CH636406A5 - SHUTTERS ON A ROOF WINDOW. - Google Patents

Description

636406

2

Claims (4)

PATENT CLAIMS 1. Window shutter on a skylight with a window sash that can be rotated about an axis of rotation (20), characterized in that the window shutter consists of a thick-walled part (11) made of plastic rigid foam that covers the outer glass surface (12), the corners and edges of which are covered by a thin-walled part (13) made of sheet metal or plastic, with the thin-walled part (13) having extensions (14,15) protruding beyond the edge of the rigid foam part (11), which in the area of the lower edge of the window shutter when installed under the window sash pivotable cover frame strip (18) are pushed in and rest on the pivotable cover frame strip (18) and on the outer glass surface (12) of the window sash in the remaining area and, when the window is closed, reach under the cover frame strip (21) fixed above the axis of rotation (20). 2. Window shutter according to claim 1, characterized in that the extensions (14,15) projecting beyond the edge of the plastic rigid foam part (11) extend over the entire length of the window sides, overlapping the cover frame strips (18,21). 3. Window shutter according to claims 1 and 2, characterized in that the side walls and the outer surface of the plastic rigid foam part (11) are covered with sheet metal or plastic. 4. Window shutter according to one of claims 1 to 3, characterized in that a ventilation gap (26) is arranged between the outer glass surface (12) and the plastic rigid foam part (11). The invention relates to a window shutter on a skylight with a window casement that can be rotated about a central axis. Shutters, like awnings, have the purpose of covering the light incidence area of the window. There are known outdoor awnings whose fabric panels can be pulled down on the outside of the sash, similar to a sun blind, and hooked to the lower, lateral edge of the sash, so that the window sash is covered from the outside. Outdoor awnings of this type are not storm-proof, cause annoying fluttering noises when it is windy and have a moderate darkening effect because light still enters, especially on the sides. There is also no additional security against pane breakage in the event of heavy hailstorms. Furthermore, venetian blinds mounted on the outside of the oscillating wing are known, which also have only a moderate darkening effect, easily produce disturbing rattling noises when it is windy and can easily be dismantled from the outside in the event of a break-in. The object of the invention is to create a window shutter for a roof window with a window sash that can be rotated about a central axis, which creates absolute darkening of the room and is built and attached so rigidly with a low dead weight that no disturbing noises are produced in the wind and which also Compared to conventional window shutters, it has significantly improved noise and heat insulation and offers improved protection against broken panes, extreme hailstorms and against burglary. According to the invention, this object is achieved in that the window shutter consists of a thick-walled part made of rigid plastic foam covering the outer glass surface, the corners and edges of which are bordered by a thin-walled part made of sheet metal or plastic, the thin-walled part extending over the edge of the rigid foam part protruding extensions, which are inserted in the area of the lower edge of the window shutter when installed under the cover frame strip that can be pivoted with the window sash and in the remaining area rest on the pivotable cover frame strip and on the outer glass surface of the window sash and, when the window is closed, the cover frame strip that is fixed above the axis of rotation intervene The plastic hard foam has the advantage that it is extremely light despite its relatively high flexural strength, which is important for sliding in the window shutter. In addition, the plastic hard foam results in high heat and sound insulation. Light entering through any gaps at the edge of the rigid plastic foam is advantageously prevented in that the extensions protruding beyond the edge of the rigid plastic foam extend over the entire length of the window sides, overlapping the cover frame strips. The rigid plastic foam is optionally protected against damage in that the side walls and the top surface of the rigid plastic foam are covered with thin sheet metal or thin plastic. A further improvement is advantageously achieved in that a ventilation gap is arranged between the window pane and the plastic rigid foam panel. This gap allows drying when the window pane is wet, which, for example, prevents the plastic rigid foam panel from freezing to the window pane. The gap also prevents water or dirt from smearing large areas of the pane when the window shutter is slid open. An embodiment of the invention is shown in the drawing and will be described in more detail below. Show it: Fig. 1 is an outside view of the skylight with the shutter inserted, Figs. 2, 3 and 4 show sectional views corresponding to lines II, III and IV of Fig. 1. The plastic rigid foam panel 11 covers the outer glass surface 12 of the window, with a gap 26 being formed between the panel 11 and the glass surface 12 . The edges of the plastic rigid foam board 11 are bordered by the thin-walled part 13, which consists of sheet metal or plastic. 14 and 15 are extensions of this part 13. The extension 15 extends from the point 16 near the bottom edge of the window to the point 17. The extension 15 is tucked under the cover molding 18 which pivots with the window in this area. The extension 14 extends from point 17 to the upper edge 19 of the window. When the window is closed, its lower part rests on the cover frame strip .18, which can be pivoted with the window, and it lies with its above the axis of rotation 20 lying part with the lower part 22, which is horizontal in section, on the outer glass surface 12 and protrudes with the part 23 pointing diagonally upwards under the fixed cover frame strip 21. When the window is open, as shown in FIG. 4, the part of the plastic rigid foam board 11 located above the axis of rotation 20 rests only loosely on the glass plate with the extension 14. However, it is not possible to turn up the hard foam plastic sheet 11 in strong winds because the extension 14 passes through the corner 24 of the cover frame strip 21 is prevented from kicking up. The plastic rigid foam panel 11 can only be detached from the window in the direction of the arrow 25 . It is pushed open in the opposite direction with the window slightly open. 5 10 15 20 25 30 35 40 45 50 55 60 65 B 2 sheets of drawings