DE2362862A1 - Miniature roll film camera - has compact construction with film compartment fitting to camera body - Google Patents

Abstract

The roll film camera is of compact construction for use with normal miniature film cassettes, built up of a camera body and a film compartment fitting together. The top part of the camera body extends to the back of the film compartment in order to protect the inner face of the lens when the film compartment is removed, and to give a more rigid assembly when it is attached. The film cassette and take-up spool are located within the film compartment with their axes vertical. Interchangeable objectives can be fitted to the objective tube and film transport is effected by a lever on the upper surface of the camera housing.

Description

: ■ 2382862

Rainer Franzmann, 2 Norderstedt 2, Mittelstrasse 24

Norderstedt, December 12th, 73

Roll film camera.
description

The invention relates to a roll film camera with film magazines for Change at a preferential price for the use of 35mm films.

Roll film cameras with film magazines for 35mm film must be compared to other camera systems the requirements listed below are particularly sufficient.

When using film magazines that are fast, changing Occupancy of the roll film camera with 35mm films of different sizes To enable properties, the requirement that the change of the film magazines on the camera housing and the insertion of the 35mm film in the film magazine with easy and simple handling must be possible.

When using 35mm films, the requirement is essential based on the fact that the camera housing and the film magazines one as possible small, compact and therefore easy to carry and light and safe to handle form are supplied.

There are roll film cameras with film magazines for 35mm film known, in which the assignment of the functional parts in the camera housing and in the film magazine is chosen so that the demands for easier and ease of use are not sufficiently met. This occurs especially when the film cartridge and take-up spool are like the Ordinary 35mm camera can be arranged laterally to the film plane. Despite the extraordinary importance of the changing availability von Rollfilmkaineraa with 35mm films of different

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Properties for various photographic tasks represents} there is a lack of technical solutions that adequately meet the requirements arising here.

It is the object of the invention through a suitable assignment of the functional parts in the camera housing and in the film magazine Change of the film magazine on the camera body; inserting the 35mm film into the film magazine and creating a small, compact one Form iron camera housing and film magazine for easy, easy handling to secure.

The solution to the problem is found in that when using Tom Filnua & gazinen with a film unit steering roller, a film drive mechanism, a film cartridge chamber and film winding spools ₉ located behind the film area, the axes of rotation of which are arranged vertically and the upper part of the camera housing with the parts of the Viewfinder device, the film transport device and the contact pin for the electronic film sensitivity control circuit via the film magazine to its rear wall, thereby creating a coupling between the parts of the film transport device in the camera housing and the film, as well as establishing contact between the switching elements of the film sensitivity control circuit in the Camera housing and film magazine can be generated by lowering the respective coupling or contact parts.

Based on the embodiment shown in the figures the invention will be described in more detail below. The illustrations show: Fig. 1 Diagram of camera housing and film magazine Fig. 2 Diagram of opened film magazine Fig. 3 Rear view of the film magazine

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Fig. 4 Top view of the film magazine Fig. 5 Vertical cross-section of the roll film camera Fig. 6 Vertical longitudinal section of the roll film camera Fig. 7 Horizontal section of roll film camera

The roll film camera has a lens mounting base 1, which brings the seat of the lens 2 in such a distance to the film plane, as it is the construction of commercially available interchangeable lenses is equivalent to. A mirror reflex is preferably used as the viewfinder system. Finder system with oscillating mirror 3, focusing screen 4, prism 5 and provide eyepiece tube 6. A slot lock 7 is preferably provided as the lock.

To achieve a compact design dee film magazine 8, at preferably use of commercially available 35mm film cartridges, the 35mm film from the 35mm film cartridge 9 in itself known way via a film deflection roller Io for film transport— shaft 11 and film take-up reel 12 out. This allows cartridge chamber 13 and film take-up reel 12 to save space behind the Film level can be assigned to each other. The axes of rotation of this film-leading Parts are arranged vertically.

By assembling the camera housing 14 and film magazine 8 a shape that approximates the square is achieved in plan. The upper part of the camera housing 14 is up to the rear wall of the film magazine 8 continued. The bottom of the camera body 14 also becomes continued to the rear wall of the film magazine 8. Both measures result in the handling of the camera housing 14 removed film magazine 8 a special protection of the rear parts in the area of the picture window, as well as a sufficient "storage"

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safety. When the film magazine 8 is inserted, the result is a space-saving, compact overall shape of the roll film camera with favorable dimensions for handy use, as well as a special safeguarding of the mechanical coupling of the sound camera housing 14 and the film magazine 8 against the force of separation during handling.

In the upper part of the camera housing 14 are located above the film magazine 8 the parts of the film transport device 15 with a displaceable Pivot 16 and pins 17 for the electronic film sensitivity control circuit. Before inserting the film magazine 8 the pivot pin 16 and the contact pins 17 can be pushed in of the push button 18 can be lifted over the wedges 19, for example. When the push button 18 is released, the pivot pin 16 is lowered into the transport sleeve with gripping gate devices 2o by the springs 21. At the same time, the contact pins 17 sink into the contact sockets 22 of the film magazine 8.

To insert the 35mm film, the film magazine 8 is over the Hinge 23 can be opened. The lower part, side parts and front part of the film magazine housing are το11 constantly rotated away, so that the Cartridge chamber 13 Toll is open and the rest of the film leading Parts can be reached easily. The 35mm film cartridge 9 is placed on the crank gripper 24. Through the guide slot 25, Via the film guide roller lo, the film pressure plate 26, the film transport shaft 11, the small picture film is fed to the film take-up spool 12. The 35mm film can be wrapped around the transport sleeve 2o after hanging with the hinged bracket 27 or a crank pin. The cranking back of the 35mm film is done with the Crank gripper 24 and Kla.ppbügel_der_Patronenkammer 28.

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The film speed is with the slide button 29 or a Adjustment wheel on the film magazine 8 adjustable, whereby the electrical value of an electronic switching element can be changed, which can be designed as an adjustable electrical resistor. The electronic switching element is via the contact pins 17 can be switched into the electronic circuit for exposure measurement in the camera housing 14, whereby the film sensitivity set in each case can be taken into account in the exposure measurement.

The image window 3o of the film magazine 8 is in a known manner lockable with a slide. In the film magazine 8 there is an in Image counter operating in a known manner with viewing window 31. Memos can be inserted behind the transparent viewing flap 32.

Sas film magazine 8 is held by holding cams and spring-loaded locking hooks, which are movable with the push button 18, firmly coupled to the camera housing.

When the film magazine 8 is removed, the flap 33 can be used to close easily handling replacement of the shim 4 gate can be taken.

The pulled slide of the film magazine 8 can be stored in the Slot 34 in the bottom of the camera housing 14 can be inserted.

By introducing the invention appears given the small and compact overall shape of the roll film camera and its film magazines A space-saving transport and easy handling with frequent changes of the film magazines guaranteed and thus the adaptation to photographic tasks, where the changing availability of the roll film camera with 35mm films of different properties is required, even with 35mm cameras.

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Claims (8)

.fr. 2382862 Rainer Franzmann, 2 Norderstedt 2, Mittelstrasse 24 Norderstedt, December 12th, 1973 roll film camera. Claims 1. Roll film camera ^ especially for 35mm films} thereby characterized) that when using film magazines with a film pulley, a film drive shaft, and a film cartridge chamber and film behind the film level on wi ekelspule, whose axes of rotation are arranged vertically and the upper part of the camera housing with the parts of the Viewfinder device, the film transport device and the contact pins for the electronic film speed control circuit via the film magazine to its rear wall and thereby a coupling between the parts of the film transport device in the camera housing and film magazine, as well making contact between the switching elements of the film sensitivity control circuit in the camera housing and film magazine can be generated by lowering the respective coupling or contact parts. 2. Roll film camera according to claim 1, characterized in that the bottom of the camera housing is continued to the rear wall of the film magazine. 3. Roll film camera according to claim 1, characterized in that the sliding pivot of the film transport device and the sliding contact pins for the electronic FiIm- - 2 " 509826/0447 sensitivity control circuit, by means of a push button and springs are preferably raised or lowered using wedges can. 4. roll film camera according to claim 1, characterized in) that via a hinge lower part arranged in the longitudinal direction; Side parts and front part of the film magazine housing can be folded away are. 5. roll film camera according to claim 1, characterized in that the film cartridge chamber is provided with a guide slot and when opening the film magazine housing the great cross-section the film cartridge chamber is released for inserting the film cartridge. 6. roll film camera according to claim 1, characterized in that the film sensitivity can be adjusted by means of a slide button or adjusting wheel on the film magazine, with the electrical The value of an electronic switch element can be changed, which can preferably be designed as a controllable electrical resistor and via contact pins into the electronic circuit can be switched on for exposure measurement. 7. roll film camera according to claim 1, characterized in that a transport sleeve with hinged bracket or crank pin for the Anwi disgust and a crank gripper with a hinged bracket or crank pin for winding back the 35mm film at the top of the film magazine are arranged. 8. roll film camera according to claim 1, characterized in that the focusing screens of the Torzugireise used single-lens reflex viewfinder system can be exchanged via a flap above the picture window in the rear wall of the camera housing. 509826/0447 • β θ. Roll film camera according to claim _1, characterized in that the pulled slide of the film magazine can be inserted into a special slot in the bottom of the camera housing for storage. 509826/0447