JPS5924411B2 - Film engagement mechanism in photographic film hanging and guidance tools - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a method for suspending a film on a hanging tool such as a hanger, which is mainly used when developing, drying, etc. photographic film, or for hanging the film on a guiding tool such as a leader. This invention relates to an improvement of a film engagement mechanism for connection.

The film is attached to a conventional hanging tool such as a hanger, which is commonly used in a so-called automatic developing machine that performs a complete process from development to drying on exposed photographic film. Hanging 5 The means for hanging or connecting the film to guiding tools such as leaders can be roughly divided into two types: a clamping method using elasticity and a connecting method using adhesive tape. Both types require a lot of effort and adjustment for the clamping and connection work.
In addition to being time consuming, the former method had problems with the processing liquid pooling and marks that tend to occur in the clamping part, and the latter method had problems with peeling, which is the most feared problem during processing operations. The problem has been ignored by most people as a trivial matter, but it has been greatly affected by the rapid spread of photo cameras over the past few years, improvements in photographic film, speed improvements resulting from improvements in various processing machines, and the current situation. The economic circumstances of the industry have become more and more prominent, and the current state of affairs is such that a good prescription is becoming a strong demand for this type of industry.

In view of the above-mentioned current situation, the present invention provides an elastic thin plate in which a notch recessed portion is formed by a notch from the edge, and each through hole is formed by drilling the notched recessed portion in between. At one end of the main body, both edges of a concave thin plate made of an elastic thin plate are bent to leave the width of the photographic film to serve as bent edges for fixing to the main body, and opposite side edges in the recessed part. is formed with a claw piece for engaging photographic film, the tip of which can always be exposed to the back surface of the main body through the through hole in the main body, and which slopes downward on the opposite side of the edge of the main body. The lower edge of the film engaging body is slightly protruded from the edge of the main body by its bent edge for fixing, and the film engaging body is fixed with the lower edge of the film engaging body slightly protruding from the edge of the main body, and one end of the photographic film is fixed with the bent edge for fixing. When the film is inserted through the gap between the main body and the film engaging body using the film as a guide, the edge of one end of the film lifts the photographic film engaging claw piece from the through hole of the main body as it advances, and the perforation In this position, the tip of the claw piece for engaging the photographic film is exposed to the back side of the main body through the through hole, making it impossible to pull back the photographic film, which is different from the conventional clamping and connecting methods of this type. As such, it goes without saying that the connecting work does not require any special effort, but it also prevents dripping spots and marks due to the formation of a pool of processing liquid in the connecting part, and the possibility that the photographic film may be removed from the connecting part during processing. The present invention has been made possible to eliminate the fear of detachment and to provide a film engagement mechanism for a photographic film hanging and guide tool that fully meets the strong demands of this type of industry. A detailed explanation will be given based on an illustrated embodiment implemented in a leader as a guiding tool and a leader in a trailer.

In the figure, A is the main body of the leader formed of a long thin plate such as a synthetic resin material, and from the edge 2 of the one end 1, holes are made along both sides of the photographic film F as known in J. A recessed notch 3 having a width narrower than the inner width t1 of the perforations p arranged in parallel is cut into one end 1, and the center spacing between the rows of perforations p is approximately T2 with the recessed notch 3 in between. Through-holes 4, 4, . ... is drilled.

In addition, B is a film engaging body, which first holds both edges of a concave thin plate made of synthetic resin or the like similar to that of the main body part A.
The photographic film F is then folded in the same direction leaving a width h' slightly wider than the width h of the photographic film F.
At a distance longer than the thickness of the thin plate, the lower edges thereof are respectively bent outward to form bent edges 5, 5 for fixing to the upper surface of the one end 1 of the main body A, and opposite sides of the recess of the recessed thin plate. Rim 6,
Cuts 7, 7 are made in 6, and the side opposite to the edge 2 of the main body A has a downward slope so that the tip can pass through the through holes 4, 4 of the main body A and emerge from the back surface thereof. The photographic film engaging claw pieces 8, 8 are formed, and the positions of the left and right notch bottom edges 9, 9 are such that a straight line perpendicular to the line connecting the left and right notch bottom edges 9, 9 is the leader body. The position is such that it can be approximately parallel to the central axis of section A. That is, the photographic film engaging claw pieces 8, 8
is symmetrical. In addition, in addition to the through holes 4, 4 in the main body part A, through holes 4'', 4'' similar to the through holes 4, 4 are provided in separate rows from the through holes 4, 4, as shown in the figure. In the case of drilling, photographic film engaging claw pieces 8/, 8 similar to the photographic film engaging claw pieces 8, 8 are provided at symmetrical positions on the opposing side edges 6, 6 of the film engaging body B. The distance T5 between the bottom edges 9'', 9'' of the cuts and the bottom edges 9, 9 of the cuts 9, 9 for forming the claws 8, 8 for engaging the photographic film is equal to the pitch t of the perforation p in the photographic film F. If possible, the spacing t should be the same (or twice the spacing t'), and the notches 7, 7 should be extended to the photographic film engaging claws 8'', 8', As shown in FIG. 5, the extending pieces 10, 10 formed at the rear part are curved in the opposite direction from the leading end to facilitate the insertion operation when inserting one edge E of the photographic film F.

Then, this film engaging body B is attached to its fixing bent edge 5.
, 5, the lower edge of the film engaging body B is made to protrude slightly from the edge 2 of the main body part A, and is fixed onto the one end part 1 of the main body part A, so that the lower edge of the film engaging body B is made to protrude from the edge 2 of the main body part A. The protruding part 11 on the lower edge of the film engaging body B is inserted into the insertion part of the photographic film F formed by the one end 1 of the main body part A and the film engaging body B, as shown by the arrow X in FIG. The film engaging mechanism section is configured so as to be used for guiding when the film is moved.

As mentioned above, a reader equipped with a film engagement mechanism part,
In order to engage the photographic film F that is about to be processed, as shown in FIG. If the film engaging member B is inserted into the insertion space of the engaging mechanism portion while being guided by the lower surface of the protruding portion 11, one end edge E will be inserted into the photographic film engaging claw piece 8 on both sides as it enters. The tips of the claws 8, 8', 8' are raised one after another from the through holes 4, 4, 4', 4/, and at the positions of the perforations P, p, the tips of the claw pieces 8, 8, 8', 8' The part is perforation P, p and through hole 4, 4, 4'', 4/
It will be exposed to the back surface of the main body part A through.

Therefore, if the photographic film F is pulled in the direction opposite to the direction in which it is inserted into the film engagement mechanism, the perforations P, p
The hole edges engage with the left and right notch bottom edges 9, 9, 95, 9', making it impossible to pull it back any further, and the center axis of the leader and the center axis of the photographic film F coincide or become parallel. .

Then, operation only in the insertion direction is possible. That is, the work of engaging the photographic film F to the reader may be a simple insertion work.

A developing operation is performed by the leader with which the photographic film F is engaged in this way, and for this process, a notch recess 3 is formed at one end 1 of the main body A from the edge 2;
Since a concave thin plate is used as the film engagement body B, processing liquid is less likely to accumulate, eliminating concerns about dripping spots.
There is no fear that the photographic film F will separate from the leader during processing.

In the illustrated embodiment, the film engaging mechanism part is constructed by disposing the film engaging body B only at one end 1 of the main body part A. However, if the main body part has a wide width, It is also possible to arrange several film engagement mechanisms at one end thereof. As is clear from the above description, according to the film engagement mechanism in the photographic film hanging and guiding tool according to the present invention, when engaging the photographic film, there is also a guide part and the simplest It is possible to engage only by insertion work, and at the same time, it eliminates the need for a large amount of labor and adjustment of directionality, etc., as required by conventional clamping methods and connection methods, etc. The present invention eliminates not only drip spots and marks caused by pooling of processing liquid, but also concerns about peeling of the photographic film during processing operations, and thus meets the growing demand for this type of industry. This makes it possible to provide a photographic film hanging and guidance tool that can fully meet the needs of the industry.

[Brief explanation of drawings]

The drawings show the structure of an embodiment of the film engagement mechanism in the photographic film hanging and guiding tool according to the present invention, and FIG. 1 is a perspective view of the film together with the photographic film, and FIG. FIG. 3 is an end view of only one embodiment, FIG. 3 is a perspective view of only the main body portion thereof, FIG. 4 is a perspective view of only the film engaging body, and FIG. 5 is an enlarged perspective view of a portion thereof. A2 main body part, 1; one end part, 2; edge, 3; recessed notch part,
4, 4''; Through hole, B: Film engaging body, 5; Bent edge for fixing, 6; Side edge, 7, 7'; Notch, 8, 8'; Claw piece for engaging photographic film, 9, 9 ′; bottom edge of the cut, 10; extended piece, 11; protrusion, F: photographic film, p: perforation.

Claims (1)

[Scope of Claims] 1. A main body made of an elastic thin plate, in which a cutout recess is formed by a cutout from an end edge, and each through hole is formed by drilling the cutout recess in between. At one end, both edges of a concave plate made of an elastic thin plate similar to the main body are bent leaving the width of the photographic film to serve as bent edges for fixing to the main body. A photographic film engaging claw piece is formed, the tip of which can always be exposed to the back surface of the main body through the through hole, and which slopes downward in a direction opposite to the edge of the main body. The film engaging member is fixed on one end of the main body with its lower edge protruding slightly from the edge of the main body by its bent edge for fixing, and one end of the photographic film is fixed onto the film engaging member. When the film is inserted through the gap between the main body and the film engaging body using the protruding part of the connecting body as a guide, the edge of one end of the film lifts the photographic film engaging claw piece from the through hole of the main body as it advances. , at the perforation position, the tip of the photographic film engaging claw protrudes through the through hole to the back surface of the main body, making it impossible to pull back the photographic film. Film engagement mechanism for hanging and guiding tools for photographic film. 2. Suspension of photographic film as described in claim 1 above, suspension by a film engagement mechanism in a guide tool, widening the width of the guide tool, and arranging several film engagement mechanisms at one end thereof. A film engagement mechanism characterized in that it is provided with a film engagement mechanism. 3. A leader for use in an automatic photographic film processor equipped with the film engagement mechanism set forth in claim 1. 4. A trailer used in an automatic photographic film developing machine equipped with the film engaging mechanism set forth in claim 1. 5. A hanger for use in an automatic photographic film processor equipped with the film engagement mechanism set forth in claim 1.