JP2958008B2 - Method of manufacturing piezoelectric buzzer - Google Patents
Method of manufacturing piezoelectric buzzerInfo
- Publication number
- JP2958008B2 JP2958008B2 JP63171574A JP17157488A JP2958008B2 JP 2958008 B2 JP2958008 B2 JP 2958008B2 JP 63171574 A JP63171574 A JP 63171574A JP 17157488 A JP17157488 A JP 17157488A JP 2958008 B2 JP2958008 B2 JP 2958008B2
- Authority
- JP
- Japan
- Prior art keywords
- back cover
- terminal
- metal plate
- case
- cuts
- 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
Links
Description
【発明の詳細な説明】 ［発明の目的］ （産業上の利用分野） 本発明は圧電ブザーの製造方法に関する。DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Field of Industrial Application) The present invention relates to a method for manufacturing a piezoelectric buzzer.
（従来の技術） 本願発明者らは、先に第７図に示すように端子と裏蓋
とを一体成型により成型した裏蓋を用いて製造した圧電
ブザー（図示せず）を提案した（実願昭63−35949）。(Prior Art) The present inventors have previously proposed a piezoelectric buzzer (not shown) manufactured using a back cover formed by integrally molding a terminal and a back cover as shown in FIG. No.63-35949).
同図において、先ず２本の長尺状金属板からなる端子
部材C,Dを平行配置して裏蓋成型用金型（図示せず）内
に入れた状態で所定間隔を置いて前記形状の裏蓋を複数
個（12,12′，…）成型する。その後、各裏蓋12,12′間
に位置する端子部材を切断して個別部品とする。この切
断工程終了後の成型品において、裏蓋12の肉厚部内に植
設され、両側が外部に延在する２本の端子13,14を備え
た成型品が得られる。尚、裏蓋12の底部表裏面には周面
近傍に亘る端子露出用切欠部12E,12Eが設けられてい
る。その後、前記切欠部12Eを境にして、端子部材をそ
れぞれ折曲し端子を形成する。In the figure, first, terminal members C and D made of two long metal plates are arranged in parallel and placed in a back cover molding die (not shown) at predetermined intervals to form the above-mentioned shape. A plurality of back lids (12, 12 ', ...) are molded. Thereafter, the terminal members located between the back lids 12 and 12 'are cut into individual components. In the molded product after the completion of the cutting step, a molded product provided with two terminals 13 and 14 that are implanted in the thick portion of the back cover 12 and that extends on both sides to the outside is obtained. It should be noted that notch portions 12E, 12E for terminal exposure are provided on the front and back surfaces of the bottom of the back cover 12 in the vicinity of the peripheral surface. After that, the terminal members are each bent at the notch 12E to form a terminal.
こうして一体成型された裏蓋12を、放音孔を有し圧電
振動板を載置したケース（図示せず）に取付ける方法に
て圧電ブザーを製造していた。The piezoelectric buzzer was manufactured by attaching the integrally formed back cover 12 to a case (not shown) having a sound emission hole and on which a piezoelectric vibration plate was placed.
（発明が解決しようとする課題） しかしながら、上記構成により先に提案した装置の製
造方法では、裏蓋12と一体成型された端子C1,C2,D1,D2
を折曲する時に折曲部の位置ずれを起すため、位置決め
をして押さえて折曲しなくてはならないので、組立作業
に時間がかかるという問題があった。(Problems to be Solved by the Invention) However, in the manufacturing method of the device previously proposed by the above configuration, the terminals C 1 , C 2 , D 1 , D 2 integrally formed with the back cover 12 are formed.
When bending is performed, the bent portion is displaced, so that it has to be positioned and pressed to be bent, so that there is a problem that it takes time for the assembling operation.
本発明は前記問題点を解決するためになされたもので
あり、折曲部の位置ずれを起さず、端子の折曲が容易に
なり組立作業性の向上を図った圧電ブザーの製造方法を
提供することを目的とするものである。The present invention has been made in order to solve the above-mentioned problems, and a method of manufacturing a piezoelectric buzzer which does not cause a displacement of a bent portion, facilitates bending of a terminal, and improves assembly workability. It is intended to provide.
［発明の構成］ （課題を解決するための手段） 前記課題を解決するために本発明は、放音孔を有する
ケースと、このケース内に支持される圧電振動板と、前
記圧電振動板を支持する裏蓋と、前記裏蓋に支持され一
端が圧電振動板に接触する端子とからなる圧電ブザーの
製造方法において、複数の長尺状金属板からなる端子部
材を平行配置する工程、前記金属板の少なくとも一面に
所定間隔毎に切り込みを設ける工程、前記平行配置され
た端子部材の切り込みを設けた各位置のそれぞれにまた
がるような裏蓋を所定間隔で形成するように前記金属板
とを一体成型する工程、前記工程によって得られた裏蓋
間の端子部材を適宜長さで切断して個別部品を得る工
程、前記切断された端子部材を前記切り込み部分によっ
て折曲する工程とを有することを特徴とするものであ
る。[Structure of the Invention] (Means for Solving the Problems) In order to solve the above problems, the present invention provides a case having a sound emitting hole, a piezoelectric diaphragm supported in the case, and a piezoelectric vibrating plate. In a method of manufacturing a piezoelectric buzzer including a back cover to be supported and a terminal supported by the back cover and having one end in contact with a piezoelectric vibrating plate, a step of arranging a plurality of elongated metal plate terminal members in parallel, A step of providing cuts at predetermined intervals on at least one surface of the plate, and integrating the metal plate so as to form a back cover at predetermined intervals over each of the positions where the cuts of the terminal members arranged in parallel are provided. Molding, cutting the terminal member between the back lids obtained in the above step at an appropriate length to obtain individual parts, and bending the cut terminal member by the cut portions. The one in which the features.
（作 用） 端子部材に凹状切り込みを有するため、裏蓋と端子を
一体成形後、折曲部の位置決めを新たにすることがな
く、前記凹状切り込みにより容易に端子の折曲ができ
る。(Operation) Since the terminal member has the concave cut, the terminal can be easily bent by the concave cut without newly repositioning the bent portion after integrally forming the back cover and the terminal.
（実施例） 以下実施例により本考案を具体的に説明する。(Examples) Hereinafter, the present invention will be specifically described with reference to examples.
第１図は本考案の製造方法により製造された圧電ブザ
ーの一実施例を示す断面図である。この圧電ブザーはケ
ース1,このケース１の開口部に嵌入された裏蓋2,ケース
１内に取付けられた金属板５上に固着された圧電素子６
及び前記裏蓋２に一体成型により植設された２本の端子
3,4とによって構成されている。金属板５と圧電素子６
とによって圧電振動板が構成される。FIG. 1 is a sectional view showing one embodiment of a piezoelectric buzzer manufactured by the manufacturing method of the present invention. The piezoelectric buzzer includes a case 1, a back cover 2 fitted in an opening of the case 1, and a piezoelectric element 6 fixed on a metal plate 5 mounted in the case 1.
And two terminals implanted in the back cover 2 by integral molding
3 and 4. Metal plate 5 and piezoelectric element 6
Thus, a piezoelectric diaphragm is formed.
前記ケース１は有底筒状の合成樹脂材からなり、底面
中央部に放音孔７を有し、内周面に底部側が肉厚とな
り、開口面側が肉薄となる段差面を有し、この段差面に
開口側に向って突出する突出部1Aを有し、さらに開口側
薄肉部に嵌合用凹溝1Bを有している。The case 1 is made of a bottomed tubular synthetic resin material, has a sound emission hole 7 in the center of the bottom surface, and has a stepped surface on the inner peripheral surface where the bottom is thick and the opening is thin. The step surface has a protruding portion 1A protruding toward the opening side, and further has a fitting concave groove 1B in the opening side thin portion.
前記裏蓋２は椀状の合成樹脂材からなり、外周面に前
記ケースの嵌合用凹溝1Bに嵌合可能な嵌合用突部2Aを有
し、開口端縁に突出部2Bを有している。この裏蓋２には
金属製の端子3,4が一体成型により植設されている。こ
の各端子3,4は外方突出側が直線状となり、裏蓋開口面
側が後述する金属板５や圧電素子６の電極に圧接される
ように折曲された弾性接触端3A,4Aとなっており、この
弾性接触端3A,4Aの先端には接触用突部3B,4Bが形成され
ている。この実施例における端子は、裏蓋２内部で２つ
の折曲部4C,4Dを有している。また、端子３についても
同様の２つの折曲部3C,3D（第３図（ｃ）参照）を有し
ている。The back cover 2 is made of a bowl-shaped synthetic resin material, and has a fitting protrusion 2A that can be fitted into the fitting groove 1B of the case on the outer peripheral surface, and has a protrusion 2B at an opening edge. I have. Metal terminals 3 and 4 are implanted in the back cover 2 by integral molding. Each of the terminals 3 and 4 has an outwardly projecting side formed into a straight line, and the back cover opening surface side serves as elastic contact ends 3A and 4A which are bent so as to be pressed against electrodes of a metal plate 5 and a piezoelectric element 6 described later. In addition, contact protrusions 3B and 4B are formed at the tips of the elastic contact ends 3A and 4A. The terminal in this embodiment has two bent portions 4C and 4D inside the back cover 2. The terminal 3 also has the same two bent portions 3C and 3D (see FIG. 3 (c)).
前記圧電素子６を固着した金属板５は、圧電素子６側
をケース１の開口面側に向けた状態でケース内部の段差
突出部1A上に載置され、裏蓋２をケース１の開口面側か
ら挿入してそれぞれの嵌合用凹溝1B及び嵌合用突部2Aを
介して嵌合させたときの開口縁突出部2Bとの間に挾持さ
れるようになっている。このようにして金属板５はケー
ス１と裏蓋２の各突出部1A,2B間に線接触支持されるよ
うになる。The metal plate 5 to which the piezoelectric element 6 is fixed is placed on the step protrusion 1A inside the case with the piezoelectric element 6 side facing the opening side of the case 1, and the back cover 2 is attached to the opening surface of the case 1. Inserted from the side, it is to be clamped between the fitting concave groove 1B and the opening edge protrusion 2B when fitted through the fitting protrusion 2A. In this manner, the metal plate 5 is supported in line contact between the case 1 and the protruding portions 1A, 2B of the back cover 2.
次に第２図乃至第６図を参照して上記圧電ブザーの製
造方法の一例について説明する。Next, an example of a method for manufacturing the piezoelectric buzzer will be described with reference to FIGS.
先ず第３図を参照して裏蓋２と端子3,4との一体成型
品を得る場合を説明する。First, a case of obtaining an integrally molded product of the back cover 2 and the terminals 3 and 4 will be described with reference to FIG.
第３図（Ａ）に示すように予め端子部材A,Bに前記折
曲部3C,3D,4C,4Dを形成するための凹状の切り込み3E,3
F,4E,4Fを、また前記切り込み3E,3Fの中間に位置ずれ防
止の凹状切り込み3Gを、同様に切り込み4E,4Fの中間に
切り込み4Gを入れた長尺状金属板から成る端子部材A,B
を作る。この凹状切り込み3E,3F,4E,4Fは第４図
（Ａ），（Ｂ）に示したように厚さＴを有する端子部材
A,Bに折曲方向と同一方向の表面上に凹状に成るように
形成され、切り込み3G,4Gは切り込み3F,4Fと同一方向に
形成され且つ裏蓋を成型する個数分，前記端子部材A,B
に形成される。As shown in FIG. 3 (A), concave cuts 3E, 3 for forming the bent portions 3C, 3D, 4C, 4D in the terminal members A, B in advance.
F, 4E, 4F, and a notch 3G for preventing misalignment in the middle of the cuts 3E, 3F, a terminal member A made of a long metal plate similarly having a cut 4G in the middle of the cuts 4E, 4F. B
make. These concave cuts 3E, 3F, 4E and 4F are terminal members having a thickness T as shown in FIGS. 4 (A) and 4 (B).
The terminal members A are formed in A and B so as to be concave on the surface in the same direction as the bending direction, and the cuts 3G and 4G are formed in the same direction as the cuts 3F and 4F and the same number as the number of molding the back cover. , B
Formed.
第３図（Ｂ）はインジェクション成型により裏蓋２を
成型した状態を示す平面図であり、成型順序は、先ず前
記端子部材A,Bを水平方向に平行載置して裏蓋成型用金
型（図示せず）内に入れた状態で水平方向に沿って所定
間隔を置いて前記形状の裏蓋を複数個（2,2′…）成型
する。その後、各裏蓋2,2′間に位置する端子部材を切
断して個別部品とするこの切断工程終了後の成型品にお
いて、裏蓋２の肉厚部内に植設され、両側が外部に延在
する２本の端子3,4を供えた成型品が得られる。尚、裏
蓋２の底部表裏面には周面近傍に亘る端子露出用切欠部
2D,2Dが設けられ且つ、前記凹状切り込み3E,3F,4E,4Fが
植設しないように設けられている。これは次工程で前記
切り込み3E,3F,4E,4Fによる端子折曲加工を容易にする
ためのものである。この折曲部の深さは裏蓋底板の表面
（又は裏面）から端子埋込み部分までであり、底板を貫
通するものであってはならない。FIG. 3 (B) is a plan view showing a state in which the back cover 2 is formed by injection molding. The molding order is as follows. (2, 2 '...) Are formed at predetermined intervals along the horizontal direction in a state of being placed in the inside (not shown). After that, in the molded product after the completion of the cutting step, the terminal member located between the respective back lids 2 and 2 'is cut into individual parts, the molded parts are planted in the thick portion of the back lid 2, and both sides extend to the outside. A molded product provided with two existing terminals 3 and 4 is obtained. A notch for exposing a terminal is provided on the front and back surfaces of the bottom of the back cover 2 around the peripheral surface.
2D, 2D are provided, and the concave cuts 3E, 3F, 4E, 4F are provided so as not to be implanted. This is for facilitating terminal bending by the cuts 3E, 3F, 4E and 4F in the next step. The depth of the bent portion is from the surface (or the back surface) of the back cover bottom plate to the terminal embedding portion, and must not penetrate the bottom plate.
また、前記位置ずれ防止凹状切り込み3G,4Gは裏蓋２
内に植設される。In addition, the concave notches 3G and 4G for preventing displacement are provided on the back cover 2.
It is planted in.
次に第３図（Ｃ）に示すように、端子３の突出側のう
ち一方A1側を前記切欠部を境にして裏蓋２の椀状突部2B
側へ前記凹状切り込み3FによってＶ字状に折曲（3D）し
てその先端が中心線上になるように加工し、他方の突出
側A2を同じく前記切欠部を境にして反対面に90゜の角度
で前記凹状切り込み3Eによって折曲（3C）する。折曲端
のうち図示上端部3Aが圧電素子接触端となり、反対側が
直交突出端側となる。Next, as shown in FIG. 3 (C), bowl-shaped projection 2B of the back cover 2 by the other hand A 1 side of the protruding side of the terminal 3 the boundary of the cut-out portion
By bending (3D) in a V-shape by 3F cut the concave to the side is processed so that its leading end is on the center line, 90 ° on the opposite side of the other protruding side A 2 also in the border the cut-out portion Is bent (3C) by the concave cut 3E at an angle of. Of the bent ends, the upper end 3A shown in the figure is the piezoelectric element contact end, and the opposite side is the orthogonally projecting end side.
前記同様に端子４についても第３図（Ｄ）に示すよう
に凹状切り込み4E,4Fによって２個所の折曲部4C,4Dを形
成するように加工して金属板接触端4A及び直立突出端を
形成する。Similarly, as shown in FIG. 3 (D), the terminal 4 is processed so as to form two bent portions 4C and 4D by the concave cuts 4E and 4F, and the metal plate contact end 4A and the upright protruding end are formed. Form.
尚、接触用曲面は前記第３図（Ｂ）の工程時に切断さ
れる部分を考慮してプレス等により形成しておけばよ
い。The curved surface for contact may be formed by a press or the like in consideration of a portion to be cut in the step of FIG. 3 (B).
そして、第２図に示すように、上記同様にインジェク
ション成型により、底面中央部放音孔７を有し、内周面
下部に段差突出部1Aを、上部に嵌合用凹溝1Bを備えたケ
ース１形成する。また、金属板５上に圧電素子６を嫌気
性接着剤等を用いて接着する。As shown in FIG. 2, a case having a sound emitting hole 7 at the bottom center, a step projection 1A at the lower portion of the inner peripheral surface, and a fitting groove 1B at the upper portion as shown in FIG. 1 is formed. Further, the piezoelectric element 6 is bonded onto the metal plate 5 using an anaerobic adhesive or the like.
しかる後、ケース１の内部段差突出部1A上に圧電素子
６を固着した金属板５を載置し、ケース１の開口面側か
ら前記裏蓋２を圧力を加えて押し込むことよりケース１
の嵌合用凹溝1B内に裏蓋２の嵌合用突部2Aが密着嵌合さ
れ両者が気密に組合される。このとき、金属板５の外周
面はケース１の段差突部1Aと裏蓋２の突部2Bとの間で線
接触状態で挾持されることになる。Thereafter, the metal plate 5 to which the piezoelectric element 6 is fixed is placed on the internal step protrusion 1A of the case 1, and the back cover 2 is pressed from the opening side of the case 1 by applying pressure.
The fitting projection 2A of the back cover 2 is tightly fitted into the fitting concave groove 1B, and the two are airtightly combined. At this time, the outer peripheral surface of the metal plate 5 is held in a line contact state between the step projection 1A of the case 1 and the projection 2B of the back cover 2.
また、各端子3,4の取付け状態は第２図の正面から見
た状態の裏蓋２における中心線に対して偏心させている
から両者の関係は第５図の3,4の状態となり、圧電素子
６及び金属板５との間の接触状態は第６図に示すように
一方の端子３の先端は圧電素子６のみに接触し、他方の
端子４の先端は金属板５のみに接触することになる。
（図においてハッチング部分が接触面）。Further, since the mounting state of each terminal 3, 4 is eccentric with respect to the center line of the back cover 2 as viewed from the front in FIG. 2, the relationship between the two becomes the state of 3, 4 in FIG. As shown in FIG. 6, the contact state between the piezoelectric element 6 and the metal plate 5 is such that the tip of one terminal 3 contacts only the piezoelectric element 6 and the tip of the other terminal 4 contacts only the metal plate 5. Will be.
(The hatched portion in the figure is the contact surface).
以上の実施例では、裏蓋と端子とを一対成型により形
成する際に、端子部材の端子を形成するための折曲部3
C,3C,4D,4Dに凹状の切り込み3E,3F,4E,4Fを設けること
により、端子の折曲が容易になる。また、位置ずれ防止
凹状切り込み3G,4Gが裏蓋２内に植設されるため位置ず
れも無くなる。さらに、位置ずれ防止凹状切り込みは、
複数個設けてもよく、設置方向も限定されるものではな
い。また、本実施例においては端子が２個のものについ
て提案したが、圧電ブザーの用途により端子の本数が増
えた場合も同様に本実施例が適用されることは言うまで
もない。In the above embodiment, when the back cover and the terminal are formed by pair molding, the bent portion 3 for forming the terminal of the terminal member is formed.
By providing concave cuts 3E, 3F, 4E, and 4F in C, 3C, 4D, and 4D, the terminal can be easily bent. Further, since the positional deviation preventing concave cuts 3G and 4G are implanted in the back cover 2, there is no positional deviation. In addition, the concave notch to prevent misalignment
A plurality may be provided, and the installation direction is not limited. In this embodiment, two terminals are proposed. However, it is needless to say that the present embodiment is similarly applied to a case where the number of terminals is increased due to the use of the piezoelectric buzzer.
［発明の効果］ 以上詳述した本発明によれば、端子と裏蓋を一体成型
により形成する製造方法において、端子部材の端子を形
成するための折曲部とその折曲部との中間に予め切り込
みを入れる工程を設けたことにより、裏蓋成型後に新た
に位置決めし押さえることをせずに、容易に端子の折曲
ができるという効果がある。それによって、組立作業性
が向上した圧電ブザーの製造方法が得られる。[Effects of the Invention] According to the present invention described in detail above, in the manufacturing method of integrally forming the terminal and the back cover, a bent portion for forming the terminal of the terminal member is provided between the bent portion and the bent portion. The provision of the step of making a cut in advance has an effect that the terminal can be easily bent without newly positioning and pressing after the molding of the back cover. Thereby, a method of manufacturing a piezoelectric buzzer with improved assembling workability is obtained.
第１図は本発明の方法によって得られた圧電ブザーの断
面図、第２図は上記装置の分解斜視図、第３図は端子と
裏蓋との一体成型する製造方法を説明するための概略図
であって同図（Ａ）は端子平面図、同図（Ｂ）は端子と
裏蓋とを一体成型した平面図、同図（Ｃ），（Ｄ）は端
子の折曲方法を示す概略図、第４図（Ａ），（Ｂ）は切
り込みを形成した端子部材の断面図、第５図は端子の配
置を示す斜視図、第６図は端子と圧電素子との接触状態
を示す平面図、第７図は先の提案の端子と裏蓋とを一体
成型する製造方法を説明するための平面図である。 １……ケース、２……裏蓋、3,4……端子、 3C,3C,4D,4D……折曲部、 3E,3F,3G,4E,4F,4G……凹状切り込み、 ５……金属板、６……圧電素子、７……放音孔。FIG. 1 is a cross-sectional view of a piezoelectric buzzer obtained by the method of the present invention, FIG. 2 is an exploded perspective view of the above device, and FIG. 3 is a schematic diagram for explaining a manufacturing method of integrally molding a terminal and a back cover. 5A is a plan view of a terminal, FIG. 5B is a plan view of the terminal and a back cover integrally molded, and FIGS. 5C and 5D are schematic diagrams showing a method of bending the terminal. FIGS. 4 (A) and 4 (B) are cross-sectional views of the terminal member having cuts, FIG. 5 is a perspective view showing the arrangement of the terminals, and FIG. 6 is a plan view showing the contact state between the terminals and the piezoelectric element. FIG. 7 is a plan view for explaining a manufacturing method for integrally molding the terminal and the back cover proposed earlier. 1 ... Case, 2 ... Back cover, 3,4 ... Terminal, 3C, 3C, 4D, 4D ... Bend, 3E, 3F, 3G, 4E, 4F, 4G ... Recessed cut, 5 ... Metal plate, 6: piezoelectric element, 7: sound emission hole.
フロントページの続き (72)発明者 阿部 利男 東京都中央区日本橋１丁目13番１号 テ ィーディーケイ株式会社内 (72)発明者 高橋 清一 東京都中央区日本橋１丁目13番１号 テ ィーディーケイ株式会社内 (56)参考文献 特開 平２−135498（ＪＰ，Ａ) 実開 昭62−155598（ＪＰ，Ｕ) 実開 昭56−119665（ＪＰ，Ｕ) 実開 昭63−15577（ＪＰ，Ｕ) (58)調査した分野(Int.Cl.6，ＤＢ名) G10K 9/12 G10K 9/18 G10K 9/22 Continued on the front page (72) Inventor Toshio Abe 1-13-1 Nihonbashi, Chuo-ku, Tokyo TDK Corporation (72) Inventor Seiichi Takahashi 1-13-1 Nihonbashi, Chuo-ku, Tokyo TDK Corporation (56) References JP-A-2-135498 (JP, A) JP-A 62-155598 (JP, U) JP-A 56-119665 (JP, U) JP-A 63-15577 (JP, U) (58) Field surveyed (Int.Cl. 6 , DB name) G10K 9/12 G10K 9/18 G10K 9/22
Claims (1)
支持される圧電振動板と、 前記圧電振動板を支持する裏蓋と、前記裏蓋に支持され
一端が圧電振動板に接触する端子とからなる圧電ブザー
の製造方法において、 複数の長尺状金属板からなる端子部材を平行配置する工
程、 前記金属板の少なくとも一面に所定間隔毎に切り込みを
設ける工程、 前記平行配置された端子部材の切り込みを設けた各位置
のそれぞれにまたがるような裏蓋を所定間隔で形成する
ように前記金属板とを一体成型する工程、 前記工程によって得られた裏蓋間の端子部材を適宜長さ
で切断して個別部品を得る工程、 前記切断された端子部材を前記切り込み部分によって折
曲する工程 とを有することを特徴とする圧電ブザーの製造方法。1. A case having a sound emitting hole, a piezoelectric vibrating plate supported in the case, a back cover for supporting the piezoelectric vibrating plate, and one end supported by the back cover and in contact with the piezoelectric vibrating plate. In the method for manufacturing a piezoelectric buzzer including terminals, a step of arranging a plurality of long metal plate terminal members in parallel, a step of providing cuts at predetermined intervals on at least one surface of the metal plate, and the terminals arranged in parallel A step of integrally molding the metal plate so as to form a back cover at predetermined intervals so as to extend over each of the positions where the cuts of the member are provided, and appropriately lengthen the terminal members between the back covers obtained in the step. And a step of bending the cut terminal member by the cut portion to obtain an individual component.
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63171574A JP2958008B2 (en) | 1988-07-08 | 1988-07-08 | Method of manufacturing piezoelectric buzzer |
| DE68919100T DE68919100T2 (en) | 1988-03-17 | 1989-03-10 | Piezoelectric buzzer and process for its production. |
| EP89104259A EP0333055B1 (en) | 1988-03-17 | 1989-03-10 | Piezoelectric buzzer and a method of manufacturing the same |
| US07/322,580 US4965483A (en) | 1988-03-17 | 1989-03-13 | Piezoelectric buzzer |
| CA000593791A CA1339427C (en) | 1988-03-17 | 1989-03-15 | Piezoelectric buzzer and a method of manufacturing the same |
| US07/430,565 US4989302A (en) | 1988-03-17 | 1989-11-01 | Method for manufacturing piezoelectric buzzer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63171574A JP2958008B2 (en) | 1988-07-08 | 1988-07-08 | Method of manufacturing piezoelectric buzzer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0222698A JPH0222698A (en) | 1990-01-25 |
| JP2958008B2 true JP2958008B2 (en) | 1999-10-06 |
Family
ID=15925673
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63171574A Expired - Lifetime JP2958008B2 (en) | 1988-03-17 | 1988-07-08 | Method of manufacturing piezoelectric buzzer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2958008B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7064824B2 (en) | 2014-02-27 | 2022-05-11 | エクソトー エルエルシー | Bone adhesion / fixation devices and related systems and methods |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000082522A (en) * | 1998-09-08 | 2000-03-21 | Smk Corp | Connector for connecting electronic parts |
| KR101196493B1 (en) * | 2009-06-28 | 2012-11-01 | 발뮤다 가부시키가이샤 | Axial fan |
-
1988
- 1988-07-08 JP JP63171574A patent/JP2958008B2/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7064824B2 (en) | 2014-02-27 | 2022-05-11 | エクソトー エルエルシー | Bone adhesion / fixation devices and related systems and methods |
| US11660131B2 (en) | 2014-02-27 | 2023-05-30 | Exotoe Llc | Bone fusion/fixation device and related systems and methods |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0222698A (en) | 1990-01-25 |
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