Magnetic lock device

Details Magnetic lock device Magnetic lock device

E - Fixed Constructions

05

B

E05B 47/00 (2006.01) A41F 1/00 (2006.01) A45C 13/10 (2006.01) H01F 7/02 (2006.01)

Patent

CA 2057698

ABSTRACT OF THE DISCLOSURE A magnetic lock device comprises two parts, one of which provides the magnetic attraction (referred to as the "part A") and the other of which is magnetically attracted by the part A (referred to as the "part B"). The part A includes a permanent magnet having a center bore, a first ferromagnetic plate, and a nonmagnetic enclosure having a center bore aligned with the center bore of the permanent magnet and for packaging the permanent magnet and first ferromagnetic plate, and the part B includes a second ferromagnetic plate that can engage the first ferromagnetic plate. Specifically, the nonmagnetic enclosure has a depressed surface on the side on which the second ferromagnetic plate engages the first ferromagnetic plate and which provides a sliding surface for the second ferromagnetic plate to be guided directly toward the center bores of the enclosure and permanent magnet. A magnetic gap is defined between the enclosure and permanent magnet, without or with an intervening annular backup member which is disposed between the enclosure and permanent magnet. The improvement according to the present invention provides the reduced weight and simplified construction advantages.

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