JP2001228529A - Film unit with lens - Google Patents

Abstract

PROBLEM TO BE SOLVED: To suppress the backlash of a cartridge loaded in a cartridge chamber and to prevent an illegal action to recover a film unit with a lens without permission by a third person and to sell under a different brand by loading new film separately obtained. SOLUTION: A container chamber to which a container housing film is mounted is arranged, and a projected character is formed at least either at the side wall of the container chamber or the inner surface of a cover member to hermetically seal the container chamber, and the container mounted is made to abut on the projected character.

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 in which characters are displayed on the inner surface of a storage chamber for loading a storage container storing a film.

[0002]

2. Description of the Related Art The unit body of a film unit with a lens is provided with a cartridge chamber for loading a cartridge containing 135 film and a cartridge chamber for loading a cartridge containing IX240 film. Since the technology described below is the same in the cartridge chamber and the cartridge chamber, the technique will be described as a cartridge chamber.

When a patrone is loaded into the patrone chamber and the patrone chamber is large and the patrone rattles,
The film winding operation may not be smooth or the film may move after the shutter release, resulting in poor focus.

Therefore, it is desirable to make the patrone chamber large enough to allow the patrone to be inserted without rattling, but it is difficult to accurately mold the unit body to such a size from the beginning when it is molded from resin. is there. If the patrone chamber is molded to be small, the cost and time required for remodeling the mold to increase the size of the patrone chamber become large. Therefore, the patrone chamber is molded so as to be slightly larger than the target dimension, the dimensions of the patrone chamber are measured, the mold is cut based on the measurement result, and the patrone chamber is reduced to reduce the target dimension. It is general that

[0005]

As described above, when the mold in the patrone chamber is cut to reduce the inner wall of the patrone chamber, for example, cutting all the molds forming the inner wall requires a large number of processing steps. Since the rattling can be sufficiently suppressed only by holding the patrone partially, the mold forming the inner wall of the patrone chamber is partially cut off to form a rib on the inner wall of the patrone chamber.

The present invention has been made in view of such a point. Instead of forming a simple rib on the inner wall of the patrone chamber, a predetermined character is formed to suppress rattling of the patrone, and to provide a conventional patrone. It is an object of the present invention to provide a lens-equipped film unit exhibiting a new effect that cannot be obtained.

[0007]

The above object is achieved by the following means.

A storage container chamber for loading a storage container storing a film is provided, and a convex character is formed on at least one of a side wall of the storage container chamber or an inner surface of a lid member for sealing the storage container chamber. A film unit with a lens, wherein a storage container to be loaded is brought into contact with the convex character.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A film unit with a lens according to the present invention will be described with reference to FIG. FIG. 1 is a perspective view of a film unit with a lens before a patrone lid is attached, as viewed from the rear side.

In FIG. 1, a patrone (not shown) is loaded in a patrone chamber 1a of a unit body 1 on which various photographing mechanisms are mounted, and a 135 film accommodated in the patrone is loaded into a roll film chamber located on the opposite side of the patrone chamber 1a. Roll up. Thereafter, the front part of the unit main body 1 is covered with the front cover 2, the rear part is covered with the rear cover 3, and the bottom of the patrone chamber 1a is further covered with the patrone lid 4 and sealed.

Here, the unit main body 1 and the like are molded with resin, but as described in the prior art, the inner wall 1b of the patrone chamber 1a is first formed large, and a concave character is engraved on a mold. The convex character 1c on the inner wall 1b
To form The convex character 1c comes into contact with the inserted patrone and the rattle of the patrone in the patrone chamber 1a is almost eliminated.

Note that the convex character 1c in FIG.
Although "ENT PENDING" (patent pending) is shown, this is an example, and other characters may be used.

[0013] In a film unit with a lens, a film maker manufactures the film unit, loads its own film, and ships the film. When the user finishes shooting, the lens-fitted film unit is submitted to a photo lab for development, but the film is extracted at the photo lab and then collected by a film maker. Then, the film maker disassembles and inspects parts and units, and reuses usable parts and units for newly manufactured film units with lenses.

[0014] In such a distribution cycle, a company other than the film manufacturer may collect the lens-equipped film unit without permission, load the newly obtained film separately and sell it under a different brand. At this time, a label or paper cover on which the company name or brand name of the film maker is printed is affixed to the front cover, etc. It is common to use the recovered exterior parts as they are.

As a result, since the exterior parts are almost the same, general users can easily assume that the exterior parts are manufactured by the film maker. However, in the case of the above-mentioned company, since a sufficient inspection is not performed unlike a film maker, problems such as frequent malfunction and poor performance occur, and the reliability of the film maker is impaired.

In order to cope with such misconduct, "patent pending" is applied to the inner wall 1b of the patrone room 1a.
A warning sentence such as "reuse prohibition" or "refill prohibition" is formed as a convex character.

Further, the convex characters may be used as a company name or a brand name, or a warning text, a company name, and a brand name may be mixed.

By forming a warning message, a company name, a brand name, etc. on the inner wall 1b of the patrone room 1a,
This is a warning when the trader loads a new patrone.

There may be a vicious trader who cuts off convex letters. In this case, the patrone becomes loose in the patrone chamber 1a, and a film winding operation failure occurs, so that the patrone cannot be shipped. Therefore, unauthorized reuse can be prevented.

It is to be noted that a convex character displaying a warning message, a company name, a brand name and the like may be formed on the back side of the patrone cover 4 and on an inner surface (not shown). The vertical position of the patrone is determined by bringing the convex characters into contact with the patrone, and the film can be smoothly wound.

Of course, the convex characters are applied to the inner wall 1 of the patrone room 1a.
b or the inner surface of the patrone cover 4 or only one of them.

Although the embodiment described above is directed to a lens-fitted film unit using 135 film, the same applies to a lens-fitted film unit using IX240 film. In this case, a cartridge is used instead of the patrone, a cartridge chamber is used instead of the patrone chamber, and a cartridge cover is used instead of the patrone cover.

The height of the convex character is 0.05 mm or more,
3.00 mm or less is desirable. Lastly, correspondence between terms used in the claims and terms used in the embodiments will be described. The storage container corresponds to a patrone or a cartridge, and the storage container room corresponds to a patrone or a cartridge chamber. The lid member corresponds to the cartridge lid 4 or the cartridge lid.

[0024]

According to the film unit with a lens according to any one of claims 1 to 3, the rattling of the patrone is suppressed by the convex characters formed in the patrone chamber, and a third party who is not a film maker does not permit the film unit with the lens without permission. In this manner, fraudulent acts such as loading a new film separately collected and selling it under a different brand can be prevented.

[Brief description of the drawings]

FIG. 1 is a perspective view of a film unit with a lens before a patrone lid is attached, as viewed from the back side.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Unit main body 1a Patrone room 1b Inner wall 1c Convex character 4 Patrone cover

Claims (3)

[Claims] 1. A storage container chamber for loading a storage container storing a film, and a convex character is formed on at least one of a side wall of the storage container chamber or an inner surface of a lid member that seals the storage container chamber. A film unit with a lens, wherein a storage container to be loaded is brought into contact with the convex character. 2. The film unit with a lens according to claim 1, wherein the convex character is at least one of a warning text, a company name, and a brand name. 3. The height of the convex character is 0.05 mm or more and 3.00 mm or less.
Or the film unit with a lens according to claim 2.