JPH0470634U - - Google Patents
Info
- Publication number
- JPH0470634U JPH0470634U JP11265790U JP11265790U JPH0470634U JP H0470634 U JPH0470634 U JP H0470634U JP 11265790 U JP11265790 U JP 11265790U JP 11265790 U JP11265790 U JP 11265790U JP H0470634 U JPH0470634 U JP H0470634U
- Authority
- JP
- Japan
- Prior art keywords
- shutter
- closing lever
- shutter opening
- opening
- lens
- 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.)
- Pending
Links
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Shutters For Cameras (AREA)
Description
第１図は、本考案の実施例によるレンズシヤツ
タ装置の分解斜視図、第２図は、本考案の実施例
によるレンズシヤツタ装置に使用されている電磁
装置の断面図、第３図は、シヤツタ駆動部材とシ
ヤツタ開閉レバーとの位置関係の説明図、第４図
及び第５図は、本考案の実施例によるレンズシヤ
ツタ装置の作用を示す説明図、第６図は、従来の
レンズシヤツタ装置の主要部を示した分解斜視図
である。
１……取り付け板、２……ヨーク、３……シヤ
ツタ開閉レバー支持装置、４……コイル、５……
電磁石、５Ａ……コイルボビン、６，１７，２０
Ａ……回転軸、７……シヤツタ開閉レバー、８…
…カムフオロワピン、９……伝達ピン、１０……
駆動リング（シヤツタ駆動部材）、１０ａ，１０
ｂ，１０ｃ……カム部、１１……シヤツタ羽根駆
動レバー、１２……セクタ駆動ピン、１４，１５
……ばね、２０……カムフオロワレバー（従動部
材）。
FIG. 1 is an exploded perspective view of a lens shutter device according to an embodiment of the present invention, FIG. 2 is a sectional view of an electromagnetic device used in the lens shutter device according to an embodiment of the present invention, and FIG. 3 is a shutter driving member. 4 and 5 are explanatory diagrams showing the operation of the lens shutter device according to an embodiment of the present invention, and FIG. 6 shows the main parts of a conventional lens shutter device. FIG. 1...Mounting plate, 2...Yoke, 3...Shutter opening/closing lever support device, 4...Coil, 5...
Electromagnet, 5A...Coil bobbin, 6, 17, 20
A... Rotating shaft, 7... Shutter opening/closing lever, 8...
...Cam follower pin, 9...Transmission pin, 10...
Drive ring (shutter drive member), 10a, 10
b, 10c...Cam portion, 11...Shutter blade drive lever, 12...Sector drive pin, 14, 15
... Spring, 20 ... Cam follower lever (driven member).
Claims (1)
達するシヤツタ駆動部材と、 前記シヤツタ駆動部材から伝達された駆動力を
シヤツタ羽根開放部材に伝達するシヤツタ開閉レ
バーと、 前記シヤツタ開閉レバーを回動自在に支持する
とともに、その回転軸をシヤツタ作動時の各段階
に応じて移動することにより該シヤツタ開閉レバ
ーの回動範囲を変化させるシヤツタ開閉レバー支
持装置と、 を含むレンズシヤツタ装置において、 前記シヤツタ駆動部材と前記シヤツタ開閉レバ
ーとの間に配置され、該シヤツタ開閉レバーの回
動位置に係わらず該シヤツタ開閉レバーの略同一
の位置に当接する従動部材を設け、 前記カムによつて生じる摩擦力が前記シヤツタ
開閉レバーに伝達されないようにしたことを特徴
とするレンズシヤツタ装置。 (2) 前記従動部材は、シヤツタ開き動作時にお
ける前記シヤツタ開閉レバーの回転軸と略同軸で
あつて、前記シヤツタ開閉レバー支持装置以外の
部分に回動自在に支持されたレバーであることを
特徴とする請求項(1)記載のレンズシヤツタ装置
。[Claims for Utility Model Registration] (1) A shutter drive member that transmits the drive force for operating the shutter via a cam, and a shutter opening/closing lever that transmits the drive force transmitted from the shutter drive member to the shutter blade release member. and a shutter opening/closing lever support device that rotatably supports the shutter opening/closing lever and changes the rotational range of the shutter opening/closing lever by moving its rotation axis in accordance with each stage of shutter operation. A lens shutter device comprising: a driven member disposed between the shutter driving member and the shutter opening/closing lever and abutting on substantially the same position of the shutter opening/closing lever regardless of the rotational position of the shutter opening/closing lever; A lens shutter device characterized in that the frictional force generated by the cam is not transmitted to the shutter opening/closing lever. (2) The driven member is a lever that is substantially coaxial with the rotation axis of the shutter opening/closing lever during the shutter opening operation and is rotatably supported by a portion other than the shutter opening/closing lever support device. The lens shutter device according to claim (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11265790U JPH0470634U (en) | 1990-10-26 | 1990-10-26 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11265790U JPH0470634U (en) | 1990-10-26 | 1990-10-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0470634U true JPH0470634U (en) | 1992-06-23 |
Family
ID=31860174
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11265790U Pending JPH0470634U (en) | 1990-10-26 | 1990-10-26 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0470634U (en) |
-
1990
- 1990-10-26 JP JP11265790U patent/JPH0470634U/ja active Pending
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