JPH0583740U - Film unit with lens - Google Patents

Abstract

(57) [Abstract] [Purpose] It is possible to reuse the light-emitting part by replacing it with a new one without discarding the circuit part including the printed circuit board when inspecting and servicing the film unit with lens. [Structure] A light emitting portion 140A including a discharge tube T that constitutes a strobe unit 40, and a circuit portion 140B including a printed circuit board 143.
And the camera body as separate units
After being mounted on the connector 10, the front cover 20 is engaged and held by the front cover 20, and after the mounting, the light emitting part 140A and the circuit part 140B can be joined and separated freely.
It is characterized in that it is configured to be electrically connected via.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a film unit with a lens, which has a built-in strobe unit and can immediately take a stroboscopic photo on an unexposed film loaded in advance.

[0002]

[Prior Art]

 The film unit with lens is a so-called film-integrated camera equipped with the function of taking a picture, which is also called a "shoot-and-shoot camera". It is well known that it can be used to shoot a single loaded film. It is used only and the camera body is discarded after taking out the exposed film, so it is manufactured at a low cost with a simple structure.

However, in recent years, for the purpose of utilizing resources, research has been conducted on a so-called reuse camera that can inspect and maintain a used unit, load an unexposed light film, and provide it again to a user. ..

[0004]

[Problems to be solved by the device]

 In order to make it a reuse camera, it is necessary to unitize and improve the layout so that members can be easily replaced according to their durability and life. Since it is a balance, the need for it is high.

As a result of solving this problem and improving the present invention, an object of the present invention is to provide a lens-fitted film unit that is detachable from the strobe unit so that the electrical components having a short life described above can be easily replaced. It is what

[0006]

[Means for Solving the Problems] The above object is to provide a strobe light emitting unit of the strobe unit in a film unit with a lens, which is equipped with a strobe unit and is capable of taking a strobe photograph by a built-in exposure and film feeding means. This is achieved by a film unit with a lens, which is joined to a strobe circuit section via a connector, and the joint is released to allow replacement.

[0007]

【Example】

 FIG. 1 shows an external view of a film unit with a lens of the present invention (hereinafter also referred to as the present camera), that is, a film-integrated camera. The camera is pre-loaded with 35 mm film (J 135) and sold. The film is sent to the maker side without being rewound, and 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 take-up shaft on the film take-up chamber side is driven to drive the patrone. All the film inside is wound up in the film winding room. The user is able to wind up the film that has already been photographed into the patrone by winding it up each time the photograph is taken. Therefore, on the maker side, the film that has been taken can be taken out from the camera in the bright room as a patrone.

Further, the taken film can be easily taken out by bending a part of the back cover, and therefore, if the back cover is replaced, a new camera that is not exposed to light is reused, that is, a reuse camera. It can also be used as

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

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

The present 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 development 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, which are main components of the camera, respectively, and 40 denotes a built-in strobe unit, and 50, 60 and 70 respectively, a film winding unit. Upper, sector charge and film counter mechanisms.

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 that houses the sector is mounted.

The shutter case 11 is fixed by engaging claws 11 A protruding on both sides with a locking portion 10 A on the front surface of the camera body 10, and links the sector to the sector charge mechanism 60.

Further, on the front surface of the shutter case 11, a photographing lens 12 with a single lens having a focal length f = 30 mm and an aperture of F9.5 is dropped, and a sliding slit 13A engaging with a guide pin 11B is provided. It is covered by the lens presser 13 provided.

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

Fixation and integration of the lens retainer 13 and the strobe unit 40 to 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 cosmetic cover 22 has a guide pin 22A and four claws 22B projecting from the rear surface thereof, and is attached by engaging with holes 20A on the front surface of the front cover 20 and four locking portions 20B, respectively.

The front cover 20 is further mounted on the front surface of the camera body 10 after the eyepiece 23 of the finder is engaged and mounted on the back surface.

The front cover 20 has a hole 20C, a claw 20D, and three locking portions 20E on the back surface, and each of them is attached to a guide pin 10E, a claw 10F, and a side locking 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 equipped with the front cover 20 has a spool in which a cartridge P1 and an end of an unexposed film F are locked in a cartridge chamber 15A and a scroll chamber (film winding chamber) 15B formed on the back surface thereof. S2 is 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 can be rolled up in the Patrone 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 regulated.

The back cover 30 has claws 30A and 30B on its front surface and locking holes 30C and 30D on its side surfaces. When the back cover 30 is attached to the camera body 10, the claws 30A and 30B are engaged with the camera body 10. One holes 30C and 30D are fixed to the stoppers 10H and 10J by engaging with the claws 10K and 10L of the camera body 10.

After mounting the back cover 30, a predetermined film winding operation is performed to set a screen capable of photographing, 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 and FIG. 4 show the above-mentioned respective mechanical parts at an angle when viewed from the rear side of the camera.

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

The film F coated with the light-sensitive material used in the camera of the present embodiment is a roll film J135 or a slightly thin roll film of 110 to 140 μm, which is similar to a general camera, and a cartridge in a dark room in advance. The end of the film is fixed to the spool S1 of the cartridge P1 by a length such that the film is wound 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 into the cartridge chamber 15A so that the spool S1 of the cartridge P1 is engaged with the fork 52 of the hoisting fork 52. Meanwhile, the spool S2 is also inserted into the scroll chamber 15B. Then, 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 side of the lower rail surface, and the tip of the film F is inserted into the slit SL of the spool S2 to nail the perforation P of the film F. H is hooked.

Next, the back lid 30 is covered and the lid is light-tight. Then, the main camera in this state is attached to the 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 on the spool S2 of the scroll chamber 15B to load the film. Will end. That is, by loading the film F in this way, the film F is sequentially wound into the patrone P1 at each shooting, and when the predetermined number of shootings are completed and two films are fed in advance, the film F The leading end of F is not wound in the cartridge, and the film having been photographed is wound in the cartridge P1 while leaving a necessary length. Therefore, this patrone can be taken out from this camera in a bright room.

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

The camera body 10 incorporates the film winding mechanism 50 including the taking lens 12, a sector charge mechanism 60, and a film counter mechanism 70 as main components.

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. The cam 55, which has a fan-shaped cam portion 55B at the lower part, which is coaxial with the sprocket gear 54 having eight teeth and which meshes with the perforation P of the film F, is adapted to rotate exactly once counterclockwise by winding the film. There is.

That is, the film is wound up with one per piece having the 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 to the charge lever shaft. It rotates clockwise against the spring force of the charge lever vane 64 that urges counterclockwise about 63 as the axis of rotation, and the triangular ketobashi 61C provided on the charge lever 61 causes the rising portion of the sector lever 65 to rise. 65B is pressed, and then the rising portion 65B is overcome and the sector charge mechanism is charged as shown in the figure.

A sector beam 67 is stretched between the pin 65C of the sector lever 65 and the pin 18C provided on the camera body 10, and the tension force of the sector spring 67 causes the sector lever 65 to slide and rotate in the elongated hole of the sector lever 65. The left end of the elongated hole is brought into contact with the pin 18B provided on the camera body 10 that freely guides, and the arm plate 65D provided on the sector lever 65 is brought into contact with the pin 18E provided on the camera body 10. There is. Further, a sector drive pin 65A for operating 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 protruding portion 62D of the cam stopper 62 after the end of shooting is removed from the groove portion 55A of the cam 55, and the arm portion 57A of the hoisting stopper 57 changes from the state shown in the figure to the charge lever. The arm portion 61A of 61 and the arm portion 62A of the cam stopper 62 are disengaged from the respective edges and come into contact with the end face of the arm portion 61A by the spring force of the hoisting stopper spring 58 which urges in the time direction. Then, 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 cam stopper 62 is urged clockwise by the horizontal end of the charge lever spring 64. The protruding spring 62D of the cam stopper 62 jumps into the groove 55A due to the spring force. 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 point, is released.

The outer peripheral 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 release of the locking. It will jump into the tooth space 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 rotating.

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 to prevent the film winding knob 51 from rotating in the opposite winding direction. It is like this.

When the release button 25 of the front cover 20 is pressed, the tip of the release button pin 25A implanted on the back surface of the release button 25 operates in the direction of arrow A. That is, when the front cover 20 is attached to the camera main body 10, the hoisting stopper 57 acts on the hoisting stopper spring 58 by the operation of the tip of the release button pin 25A in the direction of arrow A shown on the hoisting knob 51 in the figure. It rotates counterclockwise against the spring force. Then, the edge of the arm portion 61A of the charge lever 61 is disengaged from the end surface of the arm portion 57A of the hoisting stopper 57, and the charge lever 61, and accordingly the cam stopper 62 is rotated counterclockwise by the spring force of the charge lever spring 64. It

By rotating the charge lever 61 in the counterclockwise direction, the above-mentioned ketobashi 61C of the charge lever 61 strikes 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 then returns to its 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 then closes it.

On the other hand, the cam stopper 62 also rotates counterclockwise together with the charge lever 61 as described above, and the protruding portion 62D of the cam stopper 62 comes out of the groove portion 55A of the cam 55. Therefore, even if the release button is not pressed, the arm portion 57A of the hoisting stopper 57 is urged clockwise by the spring force of the hoisting stopper spring 58, but is blocked by the end face of the arm portion 61A of the charge lever 61. The ratchet gear 51A of the hoisting knob 51 is not locked by the V-shaped projection at the tip of the hoisting stopper 57. 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 film of film is wound up to form the cam shaft. It is an exponential gear that rotates clockwise one tooth each time 56 rotates once.

The index board 71 is printed as an integrally molded product on the upper surface of the index wheel gear 72, and the remaining number of film-capable images is displayed through 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 plate gear 72, and the projection 72A is separated from the projection 61E of the charge lever 61 and the cam stopper 62 by the next film winding after the photographing of a predetermined number of frames is completed. It is designed so as to break in between the protruding portions 62E of the. When the protrusion 72A is inserted between the protrusions 61E and 62E, the film is wound up by one frame, and even if the cam 55 makes one rotation and the sector charging is completed, the protrusions 61E and 62E are removed. The protrusion 72A of the exponential gear 72 prevents the charge lever 61 from moving, and the protrusion 62D of the cam stopper 62 cannot jump into the groove 55A of the cam 55. 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 bar 58, and the V-shaped projection at the tip of the hoisting stopper 57 engages the ratchet gear 51A. You can't stop it, nor can you actuate the charge lever 61 to open or close the sector to expose the film.

In this way, when two frames of film are idle-wound, the exponential gear 72 rotates by two teeth, and this rotation causes the protruding portion 72A of the exponential gear 72 to move the protruding portion 61E. The charge lever 61 is prevented from moving by pressing it, but it can be removed from the protruding portion 62E of the cam stopper 62. Therefore, the projecting portion 62D jumps into the groove 55A of the cam 55, the winding stopper 57 is disengaged, and the winding knob 51 is locked by the winding stopper 57, so that the film cannot be wound. Also, as described above, the movement of the charge lever 61 is blocked so that the film cannot be exposed. In this way, the leading edge of the film is prevented from being caught in the cartridge.

The strobe unit 40 includes a strobe light emitting section 140A and a strobe circuit section 140B, which are individually attached to the camera body 10 and then electrically connected to control the strobe light emitting function. It is like this.

The strobe circuit portion 140B is further provided with a pair of upper and lower battery contact pieces 41 which are inserted into the upper and lower slit holes 10D of the camera body 10 so as to project into the battery chamber formed on the rear surface of the camera body 10 to charge the strobe. A capacitor C, which holds an AA battery E as a power source and is further integrated, is stored in a capacitor chamber formed in the lower portion of the shutter case 11.

Next, a detailed configuration of the strobe unit 40 and a procedure for assembling the strobe unit 40 into the camera body 10 will be described with reference to FIG.

The strobe light emitting section 140A is composed of a discharge tube T fixed to the back surface of a panel 141 for scattering light and a reflector 142, and the slidable sections 141A provided on both sides of the panel 141 are provided on the camera body 10. A pair of guide pins 10P protruding from the front face are press-fitted, engaged, mounted and supported.

On the other hand, the strobe circuit section 140 B has a printed circuit board 143 having a control circuit part, the battery contact piece 41 and the capacitor C mounted and supported on the back surface thereof, and the single unit housed in the battery chamber of the camera body 10. It is composed of three batteries E.

The strobe circuit unit 140B is provided with the holes 40A and 40B provided on the printed circuit board 143 for engaging the guide pins 10B and 10C projecting from the camera body 10 after the strobe light emitting unit 140A is attached to the camera body 10. It is fitted and supported together.

After the strobe light emitting section 140A and the strobe circuit section 140B are mounted, the connector CN (1) for connecting to the discharge tube T on the side of the strobe light emitting section 140A and the trigger circuit is attached to the rear surface of the printed circuit board 143 of the strobe circuit section 140B. The light emission control circuit of the strobe unit 40 is formed by joining the installed connector CN (2).

By mounting the strobe circuit section 140B, the notch 143A of the printed circuit board 143 is pressed against the stepped section 141B of the panel 141 to fix the strobe light emitting section 140A to the camera body 10 and further to the front side of the camera described above. By engaging the cover 20, the strobe circuit portion 140B is sandwiched and held between the strobe circuit portion 140B and the camera body 10, and the assembling is completed.

In the strobe unit described above, the strobe light emitter is configured to be attached to the camera body 10, but the present invention is not limited to this, and the connector is connected by attaching the front cover 20 and the front cover 20 to the camera body 10. Of course, it is also possible to configure it.

[0062]

[Effect of the device]

 With the present invention, it is possible to easily replace only the flash unit without attaching or detaching the entire strobe unit, which results in efficient and economical inspection and maintenance for reuse, and for example, a camera for panoramic photography. For this reason, a film unit with a lens with excellent productivity that can share the strobe circuit part and use the strobe light emitting part for normal photography or panoramic photography has been provided.

[Brief description of drawings]

FIG. 1 is an external perspective view of a lens-fitted film unit of the present invention.

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

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

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

FIG. 5 is an explanatory diagram showing a configuration of a strobe unit and an assembling procedure.

[Explanation of symbols]

 10 Camera body 10P, 10B, 10C Guide pin 20 Front cover 40 Strobe unit 40A, 40B hole 41 Battery contact piece 140A Strobe light emitting section 140B Strobe circuit section 141 Panel 142 Reflector 143 Printed circuit board T Discharge tube E AA battery C Capacitor CN connector

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Zenichi Sakai 1st Sakura-cho, Hino City, Tokyo Konica Stock Company In-house

Claims (1)

[Scope of utility model registration request] 1. A film unit with a lens, which comprises a strobe unit and is capable of taking a stroboscopic photograph by means of a built-in exposure and film feeding means, wherein a stroboscopic light emitting portion of the strobe unit is joined to a strobe circuit portion via a connector. Then, the film unit with a lens is characterized in that it is detachable and replaceable.