Title:
原稿搬送装置およびこれを用いた原稿自動読取り装置
Document Type and Number:
Japanese Patent JP4040586
Kind Code:
B2
Abstract:
In an embodiment of the present invention, a pickup roller R1 makes soft contact to an upper surface of a manuscript by being lowered incrementally in four raising-lowering operations S1 to S4 in which, when an electromagnetic clutch connects, the pickup roller is lowered, while being rotated, to approach the upper surface of the top manuscript and, when the electromagnetic clutch disconnects, the pickup roller, while stopping to rotate, is raised away from the upper surface of the top manuscript by an amount smaller than a lowering amount. Between an electromagnetic clutch-side engaging portion and a pickup roller-side engaging portion of a torque limiter, an elastic member is arranged that suppresses drive power load fluctuation produced by disconnection/connection of the electromagnetic clutch and applies a biasing force in a direction to raise the pickup roller when the electromagnetic clutch disconnects.
Inventors:
Yasumasa Morimoto
Masato Tampeira
Masato Tampeira
Application Number:
JP2004044850A
Publication Date:
January 30, 2008
Filing Date:
February 20, 2004
Export Citation:
Assignee:
Sharp Corporation
International Classes:
B65H3/06; B41J11/00; B41J13/00; G03G15/00; H04N1/00
Domestic Patent References:
| JP5301645A |
Attorney, Agent or Firm:
Yoshiro Kurauchi