JP3189203B2 - Floor sheet for stairs - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a floor sheet which is used by being attached to a base of a staircase in order to improve the design of the staircase, the slip resistance when climbing up and down, and the sound insulation.

[0002]

2. Description of the Related Art Conventionally, a synthetic rubber floor sheet has been pasted on a stairway under a staircase or from a tread surface to a rise from a tread surface in order to reduce noise during climbing and to improve slip resistance. Have been.

[0003] However, synthetic rubber stair floor seals have been developed.
Since the joint strength of the base of the stairs to the tread surface and the corner cannot be increased as much as possible, there is a concern that the stairs may be separated or displaced, or the floor sheet may be separated or displaced. There was a danger that pedestrians would trip. Further, the synthetic rubber floor sheet for stairs has poor weather resistance, so that there is a problem that if it is used for stairs provided outdoors, it will deteriorate in a relatively short period of time.

[0004]

Therefore, the present applicant has previously disclosed in Japanese Patent Application No. 7-36146, weather resistance, slip resistance, and the like.
We have proposed a floor sheet for stairs with a thinner back surface at the corners in order to improve sound insulation and the like, increase the bonding strength with the base of the stairs, and further enhance workability and workability.

[0005] However, after that, the floor sheet or another floor sheet or the like is stuck to the base of the stairs, and the ascending / descending test is continuously repeated. It became clear that the corner covering part of the sheet was as easy to reduce as the covering part of the tread surface and the most liable to tear.

[0006] This phenomenon is caused in part by the fact that the back surface of the corner covering portion is thinned linearly in the floor sheet for stairs proposed earlier, It is considered that the repeated stepping pressure is transmitted as a shear force to the floor sheet surface, and the stress is concentrated on the corner covering portion.

That is, when stress concentrates on the corner covering portion of the elastic floor sheet for stairs, friction occurs on both the front and back surfaces of the corner covering portion, and gradually from both surfaces. It became worn out, and finally came to the point of tearing at its limit.

[0008] The present invention has been made in view of the above circumstances, and provides a bonding force, a slip-proof property, and a sound-insulating property of a floor sheet for stairs.
Needless to improve the durability, it is a floor sheet for stairs that has greatly improved the durability and durability of the corner covering part. It is an object of the present invention to provide a floor sheet for stairs, which has high performance.

[0009]

In order to achieve the above object, a stair floor sheet according to the first aspect of the present invention is a synthetic resin floor sheet to be stuck to a stair, comprising a tread covering portion and a kick-up. The corner covering portion with the covering portion is approximately 90 on the back side.
It is characterized in that it is bent, a built-up portion is formed on the surface of the corner covering portion, a protrusion is formed on the surface of the tread covering portion, and vertical ribs are formed at regular intervals on the surface of the rise covering portion.

The floor sheet for a staircase according to claim 2 is a floor sheet made of a synthetic resin to be stuck to a staircase,
The corner covering portion between the tread covering portion and the rising covering portion is bent at approximately 90 ° to the back side, and a build-up portion is formed on the corner covering portion surface, and a groove leading to the tread covering portion is constant in the build-up portion. The stair floor sheet according to claim 3 is formed at intervals and has a protrusion formed on the surface of the tread covering portion. The stairs floor sheet according to claim 4 is characterized in that the vertical ribs are formed at regular intervals, and the stair floor sheet according to any one of claims 1 to 3, wherein Characterized in that an adhesive is laminated on the portion.

In the floor sheet for stairs according to the first aspect, since the corner covering portion is reinforced by the built-up portion and does not easily wear out even when stress is applied, the floor covering sheet is attached to the base of the stairs and then the corner covering portion is attached. Until the sheet is torn, it can be used more safely and for a longer period of time as compared with the conventional floor sheet for stairs, and the projections formed on the tread covering portion surface exhibit good slip resistance. And, since the rising ribs are reinforced so as not to warp by the vertical ribs, even if a poor joining of the rising coatings occurs, it is possible to prevent the ends of the rising coatings from being turned up,
It is possible to secure more safety.

Further, the floor sheet for stairs of the second aspect can be used safely for a long period of time because the corner covering portion reinforced by the overlaying portion is not easily worn away, and is formed on the tread surface covering portion surface. The protrusions provide good anti-slip properties, but in addition to this, water on the surface of the tread covering becomes easier to flow down the stairs from the groove formed in the overlaid portion, and debris that accumulates on the surface is also down the stairs. It becomes easier to sweep in the direction.

Further, in the floor sheet for stairs according to the third aspect, since the rise-up covering portion is reinforced so as not to be warped by the vertical rib formed on the surface of the rise-up covering portion, poor joining of the rise-up covering portion occurs. Even if it is, it is possible to prevent the end portion of the rise covering portion from being turned up, and it is possible to secure more safety.

If the adhesive is laminated on the entire back surface or on a predetermined surface of the back surface as in the floor sheet for stairs according to the fourth aspect, the sticking work at the construction site becomes extremely easy.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a floor sheet for stairs according to the present invention will be described below in detail with reference to the drawings.

FIG. 1 is a perspective view showing one embodiment of a stair floor sheet 1 of the present invention, and FIG. 2 is a stair floor sheet 1 of the present invention adhered to a stair base 2 made of striped steel. FIG. 3 is a sectional view showing another state in which the stair floor sheet 1 of the present invention is attached to a stair base 2.

The stair floor sheet 1 shown in FIG. 1 heats a synthetic resin sheet having a single-layer structure or a multilayer structure of two or more layers mainly composed of a vinyl resin such as polyvinyl chloride or an olefin resin such as polypropylene. The tread surface covering portion 11, the corner covering portion 12, and the rise covering portion 13 are formed by softening by, for example, applying a predetermined radius to the back surface and bending the same approximately 90 °.

As shown in FIG. 1, a non-slip projection 111 having a height of about 0.5 to 2 mm formed by embossing is formed on the surface of the tread covering portion 11 of the floor sheet 1 for stairs. In addition, the surface of the corner covering portion 12 is provided with a built-up portion 121 of approximately the same height. In order to prevent accumulation of water and dust on the tread covering portion 11, grooves 122 communicating with the tread covering portion 11 are formed at regular intervals in the overlay portion 121.

Further, vertical ribs 131 having a height of about 0.5 to 2 mm are provided at regular intervals on the surface of the rising covering portion 13 of the floor sheet 1 for stairs in order to prevent warpage toward the surface side. The vertical ribs 131 serve to prevent the rising cover 13 from peeling off from the ends when the floor sheet 1 is attached to the staircase base 2. The vertical ribs 131 are provided on the overlaid portions 12 of the corner covering portions 12.
It may be formed so as to be continuous with 1.

The floor sheet 1 for a staircase of the present invention has abrasion resistance by adding a function improving agent such as a plasticizer, a filler, a coloring agent, a weathering agent and a reinforcing agent to the above-mentioned synthetic resin as a main component. It is possible to improve various physical properties such as durability, stepping feeling, soundproofing, strength, etc., and further by changing the shape and arrangement of the anti-slip projections 111 and by considering the color scheme of the floor sheet surface. It is also possible to improve the design.

The above-mentioned stair floor sheet 1 is stuck to the surface of the stair base 2 outdoors or indoors by selecting a bonding agent having a necessary and sufficient strength and used for a long time. The staircase base 2 may have unevenness even if its surface is flat, and may be made of any material such as steel, concrete and wood.

FIG. 2 is a sectional view showing a construction example in which the stair floor sheet 1 is attached to a stair base 2 made of a striped steel sheet having irregularities on its surface.

The stair floor sheet 1 is used as a bonding agent.
An adhesive 31 and a part thereof are provided with an adhesive 32 on the tread surface 21 of the staircase base 2, an adhesive sealing agent 33 is provided on the corner portion 22, and an adhesive 31 is provided on the riser 23. It is pasted using.

Although the pressure-sensitive adhesive 31 has a problem in its adhesive strength compared to the adhesive 32, on the other hand, it can be manufactured by laminating and integrating with a synthetic resin sheet. The application of the adhesive 32 can be omitted in the sticking operation of the stair floor sheet 1 which is laminated on the stairs, and there is an advantage that the operation can be easily performed in general. In this embodiment, the adhesive 31
Are laminated on the back surface of the rising covering portion 13 of the floor sheet 1 for stairs and most of the back surface of the tread covering portion 11 (excluding the joint portion with the adhesive 32). The adhesive 31 may be laminated on the entire surface.

As the pressure-sensitive adhesive 31, a butyl rubber-based pressure-sensitive adhesive is often used, but the butyl rubber-based pressure-sensitive adhesive may be softened outdoors in summer, so that it can be farther than the rise cover 13 of the floor sheet 1 when going up and down stairs. There is a high possibility that the tread surface covering portion 11 in which stress is concentrated may be shifted. Therefore, in order to prevent this fear beforehand and to ensure safety for a longer period, in the construction example shown in FIG.
The adhesive 32 is provided between the pressure-sensitive adhesives 31 linearly in the width direction of the one covering portion to address the above fear.

Further, considering the service life of the corner covering portion 12 of the floor sheet 1, it is essential that the gap between the corner covering portion 22 and the corner portion 22 of the base of the stairs be increased as much as possible and the fixing strength be increased. For this purpose, a sealing agent 33 having a minimum necessary adhesive force is used for joining the corner covering portion 12. Then, the rear end surface of the tread covering portion 11 is also trimmed with a sealing agent 33 so that the cross section becomes substantially triangular, and adhered to the staircase base 2, so that displacement and peeling of the tread covering portion 11 can be more reliably prevented. ing.

As described above, various bonding agents can be selected when the stair-like floor sheet 1 of the present invention is adhered to the stair base 2, but the simplicity of the work and the safety and durability after the construction are required. It is important to make a flexible choice in consideration of this.

FIG. 3 is a cross-sectional view showing an example in which the stair floor sheet 1 is attached to the entire surface of the stair base 2 whose tread surface 21 is a flat surface. The surface covering portion 11 is joined by an adhesive 31, the corner covering portion 12 is joined by a sealing agent 33, and the rise covering portion is joined by an adhesive 32. The reason for selecting these bonding agents is substantially the same as the reason described with reference to FIG.

The rising covering portion 13 of the floor sheet 1 for stairs
Is set to have substantially the same height as the height of the riser 23 of the base 2 of the stairs, and the lower end of the riser cover 13 and the tread covering 11 of the stair floor sheet 1 stuck one step below.
Is joined with a sealing agent 33. This is desirable because there is almost no fear that the rising covering portion 13 will be turned from the lower end or the tread covering portion 11 will be turned from the rear end.

If the lower end of the rising covering portion 13 and the rear end of the tread covering portion 11 are each edged with a sealing agent 33 so as to have a substantially triangular section and joined to the base 2, V As a result, a drainage groove having a V-shape is formed, and rainwater flowing down the riser cover 13 is immediately drained to both sides of the stairs through the drainage groove.

Since the other structure is the same as that of the floor sheet for stairs of the above-described embodiment, the same reference numerals are given to the same members in FIG. 3, and the description will be omitted.

[0032]

As is apparent from the above description, the floor sheet for stairs of the present invention has the advantage that the corner covering portion where stress is concentrated is less likely to be torn due to abrasion, the tread covering portion has good slip resistance, and has a long length. It can be used safely for a period of time, especially if the groove is formed on the overlay, it is difficult for water or dust to collect on the tread covering surface, and if the vertical rib is formed on the rising covering, the rising is covered The adhesive layer can be prevented from being rounded off, and an adhesive is laminated on the entire back surface or a predetermined portion.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment of a floor sheet for stairs of the present invention.

FIG. 2 is a sectional view showing an example of construction of a floor sheet for stairs according to the present invention.

FIG. 3 is a sectional view showing another example of construction of the floor sheet for stairs of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Floor sheet for stairs 11 Tread surface covering part 12 Corner covering part 13 Rising cover part 111 Projection 121 Overlay part 122 Groove 131 Vertical rib 2 Stair foundation 21 Tread surface 22 Corner part 23 Rising 31 Adhesive Agent 32 Adhesive 33 Sealing agent

Claims (4)

(57) [Claims] 1. A synthetic resin floor sheet to be stuck to a staircase, wherein a corner covering portion between a tread covering portion and a rising covering portion is bent approximately 90 ° to the back side, and a built-up portion is provided on a surface of the corner covering portion. A stair floor sheet, characterized in that a projection is formed on the surface of the tread covering portion and vertical ribs are formed at regular intervals on the surface of the riser covering portion. 2. A synthetic resin floor sheet to be attached to a staircase, wherein a corner covering portion between a tread covering portion and a rising covering portion is bent by approximately 90 ° with a rounded back surface, and the surface of the corner covering portion is provided. A built-up portion is formed on the built-up portion, grooves extending only in the horizontal direction leading to the tread covering portion are formed at regular intervals, and projections are formed on the surface of the tread covering portion. Floor sheet for stairs. 3. The floor sheet for stairs according to claim 2, wherein vertical ribs are formed at regular intervals on the surface of the riser covering portion. 4. The floor sheet for stairs according to claim 1, wherein an adhesive is laminated on the entire back surface or on a predetermined portion of the back surface.