JP2001157505A - Transplanter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a suitable and efficient constitution for loading a transplanter with a nursery box having flexibility, used for a rice transplanter constructed so as to load a planting part with pot seedlings together with the nursery boxes, push out the seedlings from the nursery boxed as a suitable position in a prescribed conveying route and feed the seedlings to a seedling uprooting part of an implanting rod while conveying the nursery boxes along the conveying route and made flexible at least in the conveying direction because the conveying route of the nursery boxes has a shape including a curved part for restriction of a space in the planting part. SOLUTION: This transplanter is equipped with reserve seedling frames capable of engaging with the upper part of the nursery boxes and hanging and holding the nursery boxes side by side in the left and right direction of the machine in the transplanter for loading the planting planting part with the seedlings raised in the nursery boxes having flexibility together with the nursery boxes.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a transplanter in which seedlings grown in a flexible seedling box are loaded into a planting section together with a seedling box. The present invention relates to a configuration for mounting a spare seedling box.

[0002]

2. Description of the Related Art A pot seedling is loaded into a planting section together with a seedling box, and while the seedling box is transported along a predetermined transport route, the seedlings are pushed out of the seedling box at an appropriate position on the transport route, and the seedling is planted. There is a rice transplanter that is configured to supply a seedling to a bamboo rod. Because of the space of the planting area, the transport path of the seedling box has a curved shape (for example, U-shape), so that the seedling box used in this type of rice transplanter can be bent at least in the transport direction. Has become.

[0003] When mounting a spare seedling to be replenished in the transplanting machine when the seedling in the planting portion is exhausted, in the case of a rigid seedling box, the seedling box is placed in a state of being laid on a shelf-shaped spare seedling frame. . However, in the case of the seedling box having flexibility as described above, it is very difficult to handle the seedling box in a horizontal state because holding the one end of the seedling box causes the other end to hang down. It is inappropriate to adopt.

[0004]

Therefore, development of a method of mounting a spare seedling suitable for mounting a seedling housed in a flexible seedling box as a spare seedling on a transplanter has been awaited.

[0005]

According to the first aspect of the present invention,
In a transplanter that loads seedlings grown in a flexible seedling box into a planting section together with a seedling box, spare seedling frames that can be suspended and held by locking the upper part of the seedling box are provided on the left and right sides of the machine body. The transplanting machine according to claim 1, wherein the transplanting machine is provided in parallel, and the invention according to claim 2 is a spare seedling frame for suspending and holding a plurality of seedling boxes in the lateral direction of the machine body. It is what it was.

[0006]

According to the first aspect of the present invention, there is provided a transplanter for loading seedlings grown in a flexible seedling box together with a seedling box into a planting portion, wherein the upper portion of the seedling box is locked and suspended. Since the transplanter is provided with the spare seedling frames that can be held in parallel on the left and right sides of the machine body, a flexible seedling box can be efficiently mounted. Further, since the spare seedling frames are provided in parallel on the left and right sides of the machine, the balance between the right and left of the machine is improved, so that a good seedling transplanting operation can be performed.

[0007] The invention according to claim 2 is the transplanting machine according to claim 1, which is a spare seedling frame for suspending and holding a plurality of seedling boxes in the lateral direction of the machine body.
In addition to the functions and effects of the described invention, many spare seedling boxes can be mounted even in a narrow place in the longitudinal direction of the machine.

[0008]

Embodiment 1 FIGS. 1 to 26 show one embodiment of the present invention. The transplanter 1-1 is provided with a six-row planting part 3 and a fertilizing device 4 mounted on a traveling part 2 which is a four-wheeled traveling vehicle, and is configured as a riding type fertilizing rice transplanter as a whole.
The planting section 3 is mounted on a parallel link-type planting section mounting device 5 provided at the rear of the traveling section 2 which is a traveling vehicle body, and is capable of moving up and down with respect to the traveling section 2. The planting section mounting device 5 is moved up and down by a hydraulic cylinder 6.

The planting section 3 is of a type in which seedlings are loaded together with the seedling boxes. In a transmission case 10 also serving as a planting section frame, planting apparatuses 12 for the number of planting strips, and a seedling picking position of the planting apparatus. And seedling supply devices for supplying seedlings one by one. Each device for supplying seedlings is a seedling box feeder 14,
A seedling box automatic feeder 15 provided on the seedling box feeder, a seedling pushing device 16 for pushing seedlings from a seedling box at a seedling pushing position of the seedling box feeder 14, a seedling for carrying seedlings pushed down by the seedling pushing device downward. A seedling transfer device 17; a seedling removing device 18 for assisting the seedling delivery device; a seedling transfer belt 19 for transferring seedlings received from the seedling delivery device 17 to a seedling collecting position of the planting device 12.

The seedling box to be used has the structure shown in FIGS. 53 to 55, and is integrally formed of a synthetic resin material having flexibility. That is, in the seedling box 300, seedling pots 301,... Opening at the top are arranged vertically and horizontally, and a seedling pushing hole 303 having three radial slits 302 is formed at the bottom of each pot. This seedling extrusion hole 30
3 also serves as a drain. Assuming that the longitudinal direction is vertical and the direction perpendicular to the horizontal direction is horizontal, the pot interval is constant pitch p in the vertical direction, and a boundary portion 306 where the interval between pots is widened in the center in the horizontal direction is provided, On both sides, the same number (for example, seven) of pots are arranged at equal intervals per horizontal row. Therefore, the seedling raising pot is divided into two groups on the left and right sides with the band-shaped boundary portion 306 interposed therebetween. The left and right edges of the seedling box are ears for guidance 307
The claw holes 308 are formed in the ear portions at the same pitch as the pitch p in the vertical direction of the pot and are rectangular in plan view.
The tip 309 of the ear 307 is bent downward substantially at a right angle. The seedling box 300 is formed thin as a whole, and has flexibility in the front-back and left-right directions. Pot 301, ...
The seedlings are sown with floor soil therein, and grown until they reach an adult seedling 310 of a certain size.

Hereinafter, each part of the planting section 3 will be described.
The seedling box feeder 14 includes a seedling box mounting part 21, a connection part 22, a seedling box transport part 23, and an empty box storage part 24. Seedling box mounting part 2
Reference numeral 1 denotes a two-tiered structure with upper and lower seedling box mounting portions 21 (A, B).
Are inclined so that the front side is higher. The connection part 22 connects the rear ends of the upper and lower seedling box mounting parts 21 (A, B) and the start end of the seedling box transporting part 23. Seedling box transport section 2
Reference numeral 3 denotes a substantially U-shape in a side view, and the rear end of the U-shape is the starting end of the seedling box transfer, and the front end of the U-shape is the end of the seedling box transfer. The empty box storage section 24 is provided in front of the terminal end of the seedling box transport section 23 and has a space in which a plurality of empty seedling boxes can be stacked and held.

The seedling box flow during the planting operation will be described. The seedling box 300 placed on the seedling box placing section 21 is supplied to the seedling box transport section 23 through the connection section 22, and is supplied. The seedling box 300 is intermittently conveyed by a pitch p from the start end to the end by the seedling box automatic feeder 15.
Since the seedling box 300 has flexibility, it can be transported along a curved transport path. During the transport, the pot seedlings in the seedling box are pushed backward by the seedling pushing device 16 at a seedling pushing position 27 provided at the rear lower portion of the seedling box transporting section 23. The empty seedling box discharged from the terminal end of the seedling box transport section 23 is collected in the empty box storage section 24.

A shutter 34 is provided at the front end of the connecting portion 22.
(A, B) are provided, and by appropriately opening and closing the shutter, the seedling box of the upper seedling box placing part 21 (A) and the seedling box of the lower seedling box placing part 21 (B) are alternately arranged. It is supplied to the seedling box transport section 23.

FIG. 8 is a view taken in the direction of arrow A in FIG. The supply side portion of the seedling box transporting section 23 holds the seedling box 30 in a state where the ear portion 307 of the seedling box is sandwiched between the edge 44 a of the bottom plate 44 and the holding metal 45.
0 is guided. A vertically long rectangular opening 45a is formed in the lower part of the presser fitting 45.

FIG. 9 is a sectional view taken along the line BB in FIG.
The return side portion of the seedling box transport section 23 is the ear portion 307, 3 of the seedling box.
, A receiving pipe 48 for receiving the front side of the boundary of the seedling box, and a guide pipe 49 fitted on the back side of the boundary of the seedling box.
7 and 47 sandwich the left and right sides of the seedling box, and the receiving pipe 48 and the guide pipe 49 sandwich the front and rear sides of the seedling box. The interval between the rails 47, 47 and the interval between the receiving pipe 48 and the guide pipe 49 are just wide enough to allow one seedling box to pass through. With this configuration, the seedling boxes do not overlap each other. .

The automatic seedling box feeder 15 is shown in FIGS.
1 is shown. Reference numeral 50 denotes an automatic feed rod, which has an automatic feed claw 51 inserted into the opening 45a of the presser fitting 45 and engaged with the lower wall surface of the claw hole 308 of the seedling box. The automatic feed rod 50 is attached to a roller shaft 54 provided at the tip end of the swing arm 53 in a state of being urged to the seedling box path side via a torque spring 55. 5
It moves up and down as it swings around 7. When the automatic feed lever 50 is at the lower limit position, the automatic feed claw 51 is set to be located at the seedling pushing position 27. The swing arm 53 is driven via a seedling feed rod 58. Numeral 60 denotes a control rod, which is inserted into the opening 45a and engages with the upper wall surface of the claw hole 308 of the seedling box.
Having. The stop rod 60 is rotatably supported by a support shaft 62, and a lower end portion of the stop rod 60 slidably abuts the roller shaft 54. Therefore, when the swing arm 53 moves upward, the lower part of the control rod 60 is pushed rightward so that the control claw 61 is disengaged from the claw hole 308. Furthermore, the control rod 6
When 0 is pressed for a certain amount or more, this is engaged with the engaging piece 50a of the automatic feed rod 50, and the automatic feed claw 51 is also disengaged from the claw hole 308. Reference numeral 65 denotes a leaf spring brake, which is a hook portion 65a.
Engages with the claw hole 308 to prevent the seedling box from falling under its own weight. Next, FIGS.
4 will be described.

FIG. 12 shows a state in which the swing arm 53 swings downward, and the automatic feed claw 51 of the automatic feed rod 50 and the stop claw 61 of the stop rod 60 are fitted into the opening 45a. The upper wall surface of the claw hole 308 of the seedling box (the lower end surface of the seedling box in the initial state) is received by 61, and the seedling box 300 is held stationary.

FIG. 13 shows a state in which the swing arm 53 swings upward. When the automatic feed rod 50 moves upward, the automatic feed claw 51 slides along the upper wall surface of the claw hole 308, and the automatic feed claw is moved. 51 is pushed out from the claw hole 308,
The lower portion of the control rod 60 is rotated rearward by being pushed by the roller shaft 54, and the control claw 61 is also disengaged from the claw hole 308. By the action of the leaf spring brake 65, the seedling box 300 is held at the same position.

When the swing arm 53 rotates downward from the state shown in FIG. 13, the automatic feed claws 51 of the automatic feed rod 50 are fitted into the claw holes 308 as shown in FIG. At this point, the control claws 61 of the control rod 60 are still out of the claw holes 308. In this state, when the swing arm 53 further rotates, the automatic feeding claw 51 pushes down the lower wall surface of the claw hole 308 to convey the seedling box 300 by one pitch p. The upper seedling box falls under its own weight. When the swing arm 53 rotates to the bottom dead center, the regulation by the roller shaft 54 is released, the stopping claw 61 is fitted into the claw hole 308, and the state returns to the state shown in FIG.

The seedling box feeder 14 is provided with the automatic seedling box feeder 1.
5 is provided with a manual seedling box feeder 69. FIG.
And 70 in FIG. 11 is a manual feed rod having a manual feed pawl 71 similar to the automatic feed pawl 51 and a manual lever 7.
3 is attached to a roller shaft 74 provided at an intermediate portion of the seedling box 3 via a torque spring 75 while being urged toward the seedling box transport path. Normally, the manual feed rod 70 is at the home position shown in FIG. 10, and the manual feed claw 71 is fitted into the claw hole 308 of the seedling box in the cycle in which the seedling box moves by one pitch p. 71 is swung so as to be pushed out from the claw hole 308. When the manual lever 73 is reciprocated within the range shown in FIG. 15, when the manual lever 73 rotates downward, the manual feed claw 71 pushes down the lower wall surface of the claw hole 308 to feed the seedling box 300 by one pitch p. Transport in the direction. When the manual lever 73 is moved slightly above the home position, the roller shaft 74 presses the upper portion 60a of the control rod 60, whereby the control rod 60 rotates counterclockwise, and the control claw 61 comes off the claw hole 308. Therefore, the transfer of the seedling boxes by the manual seedling box feeding device 69 becomes possible.

Further, when the manual lever 73 is moved up to the position shown in FIG. 16 and the manual feed pawl 71 is engaged with the locking piece 71a, the stopping rod 60 is moved to the engaging portion 50a of the automatic feed rod 50.
And the automatic feed rod 50 is rotated backward, so that the automatic feed claws 51 of the automatic feed rod 50 are also disengaged from the claw holes 308, and the seedling box is allowed to fall freely.

The manual feed rod 70 also serves as a stopper for preventing the seedling box from falling when the seedling box is loaded. 76 is a spindle 77
The tip bending portion 76a of the stopper arm is rotatably supported on the projection 70a formed on the side surface of the manual feed rod 70. Stopper arm 7
Reference numeral 6 is provided on a path through which the ear 307 of the seedling box passes, and is urged by a spring 78 in a direction opposite to the feeding direction of the seedling box. When the seedling box 300 is present on the transport path, the stopper arm 76 is pushed by the seedling box 300 and
7, the manual feed rod 70 is free. However, when the seedling box disappears on the transport path, the stopper arm 76 rotates to the position shown by the solid line in FIG. 17 due to the contraction force of the spring 78, and the distal bent portion 76a engages with the projection 70a. Operation 70 is restricted. Therefore, if the seedling box 300 is loaded when the seedling box of the seedling box feed stand 14 is empty, the seedling box 300
Is once received and held by the manual feed pawl 71 of the manual feed rod 70. In this way, it is possible to prevent the seedling box from suddenly dropping to the lower part of the seedling box transport section 23 when the seedling box is loaded and causing trouble in the seedling and seedling box feeding device 15. By operating the manual lever 73 and slightly raising the manual feed rod 71,
The bent portion 76a of the stopper arm and the projection 70a are disengaged from each other, and the manual feed rod 70 becomes free, so that the held seedling box can be dropped. When the seedling box falls, the stopper arm 76 is pushed to the position shown by the chain line.

The rod 80 on which the spring 78 is loosely fitted is linked to the swing arm 53 by a connecting member 81. When the swing arm 53 swings upward, that is, when the automatic feed claw 51 and Suppressing claw 61 is claw hole 3
When the distance from the position 08 is released, the spring 78 is contracted and the urging force of the stopper arm 76 is increased. As described above, the seedling box 300 is held by the leaf spring brake 65 when the automatic feeding claw 51 and the stopping claw 61 are disengaged from the claw hole 308 immediately before the seedling feeding. The leaf spring brake 65
Just cannot be supported. Therefore, at this time, the stopper arm 76 acts as a brake for preventing the upper seedling box from moving downward, and assists the leaf spring brake 65.

A sensing switch 93 for sensing the presence or absence of a seedling box is provided between the manual feed rod 70, which is a stopper for preventing falling, and the seedling pushing position 27, and the detection result is output to, for example, a seedling reduction lamp 94 of a center mascot. It is displayed. When the seedling reduction lamp 94 is turned on, the operation is stopped, a new seedling box is supplied to the seedling box mounting unit 21, and the empty boxes loaded in the empty box storage unit 24 are removed. If the sensing switch 93 is provided at the position of the present embodiment, seedlings can be replenished before the seedlings completely disappear, so that planting shortage is prevented and the manual feed rod 7 is provided.
When 0 functions as a stopper, the sensing switch 9
3 senses the decrease in seedlings, the replenished seedling box is once received by the manual feed rod 70, and displacement of the seedling box due to impact or the like can be prevented.

The seedling pushing device 16 is provided with the seedling box feeder 14.
A predetermined number (14 in the illustrated example) of seedling pushing pins 100,... For pushing out seedlings one row at a time from the seedling box located at the seedling pushing position 27 of FIG. Seedling push pin 10
0,... Are attached to the bar 101 in the left-right direction,
Seedling pushing rods 102, 10 supporting both ends of the bar
2 is moved back and forth, and when the seedling pushing pins 100,... Protrude backward, the seedling pushing pins are inserted into the seedling pushing holes 303 of the seedling box to push the seedlings in the pot 301 backward.

The drive mechanism of the seedling pushing rod is configured as shown in FIG. Reference numeral 105 denotes a gear case, and the base of the seedling pushing rod 102 is slidably supported in the gear case 105. A rack 106 is formed at the base of the seedling pushing rod 102, and a fan-shaped pinion 107 meshing with the rack is provided in the gear case 105. Pinions 107, 10 in left and right gear cases 105, 105
7 is attached to a common shaft 108, and a swing arm 109 fixedly attached to one end of the shaft 108 and a drive arm 110 attached to a second drive shaft 212 described later are connected by a shock absorber 112. ing. Buffer connector 112
Are the cylinder 113 on the side of the swing arm 109 and the drive arm 11
The rod 114 on the 0 side is slidably fitted, and the rod 11
The springs 116 and 117 are interposed between the flange 115 fitted to the middle part of the cylinder 4 and the upper and lower walls of the cylindrical body 113.

When the drive arm 110 rotates in the direction of the arrow from the position shown in FIG.
6, the swing arm 109 rotates upward, the pinion 107 further rotates clockwise, and the seedling pushing pins 110 project. Drive arm 1
When the rotation of 10 exceeds the dead center, the compressed spring 11
6 rebounds, the shock-absorbing connector 112 contracts, the swing arm 109 rotates downward, and the pinion 107 further rotates.
Rotate counterclockwise, and the seedling pushing pins 110,. That is, the protrusions of the seedling pushing pins 110,... Are forcibly driven via the springs 116, which are cushioning materials, and the retreating of the seedling pushing pins 110,. When the seedling pushing pins 110 are retracted to a predetermined position, the flange 115 moves to the step 113 of the cylindrical body 113.
a, and the subsequent downward movement of the rod 114 is absorbed by the spring 117, and the seedling pushing pin 11
The overstroke of 0,... Is prevented.

The seedling delivery device 17 has a common support shaft 121.
a, a pair of left and right links 1 each having a base supported by 122a
21, 121, 122, 122, and connecting shafts 121b, 121b, 122b, 122b
A parallel link device is constituted by the brackets 123, 123 connected by the
The seedling holder 125 is mounted on the holding frame 124 provided between the
Is held. The seedling holder 125 is formed with concave portions 125a, into which the floor soil portion 310a of the seedling 310 is fitted.

The concave portion 125a has a circular shape with an open top when viewed from the rear, and ribs 126, 126 are formed at the rear end portion of the side wall surface, and a resistance plate 127 is provided at the bottom portion. The resistance plate 127 is rotatably attached to the shaft 128, and is urged upward by a spring 129. When the seedling is pushed into the recess 125a, the pot portion of the seedling pushes down the resistance plate 127. Seedling is concave 125
If the seedlings are completely contained in a, the resistance plate 127 protrudes above the bottom surface of the concave portion 125a, so that the seedlings cannot be pulled forward.

The drive mechanism of the seedling transfer device 17 includes a swing arm 131 attached to the support shaft 122a of the lower links 122, 122 and a drive arm 132 attached to the second drive shaft 212 connected by a buffer rod 133. Arm 13
2 is rotated in a certain direction to swing the swing arm 131. The buffer rod 133 includes a rod 133a on the swing arm side and a rod 133b on the drive arm side.
, So that both transmit power via the spring 134. Reference numerals 135 and 136 in FIG.
2 is a stopper for restricting the vertical rotation range of the second.

The pair of left and right links 121, 121, 122, 122 swing up and down by the action of the drive mechanism, and the seedling holder 125 moves the seedling receiving position (E) and the seedling releasing position (FG) in FIG. Move between. Seedling holder 125 is F-
When the link shaft 121 is located at the intermediate point of G, the connecting shaft 121 is located immediately below the support shafts 121 a
Since b and 122b are located, the seedling holder 125 moves substantially horizontally forward between FG.

The seedling removing device 18 has a seedling removing tool 141 attached to an L-shaped arm 140. The tip of the seedling removal tool 141 has a concave portion 125a of the seedling holder 125,
, And each tip branch is bent as shown in FIG. 20 in a side view to form a nursery 310a.
And a seedling tapping portion 141b that contacts the upper surface of the seedbed 310a.

The L-shaped arm 140 is rotatably supported on a support shaft 143. Then, a seedling removing cam 144 is provided in the vicinity thereof, and a cam roller 145 that is in contact with the outer peripheral surface of the cam is attached to an appropriate position of the L-shaped arm 140. The L-shaped arm 140 is biased by a spring 146 in the direction of the cam 144. The cam 144 has a recess 1 in a part of the circumference.
44a are formed, and the cam rollers 145
Spring 146 only when it falls into its recess 144a.
The power of the seedling removing tool 141 is instantaneously moved downward. The cam 144 is also attached to the second drive shaft 212.

When the seedling holder 125 is at the seedling receiving position (E), the seedling pushing device 16 pushes out the seedlings from the seedling box, and the seedlings are pushed into the recesses 125a,. Then, while holding the seedling, the seedling holder 12
5 rotates to the release position (FG). Seedling holder 125
Move from point F to point G, the seedling removal parts 141a,... Of the seedling removing tool 141 are inserted into the recesses 125a of the seedling holder, and the seedlings held in the recesses are relatively pulled out rearward. . As described above, since the seedling holder 125 moves substantially horizontally forward between the FGs, the seedling removing portions 141a,... Are linearly inserted into the recesses 124a,. Is performed well. Further, when the seedling holder 125 reaches the point G, the seedling dropper 141 moves down, and the seedling hitting parts 141b,.
The seedlings extruded from are knocked down on the seedling transport belts 19, 19.

The seedling transport belt 19 is formed of two adjacent strips (L,
R) make a pair, and the pair of seedling transport belts 19 (L, R) are bilaterally symmetric. The seedling transport belt 19 is stretched around a pair of rollers 150 and 151, and the belt always moves in the direction of the arrow as the drive roller 150 rotates in a predetermined direction. The 14 seedlings transferred from the seedling transfer device 17 are placed on the upper surfaces of the right and left seedling transport belts 19 (L, R), seven by seven. Then, the seedlings are transferred to the seedling transport belt 19 (L,
R) transports the seedlings one by one to the seedling picking position T1 of the planting device 12 one by one. A guide plate 153 is provided below the seedling collecting position T1 for guiding the seedlings to the field when planting by the planting device 12.

The implanting device 12 includes a rotary case 160 having a circular shape in a side view, and a pair of spatula-shaped implanting rods 161 and 161 provided on the rotary case. The internal structure of the rotary case 160 is as shown in FIGS. In the figure, reference numeral 163 denotes a planting device mounting shaft supported on the rear end of the transmission case 10, and a fixed metal 165 is fitted to a distal end of the planting device mounting shaft by a key 164, and a rotary metal is further mounted on the fixed metal. Case housing 166 is fixed. Therefore, the rotary case 160 rotates integrally with the planting device mounting shaft 163. An annular guide groove 168a is provided around the planting device mounting shaft 163.
Is fitted. The cam 168 is rotatable with respect to the housing 166 by a bearing 169, and is integrated with a fixed plate 170 fixed to the transmission case 10 by a claw 168b. A pair of rollers 172 and 172 are fitted in the guide groove 168a of the cam 168. These rollers 172
Is an arm 1 rotatably fitted around the support shaft 173.
74. A gear 175 is formed on the arm 174, and the gear 174 meshes with a gear 178 attached to the planted rod attachment shaft 177. The implantation rod 161 is fixedly attached to the implantation rod mounting shaft 177 by cotter pins 179.

When the implanting device mounting shaft 163 rotates in a predetermined direction, the rotary case 160 integrated therewith also rotates, and the implanting rod 161 moves while drawing a closed locus T (see FIG. 23). At this time, the rollers 172 and 172 move along the guide groove 168a of the implantable rod operating cam 168, so that the arm 174 swings.
It is transmitted to the implanted rod mounting shaft 177 via 178. For this reason, the angle of the implantation rod 161 changes slightly during movement. That is, when passing through the seedling picking position T1, it is in a horizontal state, and is parallel to the seedling 310 supplied to the seedling picking position T1 by the seedling transport belt 19. Then, the seedling is rotated downward while maintaining its posture with respect to the rotary case 160, and guided through the guide plate 153 to the planting position T2. After the implantation, by changing the posture so that the implantation rod 161 rotates forward relative to the rotary case 160, the implantation rod 160 can be operated such that the implantation rod 160 is pulled out directly above. Separation of the rod 160 and the seedling is performed without difficulty, and the posture of the planted seedling 310 is not disturbed.

As shown in FIG. 4, the transmission case 10 includes three transmission cases 180,
,.., And four chain cases 181,..., Which are added to the interval portion and the outer end of the transmission case, and four chain cases 182,. Become. Mission case 18
The rear part of the cylinders 0,... Has a cylindrical shape protruding left and right, and is fixedly connected to the extension cases 181,. Central mission case 180
The input unit 183 is integrally formed in FIG. A rolling shaft 184 connected to the planting portion mounting device 5 is rotatably supported at the front end of the central transmission case 180 (C). Supported as possible. There are a total of six planting devices 12, one on each side of the rear end of the two chain cases 182 (2, 3) at the center and inside the rear end of the chain case (1, 4) on both the left and right sides. Is provided.

Next, the internal structure of the transmission case 10 will be described (see FIG. 26). FIG. 26 is an exploded cross-sectional view, and the directions and positional relationships of the respective parts are different from the actual ones. The PTO output of the traveling unit 2 is input to the input shaft 185 in the input unit 183, and the transmission case 1
, And the tubular portions 180b,.
A pair of bevel gears 1 is attached to the first drive shaft 186 supported inside.
90,191. This transmission is configured as a safety clutch. That is, the gear 190 is rotatably fitted to the input shaft 185,
And the gear 190 are transmission-coupled via a clutch body 192. The clutch 192 is slidable with respect to the input shaft 185, and is
2 is pressed toward the gear 190, so that both transmission claws 1
90a and 192a engage each other. Therefore, when the load exceeds a certain level, the clutch 192 is disengaged from the gear 190 against the pressing force of the spring 193, and the transmission is stopped. Tube 1 receiving spring 193
95 in the direction away from the clutch body 192.
, The transmission is stopped regardless of the magnitude of the load.

The first drive shaft 186 has the bevel gear 1
91, the sprocket wheel 2 for driving each planting device.
00,..., Bevel gears 201 for driving each seedling transport belt
, And gears 202 for transmitting to each shaft in the transmission case main body 180a, are mounted. The first drive shaft 186 is composed of three shafts 186 (L, C, R) divided into two-row units, and these shafts are connected by two central sprocket wheels 200, 200. ing.

Chains 205,... Are extended between the sprocket wheels 200,... And the sprocket wheels 204,. Each planting device 12,
... is always communicated to. The bevel gears 201,... Are meshed with bevel gears 208,... Attached to the seedling transport belt drive roller shafts 207, and are transmitted directly from the first drive shaft 186 to the seedling transport belt drive roller shafts 207,.

The mission case 180 is a planting section drive case having a drive shaft for driving each part of the planting section 3.
In the transmission case 180, a first drive shaft 186 is provided.
In parallel, a counter shaft 211, a second drive shaft 212, and a third drive shaft 213 are provided. Then, the seedling pushing drive arm 11 is provided on both left and right ends of the second drive shaft 212.
0 and a seedling transfer drive arm 132 are separately attached, and a seedling removal cam 144 is attached near the outer surface of the case. Also, the third drive shaft 2
At 13 is attached a seedling feed drive arm 58a having a tip connected to the seedling feed rod 58.

From the first drive shaft 186 to the second drive shaft 212 via the counter shaft 211, two sets of gears 202, 21
5 and 216, 217 at a reduced speed.
Further, the drive is transmitted from the second drive shaft 212 to the third drive shaft 213 by cam drive, and the third drive shaft 213 is intermittently driven.
219 is a cam attached to the second drive shaft 212, and 220 is a cam roller supported by an arm 221 attached to the third drive shaft 213.

A ridge clutch 230 constructed as follows is provided on the transmission portion of the gear 217 and the second drive shaft 212. The gear 217 is rotatably fitted to the second drive shaft 212, and the clutch 231 is non-rotatably and slidably fitted to the second drive shaft 212 in opposition thereto.
The 17 pawls 217a and the pawls 231a of the clutch body 231 are engaged with each other for transmission. Clutch body 23
1 is biased toward the gear 217 by the spring 232, so that the clutch 1 is always engaged. When the clutch pin 233 is pressed against the tapered surface 231b of the clutch body 231, both claws 217a and 231a are disengaged and the clutch is disengaged. At this time, the clutch is set to be disengaged when the clutch body 231 reaches a predetermined angle. Therefore, the automatic seedling box feeding device 15, the seedling pushing device 16, the seedling delivery device 17, and the seedling removing device 18 are designed to engage and disengage the clutch in units of two lines. Stopped.

Below the planting section 3, a center float 250 located at the center of the left and right sides is provided as a float for leveling.
(C) and a side float 250 (L, R) located behind the rear wheel of the traveling unit 2. Each of the floats 250 (L, C, R) has a wide front portion and a narrow rear portion, and is provided with groove forming devices 251 for forming grooves for transplanting seedlings on both left and right sides of the rear portion. Float 250
(L, C, R) are pivotally attached to a rear end of a float support rod 252 provided on the transmission case 10 so as to be rotatable up and down by a support pin (not shown), and a front part of the enlargement / reduction link 2 is provided.
The front part moves up and down according to the unevenness of the paddy field surface.

The center float 250 (C) is a sensor for detecting the height of the paddy field, and the hydraulic valve 2 for controlling the hydraulic cylinder 6 based on the vertical movement of the center float.
The spool 57 is switched, and the planting unit 3 is controlled so as to have a constant height with respect to the paddy field surface. For this reason, the planting depth of the seedlings is always kept constant. By rotating the float support rod 252 to change the support height of each float,
The planting depth of the seedlings can be adjusted.

The fertilizer applicator 4 includes a hopper 26 for storing fertilizer.
0 and a feeder 261 for feeding the fertilizer in the hopper downward.
And a fertilizing pipe 262 for guiding the fertilizer fed from the feeder to a groove for planting seedlings. At the time of planting work, a seedling box containing seedlings is loaded into the seedling box feed stand 14, the planting unit 3 is lowered to the work position shown in FIG. When the planting unit 3 is driven, the seedling box is transported along a predetermined transport route, and the seedlings pushed out of the seedling box during the transport are supplied to the seedling collecting position T1 one by one, and the seedlings are transferred to the machine body. The seedlings are planted by a planting rod 161 in a groove for planting seedlings formed in the field scene as the plant progresses. The seedling box after the seedlings are extruded is collected by the seedling box collection unit 24.
When the seedlings in the planting section 3 run out, the spare seedlings mounted on the traveling section 2 are supplied.

The spare seedling frame 270-1 for holding the spare seedlings is provided horizontally on both the left and right sides of the traveling unit body, and the hanger 320 is used to suspend the seedling box.
The spare seedling frame may be of any type (for example, made of a round pipe) as long as the hook described later on the hanger 320 can be hooked.

FIGS. 41 to 43 show one example of a hanger. The hanger 320-1 is used for the spare seedling frame 27.
The hook 321 includes a hook 321 for hooking the seedling box 300 and a clip 322 for sandwiching an end of the seedling box 300. The clip 322 directs the first clip member 323 to the upper boundary portion 306 of the seedling box, and the pot 301 adjacent to the boundary portion 306 by the second clip member 325 urged toward the first clip member 323 by the torque spring 324. , 301 are held. Second clip member 32
5 are provided at both ends with positioning horizontal plates 326 and 326 that abut the side surfaces of the pot. The opening operation of the clip 323 is performed by the finger contact portion 323a of the first clip member 323.
And the finger contact portion 325a of the second clip member 325 is sandwiched between two fingers.

At the time of replenishing seedlings, the worker stands at the rear end of step 2 a and stands in the seedling box 300 suspended on the spare seedling frame 270.
From the hanger 320, lift the seedling box as it is,
The seedling box may be slid into the seedling box mounting part after the lower end of the seedling box is brought into contact with the front end of the seedling box mounting part 21 (A or B). In this way, when the seedling box is lifted in a suspended position, the seedling box does not bend, and the handling of the seedling box is easy. If the seedling boxes suspended from the rear end side of the spare seedling frame 270 are sequentially loaded into the planting section, the seedling replenishment operation is easy. When the seedling box within reach is replenished to the planting area, hook 3 of hanger 320
What is necessary is just to slide the front seedling box backward while shifting 21 along the spare seedling frame 270. Seedling box with spare seedling frame 270
Since a large number of spare seedlings can be mounted on the traveling section 2 by suspending and holding the spare seedlings, it is not necessary to frequently transfer the spare seedlings during work, and the work efficiency is good.

[0051]

Embodiment 2 FIGS. 27 and 28 show different embodiments. The transplanter 1-2 includes a front and rear seedling box mounting portion 21.
The front end of (A, B) is curved upward, and has a shape suitable for receiving a seedling box supplied from above in a vertical state. The spare seedling frame 270-2 is formed in a U-shape in plan view by a vertical frame portions 271 and 271 along the outer edge of the fuselage and a horizontal frame portion 272 connecting the rear ends of the left and right vertical frame portions. It is located above the mounting portion 21 (A, B). The height of the spare seedling frame 270 is set such that the lower end of the seedling box is slightly higher than the upper end of the seedling box mounting portion 21 (A, B) when the seedling box is hung. The spare seedling frame 270 is a front support 27 that hangs from the front ends of the left and right vertical frame parts 271 and 271.
3, 273 and a rear support 274 that slightly projects forward from the center of the horizontal portion and then hangs down.

Hanger 320 used for hanging a seedling box
-2, two sets of clips 32 on both sides of a base plate 328 integrated with the hook 321 as shown in FIG.
2,322 are provided so as to hold two seedling boxes in parallel. The spare seedlings attached to the hanger 320 are suspended from the vertical frame parts 271 and 271. When the seedlings are replenished, the spare seedlings are moved to the horizontal frame portion 272, the seedling boxes 300, 300 are removed from the hanger 320 just above the seedling box feed stand 14 to be replenished, and the seedling boxes are dropped down as they are. It is supplied to the box mounting section 21 (A, B). Since there is no need to lift the seedling box, seedling replenishment is extremely easy.

[0053]

Embodiment 3 The spare seedling frame 270-3 of the transplanter 1-3 shown in FIGS. 29 and 30 is divided into two parts at the center of the horizontal frame part 272, and a gap 276 is formed between the left and right parts. I have.
The gap 276 is located between the cockpit and the seedling box feed stand 14,
A hanger collection box 277 is installed on the rear step 2a directly below the hanger collection box 277.

As in the second embodiment, the spare seedlings 270 are suspended from the vertical frame portions 271 and 271, and the spare seedlings are moved to the horizontal frame portion 272 and supplied to the seedling box mounting portion 21 at the time of replenishment. Since the horizontal frame portion 272 is located ahead of the seedling box placing portion 21, the seedling box removed from the hanger 320 needs to be slightly moved horizontally rearward, and the ease of seedling replenishment is higher than in the second embodiment. Somewhat inferior. On the other hand, by simply moving the hanger 320 from which the seedling box has been removed to the gap 276 along the horizontal frame 272, the hanger comes off the spare seedling frame and the rear support 2
The hangers can be automatically collected in the hanger collection box 277 by being guided by 74 and 274.

[0055]

Embodiment 4 A spare seedling frame 270-4 of the transplanter 1-4 shown in FIGS. 31 and 32 has a spare seedling suspension pipe 278,... Have been. Each spare seedling suspension pipe 278 is attached to the support shaft 280 in the left-right direction by a cylindrical base 279 at the front end, and the spare seedling suspension pipe 278 is always horizontal, but forwardly from the cylindrical base 279. When the protruding lever 281 is pulled downward, the spare seedling suspension pipe 278 is inclined upward and backward, and the suspended spare seedlings 300,... Fall forward.

[0056]

Fifth Embodiment A spare seedling frame 270-5 of the transplanter shown in FIGS. 33 and 34 is provided horizontally in the left-right direction.

[0057]

Sixth Embodiment A transplanter 1-6 shown in FIGS. 35 and 36 is an eight-row plant, and a spare seedling frame 270-6 of this transplanter is provided with a preliminary seedling suspension in the front-rear direction from the front end to the rear end of the body. A down pipe 283 is provided for each seedling box feed stand 14,.

[0058]

[Seventh Embodiment] As shown in FIG.
If the upper part of the side wall 21a of (A, B) is cut out, the spare seedlings can be supplied to the seedling box mounting part by lateral feeding. In this case, the two seedling boxes 30 held by the hanger 320
Seeding box placement part 21 for upper and lower seedlings at intervals of 0,300
It is preferable to make the interval equal to (A, B).

[0059]

[Embodiment 8] In the case of a seedling box feeder provided with a plurality of seedling box placing parts 21 and the distance between the seedling box placing parts 21,... Is narrow, as shown in FIGS. The upper ends 21b of the sections 21,... Can be bent forward, and when replenishing the spare seedlings, the upper end 21b of the seedling box placing section 21 to be replenished is bent forward to widen the seedling box insertion portion. It is good to make it.

[0060]

[Supplementary explanation] Hanger 320- used in each of the above embodiments.
Reference numerals 1 and 320-2 denote a hook 321 for hooking the spare seedling frame and a clip 322 for sandwiching the seedling box at an end.
And the spare seedlings are transferred to the spare seedling frame 27 of the transplanter.
The spare seedling box 300 was attached to the hanger 320 when it was hung to zero. On the other hand, the hanger 320-3 shown in FIG. 45 has the hook 321 and the clip 322A separately, and the clip 322 is attached to the seedling box in advance.

The hook 321 of the hanger includes a first hook 321a for hooking on the spare seedling frame and a second hook 321b for hooking the clip. On the other hand, the clip 322A is connected to the first clip member 323 to be brought into contact with the upper surface boundary portion 306 of the seedling box and the pot 3 on both sides of the boundary portion 306.
Second clip member 325 holding bottom of 01,301
The second clip member 325 is urged toward the first clip member 323 by the torque spring 324.
A lifting hole 330 is formed in the finger contact portion 323a of the first clip member 323, and a hanging hole 331 is formed in the finger contact portion 325a of the second clip member 325.

When the second hook portion 321b is hooked on the hanging hole 331 as shown in FIG. 45, the seedling box 300 is suspended vertically. Further, when the second hook portion 321b is hooked on the pulling hole 330 as shown in FIG. 46, it is convenient to pull up the seedling box 300 placed horizontally.

In this clip 322A, the body portion of the first clip member 323 and the finger contact portion 325a of the second clip member 325 are arranged in a straight line when the seedling box is sandwiched. When the seedling boxes 300,... Are laid down on top of each other, the finger pad 325a of the second clip member 325 abuts the border 306 of the adjacent seedling box, and the height of the seedling boxes is aligned.

The clip 322B shown in FIGS.
The first clip member 323 and the second clip member 3
25, a lifting member 333 rotatably provided with respect to 25 is formed with a hole 334 for lifting and hanging.
The second hook portion 321b is hooked on 34 to lift and lift the seedling box.

The clip 322 shown in FIGS. 50 and 51
In C, legs 335 and 335 are integrally formed at both ends of the hanging member 333 and extend to the opposite side of the pivot point of the member. When the seedling box 300 is hung using the clip 322, the legs 335 and 335 abut against the rear surface of the seedling box, and these legs 335 and 335 and the first clip member 323, as shown in FIG. Curve a little so that it becomes concave.
For this reason, the leaves of the seedlings 310 are densely overlapped with each other, so that the seedlings do not easily fall off, the rigidity of the seedling box is increased, and the lower part of the seedling box is hardly shaken.

[Brief description of the drawings]

FIG. 1 is an overall side view of a first embodiment.

FIG. 2 is an overall plan view of the first embodiment.

FIG. 3 is a side view of the planting section.

FIG. 4 is a plan view of a planting section.

FIG. 5 is a plan view of a main part of the planting part.

FIG. 6 is a plan view of a main part of the planting portion different from FIG.

FIG. 7 is a rear view of the planting portion with a part omitted.

FIG. 8 is a view taken in the direction of arrow A in FIG. 3;

FIG. 9 is a sectional view taken along line BB in FIG. 3;

FIG. 10 is a side view of the seedling box feeding device.

11 is a view as viewed in the direction of arrow C in FIG. 9;

FIG. 12 is a first explanatory diagram of the seedling feeding operation.

FIG. 13 is a second explanatory diagram of the seedling feeding operation.

FIG. 14 is a third explanatory diagram of the seedling feeding operation.

FIG. 15 is a first explanatory diagram illustrating the operation of the manual seedling feeding device.

FIG. 16 is a second explanatory diagram of the operation of the manual seedling feeding device.

FIG. 17 is a third explanatory diagram of the operation of the manual seedling feeding device.

FIG. 18 is a side view of a main part of the planting section.

FIG. 19 is a side view of the seedling pushing device.

FIG. 20 is a side view of the seedling delivery device and the seedling removing device.

FIG. 21 is a front view of a seedling holder and a seedling removal tool.

FIG. 22 is a sectional view of a seedling holder.

FIG. 23 is a side view of the planting device.

FIG. 24 is a sectional view of the planting device.

FIG. 25 is a side view showing the internal structure of the planting device.

FIG. 26 is an expanded sectional view of the transmission case.

FIG. 27 is a side view of the second embodiment.

FIG. 28 is a plan view of the second embodiment.

FIG. 29 is a side view of the third embodiment.

FIG. 30 is a plan view of a third embodiment.

FIG. 31 is a side view of the fourth embodiment.

FIG. 32 is a plan view of the fourth embodiment.

FIG. 33 is a side view of the fifth embodiment.

FIG. 34 is a plan view of the fifth embodiment.

FIG. 35 is a side view of the sixth embodiment.

FIG. 36 is a plan view of a sixth embodiment;

FIG. 37 is a perspective view of a main part of the seventh embodiment.

FIG. 38 is a side view 1 of a main part of the eighth embodiment.

FIG. 39 is a side view 2 of the main part of the eighth embodiment.

FIG. 40 is a side view 3 of a main part of the eighth embodiment.

FIG. 41 is a perspective view of a hanger.

FIG. 42 is a front view of the hanger shown in FIG. 41.

FIG. 43 is a side view of the hanger shown in FIG. 41.

FIG. 44 is a perspective view of a hanger.

FIG. 45 is a perspective view of a hanger.

FIG. 46 is a side view showing a state where the clip of the hanger shown in FIG. 45 is attached to the seedling box.

FIG. 47 is a front view of the clip.

FIG. 48 is a side view 1 of the clip shown in FIG. 47.

FIG. 49 is a side view 2 of the clip shown in FIG. 47;

FIG. 50 is a front view of the hanger.

FIG. 51 is a side view of the hanger shown in FIG. 50.

FIG. 52 is a sectional view taken along the line SS in FIG. 50;

FIG. 53 is a plan view of a seedling box.

54 is a view as viewed in the direction of the arrow D in FIG. 53.

FIG. 55 is an enlarged plan view of a seedling raising pot.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Rice transplanter 2 Running part 3 Planting part 4 Fertilizer application apparatus 5 Planting part mounting apparatus 270 Spare seedling frame 300 Seedling box 310 Seedling

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Tetsu Kato 1st Hachikura, Tobe-cho, Toyo-cho, Iyo-gun, Ehime Prefecture Iseki Agricultural Machinery Co., Ltd. Inside

Claims (2)

[Claims] In a transplanting machine for loading seedlings grown in a flexible seedling box together with a seedling box into a planting section, a spare seedling frame capable of holding and suspending the upper portion of the seedling box to hold it. , Which are provided side by side on the right and left sides of the fuselage. 2. The transplanter according to claim 1, wherein the transplanter is a spare seedling frame for suspending and holding a plurality of seedling boxes in the lateral direction of the machine.