JPS6121915Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a speaker grill in which a grill cloth is firmly adhered to the grill frame and a decorative plate is firmly attached to the bottom surface surrounded by a groove.

The speaker grill serves to cover the front of the speaker. This conventional speaker grill will be explained with reference to FIGS. 1 to 4.

1 to 4 show conventional speaker grills. In FIGS. 1 and 2, 1 is a grill frame, 2 is a recess provided in the grill frame, and 3 is a recess provided in the grill frame.
4 is the bottom surface of the recess 2, 4 is a hole provided in the bottom surface 3, 5 is a grill cloth, 6 is an adhesive for adhesively fixing the grill cloth 5 to the grill frame 1, 7 is a decorative plate, and 8 is the hole 4 The legs of the decorative plate 7 inserted into the
Reference numeral 9 denotes a double-sided tape for adhesively fixing the decorative plate 7 to the grill cloth 5. Note that B is a base and J is a clamping jig.

Next, the attachment of the grill cloth 5 and the decorative plate 7 to the grill frame 1 will be explained.

First, apply adhesive 6 to grill frame 1, and
Place it on top. The grill cloth 5 is pressed onto it together with the pressing jig J (Fig. 2). As a result, the grill cloth 5 is adhesively fixed to the grill frame 1 with the adhesive 6. Then, double-sided tape 9 is adhered to the back surface of the decorative plate 7 on the grill cloth 5 in the recess 2, and the legs 8 are pressed while being inserted into the holes 4 to be adhesively fixed (third
figure). As a result, the speaker grill shown in FIG. 1 is completed.

However, in such a speaker grill, when pressing with the pressing jig J, a load is applied to the corner portion of the recess 2, so the grill cloth 5 at this corner portion may be torn or the adhesive 6 may ooze out. Atsuta (Figure 4). Furthermore, if a large amount of adhesive 6 is applied to increase adhesive strength, the adhesive 6 will smear significantly, and the usable adhesive 6 will be limited. Also,
When the decorative plate 7 is adhesively fixed on the grill cloth 5 on the bottom surface 3, it is fixed on the grill cloth 5 with double-sided tape 9, so that sufficient adhesive strength cannot be obtained. Furthermore, when trying to obtain adhesive strength by inserting the legs 8 of the decorative plate 7 into the holes 4, there was a drawback that the holes 4 could not be easily found because of the grille cloth 5.

This invention was developed in view of the above-mentioned drawbacks, and provides a speaker grill in which a grill cloth and a decorative plate are firmly adhesively fixed to a grill frame. This invention will be explained below based on the drawings.

5 to 7 show an embodiment of this invention, in which 11 is an annular groove formed on the outer periphery of the bottom surface 3 of the recess 2, 14 and 15 are adhesives, and C is a cutter. Note that the other symbols are the same parts as in FIGS. 1 and 2.

Next, the attachment of the grill cloth 5 and the decorative plate 7 to the grill frame 1 will be explained.

First, adhesive 14 is applied to grill frame 1 and placed on base B. The grill cloth 5 is pressed onto it together with the pressing jig J (FIG. 5). the result,
The grill cloth 5 is adhesively fixed to the grill frame 1 with an adhesive 14. Then, in order to remove portions of the grill cloth 5 that are not fixed with the adhesive 14, the grill cloth 5 is cut with a cutter C (FIG. 6). Since the cut grill cloth 5 is not coated with adhesive 14, it can be easily removed. moreover,
When attaching the decorative plate 7 to the bottom surface 3, attach the decorative plate 7
The decorative plate 7 is attached to the bottom surface 3 by applying adhesive 15 to the back surface of the plate, inserting the legs 8 into the holes 4 and pressing them (FIG. 7).

Since the speaker grill is constructed in this way, the adhesive strength of the grill cloth 5 to the grill frame 1 is increased by the product of the entire circumference of the groove 11 and the length L, that is, the increased area. Further, the inner part of the groove 11 has the effect of preventing the cut portion of the grill cloth 5 and the excess adhesive 14 from spilling out. That is, since the cut portion of the grill cloth 5 can be stored in the inner part of the groove 11, peeling of the grill cloth 5 can be prevented, and excess adhesive 14 can be retained, so that the appearance is not spoiled. . Furthermore, since there is no grille cloth 5 on the bottom surface 3, the legs 8 can be easily inserted into the holes 4.

Figure 8 shows another embodiment of this invention.
12 is an annular groove formed on the outer periphery of the bottom surface 3 of the recess 2; 13 is a stepped portion of the groove 12; a step d is provided between the bottom portion 3 and the stepped portion 13;

In this embodiment, when the decorative plate 7 is adhesively fixed to the bottom surface 3, a step d of at least the grille cloth 5 or more is provided between the bottom surface 3 and the stepped portion 13 in consideration of the thickness of the grille cloth 5. The grille cloth 5 and the lower surface of the decorative plate 7 do not come into contact with each other when the decorative plate 7 is attached.

The effect is similar to the previous embodiment.

FIG. 9 shows yet another embodiment of this invention,
The bottom surface 3 of the recess 2 is sloped, and the side surfaces of the recess 2 and the stepped portion 13 of the groove 12 are sloped accordingly.

In this embodiment, the bottom surface 3, the side surface, and the stepped portion 1
Since 3 is an inclined surface, the decorative plate 7 can be easily seen.

In the above embodiment, the hole 4 was provided on the bottom surface 3, and the legs 8 were provided on the decorative plate 7. However, if the decorative plate 7 is directly adhesively fixed to the bottom surface 3 to increase the adhesive strength,
It does not necessarily need to be provided. In addition, the adhesive 14,
No. 15 has an increased adhesion area, so a normal adhesive may be used. Furthermore, the adhesive 15 may be double-sided tape. Alternatively, the pressing jig J and cutter C may be linked to perform both steps in one step.

As explained in detail above, according to the speaker grill of this invention, an annular groove is provided on the bottom of the recess provided in the grille frame, and by removing the grill cloth on the bottom, a decorative plate can be placed inside the recess. can be firmly attached. In addition, sufficient adhesive strength can be obtained, so the adhesive can be freely selected without being limited. Furthermore, the grooves can prevent the cut portion of the grill cloth and the adhesive from extruding, which has the advantage of not detracting from the appearance.

[Brief explanation of the drawing]

Figures 1 to 4 show a conventional speaker grill. Figure 1 is a perspective view, Figure 2 is a manufacturing process diagram, Figure 3 is an enlarged sectional view of the concave portion, and Figure 4 is a decoration. An enlarged cross-sectional perspective view of the recess before the plate is attached, and Figures 5 to 7 show one embodiment of this invention. Figures 5 and 6 are manufacturing process diagrams, and Figure 7 is a diagram of the groove portion. 8 and 9 are enlarged sectional views of a groove portion showing other embodiments of this invention. In the figure, 1 is the grill frame, 2 is the recess, 3 is the bottom, and 5
is a grill cloth, 7 is a decorative plate, 11 and 12 are grooves,
13 is a stepped portion, and 14 and 15 are adhesives.

Claims (1)

[Scope of utility model registration request] A recess is provided in the grill frame, an annular groove is formed on the outer periphery of the bottom of the recess, a grill cloth is bonded to the surface of the grill frame except for the bottom surface with adhesive, and a decorative plate is attached in the recess. A speaker grill with a unique feature.