JP3446540B2 - Non-slip structure of stair treads - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure in which an anti-slip member is attached to a front portion of an upper surface of a step board of a stair to prevent slip.

[0002]

2. Description of the Related Art Conventionally, the structure shown in FIGS. 6 and 7 has been adopted to prevent slipping of a stair tread. Figure 6
In the structure shown in (1), a non-slip member 1'made of synthetic resin and having a substantially inverted L-shaped cross section is adhered along the corners between the upper surface and the front surface of the footboard 2. In FIG. 6, 4 is a riser. In the structure shown in FIG. 7, a non-slip member 1 ″ is formed by forming a mounting groove 3 ″ on the front portion of the upper surface of the tread plate 2 and making it of synthetic resin.
Is embedded in the mounting groove 3 ″ so that the upper surface of the anti-slip member 1 ″ is exposed from the upper surface of the footboard 2.

[0003]

However, in the conventional example shown in FIG. 6, since the anti-slip member 1'projects from the upper surface of the tread plate 2, there is a risk of tripping the foot as shown in FIG. 6 (b). Also, since the anti-slip member 1'is attached along the corners, the attachment strength is weak and peeling may occur when a load is applied, and there is a risk that the anti-slip member 1'will slip off. Further, in the conventional example shown in FIG. 7, since the anti-slip member 1 ″ is embedded in the mounting groove 3 ″, there is no danger of peeling, but there is a protrusion of about 1.5 mm on the surface above the anti-slip member ″. There is a problem that causes a trip of the foot.

The present invention has been made in view of the above-mentioned points, and it is an object of the present invention to provide a non-slip structure for a step plate of a stair, which can surely prevent the foot from slipping without the risk of tripping the foot.

[0005]

In order to solve the above-mentioned problems, the structure for preventing slippage of stairs according to claim 1 of the present invention comprises:
At the front part of the upper surface of the tread plate 2, there is provided a mounting groove 3 having a substantially T-shaped cross section, which comprises a lateral groove 3a spreading on both sides in the longitudinal direction and a vertical groove 3b recessed downward in the center, and a lateral piece 1a spreading on both sides. The non-slip member 1 made of an elastic material having a substantially T-shaped cross section, which is composed of the vertical piece 1b at the center and the vertical piece 1b is inserted into the vertical groove 3b and the horizontal piece 1a is inserted into the horizontal groove 3a. The leg portions provided on both sides of the horizontal piece 1a of the anti-slip member 1 by press-fitting the press-fitting portion 9 embedded in the attachment groove 3 and provided at the lower portion of the vertical piece 1b of the anti-slip member 1 into the vertical groove 3b of the attachment groove 3. 10
For contacting the bottom surface of the lateral groove 3a of the mounting groove 3 so that the anti-slip member 1 can sink downward when a load is applied to the anti-slip member 1 between the lateral piece 1a and the bottom surface of the lateral groove 3a. It is characterized in that a space S is formed, an uneven portion 5 is provided on the surface of the lateral piece 1a of the anti-slip member 1, and this surface is flush with the upper surface of the tread 2 or less.
Since the upper surface of the anti-slip member 1 is flush with the upper surface of the tread 2 or less, there is no risk of tripping the foot. Further, the sole of the foot sinks due to the elasticity of the sole, and the sole contacts the uneven portion 5 of the anti-slip member 1 to prevent the sole from slipping. When a load is further applied with the sole contacting the uneven portion 5 of the anti-slip member 1, the anti-slip member 1 further sinks due to the elasticity of the anti-slip member 1 and the space S, and the foot sole sinks. It is more slippery.

[0006]

Further slip structure treads of stairs according to claim 2 of the present invention, slippage in claim 1 Oite, while adhering the edge member 6 for makeup the side end face in the longitudinal direction of the side end surface of the tread plate 2 At the portion corresponding to the end face in the longitudinal direction of the stopper member 1, a cutout 7 is provided in the edge member 6 so that the upper edge of the edge member 6 does not reach above the lower end of the groove 5a of the uneven portion 5 of the slip stopper member 1. It is characterized by consisting of. It is possible to improve the appearance by covering the side end surface of the footboard 2 with the edge material 6 and applying makeup.
Further, by providing the notch 7 in the edge material 6 so that the upper edge of the edge material 6 does not reach above the lower end of the concave line 5a of the uneven portion 5 of the slip prevention member 1, the edge material 6 may hit the foot and be chipped. Does not happen.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION The staircase footboard 2 is an elongated rectangular plate material, as shown in FIG. 2, and is formed, for example, by adhering a decorative material such as a veneer to the surface of a base material of plywood. There is. A mounting groove 3 is formed on the front surface of the upper surface of the footboard 2 so as to extend in the longitudinal direction. As shown in FIG. 3A, this mounting groove 3 has a substantially T-shaped cross section, and has a lateral groove 3a that spreads on both sides and a vertical groove 3b that is recessed downward in the center. At the lower portions on both sides of the lateral groove 3a, there are concave grooves 8 having a substantially V-shaped cross section.
Is recessed so as to extend in the longitudinal direction. Non-slip member 1
As shown in FIG. 3 (b), is formed of a non-slip resin and has a substantially T-shaped cross section, and has a horizontal piece 1a extending to both sides and a vertical piece 1b at the center. A press-fitting portion 9 having a substantially inverted triangular shape is provided at the lower portion of the vertical piece 1b, and legs 10 are provided on both sides of the horizontal piece 1a. Further, the concave-convex portion 5 is provided on the surface of the horizontal piece 1a by providing a plurality of concave stripes 5a in the longitudinal direction. Examples of the anti-slip resin forming the anti-slip member 1 include styrene elastomer, which is an elastic body having a hardness of about 85 degrees.

As shown in FIG. 1A, the anti-slip member 1 is attached so as to be embedded in the attachment groove 3, and the vertical piece 1b of the anti-slip member 1 is inserted into the vertical groove 3b of the attachment groove 3 and attached. The anti-slip member 1 is provided in the lateral groove 3a of the groove 3.
The horizontal piece 1a is inserted. When the vertical piece 1b of the anti-slip member 1 is inserted into the vertical groove 3b of the mounting groove 3, the press-fitting portion 9 is press-fitted into the vertical groove 3b. When the anti-slip member 1 is embedded and attached, the mounting groove 3 is filled with the adhesive 12, and the adhesive 12 collects in the vertical groove 3b and the groove 8. As described above, the anti-slip member 1 is embedded in the attachment groove 3 and is attached. The anti-slip member 1 is attached so that the upper surface of the anti-slip member 1 is flush with or slightly lower than the upper surface of the footboard 2. That is, the height h of the upper surface of the anti-slip member 1 with respect to the upper surface of the footboard 2 is 0 to −.
It is about 0.5 mm. Further, as described above, the leg portions 10 on both sides of the horizontal piece 1a are brought into contact with the bottom surface of the horizontal groove 3a in a state where the anti-slip member 1 is embedded in the mounting groove 3, and a space is provided between the horizontal piece 1a and the bottom surface of the horizontal groove 3a. S is formed.

As described above, the upper surface of the anti-slip member 1 is flush with the upper surface of the footboard 2 or less, so that the user does not trip the foot. Further, even if the upper surface of the anti-slip member 1 is lower than the upper surface of the tread plate 2, when the foot 11 is placed on the upper surface of the tread plate 2, the sole of the foot sinks due to the elasticity of the sole of the foot, so that the sole of the foot is depressed. It comes into contact with the uneven portion 5 and is prevented from slipping. When a foot is further stepped on and a load is further applied, the lateral piece 1a of the anti-slip member 1 is depressed by the space S as shown in FIG. 1 (b), and the sole of the foot is depressed to prevent slipping more reliably. .

An edge material 6 such as a veneer is attached to the side end surface of the end portion of the step board 2 in the longitudinal direction as shown in FIG. 4 (a) in order to make up the side end surface. When the edge material 6 is attached in this manner, it is preferable that the longitudinal end face of the vertical groove 3b of the mounting groove 3 is closed as shown in FIG. 4 (b). When the edge material 6 is attached to the side end surface of the footboard 2, the end surface in the longitudinal direction of the anti-slip member 1 is also covered, but at least the portion corresponding to the uneven portion 5 is exposed above the upper edge of the edge material 6. So that the edge material 6 has a notch 7
Is provided. That is, as shown in FIG. 5C, the edge material 6
If the end surface of the non-slip member 1 is not covered with, the end surface of the anti-slip member 1 is exposed and the appearance is deteriorated.
If the entire edge surface of the anti-slip member 1 is covered with the edge material 6 as described above, the edge material 6 may be covered up to the position corresponding to the uneven portion 5 of the anti-slip member 1, and the edge material 6 may be chipped at the portion indicated by the symbol a. By providing the notch 7 as shown in FIGS. 5A and 5B, the appearance is not deteriorated and the edge material 6 can be prevented from being chipped. In FIG. 5A, the notch 7 is provided so that the end surface of the lateral piece 1a of the anti-slip member 1 is exposed.
(B) is a cutout 7 so that it is exposed to the lower end of the recessed strip 5a.
In both cases, the edge material 6 can be prevented from being chipped by suppressing the exposure of the end surface of the anti-slip member 1.

[0012]

The invention according to claim 1 of the present invention has a substantially T-shaped cross section consisting of a lateral groove extending on both sides in the longitudinal direction on the front part of the upper surface of the footboard and a vertical groove recessed downward in the center. A vertical groove is inserted into the vertical groove while the horizontal piece is inserted into the vertical groove by providing an anti-slip member that is provided with a mounting groove and is formed of an elastic material with a substantially T-shaped cross section consisting of a horizontal piece spreading on both sides and a vertical piece in the center. It is embedded in the mounting groove so that it will be inserted, and the press-fitting part provided at the bottom of the vertical piece of the anti-slip member is press-fitted into the vertical groove of the mounting groove, and the legs provided on both sides of the horizontal piece of the anti-slip member are installed in the mounting groove. A space is formed between the lateral piece and the bottom surface of the lateral groove so as to allow the anti-slip member to sink downward when a load is applied to the anti-slip member by contacting the bottom surface of the lateral groove. An uneven part is provided on the surface of one piece and this surface is flush with the upper surface of the tread or less. Since the upper surface of the anti-slip member does not project from the upper surface of the tread, there is no risk of tripping the foot, and the sole of the foot sinks due to the elasticity of the sole of the foot to prevent slippage of the anti-slip member. When the sole is in contact with the uneven portion and is not slippery, and when a load is further applied with the sole contacting the uneven portion of the anti-slip member, the anti-slip member has the elasticity of the anti-slip member and the space above. The sank further sinks and the sole of the foot sinks further to prevent slipping.

[0013]

The invention of claim 2 of the present invention is the invention of claim 1.
In the above, an edge material that makes up the side end face is attached to the side end face in the longitudinal direction of the footboard, and at the portion corresponding to the end face in the longitudinal direction of the anti-slip member ,
Since the notch is provided in the edge material so that the upper edge of the edge material does not reach above the lower end, it is of course possible to improve the appearance by covering the side end surface of the footboard with the edge material and applying makeup.
By providing a notch in the edge material so that the upper edge of the edge material does not reach above the lower end of the concave line of the uneven portion of the anti-slip member, the edge material does not hit the foot and chip.

[Brief description of drawings]

FIG. 1A is a cross-sectional view showing a state where a non-slip member is attached to a tread plate according to an example of an embodiment of the present invention, and FIG. 1B is a cross-sectional view showing a state where a foot is stepped on the tread plate.

FIG. 2 is a plan view showing the entire tread plate of the above,
(B) is a front view and (c) is a side view.

FIG. 3A is a side view showing a mounting groove portion of the tread plate of the same, and FIG. 3B is a side view of a non-slip member.

FIG. 4A is a partially exploded perspective view showing another example of the above embodiment, and FIG. 4B is a side view showing a mounting groove portion of the tread plate.

FIG. 5 is a side view showing a state in which a side end surface of the above step plate is covered with an edge material, and (a) and (b) are good examples,
(C) and (d) are bad examples for comparison.

FIG. 6 shows a conventional example, (a) is an enlarged sectional view of an essential part,
(B) is sectional drawing explaining the state which sways a foot.

FIG. 7 is a cross-sectional view of another conventional example.

[Explanation of symbols]

1 Anti-slip member 2 step board 3 mounting groove 5 uneven parts 6 Edge material 7 notches S space

Claims (2)

(57) [Claims] 1. A lateral piece extending on both sides is provided with a mounting groove having a substantially T-shaped cross section, which is formed on the front part of the upper surface of the tread plate, the lateral groove extending on both sides in the longitudinal direction and the vertical groove recessed downward in the center. And a non-slip member made of an elastic material having a substantially T-shaped cross section, which is composed of a central vertical piece, is embedded in the mounting groove so that the vertical piece is inserted into the vertical groove and the horizontal piece is inserted into the horizontal groove. The press-fitting part provided on the lower part of the vertical piece of the non-slip member is press-fitted into the vertical groove of the mounting groove, and the leg parts provided on both sides of the horizontal piece of the non-slip member are brought into contact with the bottom surface of the lateral groove of the mounting groove to form a horizontal piece. A space is formed between the bottom surface of the lateral groove and the anti-slip member so that the anti-slip member can sink downward when a load is applied to the anti-slip member.
An anti-slip structure for a step plate of a staircase, characterized in that an uneven portion is provided on a surface of a lateral piece of the anti-slip member and the surface is made flush with the upper surface of the step plate or less. 2. An edge material for decorating the side end face is attached to the side end face in the longitudinal direction of the tread plate, and at the portion corresponding to the end face in the longitudinal direction of the anti-slip member, from the lower end of the concave line of the uneven portion of the anti-slip member. A cutout is provided in the edge material so that the upper edge of the edge material does not reach the upper edge of the edge material.
Non-slip structure for the stair treads described.