Punching apparatus for moving a punching unit in a circumferential direction of a cylindrical inner surface scanner
AssigneeDainippon Screen Mfg. Co., Ltd.
InventorsYoshio Shimizu, Touru Kawata, Hiroshi Nomoto
Life of this patent
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Abstract
A photosensitive material is mounted onto an inner surface of a cylindrical inner surface drum. An input signal which provides the size of the photosensitive material is supplied to a controller. As the controller drives a pulse motor under the control of a control signal, a moving part with which punching units are connected is moved in a circumferential direction of the drum by means of the pulse motor and positioned at the desired positions for punching. Then only two punching units, determined by the controller in accordance with the size of the photosensitive material, are driven to punch holes in the photosensitive material.
Claims15
A punching apparatus to punch holes in a photosensitive material for use within a cylindrical inner surface scanner, which includes a cylindrical inner surface drum having an inner surface and a central axis, said punching apparatus comprising:
- a plurality of punching units for punching holes in said photosensitive material which is mounted on said inner surface;
- and
- moving means for moving said plurality of punching units within a predetermined range in a circumferential direction of said cylindrical inner surface drum, said moving means moving all of or a portion of said plurality of punching units so that at least two of said punching units perform punching at punching positions which are determined on the basis of a size of said photosensitive material.
A punching apparatus to punch holes in a photosensitive material for use within a cylindrical inner surface scanner, which includes a cylindrical inner surface drum having an inner surface and a central axis, said punching apparatus comprising:
- a plurality of punching units for punching holes in said photosensitive material which is mounted on said inner surface;
- and
- moving means for moving said plurality of punching units within a predetermined range in a circumferential direction of said cylindrical inner surface drum, said moving means moving all of or one part of said plurality of punching units so that at least two of said punching units perform punching at punching positions which are determined on the basis of a size of said photosensitive material.
Dependencies are inferred from the claim text.