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JPS5412723

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DESCRIPTION JPS5412723
Title of the Invention
@ Motion feeling unit
3. Detailed Description of the Invention The present invention converts a sound signal from an
audio reproduction device such as a stereo device into mechanical vibration and makes the body
directly feel the vibration, thereby providing a sense of realism in music reproduction. The
present invention relates to a sense of reality reproducing unit for obtaining. Recently, in order to
increase the sense of reality when playing back music by a stereo device etc., a chair in which
part of the output (voice) signal from the stereo device etc. is converted into mechanical vibration
to vibrate the seat etc. Etc have been devised. However, the conventional device for converting
the output signal from the stereo device or the like into mechanical vibration is integrally
incorporated in the lower surface of the seat of the chair, so it is not versatile. The invention
provides a versatile reality reproduction unit. Hereinafter, the reality reproduction unit of the
present invention will be described based on the drawings. In FIG. 1 and FIG. 2, 1 is an elastic
material having a low Young's modulus and a high density (for example, an elastic vibrator
formed of a sponge comb having a hardness of about 20 degrees and a 2Fi elastic vibrator 1). A
vibration control member embedded in the elastic vibrator 1 to prevent extreme deformation and
reduce its natural frequency fo, the vibration control member 2 is made of steel or the like,
expanded metal , A perforated plate or a lead plate. The bottom surface KVi of the elastic vibrator
1 and the hard diaphragm 3 formed in a metal EndPage: 1 group / non-metal are integrally
bonded, and the longitudinal groove 4 is provided at the center of the upper surface of the elastic
vibrator 1. It is formed, and the upper surface is divided into two human body side pointing
surfaces 1 & 11L. A vibrating device 5 is attached to the hard diaphragm 3. The vibrating device
5 is driven by an audio current from a sound reproducing device (not shown) to generate a
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mechanical vibration force. The vibration device 5 has a support shaft 6 fixed to the hard
diaphragm 3 as shown in FIG. 3 and a pair of flexible plates 7 and 8 fixed to the support shaft 6
at a predetermined interval. . Although an example in which the flexible & 7.8 I / i elastic
material is formed into a corrugated plate is shown, the flexible plates 7 and 8 may be formed of
a flat elastic body instead of the corrugated plate. is there. The vibrating device 5 has a
cylindrical casing 9 made of a synthetic resin fixed to flexible plates 7 and 8 at one end, an
annular magnet 10 fixed in the casing 9, and an N pole of the magnet 10. And a fixed annular
iron pole 11; One end! 1112a is loosely fitted between the magnetic pole 11 and the support
shaft 6, and the other end is fixed to the south pole of the magnet 10 and has a cylindrical iron
magnetic pole 12, a holding plate 13 attached to the support shaft 6, and one end The coil
cylinder 14 attached to the holding plate 13 and having the other end loosely fitted between the
magnetic poles 11.12, the coil 15 wound around the outer periphery of the coil cylinder 14, and
the coil 15 attached via the cord 16 And a connection plug 17 (FIG. 2).
The realism reproducing unit having such a configuration has, for example, latches B18a at both
ends as shown in FIG. The lower spring 20 of the seat 19 of the vehicle is detachably hooked and
used via a rod-like or plate-like bracket 1 a provided with an 18a. In the figure, the lower spring
20 is held by the skeleton 21 of the seat 19 to hold the sponge sheet 22. In the present
embodiment, an example is shown in which the reality reproduction unit of the present invention
is used by being attached to the seat 19 of a vehicle, but the reality reproduction unit of the
present invention is necessarily used only for the seat of a vehicle Instead, it may be used by
attaching it to the seat of a vehicle such as a ship or plane, or it may be used by attaching it to
furniture such as a chair. You may use it. Next, the operation of the sense of reality reproduction
unit used in this way will be described. After inserting the connection plug 16 of the realistic
reproduction unit into the output terminal of a stereo device (not shown) and passing an audio
output signal from the stereo device to the coil 15 of the vibrating device 5, a magnetic force is
generated from the coil 15 around the coil 15 The magnetic force pervades the magnetic force
between the magnetic poles 1112 and the casing 9 and the support shaft 6 bend the flexible
plates 7 and 8 to relatively vibrate. This vibration is transmitted to the rigid diaphragm 3 via the
support shaft 6 and then transmitted to the elastic vibrator 1. Here, although the voice output
signal includes a wide range of voice signals from low to high, the mass of the casing 9 side of
the vibrating device 5, the action of the vibration control plate, the elastic vibrating body 1, etc.
The vibration is absorbed, and the vibration in the low frequency range is transmitted to the
elastic vibrator 1 to vibrate the elastic diaphragm 1. Therefore, the vibration of the low frequency
range transmitted to the elastic vibrator 1 is transmitted from the human body side directional
surfaces 1a and 1a to the transmission object such as a rate. In the present embodiment, an
example is shown in which the holding plate 15 to which the coil cylinder 15 is attached and the
hard diaphragm 3 are separately formed, but the holding plate 13 is not necessarily provided, as
shown in FIG. The coil cylinder 14 may be directly attached to the hard diaphragm 3. In the
embodiment described above, an iron plate. Although an example in which one vibration device 5
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is attached to a hard diaphragm 3 such as an aluminum plate has been shown, the present
invention is not necessarily limited to this configuration. For example, as shown in FIG. A pair of
vibration devices 5.5 disposed at the left and right sides of the rigid vibration plate 3 so as to
transmit the left and right audio output signals of the stereo device to the respective vibration
devices 5.degree. As shown in the figure, a pair of hard diaphragms 3.3 disposed on the left and
right of the longitudinal groove 4 is fixed to the back surface of the elastic vibrator 1 with
EndPage: 2, and each vibrator 5 is fixed to each hard diaphragm 3.6. The left and right audio
output signals of the stereo device may be transmitted to the respective vibrating devices 5 and 5
by attaching the 55.
In this case, since the left and right audio output signals can be separately converted into
mechanical vibration and reproduced, the sense of reality can be increased more than in the
embodiments shown in FIGS. 1 to 4. As described above, the realistic reproduction unit of the
present invention unitizes the device for converting an audio signal into mechanical vibration
and transmitting it to a seat or the like, so that it can be used by attaching to a vehicle seat or
chair. It can be used as it is without being attached to a seat or chair. Therefore, the sense of
reality reproduction unit of the present invention is versatile. In addition, since the realistic
reproduction unit of the present invention has a vibration device for converting an audio output
signal into mechanical vibration attached to an elastic vibration member in which a vibration
control plate is embedded, the natural frequency f. To reduce mechanical vibration in the high
range and to reproduce only mechanical vibration in the low range.
4. Brief description of the drawings. FIG. 1 is a perspective view showing an embodiment of the
field feeling reproducing unit of the present invention, FIG. 2 is a cross-sectional view taken
along line 1-1 of FIG. 1, and FIG. 2 is a longitudinal sectional view of the vibration device shown
in FIG. 2, FIG. 4 is a partial sectional view showing an application example of the presence
reproduction unit of the present invention, and FIG. 5 is a partial cross section showing another
embodiment of the vibration device. FIG. 6, FIG. 6 and FIG. 7 are side views showing another
embodiment of the reality reproduction unit of the present invention. 1: elastic vibrator, 1a:
human body side pointing surface, 2: vibration control plate, 5: vibration device. Patent Applicant
Body Sonic Inc. EndPage: 3 Fig. 3 Fig. 4 O 5 Fig. 6 O 7 囚 End Page: 4
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