JPH0438877B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a method for manufacturing wooden doors used indoors and outdoors in houses and the like.

[Conventional technology] Conventionally, the manufacturing method for high-quality wooden doors with a three-dimensional appearance used for houses, etc., is to first cut the necessary number of thick solid wood boards to a predetermined size to match the dimensions of the door. After that, the four peripheries are chamfered and cut to form a head plate.

The mirror panel is then generally manufactured by being fixed to the space of the frame material using a decorative edge, and in order to give the door a more luxurious appearance, a router or the like is attached to both or one side of the panel panel. A method of cutting using a cutting machine to create an uneven pattern has also been adopted.

[Problems to be Solved by the Invention] However, since wooden doors are manufactured in the manner described above, the thick solid wood panels that serve as the mirror panels must be chamfered and textured one by one, which makes processing difficult. Not only is it time-consuming, but solid wood boards are also prone to warping and cracking due to changes in humidity. Furthermore, as natural resources are being depleted, it is becoming difficult to obtain precious woods.

As a result, the finished doors had to be extremely expensive.

SUMMARY OF THE INVENTION Accordingly, the present invention provides a method for easily and inexpensively manufacturing a luxurious and solid wooden door by manufacturing a mirror panel having three-dimensional irregularities easily and inexpensively.

[Means for Solving the Problems] In order to achieve the above object, the present invention provides a method of forming a plurality of grooves and grooves on the surface of a regular substrate with a cross-sectional shape.
After forming a smooth curved surface of about 100mmR or more, stack the thin veneers on the entire surface with an adhesive so that the grains of the thin veneers are in the recess, and then The present invention relates to a method for manufacturing a decorative veneer-covered door, in which a thin veneer is pressed and adhered to a substrate to form a mirror plate, the back surfaces of the mirror plates are bonded together, and then the decorative veneer is fitted onto a frame material via a decorative edge.

Hereinafter, this invention will be described in detail with reference to drawings serving as examples. Fig. 1 is a process diagram showing the steps from pasting a thin veneer to the top surface of a substrate to manufacturing a mirror plate, and Fig. 2 is a diagram showing the steps obtained by this invention. A cross-sectional view of the door is shown.

1 indicates a commonly used board, which is a wood-based board such as plywood, LVL, particle board, hardboard, MDF, etc. with a thickness of about 5 to 20 mm. In this example, MDF with a thickness of 7 mm was used as the substrate 1. Next, a plurality of grooves 2 are formed on the surface of the substrate 1 as shown in FIG. 1B.

The grooves 2 may be formed not only in the longitudinal direction of the substrate 1 but also in the lateral direction. The shape of the groove 2 depends on the thickness and flexibility of the thin veneer 3 attached to its upper surface, but by making the cross-sectional shape a recess with a smooth curve of about 100 mm or more, it is possible to The veneer 3 can be attached to the substrate 1 without being easily bent, cracked, or torn. It goes without saying that it is preferable that the grooves 2 formed in the direction perpendicular to the fiber direction of the thin veneer 3 to be pasted have a radius of curvature of 100 mmR or more, which is as large as possible. The grooves 2 can be formed by cutting the surface of the substrate 1 with a processing machine such as a router, or by stacking embossed plates and pressing them with a hydraulic or hydraulic press.

In this example, the groove 2 has a cross-sectional shape of 100 mmR.
were cut along the longitudinal direction on the surface of the substrate 1 using a router, with two pieces in the center and a semi-R shape on the periphery.

Next, a thin veneer 3 is integrally attached to the entire surface of the substrate 1 as shown in FIGS. 1C and 1D. To attach the thin veneer 3 to the substrate 1, apply vinyl acetate resin, urea resin adhesive, etc. to the entire surface of the substrate 1 using a glue spreader, etc., and then form grooves 2 parallel to the longitudinal direction of the substrate 1.
Thin veneers 3 are stacked so as to be joined internally, and are integrally crimped not only on the flat surface of the substrate 1 but also inside the grooves 2. The method of crimping is as shown in FIG. 1C, by stacking a flexible sheet-like material 5 on the surface of the substrate 1 on which thin veneers 3 are stacked, and using a vacuum press 6 or a cushion material to press the thin veneer 3 by applying pressure from below. A device such as a hot press is used to stack the pieces and press them together while applying heat from above. The pressure bonding conditions are a temperature of 100 to 150°C, a pressure of 3 to 10 kg/cm ² , and a time of about 1 to 10 minutes.

The thin veneer 3 is a thin decorative veneer with a thickness of about 0.1 to 0.7 mm, and a commonly used decorative veneer such as a natural precious wood veneer such as zelkova, shioji, sen, or teak, or an artificial heathered decorative veneer is used. In addition, if you attach thin Japanese paper, non-woven fabric, cloth, etc. to the back of the thin veneer 3, even extremely thin veneers with a thickness of about 0.1 to 0.3 mm can be easily attached to the substrate 1 or handled. Furthermore, even after forming the end plate 4, it does not crack or tear, which is preferable.

In this example, a vinyl acetate resin emulsion adhesive is applied to the entire surface of the substrate 1 using a spray coater, and a 0.25 mm thick veneer veneer is aligned so that the joint end is in the recess of the groove 2, and then the vacuum press 6 Pressure bonding was carried out under the conditions of a temperature of 120° C., a pressure of 5 kg/cm ² and a time of 3 minutes.

Then, two of the substrates 1 with decorative processing only on the front surface obtained as described above are bonded to each other on the back surfaces to form a mirror plate 4.

The mirror plate 4 produced by this method is fitted and fixed to the frame material 7 via the decorative edge 8 in the same manner as in the conventional method, and assembled as a door.

The decorative edge 8 is made of wood, synthetic resin, etc., and has grooves on one side that fit with the periphery of the mirror plate 4 and on the other side with grooves that fit with the inner periphery of the frame material 7. After injecting adhesive into the parts and fitting the mirror plate 4, the frame material 7 is fitted to form the door. In addition,
As the frame material 7, a frame material having a flat structure as shown in FIG. 2 or a frame material carved from solid wood is used.

In this embodiment, a veneer of the same tree species as the mirror plate 4 was attached to the surfaces of the frame member 7 and the decorative edge 8 of the flash structure, and the mirror plate 4 was fitted onto the frame member 7 via the decorative edge 8.

[Effects of the Invention] The door manufacturing method of this invention involves forming grooves on a single inexpensive substrate, and then pasting a thin veneer over the entire surface to form a mirror plate, which is different from conventional manufacturing. Compared to other methods, processing of the mirror plate requires less effort.

A single continuous thin veneer is attached to the flat surface of the mirror panel and into the grooves, giving it a luxurious appearance as if the grooves were formed by cutting a single piece of solid wood. has.

Since the thin veneer is bonded inside the groove, the grains are not noticeable, and it can be attached easily along the radius of the groove.

The mirror board is made of a homogeneous substrate such as plywood, LVL, particle board, fiber board, or MDF, so it is less likely to warp or crack due to changes in humidity, unlike solid boards.

We can provide wooden doors that are inexpensive, look good, and have stable quality.

[Brief explanation of drawings]

FIG. 1 shows the manufacturing process of a mirror plate used in manufacturing the door of the present invention, and FIG. 2 is a sectional view showing an embodiment of the door manufactured by the present invention. 1... Substrate, 2... Groove, 3... Thin veneer, 4...
... end plate, 5 ... sheet-like material, 6 ... vacuum press,
7... Frame material, 8... Decorative edge.

Claims (1)

[Claims] 1 A plurality of grooves 2 and recesses are formed on the surface of the regular substrate 1,
After forming the cross-sectional shape to have a smooth curved surface with a radius of about 100 mm or more, the thin veneer 3 is bonded to the entire surface with an adhesive, and the thin veneers are stacked so that the grains are in the recessed part, Then, it is pressed from the upper surface, and the thin veneer 3 is attached to the surface of the substrate 1 to form a mirror plate 4. After the back surfaces of the mirror plate 4 are bonded together, it is fitted into the frame material 7 via the decorative edge 8. A method for manufacturing a decorative veneer door characterized by the following.