JPH07134366A - Film unit with lens (disposal camera) - Google Patents

Abstract

PURPOSE:To provide a film unit with lens and winder capable of continuing photographing by connecting an external power source when a built-in battery can not be used during photographing. CONSTITUTION:An external battery holding part 22 is provided beside a film chamber, connector terminals 23a and 23b are provided on the upper and lower parts of the external battery holding part 22 and respective top end parts 23c and 23d of the connector terminals 23a and 23b are bent at right angles in nonuse. Thus, the connector terminals 23a and 23b are covered with cartons without being projecting from the left side surface of a main body part in nonuse. When the connector terminals 23a and 23b are used, the bent top end parts 23c and 23d are extended and the external battery 20 is set between the connector terminals 23a and 23b.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automatic winding film unit with a lens for winding a film and charging a shutter by a motor.

[0002]

2. Description of the Related Art In order to make it easy to take a picture even if you don't carry a camera, the applicant of the present invention called "Sharp Run.
A film unit with a lens such as "er800" (trade name) is provided. This lens-fitted photo film unit is a unit body in which a simplified photographing mechanism is incorporated and the film is built in advance, and the main structure thereof is already widely known from Japanese Patent Publication No. 2-332615.

On the other hand, most of recent compact cameras are
A winder is built in, and after the shutter release is completed, the motor is driven to automatically wind the film one frame and set the shutter. In such a camera, a battery is used as a power source for driving a motor and a flash, and the battery can be easily replaced when the battery runs out.

Against this background, the applicant of the present invention has recently made a proposal to provide the lens-fitted film unit with the above-described winder function. For example, the specification of Japanese Patent Application No. 5-166878 describes that a lens-equipped film unit is provided with a motor driven by a built-in battery, and the motor is used to wind one frame of film and set a shutter.

[0005]

However, when the winder function as described above is added to the lens-fitted photo film unit, the built-in battery for the winder is defective during use of the film, or the winder built-in battery is installed in the strobe mechanism. When the built-in battery falls into an unusable state due to forgetting to turn off the strobe switch when it is also used as a power source, there is a problem that film winding and shutter charging by the motor cannot be performed, and shooting itself becomes impossible.

For this reason, it is considered that a spare battery is built into the lens-fitted photo film unit in advance, but the structure of the lens-fitted photo film unit is complicated, the external dimensions and weight are increased, and the manufacturing cost is further increased. It causes various problems such as rising, and is not an appropriate method.

The present invention has been made to solve the above problems, and when the built-in battery of the lens-fitted film unit with the winder function becomes unusable during shooting, an external power source is connected for shooting. It is an object of the present invention to provide a film unit with a lens that can continue.

[0008]

In order to achieve the above object, an external battery for supplying electric power for driving a film feeding motor can be connected from the outside of a lens-fitted film unit with a winder function. The connection terminal is wired in parallel with the built-in battery. Further, in the present invention, the connection terminal is formed of an elastic metal plate, and when the connection terminal is not used, the connection terminal is bent so as not to project from the surface of the unit main body of the lens-fitted film unit, and is extended when used. It is a thing. In a third aspect of the present invention, the paper box of the lens-fitted film unit covers the connection terminals, and perforations are provided to expose the connection terminals when the connection terminals are used.

Further, in claim 4, a perforation for exposing the battery holder holding the built-in battery of the lens-fitted film unit with the winder function is provided in the paper box, and the built-in battery can be replaced with another battery. It is the one.

[0010]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is an external perspective view of a lens-fitted photo film unit embodying the present invention inserted into a paper box,
FIG. 2 is a perspective view of the lens-fitted film unit of FIG. 1 taken out from a paper box. FIG. 3 is an exploded perspective view of the lens-fitted film unit shown in FIG. The lens-fitted film unit 2 is roughly divided into a main body 3 provided with a photographing mechanism, a unit main body 6 including a front cover 4 and a rear cover 5 for covering the main body 3 from the front and the back, and a unit main body 6. It consists of a paper box 7.

The main body 3 is provided with a cartridge chamber 9 for accommodating the cartridge 8 and a film chamber 12 for accommodating a roll-shaped film 11 pulled out from the cartridge 8, and the central portion of the main body 3 is provided with A photographing mechanism including a photographing lens 13 and a shutter unit 14 is provided. Further, on the upper part of the main body portion 3, the number-of-photographs display plate 15 is provided.
Also, a flash device 16 and the like are provided.

In the vicinity of the cartridge chamber 9, there are mounted a motor 17 for feeding the photographed film 11 and winding it around the cartridge 8, and a gear box 18 for decelerating and transmitting the rotation of the motor 17. A built-in battery 19 for driving the motor 17 and the strobe device 16 is held in a battery holder 21 below the main body 3.

On the left side surface of the main body portion 3 beside the film chamber 12,
An external battery holder 22 is provided. Connection terminals 23a and 23b formed of elastic metal plates are provided above and below the external battery holding portion 22, and when not used, the tip portions 23c and 23d of the connection terminals 23a and 23b are bent at right angles. ing. As a result, the connection terminals 23a, 2
When not in use, 3b is covered by the paper box 7 without protruding from the left side surface of the main body 3. And this connection terminal 2
When using 3a, 23b, the bent tip portions 23c, 23d are extended to connect the connection terminals 23a,
The external battery 20 is set between 23b.

The front cover 4 is provided with holes for exposing the photographing lens 7, the number-of-photographs display plate 15, the finder 24, the strobe light emitting portion 16a of the strobe device 16, and the like, and a release button 25 on the upper portion. It is formed integrally. A switch 26, which also serves as a switch for the power supply circuit of the strobe device 16 and the motor 17, is formed on the front upper portion of the front cover 4 and is movably mounted in the switch opening 27.

The rear cover 5 is integrally provided with a bottom cover 28 of a cartridge chamber and a bottom cover 29 of a film chamber.
And the bottom of the film chamber 12 are light-tightly covered.

The paper box 7 is provided with openings for exposing the photographing lens 7, the number-of-photographs display plate 15, the finder 24, the stroboscopic light emitting section 16a, the release button 25, and the like. Then, a perforation 31 is provided at a position corresponding to the external battery holding portion 22, and when the external battery holding portion 22 is used, if the range of the perforation 31 of the paper box 7 is cut off, the external battery holding portion 22 is exposed. To do.

FIG. 4 is an explanatory view showing the mechanism around the motor. The motor 17 has a drive gear 32 on the head and a contact portion 33 on the bottom. Further, on the outer surface of the cartridge chamber 9, motor support plates 34a and 34b provided with recessed portions 34c and 34d each having a keyhole shape are integrally formed.
The motor 17 utilizes the elastic deformation of the recesses 34a and 34b in the shape of the key holes to connect the contact portion 33 to the recess 34a and the recess 3
The head is press-fitted into 4b and attached.

The gear box 35 includes a motor support plate 34a.
The gear 37 of the gearbox 35 meshes with the drive gear 32 of the motor 17 to reduce the rotation of the motor 17 to 1/100 or less. Then, the spool 8a of the cartridge 8 is rotated through the fork 38a provided integrally with the final stage gear 38.

The contact portion 33 of the motor 17 is connected to the built-in battery 19 via the switch mechanism 41 and the switch 26. Further, the switch mechanism 41 is a one-frame feed mechanism 42.
Is linked to. The one-frame feeding mechanism 42 mechanically restrains the rotation of the final stage gear 38 when the film 11 is wound around the cartridge 8 and, at the same time, advances the display of the number-of-photographs display plate 15 by one frame. . The switch mechanism 41 is an electrical contact mechanically linked to the one-frame feeding mechanism 42. Further, the connection terminals 23a and 23b are wired in parallel with the built-in battery 19.

The rotation of the motor 17 is performed by the gear box 35,
The shutter charge is transmitted while being transmitted to the shutter unit 14 via the final gear 38 and the film is wound for one frame.

The operation of the above configuration will be described. The photographer first slides the switch 26 of the lens-fitted film unit 2 to turn on the film winding mechanism and the strobe mechanism. When the user presses the release button 25 after checking the shooting range of the subject through the viewfinder 24, the shutter unit 14 performs the shutter operation, and one frame of film is exposed.
At the time when the shutter operation of the shutter unit 14 is completed (after the completion of the one-frame shooting), the one-frame feeding mechanism 42 turns on the switch mechanism 41 and causes the internal battery 19 to rotate the motor 17.

When the motor 17 rotates, the spool 8a engaged with the fork 38a rotates via the gear 37, the gear box 35, and the final stage gear 38 to rotate the film 1
1 is wound up in the cartridge 8. As a result, one frame of unexposed film 11 is fed to the exposure area.
The rotation of the motor 17 is transmitted to the shutter unit 14 at the same time when the film 11 is wound up, and the shutter unit 14 charges the shutter for the next photographing.

The lens-fitted film unit 2 as described above may be left in a low temperature environment for a long time, for example, while unexposed frames remain.
If the strobe device 16 is repeatedly naturally discharged and charged for a long time, the built-in battery 19 is deteriorated and a voltage drop occurs. Then, the motor 17 that winds up the photo film 11 does not operate, and the strobe device 16 cannot be used.

In such a state, perforations 31 provided in the paper box 7 of the lens-fitted film unit 2 are provided.
A part of the paper box 7 is cut along the
Expose 2 Then, the tip portions 23c and 23d of the connection terminals 23a and 23b, which are bent so as not to project from the unit body 6, are extended, and the tip portion 2
The external battery 20 is sandwiched between 3c and 23d.

Since the connecting terminals 23a and 23b are connected in parallel with the built-in battery 19 as already shown in FIG. 4, setting the external battery 20 replaces the deteriorated built-in battery 19. The external battery 20 supplies power. The external battery 20 is the internal battery 1
Similar to item 9, it is an AA battery that is usually easily available.

In this way, the lens-fitted film unit 2 to which electric power is supplied from the external battery 20
Can be used again without any trouble with the motor 17 and the strobe device 16, and shooting can be continued.

FIG. 5 is an explanatory view of an embodiment of a lens-fitted film unit in which the built-in battery can be replaced with another battery. In this embodiment, the built-in battery 42 provided at the bottom of the lens-fitted film unit 41 and the battery holder 43 for holding the built-in battery 42 are normally covered with an outer box 44.

However, while the unexposed frames of the photographic film remain, the built-in battery 4
2 becomes deteriorated and film winding or stroboscopic photography becomes impossible, a part of the outer box 44 is cut along the perforations 45 provided on the bottom surface of the outer box 44, and the built-in battery 4
The battery holder 43 holding 2 is exposed. Then, the deteriorated internal battery 42 is taken out, and a new battery 46
By setting, you can rewind the film and shoot the strobe without any trouble.

[0029]

As described above in detail, according to the present invention, an external battery for supplying electric power for driving the film feeding motor can be connected from the outside of the lens-fitted film unit with the winder function. Since the connection terminal is installed in parallel with the built-in battery, even if the built-in battery deteriorates, you can continue shooting with the winder function and strobe device by connecting the external battery to the connection terminal without any trouble. . In addition, since this connection terminal is formed of an elastic metal plate, when the connection terminal is not used, it is bent so that it does not protrude from the surface of the unit main body, and this connection terminal portion is covered with a paper box. When the connection terminal is not used, the connection terminal does not interfere with photography, and a good design with a clean appearance is maintained.

Further, since the built-in battery of the lens-fitted film unit with the winder function can be replaced with another battery, even if the built-in battery is deteriorated, if the built-in battery is replaced with a new battery, the winder can be used without any trouble. You can continue shooting by using the function or strobe device.

[Brief description of drawings]

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

FIG. 2 is a perspective view of the film unit with lens of FIG. 1 taken out from a paper box.

FIG. 3 is an exploded perspective view of the lens-fitted film unit of FIG.

FIG. 4 is an explanatory view of a winding mechanism of the lens-fitted film unit.

FIG. 5 is an explanatory view of another embodiment of the lens-fitted film unit embodying the present invention.

[Explanation of symbols]

 2 Film unit with lens 7 Paper box 19 Built-in battery 20 External battery 22 External battery holder 23a, 23b Connection terminals 23c, 23d Tip 31 Perforation

Claims (4)

[Claims] 1. A photo film housed in a cartridge, a unit main body having a photographing mechanism such as a photographing lens and a shutter, and a film which is incorporated in the unit main body and rotates a spool of the cartridge via a drive transmission mechanism. A motor for feeding a motor, a built-in battery for driving the motor, and a lens-fitted film unit including a paper box that covers the motor, and an external battery for supplying electric power for driving the motor from the outside of the lens-fitted film unit. A lens-fitted film unit, in which a connection terminal for connecting is connected in parallel with the built-in battery. 2. The connection terminal is formed of an elastic metal plate, is bent so as not to project from the surface of the unit main body when not in use, and is expanded when the external battery is connected to the connection terminal. The film unit with a lens according to claim 1, wherein 3. The paper box is provided with a perforation for covering the connection terminal and exposing the connection terminal when the external battery is connected to the connection terminal. The film unit with a lens according to claim 1. 4. A photo film housed in a cartridge, a unit body having a photographing mechanism such as a photographing lens and a shutter, and a film which is incorporated in the unit body and rotates a spool of the cartridge via a drive transmission mechanism. In the lens-fitted film unit consisting of a motor for feeding the motor, a built-in battery for driving the motor, a battery holder for holding the built-in battery, and a paper box covering them, a part of the paper box is cut into the paper box, A film unit with a lens, wherein a perforation for exposing a battery holder is provided, and the built-in battery can be replaced with another battery.