JP2522243Y2 - Camera electrical protection structure - Google Patents
Camera electrical protection structureInfo
- Publication number
- JP2522243Y2 JP2522243Y2 JP1990016061U JP1606190U JP2522243Y2 JP 2522243 Y2 JP2522243 Y2 JP 2522243Y2 JP 1990016061 U JP1990016061 U JP 1990016061U JP 1606190 U JP1606190 U JP 1606190U JP 2522243 Y2 JP2522243 Y2 JP 2522243Y2
- Authority
- JP
- Japan
- Prior art keywords
- camera
- battery
- strap
- negative electrode
- electronic circuit
- 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
- Camera Bodies And Camera Details Or Accessories (AREA)
- Accessories Of Cameras (AREA)
Description
【考案の詳細な説明】 〔産業上の利用分野〕 本考案は、電子回路を内蔵するカメラに関し、特にそ
の電子回路を電気的に保護するための構造に関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a camera having a built-in electronic circuit, and particularly to a structure for electrically protecting the electronic circuit.
最近のカメラにおいて、本体あるいは部品が合成樹脂
により成形されたものが増加してきている一方、種々の
制御を電子回路によって行うものが開発されてきてい
る。ところが合成樹脂は、静電気が帯電し易く、高電圧
の帯電状態から放電すると、この放電により電子回路内
の半導体素子が絶縁破壊するおそれがあり、このため電
子回路が誤動作してカメラの制御が正確に行われなくな
るという問題が生じる。このような問題は、カメラの使
用者の衣服が帯電している場合にさらに重大であり、手
がカメラに触れると高電圧の放電が発生して、同様に電
子回路が破壊するおそれが生じる。In recent cameras, while the number of cameras whose main bodies or parts are formed of synthetic resin has been increasing, those that perform various controls by electronic circuits have been developed. However, synthetic resin is easily charged with static electricity, and when discharged from a high-voltage charged state, this discharge may cause dielectric breakdown of the semiconductor elements in the electronic circuit, causing the electronic circuit to malfunction and controlling the camera accurately. The problem is that it is no longer performed. Such a problem is even more serious when the camera user's clothes are charged, and when the hand touches the camera, a high-voltage discharge occurs, which may similarly damage the electronic circuit.
本考案は、人体あるいはカメラ本体の帯電によってカ
メラ内の電子回路が高電圧の影響を受けることを防止
し、その電子回路の正常な作動を確保することを目的と
してなされたものである。The present invention has been made to prevent the electronic circuit in the camera from being affected by a high voltage due to the charging of the human body or the camera body, and to ensure the normal operation of the electronic circuit.
本考案に係るカメラの電気的保護構造は、電池を内蔵
するカメラ本体の外部に導電性部材を有するストラップ
を設けるとともに、このストラップを上記電池の負極に
導通させて、これらストラップおよび電池の負極を同電
位状態に定めたことを特徴としている。The electrical protection structure of the camera according to the present invention provides a strap having a conductive member outside the camera body containing the battery, and conducts the strap to the negative electrode of the battery to connect the strap and the negative electrode of the battery. It is characterized by being set to the same potential state.
以下図示実施例により本考案を説明する。 The present invention will be described below with reference to the illustrated embodiments.
第１図は本考案の一実施例を示し、このカメラは、合
焦動作およびシャッター速度の設定等が図示しない電子
回路により制御されるように構成されている。この電子
回路は電池11を電源としており、この電池11はカメラ本
体12内の側部に収容され、正極13をカメラ本体の下方に
向け、負極14をカメラ本体の略中央に位置させて配設さ
れる。FIG. 1 shows an embodiment of the present invention. This camera is configured such that focusing operation and setting of a shutter speed are controlled by an electronic circuit (not shown). This electronic circuit uses a battery 11 as a power supply, and the battery 11 is housed in a side portion inside the camera body 12, and is disposed with the positive electrode 13 facing downward of the camera body and the negative electrode 14 positioned substantially at the center of the camera body. Is done.
カメラ本体12の側部に突設された支持部15の孔内に
は、ストラップ16が挿通されており、本実施例において
このストラップ16は、金属等の導電性部材を有してい
る。電池11の負極14とストラップ16の導電性部材とは、
支持部15の孔内において、接続部材17によって電気的に
接続され、これらの導電性部材と電池11の負極14とが同
電位状態に定められている。すなわち、ストラップ16、
接続部材17および電池11の負極14によって放電経路が形
成される。A strap 16 is inserted into a hole of the support portion 15 protruding from the side of the camera body 12, and in this embodiment, the strap 16 has a conductive member such as a metal. The negative electrode 14 of the battery 11 and the conductive member of the strap 16
In the hole of the support portion 15, the connection member 17 electrically connects the conductive member and the negative electrode 14 of the battery 11 to the same potential. That is, the strap 16,
The connection member 17 and the negative electrode 14 of the battery 11 form a discharge path.
したがって、カメラの使用者の体に静電気が帯電して
いても、この静電気は、使用者がストラップ16に触れて
いる限り電池11の負極14に放電されることとなる。また
カメラ本体12に静電気が帯電しても、この静電気はスト
ラップ16から常時電池11の負極14に放電される。このた
め、カメラ本体12が高電圧に帯電することはない。Therefore, even if the body of the user of the camera is charged with static electricity, the static electricity is discharged to the negative electrode 14 of the battery 11 as long as the user touches the strap 16. Even if the camera body 12 is charged with static electricity, the static electricity is constantly discharged from the strap 16 to the negative electrode 14 of the battery 11. Therefore, the camera body 12 is not charged with a high voltage.
このように積極的に放電経路を設けることにより、高
電圧の放電の発生が防止され、カメラ内部の電子回路が
破壊するおそれが除去されて誤動作することがなくな
り、常に正常な動作が確保される。By positively providing the discharge path in this way, the occurrence of high-voltage discharge is prevented, the risk of damage to the electronic circuit inside the camera is eliminated, malfunction does not occur, and normal operation is always ensured. .
なお上記実施例において、ストラップ16が導電性部材
を有していたが、これに代え、例えばレリーズボタンの
近傍等のように、カメラ本体12の一部であって使用者の
手が触れ易い部分に導電性部材を設け、この導電性部材
と電池11の負極14とを電気的に接続する構成を採用して
もよい。つまり、この導電性部材は、カメラ本体12の外
部の帯電体によって発生した静電気を積極的に電池11の
負極14に導くものであればよい。In the above-described embodiment, the strap 16 has a conductive member. Instead, for example, a part of the camera body 12 that is easy to touch by the user, such as near the release button. Alternatively, a configuration may be adopted in which a conductive member is provided, and the conductive member is electrically connected to the negative electrode 14 of the battery 11. That is, the conductive member may be any member that positively guides static electricity generated by the charged body outside the camera body 12 to the negative electrode 14 of the battery 11.
以上のように本考案によれば、静電気のカメラ内部へ
の影響が抑制され、カメラに内蔵された電子回路の正常
な作動が常に確保されるという効果が得られる。As described above, according to the present invention, the effect of suppressing the influence of static electricity on the inside of the camera is obtained, and the normal operation of the electronic circuit built in the camera is always ensured.
第１図は本考案の一実施例を示す図である。 11……電池 12……カメラ本体 14……負極 16……ストラップ 17……接続部材 FIG. 1 shows an embodiment of the present invention. 11 Battery 12 Camera body Negative electrode 16 Strap 17 Connection member
Claims (1)
部材を有するストラップを設けるとともに、このストラ
ップを上記電池の負極に導通させて、これらストラップ
および電池の負極を同電位状態に定めたことを特徴とす
るカメラの電気的保護構造。1. A strap having a conductive member is provided outside a camera body containing a battery, and the strap is electrically connected to a negative electrode of the battery to set the strap and the negative electrode of the battery to the same potential state. An electrical protection structure for a camera.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990016061U JP2522243Y2 (en) | 1990-02-20 | 1990-02-20 | Camera electrical protection structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990016061U JP2522243Y2 (en) | 1990-02-20 | 1990-02-20 | Camera electrical protection structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03108232U JPH03108232U (en) | 1991-11-07 |
| JP2522243Y2 true JP2522243Y2 (en) | 1997-01-08 |
Family
ID=31519347
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1990016061U Expired - Fee Related JP2522243Y2 (en) | 1990-02-20 | 1990-02-20 | Camera electrical protection structure |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2522243Y2 (en) |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60163031A (en) * | 1984-02-03 | 1985-08-24 | Canon Inc | Data imprinting device |
-
1990
- 1990-02-20 JP JP1990016061U patent/JP2522243Y2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH03108232U (en) | 1991-11-07 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |