JPH0372350A - Film cutting device for developing device - Google Patents

Abstract

PURPOSE:To prevent a film from deviating even when applied with no tension and to securely cut the film by putting an operation part in operation and cutting the film while the intermediate part of the film is supported by a support means. CONSTITUTION:If the film 18 jams halfway in its conveyance, the power source of the developing device 12 is turned off and the conveyance of the film is stopped. When the film 18 is cut, a pressure part 52 is pressed down against the energizing force of a compressing coil spring 44 and thus a reception part 46 and the lower end part of a lever base part 50 are made to abut on the film 18 so as to remove the jamming in this state. Then a cutting blade 24 which is rotated is inserted into an insertion part 25 to cut the film. In this case, the film 18 is supported by the reception part 46 and the lower end part of the lever base part 50. Consequently, a shear angle can be set equivalently to a cutting angle unless the film is tensed because the power source is OFF, and the film can securely be cut.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a film cutting device for a developing device for cutting a film developed in the developing device.

[Prior Art] Exposed films to be processed in a developing device are pulled out from the cartridge and sequentially sent into processing tanks in the developing device to be processed.

After all of the films that have been sequentially transported into the processing tank and processed are pulled out of the cartridge, the films are cut with a cutter.

When the film is cut, the rear end of the film is supported by the sprawl in the cartridge and is pulled in the transport direction by the drive of the transport roller, applying tension to the film. The film is cut under tension.

By the way, the film that has been pulled out from the cartridge becomes jammed while being conveyed to each processing tank, resulting in what is called a film jam within the processing tank. In this case, the film is once cut in the middle to restore the jammed film to its normal state and enable normal conveyance.

[Problems to be Solved by the Invention] However, in a film jam state, the film transport motor is stopped in order to turn off the power to the developing device. Therefore, no tension is applied to the film,
When attempting to cut the film in this state, the film escaped and could not be cut.

This is because if the film escapes during cutting, the shear angle between the cutting blade that cuts the film and the film differs from the angle at which the film can be cut.

The present invention takes the above facts into account, and even when no tension is applied to the film, the shear angle between the film and the cutting blade can be set to an angle that allows cutting when cutting the film.
It is an object of the present invention to provide a film cutting device for a developing device that can reliably cut a film.

[Means for Solving the Problems] In order to achieve the above object, the present invention provides a cutting blade that is rotatably supported and manually rotated to cut the film from the side in the width direction, and a cutting blade that cuts the film from the side in the width direction. a support means that supports the front and rear of the film cutting section that is cut by the cutting blade, and is formed with an insertion section that faces the surface of the film and into which the cutting blade that cuts the film is inserted along the width direction of the film; It is characterized by having

[Operation] According to the present invention having the above configuration, the cutting blade is manually rotated while the front and rear of the film cutting section are supported by the supporting means. The rotatably operated cutting blade cuts the film from the widthwise side of the film and is inserted into the insertion portion of the support means.

When cutting the film with the cutting blade, the front and back of the film cutting position are supported by the supporting means, so the shear angle (shear angle) is maintained at an angle that allows cutting, and the film is reliably cut.

[Example] FIGS. 1 to 3 show an example of a film cutting device 10 for a developing device according to the present invention.

Figure 1 shows the film cutting device 12 seen from the front of the developing device.
FIG. 2 shows the film cutting device 12 viewed from the side.

As shown in FIG. 2, the film loading section 14 of the developing device 12 is provided with two cartridge support sections 16. Two films 18, each of which has a leading end connected to a league (not shown), are housed in cartridges 21 and loaded into these cartridge supports 16.

As shown in FIG. 2, a conveyance roller 20 for conveying the league and film 18 and two rollers 22 disposed above the conveyance roller 20 are arranged at the back of the loading section 14. A film cutting device 10 is arranged between these transport rollers 20, 22 and the film loading section 14.

In the film cutting device 1o, a pair of cutting blades 24 are arranged on both sides of the film in the width direction between the film loading section 14 and the transport rollers 20 and 22, and are rotatably supported by a pin 28 on a frame (not shown). has been done. These cutting blades 24 are bent upward from the support of the pin 28,
This is an operation section 3o. The cutting blade 24 is rotated by the operator operating the operating portion 3o. A blade portion 32 is formed on the upper side bent from the pin 28 in a direction in which they touch each other.

Therefore, the cutting blade 24 located on the right side of the paper in FIG. 1 is cut clockwise in FIG. Rotate in the direction.

In addition, in the case of the cutting blade 24 on the left side of the paper in FIG.
By rotating the blade part 32 in the counterclockwise direction (in the six directions of arrows shown) around the pin 28, the blade part 32 is rotated around the pin 28 in the first direction.
Rotate counterclockwise.

A guide 34 is arranged on the conveying roller 20.22 side of the cutting blade 24. As shown in FIG. 3, this guide 34 is formed long along the width direction of the film 18, and bearing portions 36 are formed on both sides. These bearing portions 36 are formed with slide shaft holes 38 that extend vertically through the shaft bearings 36 . A guide rod 42 erected on the frame 40 on the conveyance roller 20.22 side is inserted into the slide shaft hole 38. A compression coil spring 44 is arranged on the guide rod 42 between the frame 40 and the bearing part 36.

Further, the guide 34 has a receiving portion 46 formed at a longitudinally intermediate portion thereof and protruding from the base portion 34A. This receiver portion 46 comes into contact with the film 18 and supports the film 18. Furthermore, a lever support part 48 is formed in the middle part of the receiver part 46. An intermediate portion of a lever 50 is attached to this lever support portion 48 .

As shown in FIG. 3, the lever 50 has a substantially U-shape and is arranged to open downward.

A lever base 50A is provided at the longitudinally intermediate portion of this lever 50.
A press B52 is formed by being bent at a substantially right angle.

Further, the lower end of the lever base 50A is used for contacting the film 18.

Therefore, when the operator presses the pressing part 52 of the lever 50 downward against the biasing force of the compression coil spring 44, the guide 34 moves downward, and the receiver 40 moves downward.
6 and the base 50A come into contact with the front and rear of the cut portion of the film 18.

Further, between the guide base 50A and the base 34A of the guide 34 is an insertion portion 25 into which the cutting blade 24 is inserted, and the cutting blade 24 that cuts the film 18 from the widthwise side is inserted.

Next, the operation of this embodiment will be explained.

The film 18 housed in the hepatrone 21 is loaded into the film loading section 14. The leading end of the film 18 is connected to the rear end of the league, and the league is connected to the conveying roller 20.
．． When the film 18 is conveyed by the cartridge 22, the film 18 is pulled out from inside the cartridge 21. The league is transported by transport racks within the processing tanks, and the film 18 is transported into each processing tank.

If the film 18 becomes jammed during this transport, the power to the developing device 10 is turned off and transport of the film 18 is stopped. In this state, in order to unblock the film 18, the middle portion of the film 18 pulled out from the cartridge 21 is once cut.

When cutting the film 18, the operator must use the suppression section 52.
is pressed downward against the biasing force of the compression coil spring 44, and the receiver part 46 and the lever base part 5 are pressed against the film 18.
Bring the lower end of 0A into contact.

In this state, if the cutting blade 24 is located on the right side of FIG. 1, it rotates in the direction of the arrow shown in the figure, and if it is located on the left side of FIG. 1, it rotates in the direction of the arrow B shown in the figure. Rotated cutting blade 24
is inserted into the insertion section 25.

This cuts the film.

When the film is cut, the film 18 is supported by the guide portion 46 and the lower end of the lever base 50A, so even if the power is turned off and no tension is applied to the film 18, the shear angle (shear angle) angle> can be made equal to the cutting angle, and the film can be cut reliably.

In this embodiment, a guide 34 and a lever 5 are used as supporting means.
0 is made into a separate body and the film is supported by these, but the present invention is not limited to this, and it is also possible to use one that can support the film and is formed with an insertion portion into which a cutting blade can be inserted. For example, it may be a plate in which a slit into which a cutting blade is inserted is formed.

[Effects of the Invention] As explained above, according to the present invention, the operating unit is operated with the intermediate portion of the film supported by the support means to cut the film with the cutting blade, so that the film can be cut without tension being applied. It has excellent effects in that it can sometimes prevent the film from escaping and can reliably cut the film.

[Brief explanation of drawings]

FIG. 1 is a front view showing an embodiment of a film cutting device for a developing device according to the present invention, FIG. 2 is a side view showing the film cutting device for a developing device, and FIG. 3 is a perspective view showing the film cutting device. . DESCRIPTION OF SYMBOLS 10... Film cutting device, 12... Developing device, 14... Film loading part, 18... Film, 24... Cutting blade, 25... Insertion part, 30... Operation part, 34... Guide, 46... Reception part, 50... Lever 50A... Lever base.

Claims (1)

[Claims] (1) A film cutting device for the developing device that is installed in the developing device and cuts the film, the cutting blade being rotatably supported and manually operated to cut the film from the side in the width direction; An insertion part is formed that supports the front and back of the film cutting part that is cut by the cutting blade when the film is cut by the cutting blade, faces the surface of the film, and into which the cutting blade that cuts the film along the width direction of the film is inserted. What is claimed is: 1. A film cutting device for a developing device, characterized in that the film cutting device comprises: