JPH0383027A - Stepping motor-driven focusing and photographing device - Google Patents

Stepping motor-driven focusing and photographing device

Info

Publication number
JPH0383027A
JPH0383027A JP22097589A JP22097589A JPH0383027A JP H0383027 A JPH0383027 A JP H0383027A JP 22097589 A JP22097589 A JP 22097589A JP 22097589 A JP22097589 A JP 22097589A JP H0383027 A JPH0383027 A JP H0383027A
Authority
JP
Japan
Prior art keywords
ring
shutter
focusing
stepping motor
driving
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.)
Pending
Application number
JP22097589A
Other languages
Japanese (ja)
Inventor
Masaru Yamamoto
勝 山本
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kyocera Corp
Original Assignee
Kyocera Corp
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 by Kyocera Corp filed Critical Kyocera Corp
Priority to JP22097589A priority Critical patent/JPH0383027A/en
Publication of JPH0383027A publication Critical patent/JPH0383027A/en
Pending legal-status Critical Current

Links

Landscapes

  • Focusing (AREA)
  • Shutters For Cameras (AREA)
  • Automatic Focus Adjustment (AREA)

Abstract

PURPOSE:To obtain the stepping motor-driven focusing and photographing device with simple constitution by using a stepping motor as a driving source and driving a shutter to open and close after driving for automatic focusing. CONSTITUTION:This device includes the stepping motor 1, a driving ring 7 which is turned cooperatively with this stepping motor 1 and has a driving pin 7b and a hooking pawl 7c turned laterally by being energized to a neutral position, and a focusing ring 8 having a gear part 7a turned cooperatively with this driving ring 7 and an engaging part 8b. The device includes a hooking pawl 10 which is interlocked by ratchet to the gear part of this focusing ring 8 and maintains the focusing state by engaging and detaining therewith in the focusing position, a shutter ring 9 having the gear part 8a driven by ratchet engagement with the hooking pawl 7c disposed to the driving ring 7 and a cam part 9d, and a driving lever 11 which is turned by the engagement and contact with the cam part 9d of this shutter ring 9. The device is constituted by including the shutter vanes which generate the aperture corresponding to the turning quantity of the shutter driving lever 11. The focusing driving and the opening and closing of the shutter are executed with the simple constitution in this way.

Description

【発明の詳細な説明】 「産業上の利用分野」 本発明はステッピングモータを駆動源とし、自動合焦駆
動した後シャッタ開閉駆動するステッピングモータ駆動
合焦撮影装置に関する。
DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a stepping motor-driven focusing photographing device that uses a stepping motor as a driving source and that drives an automatic focus and then drives a shutter to open and close.

「従来の技術」 従来の技術では自動合焦駆動とシャッタ開閉駆動とは別
の系列で作動されていた。
"Prior Art" In the conventional technology, the automatic focusing drive and the shutter opening/closing drive were operated in separate systems.

「発明が解決しようとする課題」 従来の装置では機構が複雑であった。"Problem that the invention attempts to solve" Conventional devices had complicated mechanisms.

「課題を解決するための手段」 本発明は簡単な構成で自動合焦後シャッタ開閉駆動させ
ることを目的とし、CPU等にニジ定められたステップ
数の正逆回転を定められたタイムチャートに従って駆動
されるステッピングモータと、このステッピングモータ
に連動して回動され、駆動ピンと中立位置に付勢され左
右回動するフック爪を有する駆動リングと、この駆動リ
ングに連携して回動され円周部のギア部と前記駆動ピン
に接して駆動される係合部とを有する合焦リングと、前
記合焦リングのギア部にラチェット連動し合焦位置で係
合係止して合焦状態を保持するフック爪と、駆動リング
に配設されたフック爪にラチェット係合して駆動される
ギア部とカム部とを有するシャッタリングと、このシャ
ッタリングのカム部に係接して回動されるシャッタ駆動
レバーと、こ0)シャッタ駆動レバーの回動量に応じた
開口を発生するシャッタ羽根とから成るステッピングモ
ータ駆動合焦撮影装置を提供する。
"Means for Solving the Problem" The present invention aims to open and close the shutter after automatic focusing with a simple configuration, and drives the forward and reverse rotation of the number of steps determined by the CPU, etc. according to a determined time chart. a stepping motor that rotates in conjunction with the stepping motor, a drive ring that is rotated in conjunction with the stepping motor and has a hook claw that is biased to a drive pin and a neutral position and rotates from side to side; a focusing ring having a gear portion and an engaging portion that is driven in contact with the drive pin, and a ratchet interlocking with the gear portion of the focusing ring to engage and lock at a focused position to maintain a focused state. A shutter ring having a hook pawl disposed on a drive ring, a gear portion and a cam portion that are driven by ratcheting with the hook pawl disposed on a drive ring, and a shutter that is rotated by engaging with the cam portion of the shutter ring. To provide a stepping motor-driven focusing photographing device comprising a drive lever and (0) a shutter blade that generates an aperture according to the amount of rotation of the shutter drive lever.

「昨 用」 本発明によれば簡単な構成で自動合焦とこれに続くシャ
ッタ開閉駆動が行われる。
``Last Use'' According to the present invention, automatic focusing and subsequent shutter opening/closing drive are performed with a simple configuration.

「実施例」 以下図面を用いて本発明の実施例を詳細に説明する。"Example" Embodiments of the present invention will be described in detail below with reference to the drawings.

第1図乃至第5図は本発明の実施例の構成と動作を説明
する図であり、第1図は撮影前の初期状態を示す構成図
、第2図は合焦駆動された状態を示す構成図、第3図は
シャッタ開閉状態を示す構成図、第4図は合焦リングの
復帰動作を説明する構成図1工び第5図(20乃至(し
)はこれら一連の動作を説明するタイムチャートである
1 to 5 are diagrams for explaining the configuration and operation of an embodiment of the present invention. FIG. 1 is a configuration diagram showing an initial state before photographing, and FIG. 2 shows a state in which focus is driven. Fig. 3 is a block diagram showing the shutter opening/closing state, Fig. 4 is a block diagram explaining the return operation of the focusing ring, Figs. This is a time chart.

先ず構成について説明すると、各図[bいて共通の部材
は共通の符号で示し、1はステッピングモータで、CP
U等[工り予め測距および測光装置等[工り測定演算し
て定められた回転ステップ数と駆動停止時間とで回動制
御される。2乃至6はステッピングモータ1の動力を伝
える伝達用ギア群である。7は合焦機構とシャッタ機構
とを作動させる駆動リングで、7aは円周に設けられた
ギア部、7bは植設された駆動ピン、7Cはフック爪で
ばねにより中立位置に付勢され左右に回動される。8は
撮影レンズを合焦駆動する合焦リングであり、8aは円
周上に設けられたギア部で、両端に深く切り込まれた溝
部3c 、3dを有しておシ、8dは駆動ピン7bVc
当接して駆動される係合部、8rは突部8eK懸架され
て合焦リングを回動付勢するばねである。9はシャッタ
リングで、9aは円周上に設けられ両端に深い溝部9+
)。
First, to explain the configuration, common members in each figure [b] are indicated by common symbols, 1 is a stepping motor, and CP
U, etc. [Rotation is controlled by the number of rotation steps and drive stop time determined by pre-processing distance measurement and photometry devices, etc. [processing measurement calculations]. Reference numerals 2 to 6 are transmission gear groups for transmitting the power of the stepping motor 1. 7 is a drive ring that operates the focusing mechanism and shutter mechanism, 7a is a gear part provided on the circumference, 7b is a planted drive pin, and 7C is a hook claw that is biased to a neutral position by a spring and rotates left and right. is rotated. 8 is a focusing ring that drives the photographic lens to focus, 8a is a gear part provided on the circumference, and has deep grooves 3c and 3d at both ends; 8d is a drive pin; 7bVc
The engaging portion 8r that comes into contact with and is driven is a spring that is suspended by the protrusion 8eK and biases the focusing ring to rotate. 9 is a shutter ring, and 9a is provided on the circumference with deep grooves 9+ at both ends.
).

9Cを備えたギア部、9dはカム部、9fはレバ一部9
elC懸架されシャッタリングを回動付勢するばねであ
る。10はフック爪で、ばね10aにより中立位置に付
勢されている。11はシャッタ駆動レバーで、11aは
支軸、llbはカム部9diC摺接駆動されるピン、l
lCはピンである。
Gear part with 9C, 9d cam part, 9f lever part 9
This is a spring that is suspended by the elC and biases the shutter ring to rotate. 10 is a hook pawl, which is urged to a neutral position by a spring 10a. 11 is a shutter drive lever, 11a is a support shaft, llb is a pin that is driven in sliding contact with the cam part 9diC, l
lc is a pin.

12はシャッタ羽根であり、図を簡略にするため1枚の
み図示し、1枚は省略しである。13は開]−1である
Reference numeral 12 indicates shutter blades, and in order to simplify the drawing, only one is shown and one is omitted. 13 is open]-1.

次に動作について説明する。第1図の初期状態圧ふ・し
)では、パルスモータが初期位置にあり、駆動リングも
初期位置にあって、合焦リングとシャッタリングは共に
係止ど78g、9gに突部8Cとレバ一部9Cがばね8
 f 、 9 f&C工り当接係止され、係合部8bが
駆動ピン7bに当接もしくは規定距離を維持して装置全
体が初期位置状態に維持さハている。この状態から予め
別の測距装置で測距され、CPt1Cより演算された量
だけ、あるいは合焦信号が発生するまでパルスモータが
回動し、駆動リング7が回動し、駆動ピン7bが係合部
8biC当接して合焦リングを撮影レンズが合焦するま
で回動させ、合焦位置にbrて第2図に示′fように、
フック爪7cがギア部9aK@合し、フック爪10がギ
ア部8aに歯合して、この合焦状態が保持される(第5
図、駆動リング釦よび合焦リング0→■)。次にステッ
ピングモータが予め測光装置で測光されCPUで演算さ
れたステップ数だけ逆転すると、第3図に示すように、
合焦リング8はフック爪10にLり係止されて合焦状態
を保持した状態で(第5図、合焦リング■−す■)、フ
ック爪7Cがシャッタリング9のギア部9aVこ保合し
てこれを回動させるので、カム部9dがシャッタ駆動レ
バー11のピンllbを押動し、支軸113を中心にこ
のレバー11を回動させ、ピンllCがシャッタ羽根1
2を開かせる(第4図、シャッタリングおよび駆動リン
グ■→■)。次に駆動リング7がステッピングモータに
より図の反時計方向に回動されると、駆動リングとシャ
ッタ駆動レバー11が初期位置方向に回動し、シャッタ
羽根は開成する(第5図、シャッタリング■◆■)。シ
ャヴタ閉或後さらkで駆動リングを同じ力向に回動を続
けると、シャッタリング9はレバー部9eが係止ピン9
gに当接して停止した後、フック爪7Cが溝部9bに達
して中立位置になり、合焦リング8は係合部8bが駆動
ピン7bに当接押動されて回動し、フック爪ioが溝部
8cK違して中立位置になる(第4図および第5図駆動
リング釦工び合焦リング■→■)。この状態からステツ
ピングが逆転して初期位置に戻ると、駆動リングか工び
合焦リングも初期位置に復帰する。このとキフヴク爪7
CとlOはギア部9aと8aに係合することなく移動す
ることは勿論である。このようにして装置全体が第1図
の初期位置に復帰する(第5図■→■)。な釦シャヅタ
開閉動作は、測光装置の測光量の多少にエリ、第5図の
■→■→■の工うな閉→全開→閉の作動の他、■→0→
■′の工うに全開に至る前に閉成する場合、おLび■→
■→■h■“の工うに全開状態を保持した後閉或する場
合等がある。
Next, the operation will be explained. In the initial state shown in Fig. 1, the pulse motor is in the initial position, the drive ring is also in the initial position, and the focusing ring and shutter ring are both locked. Part 9C is spring 8
f, 9 F&C machining abuts and locks, and the engaging portion 8b abuts the drive pin 7b or maintains a prescribed distance so that the entire device is maintained at the initial position. From this state, the pulse motor rotates by the distance measured in advance by another distance measuring device and calculated by CPt1C, or until a focusing signal is generated, the drive ring 7 rotates, and the drive pin 7b engages. Contact the focusing part 8biC, rotate the focusing ring until the photographing lens is in focus, and move it to the focusing position as shown in Fig. 2.
The hook claw 7c meshes with the gear portion 9aK@, the hook claw 10 meshes with the gear portion 8a, and this focused state is maintained (fifth
Figure, drive ring button and focusing ring 0→■). Next, when the stepping motor is reversed by the number of steps determined in advance by the photometer and calculated by the CPU, as shown in Figure 3,
The focusing ring 8 is L-locked to the hook pawl 10 to maintain the focused state (Fig. 5, focusing ring ■-su■), and the hook pawl 7C locks the gear portion 9aV of the shutter ring 9. Since the cam part 9d pushes the pin llb of the shutter drive lever 11 and rotates this lever 11 around the support shaft 113, the pin llC moves the shutter blade 1
2 (Figure 4, shutter ring and drive ring ■→■). Next, when the drive ring 7 is rotated counterclockwise in the figure by the stepping motor, the drive ring and the shutter drive lever 11 are rotated toward the initial position, and the shutter blades are opened (see Figure 5, shutter drive lever 11). ◆■). When the drive ring continues to be rotated in the same force direction after closing the shutter ring 9, the lever portion 9e of the shutter ring 9 will move to the locking pin 9.
After the hook claw 7C reaches the groove 9b and comes to a neutral position, the focusing ring 8 rotates as the engaging portion 8b comes into contact with the drive pin 7b and the hook claw 7C comes into contact with the drive pin 7b. crosses the groove 8cK and becomes the neutral position (drive ring button work and focusing ring ■→■ in FIGS. 4 and 5). When the stepping is reversed from this state and returns to the initial position, the drive ring or focusing ring also returns to the initial position. This and Kifuvuku Claw 7
Of course, C and IO move without engaging the gear parts 9a and 8a. In this way, the entire apparatus returns to the initial position shown in FIG. 1 (FIG. 5 ->■). The opening/closing operation of the button shutter depends on the amount of light measured by the photometer, and in addition to the operation of closing → fully open → closing as shown in Figure 5, the operation of → 0 →
■If the mechanism closes before it reaches full opening, please feel free ■→
■→■h■" There are cases where the valve is held fully open and then closed.

「発明の効果」 本発明によれば簡単な構成で合焦駆動とシャッタ開閉の
撮影が出来る。
"Effects of the Invention" According to the present invention, it is possible to perform focusing drive and shutter opening/closing photography with a simple configuration.

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

第1図乃至第5図は本発明の実施例を示し、第1図は初
期状態を示す構成図、第2図は合焦駆動された状態を示
す構成図、第3図はシャッタ開閉状態を示す構成図、第
4図は駆動リングと合焦リングの復帰動作を説明する構
成図および第5図は一連の動作を説明するタイムチャー
トである。
1 to 5 show embodiments of the present invention. FIG. 1 is a configuration diagram showing an initial state, FIG. 2 is a configuration diagram showing a focused state, and FIG. 3 is a diagram showing a shutter open/closed state. FIG. 4 is a configuration diagram illustrating the return operation of the drive ring and focusing ring, and FIG. 5 is a time chart illustrating a series of operations.

Claims (1)

【特許請求の範囲】[Claims] ステッピングモータにより自動的に合焦した後シヤッタ
開閉駆動するステッピングモータ駆動合焦撮影装置にお
いて、ステッピングモータと、前記ステッピングモータ
に連動して回動され駆動ピンとフック爪を有する駆動リ
ングと、前記駆動リングに連携して回動されギア部と係
合部とを有する合焦リングと、前記合焦リングのギア部
にラチェット連動し合焦位置で係止係合するフック爪と
、前記駆動リングに配設されたフック爪にラチェット係
合して駆動されるギア部とカム部とを有するシャッタリ
ングと、前記シャッタリングのカム部に係接して回動さ
れるシャッタ駆動レバーと、前記シャッタ駆動レバーの
回動量に応じた開口を発生させるシャッタ羽根とから構
成されたことを特徴とするステッピングモータ駆動合焦
撮影装置。
A stepping motor-driven focusing photographing device that automatically focuses by a stepping motor and then drives the shutter to open and close, comprising: a stepping motor; a driving ring that rotates in conjunction with the stepping motor and has a driving pin and a hook claw; and the driving ring. a focusing ring that rotates in conjunction with the gear portion and has an engaging portion; a hook pawl that is ratcheted to the gear portion of the focusing ring and locks and engages at the focusing position; and a hook pawl that is disposed on the drive ring. a shutter ring having a gear portion and a cam portion that are driven by ratcheting a hook pawl provided therein; a shutter drive lever that is rotated by engaging the cam portion of the shutter ring; A stepping motor-driven focusing photographing device comprising a shutter blade that generates an aperture according to the amount of rotation.
JP22097589A 1989-08-28 1989-08-28 Stepping motor-driven focusing and photographing device Pending JPH0383027A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP22097589A JPH0383027A (en) 1989-08-28 1989-08-28 Stepping motor-driven focusing and photographing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP22097589A JPH0383027A (en) 1989-08-28 1989-08-28 Stepping motor-driven focusing and photographing device

Publications (1)

Publication Number Publication Date
JPH0383027A true JPH0383027A (en) 1991-04-09

Family

ID=16759502

Family Applications (1)

Application Number Title Priority Date Filing Date
JP22097589A Pending JPH0383027A (en) 1989-08-28 1989-08-28 Stepping motor-driven focusing and photographing device

Country Status (1)

Country Link
JP (1) JPH0383027A (en)

Similar Documents

Publication Publication Date Title
US4868596A (en) Motor driven shutter for camera
US5202721A (en) Shutter device in automatic focusing and exposure camera
US5258797A (en) Camera shutter device incorporated with lens shifting mechanism
JPH0383027A (en) Stepping motor-driven focusing and photographing device
JP3041549B2 (en) Motor-driven shutter and camera equipped with this shutter
US4751537A (en) Photographing number change-over device for four lens camera
JP3052026B2 (en) Motor driven shutter
JP2739052B2 (en) Camera auto focus device
JP2913369B2 (en) Lens drive
JP2899896B2 (en) Motor-driven automatic focusing camera
JP3392211B2 (en) Camera shutter device and one-way rotation locking mechanism with cam action
JP2873108B2 (en) Stepping motor driven focusing photographing device
JP3067061B2 (en) Shutter drive mechanism that doubles as lens drive mechanism
JP2815209B2 (en) Camera and power transmission
JP3094254B2 (en) Pulse control camera, control reference position setting method thereof, and mechanical error adjustment method at the time of manufacture thereof
JP3030671B2 (en) Motor driven shutter
US6198882B1 (en) Camera
JP2549131Y2 (en) Camera shutter device
JPH03607B2 (en)
JPH0361936A (en) Stepping motor driving/focusing photographing device
JP3249600B2 (en) Shutter mechanism that doubles as lens drive mechanism
JPH0736339Y2 (en) Drive mechanism for camera
JPH0635224Y2 (en) Motor driven shutter device for camera
JP2573997Y2 (en) Camera shutter opening and closing mechanism
JPH11258481A (en) Lens driving mechanism