DD229512A1 - PHOTOGRAPHIC CAMERA WITH DIVIDED ROLLING CHAMBER - Google Patents

Abstract

In a photographic camera with a take-up reel designed for autonomous detection of the film leader, on which at least one friction facing resiliently erectable to the inner wall of a hinged Aufwickelkammer, the Aufwickelkammer (2) independently of other camera parts against a closing spring (14) hinged hinged chamber part ( 5) with closed Kamerarueckwand (13) hidden Oeffnungshandhabe (17). Fig. 1

Description

V23 PSNTACOiM DRSSBfJt Dresden, December 7, 1984

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Title of the invention

Photographic camera with divided rewinding chamber

A field of application of the invention

The invention relates to a photographic camera having a Aufwiekelspule formed for independently detecting the film leader, which has at least one friction lining which can be raised resiliently to the inner wall of a hinged Aufwickelkammer.

Characteristic of known technical solutions

Hinged take-up compartments have the advantage that the film leader is light, i. in particular without manual threading e.g. in a guide channel, can be placed in the area of the take-up reel. According to a known arrangement, a hinged part of the winding-up chamber is connected in a gearing manner to the rear wall of the camera which can also be opened (DE-AS 1288905). Therefore, when closing the folding camera part inevitably follows the rear wall of the camera and obstructs the observation of the position of the film leader and, if necessary, its necessary manual correction relative to the engaging in the film perforation sprocket.

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Purpose of the invention

The invention aims a functionally reliable insertion of the film leader in the take-up with improved ease of use for the camera user.

Explanation of the essence of the invention

The object of the invention is a suitable for the aforementioned genus of cameras Aufwickelkainmer with a loading of the film facilitating hinged chamber part. According to the invention this is achieved in that the Aufwickelkaimner has an independently of other camera parts against a closing spring hinged openable Kauimerteil with covered camera rear wall hidden opening handle. The particular advantage of this arrangement is that the hinged chamber part can be placed on the film leader with the camera rear wall completely open. According to an expedient embodiment, the hinged chamber part has a protruding beyond the teeth of the Transp'ortwaize extension, which is provided with a recess which allows the passage of the film perforation detecting teeth of the toothed drum.

Embodiment of the invention

The invention is explained with reference to an illustrated and described embodiment. 1 shows a camera with an open winding chamber and FIG. 2 shows the plan view of FIG. 1.

In a partially illustrated camera body 1, the cylindrical winding chamber 2 is provided, in which the take-up reel 4 is mounted with its curved springs 8 about the axis 3. On the vaults of the feathers 8

are grids) 9 attached. The winding chamber 2 can be closed by the pivotable about the shaft 10 rear wall 13. The rotatably mounted toothed drum 11 projects with its teeth into the perforation of the film 12. The take-up chamber 2 is provided with a hinged chamber part 5, which is pivotable about the shaft 6. At the chamber part 5, the handle 7 is arranged, which allows a manual pivoting of the chamber part 5 independently of other camera parts. A closing spring 14 seeks to hold the chamber member 5 in the pressed against the film 12 position. The Kamnerteil 5 also has an extension 15, in which the recess 16 is incorporated. This recess 16 allows the passage of the film perforation detecting teeth of the toothed drum 11th

The operation of this arrangement is as follows:

When inserting a film 12 into a camera of this type, the film leader must be placed over the sprocket 11 to the take-up 2. To facilitate this, the chamber part 5 on the handle 7 is detected after opening the rear and 13 and against the closing spring 14-on folded, so that the Aui'7-ri disgusting spool 4 is exposed. The photographer can now pull the beginning of the film 12 over the friction linings 9 and engage the perforation of the film with the sprocket 11, after the film 12 has assumed this initial position, the Kainmerteil 5 is closed. In this case, the film 12 is pressed against the friction linings 9, and the recess 16 lays over the film perforation penetrating teeth of the toothed drum 11. In this position, the folding chamber part 5 is held by the closing spring 14, whereby the initial position of the film 12 is fixed. The photographer can check the proper position of the film leader and, if necessary, through unrestricted access to the

Correct the movie.

After closing the rear wall 13, the camera is operationally reliable. At the beginning of film transport, the film 12 pushed into the winding chamber 2 by the toothed drum 11 is wound on the take-up reel 4 by the friction linings 9.

Claims (2)

Srfindungsanspruch 1. Photographic camera with a trained for independent detection of the Pilmanfanges take-up reel, which has at least one resiliently erectable to the inner wall of a hinged Aufwickelkanimer friction lining, characterized in that the Aufwickelkammer (2) independently of other camera parts against a closing spring (14) hinged hinged chamber part ( 5) with the camera rear wall (13) concealed opening handle (17). 2. Aufwickelkammer according to item 1, characterized in that the hinged chamber part (5) has an over the teeth of the film transport roller (11) projecting extension (15) which is provided with a recess (16) which the passage of the perforation the film (12) detecting teeth of the film transport roller (11) allowed. - For this 1 sheet drawing -