Patent ID: 8139994
Filing Date: 2012-03-20
Classification: E05F,E05Y,G03G,Y10T

Abstract:
1. An automatic original cover closer for an automatic opening and closing of an original cover with respect to a main body of an office equipment, said automatic original cover closer comprising: hinge portions and a driving portion to transfer a driving power to the hinge portions; said hinge portions comprising: a mounting member having a bottom plate and two side plates extending from both side portions of the bottom plate upward in the orthogonal direction to the bottom plate respectively and attached said bottom plate to an upper portion of the main body; and a supporting member including a top plate and both side plates extending downward in a direction perpendicular to the top plate from both side portions of the top plate respectively, with said both side plates being axially supported via a rotation shaft on said both side plates of said mounting member so as to be rotatable with the rotation shaft; said driving portion comprising: a drive case attached to a mounting plate, said mounting plate being attached to either one of said side plates of said mounting member; a positively and reversely rotatable drive motor attached to the drive case; a driving shaft attached to said drive case so as to be co-rotatable with said rotation shaft; and a power transferring mechanism attached to said drive case for decelerating and transferring a rotary driving power of said drive motor to said driving shaft; wherein said rotation shaft is constituted of a hinge shaft portion and a driving shaft portion, said hinge shaft portion having a first portion and a second portion engagibly inserted into shaft engaging members that are attached to said side plates of said supporting member, said hinge shaft portion is rotatably inserted in shaft bearings attached to said side plates of said mounting member, said driving shaft portion being coaxially connected with said driving shaft so that rotary driving power of said drive motor is transferred to said supporting member via said driving shaft and said rotation shaft.