Cylinder lock
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United States of America Patent
Stats
-
Nov 29, 2005
Grant Date -
May 15, 2003
app pub date -
Mar 7, 2001
filing date -
Mar 9, 2000
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A cylinder lock utilizing an unlocking code to set at any desired time after the cylinder lock has been assembled and which, before the setting of the unlocking code, allows the rotor to be rotated for the purpose of inproving the efficiency of the automotive assembly work. The cylinder lock includes a rotor in which tumblers are installed, is rotatably inserted in a cylinder case, the tumblers following a code forming portion of an inserted key plate to form a lock-side unlocking code that matches a key-side unlocking code defined by the code forming portion. The tumblers are put in a state where the lock-side unlocking code is formed, in response to an identification portion formed in the key plate.
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