Sheet feeding apparatus and image forming apparatus
AssigneeCanon Kabushiki Kaisha
InventorIsao Kannari
Life of this patent
Estimating the term…
Abstract
A separation roller is provided in a first end portion of a separation roller shaft through a torque limiter. The separation roller is provided to be able to come into pressure contact with a conveying roller rotatably supported by a conveying roller shaft. A support portion supports the separation roller in a cantilever condition and is formed to be elastically deformable. The support portion supports the separation roller shaft such that the separation roller shaft is inclined by a predetermined angle with respect to the conveying roller shaft such that the first end portion of the separation roller shaft is positioned upstream in a sheet conveying direction of a second end portion in a state in which the conveying roller is not driven.
Claims14
A sheet feeding apparatus comprising:
- a conveying roller configured to convey a sheet;
- a separation roller configured to come into pressure contact with the conveying roller;
- a conveying roller shaft to which the conveying roller is attached;
- a separation roller shaft supported in a cantilever condition and to which the separation roller is attached through a torque limiter;
- a driving source configured to drive the conveying roller;
- a shaft holding portion configured to hold the separation roller shaft;
- a swing support shaft mounted on the shaft holding portion in parallel with the separation roller shaft and swingably supporting the separation roller shaft;
- and
- an elastically deformable bearing portion supporting the swing support shaft,
- wherein the bearing portion supports the swing support shaft such that the separation roller shaft is inclined with respect to the conveying roller shaft so that a first end portion of the separation roller shaft, to which the separation roller is attached, is positioned on an upstream side in a sheet conveying direction of a second end portion of the separation roller shaft, and
- wherein the bearing portion is elastically deformed such that the separation roller shaft is substantially parallel with the conveying roller shaft in a state in which the separation roller receives a force from the conveying roller driven by the driving source.
A sheet feeding apparatus comprising:
- a conveying roller configured to convey a sheet;
- a conveying roller shaft supporting the conveying roller;
- a separation roller provided to come into pressure contact with the conveying roller;
- a separation roller shaft supporting the separation roller at a first end portion thereof through a torque limiter;
- and
- a support portion supporting the separation roller shaft in a cantilever condition and formed to be elastically deformable, the support portion supporting the separation roller shaft such that the separation roller shaft is inclined by a predetermined angle with respect to the conveying roller shaft so that the first end portion of the separation roller shaft is positioned upstream in the sheet conveying direction of a second end portion of the separation roller shaft in a state in which the conveying roller is not driven,
- wherein the support portion is elastically deformed such that the predetermined angle is reduced in a state in which the conveying roller is driven in contact with the separation roller.
Dependencies are inferred from the claim text.