JPH0532837Y2 - - Google Patents

Info

Publication number
JPH0532837Y2
JPH0532837Y2 JP1986080862U JP8086286U JPH0532837Y2 JP H0532837 Y2 JPH0532837 Y2 JP H0532837Y2 JP 1986080862 U JP1986080862 U JP 1986080862U JP 8086286 U JP8086286 U JP 8086286U JP H0532837 Y2 JPH0532837 Y2 JP H0532837Y2
Authority
JP
Japan
Prior art keywords
lens
barrier
section
opening
holding frame
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.)
Expired - Lifetime
Application number
JP1986080862U
Other languages
Japanese (ja)
Other versions
JPS62193229U (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 JP1986080862U priority Critical patent/JPH0532837Y2/ja
Priority to EP92105342A priority patent/EP0495533B1/en
Priority to DE3750569T priority patent/DE3750569T2/en
Priority to DE3751879T priority patent/DE3751879T2/en
Priority to CA000536919A priority patent/CA1312231C/en
Priority to DE8718027U priority patent/DE8718027U1/en
Priority to AT92105341T priority patent/ATE126358T1/en
Priority to AT92105357T priority patent/ATE132276T1/en
Priority to EP92105343A priority patent/EP0498467B1/en
Priority to DE8718028U priority patent/DE8718028U1/en
Priority to AT92105343T priority patent/ATE126902T1/en
Priority to KR1019920700196A priority patent/KR100232479B1/en
Priority to PCT/JP1987/000293 priority patent/WO1987007038A1/en
Priority to EP92105344A priority patent/EP0497383B1/en
Priority to DE3751241T priority patent/DE3751241T2/en
Priority to DE8717978U priority patent/DE8717978U1/en
Priority to AU73955/87A priority patent/AU606343B2/en
Priority to KR1019880700027A priority patent/KR940010590B1/en
Priority to EP92105341A priority patent/EP0495532B1/en
Priority to AT92105344T priority patent/ATE121200T1/en
Priority to AT92105342T priority patent/ATE126363T1/en
Priority to AT87902775T priority patent/ATE112071T1/en
Priority to EP92105357A priority patent/EP0510379B1/en
Priority to KR1019950703637A priority patent/KR0149575B1/en
Priority to DE3751456T priority patent/DE3751456T2/en
Priority to DE8718024U priority patent/DE8718024U1/en
Priority to DE3751657T priority patent/DE3751657T2/en
Priority to SG1996004214A priority patent/SG49701A1/en
Priority to EP93110717A priority patent/EP0569051B1/en
Priority to DE3751481T priority patent/DE3751481T2/en
Priority to DE3751455T priority patent/DE3751455T2/en
Priority to DE8718017U priority patent/DE8718017U1/en
Priority to DE8718025U priority patent/DE8718025U1/en
Priority to AT93110717T priority patent/ATE141693T1/en
Priority to EP87902775A priority patent/EP0266435B1/en
Publication of JPS62193229U publication Critical patent/JPS62193229U/ja
Priority to US90/002261A priority patent/US4944030B1/en
Priority to KR1019880700027A priority patent/KR0165530B1/en
Priority to US07/480,217 priority patent/US5142315A/en
Priority to US07/480,214 priority patent/US5157429A/en
Priority to US07/486,914 priority patent/US5214462A/en
Priority to US07486915 priority patent/US5012273B1/en
Priority to US07/480,069 priority patent/US5264885A/en
Priority to US07/480,213 priority patent/US5150145A/en
Priority to US07/480,215 priority patent/US5016032A/en
Priority to AU57608/90A priority patent/AU630973B2/en
Priority to AU57611/90A priority patent/AU630975B2/en
Priority to AU57612/90A priority patent/AU630976B2/en
Priority to AU57610/90A priority patent/AU630974B2/en
Priority to KR92700195A priority patent/KR0131679B1/en
Priority to CA000616423A priority patent/CA1325547C/en
Priority to CA000616417A priority patent/CA1331925C/en
Priority to US07/924,524 priority patent/US5276475A/en
Priority to US07/924,631 priority patent/US5321462A/en
Priority to US08/071,107 priority patent/US5424796A/en
Application granted granted Critical
Publication of JPH0532837Y2 publication Critical patent/JPH0532837Y2/ja
Priority to US08/222,697 priority patent/US5465131A/en
Priority to US08/463,259 priority patent/US5583596A/en
Priority to US08/462,687 priority patent/US5673099A/en
Priority to KR1019950703638A priority patent/KR960702910A/en
Priority to US08/646,114 priority patent/US5713051A/en
Priority to US08/838,016 priority patent/US5966551A/en
Priority to HK98100938A priority patent/HK1001900A1/en
Priority to HK98100942A priority patent/HK1001904A1/en
Priority to HK98100939A priority patent/HK1001901A1/en
Priority to HK98100940A priority patent/HK1001902A1/en
Priority to HK98100936A priority patent/HK1001905A1/en
Priority to HK98100941A priority patent/HK1001903A1/en
Priority to HK98100937A priority patent/HK1001906A1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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  • Structure And Mechanism Of Cameras (AREA)

Description

【考案の詳細な説明】 「技術分野」 本考案はカメラの撮影レンズ前方を開閉するバ
リヤ機構に関する。[Detailed Description of the Invention] "Technical Field" The present invention relates to a barrier mechanism that opens and closes the front of a photographic lens of a camera.

「従来技術およびその問題点」 カメラの撮影レンズは、古くは着脱式のレンズ
キヤツプによつて保護されていたが、最近は、特
にレンズシヤツタ式のカメラにおいて、カメラ自
体にレンズキヤツプ（バリヤ）を設けることが一
般化している。このバリヤ機構は従来各種の構造
のものが知られているが、従来品は基本的には、
撮影れンズの前方に、該撮影レンズとは機械的に
無関係なバリヤを設け、このバリヤを、ばね力等
によつて開、閉いずれかの方向に付勢し、この付
勢力に抗して操作者が閉または開動作を行なうも
のである。しかし自動化が極限まで追求されてい
るレンズシヤツタ式カメラにおいて、手動開閉操
作を要求されるバリヤは、改良の余地がある。"Prior Art and its Problems" In the past, the camera lens was protected by a removable lens cap, but recently, especially in lens shutter type cameras, a lens cap (barrier) is installed on the camera itself. This is becoming common. Various structures of this barrier mechanism are known, but the conventional ones basically have the following structure:
A barrier mechanically unrelated to the photographic lens is provided in front of the photographic lens, and this barrier is biased in either the open or close direction by a spring force or the like, and the barrier is resisted against this biasing force. The operator performs the closing or opening operation. However, in lens-shutter cameras, where automation is being pursued to the utmost, there is room for improvement in barriers that require manual opening and closing operations.

「考案の目的」 本考案は、このような問題意識から、モータ駆
動されるレンズ駆動リングを駆動力として、自動
開閉するバリヤ機構を得ることを目的とする。さ
らに本考案は、非使用状態における寸法を小さく
するため、沈胴式としたレンズにおいて、その沈
胴機構を利用して、バリヤを自動的に開閉するこ
とができるバリヤ機構を得ることを目的とする。
また本考案は、経年変化がなく、温度、湿度等の
環境の変化によつても高い動作信頼性を示すバリ
ヤ機構を得ることも目的とする。``Purpose of the invention'' With this problem in mind, the object of the present invention is to obtain a barrier mechanism that automatically opens and closes using a motor-driven lens drive ring as the driving force. A further object of the present invention is to obtain a barrier mechanism that can automatically open and close the barrier by utilizing the retractable mechanism of a collapsible lens in order to reduce its size when not in use.
Another object of the present invention is to obtain a barrier mechanism that does not change over time and exhibits high operational reliability even under environmental changes such as temperature and humidity.

「考案の概要」 本考案は、撮影レンズを保持した保持枠を、最
後端の撮影可能位置からさらに後方の収納位置に
直進移動可能として、いわゆる沈胴式となすとと
もに、この撮影レンズ保持枠の外周部に、モータ
によつて回転駆動され、回動に伴ないこの撮影レ
ンズ保持枠を最後端撮影可能位置と収納位置との
間に移動させるレンズ駆動リングを設け、さらに
撮影レンズ保持枠の前端面に、撮影用開口を開閉
するバリヤ板部と駆動腕部とを有する一対のバリ
ヤを回動可能に設け、この一対のバリヤのそれぞ
れの駆動腕部の間に、バリヤ板部が撮影用開口を
開く方向に該バリヤを回動付勢する単一の線ばね
部材を作用させ、さらにこの一対のバリヤを、レ
ンズ駆動リングの上記レンズ沈胴区間に続く開閉
区間の回動動作により、線ばね部材の付勢力に抗
して閉じる連動閉止手段を設けたことを特徴とし
ている。``Summary of the invention'' The present invention is a so-called collapsible type in which the holding frame that holds the photographic lens can be moved straight from the rearmost photographic position to the storage position further back, and the outer circumference of the photographic lens holding frame is is provided with a lens drive ring which is rotationally driven by a motor and which moves the photographic lens holding frame between the rearmost photographable position and the storage position as it rotates, and further includes A pair of barriers having a barrier plate portion and a drive arm portion for opening and closing the photographing aperture are rotatably provided, and the barrier plate portion opens and closes the photographing aperture between the respective drive arms of the pair of barriers. A single wire spring member is actuated to rotationally urge the barrier in the opening direction, and the pair of barriers is further rotated by the wire spring member by the rotational movement of the opening/closing section following the lens collapsing section of the lens drive ring. It is characterized by providing an interlocking closing means that closes against biasing force.

「考案の実施例」 以下図示実施例について本考案を説明する。こ
の実施例は、ズームレンズを有するレンズシヤツ
タカメラに本考案を適用したものである。まず第
３図ないし第８図について、本考案のバリヤ機構
を有するズームレンズの鏡筒ブロツク１の周辺を
説明する。鏡筒ブロツク１は、測距装置（AF装
置）の発光部３と受光部４、ズーミング用のズー
ムモータ５とともに、カメラボデイ側の台板６に
支持されている。``Embodiments of the invention'' The invention will be described below with reference to illustrated embodiments. In this embodiment, the present invention is applied to a lens shutter camera having a zoom lens. First, with reference to FIGS. 3 to 8, the surroundings of the lens barrel block 1 of the zoom lens having the barrier mechanism of the present invention will be described. The lens barrel block 1 is supported by a base plate 6 on the camera body side, together with a light emitting section 3 and a light receiving section 4 of a distance measuring device (AF device), and a zoom motor 5 for zooming.

すなわち台板６は、光軸と直角をなす鏡筒支持
板部６ａと、この鏡筒支持板部６ａの上端を直角
に曲折した水平支持板部６ｂとを有していて、鏡
筒支持板部６ａに鏡筒ブロツク１が支持されてい
る。また水平支持板部６ｂには、鏡筒ブロツク１
の上部中央に、ズームモータ５が固定され、この
ズームモータ５の両側に、発光部３と受光部４が
位置している。図示しないフアインダブロツク
は、この水平支持板部６ｂの正面右方に固定され
る。 That is, the base plate 6 has a lens barrel support plate part 6a that is perpendicular to the optical axis, and a horizontal support plate part 6b that is formed by bending the upper end of this lens barrel support plate part 6a at a right angle. The lens barrel block 1 is supported by the portion 6a. Further, the horizontal support plate portion 6b includes the lens barrel block 1.
A zoom motor 5 is fixed at the upper center of the screen, and a light emitting section 3 and a light receiving section 4 are located on both sides of the zoom motor 5. A finder block (not shown) is fixed to the front right side of this horizontal support plate portion 6b.

台板６の鏡筒支持板部６ａには、固定ねじ１０
を介して鏡筒ブロツク１の後固定板１１が固定さ
れている。この後固定板１１には光軸と平行でこ
れの周囲に位置する４本のガイドロツド１２が固
定されていて、このガイドロツド１２の先端に前
固定板１３が固定されている。以上が鏡筒ブロツ
ク１の主たる固定要素である。 A fixing screw 10 is attached to the lens barrel support plate portion 6a of the base plate 6.
A rear fixing plate 11 of the lens barrel block 1 is fixed thereto. Four guide rods 12 are fixed to the rear fixing plate 11 and are located parallel to and around the optical axis, and a front fixing plate 13 is fixed to the tips of the guide rods 12. The above are the main fixing elements of the lens barrel block 1.

後固定板１１と前固定板１３の間には、カムリ
ング（レンズ駆動リング）が回転自在に支持され
ており、このカムリング１４の外周に、ピニオン
７と直接またはギヤ列を介して噛み合うギヤ１５
が固定ねじ１５ａ（第４図）で固定されている。
このギヤ１５は、カムリング１４の回動範囲をカ
バーするセクタギヤでよい。カムリング１４に
は、前群用、後群用のズーミングカム溝２０，２
１が切られている。第５図はズーミングカム溝２
０，２１の展開図で、後群用のズーミングカム溝
２１は広角端固定区間２１ａ、変倍区間２１ｂ、
望遠端固定区間２１ｃを有している。これに対し
前群用のズーミングカム溝２０は、バリヤブロツ
ク３０の開閉区間２０ａ、レンズ沈胴区間２０
ｂ、広角端固定区間２０ｃ、変倍区間２０ｄ、望
遠端固定区間２０ｅ、マクロ繰出区間２０ｆ、お
よびマクロ端固定区間２０ｇを有している。これ
ら各区間の回動角度は、ズーミングカム溝２０の
開閉区間２０ａ、レンズ沈胴区間２０ｂ、および
広角端固定区間２０ｃの合計角度θ１が、ズーミ
ングカム溝２１の広角端固定区間２１ａの角度θ
１と同一であり、変倍区間２０ｄと変倍区間２１
ｂの角度θ２が同一であり、望遠端固定区間２０
ｅ、マクロ繰出区間２０ｆ、およびマクロ固定区
間２０ｇの合計角度θ３が望遠端固定区間２１ｃ
の角度θ３と同一である。 A cam ring (lens driving ring) is rotatably supported between the rear fixed plate 11 and the front fixed plate 13, and a gear 15 that meshes with the pinion 7 directly or through a gear train is attached to the outer periphery of the cam ring 14.
is fixed with a fixing screw 15a (FIG. 4).
This gear 15 may be a sector gear that covers the rotation range of the cam ring 14. The cam ring 14 has zooming cam grooves 20, 2 for the front group and the rear group.
1 is cut off. Figure 5 shows zooming cam groove 2.
0 and 21, the zooming cam groove 21 for the rear group has a wide-angle end fixed section 21a, a variable magnification section 21b,
It has a telephoto end fixed section 21c. On the other hand, the zooming cam groove 20 for the front group includes an opening/closing section 20a of the barrier block 30 and a lens collapsing section 20a.
b, a wide-angle end fixed section 20c, a variable power section 20d, a telephoto end fixed section 20e, a macro feed section 20f, and a macro end fixed section 20g. The rotation angle of each of these sections is such that the total angle θ1 of the opening/closing section 20a of the zooming cam groove 20, the lens collapsing section 20b, and the wide-angle end fixing section 20c is the angle θ of the wide-angle end fixing section 21a of the zooming cam groove 21.
1, and the variable magnification section 20d and the variable magnification section 21
The angle θ2 of b is the same, and the telephoto end fixed section 20
e, the total angle θ3 of the macro feeding section 20f and the macro fixed section 20g is the telephoto end fixed section 21c.
is the same as the angle θ3.

このズーミングカム溝２０およびズーミングカ
ム溝２１には、ガイドロツド１２に移動自在に嵌
めた前枠１６のローラ１７および後群枠１８のロ
ーラ１９が嵌まる。前枠１６には、固定ねじ２２
ａを介して前群レンズ保持枠（撮影レンズ保持
枠）２２が固定され、さらにシヤツタブロツク２
３が固定されている。前群レンズＬ１を保持した
前群レンズ枠２４は、このシヤツタブロツク２３
とヘリコイド２５によつて螺合しており、またシ
ヤツタブロツク２３のレンズ繰出レバー２３ａと
係合する腕２４ａを有している。したがつてレン
ズ繰出レバー２３ａが円周方向に回動し、これに
伴ない前群レンズ枠２４が回動すると、前群レン
ズ枠２４はヘリコイド２５に従つて光軸方向に移
動する。後群レンズＬ２は、後群枠１８に直接固
定されている。 A roller 17 of the front frame 16 and a roller 19 of the rear group frame 18, which are movably fitted to the guide rod 12, are fitted into the zooming cam groove 20 and the zooming cam groove 21. A fixing screw 22 is attached to the front frame 16.
A front group lens holding frame (taking lens holding frame) 22 is fixed via a, and the shutter block 2
3 is fixed. The front group lens frame 24 holding the front group lens L1 is attached to this shutter block 23.
It is screwed together by a helicoid 25 and has an arm 24a that engages with a lens extension lever 23a of the shutter block 23. Therefore, when the lens advancing lever 23a rotates in the circumferential direction and the front group lens frame 24 rotates accordingly, the front group lens frame 24 moves in the optical axis direction following the helicoid 25. The rear group lens L2 is directly fixed to the rear group frame 18.

シヤツタブロツク２３自体は周知のものであ
り、内蔵したパルスモータによつて、測距装置か
らの測距信号に応じた角度だけレンズ繰出レバー
２３ａを回動させ、さらに閉じられているシヤツ
タ（セクタ）２３ｂを所定時間開いた後再び閉じ
てから、レンズ繰出レバー２３ａを元の位置に復
帰させる。 The shutter block 23 itself is well known, and uses a built-in pulse motor to rotate the lens extension lever 23a by an angle corresponding to the distance measurement signal from the distance measurement device, and furthermore, the shutter (sector) 23b is closed. After being opened for a predetermined time and then closed again, the lens advancing lever 23a is returned to its original position.

以上の構成から明らかなように、ズームモータ
５を介してカムリング１４を回動させると、ズー
ミングカム溝２０，２１の関係によつて、前群レ
ンズ保持枠２２（前枠１６）および後群枠１８が
光軸方向に移動してズーミングがなされる。そし
て前群レンズ保持枠２２はさらに、ズーミングカ
ム溝２０のレンズ沈胴区間２０ｂの回動によつ
て、最後端の撮影可能位置からさらに後方の沈胴
位置に直線変位し、非使用状態での光軸方向長を
さらに短縮するようにしている。 As is clear from the above configuration, when the cam ring 14 is rotated via the zoom motor 5, the relationship between the zooming cam grooves 20 and 21 causes the front group lens holding frame 22 (front frame 16) and the rear group frame to rotate. 18 moves in the optical axis direction to perform zooming. The front group lens holding frame 22 is further linearly displaced from the rearmost shooting position to a further rear collapsible position by the rotation of the lens collapsible section 20b of the zooming cam groove 20, and the optical axis is adjusted when the lens is not in use. The direction length is further shortened.

本考案のバリヤ機構３０は、ズーミングカム溝
２０のレンズ沈胴区間２０ｂに続く開閉区間２０
ａにおけるカムリング１４の回動によつて、自動
的に、前群レンズ保持枠２２の前端面の撮影用開
口２を開閉するもので、以下その構造を第１図な
いし第３図について説明する。 The barrier mechanism 30 of the present invention includes an opening/closing section 20 following the lens collapsing section 20b of the zooming cam groove 20.
The rotation of the cam ring 14 at point a automatically opens and closes the photographing aperture 2 on the front end surface of the front group lens holding frame 22, and its structure will be explained below with reference to FIGS. 1 to 3.

このバリヤ機構３０は、前群レンズ保持枠２２
の撮影用開口２の左右略対称位置に、ピン３２で
枢着した一対のバリヤ３１，３１によつて、撮影
用開口２を開閉するものである。この一対のバリ
ヤ３１，３１は対称形に向き合つていて、光軸上
に突出するバリヤ板部３１ａと、ピン３２に関し
このバリヤ板部３１ａの反対側に延びる駆動腕部
３１ｂを有している。 This barrier mechanism 30 is connected to the front group lens holding frame 22.
The photographing aperture 2 is opened and closed by a pair of barriers 31, 31 which are pivotally connected with pins 32 at substantially symmetrical positions on the left and right sides of the photographic aperture 2. The pair of barriers 31, 31 are symmetrically opposed to each other and have a barrier plate portion 31a that projects on the optical axis and a drive arm portion 31b that extends on the opposite side of the barrier plate portion 31a with respect to the pin 32. There is.

この駆動腕部３１ｂには、作用ピン３３が植設
されており、この一対の作用ピン３３の外側に、
単一の線ばね部材３４の弾性脚部３４ａが係合し
て、バリヤ板部３１ａが撮影用開口２を開く方向
に該バリヤ３１を回動付勢している。したがつて
バリヤ３１は、これに外力が加わらない状態で
は、常に撮影用開口２を開く。 A working pin 33 is implanted in this drive arm portion 31b, and on the outside of this pair of working pins 33,
The elastic legs 34a of the single wire spring member 34 are engaged to bias the barrier 31 to rotate in the direction in which the barrier plate 31a opens the photographing aperture 2. Therefore, the barrier 31 always opens the photographing aperture 2 when no external force is applied thereto.

線ばね部材３４は、金属材料からなるもので、
その中央のＵ字状部３４ｂを、前群レンズ保持枠
２２に植設した支持ピン３５に係止している。こ
の線ばね部材３４は、温度や湿度等の環境変化に
よつて、ばね力が変化することがなく、また経年
変化も生じない。よつて常に安定した力でバリヤ
３１に閉方向の力を与えることができる。 The wire spring member 34 is made of a metal material,
The central U-shaped portion 34b is locked to a support pin 35 implanted in the front group lens holding frame 22. The spring force of this wire spring member 34 does not change due to environmental changes such as temperature and humidity, and does not change over time. Therefore, a force in the closing direction can always be applied to the barrier 31 with a stable force.

駆動腕部３１ｂの作用ピン３３の内側には、そ
れぞれ、線ばね部材３４の力に抗してバリヤ３１
を開くための左右一対の駆動アーム３６の駆動腕
３６ａが係合している。この駆動アーム３６は、
ピン３７によつて前群レンズ保持枠２２に枢着さ
れていて、ピン３７に関し駆動腕３６ａと反対側
に延びる作用腕３６ｂが、前群レンズ保持枠２２
に半径方向に移動可能に嵌めた開閉ピン３８のフ
ランジ部３８ａと係合している。この開閉ピン３
８の頭部は、前群レンズ保持枠２２の連動孔３９
を介して、前固定板１３にピン４０で枢着した連
動レバー４１の自由端部と係合している。開閉ピ
ン３８は、外力が加わらない状態では、線ばね部
材３４のばね力により、半径方向の突出端に位置
する。 Barriers 31 are provided inside the working pins 33 of the drive arm portions 31b to resist the force of the wire spring members 34, respectively.
Drive arms 36a of a pair of left and right drive arms 36 for opening are engaged. This drive arm 36 is
An operating arm 36b, which is pivotally connected to the front group lens holding frame 22 by a pin 37 and extends on the opposite side of the drive arm 36a with respect to the pin 37, is attached to the front group lens holding frame 22.
It engages with a flange portion 38a of an opening/closing pin 38 fitted movably in the radial direction. This opening/closing pin 3
The head of No. 8 is connected to the interlocking hole 39 of the front group lens holding frame 22.
It engages with the free end of an interlocking lever 41 which is pivotally connected to the front fixing plate 13 via a pin 40. When no external force is applied to the opening/closing pin 38, the spring force of the wire spring member 34 positions the opening/closing pin 38 at the protruding end in the radial direction.

そして上記カムリング１４の内壁には、該カム
リング１４がズーミングカム溝２０の開閉区間２
０ａにおいて回動するとき、連動レバー４１の外
側を押して開閉ピン３８を内方に押圧する閉塞突
起４２が形成されている。 The cam ring 14 has an opening/closing section 2 of the zooming cam groove 20 on the inner wall of the cam ring 14.
A closing protrusion 42 is formed that pushes the outside of the interlocking lever 41 and pushes the opening/closing pin 38 inward when rotating at 0a.

上記構成の本バリヤ機構はしたがつて、閉塞突
起４２が連動レバー４１と係合していないときに
は、バリヤ３１が撮影用開口２を開く。つまりカ
ムリング１４がそのズーミングカム溝２０の開閉
区間２０ａ以外に、ローラ１７を位置させている
撮影可能状態では、バリヤ３１が開いている。こ
れに対し、ロツクスイツチ（図示せず）によつて
ズームモータ５を駆動してカムリング１４を回転
させ、ローラ１７をズーミングカム溝２０のレン
ズ沈胴区間２０ｂから開閉区間２０ａに係合させ
ると、閉塞突起４２が連動レバー４１を介して開
閉ピン３８を半径方向内方に押すため、駆動アー
ム３６および作用ピン３３を介してバリヤ３１が
回動し、そのバリヤ板部３１ａを光路上に位置さ
せる。すなわち撮影用開口２を閉塞し、前群レン
ズＬ１を保護する。つまり前群レンズ保持枠２２
は、撮影可能な最後端位置から沈胴した後、バリ
ヤ３１を閉じることとなる。 Accordingly, in the present barrier mechanism configured as described above, when the closing protrusion 42 is not engaged with the interlocking lever 41, the barrier 31 opens the photographing opening 2. That is, when the cam ring 14 is in the photographable state in which the roller 17 is positioned outside the opening/closing section 20a of the zooming cam groove 20, the barrier 31 is open. On the other hand, when the zoom motor 5 is driven by a lock switch (not shown) to rotate the cam ring 14 and the roller 17 is engaged from the lens collapsing section 20b to the opening/closing section 20a of the zooming cam groove 20, the closing protrusion 42 pushes the opening/closing pin 38 inward in the radial direction via the interlocking lever 41, the barrier 31 rotates via the drive arm 36 and the working pin 33, and positions the barrier plate portion 31a on the optical path. That is, the photographing aperture 2 is closed and the front group lens L1 is protected. In other words, the front group lens holding frame 22
After collapsing the barrel from the rearmost position where photography is possible, the barrier 31 is closed.

撮影時にはズームモータ５を逆転させて、カム
リング１４のズーミングカム溝２０を開閉区間２
０ａからレンズ沈胴区間２０ｂ側に回動させれ
ば、バリヤ３１が開いた後、前群レンズＬ１は撮
影可能位置に移動する。 When shooting, the zoom motor 5 is reversed to open and close the zooming cam groove 20 of the cam ring 14.
When the front lens group L1 is rotated from 0a toward the lens collapsing section 20b, the barrier 31 opens, and then the front lens group L1 moves to the photographable position.

「考案の効果」 以上のように本考案の沈胴式レンズシヤツタカ
メラのバリヤ機構は、撮影レンズを沈胴させるレ
ンズ駆動リングに、沈胴区間に続いてバリヤ開閉
区間を設け、レンズ駆動リングの一連の回動によ
つて、沈胴とバリヤ開閉とを行なわせるようにし
たから、バリヤ開閉を自動的に行ない得るととも
に、収納寸法を小さくすることができる。よつて
レンズシヤツタカメラの小型化およびフールプル
ーフ化を一層進めることができる。さらに本考案
は、一対のバリヤに開放方向の付勢力を与える付
勢手段が、単一の線ばね部材からなつているた
め、バリヤを開く力が温度、湿度等の環境によつ
て左右されることがなく、また経年変化も生じな
い。このため動作信頼性の高いバリヤ機構が得ら
れる。"Effects of the Invention" As described above, the barrier mechanism of the retractable lens shutter camera of the present invention has a barrier opening/closing section following the collapsible section in the lens drive ring that retracts the photographic lens, and a series of the lens drive ring's barrier opening/closing sections. Since the barrel is collapsed and the barrier is opened and closed by rotation, the barrier can be opened and closed automatically and the storage size can be reduced. Therefore, it is possible to further downsize and foolproof the lens shutter camera. Furthermore, in the present invention, the biasing means that applies biasing force in the opening direction to the pair of barriers is composed of a single wire spring member, so the force to open the barriers is influenced by the environment such as temperature and humidity. There is no problem, and no change occurs over time. Therefore, a barrier mechanism with high operational reliability is obtained.

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

第１図は本発明による沈胴式レンズシヤツタカ
メラのバリヤ機構の実施例を示すバリヤ開放状態
の正面図、第２図は同バリヤ閉塞状態の正面図、
第３図は本考案のバリヤ機構を組込んだズームレ
ンズ鏡筒の分解斜視図、第４図は同縦断面図、第
５図はカムリング（レンズ駆動リング）の展開
図、第６図はカムリング部分の正面図、第７図は
第６図の−線に沿う断面図、第８図は第６図
の平面図である。 １……ズームレンズ鏡筒、２……撮影用開口、
５……ズームモータ、６……台板、１４……カム
リング（レンズ駆動リング）、１５……ギヤ、２
０，２１……ズーミングカム溝、２０ａ……開閉
区間、２０ｂ……レンズ沈胴区間、２２……前群
レンズ保持枠（撮影レンズ保持枠）、３０……バ
リヤ機構、３１……バリヤ、３４……線ばね部
材、３６……駆動アーム、３８……開閉ピン、４
１……連動レバー、４２……閉塞突起。 FIG. 1 is a front view of an embodiment of the barrier mechanism of a collapsible lens shutter camera according to the present invention, with the barrier open, and FIG. 2 is a front view of the same barrier closed,
Figure 3 is an exploded perspective view of a zoom lens barrel incorporating the barrier mechanism of the present invention, Figure 4 is a vertical sectional view of the same, Figure 5 is an exploded view of the cam ring (lens drive ring), and Figure 6 is the cam ring. 7 is a sectional view taken along the line - in FIG. 6, and FIG. 8 is a plan view of FIG. 6. 1...Zoom lens barrel, 2...Photographing aperture,
5...zoom motor, 6...base plate, 14...cam ring (lens drive ring), 15...gear, 2
0, 21... Zooming cam groove, 20a... Opening/closing section, 20b... Lens collapsing section, 22... Front group lens holding frame (taking lens holding frame), 30... Barrier mechanism, 31... Barrier, 34... ... wire spring member, 36 ... drive arm, 38 ... opening/closing pin, 4
1... Interlocking lever, 42... Obstruction protrusion.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 前端面に撮影用開口を有する撮影レンズ保持枠
を、最後端撮影可能位置よりさらに後方の収納位
置に直進移動可能に支持し、この撮影レンズ保持
枠の外周部に、モータによつて回転駆動され、レ
ンズ沈胴区間の回動に伴ないこの撮影レンズ保持
枠を最後端撮影可能位置と収納位置との間に移動
させるレンズ駆動リングを設け、上記撮影レンズ
保持枠の前端部に、上記撮影用開口を開閉するバ
リヤ板部と駆動腕部とを有する一対のバリヤを回
動可能に設け、この一対のバリヤのそれぞれの駆
動腕部の間に、バリヤ板部が撮影用開口を開く方
向に該バリヤを回動付勢する単一の線ばね部材を
作用させ、さらにこの一対のバリヤを、レンズ駆
動リングの上記レンズ沈胴区間に続く開閉区間の
回動動作により、上記線ばね部材の付勢力に抗し
て閉じる連動閉止手段を設けたことを特徴とする
沈胴式レンズシヤツタカメラのバリヤ機構。 A photographing lens holding frame having a photographing aperture on the front end face is supported so as to be movable in a straight line from the rearmost position where photography is possible to a storage position further rearward, and a frame is provided on the outer periphery of the photographing lens holding frame, which is rotatably driven by a motor. A lens drive ring is provided to move the photographic lens holding frame between the rearmost photographable position and the storage position as the lens collapsible section rotates, and the photographing opening is provided at the front end of the photographic lens holding frame. A pair of barriers having a barrier plate part and a drive arm part that open and close are rotatably provided, and between each drive arm part of the pair of barriers, the barrier plate part moves the barrier plate part in the direction of opening the photographing aperture. A single wire spring member is actuated to rotationally bias the pair of barriers, and the pair of barriers is resisted against the biasing force of the wire spring member by the rotational movement of the opening/closing section of the lens drive ring following the lens collapsing section. A barrier mechanism for a collapsible lens shutter camera, characterized in that it is provided with an interlocking closing means that closes the camera.
JP1986080862U 1986-05-12 1986-05-28 Expired - Lifetime JPH0532837Y2 (en)

Priority Applications (67)

Application Number Priority Date Filing Date Title
JP1986080862U JPH0532837Y2 (en) 1986-05-28 1986-05-28
EP92105342A EP0495533B1 (en) 1986-05-12 1987-05-12 Guide mechanism of a flexible printed circuit board for a lens shutter camera
DE3750569T DE3750569T2 (en) 1986-05-12 1987-05-12 INTERMEDIATE LENS CAMERA WITH ZOOM LENS.
DE3751879T DE3751879T2 (en) 1986-05-12 1987-05-12 Intermediate lens shutter camera with zoom lens
CA000536919A CA1312231C (en) 1986-05-12 1987-05-12 Lens shutter camera including zoom lens
DE8718027U DE8718027U1 (en) 1986-05-12 1987-05-12 CENTRAL LOCKING CAMERA WITH VARIO OPTICS
AT92105341T ATE126358T1 (en) 1986-05-12 1987-05-12 PHOTOGRAPHIC-OPTICAL SYSTEM AND CAMERA COMPRISING SUCH A SYSTEM.
AT92105357T ATE132276T1 (en) 1986-05-12 1987-05-12 OPENING AND CLOSING MECHANISM FOR A LENS
EP92105343A EP0498467B1 (en) 1986-05-12 1987-05-12 Flexible printed circuit with anti-reflection device for a lens shutter camera
DE8718028U DE8718028U1 (en) 1986-05-12 1987-05-12 CENTRAL LOCKING CAMERA WITH VARIO LENS
AT92105343T ATE126902T1 (en) 1986-05-12 1987-05-12 FLEXIBLE PRINTED CIRCUIT WITH ANTI-REFLECTION DEVICE FOR A CENTRAL SHUTTER CAMERA.
KR1019920700196A KR100232479B1 (en) 1986-05-12 1987-05-12 Acceptor structure of lens barrel
PCT/JP1987/000293 WO1987007038A1 (en) 1986-05-12 1987-05-12 Lens shutter camera including zoom lens
EP92105344A EP0497383B1 (en) 1986-05-12 1987-05-12 Photographic optical system and camera including such a system
DE3751241T DE3751241T2 (en) 1986-05-12 1987-05-12 Photographic optical system and camera with such a system.
DE8717978U DE8717978U1 (en) 1986-05-12 1987-05-12 Camera with zoom lens and zoom finder
AU73955/87A AU606343B2 (en) 1986-05-12 1987-05-12 Lens shutter camera
KR1019880700027A KR940010590B1 (en) 1986-05-12 1987-05-12 Lens shutter camera including zoom-lens
EP92105341A EP0495532B1 (en) 1986-05-12 1987-05-12 Photographic optical system and camera including such a system
AT92105344T ATE121200T1 (en) 1986-05-12 1987-05-12 PHOTOGRAPHIC OPTICAL SYSTEM AND CAMERA COMPRISING SUCH SYSTEM.
AT92105342T ATE126363T1 (en) 1986-05-12 1987-05-12 GUIDING MECHANISM FOR A FLEXIBLE PRINTED CIRCUIT BOARD IN AN INTERMEDIATE LENS SHUTTER CAMERA.
AT87902775T ATE112071T1 (en) 1986-05-12 1987-05-12 INTER-LENS SHUTTER CAMERA WITH ZOOM LENS.
EP92105357A EP0510379B1 (en) 1986-05-12 1987-05-12 Lens cap opening and closing mechanism
KR1019950703637A KR0149575B1 (en) 1986-05-12 1987-05-12 Zoom camera
DE3751456T DE3751456T2 (en) 1986-05-12 1987-05-12 Guide mechanism for a flexible printed circuit board in an inter-lens shutter camera.
DE8718024U DE8718024U1 (en) 1986-05-12 1987-05-12 CENTRAL LOCKING CAMERA WITH VARIO LENS
DE3751657T DE3751657T2 (en) 1986-05-12 1987-05-12 Opening and closing mechanism for a lens
SG1996004214A SG49701A1 (en) 1986-05-12 1987-05-12 Lens shutter camera including a zoom lens system
EP93110717A EP0569051B1 (en) 1986-05-12 1987-05-12 Lens shutter camera including a zoom lens system
DE3751481T DE3751481T2 (en) 1986-05-12 1987-05-12 Flexible printed circuit with anti-reflection device for a central locking camera.
DE3751455T DE3751455T2 (en) 1986-05-12 1987-05-12 Photographic-optical system and camera with such a system.
DE8718017U DE8718017U1 (en) 1986-05-12 1987-05-12 CENTRAL LOCKING CAMERA WITH VARIO LENS
DE8718025U DE8718025U1 (en) 1986-05-12 1987-05-12 CENTRAL LOCKING CAMERA WITH VARIO VIEWFINDER
AT93110717T ATE141693T1 (en) 1986-05-12 1987-05-12 INTERMEDIATE LENS CAMERA WITH ZOOMO LENS
EP87902775A EP0266435B1 (en) 1986-05-12 1987-05-12 Lens shutter camera including zoom lens
US90/002261A US4944030B1 (en) 1986-05-12 1988-01-07 Lens shutter camera including zoom lens
KR1019880700027A KR0165530B1 (en) 1986-05-12 1988-01-12 Lens shutter camera including zoom-lens
US07/480,217 US5142315A (en) 1986-05-12 1990-02-14 Lens shutter type of camera including zoom lens
US07/480,214 US5157429A (en) 1986-05-12 1990-02-14 Lens shutter camera including zoom lens
US07/486,914 US5214462A (en) 1986-05-12 1990-02-14 Lens shutter camera including zoom lens and barrier mechanisms
US07486915 US5012273B1 (en) 1986-05-12 1990-02-14 Lens shutter type of camera including zoom lens
US07/480,069 US5264885A (en) 1986-05-12 1990-02-14 Lens shutter camera including zoom lens
US07/480,213 US5150145A (en) 1986-05-12 1990-02-14 Lens shutter camera including zoom lens
US07/480,215 US5016032A (en) 1986-05-12 1990-02-14 Lens shutter camera including zoom lens
AU57608/90A AU630973B2 (en) 1986-05-12 1990-06-19 Lens shutter camera including zoom lens
AU57611/90A AU630975B2 (en) 1986-05-12 1990-06-19 Lens shutter camera including zoom lens
AU57612/90A AU630976B2 (en) 1986-05-12 1990-06-19 Lens shutter camera including zoom lens
AU57610/90A AU630974B2 (en) 1986-05-12 1990-06-19 Lens shutter camera including zoom lens
KR92700195A KR0131679B1 (en) 1986-05-12 1992-01-28 Lens cap opening and shutting device
CA000616423A CA1325547C (en) 1986-05-28 1992-06-25 Lens shutter camera including zoom lens
CA000616417A CA1331925C (en) 1986-05-28 1992-06-25 Lens shutter camera including zoom lens
US07/924,524 US5276475A (en) 1986-05-12 1992-08-04 Lens shutter camera including zoom lens
US07/924,631 US5321462A (en) 1986-05-12 1992-08-04 Lens shutter camera including zoom lens
US08/071,107 US5424796A (en) 1986-05-12 1993-06-04 Lens shutter camera including zoom lens
US08/222,697 US5465131A (en) 1986-05-12 1994-03-10 Lens shutter camera including zoom lens
US08/463,259 US5583596A (en) 1986-05-12 1995-06-03 Lens shutter camera including zoom lens
US08/462,687 US5673099A (en) 1986-05-12 1995-06-05 Lens shutter camera including zoom lens
KR1019950703638A KR960702910A (en) 1986-05-12 1995-08-28 Lens shutter type zoom lens camera
US08/646,114 US5713051A (en) 1986-05-12 1996-05-07 Lens shutter camera including zoom lens
US08/838,016 US5966551A (en) 1986-05-12 1997-04-22 Lens shutter camera including zoom lens
HK98100938A HK1001900A1 (en) 1986-05-12 1998-02-06 Lens shutter camera including a zoom lens system
HK98100942A HK1001904A1 (en) 1986-05-12 1998-02-06 Photographic optical system and camera including such a system
HK98100939A HK1001901A1 (en) 1986-05-12 1998-02-06 Flexible printed circuit with anti-reflection device for a lens shutter camera
HK98100940A HK1001902A1 (en) 1986-05-12 1998-02-06 Lens cap opening and closing mechanism
HK98100936A HK1001905A1 (en) 1986-05-12 1998-02-06 Lens shutter camera including zoom lens
HK98100941A HK1001903A1 (en) 1986-05-12 1998-02-06 Photographic optical system and camera including such a system
HK98100937A HK1001906A1 (en) 1986-05-12 1998-02-06 Guide mechanism of a flexible printed circuit board for a lens shutter camera

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1986080862U JPH0532837Y2 (en) 1986-05-28 1986-05-28

Publications (2)

Publication Number Publication Date
JPS62193229U JPS62193229U (en) 1987-12-08
JPH0532837Y2 true JPH0532837Y2 (en) 1993-08-23

Family

ID=30932058

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1986080862U Expired - Lifetime JPH0532837Y2 (en) 1986-05-12 1986-05-28

Country Status (1)

Country Link
JP (1) JPH0532837Y2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0755546Y2 (en) * 1988-06-27 1995-12-20 旭光学工業株式会社 Zoom lens with barrier device

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57196223A (en) * 1981-05-28 1982-12-02 Canon Inc Capless camera

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57196223U (en) * 1981-06-10 1982-12-13

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57196223A (en) * 1981-05-28 1982-12-02 Canon Inc Capless camera

Also Published As

Publication number Publication date
JPS62193229U (en) 1987-12-08

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