| 摘要 |
<p>PCT No. PCT/AU91/00357 Sec. 371 Date Apr. 27, 1993 Sec. 102(e) Date Apr. 27, 1993 PCT Filed Aug. 12, 1991 PCT Pub. No. WO92/03631 PCT Pub. Date Mar. 5, 1992.A self latching device is disclosed which is arranged to latch in a predetermined position, two members which are otherwise movable relative to each other. The device comprises a latch arm arranged to be mounted to one of the members and which is movable between a latched and a retracted position , and a retaining element incorporating a permanent magnet arranged to be mounted to the other member. The latch arm is spring biased into the retracted position but, when in the predetermined position, is caused to move by the magnetic field generated by the magnet into the latched position wherein any substantial relative movement of the two members is prevented by the latch arm engaging the retaining element.</p> |
