JPS58190930A - Motor driving shutter of single-lens reflex camera - Google Patents

Motor driving shutter of single-lens reflex camera

Info

Publication number
JPS58190930A
JPS58190930A JP7366982A JP7366982A JPS58190930A JP S58190930 A JPS58190930 A JP S58190930A JP 7366982 A JP7366982 A JP 7366982A JP 7366982 A JP7366982 A JP 7366982A JP S58190930 A JPS58190930 A JP S58190930A
Authority
JP
Japan
Prior art keywords
curtain
shutter
motor
clutch mechanism
lever
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
JP7366982A
Other languages
Japanese (ja)
Other versions
JPH0370210B2 (en
Inventor
Masaru Yamamoto
勝 山本
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.)
Kyocera Corp
YASHIKA KK
Yashica Co Ltd
Original Assignee
Kyocera Corp
YASHIKA KK
Yashica Co Ltd
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 Kyocera Corp, YASHIKA KK, Yashica Co Ltd filed Critical Kyocera Corp
Priority to JP7366982A priority Critical patent/JPS58190930A/en
Publication of JPS58190930A publication Critical patent/JPS58190930A/en
Publication of JPH0370210B2 publication Critical patent/JPH0370210B2/ja
Granted legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03BAPPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B9/00Exposure-making shutters; Diaphragms
    • G03B9/08Shutters
    • G03B9/10Blade or disc rotating or pivoting about axis normal to its plane
    • G03B9/18More than two members

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Cameras In General (AREA)
  • Shutters For Cameras (AREA)

Abstract

PURPOSE:To improve the traveling reliability of a shutter by starting the traveling of the shutter when a motor is turning stably after the lapse of its rise time and then to realize the miniaturization on the shutter with a reduction of the motor load by setting the shutter traveling that has no relation with the film winding. CONSTITUTION:A motor driving shutter consists of the 1st clutch mechanism which drives the 1st and 2nd ratchet wheels 10 and 11 with a built-in motor 1 and then advances the front curtain 6 with engagement to the wheel 10, an electromagnetic device (trigger switch 20, electromagnet 23, etc.) which works after detecting the traveling of the curtain 6 and after the lapse of the set time, the 2nd clutch mechanism which is energized by the electromagnetic device and engages with the 2nd wheel 11, etc. A mirror is raised up during the rise time of the motor 1, and the wheel 10 engages with the clutch mechanism with a rise end signal to drive the curtain 6. The traveling of the curtain 6 is detected by the electromagnetic device. Then the wheel 11 engages with the 2nd clutch mechanism after a prescribed period of time elapse to drive the rear curtain.

Description

【発明の詳細な説明】 本発明はシャッタの幕走行を直接モータ駆動により行な
うことのできる一眼レフカメラのモータ駆動シャッタに
関する。
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a motor-driven shutter for a single-lens reflex camera in which the curtain of the shutter can be driven directly by a motor.

最近のモータドライブ内蔵形のカメラにおいては、電池
の消費が少なくモータ効率の良い使用方法と相まって機
構自体の省エネルギ設計が要求されている。
Recent cameras with a built-in motor drive are required to have an energy-saving design for the mechanism itself, in combination with low battery consumption and efficient use of the motor.

一般に、−眼レフカメラのミラーはいわゆるクイックリ
ターン機構が用いられ、フィルム巻上げ時にチャージさ
れたスプリングでミラー上昇させ、シャッタの後幕走行
に連動して復帰させる方法がとられ、シャッタはいわゆ
るフォーカルプレーンシャッタが用いられ、先幕、後幕
ともフィルム巻上げ時にスプリングをあらかじめチャー
ジしておき、撮影時にこのスプリングの付勢力により先
幕および後幕を走行させてシャッタ速度を得る方法がと
られている。
In general, the mirror of an eye reflex camera uses a so-called quick return mechanism, in which the mirror is raised by a spring charged when the film is wound up, and then returned to its original position in conjunction with the movement of the rear curtain of the shutter. A shutter is used, and a method is used in which a spring is charged in advance for both the front curtain and the rear curtain when the film is wound, and the shutter speed is obtained by driving the front curtain and the rear curtain by the biasing force of the springs at the time of photographing.

このように、ミラーやシャッタ等の動作のために、予め
゛スプリングチャージをする必要があるが、カメラのタ
イムシーケンス上動作が重ならないにも拘わらず、従来
の手動形のカメラと同様にフィルム巻上げ動作時にスプ
リングチャージが行なわれているのが現状である。この
ため、モータにかかる負荷が非常に大きくなり、モータ
の出方に大きなトルクを必要としていた。これは、小形
化が要求されるカメラには不都合であった。
In this way, it is necessary to perform a spring charge in advance for the operation of the mirror, shutter, etc., but even though the operations do not overlap in the camera's time sequence, the film can be wound in the same way as with conventional manual cameras. Currently, spring charging is performed during operation. For this reason, the load on the motor becomes extremely large, and a large torque is required to drive the motor. This is inconvenient for cameras that require miniaturization.

このような問題を解決するために、ミラー動作を直接モ
ータで行い、フィルム巻上げ時にがかる負荷を軽減し、
従来より小形のモータでも動作可能にしたモータドライ
ブ内蔵形カメラが提案されている。
In order to solve this problem, the mirror operation is performed directly by the motor, reducing the load applied when winding the film.
Cameras with built-in motor drives have been proposed that can be operated with smaller motors than conventional ones.

しかしながら、このようなカメラにおいてもフィルム巻
上げと同時にシャッタチャージを行なっているため、ま
だ完全にトルク軽減を果しているとは言い切れない。
However, even in such a camera, since the shutter is charged at the same time as the film is wound up, it cannot be said that the torque has been completely reduced.

そこで、本発明の目的は、シャッタ走行を直接モータで
行い、シャッタチャージによるエネルギの損失を完全に
取り除いた一眼レフカメラのモータ駆動シャッタを提供
することにある。
SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a motor-driven shutter for a single-lens reflex camera in which shutter movement is performed directly by a motor and energy loss due to shutter charging is completely eliminated.

前記目的を達成するために本発明による一眼レフカメラ
のモータ駆動シャッタは、−眼レフカメラにおいて、カ
メラに内蔵されたモータにより駆動される第一および第
二の型車と、前記第一の型車と係合して先幕を走行させ
る第一のクラッチ機構と、前記先幕の走行開始を検出し
たのち設定時間経過後作動する電磁装置と、前記電磁装
置に付勢されて前記第二の型車と係合して後幕を走行さ
せる第二のクラッチ機構とからなり、前記モータの立ち
上り時間でミラーを上昇させ、前記ミラーの上昇終了信
号により前記第一の型車を前記第一のクラッチ機構に係
合して先幕を走行させ、前記先幕の走行開始を前記電磁
装置が検出して設定時間経過後前記第二の型車を前記第
二のクラッチ機構に係合して後幕を走行させるように構
成されている。
To achieve the above object, a motor-driven shutter for a single-lens reflex camera according to the present invention includes: - a motor-driven shutter for a single-lens reflex camera; a first clutch mechanism that engages with the vehicle and causes the leading curtain to run; an electromagnetic device that operates after a set time has elapsed after detecting the start of running of the leading curtain; and a second clutch mechanism that is energized by the electromagnetic device. a second clutch mechanism that engages with the model car to move the trailing curtain; the mirror is raised by the start-up time of the motor, and the first model car is moved from the first model car to the first model car in response to a signal for completing the rise of the mirror; After engaging a clutch mechanism to cause the leading curtain to run, and after the electromagnetic device detects the start of running of the leading curtain and a set time has elapsed, engaging the second model car to the second clutch mechanism. It is configured to run the curtain.

前記構成によれば本発明の目的は完全に達成できる。According to the above configuration, the object of the present invention can be completely achieved.

以下、図面等を参照して本発明をさらに詳しく説明する
Hereinafter, the present invention will be explained in more detail with reference to the drawings and the like.

第1図は本発明による一眼レフカメラのモータ駆動シャ
ッタの実施例を示す機構図であって、カメラの作動前に
シャッタが閉じている状態を示した図である。
FIG. 1 is a mechanical diagram showing an embodiment of a motor-driven shutter for a single-lens reflex camera according to the present invention, and shows a state in which the shutter is closed before the camera is operated.

本実施例では、縦走りのメタルフォーカルプレーンシャ
ッタに適用した例について説明する。縦走りのメタルフ
ォーカルプレーンシャッタは、シャツタ枠7に設けられ
た先幕6(第1図)と後幕35(第3図)とから構成さ
れている。先幕6は溝16内部に設けられている幕羽根
の穴に係合したビン15に連動し、ビン15が溝16の
上端部18まで上昇する間にシャツタ枠7内に光線が通
過可能となりフィルムが露光される。後幕35は溝27
内部に設けられている幕羽根の穴に係合したビン26に
連動し、ビン26が溝27の上端部28まで移動するこ
とにより、後幕35が上方向に移動して光を遮断する。
In this embodiment, an example in which the present invention is applied to a vertically running metal focal plane shutter will be described. The vertically running metal focal plane shutter is composed of a leading curtain 6 (FIG. 1) and a trailing curtain 35 (FIG. 3) provided in the shutter frame 7. The front curtain 6 is interlocked with the bin 15 engaged with a hole in the curtain blade provided inside the groove 16, and while the bin 15 rises to the upper end 18 of the groove 16, light rays can pass through the shutter frame 7. The film is exposed. The rear curtain 35 is the groove 27
When the bin 26 is moved to the upper end 28 of the groove 27 in conjunction with the bin 26 engaged with the hole in the curtain blade provided inside, the trailing curtain 35 moves upward and blocks light.

モータlは、撮影を開始するためレリーズ釦を押すこと
により回転を開始する。モータ1の回転の立ち上がり時
間(50〜60m5ec)はミラー上昇のために利用さ
れており、回転の立ち上りの不安定状態はミラー上昇の
ための時間内に終了し、回転が安定した状態をシャ乙夕
幕走行の動作に利用している。
The motor 1 starts rotating when the release button is pressed to start photographing. The start-up time of the rotation of motor 1 (50 to 60 m5ec) is used to raise the mirror, and the unstable state of the start-up of the rotation ends within the time required for the mirror to rise, and the stable state of rotation is maintained. It is used to operate the evening curtain.

モータ1の回転は傘歯車2、傘歯車2と噛み合う傘歯車
3、傘歯車3と噛み合う歯車4、歯車4と噛み合う歯車
5へと伝達され、さらに同軸に設けられた型車10,1
1に矢印方向の回転力を与えている。
The rotation of the motor 1 is transmitted to a bevel gear 2, a bevel gear 3 that meshes with the bevel gear 2, a gear 4 that meshes with the bevel gear 3, a gear 5 that meshes with the gear 4, and further to mold wheels 10 and 1 provided coaxially.
1 is given a rotational force in the direction of the arrow.

いま、ミラー上昇レバー30がミラー上昇と連動して(
T)の位置から上方向に移動して行き、(II)の位置
でミラー上昇が完了した状態となったとする。ミラー上
昇信号レバー30が(II)の位置に近づくと、スター
トレバー9に設けられている補助レバー8の下面8aに
ミラー上昇信号レバー30が当接し、この補助レバー8
を押し上げていく、このため、スタートレバー9はスプ
リングの付勢力に抗して反時計方向に回転して爪!2に
当接し、さらに時計方向に回転させ、爪12の先端を図
中破線で示した位置、すなわち型車10の回転軌道内に
臨ませる。
Now, the mirror raising lever 30 is interlocked with raising the mirror (
Assume that the mirror moves upward from position T) and reaches position (II) where the mirror has been raised completely. When the mirror up signal lever 30 approaches the position (II), the mirror up signal lever 30 comes into contact with the lower surface 8a of the auxiliary lever 8 provided on the start lever 9, and this auxiliary lever 8
As a result, the start lever 9 rotates counterclockwise against the biasing force of the spring and the claw! 2 and further rotated clockwise so that the tip of the pawl 12 faces the position shown by the broken line in the figure, that is, within the rotation orbit of the mold wheel 10.

型車10はモータ1によって反時計方向に回転している
ため、爪12の先端は型車10の先端に係合し、型車1
0の矢印方向の回転に合せて、爪12を゛上方向に押し
上げる。これにしたがって、先幕レバー14を軸31を
中心に反時針方向に回転させる。すなわち、ビン15は
溝16に案内されて、先幕羽根と係合しながら押上げら
れて行き、先幕6は下方から上方向に開いていく。ビン
15が溝16の端部17の位置に来たときに、第2図に
示すようなシャッタが全開した状態になる。
Since the mold wheel 10 is rotated counterclockwise by the motor 1, the tip of the pawl 12 engages with the tip of the mold wheel 10, and the mold wheel 1
Push the pawl 12 upward in accordance with the rotation in the direction of the arrow 0. Accordingly, the front curtain lever 14 is rotated about the shaft 31 in the counterclockwise direction. That is, the bottle 15 is guided by the groove 16 and is pushed up while engaging with the leading curtain blade, and the leading curtain 6 opens upward from below. When the bottle 15 is at the end 17 of the groove 16, the shutter is fully opened as shown in FIG.

ミラー上昇信号レバー30はスタートレバー9を押し倒
して爪12の先端を押しつけ、爪12が型車10によっ
て上方へ移動させると、レバー30はさらに上方へ滑り
ながら移動し、第2図に示す(III)の位置に達して
静止する。このとき、スタートレバー9は初期位置に戻
されており、爪12が戻ってきた時に移動を妨げないよ
うに退避している状態である。
The mirror lift signal lever 30 pushes down the start lever 9 and presses the tip of the pawl 12, and when the pawl 12 is moved upward by the mold wheel 10, the lever 30 further slides upward, as shown in FIG. ) and stop. At this time, the start lever 9 has been returned to its initial position and is in a retracted state so as not to impede movement when the claw 12 returns.

型車10が爪12と係合した状態で溝16を上方向に移
動させ、端部17に達したとき、フ・、り21によって
、先幕レバー14の後端部19を係止し、ビン15が端
部17の位置に保持される。
While the mold wheel 10 is engaged with the pawl 12, the groove 16 is moved upward, and when it reaches the end 17, the rear end 19 of the leading curtain lever 14 is locked by the flap 21. Bin 15 is held in position at end 17.

すなわち、先幕が走行を終了し、全開状態で保持される
ことになる。
In other words, the leading curtain ends its travel and is kept fully open.

全開後も型車10は矢印方向に回転するので、爪12を
スプリング13に抗してさらに倒して行くが、ビン15
の位置は変らない。第2図に破線で示すように((P)
の位置)、型車10の先端が通過して爪12の先端から
離れてしまうと、型車10の次の爪の先端が来る間にス
プリング13の復元力により、爪12は(Q)の位置に
戻される。さらに、モータ1は停止せず、そのまま矢印
方向に回転を継続する。
Since the mold wheel 10 continues to rotate in the direction of the arrow even after being fully opened, the pawl 12 is pushed down further against the spring 13, but the bottle 15
The position of does not change. As shown by the broken line in Figure 2 ((P)
position), when the tip of the mold wheel 10 passes and leaves the tip of the pawl 12, the restoring force of the spring 13 moves the pawl 12 to the position (Q) before the tip of the next pawl of the mold wheel 10 arrives. returned to position. Furthermore, the motor 1 does not stop and continues to rotate in the direction of the arrow.

シャッタ時間を決定するトリガスイッチ20は先幕を駆
動する先幕レバー14の後端部19の移動により開閉す
るスイッチであり、これをトリガ信号として時間の計数
を行なう基準としている。
The trigger switch 20 that determines the shutter time is a switch that opens and closes by moving the rear end 19 of the front curtain lever 14 that drives the front curtain, and uses this as a trigger signal as a reference for counting time.

このため、先幕レバー14が反時針方向に動いた瞬間に
スイッチ20がオンされて時定回路が時間計数され、あ
らかじめ設定されたシャッタ時間に達するとマグネット
23に電流が流れ、可動片24aを吸着しようとして後
幕駆動レバー24が時計方向に回転する。後幕駆動レバ
ー24が回転すると先端部に設けられた爪34の先端が
型車11の爪に係合し、型車11の矢印方向の回転に合
わせて後幕駆動レバー24を上昇させていく。
Therefore, the moment the front curtain lever 14 moves counterclockwise, the switch 20 is turned on and the timer circuit counts the time, and when the preset shutter time is reached, a current flows through the magnet 23, causing the movable piece 24a to move. The trailing curtain drive lever 24 rotates clockwise in an attempt to attract it. When the trailing curtain drive lever 24 rotates, the tip of a pawl 34 provided at the tip engages with the pawl of the mold wheel 11, and the trailing curtain drive lever 24 is raised in accordance with the rotation of the mold wheel 11 in the direction of the arrow. .

後幕レバー25の先端のビン26は溝27を介して後幕
羽根と係合し上方向に移動させる。このため、後幕35
を上方向に上げシャッタを閉じていく。後幕が走行を終
了して幕が完全に閉じるとこの位置で後幕レバー25の
先端部がフックレバー29に係止され、スプリング36
の復元力により、後幕が戻されることを防止している。
The pin 26 at the tip of the trailing curtain lever 25 engages with the trailing blade through a groove 27 and moves it upward. For this reason, the second curtain 35
Raise the button upward to close the shutter. When the trailing curtain finishes traveling and is completely closed, the tip of the trailing curtain lever 25 is locked to the hook lever 29 at this position, and the spring 36
The restoring force prevents the trailing curtain from being pulled back.

第3図は後幕が完全に閉じようとする時点の状態を示し
た図である。
FIG. 3 is a diagram showing the state at the time when the trailing curtain is about to close completely.

ここで、マグネット23と吸着片24aの関係は後幕の
閉成信号により、マグネット23に電流が流れ吸着片2
4aに吸着力が働き近づくが爪34の先端が型車11に
掛ると、型車11の回転に合せ吸着片24aはマグネッ
ト23に対して強く引き離される。従来のように、吸着
保持しているような使用方法ではなく、このマグネット
23は爪34を型車11と噛み合わせるだけの働きに使
用している点が本発明の特徴である。
Here, the relationship between the magnet 23 and the attracting piece 24a is such that a current flows through the magnet 23 and attracting the attracting piece 24a in response to a trailing curtain closing signal.
4a approaches, but when the tip of the pawl 34 hangs on the mold wheel 11, the suction piece 24a is strongly pulled away from the magnet 23 as the mold wheel 11 rotates. A feature of the present invention is that the magnet 23 is used only to engage the pawl 34 with the mold wheel 11, rather than being used to hold it by suction as in the past.

また、第3図に示すように爪34が型車11と噛み合う
と、型車11の回転にしたがって爪34に作用する力点
が変化して行くため、後幕駆動レバー24の軸に作用す
る力は後幕レバー25を反時計方向に回転させる。後幕
駆動レバー24は最終点まで来るとストッパビン37に
よって停止させられるため、爪34は型車11の回転に
合せて倒れ、型車11の爪が離脱する位置で滑り始める
(第3図(W)の位置)。爪34が滑り始めると後幕駆
動レバー24の復元力により型車11の表面を爪34が
滑りながら第1図の位置に戻る。
Furthermore, when the pawl 34 engages with the mold wheel 11 as shown in FIG. 3, the point of force acting on the pawl 34 changes as the mold wheel 11 rotates, so that the force acting on the shaft of the trailing curtain drive lever 24 changes. rotates the trailing curtain lever 25 counterclockwise. When the trailing blade drive lever 24 reaches the final point, it is stopped by the stopper pin 37, so the pawl 34 falls down in accordance with the rotation of the mold wheel 11, and begins to slide at the position where the pawl of the mold wheel 11 leaves (see Fig. 3 (W). )Position of). When the pawl 34 begins to slide, the pawl 34 slides on the surface of the mold wheel 11 due to the restoring force of the trailing blade drive lever 24 and returns to the position shown in FIG.

後幕が走行を完了すると、ビン26が溝27の上端部2
8の位置に来たとき、後幕レバー25によって解除レバ
ー22の先端が当り、この解除レバー22を反時計方向
に回転させる。このため、解除レバー22の他の先端は
フック21を押し先基レバー14の拘束を解く。この時
点にはシセッタ作動が終了しているため、先幕が戻って
も良いので、先幕レバー14はスプリング18の復元力
により第1図の位置に戻り、先幕は上から下へ移動して
開始位置に戻る。
When the trailing curtain completes its travel, the bin 26 is placed at the upper end 2 of the groove 27.
When it reaches position 8, the tip of the release lever 22 comes into contact with the trailing curtain lever 25, and the release lever 22 is rotated counterclockwise. Therefore, the other tip of the release lever 22 pushes the hook 21 and releases the restraint of the tip lever 14. At this point, since the scissor operation has been completed, it is okay for the front curtain to return, so the front curtain lever 14 returns to the position shown in Fig. 1 due to the restoring force of the spring 18, and the front curtain moves from top to bottom. to return to the starting position.

一方、−眼レフカメラの機構として、シャッタ終了信号
によりミラーが下がるが、ミラー信号レバー30は(I
II)の位置からスタートレバー9を倒すことなく下の
方に移動して行き、フック29を押しスタート位置に戻
る。このため、後幕レバー25の係止がとかれ後幕レバ
ー25はスタート位置、すなわち第1図の撮影開始位置
に戻ることになる。
On the other hand, as a mechanism of an eye reflex camera, the mirror is lowered by the shutter end signal, but the mirror signal lever 30 is
From the position II), move the start lever 9 downward without tilting it, and press the hook 29 to return to the start position. Therefore, the trailing curtain lever 25 is unlocked and returns to the starting position, that is, the photographing start position shown in FIG. 1.

以上詳しく説明したように本発明によれば、モータの立
ち上り時間経過後の安定した回転状態でシャッタ走行を
開始するのでシャッタ走行の信頼性が向上し、またフィ
ルムの巻上げ時と別にシャッタ走行を行なうのでモータ
への負担が軽減され、モータの小形化が図れる。
As explained in detail above, according to the present invention, shutter operation is started in a stable rotational state after the motor start-up time has elapsed, so reliability of shutter operation is improved, and shutter operation is performed separately from film winding. Therefore, the load on the motor is reduced and the motor can be made smaller.

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

第1図、第2図および第3図は本発明による一眼レフカ
メラのモータ駆動シャッタの実施例を示す機構図であっ
て、それぞれカメラの作動前のシャッタが閉じた状態を
示した図、シャッタが全開した状態を示した図およびシ
ャッタの後幕が閉じようとする時点の状態を示した図で
ある。 1・・・モータ     2・・・傘歯車3・・・傘歯
車     4・・・歯車5・・・歯車      6
・・・先幕7・・・シャツタ枠   8・・・補助レバ
ー9・・・スタートレバー 10・・・型車11・・・
型車     12・・・爪13・・・スプリング  
14・・・先幕レバー15・・・ビン     16・
・・溝17・・・先端部    18・・・スプリング
19・・・後端部    20・・・スイッチ21・・
・フック    22・・・解除レバー23・・・マグ
ネット  24・・・後幕駆動レバー25・・・後幕レ
バー  26・・・ビン27・・・溝      28
・・・先端部29・・・フックレバー 30・・・ミラー上昇信号レバー 35・・・後幕     36・・・スプリング37川
ストツパビン 特許出願人  株式会社 ヤ シ ヵ 代理人 弁理士  井 ノ ロ  壽
FIGS. 1, 2, and 3 are mechanical diagrams showing an embodiment of the motor-driven shutter of a single-lens reflex camera according to the present invention, and respectively show the shutter in a closed state before the camera is operated, and FIG. FIG. 2 is a diagram showing a state in which the shutter is fully open, and a diagram showing a state at a time when the rear curtain of the shutter is about to close. 1... Motor 2... Bevel gear 3... Bevel gear 4... Gear 5... Gear 6
...Front curtain 7...Shutter frame 8...Auxiliary lever 9...Start lever 10...Model car 11...
Model wheel 12...Claw 13...Spring
14... Leading curtain lever 15... Bin 16.
...Groove 17...Tip 18...Spring 19...Rear end 20...Switch 21...
・Hook 22... Release lever 23... Magnet 24... Trailing curtain drive lever 25... Trailing curtain lever 26... Bin 27... Groove 28
...Tip 29...Hook lever 30...Mirror up signal lever 35...Rear curtain 36...Spring 37 Kawastopabin Patent applicant Yashika Co., Ltd. Agent Patent attorney Hisashi Inoro

Claims (1)

【特許請求の範囲】[Claims] 一眼レフカメラにおいて、カメラに内蔵されたモータに
より駆動される第一および第二の型車と、前記第一の型
車と係合して先幕を走行させる第一のクラッチ機構と、
前記先幕の走行開始を検出したのち設定時間経過後作動
する電磁装置と、前記電磁装置に付勢されて前記第二の
型車と係合して後幕を走行させる第二のクラッチ機構と
からなり、前記モータの立ち上り時間でミラーを上昇さ
せ、前記ミラーの上昇終了信号により前記第一の型車を
前記第一のクラッチ機構に係合して先幕を走行させ、前
記先幕の走行開始を前記電磁装置が検出して設定時間経
過後前記第二の型車を前記第二のクラッチ機構に係合し
て後幕を走行させるように構成したことを特徴とする一
眼レフカメラのモータ駆動シャ・2り。
In a single-lens reflex camera, first and second mold wheels driven by a motor built into the camera, and a first clutch mechanism that engages with the first mold wheel to drive a leading curtain;
an electromagnetic device that operates after a set time has elapsed after detecting the start of running of the leading curtain; and a second clutch mechanism that is energized by the electromagnetic device to engage with the second type wheel and cause the trailing curtain to run. The mirror is raised by the rising time of the motor, and the first model car is engaged with the first clutch mechanism by the mirror raising end signal to cause the leading curtain to run; A motor for a single-lens reflex camera, characterized in that said electromagnetic device detects the start and, after a set time has elapsed, engages said second model car with said second clutch mechanism and causes a trailing curtain to run. Two driving shafts.
JP7366982A 1982-04-30 1982-04-30 Motor driving shutter of single-lens reflex camera Granted JPS58190930A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7366982A JPS58190930A (en) 1982-04-30 1982-04-30 Motor driving shutter of single-lens reflex camera

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7366982A JPS58190930A (en) 1982-04-30 1982-04-30 Motor driving shutter of single-lens reflex camera

Publications (2)

Publication Number Publication Date
JPS58190930A true JPS58190930A (en) 1983-11-08
JPH0370210B2 JPH0370210B2 (en) 1991-11-06

Family

ID=13524878

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7366982A Granted JPS58190930A (en) 1982-04-30 1982-04-30 Motor driving shutter of single-lens reflex camera

Country Status (1)

Country Link
JP (1) JPS58190930A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62223735A (en) * 1986-03-26 1987-10-01 Copal Co Ltd Electromagnetic driving shutter

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55106437A (en) * 1979-02-10 1980-08-15 Olympus Optical Co Ltd Focal plane shutter

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55106437A (en) * 1979-02-10 1980-08-15 Olympus Optical Co Ltd Focal plane shutter

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62223735A (en) * 1986-03-26 1987-10-01 Copal Co Ltd Electromagnetic driving shutter

Also Published As

Publication number Publication date
JPH0370210B2 (en) 1991-11-06

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