JP2005049702A - Side signboard and method for manufacturing the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a side signboard with which assembly and disassembly are easy and recyclability is enhanced. <P>SOLUTION: When the peripheral edges of an information display board 4 are inserted to frames 5u, 5d, 5r and 5l and are pressurized/heated, a thermoplastic resin layer 4c develops thermal weldability and is joined to the frames 5u, 5d, 5r and 5l. An ordinary coating film 4b disposed on the central side of the information display board 4 is printed with a display pattern 4e. The information display board is fastened to arms 3u and 3d extended from an electric pole 1 by means of bolts 6u and 5d disposed at an upper frame 5u and a lower frame 5d. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a sleeve signboard with improved recyclability that is attached to a pole such as a utility pole or pole, and a method for manufacturing the same.

  A large number of sleeve signboards displaying predetermined information such as road guides, stores, products, etc. are attached to utility poles, poles, etc. standing from the road surface. When attaching to the utility pole, the binding bands 2u, 2d are wound around the predetermined height of the utility pole 1, and the arms 3u, 3d are projected in a horizontal lateral direction in a cantilevered state from the binding bands 2u, 2d, and the frame of the information display board 4 5u and 5d are fixed to the arms 3u and 3d with bolts and nuts 6 (FIG. 1). As the information display board 4, a coated steel plate indicating predetermined information is used, and a flat shape is maintained by reinforcing left and right edges with frames 5r and 5l.

  In the conventional sleeve signboard, frames 5u, 5d, 5r, 5l are fixed to the information display board 4 by spot welding. Therefore, it is necessary to perform spot welding at a plurality of locations, and the number of welding locations increases as the size of the sleeve signboard increases. In this case, spot welding has to be relied on manually, and there are problems in productivity and workability. Moreover, since the information display plate 4 is heated at a high temperature during spot welding, it is necessary to print predetermined information on the information display plate 4 by post-coating after spot welding, and the productivity is of course further reduced. Painting equipment is required, and printing itself becomes difficult.

Further, when replacing the sleeve signboard with a new one, the old sleeve signboard cannot be reused and is discarded. That is, since the frames 5u, 5d, 5r, and 5l are spot-welded to the information display board 4, welding marks remain on the separated information display board 4 and frames 5u, 5d, 5r, and 5l, respectively, for new sleeve signboards. Cannot be used for other materials.
Thus, the conventional sleeve signboard has room for improvement in productivity, workability, recyclability, and the like.

By the way, the present applicant has developed a coated metal plate provided with a thermoplastic resin layer having a melting point of 130 to 220 ° C. and exhibiting heat-fusibility when cooled (Patent Document 1). When the surface is heated to a predetermined temperature, the thermoplastic resin layer on the surface exhibits heat-fusibility. Therefore, when a coated metal plate cut into a predetermined size is overlapped with the same material or a different material and pressed and heated, both are joined. Therefore, welding, caulking, riveting, screwing, etc. are not required, and it can be assembled into a target shape with a simple operation, and disassembly after assembly is easy.
JP 2003-118037 A

  The present invention pays attention to the advantages of the thermoplastic resin-coated metal plate introduced in Patent Document 1, and by providing a thermoplastic resin layer on the surface of the substrate in a predetermined pattern, it is easy to join and disassemble with the frame and recycle. The aim is to provide an improved sleeve sign.

The sleeve signboard of the present invention comprises a coated steel plate having a heat-fusible resin layer formed on the peripheral surface as an information display board, and a frame heat-sealed to the information display board through the heat-fusible resin layer. The frame is fixed to the arm extending from the support column.
This sleeve signboard is prepared with a coated metal plate provided with an information display coating film and a heat-fusible resin layer in a predetermined pattern on the surface of the base material / metal plate, and the shape of the thermoplastic resin layer is located at the periphery. The information display plate is manufactured by cutting out the information display plate from the painted metal plate, sandwiching the periphery of the information display plate in the frame, and heat-sealing the periphery of the information display plate to the frame by hot pressing.

  Since the frame is attached to the information display board by heat-sealing to form a sleeve signboard, the frame can be easily attached and can be automated. Moreover, since the information display plate is not heated at the time of attachment unlike spot welding, the display pattern can be printed before the frame is attached, and the base material, the metal plate and the coating film are prevented from being altered. In dismantling, the old sleeve signboard is separated from the information pole and the frame by heating after removing it from the utility pole. The separated information display board and frame are free from defects such as welding marks and can be reused as a material for a new sleeve signboard.

  The sleeve signboard according to the present invention uses a normal coating film 4b in which predetermined information is printed on the central part of the base material / metal plate 4a, and an information display board 4 provided with a thermoplastic resin layer 4c on the periphery ( Figure 2). In FIG. 2, the normal coating film 4 b is provided on one side of the periphery and the thermoplastic resin layer 4 c is provided on the other side, but the thermoplastic resin layer 4 c may be provided on both sides of the base material / metal plate 4 a. The information display plate 4 is prepared by cutting out a coated metal plate provided with a normal coating film 4b and a thermoplastic resin layer 4c in a predetermined pattern to a required size.

Normally, the coating film 4b and the thermoplastic resin layer 4c can be provided directly on the surface of the substrate / metal plate 4a, but the corrosion resistance of the information display plate 4 is obtained by interposing a primer layer 4d containing a rust preventive pigment or the like. , Durability and adhesion of the normal coating film 4b and the thermoplastic resin layer 4c are improved. As the base material / metal plate 4a, a normal steel plate, a stainless steel plate, a plated steel plate, an aluminum plate, or the like is used. When utilizing the metallic luster of the substrate / metal plate 4a, the coating films 4b to 4d are formed from a clear paint.
The display pattern 4e is applied to both the painted metal plate before the information display plate 4 is cut out and the information display plate 4 cut out from the painted metal plate by an appropriate printing method. In any case, since the flat information display board 4 is a printing object and printing is not performed after the frames 5u, 5d, 5r, and 5l as seen in a conventional sleeve signboard, the printing work is easy. is there.

  Frames 5u, 5d, 5r, and 5l are attached to an information display board 4 of a predetermined size provided with a thermoplastic resin layer 4c at the periphery. The upper frame 5u and the lower frame 5d have a substantially T-shaped cross section, and a plurality of bolts 6u and 6d fixed to the arms 3u and 3d extending from the column (electric pole 1: FIG. 1) are arranged in the opposite direction to the information display board 4. And the narrow gaps 7u and 7d into which the upper and lower edges of the information display board 4 are inserted. The right frame 5r and the left frame 5l have a substantially conical flask-like cross section, and are provided with gaps 8r and 8l into which the right and left edges of the information display board 4 and the protruding portions of the frames 5u and 5d are inserted. The frames 5u, 5d, 5r, and 5l having such a shape are manufactured by bending a metal cut plate. In the bending process, it is preferable that the top surfaces and bottom surfaces of the frames 5u and 5d and the side surfaces of the frames 5r and 5l have the same width.

  When assembling the sleeve signboard, the upper and lower edges of the information display board 4 are inserted into the narrow gaps 7u and 7d of the upper frame 5u and the lower frame 5d, and the right and left edges are inserted into the right frame 5r and the left frame 5l. Insert into the gaps 8r and 8l. When the frames 5u, 5d, 5r, and 5l into which the peripheral edge of the information display board 4 is inserted are pressed and heated, the thermoplastic resin layer 4c is melted and a heat-fusibility is developed in the cooling process. As a result, the frames 5u, 5d, 5r, and 5l are fixed to the information display board 4 through the heat sealing layer 9 (FIG. 3).

The heating temperature is appropriately determined according to the melting point of the thermoplastic resin. However, when vinylidene fluoride is used for the thermoplastic resin, the heating temperature is set slightly higher than the melting point (160 to 200 ° C.). Since the heating temperature does not adversely affect the plating layer when the plated steel plate is used for the substrate / metal plate 4a, good corrosion resistance is maintained. Further, when the heating area is limited to the periphery of the information display board 4, the normal coating film 4b and the display pattern 4e on the center side of the information display board 4 are not deteriorated.
The bonding strength of the information display board 4 / frames 5u, 5d, 5r, and 5l can be adjusted by the area of the heat sealing layer 9. When producing a relatively large-sized sleeve signboard, the right frame 5r and the left frame 5l having a large area of the sandwiching portions 10f and 10b (FIG. 3b) are used, and the sandwiching portions 10f and 10b are in contact with the periphery of the information display board 4. Increase the area. On the other hand, the holding portions 10f and 10b (FIG. 3a) of the upper frame 5u and the lower frame 5d may have a substantially constant area regardless of the size of the sleeve signboard.

The sleeve signboard in which the frames 5u, 5d, 5r, 5l are joined to the information display board 4, the bolts 6u, 6d are inserted into the bolt holes of the arms 3u, 3d (FIG. 1) extending from the utility pole 1 as in the prior art. It is attached to the utility pole 1 by screwing nuts into bolts 6u and 6d protruding from the holes.
When the sleeve signboard is removed, the sleeve signboard is removed from the arms 3u, 3d by loosening the nut and removing the bolts 6u, 6d from the bolt holes of the arms 3u, 3d. When the peripheral edge of the removed sleeve signboard is heated, the thermoplastic resin layer 4c is melted and softened and the combined state of the information display board 4 / frames 5u, 5d, 5r, 5l is released, and the frames 5u, 5d, 5r and 5l are separated. When disassembling, the frames 5u, 5d, 5r, 5l can be easily separated by heating the information display board 4 or the frames 5u, 5d, 5r, 5l while applying stress.

  The information display board 4 and the frames 5u, 5d, 5r, 5l4 separated from each other maintain a shape and a surface property free from defects such as welding marks. Therefore, the frames 5u, 5d, 5r, and 5l can be reused as they are as the material for the next sleeve signboard. The base material / metal plate 4a can also be reused as a sleeve signboard material by removing the coating films 4b to 4c and the display pattern 4e. In addition, the sleeve signboard provided with the display pattern 4e by the lamination of the printing film can be used for the information display board 4 of the new sleeve signage by simply changing the printing film.

  As explained above, heat sealing is used to join the information display board / frame, so the production of the sleeve signboard is greatly simplified, and the information display board and frame material compared to the spot welding production. A sleeve signboard with no deterioration and excellent corrosion resistance and weather resistance can be obtained. Since a pre-coated metal plate can be used for the information display board, a sleeve signboard is provided at a low cost. In addition, since the recyclability of information display boards, frames, etc. is improved, the product can meet the needs of the times when environmental degradation is a concern as well as effective use of resources.

Schematic diagram of a sleeve signboard attached to a telephone pole An exploded perspective view of a sleeve signboard according to the present invention. Partial sectional view of the frame heat-sealed to the information display board

Explanation of symbols

1: Telephone pole 2u, 2d: Binding band 3u, 3d: Arm 4: Information display board 4a: Base material / metal plate 4b: Normal coating film 4c: Thermoplastic resin layer 4d: Primer layer 4e: Display pattern 5u, 5d, 5r , 5l: Frame 6u, 6d: Bolt 7u, 7d: Narrow gap 8r, 8l: Gap 9: Thermal fusion layer 10f, 10b: Clamping part

Claims (2)

  An arm that extends from the column with a frame that is heat-sealed to the information display board through the heat-fusible resin layer, with a coated steel plate having a heat-fusible resin layer formed on the peripheral surface. Sleeve signboard, characterized in that the frame is fixed to.   Prepare a painted metal plate with an information display coating and heat-sealable resin layer in a predetermined pattern on the surface of the base material / metal plate, and paint the information display plate with the thermoplastic resin layer located at the periphery A method for manufacturing a sleeve signboard, comprising cutting out from a metal plate, sandwiching the periphery of the information display plate in a frame, and heat-sealing the periphery of the information display plate to the frame by hot pressing.

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