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JP2007221261

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This translation is machine-generated. It cannot be guaranteed that it is intelligible, accurate,
complete, reliable or fit for specific purposes. Critical decisions, such as commercially relevant or
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DESCRIPTION JP2007221261
To provide a mounting structure of a mounting member capable of suppressing the number of
parts and suppressing the number of steps required for mounting an electronic device, and a
speaker unit provided with the mounting structure. A speaker unit (100) includes a mounting
structure (1) of a mounting member and a speaker (2). In the mounting structure 1 of the
mounting member, the cover member 3 to which the speaker 2 is mounted is mounted at the
mounting location 4a. The mounting structure 1 of the mounting member includes the cover
member 3 to which the speaker 2 is mounted, the fixing member 7, the recessed groove 8, and
the locking arm 9. The cover member 3 is formed in a cylindrical shape whose inner
circumferential surface 10 is circular in cross section. The fixing member 7 is attached to the
attachment point 4a. The recessed groove 8 is recessed from the inner circumferential surface
10 and extends in the circumferential direction of the inner circumferential surface 10. The
locking arm 9 is spaced apart in the circumferential direction of the fixing member 7 and stands
upright from the fixing member 7. The locking arm 9 locks in the recessed groove 8. The locking
projection 13 of the locking arm 9 is movable in the recessed groove 8. [Selected figure] Figure 3
Mounting structure of mounting member and speaker unit
[0001]
The present invention relates to, for example, a mounting structure of a mounting member for
mounting an electronic device such as a speaker on a structure such as a mobile body such as an
automobile or a ship, and a speaker unit including the mounting structure of the mounting
member.
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[0002]
2. Description of the Related Art Conventionally, a car or a ship as a moving body is provided
with a speaker unit for outputting various voice information.
The speaker unit includes a speaker as an electronic device, and a mounting structure (see, for
example, Patent Document 1) for mounting the speaker on the above-described structure.
[0003]
In the mounting structure shown in Patent Document 1, a frame is interposed between a
mounting member mounted on a wall surface of the above-mentioned building, a frame provided
on a speaker, and the mounting member, and the speaker is rotatable. And a holding member. In
the mounting structure shown in Patent Document 1, the frame is supported by supporting the
speaker in a state in which the axis of the speaker and the direction orthogonal to the wall
surface of the building are mutually inclined, and the speaker is rotated. The direction of the
speaker can be changed. Unexamined-Japanese-Patent No. 2001-298787
[0004]
The above-described conventional mounting structure includes a frame provided on the speaker,
the mounting member described above, a holding member, and a fixing member such as a screw
for fixing them to one another. Thus, the conventional attachment structure tends to increase the
number of parts in order to be able to change the orientation of the speaker. Furthermore, in the
conventional mounting structure, the number of parts increases, and the required man-hours for
mounting the speaker as the electronic device to a building or the like (man-hours for assembling
the mounting structure) tends to increase.
[0005]
Therefore, an object of the present invention is, for example, a mounting structure of a mounting
member capable of suppressing the number of parts and suppressing the number of steps
required for mounting an electronic device, and a speaker unit provided with the mounting
structure of the mounting member To provide.
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[0006]
In order to solve the above problems and achieve the object, the mounting structure of the
mounting member of the present invention according to claim 1 is an object to which an
electronic device is attached and whose inner peripheral surface is formed in a cylindrical shape
having a circular cross section. A mounting member, a lock receiving portion provided on an
inner circumferential surface of the mounting member and extending in a circumferential
direction of the mounting member, a fixing member mounted to a mounting location to which
the mounting member is mounted, and the fixing It is provided upright from a member and is
capable of being locked with the lock receiving portion, and provided with a plurality of locking
portions provided at intervals from each other in the circumferential direction of the mounted
member. .
[0007]
Hereinafter, the mounting structure of the mounting member and the speaker unit according to
the embodiment of the present invention will be described.
In the mounting structure of the mounting member according to the embodiment of the present
invention, the mounting member to which the electronic device is mounted is formed in a tubular
shape, and the locking receiver extended in the circumferential direction on the inner peripheral
surface of the mounting member The electronic device can be attached with two members, ie, the
mounting member and the fixing member, by providing the lock portion on the fixing member to
be attached to the mounting portion of the mounting member and providing the locking portion
to the locking receiving portion. It is possible.
Further, by rotating the locking portion with respect to the locking receiving portion, the
mounting member can be rotated relative to the fixing member, and the orientation of the
electronic device can be easily changed. By doing this, it is possible to suppress the number of
parts and the required number of man-hours for attaching the electronic device.
[0008]
The locking portions may be arranged at equal intervals in the circumferential direction of the
mounting member. In this case, the fixing points of the mounting member to the fixing member
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are arranged at equal intervals in the circumferential direction, and the mounting member can be
stably attached to the fixing member.
[0009]
The lock receiving portion may be provided on the entire periphery of the mounting member. In
this case, the mounting member can be rotated 360 degrees or more with respect to the fixing
member or mounting point, and the electronic device can be positioned in any direction.
[0010]
The engagement receiving portion may be a recessed groove, and the inner surface of the
recessed groove may be provided with asperities. In this case, when the mounting member is
rotated, a click feeling is generated when the locking portion passes over the convex portion of
the concave groove. For this reason, when the locking portion is positioned in the recess of the
recessed groove, this state is maintained, and it is possible to prevent the direction of the
mounting member once positioned from being unexpectedly changed. Therefore, it is possible to
prevent the orientation of the electronic device once positioned from being unintentionally
changed.
[0011]
The concave groove may be inclined with respect to the surface of the main body portion of the
fixing member. In this case, the electronic device can easily face the user facing the surface of the
main body, that is, the attachment point, regardless of the orientation of the mounting member.
[0012]
The electronic device may be a speaker, and the recessed unit may be a speaker unit disposed to
be inclined with respect to a direction orthogonal to the axial center of the speaker. In this case,
by rotating the mounting member, the direction of the speaker can be easily changed, and by
changing the direction of the speaker, the user can position the speaker in a direction in which
an appropriate sound effect can be obtained. .
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[0013]
One embodiment of the present invention will be described with reference to FIGS. As shown in
FIG. 1, the speaker unit 100 includes an attachment structure (hereinafter simply referred to as
an attachment structure) 1 of a mounting member and a speaker 2. The mounting structure 1 is
a structure for mounting a cover member 3 as a mounting member to which a speaker 2 as an
electronic device shown in FIG. 1 is mounted to a dashboard 4 as a structure of a passenger
compartment of an automobile as a moving body.
[0014]
The dashboard 4 is made of a synthetic resin, and as shown in FIG. 2, the holes 6 pass through
the attachment points 4 a to which the cover member 3 described above is attached. The planar
shape of the hole 6 is circular. On the back side of the hole 6, a nut 5 (shown in FIG. 3) is
attached. The nut 5 is disposed coaxially with the hole 6 described above.
[0015]
The speaker 2 includes a well-known magnetic circuit unit and a vibration unit having a
diaphragm vibrated by the magnetic circuit unit. The components that constitute the magnetic
circuit unit and the vibration unit are formed in a cylindrical shape, a cylindrical shape, or an
annular shape, and are arranged coaxially with each other. The axial centers of these components
are hereinafter referred to as the axial centers P of the speakers 2 (shown by dotted lines in FIG.
1 and the like). The axis P is the direction of the speaker 2 in the present invention. In the
speaker 2, a voice current is supplied to a voice coil attached to a diaphragm, and the diaphragm
is vibrated by the voice current and the magnetic circuit unit to generate a sound according to
the above-described voice current.
[0016]
The mounting structure 1 is, as shown in FIGS. 2 and 3, the engagement of the cover member 3
described above, the fixing member 7, the recessed groove 8 (shown in FIG. 3) as the locking
receiving portion, and the locking portion. And a stop arm 9.
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[0017]
The cover member 3 is made of synthetic resin.
As shown in FIG. 4, the cover member 3 is formed in a cylindrical shape having a circular crosssectional shape of the inner peripheral surface 10. The cover member 3 is formed in a frustoconical shape (conical shape). The cover member 3 accommodates (attaches) the speaker in the
end portion on the small diameter side in such a manner that the above-described diaphragm is
exposed to the outside. In addition, the cover member 3 has the speaker 2 attached in a state in
which the axial center Q of the inner circumferential surface 10 (an alternate long and short dash
line in FIG. 1) and the axial center P of the speaker 2 intersect with each other.
[0018]
The fixing member 7 is formed in an annular shape. The fixing member 7 passes a screw 11
screwed to the nut 5 inside. The fixing member 7 is superimposed on the attachment point 4a
described above, and the screw 11 passing through the inside is screwed into the nut 5 and
attached to the dashboard 4 described above.
[0019]
The recessed groove 8 is formed to be concave from the inner peripheral surface 10 of the cover
member 3 and extends along the circumferential direction of the inner peripheral surface 10 of
the cover member 3. The recessed groove 8 is provided over the entire circumference of the
inner peripheral surface 10 of the cover member 3 as shown in FIG. 4. The recessed groove 8 is
formed so as to have a constant cross-sectional shape over the entire circumference of the inner
peripheral surface 10 of the cover member 3. The recessed groove 8 extends in a direction
orthogonal to the axis Q described above, as shown in FIG. For this reason, the recessed groove 8
intersects (is inclined) with respect to a direction S (shown by a two-dot chain line in FIG. 3)
orthogonal to the axial center P of the speaker 2.
[0020]
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The locking arm 9 is provided at the outer edge of the fixing member 7. The locking arms 9 are
arranged at equal intervals in the circumferential direction of the fixing member 7 and the inner
peripheral surface 10 of the cover member 3. Three locking arms 9 are provided in the
illustrated example. The locking arm 9 includes a standing arm 12 and a locking protrusion 13.
[0021]
The standing arm 12 is formed in a columnar shape standing from the outer edge of the fixing
member 7. That is, the locking arm 9 is erected from the outer edge of the fixing member 7. The
projecting lengths of the standing arm 12 from the fixing member 7 are equal to one another.
That is, the lengths of the locking arms 9 are equal to one another. The standing arm 12 is
elastically deformable. The locking projection 13 is provided at the end of the standing arm 12
away from the fixing member 7, and from the end of the standing arm 12 to the outer peripheral
direction of the fixing member 7, that is, the inner circumferential surface 10 of the cover
member 3. Are convexly formed toward the
[0022]
After the locking projections 13 abut the inner peripheral surface 10 of the cover member 3, the
locking arms 9 described above are elastically deformed in a direction in which the locking
projections 13 of the plurality of locking arms 9 approach each other. Do. Thereafter, when the
locking projection 13 is positioned in the recessed groove 8, the locking arm 9 returns to the
non-elastically deformed neutral state by the elastic restoring force. Then, as shown in FIG. 5, the
locking arm 9 is locked in the recessed groove 8 by the locking convex portion 13 being
positioned in the recessed groove 8.
[0023]
Further, when the locking arm 9 locks in the recessed groove 8, the locking convex portion 13
can move in the recessed groove 8. That is, the locking projection 13 moves in the recessed
groove 8 along the longitudinal direction of the recessed groove 8.
[0024]
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The mounting structure 1 described above mounts the cover member 3 or the speaker 2 to the
fixing member 7 or the dashboard 4 by the locking arm 9 being locked in the recessed groove 8.
Then, in the mounting structure 1, the cover member 3, that is, the speaker 2 is rotated around
the axis Q by the movement of the locking convex portion 13 in the recessed groove 8. Since the
axial center P of the speaker 2 and the axial center Q of the inner circumferential surface 10 of
the cover member 3 intersect with each other, the mounting structure 1 rotates the cover
member 3 around the axial center Q to make the speaker 2 Change the direction of As described
above, the mounting structure 1 allows movement of the locking convex portion 13 in the
recessed groove 8 and allows rotation of the cover member 3 around the axis Q and allows
change in the direction of the speaker 2. ing.
[0025]
According to the present embodiment, the cover member 3 is formed in a cylindrical shape, the
recessed groove 8 extending in the circumferential direction is provided on the inner peripheral
surface 10 of the cover member 3, and the recessed groove 8 is erected from the fixing member
7. There is provided a locking arm 9 for locking to. Thus, the two members of the cover member
3 and the fixing member 7 make it possible to attach the speaker 2 to the dashboard 4.
[0026]
Further, since the locking projection 13 of the locking arm 9 is movable in the recessed groove 8
and the cover member 3 is rotatable relative to the fixing member 7, the direction of the speaker
2 can be easily changed.
[0027]
Therefore, the mounting structure 1 makes it possible to suppress the number of parts and the
required number of man-hours for mounting the speaker 2 while making it possible to easily
change the direction of the speaker 2.
[0028]
In addition, the locking arms 9 are arranged at equal intervals in the circumferential direction of
the inner circumferential surface 10 of the cover member 3 and the fixing member 7.
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For this reason, the fixing | fixed location with respect to the fixing member 7 of the cover
member 3 will be arrange | positioned at equal intervals in the circumferential direction of this
cover member 3 or the fixing member 7, and the cover member 3 is stabilized with respect to the
fixing member 7. Can be attached.
[0029]
The recessed groove 8 is also provided on the entire circumference of the inner peripheral
surface 10 of the cover member 3 as a locking receiving portion.
For this reason, the cover member 3 can be rotated 360 degrees or more with respect to the
fixing member 7, that is, the attachment portion 4 a of the dashboard 4. Therefore, the speaker 2
can be positioned in any direction.
[0030]
Since the recessed groove 8 is disposed to be inclined with respect to the direction orthogonal to
the axial center P of the speaker 2, the axial center P of the speaker 2 and the axial center Q
forming the rotation center of the cover member 3 intersect with each other. . Therefore, by
rotating the cover member 3, the direction of the speaker 2 can be easily changed, and by
changing the direction of the speaker 2, the user can position the speaker 2 in a direction in
which an appropriate acoustic effect can be obtained. be able to.
[0031]
In the embodiment described above, the cross-sectional shape of the recessed groove 8 is formed
uniformly over the entire circumference of the inner peripheral surface 10 of the cover member
3, that is, the entire length of the recessed groove 8. However, in the present invention, as shown
in FIGS. 6 and 7, the unevenness 14 may be formed on the inner surface of the recessed groove
8. In FIGS. 6 and 7, the same parts as those of the embodiment described above are designated
by the same reference numerals and the description thereof will be omitted.
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[0032]
In the case shown in FIG. 6, the above-described asperity 14 is provided on each of a pair of
opposing inner side surfaces 8a, 8a as the inner surface of the recessed groove 8. As shown in
FIG. In the unevenness 14, the convex portion 15 convex toward the inside of the concave groove
8 and the concave portion 16 concave from the inner surface of the concave groove 8 are in the
longitudinal direction of the concave groove 8, that is, the periphery of the inner peripheral
surface 10 of the cover member 3. It is alternately provided in the direction and formed.
Moreover, as for the unevenness | corrugation 14, convex part 15 comrades mutually oppose
and recessed part 16 comrades are mutually opposed. In the case shown in FIG. 6, the concave
and convex portions 14 provide a portion where the width of the recessed groove 8 is narrow
and a portion where the width is wide.
[0033]
In the case shown in FIG. 7, the above-described unevenness 14 is provided on the bottom
surface 8 b opposite to the inside of the cover member 3 as the inner surface of the recessed
groove 8. The unevenness 14 is, of course, a convex portion 15 convex toward the inside of the
cover member 3 and a concave portion 16 concave from the bottom surface 8 b of the concave
groove 8 in the longitudinal direction of the concave groove 8, ie the inner peripheral surface of
the cover member 3 They are alternately provided in the circumferential direction of 10 and
formed. In the case shown in FIG. 7, the concave and convex portions 14 provide a portion where
the depth of the recessed groove 8 is shallow and a portion where the depth is deep.
[0034]
In the case shown in FIGS. 6 and 7, when the cover member 3, that is, the speaker 2 is rotated,
when the locking convex portion 13 moves in the recessed groove 8, the locking convex portion
13 rides on the convex portion 15. When the standing arm 12 is elastically deformed and the
locking projection 13 is positioned in the recess 16, the standing arm 12 returns to the neutral
state where it is not elastically deformed. Thus, in the case shown in FIGS. 6 and 7, when the
cover member 3 or the speaker 2 is rotated, the standing arm 12 of the locking arm 9 elastically
deforms or returns to the neutral state, giving a click feeling to the user. Be done. Of course,
when the standing arm 12 of the locking arm 9 is elastically deformed, the cover member 3
becomes difficult to rotate, and when the standing arm 12 of the locking arm 9 returns to the
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neutral position, the cover member 3 becomes easy to rotate.
[0035]
In the case shown in FIG. 6 and FIG. 7, since the lock receiving portion is a recessed groove 8 and
the unevenness 14 is provided on the inner surface of the recessed groove 8, when the cover
member 3 is rotated, the locking arm 9 is locked When the convex portion 13 passes over the
convex portion 15 of the concave groove 8, a click feeling is generated. Therefore, when the
locking convex portion 13 of the locking arm 9 is positioned in the concave portion 16 of the
concave groove 8, the locking convex portion 13 interferes with the convex portion 15 of the
concave groove 8, and this state is maintained. As a result, the direction of the cover member 3
once positioned can be prevented from being unexpectedly changed. Therefore, it is possible to
prevent the direction of the speaker 2 once positioned from being unintentionally changed.
[0036]
Further, in the embodiment described above, the lengths of the plurality of locking arms 9 are
equal. However, according to the present invention, as shown in FIG. 8, when the lengths of the
locking arms 9 are made different from each other and the locking projections 13 are locked in
the recessed grooves 8, the recessed grooves 8 are formed on the surface of the fixing member 7.
You may lean against it. That is, the rotation center R (direction orthogonal to the concave groove
8) of the cover member 3, that is, the speaker 2 may be inclined with respect to the axial center
Q of the inner peripheral surface 10 of the cover member 3 described above. As described above,
in the present invention, when the locking arm 9 is locked in the recessed groove 8, the recessed
groove 8 may be inclined with respect to the surface of the fixing member 7, that is, the
attachment portion 4 a of the dashboard 4.
[0037]
In this case, regardless of the orientation of the cover member 3, the speaker 2 can easily face
the user facing the surface of the fixing member 7, that is, the attachment point 4a. Therefore,
better acoustic characteristics can be obtained.
[0038]
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In the embodiment described above, the recessed groove 8 or the engagement receiving portion
is provided on the entire circumference of the inner peripheral surface 10 of the cover member
3. However, in the present invention, the recessed groove 8, that is, the lock receiving portion
may not be provided on the entire circumference of the inner peripheral surface 10 of the cover
member 3.
[0039]
In the embodiment described above, the locking receiving portion is a recessed groove 8 and the
locking portion is a locking arm 9 provided with a locking protrusion 13 at the tip. However, in
the present invention, the locking receiving portion may be a protrusion projecting from the
inner circumferential surface 10 of the cover member 3 or the locking portion may be a locking
arm 9 provided with a recess at its tip. In short, in the present invention, the lock receiving
portion and the locking portion may have any configuration.
[0040]
In the present invention, the locking portions do not have to be arranged at equal intervals in the
circumferential direction of the inner circumferential surface 10 of the cover member 3. In short,
in the present invention, the plurality of locking portions may be arranged at intervals in the
circumferential direction of the inner peripheral surface 10 of the cover member 3.
[0041]
In the embodiment described above, the dashboard 4 of a car is shown as a structure, but in the
present invention, the speaker 2 may be attached to various structures other than the dashboard
4 of a car. Of course, in the present invention, the speaker 2 may be attached to various
structures without being limited to automobiles. Furthermore, in the present invention, not only
the speaker 2 but also various electronic devices may be attached.
[0042]
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According to the embodiment described above, the following mounting structure 1 is obtained.
(Supplementary Note) The speaker 2 is attached, and the inner circumferential surface 10 is
provided on the inner circumferential surface 10 of the cover member 3 and in the
circumferential direction of the cover member 3 and the inner circumferential surface 10 of the
cover member 3. An extending concave groove 8, a fixing member 7 attached to an attachment
location 4a to which the cover member 3 is attached, an erected member from the fixing member
7, which can be engaged with the concave groove 8, and the cover member A plurality of locking
arms 9 provided at intervals in the circumferential direction of 3; and a mounting structure 1 of a
mounting member.
[0043]
According to the remarks, the cover member 3 is formed in a cylindrical shape, the recessed
groove 8 extending in the circumferential direction is provided on the inner peripheral surface
10 of the cover member 3, and is erected from the fixing member 7 and engaged with the
recessed groove 8. A locking arm 9 is provided for stopping. Thus, with the two members of the
cover member 3 and the fixing member 7, the speaker 2 can be attached to the attachment point
4a.
[0044]
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.
[0045]
It is a perspective view which shows the attachment structure concerning one Example of this
invention. It is a disassembled perspective view of the attachment structure shown by FIG. It is
the side view which showed the attachment structure shown by FIG. 1 in partial cross section. It
is sectional drawing in alignment with the IV-IV line in FIG. It is sectional drawing which expands
and shows the principal part of the attachment structure shown by FIG. It is a side view which
shows the modification of the attachment structure shown by FIG. 3 in a partial cross section.
FIG. 5 is a cross-sectional view of another modification of the attachment structure shown in FIG.
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4; FIG. 14 is a side view showing, in partial cross section, still another modified example of the
attachment structure shown in FIG. 3.
Explanation of sign
[0046]
1 Mounting Structure of Attached Member 2 Speaker (Electronic Device) 3 Cover Member
(Attached Member) 4a Attached Part 7 Fixing Member 8 Concave Groove (Lock Receiving Part)
8a Inner Side (Inside) 8b Bottom (Inside) 9 Locked Arm (locking portion) 10 inner
circumferential surface 14 unevenness 15 convex portion 16 concave portion 100 speaker unit P
shaft core (direction of electronic device) S direction perpendicular to the shaft core of the
speaker
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