JPH02253795A - Speaker equipment - Google Patents

Abstract

PURPOSE:To reduce the influence of a inherent tone in an inner frame by an outer frame provided in front of the inner frame by supporting the outer frame, which covers the front surface of the inner frame to support a diaphragm and a magnetic circuit for drive, in a floating state to a cabinet. CONSTITUTION:For the support of an outer frame 6 to cover a whole inner frame 1A, screw frame 1A, screws or the like are not used but respective supporting legs 6a of the outer frame 6 is inserted to an elastic body 7 which is embedded on the front surface of a cabinet 5 in advance. Thus, the inherent tone of the inner frame or of fitting screws is not directly radiated by the existence of the outer frame 6 and floating support operation. Then, the resonance of the outer frame itself is eliminated.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a speaker device using a dual structure of an inner frame and an outer frame.

[Prior Art] Fig. 3 is a sectional view of the main parts of a conventional general dome-shaped speaker device. In Fig. 1, (1) is a frame, and (2)
is the diaphragm exposed on the front side, (3) is the magnetic circuit for driving this diaphragm, (4) is the mounting screw for the frame (1), and (5) is the frame (1) attached to the front side. It is a cabinet. Moreover, FIG. 4 is a sectional view showing another conventional example in which a decorative plate (8) is attached to the front of the speaker unit with mounting screws (4). That is, in the example of FIG. 3, the frame (1) on which the diaphragm (2) and its driving magnetic circuit (3) are attached is screwed to the front of the cabinet (5), and in the example of FIG. Then frame (
A decorative board (8) is screwed to the front of 1).

[Problem to be solved by the invention] The conventional speaker device is configured as described above.
In the example shown in Figure 3, the diaphragm and magnetic circuit are attached directly to the frame exposed on the cabinet surface.
The entire frame was vibrated, and its unique sound had a negative effect on the sound reproduced by the speaker device. In addition, in the example shown in Figure 4, the decorative board (8) is further tightened to the cabinet by mounting screws, so the decorative board is likely to warp, resulting in abnormal noises from the decorative board itself and the failure of its mounting screws. There were problems such as the production of unique sounds.

This invention was made to solve the above-mentioned problems, and aims to reduce the influence of the inherent sound of the inner frame that supports the diaphragm and its driving magnetic circuit by using an outer frame provided in front of the inner frame. purpose.

[Means for Solving the Problems] In the speaker device according to the present invention, an outer frame that covers the front of an inner frame (1) that supports a diaphragm and a magnetic circuit for driving the diaphragm is supported in a floating state with respect to a cabinet. ing.

[Function] In the case of the present invention, the existence of the outer frame and its floating support function prevents the unique sound generated from the inner frame and its mounting screws from being mixed with the reproduced sound.

[Example] An example of the present invention will be described below. In other words, the same parts in FIGS. 1 and 2 as those in FIG.
In the figure, (IA) is an inner frame that supports the diaphragm (2) and its driving magnetic circuit (3), and (6) is an annular shape that covers the front of the inner frame (IA) except for the diaphragm (2). The outer frame has a plurality of supports j#1 (6a) protruding from the back surface thereof in a ring shape.

Each of these supporting legs (6a) is in front of the cabinet (5),
The outer frame (6) is supported in a floating state with respect to the cabinet (5) by being inserted into a plurality of elastic bodies (7) buried in advance so as to surround the inner frame (1). This is a feature of the present invention.

That is, in this invention, the inner frame (IA
), each supporting leg (6a) of the outer frame (6) is attached to an elastic body (7) buried in advance in the front of the cabinet (5) without using screws. ) is done by inserting. .

As described above, due to the existence of the outer frame (6) and its floating support function, the inherent sound of the inner frame and its mounting screws is not directly radiated, and the resonance of the outer frame itself is also eliminated.

In addition, in the above embodiment, the elastic body (7) and the supporting legs (6a) inserted into the elastic body (7) are used to support the outer frame (6) in a floating state, but the use thereof is not necessarily specific. . Other inner frames (
A sound absorbing material may be inserted between the IA) and the outer frame (6).

[Effects of the Invention] Since the speaker device of the present invention is configured as described above, it is not only possible to prevent the direct radiation of the inherent sound of the inner frame and its mounting screws, but also there is no resonance of the outer frame, and therefore the sound quality performance is improved. This has the effect of providing an excellent speaker device.

[Brief explanation of drawings]

FIG. 1 is a sectional view of essential parts showing an embodiment of a speaker device of the present invention, and FIG. 2 is an exploded perspective view thereof. FIGS. 3 and 4 are sectional views of essential parts of a conventional speaker device. In the figure, (IA) is an inner frame, (2) is a diaphragm, (3) is a magnetic circuit, (5) is a cabinet, and (6) is an outer frame. In other figures, the same reference numerals indicate the same parts.

Claims (1)

[Claims] An inner frame supporting a diaphragm and a magnetic circuit for driving the diaphragm is superposed and fixed to the front of the cabinet, and the front of the inner frame excluding the diaphragm is supported by an outer frame in a floating state on the cabinet. A speaker device characterized in that it is covered.