JPH0744746B2 - Speaker grill manufacturing method - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for manufacturing a speaker grill assembled by folding.

2. Description of the Related Art In recent years, speaker grills often have a frame formed by resin molding and a net material is thermocompression bonded, but the trend of small-volume production of multiple models has increased, and the cost weight of mold costs for resin molded products is large. Has become. On the other hand, if the frame is made of wood, the mold cost is unnecessary, but the processing cost will be high.

Hereinafter, a method for manufacturing the above-described conventional speaker grill will be described with reference to the drawings.

FIG. 7 and FIG. 8 show a conventional example in which a net cloth is thermocompression bonded to a resin molding frame. In FIG. 7, 1 is a resin molding frame, 1a is an attachment for attaching the speaker grill to the speaker box, 1b is a reinforcing bar, and 2 is a net cloth. FIG. 8 shows the completed state.

9 to 11 show a conventional manufacturing method in which the frame is assembled from wood and the net cloth is fixed with a staple or the like. 9th
In FIG. 10 and FIG. 10, 3 is a plate material, 4 is a triangular root, 5 is a reinforcing bar, 6 is a wooden frame attachment for attaching the speaker grill to the speaker box, and 7 is a staple, and the completed state is shown in FIG. Show.

FIGS. 12 to 18 show a conventional example in which a decorative sheet provided with a decorative sheet of vinyl chloride or the like is processed into an L shape, folded to assemble a frame, and then the net cloth is thermocompression bonded to the decorative sheet. In FIGS. 12 to 17, 8 is a decorative plate, and 9
Is a decorative sheet, 10 is a first V-groove, 11 is a second V-groove, and 12 is a triangular root provided with an attachment for attaching the speaker grill to the speaker box. The completed state is shown in FIG.

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention However, in the above-described manufacturing method, if a resin molding frame is adopted, the die cost becomes large, and if the frame is made of wood, the processing cost becomes large. Further, when the folding method is used with wood as in the third example, the degree of freedom in design is reduced because the cross-sectional shapes of the sides are the same. Therefore, in the present invention, it is possible to change the cross-sectional shape of each side by using the folding method, which is a wooden that does not require mold costs and has a relatively low processing cost, and it is possible to produce a wide variety of products in small quantities with great design freedom. An inexpensive speaker grill manufacturing method is provided.

Means for Solving the Problems In order to solve the above problems, the method for manufacturing a speaker grill according to the present invention uses a V-groove as a boundary after forming a rectangular groove in the longitudinal direction of wood and a V-groove in the width direction. After bending it into a frame and fitting a triangular root etc. into the rectangular groove to form a wooden frame,
The cross-sectional shape of each side is processed by a cutting tool, and the net cloth is fixed to the wooden frame.

Effect The present invention uses the above-described manufacturing method to groove the cross section of wood into a cross-sectional shape suitable for forming a frame, and does not use a mold by forming a wooden frame by the folding method, so that no mold cost is required. Moreover, by processing this wooden frame into the shape required for the design, and fixing the net material to complete it, it is suitable for high-mix low-volume production with a large degree of freedom in terms of design.

Embodiment An embodiment of the present invention will be described with reference to FIGS. 1 to 6. In FIG. 1, reference numeral 13 denotes wood that has been grooved to be assembled in a frame, and 13a denotes a groove provided in the longitudinal direction. Second to next
As shown in Fig. 3, the V-groove 14 is machined in the width direction and bent into a frame shape, and the triangular root 12 provided with a mounting tool for mounting the speaker grill to the speaker box and the reinforcing bar 5 are fitted together to form a wooden frame. Complete. Next, as shown in FIG. 4, it is processed into a shape required for design. Reference numeral 15 is a cutting tool for processing the cross section. If 15 is changed, the cross-sectional shape of the four sides can be processed freely within the range of the plate thickness. An example thereof is shown in FIGS.
Shown in. Here, 16 is a portion removed by a cutting tool. Next, as shown in FIG. 6, net material is attached to complete the speaker grill. At this time, the net cloth may be fixed by a staple or by adhesion, or if a decorative sheet provided with a decorative sheet of vinyl chloride or the like is provided on the net cloth fixing surface of the wooden frame, as shown in the third example of the conventional example. Similarly, the net cloth can be fixed by thermocompression bonding.

EFFECTS OF THE INVENTION As is apparent from the above-described embodiments, according to the present invention: 1. Since a plate material is processed without using a die, die cost is unnecessary.

2. Since the folding method is used, the number of units to be assembled as a frame can be significantly reduced compared to the ordinary frame method.

3. Since the folding method is used, the dimensional accuracy is high when completed as a wooden frame.

4. Since the folding method is used, V in the width direction
The size of the wooden frame can be freely selected by changing the position of the groove.

5. Processing the cross-sectional shape Since the cross-sectional shape can be changed freely by changing the shape of the cutting tool, there is great freedom in design.

6. Due to the above advantages, low-volume, high-mix production that meets the needs of the times can be realized at low cost.

And so on.

[Brief description of drawings]

1 to 4 are perspective views showing a manufacturing process of a speaker grille according to an embodiment of the present invention, FIGS. 5a to 5c are sectional views of the same wood after processing, and FIG. 6 is a perspective view of the speaker grille. Figure, 7th
FIG. 8 is a perspective view showing the manufacturing process of the first conventional example, and FIGS. 9 to 11 are perspective views showing the manufacturing process of the second conventional example.
12 to 18 are perspective views showing the manufacturing process of the third conventional example. 2 ... Net cloth, 13 ... Wood, 13a ... Longitudinal rectangular groove, 14 ... Width V groove, 15 ... Cutting tool.

Claims (1)

[Claims] 1. A wood is formed by forming a rectangular groove in the longitudinal direction and a V groove in the width direction on a piece of wood, bending the frame in a frame shape with the V groove as a boundary, and fitting and adhering a reinforcing member such as a triangle root to the rectangular groove. Form a frame,
Then, a cross-sectional shape of each side is processed by a cutting tool, and then the net material is fixed to the wood, the manufacturing method of the speaker grill.