JPH0531645Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a film unit that is convenient for handling disc-shaped films. In particular, the present invention relates to a disc-shaped film unit in which a disc-shaped film is attached to a viewer for observing both images of the film.

[Conventional technology]

There are various forms of color photographic light-sensitive materials that can be loaded into a camera, but a light-sensitive material that is compatible with the recent trend toward miniaturization of camera cameras has been developed, and one frame of film has a size of 8×. Disc-shaped film that can record images for 15 frames (10) is commercially available. This film is stored in a cartridge made of a thin synthetic resin plate, and the cartridge is loaded into the camera and the exposure window is opened to take pictures, and the film is rotated for each frame.
After each frame was photographed, the exposure window was closed, the cartridge was removed from the camera, the cartridge was broken in a dark room (dark box), the film inside was removed, and the film was developed. After development, it is currently stored in a negative case such as a paper bag or polyethylene film like other negative films.

[Problem that the invention attempts to solve]

In particular, when handling disc-shaped film after development, compared to other 25-exposure 35mm films, the overall size of disc-shaped film is smaller, so it is easier to get fingerprints and other dirt when handling it. It is common practice to put your fingers around the outer periphery of the paper and pinch it, but it tends to fall off and is difficult to handle.

The present invention improves these drawbacks and provides a film unit that can handle disc-shaped films without paying attention to contamination of the film surface even after development. The first object of the present invention is to provide a film unit that can handle films without directly touching them. Second
The object of the present invention is to provide a film unit that can be easily attached to an observation device such as a viewer.

[Means to solve the problem]

The above object of the present invention is characterized in that the box is made up of a lid member and a flat plate member, and the lid member and the flat plate member are fitted together to form a box body that houses the entire disc-shaped film. This was achieved using a disc-shaped film unit.

As mentioned above, the film unit of the present invention is a film unit made of a box formed by fitting two separate members together. explain.

FIG. 1 is a perspective sectional view showing the schematic structure of the film unit of the present invention.

In the figure, 1 is a lid member and 2 is a flat member, which form a box by fitting together.
The lid member 1 has side wall surfaces 4A, 4B formed by bending the four peripheries of the flat sheet 3, respectively.
4C and 4D (however, 4D is not shown because it is a sectional view), and this side wall surface 4A,
The space formed by 4B, 4C, and 4D is used as a storage chamber required to store a disc-shaped film to be described later.

The flat member 2 may be a flat sheet having a flat surface, and the side wall surfaces 4A, 4B of the lid member 1 described above,
A box is formed by fitting the end faces of 4C and 4D.

Next, a method of fitting the lid member 1 and the flat plate member 2 will be explained with reference to the embodiment shown in the drawings.

The illustrated embodiment shows a pin-fitting engagement as one example of various fitting methods.
That is, 5A, 5B, 5C, and 5D (however, 5B is not shown) are pins provided on the end faces of the side wall surfaces at the four corners of the lid member 1, respectively.
Holes that engage with holes A, 5B, 5C, and 5D are provided at the four corners of the flat plate member 2, respectively, as shown by 6A, 6B, 6C, and 6D (however, 6B is not shown) so as to correspond to the pins. There is. Therefore, by inserting a disc-shaped film between the lid member 1 and the flat plate member 2, aligning the lid member 1 and the flat plate member 2 accurately, and pressing them together, the pins can be inserted into the corresponding holes. The disc-shaped film unit of the present invention is completed by fitting and fitting to form a box body.

According to the present invention, the disc-shaped film is rotatably accommodated in the frame by the space formed by the side wall surfaces 4A, 4B, 4C, and 4D of the lid member 1 as described above, but the flat plate of the lid member 1 is Shallow grooves 7 and 8 corresponding to the shape of the disc-shaped film are respectively formed in the shaped sheet 3 and the flat plate-shaped member 2, and the disc-shaped film can be freely rotated using the spaces formed by the grooves 7 and 8. It may be accommodated.

Next, referring to the rotation of the disc-shaped film 13 housed in the frame, either one of the lid member 1 and the flat plate-shaped member 2 of the film unit of the present invention,
Or the core 1 of the disc-shaped film 13 is placed on both of them.
Rotation of the disc-shaped film 13 is made possible by providing a core fitting hole 9 that fits into the core 4 (described later). That is, when the frame of the present invention is loaded into a viewing or photo printing machine at a predetermined position in each device, the rotating members of these devices fit into the core fitting hole 9.
Through this, the core 14 of the disc-shaped film is fitted, and rotational motion is transmitted. Further, when it is necessary to observe the image on the disc-shaped film, it can be viewed by interposing it through a single-frame image window 10 provided around the frame lid member and the flat plate member 2.

Any material can be used to manufacture the disc-shaped film unit of the present invention, such as paperboard, plastic sheet, or metal foil thin plate, but plastic sheets are preferred from the viewpoint of ease of processing and durability. Preferably used.

Therefore, the method of fitting the lid member 1 and the flat member 2 is not limited to the above-mentioned fitting engagement using a pin, but also a bonding method using an adhesive or a solvent, or a method of adjusting the tip shape of the cloth fibers. The fabric adhesion method used can be used.

FIG. 2 shows a film unit of the present invention as still another embodiment.

That is, whereas the frame shown in FIG. 1 forms a box by fitting with the flat plate member 2 using the end faces of the side wall surfaces 4A, 4B, 4C, and 4D of the lid member 1. , in the frame shown in FIG.
As the size of the flat member 11 is indicated by the dotted line in the figure, the side wall surfaces 4A, 4B, 4C,
Therefore, the formation of the frame according to this embodiment is completed by fitting the flat plate member 11 into the side wall surfaces 4A, 4B, 4C, and 4D of the lid member 1. It is something that

Therefore, also in the film unit according to this embodiment, it is not possible to apply the same method of adhesion when fitting the lid member 1 and the flat member 11 as in the case of the frame shown in FIG. Yes, but
As long as it is possible to manufacture the lid member 1 and the flat plate member 11 with high precision, simply pressing the flat member 11 against the inside of the side wall surfaces 4A, 4B, 4C, and 4D of the lid member 1 will cause the frictional force to A perfect fit is obtained and a box can be formed. Further, an engaging protrusion may be provided on the inner surface of the box body 3.

The formation of the core engaging hole 9 and the one-frame image window 10 in the film unit according to this embodiment is exactly the same as that of the frame shown in FIG. The shallow grooves 7 and 12 can also be provided in the same manner.

Further, according to the present invention, the above-mentioned lid member 1 and flat plate members 2 and 11 constituting the frame of the present invention
is preferably writable so that, for example, symbols for indicating the front and back sides of the disc-shaped film housed therein can be written thereon. Next, the structure of the disc-shaped film accommodated in the film unit of the present invention will be explained.

FIG. 3 is a plan view showing a schematic structure of a disc-shaped film according to the present invention.

The disc-shaped film according to the present invention has a core 14 at the center of a circular film 13, and one-frame images 15 are arranged circularly around the core 14. The core 14 is a member required for engaging with a rotating member of the device when the disc-shaped film is installed in a viewer or a photo printer, etc. The above-mentioned engagement enables the disc-shaped film to rotate. be done.

It is important that the disc-shaped film according to the present invention is similarly rotatable when housed in the film unit of the present invention, and as shown in FIGS.
It can be seen that the core engagement hole 9 shown in the figure is useful for making the disc-shaped film rotatable by engaging with the core of the housed disc-shaped film.

[Effect of idea]

The disc-shaped film unit of the present invention can be easily formed by fitting the lid member and the flat plate-shaped member together, and the disc-shaped film unit accommodated therein is easy to handle during operation in a viewer or photo printing machine. It is easy to use and does not allow stains such as fingerprints to adhere to the film surface.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing a schematic structure of a film unit according to the present invention, FIG. 2 is a perspective view showing an external structure of a disc-shaped film unit according to another embodiment of the present invention, and FIG. FIG. 2 is a plan view showing a disc-shaped film used in the present invention. 1... Lid member, 2... Flat member, 4A, 4
B, 4C, 4D...Side wall surface, 9...Core engagement hole,
10...One-frame image window, 13...Film, 14...
...Core, 15...1 frame image.

Claims (1)

[Scope of utility model claims] 1. A disc-shaped film unit comprising a lid member and a flat plate-shaped member, the lid member and the flat plate-shaped member being fitted together to form a box body that houses the entire disc-shaped film.