Roto Frank Ag

Andersen Corporation

Harald Tomanek

James Curtis Guhl

Hartmut Ginnow-Merkert

Michael Sill

Wolfgang Radle

Jurgen R Martens

A roof window has a locking device (1) for locking the sash (4) in open positions relative to the casing (3); a device for opening the sash including spring arms (2) extending at a right angle to the window casing (3) at least in the closed condition of the roof window, and the spring arms (2) support the window sash (4) on said casing (3) in the open position thereof, the spring arms (2) are operatively connected both to the casing (3) and the window sash (4) by pivot bearings (5, 6), and one of the pivot bearings (6) is disposed on a spring-operated slide (8) movable in a guide (7). The slide being lockable by the locking device (1) which is operatable by a handle (9, 9').

Roof window with positioning assembly

The invention concerns a tilting-swinging roof window, in which the window sash (1) is held by two arms (3) mounted to pivot on the upper end of the casement (2). In the swinging movement, the window sash (1) is guided by swivel pins (12) slidable in grooves (9) on the side members (6) of the casing (2). In the tilted position, the sash (1) is tightly connected by the arms (3) to the upper end of the casement (2). The roof window is provided with an opening device, which, in the area of the longitudinal side members of the casement, requires little space, applies force to the window casing as uniformly as possible, and has parts which are largely integrated into existing components. Slides (4) under spring force are guided in tubular arms (3) and swivel-mounted spring arms (5) are located on the side members (6) of the casement (2) so that a plane through the bearings (10, 11) of the spring arms (5) in each case forms an acute-angled triangle with a plane through the bearings (20) of the tubular arms (3) on the casement (2), and the bearings 10.

Vent and tilt roof window providing an exit

A counterbalanced window operator includes a rotatable drive member operatively connected to the pivoting end of the window by means of an arm member (29). A spring (40) occupying a fixed orientation is operatively connected to the arm member (29) to counterbalance the torque transmitted from the window to the arm member (29). In a preferred embodiment, double scissors arm members (250a and 250b) include a pair of first arm members (251a and 251b) that define a first plane and a pair of second arm members (252a and 252b) that define a second plane at an oblique angle relative to the first plane when the window is in an open position.

Growing community of inventors

Leinfelden-Echterdingen, Germany

Harald Tomanek