JP2007224523A - Connecting-assembling decorative material - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a decorative material for improving inconvenience on an appearance or a physical property, by preventing thrusting-up and a mesh clearance of a base material, in the decorative material having a shape structure easy in the connection and construction. <P>SOLUTION: This decorative material has respectively engaging projections 3a and 3b on both inside and outside of a tip part of an outer end projection 3 constituting a surface recessed groove part 2 of one decorative material (p), an engaging projection 3c in a root part of the outer projection part 3, an engaging projection 5a inside of a tip part of an outer end projection part 5 constituting a reverse surface recessed groove part 4 and an engaging projection 6 separately opposed to the engaging projection 5a on the base material 1 side of the reverse surface recessed groove part 4, in the groove direction of the surface-reverse recessed groove parts 2 and 4. The outer end projection part 5 constituting the reverse surface recessed groove part 4 of the other one decorative material (p) is fitted from above in the surface recessed groove part 2 of the decorative material (p). The outer end projection part 3 constituting the surface recessed groove part 2 of the one decorative material (p) is inserted into and fitted to the reverse surface recessed groove part 4 of the other one decorative material (p), and is respectively locked by engaging projections 3a, 3b, 3c, 5a and 6, and two or more of a plurality of decorative materials are installed in a planar shape. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a decorative material used for a surface material of a building interior material such as a flooring material, a wall material, and a ceiling material, and particularly relates to a decorative material for connecting assembly having a shape structure that can be easily constructed by connecting assembly.

  Conventionally, as a decorative material for the above-mentioned various uses, a decorative base paper, a decorative sheet, or the like that has been printed on a natural veneer, paper, or synthetic resin sheet is bonded to a woody base material such as plywood or fiberboard. Many things are used.

  When using these decorative materials as surface materials for building interior materials such as floor materials, wall materials, and ceiling materials, floor surfaces (floor structure material surfaces), wall surfaces (wall structure material surfaces), and ceiling surfaces (ceiling structures) A plurality of decorative materials are arranged flat one by one so as to be in contact with the material surface, and the end portions of the decorative materials are sequentially fitted to each other so as to be connected and fixed.

  In the laying method by the conventional connection construction of such a decorative material, as shown in the side view of FIG. 4 (a), a concave portion 1a is appropriately provided at one end of the decorative material p formed by the base material 1, On the other end facing it, each is provided with a convex portion 1b that can be fitted into the concave portion 1a. As shown in the side view of FIG. The concave portion 1a and the convex portion 1b at the other end are abutted sequentially from the side in the lateral direction in the direction of the arrow, and the concave portion 1a and the convex portion 1b are fitted to each other so as to be connected and fixed and spread. I was doing.

  Therefore, when connecting a plurality of decorative materials by fitting, as shown in FIG. 4 (b), the decorative material is abutted in the direction of the arrow from the lateral direction to the convex portion 1b and the concave portion 1a. The convex portion 1b and the concave portion 1a are generally closely fitted because the fitting portion does not have a locking mechanism because the fitting portion 1b needs to be sequentially inserted into the concave portion 1a. In many cases, it was necessary to insert it by striking from the side, and it took time and labor for the construction. Furthermore, in order to fix so that it may not loosen after construction, it was necessary to nail and fix the fitting portion.

  Also, if the decorative material or the construction material on the laying surface is damaged or dirty due to the passage of time after construction, it will be necessary to remove and replace part of the decorative material. Since the unevenness of the connection fitting part of p is arranged horizontally with respect to the laying structure surface such as the floor surface, it is difficult to remove, the fitting part cannot be lifted up and removed, and the fitting part is cut with a saw or the like Otherwise, it was not possible to remove and replace only a portion of the cosmetic material. Similarly, if the decorative material to be replaced is not cut in the same manner, the decorative material cannot be fitted and laid in the part from which the decorative material is removed, and the nail is removed from the place where the decorative material is fixed by nailing. Work was necessary.

  Therefore, the present inventors have already proposed a decorative material having a shape structure that can be easily constructed by connection assembly without requiring relatively skill (see Patent Document 1).

  This decorative material can fit the outer end convex part which constitutes the back groove part of the other one cosmetic material from the upper part in the front groove part of one decorative material (or decorative board), and the above-mentioned The outer end convex portion constituting the surface groove portion of one decorative material is closely inserted and fitted into the rear groove portion of the other decorative material, and the outer end of the single decorative material The inner surface of the front end portion of the convex portion at the front surface groove portion and the inner surface of the outer end convex portion of the other piece of decorative material on the inner surface of the rear surface groove portion side can be locked and connected with each other. By devising such a joint shape, interior workability and construction efficiency of floor materials, wall materials and ceiling materials can be greatly improved.

  In addition, since this decorative material has a structure in which the concave and convex fitting direction between the front and back concave grooves and the outer end convex portion for connecting the end portions thereof is perpendicular to the laying surface, Construction can be carried out sequentially by simply fitting the side edge fitting part of the next decorative material from above onto the side edge fitting part of the decorative material arranged on the laying surface, and the workability and construction efficiency can be greatly improved.

  However, as a result of the subsequent trial production, it has been found that the above-described decorative material also needs the following improvements. That is, when a thermoplastic resin such as polypropylene is used as a main material for the base material of the decorative material, there is a problem that the applied decorative material is pushed up and looked due to thermal expansion and contraction of the base material. .

  In addition, due to the characteristic shape of the decorative material, for example, appearance defects such as sink marks on the surface of the base material, and problems due to stress applied to the fitting portion when fitting perpendicularly to the laying surface was there.

The known literature relating to the present invention is described below.
JP 2003-97011 A

  The present invention has been made in order to solve the above-described problems, and is a decorative material having a shape and structure that can be easily connected and constructed without requiring a relatively high level of skill. It is an object of the present invention to provide a cosmetic material that prevents push-up and deformation due to deformation and improves the appearance and physical properties concerned.

  As a result of intensive studies on a method for solving the above problems, the present inventors have found that the above problems can be solved by newly devising and improving the fitting shape of the decorative material, resulting in the present invention.

In the invention according to claim 1 of the present invention, the surface groove portion is linearly formed on the base material surface at one end portion and the back surface of the base material at the other end portion along both opposing ends of the decorative material base material. And a back surface groove portion, and a decorative material for connecting and connecting a plurality of decorative materials in a planar shape by combining a front surface groove portion of one decorative material and a back surface groove portion of another decorative material Because
Engagement protrusions 3a and 3b on both inner and outer ends of the outer end convex part 3 constituting the front surface groove part 2 of the single decorative material p, an engagement protrusion 3c on the base part of the outer convex part 3, and a rear surface The front and back surfaces of the engagement protrusion 5a on the inner side of the front end portion of the outer end convex part 5 constituting the concave groove part 4 and the engagement protrusion 6 spaced apart from the engagement protrusion 5a on the substrate 1 side of the rear concave groove part 4, respectively. A width w1 between the engaging protrusions 3a and 3b of the outer end convex part 3 constituting the surface concave groove part 2 and the engagement of the rear concave groove part 4 facing each other provided along the groove direction of the concave groove parts 2 and 4. The relation between the facing protrusions w2 of the mating projections 5a and 6 is w1> w2, and the rear groove portion 4 of the other decorative material p is formed in the front groove portion 2 of the decorative material p from above. The outer-end convex part 3 which fits the outer-end convex part 5 and comprises the surface concave-groove part 2 of the said one decorative material p is used as the back-side concave groove of the said other one decorative material p. 4 is inserted and fitted into each other, and is locked by the engaging protrusions 3a, 3b, 3c, 5a, and 6, respectively. It is a decorative material for connecting and assembling.

The invention according to claim 2 of the present invention is a connecting and assembling decorative material according to claim 1, wherein the width w3 of the outer end convex part 3 constituting the surface concave groove part 2 of the single decorative material p is The relationship between the opposing groove w2 of the engaging projections 5a, 6 facing each other in the back groove 4 of the other decorative material p is w2−w3> 0, and the surface groove 2 is formed. The engaging protrusions 5a of the outer end convex part 3 having the width w3 and the rear concave groove part 4 facing each other when the outer end convex part 3 to be fitted into the rear concave groove part 4 are fitted.
6 is a connecting and assembling decorative material characterized in that it is dimensionally designed to ensure predetermined clearances d2 and d3.

  The invention according to claim 3 of the present invention is the decorative material for connection assembly according to claim 1 or 2, wherein the outer end convex part 3 constituting the surface concave groove part 2 of the single decorative material p is provided. A predetermined clearance d4 is provided between the front end surface of the outer-end convex portion 3 and the groove bottom surface of the rear-side concave groove portion 4 when fitted into the rear-side concave groove portion 4 of the other decorative material p. It is the decorative material for connection assembly characterized by having a dimension design that can be secured.

  The invention according to claim 4 of the present invention is the decorative material for connection assembly according to any one of claims 1 to 3, wherein the surface concave portion is defined when the thickness of the decorative material base 1 is t. In the grooved portion 2, the curvature radius R of the groove inner bottom corner surface 2a on the base material 1 side satisfies a relationship of 0.15 × t to 0.35 × t.

  The invention according to claim 5 of the present invention is the connecting / assembling decorative material according to any one of the first to fourth aspects, wherein the thickness of the decorative material base material 1 is t. In the concave groove portion 4, the curvature radius R of the groove inner bottom corner surface 4a on the base material 1 side satisfies 0.35 × t to 0.5 × t.

  The invention according to claim 6 of the present invention is the decorative material for connection assembly according to any one of claims 1 to 5, wherein the decorative material base 1 is made of a thermoplastic resin. It is a cosmetic for connecting and assembling.

  The invention according to claim 7 of the present invention is the decorative material for connection assembly according to the above-mentioned claim 6, wherein the thermoplastic resin is a polyolefin resin.

  The invention according to claim 8 of the present invention is the decorative material for connecting and assembling according to any one of claims 1 to 7, wherein the decorative material base 1 is entirely or partially covered with wood powder or the like. A cosmetic for connecting and assembling, characterized in that it contains a wood filler.

  The invention according to claim 9 of the present invention is the connecting / assembling decorative material according to any one of claims 1 to 8, wherein the entire or part of the decorative material base material 1 is foamed. It is the decorative material for connection assembly characterized by this.

  The invention according to claim 10 of the present invention is the connecting / assembling decorative material according to any one of claims 1 to 9, wherein a decorative sheet is laminated and adhered to the surface of the decorative material base 1. It is the cosmetic material for connection assembly characterized by having.

  The invention according to claim 11 of the present invention is the decorative material for connection assembly according to claim 10, wherein a decorative sheet made of a thermoplastic resin is laminated and adhered to the surface of the decorative sheet. This is a connecting and assembling decorative material.

According to the invention according to claim 1, the decorative material for connecting and assembling of the present invention is provided in the front groove portion of one decorative material (or decorative plate) in the groove portion on the back surface of another decorative material from above. Can be fitted into the outer end convex portion, and the outer end convex portion constituting the front surface groove portion of the one decorative material is closely inserted into the rear groove portion of the other decorative material. And the inner surface of the front end portion of the outer end convex portion of the one decorative material on the surface groove side and the inner surface of the rear end portion of the other end of the decorative material on the back groove portion side, respectively. By locking with a plurality of engaging projections provided, two or more decorative materials (or decorative plates) can be connected in a flat shape and assembled as a flooring, wall material, ceiling material, etc. .

  And the decorative material for connecting and assembling of the present invention can be used for flooring, wall materials, ceiling materials, etc. by devising the joint shape of the engaging protrusion in such connection and assembly and setting the clearance by the engaging protrusion. It has the effect of greatly improving interior workability and construction efficiency.

  The connecting / assembling decorative material according to the present invention is provided with the above-described engaging protrusions, so that, for example, when the installer engages and assembles a plurality of decorative materials, for example, the user feels a click (tactile sense). (Sound may be generated as a clicking sound), and the installer can easily determine whether the fitting and engagement of the decorative materials are complete or incomplete It can be done.

  Furthermore, since the engagement protrusion in the present invention has a structure that can be locked, fixing by nail driving as in the prior art is unnecessary, and there is an effect that the workability and work efficiency can be greatly improved.

  Thus, the decorative material of the present invention has a structure in which the concave and convex fitting direction between the front and back concave grooves and the outer end convex portion for connecting the end portions is perpendicular to the laying surface. When doing this, it can be installed in sequence by simply fitting the side edge fitting part of the next decorative material from the top onto the side edge fitting part of the decorative material already arranged on the laying surface, greatly improving workability and construction efficiency. There is an effect that can be improved.

  In addition, since the decorative material of the present invention has a structure in which the concave and convex fitting direction is perpendicular to the laying surface, the decorative material and the structural material of the laying surface were scratched or soiled over the years after construction. In this case, you can easily remove and replace a part of the makeup material that is laid down, insert a spatula into the gap at the edge of the makeup material, lift the edge of the makeup material, and release the fit. It is possible to easily remove and replace only the material, and the newly replaced decorative material can be easily fitted and connected simply by pressing the end of the decorative material against the end of another decorative material from above. And has the effect of significantly improving the construction efficiency.

  In addition, since the fitting portion of the decorative material of the present invention has a concavo-convex shape and thickness, and has a structure that can be locked and provided with an engagement protrusion so that it is not easily removed in daily life use, Fixing by nailing is not necessary, and this has the effect of significantly improving the workability and work efficiency.

  According to the second aspect of the present invention, when the outer end convex portion 3 constituting the surface concave groove portion 2 is fitted into the rear concave groove portion 4, the outer end convex portion 3 having a width w3 Since the design is such that predetermined clearances d2 and d3 can be ensured between the engaging projections 5a and 6 facing each other on the back surface recessed groove portion 4, the surface recessed groove portions respectively provided at both ends of the decorative material. And the concave and convex fitting parts by the concave groove part of the back surface and those outer end convex parts are set with a predetermined clearance, and even if the substrate size changes due to temperature change after connecting assembly construction, there is no thrust or gap There is an effect that does not occur.

  According to the third aspect of the present invention, the outer end convex portion 3 constituting the surface concave groove portion 2 of the one decorative material p is placed in the rear concave groove portion 4 of the other decorative material p. When fitted, the dimensions are such that a predetermined clearance d4 can be secured between the front end surface of the outer end convex portion 3 and the groove bottom surface of the back surface concave groove portion 4 when fitted. Moreover, there is an effect of preventing the phenomenon that the outer end convex portion constituting the front surface groove portion pushes up the back surface groove portion of the other decorative material p facing the upper surface.

According to the present invention, when the thickness of the decorative material base material 1 is t, the curvature radius R of the groove inner bottom corner surface 2a on the base material 1 side in the surface concave groove portion 2 is set. Satisfying 0.15 × t to 0.35 × t, the physical strength of the surface groove portion is improved, and the neck bending phenomenon (fitting end portion due to the stress applied to the surface groove portion during fitting) There is an effect to prevent breakage).

  According to the invention according to claim 5, when the thickness of the decorative material base material 1 is t, the curvature radius R of the groove inner bottom corner surface 4 a on the base material 1 side in the back surface concave groove portion 4 in the back surface groove portion 4. Satisfies 0.35 × t to 0.5 × t, and therefore has an effect of preventing appearance defects due to sink marks or the like on the surface of the decorative material.

  According to the invention according to claim 6, since the decorative base material 1 to be used is made of a thermoplastic resin, moderate elasticity can be obtained, thereby facilitating fitting and fixing, and fitting. In the combined state, there is an effect that the fitting cannot be easily removed due to an external force during use.

  According to the present invention, since the thermoplastic resin used for the decorative material base material 1 is a polyolefin-based resin according to the invention according to the seventh aspect, the decorative material is inexpensive, excellent in productivity, and has a fitting portion hinge property. There is an effect that can provide.

  According to the invention according to claim 8 of the present invention, the whole or a part of the decorative material base material 1 contains a wood-based filler such as wood powder, thereby comparing with a decorative material made of a resin alone. There is an effect that the amount of thermal deformation is suppressed. In addition, the improved machinability has an effect that it can be easily cut and removed with a cutting edge such as a cutter even when the fitting portion is difficult to open during repair and replacement.

  According to the invention according to claim 9, the present invention has the effect of reducing the weight of the cosmetic material by foaming the whole or a part of the decorative material base material 1 and providing an appropriate cushioning property. is there.

  In the present invention, the decorative sheet is laminated and bonded to the surface of the decorative material base 1 according to the invention according to the tenth aspect, so that there is an effect that high decorativeness can be imparted to the decorative material.

  According to the invention of claim 11, the present invention provides a decorative sheet (second sheet) made of a thermoplastic resin on the surface of the decorative sheet (first decorative sheet) laminated and adhered to the surface of the decorative material base 1. If the thermoplastic resin of the first decorative sheet on the surface of the decorative material base material 1 is a thermoplastic resin, the laminated material of the decorative material (decorative plate) is all Since it is composed of a thermoplastic resin (for example, a polyolefin-based resin), there is no need for separation (separation) between the decorative material base 1 and the decorative sheet on the surface, and there is an effect that it can be easily recycled.

  An embodiment of a connecting / assembling decorative material (or decorative board) according to claim 1 of the present invention includes a side view of one decorative material p in FIG. 1 (a) and a plurality of decorative materials in FIG. 1 (b). A detailed description will be given below according to a side view showing a state where the decorative material p is connected and assembled, and a partially enlarged side view of FIG.

  As shown in the drawing, the decorative material p has a linear surface groove 2 formed on the surface of the base material at one end along the opposite ends of the base material 1 for the decorative material, and the other end. On the back surface of the substrate 1, a linear back surface groove portion 4 parallel to the front surface groove portion 2 is formed.

  The surface concave groove portion 2 formed along one end portion of the plate-like base material 1 is configured by forming an upward outer end convex portion 3 at an edge of the one end portion.

In the present invention, as shown in the drawing, the shape of the outer end convex portion 3 is characteristic, and engaging projections 3 a and 3 b are provided on both sides of the tip end portion of the outer end convex portion 3. Similarly, the base portion (the base end portion of the distal end portion, the intermediate portion, and the base end portion) of the outer end convex portion 3 is similarly provided with an engaging protrusion 3c. By providing the engagement protrusion 3c at the root portion, it is possible to suppress or prevent the play (the change in the connection shape) of the decorative material p (base material 1) during fitting.

  Moreover, the said back surface ditch | groove part 4 formed along the other end edge of the plate-shaped said base material 1 forms the downward outer edge convex part 5 in the edge of an other side edge part so that it may show in figure. It is constituted by.

  Engagement protrusions are provided on the inner surface 5a of the tip portion of the downward-facing outer end convex portion and the substrate-side inner surface 6 of the rear groove portion.

  This decorative material p is obtained by combining the front surface groove portion 2 of the base material 1 constituting one piece of the decorative material p and the back surface groove portion 4 of the base material 1 constituting the other piece of decorative material. A sheet or a plurality of decorative materials p are sequentially assembled into a planar shape and connected.

  FIG. 1B is a side view of a decorative material in which two or more decorative materials p are sequentially assembled and connected in a planar shape, and FIG. 2 is an enlarged side view of the connecting portion. On both sides of the front end portion of the outer end convex portion 3 of the decorative material, and on the inner surface on the back groove portion 4 side and the inner surface on the base material side of the rear groove portion on the front end portion of the outer end convex portion 5 of the other decorative material Are provided with engaging projections 3a, 3b, 5a, 6 that engage with each other by a concave-convex fitting method.

  In the connecting and assembling decorative material of the present invention, as shown in FIG. 2, the width between the engaging protrusions 3a and 3b of the outer end convex part 3 constituting the surface concave groove part 2 is w1, and the back concave groove part 4 is formed. When the facing distance between the engaging protrusions 5a and 6 facing each other is w2, the relationship is w1> w2.

  And in the surface ditch | groove part 2 of the decorative material p, while fitting the outer end convex part 5 which comprises the back surface ditch | groove part 4 of the other one decorative material p from the upper direction, the said one decorative material The outer-end convex part 3 which comprises the surface groove part 2 of p is inserted and fitted in the back surface groove part 4 of said other one piece of decorative material p, and engagement protrusion 3a, 3b, 3c, 5a, 6 is each fitted. And the two or more sheets of the decorative material p are assembled in a planar shape so that they can be connected to each other.

  Further, in the connecting and assembling decorative material of the present invention, as shown in FIG. 2, the width w3 of the outer end convex portion 3 constituting the surface concave groove portion 2 of the single decorative material p, and the other one sheet The relationship between the opposing spacing w2 of the engaging protrusions 5a, 6 facing each other in the back surface recessed groove portion 4 of the decorative material p is w2−w3> 0.

  When the outer end convex portion 3 constituting the front surface concave groove portion 2 is fitted into the back surface concave groove portion 4, the outer end convex portion 3 having the width w3 and the rear surface concave groove portion 4 face each other. The dimensional design is such that predetermined clearances d2 and d3 can be secured between the engaging projections 5a and 6.

  Moreover, in the decorative material for connection assembly of this invention, as shown in FIG. 2, the said outer end convex part 3 which comprises the surface ditch | groove part 2 of the said one decorative material p is made into another one decorative material. Dimensional design so that a predetermined clearance d4 can be secured between the front end surface of the outer-end convex portion 3 and the groove bottom surface of the rear-side concave groove portion 4 when fitted into the rear-side concave groove portion 4 of p. It is a thing.

  Moreover, in the decorative material for connection assembly of this invention, as shown in FIG. 2, when the thickness of the said cosmetic material base material 1 is set to t, the groove inner bottom by the side of the said base material 1 in the said surface ditch | groove part 2 is shown. The radius of curvature R of the square surface 2a satisfies 0.15 × t to 0.35 × t.

  Moreover, in the decorative material for connection assembly of this invention, as shown in FIG. 2, when the thickness of the said cosmetic material base material 1 is set to t, the groove inner bottom by the side of the said base material 1 in the said back surface recessed groove part 4 is shown. The radius of curvature R of the square face 4a satisfies 0.35 × t to 0.5 × t.

  The decorative material p of the present invention has another (different) decorative material p in the surface concave groove portion 2 at one end of the base material 1 of the decorative material p from the upper side to the lower side. The outer-end convex part 5 which comprises the back surface recessed groove part 4 of the base material 1 of this is fitted sequentially.

  And in the back surface ditch | groove part 4 of the base material 1 of the said other (other) one decorative material p, the surface ditch | groove part 2 of the base material 1 of the said one cosmetic material p is comprised from the downward | lower direction. The outer end convex part 3 to be inserted is inserted and fitted.

  At that time, as shown in FIG. 2, the engagement protrusions 3 a and 3 b of the outer end convex part 3, the engagement protrusion 5 a of the outer end convex part 5, and the engagement protrusion 6 on the substrate side inner surface of the back groove part are The joints p are held in engagement with each other, and once connected, the decorative material p can be disconnected if an external force is applied, but is simply not released.

  In the decorative material p of the present invention, as shown in FIG. 2, the outer end convexity of the surface concave groove portion 1 at one end in the engaging portion by the surface concave groove portion 2 at one end and the back surface concave groove portion 4 at the other end of the decorative material p, respectively. There are gaps of clearances d2 and d3 of a predetermined interval between the portion 3 and the opposing engaging projections 5a and 6 of the back-side groove 4 at the other end, and this gap absorbs changes in the substrate dimensions after construction. In addition, it is possible to solve problems such as push-ups and gaps between the decorative materials p.

  The clearances d2 and d3 in this one engaging portion can be set appropriately according to the material of the decorative material base 1 used for the decorative material p, and are dimensions resulting from the linear expansion coefficient in the operating temperature range. Can be set in response to changes.

  As shown in FIG. 1 (a), the decorative material p (base material 1) in a direction perpendicular to the straight line forming direction of the front and back concave grooves 2, 4 formed at both ends of the decorative material p (base material 1). When the dimension (the dimension between both end portions where the front and back concave grooves 2, 4 of the decorative material p are formed) is L, the clearance in the dimension L direction (d2) at one engaging portion of the decorative material p to be set + D3) is required to be approximately σ × Δt × L, where σ is the linear expansion coefficient and Δt is the variation temperature.

For example, when a plastic plate is used as the base material 1, the linear expansion coefficient σ of the base material 1 is 10 × 10 ⁻⁵ / ° C., and the straight line forming directions of the front and back concave grooves 2 and 4 formed on the base material 1. The dimension L of the base material 1 in the direction perpendicular to the surface (the dimension between both end portions where the front and back concave grooves 2, 4 of each decorative material p are formed) is 200 mm, and the operating temperature range (variable temperature Δt) is 0 ° C. to Assuming 50 ° C., the dimensional change of the base material 1 is 1 mm. Therefore, the clearances d2 and d3 set in that case may be about 1 mm each.

  Generally, when the dimension of the substrate 1 is L, the clearance (d2 + d3) in the dimension L direction is 0.8 × σ × Δt × L or more, 2 × σ × Δt × L or less, preferably 1.0. It is preferable to be not less than xσ × Δt × L and not more than 1.5 × σ × Δt × L.

  Further, in the engagement between one decorative material p and the other decorative material p of the present invention, as shown in FIG. 2, the side surface on the base material 1 side in the surface groove portion 2 of one decorative material p, A clearance d1 is provided between the outer surface of the outer end convex portion 5 of the back groove portion 4 of the other decorative material p facing the side surface.

Moreover, the outer end convex part 5 of the back surface concave groove part 4 in one end part of one decorative material p and the engagement protrusion 5a inside the tip thereof are moved upward into the surface concave groove part 2 of the other decorative material p connected thereto. In order to enable smooth insertion, the clearance d1 is suitably set to about 1.0 mm, for example.

  Also, when part of the decorative material p after laying is removed for replacement or the like, a tool such as a spatula is inserted into the clearance d1, and the end of the decorative material p is lifted and removed. . Or when it cannot remove with a spatula etc., it inserts the blade edge | tip of a cutter and is utilized in order to cut | disconnect the connection part of the decorative material p.

  For this reason, the clearance d1 is preferably 0.5 mm or more. However, when the clearance d1 exceeds 2.0 mm, the joint is conspicuous after connection construction, which is not preferable in terms of appearance. The clearance d1 is preferably 0.5 mm or more and 2.0 mm.

Further, in the present invention, a clearance d3 is provided, and the relationship between the clearances d1 and d3 is as follows:
d1 ≒ d3
Or
d3 ≤ d1
It is preferable to set to.

  In the decorative material p of the present invention, for example, a decorative sheet 11 is laminated on the surface of the decorative material substrate 1 as shown in the side sectional view of FIG. When the decorative sheet 11 is extended to the inner surface of the clearance d1 and laminated on the decorative material p, the clearance d2 is a value that takes into account the thickness t1 of the decorative sheet 11.

  Further, in the decorative material p of the present invention, as shown in FIG. 2, the tip of the outer end convex portion 3 constituting the surface concave groove portion 2 of one decorative material p and the other decorative material p facing the upper surface thereof. A clearance d4 is provided between the inner surface of the back-side recessed groove portion 4 and the back surface.

  By providing the clearance d4 corresponding to the up-and-down movement of the decorative plate, the outer-end convex part 3 constituting the front-side groove part 2 when fitted is the back-side groove part 4 of the other decorative material p facing the upper surface. The phenomenon of pushing up the inner surface of the film can be prevented. The clearance d4 is preferably 0.1 mm or more and 0.5 mm or less.

  In the decorative material p of the present invention, as shown in FIG. 2, it is preferable that the curvature radius R of the groove inner bottom corner portion 4a on the base body 1 main body side is large as the shape of the back surface recessed groove portion 4. Specifically, for example, when the thickness of the substrate 1 main body is t (mm), the radius of curvature R of the groove bottom corner 4a is preferably 0.35 × t to 0.5 × t (mm). . By setting a large R at the bottom corner portion 4a in the groove, it is possible to prevent appearance defects such as sink marks on the surface of the cosmetic material p due to the discontinuity of the shape of the base material 1 of the decorative material and the concave groove portion 4 on the back surface. can do.

  In the decorative material p of the present invention, as shown in FIG. 2, it is preferable that the curvature radius R of the groove bottom corner portion 2a on the base body 1 main body side is large as the shape of the surface concave groove portion 2. Specifically, for example, when the thickness of the substrate 1 body is t (mm), the radius of curvature R of the groove bottom corner 2a is preferably 0.15 × h to 0.35 × h (mm). . Since the appearance is the back surface of the base material 1, the appearance defect is not a big problem, but by taking a large R shape, the physical strength of the surface concave groove portion 2 is improved and during engagement (fitting). It becomes possible to prevent the neck-break phenomenon of the outer end convex part 3 resulting from the stress applied to the surface concave groove part 2.

As the base material 1 used for the decorative material p of the present invention, an injection molding method using a molten resin material,
It may be a resin molded body by a profile extrusion molding method, a mold casting method, or the like, or a heat-pressed resin molded body that press-molds a resin material using a heating press means, or a resin material that uses a cutting means It may be a resin molded body by a cutting method for cutting and molding.

  The decorative material base 1 of the decorative material for connecting and assembling p of the present invention can be manufactured using, for example, a thermoplastic resin material. The thermoplastic resin is not particularly limited, but a polyolefin resin such as polyethylene or polypropylene, an acrylic resin such as polystyrene resin, polyvinyl chloride or polymethyl methacrylate, a polyester resin such as polyethylene terephthalate, or a polyamide resin such as nylon. It can be appropriately selected from resins. In particular, in the present invention, polyolefin resins such as polyethylene and polypropylene can be suitably used.

  FIG. 3 is a side cross-sectional view for explaining the form of the decorative material p of the present invention. For example, the back surface of the decorative material p (the decorative material p surface in contact with the construction surface such as interior work) is bonded with an adhesive or an adhesive. The layer 21 is provided so that the decorative material p can be bonded and fixed to the construction surface in a planar connection and assembly.

  For example, as shown in FIG. 3, the base material 1 for a decorative material is obtained by dispersing a wooden filler 7 in a part or all of the layer of the resin-based substrate 1 mainly composed of a synthetic resin. At the same time that the wood texture is imparted to 1, the base material 1 for decorative material may be imparted with good cutting suitability similar to that of wood or wood. The average particle diameter and blending ratio of the wood filler are not particularly limited, but the average particle diameter is suitably, for example, 1 to 200 μm, and a part or all of the wood filler contains the wood filler. The blending ratio of the wood filler in the layer is suitably 10 to 500 parts by weight with respect to 100 parts by weight of the resin (for example, thermoplastic resin).

  Further, the base material 1 for decorative material may be a resin foam molded body or a wood resin foam molded body, and as shown in FIG. 3, foam is formed on a part or all of the resin base material 1 mainly composed of synthetic resin. It is elastic to the base material 1 (cushioning property) by forming a large number of bubbles 8 in the layer of the base material 1 by performing foaming processing by heat foaming, chemical foaming treatment, etc. Or you may make it give weight reduction. The expansion ratio of the base material 1 as the resin foam molded body or the woody resin foam molded body is suitably about 1.1 to 10.0 times from the viewpoint of appropriate cushioning properties as the decorative material p.

  As shown in FIG. 3, the decorative sheet 11 is colored such as paper or resin (or composite), colored, non-colored, or transparent and opaque on the surface of the base sheet 12, such as a wood grain design pattern or a decorative pattern. An ink layer 13 is applied, a transparent protective layer 14 (sheet, film, coating layer) is formed on the surface of the base sheet 12 from above the decorative picture ink layer 13, and a top coat layer 15 is formed on the transparent protective layer 14. After coating, an embossed portion 16 (uneven pattern) is appropriately formed on the surface as necessary. When the ink layer 13 is applied to the decorative sheet 11, it is preferably a wood grain design, and the decorative sheet 11 may be entirely transparent.

  Then, as shown in FIG. 4, on the surface of the base material 1 of the decorative material p (for example, when the adhesive layer 21 on the back surface of the base material 1 of the decorative material p is provided) By laminating the decorative sheet 11, the decorative material p of the present invention is completed.

Further, the base material 1 of the decorative material p of the present invention may be a resin molded body made of a thermoplastic resin, or a wooden resin molded body containing a thermoplastic resin and a wooden filler as required. However, a decorative sheet using, on the surface of the substrate 1 (molded body), a thermoplastic resin similar to the thermoplastic resin of the resin molded body or a substrate sheet 12 mainly composed of the thermoplastic resin. 11 is laminated, or a decorative sheet using a base sheet 12 mainly composed of a thermoplastic resin similar to the thermoplastic resin contained in the woody resin molded body is laminated.

(A) is a side view which shows embodiment of the decorative material of this invention, (b) is a side view explaining the joint construction of the decorative material of this invention. The expanded side view of the connection part of the decorative material of this invention. The typical sectional side view explaining the layer structure and lamination of a base material and a decorative sheet in the decorative material of the present invention. The side view explaining the connection construction of the conventional decorative material.

Explanation of symbols

p ... Cosmetic material 1 ... Base material (molded article)
DESCRIPTION OF SYMBOLS 2 ... Front groove part 3 ... Outer end convex part 4 ... Back surface concave groove part 5 ... Outer end convex part 7 ... Wood type filler 8 ... Bubble 11 ... Makeup sheet 12 ... Base material layer 13 ... Makeup picture layer 14 ... Transparent protective layer 15 ... Top coat layer 16 ... Embossed part

Claims (11)

One decorative piece is provided with a front surface groove portion and a back surface groove portion in a linear form on the base material surface at one end and the back surface of the base material at the other end along both opposite ends of the decorative material base material. By combining the front groove groove part of the material and the back groove groove part of the other one piece of decorative material, it is a decorative material for assembling and connecting a plurality of decorative materials in a plane shape,
Engagement protrusions 3a and 3b on both inner and outer ends of the outer end convex part 3 constituting the front surface groove part 2 of the single decorative material p, an engagement protrusion 3c on the base part of the outer convex part 3, and a rear surface The front and back surfaces of the engagement protrusion 5a on the inner side of the front end portion of the outer end convex part 5 constituting the concave groove part 4 and the engagement protrusion 6 spaced apart from the engagement protrusion 5a on the substrate 1 side of the rear concave groove part 4, respectively. A width w1 between the engaging protrusions 3a and 3b of the outer end convex part 3 constituting the surface concave groove part 2 and the engagement of the rear concave groove part 4 facing each other provided along the groove direction of the concave groove parts 2 and 4. The relation between the facing protrusions w2 of the mating projections 5a and 6 is w1> w2, and the rear groove portion 4 of the other decorative material p is formed in the front groove portion 2 of the decorative material p from above. The outer-end convex part 3 which fits the outer-end convex part 5 and comprises the surface concave-groove part 2 of the said one decorative material p is used as the back-side concave groove of the said other one decorative material p. 4 is inserted and fitted into each other, and is locked by the engaging protrusions 3a, 3b, 3c, 5a, and 6, respectively. A cosmetic material for connected assembly.   2. The decorative material for connecting and assembling according to claim 1, wherein the width w3 of the outer-end convex part 3 constituting the surface concave groove part 2 of the one decorative material p and the back surface concave part of the other decorative material p. The relationship between the engagement protrusions 5a and 6 facing each other in the groove portion 4 is w2−w3> 0, and the outer end protrusion portion 3 constituting the front surface groove portion 2 is replaced with the back surface groove portion 4. When fitted inside, the predetermined clearances d2 and d3 can be ensured between the engaging projections 5a and 6 of the outer end convex part 3 having the width w3 and the concave groove part 4 facing each other. A decorative material for connecting and assembling, characterized by a dimensional design.   It is the decorative material for connection assembly of Claim 1 or 2, Comprising: The said outer end convex part 3 which comprises the surface ditch | groove part 2 of the said 1 sheet of decorative material p is made into the back surface ditch | groove part of the other sheet of cosmetic material p. 4 has a dimensional design so that a predetermined clearance d4 can be secured between the front end surface of the outer end convex portion 3 and the groove bottom surface of the back surface concave groove portion 4 when fitted into the outer end convex portion 4. Cosmetics for connecting and assembling.   It is a decorative material for connection assembly of any one of Claims 1 thru | or 3, Comprising: When the thickness of the said cosmetic material base material 1 is set to t, in the groove | channel by the side of the said base material 1 in the said surface groove part 2 A joint assembly decorative material characterized in that the radius of curvature R of the bottom corner surface 2a satisfies 0.15 × t to 0.35 × t.   It is a decorative material for connection assembly of any one of Claims 1 thru | or 4, Comprising: When the thickness of the said cosmetic material base material 1 is set to t, in the groove | channel by the side of the said base material 1 in the said back surface recessed groove part 4 A joint assembly decorative material characterized in that the radius of curvature R of the bottom corner surface 4a satisfies 0.35 × t to 0.5 × t.   6. The connecting / assembling decorative material according to claim 1, wherein the decorative material base material 1 is made of a thermoplastic resin.   The connecting / assembling decorative material according to claim 6, wherein the thermoplastic resin is a polyolefin resin.   It is the decorative material for connection assembly of any one of Claims 1 thru | or 7, Comprising: The woody fillers, such as wood powder, are contained in the whole or a part of the said cosmetic material base material 1. Cosmetics for connecting and assembly.   The joint assembly decorative material according to any one of claims 1 to 8, wherein the cosmetic base material 1 is entirely or partially foamed.   10. The connecting / assembling decorative material according to any one of claims 1 to 9, wherein a decorative sheet is laminated and adhered to the surface of the decorative material base 1.   The decorative material for connection assembly according to claim 10, wherein a decorative sheet made of a thermoplastic resin is laminated and adhered to a surface of the decorative sheet.

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