JPS622978Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a lateral feeding device for a seedling stand in a rice transplanter.

In other words, the seedling stand is reciprocated in the lateral direction through intermittent engagement of the rack and the rotary cam, and the structure is easy to manufacture without requiring a feed screw or a lateral feed shaft, which are difficult to manufacture as in conventional models. The present invention is to provide a machine that can be operated reliably and well to perform accurate lateral feeding and can be carried out suitably.

Next, the embodiment shown in the drawings will be described.

Figure 1 shows a side view of the rice transplanter, with both wheels 5, 5
An engine 7 is installed above the front part of a float 6 that extends in the longitudinal direction between the two, and a handle 9 is installed rearward and above the rear part of a transmission case 8 that extends from the rear part of the engine 7 to the rear part and upper part of the float 6. A planting depth adjusting lever 13 is interposed between the rear part of the transmission case 8 and the float 6, and a planting depth adjusting lever 13 is interposed between the rear part of the transmission case 8 and the float 6. Scraping parts 12, 12 where the planting claws 11, 11 are exposed
It is constructed in the same way as the conventional two-row planting type.

Reference numeral 1 denotes a seedling mounting stand, which has a structure having two surfaces on which both pine seedlings can be placed, and is supported by a support portion 14 etc. so that the inclined lower end extends into the seedling take-out stand 10 and can reciprocate in the lateral direction. A large number of vertical feed wheels 15, whose portions extending above the surface of the seedling stand 1 near the tip of the lower side of the slope, vertically feed the pine seedlings, are arranged in parallel so as to be driven in the same manner as in the conventional type. A rack 2 having a length corresponding to the movement stroke of the seedling table 1 is fixed in the lateral direction on the lower surface of the seedling table 1.

A gearbox 4 is fixed to the side of the transmission case 8 below the rack 2, and one end of a rotating shaft 16 mounted inside the gearbox 4 projects outside the gearbox 4, and a rotating cam 3 is mounted on the tip thereof. However, the rotary cam 3 is arranged to engage with the rack 2 and move the rack 2 intermittently by one pitch during one rotation while the rotary cam 3 rotates in forward and reverse directions. and configure.

Inside the gearbox 4, each pawl 17
Bevel gears 17 and 18 having shafts a and 18a are loosely fitted to both ends of the rotating shaft 16, and the pawls 17 are provided at both ends of the clutch body 30 spline-fitted to the rotating shaft 16.
claws 30a and 30b that can be engaged and disengaged are formed on a and 18a, and a shaft 20 of a bevel gear 19 that is always engaged with both bevel gears 17 and 18 is mounted on the shaft.

A sprocket 21 is fitted to the outer end of the shaft 20, and a chain 22 driven by a planting arm shaft (not shown) in the planting claw 11 is connected to an idler 2.
3 and 23' are interposed between the chain 22 and the sprocket 21, and a cover 24 is attached to the chain 22 which is aligned with the transmission case 8.

A shaft 26 of a shifter 25 for operating the clutch body 30 is provided protruding outward from the gear box 4.
The tip of an operating rod 29 of a solenoid 28 is connected to the tip of an arm 27 fixed to the tip of the arm 27, and the solenoid 28 is structured so that the operating rod 29 moves in and out alternately as the two switches S1, S2 are alternately operated.The switch S1 supported by the stay 31 is installed so as to come into contact with a protrusion 32 at the bottom of the seedling carrier 1 and operate when the seedling carrier 1 moves to one side in the horizontal direction, and the switch S2 supported by the stay 31' is installed so as to come into contact with a protrusion 32' at the bottom of the seedling carrier 1 and operate when the seedling carrier 1 moves to the other side.

Note that both switches S1 and S2 are connected to protrusions 32 and 3.
2' and actuate the solenoid 28, and during that timing, both switches S1 and S2 are activated.
The vertical feed wheel 1, which has the same structure as the conventional structure, is relayed by
5 operates in the same manner as before and is configured to feed pine seedlings vertically.

Therefore, during rice planting work, the seedling platform 1 reciprocates in the horizontal direction to feed the pine seedlings horizontally, and the vertical feed wheel 15 feeds the pine seedlings vertically, and both planting claws 11, 11 move the block seedlings. Rice planting will be carried out in the same way as in the conventional method, by scraping the rice and planting it on the rice field.

In this state, when the solenoid 28 attracts the operating rod 29, rotates the arm 27, and moves the clutch body 30 to one side by the shifter 25, the pawls 30a and 17a engage, and the chain 2
sprocket 21 that is constantly rotated by
The rotation of is caused by the bevel gears 19, 17 and the clutch body 30.
The rotational cam 3 rotates as shown by arrow A in FIG. 4 and engages intermittently with the rack 2 to move the rack 2 laterally one pitch at a time, thereby moving the rack 2 to the seedling stand. 1 moves horizontally intermittently one pitch at a time as shown by the arrows B, and the planting claws 11 scrape off the pine seedlings as described above.

In this way, when the seedling stand 1 moves to the lateral end as shown by the arrow B, the protruding piece 32 moves to the switch S1.
The solenoid 28 is actuated at the timing of vertical feed, and the shifter 25 is actuated in the opposite direction due to the protrusion of the operating rod 29, and the clutch body 30 is separated from the bevel gear 17 and the pawl 3
0b engages with 18a, and at the same time, the rotating cam 3 begins to reverse in the direction of the reverse arrow A, and as a result, the rack 2 and the seedling stand 1 are intermittently moved one pitch at a time in the direction of the reverse arrow B, and the planting claw 11 is in a state where the block seedlings are newly scraped one after another.

When the seedling stand 1 moves to the end in the direction of the reverse arrow B,
The protruding piece 32' comes into contact with the switch S2 and operates the solenoid 28 again, and the above-mentioned operation is repeated, so that the seedling stand 1 repeatedly moves back and forth.

In this way, the present invention is installed so that the rotary cam is intermittently engaged with the rack provided laterally on the lower surface of the seedling platform so that the seedling platform can be moved intermittently in the lateral direction.
The gear box for rotating the rotary cam in forward and reverse directions is installed and configured so that forward and reverse switching can be performed using switches detected at both lateral moving ends of the seedling stand. The platform can be reciprocated in the horizontal direction, and the reciprocating operation can be automatically performed by operating a switch, ensuring reliable operation and accurate horizontal feeding, which is difficult to manufacture unlike conventional models. It has the advantage that it can be easily manufactured without requiring a feed screw or a lateral feed shaft, and can be suitably implemented.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention; Fig. 1 is a side view of the entire rice transplanter, Fig. 2 is a plan view thereof, Fig. 3 is a side view of the main parts, and Fig. 4 is a part of Fig. 3. A rear view, FIG. 5 is a bottom view which is a part of FIG. 3, and FIG. 6 is a sectional view of a part of the main part. 1...Seedling stand, 2...Rack, 3...Rotating cam, 4...Gearbox, S1, S2...Switch.

Claims (1)

[Scope of utility model registration request] A gearbox that is installed so that a rotating cam is intermittently engaged with a rack provided laterally on the lower surface of the seedling platform to intermittently move the seedling platform in the lateral direction, and that rotates the rotating cam in forward and reverse directions. A lateral feeding device for a seedling stand in a rice transplanter, characterized in that it is installed and constructed so that forward and reverse switching operations can be performed by switches detected at both lateral moving ends of the seedling stand.