JP3991896B2 - Speaker device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a speaker device used for various kinds of audio equipment.
[0002]
[Prior art]
The prior art will be described with reference to a half sectional view of the speaker device of FIG.
[0003]
According to the figure, reference numeral 1 denotes a field portion of the speaker, which is composed of an upper plate 1a, a magnet 1b, and a lower plate 1c having a center pole, and is formed in a gap between the center pole portions of the upper plate 1a and the lower plate 1c. A magnetic gap 9 is formed. 2 is a frame coupled to the upper plate 1a, 3 is a voice coil, 4 is a damper for supporting the voice coil 3, 5 is coupled to a voice coil 3 fitted into a magnetic gap on the inner periphery, and the outer periphery is connected to the frame 2. It is a combined diaphragm.
[0004]
Reference numeral 5 a denotes a body portion of the diaphragm 5, and 5 b denotes an edge coupled to the frame 2. A convex portion 5c formed integrally with the edge 5b is provided on the outer edge portion of the edge 5b.
[0005]
Reference numeral 8 denotes a dust cap coupled to the upper surface of the body portion 5 a of the diaphragm 5.
[0006]
Further, 11 is a mounting plate for mounting the above-mentioned speaker, 12 is a speaker grill that protects the front surface of the speaker, and 12a is a ring-like shape provided on the speaker grill 12 that is pressed against the convex portion 5c when the speaker grill 12 is mounted. Reference numeral 13 denotes a resin clip that joins the speaker grille 12 and the mounting plate 11 together.
[0007]
As described above, the speaker 12 is mounted by pressing the rib 12a of the rib speaker grill 12 on the convex portion 5c of the speaker to prevent rattling when the speaker grill 12 is mounted (for example, Patent Document 1). reference).
[0008]
[Patent Document 1]
Japanese Patent Laid-Open No. 11-155190
[Problems to be solved by the invention]
However, when the speaker grill 12 for protecting the front surface of the speaker is attached after the speaker is mounted on the mounting plate 11, the above-described speaker is provided with a ring-shaped rib 12a provided on the speaker grill 12 and a convex of the outer edge portion of the edge 5b. An abnormal sound due to vibration of the speaker grille 12 is suppressed by abutting the part 5c and using the elasticity of the material of the convex part 5c to suppress the abnormal sound due to the vibration of the speaker grill 12, but the edge 5b and the convex part 5c of the outer edge part are integrally formed Therefore, the hardness of the material is the same. Therefore, when the edge 5b is hardened for the purpose of changing the sound quality, the convex part 5c of the outer edge part is similarly hardened. As a result, there is a problem that the speaker grill 12 and the speaker cannot be reliably adhered.
[0010]
The present invention solves such a problem, and provides a speaker device that can freely select the hardness of the edge and can ensure the close contact between the speaker grille and the speaker while having the same configuration as the conventional one. is there.
[0011]
[Means for Solving the Problems]
In order to solve the above-described problems, the speaker device according to claim 1 of the present invention is provided with a conical sheet-like extending portion that extends to the edge portion and has an outer periphery that is outwardly free. The speaker grille is mounted by pressing a part of the speaker grille from above onto the extending part, and the thickness of the convex material provided with the speaker grille and the speaker body at the outer edge of the edge. Selection of edge stiffness (sound quality) without impairing the close contact between the speaker grille and the speaker body, as well as the elasticity of the direction, as well as the elastic force as the restoring force of the conical shape of the conical extension It is possible to provide a speaker device capable of expanding the degree of freedom of selection.
[0012]
The speaker according to a second aspect of the present invention is such that the angle of the extended portion of the edge according to the first aspect is 30 ° or more, and the speaker grill is mounted on the speaker main body. Can be easily secured.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of the speaker of the present invention will be described with reference to FIGS. In the description, the same parts as those in the prior art are denoted by the same reference numerals, and description thereof is omitted.
[0014]
(Embodiment 1)
FIG. 1 is a half sectional view of an embodiment of the speaker device of the present invention. FIG. 1 (a) shows a state before the speaker grill is mounted, and FIG. 1 (b) shows a state after the speaker grill is mounted.
[0015]
According to the figure, the difference from the prior art is that the edge 5b is extended integrally with the edge 5b to provide an elongated portion 5d having a sheet shape and a conical outer periphery having a free end . By bringing the side surface of the extended portion 5d into pressure contact with the ring-shaped rib 12a of the speaker grill 12 from above, the rib 12a and the edge that depend on the thickness of the convex portion 5c and the elastic force of the material as in the prior art. The elastic (restoring) force resisting the side surface pressing by the rib 12a of the extending portion 5d formed in a conical shape is also used.
[0016]
With the above-described configuration, not only the elasticity of the material of the extending portion 5d of the edge 5b but also the elasticity based on the shape formed in a conical shape is used to enable close contact, so that the degree of freedom in selecting the edge material in sound quality design It is possible to provide a speaker with sound quality that can meet the user's request.
[0017]
In addition, when attaching the speaker grille 12 to the speaker mounting plate 11 by setting the opening angle A opened in the conical shape of the extending portion 5d to 30 ° or more, the extending portion 5d is prevented from entering the inside of the rib 12a. The workability at the time of mounting can be improved.
[0018]
Further, in the present invention, by adopting the above-described configuration, it is sufficient that the stretched portion 5d has a shape that can obtain elasticity even if it is not thick as the conventional convex portion 5c, and is the same as the edge 5b? Alternatively, it may be set substantially the same or thinner.
[0019]
【The invention's effect】
As described above, the present invention increases the degree of freedom of edge selection while maintaining close contact between the speaker grille and the speaker, and makes it possible to provide a speaker device that supports diversification of sound quality.
[Brief description of the drawings]
1A is a half sectional view of a speaker device according to an embodiment of the present invention before mounting the speaker grill; FIG. 1B is a half sectional view of the speaker device after mounting the speaker grill; FIG. [Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Field part 2 Frame 3 Voice coil 5 Diaphragm 5a Body part 5b Edge 5c Convex part 9 Magnetic gap 11 Speaker mounting plate 12 Speaker grill 12a Rib

Claims (3)

A field part having a magnetic gap, a frame coupled to the field part, and a voice coil coupled to the magnetic gap on the inner periphery and a diaphragm coupled to the frame on the outer periphery via an edge part A speaker device comprising a speaker and a speaker grille mounted on the front surface of the speaker, wherein a conical sheet-like extending portion extending outward from the edge portion and having an outward outer periphery is a free end. And a speaker device in which the speaker grille is mounted by pressing a part of the speaker grille from above to the extending portion.   The speaker device according to claim 1, wherein an angle of the extending portion opened in a conical shape is 30 ° or more.   The speaker device according to claim 1, wherein a thickness of the extending portion is equal to or substantially equal to a thickness of the edge.

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