JPH04187005A - Seedling box for pot seedling - Google Patents

Abstract

PURPOSE:To surely feed seedlings pushed out of a pot part with a seedling receiving tool by deforming both left and right ends of a seedling box so as to prevent tips of feeding pawls from projecting over the top surface of the seedling box body. CONSTITUTION:Left and right ends (22b) of a seedling box 14 are formed so as to be displaced to the bottom side of a pot part 22 and tips of guide side plates 16 and feeding pawls 29 projecting from the guide side plates 16 are prevented from projecting from the top surface (22c) of the seedling box body (22a). Even if the seedlings pushed to a seedling receiving tool 63 are slightly moved in the direction opposite to the pushing, the traverse feeding of the seedlings is hardly inhibited.

Description

[Detailed description of the invention] (Industrial application field) The present invention relates to a seedling box for potted seedlings.

(Prior art) In a transplanter for field use for transplanting potted seedlings of vegetables, etc.
After loading a seedling box with a large number of pot parts in the vertical and horizontal directions into the seedling box guiding means, the seedling box is intermittently sent one pitch at a time along the seedling box guiding means from the top to the bottom by the seedling box feeding means. The seedlings in the pots in a horizontal row of the seedling box are pushed out onto the horizontal feeding means by the seedling pushing means, and each image is supplied one by one to the planting means by the intermittent operation of the horizontal feeding means to be planted. be.

Figures 13 and 14 show a conventional seedling box 114 employed in such a transplanter.

This seedling box 114 is made of a relatively thin flexible material such as plastic, and includes a central seedling box main body 122a consisting of a large number of pot parts 122, and guide side plates 116 provided on both left and right sides of the seedling box guide means of the transplanter. It is integrally configured with left and right end portions 122b that engage with the left and right end portions 122b.

Reference numeral 123 denotes feed holes formed at regular intervals on both the left and right ends 122a, and as shown in FIG. By engaging and pushing down the left and right end portions 122b one pitch at a time, the seedling box 114 is intermittently sent downward along the seedling box guide means.

In addition, 108 is a transverse feeding means in the transplanter, and the seedling A' pushed forward by the seedling pushing means (not shown) is placed on the seedling holder 163 of this transverse feeding means 108, and is transferred to the 13th
It is designed to be sent intermittently in the direction of the arrow in the figure.

(Problems to be Solved by the Invention) In the conventional seedling box 114, as shown in FIG. 13, the upper surface 122c of the seedling box main body 122a and the left and right end portions 122b are simply formed flush with each other. When the seedling A'' is displaced from the predetermined position to the seedling box 114 side with respect to the seedling holder 163 and placed on top of it, as shown in the seedling A'' on the right side of FIG.
The bottom side of the seedling A' may get caught on the holding part 116a of the guide side plate 116 or the tip of the feeding claw 129 protruding from the holding part 116a, and the seedling A' may be crushed or protruded from the seedling holder 163. Subsequent feeding of the seeds to the seedlings was sometimes inhibited.

On the other hand, in order to solve the above-mentioned inconvenience, it is conceivable to arrange the seedling holder 163 as a whole further away from the front (in the extrusion direction of the seedling A''), but the seedling holder 163 is originally
Since it directly catches the seedling A' that has emerged from the pot 122, it is desirable to place it as close as possible to the pot part 122.

Further, an immovable chute or the like may be provided between the pot portion 122 and the seedling holder 163, but this would complicate the mechanism and increase the chance of damaging the seedlings.

In view of these circumstances, the present invention provides a seedling box that can more reliably send seedlings pushed out from a pot to a seedling receiver without making any fundamental changes to the transplanter. The purpose is to

(Means for solving the problem) The technical means taken by the present invention to achieve the above object are as follows:
It includes a seedling box main body 22a consisting of a large number of pot parts 22 arranged vertically and horizontally in a plan view, and left and right end portions 22b that engage with guide side plates 16 provided on both sides of the seedling box guide means 5 of the transplanter 3. In a seedling box for potted seedlings, in which sending holes 23 are provided at regular intervals on both ends 22b, through which feeding claws 29 of the seedling box sending means 6 of the transplanter 3 engage from the bottom side of the bot part 22, Both end portions 22b are arranged so that the tip of the feed pawl 29 does not protrude beyond the top surface 22c of the seedling box body 22a when engaged with the feed hole 23.
It is located at the point where it is displaced toward the bottom side.

(Function) As shown in FIG. 1, the left and right end portions 22b of the seedling box 14 according to the present invention are formed to be displaced toward the bottom surface of the pot portion 22, and protrude from the guide side plate 16 and the side plate 16. Since the tip of the feed claw 29 is designed not to protrude beyond the upper surface 22c of the seedling box main body 22a, even if the seedling ^ placed on the seedling holder 63 moves slightly in the anti-extrusion direction, the lateral feed of the seedling A is prevented. is rarely hindered.

(Example) Hereinafter, the example of the present invention will be described in detail based on the drawings.
1 and 12, reference numeral 1 indicates a ridge in the field, which is covered with a mulch film 2, and the transplanting machine 3 straddles this ridge 1.
is now running.

The transplanting machine 3 is a walking type, and is equipped with a seedling box guiding means 5, a seedling box feeding means 6, a seedling pushing means 7, a lateral feeding means 8, a planting means 9, etc. on the rear side of the body 4. The fuselage 4 has a front wheel 10 at its front end, and rear wheels 11 on both sides of the rear, and is configured to travel by driving the rear wheels 11 with the power of an engine 12 mounted in the center. A handle 13 is provided at the center of the rear end of the 11 body 4.

The seedling box guide means 5 is for guiding the seedling box 14 for potted seedlings from above to below, and as shown in FIGS. 3 to 5, it includes a guide plate 15 curved in an arc shape, The guide plate 15 is provided with guide side plates 16 having an inverted cross section fixed in a curved manner to the left and right sides of the guide plate 15, and arcuate guide pieces 17 fixed to the inside of each guide side plate 16. On the information board 15,
Two guide rods 18 are provided to protrude diagonally upward at the rear so as to receive and guide the seedling box 14 loaded in the seedling box guide means 5 from below. Note that the guide plate 15 is provided with two guide ribs 19 that are continuous with the guide rod 18 and also serve as reinforcement. The guide plate 15 is fixed to the body 4 via a rectangular mounting frame 20 and two support plates 21.

The seedling box 14 according to this embodiment is made of a flexible material such as thin plastic, and as shown in FIG.
a, and both left and right end portions 22b integrally molded on both left and right sides of the main body 22a.

Reference numeral 23 denotes feed holes formed in both left and right end portions 22b and arranged vertically at equal pitches with the pot portions 22. Each feed hole 23 is provided so as to coincide with the center of the pot portion 22, and An extrusion hole 24 is formed at the bottom.

In addition, in this embodiment, both left and right ends 22b of the seedling box 14 are
As shown in FIG. 1, the tip of the feed claw 29, which will be described later, when engaged with the feed hole 23 is positioned on the upper surface 22c of the seedling box main body 22a.
The upper surface 22c of the main body 22a is
It is formed so as to be displaced toward the bottom surface of the pot portion 22 and to form a stepped shape.

Then, the seedling box 14 is loaded into the seedling box guide means 5 so that both left and right edges are between the holding part 16a of the guide side plate 16 and the guide piece 17, and the bottom surface of the pot part 22 is slid onto the guide plate 15. It is guided along the guide plate 15 so as to move.

Regarding this seedling box 14, the distance between the left and right feeding claws 23 is adjusted so that it can be compatible with the seedling box feeding means 6 and the seedling box guiding means 5 even if the size of the pot part 22 is changed. lx, the width Y and length Z of the feed hole 23 itself are preferably standardized.

The seedling box feeding means 6 transports the seedling box 1 loaded into the seedling box guiding means 5.
The seedling pushing means 7 is for pushing out the seedlings 25 in a horizontal row of the seven seedling boxes 14 onto the horizontal feeding means 8 at the same time. . The seedling box feeding means 6 and the seedling pushing out means 7 are arranged so that, inside the curved part of the seedling box guiding means 5, the seedling pushing out means 7 is located in the center, and the seedling box feeding means 6 are located on the left and right sides thereof, respectively. It is located. Below, each of these means 6
, 7°8 will be explained.

As shown in FIGS. 3 and 4, the seedling box feeding means 6 includes a rotation shaft 26 inserted into and supported by the support plate 21, and a feed arm fixed to both ends of the rotation shaft 26 so as to be able to swing vertically. 27, a feed pawl 29 pivotally attached to the tip of each feed arm 27 with a pin 28, and a pin 30 pivotally attached to each feed pawl 29 so as to be inserted into and removed from the feed hole 22 in conjunction with each feed pawl 29. A regulating claw 31 is provided.

The feeding claw 29 is connected to the sending arm 27 by a hanging spring 32, so that the claw portion 33 is inserted into the feeding hole 2 of the seedling box 14.
3, and when the feed arm 27 is lowered, it engages with the lower edge of the feed hole 23 and the seedling box 1
4 is sent downward by one pinch.

The regulating pawl 31 engages with the upper edge of the feed hole 23 at the feeding position of the seedling box 14 to restrict downward displacement of the seedling box 14, and when the feeding pawl 29 moves upward, pin 3
4, and when the feed pawl 29 descends to its lower limit, it comes into contact with the stopper 35 of the mounting frame 20 and is locked to engage with the upper edge of the feed hole 23. .

Note that the tips of the feed claw 29 and the regulation claw 31 are connected to the guide side plate 16.
The lower end of the elongated hole 36 is arranged so that the pot part 22 coincides with the center of the seedling extrusion means 7 when the claw part 33 is engaged. Seedling extrusion means 7 from the center by half the length of the feed hole 23
is lower than the center height of

Each feed arm 27 is biased downward by a spring 38 suspended between the lever 37 and the mounting frame 20 side, and a cam roller 39 is attached to the negative lever 37.

As shown in FIGS. 3 and 5, the seedling extrusion means 7 has the same number of pots (seven in the embodiment) arranged in a horizontal line corresponding to each pot part 22 in a horizontal line of the seedling box 14. The push-out rods 40 are each attached to a push-out body 41 so as to protrude forward.

The extrusion frame 41 is supported by a pair of left and right guide rods 42 fixed to the support plate 21 so as to be slidable back and forth, and the extrusion frame 41 is attached to an extrusion arm 44 of a rotating shaft 43 inserted and supported by the support plate 21. They are connected via a rond 45. In addition, an opening 46 is formed in the guide plate 15 corresponding to each push-out rod 40, and a spring 46a hung between the push-out arm 44 and the mounting frame 20 side allows the push-out rod 40 to be pushed out from the guide plate 15. It is also biased rearward so as to pull it in toward the rear.

A lever 48 that controls the cam roller 47 is fixed to the rotation shaft 43. The cam rollers 39 and 47 are arranged close to each other on the left and right, and the seedling box feeding cam 49 and the seedling pushing cam 50 corresponding to the cam rollers 39 and 47 are connected to the cam shaft 5.
It is fixed at 1. The camshaft 51 is rotatably inserted and supported by the support plate 21 and has a large diameter gear 52 which meshes with a small diameter gear 54 of the drive shaft 53. The drive shaft 53 is interlocked and connected to the engine 12 via a wrap-around transmission mechanism 56 inside a transmission case 55.

The cams 49 and 50 are attached to the cam shaft 51 in a phase relationship such that the seedling box pushing means 7 performs the pushing operation after the sending operation of the seedling box feeding means 6 is completed. Further, the drive shaft 53 is inserted and supported by the support plate 21.

The horizontal feeding means 8 receives the seedlings A pushed out from the pot portions 22 in a horizontal row of the seedling box 14 by each pushing rod 40 of the seedling pushing out means 7, and the planting means 9 receives the seedlings A and intermittently supplies them one by one to the planting means 9. It is something.

This cross-feeding means 8 is shown in FIGS. 3, 5, 7, and 8.
As shown in the figure, a chain 59 is wound between a pair of left and right sprockets 57, 58, an oval guide plate 60 is placed near the rear of the chain 59, and pins are placed at equal intervals on a bracket 61 of the chain 59. A seedling holder 6 is pivotally supported at 62 and slidably guided by the outer periphery of an oval guide plate 60.
3.

On the oval guide plate 60, the planting is at a position corresponding to the means 9,
A notch 60a is formed so that the seedling holder 63 is tilted around the pin 62 and the seedling A thereon falls into the means 9 for planting. One sprocket 57 is as shown in FIG.
A transmission shaft 64 in the longitudinal direction is interlocked with a transmission shaft 68 in the lateral direction via a bevel gear mechanism 67 in a gear box 66 . Further, as shown in FIGS. 3 and 5, the transmission shaft 68 is operatively connected to the drive shaft 53 via a Geneva mechanism 69.

The Geneva mechanism 69 has a transmission shaft 6 having four engaging recesses 70.
It consists of a Geneva gear 71 on the 8 side and a Geneva wheel 73 on the drive shaft 53 side having two retaining pins 72.

Further, the gear ratio between the small diameter gear 54 and the large diameter gear 52 is 1:3.5. The seedling box feeding means 6, the seedling pushing out means 7, and the horizontal feeding means 8 are one part of the seedling box feeding means 6, etc.
The Senever mechanism 69 and the gear 5 are arranged so that the transverse feeding means 8 intermittently feeds the number of pots in one horizontal row in response to the operation.
They are synchronized and interlocked with each other via 2.54 and the like.

As shown in FIG. 8, each seedling holder 63 is provided with a bent edge 63a only on one side in the width direction. Therefore, the area of this seedling holder 63 is larger than that of a seedling holder 63 having bent edges on both sides, and there is less risk of the seedling A being pinched between the seedling holders 63.

The planting means 9 has a planting tube 86 that can be raised and lowered, and when the tube is lowered, the mulch film 2 on the ridge 1 is cut by melting, and then holes are made and the seedlings A are planted.

In addition, for this planting, the means 9 is provided with a presser ring etc. which also serves as soil covering.

When transplanting to seedlings using this transplanter 3,
The seedling box 14 in which the seedlings A have been raised in the pot section 22 is loaded into the seedling box guide means 5 from above, and the various parts are operated while running while straddling the ridge 1 as shown in FIGS. 1 and 2. . As a result, the seedlings A in the seedling box 14 can be automatically planted one by one on the shoulders of the ridge 1 by the means 9. Therefore, by reciprocating, the seedlings A can be planted on both sides of the ridge 1 as shown in FIG. Seedlings can be planted individually on the shoulders.

During the transplanting operation, the seedling box feeding means 6 feeds the seedling boxes 14 downward one pitch at a time, and after the feeding operation, the seedling pushing means 67 moves the seedlings in the pot portions 22 in a horizontal row of the seedling box 14 to the forward horizontal feeding means 8. Push upwards. Then, for each operation of the seedling box feeding means 6, the horizontal feeding means 8 is intermittently operated seven times, and each image A on the seedling holder 63 is sequentially planted in the tube 86. supply to.

In this case, according to the present embodiment which employs the seedling box 14 described above, both left and right ends 22b of the seedling box 14 are connected to the upper surface 22c of the seedling box main body 22a. Since it is formed to be displaced toward the bottom surface of the pot part 22 from the upper surface 22c so that it does not protrude further than the upper surface 22c, the seedlings A sent to the horizontal feeding means 8 (seedling receiver 63) are not caused to fall on it due to mechanical vibration or the like. Even if the position shifts in the opposite extrusion direction,
It is possible to reliably feed the seedlings 14 horizontally without hitting the feeding claws 23, etc., and the distance between the seedling box body 22a and the seedling receiver 63 can be narrowed as much as possible, which in turn improves the ability of the seedlings to receive the seedlings. Transfer to the tool 63 can be performed more reliably.

Further, in this embodiment, when the drive shaft 53 rotates in the direction of the arrow a, the seedling box feed cam 49 first acts on the cam roller 39, and the feed arm 37 moves upward (in the direction of the arrow b) around the rotating shaft 26. As it rotates, the claw portion 33 of the feed claw 29 engages with the feed hole 23 of the seedling box 14. Then, when the cam 49 is removed from the cam roller 39, the feed arm 37 is returned by the spring 38, so the feed pawl 29 descends, and the pawl portion 33 that engages with the feed hole 23 pulls the seedling box 14 downward. Therefore, the seedling box 14 is sent downward by one pitch along the seedling box guide means 5. Also, when the feeding claw 29 is lowered, the regulating claw 31
enters the feed hole 23, but when the feed claw 29 descends to the lower limit, it comes into contact with the stopper 35 and is locked, so the regulating claw 31 engages with the upper edge of the feed hole 23. Therefore, after the seedling box 14 is fed, the feeding claw 29 and the regulating claw 31 engage with the feeding hole 23 from above and below, so that the seedling box 14 is positioned at the feeding position, and the weight of the soil on the seedlings in the pot part 22 is reduced. , or even if mechanical vibration is applied to the seedling box 14, it will not shift up and down, and each pot part 22 can be reliably aligned with the push rod 40.

When the seedling box feeding operation is finished, the seedling push-out cam 50 acts on the cam roller 47, and the push-out arm 44 rotates around the rotation shaft 43 (in the direction of arrow C), so that the push-out frame is moved through the opening 7 and 45. 41 is pushed forward on the guide rod 42, and each pushing rod 40 pushes the seedling A in the pot part 22 of the seedling box 14 from the upper side of the floor and pushes it forward. Therefore, the seedlings A in a horizontal row are simultaneously pushed out and placed on each seedling holder 63 of the traversing means 8. After extrusion, the extrusion rod 40 is returned by the spring 46.

On the other hand, the horizontal feeding means 8 includes the seedling box feeding means 6 and the pushing means 7.
The means 9 operates intermittently seven times each time these operate once, and the seedlings A on the seedling holder 63 are sequentially planted.
supply to. That is, in the Geneva mechanism 69, the Geneva gear 71 rotates the seedling holder 63 for one rotation of the Geneva wheel 73.
On the gears 52 and 54 side, the large diameter gear 52 rotates once for every 3.5 revolutions of the small diameter gear 54, so the seedling box feeding means 6 and the seedling pushing means 7 are rotated once. On the other hand, the transverse feeding means 8 operates intermittently seven times, one pitch at a time, to feed the seedlings A one after another.

Then, the empty seedling box 14 in which all the seedlings A have been pushed out is discharged diagonally downward from the lower end of the seedling box guiding means 5.

(Effects of the Invention) As described above, according to the present invention, the seedlings A placed on the seedling holder 63 can be reliably fed, and the feeding claws 2 are provided between the seedling box main body 22a and the seedling holder 63. Since the seedlings etc. do not protrude, they can be brought as close together as possible, and the transfer of the seedlings to the transverse feeding means 8 can be performed more reliably.

[Brief explanation of the drawing]

Figures 1 to 12 show an embodiment of the present invention; Figure 1 is a cross-sectional view when the seedling box is installed, Figure 2 is a partial plan view of the seedling box, and Figure 3 is the main parts of the transplanter. 4 and 5 are side sectional views, FIG. 6 is a partially cutaway front view of the same, FIG. 7 is a front view of the traversing means, and FIG. Figure 9 is a configuration diagram of the transmission system, Figure 10 is a cross-sectional view of the planting state, Figure 11 is a plan view of the transplanter, Figure 12 is a side view of the same, and Figure 13 is a conventional seedling box when installed. The sectional view and FIG. 14 are partial plan views of the same seedling box. 3... Transplanting machine, 5... Seedling box guide means, 6... Seedling box feeding means, 14... Seedling box, 16... Guide side plate, 22
... Pot part, 22a ... Seedling box body, 22b ...
Both left and right ends, 22c...top surface, 23...spring hole, 2
9... Spray hole.

Claims (1)

[Claims] (1) A seedling box main body (22a) consisting of a large number of pot parts (22) arranged vertically and horizontally in a plan view, and a guide side plate (16) provided on both sides of the seedling box guide means (5) of the transplanter (3). Both left and right end portions (22b) that engage, the left and right end portions (22b)
, the feeding claw (29) of the seedling box feeding means (6) of the transplanter (3)
) is provided with feed holes (23) at regular intervals for engagement from the bottom side of the pot portion (22). The tip of the feed claw (29) when engaged is the seedling box body (22a)
The top surface (22c) of the
2c) A seedling box for potted seedlings, characterized in that the pot portion (22) is formed to be displaced toward the bottom side of the pot portion (22).