JPS5917412U

JPS5917412U - Buffer mechanism in extender

Info

Publication number: JPS5917412U
Application number: JP11361082U
Authority: JP
Inventors: 久夫竹前; 政樹山田
Original assignee: 富士写真光機株式会社
Priority date: 1982-07-26
Filing date: 1982-07-26
Publication date: 1984-02-02
Also published as: JPS6315867Y2

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図はエクステングー内蔵ズームレンズの斜視図、第
２図は本考案機構を内蔵したエクステンダーの内部機構
図、第３図はこのエクステンダーの要部断面図および第
４図はこのエクステンダーに配置されている緩衝機構の
分解斜視図をそれぞれ示す。３・・・エクステンダー、３１・・・操作ツマミ、３２
゜３３．３４・・・ギヤートレイン、３５．３６・・・
植設ピン、３７．４０・・・バネ、３８・・・係合部材
、４１・・・調整ネジ、５０．５２・・・ストッパー。Fig. 1 is a perspective view of a zoom lens with a built-in extender, Fig. 2 is an internal mechanism diagram of an extender incorporating the mechanism of the present invention, Fig. 3 is a sectional view of the main parts of this extender, and Fig. 4 is a diagram showing the components arranged in this extender. 3 shows an exploded perspective view of the shock absorbing mechanism. 3...Extender, 31...Operation knob, 32
゜33.34...Gear train, 35.36...
Implant pin, 37.40... Spring, 38... Engagement member, 41... Adjustment screw, 50.52... Stopper.

Claims

[Scope of utility model registration request]

(1) A gear train that manually drives the variable magnification lens system, a pin that is one of the gears in this gear train and is installed eccentrically from the rotation axis of this gear, and one end of which is attached to this pin. and a spring whose other end is latched to a pin implanted in the extension body, and the variable magnification lens system is moved into the photographing optical path by the manual operation and the cooperation of the biasing force of the spring. The extender is configured to be inserted and held in a predetermined position or to be held out of the photographing optical path to perform a magnification change function of the photographing system, and the extender has an engaging portion that engages with a pin implanted in the gear and is rotatable. an engaging member that is pivotally supported by an engaging member; a shaft member having a flange that pivotally supports the engaging member and restricts one axial direction; and a shaft member that urges the engaging member in the axial direction and in the restricting direction; A buffer mechanism in an extender, characterized in that a buffer member comprising a compression spring is provided.

(2) The shock absorbing mechanism in an extender according to claim 1, wherein the shaft member is movable in the axial direction so that the amount of shock absorbing can be adjusted.