JP2005256390A - Decorative member and construction structure thereof - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide decorative members which have a configuration and a structure easy to connect and construct without requiring skills when the decorative members are laid on a construction surface such as a floor surface, wall surface, ceiling surface or the like as they are connected to one another for assembly and mounting, furthermore which are stable in extruding moldability of a thermoplastic resin, and are hard to be twisted or bent in or after molding, and to provide a construction structure thereof. <P>SOLUTION: The decorative member is specialized in combining a first decorative member with a second decorative member. The first decorative member is provided with substantially stripe recessed groove part of the same shape formed on both short sides of a substantially rectangular plate-like body, toward the center of the plate-like body from the center of both short sides. The second decorative member has the same thickness as that of the first decorative member, can be fitted in between the two recessed groove parts formed in arranging the two first decorative members with both short sides joined together, and has substantially two times longer length than the recessed groove part depth of the two first decorative members, and is made of a plate-like body of substantially rectangular shape having substantially the same width as that of the recessed groove part. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a decorative material used as a building interior / exterior material such as a flooring material, a wall material, and a ceiling material, and particularly relates to a decorative material having a shape structure that is easy to construct.

  Conventionally, as a decorative material for the above-mentioned various uses, a natural veneer, a decorative paper or a decorative sheet that has been designed by printing on a wood or the like on a paper or a synthetic resin sheet, on a wooden substrate such as plywood or fiberboard, etc. Many things are used.

  When these decorative materials are used as building interior / exterior materials such as floor materials, wall materials, and ceiling materials, floor surfaces (floor structure material surfaces), wall surfaces (wall structure material surfaces), ceiling surfaces (ceiling structure material surfaces) ), A plurality of decorative materials are arranged flat one by one, and the end portions of the decorative materials are sequentially fitted to each other, connected and fixed, and spread.

  In such a conventional laying method of a decorative material by a joint construction, a female material comprising a concave portion in the longitudinal direction at the substantially central portion of a side surface of one end portion of a decorative material base material formed from an appropriate base material. Use the decorative material formed on the side surface of the other end portion with a male fruit consisting of a convex part in the longitudinal direction at its substantially central part, and fit the female fruit and the male fruit. In general, it was connected and fixed and spread.

  Therefore, when connecting a plurality of decorative materials by fitting, in order to insert the male skin of the other cosmetic material into the female skin of one cosmetic material, each cosmetic material is placed in the lateral direction (on the laying surface). However, since there is no locking mechanism or the like for fixing in the fitted state at the mating part between the female and the male, both are generally dense. Therefore, when inserting, it often has to be inserted by striking with a wooden mallet or the like from the lateral direction, and it takes time and labor for construction. Furthermore, in order to fix so that it may not loosen after construction, it was necessary to nail and fix the fitting portion.

  In addition, if the decorative material or the construction material of the laying surface is damaged or dirty due to the passage of time after construction, it may be necessary to remove and replace some of the decorative material. Since the fitting part between the fruit and the male is arranged in the in-plane direction with respect to the laying surface, in the construction state where the decorative material cannot be moved in the in-plane direction, the fitting is released and removed. The fitting part had to be cut with a saw or the like. Similarly, the decorative material newly laid by replacement cannot be laid and fitted into the part from which the decorative material has been removed unless the fitting portion is cut with a saw or the like. There was a need to pull out the nails at some places.

  In order to solve these problems, the inventors of the present invention are relatively skilled when laying and attaching a decorative material to a construction surface such as a floor surface, a wall surface, or a ceiling surface by connecting construction. We proposed a decorative material with a shape and structure that can be easily connected and connected. That is, along both opposite ends of the decorative material substrate, a surface groove portion and a back groove portion are provided linearly on the substrate surface at one end and the substrate back surface at the other end, respectively. A decorative material for connecting and constructing a plurality of cosmetic materials in a planar shape by combining a front groove groove portion of the decorative material and a back groove groove portion of the other decorative material. An engagement protrusion is provided on each of the inner surface on the front groove portion side of the front end portion of the outer end convex portion of the material and the inner surface on the rear groove portion side of the front end portion of the outer end convex portion of the other decorative material. The outer end convex part which constitutes the back groove part of the other sheet of decorative material from above is fitted in the surface groove part of the material, and the outer end which constitutes the surface concave groove part of the one decorative material The convex portion is closely inserted and fitted into the back groove groove of the other one decorative material, and locked by the engaging protrusion. A decorative material that enables connection construction by assembling a plurality of the decorative material to the surface (see Patent Document 1).

  However, in the case where the base material of the decorative material is a molded body by extrusion molding of a thermoplastic resin (the direction along the both ends where the outer end convex portion and the concave groove portion of the base material are formed is the extrusion direction). Since the concave / convex fitting direction at both ends of the base material is perpendicular to the laying surface, the cross-sectional shape of the base material is a point-symmetrical shape, which makes it easy to twist during molding or especially after aging, eliminating twisting. Therefore, there is a problem that it takes time to examine the temperature condition of the machine or to adjust the mold.

  In addition, when the width of the front groove is wider than the width of the back groove, the cross-sectional shape of the base material does not become a point-symmetric shape accurately. There was a problem that it was easy to bend.

  In addition, the shape of the complicated shape portion is often less stable at the time of extrusion molding of the thermoplastic resin, and there is a problem that a simple shape is preferable.

The prior art document information related to the present invention will be listed below.
JP 2003-97011 A Japanese Utility Model Publication No. 56-88825 JP-A-6-26181 Japanese Patent Laid-Open No. 9-60258 JP-A-9-256603 JP-A-10-61150 JP 2000-248725 A JP 2001-73535 A JP 2003-213903 A Special table 2003-519735 gazette

  The present invention has been made in order to solve these problems, and the problem is that the decorative material is laid on a construction surface such as a floor surface, a wall surface, or a ceiling surface by connecting construction and assembled. When performing installation work, it has a shape structure that is relatively easy to connect without requiring skill, and the extrusion processability of thermoplastic resin is stable, and during or after molding It provides a decorative material and its construction structure that are difficult to twist and bend.

  In order to solve the above problems, the decorative material of the present invention is characterized in that the invention according to claim 1 has the same shape from the center of both short sides to the center of the plate body on both short sides of the substantially rectangular plate. The first decorative member provided with a substantially grooved groove portion, and the same thickness as the first decorative member, and 2 when the two first decorative members are aligned on both short sides thereof A decorative material comprising a combination of a second decorative member made of a substantially rectangular plate-like body having a length approximately twice as long as the depth of the concave groove portion that can be fitted into one concave groove portion and substantially the same width as the concave groove portion. This is the construction structure.

  The invention according to claim 2 is the decorative material according to claim 1, wherein the second decorative member is made of a thermoplastic resin having an initial flexural modulus of 800 MPa or less.

  When applying the decorative material of the present invention, a plurality of decorative materials are assembled in a planar shape and connected to each other while alternately arranging the first decorative member and the second decorative member. The second decorative member is placed in the side recess of the first decorative member in the set of one first decorative member and one second decorative member, and the second decorative member is placed on the opposite side surface of the second decorative member. One decorative member is inserted and fitted, and both the first decorative member and the second decorative member are connected as a set, and a large number of sets of the first decorative member and the second decorative member are faced. It is assembled and assembled into a shape.

  In the decorative material of the present invention, the first decorative member and the second decorative member are alternately formed by combining the second decorative member from the lateral direction in the groove portion of the first decorative member. Since many sets of the first decorative member and the second decorative member can be connected to each other in a planar shape, the initial bending elastic modulus of the thermoplastic resin constituting the second decorative member is soft and 800 MPa or less, There is no need to insert it by hitting it with a wooden mallet from the side like a flooring material, so that it is possible to greatly improve the interior and exterior workability and construction efficiency of flooring materials, wall materials and ceiling materials.

  In addition, in the decorative material of the present invention, since the second decorative member serving as the role of connecting the first decorative member is soft, the decorative material, the structural material of the laying surface, or the like may be damaged due to the passage of time after the construction. If it gets dirty, you can easily remove and replace a part of the makeup material that has been laid. At that time, insert a spatula into the gap at the edge of the makeup material and lift the edge of the makeup material. The fitting between them can be easily released, and only the cosmetic material to be replaced can be easily removed and replaced. In addition, the decorative material newly laid by the replacement can be easily fitted and connected simply by pressing the end of the decorative material diagonally from the top of the other decorative material, greatly improving workability and efficiency. There is an effect that can be done.

  In the decorative material of the present invention, since the first decorative member and the second decorative member have a line-symmetric cross-sectional shape, the decorative material base is a molded body formed by extrusion molding of a thermoplastic resin. Even in some cases, twisting and bending during molding or after molding are unlikely to occur, and an excellent effect in moldability and productivity is exhibited.

  Furthermore, since the shape is simple, the shape stability during extrusion molding of the thermoplastic resin is improved.

  The embodiment of the decorative material of the present invention will be described in detail below with reference to the drawings. The first decorative member of the present invention has a substantially rectangular plate-shaped decorative material base material 1 as shown in FIG. Along the opposite ends, linear concave grooves 2 are formed on the side surfaces of the base material 1 at both ends.

  On the other hand, as shown in FIG. 2, the second decorative member constructed in combination with the first decorative member has the same thickness as the bottom surface of the groove portion of the first decorative member, and the width is the depth of the groove portion. The plate shape is about twice that of

  As shown in FIG. 3, one first decorative member and one second decorative member are used as a set, and as shown in FIG. One end 3 is closely inserted into and fitted into one end 3 of the second decorative member, and the one recessed groove 2 of the first decorative member is closely fitted.

  In addition, in order to prevent the level | step difference and shakiness in a fitting location, the thickness of the said 1st decorative member base material is t, the surface of a base material ditch | groove part and a back surface outer side thickness are t1, and a ditch | groove part bottom face length That is, when the thickness of the second decorative member is h, the relationship between t, t1, and h is designed to be t = 2t1 + h.

  Moreover, in the fitting connection state with a 1st decorative member, a 2nd decorative member, and another 1st decorative member, the outer surface part 4 of the groove part 2 of a 1st decorative member, and another 1st decorative member A gap 5 having a predetermined interval d is provided between the outer groove 4 and the outer surface 4 of the decorative member.

  The gap d of the gap 5 may be set to non-clearance with d = 0, but the end portion 3 of the second decorative member can be smoothly inserted into the concave groove portion 2 of the first decorative member from obliquely above. In addition, when a part of the first decorative member after laying is removed for replacement or the like, a spatula or the like is inserted into the gap and the end of the first decorative member is lifted off. It is appropriate to provide a clearance within a certain range (usually about 0.3 to 1.5 mm).

  Then, the first decorative member and the second decorative member in the set are used by using a plurality of sets of the first decorative member and the second decorative member that are fitted and connected in this manner. The second decorative member of the second decorative member is another end of the second decorative member at the end of the decorative member opposite to the side on which the second decorative member is fitted and connected. The end convex portion 3 on the opposite side to the side on which the first decorative member is fitted and connected is fitted from the lateral direction into the concave groove portion 2 at the end of the first decorative member in the set, and the following. By repeating this operation many times, as shown in FIG. 4, the first decorative member and the second decorative member can be alternately arranged and assembled into a planar shape for connection construction.

  As a first set, instead of using the above-described two-piece set of the first decorative member, if a set in which three pieces of the first decorative member, A, are fitted and connected in this order, the first set is used. The left side of one set is a set in which the second decorative member is fitted and connected to the right side of the first decorative member, and the right side of the first set is the second decorative member on the left side of the first decorative member. By sequentially fitting and connecting the sets that are fitted and connected, the decorative material can be fitted and connected from the first set in both the left and right directions.

  Regarding the material of each part and the structure of details in the decorative material of the present invention other than the matters detailed above, basically, the above-mentioned patent document 1 (Japanese Patent Laid-Open No. 2003) related to the previous patent application by the present inventors is disclosed. -97011 gazette). Only the outline will be described below.

  In the present invention, the material of the decorative material base 1 is not particularly limited, but it is desirable to use a material having elasticity so that fitting and fixing can be easily performed, and it is most desirable to use a thermoplastic resin. Specific examples include polyolefin resins such as polypropylene and polyethylene, polyester resins, polystyrene resins, acrylic resins, polyamide resins, and the like.

  In addition, the fitting part of the decorative material base material 1 in the first decorative member and the second decorative member of the present invention is easy to fit at the time of construction, and does not come off easily in daily use after construction, and is repaired. At the time of replacement, it is important that it can be easily removed, but as the physical properties required for the decorative material base material 1 at that time, moderate bending stress and resilience are important. That is, it has a so-called hinge property such that when a certain external force is applied during fitting and removal, the fitting portion opens and closes again when the external force is released. In particular, it is important that the second decorative member has an initial flexural modulus of 800 MPa or less.

  For this purpose, in order to obtain an appropriate bending stress and recoverability, the thermoplastic resin used for the decorative material base 1 is suitably a polyolefin resin such as polypropylene or polyethylene. In case of hard resin such as polystyrene, polyester, etc., a large force is required to open the fitting part, and at the same time, there is poor recovery when the fitting part is opened too much, and the fitting part is inadvertently detached. Because there is.

  The decorative material base material 1 can also be provided with a base material internal structure portion such as a foam layer made of a foaming agent or a filler layer made of a filler inside the structure. For example, a foaming agent is applied to part or all of the decorative material base 1 mainly composed of a thermoplastic resin, and bubbles are contained in layers on the back surface side, the front surface side, or the intermediate layer of the decorative material base material 1. Forming a foam layer or dispersing bubbles throughout the decorative material base 1 to form the whole as a foam layer, thereby imparting elasticity (cushioning) and heat insulation to the decorative material base 1 You may make it do. In this case, an appropriate expansion ratio is about 1.1 to 10 times.

  Similarly, the filler layer is applied to a part or the whole of the decorative material base 1 mainly composed of a thermoplastic resin, so that the back surface side or the front surface side or the intermediate layer of the decorative material base 1 is applied. A filling layer containing the emphasis material may be formed in a layered manner, or a filler may be dispersed throughout the decorative material base 1 to form the whole as a filling layer. The presence of the filling layer has an advantage of giving the decorative material base 1 rigidity that is difficult to be deformed by stress and giving dimensional stability with less expansion and contraction due to temperature change.

  As the filler, inorganic fillers such as calcium carbonate, barium sulfate, talc, and clay, and organic fillers such as wood powder and paper powder are used. In order to give a texture similar to wood and workability such as cutting and nailing, it is desirable to use a wood-based filler such as wood powder. The average particle diameter of the wood filler is suitably 1 to 200 μm, and the blending ratio of the wood filler in the portion containing the wood filler is 100 parts by weight of the thermoplastic resin. 10 to 500 parts by weight is appropriate.

  In this way, the bending stress and restorability of the cosmetic base material 1 can be improved by adopting a composite structure in which a foam layer or a filling layer is introduced into the resin of the cosmetic base material 1 or by adjusting the foaming ratio and the blending ratio of the filler. Can be optimized. That is, the bending stress can be increased by increasing the blending amount of a filler such as a wooden filler. On the other hand, the introduction of the foam layer can reduce the bending stress while maintaining appropriate strength properties.

  In addition, when a foam layer or a filling layer is introduced, the strength at the time of cutting the decorative material base 1 is reduced as compared with the case of the thermoplastic resin alone. It can be easily cut and removed with a cutting edge such as a cutter knife.

  The decorative material base 1 may be a resin molded body using a molten resin material, a hot press molded body that press-molds a resin material using a hot press means, or a resin material that is cut using a cutting means. A resin molded body to be molded may be used, and the manufacturing method (molding method) may be manufactured by an injection molding method, a hot press molding method, a profile extrusion molding method, a cutting method, a cast molding method, or the like. .

  The surface layer portion of the surface (upper surface) of the decorative material base 1 may be configured by stacking decorative sheets prepared separately from the decorative material base 1. Although it does not specifically limit as a decorative sheet, the makeup | decoration pattern ink layer is given to the surface of a coloring base material sheet by printing, and a transparent protective layer (sheet | seat, film, or coating) is applied to the surface of the coloring base material sheet | seat from the top of a decorative pattern ink layer. Layer), a top coat layer is coated on the transparent protective layer, and an embossed portion appropriately formed on the surface can be used if necessary.

  Various thermoplastic resins are used as the constituent material of the colored base sheet and the transparent protective layer (sheet, film) of the decorative sheet. However, considering the recyclability of the decorative material, it is similar to the decorative base material 1. A thermoplastic resin is suitable. In other words, if the main component of the decorative material base 1 is a polyolefin resin, the decorative sheet also has the polyolefin resin as a main component.

  The decorative pattern of the decorative sheet is preferably a wood grain design, and the decorative sheet may be entirely transparent. When the decorative material base material 1 contains a wooden filler, the decorative material base material 1 itself can have a visual and tactile wood texture, and its surface has transparency. Can be used to express the design utilizing the wood texture of the decorative material substrate 1.

  The decorative sheet is mainly laminated on the surface (upper surface) of the decorative material base 1, but considering the appearance of the seam (fitting portion) in the fitting connection construction state of the first decorative member and the second decorative member, It is desirable to laminate continuously from the upper surface of the decorative material base 1 to the side surface of the end portion. That is, in the case of the first decorative member, it extends from the upper surface of the decorative material base 1 to the inner surface of the surface concave groove portion 2. In this case, in the decorative base material 1, it is necessary to design the gap d of the gap 5 of the seam in the fitting connection construction state of the first decorative member in consideration of the thickness of the laminated decorative sheet. .

  When the decorative sheet laminated on the surface of the decorative material base material 1 is extended and laminated to the concave and convex portions of the fitting portions at both ends of the decorative material base material 1, the tension and flatness of the decorative material base material 1 as a whole are increased. It can be adjusted, and this also has the effect of enhancing the hinge property of the fitting portion.

It is explanatory drawing of the side cross section which shows embodiment of the 1st decorative member in this invention. It is explanatory drawing of the side cross section which shows embodiment of the 2nd decorative member in this invention. It is explanatory drawing of the side cross section which shows the structure of the connection part of the 1st decorative member in this invention, and a 2nd decorative member. It is explanatory drawing of the side cross section which shows the construction structure of the 1st decorative member of this invention, and a 2nd decorative member.

Explanation of symbols

A ... 1st decorative member B ... 2nd decorative member 1 ... Cosmetic material base material 2 ... Concave groove part 3 ... End part 4 ... Outer surface part 5 ... Gap

Claims (2)

  A first decorative member provided with concave grooves of substantially the same line shape on both short sides of a substantially rectangular plate-like body from the center of both short sides toward the center of the plate-like member; and the first decorative member And approximately twice as long as the depth of the recessed groove portion that can be fitted into the two recessed groove portions when the two first decorative members are aligned on both short sides thereof, A construction structure for a decorative material, comprising a combination of a second decorative member made of a substantially rectangular plate-like body having the same width.   The decorative material according to claim 1, wherein the second decorative member is made of a thermoplastic resin having an initial flexural modulus of 800 MPa or less.

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