US 5,581,941 AGranted

Vent and tilt roof window providing an exit

AssigneeRoto Frank AG

InventorsMichael Sill, Wolfgang Radle, Harald Tomanek

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Abstract

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.

Claims20

Dependent claims

A tilting-swinging roof window with a spring-assisted opening device comprising:

(a) a window sash (1) having upper and lower ends and side rails (47) extending therebetween;
(b) a casement (2) for said sash (1) and having upper and lower members and side members (6) extending therebetween;
(c) a pair of tubular arms (3) pivotably connected at one end to said upper members of said casement (2) at bearing points (20) and at their other end to said side rails (47) of said sash (1), said sash (1) being guided in its swinging movement by swivel pins (12) mounted on said side rails (47) of said sash (1) and slidable in grooves (9) on said side members (6) of said casement (2), said sash (1) pivoting relative to said arms about said pins (12) in the swinging position and being attached to and pivoting with said arms (3) in the tilting position of said window sash (1);
(d) a pair of slides (4) slidably guided in said tubular arms (3) adjacent said upper member of said casement (2) and biased in the direction of said other end of said tubular arms (3);
and
(e) spring arms (5) connecting said slides (4) and said side members (6) on said casement (2) with a bearing point (11) on said slide (4) and a bearing point (10) on a side member (6) of said casement (2), the distance between said bearing point (10) of said spring arm with said casement (10) and said bearing point (20) of said tubular arm with said casement being a multiple of the distance between said bearing point (11) of said spring arm with said slide in said sash and said bearing point of said tubular arm with said casement, an imaginary plane through the bearing point (10) of said spring arm with said casement and the bearing point (20) of said tubular arm with said casing forming an acute angle with an imaginary plane through the bearing point (10) of said spring arm with said casement and the bearing point (11) of said spring arm with said sash.

3 more elements

Dependencies are inferred from the claim text.