BACKGROUND OF THE INVENTION
[0001] The present invention relates to a motorized concealable sliding door, having an
improved box.
[0002] As is known, there are already commercially available concealable sliding doors to
be used both for outside and inside environments, which are provided with a door frame
defining a box which is made of fretted strip elements which are connected to one
another so as to provide the construction to be introduced into the wall.
[0003] In order to facilitate the coupling of the box covering plastering, it is necessary
to apply a grating net or the like, extending through the two major faces of the box.
[0004] The box, in particular, is made of galvanized sheet metal elements which are damaged
in those regions thereof where is performed a high temperature welding operation,
that is one of the methods used for coupling the grating net to the box.
[0005] Under these conditions there are generated spots where the galvanized protection
is-lacking and at these spots, the assembled metal parts can be easily subjected to
rust.
[0006] To avoid the damaging of the galvanized protection and the corresponding formation
of rush fixing methods other than welding have been proposed in the art; for instance,
document EP-A-0 505 614 discloses a sliding door in which the grating net is fixed
to the galvanized metal box by means of traversal staves which an previously fixed
to the box by means of rivets, said states having flaps which can be suitably bent
so as to grip the net.
[0007] Another problem is that prior solutions are affected by great difficulties, in particular
with respect to the application of a driving assembly, since they require a rather
complex installation operation with consequent large size and projection of the door
from the wall, thereby the wall housing the door can not be practically further exploited.
[0008] Another drawback of prior solutions is that prior sliding doors of the above mentioned
type are scarcely flexible in operation and, moreover, they do not afford the possibility
of making a double sliding door, since the prior constructions are not suitable to
provide the necessary width for a double sliding door.
[0009] Yet another problem, moreover, is that of a poor thermal insulation of prior sliding
doors, with consequent great thermal loss spots through the door.
SUMMARY OF THE INVENTION
[0010] Accordingly, the aim of the present invention is to overcome the above mentioned
drawbacks, by providing a motorized concealable sliding door including an improved
box, in which there are completely eliminated the welded regions necessary for connecting
the grating net and the box strip elements, so that the sliding door can be advantageously
used mainly in outside applications.
[0011] Within the scope of the above mentioned aim, a main object of the present invention
is to provide such a motorized sliding door, which allows to house its driving motor
in a very compact manner, so as to prevent projecting regions from being generated
with respect to the wall, thereby allowing the wall to be exploited for other applications.
[0012] Another object of the present invention is to provide such a door construction in
which the rails,together with the driving members,can be reassembled outside of the
door box and then can be mounted by a quick connection system on the top cross member
of the door.
[0013] Yet another object of the present invention is to provide such a sliding door which
is very reliable and safe in operation.
[0014] According to one aspect of the present invention, the above mentioned aim and objects,
as well as yet other objects, which will become more apparent hereinafter, are achieved
by a motorized concealable sliding door as defined in claim 1.
BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Further characteristics and advantages of the present invention will become more
apparent hereinafter from the following description of a preferred, though not exclusive,
embodiment of a motorized concealable sliding door provided with an improved box,
which is illustrated, by way of an indicative but not limitative example, in the accompanying
drawings, where:
Figure 1 is a schematic elevation view illustrating the motorized sliding door according
to the invention, and in which there is clearly also shown the door box;
Figure 2 shows a major or main wall or panel of the box, to which there is applied
a grating net;
Figure 3 is a schematic cross-sectional view illustrating the connection between the
grating net and box;
Figure 4 is a horizontal cross-sectional view illustrating the box with the grating
net and thermally insulating layers;
Figure 5 is a schematic top-plane and cross-sectional horizontal view of the sliding
door according to the present invention;
Figure 6 is a cross-sectional view illustrating the top sliding guides of the door;
Figure 7 is an elevation view illustrating the driving means for driving the sliding
door;
Figure 8 is a top plane view of the subject driving means.
Figure 9 illustrates a motor-reducing unit for manually driving the door;
Figure 10 is a cross-sectional view illustrating the electric closure door bolt;
Figure 11 is a perspective view of the door bolts; and
Figure 12 is a vertical cross-sectional view illustrating a sliding door provided
with a double sliding door wing.
DESCRIPTION OF THE PREFERRED EMBODIMENTS
[0016] With reference to the number references of the above disclosed figures, the motorizing
concealable sliding door provided with an improved door box according to the present
invention, which has been generally indicated at the reference number 1, comprises
a door frame 2, which is advantageously made of suitably contoured sheet metal section
members and which defines a door box 3 arranged adjoining the opening port of the
door.
[0017] This box, in particular, is made of fretted strip like elements 4 which are slidably
connected to one another and caulked so as to mutually lock these elements.
[0018] The strip elements are connected by a bottom strip element 5 closing at the end the
door box.
[0019] As stated, the door box is made of galvanized fretted strip like elements and, heretofore,
it was very difficult to connect to the door box the grating net 10 which is conventionally
used for coupling the wall finishing plastering applied on the wall in which the door
box is usually housed.
[0020] A main feature of the present invention is that the grating net 10 is connected by
clips 11 which are engaged on strip-like elements and suitably bent so as to provide
a mechanical type of connection, which does not damage the galvanized protection.
[0021] Inside the door box there are provided thermally insulated layers 12, providing a
very good thermal insulation and barrier against heat losses.
[0022] Another important feature of the present invention is that there are provided motorizing
or driving means, comprising an electric motor 20 which is connected to the top cross-member
of the door frame and is arranged at an intermediate portion of the door.
[0023] The electric motor 20, through a bevel gear pair 21, drives a toothed pulley 22,
entraining a toothed belt, indicated at the reference number 23, connected to one
of the truck assemblies 24 supporting the door.
[0024] The toothed belt 23 is further entrained on a transmissione toothed pulley 25, arranged
near the rabbet of the door and also supported by the top cross-member.
[0025] As is clearly shown in figure 6, the truck assemblies 24 can slide on rails 25 having
a C-shape and also connected to the top cross-member 26 of the door frame.
[0026] To the truck assemblies 24 there is connected a wing, indicated at the reference
number 30, which, owing to the very good strength of this construction, can also have
a comparatively great weight.
[0027] Moreover, the motor further comprises a coaxial-axis motor reducing unit, which allows
the possibility of manually opening the door in case of power failure or other emergency
cases.
[0028] In this connection it should be apparent that by arranging the electric motor not
at the end portions of the rail, but slightly beyond the start part of the box, it
is possible, with respect to prior systems, to reduce the length of the driving assemblies,
with a consequent small size and effective damping of possible vibration.
[0029] In order to open the door, at the abutment edge of the wing 30 there is provided
a guide vertical section member 31 of omega shape, inside which can slide a small
bolt 32, comprising a bolt rod including a contoured elongated slot 33, engaging with
a locking pin element 34 provided on the door rabbet.
[0030] At the top the bolt 32 is provided with a bolt block 35, having a recess 36 in which
can be engaged the head portion 37 of a rod 38 connected to an electromagnet 39 which
will drive the bolt 32 from its locking position to its releasing position and vice
versa.
[0031] With the disclosed connection assembly, the electromagnet is housed in the fixed
door part and will cause the contoured head 37 to be engaged in the seat 36, as the
door wing 30 is closed, and then it will allow the subsequent translating motion providing
the locking of the door.
[0032] In order to release this locking, for example in a case of power failure, there is
provided a manual unlocking lever, indicated at the reference numer 40, which directly
operates on the electromagnet.
[0033] As is shown in figure 12 it is also possible, by holding those same designing features
which have been above disclosed, to provide a sliding double wing door, the wings
of which are indicated at 30a and 30b, which are arranged adjoining one another and
housed ina door box which, conseguently, will have a greater width.
[0034] From the above disclosure it should be apparent that the invention fully achieves
the intended aim and objects.
[0035] In particular, the fact is to be pointed out that a sliding door has been made, both
for outside and inside use, in which the grating net can be applied to the door box
in a very satisfactory way, owing to the provision of the above disclosed clips, which
are mechanically connected in the galvanized region without damaging the latter.
[0036] Another very important aspect of the present invention is that the electric motor
is so arranged that it allows to reduce to a minimum the occupied space, and moreover
provides a very improved operation.
[0037] In practicing the invention, the used material, as well as the contigent size and
shape can be according to requirements.
1. motorized concealable sliding door (1) having at least a door wing (30) and a box
(3) for housing said door wing (30) where in its open position, said door further
comprising a frame (2) defining sliding rails (25) for said at least door wing, said
box (3), being suitable to be housed inside a wall, grating elements being provided
on the major faces of said box (3), characterized in that said box (3) is formed by
fretted and galvanized strip like elements (4) and said grating elements are connected
by connecting clips (11) engaged on said strip-like elements (4) and suitable to mechanically
connect said grating elements and box.
2. A motorized sliding door according to Claim 1 characterized in that said door (1)
further comprises thermally insulating material layers (12) arranged on the inner
walls of said door box (3).
3. A motorized sliding door according to Claims 1 and 2 characterized in that said door
(1) further comprises a motorizing assembly for driving the door wing (30), said assembly
being connected to the top cross-member of the door frame.
4. A motorized sliding door according to one or more of the preceding claims characterized
in that said driving assembly is arranged substantially at a central portion of said
door box (3).
5. A motorized sliding door according to one or more of the preceding claims characterized
in that said driving assembly is connected through a bevel gear pair (21) to a toothed
pulley (22) cooperating with a toothed belt (23) entrained on a transmission toothed
pulley (25) and being connected to one of the door wing sliding truck assemblies.
6. A motorized sliding door according to one or more of the preceding claims characterized
in that said door (1) further comprises a motor-reducing unit of the coaxial-axis
type, for allowing the door to be manually opened.
7. A motorized sliding door according to one or more of the preceding claims characterized
in that said door further comprises a guide vertical section member (31) for closing
the door wing (30), said element being omega shaped and connected at the door wing
abutment edge, in said omega shaped element there being slidably provided a both (32)
including dt least an elongated slot (33) engageable with a locking pin element (34)
provided on the door rabbit, said locking element being connected to a top block element
(35) and being provided with a mating seat (36) which can be connected to a shaped
head portion (37) in turn connected to an electromagnet (39) mounted on the door top
cross member.
8. A motorized sliding door according to one or more of the preceding claims characterized
in that said door further comprises two adjoining sliding door wings.
1. Eine motorgesteuerte, versenkbare Schiebetür (1) mit mindestens einem Türflügel (30)
und einem Gehäuse (3), um diesen Türflügel (30) aufzunehmen, wenn er sich in seiner
geöffneten Stellung befindet, wobei diese Tür ferner einen Rahmen (2) umfaßt, der
Gleitschienen (25) für diesen mindestens einen Türflügel aufweist, wobei dieses Gehäuse
(3) zum Einbau in eine Wand geeignet ist und Gitterteile auf den Hauptflächen dieses
Gehäuses (3) bereitgestellt sind, dadurch gekennzeichnet, daß dieses Gehäuse (3) aus
gewellten und galvanisch behandelten, streifenförmigen Teilen (4) gebildet ist und
diese Gitterteile über Verbindungsglieder (11) verbunden sind, die an diesen streifenförmigen
Teilen (4) befestigt sind, und die zur mechanischen Verbindung dieser Gitterteile
und dieses Gehäuses geeignet sind.
2. Eine motorgesteuerte Schiebetür nach Anspruch 1, dadurch gekennzeichnet, daß diese
Tür (1) ferner Schichten aus thermisch isolierendem Material (12) auf den Innenseiten
dieses Gehäuses (3) der Tür umfaßt.
3. Eine motorgesteuerte Schiebetür nach den Ansprüchen 1 und 2, dadurch gekennzeichnet,
daß diese Tür (1) ferner eine Motorbaugruppe zum Betätigen des Türflügels (30) umfaßt,
wobei diese Motorbaugruppe mit dem oberen Querteil des Türrahmens verbunden ist.
4. Eine motorgesteuerte Schiebetür nach einem oder mehreren der vorhergehenden Ansprüche,
dadurch gekennzeichnet, daß sich diese Steuerbaugruppe im wesentlichen in einem mittleren
Teil dieses Türgehäuses (3) befindet.
5. Eine motorgesteuerte Schiebetür nach einem oder mehreren der vorhergehenden Ansprüche,
dadurch gekennzeichnet, daß diese Steuerbaugruppe über ein Kegelradpaar (21) mit einer
Zahnrolle (22) verbunden ist, die mit einem Zahnriemen (23) zusammenwirkt, der von
einer Zahnrolle (25) getragen wird und mit einer der Gleitschienen des Türflügels
verbunden ist.
6. Eine motorgesteuerte Schiebetür nach einem oder mehreren der vorhergehenden Ansprüche,
dadurch gekennzeichnet, daß diese Tür (1) ferner eine Untersetzungseinheit vom Typ
mit koaxialen Achsen besitzt, um die Öffnung der Tür von Hand zu ermöglichen.
7. Eine motorgesteuerte Schiebetür nach einem oder mehreren der vorhergehenden Ansprüche,
dadurch gekennzeichnet, daß diese Tür ferner ein senkrechtes Führungsprofilteil (31)
zum Schließen des Türflügels (30) umfaßt, wobei dieses Teil die Form eines Omega besitzt
und mit der Stoßkante des Türflügels verbunden ist, wobei in diesem Teil mit der Form
eines Omega ein Riegel (32) gleitend bereitgestellt ist, der mindestens eine längliche
Öffnung (33) besitzt, in die ein Schließzapfen (34) eingeführt werden kann, der auf
der Anschlagleiste der Tür bereitgestellt ist, wobei dieses Schließteil mit einem
oberen Bolzenkopf (35) verbunden ist und mit einer Aufnahme (36) bereitgestellt ist,
die mit einem ausgeformten Kopfstück (37) verbunden verden kann, das seinerseits mit
einem auf dem oberen Querteil der Tür angebrachten Elektromagneten (39) verbunden
ist.
8. Eine motorgesteuerte Schiebetür nach einem oder mehreren der vorhergehenden Ansprüche,
dadurch gekennzeichnet, daß diese Tür ferner zwei benachbarte gleitende Türflügel
besitzt.
1. Porte coulissante motorisée escamotable (1) ayant au moins un battant (30) et un caisson
(3) pour loger ledit battant (30) lorsqu'il se trouve dans sa position d'ouverture,
ladite porte comprenant en outre un encadrement (2) définissant des glissières (25)
pour au moins ledit battant, ledit caisson (3) étant idoine à être encastré dans une
paroi, des éléments formant un grillage étant mis en oeuvre sur les surfaces principales
dudit caisson (3), caractérisée en ce que ledit caisson (3) est constitué par des
bandes (4) ondulées et galvanisées et que lesdits éléments formant un grillage sont
reliés moyennant des agrafes (11), lesquelles sont fixées sur lesdites bandes (4)
et qui sont aptes à relier mécaniquement lesdites bandes et le caisson.
2. Porte coulissante motorisée selon la revendication 1, caractérisée en ce que ladite
porte (1) de plus comprend des couches (12) en matérieau isolant thermique situées
sur les parois internes dudit caisson (3) de la porte.
3. Porte coulissante motorisée selon les revendications 1 et 2, caractérisée en ce que
ladite porte (1) de plus comprend un dispositif moteur pour entraîner le battant (30)
de la porte, ledit dispositif étant fixé à la traverse supérieure de l'encadrement
de la porte.
4. Porte coulissante motorisée selon l'une ou plusieurs des revendications précédentes,
caractérisée en ce que ledit dispositif d'entraînement est situé essentiellement à
un point central dudit caisson (3) de la porte.
5. Porte coulissante motorisée selon l'une ou plusieurs des revendications précédentes,
caractérisée en ce que ledit dispositif d'entraînement est relié par l'intermédiaire
d'un engrenage conique (21) à une poulie à dents (22) coopérant avec une courroie
dentelée (23), entraînée par une poulie à dents (25) de transmission et reliée à l'un
des chariots glissants du battant de la porte.
6. Porte coulissante motorisée selon l'une ou plusieurs des revendications précédentes,
caractérisée en ce que ladite porte (1) de plus comprend une unité réductrice du type
ayant des axes coaxiaux pour permettre l'ouverture à la main de ladite porte.
7. Porte coulissante motorisée selon l'une ou plusieurs des revendications précédentes,
caractérisée en ce que ladite porte (1) de plus comprend un élément profilé vertical
guide (31) pour fermer le battant (30) de la porte, ledit élément ayant la forme d'un
oméga et étant relié au bord de butée du battant, dans ledit élément ayant la forme
d'un oméga étant mis en oeuvre un verrou glissant (32) comprenant au moins une fente
allongée (33) dans laquelle peut s'encastrer un goujon de fermeture (34) mis en oeuvre
sur la battée, ledit élément de fermeture étant relié à un élément de serrage supérieur
(35) doté d'une encoche de raccordement (36) laquelle peut être reliée à une tête
profilée (37) de sa part reliée à un électro-aimant (39) monté sur la traverse supérieure
de la porte.
8. Porte coulissante motorisée selon l'une ou plusieurs des revendications précédentes,
caractérisée en ce que ladite porte de plus comprend deux battants coulissants voisins.