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EP 1 122 397 B1 |
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EUROPEAN PATENT SPECIFICATION |
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Mention of the grant of the patent: |
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09.06.2004 Bulletin 2004/24 |
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Date of filing: 02.02.2001 |
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International Patent Classification (IPC)7: E06B 9/04 |
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Extensible grate for protecting the opening of windows and doors
Ausziehbares Gitter zum Schutz der Öffnung von Fenstern und Türen
Grille extensible pour protéger l'ouverture de fenêtres et portes
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Designated Contracting States: |
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AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR |
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Priority: |
04.02.2000 IT BO000050
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Date of publication of application: |
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08.08.2001 Bulletin 2001/32 |
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Proprietor: Blindato Effepi S.r.l. |
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47842 S.Giovanni in Marignano (RN) (IT) |
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Inventor: |
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- Paolucci, Franco
47841 Cattolica (Rimini) (IT)
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Representative: Negrini, Elena et al |
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Agazzani & Associati S.r.l.
Via dell'Angelo Custode 11/6 40141 Bologna 40141 Bologna (IT) |
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References cited: :
DE-C- 261 328 US-A- 5 307 858 US-A- 5 809 694
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FR-A- 2 760 039 US-A- 5 657 809
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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 refers to anti-intrusion protection devices for the openings
of the doors or windows or shop-windows, particularly refers to an extensible grate
to protect the opening of windows and doors.
[0002] There are known modular grates notes for protecting doors and windows including a
series of parallel vertical uprights and almost equally spaced fixed to at least a
couple of transversal bars whose ends are provided with fixed protrusions fit to be
inserted into the posts of the windows and doors to be protected.
[0003] These kinds of grates can be extended by inserting, between the fixed protrusions
and the ends of the transversal bars, extension modules constituted by vertical uprights
fixed to transversal rods connectable to the corresponding horizontal bars so as to
extend the grate.
[0004] The main drawback of these kinds of grates or grilles consists in that said modular
grille are so-called "fixed-type" and that is the transversal bars of each grate are
rigidly fixed to the vertical posts of the related window or door. Although some of
said grates could be hinged to a post, in every case the grate width is predetermined
because the fitting of one or more extension modules in order to entirely cover the
opening to be protected.
[0005] There are also extensible grates that are constituted by a series of vertical uprights
to which connecting transversal bars are constrained by means of, for instance, a
system of levers for making, with the transversal bars, a four-bar linkage allowing
the grate to be "packaged" close to the door or window posts. Such grates have an
expensive realization cost because mobile and "packageable" and therefore necessarily
strengthened by additional elements fit inside the vertical uprights and made of,
especially the mobile transversal bars, very expensive material, such as for instance
hardened steel and carbonitrided steel.
[0006] From US-A-5 657 809 a grate with telescopically extensionable transversal bars is
known.
[0007] The main purpose of the present invention is to propose a grate allowing the on site
change of its dimensions and therefore the fitting to the opening of the windows and
the doors to be protected without making at the factory grates made to measure.
[0008] Another object is to propose a grate provided with size regulations both in height
and in width by virtue of the uprights and the extensible transversal bars allowing
the right grate assembling guaranteeing the coincidence of the lock with the uprights
although the opening posts may be out of alignment.
[0009] Further object is to propose a grate of quite cheap and highly safe and reliable.
[0010] The above mentioned objects are achieved according to the claim content.
[0011] The characteristics of the invention are underlined in the following with particular
reference to the attached drawings, in which:
- figure 1 show a frontal view of the two shutter grate object of the present invention
in which some inner parts have been hatched and the uprights and the transversal bars
are not extended;
- figure 2 shows the grate of figure 1 in which the uprights and the transversal bars
are extended;
- figure 3 shows the grate of figure 1 in which the shutters are centrally put apart;
- figure 4 shows a view of the grate of figure 1 in which the shutters are constrained
to an upper and a lower beam;
- figure 5 shows a view of the grate of figure 3 in which the shutters are constrained
to an upper and a lower beam;
- figure 6 shows a view of the grate of figure 1 whose shutters are articulated;
- figure 7 shows a front view of a shutter hinge;
- figure 8 shows a section view of the hinge of figure 7 according to the plain VIII-VIII;
- figure 9 shows a partial section view of an extensible block associated whit the uprights;
- figure 10 shows an axonometric exploded view of the block of figure 9;
- figure 11 shows an axonometric exploded view of the block of figure 9 in an assembled
condition of the grate;
- figure 12 shows an axonometric exploded view of the extensible block associated with
the transversal bars;
- figure 13 shows a partial section frontal view of the block of figure 12;
- figure 14 shows a partial section top view of the block of figure 13;
- figure 15 shows an axonometric exploded view of the extensible block interposed between
the hinge and the related transversal bar;
- figure 16 shows a partial section frontal view of the extensible block of figure 15;
- figure 17 shows a top view of the section of figure 16;
- figure 18 shows a view of the grate of figure 1 made for protecting a door opening;
- figure 19 shows a partial axonometric schematic view of the closure stop of the one
shutter grate of figure 1.
[0012] With reference to figures from 1 to 6, numeral 1 indicates an extensible grate with
ledge to protect the window or door openings essentially including transversal bars
2, vertical uprights 3, at least one 4 of which is external, a closure 5, locking
members 5a, extension means 7 and two extension elements 8.
[0013] The grate 1 is constituted by two shutters closed and hinged to the shoulders of
an opening 10 of the related window or door. In the following it will be principally
described only one shutter because the two shutters are equal and positioned lined
up in their closing condition C, with the exception of the presence of only one closure
5 in the case of close shutters and whose external uprights almost interfere.
[0014] Each shutter has two parallel transversal bars 2 to which a plurality of parallel
and equally spaced uprights 3 are perpendicularly welded and whose number depends
on the opening to protect, for instance varying from 2 to 8.
[0015] Each shutter of the grate 1 is rotatably fixed to a shoulder of the opening 10 in
correspondence of the ends of the transversal bars 2 by means of a first hinge 6.
[0016] With particular reference to the figures from 15 to 17, the extension means 7 associated
to the end of each transversal bar 2 hinged to the opening 10 include a first block
12 that is interposed between the end of said bar and the first hinge 6 and is constituted
by an internal portion 12a slidably housed inside the transversal bar 2 and by a hollow
portion 12b external to said bar.
[0017] The first block 12 is provided with a plurality of threaded holes 13, engaged by
corresponding grub screw 14 fit to space the internal portion 12a from a plate 15
fixed inside the transversal bar 2 for instance by means of welded joints 42 or rivets.
[0018] The internal portion 12a of the block 12 has a through hole 16 crossed by locking
means 17, for instance a screw, whose threaded end is fit in a corresponding threaded
hole of the plate 15 and whose head 17a locks the hinge 6 against the hollow portion
12b in such a way to constrain this latter to a predefined distance from the transversal
bar 2.
[0019] The hinge 6 is provided with protrusions 18 lying on the surface of the hinge 6 in
front of the hollow portion 12b of the first block 12 and fit in this latter in order
to avoid the mutual rotation between the block and said hinge.
[0020] With particular reference to the figures from 12 to 14, in correspondence of the
remaining end of each transversal bar the extension means 7 are constituted besides
by a second block 20 that is interposed between the end of the transversal bar 2 and
the external upright 4 and that has a first plurality of threaded holes 21, engaged
by corresponding grub screws 22 fit to space the second block 20 from a stop 23 fixed
inside the transversal bar 2, for instance by means of welded joints 43.
[0021] Furthermore, the second block 20 has a plurality of through holes 24 crossed by the
rod of clamping screws 25 whose threaded ends engage corresponding threaded holes
carried out in the stop 23 and whose heads 25a mate the inner wall 4a of the external
upright 4 so fixing this latter to the related transversal bar 2.
[0022] It is advantageous to underline that the extension means 7 are telescopically associated
to each transversal bars 2 in such a way to adjust the width of the grate 1 to the
opening 10 to be protected.
[0023] With particular reference to the figures 9-11, to each end of an external upright
4 of a grate 1 shutter is slidably fixed the extension element 8 that is internally
provided with a bushing 8a crossed by the locking members 5a and is fixed to the external
upright 4 by screw means 28 passing through a slot 29 carried out in the side wall
of said upright.
[0024] The locking members 5a are connected to the closing 5, housed inside the external
upright 4. Each locking members includes a rod 30, which is axially positioned inside
the external upright 4, and which is fixed to a spacer 31 in correspondence of its
end.
[0025] To the free end of said spacer is screwed a headless screw 32 to whose remaining
end is screwed a pawl 33 having an axial excursion by screwing or unscrewing said
screw.
[0026] The pawl. 33 is provided with an axial threaded hole 34 in which a grub screw 35
is engaged having a tip 35a directed toward the pawl 33 and inserted into the pawl
head in order to avoid its rotation whit respect to the headless screw 32.
[0027] The installation of the grate 1 provides the adjustment of the width and height grate
dimensions by using and adjusting the extension means 7, associated to the transversal
bars, and the adjustment of the extension elements 8 housed in the external uprights.
[0028] The operator regulates the length of the transversal bars 2 by rotating, screwing
or unscrewing, the grub screws 14 whose free ends mate the plate 15 and determine
the distance between this latter and the first block 12. After the adjustment, the
protrusions 18 of the hinge 6 are inserted in the hollow portion 12b of the first
block 12 and the screw 17 is screwed to the plate 15 locking the hinge 6 to the transversal
bar 2 by compressing the head 17a of the crew 17 against said hinge which cannot rotate
because of the engagement between the protrusions 18 and the inside edge of the hollow
portion 12b of the first block 12.
[0029] In the same way, the distance of the second block 20 from the stop 23 is adjusted
by screwing/unscrewing the grub screws 22, while the lock of the transversal bar 2
to the external upright 4 is made by clamping the screws 25 whose head compresses
an inside wall of the external upright 4 against the second block 20.
[0030] The access to the heads of the screws 25 and grub screws 22 is allowed by means of
corresponding holes 44 and 45, carried out on the sidewall opposite to the inside
wall engaged by the screws 25.
[0031] The adjustment of each locking members 5a is done by previously screwing the headless
screw 32 into the spacer 31 and fixing, for instance by means of adhesive, and then
screwing or unscrewing the pawl 33 on the headless screw 32 so causing respectively
the shortening or the extension of the end of the relative rod 30.
[0032] The clamping of the grub screw 35 to the end of the headless screw 32 effects the
rotation lock of the pawl 33.
[0033] The operator provides therefore to adjust each extension element 8 of the relative
external upright 4 by positioning at desired height said extension element and fixing
this latter to the upright by tightening the screw 28.
[0034] In the preferred embodiment, the grate 1 is constituted by a couple of shutters in
which an external uprights 4 only has the closing 5 provided with a hook 47 suitable
for hooking the upright 4 of the other shutter.
[0035] A variant of the grate 1 is shown in figures 4 and 5 and provides the use of a cross-bar
9, upper and/or lower, whose ends are fixed to the shoulders of the opening 10 to
be protected, for instance by means of a couple of wedges 46. Each of said cross-bar
9 is positioned at the outside of the grate 1, nearly parallelly to the transversal
bars 2 so that the pawl 33 of the locking members 5a is engaged in a related hole
of the cross-bar 9 in correspondence of a closing condition C of the grate 1.
[0036] In the figures 3 and 5, two variants of the grate 1 are shown which is constituted
by a couple of shutters having the same external uprights 4, that is provided with
the extension element 8 and the locking means 5a so that it is possible to install
the couple of shutters with the external uprights 4 spaced. Said grate variant provides
the use of a couple of closings 5, without the hook 47.
[0037] In particular the figure 5 shows a combination of the two preceding variants.
[0038] Another variant of the grate 1, shown in the figures from 6 to 8, provides the use
of a second hinge 11 interposed between the first hinge 6 and the peripheral upright
4 in such a way to allow 1 the opening of the grate 1 at around 180° beyond the shoulder
of the opening 10 in order to open the grate 1 above possible casings external to
said grate.
[0039] The second hinge 11 has a first plate 11a having both a series of protrusion 40 fit
to engage the inside edge of the transversal bar 2 in order to avoid the rotation
of the second hinge 11, and a central hole 41 crossed by the rod of a screw 36 fit
to engage with a first small plate 38 fixed inside said transversal bar 2, for instance
by means of welded joints or rivets.
[0040] The second hinge 11 further provides a second plate 11b having two holes 41 crossed
by the rods of related screws 37 whose ends are engaged with a second small plate
39, fixed by means of welded joints or rivets, in order to lock the second plate 11b
to the transversal bar 2.
[0041] It is also advantageous underlining that the grate 1 can have another variant constituted
by a grate suitable to protect the opening 10 of a door in which, as shown in figure
18 for instance, the transversal bars 2 are three instead of two and are equally spaced.
[0042] During the installation of the grate 1, it is advantageous underlining that the operator
can screw the grub screw 35 with the tip 35a directed toward the cross-bar of the
opening 10 so that, in correspondence of the closing condition C of the grate 1 and
the activation of the closing 5, so activating the blocking means 5a, the tip 35a
marks the precise point in which it is necessary to make the housing hole of the pawl
33.
[0043] It is important to underline that using said grate it is possible to adjust the grate
dimensions and also to compensate the skews of the opening 10 by means of the asymmetrical
and suitable adjustment of each single extension mean 7 or extension element 8 or
locking means 5a.
[0044] For instance the second block 20 has an axial dimension of 35 mm and the relative
grub screws 14 and 22 are 70 mm long, so that it is possible to obtain a width excursion
of the two shutters from 1200 mm to 1390 mm.
[0045] The first block 12 has varying axial dimensions, for instance, from 30 to 80 mm with
regard to the opening 10 to be protected.
[0046] A further variant, shown in figure 19, provides the use of the single shutter grate
1 in which the closing 5 has a stop 50, constituted by a plate 51, provided with two
holes 56 to which a hollow block 52 is fixed, this latter having a slot 53, in which
the hook 47 is engaged, in the closing condition C.
[0047] Said stop 50 provides besides a further hole 54 through which a screw 55 passes for
fixing the plate 51 to the shoulder of the opening 10. A further screw 55 passes through
the slot 53 to cooperate for fixing the plate 51 so completely compressing the head
of the screws 55 against the edge of the corresponding holes 56.
[0048] The stop 50 allows to maintain spaced the external upright 4 from the shoulder of
the opening 10 for allowing an easier opening of said grate and an easier installation
and for avoiding the possible friction of the upright 4 against the shoulder of said
opening.
[0049] For all the variants of the grate above described, the grate operational adjustments
are the same described for the preferred embodiment or for the variant suitable to
protect the doors.
[0050] The main advantage of the present invention is to provide a grate allowing the adjustment
during the installation of its dimensions in width and height and therefore the fitting
to the opening of the windows and the doors to be protected, without carrying out
grates to measure.
[0051] Further advantage is to provide a grate fit to be assembled so guaranteeing the coincidence
of the lock with the uprights although the posts of the opening to be protected may
be out of alignment.
[0052] Further advantage of the present invention is to provide a grate having a simple
realization, high reliability and safety and easy installation.
1. Extensible grate for protecting the opening of windows or doors including transversal
bars (2) each of these latter supporting a plurality of vertical uprights (3), having
at least an external upright (4), connected to an end of said grate and to which is
associated a closing (5), provided with locking members (5a), and having at the remaining
end at least a first hinge (6) fit for rotatably connecting the grate (1) to the opening
(10) of the window or door, and having extension means (7) telescopically associated
to each transversal bars (2) so as to fit the width of the grate (1) to the opening
(10) to be protected, the grate (1) being characterized in that it includes at least an extension element (8) telescopically associated to the external
upright (4) in such a way to adjust the height of the grate (1) to the opening to
be protected.
2. Grate according to claim 1 characterized in that said extension means (7) include a first block (12) interposed between the end of
the transversal bar (2) and the first hinge (6) and constituted with an inside portion
(12a) slidably housed inside the transversal bar (2) and with an hollow portion (12b)
and external to this latter, with the first block (12) provided with a plurality of
threaded holes (13), engaged by corresponding grub screws (14) fit to space the inside
portion (12a) from a plate (15) fixed inside the transversal bar (2), and with through
hole (16), crossed by locking means (17), whose threaded end engages a corresponding
threaded hole of the plate (15) and whose head (17a) lock the hinge (6) against the
hollow portion (12b) in such a way to constrain said hinge (6) to a predefined distance
from the transversal bar (2).
3. Grate according to claim 2 characterized in that the hinge (6) is provided with protrusions (18) positioned on the surface of the
hinge (6) facing the first block (12) and fit into this latter in order to avoid the
mutual rotation between said first block and said hinge.
4. Grate according to claim 1 or claim 2 characterized in that said extension means (7) further include a second block (20) interposed between the
end of the transversal bar (2) and the external upright (4) and having both a first
plurality of threaded holes (21), engaged by corresponding grub screws (22) fit to
space the second block (20) from a stop (23), fixed inside the transversal bar (2),
and a plurality of through holes (24), crossed by clamping screws (25) whose threaded
ends are engaged in corresponding threaded holes of the stop (23) and whose heads
(25a) lock the external upright (4) to the transversal bar (2).
5. Grate according to claim 1 characterized in that the extension element (8), provided with a bushing (8a) crossed by the locking members
(5a), is fixed to said external upright (4) by screw means (28) passing through a
slot (29) carried out in the side wall oi the same uprignt.
6. Grate according to claim 1 characterized in that the locking members (5a) include essentially at least a rod (30) to whose ends a
spacer (31) is fixed, to whose free end it is hinged a headless screw (32) to which
is constrained a pawl (33) having an axial excursion.
7. Grate according to claim 6 characterized in that said pawl (33) is provided with a threaded axial hole (34) in which a grub screw
(35) is engaged.
8. Grate according to claim 7 characterized in that said grub screw (35) has a tip (35a) inserted into the head of the pawl (33) in order
to avoid its rotation with respect to the headless screw (32).
9. Grate according to claim 7 characterized in that the grub screw (35) has a tip (35a) inserted into the opening (10) in correspondence
of a closing condition (C) of the grate (1).
10. Grate according to anyone of the preceding claims characterized in that further includes at least a cross-bar (9) whose ends are fixed to the shoulders of
the opening (10) to be protected and is positioned outside the grate (1), almost parallelly
to the transversal bars (2) in such a way that the locking members (5a) engage the
transversal bars (2) in correspondence of a closing condition (C) of the grate (1).
11. Grate according to anyone of the preceding claims characterized in that is constituted by a couple of shutters having spaced external uprights (4).
12. Grate according to anyone of the preceding claims characterized in that further includes a second hinge (11) interposed between the first hinge (6) and the
external upright (4) so allowing the opening of the grate (1) at about 180° over the
shoulder of the opening (10).
13. Grate according to claim 12 characterized in that tne second hinge (11) has a first plate (11a) having both a series of protrusions
(40) fit to mate the internal edge of the transversal bar (2) for avoiding the rotation
of the second hinge (11), and a central hole (41) crossed by the rod of a screw (36)
engaging a first small plate (38) fixed inside said transversal bar (2), said second
hinge (11) being further provided with a second plate (11b) having two holes (41)
crossed by the rods of related screws (37) whose ends engage a second small plate
(39) for locking the second plate (11b) to said transversal bar (2).
14. Grate according to anyone of the preceding claims characterized in that the transversal bars (2) are three.
15. Grate according to anyone of the preceding claims characterized in that the grate (1) has a single shutter and the closing (5) has a hook (47) and a stop
(50) fixed to the shoulder of the opening (10) and constituted by a plate (51) to
which a hollow block (52) is fixed, having a slot (53) engaging the hook (47) in correspondence
of a closing condition (C) of the grate (1).
1. Ausziehbares Gitter zum Schützen der Öffnung von Fenstern oder Türen, mit querverlaufenden
Stäben (2), die jeweils mehrere vertikale Stäbe (3) abstützen, welche mindestens einen
äußeren vertikalen Stab (4) umfassen, der mit einem Ende des Gitters verbunden ist
und dem ein Verschluss (5) zugeordnet ist, welcher mit Verriegelungsgliedern (5a)
versehen ist und an dem verbleibenden Ende mindestens ein erstes Gelenk (6) hat, um
das Gitter (1) mit der Öffnung (10) des Fensters oder der Tür drehbar zu verbinden,
und der Ausziehmittel (7) hat, die jedem querverlaufenden Stab (2) teleskopierbar
zugeordnet ist, um die Breite des Gitters (1) an die zu schützende Öffnung (10) anzupassen,
wobei das Gitter (1) dadurch gekennzeichnet ist, dass es mindestens ein Ausziehelement (8) aufweist, das dem äußeren vertikalen Stab (4)
zugeordnet ist, um die Höhe des Gitters an die zu schützende Öffnung anzupassen.
2. Gitter nach Anspruch 1, dadurch gekennzeichnet, dass die Ausziehmittel (7) einen ersten Block (12) aufweisen, der zwischen das Ende des
querverlaufenden Stabes (2) und dem ersten Gelenk (6) angeordnet ist und mit einem
inneren Abschnitt (12a), der innerhalb des querverlaufenden Stabes (2) gleitend untergebracht
ist, und mit einem hohlen Abschnitt (12b) sowie außerhalb zu diesem versehen ist,
wobei der erste Block (12) mit mehreren Gewindebohrungen (13), mit denen entsprechende
Gewindestifte (14) in Eingriff stehen, die den inneren Abschnitt (12a) auf Abstand
zu einer innerhalb des querverlaufenden Stabes (2) festgelegten Platte (15) halten,
und mit einem Durchgangsloch (16) versehen ist, welches von Verriegelungsmitteln (17)
durchquert wird, deren Gewindeende mit einer entsprechenden Gewindebohrung der Platte
(15) in Eingriff steht und deren Kopf (17a) das Gelenk (6) entgegen dem hohlen Abschnitt
(12b) so verriegeln, dass das Gelenk (6) auf einen vorgegebenen Abstand zu dem querverlaufenden
Stab (2) gesichert wird.
3. Gitter nach Anspruch 2, dadurch gekennzeichnet, dass das Gelenk (6) mit Vorsprüngen (18) versehen ist, die an der dem ersten Block (12)
zugewandten Fläche des Gelenkes (6) angeordnet sind und in den ersten Block passen,
um einen Relativdrehung zwischen dem ersten Block und dem Gelenk zu verhindern.
4. Gitter nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Ausziehmittel (7) ferner einen zweiten Block (20) umfassen, der zwischen dem
Ende des querverlaufenden Stabes (2) und dem äußeren vertikalen Stab (4) angeordnet
ist und sowohl eine erste Anzahl Gewindebohrungen (21) wie auch eine Anzahl Durchgangslöcher
(24) hat, von denen die Gewindebohrungen mit entsprechenden Gewindestiften (22) in
Eingriff stehen, um den zweiten Block (20) zu einem innerhalb des querverlaufenden
Stabes (2) festgelegten Anschlag (23) zu beabstanden, und die Anzahl Durchgangslöcher
(24) von Spannschrauben (25) durchsetzt werden, deren Gewindeenden mit entsprechenden
Gewindebohrungen des Anschlages (23) in Eingriff stehen und deren Köpfe (25a) den
äußeren vertikalen Stab (4) mit dem querverlaufenden Stab (2) verriegeln.
5. Gitter nach Anspruch 1, dadurch gekennzeichnet, dass das Ausziehelement (8), das mit einer von den Verriegelungsgliedern (5a) durchsetzten
Buchse (8a) versehen ist, an dem äußeren vertikalen Stab (4) durch Schraubenmittel
(28) festgelegt ist, die durch einen Schlitz (29) in der Seitenwand desselben vertikalen
Stabes verlaufen.
6. Gitter nach Anspruch 1, dadurch gekennzeichnet, dass die Verriegelungsglieder (5a) im wesentlichen mindestens eine Stange (30) umfassen,
an deren Enden ein Abstandsstück (3 1) befestigt ist, mit dessen freien Ende eine
kopflose Schraube (32) gelenkig verbunden ist, an der ein Klaue (33) mit einer axialen
Erstreckung angebracht ist.
7. Gitter nach Anspruch 6, dadurch gekennzeichnet, dass die Klaue (33) mit einer axialen Gewindebohrung (34) versehen ist, mit der ein Gewindestift
(35) in Eingriff steht.
8. Gitter nach Anspruch 7, dadurch gekennzeichnet, dass der Gewindestift (35) eine Spitze (35a) hat, die in den Kopf der Klaue (33) eingesetzt
ist, um sie gegen Drehung relativ zu der kopflosen Schraube (32) zu sichern.
9. Gitter nach Anspruch 7, dadurch gekennzeichnet, dass der Gewindestift (35) eine Spitze (35a) hat, der in die Öffnung (10) in Übereinstimmung
mit einem Schließzustand (C) des Gitters (1) eingesetzt ist.
10. Gitter nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass es ferner mindestens einen Querstab (9) aufweist, dessen Enden an den Schultern der
zu schützenden Öffnung (10) festgelegt sind und der außerhalb des Gitters (1) nahezu
parallel zu den querverlaufenden Stäben (2) so angeordnet ist, dass die Verriegelungsglieder
(5a) mit den querverlaufenden Stäben (2) entsprechend einem Schließzustand (C) des
Gitters (1) in Eingriff stehen.
11. Gitter nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass es von mehreren Läden gebildet wird, die beabstandete äußere vertikale Stäbe (4)
haben.
12. Gitter nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass es ferner ein zweites Gelenk (11) aufweist, das zwischen dem ersten Gelenk (6) und
dem äußeren vertikalen Stab (4) angeordnet ist, um das Gitter (1) um ungefähr 180°
über die Schulter der Öffnung (10) öffnen zu können.
13. Gitter nach Anspruch 12, dadurch gekennzeichnet, dass das zweite Gelenk (11) eine erste Platte (11a) hat, die sowohl eine Reihe von Vorsprüngen
(40), die an den inneren Rand des querverlaufenden Stabes (2) angepasst sind, um eine
Drehung des zweiten Gelenkes (11) zu verhindern, sowie ein zentrales Loch (41) aufweist,
das von dem Schaft einer Schraube (36) durchsetzt wird, die an einer innerhalb des
querverlaufenden Stabes (2) festgelegten ersten kleinen Platte (38) angreift, wobei
das zweite Gelenk (11) ferner mit einer zweiten Platte (11b) mit zwei Löchern (41)
versehen ist, die von den Schäften zugehörigen Schrauben (37) durchsetzt werden, deren
Enden an einer zweiten kleinen Platte (39) angreifen, um die zweite Platte (11b) mit
dem querverlaufenden Stab (2) zu verriegeln.
14. Gitter nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Anzahl der querverlaufenden Stäbe (2) drei ist.
15. Gitter nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Gitter (1) einen einzigen Laden hat und der Verschluss (5) einen Haken (47) und
einen Anschlag (50) hat, der an der Schulter der Öffnung (10) festgelegt ist und von
einer Platte (51) gebildet wird, an der ein hohler Block (52) befestigt ist, welcher
einen Schlitz (53) hat, der mit dem Haken (47) entsprechend einem Schließzustand (C)
des Gitters (1) in Eingriff steht.
1. Grille extensible permettant de protéger l'ouverture des fenêtres ou des portes incluant
des barres transversales (2), chacune d'entre elles supportant une pluralité de montants
verticaux (3), comportant au moins un montant externe (4), raccordé à une extrémité
de ladite grille et auquel est associée une fermeture (5), équipée d'éléments de blocage
(5a), et comportant au niveau de l'extrémité restante au moins une première charnière
(6) adaptée pour raccorder de manière rotative la grille (1) à l'ouverture (10) de
la fenêtre ou de la porte, et comportant un moyen d'extension (7) associé de manière
télescopique à chacune des barres transversales (2) de manière à adapter la largeur
de la grille (1) à l'ouverture (10) à protéger, la grille (1) étant caractérisée en ce qu'elle inclut au moins un élément d'extension (8) associé de manière télescopique au
montant externe (4) de manière à ajuster la hauteur de la grille (1) par rapport à
l'ouverture à protéger.
2. Grille selon la revendication 1 caractérisée en ce que ledit moyen d'extension (7) inclut un premier bloc (12) intercalé entre l'extrémité
de la barre transversale (2) et la première charnière (6) et constituée d'une partie
interne (12a) logée de manière coulissante à l'intérieur de la barre transversale
(2) et d'une partie creuse (12b) et à l'extérieur de cette dernière, d'un premier
bloc (12) équipé d'une pluralité d'orifices filetés (13), engagés par des vis sans
tête (14) correspondantes adaptés pour espacer la partie interne (12a) d'une plaque
(15) fixée à l'intérieur de la barre transversale (2) et d'un trou débouchant (16),
traversé par le moyen de blocage (17), dont l'extrémité fileté s'engage dans un orifice
fileté correspondant de la plaque (15) et dont la tête (17a) bloque la charnière (6)
contre la partie creuse (12b) de manière à serrer ladite charnière (6) à une distance
prédéfinie de la barre transversale (2).
3. Grille selon la revendication 2 caractérisée en ce que la charnière (6) est équipée de saillies (18) positionnées sur la surface de la charnière
(6) faisant face au premier bloc (12) et en ce qu'elle s'adapte à cette dernière afin d'éviter la rotation mutuelle entre ledit premier
bloc et ladite charnière.
4. Grille selon la revendication 1 ou 2 caractérisée en ce que ledit moyen d'extension (7) inclut de plus un second bloc (20) intercalé entre l'extrémité
de la barre transversale (2) et le montant externe (4), les deux comportant une première
pluralité d'orifices filetés (21), engagés par les vis sans tête (22) correspondantes
adaptées pour espacer le second bloc (20) d'un taquet (23), fixé à l'intérieur de
la barre transversale (2) et d'une pluralité de trous débouchants (24), traversés
par des vis de serrage (25) dont les extrémités filetées s'engagent dans les orifices
filetés correspondants du taquet (23) et dont les têtes (25a) bloquent le montant
externe (4) sur la barre transversale (2).
5. Grille selon la revendication 1 caractérisée en ce que l'élément d'extension (8), équipé d'une douille (8a) traversée par les éléments de
blocage (5a), est fixé au dit montant externe (4) par moyen à vis (28) traversant
une fente (29) réalisée dans la paroi externe du même montant.
6. Grille selon la revendication 1 caractérisée en ce que les éléments de blocage (5a) incluent essentiellement au moins une tige (30) aux
extrémités de laquelle est fixée une entretoise (31), à l'extrémité libre de laquelle
est fixée par charnière une vis sans tête (32) sur laquelle est serré un cliquet (33)
à course axiale.
7. Grille selon la revendication 6 caractérisée en ce que ledit cliquet (33) est équipé d'un orifice axial fileté (34) dans lequel une vis
sans tête (35) est engagée.
8. Grille selon la revendication 7 caractérisée en ce que ladite vis sans tête (35) comporte une pointe (35a) insérée dans la tête du cliquet
(33) afin d'éviter sa rotation par rapport à la vis sans tête (32).
9. Grille selon la revendication 7 caractérisée en ce que la vis sans tête (35) comporte une pointe (35a) insérée dans l'ouverture (10), ce
qui correspond à une condition de fermeture (C) de la grille (1).
10. Grille selon l'une quelconque des revendications précédentes caractérisée en ce qu'elle inclut également au moins une traverse (9) dont les extrémités sont fixées aux
épaulements de l'ouverture (10) à protéger et qui est positionnée à l'extérieur de
la grille (1), pratiquement parallèle aux barres transversales (2) de sorte que les
éléments de blocage (5a) engagent les barres transversales (2), ce qui correspond
à une condition de fermeture (C) de la grille (1).
11. Grille selon l'une quelconque des revendications précédentes caractérisée en ce qu'elle est constituée d'un couple de battants comportant des montants externes espacés
(4).
12. Grille selon l'une quelconque des revendications précédentes caractérisée en ce qu'elle inclut également une seconde charnière (11) intercalée entre la première charnière
(6) et le montant externe (4) en permettant ainsi une ouverture de la grille (1) d'environ
180 ° sur l'épaulement de l'ouverture (10).
13. Grille selon la revendication 12 caractérisée en ce que la seconde charnière (11) comporte une première plaque (11a) présentant à la fois
une série de saillies (40) adaptées pour correspondre au bord interne de la barre
transversale (2) pour éviter la rotation de la seconde charnière (11) et un orifice
central (41) traversé par la tige d'une vis (36) engageant une première petite plaque
(38) fixée à l'intérieur de ladite barre transversale (2), ladite seconde charnière
(11) étant également équipée d'une seconde plaque (11b) comportant deux orifices (41)
traversés par les tiges des vis associées (37) dont les extrémités engagent une seconde
petite plaque (39) pour bloquer la seconde plaque (11b) sur ladite barre transversale
(2).
14. Grille selon l'une quelconque des revendications précédentes caractérisée en ce que les barres transversales (2) sont au nombre de 3.
15. Grille selon l'une quelconque des revendications précédentes caractérisée en ce que la grille (1) comporte un seul battant et la fermeture (5) comporte un crochet (47)
et un taquet (50) fixé à l'épaulement de l'ouverture (10) et constitué d'une plaque
(51) sur laquelle est fixé un bloc creux (52), comportant une fente (53) engageant
le crochet (47), ce qui correspond à une condition de fermeture (C) de la grille (1).