JPH05197084A - Film unit with lens - Google Patents

Abstract

PURPOSE:To facilitate an operation to load a film by successively winding the photographed film into a cartridge having the diameter smaller than the diameter of a standard cartridge and loading the film in the state of winding the unexposed film into the cartridge. CONSTITUTION:A pin A.PA acts to part a backward rotation preventive pawl 53 blocking the clockwise rotation of a film winding knob 51 by engaging with a ratchet gear 51A provided on the circumferential surface of the film winding knob 51 from the ratchet gear 51A and enables the clockwise rotation of the film winding knob 51. Further, a pin B.PB allows the universal rotation of a cam 55 when this pin is pushed in from a hole provided on a rear cap 30. Besides, this pin has a function to hold a charge lever 61 in a charge state and to count the rotating speed of the cam 55. A coupling CP meshed with the winding pawl in the lower part of a spool S2 of a scroll room 15B is rotated in an arrow direction by driving of a motor, etc., to count the rotating speed of the cam 55 and to wind the film F onto the spool S2.

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, which has an exposure function and a film winding function and can immediately take a photograph of an unexposed film loaded in advance.

[0002]

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

In addition, although the camera is often purchased and used on the go while traveling, it is hard to say that it is convenient to carry, and it has a photographing lens of f = 35 mm and an outer shape of 110 mm × 60 mm.
It was about 35 mm, and I couldn't fit it in the chest pocket of my shirt, which was inconvenient.

[0004]

However, although it is said to be a "camera that is completely shot", the camera function has been enhanced as in the case of a lens-equipped film unit with a built-in stroboscopic light emitting device, due to the recent diversification of shooting purposes. There is a tendency for that reason, and the increase in cost and the increase in camera size are inevitable.

Further, from the idea of reusing resources, it has been demanded that the "shooting-only camera" be a reusable camera, that is, a reuse camera.

As a result of solving these problems and improving the present invention, as a result of the simplification of the mechanism of the camera and the utilization of the space, it is possible to suppress the cost increase and the enlargement of the camera, and to re-use it only by exchanging some members. The present invention is intended to provide a thin film unit with a lens, which enables the use of the film and facilitates the film loading operation.

[0007]

The above-mentioned object is to load a previously unexposed film into a film unit with a lens, and to film the photographed film sequentially in a cartridge having a diameter smaller than that of a standard cartridge. At the same time, the unexposed film is loaded with the unexposed film wound in a cartridge, and is achieved by a lens-equipped film unit configured to be in a state in which it can be photographed by using a dedicated tool after being loaded in the unit. .

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows an external appearance of a film unit with a lens (hereinafter also referred to as the present camera) of the present invention, that is, a film-integrated camera, which camera is provided with a 35 mm film (J135) preloaded. After filming, the film is sent to the maker without removing it from the camera, and the film is developed and printed.

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 move 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 film that has been photographed is wound in the patrone. Therefore, on the maker side, the film that has already been taken can be taken out from the camera as a patrone in a bright room.

Further, the taken film can be taken out easily by bending a part of the back cover. Therefore, if the camera member is checked and a new unexposed film is loaded and the back cover is replaced. It can also be used as a reuse or reuse camera.

As the cartridge loaded in this camera, a cartridge having an outer diameter of φ20.6 mm, which is different from the cartridge (JISK7528) which is generally used, is used.

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

The camera is provided with a cardboard carton on which a product name, simple usage, etc. 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 body, a front cover and a back lid, which are the 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 protruding from both sides with a locking portion 10A on the front surface of the camera body 10, and the sector is linked to 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 and 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 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 mounted on the front surface of the camera body 10 after the eyepiece lens 23 of the finder is engaged and mounted on the rear surface.

The front cover 20 is provided with a hole 20C, a claw 20D, and three engaging portions 20E on the back surface, and the front cover 20 has 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 engaging and 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 and the scroll chamber (both not shown) formed on the back surface of the cartridge, the cartridge P1 and the spool S2 with the leading end of the unexposed film F locked are respectively loaded.

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 is possible to wrap the paper in the cartridge P1 each time the shooting is completed.

A back cover 30 is attached to the back surface of the camera body 10 in which the film F is loaded so that the film F is protected from light and the focus surface position is restricted.

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 shows each of the above-mentioned mechanisms at an angle when viewed from the back side of the camera, and FIG. 4 shows at an angle when viewed from the side of inserting the film-wrapped cartridge and spool into the camera body. It is a thing.

The camera body 10 has a cartridge chamber 15 as two accommodating 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 used 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 in 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, in this embodiment, the film F is pulled out until the tip of the film notcher FN of the film F is aligned with the index 17A on the lower portion of the lower rail surface.
The tip of the film F is inserted into the slit SL of the spool S2 to lock the perforation P of the film F to the claw H. The film notcher FN is such that the emulsion lot number of the film is indicated by several holes provided in the tongue portion at the tip of the film.

Next, the back cover 30 is covered and the cover is made light-tight.
Then, the main camera in this state is attached to a special tool which is a film winding device, and the entire film F (however, the other end does not separate from the spool S1 of the cartridge P1) is wound onto the spool S2 of the scroll chamber 15B and the film is wound. Will be loaded. That is, by loading the film F in this manner, the film F is sequentially wound into the patrone P1 for each shooting, and after the shooting of a predetermined number of images is completed, in the present embodiment, two frames are skipped. , The leading end of the film F is not wound in the cartridge, and the film having been photographed is wound in the cartridge P1 with a necessary length left. Therefore, this cartridge can be taken out from this camera in a bright room.

Here, a special tool which is a film winding device will be described.

The dedicated tool has the following five functions, and these functions will be described with reference to FIGS. 5 (a) and 5 (b).

FIG. 5A is an explanatory view for releasing the locking mechanism of the film winding mechanism 50 of this camera. In FIG. 5 (a), PA is a tapered pin that becomes thinner toward the tip, and the pins A and PA are inserted through the square holes formed by the front cover 20 and the back cover 30 as shown in the figure. ing. The pins A and PA are engaged with a ratchet gear 51A provided on the circumferential surface of the film winding knob 51 to prevent the film winding knob 51 from rotating in the clockwise direction.
Is separated from the ratchet gear 51A as shown in the drawing, and has a function of enabling the film winding knob 51 to rotate clockwise.

Next, PB is a pin which is inserted through a hole provided in the back cover 30 to prevent the projection 62D of the cam stopper 62 from jumping into the groove 55A provided in the cam 55 as shown in the drawing. By inserting as described above, the pins B and PB have a function of allowing the cam 55 to freely rotate. The dedicated tool also has a function of holding the charge lever 61 (not shown) in a charged state and a sensor function of counting the number of rotations of the cam 55.

FIG. 5B is an explanatory view of winding the film around the spool S2 in the scroll chamber 15B.

In FIG. 5B, CP is a scroll chamber
A cam 55 that is a coupling that meshes with the winding claw under the spool S2 of the 15B and that rotates in the direction of the arrow by the power of a motor or the like and is coaxial with the sprocket gear that meshes with the film 55.
It has a function of winding the film F so that the amount of winding the film F on the spool S2 becomes the above-mentioned state by the sensor function of counting the number of rotations.

By attaching the camera to a special tool which is a film winding device having such five functions, the camera can be extremely easily loaded with a film in a bright room. In this camera, the spool S2 is rotated by the power of a motor or the like to wind the film while the locking of the film winding mechanism 50 by the reverse rotation preventing claw 53, the cam stopper 62 and the charge lever 61 is released. Therefore, it is impossible to load the film in the bright room without the special tool for loading the film.

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 denotes 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 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.

By the counterclockwise rotation of the cam 55, the fan-shaped cam portion 55B naturally rotates counterclockwise as described above, and 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 the 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 then the rising portion 65B is overcome and the sector charge mechanism is charged 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 cylindrical surface of the film winding knob 51 is a ratchet gear, and the V-shaped protrusion at the tip of the winding stopper 57 is released by the spring force of the winding stopper spring 58 due to the disengagement of the lock. It will jump into the tooth groove of the ratchet gear 51A and prevent 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 25 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 face of the arm portion 57A of the hoisting stopper 57, the arm portion 61 of the charge lever 61
The edge of A 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.

The charge lever 61, which is stronger than the sector spring 67, rotates counterclockwise by the charge lever spring 64 to rotate the charge lever 61 in the counterclockwise direction.
C hits the rising portion 65B of the sector lever 65 and then comes off 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 the sector spring 67
It returns to its original state due to the pulling force of. Therefore, sector drive pin 65A
Will rotate sector 66 about sector pin 18D to expose the film and then close 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.

The index board 71 is printed on the upper surface of the index board gear 72 as an integrally molded product, and the remaining filmable number of the film is displayed from 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 projected by the film winding 61 after the filming of a predetermined number of frames is finished.
It is designed to be inserted between the E and another protruding portion 62E of the cam stopper 62. 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, in the present embodiment, when the two frames of film are idly fed, the index plate gear 72 rotates by two teeth, and this rotation causes the protrusion 72 of the index plate gear 72 to rotate.
A is a charge lever that holds down the protrusion 61E at all.
The movement of 61 is blocked, but another protrusion 62 of the cam stopper 62 is
It is designed to come off from E. Therefore, the protrusion 62D
Jumps into the groove 55A of the cam 55, the winding stopper 57 is disengaged, and the winding stopper 57 locks the winding knob 51, so that 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 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, even if a cartridge having a small outer diameter is used, there is no problem in pulling out the film from the cartridge at the time of development.

The above-described lens-fitted film unit of the present invention makes it extremely easy for a manufacturer to load a film in a bright room, and the user can freely load the film from the viewpoint of quality assurance. It was designed so that it would not exist.

That is, the film unit with lens after photographing is gathered by the maker, and as described above, the film after photographing is bent on a part of the back cover, that is, the back cover is damaged, and the film having been photographed is caught. The Patrone will be taken out from the camera body. The film will be developed and printed at the photo lab. On the other hand, the camera from which the film was taken out will be checked from the manufacturer's side to check the camera's functions and performance, and to ensure quality assurance. After performing the above, in the same manner as in the case of the new camera in the bright room, the film reel is equipped with the patrone newly wrapped with the unexposed film and the new back cover is attached, as described above. It can be used as a reusable camera by attaching it to a special tool and winding the film on the spool in the scroll room for reuse. In this way, the quality assurance of this camera will be secured by the manufacturer.

Further, in this camera, as described above, the film is wound on the spool of the scroll chamber and loaded by the special tool which is the film winding device.
Even if you use a cartridge with an outer diameter of φ20.6 mm, which is thinner than the standard cartridge, you can easily load the film without complicating the mechanism, and therefore the total thickness of the camera should be 26 mm or less. It is possible.

[0067]

According to the present invention, the cost of the camera can be suppressed and the camera can be made compact by simplifying the mechanism of the camera and utilizing the space, and the camera can be reused only by exchanging a part of the resources. It has become possible to provide a thin lens-equipped film unit that improves environmental protection by reuse and facilitates film loading operation.

[Brief description of drawings]

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

FIG. 2 is a development view showing the configuration of a film unit with a lens based on the present invention.

FIG. 3 is a perspective view of each mechanism such as a camera body and a front cover of the lens-equipped film unit according to the present invention as viewed from the back side.

FIG. 4 is a perspective view of a film used in the film unit with a lens according to the present invention.

FIG. 5 is an explanatory view of film winding on a spool of the lens-equipped film unit according to the present invention.

[Explanation of symbols]

 10 Camera body 20 Front cover 30 Back cover 50 Film winding mechanism 51 Film winding knob 51A Ratchet gear 53 Reverse rotation prevention claw 55 Cam 55A Groove 62 Cam stopper 62D Projection PA pin A PB pin B CP Coupling S2 Spool

Claims (2)

[Claims] 1. An unexposed film is loaded in advance in a film unit with a lens, and a film that has been photographed is sequentially wound into a cartridge having a diameter smaller than that of a standard cartridge, and the unexposed film is not loaded. A film unit with a lens configured such that the exposure film is wound in a cartridge, and after being loaded in the unit, a dedicated tool is used to enable shooting. 2. The lens-equipped film unit has a thickness
The film unit with a lens according to claim 1, wherein the film unit with a lens is thin with a thickness of 26 mm or less.