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JP2013150080

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This translation is machine-generated. It cannot be guaranteed that it is intelligible, accurate,
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DESCRIPTION JP2013150080
PROBLEM TO BE SOLVED: To provide a headphone which enables a user to easily change an
attachment angle of a driver with respect to a user's ear within a predetermined range to enable
good sound reproduction. SOLUTION: The headphone comprises at least a driver unit, a baffle to
which the driver unit is attached, and a housing containing the driver unit and the baffle and
having an ear pad, the baffle and the housing being in the housing The rotary shaft and bearing
for pivotally supporting the baffle in a predetermined rotational direction with respect to the
housing, and a locking mechanism for fixing the baffle at a predetermined angle with respect to
the housing, the locking mechanism comprising the baffle or The housing has a plurality of
locking holes arranged at predetermined angular intervals concentrically around the rotation axis
in one of the housings, and a resiliently supported steel ball engaged with the locking holes in the
other of the baffle or the housing. . [Selected figure] Figure 2
ヘッドフォン
[0001]
The present invention relates to a headphone for supplying an audio signal to a driver included
in a housing provided with an ear pad, converting it into sound and reproducing it near the user's
ear, and in particular, to set the mounting angle of the driver to the user's ear The invention
relates to headphones that are variable in range and allow good sound reproduction.
[0002]
Headphones, which are audio devices that reproduce sound, may be provided with an ear pad
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1
and fixed to a housing with a driver that converts sound signals to sound waves.
There are an open type provided with a vent in which the air on the back side of the driver's
diaphragm communicates with the outside and a closed type provided with no vent in the
headphone housing. In headphones corresponding to stereo signals, two housings including left
and right drivers are connected by a head band or the like for mounting on the head of the user.
In headphones, which secure the housing near the user's ear, the driver is secured to the baffle of
the housing so as to be positioned and oriented relative to the pinna. Headphone drivers are
often attached to the housing so as to substantially face the pinna.
[0003]
Conventionally, a first ear pad is provided around the first housing having a size surrounding the
auricle so as to improve the wearing feeling and sound quality of the headphones, and a desired
angle relative to the first housing is obtained. Preferably, the second housing is mounted through
the support member, the driver unit is mounted in the second housing, and the second housing
and the second ear pad covering the front surface of the driver unit are mounted. There is a
closed type headphone which is characterized (Patent Document 1).
[0004]
Also, according to the usage environment, in order to be able to be used as closed type
headphones or open type headphones easily according to the use environment, it is relatively
compact that is mounted in the ear ring of the listener via a predetermined support means. In the
headphone having the main headphone main body, the peripheral edge can come in contact with
the ear shell or can wrap the ear shell in either the headphone main body or the support means,
and the predetermined capacity is substantially sealed on the back side of the headphone main
body. There is a headphone that is equipped with a sound shell that provides an acoustic space
(Patent Document 2).
[0005]
Patent documents 1: Unexamined-Japanese-Patent No. 7-327291 (FIG. 1-FIG. 6) UnexaminedJapanese-Patent No. 2001-326986 (FIG. 1-FIG. 4)
[0006]
However, none of the prior art headphones are sufficient.
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2
The position and direction in which the driver is attached to the pinna have a large effect on the
acoustic characteristics of the headphones and the reproduction sound quality.
If the headphone's driver is mounted on the housing's baffle in an adjustable-angle manner so
that it can be placed in a predetermined position and orientation with respect to the pinna, stable
audio reproduction, unless it is a reproducible angle-changing mechanism There is a problem
that you can not
[0007]
The present invention has been made to solve the above-mentioned problems of the prior art,
and its object is to provide an audio signal to a driver included in a housing provided with an ear
pad, and to provide audio in the vicinity of the user's ear. It is an object of the present invention
to provide a headphone which allows a user to easily change the mounting angle of the driver
with respect to the user's ear within a predetermined range, thereby enabling good sound
reproduction.
[0008]
The headphone according to the present invention is a headphone comprising a driver unit, a
baffle to which the driver unit is attached, and a housing containing the driver unit and the baffle
and having an ear pad, the baffle and the housing being relative to the housing A rotating shaft
and a bearing for pivotally supporting the baffle in a predetermined rotational direction, and a
bearing, and a locking mechanism for fixing the baffle at a predetermined angle with respect to
the housing, the locking mechanism comprising the baffle or the housing It has a plurality of
locking holes arranged at predetermined angular intervals concentrically around the rotation axis
on one side, and a resiliently supported steel ball engaged with the locking hole in the other of
the baffle or the housing.
[0009]
Preferably, in the headphone of the present invention, the rotation axis and bearings of the baffle
and the housing are defined along the substantially vertical direction, and the predetermined
rotational direction of the baffle defined along the vertical direction is substantially horizontal. is
there.
[0010]
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In addition, preferably, the headphone according to the present invention has at least two or
more steel balls of the locking mechanism, and the plurality of locking holes engage with one
corresponding locking hole of the first steel ball. In addition, the second steel balls are disposed
at predetermined angular intervals concentrically about the rotation axis so that the second steel
balls do not engage with the other locking holes.
[0011]
Preferably, in the headphone according to the present invention, the plurality of locking holes
corresponding to the first steel ball of the locking mechanism and the plurality of locking holes
corresponding to the second steel ball are respectively the same predetermined When arranged
at angular intervals, and when the baffle and the housing relatively rotate at an angle of 1/2 of
the predetermined angular interval, either one of the first steel ball or the second steel ball is
locked Engage the hole.
[0012]
Also preferably, the headphones of the present invention comprise two drivers and a housing
corresponding to the user's ears and a headband connecting the two housings.
[0013]
Hereinafter, the operation of the present invention will be described.
[0014]
The headphone of the present invention is a headphone comprising a driver unit, a baffle to
which the driver unit is attached, and a housing that accommodates the driver unit and the baffle
and has an ear pad.
The headphones may comprise two drivers and housings corresponding to the user's ears and a
headband connecting the two housings.
In addition, the housing may be a closed type that seals the air on the back side of the diaphragm
of the driver unit, or may be an open type having one or more vents.
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[0015]
The headphone of the present invention comprises a rotating shaft and a bearing for axially
supporting the baffle and the housing so as to pivot the baffle in a predetermined rotational
direction with respect to the housing, and a locking mechanism for fixing the baffle at a
predetermined angle with respect to the housing And.
This locking mechanism comprises a plurality of locking holes arranged at predetermined
angular intervals concentrically around the rotation axis in either one of the baffle or the
housing, and the other locking hole of either the baffle or the housing And a resiliently supported
steel ball engaged with the
Therefore, the user can change the mounting angle of the driver with respect to the user's ear,
that is, the angle of the baffle with respect to the housing, by which the steel ball of the locking
mechanism engages with any of the locking holes. The range can be changed to be reproducible,
and headphones can be realized that enable good sound reproduction.
[0016]
Specifically, in the headphone locking mechanism, the rotating shaft and bearing of the baffle
and the housing are defined along the substantially vertical direction, and the predetermined
rotational direction of the baffle defined along the vertical direction is It is configured to be
substantially horizontal.
The headphone driver simulates the case where the sound wave comes from the side of the
user's side when the angle is almost directly opposite to the pinna, and when the angle is located
on the front side of the pinna. To simulate the case where the sound wave comes from the front
of the user, and to simulate the case where the sound wave comes from the rear of the user when
the angle is on the rear side of the pinna. Become.
Therefore, the user can easily change the acoustic characteristics of the headphones and the
reproduction sound quality according to the user's preference, including the sound field feeling
in which the arrival directions of the sound waves are different.
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[0017]
In particular, the locking mechanism of the headphone has at least two or more steel balls, and
the plurality of locking holes are engaged with the second locking hole when the first steel ball
engages with the corresponding one locking hole. The steel balls are arranged at predetermined
angular intervals concentrically about the rotation axis so that the steel balls do not engage with
the other locking holes.
The plurality of locking holes are arranged at predetermined angular intervals concentrically
about the rotation axis in one of the baffle or the housing, so that the row of the locking holes
corresponding to the first steel ball and the second steel By arranging the balls so as to be
different from the corresponding rows of locking holes, the mounting angle of the driver with
respect to the user's ear can be set to be easily changed by the user in finer angle steps.
[0018]
Specifically, the plurality of locking holes corresponding to the first steel ball of the locking
mechanism and the plurality of locking holes corresponding to the second steel ball are arranged
at the same predetermined angle intervals, respectively. Then, when the baffle and the housing
relatively rotate at an angle of 1/2 of the predetermined angular distance, either the first steel
ball or the second steel ball engages with the locking hole Just do it.
If the diameter of the first steel ball or the second steel ball of the locking mechanism is large to
a certain extent, it may be difficult to reduce the predetermined angular distance, but in this way
The angular steps can be made substantially halved with repeatability.
[0019]
The headphones of the present invention can allow the user to easily change the mounting angle
of the driver to the user's ear within a predetermined range to enable good sound reproduction.
[0020]
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It is a figure explaining the headphones 1 by preferred embodiment of this invention.
(EXAMPLE 1) A locking mechanism of the housing 4 of the headphone 1 according to a preferred
embodiment of the present invention will be described. (EXAMPLE 1) A locking mechanism of
the housing 4 of the headphone 1 according to a preferred embodiment of the present invention
will be described. (EXAMPLE 1) A locking mechanism of the housing 4 of the headphone 1
according to a preferred embodiment of the present invention will be described. (EXAMPLE 1) A
locking mechanism of the housing 4 of the headphone 1 according to a preferred embodiment of
the present invention will be described. Example 1
[0021]
Hereinafter, although headphones according to preferred embodiments of the present invention
will be described, the present invention is not limited to these embodiments.
[0022]
FIG. 1 is a view for explaining a headphone 1 according to a preferred embodiment of the
present invention.
2 to 5 are a perspective view or a partial cross-sectional view for explaining the locking
mechanism of the housing 4 of the headphone 1. Specifically, FIG. 1 is a plan view of the user
100 using the headphone 1 as viewed from above, and the right side of the central dotted line is
a partial cross-sectional view for explaining the inside of the housing 4 of the headphone 1. 2 (a),
4 (a) and 5 (a) are perspective views of one housing 4 and FIGS. 2 (b), 4 (b) and 5 (b) are It is
each AA 'cross section. Furthermore, FIG. 3 is a figure explaining the latching mechanism which
the housing 4 mentions later, and is an O-B partially expanded sectional view in FIG. As will be
described later, the structure of a part of the headphone 1 which is unnecessary for the
description, the internal structure, and the like are not shown.
[0023]
The headphones 1 are placed on the head 101 of the user 100, and housings 4L and 4R
including the left and right drivers 2 near both ears 102 and 103 of the user 100 (in the
following, the housing 4 is described I assume. ) Is an overhead type headphone provided with a
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head band 6 for fixing the The housing 4 is provided with a baffle 3 for fixing the driver 2 inside,
and a flexible ear pad 5 at a portion that abuts on the head 101 of the user 100. The housing 4
and the headband 6 include hangers (not shown) for pivoting the housing 4 so that relative
position and angular adjustment of the housing 4 and the headband 6 can be performed. Further,
the housing 4 of the headphone 1 includes a terminal portion (not shown) to which a cable (not
shown) connected to the driver 2 is connected. The direction of the arrow F in FIG. 1 is the
forward direction of the user 100, and in the following description, it coincides with the X
direction in the perspective views shown in FIGS. 2 (a), 4 (a) and 5 (a). Do. Further, the vertically
upward direction in FIG. 1 coincides with the Z direction in the perspective views shown in FIGS.
2 (a), 4 (a) and 5 (a).
[0024]
The housing 4 of the headphone 1 shown in FIGS. 2 to 5 omits illustration of a part of the
structure unnecessary for the description of the hanger, the connection cord, the appearance
decoration, etc. corresponding to the connection with the headband 6. . The housing 4 is made of
resin and accommodates therein the driver unit 2 and the baffle 3 to which the driver unit 2 is
attached. The housing 4 of the present embodiment is an open type housing having a plurality of
vent holes through which the air on the back side of the diaphragm of the driver unit 2
communicates with the outside. Moreover, the baffle 3 which fixes the driver 2 is also comprised
with resin. The driver 2 is screwed to the baffle 3.
[0025]
The baffle 3 and the housing 4 have a locking mechanism for pivoting the baffle 3 in a
substantially horizontal direction within a predetermined angle range with respect to the housing
4 and fixing the baffle 3 at a predetermined angle. That is, as shown in FIGS. 2, 4 and 5, the baffle
3 to which the driver unit 2 accommodated in the housing 4 is attached changes the position and
angle at which the driver unit 2 faces the pinna of the user 100. As it can be, it is configured to
rotate within a predetermined angular range about an imaginary axis O of rotation defined along
the Z direction which is the vertical direction. Specifically, the baffle 3 is provided with rotational
shafts (not shown) respectively projecting at two upper and lower places where the axis O passes
the center, and the housing 4 pivotally supports these rotational axes at two corresponding
places. It has a bearing (not shown).
[0026]
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Therefore, when the baffle 3 is pivoted in a substantially horizontal direction, in the case shown
in FIG. 2, the driver 2 and the baffle 3 of the headphone 1 are disposed at an angle substantially
facing the pinna. Further, the driver 2 and the baffle 3 are disposed at an angle located on the
front side of the pinna in the case shown in FIG. 4 and are disposed at an angle located on the
rear side of the pinna in the case shown in FIG. Ru. In the present embodiment, the relative angle
θ of the baffle 3 with respect to the housing 4 is set to the angle θ = 0 ° in the case shown in
FIG. 2, and the angle θ is set to a positive value in the case shown in FIG. In the case shown, the
angle θ is a negative value.
[0027]
Further, the locking mechanism of the baffle 3 and the housing 4 locks the baffle 3 at a
predetermined angle with respect to the housing 4, but the housing 4 is at a predetermined angle
interval on concentric circles 40 centered on the rotation axis O. It has a plurality of locking
holes 41 or 42 arranged. In a region where the angle θ has a positive value in the X-Y plane
shown in the drawing, the set of locking holes 41 has an angle α of 0 ° to 60 ° at a
predetermined angle interval of 10 ° with respect to the X-axis positive direction. It will be
installed in 7 places where it will be °. Further, another set of locking holes 42 is provided at a
predetermined angular interval of 10 ° at an angle β of 10 ° with reference to the negative
direction of the X-axis in a region where the angle θ has a negative value in the illustrated X-Y
plane. It is provided in six places where it becomes degree-55 degrees.
[0028]
The baffle 3 has elastically supported steel balls 31 or 32 engaged with the locking holes 41 or
42 of the housing 4. The steel balls 31 and 32 are elastically supported so as to apply a biasing
force by a spring 33, and the spherical surface is a housing, as illustrated for one steel ball 31
and the locking hole 41 in the partially enlarged sectional view of FIG. Contact 4 Therefore, the
steel balls 31 and 32 always exert the biasing force of the spring 33 which is an elastic body on
the housing 4. The steel balls 31 and 32 are upper and lower corner portions of the substantially
rectangular baffle 3, and as shown in FIG. 2, concentric circles coinciding with concentric circles
40 centered on the axis of rotation O, and central points of rotation The Y axis passing through
the axis O, which is the axis O, is symmetrical and disposed at the intersection of the angle θ and
the angle line corresponding to ± 60 °.
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[0029]
As a result, when the baffle 3 is rotated with respect to the housing 4, the steel balls 31 and the
locking holes 41 arranged on the corresponding concentric circles 40 or the steel balls 32 and
the locking holes 42 are predetermined. The locking mechanism can lock the baffle 3 at an angle
relative to the housing 4 as it engages at a relative angle θ. In the case of the angle θ = 0 °
shown in FIG. 2, one steel ball 31 and the locking hole 41 corresponding to the angle α of 30 °
are engaged. Further, in the case of the angle θ = + 15 ° shown in FIG. 4, the other steel ball 32
and the locking hole 42 corresponding to the angle β of 45 ° are engaged. Further, in the case
of the angle θ = −25 ° shown in FIG. 5, the other steel ball 32 and the locking hole 42
corresponding to the angle β of 5 ° are engaged.
[0030]
Thus, in the headphone 1 of this embodiment, the mounting angle of the driver 2 with respect to
the ear of the user 100, that is, the relative angle θ of the baffle 3 with respect to the housing 4
Since it is possible to change whether or not to engage with the locking holes 41 or 42, it is
possible to change in a predetermined range so as to be reproducible and to enable good sound
reproduction. In the case of FIG. 2, the driver 2 of the headphone 1 is at an angle substantially
directly facing the pinna of the user 100, thereby realizing the case where a sound wave arrives
from the sideways direction. Further, in the case of FIG. 4, the driver 2 of the headphone 1 is at
an angle located on the front side of the pinnae of the user 100, and realizes the case where a
sound wave arrives from the front direction. Further, in the case of FIG. 5, the driver 2 of the
headphone 1 is at an angle located on the rear side of the pinna of the user 100, and realizes the
case where a sound wave arrives from the rear direction.
[0031]
Therefore, the user 100 can easily change the acoustic characteristics of the headphone 1 and
the reproduction sound quality according to the preference of the user 100, including the sound
field feeling in which the arrival directions of the sound waves are different. When the user 100
pushes a predetermined position of the baffle 3 to push it around, the baffle 3 rotates relative to
the housing 4 to engage the steel ball 31 with the locking hole 41, Alternatively, since the steel
ball 32 and the locking hole 42 are disengaged, the relative angle θ can be changed within a
predetermined range. The headphone 1 allows the user 100 to change the angle θ of the baffle
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10
3 with respect to the housing 4 by the user changing to which locking hole 41 or 42 the steel
ball 31 or 32 of the locking mechanism is engaged. The attachment angle of the driver 2 with
respect to the ear can be changed so as to be reproducible within a predetermined range to
enable good sound reproduction.
[0032]
In this locking mechanism, when one steel ball 31 engages with the locking hole 41 of the
corresponding housing 4, the other steel ball 32 does not engage with the corresponding locking
hole 42, and conversely, the steel ball 32 The other steel ball 31 does not engage with the
corresponding locking hole 41 when the 32 engages with the locking hole 42 of the
corresponding housing 4. The row of the plurality of locking holes 41 corresponding to the steel
ball 31 and the row of the plurality of locking holes 42 corresponding to the steel ball 32 have
predetermined angular intervals of 10 ° on the same concentric circle 40. However, they are not
symmetrical with respect to the Y axis. For example, the row of the plurality of locking holes 41
and the row of the locking holes 42 have a positional relationship that is shifted by 5 ° in the
rotational angular direction. The locking hole 41 closest to the X axis is provided at the position
of the angle α = 0 °, and the other locking hole 42 closest to the X axis is provided at the
position of the angle β = 5 °. .
[0033]
Therefore, the locking holes 41 and 42 are arranged such that the relative angle θ of the baffle
3 with respect to the housing 4 can be set at intervals of 5 ° between θ = −55 ° to + 60 °. .
When relatively rotating at 5 ° which is an angle of 1/2 of the predetermined angle interval 10
°, either one of the steel ball 31 or the steel ball 32 must be in either the locking hole 41 or the
locking hole 42 respectively Will be engaged. The locking mechanism of the baffle 3 and the
housing 4 differs from each other in the row of the locking holes 41 to which the steel balls 31
correspond and the row of the locking holes 42 to which the steel balls 32 correspond as in this
embodiment. With such an arrangement, the mounting angle of the driver 2 with respect to the
user's ear can be set so as to be easily changed by the user in finer angle steps. Even if the
diameter of the steel balls 31 and 32 of the locking mechanism is somewhat large, the angular
step of the mounting angle of the driver 2 should be finely divided into substantially 1/2 times 5.
Can. Of course, if this locking mechanism further includes another steel ball and a corresponding
row of locking holes, the mounting angle of the driver 2 with respect to the user's 100 ear can be
adjusted in a finer angle step. You can do so.
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[0034]
In the above embodiment, when changing the relative angle θ of the baffle 3 with respect to the
housing 4, the user 100 applies a force to a predetermined position of the baffle 3 and pushes it
around. A knob connected to the rotation shaft may be provided to rotate the baffle 3 to which
the driver 2 is attached. Since the user 100 can easily change the mounting angle of the driver 2
with respect to the ear, good sound reproduction under various conditions can be enabled.
[0035]
The headphone 1 of this embodiment is an open type headphone having a housing 4 having a
vent, but in the case where the housing 4 is a closed type having no vent, ventilation between the
baffle 3 and the housing 4 is It should be sealed as it is disconnected. Another housing for sealing
the air on the back side of the driver unit 2 may be provided to be connected to the baffle 3 so as
to rotate inside the housing 4.
[0036]
The headphones of the present invention are not limited to those applied to headphones
corresponding to stereo signals as in the above embodiment, and in the case of monaural signals,
the housing 4 corresponding to one of the left and right ears is at least The present invention is
also applicable to one headphone or earphone.
[0037]
1 ヘッドフォン 2 ドライバーユニット 3 バッフル 4 ハウジング 5 イヤーパッド 6 ヘッドバ
ンド
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12
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