JP3136366B2 - Manufacturing method of imaging unit - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for manufacturing a photographing unit in which a film (silver halide color light-sensitive material) is loaded in a photographable state in advance and a photograph can be taken immediately.

[0002]

2. Description of the Related Art In recent years, a so-called lens-equipped film unit (hereinafter also referred to as the present camera), which is sold with a simple plastic camera loaded with a silver halide color photosensitive material, has become widespread. This frees the trouble of loading a film into an ordinary camera and the failure due to a loading error, and also increases the chance of taking a picture due to its simplicity. Also, with a strobe, telephoto,
Ultra wide angle type etc. have been developed and put into practical use.

[0003] As is well known, a film unit with a lens is a simple camera in which a photographic material is pre-loaded by a maker. The user uses the film unit only for photographing one loaded photographic material. Since the film unit is sent to the developing laboratory with the photosensitive material stored therein, the camera has an extremely simple structure, and the cost is reduced.

Therefore, the lens-fitted film unit body and some parts are made of lightweight plastic,
It also has the advantage of being portable.

A film unit with a lens is usually taken by a user and then sent to a photo lab with the exposed film remaining in the film unit, where the film is separated from the camera body, developed, printed, and given to the user. . On the other hand, the camera body is recovered from the developing laboratory and a part or the front part is destroyed for recycling.

A method of reloading the unexposed film as it is into the collected camera body and providing it again to the user as a film unit with a lens is the most effective reuse method (reuse) and is desired.

[0007]

However, once the unexposed film is loaded into the camera body once recovered and used by the user and supplied to the market, the photograph obtained by the lens-equipped film unit will have spot-like unevenness. It was found to be unfavorable because of the occurrence of mildew, remarkable mold generation, and fogging, desensitization, discoloration and the like of unknown cause.

In general, the camera body may be cleaned, disinfected, and disinfected after collection. However, if a disinfectant or a disinfectant is used, the surface or inside of the camera body, which is mainly made of plastic, is removed. It is not practical because it deteriorates, deteriorates metal parts and electric parts, and adversely affects the photographic properties and physical properties of the unexposed film to be loaded.

[0009]

SUMMARY OF THE INVENTION It is an object of the present invention to provide a patrone chamber for accommodating a patrone on one side of a screen frame, and an unexposed unexposed film rolled out from the patrone on the other side. In a method of manufacturing a photographing unit having a scroll chamber for storing in an unexposed film state in which an unexposed film can be photographed in advance, from a camera body portion collected by a user after taking out a film using the film,
A photographing method comprising the steps of: removing a cover member provided outside the camera body; and sterilizing the camera body from which the cover member has been removed by irradiation with sterilizing light or sterilizing gas. Achieved by the unit manufacturing method.

In the present invention, the germicidal light used for germicidal light irradiation is preferably ionizing radiation (β-ray, γ-ray, X-ray) or ultraviolet light, and particularly preferably ultraviolet light in a wavelength range of 250 nm to 260 nm. The amount of ultraviolet light to be irradiated is 0.1 to 1
000 μW · S, particularly preferably in the range of 1.0 to 100 μW · S.

The germicidal gas used in the present invention is preferably any of ozone, ethylene oxide, propylene oxide and formaldehyde.

In a more specific disinfection treatment step, for example, sterilization light irradiation is continuously or discontinuously applied from a plurality of directions to a recovery camera main body that continuously flows on a conveyor, and the outside of the step is performed. In a preferred embodiment, the germicidal light is shielded so as not to leak germicidal light.

In the sterilization and disinfection treatment step using a sterilizing gas, it is preferable that the collecting camera main body is put in a closed container, the sterilizing gas is injected and held for a certain period of time, and the sterilizing gas is discharged after completion.

The germicidal light irradiation or the germicidal disinfection treatment using the germicidal gas can effectively perform the germicidal disinfection treatment without damaging the camera body of the photographing unit.

[0015]

FIG. 1 shows the appearance of a film unit with a lens, which is a photographing unit of the present invention. The camera is provided with a 35 mm film (J135) loaded in advance.
After the shooting, the film is sent to the maker side without being rewound and is stored in the camera and taken out of the camera, where the film is developed and printed.

The unexposed film used in the camera is I
The film is loaded in a state of being wound on a spool with a film having an SO sensitivity of 400, and is wound into a cartridge by winding up each time a photograph is taken. Therefore, the photographed film can be taken out from the camera in the light room on the maker side.

The photographed film can be easily taken out by bending a part of the back cover. Therefore, if the camera portion is checked, a new unexposed film is loaded and the back cover is replaced. It can be reused.

A patrone and a spool having an outer diameter of 20.6 mm and a spool having a diameter of 9 mm, which are smaller in outer diameter than those of a generally used patrone (JIS K7528) and a spool, are used as the patrone and the spool mounted on the camera. .

As a result, the total thickness of the camera can be suppressed to about 24 mm, and an ultra-thin compact camera is realized.

The camera is provided with a cardboard carton (paper cover) on which a product name, a simple usage method, and the like are displayed on a part of its outer surface.

FIG. 2 is a developed view showing the configuration of the camera.

Reference numerals 10, 20, and 30 denote a camera body, a front cover, and a back cover, which are main components of the camera, respectively, and reference numeral 50 denotes a film winding unit.

The camera main body 10 is provided with the members constituting the film winding unit 50 in a single unit, and a shutter case 11 for accommodating shutter blades.

The shutter case 11 is fixed by engaging claws 11A protruding on both sides with a locking portion 10A on the front surface of the camera body 10, and connects the shutter blades to the film winding unit 50.

Further, on the front surface of the shutter case 11, a single lens having a focal length of f = 30 mm, and a photographing lens 12, which is a fixed stop having an aperture of F9.5, is dropped, and a guide pin 11B is provided.
Is covered by a lens presser 13 having a slide 13A that engages with the lens holder.

The above-mentioned camera body 10 and shutter case 11
Is made of a black matte plastic material having some elasticity, including the front cover 20 and the back cover 30 described above.

The integral fixing of the lens holder 13 to the camera body 10 is completed by mounting the front cover 20 to the camera body 10.

Prior to mounting the front cover 20 on the camera body 10, the objective lens 21 of the finder is dropped on the front surface of the front cover 20 in advance and fixed by the engagement of the decorative cover 22. The makeup cover 22 has a guide pin 22A and four claws 22B on the back.
With holes 20A and 4 on the front of the front cover 20, respectively.
It is engaged with the locking portion 20B at the location and is attached.

The front cover 20 is further attached with an eyepiece 23 of a finder on the rear surface by taking a picture.
Attached to the front of 10. In this way, the objective lens 21 and the eyepiece 23 constitute an inverted Galileo finder.

The front cover 20 has a hole 20C, a claw 20D, and three locking portions 20E on the rear surface, and a guide pin 10E and a claw 10F on the front surface of the camera body 10 and a locking portion 10G on the side surface. Engage and attach.

The lens retainer 13 is fixed to the camera body 10 by a device for engaging the front cover 20 with the camera body 10.

The camera body 10 mounted with the front cover 20
A cartridge S and a spool S2 around which a cartridge P1 and an unexposed film F are wound are loaded in a cartridge chamber and a scroll chamber (both not shown) formed on the back surface.

The front end of the film F is a patrone P
1 and is loaded in the patrone P1 in a state where it can be wound.

A back cover 30 is attached to the back of the camera body 10 loaded with the film F, so that the light shielding of the film F and the restriction on the focus position are maintained.

The back cover 30 has claws 30A and 30B on its front surface and locking holes 30C and 30D on its side surface.
The claw 30A and 30B are the locking parts of the camera body 10
Holes 30C and 30D on the other hand are 10H and 10J,
K and 10L are engaged and fixed.

Next, the details of the film winding mechanism 50, the sector charging mechanism 60 and the film counter mechanism 70 will be described.

FIG. 3 shows each of the above-mentioned mechanisms at an angle as viewed from the rear side of the camera, and FIG. 4 shows a film and a patrone loaded in the camera.

In FIG. 3, reference numeral 10 denotes a unit having a film winding mechanism and the like, which is a camera body. The camera body 10 has two storage chambers for film winding and film loading, namely, a patrone chamber 15A and a scroll chamber 15B in the same plane on both sides of a screen frame 16 as an exposure unit.
Is provided, and the J135 film FL wound around the patrone P1 as the storage container shown in FIG. 4 is loaded.

The film FL used in the camera of the present embodiment is a roll film J135 similar to a general camera, and is previously stored in a patrone in a dark room or the like using the patrone as a storage container.
The end is fixed to one spool S1 and the predetermined number of frames are wrapped in a length that can be photographed, and a film of a certain length comes out from the film drawer of the cartridge P1. The film in this state is loaded into the camera. The loading method will be described below.

The patrone P1 is loaded into the patrone chamber 15A such that the spool S1 of the patrone P1 engages with the fork of the hoisting fork 52. On the other hand, the spool S2 is also inserted into the scroll chamber 15B. In this embodiment, the film FL is pulled out until the tip of the film notch FN of the film FL matches the index 17A at the lower portion of the lower rail surface, and the tip of the film FL is connected to the slit SL of the spool S2.
And the perforation P of the film FL is locked to the nail H.

Next, the back cover 30 is put on the back cover 30 to make the cover light-tight.
Then, the camera in this state is attached to the film winding device, and the film FL is transferred to the spool S2 of the scroll chamber 15B.
And the loading of the film is completed. That is, by loading the film FL in this manner, the film FL is sequentially wound into the patrone P1 for each photographing, and after the photographing of a predetermined number of frames is completed, in the present embodiment, two frames are skipped. Then, the photographed film is wrapped in the patrone P1, leaving the required length without the wrapping of the leading end of the film FL in the patrone. Therefore, this patrone can be taken out of the camera in a bright room.

Next, the mechanism of the main body will be described.

In the camera body 10, a film winding mechanism 50 including a photographing lens 12, a sector charging mechanism 60,
The main mechanism of the film counter mechanism 70 is incorporated therein.

First, the film winding mechanism and the sector charging mechanism will be described.

Reference numeral 51 denotes a film winding knob. The film FL loaded as described above is wound by turning the film winding knob 51 counterclockwise. The cam 55 having a fan-shaped cam portion 55B at the lower portion thereof, which is coaxial with the eight-tooth sprocket gear 54 meshing with the perforation P of the film FL, has just one counterclockwise direction when the film is wound.
It is designed to rotate.

That is, the film is wound up with the length of eight perforations, which is the number of teeth of the sprocket gear, as one frame, and the frame size is a so-called full size frame size of 24 × 36 mm.

The rotation of the cam 55 in the counterclockwise direction naturally rotates the sector cam portion 55B in the counterclockwise direction as described above, and in the process, the charge lever 61 is moved by the sector cam portion 55B to the charge lever shaft 63. Is rotated clockwise against the spring force of a charge lever spring 64 that urges the counter lever in a counterclockwise direction, and the rising portion 65B of the sector lever 65 is rotated by a triangular ketobashi 61C provided on the charge lever 61.
Is pressed, and eventually the vehicle gets over the rising portion 65B to charge the sector charging mechanism as shown in the figure.

The pin 65C of the sector lever 65 and the camera body 10
A sector spring 67 is stretched between the pins 18C provided on the sector lever 67.
The left end of the long hole is brought into contact with a pin 18B provided on the camera body 10 that guides the long hole slidably and rotatably, and the sector lever
The arm plate 65D provided on the camera body 10 is provided with a pin 18 provided on the camera body 10.
It comes into contact with E. A sector drive pin 65A for operating a sector 66 pivotally supported by a sector pin 18D provided on the camera body 10 is inserted into the fork of the sector 66.

As will be described later, the cam stopper after photographing is completed
The protrusion 62D of 62 is pulled out from the groove 55A of the cam 55,
The arm portion 57A of the hoisting stopper 57 changes from the state shown in the figure to change the arm portion 61A of the charge lever 61 and the arm portion of the cam stopper 62.
It comes off from each edge of 62A, and is in contact with the end face of the arm 61A by the spring force of the hoisting stopper spring 58 that urges clockwise. When the cam 55 rotates just once by the film winding as described above and the groove 55A of the cam 55 returns to the initial position, the spring force for urging the cam stopper 62 by the horizontal end of the charge lever spring 64 in the clockwise direction. As a result, the projection 62D of the cam stopper 62 jumps into the groove 55A. By this jumping operation, the locking of the arm portion 57A of the hoisting stopper 57, which has been locked on the end surface of the arm portion 62A of the cam stopper 62 at this time, is released.

The outer peripheral cylindrical surface of the film winding knob 51 is a ratchet gear, and the V-shaped projection at the tip of the winding stopper 57 is released by the release of the lock so that the ratchet gear is actuated by the spring force of the winding stopper spring 58. The film winding knob 51 jumps into the tooth space of the gear 51A, thereby preventing the film winding knob 51 from rotating in the counterclockwise direction. That is, when the film winding is completed, the film winding knob 51 is prevented from rotating further.

In the camera body 10, the tip of a reverse rotation preventing claw 53 utilizing the elasticity of a resin material is pressed against the ratchet gear 51A so as to prevent the film winding knob 51 from rotating in the opposite direction of winding. It has become.

By pressing the release button 25 of the front cover 20, a release button pin 25A implanted on the back of the release button 25
Operates in the direction of arrow A. That is, the front cover 20
When the camera is attached to the camera body 10,
By the operation of the tip of the release button pin 25A in the direction of arrow A described above, the hoisting stopper 57 rotates counterclockwise against the spring force of the hoisting stopper spring 58. Then, the arm portion of the charge lever 61 is moved from the end surface of the arm portion 57A of the hoisting stopper 57.
The edge of 61A is disengaged and the charge lever 61, and thus the cam stopper 62, is rotated counterclockwise by the spring force of the charge lever spring 64.

Then, the counterclockwise rotation of the charge lever 61 by the spring force of the charge lever spring 64 stronger than the sector spring 67 causes the charge lever 61 to rotate.
C hits the rising portion 65B of the sector lever 65 and comes off the rising portion 65B. Therefore, the sector lever 65 is pivoted around the pin 18B in the long groove of the sector lever.
And rotates counterclockwise against the pulling force of the armature, and returns to the original position due to the pulling force of the sector spring 67. Therefore, the sector drive pin
In 65A, the sector 66 is rotated around the sector pin 18D to expose the film, and then closed.

The shutter speed performed by opening and closing the sector 66 is set to a fixed shutter speed of 1/100 sec.

On the other hand, the cam stopper 62 also rotates counterclockwise together with the charge lever 61 as described above,
The projection 62D of 62 comes out of the groove 55A of the cam 55. Therefore, even if you stop pressing the release button,
The arm portion 57A of the charge lever 61 is urged clockwise by the spring force of the hoisting stopper spring 58.
Is stopped by the end face of
The projection does not lock the ratchet gear 51A of the hoisting knob 51. Therefore, the next film winding can be performed.

Next, the film counter mechanism will be described.

As described above, reference numeral 72 engages with the V groove 56A provided at the upper end of the cam shaft 56 implanted in the cam 55 which rotates integrally with the sprocket gear 54, so that the film is wound up by one frame and the cam shaft 72 is rotated. Reference numeral 56 denotes an index gear that rotates clockwise by one tooth for each rotation.

An index plate 71 is attached to the upper surface of the index plate gear 72 so that the number of remaining photographable films can be displayed through the film counter window 26 on the upper surface of the front cover 20.

A projection 72A is provided on the lower surface of the index plate gear 72. When the film is wound up after a predetermined number of frames have been taken, the projection 72A is brought into contact with the projection 61A of the charge lever 61.
E and another protrusion 62 </ b> E of the cam stopper 62, so as to break and enter. Then, the protruding portion 72 </ b> A is
The film is wound up by one frame by entering between E and 62E, and even when the cam 55 rotates once and the charging of the sector is completed, the two projecting portions 61E and 62E are brought into contact with the projecting portion 72A of the index wheel gear 72. The movement is blocked, the charge lever 61 cannot be operated, and the protrusion 62D of the cam stopper 62 is also in the groove of the cam 55.
You will not be able to jump into 55A. The arm portion 57A of the hoisting stopper 57 abuts on the end surface of the arm portion 62A of the cam stopper 62 by the spring force of the hoisting stopper spring 58, and the V-shaped protrusion at the tip of the hoisting stopper 57 locks the ratchet gear 51A. Also, it is impossible to operate the charge lever 61 to open and close the sector to expose the film.

As described above, in the present embodiment, when two frames of the film are fed, the index plate gear 72 rotates by two teeth, and the rotation causes the protrusion 72 of the index plate gear 72 to rotate.
A is a charge lever that presses the protrusion 61E.
The movement of 61 is prevented, but another protrusion 62 of the cam stopper 62
It comes out of E. Therefore, the protrusion 62D
Jumps into the groove 55A of the cam 55, the locking of the hoisting stopper 57 is released, the hoisting knob 57 is locked by the hoisting stopper 57, and the film cannot be wound. Since the movement of the charge lever 61 is blocked as described above, the film cannot be exposed. In this way, the tongue at the leading end of the film is prevented from being caught in the cartridge, and the tongue of the required length is secured. Therefore, in order to make the camera compact, there is no problem in drawing out the film from the patrone at the time of development even if a patrone having a small outer diameter is used.

The lens-equipped film unit of the embodiment described above is made thin by effectively using a plastic material to reduce the weight, and the total weight is reduced to 85 g or less.

In the present invention, for example, in the film unit with a lens shown in FIGS. Done.

Prior to performing this treatment, it is preferable that the carton shown in FIG. 1 has been removed. In addition, it is preferable that a part or the whole of the back cover is removed so that the above-described processing works effectively to the inside of the camera body.

The present invention is not limited to a system in which a color photosensitive material is wound around a patrone. For example, a camera part (b) and a cartridge part (a) as shown in FIG. 5 may be used, wherein the cartridge part is detachable from the camera part and the cartridge part also serves as a camera part back cover. In the figure, reference numeral 521 denotes a cartridge unit having a built-in film, 522 denotes a main body of the photographing unit, 523 denotes a photographing lens, 524 denotes a shutter and a fixed aperture, and 525 denotes the cartridge unit 521 to the main body 522 of the photographing unit. This is a locking portion that locks and sets a photographable state. The film unit with the lens having such a configuration has a great advantage in reusing (reusing) the camera portion and reusing (recycling) the cartridge portion.

In the present invention, as described in the embodiment, for the purpose of weight reduction and low cost, it is preferable that a part of the main body and parts of the photographing unit is made of plastic. Preferred plastic conditions include excellent light-shielding properties, little effect on the photographic properties of the photosensitive material,
If it satisfies that reproduction and use are easy, known materials can be used. Preferred specific examples are polystyrene added with carbon black or a pigment to impart light-shielding properties,
Polypropylene, polyethylene, polyvinyl chloride, polymethyl methacrylate, polyethylene terephthalate,
Examples include cellulose acetate esters and copolymers thereof.

The film unit with lens of the present invention is preferably provided with a carton (cover) as shown in the embodiment.

The cover is preferably made of a material capable of absorbing impact, for example, paper, sponge, rubber, leather, cloth and the like. The shape of the cover does not matter, but it is preferably a band or a box.A cover with holes is provided so that the function and operation of the lens unit, finder unit, shutter button unit, film winding unit, etc. of the photographing unit are not hindered. preferable.

The film unit with a lens of the present invention is preferably hermetically sealed in a plastic case, a moisture-proof bag, or the like after manufacture and before use. Inside the sealed package, the relative humidity at 25 ° C is 30-70%, preferably 40-70%.
It is 60%, particularly preferably 45 to 55%, and the oxygen partial pressure can be made lower than the atmosphere by filling with an inert gas.

[0069]

According to the production method of the present invention, although it is reused, it has been disinfected and disinfected and provided to the user without any trouble as in the case of a new photographing unit. A good photograph was obtained.

[Brief description of the drawings]

FIG. 1 is an external perspective view showing one embodiment of a film unit with a lens of the present invention.

FIG. 2 is an exploded perspective view of the overall configuration of the embodiment shown in FIG.

FIG. 3 is an exploded perspective view of a mechanism of the embodiment shown in FIG. 1;

FIG. 4 is a perspective view showing a film and a patrone used in the present embodiment.

FIG. 5 shows a cross-sectional view of another embodiment.

[Explanation of symbols]

 10 Camera body 12 Shooting lens 21 Objective lens (finder) 23 Eyepiece (finder) 66 Sector (shutter blade) FL film P1 Patrone

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-63-199350 (JP, A) JP-A-64-7060 (JP, A) JP-A-51-101124 (JP, A) JP-A-63-1993 33302 (JP, A) JP-A-56-168839 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) G03C 3/00 G03B 17/04

Claims (1)

(57) [Claims] 1. A patrone chamber for storing a patrone on one side of a screen frame, and a scroll chamber for storing the unexposed film in a bare state unwound from the patrone and wound on the other side, In a method of manufacturing a photographing unit in which an unexposed film is previously loaded in a photographable state,
A step of removing a cover member provided outside the camera body from the camera body collected after the user has taken out the film by using the user, and irradiating the camera body with the cover member removed with sterilizing light, or Sterilizing with a sterilizing gas.