| 摘要 |
<p>The closing cylinder has a cylinder core (2), which is rotated by a key that is inserted in a keyway (3). A wide side wall (4) of the keyway is deformed transverse to key insertion direction according to a degradation (5) formed by a material recess of the cylinder core. The material recess is formed by a groove open towards the lateral surface (6) of the cylinder core and extending parallel to a radial extension of the keyway.</p> |
