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Feeding device for feeding recording medium
   
Document Number
US Patent 7264239
Issued Date
September 4, 2007
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Abstract
A feeding device for feeding a recording medium in a feed direction, including: a drive roller having an annular recess; and a driven roller rotatably held and positioned such that a radially outer end portion of the driven roller is positioned within the annular recess of the drive roller. The driven roller is displaceable away from the drive roller, so that the recording medium is fed to pass between the drive and driven rollers, with the recording medium being gripped by the radially outer end portion of the driven roller and the radially outer end portion of the drive roller. The feeding device further includes an overlap-amount limiter including a contact portion which is positioned within the annular recess and which is, during absence of the recording medium between the drive and driven rollers, held in contact at its surface with the radially outer end portion of the driven roller, for thereby limiting an overlap amount by which the radially outer end portion of the driven roller overlaps with the radially outer end portion of the drive roller.
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Number of Claims:
18
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Owner
Published
September 4, 2007
Application Number
10/806,174
Filed
March 23, 2004
US Classification
271/188   271/272 271/274 271/314 347/104 347/218 347/262 347/264 400/636
Int'l Classification
B65H   29/70   (20060101)  
Assistant Examiner
Attorney/Law Firm
Priority Data
Mar 26, 2003 [JP] 2003-084795
USPTO Field of Search
271/188   271/272   271/314   271/274   400/636   347/218   347/104   347/262   347/264  
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7523934 - Roller structure - Owned by Seiko Epson Corporation (Tokyo,JP)

A first roller member is adapted to be fitted on a roller shaft, and includes at least one first portion, extending in a circumferential direction of the roller shaft, and having a first thickness in a radial direction of the roller shaft, and at least one second portion, extending in the circumferential direction, and having a second thickness in the radial direction which is greater than the first thickness, and at least one projection, formed on the first portion. A second roller member is formed on the first roller member, and includes a third portion, opposing the second portion, and having a third thickness in the radial direction, and a fourth portion, opposing the first portion, and having a fourth thickness in the radial direction which is greater than the third thickness.

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Description
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