Timepiece movement and timepiece
US11022940B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 21, 2018 |
| Grant date | Jun 1, 2021 |
| Priority date | — |
| Expiry date | Aug 7, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG04B35/00
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A timepiece movement includes second, minute, and hour hand wheels with second, minute, and hour hand arbors; a 24-hour hand wheel with a 24-hour hand arbor; and a first to third guides that guide an arbor to which a hand attaches. The minute, hour, and 24-hour hand arbors have tubular configurations and are disposed coaxially to the second hand arbor. The minute hand arbor has a diameter greater than the second hand arbor, the hour hand arbor has a diameter greater than the minute hand arbor, and the 24-hour hand arbor has a diameter greater than the hour hand arbor. The first guide is between the second hand arbor and the minute hand arbor, the second guide is between the minute hand arbor and the hour hand arbor, and the third guide is between the hour hand arbor and the 24-hour hand arbor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.