JP3470251B2 - Film transport reader and connection method - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a leader, one end of which is fixed to a spool, for conveying a film, and a connecting method for connecting the leader and the spool.

[0002]

2. Description of the Related Art Conventionally, when an undeveloped film is developed by an automatic film developing machine by connecting the film to a film transporting leader, as shown in FIG. 5, the leading end of the film F pulled out from the cartridge 100. The unit is connected to a film transport leader 101 (hereinafter referred to as a leader), and the leader 101 precedes and transfers the film F to the developing unit of the automatic film developing machine. Generally, the leader 101 is formed in a sheet shape of a synthetic resin material, has flexibility, and engages with a sprocket-shaped feeding device provided in the developing section of the film automatic developing machine to convey it. , Holes 103 are formed at equal intervals along the transfer direction at the center in the width direction, and the holes 103 are sequentially transferred.

In the film automatic developing machine, a film guide for guiding the movement of the film F is provided in the developing section. When the film is removed from the film guide, the film is scratched. On the other hand, it needs to be fixed exactly in place.

Further, when developing the film F, the reader 1
When it is out of 01, the film F is stopped in the processing liquid in the automatic film developing machine, and it takes a lot of time to take it out, and there is a risk that the film F is exposed at the time of taking it out. Therefore, it is necessary to firmly connect the reader 101 and the film F to prevent the above-mentioned problems.

As a means for firmly connecting the leader 101 and the film F as described above, the connecting tape 102 having a strong adhesive force as shown in FIG. 7 is used for connection and fixing.

Further, as means for connecting undeveloped film without using the connecting tape 102, Japanese Patent Laid-Open No. 7-295189.
No. is disclosed.

[0007]

As described above, in order to attach the leader 101 and the film F to the correct positions, first, the leader 101 and the film F are placed on the aligning device, and the connecting tape 102 is used. Fix it. Thus, a special alignment device is required for connection work.
Further, if the connecting tape 102 is stuck or the like, it is extremely difficult to remove it. Further, since it is extremely troublesome to peel off the connection state between the leader 101 and the film F after the development processing, the connection tape 102 is cut, and a part of the connection tape 102 is adhesively fixed to the leader 101. It will be in a state of being. At the time of reuse, a person takes off the connecting tape 102 with his fingertip for a long time.

Therefore, Japanese Patent Laid-Open No. 7-295189 has been proposed as a method which does not use the connecting tape 102 as described above. However, this method also determines the position of connection when connecting the leader and the leading edge of the film. Special processing is required at the tip of the film, and complicated connection operation is required.

The present invention solves these drawbacks by
The purpose is to easily attach the film F to the reader 101 at an accurate position and to reuse the reader 101.

[0010]

In order to achieve the above object, the present invention provides a leader for conveying a film having one end fixed to a spool according to claim 1, wherein the film is developed by the leader. 3. A pair of elastic projecting locking pieces for fixing both ends of the spool are formed at a rear end position in the processing direction, wherein the pair of elastic projecting locking pieces are integrated with the reader. 5. In claim 3, the pair of elastic projecting locking pieces are formed to be bendable with respect to the reader body. In a method of connecting a leader for transporting a film fixed to a spool and the spool, in the method of connecting the spool, the film is placed at a pair of elastic projecting locking piece positions formed at a rear end position of the leader in the traveling direction. Both ends of the spool provided at the tip, Pushes against the elastic force of sexual projecting locking piece, it was to lock the two ends of the spool return force of the elastic protruding locking piece, it is achieved by.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows that a film F1 wound on a spool 207 from a pull-out port 403 of the film F1 is built in and held in a state where photography has been completed for the film F1 and the film has not been developed. The cartridge main body 400 formed and held in a cylindrical shape by metal fittings 401 and 402 is shown.

FIGS. 2A, 2B and 2C show a method of taking out the film F1 from the cartridge body 400 together with the spool 207 in order to develop the undeveloped film F1 in the cartridge body 400.

First, referring to FIG. 2A, the cartridge main body 400 is shown.
Are fixed by a fixing means (not shown). Next, FIG. 2 (b)
Then, from the fixed cartridge body 400 to the holding metal fitting 40
Remove 1,402 in the direction of the arrow. Next, in FIG. 2 (c),
The drawer 403 of the cartridge body 400 is pushed open, and the film F1 is taken out with one end fixed to the spool 207.

As for the method of taking out the film F1 as described above, the film F1 is taken out by using an automatic take-out device in a dark room, or the holding metal fitting 4 is used.
It may be performed manually using a tool for removing 01 and 402.

FIG. 3 is a plan view showing a leader 200 made of, for example, a polyethylene terephthalate (PET) material, to which a spool 207 provided at the tip of the film F1 is connected.

At the center position of the leader 200 in the traveling direction when the leader 200 enters the developing processing section 300 and advances, the leader 200 is moved.
A feed hole 206 for advancing the sheet is formed intermittently. Further, on both sides of the feeding hole 206, two notches 220 and 221 are formed at the rear end position 201 in the traveling direction. Each of the notches 220 and 221 is provided with a pair of elastic projecting locking pieces 202, 203, 204 and 205 each having a slightly sharp tip and an elastic body. Here, the leader 200 is a leader body for introducing and guiding the film F1 into the development processing section 300, and a pair of elastic protrusions at the rear end position 201 in the traveling direction formed integrally with the leader body. Shaped locking piece 20
2, 203, 204 and 205 are provided.

Both ends of the spool 207 are connected to the pair of elastic projecting locking pieces 202, 203, 20 as shown in the drawing.
4 and 205 respectively, and the leader 200 and the film F
1, F2 are connected, first, the leader 200 is inserted into the automatic development processing device 300, and the driving means in the automatic development processing device 300 engages the feed hole 206 so that the films F1 and F2 are fed from the leader 200 to the developing portion. Enter and develop.

In FIGS. 4A and 4B, the spool 20 is
The specific configuration and operation of the 7 and the pair of elastic projecting locking pieces 202 and 203 will be described.

A slit is formed in the spool 207, one end of the film F1 is fixed to the slit, and the spool holding portion 21 is provided at both end positions of the spool 207.
4, 215 are integrally formed, and the spool 20
Guide flanges 212, 213 for guiding the film F1 when it is wound are integrally formed on both sides of 7. Holding spools 208, 209 are formed in the spool holding portions 214, 215 of the spool 207 by the projections 210, 211.

As shown in FIG. 4A, the spool 207 constructed as described above is moved to the lower position of the pair of elastic projecting locking pieces 202 and 203 formed on the leader 200, and is indicated by an arrow. When it is lifted upward as shown in FIG.
3 bends in the lifting direction. When further raised, the elastic protrusion-like locking pieces 202 and 203 will move to the spool holding portion 21.
At the same time as returning to the original position after being disengaged from the end portions of 4, 215, the tip portions of the elastic projecting locking pieces 202, 203 are inserted and locked in the holding gaps 208, 209, and the projections 210, 21.
It is held at 1 as shown in FIG.

In this way, the spool 2 is attached to the leader 200.
The film F is surely connected together with 07.

FIG. 5 is a perspective view of FIGS. 3 and 4. The film F1 is provided with the elastic projecting locking piece 2 via the spool 207.
The film F2 is in a state of being locked by 02 and 203, and shows the state in which the spool 207 is lifted upward and the spool 207 is attached as shown in FIG. 2B.

FIG. 6 is a vertical cross-sectional side view showing a state in which the leader 200 and the tips of the elastic projection-like locking pieces 202, 203 are inserted and locked in holding gaps 208, 209 for holding the spool 207. As shown in the figure, the protrusions 211 are formed in a pair to form a holding gap 209, and the tip of the elastic protruding locking piece 203 is inserted and locked in the holding gap 209. Therefore, due to the elastic protrusion-like locking piece 203 and the holding gap 209, the spool 207 becomes elastic protrusion-like locking piece 203.
The rotation of the film in the winding direction is blocked around the center of the film, and while the film F1 is being moved by the leader 200, the spool 2
The film F1 does not wind around 07.

In the work of removing the spool 207 from the leader 200 after the development of the films F1 and F2 is completed and dried as described above, the spool 207 is pushed down in the direction of the arrow in FIG. The elastic projection-like locking pieces 202, 203, 204, 205 may be removed without resisting the resilience, and can be easily removed. And the reader 20
0 can be used again.

[0025]

As described above, according to the present invention, in claim 1, a pair of elastic projecting locking pieces for fixing both ends of the spool are formed at the rear end positions of the leader film in the developing processing direction. Therefore, it is possible to connect the films by a simple operation by using a spool that is conventionally fixed to the film and only slightly processing a part of a leader for conveying the film. After removing the spool from the leader,
The reader can be used any number of times and the development cost can be reduced.

In the second aspect, since the pair of elastic projecting locking pieces are formed integrally with the leader, the leader can be easily manufactured and can be smoothly transported during development. I can.

In the third aspect, since the pair of elastic projecting locking pieces are formed to be bendable with respect to the leader, the spool can be easily attached, and the spool can be automatically attached to the leader. It is also possible to attach to.

According to a fourth aspect of the present invention, both ends of the spool provided at the leading end portion of the film are pushed to the connecting position against the elastic force of the elastic protruding locking piece, and the elastic protruding locking is performed. Since both ends of the spool are locked by the restoring force of one piece,
The spool can be easily attached to and detached from the leader.

[Brief description of drawings]

FIG. 1 is a perspective view of a patrone that has been photographed and has an undeveloped film built therein.

FIG. 2 is an explanatory view showing an order of taking out films from the cartridge of FIG.

FIG. 3 is a plan view in which a spool and a film are connected to the leader of the present invention.

FIG. 4 is an explanatory view showing a state in which a spool is attached to the leader of the present invention.

FIG. 5 is a perspective view in which a spool and a film are connected to the leader of the present invention.

FIG. 6 is a side view showing a state in which a spool is attached to the leader of the present invention.

FIG. 7 is a perspective view in which a film is connected to a conventional reader.

[Explanation of symbols]

101,200 reader 206 feed hole 202, 203, 204, 205 Elastic protrusion locking piece 207 spool 220,221 notch F, F1, F2 film 400 Patrone body 403 Exit

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Claims (4)

(57) [Claims] 1. A leader for conveying a film, one end of which is fixed to a spool, wherein a pair of elastic members for fixing both ends of the spool to a rear end position of the leader in the developing processing direction of the film. A leader for film transport, characterized in that a protruding locking piece is formed. 2. The film transport leader according to claim 1, wherein the pair of elastic protrusion-like locking pieces are formed integrally with the leader. 3. The film transport leader according to claim 1, wherein the pair of elastic projecting locking pieces are formed to be bendable with respect to the leader body. 4. A leader for transporting a film, one end of which is fixed to a spool, and a pair of elastic protrusions formed at a rear end position of the leader in the advancing direction of the leader in the method of connecting the spool. At the stop piece position, both ends of the spool provided at the leading end of the film are pushed against the elastic force of the elastic protruding locking piece, and the restoring force of the elastic protruding locking piece causes the spool to move. A connecting method characterized in that both ends are locked.