JP2577602Y2 - 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 film unit with a lens having an exposure and film winding function and capable of taking a picture immediately on a previously loaded unexposed film.

[0002]

2. Description of the Related Art A film unit with a lens is a so-called film-integrated camera having a photographing function, which is also referred to as a "clear camera". Since the camera body is used only for photographing the film and the exposed body of the camera is discarded after taking out the film, the camera body is manufactured with a simple structure at a low cost.

[0003] Cameras are often purchased and used on the go when traveling or the like. However, it is hard to say that the camera is convenient to carry, and the camera has a photographic lens of f = 35 mm and the outer shape is 110 mm x 60 m.
Approximately 35 mm in size, it was inconvenient without getting into the shirt chest.

[0004]

[Problems to be Solved by the Invention] However, despite the fact that it is a "camera-clear camera", camera functions have become more sophisticated as in the case of a lens-equipped film unit with a built-in strobe light emitting device due to diversification of shooting purposes recently. There is a tendency to increase costs and increase the size of cameras.

An object of the present invention is to provide a small-sized lens-fitted film unit by simplifying the mechanism of the camera and utilizing the space as a result of solving and improving the above points.

In particular, it is an object of the present invention to realize a thin film unit with a lens in which the thickness of a camera does not increase even if a strobe unit is incorporated, and the strength of the camera is guaranteed.

[0007]

SUMMARY OF THE INVENTION The object of the present invention is to provide a film unit with a lens provided with a strobe unit and capable of taking a strobe photograph on an unexposed film loaded in advance by built-in exposure and film feeding means. The substrate having the soldered portion of the substrate
And the inner surface of the exterior member of the film unit faces
This is achieved by a lens-fitted film unit which is disposed so as to be close to the film unit, and has a reinforcing rib provided on an inner surface of an exterior member of the film unit so as to avoid a soldered portion of the substrate.

[0008]

FIG. 1 shows the appearance 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. The camera is pre-loaded with 35 mm film (J135) and sold. After the shooting, the film is sent to the maker without being rewound, and is developed and printed.

[0009] The unexposed film used in the camera is loaded in a state in which it is contained in the patrone, and after the camera is made light-tight, the winding shaft on the film winding chamber side is driven to drive the film in the patrone. The entire film 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, on the maker side, the photographed film can be taken out of the camera as a patrone in the light room.

The photographed film can be easily taken out by bending a part of the back cover. Therefore, if the back cover is replaced, an unexposed film is newly loaded and reused, that is, used as a reuse camera. You can do it.

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

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

This 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 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 the sector is linked to the sector charging mechanism 60.

Further, on the front surface of the shutter case 11, a taking lens 12 having a single lens having a focal length f = 30 mm and an aperture of F9.5 is dropped, and has a slide 13A engaged with a guide pin 11B. Covered by the lens holder 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 board which engage with guide pins 10B and 10C on the front of the camera body 10, respectively.

The strobe unit 40 is formed by integrating upper and lower battery contact pieces 41 into upper and lower slit holes 10D of the camera body 10 and protruding into a battery chamber on the back of the camera body 10 to provide an AA battery as a strobe charging power source. Hold E.

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 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 to 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 thereof. The front cover 20 has a guide pin 10E, a claw 10F, and a locking portion 10G on the front surface of the camera body 10, respectively. Engage and attach.

The lens cover 13 and the flash unit 40 are fixed to the camera body 10 by engaging the front cover 20 with 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 the cartridge P1, and even if the film in the cartridge is once wound up by the spool S2 after 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 a photographable screen, and the carton shown in FIG. 1 is mounted to complete the operation.

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 two cartridge 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.

A film F used in the camera of this embodiment is a roll film J135 or a slightly thin roll film of 130 to 140 μm, like a general camera, and a spool of the cartridge P1 previously stored in a dark room or the like using the cartridge as a storage container. 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, a back cover 30 is put on the cover 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. 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 peripheral cylindrical surface of the film winding knob 51 is a ratchet gear, and the V-shaped projection at the end of the winding stopper 57 is released by the release of the lock, so that the ratchet gear is driven 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,
The lifting stopper 57 rotates counterclockwise against the spring force of the lifting stopper spring 58 by the operation of the tip of the release button pin 25A in the direction of arrow A described above. 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 rotate counterclockwise by the spring force of the charge lever spring 64.

Then, the counterclockwise rotation of the charge lever 61 causes the ketobashi 61C of the charge lever 61 to rotate.
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 in the counterclockwise direction 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, so that the film is wound up by one frame and the cam shaft is rotated. 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 molded 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, and when the film is wound up after the 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 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.

When two frames of the 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.

FIG. 5 is a plan view of a substrate 42 of the strobe unit 40. The substrate 42 forms a printed circuit 42A having a pattern as indicated by diagonal lines on the front, and charges the printed circuit 42A. Switch SW1 and board 42
Each electrical component such as the discharge tube of the light emitting device 43 disposed on the back of the device is connected and fixed by soldering.

Each of the above-mentioned electrical components has a terminal connected to a substrate.
Soldering is performed in a state where it is inserted into the printed circuit 42 and its tip projects above the printed circuit 42A, and a number of raised soldered portions 42B are formed on the front surface of the substrate 42. In particular, the two terminals of the charging switch SW1 are made to contact two obliquely formed metal patterns 421 and 422 of the printed circuit. 422 is slanted, and there is an advantage that compact and reliable contact can be obtained.

FIG. 6 shows the inner wall surface of the front cover 20 which is an exterior member facing the substrate 42. Except for the light emitting device 43 and the opening portions 24A and 24B through which the charging switch SW1 can be seen, each of the above solders is used. Ribs R1, R2, and R3 having different heights of the patterns as indicated by oblique lines are formed integrally with the front cover 20 at a portion that does not interfere with the attachment 42B.

FIG. 7 shows the relationship between the front cover 20 and the substrate 42 by an AA section.
1, R2 and R3 are determined so as to correspond to the height of the solder portion 42B which face each to particularly high soldering portion 42B
A hole portion such as a circular or oval through holes 24C are Te
It is adapted to avoid the interference will.

As a result, even if the front cover 20 is formed to be thin by a synthetic resin material, the key points are reinforced by the respective ribs to provide rigidity, so that the front cover 20 has high durability and can be formed to be thin by that much. Accordingly, even when the substrate 42 is accommodated, an increase in the thickness of the camera can be minimized. In addition, since each of the through holes 24C is shielded by mounting the carton 100, there is no problem in practical use.

[0062]

[Effects of the Invention] According to the present invention, it is possible to reduce the thickness of the exterior member constituting the appearance of the film unit without impairing the rigidity, and as a result, even when the strobe unit is built in, the thickness is particularly large. A lens-equipped film unit that can be made compact without increasing the size in the direction is provided.

[Brief description of the drawings]

FIG. 1 is an external perspective view of a lens-fitted film unit of 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 front view of a strobe substrate incorporated in the unit.

FIG. 6 is a plan view of an essential part showing an inner wall of a front cover of the unit.

FIG. 7 is a sectional view of a main part showing a relationship between the substrate and a front cover.

[Explanation of symbols]

 10 Camera body 20 Front cover 24A, 24B Opening 24C Through hole 30 Back cover 40 Strobe unit 41 (for battery) contact piece 42 Board 42A Printed circuit 42B Solder part 43 Light emitter SW1 Charge switch R1, R2, R3 Rib

Continuation of the front page (58) Field surveyed (Int. Cl. ⁶ , DB name) G03C 3/00 G03B 17/00 G03B 17/02 G03B 17/04 G03B 15/05

Claims (3)

(57) [Scope of request for utility model registration] [Claim 1 further comprising a flash unit, the lens-fitted film unit which enables the flash photography unexposed film preloaded by exposure and film feeding means incorporated, the substrate of the electronic flash unit, the
The surface of the board having the soldered portion and the outside of the film unit
A film with a lens, wherein the film is provided so that the inner surface of the mounting member is opposed to and close to the mounting member, and a reinforcing rib is provided on the inner surface of the outer member of the film unit so as to avoid a soldered portion of the substrate. unit. 2. A substrate of the strobe unit is a film.
Outside of the film unit and the film unit
2. The device according to claim 1, wherein the first member is disposed between the mounting members.
2. The film unit with a lens according to 1. 3. The inner surface of an exterior member of the film unit.
Avoid interference caused by the projecting portion of the soldered portion of the board.
The hole according to claim 1, wherein the hole is provided.
Film unit with a screwdriver.