JP2004060154A - Stairway flooring - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide stairway flooring having visually conspicuous part corresponding to a corner section of a stairway and having difficulty in abrasion even if footing pressure is concentrated thereon. <P>SOLUTION: Since the corner section 6 is welded in a state to overlap it from the upper side of a sheet section 3, the corner section 6 is in a state to swell, it is visually conspicuous and, at the same time, it is not so much worn out since the corner section 5 of the stairway is covered with the corner section 6. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a floor material for stairs used by being stuck on stairs.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, a synthetic resin floor material has been attached from the tread surface of a stair to a part of a rise in order to reduce noise when the stairs are moved up and down and to improve slip resistance (Japanese Patent Application Laid-Open No. Hei 10-331374). Reference). The floor material has a structure in which a tread portion to be stuck to a tread surface and a riser portion to be stuck to a riser are integrally formed. The tread surface and the riser are bent at 90 ° in advance, facilitating the work of attaching to the stairs.
[0003]
[Problems to be solved by the invention]
However, in such a conventional floor material, the corner portion between the tread surface and the rise in the stairs is covered by a simple bent portion of the floor material because of the integral structure in which the rise portion is bent from the tread portion. It is particularly inconspicuous and easily worn. Originally, the part corresponding to the corner of the stairs is a place where people who go up and down the stairs may have a risk of stepping off, so it is necessary to visually stand out, and because the tread pressure is concentrated and it is easy to wear , Durability is also required.
[0004]
The present invention has been made by paying attention to such a conventional technique, and provides a stair flooring material in which a portion corresponding to a corner of a stair is visually conspicuous and hard to wear even when tread pressure is concentrated. Is what you do.
[0005]
[Means for Solving the Problems]
The invention according to claim 1 comprises a synthetic resin sheet portion to be stuck to the tread surface of the stairs, and a synthetic resin corner portion bent from the tread surface to a kick-up. The surface corresponding portion is superposed on the end surface of the sheet portion and ultrasonically welded.
[0006]
According to the first aspect of the present invention, the corner portion corresponding to the corner portion of the stairs is a member separate from the sheet portion and is ultrasonically welded in a state of being superimposed from above the sheet portion. Is raised from the seat portion and is visually noticeable. In addition, since the outermost corners of the stairs are covered with the corners, the wear is less than in the conventional case where the bent portions of the seat portion correspond. Further, the bonding by ultrasonic welding is strong, and the sheet portion and the corner portion are completely integrated, so that there is no problem due to the separate corner portion.
[0007]
The invention according to claim 2 is that, on the back surface of the tread corresponding portion of the corner portion, from the terminal of the tread corresponding portion to the middle position of the tread corresponding portion, a concave portion having a depth matching the thickness of the seat portion is provided. The stepped portion corresponding to the tread surface and the end of the seat portion are ultrasonically welded in a state where the end portion of the seat portion is housed in the recess.
[0008]
According to the second aspect of the present invention, a portion corresponding to the corner of the staircase is covered only by the corner while securing the welding area with respect to the seat in the recess of the corner, so that the stepping force is applied to the stair via the corner. Is transmitted directly to the corners of the vehicle, and exhibits a high repulsive force against the treading force, thereby reducing the risk of stepping off the foot.
[0009]
The invention described in claim 3 is characterized in that a plurality of horizontal ribs are formed on the surface of the tread corresponding portion, and the horizontal rib portions are selected and welded to the seat portion.
[0010]
According to the third aspect of the present invention, in the tread corresponding portion, the thick horizontal rib portion is selected and ultrasonically welded, so that traces of welding are less likely to be generated on the surface side of the corner portion.
[0011]
The invention according to claim 4 forms a convex pattern for slip prevention on the surface of the sheet portion, and the convex pattern is formed on the surface of the sheet portion only in a range where the portion is ultrasonically welded to the tread surface corresponding portion of the corner portion. Is flattened by polishing.
[0012]
According to the fourth aspect of the invention, the convex pattern is polished and removed and flattened to the area corresponding to the tread surface corresponding to the tread surface while the anti-slip property of the sheet portion is enhanced by the convex pattern. Strength increases.
[0013]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, a preferred embodiment of the present invention will be described with reference to FIGS.
[0014]
First, the structure of the flooring 1 according to this embodiment will be described with reference to FIG. The flooring 1 is formed of a sheet portion 3 to be stuck on a tread surface 2 of a stair, and a corner portion 6 covering a corner portion 5 formed by the tread surface 2 and a riser 4.
[0015]
The sheet portion 3 is a soft PVC sheet having a thickness of 2.5 mm, and the surface 3a is provided with a convex pattern 7 for obtaining slip resistance. As the sheet portion 3, in addition to a vinyl-based resin such as polyvinyl chloride, a synthetic resin such as an olefin-based resin such as polyethylene or an amide-based resin such as nylon can be used in a single-layer or laminated structure. Further, an inorganic filler such as calcium carbonate may be blended in the synthetic resin. Further, linen cloth or the like may be laminated on the synthetic resin layer.
[0016]
The corner portion 6 is made of hard PVC having an L-shaped cross section bent from the tread surface 2 to the riser 4, and covers the corner portion 5 formed by the tread surface 2 and the riser 4. For the corner portion 6, a material that can be ultrasonically welded to the sheet portion 3 can be used, and the same synthetic resin as the sheet portion 3 can be used. However, in general, the blending amount of the inorganic filler is increased in order to make the corner portion 6 harder.
[0017]
The corner portion 6 integrally has a tread corresponding portion 8 along the tread surface 2 and a rise corresponding portion 9 along the rise 4. The tip of the riser corresponding portion 9 is gradually reduced in thickness so as to closely contact the riser 4 without any step.
[0018]
The tread corresponding portion 8 is basically formed to be thicker than the seat portion 3, and four lateral ribs 10 are further formed on the surface 8a at predetermined intervals. A concave portion having a depth corresponding to the thickness of the end of the seat portion 3 is provided on the back surface 8b of the tread corresponding portion 8 from the terminal of the tread corresponding portion 8 to an intermediate position (up to the third lateral rib 10). 11 are formed. Then, in a state where the end of the seat portion 3 is stored in the concave portion 11, the tread surface corresponding portion 8 and the end of the seat portion 3 are joined by ultrasonic welding.
[0019]
Next, the joining operation by the ultrasonic welding will be described with reference to FIGS. Since the convex portion 7 is formed on the entire surface 3a of the sheet portion 3 before being ultrasonically welded to the corner portion 6 (see FIG. 2), a range R to be ultrasonically welded to the corner portion 6 (see FIG. 2). 3), the convex pattern 7 is removed by polishing and flattening. This is to increase the welding strength between the sheet portion 3 and the corner portion 6.
[0020]
The corner portion 6 is placed on the jig 12 with the back surface 8b facing upward. On the surface of the jig 12, an uneven surface 12a that matches the surface 8a of the corner 6 is formed, so that the corner 6 can be held in a stable state.
[0021]
Next, a range R where the convex pattern 7 of the sheet portion 3 is removed is overlapped with the concave portion 11 of the corner portion 6 held on the jig 12, and the end of the sheet portion 3 is stored in the concave portion 11. To Since the thickness of the sheet portion 3 matches the depth of the concave portion 11, the back surface 3b of the sheet portion 3 and the back surface 8b of the corner portion 6 are on the same plane.
[0022]
Next, three points corresponding to the three lateral ribs 10 located in the concave portion 11 are selected as welding points A, B, and C from the back surface 3b side of the sheet portion 3 and are sequentially superposed by the horn 13 of ultrasonic welding. Sonic welding. Since the thick transverse rib 10 is selected and subjected to ultrasonic welding, it is hardly damaged, and traces of ultrasonic welding hardly occur on the surface 8a side of the corner portion 6.
[0023]
In the flooring material 1 manufactured as described above, since the corner portions 6 corresponding to the corner portions 5 of the stairs are separate members from the seat portion 3 and are welded to each other from above the seat portion 3, the corner portions 6 are welded. 6 rises from the sheet portion 3 and is visually noticeable. Further, since the outside of the corner portion 5 of the stairs is covered with the corner portion 6, wear is small.
[0024]
In particular, in this embodiment, since the portion corresponding to the corner 5 of the stairs is covered only by the hard corner 6, the treading force is directly transmitted to the corner 5 of the stairs via the corner 6, and the treading force is reduced. High repulsion, reducing the risk of stepping off.
[0025]
【The invention's effect】
According to this invention, since the corner portion is welded in a state of being superposed from the upper side of the sheet portion, the corner portion is raised from the sheet portion, which is visually noticeable, and the corner portion of the stairs is covered with the corner portion. Wear is low.
[Brief description of the drawings]
FIG. 1 is a perspective view showing a floor material attached to a stair according to an embodiment of the present invention.
FIG. 2 is a sectional view showing a state before ultrasonic welding of a sheet portion and a corner portion in FIG. 1;
FIG. 3 is a cross-sectional view showing a state in which the end of the sheet portion of FIG. 2 is housed in a recess of a corner portion.
FIG. 4 is a cross-sectional view showing a state in which the end of the sheet portion of FIG. 3 is housed in a concave portion of a corner portion and then ultrasonically welded by a horn sequentially.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Floor material 2 Tread surface 3 Seat part 3a Front surface 3b Back surface 4 Rising up 5 Corner part 6 Corner part 7 Convex pattern 8 Tread surface corresponding part 8a Front surface 8b Back surface 9 Rising up part 10 Side rib 11 Depression 12 Jig 12a Uneven surface 13 Horn H Range A, B, C Welding point

Claims (4)

It is composed of a synthetic resin seat that is attached to the tread surface of the stairs, and a synthetic resin corner portion that is bent from the tread surface to the rise.
A floor material for stairs, wherein a portion corresponding to a tread surface of the corner portion is superposed and welded to a surface of an end portion of the seat portion. It is a flooring material for stairs according to claim 1,
On the back surface of the tread corresponding portion of the corner portion, from the terminal of the tread corresponding portion to a halfway position of the tread corresponding portion, a concave portion having a depth matching the thickness of the seat portion is formed,
A floor material for stairs, wherein a tread corresponding portion and an end of a seat portion are welded in a state where the end portion of the seat portion is stored in the recess. It is a flooring material for stairs according to claim 1 or claim 2,
Forming a plurality of horizontal ribs on the surface of the tread corresponding portion,
A floor material for a staircase, wherein the lateral rib portion is selected and ultrasonically welded to a seat portion. It is a floor material for stairs according to any one of claims 1 to 3,
A convex pattern for preventing slippage was formed on the surface of the sheet portion, and the surface of the sheet portion was flattened by polishing and removing the convex pattern only to the extent that it was ultrasonically welded to the tread surface corresponding portion of the corner portion. A flooring material for stairs, characterized in that:

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