close

Вход

Забыли?

вход по аккаунту

?

DESCRIPTION JP2016096369

код для вставкиСкачать
Patent Translate
Powered by EPO and Google
Notice
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
financial decisions, should not be based on machine-translation output.
DESCRIPTION JP2016096369
Abstract: To provide a windscreen that is inexpensive and easy to manufacture and that can be
firmly attached to a mounting object. SOLUTION: A windscreen main body (1) having a through
hole (1d), a base (2a) which is inserted in the through hole (1d) so as to be inserted and removed
freely, and an extension of the base (2a) from both ends of the base (2a) And a holder (2) having
a pair of arms (2b, 2c) extending in a direction intersecting the direction. [Selected figure] Figure
5
Windscreen and windscreen mounting structure
[0001]
The present invention relates to a windscreen for a microphone and its mounting structure.
[0002]
In order to reduce wind noise in microphone sound collection, it is generally carried out to mount
a wind screen formed of a sponge-like elastic material so as to cover the sound collection hole of
the microphone.
Specifically, the windscreen is detachably mounted on the microphone housing or the housing of
the device containing the microphone by using a resilient repulsive force thereof.
18-04-2019
1
[0003]
However, the elastic repulsive force of the wind screen itself is relatively weak, and it may be
easily detached by application of an external force. Therefore, a structure capable of firmly
mounting a wind screen has been proposed, and an example is described in Patent Document 1.
The windscreen described in Patent Document 1 has a resin locking ring for locking to a
mounting member. The resin lock ring is integrated with the sponge-like windscreen main body
by adhesion.
[0004]
JP 2000-217177 A
[0005]
The windscreen described in Patent Document 1 requires a bonding process using an adhesive to
integrate the resin locking ring with the windscreen main body, and thus the manufacturing cost
is increased.
In addition, the bonding operation is not necessarily easy because it is necessary to take account
of alignment of members, erroneous application of an adhesive, and the like.
[0006]
Therefore, the problem to be solved by the present invention is to provide a windscreen and a
windscreen attachment structure that is inexpensive and easy to manufacture and can be firmly
attached to a mounting object.
[0007]
In order to solve the above-mentioned subject, the present invention has the following
composition.
1) A windscreen main body having a through hole, a holder having a base inserted in the through
18-04-2019
2
hole so as to be freely inserted and removed, and a pair of arms extending from both ends of the
base in a direction intersecting with the extending direction of the base; It is a wind screen
equipped with 2) A mounting structure of a windscreen for mounting the windscreen on a
mounting object accommodating a microphone unit, wherein the windscreen is inserted through
the windscreen main body having a through hole and the through hole so as to be insertable and
removable. A holder and a holder having a pair of arms extending from both ends of the base in a
direction intersecting with the extending direction of the base, and the mounted body passes an
external sound picked up by the microphone unit And a housing having a first mounting hole and
a second mounting hole into which the pair of arm portions can respectively enter, the pair of
arm portions corresponding to the first and second mounting holes And a removal restricting
portion for restricting removal of the holder by engagement at a use position in which the holder
is moved to a predetermined distance, and the holder is the windscreen at the use position. A
window screen mounting structure is characterized in that the main body is urged in close
contact with the casing.
[0008]
ADVANTAGE OF THE INVENTION According to this invention, manufacture is cheap and easy,
and the effect that it can mount | wear with a to-be-mounted body firmly is acquired.
[0009]
FIG. 1 is a partial perspective view for explaining a mounting state of a windscreen 51, which is
an example of a windscreen according to an embodiment of the present invention, to an
electronic device 52. As shown in FIG.
FIG. 2 is a partial perspective view showing a state where the windscreen 51 is removed from the
electronic device 52 shown in FIG. FIG. 3 is a perspective view for explaining the screen main
body 1 in the wind screen 51. As shown in FIG. FIG. 4 is a perspective view for explaining the
holder 2 in the wind screen 51. As shown in FIG. FIG. 5 is a perspective view for explaining the
wind screen 51. As shown in FIG. FIG. 6 is a partial longitudinal cross-sectional view for
explaining the mounting state of the wind screen 51 on the electronic device 52. As shown in
FIG. FIG. 7 is a partial perspective view for explaining the method of removing the windscreen 51
from the electronic device 52. As shown in FIG.
[0010]
18-04-2019
3
A windscreen 51 and its mounting structure TK, which is an example of a windscreen and a
mounting structure of the windscreen according to an embodiment of the present invention, will
be described with reference to FIGS. For convenience of explanation, the directions of left, right,
up, down, front and back are defined by the directions of the arrows in FIG.
[0011]
As shown in FIG. 1, the wind screen 51 is attached to the housing 52 a of the electronic device
52. The electronic device 52 is, for example, a prismatic IC recorder or a microphone with a PTT
(Push to talk) switch, which incorporates the microphone unit M in a housing 52a, and the upper
side is shown in FIG. The wind screen 51 has a wind screen main body 1 (hereinafter, referred to
as a screen main body 1) formed of a sponge-like elastic material, and a holder 2 formed of a
resin material and inserted into the screen main body 1. The sponge-like elastic material is, for
example, foamed polyurethane. The resin material is, for example, POM (polyacetal) resin.
[0012]
FIG. 2 is a view showing only the case 52a in which the wind screen 51 is removed from FIG. As
shown in FIG. 2, the upper side wall 52 a 1 of the housing 52 a is formed to have a
circumferential surface curved in a U-shape in which the upper side is convex. At the center in
the left-right direction of the upper side wall 52a1, a plurality of (three in this example) recesses
52b extending in the left-right direction are provided in parallel in the front-rear direction. In
each recess 52b, a sound hole 52c, which is a through hole communicating the inside and
outside of the housing 52a, is formed. The sound hole 52c is provided at a position
corresponding to the sound collection surface Ma of the microphone unit M housed inside the
housing 52a. The range in which the plurality of sound holes 52c are formed is hereinafter
referred to as a sound hole formation portion 52d.
[0013]
A part of the sound that has reached the electronic device 52 from the outside passes through
the plurality of sound holes 52c of the sound hole forming unit 52d and enters the sound
collection surface Ma of the microphone unit M, whereby the electric signal is generated by the
microphone unit M. It is converted.
18-04-2019
4
[0014]
A left mounting hole 52e1 and a right mounting hole 52e2 are formed in the housing 52a as
holes extending downward and to the left and right of the sound hole forming portion 52d in the
upper side wall 52a1 (see also FIG. 6).
The opening shapes of the left mounting hole 52e1 and the right mounting hole 52e2 are long in
the front-rear direction, and correspond to the cross-sectional shapes of a left arm 2b and a right
arm 2c (see FIG. 4) of the holder 2 described later. In the left attachment hole 52e1 and the right
attachment hole 52e2, a left arm 2b and a right arm 2c, which will be described later, can be
approached by a predetermined distance. In the right side wall 52a3 of the housing 52a, a
release hole 52f, which is a through hole, is provided as an opening.
[0015]
As shown in FIG. 3, the screen main body 1 has a substantially trapezoidal shape whose upper
side is an upper bottom (upper surface J) with a cross section (upper and lower front and rear
extending surface) shape, and both end sides in the longitudinal direction (left and right
direction) It is formed as an arc-shaped body curving downward. The bottom surface 1 a which is
the lower surface of the screen main body 1 is formed in a substantially circumferential shape,
and the curvature degree thereof corresponds to the curvature degree of the upper side wall 52 a
1 of the electronic device 52. The screen main body 1 has a through hole 1 d that is opened at
the left end surface 1 b and the right end surface 1 c and is curved along the bottom surface 1 a.
The cross-sectional shape of the through hole 1 d is a flat shape that is long in the front-rear
direction. Here, the opening height of the through hole 1 d in the cross-sectional shape is taken
as a distance Wa, and the distance in the front-rear direction is taken as a distance Da. The
through hole 1d is curved so that the distance ta with the bottom surface 1a is substantially
constant in the extension range between the left end surface 1b and the right end surface 1c. A
portion corresponding to the through hole 1 d in the bottom surface 1 a (a portion having a
thickness ta) is referred to as a hole wall portion 1 a 1.
[0016]
As shown in FIG. 4, the holder 2 extends in the left-right direction, and extends in the shape of a
strip downward from the base 2 a whose both left and right direction end sides are curved
18-04-2019
5
downward and the left end 2 a 1 of the base 2 a It has a left arm portion 2b and a right arm
portion 2c extending in a strip shape downward from the right end portion 2a2 of the base
portion 2a. The left arm 2b and the right arm 2c, which are a pair of arms, extend in a direction
intersecting the extending direction of the base 2a. For example, as shown in FIG. 4, they extend
in the same direction, and are formed to face each other and to be generally parallel.
[0017]
The distance Db in the front-rear direction, which is the width of the base 2a, is set to be equal to
or slightly larger than the distance Da of the through hole 1d of the screen main body 1. The
distance Wb, which is the thickness of the base 2a, is set to be equal to or slightly larger than the
distance Wa, which is the opening height of the through hole 1d of the screen main body 1.
[0018]
The curved shape of the base 2 a is formed to correspond to the curved shape of the upper side
wall 52 a 1 of the electronic device 52. That is, it is formed corresponding to the curved shape of
the through hole 1 d of the screen main body 1. The extension length of the base 2 a in the leftright direction is set to be longer than the extension length of the through hole 1 d of the screen
main body 1 in the left-right direction. A long hole 2a3 is formed in the central portion of the
base 2a as a long through hole in the left-right direction. The position and the shape of the long
hole 2a3 correspond to the position of the sound hole forming portion 52d when the wind screen
51 is attached to the electronic device 52, and include the sound hole forming portion 52d.
[0019]
The right arm 2c is longer than the left arm 2b. The front and rear corners of the tip of the right
arm 2c and the left arm 2b are rounded (R in FIG. 4). At a portion near the base 2a of the inner
surface 2b1 of the left arm 2b and the inner surface 2c1 of the right arm 2c, a protrusion 2b2
and a protrusion 2c2 (see also FIG. 6) projecting inward toward the other arm are formed. ing.
[0020]
18-04-2019
6
On the tip side of the outer surface 2c3 of the right arm 2c, there is formed an engaging portion
2c4 that has a substantially rectangular parallelepiped shape long in the front-rear direction and
protrudes outward. The side surface of the engaging portion 2c4 on the side far from the base 2a
is an inclined surface 2c4a that gradually increases from the outer surface 2c3 as it goes from
the tip end of the right arm 2c to the base 2a. Further, the side surface on the side closer to the
base 2a in the engaging portion 2c4 is a standing wall surface 2c4b that stands substantially
orthogonally from the outer surface 2c3. The left arm 2b and the right arm 2c are configured to
bend in the left-right direction (see the arrow Ya in FIG. 4) with respect to the base 2a.
[0021]
The wind screen 51 is an assembly in which the holder 2 is attached to the screen main body 1,
and the appearance is shown in FIG. The holder 2 is attached to the screen main body 1 by, for
example, inserting the left arm 2b of the holder 2 from the right end face 1c side of the through
hole 1d in the screen main body 1 and then putting the base 2a of the holder 2 in the through
hole 1d. To do. Since the screen body 1 has a certain degree of elasticity, mounting in this
procedure is possible.
[0022]
As described above, since the cross-sectional shape of the through hole 1d and the crosssectional shape of the base 2a substantially match in size and shape, the screen body 1 is
attached to the base 2a with almost no gap on fitting. Be In addition, when the shape on the base
2a side is formed slightly larger than the opening shape of the through hole 1d, the windshield is
closely attached without a gap on fitting, so that the windshield effect is exhibited better. Further,
since the left arm 2b and the right arm 2c extend from the left and right ends of the base 2a, the
screen main body 1 is not unintentionally detached from the holder 2 unintentionally. That is, the
screen main body 1 can be attached to and detached from the holder 2 manually.
[0023]
In FIGS. 2 and 4, the opening shapes of the left mounting hole 52e1 and the right mounting hole
52e2 of the housing 52a are formed the same as or slightly larger than the cross sectional
shapes of the left arm 2b and the right arm 2c. Further, the spacing (pitch) between the left
mounting hole 52e1 and the right mounting hole 52e2 is set to be the same as the spacing
18-04-2019
7
(pitch) between the left arm 2b and the right arm 2c. Thereby, the left arm 2b and the right arm
2c can be simultaneously inserted downward from above into the left attachment hole 52e1 and
the right attachment hole 52e2 of the housing 52a, respectively.
[0024]
In the embodiment, since the right arm 2c is longer than the left arm 2b, the windscreen 51 is
first inserted into the right mounting hole 52e2 from the upper side of the housing 52a. And if it
pushes in as it is, the left arm part 2b will be naturally inserted in the left attachment hole 52e1.
When the right arm 2c enters into the right attachment hole 52e2 by a predetermined distance,
the right arm 2c is locked to the housing 52a by the engagement at the removal restricting
portion Ks. The removal restricting portion Ks is configured to include an engaging portion 2c4
and a projection 52g (see FIGS. 6 and 7 described later) which will be an engaged portion of the
engaging portion 2c4. When the locking position is reached, the mounting of the windscreen 51
is completed, and the windscreen 51 is in use. The longitudinal cross-sectional view for
demonstrating this use condition is FIG.
[0025]
FIG. 6 is a cross-sectional view taken along the line S6-S6 in FIG. 1 with the windscreen 51
attached to the housing 52a. As shown in FIG. 6, the right outer wall 52e4 of the right mounting
hole 52e2 is provided with a protrusion 52g projecting leftward on the back side (downward
side) separated by a predetermined distance from the opening position of the upper side wall
52a1. There is. The protrusion 52g is formed as a flat substantially rectangular parallelepiped
extending in the front-rear direction at the front-rear position in consideration of the locking
correspondence with the engagement portion 2c4. The side surface on the lower side of the
protrusion 52g is an upright wall surface 52g1 which stands substantially orthogonally from the
right outer wall surface 52e4, and the side surface on the upper side is an inclined surface 52g2
which becomes gradually higher from the upper side to the lower side.
[0026]
In the process of inserting the holder 2 into the housing 52a, the engaging portion 2c4 provided
on the right arm 2c of the holder 2 is bent to the inside of the right arm 2c by the sliding contact
of the inclined surface 2c 4a and the inclined surface 52g2. Get over section 52g. Due to this
18-04-2019
8
overturning, the bending is eliminated and the engaging portion 2c4 engages with the lower side
of the protrusion 52g. This engagement position is the use position of the wind screen 51 shown
in FIG. Thus, with the engagement between the engaging portion 2c4 and the protrusion 52g,
removal of the holder 2, that is, removal of the wind screen 51 is restricted, and the engaging
portion 2c4 and the protrusion 52g function as a removal restricting portion.
[0027]
In this use position, the base 2a of the holder 2 inserted into the through hole 1d of the screen
main body 1 crushes the hole wall portion 1a1 of the screen main body 1 with the upper side
wall 52a1 of the housing 52a. . As a result, the screen main body 1 is urged in close contact with
the periphery of the sound hole forming portion 52d1 in the upper side wall 52a1. Further, the
holder 2 is biased upward (in the direction in which the holder 2 is pulled out) by the elastic
repulsive force of the hole wall portion 1 a 1 of the screen main body 1. Due to this biasing force,
the standing wall surface 2c4b of the holder 2 always abuts on the standing wall surface 52g1 of
the protrusion 52g. As a result, the holder 2 is not unintentionally pulled upward from the
housing 52a naturally and is firmly attached to the housing 52a without displacement in the
vertical direction.
[0028]
Further, the projection 2b2 of the left arm 2b and the projection 2c2 of the right arm 2c
respectively abut the left inner wall 52e5 of the left mounting hole 52e1 and the right inner wall
52e6 of the right mounting hole 52e2 and are slightly biased inward. It is supposed to be. As a
result, the holder 2 is mounted on the housing 52a without any gap in the left-right direction
without shifting. Therefore, the windscreen 51 is more firmly attached to the housing 52a.
[0029]
As shown in FIG. 6, in the use position of the windscreen 51, the tip of the right arm 2c is located
beyond the release hole 52f. That is, part of the right arm 2c is exposed to the outside in the
release hole 52f. Thus, the windscreen 51 can be intentionally removed from the electronic
device 52 if necessary. Specifically, as shown in FIG. 7, the pin-like member PN is inserted into
the release hole 52f (arrow Yb), and the right arm 2c is pushed to bend inward (leftward) (arrow
Yc). When the engaging portion 2c4 moves to a position where the engaging portion 2c4 can get
18-04-2019
9
over the protrusion 52g by this deflection, the holder 2 is pulled upward (arrow Yd). As a result,
the left arm 2b and then the right arm 2c can be removed from the left mounting hole 52e1 and
then the right mounting hole 52e2, respectively, and the windscreen 51 can be removed from
the housing 52a.
[0030]
Since the screen main body 1 is not fixed to the holder 2, the screen main body 1 can be
removed for cleaning or replacement. In this case, the holder 2 may be removed from the
through hole 1 d of the screen main body 1.
[0031]
According to the wind screen 51 and the attachment structure TK described in detail above, the
wind screen 51 has the screen main body 1 and the holder 2 and the penetration of the shape
corresponding to the base 2 a of the holder 2 provided in the screen main body 1 A hole 1d is
provided, and the holder 2 is inserted into the through hole 1d to integrate the two members. In
particular, as described above, by setting the cross-sectional shape of the base portion 2a slightly
larger than the opening shape of the through hole 1d, both members are closely attached and
integrated without a gap. As a result, the adhesive and the bonding process become unnecessary,
and the increase in the manufacturing cost is suppressed and the cost becomes low. Further, in
the step of integrating the screen main body 1 and the holder 2, no consideration is required for
alignment between the screen main body 1 and the holder 2 and erroneous application of the
adhesive, etc., and the holder 2 is simply inserted into the through hole 1 d Because it is only, it is
very easy.
[0032]
In the attachment structure TK of the wind screen 51, the movement of the wind screen 51 in the
removal direction is restricted by the contact locking between the engaging portion 2c4 of the
right arm 2c and the projection 52g of the housing 52a which is a mounted body. . Thus, the
windscreen 51 is firmly attached to the housing 52a.
[0033]
18-04-2019
10
By compressing the hole wall portion 1a1 which is a part of the screen main body 1 at the use
position of the wind screen 51 mounted on the housing 52a, an elastic repulsive force in the
removal direction of the wind screen 51 is generated, and the removal restricting portion The
engagement portion 2c4 of the Ks and the projection 52g are always in contact with each other
and locked without a gap. As a result, the wind screen 51 is more firmly attached without causing
so-called rattling in the insertion / removal direction in the attachment. When the hole wall 1a1
covering the sound hole 52c of the housing 52a is compressed, a space surrounded by the sound
hole forming portion 52d, the hole wall 1a1, and the side surface 2a3a of the long hole 2a3 (see
FIG. 6). The degree of blockage of Va is improved. That is, the sound entering through the space
Va except the hole wall 1a1 is well blocked, and the sound entering the space Va becomes a
sound that has passed through the hole wall 1a1 of the screen main body 1. Thereby, even when
the wind hits the screen main body 1, the influence of the wind can be well suppressed and the
wind noise can be further reduced.
[0034]
The screen main body 1 is not fixed to the holder 2 and is integrated in a removable (removable)
manner. Thereby, when the screen main body 1 is replaced due to deterioration or damage due
to deterioration with time, washing is performed, color is changed for design purpose, etc., only
the screen main body 1 can be easily removed. it can. As a result, the holder 2 can be used for a
long time, thereby reducing the maintenance cost burden on the user.
[0035]
In the mounting structure TK, the detachment prevention of the wind screen 51 from the
housing 52a is left to the locking between the engaging portion 2c4 and the projection 52g, and
does not depend on the frictional force of the screen main body 1. As a result, unlike the prior
art, it is not necessary to have a projecting shape (e.g., an elongated cylindrical shape) having a
large contact area between the screen body 1 and the mounting body in order to increase the
frictional force. Therefore, the degree of freedom in external design of the object to be mounted
is high, and the appearance quality in a state where the wind screen 51 is removed can be
improved.
[0036]
18-04-2019
11
The embodiments of the present invention and the modifications thereof are not limited to the
above-described configuration, and may be modified without departing from the scope of the
present invention.
[0037]
The shape of the electronic device 52 is not limited.
For example, the upper side wall 52a1 of the housing 52a may not be curved but may be flat.
That is, the shape of the screen main body 1 is not limited. For example, the screen main body 1
may be a flat trapezoidal body or a rectangular solid having a low height. The electronic device
52 is not limited to the above-described IC recorder or a microphone with a PTT (Push to talk)
switch. What is necessary is to have a microphone unit and be able to pick up sound.
[0038]
The extension direction may be different between the left arm 2b and the right arm 2c, which are
a pair of arms. By setting the extending direction to a direction intersecting with the extending
direction of the base 2a, the screen main body 1 attached to the base 2a is not easily removed
naturally.
[0039]
The left arm 2b and the right arm 2c are not limited to those that bend in the left-right direction.
For example, any one of the arm portions may be a pair of arm portions extending downward in
a row in the front-rear direction, and a protrusion projecting forward or backward may be
provided at the distal end side portion. Then, the pair of arms may be flexible in directions to
approach or separate from each other in the front-rear direction, and may be configured to be
releasably engaged with the projections on the housing 52a side.
[0040]
Reference Signs List 1 screen main body 1a bottom surface 1a1 hole wall portion 1b left end
surface 1c right end surface 1d through hole 2 holder 2a base portion 2a1 left end portion 2a2
18-04-2019
12
right end portion 2a3 elongated hole 2b left arm 2b2 protrusion 2c right arm 2c1 inner surface
2c2 projection, 2c3 outer surface, 2c4 engaging portion 2c4a inclined surface, 2c4b upright wall
surface 51 wind screen 52 electronic device 52a case, 52a1 upper side wall, 52a3 right side wall
52b recessed portion 52c sound hole 52d sound hole forming portion 52e1 left mounting hole ,
52e2 right mounting hole 52e4 right outer wall surface, 52e5 left inner wall surface, 52e6 right
inner wall surface 52g protrusion, 52g1 standing wall surface, 52g2 sloped surface 52f release
hole J top surface Ks removal restriction part M microphone unit, Ma sound collecting surface
PN pin shape TK (wind screen) mounting structure Wa, Da ta, Db, Wb distance
18-04-2019
13
Документ
Категория
Без категории
Просмотров
0
Размер файла
24 Кб
Теги
jp2016096369, description
1/--страниц
Пожаловаться на содержимое документа