JPH11303352A - Staircase tread - Google Patents

Abstract

PROBLEM TO BE SOLVED: To shorten the term of works and to prevent the noise generated in ascending and descending of a staircase by burying a structural member and mounting nuts on the bottom surface of a glass fiber-reinforced concrete tread extending over the whole length, and laying a decorative material on the upper surface. SOLUTION: A corner tile 2 is used for one lateral end part of laid tiles to form a part of the side surface, and a square pipe 3 is fixed in inclined state between the frame of a landing at the upper end of a staircase and the ground. A receiving base having a through-hole 3a is horizontally fixed to the upper surface of the square pipe 3 with a desired space, and a rubber vibration isolator 5 is stuck to the exposed surface of the buried square pipe 3. A bolt is inserted from the reverse side of the receiving base and screwed to the long nut 4 of a tread 1 to fasten the tread 1 through the rubber vibration isolator 5. The tread 1 is successively mounted on the receiving base in the same manner, the tread 1 is also mounted on the landing, and the vertical bar of a handrail is inserted to the through-hole 3a of each tread 1 and fixed to the square pipe 3. According to this, the bed material for staircase is dispensed with, and the noise in ascending and descending can be suppressed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure of a stepping plate made of glass fiber reinforced concrete (GRC) which is particularly suitable for an outer staircase.

[0002]

2. Description of the Related Art Conventionally, as an external staircase installed outside a building, generally, a sasara girder and a tread plate on both sides of the stairs are made of iron plate or concrete. The iron plate stairs have a simple structure and a comparatively short construction period. In addition, there is a problem that the construction of concrete is costly in construction time and cost.

[0003]

SUMMARY OF THE INVENTION The present invention provides a staircase which is easy to install, has a short construction time, has an excellent appearance, and has no noise.
In particular, it is an object of the present invention to provide a tread for use in an outer staircase.

[0004]

In order to achieve the above-mentioned object, a stair plate for stairs according to the present invention is a tread plate made of glass fiber reinforced concrete, and a structural member and a mounting nut extending over the entire length are provided on the bottom surface thereof. It is buried, characterized in that a decorative material is laid on the top surface, a through hole is provided near at least one end in the longitudinal direction, and a cushioning material is further provided on the bottom surface It is attached.

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the accompanying drawings. 1 and 2 are a plan view and a bottom view, respectively, of an embodiment of a step board for stairs according to the present invention. FIG. 3 is a longitudinal sectional view when the step board is attached to a pedestal. Stepping board, 2 is a decorative material such as tile, marble, artificial stone, etc., 3 is a square tube as a structural member, 4 is a long nut as a tightening nut, 5 is a cushioning material such as a vibration-proof rubber, 6 is a square tube ( 7 is a cradle, 8 is a handrail, and 9 is a bolt.

The stepping plate 1 for a staircase of the present invention is made of glass fiber reinforced concrete (GRC) and has a square tube 3 and a long nut 4 extending over its entire length on its bottom surface. The bolt 9 can be inserted and screwed into the receiving stand 7 only at the center without providing a base material for the stairs, or both ends can be supported by the receiving stand 7. On the other hand, since the decorative material 2 is laid and fixed on the upper surface of the tread plate 1, the appearance is excellent, and if the decorative material 2 is appropriately selected, it can be used for indoor stairs. Further, if a through hole 3a is provided near one end or both ends in the longitudinal direction of the tread plate 1, it is convenient to attach the handrail 8 or the like. If a cushioning material 5 such as a vibration-proof rubber is attached to the bottom surface of the tread plate 1, noises such as squeaking noises and rubbing noises during the ascent and descent are hardly generated.

[0007]

Next, an embodiment of the present invention will be described. The outer shape of the treadle 1 is about 300 mm in width, about 940 mm in length, and about 50 mm in thickness. It is made of GRC and is about 60 mm from both ends of the upper surface. Is a tile of 92 mm square and 9 mm thick as a decorative material 2 laid and fixed with a joint width of 8 mm.
One end of the tile in the width direction is a corner tile 2a, which forms a part of the side surface.

On the bottom surface, two square tubes 3 of 30 × 60 mm square, 2.3 mm thick × 880 mm long are embedded in parallel, and a pair of side tubes near the center of each square tube 3 are provided. A long nut 4 having an inner diameter of 10 mm and a length of 25 mm is welded and buried at a position opposed to the center and opened to the bottom surface.
Further, a through hole 3a having a diameter of about 15 mm penetrating the tread plate 1 is formed near one end of the tread plate 1 in the longitudinal direction. The exposed surface of the square tube 3 buried in the bottom surface of the step board 1 near the long nut 4 has a thickness of about 6 m.
A vibration-proof rubber as a disk-shaped cushioning material 5 having a diameter of about 50 mm is attached.

Next, a description will be given of a case in which a stair is constructed using the stairs 1 of the above-described embodiment. A 4.5 mm thick, 125 x 75 mm square 1 between the landing platform (not shown) at the top of the stairs (not shown) and the ground foundation (not shown)
The square tube (step girder) 6 is fixed at an inclination of about 40 °, and the upper surface of the square tube (stair girder) 6 has a width of 240 mm,
4 for screwing the treadle 1 with a 300 mm long iron plate
A receiving table 7 having a plurality of through holes 7a is fixed at desired intervals with the upper surface horizontal.

On the upper surface of the cradle 7, the step plate 1 is provided.
Is mounted, and a bolt 9 is inserted through the through hole 7a from the back surface of the receiving stand 7 and screwed into the long nut 4 of the tread plate 1 so that the tread plate 1
Tighten. At this time, the anti-vibration rubber 5 is sandwiched between the pedestal 7 and the footboard 1. In this way, the tread 1
Is attached to each pedestal 7, and similarly, when the tread 1 with a different position of the long nut 4 is attached to the landing, the through hole 3 of each tread 1 is attached.
The stairs are completed by inserting the lower end of the vertical bar of the handrail 8 through a and fixing it to the square tube 3.

As described above, according to the present invention, the finishing work of the outer wall facing the stairs can be performed in a state where the gantry or the cradle 7 of the landing is fixed (there is no step board), so that the stairs do not hinder the work. . When both ends of the tread plate 1 are supported, long nuts 4 for mounting are embedded near both end portions of the tread plate 1. Note that the dimensions of the above-described stair tread 1, the material of the decorative material 2, the dimensions of the cushioning material 5, and the like can be appropriately selected as needed.

[0012]

As described above, the step board for stairs according to the present invention is made of GRC and has a structural member and a mounting nut which are buried on the bottom surface over the entire length, so that the base material for the stairs is not provided, and It can be screwed to a pedestal of only the part, or both ends may be supported by a pedestal. Furthermore, a decorative material such as tile, marble, artificial stone or the like is laid on the upper surface, so that the appearance is excellent, and if this decorative material is appropriately selected, it can be used for indoor stairs.

In addition, if a through hole is provided near at least one end in the longitudinal direction of the tread plate, it is convenient to attach a handrail or the like. With this arrangement, practically remarkable effects are obtained, such as the difficulty in generating noise during ascent and descent.

[Brief description of the drawings]

FIG. 1 is a plan view of an embodiment of a stair tread according to the present invention.

FIG. 2 is a bottom view of one embodiment of a step board for stairs according to the present invention.

FIG. 3 is a longitudinal sectional view when the tread plate of the present invention is attached to a receiving stand.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Step board 2 Tile 3 Square tube 3a Through hole 4 Long nut 5 Anti-vibration rubber (buffer material) 6 Square tube (stair girder) 7 Cradle 7a Through hole 8 Handrail 9 Bolt

Claims (3)

[Claims] 1. A step board made of glass fiber reinforced concrete, wherein a structural member and a mounting nut are buried over the entire bottom surface thereof, and a decorative material is laid on an upper surface thereof. For treads. 2. A stair tread according to claim 1, wherein a through hole is provided near at least one end in the longitudinal direction. 3. The stair tread according to claim 1, wherein a cushioning material is further attached to the bottom surface.