JPS5955734U

JPS5955734U - Auto/manual switching device for automatic focusing device

Info

Publication number: JPS5955734U
Application number: JP15138482U
Authority: JP
Inventors: 尾形　誠昭
Original assignee: 株式会社三協精機製作所
Priority date: 1982-10-05
Filing date: 1982-10-05
Publication date: 1984-04-12

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図は本考案に係る自動合焦装置のオート・マニュア
ル切換装置に使用する主要レンズ鏡筒部の分解斜視図。第２図は本考案に係る自動合焦装置のオート・マニュア
ル切換装置に使用するレンズ鏡筒部の組立半断面図。第
３図は本考案に係る主鏡筒の半断面図。第４図は第３図
のＡ−Ａ線に沿う断面図。第５図は第４図において主鏡
筒を矢視Ｂ方向から目視した部分図。第６図は本考案に
係る距離環の半断面図。第７図は本考案に係る切欠係合
部の拡大部分図。第８図は本考案に係る指標環の一部を
破断した平面図。第９図は本考案に係る切換えレバーの
側面図。第１０図はその背面図。第１１図はその上面図
。第１２図はその前面図。第１３図はその後面図。第１
４図は背面方向斜視図。１・・・・・・主鏡筒、２・・・・・・距離環、３・・
・・・・指標環、４・・・・・・フレーム、７・・・・
・・前玉レンズ群（前玉レンズ）、３２・・・・・・ス
ライド溝、３５・・・・・・切欠係合部、３６、　３７
．　３８・・・・、・・係合筒壁、３９・・・・・唄ツ
ク溝、４０・・・・・・スライド孔、４６・・・・・・
切換えレバー、４７・・・・・・ツマミ突起部、４８・
・・・・・突状部、４９・・・・・・係合胴部、５６・
・・・・・切換えスイッチ、５７・・・・・・係合突起
。FIG. 1 is an exploded perspective view of the main lens barrel used in the automatic/manual switching device of the automatic focusing device according to the present invention. FIG. 2 is an assembled half-sectional view of the lens barrel used in the auto-manual switching device of the auto-focusing device according to the present invention. FIG. 3 is a half-sectional view of the main lens barrel according to the present invention. FIG. 4 is a sectional view taken along line A-A in FIG. 3. FIG. 5 is a partial view of the main lens barrel in FIG. 4 as viewed from the direction of arrow B. FIG. FIG. 6 is a half-sectional view of the distance ring according to the present invention. FIG. 7 is an enlarged partial view of the notch engaging portion according to the present invention. FIG. 8 is a partially cutaway plan view of the indicator ring according to the present invention. FIG. 9 is a side view of the switching lever according to the present invention. Figure 10 is its rear view. FIG. 11 is a top view thereof. FIG. 12 is its front view. FIG. 13 is a rear view. 1st
Figure 4 is a perspective view from the back. 1...Primary lens barrel, 2...Distance ring, 3...
... Index ring, 4 ... Frame, 7 ...
...Front lens group (front lens), 32...Slide groove, 35...Notch engaging portion, 36, 37
．． 38... Engagement cylinder wall, 39... Slip groove, 40... Slide hole, 46...
Switching lever, 47...Knob protrusion, 48.
...Protrusion, 49...Engagement body, 56.
...Selector switch, 57...Engagement protrusion.

Claims

[Scope of Claim for Utility Model Registration] An automatic focusing device that performs automatic focusing by driving lenses other than the front lens, comprising: a main lens barrel fixed to a frame; holding the front lens; a distance ring that is rotatably fitted to the main lens barrel and reciprocates in the axial direction of the main lens barrel; and a switching lever that is slidably supported by the main lens barrel and that switches between automatic and manual modes. , formed on the edge of the distance ring over a range from a close focus position to an infinity focus position, and capable of being held on the switching lever to change the rotation range of the distance ring to an infinity focus position. A notch engaging portion that limits rotation to a range from a focus position to a close range focusing position, and a notch engaging portion provided at an infinity focus position portion of the notch engaging portion, and the switching lever is guided and engaged. , a lock groove for locking the rotation of the distance ring, and a lock groove that can be engaged with the switching lever, and the automatic focusing device is turned on as the switching lever enters and retreats from the lock groove.・Auto/manual switching device for automatic focusing device, equipped with a switch to turn it off and .