JPH0610464A - Indoor staircase-cum-handrail - Google Patents

Abstract

PURPOSE:To make a handrail so as to be attached to a staircase whose distance between two symmetrical wall panel cores is of 910mm as securing a legally effective range. CONSTITUTION:A side girder to be attached to a wall panel opposite to a handrail 15 is halved into an upper girder material 20 and a lower girder material 21 in border of a staircase 16 and a kick plate 17, and an inserting groove 22, where the staircase 16 and the kick plate 17 are inserted into, is formed in space between both these girder materials 20 and 21. In this case, a surface of the upper girder material 20 is not projected out of a wall surface 13 and it is made to be flush with this wall surface 13 or it is hollowed from the wall surface 13 otherwise, thus a legally effective range of the staircase is secured in this way.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to ensuring a legally effective width of an indoor handrail staircase.

[0002]

2. Description of the Related Art Indoor floor plans are performed with the minimum center-to-center distance between columns and walls as the unit size, which is usually 91 units.
It is set to 0 mm. Therefore, in the details of the wall panels 11 on the left and right of the stairs, the distance between the cores is set to 910 mm, which is the unit size of the indoor floor plan, and the minimum thickness of the wall panel main body 27 is set to 64 mm.
Face material such as plasterboard and plywood with a thickness of 12 mm on the front and back of 7
Are bonded together, and the surface of the face material 28 is designed to be finished with paint or wall cloth.

The stair step plate 16 and the riser plate 17 are designed so that they can be attached by inserting them into the insertion grooves 22 of the side girders 18 attached to the wall panel main body 27.
It is designed to protrude about 18 mm from the wall surfaces 12 and 13.

Thus, in the conventional staircase, the wall panel 11
The dimension A between the cores is 910 mm, the thickness B of the wall panel body is 64 mm, and the thickness C of the face material 28 is
Is 12 mm, and the protruding dimension D of the side girder 18 is 18 m.
Since it is m, the dimension E between the left and right side girders is AB-
2 (C + D) = 910-64-2 × 30 = 786 (m
m), and a legal effective width of 750 mm is secured.

[0005]

As described above, the effective width is 7
When the handrail is attached to the conventional stairs of 86 mm, the diameter F of the pipe handrail 15 having a circular cross section, which is commonly used, is 30 to 3
Since it is 5 mm, and a gap G of about 30 to 40 mm is required between the wall surface 12 and the handrail 15 to improve its usability, the handrail 15 to be attached is about 79 m from the wall surface 12.
It will project m, and it will project 52 mm from the side girder 18.

As a result, the effective width L of the stairs is E-52 = 7.
Since it will be 34 (mm), if the conventional stairs are to be mounted with ease using handrails, the legal effective width cannot be secured.

Therefore, an object of the present invention is to attach a handrail conveniently to a conventional stairway in which the dimension A between the cores of the left and right wall panels is set to 910 mm in accordance with the floor plan unit size while ensuring the legal effective width. And

[0008]

According to the present invention, the left and right sides are sandwiched by wall panels 11, and a handrail 15 supported by an arm 14 protruding from one of the left and right wall surfaces 12 is provided. In the indoor handrail staircase 19 in which the right and left sides of the riser plate 17 are supported by the side girders 18 attached to the wall panel 11, the side girders attached to the wall panel facing the handrail 15 are attached to the step plate 16
Upper and lower girder members 20 and lower girder members 21 with the riser plate 17 as a boundary
The upper girder member 20 is divided into two parts, and an insertion groove 22 for inserting the step plate 16 and the riser plate 17 is formed between the girder members 20 and 21.
The surface of is not flush with the wall surface 13 and is flush with the wall surface 13 or is recessed from the wall surface 13.

That is, a staircase sandwiched between the left and right sides of a wall panel 11 constructed by attaching a face material 28 having a thickness C of 12 mm to the surface of a wall panel main body 27 having a thickness B of 64 mm and having a dimension A of 910 mm between cores. A pipe handrail 15 having a diameter F = 35 mm is provided on one of the right and left wall surfaces 12 of 19
When a gap G of 40 mm is opened between the wall surface 12 and the wall surface 12, the side girder of the wall surface 13 facing the handrail 15 is vertically divided into an upper girder member 20 and a lower girder member 21. The step plate 16 and the riser plate 17 are provided in the groove 22 formed between the members 21.
And the thickness H of the upper girder material 20 is changed to the face material 2
8 and the same dimension C = 12 mm, the effective width E of the staircase is A-B-F-G-H = 910-64-35-40-12.
= 759 (mm), and the legal effective width is secured.

A packing 29 may be inserted in the insertion groove 22.

If a difference in thickness between the skirting board 25 and the upper girder member 20 causes a step difference from the wall surface between the skirting board 25 and the upper girder member 20 of the floor 24 on the upper and lower floors following the stairs, the width may be increased. Footlight (decorative board) 26 between the wood 25 and the upper girder material 20
It's good to go out with.

In the illustrated embodiment, only one side girder of the stair 19 is divided into the upper girder member 20 and the lower girder member 21, but both the left and right side girders are the upper girder member 20 and the lower girder. The material 21 may be divided into two.

[0013]

According to the present invention, the wall panel 11 having the thickness of B + 2C = 64 + 12 × 2 = 88 (mm) including the surface materials 28 on the left and right of the stairs is 910 mm in the dimension A between the left and right cores.
In the stairs of a general prefabricated house constructed as, the effective width E910-88 is 822 (mm), and the legal effective width is sufficiently secured.

For this reason, a fingertip is inserted between the wall surface 12 and a gap G of 40 mm with a margin, and a diameter F = 35 m.
Even if the thick pipe handrail 15 of m is attached, the legal effective width is secured, and the stairs effective for preventing the fall at the stairs, which is a cause of the domestic accident, will be constructed.

In the present invention, since the legal effective width is secured by simply dividing the side girder into two parts without changing the detail of the wall panel 11, it is safe and usable in consideration of the aging society. The present invention is extremely advantageous in constructing stairs with a handrail.

[Brief description of drawings]

FIG. 1 is a sectional front view of an indoor handrail staircase according to the present invention.

FIG. 2 is a sectional side view of an indoor handrail staircase according to the present invention.

FIG. 3 is a sectional front view of a conventional staircase with an indoor handrail.

[Explanation of symbols]

 11 wall panel 12 wall surface 13 wall surface 14 arm 15 handrail 16 step board 17 riser board 18 side girder 19 stairs 20 upper girder material 21 lower girder material 22 insertion groove 24 floor 25 skirting board 26 footlight 27 wall panel body 28 surface material 29 Packing

Claims (3)

[Claims] 1. A wall surface 1 of one wall panel 11 that surrounds the left and right sides.
2 has a handrail 15 supported by an arm 14 protruding from 2, and a side girder attached to a wall panel facing the handrail 15 has an upper girder member 20 and a lower girder member 21 with a step plate 16 and a riser plate 17 as boundaries. It is divided into two parts up and down, and a step plate 16 and a riser plate 1
Indoor handrail stairs, characterized in that 7 is inserted into an insertion groove 22 between an upper girder member 20 and a lower girder member 21. 2. The wall surface 1 of one wall panel 11 that surrounds the left and right
2 has a handrail 15 supported by an arm 14 protruding from 2, and a side girder attached to a wall panel facing the handrail 15 has an upper girder member 20 and a lower girder member 21 with a step plate 16 and a riser plate 17 as boundaries. It is divided into two parts up and down, and a step plate 16 and a riser plate 1
7 is inserted in the insertion groove 22 between the upper girder member 20 and the lower girder member 21, and the dimension A between the cores of the left and right wall panels 11 is 91.
0 mm, the thickness B of each wall panel body 27 is 64 mm, the face material 28 having a thickness C of 12 mm is attached to the surface of each wall panel body 27, and the handrail 15 has a diameter F = 30 to 35 mm. Pipe handrail of the wall 12
It is attached with a gap G of 30 to 40 mm between them, the thickness H of the upper girder member 20 is substantially the same as the thickness C of the face member 28, and the effective width E of the stairs is 750 mm. Indoor stairs with handrails. 3. The wall surface 1 of one wall panel 11 that surrounds the left and right
2 has a handrail 15 supported by an arm 14 protruding from 2, and a side girder attached to a wall panel facing the handrail 15 has an upper girder member 20 and a lower girder member 21 with a step plate 16 and a riser plate 17 as boundaries. It is divided into two parts up and down, and a step plate 16 and a riser plate 1
7 is inserted in the insertion groove 22 between the upper girder material 20 and the lower girder material 21, and a foot is provided between the skirting board 25 of the floor 24 on the upper and lower floors continuing from the upper girder material 20 and the upper girder material 20. Light (decorative board)
Indoor stairs with handrails, characterized by being closed off at 26.