JP2001302147A - Structure of mounting rail to staircase - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide structure of mounting a rail to a staircase eliminating the problems of cracks in a step board and of construction by fixing a stay to a wooden staircase not only at a step board but also at a step board positioned upper than the former step board or a kick-up plate. SOLUTION: In the structure of mounting a rail to the staircase (a) wherein a stay 11 is erected on and fixed to the step board 1 of the stair case (a), and the rail 12 is fixed on the side of a face the stay 11, the middle part of the stay 11 and a step board 1a positioned upper than the step board 1 to which the stay 11 is fixed are connected to each other by a bracket 17.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a condition in which a rail is placed along a slope of a stair and a biased load is applied to a rail mounting portion, such as a chair-type stair climber that rises and falls along the rail. On the other hand, the present invention relates to a rail mounting structure on a staircase capable of supporting a rail with excellent strength.

[0002]

2. Description of the Related Art A chair-type stair climber is a device that enables a person who has difficulty climbing up and down stairs by himself to climb up and down the stairs while sitting on a chair. It has become to.

FIG. 7 shows a structure in which a chair-type stair climber is installed on an existing wooden stair. A column 2 is erected at a predetermined interval on a tread 1 of a stair A, and one side of the column 2 is The rail 3 is fixed so as to follow the slope of the stairs A, and the chair 4 is attached to the rail 3 so as to move up and down.

[0004] Such a mounting structure of the rails 3 using the columns 2 is mainly used because the strength of the wall material B in the staircase is not sufficient.

The chair type stair climber as described above is mounted so that the chair 4 moves up and down on the side opposite to the wall material B with respect to the rail 3. The weight of the chair 3, the chair 4 and the user acts as a cantilever falling moment. Therefore, the support 2
Sufficient strength is required for fixing to the tread plate 1 on the side on which the pulling force acts.

Conventionally, when the column 2 is fixed on the tread plate A of the stairs A using wood screws, a fixed base 5 provided at the lower end of the column 2 is overlaid on the tread plate 1, and the wood screws are screwed into the tread plate 1 from the fixed base 5. At this time, four wood screws are used to fix the wall member B on which the pulling force of the fixing base 5 acts, so that the pulling resistance is obtained.

[0007]

However, in general, the width of the tread plate 1 in the existing wooden stairs A is 150 to 2 mm.
Approximately 50 mm, and fixing the support 2 by screwing four wood screws in the widthwise direction here reduces the space between the wood screws, causing cracks in the tread plate 1 and construction problems. .

Accordingly, an object of the present invention is to disperse the fixing of the pillars to the wooden stairs not only to the tread plate but also to the upper tread plate or the riser so that the pulling force acts as a whole while reducing the number of wood screws screwed into the tread plate. An object of the present invention is to provide a rail mounting structure on a staircase which can secure four wood screws for fixing a wall side to be installed and which does not have a crack in a tread plate or a problem in construction.

[0009]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, a first aspect of the present invention is a staircase in which a column is fixed on a step board of a stair in an upright state, and a rail is fixed to one surface side of the column. In the rail mounting structure, a structure is adopted in which a middle part of the above-mentioned strut and a tread plate above the tread plate to which this strut is fixed are connected by a bracket.

According to a second aspect of the present invention, there is provided a rail mounting structure in which a support is fixed in an upright state on a step board of a stair and a rail is fixed to one surface side of the support. In this configuration, the riser that stands on the front of the tread plate with the fixed is connected by a bracket.

[0011] Here, the support column has a fixed base at the lower end and a position on both sides sandwiching the rail in a plane, and is fixed on a tread of a stair by a fastener, and the bracket is flat with respect to the tread or the riser. The positions on both sides of the rail are fixed with fasteners.

[0012]

Embodiments of the present invention will be described below with reference to the drawings.

In the first embodiment shown in FIGS. 1 to 4, columns 11 are erected at predetermined intervals on the tread plate 1 of the step A, and a rail 12 is provided on one side of the column 11 with an inclination of the step A. And the chair is mounted on the rail 12 so as to be able to move up and down.

The support 11 is made of a rectangular steel pipe having a vertically long shape. A rail mounting plate 13 is fixed to the upper part of the surface of the stairs A opposite to the wall plate B. A rectangular fixed base 14 is provided at the lower end of the support 11. Is provided.

With respect to the fixed base 14, the support 11 is
As shown in FIG. 3, the rail 12 fixed to the rail mounting plate 13 is fixed upright at a position offset to the wall plate B side of the stairs A.
Is arranged in the middle of the fixed base 14 in plan view, and the pulling force acts on the wall plate B side of the fixed base 14 as a cantilever of the chair 12 with the weight of the rail 12 and the user. Will do.

At four corners of the fixed base 14, insertion holes 16 for wood screws 15 for fixing the support 11 on the treadle 1 of the stairs A are provided. Accordingly, two insertion holes 16 for the wood screw 15 with respect to the fixed base 14 are arranged on the wall plate B side of the stairs A and two on the opposite side to the wall plate B with the rail 12 interposed therebetween in plan view. By screwing the wood screw 15 inserted into the step board 1 into the tread board 1, the column 11 can be fixed upright on the tread board 1.

A bracket 17 whose end is bolted to an intermediate portion of the column 11 is fixed to a step plate 1a one step higher than the step plate 1 to which the column 11 is fixed. The fixed portion of the bracket 17 to the tread plate 1a extends on both sides of the rail 12 when viewed in plan, and two wood screws 15 are provided on the wall plate B side of the stairs A and two wood screws 15 on the opposite side of the wall plate B. Insertion hole 1
The bracket 17 is fixed on the tread plate 1a by screwing the wood screw 15 inserted into each insertion hole 18 into the tread plate 1a.

As described above, when the column 11 is fixed to the stairs A, the wall plate B on which the pulling force acts is fixed by the two wood screws 15 on the wall plate B side of the fixed base 14 and the wall of the bracket 17. The two wood screws 15 on the plate B side are fixed by a total of four wood screws 15, so that the same total number as in the related art can be secured, a pull-out resistance can be obtained, and the width direction of the tread plate 1 can be obtained. The number of screwing of the wood screws with respect to the number becomes two, so that the occurrence of cracks in the tread plate 1 can be prevented.

The second embodiment shown in FIGS. 5 and 6 shows the structure of the support 11 itself and the support 1 on the tread plate 1 of the stairs A.
The fixing structure 1 is the same as that of the first embodiment described above, except that a bracket 21 having a tip bolted to an intermediate portion of the column 11 is provided on a riser 1b standing on the front surface of the tread plate 1 to which the column 11 is fixed. It is fixed with a wood screw 15.

The bracket 21 is fixed to the riser 1b by mounting a mounting plate 22 fixed at right angles to the end of the bracket 21 on the riser 1b, and fixing both ends of the bracket 21 to the riser 1b by screwing wood screws 15. Also in the second embodiment, the number of screws of the wood screw 15 in the width direction of the tread plate 1 for fixing the support 11 is two, and the bracket 2 having the tip fixed to the middle of the support 11 is provided.
By fixing 1 to the riser 1b, it is possible to reinforce the pull-out resistance against the cantilever moment with respect to the support column 11.

The rail mounting structure of the present invention is configured as described above, and the support 11 is fixed on the tread plate 1 of the wooden stairs A with wood screws at the four corners of the fixed base 14. The number of wood screws to be screwed in the width direction becomes two, so that cracks can be prevented from being generated in the tread plate 1, and the middle of the support column 11 is connected to the upper tread plate 1.
a with a bracket 17 and a bracket 21 with a riser 1b standing upright on the front surface of the tread plate 1,
It is possible to reinforce the pull-out resistance against the cantilever falling moment applied to the column 11.

[0022]

As described above, according to the present invention, in a rail mounting structure on a stair in which a support is fixed in an upright state on a step plate of a stair and a rail is fixed on one side of the support, And, since the tread plate above the tread plate to which this support is fixed, or the riser standing on the front of the tread is fixed with a bracket, the bracket should be used to reinforce the pull-out resistance against the cantilever overturning moment applied to the support. This makes it possible to fix the strut with wooden screws on the tread plate, making it possible to reduce the number of screwed wood screws in the width direction of the tread plate. It can be prevented from occurring.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a rail mounting structure according to a first embodiment.

FIG. 2 is a vertical sectional front view of the above.

FIG. 3 is a cross-sectional plan view of the above.

FIG. 4 is a longitudinal sectional side view along an arrow AA in FIG. 2;

FIG. 5 is a longitudinal sectional front view showing a rail mounting structure according to a second embodiment;

FIG. 6 is a cross-sectional plan view of the above.

FIG. 7 is a perspective view showing the structure of a chair type stair climber.

[Explanation of symbols]

 A stairs 1 tread 1b riser 11 support 11 12 rail 13 rail mounting plate 14 fixed base 15 wood screw 16 insertion hole 17 bracket 21 bracket

Claims (3)

[Claims] In a rail mounting structure in which a support is fixed on a step board of a stair in an upright state, and a rail is fixed to one surface side of the support, a step above the support and a step above the support to which the support is fixed. Rail mounting structure to the stairs, characterized by combining the treads with brackets. 2. A rail mounting structure in which a support is fixed in an upright state on a step board of a stair, and a rail is fixed to one surface side of the support, wherein a rail is fixed to a middle of the support and a front face of the step to which the support is fixed. A rail mounting structure on stairs, characterized by connecting the rising upper part with a bracket. 3. The strut has a fixed base at a lower end thereof fixed on both sides of the rail in a plane with a fastener on a step board of a stair, and the bracket is planarly mounted on a step board or a riser. The rail mounting structure according to claim 1 or 2, wherein positions on both sides of the rail are fixed with fasteners.