Adhesive bonding and miscellaneous chemical manufacture – Methods – Surface bonding and/or assembly therefor
Reexamination Certificate
2000-02-29
2002-04-16
Mayes, Curtis (Department: 1734)
Adhesive bonding and miscellaneous chemical manufacture
Methods
Surface bonding and/or assembly therefor
C156S191000, C156S192000, C156S256000, C156S277000, C156S350000, C156S351000, C156S459000, C156S519000, C242S444000
Reexamination Certificate
active
06372065
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to an apparatus and a method for producing photographic roll films, which make it possible to produce at least two types of photographic roll films having different sizes.
2. Description of the Related Art
In general, the photographic roll film is classified into several types including those called the 120 type and the 220 type. The 120 type photographic roll film comprises a spool, a photographic film strip wound around the spool, a shield paper strip wound around the spool together with the photographic film strip to serve as the back side paper for the photographic film strip, an adhesive tape for fixing the forward end of the product (rearward end during the production) of the photographic film strip to the shield paper strip, an opening seal wound around the outer circumference of the shield paper strip to avoid any winding looseness of the photographic film strip and the shield paper strip wound around the spool, and an enclosing seal for being used to avoid any winding looseness of the photographic film strip and the shield paper strip wound around another spool after the photographing operation.
The photographic film strip, which is used for the 120 type photographic roll film, has a length capable of photographing 12 frames in the case of the 6 cm×6 cm format, a length capable of photographing 8 frames in the case of the brownie size 6 cm×9 cm format, or a length capable of photographing 16 frames in the case of the half size 6 cm×4.5 cm format.
Another photographic roll film of the half size type also exists, which has the same structure as that of the ordinary 120 type photographic roll film, provided that the lengths of the photographic film strip and the shield paper strip are about the half of those of the ordinary 120 type photographic roll film, making it possible to perform the photographing operation for 8 frames with the half size 6 cm×4.5 cm format.
The 220 type photographic roll film is constructed in approximately the same manner as the 120 type except for the following points. That is, the back side paper is avoided, a leader and a trailer, which are made of the same material as that of the shield paper strip, are attached to the forward end and the rearward end of the photographic film strip. Thus, the photographic film strip, which is wound around the spool, is allowed to have a long size to increase the number of photographing frames.
The film information concerning the photographic film strip wound around the spool is previously printed on the shield paper strip, the opening seal, and the enclosing seal.
The film information includes the information indicating whether the photographic roll film is of the 120 type or the 220 type, the film size indicating whether the length of the photographic film strip is the full size or the half size, the ISO sensitivity, the film type indicating whether the photographic film strip is color or black-and-white and whether the photographic film is negative or reversal if the photographic film is color, and the treatment number indicating the development treatment method.
The film information and the serial number for indicating the production information such as the lot number and the processing sequence are side-printed on the photographic film strip during the production of the photographic roll film. The serial number is also printed on the opening seal during the production of the photographic roll film.
It has been suggested that any coded information indicating the classification of the 120 type and the 220 type is previously printed on the adhesive tape together with the film information. When the photographic roll film is charged in a camera to be used, a bar code of the adhesive tape is read by a bar code reader of the camera to be utilized. According to this technique, it is possible to automate various setting operations such as setting of the film sensitivity and the number of photographing frames and switching of the pressure plate, which have been hitherto performed by the manual operation.
However, the conventional production apparatus adopts the system for producing the photographic roll film concerning one size, for example, the full size. For this reason, when the photographic roll films concerning two or more sizes are produced, it is necessary that the production apparatuses are installed for the respective sizes. It is feared that the production equipment becomes large, the installation space is increased, and there is any limit of the reduction of the production cost.
SUMMARY OF THE INVENTION
The present invention has been made taking the foregoing problems into consideration, an object of which is to provide an apparatus and a method for producing photographic roll films, which make it possible to produce photographic roll films concerning two or more sizes in a switching manner with ease, realize a small size of the production equipment, reduce the installation space, and reduce the production cost.
According to the present invention, there is provided an apparatus for producing photographic roll films, comprising a film supply section for supplying a photographic film strip, a shield paper supply section for supplying a shield paper strip, a winding section for winding the photographic film strip and the shield paper strip around a spool, and a transport system for transporting the photographic film strip to the winding section; wherein the film supply section includes a film-cutting means for cutting a lengthy photographic film fed from a film roll into those having a length suitable for a film size included in film information; the apparatus further comprises a transport operation-changing means for changing transport operation for the photographic film strip depending on the film size, between the film supply section and the transport system for the photographic film strip; and the apparatus further comprises a timing-changing means for changing transport timing depending on the film size, for the transport system for the photographic film strip and a transport system for the shield paper strip.
Accordingly, at first, the lengthy photographic film, which is fed from the film roll, is cut into those having the length suitable for the film size included in the film information, by means of the film-cutting means.
Subsequently, the transport operation-changing means, which is installed between the film supply section and the transport system for the photographic film strip, is used to change the transport operation for the photographic film strip depending on the film size.
The timing-changing means changes the transport timing for the photographic film strip and the transport timing for the shield paper strip to be transported to the winding section depending on the film size.
In other words, in the present invention, the cutting is performed to give the photographic film strip suitable for the film size included in the film information. The transport operation for the photographic film strip is also changed depending on the film size. Further, the transport timing for the photographic film strip and the transport timing for the shield paper strip to be transported to the winding section are changed depending on the film size.
Therefore, in the present invention, the photographic roll films concerning two or more sizes can be easily produced in a switching manner. Thus, it is possible to realize a small scale of the production equipment, reduce the installation space, and reduce the production cost.
It is preferable that the film-cutting means cuts the lengthy photographic film on the basis of a start signal corresponding to the film size supplied from a start signal-generating means to give a photographic film strip having a length suitable for a current film size.
In this arrangement, the start signal-generating means may include an origin signal-generating means for generating a plurality of origin signals corresponding to the film sizes; and a selector section for selecting an o
Seto Yukio
Tabuchi Masaharu
Yamamoto Taro
Fuji Photo Film Co. , Ltd.
Mayes Curtis
Sughrue & Mion, PLLC
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