JPS5838579B2 - Elastic filling strip for anti-slip on stairs - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a non-slip elastic filling strip that is attached to concrete stairs.

A non-slip pad is attached to the tip of the top surface of each staircase to prevent slipping and falling when going up and down.

To prevent slipping, there are grooves in the metal base fittings.
Elastic filling strips made of rubber or synthetic resin with the same effect are
Those that are fitted so as to protrude from the top surface are often used.

When fixing the above-mentioned anti-slip devices to concrete stairs, the use of anchors creates a problem in that the structure is complicated and construction is time-consuming.
As shown in Japanese Patent No. 131, it is preferable to use concrete screws.

In other words, if concrete screws are used, all you have to do is tighten the screws on site, which eliminates work such as connecting the anchor and the cleat and embedding the anchor in the staircase, making it easy, efficient, and economical to install the cleat. It has the advantage that it can be done.

By the way, when attaching an elastic filling strip to a base metal fitting to prevent slipping, it is necessary to create sufficient strength to prevent slippage.For this purpose, the groove provided on the base metal fitting is formed into a wide dovetail groove at the bottom, and the elastic filling strip is attached to the base metal fitting to prevent slippage. It is suitable to adopt a structure in which the strip is formed in a cross-sectional shape that elastically fits into the dovetail groove, and the elastic filling strip is attached by being press-fitted into the groove against the elasticity.

However, since the work of press-fitting the elastic filling strip into the groove must be done against the elasticity of the filling strip,
It cannot be easily done by hand and is not possible in the field to fix the anti-slip to the stairs, so the elastic filler strips have to be heated to make them flexible, which can only be done during factory assembly. It is impossible.

In addition, when fixing the anti-slip concrete screw, it is preferable from the viewpoint of aesthetics and safety that the concrete screw is screwed into the groove so that its head is covered by the elastic filler strip.

However, since elastic filler strips cannot be installed on-site in dovetail grooves, it becomes impossible to screw concrete screws into positions that can be covered by the elastic filler strips, which impairs the aesthetics and safety described above.

This invention was made in view of the above-mentioned points.The base metal fittings can be fixed using concrete screws, and the concrete screws can be screwed in a position where they can be covered with filler, resulting in a beautiful and safe finish. The purpose of this invention is to provide an elastic filler strip for preventing slipping of stairs, which can be constructed economically.

Embodiments of the present invention will be described below with reference to the accompanying drawings.

1 and 2 show a first example of the present invention. In the figures, a non-slip member 1 includes a base metal fitting 2 and a longitudinal groove 3 formed on the upper surface of this base metal fitting 2. It is formed by an elastic filling strip 4 fitted into the.

Although the grooves 3 are two dovetail grooves with a wide lower part arranged in parallel, the number of grooves 3 and the cross-sectional shape thereof are not limited to those shown in the drawings.

The elastic filler strip 4 is made of an elastic material with an anti-slip effect, such as rubber or a synthetic resin with the same effect, and is formed in a cross-sectional shape that elastically fits into the groove 3 and provides sufficient strength to prevent it from slipping out. ing.

When the elastic filling strip 4 is fitted into the groove 3, the upper surface projects to an appropriate height on the surface of the base metal fitting 2, and the upper surface is provided with a rough surface 5 for non-slip, and the lower surface is provided with: An arcuate groove 6 is provided along the longitudinal direction to facilitate fitting into the groove 3.

Since this elastic filling strip 4 cannot be inserted into the groove 3 unless it is heated and made flexible, it is fitted into the groove at the factory, and the base metal fitting 2 and the elastic filling strip 4 are combined.

At the required position of the elastic filling strip 4, that is, when the elastic filling strip 4 is attached to the base metal fitting 2, insert the insertion portion 8 of the concrete screw T into the part corresponding to the position where you want to fix the base metal fitting 2 to the stairs A with the concrete screw 7. is provided.

In the illustrated case, the insertion portion 8 is formed by a vertical hole penetrating vertically.

After construction, the insertion portion 8 is closed with a plug 9 made of the same material as the elastic filling strip 4 or various fillers, and when the plug 9 is used, an adhesive is used in combination.

Incidentally, a countersink hole 10 into which the concrete screw 7 is inserted is provided in the base metal fitting 2 at a position facing the insertion portion 8 by processing at a factory or on-site.

Next, a second example of the insertion portion 8 provided in the elastic filling strip 4 will be described based on FIGS. 3 and 4.

The second example of the insertion portion 8 is formed by a notch provided from one side edge of the elastic filling strip 4, and the plug body 9 is also adapted to fit into this notch.

In addition, the third example of the insertion portion 8 provided in the elastic filling strip 4 is the fifth example.
This will be explained based on the diagram and FIG.

The insertion portion 8 of the third example is formed by a notch made from the upper surface in the width direction of the elastic filling strip 4, and the elastic filling strip 4 is continuous with the portion left below this notch, and A plug body 9 that is compatible with the above is separately prepared.

A hole 11 for providing a countersink hole 10 in the base metal fitting 2 is formed by a groove 6 at the bottom of the insertion portion 4 .

This invention has the above structure, and how to use it will be explained next.

The elastic filling strip 4 attached to the base metal fitting 2 is provided with an insertion portion 8 at a predetermined position in advance, and the base 2 and the elastic filling strip 4 form a non-slip member 1.

To attach this non-slip 1 to the stairs A, after setting the non-slip 1 on the step B provided at the tip of the top surface of the stairs A, insert the countersink hole 10 provided in the base metal fitting 2 so that it communicates with the insertion portion 8.
A pilot hole can be drilled into the concrete layer from this point.

Next, the concrete screw 7 inserted into the countersunk hole 10 from the insertion portion 8 is screwed into the prepared hole.

The concrete screw 7 advances while cutting a screw into the prepared hole, and fixes the base metal fitting 2 to the staircase A.

Thereafter, by inserting a separately prepared plug 9 into the insertion portion 8, the attachment of the anti-slip 1 is completed as shown in FIGS. 2, 4, and 6.

Note that the base metal fitting 2 to be placed on the step B of the stairs A may be fixed using a combination of adhesive and mortar.

As described above, according to the present invention, an elastic filling strip made of a material with an anti-slip effect is formed into a cross-sectional shape that fits into the wide groove at the bottom of the base metal fitting, and the elastic filling strip is opened at the upper surface. By forming a screw insertion part and closing this insertion part with a filler, it is possible to install a stair anti-slip structure in which a long elastic filler strip cannot be installed in the field into the groove of the base metal fittings on the stairs using concrete screws. In addition, the head of the concrete screw can be covered by filling the insertion portion with filler, and since the concrete screw is not exposed, a beautiful finish and safe installation can be achieved.

[BRIEF DESCRIPTION OF THE DRAWINGS] Fig. 1 is an exploded perspective view showing a first example of the elastic filling strip according to the present invention in a used state, Fig. 2 is a longitudinal cross-sectional view showing the same in a fixed state, and Fig. 3 is a FIG. 4 is an exploded perspective view showing the second example, FIG. 4 is a vertical sectional view showing the second example in a fixed state, FIG. 5 is an exploded perspective view showing the third example, and FIG. FIG. 3 is a longitudinal cross-sectional view showing the fixed state of Example No. 3; 1... Anti-slip, 2... Base metal fittings, 3
... Groove, 4 ... Elastic filling strip, 7 ... Concrete screw, ... Insertion part, 9 ... Plug body.

Claims (1)

[Claims] 1. An elastic filling strip made of a material with an anti-slip effect is formed in a cross-sectional shape that fits into a wide groove at the bottom of the base metal fitting, and a concrete screw insertion portion that opens at the top is formed in the elastic filling strip. An elastic filling strip for preventing slipping of stairs, in which the inserted part is closed with a filling material.