JPS601130U

JPS601130U - shutter device

Info

Publication number: JPS601130U
Application number: JP9240583U
Authority: JP
Inventors: 勲芝田
Original assignee: 日本精密工業株式会社
Priority date: 1983-06-15
Filing date: 1983-06-15
Publication date: 1985-01-07

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第１図は本考案に係わるシャッタ装置の斜視図、第２図
は第１図における第２駆動部材の保持機構の他の実施例
を示す図、第３図は本考案に用いられる回路の一実施例
を示す図、第４図は第１図におけるシャッタ装置の各動
作状態図、第５図は本考案のシャッタ装置に於けるシャ
ッタ波形を示す図である。図中、１０・・・第１駆動部材、２０・・・係止部材、
３０・・・第２駆動部材、４０・・・中間部材、５０・
・・開閉レバー、６０・・・開閉部材、７０・・・捲き
上げレバー、Ａ・・・露出制御回路、Ｂ・・・閃光回路
、Ｓ・・・測光スイッチ、Ｘ・・・シンクロスイッチ、
Ｍ・・・露出制御用電磁石。FIG. 1 is a perspective view of a shutter device according to the present invention, FIG. 2 is a diagram showing another embodiment of the holding mechanism for the second drive member in FIG. 1, and FIG. 3 is an illustration of a circuit used in the present invention. FIG. 4 is a diagram showing various operating states of the shutter device in FIG. 1, and FIG. 5 is a diagram showing shutter waveforms in the shutter device of the present invention. In the figure, 10...first driving member, 20...locking member,
30... Second drive member, 40... Intermediate member, 50...
... Opening/closing lever, 60... Opening/closing member, 70... Winding up lever, A... Exposure control circuit, B... Flash circuit, S... Photometering switch, X... Synchro switch,
M: Electromagnet for exposure control.

Claims

[Scope of utility model registration request]

A first driving member 10 that is released by a locking member 20 and returns from a charging position at approximately constant speed;
An electromagnet M is controlled by an exposure control circuit A that operates in conjunction with the return operation of the first
The second drive member 30 returns from the charging position following the return operation of the first drive member 10 at a preset speed faster than the return speed of the drive member 10, and the first drive member 10 and the second drive member 30 The shutter is operated by an intermediate member 40 supported between the first drive member 10 and the second drive member 30 and displaced by the relative speed difference between the first drive member 10 and the second drive member 30, and an opening/closing member 60 such as a shutter blade that also serves as an aperture linked to the intermediate member 40. A shutter device configured to close a synchro switch S of a flash device by the returning operation of the second drive member 30.