EP3348738B1

EP3348738B1 - Dual-function roof window with a window sash mounting assembly

Info

Publication number: EP3348738B1
Application number: EP18150283.2A
Authority: EP
Inventors: Stanislaw Kolawa; Michal Górowski
Original assignee: Fakro PP Sp zoo
Current assignee: Fakro PP Sp zoo
Priority date: 2017-01-16
Filing date: 2018-01-04
Publication date: 2021-02-24
Anticipated expiration: 2038-01-04
Also published as: PL420208A1; EP3348738A1; PL240467B1

Description

The invention relates to a dual-function roof window with window sash mounting assembly wherein said window is opened as a pivoting one, that is by rotation of the sash around a horizontal axis located slightly above half of the window, or opened as a tilting one, that is by rotation of the sash around a horizontal axis located at the top of the window, near the upper member of the window frame.
FIELD OF THE INVENTION. From patent descriptions no. WO2005/106174 , WO2009/058039 dual-function roof windows are known, opened at a user's discretion as pivoting or tilting ones. Each of these windows features two intermediate arms whose upper ends are attached to the window frame by means of hinges, while on lower ends of these arms there are pivoting hinges - one in each arm - designed to mount the window sash, executing the opening of the window in the pivoting function. Intermediate arms are sections in the form of angle bars whose vertical walls are situated from the side of the window sash, these arms may also be channel sections with long shelves located horizontally, where the web of the channel section (the web joining the shelves) is located at the top. The pivoting hinge comprises two sub-assemblies, one of them, featuring an arch-shaped guide, is connected to the intermediate arm, while the other sub-assembly, fitted with the arch-shaped slider moving along the guide, is connected to the window sash. The hinge sub-assembly with the arch-shaped guide is mounted on the vertical wall of the angle bar in the intermediate arm, on the outer side of this angle bar, that is on the opposite side in relation to the top wall of the same. Also in the channel section intermediate arm, the hinge sub-assembly with the arch-shaped guide is mounted on the outer side of the channel section from the side of the sash.
There is also a known solution of the hinge for dual-function roof window, i.e. opened as a top hung window by a turn of the sash around a horizontal axis located in the upper part of the window, and as a pivot window - by a turn of the sash around a horizontal axis located lower, in particular in the window central zone. Said hinge consists of a sub-assembly fitted with an arc-shaped slide, secured to the roof window sash and a sub-assembly fitted with an arc-shaped guide, secured to the window frame.The hinge sub-assembly, fitted with a guide, is a component of a metal intermediary arm, not shown in this invention as well as connection of the intermediary arms to the window frame.
Apart from the roof window known from EP 2419589 , there is also known from publication BE1015350A3 a solution of roof window consisting mainly of a frame and a tilting wing, characterized in that the frame is essentially composed of a fixed part in the form of a frame and from an outwardly rotatable part - posts hingedly mounted on the frame by means of two hinge elements arranged at the same height at a distance from the bottom of the frame , wherein the tiltable wing is an inwardly tilting wing which is arranged at the bottom by means of one or more coaxial hinges on the rotatable part of the frame. Said window comprises a pivoting hinge build from the slider and the guide, wherein the slider is located on one side, closer to the window frame therefore is centered laterally with respect to the post.
THE INVENTION is defined by claim 1 and relates to a dual-function roof window with window sash mounting assembly, where said sash mounting assembly comprising two intermediate arms, situated on the outside of the window sash on its right and left side. A lower ends of said arms are connected by two pivoting hinges (one on each side of the window) to the window sash, where in each of the hinges, the sub-assembly attached in the intermediate arm comprises an arch-shaped guide, and the sub-assembly attached to the sash comprises an arch-shaped slider, is characterised in that in each pivoting hinge two planes adjacent to the sides of the slider from the side of the sash and from the outside, on its section moving along the guide, are located on both sides of the plane perpendicular to the axis of rotation of the sash, determined by the geometrical centre of the intermediate arm's main cross-section. The indicated planes adjacent to the slider are further herein referred to as the 'inner plane of motion' - with regard to the plane adjacent to the slider from the side of the sash, and the 'outer plane of motion' - with regard to the plane adjacent to the slider from the outer, lateral side of the window.
Upper ends of the intermediate arms are connected by tilting hinges to the window frame. When the window is opened in the pivoting function, intermediate arms rest on the windov sash frame, whereas only the sash is rotating. When the window is opened in the tilting function, intermediate arms are rotating along with the window sash. Intermediate arms always move around the horizontal axis, i.e. in the vertical plane; therefore, location of the slider's inner plane of motion and outer plane of motion on both sides of the plane perpendicular to the axis of rotation of the sash, determined by the geometrical centre of the intermediate arm's main cross-section, as indicated above, refers to all temporary positions of the intermediate arm. The indicated location of the inner and outer plane of motion of the slider with respect to the geometrical centre of the intermediate arm's cross-section, refers also to the situation wherein the arch-shaped slider is locked in a fixed position, in which the slider is in forward-most position slid out of the guide, and the window is further opened by rotation of the sash on the axis connecting the arch-shaped slider with the plate referred to as the 'slider plate' and attaching the hinge sub-assembly to the lateral plane of the window sash frame.
In particular, the intermediate arm has a box-like structure, and the slider of the pivoting hinge fits into the cross-section of this intermediate arm with at least some of its width. Preferably, the slider's inner plane of motion and outer plane of motion in the pivoting hinge are located symmetrically with respect to the plane perpendicular to the axis of rotation of the sash, determined by the geometrical centre of the intermediate arm's main cross-section.
For implementation of the slider's location with respect to the intermediate arm, as described herein, the slider plate has a spacer offset that is monolithic with the same. From the offset protrudes the slider's axis on which the arch-shaped slider is mounted in the form of a metal sheet pack: near the point of attachment on the slider's axis there are two metal sheet plates, and on the section fitting into the arched guide there are three metal sheet plates. The slider plate of the pivoting hinge is preferably cast, in particular of the aluminium-zinc alloy. The slider plate of the hinge has also a supporting tab, protruding from the plate's spacer offset towards the subassembly of the arched guide-comprising hinge. In the hinge's position with the slider in forward-most position slid out of the guide, where the window is further opened by rotation of the sash on the slider's axes, the supporting tab rests on the guide in the first sub-assembly of the pivoting hinge on both sides of the arch-shaped slider.
The invention's embodiment. The window sash mounting assembly in a dual-function roof window, being the subject of the invention, is illustrated in the drawings, wherein individua figures represent the following:

Fig. 1 -: The roof window, closed - in axonometric view.
Fig. 2 -: Cross-section through the pivoting hinge (with plane marked as A-A in Fig. 1) set up against the superimposed cross-section through the intermediate arm (with plane marked as B-B in Fig. 1).
Fig. 3-: Detail of the pivoting hinge, with parts of the window sash and of the intermediate arm, in the window's partially open position in the pivoting function - in axonometric view.
Fig. 4-: Pivoting hinge sub-assembly attached to the window sash, with its arch-shaped slider and slider plate - in axonometric view.

Reference symbols in the drawings.

1 Window sash
2 Side member of the sash frame
3 Glazing unit in the window sash
4 Slider plate of the pivoting hinge
5 Arch-shaped slider of the pivoting hinge
6 Arch-shaped guide of the pivoting hinge
7 Intermediate arm
8 Channel section of the intermediate arm
9 Z-bar of the intermediate arm
10 Inner plane of motion
11 Outer plane of motion
12 Plane determined by the geometrical centre of the intermediate arm's cross-section
13 Geometrical centre of the intermediate arm's cross-section
14 Spacer offset
15 Slider axis
16 Supporting tab
17 Upper plane of the guide
18 Slider plate end stop
19 Flat spring (under the slider)
20 Socket for the threaded connector
21 Oblique socket for the threaded connector
22 Oblique bracket for the threaded connector

Not included: journals fixing the position of the slider plate with respect to the sash frame protrude from the slider plate perpendicularly to the same, on its opposite side with respect to the slider.

Claims

A dual-function roof window with sash mounting assembly comprising
- a sash (1) with glazing unit (3) and side member of the sash frame

- a window frame

- where said dual-function roof window is arranged to be opened in a pivoting function, that is by rotation of the sash (1) around a horizontal axis located slightly above half the height of the window, and/or opened in the tilting function, that is by rotation of the sash (1) around a horizontal axis located at the top of the window, and said sash mounting assembly comprising

- pivoting hinges and tilting hinges,

- two intermediate arms (7), located on the outside of the sash (1) on its right and left side, wherein upper ends of the said arms are connected by the tilting hinges to the window frame, and their lower ends are connected by two pivoting hinges to the window sash (1), where in each of the pivoting hinges, the first hinge sub-assembly comprises an arch-shaped guide (6) attachec in the intermediate arm (7), and the other hinge sub-assembly comprises an arch-shaped slider (5), arranged to be moved along the arch-shaped guide (6) of the first sub-assembly, and comprises a plate for attaching the other sub-assembly to the lateral plane of the window sash (1), referred to as the 'slider plate' (4), whereas the arch-shaped slider (5) is connected to the slider plate (4) by means of the axis (15) which is arranged to allow for additional rotation the sash (1) after sliding the arched-shaped slider (5) out of the arched-shaped guide (6) to the forward-most position,
characterised in that
- each pivoting hinge comprises two planes (10, 11) which are adjacent to the arched-shaped slider (5) sides from the side of the window sash (1) and from the outside of the sash (1) and each pivoting hinge is located on a section of the arch-shaped slider (5) which is arranged to be moved along the arch-shaped guide (6), and the slider plate (4) comprises a spacer offset (14), from which protrudes the axis (15) on which the arch-shaped slider (5) is mounted such that said planes (10, 11) referred to respectively as the 'inner plane of motion' (10), and the 'outer plane of motion' (11), are located on both sides of the plane (12) perpendicular to the axis of rotation of the sash (1), determined by the geometrical centre (13) of the intermediate arm's (7) main cross-section in all its positions, wherein the spacer offset (14) is monolithic with the slider plate (4).
A dual-function roof window with sash mounting assembly according to claim 1, characterised in that the intermediate arm (7) comprises a box-like structure, and the arch-shaped slider (5) of the pivoting hinge fits into the cross-section of the intermediate arm (7) with at least some of its width.
A dual-function roof window with sash mounting assembly according to claim 1 or 2,
characterised in that the arch-shaped slider's inner plane of motion (10) and outer plane of motion (11) in the pivoting hinge are located symmetrically with respect to the plane perpendicular to the axis of rotation of the sash, determined by the geometrical centre (13) of the intermediate arm's (7) main cross-section.
A dual-function roof window with sash mounting assembly according to claim 1 or 2 or 3,
characterised in that the slider plate (4) of the pivoting hinge comprises a supporting tab (16) protruding from the slider plate (4) towards the subassembly of the guide-comprising hinge, and while the pivoting hinge is in the position with the slider (5) slid out of the guide, the supporting tab rests on the arch-shaped guide (6) on both sides of the arch-shaped slider (5).
A dual-function roof window with sash mounting assembly according to claim 1 or 2 or 3 or 4, characterised in that the slider plate (4) of the pivoting hinge is cast, preferably of the aluminium-zinc alloy.
A dual-function roof window with sash mounting assembly according to one of the claims from 1 to 5, characterised in that the arch-shaped guide (6) is cast, preferably of the aluminium-zinc alloy.
A dual-function roof window with sash mounting assembly according to one of the claims from 1 to 6, characterised in that the slider plate (4) comprises at least one oblique bracket (22) with an opening for at least one threaded connector attaching the slider plate (4) to the sash frame, the said connector being located at an acute angle with respect to the main plane of the plate's adhesion to the lateral plane of the sash (1), and geometrical axes of openings in oblique brackets are located in transversal planes with respect to the longer side of the slider plate.
A dual-function roof window with sash mounting assembly according to claim 7, characterised in that the slider plate (4) comprises journals fixing its position with respect to the sash frame.