JPH0483499A - Speaker device - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to the structure of a speaker device mainly for reproducing low frequency range output.

[Prior Art] FIGS. 2 and 3 are a front view and a cross-sectional view taken along the line A-A of the conventional speaker device disclosed in, for example, Japanese Patent Publication No. 58-48120.

In Figures 2 and 3, (1) is the speaker device (1), (2) is the baffle plate to which the i speaker device (1) is attached, and (3) is the speaker that houses the speaker unit (1). Cabinet 1. (4) is a bass reflex duct provided at the upper end or lower end, or both, of the speaker unit (1) mounting surface of the baffle plate (2);
5) is a protruding plate attached to the front of the baffle plate (2) with a certain interval between the baffle plate (2) and the speaker unit (5) from above and below the speaker cabinet (3).
1), and its end face is formed into an exponential curve.

In the speaker device configured as described above, there is a certain gap between the protruding plate (5) provided on the front surface of the speaker cabinet (3) and the baffle plate (2), so that radiation from the rear surface of the speaker unit (1) is A bass reflex duct (4) is formed to extract the generated sound waves as resonance sounds. Since the end face of the protruding plate (5) of this bass reflex duct (4) is formed into an exponential curve, the length becomes shorter as it moves away from the center of the speaker unit (1), so the resonance determined by the length of the duct The frequencies are distributed, the characteristics of the bass range are wide and gentle, and the bass reproduction band is widened.

On the other hand, in the high frequency range, the protruding plate (5) provided on the front of the speaker cabinet (3) is formed to cover the subicare unit (1), so it resonates at a specific frequency, but this resonant frequency At higher frequencies,
Radiation from the aperture is cut to reduce noise components.

[Problems to be Solved by the Invention] However, in the conventional speaker device as described above, the mounting structure of the protruding plate (5) is complicated, and the speaker unit (1) is mounted from the rear, so the speaker cabinet ( The back plate (3) must be constructed so that it can be freely removed, and the protruding plate (5) also serves as the front plate of the speaker cabinet (3), so it must be formed by processing a strong material, and the parts and the assembly cost becomes high. Furthermore, from a design point of view, there is a problem in that the number of parts must be increased because the decorative net grill must be provided on the protruding plate.

This invention was made in order to solve the above-mentioned problems, and provides a subicar device that can simplify the protruding plate, reduce the cost of the speaker cabinet including the protruding plate, and shorten the assembly time. The purpose is to obtain.

[Means for Solving the Problems] A speaker device according to the present invention has a speaker cabinet separated into a cabinet body and a grille formed to cover the front surface of the cabinet body, and the grille is arranged opposite to the front surface of the speaker unit. A protruding plate whose end face has a shape such as a quadratic curve and a plurality of protrusions for fixing are integrally molded on the cabinet body, and the baffle plate of the cabinet body is provided with holes into which the above protrusions fit. It is.

[Function] In the present invention, in order to fix the speaker unit to the cabinet body, first, the grille is fastened to the baffle plate of the separated cabinet body with screws or the like. Next, after this tightening, the protrusion provided on the separated grille is fitted into the hole on the cabinet side, and the protruding plate is placed opposite the predetermined position on the front of the speaker unit, and the grille is fixed to the cabinet body. This is how it was done.

[Example] Hereinafter, one embodiment of the present invention will be described based on the drawings.

FIG. 1 is an exploded perspective view showing the structure of each speaker device according to an embodiment of the present invention.

In Fig. 1, (1) to (5) are the third
Since these parts are the same as or equivalent to the parts with the same reference numerals in FIG. 4 and FIG.

(6) is a plastink-molded plastic screw integrally formed with a protruding plate (5) whose end face is shaped like a quadratic curve, and is designed to cover the baffle plate (2) of the speaker cabinet (3). There is. (7) is a projection integrally molded on the grille (6), and a baffle plate (2) provided at a corresponding position.
) into the hole (8). (9) is a decorative net cloth attached to the front of the grill (6).

In the speaker device configured as described above, the speaker unit (1) does not need to be installed from the rear of the speaker cabinet (3) as in the conventional examples shown in Figs. 3 and 4, but from the front. The baffle plate (2) can be fixed to the speaker cabinet (3) by tightening the screws (]a).
) does not have to have a removable structure.

In addition, the protruding plate (5) is integrally molded with the grill (6) from plastic, and the protrusions (
7) is fitted into the hole (8) of the baffle plate (2) to be fixed to the speaker cabinet (3).

In the above embodiment, the end surfaces of the protruding plates (5) provided at the upper and lower portions are formed in quadratic curves, or the end surfaces may be formed into hyperbolic shapes.
) may be arranged symmetrically.

Further, although the grille (6) and the protruding plate (5) are integrally molded from plastic, a wooden member may also be used.

[Effects of the Invention] As described above, according to the present invention, the protruding plate is integrally molded on the grille and is fixed by fitting the protrusion into the hole on the speaker cabinet body side. It is no longer necessary to make the back panel of the cabinet removable for installation, and there is an effect that it is possible to reduce parts and assembly costs, and to obtain a speaker device with enhanced design effect.

[Brief explanation of the drawing]

FIG. 1 is an exploded perspective view showing the structure of a speaker device according to an embodiment of the present invention, and FIGS. 2 and 3 are front views showing the structure of a conventional speaker device, and A-A thereof.
FIG. In the figure, (1) is the speaker unit, (1a) is the screw, (2)
is a baffle plate, (3) is a speaker cabinet, (4
) is the bass reflex duct, (5) is the protruding plate, (6) is the grill, (7) is the protrusion, (8) is the hole, and (9) is the net cloth. In addition, in the figures, the same reference numerals indicate the same or equivalent parts.

Claims (1)

[Claims] A bass reflex type speaker cabinet in which a protruding plate whose end face shape is a quadratic curve or the like is disposed opposite to the front surface of a speaker unit, wherein the protruding plate is integrally molded so as to cover the main body of the speaker unit. What is claimed is: 1. A speaker device comprising: a grill having a separate structure; and holes provided in a baffle plate of the speaker cabinet into which projections provided at a plurality of locations at an end of the grill fit.