Photosensitive sheet film package and sheet film processing apparatus

Abstract

A photosensitive sheet film package, comprises a container including a floor plate having at least four sides, and side walls, wherein each of the four sides of the floor plate is connected to at least one of the side walls; and wherein the top of the space surrounded by the side walls is opened, a stack of photosensitive sheet films in said container; and a light-shielding bag in which the stack of photosensitive sheet films and the container are packaged light-tightly.

What is claimed is:  
     
         1 . A photosensitive sheet film package, comprising: 
 a container including a floor plate having at least four sides, and side walls, wherein each of the four sides of the floor plate is connected to at least one of the side walls; and wherein the top of the space surrounded by the side walls is opened;    a stack of photosensitive sheet films in said container; and    a light-shielding bag in which the stack of photosensitive sheet films and the container are packaged light-tightly.    
     
     
         2 . The photosensitive sheet film package of  claim 1 , wherein the floor plate is substantially rectangle; and wherein the side walls are substantially arranged to line symmetry to the center line of transverse direction of the rectangle of the floor plate and to the center line of the length direction of the rectangle of the floor plate.  
     
     
         3 . The photosensitive sheet film package of  claim 2 , wherein said at least four side walls are four side walls connected to the four sides of the floor plate and both ends of each of the four side walls are cut out at each of the four corners so as to form an opening at each of the four corners.  
     
     
         4 . The photosensitive sheet film package of  claim 2 , wherein both end faces of each of the four side walls are slanted so that an upper opening section of the opening at each of the four corners is made larger than a lower opening section of the opening.  
     
     
         5 . The photosensitive sheet film package of  claim 2 , wherein said at least four side walls are four L-shaped corner walls provided at each of the four corners so that an opening is provided on a middle section of each of the four sides between two of the four L-shaped corner walls.  
     
     
         6 . The photosensitive sheet film package of  claim 2 , wherein said at least four side walls comprises a pair of small-sized side walls which are connected separately to the same one side of the four sides of the floor plate.  
     
     
         7 . The photosensitive sheet film package of  claim 1 , wherein the floor plate is provided with a through hole.  
     
     
         8 . The photosensitive sheet film package of  claim 1 , wherein the container is made of a resin material.  
     
     
         9 . The photosensitive sheet film package of  claim 1 , wherein the resin is one of polyethylene terephthalate and high-density polystyrene.  
     
     
         10 . The photosensitive sheet film package of  claim 1 , wherein the container has rigidity.  
     
     
         11 . The photosensitive sheet film package of  claim 1 , wherein an inside pressure of the light-shielding bag is reduced to be lower than atmospheric pressure.  
     
     
         12 . The photosensitive sheet film package of  claim 11 , wherein the reduced inside pressure of the light-shielding bag is −60 to −70 kilo-pascal.  
     
     
         13 . The photosensitive sheet film package of  claim 1 , wherein a bar code showing the characteristic of the photosensitive sheet film is provided on the bottom side of the floor plate.  
     
     
         14 . A photosensitive sheet film package, comprising 
 a rigid container including a floor plate and at least one side wall,    a stack of photosensitive sheet films on the floor plate; and    a light-shielding bag in which the stack of photosensitive sheet films and the container are packaged light-tightly,    wherein pressure of inside of the light-shielding bag is lower than atmospheric pressure.    
     
     
         15 . The photosensitive sheet film package of  claim 14 , wherein the container is made of a resin material.  
     
     
         16 . The photosensitive sheet film package of  claim 14 , wherein the reduced inside pressure of the light-shielding bag is −60 to −70 kilo-pascal.  
     
     
         17 . An apparatus to processing photosensitive sheet films packaged in a photosensitive sheet film package which comprises 
 a rigid container including a floor plate and at least one side wall,    a stack of photosensitive sheet films on the floor plate; and    a light-shielding bag in which the stack of photosensitive sheet films and the container are packaged light-tightly,    the apparatus comprising    a main body in which inside is light-shielded;    a tray shiftable between a first position at outside of the main body and a second position at inside of the main body, wherein the photosensitive sheet film package which is loaded on the tray at the first position is shiftable together with the tray to the second position;    a pull-out device to pull out the light-shielding bag from the photosensitive sheet film package from the direction of the side wall side of the rigid container; and    a film pull-out device to pull out a sheet film one by one from the tray at the second position.    
     
     
         18 . The apparatus of  claim 17 , wherein the pull-out device has a pull-out shaft to pull out the light-shielding bag, the apparatus comprises a driving device to drive the pull-out device and the driving device engages with both sides of the pull-out shaft.  
     
     
         19 . The apparatus of  claim 18 , wherein the pull-out shaft is incorporated in the tray, a pinion gear is provided each of the both ends of the pull-out shaft and the pinion engages with a rack so that when the tray is shifted from the first position to the second position, the pinions rotate on the racks with the shifting movement of the tray and the pull-out shaft is rotated with the rotation of the pinion.  
     
     
         20 . The apparatus of  claim 19 , wherein one end of the light-shielding bag is hooked on the pull-out shaft and is wound around the pull-out shaft with the rotation of the pull-out shaft so that the light-shielding bag is pulled out from the photosensitive sheet film package.  
     
     
         21 . The apparatus of  claim 17 , wherein the tray comprises a cover member movable with the shift movement of the tray in such a way that when the tray is located at the first position, the cover member covers the top of the tray light-tightly, and when the tray is shifted to the second position, the cover member opens the top of the tray.  
     
     
         22 . The apparatus of  claim 17 , wherein the film holding device comprises a pick-up member to pick up a sheet film with vacuum, and wherein the film holding device brings the pick-up member in contact with an uppermost sheet film, moves the pick-up member so as to bring the uppermost sheet film in contact with the side wall of the container, lifts up the pick-up member together with the container uppermost, and transfers the uppermost sheet film to a conveying device.  
     
     
         23 . The apparatus of  claim 22 , wherein after the film holding device brings the uppermost sheet film in contact with the side wall of the container, the film holding device releases the uppermost sheet film from the pick-up member, thereafter the film holding device picks up again the uppermost sheet film with the pick-up member.