Claims
- 1. A camera device comprising
- (i) a rotatable film winding spool, on the circumferential surface of which a film is wound,
- (ii) a rotatable film rewinding spool, by the rotation of which the film is rewound,
- (iii) a driving power source,
- (iv) driving power transmission means for transmitting a driving power from said driving power source to said winding spool and rewinding spool, and
- (v) one-way clutches each provided between said driving power transmission means and said winding spool and between said driving power transmission means and said rewinding spool,
- (vi) wherein a revolution speed in a winding direction of said driving power transmission means during a winding operation is set to a level not lower than a revolution speed of said rewinding spool rotated by the film.
- 2. A camera device according to claim 1, wherein said driving power source is a motor.
- 3. A camera device according to claim 1, wherein said driving power transmission means is a gear train.
- 4. A camera device according to claim 1, wherein a revolution speed in a rewinding direction of said driving power transmission means during a rewinding operation is set to a level not lower than a revolution speed of said winding spool rotated by the film.
- 5. A camera device comprising
- (i) a rotatable film winding spool, on the circumferential surface of which a film is wound,
- (ii) a rotatable film rewinding spool, by the rotation which the film is rewound,
- (iii) a rotatable sprocket engaging with perforations of the film,
- (iv) a driving power source,
- (v) driving power transmission means for transmitting a driving power from said driving power source to said winding spool, rewinding spool, and sprocket, and
- (vi) one-way clutches each provided in said driving power transmission means, winding spool, rewinding spool, and sprocket,
- (vii) wherein a revolution speed in a winding direction of said driving power transmission means during a winding operation is set to a level not lower than a revolution speed of said rewinding spool rotated by the film and a revolution speed in a rewinding direction of said driving power transmission means is set to a level not higher than a revolution speed of said sprocket rotated by the film.
- 6. A camera device according to claim 5, wherein said driving power source is a motor.
- 7. A camera device according to claim 5, wherein said driving power transmission means is a gear train.
- 8. A camera device according to claim 5, wherein the revolution speed in the rewinding direction of said driving power transmission means during a rewinding operation is set to a level not lower than a revolution speed of said winding spool rotated by the film and the revolution speed in the rewinding direction of said driving power transmission means is set to a level not lower than the revolution speed of said sprocket rotated by the film.
- 9. An automatic winding device of a camera comprising
- (i) a one-way clutch arranged between a driving power transmission means for transmitting a rotary driving power from a driving power source to a sprocket and said sprocket for transmitting only a driving power in a film winding direction from said driving power transmission means to said sprocket,
- (ii) wherein a revolution speed in a winding direction of said driving power transmission means during a winding operation is set to a level not higher than a revolution speed of said sprocket rotated by the film, and
- (iii) a revolution speed in a rewinding direction of said driving power transmission means during a rewinding operation is set to a level not lower than the revolution speed of said sprocket rotated by the film; and
- (iv) a one-way clutch arranged between said driving power transmission means and a reversely rotatable film winding spool for transmitting only a driving power in a film winding direction from said driving power transmission means to said winding spool,
- (v) wherein the revolution speed in the rewinding direction of said driving power transmission means during the rewinding operation is set to a level not lower than a revolution speed of said winding spool rotated by the film.
- 10. An automatic winding device of a camera according to claim 9, further comprising
- (i) a one-way clutch arranged between the driving power transmission means and a reversely rotatable film rewinding spool for transmitting only a driving power in a film rewinding direction from said driving power transmission means to said rewinding spool,
- (ii) wherein the revolution speed in the winding direction of said driving power transmission means during the winding operation is set to a level not lower than a revolution speed of said rewinding sprocket rotated by the film.
Priority Claims (9)
Number |
Date |
Country |
Kind |
55-172652 |
Dec 1980 |
JPX |
|
55-172653 |
Dec 1980 |
JPX |
|
55-182097 |
Dec 1980 |
JPX |
|
55-182098 |
Dec 1980 |
JPX |
|
55-182099 |
Dec 1980 |
JPX |
|
55-185698 |
Dec 1980 |
JPX |
|
55-185699 |
Dec 1980 |
JPX |
|
56-3826 |
Jan 1981 |
JPX |
|
56-41722 |
Mar 1981 |
JPX |
|
Parent Case Info
This application is a continuation of application Ser. No. 327,270, filed Dec. 4, 1981, abandoned.
US Referenced Citations (9)
Continuations (1)
|
Number |
Date |
Country |
Parent |
327270 |
Dec 1981 |
|