JPH01133125U

JPH01133125U -

Info

Publication number: JPH01133125U
Application number: JP2901788U
Authority: JP
Priority date: 1988-03-04
Filing date: 1988-03-04
Publication date: 1989-09-11
Anticipated expiration: 2003-03-04
Also published as: JPH0746892Y2

Description

【図面の簡単な説明】第１図は本考案の１実施例に係るレンズ駆動機
構付きシヤツタ機構の平面図、第２図はシヤツタ
地板の裏側に設けられた絞り羽根兼用のシヤツタ
羽根の平面図。２・３……シヤツタ羽根、４……駆動リング、
４ｂ……レリーズ突起、４ｄ・４ｅ……曲げ部、
５……レンズ駆動リング、５ａ……角ダボ、５ｅ
……ラチエツトギア、９……ステツプモータ、１
１……ラチエツトクリツク、１４……開閉レバー
、１８……開き係止レバー、１８ｂ……第１アー
ム、２０……係止解除爪、２０ａ……規制アーム
、２４……閉鎖レバー、２１……鉄片レバー、２
３……マグネツト、２４ａ……第１係合アーム。[Brief Description of the Drawings] Fig. 1 is a plan view of a shutter mechanism with a lens drive mechanism according to an embodiment of the present invention, and Fig. 2 is a plan view of a shutter blade that is provided on the back side of the shutter base plate and also serves as an aperture blade. . 2, 3...Shutter blade, 4...Drive ring,
4b...Release protrusion, 4d/4e...Bending portion,
5... Lens drive ring, 5a... Square dowel, 5e
... Ratchet gear, 9 ... Step motor, 1
DESCRIPTION OF SYMBOLS 1...Ratchet click, 14...Opening/closing lever, 18...Opening lock lever, 18b...First arm, 20...Latch release claw, 20a...Restriction arm, 24...Closing lever, 21... ...Silver lever, 2
3... Magnet, 24a... First engagement arm.

Claims

[Claims for Utility Model Registration] (1) An opening/closing lever that is swingably supported, is connected to a shutter blade that also serves as an aperture blade, and is always biased in the direction of opening the shutter blade; A shutter mechanism configured to open the shutter blade by releasing the opening/closing lever from an initial set state and close the shutter blade by returning the opening/closing lever to the initial set state, wherein the shutter mechanism is pulse-driven and reciprocatingly rotates. a step motor capable of transmitting the rotation of the step motor, capable of reciprocating motion, and having a release protrusion connected along the direction of movement of the main drive member; The driving member is always biased in the backward movement direction, and the main driving member is driven to follow the main driving member in the forward movement direction, and the locking point of the main driving member is fixed in the backward movement direction of the photographing lens. A lens drive member having ratchet gears arranged in series corresponding to the number of set stages and connected to a position adjustment mechanism of the photographic lens; an opening that is swingably supported adjacent to the travel path of the main drive member, and has a ratchet click biased toward a ratchet gear, and a locking portion that locks the opening/closing lever in an initial set state; a locking lever; and at least one locking lever pivotally supported on the opening locking lever, when the main drive member moves the lens drive member forward until the ratchet gear is in a lockable position by the ratchet click. a lock release lever whose tip portion faces a path through which the release protrusion passes, and which is restricted from swinging in the same direction as the swing direction of the opening lock lever when releasing the lock; and after the main driving member is moved forward until the lens driving member is locked by the ratchet click at a position corresponding to the photographing distance, at least one of the release protrusions is moved into the locking position. A shutter mechanism with a lens drive mechanism, characterized in that the opening/closing lever is released by moving the main drive member back until it passes the tip of the lock release lever. (2) Utility Model Registration The shutter mechanism with a lens drive mechanism according to claim 1 is supported in a swingable manner, and when engaged with the opening/closing lever, the opening/closing lever is moved in the direction of opening the shutter blade. a closing lever that biases the shutter blade in the direction of closing with a force greater than the biasing force; an iron piece lever that is swingably supported and engaged with the closing lever in both directions; a magnet that magnetizes the iron piece lever at a position where the closing lever is retracted out of the swing range; the magnet is demagnetized at the end of exposure timing, and the opening/closing lever is closed by the biasing force of the closing lever. A shutter mechanism with a lens drive mechanism, which is characterized in that it swings in a direction. (3) Utility model registration In the shutter mechanism with a lens drive mechanism according to claim 2, an arm extending from the closing lever is connected to a first protrusion formed on the main drive member. The arm portion extending from the opening/closing lever is configured to abut against the member at an initial position to restrict the closing lever from swinging in a direction that urges the opening/closing lever in the closing direction, and the arm portion extending from the opening/closing lever The main drive member is brought into contact with the first protrusion formed on the drive member at the initial position to prevent the opening locking lever from swinging in the direction of releasing the lock of the opening/closing lever. None, the ratchet click is in contact with a second protrusion formed on the main drive member at the initial position of the main drive member to restrict the ratchet click from swinging in the direction of the ratchet gear. None, when the main drive member moves back, the first protrusion comes into contact with an arm extending from the closing lever to initially set the closing lever, and the first protrusion opens the opening. The opening locking lever is initially set by contacting the arm portion extending from the locking lever,
A shutter mechanism with a lens drive mechanism, characterized in that the second protrusion comes into contact with the ratchet click to initially set the ratchet click.