US 12,339,713 B2
Portable information handling system hinge
Mark Andrew Schwager, Cedar Park, TX (US); and Kai-Yuan Cheng, Taipei (TW)
Assigned to Dell Products L.P., Round Rock, TX (US)
Filed by Dell Products L.P., Round Rock, TX (US)
Filed on Jul. 27, 2022, as Appl. No. 17/874,391.
Prior Publication US 2024/0036618 A1, Feb. 1, 2024
Int. Cl. G06F 1/16 (2006.01)
CPC G06F 1/1681 (2013.01) [G06F 1/1616 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A hinge for a portable information handling system, comprising:
a cylindrical shaft, the cylindrical shaft including an axially extending substantially flat section, the axially extending substantially flat section extending along a top portion of the cylindrical shaft when the portable information handling system is in a closed orientation; and,
a coil portion, the coil portion having a largely cylindrical interior edge, the largely cylindrical interior edge including a substantially flat section, the substantially flat section of the coil portion extending along a top portion of the coil portion, the substantially flat section of the coil portion and the substantially flat section of the cylindrical shaft being aligned when a relative rotation of the hinge is between zero and five degrees; and wherein
interaction between the substantially flat section of the cylindrical shaft and the substantially flat section of the coil portion provide a torque-release function, the torque-release function being generated via a geometry interaction between the substantially flat section of the cylindrical shaft and the substantially flat section of the coil portion; and wherein
the cylindrical shaft includes axially extending substantially flat sections along both sides of the shaft;
at zero to five degrees, the substantially flat sections on the cylindrical shaft and relative substantially flat sections of the coil portion are aligned, at greater than twenty five degrees, the substantially flat sections on the cylindrical shaft and relative substantially flat sections of the coil portion are no longer aligned and between five and twenty five degrees, transition of the substantially flat sections on the cylindrical shaft and the relative substantially flat sections of the coil portion generate different torque profiles during open and closed modes of operation.