JP2528731Y2 - Nursery tray - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tray for raising seedlings, and more particularly to a tray for raising seedlings in which a plurality of recesses are formed in a flat sheet, and each of the recesses is filled with cultivation soil for raising seedlings.

[0002]

2. Description of the Related Art To raise seedlings of various plants, trays for raising seedlings have been conventionally used. This seedling raising tray uses a large sheet made of a polymer material, and a plurality of recesses 2 are formed in this sheet by a method of pressure forming or vacuum forming as shown in FIGS. A drain hole 4 is formed in the bottom surface 3 of the recess 2.

[0003] In such a seedling raising tray, the concavities 2 are filled with cultivation soil, sowed and germinated to grow seedlings.

[0004] In particular, the following functions are required for a seedling raising tray for producing plug seedlings. That is, in order to enable the filling of the recesses 2 with the cultivation soil and the mechanization of the seeding, the recesses 2 formed in the tray must maintain a predetermined accuracy. Further, the concave portion 2 needs to have a shape that improves the germination rate and the rooting rate. Furthermore, it is necessary that the roots are not entangled so that the seedlings can be easily transplanted.

[0005]

[Problems to be Solved by the Invention] Conventional seedling raising trays are designed with emphasis on being suitable for the above-mentioned filling of soil and mechanization of sowing, so that the germination rate and the rooting rate are not always good. Furthermore, it had the disadvantage that the roots were easily entangled during transplantation.

In particular, as shown in FIG. 8, since a drain hole 4 is formed in the flat bottom surface 3 of the concave portion 2,
When such a tray is placed on a flat place, the bottom hole 4 is blocked, and there is a drawback that drainage is poor. If drainage from the drain hole 4 is poor, root rot due to poor drainage is likely to occur. In addition, since the root is hard to contact with air, the root comes out from the drain hole 4 at the bottom, and the seedling does not come off at the time of transplantation, or the root is forcibly cut and hurt.

Further, according to the conventional tray for raising seedling in which the drainage hole 4 is formed in the flat bottom surface 3, there is a disadvantage that the rooting rate is deteriorated. In addition, rooting was not uniform and could not be grown into healthy seedlings. In addition, such a tray has a defect that the outer peripheral portion of the sheet 1 remains flat, the strength is insufficient, and the tray that contains the contents is bent when held by hand.

The present invention has been made in view of the above problems, and provides a tray for raising seedlings in which drainage and water retention are appropriately performed, and more preferably the necessary strength is provided. The purpose is to do so.

[0009]

According to the present invention, there is provided a seedling raising tray in which a plurality of recesses are formed in a flat sheet, and each of the recesses is filled with cultivation soil for raising seedlings.
A plurality of supporting projections are formed at the bottom of the recess so as to project downward, and a drain hole is formed in the middle of the supporting projection.

[0010]

Accordingly, the bottom of the recess is not a flat surface but a surface having irregularities due to the plurality of supporting projections projecting downward.
In addition, since a drainage hole is formed in the intermediate portion of the supporting projection, the drainage hole appropriately maintains drainage and water retention.

[0011]

1 to 4 show a tray for raising seedlings according to a first embodiment of the present invention, in which a sheet 10 made of a polymer material is used. Such a sheet 10 is placed on a mold having a predetermined shape, and a plurality of recesses 11 as shown in FIGS. 1 and 2 are formed by a vacuum forming or pressure forming method. The tray 10 of this embodiment has 6 × 4 = 24 recesses 1
1 is formed. These recesses 11 are connected to each other by a flat surface constituting the sheet 10.

The structure of the bottom of each recess 11 will be described. As shown in FIGS.
The individual supporting projections 12 are formed so as to project downward. In addition, a drain hole 13 is formed at an intermediate portion of these supporting projections 12. The drain hole 13 is formed from the inclined surface of the supporting projection 12 to the bottom. That is, the supporting projection 12 has a truncated conical shape projecting downward, and the drain hole 13 is formed at an intermediate position between the projection 12 and the peripheral surface of the projection 12. .

This tray has an inclined surface 1 on its outer peripheral side.
4, a flange 15, an inclined surface 16, and a flange 17 are sequentially provided to generate a required strength.

In such a seedling raising tray, each recess 11 is filled with cultivation soil, seeded, and germinated seedlings are raised to produce plug seedlings. The operations of filling and sowing the cultivated soil are automated by a machine.

As described above, the seedling raising tray according to the present embodiment is provided with four truncated cone-shaped supporting projections 12 at the bottom of the recess 11 so as to project downward. I try to support. In addition, a drain hole 13 is formed in the middle of the four protrusions 12 to promote the flow of drain water and air.

In particular, by forming the drain hole 13 in the middle of the four supporting projections 12, even if the tray is placed on a flat place, the drainage and water retention can be maintained at an appropriate level. , Root rot is prevented. Further, since the roots come into contact with the air through the drain holes 13, the roots do not easily come out of the drain holes 13, and the root entanglement inside the tray is improved.
Therefore, when transplanting the seedlings grown in the recesses 11 of the tray, the removal of the seedlings from the recesses 11 becomes easy, the roots do not hurt, and the survival rate is improved. In addition, the above-mentioned supporting protrusion 12
Because of its own shock absorption, it acts as a cushion during transportation and protects the seedlings.

A slant surface 14, a flange 15, a slant surface 16, and a flange 17 are formed on the outer peripheral side of the tray. Therefore, the strength can be improved without changing the thickness of the sheet 10 as a raw material. As a result, the seedling tray is cut out.

FIGS. 5 and 6 show a tray for raising seedlings according to a second embodiment. The tray has a pair of horizontally long supporting projections 12 formed at the bottom of each recess 11. Things. A drain hole 13 having a circular opening is formed between the projections 12. The drainage hole 13 is formed so as to extend from the peripheral surface of the protrusion 12 to the bottom, so that drainage and water retention are appropriately maintained. Therefore, according to such an embodiment, the same operation and effect as those of the above-described embodiment can be obtained.

[0019]

As described above, according to the present invention, a plurality of supporting projections are formed so as to project downward at the bottoms of a plurality of recesses of a flat sheet constituting a tray for raising seedlings. A drain hole is formed in the middle of the supporting projection. Therefore, the drainage property and the water retention property are properly maintained, so that not only the root is not easily rotted but also the root is hardly out of the drain hole, and the root is entangled inside the tray. This makes it easy to remove the seedlings from the tray when transplanting them,
The roots do not hurt and the survival rate becomes good.

[Brief description of the drawings]

FIG. 1 is a plan view of a tray for raising seedlings according to a first embodiment of the present invention.

FIG. 2 is a vertical sectional view of the tray for raising seedlings.

FIG. 3 is an enlarged plan view of a main part of a tray for raising seedlings.

FIG. 4 is a longitudinal sectional view of the main part.

FIG. 5 is a plan view of a main part of a seedling raising tray according to a second embodiment.

FIG. 6 is a vertical sectional view of the main part.

FIG. 7 is a plan view of a conventional tray for raising seedlings.

FIG. 8 is a vertical sectional view of the tray for raising seedlings.

[Explanation of symbols]

 REFERENCE SIGNS LIST 10 sheet 11 concave portion 12 supporting projection 13 drain hole 14 inclined surface 15 flange 16 inclined surface 17 flange

Claims (1)

(57) [Scope of request for utility model registration] 1. A seedling raising tray in which a plurality of recesses are formed in a flat sheet and each of the recesses is filled with cultivation soil for raising seedlings, wherein a plurality of supporters are provided so as to project downward from the bottom of the recesses. A seedling raising tray, wherein a drainage hole is formed in the middle of the supporting projection.