IT1043212B - Electric motor for clock mechanism - has crystal oscillator oscillating blade magnetically coupled to rotor - Google Patents
Electric motor for clock mechanism - has crystal oscillator oscillating blade magnetically coupled to rotorInfo
- Publication number
- IT1043212B IT1043212B IT2808575A IT2808575A IT1043212B IT 1043212 B IT1043212 B IT 1043212B IT 2808575 A IT2808575 A IT 2808575A IT 2808575 A IT2808575 A IT 2808575A IT 1043212 B IT1043212 B IT 1043212B
- Authority
- IT
- Italy
- Prior art keywords
- rotor
- blade
- electric motor
- crystal oscillator
- magnetically coupled
- Prior art date
Links
Landscapes
- Electromechanical Clocks (AREA)
Abstract
The rotor of this motor can be a toothed wheel (2) made from ferro-magnetic material. An L-shaped permanent magnet (4) is mounted on a blade (1) so that it is oscillated by a coil (5) driven by a crystal-oscillator. It also causes the rotor to rotate by exciting its teeth. The blade is cantilevered from a mounting block and has the desired natural resonant frequency of oscillation. The drive frequency is reduced by a factor of f/2Q, where Q is the Quality factor of the blade. This gives automatic starting of the motor. The motor is suitable for timing mechanisms and has a simple construction.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT2808575A IT1043212B (en) | 1975-10-08 | 1975-10-08 | Electric motor for clock mechanism - has crystal oscillator oscillating blade magnetically coupled to rotor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT2808575A IT1043212B (en) | 1975-10-08 | 1975-10-08 | Electric motor for clock mechanism - has crystal oscillator oscillating blade magnetically coupled to rotor |
Publications (1)
Publication Number | Publication Date |
---|---|
IT1043212B true IT1043212B (en) | 1980-02-20 |
Family
ID=11222892
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT2808575A IT1043212B (en) | 1975-10-08 | 1975-10-08 | Electric motor for clock mechanism - has crystal oscillator oscillating blade magnetically coupled to rotor |
Country Status (1)
Country | Link |
---|---|
IT (1) | IT1043212B (en) |
-
1975
- 1975-10-08 IT IT2808575A patent/IT1043212B/en active
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