JPH0843903A - Camera integrated with film - Google Patents

Abstract

PURPOSE:To provide a camera integrated with film in which the number of photographed frames can be changed in a film cartridge side, of which film cartridges and camera main bodies can be manufactured and stocked to save the work and the time taken for assembly, and of which manufacturing work can be carried out easily since structure is simple and different types of cameras with films with the different number of photographic frames can be provided only by changing film cartridges. CONSTITUTION:Regarding a camera integrated with film in which a photographic film F is set previously in a camera main body l at the time of assembly, the photographic film F is wound up every time when a picture is taken, and from which the photographed photographic film F is taken out by decomposing the camera; a photographic film F is put in a film cartridge 7 in which a storing chamber 9 and a winding up chamber 10 are united, an index plate 14 to display the number of photographed frames of a photographic film F is installed in the film cartridge 7 in the way the plate can rotate, and such film cartridge 7 is assembled in a camera main body, so that the index plate 14 and a rotating system 19 to change the index display of the index plate 14 every time when one frame of the photographic film F set in the camera main body side is wound up are joined mutually and thus the index display of the index plate 14 can be observed by eyes from the outside of the camera main body 1.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a film-integrated camera in which a photographic film is preliminarily loaded in a camera body during assembly.

[0002]

2. Description of the Related Art In a film-integrated camera, a photographic film is loaded into the camera body in advance at the time of assembly, the photographic film is wound up and taken up at each photographing, and disassembled at a developing place to store the photographed film. Some take out the film cartridge.

For loading the photographic film, for example, a film cartridge containing the photographic film is set in a winding chamber, and the leading end of the photographic film is pulled out from the film cartridge so that the film can be wound on a spool in the storing chamber. The lid is covered with a cover, and the photographic film is set in the storage chamber by turning the spool from the outside with a tool or the like and winding it in the light-shielded state. The photographic film set in the storage chamber is wound up every time of shooting and stored in a film cartridge.

[0004]

In such a film-integrated camera, an index plate for displaying the number of photographic films taken is rotatably mounted on the camera body, and the index plate is attached every time the number of photographic films taken changes. The index plate must be changed according to the number of sheets.

Therefore, in the structure in which the index plate is incorporated in the camera body, the index plate has to be changed from the almost first step of incorporating the index plate into the camera body each time the number of images to be photographed is switched at the manufacturing site. As described above, since the index plate in the camera body changes as the number of shots changes, it is troublesome to switch between models having different numbers of shots at the manufacturing site.

When the camera is assembled, the photographic film can be loaded by pulling out the front end of the photographic film from the film cartridge to wind it up on the spool in the storage chamber and then closing the lid with the rear cover. The photographic film is set in the storage room by winding the spool by winding it up, etc., and it takes time and effort to assemble the camera.

Therefore, the photographic film is stored in advance in a film cartridge in which a storage chamber and a winding chamber are integrally formed so that the film cartridge can be wound up. If it is attached to the main body, the number of steps and time can be greatly reduced, but in this case, it becomes necessary to provide the film cartridge with the function originally possessed by the camera main body. That is, unless there is a film cartridge corresponding to a guide rail for moving the photographic film formed in the camera body, the position of the photographic film will not be constant, which may cause the focus to vary.

Further, if the back side of the film cartridge is flat, it is considered that the photographic film may be scratched by winding the photographic film.

Further, like a film-integrated camera,
In the case of a camera whose cost must be suppressed, the number of taking lenses is also reduced, and in such an taking lens, the center and peripheral focus positions are displaced due to field curvature.

The present invention has been made in view of the above point. In the invention described in claim 1, the number of images to be shot can be switched only on the side of the film cartridge, and the film cartridge and the camera body can be made in advance. It is an object of the present invention to provide a film-integrated camera that can reduce the number of assembling steps and time, and can make a model having a different number of shots by simply changing a film cartridge having a simple structure, which makes the work easier. Further, according to the second aspect of the present invention, by keeping the film position constant, it is possible to improve the reliability of focusing, and also to provide a film cartridge which has few scratches on the photographic film and is strong. It is an object of the present invention to provide a film-integrated camera equipped with the camera. It is another object of the present invention to provide a film-integrated camera including a film cartridge having high strength, which is capable of correcting field curvature and suppressing focus shift as much as possible.

[0011]

In order to solve the above-mentioned problems, according to the invention of claim 1, a photographic film is loaded in a camera body in advance at the time of assembling, and the photographic film is wound up and wound up at every photographing. In a film-integrated camera that disassembles and takes out photographic film that has been taken, the photographic film is stored in a film cartridge in which a storage chamber and a winding chamber are integrally formed, and the number of photographic films taken is stored in this film cartridge. An index plate for displaying is rotatably provided, and by assembling this film cartridge to the camera body, the index plate and the index display of the index plate are displayed every time one frame of the photographic film provided on the camera body side is wound up. It is characterized in that an index display of the index plate is made visible from the outside of the camera body by engaging with a rotating mechanism to be changed. That.

According to a second aspect of the present invention, a photographic film is loaded in the camera body in advance at the time of assembling, the photographic film is rolled up and wound up for each photographing, and disassembled to take out the photographed photographic film. In the camera, the photographic film is stored in a film cartridge in which a storage chamber and a winding chamber are integrally formed, and the film cartridge is out of the image frame on the side of the taking lens where the photographic film slides. It is characterized in that a guide rail and a rib-shaped film regulating member are arranged at positions opposite to the photographing lens.

According to a third aspect of the present invention, a photographic film is loaded in the camera body in advance at the time of assembling, the photographic film is wound up and wound up for each photographing, and disassembled to take out the photographed photographic film. In the camera, the photographic film is stored in a film cartridge in which a storage chamber and a winding chamber are integrally formed, and the film cartridge is out of the image frame on the side of the taking lens where the photographic film slides. An arch-shaped guide rail capable of correcting a focus shift due to a field curvature at a position, and an arch-shaped film regulating member arranged on the opposite side of the photographing lens at equal intervals. I am trying.

[0014]

According to the first aspect of the present invention, by providing the film cartridge with the index plate, the number of shots can be switched only on the film cartridge side, and the camera body side is not related to the number of shots. Therefore, the film cartridge and the camera body can be built and stored, and the labor and time for assembling can be reduced. Moreover, since it is possible to create models with different numbers of shots simply by exchanging the film cartridge, which has a simple structure, work becomes easier.

According to the second aspect of the present invention, the guide rail and the film regulating member arranged in the film cartridge can keep the film position constant and improve the reliability of focus. In addition, by using the rib-shaped film regulating member, the film cartridge has few scratches on the photographic film and is strong in strength.

According to the third aspect of the present invention, the arch-shaped guide rail corrects the focus deviation (field curvature) between the center and the periphery, which occurs in a limited number of taking lenses, and the arch-shaped guide rail is used. The arch-shaped film regulating member suppresses the variation in the film position and improves the focusability. Further, the arch-shaped guide rail and the arch-shaped film regulating member make the film cartridge strong in strength.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A film-integrated camera according to the present invention will be described below in detail with reference to the drawings. FIG. 1 is an exploded perspective view of a film-integrated camera, and FIG. 2 is a perspective view of a rotating mechanism for changing the index display of an index plate.

This film-integrated camera is a simple camera that is put on the market with the photographic film F loaded, and the photographic film F is loaded in the camera assembling process to load or rewind the photographic film of the user. The user can take a picture immediately without the need for such operations.

The camera body 1 of this film-integrated camera
Is configured by assembling the front cover 2 and the rear cover 3,
A photographing lens (not shown) is provided in the center of the front cover 2, and a finder 4 is provided on the rear cover 3.

A release button 5 is integrally formed on the upper portion of the front cover 2, and a hoisting knob 6 is rotatably assembled. The front cover 2 has a film cartridge 7
And the rear cover 3 is assembled so as to cover the film cartridge 7.

In the film cartridge 7, a cartridge body 8 is integrally formed with a storage chamber 9 and a winding chamber 10, and an image frame 11 is provided between the storage chamber 9 and the winding chamber 10. In this embodiment, the photographic film F is stored in the storage chamber 9 of the cartridge body 8, and the photographic film F is wound up by the winding spool 12 provided in the winding chamber 10.

A box portion 13 is integrally provided on the cartridge body 8, and the photographic film F is attached to the box portion 13.
An index plate 14 that displays the number of captured images is rotatably provided. An opening portion 16 is formed in the box portion 13, and a tooth portion 14 a of the index plate 14 projects from the opening portion 16.

A display window 13a for displaying the index of the index plate 14 is formed in the box portion 13. A window portion 15 is formed on the rear cover 3 so as to correspond to the box portion 13 of the cartridge body 8.
The index display of 4 can be seen and is visible from the outside of the camera body 1.

In the film cartridge 7, the hoisting spool 12 is engaged with the hoisting knob 6 by the assembling to the front cover 2, and the tooth portion 14a of the index plate 14 of the rotary shaft 17 assembled to the front cover 2. It meshes with the notch 17a formed in the axial direction. A bevel gear 18 is provided on the rotary shaft 17, and the bevel gear 18 meshes with a bevel gear 21 of a cam 20 which constitutes a part of the shutter charge mechanism 19.

When the shutter charge mechanism 19 pushes the release button 5, the charged state is released and the shutter is operated to take a picture, and then the winding knob 6 is rotated to wind up one frame of the photographic film F. The cam 20 of the shutter charging mechanism 19 rotates in conjunction with the rotation of the hoisting knob 6 to charge the shutter in preparation for the next shooting.

The bevel gear 21 of the cam 20 has a rotating shaft 17
Since the bevel gear 18 meshes with the photographic film F
The cam 20 rotates each time one frame is wound up, and the notch 17a is linked to the index plate 14 every time the rotary shaft 17 makes one rotation.
The tooth portions 14a are fed one by one, and the index display is increased by one by rotating the index plate 14.

Conventionally, since the index plate in the camera body changes as the number of photographic films taken changes, it is troublesome to switch between models having different numbers of pictures taken at the manufacturing site. However, the film cartridge 7 is provided with an index plate. As a result, the number of shots can be switched only on the film cartridge 7 side, and the camera body 1 side is independent of the number of shots.
Therefore, the film cartridge 7 and the camera body 1 can be built and stored, and the number of assembling steps and time can be reduced. Moreover,
Since it is possible to make a model having a different number of images by simply exchanging the film cartridge 7 having a simple structure, the work becomes easy.

In this embodiment, the camera body 1 is composed of the front cover 2 and the rear cover 3, but the front cover 2
The film cartridge 7 may be attached to the film cartridge 7 so that the film cartridge 7 also serves as the rear cover.

Next, another embodiment of the film-integrated camera will be described. In this embodiment, the film cartridge 3
0 is configured as shown in FIGS. 3 and 4, FIG. 3 is an exploded perspective view of the film cartridge, and FIG. 4 is a sectional view of the film cartridge. This film cartridge 30
In the cartridge main body 31, a storage chamber 32 and a winding chamber 33 are integrally formed, and an image frame 34 is provided between the storage chamber 32 and the winding chamber 33. The cartridge chamber 31 of the cartridge body 31 accommodates the cartridge 35, and the accommodation chamber 32 accommodates the photographic film F pulled out from the cartridge 35. Each time an image is taken, a winding knob (not shown) is rotated to rotate the winding spool 36 of the cartridge 35 projecting from the hole 33a of the winding chamber 33 of the cartridge body 31 to wind up the photographic film F, and the cartridge 35. It is designed to be stored in.

Two upper and lower guide rails 37 are formed on the cartridge main body 31 at a position where the photographic film F slides off the image frame 34 on the side of the taking lens. A back cover 38 is attached to the cartridge body 31 on the side opposite to the photographing lens.
A light shielding rib 39 is formed along the periphery of the film 8, and a plurality of rib-shaped film regulating members 40 are provided inside the light shielding rib 39.
Are formed in the moving direction of the photographic film F.

The upper and lower two guide rails 37 of the cartridge main body 31 are formed to be curved toward the photographing lens side, and the film regulating member 40 is formed to have a curved portion 40a concave toward the photographing lens side. The focus shift due to the surface curvature is corrected.

As described above, the upper and lower two guide rails 37 and the rib-shaped film regulating member 40 arranged in the film cartridge 30 maintain a constant tunnel amount T between the guide rail 37 and the film regulating member 40. The film position can be kept constant, and the focus reliability can be improved. Further, by using the rib-shaped film regulating member 40, the sliding area with the photographic film F is reduced, the occurrence of scratches on the photographic film F is small, and the rib-shaped film regulating member 40 has a strong strength. It is a film cartridge 30.

In this embodiment, the photographic film F containing 135 cartridges is used, but it is also possible to provide the film cartridge 30 with only the winding spool and the photographic film without using the cartridge.

Next, still another embodiment of the film-integrated camera will be described. In this embodiment, the film cartridge 50 is constructed as shown in FIGS. 5 and 6, FIG. 5 is an exploded perspective view of the film cartridge, and FIG. 6 is a sectional view of the film cartridge. The film cartridge 50 includes a cartridge body 51, a storage chamber 52 and a winding chamber 5.
3 is integrally formed, and an image frame 54 is provided between the storage chamber 52 and the winding chamber 53. Cartridge body 51
In the winding room 53, the cartridge 55 is stored, and the storage room 5
Photo film F drawn from Patrone 55 in 2
Is stored. Each time an image is taken, a winding knob (not shown) is rotated to rotate the hole 53 of the winding chamber 53 of the cartridge body 51.
Rotate the winding spool 56 of the cartridge 55 projecting from a to wind up the photographic film F,
It is designed to be stored in.

In this cartridge body 51, an arch-shaped guide rail 57 capable of correcting focus deviation due to two upper and lower field curvatures is provided at a position displaced from the image frame 54 on the side of the taking lens of the portion where the photographic film F slides. Has been formed.
A back cover 58 is attached to the cartridge body 51 on the side opposite to the photographing lens, and a light blocking rib 59 is formed on the back cover 58 along the periphery of the back cover 58.
An arch-shaped film regulating member 60 is arranged inside 9 at the side opposite to the photographing lens so as to be equidistant from the arch-shaped guide rail 57.

Thus, the arch-shaped guide rail 57 is formed.
The arch-shaped film regulating member 60 corrects the focus shift (field curvature) between the center and the periphery, which occurs in a limited number of taking lenses, and the arch-shaped guide rail 57.
With the arch-shaped film regulating member 60, variations in the film position are suppressed, and the focusability is improved. Further, the arch-shaped guide rail 57 and the arch-shaped film regulating member 60 make the film cartridge strong in strength.

Although the photographic film F containing 135 cartridges is used in this embodiment, it is possible to provide the film cartridge 50 with only the winding spool and the photographic film without using the cartridge.

[0038]

As described above, according to the first aspect of the invention, since the film cartridge is provided with the index plate, the number of shots can be switched only on the film cartridge side, and the camera body side is related to the number of shots. Disappear.
Therefore, the film cartridge and the camera body can be built and stored, the number of assembling steps and time can be reduced, and a model having a different number of images can be made only by exchanging the film cartridge having a simple structure, which facilitates the work.

According to the second aspect of the present invention, the guide rail and the film regulating member arranged in the film cartridge can keep the film position constant, and the reliability of focusing can be improved. Further, since the rib-shaped film regulating member is used, the photographic film is less likely to be scratched, and the film cartridge is strong.

According to the third aspect of the present invention, the arc-shaped guide rail corrects the focus deviation between the center and the periphery, which occurs in a limited number of taking lenses, and the arch-shaped guide rail and the arch-shaped film regulation. The member suppresses the variation in the film position and improves the focusability. Further, the arch-shaped guide rail and the arch-shaped film regulating member make the film cartridge strong in strength.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of a film-integrated camera.

FIG. 2 is a perspective view of a rotating mechanism that changes the index display on the index plate.

FIG. 3 is an exploded perspective view of a film cartridge.

FIG. 4 is a sectional view of a film cartridge.

FIG. 5 is an exploded perspective view of a film cartridge.

FIG. 6 is a sectional view of a film cartridge.

[Explanation of symbols]

 1 camera body 7 film cartridge 9 winding room 10 storage room 14 index plate F photographic film

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Mizoguchi Repair 1 Sakura-cho, Hino-shi, Tokyo Konica Stock Company

Claims (3)

[Claims] 1. A film-integrated camera in which a photographic film is loaded in a camera body in advance at the time of assembling, the photographic film is wound up and wound up for each photographing, and disassembled to take out the photographed photographic film. A film cartridge in which the storage chamber and the winding chamber are integrally formed, and an index plate for displaying the number of photographic films taken is rotatably provided in the film cartridge, and the film cartridge is attached to the camera body. By engaging the index plate with a rotation mechanism that changes the index display of the index plate each time one frame of the photographic film is wound on the camera body side, and the index display of the index plate is displayed on the camera body. A film-integrated camera characterized by being visible from the outside. 2. A photographic film in a film-integrated camera, wherein a photographic film is loaded in a camera body in advance at the time of assembling, the photographic film is wound up and wound up for each photographing, and disassembled to take out the photographed photographic film. Is housed in a film cartridge integrally formed with a storage chamber and a winding chamber, and in this film cartridge, a guide rail is provided at a position out of the image frame on the side of the photographic lens where the photographic film slides, A film-integrated camera characterized in that a rib-shaped film regulating member is arranged on the side opposite to the photographing lens. 3. A photographic film in a film-integrated camera, wherein a photographic film is preliminarily loaded in a camera body at the time of assembling, the photographic film is wound up and wound up at every photographing, and disassembled to take out the photographed photographic film. Is housed in a film cartridge in which a housing chamber and a winding chamber are integrally formed, and in this film cartridge, a portion of the portion on which the photographic film slides is deviated from the image frame on the side of the photographing lens due to field curvature. A film-integrated camera characterized in that an arch-shaped guide rail capable of correcting focus deviation and an arch-shaped film regulating member are arranged on the side opposite to the photographing lens so as to be equidistant from the arch-shaped guide rail. .