JPS597438U

JPS597438U - camera aperture device

Info

Publication number: JPS597438U
Application number: JP10339782U
Authority: JP
Inventors: 茂雄林
Original assignee: オリンパス光学工業株式会社
Priority date: 1982-07-07
Filing date: 1982-07-07
Publication date: 1984-01-18
Also published as: JPS6139380Y2

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、従来の絞り装置を有する撮影レンズ鏡筒の上
半部の断面図、第２図は、上記第１図の要部を拡大して
示した断面図、第３図は、上記第１図の鏡筒に用いられ
ている絞り設定環の正面図、第４図は、本考案の絞り装
置を有する撮影レンズ鏡筒の上半部の断面図、第５図は
、上記第４図の要部における本考案の絞り装置の分解斜
視図、第６図は、上記第４図中の絞り設定環の正面図、
第７図は、上記第４図中の鏡枠の正面図、第８図Ａ〜第
１１図Ａは、本考案の絞り装置の組立手順を、それぞれ
、絞り設定環と鏡枠との各回動位置関係によって示す要
部拡大正面図、第８図Ｂ〜第１１図Ｂは、上記第８図Ａ
〜第１１図Ａの、それぞれ■−■線、ＩＸ−ＩＸ線、Ｘ
−Ｘ線およびＸＩ−ＸＩ線に沿う断面図である。２．２２・・・・・・鏡枠、５，２５・・・・・・絞り
設定環、６．２６・・・・・・絞り羽根（絞り機構）、
８，２８・・・・・・絞り連動部材、３３・・・・・・
係合溝（絞り連結用保合溝）、３４・・・・・・斜面部
。Fig. 1 is a sectional view of the upper half of the photographing lens barrel with a conventional aperture device, Fig. 2 is an enlarged sectional view of the main part of Fig. 1 above, and Fig. 3 is the above-mentioned diaphragm. FIG. 4 is a front view of the aperture setting ring used in the lens barrel shown in FIG. 1, FIG. FIG. 6 is an exploded perspective view of the aperture device of the present invention in the main part of the figure; FIG. 6 is a front view of the aperture setting ring in FIG. 4;
FIG. 7 is a front view of the lens frame shown in FIG. 4, and FIGS. 8A to 11A show the assembly procedure of the diaphragm device of the present invention, respectively, and each rotation of the diaphragm setting ring and the lens frame. The enlarged front views of main parts shown in the positional relationship, FIG. 8B to FIG. 11B, are the same as the above-mentioned FIG. 8A.
~ Figure 11A, ■-■ line, IX-IX line, X, respectively
- It is a sectional view along the X line and the XI-XI line. 2.22... Lens frame, 5, 25... Aperture setting ring, 6.26... Aperture blade (aperture mechanism),
8, 28... Aperture interlocking member, 33...
Engagement groove (retaining groove for throttle connection), 34...Slope portion.

Claims

[Scope of Claim for Utility Model Registration] An aperture setting ring that is rotatably held around the outer periphery of the lens frame of a photographic lens, and an aperture setting ring that is rotatable within a certain angle range with respect to the lens frame of the photographic lens. One end is connected to the aperture mechanism, and the other end is rigid in the direction of rotation and elastic in the direction toward the center of rotation, and extends near the end surface of the lens frame. The diaphragm interlocking member that extends out, and the diaphragm interlocking member that is integrally formed with the aperture setting ring at a position near the end face of the lens barrel, and when the aperture setting ring rotates, the aperture interlocking member and the other end of the aperture setting ring rotate. a sloped portion that abuts and deflects the other end in the direction of the rotation center; and a sloped portion that is integrally formed with the aperture setting ring at a position adjacent to the sloped portion, and is deflected in the direction of the rotational center by the sloped portion. An aperture device for a camera, comprising: an aperture coupling engagement groove that is coupled to the other end of the solder aperture interlocking member to connect the aperture mechanism to the aperture setting ring.