An operator for a window comprising a base designed to be secured to a window sash, an arm having first and second ends with the first end being secured to the base and a first end of the arm having a worm wheel formed thereon, a shaft having a worm operatively connected to the worm wheel, a handle secured to the shaft, a locking mechanism comprising a multipoint tie bar, and an actuator connected to a rack and pinion gear arrangement to move the multipoint tie bar between open and locked positions. The arrangement provides for a compact efficient design which includes a locking mechanism and an opening mechanism located at the same point.

The present invention relates to a locking device 1 having a deadbolt 104 within a casing 102, which deadbolt 104 is movable between an advanced position wherein it protrudes from a front face of the casing 102 and a retreated position, wherein it is retracted into the casing 102. The locking device 1 comprises: a link plate 130 which moves the deadbolt 104 to the advanced position; a deadbolt blocking member 110 which is moveable between a blocking position blocking the deadbolt 104 in the advanced position and an unblocking position to allow the deadbolt 104 to move to the retreated position; an electrically driven actuator unit 120 which moves the deadbolt blocking member 110 between the blocking position and the unblocking position; and a control circuit configured to control the electrically driven actuator unit 120 so that once the deadbolt 104 is moved to the advanced position, the deadbolt blocking member 110 is moved to the blocking position by actuation of the electrically driven actuator unit 120.

A driving device including a transmission mechanism, a lever handle, and a locking mechanism. The transmission mechanism includes a mounting housing and a movable member. The mounting housing is formed with a sliding groove, and the stopper edges are respectively disposed on the tops of two sidewalls of the sliding groove. The movable member is configured to pass through the sliding groove. The bottom wall of the movable member is provided with a transmission rack. The lever handle includes a handle, a mount, a connection shaft, and a second fastener. An end of the handle is formed with a second mounting groove that is provided with an internal tooth portion. The mount is disposed in the second mounting groove and can be connected to a section bar member. The connection shaft is rotatably disposed in the mount and includes a first external tooth portion and a second external tooth portion. The first external tooth portion meshes with the internal tooth portion, and the second external tooth portion meshes with the transmission rack. An end of the second fastener is connected to the bottom wall of the second mounting groove. The locking mechanism is configured to pass through the mounting housing and a mounting wall and is connected to the mount.

A hinge assembly having at least two hinge locks for locking a door leaf relative to a door frame and for tilting the door leaf relative to the door frame, wherein an actuation device for common actuation of the hinge locks is provided. The disclosure also relates to a door comprising a hinge assembly and to a method for mounting a hinge assembly.