Patent ID: 9274566
Filing Date: 2016-03-01
CPC Classification: G06F,Y10T

Claim Text:
1. A dual-shaft hinge usable in a flip-up electronic product, comprising: a female hinge member, a hinge shaft set, and a sliding block, wherein said hinge shaft set comprises a first hinge shaft and a second hinge shaft, said first hinge shaft comprising: said second hinge shaft comprising: wherein said second guide portion defines a first peripheral wall and a second peripheral wall respectively disposed at two opposite lateral sides relative to said position-limit groove, said sliding block being disposed between said first guide portion and said second guide portion of said hinge shaft set, and wherein: said sliding block comprises a block body, a first protrusion located at one side thereof and coupled to said propelling groove of said hinge shaft set, and a second protrusion located at an opposite side thereof and coupled to said position-limit groove of said hinge shaft set, a width of said first peripheral wall and a width of said second peripheral wall being larger than a width of said second protrusion so that when said second protrusion abuts against said first peripheral wall, a displacement space is created between said second protrusion and said second peripheral wall, such that when a biasing force is applied to said first hinge shaft, said first hinge shaft is rotated and said propelling groove is forced to propel said first protrusion, thereby causing movement of said sliding block toward said second peripheral wall, and when said second protrusion abuts against said second peripheral wall, a position-limit space is created between said second protrusion and said first peripheral wall, such that when a biasing force is applied to said first hinge shaft, said first hinge shaft is prevented from rotating, and said first hinge shaft is forced to turn said sliding block about said second hinge shaft to further cause said second protrusion to be moved toward said first peripheral wall.