JPH0175224U

JPH0175224U -

Info

Publication number: JPH0175224U
Application number: JP1987171471U
Authority: JP
Priority date: 1987-11-10
Filing date: 1987-11-10
Publication date: 1989-05-22
Anticipated expiration: 2002-11-10
Also published as: JP2531764Y2

Description

[Brief explanation of the drawing]

第１図〜第１５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
は絞り装置の側面図、第２図は地板１の正面図、
第３図は第２図のＡ―Ａ断面図、第４図は地板１
の背面図、第５図及び第６図は２枚の絞り羽根３
，５の形状を示す図、第７図は押さえ板７の構造
を示す図、第８図は地板１に絞り羽根３，５を載
置した状態を示す図、第９図は絞り羽根３，５を
地板１と押さえ板７との間にはさんだ状態を示す
図、第１０図は地板１に設けたリブの高さを示す
図、第１１図は押さえ板７に設けたリブの高さを
示す図、第１２図は絞り羽根３，５を全開した状
態を示す図、第１３図は駆動装置９の構成を示す
図、第１４図及び第１５図は地板１と押さえ板７
とに設けたリブの対向状態を示す断面図である。
第１６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、１５
，１６……作動穴、２４，２５……ガイドピン、
２８，３０，３１，３２，３３，３４，８２，８
２Ａ，８１，８２Ｂ，８３，８５，８６，８７，
８８，２０１，２０２，２０３……リブ、５１，
５７……ガイド穴、５３，５９……ピン穴、７０
……受光開口、７１，７２……作動穴、１００…
…作動レバー、１２１，１２２……駆動ピン。 1 to 15 show one embodiment of this invention, and each figure represents the following. Figure 1 is a side view of the aperture device, Figure 2 is a front view of the main plate 1,
Figure 3 is a sectional view taken along line A-A in Figure 2, and Figure 4 is the main plate 1.
The rear view, Figures 5 and 6 show two aperture blades 3.
, 5, FIG. 7 is a diagram showing the structure of the holding plate 7, FIG. 8 is a diagram showing the aperture blades 3, 5 mounted on the main plate 1, and FIG. 9 is a diagram showing the aperture blades 3, 5. Figure 10 shows the height of the ribs provided on the base plate 1, and Figure 11 shows the height of the ribs provided on the base plate 7. FIG. 12 is a diagram showing the aperture blades 3 and 5 fully opened, FIG. 13 is a diagram showing the configuration of the drive device 9, and FIGS. 14 and 15 are diagrams showing the main plate 1 and the holding plate 7.
FIG. 3 is a cross-sectional view showing a state in which ribs provided on both sides face each other.
FIG. 16 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, 15
, 16... operating hole, 24, 25... guide pin,
28, 30, 31, 32, 33, 34, 82, 8
2A, 81, 82B, 83, 85, 86, 87,
88, 201, 202, 203...rib, 51,
57... Guide hole, 53, 59... Pin hole, 70
...Light receiving aperture, 71, 72...Operating hole, 100...
...Operating lever, 121, 122...Driving pin.

Claims

[Claims for Utility Model Registration] (1) The first and second blades are supported movably in relatively opposite directions between first and second guide plates having light-receiving openings facing each other to receive the light. In the opening/closing device for a camera that opens and closes an opening, the first and second guide plates are provided with ribs that contact the first blade or the second blade, and the ribs provided on the first guide plate and the ribs that contact the first blade or the second blade are provided. An opening/closing device for a camera, characterized in that ribs provided on a second guide plate are arranged to face each other. (2) Utility Model Registration In the camera opening/closing device as set forth in claim 1, the rib is located at a position where it contacts an intermediate portion in the width direction of the first and second blades. A camera opening/closing device characterized in that the blade is long in the direction of movement. (3) Utility model registration In the camera opening/closing device according to claim 1, one of the first and second guide plates is made of synthetic resin and the other guide plate is made of metal. A camera opening/closing device characterized by: (4) Utility model registration In the camera opening/closing device according to claim 1, two ribs are provided on each of the first and second guide plates along the moving direction of the first and second blades. An opening/closing device for a camera, characterized in that: