US Patent 8024840 Hinge

A hinge includes a bracket, a shaft, and a first interfering member. The shaft includes a post, and a stopper protruded thereon. The post is secured to the first interfering member. The bracket defines a pivoting hole. The bracket includes a restricting block, and a second interfering member located in the pivoting hole of the bracket opposite to the restricting block. The first interfering member together with the post rotates in the pivoting hole until the restricting block resists against the stopper of the shaft to limit a rotational range of the post. The second interfering member engages with the first interfering member to improve the rotation of the post in the pivoting hole of the bracket.