GB1096039A - Improvements in and relating to escapement mechanisms for timepieces - Google Patents
Improvements in and relating to escapement mechanisms for timepiecesInfo
- Publication number
- GB1096039A GB1096039A GB744866A GB744866A GB1096039A GB 1096039 A GB1096039 A GB 1096039A GB 744866 A GB744866 A GB 744866A GB 744866 A GB744866 A GB 744866A GB 1096039 A GB1096039 A GB 1096039A
- Authority
- GB
- United Kingdom
- Prior art keywords
- wheel
- escape wheel
- lever
- plate
- magnet
- 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.)
- Expired
Links
Classifications
-
- G—PHYSICS
- G04—HOROLOGY
- G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
- G04C3/00—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means
- G04C3/04—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means wherein movement is regulated by a balance
- G04C3/06—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means wherein movement is regulated by a balance using electromagnetic coupling between electric power source and balance
- G04C3/065—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means wherein movement is regulated by a balance using electromagnetic coupling between electric power source and balance the balance controlling gear-train by means of static switches, e.g. transistor circuits
- G04C3/066—Constructional details, e.g. disposition of coils
-
- 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
- G04B15/00—Escapements
- G04B15/06—Free escapements
- G04B15/08—Lever escapements
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Electromagnetism (AREA)
- Power Engineering (AREA)
- Magnetic Treatment Devices (AREA)
- Dynamo-Electric Clutches, Dynamo-Electric Brakes (AREA)
Abstract
1,096,039. Clocks and watches. CITIZEN TOKEI KABUSHIKI KAISHA. Feb. 21, 1966 [Feb. 19, 1965 (2)], No. 7448/66. Heading G3T. An escapement mechanism for a watch comprises a lever 11 pivoted on an arbor 33 to oscillate between stop positions defined by pins 12, 13, an entry pallet 18 and an exit pallet 19 fixed to the lever, an escape wheel 5 co-operating with the pallets and a permanent magnet 8 placed in a position substantially diametrically opposite the lever with respect to the escape wheel. The function of the magnet is to exert a torque on the escape wheel so that the lever is urged into locked positions at the end of each intermittent stepped rotation of the escape wheel as illustrated in Fig. 2 and Fig. 5 (not shown) and also to resist reverse rotation of the wheel at each release of the entry and exit pallets. For this purpose, a traction wheel 7 made of a magnetizable material such as iron and having teeth 7a is spot welded to the escape wheel. A roller (2), Fig. 1 (not shown) having a flange 2a and an impulse pin 3 is attached to a balance wheel (1) which is of the conventional type used in electronic time pieces in which magnets (1a) co-operate with drive and search coils (not shown) to maintain the oscillation. The impulse pin strikes forks 14, 15 to produce oscillations of the lever 11, the pallets 18, 19 transmitting an intermittent drive to the escape wheel 5. The interaction of the magnet 8 with the iron teeth 7a ensures correct location of the escape wheel at each stopping point of its intermittent rotation. In a modification, Fig. 7 (not shown) two permanent magnets (8a), (8b) are mounted on a plate (43) and their position with respect to the teeth 7a may be adjusted by pivoting the plate about the escape wheel spindle (35). A screw (44) engaging a slot (45) of the plate locks the plate in position. In a second modification, Figs. 8, 9 (not shown), the jaws of a yoke-shaped magnet (8b) are mounted opposite holes (49) cut in the escape wheel and a traction wheel is not required. The holes (49) may be extended to the inner rim of the escapement wheel to form recesses (51) as illustrated in Fig. 10 (not shown).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP962965 | 1965-02-19 | ||
| JP1322965 | 1965-02-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1096039A true GB1096039A (en) | 1967-12-20 |
Family
ID=26344389
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB744866A Expired GB1096039A (en) | 1965-02-19 | 1966-02-21 | Improvements in and relating to escapement mechanisms for timepieces |
Country Status (2)
| Country | Link |
|---|---|
| DE (1) | DE1523711C3 (en) |
| GB (1) | GB1096039A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3628327A (en) * | 1969-04-14 | 1971-12-21 | Suwa Seikosha Kk | Clubtooth lever escapement |
| CN110928170A (en) * | 2018-09-19 | 2020-03-27 | 斯沃奇集团研究和开发有限公司 | Optimized magneto-mechanical timepiece escapement |
| CN112177869A (en) * | 2020-09-29 | 2021-01-05 | 重庆科技学院 | Random environmental energy collecting and stable releasing device for friction nano generator |
-
1966
- 1966-02-21 DE DE19661523711 patent/DE1523711C3/en not_active Expired
- 1966-02-21 GB GB744866A patent/GB1096039A/en not_active Expired
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3628327A (en) * | 1969-04-14 | 1971-12-21 | Suwa Seikosha Kk | Clubtooth lever escapement |
| CN110928170A (en) * | 2018-09-19 | 2020-03-27 | 斯沃奇集团研究和开发有限公司 | Optimized magneto-mechanical timepiece escapement |
| CN110928170B (en) * | 2018-09-19 | 2021-08-27 | 斯沃奇集团研究和开发有限公司 | Optimized magneto-mechanical timepiece escapement |
| US11567456B2 (en) | 2018-09-19 | 2023-01-31 | The Swatch Group Research And Development Ltd | Optimised magneto-mechanical timepiece escapement mechanism |
| CN112177869A (en) * | 2020-09-29 | 2021-01-05 | 重庆科技学院 | Random environmental energy collecting and stable releasing device for friction nano generator |
| CN112177869B (en) * | 2020-09-29 | 2024-01-30 | 重庆科技学院 | Random environmental energy collecting and stable releasing device for friction nano generator |
Also Published As
| Publication number | Publication date |
|---|---|
| DE1523711A1 (en) | 1969-07-10 |
| DE1523711B2 (en) | 1973-07-26 |
| DE1523711C3 (en) | 1974-02-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB1261425A (en) | Damage-resistant mechanical metronome | |
| GB1453902A (en) | Stepper motor driving circuit arrangement for an electronic timepiece | |
| GB1096039A (en) | Improvements in and relating to escapement mechanisms for timepieces | |
| US2661591A (en) | Watch movement having an automatic winding mechanism | |
| US2669089A (en) | Anchor escapement | |
| US3678683A (en) | One-piece roller-impulse member for timepiece escapement | |
| US3462942A (en) | Dial train drive | |
| US3704582A (en) | Indexing mechanism for horological instrument | |
| GB1454624A (en) | Electric timepiece | |
| US3628327A (en) | Clubtooth lever escapement | |
| GB1302418A (en) | ||
| US3685282A (en) | Watch escapement mechanism | |
| US3312053A (en) | Step by step drvie mechanism for timepiece | |
| GB1099897A (en) | Seconds hand drive train arrangement | |
| GB1187752A (en) | An Improved Horological Movement | |
| US3803830A (en) | Plastic escapement lever | |
| GB1438801A (en) | Drive mechanism for two coaxial calendar members in a watch movement | |
| US3670493A (en) | Indexing mechanism for electric/electronic timepieces | |
| GB1308551A (en) | Device for converting oscillatory movement into rotary movement | |
| US2610683A (en) | Interval timer | |
| US3780521A (en) | Electronic timepiece | |
| US3665699A (en) | Device for locking an electro-dynamically maintained balance/balance-spring | |
| GB1269885A (en) | Improvements in or relating to electronic watches | |
| GB1108269A (en) | Escapement device for timepieces and the like | |
| GB1331271A (en) | Drive balance assemgly for an electronic timepiece |