JP4780562B2 - Transplanter seedling stand - Google Patents

Description

  The present invention relates to a seedling receiving base for a transplanter having a seedling receiving groove for holding the outer peripheral surface of a pot-shaped root portion in a seedling and used for changing the posture of the seedling held in the seedling receiving groove. Is.

  As a seedling receiving base of a conventional transplanter, a seedling receiver equipped in a pot seedling supporting device in a rice transplanter described in Patent Document 1 is exemplified. In this pot seedling support device, the pot seedling extruded from the seedling frame set on the seedling mount of the rice transplanter is received in the seedling receiving groove of the seedling receiver provided in the seedling receiving platform, and then transferred to the seedling planting device. It is supposed to be. During this transfer, the seedling receiver is rotated 180 degrees, but the seedling receiving groove is formed slightly smaller than the root to prevent the root part of the pot seedling pushed into the seedling receiving groove from falling off. In order to further prevent this dropout, there is a seedling receiver 80 in which a pair of protrusions 82 extending in the groove length direction of the seedling receiving groove 81 are formed on the inner peripheral surface of the seedling receiving groove 81 as shown in FIG. . Both groove edges extending in the groove length direction of the seedling receiving groove 81 are arranged so that the peripheral surface of the root Pa is opened at a central angle A of about 90 degrees. In order to be able to effectively lock the root part Pa of the pot seedling with the pair of protrusions 82, the pair of protrusions 82 is approximately the center axis of the root part Pa held in the seedling receiving groove 81. It is provided to bite into a symmetrical position. When the root portion Pa of the pot seedling is pushed into the seedling receiving groove 81, the protrusion 82 bites into the root portion Pa in a wedge shape and is locked. This kind of seedling receiver 80 is for weight reduction (if it is lightweight, the power to move the seedling receiver 80 is small and the pot seedling can be handled delicately) and for cost reduction. A substantially entire portion including the seedling receiving grooves 81 and the protrusions 82 is formed of resin (that is, the main material of the seedling receiver 80 is resin).

JP 54-123430 A

  However, since the seedling roots Pa that are formed slightly smaller than the roots Pa are pressed into the seedlings Pa one after another, the protrusions 82 are particularly easily worn, and the resin is integrated with the resin. There is a problem that the formed seedling receiver 80 must be replaced periodically.

In order to solve the above problems, the seedling support of the transplanter of the present invention is:
It has a seedling receiving groove for holding a pot-shaped root part in the seedling, and is a seedling receiving stand for a transplanter used to change the posture of the seedling held in the seedling receiving groove,
The seedling receiving groove includes a groove main body that forms an inner peripheral surface that receives the outer peripheral surface of the root portion, and a pair of grooves that are detachably disposed on both edges of the groove main body that extend in the groove length direction. With an edge,
The pair of groove edges are arranged such that the peripheral surface of the root is opened at a central angle of about 60 to 140 degrees,
The groove edge portion has a protrusion that protrudes so as to bite into the outer peripheral surface of the root portion and extends in the groove length direction.

  According to this structure, when the said protrusion is worn out, the said groove edge part can be replaced | exchanged and the cost of the maintenance of a seedling receiving stand can be reduced.

In the seedling stand of the transplanter,
The said protrusion or the said groove edge part illustrates the aspect which consists of a material of the material excellent in abrasion resistance rather than the material of the main material of the said groove | channel main body.

  Although it does not specifically limit as a material of the said protrusion or the said groove edge part, When the main material of the said groove | channel main body is resin, it is set as metal or a ceramic.

  According to this structure, the said protrusion or the said groove edge part cannot wear easily, and the effort of the maintenance of a seedling receiving stand can be reduced. In addition, since only the protrusions or the groove edges are made of a material having excellent wear resistance (generally expensive and having a large specific gravity), it is lower than the entire seedling stand made of a material having excellent wear resistance. Cost and weight can be configured.

  According to the seedling stand of the transplanter of the present invention, there is an excellent effect that the cost for the maintenance can be reduced.

  FIGS. 1-5 has shown the transplanting machine provided with the seedling receiving stand 12 of one Embodiment which actualized this invention. As shown in FIGS. 1 and 2, the transplanter of the present example is provided with a machine body 1 that is supported by left and right traveling wheels (not shown), and an upper part of the machine body 1. A seedling stand 3 that can be placed freely, and a seedling extraction device 4 having a seedling receiving base 12 that takes out seedlings P (pot seedlings in this example) such as vegetables and flowers from the pot seedling box 10 side by side. The seedling transport device 5 that transports the seedlings P one by one, the groove excavator 8 that forms a planting groove in the field, and the seedling P that has been transported by the seedling transport device 5 is received and behind the trench excavator 8. A planting device 6 for planting in the planting groove and a pair of left and right earthen wheels 7 for backfilling the planting groove behind the planting device 6 are provided. The pot seedling box 10 is a flexible one in which a large number of pot seedling rooms 10a are connected in series. In each figure, the arrow F indicates the front side of the aircraft.

  In the seedling extraction device 4, as shown in FIG. 1, the pot seedling box 10 is bent in the seedling table 3 and is intermittently fed one row at a time, and the extrusion basket provided behind the seedling table 3 at a predetermined position. 11 rushes into the pot seedling chamber 10a in a horizontal row of the pot seedling box 10 from the bottom, pushes the seedling P forward, and pushes its root portion Pa into the seedling receiving groove 13 of the seedling receiving base 12 provided forward. Here, as shown in FIG. 3 and FIG. 4, a protrusion 14 extending in the pushing direction is provided in the seedling receiving groove 13, so that the protrusion 14 is formed on the outer peripheral surface of the root Pa of the seedling P. It bites in and holds the seedling P in the seedling receiving groove 13. Subsequently, the seedling receiving base 12 that has received the seedling P is rotated downward while inverting the seedling P in the reverse direction. At this time, the seedling receiving groove 13 of the jumping member 18 of the root portion Pa of the seedling P is first reached. Go through position. As a result, the seedling P is pushed out of the seedling receiving groove 13 and falls onto the conveying belt 20 of the lower seedling conveying device 5.

  A seedling receiving groove 13 is arranged in the seedling receiving stand 12 so as to correspond to each pot seedling chamber 10 a in a horizontal row of the pot seedling box 10. The seedling receiving groove 13 can be attached / detached with screws 17 to the groove main body 16 that forms the inner peripheral surface that receives the outer peripheral surface of the root Pa of the seedling P, and both edges of the groove main body 16 on the groove opening side that extends in the groove length direction. And a pair of groove edges 15 disposed on the surface. In the seedling receiving groove 13 of this example, the groove body 16 is made of resin as a main material, and the groove edge portion 15 is made of a metal (for example, stainless steel) having a material superior in wear resistance than the resin. Yes.

  The seedling receiving groove 13 is formed so as to hold the outer peripheral surface of the root Pa formed in a pot shape, and both groove edges extending in the groove length direction in the seedling receiving groove 13 are not particularly limited, It is preferable that the peripheral surface of the root Pa is disposed so as to be opened at a central angle A of about 60 to 140 degrees. The reason why the preferable upper limit of the central angle A is about 140 degrees is that when it exceeds about 140 degrees, it is difficult to firmly hold the root Pa in the seedling receiving groove 13. In addition, the preferable lower limit of the central angle A is about 60 degrees. If the central angle A is less than about 60 degrees, both protrusions 14 are too biased to a part of the outer peripheral surface of the root Pa, and the locking effect of the root Pa is obtained. It is because it falls.

  The groove edge 15 has a protrusion 14 that protrudes so as to bite into the outer peripheral surface of the root Pa and extends in the groove length direction. In the protrusion 14 of this example, the edge part in the groove edge part 15 formed in plate shape is utilized. The groove edge 15 in this example is formed by integrating adjacent groove edges in the adjacent seedling receiving grooves 13, and as shown in FIG. 4, the width becomes wider toward the side where the root Pa of the seedling P is pushed. It is formed in a narrow shape (in this example, the shape of the hull in plan view). According to this shape, as the root portion Pa of the seedling P is pushed into the seedling receiving groove 13, the protrusion 14 gradually bites into the outer peripheral surface of the root portion Pa, and an excessive force is applied to the root portion Pa. Can be prevented.

  In addition, in this example, as shown in FIG.3 and FIG.4, about the seedling receiving groove 13a of the both ends of the seedling receiving groove row | line | column arrangement | positioning direction in the seedling receiving stand 12, and a center part, it is metal at one groove edge. Although the groove edge 15 is disposed, a resin groove edge 19 including a resin protrusion 19 a is integrally formed on the groove body 16 at the other groove edge. In order to prevent a reduction in the locking effect of the root Pa due to wear of the resin protrusion 19a, for example, as shown in FIG. 5, metal groove edges 15 are disposed on both groove edges. The protrusion 14 of the groove edge 15 of one groove edge in the seedling receiving groove 13a is relatively larger than the protruding protrusion 14 of the seedling receiving groove 13 that protrudes into the seedling receiving groove 13 (deeply invaded into the root portion Pa). It is also possible to prevent the other resin groove edge 19 from being provided with a protrusion.

  According to the seedling receiving stand 12 of the transplanter of the present example configured as described above, the seedling receiving groove 13 that holds the pot-shaped root portion Pa in the seedling P is held and held in the seedling receiving groove 13. The seedling receiving groove 13 is used to change the posture of the seedling P. The seedling receiving groove 13 includes a groove main body 16 that forms an inner peripheral surface that receives the outer peripheral surface of the root portion Pa, and a groove length direction of the groove main body 16. A pair of groove edges 15 detachably disposed on both edges of the groove opening side extending to the groove opening 15, the groove edges 15 projecting so as to bite into the outer peripheral surface of the root Pa. It has a protrusion 14 extending in the direction. According to this configuration, when the protrusion 14 is worn, the groove edge 15 can be replaced, and the maintenance cost of the seedling receiving base 12 can be reduced.

  The groove edge 15 is made of a metal having a higher wear resistance than the main material (resin) of the groove body 16. According to this configuration, the groove edge portion 15 including the protrusion 14 is not easily worn, and the maintenance work of the seedling receiving base 12 can be reduced. Further, since only a material having excellent wear resistance (generally expensive and large specific gravity) is used for only the groove edge portion 15, the cost is lower than that in which the entire seedling receiving base 12 is made of a material having excellent wear resistance. And it can comprise lightweight.

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) Change the groove main body 16, the groove edge 19, and the protrusion 14 to those made of other materials. For example, the groove edge 19 may be made of ceramic.
(2) The shape and size of the groove main body 16, the groove edge portion 19, and the protrusion 14 are appropriately changed.

It is a sectional side view which shows the principal part of the upper part side of the transplanting machine provided with the seedling receiving base which concerns on one Embodiment which actualized this invention. It is a perspective view which shows the principal part of the lower part side of the transplanter. It is a figure which shows the seedling receiving stand of the transplanter, (a) is a front view, (b) is the bb sectional view taken on the line of (a). It is a top view which shows the seedling receiving stand. It is a front view which shows the example of a change of the seedling receiving stand. It is a front view which shows the seedling receiving stand of the conventional transplanter.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Airframe 3 Seedling stand 4 Seedling pick-up device 5 Seedling conveying device 12 Seed receiving stand 13 Seed receiving groove 14 ridge 15 Groove edge 16 Groove body 17 Screw 19 Resin groove edge 19a Resin ridge 20 Conveying belt P seedling Pa root

Claims (2)

It has a seedling receiving groove for holding a pot-shaped root part in the seedling, and is a seedling receiving stand for a transplanter used to change the posture of the seedling held in the seedling receiving groove,
The seedling receiving groove includes a groove main body that forms an inner peripheral surface that receives the outer peripheral surface of the root portion, and a pair of grooves that are detachably disposed on both edges of the groove main body that extend in the groove length direction. With an edge,
The pair of groove edges are arranged such that the peripheral surface of the root is opened at a central angle of about 60 to 140 degrees,
The said groove edge part is a seedling receiving stand of the transplanter which has the protrusion extended so that it might bite into the outer peripheral surface of the said root part, and extended in the said groove length direction. 2. The seedling support for a transplanter according to claim 1, wherein the protrusion or the groove edge portion is made of a material having a higher wear resistance than a material of a main material of the groove main body.

Images