JPS62249146A - Film cartridge - Google Patents

Abstract

PURPOSE:To obtain the titled cartridge capable of exchanging a film, using a sheet of film most efficiently during the use in the same camera by providing a shade plate on a whole surface near to the exposure surface of the film in the title cartridge. CONSTITUTION:When the film is necessary to be taken out from the camera now in use during photographing, the shade plate 6 is inserted from an inserting inlet 7 of the titled cartridge through the camera body, thereby being taken out the titled cartridge from the camera in such a state that the exposure surface 2 of the film is prevented to be exposed by natural light. Thus, when the remainder film in the film cartridge which is taken out at once is desired to use, the cartridge, as it is, is set in the camera, followed by pulling out the shade plate 6 through the camera body, whereby the film can be used, using the one sheet of film most efficiently, without causing loss of a frame.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a film cartridge for photography;
More specifically, the present invention relates to the structure of a film cartridge in which a light shielding plate is attached to a removable film cartridge.

2. Description of the Related Art Conventionally, this type of film cartridge is shown in FIG. 2. By pulling the film drawer 3 through the drawer rod, the photographed film is taken out along with the photographic paper (not shown), and the next exposure surface is set.

Problems to be Solved by the Invention Normally, this type of film cartridge has film and photographic paper set in it so that photographs can be taken before and after Chiaki. By repeatedly pulling out the film, it is possible to take pictures one after another until the film runs out.

Nowadays, photography has become more diversified, and it is common to take photos in color or monochrome depending on the purpose of the photograph, the subject, etc., and film manufacturers are also taking photos in color or monochrome according to the needs of the market. There are many types available, ranging from high to low % film sensitivity as well as differences. If you want to take photos in such a situation, you should prepare multiple types of film for one camera, or use 4. ! Either you should prepare as many cameras as there are film types for each category, but it is very difficult to prepare a large number of cameras or carry a large number of cameras.
The usual photography method was to prepare multiple types of film for seven cameras.

According to this method of photographing, if you want to take a picture with a different type of film before the film cartridge installed in the camera is fully loaded, the conventional film cartridge described above can be used to remove the exposed surface of the film. Since the opening of the film cartridge is exposed, the exposed surface of the film cartridge removed from the camera will be exposed to natural light, and even if the film cartridge is reinstalled into the camera, the exposed surface will not be exposed. There was a drawback that the number of photos taken could no longer be used for photography.

The present invention has been made in view of the above-mentioned conventional circumstances, and
SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a novel film cartridge capable of BJ overcoming the above-mentioned drawbacks inherent in the prior art.

Means for Solving the Problems In order to achieve the above object, the film cartridge according to the present invention has a structure in which a light shielding plate can be attached to the entire surface of the film near the exposure surface.

Embodiment Next, a preferred embodiment of the present invention will be specifically explained with reference to the drawings.

FIG. 1 is a perspective view showing an embodiment of the present invention.

In FIG. 1, the reference number l indicates a case, and the film is placed in the case l with the exposed side facing outward with respect to the opening 3 of the film cartridge, and the film is pulled out through the drawer location. The structure is such that by pulling the section S, the photographed film is taken out along with the photographic paper (not shown), and the next exposure surface is set. In addition to this structure, the case l is provided with a shielding plate insertion opening 2 for inserting a shielding plate 6 and a guide t. When it is necessary to remove the film from the camera, insert the shielding base into the shielding plate insertion lower of the film cartridge through the camera body to prevent the exposed side of the film from being exposed to natural light and remove the film from the camera in good condition. The cartridge can be taken out.

Also, if you want to conveniently use the remaining film in the film cartridge that has been removed by shielding the exposed side of the film in this way, you can set it in the camera as it is and leave the exposed side of the film unexposed. All you have to do is pull out the shielding plate 6 through the camera body, and you can use the film without wasting a single sheet.

Note that FIG. 1 shows a state in which the shielding plate 6 is inserted halfway, focusing on the mini film cartridge.

DETAILED DESCRIPTION OF THE INVENTION As described in detail, according to the present invention, by having a structure in which a KM light plate can be attached to the entire surface of a film cartridge near the film exposure surface, the same camera can be exposed to natural light from a film cartridge in the middle of use. This makes it possible to replace film cartridges without wasting a single film, and eliminates the need to carry around multiple cameras.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing an embodiment of the film car cartridge structure according to the present invention, and FIG. 1 is a perspective view showing a conventional film cartridge structure. L...Case, C...Exposed surface of film, J...
Film cartridge opening, drawer opening,
!・・・Film drawer, 6...Shielding plate, ri・
...Shielding plate insertion port, S...guide

Claims (1)

[Claims] The film is set in the camera body, and by pulling the film drawer, the film and photographic paper are taken out, and the next exposed side is set, and the film is inserted into the opening of the film cartridge with the exposed side facing outward. A film cartridge in which a light-shielding plate is attached to the entire surface near the exposure surface of the film.