JPH05344572A - Speaker - Google Patents

Abstract

PURPOSE:To obtain a speaker advantageous in cost and having excellent waterproof performance and mounting workability especially in a speaker to be mounted on a vehicle among speakers to be used for various acoustic apparatuses. CONSTITUTION:The seam 19 of a rod-like no-loss type waterproof urethan cushion 18 provided with a small hole 17 for temporarily holding a speaker mounting screw 16 on its one side is stuck to the back surface peripheral part 15 of a resin-made waterproof cover 14 to be combined with a frame 12 by adhesion is crossed so as to be overlapped with the other side. Consequently assembling workability can be improved.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a speaker used in various audio equipments, and more particularly to a speaker effective as a vehicle-mounted speaker.

[0002]

2. Description of the Related Art A conventional waterproof type speaker uses a waterproof urethane cushion, and the shape of this waterproof urethane cushion is a figure-less or rod-shaped no-loss type. Its function is to prevent water leakage from the mounting surface. It was to prevent it.

A conventional speaker with a waterproof urethane cushion will be described below with reference to the drawings. As shown in FIG. 2, the waterproof urethane cushion 3 is attached to the outer peripheral surface 2a of the back surface of the waterproof cover 2 which is bonded to the frame 1a of the speaker body 1 by adhesion.

In the structure shown in FIG. 3, a rod-shaped no-loss type waterproof urethane cushion 4 is attached to the outer peripheral surface 2a of the back surface of the waterproof cover 2, and the seam 4a is formed so as to overlap at the upper part.

[0005]

As described above, in the waterproof urethane cushion 3 without a figure, the material yield is very poor and the cost is high.

Further, the rod-shaped no-loss type waterproof urethane cushion 4 has a high material yield and a low cost, but the screws cannot be temporarily held during the speaker mounting work, and there is a problem in the waterproof performance at the joint 4a. there were.

The present invention solves the above-mentioned conventional problems, and provides a speaker which is advantageous in terms of cost, has a function of temporarily holding a mounting screw, and has improved waterproof performance at a joint. The purpose is to do.

[0008]

In order to solve the above-mentioned problems, the speaker of the present invention is a rod-shaped no-loss type waterproof in which a small hole for temporarily holding a screw is provided at one location on one side on the outer periphery of the back surface of the waterproof cover. A urethane cushion is affixed, and the seams of the waterproof urethane cushion are crossed so that they overlap.

[0009]

With the above construction, the material yield is good and the cost is advantageous, and since the screws can be temporarily held in the small holes, the mounting workability of the speaker can be improved.

Further, the waterproof performance can be improved by crossing the seams and attaching the overlaps.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the speaker of the present invention will be described below with reference to the accompanying drawings. FIG. 1 is an exploded perspective view showing an embodiment of the present invention.

In FIG. 1, the magnetic circuit 11 has a frame 1
2 is connected to the frame 12 of the speaker body 13 which is formed by incorporating a vibration system, a voice coil, a damper, and other vibration system parts in the frame 12, and the rear surface of the speaker body 13 made of resin is bonded by adhesive bonding. Waterproof cover 14
A rod-shaped no-loss type waterproof urethane cushion 18 provided with a small hole 17 for temporarily holding the speaker mounting screw 16 at one place on one side is attached to the rear surface outer peripheral portion 15.

Further, the seam 19 of the waterproof urethane cushion 18 is attached by crossing and overlapping.

With such a construction, the assembly is performed by inserting the mounting screw 16 into the small hole 17 of the waterproof urethane cushion 18 attached to the waterproof cover 14 before setting it on the mounting portion inside the door of the automobile or the like. By temporarily holding the speaker, aligning the speaker with the mounting portion, and assembling the speaker, and then tightening the mounting screw 16, the speaker can be mounted on the door of the automobile.

Therefore, the work can be performed extremely efficiently, which is excellent in practicality.

Further, even if raindrops or the like enter, since the seam 19 of the waterproof urethane cushion 18 is crossed and overlapped, it is much more waterproof than the conventional mere overlap. In addition, the waterproof cover 14 does not flow into the speaker main body 13 and does not flow into the outer peripheral portion of the waterproof cover 14.

[0017]

As described above, in the speaker of the present invention, the shape of the waterproof urethane cushion is not a cut-out shape, but a rod-shaped no-loss type, so that the material yield is very good and it is advantageous in terms of cost.

Further, since there is a waterproof cushion provided with a small hole for temporarily holding the mounting screw in correspondence with one of the mounting holes of the waterproof cover during the work for mounting the speaker, the mounting screw should first be inserted into the mounting hole. By holding it, it is not necessary to hold the speaker with one hand and to carry the mounting screw with the other hand, and it can be easily mounted by a driver or the like, and workability can be improved.

Further, since the seams of the waterproof urethane cushion are crossed and overlapped and attached, the contact area of the waterproof cushion with the mating mounting surface becomes large, and the waterproof performance at the seams can be improved.

[Brief description of drawings]

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

FIG. 2 is an exploded perspective view showing an example of attaching a waterproof cushion without a figure in a conventional speaker.

FIG. 3 is an exploded perspective view showing an example of sticking a rod-shaped no-loss type waterproof cushion on a conventional speaker.

[Explanation of symbols]

 11 magnetic circuit 12 frame 13 speaker body 14 waterproof cover 15 outer peripheral part of the back surface of the waterproof cover 16 mounting screw 17 small hole for temporary holding 18 rod-shaped no-loss type waterproof urethane cushion 19 seam

Claims (1)

[Claims] 1. A waterproof urethane cushion of a rod-shaped no-loss type having a small hole for temporarily holding a mounting screw at one place on the outer periphery of the rear surface of a waterproof cover coupled to a frame of a speaker body, and the waterproof urethane cushion. A speaker that is attached so that the seams of are cross-overlapped.