Patent ID: 7150075
Filing Date: 2006-12-19
Classification: E05D,E05F,E05Y,H04M,Y10T

Abstract:
1. A hinge for a two-fold type, portable terminal coupling a first member having a keyboard portion and a second member having a display portion to each other in a manner capable of opening/closing the first and second members in a vertical direction and capable of rotating the first and second members in a horizontal direction at a predetermined open angle, comprising: a cylindrical case cover having a partition wall in a center portion thereof; a first hinge shaft which passes through the partition wall of said case cover and extends in an axial core direction of said case cover so as to be restricted from moving in a first axial direction and so as to allow said case cover to rotate around an axis thereof, and which has a first escape recessed portion provided in a portion thereof passing through the partition wall; a case in which said first hinge shaft passes through in an axial core portion thereof in the first axial direction and which is fixed to a first free end side of said first hinge shaft; a vertical rotation control means, which is provided between said case and said case cover and constituted of a first cam mechanism, for controlling vertical rotation of said case cover; a second hinge shaft having a second escape recessed portion and rotatably attached to the partition wall, with the second escape recessed portion being in contact with and crossing the first escape recessed portion of said first hinge shaft; a mounting member which has a mounting cylindrical portion and a mounting piece attached to the second member and is provided on a second free end side of said second hinge shaft to be rotatable at a predetermined horizontal rotation angle, said second hinge shaft passing through the mounting cylindrical portion in a second axial direction, said mounting member being restricted from disengaging so as to rotate together with said second hinge pin, and one end side of said mounting member abutting on said case cover; and a horizontal rotation control means, which is provided between said mounting member and said case cover and constituted of a second cam mechanism, for controlling horizontal rotation of said case cover, wherein one end of said case cover is rotatably supported by one of attaching portions provided on both sides of an end portion of the first member, said case is inserted and fitted in a mounting portion provided in the other attaching portion of the first member, said mounting member is fixed to the second member, and said first hinge shaft and said second hinge shaft have the escape recessed portions in a portion where the said first hinge shaft and said second hinge shaft are in contact with each other and cross each other, so that from a closing state to a predetermined open angle of the first member and the second member, said first hinge shaft engages with the second escape recessed portion of said second hinge shaft to restrain the rotation of said second hinge shaft, and at the predetermine open angle, the second escape recessed portion of said second hinge shaft is at a position facing the first escape recessed portion of said first hinge shaft to allow the second hinge shaft to rotate.