JP2011256607A - Laminated plate - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a laminated plate of which end can be easily bent in a relatively short time with a relatively simple process.SOLUTION: A laminated plate P comprises a core material 1 and a metal plate 2 stuck to a surface of the core material 1. The core material 1 has a V-shaped bending groove 4 in a direction from the back side of the core material 1 to the metal plate 2, with an angle between two inclined planes 42 and 43 composing the V-shaped bending groove 4 of larger than 90 degrees, so that the metal plate 2 can be bent toward the core material 1 side along the bending groove 4.

Description

  The present invention relates to a laminated board in which a metal plate is bonded to a core material.

  In general, a laminated plate in which a synthetic resin sheet or a wood sheet is used as a core material and a metal plate made of a metal sheet or the like as a decorative plate is attached to one surface thereof is widely used. These laminates are widely used for building wall materials, furniture, shelves, etc., but the end of the laminate is exposed from the core, preventing damage to the edges and design. In order to enhance, the form which concealed the edge part is proposed.

  For example, in Patent Document 1, after cutting the back side of the decorative material at the edge portion of the base material having a decorative material attached to the surface, a thin-walled curved region and a thick-attached region are formed. By applying a synthetic resin to the bending treatment area and applying an adhesive to the sticking area, curving the bending treatment area, and sticking the sticking area to the end surface on the substrate side, thereby bending the edge portion. A method of manufacturing a laminated board having a surface has been proposed.

  Also in the present applicant, a laminate comprising a core material, a decorative plate adhered to the surface of the core material, and a back plate adhered to the back surface of the core material, on the back plate side A laminated board is proposed in which a V-shaped groove is formed toward the decorative plate, the bottom of the groove is bent in the direction of the back plate, and the opposing inner wall surfaces of the groove are joined (see Patent Document 2).

JP 2005-324376 A JP 2008-6753 A

  However, in the method for manufacturing a laminated board, when the bending region is bent, generally, when the material is bent, when the tool is released, the deformation applied to the material is slightly restored, so-called springback occurs. In particular, the springback appears prominently in a laminated plate on which a thick metal plate is adhered. Therefore, in order to stick the sticking region to the base material side end face, it is necessary to suppress the spring back, and it is necessary to maintain the state until the adhesive or the like used for sticking is cured. In addition, the cutting of the base material requires a relatively high processing accuracy, and this is a problem in addition to the relatively long processing time.

  The present invention is intended to solve the above-described problems and provide a laminate that can be easily bent at a short time in a relatively short time while being relatively easy to process.

  In order to achieve the above object, the present invention is configured as follows.

  That is, the laminated plate according to the present invention is a laminated plate comprising a core material and a metal plate adhered to the surface of the core material, and the core material is formed on the metal plate from the back side of the core material. A V-shaped bent groove is formed, and an angle formed by two inclined surfaces constituting the V-shape of the bent groove is an angle exceeding 90 degrees, and a metal plate is formed along the bent groove. It is characterized by being bent toward the core material side.

  In the laminated plate according to the present invention, no core material may remain at the bottom of the bent groove, and the metal plate may be exposed, but the core is between the bottom of the bent groove and the metal plate. A part of the material may remain.

  The laminated plate according to the present invention has a V-shaped configuration in which the angle formed by the two inclined surfaces exceeds 90 degrees, even though the metal plate attached to the surface of the core is bent. Since it is bent along the bending groove, the bending process can be easily performed in a short time. For example, when the metal plate is bent at 90 degrees, assuming the spring back of the metal plate, the metal plate can be bent at 90 degrees by the spring back by bending slightly deeper than 90 degrees.

  In the laminated plate according to the present invention, if a part of the core material is left between the bottom of the bent groove and the metal plate, the metal plate is not damaged even when the bent groove is formed, and the metal plate is not damaged. The inner corner of the bent part of the plate can be protected.

In the laminated board which concerns on this invention, it is sectional drawing which shows 1st embodiment. It is explanatory drawing of FIG. In the laminated board which concerns on this invention, it is sectional drawing which shows 2nd embodiment. It is explanatory drawing of FIG. In the laminated board which concerns on this invention, it is a perspective view which shows 3rd embodiment. It is an AA expanded sectional view of FIG. It is BB expanded sectional drawing of FIG. In the laminated board which concerns on this invention, it is a perspective view which shows 4th embodiment. It is CC expanded sectional drawing of FIG. In the laminated board which concerns on this invention, it is explanatory drawing which shows 5th embodiment.

  Next, the best mode for carrying out the present invention will be specifically described with reference to the drawings.

  That is, FIG. 1 is a cross-sectional view showing the first embodiment in the bag according to the present invention. In the drawings, 1 is a core material, 2 is a metal plate adhered to the surface of the core material 1, and the laminated plate P according to this embodiment is mainly composed of the core material 1 and the metal plate 2.

  In the present embodiment, the core material 1 is formed by using polyethylene and molding it into a thin plate shape with an extruder and cutting it into a suitable size. The core material 1 is generally made from a thermoplastic synthetic resin such as polyethylene, polypropylene, polyolefin resin, etc., and those using these synthetic resins alone or those kneaded appropriately may be used. It is also possible to use those obtained by kneading wood powder, inorganic materials such as talc, calcium carbonate, aluminum hydroxide, and magnesium hydroxide. Moreover, you may utilize what was foamed using the foaming agent. The thickness of the core material 1 is preferably 1 to 10 mm, more preferably 1 to 3 mm in consideration of moldability, strength, handleability, and the like.

  In the present embodiment, the metal plate 2 is an aluminum alloy plate, and a primer for improving corrosion resistance is applied to the surface of the metal plate 2, and coating is further applied to enhance the decorativeness. The metal plate 2 may be another metal plate made of steel, stainless steel, copper or the like, but an aluminum alloy plate is preferable from the viewpoint of relatively light weight and corrosion resistance. The thickness of the metal plate 2 is preferably 0.05 to 1 mm, more preferably 0.1 to 0.5 mm in consideration of weight, workability, handling, and the like.

  The method of attaching the metal plate 2 to the core material 1 is not particularly limited, but in this embodiment, the adhesive resin layer is formed together when the core material 1 is molded, and then the metal plate 2 is attached. Is what The adhesive resin only needs to have excellent adhesion between the core material 1 and the metal plate 2. For example, ethylene is copolymerized with vinyl acetate, methacrylic acid or its ester, acrylic acid or its ester. Further, those obtained by copolymerizing ethylene and maleic anhydride, those obtained by modifying the polyethylene terminal with maleic anhydride or the like are used. In addition, you may use what apply | coated the adhesive agent to the core material 1, and made the metal plate 2 adhere after that. Also in this case, as the adhesive, any adhesive having excellent adhesion to the core material 1 and the metal plate 3 may be used. A thermoplastic adhesive made of acrylic resin, urethane resin, phenol resin, epoxy resin, or the like, or thermosetting may be used. Can be mentioned.

  Although the metal plate 2 should just be affixed on the surface side of the core material 1, as shown in FIG. 1, the back surface plate 3 similar to the metal plate 2 is affixed on the back surface side of the core material 2 as described above. You may stick using.

  As shown in FIG. 1, the laminated plate P is formed with a V-shaped bent groove 4 narrowing from the back surface side of the core material 1 toward the metal plate 2 in the longitudinal direction of the end portion of the core material 1. The metal plate 2 is bent at approximately 90 degrees toward the core 1 with the bottom 41 of the bending groove 4 as an axis. In the state where the metal plate 2 is bent at 90 degrees, a V-shape of the bending groove is formed so that a gap is provided between two opposing inclined surfaces 42 and 43 of the bending groove 4. The angle formed by the two inclined surfaces is an angle exceeding 90 degrees.

  FIG. 2 is an explanatory view showing an embodiment of a method for processing the laminated sheet P shown in FIG. First, as shown to (a), the V-shaped bending groove 4 is formed in the edge part of the laminated board P, and the metal plate 2 is pressed toward the core material 1 side by setting the bottom part 41 of the bending groove 4 as an axis | shaft. And bend. In this embodiment, the angle α formed by the inclined surfaces 42 and 43 of the bending groove 4 is 110 degrees.

  Generally, when a metal plate is deformed by bending or the like, a springback is generated in which the deformation is slightly restored. Therefore, as shown in FIG. 1B, if the metal plate 2 is bent more than 90 degrees in consideration of the springback, and then the pressing is released, the metal plate 2 is formed by the springback as shown in FIG. Will be returned to an angle of approximately 90 degrees. Thereby, it is possible to maintain the state in which the end portion of the metal plate 2 is bent at 90 degrees without performing the process of sticking the inclined surfaces 42 and 43 of the bending groove 4 with an adhesive. Become. The angle of approximately 90 degrees formed by the metal plate 2 that is returned by springback after being bent is that the flat portion 22 on the front end side of the bent metal plate 2 with respect to the flat portion 21 on the center side of the metal plate 2. May be recognized as 90 degrees visually. Specifically, the angle formed by the two flat portions 21 and 22 may be 85 to 95 degrees.

  The angle α formed by the inclined surfaces 42 and 43 of the bending groove 4 only needs to exceed 90 degrees. However, when the spring back of the metal plate 2 is taken into consideration, an angle α exceeding 100 degrees is preferable. Moreover, if the shape of the bending groove | channel 4 is made into V shape like this form, it will be easy to bend | fold the metal plate 2 centering on the bottom part 41 of the bending groove | channel 4, and is preferable. Furthermore, the inclined surfaces 42 and 43 of the bending groove 4 are preferably flat surfaces because they are easier to process. However, when the metal plate 2 is bent in consideration of the spring back of the metal plate 2, the inclined surfaces 42 and 43 are in the middle. If they do not contact each other, an arc shape or the like may be used.

  In this embodiment, the bottom 41 of the bending groove 4 is V-shaped, so that the metal plate 2 can be easily bent around the corner and the bending position is less likely to be displaced. If the form or the form in which the inclined surfaces 42 and 43 do not intersect and the bottom part 41 has a flat surface, the metal plate 2 can be gently bent.

  FIG. 3 is a cross-sectional view showing a second embodiment of the laminate P according to the present invention. The laminated plate P of the present embodiment is different from the laminated plate P shown in FIGS. 1 and 2 in the form of the bending groove 4 formed in the core material 1, and the form of the other main part is It is the same as that shown in FIGS.

  That is, in the laminated plate P shown in FIGS. 1 and 2, the bottom 41 of the bending groove 4 is substantially in contact with the metal plate 2, that is, the metal plate 2 is exposed at the bottom 41. The plate P is formed by leaving a part of the core material 1 with a thin skin between the metal plate 2 and the bottom portion 41 of the bending groove 4 to form the buffer portion 11.

  With this structure, even if a processing error or the like occurs when forming the bending groove 4, it can be absorbed within the thickness range of the buffer portion 11 of the core material 1, and the metal plate 2 may be damaged. Disappear. Moreover, the inner corner of the bent portion of the metal plate 2 can be protected by the buffer portion 11, and the occurrence of rust due to rain water or the like can be suppressed.

  As shown in FIG. 4, when the laminated plate P of the present embodiment is processed in the same form as in FIG. 2, a bent groove 4 is formed in the longitudinal direction of the end portion of the laminated plate P as shown in FIG. Then, as shown in (b), in consideration of the spring back between the metal plate 2 and the buffer portion 11 of the core material 1, the metal plate 2 is bent more than 90 degrees, and then the pressure is released. As shown in FIG. 3, the folding of the metal plate 2 returns to approximately 90 degrees by the spring back.

  FIG. 5 is a front view showing a third embodiment of the laminate P according to the present invention. The laminated board P which concerns on this form is formed in a rectangular shape, and is attached to a wall or a ceiling surface via attachment fittings (not shown), such as a rivet and a screw. And as for the laminated sheet P, the edge part of the metal plate 2 is bend | folded perpendicularly | vertically at the core material 1 side in each of the edge part 4 sides. With this structure, the front and end surfaces of the laminated plate P are covered with the metal plate P, so that the decorativeness of the laminated plate P can be improved.

  6 to 7 are AA and BB enlarged sectional views of FIG. That is, each end portion of the laminate plate P of the present embodiment is the same as the end portion of the laminate plate P shown in FIG. 3, and narrows from the back surface side of the core material 1 toward the metal plate 2. A V-shaped bending groove 4 is formed in the longitudinal direction of the end portion of the core material 1, and the metal plate 2 is bent 90 degrees toward the core material 1 with the bottom 41 of the bending groove 4 as an axis. . In addition, the form of the edge part of the laminated board P of this form may be the same as the form of the edge part of the laminated board P shown in FIGS.

  FIG. 8 is a front view showing a fourth embodiment of the laminate P according to the present invention. The laminated board P according to the present embodiment is one in which the laminated board P shown in FIG. 5 is disposed in the longitudinal direction and attached to a wall or a ceiling surface via an attachment fitting (not shown) such as a rivet or a screw.

  FIG. 9 is an enlarged cross-sectional view taken along the line CC of FIG. Even when the folding angle of the metal plate 2 after the spring back is smaller than 90 degrees at the end of the laminated plate P, a gap is provided between the two inclined surfaces 42 and 43 constituting the folding groove 4 so as to be adjacent to each other. Since the front end side of the bent metal plate 2 of the laminated plate P can be elastically deformed to the core material 1 side, the flat portion 22 on the front end side of the metal plate 2 comes into contact, and the flat portion 22 can be seen from the surface side. There can be no state. Therefore, the laminated board P can be continuously arrange | positioned without a clearance gap in a longitudinal direction.

  Each of the forms shown in FIGS. 1 to 9 bends the metal plate along the end of the laminate and finishes the end face of the laminate, but the folding position is limited to the end. Instead, the V-shaped bending groove 4 in which the angle formed by the two inclined surfaces exceeds 90 degrees may be formed at an arbitrary position, and the bending groove 4 may be bent along the bending groove 4. 10 (a) to 10 (c) are bent at 90 degrees along the V-shaped bending groove 4 formed at a position other than the end of the laminated plate. Except for the point different from the embodiment shown in FIGS. 1 to 9, the above description is substantially applicable, and thus the detailed description is omitted.

  According to the present invention, it is possible to provide a laminated plate that can be covered with a metal plate without exposing the core material from the end portion in a relatively short time while being relatively easy to process. When it is arranged at intervals on the surface, etc., it is possible to increase the strength and decorativeness of the end portion without using joint material for the interval, and it is possible to adjust the dimensions using the interval, so that the decorative plate material Can be suitably used.

DESCRIPTION OF SYMBOLS 1 Core material 11 Buffer part 2 Metal plates 21 and 22 Flat part 3 Back plate 4 Bending groove 41 Bottom parts 42 and 43 Inclined surface P Laminated plate

Claims (2)

  A laminated board comprising a core material and a metal plate adhered to the surface of the core material, wherein the core material has a V-shaped bent groove from the back surface side of the core material toward the metal plate. The angle formed by the two inclined surfaces forming the V-shape of the bent groove is an angle exceeding 90 degrees, and the metal plate is bent toward the core material along the bent groove. A laminated board characterized.   The laminated plate according to claim 1, wherein a part of the core material remains between the bottom of the bent groove and the metal plate.

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