JP2000206665A - Film leader and structure for splicing film leader and photographic film - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a film leader and structure for splicing the film leader and photographic film capable of preventing the photographic film from coming off from the film leader in a photographic processor and drastically reducing labor required for splicing operation. SOLUTION: By cutting the vicinity of either end of the film leader 1 in a feeding direction, a locking piece 6 coupled with a film leader 1 at a base part 6b so that a leading edge 6a going toward the other edge side in the feeding direction may freely rise and tilt is formed. An engaging hole 10 having size large enough to insert and fit the locking piece 6 is bored at the vicinity part of the leading edge of the photographic film 4. In a state where the locking piece 6 is fit and inserted in the hole 10, the locking piece 6 and the leading edge of the film 4 locked on the locking piece 6 is stuck to the surface of the film leader 1 at a position adjacent to them through an adhesive tape 5.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a film reader for guiding photographed photographic film into each processing tank of a photographic processing apparatus, and to a joining structure between the film reader and the photographic film.

[0002]

2. Description of the Related Art In a so-called minilab type photographic processing apparatus used in a relatively small-scale developing laboratory, the leading end of a photographed photographic film drawn from a patrone is joined to a film reader, and this film reader is used. The photographic film is guided into the respective processing tanks of the photographic processing apparatus for development processing (see Japanese Patent Application Laid-Open Nos. 60-191257 and 4-142539).

FIG. 7 shows a conventional film reader 1a generally used in such a case, and also shows a bonding structure between the film reader 1a and the photographic film 4a. As is well known, the film reader 1a is formed in a substantially rectangular shape from a flexible synthetic resin sheet, and a plurality of feed holes 2 are formed at predetermined intervals along a center line in the feed direction (longitudinal direction). Has been drilled. To this film reader 1a, a photographic film 4a of 35 mm size whose leading end portions are pulled out from two patrones 3 is joined.

[0004] The photographic film 4a has a narrow portion (so-called tongue) provided at the leading end of the film cut off, and the leading edge of the photographic film 4a is brought into contact with the edge of the film reader 1a in the feeding direction. And a film reader 1a and a photographic film 4a, which are joined via an adhesive tape (splicing tape) 5 attached thereto. In this state, when the photographic film 4a is set in a film loading section of a photographic processing device (not shown), the photographic film 4a is sequentially led through a film reader 1a to sequentially execute processing tanks for developing, bleaching, fixing, washing, etc. of the photographic processing device. It passes.

[0005]

By the way, in the prior art, the film reader 1a is operated only by the adhesive force of the adhesive tape 5.
And the photographic film 4a, if the adhesive tape 5 is not adhered properly, the film tension is applied when passing through each processing tank.
photographic film 4a comes off from the photographic film 4
a becomes crumpled and jams inside the photographic processing apparatus, which takes time to remove and restore the apparatus, and also causes a serious situation in which the photographic film 4a is damaged and printing becomes impossible. Therefore, in order to prevent the photographic film 4a from being detached from the film reader 1a during the processing, after sticking the adhesive tape 5, it is rubbed with a spatula from above, so that the adhesive tape 5 and the film reader 1a and the photographic film 4a are The air bubbles that had entered were expelled to the outside, and the two were completely adhered to each other.

However, in order to expel air bubbles as described above, it is necessary to carefully rub the surface of the adhesive tape while pressing the spatula with a sufficiently strong force. Cost 15 days a day
In laboratories that process as many as 100 to 2000 photographic films, workers may even have tendonitis. In addition, since a strong force is required as described above, it is impossible for a weak person such as an elderly person or a physically handicapped person to engage in work.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and can prevent a photographic film from being detached from a film reader in a photographic processing apparatus and greatly reduce the labor required for a joining operation. It is an object of the present invention to provide a film reader capable of performing the above-described operations and a bonding structure between the film reader and the photographic film.

[0008]

According to the present invention, there is provided a film reader comprising a flexible sheet for guiding a photographic film into each processing tank of a photographic processing apparatus. And a locking piece formed by cutting a portion near one end in the feeding direction of the film reader, and the locking piece is configured such that a tip end toward the other end side in the feeding direction of the film reader can be raised and lowered. The base is connected to a film reader at the base, and is configured to be able to be inserted into an engagement hole formed in the photographic film.

Further, in the bonding structure of the film reader and the photographic film according to the present invention, a portion near one end in the feeding direction of the film reader is cut so that the leading end toward the other end in the feeding direction of the film reader can be raised and lowered. As described above, a locking piece connected to a film reader at the base is formed, and an engaging hole sized to allow the locking piece to be inserted is formed in the vicinity of the leading end of the photographic film. A locking piece and a photographic film tip locked by the locking piece are attached to the surface of the film reader at a position adjacent to the locking piece via an adhesive tape in a state of being inserted into the engagement hole of It is.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to FIG.
This will be described with reference to FIG. The film reader 1 according to this embodiment is formed in a substantially rectangular shape with rounded corners from a synthetic resin sheet having flexibility similarly to the conventional film reader 1a, and a photographic processing device (not shown). ), A plurality of feed holes 2 are formed at predetermined intervals along a center line in the feed direction f (in this case, a direction parallel to the longitudinal direction of the film reader 1). The feed hole 2 is provided for engaging with a transport sprocket, belt, or the like (not shown) of the photographic processing apparatus to feed the film reader 1 along a predetermined transport path.

The film reader 1 is formed with a pair of locking pieces 6 for locking the photographic film, as will be described later, at symmetrical positions across the row of the feed holes 2. As shown in FIG. 2, each locking piece 6 is
Is formed in a triangular shape by making an inverted V-shaped cut 7 near one end in the feed direction f. Except for the base 6 b connected to one end of the film reader 1, these locking pieces 6 are separated from the surrounding film reader 1 main body by cuts 7. Then, the locking piece 6 is moved toward the other end of the film reader 1 in the feeding direction f.
Of the film reader 1 can be freely raised and lowered between an upright position (not shown) raised obliquely from the film reader 1 and a falling position along the surface of the film reader 1.

On the other hand, the photographed 35 mm-sized photographic film 4 is subjected to edge processing as shown in FIG. 3 after the leading end portion is pulled out from the patrone 3 and before being joined to the film reader 1. . That is, the portion including the narrow portion (bello) 8 provided at the forefront of the film is cut over a predetermined length D, and the vicinity of the leading end separated by a predetermined distance E from the leading edge 9 after the cutting. An engagement hole 10 having a size into which the locking piece 6 can be inserted is formed in the portion. The engagement hole 10 has a flat, substantially semi-cylindrical shape having a short length F in the longitudinal direction of the photographic film 4 and a long width G in a direction perpendicular thereto. The width G of the engaging hole 10 is set to be slightly larger than the width C (see FIG. 2) of the base 6 b of the locking piece 6, and from the leading edge 9 of the film 4 to the engaging hole 10. Is set to a dimension that is equal to or less than half the length B of the locking piece 6 (see FIG. 2).

Incidentally, the edge processing of the photographic film 4 as described above includes, for example, a base plate provided with a guide groove capable of holding an end of the photographic film 4 at a predetermined position, and a photographic film 4 held by the base plate. By preparing a cutting machine having a mold blade capable of simultaneously cutting the portion including the narrow portion 8 and punching out the engagement hole 10, the cutting can be performed extremely accurately and efficiently.

The above-described film reader 1 and photographic film 4 are joined as follows. That is, by pushing the locking piece 6 from the back side of the film reader 1 (which side may be the back side), the front end 6a is erected upright on the front side of the film reader 1. Then, in this state, the locking piece 6 is inserted into the engagement hole 10 from the back side of the photographic film 4, and then the photographic film 4 is pulled until it stops toward the rear end opposite to the front end side. The front end of the engaging hole 10 is locked by the base 6b. Thus, the width of the photographic film 4 is 10
As shown in FIG. 4, an adhesive tape (splicing tape) 5 cut to a length of about millimeters is used to lock a locking piece 6 and a front end portion of the photographic film 4 locked to the locking piece 6 (the tip of the photographic film 4 is smaller than the engaging hole 10). (A portion near the front end) and the surface of the film reader 1 at a position adjacent to these portions. Thereby, the locking piece 6 and the front end of the photographic film 4 are adhered to the surface of the film reader 1 via the adhesive tape 5 (FIG. 1).
State).

In this state, when the photographic film 4 is set in a film loading section of a photographic processing apparatus (not shown) with the other end of the film reader 1 to which the photographic film 4 is not bonded facing forward, the film reader 1 moves in the feeding direction f. The photographic film 4 is sent along the patrone 3 while being guided by the film reader 1.
, And sequentially pass through processing tanks for developing, bleaching, fixing, washing, etc. of the photographic processing apparatus. Note that the rear end of the photographic film 4 is automatically cut by a cutting device provided in the photographic processing device when the photographic film 4 is fully pulled out of the patrone 3, whereby the photographic film 4 and the patrone 3 are separated.

As described above, in this embodiment, the locking piece 6 is inserted into the engaging hole 10 and the photographic film 4 is inserted.
In this state, the locking piece 6 and the leading end of the photographic film 4 are adhered to the surface of the film reader 1 with the adhesive tape 5, so that the film tension when passing through the photographic processing device is mainly The adhesive tape 5 is transmitted to the film reader 1 via the stopper 6 and mainly serves to prevent the stopper 6 from rising. Therefore, unlike the conventional case where the photographic film is bonded only by the adhesive force of the adhesive tape 5, even if the adhesiveness of the adhesive tape 5 is somewhat poor, the photographic film 4 does not come off from the film reader 1 in the photographic processing apparatus. Absent. Therefore, various troubles caused by the detachment of the photographic film 4 can be prevented.

As described above, the adhesive tape 5 only needs to be able to prevent the locking piece 6 from rising.
It does not matter if some air bubbles enter between the film reader 1 and the photographic film 4 or the like. Therefore, it is no longer necessary to rub the surface of the adhesive tape 5 with a spatula with a spatula and rub the air carefully to expel the air bubbles. This greatly reduces the labor required for the joining operation. In addition, because there is no need for work,
People with weak skills can also work, which can contribute to expanding employment for the elderly and the disabled.

Further, if the locking piece 6 is merely inserted into the engagement hole 10 and the adhesive tape 5 is not adhered thereon, the film reader 1 may be transported in the photographic processing apparatus. When the film is bent or when a certain amount of film tension is applied, the locking piece 6 rises from the surface of the film reader 1 and its tip 6a is attached to a part (for example, a film) near the transport path in the photo processing apparatus. Guide pieces, holding rollers, etc.), and may be bent further backward, causing the locking pieces 6 to be broken or the locking pieces 6 to be disengaged from the engagement holes 10. On the other hand, in this embodiment, since the locking piece 6 is prevented from standing up by the adhesive tape 5, the above-described trouble does not occur.

Furthermore, since the physical strength of the base material of the 35 mm photographic film 4 is particularly low, when the adhesive tape 5 is not adhered, the photographic film 4 is locked by the locking piece 6 when the film tension is applied. The photographic film 4 is easily cut at both ends on the front side of the engaging hole 10 which is
However, in this embodiment, since the adhesive tape 5 reinforces the fragile portion of the photographic film 4 and improves the strength, the photographic film 4 does not break during the conveyance.

Further, in this embodiment, the conventional film reader or photographic film only needs to be cut or perforated, and there is no need for any special joining members which have not been used in the past. There is also an advantage that it can be implemented at substantially the same low cost as the joining structure using only tape.

It is needless to say that the embodiment of the present invention is not limited to the above description. For example, the shape of the locking piece is arbitrary, and the notch 17 shown in FIG.
A trapezoidal locking piece 16 formed by the above-described method and an inverted U-shaped locking piece 26 formed by a cut 27 as shown in FIG. Further, the shape of the engagement hole formed in the photographic film 4 is not limited to the above-mentioned one, and is arbitrary. Further, in the above description, two photographic films 4 are bonded to one film reader 1, but when one photographic film is bonded to one film reader, or three or more photographs are bonded to one film reader. When joining films,
The present invention is applicable.

[0022]

As described above, according to the present invention,
By attaching the locking piece of the film reader to the engaging hole of the photographic film with the locking piece inserted into the engaging hole of the photographic film, by attaching the locking piece and the leading end of the photographic film to the surface of the film reader via an adhesive tape,
Since the film reader and the photographic film are joined, the film tension when passing through the inside of the photographic processing device is mainly transmitted to the film reader via the locking pieces.
Therefore, unlike the conventional case where the photographic film is bonded only by the adhesive force of the adhesive tape, the photographic film does not come off from the film reader in the photographic processing apparatus, and various troubles caused by the photographic film coming off can be prevented. In addition, since the adhesive tape mainly plays a role of preventing the locking pieces from standing up, strong adhesive force is not particularly required, and the adhesive tape is rubbed carefully while strongly pressing the adhesive tape surface with a spatula as in the past. This eliminates the need for labor-intensive work to expel air bubbles. Therefore, the labor required for the joining operation can be greatly reduced, and the employment of the elderly and the physically handicapped can be increased.

[Brief description of the drawings]

FIG. 1 is a plan view showing a joint structure between a film reader and a photographic film according to an embodiment of the present invention.

FIG. 2 is an enlarged plan view of a main part of the film reader.

FIG. 3 is a main part plan view for explaining edge processing of a photographic film.

FIG. 4 is an enlarged plan view of a main part showing a bonding structure between a film reader and a photographic film.

FIG. 5 is an enlarged end view of a cut portion taken along line AA of FIG. 4;

FIG. 6 is an explanatory plan view illustrating another form of the locking piece.

FIG. 7 is a plan view showing a conventional bonding structure between a film reader and a photographic film.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Film reader 4 Photographic film 5 Adhesive tape 6,16,26 Engagement piece 6a Tip 6b Base 7,17,27 Cut 10 Engagement hole

Claims (2)

[Claims] 1. A film reader comprising a flexible sheet for guiding a photographic film into each processing tank of a photographic processing apparatus, wherein the film reader is formed by cutting a portion near one end in a feed direction of the film reader. The engaging piece is connected to the film reader at the base such that the leading end toward the other end in the feeding direction of the film reader can be raised and lowered, and the engaging piece is formed in the photographic film. A film reader characterized in that it can be inserted into a film reader. 2. A structure in which a film reader made of a flexible sheet for guiding a photographic film into each processing tank of a photographic processing apparatus and a photographed photographic film are joined, and one end of the film reader in a feed direction is provided. Cut in the neighborhood,
A locking piece connected to the film reader at the base is formed so that the leading end of the film reader toward the other end in the feeding direction can be raised and lowered, and the locking piece can be inserted near the leading end of the photographic film. When the engaging piece is inserted into the engaging hole of the photographic film, the engaging piece and the leading end of the photographic film engaged with the engaging piece are positioned adjacent to each other. A film reader and a photographic film, wherein the film reader is attached to the surface of the film reader through an adhesive tape.