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US 2023/0010996 A1Published application
Timepiece
AssigneeSeiko Epson Corporation
InventorYoshio MISHIMA
Life of this patent
Estimating the term…
Abstract
A timepiece includes an inner rotating ring including a plurality of teeth portions; a driving crown including a head portion and a shaft portion; and a driving wheel including a hole portion engageable with and disengageable from the shaft portion, and configured to mesh with the teeth portions. The hole portion includes a plurality of protruding portions disposed at intervals of an angle smaller than 90° and protruding toward a rotation axis of the shaft portion.
Claims7
A timepiece comprising:
- an inner rotating ring including a plurality of teeth;
- an operation part including a head and a shaft;
- and
- a driving wheel including a hole engageable with and disengageable from the shaft, and configured to mesh with the teeth, wherein
- the hole includes a plurality of projections disposed at intervals of an angle smaller than 90° and protruding toward a rotation axis of the shaft.
2 more elements
Dependencies are inferred from the claim text.