JPH06242581A - Film connecting tool - Google Patents

Abstract

PURPOSE:To provide a film connecting tool capable of accurately and firmly connecting a film to a leader. CONSTITUTION:An expanding part 2 is formed on the central part of one surface of a connecting piece 1. A linear leader positioning part 3 and a film positioning part 4 which is inclined with respect to the leader positioning part 3 are provided at opposed positions on the outer periphery of the part 2. An adhesive layer is formed on both ends of the one surface of the connecting piece 1. The leader positioning part 3 is abutted on the one side of a leader L, and the connecting piece 1 is fixed to the leader L in a state where the connecting piece 1 is positioned to the leader L. The inclined edge on the leading edge of the film F is abutted on the film positioning part 4, so that the film F is positioned, and the film F is adhered to the connecting piece 1.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a film connector used for connecting a film having been photographed to a reader.

[0002]

2. Description of the Related Art Generally, when developing a film that has been photographed by an automatic film developing machine, the film is connected to a leader, and the leader is put in advance to convey the film to the developing section of the automatic film developing machine. There is.

When connecting a film to a leader, conventionally, as shown in FIG. 7, the tip of the film F pulled out from the cartridge P is cut at a right angle to the side edge, and the tip is made into the edge of the leader L. They are connected by butting and attaching the splice tape piece T.

By the way, the film F has a base surface and an emulsion surface, and the base surface has a weaker adhesive force than the emulsion surface, and there is a risk of peeling when the splice tape piece T is stuck on the base surface. Therefore, the splice tape piece T is usually attached to the emulsion surface.

[0005]

Since the base surface and the emulsion surface of the film F are different in color, the emulsion surface can be identified by the color. However, if the operator is inexperienced, the splice tape piece T can be attached to the base surface. Was often pasted.

If the splice tape piece T is stuck wrongly, the film F may come off the leader L during the development process of the film F, and it is extremely difficult to take out the film F, and the film F is exposed to light. There is.

Therefore, as shown in FIG. 8, if an inclined edge C is provided at the tip of the film F in advance, the base surface and the emulsion surface of the film F can be discriminated from the inclination direction of the inclined edge C. By adhering the film F to the leader L so that the inclination direction of the inclined edge C is always constant, the splice tape piece T can be surely adhered to the emulsion surface of the film F, which is caused by an improper attachment. It is possible to prevent trouble from occurring.

Further, if an inclined edge C is provided at the front end of the film F, when the film is loaded into a camera having an automatic film loading function, the film F is guided with respect to a guide for guiding the film F between the film feed rollers. There is also an advantage that the tip can be easily inserted and the film can be easily loaded.

By the way, in the case of the film F having the slanted edge C, since the leader L and the film F cannot be positioned relative to each other, the leader F and the film F are aligned in a straight line. The problem arises that it is difficult to connect.

An object of the present invention is to provide a film connector which can connect a film having an inclined edge at its tip to a reader with extremely high accuracy and easily and firmly.

[0011]

In order to solve the above-mentioned problems, the present invention provides a bulging portion on one surface of a connecting piece, and the bulging portion of both end portions located in both end directions of the connecting piece. A leader positioning portion is provided on one side, and a film positioning portion is formed on the other side. The film positioning portion is inclined with respect to the leader positioning portion at an inclination angle substantially equal to the inclination angle of the inclined edge of the film tip. The structure in which the pressure-sensitive adhesive layer is provided on the part is adopted.

Here, the bulging portion may be formed by fixing a positioning piece, which is connected to the side edge of the connecting piece via a fold line, to the connecting piece by bending the positioning piece.

[0013]

When the film is connected to the leader, the leader positioning portion of the connecting piece is brought into contact with one side of the leader in the conveying direction of the leader conveyed to the developing section, and the connecting piece is adhered to the leader. The slanted edge of the film tip is brought into contact with the film positioning portion to bond the film to the connecting piece.

In order to further strengthen the adhesive force of the film, a film sandwiching piece is connected to the side edge of the end of the connecting piece to which the film is adhered via a fold line, and the film sandwiching piece is sandwiched. An adhesive layer may be provided on the surface, and the film sandwiching piece may be bent toward the connecting piece and attached to the film adhered to the connecting piece.

Further, in order to further increase the connecting force between the leader and the film connector, a leader holding piece is continuously provided on the leader positioning side of the positioning piece through a fold line, and an adhesive layer is formed on the leader holding surface of the leader holding piece. May be provided, and the leader sandwiching piece may be bent toward the connecting piece and adhered to the leader adhered to the connecting piece.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of the present invention will be described below with reference to FIGS.

1 and 2 show a first embodiment of a film connector according to the present invention. As shown in the figure, the connecting piece 1 has a rectangular shape, and a bulging portion 2 is provided at the center of one surface.

A linear leader positioning portion 3 is formed on one of both ends of the bulging portion 2 which are located in both ends of the connecting piece 1, and a film positioning portion 4 is provided on the other end.

The leader positioning portion 3 extends in a direction perpendicular to the side edge of the connecting piece 1, while the film positioning portion 4 is
The film positioning part 4 is inclined with respect to the leader positioning part 3, and the tilt angle of the film positioning part 4 is the film F shown in FIG.
Is substantially equal to the inclination angle of the inclined edge C at the tip of the.

Here, the bulging portion 2 may be formed at the same time when the connecting piece 1 is molded with a soft synthetic resin.

Alternatively, as shown in FIG. 3, a trapezoidal positioning piece 6 is continuously provided on one side center 1 of a connecting piece 1 made of water-resistant cardboard or synthetic resin sheet via a fold line 5, and the positioning piece is positioned. 6 may be bent on the connecting piece 1 and fixed to the connecting piece 1. For fixing the positioning piece 6, a method of bonding, a method of forming a hole in one of the facing surfaces of the positioning piece 6 and the connecting piece 1 and providing a protrusion on the other side, and pressing the protrusion into the hole, A method of providing a positioning protrusion can be adopted.

Adhesive layers 7 are provided on both ends of one surface of the connecting piece 1.

The film connector shown in the first embodiment has the above structure, and FIG. 4 shows the connection state of the film F. When connecting the film F, the leader positioning portion 3 of the bulge portion 2 is brought into contact with one side of the leader L conveyed in the developing portion in the conveying direction, and the connecting piece 1 is positioned and connected to the leader L. Glue piece 1. Next, the slanted edge C of the tip of the film F is brought into contact with the film positioning portion 4 of the bulging portion 2, and the film F is bonded to the connecting piece 1 while the film F is positioned.

In the connection of the film F as described above,
Since the leader L and the film F are relatively positioned through the leader positioning portion 3 and the film positioning portion 4 provided on the bulging portion 2, the leader L and the film F are aligned in a straight line. Can be connected very accurately.

Further, since the slanted edge C of the film F is always brought into a constant orientation by the contact with the film positioning portion 4, the emulsion surface of the film F can be reliably adhered to the connecting piece 1, and the connecting piece 1 The film F can be firmly adhered to.

FIG. 5 shows a second embodiment of the film connector according to the present invention. In this embodiment, a film holding piece 9 is continuously provided on one side of the end of the connecting piece 1 to which the film F is connected via a fold line 8, and the film holding surface of the film holding piece 9 has an adhesive layer. 10 is provided.

In this film connecting device, the film holding piece 9 can be adhered onto the film F connected to the connecting piece 1 by bending the film holding piece 9 toward the connecting piece 1. The film F can be more firmly fixed to the tool.

FIG. 6 shows a third embodiment of the film connector according to the present invention. In this embodiment, a leader holding portion 12 of the positioning piece 6 is continuously provided with a leader holding piece 12 via a fold line 11, and an adhesive layer 13 is provided on the leader holding surface of the leader holding piece 12.

The connection of the film connector to the leader L is performed by bending the leader holding piece 12 on the back side of the positioning piece 6 and then bending the positioning piece 6 in the direction in which it overlaps the connecting piece 1. 1 is adhered to the adhesive layer 7 provided on the entire surface, and the positioning piece 6 is adhered to the leader L by positioning the film connector by abutting against the rear end side of the leader L in the transport direction. Then, the leader holding piece 12 is bent and adhered to the leader L. The adhesion allows the leader L to be firmly connected to the film connector.

[0030]

Since the present invention is constructed as described above, it has the following effects.

According to the film connector of the first and second aspects, since the leader positioning portion and the film positioning portion are provided on the bulging portion provided on one surface of the connecting piece, the film having the inclined edge at the tip is formed. It can be accurately connected to the reader in a straight line, and the emulsion surface of the film is always oriented due to the contact of the inclined edge of the film with the film positioning part. It can be surely adhered to the adhesive layer on one side, and the film can be connected very firmly.

According to the film connecting device of the third aspect, since the film holding piece can be attached to the film adhered to the connecting piece, the film can be more firmly connected and at the time of film development. It is possible to reliably prevent the film from peeling off.

According to the film connector of the fourth aspect, since the leader holding piece can be adhered to the leader, the film connector can be more firmly adhered to the leader.

[Brief description of drawings]

FIG. 1 is a perspective view showing a first embodiment of a film connector according to the present invention.

FIG. 2 is a vertical sectional side view of the above.

FIG. 3 is a development view of a sheet forming the film connector of the above.

FIG. 4 is a front view showing a usage state of the above.

FIG. 5 is a perspective view showing a second embodiment of the film connector.

FIG. 6 is a perspective view showing a third embodiment of the film connector.

FIG. 7 is a front view showing a conventional example of film connection.

FIG. 8: Front view of film

[Explanation of reference numerals] 1 connecting piece 2 bulging portion 3 leader positioning portion 4 film positioning portion 5 fold line 6 positioning piece 7 adhesive layer 8 fold line 9 film holding piece 10 adhesive layer 11 fold line 12 leader holding piece 13 adhesive Agent layer

Claims (4)

[Claims] 1. A bulging portion is provided on one surface of the connecting piece, a leader positioning portion is provided on one of both end portions of the bulging portion located in both end directions of the connecting piece, and a film positioning portion is formed on the other side. A film connector in which the film positioning portion is inclined with respect to the leader positioning portion at an inclination angle substantially equal to the inclination angle of the inclined edge of the film tip, and an adhesive layer is provided on both ends of one side of the connecting piece. 2. The film connecting tool according to claim 1, wherein a locating piece having a bulge portion continuously connected to a side edge of the connecting piece via a fold line is bent on the connecting piece and fixed to the connecting piece. A film connector consisting of. 3. The film connector according to claim 1 or 2, wherein a film holding piece is continuously provided on a side edge of an end portion of the connecting piece to which the film is adhered, via a fold line. A film connector with an adhesive layer on the film holding surface. 4. The film connector according to claim 2 or 3, wherein a leader holding piece is continuously provided to one end of the positioning piece, which is a leader positioning portion, through a fold line, and the leader holding surface of the leader holding piece. A film connector provided with an adhesive layer.