Pick-resistant lock actuator

摘要

An actuator for a window lock including a housing mountable to a window frame and defining an opening between opposite sides, one of the sides having a recessed portion therein. A handle is pivotable about an axis within the housing opening and has a central opening with sloped cam surfaces therearound. A cam bushing is receivable in the handle central opening and has sloped cam surfaces engageable with the handle cam surfaces whereby pivoting of the handle relative to the cam bushing axially biases the cam bushing relative to the handle toward a locking position. The cam bushing further includes a stop tab extending from one side of the cam bushing and receivable in the housing recessed stop when the actuator is in a locking position. The cam bushing one side is axially biased toward the housing one side. A lock link is operatively connectable to a window lock for operating a lock in response to pivoting of the lock link, and is pivotally connected to the cam bushing.