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Once the door is closed, control of these two mechanical type child locks is completely inaccessible to passengers. Starting in 1999, [6] manufacturers began using electronic child locks activated from the driver position via a Door control unit, [7] although Nissan offered manual, remote controlled child locks on their Pulsar/Cherry as early ...
In order to provide the shear magnetic lock with the appropriate holding force, then two pins lock the armature onto the magnet itself, and ensure that the magnet locks into place. An improved "shear" electromagnetic lock was patented on May 2, 1989, by Arthur, Richard and David Geringer of Security Door Controls, an access control hardware ...
Interior doors should be closed and secured to restrict a child's access to such areas as garages, basements, laundry rooms, home offices & gyms, bathrooms, or any other potentially hazardous area. Many different types of door latches are available. from simple door knob covers to top-of-door latches that can be operated from both sides of the ...
The most basic type of electronic lock is a magnetic lock (informally called a "mag lock"). A large electro-magnet is mounted on the door frame and a corresponding armature is mounted on the door. When the magnet is powered and the door is closed, the armature is held fast to the magnet. Mag locks are simple to install and are very attack ...
A magnetic keyed padlock A magnetic keyed padlock. A magnetic keyed lock or magnetic-coded lock is a locking mechanism whereby the key utilizes magnets as part of the locking and unlocking mechanism. Magnetic-coded locks encompass knob locks, cylinder locks, lever locks, and deadbolt locks as well as applications in other security devices.
An electric current typically energizes the electromagnet to attract and hold the steel plate, keeping the door open. Unlike electromagnetic locks, the magnetic attraction of an electromagnetic door holder is usually weak enough that it can be manually overpowered at any time by anyone, allowing the door to close. [citation needed]