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JPS56119599

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DESCRIPTION JPS56119599
Specification 10 Title of Invention
Speaker damper device
3. Detailed Description of the Invention The present invention relates to a speaker damper
device, and more particularly to an improvement of a standup damper. As is well known, the
speaker is conventionally configured as shown in FIG. That is, the cone paper 13 is attached to
one end of the wound coil bobbin 12 of the voice coil 11, and the cone paper 13 is attached to
the frame 15 by the arrow 14 via the edge portion 131. It is done. Further, a pole piece 16 is
inserted into the coil bobbin 12 from the other end, and the pole piece 16 is attached to a yoke
18 whose tip is closely opposed to the voice coil 11 via a permanent magnet I7. Furthermore, the
other end of the damper 20 whose one end is fixed to the frame 15 via the mounting member 19
is attached to the coil bobbin 12 and the inner wall surface of the coil bobbin 12 does not contact
the pole piece 16 It is done like that. The one end opening of the coil bobbin 12 is closed by a
dust cap 21. Here, the damper 20 shown in FIG. 1 is a so-called flat damper, which is separately
attached to the frame 15 via the attachment member 19 as shown, or the frame 15 itself is
attached Since it has to be formed in a shape replacing the member 19 and attached, there have
been problems such as an increase in the number of parts and a difficulty in manufacturing. ??
??? Conventionally, a damper 20 as shown in FIG. 2 has been used. That is, the EndPage: 1
damper 20 shown in FIG. 2 is a so-called rising damper, and since it is attached to the frame 15
using the rising portion 201 of the damper 20, the number of parts is small and the manufacture
is easy There are advantages of However, in the conventional upturning damper 20 as described
above, there is a problem that the rising portion 201 vibrates in the plane direction in
conjunction with the vibration of the coil bobbin 12 and the faithful electro-acoustic conversion
can not be performed. The present invention has been made in consideration of the above-
12-05-2019
1
mentioned circumstances, and by forming a reinforcing portion at a predetermined position of
the rising portion for preventing the vibration of the rising portion, the structure is simplified and
the manufacture is easy and faithful. It is an object of the present invention to provide a very
good speaker damper device that performs acoustic conversion. Hereinafter, an embodiment of
the present invention will be described in detail with reference to the drawings. In FIG. 3, the
same parts as in FIG. 2 are indicated by the same symbols, and only different parts will be
described here.
That is, a different point from the prior art is that the reinforcing portion 202 which protrudes
outward from the rising portion 201 of the damper 20 is formed at a predetermined position of
the rising portion 201 of the damper 20. According to such a configuration, vibration in the
surface direction of the rising portion 201 can be reduced by the action of the reinforcing
portion 202, and in particular, non-linear distortion generated at the time of large amplitude of
the coil bobbin 1-2 can be prevented. It is N by performing electro-acoustic conversion. In
addition, the reinforcing portion 202 can be easily formed by utilizing the forming means of the
conventional damper 20, and the manufacture is extremely easy. Here, the cone-shaped speaker
has been described in the above embodiment, but this is not limited to the cone-shaped speaker.
The damper 20 not only supports the coil bobbin 12 but also widely supports a vibrator for
electro-acoustic conversion. In short, the present invention is not limited to the above
embodiment, and various modifications can be made without departing from the scope of the
invention. Therefore, as described in detail above, according to the present invention, since the
reinforcement portion for preventing the vibration of the rising portion is formed at the
predetermined position of the rising portion, the structure is simplified and the backing is also
easy. It is possible to provide a very good loudspeaker damper device that performs faithful
electro-acoustic conversion.
4. Brief description of the drawings Figs. 1 and 2 are side sectional views showing a conventional
speaker damper device, and Fig. 3 is an explanatory view showing one embodiment of the
speaker damper device according to the present invention. . 11 иии Voice coil, 12 и и и Coil bobbin,
13 и и и и 1.14 и и и и и и и и и и и и и и и и и и и и и и и и и 16 piece pole piece, 17 и и и permanent magnet 1B и и и
Yoke, 19 ... mounting member, 20 ... damper, 21 ... dust cap. "Applicant Attorney Attorney
Takehiko Suzue 1 figure 1 figure 2 figure EndPage: ?
12-05-2019
2
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