JP5887306B2 - Wrapping decorative board - Google Patents

Description

  The present invention relates to a wrapping decorative board in which a sheet is integrally bonded to a plate-like substrate on its surface and peripheral side surfaces, and more particularly to a technique for improving the wrapping accuracy of a sheet with respect to the substrate.

  As this type of wrapping technology, conventionally, for example, as shown in Patent Document 1 and Patent Document 2, the sheet is cut into a size that can be wrapped on the base material and attached to the surface of the base material. Edges attached to the side surfaces facing the width direction of the base material, and side surfaces facing the length direction of the base material, at portions located at the corners of the two adjacent sides of the base material in the peripheral edge portion of the sheet 2. Description of the Related Art It is known that a notch for preventing an excessive portion overlapping with an edge to be attached to a sheet is formed, and then a peripheral edge of a sheet is attached to a side surface of a substrate.

JP 2008-87160 A JP 2008-87161 A

  However, in order to wrap the sheet on the surface of the base material and the side surface of the peripheral edge, the conventional techniques shown in Patent Documents 1 and 2 require the corner of the sheet with the sheet attached to the base material. Although the notch is formed, it is necessary to accurately form the notch in accordance with the base material. If the accuracy is low, the sheet may be displaced with respect to the base material, and the lapping may be inaccurate. . In addition to being inaccurate, an excessive portion of the sheet is generated when the sheet is displaced, and various problems are caused due to poor adhesion due to overlapping of the excessive portion.

  This invention is made | formed in view of such a point, The objective is to add a device to the wrapping structure of the sheet | seat with respect to a base material, and to enable it to wrap a sheet | seat correctly on a base material.

In order to achieve the above object, according to the present invention, the sheet is not bonded to the corner of the sheet so that an excess portion is generated, but the sheet is adhered to the surface of the substrate. with the periphery of the sheet is bent and those bonded to the base side, the excess portion of the two bent portions of the sheet generated in corners of the sides of the adjacent periphery two sides of the substrate, the back surface to each other The cut end face was exposed by cutting the decorative sheet layer .

Specifically, a wrapping decorative board according to a first aspect of the present invention includes a plate-like base material, and a decorative sheet layer made of a sheet bonded and integrated on the surface or peripheral side surface of the base material. Are provided with bent portions bonded to the peripheral side surfaces of the base material, and the corner portions of the two adjacent sides of the base material are the bases of the two bent portions of the decorative sheet layer on the two sides. Excess parts that protrude from the material are present in a state where they are overlapped with each other on the back side, and both excess parts have a cut end face exposed by cutting the decorative sheet layer on a portion closer to the base material, In the exposed state, the substrate extends parallel to each other in the thickness direction of the substrate along the corners of the substrate .

In the first invention, the wrapping decorative board includes a decorative sheet layer composed of a sheet bonded and integrated on the surface or peripheral side surface of the plate-like base material, and the peripheral surface of the decorative sheet layer is provided on the side surface of the base material. bent portion bonded are mounted on the corners of two adjacent sides of the base material, present in a state where both the bent portion excess portion of the two sides of the decorative sheet layers are overlapped on the rear surface between, This surplus portion has a cut end surface exposed by cutting the decorative sheet layer in a portion closer to the base material side, and these cut end surfaces are exposed in the thickness direction of the base material along the corners of the base material. They extend parallel to each other . Therefore, when wrapping a sheet on a base material, for example, in a state where the sheet is adhered to the surface of the base material with an adhesive, an edge corresponding to the side surface facing one side of the base material is provided among the peripheral portions of the sheet. Bend, bond the bent portion to the side surface of the base material, and in that state, fold the edge portion corresponding to the side surface facing the other side of the base material, of the peripheral edge portion of the sheet. By bonding to the side surface, an excess portion is formed in which the two folded portions of the decorative sheet layer on the two sides protrude from the base material at the corners of the two adjacent sides of the base material . Excess portion of the two bent portions, a state where the back surface to each other is superimposed, to each other by cleavage at the substrate side side portion, the substrate thickness direction along the corner portion of the substrate in the exposed state It has a cutting end surface extending in parallel.

A wrapping decorative board according to a second aspect of the present invention is a makeup comprising a plate-like base material in which a female fruit and a male fruit are formed on each side of the peripheral side surface, and a sheet bonded and integrated to the surface or the peripheral side surface of the base material. A female layer of the base material has a female real concave portion located on the back side or thickness direction intermediate portion of the base material, and a female real side surface adjacent to the front side of the female real concave portion, while the male fruit is The male convex part located in the back side or thickness direction intermediate part of a base material, and the male side face adjacent to the front side of this male convex part. And in the peripheral part of the said decorative sheet layer, the bending part adhere | attached on the female real side and the male real side of a base material is provided, and these two sides are provided in the corner | angular part of two adjacent sides of a base material. excess portion protruding from the base of both the bent portions of the decorative sheet layer is present in a state of being superimposed on the rear surface between both excess portion on the substrate side side portion, is decorative sheet layer is cut exposure The cut end faces extend in parallel with each other in the thickness direction of the base material along the corners of the base material in the exposed state .

In this second invention, the wrapping decorative board comprises a decorative sheet layer comprising a sheet integrally bonded to the surface or the peripheral side surface of a plate-like base material having a female fruit and a male fruit formed on the peripheral side surface thereof, A bent portion bonded to the female side surface and the male side surface of the base material is provided at the peripheral portion of the decorative sheet layer, and both corners of the two adjacent sides of the base material are provided on both sides of the two side decorative sheet layers. present in a state in which the excess portion of the bent portion is superimposed on the rear surface between, this excess portion on the substrate side side portion has a cutting edge which is exposed by cleavage of the decorative sheet layer, these cutting edge, exposed In this state, they extend parallel to each other in the thickness direction of the substrate along the corners of the substrate . Therefore, when wrapping a sheet on a base material, for example, in a state where the sheet is adhered to the surface of the base material with an adhesive, an edge corresponding to the side surface facing one side of the base material is provided among the peripheral portions of the sheet. Bend, bond the bent part to the female side and male side, and in that state, bend the edge corresponding to the side facing the other side of the base material of the peripheral edge of the sheet, By adhering to the female side surface and the male side surface, an excess portion is formed in which the two bent portions of the decorative sheet layer on the two sides protrude from the base material at the corners on the two adjacent sides of the base material. The Excess portion of the two bent portions, a state where the back surface to each other is superimposed, to each other by cleavage at the substrate side side portion, the substrate thickness direction along the corner portion of the substrate in the exposed state It has a cutting end surface extending in parallel.

According to these 1st and 2nd invention, in the state which adhered the sheet | seat to the surface of the base material in this way, both the bending parts of the decorative sheet layer of 2 sides are in the corner part of 2 sides which a base material adjoins. protruding from the substrate and has the back surface to each other is formed excess portion superimposed, surplus portions of that is, the cut end surface which is the parallel extending exposed to each other along the corners to the substrate thickness direction of the base since a wrapping veneer, becomes the sheet without deviating to the substrate, and is just enough accurately lapping.

  According to a third invention, in the second invention, the base material is made of a rectangular plate, and the bent portion of the decorative sheet layer bonded to at least the end side surface facing the length direction of the base material is a female of the base material. It extends to the female side surface and the male side surface so as not to reach the front side inner surface of the real concave portion and the front side outer surface of the male convex portion.

In this 3rd invention, the bending part of the decorative sheet layer adhere | attached on the end side surface which opposes the length direction of a base material does not reach | attain the front side inner surface of a female real recessed part and the front side outer surface of a male convex part of a base material So, when forming the cut end face in the surplus part of the two corners of the adjacent side, with the surplus part of the two folded parts of the decorative sheet layer on the two sides overlapped and joined to each other The corner portion may be cut with a single line, and a special blade is not required for cutting, which is preferable.

According to a fourth aspect of the present invention, in any one of the first to third aspects, the surplus portion having the cut end surface is softened by heating and is adapted along the outer surface of the substrate.

In this 4th invention, since the surplus part which has a cut end face is heated and softened, it is accustomed so that it may follow an outer surface of a base material, Therefore The surplus part is made not conspicuous and the appearance appearance of a wrapping decorative board is improved. Can do.

  According to a fifth invention, in any one of the first to fourth inventions, the decorative sheet layer is integrally bonded to the substrate via a moisture-curable urethane resin hot melt adhesive (PUR hot melt adhesive). It is characterized by that.

  In the fifth aspect of the present invention, when the sheet is wrapped on the base material, after the sheet on the two opposite sides is pasted, the sheet on the other two sides is pasted. Before the melt adhesive is moisture-cured, the PUR hot melt adhesive to be attached later is warmed and remelted so that it can be easily wrapped and bonded.

As described above, according to the wrapping decorative board of the present invention, the decorative sheet layer in which the sheet is bonded and integrated is formed on the surface or the peripheral side surface of the plate-like base material, and the base material is formed on the periphery of the decorative sheet layer. A bent portion bonded to the side surface of the base material is provided, and at the corner portions of the two adjacent sides of the base material, surplus portions protruding from the base material of the two bent portions of the decorative sheet layer on the two sides are back to back By providing in an overlapped state, the surplus portion has a cut end surface extending parallel to each other in the substrate thickness direction along the corner portion of the substrate in an exposed state at a portion closer to the substrate side The sheet can be accurately wrapped without shifting from the base material.

FIG. 1 is a perspective view of a wrapping decorative board according to Embodiment 1 of the present invention. FIG. 2 is an enlarged perspective view showing the cut portion. FIG. 3A is a plan view of the substrate, and FIG. 3B is a side view of the substrate. 4A and 4B are diagrams showing a process of adhering a sheet to the surface of the base material in the manufacturing process of the wrapping decorative board. FIG. 4A is a plan view and FIG. 4B is a side view. FIG. 5 shows a process of bending the side edge of the sheet and bonding it to the female side and the male side of the base on the side of the base, and the end side of the sheet bonded to the base FIG. 5A is a plan view, and FIG. 5B is a side view. FIG. 6 is a diagram showing a process of bending the end side edge portion of the cut sheet and bonding it to the female side surface and the male side surface of the male side on the end side surface of the substrate. A plan view and FIG. 6B are side views. FIG. 7 is a view showing a process of clamping and forming the protruding portion of the sheet formed at the corners of the two adjacent sides of the substrate, FIG. 7 (a) is a plan view, FIG. b) is a side view. 8A and 8B are diagrams showing a process of cutting out the protruding portion to form a cut-out portion. FIG. 8A is a plan view and FIG. 8B is a side view. FIG. 9 is a perspective view schematically showing a bending press mechanism. FIG. 10 is a diagram illustrating a state in which the bending jig of the bending press mechanism bends and presses the edge of the sheet. FIG. 11 is a perspective view schematically showing the clamp mechanism. FIG. 12 is a perspective view schematically showing a corner cut mechanism. FIG. 13 is a plan view schematically showing the corner portion forming mechanism. FIG. 14 is a perspective view of a wrapping decorative board according to the second embodiment.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. The following description of the preferred embodiments is merely exemplary in nature and is in no way intended to limit the invention, its application, or its application.

(Embodiment 1)
FIG. 1 shows a wrapping decorative board A according to Embodiment 1 of the present invention, and this decorative board A is used as a flooring or the like, for example. The wrapping decorative board A is a decorative sheet layer comprising a plate-like base material 1 and a sheet 20 'bonded and integrated to the surface 1a or the surrounding side faces 1b, 1b, 1c, 1c of the base material 1 with an adhesive. 20.

  As the adhesive, for example, a moisture curable urethane resin hot melt adhesive (PUR hot melt adhesive) is used. Thus, by using the moisture curable urethane resin hot melt adhesive, the sheet 20 ′ can be easily wrapped and bonded to the substrate 1. It is also possible to use an adhesive other than the moisture curable urethane resin hot melt adhesive.

  Plywood, MDF, or the like is preferably used for the substrate 1. Alternatively, other woody materials such as particle board and hard board, and inorganic plate materials such as trade name “Dailite” manufactured by Daiken Kogyo Co., Ltd. are used. For example, the thickness is 15 mm. And a rectangular plate having a width of 303 mm and a length of 1818 mm.

  As shown in FIG. 3, the surface 1a of the substrate 1 is a decorative surface, and the corners of the surface 1a and the surrounding side surfaces 1b, 1b, 1c, 1c are inclined (or arcuate) at the corners. A cut-out chamfered portion 2 is formed.

  A female fruit 4 or a male fruit 12 is formed on each side of the peripheral side surfaces 1b, 1b, 1c, and 1c of the substrate 1. Specifically, a female fruit 4 is formed on one of the side surfaces 1b and 1b facing the width direction of the base material 1, and a male fruit 12 that can be fitted to the female fruit 4 is formed on the other side. Further, a female fruit 4 is formed on one of the end side surfaces 1c, 1c facing the length direction of the base material 1, and a male fruit 12 that can be fitted to the female fruit 4 is formed on the other side. 4, by fitting the male and female 12 of the adjacent decorative plate A (base material 1), both decorative plates A and A are arranged and applied.

  The female berries 4 and 4 of the side side surface 1b and the end side surface 1c have the same structure, and are positioned at the intermediate portion in the thickness direction of the base material 1 by cutting out the intermediate portion in the thickness direction of the base material 1 into a concave groove shape. The front and back sides of the female concave portion 5 are respectively provided with front and rear female convex ridges 6 and 7 formed by cutting out the female concave portion 5. The protruding length of the female real ridge 7 is larger than that of the front female real ridge 6. Further, a female real side surface 8 that is continuous with the chamfered portion 2 is formed at the front end of the front female convex ridge 6, and the female real side surface 8 is adjacent to the front side of the female real concave portion 5. In addition, the female seed 4 may form the female real recessed part 5 located in the back side of the base material 1 by notching the back side part of the thickness direction of the base material 1, and in that case, the back side female real protrusion 7 There is no so-called consensus structure.

  On the other hand, the male bodies 12 and 12 of the side side surface 1b and the end side surface 1c have the same structure, and the thickness direction of the base material 1 is obtained by cutting out both the front and back side portions in the thickness direction of the base material 1 into a rectangular cross section. It has a male convex part 13 located in the middle part, and on the front and back sides of this male convex part 13, there are front and back male cut parts 14, 15 each consisting of a part where the male convex part 13 is cut out. For example, the notch depth of the rear male notch 15 is larger than that of the front male notch 14. In addition, a male side surface 16 that is continuous with the chamfered portion 2 is formed at the bottom of the front side male cutout portion 14, and the male side surface 16 is adjacent to the front side of the male convex portion 13. In addition, the male seed 12 may form the male convex part 13 located in the back side of the base material 1 by notching the front side part of the thickness direction of the base material 1, In that case, a back side male notch part It is a consensus structure with no 15.

  The sheet 20 ′ is made of, for example, a resin sheet made of polyvinyl chloride or polyolefin, and has a thickness of about 0.1 to 0.4 mm.

  Other than this, a thin sheet material such as a resin sheet such as polyethylene terephthalate, a decorative paper such as a coated paper or a resin-impregnated paper, a non-woven fabric, a woven fabric, a wooden thin veneer or a tatami surface can be used. The thickness may be determined in consideration of the wrapping equipment. For example, a paper having a thickness of about 0.05 to 0.3 mm and a wood thin decorative veneer having a thickness of about 0.15 to 0.30 mm are suitable. Used.

  Four bent portions 20a, 20a,... Located on the side side surfaces 1b, 1b and the end side surfaces 1c, 1c of the base material 1 are provided on the peripheral portion of the decorative sheet layer 20 made of the sheet 20 '. . Of these bent portions 20a, 20a,..., Each bent portion 20a located on the end side surface 1c of the base material 1 on which the female fruit 4 is formed is bonded to the female fruit side surface 8 of the female fruit 4, The front end portion located on the back side of the base material 1 extends to the vicinity of the front side inner surface 5 a on the female side surface 8 so as not to reach the front side inner surface 5 a of the female real recess 5. On the other hand, each bending part 20a located in the end side surface 1c of the base material 1 in which the male seed 12 is formed is bonded to the male side face 16 in the male seed 12 and a tip portion located on the back side of the base material 1 Is extended to the vicinity of the front outer surface 13a on the male side surface 16 so as not to reach the front outer surface 13a of the male convex portion 13.

  In addition, also on the side surface 1 b of the base material 1, each bent portion 20 a of the decorative sheet layer 20 is bonded to the female side surface 8 of the female seed 4, so that the tip portion does not reach the front side inner surface 5 a of the female real recess 5. The female side surface 8 extends to the vicinity of the front side inner surface 5 a, or the bent portion 20 a is bonded to the male side surface 16 of the male seed 12 so that the tip portion does not reach the front side outer surface 13 a of the male convex portion 13. Furthermore, the male side 16 may extend to the vicinity of the front outer surface 13a.

  Further, the corners of the side surface 1b and the end side surface 1c, which are adjacent two sides of the base material 1, are eaten from the base material 1 of the two folded portions 20a and 20a of the decorative sheet layer 20 on the two sides. An excision portion 21 is formed as a trace of excision by cutting and removing the surplus portion that has been cut out simultaneously (in an overlapping state). FIG. 2 exemplifies the corners of the male fruit 12 on the side surface 1b of the substrate 1 and the male fruit 12 on the end side surface 1c adjacent to the side surface 1b. As shown, when the peripheral portion of the sheet 20 'is bent at the side side surface 1b and the end side surface 1c of the substrate 1 and bonded to the side surface of the substrate 1, the side surface adjacent to the substrate 1 at the peripheral portion of the sheet 20' is shown. 1b and the surplus portions of the bent portions 20a 'and 20a' located on the end side surface 1c protrude from the base material 1 in a state where the back surfaces are overlapped with each other, and the protruding portion 21 '(see FIGS. 6 and 7). The cut-out portion 21 is formed by simultaneously cutting out the protruding portion 21 ′ composed of the two surplus portions at the intermediate position of the base material 1.

  And the said cut | disconnecting part 21 is familiar so that it may soften by heating and may follow the base material 1 outer surface.

  Next, the manufacturing method of the said wrapping decorative board A is demonstrated based on FIGS. This manufacturing method includes (1) actual processing step, (2) adhesive application step, (3) sheet surface bonding step, (4) first sheet bonding step, (5) sheet cutting step, and (6) second sheet. A bonding step, (7) surplus portion clamping step, (8) surplus portion cutting step, and (9) corner portion forming step.

(1) Actual processing step In the actual processing step, the female seed 4 and the male seed 12 are processed into the side side surfaces 1b and 1b and the end side surfaces 1c and 1c around the substrate 1.

(2) Adhesive application step In the adhesive application step, an adhesive (moisture curable urethane resin hot melt adhesive) is applied to the back surface of the sheet 20 '. The adhesive may be applied to the front surface 1a and the side surfaces 1b and 1c of the substrate 1 instead of being applied to the back surface of the sheet 20 '.

  The sheet 20 ′ is wound, for example, on a roll or the like, and is continuously fed out from the roll or the like, and supplied in advance. The corresponding reference width may be set, or may be larger than the reference width. Specifically, the reference width of the sheet 20 ′ is such that the sheet 20 ′ is lapped with the base material 1 in the same width direction, and the bent portion 20 a is formed in the later-described (4) first sheet bonding step. At this time, the width of the bent portion 20a is such that the tip of the bent side portion 20a does not reach the front side inner surface 5a of the female real concave portion 5 and the front side outer surface 13a of the male convex portion 13 on the side side surfaces 1b and 1b of the substrate 1. FIG. 4A shows a sheet 20 ′ having a reference width.

(3) Sheet surface bonding step In the sheet surface bonding step, the sheet 20 'is bonded to the surface 1a of the substrate 1 with an adhesive, as shown in FIGS. 4 (a) and 4 (b). At this time, the sheet 20 ′ and the base material 1 are accurately aligned and bonded in the width direction.

(4) 1st sheet adhesion process (side lamination)
In the first sheet adhering step, as shown in FIGS. 5A and 5B, both edges in the width direction of the sheet 20 ′ are bent, so that the female 4 of the female body 4 on the side side surfaces 1b and 1b of the substrate 1 is bent. Bending portions are formed at the peripheral edge portions of the decorative sheet layer 20 located on the side side surfaces 1b and 1b of the base material 1 by applying pressure to the real side surface 8 and the male side surface 16 of the male fruit 12 and solidifying the adhesive. 20a and 20a are formed.

  Specifically, a bending press mechanism 24 shown in FIG. 9 is used in the first sheet bonding step. The folding press mechanism 24 is for pressurizing and bonding the edge of the sheet 20 ′ to the substrate 1, a bending jig 25 for bending the edge of the sheet 20 ′ along the substrate 1, A heater plate 26 made of an electric heater or the like that heats the bending jig 25 from the back side, and the bending jig 25 directly from the back side or a heater so that the edge of the sheet 20 'is pressed against the side surface of the substrate 1 And a pressurizing plate 27 for pressurizing with the plate 26 interposed therebetween. The bending jig 25 and the heater plate 26 are arranged to be movable up and down at the peripheral edge of the substrate 1 and are moved up and down independently of each other by a lift drive actuator (not shown). As shown in FIG. 10, the bending jig 25 is a bending pressure surface having a shape along the female side surface 8 of the female fruit 4 and the male side surface 16 of the male fruit 12 on the side side surface 1 b and the end side surface 1 c of the base material 1. 25a. Then, the folding jig 25 and the heater plate 26 move downward from the ascending position indicated by the phantom line in FIG. 10, so that the edge of the sheet 20 ′ is added to the folding jig 25 heated by the heater plate 26. The pressing surface 25 a is bent into a shape along the female side 4 of the female 4 and the male side 16 of the male 12 of the base 1.

  On the upper side of the bending pressure surface 25a of the bending jig 25, an inclined surface 25b inclined toward the center side of the base material 1 is continued upward, and the bending jig 25 is bent by this inclined surface 25b. Sometimes it is configured not to contact the sheet 20 ′ with a gap from the sheet 20 ′ on the surface 1 a including the chamfered portion 2 of the substrate 1. By doing so, the folding jig 25 is not pressed against the sheet 20 'on the surface 1a of the base material 1 during folding, and no trace of the folding jig 25 remains on the decorative sheet layer 20 on the surface 1a, so that wrapping is performed. The appearance of the decorative board A can be enhanced.

  The pressure plate 27 is disposed on the back side (the side away from the base material 1) of the bending jig 25 and the heater plate 26, and advances and retreats to and from the base material 1 by a pressure drive actuator (not shown). The edge of the sheet 20 ′ is pressed toward the base material 1 by the approaching forward movement. Specifically, the pressure plate 27 has two modes: a state where the heater plate 26 is lowered and positioned on the back side of the bending jig 25, and a state where the heater plate 26 is raised and not positioned on the back side of the bending jig 25. When the heater plate 26 descends and is positioned on the back side of the bending jig 25, the edge of the sheet 20 'is bent by the bending jig 25 heated by the heater plate 26. With the pressure plate 27 moving forward, the bending jig 25 is pressed together with the heater plate 26 so that the edge of the sheet 20 'is pressed against the substrate 1, and the adhesive is re-applied to the back surface of the sheet 20'. Perform hot press operation to activate (remelt). On the other hand, when the heater plate 26 rises and is not positioned on the back side of the bending jig 25, the bending plate 25 not heated by the heater plate 26 is directly pressed by the advancement of the pressure plate 27, and the bending is performed. A cold press operation is performed in which the edge of the sheet 20 ′ is pressed against the base material 1 by the jig 25, and the reactivated adhesive is solidified by cooling and bonded. Therefore, although not shown, the pressure plate 27 is formed with a refrigerant passage through which a refrigerant flows, for example, and is cooled by the refrigerant. In order to prevent the pressure plate 27 from being heated by the heater plate 26, it is desirable to provide a heat insulating material on the back surface of the heater plate 26.

  Note that the bending jig 25 and the heater plate 26 of the present embodiment may be integrally formed.

  Further, in the present embodiment, the side wrapping method using a plate is illustrated, but the present invention is not limited to this, and a general wrapping facility is used for sheet wrapping of the side peripheral edge facing from the surface. May be.

(5) Sheet cutting process (end cut)
In the sheet cutting step, of the peripheral edge of the sheet 20 ′, edge portions corresponding to two sides of the end side surfaces 1 c, 1 c facing each other in the length direction in the base material 1, and the edge portions are end side surfaces of the base material 1. A predetermined length extending so as not to reach the front side inner surface 5a of the female real concave portion 5 and the front side outer surface 13a of the male real convex portion 13 through the chamfered portion 2 to the female real side surface 8 and the male real side surface 16 when bent into 1c and 1c. Cut to the right. For this cutting, for example, the tip of the base material 1 is detected by a sensor, and the base material 1 is cut at the predetermined length according to the total length of the base material 1 that is continuously conveyed.

(6) Second sheet bonding step (end lamination)
The second sheet bonding step is basically the same as the first sheet bonding step, except that both edges in the length direction of the sheet 20 ′ cut in the sheet cutting step are bonded. That is, in this step, as shown in FIGS. 6A and 6B, both edge portions of the sheet 20 ′ cut in the second sheet cutting step are bent to form end side surfaces 1c and 1c of the substrate 1. The peripheral edge of the decorative sheet layer 20 located on the end side surfaces 1c, 1c of the base 1 by applying pressure to the female side surface 8 of the female seed 4 and the female side surface 16 of the male seed 12 and solidifying the adhesive. Folded parts 20a, 20a are formed in the part.

  Also in this step, the same bending press mechanism 24 as that used in the first sheet bonding step is used. Since the structure and operation of the bending press mechanism 24 are the same as those used in the first sheet bonding step, description thereof is omitted (see FIG. 9).

  When this second sheet bonding step is completed, the edge of the sheet 20 'is bent and bonded to the two side side surfaces 1b and 1b and the two end side surfaces 1c and 1c of the base material 1, respectively. In the four corner portions of the decorative sheet layer 20, the bent portions 20 a, 20 a on the two adjacent sides of the base material 1 gather at the surplus portion of the end portion and protrude from the base material 1. 'Is formed.

(7) Surplus part clamping process In a surplus part clamping process, as shown to FIG. 7 (a) and (b), as mentioned above, the decorative sheet layer formed in the corner part of two adjacent sides of the base material 1 By clamping and pinching the 20 protruding portions 21 ′ (both excess portions), the bent portions 20 a and 20 a of the two sides of the decorative sheet layer 20 overlap the back surfaces of the protruding portion 21 ′. Molded so that

  In this surplus portion clamping step, a clamping mechanism 30 shown in 11 is used. The clamp mechanism 30 includes a plate-like base member 31 that moves forward and backward toward the corners of two adjacent sides of the substrate 1 by an actuator (not shown). The base member 31 has a distal end portion formed with a notch portion 32 that is cut out at a right angle in a substantially L shape, and a pair of inner surfaces of the notch portion 32 disposed so as to be orthogonal to each other, for example, in a horizontal plane. The pressing rulers 33 and 33 are attached and fixed. When the base member 31 is moved forward, the corners of two adjacent sides of the base material 1 on both sides of the protruding portion 21 ′ are pushed. The base member 31 and a clamp member 35 to be described later are positioned by pressing against the female side face 8 of the female seed 4 or the male side face 16 of the male seed 12 located on the bent portion 20a, 20a of the decorative sheet layer 20 from above. Like to do.

  On the upper surface of the base member 31, an openable and closable clamp member 35 located above the both pressing rulers 33, 33 is supported so as to be movable up and down. The clamp member 35 has the same structure as the pliers, and is lifted and lowered by a lift actuator (not shown) and opened and closed by an open / close actuator (not shown). The base member 31 is positioned by pressing rulers 33 and 33. When the clamp member 35 is opened, the clamp member 35 is lowered, and the protruding portion 21 ′ is pressed between the bent portions 20 a and 20 a of the decorative sheet layer 20. Molding is done so that the back surfaces are securely bonded.

  Thus, each protruding portion 21 ′ is formed at the four corners of the base material 1 so as to face, for example, in a direction at an angle of 135 ° with an equal interval with respect to two adjacent sides.

  In addition, although the base member 31 is formed in an L shape in this embodiment, the base member 31 having a necessary shape may be used depending on the shape of the peripheral edge portion and the chamfered portion.

(8) Excessive part excision process In the extra part excision process, as shown in FIGS. 8A and 8B, each excess part 21 ′ of the sheet 20 ′ is located at the intermediate part of the base material 1. Are excised in a state of being overlapped so as to be simultaneously, thereby forming the excision 21.

  In the surplus part excision step, a corner cut mechanism 40 shown in FIG. 12 is used. The corner cut mechanism 40 has the same basic structure as the clamp mechanism 30 described above, and is obtained by replacing the clamp member 35 with a nipper 41 (the same portions of the corner cut mechanism 40 as the clamp mechanism 30 are the same). (It will be described with reference numerals).

  That is, the corner cut mechanism 40 includes a plate-like base member 31 that moves forward and backward toward the corners of two adjacent sides of the substrate 1 by an actuator (not shown). A notch portion 32 is formed in a substantially L-shape and cut at right angles, and a pair of pressing rulers 33, 33 arranged so as to be orthogonal to each other in a horizontal plane, for example, are attached and fixed to both sides of the inner surface of the notch portion 32. By moving the base member 31 forward, these pressing rulers 33, 33 are provided on the female side surface 8 located at the corners of two adjacent sides of the base material 1 on both sides of the protruding portion 21 '. The base member 31 and a nipper 41 (to be described later) are positioned by pressing against the male side surface 16 from above the bent portions 20a, 20a of the decorative sheet layer 20.

  On the upper surface of the base member 31, a nipper 41 (cutting means) having an openable / closable blade portion 41a positioned above the both pressing rulers 33, 33 is supported so as to be able to move up and down. The blade 41a is opened and closed by an unillustrated opening / closing actuator, and when the base member 31 is positioned by the pressing rulers 33, 33, the blade 41a is lowered and opened. The cutting portion 21 'is sandwiched, the blade portion 41a is closed, the portion of the protruding portion 21' closer to the base material 1 is cut, and the leading end side of the protruding portion 21 'is cut off, so that the excision portion 21 is cut. Try to form.

(9) Corner portion forming step In the corner portion forming step, each of the cut portions 21 is softened by heating so as to conform to the outer surface of the substrate 1. In this step, a corner forming mechanism 45 shown in FIG. 13 is used. The corner portion forming mechanism 45 includes a base member 46 that moves forward and backward toward the corner portions of two adjacent sides of the substrate 1 by an actuator (not shown). A heating plate 47 is attached to the tip of the base member 46, and a heating recess 47a cut out at a right angle in a substantially L shape so that the inner surfaces are orthogonal to each other is formed on the front surface of the heating plate 47. As the base member 46 advances, the heating recess 47a of the heating plate 47 is pressed against the cut portion 21 and heated, so that the cut portion 21 is brought into a molten state and conforms to the outer surface of the substrate 1.

  In addition, in this corner | angular part shaping | molding process, you may heat to the extent to which each cutting part 21 (decorative sheet layer 20) melt | dissolves partially, and the cut surfaces are heat-sealed.

  The above three steps (4) first sheet bonding step (side lamination), (5) sheet cutting step (end cut) and (6) second sheet bonding step (end lamination) may be changed in order. Similar effects can be obtained.

  For example, (4) first sheet bonding step (side lamination) and (5) sheet cutting step (end cut) are reversed, and (5) sheet cutting step (end cut) → (4) first sheet bonding step ( Side lamination) → (6) The second sheet bonding step (end lamination) can be performed in this order.

  Also, the order of all three steps is reversed, and (6) second sheet bonding step (end lamination) → (5) sheet cutting step (end cutting) → (4) first sheet bonding step (side lamination) It may be.

  By passing through the above process, the said wrapping decorative board A is obtained.

  Therefore, in the said embodiment, in the state which adhere | attached sheet | seat 20 'on the surface 1a of the base material 1, the double bending part 20a of the decorative sheet layer 20 of 2 sides in the corner part of 2 sides which the base material 1 adjoins. , 20a are overlapped and joined to form a protruding portion 21 ', and the excess portion of the protruding portion 21' is cut at the same time to provide a cut portion 21, so that the sheet 20 ' It is possible to accurately wrap without shifting with respect to 1.

  In addition, since the cut portion 21 is softened by heating and is adapted to be along the outer surface of the base material 1, the cut portion 21 can be made inconspicuous and the appearance of the wrapping decorative board A can be enhanced.

  Further, the bent portions 20 a and 20 a of the decorative sheet layer 20 positioned on the end side surfaces 1 c and 1 c of the base material 1 do not reach the front inner surface of the female concave portion 5 and the front outer surface of the male convex portion 13 of the base material 1. Thus, even if the male and female seeds 5 and 12 are formed on the peripheral side surface of the substrate 1, the bent portion 20 a of the decorative sheet layer 20 is in the female seed 4. The front side inner surface 5a of the female real concave portion 5 and the front side outer surface 13a of the male convex portion 13 of the male seed 12 are not displaced and bonded. Therefore, the decorative sheet layer 20 does not adversely affect the fitting structure of the male and female berries 4 and 12.

(Embodiment 2)
FIG. 14 shows a second embodiment of the present invention (note that the same parts as those in FIGS. 1 to 13 are denoted by the same reference numerals and detailed description thereof is omitted). In the first embodiment, each side of the peripheral side surface is shown. The plate-like base material 1 on which the female seed 4 or the male seed 12 is formed is used, whereas the base material 1 without the female seed 4 or the male seed 12 is used.

  That is, in this embodiment, the wrapping decorative board A includes a plate-like base material 1 in which chamfered portions 2 are formed at corners of the surface 1a, the surrounding side side surfaces 1b and 1b, and the end side surfaces 1c and 1c, A decorative sheet layer 20 is formed by bonding and integrating a sheet 20 ′ to the surface 1 a or the peripheral side surfaces 1 b, 1 b, 1 c, 1 c of the substrate 1.

  Folded portions 20a, 20a,... Are formed at the peripheral edge of the decorative sheet layer 20, and each bent portion 20a located on the end side surface 1c of the base material 1 passes through the chamfered portion 2 of the base material 1 and is surrounded by The side surface 1b and the end side surface 1c extend so as not to reach the back surface of the base material 1, and are bonded to the side side surface 1b and the end side surface 1c.

  Then, the two bent portions 20a and 20a on the two sides of the decorative sheet layer 20 protrude from the base material 1 in a state where the back surfaces are overlapped with each other at the corners of the two adjacent sides of the base material 1. A cut portion 21 is formed by cutting and removing the excess portions at the same time (in an overlapping state). The cut portion 21 is softened by heating and is adapted to be along the outer surface of the substrate 1.

  The steps of the method for manufacturing the wrapping decorative board A and the manufacturing apparatus of the second embodiment are the same as those described in the first embodiment, and thus the description thereof is omitted.

  Therefore, the same effects as those of the first embodiment can be obtained in this embodiment.

(Other embodiments)
In the above embodiment, the nipper 41 is used to cut the protruding portion 21 ′ of the decorative sheet layer 20, but other cutting means such as a laser can be used.

  Moreover, in the said embodiment, although the base material 1 shall consist of a rectangular-shaped board | plate material, the square thing from which the side side surface 1b and the end side surface 1c become the same dimension length may be sufficient.

  The present invention is extremely useful because the sheet can be accurately wrapped without shifting from the substrate.

A decorative board 1 base material 1a surface 1b side side surface 1c end side surface 2 chamfered portion 4 female real 5 female real concave portion 5a front side inner surface 8 female real side surface 12 male real 13 male real convex portion 13a front side outer surface 16 male real side surface 20 decorative sheet layer 20 'sheet 20a bending part 21 cutting part 21' protrusion part 24 bending press mechanism 25 bending jig 25a bending pressure surface 25b inclined surface 26 heater plate 27 pressure plate 30 clamp mechanism 31 base member 32 notch 33 pressing ruler 35 Clamp member 40 Corner cutting mechanism 41 Nipper 45 Corner forming mechanism 47 Heating plate 47a Heating recess

Claims (5)

A plate-like base material, and a decorative sheet layer composed of a sheet bonded and integrated on the surface or peripheral side surface of the base material,
In the peripheral portion of the decorative sheet layer, a bent portion bonded to the peripheral side surface of the substrate is provided,
In the corners of the two adjacent sides of the base material, there is an excess part that protrudes from the base material of the two folded parts of the decorative sheet layer of the two sides in a state where the back surfaces are overlapped with each other,
Both the surplus parts have a cut end face exposed by cutting the decorative sheet layer on a portion closer to the base material side,
The wrapping decorative board according to claim 1, wherein the cut end faces extend in parallel with each other in the thickness direction of the base material along the corners of the base material in the exposed state . A plate-like base material in which a female fruit and a male fruit are formed on each side of the peripheral side surface, and a decorative sheet layer made of a sheet bonded and integrated on the surface of the base material or the peripheral side surface,
The female body of the substrate has a female body recess located on the back side or thickness direction intermediate portion of the substrate and a female body side surface adjacent to the front side of the female body recess, while the male body is the back side of the substrate or It has a male convex part located in the middle part in the thickness direction and a male side face adjacent to the front side of the male convex part,
In the peripheral portion of the decorative sheet layer, a bent portion bonded to the female side surface and the male side surface of the substrate is provided,
In the corners of the two adjacent sides of the base material, there is an excess part that protrudes from the base material of the two folded parts of the decorative sheet layer of the two sides in a state where the back surfaces are overlapped with each other,
Both the surplus parts have a cut end face exposed by cutting the decorative sheet layer on a portion closer to the base material side,
The wrapping decorative board according to claim 1, wherein the cut end faces extend in parallel with each other in the thickness direction of the base material along the corners of the base material in the exposed state . In claim 2,
The base material is a rectangular plate,
The bent portion of the decorative sheet layer bonded to at least the end side surface facing the length direction of the base material does not reach the front inner surface of the female concave portion and the outer outer surface of the male convex portion of the base material. A wrapping decorative board that extends to a side surface and a male side surface. In any one of Claims 1-3,
A lapping decorative board characterized in that a surplus portion having a cut end face is softened by heating and is adapted along the outer surface of the substrate. In any one of Claims 1-4,
A wrapping decorative board, characterized in that a decorative sheet layer is bonded and integrated to a base material through a moisture-curable urethane resin hot melt adhesive.

Images