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EP 2 553 198 B1 |
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EUROPEAN PATENT SPECIFICATION |
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Mention of the grant of the patent: |
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04.05.2016 Bulletin 2016/18 |
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Date of filing: 31.03.2010 |
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International Patent Classification (IPC):
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International application number: |
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PCT/IT2010/000138 |
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International publication number: |
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WO 2011/121621 (06.10.2011 Gazette 2011/40) |
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SHOCK-ABSORBER FOR SLIDING DEVICES
STOSSDÄMPFER FÜR GLEITVORRICHTUNGEN
AMORTISSEUR POUR DISPOSITIFS COULISSANTS
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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 HR HU IE IS IT LI LT LU LV MC MK MT NL NO
PL PT RO SE SI SK SM TR |
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Date of publication of application: |
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06.02.2013 Bulletin 2013/06 |
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Proprietor: Fer Metal S.N.C. Di Feriseri Francesco & C. |
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25071 Agnosine Brescia (IT) |
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Inventors: |
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- FERISERI, Enrico
I-25087 Salò Brescia (IT)
- TOMASELLI, Giorgio
I-25016 Ghedi Brescia (IT)
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Representative: Chimini, Francesco |
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Jacobacci & Partners S.p.A.
Piazza della Vittoria 11 25122 Brescia 25122 Brescia (IT) |
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References cited: :
DE-A1- 3 301 808 US-A1- 2008 295 283
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DE-U- 7 400 699
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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 to a shock-absorber for sliding devices such as, for
example, doors, windows, panels, gates, drawers.
[0002] The use of shock absorber stop devices mounted near the end stop position of a sliding
device so as to prevent brusque impact of said sliding device against the rigid stop
delimiting the travel is known of.
[0003] Normally, such shock absorber devices use a decelerating device, such as a hydraulic,
pneumatic or spring cylinder, which brakes the sliding device when it is about to
reach the end stop position.
[0004] Said decelerating devices, however, do not allow perfect and constant blocking of
the sliding device in the end stop position. In particular, the sliding device almost
always rebounds, more or less depending on the thrust imparted, and tends to return
backwards rather than blocking in the end stop position.
[0005] In some cases, if the thrust imparted to the sliding device by the user is not well-judged
or if the shock absorber device is not properly calibrated, it is not possible prevent
violent impact against the end stop, causing unwanted banging and progressive wear
of the parts hitting against each other.
[0006] In the case in point, of off-wall sliding doors or panels and, in particular, with
visible guide and translation mechanisms, the need to slow down the impetus of the
door or panel in a controlled manner also contrasts with constraints of an aesthetic
nature which such types of fixture or partition impose, and this conflict has not
yet been resolved satisfactorily.
[0007] The purpose of the present invention is to propose a shock-absorber able to overcome
the drawbacks and limitations described above.
[0008] Such purpose is achieved by a shock-absorber according to claim 1 and by a linear
movement system according to claim 9. The dependent claims describe preferred or advantageous
embodiments of the invention.
[0009] The characteristics and advantages of the shock-absorber according to the invention
will however be evident from the description below, made by way of a nonlimiting example,
of its preferred embodiments with reference to the attached figures, wherein:
- Figure 1 is an exploded view of the shock-absorber according to the invention;
- Figure 2 is a view of the assembled shock-absorber;
- Figure 3 is a view from the opposite side of the assembled shock-absorber;
- Figure 4 is an exploded view of one end of a linear movement system of a glass door
according to the invention;
- Figure 5 is a front view of the end of the movement system; and
- Figure 6 is an end view of the linear movement system.
[0010] In said diagrams, reference numeral 1 globally denotes, in its entirety, a shock-absorber
for sliding devices such as sliding doors or windows, panels, gates, drawers and the
like, according to the invention.
[0011] For the sake of simplicity and if not specified otherwise, henceforth in the description
sliding device will be taken to mean both the main element made to slide, such as
the door, window, panel, gate and any mobile means supporting it to enable movement,
where envisaged.
[0012] In a general embodiment, the shock-absorber 1 comprises a support body 10 bearing
at least one decelerating device 20 and at least one magnet 40. The support body 10
is suitable for attaching near the end stop position of a sliding device 2. The decelerating
device 20 is suitable for slowing down the travel of the sliding device 2 to the end
stop position. The magnet 40 is suitable for attracting a corresponding magnetic or
ferromagnetic element 45 borne by the sliding device 2, at least to block the sliding
device in the end stop position.
[0013] According to the invention, the decelerator 20 is a hydraulic decelerator. The decelerator
20 comprises a cylinder having a body 22 and a piston 23; when the moving load strikes
the decelerator, the oil is pushed by the piston 23 through a series of brake holes.
The number of holes which the oil comes out of decreases progressively and proportionately
to the deceleration travel.
[0014] In one advantageous embodiment, the magnet 40 exerts an attractive force which not
only blocks the sliding device 2 when it reaches the end stop position, but which
helps to bring the sliding device 2, slowed down by the decelerating device 20, to
said end stop position.
[0015] Even more preferably, for an average force applied to the sliding device 2, the decelerating
device 20 is calibrated to stop the sliding device before it reaches the end stop
position, and the magnet exerts a greater force of attraction on the sliding device
than the contrast force opposing the decelerating device, so as to attract the sliding
device to the end stop position.
[0016] In this way, the sliding device 2 is prevented from always hitting against the shock-absorber
as a result of the thrust imparted by the user, damaging it if the thrust is violent
or in any case causing progressive wear. On the contrary, thanks to such calibration
of the decelerating device 20 and of the magnet 40, in most cases the sliding device
2 reaches the end stop position at the same, controlled speed, caused only by the
force of attraction exerted by the magnet 40.
[0017] The decelerating device 20 and the magnet 40 are housed in respective seats 21, 41
made in the support body 10. For example said seats are parallel to each other and
to the direction of sliding of the sliding device 2.
[0018] According to the invention, the support body 10 comprises a main body 11 and a plug
12 placed so as to seal said main body 11, for example on the side of the sliding
device 2. In the main body 11 and in the plug 12 are obtained first and second cavities
21', 21"; 41', 41" facing each other which respectively form the seats 21, 41 for
the decelerating device 20 and for the magnet 40, when said first and second cavities
are flanking. For example, the plug 12 is attached to the main body 11 by screws 13.
[0019] Advantageously, the plug 12 is made in a magnetic material and the second cavity
41" for the magnet, that is the one made in the plug 12, is closed on the side facing
the sliding device 2.
[0020] The first cavity 21' for the decelerating device 20, in other words the one made
in the main body 11, houses the body 22 of said decelerating device 20; the plug 12
blocks said body 22 of the decelerating device 20 axially, for example by means of
an annular boss 14 which engages the end of the body 22 of the decelerating device
20 axially; the second cavity 21" is a through cavity and houses the end part of the
piston 23 of the decelerating device projecting from the body 22. Thanks to said through
cavity 21", in other words, open towards the sliding device 2, such end of the piston
23 can be engaged by a portion of the sliding device 2.
[0021] Given such embodiment of the body of the shock-absorber, the assembly of the decelerating
device 20 and of the magnet 40 to said body, is simple and fast to perform. In fact
all that is required is to place the decelerating device 20 and the magnet 40 in the
first cavities 21', 41' made in the main body 11, place the plug 12 over them and
attach it to the main body. The decelerating device 20 and the magnet 40 are thereby
immediately and firmly blocked in their respective seats, without the need for specific
means of attachment.
[0022] In addition, the decelerating device 20 and the magnet 40 are practically hidden
from view and the shock-absorber 1 presents a compact and regular body, for example
of a substantially prismatic shape, suitable for visible applications.
[0023] In a practical example of one embodiment, illustrated in figures figure 4-6, the
shock-absorber 1 is part of a translation system 3 of a sliding door 4 of the off-wall
type.
[0024] In particular, the support body 10 is suitable for assembling to the end of a translation
guide 5 of the sliding door 4, for example having a substantially horizontal extension.
To such purpose, a coupling seat 15 to the guide 5 is made in said support body 10,
able to receive, for example via a shaped coupling, one end of the translation guide
5.
[0025] Said translation system 3 comprises at least one carriage 6 joined in a translatable
manner to the translation guide 5, for example sliding on said guide by means of at
least one castor 7. The carriage 6 comprises coupling devices 8 to the door 4.
[0026] In addition, the carriage 6 is provided with an end stop bracket 9 bearing a pin
9' suitable for engaging the piston 23 of the decelerating device 20. In said bracket
9 the magnetic or ferromagnetic element 45 suitable for interacting with the magnet
40 of the shock-absorber 1 is also housed.
[0027] It is to be noted that the support body 10, for example of a cylindrical shape or
having an elliptical section presents, in the specific embodiment shown, a slot or
groove 17, in a rearward position in relation to the end facing the carriage 6, to
house the castor 7 of the carriage when the latter is in the end stop position.
[0028] A person skilled in the art may make modifications, adaptations and replacements
of elements with others functionally equivalent to the embodiments of the shock-absorber
according to the invention so as to satisfy contingent requirements while remaining
within the sphere of protection of the following claims. Each of the characteristics
described as belonging to a possible embodiment may be realised independently of the
other embodiments described.
1. Shock-absorber (1) for sliding devices, such as sliding doors or windows, panels,
gates, drawers comprising a support body (10) suitable for being attached near an
end stop position of the sliding device and, borne by said support body, at least
one decelerating device (20) suitable for slowing down the travel of the sliding device
near the end stop position and at least one magnet (40) suitable for attracting a
corresponding magnetic or ferromagnetic element (45) borne by the sliding device to
at least block the sliding device in the end stop position, the decelerating device
(20) and the magnet (40) being housed in respective seats (21, 41) made in the support
body (10), the decelerating device (20) being a hydraulic cylinder comprising a body
(22) and a piston (23), said shock-absorber (1) being characterized in that the support body (10) comprises a main body (11) and a plug (12) positioned to close
off said main body on the side of the sliding device, in said main body and in said
plug there being facing cavities (21', 21"; 41', 41") which form the seats (21, 41)
for the decelerating device (20) and for the magnet (40) when said cavities (21',21";
41',41") are flanking, wherein the main body (11) houses the body (22) of said decelerating
device (20) and wherein the plug (12) axially blocks said body (22) and one of its
cavities being a through cavity (21") which houses an end part of the piston (23)
projecting from the body (22).
2. Shock-absorber according to claim 1, wherein said magnet (40) is suitable for attracting
the sliding device, slowed down by the decelerating device, to the end stop position.
3. Shock-absorber according to claim 2, wherein the decelerating device (20) is calibrated
to stop the sliding device before it reaches the end stop position, and wherein the
magnet (40) is suitable for exerting a force of attraction greater than the contrast
force opposed by the decelerating device (20), so as to attract the sliding device
to the end stop position.
4. Shock-absorber according to any of the previous claims, wherein the support body (10)
is suitable for being assembled at one end of a translation guide (5) of the sliding
device.
5. Shock-absorber according to any of the previous claims, wherein the seats (21, 41)
are parallel to each other and to the direction of sliding of the sliding device.
6. Shock-absorber according to any of the previous claims, wherein the plug (12) is made
in non-magnetic material and wherein the cavity (41") in the plug for the magnet (40)
is closed on the side of the sliding device.
7. Linear movement system for a sliding device, such as, for example, a door or a window,
a panel or similar, comprising at least one translation guide (5) for the sliding
device, having a substantially horizontal extension (X), at least one carriage (6)
joined in a translatable manner to the translation guide and comprising coupling devices
(8) to the sliding device, and a shock-absorber (1) according to any of the previous
claims attached to one end of the translation guide.
8. Movement system according to claim 7, wherein the carriage (6) is provided with a
horizontal pin suitable for engaging the decelerating device (20) and a magnetic or
ferromagnetic element (45) suitable for interacting with the magnet (40) of the shock-absorber.
1. Stoßdämpfer (1) für Schiebevorrichtungen, beispielsweise Schiebetüren oder Fenster,
Paneele, Gatter, Schubladen, umfassend einen Stützkörper (10), der zur Befestigung
nahe einer Endanschlagposition der Schiebevorrichtung geeignet ist und, wenigstens
eine durch den Stützkörper getragene Bremsvorrichtung (20), die zum Verlangsamen der
Bewegung der Schiebevorrichtung nahe der Endanschlagposition geeignet ist, und wenigstens
einen Magneten (40), der zum Anziehen eines entsprechenden magnetischen oder ferromagnetischen
Elements (45) geeignet ist, das von der Schiebevorrichtung getragen wird, um die Schiebevorrichtung
zumindest in der Endanschlagposition zu blockieren, wobei die Bremsvorrichtung (20)
und der Magnet (40) in jeweiligen Sitzen (21, 41), die in dem Stützkörper (10) ausgebildet
sind, aufgenommen werden, wobei die Bremsvorrichtung (20) ein Hydraulikzylinder ist,
der einen Körper (22) und einen Kolben (23) umfasst, wobei der Stoßdämpfer (1) dadurch gekennzeichnet ist, dass der Stützkörper (10) einen Hauptkörper (11) und einen Deckel (12) umfasst, der zum
Verschließen des Hauptkörpers an der Seite der Schiebevorrichtung angeordnet ist,
wobei in dem Hauptkörper und in dem Deckel Hohlräume (21', 21"; 41', 41") einander
zugewandt sind, die die Sitze (21, 41) für die Bremsvorrichtung (20) und für den Magneten
(40) bilden, wenn die Hohlräume (21', 21 "; 41', 41 ") an einander angrenzen, wobei
der Hauptkörper (11) den Körper (22) der Bremsvorrichtung (20) aufnimmt, und wobei
der Deckel (12) den Körper (22) axial blockiert, und wobei einer seiner Hohlräume
ein Durchgangshohlraum (21") ist, der einen Endabschnitt des Kolbens (23), der von
dem Körper (22) vorragt, aufnimmt.
2. Stoßdämpfer gemäß Anspruch 1,
wobei der Magnet (40) zum Anziehen der durch die Bremsvorrichtung verlangsamten Schiebevorrichtung
zu der Endanschlagposition geeignet ist.
3. Stoßdämpfer gemäß Anspruch 2,
wobei die Bremsvorrichtung (20) kalibriert ist, um die Schiebevorrichtung anzuhalten,
bevor sie die Endanschlagposition erreicht, und wobei der Magnet (40) zum Ausüben
einer Anziehungskraft, die größer als die Gegenkraft ist, die durch die Bremsvorrichtung
(20) entgegengerichtet ausgeübt wird, geeignet ist, um die Schiebevorrichtung zu der
Endanschlagposition zu ziehen.
4. Stoßdämpfer gemäß irgend einem der vorangehenden Ansprüche, wobei der Stützkörper
(10) geeignet ist, an einem Ende einer Translationsführung (5) der Schiebevorrichtung
montiert zu werden.
5. Stoßdämpfer gemäß irgend einem der vorangehenden Ansprüche, wobei die Sitze (21, 41)
parallel zueinander und zu der Schieberichtung der Schiebevorrichtung angeordnet sind.
6. Stoßdämpfer gemäß irgend einem der vorangehenden Ansprüche, wobei der Deckel (12)
aus einem nicht magnetischen Werkstoff hergestellt ist und wobei der Hohlraum (41
") in dem Anschluss für den Magneten (40) an der Seite der Schiebevorrichtung verschlossen
ist.
7. Lineares Bewegungssystem für eine Schiebevorrichtung, beispielsweise eine Tür oder
ein Fenster, ein Paneel oder dergleichen, umfassend wenigstens eine Translationsführung
(5) für die Schiebevorrichtung, die eine im Wesentlichen horizontale Erstreckung (X)
aufweist, wenigstens ein Laufwagen (6), der mit der Translationsführung beweglich
verbunden ist, und umfassend Kuppelvorrichtungen (8) an der Schiebevorrichtung und
einen Stoßdämpfer (1) gemäß irgend einem der vorangehenden Ansprüche, der an einem
Ende der Translationsführung angebracht ist.
8. Bewegungssystem gemäß Anspruch 7, wobei der Laufwagen (6) mit einem horizontalen Stift
versehen ist, der geeignet ist, in die Bremsvorrichtung (20) einzugreifen, und ein
magnetisches oder ferromagnetisches Element (45), das zum Zusammenwirken mit dem Magneten
(40) des Stoßdämpfers geeignet ist.
1. Amortisseur (1) pour des dispositifs coulissants tels que des portes ou fenêtres,
panneaux, portails coulissants ou tiroirs, comprenant un support (10) pouvant être
fixé près d'une position d'arrêt en fin de course du dispositif coulissant et, portés
par ledit support, au moins un dispositif décélérateur (20) pouvant ralentir la course
du dispositif coulissant près de la position d'arrêt en fin de course et au moins
un aimant (40) pouvant attirer un élément magnétique ou ferromagnétique (45) correspondant
porté par le dispositif coulissant pour bloquer au moins le dispositif coulissant
dans la position d'arrêt en fin de course, le dispositif décélérateur (20) et l'aimant
(40) étant logés dans des logements (21, 41) respectifs formés dans le corps de support
(10), le dispositif décélérateur (20) étant un vérin hydraulique comprenant un corps
(22) et un piston (23), ledit amortisseur (1) étant caractérisé en ce que le support (10) comprend un corps principal (11) et un bouchon (12) positionné de
façon à fermer ledit corps principal du côté du dispositif coulissant, des cavités
(21', 21" ; 41', 41") étant prévues les unes en face des autres dans ledit corps principal
et ledit bouchon et formant lesdits logements (21, 41) pour le dispositif décélérateur
(20) et pour l'aimant (40) quand lesdites cavités (21', 21" ; ; 41', 41") sont côte
à côte, le corps principal (11) logeant le corps (22) dudit dispositif décélérateur
(20) et le bouchon (12) bloquant ledit corps (22) dans le sens axial et l'une de ses
cavités étant une cavité traversante (21") qui loge une partie d'extrémité du piston
(23) qui dépasse du corps (22).
2. Amortisseur selon la revendication 1, dans lequel ledit aimant (40) peut attirer le
dispositif coulissant ralenti par le dispositif décélérateur jusqu'à la position d'arrêt
en fin de course.
3. Amortisseur selon la revendication 2, dans lequel le dispositif décélérateur (20)
est étalonné pour arrêter le dispositif coulissant avant qu'il atteigne la position
d'arrêt en fin de course, et dans lequel l'aimant (40) peut exercer une force d'attraction
supérieure à la force antagonique opposée par le dispositif décélérateur (20) afin
d'attirer le dispositif coulissant jusqu'à la position d'arrêt en fin de course.
4. Amortisseur selon l'une quelconque des revendications précédentes, dans lequel le
support (10) peut être assemblé à une extrémité d'un guide de translation (5) du dispositif
coulissant.
5. Amortisseur selon l'une des revendications précédentes, dans lequel les 1
logements (21, 41) sont parallèles l'un à l'autre et parallèles au sens de glissement
du dispositif coulissant.
6. Amortisseur selon l'une des revendications précédentes, dans lequel le bouchon (12)
est fait de matériau non magnétique et dans lequel la cavité (41") dans le bouchon
destiné à l'aimant (40) est fermée du côté du dispositif coulissant.
7. Système de déplacement linéaire pour un dispositif coulissant, par exemple une porte
ou une fenêtre, un panneau ou similaire, comprenant au moins un guide de translation
(5) pour le dispositif coulissant, d'étendue (X) sensiblement horizontale, au moins
un chariot (6) assemblé avec possibilité de translation au guide de translation et
comprenant des dispositifs de couplage (8) au dispositif coulissant, et un amortisseur
(1) selon l'une des revendications précédentes fixé à une extrémité du guide de translation.
8. Système de déplacement selon la revendication 7, dans lequel le chariot (6) est muni
d'une goupille horizontale pouvant se mettre en prise avec le dispositif décélérateur
(20) et d'un élément magnétique ou ferromagnétique (45) pouvant interagir avec l'aimant
(40) de l'amortisseur.