| 摘要 |
<p>By inserting the key (9) into the cylinder lock, the lug (5') of the butterfly (5) enters into the groove (11) while the lug (6') of the butterfly comes out from the groove (12). This movement is enabled by the channel (14) in which the lug is 'hidden'. By turning the key (9) into any position, 'locked' elements of mechanism occupy the corresponding positions. When trying to unlock with the key (8) when the other key (9) is in said 'locked' position, minimal front clearances (Z1, Z2 and Z3) are being annulled whereby the lug (6') leans upon a front ringlike surface of cylinder body (1) in the plane (I'-I'), while the lug (5') on the part of concave surface leans to the lower edge of the ringlike surface of the rotating locking disk (4) in the plane (III-III). These leanings prevent the lug (5') of the butterfly (5) to come out of the groove (11) whereby the lug (5') encompassed by the groove (11) has a role of a detent which blocks turning of insert of cylinder body (2) by the key (8).</p> |
