JPH03235600A - Manufacture of speaker enclosure - Google Patents

Abstract

PURPOSE:To reduce slack or expansion of a decorative sheet or the like by applying curved face processing to a corner when a base member is a flat place, adhering the decoration plate and cutting only the base member at a prescribed V cut while leaving the decoration plate. CONSTITUTION:A folding position of an enclosure member 1 of a flat plate shape is decided, and cutting process with a cut depth H and radius R of curvature is applied to both cut width while the position is taken as the center, a decorative sheet 2 applied with an adhesives is adhered by a laminate member. Then V cut processing 1c is implemented by taking a folded position opposite to the curved face processing 1b of the enclosure member 1 as the center. In this case, the base member is cut off but the decorative sheet 2 is not cut off, An adhesives 3 is applied to the V cut processing face and the decorative sheet 2 is bent in L-shape and the separated V cut processing faces are butted and bonded. Thus, generation of slack or expansion of the decorative sheet is reduced.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a speaker enclosure whose corner portions are formed into curved surfaces, and a method of manufacturing the same.

[Conventional technology]

Fig. 5 is a partially detailed view showing a conventional speaker enclosure disclosed in, for example, Japanese Patent Application Laid-Open No. 83-275296. In Fig. 9, (1) is one part of the enclosure, and (ja) is one part of the enclosure. The base material is the lauan veneer. (1b) is the curved surface processed on one side of the end of the lauan veneer (1a). (jc) is the curved surface processed portion (
V-cut part processed on the opposite side of 1b), (2) is a decorative board, (3) is an adhesive, and (4) is a corner board.

In Fig. 5, the lauan veneer (1&) is divided into one piece and its curved surface (1b) is applied with adhesive (3) and pasted at regular intervals on the decorative board (2). and dry.

After drying, the cut portions of adjacent members are butted together and pasted together, corner blocks (4) are pasted and fixed inside the resulting corner portions, and the curved surfaces of the corner portions are sequentially processed. [Issues to be solved] Conventional speaker enclosures are constructed as described above, so the base member of the enclosure is divided into each side, each end face is processed with a curved surface, and the base member of each enclosure is placed on a decorative board at a certain level. If the spacing is not set and adhered accurately, there will be problems such as sagging of the decorative board after bending the corners and the occurrence of blisters on the curved corners.

This invention was made to solve the above-mentioned problems, and the base member of the enclosure is pasted on a sheet-like decorative board before being divided into sides, and then this decorative board is cut. This method cuts only the base member of the enclosure without cutting the base member of the enclosure, so there is no need for highly accurate setting of the base member of the enclosure and the decorative board. The purpose is to provide a manufacturing method for -・ -.

C. Means for Solving the Problems] A method for manufacturing a speaker enclosure of the present invention used in an audio reproduction device and having a curved corner portion.C. A step of applying a curved surface to the position that will become the curved surface, a step of pasting a sheet-like decorative board made of an elastic material to the curved surface, and a step corresponding to the position where the curved surface was applied to the other surface of the base material. The process consists of the following steps: V-cutting the base material, separating the base material, and bonding the base material.

[Effect]

When the base member of the enclosure is a flat plate, the corners are curved and a decorative board is pasted on top.

Thereafter, only the base member is cut by a predetermined V cut, leaving the decorative board, so that the base member and the decorative board are positioned as if they were one piece.

[Embodiments of the invention]

Embodiments of the present invention will be described below with reference to the drawings.

Figure 1 is an intermediate process diagram of the lauan veneer, which is the enclosure base material in a flat plate state, with a decorative board bonded after the corners have been curved. Figure 2 shows the lauan veneer in Figure 1
Intermediate process diagrams in the cut state, Figures 3 and 4 are perspective views of different embodiments.

In the figure, (ri, (1b), (1c),
(21, f3) is the same as in FIG. 5 of the conventional example) 2) Duplicate explanation will be omitted. (1d) is the space created between the decorative board (2) created when the enclosure part (11) was curved (ib), and is also the cutter allowance when cutting V. R is the curved surface The radius of curvature for processing (1b), H is the curved surface (
1b) depth of cut.

D is the cutting width of the curved surface (1b), and the following relationship holds between R, H, and D, respectively.

H-R (1-1I!n45''), Dw-2R Next, the processed hand condyles are shown.

+11 Determine the bending position of one plate-shaped enclosure member (1). Using this position as the center, cutting is performed from both ends of the width of the cut to a depth of cut H with a radius of curvature R.

(2) Enclosure part fil that has undergone the above processing
The decorative board (2) coated with the adhesive (3) is adhered to the laminate material. As a result, the processing progressed to the state shown in Figure 1,
A space (1d) is created.

(3) Curved surface machining of enclosure part (1) (1)
Perform V-cut processing (1C) using the bending position of the opposite side as the center as shown in b). At this time, the base member is cut, but the decorative board (2) is not cut.

(4) Apply adhesive to the v-cut surface and create a decorative board (2)
Bend it into an L shape, and then attach the separated V-cut surfaces to each other and glue them together. The state shown by the two-dot chain line in FIG. 2 is completed.

'III, Figure 3 shows a single plate enclosure part (1)
This is an example in which curved surfaces (1b) are applied at four locations, and one location is joined by a simple butt so that curved surfaces appear at the short corners of the four locations.

In addition, Figure 4 shows nine examples in which curved surfaces (1b) are applied to one member of a single plate enclosure in two places, and the three-sided enclosure is constructed by processing it as one piece without dividing it, so that a straight curve appears at the corner. It is.

In the above embodiment, the curved surface of a part of the corner is an arc, but it may be a curved surface other than one arc.

Further, in the embodiment, an example of a rectangular shape was shown.

It may also be a polygon, such as a hexagon.

The decorative board is not limited to PVC sheets, but may also be paper, cloth, leather materials, or decorative polymer sheets.

〔Effect of the invention〕

As described above, according to the present invention, the corners are joined by curved surfaces without dividing the sides.

Compared to the conventional manufacturing method, where the corners are curved and each independent side is adhered to the decorative board while adjusting the dimensions, since it can be processed as if it were an integral enclosure.

It is possible to provide a manufacturing method that has an improvement effect, such as reducing the cause of sagging, tautness, etc. of the finished decorative board, and greatly improving the processing time.

[Brief explanation of drawings]

FIGS. 1 and 21A are intermediate process diagrams showing an embodiment of the present invention, and FIGS. 3 and 4 are perspective views of a speaker cabinet that is an embodiment of the present invention. FIG. 5 is a partial detailed view of a conventional embodiment. In the figure, (1) is an enclosure member, (+b
) is the curved surface processed part, (1c) is the V cut processed part, (2)
is a decorative board, and (3) is an adhesive. Note that in FIG. 9, the same reference numerals indicate the same or the same functions.

Claims (1)

[Claims] In a speaker enclosure that is used in an audio reproduction device and has a curved corner, a step of processing a curved surface at the corner on one surface of a flat base material that is the base of the enclosure; A step of pasting a sheet-like decorative board made of an elastic material on the side that has been subjected to the curved surface processing, and a V cut is made on the other surface of the base material corresponding to the position where the curved surface processing has been performed, and the base material is A method for manufacturing a speaker enclosure, comprising: a step of separating; a step of bending the decorative board; and a step of abutting and adhering the V-cut surfaces of the divided base materials.