JP3092517B2 - Floor - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a staircase, and more particularly to a staircase having excellent water absorption and drainage properties and improved comfort and safety.

[0002]

2. Description of the Related Art Generally, the surface of a staircase is generally covered with concrete, tile, natural stone, iron plate or the like. Because these surface members do not have a water-permeability function, especially in the case of outdoor stairs, puddles are formed on the treads of the stairs due to rain, and when people climb up,
Legs are slippery and often dangerous. Further, even when the amount of rainfall is small, a thin film of water is formed on the tread of the stairs and the frictional resistance during walking is reduced, so that it is slippery and dangerous. Sliding down the stairs could lead to falling downstairs, resulting in sprains, broken bones, or, in very serious cases, even fatal accidents. To prevent slip accidents from the stairs, rubber studs may be provided at the ends of the treads of the stairs, but there was a danger of falling when the stairs climbed. Also, even on stairs where handrails are installed, both hands are often occupied by umbrellas, luggage, etc. during rainfall, and the feet slip and are often dangerous.

[0003]

SUMMARY OF THE INVENTION It is an object of the present invention to provide a staircase in which a foot does not slip easily even during rainfall so that a pedestrian can pass comfortably and comfortably.

[0004]

Means for Solving the Problems The present inventors have studied the stairs in which puddles and a water film on the surface are not formed due to rainfall, are less slippery, and allow pedestrians to walk with peace of mind, and have reached the present invention.

That is, according to the present invention, at least a part of the surface layer is made of a water-permeable pavement material , and
Slip resistance when wet surface is more than 40BPN
It is characterized by a stair having a value.

[0006]

DETAILED DESCRIPTION OF THE INVENTION The steps of the present invention have at least a surface layer.
Also a portion, preferably at least a portion of the tread is formed of a water-permeable paving material, and, in the water-permeable pavement
The surface has a wet sliding resistance value of 40 BPN or more
I have.

[0007] The water-permeable pavement used in the present invention is a material having a void inside the pavement and having continuous pores extending from the front surface to the back surface or the side surface.

As such a water-permeable pavement material, a water-permeable pavement material in which aggregate particles are bound with a binder to make a pavement,
A water-permeable pavement material in which an aggregate is formed into a tile or block shape in advance is exemplified.

[0009] In the water-permeable pavement material in which the aggregate particles are bound by a binder and paved, preferably, the aggregate particles and the binder are mixed at a construction site using cement, synthetic resin, or the like as the binder.

[0010] The water-permeable pavement material in which the aggregate is formed into a tile or block shape in advance is preferably made of cement or resin as a binder to impart strong shape retention. In particular, in the case of tiles, the aggregate is sintered by high-temperature heating and bonded through a sintered binder.
Such a preformed permeable pavement material is laid at a construction site.

Examples of the preformed permeable pavement material include permeable asphalt concrete, permeable concrete, permeable concrete plate, permeable interlocking block, permeable ceramic style, and permeable ceramic block. In particular, permeable ceramic styles and permeable ceramic blocks have extremely low surface contamination due to the sublimation phenomenon of cement-based blocks and flat plates, and may cause clogging of pores due to heat as in asphalt concrete. It is more preferable because it is extremely small.

The water-permeable pavement used in the present invention preferably has an initial water permeability measured by JIS A-1218 of 1 × 10 ⁻² cm / sec or more, more preferably 1 × 10 ⁻² cm / sec.
^-1 cm / sec or more. Permeability is 1 × 10 ^-2 cm / sec
If it is above, it has sufficient ability to pass rainwater of 50 mm / hr, which is the general rainfall intensity used for designing civil engineering structures.

The permeable pavement material used in the present invention has a flexural strength of 4 as measured by JIS A-5304 in order not to be damaged by human walking or the like and to withstand long-term use.
0 kgf / cm ² or more, preferably 50 kgf / cm ² or more.
More preferably, it is f / cm ² or more. When the permeable pavement is a tile or a block, it is important that the bending strength is 40 kgf / cm ² or more.

Further, the permeable pavement material used in the present invention can pass through without slipping by a person, and therefore, the ASTM E 303
The slip resistance of the surface when wet, measured at -66T,
Der more 40BPN is, good Mashiku is greater than or equal to 50BPN. If the surface has a sliding resistance value of 40 BPN or more, even if the pavement surface is wet during or after rain, the person will not slip.

As a water-permeable pavement material satisfying such properties, a water-permeable ceramic style using a porcelain tile or the like as a raw material is preferably exemplified.

In the staircase of the present invention, a permeable pavement material is used for the staircase.
Although it is used for at least a part of the surface layer , preferably at least a part of the tread, the entire surface of the stairs may be made of a permeable pavement, or the whole of the tread may be made of a permeable pavement. Alternatively, the surface layer end of the stairs, the periphery of the discharge port, and the like may be formed as another member. In addition, for example, a pavement material having a function of draining falling rainwater or the like from a concrete or the like constituting the stairs or a function of draining the rainwater from the side surface of the pavement material may be used. Further, the landing on the way along the stairs or the surface layer on the ground in contact with the stairs may be made of a permeable pavement material.

Further, in the staircase of the present invention, it is preferable to provide a reinforcing member for the purpose of preventing the tread end from being damaged.

By using a water-permeable pavement material, rainwater and the like can be absorbed into the water-permeable pavement material, and the occurrence of puddles can be prevented, and the amount of water adhering to the surface can be reduced. As a result, not only can pedestrians walk without worrying about slipping, but also in structures with limited width such as stairs, the width of stairs that people can walk is limited, and puddles can occur during rainfall and watering and cleaning This solves the problem that it is difficult to pass. In addition, especially in the case of metal stairs, in the summer months, high heat can be generated due to solar radiation, which was uncomfortable.However, by gradually evaporating the water absorbed by the permeable pavement material, the stairs were heated to a comfortable temperature There is also the effect of keeping.

In the steps of the present invention, the water absorbed by the permeable pavement passes through the inside of the permeable pavement and is drained to the base material or the side surface of the permeable pavement. Since the area of the stairs is not so large, a structure for discharging the water to the side surface of the permeable pavement material and a structure for collecting water in a drainage device installed on the stairs and discharging the water through a drain pipe are easy to take. Therefore, the entire groundwork of the pavement material does not need to be water-permeable, and the water-permeable pavement material may be applied on ordinary concrete or mortar. When the permeable pavement material is in the form of a tile, it may be fixed with a kneaded mortar or mortar as usual, but may be bonded with a resin.

In general, the base of the stairs often has no water permeability, such as concrete or iron.
Preferably, the absorbed water is drained to the outside,
More preferably, the water is drained to the outside from the step end. Further, in the case that can be installed drainage pipe in a stepped cross-section, it is preferable to drained into the drainage system of the stairs and through the water pipes <br/>.
It is also preferable to provide a gap between the water-permeable pavement material and the groundwork so that the water can move more smoothly. It is more preferable to form a groove as at least one of the surface of the base material and the back surface of the water-permeable pavement material. Further, a gradient can be provided for positive drainage.

[0021] The stairs of the present invention use a permeable pavement material on the surface of the stairs.
Since it is used for at least a part of the layer , preferably for at least a part of the tread, it has many functions other than the water permeability function.

The water-permeable pavement used in the present invention is prepared by using a pre-colored ceramic aggregate.
Color selection can be made in consideration of the scenery, and there is no fading due to peeling or abrasion like paint, and the durability is good. Furthermore, in order to make a stair with a high design quality, it is possible to combine permeable pavement materials of various colors.

Further, the water-permeable pavement used in the present invention has a sound absorbing effect by a void in the water-permeable pavement,
The noise associated with walking can be reduced, resulting in quieter and more comfortable stairs.

It is also possible to combine a tile-shaped permeable pavement material and a tile for guiding visually impaired persons,
By using the water-permeable tile for guiding the visually impaired, there is an effect that not only the feet are made less slippery but also the tip of the walking stick is made less slippery.

[0025]

The present invention will be described in more detail with reference to the following Examples, but it should not be construed that the present invention is limited thereto.

Example 1 The working width is 100 × 200 mm and the thickness is 30 mm.
The water permeability determined in accordance with JIS A-1218 is 4 × 10 ^-2 cm /
Second, a water-permeable ceramic style having a wet sliding resistance value of 54 measured according to ASTM E 303-66T was laid. The final ground part has a working width of 100 × 200 mm and a thickness of 60 mm, and the permeability determined in accordance with JIS A-1218 is 6 × 10 ^-2 cm / sec, in accordance with ASTM E 303-66T. A permeable ceramic block having a determined wet sliding resistance value of 51 was laid.

[0027] The water-permeable ceramic style is drained to the lower side from the end, and then drained into the ground at the final ground-permeable ceramic block portion. In between, a non-woven fabric made of polyester was laid to prevent sand from flowing out into the crushed stone. A cross-sectional view of this staircase is shown in FIG.

When the stairs were observed during rainy weather, it was confirmed that the rainwater was absorbed by the permeable ceramic style and was discharged from the end of the tile to the lower side, and no puddles were generated. In addition, no bounce of rainwater was observed. Even if water is sprinkled at a rate of 18 liters / minute with a hose, it is still absorbed by the permeable ceramic style, discharged from the end of the tile to the lower side, and penetrates into the ground at the permeable block at the final ground. I was able to confirm that. I climbed up the stairs in rainy weather, but I could walk with confidence without slipping.

[0029]

The stairs of the present invention do not have puddles or a water film on the surface during rainfall, are less slippery, and can be safely passed by pedestrians. Furthermore, stairs with a high design can be made in consideration of the scenery, and quieter and more comfortable stairs can be obtained.

The stairs of the present invention are suitable not only for park stairs, promenade stairs and emergency stairs to be installed outdoors, but also for outdoor event hall seats that also serve as stairs.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of a staircase exemplified in the present invention.

[Explanation of symbols]

 1: Permeable ceramic style 2: Permeable ceramic block 3: Sand cushion 4: Crushed stone 5: Discarded concrete 6: Concrete 7: Hardened mortar 8: Sticking mortar 9: Non-woven fabric

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int.Cl. ⁷ , DB name) E04F 11/00-11/17

Claims (5)

(57) [Claims] At least a part of the surface layer is made of a permeable pavement material , and the surface of the permeable pavement material is 4%.
A staircase having a wet sliding resistance value of 0 BPN or more . 2. The staircase according to claim 1, wherein the water-permeable pavement material has a water permeability of 1 × 10 ⁻² cm / sec or more. 3. The staircase according to claim 1, wherein the permeable pavement material has a bending strength of 40 kgf / cm ² or more. 4. The staircase according to claim 1, wherein a gap is provided between the permeable pavement material and the groundwork. 5. The staircase according to claim 4 , wherein the void is a groove provided on at least one of the surface of the foundation and the back of the water-permeable pavement material.