JPH01152315U - - Google Patents

Info

Publication number
JPH01152315U
JPH01152315U JP4424688U JP4424688U JPH01152315U JP H01152315 U JPH01152315 U JP H01152315U JP 4424688 U JP4424688 U JP 4424688U JP 4424688 U JP4424688 U JP 4424688U JP H01152315 U JPH01152315 U JP H01152315U
Authority
JP
Japan
Prior art keywords
barrel
biasing
load force
zoom
biasing member
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP4424688U
Other languages
Japanese (ja)
Other versions
JPH0749456Y2 (en
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP1988044246U priority Critical patent/JPH0749456Y2/en
Publication of JPH01152315U publication Critical patent/JPH01152315U/ja
Application granted granted Critical
Publication of JPH0749456Y2 publication Critical patent/JPH0749456Y2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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  • Lens Barrels (AREA)

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本考案の第１実施例のワンハンドズー
ムレンズ鏡筒の断面図、第２図及び第３図は負荷
力量調節環の円周溝の展開図、第４図は第１図の
主要部の斜視図である。第５図は本考案の第２実
施例の２操作式ズームレンズ鏡筒の断面図である
。第６図は従来例のズームレンズ鏡筒の断面図で
ある。 主要部分の符号の説明、３…直進筒、４…固定
筒、５…カム筒、７…負荷力量調節環、６…フラ
ンジ部材、１０…波状バネ、１４…係合ピン。 Fig. 1 is a sectional view of the one-handed zoom lens barrel according to the first embodiment of the present invention, Figs. 2 and 3 are developed views of the circumferential groove of the load force adjustment ring, and Fig. 4 is the main part of Fig. 1. FIG. FIG. 5 is a sectional view of a two-operation zoom lens barrel according to a second embodiment of the present invention. FIG. 6 is a sectional view of a conventional zoom lens barrel. Explanation of symbols of main parts, 3... Straight cylinder, 4... Fixed cylinder, 5... Cam cylinder, 7... Load force adjustment ring, 6... Flange member, 10... Wavy spring, 14... Engagement pin.

Claims (1)

【実用新案登録請求の範囲】 (1) 固定筒と、 前記固定筒に直進移動不能に且つ回転可能に嵌
合し、ズーム光学系を駆動する回転筒と、 前記回転筒の回転時に負荷を与える付勢部材と
、 前記固定筒に動作可能に設けられ、前記付勢部
材の負荷力量を調節する為に外部操作可能な調節
操作部材と、 前記付勢部材の負荷力量を段階的に調節するた
めに、前記調節操作部材を段階的に調節案内する
案内部材とを具備し、 前記付勢部材は、前記回転筒の円筒端面に光軸
方向から付勢力が掛かるように、前記回転筒と前
記調節操作部材との間に配置され、前記調節操作
部材が前記案内部材に案内されることによりズー
ム操作の為の負荷力量を調節することを特徴とす
るズームレンズ鏡筒。 (2) 前記調節操作部材は、前記ズーム操作を操
作不能とするロツク位置を有し、該ロツク位置で
は前記回転筒を該操作不能とする負荷力量を前記
付勢部材に発生させることを特徴とする請求項(1
)のズームレンズ鏡筒。[Claims for Utility Model Registration] (1) A fixed barrel; A rotating barrel that is fitted into the fixed barrel so that it cannot move linearly but is rotatable and drives a zoom optical system; A load is applied to the rotating barrel when it rotates. a biasing member; an adjusting operation member that is movably provided on the fixed cylinder and that can be operated externally to adjust the load force of the biasing member; and for adjusting the load force of the biasing member in stages. and a guide member that guides the adjustment operation member in stages, and the biasing member is arranged between the rotary barrel and the adjustment member so that a biasing force is applied to the cylindrical end surface of the rotary barrel from the optical axis direction. 1. A zoom lens barrel, which is disposed between an operating member and an adjusting operating member that is guided by the guide member to adjust a load force for a zoom operation. (2) The adjustment operation member has a lock position that makes the zoom operation inoperable, and in the lock position, the biasing member generates a load force that makes the rotating barrel inoperable. Claim (1)
) zoom lens barrel.
JP1988044246U 1988-04-01 1988-04-01 Zoom lens barrel Expired - Lifetime JPH0749456Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1988044246U JPH0749456Y2 (en) 1988-04-01 1988-04-01 Zoom lens barrel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1988044246U JPH0749456Y2 (en) 1988-04-01 1988-04-01 Zoom lens barrel

Publications (2)

Publication Number Publication Date
JPH01152315U true JPH01152315U (en) 1989-10-20
JPH0749456Y2 JPH0749456Y2 (en) 1995-11-13

Family

ID=31270613

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1988044246U Expired - Lifetime JPH0749456Y2 (en) 1988-04-01 1988-04-01 Zoom lens barrel

Country Status (1)

Country Link
JP (1) JPH0749456Y2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001305409A (en) * 2000-04-19 2001-10-31 Matsushita Electric Ind Co Ltd Lens barrel

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6168900B2 (en) 2013-08-01 2017-07-26 キヤノン株式会社 Optical equipment

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5725310U (en) * 1980-07-21 1982-02-09
JPS6068509U (en) * 1983-10-17 1985-05-15 ミノルタ株式会社 Variable operating weight device
JPS60241006A (en) * 1984-05-15 1985-11-29 Asahi Optical Co Ltd Focus adjusting device for lens

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5725310U (en) * 1980-07-21 1982-02-09
JPS6068509U (en) * 1983-10-17 1985-05-15 ミノルタ株式会社 Variable operating weight device
JPS60241006A (en) * 1984-05-15 1985-11-29 Asahi Optical Co Ltd Focus adjusting device for lens

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001305409A (en) * 2000-04-19 2001-10-31 Matsushita Electric Ind Co Ltd Lens barrel

Also Published As

Publication number Publication date
JPH0749456Y2 (en) 1995-11-13

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