Timepiece gear, movement and timepiece
The invention provides a timepiece gear, a movement and a timepiece, the timepiece gear can stably maintain sliding torque through a simple structure, and the movement and the timepiece are provided with the timepiece gear. The timepiece gear (15) includes: a shaft member (20) at least a portion of...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | The invention provides a timepiece gear, a movement and a timepiece, the timepiece gear can stably maintain sliding torque through a simple structure, and the movement and the timepiece are provided with the timepiece gear. The timepiece gear (15) includes: a shaft member (20) at least a portion of which is formed of a resin material; and a gear member (30), at least a portion of which is formed of a resin material, and which is provided so as to be slidable with respect to the shaft member (20) in a state in which the shaft member (20) passes through the gear member (30), the gear member (30) having a sliding portion (34) at which the resin material of the gear member (30) and the resin material of the shaft member (20) are in contact with each other in the radial direction. The shaft member (20) has a shaft main body (21) formed from a metal material; and an outer fitting portion (22) formed from a resin material and provided integrally with the shaft main body (21) at the outer peripheral portion of the sh |
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