DE657318C - Cassette for cinematographic recording camera - Google Patents

Description

PΛ TE NT Λ NSI ¹ KCC II E:

ι. Cassette for cinematographic recording camera, in which the indexing devices for the film through recesses in a film guide attached to the cassette reach through, characterized in that a locking member (7) on the cassette is attached, which reaches through the film guide and the film perforation in such a situation ensures that after inserting the cassette the indexing organs can intervene without further ado.

2. Cassette according to claim i, characterized in that the locking member (7) in a recess in the cassette located behind the film guide.

3. Cassette according to claim 1 or 2, characterized in that the locking member (7) disengages automatically when the cassette is inserted into the camera.

4. Cassette according to claim 3, characterized in that a on the cassette by a spring (6) carried locking pin (7) is fixed, which is attached to the Camera arranged, on the spring (6) acting inclined surface (8) out of engagement is brought.

1 sheet of drawings

BERLIN ". GKDRUCKI ¹ IN ' T) M *

Claims (1)

in Berliii ^ Triedenau The invention relates to a cassette for cinematographic recording cameras, whose Indexing devices for the film through recesses one attached to the cassette Reach through the film guide. The known cassettes of this type are improved according to the invention in that that a locking member is attached to the cassette that passes through the film guide - to grips and the film perforation in such a position ensures that after the onset of Cassette the indexing organs can intervene easily. This becomes natural the operation is simplified considerably and the risk of damage to the film is prevented. The well-known marker to indicate the correct position of the film tape for the Intervention of the switching element may ensure that the film is correctly inserted into the device itself It is unsuitable for cassettes because it is a setting of the Filmbaiides when inserting the cassette is supposed to be superfluous, which is due to the invention is achieved. As soon as the switching elements engage in the film perforation when the cassette is inserted, the locking member is to be lifted out. The arrangement is expediently made so that the locking member when the cassette is inserted is automatically excavated. The drawing schematically illustrates an exemplary embodiment of the subject matter of the invention on an otherwise known cassette. It shows Fig. Ι the front part of the cassette in side view, Fig. 2 a section along AA in Fig. 1. The film 1 is guided in the interior of the cassette 2 in a manner not shown in detail from a supply reel to a take-up reel. In this way, the film 1 emerges from the cassette 2 at 1 ′, bridges the recess 3 in the cassette body 2 and then runs back into the interior of the cassette 2 through the hinged guide channel. The cassette 2 is now inserted into the recording camera in such a way that the image stage of the camera and the pressure window in the recess 3 of the cassette 2 can lie in front of it. Behind the film guide 4, the cassette body 2 has a recess 5 so that the guide parts 4 are partially exposed. A spring 6 bent at right angles is fastened in the recess 5 on the cassette wall 2 and carries a locking pin 7 which engages through the guide parts 4 into the film perforation. An inclined surface 8 attached to the camera presses the spring 6 to the side when the cassette is inserted into the camera, so that the locking pin 7 disengages and releases the film 1. The indexing elements, which are arranged in the camera and are not shown in detail, come to rest in the recess 5 when the cassette is inserted and can detect the film 1 through the exposed guide parts 4.