JPS6214405U

JPS6214405U -

Info

Publication number: JPS6214405U
Application number: JP10608785U
Authority: JP
Priority date: 1985-07-10
Filing date: 1985-07-10
Publication date: 1987-01-28

Description

[Brief explanation of the drawing]

第１図は本考案の一実施例を示す縦断面図、第
２図は同上実施例の分解斜視図、第３図は同上実
施例の動作を示す横断面図、第４図は本考案を適
用すべきスリツプ機構を有するカメラの説明図、
第５図は従来例を示す縦断面図、第６図は同上実
施例の分解斜視図である。４０８……従動回転部材、４１０……コイルス
プリング、４１１ａ―ａ，４１１ｂ―ａ……第１
係合部、４１１ａ―ｂ，４１１ｂ―ｂ……第２係
合部。 Fig. 1 is a vertical cross-sectional view showing an embodiment of the present invention, Fig. 2 is an exploded perspective view of the same embodiment, Fig. 3 is a cross-sectional view showing the operation of the above embodiment, and Fig. 4 is a cross-sectional view of the present invention. An explanatory diagram of a camera having a slip mechanism to be applied,
FIG. 5 is a vertical sectional view showing a conventional example, and FIG. 6 is an exploded perspective view of the same embodiment. 408...Followed rotating member, 410...Coil spring, 411a-a, 411b-a...First
Engagement parts, 411a-b, 411b-b... second engagement parts.

Claims

[Claims for Utility Model Registration] 1. A lens drive device that drives a motor, transmits the driving force to a lens via a transmission mechanism, and operates the lens, a driving rotation member included in the transmission mechanism; a driven rotating member included in the transmission mechanism; a coil spring wound tightly around a cylindrical surface formed on either the driving rotating member or the driven rotating member, with both ends being open; and the driving rotating member or formed on the other of the driven rotating members, and engaged with one end of the coil spring in order to press the one end of the coil spring in a direction in which the coil spring is unwound and loosened when the motor rotates in a first direction; a first engaging portion that releases pressure when rotating; and a first engaging portion that is formed on the other end to press the other end of the coil spring in a direction in which the coil spring is unwound when the motor rotates in a second direction. 1. A slip mechanism comprising: a second engaging portion that engages with the slip mechanism and releases the pressure when the motor rotates in the first direction. 2. The driving rotating member and the driven rotating member are fitted coaxially, the cylindrical surface is formed on the outer circumferential surface of the member fitting on the inner circumferential side, and the first and second engaging parts are formed on the outer circumferential surface of the member fitting on the outer circumferential side. The slip mechanism according to claim 1, wherein the slip mechanism is formed on the inner peripheral surface.