JPH055977B2 - - Google Patents

Description

Detailed Description of the Invention (Industrial Application Field) The present invention utilizes a staircase constructed by fixing treads to a pair of stringers and integrally assembling a landing panel as a work scaffold during construction. The present invention relates to a staircase for a building, etc., in which a finished tread board and a finished landing panel are then placed on the staircase.

(Prior Art) In recent years, buildings have tended to become taller, and various materials and construction methods are required to be lighter and more rational. The steel frame unit stairs used in such buildings are formed by mortaring or pasting surface finishing materials on the steel frame stairs assembled together with the steel frame.

(Problems to be Solved by the Invention) However, the above-mentioned conventional steel frame unit stairs have a problem in that the stairs cannot be used for a considerable period of time after mortaring and surface finishing materials are applied until they harden. This was an obstacle to shortening the construction period.

Therefore, the object of the present invention is to install finishing materials on the stairs that were used as work scaffolds during construction, and after the completion of the work, to restore the stairs to their original state. An object of the present invention is to provide a staircase for a building, etc., which is configured to be used as a staircase.

(Means for Solving the Problems) In order to achieve the above-mentioned object, the stairs for buildings, etc. of the present invention have the following configuration. That is, a pair of stringers located opposite to each other at a constant interval, a plurality of stepped plates arranged in a step-like manner between the pair of stringers and fixed to the stringer, and the stringer a landing panel arranged in a planar manner at the end of and fixed to the stringer;
Engagement parts provided on the front edge and rear edge of the step board, a plurality of finishing step boards each installed on the step board, and a finishing landing laid and fixed on the landing panel. A staircase for a building or the like having a panel, wherein a hook engaging portion is formed on the front edge of the finishing tread, an engaging protrusion is formed on the rear edge of the finishing tread, and The engaging protrusion of the stepped plate is engaged with the engaging portion provided on the rear edge of the stepped plate, and the hook engaging portion of the finishing step plate is engaged with the front edge of the stepped plate. A staircase for a building, etc., characterized in that the finished tread is fixed to the tread by engaging a hook with the tread and fixing the hook to the front edge of the tread.

(Function) A staircase used as a work scaffold during construction is constructed by installing a plurality of steps of a pair of stringers and a landing panel. These stairs are manufactured in advance at a factory, then transported to the construction site and installed as is. At construction sites, workers use these stairs for purposes such as transporting and moving construction materials.

When the construction work enters the finishing stage, a finishing tread is installed on each step of the staircase, and a finishing landing panel is installed on each landing panel. A hook engaging portion is formed on the front edge of the finishing step plate, and an engaging protrusion is formed on the rear edge. And to install the finishing tiers,
The engaging protrusion is engaged with an engaging part provided on the rear edge of the stair step, and the hook engaging part is engaged with the engaging part on the front edge of the staircase via the hook. Fixed to the front edge of the stair tread. The finishing landing panel is also installed on the stair landing panel by a simple engagement structure.

Both the finishing treads and the finishing landing panels are prefabricated in the factory, and these finishing members are simply installed on the stairs at the factory site using a simple engagement structure.

This staircase is built using the so-called dry construction method, and is formed by assembling partially completed staircases produced at a factory without pouring concrete or mortar on site, which significantly shortens the construction period. can.

Furthermore, by interposing a sound absorbing/buffering unit between the stairs, the finished treads, and the finished landing panels, the stairs can reduce walking noise and provide an appropriate cushioning feeling.

(Example) Hereinafter, an example of the present invention will be described with reference to the drawings.

FIGS. 1 and 2 show an embodiment of a staircase 2 constituting a staircase for a building or the like according to the present invention. Stairs 2 are
A pair of stringers 5 are installed between the beams 6 of the building, and then bolts 9 are inserted into the rear bracket 7 and front bracket 8 provided on the step board 3, and
It is fixed between the stringers 5 by screwing and tightening the nuts 10, and the landing panel 4 is plug-welded onto the beam (not shown) fixed between the stringers 5 with bolts and nuts (not shown). It is attached and configured by.

The step plate 3 has a rear end 3a bent upward at a right angle, and then folded back at a right angle to the front side to form a U-shape, and rear brackets 7 are provided at the left and right ends of this U-shape. , the folded portion 18 is provided with an engaging portion 11 for engaging with a finishing step board (not shown) and an engaging portion 12 for a riser cover (not shown). The front end portion 3b is bent downward at a right angle, then folded back at a right angle, further bent downward at a right angle, and then folded back at a right angle toward the front, forming a U-shaped portion at the bottom. is provided with a front bracket 8, and a right-angled bent portion 15 is formed with a locking hole 13 and an insertion hole 14 for a hook (not shown) for fixing the finishing step board.

This complicatedly bent shape has the effect of preventing the mounting members of the tread 3 and the mounting members (not shown) of the finishing treads (not shown) from being seen when looking up at the stairs from below. At the same time, the rigidity in the width direction of the stepped plate 3 is increased. Furthermore, the ribs 16 formed on the flat surface of the stepped plate 3 increase the rigidity in the depth direction.

The landing panel 4 is formed to have a predetermined size, and is supported in the width direction by a beam (not shown).
Rigidity in the depth direction is increased by ribs 17. Here, the landing panel 4 is formed by laying a plurality of pieces, but the dimensions of the landing panel can be set freely, and for example, a single piece may be laid.

3 to 5 show an example of a staircase in a building or the like.

FIG. 3 shows a state in which the finishing step board 20 and the riser cover 21 are placed and fixed on the staircase 2, that is, a completed step.

To explain the structure of the finishing step board 20 shown in the same figure, two panels are overlapped in a hollow shape,
A plurality of approximately hemispherical recesses 23a are formed in the back panel 23, and the top of each recess 23a is spot-welded to the top panel 22. Furthermore, a filler material 35 such as mortar is filled and sealed in the hollow portion formed by the top panel 22 and the back panel 23.

The rear end portion 20a of the finishing step board 20 is provided with a hook-shaped protrusion 27 that is bent at a slightly more acute angle than the right angle when facing rearward, and the hook-shaped protrusion piece 27 is provided at the front end portion 20b and is bent at a right angle when facing forward. A mating projection 28 is provided.

Further, a surface finishing material 25 such as a tile carpet or a vinyl chloride sheet is laid and fixed on the surface of the upper panel 22, and an anti-slip material 26 is attached to the front end portion 20b.

A sound absorbing/buffering unit 24 made of glass wool or the like is attached to the lower surface of the back panel 23, and is fixed in a compressed state between it and the step board 3. This sound absorbing/buffering unit 24, together with the sound absorbing/buffering effect of the finishing step board 20 itself,
It absorbs walking sound and impact sound on the stairs, gives the stairs a suitable cushioning feeling, and also absorbs scratches and unevenness on the surface of the tread 3 to improve the finish of the tread 2.
This prevents the 0 wobbling.

This finished step plate 20 has a hook-shaped protrusion 27 provided on the rear end portion 20a and an engaging portion 1 provided on the step plate 3.
1, then the hook 29 is engaged with the engagement protrusion 28 provided on the front end portion 20b, and the hook 2
9 is pressed downward to compress the sound absorbing/buffering unit 24 and the cushion material 30,
By inserting the end 29a of the hook 29 into the engagement hole 13 of the step board 3 and fixing the hook 29 with the pin 36 inserted through the insertion port 14, the step board 3
Fixed on top.

Here, since the finishing step board 20 is produced in a factory, it is only necessary to attach the finishing step board 20 using the above-mentioned fastening means at the site, making the installation work extremely easy and shortening the construction period.

For the riser cover 21, a single plate such as stainless steel is used, and its upper end is bent at a right angle to form an upper end engaging portion 31, and its lower end forms a gently curved surface and is folded back at an acute angle to the rear. A lower end engaging portion 32 having a substantially mountain-shaped shape is provided upward by bending the portion at the intermediate portion.

The riser cover 21 has its upper end fixed by engaging the upper end engaging part 31 of the riser cover 21 with the engaging part 33 of the stairs and further press-fitting the gasket 34 into the remaining space. The upper chevron-shaped portion of the lower end engaging portion 32 of the stair case 21 and the lower chevron-shaped portion of the stairway engaging portion 12 engage with each other, thereby fixing the lower end portion.

As mentioned above, the riser cover 21 can be installed reliably and extremely easily, and the hook 29 for fixing the finishing step board 20, which is a constituent member of the staircase 2, is extremely easy to install.
By covering members such as the pin 36 and the like, the staircase surface can be beautifully finished.

FIG. 4 shows a landing portion where a finishing landing panel 40 is placed and fixed on the landing panel 4.

To explain the structure of the finishing landing panel 40, two panels are overlapped in a hollow shape, and a plurality of approximately hemispherical recesses 42a are formed in the back panel 42, and the top of each recess 42a is attached to the top panel 41. Spot welded. Furthermore, a filler material 43 such as mortar is filled and sealed in the hollow portion formed by the top panel 41 and the back panel 42 .

Further, a surface finishing material 44 such as a tile carpet or a vinyl chloride sheet is laid and fixed on the surface of the upper panel 41.

A sound absorbing/buffering unit 45 made of glass wool or the like is attached to the lower surface of the back panel 42, and is fixed in a compressed state between it and the landing panel 4. This sound absorption/buffer unit 45 is
Combined with the sound-absorbing and buffering effects of the finishing landing panel 40 itself, it absorbs walking sound and impact noise on the stairs, giving the stairs a suitable stepping feeling (cushion).
It also absorbs scratches and irregularities on the surface of the landing panel 4 to prevent the finished landing panel 40 from wobbling.

This finishing landing panel 4 has its end 40a
An engaging portion 47 bent inward is formed at the end portion 40b, and an engaging protrusion 48 bent outward is formed at the end portion 40b, so that when the finishing landing panel 40 is installed, the engaging portion 47 of an adjacent panel is formed. The engaging protrusions 48 engage with each other to become connected. And the presser metal fitting 5
0 is fixed to the presser metal receiver 51 with screws 52, and at this time, the finishing landing panel 40 is attached to the protrusion 4.
9 is pressed and fixed onto the landing panel 4.

Here, since the finishing landing panel 40 is produced in a factory, it is only necessary to attach the finishing landing panel 40 at the site using the above-mentioned fastening means.
The installation work becomes extremely easy, and together with the installation work of the finishing step board 20, the construction period can be shortened.

(Effect of the invention) During construction, the stairs, which are constructed by fixing the treads to a pair of stringers and integrally assembling the landing panels, are used as work scaffolding, and after the construction is completed, the finished treads and the finished landing A staircase is constructed by fixing the panels to each staircase via a sound absorbing/buffering unit.

These stairs are built using the so-called dry construction method, and are formed by assembling partially completed staircases produced at a factory without pouring concrete or mortar on site.They also have an easy-to-work mounting structure. Because of this, the construction period can be significantly shortened.

Furthermore, by interposing a sound absorbing/buffering unit between the stairs, the finished treads, and the finished landing panels, the stairs can reduce walking noise and provide an appropriate cushioning feeling.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing the stairs of a building, etc. of the present invention, FIG. 2 is a perspective view showing the attached state of the steps of the staircase, and FIG. 3 is a perspective view of the stairs of the building, etc. of the present invention. FIG. 4 is a cross-sectional view showing the stepped part of the staircase in a completed state, FIG. 4 is a cross-sectional view showing the landing part, and FIG. 5 is a cross-sectional view of the staircase. 1...stairs, 2...stairs, 3...treads, 4...
Landing panel, 5... String girder, 20... Finishing step board, 40... Finishing landing panel, 24, 45
...Sound absorption/buffer unit.

Claims (1)

[Scope of Claims] 1. A pair of stringers located opposite to each other at a constant interval, and a plurality of step plates arranged in a step-like manner between the pair of stringers and fixed to the stringers. a landing panel disposed in a planar manner at the end of the stringer and fixed to the stringer; an engaging portion provided at the front edge and the rear edge of the step plate, respectively; A staircase for a building, etc., having a plurality of finishing treads installed on each tread, and a finishing landing panel laid on and fixed on the landing panel, the leading edge of the finishing tread. a hook engaging portion is formed on the rear edge of the finishing step, and an engaging protrusion is formed on the rear edge of the finishing step, and the engaging portion is provided at the rear edge of the finishing step. At the same time, the hook is engaged with the hook engaging portion of the finishing step board and the engaging portion of the front edge of the step board, and the hook is fixed to the front edge of the step board. A staircase for a building, etc., characterized in that the finished tread is fixed to the tread. 2. A staircase for a building, etc., as set forth in claim 1, wherein a sound absorbing buffer material is interposed between the finished tread and the tread.