Patent ID: 7672636
Filing Date: 2010-03-02
Classification: H04N

Abstract:
1. An image reader comprising: a main body having a document support surface for supporting an original document; and a document cover having an edge portion rotatably supported on the main body and capable of rotating between a closed position for covering the document support surface and an open position for exposing the document support surface, wherein the document cover comprises: the first plurality of engaging protrusions protrude from at least one of the main cover body and the document pressing plate in a direction parallel to the pressing surface; the first plurality of engagement receiving parts provided on the other of the main cover body and the document pressing plate are formed with through-holes; and the first plurality of engaging protrusions are engaged with the first plurality of engagement receiving parts through insertion into the through-holes of the first engagement receiving parts; the document pressing plate being formed in the shape of a tetragon in which all corner angles are right angles and in which a pair of first sides extend parallel to each other in a first direction and a pair of second sides extend parallel to each other in a second direction orthogonal to the first direction; the first plurality of engaging protrusions include two protrusions protruding from one of the second sides in the first direction and one protrusion protruding from one of the first sides in the second direction, respectively; the first plurality of engagement receiving parts are formed of two receiving parts for engaging with the two first engaging protrusions; the document pressing plate is restricted from moving in the second direction relative to the main cover body by the engagement of the first engaging protrusion protruding from one of the second sides in the first direction with the first engagement receiving part for engaging with the first engaging protrusion protruding from one of the second sides in the first direction; and the document pressing plate is restricted from moving in the first direction relative to the main cover body by the engagement of the first engaging protrusion protruding from one of the first sides in the second direction with the first engagement receiving part for engaging with the first engaging protrusion protruding from one of the first sides in the second direction.