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US 5,018,886 AGranted
Recording apparatus
AssigneeCanon Kabushiki Kaisha
InventorSoichi Hiramatsu
Life of this patent
Estimating the term…
Abstract
In a recording apparatus including a feed knob for manually feeding a recording sheet, a torque limiter is provided for preventing transmission of a torque more than a predetermined value from the feed knob to a recording sheet feeding portion.
Claims3
A recording apparatus comprising:
- a recording sheet feed roller for conveying a recording sheet, said recording sheet feed roller including a roller shaft;
- a feed gear fixed to said roller shaft, said feed gear driving said feed roller when rotated;
- driving means for rotating said feed gear, said driving means including a feed motor for generating a driving force for rotating said feed gear;
- a feed knob for manually driving said roller shaft, said feed knob having a torque limiter for limiting torque more than a predetermined value from being transmitted from said feed knob to said roller shaft, wherein
- said feed knob has a knob shaft which is rotatable relatively to said feed knob and fixed to said roller shaft, and said torque limiter comprises a spring member for applying a pressure between said knob shaft and said feed knob, wherein torque more than a predetermined value is not transmitted through said knob shaft to said roller shaft by the pressure of said spring member.
2 more elements
A recording apparatus comprising:
- a recording sheet feed roller for conveying a recording sheet, said recording sheet feed roller including a roller shaft;
- a feed gear fixed to said roller shaft, said feed gear driving said feed roller when rotated;
- driving means for rotating said feed gear, said driving means including a feed motor for generating a driving force for rotating said feed gear;
- and
- a feed knob for manually driving said roller shaft, said feed knob having a knob shaft which is rotatable relatively to said feed knob and fixed to said roller shaft, and said feed knob having a torque limiter which includes a spring member mounted on said feed knob and having a V-shaped ridge, and a groove formed in said knob shaft and adapted to receive said V-shaped ridge of said spring member, whereby a torque more than a predetermined value is not transmitted to said recording sheet feed means by a pressure generated by engagement between said V-shaped ridge and said groove.
2 more elements
Dependencies are inferred from the claim text.