US 12,392,183 B2
Inertial lock friction hinge
Benjamin Anderson, Scandia, MN (US); George Larson, Roseville, MN (US); and Horace Beale, Bayport, MN (US)
Assigned to Reell Precision Manufacturing Corporation, St. Paul, MN (US)
Appl. No. 18/036,082
Filed by Reell Precision Manufacturing Corporation, St. Paul, MN (US)
PCT Filed Nov. 11, 2021, PCT No. PCT/US2021/059023
§ 371(c)(1), (2) Date May 9, 2023,
PCT Pub. No. WO2022/103989, PCT Pub. Date May 19, 2022.
Claims priority of provisional application 63/112,366, filed on Nov. 11, 2020.
Prior Publication US 2024/0018815 A1, Jan. 18, 2024
Int. Cl. E05D 11/08 (2006.01)
CPC E05D 11/082 (2013.01) 20 Claims
OG exemplary drawing
 
1. An inertial lock friction hinge system comprising:
a first hinged element;
a second hinged element;
a shaft assembly coupled to the first hinged element, the shaft assembly having a shaft assembly recess and a shaft;
a friction assembly coupled to the second hinged element, the friction assembly having a friction assembly recess;
wherein the shaft assembly and the friction assembly are rotatably coupled for relative frictional rotation about the shaft;
a restraining component positioned within the inertial lock friction hinge system such that when the restraining component is fully contained within one of the friction assembly recess and the shaft assembly recess the shaft assembly and the friction assembly are allowed to rotate relative to each other under friction such that the inertial lock friction hinge system is in an unlocked condition, and the restraining component positioned such that when the restraining component is at least partially within both of the friction assembly recess and the shaft assembly recess the shaft assembly and the friction assembly are prevented from relative rotation such that the inertial lock friction hinge system is in a locked condition, wherein the restraining component moves radially relative to the shaft.