JPH0345532U - - Google Patents
Info
- Publication number
- JPH0345532U JPH0345532U JP10759289U JP10759289U JPH0345532U JP H0345532 U JPH0345532 U JP H0345532U JP 10759289 U JP10759289 U JP 10759289U JP 10759289 U JP10759289 U JP 10759289U JP H0345532 U JPH0345532 U JP H0345532U
- Authority
- JP
- Japan
- Prior art keywords
- blade
- coil
- lens barrel
- magnet
- presser plate
- 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
- 230000005405 multipole Effects 0.000 claims 2
Landscapes
- Diaphragms For Cameras (AREA)
- Shutters For Cameras (AREA)
Description
第１図は本考案による羽根開閉装置をカメラの
シヤツターに利用した場合の断面図。第２図は第
１図の横断面図。
１……上地板、２……下地板、３……レンズ鏡
胴、４……多極マグネツト、５，６，９，１０…
…ヨーク、７，１１……コイル、８，１２……磁
極、１４……羽根押え板、１５……羽根室、１６
……枢支ピン、１７……シヤツター羽根、１８…
…羽根駆動ピン。
FIG. 1 is a sectional view of the blade opening/closing device according to the present invention used in a camera shutter. FIG. 2 is a cross-sectional view of FIG. 1. 1... Upper plate, 2... Base plate, 3... Lens barrel, 4... Multipolar magnet, 5, 6, 9, 10...
... Yoke, 7, 11 ... Coil, 8, 12 ... Magnetic pole, 14 ... Vane holding plate, 15 ... Vane chamber, 16
...Pivot pin, 17...Shutter blade, 18...
...Blade drive pin.
Claims (1)
円筒形多極マグネツトをアウトサートされたレン
ズ鏡胴及びコイルを内蔵し、前記多極マグネツト
と協働する磁極を形成されて前記多極マグネツト
の外周に配置されるヨークより成り、前記多極マ
グネツト、コイル及びヨークによつて構成された
ステツピングモーターと、一方の地板との間に羽
根室を形成するようにしてこの地板に取付けられ
た羽根押え板と、前記羽根押え板及び前記一方の
地板の何れかに設けられた枢支ピンに枢動可能に
支持されて前記羽根室内に配置され、前記鏡胴の
口径を閉鎖する位置及び開放する位置の間を枢動
可能の羽根と、前記鏡胴に突設されて前記羽根に
形成された溝孔に滑動係合する駆動ピンとより成
り、駆動回路によつて前記コイルに所望の方向の
電流を通電することによつて前記羽根を所望の開
閉位置に枢動可能になしたことを特徴とする羽根
開閉装置。 It is rotatably supported between a pair of base plates, has a built-in lens barrel and a coil with a cylindrical multi-pole magnet outsert on its circumference, and is formed with magnetic poles that cooperate with the multi-pole magnet. The stepping motor is composed of a yoke arranged around the outer circumference of a magnet, and is attached to one of the main plates so as to form a blade chamber between the stepping motor, which is composed of the multipolar magnet, the coil, and the yoke, and one of the main plates. a blade presser plate, and a position where the blade presser plate is pivotably supported by a pivot pin provided on either the blade presser plate or the one base plate and is disposed within the blade chamber, and closes the aperture of the lens barrel; comprising a vane pivotable between open positions and a drive pin projecting from the lens barrel and slidingly engaged in a slot formed in the vane, the coil being directed in a desired direction by a drive circuit. A blade opening/closing device characterized in that the blade can be pivoted to a desired opening/closing position by applying a current to the blade.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10759289U JPH0345532U (en) | 1989-09-13 | 1989-09-13 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10759289U JPH0345532U (en) | 1989-09-13 | 1989-09-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0345532U true JPH0345532U (en) | 1991-04-26 |
Family
ID=31656279
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10759289U Pending JPH0345532U (en) | 1989-09-13 | 1989-09-13 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0345532U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0570228U (en) * | 1992-03-04 | 1993-09-24 | 八鹿鉄工株式会社 | Harvester |
-
1989
- 1989-09-13 JP JP10759289U patent/JPH0345532U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0570228U (en) * | 1992-03-04 | 1993-09-24 | 八鹿鉄工株式会社 | Harvester |
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