A hinge assembly (200) for joining a cover section (110) to a body section (120) of a foldable electronic device (100) includes a main shaft (10), a rotating member (20), a sliding member (30), and a spring (40). The main shaft has a fixing portion (12) at one end, a deformed shaft portion (14) at i
A hinge assembly (200) for joining a cover section (110) to a body section (120) of a foldable electronic device (100) includes a main shaft (10), a rotating member (20), a sliding member (30), and a spring (40). The main shaft has a fixing portion (12) at one end, a deformed shaft portion (14) at its central section, and a distal shaft portion (16) at the other end. The rotating member receives the distal shaft portion, and the rotating member includes an engaging portion (24). The sliding member engages with the deformed shaft portion. The sliding member has a deformed hole (34), engaging with the engaging portion of the rotating member. The spring surrounds the main shaft and elastically biases between the sliding member and the fixing portion. The hinge assembly is modularized, easy to install, and low in cost.
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We claim: 1. A hinge assembly, comprising: a main shaft having a fixing portion at one end thereof, a flat-sided shaft portion at a central section thereof, and a distal shaft portion at the other end thereof; a rotating member being rotatably placed around the distal shaft portion of the main shaf
We claim: 1. A hinge assembly, comprising: a main shaft having a fixing portion at one end thereof, a flat-sided shaft portion at a central section thereof, and a distal shaft portion at the other end thereof; a rotating member being rotatably placed around the distal shaft portion of the main shaft, the rotating member including an engaging portion; a sliding member engaging with the flat-sided shaft portion of the main shaft, the sliding member having an engaging hole and an elliptical hole communicating with each other, the engaging hole non-rotatably receiving the flat-sided shaft portion, the elliptical hole thereof rotatably receiving the engaging portion of the rotating member; and a spring rolled around the main shaft, the spring being positioned and configured for maintaining the engagement between the sliding member and the rotating member. 2. The hinge assembly as claimed in claim 1, wherein the engaging portion of the rotating member is a twisted cylinder. 3. The hinge assembly as claimed in claim 2, wherein the twisted cylinder includes two ellipses and an exterior twisted surface formed between the two ellipses. 4. The hinge assembly as claimed in claim 1, wherein the rotating member further includes a latching portion, the latching portion being connected with the engaging portion of the rotating member. 5. The hinge assembly as claimed in claim 4, wherein at least one protrusion is formed at a peripheral wall of the latching portion. 6. The hinge assembly as claimed in claim 1, wherein the fixing portion of the main shaft is a cuboid. 7. The hinge assembly as claimed in claim 1, wherein the flat-sided shaft portion of the main shaft has two opposite flat surfaces. 8. The hinge assembly as claimed in claim 1, wherein the distal shaft portion has a loop groove defined at one end thereof, the loop groove receiving a locking member therein. 9. The hinge assembly as claimed in claim 1, further comprising a locking member, the locking member is locked at one end of the distal shaft portion of the main shaft. 10. The hinge assembly as claimed in claim 9, wherein the locking member has a C configuration. 11. A foldable electronic device having at least two components hinged together by a hinge assembly, the hinge assembly comprising: a main shaft having a fixing portion at one end thereof, a flat-sided shaft portion at a central section thereof, and a distal shaft portion at the other end thereof; a rotating member rotatably engaging with the distal shaft portion of the main shaft, the rotating member including an engaging portion; a sliding member engaging with the flat-sided shaft portion of the main shaft, the sliding member having an engaging hole and an elliptical hole communicating with each other, the engaging hole non-rotatably receiving the flat-sided shaft portion, the elliptical hole thereof rotatably receiving the engaging portion of the rotating member; and a spring rolled around the main shaft, the spring being positioned and configured for maintaining the engagement between the sliding member and the rotating member. 12. The foldable electronic device as claimed in claim 11, wherein the engaging portion of the rotating member is a twisted cylinder. 13. The foldable electronic device as claimed in claim 12, wherein the twisted cylinder includes two ellipses and an exterior twisted surface formed between the two ellipses. 14. The foldable electronic device as claimed in claim 11, further comprising a locking member, the locking member being locked at one end of the distal shaft portion of the main shaft.
Doraiswamy, Sundarraj; Santos, Theodore R.; Larson, David, Preferential deflection hinge mechanism with an idler for foldable portable electronic devices.
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