KR102759408B1 - Vegetated Modular Stairs - Google Patents

Abstract

The present invention relates to a stair assembly capable of raising and lowering an inclined surface while growing vegetation by accommodating a vegetation soil bag therein and, more specifically, to a vegetation modular stair in which a lattice rib and a lattice hole are formed between the lattice ribs on a surface of a frame accommodating the vegetation soil bag therein to firmly support a load with the lattice rib, and vegetation of the vegetation soil bag grows through the lattice hole.

Description

{Vegetated Modular Stairs}

The present invention relates to a staircase capable of ascending and descending a slope while planting vegetation by accommodating a vegetation soil bag inside, and more specifically, to a vegetated modular staircase in which a frame accommodating a vegetation soil bag inside has grid bars and grid holes formed between the grid bars to firmly support a load with the grid bars, and vegetation in the vegetation soil bag grows through the grid holes.

In general, most hiking trails and walking trails that are primarily used for walking are used unpaved, not only because of the difficulties in various conditions due to paving work, but also for the purpose of preserving the natural environment.

In the case of these unpaved roads and slopes without stairs, the damage to the road surface increased proportionally as the number of hikers and pedestrians increased, and in particular, during seasons such as heavy rain, when rapid currents passed by, or during the thawing season, there was a problem of the road surface being washed away due to climatic factors.

In addition, there were problems with walking in sections where the road slope was steep or had sandy soil, and there was a risk of safety accidents such as falls due to slipping.

Due to these conditions, stairs are installed on slopes such as hiking trails to allow hikers to climb easily and prevent safety accidents such as slipping.

Conventional inclined stairs have been used to transport heavy timber, steel, and concrete materials to unpaved hiking trails and walking paths located at high elevations, and have been difficult and time-consuming tasks for many people in the narrow, sloping spaces of hiking trails and walking paths.

There are cases where ramps are paved with concrete or aggregate and cement, but these structures can only be used where vehicles can pass in order to transport the materials, and there is a problem that construction is very difficult or impossible in deep mountain areas where transport is not possible.

Meanwhile, according to Korean Patent Registration No. 10-1028709, a vegetation retaining wall that provides a retaining wall covering an unpaved road surface is configured as a single piece, including a front portion of a main body, side support portions formed on both sides of the rear of the front portion, and a bottom support portion that supports the front portion and the side support portion from the bottom, and has a dustpan shape, and is characterized in that the side support portion is a stepped side support portion in which one or both sides of the vegetation block have a stepped shape.

By filling the inside of the above vegetation blocks with soil, plants can be planted, covering the ramp without damaging the natural landscape, preventing the ramp surface from being washed away.

However, the vegetation blocks as mentioned above are stacked in steps, but they are not suitable as vegetation steps for hikers or pedestrians, because the soil filled inside turns to mud due to rain, and there is a risk that the soil inside will be washed away along with the rain, and the soil will be exposed and muddy, so there is a safety risk for hikers or pedestrians to step on and climb. In addition, the soil inside will be washed away, revealing empty spaces, making the structure unsuitable for stepping on.

And, since there is no structure to protect the vegetation planted inside, there is a risk that the vegetation will not grow properly due to trampling and will be abandoned as an eyesore.

Therefore, it is necessary to develop stairs that can safely climb the surface of a slope, but have a sturdy structure that is not damaged by the load, and that can grow vegetation in harmony with the natural environment, but protect the vegetation from being stepped on.

KR 10-1028709 (B1) 2011.04.05. KR 10-0515136 (B1) 2005.09.08.

In order to solve the above-mentioned problem, the purpose of the present invention is to provide a vegetation modular staircase in which vegetation is planted by placing vegetation soil bags filled with seeds and vegetation soil inside a frame formed to an appropriate size for pedestrians to go up and down, and exposing the vegetation through grid holes formed in the frame so that the appearance blends in with the natural landscape, and the depth of the grid holes is deepened so that the roots are protected without damage even when people walk, thereby allowing the vegetation to grow.

Another object of the present invention is to provide a vegetated modular staircase having mechanical strength so that the frame can firmly support the load caused by a person walking without breaking or damaging the frame by thickening the width of the lattice bars.

Another object of the present invention is to provide a vegetative modular staircase that can be easily manufactured at a low production cost by manufacturing the frame and cover using a plastic molding process, while achieving light weight, so that it can be easily transported to the installation site and easily constructed.

Another object of the present invention is to provide a vegetation modular staircase that prevents the seeds and vegetation soil from being washed away even in rain by wrapping the seeds and vegetation soil inside the vegetation soil bag with nonwoven fabric, and allows the sprouts to germinate outside the vegetation soil bag.

Another object of the present invention is to provide a vegetated modular staircase in which a press member penetrates the ground through an upper penetration hole on the upper side of the frame, a vegetation soil bag, and a lower penetration hole on the lower side, thereby being fixed therein, so that the position can be stably fixed without being swept away from the slope even before the roots of the vegetation firmly hold onto the soil.

Another object of the present invention is to provide a vegetated modular staircase in which the center of the upper side, which is relatively far from the front and rear sides of the frame and cannot sufficiently support the load caused by walking, is distributed to the ground by a vegetated soil bag accommodated inside the frame, and in which a press-fit member arranged to penetrate the center of the upper and lower sides transfers the load caused by walking to the ground, thereby reducing the load applied to the upper side and lowering the risk of damage.

Another object of the present invention is to provide a vegetative modular staircase capable of maintaining the shape of the staircase intact even with a lot of foot traffic by having a frame located on one floor and a step joint connecting the frame located above the frame.

Another object of the present invention is to provide a vegetated modular staircase in which a first connecting cover inserted into the open left side of the frame on both sides of a finishing plate and a second connecting cover inserted into the open right side of the frame are formed integrally so that the length of the frame can be freely extended in the horizontal direction, and the first connecting cover and the second connecting cover form a structure that transfers the load generated on the upper side of the frame to the ground, thereby increasing the load-bearing capacity.

In order to achieve the above-mentioned object, the present invention comprises: a frame (100) formed in a hexahedral shape, wherein the left side (150) and the right side (160) are open sides, and all sides except the left side (150) and the right side (160) are formed with lattice bars (GF) in a lattice shape and lattice holes (GH) which are perforations between the lattice bars (GF); a joint plate (900) arranged between frames (100) adjacent in the left and right horizontal directions, and blocking the right side (160) of the frame (100) located on the left and the left side (150) of the frame (100) located on the right, and in which the lattice bars (GF) and the lattice holes (GH) are formed; A first connection cover (920) protruding to the right from a spacer (910) formed in the center of the above-mentioned joint plate (900) and inserted into the left side (150) of the above-mentioned frame (100) to support the upper side (110) and the lower side (120) of the frame (100); A second connection cover (930) protruding to the left from the spacer (910) of the above-mentioned joint plate (900) and inserted into the right side (160') of another frame (100') positioned adjacent to the above-mentioned frame (100) to support the upper side (110') and the lower side (120') of the frame (100'); It includes a vegetation soil bag (500) which is placed inside the frame (100) and filled with vegetation soil and seeds, and in which germinated vegetation is exposed through grid holes (GH) formed on the upper side (110) of the frame (100) and the joint plate (900).

In addition, the present invention further includes a press-in member (600) that penetrates an upper penetration hole (111) formed at the center of the upper side (110), a vegetation soil bag (500) accommodated in a receiving hole (190) of the frame (100), and a lower penetration hole (121) formed at the center of the lower side (120) to fix the frame (100) to the ground.

In addition, the present invention further includes a step joint (700) that is inserted into a grid hole (GH) formed on an upper surface (110) of a lower frame (100) and a grid hole (GH) formed on a lower surface (120) of an upper frame (100) among vertically adjacent frames (100) to vertically join the frames (100) in steps.

In addition, the spacer (910) formed in the center of the joint plate (900) of the present invention and the first connection cover (920) and the second connection cover (930) on both sides thereof are formed integrally; a plurality of adjacent frames (100, 100') are connected in a horizontal direction by the first connection cover (920) and the second cover (930).

In addition, the first connection cover (920) or the second connection cover (930) of the present invention is in surface contact with the lower surface of the upper side (110) at the top and the upper surface of the lower side (120) at the bottom, respectively, and the first connection cover (920) or the third connection cover (930) has one or more grid holes (GH) arranged in a plurality of rows in the front-back direction in the left-right horizontal direction.

In addition, the first connection cover (920) or the second connection cover (930) of the present invention has a closed surface (CS) without a grid hole (GH) formed in the front-back direction at the left end and the right end, respectively.

In addition, the length (S) of the grid hole (GH) of the present invention is formed longer than the depth (D) of the grid hole (GH) and the width (W) of the grid bar (GF), and the depth (D) of the grid hole (GH) is formed identical to the width (W) of the grid bar (GF) surrounding the grid hole (GH), thereby inducing exposure of vegetation to the outside of the frame (100).

In addition, the upper and lower length and front and rear length of the spacer (910) of the present invention are formed to be identical to the upper and lower length and front and rear length of the frame (100).

In addition, the frame (100) of the present invention has a closed surface (CS) formed from the outermost grid hole (GH) with a width equal to or longer than the width (W) of the grid bar (GF).

The vegetation modular staircase according to the present invention is formed to an appropriate size for pedestrians to go up and down by placing vegetation soil bags filled with seeds and vegetation soil inside a frame formed to plant vegetation and exposing it through lattice holes formed in the frame so that the appearance blends in with the natural landscape, and by deepening the lattice holes, the roots are protected without damage even when people walk, thereby enabling the vegetation to grow.

In addition, the present invention has the advantage of having mechanical strength so that the frame can firmly support the load caused by a person walking without breaking or being damaged by thickening the width of the lattice bars.

In addition, the present invention has the advantage of being able to be easily manufactured at low production cost by manufacturing the frame and cover using a plastic molding process, while achieving light weight, so that it can be easily transported to the installation site and easily constructed.

In addition, the present invention has the advantage of preventing the seeds and vegetation soil from being lost even in rain by wrapping the seeds and vegetation soil inside the vegetation soil bag with non-woven fabric, and allowing the sprouts to germinate outside the vegetation soil bag.

In addition, the present invention has the effect of stably fixing the position without being swept away from the slope even before the roots of the vegetation firmly hold onto the soil by having the pressurized member penetrate the ground by passing through the upper penetration hole of the upper side of the frame, the vegetation soil bag, and the lower penetration hole of the lower side.

In addition, the present invention has the advantage of distributing the load generated at the center of the upper side to the ground by the vegetation soil bag accommodated inside the frame, which is relatively far from the front and rear sides of the frame and thus cannot sufficiently support the load caused by walking, and furthermore, the press-fit bar arranged to penetrate the center of the upper and lower sides transfers the load caused by walking to the ground, thereby reducing the load applied to the upper side and lowering the risk of damage.

In addition, the present invention has an advantage in that the shape of the stairs can be maintained intact even with a lot of foot traffic by providing a step joint connecting a frame located on one floor and a frame located above it.

In addition, the present invention has a first connecting cover inserted into the open left side of the frame on both sides of the finishing plate and a second connecting cover inserted into the open right side of the frame formed integrally, so that the length of the frame in the horizontal direction can be freely extended, and the first connecting cover and the second connecting cover form a structure that transfers the load generated on the upper side of the frame to the ground, so that the load bearing capacity is increased.

Figure 1 is a perspective view showing a unit block forming a vegetation modular staircase of the present invention.
Figure 2 is an exploded perspective view of a unit block forming the vegetation modular staircase of the present invention.
Figure 3 is a perspective view showing a frame in the vegetative modular staircase of the present invention.
Figure 4 is a cross-sectional perspective view of the first cover and the second cover in the vegetation modular staircase of the present invention, joined to the frame.
Figure 5 is a perspective view showing a state in which three unit blocks are joined in the left-right direction in the vegetation modular staircase of the present invention.
Figure 6 is an exploded perspective view showing the appearance of two frames, a first cover, a second cover, a finishing plate, and a joint plate in the vegetation modular staircase of the present invention.
Figure 7 is a cross-sectional view of the vegetative modular staircase of the present invention installed on a sloped road surface.
FIG. 8 is an enlarged perspective view of the lattice bars and lattice holes formed in the frame, the first cover, the second cover, the finishing plate, and the joint plate in the vegetative modular staircase of the present invention.

Hereinafter, a preferred embodiment of the present invention will be described with reference to the attached drawings so that a person skilled in the art can easily implement the present invention.

The vegetation modular staircase according to the present invention relates to a staircase that provides high-strength stair blocks for going up and down a ramp, while accommodating a vegetation bag (500) inside and planting vegetation to blend in with the natural landscape.

A frame (100) formed in a hexahedral shape, with the left side (150) and the right side (160) being open surfaces, and with lattice bars (GF) and lattice holes (GH) formed between the lattice bars (GF) on all surfaces except the left side (150) and the right side (160);

A finishing plate (400) covering the open left side (150) or right side (160) of the above frame (100) and in which the grid bars (GF) and grid holes (GH) are formed;

A first cover (200) protruding to the right from the above finishing plate (400) and inserted into the left side (150) of the frame (100), connecting the upper side (110) and the lower side (120) of the frame (100), and forming the grid bars (GF) and grid holes (GH);

A second cover (300) that protrudes to the left from the above finishing plate (400) and is inserted into the right side (160) of the frame (100), connects the upper side (110) and the lower side (120) of the frame (100), and in which the grid bars (GF) and grid holes (GH) are formed;

It includes a vegetation soil bag (500) which is placed inside the frame (100) and filled with vegetation soil and seeds, and in which germinated vegetation is exposed through a grid hole (GH) formed on the upper surface (110) of the frame (100).

The present invention provides stairs that can be installed in a step structure to safely go up and down an unpaved slope. Unpaved slopes are mainly used as hiking trails, walking trails, etc., and pedestrians (hikers) walking on these places visit these places to enjoy the natural environment and receive mental healing. Therefore, the present invention provides stairs that can be decorated with vegetation by additionally arranging vegetation sacks (500) so that the stairs, which are artificial structures, can blend in naturally without damaging the natural landscape, and as the vegetation grows, it covers the stairs, providing stairs that are aesthetically pleasing, comfortable to look at, and providing pedestrians (hikers) with a new walking experience.

The purpose of the staircase of the present invention is to be light in weight for easy transport in order to facilitate and speed installation and construction, to be structurally sound without damage even under the load generated when pedestrians go up and down the stairs, and to preserve the life and growth of vegetation growing on the stairs without killing it even when many people walk by.

To this end, the staircase of the present invention has a single-layer lightweight frame (100), and a lattice hole (GH) is formed in the frame (100) to firmly support the load caused by walking while exposing vegetation growing inside to the outside, and the frame (100) is laminated in multiple layers to form steps so that it is easy to go up and down a sloped road surface.

At the time of installation and construction of the present invention, the seeds contained in the vegetation soil bag (500) are not yet germinated and are therefore not covered with vegetation. However, after it rains or at any time, they are watered to cause germination, and the seeds contained in the vegetation soil bag (500) germinate and break through the vegetation soil bag (500) to be exposed to the outside. As a result, the stairs are covered with vegetation and blend in with nature, and pedestrians (hikers) can step on these stairs and walk on the slope.

In the present invention, the directions of up, down, front, back, left, and right follow the direction charts shown in FIGS. 1 and 3.

The vegetation modular staircase according to the present invention is formed by connecting frames (100) of an appropriate size for a pedestrian to go up or down in one step in multiple layers in the vertical direction to form stairs. The number of layers of the frames (100) is determined according to the length of the inclined road surface, that is, the length in the diagonal direction, and is provided as a single or multiple units. In the case where the number of layers is determined as multiple, the number of frames (100) is provided according to the number of layers and are mutually connected in a stepwise manner in the vertical direction to form stairs.

FIGS. 1 to 4 according to an embodiment of the present invention illustrate a case where a frame (100) is provided as a single unit, FIGS. 5 to 6 illustrate a case where a plurality of frames (100) are extended in the left-right horizontal direction to expand the width of the stairs (the length in the left-right direction), and FIG. 7 illustrates a case where a plurality of frames (100) are connected in a vertical direction with steps to form multiple floors. As shown in the drawings, the stairs of the present invention can be arranged to suit the installation site by adjusting the number of floors of the stairs and the width of the stairs of one floor (the length in the left-right direction) by arranging a plurality of frames (100) in the left-right horizontal direction or the vertical direction. In addition, the length of the stairs of one floor in the front-back direction (usually the length of the riser) can be adjusted. In this way, in the staircase of the present invention, the frame (100) forms the minimum unit block (B) for forming the staircase structure, and the overall height of the staircase, the shape size of one floor, etc. are determined according to the arrangement of the plurality of frames (100). In the present invention, the unit block (B) means a state in which the first cover (200) (or the first connection cover (920)) and the second cover (300) (or the second connection cover (930)) are fitted to the left side (150) and the right side (160) of a single frame (100), and a vegetation soil sac (500) is accommodated in the receiving hole (190) inside. At this time, the press-in section (600) may be provided for each of the unit blocks (B), or the press-in section (600) may be provided only for a specific unit block (B).

The vertical length (height, usually the height of the tread) of the above frame (100) is formed to an appropriate height for a pedestrian to take one step. It is usually formed to a size of 30 cm or less, and it is preferable that the length of the front-back direction of the frame (100) (usually the length of the riser) is formed to be about 25 cm or more. The size of the above frame (100) can follow general guidelines in consideration of the installation location.

The frame (100) according to the present invention should be designed to be sturdy enough to withstand the load because it is a structure that applies a load when a pedestrian steps on it, and should also be formed to be light enough to be easily transported on a sloped road surface. To meet this requirement, the frame (100) may be formed of a plastic material, and its shape is formed using a known plastic molding method. In addition, since the interior of the frame (100) is formed as a hollow space, the weight is small compared to the volume, so that it can be made lightweight, and the ease and convenience of transport are improved.

FIG. 1 is a perspective view showing one unit block (B) forming the stairs of the present invention. As shown in FIG. 1, the frame (100) of the present invention has a hollow receiving hole (190) formed therein, a vegetation soil bag (500) is received in the receiving hole (190), and a first cover (200) and a second cover (300) (or a connecting plate (900)) covering the open left side (150) and right side (160) of the frame (100) are fitted to the frame (100), and a step connecting member (700) for connecting a plurality of frames (100) in a stepwise manner connects the frames (100) arranged above and below in a stepwise manner. As shown in FIG. 1, the connecting plate (900) may be arranged instead of the second cover (300) to allow the frame (100) to be expanded in the left and right horizontal directions.

When installing and constructing these stairs, it is less burdensome to transport them by manpower to unpaved locations where transport equipment has difficulty entering the installation site, and since the stairs after installation cover the sloped road surface, pedestrians can safely go up and down the slope without slipping, and since vegetation grows in the vegetation sac (500) inside, it adds liveliness to the frame (100), blending in with the natural landscape.

FIG. 2 is an exploded perspective view of a unit block (B) forming a staircase of the present invention. As illustrated in FIGS. 2, 5, and 6, one frame (100) includes a first cover (200) inserted into an open left side (150), a second cover (300) (or a connecting plate (900)) inserted into an open right side (160), a finishing plate (400) coupled to the first cover (200) or the second cover (300), a plurality of fixing clips (800) that couple the first cover (200) and the second cover (300) to the frame (100), a vegetation soil bag (500) accommodated inside the frame (100), and a step coupling member (700) that vertically couples a plurality of frames (100) in steps. At this time, a pressurizing member (600) that secures the vegetation soil bag (500) and frame (100) to the ground may be further included in the unit block (B).

As shown in FIGS. 2 and 3, the frame (100) is formed with open left side (150) and right side (160), and as shown in FIGS. 4 and 5, the first cover (200) and the second cover (300) cover the left side (150) and right side (160) of the frame (100), respectively. The first cover (200) and the second cover (300) are coupled with a closing plate (400), and the closing plate (400) blocks the open left side (150) or right side (160) of the frame (100) from the outside of the frame (100). The closing plate (400) prevents the vegetation soil sac (500) accommodated in the accommodation hole (190) from being detached from the open left side (150) or right side (160) of the frame (100). Figure 3 shows only the frame (100), and arrows designating symbols 110, 120, 130, 140, 150, and 160 in Figure 3 each point to a surface of the frame (100).

As shown in FIGS. 5 and 6, the left side (150) and the right side (160) of one frame (100) are each blocked by different finishing plates (400), and the finishing plates (400) have a first cover (200) or a second cover (300) protruding to the right and left, respectively, and the first cover (200) and the second cover (300) support the upper side (110) and the lower side (120) of different frames (100, 100').

The width, which is the length in the left-right direction of the above finishing plate (400), is formed to be the same as the width (W) of the grid bar (GF). In addition, since the grid hole (GH) penetrates the finishing plate (400), the width of the finishing plate (400) is the same as the depth (D) of the grid hole (GH).

The above frame (100) has a closed surface (CS) formed at a portion where one side of the frame is in contact with an adjacent side. The closed surface (CS) is formed as a continuous surface without a grid hole (GH). A grid hole (GH) is formed on one side of the frame (100) except for the left side (150) and the right side (160), and a closed surface (CS) having a width equal to or longer than the width (W) of a grid bar (GF) is formed from the grid hole (GH) located at the outermost side of the one side. The above closed surface (CS) supports the frame (100) so as to maintain its shape even when a load is applied. The closed surface (CS) corresponds to 12 sides of the hexahedral frame (100).

Meanwhile, as shown in FIGS. 1, 2, 4 to 6, a joint plate (900) positioned between a plurality of frames (100, 100') adjacent in the horizontal direction on the left and right sides is provided with a spacer (910) at the center for adjusting the gap between the frames (100, 100'), and a first connection cover (920) and a second connection cover (930) protrude in the right and left directions from each of the left and right sides of the spacer (910), and although the spacer (910) is a single piece, it blocks the left side (150) and the right side (160) of the frames (100, 100') on the left and right sides. That is, the left side (150) and the right side (160) of two frames (100, 100') are each blocked by one spacer (910).

The joint plate (900) is configured to connect adjacent frames (100, 100') in the horizontal direction without a step, and a spacer (910) located in the center, a second connection cover (930) and a first connection cover (920) protruding to the left and right of the spacer (910) are formed integrally. At this time, the spacer (910) may have the same shape and structure as the finishing plate (400), and the first connection cover (920) may have the same structure and shape as the first cover (200), and the second connection cover (930) may have the same structure and shape as the second cover (300).

Referring to FIG. 2, the first connection cover (920) or the second connection cover (930) is formed with grid holes (GH) and grid bars (GF), and the grid holes (GH) are arranged in the left-right direction in one or more numbers. In addition, a plurality of grid holes (GH) are provided in the front-back direction or the up-down direction, and the plurality of grid holes (GH) are arranged in a row in a parallel manner in the front-back direction or the up-down direction. In one embodiment of the present invention, the grid holes (GH) arranged in the left-right direction in the first connection cover (920) or the second connection cover (930) are shown as one, but in another embodiment, the number may be increased to two or more.

Alternatively, the first connection cover (920) or the second connection cover (930) does not have grid holes (GH) formed at the left and right ends, respectively, so that a closed surface (CS) is formed in the forward and backward directions and the up and down directions to form a sealed surface. The first connection cover (920) or the second connection cover (930) is also inserted into the interior of the frame (100, 100') to support the upper surface (110, 120') and the lower surface (120, 120'), and the supporting strength thereof can be reinforced through the closed surface (CS).

The first connection cover (920) and the second connection cover (930) protruding on both sides of the spacer (910) of the joint plate (400) placed between two frames (100, 100') share one spacer (910) and are fitted into different frames (100, 100') to support the upper side (110, 110') and the lower side (120, 120') of the frames (100, 100').

A first coupling hole (170) is formed in the frame (100) and the first cover (200) (or the first connection cover (920)), and a fixing clip (800) that couples the frame (100) and the first cover (200) (or the first connection cover (920)) passes through the first coupling hole (170). In addition, a second coupling hole (180) is formed in the frame (100) and the second cover (300) (or the second connection cover (930)), and the fixing clip (800) passes through the second coupling hole (180). The fixing clip (800) is a coupling member for coupling the first cover (200) (or the first connection cover (920)) and the second cover (300) (or the second connection cover (930)) to the frame (100).

A vegetation soil bag (500) is placed in a receiving hole (190) inside the frame (100), and a press member (600) that vertically penetrates the upper and lower parts of the frame (100) penetrates the vegetation soil bag (500) and is embedded in the ground to fix the frame (100) and the vegetation soil bag (500) to the ground.

In addition, in order to form stairs by vertically arranging unit blocks (B) in steps, step joints (700) are inserted into grid holes (GH) formed in the upper surface (110) of the lower frame (100) and grid holes (GH) formed in the lower surface (120) of the upper frame (100) among the vertically adjacent frames (100), thereby connecting the frames (100) in steps in the vertical direction.

Fig. 3 is a perspective view illustrating a frame (100) of the present invention. As shown in Fig. 3, the frame (100) forming the unit block (B) of the present invention has open left sides (150) and right sides (160), and lattice bars (GF) and lattice holes (GH) are formed on the front side (130), rear side (140), upper side (110), and lower side (120) of the remaining sides except for the open left side (150) and right side (160). The vegetation soil bag (500) is inserted into the receiving hole (190) formed hollow inside the frame (100) through the left side (150) or the right side (160).

The vegetation soil bag (500) may have an outer surface formed of a fibrous material such as a nonwoven fabric, and is filled with seeds and vegetation soil that can germinate and grow the seeds inside. In the present invention, the outer surface of the vegetation soil bag (500) is described as being made of nonwoven fabric, but other materials are not excluded. When water is supplied to the vegetation soil bag (500) by supplying water to the vegetation soil bag (500) by means of water supply or rain, the seeds germinate and grow by breaking through the nonwoven fabric, which is the outer surface of the vegetation soil bag (500). In addition, not only the sprouts but also the roots grow and hold onto the vegetation soil inside the nonwoven fabric, and when they break through the nonwoven fabric and come out, they grow roots toward the ground and hold onto the soil on the ground.

The lattice bars (GF) formed on the remaining surfaces except for the left surface (150) and the right surface (160) of the above frame (100) form the skeleton of the surface of the frame (100), and are formed in a lattice shape to alternate with each other to form an upper surface (110), a lower surface (120), a front surface (130), and a rear surface (140). In addition, lattice holes (GH) are formed between the lattice bars (GF) so that sprouts, roots, etc. of plants can be exposed to the outside of the frame (100).

Since the roots of the vegetation hold the vegetation soil inside the vegetation soil bag (500) until they extend out of the vegetation soil bag (500), the vegetation soil is not swept away by rainwater and is not lost. When the roots of the vegetation extend out of the frame (100) through the grid holes (GH) at the bottom of the frame (100) and expand below the ground, not only does the frame (100) not come off the installation location due to the roots of the vegetation, but it also prevents the erosion of the inclined road surface because the roots of the vegetation hold the soil on the ground. In this way, the stairs of the present invention prevent the fixation of the frame (100) and the erosion of the ground due to the roots of the vegetation after the vegetation has grown.

An upper penetration hole (111) and a lower penetration hole (121) through which a press member (600) passes are formed at the center of the upper side (110) and the center of the lower side (120). The upper penetration hole (111) and the lower penetration hole (121) may be formed in a stepwise manner so that the head of the press member (600) can be caught. Although the upper and lower directions are set as shown in FIGS. 1 and 3 for the purpose of explaining the present invention, the frame (100) of the present invention has a structure that is symmetrical up and down, so that even if the upper side (110) and the lower side (120) are reversed, the structure and shape are the same. Therefore, when installing and constructing the stairs of the present invention, the worker does not need to distinguish between the upper and lower directions, so the convenience of the work is improved and the work time can also be shortened.

The load due to walking is mainly generated at the upper side (110). In order to transfer this load to the ground (road surface), the front side (130) and the rear side (140) support the upper side (110) and the lower side (120). Therefore, when the load generated by walking is applied to a part adjacent to the front side (130) or the rear side (140) at the upper side (110), the load is distributed and transferred to the ground without damage to the upper side (110).

A vegetation soil bag (500) is accommodated in the internal receiving hole (190) of the above frame (100). Since the vegetation soil bag (500) fills most of the space of the receiving hole (190), it comes into contact with the bottom surface of the upper side (110) and the upper surface of the lower side (120). Therefore, even if a load is applied to a portion (near the center) of the upper side (110) that is not adjacent to the front side (130) or the rear side (140) and is relatively far away from the ground and cannot distribute the load to the ground, the vegetation soil bag (500) transfers the load to the ground, so the upper side (110) of the frame (100) can firmly support the load over the entire area. Since the vegetation soil bag (500) is restrained inside the frame (100) covered with the first cover (200) and the second cover (300), it does not protrude laterally even when a load is applied from above, and the upper side (110) and the lower side (120) are connected through the vegetation soil to transmit the load to the ground, thereby preventing damage to the frame (100). In this way, the stairs of the present invention can distribute the load to the ground through the vegetation soil bag (500), thereby increasing the bearing capacity for the load.

The frame (100) of the present invention has open left side (150) and right side (160), so that when forming a staircase structure, the length (width) in the left and right directions can be freely varied in consideration of the conditions of the installation location. For example, FIG. 5 shows an example in which three unit blocks (B) are arranged horizontally and each frame (100) is connected, and FIG. 6 shows an example in which two unit blocks (B) are arranged horizontally. In this way, the width of the staircase can be adjusted in various ways, such as two times or three times, through the open left side (150) or right side (160) of the frame (100).

A first cover (200) and a second cover (300) are provided to cover the left side (150) and the right side (160) of the frame (100). The first cover (200) and the second cover (300) are inserted into the left side (150) and the right side (160) of the frame (100), respectively, and come into contact with the lower surface of the upper side (110) and the upper surface of the lower side (120) of the frame (100). Therefore, the load generated near the end in the left and right directions from the center (the position of the upper through hole (111)) of the upper side (110) of the frame (100) can be transferred to the ground by the first cover (200) and the second cover (300).

The first cover (200) and the frame (100) are connected by means of a fixing clip (800), and a first connecting hole (170) through which the fixing clip (800) passes is formed in the first cover (200) and the frame (100). The first connecting hole (170) formed in the first cover (200) and the first connecting hole (170) formed in the frame (100) are connected and the fixing clip (800) passes through them at the same time, thereby completing the connection of the first cover (200) and the frame (100). The first connecting hole (170) in the frame (100) is formed at a position adjacent to the left end of the frame (100).

In addition, the second cover (300) and the frame (100) are connected through a fixing clip (800), and a second connecting hole (180) through which the fixing clip (800) for connecting the second cover (300) and the frame (100) passes is formed in the second cover (300) and the frame (100). The second through hole formed in the second cover (300) and the second through hole formed in the frame (100) are connected and the fixing clip (800) passes through them at the same time, thereby completing the connection of the second cover (300) and the frame (100). The second connecting hole (180) in the frame (100) is formed at a position adjacent to the right end of the frame (100).

The first cover (200) and the second cover (300) are also formed with grid bars (GF) and grid holes (GH), and the grid holes (GH) formed in the first cover (200) and the second cover (300) are connected to the grid holes (GH) formed in the frame (100). The grid holes (GH) are for exposing shoots, stems, leaves, roots, etc. of plants to the outside of the frame (100). In order to prevent the plants from being blocked and their exposure limited by the first cover (200) and the second cover (300) inserted into the receiving hole (190) of the frame (100), the grid holes (GH) of the first cover (200) and the second cover (300) are connected to the grid holes (GH) of the frame (100), thereby enabling more plants to be planted.

The first cover (200) and the second cover (300) are formed in a 'ㅁ' shape, and a closing plate (400) is further provided to block the open left side (150) and right side (160) of the frame (100) and prevent the vegetation soil bag (500) from being separated from the receiving hole (190). The closing plate (400) is formed in a plate shape with the surface direction standing vertically toward the left side (150) or the right side (160), and a grid bar (GF) and a grid hole (GH) are formed to expose the vegetation to the outside.

The load-bearing capacity is further improved by the first cover (200) or the second cover (300) being coupled to the finishing plate (400). That is, the load applied from the upper side (110) of the frame (100) is distributed in the order of the upper side (110) of the frame (100) > the first cover (200) or the second cover (300) > the finishing plate (400) > the lower side (120) of the frame (100) and the ground. Accordingly, the first cover (200) or the second cover (300) can prevent damage to a part with weak supporting capacity while distributing the load caused by walking on the upper side (110), and the finishing plate (400) reinforces the strength of the first cover (200) or the second cover (300).

In addition, the first connection cover (920) and the second connection cover (930) are identical to the first cover (200) and the second cover (300) in their function, structure, shape, and effect, respectively, except that the first connection cover (920) and the second connection cover (930) are formed on the spacer (910) rather than the finishing plate (400).

As shown in FIGS. 5 and 6, when the finishing plate (400) covers the open left side (150) or right side (160) of the frame (100), the size of the finishing plate (400) is formed to be the same as the size of the frame (100), so that the finishing plate (400) does not protrude further than the outer surface of the frame (100). Accordingly, there is no step between the outer surface of the finishing plate (400) and the frame (100), and a safety accident caused by a pedestrian being tripped by the finishing plate (400) while walking on the stairs can be prevented.

In addition, the spacer (910) may be identical to the finishing plate (400) in terms of its function, structure, shape, and effect, and the spacer (910) is also formed so that the upper and lower length and the front and rear length are identical to the upper and lower length and the front and rear length of the frame (100).

The above-described finishing plate (400) may be provided with a first cover (200) or a second cover (300) on either side. When the finishing plate (400) blocks the open left side (150) of the frame (100), the first cover (200) is formed to protrude in the right direction of the finishing plate (400), and when the finishing plate (400) blocks the open right side (160) of the frame (100), the second cover (300) is formed to protrude in the left direction of the finishing plate (400).

Fig. 7 is a cross-sectional view of the stairs of the present invention installed. Referring to Fig. 7, the unit blocks (B) are arranged in steps in the vertical direction, and the slope of the road surface is a step structure so that pedestrians can easily go up and down without slipping. Fig. 7 is a cross-sectional view, and a single or multiple frames (100) may be provided in the stairs forming one floor. When multiple frames (100) are provided and extended in the horizontal direction left and right, the width of the stairs is expanded.

The press-fitting member (600) is inserted into the ground through the upper penetration hole (111), the vegetation soil bag (500), and the lower penetration hole (121), and the frame (100) is fixed to the ground. In addition, when vegetation grows in the vegetation soil bag (500), the roots leave the vegetation soil bag (500) and extend outward through the grid holes (GH) formed in the frame (100), the first cover (200), the second cover (300), or the finishing plate (400) and settle on the ground, the frame (100) is firmly fixed to the ground due to the roots. Accordingly, the ground becomes more solid due to the roots of the vegetation, and the risk of being lost is minimized.

In addition, since the press-fitting member (600) is directly connected to the ground, the load generated from the upper side (110) is directly transmitted to the ground, which can further increase the rigidity of the frame (100) and significantly reduce the risk of damage.

The step joint (700) inserted into the grid hole (GH) formed in the frame (100) of one layer is inserted into the grid hole (GH) of the frame (100) arranged in the layer above it. Accordingly, no gap occurs between the frames (100) forming the layers, and they are firmly positioned in place without any disorder.

FIG. 8 is an enlarged perspective view of the lattice bars (GF) and lattice holes (GH) formed in the frame (100), the first cover (200), the second cover (300), and the finishing plate (400) in the stairs of the present invention. Referring to FIG. 8, the lattice bars (GF) are formed in a grid shape with staggered lengths, and the lattice holes (GH) are formed between the lattice bars (GF). The stairs of the present invention are formed with a lattice structure in order to provide a unique landscape by exposing the shoots, stems, leaves, and roots of plants to the outside through the lattice holes (GH), while also firmly supporting the load generated by pedestrians walking.

The depth (D) of the lattice holes (GH) forming the above lattice structure is formed to be the same as the width (W) of the lattice bars (GF) surrounding the lattice holes (GH). By deepening the depth (D) of the lattice holes (GH), the sprouts of the plants are protected from being trampled, and stems and leaves can grow from the sprouts. In addition, even if the leaves are trampled by walking by protruding out of the frame (100) through the lattice holes (GH), the roots and stems are protected from being trampled, thereby maintaining the vitality of the plants, and through this, the growth of the roots is promoted, thereby preventing the loss of the soil of the plants and the ground.

In addition, since the depth (D) of the lattice hole (GH) becomes the thickness (D) of the lattice bar (GF), even if a load due to walking is applied to the upper surface (110), the thickness (D) of the lattice bar (GF) is thick, so that the lattice bar (GF) does not bend and can be prevented from being damaged.

In addition, by making the width (W) of the lattice bar (GF) the same as the depth (D) of the lattice hole (GH), the area occupied by the lattice hole (GH) on any one surface of the frame (100), the first cover (200), the second cover (300), or the finishing plate (400) can be made sufficiently large, and many lattice holes (GH) are formed to promote the growth of vegetation.

The length (S) of the lattice hole (GH) is formed larger than the depth (D) of the lattice hole (GH) and the width (W) of the lattice bar (GF). In the present invention, since the stems, leaves, and roots of the vegetation are exposed to the outside of the frame (100) through the lattice hole (GH), the lattice hole (GH) must be sufficiently large, and the lattice bar (GF) must not hinder the growth of the vegetation. The vegetation is induced to grow and be exposed to the outside of the frame (100) through the lattice hole (GH) of sufficiently large length (S), and the stairs can be decorated lushly.

When a lattice bar (GF) is formed in the front side (130), the rear side (140), the first cover (200), the second cover (300), and the finishing plate (400) that support the upper side (110) and the lower side (120) of the frame (100), the longitudinal direction of the lattice bar (GF) is formed diagonally. Accordingly, it can withstand not only a vertical load but also a horizontal load and a diagonal load.

100:Frame
110:Upper side 111:Upper through hole 120:Lower side 121:Lower through hole
130:Front side 140:Rear side 150:Left side 160:Right side
170: 1st coupling hole 180: 2nd coupling hole 190: Receiving hole
200:1st cover 300:2nd cover 400:Finishing plate
500: Vegetation bag 600: Pressing bar 700: Step joint bar 800: Fixed clip
900: Joint plate 910: Spacer 920: First connecting cover 930: Second connecting cover
B: Unit block GH: Grid bar GH: Grid hole CS: Closed surface

Claims (9)

A frame (100) formed in a hexahedral shape, with the left side (150) and the right side (160) being open sides, and all sides except the left side (150) and the right side (160) being formed with lattice bars (GF) of a lattice shape and lattice holes (GH) which are perforations between the lattice bars (GF);
A joint plate (900) is arranged between adjacent frames (100) in the horizontal direction on the left and right, blocks the right side (160) of the frame (100) located on the left and the left side (150) of the frame (100) located on the right, and forms a lattice bar (GF) and a lattice hole (GH);
A first connecting cover (920) that protrudes to the right from a spacer (910) formed in the center of the above connecting plate (900) and is inserted into the left side (150) of the frame (100) to support the upper side (110) and lower side (120) of the frame (100);
A second connecting cover (930) that protrudes to the left from the spacer (910) of the above connecting plate (900) and is inserted into the right side (160') of another frame (100') positioned adjacent to the above frame (100), and supports the upper side (110') and the lower side (120') of the frame (100');
A vegetation soil bag (500) is placed inside the frame (100), filled with vegetation soil and seeds, and the sprouted vegetation is exposed through the grid holes (GH) formed on the upper side (110) of the frame (100) and the joint plate (900).
Vegetated modular staircase.
In the first paragraph,
It further includes a press-in member (600) that penetrates an upper penetration hole (111) formed in the center of the upper side (110), a vegetation soil bag (500) accommodated in the receiving hole (190) of the frame (100), and a lower penetration hole (121) formed in the center of the lower side (120) to fix the frame (100) to the ground.
Vegetated modular staircase.
In the first paragraph,
Among the vertically adjacent frames (100), a step joint (700) is further included, which is inserted into a grid hole (GH) formed on the upper surface (110) of the lower frame (100) and a grid hole (GH) formed on the lower surface (120) of the upper frame (100), thereby vertically connecting the frames (100) in steps.
Vegetated modular staircase.
In the first paragraph,
The spacer (910) formed in the center of the above-mentioned joint plate (900) and the first connection cover (920) and the second connection cover (930) on both sides thereof are formed integrally;
A plurality of adjacent frames (100, 100') are connected horizontally by a first connecting cover (920) and a second cover (930);
Vegetated modular staircase.
In the first paragraph,
The above first connection cover (920) or second connection cover (930) is in surface contact with the lower surface of the upper side (110) at the top and the upper surface of the lower side (120) at the bottom, respectively.
The first connection cover (920) or the third connection cover (930) above has one or more grid holes (GH) arranged in a parallel manner in the front-back direction in the left-right horizontal direction.
Vegetated modular staircase.
In the first paragraph,
The first connection cover (920) or the second connection cover (930) above has a closed surface (CS) formed in the front-back direction without a grid hole (GH) at the left end and the right end, respectively.
Vegetated modular staircase.
In the first paragraph,
The length (S) of the above grid hole (GH) is formed longer than the depth (D) of the grid hole (GH) and the width (W) of the grid bar (GF), and the depth (D) of the grid hole (GH) is formed equal to the width (W) of the grid bar (GF) surrounding the grid hole (GH), thereby inducing exposure of vegetation to the outside of the frame (100).
Vegetated modular staircase.
In Article 7,
The upper and lower lengths and front and rear lengths of the above spacer (910) are formed to be the same as the upper and lower lengths and front and rear lengths of the frame (100).
Vegetated modular staircase.
In Article 7,
The frame (100) is formed with a closed surface (CS) having a width equal to or longer than the width (W) of the lattice bar (GF) from the outermost lattice hole (GH).
Vegetated modular staircase.