CH668528GA3 - - Google Patents
Download PDFInfo
- Publication number
- CH668528GA3 CH668528GA3 CH135386A CH135386A CH668528GA3 CH 668528G A3 CH668528G A3 CH 668528GA3 CH 135386 A CH135386 A CH 135386A CH 135386 A CH135386 A CH 135386A CH 668528G A3 CH668528G A3 CH 668528GA3
- Authority
- CH
- Switzerland
- Prior art keywords
- drive
- watch
- bearing
- cut
- stepping motor
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G04—HOROLOGY
- G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
- G04B31/00—Bearings; Point suspensions or counter-point suspensions; Pivot bearings; Single parts therefor
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Electromechanical Clocks (AREA)
- General Details Of Gearings (AREA)
Abstract
A watch drive has an electric stepping motor and other drive elements supported between opposite drive plates. A tubular center bearing is mounted on one of the drive plates and carries a watch hand shaft to which motion is transmitted from the stepping motor by way of an intermediate gear which is mounted on an intermediate gear shaft supported in a bearing projection extending from a mounting collar of the tubular center bearing. The bearing projection is disposed adjacent a cut-out area of the drive plate which cut-out area is sufficiently large to permit insertion of the small drive elements between the drive plates during assembly of the watch drive and to provide for the small size of the watch drive.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3512701A DE3512701C1 (en) | 1985-04-09 | 1985-04-09 | Clockwork axle bearing |
Publications (1)
Publication Number | Publication Date |
---|---|
CH668528GA3 true CH668528GA3 (en) | 1989-01-13 |
Family
ID=6267539
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH135386A CH668528GA3 (en) | 1985-04-09 | 1986-04-07 |
Country Status (3)
Country | Link |
---|---|
US (1) | US4652142A (en) |
CH (1) | CH668528GA3 (en) |
DE (1) | DE3512701C1 (en) |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH355090A (en) * | 1959-05-21 | 1961-06-15 | Fontainemelon Horlogerie | Timepiece bearing |
CH376061A (en) * | 1961-03-02 | 1964-04-30 | Derby S A | Watch caliber |
JPS51134816A (en) * | 1975-05-16 | 1976-11-22 | Seiko Instr & Electronics Ltd | Converter for an electronic clock |
-
1985
- 1985-04-09 DE DE3512701A patent/DE3512701C1/en not_active Expired
-
1986
- 1986-04-07 CH CH135386A patent/CH668528GA3/de unknown
- 1986-04-09 US US06/849,720 patent/US4652142A/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
DE3512701C1 (en) | 1986-04-03 |
US4652142A (en) | 1987-03-24 |
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