JPH0749904Y2 - In-vehicle speaker mounting device - Google Patents

Description

[Detailed Description of the Invention] [Outline] Regarding a mounting device for a vehicle-mounted speaker using a spacer, the rear part of the vehicle-mounted speaker is mounted on the surface of a mounting plate for the purpose of firmly mounting it with only one screw. In a mounting device for an in-vehicle speaker that is inserted into and fixed to a speaker mounting hole from the side, a flange portion having a diameter larger than the hole is provided on the opening peripheral edge,
In addition, the flange of a bottomed cylindrical spacer provided with a slit for back pressure release of the speaker is brought into contact with the periphery of the hole from the back side of the mounting plate, and is inserted into a small hole at the center of the bottom surface of the spacer. The screw is screwed into the center of the back surface of the speaker to be fastened.

[Field of Industrial Application] The present invention relates to a mounting device for an in-vehicle speaker using a spacer.

In-vehicle speakers are roughly classified into a stationary type that is placed on a rear tray and the like, and an embedded type in which a rear portion is buried by making holes in a rear tray and a door trim. Since it is necessary to fix the embedded speaker with screws, it is desired to simplify the mounting work.

[Conventional technology]

FIG. 4 is an explanatory view of mounting a conventional vehicle-mounted speaker. Reference numeral 10 is a speaker, 20 is a mounting plate for a rear tray, and 30 is a fixing screw. The speaker 10 is provided with a flange 12 having a small hole 11 for screw penetration, and a rear surface portion 13 including a magnetic circuit is projected to the rear. The mounting plate 20 has a circular hole 21 into which the back surface portion 13 of the speaker 10 is inserted. The speaker 10 is fixed by applying a nut 40 to the back surface of the mounting plate 20 and screwing a screw 30 inserted into the small hole 11 of the flange 12 and the small hole 22 of the mounting plate 20 into the nut 40.

[Problems to be solved by the device]

 The mounting method shown in FIG. 4 has the following problems.

(1) Since the screw 30 is inserted from the front surface side of the mounting plate 20 and screwed into the nut 40 on the rear surface side, the mounting work cannot be performed by one person.

(2) Since a plurality of screws 30 (for example, four) are required, the number of parts is large and the mounting work takes time. In particular, if the iron plate 50 is below the mounting plate 20, the work of drilling the small holes 22 is difficult.

(3) Since the holes 21 must be formed in the mounting plate 20,
The strength of the mounting surface will inevitably decrease.

The present invention aims to solve these problems by using a spacer.

[Means for Solving the Problems]

The present invention relates to an in-vehicle speaker mounting device in which a back surface of an in-vehicle speaker is inserted into a speaker mounting hole from a front surface side of a mounting plate to be fixed, and a bottom surface, a body portion, and an opening periphery are larger than the holes. A flange portion having a diameter that contacts the mounting plate is integrally formed with a brim portion subjected to friction resistance expansion processing, and a speaker back pressure relief slit is provided on at least one of a bottom surface and a body portion, and A spacer is formed so that the distance between the bottom surface and the opening is at least longer than the back surface of the speaker, and the flange portion of the spacer is provided from the back side of the mounting plate to the periphery of the hole and with the flange of the speaker. The present invention is characterized in that a single screw inserted into a small hole at the center of the bottom surface of the spacer is brought into contact with the facing portion and screwed into the center of the rear surface of the speaker to be fastened.

[Action]

Since the spacer has a cylindrical shape with a bottom, when the speaker rear part is housed inside, the spacer bottom and speaker rear part are
The speaker can be fixed simply by fastening it with a screw. Therefore, the problems (1) and (2) are solved.

Further, since the speaker has a brim portion in a portion that comes into contact with the mounting plate, it is possible to reinforce the periphery of the hole of the mounting plate and solve the problem (3).

In addition, since the spacer has slits, the space behind the mounting plate (trunk room, etc.) for back pressure of the speaker.
It does not cause any acoustic problems.

〔Example〕

1 is a perspective view of the spacer of the present invention, (a) is a perspective view, (b) is a sectional view taken along line AA, and (c) is a bottom view.

The spacer 60 of the present invention is made of resin, for example, and has a cylindrical body 6
1, a bottom surface 62 thereof, and a flange portion 63 at the opening end are integrally formed. Small holes 64 for screw penetration are formed in the center of the bottom surface 62, and slits 65 for removing speaker back pressure are formed in a plurality of positions on the bottom surface 62 and the body portion 61. The surface 63A of the brim portion 63 serves as a contact portion with a mounting plate, which will be described later, and is therefore subjected to friction resistance enlargement processing (for example, satin finish) to prevent rotation.

FIG. 2 is a configuration diagram of a second embodiment of the present invention, (a) is an assembled perspective view at the time of mounting, and (b) is a side sectional view after the mounting.

The mounting plate 20 of this example is a horizontal rear tray at the rear of the passenger compartment, the front surface of which faces the passenger compartment and the rear surface of which faces the trunk. The speaker 10 is mounted by inserting the rear surface portion 13 into the hole 21 of the rear tray 20 from above the mounting plate 20. However, the speaker
The flange 12 of 10 is not screwed to the rear tray 20. Instead, the spacer 60 shown in FIG. 1 is applied to the back of the rear tray 20 with the flange 63 facing up, and then the screw 30 is inserted into the small hole 64 of the bottom surface 62 in the screw hole at the center of the speaker rear portion 13. Tighten by screwing. At this time, if a gap a is provided in advance between the speaker back surface portion 13 and the spacer bottom surface 62, tension is applied between the speaker back portion 13 and the spacer bottom surface 62 by the fastening of the screw 30, and the spacer 60 is brought into close contact with the back surface of the rear tray 20. At the same time, it is pulled by the spacer 60 and the speaker 10 also comes into close contact with the surface of the rear tray 20.

When the speaker 10 is inserted into the hole 21 of the rear tray 20 by its own weight, the attachment by the spacer 60 described above can be screwed by one person from the trunk room side. Moreover, the work is easy because the screwing is only required in one place. Further, there is an advantage that the periphery of the hole 21 is reinforced by the brim portion 63.

Further, since the surface 63a of the brim portion 63 is subjected to the expansion process of the frictional resistance, it is possible to prevent the spacer 60 from rotating and loosening the screw after the mounting.

FIG. 3 is a configuration diagram of a second embodiment of the present invention, (a) is an assembled perspective view, (b) is a bottom view of the spacer, and (c) is a side view of the spacer. The mounting plate 20 of this example is a vertical door trim that constitutes a door, the front surface of which faces the passenger compartment and the back surface of which faces the space inside the door. Also in this example, the speaker 10 is the door trim 20.
It is mounted from the front surface side (vehicle side), and its rear surface portion 13 is inserted into the hole 21. The usage of the spacer 60 is the same as in FIG.
Since the door trim 20 is removed and screwed, the screwing work is easy (one person can do it). In the space inside the door in which the spacer 60 is housed, water droplets easily enter through the space for raising and lowering the window glass. These water drops are on the back of the speaker 13
In order to prevent this from hitting, the formation position of the slit 65 in the spacer 60 is limited to the lower half of both the body portion 61 and the bottom portion 62, and the upper half is provided with a rain guard function.

Note that, in any of the examples, the slit 65 is for releasing the back pressure of the speaker, so that even if the spacer 60 having a bottomed cylindrical shape is used, the occurrence of muffled sound or the like is prevented.

[Effect of device]

As described above, according to the present invention, the embedded vehicle-mounted speaker can be easily attached with one screw. Moreover, since the periphery of the hole of the mounting plate is reinforced by the spacer, there is an advantage that the strength is not insufficient even if the speaker embedding hole is formed in the rear tray or the like.

Further, since the surface of the brim portion that comes into contact with the mounting plate is subjected to friction resistance enlargement processing, there is an advantage that loosening of the screws due to rotation of the spacer after mounting the speaker can be prevented.

Furthermore, since a gap is provided in advance between the bottom surface of the spacer and the back surface of the speaker, tension is applied between the two by fastening the screws, and the back surface of the spacer and the mounting plate and the surface of the speaker and the mounting plate are securely secured. There is an advantage that they can be closely attached.

[Brief description of drawings]

FIG. 1 is a block diagram of a spacer of the present invention, FIG. 2 is a block diagram of a first embodiment of the present invention, FIG. 3 is a configuration of a second embodiment of the present invention, and FIG. 4 is a conventional vehicle-mounted speaker. FIG. In the figure, 10 is a speaker, 12 is a flange, 13 is a rear part, 20 is a mounting plate, 21 is a hole, 30 is a screw, 60 is a spacer, 61 is a body,
62 is a bottom surface, 63 is a brim portion, 64 is a small hole, and 65 is a slit.

Claims (1)

[Scope of utility model registration request] 1. A mounting device for an on-vehicle speaker, wherein a rear part of an on-vehicle speaker is inserted into a hole for mounting a speaker from a front surface side of a mounting plate to be fixed, wherein a bottom surface, a body portion, and an opening peripheral edge are provided with the holes. A large-diameter part that is in contact with the mounting plate is integrally formed with a brim part that has been subjected to friction resistance expansion processing, and at least one of the bottom surface or the body part has a slit for releasing the back pressure of the speaker, and A spacer is formed so that the distance between the bottom surface and the opening is at least longer than the back surface of the speaker, and the flange portion of the spacer is provided from the back side of the mounting plate to the periphery of the hole and with the flange of the speaker. A vehicle-mounted speaker characterized by having a structure in which a single screw abutting on a portion facing each other and inserted through a small hole at the center of the bottom surface of the spacer is screwed and fastened to the center of the speaker back portion. Mounting device.