Patent US4074296A successfully refreshed from Google Patents.
US4074296A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Folding camera
Assignee: Fujifilm Holdings Corp
•
Filing: 1976-12-27
•
Granted: 1978-02-14
•
Expires: 1996-12-27
Abstract
Abstract Folding camera in which a lens mount carrying a taking lens assembly may be held in a position for taking photographs by linkage assemblies constituted by sides of a case and associated link rods and pivotal support assemblies each constituted by a flat plate connected to the lens mount and a guide rod which connects the plate to the camera and guides movement thereof when the camera is opened or closed. The case constituting part of the linkage assemblies contains flash control elements and forms a front wall portion of the camera when the camera is folded. The pivotal support assembly elements, being flat or narrow, require only minimum accommodation space in the camera, which is therefore rendered compact and easily transportable when folded.
Inventors
- 👤 Tsuneaki Munakata
- 👤 Makoto Kuboshima
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 07:56
CPC Classifications
G; G03; G03B; G03B17/00; G03B17/02; G03B17/04
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
298 words
Folding camera comprising at least an exposure compartment comprising opaque wall portions and defining an exposure station whereat film material may be exposed; a lens mount carrying at least a taking lens assembly able to focus image-wise light reflected from an external scene onto said film material, and having a first support shaft affixed to a first rear corner portion thereof and a second support shaft affixed to a second rear corner portion thereof; a front opening defined in a forward portion of said camera; a case which has one end pivotally supported in one end portion of said front opening, may be accommodated in said front opening, and may be moved to a first position in which said case extends forwardly from said front opening and to a second position in which said case is accommodated in said front opening; linkage assemblies which connect opposite sides of said case to opposite ends of said second support shaft; pivotal support assemblies which are provided in connection to opposite sides of said lens mount and each of which comprises a long, generally rectangular support plate whose outer end is in pivotal attachment to a side portion of said lens mount, and a guide rod which has one end in pivotal attachment to the inner end of said support plate and whose opposite end is in pivotal attachment to a portion of a side wall of said camera which is near to the rear wall of said camera and which in terms of top-to-bottom dimension of said camera is in a generally central portion of said side wall; wall portions defining slots through which said support plates and said guide rods may move or be accommodated; and side-folding opaque bellows element provided between said exposure station and said lens mount.
Claim 2
Dependent Claim
298 words
Folding camera comprising at least an exposure compartment comprising opaque wall portions and defining an exposure station whereat film material may be exposed; a lens mount carrying at least a taking lens assembly able to focus image-wise light reflected from an external scene onto said film material, and having a first support shaft affixed to a first rear corner portion thereof and a second support shaft affixed to a second rear corner portion thereof; a front opening defined in a forward portion of said camera; a case which has one end pivotally supported in one end portion of said front opening, may be accommodated in said front opening, and may be moved to a first position in which said case extends forwardly from said front opening and to a second position in which said case is accommodated in said front opening; linkage assemblies which connect opposite sides of said case to opposite ends of said second support shaft; pivotal support assemblies which are provided in connection to opposite sides of said lens mount and each of which comprises a long, generally rectangular support plate whose outer end is in pivotal attachment to a side portion of said lens mount, and a guide rod which has one end in pivotal attachment to the inner end of said support plate and whose opposite end is in pivotal attachment to a portion of a side wall of said camera which is near to the rear wall of said camera and which in terms of top-to-bottom dimension of said camera is in a generally central portion of said side wall; wall portions defining slots through which said support plates and said guide rods may move or be accommodated; and side-folding opaque bellows element provided between said exposure station and said lens mount.
Claim 3
Dependent Claim
79 words
Folding camera as claimed in claim 1, which further comprises a lens mount cover means, which is pivotally mounted on a forward end portion of said case, and cover positioning means which holds said cover in a forwardly extended position and out of contact with said lens mount when said case is in said first position, and causes said cover to be laid over the front wall of said lens mount when said case is in said second position.
Claim 4
Dependent Claim
111 words
Folding camera as claimed in claim 2, wherein said cover positioning means comprises levers connecting to said cover and spring elements connecting to said levers and exerting thereon a constant force to cause said levers to move said cover to said forwardly extended position, said levers being uncontacted by other camera elements when said case is in said first position, and being brought into contact with side wall portions of said front opening which cause said levers to be moved counter to the force of said spring elements and move said cover into contact with the front wall of said lens mount when said case is brought to said second position.
Claim 5
Dependent Claim
21 words
Folding camera as claimed in claim 1, wherein said case contains electrical circuit elements for control of a photographic flash system.
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) | 1981-02-13 | 1981-08-15 | 1982-02-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-02-13 | 1985-08-15 | 1986-02-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-02-13 | 1989-08-15 | 1990-02-14 | $7700.00 | Window Closed / Lapsed |