JPS62161234U

JPS62161234U -

Info

Publication number: JPS62161234U
Application number: JP15929786U
Authority: JP
Priority date: 1986-10-17
Filing date: 1986-10-17
Publication date: 1987-10-14
Also published as: JPH0114015Y2

Description

[Brief explanation of drawings]

第１図は本考案に係る実施例の平面図で、第２
図、第３図は第１図の動作説明図で、第４図は他
の実施例を示した平面図である。１０……シヤツタプレート、１１……セツトレ
バー、１１ａ……カム面、１１ｂ……セツトピン
、１５……ストツパ、１６……ロツクレバー、１
６ａ……フツク部、１６ｂ……突部、１７……ス
トツパ、１８……先羽根駆動アーム、１８ａ……
カム面、１８ｂ……立ち曲げ部、１８ｃ……羽根
支持ピン、１８ｄ……セツトローラ、２１……先
羽根係止レバー、２１ａ……フツク、２５……後
羽根駆動アーム（第１のレバー）、２５ａ……フ
ツク、２５ｂ……アーム部、２５ｃ……当接面、
２５ｄ……セツトローラ、２８……後羽根作動レ
バー（第２のレバー）、２８ａ……立ち曲げ部、
２８ｂ……羽根支持ピン、３１……後羽根係止レ
バー。 FIG. 1 is a plan view of an embodiment according to the present invention, and FIG.
3 are explanatory diagrams of the operation of FIG. 1, and FIG. 4 is a plan view showing another embodiment. 10...Shutter plate, 11...Set lever, 11a...Cam surface, 11b...Set pin, 15...Stopper, 16...Lock lever, 1
6a...Hook part, 16b...Protrusion, 17...Stopper, 18...Lead blade drive arm, 18a...
Cam surface, 18b... Standing bent portion, 18c... Blade support pin, 18d... Set roller, 21... Leading blade locking lever, 21a... Hook, 25... Trailing blade drive arm (first lever), 25a... Hook, 25b... Arm portion, 25c... Contact surface,
25d... Set roller, 28... Trailing blade operating lever (second lever), 28a... Standing bending portion,
28b...Blade support pin, 31...Rear blade locking lever.

Claims

[Scope of Claim for Utility Model Registration] (1) A leading blade driving member that operates the leading blade to a position where the aperture is opened and a position where the aperture is covered, and which has a habit of operating in the opening direction; a rear blade actuating member which is actuated between a covering position and an opening position and is provided with a biasing means serving as a source of actuation force in the opening direction; and a rear blade actuating member arranged movably between a first position and a second position. a trailing blade drive member having an actuation behavior from a first position to a second position, and actuating the trailing blade from a position for opening the aperture to a position for covering the aperture via the trailing blade actuating member; a leading blade locking member that locks the leading blade driving member at a position where the leading blade covers the aperture and releases the locking in conjunction with a reso operation of the shutter; and a leading blade locking member that locks the leading blade driving member at a position where the leading blade covers the aperture; a rear blade locking member that locks and releases the lock upon generation of a shutter cover signal; a rear blade actuating member that locks the rear blade at a position where the rear blade covers the aperture; includes a locking member that releases the locking when the leading blade is operated to a position covering the aperture, and a leading blade that locks the leading blade driving member to the leading blade locking member by a set operation so that the leading blade covers the aperture. 1. A light leakage prevention structure for a focal plane shutter, comprising a set member for displacing the rear blade driving member to a first position where the rear blade driving member is locked to the rear blade locking member. (2) A light leakage prevention structure for a focal plane shutter according to claim 1, wherein the leading blade locking member and the locking member are the same member.