JP3091718B2 - 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 capable of reducing the generation of squeaking noises when moving up and down.

[0002]

2. Description of the Related Art A riser of a staircase has an upper end fitted into a groove having a bottom formed on a lower surface of the tread plate, and is fixed using a fixing tool such as a nail to support the tread plate.

[0003]

However, in such a conventional staircase, the tread plate is bent by the load applied to the tread plate at the time of ascending and descending, and the inner surface of the bottomed groove of the tread plate which comes into direct contact rubs against the riser plate. There is a problem that squeak noise is generated.

[0004] Further, there are also problems such as difficulty in assembling the riser and the tread plate due to errors in the thickness of the riser plate, errors in the groove width of the bottomed groove, warp of the riser plate, and the tread plate. is there.

The present invention has been devised to solve such a problem, and an object of the present invention is to provide a staircase capable of suppressing the generation of squeak noises when moving up and down.

[0006]

According to the present invention , a bottomed groove is formed at the front end of the lower surface of the tread plate so that the upper end of the riser plate can be fitted therein.
In both cases, the bottomed groove is inclined so as to approach upward.
Horizontal bottom surface connecting between the groove wall and the upper end of the groove wall
Upward by being surrounded by the inner surface consisting of
The width of the groove is reduced, and a groove-shaped protection frame made of a hard material is fitted on the upper edge of the riser plate fitted in the bottomed groove,
And the upper surface of the protective frame, with fixing the elastic member abutting on said bottom surface of the bottomed groove, whereby the side edges of the protective frame is contacted with the groove wall surface of the bottomed groove, the protective
The frame is a staircase characterized by being in line or point contact with the inner surface of the bottomed groove .

According to a second aspect of the present invention, there is provided the staircase according to the first aspect, wherein the width of the bottomed groove decreases upward.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. In FIGS. 1 and 2, the staircase 1 of the present invention has a bottomed groove 4 in which the upper end of the riser plate 3 can be fitted, and a riser plate fitted in the bottomed groove 4. A groove-shaped protection frame 6 made of a hard material is fitted on the upper edge of the groove 3, and an elastic material 5 that is in contact with the upper bottom surface 4 a of the bottomed groove 4 is fixed to the upper surface of the protection frame 6.

In the present embodiment, the bottomed groove 4 is formed in a shape in which the groove width is reduced upward.

The treads 2 and the risers 3 are supported by appropriate support means (not shown) such as a power girder, a side girder, and a skirting board attached to the side plate.

In the present embodiment, the tread plate 2 is made of a horizontal rectangular wooden plate-like body, and on the tip side and lower surface of the stairs 1 in the descending direction, there are oblique groove wall surfaces 4b which are inclined upward to approach each other. 4b and the bottomed groove 4 having an upwardly reduced groove width by being surrounded by an inner surface composed of the horizontal upper bottom surface 4a that connects between the upper ends of the groove wall surfaces 4b and 4b.
Are continuously provided in parallel with the tip surface 2a of the tread plate 2.

In the present embodiment, the riser plate 3 is made of a vertical rectangular wooden plate, and a groove-shaped protection frame 6 made of a hard material is fitted to an upper edge thereof.

The protective frame 6 comprises a long base piece 15 which is arranged in contact with the horizontal upper end surface 3a of the riser plate 3 by being fitted to the riser plate 3; A pair of hanging pieces 16, 16 abutting on both surfaces of the riser plate 3 to form a groove having a U-shaped cross section with the groove portion facing downward.

The protective frame 6 is made of metal such as aluminum or iron, plastic, hard rubber, or the like, and is harder than the tread plate 2 and is caused by a displacement of the tread plate 2 and / or the riser plate 3 when the stairs 1 are moved up and down. It is formed from the hard material having a hardness enough to withstand abrasion.

By making the surface of the protective frame 6 a smooth surface, it is possible to reliably prevent the noise caused by the friction between the protective frame 6 and the inner surface of the bottomed groove 4 of the tread plate 2 when the stairs 1 are moved up and down. It is preferable from the viewpoint that it can be performed.

The elastic member 5 is made of soft rubber or the like having a long rectangular cross section, and is fixed to the upper surface of the base piece 15 of the protective frame 6 using an adhesive or the like.

The thickness T3 of the riser 3 and the protection frame 6
The width W6 between both side edges of the base piece 15, the width W5 of the elastic member 5 in a state where it is not elastically deformed before the riser plate 3 is attached, and the dimensions of the bottomed groove 4 are as follows. When the upper end of the riser plate 3 is fitted and attached using an adhesive or the like, the elastic material 5 having the width W5 smaller than the width W4 of the upper bottom surface 4a is attached to the upper end surface 3a of the riser plate 3 and the upper bottom surface. The protective frame 6 is elastically deformed, particularly elastically compressed, so that both side edges of the base piece 15 of the protective frame 6 contact the groove wall surfaces 4b, 4b.

Accordingly, the tread plate 2 is securely supported by the riser plate 3 via the elastic member 5 and the protective frame 6, and
The protective frame 6 is provided between the riser 3 and the upper bottom surface 4a of the bottomed groove 4.
And the elastic material 5 intervene, so that not only the upper end surface 3a but also both surfaces of the riser plate 3 do not directly contact the groove wall surfaces 4b, 4b, and it is possible to reduce the generation of squeak noise when the stairs 1 go up and down. I can do it.

Since the protective frame 6 is made of a hard material,
The attachment of the elastic member 5 to the protective frame 6 using an adhesive or the like is facilitated, and the groove wall surfaces 4b, 4b,
Only the protective frame 6 made of a slippery hard material comes into contact with b, and the tread 2 and the riser 3 do not come into direct contact with each other. Can be prevented.

[0020] The Contact, for pre-Symbol chromatic bottom groove 4 exhibits a shape that reduces the groove width upward, when the protective frame 6 is in contact with the <br/> inner surface of the bottom-equipped grooves 4, portions of the contact a, a (shown in FIG. 1) can be a line or point contact rather than surface contact, can more reliably prevent the audible noise caused by rubbing between the protective frame 6 and the tread plate 2.

Further, since both side edges of the base piece 15 of the protective frame 6 are in contact with the groove wall surfaces 4b, 4b of the bottomed groove 4, the generation of squeak noise caused by the friction between the tread plate 2 and the riser plate 3 is reduced. While being prevented, the riser plate 3 can be reliably held at the contact portions A and A of the bottomed groove 4 without being displaced.

Further, the fact that the bottomed groove 4 is shaped so as to decrease the groove width upwards means that there is an error in the thickness of the riser 3, an error in the groove width of the bottomed groove 4, a rise in the riser 3, The warp of the tread 2 can be absorbed to facilitate the assembling of the riser 3 and the tread 2, and a design tolerance can be secured in combination with the elastic action of the elastic member 5.

The rear end face 2b of the tread plate 2 on the rising direction side
Is attached to the lower surface and the lower side of the riser plate 3 that supports the leading end side of the tread plate 2 thereon by using well-known means such as a fixing tool such as a nail or a screw or an adhesive.

[0024]

As described in detail above, according to the first aspect of the present invention, the upper edge of the kick plate which is fitted into the bottomed groove formed at the front end side of the lower surface of the tread plate is made of hard material. Since a groove-shaped protective frame is fitted, and the upper surface of the protective frame is fixed with an elastic material that comes into contact with the upper bottom surface of the bottomed groove,
The tread plate is supported by the riser plate via the protective frame and the elastic material, so that not only the upper end surface but also both surfaces of the riser plate do not directly contact the inner surface of the bottomed groove, and the squeaking noise at the time of going up and down stairs, etc. Can be reduced.

Further, since the elastic material is fixed to the upper surface of the protective frame made of a hard material, the elastic material is attached to the upper surface of the riser plate through the protective frame made of the hard material using an adhesive or the like. It can be easily attached, and the inner surface of the bottomed groove is
Since only the surface of the protective frame made of the elastic material and the slippery hard material is used, there is no direct contact between the tread plate and the riser plate, and it is possible to more reliably prevent the generation of squeak noise when going up and down stairs.

Moreover, when the protective frame comes into contact with the inner surface of the bottomed groove,
Because can have made of easy hard material slip the protective frame, it can prevent buzzing due to friction between the step board and the protective frame of the lift or the like.

[0027] Further, since the pre-Symbol bottomed groove has a shape to reduce the groove width upward, the protective frame of the bottom-equipped grooves groove wall
Instead of surface-to- surface contact, a line or point contact can be made, so that noise caused by friction between the protective frame and the tread can be more reliably prevented.

The shape of the bottomed groove makes it possible to cope with errors in the thickness of the riser plate, errors in the groove width of the bottomed groove, warpage of the riser plate and treadle, etc. Can be easily assembled, and in combination with the elastic action of the elastic material, a design tolerance can be ensured and the manufacturing operation can be simplified.

[Brief description of the drawings]

FIG. 1 is a partial sectional view showing an example of an embodiment of the present invention.

FIG. 2 is a partially exploded perspective view thereof.

[Explanation of symbols]

 2 tread plate 3 riser plate 4 bottomed groove 4a upper bottom surface 5 elastic material 6 protection frame

Claims (1)

(57) [Claims] 1. The upper end of a riser is inserted into the lower end of a tread plate.
The bottomed groove is formed and the bottomed groove is directed upward.
The diagonal groove wall that leans toward
Surrounded by an inner surface consisting of a horizontal upper bottom surface connecting the upper ends
It is fitted to be by subtracting the groove width upward, and protective frame of groove shape made of a hard material the upper edge of the riser plate to be fitted into the bottomed groove by, and on the upper surface of the protective frame , together to secure the elastic member abutting on said bottom surface of the bottomed groove, whereby the side edges of the protective frame is contacted with the groove wall surface of the bottomed groove, the protective frame and the inner surface of the bottom-equipped grooves Line contact or
A staircase characterized by point contact .