JPS58131033U - Aperture mechanism for camera - Google Patents
Aperture mechanism for cameraInfo
- Publication number
- JPS58131033U JPS58131033U JP2706082U JP2706082U JPS58131033U JP S58131033 U JPS58131033 U JP S58131033U JP 2706082 U JP2706082 U JP 2706082U JP 2706082 U JP2706082 U JP 2706082U JP S58131033 U JPS58131033 U JP S58131033U
- Authority
- JP
- Japan
- Prior art keywords
- aperture
- locking
- release
- lever
- locked
- 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
Links
Landscapes
- Diaphragms For Cameras (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は本考案を一眼レフカメラに実施した場合の概略
的配置を示す説明図、第２図は第１図の実施例中の絞り
込み機構Ｍ工の未作動状態における正面図、第３図は第
１図の実施例中の絞り調節機構Ｍ２の未作動状態におけ
る正面図、第４図は上記絞り調節機構Ｍ２の係止状態を
示す説明図、第５図は上記絞り込み機構Ｍ□の作動後の
状態の正面図である。
１・・・・・・カメラボディ、２・・・・・・撮影レン
ズ系、３・・・・・・ミラーボックスの右側壁、Ｍ工（
以下の４〜１４）・・・・・・絞り込み機構、Ｍ２（以
下の２１〜３６）・・・・・・絞り調節機構、４・・・
・・・セットレバ−（絞り駆動部材）、５・・・・・・
軸、６・・・・・・バネ、７・・・・・・セットピン（
絞り駆動部材）、８・・・・・・絞りレバー（絞り規制
部材）、９・・・・・・軸、１０・・・・・・バネ、１
１・・・・・・絞り開放レバー、１２・・・・・・バネ
、１３・・・・・・ストッパー、１４・・・・・・絞り
操作枠、２１・・・・・・扇形ギヤ（連結部材）、２２
・・・・・・軸、２３・・・・・・第一ギヤ、２４・・
・・・・連結ギヤ、２５・・・・・・ラチェットギヤ、
（被係止部材）、２６・・・・・・電磁石（保持手段）
、２７・・・・・・係止レバー（係止部材）、２７ａ・
・・・・・軸、２７Ｃｉ、２７Ｃ２・・・・・・立曲げ
部、２８・・・・・・爪レバー（係止部材）、２８ａ・
・・・・・軸、２８ｂ□・・・・・・爪、２８ｂ２・・
・・・・立回部、２８Ｃ・・・・・・バネ、２９・・・
・・・鉄片、３０・・・・・・バネ、３１・・・・・・
解除レバー（解除部材）、３２・・・・・・バネ。Fig. 1 is an explanatory diagram showing the schematic arrangement when the present invention is implemented in a single-lens reflex camera, Fig. 2 is a front view of the aperture mechanism M in the embodiment shown in Fig. 1 in an inoperative state, and Fig. 3 is a front view of the diaphragm adjustment mechanism M2 in the embodiment shown in FIG. 1 in an inoperative state, FIG. 4 is an explanatory view showing the diaphragm adjustment mechanism M2 in a locked state, and FIG. It is a front view of a later state. 1...Camera body, 2...Photographing lens system, 3...Right side wall of mirror box, M construction (
4 to 14 below)... Aperture adjustment mechanism, M2 (21 to 36 below)... Aperture adjustment mechanism, 4...
...Set lever (aperture drive member), 5...
Shaft, 6... Spring, 7... Set pin (
aperture drive member), 8...aperture lever (aperture regulating member), 9...shaft, 10...spring, 1
1... Aperture opening lever, 12... Spring, 13... Stopper, 14... Aperture operation frame, 21... Fan-shaped gear ( connecting member), 22
...Shaft, 23...First gear, 24...
...Connection gear, 25...Ratchet gear,
(Locked member), 26... Electromagnet (holding means)
, 27... Locking lever (locking member), 27a.
...shaft, 27Ci, 27C2 ... vertical bending part, 28 ... pawl lever (locking member), 28a.
...Shaft, 28b□...Claw, 28b2...
...Standing part, 28C...Spring, 29...
... Iron piece, 30 ... Spring, 31 ...
Release lever (release member), 32... Spring.
Claims (1)
定区間を往復運動する絞り駆動部材、該駆動部材に従っ
て、絞り操作枠と共に移動する絞り規制部材、該絞り規
制部材と連動するようになされた被係止部材、該被係止
部材の係止方向に付勢された係支部材、該係止部材を上
記付勢方向に逆って保持する保持手段、上記絞り駆動部
材により上記係止部材をその付勢力向に逆って変位し保
持させるようになされている解除部材を有し、前記絞り
駆動部材の往動時には、前記係止部材は前記保持手段に
よる保持解除により直ちに前記被係止部材を係止し得る
ようになされたカメラ用絞り機構において、 前記被係止部材がラチェットギヤとなされると共に、前
記係止部材は、前記解除部材と連結された係止レバー及
び該係止レバー上に枢支された爪レバーを含み、前記絞
り規制部材の復動時には、ラチェットギヤは当初より、
絞り規制部材が解除部材を介して前記係止レバーを変位
せしめる迄は前記爪レバーを押し回しつつ回転するよう
に構成−したことを特徴とする絞り機構。[Scope of Claim for Utility Model Registration] An aperture drive member that reciprocates over a certain distance in connection with the release operation of a camera release button, an aperture regulation member that moves along with the aperture operation frame according to the drive member, and an aperture regulation member that moves together with the aperture operation frame. A locked member configured to interlock with each other, a locking member biased in the locking direction of the locked member, a holding means for holding the locking member in a direction opposite to the biasing direction, and the aperture drive. A release member is configured to displace and hold the locking member in a direction opposite to the urging force thereof, and when the aperture drive member moves forward, the locking member is released from the holding by the holding means. In the camera diaphragm mechanism that can immediately lock the locked member, the locked member is a ratchet gear, and the locking member is a locking member connected to the release member. The ratchet gear includes a lever and a pawl lever pivotally supported on the locking lever, and when the aperture regulating member returns, the ratchet gear initially
A diaphragm mechanism characterized in that the diaphragm regulating member rotates while pushing the pawl lever until the diaphragm regulating member displaces the locking lever via a release member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2706082U JPS58131033U (en) | 1982-02-26 | 1982-02-26 | Aperture mechanism for camera |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2706082U JPS58131033U (en) | 1982-02-26 | 1982-02-26 | Aperture mechanism for camera |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58131033U true JPS58131033U (en) | 1983-09-05 |
| JPH0339775Y2 JPH0339775Y2 (en) | 1991-08-21 |
Family
ID=30038982
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2706082U Granted JPS58131033U (en) | 1982-02-26 | 1982-02-26 | Aperture mechanism for camera |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58131033U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS584131A (en) * | 1981-07-01 | 1983-01-11 | Mamiya Koki Kk | Mirror box for single-lens reflex camera |
-
1982
- 1982-02-26 JP JP2706082U patent/JPS58131033U/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS584131A (en) * | 1981-07-01 | 1983-01-11 | Mamiya Koki Kk | Mirror box for single-lens reflex camera |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0339775Y2 (en) | 1991-08-21 |
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