JPS5912056Y2 - hydroponics - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an apparatus used for hydroponics of plants, and more particularly to a hydroponics device having a structure that can prevent roots from rotting due to excessive moisture depending on the growing state of the plants.

For hydroponics of plants, the applicant has proposed, for example, Japanese Patent Application No. 55-368 as a method that is not affected by the increase or decrease of water in the container.
In No. 69, he applied for a method of cultivating seeds by sowing them on a net floating on water with floats attached to the periphery.

The hydroponic device used to carry out this method consists of a ring-shaped float and a net covered with a net plate, and when the buoyancy of the float causes the hydroponic device to float on water, the net plate is suspended. It is set up so that it is located almost above the water surface, and the roots of plants that germinate on the net will extend into the water through the net and absorb nutrients from the water, but the net will absorb the moisture necessary for germination. In order to preserve the plant, it is placed just below the surface of the water, so its roots are immersed in water from the beginning and never come into contact with the air.

By the way, unlike aquatic plants, ordinary plants cannot take in oxygen from the water, so they need at least a part exposed to the air.

Taking the above points into consideration, the present invention provides a net plate that is raised above the water surface so that part of the roots are located above the water, so that oxygen can be absorbed from the part of the roots that are exposed to the air. The purpose is to

According to the present invention, this problem can be solved by having a float formed as a separate member from the net body, and having a large diameter circular hole in the center thereof that communicates vertically, and allowing the net body to be placed at an arbitrary height within the circular hole of the float. This is achieved by a structure in which the outer periphery of the periphery has a shape that tightly fits into the inner circumferential surface of the circular hole of the float so as to maintain the float.

This structure has the advantage that hair roots grow from the part of the plant's roots exposed to the air, allowing it to absorb as much oxygen from the air as necessary.

Therefore, uprooting of roots extending into the water can be avoided.

Embodiments of the present invention will be described in detail below with reference to the drawings.

In FIGS. 1 and 2, reference numeral 1 denotes a float, which is made of a single piece of hard plastic or resin as a ring-shaped hollow body with a large-diameter circular hole in the center.

Reference numeral 2 denotes a mesh body that is tightly fitted into this circular hole, and is made of a peripheral frame 3 made of hard plastic or resin and a mesh plate 4 made of resin with fine mesh.
It is made to look impressive.

The peripheral frame 3 has a rounded bulge on its outer peripheral surface to facilitate fitting into the circular hole of the float 1.

With the structure of the present invention as described above, the mesh body 2, which is normally fitted as shown in FIG.
Seeds are sown floating on the water surface as shown by the solid line in Figure 2, and when the roots have grown to a certain extent and have grown into the water, the net 2 is raised to an arbitrary height as shown by the chain line to remove the roots. part can be positioned above the water surface.

FIG. 3 shows a modification of FIG. 1, in which the mesh body 2
Three engaging elements 5, 5, 5 are protruded from the outer periphery of the peripheral frame 3, and these engaging elements are fitted into the receiving recesses provided on the edge of the circular hole of the float 1 to maintain the correct height. Although it is designed to be fixed,
This support recess has multiple sets of different depths, for example 6, 6
, 6 and 7, 7, 7, and by changing one of them, the height of the net body 2 relative to the float 1 can be changed.

FIG. 4 shows another modification of FIG. 1, in which a circular hole 8 is provided in the center of the mesh body 2 so that in addition to seeds, bulbs and the like can be strung up in this area.

Reference numeral 9 indicates a reinforcing rib, and other parts are designated by the same reference numerals as in FIG.

As described above, the present invention is capable of accelerating the growth of plants by raising the net 2 appropriately according to the growth of the roots, and preventing root rot due to excessive moisture.
Furthermore, since the float 1 and the net body 2 are separate bodies, it has the advantage of being easy to manufacture.

[Brief explanation of the drawing]

Fig. 1 is a plan view of the hydroponic device of the present invention, Fig. 2 is a vertical sectional view of the hydroponic device shown in Fig. 1, Fig. 3 is an exploded plan view showing another embodiment of the hydroponic device, and Fig. 4 is a plan view of the hydroponic device of the present invention. It is a top view which shows yet another modification. Symbols in the figure: 1... Float, 2... Net body, 3... Peripheral frame, 4... Net plate, 5... Engagement element, 6, 7... Support recess, 8... ... circular hole.

Claims (1)

[Claims for Utility Model Registration] 1. A net body 2 in which a circular float 1 and a surrounding frame 3 are covered with a net plate 4.
In a certain hydroponic device, which is set so that the net plate 4 is located almost above the water surface when the hydroponic device is floated on water due to the buoyancy of the float 1, a separate member from the net body 2 is used. A float 1 shaped as a float is provided with a large-diameter circular hole in its center that communicates vertically, and the outer periphery of the peripheral frame 3 is designed to hold the net body 2 at an arbitrary height within the circular hole of the float 1. 1. A hydroponic device characterized by having a shape that tightly fits into the inner peripheral surface of the circular hole of No. 1. 2. In the hydroponic device according to claim 1 of the utility model registration claim, a plurality of sets of support recesses 6, 6..., 7, 7... with mutually different depths are provided on the rim of the circular hole. The hydroponic system is characterized in that the outer periphery of the peripheral frame 3 of the net body 2 is provided with engagers 5, 5, . . . to be selectively fitted into these support recesses.