JPS59123848U

JPS59123848U - Single-lens reflex camera viewfinder lock release device

Info

Publication number: JPS59123848U
Application number: JP1697283U
Authority: JP
Inventors: 関田　実; 茂大横田
Original assignee: ミノルタ株式会社
Priority date: 1983-02-08
Filing date: 1983-02-08
Publication date: 1984-08-21

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 drawings]

第１図は本考案のロック解除装置を設置した一眼レフレ
ックスカメラのボディ及びファインダー装置の部分破断
外観斜視図、第２図は本考案の一実施例を使用したファ
インダー装置の部分破断左側面図、第３図は同上実施例
の第２図Ａ−Ａにおける部分断面図、第４図はファイン
ダー装置の第２図Ｂ−Ｂにおける部分断面図である。１・・・・・・カメラボディ、１ｂ・・・・・・ファイ
ンダー装着用開口、３ａ・・・・・・焦点板、８・・・
・・・凹レール部材、８ａ・・・・・・ロック用係合部
、１０・・・・・・ファインダー装置、２０・・・・・
・凸レール部材、２６・・・・・・ロック解除操作部材
、３１・・・＝・・ペンタプリズム、３４・・・・・・
ロックレバ−０Fig. 1 is a partially cutaway external perspective view of the body and finder device of a single-lens reflex camera equipped with the lock release device of the present invention, and Fig. 2 is a partially cutaway left side view of the finder device using an embodiment of the present invention. , FIG. 3 is a partial sectional view taken along the line AA in FIG. 2 of the same embodiment, and FIG. 4 is a partial sectional view taken along the line BB in FIG. 2 of the finder device. 1... Camera body, 1b... Opening for attaching finder, 3a... Focus plate, 8...
...Concave rail member, 8a...Lock engagement part, 10...Finder device, 20...
・Convex rail member, 26...Lock release operation member, 31...=...Penta prism, 34...
Lock lever 0

Claims

[Scope of utility model registration request]

Uses an exchangeable finder device that is removably attached to the finder attachment opening formed from the top to the back of the camera body by sliding it from the back of the camera to the front approximately parallel to the focusing plate installed on the camera body. In a single-lens reflex camera, a pair of rail members are provided on both sides of the finder device and are parallel to each other and regulate the direction in which the camera and the finder device are attached and detached, and a pair of rail members that are fitted into the rail members to allow the attaching and detaching operation of the finder device. A second pair of rail members installed substantially parallel to the optical axis of the photographic lens on both sides of the camera's finder attachment opening to regulate the direction, and a locking recess formed in the second pair of rail members. is biased so that it can fit into the locking recess, and is rotated and fitted between the side surface of the finder device and the pentaprism in the finder device in a plane substantially parallel to the side surface of the finder device against the biasing force. a lock member installed to release the lock; and an operating section installed on the side of the finder device so as to rotate in a plane substantially parallel to the rotation plane of the lock member, and rotated by manual operation from outside the finder device. Then, it is biased to the stop position, rotates by a predetermined angle together with the operating part against the biasing force, and at the end of the rotation engages and pushes the locking member to release the engagement between the locking member and the locking recess. A viewfinder lock release device for a single-lens reflex camera, which includes a lock release member consisting of a release part that allows the camera to move.