JPH05281669A - Film unit provided with lens and its manufacture - Google Patents

Abstract

PURPOSE:To automatically detect and adequately select whether a camera collected after a user's use can be reused or not at the time of reusing the camera. CONSTITUTION:The camera collected after the user's use displays an identification mark M on the main body rib surface 10M of a camera main body 10 according to the number of reusing times. The identification mark M is stamped by using a white and unerasable ink, the mark M1 expresses the first time of reusing, the M2 expresses the second time of reusing, and the M3 expresses the third time of reusing. One of the marks M1, M2, and M3 displayed on the collected camera or non-displaying is automatically detected to select whether the camera is reused or not.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is provided with an exposure and film winding function so that a pre-loaded film can be immediately photographed, and an unexposed film can be loaded again by the manufacturer after use. And a method for manufacturing a film unit with a lens.

[0002]

BACKGROUND OF THE INVENTION 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 light-sensitive material, has become widespread. This frees the user from the trouble of loading a film into an ordinary camera and the failure caused by a mistake in loading the film, and increases the opportunity for taking photographs due to its simplicity. Also, depending on the purpose of shooting, with a strobe, telephoto type,
Ultra wide-angle type has been developed and put to practical use.

Up to now, the lens-fitted film unit is a simple type camera in which a photographic material is preliminarily loaded by a maker as well known, and the user uses it only for photographing one sensitized material loaded, and after the photographing is finished. Since the lens-equipped film unit is sent to the developing station in a state where the light-sensitive material is stored, the camera has an extremely simple structure, and the cost is reduced.

Therefore, the main body of the film unit with a lens and some of the parts are made of lightweight plastic and have an advantage that they are convenient to carry, but on the contrary, they are designed to be used only once. It was

Therefore, the lens-fitted film unit is usually sent to a developing station after the user has photographed it, with the exposed film still inside, where the film is separated from the camera body to be developed and printed for the user. Passed. On the other hand, the camera body was collected from the photo lab and discarded. Or, one step further, some or all was being crushed for recycling.

However, in order to increase the effective use of resources,
As proposed by the applicant of the present application, a method of reloading the unexposed film as it is into the collected camera body and supplying it to the user as a film unit with a lens again is the most effective reuse method (reuse). It is rare.

[0007]

However, the recovered cameras often have scratches and stains on their appearance, and also in terms of function, they are exhausted of the battery and malfunction of the mechanical section. Therefore, before loading and providing the unexposed film again, the quality, cleanliness, and beauty of the new product must be guaranteed in advance.

[0008] The reused lens-equipped film unit is subject to functional deterioration such as wear and dirt of the film winding mechanism and its related mechanism with the number of reuses, and there is a limit to guaranteeing quality equivalent to a new product. is there. The results of the investigations and experiments conducted by the applicant show that reuse is limited to three times, so it is necessary to properly select whether or not reuse can be endured before loading unexposed film and checking the quality. is there. Focusing on this point, the present invention provides a method of manufacturing a lens-equipped film unit that can identify the number of reuses of collected cameras, automatically detect whether reuse is possible, and select the same to guarantee quality equivalent to a new product. Is the task objective.

[0009]

[Means for Solving the Problems] The purpose is to use a lens-equipped film unit in which an unexposed film is preliminarily loaded so that the user can take the unexposed film, and then to recollect the unexposed film. In the method for manufacturing a lens-equipped film unit to be loaded into a lens-equipped film unit, an identification mark capable of automatic identification corresponding to the number of reuses is displayed on the unit body of the lens-equipped film unit in which the exposed film is taken out and collected. This is achieved by the method of manufacturing a film unit with a lens.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention is a perspective view showing the external appearance of a lens-equipped film unit (hereinafter referred to as the present camera) in FIG. 1, an exploded perspective view showing the configuration of the unit in FIG. 2, and FIG. 4 is a developed perspective view showing a film winding mechanism of the unit, an explanatory view of a film loaded in the unit of FIG. 4, a perspective view of a camera showing the reuse number identification mark of FIG. 5, and a perspective view of FIG. The description will be made with reference to a diagram showing another reuse number identification mark, a flow chart showing a process of reuse of the unit in FIG. 7, and a diagram showing inspection items of the unit in FIG. However, the present invention is not limited to this embodiment.

FIG. 1 shows the appearance of a film-integrated camera. The camera is pre-loaded with a 35 mm film (J135) and sold, and the film is housed in the camera without rewinding after shooting. The film is sent to the lab as it is for film development and printing.

The unexposed film used in this camera is loaded in a cartridge, and after the camera is kept in a light-tight state, the winding shaft on the film winding chamber side is driven to drive the film inside the cartridge. Wind all the film into the film winding room.
The user winds the film every time the photograph is taken, so that the photographed film is wound in the patrone.
Therefore, in the laboratory, the film that has been taken can be taken out from the camera in the bright room without changing the cartridge.

In addition, the taken-out film is taken out from the back cover or the like.
This can be easily done by bending a part of the outer shell member, so that if the manufacturer replaces the back cover, a new unexposed film can be loaded and reused, that is, a reuse camera.

As the cartridge loaded in the camera, a cartridge having an outer diameter of φ20.6 mm, which is different from a cartridge (JISK7528) which is generally used, is used. Although the following description will be given using this small-sized patrone, the present invention is not limited thereto and can be applied to a normal patrone.

As a result, the thickness of the camera can be suppressed to around 24 mm except for the lens barrel portion having the taking lens, and an ultra-thin compact camera is realized.

The present camera is provided with a cardboard carton 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 development view showing the structure of the camera.

Reference numerals 10, 20 and 30 denote a camera main body, a front cover and a back lid, which are main components of the camera, and 40 denotes a built-in strobe unit and 50 and 60.
Reference numerals 70 and 70 are film winding, sector charge and film counter mechanisms, respectively.

When the camera body 10 is used alone, each member constituting the film winding mechanism 50, the sector charge mechanism 60, and the film counter mechanism 70 is mounted, and the shutter case 11 for housing the sector is mounted.

The shutter case 11 is fixed by engaging claws 11A projecting on both sides with a locking portion 10A on the front surface of the camera body 10, and links the sector with the sector charge mechanism 60.

Further, on the front surface of the shutter case 11, there is provided a slit 13A which is a single lens having a focal length f = 30 mm and a photographing lens 12 having an aperture of F9.5, which is engaged with the guide pin 11B. Covered by lens presser 13.

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

On the other hand, the strobe unit 40 is mounted and supported on the basis of holes 40A and 40B on the substrate which engage with the guide pins 10B and 10C on the front surface of the camera body 10, respectively.

The upper and lower battery sections 41 which are integrated with the strobe unit 40 are inserted into the upper and lower slit holes 10D of the camera body 10 and projected into the battery chamber on the back side of the camera body 10 to form an AA battery E as a strobe charging power source. To pinch.

The integrated capacitor C is stored in a capacitor chamber formed under the shutter case 11.

The lens retainer 13 and the strobe unit 40 described above.
The fixing and integration of the above with the camera body 10 is completed by mounting the front cover 20 on the camera body 10.

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

The front cover 20 is further mounted on the front surface of the camera body 10 after the eyepiece lens 23 of the finder is engaged and mounted on the back surface.

The front cover 20 is provided with a hole 20C, a claw 20D and three engaging portions 20E on the back surface, and each of them is provided with a guide pin 10E, a nail 10F and a side engaging portion 10G on the front of the camera body 10. It is fitted and attached.

By mounting the front cover 20 on the camera body 10, the lens retainer 13 and the strobe unit 40 are fixed to the camera body 10.

The camera body 10 with the front cover 20 attached
In the cartridge chamber 15A and the scroll chamber (film winding chamber) 15B formed on the back surface of the cartridge, the cartridge P1 and the spool S2 in which the leading ends of the unexposed film F are locked are loaded, respectively.

The other end of the film F is locked to the spool S1 in the cartridge P1. Even if the film in the cartridge is wound up by the spool S2 after the film is loaded, the other end is locked to the spool S1. Therefore, it can be rolled up in the Patrone P1 every time the shooting is completed.

A back cover 30 is attached to the back surface of the camera body 10 loaded with the film F to keep the light shielding of the film F and the regulation of the focus surface position.

The back cover 30 is provided with claws 30A and 30B on the front surface thereof and locking holes 30C and 30D on the side surfaces thereof.
Claws 30A and 30B are engaged with the camera body 10 when mounted on the camera.
On the 10H and 10J, the one holes 30C and 30D are the nails 10 of the camera body 10.
It is fixed by engaging K and 10L.

After the back cover 30 is mounted, a predetermined film winding operation is performed to set a photographable screen, and the carton shown in FIG. 1 is mounted to complete the process.

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

FIG. 3 and FIG. 4 show the above-mentioned respective mechanical parts at an angle as viewed from the rear side of the camera.

In the camera body 10, a cartridge chamber 15 is provided as two storage chambers for film winding and film loading in the same plane on both sides of the screen frame 16 which is the exposure unit.
A and a scroll chamber 15B are provided, and J135 caught in the cartridge P1 which is the storage container shown in FIG.
The film F is loaded.

The film F used in this camera of this embodiment is a roll film J135 or a slightly thin roll film having a thickness of 130 to 140 μm, which is the same as a general camera. The end portion is fixed to S1 and the film is wound up for a predetermined number of frames so that the film can be photographed, and a film of a certain length has come out from the film outlet of the cartridge P1. The film in this state will be loaded into the camera. The loading method will be described below.

The cartridge P1 is loaded into the cartridge chamber 15A so that the spool S1 of the cartridge P1 is engaged with the fork 52 of the hoisting fork 52. On the other hand, the spool S2 is also inserted in the scroll chamber 15B. Then, the tip of the film notcher FN of the film F is located at the lower portion of the lower rail surface, which is an index 17.
The film F is pulled out until it fits A, and the tip of the entire film F (however, the other end is within the range where it does not separate from the spool S1 of the cartridge P1) is inserted into the slit SL of the spool S2, and the perforation P of the film F is hooked on the nail H. ..

Next, the back cover 30 is covered and the cover is made light-tight.
Then, the main camera in this state is attached to the film winding device, the film F is wound around the spool S2 of the scroll chamber 15B, and the loading of the film is completed. That is, by loading the film F in this way, the film F is sequentially wound into the patrone P1 for each shooting, and when two films are fed in advance after the shooting of a predetermined number of films is completed, The photographed film is wound into the cartridge P1 while leaving the required length without the leading end being wound into the cartridge. Therefore,
This patrone can be taken out from this camera in a bright room.

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

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

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

Reference numeral 51 is a film winding knob, and the film F loaded as described above is wound up by rotating the film winding knob 51 counterclockwise. A cam 55 coaxial with an eight-toothed sprocket gear 54 meshing with the perforation P of the film F and having a fan-shaped cam portion 55B at the bottom.
Is designed to rotate exactly once counterclockwise by winding the film.

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

As the cam 55 rotates in the counterclockwise direction, the fan-shaped cam portion 55B naturally rotates in the counterclockwise direction as described above. In the process, the fan-shaped cam portion 55B moves the charge lever 61 and the charge lever shaft 63. Is rotated clockwise against the spring force of the charge lever spring 64 that urges the charge lever 61 in a counterclockwise direction, and the triangular ketobashi 61C provided on the charge lever 61 causes the rising portion 65B of the sector lever 65 to rise.
Is pressed, and the rising portion 65B is eventually overcome to charge the sector charge mechanism as shown in the figure.

Pin 65C of the sector lever 65 and the camera body 10
A sector spring 67 is stretched between the pins 18C provided at the sector lever 67, and the tensile force of the sector spring 67 causes the sector lever 65 to move.
The left end of the elongated hole is brought into contact with a pin 18B provided on the camera body 10 that guides the elongated hole of the camera in a slidable and rotatable manner, and the sector lever
Pin 18 provided on camera body 10 with arm plate 65D provided on 65
It comes in contact with E. Further, a sector drive pin 65A for actuating the sector 66 pivotally supported by the sector pin 18D provided on the camera body 10 is inserted in the forked portion of the sector 66.

As will be described later, the cam stopper after shooting is completed.
The projecting portion 62D of 62 is removed from the groove portion 55A of the cam 55,
The arm portion 57A of the hoisting stopper 57 changes from the state shown in the drawing to change the arm portion 61A of the charge lever 61 and the arm portion of the cam stopper 62.
The arm 62A is in contact with the end surface of the arm portion 61A by the spring force of the hoisting stopper spring 58 which is displaced from each edge of the arm 62A and urges clockwise. When the cam 55 rotates exactly once as described above by the film winding and the groove 55A of the cam 55 returns to the initial position, the spring force that biases the cam stopper 62 in the clockwise direction by the horizontal end portion of the charge lever spring 64. As a result, the protrusion 62D of the cam stopper 62 jumps into the groove 55A. By this jumping operation, the lock of the arm portion 57A of the hoisting stopper 57, which was locked at 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, and the spring force of the winding stopper spring 58 causes the ratchet to rotate. It jumps into the tooth groove of the gear 51A and prevents 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 further winding rotation.

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

By pressing the release button 25 of the front cover 20, the release button pin 25A is planted on the back surface of the release button 25.
Operates in the direction of arrow A. That is, the front cover 20
When attached to the camera body 10, the winding knob
51 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, from the end surface of the arm portion 57A of the hoisting stopper 57, the arm portion of the charge lever 61
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.

By rotating the charge lever 61 counterclockwise, the ketobashi 61C of the charge lever 61 is
The sector lever 65 is tapped on the rising portion 65B and then separated from the rising portion 65B. Therefore, the sector lever 65 rotates clockwise around the pin 18B in the long groove of the sector lever against the tensile force of the sector spring 67, and then returns to the original state by the tensile force of the sector spring 67. Therefore, the sector drive pin 65A rotates the sector 66 around the sector pin 18D to expose the film and then closes it.

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

Next, the film counter mechanism will be described.

As described above, 72 meshes with the V groove 56A provided at the upper end of the cam shaft 56 that is planted in the cam 55 that rotates integrally with the sprocket gear 54, and one frame of film is wound up to form a cam shaft. It is an exponential gear that rotates clockwise one tooth each time 56 rotates once.

An index board 71 is printed on the upper surface of the index board gear 72 as an integrally molded product, and the number of remaining photographable films is displayed through the film counter window 26 on the upper surface of the front cover 20.

A projecting portion 72A is provided on the lower surface of the exponential gear 72, and the projecting portion 72A is formed by the next film winding after the photographing of a predetermined number of frames is completed.
It is designed to be inserted between the E and another protruding portion 62E of the cam stopper 62 so as to enter. Then, the projecting portion 72A is replaced by the two projecting portions 61.
By entering between E and 62E, the film is wound up by one frame, and even if the cam 55 makes one rotation and the charging of the sector is completed, both the projecting portions 61E and 62E become the projecting portion 72A of the exponential gear 72. As the movement is blocked, the charge lever 61 cannot operate and the protruding portion 62D of the cam stopper 62 is also in the groove portion of the cam 55.
You will not be able to jump into 55A. The arm portion 57A of the hoisting stopper 57 contacts the end face of the arm portion 62A of the cam stopper 62 by the spring force of the hoisting stopper spring 58, and the V-shaped projection at the tip of the hoisting stopper 57 locks the ratchet gear 51A. Also, it is not possible to operate the charge lever 61 to open and close the sector to expose the film.

In this way, when two frames of film are unwound, the index gear 72 rotates by two teeth,
By this rotation, the protruding portion 72A of the exponential gear 72 presses the protruding portion 61E at all to prevent the movement of the charge lever 61, but comes off from the protruding portion 62E of the cam stopper 62. Therefore, the protrusion 62D is the groove 55A of the cam 55.
Jumping up to the top, the locking of the hoisting stopper 57 is released and the hoisting stopper
Since the winding knob 51 is locked by 57, the film cannot be wound. Further, as described above, the movement of the charge lever 61 is blocked so that the film cannot be exposed. In this way, the leading edge of the film is prevented from being caught in the cartridge.

The camera, which has completed the above-mentioned empty film winding of the two frames, is sent to the developing station, and a part of the back cover 30 is opened in the bright room, and the cartridge P1 containing the exposed film is taken out and a predetermined development is carried out. ..

The camera, which has taken out the cartridge P1 containing the exposed film, is collected by the maker side and is subjected to various processes such as selection based on the identification of the number of reuses, each function, appearance inspection and reloading of the unexposed film. After that, it will be shipped again as a film unit with lens equivalent to a new product.

The display of the identification mark for the number of reuses and the selection of whether or not the film can be reused of the lens-fitted film unit of the present invention were set as follows.

FIG. 5 schematically shows a film unit with a lens, for example, a plurality of identification marks M indicating the number of reuses on a flat main body rib surface 10M formed along the longitudinal direction below the lower rail surface of the camera main body 10. To provide. The identification mark M is stamped into a circle using, for example, white immortal ink, and as shown in the figure, one identification mark M1 is stamped at a predetermined position on the left side of the main body rib surface 10M at the time of the first reuse, and the second Identification mark M for reuse
The identification mark M2 having the same diameter is stamped on the right side of the identification mark 1 and the identification mark M3 having the same diameter is equally spaced on the right side of the identification mark M2 at the time of the third reuse. Stamped.

In this way, the identification mark M is displayed by the identification marks M1, M2, M3 indicating the number of reuses up to the third time. Although not shown, the identification marks M1, M2, and M3 are displayed, for example, without the identification mark or the identification mark M in which the reuse count has already been displayed.
Of the main body rib surface 10 by the automatic stamping device that automatically detects and stamps at the position indicating the next reuse count.
It is designed to be displayed at a predetermined position of M. Therefore, when the identification mark M1 is not displayed for the first time, the identification mark M1 is stamped at the first reuse, and when the identification mark M2 is detected, the third identification mark M3 is stamped to indicate that the reuse is the third time. To be done. It is appropriate that the stamping process of the identification marks M1, M2, M3 is displayed immediately after checking the function and appearance performed for reuse and before loading the unexposed film.
On the other hand, whether or not to reuse the recovery camera before loading unexposed film (hereinafter simply referred to as recovery camera) is performed before the function and appearance inspection process. For example, the recovery camera conveyed by the belt conveyor is An identification mark M is provided by a photo interrupter installed at a predetermined position.
The presence or absence and the number thereof are detected by the intensity of the reflected light. Then, the recovery camera in which the identification mark M2 is detected is continuously inspected for the function and appearance for reuse, and the quality is guaranteed, and then the unexposed film is loaded. On the other hand, the collection camera in which the identification mark M3 is detected is conveyed to the discarding step according to the gate of the belt conveyor switched by the detection information of the photo interrupter. FIG. 6 shows another embodiment of the identification mark. The number of reuses is indicated by the identification mark B using three types of barcodes, and the barcode of the identification mark B1 shown in the figure indicates the first reuse. The barcode of the identification mark B2 is displayed for the second time and the identification mark B3 is displayed.
The barcodes for each indicate the third reuse. As for the identification marks B1, B2, B3, the quality of the cameras is assured by inspecting the function and appearance of the collecting camera, as described above. Identification marks B1, B2
The respective seals on which the B3 barcode is printed are attached at substantially equal intervals.

Then, whether or not to reuse the recovery camera is selected by selecting the P installed at a predetermined position of the belt conveyor.
This is performed by reading either the presence or absence of the identification mark B or the identification marks B1, B2, B3 displayed on the collection camera by the OS device. For example, when the bar code of the identification mark B2 is read, the function for reuse and the external appearance are continuously inspected, while the recovery camera in which the bar code of the identification mark B3 is read automatically switches the gate of the belt conveyor. It is transported to the disposal process. Although illustration is omitted, instead of displaying the immortal ink stamp, holes having the same diameter or depressions or projections provided at three positions corresponding to the third reuse are provided at the same position, for example, a contact sensor is used. If two holes, dents, or protrusions corresponding to the second reuse are detected, they will be reused and if three holes, dents, or protrusions are detected, they will be transported to the disposal process. You can Further, an identification mark whose color is changed for each reuse count may be used to detect the color temperature and to select. The display positions of the identification mark M and the identification mark B are not limited to the main body rib surface 10M, but may be, for example, the cartridge room 15A
May be displayed in place. Further, the identification mark corresponding to the number of reuses can be displayed with one identification mark other than the identification using a plurality of marks for each reuse as described above. That is, although not shown, the diameter of the identification mark is sequentially increased according to the number of reuses, for example, the identification mark of the second time having a large diameter is superimposed on the identification mark of the first time and stamped, and further the third time from the second time. The identification mark may be made large and the number of reuses may be detected based on the size of the identification mark. The shape of the identification mark may not be circular, but may be rectangular, or 1
Indentations or protrusions may be used, and in this case, the size may be changed in accordance with the number of reuses to detect the diameter or width of the changed size.

Further, as shown in FIG. 5, the display position of the reuse number is not limited to the main body rib surface 10M, but may be provided at an appropriate position on the side surface which is closed by the back cover or the like and cannot be seen from the outside.
In this case, for example, if the reflection type photosensor is used to detect the identification mark on the side surface, there is an advantage that the loading of the cartridge P1 is not hindered. Then, as shown in the flow chart of FIG. 7, the camera shipped in (1) is photographed by the user in (2) and then sent to the developing station in (3), and the Patrone P1 on which the exposed film is wound is It is taken out and collected by the manufacturer in (4) for reuse. Then, the back cover 30 of the recovered camera (5) is removed in the process, and automatic selection for reuse is performed in the process (6).

That is, the recovery camera conveyed to the step (6) detects the presence or absence of the reuse mark identification mark M and any of the identification marks M1, M2, M3 by the photo interrupter arranged on the belt conveyor. The recovery camera, up to the identification mark M2, is conveyed to the inspection step (7) for subsequent reuse.

The quality of the collection camera whose quality has been guaranteed in the inspection step (7) is predetermined in the step (8) after the identification mark M of the next reuse number is stamped by the automatic stamping device in the step (8). Unexposed film is loaded and shipped again in the same procedure as a new product. On the other hand, when the identification mark M3 is detected, the recovery camera is automatically conveyed to the discarding step by the method described above. The inspection for quality assurance of the collection camera is performed by the process shown in FIG.

That is, the recovery camera first removes the carton 100 in the process (A), and checks the unit for scratches and irremovable dirt.
Those that can be repaired or cleaned can be reused, and those that cannot be discarded are discarded. (Even if it is called disposal, it goes without saying that the useful parts inside are reused.) Next, in the process of (B), the recovery camera undergoes internal and external cleaning work. By using a static elimination brush during cleaning, the dust and dirt electrostatically attached to the plastic surface can be removed without damaging the plastic surface. Further, in the subsequent steps, it is necessary to prevent static electricity from remaining in the entire unit so that charged dust and dirt in the air do not adhere.

Subsequently, the inspection of the functional surface is started, and the strobe unit 40, the photographing lens 12, the optical system of the objective and the eyepiece lens, and the shutter unit are checked.

When checking the strobe unit 40 in the process (C), a constant voltage power supply is used, and the charging time of the capacitor C and the amount of emitted light which is measured and exceeds a specified value are reusable. Things are exchanged for new ones. It goes without saying that the check of (C) is omitted in the lens-equipped film unit that does not include the strobe unit 40.

In the check of the optical system in the process (D), the focus of the taking lens 12 and the quality of the finder field are judged. Good ones are reusable, and bad ones are replaced with new ones.

In the check of the shutter unit in the process (E), the reciprocating operation state of the sector 66 and the exposure time are measured, and if necessary, adjustment or replacement with a new one is performed. As described above, the recovery camera, which has been inspected in this way and whose quality has been guaranteed, displays the identification mark corresponding to the number of reuses, and is loaded with the unexposed film and shipped.

[0074]

According to the present invention, the camera recovered for reuse by the identification mark indicating the number of reuses is reused because the possibility of reuse is detected and properly sorted before the inspection of the function and appearance. The film unit with lens is guaranteed to have the same quality as a new product and will be provided to the user again.

[Brief description of drawings]

FIG. 1 is an external perspective view showing a film unit with a lens according to the present invention.

FIG. 2 is an exploded perspective view showing the configuration of the unit.

FIG. 3 is a developed perspective view showing a film winding mechanism and the like of the unit.

FIG. 4 is an explanatory diagram of a film loaded in the unit.

FIG. 5 is a perspective view of a unit in which an identification mark indicating the number of reuses is displayed on the unit.

FIG. 6 is a view showing another identification mark of the above.

FIG. 7 is a flowchart showing a process of reusing the unit.

FIG. 8 is a diagram showing inspection items of the unit.

[Explanation of symbols]

 10 Camera body 10M Rib surface 12 Lens for shooting 20 Front cover 21 Objective lens 23 Eyepiece 30 Back cover 40 Strobe unit 66 Sector 100 Carton E Battery F Film P1 Patrone M Identification mark B Identification mark

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

Claims (1)

[Claims] 1. A lens-equipped film unit in which an unexposed film is loaded in a ready-to-shoot state by a user, and the unit is then collected and the unexposed film is loaded again in a ready-to-shoot state. In the manufacturing method of 1., the manufacturing of the lens-equipped film unit characterized in that an identification mark capable of automatic identification is displayed on the unit body of the lens-equipped film unit collected and recovered from the exposed film, corresponding to the number of reuses. Method.