| 摘要 |
The antitheft parking protection frame for a bicycle comprises a welded metal structure for housing two cycles. A steel hook activated by a return spring, both housed in a casing (H), locks the cycles. The antitheft function is obtained by the introduction into the casing of a steel cylindrical lock barrel with anti-drilling protection. At the end of its travel, the lock is totally within its guide tube inside the casing.
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