Electronically controlled variable hinge torque
US10852765B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 17, 2019 |
| Grant date | Dec 1, 2020 |
| Priority date | — |
| Expiry date | Jan 17, 2039 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE05Y2999/00
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A portable information handling system rotationally couples housing portions with a hinge having an adjustable friction device that adjusts a torque resisting rotation of the housing portions between alternate settings by sending an electronic pulse to an electropermanent magnet. For instance, activation of a magnetic field pulls a lever that compresses compression discs coupled to a hinge axle to increase torque, such as to hold the housing portions in position. An electronic pulse deactivates the magnetic field when an end user desires to rotate the housing portions, such as may be indicated by an end user touch at a housing portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.