| 摘要 |
PCT No. PCT/GB93/00807 Sec. 371 Date Feb. 16, 1995 Sec. 102(e) Date Feb. 16, 1995 PCT Filed Apr. 16, 1993 PCT Pub. No. WO94/00659 PCT Pub. Date Jan. 6, 1994A magnetic key operated lock has an anti-rap arrangement which comprises a magnet pin supported in a bar mounted in a slide member. The remote end of the pin fits into an aperture in a locking plate and is pivoted to swing downwards out of the aperture when a correctly coded key is inserted into the lock. The correctly coded key has a repelling spot to pivot the magnet as required and before the key attempts to move the slide member from its locked position. Rapping on the face of the lock cannot move the remote end of the magnet pin out of the aperture because it is restrained by its pivoting action from moving laterally out of the locking plate. Another anti-rap arrangement includes a padlock incorporating both anti-rap arrangements. |
