JPS6098825U

JPS6098825U - Camera electromagnetic shutter device

Info

Publication number: JPS6098825U
Application number: JP19067983U
Authority: JP
Inventors: 勲芝田; 直紀小林; 窪田　峰夫
Original assignee: 日本精密工業株式会社
Priority date: 1983-12-09
Filing date: 1983-12-09
Publication date: 1985-07-05

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) [Summary] 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カメラの電磁シャッタ装置の分
解斜視図、第２図は第１図に於ける動作状態を示す要部
平面図、第３図及び第４図は本考案に係わるカメラの電
磁シャッタ装置の絞り兼用シャッタ羽根の他の実施例を
示す斜視図、第５図は本考案に係わる電磁シャッタ装置
の露出制御回路図、第６図は第１図に於ける電磁シャッ
タ装置によるシャッタ波形、第７図は第１図に於ける電
磁シャッタ装置のプログラム特性線図である。図中、３・・・・・・プリント基板、３ａ、３ｂ・・・
・・・ストッパー、Ｑ・・・・・・静止位置設定手段、
４・・・・・・シャッタ基板、２・・・・・・駆動板、
８・・・・・・押え板、５Ａ。５Ｂ・・・・・・絞り兼用シャッタ羽根、Ａ４．Ｂ４，
５　ｄ・・・・・・大開口部、Ｆｌ、Ａ３．Ｂ３，５ｃ
・・・・・・小開口部Ｆ２．１・・・・・・電磁駆動装
置。、、。＆　　ｔｂ　　１ｄ　　　　　　ｌ第３図Ａ？第４図Fig. 1 is an exploded perspective view of the electromagnetic shutter device of the camera according to the present invention, Fig. 2 is a plan view of the main parts showing the operating state in Fig. 1, and Figs. 3 and 4 are the camera according to the present invention. FIG. 5 is an exposure control circuit diagram of the electromagnetic shutter device according to the present invention; FIG. Shutter Waveform FIG. 7 is a program characteristic diagram of the electromagnetic shutter device in FIG. 1. In the figure, 3... printed circuit board, 3a, 3b...
... Stopper, Q ... Stationary position setting means,
4...Shutter board, 2...Drive plate,
8... Presser plate, 5A. 5B...Shutter blade that also serves as aperture, A4. B4,
5 d...Large opening, Fl, A3. B3,5c
...Small opening F2.1...Electromagnetic drive device. ,,. & tb 1d l Figure 3 A? Figure 4

Claims

[Scope of utility model registration request]

(1) An appropriate intermediate position set by the intermediate position setting means within the drive range regulated by a pair of stoppers is set as the rest position, and the camera is driven in different directions from that rest position depending on the brightness of the subject. An electromagnetic shutter device for a camera comprising an electromagnetic drive device that moves reciprocatingly and connected to a shutter blade that also serves as an aperture that forms two different opening diameters depending on the driving direction of the electromagnetic drive device.

(2) The electromagnetic shutter device for a camera according to claim 1, wherein the shutter blade also serves as a diaphragm and has three openings forming the two types of opening diameters.

(3) The pair of stoppers that regulate the driving range of the electromagnetic drive device are fixed terminals of a switch that receives a single signal from the flash of a flash device that is built in or removably attached to the camera. Range paragraph (1) and (
2) The electromagnetic shutter device for the camera described in item 2).

(4) The electromagnetic shutter device for a camera according to claims (1) to (3), wherein the intermediate position setting means comprises a spring 9 and a shaft 41.