JPH0626161A - Damping board-equipped staircase - Google Patents

Abstract

PURPOSE:To inhibit and prevent the generation of noise during walking upstairs or downstairs by stacking a structural member for staircase against a metal board whose material and thickness are identical to those of the staircase structural body as a damping plate and joining both of them. CONSTITUTION:A stair tread material 1 uses a metal plate, which has a specified thickness and forms a strip-pat-terned surface, as a structural member. A metal-made damping plate 2 made of the same material and the same thickness is stacked against the bottom of the structural member and they are joined with rivets 3. A slit 4 is formed on the edge of the tread as a means of a safety tread noising. The joint surface between the structural member and the damping plate are machined to a coarse surface, thereby enhancing damping properties. These structural members are divided into several parts and joined as the damping plate 2. Vibration energy at this joint section is arranged to be absorbed as friction energy, thereby exerting the specified damping properties.

Description

Detailed Description of the Invention

[0001]

The present invention relates to buildings, factories, offices,
By using a damping plate for the structural members of the stairs for elevating people used at home, etc., the effect of significantly suppressing the noise generated when elevating people and preventing the noise, which is a social problem in environmental conservation, is achieved. Regarding the stairs to have.

[0002]

2. Description of the Related Art Of the stairs for elevating a person installed outside or inside a building, a home or the like, which is the object of the present invention, an outdoor staircase such as a building or an apartment is generally made of an iron plate. There is. And while plastic is stretched over the iron plate to prevent slipping and paint is applied for corrosion resistance, noise prevention measures are extremely inadequate, and when a person moves up and down, a large noise that echoes in the surroundings is generated. It has occurred. For example, when a newspaper delivery person moves up and down in the early morning and at night, a noise reverberates and a great noise is generated, which causes social problems such as disturbing sleep.

[0003] In the stairs for home use, wood boards are mainly used, and in many cases mats such as carpets are stretched from the viewpoint of anti-slip and vibration damping. A creaking noise is generated. Therefore, even in the case of stairs for home use, the number of pre-fabricated and concrete-structured multi-storey buildings has increased in recent years, and in addition to aesthetics, quietness and durability in a house are required.

[0004]

SUMMARY OF THE INVENTION It is an object of the present invention to provide a stairway that does not disturb sleep by producing a small noise even when a person moves up and down in early morning or at night.

[0005]

MEANS FOR SOLVING THE PROBLEMS In accordance with the present invention, a stairway for elevating and lowering formed by using a metal plate as a structural member is a metal plate having substantially the same thickness as the metal plate and forming the staircase. A damping plate is used which is composed of a damping plate which is superposed on the upper surface or the lower surface of the plate and a joining member which joins the structural member and the damping plate to each other. A staircase using a vibration damping plate having a plate attached, which has an effect of preventing and preventing noise generated when a person goes up and down and a staircase having an anti-skid effect.

That is, the present inventor has paid attention to the fact that the structural members vibrate at specific frequencies depending on the material and shape, but do not periodically vibrate if the structure does not have integrity. The present invention has been completed by discovering that the vibration energy can be absorbed as frictional energy at this joint portion by dividing the member into the above-mentioned members and joining them as a vibration damping plate to exhibit a vibration damping effect.

As the metal plate used in the present invention, ferritic stainless steel, copper, aluminum or the like can be used.
The metal plate used as the structural member and the metal plate used as the damping plate have substantially the same thickness. When the joint surface between the structural member and the vibration damping plate is processed into a rough surface, the vibration damping property is increased.
Further, by using a striped plate for the tread-side structural member or the vibration damping plate that constitutes the stairs, the slip resistance is improved.

A bolt or a rivet can be used as the joining member. Rivet as a joining member,
It is desirable to use 5 to 12 rivets per 100 cm ² . Furthermore, the area ratio of the rivet is 1 to the area of the metal plate.
It is desirable to set the diameter to about 2% and to determine the diameter of the rivet accordingly.

[0009]

EXAMPLE An example of the present invention will be described below. FIG. 1 is a sectional view showing a structure of a stair tread structure member according to an embodiment of the present invention before bending and forming. The tread member 1 of the stairs is a ferritic stainless steel SUS having a striped pattern formed on the surface.
430, using a metal plate with a plate thickness of 3.2 mm as a structural member,
A damping plate 2 made of a metal plate having the same material and the same thickness as that of the tread member 1 is superposed on the lower surface thereof and joined by a rivet 3 which is a joining member. A groove portion 4 for preventing slippage is formed on the tread edge portion.

FIG. 2 shows a cross section of a member for forming the stair tread portion manufactured as described above, which has been formed into a stair tread shape. The forming process is an easy forming process in which only the tread member of the staircase shown in FIG. 1 is bent. In this embodiment, the width of the tread is about 1.2 m.

The results of the stair climbing test made in this example show that the noise when a person puts on leather shoes goes up and down is about 70 to 60 phon, which is the same as that of the conventional steel plate staircase. In comparison, a noise reduction of about 10 phon was observed, and the effect of the present invention was confirmed.

In this embodiment, one embodiment of the stairs has been described, but the present invention can be applied to a shed or door of a garage.

[0013]

EFFECTS OF THE INVENTION A staircase using the damping plate of the present invention is a tread member of a stairway formed by using a metal plate as a structural member, and a metal plate having substantially the same thickness as the metal plate. It consists of a damping plate laminated on the upper or lower surface and a joining member that joins the structural member and the damping plate, and if necessary, forms a striped pattern on the tread side plate of the stairs to prevent slippage. It is characterized by forming a groove on the edge of the tread, or using ferritic stainless steel for the metal plate. It has the effect of reducing noise by about 10 phonons. Therefore, it has a great contribution to the improvement of the social environment and is highly practical.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing a structure of a stair tread structure member according to an embodiment of the present invention before bending and forming.

FIG. 2 is a cross-sectional view of the structural member of the staircase shown in FIG. 1 after being bent and formed into the shape of the stair tread.

[Explanation of symbols]

 1 Tread member (plate with stripes) 2 Damping plate 3 Rivets 4 Groove

Claims (2)

[Claims] 1. An elevating staircase formed by using a metal plate as a structural member, which is superposed on the upper surface or the lower surface of a metal plate having substantially the same thickness as the metal plate and forming the staircase. A staircase using a damping plate, comprising a damping plate and a joining member that joins the structural member and the damping plate. 2. A staircase using a damping plate according to claim 1, wherein a striped plate is used on the tread surface of the staircase.