Film drawing device and a drawing plate for use in the film drawing device
AssigneeNoritsu Koki Co., Ltd.
InventorsMasanori Nishibata, Nobuyuki Wada, Hideto Yoshizuka, Keiji Ueno, Kazuo Nakata, Masayasu Nakaoka, Takumi Shigeno
Life of this patent
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Abstract
A drawing plate for a film end drawing device is provided which is inserted through a film entrance of a patrone into the patrone. The drawing plate is used in drawing one end portion of a film wound in the patrone from the film entrance. The drawing plate is provided, on its surface to be overlaid with the film, with a friction material having a large coefficient of friction such that the one end portion of the film in the patrone can be drawn out from the film entrance by means of frictional resistance of the friction material.
Claims20
A film drawing apparatus comprising:
- a drawing plate including a tip end, a basal end, and a film-facing surface having a first flank and a second flank;
- and
- friction material provided along said first flank of said film-facing surface of said drawing plate and provided along said second flank of said film-facing surface of said drawing plate so as to form a zone between said first flank of said film-facing surface and said second flank of said film-facing surface, wherein said zone is free of said friction material, said friction material having a large coefficient of friction such that said drawing plate can be inserted into a patrone containing wound film and draw out an end of the film due to a frictional resistance of said friction material.
A film drawing apparatus comprising:
- a drawing plate including a tip end, a basal end, and a film-facing surface having a first flank and a second flank;
- friction material provided along said first flank of said film-facing surface of said drawing plate and provided along said second flank of said film-facing surface of said drawing plate so as to form a zone between said first flank of said film-facing surface and said second flank of said film-facing surface, wherein said zone is free of friction material;
- a patrone carrying component;
- a rotation drive mechanism for rotating a spool of a patrone in a winding direction;
- and
- a reciprocating drive mechanism for moving said drawing plate in a reciprocating manner so as to insert said drawing plate into the patrone and retract said drawing plate from the patrone;
- wherein said rotation drive mechanism inserts said drawing plate into the patrone such that the film is overlaid onto said friction material provided along said film-facing surface of said drawing plate, said friction material having a large coefficient of friction such that said drawing plate can draw out an end of the film due to a frictional resistance of said friction material when the overlaid drawing plate is retracted by said reciprocating drive mechanism.
Dependencies are inferred from the claim text.