| 摘要 |
A CYLINDER LOCK AND KEY COMBINATION, WHEREIN THE LOCK COMPRISES A SIDE PROFILE RIDGE (60) DISPOSED IN THE KEY SLOT (53) AND HAVING RELATIVELY SHALLOW RECESSES (61), IN WHICH A PROJECTION (55) ON A SIDE TUMBLER (54) IS VERTICALLY MOVABLE, AND A CONTINUOUSLY EXTENDING EDGE PORTION (62). THE KEY HAS A RELATIVELY SHALLOW CODED GROOVE (17), WHICH COOPERATES WITH THE SIDE TUMBLER PROJECTIONS (55) OF THE LOCK, AND A RECTILINEAR, DEEPER PROFILE GROOVE (16), INTO WHICH THE EDGE PORTION (62) OF THE SIDE PROFILE RIDGE FITS. THIS UNITARY EDGE PORTION SECURES A GOOD GUIDANCE OF THE KEY WHEN THE LATTER IS INSERTED INTO THE LOCK.
|
