JPH067679Y2 - Piezoelectric vibrator power supply structure - Google Patents

Piezoelectric vibrator power supply structure

Info

Publication number
JPH067679Y2
JPH067679Y2 JP1987047215U JP4721587U JPH067679Y2 JP H067679 Y2 JPH067679 Y2 JP H067679Y2 JP 1987047215 U JP1987047215 U JP 1987047215U JP 4721587 U JP4721587 U JP 4721587U JP H067679 Y2 JPH067679 Y2 JP H067679Y2
Authority
JP
Japan
Prior art keywords
coil spring
piezoelectric vibrator
contact
power supply
tip
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
JP1987047215U
Other languages
Japanese (ja)
Other versions
JPS63153699U (en
Inventor
庸弘 田中
匠 松田
Original Assignee
株式会社精工舎
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 株式会社精工舎 filed Critical 株式会社精工舎
Priority to JP1987047215U priority Critical patent/JPH067679Y2/en
Priority to GB8806950A priority patent/GB2204444B/en
Priority to US07/174,836 priority patent/US4821257A/en
Priority to KR2019880004308U priority patent/KR910005478Y1/en
Publication of JPS63153699U publication Critical patent/JPS63153699U/ja
Priority to HK822/93A priority patent/HK82293A/en
Application granted granted Critical
Publication of JPH067679Y2 publication Critical patent/JPH067679Y2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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  • Electromechanical Clocks (AREA)
  • Piezo-Electric Transducers For Audible Bands (AREA)

Description

【考案の詳細な説明】 (産業上の利用分野) 本考案は時計のアラーム用のブザーなどに適用される圧
電振動子の給電構造に関するものである。
DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a power supply structure of a piezoelectric vibrator applied to a buzzer for an alarm of a timepiece.

(従来の技術) 従来から時計のブザーに用いられる圧電振動子への給電
構造は、回路基板の所定の回路パターンにコイルバネの
一端が接触し、コイルバネの他端が圧電振動子の圧電素
子の外周辺近くに接触しているものであり、このコイル
バネの形状は、両端面が平坦な同一面的なリング状のも
のであった(特開昭58−102185号公報)。
(Prior Art) Conventionally, a power supply structure for a piezoelectric vibrator used for a buzzer of a timepiece has one end of a coil spring in contact with a predetermined circuit pattern on a circuit board and the other end of the coil spring outside the piezoelectric element of the piezoelectric vibrator. The coil spring is in contact with the vicinity of the periphery, and the shape of this coil spring is a ring-like shape with both end surfaces being flat (Japanese Patent Laid-Open No. 58-102185).

(考案が解決しようとする問題点) ところで圧電振動子を用いたブザーやスピーカにおい
て、振動子の振動を阻害しないようにするためには、振
動子の圧電素子の外周辺近くに接続用のコイルバネを接
触させることが望ましい。
(Problems to be solved by the invention) By the way, in a buzzer or speaker using a piezoelectric vibrator, a coil spring for connection should be provided near the outer periphery of the piezoelectric element of the vibrator in order not to disturb the vibration of the vibrator. Contact is desirable.

しかし上記従来の技術では、コイルバネを圧電素子の外
周近くに接触させようとしても、端面が同一平面的なリ
ング状のコイルバネでは、どうしてもその一部は振動子
の中心寄りになるため、十分な音量を確保することが困
難であった。殊にアラーム付き腕時計のブザーのよう
に、圧電振動子の径が小さくなると、この影響は顕著で
ある。
However, in the above-mentioned conventional technique, even if an attempt is made to bring the coil spring into contact with the vicinity of the outer periphery of the piezoelectric element, a ring-shaped coil spring whose end face is in the same plane inevitably has a part of the ring-shaped coil spring near the center of the vibrator. Was difficult to secure. This effect is remarkable especially when the diameter of the piezoelectric vibrator becomes small, as in the buzzer of a wristwatch with an alarm.

そこで本考案の目的は、給電用のコイルバネの一端が圧
電振動子の外周近くに点接触可能で、音量を十分に確保
できる圧電振動子の給電構造を提供することにある。
Therefore, an object of the present invention is to provide a power supply structure for a piezoelectric vibrator in which one end of a coil spring for power supply can be in point contact with the vicinity of the outer periphery of the piezoelectric vibrator and a sufficient volume can be secured.

(問題点を解決するための手段) 本考案の特徴は、基部が回路基板に接触しているコイル
バネの先端部には、起立接触部が圧電振動子に向けて突
出形成してあり、このコイルバネの位置決め手段は、地
板に一体的に形成された位置決め柱であり、この位置決
め柱の先端面には、上記コイルバネの上記起立接触部が
挿置される割り溝が形成してあるるところにある。
(Means for Solving Problems) A feature of the present invention is that an upright contact portion is formed so as to project toward a piezoelectric vibrator at a tip end portion of a coil spring whose base portion is in contact with a circuit board. The positioning means is a positioning pillar integrally formed with the main plate, and a split groove into which the upright contact portion of the coil spring is inserted is formed in the tip end surface of the positioning pillar. .

(作用) したがってコイルバネの起立接触部は、圧電振動子の圧
電素子の外周部に点接触する。
(Operation) Therefore, the standing contact portion of the coil spring makes point contact with the outer peripheral portion of the piezoelectric element of the piezoelectric vibrator.

(実施例) 以下図面を参照して本考案の実施例を説明する。Embodiment An embodiment of the present invention will be described below with reference to the drawings.

第1図において、腕時計の胴1の背面には裏蓋2が固定
してあり、この裏蓋にはブザーの放音孔2aが開口して
ある。なお放音孔2aの位置は、音響効果を高める上
で、胴1のバンド取付部1aの近傍であって、腕に密接
しない個所であることが望ましい。
In FIG. 1, a back cover 2 is fixed to the back of a wrist 1 of a wristwatch, and a sound emitting hole 2a of a buzzer is opened in this back cover. The position of the sound output hole 2a is preferably near the band mounting portion 1a of the torso 1 and not in contact with the arm in order to enhance the acoustic effect.

放音孔2aの内部は共鳴室3となっており、この共鳴室
内には、圧電振動子4の外周縁が、裏蓋2とホルダー5
の外周部とによって挟持されている。この圧電振動子4
は、振動板41に圧電素子42を貼付して構成されてい
る。
The inside of the sound output hole 2a is a resonance chamber 3, and the outer peripheral edge of the piezoelectric vibrator 4 is inside this resonance chamber.
It is sandwiched by the outer peripheral part of the. This piezoelectric vibrator 4
Is formed by attaching a piezoelectric element 42 to a vibration plate 41.

ホルダー5の後方(第1図右方)には、回路基板6が位
置し、第4図に拡大して図示しているように、この回路
基板に穿設してある透孔には、地板7に一体的に形成さ
れた位置決め柱71が貫通しており、この位置決め柱の
先端は、ホルダー5の透孔5a内に位置している。
A circuit board 6 is located behind the holder 5 (on the right side of FIG. 1), and as shown in an enlarged view of FIG. 4, the through hole formed in the circuit board has a main plate. A positioning pillar 71 formed integrally with the member 7 penetrates through, and the tip of this positioning pillar is located in the through hole 5a of the holder 5.

位置決め柱71の外周に巻回しているコイルバネ8は、
第1図,第3図示のように、その基部8aが回路基板6
の回路パターン6aに接触している。コイルバネ8の先
端部は、第2図,第3図示のように、中心部に延伸して
いる延伸部8bが屈成し、さらにこの延伸部からコイル
バネ8の中心部で、圧電振動子4の方に向けて立ち上げ
られ、起立接触部8cとなっており、そのためこの起立
接触部の先端面は、第4図示のように圧電素子42の外
周部に点接触している。コイルバネ8の位置決め手段で
ある位置決め柱71は、第4図,第5図に示すように、
その先端面に、コイルバネ8の延伸部8bが挿置される
割り溝71aが形成してある。そして割り溝71aは、
第5図示のように圧電素子42の外周辺にほぼ沿ったも
のである。そのためコイルバネ8は、延伸部8bと割り
溝71aの内壁とのクリアランスを小さくすることによ
り、圧電素子42の径方向への移動が防止され、コイル
バネ8に形成された起立接触部8cは圧電振動子4の圧
電素子42の外周部に確実に点接触する。なお第1図に
おいて、地板7には文字板9が固定し、この文字板の前
方には前カバー10がある。
The coil spring 8 wound around the outer circumference of the positioning column 71 is
As shown in FIGS. 1 and 3, the base portion 8a has a circuit board 6
Is in contact with the circuit pattern 6a. As shown in FIGS. 2 and 3, the distal end portion of the coil spring 8 is bent by the extending portion 8b extending to the central portion, and the central portion of the coil spring 8 extends from this extending portion to the piezoelectric vibrator 4's central portion. The standing contact portion 8c is erected toward one side, and the leading end surface of this standing contact portion is in point contact with the outer peripheral portion of the piezoelectric element 42 as shown in FIG. As shown in FIGS. 4 and 5, the positioning pillar 71, which is a positioning means of the coil spring 8, is
A split groove 71a into which the extending portion 8b of the coil spring 8 is inserted is formed on the tip surface thereof. And the split groove 71a is
As shown in FIG. 5, it is substantially along the outer periphery of the piezoelectric element 42. Therefore, in the coil spring 8, the radial movement of the piezoelectric element 42 is prevented by reducing the clearance between the extending portion 8b and the inner wall of the split groove 71a, and the upright contact portion 8c formed in the coil spring 8 has a piezoelectric vibrator. 4 is surely point-contacted with the outer peripheral portion of the piezoelectric element 42. In FIG. 1, a dial 9 is fixed to the main plate 7, and a front cover 10 is provided in front of this dial.

(考案の効果) 以上の構成を有する本考案は、コイルバネの起立した接
触部の先端を圧電素子の外周部に、確実に点接触させる
ことができるため、十分な音圧が確保でき、音量のアッ
プに有効である。
(Effects of the Invention) In the present invention having the above configuration, since the tip of the contact portion where the coil spring stands up can be surely brought into point contact with the outer peripheral portion of the piezoelectric element, a sufficient sound pressure can be secured and the volume It is effective for up.

【図面の簡単な説明】[Brief description of drawings]

第1図は本考案の一実施例の断面図、第2図はコイルバ
ネの平面図、第3図はコイルバネの正面図、第4図は要
部の拡大断面図、第5図は第4図の平面図である。 4……圧電振動子、 41……振動板、 42……圧電素子、 6……回路基板、 7……地板、 71……位置決め手段(位置決め柱)、 71a……割り溝、 8……コイルバネ、 8a……コイルバネの基部、 8c……コイルバネの起立接触部。
FIG. 1 is a sectional view of an embodiment of the present invention, FIG. 2 is a plan view of a coil spring, FIG. 3 is a front view of the coil spring, FIG. 4 is an enlarged sectional view of essential parts, and FIG. 5 is FIG. FIG. 4 ... Piezoelectric vibrator, 41 ... Vibrating plate, 42 ... Piezoelectric element, 6 ... Circuit board, 7 ... Ground plate, 71 ... Positioning means (positioning pillar), 71a ... Split groove, 8 ... Coil spring , 8a ... Base of coil spring, 8c ... Standing contact part of coil spring.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 【請求項1】回路基板と、上記回路基板に基部が接触し
ているコイルバネと、上記コイルバネの先端部が接触し
ている圧電振動子と、上記コイルバネの位置決め手段と
よりなり、 上記コイルバネの先端部には、上記圧電振動子の方に向
けて起立接触部が形成してあり、 上記コイルバネの上記起立接触部の先端は、上記圧電振
動子に点接触しており、 上記コイルバネの位置決め手段は、地板に一体的に形成
された位置決め柱であり、この位置決め柱の先端面に
は、上記コイルバネの上記起立接触部が挿置される割り
溝が形成してある ことを特徴とする圧電振動子の給電構造。
1. A circuit board, a coil spring whose base portion is in contact with the circuit board, a piezoelectric vibrator in which a tip portion of the coil spring is in contact, and a positioning means for the coil spring, the tip of the coil spring. An upright contact portion is formed on the portion toward the piezoelectric vibrator, and a tip of the upright contact portion of the coil spring is in point contact with the piezoelectric vibrator. The piezoelectric vibrator is characterized in that it is a positioning column formed integrally with the main plate, and a split groove into which the upright contact portion of the coil spring is inserted is formed on a tip end surface of the positioning column. Power supply structure.
JP1987047215U 1987-03-30 1987-03-30 Piezoelectric vibrator power supply structure Expired - Lifetime JPH067679Y2 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP1987047215U JPH067679Y2 (en) 1987-03-30 1987-03-30 Piezoelectric vibrator power supply structure
GB8806950A GB2204444B (en) 1987-03-30 1988-03-23 Vibrator assembly
US07/174,836 US4821257A (en) 1987-03-30 1988-03-29 Electricity supply structure for a piezoelectric vibrator
KR2019880004308U KR910005478Y1 (en) 1987-03-30 1988-03-30 Electricity supply structure for a piezoelectric vibrator
HK822/93A HK82293A (en) 1987-03-30 1993-08-12 Vibrator assembly

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1987047215U JPH067679Y2 (en) 1987-03-30 1987-03-30 Piezoelectric vibrator power supply structure

Publications (2)

Publication Number Publication Date
JPS63153699U JPS63153699U (en) 1988-10-07
JPH067679Y2 true JPH067679Y2 (en) 1994-02-23

Family

ID=30867606

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1987047215U Expired - Lifetime JPH067679Y2 (en) 1987-03-30 1987-03-30 Piezoelectric vibrator power supply structure

Country Status (1)

Country Link
JP (1) JPH067679Y2 (en)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54108668U (en) * 1978-01-17 1979-07-31
JPS58102185A (en) * 1981-12-15 1983-06-17 Casio Comput Co Ltd Electronic time piece
JPS6079899U (en) * 1983-11-09 1985-06-03 日本特殊陶業株式会社 piezoelectric buzzer

Also Published As

Publication number Publication date
JPS63153699U (en) 1988-10-07

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