JPS54112677A - Calendar watch - Google Patents
Calendar watchInfo
- Publication number
- JPS54112677A JPS54112677A JP1945178A JP1945178A JPS54112677A JP S54112677 A JPS54112677 A JP S54112677A JP 1945178 A JP1945178 A JP 1945178A JP 1945178 A JP1945178 A JP 1945178A JP S54112677 A JPS54112677 A JP S54112677A
- Authority
- JP
- Japan
- Prior art keywords
- coupling
- drive wheel
- transmission
- backlash
- wheel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Electromechanical Clocks (AREA)
Abstract
PURPOSE: To reduce wasteful load and prolong battery life by coupling a data feed Geneva gear and transmission member with a slight backlash at the non- transmission time.
CONSTITUTION: When it becomes 0:00 AM upon lapse of 24 hours, the first transmission member 7 which is formed with a Geneva gear and makes backlash coupling with a drive wheel 6 and the protrusion 6a of the drive wheel 6 couple, causing the member 7 to turn. This causes the second transmission member 8 to be turned by the postioning member 9 provided to the member 7, then a display wheel 2 is fed for 1 day. This minute backlash coupling of the drive wheel 6 and member 7 obviates application of wasteful load on the drive system at the times other than the time when the display wheel is fed, prevents the consumption of unnecessary power and prolongs battery life. When the member 8 is manually turned, the member 8 turns by jumping over the member 9, thus the month end correction or other may be accomplished while checking with tactile sensation.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1945178A JPS54112677A (en) | 1978-02-22 | 1978-02-22 | Calendar watch |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1945178A JPS54112677A (en) | 1978-02-22 | 1978-02-22 | Calendar watch |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS54112677A true JPS54112677A (en) | 1979-09-03 |
Family
ID=11999668
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1945178A Pending JPS54112677A (en) | 1978-02-22 | 1978-02-22 | Calendar watch |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54112677A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5886477A (en) * | 1981-11-05 | 1983-05-24 | エタ・ソシエテ・アノニム・フアブリツク・デボ−シエ | Device for intermittently turning and driving member to be driven |
WO1998009200A1 (en) * | 1996-08-30 | 1998-03-05 | Citizen Watch Co., Ltd. | Small electronic apparatus having function display |
JP2015200648A (en) * | 2014-04-03 | 2015-11-12 | ウーテーアー・エス・アー・マニファクチュール・オロロジェール・スイス | Timepiece movement provided with drive mechanism for periodic or intermittent movement of analog indicator |
-
1978
- 1978-02-22 JP JP1945178A patent/JPS54112677A/en active Pending
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5886477A (en) * | 1981-11-05 | 1983-05-24 | エタ・ソシエテ・アノニム・フアブリツク・デボ−シエ | Device for intermittently turning and driving member to be driven |
JPH0337150B2 (en) * | 1981-11-05 | 1991-06-04 | Ebauchesfabrik Eta Ag | |
WO1998009200A1 (en) * | 1996-08-30 | 1998-03-05 | Citizen Watch Co., Ltd. | Small electronic apparatus having function display |
US6185158B1 (en) | 1996-08-30 | 2001-02-06 | Citizen Watch Co., Ltd. | Small electronic apparatus having function display |
JP2015200648A (en) * | 2014-04-03 | 2015-11-12 | ウーテーアー・エス・アー・マニファクチュール・オロロジェール・スイス | Timepiece movement provided with drive mechanism for periodic or intermittent movement of analog indicator |
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