JPH068586Y2 - Film unit with lens - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of use] The present invention relates to a photographic film packaging unit (hereinafter referred to as "lens film unit") to which an exposure function for photographing is provided in advance.

[Prior art]

In conventional photography, a camera is usually loaded with a film. However, there are few people who carry the camera all the time, and there is the inconvenience that the camera is not at hand when I want to take a picture. In that case, you can purchase a film unit with a lens from the nearest store at a low price like you would buy a normal photographic film, and after shooting, ask for a DPE for each film unit with a lens, as with conventional photographic film. It would be very convenient if possible.

The applicant of the present invention first wrote a film with a lens, "It's a photo shoot."
(Product name) released. This lens-equipped film uses 110 film in a cartridge, and the front cover and the unit main body are screw-fastened, and the film pressing metal fitting attached to the back surface of the unit main body is screw-fastened.

[Problems to be solved by the invention]

However, in such a film unit with lens, it is necessary to simplify and automate the assembly work as much as possible and to manufacture it at low cost, but the work of attaching the front cover, the film pressing metal fittings, etc. with screws is not suitable for automatic assembly. , There is a trouble that takes time. Further, the lens-fitted film unit is constructed as small as possible in consideration of portability, so that it is difficult to provide a positioning means and it is difficult to perform automatic assembly.

The present invention has been made in view of such circumstances, and an object thereof is to propose a film unit with a lens suitable for automatic assembly.

[Means for solving problems]

In order to achieve the above-mentioned object, the present invention provides a film for photography in advance, which is provided on either one of a unit main body having a function of exposing the film and a lid attached to the unit main body. A convex portion is formed and a concave portion into which the convex portion is fitted is formed on the other side. When the convex portion is fitted into the concave portion from the front and rear direction of the unit body, the lid body is positioned vertically and horizontally with respect to the unit body. It is characterized by being connected to the unit body.

[Action]

The present invention provides a lid body by forming a convex portion on one side and a concave portion into which the convex portion fits on the other side between the unit body and the lid body attached to the unit body, and inserting the convex portion into the concave portion. Is assembled at a predetermined position of the unit body.
By fitting the convex portion into the concave portion in this manner, the lid body is regulated and positioned in the vertical and horizontal directions with respect to the unit body, and is thus suitable for automatic assembly.

[Example of device]

Hereinafter, preferred embodiments of a film unit with a lens according to the present invention will be described in detail with reference to the accompanying drawings.

In this embodiment, the most popular international standard IS
An example using a film unit with a lens using a 135 film with a cartridge having a shape defined by O1007-1979 will be described.

FIG. 1 shows the overall structure of a film unit with a lens according to the present invention, in which 10 is a unit body, 12 is a front cover, and 14 is a light-shielding lid. These are plastics such as styrene foam that do not affect the film. It is manufactured by molding and forms the main component of the film unit with lens. As will be described later, the front cover 12 and the light shielding lid 14 are joined to the unit main body 10 from the front and rear, and then the side edges 14A,
The portion 14B is fixed by ultrasonic welding or the like.

As shown in FIG. 2, after the film unit is assembled, it has a rectangular parallelepiped shape as a whole and is covered with a paper box (not shown), and a photographing operation is performed through a shutter button hole, a lens hole, etc. opened in the paper box. You can do it.

First, the unit body 10 will be described.
On top of the cartridge storage room 20 and roll film storage room 2
2 are formed at a predetermined interval, and the lower surfaces of the cartridge storage chamber 20 and the roll-shaped film storage chamber 22 have openings 20A and 22A.
Thus, the film 16 is loaded into the cartridge storage chamber 20 and the roll-shaped film storage chamber 22 from below. In the film unit according to the present invention, the film 1
The film 6 is wound into a roll, the front end of which is fixed to the core of the cartridge 24, and the film which has been photographed for each photographing operation is sequentially stored in the cartridge 24.

Between the cartridge storage chamber 20 and the roll-shaped film storage chamber 22 of the unit main body 10, there is a planar connecting portion 25,
An exposure frame is formed on the connecting portion 25. Patrone storage chamber 20, roll-shaped film storage chamber 22, connecting part 2
A rectangular frame 28 is formed around the periphery of the frame 5.
The lower surface of 8 has openings 20A and 22A of the storage chambers 20 and 22.
An opening communicating with is formed. A fitting recess 19 is formed on the lower surface of the center of the substrate 18, and U-shaped guide grooves 19A and 19A are formed on both edges of the recess 19.
A convex piece 73 of the front cover 12, which will be described later, is fitted into the concave portion 19.

A hoisting knob 30 is pivotally supported on the upper portion of the cartridge storage chamber 20, and a not-shown fork is formed on a rotating shaft of the hoisting knob 30 so as to engage with a spool shaft 32 of the cartridge 24. . Therefore, by rotating the winding knob 30 in the direction of the arrow in the drawing, the film 16 having been photographed is stored in the cartridge 24 from the roll-shaped film storage chamber 22.

Further, the unit main body 10 is provided with a photographing mechanism including a photographing number display plate 34, a winding lever 36, a shutter lever 38, shutter blades 40, and the like.

The shutter blades 40 open and close the photographing opening 42 shown in FIG. 3 during the shutter release operation. A plate-shaped lens holder 44 is provided on the front surface of the shutter blade 40, and a concave portion 46 is formed in a position corresponding to the opening 42 in the lens holder 44.
8 are arranged.

Next, the front cover 12 will be described. A shutter button opening 62 is formed in the upper plate 60 of the front cover 12, and a shutter button 64 is formed in the shutter button opening 62.
Are arranged. By pressing down the shutter button 64, the shutter lever 38 and the like described above are activated. Further, the upper plate 60 has a window 6 for displaying the number of shots.
6 is formed with an opening so that the display plate 34 can be displayed. On the front surface 68 of the front cover 12, a finder light blocking cylinder 70 and a photographing circular hole 72 are formed.

Further, a tongue-shaped protrusion 73 is formed on the lower portion of the front cover 12 so as to extend rearward. A ridge portion 73A is formed on the peripheral edge of the protruding piece 73, and the ridge portion 73A is the unit main body 1
It is fitted in the guide grooves 19A, 19A of the recessed portion 19 of 0.

Furthermore, a pair of rectangular small holes 76, 76 on the left and right sides of the photographing opening 72, and circular holes 79, 79, 79 different from these.
Are formed. The rectangular small holes 76, 76 are formed at positions corresponding to the locking claws 78, 78 formed on the unit body 10. The small holes 76, 76 are used as a stopper when the unit body 10 is connected to the front cover 12.
Circular holes are provided to position the front cover in place to facilitate automatic assembly with the body.

Next, the structure of the light shielding lid 14 will be described. The light-shielding lid 14 is composed of a back plate 80 and a bottom plate 82 (82 'is a film cartridge take-out lid) in a substantially L shape. Back plate 80
A viewfinder opening 84 is formed in the front view, and the viewfinder opening 84 is formed at a position corresponding to the light-shielding cylinder 70 of the front cover 12. In addition, the back plate 80 has a horizontally long opening 8
6, a part of the hoisting knob 30 is exposed after the assembly as shown in FIG. 2, and the hoisting knob 30 can be rotated from the outside of the back plate 80. Further, a curved film support surface 88 is formed on the back plate 80, and a large number of minute projections are formed on the film support surface 88 in both directions of the film. It will move along the support surface 88. Further, the bottom plate 82 of the light-shielding lid 14 is located below the substrate 18 when the light-shielding lid 14 is assembled to the unit body 10.
The openings 20A and 22A formed at the lower portions of the cartridge storage chamber 20 and the roll-shaped film storage chamber 22 are covered.

A tongue-shaped piece 83 having a step is formed on the right side of the bottom plate 82. On the other hand, as shown in FIG. 3, the unit main body 10 has a groove 23 in the lower inner wall of the roll film storage chamber 22.
The protruding peripheral portion 83 ′ of the tongue 83 is fitted in the groove 23. The tongue piece 83 is located on the bottom surface of the storage chamber 22 and forms a pedestal having a height difference between the lower end of the film pulled out from the cartridge and the lower end of the cartridge, and prevents the roll-shaped film from being misaligned. Also, this tongue 8
3 is formed in a tapered shape, and this tapered portion serves for accurate positioning in the final fitting process.

A groove 89 is formed on the periphery of the film supporting surface 88, and the ridge 29 of the unit body 10 is fitted into the groove 89 as shown in FIG. The lower portion of the storage chamber 22 is completely blocked from the light from below by the fitting of the above-mentioned protruding portion 83 ′ of the tongue 83 and the groove 23. Therefore, the film 16 is light-tight in the main body 1
It will be stored in 0.

With the lens-fitted film unit according to the present invention constructed as described above, the front cover 12 is first set with its front face facing downward during assembly, and the unit body 10 is pushed into this. In this case, the positioning circular hole 79 of the front cover 12 is positioned by being engaged with the projection (not shown) of the processing machine, and the projection 73 of the front cover 12 and the recess 19 of the main body 10 are fitted together. The front cover 12 is positioned at predetermined positions in the vertical and horizontal positions with respect to the main body 10. When pushed further in this state, the locking claws 78, 78 of the main body 10 are locked in the holes 76, 76 of the front cover 12, and the main body 10 is coupled to the front cover 12. Main body 1 assembled in this state
0 is similarly set again in the dark room using the circular hole 79, and the film 16 is loaded into the unit body 10 from the side of the unit body 10. Next, the light shielding lid 14 is pushed into the unit body 10. In this case, the tongue piece 83 of the bottom plate 82 can be used as a positioning protrusion, and when this is inserted into the groove 23 of the unit main body 10, the light shielding lid 14 becomes the tongue piece 8.
By fitting the groove 3 and the groove 3 with each other, the unit main body 10 is positioned at predetermined positions in front, rear, left and right positions and is coupled by ultrasonic waves or the like. Further, when the light shielding lid 14 is coupled to the unit body 10, the ridge 29 of the unit body 10 fits into the groove 89 of the light shielding lid 14, so that the film 16 is housed in the film chamber in a light-tight manner.

Since the protrusion 73, the tongue 83, and the grooves 19A and 23 are formed on the bottom in this way, a positioning member that does not affect other components can be provided.

In the above-described embodiment, the front cover and the main body are assembled first, but the main cover 10 is loaded with the film, and the rear lid 14 is assembled.
After that, the front cover 12 may be assembled.
Further, in the above-mentioned embodiment, the explanation was made using the 135 film, but the invention is not limited to this. Also, the film is not limited to one that is loaded in a state of being ejected from the patrone in advance, but is also of a type in which a rewinding member is provided so that the film is pulled out from the patrone each time a photograph is taken and rewound into the patrone by the rewinding member. You may apply.

The sensitivity of the film used in the present invention is ASA100,
Any of 200, 400, 1000, 1600, etc. may be used.

[Effect of device]

As described above, according to the lens-equipped film unit of the present invention, a convex portion and a concave portion for fitting are formed between the lid body and the unit body, and the lid portion is unitized by fitting the concave and convex portions. Since it is connected to the main body, the lid can be easily positioned at a predetermined position.

Therefore, the lens-fitted film unit according to the present invention is suitable for automatic assembling because the lid is positioned at a predetermined position simply by pushing the lid into the unit body from the front and rear.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of a film unit with a lens of the present invention, FIG. 2 is an assembled perspective view of a film unit with a lens, FIG. 3 is a perspective view showing a back surface of a unit body, and FIG. 4 is related to the present invention. It is sectional drawing which shows the sealing structure of the film chamber of a film unit. 10 ... Unit main body, 12 ... Front cover, 14 ... Back cover, 14A, 14B ... Side edges, 16 ... 135 film, 19 ... Fitting recess, 29 ... Sealing protrusion,
40 ... Shutter blade, 48 ... Photographing lens, 73 ...
Protrusion, 89 ... Seal groove.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Seiji Asano 1-324 Uetakecho, Omiya City, Saitama Prefecture Fuji Photo Koki Co., Ltd. Koki Co., Ltd. (56) Reference JP-A-47-9180 (JP, A) Actually open 63-35032 (JP, U) Actually open 63-6431 (JP, U) Actually open 57-139940 ( JP, U)

Claims (4)

[Scope of utility model registration request] 1. A lens-equipped film unit comprising a unit body and a lid for preliminarily incorporating a photographic film in a light-shielding state, and a means for exposing the film. One of them is formed with a tongue-shaped piece, and the other is formed with guide portions that engage with both side portions of the tongue-shaped piece, and the tongue-shaped piece is used as a guide portion from the front-back direction of the unit main body. A film unit with a lens, characterized in that the lid body is joined to the unit body by positioning the lid body vertically and horizontally with respect to the unit body by being fitted along the unit body. 2. The film unit with lens according to claim 1, wherein the lid is a front cover. 3. The lens-equipped film unit according to claim 1, wherein the lid is a film light-shielding lid provided at a rear portion of the unit main body. 4. The utility model registration claim, wherein the tongue-shaped portion formed on the film light-shielding lid is located below the storage chamber for the unexposed film and also serves as a pedestal for preventing misalignment of the unexposed film. The film unit with a lens according to the third item of the above.