JPH0994016A - Seedling-carrying platform for rice transplanter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable the successive delivery of seedling trays to the lower stage in a simple structure, simple delivery thereof, the response to multiple row transplanting and further joining of seedlings from the rear of a machine body of a rice transplanter. SOLUTION: This seedling-carrying platform for a rice transplanter is obtained by trisecting guide plates 2 holding seeding trays in many stages in the vertical directions, fixing central plates 21, enabling reciprocating plates 22 and 23 on both sides to reciprocate in the transverse direction and arranging delivery mechanisms 3 for delivering the seedling trays downward by one stage when reciprocating the reciprocating plates 22 and 23 therein and further installing driving mechanisms for moving the respective reciprocating plates 22 and 23.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rice seedling placing table for rice transplanters, and more particularly to a seedling placing table that sequentially feeds seedling trays held in a multi-tiered manner to the lower stage.

[0002]

2. Description of the Related Art Conventionally, Japanese Patent Laid-Open No. 7-
As described in Japanese Patent No. 135814, a pair of sprockets vertically facing each other at predetermined intervals are provided at four positions for receiving four front, rear, left, and right positions of a seedling tray that is held in a multi-stage structure. It has been proposed that an elevating / conveying device including a conveying chain having a large number of tray receivers is provided, and that the elevating / conveying device is driven so that the seedling trays are sequentially extended to the lower stage. .

[0003]

However, according to this conventional seedling placing table, since four raising / lowering conveying devices having a conveying chain are required to hold one seedling tray, the structure is not suitable. There is a problem that it becomes complicated, and in the case of a multi-row planter planting machine, since the above-mentioned lifting and conveying device is arranged facing each other, it becomes a predetermined interval or more, so that it is possible to support multi-row planting. There is a problem that the seedling stand is not able to be spliced, or the front and rear of the seedling mounting table is blocked by each of the above-mentioned lifting and lowering transporting devices, so that seedling splicing cannot be performed from the rear of the rice planting machine.

According to the present invention, the seedling trays can be sequentially fed to the lower stage with a simple structure, and further, the feeding can be easily performed, and the multirow planting can be supported. Its main purpose is to provide a seedling table that can be spliced from the rear of the aircraft.

[0005]

In order to achieve the above-mentioned object, the present invention according to claim 1 provides a seedling mount which sequentially feeds seedling trays held in upper and lower stages to the lower stage as shown in FIG. The guide plate 2 for holding the seedling tray in the upper and lower stages is divided into three, the central plate 21 is fixed, and the plates 22 and 23 on both sides can be reciprocally moved in the lateral direction. , 23 are provided with a feeding mechanism 3 for feeding the seedling tray downward one step at a time of the reciprocating movement, and a driving mechanism 4 for moving the reciprocating plates 22, 23.

Further, according to the second aspect of the present invention, in order to prevent the seedling tray from moving together with the reciprocating plates 22 and 23 at the time of feeding the seedling tray, as shown in FIG. 3 between the upper start end portion 311 and the lower end portion 312 which hold the seedling tray by engaging two pairs of locking bodies on both sides of the three locking bodies provided on the seedling tray with a predetermined span displacement. It is composed of a substantially V-shaped bent guide strip portion 31 and a vertical guide strip portion 32 for moving the central locking body in the seedling tray in a directly downward direction.

Further, according to the third aspect of the invention, the reciprocating plates 22 and 23 are provided even when the number of holding stages of the seedling tray is increased.
In order to smoothly reciprocate, the drive mechanism 4 for operating the reciprocating plates 22 and 23 is provided above and below the guide plate 2 as shown in FIG. .

[0008]

According to the first aspect of the present invention, since the reciprocating plates 22 and 23 are reciprocally moved so that the seedling trays are sequentially delivered to the lower stage, compared with the conventional example using a large number of lifting and conveying devices. The structure can be simplified and the cost can be reduced. In addition, the guide plate 2 and the fixed central plate 21 and the reciprocating plate 22 that reciprocates on both sides of the central plate 21 to feed the seedling tray downward one step at a time. , 23, and has a three-part system in which the seedling tray is fed by the movement of the reciprocating plates 22, 23 on both sides of the stationary center plate 21, so the size of the moving member is smaller than that in the two-part system. The size can be reduced, the inertial force and sliding resistance of the reciprocating plates 22, 23 can be reduced, and the seedling tray can be stably fed to the lower stage without losing the holding posture. There, further, the reciprocating plate 22,
In 23, since the seedling tray feeding mechanism 3 is provided, it is possible to cope well with multi-row planting, and the front and rear can be opened,
You can also transfer seedlings from the rear of the rice transplanter.

Further, according to the second aspect of the invention, when the seedling tray is unrolled, the locking body 8 provided in the central portion of the seedling tray is provided.
2 is moved vertically downward along the vertical guide strip 32, so that the seedling tray T is reciprocally moved to the reciprocating plate 2.
It is possible to feed out with good stability, without being affected by the reciprocating movement of 2, 23.

According to the third aspect of the invention, the drive mechanism 4 is provided on the upper side and the lower side of the guide plate 2 so that the reciprocating plates 22 and 23 can reciprocate from the upper side and the lower side. Therefore, even when the number of holding steps of the seedling tray is increased, the reciprocating plates 22 and 23 can be smoothly reciprocated, and the seedling tray can be reliably and stably fed out.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION In the embodiment shown in FIG. 10, a top link B1 and a pair of left and right lower links B2 are provided at the rear portion of an aircraft body A composed of a tractor having a driver seat A1 and a steering handle A2. The riding-type 6-row Ueda planter in which the planting device section C is supported to be vertically movable via a parallel link mechanism B provided is shown. As is known, the planting device section C includes a planting case D in which a transmission mechanism that interlocks with the PTO shaft of the machine body A via a universal joint is installed, and a PTO laterally extending from the planting case D in the left-right direction. Six transmission cases E supported by a shaft at a planting strip interval, and these transmission cases E
A planting section F having a plurality of planting claws which are supported by the transmission mechanism and the PTO horizontal axis and are interlocked with each other, and a seedling take-out plate G arranged in the vicinity of the planting section F, The seedling mounting table is supported so as to be reciprocally movable in any direction, and a reciprocating mechanism (not shown) that reciprocates the seedling mounting table to the left and right.

In the seedling table of the embodiment shown in FIGS. 10 and 1, the front and rear are opened, and the rail portions 11 and 12 having a concave cross-section that extend in the front-rear direction and extend in the front-rear direction at the bottom and the top are provided in the left-right direction. Box-shaped frames 1 arranged side by side, a central plate 21 provided in the frame 1, reciprocating plates 22 and 23 that reciprocate on both sides of the central plate 21, and seedlings when the reciprocating plates 22 and 23 reciprocate. A feeding mechanism 3 for feeding the tray T downward one by one, and a reciprocating plate 2
A driving mechanism 4 for reciprocating the Nos. 2 and 23 in the front-rear direction along the rail sections 11 and 12, and the lowermost seedling mat M is laterally conveyed from the rear opening of the frame 1 toward the planting section F side. And a seedling tray discharging means 6 for retracting an empty seedling tray T on which the seedling mat M at the bottom is placed from the transport path of the conveying device 5. In the seedling placing table of the embodiment, as shown in FIG. 3, the central plate 21, the reciprocating plates 22 and 23, the drive mechanism 4, and the transfer device 5 are displaced by a predetermined span to the left and right corresponding to 6-row planting. The seedling trays T are held in three stages on the reciprocating plates 22 and 23 corresponding to each planting row as shown in FIG. 1, but other than single-row planting or six-row planting. It may be adapted to multi-row planting, or the seedling tray T may be held in about 2 to 10 stages.

As shown in FIGS. 7 and 8, the seedling tray T is made of a rectangular plate having a seedling mat mounting surface 8a on its upper surface, and its lower surface has front and rear portions and a central portion. , The locking shafts 81, 81, 81 projecting outward from both left and right sides are provided with a predetermined span displacement to enhance the rigidity of the seedling tray T in the left-right direction, and the protruding parts at both ends of these locking shafts 81, 81, 81 81a ..., The guide strip 31 in the feeding mechanism 3
By holding the locking body 82 made of a ball bearing that engages with the seedling tray T so that the seedling tray T can be smoothly fed out, the front side portion is protruded forward by a larger amount than the locking body 82. The tip thereof is sharpened so that the seedling mat M of the nursery box can be easily placed on the mat placing surface 8a.
The central locking shaft 81 is provided only on both the left and right sides.

The central plate 21 and the reciprocating plate 2
Reference numerals 2 and 23 denote one guide plate 2 which is divided into three parts in the front-rear direction, and a center plate 21 thereof is fixed to the bottom part and the top part at the center part in the front-rear direction in the frame 1 so that the frame 1
Of the reciprocating plates 22 and 23 on both sides can be reciprocated back and forth along the rail portions 11 and 12. In addition, the central plate 21 and the reciprocating plate 2
2 and 23 are arranged on both the left and right sides of the seedling tray T with a gap therebetween, and the left and right guide plates 22 and 22 and 23 and 23 are connected by connecting bodies 24 and 25. . A shoe is provided between the left and right reciprocating plates 22 and 22, 23 and 23 of the rail portions 11 and 12 so that the reciprocating plates 22 and 22, 23 and 23 can reciprocate smoothly.

The connecting members 24 and 25 connect the front end portions of the front left and right reciprocating plates 22 and 22 and the rear end portions of the rear left and right reciprocating plates 23 and 23 vertically with a predetermined interval. It consists of a rod-shaped member.

Further, the feeding mechanism 3 is provided on the reciprocating plates 22 and 23 on both sides, and of the three sets of locking bodies 82 provided on the seedling tray T with a predetermined span displacement, two sets of locking bodies on both sides are provided. Provided on the central plate 21 are a substantially V-shaped bent guide strip 31 that is bent between an upper start end 311 and a lower end end 312 that engage with 82, 82 to horizontally hold the seedling tray T. , The central locking body 82 in the seedling tray T
And a vertical guide strip portion 32 for moving the vertical direction.
Then, the central plate 21 and the reciprocating plates 22, 2
3, a horizontal guide strip 33 that extends horizontally across the upper start end 311 of the bent guide strip 31 and receives the locking body 82 of the seedling tray T and inserts the seedling tray T horizontally. The lateral guide strip 33 is provided at its rear end and is open rearward. It should be noted that the connecting body 25 is installed between the lower portions of the horizontal guide strips 33 in the tray insertion opening so that the seedling tray T can be supported when the seedling tray T on which the seedling mat M is placed is inserted into the horizontal guide strips 33. I have to. By doing so, the front end of the seedling tray T can be hooked on the connecting body 25 and inserted into the tray insertion inlet of the lateral guide strip 33, and the front locking body 82 has passed over the connecting body 25. Sometimes, since the front side can be supported with respect to the front side locking body 82, the front side locking body 82 can be smoothly inserted along the upper strip surface of the lateral guide strip 33, and the seedling mat can be easily replenished. .

The lateral guide strip portion 33 has an upper strip surface and a lower strip surface which are opposed to each other in the vertical direction, and each locking member 82 of the seedling tray T fed to the lowermost stage is provided on the lower strip surface of the lowermost stage. There is a pool groove 26 ...

On the other hand, the drive mechanism 4 shown in FIG.
Is a pair of brackets 4 on the upper surface of the top of the frame 1.
An operating arm 41 that swingably supports an intermediate portion in the front and rear direction via 0 and 40, front and rear transmission rods 42 and 42 connected to both ends of the operating arm 41, and a front portion and a rear portion of the frame 1. First link arms 44, 44 fixed to central portions in the longitudinal direction of the horizontal shafts 43, 43 rotatably installed, and a pair of second link arms 45, 45 fixed to both ends of the horizontal shafts 43, 43. A third link connecting the second link arms 45, 45 to the front end portions of the front left and right reciprocating plates 22, 22 and the rear end portions of the rear left and right reciprocating plates 23, 23 via pivot pins. Arms 46, 46 are provided, and the tip portions of the transmission rods 42, 42 and the first link arms 44,
The tip end of 44 is connected by a pivot pin, and a manual lever 47 is integrally connected to one end of the operating arm 41 (see FIG. 1).
0) By reciprocating the manual lever 47 in the front-rear direction, the front left and right reciprocating plates 22 and 22 and the rear left and right reciprocating plates 23 and 23 are moved toward and away from each other. Incidentally, the third link arms 46, 4
6 is connected to the upper and lower central portions of the reciprocating plates 22 and 23. Further, in the embodiment shown in FIGS. 1 and 3, an actuator 48 that communicates with a hydraulic pressure source provided in the machine body A via a switching valve is provided on the top surface of the top portion of the frame 1, and the piston in the actuator 48 is provided. Rod 48
The distal end portion of a is connected to the end portion of the actuating arm 41, and the actuating arm 41 is swung in the same manner as in the manual case by switching the switching valve, so that the front left and right reciprocating plates 22, 22 and rear left and right reciprocating plates 23, 2
3 and 4 are made to reciprocate back and forth. When the manual lever 47 is operated, the oil in the hydraulic circuit of the actuator 48 is relieved in an oil tank or the like to deactivate the actuator 48.

The carrying device 5 shown in FIG. 1 is arranged at a position connecting the belt-type first carrier 51 arranged below the frame 1 and the rear of the frame 1 with the planting section F, and 1
The planting section F by inheriting the seedling mat conveyed by the carrier 51
And a belt-type second transport body 52 for transporting to the.

The first and second carriers 51 and 52 are
Transport belts 51a, 52a and a pair of belt wheels 51b,
52b is displaced left and right for a predetermined span as shown in FIG. 1, while the first tray 52 is moved to the seedling tray T as shown in FIGS.
When the seedling tray T is unrolled to the lowermost stage by providing the seedling tray discharging means 6 composed of an elongated through hole that receives the transport belt 51a of the transport body 51 and one radial side portion of the belt wheel 51b. The mat M is placed on the conveyor belt 51a, the seedling tray T falls by its own weight, and the conveyor belt 51a of the first conveyor 51 enters the seedling tray discharging means 6, and the seedling tray T conveys the first conveyor 51. It retreats downward from the route and is supported by the pool groove 26. .. of the retracted seedling tray T are held in the pool grooves 26 of the lateral guide strips 33 .. The tray storage unit 1 between the upper surface of the conveyor belt 51a and the belt shaft 51c.
It is stacked and stored in 0. The first carrier 5
A detection switch (not shown) for detecting the rear end position of the seedling mat M in the transport direction is provided between the first and second carriers 52, so that the seedling mat M is completely transported to the second carrier 52. The drive mechanism 4 can be operated before the operation. That is, a detection signal output from the detection switch operates an indicator such as a lamp and a buzzer, and an operator operates the manual lever 47, or operates the actuator 48 by switching the switching valve according to the detection signal. It is done like this.

The belt belt 5 on one side of the first carrier 51
1b is linked to an initial feed motor (not shown) via a clutch, and the belt wheel 51b and the second
In cooperation with the one-side belt wheel 52b of the carrier 52, at the start of planting, the seedling mat M in the lowermost stage is carried to the seedling take-out plate G position arranged in the vicinity of the planting section F. On the other hand, when the seedling table that reciprocates left and right by the reciprocating mechanism moves to the end position in the reciprocating direction, the first and second carriers 5
A vertical feed mechanism 7 that drives 1, 52 in synchronization is provided. In addition, the vertical feed mechanism 7 is used to
When 52 is driven synchronously, the clutch is disengaged, and the power transmission from the initial feed motor to the first transport body 51 is cut off.

As shown in FIG. 1, the vertical feed mechanism 7 has vertical feed cams 71 projecting radially outward on both left and right ends,
A horizontally-long vertical feed cam shaft (not shown) that is integrally provided with the one drive-side belt wheel 51b of the first carrier 51 and the vertical feed when the seedling stand moves to the reciprocating end position in the left-right direction. A control shaft 73 that has a pair of tapping rollers 72 that engages with one of the cams 71 and that rotates together with the transmission mechanism inside the planted case D to angularly rotate the vertical feeding cam shaft, and the second transport body 52.
Of the drive-side belt wheel 52b in FIG.
4 and an interlocking rod 75 interlockingly connecting the vertical feed cam 71 and the swing arm 74, and the beating roller 72 of the control shaft 73 that constantly rotates engages with the vertical feed cam 71, and the vertical feed cam 71.
When is tapped, the vertical feed cam shaft is angularly rotated, and the belt wheel 52 of the second carrier 52 is moved through the interlocking rod 75 and the swing arm 74.
b is synchronously angularly rotated, and the first and second carriers 51, 52
The seedling mat M placed on the conveyor belts 51a and 52a is vertically fed to the planting portion F by one pitch.

Further, at the rear end portion of the frame 1 which is the insertion start end side of the seedling tray T with respect to the rear side reciprocating plate 23, a hooking body for hooking the seedling tray T to be inserted into each lateral guide strip 33. When the seedling trays 13 on which the seedling mats M are mounted are inserted into the entrances of the lateral guide strips 33, the front end side of the seedling trays T is hooked with the hooks 1 before the insertion.
3 so that the seedling tray T can be inserted while being moved forward in this state. In this case, the seedling tray T can be easily inserted into the entrance of the lateral guide strip portion 33.

In FIG. 1, reference numeral 14 denotes a connecting stay arranged on the bottom surface of the frame 1 in the front and rear over the entire length in the left and right directions.

In the above construction, as shown in FIG. 9, the seedling tray T, on which the seedling mat M of the nursery box is picked up and placed on the seedling placing surface 8a, moves from the rear of the frame 1 to the reciprocating plate 2
2, 23 and the lateral guide strips 33, ... of the respective stages of the central plate 21, and the respective locking bodies 82 provided at the front and rear sides thereof are bent as shown in FIG. The upper start end portion 311 ... Is held. The seedling tray T inserted into the lowermost horizontal guide strip 33 falls by its own weight as shown in FIG. 1, and the conveyor belt 51a of the first conveyor 51 enters the discharging means 6 formed of the through hole. , Is retracted downward from the transport path of the first transport body 51, is supported by the pool groove 26, ... At the same time, the seedling mat M is placed on the transport belt 51a.

In this state of FIG. 1, the first and second carriers 51 and 52 are synchronously driven by the initial feed motor, and the seedling mat M at the lowermost stage is arranged in the vicinity of the planting section F. The seedling take-out plate G is conveyed to the position. Then, when the seedling placing table has moved to the left and right reciprocating end positions, that is, the seedling taking-out plate G
When the horizontal row of seedlings of the seedling mat M that have been transported to the empty space are emptied, the first and second transporters 51, 52 are moved by the vertical feed mechanism 7.
Are driven in synchronism with each other, and the seedling mat M is vertically fed by one horizontal row of seedlings.

Further, when the seedling mat M placed on the first carrier 51 of FIG. 1 is transported to the side of the second carrier 52 and separated from the first carrier 51, based on the detection signal output from the detection switch. The manual lever 47 or the actuator 4
When the actuating arm 41 of FIG. 1 is moved in the clockwise direction by 8, the first and second link arms 44, 44 and 45, 45 swing about the horizontal shafts 43, 43, and the reciprocating plates 22 and 22 are moved. And 23 and 23 are spaced apart from each other in the front-rear direction, as shown in FIG. At this time, the bending guide strip 31
-The locking body 82 engaged with the upper starting end portion 311 of-
Is displaced to the intermediate bent portion along the bent guide strip 31 that is bent in a substantially V shape.

Next, when the actuating arm 41 is returned to the counterclockwise direction by the manual lever 47 or the actuator 48, the reciprocating plates 22 and 22 and 23 and 23 synchronously come close to each other as shown in FIG. At this time, the locking body 82 that has been displaced to the middle bent portion of the bending guide strip 31 ...
, Through the lower end portion 312 ···, is displaced to the upper start end portion 311 ··· in the lower stage as shown in FIG. 6, and is held horizontally, and the seedling mat M on the lowermost stage is placed. Tray T
Is the pool groove 26 by its own weight as in the case described in FIG.
···································· Through hole, and the conveying belt 51 a of the first conveying body 51 enters the first conveying body 51
It is retracted downward from the transport path of (1) and is stored on the first seedling tray T so that the plate portions overlap with each other by being shifted back and forth. At this time, as shown in FIG. 6, the locking bodies 82 of the upper and lower seedling trays T shift back and forth, and the plate portions overlap each other.
A large number of seedling trays can be stored even if the belt wheel 51b of is relatively small.

Further, the feeding mechanism 3 and the drive mechanism 5 are
Since the feeding mechanisms are arranged so as to be able to individually operate the feeding mechanisms 3, it is possible to favorably deal with the variation in the decrease of the seedling mats M fed by the feeding mechanisms 3.

Further, by providing the link type drive mechanism 5, even in the case of coping with multi-row planting, the structure can be simplified and the cost can be reduced.

When the locking bodies 82 of the seedling tray T are formed of bearings as in the embodiment, the groove widths of the bending guide strips 31, the vertical guide strips 32 and the horizontal guide strips 33 can be increased. Therefore, the mud dropped from the seedling mat or the like can be hardly accumulated on these guide strips 31 to 33, the weight can be reduced accordingly, and the seedling tray can be inserted and drawn out smoothly, and the locking body 82 ... By displacing the seedlings on the side opposite to the seedling placing surface 8a through the brackets as shown in FIG. 8, even if the seedling mat is laterally displaced, it is possible to prevent the locking bodies 82 ... from rolling.

In the above embodiment, the one provided with the link type drive mechanism 4 has been described. However, in addition to this, as shown in FIG. 11, for example, the pinion gear 49a for driving the vertical axis extending from the frame 1 as a center. And the pinion gear 49a protruding from the front and rear reciprocating plates 22 and 23.
The racks 49b and 49b meshing with each other may be provided, and the reciprocating plates 22 and 23 may reciprocate via the racks 49b and 49b by driving the pinion gear 49a. Further, the drive mechanism 4 may be provided only on the upper side of the guide plate 2 as shown in FIG. 1, or may be provided on the upper side and the lower side of the guide plate 2. In this case, it is preferable to employ a drive mechanism composed of the pinion gear 49a and the racks 49b, 49b in that the outward projection can be reduced as compared with the case of the link type.

Further, in the above-mentioned embodiment, the seedling table provided in the planting device section C supported by the parallel link mechanism B at the rear of the machine body A so as to be movable up and down has been described.
As shown in FIG. 12, the seedling placing table of the present invention may be provided with a support portion A3 at the rear portion of the driver's seat A1 in the machine body A and mounted on this support portion A3. May be applied to the machine. When mounted on the support part A3, as shown in FIG. 12, the seedling mat M transported from the second transporter 52 is configured to be inherited to the upper end part of the seedling stand K in the planting device part C. Of. In addition, in the case of the embodiment of FIG.
It has a step structure and is suitable for holding 10 seedling mats vertically.

[Brief description of drawings]

FIG. 1 is a vertical sectional side view of a seedling stand according to the present invention.

FIG. 2 is a partially omitted perspective view of only the guide plate and the transport device section.

FIG. 3 is a plan view of FIG.

FIG. 4 is an enlarged view in which a part of FIG. 3 is omitted.

FIG. 5 is an operation state diagram from FIG. 1;

FIG. 6 is an operation state diagram from FIG. 5;

FIG. 7 is a plan view of the seedling tray.

FIG. 8 is a side view of the seedling tray.

FIG. 9 is an explanatory view of a state in which a seedling mat is placed on the seedling tray.

FIG. 10 is a side view of a rice transplanter equipped with the seedling mounting table.

FIG. 11 is a vertical cross-sectional side view of a seedling table provided with a drive mechanism different from the drive mechanism of FIG.

FIG. 12 is a side view showing another embodiment of a rice transplanter equipped with the seedling placing table.

[Explanation of symbols]

 2 ... Guide plate 21 ... Center plate 22, 23 ... Reciprocating plate 3 ... Feeding mechanism 31 ... Bending guide strip 32 ... Vertical guide strip 4 ... Drive mechanism

Claims (3)

[Claims] 1. A seedling placing table for feeding seedling trays which are held in upper and lower stages in order to a lower stage, wherein a guide plate (2) which holds the seedling trays in upper and lower stages is divided into three, and a central plate (21) thereof is provided. Fix and plate on both sides (22,23)
To reciprocate in the lateral direction, and these reciprocating plates (2
2, 23) is provided with a feeding mechanism (3) for feeding the seedling tray downward one step at a time of the reciprocating movement, and a driving mechanism (4) for moving each reciprocating plate (22, 23).
Seedling stand of rice transplanter characterized by having 2. The feeding mechanism (3) has an upper start end portion (2) which holds the seedling tray by engaging with two sets of locking bodies on both sides of the three sets of locking bodies provided on the seedling tray with a predetermined span displacement. 31
1) and the lower end portion (312) are bent in a substantially V-shaped bent guide strip (31), and a vertical guide strip (32) for moving the central locking body in the seedling tray in a downward direction. The seedling placing table of the rice transplanter according to claim 1, which is composed of 3. The rice transplanter seedling according to claim 1, wherein a drive mechanism (4) for operating the reciprocating plates (22, 23) is provided on the upper side and the lower side of the guide plate (2). Platform.