JPH0132457Y2 - - Google Patents

Description

[Detailed description of the invention] This invention prevents misalignment of the mounting holes of the speaker unit and the waterproof cover by integrating the speaker unit and the waterproof cover in advance when installing the speaker in a car stereo, etc. This invention relates to a waterproof cover attachment mechanism for a speaker.

A speaker receives electrical signal energy from a power amplifier and converts it into air vibrations to provide the user with the desired sound.It is a type of energy converter, and due to its nature, it is a very It is one of the important devices. Therefore, in order for these to perform their normal functions, protection against the environment is one of the essential requirements.Especially in cars that run outdoors in all seasons and weather, protection against rain, snow, etc. outside is essential. The need to protect speakers is an even more important issue, and waterproof covers for speakers are provided for this purpose.

Incidentally, since automobiles and the like are intended for traveling, they are inevitably subject to vibrations, and for this purpose, sufficiently reliable fixing means are required. In addition, in terms of installation, speakers with waterproof covers are generally attached to the car door, which makes the installation process complicated, and since the installation process is often done after the car is purchased, it is easy for ordinary people to install. The entire device is required to be able to perform installation work. Therefore, it goes without saying that a mechanism that is as simple and as reliable as possible is required for the installation work.

However, in conventional speakers for in-vehicle stereos, etc., the speaker grill, speaker unit, and waterproof cover are each configured separately. Therefore, when installing and assembling this, it is necessary to align the mounting holes of each part, insert the mounting screws, and screw in the mounting screws. ,
The drawback is that considerable skill is required in order to attach each part without shifting its position.

This invention was made to eliminate the above-mentioned drawbacks, and when installing car speakers,
On the surfaces where the waterproof cover and the speaker frame are in contact with each other, a plurality of protrusions are provided on one side, and holes are provided at positions corresponding to the protrusions on the other side, and the protrusions are fitted into the holes. The present invention provides a waterproof cover mounting mechanism for a speaker in which the waterproof cover and the speaker unit are integrated in advance and the pitch of mounting holes between the speaker unit and the waterproof cover is prevented from being misaligned.

Hereinafter, the present invention will be described with reference to embodiments. FIGS. 1 and 2 are diagrams showing an embodiment of the present invention.
In Figure 1, a is a back view of the waterproof cover, b is a sectional view taken along the line A-A in Figure 1a, c and d are enlarged views of the protrusions of the waterproof cover, c is a front view, and d is the C of c.
-C is a cross-sectional view, and FIG. 2 is a view showing the state in which the waterproof cover is attached to the speaker unit, where a is a front view and b is a cross-sectional view.

In Figs. 1 and 2, reference numeral 1 denotes a waterproof cover made of synthetic resin, which has a semicircular shape (see Fig. 1a), and is attached to the speaker unit 2 (see Fig. 1a).
(see figure), protects the speaker unit 2 from outside rain, snow, etc. Reference numeral 3 denotes a convex portion integrally formed on the waterproof cover 1, which is provided on the surface where the surface 4 of the waterproof cover 1 comes into contact with the surface 5 of the speaker unit 2. In this embodiment, there are two convex portions. Further, a hole is provided in the surface 5 of the speaker unit 2 at a position corresponding to the convex portion 3 of the waterproof cover 1. This convex part 3 is divided into two protrusions by a groove 3a as shown in FIG. After that, the force that expands outward due to elasticity increases the frictional force between the hole and the corresponding surface, and the key part provided on one protrusion engages with the hole in the frame of the speaker unit to prevent it from coming off. , the convex portion 3 is securely fixed in the hole of the speaker unit into which it is fitted.

In addition, numeral 7 indicates long holes for attaching the speaker, and there are four long holes provided on the outer periphery of the speaker frame. The holes match (Figure 3a).

Reference numeral 8 designates the front grill of the speaker, and mounting holes 9 are provided on the outer periphery of the mesh opening facing the directional sound surface of the speaker.
The pitches match the long holes 7. (Figure 3c).

Furthermore, four bosses 10 are provided on the back surface of the front grill 8, into which countersunk screws 12 are screwed from the speaker unit side. 11 is front grill 8
The protrusion provided on the flange portion of the speaker unit 2 comes into contact with the flange portion of the speaker unit 2.

Next, the assembly procedure will be explained. First, screw the countersunk screw 12 into the boss 10 of the front grill 8 from the back side of the speaker unit 2. Then, by tightening the protrusions 11 until they come into contact with the flange portions of the speaker unit, the front grill 8 and the speaker unit 2 are integrated, and the positions of the mounting holes 9 of the front grill and the long holes 7 of the speaker unit 2 are adjusted as shown in FIG. It is possible to match as shown in a.

At this time, since the front grill 8 was attached using the countersunk screws 12, there is no member protruding from the back surface of the flange portion of the speaker unit.

Next, by inserting the convex portion 3 of the waterproof cover 1 into the hole of the flange portion of the speaker unit, the waterproof cover 1 is fixed with the surface 4 in contact with the surface 5 of the speaker unit 2.

Therefore, the position of the mounting hole 6 of the waterproof cover 1 can be aligned with the elongated hole 7 of the speaker unit 2. That is, since the front grill and waterproof cover are attached from the front and back sides using the holes provided in the speaker unit 2, the positional relationship of these parts can be determined accurately. Long hole 7 and waterproof cover 1
The positions of the mounting holes 6 can be easily matched.

Then, the front grill 8, speaker unit 2, and waterproof cover 1 that are assembled together can be mounted in a predetermined position by inserting mounting screws into the mounting holes 9 from the front of the front grill as shown in Figure 3c. .

In the above embodiment, the convex part is provided on the waterproof cover side and the hole part is provided on the speaker unit side, but it is possible to conversely have a convex part provided on the waterproof cover side and the convex part on the speaker unit side. can also receive similar effects. In addition, the front grill 8 is an integrated speaker unit 2.
It is also possible to fix the waterproof cover in a predetermined position with screws and then fit it onto the flange of the speaker unit in the same way as in the conventional case. Furthermore, the elongated hole 7 of the speaker unit, the mounting hole 6 of the waterproof cover, and the mounting hole 9 of the front grill may be U-shaped notches with one end open.

The present invention has the above-mentioned configuration and effects, and when installing a car speaker,
By integrating the speaker unit and the waterproof cover in advance, it is possible to prevent misalignment of the mounting holes of the speaker unit and the waterproof cover, thereby making it possible to easily and reliably install and assemble the speaker system. It is something that can be done.

[Brief explanation of the drawing]

Figures 1 and 2 are views showing one embodiment of the present invention, and Figures 1a and 2b are views showing a waterproof cover, where a is a back view, b is a cross-sectional view (viewed from the AA arrow in a), c and d are enlarged views showing the protrusion provided on the waterproof cover, c is a front view, d is a cross-sectional view (viewed from the CC arrow in c), and Figure 2 shows the waterproof cover attached to the speaker unit. In the figures, a is a front view, b is a sectional view (viewed from the BB arrow in a), FIG. and c is a front view of one embodiment of the present invention. 1...Waterproof cover, 2...Speaker unit,
3...Protrusion, 4, 5...Contact surface, 6...Mounting hole.

Claims (1)

[Scope of utility model registration request] When installing the speaker, on the surfaces where the waterproof cover and the speaker frame are in contact with each other, a plurality of protrusions are provided on one side and holes are provided at positions corresponding to the protrusions on the other side, and the holes are filled with the holes. A waterproof cover for a speaker, characterized in that the waterproof cover and the speaker unit are integrated in advance by fitting a convex part, and the mounting holes provided in the speaker unit are aligned with the mounting holes provided in the waterproof cover. Mounting mechanism.