JPH06295022A - Film loading method for film unit with lens - Google Patents

Abstract

PURPOSE:To improve efficiency in the case of loading a film and to reduce a cost by housing a spool in which the leading edge of the film is fixed and a cartridge in the film unit provided with a lens and attaching a back cover after the film is taken up in a dark room. CONSTITUTION:The cartridge P is housed in the cartridge chamber 11 of the camera main body 10 of the film unit 1 with the lens, and the spool S in which the leading edge of the film F of the cartridge P is drawn by a specified length and fixed is housed in a scroll chamber 12. In the dark room, the spool S is wound by a winding device, the film F of the cartridge P is taken up to the spool S by the specified length, and the back cover 20 is attached after the film is taken up. Consequently, while the film F is wound, a film guide part 21 provided on the back cover 20 is not brought into contact with a surface on a side opposite to the emulsion coated surface of the film F, so that the surface of the film is not damaged. Therefore, the film F can be taken up to the spool S from the cartridge P at a high speed, and the efficiency of the film loading can be improved.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a film loading method for a film unit with a lens.

[0002]

2. Description of the Related Art Conventionally, when loading a film into a film unit with a lens, the film tip of the cartridge is pulled out by a predetermined length and inserted into the slit of the spool, and the perforation of the film is locked and fixed to the claw of the spool. . Then, the spool and the cartridge are housed in the lens-fitted film unit in the above-mentioned state, and the back cover is attached. Next, attach this to the film winding device, insert the winding shaft of the winding device from the spool winding window on the bottom, wind the spool and wind the film of the cartridge on the spool for the specified length, and load the film. Complete. And, the above-mentioned film loading operation can be performed in the light chamber of all steps.

On the other hand, as another film loading method, the work of winding the film of the cartridge onto the spool for a predetermined length is performed outside the film unit with lens, and after the winding is completed, the spool and the film on which the film is wound. The empty patrone connected by is stored in the film unit with lens, the back cover is attached, and the loading of the film is completed.
And, in the case of this film loading, it has to be performed in a dark room in all steps.

[0004]

As described above, it is naturally preferable to work in a bright room as much as possible when loading a film, rather than to work in a dark room. However, in order to be able to load a film in a bright room, it is necessary that the film unit with a lens can be used. However, the lens-equipped film unit described in the above conventional technique is not always satisfactory even though it can be loaded in a bright room, and when considered as a lens-equipped film unit,
It could not be said that the technology was established yet.

That is, in order to load the film in the lens-fitted film unit in a bright room in all steps, after the spool and the cartridge in which the film tip of the cartridge is fixed as described above are stored in the lens-fitted film unit. The back cover is attached to prevent the film from fogging, and the spool is wound up by the winding device to wind the film of the cartridge on the spool for a predetermined length and load the film.

Therefore, the film is wound from the cartridge to the spool through the very narrow gap between the image frame rail surface of the lens-equipped film unit and the film guide portion of the back cover. Therefore, if you wind the film from the cartridge to the spool at high speed, it will damage the film.Therefore, the speed is limited, and be careful not to damage the film. I had to do some work.

Also, the film winding mechanism of the film unit with a lens can freely rotate the film winding shaft of the cartridge while the film is being wound from the cartridge to the spool, unlike the film winding after the usual photographing. Therefore, the structure must be such that this state can be switched by a simple operation.

The present invention has been made to solve the above problems. That is, when loading a film into a film unit with a lens, the film can be wound up at high speed from the cartridge without damaging the spool, thereby increasing the efficiency of loading the film and reducing the cost.
Furthermore, the film winding mechanism of the film unit with lens,
An object of the present invention is to provide a low-cost film loading method for a lens-equipped film unit that does not need to easily switch the winding shaft of the cartridge to be rotatable in the reverse direction.

[0009]

The object is to have a feeding means for feeding a film in advance, and an exposing means for photographing, and the film is immediately taken while being wound on a spool in a scroll chamber. In the film loading method of the lens-equipped film unit, the film is wound up by one frame by the film winding knob, and the film that has been photographed is sequentially rewound into the patrone of the patrone chamber. Fix the film tip of the cartridge, store the spool and the cartridge in the lens-equipped film unit in the above-mentioned state, and wind up the spool by the winding device in the dark room to wind up the film of the cartridge. A film unit with a lens, characterized in that the back cover is attached after the end It is achieved by Irumu loading methods.

Further, the above-mentioned object has a feeding means for feeding a preliminarily film and an exposing means for photographing, and the photographing film can be photographed immediately by being wound around a spool in a scroll chamber, In the film loading method of the lens-equipped film unit, the film is wound up to one frame by the winding operation of the film winding knob, and the film that has been photographed is sequentially rewound into the patrone of the patrone chamber.
The film tip of the cartridge is fixed to the spool, the spool is housed in the scroll chamber of the lens-equipped film unit, the spool is wound up by a hoisting device in a dark room, and the film of the cartridge is wound up, and the winding is completed. After that, the cartridge is housed in the cartridge chamber of the lens-equipped film unit, and the back cover is attached to the film-equipped lens unit-equipped film loading method.

[0011]

[Function] The spool with the film tip of the patrone fixed and the patrone are stored in the film unit with lens, and the spool is wound up by the hoisting device in the dark room without the back cover, and the film of the patrone is wound on the spool of a predetermined length. Since the back cover is attached after the film is taken, the film is not scratched even if it is wound at high speed.

Of the spool and the cartridge having the film tip of the cartridge fixed, only the spool is housed in the scroll chamber of the lens-fitted film unit, and the spool is wound up by a winding device in a dark room to roll the film of the cartridge to a predetermined length. The film is wound on a spool, the empty cartridge is stored in the cartridge chamber of the film unit with lens, and then the back cover is attached, so that the film will not be scratched even if it is wound at high speed. Furthermore, since the cartridge is not stored in the film unit with lens while the film is being wound on the spool, the winding mechanism of the film unit with lens needs to be able to easily switch the winding shaft of the cartridge so that it can rotate in the reverse direction. Nor.

[0013]

Embodiments of the present invention will now be described with reference to the accompanying drawings and FIGS.

1 to 3 are views showing a central cross section of a film unit with a lens. In FIG. 1, a cartridge chamber 11 for storing a cartridge and a scroll chamber 12 for storing a spool are provided on both left and right sides of a camera body 10 of the film unit with lens 1. Then, between the patrone chamber 11 and the scroll chamber 12, the film that has been photographed, which is made by the picture frame rail surface 13 provided on the main body 10 and the film guide portion 21 provided on the case back 20, is taken at every photographing. From the spool of the scroll chamber 12 to the Patrone chamber
Narrow gap C which is passed when rewinding to 11 patrone
Is provided. That is, the film is rewound from the spool of the scroll chamber 12 to the cartridge of the cartridge chamber 11 through the narrow gap C only when the photographing is finished.

FIG. 2 is a view for explaining an embodiment according to the present invention. The film tip of the cartridge is pulled out to a predetermined length and fixed to the spool, and the spool and the cartridge are stored in the lens-fitted film unit as they are. Location.

That is, in FIG. 2, a cartridge P is placed in the cartridge chamber 11 of the camera body 10 of the lens-fitted film unit 1, and a tip of the film F of the cartridge P is pulled out to the scroll chamber 12 by a predetermined length and fixed to the spool S. The spool S is stored as it is.

Then, the spool S is wound up by a hoisting device in a dark room, the film F of the cartridge P is wound up on the spool S for a predetermined length, and the back cover 20 is attached after the winding is completed. Therefore, since the back cover 20 is not attached while the film F is being wound from the cartridge P onto the spool S, the film guide portion 21 provided on the back cover 20 is provided on the surface of the film F opposite to the emulsion coating surface. There is no contact so there is no scratch. The emulsion-coated side of the film F comes into contact with the image frame rail surface 13, but since it is outside the image frame, there is no particular problem even if it is scratched. Therefore, the film F can be wound up on the spool S at a high speed from the cartridge P, which makes it possible to improve the efficiency of the film loading and greatly reduce the cost.

FIG. 3 is a view for explaining another embodiment according to the present invention, in which the film tip of the cartridge is pulled out by a predetermined length and fixed to the spool, and only the spool is housed in the lens-equipped film unit. ing.

That is, in FIG. 3, a cartridge P is held outside the camera body 10 of the lens-equipped film unit 1 by means not shown as shown in the drawing, and the tip of the film F of the cartridge P is held in the scroll chamber 12. The spool S that is pulled out by a predetermined length and fixed to the spool S is stored.

Then, the spool S is wound up by the hoisting device in the dark room, the film F of the cartridge P is wound on the spool S of a predetermined length, and the empty cartridge P after the winding is completed is the cartridge room of the camera body 10. It is stored in 11, and the back cover 20 is attached. Therefore, while the film F is being wound from the cartridge P onto the spool S, the back cover 20 is not attached and the film F is further floating from the image frame rail surface 13, so that the film provided on the back cover 20. The guide portion 21 is not in contact with the surface of the film F opposite to the emulsion coating surface, and since the cartridge P is in the illustrated state, the emulsion surface side of the film F is also the frame rail of the camera body 10. Since it does not contact the surface 13 either, the scratches caused by these do not occur on both sides of the film at all.

Therefore, the film F can be wound up from the cartridge P to the spool S at a higher speed, which makes it possible to improve the efficiency of film loading and greatly reduce the cost.

Further, as described above, according to this method, while the film F is being wound from the cartridge P to the spool S, the cartridge P is the camera body of the film unit with lens 1.
Since it is not housed in the cartridge chamber 11 of 10, the hoisting mechanism of the camera body 10 does not need to easily switch the hoisting shaft of the cartridge P to be rotatable in the reverse direction.

[0023]

According to the present invention, it is possible to wind a film from a cartridge to a spool at a high speed without damaging the film, thereby improving the efficiency of loading the film and reducing the cost, and further winding the film of the film unit with a lens. The upper mechanism also provides a low-cost film loading method for a film unit with a lens, which does not require a complicated function with a new function of simply switching the winding shaft of the patrone to be rotatable in the reverse direction. is what happened.

[Brief description of drawings]

FIG. 1 is a central cross-sectional view of a film unit with a lens for explaining a loading method of the present invention.

FIG. 2 is a central cross-sectional view of a film unit with a lens for explaining an embodiment of a loading method of the present invention.

FIG. 3 is a central transverse sectional view of a film unit with a lens for explaining another embodiment of the loading method of the present invention.

[Explanation of symbols]

 1 Film unit with lens 10 Camera body 11 Patrone chamber 12 Scroll chamber 13 Picture frame rail surface 20 Back cover 21 Film guide part C Gap F Film P Patrone S Spool

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Toshiyuki Okawa 1st Sakura-cho, Hino City, Tokyo Konica Stock Company In-house

Claims (2)

[Claims] 1. A film has a feeding means for feeding the film in advance, and an exposure means for photographing, and the film is wound on a spool of a scroll chamber to enable photographing immediately.
In the film loading method of the lens-equipped film unit, the film is wound one frame at a time by the winding operation of the film winding knob, and the film that has been photographed is sequentially rewound into the cartridge of the cartridge chamber. Fix the tip, store the spool and the cartridge in the film unit with lens in the same state as described above, wind up the spool by the winding device in the dark room to wind up the film of the cartridge, A film loading method for a film unit with a lens, wherein a lid is attached. 2. The film has a feeding means for feeding the film in advance, and an exposing means for photographing, and the film is wound on a spool in a scroll chamber to enable photographing immediately.
In the film loading method of the lens-equipped film unit, wherein the film is wound up by one frame by the film winding knob, and the film that has been photographed is sequentially rewound into the cartridge of the cartridge chamber. The tip is fixed, the spool is stored in the scroll chamber of the lens-equipped film unit, the spool is wound up by a hoisting device in a dark room to wind up the film of the cartridge, and after the winding is completed, the cartridge is attached to the lens. A film loading method for a lens-equipped film unit, characterized in that the film unit is housed in a cartridge chamber and a back cover is attached.