JPS5485764A - Low load calendar structure - Google Patents
Low load calendar structureInfo
- Publication number
- JPS5485764A JPS5485764A JP15396877A JP15396877A JPS5485764A JP S5485764 A JPS5485764 A JP S5485764A JP 15396877 A JP15396877 A JP 15396877A JP 15396877 A JP15396877 A JP 15396877A JP S5485764 A JPS5485764 A JP S5485764A
- Authority
- JP
- Japan
- Prior art keywords
- calendar
- jumper
- wheel
- driving
- display 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 load by calendar mechanism by providing a wheel which engages to the wheel driving the calendar display wheel of an analog type watch and rotates at the same rotating speed and providing a jumper releasing member to this wheel.
CONSTITUTION: A calendar driving pawl 8 starts acting on the tooth part 1a of a calendar display wheel 1 from about 2 hours before the calendar switching time of the calendar to give clockwise rotation to the calendar display wheel. On the other hand, a jumper driving pawl 11 starts acting upon the end 4b of a jumper 4 before the calendar driving pawl 8 starts acting upon the calendar driving wheel 1 to raise the jumper and begin to release the force acting upon the calendar display wheel 1. Further as the jumper driving pawl 11 rotates, its engagement with the jumper end 4b is released and the defining part 4a of the jumper is rotated in the direction of the tooth part 1a of the calendar display wheel by the action of a jumper spring 5 to perform positioning and position fixing and this completes calendar feeding.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15396877A JPS5485764A (en) | 1977-12-20 | 1977-12-20 | Low load calendar structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15396877A JPS5485764A (en) | 1977-12-20 | 1977-12-20 | Low load calendar structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5485764A true JPS5485764A (en) | 1979-07-07 |
Family
ID=15573998
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15396877A Pending JPS5485764A (en) | 1977-12-20 | 1977-12-20 | Low load calendar structure |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5485764A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009198437A (en) * | 2008-02-25 | 2009-09-03 | Citizen Watch Co Ltd | Display device |
| CN106970514A (en) * | 2016-01-13 | 2017-07-21 | 精工电子有限公司 | Position linkage, movement and clock and watch |
-
1977
- 1977-12-20 JP JP15396877A patent/JPS5485764A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009198437A (en) * | 2008-02-25 | 2009-09-03 | Citizen Watch Co Ltd | Display device |
| CN106970514A (en) * | 2016-01-13 | 2017-07-21 | 精工电子有限公司 | Position linkage, movement and clock and watch |
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