JPH04177251A - Method for taking out film from cartridge - Google Patents

Abstract

PURPOSE:To enable a film to be easily removed from a spool by taking out the film from a cartridge after passing a guide member through the guide hole of a cartridge body from the outside, and releasing an engagement pawl from the guide hole. CONSTITUTION:When a film 20 is removed from a spool 14, a guide member 56 is passed through the guide hole 50 of a cartridge body 10. At the same time, the film 20 is pushed toward the spool 14, thereby enabling the guide member 56 to be inserted in a through-hole in such a way to displace the film 20 from an engagement pawl 26. As a result, the film 20 is released from the end of the engagement pawl 26 against the pressing force of a guide projection section. In this state, the film 20 is pulled out through a takeout hole. The film 20, then, can be released from the spool 14 without being cut. According to this construction, the film 20 can be easily removed from the spool 14.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a cartridge containing a film and a method for taking out a photographed film from the cartridge.

[Prior art]

Film used in cameras currently on the market is wound and stored on a spool inside the main body of the cartridge, which serves as a film case.

This film is removed from the cartridge and subjected to development processing. At this time, the base of the film (end in the winding direction) is attached to the spool with tape or the like, so it cannot be removed from the spool. It is being removed.

Furthermore, the film (negative) that has been developed is cut into pieces of a predetermined number of frames, stored in so-called negative sheets, and returned to the orderer. For this reason, used cartridges are wasted, and the complicated work of cutting the film into sections of a predetermined number of frames and storing them in negative sheets is required.

On the other hand, a magnetic recording section is provided on the film used in cameras in recent years, and this magnetic recording section can record film information such as the type of film, order information such as the number of sheets to be developed, and user information such as the name of the person ordering the development. A film that does this has been proposed.

However, when a film with magnetic recording parts is cut into a predetermined number of frames and stored on a negative sheet as in the past, by cutting the film into a predetermined number of frames, the magnetic recording parts on the film are is divided, and a series of magnetically recorded information is divided. For this reason, there may be a problem that it becomes difficult to read information by a magnetic recording reading device.

In order to improve these problems, a possible method is to use a cartridge after cutting the film or a specially prepared cartridge, wrap the developed film around this cartridge, and return the film to the person who ordered the development.

[Problem to be solved by the invention]

However, in the above conventional technology, the original cartridge must be discarded and a new cartridge must be prepared, resulting in wasted parts. Furthermore, it is very difficult to wind the developing bath film around the spool again.

The present invention has been made in consideration of the above-mentioned facts, and an object of the present invention is to provide a method for removing a film from a cartridge, which allows the film to be easily removed from the spool.

[Means to solve the problem]

The method for taking out a film from a cartridge according to the present invention is as follows:
A cartridge main body having an outlet for pulling out the film, a spool rotatably supported and having a slit-like through hole formed on the outer peripheral surface of the cartridge main body through which the film is inserted, and a spool formed in the through hole. A film taking-out method for taking out a film from a cartridge having a locking claw that can be engaged with a hole provided in the film, the method comprising: passing a guide member from the outside into a guide hole of the cartridge main body; The feature is that the engagement between the locking claw and the hole is released and the film is taken out from the cartridge.

[Effect]

According to the present invention, when removing the film from the spool, the guide member is passed through the guide hole of the cartridge main body from the outside. By simultaneously pushing the film toward the spool, the guide member is inserted into the through hole so as to remove the film engaged with the locking claw from the locking claw.

Therefore, the film resists the pressing force of the guide protrusion and separates from the tip of the locking claw. In this state, if the film is pulled from the outlet, it can be pulled off the spool without cutting the film. For this reason, it is also possible to store the film that has been developed into the same cartridge spool again.

〔Example〕

As shown in FIGS. 1 and 2, the cartridge 10 includes a generally cylindrical cartridge main body 12 constituting a case for storing photographic film, and is rotatably supported within this cartridge main body 12 and wraps the photographic film therein. It is composed of a spool 14 for use.

A substantially rectangular protrusion (light shielding part) 12A that is elongated along the axial direction is provided on the outer circumference of the cartridge main body 12, and an opening 16 is formed at the end of the light shielding part 12A. has been done. This opening 16 is located in the cartridge main body 12.
It has a rectangular shape with its longitudinal direction in the axial direction, and allows the film 20 to pass therethrough. Further, a light-shielding cloth 18 is adhered to the opening 16 to prevent light from entering the cartridge main body 12.
fills the gap between the film 20 and the opening 16 to prevent light from entering the cartridge main body 12.

As shown in FIGS. 3 and 4, a slit-shaped through hole 24 is formed in the columnar portion 14A formed at the axially intermediate portion of the spool 14. As shown in FIGS. The leading end of the film 20 is inserted into the through hole 24 and engaged with the spool 14.

That is, a pair of locking claws 26 are formed protruding from the inner peripheral surface of the through hole 24 of the spool 14 . The pair of locking claws 26 correspond to both ends of the film 20 in the width direction, and the film 20 is provided with a hole 28 into which the locking claws 26 can fit.

A guide protrusion 30 is formed on the inner circumferential surface opposite to the inner circumferential surface on which the pair of locking pawls 26 are formed.

The guide protrusion 30 is provided corresponding to the center portion of the film 20 in the width direction. Therefore, when the film 20 is inserted into the through hole 24, it is guided by the guide protrusion 30 and deflects in the thickness direction (in the direction of the locking claw 26). Therefore, the hole 28 of the film 20 enters the locking pawl 26 and the film 20 is locked to the spool 14. In this state, by rotating the spool 14 in the winding direction,
The film 20 is wound around a spool in layers.

The cartridge main body 12 is provided with a rectangular hole 32 in a part of its outer periphery (a part extending in the diameter direction with respect to the telescope part 12A). This rectangular hole 32 serves as an insertion hole into which a guide member 56, which will be described later, is inserted. Note that this rectangular hole 32 is closed with a seal 36 and is normally shielded from light.

When photography is completed, the cartridge 10 is loaded into the cartridge case 38, and the film 20 is pulled out and developed. Hereinafter, the patrone case 38 to be patrolled is composed of a base portion 40 and a lid body 42. The base portion 40 and the lid body 42 are connected by a hinge 44, and the lid body 42 is connected to the base portion 40 by a hinge 44.
can be opened and closed.

The base portion 40 has an arc-shaped recess 46 on which the cartridge 10 is placed. When placing the cartridge 10, the lid 42 is opened, and with the cartridge 10 placed in the recess 46, the lid 42 is closed. The lid 42 and the base portion 40 sandwich the light shielding portion 12A of the cartridge main body 12, so that the cartridge 10 is held.

A drive shaft (not shown) protrudes from the side opposite to the opening side of the recess 46 of the cartridge case 38, and this drive shaft engages with a pawl formed on the end surface of the spool 14. Therefore, due to the rotation of the drive shaft, the spool 1
2 is rotated.

A diagonal rectangular groove 48 is formed at one corner of the bottom of the base portion 40 . A rectangular hole 50 smaller than the rectangular groove 48 is formed in the bottom surface of the rectangular groove 48 and penetrates to the inner space formed by the base portion 40 and the lid 42 . A main body casing 52 of an air cylinder 51 is fitted into the rectangular groove 48 . Therefore, the rond portion 54 of the air cylinder 51 is inserted into the rectangular hole 50. A guide member 56 is integrally formed at the tip of the rond portion 54.

As shown in FIG. 6, the guide member 5G has claws 58 protruding from the tips of both ends in the width direction. Claw 5
8, the wall thickness gradually decreases toward the tip.
It has a so-called tapered shape.

Here, with the entire film 20 pulled out from the cartridge 10 placed in the recess 46 (the hole 20 of the film 20
is engaged with the locking pawl 26), when the rond portion 54 begins to extend due to the operation of the cylinder 52, the guide member 5
6 abuts against the cartridge main body 12 through the rectangular hole 50, and is inserted into the cartridge main body 12 through the seal 36. Claw 5 at the tip of the guide member 34 inserted into the cartridge main body 12
8 moves so as to come into contact with a locking pawl 26 formed on the spool 12, and at the same time pushes the film 20 toward the spool. With the movement of the hole 28, the hole 28 is pushed out from the locking claw 26.

Therefore, the film 20 is removed from the spool 14. If the film 20 is pulled out from the light shielding part 12A in this state, the entire film 20 can be separated from the cartridge 10.

The operation of this embodiment will be explained below.

When taking out the photographed film 20 from the cartridge 10, open the lid 42 of the cartridge case 38 and remove the film 20 from the recess 4.
6 placed on the hepatrone 10, and the lid body 42 is closed.

As a result, the telescope section 12A of the cartridge 10 is held between the lid body 42 and the base section 40.

Next, when the film 20 coming out from the light shielding part 12A is pulled out by the driving force of a driving means (not shown), the spool 14
The film 20 that has been wound up in layers is sequentially drawn out, and when the film 20 is fully drawn out, the holes 28 of the film 20 are engaged with the locking claws 26, so that the film 20 is prevented from being drawn out.

Next, when the cylinder 51 is actuated, the rond part 54 extends, and the guide member 56 integrally formed at the tip of the rond part 54 breaks through the seal 36 affixed to the cassette main body 12 and enters the cassette main body 12. Get into it.

As a result, the claw 58 at the tip of the guide member 56 is inserted into the through hole 24 of the spool 14.

By pushing the film 20 in the spool direction at the same time as this insertion movement, the film 20 is moved so that the claw 28 is connected to the locking claw 2.
6, and when the guide member 56 is in its most protruded state, the engagement between the locking pawl 26 and the hole 28 is released. When this state is maintained and the film 20 is pulled out from the light shielding part 12A, the film 20 is pulled away from the spool 14, and the entire film 20 can be taken out from the cartridge 10.

When the developed film 20 is to be stored again in the same cartridge 10, it is inserted from the light shielding part 12A with the end on the side where the hole 28 is provided first, and then inserted into the through hole 24 of the spool 14. Insert it into. The inserted film 20 is bent in the thickness direction by the guide protrusion 30 and the hole 2
8 enters the locking claw 26. Here, by rotating the spool 14, the film 20 is sequentially transferred to the spool 14.
It can be wound up into layers and housed in the cartridge main body 12.

In this way, in this embodiment, the film 20 can be separated from the cartridge 10 without being cut, and the developed film 20 can be placed in the same cartridge 10 again, so that the film 20 can be separated in the longitudinal direction. When a magnetic recording layer is provided and a series of information such as development conditions is stored, this series of information can be stored without being divided.

〔Effect of the invention〕

As explained above, the method of removing film from a cartridge according to the present invention has an excellent effect in that it is easy to separate the film from the spool.

[Brief explanation of drawings]

FIG. 1 is a perspective view of the cartridge according to this embodiment, FIG. 2 is a sectional view taken along the line ■-■ in FIG. 1, and FIG. 3 is a perspective view of the spool.
4 is a cross-sectional view taken along the line -IV in FIG. 3, FIG. 5 is a cross-sectional view showing the internal structure of the cartridge case, and FIG. 6 is a perspective view showing the correspondence between the guide member and the locking pawl. DESCRIPTION OF SYMBOLS 10... Patrone, 14... Subunope 20... Film, 24... Through hole, 26... Locking claw, 28... Hole, 38... Patrone case, 56... Guide member, 58...claw.

Claims (1)

[Claims] (1) A cartridge main body having an outlet for pulling out the film, a spool rotatably supported with a slit-like through hole formed on the outer peripheral surface of the cartridge main body through which the film is inserted, and a spool rotatably supported within the through hole. A method for taking out a film from a cartridge having a locking claw formed in the film and capable of engaging with a hole provided in the film, the method comprising passing a guide member from the outside into the guide hole of the cartridge main body. A method for taking out a film from a cartridge, comprising: releasing the engagement between the locking pawl and the hole, and taking out the film from the cartridge.