JP2012058585A5 - - Google Patents
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- JP2012058585A5 JP2012058585A5 JP2010203149A JP2010203149A JP2012058585A5 JP 2012058585 A5 JP2012058585 A5 JP 2012058585A5 JP 2010203149 A JP2010203149 A JP 2010203149A JP 2010203149 A JP2010203149 A JP 2010203149A JP 2012058585 A5 JP2012058585 A5 JP 2012058585A5
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- magnetic pole
- rotor
- coil
- opening
- pole portion
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Description
そこで、本発明は、径方向及び軸方向の寸法を小さくして小型化を図ることができると共に、モータ出力を高くすることができる光量調整装置を提供することを目的とする。 Accordingly, the present invention, it is possible to reduce the size by reducing the size of the radial and axial directions, and an object thereof is to provide an optical amount adjusting device that can be made high motor output.
上記目的を達成するために、本発明の光量調整装置は、開口部の開口量を調整する複数の絞り羽根と、前記絞り羽根を駆動する駆動部材と、前記駆動部材により駆動される前記絞り羽根の前記開口部への進入量を規制するカム部材と、前記駆動部材と前記絞り羽根とを間に挟んで前記カム部材に固定される押え部材と、前記駆動部材にギヤ連結され、前記駆動部材に駆動力を伝達するモータ機構部と、を備え、前記モータ機構部は、ロータ、ステータ、第１のコイル、及び第２のコイルを有し、前記ロータは、円周方向に多分割されて異なる磁極が交互に形成され、前記ステータは、軟磁性材料からなり且つ前記押え部材に一体に形成されると共に、支持部、第１の磁極部、及び第２の磁極部を有し、前記支持部は、前記ロータの回転軸を回転可能に支持し、前記第１の磁極部は、前記ロータの回転軸線の方向に前記支持部の位置と異なった位置に形成されると共に、前記ロータの外周部に向かって延出し、前記第２の磁極部は、前記ロータの回転軸線の方向に前記支持部の位置と異なった位置に形成されると共に、前記ロータの外周部に向かって延出し、前記第１のコイルは、筒状に巻回された内周部が、前記第１の磁極部の延出端から前記第１の磁極部に挿入され、前記第２のコイルは、筒状に巻回された内周部が、前記第２の磁極部の延出端から前記第２の磁極部に挿入されることを特徴とする。 In order to achieve the above object, a light amount adjusting device of the present invention includes a plurality of aperture blades that adjust the aperture amount of an opening, a drive member that drives the aperture blades, and the aperture blades that are driven by the drive members. A cam member that regulates the amount of the light entering the opening, a pressing member that is fixed to the cam member with the drive member and the aperture blade interposed therebetween, and a gear connected to the drive member, the drive member and a motor mechanism for transmitting a driving force to the motor mechanism unit, b over data has stator, a first coil, and the second coil, the rotor, multi circumferentially divided by different magnetic poles are formed alternately, the stator is closed with made form integrally with and the pressing member of a soft magnetic material, the support unit, the first magnetic pole portion, and the second magnetic pole portion and, the support portion may turn the axis of rotation of said rotor Capable supporting the first magnetic pole portion is positioned and is formed in a different position of the support portion in the direction of the axis of rotation of the rotor, extending toward the outer periphery of the rotor, said first The magnetic pole part of 2 is formed at a position different from the position of the support part in the direction of the rotation axis of the rotor and extends toward the outer peripheral part of the rotor, and the first coil is cylindrical The inner peripheral part wound around the first magnetic pole part is inserted into the first magnetic pole part from the extended end of the first magnetic pole part, and the second coil has an inner peripheral part wound in a cylindrical shape, The second magnetic pole part is inserted into the second magnetic pole part from an extended end of the second magnetic pole part .
本発明によれば、径方向及び軸方向の寸法を小さくして小型化を図ることができると共に、モータ出力を高くすることができる。 According to the present invention, it is possible to reduce the size by reducing the size of the radial and axial directions, Ru can increase the motor output.
Claims (4)
前記絞り羽根を駆動する駆動部材と、
前記駆動部材により駆動される前記絞り羽根の前記開口部への進入量を規制するカム部材と、
前記駆動部材と前記絞り羽根とを間に挟んで前記カム部材に固定される押え部材と、
前記駆動部材にギヤ連結され、前記駆動部材に駆動力を伝達するモータ機構部と、を備え、
前記モータ機構部は、ロータ、ステータ、第１のコイル、及び第２のコイルを有し、
前記ロータは、円周方向に多分割されて異なる磁極が交互に形成され、
前記ステータは、軟磁性材料からなり且つ前記押え部材に一体に形成されると共に、支持部、第１の磁極部、及び第２の磁極部を有し、
前記支持部は、前記ロータの回転軸を回転可能に支持し、
前記第１の磁極部は、前記ロータの回転軸線の方向に前記支持部の位置と異なった位置に形成されると共に、前記ロータの外周部に向かって延出し、
前記第２の磁極部は、前記ロータの回転軸線の方向に前記支持部の位置と異なった位置に形成されると共に、前記ロータの外周部に向かって延出し、
前記第１のコイルは、筒状に巻回された内周部が、前記第１の磁極部の延出端から前記第１の磁極部に挿入され、
前記第２のコイルは、筒状に巻回された内周部が、前記第２の磁極部の延出端から前記第２の磁極部に挿入されることを特徴とする光量調整装置。 A plurality of aperture blades for adjusting the opening amount of the opening;
A drive member for driving the diaphragm blades;
A cam member for restricting the amount of the diaphragm blades driven by the drive member from entering the opening;
A pressing member fixed to the cam member with the driving member and the aperture blade interposed therebetween,
A motor mechanism that is gear-coupled to the driving member and transmits a driving force to the driving member;
The motor mechanism unit includes Russia over data, the stator, a first coil, and a second coil,
The rotor is multi-divided in the circumferential direction and alternately formed with different magnetic poles,
The stator has with made form integrally with and the pressing member of a soft magnetic material, the support unit, the first magnetic pole portion, and the second magnetic pole portion,
The support portion rotatably supports the rotation shaft of the rotor,
The first magnetic pole portion is formed at a position different from the position of the support portion in the direction of the rotation axis of the rotor, and extends toward the outer peripheral portion of the rotor,
The second magnetic pole portion is formed at a position different from the position of the support portion in the direction of the rotation axis of the rotor, and extends toward the outer peripheral portion of the rotor,
In the first coil, an inner peripheral part wound in a cylindrical shape is inserted into the first magnetic pole part from the extending end of the first magnetic pole part,
The second coil has an inner peripheral portion wound in a cylindrical shape and inserted into the second magnetic pole portion from an extended end of the second magnetic pole portion .
前記絞り羽根を駆動する駆動部材と、
前記駆動部材により駆動される前記絞り羽根の前記開口部への進入量を規制するカム部材と、
前記駆動部材と前記絞り羽根とを間に挟んで前記カム部材に固定される押え部材と、
前記駆動部材にギヤ連結され、前記駆動部材に駆動力を伝達するモータ機構部と、を備え、
前記モータ機構部は、ロータ、ステータ、第１のコイル、及び第２のコイルを有し、
前記ロータは、円周方向に多分割されて異なる磁極が交互に形成され、
前記ステータは、軟磁性材料からなり且つ前記カム部材に一体に形成されると共に、支持部、第１の磁極部、及び第２の磁極部を有し、
前記支持部は、前記ロータの回転軸を回転可能に支持し、
前記第１の磁極部は、前記ロータの回転軸線の方向に前記支持部の位置と異なった位置に形成されると共に、前記ロータの外周部に向かって延出し、
前記第２の磁極部は、前記ロータの回転軸線の方向に前記支持部の位置と異なった位置に形成されると共に、前記ロータの外周部に向かって延出し、
前記第１のコイルは、筒状に巻回された内周部が、前記第１の磁極部の延出端から前記第１の磁極部に挿入され、
前記第２のコイルは、筒状に巻回された内周部が、前記第２の磁極部の延出端から前記第２の磁極部に挿入されることを特徴とする光量調整装置。 A plurality of aperture blades for adjusting the opening amount of the opening;
A drive member for driving the diaphragm blades;
A cam member for restricting the amount of the diaphragm blades driven by the drive member from entering the opening;
A pressing member fixed to the cam member with the driving member and the aperture blade interposed therebetween,
A motor mechanism that is gear-coupled to the driving member and transmits a driving force to the driving member;
The motor mechanism unit includes Russia over data, the stator, a first coil, and a second coil,
The rotor is multi-divided in the circumferential direction and alternately formed with different magnetic poles,
The stator has with made form integrally with and the cam member of a soft magnetic material, the support unit, the first magnetic pole portion, and the second magnetic pole portion,
The support portion rotatably supports the rotation shaft of the rotor,
The first magnetic pole portion is formed at a position different from the position of the support portion in the direction of the rotation axis of the rotor, and extends toward the outer peripheral portion of the rotor,
The second magnetic pole portion is formed at a position different from the position of the support portion in the direction of the rotation axis of the rotor, and extends toward the outer peripheral portion of the rotor,
In the first coil, an inner peripheral part wound in a cylindrical shape is inserted into the first magnetic pole part from the extending end of the first magnetic pole part,
The second coil has an inner peripheral portion wound in a cylindrical shape and inserted into the second magnetic pole portion from an extended end of the second magnetic pole portion .
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010203149A JP5631673B2 (en) | 2010-09-10 | 2010-09-10 | Light intensity adjustment device |
| US13/226,550 US8503104B2 (en) | 2010-09-10 | 2011-09-07 | Motor having small size and high output, and light amount adjustment device equipped with the motor |
| CN201110272006.0A CN102402102B (en) | 2010-09-10 | 2011-09-09 | Motor having small size and high output, and light amount adjustment device equipped with the motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2010203149A JP5631673B2 (en) | 2010-09-10 | 2010-09-10 | Light intensity adjustment device |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2012058585A JP2012058585A (en) | 2012-03-22 |
| JP2012058585A5 true JP2012058585A5 (en) | 2013-10-24 |
| JP5631673B2 JP5631673B2 (en) | 2014-11-26 |
Family
ID=46055728
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2010203149A Expired - Fee Related JP5631673B2 (en) | 2010-09-10 | 2010-09-10 | Light intensity adjustment device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP5631673B2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6580819B2 (en) * | 2014-10-01 | 2019-09-25 | キヤノン電子株式会社 | Blade driving device and imaging device |
| WO2021192723A1 (en) * | 2020-03-26 | 2021-09-30 | ソニーグループ株式会社 | Blade opening/closing device, interchangeable lens, and imaging device |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4922274A (en) * | 1986-11-21 | 1990-05-01 | Canon Kabushiki Kaisha/Canon Denshi Kabushiki Kaisha | Motor driven exposure adjusting device |
| JP2675826B2 (en) * | 1988-08-23 | 1997-11-12 | キヤノン株式会社 | Electric exposure adjustment device |
| US6559569B2 (en) * | 2000-04-18 | 2003-05-06 | Canon Kabushiki Kaisha | Motor device |
| JP2002078312A (en) * | 2000-08-28 | 2002-03-15 | Tdk Corp | Stepping motor |
| JP2002354777A (en) * | 2001-03-23 | 2002-12-06 | Tdk Corp | Stepping motor |
| JP2002369489A (en) * | 2001-06-06 | 2002-12-20 | Canon Inc | Electromagnetically driven motor and electromagnetically driven stop device having the motor |
| JP3815280B2 (en) * | 2001-09-26 | 2006-08-30 | 株式会社デンソー | Instrument |
| JP4298311B2 (en) * | 2003-02-07 | 2009-07-15 | キヤノン株式会社 | motor |
| JP2005080493A (en) * | 2003-09-04 | 2005-03-24 | Canon Inc | Drive unit, light quantity adjusting apparatus and photographic apparatus |
| JP4012170B2 (en) * | 2004-01-06 | 2007-11-21 | キヤノン株式会社 | Actuator and light quantity adjusting device |
| JP2007189824A (en) * | 2006-01-12 | 2007-07-26 | Nisca Corp | Magnet rotor, electromagnetic drive device therewith, and optical instrument having optical amount adjusting device |
| JP5328187B2 (en) * | 2008-03-24 | 2013-10-30 | キヤノン株式会社 | Blade driving device and imaging device |
-
2010
- 2010-09-10 JP JP2010203149A patent/JP5631673B2/en not_active Expired - Fee Related
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