JPH06295020A - Film unit with lens - Google Patents

Abstract

PURPOSE:To simplify film loading and to reduce a cost by shielding light on a winding window after a spool on which the leading edge of a film is fixed and a cartridge are loaded to a unit, and a winding shaft is inserted to take up the film from the winding window. CONSTITUTION:The leading edge of the film in the cartridge is fixed to the spool S, the spool S and the cartridge are fell into the film unit 1 provided with the lens, and a back cover 30 is attached. The winding shaft A is inserted from the winding window W on a bottom in a dark room, the film is taken up to the spool S, and the winding shaft A is drawn out of the winding window after the film is taken up, a light shielding cover C is inserted to the winding window W, then a catch C1 is locked to the winding window W by the elasticity of a plate-like catch attaching part C11, and the light shielding cover C is surely attached to the winding window W. Thus, work can be performed in the dark room only from the time when the film is wound by a winding device till the light shielding cover is attached, and the work on a process other than the film loading can be performed in a bright room, so that working efficiency is improved and an assembling cost can be reduced.

Description

Detailed Description of the Invention

[0001]

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

[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. To do. Then, the spool and the cartridge are dropped into the lens-fitted film unit in the above-mentioned state, and then the back cover is attached. Next, this is attached to the film winding device, and the winding shaft of the winding device is inserted from the spool winding window provided between the front cover and the back cover, and the spool is wound to set the film of the cartridge in a predetermined manner. The length of the film is wound on the spool and the film loading is completed. 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 the spool and the film on which the film is wound after the winding is completed. Drop the empty cartridge connected to the film unit with lens and attach the back cover to complete the film loading.
And, in the case of this film loading, it must be carried out in the darkroom 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 film unit with a lens described in the above-mentioned conventional technique is not always satisfactory even if it can be loaded in a bright room, and when it is considered as a film unit with a lens, it cannot be said that the technique has been established yet. It was

The lens-equipped film unit pursues ease of use by adding functions on the premise of miniaturization as much as possible, pursuing reusable reuse from the idea of reusing resources, and as a camera. There are many issues to pursue, such as pursuing required strength, simplifying film loading, pursuing cost reduction through automation, etc.

The present invention has been made to solve the above problems. In other words, while simplifying film loading, reducing costs through automation, etc., make the lens-equipped film unit even larger and add convenient functions to make it easier to use and reuse resources. It is an object of the present invention to provide a film unit with a lens that can be easily reused as much as possible and can increase the necessary strength as a camera as much as possible.

[0007]

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 unit with a lens, which enables the film to be wound up by one frame by the film winding knob, and the film which has been photographed is sequentially rewound into the patrone of the patrone chamber. Is fixed, and the spool and the cartridge are loaded into the lens-equipped film unit in the state described above, and a back lid is attached, and the back lid is provided between the front cover and the back lid of the lens-equipped film unit in a dark room. The film of the cartridge is inserted by inserting the hoisting shaft of the hoisting device through the hoisting window of the spool and winding up the spool. This is achieved by a film unit with a lens characterized in that a light-shielding lid is attached to the wind-up window from the direction of the rotation axis of the spool after winding, and the winding window is provided with a tripod screw hole. That is, the light-shielding lid has a plurality of vertical streak-like protrusions inside the hole having an inner diameter larger than the outer diameter of the tripod screw, and the tripod screw is screwed in to fix the tripod screw by the self-tapping method. A hole is provided, the light-shielding lid is provided with a mounting hole for attaching a hanging string, and the light-shielding lid is provided with locking claws for locking the front cover and the back cover. The mounting portion of the locking claw to the light-shielding lid has a plate-like elastic shape, and the light-blocking lid is provided with a locking claw for locking the front cover and the back cover. The front cover and the back cover are combined by the light-shielding cover It is achieved by Rukoto.

Further, the above object has a feeding means for feeding the film in advance, and an exposing means for photographing, and the film is wound up on the spool of the scroll chamber so that the film can be photographed immediately, and the film is wound up. In a film unit with a lens, in which a film is wound up by one frame by a winding operation of a knob, and a film which has been photographed is sequentially rewound into a patrone of a patrone chamber, the tip of the film of the patrone is fixed to the spool, and After loading the spool and the cartridge in the lens-fitted film unit in the above-mentioned state, a back cover is attached, and the spool is wound between the front cover and the back cover of the lens-fitted film unit in a dark room. Insert the hoisting shaft of the hoisting device through the window, wind up the spool, wind up the film of the cartridge, and wind it up. After completion, a groove for inserting and guiding the light shielding lid is provided in the front cover, the back lid, or both at a position that does not hinder the insertion of the light shielding lid of the winding window from a direction substantially perpendicular to the rotation axis of the spool. This is achieved by inserting the light shielding lid.

Further, the above object is achieved by the light shielding lid being made of a resin having a light shielding property.

Further, the above object is achieved by that the spool is made of a natural resin material, and that the spool is provided with a connecting portion on the upper and lower sides of the spool for connecting with a hoisting shaft of the hoisting device having the same shape. It is what is done.

[0011]

[Function] When loading a film into the lens-equipped film unit, pull out the film tip of the patrone to the specified length and fix it to the spool. Install, insert the hoisting shaft of the hoisting device through the spool hoisting window provided between the front cover and back cover in a dark room, wind the spool, and wind the film of the cartridge on the spool for a predetermined length. After the winding and winding are completed, the light shielding lid is attached to the winding window of the spool from the direction of the rotation axis of the spool to cover the spool.

The light shielding lid is provided with a tripod screw hole, a tripod screw hole capable of fixing a tripod screw by a self-tapping method, and a hanging string attachment hole. Then, these light-shielding lids are provided with locking claws for locking the front cover and the back cover, and once attached, they are prevented from being removed and serve as a seal to facilitate reuse. Further, these light-shielding lids are provided with locking claws for locking the front cover and the back lid, and by combining the front cover and the back lid, the lens when the tripod is attached to the light-shielding lid and the hanging string is attached. The strength of the attached film unit as a camera is being improved.

Further, a groove for inserting and guiding the light-shielding lid is provided in the front cover, the back lid, or both at a position that does not hinder the insertion of the light-shielding lid of the winding window from a direction substantially perpendicular to the rotation axis of the spool. Since it is also possible to insert the film, a dark room is required only when the film is wound on the spool as in the case described above. That is, in the present invention, it is possible to facilitate the loading of the film by operating the dark room only when the film is wound on the spool by the winding device, and the spool is made of the natural resin material, so that the material cost can be reduced. Since the spool is provided with a coupling portion on the upper and lower sides of the spool, which is coupled to the hoisting shaft of the hoisting device having the same shape, the directionality of the spool is eliminated, the assembling property is improved, and the assembling cost is reduced.

[0014]

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

1 to 6 are cross-sectional views of a scroll chamber in which the spool of the film unit with lens of the present invention is accommodated, in which the spool is accommodated. (However, only the spool is a side view, not a cross-sectional view.) FIG. 1 is a view before and after attaching the light-shielding lid to the film unit with lens, (a) is a view before attaching the light-shielding lid, (b) 8A is a cross-sectional view of the light-shielding lid, and FIG. 8C is a diagram showing a state after the light-shielding lid is attached.

As shown in FIG. 1A, the lens-fitted film unit is constructed so as to wrap the camera body 10 from the front and back by a front cover 20 and a back cover 30, and by the camera body 10 and the back cover 30. A spool S is accommodated in the scroll chamber 11 in the provided space as shown in the drawing.

That is, when loading the film into the film unit with 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 dropped into the lens-fitted film unit in the above-mentioned state, and then the back cover is attached. The state of the spool at this time is shown in FIG.

Then, in a dark room, the front cover 20 and the back cover
The hoisting shaft A of the hoisting device is inserted in the direction of the arrow Y1 through the hoisting window W of the spool S provided on the bottom side between 30 and 30, and the connecting portion of the hoisting shaft A is a bifurcated connecting portion of the spool S. By coupling with S1, the spool S is rotated, and the film of the cartridge not shown is wound onto the spool S.

The spool S is rotated by the winding shaft A to wind up the film, and after the winding is completed, the winding shaft A is pulled out from the winding window W and is made of a resin having a light-shielding property shown in FIG. 1 (b). Attach the shading cover C that is made to the arrow Y that is the direction of the rotation axis of the spool S.
It will be attached to the winding window W from two directions.

A locking claw C1 is attached to the light-shielding lid C via a plate-like elastic locking claw mounting portion C11. By inserting the light-blocking lid C into the winding window W in the direction of arrow Y2. , The locking claw C1 is slightly deformed by the elasticity of the locking claw mounting portion C11, but when the locking claw C1 gets over the edge of the hoisting window W, the locking claw C1 is returned to the original position by the elasticity of the locking claw mounting portion C11. Returning to FIG. 1 (c), the locking claw C1 of the light-shielding lid C is the winding window W.
Therefore, the light-shielding window C is surely attached to the winding window W, and the place where the unexposed film including the scroll chamber 11 exists is completely shielded from outside light. Become. In this way, the film loading in the lens-fitted film unit is completed.

FIG. 2 shows an embodiment in which a tripod screw hole T is provided in the light-shielding lid C in the space below the coupling portion S1 of the spool S with the light-shielding lid C.

FIG. 3 is a self-tapping tripod screw in which a plurality of vertical stripe projections P are formed inside a hole having an inner diameter larger than the outer diameter of the tripod screw instead of the tripod screw hole of FIG. 3 shows an embodiment in which the light shielding cover C is provided with a hole TH for a tripod, which is fixed. Figure 3
(A) is a sectional view of the scroll chamber as before,
(B) is the figure which looked at the hole for the said tripod from the lower side. Such a tripod hole is different from the tripod screw hole described in FIG. 2 in that the structure of the resin molding die is simple, the molding cycle can be shortened, and it can be manufactured at low cost.

In FIG. 4, a mounting hole for mounting a hanging strap is provided in place of the tripod screw hole or the tripod hole shown in FIGS.
The example which attached the hanging string ST is shown. Of course, this hanging string ST can be freely attached to and detached from the mounting hole.

FIG. 5 is a diagram showing an embodiment in which the light-shielding lid provided with the tripod screw hole shown in FIG. 2 is more firmly attached to the lens-equipped film unit.

That is, in addition to the conventional locking claw C1 for preventing the light blocking cover C from coming off, a locking claw C2 for locking the front cover 20 and the back cover 30 is provided on the light blocking cover C. The lens-fitted film unit 1 is made to have a larger rigidity by securely connecting the front cover 20 and the back cover 30 with the locking claws C2 provided on the light-shielding cover C, and this structure has a large rigidity. The light-blocking lid is firmly locked to the lens-fitted film unit by the locking claw C1. Therefore, the lens unit film unit 1 can be firmly fixed to the tripod by the tripod screw hole T of the light shielding cover C.

In any case, the spool with the film tip of the patrone fixed and the patrone dropped in the film unit with the lens until the back cover is attached are performed in a bright room, and the spool by the film winding device is relatively easy to automate. Work in a dark room only until the film is wound on and the light shield lid is attached to reduce the cost of dark room work.
Although a new light-shielding lid was provided to allow work in a bright room again, the light-shielding lid is provided with a tripod mounting hole or a hanging strap mounting hole as described above, so that it can be used as a small camera as a camera. It is now possible to add functions that increase usability.

Further, the locking claw C1 provided on the light-shielding cover C of the embodiment described with reference to FIGS. 1 to 5 for preventing the light-shielding cover C from coming off is a film with a lens, which has been photographed at the developing station after the photographing is completed. Since the light-shielding cover C must be removed when taking it out of the unit, it is bent at that time, or the tip of the locking claw C1 is broken, and it cannot be used again. In other words, the film is loaded into the lens-equipped film unit, and the light-shielding lid C is attached to the end of the film to complete the camera. However, the attachment of the light-shielding lid C serves to seal the camera from the above-mentioned contents. As a result, it will be possible for manufacturers to easily take responsibility for reuse.

In FIG. 6, the front cover is provided with a groove for inserting and guiding the light-shielding lid C from the direction perpendicular to the rotation axis of the spool S to a height position that does not hinder the insertion of the light-shielding lid C of the winding window W. 20 shows an embodiment in which the back cover 30 is provided and the light shielding cover C is inserted.
In the embodiment described with reference to FIGS. 1 to 5, the light shielding cover C is attached from the bottom side in the rotation axis direction of the spool S as described above, but as shown in this embodiment, the spool S is
It is also possible to insert from the direction perpendicular to the rotation axis of.

Accordingly, as described above, after the spool and the cartridge in which the film tip of the cartridge has been fixed in the bright room are dropped into the lens-equipped fill unit and the back cover is attached, the film winding device is relatively easy to automate. It is possible to work in the dark room only until the film is wound on the spool and the light-shielding lid is attached to reduce the cost of the dark room work.

In any case, it is important that the light shielding lid C is made of a resin material having a light shielding property.

Further, the spool S has a light-shielding property even if an inexpensive natural resin material containing no additives such as carbon is used for the spool S because the light-shielding cover C has a light-shielding property. There is no worry of film fog caused by. Further, the coupling portions S1 at both ends of the spool S have the same shape, that is, the spool S can be coupled with the coupling member CP in either direction, and since there is no directivity, it is necessary to align the directions of the spool S during assembly. In addition, the assemblability is improved and the assembling cost is reduced.

By using a low-priced natural resin material that does not have a light-shielding property for the spool S described above, and has the same shape at both ends of the spool S so that there is no directionality, the assembling property is improved and the assembling cost can be reduced. This means that all of the embodiments described with reference to FIGS. 1 to 5 can be applied as they are.

That is, even if a natural resin material having no light-shielding property is used for the spool S, the film is wound on the spool S by a winding device in a dark room, and the light-shielding lid C is attached to the winding window W after the winding is completed. There is no worry of light leakage. Further, since the spool S is provided with the coupling portions S1 having the same shape at both ends of the spool S in either direction, the spool S can be coupled with the winding shaft of the winding device to wind the film.

[0034]

According to the present invention, the film can be loaded in the dark room only while the film is wound up on the spool by the hoisting device and the light-shielding lid is attached to the hoisting window, and the other steps can be carried out in the light room to improve work efficiency. It is possible to improve the cost of the spool, use a cheap natural resin for the spool, and eliminate the direction of the spool to improve the assemblability and reduce the assembly cost. Then, the lens-fitted film unit can be attached to a tripod or a sling with the current size, or the tripod or the sling attachment part can be made stronger so that resources can be reused. A film unit with a lens that makes it easy for manufacturers to reuse the product responsibly has been provided.

[Brief description of drawings]

FIG. 1 is a sectional view of a scroll chamber in which a light shielding lid is attached to a winding window of a film unit with a lens according to the present invention.

FIG. 2 is a sectional view of a scroll chamber in which a light shielding lid having a tripod screw hole is attached to a winding window of a film unit with a lens according to the present invention.

FIG. 3 is a cross-sectional view of a scroll chamber in which a light-shielding lid having a tripod hole is attached to a winding window of a film unit with a lens according to the present invention.

FIG. 4 is a cross-sectional view of a scroll chamber in which a light-shielding lid having a hanging string attachment hole is attached to the winding window of the lens-equipped film unit according to the present invention.

FIG. 5 is a sectional view of a scroll chamber in which a light-shielding lid having a tripod screw hole is more firmly attached to a winding window of a film unit with a lens according to the present invention.

FIG. 6 is a sectional view of a scroll chamber in which a light shielding lid is inserted into a winding window of a lens-equipped film unit according to the present invention from a direction perpendicular to a spool rotation axis.

[Explanation of symbols]

 1 Film unit with lens 10 Camera body 11 Scroll chamber 20 Front cover 30 Back cover S Spool S1 Connecting part ST Suspension string W Winding window A Winding shaft C Light shielding lid C1, C2 Locking claw C11 Locking claw mounting part T Tripod Screw hole TH Hole for tripod P Protrusion

Claims (10)

[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 unit with a lens that winds the film one frame at a time by the film winding knob to wind the film, and then rewinds the film that has been taken into the film cartridge in the film cartridge chamber, fix the film tip of the film cartridge to the spool. After mounting the spool and the cartridge in the lens-equipped film unit in the above-mentioned state, a back cover is attached to the spool provided between the front cover and the back lid of the lens-equipped film unit in a dark room. Insert the hoisting shaft of the hoisting device from the hoisting window, wind up the spool and wind up the film of the cartridge.
A film unit with lens, wherein a light-shielding lid is attached to the winding window from the direction of the rotation axis of the spool after the winding is completed. 2. The lens-equipped film unit according to claim 1, wherein the light-shielding lid is provided with a tripod screw hole. 3. The light-shielding lid has a plurality of vertical streak-like protrusions inside a hole having an inner diameter larger than the outer diameter of the tripod screw, and the tripod screw is screwed in to fix the tripod screw by a self-tapping method. The film unit with a lens according to claim 1, wherein the film unit with a lens is provided. 4. The film unit with lens according to claim 1, wherein the light shielding lid is provided with a mounting hole for mounting a hanging string. 5. The light-blocking lid is provided with locking claws for locking the front cover and the back cover, and a mounting portion of the locking claw to the light-blocking lid has a plate-like elasticity. The film unit with a lens according to claim 1, 2, 3 or 4. 6. The light-blocking lid is provided with locking claws for locking the front cover and the back cover, and the light-blocking lid having the locking claws connects the front cover and the back cover. The film unit with a lens according to claim 1, 2, 3, 4, or 5. 7. 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 in a scroll chamber to enable photographing immediately.
In the film unit with a lens that winds the film one frame at a time by the film winding knob to wind the film, and then rewinds the film that has been taken into the film cartridge in the film cartridge chamber, fix the film tip of the film cartridge to the spool. After loading the spool and the cartridge in the lens-equipped film unit in the above-described state, a back cover is attached, and a spool provided between the front cover and the back lid of the lens-equipped film unit in a dark room. Insert the hoisting shaft of the hoisting device from the hoisting window, wind up the spool and wind up the film of the cartridge.
After completion of winding, a groove for inserting and guiding the light-shielding lid is provided on the front cover, the back lid, or both at a position that does not hinder the insertion of the light-shielding lid of the winding window from a direction substantially perpendicular to the rotation axis of the spool. A film unit with lens, wherein the film unit with a lens is provided to insert the light-shielding lid. 8. The light-shielding lid is made of a resin having a light-shielding property.
Alternatively, the film unit with a lens according to item 7. 9. The spool is made of a natural resin material, 1, 2, 3, 4, 5,
The film unit with a lens according to 6, 7, or 8. 10. The spool is provided with coupling portions above and below the spool that are coupled to a hoisting shaft of the hoisting device having the same shape. ，
The film unit with a lens according to 7, 8 or 9.