JPH0446272Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] This invention is a photographic film packaging unit (hereinafter referred to as a "lens-equipped film unit") that is equipped with an exposure function for photographing, and is particularly suitable for use in packaging units equipped with a strobe. Regarding a film unit with a lens.

[Conventional technology]

2. Description of the Related Art Film units with lenses (manufactured by Fuji Photo Film Co., Ltd., trademark ``Utsurun desu Hai'') have become popular as a convenient device for taking photos when one does not carry a camera. This is a unit that is equipped with a photographic lens and a shutter, and a cartridge of film is pre-loaded into it, and can be purchased at a film retailer.After taking a picture, you will have the entire lens-equipped film unit developed and printed.

Conventionally, this film unit with a lens had to be provided at a low price, so the unit body was simply molded from synthetic resin, etc., the photographing lens and shutter were attached, the film was loaded, and the unit body was made of cardboard or other material. It is housed in an outer box made of

In addition, in order to make this convenience even more effective and allow you to take pictures even when there is insufficient brightness, we have developed a film unit with a lens equipped with a strobe (manufactured by Fuji Photo Film, trademark ``Utsurun''). ``Flash'') has been developed.

[Problem that the invention attempts to solve]

In a lens-fitted film unit equipped with such a strobe, it is necessary to perform a strobe light emission test at the time of manufacture to determine whether the strobe emits light normally.

If the strobe device is separate from the main body of the unit, there is no problem since the strobe device is connected to the unit after loading the film and completely shielding the unit from light. In order to provide a film unit with a lens, it has been found that the following problems arise when a strobe is incorporated into the unit.

It is preferable to test the strobe light to determine whether it is working properly prior to loading film into the unit.

However, the strobe's main capacitor was charged by the strobe firing test conducted earlier, but if the film was loaded while it was still charged, the strobe would fire inadvertently. Particularly in the case of manufacturing methods in which the film is loaded in a darkroom using the prewinding method, which is drawn out from the cartridge in advance, and the rear cover is closed to assemble the unit, there is a risk that the film may be exposed if a strobe fires in the darkroom. There is.

Therefore, after the strobe lighting test, it is necessary to discharge the main capacitor before loading the film. In order to reduce manufacturing costs, it is desirable to perform this discharging operation as easily as possible.

SUMMARY OF THE INVENTION An object of this invention is to provide a lens-equipped film unit equipped with a strobe that can discharge the main capacitor as easily as possible after a strobe light emission test.

[Means for solving problems]

In order to achieve the above object, the lens-equipped film unit equipped with a strobe according to this invention has the following features:
It is necessary to load the film into the main body in a dark room, and in a lens-fitted film unit in which a strobe is housed in the unit, an opening is formed in the unit at a position facing the terminal of the main capacitor of the strobe; The present invention is characterized in that by inserting a contact rod of a discharge device into the opening, the terminals of the main capacitor of the strobe are short-circuited through the discharge device.

[Effect]

When the connecting rod is inserted into the opening, the terminals of the main capacitor are short-circuited via the discharge device, so that the main capacitor is discharged.

Inserting the connecting rod into the opening can be performed continuously at the end of the strobe lighting test process.

〔Example〕

Hereinafter, the lens-fitted film unit according to this invention will be specifically explained based on the illustrated embodiment.

FIG. 1 is a perspective view of the unit, which is completed by attaching a front cover 2 and a rear cover 3 to a main body 1 so as to cover them. The main body 1, front cover 2, and rear cover 3 are formed by molding synthetic resin or the like. A photographic lens 4, a viewfinder 5, a strobe light emitting window 6, and a strobe switch button 7 are exposed and arranged on the front surface. Furthermore, a release button 8 and a film counter window 9 are disposed on the top surface, and a holding portion 10 for holding contacts of a strobe battery is exposed. In addition, when removing the battery, cut this holding part 10 with nippers etc.
This is done by opening a certain position.

FIG. 2 is a horizontal sectional view of the strobe, in which a reflector 11 is provided behind the strobe light emitting window 6.
There is a discharge tube 12 approximately in the center of the inner part of the tube. discharge tube 1
A main capacitor 13 and a battery chamber 14 for accommodating a strobe battery are arranged vertically behind the strobe light.

The strobe circuit is wired on a circuit board, and the circuit board 15 is disposed below the reflector 6 and close to the front wall of the front cover 2. Each terminal of the main capacitor 13 is branched from the strobe circuit and connected to the lower part of the circuit board 15.

As shown in FIG. 1, a pair of openings 16a and 16b are bored in the lower part of the front cover 2, and behind the pair of openings 16a and 16b,
Main capacitor 13 led on the circuit board 15
The terminals of each are located.

A contact rod of a discharge device (not shown) for discharging the main capacitor 13 can be inserted into the pair of openings 16a, 16b.

Incidentally, reference numeral 17 in the upper part of FIG. 2 is a through hole for visually confirming the lighting of a neon lamp that indicates the state of charge of the main capacitor 13.

The operation of the lens-fitted film unit according to the invention constructed as above will be explained below.

With the front cover 2 attached and covered with the main body 1,
The product is sent to the strobe inspection process and a strobe light emission test is performed. If the strobe flashes normally, the pair of openings 16 formed in the front cover 2 will open at the end of the process.
Insert the contact rod of the discharge device into a and 16b. When the tip of this contact rod contacts the terminal of the main capacitor 13 guided on the circuit board 15, the terminals of the main capacitor 13 are short-circuited via the discharge device, and the main capacitor 13 is discharged.

After that, the film is loaded into the main body 1, and the rear cover 3 is attached to the main body 1 by ultrasonic bonding in order to ensure that the film is shielded from light and to prevent the film from being reloaded after the film has been taken out. Or they can be connected using a special lock structure.

This embodiment has a pair of openings 16 on the front surface of the front cover.
16a and 16b are shown, but they may be formed on the side surfaces or other surfaces, and the positions where they are formed may be changed depending on the arrangement position of the circuit board 15. Further, although a pair of openings are shown, a single opening may be formed as long as the contact rod of the discharge device can be inserted therein.

Further, although the main capacitor 13 and the battery chamber 14 are shown as being disposed behind the reflector 11, they may be disposed at other positions.

The present invention is not limited to pre-winding using a film containing a cartridge.
It can also be used in a lens-equipped film unit in which only film is loaded.

[Effect of idea]

As explained above, according to the lens-fitted film unit according to this invention, the terminals of the main capacitor of the strobe can be short-circuited by simply inserting the contact rod of the discharge device into the opening formed in the unit. In the construction process of the attached film unit, the main capacitor can be easily discharged after the strobe light emission test. Therefore, it is possible to prevent the flash from inadvertently emitting light and exposing the film after the film is loaded.

In addition, it has a simple structure of forming an opening and a simple operation of inserting a contact rod, and the main capacitor can be discharged continuously during the strobe lighting test process, so there is no increase in manufacturing costs. , it is possible to provide a lens-equipped film unit equipped with a strobe at low cost.

[Brief explanation of the drawing]

The drawings show a preferred embodiment of this invention; FIG. 1 is a perspective view of the unit, and FIG. 2 is a horizontal sectional view of a portion incorporating a strobe. 1...Body, 2...Front cover, 3...Rear cover, 6...Strobe light emitting window, 11...Reflector, 1
2...Discharge tube, 13...Main capacitor, 14...
Battery compartment, 15...Circuit board, 16a, 16b...
Aperture.

Claims (1)

[Scope of Claim for Utility Model Registration] It is necessary to load the film into the main body in a dark room, and in a film unit with a lens in which a strobe is housed in the unit, the terminal of the main capacitor of the strobe of the unit is faced. A film with a lens, characterized in that an opening is formed at a position, and a contact rod of a discharge device is inserted into the opening to short-circuit the terminals of the main capacitor of the strobe via the discharge device. unit.