The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Aug. 19, 2014

Filed:

Oct. 12, 2012
Applicant:

Sharp Kabushiki Kaisha, Osaka, JP;

Inventors:

Hiroyuki Nagao, Osaka, JP;

Kazuhisa Yoneda, Osaka, JP;

Shinichiroh Hiraoka, Osaka, JP;

Yasushi Nakamura, Osaka, JP;

Hidenobu Mandai, Osaka, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02P 1/00 (2006.01); H02P 3/00 (2006.01); H02P 3/20 (2006.01);
U.S. Cl.
CPC ...
Abstract

An opening and closing device includes a cover gear, a driving source, a cover, a biasing element, and a control portion. The cover gear is rotatably supported in both forward and backward directions. The driving source selectively provides rotation to the cover gear in both the forward and backward directions. The cover is rotatably supported to allow motion in both the forward and backward directions between first and second positions. The biasing element transmits the rotation of the cover gear to the cover while biasing the cover in a predetermined direction from the first position to the second position. The control portion stops the rotation of the driving source, in a case in which the driving source is rotated to move the cover in the predetermined direction, when the cover gear rotates in the predetermined direction by a predetermined angle after the cover has reached the second position.


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