DE2535280A1 - FILM CASSETTE WITH STORAGE AND WINDING CHAMBER CONNECTED BY A BAR - Google Patents
FILM CASSETTE WITH STORAGE AND WINDING CHAMBER CONNECTED BY A BARInfo
- Publication number
- DE2535280A1 DE2535280A1 DE19752535280 DE2535280A DE2535280A1 DE 2535280 A1 DE2535280 A1 DE 2535280A1 DE 19752535280 DE19752535280 DE 19752535280 DE 2535280 A DE2535280 A DE 2535280A DE 2535280 A1 DE2535280 A1 DE 2535280A1
- Authority
- DE
- Germany
- Prior art keywords
- film
- web
- transport
- cassette
- storage
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B17/00—Details of cameras or camera bodies; Accessories therefor
- G03B17/28—Locating light-sensitive material within camera
- G03B17/30—Locating spools or other rotatable holders of coiled film
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Details Of Cameras Including Film Mechanisms (AREA)
- Photographic Developing Apparatuses (AREA)
Description
fcibr ι/λκ/'-ϊλ/Tcciicr'UACT Dresaen, am 29. JuIi 1975fcibr ι / λκ / '- ϊλ / Tcciicr'UACT Dresaen, on July 29, 1975
MIT BESCHRÄNKTER HAFTUNGLIMITED LIABILITY
Filmkassette mit durch einen Steg verbundener Vorrats- und AufwickelkammerFilm cassette with supply and take-up chamber connected by a web
Die Erfindung betrifft eine Filmkassette mit Vorrats- und Aufwickelkammer für mit einer Transportperforation versehenem Film sowie mit einem beide Kammern verbindenden Steg, dessen Vorderseite der Rückwand als Filmandruckfläche ausgebildet ist·The invention relates to a film cassette with a storage and take-up chamber for a film cassette provided with a transport perforation Film as well as with a web connecting both chambers, the front side of which is designed as a film pressure surface, the rear wall is·
Bei bekannten Filmkassetten dieser Art ist in der Aufwickelkammer eine Aufwickelspule gelagert, die mit einem kameraseitigen Transportmechanismus über eine Friktion lösbar kuppelbar ist, und ist der eingelegte Film mit einer Steuerperforation versehen, die durch den Tastetift einer Sperrvorrichtung für den Transportmechanismus abtastbar ist. Die Anordnung sowohl einer Transportvorrichtung als auch einer Sperrvorrichtung ist aufwendig. Zum Zwecke des vereinfachten Transportierens des Filmes durch einen im Bereich des Steges arbeitenden Greifer in stets gleichgroßen Schritten ist bereits vorgeschlagen worden, einen den Steg durchdringenden Transport schlitz anzuordnen· Bei Kameras, deren Rückwand ein Schaufenster zum Beobachten von Markierungen z. B. auf der Kassette aufweist, ist infolgedessen eine ungewollte Zusatzbelichtung des Filmes nicht auegeschlossen.In known film cassettes of this type, a take-up reel is mounted in the take-up chamber, which is connected to a camera-side Transport mechanism can be detachably coupled via friction, and the inserted film is provided with a control perforation, which is activated by the key pin of a locking device can be scanned for the transport mechanism. The arrangement of both a transport device and a Locking device is complex. For the purpose of simplified Transporting the film through one in the area of the web working gripper in steps of the same size has already been proposed, one that penetrates the web To arrange transport slot · With cameras, their back wall a shop window for observing markings e.g. B. has on the cassette, is an unwanted additional exposure as a result of the film are not excluded.
Bei einer weiteren bekannten Filmkassette wird der Film auf der der Rückwand der Kamera zugewendeten Rückseite des Steges der Kassette geführt, wobei in eine Vertiefung des In a further known film cassette, the film is guided on the rear side of the web of the cassette facing the rear wall of the camera
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Steges ein Transportstift einfallen kann. Auch in diesem Falle ist bei Kameras, deren Rückwände ein !Schaufenster aufweisen, die Gefahr von ungewollten Zusatzbelichtungen gegeben.Web can come up with a transport pin. Also in this The trap is with cameras whose back walls are a shop window have the risk of unwanted additional exposures.
Aufgabe der Erfindung ist eine verbesserte Gestaltung von Kassetten für Greifertransport des Filmes, um die Lichtsicherheit zu erhöhen.The object of the invention is an improved design of Cassettes for gripper transport of the film in order to increase the light security.
Erfindungsgemäß wird das dadurch erreicht, daß der Steg in der dem Film zugewendeten Vorderseite eine sich in Transportrichtung des Filmes erstreckende Transportvertiefung aufweist, deren Tiefe t geringer als die Dicke d des Steges und dessen Länge mindestens so groß ist wie der Abstand c zweier aufeinander folgender Transportlöcher der Transportperforation des Filmes« According to the invention this is achieved in that the web in the front side facing the film extends in the direction of transport the film has extending transport recess, the depth t less than the thickness d of the web and the length of which is at least as great as the distance c between two successive transport holes in the transport perforation of the film «
Die Erfindung ist an einem dargestellten und beschriebenen Ausführungsbeispiel erläutert. Es zeigenThe invention is explained using an illustrated and described exemplary embodiment. Show it
Fig. 1 die Seitenansicht einer erfindungs gemäß en Kassette,Fig. 1 is a side view of a fiction according to en cassette,
Fig. 2 die Vorderseite der Kassette,Fig. 2 the front of the cassette,
Fig. 3 die Rückseite der Kassette undFig. 3 shows the back of the cassette and
Fig. 4 den Schnitt entlang der Linie A-B gemäß Fig. 2.FIG. 4 shows the section along the line A-B according to FIG. 2.
Die Filmkassette (vgl. Fig. 1) besteht aus der Vorratskammer 1 und der Aufwiokelkammer 2, die beide durch den Steg 3 starr verbunden sind. In Transport richtung des Filmes ist im Steg 3 eine Transport vertiefung 6 vorgesehen (vgl. Fig. 2), deren Tiefe t kleiner ist als die Dicke d des Steges. AufThe film cassette (see. Fig. 1) consists of the storage chamber 1 and the winding chamber 2, both through the web 3 are rigidly connected. In the transport direction of the film, a transport recess 6 is provided in the web 3 (see. Fig. 2), whose depth t is smaller than the thickness d of the web. on
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der Rückseite des Steges 3 sind Rippen 7 vorgesehen. Diese Rippen 7 dienen zur Versteifung des Steges 3.the back of the web 3 ribs 7 are provided. These ribs 7 serve to stiffen the web 3.
In der Vorratskammer 1 befindet eich, der spulenlose Vorratswickel des Filmes 4, dessen Anfang in die Aufwickelkammer 2 ragt. Der Film 4 weist Perforationslöcher 5 auf, deren Abstand c entsprechend dem Filmachritt bemessen ist«The storage chamber 1 contains the reelless supply roll of the film 4, the beginning of which goes into the winding chamber 2 protrudes. The film 4 has perforation holes 5, the distance c of which is dimensioned according to the film pitch "
Beim Einsetzen der Kassette in die Kamera ist der Film durch den geschlossenen Steg der Kassette gegenüber der Kamerarückwand vollständig abgedeckt.When the cassette is inserted into the camera, the film is opposite the rear wall of the camera through the closed web of the cassette completely covered.
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Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DD18060974A DD117537A1 (en) | 1974-08-20 | 1974-08-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE2535280A1 true DE2535280A1 (en) | 1976-03-04 |
Family
ID=5497006
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19757525003 Expired DE7525003U (en) | 1974-08-20 | 1975-08-07 | FILM CASSETTE WITH STORAGE AND WINDING CHAMBER CONNECTED BY A BAR |
| DE19752535280 Pending DE2535280A1 (en) | 1974-08-20 | 1975-08-07 | FILM CASSETTE WITH STORAGE AND WINDING CHAMBER CONNECTED BY A BAR |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19757525003 Expired DE7525003U (en) | 1974-08-20 | 1975-08-07 | FILM CASSETTE WITH STORAGE AND WINDING CHAMBER CONNECTED BY A BAR |
Country Status (4)
| Country | Link |
|---|---|
| DD (1) | DD117537A1 (en) |
| DE (2) | DE7525003U (en) |
| FR (1) | FR2282653A1 (en) |
| GB (1) | GB1502160A (en) |
-
1974
- 1974-08-20 DD DD18060974A patent/DD117537A1/xx unknown
-
1975
- 1975-08-07 DE DE19757525003 patent/DE7525003U/en not_active Expired
- 1975-08-07 DE DE19752535280 patent/DE2535280A1/en active Pending
- 1975-08-14 GB GB3391275A patent/GB1502160A/en not_active Expired
- 1975-08-20 FR FR7525772A patent/FR2282653A1/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| GB1502160A (en) | 1978-02-22 |
| DD117537A1 (en) | 1976-01-12 |
| FR2282653A1 (en) | 1976-03-19 |
| FR2282653B3 (en) | 1978-04-07 |
| DE7525003U (en) | 1975-11-20 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| OHJ | Non-payment of the annual fee |