Claims
- 1. A winding up device for a camera including:
- (a) a takeup spool;
- (b) winding-up means for driving said spool to move in a winding up direction;
- (c) a sprocket arranged to be driven to rotate as said spool winds up a film;
- (d) a first one-way clutch for transmitting motion of said sprocket in a film winding up direction;
- (e) a second one-way clutch for transmitting motion of said winding up means in the winding up direction; and
- (f) one-frame advancement control means cooperative with both of said first and said second one-way clutches, whereby when the film is loaded in said camera, said one-frame advancement control means is operated by the force transmitted by said first one-way clutch, and when the film is not loaded, it is operated by the force transmitted by said second one-way clutch.
- 2. A winding up device according to claim 1, further including a speed reduction gear between said winding up means and said second one-way clutch so that said sprocket runs faster, permitting said first one-way clutch to transmit motion of said sprocket to said one-frame advancement control means.
- 3. A winding up device according to claim 2, where said first and said second one-way clutches are arranged in coaxial relation to each other.
- 4. A winding up device according to claim 2, wherein said spool has a spool gear and winding up force of said winding up means is transmitted through the speed reduction gear and spool gear to said second one-way clutch.
- 5. A winding up device according to claim 4, further including:
- (g) film rewinding means; and
- (h) change over means for changing over the winding up force of said winding up means from one of said spool gear and said rewinding means to the other.
- 6. A winding up device according to claim 2, wherein said winding up means is provided with an electric motor and the driving force of said motor is utilized as the winding up force.
- 7. A winding up device for a camera including:
- (a) a takeup spool;
- (b) winding up means for driving said spool to move in a winding up direction;
- (c) a sprocket arranged to be driven to rotate as said spool winds up a film;
- (d) one-frame advancement control means; and
- (e) transmission means for transmitting either one of the driving force of said sprocket and the winding up force of said winding up means to said one-frame advancement control means, said transmission means having detecting means for detecting whether or not said sprocket is driven to rotate in the film winding up direction, whereby when rotation of said sprocket is detected by said detecting means, the driving force of said sprocket is transmitted to said one-frame advancement control means, and when standstill of said sprocket is detected by said detecting means, the winding up force of said winding up means is transmitted to said one-frame advancement control means.
- 8. A winding device for a camera including:
- (a) a takeup spool;
- (b) winding means for driving said spool to move in a winding direction;
- (c) a sprocket arranged to rotate as said spool winds film;
- (d) single frame advancement control means; and (e) transmission means for transmitting either one of the driving force of said sprocket and the winding force of said winding means to said single frame advancement control means, said transmission means having a clutch for transmitting the driving force of the sprocket to the single frame advancement control means when the film is wound on the spool, and transmitting the winding force of the winding means to the single frame advancement control means when the film is not wound on the spool.
- 9. A winding device according to claim 8, wherein the clutch is a one-way clutch.
- 10. A winding device according to claim 9, wherein the transmission means has a first rotation member rotatable by the winding force of the winding means, and a second rotation member associated with the sprocket, and the one-way clutch being arranged to detect the relative speeds of the first and second rotation members and transmit the rotation force of the rotation member which is rotating faster.
- 11. An electric driving device for a camera, comprising:
- (a) a takeup spool;
- (b) driving means for driving said spool in a winding direction;
- (c) a sprocket arranged to be driven to rotate as said spool winds a film;
- (d) shutter charging means;
- (e) transmission means for transmitting either of the driving force of the sprocket and driving force of the driving means to the shutter charging means;
- (f) said transmission means having a clutch for transmitting the driving force of the sprocket to the shutter charging means when the film is wound on the spool, and for transmitting the driving force of the driving means to the shutter charging means when the film is not wound on the spool.
- 12. An electric driving device according to claim 11, further comprising single frame advancement control means associated with the shutter charging means.
- 13. An electric driving device according to claim 12, further comprising film rewinding means for rewinding film and wherein the transmission means includes changeover means for transmitting the driving force of the driving means from the shutter charging means and the single frame advancement control means to the film rewinding means.
- 14. A winding device for a camera, comprising:
- a first drive system for performing a single-frame advance in correspondence to a film winding operation by means of a film;
- a second drive system for performing a single-frame advance in correspondence to the film winding operation without film; and
- means for actuating one of the first and second drive systems.
- 15. A winding device according to claim 14, wherein the actuating means is a detection means for detecting a speed difference between the first and second drive systems, said detecting means actuating either of the first and second drive systems operating at a greater driving speed.
- 16. A winding device for a camera, comprising:
- a first drive system for performing a shutter charge in correspondence to a winding operation by means of a film;
- a second drive system for performing a shutter charge in correspondence to a winding operation without film; and
- means for effectuating either of the first and second drive systems and nullifying at least one of the first and second drive systems when the drive of the drive systems is changed from one direction to another direction.
- 17. A winding device for a camera, comprising:
- a first drive system for performing a single-frame advance in correspondence to a winding operation by means of a film;
- a second drive system for performing a single-frame advance in correspondence to the winding operation without film; and
- selection means for effectuating either of the first and second drive systems and effectuating the first drive system when the film is loaded and effectuating the second drive system when the film is not loaded.
Priority Claims (1)
Number |
Date |
Country |
Kind |
55-36766 |
Mar 1980 |
JPX |
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Parent Case Info
This is a continuation of application Ser. No. 379,449 filed May 18, 1982, now abandoned which is a continuation of application Ser. No. 245,350 filed Mar. 19, 1981, now abandoned.
US Referenced Citations (4)
Continuations (2)
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Number |
Date |
Country |
Parent |
379449 |
May 1982 |
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Parent |
245350 |
Mar 1981 |
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