JPH0220944Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] This invention relates to a plant hydroponic device for sowing seeds of flowers, vegetables, etc. and observing their germination and growth status.

[Conventional technology]

Conventionally, a plant hydroponic device has a seedbed made of foamed synthetic resin placed in a shallow, dish-shaped flower pot, and allows seeds to be sown while the seedbed is impregnated with water and their germination and growth status to be observed. is known.

[The problem that the idea aims to solve]

In the conventional hydroponic device, the seedbed is foam-molded into a large shape from the beginning as a foamed resin mat large enough to fit inside the pot. Even if water is lost due to water absorption (due to germination and growth), the seedbed will not shrink more than the inner diameter of the pot, and for this reason, it is not possible to visually confirm the presence or absence of water in the contracted state of the seedbed. A problem arises in which cultivated plants die due to lack of water.

The present invention was devised to solve the above-mentioned conventional problems, and its purpose is to visually confirm the water shortage state of the seedbed by observing the contracted state of the seedbed and the fallen state of the water replenishment indicator. To provide a water culture device for plants that can avoid the problem of withering of cultivated plants due to lack of water by replenishing water each time.

[Means and actions to solve the problem]

In order to achieve the above object, the hydroponic device of the present invention includes a shallow dish-shaped flowerpot 1, and a container that contracts away from the inner surface of the pot circumferential wall 1a when not in use, but does not contain water when in use. A seedbed 2 made of water-absorbing foamed resin with a relatively thick wall that expands and expands to fill the pot; The water replenishment display body 3 is configured such that a cover lid 5 of the water replenishment display 4a falls inward and rotates when the water replenishment display 4a is warped and curved in a concave shape.

The seedbed 2 is a pine made of water-absorbing foam resin that expands to about twice its size when it contains water, and when the water contained in the pine is completely gone, that is, the seedbed 2 dries to an empty state. If you do,
Although the product returns to the flat, contracted state at the time of product supply (when not in use) where it separates from the inner surface of the pot surrounding wall 1a as shown in Figure 2,
If this happens, the cultivated plants will wither and die due to lack of water, so the stage before that, that is, the stage where the seedbed has become concave and curved due to lack of water (at this stage, there is still moisture in the seedbed 2, and the plant withers and dies) It is necessary to make it possible to visually confirm the water shortage state in nursery bed 2.

Therefore, in the present invention, the water replenishment display 3 equipped with the cover 5 of the water replenishment display 4a is inserted and fixed to the outer circumference of the upper surface of the seedbed 2, and when the seedbed 2 is warped in a concave shape due to lack of water, the water replenishment display 4a is displayed. A cover 5 of the body 3 is tilted inward and rotated to expose a water supply display 4a. Note that the warping and curving of the seedbed 2 due to lack of water is caused by the difference in the degree of contraction between the upper and lower parts of the seedbed, and when the upper part of the seedbed dries and contracts toward the center, it becomes moist and swells. It acts to pull the outer periphery of the lower layer of the seedbed toward the center, and as a result, the upper layer of the seedbed warps and curves in a concave shape (the upper surface is higher on the outer periphery and becomes lower toward the center), and the outer periphery of the lower layer of the seedbed is bent inside the pot. It begins to warp and curve in a convex shape (bulging downward) away from the bottom surface.

〔Example〕

An embodiment of the present invention will be described below with reference to the drawings. In the figure, 1 is a dish-shaped flower pot made of synthetic resin and having a shallow depth, for example, about 10 mm.
The peripheral wall 1a of this flowerpot 1 is shaped like eight petals,
A circular concave portion (not shown) depressed from the pot inner bottom surface is provided at the center of the pot inner bottom surface.

Reference numeral 2 denotes a petal-shaped seedbed placed inside the flower pot 1. When not in use (when supplying the product), the seedbed 2 shrinks away from the inner surface of the pot circumferential wall 1a as shown in FIG. Sometimes it expands greatly in the outer circumferential direction and wall thickness direction to fill the pot with water (for example, when it fills with water, it expands to about twice its size).The wall thickness is relatively thick, such as 15
It is made of a highly expandable and contractible water-absorbing foam resin mat with a shrinkage thickness of about mm.

Examples of this water-absorbing foamed resin include Achilles Aeron Special Foam FM (trade name manufactured by Achilles).
use. Such a water-absorbing foamed resin seedbed 2
As shown in Figure 1, the water impregnates a large amount of water and expands to fill the pot, but as mentioned above, when the water it contains disappears due to natural drying or water uptake by the cultivated plants. Due to the contraction of the upper layer of the seedbed, the seedling is warped and curved into a concave shape.

In the case of this embodiment, the seedbed 2 has a seedbed center portion 2a that fits into the recessed portion of the bottom of the pot and expands into contact with the circumferential surface of the recessed portion, and a fitting hole in the seedbed center portion 2a, and the pot peripheral wall 1a. and a petal-shaped seedbed outer part 2b that expands into contact with the inner part of the seedbed outer part 2b.
Seeds are sown in the center part 2a of the nursery bed, which is more depressed.
Although the seedbed is formed to germinate and grow as shown in FIG. 2, it may be a seedbed made of water-absorbing foamed resin in which the central portion 2a and the outer portion 2b are not separated.

Reference numeral 3 denotes a water replenishment display body which is inserted and fixed onto the outer periphery of the upper surface of the seedbed 2, and has a structure in which the cover 5 of the water replenishment display 4a falls inward and rotates when the seedbed 2 is curved in a concave shape due to lack of water; This water replenishment indicator 3 includes a toy model 4 which has an insert leg 4b at the lower end and a disc 4c with a water replenisher indicator 4a at the top, and a disc mounting shaft modeled after the head shape of the toy model 4. It consists of a cover lid 5 for the water replenishment display 4a, which is pivotally supported so that it can be raised and rotated against the seedbed. When the seedbed 2 is bent into a concave shape due to lack of water, the water supply display 4a is stopped by a stopper projection (not shown) at a position where it is closed as shown in FIG. Water replenishment display 4a is the first
It will fall inward and rotate as shown in the figure.

[Effect of idea]

The hydroponic device of this invention includes a dish-shaped flowerpot 1 as described above, a seedbed 2 made of water-absorbing foamed resin with large expansion and contraction properties, and a cover lid 5 of a water supply display 4a that falls inward and rotates. Therefore, when the nursery bed 2 contains sufficient water necessary for plant cultivation, the nursery bed 2 expands greatly to fill the pot. It can be easily seen by looking at the state in which the water replenishment display 4a of the water replenishment display 3 is hidden by the cover lid 5, and the water contained in the nursery bed 2 is naturally dried or water is absorbed by the cultivated plants. The state in which the seedlings have disappeared due to water can be easily seen by looking at the warped and curved state of the seedbed 2 and the state in which the cover 5 of the water replenishment indicator 3 has fallen down and rotated as shown in Fig. 1. If you look at this condition and confirm that there is a water shortage, and replenish water each time,
It is possible to avoid the problem of withering of cultivated plants due to lack of water.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing a hydroponic device according to an embodiment of the present invention in a state in which water is supplied (hydroponic state);
The figure is a plan view showing the water culture device in an unused state before water supply (state at the time of product supply), and FIGS. 3A and 3B are a partially cutaway side view and front view of the water replenishment indicator. DESCRIPTION OF SYMBOLS 1... Flower pot, 1a... Pot surrounding wall, 2... Seedbed of water-absorbing foamed resin, 3... Water replenishment indicator, 4... Toy model, 4a... Water replenishment indicator, 4b... Insert leg, 5... ...Cover lid.

Claims (1)

[Scope of utility model registration request] A shallow, dish-shaped flowerpot 1, and a relatively thick wall that contracts away from the inner surface of the pot peripheral wall 1a when not in use, but expands greatly to fill the pot with water when in use. A seedbed 2 made of a water-absorbing foamed resin with large expansion and contraction properties, and a water replenishment display 4 which is inserted and fixed to the outer periphery of the upper surface of the seedbed 2 when the seedbed 2 is warped into a concave shape due to lack of water.
A hydroponic device for plants comprising a water replenishment indicator 3 having a structure in which a cover lid 5 of a is tilted inward and rotated.