JP3293028B2 - Film unit with lens - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a so-called "shooting camera" capable of immediately taking a picture of a previously loaded unexposed film, and more particularly to loading and reusing an unexposed film after use. The present invention relates to a lens-equipped film unit.

[0002]

2. Description of the Related Art A simple-to-use camera that can be easily purchased and used at a destination such as a travel destination has been remarkably popular because of its simplicity and low price. It has come to be widely used.

[0003]

However, since the "shooting clear camera" is inexpensive, it is not possible to incorporate a date imprinting device provided in many compact cameras, which is a big handicap. .

[0004] On the other hand, the "shooting clear camera" itself has a structure and assembly in the direction of a so-called reusable camera in which a used unit is newly loaded with an unexposed film for the purpose of utilizing resources recently and provided to the user again. A method is being studied.

The present inventor has paid attention to this point, and has provided a low-cost lens-equipped film unit by incorporating a date imprinting device in a reusable camera and making the imprinting device reusable. It is intended to do so.

[0006]

SUMMARY OF THE INVENTION The object of the present invention is to provide a film unit with a lens which is loaded with an unexposed film in advance by a maker and which is sent to a laboratory for developing a film photographed by a user. member date imprinting device is mounted on so that imprinting the date is performed on the screen of the film in the vicinity of the screen frame of the camera body is mounted,
After the film taken in the lab is taken out,
Wherein the camera body at least the date imprinting device is instrumentation wearing by the manufacturer, it is performed installation of loading and new outer shell member of the unexposed film again, the date imprinting device
The outer shell member attached to the camera body is removed.
It is achieved by the lens-fitted photographic film unit, characterized in Rukoto such as uncontrolled by being.

[0007]

FIG. 1 shows an external view of a film unit with a lens of the present invention (hereinafter also referred to as the present camera), that is, a film-integrated camera, which is loaded with 35 mm film (J135) in advance and sold. After the shooting, the film is sent to the lab without rewinding and stored in the camera, where the film is developed and printed.

[0008] The unexposed film used in the camera is loaded in a state in which it has been inserted into the patrone, and after the camera is brought into a light-tight state, the winding shaft on the side of the film winding chamber is driven.
The entire film in the patrone is wound into a film winding chamber. The user winds up the film that has been shot in the patrone by winding the film each time shooting is performed. Therefore, in the lab, the photographed film can be taken out of the camera in the light room without changing the patrone.

Further, it is possible to remove the photographed film easily by removing the back cover or bending a part of the back cover. Therefore, when the back cover is replaced, a new unexposed film is loaded. It can be reused, that is, used as a reuse camera.

As the patrone loaded in the camera, a patrone having an outer diameter of φ20.6 mm different from a commonly used patrone (JIS K7528) is used.

As a result, the thickness of the camera can be suppressed to about 24 mm except for a lens barrel having a photographing lens, thereby realizing an ultra-thin compact camera.

The camera is provided with a cardboard carton on which a product name and a simple method of use are displayed on a part of its outer surface.

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

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

When the camera body 10 is used alone, the film winding mechanism 50, the sector charging mechanism 60, and the members constituting the film counter mechanism 70 are mounted, and a shutter case 11 for accommodating a sector is mounted.

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 sector to the sector charging mechanism 60.

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

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

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

In the strobe unit 40, the upper and lower battery pieces 41 are inserted into the upper and lower slit holes 10D of the camera body 10 to protrude into the battery chamber on the back of the camera body 10 so that AA batteries E as a strobe charging power source are provided. Sandwich.

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

The lens holder 13 and the strobe unit 40
Is fixedly integrated with the camera body 10 by mounting the front cover 20 on 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 thereof 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 mounted on the front surface of the camera body 10 after engaging and mounting an eyepiece 23 of a finder on the rear surface.

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, a claw 10F on the front surface of the camera body 10, and a locking portion 10G on the side. Engage and attach.

The engagement of the front cover 20 with the camera body 10 fixes the lens holder 13 and the flash unit 40 to the camera body 10.

The camera body 10 with the front cover 20 attached
The cartridge P15 and the spool S2 with the leading end of the unexposed film F are respectively loaded in a cartridge chamber 15A and a scroll chamber (film winding chamber) 15B formed on the back surface.

The other end of the film F is locked on a spool S1 in a cartridge P1, and even if the film in the cartridge is wound up by a spool S2 once the film is loaded, the other end is locked on the spool S1. Therefore, it can be wound into the patrone P1 every time the photographing is completed.

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 surface 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.

After the back cover 30 is mounted, a predetermined film winding operation is performed to set an image-capturable screen, and the screen is completed by mounting the carton shown in FIG.

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

FIGS. 3 and 4 show the above-mentioned respective mechanisms at angles viewed from the rear side of the camera.

The camera body 10 has a patrone chamber 15 as two storage chambers for film winding and film loading in the same plane on both sides of a screen frame 16 as an exposure unit.
A and a scroll chamber 15B are provided, and a J135 film F wound around a patrone P as a storage container shown in FIG. 4 is loaded.

The film F used in the camera of the present embodiment is a roll film J135 or a slightly thin 130-140 μm roll film like a general camera. The end portion is fixed to S1, and a 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. Then, the tip of the film notch FN of the film F is positioned at the index 17 below the lower rail surface.
The film F is pulled out until it conforms to A, the leading end of the film F 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 put on the back cover 30 to make the cover light-tight.
Then, the camera in this state is mounted on the film winding device, and the entire film F (with the other end not being detached from the spool S1 of the cartridge P1) is moved to the scroll chamber 15B.
And the loading of the film is completed. That is, by loading the film F in this manner, the film F is sequentially wound into the patrone P1 for each photographing operation. The photographed film is wrapped in the patrone P1, leaving the required length without the roll wrapped 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 F loaded as described above is wound by turning the film winding knob 51 counterclockwise. A cam 55 coaxial with an eight-tooth sprocket gear 54 meshing with the perforation P of the film F and having a fan-shaped cam portion 55B at the bottom.
Is rotated exactly one turn in the counterclockwise direction by winding the film.

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 the charge lever spring 64 that urges in the counterclockwise direction with the rotation axis as a rotation axis, and the rising portion 65B of the sector lever 65 is rotated by the 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 cylindrical surface of the film winding knob 51 is formed as a ratchet gear. 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.

When the release button 25 of the front cover 20 is pressed, 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.

When the charge lever 61 is rotated counterclockwise, the charge lever 61C of the charge lever 61
The rising portion 65B of the sector lever 65 is hit and comes off 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 returns to the original position due to the tensile force of the sector spring 67. Therefore, the sector drive pin 65A rotates the sector 66 about the sector pin 18D to expose the film and close it.

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, 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. Reference numeral 56 denotes an index gear that rotates clockwise by one tooth for each rotation.

An index plate 71 is printed on the upper surface of the index plate gear 72 as an integrally formed product, and the remaining number of shootable films is displayed from 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 platen gear 72. When the film is wound next after a predetermined number of frames have been photographed, the projection 72A is brought into contact with the projection 61 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 72A is connected to both protruding portions 61.
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.

When two frames of film are wound up in this way, the index wheel 72 rotates by two teeth.
By this rotation, the projection 72A of the index plate gear 72 still holds the projection 61E to prevent the movement of the charge lever 61, but comes off the projection 62E of the cam stopper 62. Therefore, the protrusion 62D is formed in the groove 55A of the cam 55.
And the locking of the hoisting stopper 57 is released and the hoisting stopper
The winding knob 51 is locked by 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 leading end of the film is prevented from being caught in the cartridge.

In the first embodiment shown in FIG. 5, the mounting structure of the date imprinting device 100 incorporated in the present camera is shown with a part of the camera body 10 and the back cover 30 cut away.

The date imprinting apparatus 100 comprises a liquid crystal panel 101 for displaying a date, a control system for switching the date, and a control unit 102 for accommodating the power supply, which are integrated with the liquid crystal panel 101. It is supported on the front side of the camera body 10 in a state of being located just before the film surface at the upper left corner.

Both ends of a lead wire 104 provided on the back cover 30 are connected to two terminals 103 of the control unit 102 via holes in the camera body 10 (not shown).

The date displayed on the liquid crystal panel 101 is
The image is projected onto the film F by a part of the light beam of the photographing lens 12 at the time of exposure, and as shown in FIG.
0 It is displayed as a white character 201 on a black background in the lower right corner. It is of course possible to provide a light source on the front surface of the liquid crystal panel 101 and turn on the light in conjunction with the shutter operation to perform imprinting, so that reliable date imprinting is performed.

[0060] Also, the control unit 102, when removing the rear cover 30 to take out the shooting already films in the manufacturer side, the circuit of automatically control read line 104 Ri by the Rukoto off is cut off date back to the non-control state Te
In, per the provision of again loading a new unexposed film
With repeater down like set means operates the set button 105
You can easily set the required date and start
You. It is desirable that the above-described set button 105 is located at a position where the camera can be operated even when the camera is in a photographable state.

FIG. 6 shows a second embodiment, in which a date imprinting device which can be supported on the back side of the camera body 10 is shown.
In this case, the date displayed on the liquid crystal panel 101A located close to the rear surface of the film is based on the light of a light source such as a miniature lamp which is lit by a built-in rechargeable battery of the control unit 102A. It is projected from the surface side.

Accordingly, the control unit 102A incorporates a control system for switching the date and a power supply thereof, and further includes the light source. The control unit 102A emits light in association with the operation of the trigger switch of the strobe unit 40, and emits a light beam. FIG. 7
As shown in (b), only the date can be displayed as a white character 201A in the lower right corner of the screen 200A. It is to be noted that, also in this embodiment, the structure of the control system is automatically cut off by removing the back cover 30 as in the first embodiment.

Although a film unit with a lens using a patrone having a small outer diameter has been described as an example, it goes without saying that a generally used patrone (JIS K7528) may be used.

[0064]

The pin-shaped setting means shown in FIGS. 5 and 6 can be configured so as to achieve the object by using a plate-shaped or conductive rubber instead of the pin-shaped. As the power source, it is preferable that the power source on the main body side is set in a state where it can be supplied with a set of the back cover so that the imaging device operates in conjunction with turning on of the shutter. The switching may be performed by an electronic circuit such as a transistor or may be performed mechanically.

[0066]

According to the present invention, iterative to suit the date imprinting device incorporating the reuse cycle of camera it is possible to use, Date imprint by increased resulting very low cost A practical lens-equipped film unit having the function described above has been provided. Also, when the outer shell of the camera is removed for reuse,
Since the stored date imprinting device is always in the uncontrolled state, the same date imprinting device for all reused date imprinting devices is used.
The ability to perform date setting work under conditions allows
Youth work efficiency can be dramatically improved .

[Brief description of the drawings]

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

FIG. 2 is a developed perspective view showing a configuration of the unit.

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

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

FIG. 5 is a main part diagram showing an installation status (part 1) of the date imprinting device.

FIG. 6 is a main part diagram showing the status (part 2) of incorporating the date imprinting device.

FIG. 7 is an explanatory diagram of a date recorded on a screen.

[Explanation of symbols]

 10 Camera body 16 Screen frame 30 Back cover F Film 100, 100A Date imprinting device 101, 101A Liquid crystal panel 102, 102A Control unit 103, 103A Terminal 104, 104A Lead wire 105, 105A Set button

──────────────────────────────────────────────────続 き Continuation of front page (56) References JP-A-2-71238 (JP, A) JP-A-63-199350 (JP, A) JP-A-62-178937 (JP, A) JP-A-62-178937 186242 (JP, A) Japanese Utility Model 3-16141 (JP, U) Japanese Utility Model 4-3435 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) G03B 17/24 GAP G03C 3/00 575

Claims (2)

(57) [Claims] An unexposed film is loaded in advance by a manufacturer and shipped to a lab for developing a film photographed by a user. In a film unit with a lens, a camera body on which various members are mounted is provided. screen frame near the full <br/> screen date imprinting device so that imprinting the date is carried out in the Irumu of is mounted, after the photographed film at the laboratory is taken out at the manufacturer at least a camera body in which the date imprinting device is instrumentation wear, is performed installation of loading and new outer shell member of the unexposed film again, the date imprinting device, attached to said camera body
Uncontrolled state due to the detached outer shell member being removed
Lens fitted photographic film unit, characterized in that Rukoto. 2. A date imprinting section of the date imprinting apparatus,
The lens-equipped film unit according to claim 1, wherein the lens-equipped film unit is located on the back side of the film.