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JP2017092988

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DESCRIPTION JP2017092988
Abstract: The present invention provides an electronic device provided with a speaker, wherein
the direction of the speaker can be appropriately and arbitrarily changed. An electronic device 1
according to the present invention includes a speaker unit 2, a housing 4, 6 and a rotation device,
and the speaker unit 2 is supported by a housing 4, and the rotation device is a housing 4, 6 The
first rotation device 3 for rotating the speaker unit 2 with respect to the housings 4 and 6 with
the direction intersecting the axis of the shaft as the rotation axis, and the speaker unit 2 with the
axes of the housings 4 and 6 as the rotation axis And a second rotating device 8 for rotating the
housing 4 and 6 with respect to the housing 4 and 6. [Selected figure] Figure 3
Electronic device, and automobile and house equipped with the same
[0001]
BACKGROUND OF THE INVENTION Field of the Invention The present invention relates to an
electronic device for housing a speaker used in a sound reproduction device, and an automobile
and a house provided with the electronic device.
[0002]
In recent years, in sound reproduction, in order to further improve the sense of realism of a twochannel stereo system, various methods have been adopted in which a so-called surround system
is adopted, and the user's hand directly changes the direction and position of the speaker. There
is.
[0003]
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1
Among these methods, a technique in which the direction of the speaker is directly changed by
the user's hand has an advantage that the visibility to the sound of the user can be improved by
matching it to the user.
As a document disclosing such a technique, for example, in Patent Document 1, a case in which a
grill is provided by projecting from a wall or the like and is installed in a wall by a case including
a speaker and a grille provided on the front opening side. A body assembly, and a mounting
mechanism for turning the speaker relative to the housing assembly to fix the speaker at a
desired angular position, the mounting mechanism being operable from the grille side projecting
from the wall The disclosed speaker apparatus technology is disclosed.
According to this configuration, the speaker unit can be directly rotated by the user's hand and
fixed at a desired angle. However, in the technique described in the document, the operability is
relatively poor because the speaker unit is directly rotated by the user's hand.
[0004]
Further, for example, in Patent Document 2, a speaker unit is attached to a pivoting chamber, a
pivoting shaft provided in the pivoting chamber is supported by a bearing provided in a fixed
chamber, and provided on an outer periphery of the pivoting chamber. There is disclosed a
technology in which a circular arc gear is driven by a motor via another circular gear.
[0005]
However, in the techniques described in Patent Document 2 and Patent Document 1, the angle
can be changed only in a linear direction, which is the direction of the speaker in the vertical or
horizontal direction, and the direction of the speaker is appropriately and arbitrarily changed. I
could not.
[0006]
Furthermore, for example, in Patent Document 3, a rotation reference surface forming unit that
forms a rotation reference surface, a rotation surface forming unit that forms a rotation surface
that can rotate along the rotation reference surface, and a predetermined angle inclination with
the rotation reference surface There is disclosed a technique which comprises a speaker attached
to the rotational surface forming means, and the direction of the reference axis of the speaker is
variable by rotation of the rotational surface forming means.
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[0007]
However, it was only possible to change the orientation of the reference axis of the speaker by
the rotation of the rotational surface forming means, and it was still impossible to change the
orientation of the speaker appropriately and arbitrarily.
[0008]
Japanese Patent Application Laid-Open No. 56-6188 Japanese Patent Laid-Open No. 6-6887
Japanese Patent Laid-Open No. 2001-298787
[0009]
The present invention takes an example of the problem to address such a problem.
That is, an object of the present invention is to provide an electronic device including a speaker,
in which the direction of the speaker can be appropriately and arbitrarily changed.
[0010]
In order to achieve such an object, the speech processing apparatus according to the present
invention at least has the following configuration.
[0011]
That is, the speaker unit, the housing, and the rotation device are provided, and the speaker unit
is supported by the housing, and the rotation device has the speaker whose rotation axis is a
direction intersecting with the axis of the housing. A first rotation device for rotating the unit
with respect to the housing, and a second rotation device for rotating the speaker unit with
respect to the housing with the axis of the housing as a rotation axis. Electronic equipment.
[0012]
BRIEF DESCRIPTION OF THE DRAWINGS It is a perspective view of the speaker apparatus
(electronic device) of the Example which is one exemplary aspect of this invention.
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It is AA sectional drawing in FIG.
It is a BB sectional view in FIG.
It is the disassembled perspective view which decomposed | disassembled the 2nd housing |
casing into the case part and the cover part.
FIG. 7 is a perspective view of the electronic device of FIG. 1 from which a lid and a speaker unit
are removed.
It is the perspective view which looked at the speaker unit from the back side.
It is the cross-sectional perspective view which cut | disconnected the 1st housing | casing 4 in
the side of the back side in FIG. 5 of a recessed part, and was seen from the said cross-section
side. It is an enlarged view of the edge part outer periphery (D arrow part circumference |
surroundings part in FIG. 1) of the front side of the electronic device of FIG. 1, (A) is a partially
expanded sectional view, (B) is a partially expanded sectional perspective view . It is a perspective
view which shows that the several elastic member is arrange | positioned on the surface of the
back side of a cylindrical part.
[0013]
Hereinafter, an embodiment of the present invention will be described.
[0014]
An electronic device according to an embodiment of the present invention includes a speaker
unit, a housing, and a rotation device, the speaker unit is supported by the housing, and the
rotation device rotates in a direction crossing the axis of the housing The shaft includes a first
rotation device for rotating the speaker unit with respect to the housing, and a second rotation
device for rotating the speaker unit with respect to the housing with the shaft of the housing as a
rotation axis.
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The orientation of the speaker unit can be arbitrarily changed by such an electronic device.
[0015]
Further, the case includes a first case and a second case, the speaker unit is supported by the
second case via the first case, and the first rotation device is a speaker The unit may be rotated
relative to the first housing, and the second rotating device may rotate the speaker unit and the
first housing relative to the second housing.
[0016]
Further, the first housing has a shape for housing the speaker unit, the second housing has a
shape for housing the first housing, and the first rotation device and the second rotation device
have a first shape. It may be attached to the case of
[0017]
The second rotation device includes a drive device (a motor to be described later), a rotation
member to which rotation of the drive device is transmitted, and a rotated member, and the
second housing is provided with the rotated member. It does not matter.
Since the electronic device includes the rotated member, the rotational force of the second
rotating device can be transmitted to the second housing.
[0018]
In addition, the rotated member may be disposed at the central portion of the second housing.
Since the rotational force of the second rotating device can be relatively reduced, power
consumption based on the second rotating device can be reduced, and an increase in size based
on the second rotating device can be suppressed.
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[0019]
An elastic member may be attached to one of the first housing and the second housing, and the
first housing may be in contact with the second housing via the elastic member. When the first
housing is rotated by the second rotating device, a gap may be formed between the second
housing and the first housing. In this case, the first case and the second case may be in contact
with each other to generate noise. In addition, vibration generated when the speaker unit is
rotated or driven is propagated to the entire electronic device, and the first housing and the
second housing are in contact with each other to generate noise. There is a case. However, when
the first housing contacts the second housing via the elastic member, an elastic force is exerted
with one of the first housing and the second housing facing the other. And can suppress the
generation of abnormal noise (backlash).
[0020]
The side surface of the speaker unit facing the first case is provided with a contact portion
contacting the first case, the first case is provided with a contact portion (a recess to be described
later), and the speaker unit is a first case You may move along the to-be-contacted part of the
body.
[0021]
Further, one of the contact portion and the contacted portion may be a convex portion and the
other may be a concave portion, and the contact portion and the contacted portion may extend in
the rotational direction of the first rotation device.
[0022]
In addition, the speaker unit has a side surface facing the first housing side, the contact portion is
disposed on the side surface of the speaker unit on the first housing side, and between the
central portion and the outer peripheral portion of the side surface of the speaker unit It may be
arranged.
[0023]
The to-be-contacted portion is a path when the speaker unit rotates, and the contact portion
slides while being in contact with the to-be-contacted portion, whereby the speaker unit can be
rotated along a desired path.
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[0024]
Further, the contact portion and the contact portion may extend in the rotational direction of the
first rotation device to reduce the thickness of the first housing in the axial direction or to make
the electronic device compact. it can.
Therefore, for example, when the electronic device of the present invention is installed on the
front of a car, a ceiling of a house, etc., the space for the electronic device can be made small, so a
space for arranging other electronic devices etc. is secured. can do.
[0025]
The contact portion of the speaker unit may have an opening, and a member fixed to the first
housing (a rod-like member to be described later) may pass through the opening of the contact
portion.
[0026]
Further, a plurality of contact portions of the speaker unit may be provided, and the member
fixed to the first housing may be a rod-like member.
A member fixed to the first housing passes through the opening of the contact portion, so that it
is not necessary to provide a separate shaft, and a desired axis is used as the rotation axis of the
speaker unit or the electronic device is miniaturized. Alternatively, the first and second housings
can be assembled separately, or the speaker unit can be removed and replaced when the speaker
unit fails.
[0027]
A plurality of contact portions are disposed on the side surface of the speaker unit facing the first
housing, a plurality of contacted portions are disposed on the first housing, and a member fixed
to the first housing is It may pass through the openings of the plurality of contact portions.
[0028]
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When the speaker unit is rotated by the first rotating device, a gap is generated between the
rotating member of the first rotating device and the rotated member of the speaker unit, and the
rotational force of the drive device is sufficient for the rotated member. It can prevent that it is
not transmitted.
Specifically, in the case where the rotating member is a gear and the rotated member has a
plurality of teeth corresponding to the gear, it is possible to suppress the occurrence of tooth
skipping.
[0029]
The member fixed to the first housing may be disposed in the vicinity of the end on the outer
peripheral side of the speaker unit among the two ends of the opening of the contact portion.
[0030]
By arranging the member fixed to the first housing in the vicinity of the end on the outer
peripheral side of the speaker unit among the two ends of the opening of the contact portion, the
member fixed to the first housing The electronic device can be miniaturized as compared with
the case where the component is disposed in the vicinity of the central portion of the speaker
unit.
In addition, when rotating the speaker unit, the position of the member fixed to the first housing
with respect to the opening can be changed between one end and the other end of the opening of
the contact portion. .
In other words, the range in which the position of the member fixed to the first housing in the
opening can be changed can be from the one end to the other end of the opening of the contact
portion.
Therefore, the speaker unit can be rotated in a wide range.
[0031]
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Also, the length of the opening or the length of the contact portion can be made relatively small.
[0032]
The speaker unit is supported by the first housing via the first rotation member, and the first
rotation member is supported by the support portion of the first housing, and the rotation shaft
of the first rotation member May intersect with the axis of the first housing.
When the speaker unit is rotated by the first rotation device while being in contact with the first
rotation member, the speaker unit can be smoothly rotated while the load on the first rotation
device is relatively reduced.
[0033]
The second rotation member may be supported by the first housing, and the speaker unit may be
supported by the first housing via the second rotation member.
[0034]
Since the speaker unit is supported by the first housing via the second rotating member while
being in contact with the second rotating member, when the speaker unit is rotated by the
second rotating device, the second rotating device The speaker unit can be smoothly rotated
while relatively reducing the load applied to the speaker unit.
[0035]
The rotation axis of the speaker unit by the first rotation device may intersect with the axis of the
speaker unit.
[0036]
A detector may be provided to detect the position of the speaker unit.
In addition, the detection unit may include a sensor.
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In addition, the first housing may include a second contact portion that contacts the side surface
of the speaker unit facing the first housing.
[0037]
When the speaker unit is rotated by the first rotation device, the second contact portion contacts
the side surface (rear surface described later) of the speaker unit facing the first housing and the
second contact portion. The position changes.
The sensor detects this change in position, whereby the position of the speaker unit can be
grasped.
[0038]
The speaker unit may be attachable to and detachable from the first housing.
If the speaker unit is removable, it is easy to remove and replace the speaker unit when the
speaker unit breaks down.
[0039]
The second housing may include a lid, and the lid may be disposed at a position facing the first
housing. With the lid portion, dust, dirt, and the like can be prevented from entering the space
between the speaker unit and the first housing or the space between the first housing and the
second housing. In addition, it is possible to prevent the external force from acting on the front
surface of the speaker unit and the intrusion of dust, dirt and the like into the speaker unit.
Moreover, it can suppress that the sound wave radiated | emitted from the front side of a speaker
unit and the sound wave leaking from the back side interfere. In the present invention, the "lid" is
only a part of the "second case", and various members and the like which can be disposed in the
"second case" are of course also disposed in the "lid". It can be done.
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[0040]
The lid portion may have a surface which is inclined from the outer peripheral portion of the
second housing toward the bottom portion of the speaker unit. By providing the surface in which
the lid is inclined, it is possible to prevent the sound wave emitted from the speaker unit from
being blocked by the lid when the speaker unit is rotated by the first rotating device.
[0041]
The speaker unit and the first housing may be connected by an elastic member. Also, the elastic
member may be made of an expandable member. When the speaker unit is rotated by the first
rotating device, a gap is generated between the rotating member of the first rotating device and
the rotated member of the speaker unit, and the rotational force of the drive device is sufficient
for the rotated member. It can prevent that it is not transmitted. Specifically, in the case where
the rotating member is a gear and the rotated member has a plurality of teeth corresponding to
the gear, it is possible to suppress the occurrence of tooth skipping.
[0042]
The control unit may control the rotation of the speaker unit, and the operation unit may
transmit a signal of the rotation of the speaker unit to the control unit. Further, the control unit
may control the rotation of the speaker unit by the first rotation device and the second rotation
device such that the speaker unit is directed in a desired or set direction. In addition, the
operation unit may transmit, to the control unit, a signal in a direction in which the speaker unit
should turn, based on information such as a signal input from the outside. Thus, a person who
listens to the sound emitted from the speaker unit of the electronic device can direct the speaker
unit in a desired direction by inputting information on the direction in which the speaker unit
should be directed to the operation unit.
[0043]
In addition, the control unit controls the first rotation device or the second rotation device to
rotate the speaker unit to the steady position by receiving a signal that the electronic device is in
the off state, and / or the control unit The first rotation device or the second rotation device may
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be controlled to rotate the speaker unit in a desired or set direction in response to a signal
indicating that the device is in the on state. By providing the electronic device with such a
configuration, when the electronic device is turned on, the speaker unit faces in a desired or set
direction and automatically enters the standby state. Also, when the electronic device is turned
off, the speaker unit is automatically controlled to return to the steady position.
[0044]
The electronic device according to the present embodiment described above is useful whether
the vehicle is provided or a house. In this case, the direction of the speaker unit can be arbitrarily
adjusted with respect to a person who listens to the sound from the speaker of the electronic
device in a car or in a house of a car. In addition, power consumption when changing the
orientation of the speaker unit can be reduced. In addition, the installation space of the electronic
device can be reduced.
[0045]
An embodiment which is an exemplary aspect of the present invention will be described based on
FIGS.
[0046]
FIG. 1 is a perspective view of the speaker device (electronic device) 1 of the present
embodiment.
2 is a cross-sectional view taken along the line A-A in FIG. 1, and FIG. 3 is a cross-sectional view
taken along the line B-B in FIG. As shown in FIGS. 1 to 3, the speaker device according to the
present embodiment mainly includes a speaker unit 2, a first housing 4 and a second housing 6.
2 to 20, illustration of components other than a cabinet of a speaker unit described later is
omitted.
[0047]
The speaker unit 2 includes a cabinet 21, a frame, a diaphragm, an edge, a voice coil, a voice coil
03-05-2019
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support portion for supporting the voice coil, and a magnetic circuit, which are not shown. The
cabinet is provided with an outer peripheral cylinder and a bottom. The outer cylindrical portion
or bottom of the cabinet may have an opening or may have a closed shape without an opening.
The frame is arranged in the cabinet. The diaphragm is supported by the frame through the edge.
The voice coil is supported by the diaphragm via a voice coil support. The magnetic circuit
comprises a magnet, a yoke, a plate, and has a magnetic gap in which a voice coil is disposed.
Also, if necessary, the voice coil may be supported by the frame via a damper. The sound
radiation side (hereinafter referred to as the front) of the speaker unit 2 is open. That is, the face
of the cabinet on the front side has an opening. The sound wave emitted by the speaker unit 2 is
emitted to the outside through the opening of the cabinet. The side opposite to the acoustic
radiation side is hereinafter referred to as the back side.
[0048]
The first housing 4 is a housing that accommodates the speaker unit 2. The first housing 4
includes an outer peripheral cylindrical portion 41 and a bottom portion 42. Moreover, the
projection part 43 which protrudes toward the 2nd housing | casing 6 mentioned later is
provided. The projection 43 is formed in an annular shape.
[0049]
The second housing 6 is a housing that accommodates the first housing 4. The second housing 6
includes an outer peripheral cylindrical portion 61 and a bottom portion 62. The bottom 62 is
provided with an opening 63. The bottom 62 may not have the opening 63. The first housing 4
and the second housing 6 are arranged to be substantially coaxially located.
[0050]
A gap 44 is provided between the bottom 42 of the first housing 4 and the bottom 62 of the
second housing 6. By providing this gap, the contact surface between the first housing 4 and the
second housing 6 can be made relatively small. For this reason, the frictional force generated
between the first housing 4 and the second housing 6 becomes relatively small, and the first
housing 4 becomes the second housing in the second rotation device described later. It can rotate
smoothly with respect to the body 6.
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[0051]
The second housing 6 includes a lid 64 having an outer peripheral portion 64 a and an inner
peripheral portion 64 b. The lid 64 is provided on the outer peripheral cylindrical portion 61 of
the second housing 6. The outer peripheral cylindrical portion 61 and the lid portion 64 may be
integrally formed or may be configured as separate members. The lid 64 is disposed at a position
facing the first housing 4. Moreover, the surface 65 which covers a part of 1st housing | casing is
provided. By providing the surface 65, a space formed between the speaker unit 2 and the first
housing 4 or a space formed between the first housing 4 and the second housing 6 Can prevent
the entry of dust etc.
[0052]
The surface 65 of the lid 64 is a first surface 66 formed in a flat plate shape, and an inclined
surface (second surface) inclined from the outer peripheral portion 6 a of the second housing 6
toward the bottom of the speaker unit 2. It has 67. By providing this inclined surface, when the
speaker unit 2 is rotated by the first rotation device described later, the front surface of the
speaker unit 2 is blocked by the lid portion 64, and a part of the sound wave is not radiated to
the outside You can suppress that.
[0053]
The first surface of the lid portion 64 is provided at substantially the same position with respect
to the front surface of the speaker unit 2. If necessary, the first surface of the lid 64 may be
provided at a lower position or an upper position with respect to the front surface of the speaker
unit 2.
[0054]
The outer peripheral portion 4 a of the first housing is disposed below the surface of the lid
portion 64.
[0055]
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The lid 64 is annularly formed.
The inner peripheral portion 64 b of the lid portion 64 is formed substantially the same as or
larger than the outer peripheral portion of the speaker unit 2. By providing such an inner
circumferential portion 64 b, contact between the lid portion 64 and the outer circumferential
portion of the speaker unit 2 can be suppressed.
[0056]
FIG. 4 shows an exploded perspective view in which the second housing 6 is disassembled into
the outer peripheral cylindrical portion 61 and the lid portion 64. As shown in FIG. 4, the lid 64
includes the opening 5. By having the lid portion 64, it is possible to prevent the external force
from acting on the speaker unit 2 or the entry of dust, dirt and the like into the space between
the speaker unit 2 and the first housing 4. Moreover, it can suppress that the sound wave
radiated | emitted from the back side of the speaker unit 2 and the sound wave radiated |
emitted from the front side of the speaker unit 2 interfere.
[0057]
After the first housing 4 and other components to be described later and the speaker unit 2 are
incorporated in the second housing 6, a part of the opening of the second housing 6 is covered
with the lid 64. Thus, the speaker device 1 as an electronic device is manufactured. Under the
present circumstances, the cover 64 is provided in the outer peripheral cylinder part 61 in the
state in which the nail | claw 68 of the cover 64 is located between the nails 69 of the outer
peripheral cylinder 61 of the 2nd case 6, Rotated relative to the body 6, the pawl 69 is placed in
the gap 64 c between the face 66 of the lid 64 and the pawl 68. By such an arrangement, the
cover 64 and the outer peripheral cylindrical portion 61 of the second housing are attached.
Further, when the cover 64 is removed from the outer peripheral cylinder 61 of the second
housing, the cover 64 can be removed by rotating the cover 64 in the reverse direction with
respect to the outer peripheral cylinder 61, and disassembled at the time of repair or the like. be
able to.
[0058]
FIG. 5 is a perspective view of the speaker device 1 of FIG. 1 from which the lid 64 and the
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speaker unit 2 are removed.
[0059]
As shown in FIGS. 2 and 5, a second rotation device 8 is disposed in the vicinity of the central
portion of the first housing 4.
The second rotation device 8 includes a motor 8 a as a drive device, a gear (rotation member) 8 b
rotatably supported by the first housing 4 and to which the rotation of the motor 8 a is
transmitted, and a second housing 6 And a gear (rotated member) 8c to which the rotation of the
gear 8b is transmitted.
[0060]
The gear 8 c is provided on the projection 62 a of the bottom 62 of the second housing 6.
[0061]
The drive device is not particularly limited as long as it is a device that applies a rotational force
to the rotating member.
The rotating member and the member to be rotated may be members that can transmit the
rotational force, and examples thereof include gears having teeth, and members such as wheels
having a surface that generates a frictional force. The gear 8 c is disposed in the vicinity of the
central portion of the second housing 6. The gear 8 c is disposed on the axis of the second
housing 6. The gear 8 c may be fixed to the second housing 6, and may be integrally formed or
may be configured as a separate member with respect to the bottom portion 42 of the first
housing 4.
[0062]
The projection 62 a is disposed in the inner circumferential portion 42 a of the bottom 42 of the
first housing 4. Further, the first case 4 is rotatably supported relative to the second case 6 by
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the projection 43 of the first case 4.
[0063]
Then, when the motor 8a is driven, its rotational force is transmitted to the gear 8b which is
meshed with the motor 8a and rotatably supported by the first housing 4, and the gear 8b
rotates with respect to the gear 8c.
[0064]
Then, the fixed gear 8 c and the gear 8 b rotate, and the first housing 4 rotatably supported by
the second housing 2 rotates with respect to the second housing 6.
As a result, the speaker unit 2 housed in the first housing 4 and thus in the first housing 4
rotates the axes of the first housing 4 and the second housing 6 as shown in FIG. , And rotates in
the direction of arrow XY shown in FIG.
[0065]
As described above, the second rotation device 8 is disposed in the first housing 4, and the axes
of the first housing 4 and the second housing 6 serve as a rotation axis, and the second housing
is disposed. Since the first housing 4 is configured to rotate with respect to 6, the rotational force
of the second rotating device 8 can be made relatively small. Therefore, power consumption
based on the second rotating device 8 can be reduced, and enlargement of the electronic device
based on the second rotating device 8 can be suppressed.
[0066]
As described above, the speaker unit 2 is accommodated in the first housing 4. The perspective
view which looked at the speaker unit 2 from the back side in FIG. 6 is shown. On the back
surface of the speaker unit 2, provided are projecting first contact portions 5a and 5b, a gear
(rotated member) 3c, and second contactable portions 9a and 9b corresponding to the contact
portions 18 described later. ing.
03-05-2019
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[0067]
The first contact portions 5 a and 5 b are arranged side by side on the rear side surface of the
speaker unit 2. These first contact portions 5a, 5b are disposed substantially in parallel. The first
contact portions 5a and 5b are disposed between the central portion 2a and the outer peripheral
portion 2b on the side surface on the back side of the speaker unit 2, and extend from the central
portion 2a toward the outer peripheral portion 2b . Since the first contact portions 5a and 5b are
disposed between the central portion 2a and the outer peripheral portion 2b, compared to the
case where the first contact portions 5a and 5b are disposed at the central portion 2a, The
thickness of the housing 4 in the axial direction can be reduced, and the speaker device 1 can be
made compact. Therefore, for example, when the speaker device 1 of the present embodiment is
installed on the front of a car or the ceiling of a house, the space for the speaker device 1 can be
made small, so a space for arranging other electronic devices It can be secured.
[0068]
On the other hand, as shown in FIG. 5 and the like, in the first housing 4, there is provided a first
contacted portion 10 for one of the first contact portions 5 a and 5 b to be fitted and slid. ing.
The first to-be-contacted portion 10 is formed in a concave shape corresponding to the first
contact portions 5a and 5b. The first contact portions 5 a and 5 b extend in an arc shape with an
axis on which the speaker unit 2 rotates with respect to the first housing 4 as a central axis.
[0069]
The first contact portions 5a and 5b, for example, one of the first contact portions 10 has a
convex shape, and the other has a concave shape, etc., to form a path along which a speaker unit
described later rotates. If it is a shape, limitation in particular will not be made. In addition, a
plurality of first contactable portions 10 may be provided in the first housing 4 corresponding to
the plurality of contact portions.
[0070]
FIG. 7 is a perspective view when the first housing 4 is cut at a position deeper than the central
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portion thereof. The speaker unit 2 is partially shown for the purpose of explanation. As shown
in FIG. 7, the first contact portion 5 a fits in the first contacted portion 10 and slides along the
first contacted portion 10 as a path. The speaker unit 2 can be rotated along a desired path by
sliding the first contact portion 5 a with respect to the first contacted portion 10 as a path.
[0071]
The first contact portions 5a and 5b have openings 15a and 15b. The openings 15a and 15b
open the side surfaces of the first contact portions 5a and 5b, and are formed along the direction
in which the first contact portions 5a and 5b extend. On the other hand, in the first housing 4, a
rod-like member 11 as a member fixed to the first housing 4 is disposed. The rod-like member
11 is fixed to the first housing 4 via the support portion 12. The rod-like member 11 passes
through the openings 15a and 15b of the first contact portions 5a and 5b.
[0072]
Since the rod-like member 11 passes through the openings 15a and 15b, the state in which the
first contact portion 5a is fitted to the first contacted portion 10 can be maintained, and the
rotation of the speaker unit 2 is smooth. To be done.
[0073]
Moreover, when rotating the speaker unit 2, use of the shaft used as the rotating shaft can be
refrained.
Therefore, the rotation axis can be set to a desired position. In addition, by avoiding the use of
the shaft as the rotation shaft, the space for arranging the shaft can be eliminated, and the
speaker device 1 itself can be miniaturized. Furthermore, by refusing the use of the shaft, the
speaker unit 2, the first housing 4 and the second housing 6 can be assembled separately, and
when the speaker unit 2 breaks down, the speaker unit 2 can be removed and replaced.
[0074]
In the first housing 4, a first rotation device 3 for rotating the speaker unit 2 with the direction
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19
intersecting the axis of the first housing 4 as a rotation axis (broken line C in FIG. 1) is disposed It
is done. The rotation axis also intersects the axis of the speaker unit 2. In the illustrated example,
the rotation axis indicated by a broken line C in FIG. 1 is a direction substantially orthogonal to
the first housing 4. Further, the rotation axis indicated by the broken line C in FIG. 1 is
substantially orthogonal to the axis of the speaker unit 2.
[0075]
The first rotation device 3 includes a motor 3a as a drive device, a gear (rotational member) 3b to
which the rotation of the motor 3a is transmitted, and a gear (rotational member) 3b 'to which
the rotation of the gear 3b is transmitted. It comprises a gear (rotated member) 3c and a support
3d provided on the back of the speaker unit 2 to which the rotation of 3b 'is transmitted. The
gear 3 b and the gear 3 b ′ are rotatably supported by the first housing 4 by the support 3 d.
The drive device is not particularly limited as long as it is a device that applies a rotational force
to the rotating member. The rotating member and the member to be rotated may be members
that can transmit the rotational force, and examples thereof include gears having teeth, and
members such as wheels having a surface that generates a frictional force. The first rotating
device 3 is disposed between the central portion of the first housing 4 and the outer peripheral
cylindrical portion 42 and adjacent to the second rotating device 8.
[0076]
When the motor 3a is driven, its rotation is transmitted to the gear 3b meshing with the motor
3a and then to the gear 3b ', and these gears rotate in a chain. Further, the rotation is transmitted
to a gear 3 c meshed with the gear 3 b ′ and fixed to a side surface on the back side of the
speaker unit 2, and the speaker unit 2 rotates with respect to the first housing 4 together with
the gear 3 c.
[0077]
As a result, the speaker unit 2 housed in the first housing 4 rotates in a direction orthogonal to
the axis of the first housing 4 as a rotation axis (broken line C-C in FIG. 1). The direction of this
rotation is, as shown in FIG. 1, the edge portion of the speaker unit 2 in the arrow Z direction,
that is, the direction of the arrow Z 'in FIG. As described above, in this embodiment, since the
speaker unit 2 can be moved in the direction of arrow Z 'in FIG. 1 and in the direction of XY in
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FIG. 1 as described above, the direction of the speaker can be arbitrarily changed. can do.
[0078]
When the speaker unit 2 is rotated by the first rotating device 3, the motor 3a of the first
rotating device 3 and the gear 3b to which the rotation of the motor 3a is transmitted, or
between the gear 3b and the gear 3b ' , And between the gear 3 b ′ and the gear c (hereinafter
referred to as “the motor 3 a, the gears 3 b, 3 b ′, and c”). ) (The connection between the
rotating members of the second rotating device 3) is separated, and it is possible for the motor
3a and gears 3b, 3b 'and 3c to generate tooth skipping (rotational force is not accurately
transmitted) There is sex.
[0079]
However, the rod-shaped portion 11 disposed in the first housing 4 and extending substantially
parallel to the rotation axis (broken line C) of the speaker unit 2 is the openings 15a, 15b at the
first contact portions 5a, 5b. In the state of having penetrated two (or more) of the above,
disengagement between the gears 3b, 3b 'and c in the first rotating device 8 (connection between
the rotating members of the first rotating device 8) is released It is possible to prevent the
transmission of rotational force, such as tooth skipping, by suppressing the situation. The motor
3 a and the gears 3 b and 3 b are supported by a support 3 d provided in the first housing 4. By
using the support portion 3d, it is possible to prevent separation of the motor 3a and the
meshing between the gears 3b and 3b (the connection between the rotating members of the first
rotating device 8).
[0080]
The openings 15a, 15b of the first contact 5a, 5b comprise two ends. In the illustrated example,
one of the two ends 15a1 and 15b1 is disposed on the outer peripheral side of the speaker unit
2, and the other ends 15a2 and 15b2 are disposed on the central side of the speaker unit 2. .
[0081]
When the speaker unit 2 is disposed at the steady position, the rod-like member 11 is disposed in
the openings 15a, 15b in the vicinity of one end 15a1, 15b1 of the openings 15a, 15b.
03-05-2019
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[0082]
Here, the steady position is the position of the speaker unit 2 before the first rotating device and
the second rotating device are driven.
Specifically, the steady position is a position where the front surface of the speaker unit 2 is
disposed on the opening side of the second housing as shown in FIGS. 2 and 7, and the steady
position is arbitrarily changed. be able to.
[0083]
When changing the direction of the speaker unit 2 by arranging the rod-like member 11 in the
vicinity of one end 15a1 or 15b1 of the opening 15a or 15b, the one end 15a1 or 15b1 of the
opening 15a or 15b The length to the end portions 15a2 and 15b2 can be the movement width
of the rod-like member 2. Therefore, the direction of the speaker unit 2 can be widely changed.
Further, the rotatable range of the speaker unit 2 can be made relatively large while the length of
the opening 15a (15b) or the first contact portion 5a (5b) is made relatively small.
[0084]
In FIG. 8, the enlarged view of the outer peripheral part (D arrow part periphery in FIG. 1) of the
speaker apparatus 1 of a present Example is shown. FIG. 8A is an enlarged cross-sectional view
of a part of the outer peripheral portion of the speaker device 1, and FIG. 8B is an enlarged
perspective view of the part. In FIG. 8B, the lid 64 of the second housing 6 is omitted.
[0085]
As shown in FIGS. 8A and 8B, in the outer peripheral portion of the speaker device 1, the outer
peripheral portion 4 a of the first housing 4 is outside the speaker unit 2, and the second outside
is outside the speaker unit 2. An outer peripheral portion 6 a of the housing 6 is disposed. The
surface 65 of the lid 64 of the second housing 6 projects so as to cover the outer peripheral
03-05-2019
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portion 4 a of the first housing 4.
[0086]
In addition, the outer peripheral portion 4a of the first housing 4 includes a protruding portion
4a1 that protrudes toward the second housing 6 side. The protrusion 4 a 1 is formed in an
annular shape, and includes a surface 4 a 2 facing the lid 64. One end of a plate spring (elastic
member) 13 is attached to the lower surface of the lid 64 facing the projection 4a1, and the
other end is in contact with the surface 4a2 of the projection 4a1. The plate spring 13 is made of
a metal member such as phosphor bronze, or a resin member such as rubber or polyurethane
resin. An elastic force (biasing force) of a plate spring acts on the first housing 4 in a direction
from the lid portion 64 to the first housing 4. Further, an elastic force (biasing force) acts on the
lid portion 64 in the direction from the first case 4 to the second case 6.
[0087]
The axis of the first housing 4 and the second housing 6 is set as a rotation axis (the alternate
long and short dash line E in FIG. 5) by the second rotating device 8 described above with respect
to the second housing 6. When the housing 4 is rotated, the first housing 4 is rotated in the
direction of arrow F in FIG. 8B, and the plate spring 13 moves on the surface 4a2 of the
projecting portion 4a1. That is, the first case 4 and the second case 6 are in contact via the
elastic member 13 fixed to the second case 6.
[0088]
Further, the elastic member 13 is attached to the cylindrical portion 64c of the lid portion 64
shown in FIG. FIG. 9 shows that a plurality of elastic members 13 are disposed on the back
surface of the cylindrical portion 64c. The elastic members 13 are disposed at different positions
in the circumferential direction. In addition, the elastic member 13 is in contact with the outer
peripheral portion 4 a of the first housing 4.
[0089]
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When the first housing 4 is rotated by the second rotation device 8, if a gap is formed between
the second housing 6 and the first housing 4, the first housing 4 And the second housing 6 may
be in contact with each other to generate noise. In addition, the vibration generated when the
speaker unit 2 is rotated or when the speaker unit 2 is driven propagates to the entire speaker
device 1, and the first housing 4 and the second housing 6 contact with each other. Abnormal
noise may occur.
[0090]
However, by providing the elastic member 13 between the first case 4 and the second case 6 as
in the present embodiment, the second case 6 can be made elastic toward the first case 4. The
force (biasing force) acts to suppress the generation of abnormal noise (backlash).
[0091]
In this embodiment, the elastic member 13 is fixed to the second housing 6 and moves relative to
the first housing 4 by way of example. It may be an aspect of moving relative to the case 6 of the
above.
[0092]
In the first housing 4, a support 14 fixed to the bottom 42 and a roll (first rotating member) 16
supported by the support 14 are provided.
As shown in FIG. 2, FIG. 3 and FIG. 7, while the second contacted portion 9 provided on the back
side of the speaker unit 2 is in contact with the roll 16, the speaker unit is operated by the first
rotating device 3. 2 rotates.
That is, the speaker unit 2 is supported by the first housing 4 via the roll 16 and the support
portion 14. Since the rear side surface of the speaker unit 2 (specifically, the second contacted
portion 9) is supported by the first housing 4 via the roll 16 and the support portion 14 while in
contact with the rotating roll 16, When changing the direction of the speaker unit 2 by the first
rotation device 3, the speaker unit 2 can be smoothly rotated.
[0093]
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As shown in FIG. 2, FIG. 3 and FIG. 8, a roll (second rotation member) 17 is provided on the outer
peripheral portion 4 a of the first housing 4. As can be seen from these drawings, the roll 17 is
supported by the first housing so as to be rotatable in the rotation direction (the direction of the
arrow Z ′) of the speaker unit 2 by the first rotation device 3. Further, the rear side of the
speaker unit 2 is in contact with the roll 17 and supported by the first housing 4 via the roll 17.
Therefore, when changing the direction of the speaker unit 2 by the first rotation device 3, the
speaker unit 2 can be smoothly rotated. In particular, by providing the roll 17 and the support
portion 14, the rotation of the speaker unit 2 is smoothened.
[0094]
As shown in FIGS. 8A and 8B, the roll 17 is disposed in the vicinity of the leaf spring (elastic
member) 13. When the speaker unit 2 is rotated by the first rotation device 3, the vibration is
propagated between the first housing 4 and the second housing 6 via the roll 17, and both
contact and differ from each other. Sound may occur. By disposing the plate spring 13 in the
vicinity of the roll 17, it is possible to damp the vibration and to suppress the generation of the
noise.
[0095]
As shown in FIGS. 5 and 7, a detection unit 18 is disposed in the first housing 4. The detection
unit 18 includes a contact portion 18 ′ that contacts the second contact portion 9 provided on
the back surface of the plurality of sensors 18 a and 18 b and the speaker unit 2. As the sensor, a
known sensor such as an optical sensor, a photoelectric element or a photodiode can be used.
When the speaker unit 2 is rotated by the first rotation device 3, the position of the contact
portion 18 ′ in contact with the back side surface of the speaker unit 2 (specifically, the second
contacted portion 9) is changed. Are detected by the sensors 18a and 18b. The sensor 18a
detects, for example, that the speaker unit 2 is at the steady position, and the sensor 18b detects
that the speaker unit 2 has been rotated by the second rotation device to the maximum rotation
angle. Thus, by using the plurality of sensors 18a and 18b, the position (rotational angle) of the
speaker unit 2 can be grasped by grasping two different positions of the contact portion 18 '.
Further, based on the detected information, feedback control can be performed by a control
function in an operation unit described later.
[0096]
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25
In the present embodiment, as shown in FIG. 2, the speaker unit 2 and the first housing 4 are
connected by an expandable spiral spring (elastic member) 19. One end of the spiral spring 19 is
connected to the connecting portion 20 provided on the bottom portion 42 of the first housing 4,
and the other end is provided on the side of the rear surface of the speaker unit 2 ( (See FIG. 6).
The speaker unit 2 and the first housing 4 are connected via the spiral spring 19.
[0097]
When the speaker unit 2 is rotated by the first rotating device 3, the meshing between the motor
3 a and the gears 3 b, 3 b ′ and c in the first rotating device 3 (between the rotating members
of the first rotating device 3 And the gear teeth may skip (rotational force may not be transmitted
accurately). However, since the speaker unit 2 and the first housing 4 are connected by the spiral
spring 19, the meshing between the motor 3 a and the gears 3 b, 3 b ′ and c in the second
rotation device 3 is achieved. It is possible to suppress the separation of (the connection between
the rotating members of the first rotating device 3), and to suppress the occurrence of a state
where torque is not accurately transmitted, such as tooth skipping.
[0098]
Although the spiral spring 19 is used in the present embodiment, any elastic member which is
stretchable can be used without any problem, and various conventionally known elastic members
such as general rubber cords and rubber bands can be used.
[0099]
In the present embodiment, the speaker unit 2 is configured to be attachable to and detachable
from the first housing 4.
First, the lid 64 of the speaker unit 2 is removed. Second, the rod-like member 11 is pulled from
the openings 15a and 15b. Third, the spiral spring 19 is removed from the hook hole 21.
Thereafter, the first case 4 and the speaker unit 2 accommodated in the second case 6 can be
pulled out of the second case 6. It can also be easily attached in the reverse order. Thus, since the
speaker unit 2 is detachable, when the speaker unit 2 breaks down, the speaker unit 2 can be
removed and replaced with a new speaker unit 2.
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[0100]
In the present embodiment, the speaker unit 2 includes the desired information (in addition to
the information from the operation unit described later and the request brought about by the
information from other control devices. Or the information set in advance (in addition to the
information set in advance in the speaker device 1 itself), the information stored in advance in
the storage means or the like or the request brought about by the information stored in advance
by the user is included. Control unit (not shown) for controlling the rotation of the speaker unit 2
by the first rotating device 3 and the second rotating device 8 so as to face in the direction, and
the speaker unit based on information input from the outside And an operation unit (not shown)
for transmitting a signal of a direction to be turned to the control unit.
[0101]
Thereby, a person who listens to the sound from the speaker of the speaker device 1 of the
present embodiment can direct the speaker unit in a desired direction by inputting information
on the direction in which the speaker unit 2 should be directed to the operation unit. Can. The
operation unit may be embedded in the main body of the speaker device 1 or may be a remote
control type capable of exchanging signals wirelessly or by wire. In addition, the function of the
operation unit may be performed by an on-vehicle device (car navigation system, car audio, etc.)
of a personal computer or a car.
[0102]
Further, the control unit receives the signal that the speaker device 1 itself is in the off state, and
the first rotation device 3 and the second rotation device 3 are arranged such that the speaker
unit 2 is positioned at the steady position where the front surface of the speaker unit 2 faces
forward. The first rotation device controls the rotation of the speaker unit 2 by the rotation
device 8 and causes the speaker device 2 to turn in a desired or set direction upon receiving a
signal that the speaker device 1 itself is in the on state. The rotation of the speaker unit 2 by the
third and second rotation devices 8 may be controlled. With such a configuration, when the
speaker device 1 itself is turned on, the speaker unit 2 turns to a desired or set direction,
automatically becoming a so-called standby state, and the speaker device 1 itself is turned off.
When this happens, the speaker unit 2 is automatically controlled to return to the steady
03-05-2019
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position.
[0103]
The speaker apparatus 1 according to the present embodiment described above is useful whether
the vehicle is provided or a house.
[0104]
When the vehicle includes the speaker device 1 of the present embodiment, the speaker device 1
can be attached to, for example, a door inner, a dashboard, a rear tray, a luggage tray, a ceiling,
various pillars, and the like.
In this case, the person who listens to the sound in the car inputs to the operation unit in
consideration of the number of passengers, the riding position, the preference and the state of
each person, and controls the direction of the speaker unit 2 to the optimum or favorite state. be
able to. Even if the number of passengers and the position of the rider are grasped by the
detection means mounted on the vehicle, the control unit or the like determines the optimum
direction of the speaker from the information, and the direction of the speaker unit 2 is
automatically changed. Good.
[0105]
Moreover, since the power consumption at the time of changing direction of the speaker unit 2 is
suppressed, the speaker apparatus 1 of a present Example has little load to a vehicle-mounted
battery. Furthermore, since the speaker device 1 of the present embodiment can reduce the
installation space, it is possible to secure a space for arranging other electronic devices, engine
parts, other in-vehicle devices, parts and the like.
[0106]
When the speaker apparatus 1 of the present embodiment is provided in a house, the speaker
apparatus 1 may be embedded in a housing structure such as a wall, a ceiling, a floor, a beam, a
pillar, or embedded in a housing accessory such as furniture. be able to. In this case, the person
03-05-2019
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who listens to the sound in the room of the house inputs the direction of the speaker unit 2 into
the operation unit in consideration of the number of people in the room, the position thereof, the
preference and state of each person, the structure of the room, etc. It can be controlled to an
optimal or favorite state. The number of people in the room and the position of the room are
detected by the detection means in the room, and the control unit or the like determines the
optimum direction of the speaker from the information to automatically change the direction of
the speaker unit 2 May be
[0107]
Moreover, since the power consumption at the time of changing the direction of the speaker unit
2 is suppressed, the speaker apparatus 1 of a present Example is energy saving. Furthermore,
since the speaker device 1 of the present embodiment can reduce the installation space, it is
possible to secure a space for arranging other electronic devices, housing parts, other housing
accessories, furniture and the like. .
[0108]
In addition, the Example mentioned above only showed the typical form of this invention, and
this invention is not limited to an Example. That is, various modifications can be made without
departing from the scope of the present invention.
[0109]
1: Speaker device (electronic device) 2: Speaker unit 3: First rotation device 4: First housing 5a,
5b: Convex portion 6: Second housing 6a: Lid portion 7: First rotation device 8: second rotating
device 8a: motor 8b: gear (rotating member) 8c: gear (rotated member) 10: recess 11: rod-like
member 13: plate spring (elastic member) 14: support 15a, 15b: opening 16: roller (first rotating
member) 17: roller (second rotating member) 18: sensor (detection unit) 19: helical spring
(elastic member)
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