JPS55122178A - Hour indication correction mechanism for timepiece - Google Patents
Hour indication correction mechanism for timepieceInfo
- Publication number
- JPS55122178A JPS55122178A JP2961079A JP2961079A JPS55122178A JP S55122178 A JPS55122178 A JP S55122178A JP 2961079 A JP2961079 A JP 2961079A JP 2961079 A JP2961079 A JP 2961079A JP S55122178 A JPS55122178 A JP S55122178A
- Authority
- JP
- Japan
- Prior art keywords
- wheel
- hour
- indication
- recesses
- cylinder
- 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
- 230000008878 coupling Effects 0.000 abstract 1
- 238000010168 coupling process Methods 0.000 abstract 1
- 238000005859 coupling reaction Methods 0.000 abstract 1
Landscapes
- Electromechanical Clocks (AREA)
Abstract
PURPOSE: To correct only hour indication without affecting other time indication, by elastically coupling an hour wheel to a cylinder wheel provided with an hour hand, by small balls press-fitted in the recesses of the hour wheel.
CONSTITUTION: A plurality of recesses 23a are concentrically provided on an hour wheel 23 which is rotated in connection with a minute wheel. The hour wheel 23 and a cylinder wheel 25 are elastically coupled to each other by small balls 27 which are press-fitted in the recesses 23a by a leaf spring 28 on the cylinder wheel 25 provided with an hour hand 26. Hour indication is performed by the hour hand 26 depending on the rotation of the hour wheel 23. When the cylinder wheel 25 is forcibly rotated, the locking force of an intermediate wheel 22 for driving the hour wheel 23 is stronger than that of the spring 28 and the small balls 27. As a result, only the cylinder wheel is rotated without influencing the hour wheel 23 until the small balls 27 are fitted in the next recesses 23b. Thus, only the hour indication can be corrected without affecting the indication of time such as minute, second or the like.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2961079A JPS55122178A (en) | 1979-03-14 | 1979-03-14 | Hour indication correction mechanism for timepiece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2961079A JPS55122178A (en) | 1979-03-14 | 1979-03-14 | Hour indication correction mechanism for timepiece |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS55122178A true JPS55122178A (en) | 1980-09-19 |
Family
ID=12280827
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2961079A Pending JPS55122178A (en) | 1979-03-14 | 1979-03-14 | Hour indication correction mechanism for timepiece |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS55122178A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016075677A (en) * | 2014-10-02 | 2016-05-12 | 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 | Engageable/disengageable coaxial wheel for timepiece movement |
| CN110568747A (en) * | 2018-06-06 | 2019-12-13 | 朗格钟表有限公司 | Drive device |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4833857A (en) * | 1971-01-28 | 1973-05-14 |
-
1979
- 1979-03-14 JP JP2961079A patent/JPS55122178A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4833857A (en) * | 1971-01-28 | 1973-05-14 |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016075677A (en) * | 2014-10-02 | 2016-05-12 | 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 | Engageable/disengageable coaxial wheel for timepiece movement |
| CN110568747A (en) * | 2018-06-06 | 2019-12-13 | 朗格钟表有限公司 | Drive device |
| JP2019215335A (en) * | 2018-06-06 | 2019-12-19 | ランゲ ウーレン ゲーエムベーハー | Drive device |
| CN110568747B (en) * | 2018-06-06 | 2021-04-02 | 朗格钟表有限公司 | Drive device |
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