| 摘要 |
<p>PURPOSE:To achieve the double operation and to prevent the erroneous operation, by forming a notch in a key while providing a blocking member in the lock thereby blocking the locking except when the blocking member is pushed. CONSTITUTION:A blocking member 9 formed with a notch 13 is provided in front of a key groove 12 of a steering lock 1. A notch 7 is formed at the corresponding position of the key 6 to rotate a rotor 15 only through the key 6. The key 6 can not be pulled except when the blocking member 9 is pushed to match the notch 13 with the key groove 12, thereby the double locking operation is achieved while the rotor 15 can be operated only by the key the erroneous operation is prevented.</p> |
