JPS5844706Y2 - Mounting spacer for embedded speaker - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a spacer for mounting a speaker for a car stereo, which is used by being embedded in the rear storage stand, door, etc. of an automobile.

Conventional car stereo speakers include stationary speakers in which the speakers are housed in a box in advance and the box is fixed to the rear storage area, or holes are drilled in the rear storage area, door lining, etc., and the speaker unit is embedded in this hole. Embedded speakers and the like are known.

However, the former is superior in that the speaker mounting surface of the box is tilted to direct the sound emitting surface toward the front of the vehicle interior, increasing the directivity of high-frequency sound, but the internal volume of the box is small. However, since the diameter of the speaker unit cannot be made large, there is a drawback that it is not possible to obtain sufficient low-frequency sound.

In the latter case, the large space behind the rear storage area, door lining, etc. can be used for the box, so it is possible to obtain sufficient low-frequency sound. There is a structure such as a steel plate that is part of the door, and the back side of the door lining cannot be very deep, which creates an obstacle to the magnetic circuit at the rear of the speaker unit.

The present invention was developed in view of the above points, and it substantially increases the internal volume of the speaker box to sufficiently reproduce low-frequency sounds. To provide a spacer for installing a speaker, which can be easily installed on a car, door, etc., and can provide a speaker system for a car stereo with excellent directivity.

An embodiment of the present invention will be described below based on the drawings.

Reference numeral 1 denotes a rear storage stand formed on the back of the rear seat of the vehicle, and a hole formed horizontally and at the side end of which a part of the magnetic circuit 21a of the speaker unit 21, which will be described later, faces.]
1 is bored, and a screw insertion hole 12 is made around the hole 11.

Reference numeral 2 denotes a speaker system, which is composed of a speaker unit 21, a cover 22 that covers the sound emitting surface of the speaker unit 21, and a frame-shaped spacer 23 interposed between the rear storage stand 1 and the speaker unit 21. The spacer 23 has its lower surface fixed to the rear storage stand 1 by screws 3 inserted through the screw insertion holes 12, and its upper surface fixed to the outer periphery of the frame 21b of the speaker unit 21 and the cover 22 placed on the outer periphery of the frame. It is fixed by 4.

The spacer 23 has a substantially cylindrical outer peripheral wall, a horizontal lower surface, an upper surface inclined with respect to the lower surface, and a thickness smaller than that of the speaker unit 21 as a whole. is an inwardly extending flange 2
3d, and from this flange 23d a spacer 23
A large number of reinforcing ribs 23 a extend inside toward the lower surface.
It is equipped with

Holes 23C are provided at four locations in the circumferential direction of the reinforcing ribs 23H, and each hole 23C penetrates substantially perpendicularly from the lower surface. A cylindrical oak (23b) is embedded by a mold.

Therefore, the spacer 23 is used to connect the speaker unit 2.
1 to the rear storage stand 1. First, align the spacer 23 with the opening hole 11 of the rear storage stand 1 so that the top opening is inclined toward the front, and then insert the spacer 23 into the hole 23C.
The spacer 23 is fixed to the rear storage table 1 by aligning the spacer 23 with the screw insertion hole 12, inserting the screw 3 from the underside of the rear storage table 1, and screwing it into the cylindrical neck l-23b.

Next, place the outer periphery of the frame 21b of the speaker unit 21 on the top surface of the spacer 23, place the cover 22 on top of it, insert the screw 4 into the hole 23C, and screw it onto the top of the cylindrical neck l-23b. , spacer 2 at the same time
Fixed at 3.

At this time, a part of the magnetic circuit 21a of the speaker unit 21 faces diagonally into the trunk on the back side of the rear storage stand 1.

Furthermore, since the spacer 23 and the trunk are communicated through the hole 11, the substantial area of the box becomes the trunk and becomes large.

The present invention is as described above, and if the spacer of the present invention is used, the speaker unit can be installed in a state that is slightly lifted from the hole drilled in the rear storage room, door, etc.
Even if other structures in the car are behind the mounting surface, a speaker that uses a relatively large magnetic circuit can be mounted without any problem, and since the top and bottom surfaces of the spacer are slanted toward each other, the front of the speaker unit can be mounted easily. It is installed toward the inside of the car, and can provide good directivity, especially in high-temperature ranges.

Furthermore, the spacer has a hole for screw insertion in the reinforcing rib extending from the flange, and the direction of the hole is approximately perpendicular to one mounting surface, which is the opening without a flange. Even if the screws are inserted and tightened from the mounting surface side of the opening, the screws can be fastened sufficiently firmly without applying any lateral force to the holes and ribs.

Furthermore, when molding the spacer from synthetic resin, the reinforcing ribs are extended from the flange as described above, and the holes are bored perpendicular to the opening surface without flanges, so the mold is placed on the side of the opening surface. The mold can be easily designed and manufactured at low cost.

[Brief explanation of drawings]

The figures show an embodiment of the speaker system according to the invention, with FIG. 1 being a perspective view of the speaker system installed in the rear storage stand of an automobile, and FIG. 2 being a partially cutaway sectional view of the main parts. 1...Mounting plate, 21...Speaker unit, 23...Spacer, 23a...
Reinforcing rib, 23C...hole, 23d...
...Flange.

Claims (1)

[Scope of utility model registration request] A frame-shaped spacer of a size that surrounds a hole formed in a mounting plate of a rear storage stand of an automobile, etc., which has a thickness substantially smaller than that of a speaker unit to be attached, and whose upper surface covers the frame of the speaker unit. The mounting surface of the spacer is the mounting surface on which the spacer is placed, and the bottom surface is the mounting surface of the spacer that is placed on the mounting plate.
The two mounting surfaces are inclined to each other, and one mounting surface is formed with a flange extending inwardly, and this flange is formed with a reinforcing rib extending toward the other mounting surface, and this reinforcing rib is provided with the above-mentioned reinforcing rib. A spacer for mounting an embedded speaker, which has a hole for screwing in a direction substantially perpendicular to the other mounting surface.