JP2575227Y2 - 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-integrated camera having a photographing function, and more particularly to a film unit with a lens capable of taking a strobe photograph.

[0002]

BACKGROUND ART Lens-fitted photographic film unit, the method comprising the speak film-integrated camera having a function of photographs captured, is used only for shooting a single film loaded As is well known, exposed After the film is taken out, the mission of the camera body ends, so it is manufactured at a low cost with a simple structure.

[0003]

The present invention is to provide a lens but with Phil
However , recently, diversification of photographing purposes has demanded a device having a somewhat advanced function, and in particular, many models having a built-in strobe light emitting device have come to be seen.

However, since the camera itself is extremely compact in consideration of portability, the storage space for batteries and capacitors serving as a power source of the light emitting device is scarce. Therefore, it is necessary to use a large capacitor to increase the amount of light. And strobing was restricted to a very close range.

On the other hand, since this type of camera has many opportunities to photograph a group of people indoors and outdoors as a landscape photograph or a commemorative photograph on a trip or the like, a model that specializes in photographing a so-called panoramic size photograph has been provided. I have.

[0006] This panorama size dedicated camera has a screen frame size of 13 mm x 36 mm, which is reduced in the vertical direction, and can capture a wider range than usual.
In order to have a wide-angle shooting lens,
It is also necessary to illuminate a wide area in the horizontal direction.
It is necessary.

The present invention provides a strobe for irradiating a wide area.
To provide film units with lenses
It is.

[0008]

The object of the present invention is to provide a discharge tube,
Panel for transmitting light from a discharge tube located in front of the discharge tube
And a reflector for reflecting the light of the discharge tube to the panel side.
A strobe unit having a light emitting unit configured
In the lens-fitted photographic film unit which enables photographing of flash photograph by preloaded exposure means Contact <br/> preliminary film feeding means for internal to unexposed film, and the panel across the discharge tube of the strobe unit The reflection surface of the reflection plate located on the opposite side extends along the longitudinal direction of the discharge tube.
Therefore, the reflection surface is closer to the end of the discharge tube than to the center of the discharge tube.
Is achieved by a film unit with a lens, which is separated from the discharge tube .

[0009]

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.

[0010] The unexposed film used in the camera is loaded in a state in which the film is contained in the patrone, and after the camera is made light-tight, the winding shaft on the film winding chamber is driven to drive the film in the patrone. Wind the entire film into the film take-up chamber. The user winds up the film that has been shot in the patrone by winding up each time a shot is taken. 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, a new unexposed film is 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 commonly 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 photographing lens, thereby realizing an ultra-thin compact camera.

The 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 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 of about 20 mm and an aperture of F9.5 is dropped into a single lens having a focal length of about f = 20 mm, and a slide 13A engaging with a guide pin 11B is provided. It is covered by the lens holder 13 provided.

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 with reference to holes 40A and 40B on the board which are engaged 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 and protrude into the battery chamber on the back of the camera body 10. 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 its rear surface, and 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 engagement of the front cover 20 with the camera body 10 causes the lens holder 13 and the strobe unit 40 to be fixed 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 patrone P1, and even if the film in the patrone is once wound up by a 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 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 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 in a dark room or the like in advance using a 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, the 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 panorama size frame of 13 × 36 mm.

The rotation of the cam 55 in the counterclockwise direction naturally rotates the fan-shaped cam portion 55B in the counterclockwise direction as described above. In the process, the charge lever 61 is moved by the fan-shaped 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 tip of the winding stopper 57 is released by the release of the lock, so that the ratchet is generated 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.

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,
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.

The counterclockwise rotation of the charge lever 61 causes the kettle 61C of the charge lever 61 to
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.

On the upper surface of the index plate gear 72, an index plate 71 is printed 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. When the film is wound next after a predetermined number of frames have been taken, 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 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 shows the configuration of the vertical section of the camera at the optical axis position of the photographing lens 12. The vertical dimension of the screen frame 16 of the present camera is as small as 13 mm as described above. The vertical dimension of the light-shielding tube 10R that covers the light beam from the lens 12 is shown in FIG.
(36 mm) can be significantly reduced compared to the light-shielding cylinder 110R of a camera having the same.

Accordingly, the volume of the condenser chamber of the strobe unit 40 provided below the light shielding tube 10R below the screen frame 16 can be made larger than the volume of the condenser chamber of a camera having a standard size screen. As a result, a capacitor C having an outer diameter d and a larger charge capacity, which is larger than the capacitor C1 having an outer diameter d1 which is stored in a camera having a standard size screen, can be accommodated with a margin.

The stroboscopic unit 40 whose light emission amount is increased by using the capacitor C having a large charge capacity has a light emitting portion 45 configured as shown in FIG. 7 so that a strobe photograph corresponding to a panoramic size screen can be taken. Is achieved.

As shown in FIG. 7A, the light emitting section 45 is a discharge tube T supported on the printed circuit board 42 of the strobe unit 40.
And transmits light of the discharge tube T located in front of the discharge tube T.
Pas and panel 46 is fixed to the panel 46 with light of the discharge tube T that
A reflector 47 that reflects the light to the side of the channel 46, and the amount of light emitted from the discharge tube T is symmetrically inclined outward.
The light is dispersed and reflected in the horizontal direction by
The panel 46 is provided with directivity by two Fresnel surfaces 46A configured to expand the optical axis of the panel 46 and projected in the direction of the arrow.

As a result, as shown in FIG. 8, the distribution of the amount of light emitted from the strobe with respect to the subject is such that the total amount of light effectively spreads in the horizontal direction, and the increased amount of light emitted in conjunction with the increase in the capacitance of the capacitor during photographing of a group of people. Effectively distributed and appropriately exposed photographs will be obtained.

[0063]

[Effect of the invention] against the lens-fitted film unit by devise <br/> simplified camera such as lens-fitted photographic film unit is provided with a strobe which can emit a uniform flash light for a wide range of It was decided to be.

[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 sectional view of a main part of the unit.

FIG. 6 is a cross-sectional view of a camera having a standard size screen.

FIG. 7 is a configuration diagram of a light emitting unit of a strobe built in the unit.

FIG. 8 is a distribution diagram of a strobe light amount of a screen shot by the unit.

[Explanation of symbols]

 10, 110 Camera body 10R, 110R Light shielding tube 12, 112 Photographing lens 16, 116 Screen frame 20 Front cover 30 Back cover 40 Strobe unit 42 Printed circuit board 45 Light emitting unit 46 Panel 46A Fresnel surface 47 Reflector C, C1 Capacitor T Discharge tube

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁶ , DB name) G03B 15/05 G03B 17/04 G03C 3/00 575

Claims (1)

(57) [Scope of request for utility model registration] A discharge tube and a discharge tube located in front of the discharge tube.
A panel for transmitting light from an electric tube, and a panel for transmitting light from a discharge tube.
A strobe unit having a light-emitting portion constituted by a side-reflecting plate is provided. A strobe photograph can be taken by a built-in exposure unit and a film feeding unit for a pre-loaded unexposed film. in the lens-fitted photographic film unit, the reflecting surface of the reflecting plate located on the opposite side of the panel across the discharge tube of the strobe unit,
Along the longitudinal direction of the discharge tube, the central portion of the discharge surface
The film unit with a lens, wherein the end of the discharge tube is farther from the discharge tube than the end of the discharge tube .