Patent ID: 6593999
Filing Date: 2003-07-15
Classification: G03G,H04N

Abstract:
An original cover closer, comprised of a mounting member, which has at least a mounting base and side plates, which are raised from both sides of the mounting base, and has said mounting base mounted to a main device unit side, a supporting member, which has at least a back plate and side plates, which are bent from the back plate, and has one end of each of the side plates being rotatably mounted via a first hinge pin to the corresponding side plate of said mounting member, a lifting member, which has a back plate, to which a document pressure plate is mounted, side plates and a top plate, which are bent from the back plate, and is axially mounted via a second hinge pin to the free end sides of the respective side plates of said supporting member in a manner enabling the respective side plates thereof to rotate in a direction that differs from said supporting member, a pressure bearing pin, which is axially amounted between the respective side plates at said mounting member side at positions that differ from those of said first hinge pin, a cam slider, which is fitted inside the supporting member in a manner enabling sliding and with the cam part thereof being in contact with the pressure bearing pin, and a coil spring, which is resiliently installed between said cam slider and said lifting member and is thereby made to urge said supporting member at least in the direction of opening of the original cover while rotatingly urging said lifting member in the direction that overlaps the supporting member, said original cover closer being characterized in that the coil spring is bent in advance in the direction of rotation of said lifting member.