US3636847A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic film sensitivity setting device
Assignee: Nikon Corp
•
Filing: 1970-11-17
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Granted: 1972-01-25
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Expires: 1990-11-17
Abstract
Abstract An automatic film sensitivity setting device for a camera using a film container having at its periphery signal means representing the sensitivity of a self-contained film, and providing a sensing member for an exposure meter within the camera connectable to said signal means. When the film container is mounted on the camera, the film sensitivity of the film container is introduced into the exposure meter.
Inventors
- 👤 Shigeo Akasaka
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 00:51
CPC Classifications
G; G03; G03B; G03B17/00; G03B17/28; G03B17/30; G03B7/00; G03B7/24; G03B2206/00; G03B2206/008
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
436 words
An automatic film sensitivity setting device for a camera using an interchangeable film magazine and introducing the film sensitivity of the film in said film magazine into an exposure measuring device in interlocking relation with the loading operation of the magazine to the camera body, which device comprises; 1. signal means formed at the periphery of the film magazine and representing the sensitivity of the film therein; 2. a sensing member movably mounted relatively to the camera body for contacting said signal means when the film magazine is loaded on the camera body, said sensing member being connected to the exposure measuring device so as to introduce the film sensitivity into the exposure measuring device upon contacting with said signal means; 3. means for moving said sensing member including a shiftable member engageable with the wall of the film magazine, said moving means being moved from its initial position to its second position by the film magazine when the film magazine is loaded; 4. a first resilient member provided between said moving means and the camera body for returning said moving means to said initial position when the film magazine is unloaded, said first resilient member accumulating a returning force in accordance with the movement of said moving means which is moved from said initial position to said second position; 5. a second resilient member provided between the sensing member and said moving means for driving the sensing member to said signal means, said second resilient member accumulating a driving force in accordance with the movement of said moving means which is moved from said initial position to said second position; and 6. a locking member biased toward the sensing member for locking the sensing member at a starting position in which the sensing member is disengaged from said signal means and unlocking the sensing member by means of the movement of the film magazine when said signal means reaches within the path of the movement of the sensing member; whereby, when said moving means is moved from said initial position to said second position, said signal means reaches within the path of the movement of the sensing member and said locking member releases the locking of the sensing member and then the sensing member is moved from said starting position to said signal means by means of said driving force of said second resilient member so as to come into collision with said signal means, thereafter, the sensing member is returned to said starting position by means of the movement of said moving means which is moved from said second position to said initial position.
Claim 2
Dependent Claim
436 words
An automatic film sensitivity setting device for a camera using an interchangeable film magazine and introducing the film sensitivity of the film in said film magazine into an exposure measuring device in interlocking relation with the loading operation of the magazine to the camera body, which device comprises; 1. signal means formed at the periphery of the film magazine and representing the sensitivity of the film therein; 2. a sensing member movably mounted relatively to the camera body for contacting said signal means when the film magazine is loaded on the camera body, said sensing member being connected to the exposure measuring device so as to introduce the film sensitivity into the exposure measuring device upon contacting with said signal means; 3. means for moving said sensing member including a shiftable member engageable with the wall of the film magazine, said moving means being moved from its initial position to its second position by the film magazine when the film magazine is loaded; 4. a first resilient member provided between said moving means and the camera body for returning said moving means to said initial position when the film magazine is unloaded, said first resilient member accumulating a returning force in accordance with the movement of said moving means which is moved from said initial position to said second position; 5. a second resilient member provided between the sensing member and said moving means for driving the sensing member to said signal means, said second resilient member accumulating a driving force in accordance with the movement of said moving means which is moved from said initial position to said second position; and 6. a locking member biased toward the sensing member for locking the sensing member at a starting position in which the sensing member is disengaged from said signal means and unlocking the sensing member by means of the movement of the film magazine when said signal means reaches within the path of the movement of the sensing member; whereby, when said moving means is moved from said initial position to said second position, said signal means reaches within the path of the movement of the sensing member and said locking member releases the locking of the sensing member and then the sensing member is moved from said starting position to said signal means by means of said driving force of said second resilient member so as to come into collision with said signal means, thereafter, the sensing member is returned to said starting position by means of the movement of said moving means which is moved from said second position to said initial position.
Claim 3
Dependent Claim
53 words
a sensing member movably mounted relatively to the camera body for contacting said signal means when the film magazine is loaded on the camera body, said sensing member being connected to the exposure measuring device so as to introduce the film sensitivity into the exposure measuring device upon contacting with said signal means;
Claim 4
Dependent Claim
53 words
a sensing member movably mounted relatively to the camera body for contacting said signal means when the film magazine is loaded on the camera body, said sensing member being connected to the exposure measuring device so as to introduce the film sensitivity into the exposure measuring device upon contacting with said signal means;
Claim 5
Dependent Claim
54 words
A device according to claim 1, further comprising an elastic member provided at the camera body having energy to return the locking member to its locking position as the film magazine is removed from the camera body, and after the removal of the film magazine, to retain the locking member at its locked position.
Claim 6
Dependent Claim
42 words
A device acCording to claim 1, further comprising a connecting member provided reciprocatingly at the camera body and contactably to the locking member and the film magazine so as to transmit the loading operation of the film magazine to the locking member.
Claim 7
Dependent Claim
41 words
means for moving said sensing member including a shiftable member engageable with the wall of the film magazine, said moving means being moved from its initial position to its second position by the film magazine when the film magazine is loaded;
Claim 8
Dependent Claim
41 words
means for moving said sensing member including a shiftable member engageable with the wall of the film magazine, said moving means being moved from its initial position to its second position by the film magazine when the film magazine is loaded;
Claim 9
Dependent Claim
56 words
a first resilient member provided between said moving means and the camera body for returning said moving means to said initial position when the film magazine is unloaded, said first resilient member accumulating a returning force in accordance with the movement of said moving means which is moved from said initial position to said second position;
Claim 10
Dependent Claim
56 words
a first resilient member provided between said moving means and the camera body for returning said moving means to said initial position when the film magazine is unloaded, said first resilient member accumulating a returning force in accordance with the movement of said moving means which is moved from said initial position to said second position;
Claim 11
Dependent Claim
67 words
A device according to claim 1, wherein said shiftable means comprises a hook portion which moves the locking member to a position to release it from the locking of the sensing member when said signal means is located within the path of the movement of the sensing member and which retains the locking member at said position while the film magazine is loaded on the camera body.
Claim 12
Dependent Claim
145 words
A device according to claim 1, wherein said signal means is formed in the shape crossing the path of the movement of the sensing means on the film magazine wall which faces in the loading direction of the film magazine; said shiftable member has a rack and is mounted for reciprocating movement; and said moving means further comprises a movable member engageable with the sensing member for returning the sensing member to said starting position, moved reciprocatingly in the moving direction of the sensing member and connected with one end of the first resilient member and with one end of the second resilient member, transmitting means for transmitting the movement of said shiftable member to said movable member, including a pinion in mesh with said rack, a wheel connected to said pinion and flexible means wound around said wheel and connected to said movable member.
Claim 13
Dependent Claim
51 words
a second resilient member provided between the sensing member and said moving means for driving the sensing member to said signal means, said second resilient member accumulating a driving force in accordance with the movement of said moving means which is moved from said initial position to said second position; and
Claim 14
Dependent Claim
51 words
a second resilient member provided between the sensing member and said moving means for driving the sensing member to said signal means, said second resilient member accumulating a driving force in accordance with the movement of said moving means which is moved from said initial position to said second position; and
Claim 15
Dependent Claim
163 words
a locking member biased toward the sensing member for locking the sensing member at a starting position in which the sensing member is disengaged from said signal means and unlocking the sensing member by means of the movement of the film magazine when said signal means reaches within the path of the movement of the sensing member; whereby, when said moving means is moved from said initial position to said second position, said signal means reaches within the path of the movement of the sensing member and said locking member releases the locking of the sensing member and then the sensing member is moved from said starting position to said signal means by means of said driving force of said second resilient member so as to come into collision with said signal means, thereafter, the sensing member is returned to said starting position by means of the movement of said moving means which is moved from said second position to said initial position.
Claim 16
Dependent Claim
163 words
a locking member biased toward the sensing member for locking the sensing member at a starting position in which the sensing member is disengaged from said signal means and unlocking the sensing member by means of the movement of the film magazine when said signal means reaches within the path of the movement of the sensing member; whereby, when said moving means is moved from said initial position to said second position, said signal means reaches within the path of the movement of the sensing member and said locking member releases the locking of the sensing member and then the sensing member is moved from said starting position to said signal means by means of said driving force of said second resilient member so as to come into collision with said signal means, thereafter, the sensing member is returned to said starting position by means of the movement of said moving means which is moved from said second position to said initial position.
Claim 17
Dependent Claim
158 words
An automatic film sensitivity setting device of the class described, comprising: sensing means mounted for movement relatively to a camera body for engaging signal means on a film magazine when the same is loaded into the camera body, said signal means indicating the sensitivity of film in the magazine and the sensing means being connected to an exposure measuring device so as to introduce the film sensitivity into said exposure measuring device upon loading of the magazine, a member slideably mounted on said camera body for movement by the magazine when the same is loaded, means accumulating energy upon shifting of said slidable member by loading the magazine, and retaining means normally retaining said sensing means in a first position and being operable by the magazine being loaded to release said sensing means, said sensing means including a detector engaging said signal means when the magazine is loaded to detect the sensitivity of the film in the magazine.
Claim 18
Dependent Claim
158 words
An automatic film sensitivity setting device of the class described, comprising: sensing means mounted for movement relatively to a camera body for engaging signal means on a film magazine when the same is loaded into the camera body, said signal means indicating the sensitivity of film in the magazine and the sensing means being connected to an exposure measuring device so as to introduce the film sensitivity into said exposure measuring device upon loading of the magazine, a member slideably mounted on said camera body for movement by the magazine when the same is loaded, means accumulating energy upon shifting of said slidable member by loading the magazine, and retaining means normally retaining said sensing means in a first position and being operable by the magazine being loaded to release said sensing means, said sensing means including a detector engaging said signal means when the magazine is loaded to detect the sensitivity of the film in the magazine.
Claim 19
Dependent Claim
52 words
An automatic film sensitivity setting device according to claim 6, wherein means are provided to return said sensing means and said slidable member to their original positions, and said retaining means to a position to retain said sensing means in original position, when the film magazine is unloaded from the camera body.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-01-24 | 1975-07-26 | 1976-01-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-01-24 | 1979-07-26 | 1980-01-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-01-24 | 1983-07-26 | 1984-01-25 | $7700.00 | Window Closed / Lapsed |