| 摘要 |
PURPOSE:To enhance the film transporting performance by equipping a film transport mechanism of an X-ray quick photographing device of cassetteless type with a transport roller using a uni-directional rotating bearing, and by reducing the film speed immediately before the magazine. CONSTITUTION:An exposed film exhausted from a film holder 10 is sent to transport rollers 6, 7 through transport rollers 18, 19. After the leading edge of the film has reached the rollers 6, 7, it is bitten in by transport rollers 8, 9 in very short time. A gear is installed at an end of the drive shaft for the high-speed transport roller 7, and a uni-directional rotating bearing is set in a gear meshing with the first named, and the low-speed transport roller 9 is fixed on the extension of the shaft of the latter named gear. A pressure is applied to the rollers for idler, 6, 8, by a lever and a tensile spring. Accordingly if the film goes out of the roller 7, the transport speed is sunk to the speed of the roller 9, and the film sent to the magazine 3 is transported with its inertia lessened, which will reduce troubles likely to be generated at the time of accommodation into the magazine. |
