Magnetic locking system for e.g. belt pretensioner, in car, has securing sleeve holding locking element in locking position by retaining force, and coil for producing electromagnetic force acting opposite to force during current supply

摘要

The system has a retaining pin (4) comprising a spherical interference element (6), to which a locking element e.g. locking roller or locking ball (10), is attached in a locking position in a form-fit manner. A spring element (34) i.e. compression spring, and a permanent magnet (40) produce a retaining force. A securing sleeve (20) holds the locking element in the locking position by the retaining force. A coil (48) produces electromagnetic force acting opposite to the retaining force during current supply.