JPH0754451A - Step member for housing stair and construction of stair for housing - Google Patents

Abstract

PURPOSE:To facilitate execution of a work for a stair ground by a method wherein one end part of a metallic sheet is bent downward, the other end is bent upward to produce a step member, and the engaging piece of one step member and the riser part of other stem member are overlapped with each other. CONSTITUTION:Two side beams 6 to support the two end parts of a stem member 1 are arranged on a wall surface and a lowermost step member 1 is caused to span between the side beams 6. The end parts of a tread part 2 and riser part 3 are fixed to the side beams 6 and support materials 9 by means of a wood screw 16. The lower end part of the riser part 3 of the step member 1 is overlapped with an engaging piece 4 of the step member 1 previously arranged and fixed by means of the wood screw 16. An overlapped part between the engaging piece 4 and the riser part 3 is fixed by means of a tapping screw 17. This constitution facilitates an assembly work and reduces a cost.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a step member for a residential staircase which is suitable for use in a staircase, especially a staircase in a house, and a staircase structure for a house using the staircase member.

[0002]

2. Description of the Related Art Conventionally, as a material for forming stairs,
Woody lumber and decoratively coated plywood are used.

[0003]

However, these materials tend to be deformed over time due to changes in dryness and humidity due to their characteristics, and as a result, gaps are formed between members and so-called stairs and other problems may occur. there were. Further, since the tread plate portion and the riser plate portion are formed as separate members, skilled technology is required for processing and connection, and it takes time for assembly work, which makes it difficult to fit into factory production. Further, from the viewpoint of protection of the global environment, logging of timber has been suppressed, the price of timber and the like has recently been increasing, and the cost is also increasing accordingly.

Therefore, an object of the present invention is that it is not deformed with time due to the environment, is excellent in durability and uniformity of quality, can form a staircase structure without requiring special skill, is suitable for factory production, and is cost effective. Another object of the present invention is to provide an excellent staircase member for a staircase and a staircase structure for a house using the staircase member.

[0005]

What achieves the above-mentioned object is a step member formed by bending one end portion of a metal plate downward and bending the other end portion upward. A riser plate portion is formed by the bent upright plate portion, and an engaging piece for overlapping with the lower end portion of the riser plate portion of another step member is formed by the protruding piece bent upward, and the riser plate portion and the above It is a step member for a residential staircase in which a tread plate portion is formed by a flat plate portion between the engaging piece and the engaging piece.

Further, the upper portion of the elevation plate portion may be formed with a bent portion having a predetermined width, and the nose portion may be integrally formed by the bent portion.

Further, the object of the present invention is to achieve the object by using a required number of step members for stairs of one of the above houses, and by using the engaging piece of one step member and another step arranged in the next step. It is a staircase structure for a house in which a staircase base is formed by sequentially assembling the member and the riser plate so as to overlap each other.

[0008]

The step member for a residential staircase according to the present invention forms a staircase foundation by being installed between the two side girders attached to the wall surface or the like on which the staircase is to be installed by a required number of bridges. The step member has a flat plate portion that serves as a step plate portion, an elevation plate portion that serves as a riser plate portion, and an engagement piece that overlaps with the elevation plate portions of other step members, and the step member arranged in the next stage. The lower end portion of the riser plate portion is sequentially assembled so as to overlap with the engaging piece of the step member arranged in the lower step to form a stair base. Then, a surface finishing material such as a decorative board material or a carpet is stretched thereon to form steps.

Since the step member for a house staircase of the present invention is formed of a metal plate, it does not deform with time due to the environment and is excellent in durability and quality uniformity. Further, since they are integrally formed, they can be easily assembled without requiring any special skill for processing and connection.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A staircase member for a residential staircase according to the present invention will be described with reference to an embodiment shown in the drawings. 1 is a perspective view of an embodiment of a staircase member for a house staircase, and FIG. 2 is a partially omitted perspective view of a staircase structure for a house using the staircase member shown in FIG.

The step member 1 for a house staircase of this embodiment is an iron plate,
A metal plate such as a zinc iron plate is bent at two places to be integrally formed. The step member 1 includes a step plate portion 2 formed by a flat plate portion, a riser plate portion 3 formed by an elevation plate portion bent downward at a substantially right angle from the step plate portion 2, and an upper portion at a substantially right angle from the step plate portion 2. It has an engaging piece 4 formed by a bent portion that is bent.

As shown in FIG. 1, the tread portion 2 is composed of a piece formed by bending a substantially central portion of a rectangularly cut metal plate at a substantially right angle, and has a required width and depth. have. Through holes 5 are provided at both ends of the tread portion 2. The through hole 5 is for fixing the tread plate portion 2 to a side girder 6 described later by using a wood screw 16 or the like.

As shown in FIG. 1, the riser plate 3 is composed of another piece formed by bending a substantially central portion of a metal plate cut into a rectangle at a substantially right angle, and has a required height. Have As shown in FIG. 1, a plurality of screw through holes 5 are provided at the lower end of the riser plate 3. The through hole 5 is formed by using a tapping screw 17 or the like to engage the engaging piece 4 of another step member 1.
It is for joining with.

The engagement piece 4 is provided to engage with the next step member 1 to form a staircase, and the end side portion of the tread plate portion 2 is folded between the tread plate portion 2 and the riser plate portion 3. It is a short bent portion formed by bending at a right angle in a direction opposite to the bending direction. Then, as shown in FIG. 2, the engagement piece 4 and the lower end portion of the riser plate portion 3 of the step member 1 arranged in the next step are sequentially superposed and attached to each other, whereby a stair base is produced. . Engagement piece 4
Are located on the back side of the riser plate 3 of the step member 1 arranged in the next step and are superposed. Since both are superposed in such a positional relationship, a step or the like is not formed on the riser plate surface, which is safe. Further, when the engaging piece 4 is overlapped with the riser plate 3 of the step member arranged in the next stage, the through hole 15 is provided at a position corresponding to the screw through hole 5 of the riser plate 3.
have.

Next, a staircase structure for a house using the step member 1 will be described with reference to FIG.

First, two side girders 6 for supporting both ends of the step member 1 are arranged on the wall surface or the like on which the stairs are to be installed. Then, as shown in FIG. 2, the lowermost step member 1 is installed between the side girders 6 and the end portions of the tread plate portion 2 and the riser plate portion 3 are fixed to the side girders 6 and the receiving member 9 with wood screws 16. . Then, the lower end portion of the riser plate portion 3 of the step member 1 arranged in the next stage is overlapped with the engaging piece 4 of the step member 1 arranged earlier, and the wood screw 16
Then, the engaging portion 4 and the overlapping portion of the riser plate portion 3 are fixed with tapping screws 17 or the like.

The steps described above are repeated to assemble the step members one after another to form a step base having a required length. Then, after the stairs base is completed, the nosing member 8 as provided in the lowermost stage of FIG. 2 is attached, if necessary, from a design viewpoint or a functional viewpoint such as the size of the tread. Then, a surface finishing material such as a decorative board material or a carpet is stretched thereon to form stairs.

The procedure or method of fixing the step members is not limited to the above, and each step member may be sequentially arranged at a predetermined position and then fixed in a lump, and the construction procedure does not require a special method. . Further, the joining of the overlapping portion between the engaging piece 4 of the step member 1 and the riser plate portion 3 and the fixing to the side girder 6 of the step member 1 may be carried out by an adhesive or the like. The through hole 5 and the like are unnecessary.

Further, in order to prevent the step member 1 from bending or the like, a receiving member 9 may be installed at an appropriate position between the side girders 6.
Further, a reinforcing steel material may be attached to the back surface of the tread portion 2 by welding or the like. However, these are not necessarily required by making the metal plate a certain thickness.

Further, the tread portion 2 of the step member 1 is not limited to the one having a rectangular plane shape as shown in FIG. 1, and for example, a triangular shape or a fan shape may be provided in an intermediate portion of a staircase, a staircase with landing, etc. Can be used.

Next, a step member of another embodiment of the present invention will be described with reference to FIG.
Will be described. The difference between the step member 10 of this embodiment and the above-mentioned step member 1 is that the step member 10 has a step nose portion 12 formed by bending a metal plate and having a predetermined width. As shown in FIG. 3, the nosing portion 12 is made of a metal plate twice,
It is formed by bending at a substantially right angle. Since this step member 10 has the nose portion 12 formed integrally, the nose portion is formed at the same time only by assembling the step member 10,
Since it is not necessary to separately attach a member forming a nosing near the upper part of the riser plate portion 13, the assembling work becomes easier.

In each of the above-mentioned embodiments, the riser plates 3 and 13 are bent at substantially right angles to the tread parts 2 and 11, but the depth dimension of the tread parts 2 and 11 is ensured. In order to do so, it is needless to say that, in addition to forming the nose as shown in FIG. 3, the riser plates 3 and 13 may be bent so as to be inclined at an acute angle with respect to the step plates 2 and 11.

[0023]

EFFECTS OF THE INVENTION Since the step member for a house staircase of the present invention is formed of a metal plate, it does not deform with time due to the environment and is excellent in durability and quality uniformity. Further, since the tread plate portion, the riser plate portion and the engaging piece are integrally formed, the assembly is easy without requiring any special skill for processing and connection. Furthermore, if it is installed in a factory-produced house, the cost will be further improved.

[Brief description of drawings]

FIG. 1 is a perspective view of an embodiment of a step member for a house staircase according to the present invention.

FIG. 2 is a partially omitted perspective view of a staircase configuration using the step member shown in FIG.

FIG. 3 is a perspective view of another embodiment of the step member for a residential staircase according to the present invention.

[Explanation of symbols]

 1 step member for house stairs 2 step plate part 3 riser plate part 4 engagement piece 5 through hole 6 side girder 7 upper floor 8 step nose member 9 receiving member 15 through hole 16 wood screw 17 tapping screw

Claims (3)

[Claims] 1. A step member formed by bending one end portion of a metal plate downward and bending the other end portion upward, and forming a riser plate portion by a rising face plate portion bent downward. , An engaging piece for overlapping with the lower end of the riser plate portion of the other step member is formed by the protruding piece bent upward, and the tread plate is formed by the flat plate portion between the riser plate portion and the engagement piece. A step member for a residential staircase, which is characterized by forming a portion. 2. The step member for a residential staircase according to claim 1, wherein an upper portion of the upright plate portion forms a bent portion having a predetermined width, and the stepped nose portion is integrally formed by the bent portion. 3. A required number of step members for housing stairs according to claim 1 or 2, wherein the engaging piece of one step member and the riser plate portion of another step member arranged in the next step are overlapped. A stair structure for a house, characterized in that a stair base is formed by sequentially assembling the stairs.