JPH1165031A - Film unit with lens - Google Patents

Abstract

(57) [Summary] [Problem] To prevent resale due to irregular film refilling. SOLUTION: A release button 14 is separated by a slit 17 except for a part of the outer periphery thereof, and is integrally provided on a front cover 5 so as to be elastic. The release button 14 connects the pressing portion 20 pressed by a finger during photographing, the front cover 5 and the pressing portion 20 integrally, and
And a thin connecting portion 21 which is elastically deformed when is pressed. At the center of the surface of the pressing portion 20, a convex mark display 22 representing the name of a manufacturer or a selling company is integrally formed. On the surface of the connecting portion 21, a convex character display 23 indicating a manufacturer name is integrally formed at a portion exposed from the label 4. If the convex mark display 22 and the convex character display 23 are cut or filled in order to reuse the unit body 3, the function of the release button 14 is impaired. Therefore, there is no danger that the unit body 3 may be used as it is and a new film cartridge is loaded and sold.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lens-fitted film unit which prevents the unit body from being reused irregularly.

[0002]

2. Description of the Related Art A film unit with a lens has a built-in simple photographing mechanism and is composed of a unit main body in which a cartridge film is loaded in advance and a paper box which covers the unit, and is inexpensive and easy to use. Widespread.

[0003] The unit main body includes a main body base in which a cartridge chamber for housing a cartridge and a film chamber for housing a film roll are integrally formed, and an exposure unit provided on the front surface of the main body base and having a photographic lens and a shutter mechanism. It consists of a unit, a rear cover for closing the cartridge chamber and the film chamber accommodating the cartridge and the film roll from the back of the main body base in a light-tight manner, and a front cover integrally formed with a release button to cover the exposure unit. Have been. The unexposed film is pulled out of the film chamber by the winding operation, the shutter is charged in conjunction with the winding operation, and the photographing is performed by pressing the release button. The exposed film is wound up and stored in a cartridge by a winding operation.

After using a film unit with a lens,
Submitted to the lab as is. At the photo lab, the exposed film is taken out of the unit body for development and print processing, but the used unit body itself is not returned to the user, but is collected by the manufacturer and the unit body is disassembled for each part Is done. Since most of the components are resin molded products, if the components are so severely damaged that they cannot be reused, they are crushed and melted and used again as raw materials as resin pellets. Further, the exposure unit can be reused as it is if no abnormality is found by performing a function test.

[0005] Of these parts, the main body base and the rear cover are parts that come into direct contact with the film.
It is desirable to avoid reuse as it is. If any of these parts is slightly damaged, there is a risk that the emulsion surface or the base surface of the film will have a scratch or a scratch, which will not be able to restore the quality of the photographic image. For this reason, the rear cover is only reused as a raw material after crushing and melting.

[0006]

However, recently, a third party, mainly a developer, other than the maker of the film unit with the lens, has received a request for development,
There is a situation in which a large number of film units that have been taken out of a film unit with a lens for which printing has been requested and that have been taken out and loaded with new film cartridges have been sold on the market.

[0007] Reuse of the unit body without function guarantee without proper quality inspection of each part of the unit body to be reused may cause deterioration of photographic quality such as damage to newly loaded film. Also, there is a possibility that proper photographing cannot be performed due to an operation failure due to deterioration of the photographing mechanism. In this way, by reloading and selling the film cartridge without performing necessary quality inspections, etc.,
Adverse effects such as a decrease in the reliability of the lens-fitted film unit have occurred for general users.

The present invention has been made in view of the above circumstances, and has as its object to provide a film unit with a lens capable of preventing resale due to irregular film refilling.

[0009]

According to the present invention, in order to achieve the above object, according to the first aspect of the present invention, the surface of a main member which is exposed to the outside of the unit main body and essential for photographing operation is provided on the surface of the manufacturer or the like. Marks or letters representing the name of the selling company were integrally molded. According to the second aspect of the present invention, the mark or the character is provided with a thickness equal to or more than half of that of the main member. According to the third aspect of the present invention, the main member is a release button which is separated by a slit while leaving a part of its outer periphery and is elastically and integrally provided on the cover member of the film unit with the lens.

[0010]

Embodiments of the present invention will be described below with reference to the drawings. In FIG. 4, the lens-fitted film unit 2 is composed of a unit main body 3 and a label 4 which is wound around the central part of the unit main body to cover it. The unit main body 3 incorporates a shutter mechanism, a film wrapping mechanism, and the like, and is configured such that a front cover 5 and a rear cover 6 are nailed before and after a main body base in which a film cartridge is stored. A photographing lens 10, a strobe light emission window 11, a finder objective window 12, and the like are provided on a front surface of the unit body 3, and a photographing number counter window 13 and a release button 1 are provided on an upper surface.
4, a strobe charging start button and the like are provided.

In FIG. 1, the release button 14 is separated by a slit 17 while leaving a part of the outer periphery thereof, and is provided integrally with the front cover 5 so as to be elastic. The release button 14 includes a pressing portion 20 that is pressed by a finger during photographing, and a thin connecting portion 21 that integrally connects the front cover 5 and the pressing portion 20 and that elastically deforms when the release button 14 is pressed. Have been. At the center of the surface of the pressing portion 20, a convex mark display 22 protruding from the surface and representing the name of a manufacturer or a selling company is integrally formed. On the surface of the connecting portion 21, a convex character display 23 representing a manufacturer name is integrally formed at a portion exposed from the label 4.

In FIG. 2 showing an AA cross section, a convex mark display 22 is formed by pressing the pressing portion 2 so that the periphery thereof is one paragraph.
0 is integrally molded. The protruding character display 23 is integrally formed on the surface of the connecting portion 21 so that the periphery thereof forms a paragraph. Convex mark display 22 and convex character display 23
As shown in the figure, it is preferable that the pressure is provided with a pressure equal to or more than one half of that of each of the pressing portion 20 and the connecting portion 21. Although the pressing portion 20 and the connecting portion 21 are partially formed to be thin, they have sufficient strength in actual use.

The photographing with the lens-fitted film unit 2 is performed by rotating the winding knob 25 to wind up the film, capturing a desired subject in the finder, and pressing the release button 14. The photographing is repeated in this manner, and the photographing is completed when all the films are stored in the cartridge. The photographed film unit 2 with the lens is submitted to the developing laboratory as it is. At the developing station, the label 4 is broken, the bottom cover 26 is opened, and the cartridge containing the film is taken out.

In the unit body 3, the convex mark display 22 and the convex character display 2 are provided on the surface of the release button 14 which is easily visible and cannot be completely covered with the label 4.
Since 3 is integrally molded, if it is reused as it is, it can be seen at a glance that it is a defective product having a different manufacturer or sales company name. Therefore, it is conceivable that the convex mark display 22 and the convex character display 23 are deleted, the unit body 3 including the front cover 5 is diverted as it is, and a new film cartridge is loaded, loaded and sold.

However, if the convex mark display 22 is scraped off, the pressing portion 20 becomes thinner and enters the inside, so that it is difficult to locate the release button 14 by the touch of a finger, and the pressing portion 20 is pressed with a finger. It is difficult to push it all the way down. In addition, since the center of the pressing portion 20 is not known, there is a case where the pressing portion 20 is missed or a camera shake occurs. Further, when the convex character display 23 is scraped off, the strength of the connecting portion 21 is insufficient, so that when the release button 14 is pressed, the connection portion 21 may be damaged or twisted.

When the convex mark display 22 is buried, the thickness of the pressing portion 20 is increased, so that the release button 14 is inadvertently pressed while the film is being rolled while being carried, which may cause one frame loss of the film. . When the convex character display 23 is filled, the strength of the connecting portion 21 becomes too strong, and the release button 14 cannot be easily pressed, or the connecting portion 21
May be distorted, causing a pressing failure.

As described above, when the release button 14 is processed to reuse the unit body 3, the function of the release button 14 is impaired. Therefore, there is no danger that the unit body 3 may be used as it is and a new film cartridge is loaded and sold.

FIG. 3 shows another release button 29.
In the surface of each of the pressing portion 30 and the connecting portion 31,
Concave mark display 3 indicating the name of the manufacturer or sales company as if cut off
The same effect as described above can be obtained even when the 3 and the concave character display 33 are integrally formed.

In the above embodiment, the mark display and the character display are provided on the release button. However, the flash charging start button 15 essential for flash photography, a part of the rear cover 6 essential for film shading, and the film winding essential are required. It may be provided on the hoisting knob 25 or the like.

[0020]

As described above, according to the film unit with the lens of the present invention, the mark or the mark indicating the name of the manufacturer or the selling company is provided on the surface of the main member which is exposed to the outside of the unit body and essential for the photographing operation. Since the characters were molded integrally,
It is possible to prevent resale due to irregular film refilling of the unit body.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram of a release button.

FIG. 2 is a side sectional view of a release button.

FIG. 3 is a side sectional view of another release button.

FIG. 4 is an external perspective view of a film unit with a lens.

[Explanation of symbols]

 3 Unit body 14 Release button 20 Pressing part 21 Connecting part 22 Convex mark display 23 Convex character display

Claims (3)

[Claims] 1. A film unit with a lens in which a film is pre-loaded on a unit main body in which a photographing mechanism is incorporated, wherein a manufacturer and a sales company are provided on a surface of a main member which is exposed to the outside of the unit main body and essential for photographing operation. A film unit with a lens, wherein a mark or character representing a name is integrally formed. 2. The film unit with a lens according to claim 1, wherein the mark or the character is provided with a wall pressure of not less than half of that of the main member. 3. The release button according to claim 1, wherein the main member is a release button which is separated by a slit while leaving a part of its outer periphery and is elastically and integrally provided on a cover member of the film unit with a lens. 3. The film unit with a lens according to 1 or 2.