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EP 2 383 413 B1 |
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EUROPEAN PATENT SPECIFICATION |
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Mention of the grant of the patent: |
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20.04.2016 Bulletin 2016/16 |
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Date of filing: 27.04.2011 |
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International Patent Classification (IPC):
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Vent operating mechanism
Entlüftungsbetriebsmechanismus
Mécanisme de commande d'évent
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Designated Contracting States: |
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AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL
NO PL PT RO RS SE SI SK SM TR |
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Priority: |
27.04.2010 GB 201006989
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Date of publication of application: |
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02.11.2011 Bulletin 2011/44 |
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Proprietor: Glazing Vision Limited |
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Diss
Norfolk IP22 4NX (GB) |
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Inventors: |
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- Dunn, Jeremy
Halstead
Essex CO9 4EE (GB)
- Gibson, Graham
Cambridgeshire CB5 0AG (GB)
- Lempriere, Nigel
Maldon
Essex CM9 6FF (GB)
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Representative: Sanderson & Co. |
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D2 Knowledge Gateway
Nesfield Road Colchester, Essex CO4 3ZL Colchester, Essex CO4 3ZL (GB) |
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References cited: :
DE-U1- 29 710 369 FR-A1- 2 639 057 US-A1- 2007 271 848
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DE-U1-202007 005 957 JP-A- 7 217 306
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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] This invention relates to an operating mechanism for a vent assembly for a building
and in its preferred aspects to an operating mechanism for a smoke vent for the roof
of a building. Though the operating mechanism of this invention could be used in other
applications, it will in the following be described solely in relation to a mechanism
for opening and closing a smoke vent.
[0002] Smoke vents are frequently fitted to commercial, public and industrial building in
order to allow smoke to escape in the event of a fire, thereby enhancing the ability
of people to evacuate the building before being overcome by the smoke and fumes of
the fire. Such a smoke vent is fitted with an automatic mechanism to effect opening
of the vent should there be a fire in the building. A control unit may receive signals
from fire or smoke detectors and drives an actuator associated with the smoke vent,
to effect opening of that vent. A smoke vent of this kind may equally be fitted to
a residential dwelling and it is expected that this will increasingly be adopted.
[0003] A typical smoke vent has a frame secured to the roof of the building and a panel
hinged along one edge to a side of the frame, the panel normally closing the opening
defined by the frame. An actuator to perform hinging movement of the panel may be
disposed centrally of the panel to act between the panel and the frame, or a pair
of actuators may be disposed one to each side of the frame. Various designs of smoke
vents are described for example in
FR2639057A1,
DE29710369U1,
JP07217306A,
DE202007005957U1,
US2007/271848A1,
US3728956 and
US4473979.
[0004] It is important that a roof mounted smoke vent has good thermal insulating properties
in order to minimise heat loss through the vent at times when the interior of the
building is heated for environmental comfort for the occupants, and there is no fire.
To that end, the hinged panel may be double-glazed and secured to a thermally insulating
frame. A double-glazed panel is relatively heavy especially for a large smoke vent
and if the panel is hinged along one edge and the operating mechanism is connected
to the panel part way along a side thereof the load on the operating mechanism and
which the operating mechanism must move can be very large.
[0005] Though in the past a smoke vents may have been used which opened through only an
acute angle, modern building regulations require a hinged panel of a smoke vent to
be moved through more than 90°, to ensure that there is adequate venting of smoke
no matter what the direction of the wind or whether the vent is mounted on one side
face of a pitch roof. Typically, the regulations require the panel of a smoke vent
to be movable through at least 135° from its fully closed setting. In the case of
a double-glazed panel, this presents particular engineering problems to ensure that
once the panel has moved over centre (i.e. more than 90° from the fully closed setting
in the case of a vent on a substantially flat roof) the operating mechanism is able
to hold the panel at the required setting and moreover to pull the panel back to the
90° setting, before resisting self-closing of the panel under gravity.
[0006] The above problems dictate that a relatively strong and so massive and powerful operating
mechanism must be employed and yet the space and weight capacity available in the
vicinity of a roof vent may be very restricted. This invention aims at providing an
operating mechanism for a building vent assembly which is primarily intended to serve
as a smoke vent and so which is configured to open through more than 90° from the
fully closed setting.
[0007] According to this invention, there is provided a mechanism for effecting opening
and closing movement of a panel hinged to a frame therefor, which mechanism comprises
the features of claim 1.
[0008] The configuration of the mechanism of this invention allows a connected vent panel
to be moved through a relatively large obtuse angle (and typically in the region of
120° to 145°) from the fully closed setting where the panel closes the frame of the
vent. The mechanism can be constructed to be relatively compact so that the mechanism
may be accommodated within the frame of a roof vent. Moreover, the mechanism may withstand
relatively large loads particularly at the extremes of movement, such that the mechanism
may support a relatively heavy roof vent panel moved from its closed setting through
an obtuse angle and then pull the opened panel back over centre and control movement
of the panel to its closed setting. The load on the mechanism will be increased if
snow is lying on the panel, or in freezing conditions, when ice may be holding the
panel in its closed position. Also, the mechanism must be able to open the panel and
hold it open even in strong windy conditions.
[0009] In order to allow proper operation of the mechanism, the coupling of the mechanism
connector to a vent panel allows the connector to slide with respect to the panel
in a direction normal to the axis of hinging movement of the panel, while retaining
the connector in engagement with the panel. In a preferred embodiment, a connected
panel defines a slot extending in a direction normal to the axis of hinging movement
of the panel and the connector is received in that slot while being restrained against
movement out of the slot in a direction normal to the plane of the panel. Conveniently,
the panel has a T-shaped slot and the connector has a slide element located in that
slot.
[0010] Again, to allow proper operation of the mechanism, the connector is pivoted to the
support.
[0011] In a preferred embodiment, the support may have an extension beyond the connection
thereto of the parallelogram linkage, the connector being mounted on that extension
of the support.
[0012] The elongate base member of the mechanism preferably is of channel-shaped cross-section
having a base wall with upstanding side walls and the parallelogram linkage comprises
two pairs of links arranged with the links of each pair on opposed side walls of the
base member. The links of each pair are pivoted about common axes both to the side
wall of the base member and to the support.
[0013] The power drive assembly may comprise an electric motor drivingly connected to a
lead screw rotatably mounted to the side walls of the base member, so as to extend
therealong. With such a power drive assembly, the slider may comprise a nut threadingly
engaged with the lead screw and guided to slide along the length of the base member.
For example, the side walls of the channel-section base member may have opposed slots
extending therealong, the nut having a pair of laterally-projecting guide pins received
in the slots.
[0014] The vent operating mechanism may have a control system therefor and which controls
the operation of the power drive assembly, either under manual or automatic control
on the basis of an input from at least one environmental sensor. That sensor may sense
at least one of air temperature, concentration of smoke particles in the air and air
contamination. In the case of a panel having a pair of operating mechanisms, one to
each side of the frame supporting a hinged panel, the control system should serve
to keep the two mechanisms operating in synchronism, so as to avoid any twisting of
the hinged panel, during operation.
[0015] This invention extends to an operating mechanism as described above in combination
with a frame assembled from a plurality of frame members and a panel hinged to one
of the frame members, wherein the elongate base member is attached to or forms a part
of a frame member extending normally to that frame member to which the panel is hinged.
[0016] Further, this invention extends to a combination of an operating mechanism and a
frame as just-described, together with a panel hinged to one side of the frame and
the connector of the mechanism connected to the panel, for sliding movement with respect
thereto in a direction normal to the hinging axis of the panel. The panel may comprise
a frame supporting a double-glazed unit in which case the connector of the mechanism
connects to the frame of the panel. In a typical application for a smoke vent, two
operating mechanisms may be provided, one to each side of the panel and respectively
connected to the sides of the panel frame.
[0017] By way of example only, one specific embodiment of a roof vent incorporating an operating
mechanism of this invention and having a thermal break frame will now be described
in detail, reference being made to the accompanying drawings in which:-
Figure 1 is an isometric view of the complete roof vent, when the panel thereof is
in its fully opened setting;
Figure 2 is a side view of the roof vent of Figure 1 and showing the movable panel
in a partly opened and a fully opened setting;
Figure 3 is a detail view on an enlarged scale of a cross-section through the roof
vent frame together with part of the double-glazed panel;
Figures 4 and 5 are isometric views of the operating mechanism when set to have the
panel fully closed and fully opened, respectively; and
Figures 6 and 7 are side views of the operating mechanism when set to have the panel
fully closed and fully opened, respectively.
[0018] The roof vent comprises a generally rectangular frame 10 having four sides 11,12,13,14,
a double-glazed panel 15 being hinged along one edge 16 to side 11 of the frame. The
panel 15 is of the same shape as the frame 10 and of an appropriate size to co-operate
therewith. The panel is movable between a fully closed setting (not shown) where the
underside of the panel engages the upper surface of the frame and a fully opened setting
where the panel has been hinged through approximately 140°, as shown in Figure 2.
The frame 10 is constructed from inner and outer metallic frame members 17,18 a thermal
break being provided between those frame members. The outer frame member defines a
chamber 19 along each side of the frame 11 and a pair of operating mechanisms for
the panel are located in the chambers 19 of the two opposed frame sides 12,14 adjoining
the hinge side 11. These various components will now be described in more detail.
[0019] Referring initially to Figure 3, the configuration of the frame 10 and the panel
15 is shown in more detail. The inner frame member 17 is an L-shaped aluminium extrusion
having limbs 21,22. The outer frame member 18 is generally of channel-shaped cross-section
having a base wall 23 and upstanding flanks 24,25, the base wall 23 being opposed
to limb 21 of the inner frame member and flank 24 being opposed to limb 22. Elongate
blocks 26,27 of high performance insulating material are located between the opposed
parts of the inner and outer frame members, for the full length thereof. Further,
the inner and outer frame members are maintained at the required separation by thermal
break elongate strips 28,29,30,31 of a plastics material such as a polyamide. Each
long edge of strips 28 and 31 is formed with an enlarged head which is received in
a corresponding groove 32 in the associated frame member. The grooves are then crimped
on to the heads of the strips so as to grip the strips and maintain the inner and
outer frame members in the required relative disposition. Though the long edges of
strips 29 and 30 are also enlarged, those heads are received in simple grooves to
facilitate assembly whilst still providing support.
[0020] A skirt 34 for the outer frame member 18 is bonded to a flange 35 projecting from
the base wall 23 of the outer frame member and depends downwardly from that frame
member. The frame rests on roof members (not shown) defining an opening through the
roof and is secured to those members by fastenings received in a channel 36 formed
in the lower edge of the skirt. Once secured in this way, the channel 36 may be closed
by a cap strip (not shown). A further channel 37 is formed in leg 21 of the inner
frame member, to receive an elastomeric sealant for effecting a seal to the roof members.
[0021] The double-glazed panel 15 has a rectangular frame 39 of extruded aluminium sections
joined together at the corners and supporting a double-glazing unit having inner and
outer glass panes 40,41 held at the required separation by a spacer bar 42. Each frame
section defines an inwardly-projecting flange 43 to which the inner glass pane 40
is adhered by a bead 44 of adhesive. A foam tape strip 45 extends along the flange
43, further from the pane edge than the bead 44, and serves to support the pane during
setting of the adhesive. A high-temperature silicon rubber gasket 46 is attached to
the free edge of the flange 43, that gasket having a lip 47 to effect a seal against
the inner surface of the inner pane 40, the gasket also having a cylindrical resiliently
deformable portion 48 for effecting a seal to the upper edges of limb 22 and flank
24 of the inner and outer frame members, respectively, when the panel is in its closed
setting.
[0022] Each panel frame section also defines an upper surface 50 to which the outer glass
pane 41 is adhered by a bead 51 of adhesive. The periphery of the outer pane 41 is
sealed to the frame section by a silicon weather-seal strip 52. A further resiliently
deformable gasket 53 is fitted to a lower surface 54 of the frame section to co-operate
with the upper edge of flank 25 of the outer frame member 18. Figure 3 shows the panel
15 in its fully closed setting where the gaskets 46 and 53 partially compressed against
the corresponding upper edges of the inner and outer frame members 17,18, thereby
effecting a seal thereto.
[0023] Accommodated in the chambers 19 of the sides 12 and 14 of the frame 10 are respective
opening mechanisms, to perform hinging movement of the panel 15 from its fully closed
setting to its fully opened setting. Each mechanism has a channel section 56 provided
with tabs 57 projecting laterally from below the base of that channel section, which
tabs are adapted to be received in a T-groove 58 formed in the base wall 23 of the
outer frame member 18. Two pins 59 are arranged one at each end of the channel section
56 and serve to hold the section at the required location with respect to the length
of the receiving frame member.
[0024] An electric motor 60 is arranged within the channel section 56 adjacent one end and
drives a lead screw 61 rotatably carried in bearings 62 mounted in the channel section.
A nut 63 is threaded on to the lead screw and is slidably disposed within the channel
section, the nut having laterally projecting pivot pins 64 received in elongate slots
65 in the side walls 66 of the channel section.
[0025] Pivoted to each side wall 66 of the channel section 56 and at spaced locations are
first and second links 69,70, there being a pair of first links 69 and a pair of second
links 70 with the links of each pair pivoted about a common axis on the opposed side
walls of the base member. Links 69 are connected together by cross-members 71 and
links 70 by cross-members 72. The other ends of the links 69,70 are pivoted to a support
73 at the same spacing, such that the links, support 73 and the channel section 56
together form a parallelogram linkage in which the support remains parallel to the
channel section, irrespective of the pivoting of the links. The support 73 is also
constructed from a pair of arms connected together by a cross-member 74. An operating
arm 75, again in the form of a pair of parallel links connected together by a cross-member
76, is pivoted at one end to the pivot pins 64 of the nut 63 and at its other end
to each of the two links 69, adjacent the support 73. A connector 77 is pivoted to
an extension of the support 73 and is adapted for connection to the panel 15, that
connector being received in a T-slot 78 (Figure 3) formed in the lower surface 54
of the panel frame. The T-slot 78 is relieved at 79 (Figure 1) to allow the connector
to be engaged in the T-slot 78 during assembly of the roof vent, whereafter the connector
may slide along that part of the T-slot between the relieved part and the hinged edge
of the panel, as dictated by the geometry of the mechanism when operated.
[0026] Also shown in Figures 1, 2 and 4 to 7 are bump-stops 80 disposed adjacent the side
13 of the frame, remote from the hinged side 11. The panel 15 engages those bump-stops
80 when closed and so the compression of the gaskets 46 and 53 is limited thereby.
The bump-stops are adjustable, in order to allow optimum sealing of the panel when
closed.
[0027] Though not shown, a control unit is provided for the operating mechanisms, to control
the supply of power to the electric motors 60. Environmental sensors are connected
to the control unit, monitoring for example smoke particles in the air at various
places within the building in which the vent is installed. Sensors may also be provided
for air temperature and also contaminants that may be present in the air, such as
hydrocarbons. The control unit serves to cause operation of the motors 60 to open
the vent by hinging the panel from its closed position, in the event that a sensed
parameter exceeds a pre-set value.
[0028] The control system should drive in synchronism the electric motors 60 of the two
mechanisms so as to avoid any twisting of the hinged panel 15 during operation. Thus
may be achieved by fitting hall effect sensors to the motors and which provide outputs
to the control system, so that the speeds of operation of the two motors may be controlled
to be the same.
[0029] The mechanism described above is configured to perform hinging movement of the double-glazed
panel 15, between a fully closed setting (Figure 3) and a fully opened setting (Figure
2), or to a chosen setting between those extremes, also shown in Figure 2. Operation
of the motor rotates the lead screw 61 which drives the nut 63 along the length of
the channel section 56 in a direction depending on the sense of rotation of the lead
screw. This changes the geometry of the operating arm 75 with respect to the lead
screw and the pair of links 69, so operating the parallelogram linkage. The exact
configuration of the links 69,70, operating arm 75 and the support 73 is determined
so that the full required range of movement of the panel 15 may be achieved, corresponding
to the full movement of the nut 63 along the slots 65 of the channel section 56. Moreover,
the configuration of the mechanism allows a relatively high force to be achieved for
moving the panel between its fully closed and fully opened settings, both when opening
the vent and when closing the vent.
1. A vent operating mechanism for effecting opening and closing movement of a panel (15)
hinged to a frame (10) therefor, which mechanism comprises:
- an elongate base member (56) for attachment directly or indirectly to the frame
(10) or forming a part thereof;
- a support (73);
- a parallelogram linkage (69,70) connecting the support (73) to the base member (56);
- a slider (63) arranged for movement along the base member (56);
- a power drive assembly (60,61) to effect said movement of the slider (63);
- an operating arm (75) connecting the slider (63) to the support (73) or the parallelogram
linkage (69,70), such that movement of the slider effects hinging movement of the
parallelogram linkage (69,70); and
- a connector (77) mounted on the support (73) and arranged for connection to the
panel (15) hinged to the frame (10);
characterised in that the connector (77) is pivoted to the support (73), the connection of the connector
(77) to the panel (15) allowing the connector (77) to slide with respect to the panel
(15) in a direction normal to the axis of hinging movement of the panel (15) whereby
operation of the power drive assembly (60,61) moves the slider (63) along the base
member (56) so changing the relationship between the base member (56) and the support
(73) by varying the geometry of the parallelogram linkage (69,70), and the movement
of the support (73) relative to the elongated base member (56) slides the connector
(77) along the connected panel (15) to cause the panel (15) to effect hinging movement
relative to the frame (10).
2. A mechanism as claimed in claim 1, wherein the connected panel (15) defines a slot
(74) extending in a direction normal to the axis of hinging movement of the panel
and the connector (77) is received in said slot and is restrained against movement
out of the slot in a direction normal to the plane of the panel.
3. A mechanism as claimed in claim 2, wherein the slot (74) of a connected panel (15)
is of T-shaped cross-section.
4. A mechanism as claimed in any of the preceding claims, wherein the support (73) has
an extension beyond the connection thereto of the parallelogram linkage (70) and the
connector (77) is mounted on the extension of the support.
5. A mechanism as claimed in any of the preceding claims, wherein the base member (56)
is of channel-shaped cross-section having a base wall with upstanding side walls (66)
and the parallelogram linkage (69,70) comprises two pairs of links arranged with the
links of each pair on opposed side walls (66) of the base member.
6. A mechanism as claimed in claim 5, wherein the power drive assembly (60,61) is mounted
between the side walls (66) of the base member (56).
7. A mechanism as claimed in claim 6, wherein the power drive assembly comprises an electric
motor (60) drivingly connected to a lead screw (61) rotatably mounted between the
side walls (66) of the base member (56) to extend therealong.
8. A mechanism as claimed in claim 7, wherein the slider comprises a nut (63) threadingly
engaged with the lead screw (61) and guided to slide along the base member (56).
9. A mechanism as claimed in claim 8, wherein the side walls (66) of the channel-section
base member (56) have opposed slots (65) extending therealong and the nut (63) has
a pair of laterally-projecting guide pins (64) received in the slots.
10. A mechanism as claimed in any of the preceding claims in combination with the frame
(10) assembled from a plurality of frame members (17,18) and the panel (15) directly
hinged to one of the frame members (17,18), wherein the elongate base member (56)
is attached to a frame member (18) extending normally to said frame member to which
the panel (10) is directly hinged.
11. A mechanism as claimed in any of the preceding claims in combination with a control
system for the power drive assembly (60,61) and arranged to effect the operation thereof,
either under manual or automatic control depending on an input from at least one environmental
sensor.
12. A mechanism as claimed in claim 11, wherein the environmental sensor senses at least
one of air temperature, concentration of smoke particles in air and air contamination.
1. Lüftungsbetriebsmechanismus zum Bewirken einer öffnenden und schließenden Bewegung
einer Platte (15), die schwenkbar an einem Rahmen (10) dafür angebracht ist, wobei
der Mechanismus aufweist:
- ein längliches Basisteil (56), das zur direkten oder indirekten Anbringung an dem
Rahmen (10) vorgesehen ist oder einen Teil davon bildet,
- einen Träger (73),
- eine Parallelogrammaufhängung (69, 70), die den Träger (73) mit dem Basisteil (56)
verbindet,
- einen Schieber (63), der zur Bewegung entlang des Basisteils (56) ausgestaltet ist,
- eine Kraftantriebsanordnung (60, 61), um Bewegung des Schiebers (63) zu bewirken,
- einen Betätigungsarm (75), der den Schieber (63) mit dem Träger (73) oder mit der
Parallelogrammaufhängung (69, 79) verbindet, so dass Bewegung des Schiebers eine schwenkende
Bewegung der Parallelogrammaufhängung (69, 70) bewirkt, und
- ein Verbindungselement (77), das an dem Träger (73) gelagert ist und zur Verbindung
mit der Platte (15) ausgestaltet ist, die schwenkbar an dem Rahmen 810) angebracht
ist,
dadurch gekennzeichnet, dass das Verbindungselement (77) schwenkbar an dem Träger (73) angebracht ist, wobei die
Verbindung des Verbindungselements (77) mit der Platte (15) es dem Verbindungselement
(77) erlaubt, in Bezug auf die Platte (15) in einer Richtung senkrecht zu der Achse
der Schwenkbewegung der Platte (15) verschoben zu werden, wodurch der Betrieb der
Kraftantriebsanordnung (60, 61) den Schieber (63) entlang des Basisteils (56) bewegt,
um so die Beziehung zwischen dem Basisteil (56) und dem Träger (73) zu verändern,
indem die Geometrie der Parallelogrammaufhängung (69, 70) variiert wird, und die Bewegung
des Trägers (73) relativ zu dem länglichen Basisteil (56) das Verbindungselement (77)
entlang der verbundenen Platte (15) verschiebt, um zu bewirkenm, dass die Platte eine
Schwenkbewegung relativ zu dem Rahmen (10) ausführt.
2. Mechanismus wie in Anspruch 1 beansprucht, wobei die verbundene Platte (15) einen
Schlitz (74) definiert, der in einer Richtung senkrecht zu der Achse der Schwenkbewegung
der Platte verläuft, und wobei das Verbindungselement (77) in dem Schlitz aufgenommen
ist und gegen Bewegung aus dem Schlitz heraus in einer Richtung senkrecht zur Ebene
der Platte gesichert ist.
3. Mechanismus wie in Anspruch 2 beansprucht, wobei der Schlitz (74) einer verbundenen
Platte (15) im Querschnitt T-förmig ist.
4. Mechanismus wie in einem der vorhergehenden Ansprüche beansprucht, wobei der Träger
(73) eine Verlängerung über die Verbindung mit der Parallelogrammaufhängung (70) hinaus
hat und das Verbindungselement (77) auf der Verlängerung des Trägers gelagert ist.
5. Mechanismus wie in einem der vorhergehenden Ansprüche beansprucht, wobei das Basisteil
(56) einen kanalförmigen Querschnitt mit einer Bodenwand mit aufwärtsstehenden Seitenwänden
(66) hat und die Parallelogrammaufhängung (69, 70) zwei Paare von Stangen aufweist,
wobei die Stangen jedes Paars an gegenüberliegenden Seitenwänden (66) des Basisteils
angeordnet sind.
6. Mechanismus wie in Anspruch 5 beansprucht, wobei die Kraftantriebsanordnung (60, 61)
zwischen den Seitenwänden (66) des Basisteils (56) angebracht ist.
7. Mechanismus wie in Anspruch 6 beansprucht, wobei die Kraftantriebsanordnung einen
Elektromotor (60) aufweist, der antriebsmäßig mit einer Gewindespindel (61) verbunden
ist, die drehbar zwischen den Seitenwänden (66) des Basisteils (56) gelagert ist,
um sich daran entlang zu erstrecken.
8. Mechanismus wie in Anspruch 7 beansprucht, wobei der Schieber eine Mutter (63) aufweist,
die im Gewindeeingriff mit der Gewindespindel (61) steht und geführt ist, um entlang
des Basisteils (56) zu gleiten.
9. Mechanismus wie in Anspruch 8 beansprucht, wobei die Seitenwände (66) des kanalförmigen
Basisteils (56) gegenüberliegende, sich daran entlang erstreckende Schlitze (65) haben
und die Mutter (63) ein Paar von seitlich vorstehenden Führungsstiften (64) aufweist,
die in den Schlitzen aufgenommen sind.
10. Mechanismus wie in einem der vorhergehenden Ansprüche beansprucht in Kombination mit
dem Rahmen (10), der aus einer Vielzahl von Rahmenteilen (17, 18) aufgebaut ist, und
der Platte (15), die schwenkbar direkt an einem der Rahmenteile (17, 18) angebracht
ist, wobei das längliche Basisteil (56) an einem Rahmenteil (18) befestigt ist, das
senkrecht zu demjenigen Rahmenteil verläuft, an dem die Platte (10) direkt schwenkbar
angebracht ist.
11. Mechanismus wie in einem der vorhergehenden Ansprüche beansprucht in Kombination mit
einem Steuersystem für die Kraftantriebsanordnung (60, 61), das dazu eingerichtet
ist, um deren Betrieb zu bewirken, entweder unter manueller oder automatischer Kontrolle,
abhängig von einer Eingabe von wenigstens einem Umgebungssensor.
12. Mechanismus wie in Anspruch 11 beansprucht, wobei der Umgebungssensor wenigstens eines
von Lufttemperatur, Konzentration von Rauchpartikeln in der Luft und Luftverunreinigung
erfasst.
1. Mécanisme de commande d'évent pour réaliser un mouvement d'ouverture et de fermeture
d'un panneau (15) articulé sur un cadre (10), le mécanisme comprenant :
- un élément de base allongé (56) destiné à être attaché directement ou indirectement
au cadre (10) ou formant une partie du cadre ;
- un support (73) ;
- un parallélogramme articulé (69, 70) reliant le support (73) à l'élément de base
(56) ;
- un coulisseau (63) agencé pour se déplacer le long de l'élément de base (56) ;
- un ensemble d'entraînement (60, 61) pour entraîner le mouvement du coulisseau (63)
;
- un bras de commande (75) reliant le coulisseau (63) au support (73) ou au parallélogramme
articulé (69, 70), de manière à ce que le déplacement du coulisseau entraîne une articulation
du parallélogramme articulé (69, 70) ;
et
- un connecteur (77) monté sur le support (73) et agencé pour être attaché au panneau
(15) articulé sur le cadre (10) ;
caractérisé en ce que le connecteur (77) est en liaison pivot par rapport au support (73), la liaison du
connecteur (77) au panneau (15) permettant au connecteur (77) de coulisser par rapport
au panneau (15) dans une direction orthogonale à l'axe d'articulation du panneau (15),
l'actionnement de l'ensemble d'entraînement (60, 61) déplaçant le coulisseau (63)
le long de l'élément de base (56) et modifiant ainsi la position relative du support
(73) par rapport à l'élément de base (56) en faisant varier la géométrie du parallélogramme
articulé (69, 70), et le déplacement du support (73) relativement à l'élément de base
allongé (56) faisant coulisser le connecteur (77) le long du panneau (15) afin d'articuler
le panneau (15) par rapport au cadre (10).
2. Mécanisme selon la revendication 1, dans lequel le panneau (15) définit une rainure
(74) s'étendant dans une direction orthogonale à l'axe d'articulation du panneau et
le connecteur (77) est accueilli dans ladite rainure (74) et est empêché de sortir
de ladite rainure dans une direction orthogonale au plan du panneau.
3. Mécanisme selon la revendication 2, dans lequel la rainure (74) d'un panneau (15)
présente une section en T.
4. Mécanisme selon l'une quelconque des revendications précédentes, dans lequel le support
(73) présente un prolongement s'étendant au-delà de sa liaison avec le parallélogramme
articulé (70) et le connecteur (77) est monté sur le prolongement du support.
5. Mécanisme selon l'une quelconque des revendications précédentes, dans lequel l'élément
de base (56) présente une section en forme de canal avec une paroi de base et des
parois latérales verticales (66) et le parallélogramme articulé (69, 70) comprend
deux paires d'éléments de liaison agencés avec les éléments de liaison de chaque paire
sur les parois latérales opposés (66) de l'élément de base.
6. Mécanisme selon la revendication 5, dans lequel l'ensemble d'entraînement (60, 61)
est monté entre les parois latérales (66) de l'élément de base (56).
7. Mécanisme selon la revendication 6, dans lequel l'ensemble d'entraînement comprend
un moteur électrique (60) relié à une vis mère (61) pour l'entraîner, la vis mère
étant montée en rotation entre les parois latérales (66) de l'élément de base (56)
le long desquelles elle s'étend.
8. Mécanisme selon la revendication 7, dans lequel le coulisseau comprend un écrou (63)
en liaison hélicoïdale avec la vis mère (61) et guidé pour coulisser le long de l'élément
de base (56).
9. Mécanisme selon la revendication 8, dans lequel les parois latérales (66) de l'élément
de base à section en forme de canal (56) présentent des rainures opposées (65) s'étendant
sur leur long et l'écrou (63) comporte une paire de pions de guidage (64) faisant
saillie latéralement et étant accueillis dans les rainures.
10. Mécanisme selon l'une quelconque des revendications précédentes en combinaison avec
le cadre (10) assemblé à partir de plusieurs éléments de cadre (17, 18) et le panneau
(15) directement articulé sur l'un des éléments de cadre (17, 18), l'élément de base
allongé (56) étant attaché à un élément de cadre (18) s'étendant orthogonalement audit
élément de cadre auquel le panneau (10) est articulé directement.
11. Mécanisme selon l'une quelconque des revendications précédentes en combinaison avec
un système de commande pour l'ensemble d'entraînement (60, 61) et agencé pour le commander
soit par une commande manuelle ou automatique en fonction d'une entrée d'au moins
un capteur d'environnement.
12. Mécanisme selon la revendication 11, dans lequel le capteur d'environnement capte
au moins une température d'air, une concentration en particules de fumée dans l'air,
ou une contamination de l'air.
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