JPH0611800A - Method and device for assembling roll film housing cartridge - Google Patents

Abstract

PURPOSE:To rapidly and safely wind roll film by performing the escape operation of a flange so that the part of 'the film in a wound state does not come in contact with the flange. CONSTITUTION:In the case of winding the film, the escape operation of the flanges 16 and 16 is performed by a pair of flange guides 31 and 31 positioned on a film 20 side. Namely, since the flange guides 31 and 31 are constituted so that a distance between the tips of the guides 31 and 31 may be a little smaller than the top of the rising part 17 of the flanges 16 and 16, and so that they may be tapered succeeding from the tip, the flanges 16 and 16 are opened to the outside just by pushing the guide 31 in parallel in the direction of a spool shaft 13. In such a state, the base end of the film 20 is fixed in a locking part formed on the spool shaft 13 or the base end of the film 20 is connected to an adhesive tape, etc., attached to the spool shaft 13, and a driving shaft 32 connected to a long hub 14 or a short hub is rotated to wind the film 20.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a so-called 35 mm for photography.
The present invention relates to an assembling method and apparatus for a cartridge (patrone) that stores a roll film such as a film.

[0002]

BACKGROUND OF THE INVENTION A so-called 35 mm roll film uses a metallic container called a patrone, and a portion which has been photographed is sequentially wound on a winding shaft on the camera side and is rewound into the patrone when the photographing is completed. Is.

[0003] In what form the roll film is stored in a cartridge or a cartridge (herein referred to as a cartridge), there are problems in each of the manufacturing stage, the utilization stage and the processing stage such as development.

At the manufacturing stage, the manufacturing efficiency mainly becomes a problem. The main problem is that the work is performed in a dark room due to the nature of the film, and technically, the base end of the film is fixed to the spool shaft, the film is wound, or the cartridge is assembled. It's a problem.

At the stage of use, the simplicity and reliability of loading into the camera is the most important issue, but in the conventional cartridge, the tip of the film is partially exposed as a leader and the end of this leader is exposed. The camera is automatically wound around the take-up shaft of the camera or manually set on the take-up shaft, and then the camera is automatically taken up. It was necessary to do so, and it lacked simplicity and certainty.

Finally, at the stage of processing such as development, there is a problem of taking out the film from the cartridge. When rewinding the film into the cartridge after the shooting is completed, if it is rewound in the cartridge up to the leader part, it is necessary to use a dedicated jig or destroy the cartridge and take out the film, which is very complicated. Work efficiency is significantly reduced.

In order to solve these problems, as in US Pat. No. 5,046,682, the leader portion is wound in the cartridge, and the leader portion is sent out from the slit opening by rotating the spool shaft. Cartridges have been proposed.

[0008]

In the conventional so-called 35 mm roll film, rigid flanges are integrally formed near both ends of the spool shaft, and the flange only regulates the ends of the film. The flange did not get in the way when the film was rolled in.

On the other hand, in the cartridge in which the open end of the film (the leader in the conventional film) is wound in the cartridge, the film end can be pushed out from the slit of the cartridge by the reverse rotation of the spool shaft. In order to prevent the hoop of the film wound on the spool shaft from expanding and coming into pressure contact with the inner wall of the cartridge, a flexible flange with an annular rising portion that presses both ends of the film is used. It is rotatably attached to the shaft,
The annular rising portion of the flange becomes an obstacle, and the conventional film winding method cannot be applied as it is. Further, if the film is forcibly rolled up, the flange or the film may be damaged.

Further, in order to improve the production efficiency, it is required to increase the winding speed. On the other hand, the above-mentioned structure of the flange remarkably lowers the production efficiency and needs to be improved. Further, the structure for increasing the film winding speed is required to be a safe and reliable structure that does not damage the flange or the film, and has less operational troubles. .

The present invention has been completed in view of the above, and enables a roll film to be quickly and safely wound in a cartridge structure of a type in which a special flange is attached to a spool shaft. It is an object of the present invention to provide an improved assembling method and an assembling apparatus.

[0012]

In the method for assembling a roll film storage cartridge according to the present invention, a pair of flanges rotatably attached to a spool shaft prevents a loop of a film wound therein from being expanded, and reversely rotates the spool shaft. In the method of assembling a film storage cartridge having a structure in which the stored film is pushed out from the slit of the cartridge by rotation, when winding the roll film around the spool shaft, at least the portion of the film in the wound state does not contact the flange. To be in a state
It is characterized by performing the relief operation of the flange.
An apparatus for assembling a roll film storage cartridge according to the present invention includes means for fixing at least one part of a cartridge divided into at least an upper part and a lower part at a film winding position, and an assembly line separately prepared. Supply means for supplying the spool shaft unit to the above one part, shaft holding means for preventing the spool shaft from moving upward, drive means for rotating the spool shaft, and rotation for the spool shaft. It is freely attached and has a flange release means for releasing a part of a flexible flange having an annular rising portion that presses the end of the film from the film passing position, a means for supplying the other one of the parts, and a top and bottom And a means for joining and fixing the parts together, and the spout is passed through the flange part that is released by the flange guide. The film is wound around the reel shaft, the flange guide has the function of a touch roller for film winding, or the flange guide also has the function of a film guide for guiding the film to the spool shaft. , Respectively.

[0013]

DETAILED DESCRIPTION OF THE INVENTION The present invention will now be described in more detail with reference to the accompanying drawings. FIG. 1 shows a cartridge 10 assembled by the method of the present invention. The cartridge 10 is made of synthetic resin, and is composed of an upper part 11 and a lower part 12 which are divided into two parts. The joint part of both parts is welded by a method such as ultrasonic vibration to be integrated in a light-shielded state. Inside the cartridge 10, a spool film 13, a long hub 14, a short hub 15, a winding structure formed by a pair of flanges 16 and 16, and a roll film 20 are housed.

In the conventional 35 mm roll film, the fixed length of the open end of the film 20 is pulled out of the cartridge 10 as a leader, but in the cartridge assembled according to the present invention, the entire film 20 or substantially the film 20 is omitted. The entire cartridge is stored in the cartridge 10. Therefore, a mechanism for pulling the open end of the film 20 out of the cartridge 10 is required on the camera side or in the process of taking out the film prior to processing such as development.

In the conventional 35 mm roll film stored in a cartridge, if the film is wound up into the cartridge up to the leader portion, the loop of the wound film spreads elastically and there is resistance to contact the inner wall of the cartridge, and the spool shaft The force due to the rotational movement does not work well as the pushing force of the film, and the presence of a light blocking member such as a velvet arranged at the film outlet of the cartridge 10 causes the spool shaft to simply rotate in the reverse direction.
The free end of the film could not be pulled out of the patrone.

On the other hand, the cartridge 1 according to the present invention
At 0, pulling the film 20 out of the cartridge 10 only requires reverse rotation of the spool shaft 13. The configuration for that purpose will be described below.

A flange 16 formed of a flexible thin film or the like is rotatable with respect to the spool shaft 13 in order to reduce the frictional resistance caused by the loop of the film 20 that has been rolled up and coming into contact with the inner wall of the cartridge 10. The rising portion 17 formed on the edge portion of the flange 16 restricts the loop of the film 20 that has been rolled up by pressing both ends of the film 20. Since the rising portion 17 of the flange 16 surrounds the side edge of the film 20, the rising portion 17 of the flange 16 that contacts the film 20 is deformed in the process of pulling the film 20 out of the cartridge 10.

Now, a method of winding the film 20 into the cartridge 10 and assembling it as a film storage cartridge will be described with reference to FIGS. First, the first
In the assembly line, the spool shaft 13, the long hub 14, the short hub 15 and the flanges 16 and 16 are assembled as a spool shaft unit by an automatic assembling device in a bright room. The assembled spool shaft unit is supplied to the film winding line under the dark room or the light shielding structure.

At the film winding position in the film winding line, the lower part 12 of the cartridge 10 supplied by a separate supply line is supplied in advance with the release portion facing upward, and a fixed position on a base (not shown). First, the spool shaft unit is automatically incorporated into the lower part 12, and the upper surfaces of the long hub 14 and the short hub 15 move from the axial direction of the spool shaft 13 to the upper direction. Axial holding means 30.3
By 0, the spool shaft 13 is regulated in a rotatable state. In the above state, the film can be wound in the conventional spool shaft structure. However, since the cartridge 16 to which the present invention is directed has the flanges 16 and 16, the film can be wound up in this state. Instead of performing the above, the relief operation of the flanges 16 and 16 is performed. This escape operation is performed by the pair of flange guides 31, 31 located on the film 20 side. At the same time, the flange guides 31, 31 also function as a film guide for guiding the film 20 to the spool shaft 13. The flange guides 31 and 31 are configured such that the distance between the tip ends thereof is slightly narrower than the top of the rising portion 17 of the flanges 16 and 16, and the taper shape is formed following the tip ends thereof, so that they are parallel to the direction of the spool shaft 13. Only by pushing, the flanges 16 and 16 are pushed outward as shown in FIG. In this state, the base end of the film 20 is fixed to the locking portion formed on the spool shaft 13, or
Film 2 on the adhesive tape attached to the spool shaft 13
When the drive shaft 32 connected to the long hub 14 to the short hub 15 is rotated by connecting the base end of 0, the spool shaft 13 rotates and the film 20 is wound. At the time of this winding, the flanges 16 and 16 are configured to be rotatable with respect to the spool shaft 13, so that the portion of the flange 16 that comes into contact with the flange guide 31 is deformed mainly in its rising portion 17. Maintained, film 2
0 is free to pass.

In order to make the film 20 smoothly pass through the inner wall of the flange guide 31, it is also preferable to apply or knead silicon or the like to reduce friction. Further, the flange guides 31 and 31 are attached to a base on which a guide roller, a conveying roller, a cutting device, etc. of a film winding device are mounted in a structure for linear reciprocating motion via a guide rail or the like, and actuated by a drive source such as a solenoid. Let

Further, the flange guides 31, 31 are not limited to those provided with the upper and lower guide portions for restricting the vertical movement of the film 20, as shown in the figure, and the flanges 16, 16.
It may be configured by a plate material or a bar material that only deforms. The control of the completion of winding the film 20 is performed by detecting the rotation amount of the spool shaft 13.

In the film accommodating cartridge assembled by the above assembling method, there are a mode in which the open end of the film 20 is entirely wound in the cartridge 10 and a mode in which a slight amount is exposed. In addition, film 2
In a mode in which all of the film is wound up to the open end of 0, it is difficult for the open end of the film 20 to come into contact with the rising portion 17 of the flange 16 and to escape when the film 20 is pulled out. It is preferable to cut out and form a taper shape. In addition, in such an aspect, the film winding operation is temporarily stopped before the film 20 is completely wound,
To cut. Needless to say, the film 20 may be cut while the film 20 is running.

When the film 20 is completely wound and cut, the flange guide 31 is pulled out to restore the flanges 16 and 16 to the original shape, and the drive shaft 32.
To release the engagement with the long hub 14 or the short hub 15, and further to allow the shaft pressing members 30 and 30 to escape, and then operate the supply means of the upper part 11 of the cartridge 10 to lower the lower part. The upper part 11 is lowered toward 12, the joining parts of the two are united, the supply means of the upper part 12 is released, and then the ultrasonic welding horn 33 is connected to the upper surface of the upper part 12 to connect the upper part 11 and the upper part 11. The lower part 12 is fixed.

When the above work is completed, the film 20
Is stored in the cartridge 10 in a light-shielded state, and the film storage cartridge is carried out under the bright room.

At the winding position of the film 20,
Upper part 1 to lower part 12 of cartridge 10
The present invention also includes a mode in which the temporary fixing of No. 1 is performed and the ultrasonic welding horn 33 fixes the upper part 11 and the lower part 12 in a cartridge fixing line arranged at another position under the bright room.

The lower part 12 and the upper part 11 can be fixed not only by the ultrasonic welding horn 33, but also by using an adhesive or by other methods. Examples of a method for temporarily fixing the upper part 11 to the lower part 12 include a method of preparing an engaging portion having a concave-convex structure at a joint portion between them, a method of using an adhesive, a method of using an adhesive tape or a pinch, and the like. However, the present invention is not limited to these. Furthermore, it goes without saying that the spool part may be incorporated into the upper part 11 of the cartridge 10, the film may be wound therein, and the lower part 12 may be assembled later.

FIG. 4 shows another embodiment of the present invention. In the embodiment shown in FIGS. 2 and 3, the non-rotating flange guide 31 is used, but in the embodiment shown in FIG. 4, the touch roller 34 whose end portion is formed in a shade shape.
Is used. The touch roller 34 has a spool shaft 1
By making contact with 3, the flange 16 that contacts the cap portion is deformed by rotation following the rotation, and the flange 16 is regulated so as not to obstruct the film winding. When the winding operation of the film 20 around the spool shaft 13 is started, the touch roller 34 comes into contact with the film 20 and rotates while pressing the film 20.
In the embodiment shown in FIG. 4, the touch roller 34 is the spool shaft 1.
3 includes a mode of rotating in accordance with an independent drive system in a non-contact manner.

[0028]

According to the present invention, for a cartridge having a special structure in which a flexible flange 16 is rotatably attached to the spool shaft 13, an automated assembly line is used to ensure a safe and reliable roll film at high speed. The efficiency of the assembly work is comparable to that of the conventional cartridge assembly line, and the above-mentioned problems can be solved.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of a roll film storage cartridge.

FIG. 2 is a schematic diagram showing an apparatus according to the present invention.

FIG. 3 is an explanatory view of the operation according to the present invention.

FIG. 4 is a perspective view showing another embodiment of the present invention.

[Explanation of symbols]

 10-Cartridge 11-Cartridge upper part 12-Cartridge lower part 13-Spool shaft 14-Long hub 15-Short hub 16-Flange 17-Flange rising part 20-Film 30-Shaft holding means 31-Flange guide 32-- Drive shaft 33-Ultrasonic welding horn 34-Touch roller

Claims (4)

[Claims] 1. A structure in which a loop of a film wound up is prevented by a pair of flanges rotatably attached to a spool shaft, and the stored film is pushed out from a slit of a cartridge by reverse rotation of the spool shaft. In the method of assembling the film storage cartridge,
A method for assembling a roll film storage cartridge, wherein when the roll film is wound around a spool shaft, a flange escape operation is performed so that at least a portion of the film in a wound state is in non-contact with the flange. 2. A means for fixing at least one part of a cartridge divided into at least an upper part and a lower part at a film winding position, and a spool shaft unit assembled by a separately prepared assembly line. A supply means for supplying onto one part, a shaft holding means for preventing the spool shaft from moving upward, a drive means for rotating the spool shaft, and a film rotatably attached to the spool shaft. A flange releasing means for releasing a part of a flexible flange having an annular rising portion that presses the end of the film from a film passing position, a means for supplying the other one of the parts, and a means for fixing the upper and lower parts together. , And has a structure in which the film is wound around the spool shaft through the flange part that is released by the flange guide. Assembly device roll film containing cartridge, wherein Rukoto. 3. The apparatus for assembling a roll film storage cartridge according to claim 2, wherein the flange guide has a function of a touch roller for tightly winding the film. 4. The apparatus for assembling a roll film storage cartridge according to claim 2, wherein the flange guide also has a function of a film guide for guiding the film to the spool shaft.