JPS6111120U

JPS6111120U - lens drive mechanism

Info

Publication number: JPS6111120U
Application number: JP9167484U
Authority: JP
Inventors: 正明高木
Original assignee: 日本電産コパル株式会社
Priority date: 1984-06-21
Filing date: 1984-06-21
Publication date: 1986-01-23

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 drawings]

第１図は本考案によるレンズ駆動機構の一実施例のセッ
ト状態を示す平面図、第２図は第１図の実施例のシャツ
タレリーズ後の状態を示す平面図、第３図は第１図■一
■線断面図、第４図は第１図の実施例における各カム面
の相互関係を示す展開断面図、第５図は第２図の実施例
における各カム面の相互関係を示す展開断面図、第６図
は本考案の第二の実施例を示す第４図と同様の展開断面
図である，１・・・基板、２・・・前ブロック、３・・・第一カム
リング、４・・・第二カムリング、５，６．９・・・バ
ネ、７・・・レンズ鏡筒ユニット、訃・・前走板、１０
・・・レリーズレバー、１１・・・係止レバー、１２・
・・軸、１３・・・押え板、２２・・・前ブロック、２
３・・・駆動部材、２４・・・カムリング。FIG. 1 is a plan view showing a set state of an embodiment of the lens drive mechanism according to the present invention, FIG. 2 is a plan view showing the state of the embodiment of FIG. 1 after shirt release, and FIG. Figure ■1-line sectional view, Figure 4 is a developed cross-sectional view showing the mutual relationship of each cam surface in the embodiment of Figure 1, and Figure 5 shows the mutual relationship of each cam surface in the embodiment of Figure 2. Developed sectional view, FIG. 6 is a developed sectional view similar to FIG. 4 showing the second embodiment of the present invention, 1... Board, 2... Front block, 3... First cam ring. , 4... Second cam ring, 5, 6.9... Spring, 7... Lens barrel unit, End... Front running plate, 10
...Release lever, 11...Latching lever, 12.
...Shaft, 13...Pressure plate, 22...Front block, 2
3... Drive member, 24... Cam ring.

Claims

[Scope of utility model registration request]

a first cam surface having a slope in the circumferential direction; and a first cam surface having a slope in the circumferential direction so as to define a parallel long groove opposite to the first cam surface; a second cam surface that can rotate in the circumferential direction from a first position where the width of the long groove is relatively wide to a second position where the width of the long groove is relatively narrow; When the second cam surface is in the first position, it can slide lightly within the long groove, but when the second cam surface is in the second position, the first cam surface and the a lens barrel unit supporting a lens having an engaging portion that can be held by two cam surfaces, the second cam surface being in a first position with respect to the first cam surface; When the engaging portion of the lens barrel unit slides in the long groove, the lens barrel unit is driven in the optical axis direction, and after the lens barrel unit reaches a predetermined position, the second cam surface moves to the second cam surface. By being rotated to the second position with respect to the first cam surface, the width of the elongate narrows, and the first cam surface and the second cam surface sandwich the engaging portion of the lens barrel unit. A lens drive mechanism characterized in that the lens drive mechanism is fixedly held.