DE1950084U - PHOTOGRAPHIC OR KINEMATOGRAPHIC CAMERA WITH A SPRING DRIVE. - Google Patents

Description

RA.359 692 * -9.7.

AGFA-GEVAERT AKTIENGESELLSCHAFT July 7, 1966

10-eh-on

Leverkusen
MF 1006

Photographic or cinematographic camera with a Spring mechanism drive

The innovation concerns a photographic or cinematographer ical camera with a spring mechanism for film transport. Cameras of this type are already known. When the film is being transported, the film to be transported inhibits the spring mechanism so that it does not move at random can expire. However, if the end of the film is reached or the shutter release is not activated when the spring mechanism is under tension If the inserted film is accidentally actuated, the braking effect of the film no longer applies. In this case the fireworks run uninhibited and can thereby the damage parts that interact with it.

The innovation is therefore based on the task of activating the spring mechanism and there is no film in the camera automatically a braking device to prevent a to allow the Fed @ 3? work to take effect too quickly

MF 1006:

This task is solved according to the inflation rate by a Brake device for the spring mechanism controlled by the film. Bach is an embodiment according to the innovation a known per se, a recess in the film pressure plate and / or the film web opposite, provided under spring action lever, the one Carrying brake pad, the brake pad when the lever falls into the recess on one with the spring mechanism engaged brake disc comes to rest. According to another embodiment, the lever can take place of the brake pad have an anchor, with a climbing wheel taking the place of the brake disc.

A display device for the position is expediently provided with the lever and thus with the braking device connected to the braking device and thus for the charging status of the camera, the lever carrying the braking device being positioned in the area of a viewing window can have pivotable display arm with different brands on the camera. But it is also possible .that the braking device; load-bearing levers an in display to be made visible in a viewfinder beam path leverage preferably via a pin-and-slot connection controls.

1006

Further details xrnd advantages of the innovation are explained in more detail with reference to a drawing, pie only I ¹ XgUr shows a plan view of a possible embodiment.

In the drawing are the housing of a camera with 1, the camera back cover with; 2, the pressure plate with 3 »a recess in the pressure plate with 3a, the "Pressure springs for the film pressure plate with 4, a film with 5 lying between the film pressure plate 3 and the film carrier, the film used for transporting the film; 'Perforation wheel with 6, the camera lens with 18 and the viewfinder lenses denoted by 13 and 19. The film transport is effected by a spring mechanism 11, which is known per se and therefore not shown in more detail can be tensioned and releasable after each release of the shutter to the expiration utt-d again after transporting the film 5 by one frame length is lockable. When running the spring mechanism 11 in the sense an arrow 12 is over an interposed gear 10 the perforating wheel 6 is driven. The gearwheel 10 drives one with the other via a further pinion Pinion connected brake disc 9.

The film to be transported brakes while the film is being transported

■ -, "4 .- ■" - ■ MF 1006

the fireworks, so this is not arbitrary ^; can purr quickly. However, if the end of the film is reached, or if the trigger is accidentally actuated when the spring mechanism 11 is tensioned but the film is not inserted, the braking effect of the film ceases and the spring mechanism 11 would run uninhibited. This could damage the spring mechanism or the parts interacting with it. To avoid this disadvantage, a lever 7 is now rotatably mounted around the pivot point 20 and is under the action of a spring 8. The ejade 7b of a lever arm of the lever 7 is in the region of the recess 3a of the film pressure plate 3, but can be in this under the action of Spring 8 only collapse when no film 5 has been inserted into the camera. When the film 5 is inserted, it holds the lever 7 in the position shown in the drawing. A brake pad 7a is provided on the other lever arm of the lever 7. The end 7b cannot fall into the recess 3a, also the brake pad 7a is not in contact with the brake disk 9a. However, if there is no film 5 in the camera, when the end 7b falls into the recess 3a, the brake pad 7a is in contact with the brake disk 9 ' If the spring mechanism 11 is now released to run off, it cannot run off unchecked, but is instead under the action of the spring 8

1006

occurring between brake disc 9 and brake pad 7a Frictional forces are braked so that no damage to the camera can occur.

The new braking device, controlled by the -3FiIm- can also be used as a display device for the charging status of the camera 1 without additional effort, if there is a viewing window 15 in the camera housing is provided and on the lever 7 another tab 7c is molded, which has a colored mark 16 at its end wearing. If there is no film in the camera, it is the brake pad 7a on the brake disc 9, while at the same time the colored mark 16 in the viewing window 15 appears as a symbol for an uncharged camera. But it is also possible to have such a display device to make visible in the viewfinder 13, 19 or to mirror them in them. For this purpose, a further one provided with a display flag 14a and rotatable about the pivot point 21 can be used two-armed lever 14 can be provided, one arm of which engages around a pin 7d of the lever 7 with a slot 14b. Through the pin-and-slot connection 7d, 14b, the lever 14 is rotated when the lever 7 is pivoted in such a way that that his Jahne 14a lies in the viewfinder beam path, if the brake pad 7a rests against the brake disc 9 and thus

- β - "- MF 1006 ^;

there is no film loaded in the camera. Of course you can the lever 7 also for controlling a counter period or a film transport lock if the film is missing or when the end of the film is reached or if the end of the film is incorrectly inserted Film can be used.

Of course, the! Rise in prices is not what has been shown Embodiment limited. So an anchor could take the place of the brake pad 7a and the place step on the brake disc. Besides, that would be Arrangement can also be used on cinema cameras with spring mechanisms.

Claims (6)

- 7 - MF 1006 protection claims. -. "" -. "'" "■: 1. Photographic or cinematographic camera with a spring mechanism drive for the film transport, characterized by one controlled by the film (5) Braking device (7a, 9) for the spring mechanism (11). 2 «Camera according to claim 1, characterized by a known per se, a recess (3a) in the film pressure plate (3) and / or the film web opposite spring-loaded lever (7) »which carries a brake pad (7a), the brake pad (7a) when the lever (7, 7b) falls into the recess (3a) on one with the spring mechanism (11) in engagement stationary brake disc (9) comes into contact. 3.Kamera according to claim ^ 1, characterized by a known, a recess (3a) in the film pressure plate (3) and / or the film web opposite, under spring action lever (7). which carries an armature _} whereby, when the lever (7, 7b) falls into the recess (3a), the armature engages with a climbing gear cooperating with the spring mechanism (11). m 1006 ._ ■ -.- .. '■ 4. Camera according to claims 1 and 2, characterized in that that the brake pad (7a) 'as above Arm is formed on the lever (7). -. 5. Camera according to one of the preceding claims, characterized in that the braking device (7a) carrying lever (7) which can be pivoted into the area of a viewing window (15) on the camera (1) Display arm (7c) with different. Brands (16) having. ".-". ' . '"■ _ .; ■" .- "". 6. Camera according to one of the preceding claims, characterized marked that the the. Brake device (7a) carrying lever (7) in a viewfinder beam path The indicator lever (14) to be made visible, preferably via a pin-and-slot connection (7d, 14b) controls. For this purpose a sheet of drawings.