JP2015174369A - Decorative part, and molding method of decorative part - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a decorative part capable of improving designability of a decorative surface, and to provide a molding method of the decorative part.SOLUTION: A decorative part 1 is formed by integrally molding a body part 2 made of a resin with a sheet member 3. Since irregularities S1 along a grain-shaped pattern of the sheet member 3 are formed on a decorative surface S, designability of the sheet member 3 can be expressed three-dimensionally, and designability of the decorative surface S can be improved.

Description

  The present invention relates to a decorative part in which a resin main body and a sheet member are integrally formed, and a method for molding the decorative part.

  Conventionally, a decorative part in which a resin main body and a sheet member are integrally formed by in-mold molding has been proposed (for example, see Patent Document 1). In the conventional decorative part described in Patent Document 1, the end portion of the sheet member is sandwiched in the main body portion by forming the main body portion in two stages, thereby preventing the peeling of the sheet member.

JP 2011-143560 A

  However, the conventional decorative component described in Patent Document 1 has a disadvantage that the decorative surface formed by the sheet member is flat and the design provided on the sheet member cannot be seen three-dimensionally. In particular, when the decorative part is a model of wood, the texture of the wood cannot be expressed by the decorative surface, and the design is inferior. In addition, when the three-dimensionally formed sheet member and the main body are integrally formed, the sheet member becomes flat during molding.

  The objective of this invention is providing the shaping | molding method of a decorative part and a decorative part which can improve the designability of a decorative surface.

  The decorative part of the present invention is a decorative part in which a resin main body part and a sheet member are integrally formed, and a decorative surface is formed on at least one surface of the main body part by the sheet member. Unevenness along the design of the sheet member is formed.

  According to the present invention as described above, the unevenness along the design of the sheet member is formed on the decorative surface, so that the design of the sheet member can be expressed in three dimensions and the design of the decorative surface is improved. Can be made. In addition, the unevenness | corrugation of a decoration surface may be along so that the outline of a design may be traced, and may be along in the position shifted | deviated from the outline.

  At this time, in the decorative part of the present invention, it is preferable that a flat portion having a smooth surface is formed on the decorative surface along at least one end side. According to such a configuration, since the flat portion is formed along the end side, a round can be formed on the end side, and the sheet can be easily punched after molding, and at the time of punching It is possible to prevent the member from being damaged.

  On the other hand, the decorative part molding method of the present invention is a decorative part molding method in which a resin-made main body and a sheet member are integrally formed, and a decorative surface is formed on at least one surface of the main body by the sheet member. The sheet member is placed along the corresponding contact surface using a first mold having irregularities formed on the contact surface that contacts the sheet member, and the mold is closed by a second mold that is a pair of the first mold. And the body is molded integrally with the sheet member by injecting resin into the cavity.

  According to such a method for molding a decorative part of the present invention, irregularities along the design of the sheet member can be formed on the decorative surface, and the design of the decorative surface can be improved. In addition, the unevenness | corrugation along a design may be previously formed in the sheet | seat member before resin injection | pouring, and the unevenness | corrugation does not need to be formed. When unevenness is formed in advance on the sheet member, the contact surface of the first mold has unevenness, thereby preventing the unevenness from being flattened by heat and inflow pressure generated during resin injection. Can do. On the other hand, when the unevenness is not formed on the sheet member, the sheet member is easily deformed by the heat generated when the resin is injected, and the unevenness is formed on the decorative surface by pressing the sheet member against the contact surface by the inflow pressure. Can do.

  At this time, in the method for molding a decorative part according to the present invention, it is preferable that a flat portion having a smooth surface is formed on at least one end side of the contact surface. According to such a configuration, the flat portion can be formed along the edge of the decorative surface, and the decorative part can be easily die-cut as described above, and the sheet member is damaged during die-cutting. Can be prevented.

  According to the decorative part and the decorative part molding method of the present invention as described above, the design of the decorative surface can be improved by forming the irregularities along the design of the sheet member on the decorative surface.

It is a perspective view which shows the decorative component which concerns on embodiment of this invention. It is sectional drawing which shows a mode that the said decorative component is shape | molded. It is sectional drawing which shows a mode that the said decorative component is shape | molded.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. As shown in FIG. 1, the decorative component 1 of the present embodiment is a cap member that constitutes the upper end surface of a pillar member P that imitates wood, and is provided on the resin main body 2 and the upper surface of the main body 2. The main body 2 and the sheet member 3 are integrally formed. The rectangular tube portion C of the column member P is made of, for example, an aluminum shape, and a wood-like pattern is formed on the surface by painting or a sheet member.

  The main body portion 2 includes a plate portion 21 on the surface of which the sheet member 3 is provided, and leg portions 22 fixed to the rectangular tube portion C. The plate portion 21 is formed to have substantially the same area as the upper end surface of the column member P. The leg part 22 is formed so that the outer dimension is substantially equal to the inner dimension of the rectangular tube part C, and the decorative part 1 is fixed to the rectangular tube part C by being press-fitted into the rectangular tube part C.

  The sheet member 3 is a non-vinyl chloride film, for example, and is configured by laminating a wood-like ink layer using polyethylene as a base material, and further laminating a transparent layer made of polypropylene or a urethane-based top layer thereon. Then, the surface has a wood-like pattern as a design, and the decorative surface S of the decorative part 1 is configured.

  Next, a method for integrally molding the decorative part 1 will be described. First, as shown in FIG. 2A, the sheet member 3 is placed along the contact surface MA of the female mold M1 as the first mold. Here, the contact surface MA is formed with unevenness along the wood-like pattern of the sheet member 3, and the surface of the sheet member 3 is formed with unevenness 3A along the wood-like pattern in advance. Therefore, the unevenness 3A of the sheet member 3 and the unevenness of the contact surface MA are fitted to each other. Further, the contact surface MA is formed with a flat portion MB having a smooth surface along the edge, and the flat portion MB is formed in an arc shape having a predetermined radius. Such flat portions MB are provided on all four sides surrounding the contact surface MA. Further, the female mold M1 is provided with a slide mold M2 that is slidable in the left-right direction in FIG. 2, and the end of the slide mold M2 is arranged along the standing wall MC of the female mold M1.

  Next, as shown in FIG. 2 (B), the mold is closed using a male part M3 for plate part as a second mold to be paired with the female mold M1, and a resin is injected into the formed cavity to inject the plate part 21. Form.

  Next, after removing the plate portion male mold M3 as shown in FIG. 3 (A), the slide mold M2 is slid as shown in FIG. 3 (B), and the end of the sheet member 3 is bent. Further, as shown in FIG. 3C, the leg member 22 is formed by closing the mold using the leg male mold M4 as the second mold and injecting resin into the formed cavity. 3 is sandwiched between the plate portion 21 and the leg portion 22 to prevent the sheet member 3 from being peeled off from the main body portion 2 after molding.

  The leg molds M4 are removed and the slide mold M2 is returned to its original position to open the mold, and the decorative part 1 molded from the female mold M1 is removed.

  On the decorative surface S of the decorative part 1 formed as described above, the unevenness S1 is formed along the grain pattern of the sheet member 3, and the flat portion S2 having an arc shape and a smooth surface is formed along the edge. It is formed.

  According to this embodiment, there are the following effects. In other words, the design of the sheet member 3 can be expressed three-dimensionally by forming the unevenness S1 along the grain-like pattern of the sheet member 3 on the decorative surface S of the decorative component 1. Designability can be improved.

  Further, since the female mold M1 has unevenness on the contact surface MA, it is possible to prevent the unevenness 3A of the sheet member 3 from being flattened by heat and inflow pressure generated during the injection of the resin. The unevenness S1 can be reliably formed.

  Further, the arcuate flat portion MB is formed along the end side of the contact surface MA of the female mold M1, and the arcuate flat portion S2 is formed along the end side of the decorative surface S, so that the decorative part is formed. 1 can be easily die-cut after molding, and the sheet member 3 can be prevented from being damaged during die-cutting.

  In addition, this invention is not limited to the said embodiment, Including other structures etc. which can achieve the objective of this invention, the deformation | transformation etc. which are shown below are also contained in this invention. For example, in the above embodiment, the arc-shaped flat part MB is formed along the edge of the contact surface MA of the female mold M1, but the flat part is not formed and the vicinity of the edge of the contact surface is formed. In such a configuration, the member constituting the female abutment surface and the standing wall are provided separately. If so, it can be easily punched out. According to such a structure, unevenness | corrugation can be formed also in the edge side vicinity of a decoration surface, and also designability can be improved.

  Moreover, in the said embodiment, although the unevenness | corrugation 3A was previously formed in the sheet | seat member 3, the unevenness | corrugation may not be formed in the sheet | seat member before shaping | molding of the decorative component 1, and it generate | occur | produces at the time of injection | pouring of resin. The sheet member can be easily deformed by heat, and the sheet member can be pressed against the unevenness of the contact surface MA of the female mold M1 by the inflow pressure to form the unevenness S1 on the decorative surface S in substantially the same manner as in the above embodiment.

  In the above embodiment, the sheet member 3 has a wood-like pattern on the surface. However, the design formed on the sheet member 3 may be, for example, a geometric pattern, or a character or a symbol. The texture may be improved or enhanced by the unevenness formed on the decorative surface.

  Moreover, in the said embodiment, although the decorative surface S shall be formed in one surface of the decorative component 1, the decorative surface may be formed in two or more surfaces of a decorative component.

  Moreover, in the said embodiment, although the main-body part 2 shall be shape | molded in two steps so that the sheet | seat member 3 may be pinched | interposed with the board part 21 and the leg part 22, a main-body part is shape | molded in one step | stage, without pinching | interposing a sheet member. Alternatively, according to such a configuration, the number of manufacturing steps can be reduced. The main body may be formed in three or more stages depending on the shape and the like.

  Moreover, in the said embodiment, although the cap member which comprises the upper end surface of the column member P was illustrated as the decorative component 1, decorative components, such as a gate column, a gate sleeve, a collar, the wall of a building, the column of a carport, a wall, etc. It may be attached to a building material, may be attached to furniture or the like, and may be attached to an appropriate structure by a resin main body, and the decorative surface may constitute at least a part of the surface of the structure.

  In addition, the best configuration, method and the like for carrying out the present invention have been disclosed in the above description, but the present invention is not limited to this. That is, the invention has been illustrated and described primarily with respect to particular embodiments, but may be configured for the above-described embodiments without departing from the scope and spirit of the invention. Various modifications can be made by those skilled in the art in terms of materials, quantity, and other detailed configurations. Therefore, the description limiting the shape, material, etc. disclosed above is an example for easy understanding of the present invention, and does not limit the present invention. The description by the name of the member which remove | excluded the limitation of one part or all of such is included in this invention.

DESCRIPTION OF SYMBOLS 1 Decorative part 2 Body part 3 Sheet member S Decorative surface M1 Female type (1st type)
M3 Male for plate (second type)
M4 Leg male type (second type)
S1 Concavity and convexity S2 Flat part MA Contact surface MB Flat part

Claims (4)

A resin-made main body part and a sheet member are integrally molded, and a decorative part having a decorative surface formed on at least one surface of the main body part by the sheet member,
The decorative part is characterized in that irregularities are formed along the design of the sheet member on the decorative surface.   The decorative part according to claim 1, wherein a flat portion having a smooth surface is formed along at least one end side of the decorative surface. A molding method of a decorative part in which a resin main body and a sheet member are integrally molded, and a decorative surface is formed on at least one surface of the main body by the sheet member,
Using the first mold in which irregularities are formed on the contact surface that contacts the sheet member, the sheet member along the corresponding contact surface,
A mold is closed by a second mold that is a pair of the first mold to form a cavity,
A method for molding a decorative part, wherein the body is molded integrally with the sheet member by injecting resin into the cavity.   The method for forming a decorative part according to claim 3, wherein a flat portion having a smooth surface is formed along at least one end side of the contact surface.

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