Roller supporting device allowing easy replacement of separating roller
AssigneeCanon Kabushiki Kaisha
InventorsTsuyoshi Yamauchi, Akimitsu Hoshi, Yukitoshi Takeuchi
Life of this patent
Estimating the term…
Abstract
A shaft portion of a retard roller is supported by a pair of supporting members so that the retard roller can be assuredly supported and easily detached. One of the pair of supporting members is provided so as to be movable in the axial direction of the shaft portion. By moving the movable supporting member in a direction of separating from the shaft portion, the retard roller can be detached. A regulation device regulates movement of the movable supporting member in the direction of separating from the shaft portion at a position where the pair of supporting members engage with the shaft portion and is provided on a guide cover for blocking an opening for mounting/detaching the retard roller.
Claims21
A roller supporting device for supporting a roller having a shaft portion with two ends and a roller portion on a main body of said device, said device comprising:
- a pair of supporting members for supporting the roller by each engaging with a respective end of the shaft portion, at least one of said pair of supporting members being a movable supporting member movable axially along the shaft portion so that the roller can be detached by moving said movable supporting member in a separating direction to separate it from the shaft portion;
- and
- regulation means for regulating the movement of said movable supporting member in the separating direction by abutting against said movable supporting member in a direction opposite to the separating direction at a regulating position, when said movable supporting member engages with the shaft portion, and said regulation means being movable in a direction non-parallel to the separating direction thereby moving between the regulating position and a non-regulating position in which said movable supporting member can be disengaged from the shaft portion.
A sheet feeding device having conveying rotation means rotating in a sheet feeding direction, and reverse-rotation separation means, rotating in a direction opposite to the sheet feeding direction, for individually separating sheets between the conveying rotation means and the reverse-rotation separation means and for feeding each of the separated sheets, said device comprising:
- a pair of supporting members for supporting the reverse-rotation separation means by engaging with both ends of a shaft portion thereof, said pair of supporting members provided at a main body of said sheet feeding device, at least one of said pair of supporting members being a movable supporting member movable axially along the shaft portion so that the reverse-rotation separation means is detachable when said movable supporting member is moved in a separating direction to separate it from the shaft portion;
- and
- regulation means for regulating the movement of said movable supporting member in the separating direction by abutting against said movable supporting member in a direction opposite to the separating direction at a regulating position, when said movable supporting member engages with the shaft portion, and said regulation means being movable in a direction non-parallel to the separating direction thereby moving between the regulating position and a non-regulating position in which said movable supporting member can be disengaged from the shaft portion.
A sheet processing device having conveying rotation means rotating in a sheet feeding direction, reverse-rotation separation means rotating in a direction opposite to the sheet feeding direction, and a sheet processing unit for processing the sheet separated by said conveying rotation means and said reverse-rotation means, said sheet processing device comprising:
- a pair of supporting members for supporting the reverse-rotation separation means by engaging with both ends of a shaft portion thereof, said pair of supporting members provided at a main body of said sheet processing device, at least one of said pair of supporting members being a movable supporting member movable axially along the shaft portion so that the reverse-rotation separation means is detachable when said movable supporting member is moved in a separating direction to separate it from the shaft portion;
- and
- regulation means for regulating the movement of said movable supporting member in the separating direction by abutting against said movable supporting member in a direction opposite to the separating direction at a regulating position, when said movable supporting member engages with the shaft portion, and said regulation means being movable in a direction non-parallel to the separating direction thereby moving between the regulating position and a non-regulating position in which said movable supporting member can be disengaged from the shaft portion.
A roller supporting device for supporting a roller having a shaft portion with two ends and a roller portion on a main body of said device, said device comprising:
- a pair of supporting members for supporting the roller by each engaging with a respective end of the shaft portion, at least one of said pair of supporting members being a movable supporting member movable axially along the shaft portion so that the roller can be detached by moving said movable supporting member in a separating direction to separate it from the shaft portion;
- an opening receiving the roller in the main body;
- and
- a cover for covering said opening;
- wherein said cover has regulation means for regulating the movement of said movable supporting member in the separating direction when said movable supporting member engages with the shaft portion, wherein said movable supporting member is disengaged from the shaft portion when said cover is removed from said opening.
A sheet feeding device having conveying rotation means rotating in a sheet feeding direction, and reverse-rotation means, rotating in a direction opposite to the sheet feeding direction, for separating sheets between the conveying rotation means and the reverse-rotation separation means one by one, said device comprising:
- a pair of supporting members for supporting the reverse-rotation separation means by engaging with both ends of a shaft portion thereof, said pair of supporting members provided at a main body of said sheet feeding device, at least one of said pair of supporting members being a movable supporting member movable axially along the shaft portion so that the reverse-rotation separation means is detached by moving said movable supporting member in a separating direction to separate it from the shaft portion;
- an opening receiving said reverse-rotation separation means in the main body;
- and
- a cover for covering said opening;
- wherein said cover has regulation means for regulating the movement of said movable supporting member in the separating direction when said movable supporting member engages with the shaft portion, wherein said movable supporting member is disengaged from the shaft portion when said cover is removed from said opening.
A sheet processing device having conveying rotation means rotating in a sheet feeding direction, reverse-rotation means, rotating in a direction opposite to the sheet feeding direction, for separating sheets between the conveying rotation means and the reverse-rotation separation means one by one, and a sheet processing unit for processing the sheet separated by said conveying rotation means and said reverse-rotation means, said sheet processing device comprising:
- a pair of supporting members for supporting the reverse-rotation separation means by engaging with both ends of a shaft portion thereof, said pair of supporting members provided at a main body of said sheet feeding device, at least one of said pair of supporting members being a movable supporting member movable axially along the shaft portion so that the reverse-rotation separation means is detached by moving said movable supporting member in a separating direction to separate it from the shaft portion;
- an opening receiving the reverse-rotation separating means in the main body;
- and
- a cover for covering said opening;
- wherein said cover has regulation means for regulating the movement of said movable supporting member in the separating direction when said movable supporting member engages with the shaft portion, wherein said movable supporting member is disengaged from the shaft portion when said cover is removed from said opening.
Dependencies are inferred from the claim text.