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BRAKE DEVICE, ARRANGEMENT FOR CONTROLLING MOVEMENTS OF ACCESS MEMBER, AND ACCESS MEMBER SYSTEM
A brake device (12a, 12b) comprising a hard magnet (20); a soft magnet (22) configured to switch polarity between a first polarity and a second polarity when being subjected to a magnetic field and configured to maintain the polarity when the magnetic field is removed; an electric coil (24) located around the soft magnet; an electric control system (16) configured to apply a current pulse to the electric coil to generate the magnetic field for changing the polarization of the soft magnet; and a brake element (18) comprising a magnetic target section (28), the brake element being arranged to move to a released position (40) when the soft magnet adopts the first polarity, and arranged to move to a braking position (64) due to a magnetic field generated by the hard magnet and the soft magnet in combination and acting on the magnetic target section when the soft magnet adopts the second polarity.
BRAKE DEVICE, ARRANGEMENT FOR CONTROLLING MOVEMENTS OF ACCESS MEMBER, AND ACCESS MEMBER SYSTEM
A brake device (12a, 12b) comprising a hard magnet (20); a soft magnet (22) configured to switch polarity between a first polarity and a second polarity when being subjected to a magnetic field and configured to maintain the polarity when the magnetic field is removed; an electric coil (24) located around the soft magnet; an electric control system (16) configured to apply a current pulse to the electric coil to generate the magnetic field for changing the polarization of the soft magnet; and a brake element (18) comprising a magnetic target section (28), the brake element being arranged to move to a released position (40) when the soft magnet adopts the first polarity, and arranged to move to a braking position (64) due to a magnetic field generated by the hard magnet and the soft magnet in combination and acting on the magnetic target section when the soft magnet adopts the second polarity.
BRAKE DEVICE, ARRANGEMENT FOR CONTROLLING MOVEMENTS OF ACCESS MEMBER, AND ACCESS MEMBER SYSTEM
ARBEGARD BERNT (author)
2024-03-14
Patent
Electronic Resource
English
BRAKE DEVICE, ARRANGEMENT FOR CONTROLLING MOVEMENTS OF ACCESS MEMBER, AND ACCESS MEMBER SYSTEM
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