Edge material for staircase

Abstract

To provide an edge material for a staircase having high designability and good workability.SOLUTION: An edge material 10 for stair has: a base member 16 fixed to a corner part 14 of a staircase 12; and an edge member 20 provided on an upper surface side of the base member 16. The base member 16 has: a substrate part 22 disposed on an upper surface 14A of the corner part 14; an extended plate part 24 extending rearward from a rear end of the substrate part 22 located opposite to a tip of the corner part 14 and having a wall thickness equal to or less than an average thickness of the substrate part 22; a rising piece part 26 extending obliquely upward toward the rear side from the rear end of the substrate part 22; and a front hanging part 28 extending downward from a front end of the substrate part 22 and facing a front surface 14B of the corner part 14. The edge member 20 is formed so as to cover at least an upper surface of the substrate part 22, a front surface of the rising piece part 26, a front surface of the front hanging part 28, and a carpet 34 (finishing material) can be laid on an upper surface of the extended plate part 24 placed on the upper surface 14A of the stair case 12.SELECTED DRAWING: Figure 4

Description

Technical Field

[0001] The present invention relates to a stair edge material.

Background Art

[0002] For stair anti-slip materials, there are cases where, rather than the anti-slip function, protection of the tip (step nose) of the tread surface on the stairs and design properties as a dividing material (edge material) are required. Specifically, it may be required to narrow the width (find width) before and after the edge material so that it looks thinner.

[0003] In order to prevent the anti-slip material from being stepped on by the foot and coming off the stairs, it is necessary to firmly fix the anti-slip material to the stairs. For example, a structure in which the anti-slip material is attached to an anchor previously embedded and fixed in the stairs is disclosed (see Patent Document 1 and Patent Document 2).

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Patent Document 2

Summary of the Invention

Problems to be Solved by the Invention

[0005] However, in the conventional examples described in Patent Document 1 and Patent Document 2 above, when installing the anti-slip material on the stairs, it is necessary to previously embed the anchor during the construction of the stairs, and there is a problem that the construction of the anti-slip material is time-consuming.

[0006] An object of the present invention is to provide a stair edge material with high design properties and good workability.

Means for Solving the Problems

[0007] The edge material for stairs according to the first aspect is an edge material for stairs having a base member fixed to a corner of a staircase and an edge member provided on the upper surface side of the base member. The base member has a substrate portion disposed on the upper surface of the corner portion, an extension plate portion extending rearward from the rear end of the substrate portion located on the side opposite to the tip of the corner portion and having a thickness equal to or less than the average thickness of the substrate portion, an upright piece portion extending obliquely upward and rearward from the rear end of the substrate portion, and a front hanging portion extending downward from the front end of the substrate portion and facing the front surface of the corner portion. The edge member is formed so as to cover at least the upper surface of the substrate portion, the front surface of the upright piece portion, and the front surface of the front hanging portion. A finishing material can be laid on the upper surface of the extension plate portion placed on the upper surface of the staircase.

[0008] Here, the staircase includes all stepped portions having corners, such as a step floor. This edge material for stairs can be fixed to the corners of the stairs without using anchors embedded during staircase construction. Specifically, the substrate portion and the extension plate portion of the base member are disposed on the upper surface of the corner of the staircase, and the front hanging portion of the base member faces the front surface of the corner. In this state, the extension plate portion is fixed to the corner of the staircase by fixing means such as screws. The extension plate portion can be covered by a finishing material laid on its upper surface. Thereby, while narrowing the visible width of the edge member to enhance the design property, the edge material for stairs can be retrofitted and fixed to the corners of the stairs without performing anchor embedding during staircase construction. Further, the upward floating of the end portion of the finishing material can be suppressed by the upright piece portion extending obliquely upward and rearward from the rear end of the substrate portion.

[0009] The second aspect is the edge material for stairs according to the first aspect, wherein at the base of the upright piece portion, the corner portion on the extension plate portion side is formed in an arc-shaped cross section.

[0010] In this edge material for stairs, since the corner portion on the extension plate portion side is formed in an arc-shaped cross section at the base of the upright piece portion, the strength of the base of the upright piece portion can be increased. Further, it is possible to dispose the edge of the finishing material near the base of the upright piece portion.

[0011] In the third aspect, in the edge member for stairs according to the second aspect, the corner portion has a cross-sectional arc shape with a radius r, the thickness of the extension plate portion at the position where the corner portion ends on the side opposite to the standing piece portion is t, and the height from the bottom surface of the extension plate portion to the apex of the standing piece portion is h. Then, the radius r is larger than t / 2 and smaller than h - t.

[0012] In this edge member for stairs, by setting the radius r of the corner portion at the base of the standing piece portion as described above, the strength at the base of the standing piece portion can be appropriately increased, and the edge of the finishing material can be appropriately arranged near the base of the standing piece portion.

[0013] In the fourth aspect, in the edge member for stairs according to any one of the first to third aspects, an inclined surface that slopes upward toward the rear is provided on the upper portion of the standing piece portion, and the edge member covers the inclined surface.

[0014] In this edge member for stairs, since the edge member can cover the inclined surface on the upper portion of the standing piece portion, the design property is enhanced.

[0015] In the fifth aspect, in the edge member for stairs according to any one of the first to third aspects, the upper surface of the extension plate portion slopes downward so as to become thinner toward the rear.

[0016] In this edge member for stairs, since the upper surface of the extension plate portion slopes downward so as to become thinner toward the rear, the step between the rear end of the extension plate portion and the upper surface of the stairs can be reduced.

[0017] In the sixth aspect, in the edge member for stairs according to the fifth aspect, a first inclined portion that slopes downward from the front end portion of the extension plate portion toward the rear and a second inclined portion that slopes downward at an angle larger than that of the first inclined portion are provided on the upper surface of the extension plate portion behind the first inclined portion.

[0018] In this edge material for stairs, a first inclined portion that slopes downward from the front end portion of the extending plate portion toward the rear is provided on the upper surface of the extending plate portion, and a second inclined portion that slopes downward at an angle larger than that of the first inclined portion is provided behind the first inclined portion. Therefore, compared with the case where the upper surface of the extending plate portion is configured with a uniform inclination angle, the length of the extending plate portion toward the rear can be shortened. Thereby, the balance between the thickness and the length of the extending plate portion can be achieved.

[0019] A seventh aspect is the edge material for stairs according to the sixth aspect, wherein the first inclined portion is provided with fixing means for fixing the base member to the upper surface of the stairs.

[0020] In this edge material for stairs, fixing means for fixing the base member to the upper surface of the stairs is provided on the first inclined portion of the extending plate portion. That is, the fixing means is provided at a position away from the overhanging portion or the substrate portion in the base member. Since the fixing means can be provided at a position away from the corner portion of the stairs, compared with the case where the fixing means is provided near the corner portion of the stairs, breakage of the corner portion due to the fixing means can be avoided, and the desired stepping strength of the edge material for stairs after installation can be ensured.

Effects of the Invention

[0021] According to the present invention, it is possible to provide an edge material for stairs with high designability and good workability.

Brief Description of the Drawings

[0022]

Figure 1

Figure 2

Figure 3

Figure 4

Modes for Carrying Out the Invention

[0023] Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings. Components denoted by the same reference numerals in each drawing mean the same or similar components. In the embodiments described below, redundant descriptions and reference numerals may be omitted. Also, the drawings used in the following description are all schematic, and the dimensional relationships of the respective elements shown in the drawings, the ratios of the respective elements, etc. do not necessarily match the actual ones. Also, the dimensional relationships of the respective elements, the ratios of the respective elements, etc. do not necessarily match even between multiple drawings.

[0024] In the drawings, the direction of arrow F indicates the front of the staircase 12, the direction of arrow R indicates the rear of the staircase 12, the direction of arrow U indicates the upper side of the staircase 12, and the direction of arrow D indicates the lower side of the staircase 12. Also, the direction of arrow L indicates the longitudinal direction of the edge member 10 for the staircase. Note that the staircase 12 includes all stepped portions having corners such as treads.

[0025] In FIGS. 1 to 4, the edge member 10 for the staircase according to the present embodiment has a base member 16 fixed to the corner 14 of the staircase 12 and an edge member 20 provided on the upper surface side of the base member 16. The base member 16 and the edge member 20 are integrated by, for example, adhesion during manufacturing.

[0026] [Base member] The base member 16 has a substrate portion 22, an extension plate portion 24, an upright piece portion 26, and a front overhang portion 28. Also, the base member is, for example, a metal member such as stainless steel, aluminum, or brass.

[0027] (Substrate portion) The substrate portion 22 is a portion disposed on the upper surface 14A of the corner portion 14. The substrate portion 22 is, for example, a flat plate-shaped portion that is thicker than the extending plate portion 24. In the front-rear direction (the directions of arrows F and R) of the step 12, the length L1 of the substrate portion 22 is set to be about 5 mm to 30 mm. As shown in FIG. 2, this length L1 refers to the length from the position of the front end of the base member 16 to the position (the position of the thickness t) where the corner portion 24E on the extending plate portion 24 side of the standing piece portion 26 to be described later terminates on the side opposite to the standing piece portion 26. Also, the average thickness AT of the substrate portion 22 is set to be about 1.5 mm to 5.5 mm. This average thickness AT is the average thickness within the range of the length RT. Here, the length RT refers to the length of the flat plate portion of the substrate portion 22 excluding the chamfered portion above the overhanging portion 28 and the corner portion on the substrate portion 22 side at the base of the standing piece portion 26. Note that specific portions such as grooves and protrusions may be formed on the upper surface and the lower surface within the range of the length RT of the substrate portion 22. In that case, the average thickness AT of the substrate portion 22 refers to the average thickness of the flat general portion excluding those specific portions.

[0028] (Extending plate portion) The extending plate portion 24 extends rearward from the rear end located on the side opposite to the tip of the corner portion 14 in the substrate portion 22, and is a portion having a thickness equal to or less than the average thickness AT of the substrate portion 22. In the front-rear direction (the directions of arrows F and R) of the step 12, the length L2 of the extending plate portion 24 is set to be about 15 mm to 40 mm. As shown in FIG. 2, this length L2 refers to the length from the position (the position of the thickness t) where the corner portion 24E on the extending plate portion 24 side of the standing piece portion 26 to be described later terminates on the side opposite to the standing piece portion 26 to the rear end of the extending plate portion 24. The upper surface of the extending plate portion 24 may be inclined downward, for example, so as to become thinner toward the rear. Specifically, the upper surface of the extending plate portion 24 may be provided with, for example, a first inclined portion 24A that inclines downward from the front end portion of the extending plate portion 24 toward the rear, and a second inclined portion 24B that inclines downward at an angle larger than that of the first inclined portion 24A behind the first inclined portion 24A. If the thickness of the extending plate portion 24 at the position where the corner portion 24E terminates on the side opposite to the standing piece portion 26 is t, in this embodiment, this thickness t is set to be about 1 mm to 5 mm. Note that the thickness t may be equal to the average thickness AT of the substrate portion 22.

[0029] Further, at a position in the first inclined portion 24A, for example, near the second inclined portion 24B, a screw 30 may be provided as an example of a fixing means for fixing the base member 16 to the upper surface 14A of the step 12 (FIG. 4). At a position in the first inclined portion 24A near the second inclined portion 24B, for example, a groove 24C along the longitudinal direction of the base member 16 may be formed. By using this groove 24C, a hole 18 into which the screw 30 is inserted can be drilled at an accurate position (FIG. 4). The hole 18 may be drilled during the manufacture of the step edge member 10, or may be drilled when the step edge member 10 is attached to the step 12. When using the screw 30, a pilot hole is drilled in the upper surface 14A of the constructed step 12, and the screw 30 is tightened into the pilot hole. Note that a chemical anchor may be inserted into the pilot hole and the screw 30 may be tightened into the chemical anchor.

[0030] On the bottom surface of the extended plate portion 24, for example, a groove 24D along the longitudinal direction of the base member 16 may be formed in order to increase the adhesive strength between the base member 16 and the step 12 by an adhesive (not shown). The step edge member 10 is fixed to the corner portion 14 by, for example, adhering the base member 16 to the upper surface 14A of the corner portion 14 with an adhesive and then tightening the base member 16 into a pilot hole with the screw 30.

[0031] (Upright piece portion) The upright piece portion 26 is a portion that extends obliquely upward from the rear end of the substrate portion 22 toward the rear side. Assuming the height from the bottom surface of the extended plate portion 24 to the apex of the upright piece portion 26 is h, in this embodiment, this height h is set to about 1.5 mm to 7.5 mm. An inclined surface 26A that slopes upward toward the rear is provided at the upper portion of the upright piece portion 26. The inclined surface 26A is inclined more greatly than the upright piece portion 26 itself with respect to the vertical direction (arrow U direction and D direction).

[0032] At the base of the standing piece portion 26, the corner portion 24E on the side of the extending plate portion 24 is formed in an arcuate cross-section. As an example, the corner portion 24E has a circular arc cross-section with a radius r. Let the thickness of the extending plate portion 24 at the position where the corner portion 24E terminates on the side opposite to the standing piece portion 26 be t, and the height from the bottom surface of the extending plate portion 24 to the apex of the standing piece portion 26 be h. Then, the radius r is larger than t / 2 and smaller than h - t. That is, t / 2 < r < h - t. In this embodiment, this radius r is set to be about 0.5 mm to 5.5 mm.

[0033] (Front drooping portion) The front drooping portion 28 extends downward from the front end of the substrate portion 22 and is a portion facing the front surface 14B of the corner portion 14 (FIG. 4). A carpet 36, which is an example of a finishing material, may be attached to the front surface 14B of the corner portion 14. In this case, after attaching the carpet 36 to the front surface 14B of the corner portion 14, the staircase edge member 10 is installed at the corner portion 14. When installing the staircase edge member 10 at the corner portion 14, the front drooping portion 28 may be separated from the front surface 14B so that the upper edge of the carpet 36 enters between the front drooping portion 28 and the front surface 14B of the corner portion 14 when attaching the carpet 36.

[0034] [Edge member] The edge member 20 is formed so as to cover at least the upper surface of the substrate portion 22, the front surface of the standing piece portion 26, and the front surface of the front drooping portion 28. In this embodiment, the edge member 20 covers the upper end edge of the standing portion 26. Also, the edge member 20 covers the lower end edge of the front drooping portion 28 and further reaches the rear surface of the front drooping portion 28 beyond the lower end edge. As the material of the edge member 20, for example, synthetic resin or rubber can be used. The width of the edge member 20 in the front-rear direction (the directions of the arrows F and R) is set to be about 5 mm to 30 mm. In this embodiment, the edge member 20 also covers the inclined surface 26A. A plurality of anti-slip grooves 20A, for example, are provided on the upper surface of the edge member 20. The grooves 20A continuously extend, for example, along the longitudinal direction of the staircase edge member 10.

[0035] On the upper surface of the extension plate portion 24 placed on the upper surface 14A of the corner portion 14 in the step 12, it is possible to lay a carpet 34 as an example of a finishing material. When laying the carpet 34, by bringing the front edge of the carpet 34 into contact with the rear edges of the edge member 20 and the standing piece portion 26, the exposure of the base member 16 can be suppressed and the appearance can be improved.

[0036] (Function) This embodiment is configured as described above, and its function will be described below. In the stair edge member 10 according to this embodiment, the substrate portion 22 and the extension plate portion 24 of the base member 16 are arranged on the upper surface 14A of the corner portion 14 of the step 12, and the front hanging portion 28 of the base member 16 faces the front surface 14B of the corner portion 14. In this state, the extension plate portion 24 is fixed to the corner portion 14 of the step 12 by fixing means such as screws 30.

[0037] Further, the edge member 20 provided on the upper surface side of the base member 16 covers at least the upper surface of the substrate portion 22, the front surface of the standing piece portion 26, and the front surface of the front hanging portion 28 in the base member 16. It is possible to lay a carpet 34 (finishing material) on the upper surface of the extension plate portion 24 placed on the upper surface 14A of the step 12, and the extension plate portion 24 can be covered by the carpet 34. As a result, while narrowing the finding width of the edge member 20 and enhancing the design property, the stair edge member can be fixed to the corner portion 14 of the step 12 by retrofitting without performing anchor embedding during stair construction.

[0038] Furthermore, the standing piece portion 26 extending obliquely upward from the rear end of the substrate portion 22 toward the rear side can suppress the lifting of the end portion of the carpet 34. Since the upper surface of the extension plate portion 24 is inclined downward so as to be thinner toward the rear, the step between the rear end of the extension plate portion and the upper surface of the step can be reduced. For this reason, it is possible to suppress the carpet 34 laid on the upper surface of the extension plate portion 24 from appearing to bulge in a step shape due to the extension plate portion 24.

[0039] Further, when a first inclined portion 24A that slopes downward from the front end portion of the extending plate portion 24 toward the rear is provided on the upper surface of the extending plate portion 24, and a second inclined portion 24B that slopes downward at an angle larger than that of the first inclined portion 24A is provided behind the first inclined portion 24A, the length of the extending plate portion 24 toward the rear can be shortened as compared with the case where the upper surface of the extending plate portion 24 is configured with a uniform inclination angle, for example, the inclination angle of the first inclined portion 24A. Thereby, the balance between the thickness and the length of the extending plate portion 24 can be achieved.

[0040] The screw 30 for fixing the base member 16 to the upper surface 14A of the step 12 is provided at a position, for example, closer to the second inclined portion 24B in the first inclined portion 24A of the extending plate portion 24. That is, the screw 30 is provided at a position away from the overhanging portion 28 and the substrate portion 22 in the base member 16. Since the screw 30 can be provided at a position away from the corner portion 14 of the step 12, breakage of the corner portion 14 due to the screw 30 can be avoided as compared with the case where the screw 30 is provided close to the corner portion 14 of the step 12, and the desired stepping strength of the step edge member 10 after installation can be ensured.

[0041] Also, when the corner portion 24E on the extending plate portion 24 side is formed in an arc shape in cross section at the base of the standing piece portion 26, the strength of the base of the standing piece portion 26 can be increased, and the edge of the base fabric of the carpet 34 can be disposed near the base of the standing piece portion 26. In particular, by appropriately setting the radius r of the corner portion 24E at the base of the standing piece portion 26 (t / 2 < r < h - t), the above-described effects can be enhanced.

[0042] Furthermore, since the edge member 20 can cover the inclined surface 26A at the upper portion of the standing piece portion 26, the design property is enhanced. When the edge member 20 and the standing piece portion 26 are adhered, the adhesion strength can be increased.

[0043] As described above, according to the present embodiment, it is possible to provide a step edge member 10 having high design property and good workability.

[0044] [Other Embodiments] As described above, an example of an embodiment of the present invention has been explained. However, the embodiments of the present invention are not limited to the above, and it goes without saying that various modifications can be made without departing from the gist of the present invention.

[0045] In the above-described embodiment, a plurality of anti-slip grooves 20A are provided on the upper surface of the edge member 20. However, the present invention is not limited to this, and the uneven shape of the upper surface of the edge member 20 can be a known shape. Further, the present invention includes those in which the groove 20A is not provided in the edge member 20. Further, although the screw 30 is cited as the fixing means, the fixing means is not limited to this, and it may be a nail, a pin, or the like.

[0046] Although the carpet 34 is cited as the finishing material, the finishing material is not limited to this, and for example, it may be a floor material such as a floor sheet or tiles.

Explanation of Reference Numerals

[0047] 10 Edge member for staircase 12 Staircase 14 Corner 14A Upper surface 14B Front surface 16 Base member 20 Edge member 22 Substrate part 24 Extended plate part 24A First inclined part 24B Second inclined part 24E Corner 26 Upright piece part 26A Inclined surface 28 Front hanging part 30 Screw (fixing means) 34 Carpet (finishing material)

Claims

1. A stair edge member having a base member fixed to a corner of a stair and an edge member provided on the upper surface side of the base member, The base member has a substrate portion disposed on the upper surface of the corner portion, an extension plate portion extending rearward from the rear end located on the opposite side of the tip of the corner portion in the substrate portion and having a thickness equal to or less than the average thickness of the substrate portion, an upright piece portion extending obliquely upward and rearward from the rear end of the substrate portion, and a front hanging portion extending downward from the front end of the substrate portion and facing the front surface of the corner portion. The edge member is formed so as to cover at least the upper surface of the substrate portion, the front surface of the upright piece portion, and the front surface of the front hanging portion. A stair edge member in which a finishing material can be laid on the upper surface of the extension plate portion placed on the upper surface of the stair.

2. The stair edge member according to claim 1, wherein at the base of the upright piece portion, the corner portion on the side of the extension plate portion is formed in an arc-shaped cross section.

3. The corner portion has a circular arc-shaped cross section with a radius r. When the thickness of the extension plate portion at the position where the corner portion terminates on the side opposite to the upright piece portion is t and the height from the bottom surface of the extension plate portion to the apex of the upright piece portion is h, The radius r is larger than t / 2 and smaller than h - t. The stair edge member according to claim 2.

4. An inclined surface that slopes upward toward the rear is provided on the upper part of the upright piece portion. The edge member covers the inclined surface. The stair edge member according to any one of claims 1 to 3.

5. The upper surface of the extension plate portion slopes downward so as to become thinner toward the rear. The stair edge member according to any one of claims 1 to 3.

6. On the upper surface of the extending plate portion, a first inclined portion that slopes downward from the front end portion of the extending plate portion toward the rear, and a second inclined portion that slopes downward at an angle larger than that of the first inclined portion are provided behind the first inclined portion. The edge member for a staircase according to claim 5.

7. On the first inclined portion, fixing means for fixing the base member to the upper surface of the staircase is provided. The edge member for a staircase according to claim 6.

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