JPH0686440U - Water permeable plate with variable water retention - Google Patents

Abstract

(57) [Summary] [Purpose] The front and back sides of the water permeable plate have the same shape except that the water holding capacity is different, and two types are used depending on the type of plant. [Structure] A plurality of grooves having the same arrangement and intersecting with each other are provided at predetermined intervals on both sides of a water-permeable plate, and a plurality of water retention recesses having a similar shape are provided only by different water retention amounts, and both surfaces have a similar shape, Further, a water permeable plate having a number of water permeable holes penetrating the water permeable plate and capable of changing a water retention amount.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a water permeable plate capable of changing a water retention amount formed of a foamed synthetic resin plate used for civil engineering materials, agriculture, horticultural materials, and construction materials.

[0002]

[Prior art]

For blocks that are used for civil engineering materials, agriculture, horticultural materials, construction materials, etc., where water permeability is particularly required, good water permeability, less clogging, and easier processing, Due to its excellent pressure resistance and heat insulation properties, foamed beads are hardened with an adhesive and then cut into blocks. And since the above block has special continuous pores in order to have a drainage effect, its compressive strength is about 0.4 kg / cm ² or less, which is a commonly used Styrofoam block. Since it is considered to be ⅓ or less and the limit strength of compression creep is ⅙ or less, there is a problem that the use place is also limited.

In the use of the foamed resin block described above, a large number of these foamed resin blocks are laid on a substrate and embankment or concrete is placed from the upper part thereof. Not only is water retention required in some cases, but the conventional ones described above are not provided with water retention, and the places where they are used are limited.

[0004]

[Problems to be solved by the device]

 It is an object of the present invention to provide a water-permeable plate that has not only water permeability but also water retention in a foamed synthetic resin having closed cells and is excellent in workability and heat insulation.

[0005]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the water-permeable plate according to the present invention is provided with a plurality of grooves having the same arrangement and intersecting each other at predetermined intervals on both sides of a foaming resin plate having a predetermined thickness, and at the same time, the water retention capacity The feature is that a plurality of water retaining recesses having a similar shape are provided to form both surfaces in a similar shape by only differently, and a large number of water permeable holes penetrating the foamed resin plate are provided.

[0006]

[Action]

 The water permeable plate with variable water retention capacity according to the present invention has one side of a foamed resin plate with a predetermined thickness and one side of the foamed resin plate crossing each other at a predetermined distance. A plurality of grooves with a predetermined depth up to and including a recess for water retention on a flat surface where the grooves are not engraved, and the one surface is formed on the other surface of the foamed resin plate. A plurality of grooves and a water retaining portion that have the same arrangement and intersect with each other and a water retaining portion having a similar shape are provided, and the capacity of the water retaining portion is different from the capacity of the water retaining portion formed on the one surface. Therefore, it is possible to change the water retention capacity by selecting which side of one permeable plate is the top surface, and it is possible to select an appropriate water retention capacity depending on the type of tree or plant to be planted. Suitable for growing plants. In addition, the multiple grooves that intersect with each other on the water permeable plate enable leveling that follows unevenness when many water permeable plates are laid.

[0007]

【Example】

 An embodiment of the present invention will be described with reference to the drawings. Reference numeral 1 denotes a water-holding and water-permeable plate. The water-permeable plate 1 is made of, for example, foamed polystyrene or another synthetic resin, and is formed of a rectangular closed-cell foam having a required thickness. For example, a plurality of grooves 3 having a predetermined depth extending from one side surface to the other side surface in the vertical direction are formed on the front surface side 2 at required intervals, and intersect with the grooves 3, 3 ,. A plurality of grooves with a predetermined depth from one side surface to the other side surface are engraved at the required intervals in the direction of cutting. The shape of these grooves 3, 3, ..., 4, 4, ... May have a U-shaped cross section or a rectangular shape.

[0008] 5, 5, 5, ... penetrate to the back surface of the water-permeable plate 1 at the intersection of the vertical grooves 3, 3, ... and the horizontal grooves 4, 4 ,. It is a water-permeable hole provided. The water-permeable holes 5, 5, 5, ... Are provided at the intersections of the vertical grooves 3, 3, 3, ... And the horizontal grooves 4, 4, 4 ,. It does not necessarily have to be the above-mentioned intersection, and it may be provided at any position of the grooves 3, 3, ... And the grooves 4, 4 ,.

.. are provided with vertical grooves 3, 3, ... And horizontal grooves 4, 4, which are engraved on the front surface side 2 of the water-permeable plate 1. There are a plurality of recesses for water retention that are provided in a non-existing region. The water retention recesses 6, 6, 6, ... Have a depth H1 and all have the same size. May also be different.

On the other surface of the water-permeable plate 1, that is, on the back surface side 9, the longitudinal grooves 3, 3, ... Engraved on the front surface side 2 and the longitudinal grooves 3, 3 ,. The horizontal grooves 4, 4, 4, ... intersecting with the horizontal grooves 4, 4, 4, ... are provided on the opposite side, and the vertical grooves 10, 10, ... and the horizontal grooves 11, 11, ... that intersect each other are provided. , And the recesses for water retention provided on the front surface side 2 at the portions where the vertical grooves 10, 10, ... And the horizontal grooves 11, 11, ... Are not provided. .. are formed at the same position on the opposite side of the parts 6, 6, 6, ... With different shapes and different depths to form the water retention recesses 12, 12, 12 ,.

As described above, the depth H1 of the water retention recesses 6, 6, 6, ... On the front surface side 2 and the depth of the water retention recesses 12, 12, 12 ,. Since H2 has a relationship of H1> H2 and their shapes are similar to each other, the water retention amount on the front surface side 2 and the back surface side 9 is larger on the front surface side 2 than on the back surface side 9 as a whole. It will be

[0012] The grooves 3, 3, ..., 4, 4, ... and 10, 10, ..., 11, 11, 11, ... engraved on the front surface side 2 and the back surface side 9 of the water-permeable plate 1 are ventilated. In addition to the drainage function, it is not possible to place the water-permeable plate 1 on concrete, such as on a rooftop, or on a waterproof layer constructed on a concrete, with one of them facing up. It is useful for land adjustment.

As described above, the water-permeable plate 1 is made of foamed resin having closed cells, and has the same longitudinal grooves 3, 3, ... And 10, 10 formed on the front surface 2 and the rear surface 9. , ... and horizontal grooves 4, 4, ... and 11, 11, ... which intersect the vertical grooves, and are similar in shape and have different depths only for retaining water 6, 6, 6, ..., 12, 12, 12, ..., And the water-permeable holes 5, 5, 5, ... Can be efficiently molded by a molding die, and the water-permeable plate 1 made of the foamed resin in this embodiment is used. It is preferable that the foaming ratio is in a hard zone of 50 times or less than the pressure resistance.

By the way, as is well known, styrofoam is obtained by pre-expanding polystyrene fine particles containing a foaming material, filling it in a mold of a molding machine and re-foaming it by heating to obtain individual foamed particles. It is made by fusing and integrating, and then cooling to form a molded body.Since Styrofoam is an aggregate of foams containing closed cells, it has excellent mechanical properties such as compressive strength, chemical resistance, Although it has good oil resistance and excellent workability such as cutting, it has poor water permeability, so it was difficult to apply to civil engineering materials and agricultural / horticultural materials that require drainage and water retention functions.

However, in the above-mentioned embodiment, the water permeable plate 1 formed of a styrofoam plate having an appropriate thickness formed by an ordinary forming machine is crossed with each other in the longitudinal direction and the transverse direction at a predetermined interval. A plurality of grooves 3, 3, ... and 4, 4, ... carved to both side surfaces of the plate 1 are provided, and these grooves 3, 3, ..., 4, 4, ... are provided. A plurality of water-retaining concave portions 6, 6, 6, ... Formed with a predetermined depth H1 are provided in an unobstructed front surface portion, and the back surface 9 of the water-permeable plate 1 is also provided with the front surface 2 Are provided on the opposite sides of the grooves 3, 3, ..., 4, 4, .. Further, a plurality of water retaining recesses 12, 12, 12, ... Having different depths similar to the water retaining recesses 6, 6, 6 ,. ... are provided at the same position on the back side 9 and the grooves 3, 3, ..., 10, 10, 10, ... and 4, 4, 4, ..., 11, 11, ... arranged at the same position on the front and back sides. Since water-permeable holes 5, 5, 5, ... penetrating through ... are bored, a large number of one of the above-mentioned water-permeable plates 1 is laid out on the rooftop, for example, with the front surface side 2 as the upper surface, and embankment or the like is constructed on top of it. At that time, rainwater or water sprinkling that passed through the embankment was guided to the grooves 3, 3, 3, ..., 4, 4, 4, ... on the surface side 2 of the water permeable plate 1 and provided in the respective grooves. It can be drained from a large number of water permeation holes 5, 5, 5, ..., and the rainwater or sprinkling water described above can be stored in a plurality of water retaining recesses 6, 6, 6, ... which are recessed on the surface side 2. It is possible to keep water.

As described above, when a large number of water-permeable plates 1 are laid side by side with the front surface side 2 as the upper surface, the same number of the same number is provided at the position opposite to the front surface side 2 provided on the back surface 9 which is the lower surface. The perforated water can be drained by the vertical grooves 10, 10, ..., and the horizontal grooves 11, 11, ... intersecting with this, and when it is not used for draining. , Which is useful for air circulation, and as described above, the grooves 3, 3, ..., 4, 4, 4, ... on the front surface side and the grooves 10, 10, ..., 11 on the rear surface side 9 , 11, ... are useful for leveling when following the unevenness when the water-permeable plates 1 are laid one by one on the rooftop.

When the water-permeable plates 1 are laid out on a rooftop or the like, the front side 2 of the water-permeable plates 1 is laid out as an upper surface, but the reverse side 9 is used. The same action and effect as described above can be obtained by laying the explained one on the upper side. At this time, since the water holding capacity is smaller than that when the front side 2 is set on the upper side, planting and gardening can be performed. Depending on the type of plant, whether the front side 2 is the top side or the back side 9 is the top side, the amount of water retention can be adjusted, and accidents such as rooting of plants can be prevented. Is possible.

[0018]

[Effect of device]

 The water permeable plate according to the present invention with variable water retention capacity is provided with a groove and a water retaining recess on one surface thereof, and the other surface of the water permeable plate is also provided with a water retaining recess on the one surface thereof. Since the water retention recesses and grooves with different water retention capacity were formed in the same shape and in the same arrangement as the above-mentioned one surface, only the water retention capacity was different on both sides of the water-permeable plate. A water retaining recess of similar shape was obtained, and a plurality of water permeable holes were formed in the groove to penetrate the water permeable plate. When planting or horticulture is carried out by using the above method, rainwater, sprinkling water, etc. can be permeated through the above-mentioned water permeation holes, and can be retained by the water retention recesses. The groove is useful not only for drainage but also for uneven adjustment, and The desired water retention capacity can be obtained by properly using the different surfaces, which will bring good results to the growth of plants. Moreover, since the water-permeable plate is molded from foamed resin, it has excellent pressure resistance and heat insulation. Moreover, the workability is also good.

[Brief description of drawings]

FIG. 1 is a plan view of a water permeable plate.

FIG. 2 is a sectional view taken along line AA of FIG.

FIG. 3 is a perspective view of a water permeable plate.

[Explanation of symbols]

 1 Water Permeable Plate 2 One Side 3,10 Vertical Groove 4,11 Horizontal Groove 6,12 Water Retaining Concavity 5 Water Permeability Hole

Claims (1)

[Scope of utility model registration request] 1. A water retaining recess having a similar shape provided with a plurality of grooves having the same arrangement and intersecting each other at a predetermined interval on both sides of a foamed resin plate having a predetermined thickness, and having a similar shape only by different water retaining amounts. A water-permeable plate with variable water-retaining capacity, characterized in that a plurality of water-permeable holes are provided on both sides of the foamed resin plate to form a similar shape.