Passive haptic interface
US11977406B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 6, 2020 |
| Grant date | May 7, 2024 |
| Priority date | — |
| Expiry date | Aug 6, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H2003/506
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A passive haptic interface includes a first element which is rotatably movable about an axis or translatably movable along an axis, the first movable element rotating or moving opposite a second fixed element. The first movable element has a first plurality of magnetic poles spaced periodically at a pole pitch Ps and in the direction of movement, and the second fixed element has a second plurality of magnetic poles periodically spaced at a pole pitch Pr and in the direction of movement, where Ps and Pr are different numbers. A periodic stress is created by the magnetic interaction between the first movable element and the second fixed element in a period Pt. The pole pitches Ps and Pr are chosen such that Pt is strictly less than the smallest of the pitches Ps and Pr.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.