JP3136364B2 - 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 lens-equipped film unit having a function of exposing and winding a film and capable of immediately taking a picture of a previously loaded unexposed film.

[0002]

2. Description of the Related Art A lens-equipped unit is a so-called film-integrated camera having a photographing function, which is also called a "clear camera". The camera body is discarded after the exposed film is taken out, so that it is manufactured at a low cost with a simple structure.

[0003] Cameras are often purchased and used on the go for travel or the like. However, it is hard to say that the camera is convenient to carry. The camera has a photographic lens of f = 35 mm and the outer shape is 110 mm.
It was about 60 mm x 35 mm and was inconvenient because it did not fit in the breast pocket of the shirt.

[0004]

However, despite the fact that it is a "camera clearly", the diversification of photographing purposes in recent years has enhanced the camera functions as in the case of a film unit with a lens having a built-in strobe light emitting device. There is a tendency to increase costs and increase the size of cameras.

[0005] Further, from the viewpoint of reusing resources, it has been demanded to make a camera capable of reusing a "camera clearly", that is, a reuse camera.

Therefore, in order to satisfy these demands, the mechanism as a camera must be as simple and inexpensive as possible and have a high reliability. In the film unit with the lens in which the strobe light emitting device is built, it is absolutely necessary to avoid erroneous light emission or accidental power-on of the strobe light device. This is because if the strobe easily fires wrongly, the user of this unit, which is relatively newbie, will be very surprised by the sudden emission of the powerful strobe light, Also, if the power of the strobe light emitting device is inadvertently turned on inadvertently, the battery will be exhausted when trying to use it, and it will not be possible to fire the strobe light, so if the user strobes broken, Thinking, the user's willingness to buy next time will be greatly diminished.

The present invention solves these problems and improves the system. As a result, the cost of the camera increases due to the simplification of the mechanism of the camera and the use of space. The purpose of the present invention is to provide a film unit with a lens that will not be lost.

[0008]

According to the present invention, there is provided a package for a lens-fitted film unit with a lens, in which a strobe light emitter is disposed near a front corner, and a sheet material folded back. In a package of a lens-fitted film unit packed and sealed in a cylindrical package formed by sealing and opening each of the openings of the cylindrical package, the lens-fitted film unit is The film unit with the lens is housed in the cylindrical package so that the longitudinal direction of the film unit extends in the direction in which the folded portion extends, and the opening at both ends is sealed to form a flat sealing portion. One of the flat seal portions provided is located on the side where the strobe light emitter provided on the film unit with lens is disposed. The length of the seal portion is longer than the length of the other seal portion, a hole for suspension is formed in the one seal portion, and the other seal portion is folded back by the other seal portion. The side having the portion is folded along the side surface of the film unit with the lens inside the package so that the surface side facing the outer surface of the package, and the surface of the other seal portion facing the outer surface of the package. The package is characterized by being fixed to the outer surface of the package by a hot melt adhesive.

[0009] The above Symbol purpose to Sarah, the pre-Ji because the film is loaded
The camera is ready to take pictures immediately,
Stored in the film unit with lens
The charging switch of the light emitting device has a spring property and the contact part is
The front surface of the flash substrate while floating with respect to the flash substrate
A metal piece switch attached to the
Press the contact portion of the switch against the strobe substrate
The first position and the contact portion with respect to the strobe substrate
The strobe substrate is moved between the floating position and the second position.
It consists of a slide knob that can be moved along the front.
The metal piece slide along the moving direction of the slide knob.
On both sides of the switch, the strobe board and the slide knob
Mino that Ru is achieved by the lens-fitted photographic film unit, characterized in that gap space restricting member which holds the provided.

[0010]

FIG. 1 shows the appearance of a film unit with a lens according to the present invention (hereinafter also referred to as the present camera). The present camera is provided with a 35 mm film (J135) loaded in advance. The film is sent to a developing station with the film stored in the camera without rewinding, the film is taken out from the camera, and the film is developed and printed.

An unexposed film used in the camera is loaded by a loading method described later. In the loaded state, the film is wound around a spool from a patrone,
Each time a picture is taken, it is wound up in the patrone by winding up. Therefore, in the photo lab, the photographed film can be taken out of the camera in a bright room.

The removal of the photographed film can be easily performed only by bending a part of the back cover. Therefore, the camera portion is checked, a new unexposed film is loaded, and the back cover is removed by the manufacturer. If replaced, it can be reused.

As the patrone to be loaded into 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 (paper cover) 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 configuration of the camera.

Reference numerals 10, 20, and 30 denote a camera main body, a front cover, and a back cover, respectively, which are main components of the camera. Reference numeral 40 denotes a strobe unit as a built-in strobe light emitting device. These are the 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 with a focal length f = 30 mm and a stop of F9.5 which is a single lens having a focal length f = 30 mm is provided, and a slide 13A which engages with a guide pin 11B is provided. Covered by the lens holder 13.

The camera body 10 and the shutter case 11 described above.
Is molded from 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 composed of AA batteries serving as a strobe charging power source by protruding the upper and lower battery contacts 41, which are integrated, into the battery chamber on the back of the camera body 10 through the upper and lower slit holes 10D. A certain battery power supply E is sandwiched.

The integrated main 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.
, Which are respectively engaged with holes 20A on the front face of the front cover 20 and four locking portions 20B to be 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, and a locking portion 10G on the entire surface of the camera body 10, respectively. Engage and attach.

By engaging the front cover 20 with the camera body 10, the lens holder 13 and the flash unit 40 are fixed to the camera body 10.

Here, the strobe unit which is the above-described strobe light emitting device will be further described.

FIGS. 5A and 5B are enlarged views mainly showing a trigger switch 420 for emitting the flash unit 40 and a charge switch 410 of the flash unit, which is a flash switch. FIG. 5A shows the flash unit 40 from the left side. (B) is a front view of the strobe unit 40, mainly showing a front view of the trigger switch 420 and a charge switch 410 which is a strobe switch, and (c) is (b). The front cover 2 not shown in FIG.
FIG. 2 is a cross-sectional view including the camera body 10.

In FIG. 5B, the trigger switch 420
Are the long contact piece 422 of the trigger switch, the switch operating portion 424 of the resin material provided at the tip thereof, the short contact piece 4 of the trigger switch.
23, and a switch integrally formed with a resin base 421 is attached to the back surface of the strobe substrate 401 as shown in the figure. Then, the strobe unit 40 is attached to the camera body 10 as described above, the switch operating portion 424 is hit in the direction of the arrow by a sector lever that operates a sector described later, and the trigger switch long contact piece 422 is The light is bent toward the short contact piece 423, and is brought into contact with the short contact piece 423 to conduct electricity, so that the strobe emits light. When the long contact piece 422 comes into contact with the short contact piece, the operating load on the switch operating portion 424 is preferably 8 gr or less, and as shown in FIG. 5 (a), the long contact piece 422 is attached to the base 421. By placing a semicircular notch 425 as shown in FIG.

As described above, the trigger switch 420 is hit by the sector lever in the direction of the arrow to turn on the switch and the strobe emits light. The direction of this arrow is parallel to the longitudinal direction of the camera. Therefore, not only the normal posture with the bottom of the camera down, but also the front,
Even if a strong shock is applied to the top and back, the direction of the shock is perpendicular to the direction of the arrow, so the trigger switch 420
Does not conduct. Further, even if an impact is received from the right side of the camera, the trigger switch 420 does not conduct since the direction is opposite to the direction of the arrow. And trigger switch 4
The length of the long contact piece 422, including the switch operation part 424, is extremely small, so even if it receives an impact from the left side of the camera, the impact direction is the same as the arrow but the trigger switch 420 is conductive. And there is almost no false firing of the strobe.

Next, the charging switch of the strobe light emitting device will be described.

In FIG. 5B, the charge switch 410
The slide knob 411 and a metal piece switch
412. Left end of metal switch 412
Is attached to the strobe board 401, and the right
The ends (contact parts) 412A and 412B are strobe-based due to their spring properties
It is mounted in a state of floating above the plate 401. And
Paper generated by sliding slide knob 411
By pressing force perpendicular to the surface, the metal piece switch 412
The right ends 412A and 412B are skewed on the strobe substrate 401.
The print is made to contact the lint patterns 401A and 401B.
The pattern 401A and the pattern 401B are conducted.

In FIG. 5C, a strobe substrate 401 is provided.
Is is attach to the front of the camera body 10 as described above,
Further, the front surface is covered by a front cover 20. The right end portions 412A and 412B of the metal piece switch 412 are mounted on the front cover 20 .
Slide knob 4 with a cam for pressing the block the flash substrate 401
11 is attached, stroke a slide knob 411
The charge switch of the strobe light emitting device is turned on and off by sliding along the front surface of the flash substrate 401 in the direction perpendicular to the paper surface. Then, slide the front cover 20
Butt rib that keeps the space between the strobe board 401 and the 411
201 (interval regulating member) in the moving direction of the slide knob 411
Along the top and bottom of the metal piece switch 412, that is, the slide knob 4
11 are provided above and below as shown in the figure.
The front cover 20 near the only 411 is not easily deformed even if pressed. Thus, tail slide knob 411
When the position of the full, the front cover 20 is never charge switch is turned on even if such be pushed from the front side.

The camera body 10 with the front cover 20 attached
The cartridge P1 and the leading end of the unexposed film F are locked in a cartridge chamber and a scroll chamber (both not shown) formed on the back surface thereof, and a spool S2 is loaded.

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 a predetermined amount by the spool S2 after loading the film, 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 position of the film F on the light-shielding focus surface is regulated.

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
One holes 30C and 30D and one hole (not shown) are engaged with and fixed to the hooks 10K and 10L of the camera body 10 and one hole (not shown) at 10H and 10J.

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.

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

FIG. 3 shows the above-mentioned respective mechanisms at an angle as viewed from the rear side of the camera, and FIG. 4 shows the above-described patrone and the spool in which the film is wrapped, as viewed from the direction in which the spool is inserted into the camera body. It is a thing.

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 J135 is caught in a patrone P1 which is a storage container shown in FIG.
The film F is to be 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, and a spool of the cartridge P1 is 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, in this embodiment, the film F is pulled out until the tip of the film notch FN of the film F matches the index 17A at the lower portion of the lower rail surface, and the tip of the film F is inserted into the slit SL of the spool S2. The perforations P are locked to the claws H. The film notch FN has a number of holes formed in the tongue portion at the leading end of the film to indicate the emulsion lot number and the like of the film.

Next, the back cover 30 is put on and the cover is closed to make it light-tight.
Then, the camera in this state is attached to a film winding device, and the entire film F (with the other end not being detached from the spool S1 of the cartridge P1) is wound around the spool S2 of the spool chamber 15B to complete the loading of the film. Will be. That is, by loading the film F in this manner, the film F is sequentially wound into the patrone P1 for each photographing, and after the photographing of a predetermined number of frames is completed, in this embodiment, two frames are skipped. And film F
The tip of the film is completely patrone P, leaving the required length without being caught in the patrone.
You will be caught in one. Therefore, this patrone can be taken out of the camera in a bright room.

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

The camera body 10 includes a film winding mechanism 50 including a photographing lens 12, a sector 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 the 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,
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.

The counterclockwise rotation of the charge lever 61 by the spring force of the charge lever spring 64 stronger than the sector spring 67 causes the charge lever 61 to rotate.
C hits the rising portion 65B of the sector lever 65 and 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
It returns to its original state due to the tensile force. Therefore, the sector drive pin 65A
Turns the sector 66 around the sector pin 18D, exposes the film, and closes 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, 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, and 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 projection 62 </ b> E of the cam stopper 62. 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.

As described above, in the present embodiment, when two frames of the film are fed, the index plate gear 72 rotates by two teeth, and the rotation causes the protrusion 72 of the index plate gear 72 to rotate.
A is a charge lever that presses the protrusion 61E.
The movement of 61 is prevented, but another protrusion 62 of the cam stopper 62
It comes out of E. Therefore, the protrusion 62D
Jumps into the groove 55A of the cam 55, the locking of the hoisting stopper 57 is released, the hoisting knob 57 is locked by the hoisting stopper 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 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, there is no problem in drawing out the film from the patrone at the time of development even if a patrone having a small outer diameter is used.

[0066]

The film unit with lens according to claim 1
According to the knit, the film unit with lens
When standing upright on a desk etc. with force and receiving impact from the bottom
The trigger switch is accidentally guided by the impact force.
It does not occur that the strobe emits light through it. Obedience
The operating load of the trigger switch contact piece.
Shutter switch that activates the contact piece
The load that the operating part presses against the contact piece can also be reduced,
A fixed shutter can be formed. Claim 2
According to the film unit with lens described above, when not in use
When the slide knob is in the off position, the front cover
Can be pressed from the front side carelessly.
The power switch does not turn on.

[Brief description of the 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 a configuration of a film unit with a lens according to the present invention.

FIG. 3 is a perspective view of mechanisms such as a camera body and a front cover of the lens-fitted film unit according to the present invention as viewed from the rear side.

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

FIGS. 5A and 5B are enlarged views mainly showing the periphery of a switch and a charge switch of a strobe light emitting device of a film unit with a lens according to the present invention, wherein FIG. 5A is a side view of a trigger switch and FIG. FIG. 3C is a sectional view taken along the line YY of FIG.

[Explanation of symbols]

 10 Camera body 20 Front cover 201 Butt rib 40 Strobe unit 401 Strobe board 401A, 401B Print pattern 410 Charge switch (Strobe switch) 411 Slide knob 420 Trigger switch 421 Base 422 Long contact piece 423 Short contact piece 424 Switch operating part 425 Notch Department

Claims (1)

(57) [Claims] In a film unit with a built-in strobe light emitting device, a charge switch of the strobe light emitting device has a spring property and a contact portion is provided on a strobe substrate. A metal switch attached to the front surface of the strobe board in a floating state, a first position for pressing the contact portion of the metal switch against the strobe substrate, and contacting the contact portion with the strobe substrate. And a slide knob movable along the front surface of the strobe board between a second position to be in a floating state, and a metal knob switch on both sides of the metal switch along the moving direction of the slide knob. A film unit with a lens, characterized by being provided with an interval regulating member for maintaining a gap between a strobe substrate and the slide knob. knit.