JPS63287198A - Manufacture of speaker - Google Patents

Abstract

PURPOSE:To reduce the number of parts and decrease the adhesion work of a gasket by forming the gasket integrally with a diaphragm. CONSTITUTION:The diaphragm 4 is turned upside down, and a highly viscosity adhesive 6 is packed in the adhesive packing part 4b along the peripheral part 4a. Next, a flexible substance 2 is adhered and fixed in the center bottom part 1b of a frame 1, and further, a highly viscosity adhesive 6 is coated on the top surface of a piezoelectric element 3. Then the frame 1 is turned upside down, and is put on the diaphragm 4, then the adhesive 6 on the piezoelectric element 3 is adhered with the center part 4c of the diaphragm 4. In such a constitution, there is no need for providing the gasket separately, hence the number of parts can be reduced and the work of connecting the gasket can also be decreased.

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application The present invention relates to a method of integrally forming a gas cap and a cap on a diaphragm of a speaker.

(B) Conventional technology Conventionally, in a piezoelectric speaker, as shown in Fig. 3, a flexible material (2i) such as foamed urethane resin is fixed to the center bottom of the frame, and a piezoelectric element +3+i is fixed to the top of this by bonding. Furthermore, it is known that a piezoelectric element (it) is attached to the center of the diaphragm 147 near the center of the upper surface of the piezoelectric element (it). After gluing to the peripheral part (1a) in the frame, a ring-shaped gasket (51) is adhesively fixed to the peripheral part (4a) of the diaphragm (41), and the gasket +53 is attached to the speaker +l (j and this speaker ttti). Problem to be solved by the 0G-1 invention, which is used for the purpose of filling a gap between a pub full plate (not shown) 1 However, in the above-mentioned conventional technology, a gasket is required as a separate component. Therefore, there are problems in terms of the number of parts and bonding work.The present invention provides a complete method for manufacturing a speaker that solves the above problems. Seven adhesive filling areas are provided around the entire periphery of the plate, and after filling the adhesive filling areas with high viscosity adhesive, the high viscosity adhesive is solidified to form a substantial gasket metal. The 0 (e) action is formed integrally on the diaphragm, and the cross-glue filling section is filled with high viscosity adhesive and this is solidified.
A qualitative gasket is formed.

(f) Example The present invention will be explained below with reference to FIGS. 1 and 2.

FIG. 1 is a sectional view of one embodiment of the present invention. (1"μ frame, a flexible material 1'4+ such as foamed urethane resin is adhesively fixed to the center bottom part (1b). Adhesive is spread on both sides of the flexible material; 21, The flexible material 12+ is adhered to the center bottom (lj) of the frame ll+ with this adhesive, and the piezoelectric element 13+ is further attached to the top surface.
is glued.

+41 fl paper (diaphragm), the peripheral part (4a) is U-shaped all around, and the adhesive filling part (4t)
) i- The forming n adhesive filling part (4b) is filled with a high viscosity adhesive (61 (e.g. chloroprene rubber thread adhesive, Diabontom 1661 manufactured by Nogawa Chemica/I/Co., Ltd.), and after filling, the adhesive is By assimilating the diaphragm 1
A substantial gasket is integrally formed at the peripheral portion (4a) of 4;

Next, each process of an embodiment of the present invention will be explained with reference to FIG. First, as shown in Figure 2 A), use a cone paper (diaphragm) (
Turn 4I upside down and insert the adhesive filling part (4a) at the periphery (4a).
4b) with the high-viscosity adhesive (6'') □ Next, as shown in Figure 2 (b), fill the center bottom part of the frame 11'' (
1b), a flexible material 121t- is fixed with adhesive, a piezoelectric element G (It- is fixed with adhesive) on the upper surface of the flexible material +21, and the above-mentioned high viscosity adhesive 16+y is applied on the upper surface of the piezoelectric element 13-.
Apply.

After wrapping, as shown in Figure 2 e1, this frame +11
Turn the upper and lower plates upside down and cover the diaphragm (4) with the adhesive on the piezoelectric element 131 +61! : m center part (4C)'Ii of the diaphragm 141 - glued and allowed to air dry in this state for 24 hours Since the h2 is formed, there is no need to install a separate gasket (t), and there is no need to attach the gasket in addition to the number of parts. can be reduced, and the total cost can be reduced□

[Brief explanation of drawings]

Figure 1 is a sectional view of one embodiment of the present invention, and Figure 2 is a sectional view showing the same manufacturing process. Process, el indicates the process of covering the diaphragm with frame gold, @3
The figure shows a cross-sectional view of the prior art.

Claims (1)

[Claims] (1) After filling the adhesive filling part of the diaphragm which integrally has an adhesive filling part over the entire circumference of the periphery with a high viscosity adhesive,
A method of manufacturing a speaker, characterized in that the high viscosity adhesive is solidified to form a substantial gasket.