Invention Grant
- Patent Title: Electronic timepiece
- Patent Title (中): 电子钟表
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Application No.: US13577082Application Date: 2011-03-14
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Publication No.: US09010997B2Publication Date: 2015-04-21
- Inventor: Tatsuo Sumida , Moto Yamashita
- Applicant: Tatsuo Sumida , Moto Yamashita
- Applicant Address: JP Tokyo JP Tokyo
- Assignee: Citizen Holdings Co., Ltd.,Citizen Watch Co., Ltd.
- Current Assignee: Citizen Holdings Co., Ltd.,Citizen Watch Co., Ltd.
- Current Assignee Address: JP Tokyo JP Tokyo
- Agency: Foley & Lardner LLP
- Priority: JP2010-057760 20100315
- International Application: PCT/JP2011/055930 WO 20110314
- International Announcement: WO2011/115051 WO 20110922
- Main IPC: G04B37/04
- IPC: G04B37/04 ; G04C3/14 ; G04D5/00

Abstract:
Lubricating apparatuses (10, 20, 30, 40) that support the axes of a stator guide (70) and a rotor (50) fit into an opening of a stator (60) are separate components and by fitting the stator guide (70) and lubricating apparatuses (10, 20, 30, 40) into the cylindrically shaped opening of a constant diameter disposed in a bottom plate (80), a bearing can be configured that aligns the central axis of the opening of the stator (60) and the rotational axis of the rotor (50) with high precision. Additionally, the structure of the lubricating apparatus (10, 20, 30, 40) is simplified and configures an electronic timepiece that can use the bearing-less stator (60).
Public/Granted literature
- US20120300597A1 ELECTRONIC TIMEPIECE Public/Granted day:2012-11-29
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