JPS6324534U - - Google Patents
Info
- Publication number
- JPS6324534U JPS6324534U JP11677386U JP11677386U JPS6324534U JP S6324534 U JPS6324534 U JP S6324534U JP 11677386 U JP11677386 U JP 11677386U JP 11677386 U JP11677386 U JP 11677386U JP S6324534 U JPS6324534 U JP S6324534U
- Authority
- JP
- Japan
- Prior art keywords
- aperture
- lever
- rotated
- aperture control
- pawl
- 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
- 210000000078 claw Anatomy 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Diaphragms For Cameras (AREA)
Description
第１図および第２図は本考案に係るレンズ絞り
制御機構の一実施例を示す要部側面図およびその
要部斜視図、第３図は本考案を適用したレンズ絞
り制御機構の概略構成を説明するための概略斜視
図、第４図は本出願人が先に考え出したレンズ絞
り制御機構を例示する概略側面図、第５図はその
不具合を説明するための図である。
１……絞りリング、１ａ……係合片、２……絞
り込み用歯車、３……開放スプリング、１０……
絞りレバー、１０ａ……係合片、１０ｂ……ガイ
ド溝、１１……レンズ側自動絞りレバー、１２…
…ストツパピン、１４，１５，１６……絞り制御
ギヤ列、１７……絞り制御チヨツパ、１８……フ
オトカプラ、１９……絞り制御用マグネツト、２
０……ラチエツト、２１……爪レバー、２１ａ…
…絞り制御爪、２２……第１の絞り制御レバー、
２２ａ……一端、２３……第２の絞り制御レバー
、２４……支軸、２５……スプリング、２６……
ピン、２７……チヤージレバー端、３０……作用
端。
1 and 2 are a side view and a perspective view of the main parts of an embodiment of the lens aperture control mechanism according to the present invention, and FIG. 3 is a schematic configuration of the lens aperture control mechanism to which the present invention is applied. FIG. 4 is a schematic side view illustrating a lens diaphragm control mechanism previously devised by the applicant, and FIG. 5 is a diagram illustrating its defects. DESCRIPTION OF SYMBOLS 1...Aperture ring, 1a...Engagement piece, 2...Aperture gear, 3...Opening spring, 10...
Aperture lever, 10a... Engaging piece, 10b... Guide groove, 11... Lens side automatic aperture lever, 12...
...Stopper pin, 14, 15, 16...Aperture control gear train, 17...Aperture control stopper, 18...Photocoupler, 19...Aperture control magnet, 2
0... Ratchet, 21... Claw lever, 21a...
...Aperture control claw, 22...First aperture control lever,
22a... One end, 23... Second aperture control lever, 24... Support shaft, 25... Spring, 26...
Pin, 27...Charge lever end, 30...Working end.
Claims (1)
に抗して所定角度回動される絞りリングと、この
絞りリングに追随して回動動作されることでレン
ズの絞り込みを行ないかつ撮影終了後に前記絞り
リングにより開放位置まで復旧回動される絞りレ
バーと、この絞りレバーに噛合して回動される絞
り制御ギヤ列の最終歯車と一体に設けられたラチ
エツトと、このラチエツトに対し撮影時に噛合す
ることで前記絞りレバーをロツクする絞り制御爪
を有する爪レバーと、この爪レバーを撮影終了後
にラチエツトとの噛合解除方向に回動させる第１
の絞り制御レバーと、この第１の絞り制御レバー
とスプリングにより一体的に連結されかつ前記爪
レバーを撮影時においてラチエツトに噛合する方
向に回動させる第２の絞り制御レバーを備え、前
記第１の絞り制御レバーは、その一端が撮影終了
後においてモータで回動されることで絞り制御系
をチヤージするように構成されるとともに、その
他端に前記爪レバーをラチエツトとの噛合解除方
向に回動させるための作用端が一体に設けられて
いることを特徴とするレンズ絞り制御機構。 An aperture ring is rotated by a motor at a predetermined angle against the biasing force of an opening spring during photography, and the aperture ring is rotated following this aperture ring to narrow down the lens, and after photography is completed, the aperture ring is rotated by a predetermined angle. The aperture lever is rotated to return to the open position, and the ratchet is provided integrally with the final gear of the aperture control gear train that is rotated in engagement with the aperture lever. A pawl lever having an aperture control pawl that locks the aperture lever, and a first pawl lever that rotates the pawl lever in the direction of disengaging it from the ratchet after photographing is completed.
a second aperture control lever which is integrally connected to the first aperture control lever by a spring and rotates the pawl lever in a direction in which it engages with the ratchet during photographing; The aperture control lever is configured such that one end thereof is rotated by a motor to charge the aperture control system after photography is completed, and the other end is configured to rotate the pawl lever in the direction of disengaging from the ratchet. A lens aperture control mechanism characterized by having an integrally provided working end for controlling the aperture.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11677386U JPS6324534U (en) | 1986-07-31 | 1986-07-31 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11677386U JPS6324534U (en) | 1986-07-31 | 1986-07-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6324534U true JPS6324534U (en) | 1988-02-18 |
Family
ID=31001676
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11677386U Pending JPS6324534U (en) | 1986-07-31 | 1986-07-31 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6324534U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5891436A (en) * | 1981-11-27 | 1983-05-31 | Kyocera Corp | Diaphragm controlling mechanism of single-lens reflex camera |
-
1986
- 1986-07-31 JP JP11677386U patent/JPS6324534U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5891436A (en) * | 1981-11-27 | 1983-05-31 | Kyocera Corp | Diaphragm controlling mechanism of single-lens reflex camera |
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