JP3332314B2 - Manufacturing method of frame - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for manufacturing a frame having a core material covered with a surface decorative material.

[0002]

2. Description of the Related Art Conventionally, this kind of frame has been manufactured as follows. As shown in FIG. 3 (a), by providing a bending groove 2 having a substantially V-shaped cross section on the back surface of the front decorative material 1, the front decorative material 1 has a surface covering portion 1a, a side covering portion 1b, and a back end covering portion 1c. 3B, the surface coating 1a of the surface decorative material 1 is adhered to the surface of the core material 3 along the surface of the core material 3 as shown in FIG. 3
The side surface coating portion 1b of the surface decorative material 1 is adhered along the side surface of the core material 3, and the surface decorative material 1 is bent by the bending groove 2 so that the back surface end portion coating portion 1c extends along the end of the back surface of the core material 3. The back surface decorative material 4 is adhered to the back surface of the core material 3 so as to extend between the back surface end covering portions 1c, and the surface decorative material 1, the core material 3 and the back surface decorative material are arranged at the center in the width direction. 4 are cut in the longitudinal direction to form two frames A as shown in FIG. 3 (c).

[0003]

The frame A formed as described above has the back end covering portion 1c folded back and adhered to the back surface of the core material 3 (a portion indicated by reference numeral B in FIG. 4). The side surface of the core member 3 and the side surface covering portion 1 have dimensional variations in the core member 3
b, the front face decorative material 1 can be attached even if a gap S is formed between the front face b and the back face end covering portion 1c. However, there is a problem that material loss is large when makeup on the back side is unnecessary. In other words, extra back end covering portion 1c and back decorative material 4 are required, resulting in wasteful members.

[0004] The present invention has been made in view of the above description, and it is an object of the present invention to provide a material that is not wasted, and that adheres a cosmetic material to a core material in a reliable manner.

[0005]

In order to achieve the above object, a method for manufacturing a frame according to the present invention comprises forming a bent groove 2 having a V-shaped cross section on both sides on the back side of a surface decorative material 1. The surface covering portion 1a and the side surface covering portions 1b on both sides are formed at the same time, and a thin and flexible dimension absorbing portion 5 is formed at the center in the width direction of the surface covering portion 1a. 1 and cover the surface covering portion 1a, and bend the surface decorative material 1 by the bending groove 2 to cover and adhere the side surface covering portion 1b to the side surface of the core material 3. Then, the dimension absorbing portion 5 At the position, the surface decorative material 1 and the core material 3 are cut in the longitudinal direction to form two frame A
Is formed. With the configuration described above, even if the core material 3 has a dimensional variation, the dimensional variation of the core material 3 is absorbed by the dimensional absorbing portion 5 so that the side surface covering portion 1b
Can be stuck to the side surface of the core material 3 and bonded, and the frame A to which the surface decorative material 1 is securely bonded can be manufactured without covering the back side as in the conventional case. A frame A can be manufactured.

Further, a surface decorative material 1 such as a veneer, a decorative sheet or the like is laminated on a surface of a base material 6 such as a plywood to form the surface decorative material 1, and only the surface material 7 is provided at the center in the width direction of the surface covering portion 1a. It is also preferable that a concave groove 8 formed by cutting the base material 6 is formed so as to be left, and a portion of the remaining surface material 7 is formed as the dimension absorbing portion 5. In this case, the dimension absorbing portion 5 can be easily formed by cutting the concave groove 8 at the same time as the bending groove 2 is processed.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A surface decorative material 1 is formed by laminating and integrating a surface material 7 such as a veneer or a decorative sheet on a surface of a base material 6 such as plywood. FIG. 1 shows the back side of the surface decorative material 1.
As shown in (a), a bending groove 2 having a substantially V-shaped cross section is formed in the longitudinal direction on both sides in the width direction of the surface decorative material 1,
A surface covering portion 1a is provided at a center portion of the bending groove 2 as a boundary.
Side cover portions 1b are formed on both sides. In the case of this example, a pair of parallel bending grooves 2a are juxtaposed to bend in a chamfered shape when bent by the bending grooves 2, and a corner covering portion having a triangular cross section is provided between the bending grooves 2a. 2b is provided. Further, the surface covering portion 1 of the surface decorative material 1
At the center in the width direction of a, a concave groove 8 having a U-shaped cross section
The concave groove 8 forms a thin and flexible dimension absorbing portion 5 on the surface side. The groove 8 is formed at a depth corresponding to the thickness of the substrate 6.
The portion of the surface material 7 left by the perforation is used as the dimension absorbing portion 5. When forming the dimension absorbing portion 5 by forming the concave groove 8, it is preferable to reduce the remaining thickness as much as possible so that the adjustment can be easily performed at this portion. The width of the concave groove 8 is smaller than the saw width at the time of cutting described later. For example, a saw width of 3.2
mm, the width of the concave groove 8 is 2.5 to 2.0 mm.

After forming the bending grooves 2 and the dimension absorbing portions 5 on the back surface of the surface decorative material 1 by cutting as described above, an adhesive is applied to the back surface of the surface decorative material 1, and as shown in FIG. The surface decorative material 1 is bonded and integrated with the core material 3. That is, the core material 3
The surface coating 1a of the surface decorative material 1 is adhered along the surface of the surface decoration material 1, and the surface decorative material 1 is bent by the bending groove 2 so that the side surface coating 1b of the surface decorative material 1 extends along the side surface of the core material 3. And glue. At this time, even if the dimensions of the core material 3 vary, the dimensional variation can be absorbed by the dimension absorbing portion 5 (the dimension absorbing portion 5 becomes loose if the width of the core material 3 is small), and the core material 3 and the side surface covering portion 1b
There is no gap between After the surface decorative material 1 is bonded to the surface of the core material 3 as described above, the adhesive is cured by press molding, and thereafter, the surface decorative material 1 and the core material are formed at the dimension absorbing portion 5 at the center in the width direction. 3 is cut along the longitudinal direction with a saw in the longitudinal direction as shown in FIG.

In the above structure, since the dimension absorbing portion 5 does not extend, the size of the surface decorative material 1 with respect to the core material 3 needs to have a plus tolerance. That is, as shown in FIG. 2, when the variation in the width of the core material 3 is W ± 0.5 mm,
The width of the surface decorative material 1 is set to W + 0.5 mm to W + 1.0 mm. W + 0.5mm to W + 1.0mm means core material 3
From the maximum width dimension to the maximum width of the core material 3 +0.5 mm.

Further, the dimension absorbing portion 5 may be divided by a sharp cutter after or just before setting the surface decorative material 1 along the core material 3. When the dimension absorbing portion 5 is cut in this way, it is not necessary to make the size of the surface decorative material 1 with respect to the core material 3 a plus tolerance as described above.

[0011]

As described above, according to the present invention, a surface covering portion and both side surface covering portions are formed on the surface facing material by forming bent grooves having a V-shaped cross section on both sides on the back side of the surface facing material. Form a thin and flexible dimension absorbing part at the center in the width direction of the surface covering part, cover and adhere the surface covering part of the surface decorative material on the surface of the core material, and fold the surface decorative material with bending grooves After bending, the side covering portion is covered and adhered to the side surface of the core material, and thereafter, the surface decorative material and the core material are cut in the longitudinal direction at the position of the dimension absorbing portion to form two frames. Even if there is dimensional variation in the material, the dimensional absorption of the core material can be absorbed by the dimension absorption part and the side coating part can be adhered to the side of the core material and adhered. It is possible to manufacture a frame to which cosmetic materials are securely bonded, and to produce a frame at low cost without material waste. Also, when bonding the surface decorative material to the core material, it is connected by the dimension absorption part, so it does not fall apart when applying adhesive or bending and bonding the surface decorative material Can be adhered to.

In the invention according to claim 2 of the present invention, a surface decorative material such as a veneer or a decorative sheet is laminated on a surface of a base material such as plywood to form a surface decorative material, and A groove is cut out of the base material so that only the surface material remains at the center in the width direction, and the remaining surface material is used as a dimension absorption part, so when processing the bending groove, cut the groove at the same time The dimension absorbing portion can be easily formed, and can be easily manufactured by using the same groove processing equipment as that of the related art.

[Brief description of the drawings]

FIGS. 1A, 1B, and 1C are cross-sectional views showing steps of a manufacturing method according to the present invention.

FIG. 2 is an explanatory diagram illustrating a dimensional relationship between a core material and a surface decorative material.

FIGS. 3A, 3B, and 3C are cross-sectional views showing steps of a conventional manufacturing method.

FIG. 4 is a cross-sectional view illustrating a problem of a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Surface decorative material 1a Surface decorative part 1b Side decorative part 2 Bending groove 3 Core material 5 Dimension absorption part 6 Base material 7 Surface material 8 Concave groove A Frame

Claims (2)

(57) [Claims] 1. A surface-covering material is formed with a bent groove having a V-shaped cross section on both sides on the back side of the surface-coating material to form a surface covering portion and both side surface-covering portions in the surface-dressing material. Form a thin and flexible dimension absorption part in the center, cover and adhere the surface coating part of the surface decoration material on the surface of the core material, and bend the surface decoration material with bending grooves to form the side coating part. A method for manufacturing a frame, comprising covering and bonding the side surface of a core material and then cutting the surface decorative material and the core material in the longitudinal direction at the position of the dimension absorbing portion to form two frame frames. 2. A base material such as a veneer or a decorative sheet is laminated on the surface of a base material such as a plywood to form a surface decorative material, and the base material is left so as to leave only the surface material at the center in the width direction of the surface covering portion. 2. The method for manufacturing a frame according to claim 1, wherein a groove formed by cutting off the material is formed, and a portion of the remaining surface material is used as a dimension absorbing portion.