| 摘要 |
The invention relates to a spring lock having a rotary filter. The lock comprises, on the inside of a barrel 14, a rotary cylinder 10 and a protective device or filter 16 intended to prevent a drill from being introduced through the lock hole formed on the entry wall of the barrel. The filter 16 consists of at least one circular washer 22 to 25 made of relatively hard material which is mounted between the entry wall 12 of the barrel and the cylinder 10 and which is integral in terms of rotation with the latter, said washer having a central hole which is intended for the passage of the key 56 and the profile of which comprises at least one tip which projects into said passage. <IMAGE>
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