초록 ▼

An operator assembly for a casement window that includes a frame and a pane carrying sash. The operator assembly is mounted to the frame and an elongated arm connects the operator assembly and the sash. Movement of the arm moves the sash relative to the frame for opening and closing the window. The

An operator assembly for a casement window that includes a frame and a pane carrying sash. The operator assembly is mounted to the frame and an elongated arm connects the operator assembly and the sash. Movement of the arm moves the sash relative to the frame for opening and closing the window. The operator arm includes a pivotally mounted and linerally moveable handle which is moveable between a first and second position. A ratchet-type gearing system is provided to connect the handle and operator arm and to effect movement of the operator arm in response to movement of the handle. A selector associated with the handle and gearing system is provided to effect and control the direction of sash movement in response to the movements by the handle. A locking system is provided to engage the gearing system to prevent movement of the gearing system due to loads on the sash that are transmitted to the gearing system through the sash and operator arm. The locking system is biased to an engaged position but is disengaged by movement of the actuator handle and a device associated therewith.

대표청구항 ▼

An operator assembly having an operator arm for opening and closing a window having a frame and a sash pivotally secured to the frame for pivoting about an axis associated with the frame and the sash, said operator assembly comprising; an operator body constructed for securement to a frame, and defi

An operator assembly having an operator arm for opening and closing a window having a frame and a sash pivotally secured to the frame for pivoting about an axis associated with the frame and the sash, said operator assembly comprising; an operator body constructed for securement to a frame, and defining a first and a second position; an elongated operator arm having one end constructed to engage a sash, the other end gearingly secured to the operator body, and constructed to move in a plane substantially transverse to a frame pivot axis; a force multiplying gearing system positioned within said body and operatively associated with said other end of the operator arm; an elongated graspable handle, pivotally mounted within said body for movement between the first and the second position and in a plane substantially parallel to the plane of movement of the operator arm, said handle having one end positioned within the body and operatively associated with the force multiplying gearing system and the other end extending away from the sash; so that movement of the handle between the first and the second position, causes movement of the force multiplying gearing system and pivotable movement of the operator arm to cause movement of the sash; and wherein the force multiplying gearing system includes a first pinion gear constructed to be rotated by movement of the handle, a first large spur gear rotatably meshed with first pinion gear for rotation, a second small gear journaled to the first large spur gear for rotation therewith, a second large spur gear which forms part of the operator arm and rotatably enmeshed with the second small gear, whereby movement of the handle causes the first pinion gear to rotate, which drives the first large spur gear, the rotation of which rotates the second small gear, which drives the operator arm spur gear.