JP2807138B2 - Transplanter seedling box vertical feeder - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a seedling box vertical feeding device for a transplanter.

[0002]

2. Description of the Related Art A seedling box having a large number of pots vertically and horizontally is loaded into a curved seedling box guiding means as a transplanter for upland fields for transplanting pot seedlings (planted seedlings) such as vegetables. The seedling box is intermittently sent one pitch at a time from above to below along the seedling box guiding means by the vertical feeding means, and the soiled seedlings in a row of pots in this seedling box are placed on the horizontal feeding means by the seedling pushing means. A method in which each seedling is supplied one by one to the planting means and planted by intermittent operation of the extruding and lateral feeding means is disclosed in, for example, Japanese Patent Publication No. 57-22282 and Japanese Patent Publication No. 57-222.
No. 88, for example.

[0003]

The seedling box vertical feeding means of the transplanting machine has a plurality of feed holes arranged in the right and left edge flanges of the seedling box at intervals in the feed direction, and is detachable from the feed holes. The feeding claw is intermittently driven from above to below by intermittent driving. However, since the feed holes are formed in the left and right side edge flanges of the seedling box, the seedling box can be used only for a transplanter having a feed nail, and thus has a problem of lack of versatility.

Further, the vertical feeding of the seedling box is performed by intermittently driving the feed claw with the feed claw engaging with the feed hole, and the engaging force of the feed claw repeatedly acts on the feed hole. Cracks are likely to occur and there is a problem in the durability of the seedling box, and accurate engagement of the feed claws with the feed holes is difficult to expect due to field running vibrations and the like, which has caused a vertical feed error.

Further, the seedling box is loaded into a curved guide means and vertically fed, so that the seedling box is bent during the vertical feeding, so that the seedlings can be easily and reliably pushed out of the pot portion. I have to. However, when the curved portion of the seedling box is a portion of the feed hole, bending stress acts on the feed hole portion, so that the feed hole portion is easily damaged at an early stage, and there is a problem in durability.

Therefore, the present invention focuses on the fact that a large number of pots arranged vertically and horizontally project from the rear surface, and a gap is formed between the pots. Accordingly, it is an object of the present invention to solve the above-described various problems in the related art in which a seedling box is vertically fed, thereby forming a feed hole in the seedling box.

[0007]

SUMMARY OF THE INVENTION The present invention relates to a seedling box 5 having a large number of pots 52 arranged vertically and horizontally projecting from a rear surface thereof.
1 is a seedling box longitudinal feeding device for feeding vertically from above along seedling box guiding means 45, and employs the following technical means in order to achieve the above-mentioned object.

That is, according to the present invention ,
By moving from left and right outside to left and right inside, the pot part
A feed pawl 55 to engage the 52, the pot portion said transmission Ritsume 55
And a feed claw driving means 74 for vertically feeding in a state engaged with the feed claw 52 . In addition, the present invention relates to the movement between the left and right outer sides and the left and right inner
Comprising a pair of feed pawls 55 to enter and exit by moving the right and left outwardly from, when said pair of feed pawl 55 is engaged with the pot portion 52 enters the space 54, the pot portion 5
A pair of right and left feed claws 5 for vertically feeding the seedling box 51 through
And it is characterized in that 5 comprises a feed pawl driving means 74 that drive the.

[0009]

In the transplanting operation, the seedling box 51 is loaded from the insertion opening 49 of the curved seedling box guiding means 45 of the transplanting machine 1 traveling in the longitudinal direction across the ridge 3. The seedling box 51 is provided with a large number of pots 52 arranged vertically and horizontally on the rear surface.
In the pot portion 52, seedlings 53 are raised.

The seedling box 51 loaded from the insertion opening 49 of the seedling box guiding means 45 feeds a pair of left and right feed claws 55 which enter and exit a gap 54 between pot portions 52 which are vertically adjacent to each other. By swinging downward in the feed direction, that is, downward by the means 74, intermittent feed is performed from the upper side to the lower side by one pitch via the pot portion 52. Even if the seedling box 51 is curved along the curved portion of the guide means 45 by this intermittent feeding, the feeding claw 55 is engaged and disengaged by using the gap 54 between the pot portions 52. Can be used as is.

A feed claw 55 is engaged with the pot portion 52 .
In combined state, by moving by one pitch downwardly said transmission Ritsume 55 with a nail driving section 74, seedling box 51 is longitudinal feed downward from above along the seedling box guide means. The feed claw 55 engages with the pot portion 52 by moving from left and right outward to left and right inward, and retreats after vertical feed .

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. Referring to FIGS. 5 and 6 showing the overall structure of the transplanter 1, the transplanter 1 is a traveling type having a steering handle 2 at the rear. In addition, the vehicle runs in the longitudinal direction across the ridge 3 covered with the multi-film.

The transplanter 1 has an engine 5 mounted on a gantry 4 at the front thereof, and the engine 5 is covered with a bonnet 7 having a spare seedling box platform 6 on the left and right. A transmission case 8 is fixed to a rear portion of the gantry 4.
Is linked with the output unit by a winding transmission 9.

The transmission in the transmission case 8 has a wheel transmission shaft 10 extending in the left-right direction and a PTO shaft 12 for driving a working unit 11. Transmission case 1 swinging up and down around the axis of
The left and right driving wheels 14 are supported via the transmission wheel 3, and the driving wheels 14 are linked to the transmission shaft 10 by a wrapping transmission body in the transmission case 13.

The left and right transmission cases 13 can be adjusted up and down around the axis of the transmission shaft 10 to adjust the relative vertical position between the drive wheels 14 and the ridges 3. A ground sensor 15 indicated by a roller via a stay is provided, and a cylinder 16 operated by a detection signal of the sensor 15 is provided.
It has. A fixed frame 17 that is fixed to one side of the gantry 4 and extends upward and extends rearward on a horizontal plane is provided. The rear end is bent inward in a plan view to form an attachment portion 18 of the steering handle 2. The attachment portion 18 and the bonnet 7
A space 19 is provided in front of and behind the rear part, and a working unit 11 is arranged in the space 19 and between the left and right drive wheels 14 as shown in FIG.

The working unit 11 comprises a seedling box device 20, a planting device 2
1. A multi-perforation device 22 and the like are provided on a movable frame 24 that swings up and down around the axis of a power receiving shaft 23 supported on a fixed side of the transmission case 8 and the like. The rear part of the movable frame 24 is suspended from the fixed frame 17 by an elastic support 25, and the elastic support 2
Reference numeral 5 denotes a female screw cylinder loosely inserted into a frame 26 pivotally supported by the fixed frame 17 and a male screw rod having a handle 27 screwed into the female screw cylinder. Are fitted, and the movable frame 24 is held by the elastic force of the spring 28.

The movable frame 24 is provided with a transmission case 30 having a wrapping transmission 29 for transmitting power to the seedling box device 20, the planting device 21 and the like, and the wrapping transmission 29 is interlocked with the PTO shaft 12. Have been. As shown in FIG. 4, the planting device 21 is supported on a movable frame 24 via a suspension link 31 by a parallel link 32 so as to be swingable in a vertical direction. Planting tube 3
3 is provided, and the crank body 3 is interlocked with the winding transmission 29.
4, and can be swung by a crank motion.

A multi-perforation device 22 is provided in front of the planting cylinder 33. The perforation device 22 has a gas burner using the gas of a propane gas cylinder 35 shown in FIG. 5 as a fuel. Holes are formed at intervals in the longitudinal direction of the ridge by baking with the burner.
No. 3 rushes and transplants seeded seedlings into the ridges.

In FIG. 5, reference numeral 36 denotes a pair of left and right front wheels, 37 denotes a ridge-and-shoulder roller, and 38 denotes an earth covering wheel. Referring to FIGS. 1 to 4, details of the seedling box device 20 in the working unit 11 are shown. The seedling box device 20 is mainly composed of a seedling box vertical feeding device 39, a seedling pushing means 40, and a seedling lateral feeding means 41.
4 is mounted via a pair of front and rear stays 42 and the like.

The seedling box vertical feed device 39 includes a pair of front and rear center guide rails 43 formed in an arcuate shape, and a pair of front and rear side guide rails disposed on the front side of the rails 43 and along the lower half. And a seedling box guiding means 45 consisting of:
The middle portion of the center guide rail 43 in the longitudinal direction is a vertical guide portion 46.
Upper and lower guides 4 which are curved in the same direction up and down
7, 48 are coupled.

The side guide rail 44 has an insertion opening 49 for a seedling box which is opened in a trumpet shape in the width direction of the seedling box (the front-rear direction of the transplanter) at the upper portion thereof.
Is located at the upper front side of the
The extension end is formed in cooperation with the lower guide portion 48 to form an outlet 50 for the seedling box, into which the seedling box inserted from the insertion port 49 as shown by the arrow A in FIG. 51 can be discharged from the outlet 50 between the ridges 3 on one side outward in the traveling direction while guiding the 51 in a curved manner.

The seedling box 51 is made of resin and has flexibility, and is provided with a large number of pots 52 arranged in rows and columns protruding from the rear surface. In the pots 52, soild seedlings 53 are raised. A space 54 is provided between the vertical and horizontal directions. Therefore, the operator loads the seedling box 51 from the insertion port 49 as shown by the arrow A in FIG. 1 and holds the insertion end. The upper guide portion 47 is bent toward the vertical space 54 so as to be bent.
This prevents displacement when vertically feeding downward in a curved position.

Here, by holding the seedling box 51 inserted by the upper guide portion 47 in a curved state, the detachment of the soild seedling 53 from the pot portion 52 is promoted, and the seedling box 51 is vertically moved. In the guide portion 46, by suppressing the curvature, a space 54 adjacent in the longitudinal direction is sufficiently ensured. The pot portion 52 of the seedling box 51 is formed in a tapered cylindrical shape to facilitate extruding of the seedling 53, and the bottom of the pot portion 52 is formed with an extrusion opening by the seedling pushing means 40.

The seedling box vertical feeding device 39 includes a pair of left and right feed claws 5 for intermittently feeding the seedling box 51 one pitch at a time in the vertical direction.
The feed claw 55 is adapted to enter and exit the gap 54 between the vertically adjacent pot portions 52 at the vertical guide portion 46. Feeding claw 55 is pot part 5
The support rod 5 has a U-shape that holds the front and rear
6 and a base end of the support rod 56 is mounted on a swing bracket 58 via a vertical shaft support 57.

A pair of front and rear swing brackets 58 are supported by a support frame 59 so as to be vertically swingable about a support shaft 60 having a longitudinal axis. By providing the feed claw 5
Numeral 5 feeds the seedling box 51 in the vertical direction, and can restore the old position after the vertical feeding. Further, the feed claw 55
The pair of left and right support rods 56 having the
As shown in FIG.
By this swing, the feed claw 55 enters the gap 54.
I'm going to leave.

As shown in FIG. 4, a relay transmission case 62 having a built-in relay transmission mechanism 61 using cams and gears is fixed to the rear wall of the support frame 59.
The input unit 63 of the internal transmission mechanism and the above-described winding transmission 29 are linked by a vertical winding transmission 64. As shown in FIG. 1, the output portion of the relay transmission mechanism 61 is distributed to a seedling box vertical feed driving rod 65, a seedling pushing drive rod 66, a seedling lateral feeding shaft 67, and the like.

The drive rods 65 and 66 are arranged side by side as shown in FIG. 1 and are reciprocated vertically. The shaft 67 is extended in the horizontal direction and has a drive sprocket 68.
As shown by the arrow, the endless chain 70 is wound around a driven sprocket 69 disposed in front of and behind the driving sprocket 68 to constitute a seedling lateral feeding means 41 for intermittently feeding one pitch at a time.

A large number of seedling receiving trays 71 are arranged in the endless chain 70 at intervals in the longitudinal direction, and the trays 71 swing about a longitudinal axis 72 shown in FIG. It is freely movable and has a vine spring 7
It is biased to an inclined posture by 3 or the like. A guide rail for holding the seedling receiving tray 71 in a horizontal position is provided on the fixed side, and a cutout portion is formed at the delivery end of the guide rail. The tray 7
It is possible to intermittently supply the top soiled seedlings 53 to the planting cylinder 33 one by one.

The driving rod 65 constitutes a part of the feed pawl driving means 74, and the first relay link is supported on the upper part of the rear wall of the support frame 59 by a support shaft 75 so as to be swingable in the left-right direction. The end of the drive rod 65 is pivotally supported by a short arm 76A with a pin with play. The first relay link 76 includes a short arm 76A and a long arm 76B integrally,
A manual operation lever 77 is provided on the support shaft 75 in parallel with the first relay link 76, and an arm 77A of the lever 77 and the long arm 76B are provided side by side on both sides. It is interlocked by a buffer coil spring 79 shown in FIG.

The support frame 59 is provided with a crank-shaped second relay link 80 swinging about the vertical axis shown in FIG. 3. The second relay link 80 and the manual operation lever 77 are connected by a connecting rod 81. Pivotally connected to the second relay link 8
One of the arms 80A is engaged with a notch recess 58A formed in the upper part of the swing bracket 58 with play in the left-right direction.

The other arm 80B of the second relay link 80
Is connected to one end of an interlocking link 82 swinging about a vertical axis shown in FIG. 3 by a first link 83, and has the other end of the interlocking link 82 and a feed claw 55, while the front support rod 56 in FIG.
Are connected by a second link 84, and further a first link 83
A third link 85 arranged in a superimposed manner below the link has one end of the interlocking link 82 and the feed claw 55, while the support rod 56 on the rear side in FIG.
2, the first to third links 83, 84, 85, etc. are a pair of feed claws 5;
The opening / closing link mechanism for opening / closing the feed claw 5, that is, moving the feed claw 55 into and out of the gap 54 adjacent in the vertical direction is configured.

The drive rod 65 and the first relay link 7
6. The second relay link 80 and the like constitute a feed pawl driving means 74. Therefore, in the first embodiment shown in FIGS. 1 to 4, the push-pull operation of the drive rod 65 causes the manual operation lever 77 to swing left and right around the axis of the support shaft 75 via the first relay link 76. This movement is converted into the forward and backward swing movement of the second relay link 80 within the range of play with respect to the notch recess 58A of the swing bracket 58 through the push-pull movement of the connecting rod 81, and thereby the opening and closing link mechanism 82 When the pair of supporting rods 56 are swung about the shaft support 57 as a fulcrum through 85, the feed claws 55 enter and exit the gaps 54 adjacent in the vertical direction.

On the other hand, the notch recess 58 of the swing bracket 58
When the second relay link 80 swings back and forth beyond the range of play with respect to A, the swing bracket 58 swings up and down around the support shaft 60, and the feed claw 55 enters the gap 54. At this time, by swinging the swing bracket 58 downward, the seedling box 51 is fed one pitch in the vertical direction, and then the feed claws 55 are retreated from the gap 54 to swing the swing bracket 58 upward. Accordingly, the seedling box 51 is ready for the next vertical feeding, so that the seedling box 51 is intermittently fed one pitch at a time in the vertical direction.

Incidentally, by manually operating the manual operation lever 77, the seedling box 51 is manually fed vertically one pitch at a time. This is a preparation work for loading the seedling box 51 into the insertion slot 49 and starting operation. It is useful in such cases. Seedling pushing means 4
0 is arranged in the bow-shaped space of the central guide rail 43 together with the feed claws 55 and the like, and a row of soiled seedlings 53 is placed on the tray 71 of the lateral feed means 41 behind the vertical guide portion 46 in the central guide rail 43. A protruding pusher 86 is provided.

As shown in FIGS. 3 and 4, the pusher 86 is arranged in a comb shape on a slider 87. The slider 87 slides on a slide guide 88 projecting inward from the side wall of the support frame 59. It is movably supported. Slider 8
A bracket 89 having a long hole 89A shown in FIG. 2 is fixed to both ends (front and rear) of the bracket 7, and a pair of second swing links 90 having an engagement piece 90A fitted into the long hole 89A is supported by a support frame. 59 are respectively supported on the front and rear walls by a horizontal axis 90B.

On the other hand, the end of the pushing drive rod 66 is connected to a first swing link 91 pivotally supported via a horizontal shaft 91A.
Of the first swing link 91
Is connected to the lower end of the first swing link 90 by a connecting link 92. Therefore, the push-pull movement of the drive rod 66 is transmitted to the second swing link 90 via the first swing link 91 and the connecting link 92, and is transmitted to the slider 87 by the left and right swing of the link 90, and the slider 87 is moved. Reciprocates linearly on the slide guide 88, thereby pushing a row of soiled seedlings 53 from behind the pot portion 52 onto the tray 71 of the seedling lateral feeding means 41 via the pusher 86, and then retreats.

The seedling pushing means 40 operates the pusher 86 in the pushing direction when the seedling lateral feeding means 41 is in a standby state for stopping and the seedling box vertical feeding means 39 is in a standby state for stopping. I do. The seedling lateral feeding means 41 is intermittently fed one pitch at a time from the state where the seedlings 53 with a row of seedlings are supported on the tray 71 and dropped and supplied one by one to the planting cylinder 33 at the sending end. .

In order to ensure the falling supply, the reciprocatingly swinging seedling removing means 9 is provided above the sending end of the seedling lateral feeding means 41.
3 are provided. On the other hand, when the seedlings are laterally fed by the seedling lateral feeding means 41, the seedling box vertical feeding device 39 vertically feeds the seedling boxes by one pitch. FIGS. 7 and 8 show a second embodiment of the present invention. Since the basic configuration is the same as that of the first embodiment described above with reference to FIGS. The differences will be described below.

A driving unit 94 of the lateral seedling feeding means 41 is provided with a relay transmission means 95 comprising a cam or the like for vertically feeding a seedling box and pushing out a seedling. Two links which swing in conjunction with the means 95 are provided. One of the levers 96 and the first relay link 76 are interlockingly connected by a push / pull rod 97, and the other link lever 96 and the pushing lever 9 provided side by side on the support shaft 75.
8 is linked by a push-pull rod, and the pushing lever 98 and the second swing link 90 are connected to each other by a link 9 having a buffer spring.
They are connected by two.

Therefore, in the second embodiment shown in FIGS. 7 and 8, a link lever 96 and a push-pull rod 97 are used instead of the drive rods 65 and 66 of the first embodiment. The movement of the claw driving means 74 is the same as that of the first embodiment. 9 and 10 show a third embodiment of the present invention, in which the claw driving means 74 in the seedling box vertical feeding device 39 is a rotary type.

In FIGS. 9 and 10, a disk 100 is fixed to a drive shaft 99 which is linked to the relay transmission mechanism. 56 is a coil spring 102
It has been attached by being pulled by. On the other hand, disk 100
A cam floor 103 is provided on the fixed side in contact with the cam floor 103, and a cam roller 104 provided at the base end of the support rod 56 is urged against the cam floor 103 by a coil spring 102 in a pressing direction.

The cam floor 103 and the cam roller 104 are
When the disc 100 is rotated, the cam roller 104 rolls on the cam floor 103, and the feeding claw 55 is
5, when it reaches the vicinity of the vertical guide portion 56, the support lever 56 is swung about the pivot means 101 as a fulcrum so that the feed pawl 55 enters the gap 54 against the elastic force of the coil spring 102, and the support rod 56 is closed. Hold the seedling box 51 vertically and when the cam roller 104 passes the cam floor 103, the coil spring 10
The feeding claw 55 is made to retreat from the gap 54 with the elastic force of 2.

In the third embodiment, the coil spring 102 causes the feed claw 55 to retreat from the gap 54 instantaneously. However, the feed claw 55 may be made to enter instantly.

[0044]

As described in detail above, the present invention relates to a pot portion.
52 by moving from left and right outside to left and right inside.
A feed claw 55 that engages with the slot 52;
Is provided with a feed claw driving means 74 for vertically feeding in a state of being engaged with the socket 52 , so that the seedling box 51
It is not necessary to form a feed hole or the like in the seedling box 51 in order to feed the seedling vertically. Here, the seedling box 51 has generality, and since there is no feed hole, the seedling box 51 can be curved. Longitudinal feeding without cracks.

Further , the feeding claw 55 is
By moving from left and right outside to left and right inside, the pot portion 52
Because it is disengaged, Japanese Utility Model Publication No. 5-4820 and
And Japanese Patent Application Laid-Open No. 52-131838.
The transport pins or support rods arranged in the end band (chain, chain)
As described above, engage with multiple pots in the vertical direction (feed direction).
It is not dependent on the pitch of the chain (chain)
The seedling box can be sent vertically without any need.

[Brief description of the drawings]

FIG. 1 shows a first embodiment of the present invention, and is a front view of an essential part in a state in which soil seedlings are projected from a seedling box.

FIG. 2 shows the first embodiment of the present invention, and is a front view of a main part at the start of the seedling box longitudinal feed when the seedling pushing means is retracted.

FIG. 3 shows the first embodiment of the present invention, and is a plan view of a main part at the start of seedling box longitudinal feeding when the seedling pushing means is retracted.

FIG. 4 is a side view of a main part of the first embodiment of the present invention, when the seedling pushing means is retracted and the seedling box longitudinal feed is started.

FIG. 5 is an overall side view of the transplanter.

FIG. 6 is an overall plan view of the transplanter.

FIG. 7 is an elevation view of a main part showing a second embodiment of the present invention.

FIG. 8 is a plan view of a main part showing a second embodiment of the present invention.

FIG. 9 is an elevation view of a main part showing a third embodiment of the present invention.

FIG. 10 is a plan view of a main part showing a third embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Transplanter 45 Seedling box guide means 51 Seedling box 52 Pot part 54 Air gap 55 Feeding nail 74 Feeding nail driving means

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-52-131838 (JP, A) Japanese Utility Model Application Hei 5-4820 (JP, U) (58) Fields investigated (Int. Cl. ⁶ , DB name) A01C 11/02

Claims (2)

(57) [Claims] 1. A seedling for vertically feeding a seedling box (51) having a large number of pots (52) arranged vertically and horizontally on a rear surface thereof along a seedling box guide means (45). A box vertical feeding device, wherein the pot portion (52) is moved from left and right outer sides to left and right inner sides.
The feed claw (5 ) that engages with the pot portion (52) by moving
5) and the feed claw (55) is moved to the pot portion (52).
And a feed claw driving means (74) for vertically feeding in an engaged state . 2. A seedling box (51) having a large number of pots (52) arranged in rows and columns protruding from the back thereof is vertically arranged from above along a curved seedling box guiding means (45). A seedling box vertical feeding device for feeding, in which a gap (54) between vertically adjacent pot portions (52) is moved left and right inward from left and right outside and left from left and right inside.
A pair of right and left feed claws (5
5) provided with a, when said pair of right and left feed pawl (55) is engaged with the pot portion to enter (52) to the gap (54), seedling box through the pot section (52) (51 ) a longitudinal feed seedling box longitudinal feeding apparatus transplanter, characterized in that it comprises a you drive a pair of left and right feed claw (55) feeding pawl driving means (74) in order to.