Film running device

Abstract

A film running device which enables the film to run stably, which as a whole is small in size, simple in construction and requires easy maintenance. A long film 1 is delivered from a delivery roll 2. A drive rotor R of the delivery roll incorporates an outer rotor-type electric motor 25 M therein, and is rotated by the motor.

1 . A film running device for running a long film delivered from a delivery roll, wherein a rotary shaft of said delivery roll is a drive rotor which incorporates an outer rotor-type electric motor therein, and said drive rotor is rotated by said motor.  
     
     
         2 . A film running device for running a long film delivered from a delivery roll so as to be taken up by a take-up roll, wherein a rotary shaft of said take-up roll is a drive rotor which incorporates an outer rotor-type electric motor therein, and said drive rotor is rotated by said motor.  
     
     
         3 . A film running device in which a region where a long film runs at a different speed is arranged via a feed roll on a passage along which the long film runs, wherein said feed roll is a drive rotor which incorporates an outer rotor-type electric motor therein, and said drive rotor is rotated by said motor.  
     
     
         4 . A film running device in which a pinch roll is disposed on a passage along which a long film runs, wherein said pinch roll is a drive rotor which incorporates an outer rotor-type electric motor therein, and said drive rotor is rotated by said motor.  
     
     
         5 . A film running device for running a long film delivered from a delivery roll so as to be taken up by a take-up roll, and including a touch roll so disposed as to come into rotational contact with the film taken up by the take-up roll, wherein said touch roll is a drive rotor which incorporates an outer rotor-type electric motor therein, and said drive rotor is rotated by said motor.  
     
     
         6 . A film running device according to    claim 1   , wherein said motor is controlled by controlling the frequency to bring the peripheral speed of said delivery roll into nearly agreement with a predetermined film running speed.  
     
     
         7 . A film running device according to    claim 2   , wherein said motor is controlled by controlling the frequency to bring the peripheral speed of said take-up roll into nearly agreement with a predetermined film running speed.  
     
     
         8 . A film running device according to    claim 3   , wherein said motor is controlled by controlling the frequency to bring the peripheral speed of said drive rotor into nearly agreement with a predetermined film running speed.  
     
     
         9 . A film running device according to    claim 4   , wherein said motor is controlled by controlling the frequency to bring the peripheral speed of said drive rotor into nearly agreement with a predetermined film running speed.  
     
     
         10 . A film running device according to    claim 5   , wherein said motor is controlled by controlling the frequency to bring the peripheral speed of said drive rotor into nearly agreement with a predetermined film running speed.  
     
     
         11 . A film running device according to    claim 1   , wherein the frequency is controlled by an inverter.  
     
     
         12 . A film running device according to    claim 2   , wherein the frequency is controlled by an inverter.  
     
     
         13 . A film running device according to    claim 3   , wherein the frequency is controlled by an inverter.  
     
     
         14 . A film running device according to    claim 4   , wherein the frequency is controlled by an inverter.  
     
     
         15 . A film running device according to    claim 5   , wherein the frequency is controlled by an inverter.