A PUSH-TYPE PIN CYLINDER ASSEMBLY AND A METHOD OF OPERATING SAME

摘要

A push-type pin cylinder assembly (10) including a housing (12), a cylinder barrel (34) and a detent (26). The housing (10) has a barrel opening (14) therein. The cylinder barrel (34) has a key slot (36), a detent recess (38) and a longitudinal axis. The cylinder barrel (34) is slidably mounted in the barrel opening (14) for axial movement relative to the housing (12). The detent (26), which is mounted in the housing (12), is adapted to bias the barrel (34) towards a rest position when engaged with the detent recess (38). During insertion of a correctly coded key (37) into the key slot (36), the detent (26) holds the barrel (34) in the rest position until insertion of the key (37) is at least substantially complete after which the key (37) then causes the detent (26) to be driven out of biasing engagement with the cylinder barrel (34) where after pushing of the key (37) and/or the cylinder barrel (34) in the direction of key insertion axially moves the cylinder ban-el (34) relative to the housing (12) from the rest position to an actuated position.