JP3359617B2 - Manufacturing method of core material and frame material - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to the production of frame materials used for architectural doors such as partition panels, folding doors, sliding doors, hinged doors or furniture doors such as closet storage, entrance storage, cabinets, etc., and the core material thereof. About the method.

[0002]

2. Description of the Related Art Solid wood is widely used as a frame material for doors and other frame materials. However, due to the depletion of wood resources, it has become difficult to provide a stable supply of wood. In order to meet the demand, in recent years, instead of this, plywood, hard board, particle board, glulam, LV
A frame material in which a relatively strong wooden substrate such as L or LVB or a composite material thereof is used as a core material (base material) in a plate shape and decorative on both sides has been used.

[0003] A frame member having a flash panel structure is also used in which a frame made of wood, glued laminated wood, or the like is provided at intervals, and a decorative panel or the like is attached so as to cover the front and back surfaces thereof. .

On the inner peripheral surface of these frame members, moldings for fixing a glass plate, a mirror plate and the like and members having nested edges are fixed, and on the outer peripheral surface, the outer surface of the frame member is hidden. A decorative board made of wood or synthetic resin is fixed.

[0005]

In these frame materials, since a material having strength is used for the core material, it is difficult to directly process the core material. For this reason, as described above, a member such as a molding or decorative board is attached to the side surface of the core material to form a frame material, but the number of members is large, assembly is complicated, time is required, and cost increases. And the quality tends to vary.

[0006]

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems of the prior art. More specifically, the present invention is inexpensive, suitable for mass production, lightweight, has good workability, is easy to assemble, and has a high quality. It is an object of the present invention to provide a method for manufacturing a core material and a frame material which are stable and have excellent design.

[0007] In order to achieve this object, the present invention according to claim 1 is to laminate a plurality of wood fiber boards via an adhesive to form a wood fiber board laminate, A wood fiber board is laminated and adhered on one side via an adhesive to form a composite laminate, and the wood fiber board laminate and the composite laminate are cut into arbitrary widths, respectively, and the cut wood fiber board laminate and the composite The core material base portion is formed by aligning the longitudinal direction of the laminate in parallel and abutting and joining the surface veneer of the veneer laminate of the composite laminate to both laminating surfaces of the wood fiberboard laminate, A method of manufacturing a core material, comprising laminating and bonding a wood fiber board to the front and back surfaces of the core material base via an adhesive.

According to a second aspect of the present invention, a core material manufactured by the manufacturing method according to the first aspect is divided into approximately two equal parts in the lateral direction thereof, so that the one side laminated surface of the wood fiber board laminate is formed. On the other hand, two frame bases formed by laminating a wood fiber board are simultaneously formed on the front and back surfaces of the composite veneer laminated veneer, with the surface veneer veneer abutted and joined.
A method for manufacturing a frame material, wherein a nesting edge is formed on a side surface of a wooden fiberboard laminate by cutting.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS (1) Formation of Wood Fiber Board Laminate (FIG. 1) The wood fiber board laminate 3 is a wood fiber board 1 (hereinafter referred to as a fiber board) such as a soft fiber board or a hard fiber board. Is preferably formed by laminating a plurality of medium-density wood fiber boards (hereinafter, referred to as MDF).

When the fiberboard to be laminated is MDF,
The generally used density is 0.4 to 0.8 g / cm ³
Shall be used.

In general, it is preferable that the fiber boards to be laminated have substantially the same density as each other. However, it is preferable that the fiber boards be formed on the inner peripheral surface of the frame material (the side face to be fitted with the mirror plate) later. When it is desired to impart strength to the front and back surfaces of the nested edge to be formed, the fiber boards laminated on the front and back surfaces of the core material may have a high density.

Conversely, when it is desired to impart strength to a position where a nested end panel or the like to be formed later is inserted, the fiberboard laminated at the center of the wood fiberboard laminate corresponding to the position is densified. May be high.

The thickness of each fiberboard is in the range of about 2 to 12 mm, and all the fiberboards to be laminated may have the same thickness, or may have different thicknesses.

The number of the fiberboards 1 to be laminated varies according to the thickness of the frame and the thickness of the fiberboards to be used, but is generally about two to six.

Then, the fiberboards 1 are laminated with an adhesive therebetween, and heated and pressed by a press or the like to form a wooden fiberboard laminate 2, which is cut to an arbitrary width in the longitudinal direction to obtain a wooden fiberboard. The fiberboard laminate 3 is obtained. The cutting width at this time is
As will be described later, it is preferable that the width of the wood fiberboard laminate used in the frame base material 11 (FIG. 5) to be obtained is set to two widths. (2) Formation of Composite Laminate (FIG. 2) As the veneer laminate 4 (hereinafter, referred to as LVL), a commonly used wooden veneer in which the fiber directions are laminated in parallel is used. Note that the veneer may be made of coniferous or hardwood, or a mixture of these. The LVL only needs to have the strength as the core material of the frame material, and therefore, the purpose can be sufficiently achieved by using a commonly used LVL. In order to suppress the warpage of the LVL, an LVL having a cross band may be used. LV
The thickness of L is arbitrarily determined according to the width of the core material to be obtained.

Next, a wood fiber board 5 (hereinafter referred to as fiber board) is laminated on the back surface of the LVL 4 via an adhesive. As this fiberboard, MDF is suitably used similarly to the fiberboard used for the above-mentioned wood fiberboard laminate. The thickness of the fiberboard is arbitrarily determined according to the width of the core material to be obtained, but is usually about 2 to 24 mm.

After the LVL and the fiberboard are laminated via an adhesive, and heated and pressed by a press or the like to form a composite laminate 6,
The composite laminate 7 is obtained by cutting this into an arbitrary width in the longitudinal direction and in accordance with the thickness dimension of the wood fiber board laminate 3 (thickness dimension of a core base portion described later). (3) Formation of core base (FIG. 3) One wood fiber board laminate 3 obtained as described above is sandwiched between two composite laminates 7, 7 and the longitudinal direction of these laminates Are made parallel, and the front and back surfaces of the wood fiber board laminate 3 are vertically butted against the surface veneers of the LVLs 4 and 4 of the composite laminates 7 and 7, thereby forming the core material base portion 8.

In other words, when the core material is viewed as a cross section cut along a plane perpendicular to the longitudinal direction, the LVLs 4 and 4 of each of the composite laminates 7 and 7 are disposed on both side laminate surfaces of the wood fiberboard laminate 3. The surfaces are matched.

The reason for such a match is as follows. That is, when the laminated surfaces of the laminate are bonded together, the laminated surfaces have irregularities, so that the bonding area is reduced and the bonding strength is reduced. In addition, the adhesive used to form the laminate exists on the lamination surface, which hinders the penetration of the adhesive used when bonding the lamination surfaces to each other, resulting in poor adhesion and time-consuming adhesion. There is a problem that. On the other hand, in the case of the above-mentioned abutting mode adopted by the present invention, in one of the laminates (composite laminate), the surface single veneer of the LVL serves as a laminate surface (adhesion surface), so that a sufficient adhesion area is provided. The surface of the veneer veneer is a smooth surface on which the adhesive has not penetrated, so that bonding can be easily performed in a short time.

The wood fiberboard laminate 3 and the composite laminates 7, 7 are bonded to each other by heating and pressing with a press machine or the like via an adhesive.
May be performed at the same time as the formation.

The composite laminates 7, 7 are obtained by cutting into a width dimension corresponding to the thickness of the wood fiberboard laminate 3, and this cut surface is a surface orthogonal to the single-layer laminate direction of the LVL4. Therefore, it is not necessary to strictly define the thickness of the LVL used to form the composite laminate. Therefore, a commercially available LVL can be used, and the cost advantage is great.

Further, the reason why the composite laminates 7 and 7 are arranged on both sides of the wood fiber board laminate 3 is that the core material is later cut into two equal parts in the short direction so that two frame bases are simultaneously formed. The material was obtained. Details will be described later.

It is conceivable that the fiberboards 5, 5 of the composite laminates 7, 7 are abutted against the lamination surfaces on both sides of the wood fiberboard laminate 3, but in this case, the LVL4 , 4 are located, the surface smoothness is poor and the adhesive strength with the decorative sheet is insufficient, and the dimensional change due to the absorption and release of moisture is extremely large in the direction perpendicular to the fiber direction. Therefore, the decorative sheet is likely to be cracked or torn. (4) Formation of the core material (FIG. 4) The fiberboards 9 and
The core material 10 is formed by laminating 9 and heating and pressing with a press machine or the like. As this fiberboard, MDF is suitably used similarly to the fiberboard used for the wood fiberboard laminate and the composite laminate, and generally has a thickness of about 2 to 12 mm.

As described above, at this time, the bonding of the wood fiberboard composite 3 and the composite laminates 7, 7 may be performed at the same time, thereby shortening the manufacturing process. In this case, in the above-described step of forming the core material base portion 8, the composite laminates 7,
The LVLs 4 and 4 of No. 7 are abutted only by an adhesive, and the heating and pressing by a press machine is not performed. The core material 10 is formed by laminating 9 and pressing from both front and back surfaces and left and right sides. (5) Formation of frame base material (FIGS. 4 and 5) The core material 10 obtained as described above is cut along the longitudinal direction so as to be bisected in the lateral direction (cut surface in FIG. 4). X), two frame bases 11, 11 are obtained at the same time. As described above, the wood fiberboard composite 3 is approximately two times the width of the wood fiberboard composite 3 ′ in the frame base material 11 (strictly speaking, the wood fiberboard composite 3 ′).
(The dimension obtained by adding the thickness of the blade of the cutting machine to twice the width of the cutting machine).
By cutting at the same time, two frame base materials can be obtained at the same time, and not only is the production efficiency high, but also the advantage that a stable quality frame material can be obtained compared to the case where the frame base material is manufactured alone. is there.

Simultaneously with the cutting along the cut plane X, or after obtaining the frame base material 11, the frame base material 1
The cutting may be performed within the thickness range of the fiber board 5 of the composite laminate 7 arranged outside the first laminate 1 (along the cutting plane Y, Y in FIG. 4). Thereby, the width of the frame base material 11 can be adjusted to the specified size. In addition, the outer surface of the fiberboard 5 is pressed at the time of forming the core material base portion 8 and the core material 10 (particularly, the joining of the wood fiberboard composite 3 and the composite laminates 7, 7 and the fiber The plates 9 and 9 are joined together in a single pressing step to form the core material 10, which is likely to be damaged by pressing in the left-right direction. Further, after the core material 10 is obtained, it is transferred to a cutting machine by a belt conveyor or the like. Since it is easy to be damaged when it moves, cutting this portion gives the frame base material 11 a smooth side surface, thereby increasing the product value. (6) Formation of the frame material (FIG. 6) The side surface of the wooden fiberboard laminate 3 ′ located on the inner peripheral side of the obtained frame base material 11 is cut to form the nesting edge 12 and the mirror plate fitting groove 13. To form

The wood fiberboard laminate 3 'is arranged on the inner peripheral surface of the frame base material 11, and the front and back surfaces of the frame base material 11 are also composed of the fiberboards 9, 9. When these are configured by MDF, the nest 12 and the end plate fitting groove 13
Can be easily and simultaneously performed. Further, when it is desired to increase the nesting edge 12 and the end plate fitting groove 13, the cutting width for obtaining the wood fiberboard laminate 3 ′ is increased, or the corner of the frame base material 11 is chamfered. It becomes possible, and the nesting edge becomes a luxurious finish.

The frame member 16 is formed as described above.

According to the abutting mode adopted in the present invention, the fiberboard 9 laminated on one surface of the composite laminate 7 is located on the outer peripheral surface of the frame base material 11, so that the fiberboard 9 Coupled with the fact that the fiberboards 9, 9 are arranged,
It is also easy to process the outer peripheral surface. In Fig. 6, frame material 1
In 6, a chamfered portion 14 on the outer peripheral side of the surface is chamfered.

Further, a decorative sheet 15 can be adhered as a surface decoration of the frame material 16. The decorative sheet may be a commonly used one, and may be a decorative veneer, an artificial veneer, a decorative paper, a decorative cloth, a decorative synthetic resin film or sheet, a synthetic resin impregnated paper, or the like. In addition, a metal sheet such as an aluminum foil, a nonwoven fabric, a paper such as kraft paper or the like may be previously adhered to the back surface of the decorative sheet, or the decorative sheet may be adhered to the frame material surface with an adhesive. A metal sheet such as an aluminum foil, a nonwoven fabric, paper such as kraft paper, or the like may be interposed. The decorative sheet is subjected to a base treatment such as a sealing treatment, a sealer treatment, a siding treatment, and an undercoating treatment on the surface of the decorative sheet as required, and then through an adhesive or a colored adhesive or a double-sided adhesive sheet. Affixed.

The decorative sheet 15 is provided with the end plate fitting groove 13.
It is preferable that the front surface, the outer peripheral surface, and the back surface of the frame member 16 be wound from one side surface of the frame member 16 and then be wrapped around the other side surface of the end plate fitting groove so as to be adhered. By doing so, the seam of the decorative sheet is not visible when the end plate is fitted, and a beautiful finish is obtained. At this time, if a step (not shown) corresponding to the thickness of the decorative sheet is cut out and formed on the inner surface of the end plate fitting groove 13, the decorative sheet attaching operation can be performed smoothly. (7) Use of Frame Material (FIG. 7) The frame material 16 of the present invention can be used for both vertical frames and horizontal frames, but it is preferable to use the frame material of the present invention for at least the vertical frames. This is achieved by using the frame member 16 of the present invention as the left and right vertical frames 17, 17 to form a vertical winning frame (left and right vertical frames are provided over the entire length, and upper and lower horizontal frames 18, 18 are provided therebetween. ), The LVL 7 having sufficient strength can be used as a mounting portion for fittings such as a handle of a door, a hinge, a door puller of a sliding door, a pulling door, or a hanging bracket of a closet. . In this case, in advance (preferably the core material 10 or the frame base material 11)
It is preferable that a mounting groove (not shown) is formed at the mounting position of the LVL bracket (after the formation).

Although the method of assembling the frame using the frame material of the present invention is not particularly limited, it is usually done by doweling. Doweling is performed after forming a core material or a frame material.

In the case of joining with a mortise, a mortise is formed at both ends of the horizontal frame or the vertical frame, and a mortise is formed at the vertical frame or the horizontal frame at a position where the mortise is inserted. The nesting edge of the mortise of the mortise on the mortise-hole side has its tip removed, and projections are formed on both ends (vertical frames) of the mortise-side frame material to cover the nesting edge. The mortise and the mortise are formed in the strong LVL portion, and the projections covering the nesting edge are formed on the front and back MDF having excellent workability. A vertical frame or horizontal frame may be provided with a mirror plate insertion groove. (8) Example Hereinafter, an example of the present invention will be described.

As shown in FIG. 1, the thickness is 5.5 mm, 7 m
18 mm thick wood fiber board laminate 2 obtained by laminating three MDFs 1, 1, 1 with a thickness of 5.5 mm via an adhesive.
Was cut in the longitudinal direction to a width of 72 mm as shown by the dotted line to form wood fiberboard laminates 3, 3,....

Next, as shown in FIG.
7mm thick MDF with an adhesive on the lower surface of LVL4
The composite laminate 6 having a thickness of 37 mm obtained by laminating No. 5 was cut into a width of 18 mm in the longitudinal direction as shown by a dotted line to form composite laminates 7, 7,.

As shown in FIG. 3, the laminates 3 and 7 are placed on the fiberboard laminate surfaces on both sides of the wood fiberboard laminate 3 with their longitudinal directions parallel to each other. The LVL4, 4 surfaces are joined to each other via an adhesive to form a core material base portion 8, and further,
As shown in FIG. 4, MDFs 9 and 9 each having a thickness of 4 mm are adhered to the front and back surfaces of the core material base portion 8 via an adhesive, and heated and pressed simultaneously from the front and back surfaces and left and right sides by a press machine. The core material 10 having a width of 218 mm and a thickness of 18 mm was formed.

As shown in FIG. 4, this core material 10 is cut along the X-ray at the center in the width direction to bisect the core material 10 and the MDFs 5, 5 of the composite laminates 7, 7 at both ends in the width direction.
Is cut along the Y, Y line at a position of 2.5 mm from both ends to form a frame base material 11, 1 having a width of 70 mm and a thickness of 18 mm.
1 (FIG. 5) was obtained. This frame base material 11 has M
DF3 ', 5,9.

As shown in FIG. 6, the nesting edge 12 having the end plate fitting groove 13 is joined to the frame base material 11 from the side surface on the side of the wooden fiberboard laminate 3 '. In addition to the formation except for the position, the surface side corner of the opposite side surface was chamfered 14. A dowel hole (not shown) for joining was formed at the joining position of the horizontal frame. In addition, grooves (not shown) for inserting a suspension wheel and a pivot bracket were formed at locations of the LVL 4 on the upper surface and the lower surface of the frame base material 11.

Further, a step (not shown) corresponding to the thickness of the decorative sheet 15 is formed in the front side and the rear side of the inner side surface of the end plate fitting groove 13 so as to form a portion where the decorative sheet 15 starts to be adhered. The part at the end of pasting was accommodated.

The frame member 16 obtained in this manner was used for the vertical frames 17, 17 of the closet door 20 that won vertically.

Although not shown, the horizontal frames 18 and 18 have the same MDF as the frame members 16 used for the vertical frames 17 and 17.
On the upper or lower surface of a core material having a thickness of 18 mm, which is laminated with an adhesive, a nesting edge 12 having a head plate fitting groove 13 similar to that described above is formed. A frame material with a dowel hole was used.

A decorative sheet 15 having the same pattern was attached to the vertical frame 17 and the horizontal frame 18 (FIG. 6). Decorative sheet 1
5 is to apply an adhesive to the back surface of the decorative sheet 15,
This was performed by sticking to a frame material via kraft paper (not shown). At that time, both ends of the decorative sheet 15 were positioned so as to be accommodated in the steps formed on the inner surface of the end plate fitting groove 13.

Then, end plates 19, 19 obtained by attaching a decorative sheet similar to the above-mentioned frame material to a wooden board are fitted to the nesting edges 12 formed on the inner peripheral surfaces of the vertical frame 17 and the horizontal frame 18, respectively. The dowels are inserted into the dowel holes of the vertical frame 17 and the horizontal frame 18 to assemble them. Further, a hanging wheel and a pivot metal fitting are attached to metal fitting insertion grooves formed on the upper and lower surfaces of the vertical frame 17, and the closet door 20 ( FIG. 7) was formed.

[0043]

According to the present invention, a frame material suitably used as a door for a building or a furniture can be mass-produced in a short time, and the quality can be stabilized.

The core material of the frame material is made of LVL and MDF, and can be manufactured lightly and inexpensively, so that the cost can be significantly reduced.

Further, by forming the four peripheral edges by MDF, it is easy to perform cutting or the like on the four peripheral surfaces, and it is possible to cut the inner peripheral surface of the frame material to form a nested edge. Therefore, the labor for attaching the nesting edge prepared as a separate member can be omitted, and the time for manufacturing the frame material can be reduced.

Further, since the nesting edge is formed integrally with the frame material, a beautiful finish is obtained.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a procedure for producing a wood fiberboard laminate used for forming a frame material according to an embodiment of the present invention.

FIG. 2 is a perspective view showing a procedure for producing a composite laminate used to form the frame material.

FIG. 3 shows a core base part obtained by butting a wood fiberboard laminate obtained by the manufacturing procedure shown in FIG. 1 and a composite laminate obtained by the manufacturing procedure shown in FIG. FIG.

FIG. 4 is a cross-sectional view showing a core material obtained by attaching fiber boards to the front and back surfaces of the core material base portion of FIG.

FIG. 5 is a cross-sectional view showing a frame base material obtained by cutting the core material of FIG. 4 into two equal parts in the transverse direction.

FIG. 6 is a cross-sectional view showing a frame material obtained by performing a required cutting process on the frame base material of FIG. 5 and attaching a decorative sheet.

FIG. 7 is a front view showing a closet door using the frame member of FIG. 6 as a vertical frame.

[Explanation of symbols]

 Reference Signs List 3 wood fiber board laminate 4 veneer laminate (LVL) 5 wood fiber board (MDF) 7 composite laminate 8 core material base part 9 wood fiber board (MDF) 10 core material 11 frame base material 12 nested edge 13 mirror plate Fitting groove 15 Decorative sheet 16 Frame material

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int. Cl. ⁷ , DB name) B27M 1/00-3/38

Claims (2)

(57) [Claims] 1. A wood fiber board laminate is formed by laminating and bonding a plurality of wood fiber boards with an adhesive, and the wood fiber boards are laminated and bonded to one surface of a veneer laminate with an adhesive. To form a composite laminate, cutting the wood fiber board laminate and the composite laminate to respective arbitrary widths, aligning the cut wood fiber board laminate and the composite laminate in the longitudinal direction, and stacking the wood fiber board. The core material base is formed by abutting and joining the surface veneers of the veneer laminate of the composite laminate to both sides of the body, and bonding the adhesive to the front and back surfaces of the core material. A method for producing a core material, comprising laminating and bonding wood fiber boards. 2. The composite material according to claim 1, wherein said core material is divided into two substantially equal lengths in the widthwise direction so that said composite material has a single laminated surface with respect to one side laminated surface of said fiberboard laminate. Surface laminate veneers are joined to each other and two frame bases each formed by laminating a wood fiber board are simultaneously formed on the front and back surfaces, and each frame base is formed on the side of the wood fiber board laminate side. A method for manufacturing a frame material, wherein a nesting edge is formed by cutting.