DE68988T1 - CLOSING MECHANISMS AND METHOD FOR MAGNETIZING A CLOSING MAGNET. - Google Patents

Abstract

The method starts from a magnet (14) having its opposite ends magnetized such that north and south pole be equally strong. One pole (N) of the locking magnet is connected to the opposite pole (S) of a second magnet (30). A magnetic field is applied to the opposite end (S) of the locking magnet, and is collapsed to reverse the polarity of said opposite end, whereby the strenght of the magnetic pole adjacent the second magnet becomes relatively weak compared to the pole adjacent the magnetic field. Use in order to prevent undesirable interaction between the locking magnets in magnetic locksets.

Claims (7)

PRINZ, 3UNKE & PARTNER Patent Attorneys ■ European Patent Attorneys 0Q6 8 Munich Stuttgart Bruce Samuel SEDLEY February 14, 1983 Box 96, R. R. 1 Koloa Hawaii 96756 / V.St.A. Our reference: S 3143 Patent claims 1. Locking mechanism with a pair of magnets (14) which are arranged side by side at a distance from one another, characterized in that a pair of mutually corresponding ends (s) of the magnets are each magnetized so that they have a magnetic field of relatively low strength while the opposite pair of corresponding ends (N) are magnetized so as to generate relatively high strength magnetic fields.
10 2. Mechanism according to claim 1, characterized in that that the magnets (14) are arranged with their longitudinal axes essentially parallel to one another, with means (10, 12) are provided in order to mount the magnets (14) for performing a longitudinal movement. 3. Mechanism according to claim 1, characterized in that the mechanism comprises a slidable core (10) , the magnets (14) slidable in the core (10) are held. 4. Method of magnetizing a locking magnet for use in a magnetic card operated Castle, with the following steps: Provision of a locking magnet (14), the opposite ends of which are magnetized in this way are that they produce a north pole and a south pole of essentially equal strength, jQ characterized in that the method further follows Steps include: magnetically connecting one end of the locking magnet (14) to a second magnet (30) that pole (S) of this second magnet (30) which is opposite to the pole (N) of said one end is, Applying a magnetic field to the opposite end (S) of the locking magnet (14) and suddenly Dismantling this field to reverse the polarity of said opposite end, thereby the strength of the magnetic pole (s) at said one end of the locking magnet (14) is relatively small compared to the strength of the pole (N) at said opposite end. 5. The method according to claim 4, characterized in that the magnetic field strength of the second magnet (30) is greater than the field strength of the adjacent pole (N) the locking magnet (14). 6. Magnetic key operated locking mechanism with a sliding core (10) consisting of a Locked position in an unlocked position using a suitably coded magnetic key (21) is movable and has a plurality of recesses (12) each containing a magnetized pin (14), each of these pins (14) displaceable along a recess (12) between a locked position and an unlocked position is characterized in that a pair of mutually corresponding ends (s) of the magnets are each magnetized so that they generate a magnetic field of relatively low strength, while the opposite Pair of mutually corresponding ends (N) are magnetized so that they are magnetic fields relative generate great strength. 7. Magnetic key operated locking mechanism according to claim 6, characterized in that the corresponding ends (s) of the magnets (14) which are turned towards the inside of the recesses (12), which have relatively low strength.