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EP 2 231 977 B1 |
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EUROPEAN PATENT SPECIFICATION |
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Mention of the grant of the patent: |
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31.05.2017 Bulletin 2017/22 |
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Date of filing: 19.12.2007 |
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International Patent Classification (IPC):
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International application number: |
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PCT/DK2007/050190 |
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International publication number: |
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WO 2009/076950 (25.06.2009 Gazette 2009/26) |
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A WINDOW, A METHOD FOR MOUNTING A WINDOW, AND A WINDOW INCLUDING A SET OF PARTS
FENSTER, VERFAHREN ZUM MONTIEREN EINES FENSTERS, UND FENSTER MIT EINEM BAUSATZ
FENÊTRE, PROCÉDÉ DE MONTAGE DE FENÊTRE, ET FENÊTRE AVEC UN ENSEMBLE DE PIÈCES
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Designated Contracting States: |
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AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO
SE SI SK TR |
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Date of publication of application: |
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29.09.2010 Bulletin 2010/39 |
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Proprietor: VKR Holding A/S |
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2970 Hørsholm (DK) |
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Inventor: |
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- JENSEN, Bent Kirk
DK-2000 Frederiksberg (DK)
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Representative: Awapatent A/S |
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Strandgade 56 1401 Copenhagen K 1401 Copenhagen K (DK) |
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References cited: :
DE-A1- 2 826 777 DE-C1- 19 717 070 US-A- 5 618 089
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DE-A1- 3 835 018 FR-A- 2 860 021
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Note: Within nine months from the publication of the mention of the grant of the European
patent, any person may give notice to the European Patent Office of opposition to
the European patent
granted. Notice of opposition shall be filed in a written reasoned statement. It shall
not be deemed to
have been filed until the opposition fee has been paid. (Art. 99(1) European Patent
Convention).
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[0001] The present invention relates in a first aspect to a window according to the introductory
part of claim 1.
[0002] Windows often need to be able to be opened to provide ventilation of air, heat or
smoke. If a window is positioned in a sloping or flat roof, it is sometimes desired
to provide assisting means in order to open the window. This may be the case if the
window is large or heavy.
[0003] A typical assisting means takes the form of two gas springs, one positioned on each
side of the window, each connecting a side frame member with a side sash member. The
gas springs provide a spring force pushing the respective frame and sash members away
from each other and thus forcing the window towards an open position. To close the
window it is necessary to manually or automatically, for example by means of a chain
operator, pull the window sash towards the window frame. When the window is closed,
the gas springs lie substantially parallel to the frame and sash; when the window
is open, the springs pivot outwards from both the respective frame and sash members.
[0004] Each gas spring is typically secured to both of the respective frame and sash members
from the factory manufacture to ensure that they are positioned properly. This means
that the window frame and window sash are delivered connected to each other, resulting
in a heavy structure, which is difficult to handle during mounting, especially when
mounting the window from the roof side. Further, it is difficult to carry out maintenance,
such as changing the chain operator, from the roof side because the gas springs must
be detached from at least one of the sash and frame in order to open the window enough
to provide access to the lower side of the window. After maintenance the springs must
be reattached in their original positions.
[0005] Another problem connected to such gas spring assisted windows is that the gas springs
will provide a combined force pushing the frame and sash in different directions in
the plane of the window when the window is closed. A similar, but smaller force is
also present in the open state of the window. This force is often so strong that the
frame and sash over time will be offset in relation to each other, i.e. in the closed
state of the window the visible distance between frame and sash at the top will be
smaller or larger than at the bottom, depending on how the gas springs are positioned.
Other deformations typically also occur because of generally low stiffness of the
frame and sash profiles. These deformations provide a non-uniform and thus unpleasing
appearance of the window, and seals or gaskets at the top, bottom or sides of the
window are likely to not be completely tight.
[0006] An example of a window mounted with gas springs connecting side frame and sash members
is disclosed in European patent no.
972 885 B1.
[0007] DE2826777A1 discloses a skylight for a caravan, lifted on swinging arms has its frame made up
of hollow bars joined at the end to form a rectangular box as in the main patent.
The top part or lid has a frame made from hollow bars, supporting the covering pane.
The pane can be carried by resilient lengthways battens in the frame members pref.
in one piece with the frame. The adjusting arms can be fastened to the frame by connections.
This means that two rigid frames made from hollow profiles are used in the whole assembly,
providing ready adaptation to varying needs or preferences.
[0008] DE3835018A1 specifies a vehicle roof having a roof opening in a fixed roof surface, which is
intended in particular for lorries or the like. This roof opening can be opened and
closed by means of a panel. The panel is preloaded in the opening direction and the
operating mechanism, which is connected to the panel, is accommodated in a longitudinal
member which runs in the direction of the longitudinal axis of the vehicle and is
connected releasably to a frame inserted into the roof opening. The frame opening
here may be used in the event of an emergency without hindrance as an emergency exit
hatch when the releasable connection of the longitudinal member and frame has been
disengaged, since then the panel, together with the longitudinal member and the operating
mechanism provided there, is ejected in a power-assisted manner in the opening direction.
[0009] In the light of the above it is the object of the first aspect of the present invention
to provide a window of the type as mentioned in the introduction, which has a more
pleasing appearance and is tighter.
[0010] To meet this object the window according to the present invention is characterized
by the characterizing features of claim 1.
[0011] With the window according to the first aspect of the invention the compression springs
are thus arranged such as to lessen or completely neutralize any force not working
to push the frame and sash away from each other. Hereby, the frame and sash will less
likely be offset in relation to each other over time, and the visible distance between
frame and sash at the top and at the bottom in the closed state of the window will
remain substantially the same. Since the compression springs are furthermore arranged
on the same side of the window, they are closer to each other, cancelling out a major
part of the deformations of the window. A more uniform and pleasing appearance of
the window is thus provided, and seals or gaskets at the top, bottom and sides of
the window will be tighter.
[0012] In an advantageous embodiment said compression springs are adapted to also pivot
towards or away from said bottom sash and frame members during pivoting between said
open and closed positions. During opening and closing of the window, the top frame
and sash members will be somewhat offset from each other also in a direction of a
plane of the closed window. In this embodiment the compression springs will be arranged
to adapt to this offsetting.
[0013] In another embodiment a drive means, such as a chain operator, connects said top
sash member to said top frame member, one of said compression springs being positioned
on each side of said drive means. Sections of the sash and frame on which the chain
operator is secured will be stiffer, and since the spring forces will be concentrated
near these sections, less deformation of the sash and frame profiles will occur. Said
window sash and said window frame each comprises bearing members for receiving respective
heads of said compression springs, at least one head of each compression spring being
embedded in a respective bearing member such as to be rotatable in relation to and
releasable from said bearing member. At least one head being rotatable in relation
to a respective bearing member provides that the compression springs are able to follow
the pivoting towards or away from each other as well as any offsetting of the frame
and sash in relation to each other. At least one head being releasable from the bearing
member provides the possibility of transporting and mounting the frame and sash separately.
Further, since the compression springs are both positioned at the top of the window,
a single person will be able to separate and assemble the frame and sash during mounting
and maintenance of the window. In a development of this embodiment at least one head
of at least one of said compression springs is formed as a ball-like, preferably hemispherical
joint. According to the invention each bearing member, in which one head of a respective
said compression spring is releasably embedded, comprises a tray, which is oblong
in a direction parallel to said top frame and sash members such that each freely and
releasably embedded spring head is slidable in said bearing member in said direction.
This provides for easier and more functional installation and operation.
[0014] In another preferred embodiment said window further comprises a reinforcement member,
preferably in the form of an oblong metallic rail, connecting points of attack of
said compression springs on said window frame and/or sash, respectively, such as to
absorb horizontal force components exerted by the compression springs on said window
frame and/or window sash. Hereby, horizontal force components are absorbed by the
metallic rail, the often less strong profile of the frame and/or sash being relieved
of the load.
[0015] In a second aspect the invention relates to a method of mounting a window according
to the first aspect of the invention, comprising the steps of: providing a top, a
bottom and two side sash members defining a window sash, a top, a bottom and two side
frame members defining a window frame, said bottom sash member being pivotally connected
to said bottom frame member by means of a pivot hinge defining a pivot axis; providing
at least two compression springs, such as gas springs, each having two heads; and
connecting said top sash member to said top frame member by means of said compression
springs such as to provide a spring force on said window sash towards an open position,
by positioning said compression springs such as to be pivotable in directions towards
or away from each other during pivoting of said window sash in relation to said window
frame between said open and a closed position of said window.
[0016] The second aspect of the invention provides advantages similar to those of the first
aspect as described above.
[0017] In a preferred embodiment of the second aspect of the invention, the method further
comprises the step of providing a drive means, such as a chain operator, and connecting
said window sash to said window frame by means of said drive means for pivoting said
window sash in relation to said window frame between said open and closed positions
of said window.
[0018] In another preferred embodiment the method further comprises the step of embedding
at least one head of each said compression spring in a respective bearing member such
as to be slidable, rotatable in relation to and/or releasable from said bearing member.
[0019] In a third aspect the invention relates to a window according to the first aspect
of the invention including a set of parts for spring-loading a window sash in relation
to a window frame of a window, comprising a compression spring, such as a gas spring;
and a bearing member adapted for attachment to said window sash and said window frame,
respectively, for receiving a head of said compression spring, characterized in that
said bearing member is provided with an oblong tray; and at least one of said heads
of said compression spring is formed as a ball-like, preferably hemispherical joint
adapted to be releasably, slidably and preferably rotatably embedded in said oblong
tray of said bearing member. The set of parts according to the third aspect of the
invention provides advantages similar to those described in connection with the first
aspect of the invention. The set of parts further is easily assembled and provides
for great mobility and flexibility.
[0020] In a preferred embodiment of the set of parts according to the third aspect of the
invention comprises two bearing members, both bearing members being provided with
respective oblong trays, and both heads of said compression spring being formed as
ball-like, preferably hemispherical joints adapted to be releasably and slidably embedded
in said respective oblong trays of said bearing members.
[0021] In another preferred embodiment the set of parts further comprises a protection member
secured to said bearing member and comprising a projection abutting said compression
spring in an assembled state of said set of parts such as to hinder said compression
spring from being released from said bearing member. Hereby, accidents during mounting
or maintenance of the window are prevented because the compression spring will not
be able to exit the bearing member.
[0022] In another embodiment said set of parts further comprises a further, like compression
spring, a frame unit with a chain operator and two said bearing members and a sash
unit with two said bearing members. Preferably said frame unit and/or said sash unit
connect points of attack of said compression springs on said window frame and/or sash,
respectively, such as to absorb horizontal force components exerted by said compression
springs on said window frame and/or window sash. With these features the set of parts
according to the third aspect of the invention can fast and readily be mounted or
retrofitted on a window.
[0023] The invention will be explained in detail in the following by means of examples of
embodiments with reference to the schematic drawing, in which
Fig. 1 is a perspective view of a window according to the first aspect of the present
invention,
Fig. 2 is a cross-sectional view of the window according to Fig. 1,
Figs 3 and 4 are end views of the window according to Fig. 1 showing the principal
position of two compression springs,
Fig. 5 is a perspective view of a set of parts according to the third aspect of the
present invention in an assembled state as applied to the window of Fig. 1,
Fig. 6 is a side view of a compression spring of the set of parts according to Fig.
5,
Fig. 7 is a perspective view of a lower bearing member of the set of parts according
to Fig. 5,
Fig. 8 is a perspective view of an upper bearing member of the set of parts according
to Fig. 5,
Fig. 9 is a perspective view of a reinforcing member of the set of parts according
to Fig. 5,
Fig. 10 is a perspective view of another embodiment of a reinforcement member, and
Fig. 11 is a perspective view of a protection member of the set of parts according
to Fig. 5.
[0024] Figs 1 and 2 show different views of a window according to the first aspect of the
present invention in the form of a skylight. The skylight comprises a rectangular
window portion 1 in the form of a Velux® top-hung roof window (GHL type), which is
able to pivot about a horizontal axis positioned along a bottom of the window (to
the lower right in Fig. 1 and to the right in Fig. 2). The window portion 1 is installed
in a flat roof 2 and comprises a sash 3 positioned in a frame 4, which are both extruded
PVC profiles (in the present context flat roofs are defined as roofs having an inclination
in relation to horizontal of less than about 15°). In other embodiments the frame
and sash may be in the form of for example extruded aluminium profiles or they may
comprise wooden parts.
[0025] The sash 3 comprises a bottom 3a, a top 3b and two side (not shown) sash members
and encloses a windowpane 5 with two layers of glazing sandwiching a layer of gas
to provide insulation glazing. The frame 4 comprises a bottom 4a, a top 4b and two
side frame members, of which only one 4c is shown (in Fig. 1). The bottom sash member
3a is pivotally connected to the bottom frame member 4a by means of two hinges (not
shown) defining a pivot axis.
[0026] A dome portion 6 in the form of a dome-shaped acrylic plate is attached to the sash
3 to form a weather shield protecting the window portion 1. Supporting the dome portion
6 are sealing projections or weather strips 7, 8, sealing the sash 3 against the dome
portion 6.
[0027] Pivoting the sash 3 and dome 6 about the pivot axis by means of a chain operator
23 embedded in the top frame member 4b provides movement between an open and a closed
position of the window. The chain operator 23 may be driven automatically and may
be radio controlled.
[0028] Figs 3 and 4 show the principal position of two compression springs in the form of
gas springs 10, 11, one gas spring 10, 11 being positioned on each side of the chain
operator 23, or more precisely on each side of an operator chain 24 of the chain operator
23. The gas springs 10, 11 connect the bottom sash member 3a and the bottom frame
member 4a via sash bearing members 13, 14 and frame bearing members 12, 15, thus providing
a spring force on the window sash 3 towards the open position of the window. As can
be seen from Fig. 3, the gas springs 10, 11 are positioned inclined in the closed
position of the window in relation to the plane of the window in order to provide
an initial force pushing the sash and frame away from each other. Due to the position
of the springs at the top of the window the spring forces will work near the operator
chain to lessen any deformation of the profiles.
[0029] More than two springs may be provided in other embodiments of the window according
to the first aspect of the invention, e.g. connecting side frame and sash members
of the window.
[0030] Fig. 3 shows the window in a fully closed state, and Fig. 4 shows the window in a
fully opened state. As can be seen when comparing the positions of the gas springs
10, 11 in the two states of the window, the gas springs pivot in directions away from
each other during pivoting of the window sash 3 towards the open position of the window.
Correspondingly, during pivoting of the window sash 3 towards the closed position
of the window the gas springs 10, 11 pivot in directions towards each other.
[0031] Fig. 5 shows an assembled set of parts comprising the right gas spring 11, the right
sash bearing member 14 and the right frame bearing member 15 of Figs 3 and 4, this
set of parts being applied to position the gas spring 11 on the right section of the
top sash and frame members 3a, 4a as shown in Figs 3 and 4. The gas spring 11 is shown
in more detail in Fig. 6, the frame bearing member 15 in Fig. 7, and the sash bearing
member 14 in Fig. 8.
[0032] The left gas spring 10 of Figs 3 and 4 equally forms part of a similar, but reversed
set of parts mounted on the left side of the top sash and frame member 3a, 4a. All
parts of the sets of parts provided on each side of the operator chain 24 are of the
same types and are interchangeable.
[0033] Referring to Figs 5 and 6 the gas spring 11 comprises two heads 18, 19, the head
18 engaging the sash bearing member 14, and the head 19 engaging the frame bearing
member 15. Both heads 18, 19 of the gas spring 11 are formed as ball-like, substantially
hemispherical joints. In other embodiments of the compression spring of the window
according to the first aspect of the invention the term "head" may simply denote ends
of the compression spring such that any compression spring will comprise two ends.
[0034] The gas spring 11 is in the form of a standard gas spring, on end threads of which
purpose-made heads 18, 19 have been threaded. The heads 18, 19 are manufactured from
Zyxel 80633, i.e. nylon comprising 33% glass.
[0035] The bearing members 14, 15 are shaped to be embedded in corresponding cut-outs of
the top sash member 3a and top frame member 4a, respectively, and are secured via
screw bores 18. Each bearing member is provided with similar oblong trays, of which
only the tray 15a of the frame bearing member 15 is shown (Figs 5 and 7). The trays
correspond to the hemispherical heads 18, 19 of the gas spring 11.
[0036] The bearing members 14, 15 each have a plane of symmetry at the middle of their longitudinal
directions. The frame bearing member 15 also has a plane of symmetry at the middle
of its transverse direction. In theory the same bearing member could be used both
on the sash and on the frame. However, in the embodiment shown they are not interchangeable,
but have the tray shape and tray size in common. The bearing members are manufactured
from POM with an embedded lubricant.
[0037] Due to the corresponding shapes of the bearing member trays and the heads 18, 19,
as is shown in Fig. 5 each head 18, 19 can be embedded in a respective bearing member
14, 15 such as to be rotatable in relation to and releasable, i.e. freely embedded
in, from the bearing member 14, 15. Further, the tray of each bearing member 14, 15
is oblong in a direction parallel to the top sash and frame members 3a, 4a such that
each spring head 18, 19 is also slidable in the respective tray in said direction.
[0038] When mounted in the window as shown in Figs 3 and 4 the gas spring 11 is hereby adapted
to also pivot towards or away from the bottom sash and frame members 3b, 4b during
pivoting between the open and closed positions of the window. Further, the frame 4
and sash 3 of the window can be easily assembled and because of the versatility of
movement of the gas springs 10, 11 no adjustment of the positions of the individual
elements is necessary. The gas springs 10, 11 automatically slide into their proper
positions.
[0039] Although the heads 18, 19 are freely embedded in the bearing members 14, 15, in both
the open and closed positions of the window the gas springs 10, 11 will be hindered
from jumping out of the bearing members because they are at all times pushed against
ends of the bearing member trays under the weight of the sash 3, windowpane 5 and
dome 6.
[0040] Fig. 9 shows a first embodiment of a reinforcement member in the form of a metallic
rail 16a to be secured to the top frame member 4a by means of screw bores 20a. When
mounting the rail 16a on the top frame member 4a, first the rail 16a is positioned
correctly by means of a folding 21, which extends into a corresponding slot in the
top frame member 4a. The rail 16a is then temporarily secured to the top frame member
4a by means of a bolt 22 (Fig. 5), which is guided through a bolt bore 22a in the
rail 16a and into a predrilled bore in the top frame member 4a. Subsequently, screws
25 (Fog. 5) are guided through the screw bores 18 of the frame bearing member 15,
through the screw bores 20a of the rail 16a and into the top frame member 4a, firmly
securing the frame bearing member 15 and rail 16a to the top frame member 4a.
[0041] Fig. 10 shows a second embodiment of a reinforcement member, which is in the form
of a longer metallic rail 16b secured to the top frame member 4a by means of screw
bores 20b. Both frame bearing members 12, 15 having already been firmly secured to
the rail 16b to the top frame member 4a, they are hereby also firmly secured to the
top frame member 4a. The reinforcement member of Fig. 10 is advantageous over that
of Fig. 9 in that all horizontal force components are absorbed by the metallic rail
16b. The top sash member 3a is equally reinforced by means of a metallic reinforcement
(not shown) disposed within the sash profile.
[0042] The purpose of the rails 16a, 16b is to distribute the forces exerted by the sash
3, dome portion 6 and windowpane 5 on the top frame member 4a via the gas springs
10, 11 over a larger area of the top frame member 4a, the top frame member 4a hereby
being more able to absorb the forces.
[0043] Fig. 11 shows a protection member of the set of parts according to Fig. 5. The protection
member is in the form of a snap protection 17 manufactured from Santoprene (TM) and
secured to the frame bearing member 15. The snap protection 17 comprises a projection
17a abutting the gas spring 11, thereby hindering the gas spring 11 from being released
from the frame bearing member 15.
[0044] When mounting the window of the drawings, the top sash member 3a is connected to
the separately provided top frame member 4a by means of the gas springs 10, 11 to
provide a spring force on the sash 3 towards an open position of the window. This
is done by embedding the heads of each gas spring 10, 11 in respective bearing members
12, 13; 14, 15 such as to be slidable, rotatable in relation to and releasable from
the respective bearing members 12, 13; 14, 15. Then the operator chain 24 of the chain
operator 23 embedded in the top frame member 3a is connected to the sash 3.
1. A window comprising
a top (3b), a bottom (3a) and two side sash members defining a window sash (3), and
a top (4b), a bottom (4a) and two side frame members (4c) defining a window frame
(4), said bottom sash member (3a) being pivotally connected to said bottom frame member
(4a) by means of a pivot hinge defining a pivot axis; and
two compression springs, such as gas springs (10, 11), each having two heads (18,
19) and connecting said window sash (3) and said window frame (4) such as to provide
a spring force on said window sash (3) towards an open position of said window,
said compression springs connect said top sash member (3b) to said top frame member
(4b) and are adapted to pivot in directions towards or away from each other during
pivoting of said window sash (3) in relation to said window frame (4) between said
open and a closed position of said window, said window sash (3) and said window frame
(4) each comprises bearing members (13, 14; 12, 15) for receiving respective heads
(18, 19) of said compression springs, at least one head (18, 19) of each compression
spring being embedded in a respective bearing member (12-15) such as to be rotatable
in relation to and releasable from said bearing member (12-15), characterized in that each bearing member (12-15), in which one head (18, 19) of a respective said compression
spring is releasably embedded, comprises a tray (15a), which is oblong in a direction
parallel to said top frame and sash members (4b, 3b) such that each freely and releasably
embedded spring head (18, 19) is slidable in said bearing member (12-15) in said direction.
2. A window according to claim 1, wherein said compression springs are adapted to also
pivot towards or away from said bottom sash and frame members (3a, 4a) during pivoting
between said open and closed positions.
3. A window according to claim 1 or 2, wherein a drive means, such as a chain operator
(23), connects said top sash member (3b) to said top frame member (4b), one of said
compression springs being positioned on each side of said drive means.
4. A window according any one of the previous claims, wherein at least one head (18,
19) of at least one of said compression springs is formed as a ball-like, preferably
hemispherical joint.
5. A window according to any one of the previous claims, further comprising a reinforcement
member, preferably in the form of an oblong metallic rail (16a), connecting points
of attack of said compression springs on said window frame (4) and/or sash (3), respectively,
such as to absorb horizontal force components exerted by the compression springs on
said window frame (3) and/or window sash (4).
6. A window according to any one of claims 1 to 5, wherein said window includes a set
of parts for spring-loading said window sash (3) in relation to said window frame
(4) of a window, said set of parts comprising
a compression spring, such as a gas spring (10, 11); and
a bearing member (12-15) adapted for attachment to said window sash (3) and said window
frame (4), respectively, for receiving a head (18, 19) of said compression spring,
characterized in that
said bearing member (12-15) is provided with an oblong tray (15a); and
at least one of said heads (18, 19) of said compression spring is formed as a ball-like,
preferably hemispherical joint adapted to be releasably, slidably and preferably rotatably
embedded in said oblong tray (15a) of said bearing member (12-15).
7. The window according to claim 6, wherein the set of parts comprises two bearing members
(12-15), both bearing members (12-15) being provided with respective oblong trays
(15a), and both heads (18, 19) of said compression spring being formed as ball-like,
preferably hemispherical joints adapted to be releasably and slidably embedded in
said respective oblong trays (15a) of said bearing members (12-15).
8. The window according to claim 6 or 7, wherein the set of parts further comprises a
protection member (17) secured to said bearing member (12-15) and comprising a projection
(17a) abutting said compression spring in an assembled state of said set of parts
such as to hinder said compression spring from being released from said bearing member
(12-15).
9. The window according to any one of claims 6-8, wherein the set of parts further comprises
a further, like compression spring, a frame unit with a chain operator (23) and two
said bearing members (12-15) and a sash unit with two said bearing members (12-15),
preferably said frame unit and/or said sash unit connect points of attack of said
compression springs on said window frame and/or sash, respectively, such as to absorb
horizontal force components exerted by said compression springs on said window frame
and/or window sash.
10. A method of mounting a window according to one of the claims 1-9, comprising the steps
of: providing a top (3b), a bottom (3a) and two side sash members defining a window
sash (3), a top (4b), a bottom (4a) and two side frame members (4c) defining a window
frame (4), said bottom sash member (3b) being pivotally connected to said bottom frame
member (4b) by means of a pivot hinge defining a pivot axis; providing at least two
compression springs, such as gas springs (10, 11), each having two heads (18, 19);
and connecting said top sash member (3b) to said top frame member (4b) by means of
said compression springs such as to provide a spring force on said window sash (3)
towards an open position, by positioning said compression springs such as to be pivotable
in directions towards or away from each other during pivoting of said window sash
(3) in relation to said window frame (4) between said open and a closed position of
said window.
11. A method according to claim 10, further comprising the step of providing a drive means,
such as a chain operator (23), and connecting said window sash (3) to said window
frame (4) by means of said drive means for pivoting said window sash (3) in relation
to said window frame (4) between said open and closed positions of said window.
12. A method according to claim 10 or 11, further comprising the step of embedding at
least one head (18, 19) of each said compression spring in a respective bearing member
(12-15) such as to be slidable, rotatable in relation to and/or releasable from said
bearing member (12-15).
1. Fenster, aufweisend
ein oberes (3b), ein unteres (3a) und zwei seitliche Flügelelemente, die einen Fensterflügel
(3) definieren, und ein oberes (4b), ein unteres (4a) und zwei seitliche Rahmenelemente
(4c), die einen Fensterrahmen (4) definieren, wobei das untere Flügelelement (3a)
schwenkbar mit dem unteren Rahmenelement (4a) mittels eines Schwenklagers, das eine
Schwenkachse definiert, verbunden ist; und
zwei Druckfedern, wie Gasfedern (10, 11), die jeweils zwei Köpfe (18, 19) aufweisen
und den Fensterflügel (3) und den Fensterrahmen (4) derart miteinander verbinden,
dass sie eine auf den Fensterflügel (3) wirkende Federkraft in Richtung einer offenen
Position des Fensters bereitstellen,
wobei die Druckfedern das obere Flügelelement (3b) mit dem oberen Rahmenelement (4b)
verbinden und derart angepasst sind, dass sie aufeinander zu oder voneinander weg
verschwenken, während der Fensterflügel (3) in Bezug auf den Fensterrahmen (4) zwischen
der offenen und einer geschlossenen Position des Fensters verschwenkt,
wobei der Fensterflügel (3) und der Fensterrahmen (4) jeweils Lagerelemente (13, 14;
12, 15) zur Aufnahme entsprechender Köpfe (18, 19) der Druckfedern aufweisen, wobei
wenigstens ein Kopf (18, 19) von jeder Druckfeder in ein entsprechendes Lagerelement
(12-15) verankert ist, so dass dieser drehbar in Relation zu und lösbar von dem Lagerelement
(12-15) ist,
dadurch gekennzeichnet, dass
jedes Lagerelement (12-15), in dem ein Kopf (18, 19) einer entsprechenden Druckfeder
lösbar verankert ist, einen Träger (15a) aufweist, der in einer Richtung parallel
zu dem oberen Rahmenelement und dem oberen Flügelelement (4b, 3b) länglich ist, so
dass jeder frei und lösbar verankerte Federkopf (18, 19) in dem Lagerelement (12-15)
in dieser Richtung verschiebbar ist.
2. Fenster nach Anspruch 1, wobei die Druckfedern dazu angepasst sind, während des Verschwenkens
zwischen den offenen und geschlossenen Positionen auch auf die unteren Flügel- und
Rahmenelemente (3a, 4a) zu oder von diesen weg zu verschwenken.
3. Fenster nach Anspruch 1 oder 2, wobei ein Antrieb, wie ein Kettentrieb (23), das obere
Flügelelement (3b) mit dem oberen Rahmenelement (4b) verbindet, wobei eine der Druckfedern
auf jeder Seite des Antriebs positioniert ist.
4. Fenster nach einem der vorhergehenden Ansprüche, wobei wenigstens ein Kopf (18, 19)
von wenigstens einer der Druckfedern als eine kugelartige, vorzugsweise halbkugelförmige
Verbindung, geformt ist.
5. Fenster nach einem der vorhergehenden Ansprüche, ferner aufweisend ein Verstärkungselement,
vorzugsweise in der Form einer en Metallschiene (16a), das Angriffspunkte der Druckfedern
auf dem Fensterrahmen (4) und/oder dem Flügel (3) jeweils so verbindet, dass es horizontale
Kraftkomponenten, die durch die Druckfedern auf den Fensterrahmen (3) und/oder den
Fensterflügel (4) ausgeübt werden, aufnimmt.
6. Fenster nach einem der Ansprüche 1 bis 5,
wobei das Fenster einen Satz von Teilen zum Federbelasten des Fensterflügels (3) in
Bezug auf den Fensterrahmen (4) eines Fensters aufweist, wobei der Satz von Teilen
eine Druckfeder, wie eine Gasfeder (10, 11); und
ein Lagerelement (12-15), das dazu angepasst ist, an dem Fensterflügel (3) bzw. dem
Fensterrahmen (4) angebracht zu werden, zur Aufnahme eines Kopfes (18, 19) der Druckfeder,
aufweist, dadurch gekennzeichnet, dass
das Lagerelement (12-15) mit einem länglichen Träger (15a) ausgestattet ist; und
wenigstens einer der Köpfe (18, 19) der Druckfeder als eine kugelartige, vorzugsweise
halbkugelförmige Verbindung geformt ist, die dazu angepasst ist, lösbar, verschiebbar
und vorzugsweise drehbar in dem länglichen Träger (15a) des Lagerelements (12-15)
verankert zu werden.
7. Fenster nach Anspruch 6, wobei der Satz von Teilen zwei Lagerelemente (12-15) aufweist,
wobei beide Lagerelemente (12-15) mit entsprechenden länglichen Trägern (15a) ausgestattet
sind, und beide Köpfe (18, 19) der Druckfeder als kugelartige, vorzugsweise halbkugelförmige
Verbindungen geformt sind, die dazu angepasst sind, lösbar und verschiebbar in den
entsprechenden länglichen Trägern (15a) der Lagerelemente (12-15) verankert zu werden.
8. Fenster nach Anspruch 6 oder 7, wobei der Satz von Teilen ferner ein Schutzelement
(17) aufweist, das an dem Lagerelement (12-15) festgelegt ist und einen Vorsprung
(17a) aufweist, der an die Druckfeder in einem montierten Zustand des Satzes von Teilen
anstößt, so dass es ein Lösen der Druckfeder von dem Lagerelement (12-15) verhindert.
9. Fenster nach einem der Ansprüche 6-8,
wobei der Satz von Teilen ferner eine weitere Druckfeder, eine Rahmeneinheit mit einem
Kettentrieb (23) und zwei Lagerelemente (12-15) und eine Flügeleinheit mit zwei Lagerelementen
(12-15) aufweist, wobei vorzugsweise die Rahmeneinheit und/oder die Flügeleinheit
Angriffspunkte der Druckfedern auf dem Fensterrahmen und/oder dem Flügel jeweils so
verbindet, dass horizontale Kraftkomponenten, die durch die Druckfedern auf den Fensterrahmen
und/oder den Fensterflügel ausgeübt werden, absorbiert werden.
10. Verfahren zum Montieren eines Fensters nach einem der Ansprüche 1-9, aufweisend die
folgenden Schritte: Bereitstellen eines oberen (3b), eines unteren (3a) und zwei seitlicher
Flügelelemente, die einen Fensterflügel (3) definieren, eines oberen (4b), eines unteren
(4a) und zwei seitlicher Rahmenelemente (4c), die einen Fensterrahmen (4) definieren,
wobei das untere Flügelelement (3b) schwenkbar mit dem unteren Rahmenelement (4b)
mittels eines Schwenklagers, das eine Schwenkachse definiert, verbunden ist; Bereitstellen
von wenigstens zwei Druckfedern, wie Gasfedern (10, 11), die jeweils zwei Köpfe (18,
19) aufweisen; und Verbinden des oberen Flügelelements (3b) mit dem oberen Rahmenelement
(4b) mittels der Druckfedern, so dass eine auf den Fensterflügel (3) wirkende Federkraft
in Richtung einer offenen Position bereitgestellt wird, indem die Druckfedern so positioniert
werden, dass sie in Richtungen aufeinander zu oder voneinander weg verschwenken können,
während der Fensterflügel (3) in Bezug auf den Fensterrahmen (4) zwischen der offenen
und einer geschlossenen Position des Fensters verschwenkt.
11. Verfahren nach Anspruch 10, ferner aufweisend den Schritt des Bereitstellens eines
Antriebs, wie eines Kettentriebs (23), und Verbinden des Fensterflügels (3) mit dem
Fensterrahmen (4) mittels des Antriebs zum Verschwenken des Fensterflügels (3) in
Bezug auf den Fensterrahmen (4) zwischen den offenen und geschlossenen Positionen
des Fensters.
12. Verfahren nach Anspruch 10 oder 11, ferner aufweisend den Schritt des Verankerns von
wenigstens einem Kopf (18, 19) von jeder Druckfeder in einem entsprechenden Lagerelement
(12-15), so dass der Kopf verschiebbar, drehbar in Bezug auf das Lagerelement (12-15)
und/oder lösbar von dem Lagerelement (12-15) ist.
1. Fenêtre comprenant
un organe de châssis de dessus (3b), un organe de châssis de dessous (3a) et deux
organes de châssis de côté définissant un châssis de fenêtre (3), et un organe de
cadre de dessus (4b), un organe de cadre de dessous (4a) et deux organes de cadre
de côté (4c) définissant un cadre de fenêtre (4), ledit organe de châssis de dessous
(3a) étant raccordé en pivotement audit organe de cadre de dessous (4a) au moyen d'une
charnière pivot définissant un axe de pivot ; et
deux ressorts de compression, tels que des ressorts à gaz (10, 11), chacun ayant deux
têtes (18, 19) et raccordant ledit châssis de fenêtre (3) et ledit cadre de fenêtre
(4) de manière à fournir une force de ressort sur ledit châssis de fenêtre (3) vers
une position ouverte de ladite fenêtre,
lesdits ressorts de compression raccordent ledit organe de châssis de dessus (3b)
audit organe de cadre de dessus (4b) et sont adaptés pour pivoter dans des directions
vers ou en éloignement l'un de l'autre pendant un pivotement dudit châssis de fenêtre
(3) relativement audit cadre de fenêtre (4) entre ladite position ouverte et une position
fermée de ladite fenêtre,
ledit châssis de fenêtre (3) et ledit cadre de fenêtre (4) comprennent chacun des
organes d'appui (13, 14 ; 12, 15) destinés à recevoir des têtes respectives (18, 19)
desdits ressorts de compression, au moins une tête (18, 19) de chaque ressort de compression
étant niché dans un organe d'appui (12-15) respectif de manière à être rotatif relativement
à et dégageable dudit organe d'appui (12-15),
caractérisé en ce que
chaque organe d'appui (12-15), dans lequel une tête (18, 19) d'un dit ressort de compression
respectif est nichée de façon dégageable, comprend un plateau (15a), qui est oblong
dans une direction parallèle auxdits organes de cadre et de châssis de dessus (4b,
3b) de sorte que chaque tête de ressort nichée librement et de façon dégageable (18,
19) puisse coulisser dans ledit organe d'appui (12-15) dans ladite direction.
2. Fenêtre selon la revendication 1, dans laquelle lesdits ressorts de compression sont
adaptés pour également pivoter vers ou en éloignement desdits organes de châssis et
de cadre de dessous (3a, 4a) pendant un pivotement entre lesdites positions ouverte
et fermée.
3. Fenêtre selon la revendication 1 ou 2, dans laquelle un moyen d'entraînement, tel
qu'un opérateur de chaîne (23), raccorde ledit organe de châssis de dessus (3b) audit
organe de cadre de dessus (4b), l'un desdits ressorts de compression étant positionné
sur chaque côté dudit moyen d'entraînement.
4. Fenêtre selon l'une quelconque des revendications précédentes, dans laquelle au moins
une tête (18, 19) d'au moins l'un desdits ressorts de compression est formée à la
manière d'un ballon, de préférence une articulation hémisphérique.
5. Fenêtre selon l'une quelconque des revendications précédentes, comprenant en outre
un organe de renforcement, de préférence sous la forme d'un rail métallique oblong
(16a), raccordant des points d'attaque desdits ressorts de compression sur ledit cadre
de fenêtre (4) et/ou châssis (3) de fenêtre, respectivement, de manière à absorber
des composantes de force horizontales exercées par les ressorts de compression sur
ledit cadre de fenêtre (3) et/ou châssis de fenêtre (4).
6. Fenêtre selon l'une quelconque des revendications 1 à 5, dans laquelle ladite fenêtre
inclut un jeu de pièces pour charger deux ressorts ledit châssis de fenêtre (3) relativement
audit cadre de fenêtre (4) d'une fenêtre, ledit jeu de pièces comprenant
un ressort de compression, tel qu'un ressort à gaz (10, 11) ; et
un organe d'appui (12-15) adapté pour une fixation audit châssis de fenêtre (3) et
audit cadre de fenêtre (4), respectivement, en vue de recevoir une tête (18, 19) dudit
ressort de compression,
caractérisée en ce que
ledit organe d'appui (12-15) est pourvu d'un plateau oblong (15a) ; et
au moins l'une desdites têtes (18, 19) dudit ressort de compression est formée à la
manière d'un ballon, de préférence une articulation hémisphérique adaptée pour être
nichée de façon dégageable, coulissante et de préférence rotative dans ledit plateau
oblong (15a) dudit organe d'appui (12-15).
7. Fenêtre selon la revendication 6, dans laquelle le jeu de pièces comprend deux organes
d'appui (12-15), les deux organes d'appui (12-15) étant pourvus de plateaux oblongs
(15a) respectifs, et de deux têtes (18, 19) dudit ressort de compression étant formées
à la manière d'un ballon, de préférence des articulations hémisphériques adaptées
pour être nichées de façon dégageable et coulissante dans lesdits plateaux oblongs
(15a) respectifs desdits organes d'appui (12-15).
8. Fenêtre selon la revendication 6 ou 7, dans laquelle le jeu de pièces comprend en
outre un organe de protection (17) assujetti audit organe d'appui (12-15) et comprenant
une saillie (17a) aboutant ledit ressort de compression dans un état assemblé dudit
jeu de pièces de manière à entraver le dégagement dudit ressort de compression dudit
organe d'appui (12-15).
9. Fenêtre selon l'une quelconque des revendications 6 à 8, dans laquelle le jeu de pièces
comprend en outre un ressort de compression identique supplémentaire, une unité de
cadre avec un opérateur de chaîne (23) et deux dits organes d'appui (12-15) et une
unité de châssis avec deux dits organes d'appui (12-15), de préférence ladite unité
de cadre et/ou ladite unité de châssis raccordent des points d'attaque desdits ressorts
de compression sur ledit cadre et/ou châssis de fenêtre, respectivement, de manière
à absorber des composantes de force horizontales exercées par lesdits ressorts de
compression sur ledit cadre de fenêtre et/ou ledit châssis de fenêtre.
10. Procédé de montage d'une fenêtre selon l'une des revendications 1 à 9, comprenant
les étapes de :
fourniture d'un organe de châssis de dessus (3b), d'un organe de châssis de dessous
(3a) et de deux organes de châssis de côté définissant un châssis de fenêtre (3),
d'un organe de cadre de dessus (4b), d'un organe de cadre de dessous (4a) et de deux
organes de cadre de côté (4c) définissant un cadre de fenêtre (4), ledit organe de
châssis de dessous (3b) étant raccordé en pivotement audit organe de cadre de dessous
(4b) au moyen d'une charnière pivot définissant un axe de pivot ; la fourniture d'au
moins deux ressorts de compression, tels que des ressorts à gaz (10, 11), chacun ayant
au moins deux têtes (18, 19) ; et le raccordement dudit organe de châssis de dessus
(3b) audit organe de cadre de dessus (4b) au moyen desdits ressorts de compression
de manière à fournir une force de ressort sur ledit châssis de fenêtre (3) vers une
position ouverte, en positionnant lesdits ressorts de compression de manière à ce
qu'il soit pivotant dans des directions vers et en éloignement les uns des autres
pendant un pivotement dudit châssis de fenêtre (3) relativement audit cadre de fenêtre
(4) entre ladite position ouverte et une position fermée de ladite fenêtre.
11. Procédé selon la revendication 10, comprenant en outre l'étape de fourniture d'un
moyen d'entraînement, tel qu'un opérateur de chaîne (23), et de raccordement dudit
châssis de fenêtre (3) audit cadre de fenêtre (4) au moyen dudit moyen d'entraînement
pour faire pivoter ledit châssis de fenêtre (3) relativement audit cadre de fenêtre
(4) entre lesdites positions ouverte et fermée de ladite fenêtre.
12. Procédé selon la revendication 10 ou 11, comprenant en outre l'étape de nichage d'au
moins une tête (18, 19) de chaque dit ressort de compression dans un organe d'appui
(12-15) respectif de manière à être coulissant, rotatif relativement et/ou dégageable
dudit organe d'appui (12-15).
REFERENCES CITED IN THE DESCRIPTION
This list of references cited by the applicant is for the reader's convenience only.
It does not form part of the European patent document. Even though great care has
been taken in compiling the references, errors or omissions cannot be excluded and
the EPO disclaims all liability in this regard.
Patent documents cited in the description