JPS6210800Y2 - - Google Patents
Info
- Publication number
- JPS6210800Y2 JPS6210800Y2 JP580778U JP580778U JPS6210800Y2 JP S6210800 Y2 JPS6210800 Y2 JP S6210800Y2 JP 580778 U JP580778 U JP 580778U JP 580778 U JP580778 U JP 580778U JP S6210800 Y2 JPS6210800 Y2 JP S6210800Y2
- Authority
- JP
- Japan
- Prior art keywords
- case
- press
- side wall
- female
- male
- 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
Links
- 230000002093 peripheral effect Effects 0.000 description 7
- 229910001369 Brass Inorganic materials 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
Landscapes
- Piezo-Electric Transducers For Audible Bands (AREA)
Description
【考案の詳細な説明】
本考案は、圧電素子や電磁的装置によつて駆動
される振動板の周辺部を挾持する電子ブザー用ケ
ースの構造に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to the structure of a case for an electronic buzzer that holds the periphery of a diaphragm driven by a piezoelectric element or an electromagnetic device.
従来より振動板の周辺部を、互いに圧入される
１対のケースによつて挾持したものは公知であ
る。 Conventionally, it is known that the peripheral portion of a diaphragm is held between a pair of cases that are press-fitted into each other.
そこでこの一従来構成について第１図を参照し
て説明すると、１および２は互いに圧入によつて
結合される雌側ケースおよび雄側ケースである。 This conventional structure will be described with reference to FIG. 1. Reference numerals 1 and 2 denote a female case and a male case that are connected to each other by press fitting.
雌側ケース１は、その側壁３の開口内周部に所
定寸法の穴部４と、この穴部の底部から内側に突
出しかつ振動板５の外周部が載置可能な挾持部６
とが形成されている。またこの例では圧入を容易
にするために、穴部４の上端部がテーパ面７に形
成され、穴部４に対して若干拡開している。この
雌側ケース１と対をなす雄側ケース２は、その側
壁８の外周面９はストレートに形成されている。
勿論、外周面９の寸法は穴部４に対して所定の圧
入公差だけ僅かに大きくなつている。側壁８の下
面は、挾持部６と対向する挾持面１０であり、ケ
ース１，２の圧入係止状態において両挾持部６，
１０間で振動板５の外周部を挾持固定する。なお
１１は振動板５に貼着した圧電素子である。 The female case 1 has a hole 4 of a predetermined size at the inner periphery of the opening of the side wall 3, and a clamp 6 that protrudes inward from the bottom of the hole and on which the outer periphery of the diaphragm 5 can be placed.
is formed. Further, in this example, in order to facilitate press-fitting, the upper end of the hole 4 is formed into a tapered surface 7, which is slightly expanded relative to the hole 4. The male case 2, which is paired with the female case 1, has an outer peripheral surface 9 of a side wall 8 formed straight.
Of course, the dimensions of the outer circumferential surface 9 are slightly larger than those of the hole 4 by a predetermined press-fitting tolerance. The lower surface of the side wall 8 is a clamping surface 10 that faces the clamping part 6, and when the cases 1 and 2 are press-fitted and locked, both clamping parts 6,
The outer periphery of the diaphragm 5 is clamped and fixed between 10 mm. Note that 11 is a piezoelectric element attached to the diaphragm 5.
ところで両ケース１，２を圧入するには、まず
ケース１の開口部を上にして治具１２にセツト
し、つぎにケース２の開口部を下にしてケース１
に投入する。そしてケース２をプレス装置（図示
せず。）により下方に押圧する。ところが上記構
成のケース１，２によると、ケース２をケース１
に投入したときに鎖線図示ように傾くことがあ
り、この状態のまま圧入作業を続行すると圧入不
良が生じたり、圧入の負荷が大きくなる。このた
めケース２がケース１に対してほぼ平行になるよ
うに手で修正する必要があり、圧入作業が面倒で
かつ危険が伴うなどの欠点があつた。さらにケー
ス２がケース１に圧入されるときに、側壁８の外
周面９が上方に応力を受け、挾持部１０の外周部
が捲れ上がつて挾持部１０の平坦度が損われ、振
動板５の周辺固定状態が不良となることもあつ
た。 By the way, in order to press-fit both cases 1 and 2, first set case 1 on jig 12 with the opening facing up, then set case 1 with the opening of case 2 facing down.
put it into. Then, the case 2 is pressed downward by a press device (not shown). However, according to cases 1 and 2 with the above configuration, case 2 is replaced by case 1.
If the press-fitting operation is continued in this state, a press-fitting failure may occur or the press-fitting load will increase. Therefore, it is necessary to manually adjust the case 2 so that it is almost parallel to the case 1, which has the drawback that the press-fitting operation is troublesome and dangerous. Further, when the case 2 is press-fitted into the case 1, the outer peripheral surface 9 of the side wall 8 is subjected to upward stress, the outer peripheral part of the clamping part 10 is rolled up, the flatness of the clamping part 10 is impaired, and the diaphragm 5 In some cases, the fixation of the surrounding area was poor.
本考案は前記従来の欠点を解消した電子ブザー
用ケースについて提案するものであり、以下その
一実施例について説明する。第２図において、１
３および１４は互いに圧入される有底筒状の雌側
ケースおよび有底筒状の雄側ケースであつて、共
に黄銅などの金属材料にて形成したものである。 The present invention proposes an electronic buzzer case that eliminates the above-mentioned conventional drawbacks, and one embodiment thereof will be described below. In Figure 2, 1
Reference numerals 3 and 14 denote a bottomed cylindrical female case and a bottomed cylindrical male case that are press-fitted into each other, and are both made of a metal material such as brass.
雌側ケース１３の底部１５の中央に放音孔１６
が穿設してある。また側壁１７の内周開口側に所
定寸法のストレート状穴部１８が形成してあり、
さらに保持部１９がこの穴部の底部から内側に突
出形成してある。２０は、圧電素子２１を貼着し
た円形の振動板であつて、その外周部が保持部１
９上に載置される。振動板２０の大きさについて
述べると、本実施例は外径が12.7mm、厚さが50μ
ｍである。つぎに雌側ケース１３と対をなす雄側
ケース１４について説明すると、底部２２の中央
部に小孔２３が穿設されている。この小孔２３
は、圧電素子２１に接続したリード線（図示せ
ず。）を挿通するためのものである。また雄側ケ
ース１４は、側壁２４の外周開口側に環体部２５
が形成してあり、その上部が圧入係止部２６とな
つている。環体部２５の外径は、雌側ケース１３
の穴部１８の内径よりも僅かに小さく、また圧入
係止部２６の外径は穴部１８の内径よりも所定の
圧入交差だけ僅かに大きいものである。 A sound emitting hole 16 is provided in the center of the bottom 15 of the female case 13.
is drilled there. Further, a straight hole 18 of a predetermined size is formed on the inner peripheral opening side of the side wall 17.
Further, a holding portion 19 is formed to protrude inward from the bottom of this hole. 20 is a circular diaphragm to which a piezoelectric element 21 is attached, the outer periphery of which is attached to the holding part 1.
9. Regarding the size of the diaphragm 20, in this embodiment, the outer diameter is 12.7 mm and the thickness is 50 μm.
It is m. Next, the male case 14 paired with the female case 13 will be described. A small hole 23 is bored in the center of the bottom 22. This small hole 23
is for inserting a lead wire (not shown) connected to the piezoelectric element 21. The male case 14 also has a ring body portion 25 on the outer peripheral opening side of the side wall 24.
is formed, the upper part of which serves as a press-fit locking portion 26. The outer diameter of the ring portion 25 is the same as that of the female case 13.
The outer diameter of the press-fit locking portion 26 is slightly larger than the inner diameter of the hole 18 by a predetermined press-fit intersection.
具体的に本実施例の寸法を述べると、穴部１８
の内径は12.8＋０．０６ ＋０mmであり、環体部２５の外
径は
12.8−０．０２ −０．０４mmであり、圧入係止部２６の
外径は
12.8＋０．０６ ＋０．０４mmである。また環体部２５と
圧入係止部
１６間の段差部は圧入を容易にする目的でテーパ
面２７に形成してある。環体部２５の下端面２８
は、穴側ケース１３の保持部１９の上端面と対向
し、ケース１３，１４が一体に圧入結合した状態
において、両端面間で振動板２０の外周部が挾持
固定される。 Specifically describing the dimensions of this embodiment, the hole 18
The inner diameter of is 12.8 +0 . 06 +0 mm, and the outer diameter of the ring portion 25 is
12.8 -0 . 02-0 . 04 mm, and the outer diameter of the press-fit locking part 26 is
12.8 +0 . 06 +0 . 04 mm. Further, the stepped portion between the ring body portion 25 and the press-fit locking portion 16 is formed into a tapered surface 27 for the purpose of facilitating press-fitting. Lower end surface 28 of ring body portion 25
faces the upper end surface of the holding portion 19 of the hole-side case 13, and in a state where the cases 13 and 14 are press-fitted together, the outer peripheral portion of the diaphragm 20 is clamped and fixed between both end surfaces.
雌側ケース１３および雄側ケース１４が上軌構
成であるため、圧入に際して雄側ケース１４を雌
側ケース１３に投入したとき、環体部２５が穴部
１８に対して極めて微小な間隙をもつてゆるく嵌
合し、環体部２５がガイドとなつて雄側ケース１
４は雌側ケース１３に対して第２図鎖線図示のよ
うにほぼ平行な姿勢に保たれる。したがつてプレ
ス装置等による雄側ケース１４の押圧降下が円滑
に行なえ、圧入不良等を生じることがない。また
環体部２５の外周面は、穴部１８に対して微小な
クリアランスがあるために、その下面の高精度な
平坦面に加工してある端面２８が圧入時の応力に
よつて変形することがない。したがつて振動板２
０の外周固定が全周に亘つて均等かつ確実に行な
われる。 Since the female side case 13 and the male side case 14 have an upper track configuration, when the male side case 14 is inserted into the female side case 13 during press fitting, the annular body part 25 has an extremely small gap with respect to the hole part 18. The male case 1 is fitted loosely with the ring body 25 acting as a guide.
4 is maintained in a substantially parallel posture with respect to the female case 13 as shown by the chain line in FIG. Therefore, the male case 14 can be pressed and lowered smoothly using a press device or the like, and no press-fitting defects or the like occur. Furthermore, since the outer circumferential surface of the annular body portion 25 has a minute clearance with respect to the hole portion 18, the end surface 28, which is machined into a highly accurate flat surface on the lower surface, may be deformed by stress during press-fitting. There is no. Therefore, the diaphragm 2
The outer periphery of 0 is fixed evenly and reliably over the entire periphery.
なお振動板２０の駆動は圧電素子２１に限るも
のではなく、例えば周知の電磁的装置に行なつて
もよい。 Note that the driving of the diaphragm 20 is not limited to the piezoelectric element 21, and may be performed by, for example, a well-known electromagnetic device.
以上のように本考案によれば、圧入結合部と挾
持部とを分担させたから、振動板の外周固定を行
なう挾持部が圧入応力によつて変形されることが
なく、したがつて挾持部が初期の加工精度に保た
れ、振動板の外周固定状態を全周に亘つて均等か
つ確実に行なうことができる。それ故に音質、音
量のバラツキが少なくなり、品質が安定する。ま
た雄側ケースを雌側ケースに対して投入する際
に、環体部がガイドとなつて雄側ケースが雌側ケ
ースに平行な姿勢に保持されるので、従来のよう
に姿勢を手で修正する必要がなく、圧入作業が安
全かつ容易に行なえ雄側ケースの押圧移動も円滑
に進行し、圧入負荷が変動することがないなど、
実用上の効果は極めて甚大である。 As described above, according to the present invention, since the press-fit joint part and the clamping part are shared, the clamping part that fixes the outer periphery of the diaphragm is not deformed by press-fitting stress, and therefore the clamping part is The initial machining accuracy is maintained, and the outer periphery of the diaphragm can be fixed evenly and reliably over the entire periphery. Therefore, variations in sound quality and volume are reduced, and the quality is stable. In addition, when inserting the male case into the female case, the ring body acts as a guide to hold the male case parallel to the female case, so you can manually correct the position like in the past. The press-fitting work can be performed safely and easily, the pressing movement of the male side case proceeds smoothly, and the press-fitting load does not fluctuate.
The practical effects are extremely significant.
第１図は従来構成を示す展開断面図、第２図は
本考案の一実施例を示す展開断面図である。
１３……雌側ケース、１４……雄側ケース、１
５……底部、１７……側壁、１８……穴部、１９
……保持部、２０……振動板、２２……底部、２
４……側壁、２５……環体部、２６……圧入係止
部。
FIG. 1 is a developed sectional view showing a conventional configuration, and FIG. 2 is a developed sectional view showing an embodiment of the present invention. 13... Female side case, 14... Male side case, 1
5... Bottom, 17... Side wall, 18... Hole, 19
... Holding part, 20 ... Vibration plate, 22 ... Bottom part, 2
4... Side wall, 25... Annular body part, 26... Press-fit locking part.
Claims (1)
の雌側ケースと雄側ケースとからなり、 前記雌側ケースは、圧入結合を受けもつ側壁内
周面の奥方に、内方へ環状に突出して振動板の外
周部を保持する保持部を有し、 前記雄側ケースは、前記雌側ケースの側壁内周
面に圧入結合される側壁外周面と、この側壁の先
端部に設けられて前記雌側ケースの側壁内周面に
微小クリアランスをもつて遊合対向する環体部と
を有し、 前記環体部の端面と前記保持部の端面とで前記
振動板の外周部を挾持するようにした 電子ブザー用ケース。[Claims for Utility Model Registration] Consisting of a bottomed cylindrical female case and a male case that are integrally connected to each other by press-fitting, the female case has an inner circumferential surface of a side wall that receives the press-fit connection. The male side case has a side wall outer circumferential surface that is press-fitted to the side wall inner circumferential surface of the female side case; an annular body provided at the tip of the side wall and loosely opposed to the inner circumferential surface of the side wall of the female side case with a minute clearance; the end face of the annular body and the end face of the holding part An electronic buzzer case that holds the outer periphery of the diaphragm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP580778U JPS6210800Y2 (en) | 1978-01-20 | 1978-01-20 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP580778U JPS6210800Y2 (en) | 1978-01-20 | 1978-01-20 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS54110081U JPS54110081U (en) | 1979-08-02 |
| JPS6210800Y2 true JPS6210800Y2 (en) | 1987-03-13 |
Family
ID=28812011
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP580778U Expired JPS6210800Y2 (en) | 1978-01-20 | 1978-01-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6210800Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2728622B2 (en) * | 1993-05-04 | 1998-03-18 | スター精密株式会社 | Electroacoustic transducer |
-
1978
- 1978-01-20 JP JP580778U patent/JPS6210800Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS54110081U (en) | 1979-08-02 |
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