US5148198A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lens-fitted photographic film unit, a processor for processing the same, and a processing system therefor
Assignee: Fujifilm Holdings Corp
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Filing: 1991-06-04
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Granted: 1992-09-15
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Expires: 2011-06-04
Abstract
Abstract A lens-fitted photographic film unit provided with a shutter, a taking lens and a film wind-up mechanism has a film unit housing, an exposure station, a film supplying chamber and a film take-up chamber, which is provided with a spool for tightly winding exposed film. A film outlet is provided with the film take-up chamber to let out a film leader to the outside when rotating the spool in the unwinding direction. Light trapping fabric is attached in the film outlet to trap external light. In a preferred embodiment, the friction coefficient of a back surface is 0.35 or less with respect to an emulsion surface, whereas the dynamic friction coefficient is 0.36 or less with respect to a steel ball. A film processor for developing the film in the film unit is provided with a holder for loading film units. A spool rotating mechanism rotates the spool to automatically let out the film. Roller pairs are provided to feed the film through the film outlet toward a processor unit, which serves to process the exposed film.
Inventors
- 👤 Keisuke Shiba
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 18:53
CPC Classifications
G; G03; G03D; G03D13/00; G03D13/003; G03D13/005; G03B; G03B19/00; G03B19/02; G03B19/04; G03B2219/00; G03B2219/02; G03B2219/04; G03B2219/045
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
321 words
A photographic processing system comprising a photographic film unit and a processor for subjecting said film unit to processing; said photographic film unit being preloaded with an unexposed photographic film, and including: a) an exposure station for exposing said unexposed film; b) a film supplying chamber disposed beside said exposure station for containing said unexposed film wound in a roll with a film leader wound internally; c) a film take-up chamber disposed on a side opposite to said films supplying chamber with respect to said exposure station, in which a spool is contained rotatably, on which spool said film subjected to exposure is wound after passage through an entrance of said film take-up chamber when said spool is rotated in a first direction; d) a shutter and a taking lens disposed in front of said exposure station; e) a film wind-up mechanism for rotating said spool so as to feed said film frame by frame; f) a film outlet formed on said film take-up chamber for passing said film leader toward an outside of said film unit when said spool is rotated in a second direction opposite to said first direction after winding said film leader in said film take-up chamber; and g) a light shielding member provided with said film outlet for shielding an inside of said film take-up chamber from light; and said processor including: A) film unit holding means for being loaded with said film unit; B) a processor unit for processing said exposed film; C) control means for controlling said processor unit; D) spool rotating means for rotating said spool in said film unit loaded in said film unit holding means in said second direction in accordance with an output from said control means; and E) film transporting means for transporting said film leader to said processor unit in accordance with an output from said control means, said film leader being let out of said film outlet.
Claim 2
Dependent Claim
321 words
A photographic processing system comprising a photographic film unit and a processor for subjecting said film unit to processing; said photographic film unit being preloaded with an unexposed photographic film, and including: a) an exposure station for exposing said unexposed film; b) a film supplying chamber disposed beside said exposure station for containing said unexposed film wound in a roll with a film leader wound internally; c) a film take-up chamber disposed on a side opposite to said films supplying chamber with respect to said exposure station, in which a spool is contained rotatably, on which spool said film subjected to exposure is wound after passage through an entrance of said film take-up chamber when said spool is rotated in a first direction; d) a shutter and a taking lens disposed in front of said exposure station; e) a film wind-up mechanism for rotating said spool so as to feed said film frame by frame; f) a film outlet formed on said film take-up chamber for passing said film leader toward an outside of said film unit when said spool is rotated in a second direction opposite to said first direction after winding said film leader in said film take-up chamber; and g) a light shielding member provided with said film outlet for shielding an inside of said film take-up chamber from light; and said processor including: A) film unit holding means for being loaded with said film unit; B) a processor unit for processing said exposed film; C) control means for controlling said processor unit; D) spool rotating means for rotating said spool in said film unit loaded in said film unit holding means in said second direction in accordance with an output from said control means; and E) film transporting means for transporting said film leader to said processor unit in accordance with an output from said control means, said film leader being let out of said film outlet.
Claim 3
Dependent Claim
43 words
A photographic processing system as defined in claim 1, wherein said photographic film unit further includes a rewind preventing means for preventing said spool from rotating in said second direction, and wherein said processor further includes means for incapacitating said rewind preventing means.
Claim 4
Dependent Claim
72 words
A photographic processing system as defined in claim 2, wherein said spool rotating means of said processor includes: a first motor whose rotation is controlled by said control means; a shaft mounted on said first motor for transmitting rotation of said first motor to said spool; and means for shifting said shaft in an axial direction to connect said shaft with said spool in accordance with an output of said control means.
Claim 5
Dependent Claim
55 words
A photographic processing system as defined in claim 3, wherein said film transporting means of said processor includes: a roller pair for transporting said film let out of said film outlet toward said processor unit; and a second motor for rotating said roller pair, rotation of said second motor being controlled by said control means.
Claim 6
Dependent Claim
24 words
A photographic processing system as defined in claim 4, wherein said film unit holding means is loaded with one film unit at one time.
Claim 7
Dependent Claim
44 words
A photographic processing system as defined in claim 4, wherein said film unit holding means is loaded with a plurality of film units vertically lapped one over another in a state horizontally laying on a rear surface of said film units and said spool.
Claim 8
Dependent Claim
40 words
A photographic processing system as defined in claim 4, wherein said processor further includes a film splice device for splicing a film trailer of said film let out of said film unit to a film leader of a following film.
Claim 9
Dependent Claim
36 words
A photographic processing system as defined in claim 4, wherein said processor further includes a film splice device for splicing said film leader of said film let out of said film unit to a leader sheet.
Claim 10
Dependent Claim
25 words
A photographic processing system as defined in claim 8, wherein said leader sheet is spliced respectively with two strips of film in a parallel arrangement.
Claim 11
Dependent Claim
25 words
A photographic processing system as defined in claim 4, wherein said spool rotating means rotates a wind-up dial of said wind-up mechanism in contact therewith.
Claim 12
Dependent Claim
91 words
A photographic processing system as defined in claim 6, wherein said processor further includes: receiving means formed in a downward vicinity of said film unit holding means for placing said film unit after letting out said film from said film unit; a film unit transporting member slidably mounted in the vicinity of a bottom of said film unit holding means for moving a lowest of said plurality- of film units toward said receiving means; and sliding means for sliding said transporting member in accordance with an output from said control means.
Claim 13
Dependent Claim
104 words
A processor for subjecting a lens-fitted photographic film unit in which rotation of a spool in a film take-up chamber in a second direction opposite to a first direction for winding an exposed photographic film lets out said exposed film to an outside through a film outlet formed on said film take-up chamber, said processor comprising: film unit holding means for being loaded with said film unit; spool rotating means for rotating said spool in said film unit loaded in said film unit holding means in said second direction; and a processor unit for processing said exposed film let out of said film outlet.
Claim 14
Dependent Claim
104 words
A processor for subjecting a lens-fitted photographic film unit in which rotation of a spool in a film take-up chamber in a second direction opposite to a first direction for winding an exposed photographic film lets out said exposed film to an outside through a film outlet formed on said film take-up chamber, said processor comprising: film unit holding means for being loaded with said film unit; spool rotating means for rotating said spool in said film unit loaded in said film unit holding means in said second direction; and a processor unit for processing said exposed film let out of said film outlet.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-09-15 | 1996-03-16 | 1996-09-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-09-15 | 2000-03-16 | 2000-09-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-09-15 | 2004-03-16 | 2004-09-15 | $7700.00 | Window Closed / Lapsed |