Pallet lever mechanism for timepiece escapement
US9310771B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 6, 2013 |
| Grant date | Apr 12, 2016 |
| Priority date | — |
| Expiry date | Nov 6, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG04B43/00
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A pallet lever mechanism for an escapement mechanism including a structure carrying a balance and an escape wheel, the pallet lever including pallet stones cooperating with the escape wheel, and a flexible, multistable element, and the pallet lever cooperates with the balance with horns of a first portion of the pallet lever connected by one such flexible element to the structure or to a second portion of the pallet lever carrying the pallet stones connected by one such flexible element to the fixed structure or to the first portion. One flexible element includes a prestressed beam buckled in an S or Z shape, the pallet lever mechanism including a pivot forcing the beam to have a node at the middle thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.