DE598287C

DE598287C - Cassette for roll film cameras

Info

Publication number: DE598287C
Application number: DEF74039D
Authority: DE
Original assignee: Individual
Current assignee: Individual
Priority date: 1932-09-03
Filing date: 1932-09-03
Publication date: 1934-06-08

Description

Die Erfindung betrifft eine Kassette für Rollfilmkameras mit einem beweglichen Einsatzkörper, welcher beim Gebrauch aus der Kassette heraustritt und dabei den Schichtträger gegen die ScMchtträgerauflagefläche - der Kamera (Fokusebene) drückt. Gemäß einem älteren Patent bildet der Einsatzkörper den Halter für die in die Kassette einzusetzende photographische Platte.
Gegenstand der Erfindung ist nun eine Weiterausbildung dieser Art Kassetten, und zwar besteht das Neue darin, daß bei 'einer Kassette, in welcher in an und für sich bekannter Art Rollfnmspulen gelagert sind, der Einsatzkörper als Fihngleitrahmen ausgebildet ist und dabei den zur Belichtung kommenden Teil des Schichtträgers aus der Kassette heraus in die Fokusebene der Kamera drückt. In der Zeichnung ist ein Ausführungsbeispiel der Erfindung dargestellt, und zwar zeigtThe invention relates to a cassette for roll film cameras with a movable insert body which, during use, protrudes from the cassette and thereby presses the layer support against the support surface of the camera (focal plane). According to an earlier patent, the insert body forms the holder for the photographic plate to be inserted into the cassette.
The subject of the invention is a further development of this type of cassette, and the novelty is that in 'a cassette in which roll-on reels are stored in a type known per se, the insert body is designed as a sliding frame and the part coming for exposure of the layer support pushes out of the cassette into the focal plane of the camera. In the drawing, an embodiment of the invention is shown, namely shows

Abb. ι eine Kamera in Ansicht, teilweise aufgeschnitten,Fig. Ι a camera in view, partially cut open,

Abb. 2 einen Schnitt nach der Linie A-A der Abb. 1 undFig. 2 shows a section along the line AA of Fig. 1 and

Abb. 3 einen Schnitt nach der Linie C-C der Abb. 2.Fig. 3 shows a section along the line CC in Fig. 2.

An einer photographischen Kamera 1 ist eine Rollfilmkassette 2 angesetzt. In dieser sind die Filmspulen 8 und 9 drehbar gelagert, während der bewegliche Einsatzkörper S als Fihngleitrahmen ausgebildet ist, der gleichzeitig Filmgleitrollen 10 und 11 trägt. Der Schichtträger, ein photographischer Rollfilm, beispielsweise KinofiLm, wird von der Spule 8 abgewickelt über den Einsatzkörper 5 und eine Meßwalze 12 geführt und mit dem Kern der Aufwickelspule 9 verbunden.A roll film cassette 2 is attached to a photographic camera 1. In this the film reels 8 and 9 are rotatably supported, while the movable insert body S is designed as a Fihngleitrahmen which carries film slide rollers 10 and 11 at the same time. The support, a photographic roll film, for example KinofiLm, is used by the Coil 8 unwound over the insert body 5 and a measuring roller 12 guided and connected to the core of the take-up reel 9.

Der Einsatzkörper 5 ist mit seitlich an der Kassette gleitenden Schiebern 13 ausgerüstet, die mit außerhalb der Kassette angeordneten Knöpfen 14 verbunden sind. Auf diese Art kann der Einsatzkörper in die Kassette zurückgezogen werden. Zur Verriegelung desselben in dem Kassetteninnern sind an den Schiebern 13 angelenkte Schnapper 15 vorgesehen, die um Bolzen 26 drehbar sind und. in der zurückgezogenen Stellung des Einsatzkörpers 5 mit ihren Nasen 16 hinter die Zwischenwand 17 der Kassette 2 greifen.The insert body 5 is equipped with slides 13 sliding laterally on the cassette, which are connected to buttons 14 located outside the cassette. In this manner the insert body can be withdrawn into the cassette. To lock the same in the interior of the cassette hinged catches 15 are provided on the slides 13, which are rotatable about bolts 26 and. in the retracted position of the insert body 5 grip behind the intermediate wall 17 of the cassette 2 with their lugs 16.

Durch Anheben der Knöpfe 14 werden die Schnapper 15 wieder außer Eingriff gebracht.By lifting the buttons 14, the latches 15 are disengaged again.

Das überschüssige Filmband, das bei dem zurückgezogenen Einsatzkörper 5 vorhanden ist, wird ebenfalls in die Kassette 2 zurückgezogen. Zu diesem Zweck steht die Abwickelspule 8 unter Wirkung einer Torsionsfeder 18, durch welche die Abwickelspule, sobald der Einsatzkörper zurückgezogen wird, um ihre Achse gedreht und dadurch das Filmband in die Kassette 2 hineingezogen wird.The excess film tape that is present on the retracted insert body 5 is also withdrawn into the cassette 2. The supply reel is used for this purpose 8 under the action of a torsion spring 18, through which the supply reel, as soon as the insert body is withdrawn, it is rotated about its axis and thereby the film tape is drawn into the cassette 2.

Die Wirkungsweise der Rollfilmeinrichtung ist folgende:The operation of the roll film device is as follows:

Nachdem das Filmhand in der oben beschriebenen Art von der Abwickelspule 8 nach der Aufwickelspule 9 geführt und mit derselben verbunden ist, kann mittels eines mit der Aufwickelspule in Verbindung stehendenAfter the film hand in the manner described above from the supply reel 8 after the take-up reel 9 is guided and connected to the same, can by means of a with related to the take-up reel

Claims

Button 19. Rotate the same the film tape be wound onto the take-up spool.

The cassette 2 is then connected to the camera 1 and the cassette slide 6 is pulled out and. the insert body 5 released by pivoting the snapper 15, so that by, the action of the springs 4 out of the cassette into the focal plane of the

to camera is moved. As a result, there is the same contact surface for all layers in the camera for use; accordingly they lie in one and the same focal plane. If you continue winding through.

the snap device attached to the measuring drum 12 over which the film tape is guided 20 causes the film tape to lock after each image length.

A graduated disk is also attached to the measuring drum 12 by means of the gears 21 and 22 23 frictionally driven, which shows the number of images already exposed. If the insert body is withdrawn by means of the side buttons 14, it pulls the torsion spring 18 by. Rotating the supply reel 8 the excess film tape back into the interior of the cassette, so that the cassette is closed again by means of the slide can be.

Roll film cassettes with an inserted film slide frame that brings the film into the focal plane presses are, in themselves, known. However, these are intended for plate cameras which the attachment for the layer carrier is not inside the camera, but on the picture window frame the cassette itself.

■ Patent claims:

i. Cassette for RoHSlmkarneras, at which a movable insert body is provided in the cassette, which the Brings the layer carrier of the cassette into the focal plane of the camera, characterized in that that in a known type of roller coils carrying the cassette movable insert body is designed as a film slide frame, which is the part of the in the Cassette housed film presses against the film platen of the camera.

2. Cassette according to claim 1, characterized in that the with springs (4) connected insert bodies with slides sliding on the side of the cassette (13) is equipped, which is connected to buttons (14) arranged outside the cassette are so that the insert body (s) is drawn into the cassette (2) through this can be.

3. Cassette according to claim 1 and 2, characterized in that the movable Film slide frame (5) carries film rolls (10 and 11).

4. Cassette according to claim 1 and 2, characterized in that for locking of the insert body (5) hinged on this snapper (15) in the retracted Position of the insert body with its lugs (16) behind the partition (17) of the cassette (2).

5. Cassette according to claim 1, characterized in that the film tape in on in a known manner over a measuring roller (12) is performed, each after one Image width locks the film tape and shows the number of exposed images.

6. Cassette according to claim 1, characterized in that the supply reel (8) in the cassette is under the action of a torsion spring (18), which when retracted of the insert body (5) in 'the cassette (2), the supply reel (8) rotates around its own axis.

1 sheet of drawings