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JP2009220014A - Bolted langevin type transducer - Google Patents

Bolted langevin type transducer Download PDF

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Publication number
JP2009220014A
JP2009220014A JP2008067017A JP2008067017A JP2009220014A JP 2009220014 A JP2009220014 A JP 2009220014A JP 2008067017 A JP2008067017 A JP 2008067017A JP 2008067017 A JP2008067017 A JP 2008067017A JP 2009220014 A JP2009220014 A JP 2009220014A
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Japan
Prior art keywords
bolt
langevin type
air
screw hole
type vibrator
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Pending
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JP2008067017A
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Japanese (ja)
Inventor
Yuki Murai
勇気 村井
Haruo Yamamori
春男 山森
Haruhisa Hirose
晴久 広瀬
Yuichi Maita
雄一 舞田
Sachihiro Aoki
祥博 青木
Tonshaku To
敦灼 董
Yuki Hamaguchi
佑樹 浜口
Hiroki Kitagawa
弘樹 北川
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Honda Electronics Co Ltd
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Honda Electronics Co Ltd
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Priority to JP2008067017A priority Critical patent/JP2009220014A/en
Publication of JP2009220014A publication Critical patent/JP2009220014A/en
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Abstract

<P>PROBLEM TO BE SOLVED: To solve the following problem: in the conventional bolted Langevin type transducer, air in the threaded hole 1a of a metal block 1 is compressed by a stud bolt 10, and the compressed air is jetted between an adhesive surface 1c and a vibrating plate 9, thereby forming an air layer on an adhesive surface of the adhesive surface 1c and the vibrating plate 9 to reduce adhesive strength. <P>SOLUTION: In the figure, 1 and 2 represent metal blocks, 3 and 4 represent piezoelectric transducers, 5 and 6 represent electrodes, 7 represents a joint bolt, and 8 represents a bolted Langevin type transducer. Such a configuration is the same as that of the convention one. In this embodiment, a center hole 7a is formed in the center of the joint bolt 7 in the axial direction of the joint bolt 7. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

本発明は、スタッドボルトを用いた接着における接着強度を向上するするランジュバン型振動子に関するものである。   The present invention relates to a Langevin type vibrator that improves adhesion strength in adhesion using a stud bolt.

従来、図６及び図７に示すように、２つの金属ブロック１，２の間にリング状の圧電体振動子３，４が挟持され、これらの圧電体振動子３，４の間及び端部に電極５，６が挟持され、２つの金属ブロック１，２のねじ穴１ａ、２ａに結合ボルト７がねじ込まれて一体に形成されたボルト締めランジュバン型振動子８が提案されている。   Conventionally, ring-shaped piezoelectric vibrators 3 and 4 are sandwiched between two metal blocks 1 and 2 as shown in FIGS. A bolt-clamped Langevin type vibrator 8 is proposed in which electrodes 5 and 6 are sandwiched between and screwed into the screw holes 1a and 2a of the two metal blocks 1 and 2 and the connecting bolt 7 is screwed together.

このように構成されたボルト締めランジュバン型振動子では、図６に示すように、２つの金属ブロック１，２の一方の金属ブロック１のねじ穴１ａを、振動板９に固着したスタッドボルト１０にねじ込んで、振動板９にボルト締めランジュバン型振動子８を固定する場合、スタッドボルト１０に金属ブロック１のねじ穴１ａをねじ込む際に、金属ブロック１のねじ穴１ａに入っている空気がスタッドボルト１０で圧縮され、この圧縮された空気は接着面１ｃと振動板９の間に噴出するために、接着面１ｃと振動板９との接着面に空気層を形成し、接着強度を低減させるという問題があった。
実開平５−３９６７７号 In the bolted Langevin type vibrator configured as described above, as shown in FIG. 6, the screw hole 1 a of one metal block 1 of the two metal blocks 1 and 2 is attached to the stud bolt 10 fixed to the diaphragm 9. When screwing and fixing the bolted Langevin type vibrator 8 to the diaphragm 9, when the screw hole 1 a of the metal block 1 is screwed into the stud bolt 10, the air contained in the screw hole 1 a of the metal block 1 is stud bolt. The compressed air is jetted between the bonding surface 1c and the vibration plate 9, so that an air layer is formed on the bonding surface between the bonding surface 1c and the vibration plate 9 to reduce the bonding strength. There was a problem.
Utility Kaihei 5-39677

解決しようとする問題点は、従来のボルト締めランジュバン型振動子では、金属ブロック１のねじ穴１ａに入っている空気がスタッドボルト１０で圧縮され、この圧縮された空気は接着面１ｃと振動板９の間に噴出するために、接着面１ｃと振動板９との接着面に空気層を形成し、接着強度を低減させるという問題があった。   The problem to be solved is that in the conventional bolt-clamped Langevin type vibrator, the air contained in the screw hole 1a of the metal block 1 is compressed by the stud bolt 10, and the compressed air is compressed between the bonding surface 1c and the diaphragm. Therefore, there is a problem that an air layer is formed on the bonding surface between the bonding surface 1c and the diaphragm 9 to reduce the bonding strength.

本発明では、２つの金属ブロックの間にリング状の圧電体振動子が挟持され、前記２つの金属ブロックのねじ穴に結合ボルトがねじ込まれて一体に形成され、前記２つの金属ブロックの内面又は前記結合ボルトの側面に縦方向に少なくとも１つの溝を形成するか、前記結合ボルトの中心に縦方向に貫通孔を形成してなり、前記２つの金属ブロックの一方のねじ穴の端部を、振動板に固着したスタッドボルトに接着剤を塗布してねじ止めするときに、金属ブロックねじ穴内の空気を抜くものである。   In the present invention, a ring-shaped piezoelectric vibrator is sandwiched between two metal blocks, a coupling bolt is screwed into a screw hole of the two metal blocks, and is formed integrally. At least one groove is formed in the longitudinal direction on the side surface of the coupling bolt, or a through hole is formed in the longitudinal direction in the center of the coupling bolt, and an end portion of one screw hole of the two metal blocks is formed. When the adhesive is applied to the stud bolt fixed to the diaphragm and screwed, the air in the metal block screw hole is removed.

本発明のボルト締めランジュバン型振動子では、ランジュバン型振動子と振動板を接着する際、金属ブロックの内面又は結合ボルトの溝又は貫通孔から、金属ブロックねじ穴内に溜まった空気を外へ排出することで、金属ブロック接着面１ｃと振動板９の間に空気が侵入することを防ぐことができるという利点がある。   In the bolted Langevin type vibrator of the present invention, when the Langevin type vibrator and the diaphragm are bonded, the air accumulated in the metal block screw hole is discharged from the inner surface of the metal block or the groove or through hole of the coupling bolt. Thus, there is an advantage that air can be prevented from entering between the metal block bonding surface 1 c and the diaphragm 9.

本発明では、２つの金属ブロックの内面又は結合ボルトの側面に縦方向に少なくとも１つの溝を形成するか、結合ボルトの中心に縦方向に貫通孔を形成し、２つの金属ブロックの一方のねじ穴の端部を、振動板に固着したスタッドボルトに接着剤を塗布してねじ止めするときに、金属ブロックねじ穴内の空気を抜くものである。   In the present invention, at least one groove is formed in the longitudinal direction on the inner surface of the two metal blocks or the side surface of the coupling bolt, or a through hole is formed in the longitudinal direction in the center of the coupling bolt, and one screw of the two metal blocks is formed. When the end of the hole is screwed by applying an adhesive to a stud bolt fixed to the diaphragm, the air in the metal block screw hole is removed.

図１は本発明の実施例のボルト締めランジュバン型振動子の側面断面図で、１，２は金属ブロック、３，４は圧電体振動子、５，６は電極、７は結合ボルト、８はボルト締めランジュバン型振動子で、これらの構成は上記従来例と同じであるので、説明は省略するが、本実施例では、結合ボルト７の中心に、結合ボルト７の軸方向に中心孔７ａが形成されている。   FIG. 1 is a side sectional view of a bolt-clamped Langevin type vibrator of an embodiment of the present invention, wherein 1, 2 are metal blocks, 3, 4 are piezoelectric vibrators, 5, 6 are electrodes, 7 is a coupling bolt, 8 is In the bolt-clamped Langevin type vibrator, since these configurations are the same as those in the conventional example, description thereof is omitted. In this embodiment, a center hole 7a is formed in the center of the coupling bolt 7 in the axial direction of the coupling bolt 7. Is formed.

このように構成された本実施例のボルト締めランジュバン型振動子では、まず、図６に示した振動板９に固着されたスタッドボルト１０にボルト締めランジュバン型振動子８の金属ブロック１のねじ穴１ａを接着剤を塗布してねじ嵌合すると、スタッドボルト１０に金属ブロック１のねじ穴１ａを入れると同時に、ねじ穴１ａに入っている空気は結合ボルト７の中心孔７ａを介して外部に排出されるので、ねじ穴１ａに入っている空気は圧縮されることが無く、ボルト締めランジュバン型振動子８と振動板９の接着強度が低減されることがない。   In the bolt-clamped Langevin type vibrator of this embodiment configured as above, first, the screw hole of the metal block 1 of the bolt-clamped Langevin type vibrator 8 is fixed to the stud bolt 10 fixed to the diaphragm 9 shown in FIG. When 1a is applied with an adhesive and screwed together, the screw hole 1a of the metal block 1 is inserted into the stud bolt 10 and at the same time, the air in the screw hole 1a is exposed to the outside through the center hole 7a of the coupling bolt 7. Since the air is discharged, the air in the screw hole 1a is not compressed, and the adhesive strength between the bolted Langevin type vibrator 8 and the diaphragm 9 is not reduced.

図２は本発明の他の実施例のボルト締めランジュバン型振動子の断面図、図３は結合ボルト７の斜視図で、１，２は金属ブロック、３，４は圧電体振動子、５，６は電極、７は結合ボルト、８はボルト締めランジュバン型振動子で、これらの構成は上記実施例と同じであるので、説明は省略するが、本実施例では、結合ボルト７の側部に、結合ボルト７の軸方向に溝７ｂが形成されている。   2 is a cross-sectional view of a bolt-clamped Langevin type vibrator of another embodiment of the present invention, FIG. 3 is a perspective view of a coupling bolt 7, 1 and 2 are metal blocks, 3 and 4 are piezoelectric vibrators, 6 is an electrode, 7 is a coupling bolt, and 8 is a bolt-clamped Langevin type vibrator. Since these configurations are the same as those in the above embodiment, the description thereof will be omitted, but in this embodiment, on the side of the coupling bolt 7 A groove 7 b is formed in the axial direction of the connecting bolt 7.

このように構成された本実施例のボルト締めランジュバン型振動子では、まず、図６に示した振動板９に固着されたスタッドボルト１０に、ボルト締めランジュバン型振動子８の金属ブロック１のねじ穴１ａを接着剤を塗布してねじ嵌合すると、スタッドボルト１０に金属ブロック１のネジ穴１ａを入れると同時に、ねじ穴１ａに入っている空気は結合ボルト７の側部の溝７ｂを介して外部に排出されるので、ねじ穴１ａに入っている空気は圧縮されることが無く、ボルト締めランジュバン型振動子８と振動板９の接着強度が低減されることがない。   In the bolt-clamped Langevin type vibrator of this embodiment configured as above, first, the screw of the metal block 1 of the bolt-clamped Langevin type vibrator 8 is fixed to the stud bolt 10 fixed to the diaphragm 9 shown in FIG. When the hole 1a is screwed with an adhesive applied, the screw hole 1a of the metal block 1 is inserted into the stud bolt 10 and at the same time, the air in the screw hole 1a passes through the groove 7b on the side of the coupling bolt 7. Therefore, the air in the screw hole 1a is not compressed, and the adhesive strength between the bolted Langevin vibrator 8 and the diaphragm 9 is not reduced.

図４は本発明の他の実施例のボルト締めランジュバン型振動子の断面図、図５は図４のボルト締めランジュバン型振動子の斜視図で、１，２は金属ブロック、３，４は圧電体振動子、５，６は電極、７は結合ボルト、８はボルト締めランジュバン型振動子で、これらの構成は上記実施例と同じであるので、説明は省略するが、本実施例では、金属ブロック１，２のねじ穴１ａ、２ａの内面に、金属ブロック１，２の軸方向に溝１ｂ、２ｂが形成されている。   4 is a cross-sectional view of a bolted Langevin type vibrator according to another embodiment of the present invention, FIG. 5 is a perspective view of the bolted Langevin type vibrator of FIG. 4, 1 and 2 are metal blocks, and 3 and 4 are piezoelectrics. Body oscillators, 5 and 6 are electrodes, 7 is a coupling bolt, and 8 is a bolt-clamped Langevin type oscillator. Since these structures are the same as those in the above embodiment, the description thereof will be omitted. Grooves 1b and 2b are formed in the axial direction of the metal blocks 1 and 2 on the inner surfaces of the screw holes 1a and 2a of the blocks 1 and 2, respectively.

このように構成された本実施例のボルト締めランジュバン型振動子では、まず、図６に示した振動板９に固着されたスタッドボルト１０に、ボルト締めランジュバン型振動子８の金属ブロック１のねじ穴１ａを接着剤を塗布してねじ嵌合すると、スタッドボルト１０に金属ブロック１のねじ穴１ａを入れると同時に、ねじ穴１ａに入っている空気は金属ブロック１の溝１ｂ、金属ブロック２の溝２ｂを介して外部に排出されるので、ネジ穴１ａに入っている空気は圧縮されることが無く、ボルト締めランジュバン型振動子８と振動板９の接着強度が低減されることがない。   In the bolt-clamped Langevin type vibrator of this embodiment configured as above, first, the screw of the metal block 1 of the bolt-clamped Langevin type vibrator 8 is fixed to the stud bolt 10 fixed to the diaphragm 9 shown in FIG. When the hole 1a is screwed by applying an adhesive, the screw hole 1a of the metal block 1 is inserted into the stud bolt 10 and at the same time, the air in the screw hole 1a flows into the groove 1b of the metal block 1 and the metal block 2. Since the air is discharged to the outside through the groove 2b, the air in the screw hole 1a is not compressed, and the adhesive strength between the bolted Langevin vibrator 8 and the diaphragm 9 is not reduced.

なお、上記実施例において、結合ボルト７の側部及び金属ブロック１，２のネジ穴１ａ、２ａにそれぞれ２つの溝１ｂ、２ｂを形成した例を示したが、溝１ｂ、２ｂはそれぞれ１つでもよい。   In the above embodiment, two grooves 1b and 2b are formed in the side portions of the coupling bolt 7 and the screw holes 1a and 2a of the metal blocks 1 and 2, respectively. But you can.

本発明の実施例のボルト締めランジュバン型振動子の断面図である。It is sectional drawing of the bolt fastening Langevin type vibrator of the Example of this invention. 本発明の他の実施例のボルト締めランジュバン型振動子の断面図である。It is sectional drawing of the bolt fastening Langevin type | mold vibrator of the other Example of this invention. 図２のボルト締めランジュバン型振動子の結合ボルトの斜視図である。FIG. 3 is a perspective view of a coupling bolt of the bolted Langevin type vibrator of FIG. 2. 本発明のさらに他の実施例のボルト締めランジュバン型振動子の断面図である。It is sectional drawing of the bolt fastening Langevin type vibrator | oscillator of other Example of this invention. 図４のボルト締めランジュバン型振動子の斜視図である。FIG. 5 is a perspective view of the bolted Langevin type vibrator of FIG. 4. 従来のボルト締めランジュバン型振動子と振動板とスタッドボルトの斜視図である。It is a perspective view of the conventional bolting Langevin type vibrator, diaphragm and stud bolt. 図６のボルト締めランジュバン型振動子の断面図である。FIG. 7 is a cross-sectional view of the bolted Langevin type vibrator of FIG. 6.

符号の説明Explanation of symbols

１、２ 金属ブロック
３，４ 圧電体振動子
５，６ 電極
７ 結合ボルト
８ ボルト締めランジュバン型振動子
９ 振動板
１０ スタッドボルト 1, 2 Metal block 3, 4 Piezoelectric vibrator 5, 6 Electrode 7 Coupling bolt 8 Bolt-clamped Langevin type vibrator 9 Diaphragm 10 Stud bolt

Claims (1)

２つの金属ブロックの間にリング状の圧電体振動子が挟持され、前記２つの金属ブロックのねじ穴に結合ボルトがねじ込まれて一体に形成され、前記２つの金属ブロックの内面又は前記結合ボルトの側面に縦方向に少なくとも１つの溝を形成するか、前記結合ボルトの中心に縦方向に貫通孔を形成してなり、前記２つの金属ブロックの一方のねじ穴の端部を、振動板を固着したスタッドボルトに接着剤を塗布してねじ止めするときに、前記金属ブロックのねじ穴内の空気を抜くことを特徴とするボルト締めランジュバン型振動子。   A ring-shaped piezoelectric vibrator is sandwiched between two metal blocks, and a coupling bolt is screwed into a screw hole of the two metal blocks to be integrally formed. The inner surface of the two metal blocks or the coupling bolt At least one groove is formed in the longitudinal direction on the side surface, or a through hole is formed in the longitudinal direction in the center of the coupling bolt, and the end of one screw hole of the two metal blocks is fixed to the diaphragm A bolt-clamped Langevin type vibrator is characterized in that air is removed from the screw hole of the metal block when an adhesive is applied to the stud bolt and screwed.
JP2008067017A 2008-03-17 2008-03-17 Bolted langevin type transducer Pending JP2009220014A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103429358A (en) * 2010-12-03 2013-12-04 三角形研究学会 Method for forming an ultrasound device, and associated apparatus
WO2014020993A1 (en) 2012-08-03 2014-02-06 オリンパス株式会社 Ultrasonic vibration devices, manufacturing method for ultrasonic vibration devices, and ultrasonic medical devices
WO2014148196A1 (en) 2013-03-18 2014-09-25 オリンパス株式会社 Laminated ultrasonic vibration device, method for manufacturing laminated ultrasonic vibration device, and ultrasonic medical apparatus

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103429358A (en) * 2010-12-03 2013-12-04 三角形研究学会 Method for forming an ultrasound device, and associated apparatus
WO2014020993A1 (en) 2012-08-03 2014-02-06 オリンパス株式会社 Ultrasonic vibration devices, manufacturing method for ultrasonic vibration devices, and ultrasonic medical devices
CN104520019A (en) * 2012-08-03 2015-04-15 奥林巴斯株式会社 Ultrasonic vibration devices, manufacturing method for ultrasonic vibration devices, and ultrasonic medical devices
CN104520019B (en) * 2012-08-03 2017-03-08 奥林巴斯株式会社 Ultrasonic vibration device, manufacturing method of ultrasonic vibration device, and ultrasonic medical device
US9831412B2 (en) 2012-08-03 2017-11-28 Olympus Corporation Ultrasound vibration device, method of manufacturing ultrasound vibration device, and ultrasound medical apparatus
WO2014148196A1 (en) 2013-03-18 2014-09-25 オリンパス株式会社 Laminated ultrasonic vibration device, method for manufacturing laminated ultrasonic vibration device, and ultrasonic medical apparatus

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