JPH0117905Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] This invention relates to a structure for mounting a speaker to a speaker box, and particularly to a structure for mounting a speaker having a decorative grill.

[Prior Art] Conventionally, in order to attach a speaker having a decorative grille to a butt-full plate of a box, as shown in FIG.
In most cases, a decorative grille 04 was placed in front of the speaker 02 and fixed to the full plate 01 using screws 05.

[Problems to be solved by the invention] In the conventional mounting structure described above, the speaker 0
2 and decorative grille 04 respectively
Separate screws 03 and 05 are required for fixing to 1, which causes an increase in the number of parts and an increase in the number of installation steps.

Furthermore, since the mutual positional relationship between the full board 01, the speaker 02, and the decorative grille 04 is based on the full board 01, there is a drawback that positional deviations between the speaker 02 and the decorative grille 04 are likely to occur.

In particular, resin molded products are often used for the decorative grille 04, but as is well known, synthetic resin molded products have a large shrinkage deformation during molding, so there is a large molding difference, and the thermal deformation due to temperature during use is relatively large. Therefore, it is difficult to accurately position the decorative grille 04 and the speaker 02.

In addition, in order to reduce the number of parts, for example,
A mounting structure in which the decorative grille and the speaker are fixed by a common fastening means, as disclosed in No. 84-1001, has also been considered.

However, this structure does not solve the problem of positioning the decorative grille and the speaker.

[Means for Solving the Problems] This invention includes a butt-full plate having a counterbore portion, a speaker having a hole formed on the outer periphery of the frame having a raised edge portion that fits into the counterbore portion, and a speaker that fits into the hole. a cylindrical protrusion that fits together; and a decorative grille formed with a cylindrical bulge that is connected to the protrusion and presses the outer periphery of the frame in the vicinity of the hole; This is a speaker mounting device in which a speaker and a decorative grille are attached to a buttful plate using a mounting screw inserted through the center hole of a columnar bulge.

[Embodiment] This invention will be described with reference to an embodiment shown in FIGS. 1 and 2. In the figures, 1 is a speaker box buffle plate, 2 is a speaker, and 4 is a decorative grill.

The full plate 1 of the speaker box has a screw hole 1b having a counterbore portion 1a and into which the mounting screw 3 is screwed.
A hole 2b and a peripheral edge of the hole 2b are made to stand up on the outer periphery of the frame 2a of the speaker 2, and a raised edge 2c that fits into the counterbore portion 1a,
The decorative grille 4 includes a cylindrical protrusion 4a that fits into the hole 2b, a cylindrical protrusion 4b that is connected to the cylindrical protrusion 4a and presses the frame 2a at the periphery of the hole 2b, and the circular cylindrical protrusion 4b. A hole 4c is formed through the center of the columnar bulge 4b and the columnar protrusion 4a, respectively.

The mounting screw 3 is inserted through the hole 4c.

In addition, 4d is a paper arrow holder, 2d is a paper arrow, and 2e is the outermost periphery of the diaphragm.

According to this structure, the counterbore portion 1 of the full board 1
The speaker 2 is arranged so that the upright edge 2c of the frame outer periphery 2a fits into the frame outer periphery 2a, and the decorative grill 4 is arranged so that the cylindrical projection 4a fits into the hole 2b of the frame outer periphery 2a. The mounting screw 3 inserted into the hole 4c of the decorative grille 4 is inserted into the hole 1 of the full plate 1.
By screwing into b, the full board 1, the speaker 1, and the decorative grille 4 can be connected at the same time.

[Effects of the invention] According to the invention explained above, (1) the speaker and the decorative grill can be attached using a common fastening means (mounting screw);
The number of parts and the number of installation steps can be reduced.

(2) The three parts are positioned relative to each other by the positioning action of fitting the counterbore and the upright edge and the upright edge and the cylindrical protrusion with each other, so positioning can be done easily and accurately. , etc. It is possible to obtain extremely useful effects in practice.

[Brief explanation of drawings]

FIG. 1 is a cutaway perspective view of a main part of a speaker mounting structure according to an embodiment of the invention, FIG. 2 is a sectional view thereof, and FIG. 3 is a partially cutaway perspective view of a conventional speaker mounting structure. 1a: Spot facing portion, 1: Full plate, 2c: Upright edge, 2b: Hole, 2a: Frame outer periphery, 2: Speaker, 4a: Cylindrical protrusion, 4b: Cylindrical bulge, 4: Decorative grill , 4c: center hole, 3: mounting screw.

Claims (1)

[Scope of utility model registration request] A loudspeaker 2 having a rounded plate 1 having a counterbore portion 1a formed therein, and a hole 2b having a raised edge portion 2c that fits into the counterbore portion 1a formed in a frame outer peripheral portion 2a.
and a cylindrical protrusion 4a that fits into the hole 2b,
The frame outer peripheral portion 2 is connected to the protrusion 4a.
a decorative grille 4 in which a cylindrical bulge portion 4b is formed to press the hole 2b in the vicinity of the hole 2b;
A speaker mounting device characterized in that the speaker 2 and the decorative grille 4 are mounted to the buttful plate 1 using mounting screws 3 inserted through the center hole 4c of the cylindrical protrusion 4a and the cylindrical bulge 4b.