JPS62223736A - Electromagnetic driving shutter - Google Patents

Electromagnetic driving shutter

Info

Publication number
JPS62223736A
JPS62223736A JP6598586A JP6598586A JPS62223736A JP S62223736 A JPS62223736 A JP S62223736A JP 6598586 A JP6598586 A JP 6598586A JP 6598586 A JP6598586 A JP 6598586A JP S62223736 A JPS62223736 A JP S62223736A
Authority
JP
Japan
Prior art keywords
blade
output
driving
shutter
driving force
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.)
Granted
Application number
JP6598586A
Other languages
Japanese (ja)
Other versions
JPH0579969B2 (en
Inventor
Shigemi Takahashi
繁実 高橋
Nobuyoshi Inoue
信義 井上
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nidec Precision Corp
Original Assignee
Nidec Copal Corp
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 Nidec Copal Corp filed Critical Nidec Copal Corp
Priority to JP6598586A priority Critical patent/JPS62223736A/en
Publication of JPS62223736A publication Critical patent/JPS62223736A/en
Publication of JPH0579969B2 publication Critical patent/JPH0579969B2/ja
Granted legal-status Critical Current

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  • Shutters For Cameras (AREA)

Abstract

PURPOSE:To stabilize an exposing time with simple constitution by applying driving force in the setting direction to an electromagnetic driving device at the 1st releasing stage and temporarily holding a shutter blade at a prescribed start position. CONSTITUTION:When a release switch SW is turned to an S terminal of an FF, the output Q of the FF is turned to 'H' and a transistor(TR) T12 is connected. Simultaneously, the output of an OR gate ORG1 is turned to 'H' by the leading edge of an output signal of an one-shot multi-OSM1, TRs T2, T3 are connected through an inverter and the driving force in the setting direction is applied to an opening blade driving source 2. An abutting pin fitted to the tip part of an arm fixed on a driving shaft of the driving source 2 is abutted against an opening blade position regulating member, the blade is rotated up to the start position and driving force in an exposure working direction is applied to the driving source 2 on the basis of the trailing edge of the output of the OSM1.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、電磁駆動装置を用いて開放羽根群及び閉鎖羽
根群を駆動する電磁駆動シャンク−に関する。
DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an electromagnetic drive shank that uses an electromagnetic drive device to drive open blade groups and closed blade groups.

〔従来の技術〕[Conventional technology]

近年カメラの電子化が進み、露出制御やフィルム巻上げ
機構のチャージ或はミラー機構の作動などが電気的に処
理されるようになってきた。しかし、従来のシャッター
ではシャッター羽根の駆動源にハネ等を使用しているた
め、シャッターチャージに機械的な連結機構や多大な電
気的エネルギーが必要であり、これらは電気制御カメラ
にとって大きな短所となっていた。そこで、シャッター
においてもカメラ本体との機械的連結機構を省き電気信
号のみにより制御されるようにし且つ省電力化された電
磁駆動シャッターが提案され、公知となっている。
In recent years, cameras have become increasingly electronic, and functions such as exposure control, charging of the film winding mechanism, and operation of the mirror mechanism have come to be handled electrically. However, since conventional shutters use springs as the drive source for the shutter blades, a mechanical linkage mechanism and a large amount of electrical energy are required to charge the shutter, which is a major disadvantage for electrically controlled cameras. was. Therefore, an electromagnetic drive shutter has been proposed and is well known, in which the shutter does not have a mechanical connection mechanism with the camera body and is controlled only by electrical signals, thereby saving power.

〔発明が解決しようとする問題点〕[Problem that the invention seeks to solve]

ところが、上記従来のffi iff駆動シャッターは
、ンヤノター羽根をスタート側で一時保持するようには
なっていないため、露光時間を制御する上で重要な要素
である露光作動時のシャッター羽根のスタート位置が安
定せず、露出時間の乱調の原因となっているという問題
があった。
However, the conventional ffi iff drive shutter described above is not designed to temporarily hold the shutter blade on the start side, so the start position of the shutter blade during exposure operation, which is an important element in controlling the exposure time, is There was a problem in that it was not stable and caused irregularities in exposure time.

そこで、シャッター羽根を?it磁石或はコンビネーシ
ョンタイプのマグネットによりスタート位置に一時保持
する構成が考えられたが、この場合は構造が複雑で構成
部品の数及び種類から見ても高価になり、省電力の面か
らも必ずしも好ましい構成ではなかった。
So what about shutter blades? A configuration in which it is temporarily held at the starting position using an IT magnet or a combination type magnet has been considered, but in this case, the structure is complicated and expensive in terms of the number and type of components, and it is not always possible to save energy. It was not a desirable configuration.

本発明は、上記問題点に漏み、節単且つ省電力的な構造
で露出時間が安定する電磁駆動シャ・7ターを提供する
ことを目的とする。
SUMMARY OF THE INVENTION The present invention addresses the above-mentioned problems and aims to provide an electromagnetic drive shutter with a simple and power-saving structure and stable exposure time.

C問題点を解決するための手段及び作用〕本発明による
電磁駆動シャッターは、電磁駆動装にを用いて開放羽根
群及び閉鎖羽根群を駆動する電磁駆動シャッターにおい
て、レリーズの第1段階にて電磁駆動装置にセント方向
の駆動力を与えて羽根駆動部材を位置規制部材に当接せ
しめ、レリーズの第2段階にて電磁駆動装置に露光作動
方向の駆動力を与えるようにして、電磁石等を用いるこ
となく露光作動時のシャッター羽根のスタート位置を安
定させるようにしたものである。
Means and operation for solving problem C] The electromagnetic drive shutter according to the present invention uses an electromagnetic drive device to drive an opening blade group and a closing blade group. Applying a driving force in the center direction to the drive device to bring the blade drive member into contact with the position regulating member, and applying a driving force in the exposure operation direction to the electromagnetic drive device in the second stage of release, using an electromagnet or the like. This is to stabilize the start position of the shutter blade during exposure operation without causing any problems.

〔実施例〕〔Example〕

以下、図示した一実施例に茫づき本発明の詳細な説明す
る。
Hereinafter, the present invention will be described in detail with reference to an illustrated embodiment.

第1図は本発明シャッターの要部の構成を示しており、
1はアパーチャ1aを有するシャッタープレート、2は
ンヤノタープレート1に固定されたモータ等の開放羽根
駆動源、3は基部が開放羽根駆動tA2の駆動軸に固着
されていて先端部に開放羽根群4の支持アーム5.5の
一つに連結された開放ピン3a及び後述の位置規制部材
に係接し得る係接ピン3bが固着された開放羽根駆動部
材である。6は軸7及び光調整偏芯軸8によって位置調
整可能にシャッタープレート1上に取付けられた開放羽
根位置規制部材である。
FIG. 1 shows the configuration of the main parts of the shutter of the present invention,
1 is a shutter plate having an aperture 1a, 2 is an open blade drive source such as a motor fixed to the Nyanotar plate 1, and 3 is a group of open blades whose base is fixed to the drive shaft of the open blade drive tA2 and whose tip is a group of open blades. This is an open blade drive member to which an open pin 3a connected to one of the four support arms 5.5 and an engagement pin 3b that can engage with a position regulating member described later are fixed. Reference numeral 6 denotes an open blade position regulating member mounted on the shutter plate 1 so that its position can be adjusted by a shaft 7 and an optical adjustment eccentric shaft 8.

9はシャッタープレートlに固定されたモータ等の閉鎖
羽根駆動源、10は基部が閉鎖羽根駆動源9の駆動軸に
固着されていて先端部に図示しない閉鎖羽根群の支持ア
ームの一つに連結された閉鎖ピン10a及び後述の位置
規制部材に係接し得る係接ピンtabが固着された閉鎖
羽根駆動部材である。11は軸12及び後調整偏芯軸1
3によって位に調整可能にシャッタープレー1・1上に
取り付けられた閉鎖羽根位置規制部材である。
Reference numeral 9 denotes a closing blade drive source such as a motor fixed to the shutter plate l, and 10 has a base fixed to the drive shaft of the closing blade driving source 9 and is connected to one of the support arms of the closing blade group (not shown) at the tip. This is a closing blade driving member to which a closing pin 10a and an engaging pin tab that can be engaged with a position regulating member described later are fixed. 11 is the shaft 12 and the post-adjustment eccentric shaft 1
3 is a closing blade position regulating member attached to the shutter plate 1, 1 so as to be adjustable in position.

尚、上記再位置規制部材は、両方共固定式でも良いし、
片方のみ調整式でも良い。又、羽根駆動源としては駆動
部材を必要としないダイレクトタイプ或はリニアモータ
方式でも良い。
In addition, both of the above-mentioned repositioning regulating members may be fixed types, or
Only one side may be adjustable. Further, the blade driving source may be a direct type or a linear motor type that does not require a driving member.

第2図は上記実施例の制御回路を示しており、SWはレ
リーズスイッチ、FFはフリップフロップ、03M、、
05M2 、03M、はワンショットマルチ、ORG、
、0RG2はオアゲート、N0RGはノアゲート、14
は露光時間制御回路、15はシャックセット回路、T1
乃至T、はトランジスタ、Eは電源である。
FIG. 2 shows the control circuit of the above embodiment, SW is a release switch, FF is a flip-flop, 03M, .
05M2, 03M, one shot multi, ORG,
, 0RG2 is OR gate, N0RG is Noah gate, 14
is an exposure time control circuit, 15 is a shack set circuit, T1
T to T are transistors, and E is a power supply.

本発明による電磁駆動シャッターは上述の如く構成され
ているから、各部材の作動状態の変化を示す第3図と作
動シーケンスを示す第4図を参照しながら作動原理につ
いて説明すれば、第2図においてレリーズスイッチSW
の接片がフリップフロップFFのリセット端子Rがらセ
ット端子Sに切り換わるとフリップフロップFFの出力
Qがr HJとなり、トランジスタT、が導通ずる。こ
れと同時にワンショットマルチO3M、が出力を発し、
その出力信号の立上りによりオアゲートORG、の出力
が「I(」となり、インバータを介してトランジスタT
 2 、 T 3が導通して開放羽根駆動tA2にセッ
ト方向の駆動力が付与され、第3図に示した如く開放羽
根駆動部材3がその係接ピン3bが開放羽根位置規制部
材6に当接して規制される位置即ちスタート位置まで右
旋せしめられる。
Since the electromagnetic drive shutter according to the present invention is constructed as described above, the operating principle will be explained with reference to FIG. 3 showing changes in the operating state of each member and FIG. 4 showing the operating sequence. Release switch SW
When the contact piece of the flip-flop FF is switched from the reset terminal R to the set terminal S, the output Q of the flip-flop FF becomes rHJ, and the transistor T becomes conductive. At the same time, the one-shot multi-O3M emits output,
Due to the rise of the output signal, the output of the OR gate ORG becomes "I("), and the output of the OR gate becomes "I("), and the
2 and T3 are electrically connected, a driving force in the setting direction is applied to the opening blade drive tA2, and as shown in FIG. The robot is rotated to the right until it reaches the starting position.

一方、上記と同時にフリップフロップFFの出力Qがr
LJとなり、初期状態では露光時間制御回路14の出力
が「L」であるのでノアゲートN0RGの出力がrHJ
となってオアゲー) ORG2の出力が「I]」となり
、インバータを介してトランジスタT。、T、がW通し
て閉鎖羽根駆動源9に七ノド方向の駆動力が付与され、
閉11“i羽根駆1すJ部材10がその係接ピン10b
が閉鎖羽F艮位置規制部材11に当接して規制される位
置即ちスタート位置まで右旋せしめられる。
On the other hand, at the same time as above, the output Q of the flip-flop FF is r
Since the output of the exposure time control circuit 14 is "L" in the initial state, the output of the NOR gate N0RG becomes rHJ.
(or game) The output of ORG2 becomes "I", and it is connected to transistor T via an inverter. , T, are applied to the closing blade drive source 9 through W, and a driving force in the seven-node direction is applied,
Closed 11"I blade drive 1J member 10 is connected to its engagement pin 10b
The closing wing F is rotated to the right to a position where it comes into contact with the position regulating member 11 and is regulated, that is, a starting position.

次に、ワンショットマルチ08M1の出力信月の立下り
によりオアゲート○RG1の出力が「L」となり、今度
はインバータを介してトランジスタT a 、 T s
が導通して閉1ri羽F11駆動源2に露光作動方向の
駆動力が付与され、開放羽根駆動部材3が左旋して開放
羽根群4がI最影光路上から退避し露光が開始される。
Next, due to the fall of the output signal of the one-shot multi 08M1, the output of the OR gate ○RG1 becomes "L", and this time, the transistors T a and T s are connected via the inverter.
conducts, a driving force in the exposure operation direction is applied to the closed blade F11 drive source 2, the open blade drive member 3 rotates to the left, the open blade group 4 retreats from the I-most shadow optical path, and exposure is started.

これと同時に露光時間制御回路I4が計時を開始し、所
定秒時経過後その出力がrHJとなる。すると、今度は
インバータを介してトランジスタT、、、T、、が導通
して閉鎖羽根駆動源9に露光作動方向の駆動力が付与さ
れ、閉鎖羽根駆動部材10が左旋して閉鎖羽根群が撮影
光路上を覆い露光が終了する。
At the same time, the exposure time control circuit I4 starts measuring time, and after a predetermined period of time has elapsed, its output becomes rHJ. Then, the transistors T, . The light path is covered and exposure is completed.

又、露光時間制御回路14の出力が「H」になりそれが
インバータを介してrLJになると、シャックセット回
路15において所定の遅延時間後まずワンショットマル
チO3M、の出力がr HJとなり、一定の時間差をも
ってワンショットマルチOS M zの出力が「トl」
となる。ワンショットマルチ○SM2の出力がrHJに
なるとオアゲート○RG、の出力が「トI」になるので
、インバータを介してトランジスタTz、Tsが導通し
て開放羽根駆動源2がセント方向に作動し、開放羽根群
4が撮影光路上を覆う状態に戻る。その後ワンショット
マルチO3M、の出力が「1[」になるとオアゲートO
RG zの出力がrHJになるので、インバータを介し
てトランジスタT、、T、が導通して閉鎖羽根群が撮影
光路上から退避する。かくして、セントが終了する。
Also, when the output of the exposure time control circuit 14 becomes "H" and becomes rLJ via the inverter, the output of the one-shot multi-O3M becomes rHJ after a predetermined delay time in the shack set circuit 15, and a constant The output of one-shot multi-OS M z becomes "Tr" with a time difference.
becomes. When the output of the one-shot multi○SM2 becomes rHJ, the output of the OR gate○RG becomes "I", so the transistors Tz and Ts become conductive via the inverter, and the open blade drive source 2 operates in the cent direction. The open blade group 4 returns to the state covering the photographing optical path. After that, when the output of one-shot multi O3M becomes "1[", OR gate O
Since the output of RG z becomes rHJ, the transistors T, , T, become conductive via the inverter, and the closing blade group retreats from the photographing optical path. Thus, the cent ends.

以上、本発明電磁駆動シャッターの作動原理について説
明したが、本発明電磁駆動シャッターは、レリーズの第
1段階にて電磁駆動装置にセント方向の駆+)tカを与
えて羽根駆動部材を位置規部材に当接せしめるようにし
ているので露光作動時のシャンク−羽根のスタート位置
が安定し、その結果露光時間が安定する。而も、7ri
磁石等を用いずに済むので、構造が簡単且つ省電力的な
ものとなる。
The operating principle of the electromagnetically driven shutter of the present invention has been explained above.The electromagnetically driven shutter of the present invention applies a driving force in the center direction to the electromagnetic drive device in the first stage of release to position the blade driving member. Since it is brought into contact with the member, the starting position of the shank and blade during exposure operation is stabilized, and as a result, the exposure time is stabilized. However, 7ri
Since there is no need to use a magnet or the like, the structure is simple and power-saving.

又、位置規制部材の位置を調整することによりスタート
位置の調整をすることができるので、−5品積度な露出
時間を得ることができる。
Furthermore, since the start position can be adjusted by adjusting the position of the position regulating member, an exposure time of -5 items can be obtained.

〔発明の効果〕〔Effect of the invention〕

上述の如く、本発明による電磁駆動シャッターは、簡単
且つ省電力的な構造で露出時間が安定するという実用上
重要な利点を有している。
As described above, the electromagnetically driven shutter according to the present invention has the important practical advantages of a simple and power-saving structure and stable exposure time.

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

第1図は本発明による電磁駆動シャッターの一実施例の
要部の構成を示す図、第2図は上記実施例の制御回路を
示す図、第3図は上記実施例の各部材の作動状態を変化
を示す図、第4図上記実施例の作動シーケンスを示す図
。 1・・・・シャッタープレート、2・・・・開放羽根駆
動源、3・・・・開放羽根駆動部材、4・・・・開放羽
根群、5・・・・支持アーム、6・・・・開放羽根位置
規制部材、7・・・・軸、8・・・・先調整偏芯軸、9
・・・・閉鎖羽根駆動源、10・・・・閉鎖羽根駆動部
材、11・・・・閉鎖羽根位置規制部材、12・・・、
軸、13.。 ・・後調整偏芯軸、14・・・・露光時間制御回路、1
5・・・・シャックセット回路、S W、、、、レリー
ズスイッチ、FF・・・・フリップフロップ、03M、
。 OS Mz 、  OS Mx・・・・ワンショットマ
ルチ、ORC,、ORC2・・・・オアゲート、N O
RG、。 ・・ノアゲート、TI乃至T、・・・・トランジスタ、
E・・・・電源。 第3図
Fig. 1 is a diagram showing the configuration of essential parts of an embodiment of an electromagnetically driven shutter according to the present invention, Fig. 2 is a diagram showing a control circuit of the above embodiment, and Fig. 3 is an operating state of each member of the above embodiment. FIG. 4 is a diagram showing the operation sequence of the above embodiment. DESCRIPTION OF SYMBOLS 1... Shutter plate, 2... Opening blade drive source, 3... Opening blade driving member, 4... Opening blade group, 5... Support arm, 6... Opening blade position regulating member, 7... shaft, 8... tip adjustment eccentric shaft, 9
... Closing blade drive source, 10... Closing blade driving member, 11... Closing blade position regulating member, 12...,
Axis, 13. . ...Post-adjustment eccentric axis, 14...Exposure time control circuit, 1
5...Shack set circuit, SW,..., release switch, FF...flip-flop, 03M,
. OS Mz, OS Mx...One shot multi, ORC,, ORC2...Or gate, NO
R.G. ...Nor gate, TI to T, ...transistor,
E...Power supply. Figure 3

Claims (1)

【特許請求の範囲】[Claims] 電磁駆動装置を用いて開放羽根群及び閉鎖羽根群を駆動
する電磁駆動シャッターにおいて、レリーズの第1段階
にて電磁駆動装置にセット方向の駆動力を与えて羽根駆
動部材を位置規制部材に当接せしめ、レリーズの第2段
階にて電磁駆動装置に露光作動方向の駆動力を与えるよ
うにしたことを特徴とする電磁駆動シャッター。
In an electromagnetic drive shutter that uses an electromagnetic drive device to drive an open blade group and a closed blade group, in the first stage of release, a driving force in the set direction is applied to the electromagnetic drive device to bring the blade drive member into contact with the position regulating member. An electromagnetically driven shutter characterized in that a driving force in an exposure operation direction is applied to an electromagnetic driving device at the second stage of release.
JP6598586A 1986-03-26 1986-03-26 Electromagnetic driving shutter Granted JPS62223736A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6598586A JPS62223736A (en) 1986-03-26 1986-03-26 Electromagnetic driving shutter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6598586A JPS62223736A (en) 1986-03-26 1986-03-26 Electromagnetic driving shutter

Publications (2)

Publication Number Publication Date
JPS62223736A true JPS62223736A (en) 1987-10-01
JPH0579969B2 JPH0579969B2 (en) 1993-11-05

Family

ID=13302811

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6598586A Granted JPS62223736A (en) 1986-03-26 1986-03-26 Electromagnetic driving shutter

Country Status (1)

Country Link
JP (1) JPS62223736A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6726379B2 (en) 2001-03-26 2004-04-27 Nidec Copal Corporation Camera focal plane shutter

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5838938A (en) * 1981-09-02 1983-03-07 Canon Inc Lens device having electromagnetically driven diaphragm
JPS58186728A (en) * 1982-04-26 1983-10-31 Canon Inc Electromagnetic driving focal-plane shutter
JPS58180539U (en) * 1982-05-25 1983-12-02 日本電産コパル株式会社 Focal plane shutter time adjustment mechanism
JPS60144726A (en) * 1983-12-31 1985-07-31 Copal Co Ltd Exposure controller
JPS61251828A (en) * 1985-04-30 1986-11-08 Konishiroku Photo Ind Co Ltd Shutter device

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5838938A (en) * 1981-09-02 1983-03-07 Canon Inc Lens device having electromagnetically driven diaphragm
JPS58186728A (en) * 1982-04-26 1983-10-31 Canon Inc Electromagnetic driving focal-plane shutter
JPS58180539U (en) * 1982-05-25 1983-12-02 日本電産コパル株式会社 Focal plane shutter time adjustment mechanism
JPS60144726A (en) * 1983-12-31 1985-07-31 Copal Co Ltd Exposure controller
JPS61251828A (en) * 1985-04-30 1986-11-08 Konishiroku Photo Ind Co Ltd Shutter device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6726379B2 (en) 2001-03-26 2004-04-27 Nidec Copal Corporation Camera focal plane shutter

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JPH0579969B2 (en) 1993-11-05

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