JPH0623390U - Speaker device - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a speaker device which is easily attached and has little deterioration in sound quality. A bottom plate member having a mounting hole, a cabinet main body having a recess having substantially the same size as a side surface outer periphery of the bottom plate member, and a speaker unit attached to an opening connected to the recess of the cabinet main body, The bottom plate member is fixed to the mounting surface by the mounting means inserted in the mounting hole, and the mounting hole is closed by the mounting means, and the side surface portion of the bottom plate member is fixed to the mounting surface. The cabinet body and the bottom plate member form a closed space behind the speaker by fitting the recess of the cabinet body into the.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a speaker with a box to be mounted on an instrument panel (hereinafter referred to as instrument panel) of a vehicle.

[0002]

[Prior art]

 With the recent introduction of HI-FI audio equipment, small tweeters may be installed in the instrument panel of vehicles. FIG. N is a sectional view showing a conventional tweeter. The tweeter 10 is composed of a resin cabinet 1 and a tweeter unit 2, and a screw hole 11 formed by an insert nut is formed on the bottom surface of the cabinet 1.

The tweeter 10 is attached by aligning the positions of the mounting holes 31 opened in the instrument panel 3 with the screw holes 11 and screwing the mounting screws 4 into the screw holes 11 from the rear surface side of the instrument panel 3.

[0004]

[Problems to be solved by the device]

 When mounting the conventional tweeter 10, since the mounting screw 4 is screwed from the back side of the instrument panel 3, it is necessary to remove the instrument panel 3 from the vehicle, which is very troublesome. Further, although the screw hole 11 is provided in the cabinet 1, in order to form the screw hole 31 in the resinous cabinet 1 with an insert nut or the like, the protruding portion 12 is required inside the cabinet 1, and the space inside the cabinet 1 becomes smaller. There is also a problem that it decreases and it is difficult to obtain good acoustic characteristics.

The present invention solves such a problem.

[0006]

Means for Solving the Problems In order to solve the above problems, the present invention is a speaker device mounted on a mounting surface, wherein a bottom plate member having a mounting hole and a side surface outer periphery of the bottom plate member are provided. It has a cabinet main body having a recess of the same size, and a speaker unit attached to an opening connected to the recess of the cabinet main body, wherein the bottom plate member is fixed to a mounting surface by a mounting means inserted into a mounting hole. At the same time, the mounting hole is closed by the mounting means, and the recess of the cabinet body is fitted to the side surface of the bottom plate member with the bottom plate member being fixed to the mounting surface. The main body and the bottom plate member form a closed space behind the speaker.

[0007]

[Action]

 Since the cabinet main body and the bottom plate are separated, they can be fixed with the mounting screws from the front side of the mounting surface such as the instrument panel. Further, the mounting hole opened in the bottom plate member is closed by the mounting means, and the cabinet body and the bottom plate member are closed by fitting the recessed part of the cabinet body and the bottom plate member, so that the cabinet body is sealed. The degree is not lost.

[0008]

【Example】

 Embodiments of the present invention will be described below with reference to the drawings. 1 is a perspective view showing an embodiment of the present invention, FIG. 2 is a sectional view taken along the line AA of FIG. 1, and FIG. 3 is a sectional view taken along the line BB of FIG. Incidentally, the same parts as those in FIG. The speaker device 20 is composed of a cabinet body 5, a bottom plate member 6, a tweeter unit 2, a saran net 9, and the like.

The cabinet body 5 has an opening 55 to which the tweeter unit 2 is attached, a recess 51 into which the bottom plate member 6 is fitted, and an engagement hole 52 formed so that the bottom plate member 6 and the cabinet body 5 are fitted more strongly. A notch 53 for taking out the cord 7 connected to the tweeter unit 2 is formed. Further, the bottom plate member 6 includes a bottom surface portion 60, a side surface portion 63 rising from the outer periphery of the bottom surface portion, a mounting hole 61 for screwing the instrument panel 3, and a notch portion 64 for taking out the cord 7. The side surface portion 63 of the bottom plate member 6 has a shape that is slightly opened upward in the drawing, and the edge portion 66 of the side surface portion 63 has a shape that is slightly warped outward. . Further, a part of the cutout portion 64 of the bottom plate member 6 is formed with a flange portion 65 that fits into the slit 81 formed in the airtight bushing 8 attached to the code 7. Further, the side surface portion 63 is formed with an engagement protrusion 62 that protrudes at a position corresponding to the engagement hole 52 provided in the cabinet body 5.

Next, the mounting of the speaker device 20 thus configured to the instrument panel 3 will be described. First, the bottom plate member 6 is arranged at a desired mounting position of the instrument panel 3, and the tapping screw 67 is screwed into the instrument panel 3 through the mounting hole 61 to attach the bottom plate member 6 to the instrument panel 3.

Then, the bush 8 attached to the cord 7 is attached to the cutout portion 64 of the bottom plate member 6. At this time, the slit 81 of the bush 8 is fitted into the flange portion 65 of the cutout portion 64. Further, the side surface portion 63 of the bottom plate member 6 is fitted into the concave portion of the cabinet body 5. As a result, the edge portion 66 of the side surface portion 63 abuts on the step portion 54 of the cabinet body 5, and the engaging projection 62 and the engaging hole 52 engage with each other, so that the bottom plate member 6 and the cabinet body 5 are hermetically sealed. Is maintained. Further, since the mounting hole 61 opened in the bottom plate member 6 is closed by the head 68 of the tapping screw 67, air does not leak from the mounting hole 61.

Since the side surface portion 63 of the bottom plate member 6 is slightly outwardly opened, and the edge portion 66 is further warped further outward than the side surface portion 63, the cabinet body 6 has The concave portion 51 and the side surface portion 63 of the bottom plate member 6 are fitted more firmly, and the airtightness therebetween is improved. As described above, according to this embodiment, since the speaker box in the speaker device 20 is composed of the cabinet body 5 and the bottom plate member 6, the bottom plate member 6 can be screwed from the front surface side of the instrument panel 3. Installation workability is improved. Since the mounting hole 61 opened in the bottom plate member 6 is closed by the head 68 of the tapping screw 67, air does not leak from the mounting hole 61.

Further, since the side surface portion 63 of the bottom plate member 6 is slightly outwardly expanded and the edge portion 66 is further warped outward, the airtightness between the bottom plate member 6 and the cabinet body 5 is improved. Is kept good and the reproduction characteristics of the speaker device 20 are not deteriorated. Although the bottom plate member 6 is fixed by the tapping screw 67 in the above embodiments, for example, a bolt is embedded so as to project from the mounting surface of the instrument panel 3 or the like, and the mounting hole 61 is inserted into the bolt. Alternatively, the nut may be screwed into the bolt from the front side of the instrument panel 3.

In this case, the mounting hole 61 is closed by the bolt and the nut, and the reproduction characteristic of the tweeter device 20 is not deteriorated as in the above-described embodiment.

[0015]

[Effect of device]

 As described above in detail, according to the present invention, since the speaker box is composed of the cabinet body and the bottom plate member, the speaker box can be fixed with screws from the surface side of the mounting surface, and mounting workability is improved. improves. Further, the mounting hole opened in the bottom plate member is closed by the mounting means, and the cabinet main body and the bottom plate member are closed by fitting the concave portion of the cabinet main body and the side surface portion of the bottom plate member. Does not impair the degree of sealing.

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing an embodiment of the present invention.

FIG. 2 is a sectional view taken along line AA of FIG.

FIG. 3 is a sectional view taken along line BB of FIG.

FIG. 4 is a sectional view showing a conventional tweeter.

[Explanation of symbols]

 2: Tweeter unit 5: Cabinet body 51: Recessed portion 6: Bottom plate member 60: Bottom portion 61: Mounting hole 63: Side portion

Claims (1)

[Scope of utility model registration request] 1. A speaker device mounted on a mounting surface, comprising: a bottom plate member having a mounting hole; a cabinet main body having a recess having a size substantially the same as a side surface outer periphery of the bottom plate member; and a recess of the cabinet main body. And a speaker unit attached to an opening connected to the bottom plate member, the bottom plate member is fixed to a surface to be attached by an attachment means inserted into the attachment hole, and the attachment hole is closed by the attachment means, and the bottom plate member is The concave portion of the cabinet body is fitted to the side surface portion of the bottom plate member while being fixed to the mounting surface, and the cabinet body and the bottom plate member form a closed space on the back surface of the speaker. Speaker device.