JP2000213132A - Stair used for temporary construction in common - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a stain used for temporary construction in common at a low cost, easily level the surface horizontally, and dispense with special curing, which can be easily projected horizontally and does not cause any stamping sound. SOLUTION: This temporary construction used for stairs is constituted of substrate members 2a respectively mounted on horizontal surface 1a and 1a formed in tiers notched in the shape of a sawtooth in advance on the upper parts of a pair of parallel side panels 1 and 1 arranged in an inclined state and firmly fixed as tread sections of temporary stairs in a useable manner, facing members 2b overlapped on the upper surfaces of the substrate members 2a when the stairs are installed to fix and risers 6 repectively fixed to vertical surfaces 1c and 1c formed in tiers notched in the shape of a sawtooth when the stairs are installed in the same way.

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, particularly a house.

[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 has a plurality of pairs of horizontal steps formed by cutting in advance a pair of parallel side plates 1 and 1 which are arranged in an inclined manner in a sawtooth shape. Since the tread 2 is mounted on the lamina 1a in a tiered manner and fixed with nails, wood screws, or the like, it is called a so-called "layer type". 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 board is placed between the horizontal steps 1a formed on the pair of side plates 1 and 1 and is temporarily installed. (C) A level is placed on the tread plate 2 to level the saw-toothed side plate. (D) When the level is confirmed, the side plates 1, 1 are permanently fixed to the left and right wall surfaces. (E) The tread 2 and the riser 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) When the tread 2 is attached, it is necessary to take it out of the package once and construct it in a bare 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 an appropriate 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 is out of alignment. In some cases, a gap or a squeak sound is generated, which may be a complaint. (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. There is a problem of peeling of a decorative material (such as a tread) due to the adhesive tape when the curing material 7 is attached. The adhesive tape for curing is
Although this is not the case, the adhesive strength is weak, so it is easy to peel off.
May fall off and slip, causing the operator to fall.

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) a base material (2a) which is placed on each of the chick steps and is firmly fixed so that it can be used 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 set, and a vertical surface (1c,
1c) and a riser plate (6) fixed to each of them.

According to a second aspect of the present invention, a horizontal plane (11a, 11) formed in a step shape by cutting in advance in a saw-tooth shape is formed on a pair of parallel side plates (1, 1) which are arranged obliquely.
a) is further cut out at the intersection of the vertical plane and the cross-linking material (4) fixed to the cut-out portions (11b, 11b, 11c, 11c), the upper surface and the horizontal plane ( 11a, 11a) A temporary board (5) firmly fixed so as to be usable as a tread portion of a temporary stair, and a cosmetic material fixed in place of the temporary board (5) after removing the temporary board (5) when installing the stairs (12) and a riser (6) which is fixed to the front surface and the vertical surface of the cross-linking material (4) when the stairs are installed.

According to a third aspect of the present invention, a pair of parallel side plates (1, 1) arranged at an angle are fixed to the front surface of a vertical surface formed in a step shape by cutting in advance in a sawtooth shape. A cross-linking material (4), a temporary plate (5) firmly fixed to the upper surface of the cross-linking material (4) and the horizontal surface (11a, 11a) so as to be usable as a step portion of a temporary staircase, and a temporary plate (5 ) Is replaced by a temporary material (12) that is fixed in place of the temporary plate (5), and a riser plate (6) that is also fixed to the front of the bridge material (4) when the stairs are installed. It is assumed that.

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 aspect of the present invention, the scratches and dirt 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. Absent. Then, in the construction, first, only a base material such as a veneer board having sufficient strength is placed on a horizontal surface, and firmly fixed with nails or the like so that it can be used as a temporary staircase, and a level is attached to the base material. By mounting and 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 caused by nailing and the like, and leveling out becomes extremely easy as compared with the conventional example.

Further, as described above, the one in which only the base material is mounted on a horizontal plane can be used as a temporary staircase, and since the base material is later covered with a decorative material, it is possible to prevent rain intrusion and work. There is no need to pay special attention to scratches and dirt due to necessary lifting and lowering. 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 no stomping occurs.

According to the second aspect of the present invention, since the scratches and dirt on the cross-linking material are later covered with the riser, they are not exposed to the surface and the appearance of the finished stairs is not impaired. Then, in the construction, first, a cross-linking material having sufficient strength, such as scraps generated at the site, is applied to the notch where the horizontal plane intersects with the vertical plane so that it can be used as a temporary staircase. By firmly fixing with a nail or the like, a level is placed on the upper surface of the cross-linking material, and leveling is performed, whereby 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 temporary board or a decorative material having low strength can be used. Therefore, similarly to the invention of claim 1, curing is not required, and the effect is exhibited. Also,
The temporary board and the decorative material are placed and fixed on the U-shaped step section composed of the cross-linking material and the horizontal plane firmly fixed to the side plate, so that they do not bend and no tampering occurs .

According to the third aspect of the present invention, since the cross-linking material is fixed to the front surface of the vertical plane, the mounting is easy.

[0019]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of a temporary staircase according to the present invention will be described with reference to the drawings. FIG.
FIG. 2 is a perspective view showing a first embodiment of a temporary and combined staircase of the present invention, and FIG. 2 is a perspective view showing only a side plate of FIG. FIG. 3 is a sectional view of FIG. 1, and FIG.
FIG.

The upper portions of the pair of parallel side plates 1 and 1 are stepped by cutting in advance in a saw-tooth shape, and are arranged in an inclined manner so that a plurality of pairs of horizontal surfaces 1a and 1a and vertical surfaces 1c and 1c are formed. Is formed. In addition, when the stairs are completed, each pair of horizontal surfaces 1a, 1
On a, a tread plate 2 to be described later is placed in a tiered manner and fixed with wood screws or nails N. Further, the vertical planes 1c, 1c, which are the front end surfaces of the lower horizontal surfaces 1a, 1a, are fitted with risers 6 and fixed with nails or the like.

The tread 2 will be described. The tread 2 comprises a separate base material 2a made of, for example, thin, high-strength veneer, and a decorative material 2b superposed on the upper surface thereof. In addition, the base material 2a is given sufficient strength and is firmly fixed with a nail N or the like, and only the base material 2a is attached to the horizontal surfaces 1a, 1a. It is configured to be possible.

In addition, as the base material 2a, plywood (having a thickness of 15 mm or more), a repair material or other wood material, plastic, metal or the like is used. Further, if a fitting means made of irregularities is provided on a part of the surface in order to easily attach the makeup material 2b to be attached later, the attachment at a fixed position is possible. Furthermore, it is safe for an operator to provide a non-slip groove on the surface.

On the other hand, the decorative material 2b is a part that takes care of the beauty of the stairs. When the indoor construction work is almost completed and curing is no longer necessary, the decorative material 2b is overlaid and fixed on the upper surface of the base material 2a. As the fixing method, in addition to the conventional means such as nails and wood screws, the above-mentioned method of fitting can be considered. If necessary, a baseboard may be used to hide the gap between the wall surface and the decorative material 2b (not shown).

At the time of construction, first, the side plates 1 and 1 are temporarily fixed to the left and right wall surfaces, only the base material 2a is placed on the horizontal surfaces 1a and 1a, and the nails N and the like are used so that they can be used as tread portions of the temporary stairs. Is fixed firmly. At that time, the base material 2a
Then, a level is placed, and if necessary, nailing is performed again, and leveling is performed. Thus, the side plates 1,
1 is completely fixed and can be used as a work elevating passage. Thereafter, when installing the stairs, the decorative material 2b is overlaid on the upper surface of the base material 2a and fixed, and the riser plate 6 is fixed to the vertical surfaces 1c, 1c, respectively.

According to this, the base material 2a is later covered with the decorative material 2b and the riser 6, so that the base material 2a can be leveled out without paying special attention to scratches and dirt.
It is possible to perform nailing or the like, and leveling can be performed extremely easily as compared with the conventional example. Also, as described above, the one in which only the base material 2a is attached to the horizontal surfaces 1a, 1a can be used as a temporary staircase. No need to pay special attention to scratches and dirt.

Therefore, curing is not required, and various problems such as the use of expensive commercially available curing covers, the addition of existing plywood and the like, and the problem of peeling of the decorative material with the adhesive tape are eliminated, and the 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 no treading occurs.

Next, a second embodiment of the present invention will be described with reference to FIGS. The upper portions of the pair of parallel side plates 11, 11 are cut in advance in a saw-tooth shape so as to be stepped, and are inclined to form horizontal planes 11a, 11a and a vertical plane alternately. It is configured as follows. And the horizontal planes 11a, 1
The portion where 1a intersects with the vertical plane is further notched.

At the time of construction, as shown in FIG. 5, first, the notched intersection portions 11a, 11a, 11c, 11
Cross-linking material 4 is attached to c and firmly fixed with nails or the like, and can be used as a temporary staircase and a tread portion on the upper surface of the cross-linking material 4 and the upper surface of the U-shaped step portion formed of the horizontal surfaces 11a, 11a. Next, a temporary plate 5 having sufficient strength, such as an end plate generated at the site, is firmly temporarily fixed with a nail N or the like. In addition, although it is slightly unstable at the time of elevating, it is also possible to elevate and lower with the cross-linking material 4 without attaching the temporary plate 5.

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 to perform leveling. Will be In this way, the permanent fixing of the side plates 1 and 1 is completed, and the side plates 1 and 1 can be used as a work elevating passage. Further, the temporary board 5 is removed at the final stage of the construction where the necessity has disappeared, and instead, as shown in FIGS. 6 and 7, the decorative material 12 is placed thereon and fixed with nails N and the like. , Cross-linking material 4
The riser plate 6 is applied to the front and vertical surfaces of the vehicle and fixed with nails or the like, thereby completing a staircase.

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 temporary board 5 is scratched or stained, it is replaced by the decorative material 12, so that the finished appearance of the stairs is not impaired. Then, the cross-linking material 4 is moved to the horizontal surfaces 11c, 1
Since it is applied to the cutout portion where 1c and the vertical plane intersect, the positioning of the cross-linking material 4 on the side plate 11 and its holding become extremely easy. 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, without paying special attention to scratches and dirt, It is possible to permanently fix the side plates 11 and 11 to the wall surface, and leveling out becomes extremely easy as compared with the conventional example.

As described above, the temporary plate 5 made of scraps or the like attached to the upper surface of the cross-linking material 4 and the horizontal surfaces 11a, 11a can be used as a stable temporary staircase. Is replaced with the cosmetic material 12 later, so that it is not necessary to pay particular attention to the scratches and dirt on the temporary board 5. Therefore, similarly to the first embodiment, curing is not required, and the effect is exhibited. In addition, since the cross-linking material 4 serves as a support for the temporary board 5 and the decorative material 12 which are to be treads as described above, no tapping occurs as in the first embodiment.

Since the cross-linking material 4 is supported by the notch, the degree of fixing is increased as compared with the case where the cross-linking material 4 is simply fixed with a nail or the like.
The temporary board 5 and the decorative material 12 having low strength can be used.

In the second embodiment, the cross-linking material 4 is fixed to the notch portion where the horizontal surfaces 11c, 11c intersect with the vertical surface, but the vertical surface is formed without forming the notch portion. May be fixed to the front surface of the camera.

[0034]

According to the first aspect of the present invention, the scratches and dirt on the base material are covered with the decorative material later and covered.
It is not exposed on the surface and does not impair the appearance of the finished staircase. Then, in the construction, first, only a base material such as a veneer board having sufficient strength is placed on a horizontal surface, and firmly fixed with nails or the like so that it can be used as a temporary staircase, and a level is attached to the base material. By mounting and 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 caused by nailing and the like, and leveling out becomes extremely easy as compared with the conventional example.

Further, as described above, the one in which only the base material is mounted on the horizontal surface can be used as a temporary staircase, and since the base material is later covered with a decorative material, it is possible to prevent rainfall and work. There is no need to pay special attention to scratches and dirt due to necessary lifting and lowering. 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 no stomping occurs.

According to the second aspect of the present invention, the scratches and dirt on the cross-linking material are later covered with the riser, so that they are not exposed on the surface and the appearance of the finished stairs is not impaired. Then, in the construction, first, a cross-linking material having sufficient strength, such as scraps generated at the site, is applied to the notch where the horizontal plane intersects with the vertical plane so that it can be used as a temporary staircase. By firmly fixing with a nail or the like, a level is placed on the upper surface of the cross-linking material, and leveling is performed, whereby 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 and the vertical plane intersect, the positioning and holding of the cross-linking material on the side plate and the leveling 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 temporary board or a decorative material having low strength can be used. Therefore, similarly to the invention of claim 1, curing is not required, and the effect is exhibited. Also,
The temporary board and the decorative material are placed and fixed on the U-shaped step section composed of the cross-linking material and the horizontal plane firmly fixed to the side plate, so that they do not bend and no tampering occurs .

According to the third aspect of the present invention, since the cross-linking material is fixed to the front surface of the vertical plane, the mounting is easy.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a first embodiment of a temporary dual-purpose staircase of the present invention.

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

FIG. 3 is a sectional view of FIG. 1;

FIG. 4 is an exploded sectional view of FIG.

FIG. 5 is a cross-sectional view showing a state in which a temporary board according to a second embodiment of the present invention is attached to the temporary / staircase.

FIG. 6 is a sectional view showing a final state in which the temporary board of FIG. 5 is removed and a riser and a decorative material are attached.

FIG. 7 is an exploded sectional view of FIG.

FIG. 8 is a sectional view showing a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Side plate 1a Horizontal surface 1c Vertical surface 2 Tread 2a Base material 2b Decorative material 4 Crosslinking material 5 Temporary plate 6 Kick-in plate 7 Curing material 11 Side plate 11a Horizontal surface 11b, 11c Notch 12 Cosmetic material N nail etc.

Claims (3)

[Claims] 1. A pair of parallel side plates arranged in an inclined manner, each of which is placed on a horizontal surface formed in a step shape by cutting in a sawtooth shape in advance, and can be used as a tread portion of a temporary staircase. The base material firmly fixed to the base material, the decorative material superimposed on and fixed to the upper surface of the base material at the time of setting the stairs, and the vertical surface formed in the step shape by notching the same at the time of setting the stairs, respectively A temporary combined staircase comprising a fixed riser plate. 2. A portion where a horizontal surface and a vertical surface, which are formed in a step shape by cutting in advance in a saw-tooth shape, are further cut out at an upper portion of a pair of parallel side plates arranged in an inclined manner,
A cross-linking material fixed to the notched portion, a temporary plate firmly fixed on the upper surface of the cross-linking material and the horizontal surface so as to be usable as a step plate portion of a temporary staircase, and a temporary plate after removing the temporary plate at the time of installing the stairs A temporary staircase comprising a decorative material fixed in place of a plate, and a riser plate fixed to the front surface of the cross-linking material and the vertical surface when the stairs are installed. 3. A cross-linking material which is fixed to a front surface of a vertical plane formed by cutting in advance in a sawtooth shape above a pair of parallel side plates arranged in an inclined manner, and an upper surface of the cross-linking material. A temporary board firmly fixed to the horizontal surface so as to be usable as a step board of a temporary stair; a decorative material fixed to the temporary board after removing the temporary board when installing the stairs; And a riser fixed to the front surface of each of the temporary stairs.