JPH0428628U - - Google Patents
Info
- Publication number
- JPH0428628U JPH0428628U JP6979890U JP6979890U JPH0428628U JP H0428628 U JPH0428628 U JP H0428628U JP 6979890 U JP6979890 U JP 6979890U JP 6979890 U JP6979890 U JP 6979890U JP H0428628 U JPH0428628 U JP H0428628U
- Authority
- JP
- Japan
- Prior art keywords
- drive lever
- cam
- lever
- base plate
- focal plane
- 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.)
- Granted
Links
- 230000001105 regulatory effect Effects 0.000 claims 1
- 230000007246 mechanism Effects 0.000 description 7
- 238000005452 bending Methods 0.000 description 3
- 230000009955 peripheral mechanism Effects 0.000 description 1
Landscapes
- Shutters For Cameras (AREA)
Description
第１図は本考案の１実施例に係るフオーカルプ
レーンシヤツタの羽根周辺機構の平面図、第２図
は本考案の１実施例に係るシヤツタ駆動機構のシ
ヤツタチヤージ状態を示す平面図、第３図は第２
図に示す機構の先羽根の走行開始直前の状態を示
す平面図、第４図は第２図及び第３図に示す機構
の先羽根及び後羽根が前進限で係合された状態を
平面図、第５図は第２図乃至第４図に示す機構の
先羽根の前進限での係合が解除された状態を示す
平面図、第６図は第２図乃至第５図に示す機構の
後羽根の前進限での係合が解除された状態を示す
平面図、第７図は先羽根側の駆動機構の拡大図、
第８図は後羽根側の駆動機構の拡大図、第９図は
後羽根側のカム板の取付構造を示す断面図。
１……先羽根、１ａ，１ｂ，１ｃ，１ｄ……羽
根、２……後羽根、２ａ，２ｂ，２ｃ，２ｄ……
羽根、３，４，５，６……連結レバー、７……地
板、７ａ……アパーチユア、７ｂ，７ｃ……スロ
ツト、１０……曲げ部、１５……先羽根駆動レバ
ー、１５ｂ……孔部、１５ｃ……エツジ、１６…
…反転レバー、１６ａ……曲げ部、１７……捩じ
りバネ、１９……回転カム、２０……カム板、２
０ａ……カム縁、３０……曲げ部、３５……先羽
根駆動レバー、３５ｂ……孔部、３５ｃ……エツ
ジ、３６……反転レバー、３６ａ……曲げ部、３
７……捩じりバネ、３９……回転カム、４０……
カム板、４０ａ……カム縁、４０ｂ……調整溝、
６２……軸。
FIG. 1 is a plan view of a blade peripheral mechanism of a focal plane shutter according to an embodiment of the present invention, FIG. 2 is a plan view showing a shutter charging state of a shutter drive mechanism according to an embodiment of the present invention, and FIG. The figure is the second
FIG. 4 is a plan view showing the state of the leading blade of the mechanism shown in the figure just before it starts running; FIG. 4 is a plan view showing the leading blade and trailing blade of the mechanism shown in FIGS. , FIG. 5 is a plan view showing the mechanism shown in FIGS. 2 to 4 in a state where the leading blade is disengaged at the forward limit, and FIG. 6 is a plan view of the mechanism shown in FIGS. 2 to 5. A plan view showing a state in which the trailing blade is disengaged at the forward limit; FIG. 7 is an enlarged view of the driving mechanism on the leading blade side;
FIG. 8 is an enlarged view of the drive mechanism on the rear blade side, and FIG. 9 is a sectional view showing the mounting structure of the cam plate on the rear blade side. 1... Lead blade, 1a, 1b, 1c, 1d... Blade, 2... Trailing blade, 2a, 2b, 2c, 2d...
Blade, 3, 4, 5, 6... Connection lever, 7... Base plate, 7a... Aperture, 7b, 7c... Slot, 10... Bent part, 15... Leading blade drive lever, 15b... Hole part , 15c...Etsuji, 16...
...Reversing lever, 16a...Bending portion, 17...Torsion spring, 19...Rotating cam, 20...Cam plate, 2
0a...cam edge, 30...bending part, 35...leading blade drive lever, 35b...hole, 35c...edge, 36...reversing lever, 36a...bending part, 3
7...Torsion spring, 39...Rotating cam, 40...
Cam plate, 40a...cam edge, 40b...adjustment groove,
62... Axis.
Claims (1)
もに、複数の分割羽根から構成される羽根群と連
結され、該羽根群を展開状態と重畳状態の間で走
行させる駆動レバーと、 該駆動レバー上における該駆動レバー自身の旋
回軸とは異なる位置に設けられた軸に揺動自在に
軸着され、前記駆動レバーの前進方向に向けての
前記駆動レバーに対する相対的な旋回限が規制さ
れた反転レバーと、 固定端が前記駆動レバー外に設けられ、作動端
が前記反転レバーの自由端に係合され、該反転レ
バーを前記駆動レバーの前進限に向けて付勢する
付勢手段と、 前記反転レバー上に、該反転レバーの揺動軸と
前記付勢手段の係合点との中間部に設けられたカ
ムフオロアとを備えるとともに、 前記駆動レバーが前進限に到達する以前の箇所
に前記カムフオロアの前記駆動レバーの揺動軸を
中心とした旋回動作を抑制するカム縁が形成され
たカム板を前記シヤツタ地板に対して固着したこ
とを特徴とするフオーカルプレーンシヤツタ。 (2) 実用新案登録請求の範囲第１項記載のフオ
ーカルプレーンシヤツタにおいて、 前記カム板の前記シヤツタ地板に対する取り付
け位置を調整可能としたことを特徴とするフオー
カルプレーンシヤツタ。 (3) 実用新案登録請求の範囲第１項又は第２項
記載のフオーカルプレーンシヤツタにおいて、 前記カムフオロアが前記カム縁に接触する直前
の走行軌跡の接線と前記カムフオロアが前記カム
縁に接触した直後の該カム縁の接線とが鈍角で交
叉することを特徴とするフオーカルプレーンシヤ
ツタ。[Claims for Utility Model Registration] (1) It is pivotally attached to the shutter base plate and connected to a blade group consisting of a plurality of divided blades, and the blade group can be moved between the unfolded state and the superimposed state. a drive lever to be caused to travel; and a drive lever pivotably mounted on a shaft provided on the drive lever at a position different from the pivot axis of the drive lever itself, and with respect to the drive lever in the forward direction of the drive lever. a reversing lever whose relative turning limit is regulated, a fixed end provided outside the drive lever, an operating end engaged with a free end of the reversing lever, and directing the reversing lever toward the forward movement limit of the drive lever; and a cam follower provided on the reversing lever at an intermediate portion between a swing shaft of the reversing lever and an engagement point of the urging means, and the drive lever is at a forward limit. A focal point characterized in that a cam plate is fixed to the shutter base plate, and a cam plate is formed with a cam edge for suppressing the swinging motion of the drive lever of the cam follower about the swing axis at a position before reaching the shutter base plate. Plain shade. (2) A focal plane shutter according to claim 1, wherein the focal plane shutter is characterized in that the attachment position of the cam plate to the shutter base plate is adjustable. (3) In the focal plane shutter according to claim 1 or 2 of the utility model registration claim, the cam follower contacts the cam edge with a tangent to the travel trajectory immediately before the cam follower contacts the cam edge. A focal plane shutter characterized in that the tangent line of the cam edge immediately after intersects with the tangent line at an obtuse angle.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6979890U JP2505467Y2 (en) | 1990-06-30 | 1990-06-30 | Focal plane shutter |
| US07/723,275 US5172152A (en) | 1990-06-30 | 1991-06-28 | Focal plane shutter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6979890U JP2505467Y2 (en) | 1990-06-30 | 1990-06-30 | Focal plane shutter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0428628U true JPH0428628U (en) | 1992-03-06 |
| JP2505467Y2 JP2505467Y2 (en) | 1996-07-31 |
Family
ID=31605414
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6979890U Expired - Fee Related JP2505467Y2 (en) | 1990-06-30 | 1990-06-30 | Focal plane shutter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2505467Y2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011033804A (en) * | 2009-07-31 | 2011-02-17 | Nidec Copal Corp | Focal plane shutter for camera |
| JP2016126036A (en) * | 2014-12-26 | 2016-07-11 | 日本電産コパル株式会社 | Camera shutter and camera |
-
1990
- 1990-06-30 JP JP6979890U patent/JP2505467Y2/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011033804A (en) * | 2009-07-31 | 2011-02-17 | Nidec Copal Corp | Focal plane shutter for camera |
| JP2016126036A (en) * | 2014-12-26 | 2016-07-11 | 日本電産コパル株式会社 | Camera shutter and camera |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2505467Y2 (en) | 1996-07-31 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| LAPS | Cancellation because of no payment of annual fees |