5 is a side view showing the main parts of the other intermittent drive mechanism, FIG. 6 is a side view of the same passive part, FIG. 7 is a sectional view of the above, and The figure is a front view of the guide case and the sliding plate, and FIG. 9 is a bottom view of the activation section. 8... Seedling stand, 9... Planting rod, 17a... Outer plate, 18... Shaft, 19... Long hole, 20... Portal frame, 21, 34... Pin, 23... Regulating rod ,
24... Push rod, 28... Contact plate, 29a, 29
b, 29c... Wing plate, 30... Vertical axis, 31, 3
1', 32, 32'...Limit plate.

Claims (1)

[Scope of utility model registration request] A seedling platform 8 that reciprocates laterally is installed on the machine frame,
In a rice transplanter in which a planting rod 9 is arranged opposite to the seedling sending-out portion of the seedling loading stand 8, a regulating rod 23, which is approximately L-shaped in side view, is tilted back and forth near the seedling sending-out portion of the seedling loading stand 8. The lower part of the regulating rod 23 is bent to protrude toward the seedling platform 8 side at the upper position of the seedling sending part, so that it can be in the non-seedling holding position. A protrusion 23a is formed on the protrusion b for holding down the seedlings, and a protrusion 23a is provided at the tip to pierce the seedbed, and the regulating rod 23
The protrusion 23a is connected to an intermittent drive mechanism that operates at the lateral movement end of the seedling platform 8 so that the projection 23a sticks to the seedbed part while the seedling platform 8 is moving horizontally, and comes out when the seedling platform 8 reaches the lateral movement end. A seedling guide stopper for a rice transplanter featuring: