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JP2009130408

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This translation is machine-generated. It cannot be guaranteed that it is intelligible, accurate,
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DESCRIPTION JP2009130408
PROBLEM TO BE SOLVED: To attach a sounding tool to a mounting object in a stable state. A
mounting tool for a sounding tool according to the present invention is a mounting tool for a
sounding tool having a super magnetostrictive actuator and having a curved surface portion
which bulges in a bowl shape or a hemispherical shape at an upper end portion. Holding portion
20 for holding the sound producing tool 50 with respect to the mounting object 12 and the
holding portion 20 can be detached from the mounting object 12 by having the supporting
portion in contact with the mounting portion and bringing the supporting portion into contact
with the curved surface portion And a lock portion 45 for pressing and fixing the sound
producing tool 50 to the mounting object 12 in accordance with the pressing. [Selected figure]
Figure 1
Sounding tool provided with mounting jig for the sounding tool and mounting jig
[0001]
The present invention relates to a mounting jig for a sounding tool including a giant
magnetostrictive element and a sounding tool including the mounting jig.
[0002]
Heretofore, in magnetostrictive devices such as speakers, a super magnetostrictive element has
been used to obtain an audio output.
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The giant magnetostrictive element has a characteristic that its dimensions change in accordance
with the strength of the magnetic field, and a voice is output utilizing this characteristic. In recent
years, high-speed, large-displacement, high-power super-magnetostrictive actuators that use
super-magnetostrictive elements have attracted attention. Patent Document 1 discloses a
sounding tool for driving a diaphragm with a giant magnetostrictive actuator to obtain an audio
output.
[0003]
In the sound producing tool disclosed in Patent Document 1, the holding member covering the
super magnetostrictive actuator is provided with a fixing member such as a suction cup, and the
sound producing tool is fixed to the mounting object.
[0004]
JP, 2007-81838, A (abstract, FIG. 2)
[0005]
However, in the sounding tool disclosed in Patent Document 1, since the attachment to the
mounting object is possible by providing a fixing member such as a suction cup, the sounding
tool can be attached to the mounting object by a simple method. Although it can be done, the
mounting state becomes unstable when some external force is applied to the sounding tool.
Therefore, improvements are required to stabilize the mounting state.
[0006]
The present invention has been made in view of such problems, and an object of the present
invention is to provide a mounting jig for the sounding tool and a sounding tool provided with
the mounting jig capable of mounting the sounding tool in a stable state. It is intended to be
provided.
[0007]
In order to solve the above problems, the present invention is a mounting jig for a sounding tool
including a super magnetostrictive actuator and having a curved surface portion that bulges in a
bowl shape or a hemispherical shape at the upper end, and supports the curved surface portion A
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holding portion for holding the sound producing tool against the mounting object by bringing the
supporting portion into contact with the curved surface portion, a fixing portion for detachably
fixing the holding portion to the mounting object, and a holding portion While being pressed to
the attachment object side, it has a lock portion for pressing and fixing the sounding tool to the
attachment object in accordance with this pressing.
[0008]
When configured in this manner, it becomes possible to fix the sound producing tool to the
attachment object while holding the sound producing tool at a predetermined position by the
holding portion.
In addition, since the support portion is in contact with the curved surface portion, the support
portion and the curved surface portion are not in surface contact but in point contact with each
other.
Therefore, even if the direction of the force applied to the sounding tool deviates from the
direction perpendicular to the mounting surface of the mounting object, the force acting in the
direction deviated from the perpendicular direction is absorbed.
Therefore, the sounding tool fixed by the mounting jig does not tilt with respect to the mounting
surface. As a result, the sounding tool can be fixed to the mounting object in a stable state, and
the vibration of the super magnetostrictive element in the sounding tool can be accurately
transmitted to the mounting object. In addition, since the fixing portion is detachable from the
mounting object, the mounting position can be easily changed.
[0009]
According to another invention, in addition to the above-described invention, the support portion
is made of an elastic body. In such a configuration, the contact area of the support portion in the
curved surface portion can be increased, so that the sounding tool can be firmly fixed in a more
stable state.
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[0010]
Moreover, in addition to the above-mentioned invention, when another structure presses a
holding | maintenance part by a lock part, a support part presses a curved surface part to the
attachment target object side. When configured in this manner, the sounding tool can be fixed to
the mounting object by pressing the holding portion by the lock portion.
[0011]
According to another invention, in addition to the above-described invention, the fixing portion
has a suction member capable of vacuum suction. In such a configuration, when the mounting
object has a flat surface, the mounting jig can be attached and detached.
[0012]
According to another invention, in addition to the above-described invention, the fixing portion is
made of a magnetic member. When configured in this manner, when the mounting object is a
magnetic member or the like, it becomes possible to attach and detach the mounting jig using the
magnetic force.
[0013]
Furthermore, in the invention, in addition to the above-described invention, the lock portion
further includes a pressing portion for pressing the holding portion and a base portion for
receiving the holding portion pressed by the pressing portion. is there. In such a configuration,
the holding portion is nipped between the pressing portion and the base portion, so that the state
of the pressed holding portion is stabilized. Therefore, the sounding tool can be fixed to the
mounting object in a strong and stable state.
[0014]
Further, according to another invention, in addition to the above-mentioned invention, the
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pressing portion has a form of a cap or a nut provided with a screw hole, and the base portion
has an extending portion extending upward, And a screw groove which can be screwed into the
screw hole is provided in the extension part, and the extension part is inserted into the insertion
hole provided in the holding part, and the extension part is screwed into the screw hole of the
pressing part The holder is pressed. In such a configuration, the sounding tool can be fixed to the
mounting object by screwing the pressing portion into the extension portion.
[0015]
Furthermore, in the invention, in addition to the above-described invention, the pressing portion
has a form of a lever which can be pulled up and pushed down, and the pressing portion presses
the holding portion as the lever is pulled up or pushed down. A pressing part is provided. In such
a configuration, the sounding tool can be fixed to the mounting object by pulling up or pushing
down the lever of the lock portion.
[0016]
Furthermore, in addition to the above-mentioned invention, other inventions further provide a
holding part with a flat plate part having a through hole in which a sounding body is
accommodated. When configured in this manner, the flat plate portion can position the sounding
tool. Moreover, it can prevent that the said sounding tool shifts | deviates in the state which fixed
the sounding tool.
[0017]
A sounding tool including the mounting jig of the present invention includes a mounting jig for
the sounding tool, a giant magnetostrictive element, a magnet for applying a magnetic field to the
giant magnetostrictive element, and a coil for changing the magnetic field to the giant
magnetostrictive element. A super magnetostrictive actuator having a case for containing a giant
magnetostrictive element, a magnet and a coil, and a movable rod having one end connected to
the giant magnetostrictive element and the other end protruding from the case, and a wedge or
hemispherical shape at the upper end And a sounding tool having a curved curved portion. When
configured in this manner, the sounding tool can be fixed to the mounting object.
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[0018]
According to the present invention, the sounding tool can be attached to the mounting object in a
stable state.
[0019]
First Embodiment Hereinafter, a mounting jig 10 for a sound production tool according to a first
embodiment of the present invention (hereinafter simply referred to as a mounting jig 10).
Will be described with reference to the drawings. In the following description (common to each
embodiment), the arrow X1 direction shown in FIGS. 1 to 7 is left, the arrow X2 direction is right,
the arrow Y1 direction is forward, and the arrow Y2 direction is backward, The arrow Z1
direction is defined as upper, and the arrow Z2 direction is defined lower.
[0020]
FIG. 1 is a perspective view showing a sounding tool 50 attached by a mounting jig 10 according
to a first embodiment of the present invention. FIG. 2 is a side view showing the sounding tool 50
attached by the mounting jig 10 according to the first embodiment of the present invention. FIG.
3 is a side sectional view of the mounting jig 10 in a state where the sounding tool 50 is mounted
by the mounting jig 10 according to the first embodiment of the present invention.
[0021]
As shown in FIGS. 1 to 3, the attachment jig 10 is a jig for attaching the sounding tool 50 to, for
example, a table 12 which is an attachment object. In addition, the attachment object of the
sound production tool 50 is not limited to the table 12, It is also possible to attach to other
attachment objects, such as glass and a wall, besides the table 12. FIG. The mounting jig 10
mainly includes a holding portion 20, a suction cup 38 serving as a fixed portion, and a lock
portion 45.
[0022]
The holding portion 20 is provided upright on the fixed upper plate 22 which is a flat plate, the
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fixed lower plate 24 which is a flat plate disposed below the fixed upper plate 22, and the fixed
upper plate 22. 2 and the upper base plate 28 disposed on the upper end of the support column
26, and the fixing elastic body 30 serving as an elastic body attached to the lower surface side of
the upper base plate 28 (see FIGS. 2 and 3) And a supporting point elastic body 32 attached to
the lower surface side of the right end portion of the fixed lower plate 24.
[0023]
The fixed upper plate 22 has a substantially rectangular form, and the left end face has a
semicircular shape.
Further, a substantially circular through hole 34 having a diameter smaller than the diameter of
the end face of the semicircular shape is provided on the left side of the fixed upper plate 22
along the end face of the semicircular shape. Further, a rectangular hole 36 having a
substantially rectangular shape is provided in an area on the right side in the fixed upper plate
22 (see FIG. 3). Examples of the material of the fixed upper plate 22 include transparent resins
such as acrylic resin, polycarbonate or ABS resin, but the material of the fixed upper plate 22 is
not limited to these resins.
[0024]
The fixed lower plate 24 is a flat plate having substantially the same size as the fixed upper plate
22 in the left-right direction. The fixed lower plate 24 is disposed on the lower surface side of the
fixed upper plate 22 so as to be displaced to the right with respect to the fixed lower plate 24. At
the left end of the fixed lower plate 24, there is provided an opening 24a having substantially the
same shape as the semicircular shape on the rear side half of the through hole 34. Further, as
shown in FIG. 3, a large diameter hole 24 b is provided in the fixed lower plate 24. The large
diameter hole 24 b is formed to have a diameter larger than that of the rectangular hole 36
although the central axis of the rectangular hole 36 of the fixed upper plate 22 is taken as a
central axis. As the material of the fixed lower plate 24, it is possible to adopt the same as the
fixed upper plate 22.
[0025]
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A substantially cylindrical support column 26 is erected at three locations on the front, rear, and
right sides of the through hole 34 in the fixed upper plate 22. The support 26 has a columnar
main support 26 a and protrusions 26 b protruding vertically from both ends thereof. The
protrusion 26 b has a cylindrical shape with a diameter smaller than the diameter of the main
support 26 a. By inserting one end of the protrusion 26 b into the small diameter hole 22 b
provided in the fixed upper plate 22, the support 26 is fixed to the fixed upper plate 22. Further,
an upper substrate 28 is attached above the support column 26. The upper substrate 28 has a
substantially semi-circular shape, and a curved portion 28 a that bulges in a curved shape toward
the left is formed substantially at the center in the front-rear direction on the left end face
thereof. Further, the upper base plate 28 is provided with a circular circular hole 28b (see FIG. 3).
The lower portion of the circular hole 28 b is larger in diameter than the upper portion. The
support 26 is fixed to the upper substrate 28 by inserting the protrusion 26 b at the other end of
the support 26 and a part of the support 26 a into the circular hole 28 b. As a material of the
upper substrate 28, it is possible to adopt the same one as the fixed upper plate 22.
[0026]
As shown in FIG. 3, a disk-shaped fixing elastic body 30 serving as a support portion is fixed to a
region including the curved portion 28 a on the lower surface side of the upper substrate 28. The
fixing elastic body 30 is formed of, for example, silicone rubber. However, another elastic body
may be adopted as the material of the fixing elastic body 30. Further, a supporting point elastic
body 32 is fixed to the lower surface near the right end portion of the fixed lower plate 24. The
supporting point elastic body 32 has a rectangular parallelepiped shape. As a material of the
elastic member 32 for supporting points, it is possible to adopt, for example, silicone rubber as in
the case of the elastic member 30 for fixing.
[0027]
As shown in FIG. 3, a suction cup 38 is disposed so as to extend from the inside of the large
diameter hole 24b of the fixed lower plate 24 to the back side thereof. The suction cup 38 has a
conical portion 38a having a substantially conical shape, and an outer peripheral portion 38b
provided on the outside near the bottom of the conical portion 38a along the entire
circumference. The conical portion 38 a is accommodated inside the large diameter hole 24 b,
and the outer peripheral portion 38 b is located on the back side of the fixed lower plate 24.
Although the upper part of the large diameter hole 24b is closed by the fixed upper plate 22,
since the conical portion 38a has a substantially conical form, the fixed upper plate 22 and the
suction cup 38 are not in close contact with each other. A space 39 is formed between them (see
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FIG. 3). At the center of the conical portion 38a, there is provided a wide hole 38c whose width
gradually widens from the top to the bottom (see FIG. 3). As a material of the suction cup 38, an
elastic body having an adsorption force such as silicone rubber can be suitably used.
[0028]
The lock portion 45 is composed of a support column 46 serving as a base portion and a lever
47 serving as a pressing portion. As shown in FIG. 3, in the vicinity of the lower end portion of
the support 46, a stand 46b whose area gradually increases as it goes downward is provided. In
addition, a circular pin hole 46 a penetrating in the front and back direction is formed above the
support column 46. The base portion 46b of the support 46 is accommodated inside the wide
hole 38c of the conical portion 38a. By the base portion 46b being accommodated in the wide
hole 38c, the support 46 can be prevented from coming off the suction cup 38 upward.
[0029]
As shown in FIGS. 1 to 3, the lever 47 has a pivoting portion 47 a and a handle portion 47 b. A
groove 47c is formed in the turning portion 47a, which is cut out from the left to the right. The
thickness of the groove 47 c is formed slightly larger than the thickness in the front-rear
direction of the support 46. The rotating portion 47a is provided with a through hole 47d which
penetrates in the front and back direction with the groove 47c therebetween. The through hole
47d is provided at a position above the center of the pivoting portion 47a.
[0030]
The handle portion 47 b is formed to gradually decrease in thickness toward the right. The lever
47 can be rotated relative to the column 46 by disposing the column 46 inside the groove 47 c
and inserting the cylindrical pin 48 into the through hole 47 d of the rotating part 47 a and the
pin hole 46 a of the column 46. It is supported. The distance from the pin 48, which is the
rotation center of the lever 47, to the lower end surface 47e (see FIG. 1) of the lever 47 is larger
than the distance to the left end surface 47f. Therefore, when the lever 47 is pushed down, the
fixed upper plate 22 is pressed downward by the lower end surface 47 e which is a pressing
portion, and when the lever 47 is pulled up, the fixed upper plate 22 is released from the
downward pressure.
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[0031]
Next, the configuration of the sounding tool 50 will be described.
[0032]
FIG. 4 is a side sectional view of the sounding tool 50. As shown in FIG.
[0033]
The sounding tool 50 is detachably attached to the table 12 as an attachment object by the
attachment jig 10.
A battery drive amplifier (not shown) is connected to the sound generator 50, and a sound source
(for example, a PDA (not shown) or the like) is connected to the battery drive amplifier.
The battery drive amplifier (not shown) is an amplifier having a battery function, and largely
adjusts the sound input from a PDA (not shown) or the like which is a sound source.
[0034]
The sounding tool 50 mainly includes a giant magnetostrictive actuator 70, a case body 54
covering the outer side of the giant magnetostrictive actuator 70, and a diaphragm 65. The case
body 54 has a substantially conical shape, and a projection 56 projecting upward is provided on
the top of the case body 54. The upper end 56a of the protrusion 56 has a hemispherical shape.
Further, the lower side of the case body 54 is open. The case body 54 is provided with two space
portions, an opening space portion 58 opening on the bottom side and a small space portion 60.
The open space portion 58 and the small space portion 60 are partitioned by the partition
portion 62. The giant magnetostrictive actuator 70 is disposed inside the opening space 58.
Then, a rubber material 64 as an elastic material is interposed between the partition portion 62
and the super magnetostrictive actuator 70. The giant magnetostrictive actuator 70 is fixed by
screw 66 in the case body 54. The screw 66 penetrates the partition 62 and the rubber material
64 from above the partition 62 and is screwed into the upper end of the giant magnetostrictive
actuator 70. A diaphragm 65 is attached to the tip of a movable rod 79 which protrudes
downward from a super magnetostrictive actuator 70 described later. The vibrating plate 65
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protrudes below the opening surface 67 of the case body 54. Therefore, when the sounding tool
50 is disposed on the table 12 with the diaphragm 65 directed downward, the diaphragm 65 and
the table 12 contact with each other reliably. Therefore, the vibration of the giant
magnetostrictive actuator 70 is reliably transmitted to the table 12.
[0035]
In the sounding tool 50, a rubber material 64 is provided between the partition portion 62 and
the giant magnetostrictive actuator 70. For this reason, the vibration of the giant
magnetostrictive actuator 70 can be easily transmitted only to the table 12 which is the object of
sound transmission. Therefore, sound leakage from the sounding tool 50 to the outside can be
prevented.
[0036]
Next, the configuration of the giant magnetostrictive actuator 70 will be described.
[0037]
FIG. 5 is a side sectional view of the giant magnetostrictive actuator 70 used for the sounding
tool 50 in FIG.
[0038]
The giant magnetostrictive actuator 70 includes a giant magnetostrictive element 72, a coil 74
for applying a magnetic field change to the giant magnetostrictive element 72, a spring 75 for
applying a compressive load to the giant magnetostrictive element 72, and a magnet for applying
a bias magnetic field to the giant magnetostrictive element 72 Magnets 76 and 77 are
accommodated in the case 78.
The base end (upper end) of the giant magnetostrictive element 72 is positioned in the case 78,
the movable rod 79 is connected to the free end (lower end), and the spring 75 is interposed
between the movable rod 79 and the case 78 (lid 80). It is arranged.
The case 78, the movable rod 79 and the spring 75 are made of, for example, a magnetic
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material such as iron or ferrite.
[0039]
The case 78 includes a bottomed cylindrical case main body 78a whose lower end is open, and a
lid 80 for closing the opening of the case main body 78a. The spring 75 is a disc spring in the
present embodiment (in the following description, the spring 75 is referred to as a disc spring
75). The tip end of the movable rod 79 penetrates through the holes 75a and 80b provided on
the central axis of the disc spring 75 and the lid 80 and protrudes to the outside. The peripheral
portion of the disc spring 75 is in close contact with the inner surface of the lid 80 to cover the
hole 80 b of the lid 80 from within the case 78.
[0040]
On the inner surface of the lid 80, a disc spring recess (first recess) 80a is provided for inserting
and positioning the peripheral portion of the disc spring 75. The disc spring 75 itself can be
reliably positioned by the first recess 80a. Further, the movable rod 79 penetrating the center of
the disc spring 75 can also be positioned (centered) by the disc spring 75. The flange 79b of the
movable rod 79 has a two-stage configuration having a step 79c. By fitting the hole 75a at the
center of the disc spring 75 to the step 79c, a close contact structure is obtained.
[0041]
Magnets 76 and 77 for applying a bias magnetic field to the giant magnetostrictive element 72
are respectively disposed at the base end and the free end of the giant magnetostrictive element
72. At the base end of the movable rod 79, a connection recess (second recess) 79a is provided
for inserting and positioning the free end of the giant magnetostrictive element 72 and the
magnet 76 disposed at the free end thereof. The proximal end of the movable rod 79 is provided
with a flange 79 b for increasing the diameter of the proximal end. The second recess 79a is
formed as a recess that is recessed downward. The depth of the second recess 79 a is formed
deeper than the thickness of the magnet 76. Thus, the magnet 76 is accommodated in the second
recess 79a, and the free end of the giant magnetostrictive element 72 is also inserted.
[0042]
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The second recess 79 a allows both the free end of the giant magnetostrictive element 72 and
the magnet 76 disposed at the free end to be coaxially positioned with respect to the movable
rod 79. That is, the free end of the giant magnetostrictive element 72, the magnet 76 disposed at
the free end thereof, and the base end of the movable rod 79 can be centered with high accuracy
and coupled so as not to be displaced.
[0043]
A positioning recess (the same as the second recess 79 a) in which the proximal end of the giant
magnetostrictive element 72 and the magnet 77 disposed at the proximal end are fitted and
positioned on the upper surface 78 b of the case main body 78 a 3) a recess 78c is provided. The
third recess 78c is formed as a recess that is recessed upward. The depth of the third recess 78 c
is formed deeper than the thickness of the magnet 77. Thus, the magnet 77 is accommodated in
the third recess 78c, and the base end of the giant magnetostrictive element 72 is also inserted.
[0044]
By the third concave portion 78c, both the proximal end of the giant magnetostrictive element 72
and the magnet 77 disposed at the proximal end can be coaxially positioned with respect to the
upper surface 78b of the case main body 78a. That is, the base end of the giant magnetostrictive
element 72 and the magnet 77 disposed at the base end can be positioned with high precision
centering so as not to be displaced from the upper surface portion 78b of the case main body
78a.
[0045]
The upper surface portion 78b of the case main body 78a is provided with a bobbin concave
portion (fourth concave portion) 78d in which a part of the bobbin 81 of the coil 74 is fitted and
fixed. The bobbin 81 has a cylindrical portion through which the giant magnetostrictive element
72 passes, and a disk-shaped flange provided at both ends thereof. Therefore, the planar shape of
the fourth concave portion 78 d is formed as a so-called donut-shaped concave portion
corresponding to the shape of the end surface of the bobbin 81. The fourth concave portion 78d
is provided by reliably positioning the bobbin 81 of the coil 74 with respect to the upper surface
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portion 78b of the case main body 78a to make the gap between the giant magnetostrictive
element 72 and the bobbin 81 highly accurate and This is to make it possible to set a minute gap.
A cylindrical rib is raised at a central portion of the upper surface portion 78b, and the third
concave portion 78c and the fourth concave portion 78d are formed by the rib.
[0046]
In the present embodiment, since the case 78, the movable rod 79 and the disc spring 75 are
formed of a magnetic material, the magnetic field by the bias magnetic application magnets 76
and 77 disposed at both ends of the giant magnetostrictive element 72 is It works in the
direction shown by the arrow in FIG. That is, a complete magnetic circuit (closed loop) via the
movable rod 79, the disc spring 75 and the case 78 is configured. Thereby, high efficiency of the
giant magnetostrictive actuator 70 can be realized. As a result, since battery drive can be
realized, this super magnetostrictive actuator 70 can be incorporated into, for example, a mobile
product or the like. Furthermore, by achieving high efficiency in this way, it is possible to achieve
miniaturization accordingly.
[0047]
Next, a method of mounting the sounding tool 50 by the mounting jig 10 will be described.
[0048]
First, the sounding tool 50 is placed at a predetermined position on the table 12.
Then, the mounting jig 10 is disposed on the table 12 so that the sounding tool 50 is
accommodated inside the through hole 34 of the fixed upper plate 22. At this time, the lever 47
is maintained in a pulled up state, and the fixing elastic body 30 is brought into contact with the
upper end 56 a of the sounding tool 50. Next, the fixed upper plate 22 is pressed against the
table 12 and the suction cup 38 is adsorbed on the table 12.
[0049]
Next, the lever 47 is turned clockwise (in the direction of arrow A) so as to change from the state
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shown by the broken line in FIG. 2 to the state shown by the solid line. Here, as shown in FIG. 3,
although the lever 47 is connected to the support 46 and the suction cup 38 via the pin 48, the
height of the support 46 and the suction cup 38 relative to the table 12 does not significantly
change. Further, the distance from the pin 48 to the lower end surface 47e is larger than the
distance from the pin 48 to the left end surface 47f. Therefore, when the lever 47 is turned
clockwise in FIG. 2, the fixed upper plate 22 and the fixed lower plate 24 are pushed down to the
table 12 side. Specifically, when the lever 47 is turned clockwise, the support 46 shown in FIG. 3
is pulled up. When the column 46 is pulled up, the conical portion 38a is also pulled up along
with the pulling up. Then, a vacuum state is established between the suction cup 38 and the table
12, and the atmospheric pressure due to the vacuum is transmitted to the column 46, the lever
47, the fixed upper plate 22 and the fixed lower plate 24, and the fixed upper plate 22 and the
fixed lower plate 24 are It acts as a pushing force. As a result, the fixed upper plate 22 and the
fixed lower plate 24 are pushed down to the table 12 side.
[0050]
In addition, since the fixing elastic body 30 is connected to the fixing upper plate 22 via the
upper substrate 28 and the support column 26, the force of pressing the fixing upper plate 22 is
also transmitted to the fixing elastic body 30. Is pressed downward by the fixing elastic body 30.
That is, when the lever 47 is pivoted in the direction of arrow A, the mounting jig 10 is pivoted
counterclockwise with the fulcrum elastic body 32 as a fulcrum. At this time, a pressing force
also acts on the supporting point elastic body 32, but the fixing elastic body 30 is also rotated
counterclockwise with the supporting point elastic body 32 as a supporting point. Therefore,
when the lever 47 is rotated in the direction of arrow A, the fixing elastic body 30 contacts the
upper end portion 56a, and when the lever 47 is further rotated in arrow A, the fixing elastic
body 30 is at the upper end The portion 56a is firmly pressed down. As described above, the
sounding tool 50 is attached to the table 12 in a stable state by the attachment jig 10.
[0051]
When the sounding tool 50 is attached by the mounting jig 10 configured as described above,
the sounding tool 50 is held by holding the sounding tool 50 at a predetermined position of the
table 12 by the holding unit 20 and pressing the lever 47. Can be fixed to the table 12. Further,
since the upper end portion 56a has a hemispherical shape, the fixing elastic body 30 and the
upper end portion 56a are not in surface contact but in point contact with each other. Therefore,
even if the direction of the force applied to the sounding tool 50 deviates from the Z2 direction,
the fixing elastic body 30 absorbs the force directed in the front-rear direction and the left-right
04-05-2019
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direction. Therefore, the sounding tool 50 can be prevented from tilting relative to the table 12.
As a result, the sounding tool 50 can be attached to the table 12 in a stable state, and the
vibration of the giant magnetostrictive element 72 in the sounding tool 50 can be accurately
transmitted to the table 12. In addition, since the sounding tool 50 is in contact with the fixing
elastic body 30 at the upper end portion 56a, the contact area is increased. Therefore, the
sounding tool 50 can be firmly attached to the table 12 in a more stable state. In addition, since
the suction cup 38 is removable from the table 12, the mounting position of the sounding tool 50
can be easily changed.
[0052]
When the sounding tool 50 is attached by the attachment jig 10, when the lever 47 is pushed in
the direction of arrow A in FIG. 2, the fixed upper plate 22 is nipped between the lever 47 and
the suction cup 38, The sounding tool 50 can be reliably fixed to the table 12 while pressing the
fixed upper plate 22 to the suction cup 38 side.
[0053]
Second Embodiment Hereinafter, a mounting jig 90 for a sound production tool according to a
second embodiment of the present invention (hereinafter simply referred to as a mounting jig
90).
Will be described with reference to the drawings. In addition, in the attachment jig 90 which
concerns on 2nd Embodiment, while attaching | subjecting the code | symbol same about the
matter in common with 1st Embodiment, the description is abbreviate | omitted or simplified.
[0054]
FIG. 6 is a perspective view showing a state in which the sounding tool 100 is attached by the
attachment jig 90 according to the second embodiment of the present invention. FIG. 7 is a side
sectional view of the mounting jig 90 in a state in which the sounding tool 100 is mounted by the
mounting jig 90 according to the second embodiment of the present invention.
[0055]
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The attachment jig 90 according to the second embodiment of the present invention is mainly
different in the configuration of the attachment jig 10 according to the first embodiment of the
present invention and the lock portion 91. The lock portion 91 includes a base portion 92 and a
tightening portion 93 serving as a pressing portion. As shown in FIG. 7, the base portion 92 is
configured of a disk-shaped base portion 92 a and a columnar extending portion 92 b extending
upward from the center of the base portion 92 a. A screw groove 92c is formed on the outer
peripheral surface of the extending portion 92b. The pedestal 92 a of the pedestal 92 is housed
inside the conical portion 38 a of the suction cup 38. In the present embodiment, the opening
edge 24c of the large diameter hole 24b is in contact with the surface of the conical portion 38a.
The fastening portion 93 has an octagonal prism outer shape. Further, a screw hole 93 b is
formed upward substantially at the center on the lower surface side. When the extension part 92
b is screwed into the screw hole 93 b of the tightening part 93 and the tightening part 93 is
tightened, the fixed upper plate 22 and the fixed lower plate 24 are pushed down to the table 12
side. Specifically, when the tightening portion 93 is tightened, the base portion 92 shown in FIG.
7 is pulled upward. When the base portion 92 is pulled up, the conical portion 38a is also pulled
up with the pulling up. Then, a vacuum state is established between the suction cup 38 and the
table 12, and the atmospheric pressure due to the vacuum is transmitted to the base portion 92,
the tightening portion 93, the fixed upper plate 22 and the fixed lower plate 24, and the fixed
upper plate 22 and the fixed lower It acts as a force to push down the plate 24. As a result, the
fixed upper plate 22 and the fixed lower plate 24 are pushed down to the table 12 side. On the
other hand, when the tightening portion 93 is rotated in the reverse direction, the fixed upper
plate 22 and the fixed lower plate 24 are released from the pressing force. In the present
embodiment, the supporting point elastic body 32 is not attached to the back side of the fixed
lower plate 24.
[0056]
In the present embodiment, the sounding tool 100 is attached to the table 12 by the attachment
jig 90. The sounding tool 100 includes a giant magnetostrictive actuator 70, a diaphragm 65
attached to the end of a movable rod 79 projecting from the giant magnetostrictive actuator 70,
and a hemispherical hemispherical body attached to an end face 78f of the upper surface 78b of
the giant magnetostrictive actuator 70. And 101. The hemisphere 101 is attached substantially at
the center of the end face 78f.
[0057]
Next, the attachment method of the sound production tool 100 by the attachment jig 90 is
demonstrated.
04-05-2019
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[0058]
First, the sounding tool 100 is placed at a predetermined position on the table 12 with the
diaphragm 65 down.
Then, the mounting jig 90 is disposed on the table 12 so that the sounding tool 100 can be
accommodated inside the through hole 34 of the fixed upper plate 22. At this time, the fixing
elastic body 30 is brought into contact with the hemisphere 101 of the sounding tool 100. Next,
the fixed upper plate 22 is pressed against the table 12 and the suction cup 38 is adsorbed on
the table 12. Next, the extension portion 92 b is screwed into the screw hole 93 b of the
tightening portion 93, and the fixing upper plate 22 is tightened by the tightening portion 93.
Then, the fixing upper plate 22 is pushed down, the pressing force is also transmitted to the
fixing elastic body 30, and the sounding tool 100 is pressed downward by the fixing elastic body
30. Thereby, the sounding tool 100 is fixed to the table 12.
[0059]
When the sounding tool 100 is attached by the mounting jig 90 configured as described above,
the sounding tool 100 is fixed to the table 12 with the sounding tool 100 held at a
predetermined position on the table 12 by the holding unit 20 It is possible to Further, since the
sounding tool 100 has the hemispherical body 101, the fixing elastic body 30 and the
hemispherical body 101 are in point contact with each other. Therefore, the sounding tool 100
can be prevented from tilting relative to the table 12. As a result, the sounding tool 100 can be
attached to the table 12 in a stable state, and the vibration of the giant magnetostrictive element
72 in the sounding tool 100 can be accurately transmitted to the table 12.
[0060]
As mentioned above, although each embodiment of the present invention was described, the
present invention is not limited to the above-mentioned form, and can be carried out in the form
which changed variously.
[0061]
04-05-2019
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In each of the above-described embodiments, the suction cup 38 is adopted as the fixed part, but
the fixed part is not limited to the suction cup 38. For example, when the mounting object is
made of a magnetic member etc. A member may be adopted.
Moreover, you may employ | adopt the other member which exhibits adhering force as an
adhering part.
[0062]
Moreover, in each of the above-mentioned embodiments, although the two plate members of the
fixed upper plate 22 and the fixed lower plate 24 are overlapped, they may be configured by one
plate member.
[0063]
Further, although the supporting point elastic body 32 is attached to the fixed lower plate 24 in
the first embodiment described above, the supporting point elastic body 32 may not be attached.
Further, although the supporting point elastic body 32 is not attached to the fixed lower plate 24
in the second embodiment described above, the supporting point elastic body 32 may be
attached.
[0064]
Further, in the first embodiment described above, although the sounding tool 50 is fixed to the
table 12 when the lever 47 is pushed down, when the lever 47 is pulled up, the sounding tool 50
is a table It is good also as composition fixed to 12.
[0065]
In each of the above-described embodiments, the upper end portion 56a and the hemisphere 101
of each of the sounding tools 50 and 100 have a hemispherical shape, but these shapes may be
other curved shapes such as a bowl shape. Also good.
[0066]
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In the second embodiment described above, the tightening portion 93 has a cap shape, but the
shape of the tightening portion 93 is not limited to the cap shape. For example, a nut shape
Other shapes may be used.
[0067]
In the first embodiment described above, the super magnetostrictive actuator 70 is fixed to the
inside of the case body 54 by the screw 66. For example, as shown in FIG. 8, the case body 54 is
an upper case portion 54a. And the lower case portion 54b, and the lower case portion 54b is
provided with the collar portion 54c extending inward at equal intervals along the entire
circumference or circumferential direction on the bottom surface side of the lower case portion
54b. The super magnetostrictive actuator 70 may be held in the opening space 58 by bringing
the flange portion 54c into contact with the giant magnetostrictive actuator 70 by fitting the
upper case portion 54a.
In this case, since the rubber material 64 is interposed between the partition portion 62 and the
giant magnetostrictive actuator 70, the giant magnetostrictive actuator 70 is held in the opening
space 58 in a state of receiving an appropriate repulsive force from the rubber material 64. Be
done.
In order to fix the upper case portion 54a and the lower case portion 54b, as shown in FIG. 8, a
step portion 54d having a level difference toward the upper side is provided inside the upper
case portion 54a, and it protrudes upward to the lower case portion 54b. This can be achieved by
providing the protrusion 54e, providing a screw groove on the contact surface between the two,
and screwing the upper case portion 54a and the lower case portion 54b.
Further, the upper case portion 54a and the lower case portion 54b may be fitted and fixed
without providing a screw groove in the contact surface of the two.
[0068]
The mounting jig for the sounding tool of the present invention and the sounding tool equipped
with the mounting jig can be used in the industry that provides various electric devices such as
acoustic devices.
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[0069]
It is a perspective view which shows the state which attached the sound production tool by the
attachment jig which concerns on the 1st Embodiment of this invention.
It is a side view which shows the state which attached the sound production tool by the mounting
jig which concerns on the 1st Embodiment of this invention. It is a sectional side view of a
mounting jig in the state where a sound production tool was attached by a mounting jig
concerning a 1st embodiment of the present invention. It is a sectional side view of the sound
production tool attached by the mounting jig which concerns on the 1st Embodiment of this
invention. FIG. 5 is a side cross-sectional view of a giant magnetostrictive actuator used for the
sounding tool in FIG. 4. It is a perspective view which shows the state which attached the sound
production tool by the attachment jig which concerns on the 2nd Embodiment of this invention.
It is a sectional side view of a mounting jig in the state where a sound production tool was
attached by a mounting jig concerning a 2nd embodiment of the present invention. It is a figure
which shows the modification of this invention, and is a sectional side view of the pronunciation
tool at the time of dividing a case body into 2 parts.
Explanation of sign
[0070]
DESCRIPTION OF SYMBOLS 10, 90 ... Attachment jig of sounding tool 12 ... Table (attachment
object) 20 ... Holding part 22 ... Fixed upper plate (a part of flat plate part) 24 ... fixed lower plate
(a part of flat plate part) 24b ... large diameter Hole (part of insertion hole) 30: elastic body for
fixing (supporting part) 32: elastic body for supporting point 34: through hole 36: rectangular
hole (part of insertion hole) 38: suction disk (fixed part) 45, 91 Locking part 46: Post (base part)
47: Lever (pressing part) 47e: Lower end face (pushing part) 50, 100: Sounding tool 56a: Upper
end part (curved part) 70: Super magnetostrictive actuator 72: Super magnetostrictive element
74 ... coil 76, 77 ... magnet 78 ... case 92 ... base part 92b ... extension part 93 ... tightening part
(pressing part) 101 ... hemispherical body (curved part)
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