| 摘要 |
<p>PCT No. PCT/CH87/00032 Sec. 371 Date Dec. 14, 1987 Sec. 102(e) Date Dec. 14, 1987 PCT Filed Mar. 12, 1987 PCT Pub. No. WO87/05654 PCT Pub. Date Sep. 24, 1987.The spring loaded tumbler is provided with a casing and a core. Latter has a limited travel towards the key passage, and is located in a stepped drilling in the cylindrical core. A sliding sleeve element is located on the core, which has a corresponding shape to that of the stepped drilling. The tumbler according to the present invention can be inserted in normal cylinder locks and effectively prevents unauthorized opening without the use of a key or damage to the lock.</p> |
