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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