JPS6318237Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a drone cone speaker that has a simple configuration, is easy to assemble, and is inexpensive.

Figure 1 shows the conventional drone cone speaker.
It was constructed as shown in Figure 2.

That is, it has an opening 1 on the bottom surface and a window hole 2 on the peripheral surface.
The edge 4' of the diaphragm 4 is attached to the peripheral edge of the frame 3 provided with a The bobbin 5 was held at the center of a damper 6 fixed to the frame 3, and a cap-shaped weight ring 7 was fixed to the upper end of the bobbin 5.

In this configuration, the diaphragm 4 and the bobbin 5
Adhesion of bobbin 5 and damper 6, bobbin 5
This requires adhesion between the weight ring 7 and the weight ring 7, which requires a large number of components, and requires time and effort to assemble, which is disadvantageous in terms of productivity and cost.

The present invention eliminates the above-mentioned drawbacks of the prior art.

Embodiments of the present invention will be described below with reference to FIGS. 3 to 9.

First, in FIG. 3, reference numeral 8 denotes a frame having an opening 9 on the bottom surface and a window hole 10 formed on the peripheral surface.
The cylindrical part 13 at the center of the diaphragm 11 is fitted into the bottomed recess 15 at the center of the damper 14 whose peripheral edge is attached to the frame 8, and the weight ring is assembled into the bottomed recess 15. 16 and are bonded together by an adhesive 17.

FIG. 4 is a sectional view of the damper 14 used in this drone cone speaker, FIG. 5 is a half sectional view showing how the diaphragm 11 and damper 14 are assembled, and FIG. 6 is a section showing the combination of the diaphragm 11 and damper 14. FIG. 3 is a half-sectional view of a state in which a weight ring 16 is assembled into the body.

Further, in the damper 14 shown in FIG. 7 to FIG.
3 is fitted, a weight ring 16 is assembled on the upper surface of the protrusion 18, and the three parts are simultaneously bonded using an adhesive 17.

Since the drone cone speaker of the present invention is constructed as described above, there is no need for a conventional bobbin, and the diaphragm, damper, and weight ring can be connected in one go, making assembly extremely simple. , and can significantly improve productivity.
This also results in a significant reduction in cost, which is of great practical value.

[Brief explanation of drawings]

Figure 1 is a half-sectional front view showing a conventional drone cone speaker, Figure 2 is an enlarged sectional view of the same main part, and Figure 3 is a front view of a conventional drone cone speaker.
The figure is a half-sectional front view showing an embodiment of the drone cone speaker of the present invention, FIG. 4 is a cross-sectional view of a damper used in the drone cone speaker, and FIG. 5 is a half-sectional view showing the assembly of the damper and diaphragm. , Fig. 6 is a half-sectional view showing the assembly of the same damper, diaphragm, and weight ring, Fig. 7 is a sectional view of a damper of another embodiment, and Fig. 8 is a half-sectional view showing the assembly of the same damper and diaphragm. 9 are half-sectional views showing the assembly of the damper, diaphragm, and weight ring. 8...frame, 9...opening, 10...window hole,
11... Vibration plate, 12... Edge, 13... Cylindrical part, 14... Damper, 15... Bottomed recess, 16
...Weight ring, 17...Adhesive, 18...
Protrusion.

Claims (1)

[Scope of utility model registration request] The central cylindrical part of the diaphragm whose peripheral edge is joined to the peripheral edge of the frame is fitted into the central bottomed recess or bottomed protrusion of the damper whose peripheral edge is fixed to the frame, and this bottomed recess or bottomed protrusion A drone cone speaker with a weight ring placed on top and a damper, diaphragm and weight ring bonded together using adhesive.