LOCK ACTUATOR ASSEMBLY AND CARD READER

摘要

A security arrangement for mounting a handle on the rear of a door, the door having an opening therethrough, the arrangement including a spring-loaded shaft extending through the opening and a floating collar mounted on the shaft and coaxial therewith for rotation with respect to the shaft. The floating collar includes external threads on an outer periphery and the handle comprises internal threads for matingly engaging with the external thread. Thus, the handle is fixedly mounted to the collar and the internal and external screw thread arrangement is tightenable and loosenable only by a special tool.