Back to results
US 5,485,991 AGranted
Automatic sheet feeding apparatus
AssigneeCanon Kabushiki Kaisha
InventorsHirofumi Hirano, Koh Hasegawa, Hiroyuki Inoue, Toshihiko Bekki, Masaharu Ikado
Life of this patent
Estimating the term…
Abstract
The present invention provides an automatic sheet feeding apparatus comprising sheet supporting means for supporting a plurality of sheets, sheet supply means for feeding out the sheets supported by the sheet supporting means, separation means for separating the sheets one by one by abutting the sheet against the separation means and by riding one of the sheets over the separation means, and flexion permitting means for causing the sheet supply means not to apply the load to the flexion of the sheet produced when the sheet is riding over the separation means.
Claims27
An automatic sheet feeding apparatus, comprising:
- sheet supporting means for supporting a plurality of sheets thereon;
- sheet supply means for feeding out sheets supported by said sheet supporting means;
- and
- separation means, including a semi-circular plate member disposed downstream of said sheet supply means, for causing one of the sheets fed by said sheet supply means to flex and ride over the semi-circular plate member of said separation means, thereby to separate the sheets one by one;
- wherein said sheet supply means comprises a plurality of rotary sheet supply members, and at least one of said rotary sheet supply members is elastically deformable to follow a flexure of the sheet generated when the sheet fed by said sheet supply means is riding over the semicircular plate member of said separation means.
2 more elements
An automatic sheet feeding apparatus, comprising:
- sheet supporting means for supporting a plurality of sheets thereon;
- sheet supply means for feeding out sheets supported by said sheet supporting means;
- a semi-circular plate member inclinably mounted for abutting leading edges of sheets fed out by said sheet supplying means, for separating the sheets one by one by causing one of the sheets fed by said sheet supply means to ride over said semi-circular plate member, an inclination angle of the semi-circular plate member varying in accordance with a force applied by leading edges of the sheets fed by said sheet supply means;
- wherein said sheet supply means is elastically deformable to follow a flexure of a sheet produced when said sheet is riding over said semi-circular plate member.
1 more element
A recording system, comprising:
- sheet supporting means for supporting a plurality of sheets thereon;
- sheet supply means for feeding out sheets supported by said sheet supporting means;
- separation means, including a semi-circular plate member disposed downstream of said sheet supply means, for causing one of the sheets fed by said sheet supply means to flex and ride over the semi-circular plate member, thereby to separate the sheets one by one;
- and
- recording means for recording an image on a sheet separated one by one by said separation means;
- wherein said sheet supply means comprises a plurality of rotary sheet supply members, and at least one of said rotary sheet supply members is elastically deformable to follow a flexure of the sheet generated when said one sheet is riding over the semi-circular plate member of said separation means.
3 more elements
A recording system, comprising:
- sheet supporting means for supporting a plurality of sheets thereon;
- sheet supply means for feeding out sheets supported by said sheet supporting means;
- a semi-circular plate member inclinably mounted for abutting leading edges of sheets fed out by said sheet supply means, for separating the sheets one by one by causing a sheet to ride over said semi-circular plate member;
- and
- recording means for recording an image on a sheet separated by said separation means;
- wherein said sheet supply means is elastically deformable to follow a flexure of a sheet generated when the sheet fed by said sheet supply means is riding over the semicircular plate member of said separating means.
3 more elements
An automatic sheet feeding apparatus, comprising:
- sheet supporting means for supporting a plurality of sheets thereon,
- rotary sheet supply means for feeding out sheets supported by said sheet supporting means, by applying a rotary drive force to the sheets;
- and
- separation means, including a semicircular plate member, for separating sheets fed out by said rotary sheet supply means one by one by causing a sheet fed by said rotary sheet supply means to flex and ride over the semi-circular plate member, an inclination angle of the semi-circular plate member varying in accordance with a force applied by leading edges of sheets fed by said rotary sheet supply means;
- wherein said rotary sheet supply means is disposed at a position corresponding to a location of a flexure of a sheet produced by said semi-circular plate member and is deformable to follow the flexure of said sheet so as not to apply any substantial force other than the rotary drive force.
2 more elements
A recording system, comprising:
- sheet supporting means for supporting a plurality of sheets thereon;
- rotary sheet supply means for feeding out sheets supported by said sheet supporting means, by applying a rotary drive force to the sheets;
- separation means, including a semi-circular plate member, for separating sheets one by one by causing a sheet fed by said rotary sheet supply means to flex and ride over said semi-circular plate member;
- and
- recording means for recording an image on a sheet separated by said separation means;
- wherein said rotary sheet supply means is disposed at a position corresponding to a location of a flexure by said separation means, and is deformable to follow a flexure of said sheet so as not to apply any substantial force other than the drive force.
3 more elements
An automatic sheet feeding apparatus comprising:
- sheet supporting means for supporting a plurality of sheets thereon;
- sheet supply means for feeding out sheets supported by said sheet supporting means;
- and
- separation means, including a semi-circular plate disposed downstream of said sheet supply means, for separating sheets fed out by said sheet supply means, sheets fed out by said sheet supply means riding over the semi-circular plate thereby being separated one by one;
- wherein said sheet supply means includes a plurality of rotary sheets supply members, and wherein one of said rotary sheet supply members follows a flexure of a sheet produced when the sheet is riding over the semi-circular plate.
2 more elements
A recording system, comprising:
- sheet supporting means for supporting a plurality of sheets thereon;
- sheet supply means for feeding out sheets supported by said sheet supporting means;
- separation means, including a semi-circular plate disposed downstream of said sheet supply means, for separating sheets fed by said sheet supply means, sheets fed out by said sheet supply means riding over the semi-circular plate thereby being separated one by one;
- and
- recording means for recording an image on a sheet separated one by one by said separation means;
- wherein said sheet supply means includes a plurality of rotary sheet supply members, and wherein one of said rotary sheet supply members follows a flexure of a sheet generated when the sheet is riding over the semi-circular plate.
3 more elements
Dependencies are inferred from the claim text.