JPS5995307U

JPS5995307U - Binocular zoom adjustment mechanism

Info

Publication number: JPS5995307U
Application number: JP17240483U
Authority: JP
Inventors: 鎌倉　一郎
Original assignee: 鎌倉光機株式会社
Priority date: 1983-11-09
Filing date: 1983-11-09
Publication date: 1984-06-28

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、従来のズーム双眼鏡におけるギヤー機構を示
す平面図、第２図は第１図の正面図、第３図はこの考案
の一実施例の一部分解斜視図、第４図は第３図の概略底
面図、第５図は第３図の要　　　。部断面図を示す。２．２′・・・・・・円筒回動ギヤー、３，４・・・・
・・回動円筒、７．７′・・・・・・伝達ギヤー、訃・
・・・・ギヤー、１２．１２’・・・・・・固定外筒、
１２Ａ・・・・・・回動自在゛に鏡筒内に設けた固定外
筒、１８・・・・・・固定ギヤー、　　−２１・・・・
・・中間ギヤー、２２・・・・・・外筒回動ギヤー、２
３．２４・・・・・・伝達手段としての摩擦部材。Fig. 1 is a plan view showing the gear mechanism of conventional zoom binoculars, Fig. 2 is a front view of Fig. 1, Fig. 3 is a partially exploded perspective view of an embodiment of this invention, and Fig. 4 is a A schematic bottom view of the figure, Figure 5 is the main part of Figure 3. A partial sectional view is shown. 2.2'...Cylindrical rotating gear, 3,4...
・・Rotating cylinder, 7.7′...Transmission gear, end・
... Gear, 12.12' ... Fixed outer cylinder,
12A...Fixed outer tube rotatably provided within the lens barrel, 18...Fixed gear, -21...
...Intermediate gear, 22...Outer cylinder rotating gear, 2
3.24...Friction member as a transmission means.

Claims

[Scope of utility model registration request]

In binoculars in which the zoom magnification is changed by rotating a rotary cylinder via a gear mechanism by operating an operator provided on one lens barrel, the cam screw is moved back and forth, and the zoom magnification is changed. 15, and supports the right support arm 14 rotatably with the shaft pin 16.
A gear 8 is rotatably supported by a gear pin 17 screwed onto the head of the gear 8, and a fixed gear 18, which is the same as the gear 8 fixed to the shaft pin 16, is provided at the bottom of the gear 8, and left and right support arms 13, 14 are mounted. Pivot shaft 19.20 screwed on top
A transmission gear 7.7' is rotatably supported on the right support arm 14, and an intermediate gear 21, which is the same as the transmission gear 7', is rotatably supported on the pivot shaft 20 of the right support arm 14. A fixed outer cylinder 1 is provided in the lens barrel so as to be rotatable relative to the movable cylinder 4.
It is meshed with the outer cylinder rotating gear 22 that is fitted and fixed to 2A,
This outer cylinder rotating gear 22 is the same as the rotating gear 2', is fitted and fixed to the fixed outer cylinder 12A, and is connected to the transmission gear 7'.
A zoom adjustment mechanism for binoculars, characterized in that a friction member 22, 23 is provided as a means for transmitting rotation between the intermediate gear 21 and the rotating gear.