Locks – Operating mechanism – Key
Patent
1979-11-14
1981-05-19
Wolfe, Robert L.
Locks
Operating mechanism
Key
70377, E05B 2902
Patent
active
042677173
ABSTRACT:
A cylinder lock comprising a fixed, hollow cylinder housing and therein a plurality of tumbler discs turnable by means of the key of the lock. Each tumbler disc has a peripheral recess, and there is a locking bar extending axially relative to the locking discs and being radially guided by them when moving between an outer locking position and an inner releasing position. There is also a turnable force-transmission member non-turnably connected to the locking bar. Between the locking discs, there are spacer discs, each provided with a peripheral recess at the position of the locking bar. This recess is so formed, that it guides, in the tangential direction of the spacer discs, the radial movement of the locking bar. The locking discs as well as the spacer discs are turnably guided and radially supported directly by the internal surface of the cylinder housing. The locking discs, the spacer discs and the locking bar have guiding surfaces acting in a tangential direction of the lock. These surfaces provide a tangential locking of the spacer discs relative to the locking bar in all functional positions of the lock as well as fixed limits for the movability range of the locking discs relative to the locking bar and means for obtaining a force transmission from the locking discs to the locking bar at the limits of the movability range of the locking discs.
REFERENCES:
patent: 2217047 (1940-10-01), Fitzgerald
Oy Wartsila Ab
Wolfe Robert L.
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