JP2904482B2 - Cosmetic fabrication member and method of manufacturing the same - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a decorative plate in which a synthetic resin film or a woven sheet treated with a synthetic resin or a sheet-like material thinly cut from high-quality wood is adhered to a substrate into a pillar or plate shape. More particularly, the present invention relates to a technique that can stably and surely adhere to a wooden base material, can shorten a manufacturing time, and can cope with a small lot.

[0002]

2. Description of the Related Art A wooden base made of wood, plywood, particle board, or the like is formed in a columnar or plate-like shape, and a decorative plate is attached to the outside of the substrate to form a new decorative member such as a column, a panel, or a frame. This has been done in the past. FIG.
Is one of the above-mentioned conventional examples, which is an example of a decorative fabric member formed by winding a decorative plate 2 around a surface of a square pillar-shaped wooden base material 1 and bonding the decorative plate.

[0003] As shown in FIG.
Four V-shaped bent grooves 3 corresponding to the four corners of the wooden base material 1 are cut. Then, the woodworking adhesive 4 is applied to the bonding surface by a roll coater, and is sent to a roller press. In the roller press machine, first, as shown in FIG. 10 (a), the wooden base material 1 is superimposed on the center of the decorative board 2 and pressed and adhered by a roller (not shown) from above and below. Next, as shown in FIG. 10 (b), the decorative board 2 is bent at the bending grooves 3 on both sides of the wooden base material 1 and pressed from both sides by rollers (not shown). 2a, 2a are bent and pressed from above and below as shown in FIG. 10 (c), and a decorative board 2 is attached so as to surround the wooden base material 1.

[0004] However, the conventional hardening type woodworking adhesive used in the above prior art is made of an emulsion type such as vinyl acetate, and it takes a long time to harden at room temperature. For this reason, in the roller press for attaching the decorative board 2 to the wooden base 1, the feed rate of the wooden base 1 is extremely reduced, and the length of the roller press is increased, so that the adhesive 4 for woodworking is obtained. After the hardening, the makeup member was discharged.

However, there is a limit even if the length of the roller press is lengthened or the feed speed is reduced, and the makeup member coming out of the roller press is not sufficiently cured because the adhesive is not sufficiently cured. Curing had to be performed further under pressure until the agent was completely cured.

On the other hand, in addition to increasing the length of the roller press to reduce the feed rate, the wood base material is heated beforehand and then fed to the roller press, so that the adhesive is Various methods have been used in combination, for example, to shorten the curing time, thereby ensuring the curing time and improving the productivity. Still, the production speed is still slow,
Roller presses have also been problematic in that they have become quite long, require high equipment costs, and have poor productivity.

Further, in a roller press machine, pressing between rollers cannot be performed, and pressing is performed at points. Moreover,
With the above-described ordinary hardening type woodworking adhesive, it cannot be instantaneously bonded simply by pressing with a roller. Therefore, if the wooden base material has dimensional variations or “warpage” due to drying, there is also a problem that between the rollers, these portions are easily peeled off, and in particular, poor adhesion tends to occur at the ends. .

On the other hand, hot melt type adhesives have been used as adhesives. When a hot-melt adhesive is used, bonding can be performed instantaneously, so that productivity can be dramatically improved.

[0009] However, hot melt adhesives are
If heated after bonding, it will melt again. Therefore, when the decorative fabric member bonded with the hot melt adhesive is used in a place where the temperature becomes high, the adhesive portion may be melted again and the wooden substrate and the decorative board may be peeled off.

Therefore, as shown in FIGS. 11 and 12, only the both ends of the decorative board 2 are bonded with a hot-melt adhesive 5, and the other portions are bonded with an ordinary vinyl acetate-based woodworking adhesive. A method was also proposed.

In order to perform such bonding, it is necessary to prevent the emulsion type vinyl acetate adhesive from being applied to both end portions 2a of the decorative board 2. Because when the emulsion type adhesive is applied,
This is because the hot melt adhesive will not adhere.

Therefore, as shown in FIG. 11, several rings 7 are fitted to the lower roller 6 of the roll coater, and both ends 2a, 2a of the decorative board 2 are pushed down by a guide or the like (not shown) and fed in, and glued from above. When the vinyl acetate-based woodworking adhesive is applied by the roller 8, both end portions 2a, 2a
Was not coated with the woodworking adhesive. Then, a hot-melt adhesive is applied to both end portions 2a, 2a using a hot-melt applicator or the like, and is sent to a roller press. Was pasted on.

According to this method, since both ends of the decorative board are bonded with a hot-melt type adhesive for instantaneously bonding, the vinyl acetate-based woodworker can be simply left out of the roller press. The adhesive for use gradually hardens, and eventually the whole is firmly attached.

[0014]

However, this prior art has the following problems. That is, when both ends of the decorative board are bonded with the hot-melt adhesive 5, the hot-melt adhesive 5 is solidified after bonding, and both ends 2a, 2a of the decorative board 2 rise as shown in FIG.
Further, when both end portions 2a, 2a are heated after bonding, only this portion is peeled off. Further, when the size of the wooden base material 1 is changed, the position of the bent groove 3 also changes, so that the ring 7 has to be moved to the position of the new bent groove 3. In the meantime, the adhesive for woodwork penetrates, and the ring 7 is adhered to the lower roller 6, making this movement very difficult. In addition, there is no standard for the size to move, and it moves by intuition. It was a target.
Further, in this operation, the operator puts his hand between the rollers, which is not preferable in terms of safety.

The present invention has been made in order to solve the above-mentioned problems, and it is possible to greatly shorten the bonding time, eliminate the need for the ring 7, and furthermore, to provide a decorative member which does not peel off even when heated after bonding. It is intended to provide a manufacturing method.

[0016]

In order to achieve the above object, the present invention comprises a wooden substrate and a decorative board adhered to the surface of the wooden substrate. Or a thin plate thick portion is formed, and the above-mentioned wood substrate is bonded to the groove or thin plate except for the thick wood portion with an ordinary hardening type woodworking adhesive, and the groove or thin plate thick portion and the above-mentioned wood substrate are hot melt type. It is characterized in that it is bonded with an adhesive.

Further, the wood base material has a corner portion, the decorative board has a bent groove corresponding to the corner portion, and the groove or the thin plate thick portion to be bonded with a hot melt type adhesive is:
It may be configured to be formed separately from the bent groove. It is good also as composition which the above-mentioned slot or thin board thick part is formed in both ends of the above-mentioned decorative board, or both ends near.

Or a long wooden base material having a rectangular cross section;
A decorative board formed with four bent grooves corresponding to the respective corners of the wooden base material and adhered so as to surround the wooden base material; A groove or a thin plate thick portion substantially parallel to the above is formed, and the above-mentioned wood base is adhered to the above-mentioned wood substrate by using a hardening type woodworking adhesive. Is characterized in that it is bonded with a hot melt adhesive. It is desirable that the volume of the hot melt adhesive is not larger than the volume of the groove or the thick part of the thin plate.

[0019] The method for manufacturing the decorative work member includes a step of forming a long wooden base material having a corner, and a step of forming a decorative board attached to the wooden base on a fold corresponding to the corner of the wooden base. A step of forming a curved groove, a step of forming a groove or a thin plate thick portion at a position different from the bent groove on the bonding surface of the decorative plate, and a normal curing type on the bonding surface excluding the groove or the thin plate thick portion. Applying a wood-working adhesive, applying a hot-melt type adhesive to the groove or the thick part of the thin plate, and applying a decorative plate coated with the wood-working adhesive and the hot-melt type adhesive to a roller press machine. And attaching to the wooden base material while bending at the bending groove. Prior to the step of applying the hot-melt adhesive to the groove or the thick part of the thin plate, the decorative board and / or the wood base may be preheated in a drying furnace. Instead of the step of applying the hot melt type adhesive to the groove or the thick portion of the thin plate, the hot melt type adhesive may be applied to a portion of the wooden base material corresponding to the groove or the thick portion of the thin plate.

[0020]

Embodiments of the present invention will be described below in detail with reference to the drawings. In FIG. 1, a wood substrate 1 is basically the same as the conventional example, and various wood materials such as wood, plywood, and a particle board formed by hardening wood fibers can be used. Also, the shape is columnar in the illustration,
It may have a plate shape or the like.

The decorative board 2 is a decorative sheet in which a synthetic resin film such as vinyl chloride or a wood grain pattern or the like is printed on a synthetic resin-treated woven sheet on the surface of a board material such as veneer plywood, particle board or hard board. Or a sheet material or the like thinly cut from high-quality wood.

The decorative plate 2 is provided with four bent grooves 3, 3, 3, 3 corresponding to the corners of the wooden base material 1. The bent groove 3 is cut from the back side to the front side of the decorative plate 2, but leaves a film portion on the surface so as not to divide the decorative plate 2. Then, when the film portion of the bending groove 3 is bent as a hinge, the wood substrate 1 can be covered so as to surround it.

The decorative plate 2 having the bent grooves 3 formed as described above
Grooves 9 and 9 are cut in the vicinity of both ends by using a cutter. If this groove 9 is formed in parallel with the bent groove 3, it can be formed simultaneously with the bent groove 3 or continuously one by one by a device for forming the bent groove 3. Further, in this embodiment, the cross section of the groove 9 is rectangular, but various cross-sectional shapes other than the rectangular shape can be obtained by changing the shape of the cutter. Further, the positions and depths of the bent grooves 3 and the grooves 9 can be easily changed, so that the lot switching time can be reduced, and the production of small lots can be supported.

Next, as shown in FIG. 1, a woodworking adhesive 4 is applied to the bonding surface of the decorative board 2 as shown by cross-hatching. As the woodworking adhesive 4, the same vinyl acetate emulsion type as in the conventional example is used, and is applied by the same roll coater as in the conventional example.

FIG. 2 is a view corresponding to FIG. 11, but as shown in this figure, it is not necessary to fit the ring 7 on the lower roller 6 in the present invention. By appropriately setting the depth of the groove 9, even if the woodworking adhesive 4 is applied to the entire surface of the decorative board 2, it can be prevented from being applied to the groove 9. Then, a hot-melt adhesive 5 is applied to the grooves 9 to which the woodworking adhesive 4 is not applied, as shown in FIG. The hot-melt adhesive 5 is applied using a hot-melt applicator, and the temperature and time for solidification are set appropriately.

In this case, if the decorative board 2 or the wooden base 1 is cold, the applied hot melt will solidify. Therefore, the decorative board 2 or the wooden base 1 should be warmed in advance in a drying oven or the like. . However, this preheating may be lower than the preheating in the conventional example, so a small drying oven is sufficient. Also, this preheating may not be necessary depending on installation conditions, seasons, and the like.

The decorative board 2 to which both the woodworking adhesive 4 and the hot-melt adhesive 5 are applied is pressed by a roller press or the like in the order shown in FIGS. 10 (a) to 10 (c). It comes out of the roller press as a makeup member as shown in FIG. Since the groove 9 is instantaneously bonded with the hot-melt adhesive 5, there is no need to worry that the groove 9 will be peeled off when it is discharged from the roller press machine. Agent 4
Will also cure and adhere completely. It is not necessary to press down with a roller or the like until the woodworking adhesive 4 is hardened.

In the embodiment of the present invention, the volume of the hot melt adhesive 5 is set to be equal to or less than the volume of the groove 9. In this way, it is possible to prevent the hot melt adhesive 5 from overflowing from the groove and lifting the end of the decorative board 2 as shown in FIG.

In the embodiment of the present invention, the hot-melt adhesive 5 is bonded only at the groove 9, and the periphery of the groove 9 is bonded with the normally hardening woodworking adhesive 4. Therefore, even if the hot melt type adhesive 5 is melted by using the cosmetic making member of the present invention in a high temperature place, the woodworking adhesive 4 does not melt.
The decorative board 2 does not peel off from the wooden substrate 1. In addition, since the ordinary type of inexpensive woodworking adhesive 4 can be used for most of the bonding surface, the running cost is reduced.

In the above-described embodiment, the groove 9 is provided in the vicinity of both ends 2b, 2b of the decorative board 2, but the position of the groove 9 is not limited to this. Any number may be provided at any position including the position. Further, the bent groove 3 is exemplified as a V-shaped groove, but may be a U-shaped groove or a W-shaped groove (C surface).
When the corners of the wooden base material 1 are rounded, comb grooves may be used. Furthermore, the groove 9 may be formed in a curved shape, or the plate-like wooden base material 1 and the decorative board 2 may be bonded together without the bent groove 3 at all. It is also possible to adopt a configuration that covers only a part of the square wooden base material 1 as three books or a configuration that surrounds a pentagonal or more polygonal wooden base material as five or more. The hot-melt type adhesive was applied to the grooves 9,
May be applied to the wooden base material 1 corresponding to.

FIGS. 5 and 6 show another embodiment of the present invention. In this embodiment, the groove 9 is formed to be wide and the end face 2b side of the decorative board 2 is opened. In other words, it can be said that a step or a thin plate 10 is formed at both ends of the decorative plate. And this thin plate thick part 10
The hot melt type adhesive 5 is applied to and adhered to the portion.

FIGS. 7 and 8 show a modification of the embodiment shown in FIGS. 5 and 6, wherein the entire end portions 2a (see FIG. 9) outside the bent grooves 3 on both sides of the decorative plate 2 are thinned. This is an example in which the thick portion 10 is used. Then, the entire thin plate thick portion 10 is adhered with the hot melt type adhesive 5 to have the same thickness.

[0033]

As described above, the decorative making member of the present invention comprises a wooden substrate and a decorative plate adhered to the surface of the wooden substrate, and a groove or a thin plate is formed on the bonding surface of the decorative plate. A thick portion is formed, and the above-mentioned wood substrate is adhered to the above-mentioned wood substrate in an emulsion type except for the above-mentioned groove or thin-plate thick portion, usually with a hardening woodworking adhesive. Since the structure is bonded with an adhesive, the wood substrate and the decorative board can be instantaneously bonded to each other, and the production speed of the decorative fabric member can be greatly increased. In addition, reliable adhesion can be stably obtained, and it is possible to cope with many kinds of small lots.

In addition, by configuring the volume of the hot melt adhesive not to be larger than the volume of the groove or the thick portion of the thin plate, it is possible to prevent the portion bonded by the hot melt adhesive from floating. Also, a small (short) drying oven or roller press is sufficient.

[Brief description of the drawings]

FIG. 1 is a perspective view for explaining a method of manufacturing a decorative member according to the present invention.

FIG. 2 is a diagram showing a state in which a woodworking adhesive is applied to the decorative board of the present invention.

FIG. 3 is a front view showing a state in which a woodworking adhesive and a hot-melt adhesive are applied to a decorative board.

FIG. 4 is a view showing a structure of a makeup member according to the present invention.

FIG. 5 is a perspective view for explaining a manufacturing method according to another embodiment of the cosmetic making member of the present invention.

FIG. 6 is a view showing a structure of a makeup member shown in FIG. 5;

FIG. 7 is a perspective view for explaining a method of manufacturing a makeup member according to another embodiment of the present invention.

FIG. 8 is a view showing the structure of the makeup member shown in FIG. 7;

FIG. 9 is a perspective view illustrating a method for manufacturing a conventional decorative member.

FIGS. 10A to 10C are views showing a step of attaching a decorative board to a wooden base material.

FIG. 11 is a diagram showing a state in which a woodworking adhesive is applied to portions other than both ends of a conventional decorative board.

FIG. 12 is a view showing a state in which both ends of a decorative plate are bonded with a hot-melt adhesive in a conventional decorative member.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Wood base material 2 Decorative board 2b, 2b Both ends (of decorative board) 3 Bending groove 4 Adhesive for woodworking 5 Hot-melt type adhesive 9 Groove 10 Thin plate thick part

Claims (7)

(57) [Claims] 1. A consists of a wooden base material having a corner portion, a decorative plate having a bending groove corresponding to the corner portion is adhered to the surface of the wood fibrous base material, the folding the adhesive surface of the decorative plate A curved groove or a different groove or thin plate thick portion is formed, and the groove or thin plate thick portion and the wood substrate are bonded with a hardening type woodworking adhesive,
The groove or thin plate and the wood substrate are bonded with a hot-melt adhesive. Wherein the groove or sheet thickness portion, the decorative features member according to claim 1, characterized in that it is formed at both ends or both ends near the veneer. 3. A long wooden base having a rectangular cross section, and a decorative board formed with four bent grooves corresponding to respective corners of the wooden base and adhered so as to surround the wooden base. Formed at both ends or near both ends of the decorative board, a groove or a thin plate portion substantially parallel to the bent groove, and the wood substrate other than the groove or the thin plate portion is usually a hardening type woodwork. A decorative fabric member, wherein the decorative member is bonded with an adhesive, and the groove or the thick portion of the thin plate and the wooden substrate are bonded with a hot-melt adhesive. 4. The decorative construction member according to claim 3 , wherein the volume of the hot-melt adhesive is not larger than the volume of the groove or the thick part of the thin plate. 5. A step of forming a long wooden base material having a corner portion, and a step of forming a bent groove corresponding to the corner portion of the wooden base material in a decorative board attached to the wooden base material; A step of forming a groove or a thick portion at a position different from the bent groove on the bonding surface of the decorative plate, and applying an ordinary hardening type woodworking adhesive to the bonding surface excluding the groove or the thin portion. And a step of applying a hot melt type adhesive to the groove or the thin plate thick portion,
Attaching a decorative board coated with a woodworking adhesive and a hot-melt adhesive to the wood substrate while bending the decorative board with the bending groove by a roller press machine. Manufacturing method. 6. The method according to claim 5, wherein the decorative board and / or the wooden base material is preheated in a drying furnace prior to the step of applying the hot melt type adhesive to the groove or the thin plate thick portion.
A method for producing the decoratively crafted member according to the above. 7. A method of applying a hot-melt adhesive to a portion corresponding to a groove or a thick portion of the wooden base material, instead of applying a hot-melt adhesive to the groove or the thick portion of the thin plate. The method for manufacturing a decorative member according to claim 5 or 6, wherein: