JP2007189910A - Greening unit and greening system provided with the greening unit - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a greening unit construction elements of which are efficiently transported to aim at improvement in its construction property, and which flexibly corresponds to variety of soil thickness; and to provide a greening system provided with the greening unit. <P>SOLUTION: The greening unit 1 is provided with a box-like water-reserving part 2 having a side wall 2a and a bottom plate 2b, and a planting part 3 set at the upper edge side of the water-reserving part 2 so as to be superimposed on the water-reserving part 2 and charged with the soil. The water-reserving part 2 is formed so that the lower edge side of the side wall 2a joined to the bottom plate 2b is placed at a more inner side than the upper edge side. The planting part 3 is provided with at least one almost-cylindrical side wall part 3a detachably placed at the upper edge side of the water-reserving part 2 and applicable to lamination, and an almost-flat bottom plate part 3b having a through hole, wherein the bottom plate part 3b is detachably supported at the inside of the side wall part 3a and a space 6 partitioned by the side wall 2a and the bottom plate 2b of the water-reserving part 2 and a space 7 charged with the soil are communicated via the through hole. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a greening unit that is laid on an artificial ground such as a rooftop of a building, a terrace, a veranda, or a parking lot and greens the artificial ground, and a greening system including the greening unit.

  Conventionally, planting and planting on artificial ground such as buildings and parking lots has been done for the purpose of alleviating the heat island phenomenon in urban areas, absorbing carbon dioxide in the atmosphere, and creating amenity spaces. .

  In this type of greening system, for example, as disclosed in Patent Document 1, a box-shaped planting portion having a side wall (side wall portion) and a bottom surface (bottom plate portion) and having a substantially square shape in plan view and a top surface opening, and a side wall And a box-shaped water storage section having a bottom surface (bottom plate) having a substantially square shape in plan view and having an opening at the top surface, Some have. In this tree planting system, planting is carried out by planting seeds on artificial soil (soil) filled in the planting part of the tree planting unit or placing cut grass, etc. It is possible to green the artificial ground by laying a plurality of grounds on the artificial ground such as the roof without any gaps. In addition, since this greening system can handle multiple greening units individually, it has the advantages of easy installation and removal, excellent workability, and flexibility in changing layouts. is doing.

Moreover, in the tree planting unit disclosed in Patent Document 1, surplus water that is not retained in the soil out of the water such as rainwater supplied to the soil is discharged into the water storage unit on the bottom surface of the planting unit, and air is circulated. A water and air hole (through hole) is provided to enable this. Further, a plurality of substantially columnar first columnar members are provided so as to protrude upward from the bottom surface of the planting portion, and are projected downward from the bottom surface, and the lower end surface thereof is provided on the bottom surface of the water storage portion. A plurality of substantially columnar second columnar members in contact with each other are provided. Thereby, in this tree planting unit, when surplus water is discharged to the water storage part, the plant planted in the soil can be suitably grown, and when an external force such as a pedestrian's stepping pressure acts from above the planting part Moreover, high support strength and stability are provided by the first columnar member and the second columnar member, and the planting part and the water storage part are prevented from being damaged by the external force.
JP 2004-261016 A

  However, in the above greening unit and greening system, the planting part and the water storage part are each formed in a box shape of approximately the same shape and the same size in a substantially square shape in plan view. While handling is good, when transporting these, it is necessary to stack multiple water storage units and multiple planting units and transport them in a large packing state. It was bad and made workability worse.

  Further, in the above greening unit, the planting part is formed in a box shape of a predetermined size in advance, so it is flexible when, for example, it is desired to increase the thickness of the soil according to changes in the type of plant to be planted, etc. There was a problem of not being able to respond to

  In view of the above circumstances, the present invention aims to improve the workability by efficiently transporting the constituent members of the greening unit and to provide a greening unit that can flexibly cope with changes in soil thickness and a greening system including the greening unit The purpose is to provide.

  In order to achieve the above object, the present invention provides the following means.

  The greening unit of the present invention is provided with a box-shaped water storage section having a side wall and a bottom plate and having an opening on the upper end side, and a plant is provided on the upper end side of the water storage section so as to overlap the water storage section. The water storage unit is formed such that a lower end side of the side wall connected to the bottom plate is arranged on an inner side than the upper end side, and the water storage unit is formed. The portion includes at least one substantially cylindrical side wall portion that is detachably mounted on the upper end side of the water storage portion and can be stacked, and a substantially flat bottom plate portion having a through hole, and the bottom plate portion Installed while being detachably supported on the inside of the side wall, and defined by the side wall and the bottom plate of the water storage unit and the side wall and the bottom plate of the planting unit to contain soil. The space communicates with the through hole.

  In the greening unit of the present invention, it is desirable that the side wall of the water storage portion is provided with a tapered portion that gradually inwards on the lower end side from the upper end side toward the lower end.

  Furthermore, in the greening unit of the present invention, it is more preferable that the side wall portion is formed in a substantially rectangular tube shape and is provided with hinge portions at four corner portions.

  Moreover, in the tree planting unit of the present invention, a partition that divides and divides the space in a plan view from above is installed in the space that houses the soil of the planting unit, and the partition unit More preferably, the plurality of substantially rectangular flat plate-like partition plates are separably engaged with each other through engagement grooves formed in the respective partition plates.

  Furthermore, in the greening unit of the present invention, it is more preferable that the partition plate is provided with a notch portion that communicates the space divided and partitioned by the partition portion.

  In the greening unit of the present invention, it is desirable that a water absorption band for supplying water stored in the water storage part to the soil through the through hole is attached to the bottom plate part.

  Furthermore, the greening system of the present invention is a greening system including the greening unit described above, and a plurality of the greening units contact the side wall portions of the adjacent greening units so that there is no gap in a plan view from above. It is characterized by being laid side by side on artificial ground.

  In the greening unit and the greening system of the present invention, the lower end side connected to the bottom plate of the side wall of the water storage unit is, for example, tapered and arranged on the inner side of the upper end side, so that another water storage unit is provided inside the water storage unit. It is possible to engage the base plate while inserting the bottom plate side. Thereby, when transporting a plurality of water storage units, it is possible to stably stack them while engaging the plurality of water storage units and transport them together in a state where the apparent volume is reduced. Therefore, it is possible to improve the handleability and transport efficiency during transport of the plurality of water storage units, and it is possible to improve the workability.

  Moreover, when the water storage part is formed by arranging the lower end side of the side wall inward, when the plurality of greening units are laid on the artificial ground, the side wall upper end sides of the water storage parts of adjacent greening units are not spaced from each other. In contrast, a gap is defined between the lower ends of the side walls of the adjacent water storage units. And this clearance gap will form the water passage which extends along the parallel arrangement direction of a plurality of greening units on artificial ground, and water such as rain water which accumulates on the artificial ground through this water passage is outside. Can be discharged.

  Furthermore, in the present invention, since the planting part is configured to include a side wall part and a bottom plate part that are detachably mounted on the water storage part and can be stacked, the soil is filled and accommodated in the space of the planting part. When you want to greatly change the layer thickness of the, can be expanded to the space of the planting part by a simple operation of stacking so that other side wall part is stacked on the side wall part installed in the water storage part, It can flexibly respond to changes in soil layer thickness.

  Moreover, in the greening unit and the greening system of this invention, the side wall part of a planting part is formed in a substantially rectangular cylinder shape, and a side wall part is folded by providing the hinge part in the four corner | angular parts, respectively. It becomes possible. As a result, when transporting a plurality of side wall portions, these can be folded and collectively transported efficiently, and at the time of installation, they can be installed back so as to exhibit a predetermined rectangular cylindrical shape. Can be improved.

  Furthermore, in the tree planting unit and the tree planting system of the present invention, by providing a partition section that divides and partitions the space defined by the side wall section and the bottom plate section of the planting section, from above the planting section. Even when an external force such as a pedestrian's stepping pressure is applied, the external force can be received by the partition portion, and high support strength and stability can be imparted to the greening unit. Thereby, it can prevent that a planting part and a water storage part are damaged by external force. In addition, the partition portion is formed by engaging a plurality of substantially rectangular flat plate-like partition plates, that is, the partition portion is formed by assembling a plurality of partition plates. The separated partition plates can be transported together during transportation, and the partition portions can be easily formed and installed by a simple operation of engaging and assembling a plurality of partition plates during installation.

  In addition, the partition plate is provided with a notch for communicating the space divided and partitioned by the partition, so that the roots of plants growing on the soil in the partitioned space and the water supplied to each space can be supplied. It can be made to go back and forth in another space (soil) through this notch. Thereby, it becomes possible to maintain the suitable growth environment of a plant.

  Furthermore, the water absorption zone for supplying the water stored in the water storage part to the soil through the through hole is attached to the bottom plate part of the planting part, so that the water out of the rainwater or irrigation supplied to the soil. The excess water stored in the reservoir without being retained in the soil can be supplied again to the soil through the water absorption zone. Thereby, since rainwater and irrigation can be reused effectively, it is possible to reduce the frequency of irrigation and maintain a suitable growth environment for plants.

  Hereinafter, a greening unit and a greening system according to an embodiment of the present invention will be described with reference to FIGS. The present embodiment relates to a greening unit for laying on an artificial ground such as a rooftop of a building, a veranda, and a parking lot and greening the artificial ground, and a greening system including the greening unit.

  As shown in FIGS. 1 and 2, the greening system A of the present embodiment includes a plurality of greening units 1, and the greening unit 1 of the present embodiment includes rainwater as shown in FIGS. 1 to 4. A water storage panel (water storage unit) 2 for storing surplus water such as water and irrigation, a planting unit 3 for holding unillustrated soil for planting, and a partition unit 4 for supporting external forces such as treading pressure of pedestrians, The water absorption zone 5 for supplying surplus water in the water storage panel 2 to the soil held in the planting part 3 is a main component.

  The water storage panel 2 includes a side wall 2a and a bottom plate 2b, is formed in a box shape having a substantially square shape in plan view, and has an opening 2c with an upper surface opened. The side wall 2a extends in the vertical direction so that the upper end 2d side defining the opening 2c is perpendicular to the bottom plate 2b, whereas the lower end 2e side is connected to the bottom plate 2b from the upper end 2d side. It forms so that it may incline toward the inner side of the water storage panel 2 gradually toward it. Here, in this embodiment, the inclined part formed in the lower end 2e side of the side wall 2a is made into the taper part 2f.

  The planting part 3 is comprised from the side wall part 3a and the baseplate part 3b which were mutually isolate | separated. The side wall 3a is formed in a substantially square cylindrical shape in plan view, and is formed so that the opening area on the upper end 3c side is substantially equal to the opening area of the opening 2c of the water storage panel 2. Further, on the lower end 3d side of the side wall portion 3a, a step portion 3e extending inward in the horizontal direction with a dimension equal to or slightly larger than the thickness dimension of the side wall portion 3a is provided, and the lower end 3d of the side wall portion 3a is provided by this step portion 3e. The side is disposed inside while being parallel to the upper end 3c side. Further, as shown in FIG. 5, the side wall portion 3a having a substantially square shape in plan view is provided with hinge portions 3f at four corners thereof, and the side wall portion 3a can be folded by the hinge portions 3f. Has been.

  On the other hand, as shown in FIGS. 1 to 4, the bottom plate portion 3b of the planting portion 3 is formed in a substantially square flat plate shape in plan view, and the area of the upper surface and the lower surface thereof is the upper end 3c of the side wall portion 3a. It is formed so as to be substantially equal to the opening area on the side. The bottom plate portion 3b is provided with a plurality of drain holes (through holes) 3g penetrating from the upper surface to the lower surface.

  The partition portion 4 of the present embodiment includes two partition plates 4a and 4b having the same shape and the same size formed in a substantially rectangular flat plate shape. The two partition plates 4a and 4b are separably engaged with each other. It is formed to have a cross shape. As shown in FIG. 6, the two partition plates 4 a and 4 b constituting the partition section 4 are respectively provided at the center in the axial direction O1 and O2 extending in the longitudinal direction and from the lower end 4 c parallel to the axial lines O1 and O2 to the upper end. An engaging groove 4e having a rectangular shape in plan view cut out toward the 4d side is provided. The engagement groove 4e has a width substantially equal to the thickness of the partition plates 4a and 4b, and extends from the lower end 4c to the center in the vertical direction. Further, the partition plates 4a and 4b are recessed from the upper end 4d toward the lower end 4c between one end and the center in the direction of the axes O1 and O2, and between the center and the other end in the direction of the axis O1 and O2, respectively, and from the lower end 4c. A pair of notch parts 4f which are dented toward the upper end 4d and which oppose each other in the vertical direction are provided. The two partition plates 4a and 4b formed in this way have their axes O1 and O2 orthogonal to each other through the engaging grooves 4e facing each other while arranging the top and bottom of one partition plate 4b in reverse. They are engaged so as to intersect (cross) to form a cross-shaped partition 4.

  The water absorption zone 5 is formed by forming a fibrous member such as urethane or felt, a capillary member, a porous member such as perlite, Otani stone or barley stone, or the like into a belt shape. As shown in FIGS. 2 to 4, the water absorption band 5 is supported by being inserted through a part of drainage holes 3 g formed in the bottom plate portion 3 b of the planting portion 3, for example, and the lower end side from the bottom plate portion 3 b. It is provided to hang down.

  As shown in FIGS. 1 to 4, the greening unit 1 including the water storage panel 2, the planting part 3, the partition part 4, and the water absorption zone 5 formed as described above is first attached to the upper end 2 d of the water storage panel 2. The side wall portion 3a of the planting portion 3 is detachably engaged with the water storage panel 2 by supporting the surface facing the lower side of the step portion 3e. That is, the side wall 3a of the planting part 3 is installed on the upper end 2d side of the water storage panel 2 so as to overlap in the vertical direction. And the bottom plate part 3b to which the water absorption zone 5 is attached is inserted into the inside of the side wall part 3a installed above the water storage panel 2, and the lower surface of the bottom plate part 3b faces the upper side of the step part 3e of the side wall part 3a. The bottom plate portion 3b is installed in contact with the bottom plate portion 3b. At this time, the bottom plate portion 3b is horizontally disposed, and the space 6 for storing soil between the side wall portion 3a and the bottom plate portion 3b is located above the bottom plate portion 3b, and below the bottom plate portion 3b. A space 7 for storing excess water is defined by the side wall 2a and the bottom plate 2b, and a water absorption band 5 attached to the bottom plate portion 3b is disposed in the space 7 of the water storage panel 2.

  Subsequently, the partition part 4 is inserted into the space 6 defined by the side wall part 3a and the bottom plate part 3b of the planting part 3, and the lower end thereof is supported by the bottom plate part 3b and installed. At this time, one end and the other end of each of the two partition plates 4a and 4b engaged in a cross shape constituting the partition portion 4 are in contact with or in close proximity to the opposing inner surface of the side wall portion 3a. The space 6 of the section 3 is divided into four sections. Moreover, the upper end of the partition part 4 is arrange | positioned on the same horizontal surface as the upper end 3c of the side wall part 3a, or slightly below the upper end 3c of the side wall part 3a. Then, at the stage where the respective members are assembled in this manner, the upper surface is not illustrated in the space 6 divided into four by the partition portion 4 so that the upper surface is located on the substantially same horizontal plane as the upper end 3c of the side wall portion 3a. Planting is carried out by filling the soil, sowing seeds on this soil, placing cut grass, etc., and the greening unit 1 is completed. As shown in FIGS. 1 and 2, a plurality of such greening units 1 are laid side by side on the laying surface T1 of an artificial ground T such as a rooftop of a building, and the soil and planting of each greening unit 1 as necessary. An unillustrated irrigation means for supplying liquid fertilizer and irrigation to the plant is installed to form a greening system A, whereby the construction of the artificial ground T is completed.

  Here, conventionally, when the greening unit 1 is laid on the artificial ground T such as the rooftop of a building, the greening unit 1 in a completed state as described above is not loaded and installed, but each member is loaded. For the first time, the water storage panels 2 are laid side by side and the planting unit 3 is installed on the water storage panel 2, and then the soil is filled and planted, that is, the greening unit 1 is completed locally. At this time, in the conventional greening unit, the water storage part and the planting part are each formed in a rectangular box shape of the same shape and the same size. Therefore, as the number of greening units to be installed increases, the water storage part and the planting part are transported. Efficiency will worsen and workability will deteriorate. Moreover, since the planting part is formed in the shape of a fixed box of a predetermined size in advance, for example, the soil accommodated in the planting part is increased in accordance with changes in the type of plant and the thickness is increased. There was a problem that it was not possible to respond flexibly.

  On the other hand, in the greening unit 1 of the present embodiment, as shown in FIG. 7, since the tapered portion 2 f is provided on the side wall 2 a of the water storage panel 2, another water storage panel 2 is provided inside the water storage panel 2. The plurality of water storage panels 2 can be stably stacked and gathered together by inserting the taper portions 2f. Thereby, in this embodiment, a plurality of water storage panels 2 are piled up while being engaged and stably gathered, the apparent volume is reduced, and the water can be efficiently transported. Moreover, also in the planting part 3, as shown to FIGS. 3-5, the side wall part 3a and the baseplate part 3b are separable, and the side wall part 3a is provided with the hinge part 3f in the corner | angular part, and is folded. Since it is possible, the plurality of side wall portions 3a can be transported together with the apparent volume being reduced. Furthermore, also in the partition part 4, as shown in FIG. 6, it is comprised from the two partition plates 4a and 4b, and it mutually engages and combines through the engagement groove | channel 4e formed in each partition plate 4a and 4b. Since it can be formed in a predetermined shape, the two partition plates 4a and 4b can be transported together in a separated state during transportation. Moreover, in this embodiment, since the two partition plates 4a and 4b are made into the same shape and the same size, it is not necessary to particularly sort them and can be easily combined.

  In the present embodiment, a plurality of water storage panels 2 are arranged side by side on the laying surface T1 of the artificial ground T at the stage where each member constituting the greening unit 1 is efficiently carried into the site. As described above, the side wall portion 3a and the bottom plate portion 3b are attached to each water storage panel 2 to form the planting portion 3, and the partition portion 4 in which the two partition plates 4a and 4b are combined in a cross shape is attached and greened. Assemble unit 1. Further, the construction of the greening system A of the present embodiment is completed by filling the space 6 of the planting part 3 with soil, planting the soil, and laying watering means as necessary.

  Moreover, in the tree planting unit 1 of this embodiment, when it is desired to increase the thickness of the soil accommodated in the planting part 3 according to the type of plant, as shown in FIG. 8, the upper end 3c of the existing side wall part 3a is provided. The other side walls 3a are stacked so as to be stacked on top of the existing side wall 3a by engaging the surfaces of the other side walls 3a facing the lower side of the stepped portion 3e while contacting each other. To do. Thereby, the space 6 of the planting part 3 can be easily expanded upward, and the soil of a desired thickness is obtained by filling the space 6 defined by the newly installed other side wall part 3a with soil. Can be formed.

  Further, in this embodiment, when rainwater (or irrigation from the irrigation means) is supplied to the laid greening unit 1, the rainwater penetrates into the soil, and a part of the rainwater is retained in the soil and used for the growth of the plant. Is done. On the other hand, surplus water that has passed downward without being retained by the soil flows down through the drain holes 3g of the bottom plate portion 3b and is stored in the space 7 of the water storage panel 2. The surplus water stored in this way is sucked up by the water absorption zone 5 at the time of fine weather, for example, and supplied again to the soil located above to be used for plant growth. Therefore, in the tree planting unit 1 of the present embodiment, rainwater or surplus water can be stored and supplied to the upper soil again, so that the frequency of watering by the watering means can be reduced.

  Furthermore, as shown in FIG. 2, when a plurality of greening units 1 are arranged on the artificial ground T so that the outer surface of the side wall 3 a extending in the vertical direction on the upper end 3 a side is in surface contact, the adjacent greening units 1 A water passage 8 having a triangular cross section is defined by the tapered portions 2f of the opposite side walls 2a and the laying surface T1 of the artificial ground T. By defining this water passage 8, in the greening system A of the present embodiment, rainwater accumulated on the artificial ground T can be discharged through the water passage 8.

  Further, in the present embodiment, since the partition portion 4 is provided in the soil, even when an external force such as a pedestrian's stepping pressure acts on the greening unit 1 after the greening system A is constructed, External force can be received and supported by the partition 4. Thereby, it can prevent that external force acts on the side wall part 3a of the planting part 3, for example, and can prevent the greening unit 1 from being damaged. Moreover, at this time, since the soil is filled in the space 6 divided into the four planting parts 3 by the partition part 4, the soil to which the external force has acted is not biased. It is also possible to hold the soil in a stable state.

  Furthermore, even when the soil is divided into four parts by the partition part 4, the roots of the planted plants and the irrigated water are divided through the plurality of notches 4f provided in the partition plates 4a and 4b. You can go back and forth between them. Thereby, it becomes possible to maintain the growth of a plant in a suitable state.

  Therefore, according to the greening unit 1 and the greening system A of the present embodiment, it is possible to efficiently transport the constituent members of the greening unit 1 in a separated state to improve the workability, and to improve the soil thickness. It is possible to respond flexibly to changes. Moreover, since the greening unit 1 is formed by assembling the respective simple members and the assembly is easy, the cost can be reduced. Further, in the greening system A of the present embodiment, since a plurality of the above greening units 1 are laid, for example, when a plant planted in each greening unit 1 has withered, the individual The greening unit 1 can be exchanged individually to cope with it. Also, when maintaining a greened building or the like, the greening unit 1 and eventually the greening system A can be easily removed. It is possible to flexibly deal with the maintenance of buildings and other buildings.

  The embodiment of the greening unit and the greening system according to the present invention has been described above, but the present invention is not limited to the above-described embodiment, and can be changed as appropriate without departing from the spirit of the present invention. For example, in this embodiment, by providing the tapered portion 2f on the side wall 2a of the water storage panel 2, the water storage panels 2 can be stacked while being engaged, and can be transported together with a reduced apparent volume. However, for example, a stepped portion is formed on the side wall 2a of the water storage panel 2 so that the side wall 2a on the lower end 2e side is disposed inside the side wall 2a on the upper end 2d side, and the lower end 2e side is parallel to the upper end 2d side. However, it may be formed to extend vertically downward. In this case, as in the present embodiment in which the tapered portion 2f is provided on the lower end 2e side of the side wall 2a, the lower end 2e side of the water storage panel 2 is inserted from the opening 2c on the upper end 2d side of the other water storage panel 2, The plurality of water storage panels 2 can be stacked while being engaged to reduce the apparent volume. Therefore, a plurality of water storage panels 2 can be efficiently transported together.

  Moreover, in this embodiment, the side wall part 3a of one planting part 3 is installed in the water storage panel 2, and it installs so that the other side wall part 3a may be piled up on the existing side wall part 3a at the time of change of soil thickness. However, the greening unit 1 may be configured by connecting a plurality of side wall portions 3a while being stacked on the artificial ground T such as a building.

  Furthermore, in this embodiment, although the water storage panel 2 and the side wall part 3a of the planting part 3, and the baseplate part 3b shall be formed so that each may show square shape in planar view, the shape needs to be limited especially. For example, each of the side walls 3a is formed in a rectangular shape in plan view, or the upper end 3c side of the side wall 3a is formed in a square shape or rectangular shape in plan view, while the lower end 3d side of the stepped portion 3e is a circular shape in cross section In this case, the water storage panel 2 may be formed, for example, in a circular shape in plan view in accordance with the shape of the side wall 3a on the lower end 3d side.

  Further, in the present embodiment, the greening unit 1 is provided with the partition portion 4, but external force such as a pedestrian's stepping pressure does not act, or even if external force acts, the greening unit 1 is damaged, In the case where it is determined that the soil is not displaced, the partition portion 4 is not necessarily provided. In addition, the partition portion 4 is formed in a cross shape by combining two partition plates 4a and 4b. For example, a plurality of engagement grooves 4e are formed in the partition plates 4a and 4b, and three or more sheets are formed. The partition plates 4a and 4b may be combined with each other, and the partition portion 4 may be formed in a lattice shape, for example. In this case, an external force larger than that of the partition portion 4 of the present embodiment can be supported according to the number of partition plates, and the soil and the greening unit 1 can be held more stably. In addition to this, the partition plates 4a and 4b are provided with two pairs of notch portions 4f each having a U-shaped cross section. If the notch 4f is formed so that water can go back and forth, the shape, arrangement, number, and the like of the notch 4f are not particularly limited.

It is a top view which shows the tree planting system which concerns on one Embodiment of this invention. FIG. 2 is a view taken along line XX in FIG. 1. It is a disassembled perspective view of the greening unit which concerns on one Embodiment of this invention with which the greening system of FIG. 1 is equipped. It is a disassembled sectional view of the greening unit which concerns on one Embodiment of this invention with which the greening system of FIG. 1 is equipped. It is a perspective view which shows the side wall part of the planting part comprised by the tree planting unit which concerns on one Embodiment of this invention. It is a disassembled perspective view of the partition part comprised by the tree planting unit which concerns on one Embodiment of this invention. It is sectional drawing which shows the state which accumulated the water storage part comprised by the tree planting unit which concerns on one Embodiment of this invention. It is sectional drawing which shows the state which installed the other side wall part in the side wall part of the greening unit which concerns on one Embodiment of this invention, and expanded the space of the planting part.

Explanation of symbols

1 Greening unit 2 Water storage panel (water storage part)
2a Side wall 2b Bottom plate 2c Opening portion 2d Upper end 2e Lower end 2f Tapered portion 3 Planting portion 3a Side wall portion 3b Bottom plate portion 3c Upper end 3d Lower end 3e Stepped portion 3f Hinge portion 3g Drain hole 4 Partition portion 4a Partition plate 4b Partition plate 4e Engagement groove 4f Notch 5 Water absorption zone 6 Space 7 Space 8 Waterway A Greening system T Artificial ground T1 Laying surface

Claims (7)

A box-shaped water storage part having a side wall and a bottom plate and having an opening on the upper end side, and planting for accommodating soil on which the plant is planted and provided on the upper end side of the water storage part so as to overlap the water storage part A greening unit comprising a
The water storage part is formed such that a lower end side connected to the bottom plate of the side wall is arranged on an inner side than the upper end side, and the planting part is detachably mounted on the upper end side of the water storage part and The water storage device includes at least one substantially cylindrical side wall portion that can be stacked and a substantially flat bottom plate portion having a through hole, and the bottom plate portion is detachably supported inside the side wall portion. The space defined by the side wall and the bottom plate of a portion and the space defined by the side wall portion and the bottom plate portion of the planting portion and containing soil are communicated via the through hole. Greening unit. The greening unit according to claim 1,
The greening unit, wherein the side wall of the water storage portion is provided with a tapered portion that gradually inwards in the lower end side from the upper end side toward the lower end. In the greening unit according to claim 1 or 2,
The greening unit is characterized in that the side wall portion is formed in a substantially rectangular cylindrical shape and is provided with hinge portions at four corner portions. In the greening unit in any one of Claims 1-3,
In the space for accommodating the soil of the planting part, a partition part is provided that divides and divides the space in plan view from above, and the partition part includes a plurality of substantially rectangular flat plate-like partitions. The greening unit, wherein the plates are formed so as to be separable so as to cross each other through engagement grooves formed in each of the partition plates. The greening unit according to claim 4,
The greening unit, wherein the partition plate is provided with a notch portion that communicates the space divided and partitioned by the partition portion. In the greening unit in any one of Claims 1-5,
The greening unit, wherein a water absorption zone for supplying water stored in the water storage part to the soil through the through hole is attached to the bottom plate part. A greening system comprising the greening unit according to any one of claims 1 to 6,
A greening system, wherein a plurality of the greening units are arranged and arranged on an artificial ground with no gap in a plan view from above with the side wall portions of adjacent greening units in contact with each other.

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