JP2018191560A - Simple hydroponic device for general household - Google Patents

Abstract

To provide a hydroponic device that has root fixing holders capable of appropriately holding plant roots, and makes management of water easier.SOLUTION: A hydroponic device 1 comprises: a planter 2; and a plant growing plate 3 housed inside the planter 2, and also comprises a root fixing holder 32 having three sets of a pair of leg parts opposing to each other on an inner rim of a flange part at an equal gap, the leg part includes foot parts whose bottom edges are bent in a center direction of a through hole 30 of the plant growing plate 3. In leg parts of each pair opposing to each other, the size of the leg parts is adjusted and is twice or more the size of a through hole in a vertical direction.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a hydroponic cultivation apparatus having excellent plant root retention characteristics and facilitating water management, and a root fixing holder applicable to the hydroponic cultivation apparatus.

  In the past, when a person living in an apartment or apartment established a kitchen garden to cultivate vegetables, it was common to plant in pots on a veranda.

  In recent years, there are increasing examples of companies conducting agriculture by hydroponics by making effective use of school buildings that have been abandoned or electrical component factories with reduced operating rates. Abandoned school buildings, electrical parts factories, etc. are equipped with lighting equipment and water supply facilities to some extent, so by making appropriate capital investments, they can be diverted to hydroponics plants, making it easy to prepare equipment. In a hydroponics plant that has been capital-invested by a company, in order to supply vegetables with stable quality and price, the light required for photosynthesis of vegetables is given by LED lighting, and the water necessary for the growth of vegetables Nutrients are given by liquid fertilizer, and the environment such as the optimum temperature for vegetable growth is given by air conditioning equipment. For this reason, vegetables grown by hydroponics that do not depend on the natural environment such as seasons and weather have been distributed to the market at a stable quality and price throughout the year, and hydroponic cultivation has attracted attention.

  And even in general households, according to hydroponics, the water and nutrients necessary for the growth of vegetables may be given together as liquid manure, and vegetables can be cultivated more easily than pot planting. Hydroponics is also less susceptible to diseases and root rot due to microorganisms that inhabit the soil than pot plants, and it is easy to cultivate vegetables with less fear of adjusting the amount of fertilizer and adjusting fertilizer. can do. Therefore, even in ordinary households, interest in growing vegetables by hydroponics is increasing.

  However, capital investment like a company is difficult in ordinary households, and there is a problem when growing vegetables by hydroponics. For example, in terms of improving the environment around the water so that vegetables can always absorb nutrients from the roots, liquid fertilizer is managed using pumps in ordinary households as well as liquid fertilizer management using pumps in hydroponic cultivation factories. This is not realistic considering capital investment costs, equipment space, electricity costs, and the like. In addition, regarding the cultivation method, companies adopt a method of cultivating vegetables from seeds for the purpose of mass production, but ordinary households cultivate vegetables purchased with seedlings for the purpose of harvesting small quantities of many kinds of vegetables. There is a tendency to adopt a technique, and it is necessary to provide means for grasping the roots of seedlings instead of soil.

  Here, Patent Literature 1 includes a hydroponic cultivation apparatus that holds a plant root with a planting plate for hydroponic cultivation provided with a planting plate body and a planting hole having a cross-shaped slit on a water tank. It is disclosed.

  Further, Patent Document 2 discloses a hydroponic system in which a planting panel provided with a through hole for planting having a concavo-convex circumferential holding structure on a nutrient solution circulation bed holds a plant root and circulates water by a pump. A cultivation apparatus is disclosed.

  Patent Document 3 discloses a hydroponic cultivation apparatus that holds a plant root with a lid provided with a receptacle having a lower end diameter smaller than an upper end diameter on a box-shaped container.

Utility Model Registration No. 3197822 JP 2014-45669 A JP 2014-33637 A

  However, the devices that hold the roots of plants as disclosed in Patent Documents 1 to 3 cannot be deformed according to the size of the roots and cannot properly hold the roots of plants. Moreover, in the hydroponic cultivation apparatus as disclosed in Patent Documents 1 to 3, there is a problem that when the liquid level is lowered, unless the liquid fertilizer is manually or mechanically added, the roots of the plants are not immersed in the liquid fertilizer. is there.

  Therefore, an object of the present invention is to provide a hydroponic cultivation apparatus that includes a root fixing holder that can appropriately hold roots of a plant and that facilitates water management.

  The inventors of the present invention have conducted intensive research in view of the above problems. As a result, a hydroponic cultivation apparatus comprising a planter and a plant growth plate housed inside the planter, wherein the collar part and a pair of leg parts facing each other are equally spaced on the inner edge of the collar part. A root fixing holder having a root fixing leg having a pair, and the leg part includes a foot part whose lower end is bent toward the center of the through hole of the plant growth plate, and in each pair of leg parts facing each other, It has been found that the above problems can be solved by a hydroponic cultivation apparatus that adjusts the dimensions of the legs and that is twice or more the vertical dimension of the through-hole, and has completed the present invention. Specifically, the present invention provides the following.

  (1) A first aspect of the present invention is a hydroponic cultivation apparatus including a box-shaped planter and a plant growing plate accommodated inside the planter, wherein the plant growing plate includes a through hole, The root fixing holder, comprising: a through plug that plugs the through hole; a root fixing holder that is accommodated in the through hole; and a fixing auxiliary material that is a sponge-like elastic body that is accommodated in the root fixing holder. Is a flange portion having an inner edge substantially the same size as the inner edge of the upper surface of the through hole in the plant growth plate, an outer edge larger than the inner edge of the upper surface of the through hole, and a vertical direction from the inner edge of the flange portion. A pair of leg portions facing each other are provided with three root fixing leg portions arranged at equal intervals on the inner edge of the collar portion, and the leg portions are bent at the lower end toward the center of the through hole. Each pair of legs facing each other. Thus, the dimension from the upper end to the lower end of one leg is not more than the dimension from the upper end to the lower end of the other leg, and is not less than twice the dimension of the through hole in the vertical direction. It is the hydroponic cultivation apparatus characterized by this.

  (2) The hydroponic cultivation apparatus according to (1), wherein the plant growing plate is made of foamed polystyrene or foamed polyethylene, and has a vertical dimension of 1.5 cm to 2.0 cm. Aluminum foil is stuck and a plastic film is stuck on the lower surface.

  (3) It is a hydroponic cultivation apparatus as described in (1) or (2), Comprising: The solution bag accommodated between the inside of the said planter and the said plant growth board, The said solution bag is polyethylene or polypropylene The thickness is 0.01 mm or more and 0.03 mm or less, the color is silver or black, and the height when stored without gaps inside the planter is at least 5 cm higher than the height of the inner wall of the planter And the part higher than the inner wall of the said planter comprises the cover part folded and arrange | positioned so that the upper surface of the said plant growth board may be covered, It is characterized by the above-mentioned.

  (4) The hydroponic cultivation apparatus according to (3), wherein two supporting columns are accommodated between the inside of the planter and the solution bag, and an accommodating bag for accommodating the planter and the supporting column. The planter has a rectangular inner bottom, the plant growth plate has pillar holes through which the pillars pass at four corners, and the pillars are arranged in an arch shape on a diagonal line of the inner bottom of the planter. In the portion where the struts cross each other, a strut fixing string that binds two acute angle portions is provided, and the storage bag is a bag made of cold or plastic.

  (5) The hydroponic cultivation apparatus according to any one of (1) to (4), comprising an air pump and a solar power generation panel or a rechargeable battery and a timer.

  (6) A second aspect of the present invention is a root fixing holder for fixing the roots of a plant, and has an inner edge and a collar part having an outer edge larger than the inner edge, and is opposed to each other in the vertical direction from the inner edge of the collar part. A set of leg portions includes three root fixing leg portions arranged at equal intervals on the inner edge of the collar portion, and the root fixing leg portions are bent at the lower end toward the center of the root fixing holder. A foot portion is provided.

  (7) The root fixing holder according to (6), wherein each pair of the root fixing legs facing each other has a dimension from the upper end to the lower end of one root fixing leg, and the other root fixing leg. It is characterized in that it is not more than the dimension from the upper end to the lower end in the part.

  (8) The root fixing holder according to (6) or (7), wherein the root fixing legs of each pair facing each other are at the lower ends, the legs bent in the center direction of the root fixing holder. It is provided with a certain lower end foot part and an intermediate foot part located in the upper end side from the lower end foot part, and bent in the direction of the center of the root fixing holder.

  (9) The hydroponic cultivation apparatus according to any one of (6) to (8), wherein the root fixing holder is disposed between the collar portion and the root fixing leg portion of the root fixing holder. A stem accommodating cylinder that extends in the vertical direction from the inner edge of the collar portion and can accommodate a plant stem, and the stem accommodating cylinder holds the root fixing holder in a direction perpendicular to the vertical direction via a hinge mechanism. The root fixing holder is vertically divided so that it can be opened and closed, and the root fixing holder can accommodate a plant stem from a direction perpendicular to the vertical direction in the open position, and in the closed position, the root fixing holder is provided by a lock mechanism. Can be locked.

  (10) A third aspect of the present invention is a fixing auxiliary material that is accommodated in a root fixing holder that fixes a plant root, and is capable of fixing a plant stem. The fixing auxiliary material is aluminum on a vertical upper surface. A foil is attached, a plastic film is attached to the lower surface in the vertical direction, is substantially cylindrical, and the fixing auxiliary material is located at the axial center and penetrates the fixing auxiliary material in a direction parallel to the axial direction. And a slit extending radially from the axial center on the upper surface in the vertical direction, and a recessed slit that forms a recessed portion in a direction parallel to the axial center from the axial center to the outer periphery.

  (11) The fixing auxiliary material according to (10), which is made of foamed polystyrene or foamed polyethylene, has a vertical dimension of 1.5 cm to 2.0 cm, and a diameter of 2.0 cm to 4.0 cm. The cut is a cross-shaped cut, and the dimension from the axial center of each cut is 0.5 cm or more and 1.4 cm or less.

  (12) A fourth aspect of the present invention is a solution bag clip capable of holding a solution bag accommodated in a hydroponic cultivation apparatus, wherein the solution bag clip includes a first support body having a free end at one end; A connecting portion connected to the other end of the first support, and a second support connected to the other end of the connecting portion that is not connected to the first support. The body, the connecting portion and the second support form the same surface, and the second support is a gap formed on the same surface between the first support and the second support. It is a loop shape having a second opening in a direction different from the first opening.

  (13) A fifth aspect of the present invention is a hole saw in which a through hole for accommodating a root fixing holder is formed in a plant growth plate used in a hydroponic cultivation apparatus, the hole saw driver being removable from the hole saw driver. A hole saw blade connected to the base portion, and the hole saw driver is positioned at the base of the base portion and fixed in a direction parallel to the axial direction. And a step portion in which at least two steps or more are arranged stepwise in a concentric manner with respect to the base portion, and the hole saw driver is different between the base portion and the step portion or each step portion. A hole saw blade having an inner diameter is detachably connectable.

  The hydroponic cultivation apparatus according to the present invention includes a root fixing holder having a collar portion and a root fixing leg portion having three pairs of leg portions facing each other on the inner edge of the collar portion at equal intervals. The portion includes a foot portion whose lower end bends in the center direction of the through hole of the plant growth plate, adjusts the size of the leg portion between each pair of opposing leg portions, and has a vertical dimension of the through hole. 2 times or more. Accordingly, the root fixing leg can be freely deformed according to the size of the root, and the top and bottom of the root can be appropriately fixed regardless of the size. Moreover, since the hydroponic cultivation apparatus which concerns on this invention arrange | positions a plant growth board so that it may be accommodated inside a planter, even when a liquid level falls, a plant growth board can move with the change of a water level. Therefore, management of water is easy.

It is an expansion | deployment perspective view of the hydroponic cultivation apparatus of this invention. It is AA 'sectional drawing of FIG. 1 of the hydroponic cultivation apparatus of this invention. (A) is an expanded sectional view of the root fixing holder in the AA 'cross section of FIG. 1 of the hydroponic cultivation apparatus of this invention, (b) is AA' of the hydroponic cultivation apparatus of this invention of FIG. It is an expanded sectional view about one Example of the root fixing holder in a cross section. (A) And (b) is a perspective view of the hydroponic cultivation apparatus as one Example of this invention. (A) And (b) is an expansion | deployment perspective view of the hydroponic cultivation apparatus in FIG. 4 of this invention. It is an expansion | deployment perspective view of the hydroponic cultivation apparatus of this invention. It is BB 'sectional drawing of FIG. 6 of the hydroponic cultivation apparatus of this invention. (A) is a perspective view of the root fixing holder of the present invention, (b) is a perspective view showing an open position of the root fixing holder in (a), and (c) is a perspective view of the root fixing holder in (b). It is explanatory drawing which shows the state which accommodated the plant as a position, (d) is explanatory drawing which shows the state which made the root fixing holder in (c) a closed position, and accommodated the plant. (A) is a perspective view of the fixing auxiliary material of this invention, (b) is explanatory drawing which shows the state which accommodated the plant in the fixing auxiliary material in (a). (A) is a top plan view of the solution bag clip of the present invention, (b) is an explanatory view showing a state in which the solution bag clip in (a) holds the solution bag in the hydroponic cultivation apparatus, (c) It is partial explanatory drawing which shows before holding the solution bag in a hydroponics apparatus with the solution bag clip in (a), (d) is a solution bag clip in the solution bag in a hydroponics apparatus by the solution bag clip in (a). (E) is an enlarged explanatory view of a state in which the solution bag clip in (b) holds the solution bag. (A) is a perspective view of the hole saw driver in the hole saw of the present invention, (b) and (c) are perspective views showing the hole saw driver of the present invention and a hole saw blade removably connected to the hole saw driver. (D) And (e) is explanatory drawing which shows the use condition of the hole saw driver of this invention.

  Hereinafter, the present invention will be described in detail with reference to the drawings.

“First aspect”
[Hydroculture device]
FIG. 1 is a developed perspective view of the hydroponic cultivation apparatus 1 of the present invention, and FIG. 2 is a cross-sectional view taken along line AA ′ of FIG. The hydroponic cultivation apparatus 1 includes a box-shaped planter 2 and a plant growing plate 3 accommodated inside the planter 2, and a solution bag 4 accommodated between the planter 2 and the plant growing plate 3. May be provided. Moreover, as shown in FIG. 6 which is the expansion | deployment perspective view of the hydroponic cultivation apparatus 1 of this invention, and FIG. 7 which is BB 'sectional drawing of FIG. 6, it is between the inner side of the planter 2 and the solution bag 4. As shown in FIG. You may provide the two support | pillars 5 accommodated, and the accommodation bag 6 which accommodates the planter 2 and the support | pillar 5 in it. Moreover, although not shown in figure, the hydroponic cultivation apparatus 1 may be provided with the electric air pump and the photovoltaic power generation panel or the rechargeable battery, and the timer.

<Planter>
The planter 2 may have any shape that can store liquid fertilizer when hydroponically cultivated, and is preferably a box shape. Moreover, it is preferable that an external shape and an inner bottom are a rectangle so that it can be easily hydroponically cultivated on a veranda in an apartment or an apartment, and the planters 2 are easily arranged side by side. In addition, as shown in FIGS. 4 (a) and 4 (b) and FIGS. 5 (a) and 5 (b), it is suitable to cultivate in a single strain such as a plant in which a branch tends to grow sideways or a plant having a large root. It is preferable that the outer shape and the inner bottom of the plant have a substantially square shape or a substantially circular shape. Moreover, when the outer shape and inner bottom of the planter 2 are substantially circular, it is preferable to provide a recess 21 for accommodating the column 5.

  The material of the planter 2 is not particularly limited as long as it has liquid impermeability, but when the planter 2 is filled with water or liquid fertilizer, the movement of the planter 2 is restricted, so the specific gravity is relatively small. Synthetic resins such as expanded polystyrene, polyethylene, polypropylene, acrylic resin, and polyvinyl chloride are preferred. In particular, it is preferably foamed polystyrene or acrylic resin. Thereby, when changing the planter 2 according to the growth of the root of the plant, it is economical and can be easily crushed and disposed of.

<Plant breeding board>
As shown in FIGS. 1, 2, and 4 to 7, the plant growing plate 3 is housed in the planter 2, and includes a through hole 30, a through plug 31 that plugs the through hole 30, and a through hole Root fixing holder 32 accommodated in 30, fixing auxiliary material 37, which is a sponge-like elastic body, accommodated in root fixing holder 32, and pillar holes 38 provided at the four corners of plant growing plate 3.

  The plant growing plate 3 is accommodated inside the planter 2. Thereby, even when the liquid level is lowered, the plant growth plate 3 moves in the vertical direction as the water level changes, so that the water can be easily managed.

  The material of the plant growth plate 3 is preferably a synthetic resin that is hydrophobic and has a low specific gravity, and is preferably expanded polystyrene or expanded polyethylene. When the planter 2 is filled with liquid fertilizer, if it is foamed polystyrene or foamed polyethylene with a light specific gravity, it will float easily in the liquid fertilizer, and the plant growth plate 3 moves in the vertical direction as the water level changes even when the liquid level falls. be able to.

  The outer shape of the plant growing plate 3 is accommodated such that the distance between the inner edge of the planter 2 and the plant growing plate 3 is 0.5 cm or more and 1 cm or less when the plant growing plate 3 is not in contact with the inner edge of the planter 2. The size is preferred. Thereby, even when a liquid level falls, the plant growth board 3 can move to a perpendicular direction with the change of a water level, and the plant growth board 3 moves to a horizontal direction too much, and becomes unstable. Can be prevented.

  It is preferable that the plant growing board 3 has an aluminum foil attached to the upper surface when the plant growing plate 3 is accommodated in the planter 2 and a plastic film attached to the lower surface. Radiation heat is reflected by the aluminum foil affixed on the upper surface, and fluctuations in the temperature of the liquid fertilizer filled in the planter 2 can be suppressed. In addition, the plastic film affixed to the lower surface can make the plant growing plate 3 easily float on the liquid surface of the liquid fertilizer filled in the planter 2 and is difficult to adhere scales or the like adhering to the contact surface with the liquid fertilizer. This can reduce the labor of cleaning.

  The vertical dimension when the plant growing plate 3 is accommodated in the planter 2 is preferably 1.5 cm or more and 2.0 cm or less. If it is the said range, the capacity | capacitance required in order to fill the liquid fertilizer in the planter 2 can be left in the planter 2.

(Through hole, through plug, strut hole)
The through-holes 30 and the through-plugs 31 that plug the through-holes 30 are formed in the plant growing plate 3 and a plurality of through-plugs 31 may be formed. Thereby, when a plant is cultivated in a plurality of through-holes 30 and the roots are prosperous, the appearance of the hydroponic cultivation apparatus 1 is improved by taking out the plants from the through-holes 30 and plugging them with the through-plugs 31 appropriately. Meanwhile, hydroponics can be done according to plant growth. Moreover, when the liquid fertilizer in the planter 2 decreases, liquid fertilizer can be added from the through-hole 30 after taking the through plug 31, and adjustment of liquid fertilizer can be made easy.

  One through hole 30 may be provided in the vicinity of the center of the plant growing plate 3. When the outer shape of the plant growing plate 3 is rectangular, a plurality of through holes 30 may be provided at equal intervals in the longitudinal direction. In the case of a plant that grows from a runner, such as a strawberry seedling, roots and runners grow from the crown at the border between the stem and the root, so a plurality of through holes 30 are provided at equal intervals in the longitudinal direction of the plant growth plate. Thus, the runner can be accurately immersed in the liquid manure from the through hole 30. Depending on the type of plant, the spread of the branches of the plant and the size of the roots are different, and in the case of a plant that is better to be cultivated in one strain, in FIGS. 4 (a) and (b) and FIGS. 5 (a) and (b) As shown, it is preferable to provide one through hole 30 in the vicinity of the center of the plant growth plate, thereby promoting the growth of the plant.

  The shape of the through hole 30 is not particularly limited, but is preferably substantially cylindrical or rectangular. Further, the size of the through hole 30 is not particularly limited, but when the through hole 30 has a substantially cylindrical shape, the diameter is preferably 3 cm or more and 5 cm or less, and more preferably 4 cm.

  The through plug 31 preferably has a shape that fits into the through hole 30. Thereby, when the plant growth plate 3 is punched to provide the through hole 30, the punched from the plant growth plate 3 can be reused as the through plug 31, and the through plug 31 can be easily prepared. Further, the through plug 31 is preferably provided with a protrusion in the vertical direction when punched. Thereby, opening and closing of the plug by the through plug 31 can be facilitated. The protrusion may be formed by inserting a rod-like object into the through plug 31 or may be formed by processing the through plug 31. However, the protrusion may be formed on the through plug 31 with wood, for example, a toothpick or a plant branch. You may insert and form. Appropriate appearance of the hydroponic cultivation apparatus 1 while closing the hole of the through hole 30 where the plant is not cultivated by appropriately cutting a branch having an appropriate thickness with leaves and inserting it into the through plug 31 You can also.

  The plant growing plate 3 may be provided with column holes 38 through which the columns 5 are passed at the four corners of the plant growing plate 3 so that the columns 5 can be accommodated in the planter 2. The diameter may be approximately the same as the thickness of the support 5 so that the support 5 can be accommodated in the planter 2.

(Root fixing holder)
As shown in FIGS. 3A and 3B, the root fixing holder 32 is accommodated in the plant growing plate 3. In the plant growth plate 3, a collar portion 33 having an inner edge substantially the same size as the inner edge of the upper surface of the through hole 30, an outer edge larger than the inner edge of the upper surface of the through hole 30, and a vertical direction from the inner edge of the collar portion 33, A pair of leg portions 35 facing each other is provided with three root fixing leg portions 34 arranged at equal intervals on the inner edge of the collar portion 33, and the leg portions 35 are arranged at the lower end in the center direction of the through hole 30. In each pair of leg portions 35 provided with bent foot portions 36 and facing each other, the dimension from the upper end to the lower end of one leg section 35 is less than the dimension from the upper end to the lower end of the other leg section 35. And more than twice the vertical dimension of the through-hole 30. As a result, the root fixing legs 34 can be freely deformed according to the size of the root, and the top and bottom of the root are appropriately fixed regardless of the size. Therefore, for example, when a pot seedling placed in a pot and grown on soil is taken out from the pot and washed after washing the root with water, the roots of the plant can be appropriately retained.

  The material of the root fixing holder 32 is preferably a synthetic resin such as polyethylene, polypropylene, acrylic resin, or polyvinyl chloride because of its relatively small specific gravity, durability, and elasticity.

  The collar portion 33 and the root fixing leg portion 34 of the root fixing holder 32 may be integrally formed, or may be formed after being separately molded and then bonded, but from the viewpoint of durability, it is integrally formed. It is preferred that

((Bridge))
As shown in FIG. 1, the collar portion 33 has an inner edge that is approximately the same size as the inner edge of the upper surface of the through hole 30 and an outer edge that is larger than the inner edge of the upper surface of the through hole 30. Thereby, when accommodating the root of a plant, it does not become a hindrance, and after accommodating a plant, it can prevent that the root fixing holder 32 falls from the through-hole 30 by the outer edge larger than the inner edge of the through-hole 30. it can. Although the shape of the outer edge of the collar part 33 does not have a restriction | limiting in particular, It is preferable to have an outer edge 0.5 cm or more and 1.5 cm or less from the inner edge of the upper surface of the through-hole 30. FIG. If it is the said range, even if the outer edge of the collar part 33 comes between the through-hole 30 and the through-hole 30, it can prevent that the collar parts 33 overlap. Further, the thickness of the collar portion 33 is not particularly limited, but when it is 0.1 cm or more and 0.3 cm or less, when the root fixing holder 32 is taken out from the through hole 30, the plant growing plate 3 and the collar portion 33 It is easy to pick it up by hooking a nail or the like into the gap, making it easy to pinch.

  Further, as shown in FIG. 3B, two sets of locking portions 331 facing each other on the outer edge of the collar portion 33 may be arranged in the vertical direction. When the brim portion 33 is not in close contact with the plant growing plate 3, the grove plant may be pulled out of the plant growing plate 3 together with the root fixing holder 32 by a slight wind when the root is not grown. For this reason, the root fixing holder 32 can be stably engaged with the plant growing plate 3 by the locking portion 331 even when the root fixing holder grips the tree plant. Further, a barb may be provided at the tip of the locking portion 331.

((Leg, Root fixed leg, Foot))
As shown in FIGS. 3A and 3B, the leg portion 35 has a pair of leg portions 35 facing each other in the vertical direction from the inner edge of the collar portion 33, and equidistant on the inner edge of the collar portion 33. Three sets are arranged to form a root fixing leg 34. Thereby, even if the root of a plant spreads in any horizontal direction, it can hold a root accurately.

  In each pair of leg portions 35 facing each other, the dimension from the upper end to the lower end of one leg section 35 is equal to or smaller than the dimension from the upper end to the lower end of the other leg section 35, and the through hole 30. It is more than twice the vertical dimension. As a result, the top and bottom of the root can be properly fixed regardless of the size, and a portion longer than the through hole 30 extends to the outside of the through hole 30 so that the root fixing leg 34 can freely move according to the size of the root. Deformable. Therefore, the root can be appropriately retained according to the size of the root and the growth of the plant. It is preferable that the leg portions 35 facing each other have two steps.

  The leg portion 35 includes a foot portion 36 that bends in the central direction of the through hole 30 from the inner edge of the collar portion 33 to the lower end in the vertical direction. As a result, the top and bottom of the root are more appropriately fixed regardless of the size. Therefore, the root of the plant can be retained more accurately.

  The foot portion 36 may be integrally formed with the leg portion 35 or may be formed after being separately formed and then bonded, but is preferably integrally formed from the viewpoint of durability. The foot portion 36 is preferably provided with a projection of 0.3 cm to 0.5 cm with respect to the central direction.

  The shape of the root fixing leg 34 formed by the leg 35 and the foot 36 is not particularly limited as long as it is a structure that can hold the root of the plant, but in order to stably hold the root of the plant, a claw Shape or L-shape is preferable, and a barb may be provided at the tip of the foot 36.

(Fixing aid)
The fixing auxiliary member 37 is a sponge-like elastic body accommodated in the root fixing holder 32. Thereby, when the inner diameter of the root fixing holder 32 is larger than the thickness of the stem of the plant and the plant does not fit, the gap can be filled. Therefore, the plant can be stably upright. Here, in the case of a plant grown from a runner, such as a strawberry seedling, buds and runners grow from the crown at the boundary between the stem and the root, so it is necessary to prevent the liquid surface from being crowned. However, since the stem is thin, it is necessary to fix the root and the stem. According to the root fixing holder 32 according to the present invention, the crown can be taken out from the liquid surface and the position of the crown can be fixed by the fixing auxiliary material 37 while the root is appropriately fixed by the root fixing leg 34. And by providing a plurality of the above-mentioned through-holes 30, it is possible to secure a place for fixing the stock from the runner. It can be cultivated easily.

  The material of the fixing auxiliary member 37 is not particularly limited as long as it is a sponge-like and elastic material, but foamed polyethylene or foamed polyurethane is preferable. Thereby, according to the kind and growth of a plant, the clearance gap between the root fixing holder 32 and a plant stem can be filled, and a plant can be made to stand stably.

<Solution bag>
As shown in FIGS. 1 and 2, the solution bag 4 is accommodated between the planter 2 and the plant growing plate 3. Thereby, even if the planter 2 is damaged, for example, liquid fertilizer can be prevented from leaking. Even if viruses, microorganisms, and algae are bred in the liquid fertilizer, the liquid fertilizer can be replaced without replacing the planter 2 as the outer container by replacing the liquid fertilizer together with the solution bag 4 containing the liquid fertilizer.

  The material of the solution bag 4 is preferably a liquid-impermeable plastic, and is preferably polyethylene or polypropylene. Moreover, it is preferable that the thickness of the solution bag 4 is 0.01 mm or more and 0.03 mm or less from a viewpoint that strength and liquid fertilizer can be filled in the planter 2 a lot. The color of the solution bag 4 is not particularly limited, but silver or black is preferable from the viewpoint of reflection of radiant heat and absorption of infrared rays.

  The height of the vertical direction when the solution bag 4 is accommodated inside the planter 2 without a gap is 5 cm or more higher than the height of the inner wall of the planter 2, and the plant wall 2 is higher than the inner wall of the planter 2. The lid 40 is arranged so as to be folded so as to cover the upper surface. Thus, by covering the gap between the planter 2 and the plant growth plate 3, the solution bag 4 can be given a function similar to a mulching sheet in outdoor cultivation, and algae can be prevented from growing in the liquid manure. . The lid 40 that covers the upper surface of the plant growing plate 3 preferably has a dimension that covers 5 cm to 10 cm from the edge of the upper surface of the plant growing plate 3. Moreover, the cover part 40 should just be a mode which covers the upper surface of the plant growth board 3, and may be taped.

<Support>
As shown in FIGS. 6 and 7, the column 5 is accommodated between the inside of the planter 2 and the solution bag 4. Thereby, bending of the accommodation bag 6 can be prevented.

  When the inner diameter of the planter 2 is rectangular, the support column 5 is preferably arranged in an arch shape on the diagonal line of the inner bottom of the planter 2. Thereby, even if there is no instrument for fixing the column 5, the water pressure of the planter 2 and the repulsive force of the bent column 5 become the force pushing the outer wall of the planter 2. Therefore, it can prevent that the support | pillar 5 shifts and moves.

  The support 5 is not particularly limited as long as it is an elastic material, but is preferably plastic, and for example, Dunpole (registered trademark) manufactured by Ube Eximo Co., Ltd. is preferable.

  The column 5 may be bound by a column fixing string 50 at a portion where the columns 5 intersect when they are arranged in an arch shape on the diagonal line on the inner bottom of the planter 2. In particular, when the inner bottom of the planter 2 is rectangular, it is preferable that the planter 2 is provided so as to bind the acute angle portion of the intersecting portion. Thereby, force acts on the support column 5 so that the acute angle portion spreads outward, and the repulsive force of the bent support column 5 can be increased. Therefore, it is easier to prevent the support column 5 from shifting and moving. The strut fixing string 50 is not particularly limited as long as it is string-shaped, but from the viewpoint of durability, the material is preferably plastic such as polypropylene or polyethylene, or silicone.

  As shown in FIG. 7, a tip protector 51 may be provided at the tip of the column 5. Thereby, when the water pressure of the planter 2 and the repulsive force of the bent support column 5 act on the tip of the support column 5 to push the outer wall of the planter 2, the force can be diffused. The material of the tip protector 51 is not particularly limited, but is preferably an elastic plastic.

<Containment bag>
As shown in FIG. 6, the accommodation bag 6 accommodates the planter 2 and the column 5. As a result, the entire planter 2 is accommodated instead of covering the planter 2. Therefore, even when the hydroponic cultivation apparatus 1 is installed outdoors, it is possible to prevent the accommodation bag 6 from being blown off by strong winds and to prevent insects and birds from approaching the plant.

  The storage bag 6 is preferably a cold bag or a plastic bag so as to prevent insects and birds from approaching the plant. From the viewpoint of air permeability, a net-like or mesh-like plastic insect net or From the viewpoint of cold protection, a polyethylene or polypropylene bag is preferable.

  The size of the accommodation bag 6 may be a size that can accommodate the planter 2, and the height may be a size that can accommodate the column 5 when the column 5 is accommodated in the planter 2. The shape may be any shape that can accommodate the planter 2.

  The accommodation bag 6 is preferably provided with an opening 60 at the top. Thereby, temperature adjustment can be easily performed by opening and closing the opening 60, and addition of liquid fertilizer and harvesting of cultivated vegetables can be facilitated.

<Electric air pump>
The hydroponic cultivation apparatus 1 may include an electric air pump. Thereby, air can be sent to the root of a plant and the growth of a plant can be promoted. The electric air pump is preferably driven by a solar power generation panel or a rechargeable battery, and it is preferable that a timer is connected to the rechargeable battery so that air can be sent at regular intervals. Thereby, the power consumption by an electric air pump can be suppressed.

“Second aspect”
[Root fixing holder]
As shown in FIGS. 1 to 3, the second aspect of the present invention is a root fixing holder 32 for fixing the roots of a plant, and includes a collar portion 33 having an inner edge and an outer edge larger than the inner edge, and an inner edge of the collar section 33. A pair of leg portions 35 that are opposed to each other in the vertical direction are provided with three root fixing leg portions 34 arranged at equal intervals on the inner edge of the collar portion 33, and the root fixing leg portion 34 is provided at the lower end. And a foot portion 36 that is bent toward the center of the root fixing holder 32. As described above, this allows the root fixing legs 34 to be freely deformed according to the size of the root, and the root of the plant can be appropriately fixed as the plant grows. The nutrients of the solution can be easily delivered from between the root fixing legs 34 to the roots of the plant, and the root rot can be hardly caused.

  As shown in FIGS. 3 (a) and 3 (b), the root fixing legs 34 of each pair facing each other have a dimension from the upper end to the lower end of one root fixing leg 34, and the other root fixing legs 34 It is preferable that it is below the dimension from the upper end to a lower end in the leg part 34. FIG. Thereby, the top and bottom of the root can be appropriately fixed regardless of the size.

  As shown in FIG. 8A and FIG. 8B, each set of root fixing legs 34 facing each other has a lower end foot part that is a foot part 36 that bends toward the center of the root fixing holder 32 at the lower end. 36 a and an intermediate foot portion 36 b that is located on the upper end side of the lower end foot portion 36 a and is bent toward the center of the root fixing holder 32. Thereby, even when the root of a plant grows along with the growth of the plant, the lateral expansion of the root of the plant can be prevented. The lower foot 36a and the intermediate foot 36b may be integrally formed with the leg 35, or may be formed after being separately molded and bonded, but from the viewpoint of durability, they are integrally formed. It is preferable. Moreover, it is preferable that the lower end foot part 36a is provided with a projection of 0.3 cm or more and 0.5 cm or less with respect to the central direction. The intermediate foot portion 36b may have substantially the same dimensions as the lower end foot portion 36a, may be shorter than the lower end foot portion 36a, or may be longer.

  As shown in FIGS. 8A and 8B, the root fixing holder 32 is arranged between the collar portion 33 and the root fixing leg portion 34 of the root fixing holder 32 in the vertical direction from the inner edge of the collar portion 33. It is further preferable to provide a stem accommodating cylinder 39 that can accommodate a plant stem. Further, as shown in FIGS. 8B to 8D, the stem accommodating cylinder 39 is arranged in the vertical direction so that the root fixing holder 32 can be opened and closed in a direction perpendicular to the vertical direction via the hinge mechanism 391. It is preferable to be divided into two. Thereby, for example, when a pot seedling put in a pot and grown on soil is taken out from the pot and washed after washing the root with water, It can be accommodated and held in the root fixing holder 32 without damaging the roots of the plant.

  More preferably, the root fixing holder 32 can accommodate a plant stem from a direction perpendicular to the vertical direction in the open position, and can lock the root fixing holder 32 by the lock mechanism 392 in the closed position. For example, the lock mechanism 392 may be provided in the collar portion 33 or may be provided in the stem accommodating cylinder 39. The lock mechanism 392 is not particularly limited, and may be, for example, the lock mechanism 39b including a flexible claw member having a claw portion and an insertion hole that can accommodate the claw portion by bending the claw member.

  The root fixing holder 32 according to the second aspect of the present invention can be used in the hydroponic cultivation apparatus 1 according to the first aspect of the present invention, and the hydroponic cultivation apparatus according to the first aspect of the present invention. Other configurations of the root fixing holder 32 in 1 can be appropriately employed.

“Third embodiment”
[Fixing aid]
As shown in FIGS. 9A and 9B, the third aspect of the present invention is a fixing auxiliary material 37 that is accommodated in a root fixing holder 32 that fixes a plant root and can fix a plant stem. The fixing auxiliary material 37 has an aluminum foil attached to the upper surface in the vertical direction and a plastic film attached to the lower surface in the vertical direction, and has a substantially cylindrical shape. The fixing auxiliary material 37 is located at the axial center and parallel to the axial direction. A stem fixing hole 371 that penetrates the fixing auxiliary member 37 in any direction, a cut 372 that extends radially from the axial center on the upper surface in the vertical direction, and a recess that forms a recess in the direction parallel to the axial center from the axial center to the outer periphery A slit 373. Accordingly, the plant stem can be fixed by the fixing auxiliary material 33 while the root of the plant is fixed by the root fixing holder 32. The cut 372 can appropriately fix the plant stem in accordance with the growth of the plant stem, and the recess slit 373 enables easy accommodation of the plant.

  The material of the fixing auxiliary material 37 is preferably expanded polystyrene or expanded polyethylene, the vertical dimension (thickness) is 1.5 cm or more and 2.0 cm or less, and the diameter is 2.0 cm or more and 4.0 cm or less. It is preferable that there is. In addition, the cut line 372 is not particularly limited as long as it has a radial shape, but is preferably a cross-shaped cut line. Moreover, it is preferable that the dimension from the axial center in each cut | interruption 372 is 0.5 cm or more and 1.4 cm or less.

  The material of the fixing auxiliary member 37 is not particularly limited as long as it is a sponge-like and elastic material, but foamed polyethylene or foamed polyurethane is preferable. The cross-sectional shape of the recess in the horizontal direction of the recess slit 373 is not particularly limited, and may be a substantially triangular shape having an apex at the axial center, a substantially triangular shape having a side at the axial center, a rectangular shape, a circular shape or the like.

“Fourth aspect”
[Solution bag clip]
The fourth aspect of the present invention is a solution bag clip 41 capable of holding a solution bag 4 accommodated in the hydroponic cultivation apparatus 1 as shown in FIGS. 41 includes a first support body 411 having a free end at one end, a connecting portion 412 connected to the other end of the first support body 411, and the other end not connected to the first support body 411 in the connecting portion 412. A second support body 413 to be connected, the first support body 411, the connecting portion 412 and the second support body 413 form the same surface, and the second support body 413 is connected to the first support body 411 and the second support body 413. The second opening 415 has a second opening 415 in a direction different from the first opening 414 in the gap formed between the two supports 413 on the same plane. Thereby, even if the plant growth plate 3 moves in the vertical direction along with the change in the water level, the solution bag clip 41 suppresses the movement and displacement of the solution bag 4, thereby facilitating water management in hydroponics. Moreover, the dripping etc. of the solution bag 4 can also be prevented, and also the aesthetics of the hydroponic cultivation apparatus 1 can be made favorable. Moreover, since the solution bag clip 41 can prevent the solution bag 4 and the lid 40 of the solution bag 4 from being twisted, natural light or the like is incident between the plant growing plate 3 and the solution bag clip 41, By appropriately holding the solution bag 4 so that no algae are generated, natural light or the like can be prevented from entering, and algae can be hardly generated in the solution.

  It is preferable that the 1st support body 411 is a substantially linear rod-shaped member. The second support 413 may have a loop shape, and may have a substantially triangular shape, a substantially rectangular shape, a rounded rectangular shape, or the like, and a loop shape having a rod-like portion 413 (a) substantially parallel to the first support 411. Preferably there is. In addition, the longitudinal dimension of the first support 411 is preferably longer than the longitudinal dimension of the second support 413, and the second support 413 is a rod-like portion 413 (parallel to the first support 411). When it has a), it is preferable that it is longer than the dimension of the rod-shaped part 413 (a).

  The first opening 414 in the gap formed on the same plane between the first support 411 and the second support 413 is preferably not less than 5 cm and not more than 7.5 cm, and the size of the gap and the first opening The dimensions of 414 are preferably substantially the same. Moreover, it is preferable that the dimension of the 2nd opening part 415 is 4 cm or more and 5.5 cm or less. Moreover, it is preferable to provide the 1st opening part 414 and the 2nd opening part 415 in the position orthogonal on the same surface. In addition, when the second support 413 has a rod-like portion 413 (a) that is substantially parallel to the first support 411, the second opening 415 is arranged at a position that divides the rod-like portion 413 (a) approximately equally. It may be arranged, and may be arranged in the position more distal than the 1st opening 414.

“Fifth aspect”
[Hall driver]
5th aspect of invention is the hole saw 7 which forms the through-hole 30 which accommodates the root fixing holder 32 in the plant growth board 3 used for the hydroponic cultivation apparatus 1, Comprising: In the hole saw driver 70 and the hole saw driver 70, A hole saw blade 71 that is detachably connected. The hole saw driver 70 is positioned at the base of the base 72, the center drill 73 that is fixed in a direction parallel to the axial direction, and a base. The hole saw driver 70 includes a step portion 74 that is convex with respect to the portion 72 and that has at least two steps arranged in a stepwise manner concentrically with the base portion 72. Alternatively, the hole saw blade 71 having a different inner diameter at each step 74 can be attached and detached. Thereby, not only can the through hole 30 when the root fixing holder 32 is accommodated in the plant growth plate 3 be easily formed manually, but the fixing auxiliary material 37 according to the third aspect of the present invention can be manually formed. It can be formed easily.

  Here, the size of the root stock of seedlings of plants such as vegetables does not vary greatly depending on the type of plant until the start of the main leaf, but the size of the root stock after the start of the main leaf is different for each plant Different. On the other hand, in order to transplant a plant seedling grown on the plant growth plate 3, it is necessary to provide through holes 30 at appropriate intervals in accordance with the size of the root stock so as not to disturb the growth of the plant. There is. According to the hole saw 7 of the present invention, since the through holes 30 can be provided at appropriate intervals according to the size of the plant root stock, can do.

  The diameter of the stepped portion 74 and the diameter of the hole saw blade 71 can be appropriately selected according to the diameter of the through hole 30 provided in the plant growing plate 3. The hole saw driver 70 and the hole saw blade 71 may be detachably connected, and may be a latch mechanism such as a latch bottle, for example. Further, the base portion 72 and the stepped portion 74 may be substantially cylindrical.

  Hereinafter, the present invention will be described in detail with reference to examples. In addition, this invention is not limited to the Example shown below at all.

<Example 1>
Example 1 was a hydroponic cultivation apparatus in which a planter made of expanded polystyrene was a rectangular box shape having a length of 25 cm, a width of 65 cm, a height of 110 cm, and a thickness of 1.5 cm. As for the plant growth plate, expanded polystyrene (American distributor Joyfull Honda (trade name: Silverback)) with an aluminum foil on the upper surface and a plastic film on the lower surface is 21 cm long, 61 cm wide, and thick. A rectangular column having a diameter of 1.5 cm and a substantially cylindrical through-hole with a diameter of 4 cm are provided in five locations by punching the plant growth plate, and the four through-holes are formed using punched holes. A stopper was provided, and a root fixing holder was provided in the remaining through-hole.The root fixing holder was provided with a flange portion having an outer diameter of 5 cm and an inner edge of 4 cm in diameter, and a root integrally formed with the flange portion. The legs of the fixed holder have three sets of root fixed legs with a vertical dimension from the inner edge, one of which is 4.5 cm and the other of which is 3.5 cm. Part The shape of the root fixing leg formed is L-shaped, and a 0.5 cm foot is provided in the direction of the center of the through hole. A fixing auxiliary material made of foamed polyurethane with a length of 1 cm, a width of 10 cm, and a height of 1.5 cm was provided between the planter and the plant growth plate, and a solution bag made of silver polyethylene having a thickness of 0.02 mm. The outer dimensions of the container were 22.5 cm in length, 62.5 cm in width, and 22 cm in height, and liquid fertilizer (trade name: Hyponica) manufactured by Kyowa Co., Ltd. was used.

  According to Example 1, the root fixing holder can appropriately hold the root of the plant, and in the planter where the liquid fertilizer is filled, the plant growth plate is vertically aligned with the change in the water level even when the liquid level is lowered. Therefore, it is possible to obtain a hydroponic cultivation apparatus that facilitates water management. In addition, the lid portion of the solution bag has a function similar to a mulching sheet in outdoor cultivation, so that algae can be prevented from breeding in the liquid manure.

<Example 2>
In Example 2, with respect to the hydroponic cultivation apparatus of Example 1, rectangular support holes having a length of 1 cm and a width of 1 cm were provided at the four corners of the plant growth plate. Furthermore, using Ube Eximo Co., Ltd. Dunpole (registered trademark) as a support, two 150cm support posts intersect each other, and the tip is accommodated between the solution bag and the planter at the corner between the inner bottom and the outer wall of the planter. Arranged to be. And in the part which mutually met, two acute angle parts were tied with the string of polypropylene, and the front-end | tip protector which consists of polypropylene was provided in the front-end | tip of a support | pillar. The planter in which the support is stored is stored in a storage bag, and the storage bag made of polyethylene is a Chinese insect repellent net (trade name: insect repellent net with silver thread), which is 80 cm long, 90 cm wide, and 0.02 mm thick. In the upper part, an opening of 90 cm in width was provided.

  According to the second embodiment, the storage bag can prevent the storage bag from being blown by strong wind, can prevent insects and birds from approaching the plant, and can further add liquid fertilizer from the opening. It is possible to obtain a hydroponic cultivation apparatus that can harvest vegetables and perform ventilation.

DESCRIPTION OF SYMBOLS 1 Hydroponic cultivation apparatus 2 Planter 3 Plant growth board 4 Solution bag 5 Strut 6 Storage bag 7 Hole saw 21 Recess 30 Through hole 31 Through plug 32 Root fixing holder 33 Brim part 331 Locking part 34 Root fixing leg part 35 Leg part 36 Feet Portion 36a Lower foot portion 36b Middle foot portion 37 Fixing auxiliary material 371 Stem fixing hole 372 Cut 373 Recess slit 38 Strut hole 39 Stem receiving tube 391 Hinge mechanism 392 Lock mechanism 40 Lid portion 41 Solution bag clip 411 First support body 412 Connecting portion 413 2nd support body 413 (a) Rod-like part 414 1st opening part 415 2nd opening part 50 Strut fixing string 51 Tip protection tool 60 Opening part 70 Hall driver 71 Hole saw blade 72 Base part 73 Center drill 74 Step part

Claims (13)

A hydroponic cultivation apparatus comprising a box-shaped planter and a plant growing plate housed inside the planter,
The plant growing plate is
A through hole, a through plug that plugs the through hole, a root fixing holder that is accommodated in the through hole, and a fixing auxiliary material that is a sponge-like elastic body that is accommodated in the root fixing holder,
The root fixing holder is
A collar portion having an inner edge substantially the same size as the inner edge of the upper surface of the through hole in the plant growth plate, and an outer edge larger than the inner edge of the upper surface of the through hole;
A set of leg portions facing each other in the vertical direction from the inner edge of the collar portion, and three root fixed leg portions arranged at equal intervals on the inner edge of the collar portion,
The legs are
At the lower end, provided with a foot that bends in the center direction of the through hole,
In each pair of the legs facing each other, the dimension from the upper end to the lower end of one leg is equal to or less than the dimension from the upper end to the lower end of the other leg, and the vertical of the through hole Hydroponic cultivation apparatus characterized by being at least twice the size of the direction. The plant growing plate is
Made of expanded polystyrene or expanded polyethylene,
The vertical dimension is 1.5 cm or more and 2.0 cm or less,
Aluminum foil is stuck on the top surface,
The hydroponic cultivation apparatus according to claim 1, wherein a plastic film is attached to the lower surface. A solution bag accommodated between the inside of the planter and the plant growth plate;
The solution bag is
Made of polyethylene or polypropylene,
The thickness is 0.01 mm or more and 0.03 mm or less,
The color is silver or black,
The height when the planter is housed inside the planter without a gap is higher than the height of the inner wall of the planter by 5 cm or more, and the portion higher than the inner wall of the planter is folded so as to cover the upper surface of the plant growing plate. The hydroponic cultivation apparatus according to claim 1, wherein the lid is arranged. Two struts accommodated between the inside of the planter and the solution bag, and a storage bag for accommodating the planter and the struts,
The planter is
The inner bottom is rectangular,
The plant growth plate has strut holes for passing the struts at four corners,
The column is
Arranged in an arch on the diagonal of the inner bottom of the planter,
In the part where the struts cross each other, it is provided with a strut fixing string that binds two acute angle parts,
The containing bag is
The hydroponic cultivation apparatus according to claim 3, which is a bag made of cold koji or plastic.   The hydroponic cultivation apparatus according to any one of claims 1 to 4, comprising an air pump, a photovoltaic power generation panel or a rechargeable battery, and a timer. A root fixing holder for fixing the root of a plant,
A flange having an inner edge and an outer edge larger than the inner edge;
A set of leg portions facing each other in the vertical direction from the inner edge of the collar portion, and three root fixing legs arranged at equal intervals on the inner edge of the collar portion,
The root fixing leg is provided with a foot that bends in the center direction of the root fixing holder at the lower end.   Each of the root fixing legs of each pair facing each other is characterized in that the dimension from the upper end to the lower end of one root fixing leg is equal to or less than the dimension from the upper end to the lower end of the other root fixing leg. The root fixing holder according to claim 6. Each set of root fixing legs facing each other has a lower end foot part which is the foot part bent at the lower end in the central direction of the root fixing holder,
The root fixing holder according to claim 6 or 7, further comprising: an intermediate foot portion that is positioned on an upper end side with respect to the lower end foot portion and bends in a center direction of the root fixing holder. The root fixing holder includes a stem accommodating cylinder that can accommodate a plant stem extending in a vertical direction from an inner edge of the collar portion between the collar portion of the root fixing holder and the root fixing leg portion. ,
The stem accommodating cylinder is divided into two in the vertical direction so that the root fixing holder can be opened and closed in a direction perpendicular to the vertical direction via a hinge mechanism,
The root fixing holder can accommodate a plant stem from a direction perpendicular to a vertical direction in an open position, and can lock the root fixing holder by a lock mechanism in a closed position. The root fixing holder according to any one of 6 to 8. A fixing auxiliary material that is housed in a root fixing holder that fixes a plant root and can fix a plant stem,
The fixing auxiliary material has an aluminum foil attached to the upper surface in the vertical direction, a plastic film attached to the lower surface in the vertical direction, and a substantially cylindrical shape.
The fixing auxiliary material is located at the axial center and penetrates the fixing auxiliary material in a direction parallel to the axial direction, a cut extending radially from the axial center on the vertical upper surface, and an outer periphery from the axial center And a recess slit that forms a recess in a direction parallel to the axis. The fixing auxiliary material is made of expanded polystyrene or expanded polyethylene, has a vertical dimension of 1.5 cm to 2.0 cm, and a diameter of 2.0 cm to 4.0 cm.
The fixing auxiliary material according to claim 10, wherein the cut is a cross-shaped cut, and a dimension from an axial center of each cut is 0.5 cm or more and 1.4 cm or less. A solution bag clip capable of holding a solution bag accommodated in a hydroponic cultivation apparatus,
The solution bag clip includes a first support having a free end at one end, a connecting portion connected to the other end of the first support, and the other end not connected to the first support in the connecting portion. A second support connected to
The first support, the connecting portion, and the second support form the same surface,
The second support has a loop shape having a second opening in a direction different from the first opening of the gap formed on the same plane between the first support and the second support. Features a solution bag clip. A hole saw that forms a through hole that accommodates a root fixing holder on a plant growth plate used in a hydroponic cultivation apparatus,
A hole saw driver and a hole saw blade removably connected to the hole saw driver;
The hole saw driver has a base part, a center drill positioned at the axis of the base part and fixed in a direction parallel to the axial direction, and a convex shape with respect to the base part, and at least two or more stages are A step portion arranged in a stepwise manner concentrically with respect to the base portion,
The hole saw driver is capable of attaching and detaching a hole saw blade having different inner diameters in the base portion and the step portion or each step portion.

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