Patent ID: 8107995

Claim:
A biaxial hinge mechanism comprising: a housing; first and second horizontal axis portions inserted into the housing and provided on a horizontal axis; a vertical axis portion inserted into the housing and provided on a vertical axis which is substantially orthogonal to the horizontal axis, wherein the first and second horizontal axis portions facilitate the biaxial hinge mechanism to rotate about the horizontal axis, wherein the vertical axis portion facilitates the biaxial hinge mechanism to rotate about the vertical axis, and wherein the housing comprises: a first through hole through which the first horizontal axis portion is inserted into and extends outside the housing; an opening which is opposite the first through hole, wider than a widest portion of the first horizontal axis portion, and wider than a widest portion of the second horizontal axis portion that is located inside the housing, wherein the second horizontal axis portion is inserted into and extends outside the housing through the opening; and a second through hole through which the vertical axis portion is inserted into and extends outside the housing, wherein said vertical axis portion has a vertical axis side surface disposed in contact with a horizontal axis end of said first horizontal axis portion and a horizontal axis end of said second horizontal axis portion, wherein two substantially opposite sides of the vertical axis side surface of said vertical axis portion are cut out, wherein a groove is provided on the horizontal axis end of said first horizontal axis portion which is in contact with the vertical axis portion, wherein when the groove is orthogonal to the cut-out portion of said vertical axis portion, rotation of the vertical axis portion is regulated, and when the groove is brought into parallel to the cut-out portion of said vertical axis portion, the regulation on rotation of said vertical axis portion canceled, wherein two gill-like members for limiting a rotation angle of said vertical axis portion are provided in said vertical axis portion, and a protrusion which interferes with the gill-like members according to a rotation angle of said vertical axis portion is provided in said housing, wherein a taper with the center line of the horizontal axis as a boundary is formed in the groove of said first horizontal axis portion, wherein a diameter of the portion of the first and second horizontal axis portions located in said housing is larger than a diameter of the portion extended from said housing, wherein said groove is disposed out of said horizontal axis.