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DESCRIPTION JPS52124237

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DESCRIPTION JPS52124237
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an exploded perspective view of a speaker
mounting apparatus before improvement, FIG. 2 is a sectional view of an elastic mounting frame
body in the speaker mounting apparatus of FIG. 1, FIG. 4 is an exploded perspective view of a
speaker attachment device showing one embodiment of the present invention, and FIGS. 5 and 6
are cross-sectional views of the speaker attachment device of the present invention. 3, 13 elastic
mounting frame body, 3a, 13a ... groove, 3b ... semicircular edge part, 3c. , 3d ... partial arcuate
edge part, 12 ... speaker, 12a ... outer peripheral flange part.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention relates to
an improvement of a speaker attachment device, in particular, a speaker attachment device for
attaching a speaker to a housing case or an inner wall surface of an electronic device case. The
applicant of the present invention previously found that by simply using a ring-shaped elastic
frame body provided with grooves along the inner circumferential surface of the outer
circumferential flange portion -1 - tρ of the speaker and 32 portions of the speaker, A speaker
mounting apparatus capable of easily attaching a speaker to an inner wall surface of an
electronic device case (Japanese Utility Model Application No. 50-120506) was provided. Next,
prior to explaining the present invention, the E speaker mounting apparatus provided by the
present applicant will be described. FIG. 1 is an exploded perspective view of the speaker
attachment device, in which the speaker 12 is attached to the speaker attachment position of the
inner wall surface 11 a of the case 11. With respect to the speaker attaching position, the elastic
attachment frame 13 is affixed with an adhesive or the like. The elastic mounting frame body 13
is formed in a ring shape by rubber or elastomeric synthetic resin material so that the inner
diameter of the ring is smaller or smaller than the diameter of the outer peripheral flange portion
12 a of the speaker 12 And is formed. On the inner peripheral surface of the elastic mounting
frame body 13, the outer peripheral flange portion 12 alC? E 5 groove z 3 a is provided. During
cutting of the groove taa, as shown in FIG. 2, the groove taa is inclined so that its width increases
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toward the back of the 2- The resilient mounting frame body 13 formed in this way is first
adhered to the speaker mounting position of the inner wall surface 11a of the case 11 with an
adhesive or the like, and then, in the groove 13a of the frame body 13 , The outer peripheral
flange 12a of the speaker 12 is fitted as shown in FIG. 3, so that the speaker 12 is mounted in the
case 11. At this time, the inclined surface portion of the groove 13 a presses the outer peripheral
flange portion 12 a of the speaker 12 by the elastic action. Therefore, the speaker 12 does not
rattle against the case IIK, and it is firmly supported. According to the speaker mounting
apparatus configured as described above, since the elastic mounting frame body 13 is merely
fixed to the speaker mounting position, the space occupied for mounting the speaker is
remarkably reduced, and the speaker is fixed to the elastic member V Since it is supported in this
manner, even when a sound is emitted, it does not cause a resonance phenomenon due to its
elastic action. In addition, since the number of parts for mounting is only the elastic mounting
frame 13, extremely small ≠ 3- <and the mounting process is also simplified.
Furthermore, even if the case is made of metal, you can attach the speaker without giving out its
unsightly spot welding and others. However, in the speaker mounting apparatus constructed as
described above, the edge of the elastic mounting frame body 13 for pressing the speaker is
formed all around the circumference, and the outer peripheral flange portion of the loudspeaker
fitted in the groove So as to hold down the entire circumference of the slider 12a. Therefore,
when fitting the outer circumferential flange portion 12 a of the speaker 12 into the groove 13 a
of the elastic mounting frame 13, there is a drawback that the edge portion of the frame body 13
stands at least over a half circumference, and it does not cause irregular erection. This
disadvantage is not favorable because it will markedly degrade the efficiency of the moat work of
the speaker. Therefore, focusing on this edge, even if the edge portion for pressing down the
speaker is not formed over the entire circumference of the frame body, its forming angle is made
larger than the semicircle by a larger angle Even if it is formed, it is possible to sufficiently
support the speaker, and it is possible to insert the speaker collar portion 4 - ≠ from the side
with respect to the groove of the inner peripheral surface, so that the above disadvantage is
solved by the brother . SUMMARY OF THE INVENTION The object of the present invention is to
eliminate the disadvantages of the speaker mounting device provided by the present applicant by
providing an edge of a resilient mounting frame for holding down the speaker with a semicircular
edge and at least one And a partial arc-shaped edge portion of the speaker mounting portion.
Hereinafter, the present invention will be described with reference to an embodiment shown in
the drawings. It is to be noted that this embodiment will describe the case where two partial arcshaped edges are formed. As shown in FIG. 4, the elastic mounting frame body 3 affixed with an
adhesive or the like to the speaker attaching position of the inner wall surface 11 a of the case
11 is made of rubber or a flexible synthetic resin material in a ring shape , And the groove 3a
into which the outer peripheral flange 12a of the speaker 12 is fitted is provided on the inner
peripheral surface thereof is the same as the elastic mounting frame 13 before the improvement
(see FIG. 1) It is a book. However, unlike the edge of the resilient mounting frame body 13 before
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improvement, the edge portion which presses the speaker 1 - - - 1 Expansion L of this elastic
mounting frame 3 is different from the edge portion of the elastic mounting frame body 13
before being modified, and the semicircular edge portion 3 b and the portion And two arc-shaped
edges 3 c, 3 c +, and the remaining edges are removed. That is, the edge 3 b is formed with its
forming angle over the center of the ring-shaped elastic mounting frame 3 over '18000 half the
circumference, and the two edges 3 c and 3 d are , It is formed at an appropriate position in the
portion of about 180 ° opposite to the side where the semicircular edge 3 b is formed, with the
formation angle of "ff 1 O °" respectively.
And the remaining edges are increased. If the edge of the elastic mounting frame 3 is improved
in this way, as shown in FIG. 5, except for attaching the speaker 12, firstly, as shown in FIG. 5,
with respect to the groove of the semicircular edge 3 b of the elastic mounting frame 3 Then, the
outer circumferential flange 12a of the speaker 12 is fitted from the side, after which the two
partial arc-shaped edges 3c, 3d are erected and raised and the flange 12a of the speaker 12 , And
the kneading can be pushed in by the two edge portions 3c, 3d. As shown in No. 6 [1, the outer
peripheral flange portion 12 a fitted in the groove 3 a of the elastic mounting frame 3 is mainly
supported by the semicircular edge portion 3 b And the proper position of the remaining half
circumferential flange portion is pressed and supported by the two partial arc-shaped edge
portions 3 c and 3 d, so that the elastic mounting frame body 13, the edge portion of which is
formed over the entire circumference 4 h and Likewise, it is possible to reliably increase the
speaker 12 without looseness against the case IIK. As described above, according to the present
invention, when the speaker 12 is to be added to the elastic mounting frame body, simply by
raising the partial arc-shaped edge portion uprightly, the outer peripheral flange portion 12 a is
fitted to the groove 3 a easily So that the disadvantages are eliminated by the brothers.
Moreover, since the partial arc-shaped edges 3 c and 3 d are formed by independent edges which
are not continuous with other edges, it is easy to hurt to raise the stiffness, so that the elastic
attachment frame Even after fixing the body 3 to the case 11, it is easy to attach speaker
attachment and detachment easily. Therefore, it is possible to improve to a very practical speaker
mounting device which can remarkably improve the efficiency of the speaker mounting work. In
the above embodiment, two partial arc-shaped edges are formed, but it goes without saying that
at least one knife is good.
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