JP2937284B2 - Photo film package - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a photographic film package, and more particularly to a photographic film package in which a sheet-like photographic film is stored in a light-shielding envelope so as to be freely taken in and out.

[0002]

2. Description of the Related Art As a professional photographic film, a photographic film package in which a relatively large-sized sheet-like photographic film is light-tightly stored in a light-shielding envelope is known. For example, in a film unit of a photographic film package described in Japanese Patent Application No. 3-261122, a first carrier sheet is attached to a rear end side of a photographic film, and a second carrier is mounted to a front end side of the photographic film. The seat is attached. Also, a clip is attached to a leading edge of the first carrier sheet,
This clip can close the light-shielding envelope insertion port when the film unit is stored in the light-shielding envelope.

[0003] The photo film package is inserted into a film holder mounted on the back of a camera with the clip as a tip, and the clip is locked in the film holder body. At the time of photographing, the front end of the light-shielding envelope is pinched with a finger to pull out only the light-shielding envelope, and the photographic film is exposed through an exposure opening formed in the film holder. When the photographing is completed, the light-shielding envelope is pinched and pushed with a finger, the insertion opening of the light-shielding envelope is closed with a clip, and the film unit is housed in a light-tight manner. Then, after releasing the clip lock of the film holder, the leading end of the light-shielding envelope is pinched with a finger, and the light-shielding envelope is pulled out from the film holder together with the film unit.

[0004]

However, in the conventional photographic film package, it is impossible to visually determine whether or not the photographic film package has been exposed. There is a drawback that The present invention has been made in view of such circumstances, and has as its object to provide a photographic film package that can easily identify whether or not exposure has been completed.

[0005]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a photographic film, comprising: a film unit having a clip fixed to the photographic film; and an insertion opening closed by the clip. And a light-shielding envelope that stores light-tightly in a photo film package.
The light-shielding envelope is formed on the light-shielding envelope.

[0006]

According to the present invention, when the photographic film package is inserted into the film holder, the exfoliated portion formed on the light-shielding envelope is separated, so that the exposed photographic film package can be easily identified.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of a photographic film package according to the present invention will be described below in detail with reference to the accompanying drawings. FIG. 1 is a plan view of a photographic film package 10 according to the present invention, showing a state where a film unit 14 is pulled out from a light-shielding envelope 12.

As shown in FIG. 2, the light-shielding envelope 12 is composed of an upper sheet 16 and a lower sheet 18. The upper sheet 16 and the lower sheet 18 are formed of strip-shaped connecting sheets 20, 22 coated with an adhesive. Both ends are joined.
Each of the sheets 16 to 22 is made of black paper mixed with carbon in order to obtain a sufficient light-shielding property. The tip 16a of the upper sheet 16 has a trapezoidal shape, and an adhesive 24 is applied to the edge of the trapezoid similarly to the lower sheet 18. The rear end 16b forming the insertion opening 26 is cut in a V-shape, and both end portions thereof are folded outward along a folding curve 28 and joined. Thus, by folding back the insertion port 26, the strength of the insertion port 26 can be increased, and the insertion port 26 can be smoothly fitted into the clip 30 of the film unit 14 shown in FIG.

As shown in FIGS. 1 and 2, a substantially trapezoidal reinforcing sheet 32 is adhered to the tip 16a of the upper sheet 16. A substantially arc-shaped release sheet 34 is formed on an edge 32 a of the reinforcing sheet 32 so as to be able to be folded back along a folding curve 36. Further, the surface of the upper sheet 16 corresponding to the release sheet 34 has “EX
P "mark 38 is engraved or printed. In the vicinity of the rear end 16b of the upper sheet 16, a stopper tape 40 for regulating the position of the photo film package 10 in a film holder (not shown) is adhered.

As shown in FIG. 3, the film unit 14 has a photographic film F, and a first carrier sheet 42 to which the above-mentioned clip 30 is fixed is attached to the rear end of the photographic film F. Have been. A second carrier sheet 46 is adhered to the leading edge of the photographic film F via a step correction sheet 44. FIG. 4 shows a film holder 48 in which the photographic film package 10 according to the present invention is used.

Referring to FIG. 1, the film holder 48 includes an entrance 50 for taking the photo film package 10 in and out of the film holder 48, and the photo film F.
And a rectangular exposure opening 52 for exposing the light. Further, the peeling claw 54 shown by a dotted line in the figure is
It is provided near zero. The release claw 54 is disposed at a position corresponding to the release sheet 34 in the width direction of the photo film package 10 shown in FIG. As shown in FIG. 5, the peeling claw 54 is formed in a substantially crescent shape, and is disposed in the passing area 60 of the photographic film package 10 formed by the top cover 56 and the bottom cover 58 constituting the film holder 48. You. The peeling claw 54 is rotatably attached to the surface of the bottom lid 58 with a pin 62 attached to the center thereof as a pivot point. And is urged counterclockwise.

Next, the use of the photo film package 10 configured as described above will be described. First, the photo film package 10 is inserted into the film holder 48 from the entrance 50 of the film holder 48 shown in FIG. When inserted, the clip 30
5 comes into contact with the right end portion 54b of the peeling claw 54 in the drawing as shown in FIG. As a result, the photo film package 1
The zero clip 30 passes through the peeling claw 54 as shown in FIG. When the clip 30 passes, the peeling claw 54 returns to the original position by the urging force of the spring 64, so that the right end 54b presses and abuts on the light-shielding envelope 12.

In this state, the photo film package 10
Is further pushed in, the right end portion 54b of the peeling claw 54 slides in a state of contact with the light-shielding envelope 12, and the peeling sheet 34
, And the release sheet 34 is folded back as shown in FIG. As a result, the "EXP" mark 38 attached to the light-shielding envelope 12 is exposed as shown in FIG. 8, so that the exposed photographic film package 10 can be easily identified in appearance.

When the photo film package 10 is inserted into the final position, the clip 30 is locked by the film holder. At the time of photographing, the light-shielding envelope 12 is grasped from above the reinforcing sheet 32 with a finger. Then, only the light-shielding envelope 12 is pulled out from the film holder main body, the photographic film F is exposed through the exposure opening 52 of the film holder 48, and after photographing, the reinforcing sheet 32 is pinched and pushed in with the finger, and the film unit 14 is moved to the light-shielding envelope. 12 to be stored. Next, the clip lock of the film holder is released, and the light-shielding envelope 12 is pulled out of the film holder 48 together with the film unit 14. The photographic film package 10 pulled out from the film holder 48 includes:
As described above, the “EXP” mark 38 is exposed.

FIG. 9 shows a light-shielding envelope 68 applied to a second embodiment of the photographic film package 66 according to the present invention. Reinforcing sheet 7 attached to light-shielding envelope 68
0, a rectangular peeling portion 72 is formed.
2 is torn along the pair of perforations 74, 74, and the peeling portion 72 is separated from the reinforcing sheet 70. Also, the peeling section 7
An “EXP” mark 38 indicating exposure has been engraved or printed on the surface of the corresponding upper sheet 16.

Therefore, according to the photo film package 66 of this embodiment, by inserting the photo film package 66 into the film holder 48 shown in FIG.
Since the peeling portion 72 is torn along the perforations 74, 74 and the peeling portion 72 is separated from the reinforcing sheet 70, the "EXP" stamped on the upper sheet 16 is exposed.

As a result, the second embodiment can obtain the same effects as those of the first embodiment.

[0018]

As described above, according to the photographic film package according to the present invention, when the photographic film package is inserted into the film holder, the peeling portion formed on the light-shielding envelope peels off, so that whether or not the exposure has been completed. Photo film package can be easily identified.

[Brief description of the drawings]

FIG. 1 is a plan view showing a first embodiment of a photo film package according to the present invention.

FIG. 2 is an assembly view showing an embodiment of a light-shielding envelope applied to a photo film package according to the present invention.

FIG. 3 is a perspective view showing an embodiment of a film unit applied to a photographic film package according to the present invention.

FIG. 4 is a plan view of a film holder in which the photo film package according to the present invention is used.

FIG. 5 is a side view of the peeling claw attached to the film holder.

FIG. 6 is an explanatory view showing a state in which the clip of the photo film package has passed through the peeling nail.

FIG. 7 is an explanatory view showing a state in which the peeling claw is folded over the peeling sheet.

FIG. 8 is a plan view showing an embodiment in which the peeling portion of the photo film package according to the present invention is folded back.

FIG. 9 is a plan view showing a second embodiment of the photo film package according to the present invention.

[Explanation of symbols]

 10, 66 photo film package 12, 68 light shielding envelope 14 film unit 30 clip 32, 70 reinforcing sheet 34 release sheet 42 first carrier sheet 46 second carrier sheet 48 film holder 54 release nail F ... Photo film

Continuation of front page (58) Field surveyed (Int.Cl. ⁶ , DB name) G03C 3/00 G03B 17/32-17/34

Claims (1)

(57) [Claims] 1. A photo film package comprising: a photo film unit having a clip fixed to the photo film; and a light-shielding envelope having an insertion opening closed by the clip and containing the photo film in a light-tight manner. A photo film package, characterized in that a peeling portion peeled off by an insertion operation into a film holder is formed in the light-shielding envelope.