JP2008009179A5 - - Google Patents
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- Publication number
- JP2008009179A5 JP2008009179A5 JP2006180235A JP2006180235A JP2008009179A5 JP 2008009179 A5 JP2008009179 A5 JP 2008009179A5 JP 2006180235 A JP2006180235 A JP 2006180235A JP 2006180235 A JP2006180235 A JP 2006180235A JP 2008009179 A5 JP2008009179 A5 JP 2008009179A5
- Authority
- JP
- Japan
- Prior art keywords
- cam
- cam portion
- cylindrical member
- axial direction
- cylinder
- 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.)
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Claims (7)
第２のカム部を有して前記第１の筒部材に同軸に配置されるとともに、該第１の筒部材に対して軸方向に相対移動可能に支持される第２の筒部材と、を備え、
該第２の筒部材の前記第１の筒部材に対する軸方向の接近離間移動により、前記第１のカム部と前記第２のカム部とが接続される状態と、前記第１のカム部と前記第２のカム部との接続が解除される状態とに遷移する、
ことを特徴とするカム筒。 A first tubular member having a first cam portion;
A second tubular member having a second cam portion and coaxially disposed on the first tubular member and supported so as to be relatively movable in the axial direction with respect to the first tubular member; Prepared,
A state in which the first cam portion and the second cam portion are connected by the axial movement of the second cylindrical member relative to the first cylindrical member; and the first cam portion, Transition to a state in which the connection with the second cam portion is released,
A cam cylinder characterized by that.
前記第２の筒部材が前記第１の筒部材に対して軸方向に接近移動したときに、前記第１のカム部の一方のカムと前記第２のカム部の一方のカムとが接続されるとともに、前記第１のカム部の他方のカムと前記第２のカム部の他方のカムとの接続が解除され、
前記第２の筒部材が前記第１の筒部材に対して軸方向に離間移動したときに、前記第１のカム部の他方のカムと前記第２のカム部の他方のカムとが接続されるとともに、前記第１のカム部の一方のカムと前記第２のカム部の一方のカムとの接続が解除される、
ことを特徴とする請求項１に記載のカム筒。 Each of the first cam portion and the second cam portion has two cams,
When the second cylindrical member moves closer to the first cylindrical member in the axial direction, one cam of the first cam portion and one cam of the second cam portion are connected. And the connection between the other cam of the first cam portion and the other cam of the second cam portion is released,
When the second cylindrical member moves away from the first cylindrical member in the axial direction, the other cam of the first cam portion and the other cam of the second cam portion are connected. And the connection between one cam of the first cam portion and one cam of the second cam portion is released.
The cam cylinder according to claim 1, wherein:
前記カム筒は、第１のカム部を有する第１の筒部材と、
第２のカム部を有して前記第１の筒部材に同軸に配置されるとともに、該第１の筒部材に対して軸方向に相対移動可能に支持される第２の筒部材と、を備え、
該第２の筒部材の前記第１の筒部材に対する軸方向の接近離間移動により、前記第１のカム部と前記第２のカム部とが接続される状態と、前記第１のカム部と前記第２のカム部との接続が解除される状態とに遷移する、
ことを特徴とするレンズ鏡筒。 A lens barrel having a cam barrel,
The cam cylinder includes a first cylinder member having a first cam portion;
A second tubular member having a second cam portion and coaxially disposed on the first tubular member and supported so as to be relatively movable in the axial direction with respect to the first tubular member; Prepared,
A state in which the first cam portion and the second cam portion are connected by the axial movement of the second cylindrical member relative to the first cylindrical member; and the first cam portion, Transition to a state in which the connection with the second cam portion is released,
A lens barrel characterized by that.
前記第２の筒部材が前記第１の筒部材に対して軸方向に接近移動したときに、前記第１のカム部の一方のカムと前記第２のカム部の一方のカムとが接続されるとともに、前記第１のカム部の他方のカムと前記第２のカム部の他方のカムとの接続が解除され、
前記第２の筒部材が前記第１の筒部材に対して軸方向に離間移動したときに、前記第１のカム部の他方のカムと前記第２のカム部の他方のカムとが接続されるとともに、前記第１のカム部の一方のカムと前記第２のカム部の一方のカムとの接続が解除される、
ことを特徴とする請求項３に記載のレンズ鏡筒。 Each of the first cam portion and the second cam portion has two cams,
When the second cylindrical member moves closer to the first cylindrical member in the axial direction, one cam of the first cam portion and one cam of the second cam portion are connected. And the connection between the other cam of the first cam portion and the other cam of the second cam portion is released,
When the second cylindrical member moves away from the first cylindrical member in the axial direction, the other cam of the first cam portion and the other cam of the second cam portion are connected. And the connection between one cam of the first cam portion and one cam of the second cam portion is released.
The lens barrel according to claim 3.
前記第１の筒部材の軸方向に該第１の筒部材と一体に移動するとともに、前記第１の筒部材を相対回転可能に支持し、且つ前記伸縮カムに係合する係合部を有する第３の筒部材と、を備え、
該第３の筒部材に対して前記第２の筒部材が相対回転することにより、前記係合部が前記伸縮カムに沿って案内されて、該第２の筒部材が前記第１の筒部材に対して軸方向に相対移動する、
ことを特徴とする請求項３又は４に記載のレンズ鏡筒。 A telescopic cam provided on the second cylindrical member;
The first cylindrical member has an engaging portion that moves integrally with the first cylindrical member in the axial direction, supports the first cylindrical member so as to be relatively rotatable, and engages the telescopic cam. A third cylindrical member,
When the second cylindrical member rotates relative to the third cylindrical member, the engaging portion is guided along the telescopic cam, and the second cylindrical member is the first cylindrical member. Relative movement in the axial direction,
The lens barrel according to claim 3 or 4, wherein
前記第３の筒部材は、前記第１の筒部材に掛止して前記付勢力を受け止める掛止部を有する、
ことを特徴とする請求項５に記載のレンズ鏡筒。 Urging means for urging the first cylinder member and the second cylinder member in a direction away from each other in the axial direction;
The third cylinder member has a latching part that latches on the first cylinder member and receives the biasing force.
The lens barrel according to claim 5.
ことを特徴とする請求項３〜６のいずれか一項に記載のレンズ鏡筒。 Wherein the first tubular member and the second tubular member, the inner diameter and outer diameter are the same, respectively,
The lens barrel according to any one of claims 3 to 6, wherein:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2006180235A JP4748679B2 (en) | 2006-06-29 | 2006-06-29 | Cam barrel and lens barrel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2006180235A JP4748679B2 (en) | 2006-06-29 | 2006-06-29 | Cam barrel and lens barrel |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2008009179A JP2008009179A (en) | 2008-01-17 |
| JP2008009179A5 true JP2008009179A5 (en) | 2011-02-24 |
| JP4748679B2 JP4748679B2 (en) | 2011-08-17 |
Family
ID=39067460
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2006180235A Expired - Fee Related JP4748679B2 (en) | 2006-06-29 | 2006-06-29 | Cam barrel and lens barrel |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP4748679B2 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5570156B2 (en) * | 2009-07-28 | 2014-08-13 | キヤノン株式会社 | Lens barrel and imaging device |
| JP5566164B2 (en) * | 2010-03-31 | 2014-08-06 | キヤノン株式会社 | Lens barrel and imaging device |
| JP5754949B2 (en) * | 2011-01-13 | 2015-07-29 | 日東光学株式会社 | Zoom lens barrel and digital camera |
| JP5717458B2 (en) * | 2011-02-04 | 2015-05-13 | キヤノン株式会社 | Lens barrel |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4455788B2 (en) * | 2001-09-25 | 2010-04-21 | 株式会社リコー | Zoom lens barrel |
| JP2004085932A (en) * | 2002-08-27 | 2004-03-18 | Pentax Corp | Feed-out cam mechanism for zoom lens barrel and feed-out cam mechanism |
| JP2005128116A (en) * | 2003-10-22 | 2005-05-19 | Seiko Precision Inc | Optical module |
-
2006
- 2006-06-29 JP JP2006180235A patent/JP4748679B2/en not_active Expired - Fee Related
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