JPH0175223U

JPH0175223U -

Info

Publication number: JPH0175223U
Application number: JP1987171470U
Authority: JP
Priority date: 1987-11-10
Filing date: 1987-11-10
Publication date: 1989-05-22

Description

[Brief explanation of the drawing]

第１図〜第１１図はこの考案の一実施例を示し
たもので、各図は次のものを表している。第１図
は絞り装置の正面図、第２図は絞り装置の底面図
、第３図は絞り装置の背面図、第４図は絞り装置
の左側面図、第５図は地板１と作動レバー１００
の取付状態を示す図、第６図は地板１の構造を示
す図、第７図は地板１に絞り羽根３，５を載置し
た状態を示す図、第８図は押さえ板７の構造を示
す図、第９図及び第１０図は２枚の絞り羽根３，
５の形状を示す図、第１１図は駆動装置９の構成
を示す図である。第１２図は従来技術を説明する
ための図である。１……地板、３，５……絞り羽根、７……押さ
え板、９……駆動装置、１２……受光開口、２４
〜２７……ガイドピン、５１，５２……ガイド穴
、５３……長穴、５５……フイルタ、５７，５８
……ガイド穴、５９……長穴、７０……受光開口
。 1 to 11 show an embodiment of this invention, and each figure represents the following. Figure 1 is a front view of the throttle device, Figure 2 is a bottom view of the throttle device, Figure 3 is a rear view of the throttle device, Figure 4 is a left side view of the throttle device, and Figure 5 is the main plate 1 and operating lever. 100
6 is a diagram showing the structure of the main plate 1, FIG. 7 is a diagram showing the aperture blades 3 and 5 mounted on the main plate 1, and FIG. 8 is a diagram showing the structure of the holding plate 7. The figures shown in FIGS. 9 and 10 show two aperture blades 3,
FIG. 11 is a diagram showing the configuration of the drive device 9. FIG. FIG. 12 is a diagram for explaining the prior art. 1... Base plate, 3, 5... Aperture blade, 7... Holder plate, 9... Drive device, 12... Light receiving aperture, 24
~27... Guide pin, 51, 52... Guide hole, 53... Long hole, 55... Filter, 57, 58
... Guide hole, 59 ... Long hole, 70 ... Light receiving aperture.

Claims

[Claims for Utility Model Registration] (1) In a camera opening/closing device that opens and closes the light receiving aperture by moving a blade along a guide plate having a light receiving aperture, the guide plate has a first guide pin on a side thereof, and a first guide pin on the side thereof. a second guide pin that is thinner than the first guide pin, the blade has an opening edge that adjusts the opening amount of the light receiving aperture, and a first guide hole that engages with the first guide pin on one side. and a second guide hole that is narrower in width than the first guide hole and engages with the second guide pin. (2) Utility Model Registration In the camera opening/closing device according to claim 1, the blade has a distance from the side edge of the blade to the second guide hole than a distance from the side edge of the blade to the first guide hole. A camera opening/closing device characterized by its short length. (3) Utility model registration Claim 1: The camera opening/closing device according to claim 1, wherein the second guide pin is closer to the light receiving aperture than the first guide pin. Device.