JPH0239217U

JPH0239217U -

Info

Publication number: JPH0239217U
Application number: JP11799088U
Authority: JP
Priority date: 1988-09-06
Filing date: 1988-09-06
Publication date: 1990-03-15

Description

[Brief explanation of drawings]

第１図〜第２４図はこの考案の一実施例を示し
たもので、各図は次のものを表している。第１図
はカメラの正面図、第２図はカメラの背面図、第
３図はシヤツタ装置の平面図、第４図はシヤツタ
装置の正面図、第５図はシヤツタ装置の背面図、
第６図及び第７図はシヤツタ装置の分解斜視図、
第８図Ａはシヤツタ１１２の動作状態を示す図、
第８図Ｂはシヤツタの振動防止機構の構成を示図
す、第９図は絞りレバー１２２の動作状態を示す
図、第１０図はレンズ駆動リング１３７の動作状
態を示す図、第１１図はレリーズレバー２２３及
びストツパ２０３の構造を示す図、第１２図はロ
ツクレバー２２７の動作状態を示す図、第１３図
はストツパ２４３の構造を示す図、第１４図はス
トツパ２４３の動作状態を示す図である。また、
第１５図〜第１７図はＡＥレバー２４６の構造を
示す図、第１８図〜第２０図はＡＦレバー２４９
の構造を示す図、第２１図は制御回路図、第２２
図及び第２３図はシヤツタ装置の待機状態を示す
図、第２４図はタイミングチヤートである。第２
５図は従来のシヤツタ装置の説明図である。５２……レリーズボタン、１００……基板、１
１０……シヤツタ部、１１２……シヤツタ、１１
５……係止部、１１６……作動部、１２０……絞
り機構、１３０……ＡＦ／ＡＥ切り替え機構、１
８０……測距ユニツト、２００……ＡＦ／ＡＥ切
り替えユニツト、２２０……レリーズ機構、２２
３……レリーズレバー、２４０……ＡＦ／ＡＥ駆
動機構、２４６……シヤツタ開閉レバー（ＡＥレ
バー）、２４９……レンズ駆動レバー（ＡＦレバ
ー）、４００……振動防止機構。 1 to 24 show one embodiment of this invention, and each figure represents the following. Fig. 1 is a front view of the camera, Fig. 2 is a rear view of the camera, Fig. 3 is a plan view of the shutter device, Fig. 4 is a front view of the shutter device, Fig. 5 is a rear view of the shutter device,
Figures 6 and 7 are exploded perspective views of the shutter device;
FIG. 8A is a diagram showing the operating state of the shutter 112;
FIG. 8B shows the structure of the shutter vibration prevention mechanism, FIG. 9 shows the operating state of the aperture lever 122, FIG. 10 shows the operating state of the lens drive ring 137, and FIG. 11 shows the operating state of the lens drive ring 137. FIG. 12 is a diagram showing the structure of the release lever 223 and the stopper 203, FIG. 12 is a diagram showing the operating state of the lock lever 227, FIG. 13 is a diagram showing the structure of the stopper 243, and FIG. 14 is a diagram showing the operating state of the stopper 243. be. Also,
15 to 17 are diagrams showing the structure of the AE lever 246, and FIGS. 18 to 20 are diagrams showing the AF lever 249.
Figure 21 is a control circuit diagram, Figure 22 is a diagram showing the structure of
23 and 23 are diagrams showing the standby state of the shutter device, and FIG. 24 is a timing chart. Second
FIG. 5 is an explanatory diagram of a conventional shutter device. 52... Release button, 100... Board, 1
10...Shutter part, 112...Shutter, 11
5... Locking part, 116... Operating part, 120... Aperture mechanism, 130... AF/AE switching mechanism, 1
80... Distance measuring unit, 200... AF/AE switching unit, 220... Release mechanism, 22
3... Release lever, 240... AF/AE drive mechanism, 246... Shutter opening/closing lever (AE lever), 249... Lens drive lever (AF lever), 400... Vibration prevention mechanism.

Claims

[Claim for Utility Model Registration] A single-blade shutter that is pivotally supported on a substrate having an optical path opening and rotates around this pivot to open and close the optical path, and a biasing spring that biases the shutter in the closing direction. and a shutter opening/closing member that opens and closes the shutter, the shutter opening/closing member having a driving section that is interlocked with the release lever and that engages with an actuating section on the opposite side of the shutter shaft from the light shielding section of the shutter with respect to the shutter pivot. A rocker that is pivotally supported on a base plate, has a locking claw at one end that engages with the operating part of the shutter to prevent it from opening, and has a release protrusion at the other end that slides into contact with a release cam surface provided on the shutter opening/closing member. a rocker biasing spring that biases the locking pawl of the rocker member in a direction to engage the actuating portion; and a rocker biasing spring that presses the release protrusion of the rocker arm to swing the rocker member during shutter opening/closing operations. a shutter vibration prevention mechanism comprising: a shutter opening/closing member having a release cam surface for releasing the locking pawl from engagement with the operating portion;