Patent ID: 7486482

Claim:
A latch assembly for locking and unlocking a swing arm, comprising: a notch at an end of the swing arm; a latch lever being rotatable at a first latch pin proximate to a first end, having a notch receiving portion proximate to a second end thereof, and having a second latch pin extending from the second end; an attraction part that is magnetized by a magnetic field; and a solenoid coil that winds around the attraction part, wherein, the first latch pin transfers an applied torque to the latch lever via a magnetic force to rotate the latch lever to a locked position when the swing arm is to be locked in a locked position, the attraction part receives the magnetic field and attracts the second latch pin when the swing arm is in the locked position, and a current is applied to the solenoid coil to offset magnetism of the attraction part when the swing arm is to be unlocked from the locked position.