JP2001329669A - Stair used for temporary construction in common and installing method therefor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an inexpensive stair used for a temporary construction in common and an installing method therefor, easily leveled dispensing with special curing, and depressing a stamping sound. SOLUTION: The stair is composed of an interlinking material 4, a substrate material 2a, a facing material 2b, and a riser 6. Horizontal surfaces 1a, 1a and vertical surfaces 1c, 1c are formed in tiers notched in a saw-toothed shape in advance in the upper part of a pair of parallel side plates 1, 1 disposed in a inclined manner. The bridging materials 4 are fixed to the portions formed by notching the portions where the horizontal surfaces 1a, 1a and the vertical surfaces 1c, 1c cross one another. The substrate materials 2a are securely fixed to the top surfaces of the bridging materials 4 and the horizontal surfaces 1a, 1a in such a manner as to be able to be used as the tread parts of the temporary stair. In the case of the installation of the stair, the facing materials 2b are laid and fixed on the top surfaces of the substrate materials 2a, and the risers 6 are fixed to the front surfaces of the interlinking materials 4 and the vertical surfaces 1c, 1c.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a temporary staircase for a building, especially a house, and a method for installing the same.

[0002]

2. Description of the Related Art Generally, construction of stairs in a house is usually performed immediately after a roof is constructed for convenience of a process. At this stage, since the outer wall and the sash have not been constructed yet, rainwater often splashes due to strong wind and rain. Further, since it is often used for material transport work as a communication work passage to the upper floor, damage is generally prevented by using a strict curing material immediately after construction.

As shown in FIG. 8, a staircase used in a house or the like is formed on a pair of horizontal planes 1a, which are formed by cutting a pair of parallel side plates 1 and 1 which are inclined and sawn in advance. Since the treads 2 are mounted in the form of tiers and fixed with nails, wood screws or the like, the so-called "tier type" is called. This structure has been widely used in recent years because of its simple construction.

[0004] The construction of this "layer type" stairs is performed in the following procedure. (A) A pair of sawtooth side plates 1 and 1 are temporarily fixed to left and right wall surfaces (not shown). (A) The tread 2 or a suitable arranging plate is placed between the horizontal surfaces 1a formed on the pair of side plates 1 and 1 and temporarily set. (C) A level is placed on the tread plate 2 so that the serrated side plate is horizontal. (D) When the level is confirmed, the side plates 1 and 1 are permanently fixed to the left and right wall surfaces. (E) The tread plate 2 and the riser plate 6 are fixedly installed with nails or the like. This completes the construction of the stairs body. (F) Subsequently, to prevent the tread 2 from being damaged or contaminated, the tread 2 is covered with a curing material (protective material) 7 such as a cardboard, a plywood, a commercially available curing cover, and cured. (G) After the indoor construction work is completed, the curing material 7
To remove.

[0005] During the curing period, (a) the stairs are used as a work passage between the first and second floors. Therefore, if a worker drops heavy materials, the tread 2 may be particularly damaged. There is a need to. (B) At the time of mounting the tread 2, it is necessary to take it out of the package once and to construct it in a naked state (it is not possible to construct it while it is cured). (C) As the curing cover is usually used by stacking a board or the like, the curing cover is not perfect. (D) At the stage of stairs construction, although the roof is attached, the walls and windows are often not constructed, so there are many troubles due to rainfall.

[0006]

However, there are the following problems with the construction of the "chicken type" stairs. (A) Leveling work is troublesome. Since the tread 2 or a suitable board must be temporarily installed between the pair of side plates 1, 1 in a temporarily fixed and unstable state, if the leveling is insufficient, the level of the left and right side plates 1, 1 will be incorrect, Gaps and squeaks may be generated and become complaints. (B) Strict curing is required. Although the tread 2 is integrated with the decorative material, the stairs often also serve as a work passage to the second floor, and there is a great risk of damage due to walking on foot, material falling, or collision. Curing covers for stairs are commercially available, but expensive. In many cases, this alone is not sufficient, and in many cases, additional plywood or the like is attached. Cosmetic material (adhesive board etc.) with adhesive tape when curing material 7 is attached
There is a problem of peeling. The adhesive tape for curing does not have such a thing, but the adhesive force is weak, so it is easy to peel off, and when peeling occurs, not only is it scratched, but also the curing material 7 falls off, slips and the worker falls down. It is possible.

In addition, rainwater invades between the curing material 7 and the makeup material to cause mold, swelling, discoloration and the like, and damage of stones and sand particles between the curing material 7 and the makeup material. There is a risk of occurrence. In addition, when the curing material 7 is partial, there is a possibility that the uncoated cosmetic material portion may be tanned and discolored (especially in rice pine). In addition, if you want to completely prevent the occurrence of scratches, it is necessary to separately create work stairs and lifts, but there are times when there is not enough room on the premises, and these temporary construction, maintenance, removal costs etc. are also required Becomes

(C) The squealing tends to occur. If the strength of the tread 2 is insufficient, or if the joining of the tread 2 and the riser 6 is insufficient, the tread 2 is bent at the time of ascending and descending, and rubbing occurs between the tread 2 and the riser 6.

It is an object of the present invention to provide an inexpensive temporary staircase which solves the above-mentioned disadvantages of the prior art, can be easily leveled out, does not require special curing, and does not cause treading. It is in.

[0010]

In order to achieve the above object, the temporary / staircase according to the first aspect of the present invention is provided with a pair of parallel side plates (1, 1) which are arranged in an inclined manner, and are provided with a sawtooth shape. A horizontal plane (1a, 1
a) and a vertical plane (1c, 1c) are further cut away at the intersection thereof, a cross-linking material (4) fixed to the cut-out portion, and an upper surface and a horizontal plane (1a, 1) of the cross-linking material (4)
a) a base material (2a) firmly fixed so as to be usable as a tread portion of a temporary staircase, a decorative material (2b) which is superimposed and fixed on the upper surface of the base material (2a) when the stairs are installed, and And a riser plate (6) fixed to a vertical surface (1c, 1c) formed in a step shape by cutting the front surface of the cross-linking material (4) when the stairs are installed, and being cut out in the saw-tooth shape. .

Further, according to the invention of claim 2, the upper end of the riser (6) has a decorative material (2) located above the riser (6).
The lower end of the riser (6) is fitted into the groove (2c) formed on the lower surface of the b), and the lower end of the riser (6) is formed on the upper surface of the decorative material (2b) located below the riser (6). (2d)
It is characterized in that it is fitted into and fixed to.

Further, in the method for installing a temporary staircase according to a third aspect of the present invention, when the temporary staircase is installed, a notch is formed beforehand in a saw-toothed manner on a pair of inclined side plates (1, 1) arranged in an inclined manner. A portion where the horizontal plane (1a, 1a) and the vertical plane (1c, 1c) formed in the shape intersect is further notched, and after fixing the cross-linking material (4) to the notched portion,
The base material (2a) is placed on the upper surface and the horizontal surface (1) of the cross-linking material (4).
a, 1a) so that it can be used as a tread portion of a temporary staircase, and when the stairs are installed, the decorative material (2b) is covered with the base material (2).
a) A vertical surface (1c, 1c) formed by cutting the riser plate (6) into the front surface of the cross-linking material (4) and the sawtooth shape while cutting and fixing the riser plate (6).
It is characterized by being fixed to.

The symbols in parentheses described in the means for solving the above-mentioned problems correspond to the symbols described in the drawings and the embodiments of the invention described later.

According to the first and third aspects of the present invention, the scratches and dirt on the base material are not exposed on the surface because the decorative material is layered and covered later, and the appearance of the finish of the stairs is improved. It will not be compromised. In addition, since the scratches and dirt on the cross-linking material are later covered with the riser, they are not exposed on the surface and the appearance of the finished stairs is not impaired. In the construction, first, a cross-linking material with sufficient strength is applied to the notch where the horizontal plane and the vertical plane intersect, so that it can be used as a temporary staircase, and firmly fixed with nails etc.,
By mounting a level on the upper surface of the cross-linking material and performing leveling, the side plates can be permanently fixed to the left and right wall surfaces. Therefore, the work can be performed without paying special attention to scratches and dirt, and leveling out becomes extremely easy as compared with the conventional example.

In particular, since the cross-linking material is placed in the notch where the horizontal plane intersects with the vertical plane, the positioning of the cross-linking material on the side plate and its holding become extremely easy, and leveling out becomes extremely easy. In addition, since the degree of fixation is increased as compared with the case of simply fixing with a nail or the like, a base material or a decorative material having low strength can be used. Therefore, curing is not required,
Various problems associated with curing are eliminated, and there is no need for any cost burden, and material and construction costs are reduced accordingly. Of course, sufficient attention is paid to bending at the time of ascending and descending due to insufficient strength, and occurrence of stomping is prevented. In addition, since the base material and the decorative material are placed and fixed on the U-shaped step portion composed of the cross-linking material and the horizontal surface firmly fixed to the side plate, the material does not bend and the generation of treading is prevented. It can be further prevented.

According to the second aspect of the present invention, the riser plate is fixed by being fitted into the grooves formed in the decorative material located above and below the riser plate, thereby stabilizing the strength.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a temporary staircase according to the present invention will be described with reference to the drawings. FIG. 1 is a perspective view showing an embodiment of a temporary / staircase of the present invention, and FIG.
FIG. 2 is a perspective view showing only a side plate of FIG. 1. Also, FIG.
It is sectional drawing which shows the state at the time of temporary stairs installation, and FIG. 4 is sectional drawing which shows the state at the time of stairs installation.

As shown in FIG. 2, the upper portions of the pair of parallel side plates 1 and 1 are cut in advance in a sawtooth shape to form a stepped shape. 1a and the vertical surfaces 1c, 1c are formed alternately. In the state where the stairs are completed, a base material 2a and a decorative material 2b functioning as a tread portion, which will be described later, are placed on the pair of horizontal surfaces 1a, 1a via a cross-linking material 4 in the form of a chick step. It is fixed with nails N. Furthermore, a kick plate 6 is applied to each pair of vertical surfaces 1c, 1c, and is fixed with nails or the like.

At the time of construction, corners where the horizontal planes 1a, 1a intersect with the vertical planes 1c, 1c are cut out, and the side plates 1, 1 are temporarily fixed to the left and right wall surfaces, as shown in FIG. The cross-linking material 4 is firmly fixed to the notched intersections 1b, 1b, 1d, 1d with nails or the like. On the upper surface of the cross-linking material 4 and on the upper surface of the U-shaped step portion composed of the horizontal surfaces 1a, 1a, a base material 2a having sufficient strength is firmly fixed with a nail N or the like so that it can be used as a tread portion of a temporary staircase. Is done. Note that the upper surface of the cross-linking material 4 is made flush with the horizontal surfaces 1a, 1a.

At the stage where the cross-linking material 4 is attached and fixed with nails or the like N, a level is placed on the upper surface of the cross-linking material 4, and if necessary, the nail is re-punched and leveling is performed. In this manner, the permanent fixing of the side plates 1 and 1 is completed, and the side plates 1 and 1 can be used as temporary stairs, that is, as a work elevating passage.

Next, when installing as an original staircase, as shown in FIG. 4, the decorative material 2b is placed so as to be superimposed on the upper surface of the base material 2a, and is fixed with nails or the like. The riser plate 6 is applied to the front surface and the vertical surfaces 1c, 1c, and is fixed with nails or the like to complete a staircase.
At this time, the upper end of the riser 6 is fitted into a groove 2c formed on the lower surface of the decorative material 2b located above the riser 6, and the lower end of the riser 6 is located below the riser 6. It is firmly fixed by being fitted into a groove 2d formed on the upper surface of the decorative material 2b.

According to this, the scratches and dirt on the cross-linking material 4 are not exposed on the surface because they are later covered by the riser 6. Further, even if the base material 2a is scratched or stained, it is also covered with the decorative material 2b later, so that the finished appearance of the stairs is not impaired. When the temporary stairs are used, even if the base material 2a is slightly wet by rain, it does not have any problem if it is dried, and it is not necessary to pay special attention to scratches and dirt due to elevating and lowering necessary for work.

Accordingly, curing is not required, and various problems such as the use of expensive commercially available curing covers, the addition of plywood and the like, and the problem of peeling of the decorative material with the adhesive tape are eliminated, and the problem is solved. There is no need for any additional costs, and material and construction costs are reduced accordingly. Of course, if an LVL material or plywood having sufficient strength is used as the base material 2a, there is no bending at the time of ascending and descending due to insufficient strength, and it is possible to prevent stomping.

The cross-linking material 4 is formed by notches 1b, 1b, 1 where horizontal planes 1a, 1a intersect with vertical planes 1c, 1c.
Since it is applied to d and 1d, the positioning and holding of the cross-linking material 4 on the side plate 1 are extremely easy, and the degree of fixation is increased. In addition, at the stage where the cross-linking material 4 is attached and fixed with nails or the like, a level is placed on the upper surface of the cross-linking material 4 and leveling is performed. The main fixing to the wall surface of 1, 1 is possible, and leveling out becomes extremely easy as compared with the conventional example. Further, since the cross-linking material 4 serves as a support for the base material 2a and the decorative material 2b functioning as a tread portion as described above, the occurrence of treading can be further prevented.

[0025]

According to the first and third aspects of the present invention,
The scratches and stains on the base material are not exposed on the surface because the cosmetic material is later layered and covered, and the finish appearance of the stairs is not impaired. In addition, since the scratches and dirt on the cross-linking material are later covered with the riser, they are not exposed on the surface and the appearance of the finished stairs is not impaired. In the construction, first, a cross-linking material with sufficient strength is applied to the notch where the horizontal plane and the vertical plane intersect, so that it can be used as a temporary staircase, and firmly fixed with nails etc.,
By mounting a level on the upper surface of the cross-linking material and performing leveling, the side plates can be permanently fixed to the left and right wall surfaces. Therefore, the work can be performed without paying special attention to scratches and dirt, and leveling out becomes extremely easy as compared with the conventional example.

In particular, since the cross-linking material is placed in the notch where the horizontal plane intersects with the vertical plane, the positioning and holding of the cross-linking material on the side plate and the holding thereof are extremely easy, and leveling out is extremely easy. In addition, since the degree of fixation is increased as compared with the case of simply fixing with a nail or the like, a base material or a decorative material having low strength can be used. Therefore, curing is not required,
Various problems associated with curing are eliminated, and there is no need for any cost burden, and material and construction costs are reduced accordingly. Of course, sufficient attention is paid to bending at the time of ascending and descending due to insufficient strength, and occurrence of stomping is prevented. In addition, since the base material and the decorative material are placed and fixed on the U-shaped step portion composed of the cross-linking material and the horizontal surface firmly fixed to the side plate, they do not bend, and the occurrence of treading is prevented. It can be further prevented.

According to the second aspect of the present invention, the riser plate is fixed by being fitted into the grooves formed in the decorative material located above and below the riser plate, so that the riser plate is stabilized in strength.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment of a temporary / staircase of the present invention.

FIG. 2 is a perspective view showing only a side plate of FIG. 1;

FIG. 3 is a cross-sectional view showing a state when a temporary staircase is installed.

FIG. 4 is a cross-sectional view showing a state when the stairs are installed.

FIG. 5 is a sectional view showing a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Side plate 1a Horizontal surface 1b Notch 1c Vertical surface 1d Notch 2 Tread 2a Base material 2b Cosmetic material 2c Groove 2d Groove 4 Cross-linking material 6 Kick-in plate 7 Curing material N Nail, etc.

Claims (3)

[Claims] An upper portion of a pair of parallel side plates arranged in an inclined manner is further notched at a portion where a horizontal plane and a vertical plane formed by cutting in advance in a saw tooth shape intersect with each other,
A cross-linking material fixed to the notched portion, a base material firmly fixed to the upper surface of the cross-linking material and the horizontal surface so as to be usable as a step board of a temporary staircase, and superimposed on the upper surface of the base material when the stairs are installed. A decorative material fixed and fixed, and a riser plate fixed to a vertical surface formed in a step-like shape by cutting the cross-linking material at the front and the saw-tooth shape when the stairs are installed. Temporary staircase. 2. An upper end of the riser is fitted into a groove formed on a lower surface of the decorative material located above the riser, and a lower end of the riser is located below the riser. The temporary staircase according to claim 1, wherein the temporary staircase is fitted and fixed in a groove formed on an upper surface of the decorative material. 3. When a temporary staircase is installed, a portion where a horizontal plane formed in a stepped shape and a vertical plane intersect with each other by cutting in a sawtooth shape in advance is further cutout above a pair of parallel side plates arranged at an angle. After fixing the cross-linking material to the notched portion, the base material is firmly fixed to the upper surface of the cross-linking material and the horizontal plane so that it can be used as a tread portion of a temporary staircase. A method for installing a temporary / staircase, wherein the temporary staircase is fixed by being superimposed on an upper surface and fixed on a front surface of the cross-linking material and a vertical surface formed in a step shape by cutting the saw-like shape.