JPH1048783A - Photographic film cartridge - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a photographic film cartridge constituted so that the number of the unexposed photographic frames of the film cartridge taken out from a camera halfway without exposing all the photographic frames may be easily grasped. SOLUTION: A label 9 stuck to a main body case 7 is provided with a scale part 11 for recording the number of the unexposed photographic frames by a user. Then, recessed and projected parts are formed at a part where the scale part 11 is just positioned on the case 7 when the label 9 is stuck to the case 7. By pushing and scratching the optional position of the scale part 11 with the tip of a fingernail or the outer peripheral edge of a coin in such constitution, a part of the scale part 11 is broken and gets into the recessed part of the recessed and projected parts, so that a mark 13 is formed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a photographic film cartridge, and more particularly to a photographic film cartridge capable of easily ascertaining the number of unexposed film frames.

[0002]

2. Description of the Related Art At present, various types of photographic films are used. For general photographing, a spool is rotatably provided inside a patrone body, and an end portion of a belt-like photographic film is fixed to the spool. Photo film patrone wound around is widely used.

On the other hand, recently, US Pat.
As described in JP-A-3-37645 and JP-A-2-124564 by the present applicant, the patrone main body is assembled from a resin molded product, and the inside and outside of the patrone main body are separated. 2. Description of the Related Art There is known a photographic film cartridge in which a cover member is rotatably provided in a film passage to be connected, the cover member is rotated to an open position for opening the film passage, and then the photographic film is sent out of the cartridge body by rotation of a spool.

The photographic film patrone of this type rewinds the photographic film once in the middle without taking all the frames, takes out the photographic film patrone from the camera, and re-attaches the photographic film patrone at a later date. , And a photographic film can be sent out to an unexposed photographing frame to perform photographing.

As described above, in the case where the photographic film is unwound and the photographic film cartridge is taken out from the camera without taking all the frames, the taken or unexposed photographed film is taken out after taking out the photographic film cartridge. Since there is no information on the number of frames, there is a problem that as the date and time elapse, it becomes difficult to know how much the taken photo film cartridge can be used.

[0006]

For this reason, the number of unexposed shot frames may be recorded on a memo sheet or the like, as disclosed in Japanese Patent Publication No. 7-72782, for example. Even so, the memo paper is often lost, and the number of unexposed shot frames of the photo film cartridge taken out of the camera on the way may be lost.

Further, when there are a plurality of photo film cartridges, it is easy to mistake the correspondence between each memo sheet on which the number of unexposed shot frames is recorded and the photo film cartridge. Further, since the camera is often used when going out, the user does not always bring a writing instrument and memo paper when taking out the photo film patrone, and often forgets the number of unexposed frames.

The present invention has been made in view of the above circumstances, and makes it possible to easily grasp the number of unexposed photographed frames of a photo film patrone taken out of the camera without taking all the frames. The purpose is to provide a photographic film patrone.

[0009]

In order to achieve the above object, in the photographic film cartridge of the present invention, a label indicating a scale indicating the number of unexposed or exposed film frames is provided on a main body case of the photographic film cartridge. Is provided, and a standard of the number of used frames of the film is recorded on the scale.

According to a second aspect of the present invention, on the surface of the main body case of the photographic film cartridge, a plurality of uneven portions are provided in parallel in a linear manner, and the number of unexposed film frames is indicated on the upper surface of the uneven portion. Attach a label indicating the scale and, at a position corresponding to the number of unexposed film frames on the scale, dent a part of the label toward the concave and convex portion side to obtain an estimate of the number of unexposed film frames. It is intended to be recorded.

According to a third aspect of the present invention, a pressure-sensitive material is attached to the surface of the main body case of the photographic film cartridge, and a label printed with a scale indicating the number of unexposed film frames is attached near the pressure-sensitive material. The pressure-sensitive material is pressed at a position corresponding to the number of unexposed film frames on the scale to develop the color of the pressure-sensitive material, thereby recording an estimate of the number of unexposed film frames. . According to a fourth aspect of the present invention, a memo area is provided on the surface of the main body case of the photographic film patrone, in which a standard number of unexposed film frames can be recorded without using a tool such as a writing tool.

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The construction of a photographic film cartridge of the present invention will be described. FIG. 1 is a perspective view showing the appearance of a photographic film cartridge embodying the present invention, and FIG. 2 is a perspective view showing a state in which a label is partially removed. The photo film patrone 2 is composed of a main case 7 composed of an upper case 3, a lower case 4, a spool 5, and a lid member 6 formed of light-shielding plastic, and a photo film 8 stored in a roll shape in the main case 7. , And a label 9 attached to the main body case 7.

In the photographic film cartridge 2, the photographic film 8 is completely housed in the main body case 7 from the beginning up to the front end portion. By opening the lid member 6 and rotating the spool 5, the photographic film 8 is attached to the main body. This is a method of feeding out of the case 7. The detailed structure of such a photographic film cartridge is described in, for example,
No. 4564, and the like.

The label 9 attached to the main body case 7 includes:
Photo film patrone 2 such as ISO sensitivity and number of shots
And a graduation section 11 for recording the number of unexposed shot frames by the user is provided. This graduation section 11 has a graduation indicating the number of unexposed shot frames, for example, when a photographic film of 40 shots is taken.
It is written every 5 sheets from 0 sheets to 0 sheets.

When the label 9 is affixed to the main body case 7, an uneven portion 12 shown in FIG. The uneven portion 12 is provided with a large number of uneven portions arranged in a straight line and is covered with the scale portion 11 of the label 9.

With such a configuration, as shown in FIG. 1, an arbitrary position of the scale 11 is pushed by, for example, a toe or an outer edge of a coin so that the scale 11 is damaged.
Is partially broken into the concave portion of the concave-convex portion 12, and a mark 13 indicating the number of unexposed photographed frames can be engraved on the scale portion 11.

The operation of the photographic film cartridge configured as described above will be described. Photo Film Patrone 2
Do not shoot all shot frames for some reason from the camera loaded with, Photo Film Patrone 2 in the middle
When taking out the photographic film 8, the rewinding mechanism of the camera is operated, and the photographic film 8 is wound up into the main body case 7 to the tip, and then taken out. At this time, the cover member 6 is closed by the mechanism on the camera side after the winding of the photographic film 8 is completed.

Since the photo film cartridge 2 taken out of the camera is in a state where the photo film 8 has been exposed up to the photographing frame in the middle, rewinding is started in order to photograph again using this photo film cartridge 2. The number of unexposed frames is recorded by looking at the counter display of the camera at the time. The recording of the number of unexposed shot frames is performed by first turning the scale 11 of the label 9 upward, for example, by using a toe or an outer edge of a coin.
Push in the upper position to scratch.

Below the graduation 11, an uneven portion 12 is provided.
When the scale 11 is pressed with a toe or an outer edge of a coin, a part of the scale 11 is easily torn and scratched, and is recessed in the direction of the uneven portion 12. As a result, a mark 13 indicating the number of unexposed photographed frames is formed on the scale portion 11, and the number of unexposed photographed frames can be easily grasped when the photo film cartridge 2 is used again.

A scale 11 is printed on the label 9 of the photographic film cartridge 2, and a concave / convex portion 12 is provided in the main body case 7 located below the scale 11, so that a writing implement, a memo paper, etc. , The mark 13 indicating the number of unexposed shot frames can be recorded simply by pushing the scale section 11 with a toe or the like.
Furthermore, since the mark indicating the number of unexposed frames is recorded directly on the label 9 of the photo film cartridge 2, even if there are a plurality of photo film cartridges, there is no mistake in the recording data, and the recording data is lost. It doesn't happen.

FIG. 3 is an explanatory view showing a second embodiment of the photographic film cartridge of the present invention. The basic configuration of the photo film cartridge 32 in this embodiment is the same as that of the previous embodiment, but a groove 41 is provided in a portion of the main body case 37 where the scale 31 printed on the label 39 is located. A pressure-sensitive member 42 for coloring only the pressed portion is attached to the groove 41.

With this configuration, when the photographic film cartridge 32 is taken out halfway without taking all the frames, the pressure-sensitive member 42 is sharpened with the tip of the pressure-sensitive member 42 as a guide of the scale 31. When pressed with an object or a toe, the pressure-sensitive member 42 is colored to form a mark 43. When using the photographic film cartridge 32 again, the number of shot frames of the unexposed photographic film 45 can be easily grasped. Can be.

In each of the above-described embodiments, in addition to providing the scale on the label, the uneven portion and the pressure-sensitive member are provided. However, it is needless to say that only the scale may be provided on the label. In this case, it is convenient to put a pen or pen tip in the camera body or the strap for recording. Further, in each of the above-described embodiments, the number of unexposed film frames is displayed on the scale of the label, but, of course, the number of exposed film frames may be displayed. In addition to the information on the number of frames such as already taken, a memo column for information such as shooting date is provided in the same manner as in the above-described embodiments, and other photographic information is recorded by marking this memo column. You may do so.

In each of the above-described embodiments, a photo film cartridge having a light-shielding lid and capable of feeding out the photo film by rotating the spool is used as a photo film cartridge. The same can be applied to a photographic film cartridge. When used in conjunction with the camera described in JP-A-57-49939, when a photographic film cartridge is taken out halfway, the film count information is maintained as it is, which is convenient for transferring the number of frames.

[0025]

As described above in detail, according to the photographic film cartridge of the present invention, a label indicating a scale indicating the number of unexposed film frames is attached to the surface of the main body case of the photographic film cartridge. By marking a mark on the scale corresponding to the number of unexposed film frames, an indication of the number of unexposed film frames was recorded. It has become possible to provide a photographic film patrone in which the number of unexposed photographed frames of the taken out photographic film patrone can be easily grasped.

[Brief description of the drawings]

FIG. 1 is an external perspective view showing a photographic film cartridge of the present invention.

FIG. 2 is a perspective view showing a state where a part of the label of FIG. 1 is peeled off.

FIG. 3 is an explanatory view showing a second embodiment of the photographic film cartridge of the present invention.

[Explanation of symbols]

 2 Photo film patrone 9 Label 11 Scale 12 Uneven part 13 Mark

Claims (4)

[Claims] 1. A label indicating a scale indicating the number of unexposed or exposed film frames is provided on a main body case of a photographic film patrone, and a standard of the number of used frames of the film is recorded on the scale. Photo film patrone. 2. A rugged portion in which a plurality of rugged portions are provided in a straight line in parallel on a surface of a main body case of a photographic film patrone, and a scale indicating the number of unexposed film frames is displayed on the upper surface of the rugged portion. Affixing a label and recording a rough indication of the number of unexposed film frames by recessing a part of the label toward the uneven portion at a position corresponding to the number of unexposed film frames on the scale. Characteristic photo film patrone. 3. A pressure-sensitive material is adhered to the surface of the main body case of the photographic film patrone, and a label printed with a scale indicating the number of unexposed film frames is adhered near the pressure-sensitive material. A photographic film cartridge, wherein an indication of the number of unexposed film frames is recorded by pressing the pressure-sensitive material at a position corresponding to the number of unexposed film frames to cause the pressure-sensitive material to develop color. 4. A memo area capable of recording an estimate of the number of unexposed film frames without using a tool such as a writing instrument on a surface of a main body case of the photographic film patrone. Photo film patrone.