JP3902630B2 - Nursery pot and hydroponics equipment - Google Patents

Description

  The present invention relates to a seedling pot used for hydroponics and a hydroponics apparatus using the seedling pot.

  Conventionally, as a seedling pot used for hydroponics, for example, in Patent Document 1, as shown in FIG. 8 (a), it is attached to a cultivation tank 3 capable of storing a culture solution 4 (hereinafter referred to as a nutrient solution). A seedling pot 10A supported by a panel 5 that is a lid to be manufactured is described. Alternatively, Patent Document 2 describes a seedling pot 10B supported by a float body 6 that floats on a nutrient solution 4 stored in a cultivation tank 3, as shown in FIG. 8 (b).

  These seedling pots 10A and 10B are for holding the culture medium 2 supporting the plant in a predetermined position. The structure for holding the culture medium 2 is basically the same, but the support panel 5 and the float are the same. Only the structure supported by the body 6 is different.

  That is, the seedling pots 10A and 10B have a peripheral wall 101 formed in a tapered shape that expands toward the upper side, and a bottom wall 102 that is connected to the lower end of the peripheral wall 101. The culture medium 2 that supports the plant is loaded into the enclosed space so that the culture medium 2 is held on the peripheral wall 101.

  As the structure in which the seedling pot 10A is supported by the panel 5, the panel 5 is an opening having a size that allows the peripheral wall 101 of the seedling pot 10A to be fitted in a predetermined position. While a through-opening 51 is provided, an upper end portion of the peripheral wall 101 is provided with a flange 103 that extends outward from the upper end portion and can be placed on the peripheral edge of the opening 51. By placing the eaves part 103 on the peripheral edge of the opening of the panel 5, the seedling pot 10 </ b> A is supported by the panel 5 while the lower part of the peripheral wall 101 is immersed in the nutrient solution 4.

  On the other hand, as a structure in which the seedling pot 10B is supported by the float body 6, the float body 6 has an opening having a size that allows only the lower part of the peripheral wall 101 of the seedling pot 10B to be fitted into a predetermined position. An opening 61 penetrating the float body 6 in the vertical direction is provided, and when the lower portion of the peripheral wall 101 is fitted into the opening 61, a predetermined portion of the peripheral wall 101 is placed on the peripheral edge of the opening of the float body 6. As a result, the seedling pot 10B is supported by the float body 6 with the lower portion of the peripheral wall 101 immersed in the nutrient solution 4.

Further, as shown in FIG. 9, a plurality of windows 104 are respectively formed on the peripheral wall 101 and the bottom wall 102 of the seedling pots 10 </ b> A and 10 </ b> B, and the inside and outside of the seedling pots 10 </ b> A and 10 </ b> B are formed through these windows 104. Distribution of air and nutrient solution is possible.
JP 2003-265057 A JP 2003-274775 A

  In the seedling pots 10A and 10B described in each of the above-mentioned patent documents, the seedling pots 10A and 10B are supported by the support, and on the lower side of the upper surface of the support, the plurality of windows 104 are provided. Of these, air can be circulated inside and outside the seedling pots 10A and 10B only by the window 104 located between the peripheral edge portions of the openings 51 and 61 and the upper end portion of the culture medium 2. That is, the light from above only enters the space below the upper surface of the support and outside the seedling pots 10A and 10B through the window 104 located between the peripheral edge of the opening and the upper end of the culture medium 2. And air is not supplied.

  However, since the peripheral wall 101 is only slightly inclined with respect to the vertical direction, the opening peripheral edge and the upper end of the culture medium 2 are located in a space below the upper surface of the support and outside the seedling pots 10A and 10B. The amount of light supplied from above through the window 104 located between the two is extremely small.

  In particular, when the float body 6 is used as a support, the gap between the outer peripheral surface of the peripheral wall 101 and the inner peripheral surface of the opening 61 is extremely small. The window 104 positioned between them is almost entirely blocked by the inner peripheral surface of the opening 61, and the air flow through the window 104 is obstructed.

  Thus, if the amount of light and air supplied to the space below the upper surface of the support and outside the seedling pots 10A, 10B is significantly limited, Fusarium fungi that rot the roots of plants, etc. Therefore, it is desirable to supply more light and air to the space.

  Therefore, by further reducing the inclination angle of the peripheral wall 101 with respect to the horizontal plane, the amount of light passing through the window 104 is increased, and the outer peripheral surface of the peripheral wall 101 and the inner periphery of the opening 61 when the float body 6 is used. It is conceivable to ensure a good air flow through the window 104 by enlarging the gap between the surfaces.

  However, in this case, in order to prevent the plant from collapsing with the culture medium 2 when the plant grows, the outer peripheral edge of the upper surface of the culture medium 2 is stretched outwardly more than the outer peripheral edge of the lower surface. It is necessary to incline the outer peripheral surface of the culture medium 2 in accordance with the shape of the peripheral wall 101, but the portion of the culture medium 2 that protrudes outward from the outer peripheral edge portion of the lower surface is in contact with the inner peripheral surface of the peripheral wall 101. In order to prevent the plant from falling, it is useless from the viewpoint of saving material to make the culture medium 2 in such a shape.

  In view of such circumstances, the present invention can prevent the plant from falling over when growing, while using a medium extending in the vertical direction with a substantially constant cross-sectional shape, and is a space below the upper surface of the support. An object of the present invention is to allow more light and air to be supplied to a space outside the nursery pot through a window positioned between the peripheral edge of the opening and the upper end of the culture medium.

  In order to achieve the above-mentioned object, the seedling pot of the present invention is fitted into an opening provided in a support that covers the surface of the nutrient solution, and is supported by the support in a state where the lower part is immersed in the nutrient solution. A seedling pot for hydroponics, a contact portion where a relative position with respect to the support body is determined by contacting the opening peripheral edge portion of the support body, and a position reserved inward from the contact section And a medium holding part for holding the medium by being loaded with a medium supporting a plant in a space surrounded by the peripheral wall, and the upper end of the peripheral wall of the medium holding part. A connecting portion connecting the upper end portion of the peripheral wall and the abutting portion, and having a plurality of windows in each of the peripheral wall and the connecting portion; The abutting portion is in contact with the opening peripheral edge of the support. In this state, at least the lower part of the peripheral wall is immersed in the nutrient solution, and light is transmitted to the space between the connection part and the liquid surface of the nutrient solution located below the connection part through the window formed in the connection part. It is configured to be supplied with air.

  According to this configuration, since the culture medium holding portion has a peripheral wall extending in a substantially vertical direction, when a plant grows if a medium extending in the vertical direction with a substantially constant cross-sectional shape is loaded into the space surrounded by the peripheral wall, Can prevent falling. Further, since the connecting portion that connects the contact portion that contacts the opening peripheral edge of the support and the upper end portion of the peripheral wall extends outward from the upper end portion of the peripheral wall at an angle closer to the horizontal than the peripheral wall, More light and air can be supplied to the space below the connecting portion from above through a plurality of windows formed in the connecting portion.

  The seedling pot further includes a collar portion that spreads outward from the contact portion and can be placed on the opening peripheral edge portion of the support, and the connecting portion includes an inner end portion of the collar portion and an upper end of the peripheral wall. It is preferable that the contact part is comprised by the boundary part of the said collar part and the said connection part.

  According to this configuration, even if the seedling pot is fitted to the opening of the support body in a tilted posture, the upper part of the contact part is suppressed from entering the opening by the collar part, and the contact part is reliably The seedling pot comes into contact with the peripheral edge of the opening and stands upright naturally.

  Moreover, it is preferable that the said connection part has comprised the shape which expands, so that it goes upwards.

  If it is a connection part of such a shape, since the said culture medium is guided to the said connection part when inserting a culture medium in the space enclosed by the said surrounding wall, it can make it easy to load a culture medium in the said space.

  Moreover, while the hydroponics apparatus of this invention is equipped with the seedling pot of any one of Claims 1-3, the cultivation tank opened upwards which can store a nutrient solution, and the said seedling pot A panel that is a support to be supported and is attached to the cultivation tank so as to close the opening of the cultivation tank, and the panel has an opening into which the medium holding part and the connection part of the seedling pot can be fitted. It is provided, and the contact part of the seedling pot can be brought into contact with the peripheral part of the opening in a state where the culture medium holding part and the connecting part of the seedling pot are fitted in the opening. Is.

  Even when using a panel attached to the cultivation tank as a support in this way, the peripheral wall of the culture medium holding part of the seedling pot is kept behind the contact part of the seedling pot, so the contact part is When in contact with the peripheral edge of the opening of the panel, a connecting portion is interposed between the peripheral edge of the opening and the peripheral wall over the entire periphery of the peripheral wall in plan view, and a window formed in the connecting portion. Through this, more light and air can be supplied to the space outside the peripheral wall from above.

In addition, when the abutment portion of the seedling pot abuts on the peripheral edge portion of the opening, a part of the peripheral edge portion of the panel projects outward from the outline of the seedling pot in plan view. It is preferable to be formed in such a shape.

With such configuration, the vent opening the space beneath the panel by the area enclosed by the part of the opening edge projecting outwardly from the contour of the contour Toko of seedling pots vertically to above the seedling pots Therefore, more light and air can be supplied to the space below the panel through the vent.

Further, the contour of the seedling pot has a substantially square shape in plan view, the opening of the panel has a substantially circular shape in plan view, and the arc-shaped portion of the peripheral edge of the opening is the seedling pot. It is preferable that it is comprised so that it may protrude outside the outline of this .

  If it is such a shape, the said effect can be acquired with a simple shape.

  Or while the hydroponics apparatus of this invention is equipped with the seedling pot of any one of Claims 1-3, the cultivation tank opened upwards which can store a nutrient solution, and the said seedling pot A float body which is a support body to be supported and floats in the nutrient solution stored in the cultivation tank, and the depth dimension of the float body is larger than the vertical dimension of the connecting portion in the seedling pot The float body is provided with an opening into which the medium holding part and the connection part of the seedling pot can be fitted, and this opening is fitted with the medium holding part and the connection part of the seedling pot in the opening. In the state where the contact portion of the seedling pot is in contact with the peripheral edge of the opening, there is an inner peripheral surface that faces the peripheral wall of the culture medium holding portion and forms a predetermined gap with the peripheral wall. Specially It is an.

  Thus, even when a float body having an opening having an inner peripheral surface facing the peripheral wall of the seedling pot is used as a support, the peripheral wall of the culture medium holding part of the seedling pot is more than the contact part of the seedling pot. Since the contact portion is in contact with the peripheral edge of the opening of the float body, a predetermined gap is secured between the peripheral wall and the inner peripheral surface of the opening facing the peripheral wall. More light and air than before can be supplied from above through a window formed in the connecting portion of the seedling pot in this gap.

  As described above, according to the present invention, more light and air can be supplied around the seedling pot to prevent plant root rot and the like.

  Hereinafter, the best mode for carrying out the present invention will be described in detail with reference to the drawings.

  As shown in FIG.1 and FIG.4, the seedling pot 1 which concerns on one Embodiment of this invention is common to the hydroponic cultivation apparatus 9A using the float body 6, and the hydroponic cultivation apparatus 9B using the panel 5. FIG. It is what is used.

  First, a hydroponic cultivation apparatus 9A using the float body 6 will be described.

  The hydroponic cultivation apparatus 9 </ b> A includes a cultivation tank 3 capable of storing a nutrient solution 4 in addition to the plurality of seedling pots 1 and the float body 6. Although not shown in the drawing, the cultivation tank 3 has a substantially rectangular shape extending in a specific direction in a plan view and is opened upward, and the float body 6 can be inserted into the cultivation tank 3 from above. ing.

  The float body 6 extends along the width direction orthogonal to the longitudinal direction of the cultivation tank 3 and has a substantially rectangular parallelepiped shape that is flat in the horizontal direction, and its length dimension is in the width direction of the cultivation tank 3. It is set slightly smaller than the dimension between the inner side surfaces. And this float body 6 is the state which plugged up the opening of the said cultivation tank 3 over the width direction by fitting in the attitude | position orthogonal to the longitudinal direction of the said cultivation tank 3 in the said cultivation tank 3 It floats on the nutrient solution 4. In other words, the liquid surface of the nutrient solution 4 stored in the cultivation tank 3 is covered with the float body 6.

  The float body 6 supports the seedling pots 1 arranged along the longitudinal direction of the float body 6 in a state where the lower part of the seedling pots 1 is immersed in the nutrient solution 4. The float body 6 is provided with an opening 61 into which the lower portion of each nursery pot 1 in the arrayed state can be fitted together. The opening 61 extends along the longitudinal direction of the float body 6 in plan view and penetrates the float body 6 in the vertical direction, and the liquid level of the nutrient solution 4 is opened upward from the opening 61. It is like that. And the lower part of each said seedling pot 1 of the said arrangement | sequence state is engage | inserted in this opening 61, and the contact part 14 of each seedling pot 1 mentioned later contact | abuts the peripheral part 62 of the opening 61, and each seedling pot 61 Each seedling pot 1 is supported by the float body 6 with its lower part immersed in the nutrient solution 4.

  Each of the seedling pots 1 is for holding the medium 2 supporting the plant in a state of being immersed in the nutrient solution 4, and is formed integrally with a synthetic resin or the like, as shown in FIG. The cross-sectional shape remains a substantially square shape and forms a shape that spreads outward as it goes upward.

  These seedling pots 1 include a culture medium holding part 11 that fits into the opening 61 of the float body 6 and a heel part 12 that is placed on the upper surface 63 of the float body 6, and the heel part 12. And a connecting part 13 that connects the culture medium holding part 11 to each other. In addition, the dimension of the perpendicular direction which match | combined the culture medium holding part 11 and the connection part 13 in the seedling pot 1 is set smaller than the depth dimension of the said float body 6 (refer FIG. 3).

  The flange 12 has a size that can be placed on the upper surface 63 of the float body 6 across the opening 61 in the width direction orthogonal to the longitudinal direction of the opening 61, and is substantially in plan view extending in a substantially vertical direction. It has a square cylindrical shape. The distance between the inner side surfaces 12 b of the facing portions of the flange 12 is set to be smaller than the distance between the inner peripheral surfaces 61 a of the opening 61 in the width direction of the opening 61. That is, when the flange portion 12 is placed on the upper surface 63 of the float body 6, the inner end portion of the flange portion 12 protrudes inward from the inner peripheral surface 61 a of the opening 61.

  The culture medium holding part 11 has a substantially square cross-sectional shape that is slightly smaller than the collar part 12 and extends in a substantially vertical direction, and has a substantially square cylindrical peripheral wall 11a and a substantially square plate that is connected to the lower end of the peripheral wall 11a. The medium 2 is held by loading the medium 2 into a space surrounded by the peripheral wall 11a.

  The distance between the outer surfaces 11d of the facing portions of the peripheral wall 11a is set to be smaller than the distance between the inner surfaces 12b of the facing portions of the flange portion 12, and the distance between the outer surface 11d of the peripheral wall 11a and the A gap is formed between the inner surface 12b of the flange 12 and the entire circumference of the peripheral wall 11a in plan view (see FIG. 2A).

  A plurality of windows 11c are formed in the peripheral wall 11a and the bottom wall 11b, respectively. These windows 11c supply the nutrient solution 4 to the culture medium 2 loaded in the space surrounded by the peripheral wall 11a through the window 11c, or when the plant supported by the culture medium 2 grows, the roots of the plants become the windows. 11c for projecting to the outside of the seedling pot 1, and each window 11c has a rectangular shape and is arranged in a matrix, and the total area of each window 11c is It is configured to ensure a large amount.

  The connecting portion 13 has a taper shape that expands outward from the upper end portion of the peripheral wall 11a so as to extend upward so as to connect to the inner end portion of the lower surface 12a of the flange portion 12. The distance between the upper ends of the outer side surfaces 13b of the connecting portions 13 facing each other is set so as to substantially match the distance between the inner peripheral surfaces 61a of the openings 61 in the width direction of the openings 61. Yes. As a result, the entire connecting portion 13 can be fitted into the opening 61, the connecting portion 13 is fitted into the opening 61, and the flange portion 12 is placed on the upper surface 63 of the float body 6. When this is done, the boundary portion between the outer side surface 13b of the connecting portion 13 and the lower surface 12a of the heel portion 12 abuts on the opening peripheral edge portion 62, and the relative position of the seedling pot 1 with respect to the float body 6 is determined. It is like that. That is, the boundary portion between the outer side surface 13b of the connecting portion 13 and the lower surface 12a of the flange portion 12 constitutes the contact portion 14 according to the present invention.

  The connecting portion 13 is formed with a plurality of windows 13a. These windows 13a are arranged in a horizontal direction on each wall surface of the connecting portion 13 inclined in different directions, and the windows 13a located at both ends of each wall surface of the connecting portion 13 have a trapezoidal shape. The window 13a between them has a rectangular shape, and is configured so as to ensure a large total area of each window 13a, similar to the window 11c. Further, since these windows 13a are formed so as to reach the upper end of the connecting portion 13, the contact portions 14 are interspersed between the windows 13a.

  In order to use the seedling pot 1 described above, first, the culture medium 2 is loaded into the space surrounded by the peripheral wall 11a, and the culture medium holding unit 11 holds the culture medium 2. Since the peripheral wall 11a extends in a substantially vertical direction, if the rectangular parallelepiped medium 2 having a substantially square cross-sectional shape extending in the vertical direction is loaded into the space surrounded by the peripheral wall 11a, the plant can be prevented from falling when it grows. . In addition, since the connecting portion 13 connected to the upper end portion of the peripheral wall 11a has a tapered shape that expands upward, the medium 2 is inserted into the space surrounded by the peripheral wall 11a. Since the culture medium 2 is guided to the connecting portion 13, the culture medium 2 can be easily loaded into the space.

  A plurality of seedling pots 1 loaded with the culture medium 2 are prepared, and these seedling pots 1 may be sequentially fitted into the openings 61 of the float body 6. Specifically, by fitting the culture medium holding part 11 and the connecting part 13 of each seedling pot 1 into the opening 61, the contact part 14 of each seedling pot 1 comes into contact with the peripheral part 62 of the opening 61, and each seedling is raised. The relative position of the pot 1 with respect to the float body 6 is determined, and each seedling pot 1 is supported by the float body 6 with the lower portion of the peripheral wall 11 a immersed in the nutrient solution 4.

  In the hydroponic cultivation apparatus 9A using such a float body 6, since the lower part of the peripheral wall 11a of the seedling pot 1 can always be immersed in the nutrient solution 4 at a constant depth regardless of the water level of the nutrient solution 4, Although it is more preferable than the hydroponics apparatus 9B using the panel 5 which will be described later, since the inner peripheral surface 61a of the opening 61 of the float body 6 reaches the liquid surface of the nutrient solution 4 from the opening peripheral portion 62, the seedling pot 1 When the abutting portion 14 is brought into contact with the opening peripheral edge portion 62, the peripheral wall 11 a of the culture medium holding portion 11 and the inner peripheral surface 61 a of the opening 61 face each other in the width direction of the opening 61.

  However, in the seedling pot 1 of the present embodiment, the peripheral wall 11a of the culture medium holding part 11 is kept inward by the dimension in the horizontal direction of the connecting part 13 relative to the abutting part 14, and therefore the inner peripheral surface of the peripheral wall 11a and the opening 61 A gap 7 having a dimension that substantially matches the dimension in the horizontal direction of the connecting portion 13 is formed between 61a and 61a. Moreover, since the adjacent seedling pots 1 are arranged with the heel portions 12 in contact with each other between the peripheral walls 11 a of the adjacent seedling pots 1, a gap slightly larger than twice the gap 7 is formed. Is done.

  The connecting portion 13 is formed with a plurality of windows 13a, and as described above, between the outer side surface 11d of the peripheral wall 11a and the inner side surface 12b of the flange portion 12, the peripheral wall 11a has a plan view. Since the gap is formed over the entire circumference, the outer space of the peripheral wall 11a including the gap 7 has the whole circumference more than the seedling pots 10A and 10B shown in FIG. A lot of light and air will be supplied.

  Thus, if the seedling pot 1 of this embodiment is used, even if it is a case where the said seedling pot 1 is supported by the float body 6, more light and air will be given to the space outside the surrounding wall 11a holding the culture medium 2. It can be supplied to prevent plant root rot and the like.

  Next, with reference to FIG.4 and FIG.5, the hydroponic cultivation apparatus 9B using the said panel 5 is demonstrated. This hydroponic cultivation apparatus 9B is different from the hydroponic cultivation apparatus 9A described above in that the support for supporting the seedling pot 1 is changed from the float body 6 to the panel 5.

  The panel 5 is attached to the cultivation tank 3 so as to close the opening of the cultivation tank 3. The panel 5 is provided with a plurality of openings 51 at appropriate positions in which the connection part 13 and the culture medium holding part 11 of the seedling pot 1 can be fitted for each pot.

Specifically, the opening 51 has a substantially circular shape in plan view, and the diameter thereof is set so as to substantially match the diagonal dimension of the substantially square formed by the contact portion 14 of the seedling pot 1. Has been. For this reason, when the connection part 13 and the culture medium holding part 11 of the seedling pot 1 are fitted in the opening 51, the corner part of the contact part 14 comes into contact with the peripheral part 52 of the opening 51 at four points. Thus, the relative position of the seedling pot 1 with respect to the panel 5 is determined, and the seedling pot 1 is supported by the panel 5 with the lower part of the peripheral wall 11a of the medium holding part 11 immersed in the nutrient solution 4. Become. Further, in a state where the contact portion 14 is in contact with the opening peripheral edge portion 52, the panel 5 is surrounded by a region surrounded by the contour formed by the flange portion 12 and the opening peripheral edge portion 52 outside the flange portion 12. The vent holes 51b that open the lower space in the vertical direction to the upper part of the seedling pot 1 are secured in substantially equal sizes in all directions.

  Thus, even when the panel 5 provided with the openings 51 into which the seedling pots 1 are fitted for each pot is used, the plane is not flat when the contact portion 14 is in contact with the peripheral edge 52 of the opening 51. In view, the connecting part 13 is interposed over the entire circumference of the peripheral wall 11a between the opening peripheral part 52 and the peripheral wall 11a, and the connecting part is provided in the space 8 outside the peripheral wall 11a over the entire periphery. Appropriate amounts of light and air can be supplied from above through the window 13 a formed in 13.

  Moreover, since the vent hole 51b is formed in the four directions outside the ridge part 12 of the seedling pot 1, more light and air are supplied to the space below the panel 5 through this vent hole 51b. Can do. When the panel 5 is used, the panel 5 closes the opening of the cultivation tank 3, so that air easily stays in the space below the panel 5, and light hardly enters the space. Therefore, it is conceivable to provide a plurality of vent holes in the panel 5, but if too much light and air are supplied to the space below the panel, there is a risk that propagation of germs and bacteria will become active. However, as in the present embodiment, the heel part 12 of the seedling pot 1 is formed in a substantially square shape in a plan view, and the opening 51 provided in the panel 5 is formed in a substantially circular shape in a plan view. A moderate amount of air and light capable of suppressing the propagation of germs and bacteria can be supplied to the space below 5. This was verified by numerous experiments conducted by the applicant of the present application.

  In addition, the seedling pot of this invention is not limited to embodiment mentioned above, A various change is possible.

  For example, in the above-described embodiment, the form in which the plurality of seedling pots 1 having a substantially square shape in a plan view are fitted into the opening 61 extending in the longitudinal direction of the float body 6 is illustrated. However, as illustrated in FIG. Only one seedling pot 1 ′ formed in a substantially rectangular shape in plan view in accordance with the shape of the opening 61 may be fitted into the opening 61 so that the contact part 14 contacts the entire part 62 over the entire circumference. . Even in this way, more light and air than before can be seen from above through the window 13a of the connecting portion 13 over the entire circumference of the peripheral wall 11a in the gap between the outer surface 11d of the peripheral wall 11a and the inner peripheral surface 61a of the opening 61. Can be supplied.

  Further, a plurality of substantially square openings may be provided in the float body 6 in a plan view in which the seedling pot 1 can be fitted into each pot.

Furthermore, the opening 51 provided in the panel 5 does not need to be substantially circular in a plan view. For example, even if the opening 51 is a substantially octagonal shape in a plan view, the vent 51b is provided outside the heel part 12 of the seedling pot 1. It is possible to form. And when not providing the heel part 12 like the seedling pots 1 and 1 'shown in FIG. 7A described later, the vent 51b has a contour formed at the outer peripheral edge of the seedling pot 1 in a plan view. You may form in the area | region enclosed with the opening peripheral part 52 of the panel 5. FIG.

  The seedling pot 1 does not need to be used in common for the hydroponic cultivation apparatus 9A and the hydroponic cultivation apparatus 9B, and may be a dedicated seedling pot for each of the apparatuses 9A and 9B. In this case, as hydroponic cultivation apparatus 9A, the opening 61 of the float body 6 may be circular in plan view, and the horizontal sectional shape of the seedling pot may be circular according to the circular shape.

  Moreover, in the said embodiment, although the contact part 14 was shown in the boundary part of the lower surface 12a of the collar part 12, and the outer surface 13b of the connection part 13, as shown to Fig.7 (a), While the flange 12 may be omitted, the connecting portion 13 may be extended upward as it is, and the contact portion 14 may be configured by an intermediate portion of the outer surface of the connecting portion 13. In this case, the window 13a can also be extended upward to ensure a larger area of the window 13a. However, in this case, when the seedling pots 1 and 1 'are tilted and fitted into the opening (opening 51 or opening 61) of the support (float body 6 or panel 5), they are supported by the support in that position. Therefore, it is necessary to fit the seedling pots 1, 1 ′ in an upright posture into the opening of the support body, but the contact portion 14 is connected to the lower surface 12 a of the heel portion 12 as in the above embodiment. If it comprises the boundary part with the outer side surface 13b of the part 13, even if it fits into the opening of a support body with the attitude | position which tilted the seedling pots 1 and 1 ', the part above the contact part 14 will be opened by the collar part 12. Since the contact portion 14 is reliably in contact with the opening peripheral edge portion (the opening peripheral edge portion 52 or the opening peripheral edge portion 62) and the seedling pots 1, 1 ′ are in an upright posture naturally. Open seedling pot 1, 1 'support It is possible to shorten the working time of fitting.

  Further, the abutment portion 14 only needs to be positioned relative to the support within a limited range by abutting on the opening peripheral edge portion 62, and the distance at which the abutment portion 14 is spaced apart from the culture medium holding portion 11 is The distance may be set to be smaller than the distance between the peripheral edges of the opening, and the connecting portion 13 may be configured to be fitted in the opening.

  Furthermore, the connection part which concerns on this invention should just spread on the outer side at an angle nearer horizontal than the said surrounding wall 11a from the upper end part of the surrounding wall 11a, for example, as shown in FIG.7 (b), the upper end part of the surrounding wall 11a It spreads outward in the horizontal direction and may be connected to the inner end of the lower surface 12 a of the flange 12.

  Further, the peripheral wall 11a of the seedling pots 1 and 1 'extends substantially in the vertical direction, and it is only necessary to form a predetermined gap with the contact portion 14 in a plan view. The shape may be slightly inclined with respect to the vertical direction. With such a shape, the culture medium 2 can be more easily loaded into the space surrounded by the peripheral wall 11a.

It is a perspective view of the hydroponic cultivation apparatus which made the float body support the seedling pot which concerns on one Embodiment of this invention. (A) is a top view of the said seedling pot, (b) is the partial cross section side view. It is the cross-sectional side view which expanded the principal part of FIG. It is a perspective view of the hydroponic cultivation apparatus which supported the said seedling pot on the panel. It is the cross-sectional side view which expanded the principal part of FIG. (A) is a top view of the seedling pot of a modification, (b) is the side view. (A) (b) is a side view of the seedling pot of a modification. (A) and (b) are the cross-sectional side views of the conventional seedling pot. It is a perspective view of the conventional seedling pot.

Explanation of symbols

1,1 'seedling pot 11 medium holding part 11a peripheral wall 11b bottom wall 11c window 12 ridge part 13 connection part 13a window 14 contact part 2 medium 3 cultivation tank 4 nutrient solution 5 panel 51, 61 opening 52, 62 peripheral part 6 float Body 7,8 Space 9A, 9B Hydroponic cultivation equipment

Claims (7)

A seedling pot for hydroponics that is fitted into an opening provided in a support covering the liquid level of the nutrient solution and supported by the support in a state where the lower part is immersed in the nutrient solution,
A contact portion whose relative position with respect to the support is determined by contacting the peripheral edge of the opening of the support, and a peripheral wall extending in a substantially vertical direction at a position inward of the contact portion. A medium holding part that holds the medium by being loaded with a medium that supports the plant in the space surrounded by, and spread outward from the upper end of the peripheral wall of the medium holding part at an angle closer to the horizontal than the peripheral wall, A connecting portion that connects the upper end portion of the peripheral wall and the contact portion;
A plurality of windows are formed in each of the peripheral wall and the connecting portion, and at least a lower portion of the peripheral wall is immersed in a nutrient solution in a state where the contact portion is in contact with an opening peripheral portion of the support, Raising seedlings characterized in that light and air are supplied to a space between the connecting part and a nutrient solution level located below the connecting part through a window formed in the connecting part. pot.   It further includes a flange that spreads outward from the contact portion and can be placed on the peripheral edge of the opening of the support, and the connecting portion connects the inner end of the flange and the upper end of the peripheral wall. The seedling pot according to claim 1, wherein the contact portion is configured by a boundary portion between the heel portion and the connecting portion.   The seedling pot according to claim 1 or 2, wherein the connecting portion has a shape that expands upward.   While being provided with the seedling pot of any one of Claims 1-3, it is a panel which is a cultivation tank opened upwards which can store a nutrient solution, and a support body which supports the said seedling pot, The said A panel attached to the cultivation tank so as to close the opening of the cultivation tank, and the panel is provided with an opening into which the culture medium holding part and the connection part of the seedling pot can be fitted, and the seedling pot is provided in this opening. The hydroponic cultivation apparatus, wherein the contact portion of the seedling pot can be brought into contact with a peripheral portion of the opening in a state where the culture medium holding portion and the connecting portion are fitted. The opening of the panel is such that when the abutment part of the seedling pot abuts on the peripheral part of the opening, a part of the peripheral part of the opening projects outside the outline of the seedling pot in plan view The hydroponic cultivation apparatus according to claim 4, wherein the hydroponic cultivation apparatus is formed in a shape. The contour of the seedling pot has a substantially square shape in plan view, the opening of the panel has a substantially circular shape in plan view, and the arc-shaped portion of the peripheral edge of the opening is the contour of the seedling pot The hydroponic cultivation apparatus according to claim 5, wherein the hydroponic cultivation apparatus is configured to project outward.   A float body that is provided with the seedling pot according to any one of claims 1 to 3 and that opens upward in which a nutrient solution can be stored, and a support that supports the seedling pot. The float body floats in the nutrient solution stored in the cultivation tank, and the depth dimension of the float body is set larger than the vertical dimension of the connecting portion in the seedling pot, and the float body An opening into which the culture medium holding part and the connection part of the seedling pot can be fitted is provided, and this opening is fitted with the culture medium holding part and the connection part of the seedling pot in the opening so that the contact part of the seedling pot is Hydroponics characterized by having an inner peripheral surface that faces the peripheral wall of the culture medium holding portion in contact with the peripheral edge of the opening and forms a predetermined gap with the peripheral wall apparatus.

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