JPS6074133U

JPS6074133U - Shutter blade damage prevention structure

Info

Publication number: JPS6074133U
Application number: JP16583183U
Authority: JP
Inventors: 靖宏豊田; 文夫島田; 克美吉田
Original assignee: キヤノン株式会社; キヤノン電子株式会社
Priority date: 1983-10-25
Filing date: 1983-10-25
Publication date: 1985-05-24
Also published as: JPS6347860Y2

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図乃至第３図は従来例を示すもので、第１図はシャ
ッタの平面図、第２図は仕切板の平面図、第３図ａ、　
ｂ、　ｃはシャッタ作動状態を示す断面図、第４図及び
第５図は本考案実施例を示すもので第４図は仕切板の平
面図、第５図ａ、　ｂ。Ｃは第３図に対応するシャッタ作動状態を示す断面図、
第６図及び第７図は他の実施例を示すもので、第６図は
仕切板の平面図、第７図ａ、　ｂ、　ｃは第３図及び第
５図に対応するシャッタ作動状態を示す断面図である。１：シャッタ地板、２：カバー板、３，３１゜３２：仕
切板、３ａｔ　３１ａ、３２ａ：開口の後羽根走行方向
に対向する辺、３１ｄ、３２ｄ：傾斜面、８ａ〜８ｃ：
先羽根群、９ａ〜９ｃ：後羽根群。Figures 1 to 3 show conventional examples, where Figure 1 is a plan view of the shutter, Figure 2 is a plan view of the partition plate, Figure 3 a,
b, c are cross-sectional views showing the shutter operating state, Figs. 4 and 5 show embodiments of the present invention, Fig. 4 is a plan view of the partition plate, and Figs. 5 a, b. C is a sectional view showing the shutter operating state corresponding to FIG. 3;
6 and 7 show other embodiments, FIG. 6 is a plan view of the partition plate, and FIGS. 7a, b, and c show the shutter operating states corresponding to FIGS. 3 and 5. FIG. 1: Shutter base plate, 2: Cover plate, 3, 31° 32: Partition plate, 3at 31a, 32a: Side of opening facing the rear blade running direction, 31d, 32d: Slanted surface, 8a to 8c:
Leading blade group, 9a to 9c: trailing blade group.

Claims

[Scope of utility model registration request]

In a focal plane shutter in which a leading blade group and a trailing blade group run separately in a unique space separated by a partition plate to open and close a shutter opening, the blades are formed into a frame shape that keeps the opening of the partition plate on the same plane. Protrude into the group running space,
One side of the opening facing the blade running direction is retracted from the partition plate surface facing the blade group running space in a direction opposite to the blade group running space side, and a slope or slope is formed between the partition plate surface and the blade running direction. A structure that prevents shutter blades from being damaged, which is characterized by a curved surface that connects them.