JPS59161552A - Anti-slip material and extrusion molding thereof - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an anti-slip lever that is used by being attached to the corner of a staircase, and an extrusion molding method thereof, and particularly relates to a tread that is fixed to a tread of a staircase and a riser surface of a staircase. a metal base having an abbreviated cross-section and a riser surface fixed to the base;
The present invention relates to an anti-slip material having an anti-slip layer made of a soft synthetic resin that is integrally formed and bonded by extrusion molding on the surface thereof, and to an extrusion molding method thereof.

Anti-slip materials installed at the corners of stairs have a slip prevention function that actively prevents slipping on the treads of stairs, and also prevents falls and scratches on stairs, especially at the corners. It is required to have a cushioning protection function in the event of an unexpected accident, and also to be able to be firmly attached to the corner of the stairs since it is frequently subjected to tread pressure when going up and down stairs.

Therefore, conventional anti-slip devices have a metal base with an oval cross-section and a step part and a riser surface. The steps are fixed to the treads of the stairs, and the risers are fixed to the risers of the stairs to protect the corners of the stairs, and the anti-slip layer actively provides anti-slip function and buffer protection. Those designed to perform the following functions are used.

As a method of manufacturing such anti-slip materials, a soft synthetic resin slipper that is pre-molded on all metal units is used.
Methods of bonding the anti-slip layer with an adhesive, and methods of bonding the anti-slip layer to the surface of the entire unit by press molding are used.

However, in such a method, all the machines
The adhesion strength between the stopper layer and the stopper layer may be insufficient, and since it is press-formed, the equipment becomes large, and the molding equipment can only produce stoppers and stoppers of specified dimensions. There are two problems with stopper materials: they have poor yields and high manufacturing costs. Ta.

A possible manufacturing method to solve these problems is an extrusion molding method in which the entire extruder is inserted into a mold, and the anti-slip layer is shaped and bonded within the mold by extrusion molding.

However, in this method, when the molten resin that forms the edge prevention layer is discharged into the adhesive area on the front side of all the units in the mold, the discharge pressure due to this molten resin is generated, and the back side of all the units is attached to the mold. It is strongly pressed against the bottom wall of the all-machine passage formed in the mold, and the bottom wall of this all-machine passage is rubbed and damaged, and the whole machine itself is deformed. The speed is not constant, and the surface of the anti-edge layer that is not shaped and adhered to the surface of all machines becomes rough, stripes appear on this surface, and the product value of the material becomes slippery. There was a problem of damage, and strong friction could also cause seizure.

Another problem when manufacturing anti-slip materials by extrusion is that metals and soft synthetic resins are generally prone to poor adhesion, and when soft vinyl chloride resin is used for the anti-slip layer, The types of adhesives that can be used are limited by the plasticizer contained in the soft resin, and it is difficult to firmly bond the entire unit and the anti-slip layer.If tread pressure is applied frequently during use, the entire unit may slip during use A stop layer! IIJ may be released.

Therefore, in order to solve this problem, it is possible to use a heat-activated adhesive that can firmly bond between the metal and the soft synthetic resin. During extrusion molding of the anti-slip shrine, it becomes necessary to heat this adhesive to its thermal activation temperature, for example, around 150 to 250°C, and all the units themselves are heated to this temperature, making them fairly easy to deform. In addition, there was a problem that it was easily damaged.

In view of this point of view, the present invention applies a heat-activated adhesive to the adhesive area on which the anti-slip layer is formed on the surface side of all the units, and inserts the entire unit into a heating device to apply the adhesive. is heated to its thermal activation temperature, and then, while maintaining the activity of the adhesive, the entire assembly is introduced into a mold.In this mold, the adhesive area on the surface side of the assembly is coated thereon. Been, live 1 te 1
Adhesion 1'f11. -E is not written in J2. While discharging the molten soft composite hI2 resin that forms the anti-stick layer,
A melted soft synthetic resin that forms a non-adhesive mold release film is placed on the back side of all the above-mentioned units approximately corresponding to the adhesive area, and an anti-slip layer is formed on the front side of all the above-mentioned units. In addition to adhesion, a non-adhesive release film is formed and adhered to the back side of all the units. We took the trouble to solve the above-mentioned problem and made it possible to manufacture a slippery material with an anti-slip layer firmly adhered to the surface of all machines using an extrusion molding method. It is something.

EMBODIMENT OF THE INVENTION Hereinafter, the anti-slip material and its extrusion molding method according to the present invention will be explained in detail based on the examples shown in the accompanying drawings.

In FIG. 1, the anti-slip material (
A) is shown, and this anti-slip material (A>) is attached to the entire platform (1) that is fixed to cover the corners from the tread to the riser of the stairs, and the surface side of this entire platform (1). Non-adhesive release film (3) that is attached to the back side of the entire stand (1) so that it can be separated by 911. It is composed of

As shown in Figure 2, all the above-mentioned units (1) are formed by extrusion molding of aluminum, etc. or bending molding of steel, stainless steel, etc. to have an approximately I-shaped cross section, and are fixed to the treads of the stairs. It has a step part (4) and a riser surface (5) that is fixed to the riser surface of all steps, and the back side of the step part (4) has a plurality of fine irregularities extending along its longitudinal direction. Article (
6) is formed.

Further, the above-mentioned anti-slip layer (2) is made of hinino chloride [resin,
Soft synthetic resin such as urethane resin is used, and all of the above units (
It is fixed to the surface of the tread portion (4) of 1), leaving a thin mounting piece (7) on the rear end side, and the top surface thereof has an uneven groove ( 8) is formed. The mold release 11I (3) is made of a soft synthetic resin that is non-adhesive to metals such as PolyL:C-Dylene, and the mold release 11I (3) is made of a soft synthetic resin that is non-adhesive to metals such as polyethylene. Stop layer (2)
qIJ is attached so as to be releasable in approximately corresponding relation to .

When installing the anti-skid 4 and 8) on the claw side, first apply the (;1
Peel off the attached release film (3), and then remove this tread portion (4).
Adhere the back side to the stair tread and the gap with adhesive.

In this case, it is also possible to apply adhesive tape to the back of all the units (1) in advance, and then peel off the release paper before installation and fix it.

Next, in Fig. 3, the commercial material of this example (
An example of a manufacturing process for manufacturing A) is shown.

The entire base (I) cut to an appropriate length is sent to an adhesive applicator (not shown), where an adhesive area is formed on the upper surface of the tread portion (4) to which the anti-slip layer (2) is adhered. (indicated by d in FIG. 2) is coated with a heat-activated adhesive;
Further, the solvent contained in this adhesive is removed and the adhesive is dried. All of the above-mentioned platforms are formed to a fixed length, usually 4 to 13 m, so that there is no inconvenience or damage to their handling, and the tread section (4)-h side of the Glue area ((
The heat-activated adhesive applied to 1) is applied to this adhesive area (d
The material is selected depending on the type of synthetic resin forming the anti-slip layer (2), such as acrylic,
There are rubber-based ones.

All the units (1) coated with adhesive in this manner are inserted into the alternating magnetic field of the high frequency induction heating device a0 by the feed roller (9).

In this embodiment, the high frequency induction heating device (10) employed as a heating means for activating the heat-activated adhesive applied to all the units (1) is as shown in FIG. All units (1) are equipped with this high frequency induction heating device (10
) is formed with a guide (15) that guides and regulates the position of all the units (1) within this alternating magnetic field so that the entire unit (1) always passes accurately at a predetermined position within the alternating magnetic field. The table (1) is heated evenly.

All units (1) heated uniformly and rapidly by this high-frequency induction heating device (10) activate the adhesive applied by self-heating, and activate the adhesive by preheating the stored heat. ♀1 [While being held, it is inserted into the mold (12) of the extruder (11).

As shown in FIGS. 5 and 6, the mold (12) has an all-machine passageway (16) through which all the machines (1) pass, and is formed above this all-machine passageway (16). Molten resin molding channel (17) for shaping the anti-slip layer (2), and melt resin forming channel (17) for shaping the non-adhesive release film (3) formed below the entire platform passage (16). A molding groove (18) of resin is formed, and the adhesive applied to the adhesive area (d) is heated and activated in the entire passage (16) of the mold (12). All units (1) holding ♀1F of 11 enter, and the molten resin in the molding groove (17) is discharged in the bonding area ([j), and the back side of the bonding area (d) is Molded groove (18)
The molten resin has come out, and this entire unit (1) is
The molten resin that joins the front and back surfaces of 4) passes through the mold (12) while being held in a limp-like manner, and slides onto the adhesive area <d) on the surface side of the cover section (4) in the entire stand. 1st layer (
2) is firmly adhered with an activated adhesive and formed into a single piece, and a non-adhesive mold release film (3) is attached to the tread portion (4) of the entire platform (1) on the back side. The material is shaped into a material with a diameter of 11J and placed at 111, and is extruded from the mold (12) as an IL material (A).

h (shaped 4-
＼Ichime 4i (Δ) is constantly cooled down to quality by the cooling device (II). The machines (Δ) cooled by the cooling device (F) are pulled by the take-up roller (14). Because it is formed on time, high frequency induction heating equipment (10
) When the feed roller (9) installed at ii:r is no longer able to feed the feed roller, the 11-Mei 4 (8) is pulled out in place of this feed roller (9). .

The stopper material (8) pulled out in this way is not shaped on the top surface of the step part (4) of the entire base (1).
The market layer (2) is formed by extrusion molding and is continuous, so it is cut to fit the dimensions of the entire machine (1') to become a product.

In the above embodiment, all the units (5) shown in FIG.
1) A thin-walled mounting piece (
The anti-slip layer (2) is formed and adhered leaving the anti-slip layer (2), and on the back side of the tread portion (4) there is a removable Il! which can be separated by 8!11 approximately corresponding to the anti-slip layer (2). (3) is attached, but the area where these anti-slip layer (2) and release film (3) are formed is not limited to this, for example,
As shown in the figure, it may extend over the entire front and back surfaces of the footstep (4), or as shown in FIG. .

Furthermore, in the above embodiment, as shown in FIG. 5, the anti-slip II? Molten resin for lt2'> and non-adhesive mold release 11! At the position where the molten resin for (3) matches all the units (1), all the units (1) are not in the same position in the direction of movement, and each of the molten resin forming the sagging layer (2) is The discharge pressures act in opposite directions at the same position, thereby deforming the entire unit (1) heated to the heat activation temperature of the heat-activated adhesive, or
It is designed to prevent it from being pressed against the bottom wall of the all-machine passageway (1G) and getting burnt or damaged.

However, regarding the position where each of these molten resins coincides with the front and back surfaces of the entire stand (1), consider the resin pressure, discharge pressure, viscosity, etc. of each molten resin, and separate them as appropriate. .

As mentioned above, the anti-slip material of the present invention has an anti-slip layer integrally formed on the front and back sides of all the tables, and an anti-slip layer on the back side. A correspondingly removable, non-adhesive release film (one piece is provided, so stack multiple anti-slip materials together and pack them in one piece, fll 1
! ＋ #ru1ifi is made of soft synthetic resin, so the anti-slip layer, which is easily scratched, does not come into direct contact with the back side of all units, so there is no risk of damage to the bottom 11th layer during shipping. Never.

According to the extrusion molding method invented by Mr. Go, the first layer of "4. t, this trajectory IvU
: In order to use the mold adhesive, all the machines are heated to a high quality product (t), and during molding, the back side of all machines is shaped, and (a) the non-adhesive mold release process is applied. All the machines are pushed strongly against the bottom wall of the passageway of the mold, so there is no possibility that all the machines will be deformed or come out. The passing speed t〕--constantly l,〕' is such that the surface of the 11th edge layer, which is shaped and glued on the surface of the whole machine, becomes rough or a striped pattern occurs on this surface. ,
"゛Is that so?/] Yes.

[BRIEF DESCRIPTION OF THE DRAWINGS] FIG. 1 is a perspective view of an anti-slip material according to an embodiment of the present invention;
FIG. 2 is a sectional view of FIG. 1, FIG. 3 is an explanatory diagram for explaining the extrusion molding method according to the embodiment of the present invention, FIG. 4 is an explanatory diagram of a high-frequency induction heating device, and FIGS. Figure 6 is an explanatory diagram of the longitudinal section and cross section of the mold, Figures 7 and 8
The figure shows a modification of the embodiment described in 1.
This is a perspective view. (A>...su-\stopper, (1)...all units, (2
)...Zuberi 1st layer, (3)...Release film, (gradient...
...Step part, (5)...Riser part, q■...High frequency induction heating device, (11)...Extruder, (12)...Mold, (d)...Adhesion region.

Claims (1)

[Claims] (1) For all metal bases that are formed into an abbreviated cross-section with a tread that is fixed to the tread of the stairs and a riser that is fixed to the riser of the stairs, adhesive is attached to the surface side of the platform. A non-slip layer made of soft synthetic resin that is fixed and extends in the longitudinal direction is provided, and
On the back side of all the above units, there is a 8!1 [release film made of non-adhesive soft synthetic resin that is removably attached and extends in the longitudinal direction].
A non-stick material characterized by having a shape h1 which substantially corresponds to the non-stick layer. L2) Pi! The entire metal base, which has an abbreviated cross-sectional shape with a "kick" part, is entered into an extrusion-like mold. In the extrusion molding method for anti-slip materials, in which a non-slip layer made of synthetic resin is formed by extrusion molding and then bonded, thermally activated adhesive is applied to the adhesive area where the anti-slip layer is formed on the surface side of all tables. Apply mold adhesive, insert all the above units into a heating device to heat the above adhesive to its thermal activation temperature, and then place all the above units into the mold while maintaining the activation of the adhesive in step 1. Inside this mold, the molten soft synthetic resin is discharged onto the activated adhesive coating surface, which is applied to the adhesive area on the front side of all the units, to form the anti-slip layer. In addition to integrally shaping and fixing, the melted non-adhesive soft synthetic resin is discharged on the back side of all the above-mentioned units in approximately corresponding to the above-mentioned adhesive area, and a peelable release film is formed. An extrusion molding method for anti-slip materials that are shaped and adhered.