JP2006160483A - Getting-on/off board for escalator or the like, and method of manufacturing the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a getting-on/off board for an escalator or the like, produced from a clear paint metal plate having printed patterns formed by sublimation transfer. <P>SOLUTION: On a clear paint film 1b at a corresponding part to a joint 7 in a getting-on/off board, the clear paint metal plate 1 having printed patterns 5 is roll-molded or pressed. The getting-on/off board is formed in such a form that respective protrusions 6 are parted by the printed pattern 5 on joints 7. The clear paint film 1b without having the printed patterns 5 is positioned to a top surface 8 of the protrusion, but the clear paint film 1b is abraded and eliminated during use of the getting-on/off board, and the surface of the metal plate 1a is exposed. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an escalator on which a pedestrian changes, a lifting plate provided at an entrance or exit of a moving sidewalk, and a manufacturing method thereof.

  In large buildings, public facilities, amusement parks, etc., escalators and moving walkways (hereinafter referred to as “escalators”, etc.) are installed for convenient movement between lower floors / upper floors and long distances. For example, in an escalator that connects a lower floor and an upper floor, a required number of steps are attached to an endless tread chain through a support frame. The step chain is driven to circulate along the guide rail by rotationally driving the step chain with the drive wheels.

A driving unit such as an escalator, a support frame, a tread chain, and the like are arranged under the floor for the safety of the pedestrian, and steps s, handrails h, and the like arranged on the floor surface are used for walking and movement of the pedestrian. Further, in order to make the movement between the floor surface / the steps s safe and easy, lift plates b are provided at the same level as the floor surface on the entry side and the exit side of the escalator or the like. -Fig. 1
In order to prevent a slip when a pedestrian moves on an escalator or the like, a large number of protrusions as slip stoppers are formed on the lifting plate b. In many cases, coloring c indicating the entrance and exit of an escalator or the like and a sign m indicating a destination, an evacuation route or the like are attached.

Protrusions and patterns can be applied by etching the metal plate masked with a predetermined pattern (Patent Document 1) or by peeling the resin film from the convex part after applying irregularities to the laminated metal plate by pressing or the like. In this case, since a number of processes are required, the manufacturing cost of the lifting plate is increased. Incidentally, the etching method goes through a process of masking the substrate → etching → spray painting → drying → peeling the masking film. The press working method goes through the steps of film sticking to a flat metal plate → grooving press → film peeling from the concave portion → spray coating → film peeling from the convex portion.
Japanese Laid-Open Patent Publication No. 4-16492

By the way, the present inventors have developed a coated steel sheet to which a printed pattern can be imparted by a sublimation transfer method (Patent Document 2). The coated steel sheet is provided with a top coating on the surface layer that accepts a sublimation dye and is dyed well, and has an advantage that a necessary printed pattern can be easily transferred by thermocompression bonding of a transfer sheet coated with a sublimation dye. Moreover, since the workability is also good, the coated metal plate can be formed into a predetermined shape before and after transfer printing.
Japanese Patent Laid-Open No. 2001-158178

  The present invention pays attention to the good patterning property and workability of the previously proposed steel sheet for sublimation transfer, and has found that it can be suitably used as a material for a lifting plate. That is, according to the present invention, a printing pattern is applied to a coated steel sheet for sublimation transfer, and a non-slip protrusion is formed by press working or roll forming, so that the manufacturing process can be greatly improved compared to conventional etching methods and press working methods. An object of the present invention is to provide a lifting plate such as an escalator that can be simplified and has a good appearance.

The elevating plate of the present invention is made of a clear painted metal plate to which a printing pattern is given by sublimation transfer, and includes a large number of convex portions that serve as slip stoppers. A clear coating film with a printed pattern is located at the joint between adjacent convex portions. The top surface of the convex portion is covered with a clear coating film that has no printed pattern and that wears away during use of the lifting plate.
After applying a printed pattern to the clear-coated metal plate by the sublimation transfer method, the printed pattern is positioned on the joint and then the clear-coated metal plate is roll-formed or pressed to form a number of protrusions that prevent slippage. It is manufactured by.

Embodiment

  In a coated metal plate for transfer printing, a top coating film that receives a sublimation dye and is well dyed is provided on the metal plate directly or via a primer layer or a base coat layer. The top coating is, for example, polyvinyl alcohol, polyvinyl butyral, polyvinyl acetal, polyvinyl acetate, polyvinyl chloride, polyvinyl pyrrolidone, polystyrene and other vinyl resins, polymethyl (meth) acrylate, polybutyl (meth) acrylate, polyacrylamide, polyacrylonitrile. The film is formed from an acrylate resin such as polysulfone resin, silicone polyester resin, or a copolymer or mixture of these resins.

  When a transfer sheet printed with sublimation dyes with offset, silk, gravure, etc. is superimposed on the top coating on a painted metal plate and heat-pressed, the sublimation dye penetrates into the top coating and is printed from the transfer sheet onto the top coating. The pattern is transferred. Transfer printing is suitable for small-lot and multi-product production, and the electrophotographic method, electrostatic recording method, ink-jet method, thermal transfer method, etc., which do not require a plate making process, can be adopted, and the design pattern is highly flexible.

  The transfer printing method is different from screen printing in which a design pattern is expressed with ink on the coating film, and the transfer printing pattern is expressed with a sublimation dye that has penetrated in the film thickness direction of the top coating film. Therefore, there is no printing fading caused by contact with a foreign substance or rubbing, and a coating film excellent in abrasion resistance, contamination resistance, etc. can be patterned, and the physical properties of the coating film are maintained even after the pattern is applied. Moreover, unlike a laminated steel sheet bonded with a synthetic resin film, it can be formed into a target shape.

  In the present invention, in order to utilize the excellent properties of the coated steel sheet for sublimation transfer in an elevator plate such as an escalator, a clear coating 1b that receives and sublimes a sublimation dye is provided on the surface of the metal plate 1a (FIG. 2). ). As the metal plate 1a, considering the use as a lifting plate through which a large number of pedestrians pass, strong stainless steel, carbon steel, alloy steel, plated steel plate and the like are preferable. The clear coating 1b is made of various resin coatings as long as it shows adhesiveness that can withstand roll forming or pressing, although it wears and disappears from the convex parts 6, 6... Is done. Specifically, resin coatings such as polyester, silicone polyester, urethane, and acrylic having good heat resistance, transparency, and abrasion resistance are preferable.

  When the transfer sheet 3 coated with the sublimation dye 2 in a predetermined pattern is placed on the clear painted metal plate 1 and pressed and heated, the sublimation dye 2 sublimates and penetrates the clear coating 1b in the film thickness direction. The wearing layer 4 is formed. Since the dye dyeing layer 4 is formed on the clear coating 1b corresponding to the pattern of the sublimation dye 2 applied to the transfer sheet 3, the printed pattern of the sublimation dye 2 is transferred from the transfer sheet 3 to the clear painted metal plate 1. Is transcribed. In this invention, the dye dyeing layer 4 is set to the joint 7 (FIG. 3) of an elevator board, and the clear coating film 1b without a dyeing layer is set to the convex part 6,6 ... of an elevator board. For example, when producing a lifting plate having a large number of convex portions 6, 6... In the XY direction, the dyed dyeing layer 4 is located at the joint between adjacent convex portions 6, 6. A grid-like printed pattern 5 in which a plurality of linear dye-dyed layers 4 extend in the XY direction is applied to the clear-coated metal plate 1 (FIG. 3a).

After applying the printed pattern 5 of a predetermined pattern, the clear-coated metal plate 1 is made uneven by roll forming or pressing. In the case of roll forming, a shape in which a large number of protrusions extend in one direction can be formed by a normal forming roll, but a mold roll with a concavo-convex processed peripheral surface for forming into a shape having a large number of unevenness in the XY direction. Is used. On the other hand, in press working, it can be formed into any irregular shape by selecting a mold.
When the clear-coated metal plate 1 is processed to be concavo-convex by roll forming or pressing, the forming roll or press so that the printed pattern 5 is located between the adjacent convex portions 6, 6... The clear painted metal plate 1 is positioned on the mold. In the formed clear painted metal plate 1, the printed pattern 5 is arranged on the joint 7, and the clear coating film 1b without the printed pattern 5 is arranged on the top surface of the convex portions 6, 6... (FIG. 3b). The side surface 9 of the convex portions 6, 6... May be either the clear coating film 1 b with the printing pattern 5 or the clear coating film 1 b without the printing pattern 5. Therefore, the individual convex portions 6, 6... Are separated by the joint 7 with the printed pattern 5, and the surface of the metal plate 1a is observed through the clear coating film 1b at the convex portions 6, 6. It becomes a product rich in three-dimensionality.

  The clear-coated metal plate 1 with irregularities is cut to a required size and delivered to a construction site such as an escalator, and is laid as a lift plate on the entry side and the exit side of the escalator. When the escalator is used in this state, the clear coating film 1b on the top surface 8 of the convex portions 6, 6... Is gradually worn by the stepping pressure applied when the pedestrian passes over the lifting plate. Finally, the clear coating film 1b on the top surface 8 of the convex portion disappears and the metal plate 1a is exposed. On the other hand, since no stepping pressure is applied to the clear coating 1b on the joint 7 or the convex side surface 9, the clear coating 1b with the original printed pattern 5 is maintained.

  Since the metal plate 1a is observed through the clear coating film 1b of the convex top surface 8 from the beginning, the impression obtained from the convex top surface 8 hardly changes before and after the disappearance of the clear coating film 1b. Therefore, it is not necessary to previously remove the clear coating film 1b from the convex top surface 8 prior to laying the elevating plate, and the treading pressure applied during use can be used to remove the clear coating film 1b. In addition, when the clear coating film 1b is formed with a clear paint having high transparency, a subtle change in the appearance of the lifting plate before and after the disappearance of the clear coating film 1b can be suppressed.

  Since the printed pattern 5 is applied by the transfer printing method, it is not limited to a simple lattice pattern, but various patterns that harmonize with the installation location of the escalator (for example, a multicolored pattern pattern represented by the entire joint of the lifting plate, It can be a pattern incorporating the sign m (FIG. 1), or a pattern painted in two or three colors). In addition, the pattern can be easily changed, and when a sublimation transfer sheet by plateless printing is used, low-cost small lot production is possible.

A clear coating film 1b having a film thickness of 15 μm was formed by applying and baking a polyester resin paint excellent in dyeing property to a sublimation dye on a SUS304 stainless steel plate (metal plate 1a) having a plate thickness of 1.5 mm. The transfer sheet 3 was prepared by printing and applying black sublimation dye ink (sublimation dye 2) on a coated paper (sheet base material) in a lattice pattern. The pitch of the lattice pattern was set to 12 mm.
Sublimation dye 2 was made to face clear coating film 1b, transfer sheet 3 was superimposed on clear-coated metal plate 1, and transfer printing was performed by pressurizing and heating at a temperature of 190 ° C. and a pressure of 30 MPa. When the cross section of the clear-coated metal plate 1 that was transferred and printed was observed, the dye dyed layer 4 that penetrated the sublimable dye 2 in the film thickness direction of the clear coating film 1b and reached the vicinity of the surface of the metal plate 1a was formed.

The transfer-printed clear painted metal plate 1 is pressed into a concavo-convex shape with the printed pattern 5 applied as the joint 7 and the portion with the clear coating 1b without the printed pattern 5 as the convex top surface 8. Molded. The size of the convex portions 6, 6... Is 8 mm × 16 mm and the height is 0.2 mm, but the printed pattern 5 does not appear on the top surface 8 of the convex portion, and the metal plate 1a is observed through the clear coating film 1b. It was an appearance.
The produced size: 600 mm x 1284 mm lifting plate was placed on the floor, and repeated treading pressure was applied to investigate the situation until the clear coating film 1b disappeared from the convex top surface 8. As a result, the wear of the clear coating 1b starts at the number of repeated times of treading pressure equivalent to the passage of about 1,000 pedestrians, and the clear coating at the number of times of repeated treading pressure equivalent to the passage of about 40,000 pedestrians. 1b disappeared completely. However, there was almost no change in the appearance of the convex top surface 8 before and after the disappearance of the clear coating film 1b, and the complete disappearance of the clear coating film 1b could not be determined by visual observation.

  As explained above, when the clear painted metal plate 1 with the printed pattern 5 is used as the material by the sublimation transfer method, the clear painted metal plate 1 can be laid by a simple process of forming irregularities by roll forming or pressing. A simple lifting plate is produced, and the number of man-hours is greatly reduced as compared with the conventional press working method and etching method. And since the clear printed pattern 5 is maintained over a long period of time, it becomes an elevating plate with extremely high commercial value.

Schematic plan view of an escalator with a lifting plate Explanatory drawing of transfer printing method for printing pattern on clear painted metal plate Process drawing for manufacturing raised and lowered plates by processing irregularities on clear painted metal plates with printed patterns

Explanation of symbols

1: Clear painted metal plate 1a: Metal plate 1b: Clear coating 2: Sublimation dye 3: Transfer sheet 4: Dye-dyed layer 5: Print pattern 6, 6 ...: Convex 7: Joint 8: Convex Top surface 9: Convex side surface s: Step h: Handrail b: Lift plate c: Coloring m: Sign

Claims (2)

  Made of clear painted metal plate with printed pattern by sublimation transfer method, with many convex parts to prevent slipping, clear coating with printed pattern is located at the joint between adjacent convex parts, printing An elevating plate such as an escalator, wherein a clear coating film that does not have a pattern and disappears during use is located on the top surface of the convex portion.   After sublimation and transfer of the printed pattern to the clear painted metal plate of the part that hits the joint of the lifting plate with many convex parts, the printed pattern is positioned at the part that hits the joint and the clear painted metal plate is rolled or pressed. A method for manufacturing a lifting plate such as an escalator.

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