JP2012000912A - Laminated sheet - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a laminated sheet which prevents reduction in strength even when bent at a right angle.SOLUTION: The laminated sheet P formed by adhering a metal foil 2 to both sides of a substrate 1 made of a synthetic resin includes:two notches 3 arranged adjacent to each other with a V-shaped cross section that notches the substrate 1 from one metal foil 2 of the laminated sheet P, and a remnant 4 having a substantially triangular section formed between the notches 3 and 3. There is sufficient wall thickness of the remnant 4 having the substantially triangular section when the laminated sheet P is bent substantially at a right angle, thereby preventing reduction in strength.

Description

  The present invention relates to a laminated board in which both surfaces of a substrate are sandwiched between metal foils.

  Conventionally, various inventions have been made for laminated plates. For example, a decorative sheet (26) is attached to the outer surface (20a) side of a substrate (20), and a substrate ( 20) of the decorative board in which a groove (24) composed of a pair of inclined surfaces (24c, 24d) and a bottom surface (24a) having a substantially V shape is formed from the inner surface (20b) side to the outer surface (20a) side. A part (22a, 24d) of a pair of inclined surfaces (24c, 24d) is formed in a bent structure to bend the substrate (20) toward the inner surface (20b) with the groove (24) as the center to form the groove (24). A laminated board which is a decorative board provided with a bent structure in which corners of substantially right angles are formed by abutting 22b) is disclosed (Patent Document 1).

JP-A-8-284367

  However, since the conventional laminated plate as described in Patent Document 1 is bent toward the inner surface side with the V-shaped groove as the center, a substantially right-angled corner is formed. Since there is only the thickness of the decorative sheet and the thickness of the substrate that forms the bottom surface cut into a thin wall, when an external force is applied to a substantially right-angled corner, it easily dents and the strength is not sufficient. .

  The present invention has been made in view of the problems as described above, and an object of the present invention is to provide a laminated board that can greatly reduce the decrease in strength even when bent at a right angle.

In order to achieve the above object, the present invention is configured as follows.
That is, the laminated board according to the present invention is a laminated board in which metal foil is adhered to both surfaces of a synthetic resin board, and has a V-shaped cutout section in which the board is cut out from one metal foil of the laminated board. Are arranged in parallel, and a remaining portion having a substantially triangular cross section is formed between the notches.

  Moreover, the laminated board which concerns on this invention is a laminated board by which metal foil is stuck on both surfaces of the board | substrate made from a synthetic resin, The cross-sectional V-shaped notch part which notches a board | substrate from one metal foil of this laminated board Are arranged side by side, a remaining portion having a substantially trapezoidal cross section is formed between the cutout portions, and a metal foil is left on the upper bottom surface forming the substantially trapezoidal cross section.

  According to the present invention, two V-shaped cutout portions that cut out the substrate from one metal foil of the laminated plate are juxtaposed, and the remainder of the substantially triangular cross section is formed between the cutout portions. When the plate is bent at a substantially right angle, there is a sufficient thickness of the remaining portion having a substantially triangular cross section, so that the strength reduction can be greatly reduced.

  According to the present invention, two V-shaped cutout portions that cut out the substrate from one metal foil of the laminated plate are juxtaposed, and a remaining portion having a substantially trapezoidal cross section is formed between the cutout portions. Since the metal foil remains on the upper bottom surface that forms the structure, when the laminate is bent at a substantially right angle, the metal foil remains on both sides of the remainder in addition to the thickness of the substrate, further reducing the strength Can be reduced.

It is sectional drawing which shows one Embodiment of the laminated board which concerns on this invention. It is sectional drawing which shows the state which bent the laminated board of FIG. 1 at substantially right angle. It is a front view of the principal part expansion of the laminated board of FIG. It is sectional drawing which shows another one Embodiment of the laminated board which concerns on this invention. It is sectional drawing which shows the state which bent the laminated board of FIG. 4 at the substantially right angle. It is a front view of the principal part expansion of the laminated board of FIG.

Next, the best mode for carrying out the present invention will be specifically described with reference to the drawings.
Reference numeral 1 denotes a synthetic resin substrate, 2 denotes a metal foil, and the metal foil 2 is adhered to both surfaces of the synthetic resin substrate 1 to form a laminate P.
1 to 3, two V-shaped cutout portions 3 in which the substrate 1 is cut out from one metal foil 2 of the laminated plate P are juxtaposed, and a cross section is formed between the cutout portions 3 and 3. A substantially triangular remainder 4 is formed.

  The bent plate P is bent in the direction of the arrow X from the state of FIG. 1 so that the inclined surfaces 31 of the V-shaped cutout portion 3 formed on the left and right of the remaining portion 4 are brought into contact with each other. Is formed at a substantially right angle, but by appropriately adjusting the V-shaped angle α of the notch 3, the laminate P having a desired bending angle can be formed.

  As shown in FIG. 3, in this embodiment, since the upper metal foil 2 remains at the upper end of the remaining portion 4 having a substantially triangular cross section, the thickness and strength of the metal foil 2 are added to the thickness and strength of the substrate 1. The strength of the bent portion of the laminated plate P is improved.

  4 to 6, two V-shaped cutout portions 3 are formed side by side so as to cut out the substrate 1 from one metal foil 2 of the laminated plate P, and the cross section between the cutout portions 3 and 3 is substantially omitted. A trapezoidal remaining portion 4 is formed, and the metal foil 2 remains on the upper bottom surface 41 forming the substantially trapezoidal cross section.

  The laminate P is bent from the state of FIG. 4 in the direction of the arrow X, and the inclined surfaces 31 of the V-shaped notch 3 formed on the left and right of the remaining portion 4 are brought into contact with each other. Is formed at a substantially right angle, but by appropriately adjusting the V-shaped angle α of the notch 3, the laminate P having a desired bending angle can be formed.

  In addition, when arranging two V-shaped cutout portions 3 that cut out the substrate 1 from one metal foil 2 of the laminate P, two commonly used rotary blades such as a rotary cutter are arranged and rotated. And a notch having a V-shaped cross section may be formed. In that case, when processing the remaining part 4 in the form shown in FIGS. 1 to 3 to have a substantially triangular cross section, processing the remaining part 4 in the form shown in FIGS. 4 to 6 to have a substantially trapezoidal cross section. In comparison, the distance between the two rotary blades is closer, so that the metal foil 2 located at the upper end of the remaining portion 4 having a substantially triangular cross section may be partially or largely cut off during processing. Even in such a case, since the substrate 1 and the lower metal foil 2 remain in the remaining portion 4, the strength of the portion where the laminated plate P is bent is sufficiently ensured.

  Further, in the above embodiment, the notch 3 having a V-shaped cross section is illustrated so that the substrate 1 is notched from one metal foil 2 of the laminated plate P, and only the lower metal foil 2 remains in the notched portion. However, the synthetic resin substrate 1 may be left to the extent that the bending of the laminated plate P is not hindered.

  The board | substrate 1 may be formed only from a synthetic resin part, and additives, such as a filler, may be mix | blended and formed. The type of the substrate 1 is not particularly limited. For example, a polyolefin resin is used. For example, polyethylene, polypropylene, polybutene, polybutene, polyisoprene, polymethylpentene, ethylene-propylene copolymer, ethylene-vinyl acetate copolymer. A polymer, an ethylene-α-olefin copolymer, an ethylene-ethyl acrylate copolymer, an ethylene-unsaturated carboxylic acid copolymer, a metal neutralized product, etc., or a mixture of two or more thereof are used. be able to.

  The filler may be at least one selected from the group consisting of tancal, talc, mica, silica, aluminum hydroxide, magnesium hydroxide, glass or glass fiber, clay, wood flour, carbon fiber, montmorillonite, and fly ash. .

  Moreover, you may make the board | substrate 1 foam as needed. Any conventionally known technique can be used as the foaming technique. In general, chemical foaming can be classified into chemical foaming, which generates gas by thermal decomposition or chemical reaction, and physical foaming, which heats a low-boiling point liquid to vaporize, and chemical foaming agents include inorganic sodium bicarbonate and carbonic acid. Ammonium, ammonium bicarbonate, ammonium nitrite, sodium borohydride, light metal, azide compound and the like, and azo, nitroso, hydrazide and the like as organic foaming agents can be used in any combination. In particular, physical foaming is mainly used for foaming at a high foaming ratio exceeding 2 times, and carbon dioxide gas and aliphatic hydrocarbons are mainly used as foaming agents. In addition, a chemical foaming agent is often used in combination with physical foaming to adjust the cell shape of the foam.

  Further, the substrate 1 may be provided with, for example, a heat stabilizer, an acid neutralizer, an ultraviolet absorber, a light stabilizer, a colorant such as a pigment or a dye, a filler, an antistatic agent, an antibacterial agent, an antifungal agent, A lubricant, a nucleating agent, a flame retardant, an antiblocking agent, a dehydrating agent, a gloss adjusting agent, and the like may be added.

  Although the kind of metal foil 2 is not specifically limited, Aluminum alloy and stainless steel are used suitably.

  In addition, in the laminate P in which a decorative sheet made of a synthetic resin such as vinyl chloride is attached to the outside of the metal foil 2 attached to both surfaces of the substrate 1, the substrate 1 is separated from one metal foil 2 of the laminate P. Two cutout portions 3 having a V-shaped cross section may be provided side by side, and a remaining portion 4 having a substantially triangular or trapezoidal cross section may be formed between the cutout portions 3 and 3.

  According to the present invention, two V-shaped cutout portions that cut out the substrate from one metal foil of the laminated plate are juxtaposed, and the remainder of the substantially triangular cross section is formed between the cutout portions. When the plate is bent at a substantially right angle, there is a sufficient thickness of the remaining portion having a substantially triangular cross section, and therefore it can be suitably used for applications such as a baseboard for a corner and a parting material that can significantly reduce the strength reduction.

DESCRIPTION OF SYMBOLS 1 Board | substrate 2 Metal foil 3 Notch part 31 Inclined surface 4 Remaining part 41 Upper bottom surface P Laminated board (alpha) Angle

Claims (2)

  In a laminated board in which metal foil is adhered to both surfaces of a synthetic resin substrate, two V-shaped cutout portions are formed side by side so as to cut out the substrate from one metal foil of the laminated plate. A laminate having a substantially triangular cross-section in between.   In a laminated board in which metal foil is adhered to both surfaces of a synthetic resin substrate, two V-shaped cutout portions are formed side by side so as to cut out the substrate from one metal foil of the laminated plate. A laminate having a substantially trapezoidal cross-section remaining therebetween, and a metal foil remaining on the upper bottom surface forming the substantially trapezoidal cross-section.

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