JPS61248893A - Method of marking handrail - 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] [Industrial Application Field] The present invention provides a method for marking the surface of a handrail used for escalators and travators with letters, numbers, codes, pictures, or a combination of these. This relates to a method of marking.

[Conventional technology]

FIG. 4 is a perspective view of a conventional handrail shown in, for example, Utility Model Application No. 56-43873 and Utility Model Application No. 48-101387. In the figure, (1) is the handrail, and (2) is this handrail. Decorative rubber that forms the handrail.

(3) is a mark provided on the surface of this decorative rubber, with diamond-shaped or circular markings. Also, Jikoko 47
-24130 has marks (3) such as letters, numbers, and symbols on its surface.

The reason for marking the decorative rubber of handrails is that if a single color rubber is used for the decorative rubber of handrails, it may give the illusion that the surface is stationary during operation, so users should be careful. This is to raise awareness and improve safety. In the case of text, etc., the utility value of such marks is taken one step further by marking decorative rubber with information that is useful to users, such as information displays.

The conventional marking method for providing the mark (3) on the handrail (1) was to simply place the mark material on unvulcanized rubber and simultaneously form the mark using a press. .

[Problem that the invention seeks to solve]

However, with such conventional marking methods,
Since it is extremely difficult to mark a predetermined position on the decorative rubber (2) in a conspicuous size and without disturbing the mark (3) without deforming it, a simple mark is only applied on very rare occasions. However, there was a problem that it was almost never put to practical use.

The purpose of this invention is to solve the above-mentioned problems, to provide a handrail marking method that can be displayed in a predetermined position without deforming the mark, can cope with the diversification of marks, and is useful. .

[Means for solving problems]

The handrail marking method of the present invention includes a step of carving a mark groove on the surface of the decorative rubber of a handrail which is integrally vulcanized with a decorative rubber, a reinforcing cloth layer, and a tensile material, and a step of filling the mark groove with a marking material. This marking method also includes the step of integrating the filled marking material with the handrail.

[For production]

In the marking method for the handrail configured as described above, first, a mark groove is carved on the surface of the decorative rubber of the handrail, which is made by integrally vulcanizing the decorative rubber, the reinforcing cloth layer, and the tensile material, and the marking is performed in this mark groove. Fill the marking material and integrate the filled marking material with the handrail. As a result, the marking material is integrated into the mark groove, and a desired mark is displayed on the surface of the handrail.

Therefore, even letters, numbers, codes, pictures, or complex marks made by combining these can be displayed without destroying the outline.

〔Example〕

An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 is a perspective view of a handrail with mark grooves formed therein according to an embodiment of the present invention, FIG. 2 is a perspective view showing a marking material, and FIG. 3 is a perspective view of a handrail with marks. The same symbols as in Figure 4 indicate the same or corresponding parts.1
In the figure, the handrail (1) has a decorative rubber (2),
By laminating a reinforcing cloth (not shown) consisting of 3 to 5 layers of cloth and a tensile body (not shown) consisting of a steel cord or glass fiber cord, and heating and pressurizing them together into a C-shaped cross section. Vulcanized and molded. This handrail (1)
The decorative rubber (2) integrated on the surface is generally a monochromatic colored rubber based on synthetic rubber, and in this example, C5M
It is molded using a red synthetic rubber compound made by adding red organic pigment, reinforcing agent, vulcanizing agent, etc. to (chlorosulfonated polyethylene).

The thickness after vulcanization is 4 to 5 mm.

(4) is a mark groove, which is positioned on the surface of the decorative rubber (2) of the handrail (1) so as to make the desired mark (5), and then from the surface of the decorative rubber (2) to the mark (5). )
The decorative rubber (2) is removed to form a mark groove (4) having a uniform depth of 0.5±0.1 mm. Although the mechanical method of forming the mark groove (4) is not limited, an engraving machine (or engraving machine) can be used. This machine makes a mark original plate in advance, and by learning this,
If you use this method, which transmits the information to the cutting tool using the preset reduction ratio and carves a groove in the predetermined position of the object according to the original, not only the mark groove (4) shown in Figure 1 but also letters, Grooves corresponding to various marks such as numbers, codes, pictures, or a combination of these can be easily and accurately formed.

(6) is a marking material having a shape and size corresponding to the mark groove (4) above, and is of the same quality as the decorative rubber (2), and in this example, it is colored white with titanium oxide instead of a red organic pigment. It was punched out using a punching die in the same shape as the mark groove (4) from an unvulcanized rubber sheet sheeted to a thickness of 0.5 ± 0.2 mm, with a width of 25 mm and a height of 22 mm. .

According to experimental results, the thickness of the mark (5) depends on the handling efficiency of the marking material (6), the lifespan of the mark (5) (mark (5)
) deviation due to abrasion, detachment due to intentional mischief, etc.) and the thickness of the mark (5) relative to the thickness of the decorative rubber (2), etc., it is necessary to have at least 0.2 mm or more. If the thickness exceeds 2 mm, there is a risk of abnormal adhesion to the reinforcing fabric (III not shown) that is in close contact with the decorative rubber (2), or the rigidity may deteriorate when the handrail (1) is bent. Because balance tends to occur, 0.2 mm to 2
Millimeter is preferred.

After the above procedure, the inside and surroundings of the mark groove (4) and the marking material (6) are cleaned and degreased with a solvent such as Drol, and dried with a dryer or the like. Thereafter, as shown in Fig. 3, the marking material (6) is fitted into the mark groove (4), and the handrail (1) is inserted into a vulcanization mold that can be heated and pressurized in its original shape. 150±2℃, pressure 10
By press vulcanizing at kg/li for about 15 minutes, a handrail (1) with predetermined marks (5) can be obtained.

Materials for the marking material (6) include UR (polyurethane), PB (polybutadiene rubber), its modified product (hydrogenated polybutadiene rubber), Si (silicon rubber), and flexible epoxy resin. It is possible to use curable liquid elastomers.

For example, titanium oxide is added to Coronate 4080 (Nippon Polyurethane Co., Ltd. II, Commercial S) as a liquid urethane rubber to make it white, and Curemin?IT (
Ihara Chemical Co., Ltd., commercial S> was added and injected into the mark groove (4) formed on the handrail (1) in the liquid stage, and heated in the same mold as above at a temperature of 100±2℃ and a pressure of 10kg.
/d″t′ by press curing for 15 minutes.

A similar handrail (1) can be obtained.

In addition, the marking material (6) may be made of elastomers such as polyurethane elastomer, styrene-butadiene block polymer, polyester elastomer, ethylene-vinyl acetate copolymer elastomer, nitrile-butadiene rubber, and polyamide resin (nylon) or polyamide-based hot It is also possible to use thermoplastic elastomers such as melt materials, for example as thermoplastic elastomers.

Diamid film (manufactured by Daicel Chemical Industries, Ltd., trademark, 0.6t, which is a polyamide resin-based thermal adhesive film)
A marking material (6) is punched out from the melting point (95 to 120°C) with a die, inserted into the mark groove (4), and heated at a temperature of 120±2°C and a pressure of 10°C using the same mold as above.
kg/d for 3 minutes and cooled to 70° C., and then taken out of the mold to obtain a handrail (1) with marks (5).

In addition, the pattern of mark (5) or the end of the line may be rounded,
By making the shape of the mark groove (4) into an inverted wedge shape in the depth direction and making the elongation rate of the marking material (6) almost the same as that of the decorative rubber (2), the mark (5) can be improved. Can improve withdrawal prevention.

〔Effect of the invention〕

As described above, according to the marking method of the present invention, mark grooves are mechanically carved into the surface of the decorative rubber on the handrail, and the marking material is inserted and integrated, without disturbing the outline of complex patterns and lines. It can be displayed clearly, the marking material is pressed into the mark groove without any gaps, and sufficient adhesion can be obtained.

[Brief explanation of drawings]

FIG. 1 is a perspective view of a handrail in which a mark groove is formed according to an embodiment of the present invention, and FIG. 2 is a perspective view showing a marking material.
FIG. 3 is a perspective view of a handrail with marks, and FIG. 4 is a perspective view of a conventional handrail with marks. In each figure, the same reference numerals indicate the same or corresponding parts, (1)
is handrail, (2) is decorative rubber, (3), (5
) is a mark, (4) is a mark groove, and (6) is a marking material.

Claims (4)

[Claims] (1) The process of carving a mark groove on the surface of the decorative rubber of a handrail made by integrally vulcanizing the decorative rubber, reinforcing fabric layer, and tensile material, the process of filling the mark groove with marking material, and the process of hand-filling the filled marking material. A handrail marking method characterized by comprising a step of integrating with the rail. (2) The method for marking a handrail according to claim 1, wherein the marking material is a thermosetting solid polymer elastomer having a different color from the decorative rubber of the handrail. (3) The method for marking a handrail according to claim 1, wherein the marking material is a thermosetting liquid polymer elastomer having a different color from the decorative rubber of the handrail. (4) The method for marking a handrail according to claim 1, wherein the marking material is a thermoplastic polymer elastomer having a different color from the decorative rubber of the handrail.