A rotary latch mechanism for releasably securing a first structure relative to a second structure. The rotary latch mechanism includes a housing adapted to be attached to the first structure, an actuator assembly coupled to the housing, a linkage coupled to the actuator assembly and arranged for movement along the housing with movement of the actuator assembly, and a bolt coupled to the housing and to the linkage, the bolt arranged for pivotal movement relative to the housing with movement of the linkage. The bolt is adapted to move between a latched position engaged with the second structure to secure the first structure relative to the second structure and an unlatched position spaced apart from the second structure to allow movement of the first structure relative to the second structure.

A lock is provided which has a handle, a body and a hook, mutually held together by a slidable pin. The handle is movable between a retracted position and an extracted position, the handle being configured to rotate with respect to the body.

A modular closure device for different closure elements, such as finger levers, plate cylinders, profile cylinders, profile half cylinders, for locking a pivot lever in a recess, is described, wherein the closure elements can be inserted and fastened in a receptacle arranged in the recess or the pivot lever, either from the front or from the rear, characterised in that the closure device, which has an interchangeable insert adapted to the closure device and having a different design for the various receptacles, interacts with a guide in such a way that this can be inserted into the recess or into the pivot lever, and the recess or the pivot lever having the inserted interchangeable insert can be plugged in a door leaf through an opening in the door leaf or the like and can be fastened with a cap.

A handle assembly for an aircraft door includes a shaft to open the door, an exterior handle deployable between a stowed position and a deployed position, and a clutch having a driving member coupled to the exterior handle and a driven member coupled to the shaft. The clutch is configurable between a disengaged configuration in which the driving member and the driven member are disengaged, and an engaged configuration in which the driving member and the driven member are engaged so that actuation of the exterior handle rotates the shaft to open the door. Rotation of the exterior handle between the stowed position and the deployed position drives an axial movement of the driving member toward the driven member to configure the clutch to the engaged configuration.

A retractable handle arrangement includes a handle movable between stowed and deployed states, a motor and transmission mechanism arranged to couple the motor to the handle for moving the handle from the stowed state to the deployed state when the motor is driven in a first direction, and to modulate the force exerted on the handle and the speed at which the handle is deployed as the handle travels from the stowed state to the deployed state.

A handle for a compartment of a low, medium or high voltage switchgear includes: a body part; a hand grasping part; and a lock. The handle is movable from a closed position to an open position. When the handle is in the closed position, the handle is not useable to open a door of a compartment of the switchgear. When the handle is in the open position, the handle is useable to open the door of the compartment of the switchgear. In the open position, the hand grasping part is positioned so as to be graspable by a human user. In the closed position, a transition of an active element in the compartment of the switchgear from a quiescent state to an active or potentially active state activates the lock. Activation of the lock stops the handle from moving from the closed position to the open position.

A locking device for a window or a door, wherein the window or the door has a sash slidable in a horizontal direction within a frame. When a user turns on a switch to control a block to move from the first position to the second position, the block protrudes out of a vertical surface of the sash, thereby driving a linkage member to disengage from the frame. At this time, the user could hold and push the block in the horizontal direction to move the sash between a third position and a fourth position. When the sash is pushed back to the third position, the block could be controlled to move back to the first position, namely back to a mounting groove, thereby moving the linkage member to a position where the linkage member is engaged with the frame. A method of operating thereof is provided as well.

A security swing handle comprises a housing and a handle pivotally mounted to the housing between a closed position and an open position. A locking insert is rotatably supported in the housing and operatively connected to a latch to actuate the latch to release the handle to an open position. A hasp assembly includes a hasp at the bottom of the housing and a plate member disposed within an interior of the housing adjacent to a bottom of the latch. A pin on the locking insert is disposed within an aperture of the plate member to move the plate member against the latch to release the handle to the open position when the locking insert is rotated. If a padlock locked to the hasp is subjected to blunt force, edges of the aperture shear the pin from the locking insert disabling the locking insert.

A handle operably coupled to rotating door handle assembly is disclosed. The handle may include a first rotatable member configured to engage a door latch mechanism. The handle may further include a second member mechanically engaged with the first member and the second member may be extended a length between a non-extended position and an extended position. A handle cavity may be defined within at least a portion of the second member and a bar may be enclosed within the handle cavity. Furthermore, an extension mechanism may be incorporated with the bar and the second member and configured to extend the bar from the cavity when the second member is in the extended position and retract the bar within the cavity when the second member is in the non-extended position.

A latch mechanism includes a hook, a displaceable handle, and links connected between the handle and hook for the operation of the latch mechanism. The handle and links cooperate with the hook to hold the latch mechanism in a locked position.