JP2879293B2 - Staircase foundation in a house - 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 base structure in a house suitable for use on stairs, especially stairs in a house.

[0002]

2. Description of the Related Art Conventionally, as a material for forming stairs in a house, a woody wood material, a plywood coated with a decorative coating, and the like have been used.

[0003]

However, due to their characteristics, these materials are liable to undergo temporal deformation due to changes in wet and dry conditions, and as a result, a gap is formed between members, so that a problem such as so-called stairs noise is caused. there were. Further, the tread portion and the riser portion are formed as separate members, which requires skill in processing and connection, and time is required for the assembling work, so that it is difficult to adapt to factory production. Further, the cutting of timber has been suppressed from the viewpoint of protection of the global environment, and the prices of timber and the like have recently tended to increase, and the costs have tended to increase accordingly.

[0004] Therefore, an object of the present invention is to provide a staircase structure that is free from temporal deformation due to the environment, has excellent durability and uniformity in quality, does not require special skill, is suitable for factory production, and is cost-effective. Another object of the present invention is to provide a superior staircase foundation in a house.

[0005]

In order to achieve the above object, according to the present invention, a riser plate formed by bending one end of a metal plate downward is used as a riser plate, and the other end is bent upward. the protruding piece formed by tracks and the engaging piece, Ri Do as step board portion to form a flat plate portion between the riser plate portion and the engaging piece, further pre
A bent part having a predetermined width is formed on the upper part of the writing face plate part.
A step member for stairs in which a step nose is integrally formed by a portion , and this step member is erected between required number of side girders, and another step member is disposed in the next step with respect to an engagement piece of one step member. The riser portion of the step member is superposed from the side of the tread portion, and these are assembled together by screwing or an adhesive to form a base for the staircase.

[0006]

The staircase base in a house according to the present invention has a lower end portion of a riser portion of a step member for a base arranged in the next step between two side girders attached to a wall or the like on which the stairs are to be installed. It is assembled and formed by being continuously erected so as to overlap with the engagement piece of the lower step member arranged at the lower stage. And the said side girder installation part and the superposition | polymerization part are integrated by screwing or an adhesive. After the stair base is formed in this way, a surface finishing material such as a decorative plate material or a carpet is stretched on the upper surface to complete the stairs.

Since the base step member of the present invention is formed of a metal plate, it does not deform with time due to the environment, and has excellent durability and uniformity of quality. In addition, since it is assembled by screws or the like, it is easy to assemble without special skill for processing and connection.

[0008]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an exploded perspective view of a residential staircase base structure according to the present invention. FIG. 1 is a perspective view of an embodiment of a step member for stair base, and FIG. 2 is a partially omitted perspective view of a stair base using a step member.

The base step member 1 of this embodiment is formed integrally by bending a metal plate such as an iron plate or a zinc iron plate at two places. The step member 1 includes a tread portion 2 formed by a flat plate portion.
A riser plate portion 3 formed by an upright plate portion bent substantially perpendicularly downward from the tread plate portion 2, and an engagement piece 4 formed by a bent portion bent upward substantially perpendicularly to the tread plate portion 2. have.

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

As shown in FIG. 1, the riser plate portion 3 is formed of another piece formed when a substantially central portion of a metal plate cut into a rectangular shape is bent at a substantially right angle. Have a height. At the lower end of the riser plate 3, as shown in FIG.
A plurality of screw through holes 5 are provided. Screw through hole 5
Is for joining to the engaging piece 4 of another base step member 1 using a tapping screw 17 or the like.

The engaging piece 4 is provided for engaging with the next step member 1 for the base to form a stair base. 3 is a short bent portion formed by bending at a substantially right angle in a direction opposite to the bending direction.
Then, as shown in FIG. 2, the engaging piece 4 and the lower end of the riser plate portion 3 of the base step member 1 arranged in the next stage are sequentially superimposed and attached, thereby producing a stair base. Is done. The engaging piece 4 is provided on the step member 1 for the base arranged in the next step.
Is located on the back side of the riser plate portion 3 of FIG. Since both are superimposed in such a positional relationship, a step or the like is not formed on the surface of the riser plate portion, and therefore, it is safe. further,
The engagement piece 4 is provided with a screw through hole 5 of the riser plate 3 when the riser 3 is overlapped with the riser 3 of the base step member arranged in the next stage.
Are provided at positions corresponding to.

Further, the step member for base 1 is formed by bending a metal plate.
Nose part 12 having a predetermined width formed by
You. As shown in FIG. 1, the nostril portion 12 is made of a metal plate twice.
It is formed by bending at a substantially right angle. This groundwork
The step member 1 has a step portion 12 formed integrally.
The nose part is formed at the same time only by attaching the base step member 1
A member that is formed and forms a nostril near the upper part of the riser portion 13.
It is not necessary to separately attach
Become.

Next, a staircase base structure using a step member will be described.
This will be described with reference to FIG. First, two side girders 6 that support both ends of a step member for groundwork are arranged on a wall surface in a house where a staircase is to be installed. Then, as shown in FIG. 2, the lowermost step member for foundation is installed between the side girders 6, and the ends of the tread plate portion 2 and the riser plate portion 3 are fixed to the side girders 6 and the receiving members 9 with wood screws 16. I do. Then, in a state where the lower end of the riser plate portion 3 of the base step member arranged in the next stage is overlapped with the engaging piece 4 of the base step member arranged earlier, the end of the base step member is set to the side. It is fixed to the spar 6 with a wood screw 16, and the overlapping portion of the engagement piece 4 and the riser plate 3 is fixed with a tapping screw 17 or the like.

The above steps are repeated to sequentially assemble the step members for the base to form the stair base of the required length. And
On top of that, a surface finishing material such as a decorative board or carpet is stretched to finish the stairs.

The procedure or method for fixing the base step member is not limited to the above, and each base step member may be sequentially arranged at a predetermined position and then fixed collectively. It is not necessary. In addition, the joining of the overlapping portion between the engaging piece 4 of the base step member and the riser plate portion 3 and the fixing of the base step member to the side girders 6 may be performed with an adhesive or the like. The through holes 5 and the like of the step member are unnecessary.

Furthermore, since the base step member is a metal plate, it is conceivable that the base member bends due to so-called pecking, particularly at the intermediate surface. Therefore, in this case, in order to prevent bending or the like, the receiving member 9 may be provided at an appropriate position between the side beams 6. Further, a reinforcing steel material may be previously attached to the back surface of the tread portion 2 by welding or the like. However, these are not always necessary by making the metal plate a certain thickness.

Further, the tread portion 2 of the base step member is not limited to a rectangular shape as shown in FIG.
In the middle part of the stairs, landing stairs, etc., a triangular shape,
A fan-shaped base step member can be used.

In this embodiment, the kick plate 3 is bent at a substantially right angle with respect to the tread 2.
In order to secure the depth of the tread portion 2, the riser portion 3 is required.
May be bent at an acute angle with respect to the tread portion 2 as appropriate.

[0020]

Since the base of the staircase in the house of the present invention is formed of a metal plate, there is no deformation with time due to the environment, and the durability and the uniformity of the quality are excellent. In addition, the step member for the base constituting the base of the stairs is easy to assemble without special skill for processing and connection since the tread portion, the riser plate portion and the engagement piece are integrally formed. is there. In particular, although the base of the stairs installed in the house is made of a metal plate, the connection is made with screws or adhesive, so the work is extremely simple, and since welding is not required at the time of assembly, The wood-based material does not cause an unsafe operation such as a fear of igniting general surrounding interior components. Furthermore, if it is installed in a factory-produced house, the cost will be further improved. In addition, the riser
It is necessary to attach a member that constitutes the nose near the upper part separately
Therefore, the assembling work becomes easier.

[Brief description of the drawings]

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

FIG. 2 is a partially omitted perspective view of a staircase base structure using a base step member.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Base member 2 Step board part 3 Kick-in board part 4 Engagement piece 5 Through hole 6 Side girder 7 Upper floor 9 Receiving material 12 Step nose part 15 Through hole 16 Wood screw 17 Tapping screw

Claims (1)

(57) [Claims] An upright plate formed by bending one end of the metal plate downward, and a protruding piece formed by bending the other end of the metal plate upward as an engagement piece; Ri Do as step board portion to form a flat plate portion between the parts and the engaging piece, further pre
A bent part having a predetermined width is formed on the upper part of the writing face plate part.
A step member for stairs in which a step nose is integrally formed by a portion , and this step member is erected between required number of side girders, and another step member is disposed in the next step with respect to an engagement piece of one step member. A staircase base structure in a house in which a riser portion of a step member is superposed from the side of a tread portion, and these are assembled together with screws or an adhesive to form a staircase base.