JP2012249555A - Seedling receiving device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent breakage of a seedling box by preventing curving of the seedling box during pushing of a potted seedling.SOLUTION: The seedling receiving device 1 includes: a seedling receiving arm attachment seat 3 provided on a device body 2; a seedling receiving arm 4 having a base end vertically rotatably supported on the attachment seat 3 through an arm support shaft 4a; a seedling receiving base 5 provided at a tip of the seedling receiving arm 4 and having a seedling receiving groove 5a; and a seedling receiver driving mechanism 6 for reciprocating and rotating the seedling receiving base 5 between a seedling receiving position and a seedling delivery position, in which a potted seedling N pushed by a pushing rod inserted through a crack portion formed on the bottom surface of a potted seedling chamber 11 from the reverse side of the seedling box 10 is received in the seedling receiving groove opposed to an opening of the potted seedling chamber 11 on the surface side of the seedling box 10 at the seedling receiving position. Only when the potted seedling N is pushed out by the pushing rod at the seedling receiving position, the seedling receiving base 5 is pressed onto the surface side of the seedling box 10.

Description

  The present invention relates to a seedling receiving apparatus that receives a pot seedling pushed out from a seedling box by an extrusion rod at a seedling receiving position and moves it to a lower seedling passing position.

  As a conventional example, a seedling receiving arm of a transplanter described in Patent Document 1 is illustrated.

  The seedling box 10 used by being mounted on this type of transplanter has support portions 10a and 10a which are made of a flexible material so as to be bent as shown in FIG. In addition, a support portion 10b extending in the vertical direction is provided in the middle, and the pot nurseries 11 are arranged in a grid pattern between the support portions in the vertical and horizontal directions. The support portions 10a and 10a are provided with feed holes 12 that feed in the vertical direction at positions aligned with the pot seedling chambers 11 aligned in a horizontal row. A Y-shaped crack 13 is provided on the bottom surface of the pot nursery room 11 so as to be freely opened and closed. In the crack portion 13 of this example, three straight cuts having the same length from the center of the bottom surface of the pot nursery room 11 are provided radially at equal angles.

  As shown in FIG. 7, the conventional seedling receiving arm 110 is interlocked and connected to a crank 111 that is rotationally driven by a power transmission mechanism in a planting transmission case 146 via an interlocking member 113. The position is freely changeable between the seedling receiving position indicated by the solid line and the seedling passing position indicated by the phantom line in the same figure, and the pot seedling N pushed out from the pot seedling chamber 11 at the seedling receiving position is received. The seedling receiving groove 110a passes through the position of the protruding member 112 with the pot portion Na of the pot seedling N first, when the seedling receiving groove 110a rotates downward while reversing the pot seedling N in the reverse direction, Thereby, the pot seedling N is pushed out from the seedling receiving groove 110a, and the pot seedling N is configured to drop onto the lower seedling conveying device 106 in a lateral posture.

JP 2005-278476 A

  By the way, in this kind of seedling receiving arm 110, the clearance S between the tip and the seedling box 10 is prevented so that the tip does not interfere with the seedling box 10 supported by the seedling box guide part 104 during rotation. Is provided. For this reason, when the extrusion basket 106 is advanced from behind the bottom surface of the pot seedling chambers 11 aligned in a horizontal row, for example, as shown in FIG. 8, the flexible seedling box 10 is placed between the support portions a, b, a. Is deformed by being pressed against the tip of the seedling receiving arm 110, and the pot seedling chamber 11 is moved sideways so that the interval between the inclined bottom surfaces becomes narrow. At this time, the inclination of the pot seedling chamber 11 is maximized at the closest part to the support parts a, b, a supported by the seedling box guide part 104, and decreases as the distance from the support part increases. Thereby, as shown to the figure, the bottom face of each pot seedling room 11 near support part a, b, a will be in the state which moved to this anti-support part side. For this reason, since the extrusion basket 106 presses the position which shifted | deviated from the crack part 13 in the bottom face center with respect to these pot seedling rooms 11, there exists a subject that it is easy to damage.

In order to solve the above-mentioned problem, the seedling receiving device of the present invention comprises:
A seedling receiving arm mounting seat provided in the apparatus main body, a seedling receiving arm whose base end portion is supported by the seedling receiving arm mounting seat via an arm support shaft so as to be rotatable up and down, and a distal end portion of the seedling receiving arm The seedling receiving base having a seedling receiving groove that can hold the pot portion of the pot seedling, and the seedling receiving arm and the seedling receiving base are reciprocally rotated between a seedling receiving position and a seedling passing position below the seedling receiving position. A seedling receiving drive mechanism
A pot seedling pushed out by an extrusion punch inserted through a crack formed in the bottom surface of the pot seedling chamber from the back side of a seedling box in which a large number of pot seedling chambers are formed vertically and horizontally is placed in the seedling receiving position. A seedling receiving device configured to receive the seedling receiving groove facing the opening of the pot seedling chamber on the front side of the box,
At the seedling receiving position, the seedling receiving base is configured to be pressed against the front side of the seedling box only when the pot seedling is pushed out by the push rod.

  According to this configuration, when the seedling support is in the seedling receiving position, by pressing the seedling support against the front side of the seedling box, the clearance between the seedling support and the seedling box is eliminated, It is possible to prevent the seedling box from being bent while the pot seedling is being pushed out, thereby preventing the seedling box from being damaged. On the other hand, when the seedling receiving base is located at a position other than the seedling receiving position, a gap can be provided between the seedling receiving base and the seedling box so that the seedling receiving base and the seedling box do not interfere with each other. .

Examples of the seedling receiving device include the following modes.
(1) The seedling receiving arm mounting seat is supported such that the lower side of the arm support shaft is rotatable with respect to the apparatus body via the mounting seat support shaft.
The aspect provided with the attachment seat drive mechanism which rotates the said seed receiving arm attachment seat to the said push rod side only when the said seedling receiving stand exists in the said seedling receiving position.
(2) The seedling receiving arm mounting seat is supported so as to be slidable in the axial length direction of the extrusion rod with respect to the apparatus main body,
A mode provided with a mounting seat drive mechanism for sliding the seedling receiving arm mounting seat to the pushing rod side only when the seedling receiving stand is at the seedling receiving position.

  According to these configurations, the seedling receiving apparatus can be realized with a simple configuration at a low cost.

  The seedling receiving apparatus according to the present invention has an excellent effect of preventing the seedling box from being bent while the pot seedling is being pushed out, thereby preventing the seedling box from being damaged.

1 is a side view of a transplanter equipped with a seedling receiving apparatus according to an embodiment of the present invention. It is a perspective view which shows the right side surface, back surface, and bottom surface of the seedling receiving device. It is a perspective view which shows the left side surface, front, and plane of the seedling receiver. It is a side view which shows operation | movement of the seedling receiving apparatus in steps (stage (a)-(c)). It is a side view which shows operation | movement of the seedling receiving apparatus in steps (stage (d)-(f)). It is a side view which shows operation | movement of the seedling receiving apparatus in steps (stage (g)-(i)). It is a side view which shows operation | movement of the seedling receiving apparatus in steps (stage (j)-(k)). It is a figure which shows the principal part (a pot seedling is abbreviate | omitting illustration) of the seedling receiving apparatus, (a) is a plane sectional view of the apparatus, (b) is a pot seedling in the middle of pushing out the pot seedling in (a) It is the figure which looked at the chamber from the front side of the seedling box. It is a figure which shows a seedling box, (a) is a top view, (b) is a b arrow view of (a), (c) is a c arrow view of (a). It is a side schematic block diagram of the seedling receiving device in the conventional transplanter. It is a figure which shows the state (pot seedling is not shown in figure) in operation of the conventional seedling receiving device of this type, (a) is a cross-sectional view of the same device, (b) is an extruding pot seedling in (a) It is the figure which looked at the pot seedling room in the middle of being seen from the front side of the seedling box.

  FIGS. 1-5 has shown the seedling receiver 1 of the transplanter 20 of one Embodiment which actualized this invention. As shown in FIG. 1, the transplanter 20 of the present example includes a traveling vehicle body 22 that is supported by the front and rear traveling wheels 21, a seedling placing table 23 on which the seedling box 10 can be placed, and a seedling box guide unit. A seedling extruding device 25 for extruding the predetermined number of pot seedlings N in a horizontal row from the seedling box 10 supported by 24 by a predetermined number (14 in this example) of extrusion troughs 25a, and the seedling extruding device 25 A seedling receiving device 1 including a seedling receiving stand 5 for receiving the pot seedling N and supplying it to the seedling conveying device 26, a seedling conveying device 26 for conveying the supplied pot seedling N one by one, and a planting groove in the field , A planting device 28 that receives the pot seedling N that has been transported by the seedling transporting device 26 and plantes it in the planting groove behind the trenching device 27, and the rear of the planting device 28 A pair of left and right earthen wheels 29 for refilling the planting groove It is provided. In each figure, the arrow F indicates the front side of the aircraft.

  The seedling box 10 used by being mounted on the transplanter 20 of the present example is the same as that shown in FIG. 6 described in the background art, and therefore redundant description is omitted.

  As shown in FIGS. 2 to 5, the seedling receiving apparatus 1 includes an apparatus main body 2, a seedling receiving arm mounting seat 3 provided in the apparatus main body 2, and a base end portion of the seedling receiving arm mounting seat 3. A seedling receiving arm 4 supported so as to be vertically rotatable via a support shaft 4a, and a seedling receiving groove 5a provided at the tip of the seedling receiving arm 4 and capable of holding the pot portion Na of the pot seedling N Between the seedling receiving stand 5 and the seedling receiving position (see FIG. 4-1 (c)) and the seedling jumping position (see FIG. 4-3 (h)) as a seedling passing position below the seedling receiving arm 4 And a seedling receiving drive mechanism 6 for reciprocatingly rotating the seedling receiving stand 5 and a jumping member 7 for jumping out the pot seedling N from the seedling receiving stand 5 at the seedling jumping position.

  The seedling receiving drive mechanism 6 includes a crank 32 that is rotationally driven around a crankshaft 31 by a power transmission mechanism (not shown) in the apparatus main body 2, and a link 33 that connects the crank 32 and the seedling receiving arm 4. The position of the seedling receiving base 5 attached to the seedling receiving arm 4 can be changed between the seedling receiving position and the seedling jumping position by the rotation of the crank 32. By this seedling receiving drive mechanism 6, the seedling receiving stand 5 receives the pot seedling N pushed out from the pot seedling chamber 11 at the seedling receiving position, and then rotates downward while reversing the pot seedling N in the reverse direction. When reaching the seedling jumping position, the seedling receiving groove 5a passes through the position of the popping member 7 with the pot portion Na of the pot seedling N first. At this time, the pot seedling N is pushed out from the seedling receiving groove 5a by the jumping member 7.

  In this example, the seed receiving arm mounting seat 3 is supported such that the lower side of the arm support shaft 4a is rotatably supported by the apparatus main body 2 via the mounting seat support shaft 3a. Only when in the seedling receiving position, there is provided a mounting seat drive mechanism 8 for rotating the seedling receiving arm mounting seat 3 toward the pushing rod side.

  The mounting seat drive mechanism 8 includes a plate cam 35 as a cam that is rotationally driven by the crankshaft 31, and a follower 36 that protrudes from the seedling receiving arm mounting seat 3. In this example, the follower 36 is urged by a spring 37 (see FIG. 3) as urging means so that a roller 36a attached to the tip of the follower 36 comes into contact with the peripheral edge of the plate cam 35. Is rotated, the seedling receiving arm mounting seat 3 swings about the mounting seat support shaft 3a via the follower 36. This swing is set so that the seedling receiving device 1 presses the seedling receiving stand 5 against the front side of the seedling box 10 only when the pot seedling N is pushed out by the push rod 25a at the seedling receiving position. Yes.

Next, operation | movement of the seedling receiver 1 of this example is demonstrated in order, referring FIG. 4 (FIGS. 4-1 to FIGS. 4-4).
(1) The seedling receiving platform 5 driven by the seedling receiving driving mechanism 6 is raised (FIG. 4A).
(2) When the seedling receiving platform 5 reaches the top dead center, the seedling receiving arm mounting seat 3 swings due to the action of the mounting seat drive mechanism 8 and the seedling receiving platform 5 moves toward the seedling box 10 (FIG. 4B). )).
(3) The pot seedling N pushed out from the back side of the seedling box 10 by the extrusion rod 25a penetrating through the crack portion 13 is opposed to the opening of the pot seedling chamber 11 on the front side of the seedling box 10 at the seedling receiving position. Receive in the seedling receiving groove 5a. At this time, until the pot seedling N is pushed out into the seedling receiving groove 5a, the seedling receiving base 5 continues to push the seedling box 10 by the action of the mounting seat drive mechanism 8 (FIGS. 4C and 5).
(4) When the pot seedling N is pushed out to the seedling receiving base 5, the seedling receiving arm mounting seat 3 swings in the reverse direction by the action of the mounting seat drive mechanism 8, and the seedling receiving base 5 moves away from the seedling box 10. It starts to move (FIG. 4 (d)).
(5) When the seedling receiving base 5 is lowered, the seedling receiving base 5 is further moved away from the seedling box 10 by the action of the mounting seat drive mechanism 8, and a gap is formed between the seedling receiving base 5 and the seedling box 10. S can be formed (FIG. 4E).
(6) After that, the seedling receiving base 5 rotates downward while inverting the pot seedling N in the reverse direction, and when the seedling receiving groove 5a reaches the seedling jumping position, the seedling receiving groove 5a leads the pot portion Na of the pot seedling N first. Thus, the pot seedling N is pushed out from the seedling receiving groove 5a. In addition, until the seedling receiving stand 5 reaches the top dead center again, the seedling receiving arm mounting seat 3 does not move (FIGS. 4 (f) to 4 (k)).

  According to the seedling receiving apparatus 1 of the present example configured as described above, when the seedling receiving base 5 is in the seedling receiving position, as shown in FIGS. 4C and 5, the seedling receiving base 5 Is pressed against the front side of the seedling box 10, the gap S between the seedling receiving base 5 and the seedling box 10 is eliminated, and the bending of the seedling box 10 while the pot seedling N is being pushed out can be prevented. On the other hand, when the seedling receiving base 5 is located at a position other than the seedling receiving position, a gap S is provided between the seedling receiving base 5 and the seedling box 10 so that the seedling receiving base 5 and the seedling box 10 do not interfere with each other. Can be made.

In addition, this invention is not limited to the said embodiment, For example, it can also be suitably changed and embodied as follows, for example in the range which does not deviate from the meaning of invention.
(1) Adopting another cam mechanism such as a groove cam as the mounting seat drive mechanism 8.
(2) In the above-described embodiment, “the seed receiving arm mounting seat 3 is supported such that the lower side of the arm supporting shaft 4a is rotatably supported by the apparatus main body 2 via the mounting seat supporting shaft 3a. Instead of the aspect including the mounting seat drive mechanism 8 for rotating the seedling receiving arm mounting seat 3 to the pushing rod side only when the seedling receiving stand 5 is in the seedling receiving position, the “seedling receiving arm mounting seat 3 is The apparatus body 2 is supported so as to be slidable in the axial length direction of the push rod 25a, and the seedling receiving arm mounting seat 3 is placed on the push rod side only when the seedling receiving stand 5 is in the seedling receiving position. A mode with a mounting seat drive mechanism that is slid to "."

DESCRIPTION OF SYMBOLS 1 Seedling receiving apparatus 2 Apparatus main body 3 Arm mounting seat 3a Mounting seat support shaft 4 Seedling receiving arm 4a Arm support shaft 5 Seedling receiving stand 5a Seedling receiving groove 6 Seedling receiving drive mechanism 7 Bounce member 8 Mounting seat drive mechanism 10 Seedling box 10a Supporting part 10b Supporting part 11 Pot seedling room 12 Feeding hole 13 Cracking part 20 Transplanting machine 21 Traveling wheel 22 Traveling vehicle body 23 Seedling stage 25 Seedling extruding device 25a Extruding shear 26 Seedling transporting device 27 Groove excavator 28 Planting device 29 Wheel 31 Crankshaft 32 Crank 33 Link 35 Plate cam 36 Follower 36a Roller 37 Spring F Front of machine N Pot seedling Na Pot part Nb Stem and leaf part S Gap

Claims (3)

A seedling receiving arm mounting seat provided in the apparatus main body, a seedling receiving arm whose base end portion is supported by the seedling receiving arm mounting seat via an arm support shaft so as to be rotatable up and down, and a distal end portion of the seedling receiving arm The seedling receiving base having a seedling receiving groove that can hold the pot portion of the pot seedling, and the seedling receiving arm and the seedling receiving base are reciprocally rotated between a seedling receiving position and a seedling passing position below the seedling receiving position. A seedling receiving drive mechanism
A pot seedling pushed out by an extrusion punch inserted through a crack formed in the bottom surface of the pot seedling chamber from the back side of a seedling box in which a large number of pot seedling chambers are formed vertically and horizontally is placed in the seedling receiving position. A seedling receiving device configured to receive the seedling receiving groove facing the opening of the pot seedling chamber on the front side of the box,
A seedling receiving apparatus configured to press the seedling receiving table against the front side of the seedling box only when the pot seedling is pushed out by the push rod at the seedling receiving position. The seedling receiving arm mounting seat, the lower side of the arm support shaft is supported rotatably with respect to the apparatus body via the mounting seat support shaft,
The seedling receiving apparatus according to claim 1, further comprising an attachment seat driving mechanism that rotates the seedling receiving arm attachment seat toward the pushing rod only when the seedling receiving stand is at the seedling receiving position. The seedling receiving arm mounting seat is supported so as to be slidable in the axial length direction of the pusher with respect to the apparatus main body,
The seedling receiving apparatus according to claim 1, further comprising an attachment seat drive mechanism that slides the seedling receiving arm attachment seat toward the pushing rod only when the seedling receiving base is in the seedling receiving position.

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