JP6956689B2 - Riding rice transplanter - Google Patents

Description

The present invention relates to a configuration for supplying seedlings to a seedling stand of a seedling planting device in a passenger-type rice transplanter.

In a passenger-type rice transplanter in which a seedling planting device is supported at the rear part of the machine body, as disclosed in Patent Document 1, a spare seedling stand provided with a plurality of mounting parts along the vertical direction is used as the machine body. There is something supported in the front part of.

Japanese Unexamined Patent Publication No. 2006-168512

When the number of seedlings on the seedling stand of the seedling planting device is reduced, the operator of the passenger-type rice transplanter interrupts the planting work and stops the aircraft. Next, the driver stands up from the driver's seat, reaches forward, takes out the seedlings from the resting part of the spare seedling stand at the front of the aircraft, turns to the rear while holding the seedlings by hand, and holds it in his hand. The work of replenishing the seedlings on the seedling stand is performed.
As described above, since the supply of seedlings to the seedling stand requires a relatively large operation for the driver, there is room for improvement in terms of workability of supplying seedlings to the seedling stand.

An object of the present invention is to improve the workability of supplying seedlings to a seedling stand in a passenger-type rice transplanter.

The passenger-type rice transplanter of the present invention
A seedling planting device provided with a seedling stand and supported at the rear part of the machine body, and a spare seedling stand provided with a plurality of mounting portions along the vertical direction and supported by the machine body are provided.
A relay unit arranged between the spare seedling stand and the seedling stand,
Among the plurality of pre-described placing parts of the preliminary seedling stand, the posture can be freely changed to the posture extending over the selected pre-described placing part and the relay part, and the seedlings of the selected pre-described placing part are placed in the pre-described placing part. a supply unit that can be supplied to the relay unit from,
The mounting unit feeding device that supplies the seedlings of the above-mentioned storage unit to the supply unit,
A supply unit feeding device for supplying seedlings of the supply unit to the relay unit is provided.
The seedlings of the selected pre-described place are supplied from the pre-described place to the relay part via the supply part, and are supplied from the relay part to the upper part of the seedling stand.

According to the present invention, the supply unit is set to a posture extending over the selected mounting unit and the relay unit by changing the posture of the supply unit with respect to a plurality of mounting units of the reserve seedling stand. Can be done. As a result, the seedlings in the mounting section of the spare seedling stand can be supplied to the relay section via the supply section, and the seedlings supplied to the relay section are supplied from the relay section to the upper part of the seedling stand. can do.

When there are no more seedlings in the selected mounting section on the spare seedling stand, the posture of the feeding section may be changed to set the feeding section to a posture extending over another mounting section and the relay section. Thereby, by performing the same operation as described above, the seedlings of another mounting portion of the spare seedling stand can be supplied to the upper part of the seedling stand.

As described above, according to the present invention, the driver takes out the seedlings from the mounting portion of the spare seedling stand, looks back while holding the seedlings by hand, and replenishes the seedlings held in the hand to the seedling stand. The seedlings in the resting part of the spare seedling stand can be supplied to the upper part of the seedling stand while being supported by the supply part and the relay part, so that the seedlings can be replenished to the seedling stand. Workability can be improved.

According to the present invention, in a state where the supply unit is set to the posture extending over the selected mounting unit and the relay unit, the loading unit feeding device and the feeding unit feeding device are operated to mount the spare seedling stand. It becomes possible to easily supply the seedlings of the standing part to the supply part and from the supply part to the relay part, and it is possible to improve the workability of supplying the seedlings to the seedling stand.

In the present invention
It is preferable that a relay unit feeding device for supplying the seedlings of the relay unit to the upper part of the seedling stand is provided.

According to the present invention, in a state where the seedlings are supplied to the relay unit, by operating the relay unit feeding device, the seedlings of the relay unit can be easily supplied to the upper part of the seedling stand, and the seedlings can be placed. It is possible to improve the workability of supplying seedlings to the table.

In the present invention
The supply unit is supported so as to swing up and down around the axis in the left-right direction of the front portion of the relay unit.
It is preferable that a posture changing device for changing the posture of the supply unit by swinging the supply unit up and down is provided.

According to the present invention, since the posture of the supply unit can be changed by the posture change device, it becomes possible to easily set the posture of the supply unit to the selected mounting unit and the relay unit, and the seedlings can be changed. It is possible to improve the workability of supplying seedlings to the loading platform.

In the present invention
It is preferable that the rear portions of the plurality of front-mounted portions to which the front portions of the supply portion are connected are arranged in an arc shape in a side view so as to follow the movement locus of the front portion of the supply portion.

As described above, when the supply unit is supported so as to swing up and down around the axis in the left-right direction of the front portion of the relay portion, the front portion of the supply unit draws an arc-shaped movement locus in a side view. ..
According to the present invention, each rear portion of the mounting portion of the reserve seedling stand is arranged in an arc shape in a side view so as to follow the movement locus of the front portion of the supply portion, so that the supply portion swings up and down. Even if the operation is performed, the positional relationship between the rear portion of each of the mounting portions of the spare seedling stand and the front portion of the supply portion is maintained in a constant state.
As a result, the seedlings in the mounting portion of the spare seedling stand can be stably supplied to the supply section, and the workability of supplying the seedlings to the seedling stand can be improved.

In the present invention
An upper seedling sensor provided on the upper part of the seedling stand to detect the presence or absence of seedlings,
It is preferable that a lower seedling sensor provided at the lower part of the seedling stand is provided to detect the presence or absence of seedlings.

According to the present invention, for example, when both the upper seedling sensor and the lower seedling sensor detect seedlings on the seedling stand, it can be determined that a sufficient amount of seedlings are placed on the seedling stand. If the upper seedling sensor stops detecting seedlings as the planting work progresses, it can be determined that the seedlings on the seedling stand have been consumed a little, so the driver relays the seedlings on the resting part of the spare seedling stand. Preparations such as supplying to the department may be made.

Next, as the planting work progresses, if the lower seedling sensor stops detecting seedlings, it can be determined that the seedlings on the seedling stand are consumed and the seedlings should be replenished on the seedling stand. The seedlings of the part may be supplied to the upper part of the seedling stand.

According to the present invention, it is possible to appropriately recognize the time when preparations such as supplying the seedlings of the resting part of the spare seedling stand to the relay part should be made before the seedlings need to be replenished to the seedling stand. Since the seedlings can be properly prepared in advance, the seedlings of the relay part can be reasonably supplied to the upper part of the seedling stand when the seedlings need to be replenished to the seedling stand.

In the present invention
When the front SL upper seedling sensor is in a state of not detecting the seedling, it is preferable that the control unit is provided for actuating the the mounting parts feeding apparatus and said feeding portion feed device.

As described above, when the upper seedling sensor and the lower seedling sensor are provided on the seedling stand, according to the present invention, when the upper seedling sensor stops detecting the seedlings, the mounting unit feeding device and the feeding unit feeding device It operates automatically and the seedlings of the mounting part of the spare seedling stand are supplied to the relay part.
As a result, it becomes possible to easily supply the seedlings in the mounting section of the spare seedling stand to the supply section and from the supply section to the relay section, and to supply the seedlings to the seedling stand. The sex can be improved.

In the present invention
A relay unit feeding device for supplying the seedlings of the relay unit to the upper part of the seedling stand is provided.
It is preferable that the control unit activates the relay unit feeding device when the lower seedling sensor does not detect seedlings.

As described above, when the upper seedling sensor and the lower seedling sensor are provided on the seedling stand, according to the present invention, when the lower seedling sensor stops detecting seedlings, the relay unit feeding device automatically operates. The seedlings of the relay part are supplied to the upper part of the seedling stand.
As a result, the seedlings of the relay unit can be easily supplied to the upper part of the seedling stand, and the workability of supplying the seedlings to the seedling stand can be improved.

It is a left side view of a passenger-type rice transplanter. It is a top view of a passenger-type rice transplanter. It is a schematic diagram which shows the linkage state of a control device and each part. It is a top view of the passenger type rice transplanter in the 1st alternative embodiment of the invention.

Unless otherwise specified, the front-rear direction and the left-right direction in the embodiment of the present invention are "forward" on the forward side and "rear" on the reverse side during work travel of the machine body 11. .. The direction corresponding to the right side is "right" and the direction corresponding to the left side is "left" with respect to the forward posture in the front-back direction.

(Overall configuration of passenger rice transplanter)
As shown in FIGS. 1 and 2, in the passenger-type rice transplanter, a link mechanism 3 is supported at the rear part of the body 11 provided with the right and left front wheels 1 and the right and left rear wheels 2, and extends to the rear side. A hydraulic cylinder 4 is provided to move the link mechanism 3 up and down, and a seedling planting device 5 is supported at the rear of the link mechanism 3.

A driver's seat 12 is provided at the center of the left and right sides of the airframe 11, a cover 13 is provided on the front side of the driver's seat 12, and a steering handle 14 for steering and operating the front wheel 1 is provided on the upper part of the cover 13.

(Configuration of seedling planting device)
As shown in FIGS. 1 and 2, the seedling planting device 5 is rotatable to the right and left portions of the planting transmission case 6 and the rear portion of the planting transmission case 6 arranged at predetermined intervals in the left-right direction. It is provided with a rotating case 7, a planting arm 8, a float 9, a seedling stand 10 and the like provided at both ends of the rotating case 7, and is configured in a 6-row type.

In the seedling planting device 5, the rotary case 7 is rotationally driven as the seedling stand 10 is reciprocally driven laterally to the left and right, and the planting arm 8 alternately takes out seedlings from the lower part of the seedling stand 10. Plant on the surface of the rice field.

The seedling resting table 10 is provided with six seedling resting surfaces 10a on which the seedlings are placed and a vertical wall-shaped partitioning portion 10b for partitioning the adjacent seedling resting surfaces 10a.
An upper seedling sensor 16 that detects the presence or absence of seedlings by contacting the seedlings is provided on the upper part of the seedling surface 10a of the seedling table 10. A lower seedling sensor 17 that detects the presence or absence of seedlings by contacting the seedlings is provided below the seedling surface 10a of the seedling table 10.

A belt-type vertical feed mechanism 15 is provided at the lower part of the seedling rest surface 10a of the seedling stand 10, and when the seedling stand 10 reaches the right end or the left end of the reciprocating lateral feed drive, the vertical feed mechanism 15 moves. The seedlings on the seedling stand 10 (seedling surface 10a) are sent downward by operating for a predetermined stroke.

As shown in FIG. 3, one electric motor 42 is configured to drive all the vertical feed mechanisms 15. Each of the vertical feed mechanisms 15 is provided with a minority clutch (not shown), and a part of the vertical feed mechanism 15 can be stopped by operating the minority clutch in the disengaged state.

(Composition of spare seedling stand)
As shown in FIGS. 1 and 2, spare seedling pedestals 18 are provided on the front portion of the right portion and the front portion of the left portion of the machine body 11.

Support frames 19 are arranged along the vertical direction on the front portion of the right portion and the front portion of the left portion of the airframe 11, and are connected to the airframe 11. The mounting portion 21 is connected to the right and left portions of the lower portion of the support frame 19, and the mounting portion 20 is connected to the right and left portions of the support frame 19 on the upper side of the mounting portion 21. ..

On the upper side of the mounting portion 20, the mounting portion 22 is connected to the right and left portions of the support frame 19, and on the upper side of the mounting portion 22, the mounting portion 22 is mounted on the right and left portions of the support frame 19. The parts 23 are connected.

As described above, in the spare seedling pedestal 18, a plurality of mounting portions 20 to 23 are provided along the vertical direction, and one or two mat-shaped mounting portions 20 to 23 are provided in each of the mounting portions 20 to 23. Seedlings can be placed.

As shown in FIGS. 1 and 3, the upper portion of the support frame 19 is formed diagonally rearward upward in a side view, and the mounting portions 20 to 23 are arranged with a slight displacement in the front-rear direction (mounting portions). The mounting portions 21 and 22 are arranged slightly behind the mounting portions 21 and 22, and the mounting portions 23 are arranged slightly rearward of the mounting portions 21 and 22). As a result, the rear portions 20a, 21a, 22a, 23a of the mounting portions 20, 21, 22, 23 are arranged so as to follow the arc-shaped locus in the side view.

As shown in FIGS. 1, 2 and 3, each of the mounting portions 20 to 23 is provided with a belt-type mounting portion feeding device 24 and an electric motor 25 for operating the mounting portion feeding device 24. A mounting part seedling sensor 26 for detecting the presence or absence of seedlings is provided.

(Structure of relay part)
As shown in FIGS. It is arranged between the spare seedling stand 18 and the seedling stand 10 in a plan view.

The relay unit 27 is supported by a support frame 28 provided at the rear portion of the machine body 11, and the relay unit 27 is arranged at the same height as the mounting unit 20 in a side view, and the mounting unit 20 to 20 in a plan view. It is located behind 23. Two mat-shaped seedlings can be placed side by side in the left-right direction on the relay unit 27.

The relay unit 27 is provided with a belt-type relay unit feeding device 29 and an electric motor 30 for operating the relay unit feeding device 29, and is provided with a relay unit seedling sensor 31 for detecting the presence or absence of seedlings.

Two sets of guide portions 32 are arranged side by side in the left-right direction of the rear portion of the relay portion 27, and are supported around the axis P2 in the left-right direction of the rear portion of the relay portion 27 so as to be swingable up and down. An electric motor 33 for swinging up and down is provided.

(Structure of supply section)
As shown in FIGS. 1, 2 and 3, the supply unit 34 is vertically swingably supported around the axis P1 in the left-right direction of the front portion of the relay unit 27.

As described in the above-mentioned (Structure of the spare seedling stand), in the spare seedling stand 18, the rear portions 20a to 23a of the mounting portions 20 to 23 are arranged so as to follow an arc-shaped locus in a side view. The saplings are arranged in an arc shape in a side view so as to follow the movement locus of the front portion 34a of the supply portion 34.

A posture changing device 35 for swinging the supply unit 34 up and down is provided. The posture changing device 35 is provided with an elevating gear 36 connected to the supply unit 34, a gear mechanism 37 having a pinion gear that meshes with the elevating gear 36, and an electric motor 38 for driving the gear mechanism 37.

The gear mechanism 37 is driven by the electric motor 38, and the supply unit 34 can be swung up and down via the elevating gear 36, and the supply unit 34 is changed to the postures A0, A1, A2, and A3. be able to.

In the posture A0, the front portion 34a of the supply portion 34 is close to the rear portion 20a of the mounting portion 20, and the supply portion 34 extends over the mounting portion 20 and the relay portion 27.
In the posture A1, the front portion 34a of the supply portion 34 is close to the rear portion 21a of the mounting portion 21, and the supply portion 34 extends over the mounting portion 21 and the relay portion 27.
In the posture A2, the front portion 34a of the supply portion 34 is close to the rear portion 22a of the mounting portion 22, and the supply portion 34 extends over the mounting portion 22 and the relay portion 27.
The posture A3 is a posture in which the front portion 34a of the supply portion 34 is close to the rear portion 23a of the mounting portion 23, and the supply portion 34 extends over the mounting portion 23 and the relay portion 27.

The supply unit 34 is provided with a belt-type supply unit feeding device 39 and an electric motor 40 for operating the supply unit feeding device 39, and is provided with a supply unit seedling sensor 41 for detecting the presence or absence of seedlings.

(First stage of replenishing seedlings to the seedling stand)
As shown in FIGS. 1, 2 and 3, a control device 43 (corresponding to a control unit) is provided on the machine body 11. The detection signals of the upper seedling sensor 16 and the lower seedling sensor 17, the detection signal of the placement part seedling sensor 26, the detection signal of the relay part seedling sensor 31, and the detection signal of the supply part seedling sensor 41 are input to the control device 43. The control device 43 operates the electric motors 25, 30, 33, 38, and 40 as described below.

When starting the planting work, the right or left supply unit 34 is operated to the attitude A3, and the driver gets on and off from the right side or the left side of the aircraft 11, and after getting on and off, the supply unit 34 is operated to the attitude A0. Keep it.

Sufficient seedlings are placed on each of the seedling surface 10a of the seedling stand 10 (a state in which both the upper seedling sensor 16 and the lower seedling sensor 17 detect seedlings), and seedlings are placed on all the placing portions 20 to 23. The seedlings are placed on the relay unit 27 and the supply unit 34, and the planting work is started.

As the planting work progresses, the seedlings on the two seedling surface 10a on the right (left) of the seedling stand 10 are slightly consumed, and the upper seedlings on the two seedling surface 10a on the right (left) of the seedling stand 10 are consumed. It is assumed that the sensor 16 is in a state of not detecting seedlings.

In such a state, the alarm buzzer (not shown) is activated and displayed on the control panel (not shown), so that the driver can place the seedlings on the rear side of the right and left relay parts 27. The seedling planting device 5 and the machine body 11 are stopped in a state where the two seedling surface 10a on the right and left of 10 are located (see FIG. 2).

When the machine 11 stops, the relay unit feeding device 29 automatically operates, and the seedlings of the relay unit 27 are sent to the rear side, and the two seedlings on the right (left) of the seedling stand 10 are sent from the guide unit 32. It is supplied to the upper part of the seedling surface 10a.

In this case, even if the seedling planting device 5 is moved up and down with respect to the machine body 11, the rear end portion of the guide portion 32 is close to the upper end portions of the two seedling resting surfaces 10a on the right (left) of the seedling resting table 10. As described above, the electric motor 33 is operated to swing the guide portion 32 up and down.

When the seedlings of the relay unit 27 are supplied to the upper part of the seedling stand 10 (seedling surface 10a), the supply unit feeding device 39 automatically operates, and the seedlings of the supply unit 34 are supplied to the relay unit 27. , The relay unit feeding device 29 automatically stops.

Next, the mounting unit feeding device 24 of the mounting unit 20 automatically operates, and the seedlings of the mounting unit 20 are supplied to the supply unit 34, and the mounting unit feeding device 24 of the mounting unit 20 and the supply are supplied. The unit feed device 39 automatically stops.

As the planting work progresses, the seedlings on the two seedling surface 10a on the right (left) of the seedling stand 10 are slightly consumed, and the upper seedlings on the two seedling surface 10a on the right (left) of the seedling stand 10 are consumed. When the sensor 16 does not detect the seedlings, the above-mentioned operation is repeated.

By repeating the above-mentioned operation, there are no seedlings in the mounting section 20, the supply section 34, and the relay section 27. With respect to the two seedling surface 10a in the center of the seedling stand 10, the driver manually removes the seedlings from the mounting portions 20 to 23, and the two seedling surface 10a in the center of the seedling table 10a. Supply seedlings to.

(Second stage of replenishing seedlings to the seedling stand)
As described in the above (first stage of replenishing the seedlings to the seedling stand), the seedlings are placed by the progress of the planting work in the state where there are no seedlings in the mounting section 20, the supply section 34 and the relay section 27. When the upper seedling sensor 16 on the two seedling surface 10a on the right (left) of the table 10 does not detect the seedling, the alarm buzzer (not shown) is activated and displayed on the control panel (not shown). Then, the following operations are performed.

As shown in FIGS. 1, 2 and 3, the mounting portions 21 to 23 on which the seedlings are placed are selected in the mounting portions 21 to 23 in a state where the planting work is continued. For example, when the mounting unit 22 is selected, the supply unit 34 is automatically operated to the posture A2 while the planting operation is continued.

Next, while the planting work was continued, the mounting unit feeding device 24, the supply unit feeding device 39, and the relay unit feeding device 29 of the mounting unit 22 were automatically operated to generate seedlings in the mounting unit 22. , Is supplied to the supply unit 34, and is supplied from the supply unit 34 to the relay unit 27. When the seedlings are supplied to the relay unit 27, the mounting unit feeding device 24, the supply unit feeding device 39, and the relay unit feeding device 29 of the mounting unit 22 are automatically stopped.

(Third stage of replenishing seedlings to the seedling stand)
As described in the above (second stage of supplying seedlings to the seedling stand), with the seedlings placed on the relay unit 27, as the planting work progresses, the right side (left) of the seedling stand 10 ), The seedlings on the two seedling surface 10a are further consumed, and the lower seedling sensor 17 on the two seedling surface 10a on the right (left) of the seedling table 10 does not detect the seedlings.

In such a state, as shown in FIGS. 1, 2 and 3, the alarm buzzer (not shown) is activated and displayed on the control panel (not shown), so that the driver can turn right and left. The seedling planting device 5 and the machine body 11 are stopped in a state where the two seedling resting surfaces 10a on the right and left of the seedling stand 10 are located on the rear side of the relay portion 27 (see FIG. 2).

When the machine 11 stops, the relay unit feeding device 29 automatically operates, and the seedlings of the relay unit 27 are sent to the rear side, and the two seedlings on the right (left) of the seedling stand 10 are sent from the guide unit 32. It is supplied to the upper part of the seedling surface 10a.

In this case, even if the seedlings of the relay unit 27 are supplied to the upper part of the seedling rest 10 (seedling surface 10a), the upper seedling sensors 16 of the two seedling rests 10a on the right (left) of the seedling stand 10 can be used. If the seedlings are not detected, the seedling planting device 5 and the machine 11 are stopped, and the above-mentioned (second stage of replenishing the seedlings to the seedling stand) and this section (seedlings to the seedling stand) are described. The third stage of replenishment) is repeated.

When the upper seedling sensors 16 on the two seedling surface 10a on the right (left) of the seedling stand 10 are in a state of detecting seedlings, an alarm buzzer (not shown) is activated and the control panel (not shown) is displayed. As it is displayed, the driver resumes the planting work.

(First alternative form of carrying out the invention)
The relay unit 27 may be configured as shown in FIG.
In the rear part of the machine body 11, a horizontally long relay part 27 having the same width as the width of the seedling stand 10 is provided so as to be located behind the driver's seat 12.

The relay unit 27 is not provided with the relay unit feeding device 29, the electric motor 30, and the relay unit seedling sensor 31. A large number of spherical rollers 44 are provided on the relay portion 27 so as to be freely rotatable around the axis in the front-rear direction, and six sets of guide portions 32 correspond to all the seedling resting surfaces 10a of the seedling resting table 10. It is supported by the relay unit 27.

The right and left supply portions 34 are swingably supported up and down around the axis P1 in the left-right direction of the front portion of the right portion and the left portion of the relay portion 27. The posture changing device 35 is not provided, and the driver manually swings the supply unit 34 up and down to move the front portion 34a of the supply unit 34 to the mounting portions 20 to 23 of the spare seedling stand 18. The supply unit 34 is set to the postures A0 to A3 by connecting to the rear portions 20a to 23a with a connecting tool (not shown).

The mounting unit feeding device 24 and the electric motor 25, the feeding unit feeding device 39 and the electric motor 40 are provided, but the mounting unit seedling sensor 26 and the feeding unit seedling sensor 41 are not provided.
On the floor 45, right and left actuating pedals 46 are provided on the lower right front portion and the left front portion of the driver's seat 12.

When the right operating pedal 46 is stepped on, the mounting unit feeding device 24 on the right spare seedling stand 18 and the supply unit feeding device 39 on the right supply unit 34 are activated, and the right operating pedal 46 is depressed to stop the operation. Then, the mounting unit feeding device 24 of the spare seedling stand 18 on the right and the feeding unit feeding device 39 of the supply unit 34 on the right stop.

When the left operating pedal 46 is stepped on, the mounting unit feeding device 24 on the left spare seedling stand 18 and the supply unit feeding device 39 on the left supply unit 34 are activated, and the left operating pedal 46 is depressed to stop the operation. Then, the mounting unit feeding device 24 of the left spare seedling stand 18 and the supply unit feeding device 39 of the left supply unit 34 are stopped.

With the above configuration, when the upper seedling sensor 16 does not detect seedlings, the driver depresses the right (left) operating pedal 46 while continuing the planting work, and the mounting unit feeding device 24 and The feeding unit feeding device 39 is operated to supply the seedlings of the mounting units 20 to 23 from the supply unit 34 to the right portion (left portion) of the relay unit 27.

While continuing the planting work, the driver manually pushes the seedlings supplied to the right part (left part) of the relay unit 27, and the upper seedling sensor 16 does not detect the seedlings on the seedling stand 10. The seedlings are moved to the position of the relay unit 27 corresponding to the surface 10a of the seedlings.

Next, when the lower seedling sensor 17 does not detect the seedlings, the driver stops the seedling planting device 5 and the machine body 11 and pushes the seedlings of the relay unit 27 by hand to push the seedlings of the relay unit 27 by hand to place the seedlings on the seedling stand 10. It is supplied to the upper part of 10a.

In the relay unit 27, the roller 44 rotates around the axis in the front-rear direction, but since it has a spherical shape, the seedlings of the relay unit 27 slide on the surface of the roller 44 and place the seedlings of the seedling stand 10. It is reasonably supplied to the upper part of the surface 10a.

(Second alternative form of carrying out the invention)
In the above-mentioned (first alternative mode of carrying out the invention), a feeding device (not shown) for feeding seedlings in the left-right direction and an electric motor (not shown) for rotating and driving the feeding device are provided in the relay unit 27. After the seedlings are supplied to the relay unit 27, the seedlings may be fed to the position of the relay unit 27 corresponding to the desired seedling surface 10a of the seedling stand 10 by the feeding device.

(Third alternative form of carrying out the invention)
The mounting unit feeding device 24 and the electric motor 25, the mounting unit seedling sensor 26, the relay unit feeding device 29 and the electric motor 30, the relay unit seedling sensor 31, the supply unit feeding device 39 and the electric motor 40, and the feeding unit seedling sensor 41. It may be configured not to be provided.

In this case, the mounting units 20 to 23, the supply unit 34, and the relay unit 27 may be provided with rollers (not shown) for supporting the seedlings so that the seedlings can easily move.
As a result, the supply of seedlings from the mounting units 20 to 23 to the supply unit 34, the supply of seedlings from the supply unit 34 to the relay unit 27, and the supply of seedlings from the relay unit 27 to the upper part of the seedling stand 10 are operated. The person pushes the seedlings by hand.

The present invention can be applied not only to a 6-row type riding type rice transplanter, but also to a 4-row type, an 8-row type, and a 10-row type riding type rice transplanter, and is a riding type equipped with a fertilizer application device and a chemical spraying device. It can also be applied to rice transplanters.

5 Seedling planting device 10 Seedling stand 11 Aircraft 16 Upper seedling sensor 17 Lower seedling sensor 18 Spare seedling stand 20-23 Mounting section 24 Mounting section Feeding device 27 Relay section 29 Relay section feeding device 34 Supply section 34a Supply section Front part 35 Attitude change device 39 Supply unit Feed device 43 Control device (control unit)
A0 to A3 posture P1 shaft core

Claims (7)

A seedling planting device provided with a seedling stand and supported at the rear part of the machine body, and a spare seedling stand provided with a plurality of mounting portions along the vertical direction and supported by the machine body are provided.
A relay unit arranged between the spare seedling stand and the seedling stand,
Among the plurality of pre-described placing parts of the preliminary seedling stand, the posture can be freely changed to the posture extending over the selected pre-described placing part and the relay part, and the seedlings of the selected pre-described placing part are placed in the pre-described placing part. a supply unit that can be supplied to the relay unit from,
The mounting unit feeding device that supplies the seedlings of the above-mentioned storage unit to the supply unit,
A supply unit feeding device for supplying seedlings of the supply unit to the relay unit is provided.
A passenger-type rice transplanter in which the selected seedlings of the pre-described place are supplied from the pre-described place to the relay part via the supply part, and are supplied from the relay part to the upper part of the seedling stand. The passenger-type rice transplanter according to claim 1, further comprising a relay unit feeding device for supplying seedlings of the relay unit to the upper portion of the seedling stand. The supply unit is supported so as to swing up and down around the axis in the left-right direction of the front portion of the relay unit.
The passenger-type rice transplanter according to claim 1 or 2 , further comprising a posture changing device for changing the posture of the supply unit by swinging the supply unit up and down. The third aspect of the present invention, wherein the rear portions of the plurality of front-mounted portions to which the front portions of the supply portion are connected are arranged in an arc shape in a side view so as to follow the movement locus of the front portion of the supply portion. Passenger rice transplanter. An upper seedling sensor provided on the upper part of the seedling stand to detect the presence or absence of seedlings,
The passenger-type rice transplanter according to any one of claims 1 to 4 , which is provided at the lower part of the seedling stand and is provided with a lower seedling sensor for detecting the presence or absence of seedlings. When the front SL upper seedling sensor is in a state of not detecting the seedling, riding rice transplanter according to claim 5 in which the control unit for actuating the the mounting parts feeding apparatus and said feeding portion feed device is provided. A relay unit feeding device for supplying the seedlings of the relay unit to the upper part of the seedling stand is provided.
The passenger-type rice transplanter according to claim 6 , wherein the control unit operates the relay unit feeding device when the lower seedling sensor does not detect seedlings.

Images