JPH04106543A - Film cartridge and its formation - Google Patents

Abstract

PURPOSE:To accomplish light tightness in the shell of a cartridge in a state where it is engaged with a scroll loaded inside by respectively providing mutual fitting parts in at least two shell pieces of the cartridge, integrating them and forming a tunnel slit serving for feeding out and feeding in the film. CONSTITUTION:11 is the shell piece, 12 is the shell piece which is fitted in 11, 21 is a fitting groove, and 22 is fitting projection which is fitted in 21 and to which hook function by fitting is given. 31 and 32 form the tunnel slit when they are integrally molded. Then, a ring-like projection 63 movably fitted in a ring-like groove 71 which is provided on a spool shaft 7 can be provided on shaft supporting surfaces 61 and 62. Since a forming stage is repetitively performed in parallel on a circulating transfer means where a chucking means is provided, it is shown by what is called a ladder-type network. Namely, the assembly of the scroll, the assembly of the shell of the cartridge and a following work, which are circularly performed, are connected to the end of a film working stage, the bonding of the film, the overprinting of an identification mark, and the take-up stage of the already worked film of a regular size to a spool, which are serially performed.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a film cartridge in which a rolled photographic roll film is inserted and loaded into a camera, and a method for making the same.

[Conventional technology]

A conventional film cartridge consists of a cylindrical cartridge outer cylinder that forms a tunnel slit for the film outlet on the cylindrical surface, a spool that has flanges on both sides of the film winding shaft, and is inserted into the cartridge outer cylinder. , and caps that are attached to both ends of the cartridge outer cylinder and pivotally support both side shaft portions of the spool.

Further, the roll film wound around the spool is stamped with a film identification symbol, etc., and set to a fixed length, and its end portion is locked to the winding shaft of the spool by adhesive paper or a locking mechanism. A scroll with a film wound around a spool is inserted along the cylindrical axis of the cartridge outer cylinder, and the tip of the film is inserted into the interior with a light-shielding telescope inside and exposed through the tunnel slit. The cartridge is filled in and capped to complete the film cartridge. This exposed tip of the film is called a tongue.

This type of film cartridge is characterized in that the light density is achieved by attaching a cap, and can be called a crown type.

Moreover, a pair of light-shielding telescope strips are separately attached in advance to the inside of the tunnel slit portion.

Furthermore, the tongue piece provided on the crown-type film cartridge is a loss that cannot be used for photography, and it also complicates the operation of loading the σ-shaped double-wound film into the cartridge outer cylinder, and furthermore, it can cause curling. It is a cumbersome operation to load the film into the camera by placing the tongue on the film rail of the camera.

In addition, since the finished film is pulled into the cartridge up to the tongue and taken out, it is necessary to use a special tool to take out the tongue or to disassemble and destroy the cartridge for development.

Regarding these disadvantages of crown-type film cartridges, 2
A film cartridge has been proposed in which two capsule pieces are joined to form a cartridge case, and a scroll around which film is wound is inserted inside without exposing the tongue pieces (U.S. Pat.
, No. 832, 275, No. 4,834゜306, No. 4,
No. 846,418, No. 4,848.693).

In the proposed technique, it is essential to safely and reliably remove the tongue piece from the film cartridge. However, in order to take out the tongue piece, it is necessary to introduce a certain mechanism into the cartridge, and with the crown type, there is no room for this and it seems almost impossible, so it is convenient to have a configuration in which the inside of the cartridge is opened and the work can be done. . In other words, the form in which the pod pieces are joined to form a pod body (patrone shell), and its characteristics are called the pod type.
A shell-shaped film cartridge is suitable for the tongue-wrapping method in which the tongue does not stick out.

For example, in the aforementioned U.S. Pat. No. 4,834.306, a scroll using a spool having an elastic disk instead of a flange is housed in a cartridge shell provided with a film feeding member inside. .275 issue,
No. 4,846,418 also discloses a shell-type film cartridge in which a feeding member convenient for feeding the film is installed, and other auxiliary members and mechanisms are added to seal the scroll.

In order to create a cartridge of this shape, the film is processed through regular film processing processes such as determining the length of the film and burning identification symbols, and then winding the film around the spool to form a scroll, forming a scroll into a disc, ring, etc. The manufacturing procedure is to attach the members, load the scroll into one of the shell pieces, and glue or weld the other shell piece.

In the above-mentioned method for making a capsule-shaped film cartridge, although the film processing process can be carried out as before, in the crown-type one, there is a scroll in which the film is wound around a spool with seven lunges, a cartridge shell, and the king of the caps. The assembly process is now replaced by the process of attaching discs or rings to the scroll, increasing the number of parts handled in the film cartridge assembly process, and thus increasing the means for supplying them. , a process different from that for the crown, in which the pod pieces are joined using means such as gluing or welding to create a cartridge pod, is required.In addition to reducing the number of parts, it is necessary to arrange the supply means, prevent mixing of parts,
In terms of work efficiency and productivity, such as increasing the efficiency of the work area, new work procedures, the layout of work departments, and measures to prevent danger are required.

(Objective of the Invention) The object of the present invention is to (1) provide a film cartridge with a casing having a small number of parts in the assembly process, and (2) provide a film cartridge with good productivity, safety, and workability. The purpose is to provide a method for creating it.

(Structure of the Invention) The above-mentioned objects of the present invention are: (1) In a cartridge case that is integrally molded by joining at least two cartridge case pieces connected by a hinge, Each cartridge casing piece has a mutually fitting part, and by integral molding, a tunnel slit for feeding and feeding the film of the cartridge casing is formed, and the tunnel slit is engaged with the scroll contained therein. and (2) the process for creating the film cartridge includes a film processing process, a scroll assembly process, a cartridge case assembly process, and a subsequent work process, Scroll assembly, cartridge case assembly, and subsequent operations are carried out synchronously at each assembly and work position during stops in which the circulating transfer means equipped with chucking means for these purposes is intermittently circulated. This is achieved by a method for creating a film cartridge featuring characteristics.

In an embodiment of the present invention, at least two capsule segments are connected by a hinge to form a cartridge capsule that can be opened and expanded internally, but the hinge mechanism does not maintain the connected state when supplied to the assembly department. It is sufficient if it is maintained, and its mode is arbitrary.

Further, it is preferable that the respective fitting portions of the pod pieces, for example, the fitting protrusion and the fitting groove, be given a hook function by fitting.

Furthermore, the spool according to the present invention may be provided with seven lunges.

Furthermore, a ring-shaped protrusion is provided on the spool shaft support hole surface of the cartridge case, and a ring-shaped groove is provided on the spool shaft to loosely fit this ring-shaped protrusion. A suppressing function may be provided.

Further, the film feeding member provided within the cartridge case may be the member disclosed in the above-mentioned US patent.

Next, FIG. 1 shows an example of a cartridge case according to the present invention. Figure (a) is a developed perspective view, and figure (b) is a side view.

11 is a shell piece, 12 is a shell piece that fits into this, 21 is a fitting groove, and 22 is a fitting protrusion that fits into 21, and a hook function is provided by fitting.

31 and 32 form a tunnel slit when integrally molded. 4 is a hinge. 52 is a film feeding member. 6 is a shaft support hole of the spool, and 6162 is a shaft support surface.

A ring-shaped protrusion 63 that is loosely fitted into a ring-shaped groove 71 provided on the spool shaft 7 can be provided on the shaft support surface. An example of this is shown in FIG. 2 as a sectional view taken along a plane including the spool shaft.

Next, FIG. 3 shows the film cartridge production process of the present invention in a part network diagram. The production process of the present invention is repeatedly performed in parallel on a circulating transfer means (hereinafter referred to as a circulating system) provided with a chucking means (hereinafter abbreviated as a chuck), so it is shown as a so-called ladder network.

In the present invention, serial film processing steps, namely, film supply from the cut film original roll, film bonding,
At the end of the process of burning the identification mark, measuring the length, and winding the processed film onto the spool, the cyclic scroll assembly,
Patrone case assembly and subsequent work (e.g. attached instruction manual,
(packing, unloading, etc.) are connected.

Note that the subsequent work may be separated from the scroll assembly and cartridge case assembly in chronological order due to the workplace, personnel, etc.

In Figure 3, the first line of the network is the film processing process, the second line is the scroll assembly process carried out by chuck (1), the third line is the cartridge case assembly process carried out by chuck (2), and the fourth line is the film processing process. is Chuck (3
) represents the follow-on work to be done. In the present invention, the film cartridge production process is roughly divided into four, so there are four lines.

Product to be processed No. 1 (hereinafter, the product to be processed will be indicated by No.)
After finishing the film processing job (11-12), the supply means supplies the chuck (1) to the chuck (1) department that assembles the scroll within the time indicated by the dummy (D+2), and the job (21) finishes the film processing job (11-12). to 22), and is transferred to the chuck (2) department where cartridge casings are assembled using the cruise transition dummy (Dzs), and is synchronized with the job (21 to 22) that is about to start during intermittent cruise suspension. Then assemble the cruising transition dummy (D
In ia), the chuck is transferred to the chuck (3) department where the follow-up work is performed, and the follow-up work is performed.

In the present invention, the patrol system parts on which No. and L are placed return to the chuck (1) station at the end of the job (41-42). That is, job (21-22) - dummy (
I) z, ) - job (31-32) - dummy (D 34
)-Job (41-42) represents one round of the cyclic system. The same goes for other parts of the cyclic system.

Note that the present invention requires synchronous completion of machining, so if it is difficult to maintain synchronization in a single system due to location or other factors, it is necessary to subdivide the work to maintain synchronization or to maintain synchronization in multiple systems. It may also be a cyclic system.

In the network, a job means intermittent stoppage of a patrol system, and dummies D, 3, and D34 mean a shift to a patrol system. Furthermore, the dummy d2 and d on the 2nd and 3rd lines are provided to prevent network confusion. For example, if dummy d, d3 are omitted, the fourth line chuck (3
), the job (41-42) for No. 1 is N
Jobs (21-22), (31-32) for o, l
Jobs (12-13) and (22-23) for No. 2, which should originally proceed regardless of No. 1, cannot be started until they are completed, and the work contents cannot be expressed.

In addition, for work efficiency or danger prevention, each chuck position is
The supply means is arranged with sufficient consideration given to the structure and ergonomics.

(Effects of the Invention) The pod-shaped film cartridge of the present invention can increase production efficiency because the number of parts handled in the assembly process is small and assembly is easy.

Further, according to the synchronous and parallel manufacturing method of the present invention, the work can be subdivided and parallel processing can be performed on the premise of synchronization, so that the manufacturing process can be shortened in a steady flow.

Furthermore, since each work department can be made independent with sufficient margin, even if a welding means is incorporated into the integral molding of the casing, it is possible to consider an arrangement that is sufficiently safe.

[Brief explanation of drawings]

FIG. 1 is a developed perspective view and a side view of an example of a cartridge case according to the present invention. Figure i12 is a sectional view of an example of a spool with a loose fitting structure and a shaft support surface. FIG. 3 is a ladder-type part network diagram for explaining the film cartridge production method of the present invention. 11 and 12... Cap pieces 21 and 22... Cap fitting parts 31 and 32... Tunnel slit forming part 4
... Hinge 52 ... Film feeding member 6
...Spool shaft support holes 61 and 62...Spindle support surface

Claims (2)

[Claims] (1) In a cartridge case that is integrally molded by joining at least two cartridge case pieces connected by a hinge, each of the at least two cartridge case pieces has a mutual fitting part. , is characterized in that by integral molding, a tunnel slit for feeding and feeding the film of the cartridge case is formed, and the tunnel slit is engaged with the scroll contained therein to make the interior of the cartridge case light-tight. Film patrone. (2) The film cartridge creation process includes a film processing process, a scroll assembly process, a cartridge case assembly process, and a subsequent work process, and the scroll assembly, cartridge case assembly, and subsequent work are used for these purposes. A method for producing a film cartridge, characterized in that the process is carried out synchronously at each assembly and work position while a circulating transfer means equipped with a chucking means is intermittently circulated and stopped.