JPS5949568B2 - Camera with interchangeable lenses - Google Patents
Camera with interchangeable lensesInfo
- Publication number
- JPS5949568B2 JPS5949568B2 JP48081948A JP8194873A JPS5949568B2 JP S5949568 B2 JPS5949568 B2 JP S5949568B2 JP 48081948 A JP48081948 A JP 48081948A JP 8194873 A JP8194873 A JP 8194873A JP S5949568 B2 JPS5949568 B2 JP S5949568B2
- Authority
- JP
- Japan
- Prior art keywords
- aperture
- control
- automatic
- blocking
- setting
- 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
Landscapes
- Exposure Control For Cameras (AREA)
Description
【発明の詳細な説明】
この発明は、シャッター速度自動制御での撮影と、絞り
自動制御またはプログラム自動制御(以下それぞれ、シ
ャッター速度EE、絞りEE、プログラムEEと略記す
る。DETAILED DESCRIPTION OF THE INVENTION The present invention provides photography using automatic shutter speed control, automatic aperture control, or automatic program control (hereinafter abbreviated as shutter speed EE, aperture EE, and program EE, respectively).
)での撮影とが選択的に行え、かつレンズ交換が可能な
カメラに関する。従来、この種のレンズ交換式カメラと
しては、シヤツタ一速度EEと絞りEEとを交換レンズ
の絞りリングの操作によつて切換え設定できるようにし
たものが、***第2133212号公開特許明細書で知
られている。この従来のカメラでは、絞りリングを特定
位置に設定すると、連動機構を介してカメラ本体内の制
御回路が絞りEE状態に切換わり、また絞りリングを前
記特定位置以外に設定すると、制御回路がシヤツタ一速
度EE状態に切換わるように構成されている。このよう
なカメラでは、一台で複数のモードでの露出制御が可能
である点で優れてはいるが、その反面、構造が複雑にな
る傾向がある。This invention relates to a camera that can selectively take pictures in ) and has interchangeable lenses. Conventionally, this type of interchangeable lens camera is known from West German Published Patent No. 2133212, in which the shutter speed EE and aperture EE can be switched and set by operating the aperture ring of the interchangeable lens. It is being In this conventional camera, when the aperture ring is set to a specific position, the control circuit within the camera body switches to the aperture EE state via an interlocking mechanism, and when the aperture ring is set to a position other than the specific position, the control circuit switches to the shutter state. It is configured to switch to a single speed EE state. Although such cameras are superior in that a single camera can control exposure in multiple modes, on the other hand, their structures tend to be complex.
すなわち、前記従来のカメラの場合、露出制御回路がカ
メラ本体内に設けられているのに対し、その回路の切換
えを交換レンズの絞りリングの操作により行うため、交
換レンズの絞りリングとカメラ本体内露出制御回路の切
換スイツチとの間の連動機構が不可欠であり、交換レン
ズとカメラ本体との継ぎの部分の構成が複雑化する欠点
がある。この発明は、交換レンズとカメラ本体との継ぎ
の部分における露出制御回路切換えのための連動機構が
不要で構造が簡単化し、しかもシヤツタ一速度EEでの
撮影と、絞りEEまたはプログラムEEでの撮影とが択
一的に行える、レンズ交換が可能なカメラを提供するこ
とを目的としており、カメラ本体側に露出制御モードを
択一的に設定する設定部材を設け、同じくカメラ本体の
内部に設けられた連動機構を介して、前記設定部材によ
るモード設定に対応した露出制御回路の切換えが行える
ようにしたことを特徴としている。In other words, in the case of the conventional camera described above, the exposure control circuit is provided inside the camera body, but since the circuit is switched by operating the aperture ring of the interchangeable lens, there is a connection between the aperture ring of the interchangeable lens and the camera body. An interlocking mechanism between the exposure control circuit and the changeover switch is essential, and the disadvantage is that the structure of the joint between the interchangeable lens and the camera body becomes complicated. This invention simplifies the structure by eliminating the need for an interlocking mechanism for switching the exposure control circuit at the joint between the interchangeable lens and the camera body, and allows shooting at a single shutter speed of EE and shooting at aperture EE or program EE. The purpose of this project is to provide a camera with interchangeable lenses that can be selectively set. The exposure control circuit is characterized in that the exposure control circuit can be switched in accordance with the mode setting by the setting member via the interlocking mechanism.
なお、一般に絞りEEまたはプログラムEEでの撮影に
際しては、交換レンズの絞りリングを、利用可能な絞り
値の範囲を拡げるために特定位置(例えば最小絞りがプ
リセツトされる位置)ないし特定範囲(例えば特定の小
絞りがプリセツトされる位置から最小絞りまでの間)に
設定するのが望ましいが、前記の如くカメラ本体に設け
た設定部材により露出制御モードの切換えが行われる場
合には、絞りリングのその特定位置ないし特定範囲への
設定操作を絞りEEまたはプログラムEEでの撮影を行
うに際して忘れる恐れがある。Generally, when shooting with aperture EE or program EE, the aperture ring of the interchangeable lens is moved to a specific position (for example, the position where the minimum aperture is preset) or a specific range (for example, a specific range) in order to expand the range of available aperture values. It is desirable to set the exposure control mode between the preset position of the small aperture and the minimum aperture. There is a risk that the setting operation for a specific position or specific range may be forgotten when photographing with aperture EE or program EE.
このため、この発明は、そのような事態に対する対策を
講じたレンズ交換が可能なカメラをも提供することを他
の目的としている。実施例について説明すれば、第1図
、第2図、および第3図に、一眼レフレツクスカメラに
おいて、この発明のマニユアル、シヤツタ一速度EEl
絞りEElおよびプログラムEEの各撮影を、切換え操
作によつて可能となすカメラボデイ側の作動機構を例示
しており、その中で、第3図は、カメラの正面側下方か
らみた斜面図であつて、各部材の作動方向が、第1図、
第2図に対して、反対勝手となる状態で示してある。Therefore, another object of the present invention is to provide a camera with interchangeable lenses that takes measures against such situations. To explain an embodiment, FIGS. 1, 2, and 3 show a manual for a single-lens reflex camera, a shutter speed EEl, etc.
This figure shows an example of the operating mechanism on the camera body side that enables each of the aperture EEl and program EE photography by switching operations. In this figure, Figure 3 is a perspective view of the camera as seen from the lower front side. The operating direction of each member is as shown in Fig. 1.
It is shown in the opposite position relative to FIG.
第1図において、巻上げレバー1と、巻上げ歯車2とは
、それぞれに固設した胴部1a,2aの対向面間に形成
した鋸歯状部1b,2b、或いは、他の適宜の手段を介
して一方クラツチ式に係合しており、巻上げレバー1の
反時計方向回動のみに連動して、巻上げ歯車2が回転さ
れ、歯車3、クラツチ歯車4,5、および先幕巻げ歯車
6、後幕巻上げ歯車7を連動回転せしめ、先幕歯車8と
、後幕歯車9とを、それぞれ反時計方向に回転させて、
シヤツタ一先幕10と、シヤツタ一後幕11を、それぞ
れ巻上げ軸8aと、9aとに巻取る。In FIG. 1, a winding lever 1 and a winding gear 2 are connected to each other through sawtooth portions 1b and 2b formed between opposing surfaces of body portions 1a and 2a that are fixed to each other, or through other appropriate means. On the other hand, it is engaged in a clutch type, and the winding gear 2 is rotated in conjunction only with the counterclockwise rotation of the winding lever 1, and the winding gear 2 is rotated, and the gear 3, the clutch gears 4 and 5, the leading winding gear 6, and the rear curtain winding gear 6 are rotated. The curtain winding gear 7 is rotated in conjunction with each other, and the leading curtain gear 8 and trailing curtain gear 9 are respectively rotated counterclockwise.
The first shutter curtain 10 and the first shutter curtain 11 are wound onto winding shafts 8a and 9a, respectively.
前記先・後幕10,11が巻取られてチヤージ位置に達
すると、先幕巻上げ歯車6に植設されたピン6bに、軸
13をもつて枢支した先幕係止部材12の鈎部12aが
係合して、シヤツタ一をチヤージ状態に係止する。この
チヤージ操作において、後幕巻上げ歯車7は、そのピン
7aを、歯車6上のピン6aに押されて時計方向に回動
するものであるが、チヤージ位置に達すると、吸着部材
14の鈎部14aが、歯車7の反時計方向回動における
該歯車7上に設けたピン7bの進路に臨出して、該ピン
7bに係合する。When the leading and trailing curtains 10, 11 are wound up and reach the charge position, the hook portion of the leading curtain locking member 12, which is pivotally supported with a shaft 13, on a pin 6b implanted in the leading curtain winding gear 6. 12a engages to lock the shutter in the charged state. In this charge operation, the trailing curtain winding gear 7 rotates its pin 7a clockwise by being pushed by the pin 6a on the gear 6, but when it reaches the charge position, the hook of the suction member 14 14a comes out into the path of the pin 7b provided on the gear 7 during counterclockwise rotation of the gear 7 and engages with the pin 7b.
吸着部材14は、軸15を介して腕16と同体に回動し
、ばね17により、軸15を中心に時計方向に付勢され
、先端に取付けた吸着片18を、シヤツタ一用電磁石1
9の吸着面に対峙させている。The suction member 14 rotates together with the arm 16 via a shaft 15, is biased clockwise around the shaft 15 by a spring 17, and attracts the suction piece 18 attached to the tip to the shutter electromagnet 1.
It faces the suction surface of 9.
そして前記チヤージ操作における先幕巻上げ歯車6の時
計方向回動のほゾ最終行程で、腕16を、歯車6上のピ
ン6cに押されて、ばね17に抗して反時計方向に回動
させられ、その回動の終り近くで、前記鈎部14aを、
後幕巻上げ歯車7のピン7bに係合し、そして、吸着片
18を、電磁石19の吸着面に押しつけるか、又は近接
させることにより、チヤージ動作が完了する。なお、前
記のチヤージ操作により、図示しないフイルム系が巻上
げられ、同時に、ミラー降下用部材20が、その軸21
を中心に、図示しない機構により作動させられ、その下
端部20aを、止め部材22に係合せしめられ、チヤー
ジ位置に係止される。Then, in the final stroke of clockwise rotation of the front curtain winding gear 6 in the charge operation, the arm 16 is pushed by the pin 6c on the gear 6 and rotates counterclockwise against the spring 17. near the end of the rotation, the hook portion 14a is
The charging operation is completed by engaging the pin 7b of the trailing curtain winding gear 7 and pressing the attraction piece 18 against or bringing it close to the attraction surface of the electromagnet 19. By the above charge operation, a film system (not shown) is wound up, and at the same time, the mirror lowering member 20 is moved toward its shaft 21.
The lower end portion 20a is engaged with the stopper member 22 to be locked in the charge position.
それと共に、ミラー駆動系のチヤージも完了する。止め
部材22は、軸23に枢着され、ばね24で反時計方向
に付勢されており、前記係合によつて、ミラー降下用部
材20に押されて時計方向に回動され、ストツパ一25
に当つて止つている。クラツチ歯車4,5は、チヤージ
操作において、それぞれの対向面に突設されているピン
4a,5aが係合して同動するものであり、クラツチ歯
車4は、上下に移動可能に支持されており、シヤツター
レリーズに連動して下動させられて、前記ピン4aと5
aとの係合が外される構成である。At the same time, charging of the mirror drive system is also completed. The stop member 22 is pivotally attached to a shaft 23 and biased counterclockwise by a spring 24. Due to the engagement, the stop member 22 is pushed by the mirror lowering member 20 and rotated clockwise, and the stop member 22 is rotated clockwise. 25
It hits and stops. During a charge operation, the clutch gears 4 and 5 move together when pins 4a and 5a protruding from their respective opposing surfaces engage with each other, and the clutch gear 4 is supported so as to be movable up and down. The pins 4a and 5 are moved downward in conjunction with the shutter release.
This is a configuration in which the engagement with a is released.
第1図、第2図、第3図は、いずれもンヤツターチヤー
ジが完了している状態を示しており、シヤツタ一釦26
を押下すると、レリーズ部材27の上端に固設した腕2
8が押されて、レリーズ部材27と共に下動し、腕28
の二又部28aと係合するクラツチ歯車4が下動させら
れて、クラツチ歯車5とのピンクラツチ結合を解除する
と共に、レリーズ部材27上のピン27aが、主係止部
材29の上縁に当つて、該部材29を押下する。主係止
部材29は、軸30に枢着され、ばね31で反時計方向
に付勢されて、ストツパ一32で図示の位置に係止され
ており、前記押下によつて時計方向に回動され、第3図
に示されている如く、その先端29aを、尾端33aに
係合して図示の位置に係止していた、絞り作動系の吸着
片押圧部材33の係止を解除する。吸着片押圧部材33
は、軸34により枢着され、ばね35によつて時計方向
(第3図)に付勢され、チヤージ状態において図示の位
置に係止されているが、前記係止解除によつて、軸34
のまわりを時計方向に回動する。Figures 1, 2, and 3 all show the state in which the shutter charge has been completed, and the shutter button 26 is
When pressed, the arm 2 fixed to the upper end of the release member 27
8 is pushed, moves downward together with the release member 27, and the arm 28
The clutch gear 4, which engages with the forked portion 28a of Then, press down the member 29. The main locking member 29 is pivotally attached to a shaft 30, biased counterclockwise by a spring 31, and locked at the position shown in the figure by a stopper 32, and rotates clockwise when pressed. Then, as shown in FIG. 3, the suction piece pressing member 33 of the throttle operation system, whose tip 29a is engaged with the tail end 33a and is locked in the illustrated position, is released. . Adsorption piece pressing member 33
is pivotally connected to the shaft 34, biased clockwise (FIG. 3) by a spring 35, and is locked at the position shown in the figure in the charging state.
Rotate clockwise around the
カメラ本体の外表部には、第1図に示す如く、前記マニ
ユアル、シヤツタ一速度EEl絞りEEおよびプログラ
ムEEの各露出制御モードを、択一的に設定指示する設
定指示部材36が軸37上に固設されて露出しており、
この部材36が、シヤツタ一EE撮影位置Sから、第1
,2図に示す如きマニユアル撮影位置Mに設定されてい
ると、軸37上に、前記部材36と同体に回動する切換
え操作部材38が、切換え部材39と無関係の位置にあ
つて、切換え部材39は、その付勢ばね40により、第
2図、第3図に示す位置にある。As shown in FIG. 1, on the outer surface of the camera body, there is a setting instruction member 36 on a shaft 37 for selectively instructing the exposure control modes of manual, shutter speed, EEl, aperture EE, and program EE. Fixed and exposed,
This member 36 moves from the shutter EE photographing position S to the first
, 2, the switching operation member 38, which rotates together with the member 36 on the shaft 37, is in a position unrelated to the switching member 39, 39 is in the position shown in FIGS. 2 and 3 due to its biasing spring 40.
そして該切換え部材39は、それに固設したピン39a
により、可動スイツチ部材41と、制動部材45とを、
第3図に示す位置にシフトしている。すなわち、可動ス
イツチ部材41は、軸42に枢着され、ばね43で反時
計方向に付勢されて、その腕41aを、切換え部材39
上のピン39aに係接し、該部材39の移動に連動し得
る如くなされており、第4〜7図に示す制御回路のスイ
ツチS7,S8、およびS,のスイツチ接点を形成した
スイツチ基板44に対峙し、そして、前記各スイツチ接
点に対する摺動接片S7−A,s8−a、およびS,−
aを有し、前記位置では、第4図、および第5図に示す
如く、スイツチS7のb接点を閉じてc接点を開き、ス
イツチS,を閉じ、 スイツチS,のb接点を閉じてe
接点を開いている。The switching member 39 has a pin 39a fixed thereto.
As a result, the movable switch member 41 and the braking member 45 are
It has shifted to the position shown in FIG. That is, the movable switch member 41 is pivotally connected to a shaft 42 and biased counterclockwise by a spring 43 to move its arm 41a toward the switching member 39.
A switch board 44 is connected to the upper pin 39a and is adapted to be linked with the movement of the member 39, and forms the switch contacts of the switches S7, S8, and S of the control circuit shown in FIGS. Sliding contact pieces S7-A, s8-a, and S, - facing each other and corresponding to the respective switch contacts.
In the above position, as shown in FIGS. 4 and 5, the b contact of switch S7 is closed and the c contact is opened, switch S is closed, and the b contact of switch S is closed and e is
Contacts are open.
すなわち、スイツチS7とS,は切換えスイツチである
。制動部材45は、軸46に枢支され、ばね47で時計
方向に付勢されて、その腕45aを前記ピン39aに係
接して、切換え部材39に連動する如くなされている。That is, switches S7 and S are changeover switches. The braking member 45 is pivotally supported by a shaft 46, biased clockwise by a spring 47, and has its arm 45a engaged with the pin 39a so as to be interlocked with the switching member 39.
制動部材45上には、軸46に枢支されたラチエツト歯
車48、該歯車48と同体に回動する歯車49、歯車4
9に中間歯車50を介して噛合し、制動部材45上の軸
51に支持されて、ばね52により時計方向に付勢され
て、制動力を与えられた制動歯車53が配置され、そし
て歯車53に、該歯車53と同体化した舌状部材54を
設けてある。On the braking member 45, a ratchet gear 48 is pivotally supported on a shaft 46, a gear 49 rotates together with the gear 48, and a gear 4.
A braking gear 53 is disposed which meshes with the gear 9 via an intermediate gear 50, is supported by a shaft 51 on the braking member 45, is biased clockwise by a spring 52, and is given a braking force. A tongue-like member 54 is provided integrally with the gear 53.
舌状部材54は、絞り作動部材55のピン55aに係脱
可能に配置され、制動部材45の第3図示の位置では、
絞り作動部材55の絞り込み作動(第3図において右行
)における前記ピン55aの進路から避退している。The tongue member 54 is removably arranged on the pin 55a of the throttle actuating member 55, and in the third illustrated position of the brake member 45,
It is evacuated from the path of the pin 55a during the narrowing operation of the narrowing operation member 55 (rightward in FIG. 3).
一方、第4図、第5図に示される電気回路の主スィツチ
S1は、シヤツターレリーズにより、シヤツター釦26
、若しくはレリーズ部材27、主係止部材29等のレリ
ーズ関連部材のいずれかに連動して閉成されるようにし
てある。On the other hand, the main switch S1 of the electric circuit shown in FIGS. 4 and 5 is activated by the shutter release button 26.
, or in conjunction with any of the release-related members such as the release member 27 and the main locking member 29.
そして、マニユアル、或いはシヤツター速度EE撮影に
、前記設定指示部材36が設定された状態では、スイツ
チS7が、そのb接点を閉じ、c接点を開いているので
、シヤツター用電磁石19が、吸着片18を吸着して、
吸着部材14をそのばねITに抗して電気的に係止し、
絞り用電磁石56は励磁されない。従つて、吸着片押圧
部材33が時計方向に回動すると、それまで該部材33
の先端33bにより背後から押されて、吸着部5Taを
、前記電磁石56の吸着面に機械的に押しつけられ、或
いは近接させられていた絞り用吸着部材57が、その付
勢ばね58の作用によつて、前記押圧部材33に追従し
、軸59を中心に反時計方向に回動する。When the setting instruction member 36 is set to manual or shutter speed EE photography, the switch S7 closes its b contact and opens its c contact, so that the shutter electromagnet 19 moves the attraction piece 18 by adsorbing
Electrically locking the adsorption member 14 against the spring IT,
The aperture electromagnet 56 is not excited. Therefore, when the suction piece pressing member 33 rotates clockwise, the member 33
The diaphragm suction member 57, which had been pushed from behind by the tip 33b of the electromagnet 56 to mechanically press the suction part 5Ta against the suction surface of the electromagnet 56 or was brought close to it, is now moved by the action of the urging spring 58. Then, it follows the pressing member 33 and rotates counterclockwise about the shaft 59.
絞り用吸着部材5Tと同軸59上には、さらに制動係止
部材60が枢着され、該部材60は、図示しないばねに
より反時計方向に付勢されていて、そのピン60aを、
絞り用吸着部材5Tの一辺に係接している。従つて、絞
り用吸着部材57が反時計方向に回動すると、それに追
従して制動係止部材60が反時計方向に回動する。制動
係止部材60は、さらに、ピン60bと係止爪60cと
を有し、チヤージ位置にて、ピン60bにより、トリガ
ースイツチS5の可動接片S5−aを押して、該スイツ
チS5を閉成しており、また切換えスイツチS6の可動
接片S6−aを、そのb接点に接触せしめ、c接点を開
かせている。A brake locking member 60 is further pivotally mounted on the same axis 59 as the throttle suction member 5T, and the member 60 is biased counterclockwise by a spring (not shown), and its pin 60a is
It is engaged with one side of the aperture suction member 5T. Therefore, when the throttle suction member 57 rotates counterclockwise, the brake locking member 60 rotates counterclockwise following the rotation. The brake locking member 60 further includes a pin 60b and a locking claw 60c, and in the charge position, the pin 60b pushes the movable contact piece S5-a of the trigger switch S5 to close the switch S5. Also, the movable contact piece S6-a of the changeover switch S6 is brought into contact with its b contact to open the c contact.
そして、前記の反時計方向回動により、トリガースイツ
チS5を開くと同時に、スイツチS6のb接点を開いて
、第4,5図に破線で示す如くc接点を閉じる。そして
されに、係止爪60cを、制動部材45と同軸46上の
ラチエツト歯車48に係合せしめ、その回動を阻止する
。吸着片押圧部材33は、絞り用吸着部材57に、前記
の反時計方向回動を起こさせた後もさらに回動して、絞
り復動部材61上のピン61aに当接し、該部材61を
反時計方向に回動させる。The counterclockwise rotation opens the trigger switch S5, simultaneously opens the b contact of the switch S6, and closes the c contact as shown by the broken line in FIGS. Then, the locking pawl 60c is brought into engagement with the ratchet gear 48 on the same shaft 46 as the braking member 45 to prevent its rotation. The suction piece pressing member 33 rotates further after causing the aperture suction member 57 to rotate in the counterclockwise direction, and comes into contact with the pin 61a on the aperture return movement member 61, thereby causing the aperture member 61 to rotate. Rotate counterclockwise.
絞り復動部材61は、軸62に枢着され、ばね63によ
り時計方向に付勢されて、その先端61bを、絞り作動
部材55上のピン55bに係接し、前記ばね63の作用
で、絞り作動部材55を左方(第1,2図では右方)に
押動し、該作動部材55の折曲部55cで、交換レンズ
側の絞り作動ピン64を、それに作用するばね力(図示
せず)に抗して押動し、交換レンズの絞りを全開とした
状態で、ストツパ一65に当つて停止しているが、前記
の反時計方向回動によつて、前記押動力を解除する。絞
り作動部材55は、ばね63より弱い図示しないばねに
よつて右方(第1,2図では左方)に付勢されており、
従つて、前記押動力が解除されると、右方に摺動し、そ
の動きに追従して、絞り作動ピン64が右行(第1,2
図では左行)し、絞りリング(図示せず)によつて手動
で設定された絞り値まで絞りを絞り込む。The diaphragm return member 61 is pivotally connected to the shaft 62 and biased clockwise by a spring 63 so that its tip 61b engages the pin 55b on the diaphragm actuating member 55. The actuating member 55 is pushed to the left (rightward in FIGS. 1 and 2), and the bent portion 55c of the actuating member 55 moves the diaphragm actuating pin 64 on the interchangeable lens side by the spring force (not shown) acting on it. 1), and with the diaphragm of the interchangeable lens fully open, it stops against the stopper 65, but the above-mentioned counterclockwise rotation releases the pushing force. . The diaphragm actuating member 55 is biased to the right (left in FIGS. 1 and 2) by a spring (not shown) that is weaker than the spring 63.
Therefore, when the pushing force is released, the diaphragm actuating pin 64 slides to the right, and following this movement, the diaphragm operating pin 64 moves to the right (first, second
(left row in the figure), and the aperture is narrowed down to a manually set aperture value using an aperture ring (not shown).
一方、絞り用吸着部材57は、前記反時計方向回動にお
いて、前記絞りが決定された直後に、その瘤状部57b
を、ミラー係止部材66の尾端66aの当接し、該部材
66を時計方向に回動させる。On the other hand, in the counterclockwise rotation, the aperture adsorption member 57 immediately after the aperture is determined, the knob-like portion 57b
is brought into contact with the tail end 66a of the mirror locking member 66, and the member 66 is rotated clockwise.
ミラー係止部材66は、軸6Tに枢着され、絞り用吸着
部材5Tのばね58より弱いばね68で反時計方向に付
勢されて、ストツパ一69に当つて止つており、その状
態で、先端66bを、ミラー跳ね上げ部材70の下端7
0aに係合し、ミラー71を、第1図示の被写体観察位
置に係止しており、前記時計方向回動により、ミラー跳
ね上げ部材70の係止を解除する。The mirror locking member 66 is pivotally attached to the shaft 6T, is biased counterclockwise by a spring 68 which is weaker than the spring 58 of the aperture adsorption member 5T, and is stopped against a stopper 69, and in this state, The tip 66b is connected to the lower end 7 of the mirror flip-up member 70.
0a to lock the mirror 71 at the object observation position shown in the first figure, and the clockwise rotation releases the locking of the mirror flip-up member 70.
ミラー跳ね上げ部材70は、第1図に示す如く、ミラー
降下用部材20と同軸21に枢着され、前記係止解除に
よつて、図示しない付勢力により反時計方向に回動させ
られ、その上縁部TObで、ミラー操作ピン72を押動
し、ミラー71を撮影位置に跳ね上げる。As shown in FIG. 1, the mirror flip-up member 70 is pivotally connected to the mirror lowering member 20 on the same axis 21, and upon the release of the lock, it is rotated counterclockwise by an unillustrated biasing force, and its The upper edge TOb pushes the mirror operation pin 72 and flips up the mirror 71 to the photographing position.
ミラー跳ね上げ部材TOは、同時に、その上端部TOc
により、先幕係止部材12の尾部12bを押して、該部
材12を時計方向に回動せしめて、その鈎部12aによ
る先幕巻上げ歯車6に対するチヤージ位置での係止を解
除する。At the same time, the mirror flip-up member TO has its upper end TOc
As a result, the tail portion 12b of the leading curtain locking member 12 is pushed to rotate the member 12 clockwise, thereby releasing the locking of the leading curtain winding gear 6 by the hook portion 12a at the charge position.
クラツチ歯車4,5の係合がすでに解除されているため
に、前記巻上げ歯車6の係止解除が行われると、先幕1
0は、先幕巻取り胴73に内蔵されたばね力により,駆
動されて右方に走行し、シヤツタ一を開く。Since the clutch gears 4 and 5 have already been disengaged, when the winding gear 6 is disengaged, the front curtain 1
0 is driven by a spring force built into the leading curtain winding cylinder 73 to travel to the right and open the shutter.
一方、後幕巻上げ歯車7は、シヤツター用電磁石19に
電気的に係止されている吸着部材14に係止されており
、電磁石19が消磁するまで後幕11は係止されている
。マニユアル撮影位置に、設定指示部材36が設定され
ると、その軸37に固設したスイツチ可動接片S2−A
,s3−A,s4−A,slO−A,sl2−a、およ
びSl3−aは、第2図に示す如く、各切換えスイツチ
S2,S3,S4のb接点を閉じてc接点を開いており
、各スイツチSlO,Sl2,Sl3を開いていて、制
御回路は、第4図示の状態に接続されている。On the other hand, the trailing curtain winding gear 7 is locked to an adsorption member 14 that is electrically locked to a shutter electromagnet 19, and the trailing curtain 11 is locked until the electromagnet 19 is demagnetized. When the setting instruction member 36 is set to the manual shooting position, the switch movable contact piece S2-A fixed to the shaft 37
, s3-A, s4-A, slO-A, sl2-a, and Sl3-a, as shown in Fig. 2, the b contacts of each changeover switch S2, S3, and S4 are closed and the c contacts are open. , each switch SlO, Sl2, Sl3 is open, and the control circuit is connected to the state shown in FIG.
シヤツタ一速度EE撮影位置に、設定指示部材33が設
定されると、前記各スイツチは第5図に示す如く、切換
えスイツチS2とS3がc接点に切換えられ、切換えス
イツチS4はb接点を閉じたま\であり、スイツチSl
3が閉じ、SlO(5S12は開いたま\である。When the setting instruction member 33 is set to the shutter speed EE photographing position, the switches S2 and S3 are changed to the c contact, and the changeover switch S4 keeps the b contact closed, as shown in FIG. \ and switch SL
3 is closed, SlO (5S12 remains open\).
従つて、前記先幕10の走行後、マニユアル撮影時は、
シヤツタ一速度ダイヤルにより手動的に設定される可変
抵抗R2の抵抗値と、コンデンサーC2により、またシ
ヤツタ一速度EE撮影のときは、照度一抵抗特性γ−1
の第1受光素子75と、フイルム感度設定により手動的
に設定される可変抵抗R1との各抵抗値に従つて、コン
デンサーC1にメモリーされた後、切換えスイツチS6
がc接点に切換えられることにより、トランジスタTr
lに流れる電流量を、 コンデンサーC1のメモリー電
圧により制御して、コンデンサーC2が、ある定められ
た電圧に充電される時間を、被写体の明るさにより制御
し、マニユアル設定時間、或いはシヤツタ一速度EEに
よる時間が経過することによつて、シヤツタ一用電磁石
19の電流が遮断され、その消磁によつて、吸着部材1
4が、ばね17の作用で時計方向に回動し、後幕巻上げ
歯車7の係止を解除する。Therefore, after the front curtain 10 runs, during manual shooting,
The resistance value of variable resistor R2, which is manually set by the shutter speed dial, and the capacitor C2, and when shooting with shutter speed EE, the illuminance vs. resistance characteristic γ-1
According to each resistance value of the first light receiving element 75 of
By switching to the c contact, the transistor Tr
The amount of current flowing through the capacitor C1 is controlled by the memory voltage of the capacitor C1, and the time during which the capacitor C2 is charged to a certain voltage is controlled by the brightness of the subject, and the amount of current flowing through the capacitor C1 is controlled by the brightness of the subject. As the time elapses, the current in the shutter electromagnet 19 is cut off, and due to the demagnetization, the attraction member 1
4 rotates clockwise under the action of the spring 17, and releases the locking of the trailing curtain winding gear 7.
かくして、後幕巻取り胴74に内蔵するばね力により、
後幕11が走行してシヤツタ一を閉じる。後幕11の走
行完了信号により、止め部材22によりミラー降下用部
材20の係止が解除され、該部材20が、図示しない付
勢力により第1図において時計方向に回動し、そのピン
20bで、ミラー跳ね上げ部材70を押し、ミラー71
を、撮影位置から観察位置に復帰させる。Thus, due to the spring force built into the trailing curtain winding cylinder 74,
The rear curtain 11 runs and closes the shutter. In response to the travel completion signal of the trailing curtain 11, the mirror lowering member 20 is unlocked by the stop member 22, and the member 20 is rotated clockwise in FIG. , push the mirror flip-up member 70, and lift the mirror 71.
from the photographing position to the observation position.
ミラー降下用部材20の下端20aは、前記回動によつ
て、吸着片押圧部材33の尾端33aを押し、該部材3
3を、第3図において、反時計方向に回動させる。Due to the rotation, the lower end 20a of the mirror lowering member 20 pushes the tail end 33a of the suction piece pressing member 33, and the member 3
3 in the counterclockwise direction in FIG.
吸着片押圧部材33の反時計方向回動により、それまで
該部材33に、ピン61aを押されていた絞り復動部材
61が、ばね63の作用で追従して時計方向に回動しな
がら、その先端61bで、絞り作動部材55のピン55
bを押し、該部材55を左行(第1,2図では右行)さ
せて、その折曲部55cで、絞り作動ピン64を押動し
、交換レンズ側の絞りを全開にする。Due to the counterclockwise rotation of the suction piece pressing member 33, the aperture return member 61, whose pin 61a had been pressed by the member 33, rotates clockwise as a result of the action of the spring 63. At its tip 61b, the pin 55 of the diaphragm actuating member 55
b is pressed to move the member 55 to the left (rightward in FIGS. 1 and 2), and the bent portion 55c pushes the aperture operating pin 64 to fully open the aperture on the interchangeable lens side.
吸着片押圧部材33の前記反時計方向回動は、同時に、
その先端33bで、絞り用吸着部材57の吸着部57a
を押し、該部材57をばね58に抗して時計方向に回動
せしめ、そしてピン60aを介して制動係止部材60を
回動させ、吸着部57aを、絞り用電磁石56の吸着面
に押しつけ、または近接させる。At the same time, the counterclockwise rotation of the suction piece pressing member 33
At its tip 33b, the suction portion 57a of the aperture suction member 57
, rotate the member 57 clockwise against the spring 58, rotate the brake locking member 60 via the pin 60a, and press the attraction part 57a against the attraction surface of the aperture electromagnet 56. , or bring them into close proximity.
また制動係止部材60のピン60bにより、切換えスイ
ツチS6のc接点が開かれて、b接点が閉じられ、トリ
ガースイツチS5が閉じられる。絞り用吸着部材57の
瘤状部57bで、ばね68に抗して押されていたミラー
係止部材66は、前記部材57の時計方向回動により、
ばね68の作用で追従して反時計方向に回動し、その先
端66bを、ミラー71を観察位置に復帰させたミラー
跳ね上げ用部材70の下端70aに係合し、該部材70
を該位置にて係止する。Further, the pin 60b of the brake locking member 60 opens the c contact of the changeover switch S6, closes the b contact, and closes the trigger switch S5. By the clockwise rotation of the member 57, the mirror locking member 66, which had been pressed against the spring 68 by the bump-shaped portion 57b of the aperture adsorption member 57, is
It rotates counterclockwise following the action of the spring 68, and its tip 66b engages with the lower end 70a of the mirror flip-up member 70 that has returned the mirror 71 to the observation position.
Lock at that position.
また、吸着片押圧部材33は、絞り用吸着部材57の吸
着部57aを、絞り用電磁石56の吸着面に、押しつけ
、或いは近接させた位置で、その尾端33aを、主係止
部材29の先端29aに係止される。In addition, the suction piece pressing member 33 pushes its tail end 33a onto the main locking member 29 at a position where the suction portion 57a of the aperture adsorption member 57 is pressed against or brought close to the adsorption surface of the aperture electromagnet 56. It is locked at the tip 29a.
なお、図中76は、絞り用吸着部材57の前記位置にお
けるストツパ一を兼用するばね掛けピンである。プログ
ラムEE撮影(P位置)、絞りEE撮影(D位置)を行
うときは、設定指示部材36を回動させて各指示位置P
またはDに合せる。In addition, numeral 76 in the figure is a spring-loaded pin which also serves as a stopper at the above-mentioned position of the aperture suction member 57. When performing program EE photography (position P) and aperture EE photography (position D), rotate the setting instruction member 36 to
Or adjust to D.
これによつて、設定指示部材36と同体に回動する切換
え操作部材38の段部38aが、切換え部材39の受動
腕39bの先端に突設したピン39cに当接して、該部
材39を、ばね40に抗して左行(第3図では右行)さ
せる。As a result, the stepped portion 38a of the switching operation member 38, which rotates together with the setting instruction member 36, comes into contact with the pin 39c protruding from the tip of the passive arm 39b of the switching member 39, causing the member 39 to It is moved to the left (right in FIG. 3) against the force of the spring 40.
切換え部材39の第3図における右行により、そのピン
39aに、腕41aを係接する可動スイツチ部材41は
、ばね43の作用で反時計方向に回動し、その肩41b
を、制動係止部材60の腕60dに当接して停止する。As the switching member 39 moves to the right in FIG. 3, the movable switch member 41, which engages the arm 41a with the pin 39a, rotates counterclockwise under the action of the spring 43, and the shoulder 41b
comes into contact with the arm 60d of the brake locking member 60 and stops.
また腕45aを、前記ピン39aに係接している制動部
材45も、前記切換え部材39の動きに、ばね4Tの作
用で追従し、軸46を回動中心として時計方向に回動し
、ばね掛けピンを兼用するストツパ一ITに当つて停止
する。そして、該部材45上の制動歯車53と一体の舌
状部材54を、絞り作動部材55の、絞りを絞り込む動
作におけるピン55aの進路側において、該ピン55a
に当接させる。可動スイツチ部材41の前記作動によつ
て、該部材41に設けた摺動接片S7−A,s8−A,
s,− aが、スイッチ基板44上を摺動して、第6,
7図に実線で示す如く、切換えスイツチS7とS,をc
接点に切換え、スイツチS8を開く。The braking member 45 that engages the arm 45a with the pin 39a also follows the movement of the switching member 39 by the action of the spring 4T, rotates clockwise about the shaft 46, and is spring-loaded. It stops when it hits the stopper IT which also serves as a pin. Then, the tongue-shaped member 54 integrated with the brake gear 53 on the member 45 is placed on the path side of the pin 55a of the aperture operating member 55 during the action of narrowing down the aperture.
bring it into contact with. By the operation of the movable switch member 41, the sliding contact pieces S7-A, s8-A,
s, - a slide on the switch board 44, and the sixth,
As shown by the solid line in Figure 7, selector switches S7 and S are set to c.
Switch to contact and open switch S8.
また設定指示部材36を、絞りEE位置Dに設定すると
、該部材36と同軸3T上の各可動接片S2−A,s3
−A,s4−A,slO−A,sl2−A,sl3−a
によつて、第6図に示す如く、各切換えスイツチS2,
S3,S4が、それぞれb接点に切換えられ、各スイツ
チSIO,S,2,S,3が開かれる。また前記設定指
示部材36が、プログラムEE位置Pに設定されると、
前記各接片によつて、第T図示の如く、切換えスイツチ
S2,S3,S4が、それぞれc接点に切換えられ、ス
イツチSIOとSl2が閉じ、スイツチS,3が開かれ
たまゝである。Further, when the setting instruction member 36 is set to the aperture EE position D, each movable contact piece S2-A, s3 on the same axis 3T as the member 36
-A, s4-A, slO-A, sl2-A, sl3-a
As shown in FIG. 6, each changeover switch S2,
S3 and S4 are respectively switched to b contacts, and each switch SIO, S, 2, S, and 3 is opened. Further, when the setting instruction member 36 is set to the program EE position P,
As shown in Figure T, the switches S2, S3, and S4 are respectively switched to the c-contact, the switches SIO and S12 are closed, and the switches S and S3 remain open, as shown in FIG.
そこで、シヤツターレリーズを行うと、主スイツチS1
の閉成で、絞り用電磁石56が励磁され、絞り用吸着部
材57を吸着して該部材57を電気的に係止する。そし
て主係止部材29による吸着片押圧部材33の係止が解
除されると、該部材33が時計方向に回動し、絞り復動
部材61のピン61aに当つて該部材61を反時計方向
に回動させる。このために、絞り復動部材61に押され
て、絞りを全開にしていた絞り作動部材55が、前記押
動力を解除されて、図示しないばね付勢力により絞りを
絞り込む方向(第3図で右行)に摺動する。Therefore, when the shutter release is performed, the main switch S1
When the diaphragm electromagnet 56 is closed, the diaphragm electromagnet 56 is energized, attracts the diaphragm adsorption member 57, and electrically locks the diaphragm attraction member 57. When the main locking member 29 releases the suction piece pressing member 33, the member 33 rotates clockwise and hits the pin 61a of the aperture return member 61, pushing the member 61 counterclockwise. Rotate it. For this reason, the diaphragm actuating member 55, which had been pushed by the diaphragm return member 61 to fully open the diaphragm, is released from the pushing force and is moved in the direction of narrowing the diaphragm by the biasing force of a spring (not shown) (right side in FIG. 3). (row).
このとき、ばね52により時計方向に付勢されている制
動歯車53に設けた舌状部材54が、制動部材45によ
つて、絞り作動部材55上のピン55aに係接している
ために、絞り作動部材55の前記摺動は、前記制動歯車
53による制動力を受けて徐々に行われる。絞り作動部
材55の前記摺動に追従する絞り作動ピン64によつて
、交換レンズの絞りが徐々に絞り込まれ、第1受光素子
T5、第2受光素子78の抵抗値が、受光量が減少して
いくために高くなつていく。At this time, since the tongue-like member 54 provided on the brake gear 53, which is biased clockwise by the spring 52, is engaged with the pin 55a on the diaphragm actuating member 55 by the braking member 45, the diaphragm The sliding movement of the actuating member 55 is performed gradually under the braking force of the braking gear 53. The aperture of the interchangeable lens is gradually narrowed down by the aperture operating pin 64 that follows the sliding movement of the aperture operating member 55, and the resistance values of the first light receiving element T5 and the second light receiving element 78 decrease as the amount of light received decreases. It's getting higher in order to move on.
従つて、絞りEE撮影時に、第6図に示すように接続さ
れている制御回路の、照度一抵抗特性γ=1の第1受光
素子75と、シヤツター速度ダイヤルにより、手動的に
設定されたシヤツター速度によつて抵抗値の決まる可変
抵抗R2との抵抗値がバランス状態となり、或いは、プ
ログラムEE撮影時に、第7図に示す如く接続されてい
る制御回路の、照度一抵抗特性γ′− 0.5の第2受
光素子78と、手動的に操作されるプログラム値変換部
材(図示せず)により抵抗値の決まる抵抗R3との抵抗
値がバランス状態となることによつて、絞り用電磁石5
6の励磁電流が遮断され、該電磁石56が消磁する。Therefore, during aperture EE shooting, the shutter speed manually set by the first light receiving element 75 with the illuminance-resistance characteristic γ=1 of the control circuit connected as shown in FIG. 6 and the shutter speed dial. The resistance value with the variable resistor R2, whose resistance value is determined by the speed, is in a balanced state, or when the program EE shooting is performed, the illuminance-resistance characteristic γ'-0. 5 and the resistor R3 whose resistance value is determined by a manually operated program value conversion member (not shown) are in a balanced state, the aperture electromagnet 5
6 is cut off, and the electromagnet 56 is demagnetized.
絞り用電磁石56の消磁により、絞り用吸着部材5Tが
、その電気的係止から解放されて、そのばね58により
反時計方向に回動し、この回動に、制動係止部材60が
追従して、まずその腕60dにより、可動スイツチ部材
41の肩41bを押して、該部材41を、そのばね43
に抗して時計方向に回動せしめ、その各摺動接片S7−
A,s8−A,S,−aにより、各切換えスイツチS7
,S,を、第6,T図に破線で示す如くb接点に切換え
、スイツチS8を開く。By demagnetizing the aperture electromagnet 56, the aperture adsorption member 5T is released from its electrical lock and rotates counterclockwise by its spring 58, and the brake locking member 60 follows this rotation. First, with the arm 60d, push the shoulder 41b of the movable switch member 41 to release the member 41 from its spring 43.
each sliding contact piece S7-
A, s8-A, S, -a, each changeover switch S7
, S, are switched to b contacts as shown by broken lines in FIG. 6, T, and switch S8 is opened.
すなわち、シヤツター用電磁石19が励磁されて、吸着
部材14を電気的に係止する。前記スイツチの切換えの
直後に、制動係止部材60のピン60bが、トリガース
イツチS,を開き、切換えスイツチS6をc接点に切換
える。That is, the shutter electromagnet 19 is excited and electrically locks the attraction member 14. Immediately after switching the switch, the pin 60b of the brake locking member 60 opens the trigger switch S, and switches the changeover switch S6 to the c contact.
そしてさらに、該部材60の係止爪60cが、制動部材
45上で、制動歯車53と、歯車50,49を介しτ連
動回転しているラチエツト歯車48に係合し、該歯車4
8を介して制動歯車53の回動を停止させる。従つて、
ピン55aを、舌状部材54に接して制動されながら摺
動していた絞り作動部材55の該摺動を停止させて、交
換レンズの絞り開口径を、絞りEE時には手動で設定さ
れたシヤツター速度に適した値に、またプログラムEE
時には、選定プログラム値により決められた被写体の明
るさに適した絞り値に決定する。一方、絞り用吸着部材
57の前記作動に、ミラー作動系が既述の如く連動して
ミラー71を撮影位置に跳ね上げ、前記絞り決定後、シ
ヤツタ一先幕10を走行させる。Further, the locking pawl 60c of the member 60 engages with the braking gear 53 on the braking member 45 and the ratchet gear 48 which is rotating in conjunction with τ via the gears 50 and 49.
8, the rotation of the brake gear 53 is stopped. Therefore,
The pin 55a is moved to stop the sliding of the diaphragm actuating member 55, which has been sliding while being braked in contact with the tongue-like member 54, to adjust the diaphragm aperture diameter of the interchangeable lens to the manually set shutter speed when the diaphragm is set to EE. and the program EE
Sometimes, the aperture value is determined to be appropriate for the brightness of the subject determined by the selected program value. On the other hand, the mirror operation system is linked to the operation of the aperture adsorption member 57 as described above, flips up the mirror 71 to the photographing position, and after the aperture is determined, the shutter first curtain 10 is moved.
そして、前記絞りEE時には、シヤツタ一速度ダイヤル
の手動操作に連動する可変抵抗R2の抵抗値と、コンデ
ンサーC2とによつて決まる時間が経過すると、シヤツ
タ一用電磁石19の励磁電流を切り、プログラムEE時
には、第2受光素子78の抵抗値と、プログラム値の変
換操作と連動する可変抵抗R3の抵抗値とのバランスに
よつて、メモリー用コンデンサーC,の充電電圧が得ら
れた後、該コンデンサーC1によつてトランジスタTr
lを流れる電流量を制御することによるコンデンサーC
2の一定の充電電圧に達するまでの時間が経過すること
によつて、シヤツタ一用電磁石19の励磁電流を切り、
それぞれ、シヤツタ一後幕11の係止を解除させて、該
後幕11の走行を行わせ、シヤツタ一を閉じる。When the aperture EE is selected, the excitation current of the shutter electromagnet 19 is cut off, and the excitation current of the shutter electromagnet 19 is cut off, and the excitation current of the shutter electromagnet 19 is turned off. Sometimes, after the charging voltage of the memory capacitor C is obtained by the balance between the resistance value of the second light receiving element 78 and the resistance value of the variable resistor R3 that is linked to the conversion operation of the program value, the capacitor C1 is Transistor Tr
capacitor C by controlling the amount of current flowing through l
2, the excitation current of the shutter electromagnet 19 is cut off as the time elapses until the constant charging voltage is reached.
In each case, the locking of the rear shutter curtain 11 is released, the rear curtain 11 is allowed to run, and the shutter one is closed.
その後におけるミラー系、シヤツタ一系の作動は、既述
したマニユアル、およびシヤツタ一速度EEによる撮影
の場合と同様であるので、その説明を省略する。The subsequent operations of the mirror system and the shutter system are the same as in the case of photographing using the manual and shutter speed EE described above, and therefore the explanation thereof will be omitted.
なお、スイツチSllは、絞りが、最小絞り開口径まで
絞り込まれても、前記各作動における受光素子と、可変
抵抗との各抵抗値がバランスせず、絞り用電磁石56の
励磁電流が遮断されないような場合に、絞り作動部材5
5の作動を利用して、そのピン55bによりオフさせて
、前記電磁石56の励磁電流を切るためのものである。
以上の説明から明らかな如く、プログラムEE、或いは
絞りEEにより撮影を行つた場合、絞り作動ピン64は
、絞り作動部材55の作動に追従して、交換レンズの絞
りを徐々に絞り込んで行く。The switch Sll is configured so that even if the aperture is narrowed down to the minimum aperture diameter, the resistance values of the light receiving element and the variable resistor in each of the above operations will not be balanced, and the excitation current of the aperture electromagnet 56 will not be cut off. In this case, the diaphragm actuating member 5
5 is turned off by the pin 55b to cut off the excitation current of the electromagnet 56.
As is clear from the above description, when photographing is performed using program EE or aperture EE, the aperture operation pin 64 follows the operation of the aperture operation member 55 and gradually narrows down the aperture of the interchangeable lens.
従つて、従来から用いられている交換レンズを使用した
プログラムEE撮影、および絞りEE撮影において、そ
の交換レンズの最小絞り開口径が得られる位置まで、予
じめ絞りリングを操作しておく必要があり、もしそれを
忘れて、最大絞り開口、或いは中間の絞り開口が得られ
る位置に絞りリングが設定されていると、前記絞り作動
部材55に対する絞り作動ピン64の追従動作が、前記
絞りリングで設定された位置で係止され、それ以上、絞
り作動部材55の作動に追従することができなくなつて
しまう。すなわち、絞り作動部材55で決められる被写
体の明るさに適応した絞り開口径まで、絞りを絞り込む
ことができなくなるような事態が発生する。云い換えれ
ば、前記絞りリングを、最小絞り開口径が得られる位置
にセツトしておかないと、交換レンズの全絞り範囲で絞
りが作動せず、そのために誤撮影を行うことになる。第
8図以下に示す実施例は、プログラムEE、および絞り
EE撮影において、交換レンズの絞りリングを、最小絞
り開口径が得られる位置にセツトしなければ、前記撮影
が行えないようにしたものである。第8図において、8
0はカメラ本体であつて、周知の如く、交換レンズ81
を着服し得るようになつており、レンズの絞りを、絞り
リング82を回動することによつて設定し得る。Therefore, in program EE photography and aperture EE photography using conventionally used interchangeable lenses, it is necessary to operate the aperture ring in advance to the position where the minimum aperture diameter of the interchangeable lens is obtained. If this is forgotten and the aperture ring is set at a position where the maximum aperture aperture or an intermediate aperture aperture is obtained, the following movement of the aperture actuating pin 64 with respect to the aperture actuating member 55 will be caused by the aperture ring. It will be locked at the set position and will no longer be able to follow the operation of the diaphragm actuating member 55. In other words, a situation occurs in which the aperture cannot be narrowed down to an aperture diameter suitable for the brightness of the subject determined by the aperture operating member 55. In other words, unless the aperture ring is set at a position where the minimum aperture diameter can be obtained, the aperture will not operate over the entire aperture range of the interchangeable lens, resulting in erroneous photography. The embodiment shown in FIG. 8 and below is such that, in program EE and aperture EE photography, the aperture ring of the interchangeable lens must be set at a position where the minimum aperture aperture diameter can be obtained before the above photography can be performed. be. In Figure 8, 8
0 is the camera body, and as is well known, an interchangeable lens 81
The aperture of the lens can be set by rotating the aperture ring 82.
絞りリング82には、設定絞り値情報を、カメラ本体8
0の内部機構に伝達するための突起82aが設けられ、
本体80側には、前記突起82aに係合するピン83a
を有する絞り値情報伝達リング83が可回動に設けられ
ている。The aperture ring 82 stores setting aperture value information, and the camera body 8
A protrusion 82a for transmitting information to the internal mechanism of 0 is provided,
On the main body 80 side, there is a pin 83a that engages with the protrusion 82a.
An aperture value information transmission ring 83 is rotatably provided.
すなわち、絞りリング82を回動することによつて、絞
り値情報伝達リング83が連動して回動し、設定された
絞り値の情報を、カメラ本体80内に伝達する。第9図
に示すものは、本願第1発明の実施例であり、交換レン
ズ81(第8図)側の絞りリング82上の絞り目盛(図
示せず)と、絞り値情報伝達リング150の回動位置と
が、絞り目盛値によつて、相対的に決められた位置にあ
るようになされたカメラにおけるものであつて、絞りリ
ング82が、絞り開口径のある値より小さい口径値に設
定されていない限り、絞りEE、またはプログラムEE
位置に、切換え部材39−Bが設定されると、レリーズ
部材27がロツクされるようにしたものである。That is, by rotating the aperture ring 82, the aperture value information transmission ring 83 rotates in conjunction with the aperture value information transmission ring 83 to transmit information on the set aperture value into the camera body 80. What is shown in FIG. 9 is an embodiment of the first invention of the present application, in which the aperture scale (not shown) on the aperture ring 82 on the side of the interchangeable lens 81 (FIG. 8) and the rotation of the aperture value information transmission ring 150 are shown. In a camera where the moving position is relatively determined by the aperture scale value, the aperture ring 82 is set to an aperture value smaller than a certain value of the aperture aperture. Aperture EE or Program EE unless
When the switching member 39-B is set in the position, the release member 27 is locked.
すなわち、第9図は、切換え部材39−Bが、マニユア
ル、またはシヤツタ一速度EE位置に設定されている状
態を示すもので、この状態では、絞りリング82(第8
図)を手動操作することにより、絞り値情報伝達リング
150が、そのピン150aを介して同動し、任意の絞
り値の設定が可能であつて、マニユアル、またはシヤツ
ター速度EEによる撮影を行うことができる。That is, FIG. 9 shows a state in which the switching member 39-B is set to the manual or shutter speed EE position, and in this state, the aperture ring 82 (the eighth
By manually operating the aperture value information transmission ring 150 via its pin 150a, it is possible to set an arbitrary aperture value, and to perform photography at manual or shutter speed EE. I can do it.
前記状態から切換え操作を行つて、絞りEE、またはプ
ログラムEEへの設定を行うと、切換え部分39−Bが
左行し、その先端39fでレリーズロツク部材151の
右端部151cを押圧する。When a switching operation is performed from the above state to set the aperture EE or program EE, the switching portion 39-B moves to the left and presses the right end portion 151c of the release lock member 151 with its tip 39f.
レリーズロツク部材151は、前記押圧によつて、その
長孔151bに係入するピン152と、ロツク解除部材
153に植設されたピン153aとに規制されて左方に
摺動し、その尾部151aを、レリーズ部材2Tに植設
したピン27bの下部に進入させる。かくて、シヤツタ
ー釦26(第1図)を押圧しても、レリーズ部材2T上
のピン2Tbが、レリーズロツク部材151の尾部15
1aに当つて、レリーズ部材2Tとシヤツター釦26の
下動が阻止されて、シヤツターレリーズを行うことがで
きない。ロツク解除部材153は、軸154に枢着され
、図示しないばねで時計方向に付勢されて、先端153
bを絞り値情報伝達リング150の周面に摺接し、また
レリーズロツク部材151との間に、ばね155を張架
して、該部材151を、ピン152を中心に反時計方向
に牽引している。Due to the pressing, the release lock member 151 is regulated by the pin 152 that engages in its elongated hole 151b and the pin 153a implanted in the lock release member 153, and slides to the left, and its tail portion 151a is inserted into the lower part of the pin 27b implanted in the release member 2T. In this way, even if the shutter button 26 (FIG. 1) is pressed, the pin 2Tb on the release member 2T will not touch the tail portion 15 of the release lock member 151.
1a, the release member 2T and the shutter button 26 are prevented from moving downward, making it impossible to release the shutter. The lock release member 153 is pivotally attached to a shaft 154 and is biased clockwise by a spring (not shown).
b is in sliding contact with the circumferential surface of the aperture value information transmission ring 150, and a spring 155 is stretched between it and the release lock member 151, and the member 151 is pulled counterclockwise around the pin 152. There is.
絞り値情報伝達リング150は、さらにその周面にカム
部150bを有し、絞りリング82が、例えば、Fl6
およびそれより小さい絞り開口が得られる位置に回動さ
れることによつて、その動きにピン150aを介して同
動し、ロツク解除部材153の先端153bに前記カム
部150bを摺接させて、該部材153を反時計方向に
押回動する。かくて、ピン152とピン153aとにガ
イドされて、レリーズ部材27をロツクしていたレリー
ズロツク部材151は、その上縁に摺接していた前記ピ
ン153aが上方に避退するために、ばね155に牽引
されて、ピン152を中心に反時計方向に回動し、尾部
151aがピン27bの下方から退避してレリーズ部材
27のロツクを解除する。The aperture value information transmission ring 150 further has a cam portion 150b on its circumferential surface, and the aperture ring 82, for example,
and by being rotated to a position where a smaller aperture opening is obtained, the cam portion 150b is moved along with the movement via the pin 150a, and the cam portion 150b is brought into sliding contact with the tip 153b of the lock release member 153, Push and rotate the member 153 counterclockwise. In this way, the release lock member 151, which had been guided by the pins 152 and 153a and had been locking the release member 27, has a spring 155 because the pin 153a, which was in sliding contact with the upper edge of the release lock member 151, is retracted upward. The tail portion 151a retreats from below the pin 27b to release the lock of the release member 27.
すなわち、絞りEE、あるいはプログラムEEに設定し
ても、絞りリング82が、例えばFl6より大きい絞り
開口径が得られる位置にあると、シヤツターレリーズ不
能に、レリーズ部材2Tをロツクして、絞りリング82
が、所定位置に設定されていないことを警告する。That is, even if the aperture EE or program EE is set, if the aperture ring 82 is in a position where an aperture diameter larger than Fl6 is obtained, the shutter release member 2T will be locked and the aperture ring will not be able to be released. 82
is not set in place.
第10図に示すものは、本願第2発明の実施例であり、
この実施例においても、交換レンズ81(第8図)側の
絞りリング82上の絞り目盛(図示せず)と、絞り値情
報伝達リング140の回動位置とが、絞り目盛値によつ
て、相対的に決められた位置にあるようになされたカメ
ラにおけるものであつて、ある一定の絞り開口径より小
さい口径、たとえば絞り目盛値が、Fl6およびそれよ
り小さい口径になるように設定されることによつて、絞
りEE、またはプログラムEEへの切換え操作を可能と
なすようにしたものを示している。What is shown in FIG. 10 is an embodiment of the second invention of the present application,
In this embodiment as well, the aperture scale (not shown) on the aperture ring 82 on the side of the interchangeable lens 81 (FIG. 8) and the rotational position of the aperture value information transmission ring 140 depend on the aperture scale value. In a camera that is positioned at a relatively determined position, the aperture diameter is smaller than a certain aperture diameter, for example, the aperture scale value is set to be Fl6 and an aperture smaller than that. The figure shows an arrangement in which switching operation to aperture EE or program EE is possible.
すなわち、例えば絞り最小口径がF22の交換レンズで
、絞りをFl6およびそれより小さい口径となるように
設定されたとき、絞りリング82により、ピン140a
を介して押回動される絞り値情報伝達リング140の凹
部140bに、軸141に枢着され、ばね142で時計
方向に付勢され、マニユアル、またはシヤツター速度E
Eに設定されていて、絞りが例えばFl6より大きい開
口径に設定される状態で、前記リング140に突部14
3aを摺接している係止部材143が時計方向に回動し
て、その突部143aを、前記リング140の凹部14
0bに係入し、そして該部材143は、それに形成し、
それまで切換え部材39の左行の進路に臨ませていた鈎
部143bを、該進路から避退させるようにしたもので
ある。すなわち、絞り開口径が、Fl6およびそれより
小さくなる絞り値まで、絞りリング82を回動させない
限り、切換え部材39を、マニユアル、またはシヤツタ
ー速度EE位置から、絞りEE、またはプログラムEE
位置へ移動させることができない。一方、絞りEE、ま
たはプログラムEE位置に切換え部材39が設定されて
いると、絞りリング82を、絞り開口径がFl6より大
きくなる絞り設定位置、例えばF5.6位置に向つて回
動することができなι)。That is, for example, in an interchangeable lens with a minimum aperture of F22, when the aperture is set to F16 or a smaller aperture, the aperture ring 82 causes the pin 140a to
The aperture value information transmission ring 140 is pivoted to the recess 140b of the aperture value information transmission ring 140, which is pushed and rotated via the shaft 141, and is biased clockwise by a spring 142.
E, and the aperture is set to a larger aperture diameter than, for example, Fl6, the ring 140 is provided with a protrusion 14.
The locking member 143 that is in sliding contact with the ring 140 rotates clockwise, and the protrusion 143a is inserted into the recess 14 of the ring 140.
0b, and the member 143 is formed therein;
The hook portion 143b, which had been facing the leftward course of the switching member 39, is retracted from the leftward course. That is, unless the aperture ring 82 is rotated until the aperture aperture diameter is Fl6 or smaller, the switching member 39 can be changed from the manual or shutter speed EE position to the aperture EE or program EE position.
Unable to move to position. On the other hand, when the switching member 39 is set at the aperture EE or program EE position, the aperture ring 82 cannot be rotated toward the aperture setting position where the aperture opening diameter is larger than Fl6, for example, the F5.6 position. I can't do it.
すなわち、絞り値情報伝達リング140の凹部140b
に、突部143aを係入した係止部材143の鈎部14
3bの先端は、切換え部材39の上縁部39kに臨んで
いる。従つて、絞りリング82を操作し、絞り値情報伝
達リング140を回動させようとしても、係止部材14
3の鈎部143bの先端が、切換え部材39の上縁部3
9kに当つて、それ以上反時計方向に回動することがで
きず、突部143aが、凹部140bから脱出できない
ために、前記リング140は回動できない。但し、絞り
値をF22の如く、絞り口径が小さくなる位置に向つて
の回路は可能である。従つて、絞りEE、またはプログ
ラムEEから、マニユアル、またはシヤツタ一速度EE
への切換え操作を行うことにより、切換え部材39をそ
のばね40により右行させて後に、絞りリング82を、
絞り開口径を増大する方向に操作すると、絞り値情報伝
達リング140が、図示しないばねによつて追動し、反
時計方向に回動して、その凹部140bから、係止部材
143の突部143aを押し出して、前記リング140
の外周に、前記突部143aを摺接させ、これにより、
係止部材143の鈎部143bが、切換え部材39の左
行を阻止する。以上の如く、この発明のレンズ交換が可
能なカメラでは、カメラ本体に、露出制御モードを択一
的に設定する設定部材を備え、該設定部材の所望露出制
御モード設定切換え操作に応じて露出制御回路を切換え
、シヤツタ一速度EEと、絞りEEまたはプログラムE
Eとを選択できるようにしたから、交換レンズとカメラ
本体との継ぎ部分には、露出制御回路の切換えのための
特別な構成が一切不要となり、同部の構造が複雑化しな
い。That is, the recess 140b of the aperture value information transmission ring 140
, the hook portion 14 of the locking member 143 into which the protrusion 143a is engaged
The tip of 3b faces the upper edge 39k of the switching member 39. Therefore, even if an attempt is made to rotate the aperture value information transmission ring 140 by operating the aperture ring 82, the locking member 14
The tip of the hook portion 143b of No. 3 is located at the upper edge 3 of the switching member 39.
At point 9k, the ring 140 cannot be rotated any further in the counterclockwise direction, and the protrusion 143a cannot escape from the recess 140b. However, it is possible to create a circuit where the aperture value is set toward a position where the aperture diameter becomes smaller, such as F22. Therefore, from aperture EE or program EE, manual or shutter speed EE
By performing the switching operation, the switching member 39 is moved to the right by its spring 40, and then the aperture ring 82 is moved to the right.
When the aperture aperture diameter is increased, the aperture value information transmission ring 140 is moved by a spring (not shown), rotates counterclockwise, and moves from the recess 140b to the protrusion of the locking member 143. 143a and the ring 140
The protrusion 143a is brought into sliding contact with the outer periphery of the
The hook portion 143b of the locking member 143 prevents the switching member 39 from moving to the left. As described above, in the interchangeable lens camera of the present invention, the camera body is provided with a setting member for selectively setting an exposure control mode, and the exposure is controlled in accordance with the operation of switching the desired exposure control mode setting of the setting member. Switch the circuit to select shutter speed EE, aperture EE or program E.
Since E can be selected, there is no need for any special structure for switching the exposure control circuit at the joint between the interchangeable lens and the camera body, and the structure of this part does not become complicated.
さら,に、この発明において、交換レンズの絞りリング
を絞りEEまたはプログラムEEのための特定範囲に設
定しなければ、カメラのシヤツターレリーズあるいは前
記露出制御モード設定部材のモード設定切換え操作が行
えないように構成すれば、絞りEEまたはプログラムE
Eでの撮影を意図している撮影者に対し、絞りリングを
その特定範囲に設定すべき旨の警告を与えることができ
るため、この場合も、実際の絞りEEまたはプログラム
EEでの撮影は常に望ましい状態で行われることになる
。Furthermore, in this invention, unless the aperture ring of the interchangeable lens is set to a specific range for aperture EE or program EE, the shutter release of the camera or the mode setting switching operation of the exposure control mode setting member cannot be performed. If configured like this, aperture EE or program E
A warning can be given to a photographer intending to shoot at E that the aperture ring should be set in that particular range, so that, again, shooting at actual aperture EE or program EE will always be This will be done in the desired condition.
第1図は、この発明に係るカメラのシヤツタ一機構の主
要部を示す斜面図、第2図は、要部の構成を示す正面図
、第3図は、絞り機構の主要部を示す斜面図、第4図、
第5図、第6図、および第7図は、マニユアル、シヤツ
タ一速度EE、絞りEElおよびプログラムEEにおけ
る制御回路の結線図、第8図は、この発明を実施したカ
メラの外観斜面図、第9図は第1発明の実施例の主要部
を示す正面図、第10図は第2発明の実施例の主要部を
示す正面図である。
36,38,39,40・・・・・・露出制御モードを
択一的に設定する設定機構、41,44,60,S2ゞ
S4?S7ゝSlO)Sl2?Sl3″I″。
01スイツチ装置、140,150・・・・・・絞り情
報伝達部材、151・・・・・ルリーズ阻止部材、14
3・・・・・・設定阻止部材、151a・・・・・・阻
止部、151c・・・・・・連動部、153・・・・・
・連絡部。FIG. 1 is a perspective view showing the main parts of the shutter mechanism of a camera according to the present invention, FIG. 2 is a front view showing the configuration of the main parts, and FIG. 3 is a perspective view showing the main parts of the aperture mechanism. , Figure 4,
5, 6, and 7 are wiring diagrams of control circuits for manual, shutter speed EE, aperture EEl, and program EE, and FIG. 8 is an external perspective view of a camera embodying the present invention. FIG. 9 is a front view showing the main parts of the embodiment of the first invention, and FIG. 10 is a front view showing the main parts of the embodiment of the second invention. 36, 38, 39, 40...Setting mechanism for selectively setting the exposure control mode, 41, 44, 60, S2ゞS4? S7ゝSlO)Sl2? Sl3″I″. 01 Switch device, 140, 150...Aperture information transmission member, 151...Lurise blocking member, 14
3...setting blocking member, 151a...blocking part, 151c...interlocking part, 153...
- Liaison department.
Claims (1)
御またはプログラム自動制御での露出制御が可能な露出
制御回路を有するレンズ交換が可能なカメラにおいて、
露出制御モードを択一的に設定する設定機構と、該設定
機構の作動に連動して露出制御回路を設定モードに対応
した接続状態に切換えるスイッチ装置と、交換レンズ側
の絞りリングと連係可能な絞り情報伝達部材と、シヤツ
ターレリーズ部材のレリーズ作動経路内に進退自在に臨
出する阻止部と、前記設定機構に連動可能な連動部と、
交換レンズ側の絞りリングが絞り自動制御またはプログ
ラム自動制御のため特定絞り値よりも小絞り開口値に設
定されたとき前記絞り情報伝達部材を介して駆動される
連絡部とを有し、前記設定機構が絞り自動制御およびプ
ログラム自動制御以外の設定状態にあるとき阻止部がシ
ャッターレリーズ部材のレリーズ作動経路外に退避した
阻止準備位置にあり、前記設定機構の絞り自動制御また
はプログラム自動制御設定状態への切換えに連動して連
動部を介して阻止準備位置からレリーズ作動経路内へ阻
止部が進入した阻止位置へ移動し、絞りリングを前記特
定絞り値よりも小絞り開口値に設定することにより前記
絞り情報伝達部材および連絡部を介して阻止部がレリー
ズ作動経路外であつてかつ連動部が前記設定機構と連動
しない位置にある不作動位置へ移動するレリーズ阻止部
材とをカメラ本体側に備えたことを特徴とするレンズ交
換が可能なカメラ。 2 少なくともシャッター速度自動制御と、絞り自動制
御またはプログラム自動制御での露出制御が可能な露出
制御回路を有するレンズ交換が可能なカメラにおいて、
露出制御モードを択一的に設定する設定機構と、該設定
機構の作動に連動して露出制御回路を設定モードに対応
した接続状態に切換えるスイッチ装置と、前記設定機構
の絞り自動制御またはプログラム自動制御設定状態への
作動経路内に臨出する設定阻止位置および作動経路外の
阻止解除位置との間を移動可能で、かつ交換レンズ側の
絞りリングに連動して絞りリングが絞り自動制御または
プログラム自動制御のため特定絞り値よりも小絞り開口
値に設定されるときのみ阻止解除位置に移動する設定阻
止部材とをカメラ本体側に備えたことを特徴とするレン
ズ交換が可能なカメラ。[Scope of Claims] 1. A lens-interchangeable camera having at least an exposure control circuit capable of automatic shutter speed control and exposure control using automatic aperture control or automatic program control,
A setting mechanism that selectively sets the exposure control mode, a switch device that switches the exposure control circuit to a connection state corresponding to the setting mode in conjunction with the operation of the setting mechanism, and a switch device that can be linked with the aperture ring on the interchangeable lens side. an aperture information transmitting member, a blocking portion that protrudes forward and backward into the release operation path of the shutter release member, and an interlocking portion that can be interlocked with the setting mechanism;
and a communication section that is driven via the aperture information transmission member when the aperture ring on the interchangeable lens side is set to a smaller aperture aperture value than a specific aperture value for automatic aperture control or program automatic control, When the mechanism is in a setting state other than automatic aperture control or automatic program control, the blocking part is in the blocking preparation position retracted outside the release operating path of the shutter release member, and the setting mechanism enters the automatic aperture control or automatic program control setting state. The aperture ring is moved from the blocking preparation position to the blocking position where the blocking part enters the release operation path via the interlocking part in conjunction with the switching, and the aperture ring is set to an aperture opening value smaller than the specific aperture value. The camera body side is provided with a release blocking member that moves via the aperture information transmitting member and the communication portion to an inoperative position in which the blocking portion is outside the release operation path and the interlocking portion is not interlocked with the setting mechanism. A camera with interchangeable lenses. 2. A camera with interchangeable lenses that has at least an exposure control circuit capable of automatic shutter speed control and exposure control using automatic aperture control or automatic program control,
a setting mechanism that selectively sets an exposure control mode; a switch device that switches an exposure control circuit to a connection state corresponding to the setting mode in conjunction with the operation of the setting mechanism; and automatic aperture control or program automatic control of the setting mechanism. The aperture ring can be moved between a setting blocking position that appears within the operating path to the control setting state and a blocking release position that is outside the operating path, and the aperture ring can perform automatic aperture control or programming in conjunction with the aperture ring on the interchangeable lens side. A camera with interchangeable lenses, characterized in that the camera body is provided with a setting blocking member that moves to a blocking release position only when the aperture aperture value is set to a smaller aperture value than a specific aperture value for automatic control.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP48081948A JPS5949568B2 (en) | 1973-07-17 | 1973-07-17 | Camera with interchangeable lenses |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP48081948A JPS5949568B2 (en) | 1973-07-17 | 1973-07-17 | Camera with interchangeable lenses |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5030519A JPS5030519A (en) | 1975-03-26 |
JPS5949568B2 true JPS5949568B2 (en) | 1984-12-04 |
Family
ID=13760709
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP48081948A Expired JPS5949568B2 (en) | 1973-07-17 | 1973-07-17 | Camera with interchangeable lenses |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5949568B2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62112963U (en) * | 1986-01-09 | 1987-07-18 |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6132847Y2 (en) * | 1978-02-28 | 1986-09-25 | ||
JPS5590935A (en) * | 1978-12-29 | 1980-07-10 | Minolta Camera Co Ltd | Camera using interchangeable lens |
JPS55146430A (en) * | 1979-04-06 | 1980-11-14 | Olympus Optical Co Ltd | Single lens reflex camera |
JPS59112237U (en) * | 1983-01-17 | 1984-07-28 | 旭光学工業株式会社 | Camera release malfunction prevention device |
-
1973
- 1973-07-17 JP JP48081948A patent/JPS5949568B2/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62112963U (en) * | 1986-01-09 | 1987-07-18 |
Also Published As
Publication number | Publication date |
---|---|
JPS5030519A (en) | 1975-03-26 |
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