JPH0735979Y2 - Floor - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a staircase used in, for example, an industrial production house.

<Prior Art> Most wooden staircases in houses are mainly composed of left and right sasara girders mounted on receiving members, step plates and risers. And the installation of the stairs is in the early stage in the construction, because it can be used as a construction passage to the upper floors.

<Problems to be Solved by the Invention> The conventional stairs described above have some drawbacks. That is, it is usually difficult to fix the upper and lower portions of the riser plate by making the riser plate sandwiched between the upper and lower stage plates, and it is often unstable. In addition, the upper and lower end surfaces of the riser plate may be lifted from the step plate surface due to the contraction of the riser plate, and the resulting gap may be very unsightly to the eyes each time the stairs rise up the stairs.

Moreover, the stairs are installed early and are used as a passage for construction, so there are many opportunities to damage them. Naturally, curing is performed to prevent this, but it is more complicated than expected to carry out this so as to ensure a secure and safe passage. For example, even if the surface is covered with plywood as a temporary protective plate, nailing cannot be done at the places where nail holes can be seen later, but since it also carries heavy objects as a construction passage, it is extremely dangerous unless it is securely fixed. is there. Fixing plywood with these points in mind is not easy.

It is an object of the present invention to provide a stairway in which a riser plate can be easily and securely attached and curing as a construction passage can be simplified.

<Means for Solving the Problem> The staircase according to the present invention is a wooden staircase including a sasara girder attached to the receiving members on both the left and right sides, a step plate, and a riser plate, and the step plate has a lower surface. A stepped portion having a reduced thickness is provided along the front end face, and the stepped portion is arranged so as to ride on the upper end face of the lower riser plate. The part is mounted on the sasara girder, and the front side face adjacent to the lower end face is arranged so as to contact the end face on the back side of the step plate. The upper face of the step plate, the front end face, and the riser plate of the stepped portion. It was configured with a makeup cover that continuously covers the surfaces up to the side surface.

<Function> The lower end side surface of the riser plate is sandwiched between the rising surface of the notch of the sasara girder and the rear end surface of the lower step plate, and the upper end side surface is the vertical surface of the step part of the upper step plate and the decorative cover. It is clamped by the end face at the lower front side and is restricted from shifting out of the plane.

Even if the stairs are used as a construction passage without attaching a decorative cover and the top surface and the front end surface of the step plate are dirty or have small scratches, they will not be visible if the decorative cover is attached after the completion of construction.

<Embodiment> An embodiment of the present invention will be described with reference to the drawings.

As shown in FIG. 1, the staircase 1 according to the present embodiment includes Sasara girders 3a and 3b on the left and right receiving members 2a and 2b, a step plate 4,
It is a wooden staircase whose main components are the riser board 5. This staircase 1 is installed in a staircase room 8 in which the left and right sides and the back side are surrounded by walls 6 and the front opening is an ascending opening 7. Therefore, staircase 8
The sassar girder receiving members 2a, 2b are obliquely attached to the left and right side walls 6 of, and the sasara girders 3a, 3b are mounted and fixed there. The stairs 1 are assembled by sequentially mounting the step plate 4 and the riser plate 5 on the sasara girders 3a and 3b.

As shown in FIG. 2, the step plate 4 has an ascending opening 7 on its lower surface 9.
A stepped portion 11 having a reduced thickness is provided in a portion along the front end face 10 when viewed from above. The step portion 11 is arranged so as to ride on the upper end surface 12 of the lower riser plate 5. The riser plate 5 is provided with small cutouts 14 so that the left and right end portions of the lower end surface 13 of the riser plate 5 ride on the sassar girders 3a and 3b and are not displaced to the left and right. The lower portion of the front side surface 15 adjacent to the lower end surface 13 is arranged so as to contact the rear end surface 16 of the lower step plate 4. It should be noted that the lower end portion 17 of the riser plate 5 is obliquely inserted on the rising surface side of the corner portion of the right-angled cutouts of the sasara girders 3a, 3b, and the cut-out rotation hole 18 is provided for vertically raising and mounting. ing.

A decorative cover 21 is provided to continuously cover the upper surface 19 of the step plate 4, the front end surface 10, and the small area surface 20 until the step portion 11 contacts the front side surface 15 of the riser plate 5. This makeup cover 21 is approximately J
It was made of hard plastic and had a V-shaped cross-section and a width equal to the length of the step plate 4, and the surface was provided with an uneven pattern that also served as a slip stopper. When this decorative cover 21 is applied to the upper surface 19 of the step plate 4 and moved horizontally toward the rear side, the front side bent portion can be mounted in such a manner that the small area surface 20 of the stepped portion 11 and the upper surface 19 are sandwiched. In order to prevent the attached makeup cover 21 from slipping and falling off, as shown in FIG. 3, the L-shaped skirting boards 22 are sequentially attached to the left and right walls 6 of the staircase 8 to press the makeup cover 21.

Since the staircase 1 of this embodiment is configured as described above, the makeup cover 21 can be attached very easily. Therefore, even if this staircase 1 is installed in the initial stage for use as a construction passage, if the decorative cover 21 is not attached, there is no substantial problem even if the stairs 4 are slightly soiled or scratched. If the makeup cover 21 is attached at the end of construction and the L-shaped skirting board 22 is pressed, no stains or scratches can be seen. That is, the conventional curing for use in the construction passage can be omitted, and the cost and time can be saved.
Further, it is very easy to carry out curing to prevent the side surface 15 of the riser plate 5 from being soiled or damaged. For example, even if it is covered with plywood, there is no problem if the nail holes are hidden by the decorative cover 21 later if they are nailed to the step plate 4 side.

Further, since the upper and lower side surfaces of the riser plate 5 are supported in a sandwiched state, the riser plate 5 is extremely stable, and there is no situation in which the gap of the end face portion due to the contraction of the plate can be seen unlike the conventional case.

The staircase of the present invention can be modified in various ways other than the above embodiment. For example, it is possible to easily attach a carpet or a wear-resistant decorative sheet to the surface of the decorative cover to change the feeling and characteristics. Also, replacement is easy.

<Effect of the Invention> According to the present invention, the riser plate is stably attached, and the curing for use as a construction passage can be extremely simplified.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of a stairway according to an embodiment, FIG. 2 is a partially enlarged vertical sectional view taken along the line AA of FIG. 1, and FIG. It is a figure. 1 ... Stairs, 2a, 2b ... Receiving member, 3a, 3b ... Sasara girder, 4 ... Step plate, 5
… Racing plate, 10… Front end face, 11… Step portion, 12… Upper end face, 13… Lower end face, 15… Front side face, 16… Back end face, 19… Top face, 20… Steps up to the side of the riser plate , 21 ... Makeup cover.

Claims (1)

[Scope of utility model registration request] 1. A wooden staircase comprising a sasara girder attached to left and right receiving members, a step plate, and a riser plate, wherein the step plate has a thin thickness at a portion along a front end surface of a lower surface. The stepped portion is provided so that the stepped portion rides on the upper end face of the lower riser plate, and the left and right end portions of the lower end face of the riser plate ride on the sasara girder and are adjacent to the lower end face. The front side surface of the step plate is arranged so as to contact the end surface on the back side of the step plate, and the top surface of the step plate, the front end surface, and the surface up to the side surface of the riser plate of the stepped portion are continuously covered. A staircase characterized by having a cover.