Patent ID: 9464470
Filing Date: 2016-10-11
CPC Classification: E05D,G06F,H04M,H05K

Claim Text:
1. A hinge module, comprising: a first shaft member; a second shaft member with a hollow portion therein, the first shaft member being rotatably inserted in the hollow portion of the second shaft member along an axis; a sleeve, inserted in the hollow portion of the second shaft along the axis, disposed between the first shaft member and the second shaft member, connected to the second shaft member and comprising at least one guide groove, wherein the at least one guide groove extends around the axis and has a first gap along the axis; and at least one first ball, disposed on the first shaft member and rotatably coupled to the guide groove, wherein when the first shaft member is rotated relatively to the second shaft member around the axis, the first shaft member is rotated around the axis relatively to the second shaft member to move along the axis a distance equal to the first gap by rolling the first ball in the guide groove.