JPS60140020U

JPS60140020U - lens drive mechanism

Info

Publication number: JPS60140020U
Application number: JP2569484U
Authority: JP
Inventors: 野村　正夫; 保高橋
Original assignee: 日本電産コパル株式会社
Priority date: 1984-02-24
Filing date: 1984-02-24
Publication date: 1985-09-17
Also published as: JPH0214004Y2

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図および第２図は従来のレンズ駆動機構に係り、第
１図は要部平面図、第２図は要部断面図、第３図は本考
案の１実施例に係るレンズ駆動機構の要部平面図である
。　　　　　　３・−・・繰出しリング、５−・・・バ
ネ、６・・・レンズ鏡筒１．９・・−ＡＦ前走板、１２
・・・ガバナー機構、１３・・・電磁プランジャ（電磁
手段）、１７・・・バネ、２　０・・・前走係止レバー
、２１・・・バネ、２３・・・駆動板、２４・・・繰出
し係止−バー、２５・・・バネチャージレバー、２６・
・・バネ。1 and 2 relate to a conventional lens drive mechanism, FIG. 1 is a plan view of the main part, FIG. 2 is a sectional view of the main part, and FIG. 3 is a lens drive mechanism according to an embodiment of the present invention. FIG. 3--Feeding ring, 5--Spring, 6--Lens barrel 1.9...-AF front running plate, 12
... Governor mechanism, 13 ... Electromagnetic plunger (electromagnetic means), 17 ... Spring, 20 ... Forward travel locking lever, 21 ... Spring, 23 ... Drive plate, 24 ...・Feeding lock bar, 25...Spring charge lever, 26・
··Spring.

Claims

[Scope of utility model registration request]

A lens barrel unit that supports the lens, a feeding ring that supports the lens barrel unit and moves the lens barrel unit for focus adjustment according to the rotation thereof, and a rotational force in a certain direction on the feeding ring. a first spring that applies a first spring; a drive plate that is actuated by excitation of the electromagnetic means; and a first spring that is engaged with the drive plate and prevents rotation of the feeding ring in a non-energized state of the electromagnetic means to return the feeding ring to the initial position. a feed-out locking lever which is moved by the excitation of the electromagnetic means and allows the rotation of the feed-out ring;
an autotracing front running plate that follows the constant speed movement and brings the feeding ring to the focusing position; a second spring that applies a biasing force to the autofocus front running plate in the shutter release direction; Prevents movement of the autofocus front plate at the initial position opposite to the direction,
FIG. 3 is a plan view of a main part of a lens drive mechanism characterized in that it is provided with a forward locking lever that moves with the initial rotation of the feeding ring and allows the autofocus front plate to slide.