| 摘要 |
The lock has two coaxial cylinders lockable by pins in a housing, while each can be coupled by a member to a central lock tongue. At least one cylinder has a spherical recess (25) extending over the whole end of the keyhole. It ends immediately in front of the outermost locking pin of the cylinder. The coupling member (5) is pref. so designed that one cylinder (1) is only coupled to the tongue (3) when the key is inserted, but uncoupled on the key extraction. ADVANTAGE Increased resistance to forcing.
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