JPS5885424A - Film winding and rewinding device for camera - Google Patents
Film winding and rewinding device for cameraInfo
- Publication number
- JPS5885424A JPS5885424A JP18463281A JP18463281A JPS5885424A JP S5885424 A JPS5885424 A JP S5885424A JP 18463281 A JP18463281 A JP 18463281A JP 18463281 A JP18463281 A JP 18463281A JP S5885424 A JPS5885424 A JP S5885424A
- Authority
- JP
- Japan
- Prior art keywords
- winding
- film
- rewinding
- camera
- motor
- 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
Links
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B17/00—Details of cameras or camera bodies; Accessories therefor
- G03B17/42—Interlocking between shutter operation and advance of film or change of plate or cut-film
- G03B17/425—Interlocking between shutter operation and advance of film or change of plate or cut-film motor drive cameras
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Details Of Cameras Including Film Mechanisms (AREA)
Abstract
Description
【発明の詳細な説明】
本発明はカメラの巻上げ巻戻し装置、特に一つの駆動源
からの駆動力によりフィルムの巻上げ巻戻しを行なうカ
メラの巻上は巻戻し装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a camera winding and rewinding device, and more particularly to a camera winding and rewinding device that winds and rewinds a film using a driving force from a single driving source.
従来より一つの駆動源からの駆動力を巻上げ系、春戻し
系に選択的に伝津達してフィルムの巻上げ巻戻しを行な
うカメラは種々知られており、例えば一方向クラッチを
巻上げ系と巻戻し系にそれぞれ配置して、駆動源の回転
方向により駆動力を選。Various cameras have been known in the past that wind and rewind film by selectively transmitting driving force from one drive source to the winding system and the spring rewind system. Place each in the system and select the driving force depending on the rotation direction of the driving source.
択的に伝達するようなしたカメラの巻上げ巻戻し装置も
特公昭４３−４１３８号公報により公知となされている
。ところで、カメラの巻上げ巻戻し装置においては、フ
ィルムの巻上けまたは巻戻しを行なう際、巻取り側の回
転により送り出し側も駆動源からの駆動力が口（接伝達
されない状態で回転すると共に、巻取り側のフィルム巻
取り径は小から大へ、また送り出し側のフィルム巻取り
径は犬から小へと変化して、送り出し側の回転速度がフ
ィルムの巻取りが進むにつれて速くなる。このため、出
力側に対する入力側の相対的回転方向により非伝達状態
を保持する一方面クラッチを用いて構成した特公昭４３
−４１３８号公報の装置では、例えば巻戻しのＩに、巻
上は糸に配置された一方向クラッチの出力側はフィルム
の給送によって回転されるので、巻戻しが進んで出力側
の回転速度が入力側の回転速度より速く々っだとき該一
方向クラッチは接続されて伝達状態となってしまい、駆
動源からの駆動力を巻戻し機構に伝達することが不可能
となってしまう。A winding and rewinding device for a camera which selectively transmits information is also known from Japanese Patent Publication No. 43-4138. By the way, in the winding and rewinding device of a camera, when winding or rewinding the film, the rotation of the winding side causes the driving force from the drive source to also rotate on the feeding side (without being directly transmitted). The film winding diameter on the winding side changes from small to large, and the film winding diameter on the feeding side changes from small to small, and the rotational speed on the feeding side increases as the film winding progresses. , 1973, which was constructed using a one-sided clutch that maintains a non-transmission state depending on the relative rotational direction of the input side to the output side.
In the device of Publication No. 4138, for example, the output side of a one-way clutch arranged on the thread I for rewinding and the thread for winding up is rotated by the feeding of the film, so that the rewinding progresses and the rotational speed of the output side When the rotational speed of the one-way clutch is faster than the rotational speed of the input side, the one-way clutch is connected and becomes a transmission state, making it impossible to transmit the driving force from the driving source to the rewinding mechanism.
即ち、このような一方向クラッチは入力側がクラッチを
非伝達状態とする方向に回転している際に、その速ルー
よりも速く出力側が々んらかの外力によって同方向に回
転すると、接続されて伝達状態となってしまう欠点があ
るため、この一方向クラッチを用いて構成したカメラの
巻上げ春戻し装置は上列した小都合を避けられなかった
。このため、従来の一方向クラッチを用いたカメラの巻
」−げ巻戻し装置６では、巻」−げ巻戻しを支１９．１
々く確実に行なうためには、駆動力を伝達する歯車の噛
み合いを切換えるクラッチ手段が必要となり、機構が複
雑化、大型化して好ましいものでｒｒｉ々かった。In other words, with such a one-way clutch, when the input side is rotating in the direction that makes the clutch non-transmitting, if the output side is rotated in the same direction due to some external force faster than the speed loop, the one-way clutch will be disconnected. Because of the disadvantage that the one-way clutch is used in the transmission state, camera winding and spring-returning devices constructed using this one-way clutch cannot avoid the disadvantage of being placed in the upper row. For this reason, the camera winding and rewinding device 6 using the conventional one-way clutch supports the winding and rewinding at 19.1.
In order to do this more reliably, a clutch means is required to switch the meshing of the gears that transmit the driving force, which makes the mechanism complicated and large, which is undesirable.
また、小型のカメラに組み込むことが１難であるという
欠点もあった。Another drawback was that it was difficult to incorporate it into a small camera.
本発明はこのような事情に鑑み々されたもので、その目
的は送り出し側の回転により駆動源から巻取り側への駆
動力の伝達が妨害されることのない一方向クラッチを用
いたカメラの巻上げ巻戻し装置を提供することにある。The present invention has been devised in consideration of the above circumstances, and its purpose is to provide a camera using a one-way clutch in which the transmission of driving force from the drive source to the winding side is not hindered by the rotation of the feeding side. An object of the present invention is to provide a winding and rewinding device.
以下、本発明を図に示した実施例に基づいてＩ’Ｆ細に
説明する。Hereinafter, the present invention will be explained in detail based on the embodiment shown in the drawings.
第１図ＱＪ本発明のカメラの巻上は巻戻し装置を示す斜
視（しくで、図中ａは駆動源であるモータ、ｂ並びにｂ
′は巻」−は銘、巻戻し系の伝達歯車列中に設けられた
一方向クラッチで、一方向クラッチｂはモータａの正転
時、モータａの駆動力４゛スプールＣに伝達してフィル
ムｆを巻上けると共に、一方向クラッチｂ／ （、ｌモ
ータａの逆転時、モータａの駆動力を巻戻しフォークｄ
に伝達して、フィルムｆをパトローネｅ内に巻戻すもの
である。な↓り、この実＆例はスプールドライブ方式で
フィルムｆを給送するよう構成きれており、定尺送り機
構等は公知のものであるので図示を省略している。Figure 1 QJ The winding of the camera of the present invention is a perspective view showing the rewinding device.
' is a one-way clutch installed in the transmission gear train of the rewinding system, and one-way clutch b transmits the driving force of motor a to spool C when motor a rotates forward. At the same time as winding the film f, the one-way clutch b/ (,l
, and rewinds the film f into the cartridge e. In this example, the film f is fed by a spool drive system, and the fixed length feeding mechanism is well known and is not shown in the drawings.
次に、第２図は前述の一方向りラッチｂ 、 ｂ’の構
成を詳細に示す斜視図である。この図において、１は入
力歯車で、下面側に駆動力を伝達するための切込部１ａ
を有する。２は入力歯車ｌの回転力を出力側へ伝達する
爪部材で、穴２ａを介して爪支持板３の支軸３ａに回転
自在に支持される。４は出力歯車で、爪部材２と相対す
る内周面に爪歯型４ａを有している。また爪部材２の爪
２ｂと爪歯型４ａＶｉラチェット機構に用いられるもの
と同様な関係となるようにそれぞれ形成されている。Next, FIG. 2 is a perspective view showing in detail the structure of the one-way latches b, b' mentioned above. In this figure, 1 is an input gear with a notch 1a for transmitting driving force to the lower surface side.
has. Reference numeral 2 denotes a pawl member that transmits the rotational force of the input gear l to the output side, and is rotatably supported by a support shaft 3a of the pawl support plate 3 through a hole 2a. Reference numeral 4 denotes an output gear, which has a pawl tooth type 4a on its inner circumferential surface facing the pawl member 2. Further, the pawl 2b of the pawl member 2 and the pawl tooth type 4a are formed to have the same relationship as that used in the Vi ratchet mechanism.
爪部材２の突出部２Ｃは入力歯車１の切込部１ｃ内に入
り込んでおり、人力歯車１０回転力向に応じて爪部材２
を支軸３ａを中心に回動して、爪部材にの爪２ｂと爪歯
型４ａとの保合、解除を制御するよう々されている。５
は入力歯車１１爪支持板３、出力歯車４を回動自在に支
持する支持軸で、周面５ａに穴１ａを介して入力歯車１
を、また周面５ｂに穴３ｂを介して爪支持板３を、周面
５ｃに穴４ｂを介して出力歯車４をそれぞれ支持してい
る。The protruding portion 2C of the pawl member 2 enters into the notch portion 1c of the input gear 1, and the pawl member 2
is rotated about a support shaft 3a to control engagement and release of the claw 2b and the claw tooth type 4a on the claw member. 5
is a support shaft that rotatably supports the input gear 11, the pawl support plate 3, and the output gear 4;
Further, the pawl support plate 3 is supported on the circumferential surface 5b via the hole 3b, and the output gear 4 is supported on the circumferential surface 5c via the hole 4b.
次に第３図（ａ） （ｂ）に基づいて、この実施例の動
作を説明する。なお、この実施例では入力歯車１０時計
方向の回転によりクラッチを接続し、反時計方向の１Ｌ
１１転によりクラッチを切断する場合を示している。１
だ、第３図（ａ）はクラッチ接続状態、第３図（ｂ）ｔ
／′ｉクラッチ切断状態を示している。Next, the operation of this embodiment will be explained based on FIGS. 3(a) and 3(b). In this embodiment, the clutch is connected by rotating the input gear 10 clockwise, and the clutch is connected by rotating the input gear 10 in the counterclockwise direction.
This shows the case where the clutch is disengaged by the 11th turn. 1
Fig. 3(a) shows the clutch connected state, Fig. 3(b) t
/'i Indicates clutch disengaged state.
第３図（切の状態から入力歯車１が時計方向（矢印Ａ）
に回転を開始すると、突出部２ｃが切込部ｌａの一端に
抑草れて爪部材２が支軸３ａを中心長板３、出力ｔｈｔ
ｈ４ ｕ −ｙ、、となって時ｈ１方向（矢印０）に回
転することに在る。また、この状態で人力歯車１の回転
が停止しても爪にｂと爪歯型４ａとの保合は保たれるの
で、次に人力歯車が時計方向に回転する隙、螢〈タイム
ラフなく出力歯車４の回転を開始させることができる。Figure 3 (Input gear 1 is turned clockwise from the off state (arrow A)
When the rotation starts, the protruding part 2c is held down by one end of the notch la, and the claw member 2 moves the support shaft 3a to the center elongated plate 3, and the output tht
h4 u - y, and rotates in the h1 direction (arrow 0). In addition, even if the rotation of the human gear 1 stops in this state, the engagement between the pawl b and the pawl tooth pattern 4a is maintained, so there is no time lag when the human gear rotates clockwise, and the output is output without any time lag. Rotation of the gear 4 can be started.
逆に、この状態から入力歯車ｌが長時Ｈ１方向（矢印１
））に回転を開始すると、突出部２ｃが切込部１ａの他
端に押されて爪部材２が支軸３ａを中心に時計方向（矢
印孔）に回転すると共に、爪支持板３が反時計方向に回
転し、爪２ｂと型歯車４ａとの係合が解除される。この
ため、入力歯車１０反時計方向の回転は全く出力歯車４
に伝達されず、一方では出力歯車４の回転（朱印Ｂ＋
）が完全に自由となる。従がって、この時に出力歯車４
になんらかの回転力が加えられても、それが人力山車１
０回転に影暢を与えることがない。また、この状態は人
力歯車ｌの回転が停止しても変わらす、次に人力歯車１
が時計方向の回転を開始するまで保楯式扛る０
従って、このような一方向クラッチｂ 、 ｂ’を有す
る第１図示の裂開ｄ、スプールＣ並ひに巻戻しフォーク
ｄの一方のみ奮モータａの回転により確実に駆動するこ
とになると共に、駆動力を伝辷する必要のない時には、
スプール０または巻戻しフォークｄとモータａとの関係
を完全に切断し−Ｃ１フィルムｆの巻上は巻戻し動作を
行なへうことになる。Conversely, from this state, the input gear l will move in the H1 direction (arrow 1) for a long time.
)) When the rotation starts, the protrusion 2c is pushed by the other end of the notch 1a, and the claw member 2 rotates clockwise (indicated by the arrow hole) around the support shaft 3a, and the claw support plate 3 is reversed. It rotates clockwise, and the engagement between the pawl 2b and the mold gear 4a is released. Therefore, the counterclockwise rotation of the input gear 10 is completely caused by the rotation of the output gear 4.
On the other hand, the rotation of the output gear 4 (shuin B+
) becomes completely free. Therefore, at this time, output gear 4
Even if some rotational force is applied to the human-powered float 1,
There is no influence on the 0 rotation. Also, this state will change even if the rotation of the manual gear 1 stops.
Therefore, only one of the splitting d, spool C and rewinding fork d having such one-way clutches b and b' is activated. The rotation of motor a ensures reliable driving, and when there is no need to transmit driving force,
The relationship between the spool 0 or the rewinding fork d and the motor a is completely cut off, and the winding of the C1 film f is performed in a rewinding operation.
以上、詳細に説明したように、本発明は入力側の絶対的
な回転方向により非伝達ｈ’ｆｈを保持す４一方向クラ
ッチを巻上げ系並びに巻戻し才に配置して巻上は巻戻し
装置を構成したので、例えば巻戻し中に巻」二は糸から
の回転が駆動源等に伝達されてしまうよう々ことがなく
、巻戻し途中で動作が停止してしまうよう庁こともない
。このため、本発明によれば、常に確実な巻」二げ巻戻
し動作を期待することができる。As explained above in detail, the present invention has four one-way clutches that maintain non-transmission h'fh depending on the absolute rotational direction of the input side, and are arranged in the winding system and the unwinding system, and the winding is carried out by the unwinding system. Because of this structure, for example, during rewinding, the rotation from the winding yarn is not transmitted to the drive source, etc., and the operation is not stopped during rewinding. Therefore, according to the present invention, reliable winding and unwinding operations can be expected at all times.
また、本発明によれにｒ１伝達歯車の噛み合いを巻上は
巻戻し動作の切換に応して変化させる必要もないので、
装置自体のＩｓ成を簡単なものとすることができ、カメ
ラの信頼１ソ１゜を向」二することができる。Further, according to the present invention, there is no need to change the meshing of the r1 transmission gear in response to switching between winding and rewinding operations.
The configuration of the device itself can be simplified, and the reliability of the camera can be improved.
第１図は本発明のカメラの巻−には巻戻し装置の一実施
例を示す斜視図、＠２図は第１図示の一方面クラッチの
詳細を示す斜視図、第３図（ａ） （ｂ） Ｉ７ｉ第２
図の要部を示す平面図である。
ａ〜−ｍ−モーター、 ｂ 、 ｂ’−−−一方向ク
ラッチ、ｃ−−−−−スプール、ｄ−一一一巻戻しフメ
ーク、ｅ −−−パトローネ、ｆ −−−、フィルム、
１−−−−一人力歯車、２−一−−爪部材、４−一一−
出力歯車。
出願人 キャノン株式会社Fig. 1 is a perspective view showing an embodiment of the winding and unwinding device of the camera of the present invention, Fig. 2 is a perspective view showing details of the one-sided clutch shown in Fig. 1, and Fig. 3 (a) b) I7i 2nd
FIG. 3 is a plan view showing the main part of the figure. a～-m-motor, b, b'---one-way clutch, c----spool, d-111 rewind make, e---patrone, f---, film,
1---- Single power gear, 2-1--claw member, 4-11-
output gear. Applicant Canon Co., Ltd.
Claims (1)
に伝達して、フィルムの巻上げ巻戻しを行なうカメラの
巻上げ巻戻し装置において、上記巻上げ系には上記駆動
源が第１の方向に回転することにより伝達状態となる第
１の一方面クラッチを配し、上記巻戻し糸には上記駆動
源が第２の方向に回転することにより伝達状態と在る第
２の一方面クラッチを配すると共に、上記第１並びに第
２の一方面クラッチを入力側の絶対的な回転方向により
非伝達状態を保持するように構成したことを特徴とする
カメラの巻上げ巻戻し装置。In a camera winding/rewinding device for winding and rewinding a film by selectively transmitting driving force from a drive source to a winding system and a rewinding system, the winding system includes a drive source directed in a first direction. A first one-sided clutch is disposed in a transmission state when the drive source rotates in a second direction, and a second one-sided clutch is disposed in a transmission state when the drive source rotates in a second direction. A winding and rewinding device for a camera, characterized in that the first and second one-sided clutches are configured to maintain a non-transmitting state depending on the absolute rotational direction of the input side.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18463281A JPS5885424A (en) | 1981-11-17 | 1981-11-17 | Film winding and rewinding device for camera |
| DE19823242371 DE3242371A1 (en) | 1981-11-17 | 1982-11-16 | ONE-WAY CLUTCH IN A WINDING AND REWINDING SYSTEM FOR A CAMERA |
| US06/442,022 US4548304A (en) | 1981-11-17 | 1982-11-16 | One-way clutch and winding and rewinding device for camera using the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18463281A JPS5885424A (en) | 1981-11-17 | 1981-11-17 | Film winding and rewinding device for camera |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5885424A true JPS5885424A (en) | 1983-05-21 |
Family
ID=16156621
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18463281A Pending JPS5885424A (en) | 1981-11-17 | 1981-11-17 | Film winding and rewinding device for camera |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5885424A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2021071196A (en) * | 2019-10-29 | 2021-05-06 | 株式会社ハイレックスコーポレーション | Driving device |
-
1981
- 1981-11-17 JP JP18463281A patent/JPS5885424A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2021071196A (en) * | 2019-10-29 | 2021-05-06 | 株式会社ハイレックスコーポレーション | Driving device |
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