JPH06301186A - Connecting structure for reader and film - Google Patents

Abstract

PURPOSE:To facilitate the connection and disconnection of a film to a reader. CONSTITUTION:A pair of center notches 11 extended in the reader shift direction are formed on a reader 1, and a front notch 13 and a rear notch 12 are formed in the outside direction from both ends of each center notch 11. A hook 15 tilted in the reader shift direction is provided between the front notch 13 and the rear notch 12, and coupling holes 21 couplable with the hooks 15 are formed at the end section in the longitudinal direction of a film 20. The end section of the film 20 is inserted into the rear notch 12, the film 20 is moved to the position kept in touch with the front notch 13, then the film 20 is pulled back to couple the coupling holes 21 with the hooks 15.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a connecting structure for a leader and a film.

[0002]

2. Description of the Related Art Generally, when developing a film by a leader transport type automatic film developing machine, as shown in FIG. 6, the leading end portion of the film F pulled out from the cartridge P is connected to the leader L, and the leader L is connected. And the film F is transferred to the film developing section.

Here, the leader L is made of a synthetic resin sheet and has flexibility, and holes a which can be engaged with the feed sprockets provided in the developing portion are equidistantly formed in the central portion in the width direction thereof. It is formed on.

When the film F is removed from the reader L during the development process of the film F, the film L is stopped in the processing solution and the development process cannot be performed, and it is very troublesome to take out the stopped film F. There is a risk that the film will be exposed to light when taken out.

Therefore, the film F needs to be firmly connected to the reader L.

Therefore, conventionally, as shown in FIG. 6, the leader L and the film F are connected to each other by attaching the splice tape T.

[0007]

By the way, the splicing tape T is connected by using the splicing tape T in a state in which oil and dust at the tape adhering position are removed.
Since it is necessary to attach, it is troublesome. Further, since it is necessary to use the splice tape T having a strong adhesive force in order to prevent the film F from coming off and to improve the transportability,
There is an inconvenience that it is extremely difficult to peel off the splice tape T after the film development processing.

Further, the film F needs to be accurately connected to a predetermined position with respect to the leader L, a special work table is required for the connection, and the splicing tape T is also used.
Is costly because it cannot be reused.

The present invention solves the above-mentioned conventional inconveniences,
It is a technical object to facilitate the connection and release of the connection between the leader and the film, and to enable the film to be accurately connected to a predetermined position with respect to the leader without using a special workbench.

[0010]

In order to solve the above-mentioned problems, in the present invention, in a connecting structure of a leader and a film conveyed by the leading of the leader, an engaging hole is formed in the film and the leader is attached to the film. A hook that can be engaged with the engaging hole of the film and a notch into which the film can be inserted are adopted.

Here, the cuts form a pair of linear center cuts extending in the leader transport direction, and a rear cut for inserting a film is provided from the rear end of each center cut in the leader transport direction toward the outside. Further, the front notch for regulating the insertion amount of the film may be formed from the tip of each central notch in the leader transport direction toward the outside. In this case, the hook is provided between the front notch and the rear notch, and the hook is inclined toward the film insertion direction.

[0012]

According to the above construction, the end of the film is inserted from the surface of the leader into the rear notch, and the film is moved along the upper surface of the lower guide provided between the pair of notches so that the film front end When the film is pushed back to the position where it abuts the upper cut and then the film is pulled back, the hook engages with the engaging hole at the position where the engaging hole faces the hook, and the film can be connected to the leader.

When the film is disconnected, the film is pushed in to release the engagement between the engaging hole and the hook,
The leader and the film are relatively inclined on a plane including the leader, and the film is pulled out while the hook and the engaging hole are displaced in the width direction of the film.

[0014]

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

As shown in FIGS. 1 to 3, a flat rectangular leader 1 is made of a synthetic resin sheet and has flexibility, and feed holes 2 are formed at equal intervals in the center portion in the width direction. Has been formed.

At the rear end of the leader 1 in the transport direction, a pair of film connecting portions 10 are provided at left and right symmetrical positions.

The film connecting portion 10 forms a pair of linear center cuts 11 extending in the carrying direction of the reader 1,
A rear notch 12 for inserting a film is provided from the rear end of each central cut 11 in the leader transport direction toward the outside, and a front notch 13 is formed from the front end of the center notch 11 in the leader transport direction toward the outside. There is. Further, a hook 15 is provided on each of the pair of film pressing pieces 14 formed between the front notch 13 and the rear notch 12.

Here, the rear notch 12 may have a linear shape extending in a direction perpendicular to the center notch 11, but it is a long hole for facilitating the insertion of the end of the film 20 and is oblique. It is better to incline toward the outside. Dimension L between the outer ends of the rear notch 12
₁ is slightly larger than the width W of the film 20.

The front notch 13 controls the amount of insertion of the film 20, and the dimension L ₂ between the outer ends of the pair of front notches 13 is smaller than the width W of the film 20. The front notch 13 may be oriented obliquely outward as shown in FIG. 3, or may be oriented orthogonally to the central notch 11 as shown in FIG. .

The hook 15 is bent toward the lower surface of the leader 1 and is inclined toward the carrying direction of the leader 1.
The hook 15 may be provided along the central cut 11, or may be provided at a required distance from the central cut 11.

An engaging hole 21 into which the hook 15 can be engaged is provided at the end of the film 20 in the lengthwise direction. Both ends of the edge of the film 20 are cut obliquely so as to be easily inserted into the rear notch 12.

Now, as shown in FIG. 4 (a), the ends of the film 20 are inserted into the pair of rear notches 12, and the film 20 is placed on the upper surface of the lower guide 16 provided between the pair of central notches 11. When moved along, the film 20
Both sides of the film move along the lower surface of the film pressing piece 14,
When the leading edge of the film 20 passes below the hook 15, the hook 15 is deformed upward.

The film 20 is, as shown in FIG.
The amount of insertion is regulated by the contact of the front notch 13 with the outer end, and when the film 20 is pulled back from that state, the hook 1 is placed at the position where the engaging hole 21 faces the tip of the hook 15.
5 is deformed downward, the hook 15 is engaged with the engaging hole 21, and the film 20 is brought into a connected state.

When releasing the connection of the film 20, the film 20 is pushed to a position where it abuts against the outer end of the front notch 13 and the engagement between the hook 15 and the engagement hole 21 is released as shown in FIG. Then, in that state, the reader 1 and the film 20 are relatively inclined on the plane including the reader 1,
As shown in (c), the film 20 is pulled out while the hook 15 and the engaging hole 21 are displaced in the width direction of the film 20.

[0025]

As described above, in the film connecting structure according to the present invention, the end of the film is inserted into the rear notch, and the film is pulled back after being inserted to the position where the insertion amount is regulated by the front notch. By doing so, the hook can be engaged with the engagement hole to bring the film into the connected state, and the film in the connected state can be pushed in to incline the film and the leader relatively on the plane including the leader. After that, since the connection can be released by pulling out the film, the connection and release of the film is very easy, the connection work can be performed efficiently in a short time, and the film can be placed at the predetermined position of the leader. It can be installed with extremely high accuracy.

Further, since the connection is made by inserting, splice tape and a special work table can be eliminated,
It is advantageous for cost reduction.

Further, since the leader has a simple structure in which a notch and a hook are formed, the cost can be reduced, and when the other member is attached to the leader for film connection, the leader and the other member are attached. In the meantime, a problem that the developing solution is accumulated occurs, but such a problem does not occur.

According to a third aspect of the present invention, the rear notch is formed as an elongated hole, and as described in the fourth aspect, the rear notch is inclined in the direction opposite to the film insertion direction, whereby the rear notch is formed. On the other hand, the film end can be easily inserted.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of a connecting structure according to the present invention.

FIG. 2 is a sectional view taken along line II-II in FIG.

FIG. 3 is an exploded perspective view of the above.

4 (a), (b), and (c) are perspective views showing a state in which the films are being connected and disconnected.

FIG. 5 is a perspective view showing another example of the film connecting portion.

FIG. 6 is a perspective view showing a conventional film connection structure.

[Explanation of symbols]

 1 Leader 11 Center notch 12 Rear notch 13 Front notch 15 Hook 20 Film 21 Engagement hole

Claims (4)

[Claims] 1. In a connection structure of a leader and a film conveyed by preceding the leader, an engaging hole is formed in the film, and a hook capable of engaging with the engaging hole of the film and the film can be inserted into the leader. The leader and film connection structure is characterized by forming a large notch. 2. The leader-film coupling structure according to claim 1, wherein the notches are a pair of linear center notches extending in the leader conveying direction, and the center notches extend outward from the rear end of the leader conveying direction. It is composed of a rear notch for inserting the film, and a front notch for controlling the insertion amount of the film facing outward from the leading end of each center notch in the leader transport direction, and a hook is provided between the front notch and the rear notch. The leader-film connection structure is characterized in that it is inclined toward the film insertion direction. 3. The leader-film connection structure according to claim 2, wherein the rear notch is an elongated hole. 4. The leader-film connection structure according to claim 2 or 3, wherein the rear notch is inclined in a direction opposite to the film insertion direction.