DE629025C - Spoolless roll film cassette - Google Patents

Spoolless roll film cassette

Info

Publication number
DE629025C
DE629025C DEL86095D DEL0086095D DE629025C DE 629025 C DE629025 C DE 629025C DE L86095 D DEL86095 D DE L86095D DE L0086095 D DEL0086095 D DE L0086095D DE 629025 C DE629025 C DE 629025C
Authority
DE
Germany
Prior art keywords
cassette
guide springs
springs
film
guide
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.)
Expired
Application number
DEL86095D
Other languages
German (de)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Publication date
Priority to DEL86095D priority Critical patent/DE629025C/en
Application granted granted Critical
Publication of DE629025C publication Critical patent/DE629025C/en
Expired legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03BAPPARATUS 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
    • G03B17/00Details of cameras or camera bodies; Accessories therefor
    • G03B17/28Locating light-sensitive material within camera
    • G03B17/30Locating spools or other rotatable holders of coiled film

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Impression-Transfer Materials And Handling Thereof (AREA)

Claims (1)

Gegenüber den bekannten spulenlosen Rollfilmkassetten mit im Innern angeordneten, sich an den Filmwickel anschmiegeiiden Leitfedern, kennzeichnet sich die Kassette nach der Erfindung dadurch, daß die sich aneinanderreihenden Leitfedern an die Kassetteninnenwandung angelenkt sind und je unter dem Einfluß einer Hilfsfeder stehen, die jeweils nahe der Anlenkstelle zwischen der Kassettenwandung und der zugehörigen Leitfeder liegt. Dadurch wird eine große Feinfühligkeit der Leitfedern erzielt und deren genaue Anpassung an die jeweiligen FiImeigenschaften ermöglicht, um eine glatte und sichere Einrollung, herbeizuführen. Die federnde Abstützung gestattet hierbei, die Leitfedern selbst sehr schwach zu halten, so daß diese äußerst nachgiebig sind, wodurch wie-. derum die Einrollung gefördert wird.Compared to the well-known reelless roll film cassettes with arranged inside, The cassette is identified by the guide springs clinging to the film roll of the invention in that the lined up guide springs on the inner wall of the cassette are hinged and are each under the influence of an auxiliary spring, each close to the pivot point between the Cassette wall and the associated guide spring lies. This creates a great sensitivity of the guide springs achieved and their precise adaptation to the respective film properties allows to bring about a smooth and safe curl. The resilient one Support allows this to keep the guide springs themselves very weak, so that these are extremely resilient, which means how-. which promotes curling. Auf der Zeichnung ist ein. Ausführungsbeispiel einer in der erfindungsgemäßen Weise mit Leitfedern ausgestatteten Rollfilmkassette schematisch im' Schnitt veranschaulicht.On the drawing is a. Embodiment one in the manner according to the invention with guide springs equipped roll film cassette schematically illustrated in 'section. Es sind drei Leitfedern ν vorgesehen, die bei ir gelenkig über die Kassettenwand Ii geeignet verteilt befestigt sind und unter dem Einfluß von Druckfedern* stehen/There are three guide springs ν , which are attached in an articulated manner over the cassette wall Ii at ir and are under the influence of compression springs * / Die Anordnung der Leitfedern und deren Führung ist jeweils derart, daß die FiImleitung durch die einzelnen Federn unterstützt wird, ohne daß unzulässige Drücke oder Reibungswiderstände der Filmeinrollung entgegengesetzt werden.The arrangement of the guide springs and their leadership is such that the FiImleitung is supported by the individual springs without excessive pressures or frictional resistances of the film roll are opposed. Ρλϊεντα ν s i'K u ch :Ρλϊεντα ν s i'K u ch: Spulenlose Rollfilmkassette mit im Innern angeordneten, sich an den Filmwickel anschmiegenden Leitfedern, dadurch gekennzeichnet, daß die sich aneinanderreihenden Leitfedern an die Kassetteninnenwandung angelenkt sind und je unter dem Einfluß einer Hilfsfeder stehen, die jeweils nahe der Anlenkstelle zwischen der Kassettenwandung und der Außenseite der zugehörigen Leitfeder liegt.Spoolless roll film cassette with arranged inside to attach to the film reel clinging guide springs, characterized in that the lined up Guide springs are hinged to the inner wall of the cassette and are each under the influence of an auxiliary spring, each close to the articulation point between the cassette wall and the Outside of the associated lead spring lies. Hierzu ι Blatt ZeichnungenFor this purpose ι sheet of drawings
DEL86095D Spoolless roll film cassette Expired DE629025C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEL86095D DE629025C (en) Spoolless roll film cassette

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEL86095D DE629025C (en) Spoolless roll film cassette

Publications (1)

Publication Number Publication Date
DE629025C true DE629025C (en) 1936-04-21

Family

ID=7286026

Family Applications (1)

Application Number Title Priority Date Filing Date
DEL86095D Expired DE629025C (en) Spoolless roll film cassette

Country Status (1)

Country Link
DE (1) DE629025C (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2469008A (en) * 1944-09-28 1949-05-03 Simmon Brothers Inc Roll film camera with detachable magazine
DE1099341B (en) * 1959-04-22 1961-02-09 Kodak Ag Photographic camera
US3282521A (en) * 1962-11-02 1966-11-01 Telefunken Patent Tape reel threading means
US3356311A (en) * 1965-03-03 1967-12-05 Agfa Gevaert Ag Receptacle for roll film
DE1276358B (en) * 1962-11-05 1968-08-29 Usines Gustave Staar S A Cassette for storing an audio tape

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2469008A (en) * 1944-09-28 1949-05-03 Simmon Brothers Inc Roll film camera with detachable magazine
DE1099341B (en) * 1959-04-22 1961-02-09 Kodak Ag Photographic camera
US3282521A (en) * 1962-11-02 1966-11-01 Telefunken Patent Tape reel threading means
DE1276358B (en) * 1962-11-05 1968-08-29 Usines Gustave Staar S A Cassette for storing an audio tape
US3356311A (en) * 1965-03-03 1967-12-05 Agfa Gevaert Ag Receptacle for roll film

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