JP2600099Y2 - Antistatic shield structure of electronic watch - Google Patents
Antistatic shield structure of electronic watchInfo
- Publication number
- JP2600099Y2 JP2600099Y2 JP7816992U JP7816992U JP2600099Y2 JP 2600099 Y2 JP2600099 Y2 JP 2600099Y2 JP 7816992 U JP7816992 U JP 7816992U JP 7816992 U JP7816992 U JP 7816992U JP 2600099 Y2 JP2600099 Y2 JP 2600099Y2
- Authority
- JP
- Japan
- Prior art keywords
- plate
- battery
- base plate
- shield structure
- back plate
- 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 - Fee Related
Links
Landscapes
- Electric Clocks (AREA)
- Electromechanical Clocks (AREA)
- Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
Description
【0001】[0001]
【産業上の利用分野】本考案は電子腕時計の静電シール
ド構造に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electrostatic shield structure of an electronic wristwatch.
【0002】[0002]
【従来の技術】最近の腕時計は、プラスチックの地板及
び受で構成したムーブメントを、プラスチックの外装に
収納することにより、低価格やデザインの多様化に対応
するものが増えてきた。ところで、プラスチックの地板
や受で構成されたムーブメントでは、回路ブロックに載
置されているICがプラスチック部品に囲まれた構造と
なっている。このため、これらのプラスチック部品に静
電気が帯電しやすい。さらにプラスチックの外装を使用
したものでは、地板や受ばかりでなく外装にも帯電す
る。2. Description of the Related Art In recent wrist watches, a movement which is constituted by a plastic base plate and a receiver is accommodated in a plastic exterior, thereby increasing the number of wrist watches which can cope with low prices and diversification of designs. By the way, in a movement composed of a plastic base plate and a receiver, an IC mounted on a circuit block has a structure surrounded by plastic parts. For this reason, these plastic parts are easily charged with static electricity. Further, in the case of using a plastic exterior, not only the base plate and the receiver, but also the exterior is charged.
【0003】[0003]
【考案が解決しようとする課題】しかしながら、プラス
チック部品やプラスチックの外装に帯電した静電気の影
響で、ICが携帯中に誤動作してしまうという欠点を有
している。マイコンICを使用した、例えばクロノグラ
フやアラーム付の多機能時計では、この誤動作は致命的
である。However, there is a disadvantage that the IC malfunctions while being carried due to the influence of static electricity charged on the plastic parts and the plastic exterior. In a multifunction timepiece with a microcomputer IC, such as a chronograph or an alarm, this malfunction is fatal.
【0004】本考案の目的は、上記課題を解決しようと
するもので、従来の電子腕時計に対し、耐静電気の向上
を図る構造を提供するものである。[0004] An object of the present invention is to solve the above-mentioned problem, and to provide a structure for improving the antistatic property of a conventional electronic wristwatch.
【0005】[0005]
【課題を解決するための手段】上記目的を達成するため
の本考案の要旨は、プラスチック製の地板と、該地板の
上面方向に配置される回路ブロックに載置されたIC
と、該ICの電源となる電池より構成された電子腕時計
のムーブメントに於いて、前記地板の下面方向に配置さ
れる金属製の裏板と、該裏板と前記電池とを導通させる
接続手段を設けたことを特徴とするものである。SUMMARY OF THE INVENTION In order to achieve the above object, the gist of the present invention is to provide a plastic base plate and an IC mounted on a circuit block arranged on the top surface of the base plate.
In a movement of an electronic wristwatch constituted by a battery serving as a power source of the IC, a metal back plate arranged in a lower surface direction of the base plate, and a connecting means for conducting the back plate and the battery are provided. It is characterized by having been provided.
【0006】[0006]
【作用】本考案に於ける耐静電気構造は、文字板方向に
電池と導通した裏板を設けた為、プラスチック製の外装
に帯電した静電気がICに影響させることが少なくな
り、また、地板を帯電させることも少なくなって、耐静
電気を向上する構造になっている。[Function] The antistatic structure of the present invention has a back plate which is electrically connected to the battery in the direction of the dial, so that the static electricity charged on the plastic exterior is less likely to affect the IC. The structure is such that charging is reduced and static resistance is improved.
【0007】[0007]
【実施例】以下図面により本考案の実施例を詳述する。
図1は本考案の1つの実施例を示す断面図である。回路
ブロック1は、電池5で駆動されるIC1aを搭載する
プリント基板1bで構成されている。2は地板でありプ
ラスチックで作られている。3は回路ブロック1を地板
2に固定させると共に、回路ブロック1の裏蓋9方向の
静電気シールドを果たす金属で作られている電池押エ板
であり、一部に電池5を押圧し、導通をとる押エ部3a
を有している。4は地板2の文字板7方向の静電気シー
ルドを果たす金属製の裏板である。裏板4の一部に電池
押エ板3とそれを地板2に固定するネジを取り付ける支
柱2aと圧接して導通をとるバネ部4aを有している。
文字板7は裏板4に載っている。プラスチックで作られ
た外装の胴8、裏蓋9、風防ガラス10でムーブメント
が囲まれている。6は裏蓋9を固定するネジ、11はリ
ューズである。バネ部4aは裏板4と一体でなくても良
く、別のバネ部品や、ネジで裏板4と電池押エ板3を導
通させる方法もある。BRIEF DESCRIPTION OF THE DRAWINGS FIG.
FIG. 1 is a sectional view showing one embodiment of the present invention. The circuit block 1 includes a printed circuit board 1b on which an IC 1a driven by a battery 5 is mounted. Reference numeral 2 denotes a main plate made of plastic. Reference numeral 3 denotes a battery pushing plate made of a metal that fixes the circuit block 1 to the ground plate 2 and also serves as an electrostatic shield in the direction of the back cover 9 of the circuit block 1, and partially presses the battery 5 to conduct electricity. Pressing part 3a
have. Reference numeral 4 denotes a metal back plate that performs electrostatic shielding in the direction of the dial 7 of the base plate 2. A part of the back plate 4 has a spring portion 4a for pressing and contacting the battery pushing plate 3 and a column 2a for attaching a screw for fixing the battery pushing plate 3 to the base plate 2 to conduct electricity.
The dial 7 rests on the back plate 4. The movement is surrounded by an outer case 8, a back cover 9 and a windshield 10 made of plastic. Reference numeral 6 denotes a screw for fixing the back cover 9, and reference numeral 11 denotes a crown. The spring portion 4a may not be integral with the back plate 4, and there is a method of connecting the back plate 4 and the battery pushing plate 3 with another spring component or a screw.
【0008】IC1aは、裏板4の影にあってさらに電
池押エ板3に挟まれた構造になっているので、風防ガラ
ス10や裏蓋9に帯電した静電気の影響を受け難くなっ
ている。なお、以上説明してきた裏板4は、例えばカレ
ンダー付き時計にあっては、日板押さえがその機能を果
たすように代用してもよく、またプレーンな時計にあっ
ては静電シールド専用の金属板部材を設けてもよい。 Since the IC 1a is in the shadow of the back plate 4 and further sandwiched between the battery pushing plates 3, the IC 1a is hardly affected by static electricity charged on the windshield 10 and the back cover 9. . The back plate 4 described above is, for example,
In the case of a watch with a hanger, the date plate holder performs its function.
You can use it as a substitute for a plain watch.
Alternatively, a metal plate member dedicated to the electrostatic shield may be provided.
【0009】[0009]
【考案の効果】以上の説明で明らかなように、本考案に
よれば、プラスチック製の地板で構成されたムーブメン
トを、上下面両方向より同電極性の金属部品で静電気シ
ールドすることにより、ムーブメント状態のままでも、
また外装に収納された状態に於いても耐静電気が向上
し、信頼性をますます高めた電子腕時計を提供すること
ができる。As is apparent from the above description, according to the present invention, a movement composed of a plastic base plate is electrostatically shielded from both upper and lower sides by metal parts having the same electrode, thereby achieving a movement state. Even as it is
In addition, even when the electronic wristwatch is housed in an exterior, static electricity resistance is improved, and an electronic wristwatch with higher reliability can be provided.
【図1】本考案の一実施例を示す電子腕時計の断面図で
ある。FIG. 1 is a sectional view of an electronic wristwatch showing one embodiment of the present invention.
1 回路ブロック 1a IC 1b プリント基板 2 地板 3 電池押エ板 3a 押エ部 4 裏板 4a バネ部 5 電池 6 ネジ 7 文字板 8 胴 9 裏蓋 10 風防ガラス 11 リューズ DESCRIPTION OF SYMBOLS 1 Circuit block 1a IC 1b Printed circuit board 2 Ground plate 3 Battery pushing plate 3a Pushing portion 4 Back plate 4a Spring portion 5 Battery 6 Screw 7 Dial plate 8 Body 9 Back cover 10 Windshield 11 Crown
Claims (1)
方向に配置される回路ブロックに載置されたICと、該
ICの電源となる電池より構成された電子腕時計のムー
ブメントにおいて、前記地板の下面方向に配置される金
属製の裏板と、該裏板と前記電池を導通させる接続手段
を設けたことを特徴とする電子時計の耐静電気シールド
構造。1. A movement of an electronic wristwatch comprising a plastic base plate, an IC mounted on a circuit block arranged in the direction of the top surface of the base plate, and a battery serving as a power supply for the IC, An anti-static shield structure for an electronic timepiece, comprising: a metal back plate disposed in a lower surface direction; and connection means for electrically connecting the back plate to the battery.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7816992U JP2600099Y2 (en) | 1992-10-16 | 1992-10-16 | Antistatic shield structure of electronic watch |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7816992U JP2600099Y2 (en) | 1992-10-16 | 1992-10-16 | Antistatic shield structure of electronic watch |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH0635994U JPH0635994U (en) | 1994-05-13 |
JP2600099Y2 true JP2600099Y2 (en) | 1999-09-27 |
Family
ID=13654441
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7816992U Expired - Fee Related JP2600099Y2 (en) | 1992-10-16 | 1992-10-16 | Antistatic shield structure of electronic watch |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2600099Y2 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2003207583A (en) * | 1999-07-16 | 2003-07-25 | Citizen Watch Co Ltd | Timepiece |
-
1992
- 1992-10-16 JP JP7816992U patent/JP2600099Y2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JPH0635994U (en) | 1994-05-13 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
S533 | Written request for registration of change of name |
Free format text: JAPANESE INTERMEDIATE CODE: R323533 |
|
R350 | Written notification of registration of transfer |
Free format text: JAPANESE INTERMEDIATE CODE: R350 |
|
LAPS | Cancellation because of no payment of annual fees |