JPH08252852A - Manufacture of non-slip member for stairs - Google Patents

Abstract

PURPOSE: To prevent slippage in the front and back direction and in the left and right direction from occurring by performing extrusion molding of a basic body and forming recessed parts separating the longitudinal direction on a part which is to be the upper face of the basic body connecting with the stepping face of the stair. CONSTITUTION: A non-slip member 11 consists of a base part 12 and a skin part 13 forming an approximately L-shaped crosssection and a plurality of lines of projected parts 14 are formed in such an embodiemnt that they are arranged in the left and right direction on the upper face of the skin part 13 and the arrangements in the front and back direction are shifted each other in the left and right direction. These projected parts 14 are formed by pressing an embossing roll 3 on the outer peripheral face of which grooves corresponding to the projected parts 14 are arranged onto the skin part of an extruded material being uncured just after extruded from an extrusion molding machine 1. A projected stripe 18 with a rectangular crosssection is formed on the underside of this non-slip member 11 so as to bond it to the bottom face of groove 17 provided in advance on the front end edge part of the step face 16 of the stair with a double-coated pressure sensitive tape. A resistance against movement in the left and right direction is provided thereby by these recessed parts separating this longitudinal direction.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a non-slip member for stairs formed by extrusion molding.

[0002]

2. Description of the Related Art Non-slip members made of synthetic resin, which are attached to the front edge of the tread of stairs, are already on the market. This anti-slip member is very effective in improving the visibility of the front edge of the tread and preventing slipping by making it less slippery. You can expect the effect of mitigating the impact on the body when doing.

By the way, the non-slip member basically has a constant cross-sectional shape and is usually sold in the form of a long member, and it is suitable to be formed by extrusion molding.

[0004]

However, in extrusion molding, since the cross-sectional shape in the longitudinal direction is constant,
Only non-slip grooves (projections) extending in the left-right direction can be formed. That is, it is possible to manufacture a product that can prevent slippage in the front-rear direction, but it is not possible to manufacture a product that can prevent slippage in the left-right direction.

The present invention has been devised in order to eliminate such disadvantages of the prior art, and its main purpose is to:
An object of the present invention is to provide a method for manufacturing a non-slip member for stairs having an anti-slip effect in the front-rear direction and the left-right direction.

[0006]

According to the present invention, there is provided a step of extruding a basic body to form a long anti-slip member attached to a front end edge of a tread surface of a staircase.
It is achieved by a method including a step of forming a concave portion that divides the longitudinal direction in at least a portion that is an upper surface continuous with the tread surface of the stairs of the basic body. In particular,
Before the sizing step, a roller having a convex portion on the surface is pressed against the upper surface of the basic body to form a concave portion, or two members, a base portion fixed to a staircase and a non-slip surface portion, are individually extruded. A manufacturing method including a step of molding and a step of welding these two members,
The step of welding these two members may be performed after the cooling step.

[0007]

According to this structure, since the concave portion for dividing the longitudinal direction is easily formed on the upper surface by pressing the roller having the convex portion on the surface, the concave portion resists the lateral movement. Can be given. Further, if the portion where the anti-slip concave portion is formed is formed separately from the base portion fixed to the stairs, the degree of freedom of the pattern of the anti-slip surface is increased and the two members are welded after cooling. If so, there is no fear that the shape of the non-slip surface will collapse during the welding process.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The structure of the present invention will be described in detail below with reference to specific embodiments shown in the accompanying drawings.

FIG. 1 shows an example of a non-slip member manufacturing facility to which the present invention is applied. This equipment is capable of integrally extruding a base made of a relatively hard synthetic resin material and a skin portion made of a relatively soft synthetic resin material having a high wear resistance and forming a non-slip pattern. A so-called two-color extrusion molding machine 1, an embossing roller 3 for forming unevenness of a non-slip pattern on the skin portion of the extruded material 2 immediately after extrusion molding, and a sizing 4 for adjusting the cross-sectional shape of the extruded material 2. A cooling water tank 5 for cooling the extruded material 2, a take-off roller 6 for pulling out the extruded material 2 with a constant tension, and a cut for aligning the extruded long extruded material 2 into a fixed length as a product. The table 7 is arranged in series in this order. The cutting table 7 is provided with a cutting machine 8 and a limiter 9 for adjusting the dimensions.

FIG. 2 shows an example of an anti-slip member manufactured by this equipment. As described above, the anti-slip member 11 is composed of the base portion 12 and the skin portion 13, has a substantially L-shaped cross section, is aligned in the left-right direction on the upper surface of the skin portion 13, and is aligned in the front-rear direction with respect to each other. Plural rows of elliptical convex portions 14 are formed in a staggered manner. The convex portion 14 has an embossing roller 3 formed by arranging depressions 15 corresponding to the convex portion 14 on the outer peripheral surface as shown in FIG. 3, immediately after being extruded from the extrusion molding machine 1 and before curing. It is formed by pressing against the skin of the extruded material. Needless to say, the shape and array pattern of the convex portions are not limited to those in this embodiment, and may be appropriately determined in consideration of the anti-slip effect and the design.

The anti-slip member 11 is provided on the tread 16 of the stairs.
A ridge 18 having a rectangular cross section is formed on the lower surface of the groove 17 so that it can be adhered to the bottom surface of the groove 17 previously recessed in the front end edge portion thereof with a double-sided adhesive tape or the like.

FIG. 4 shows a second embodiment of the non-slip member formed by the two-color extrusion molding machine. This anti-slip member 21 also has a base portion 2 as in the first embodiment.
2 and the skin portion 23, and on the upper surface of the skin portion 23, two grooves 24 that are spaced apart in the front-rear direction and extend in the left-right direction, and the two left-right grooves 24 are equally spaced. A front-rear groove 25 that is recessed is formed. A corrugated siping 26 is formed on each of the portions defined by the front and rear and left and right grooves 24 and 25 by pressing a press blade or a roller blade to cut the surface. Here, the lateral groove 24 is continuously formed by extrusion molding,
The longitudinal groove 25 is a pre-cured extrudate immediately after being extruded from the extrusion molding machine 1 of the embossing roller 3 provided with the axial convex portions 27 at positions where the circumference is equally divided as shown in FIG. It is formed by pressing against the skin portion 23 of the material.

By making the directions of the sipings 26 adjacent to each other, it is possible to further enhance the anti-slip effect in both the front-rear and left-right directions.

FIG. 6 shows another construction of the anti-slip member manufacturing equipment. This equipment comprises a first extrusion molding machine 32 for forming a top surface member 31 made of a relatively soft synthetic resin material on which an anti-slip pattern is formed, and a base member 33 made of a relatively hard synthetic resin material. And a second extrusion molding machine 34.

On the downstream side of the first extrusion molding machine 32,
Embossing roller 35 for forming irregularities on the top surface member 31
And a cooling roller 36 for cooling the top surface member 31,
The folding roller 37 and the folding roller 37 are arranged in series in this order.
Of the extrusion molding machine 3 on the downstream side of the extrusion molding machine 34 of
A sizing 38 for adjusting the cross-sectional shape of the base member 33 extruded from 4, a cooling water tank 39 for cooling the base member 33, and a blower 40 for removing water from the base member 33 are connected in this order in series. It is arranged. The pressure contact roller 4 for pressing the top surface member 31 and the base member 33 onto the downstream side of the folding roller 37 and the blower 40.
1, a take-off roller 43 for pulling out the pressure-bonded extruded material 42 with a constant tension, and a cutting table 44 for cutting the extruded long material into a fixed length as a product are arranged in series in this order. . In the vicinity of the pressure roller 41, a heater 45 is provided for heating the top surface member 31 and the base member 33 individually to facilitate adhesion, and the cutting table 44 has a size similar to that of the cutting machine 46. A limiter 47 for alignment is provided.

An example of the anti-slip member formed by the above equipment is shown in FIG. The non-slip member 51 is a base member 33.
Has an L-shaped cross section, and a retaining protrusion 53 that fits into a groove 52 that is previously recessed is formed on the lower surface of the front end edge of the tread surface 56 of the staircase. And on the surface of the top surface member 31,
The elliptical convex portions 54 are formed so as to be aligned in the front-rear direction and the left-right direction. It should be noted that the soft lip 5 is provided on the rear end edge connected to the tread surface of the base member 33 and the lower end edge connected to the lift-up.
5 is integrally molded by two-color molding. This lip 55
It is effective to increase the visibility at night if it is made of a luminous material.

The convex portion 54 of the top surface member 31 has a recess similar to that shown in FIG.
5 is formed by pressing the top surface member 31 before curing immediately after being extruded from the extrusion molding machine 32, or a plurality of ridges are continuously formed by extrusion molding. By pressing the same embossing roller as shown, the ridges may be recessed at regular intervals and divided in the longitudinal direction. It is also possible to form a convex portion having a shape as shown in FIG. 2 by appropriately determining the shape of the convex portion of the embossing roller 3.

It is needless to say that the anti-slip pattern, the means for connecting to the stairs, and the lips provided at the rear end edge and the lower end edge can be implemented by mutually combining the modes shown in the above embodiments.

[0019]

As described above, in extrusion molding in which the cross-sectional shape in the longitudinal direction is constant, only non-slip grooves (protrusions) extending in the left-right direction can be formed. The anti-slip member can prevent slippage in the front-rear direction but cannot prevent slippage in the left-right direction. According to the present invention, it is possible to easily form a concave portion that divides the longitudinal direction, so that it becomes possible to impart resistance to lateral movement by this concave portion, and not only the anti-slip effect in the front-rear direction is provided. Since it is possible to prevent slipping in the left-right direction as well, it is possible to exert a great effect on enhancing the usability of this kind of stair-step anti-slip member.

[Brief description of drawings]

FIG. 1 is a schematic configuration diagram showing an example of an anti-slip member manufacturing facility to which the present invention is applied.

FIG. 2 is a perspective view partially showing a first embodiment of the anti-slip member manufactured according to the present invention.

FIG. 3 is a schematic perspective view showing an example of a roller for forming a non-slip pattern.

FIG. 4 is a perspective view partially showing a second embodiment of the anti-slip member manufactured according to the present invention.

FIG. 5 is a schematic perspective view showing another embodiment of a roller for forming an anti-slip pattern.

FIG. 6 is a schematic configuration diagram showing another embodiment of the anti-slip member manufacturing equipment to which the present invention is applied.

FIG. 7 is a perspective view partially showing a third embodiment of the anti-slip member manufactured according to the present invention.

[Explanation of symbols]

 1 2 Color Extrusion Machine 2 Extruded Material 3 Embossing Roller 4 Sizing 5 Cooling Water Tank 6 Take-up Roller 7 Cutting Table 8 Cutting Machine 9 Limiter 11 Anti-slip Member 12 Base 13 Skin Part 14 Convex 15 Dimple 16 Tread 17 Groove 18 Ridge 21 non-slip member 22 base 23 skin part 24 left-right groove 25 front-rear groove 26 siping 27 axial ridge 31 top surface member 32 first extrusion machine 33 base member 34 second extrusion machine 35 embossing roller 36 cooling roller 37 Folding Roller 38 Sizing 39 Cooling Water Tank 40 Blower 41 Pressing Roller 42 Extruding Material 43 Taking-up Roller 44 Cutting Stand 45 Heater 46 Cutting Machine 47 Limiter 51 Anti-Slip Member 52 Groove 53 Drop-out Protrusion 54 Convex 55 Lip 56 Tread Surface

Claims (4)

[Claims] 1. A method of manufacturing a long anti-slip member attached to a front end edge of a tread of a stair, comprising a step of extruding a basic body and an upper surface of the basic body which is continuous with at least the tread of the stair. And a step of forming a concave portion that divides the longitudinal direction in a portion thereof. 2. The stairway according to claim 1, wherein the concave portion is formed by pressing a roller having a convex portion on a surface thereof against the upper surface of the basic body before the sizing step. Manufacturing method of non-slip member. 3. The method according to claim 1, further comprising a step of separately extruding two members, a base portion fixed to the stairs and a non-slip surface portion, and a step of welding these two members. The method for manufacturing a non-slip member for stairs according to item 1. 4. The method for manufacturing a non-slip member for stairs according to claim 3, wherein the step of welding the two members is performed after the cooling step.