JPS63113127U - - Google Patents
Info
- Publication number
- JPS63113127U JPS63113127U JP18362687U JP18362687U JPS63113127U JP S63113127 U JPS63113127 U JP S63113127U JP 18362687 U JP18362687 U JP 18362687U JP 18362687 U JP18362687 U JP 18362687U JP S63113127 U JPS63113127 U JP S63113127U
- Authority
- JP
- Japan
- Prior art keywords
- sector
- rotor
- sectors
- opening
- step motor
- 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 claims 2
- 230000001105 regulatory effect Effects 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Shutters For Cameras (AREA)
Description
第１図は本考案に使用されるステツプモータの
平面図、第２図は第１図の断面図、第３図は本考
案によるステツプモータで駆動されるセクタ開閉
部の平面図、第４図は第３図の断面図、第５図は
駆動回路からの出力信号の波形図とセクタの開口
作動線図、第６図はステツプモータの動作図であ
る。
１……ロータ、５……ロータピニオン、６……
ステータ、７……コイル、９……駆動回路、１１
……地板、１３……セクタ、１４……セクタ駆動
レバー、１５……セクタ駆動車、１６……係合ピ
ン、１７……アイドラー車。
Fig. 1 is a plan view of the step motor used in the present invention, Fig. 2 is a sectional view of Fig. 1, Fig. 3 is a plan view of the sector opening/closing section driven by the step motor according to the present invention, and Fig. 4. 3 is a sectional view of FIG. 3, FIG. 5 is a waveform diagram of the output signal from the drive circuit and a sector opening operation diagram, and FIG. 6 is an operation diagram of the step motor. 1...Rotor, 5...Rotor pinion, 6...
Stator, 7... Coil, 9... Drive circuit, 11
...Main plate, 13...Sector, 14...Sector drive lever, 15...Sector drive vehicle, 16...Engagement pin, 17...Idler vehicle.
Claims (1)
に対向する複数の磁極部が形成された複数のステ
ータと上記ステータを励磁させるコイルとから成
り正逆回転可能に制御出来るステツプモータと、
レンズ開口を形成する複数のセクタと、上記セク
タを駆動するセクタ駆動部材と、上記ステツプモ
ータと上記セクタ駆動部材とを連結する歯車列等
から成る伝達手段とを有して上記セクタの開閉作
動を制御するシヤツターにおいて、上記セクタの
閉じ方向の作動位置を規制する度決部を上記セク
タ駆動部材または上記伝達手段の一部に設け、上
記セクタの作動前および作動後の少なくとも一方
で上記度決部によりセクタの閉じ方向が規制され
ている時、上記コイルに対して上記ロータの所定
の停止状態を保持する通電を行なうことを特徴と
するセクタ開閉装置。 A step motor that is comprised of a rotor magnetized in the radial direction, a plurality of stators in which a plurality of magnetic pole portions facing the outer periphery of the rotor are formed, and a coil that excites the stator, and that can be controlled to rotate in forward and reverse directions;
The lens comprises a plurality of sectors forming a lens opening, a sector driving member for driving the sectors, and a transmission means such as a gear train connecting the step motor and the sector driving member to open and close the sectors. In the shutter to be controlled, a determination part for regulating the operating position of the sector in the closing direction is provided in a part of the sector drive member or the transmission means, and the determination part is provided at least either before or after the operation of the sector. 1. A sector opening/closing device characterized in that when the closing direction of the sector is regulated by a sector opening/closing device, the coil is energized to maintain a predetermined stopped state of the rotor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18362687U JPS63113127U (en) | 1987-12-01 | 1987-12-01 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18362687U JPS63113127U (en) | 1987-12-01 | 1987-12-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63113127U true JPS63113127U (en) | 1988-07-21 |
Family
ID=31130536
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18362687U Pending JPS63113127U (en) | 1987-12-01 | 1987-12-01 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63113127U (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56119119A (en) * | 1980-02-25 | 1981-09-18 | Canon Inc | Bound prevention device for solenoid-driven shutter |
| JPS56130729A (en) * | 1980-03-22 | 1981-10-13 | Copal Co Ltd | Mirror-up photographing control circuit of single-lens reflex camera |
-
1987
- 1987-12-01 JP JP18362687U patent/JPS63113127U/ja active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56119119A (en) * | 1980-02-25 | 1981-09-18 | Canon Inc | Bound prevention device for solenoid-driven shutter |
| JPS56130729A (en) * | 1980-03-22 | 1981-10-13 | Copal Co Ltd | Mirror-up photographing control circuit of single-lens reflex camera |
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