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US 5,092,535 AGranted
Film transport apparatus
AssigneeCanon Kabushiki Kaisha
InventorsShinji Murata, Minoru Sashida, Yoshihiko Yoshihara
Life of this patent
Estimating the term…
Abstract
A film transport apparatus comprises a rotary member for abutting against a rolled film wound on a reel held on a cartridge to drive the film forwardly, a separating device arranged upstream of the rotary member with respect to a direction of rotation of the film for separating a leading end of the film, and a pressing device arranged downstream of the rotary member with respect to the direction of rotation of the film for abutting against the rolled film to press the film.
Claims23
A film transport apparatus for feeding out a leading end of a roll film wound on a reel through an opening of a cartridge having the reel therein and conveying the film, comprising:
- a rotary member which is in contact with the film wound on the reel and rotates the film in a predetermined direction to advance the leading end of the film out of the cartridge:
- separation means disposed upstream of said rotary member with respect to the rotational direction of the film rotated by said rotary member, said separation means separating the leading end of the film and guiding it to the opening;
- pressing means disposed downstream of said rotary member with respect to the rotational direction of the film and pressed against the film wound on the reel, said pressing means preventing the leading end of the film rotated in the predetermined direction from being forwarded out of the cartridge between said rotary member and said pressing means;
- a supporting member supporting said rotary member, said separation means and said pressing means, and being movable between a position where said separation means and said pressing means are in contact with a surface of the film wound around the reel and a position where said separation and pressing means are distant from the film surface, wherein said separation means and said pressing means are supported to be independently rotatable from each other;
- and
- biasing means for biasing said separation means and said pressing means to be rotatable toward each other.
3 more elements
A film transport apparatus for feeding out of a leading end of a roll film wound on a reel through an opening of a cartridge having the reel therein and conveying the film, comprising:
- a rotary member which is in contact with the film wound on the reel and rotates the film in a predetermined direction to advance the leading end of the film out of the cartridge;
- separation means disposed upstream of said rotary member with respect to the rotational direction of the film rotated by said rotary member, said separation means separating the leading end of the film and guiding it to the opening;
- pressing means disposed downstream of said rotary member with respect to the rotational direction of the film and pressed against the film wound on the reel, said pressing means preventing the leading end of the film rotated in the predetermined direction from being forwarded out of the cartridge between said rotary member and said pressing means;
- a supporting member supporting said rotary member, said separation means and said pressing means, and being movable between a position where said separation means and said pressing means are in contact with a surface of the film wound around the reel and a position where both said separation and pressing means are distant from the film surface, wherein said separation means and said pressing means are supported to be independently rotatable from each other;
- biasing means for biasing said separation means and said pressing means to be rotatable toward each other;
- drive means for driving said rotary member;
- and
- transport means for transporting the film separated by said separation means, wherein
- a transport velocity of said transport means is higher than a rotational speed of said rotary member.
6 more elements
A film transport apparatus for feeding out a leading end of a roll film wound on a reel through an opening of a cartridge having the reel therein and conveying the film, comprising:
- a rotary member which is in contact with the film wound on the reel and rotates the film in a predetermined direction to advance the leading end of the film out of the cartridge;
- separation means disposed upstream of said rotary member with respect to the rotational direction of the film rotated by said rotary member, said separation means separating the leading end of the film and guiding it to the opening;
- pressing means disposed downstream of said rotary member with respect to the rotational direction of the film and pressed against the film wound on the reel, said pressing means preventing the leading end of the film rotated in the predetermined direction from being forwarded out of the cartridge between said rotary member and said pressing means;
- and
- a supporting member for supporting said rotary member, said separation means and said pressing means, and being movable between a position where said separation means and said pressing means are in contact with a surface of the film wound around the reel and a position where both said separation and pressing means are distant from the film surface, wherein said separation means and said pressing means are supported to be independently rotatable from each other;
- biasing means for biasing said separation means and said pressing means to be rotatable toward each other;
- and
- control means for controlling the movement of the reel, arranged on said support member for approaching to or abutting a reel in the cartridge when said support member is at said contact position.
5 more elements
A film feed-out apparatus, comprising:
- a roll film cartridge having a reel wound with a roll film therearound and an opening from which a leading end of the roll film is fed out;
- a rotary member which is in contact with the roll film and is rotatable to rotate the roll film to feed the leading end of the rolling film out of said cartridge;
- a separation pawl disposed upstream of said rotary member with respect to a rotational direction of the film rotated by said rotary member, said separation pawl separating the leading end of the roll film and guiding it to the opening;
- a pressing member disposed downstream of said rotary member with respect to the rotational direction of the roll film rotated by said rotary member and pressed to the roll film;
- a supporting member for supporting said rotary member, said separation pawl and said pressing member and being displaced between a position where said rotary member, said separation pawl and said pressing member are in contact with the roll film and a position where said rotary member, said separation pawl and said pressing member are distant from the roll film, with said separation pawl and said pressing member being provided rotatably with respect to said supporting member and rotating along a diameter of the roll film when in contact with a surface of the roll film, wherein said separation pawl and said pressing member are supported to be independently rotatable from each other;
- and
- biasing means for biasing said separation pawl and said pressing member to be rotatable toward each other.
4 more elements
Dependencies are inferred from the claim text.