OBJECT OF THE INVENTION
[0001] As expressed in the title of this specification, the following patent refers to a
movement transmitting device for telescopic leaves of elevator doors, which is to
be installed in elevator doors of telescopic leaves where in the closing and opening
of the door the rapid leaf conveys in its movement the slow leaf, in such a way that
a pair of horizontally aligned wheels, used to move and guide the slow carriage by
the guide of the support plates, defines two channels, one to be coupled to the guide
and the other for passing and conveying the cable for transmitting movement to the
slow carriage.
[0002] In this way, a pair of wheels for conveying and guiding the slow carriage has a double
channel and hence it is not necessary to install specific pulleys for the cable transmitting
movement from the rapid carriage to the slow carriage. This simplifies the structure
of the slow carriage itself and the manufacturing thereof, reducing the number of
pieces and the nuts and bolts, which implies a reduction in labor, thus achieving
a reduction of costs.
FIELD OF APPLICATION
[0003] The movement transmitting device that is presented is applicable to elevator doors
comprised of some telescopic leaves, which are connected to the corresponding conveying
and guiding carriage, in such a way that the rapid carriage transmits movement to
the slow carriage by means of the corresponding movement transmitting cable.
BACKGROUND OF THE INVENTION
[0004] Conventionally, the telescopic leaves of elevator doors are fastened to the corresponding
conveying and guiding carriage by the movement guide in the opening and closing operations,
in such a way that in order to transmit movement from the rapid carriage to the slow
carriage, the conveying and guiding carriage has a transmitting cable installed between
a pair of pulleys assembled in the structure of the slow carriage itself, and whose
cable is fastened to the structure of the rapid carriage, whereby when the pin relative
to the cabin door conveys the rapid carriage in the closing and opening of the door
said carriage is moved and the transmitting cable transmits movement to the slow carriage.
[0005] In this way, the slow carriage is conveyed by the corresponding guide of the support
plate by two pairs of wheels that permit stable movement as each pair is aligned with
respect to the guide and for the assembly of the cable transmitting movement to the
slow carriage from the rapid carriage, the slow carriage should include a pair of
pulleys between which there is the cable that is fastened to the rapid carriage and
that in turn is fastened to the support plate itself.
[0006] Hence, the slow carriage should be mechanized so that the two pairs of guiding wheels
of the carriage and the pair of assembly pulleys of the cable transmitting movement
from the rapid carriage to the slow carriage are mounted in the slow carriage. The
cited cable is connected by its ends to the support plate itself which permits the
rapid carriage in its movement in the closing and opening to travel double the space
traveled by the slow carriage.
[0007] With this structure it is necessary to include two pairs of wheels in order to convey
and guide the slow carriage to which the corresponding leaf of the door and a pair
of pulleys between which the cable transmitting movement from the rapid carriage to
the slow carriage is mounted, are fastened. This involves the corresponding group
of pieces and nuts and bolts, as well as the assembly time used therein.
[0008] A background to the invention can be found in document ES2017309, which discloses
some improvements to systems for moving automatic doors in lifts. They consist in
that the sliding rail of the pulleys secured to the panels of the door, which is fixed
to the lintel, is defined in the actual lintel and has, in order to carry out its
function, a pair of longitudinal channels. The threshold element is also a guide for
the panels. The panels, a rapid one and another, slow one, are suspended from respective
pairs of pulleys and, on the shafts of those corresponding to the slow panel, are
also supported the pulleys for sliding of the transmission cable. There are four guide
points for each one of the panels, its vertical position with regulation of the screws
for fastening the panels to their suspension supports being ensured.
[0009] Another background to the invention is disclosed in document DE1456404, showing a
sliding door for lift compartments which comprises at least a door element, shifted
by a motor and driven by a chain device, characterized in that the door element is
coupled to a rotating magnetic field motor being with a constant potential difference,
in such a way that at end positions it is kept by means of cushioning means with a
relatively long cushioning stroke.
[0010] A further background to the invention can be found in document EP0709333, which discloses
an apparatus for synchronising the movements of the door panels of a telescopic elevator
door. The door panels of a telescoping elevator door are suspended by means of a roller
arrangement. Said apparatus for synchronising the movements of the door panels comprises
a flexible synchronising means. Two rollers in the roller arrangement are provided
with a guide adapted for the synchronising means. The synchronising means is passed
in the roller arrangement over two rollers provided with a guide.
DESCRIPTION OF THE INVENTION
[0011] The present specification describes a movement transmitting device as claimed, that
is to be assembled in elevator doors of telescopic leaves that are fastened to the
corresponding carriage that mounts some pairs of wheels in order to convey and guide
the carriage by the guide of the support plate, transmitting the movement in the opening
and closing of the door from the rapid carriage to the slow carriage by means of a
transmitting cable assembled between two pulleys of the slow carriage and anchored
to the rapid carriage. The transmitting device is defined by a wheel, aligned horizontally,
of each pair of wheels for conveying and guiding the carriage, having on its surface
two channels. One channel is for the positioning thereof in the guide of the support
plate and the cable transmitting movement from the rapid carriage to the slow carriage
is assembled in the second channel, which is considerably smaller than the channel
guiding both wheels.
[0012] In this way, the installation of the pair of conventional pulleys in which the transmitting
cable is assembled, as well as the group of pieces and nuts and bolts necessary for
this purpose, is avoided. Furthermore, there is a reduction of labor which results
in a lower economic cost.
[0013] This advantages have been achieved thanks to an arrangement object of the invention,
in which the guide in the support plate is common to the pairs of wheels for conveying
and guiding the carriages; in which the guide in the support plate and the pairs of
wheels for conveying and guiding the carriages are contained in a plane parallel to
leaves; and in which the carriages are arranged on a common side with respect to the
support plate plane.
[0014] In order to complement the description that is going to be made hereinafter and providing
a better understanding of the characteristics of the invention, the present specification
is accompanied by a set of drawings, in whose figures the most characteristic details
of the invention are represented in an illustrative and non-restrictive manner.
BRIEF DESCRIPTION OF THE DRAWINGS
[0015]
Figure 1 shows a front detailed view of the pair of telescopic leaves, components
of an elevator door, showing how they are anchored to the respective conveying and
guiding carriage, as well as the cable transmitting movement from the rapid carriage
to the slow carriage assembled between a pair of wheels for conveying and guiding
the slow carriage, for which purpose said wheels have on their surface a double channel.
Figure 2 shows a schematic sectioned view, according to sections I-I of the preceding
figure with regard to a diametric vertical plane with respect to the wheels for conveying
and guiding the slow carriage, showing how one of them has a double channel, one channel
for adaptation thereof to the conveying guide and the other considerably smaller channel
for the passing of the movement transmitting cable.
DESCRIPTION OF A PREFERRED EMBODIMENT
[0016] In view of the commented figures and in accordance with the numbering used, we can
see how the telescopic leaves (1) and (2) that comprise the corresponding elevator
door are fastened to the respective carriage (3) and (4) for conveying and guiding
same by the guide of the mechanism support plate (5), in such a way that the carriages
(3) and (4) have two pairs of wheels, each one of them for conveyance thereof by the
guide of the support plate (5).
[0017] A wheel (6) of each one of the two pairs for conveying and guiding the slow carriage
has a double channel, in such a way that by means of the channel (7) it is arranged
in the guide of the support plate (5) and by the channel (8), which is considerably
smaller, the cable (9) transmitting movement from the rapid carriage (4) to the slow
carriage (3) being made to pass through.
[0018] As it conventionally happens, the cable (9) transmitting movement from the rapid
carriage (4) to the slow carriage (3) is fastened by one of its ends at a place (10)
and it can be appropriately tightened, whereas at the other place, the cable is fastened
to the structure of the rapid carriage (4), in such a way that the movement of said
rapid carriage (4) causes movement of the cable (9) and in turn of the slow carriage
(3).
[0019] Given that the wheels themselves (6) are materialized by a double channel (7) and
(8) in order to guide them by the guide of the support plate (5) and for the guiding
of the transmitting cable (9), the need to adapt the structure of the slow carriage
for the installation of two pulleys in order to assemble the transmitting cable, as
well as the two pulleys themselves and the corresponding elements for the assembly
thereof is avoided. Consequently, the material cost and labor are reduced, and thus
a reduction of the overall cost is obtained.
1. A movement transmitting device for telescopic leaves (1, 2) of elevator doors comprising:
a slow leaf (1);
a rapid leaf (2);
a slow carriage (3) for fastening the slow leaf (1);
a rapid carriage (4) for fastening the rapid leaf (2);
a guide in a support plate (5);
pairs of wheels for conveying and guiding the carriages (3, 4) along the guide of
the support plate (5);
a cable (9) for transmitting movement from the rapid carriage (4) to the slow carriage
(3) when opening and closing the door, said cable (9) being assembled between two
pulleys of the slow carriage (3) and being anchored to the rapid carriage (4);
a horizontally aligned pair of wheels (6) of the slow carriage (3), said wheels (6)
being provided on their surface with two channels (7, 8),
a channel (7) for positioning the wheel (6) in the guide of the support plate (5);
a channel (8) for guiding the cable (9);
the channel (8) being considerably smaller than the channel (7);
characterized in that
the guide in the support plate (5) is common to the pairs of wheels for conveying
and guiding the carriages (3, 4);
the guide in the support plate (5) and the pairs of wheels for conveying and guiding
the carriages (3, 4) are contained in a plane parallel to leaves (1,2);
the carriages (3, 4) are arranged on a common side with respect to the support
plate (5) plane.
1. Bewegungsübertragungsvorrichtung für Teleskop-Blätter (1, 2) von Fahrstuhltüren, die
umfasst:
ein langsames Blatt (1);
ein schnelles Blatt (2);
einen langsamen Wagen (3) zum Befestigen des langsamen Blattes (1);
einen schnellen Wagen (4) zum Befestigen des schnellen Blattes (2);
eine Führung in einer Trageplatte (5);
ein Paar Räder zum Transportieren und Führen der Wagen (3, 4) entlang der Führung
der Trageplatte (5);
ein Seil (9) zum Übertragen von Bewegung von dem schnellen Wagen (4) auf den langsamen
Wagen (3) beim Öffnen und Schließen der Tür, wobei das Seil (9) zwischen zwei Seilrollen
des langsamen Wagens (3) montiert und an dem schnellen Wagen (4) verankert ist;
ein horizontal ausgerichtetes Paar Räder (6) des langsamen Wagens (3), wobei die Räder
an ihrer Oberfläche mit zwei Rillen (7, 8) versehen sind, d.h.
einer Rille (7) zum Positionieren des Rades (6) in der Führung der Trageplatte (5);
einer Rille (8) zum Führen des Seils (9);
und die Rille (8) erheblich kleiner ist als die Rille (7);
dadurch gekennzeichnet, dass:
die Führung in der Trageplatte (5) von den Paaren von Rädern zum Transportieren und
Führen der Wagen (3, 4) gemeinsam genutzt wird;
die Führung in der Trageplatte (5) und die Paare von Rädern zum Transportieren und
Führen der Wagen (3, 4) in eine Ebene parallel zu den Blättern (1, 2) eingeschlossen
sind;
die Wagen (3, 4) auf einer gemeinsamen Seite in Bezug auf die Ebene der Trageplatte
(5) angeordnet sind.
1. Dispositif de transmission de mouvement à des vantaux télescopiques (1, 2) de portes
d'ascenseur comprenant :
un ventail lent (1) ;
un ventail rapide (2) ;
un chariot lent (3) pour fixer le ventail lent (1) ;
un chariot rapide (4) pour fixer le ventail rapide (2) ;
un guide dans une plaque de support (5) ;
des paires de roues pour convoyer et guider les chariots (3, 4) le long du guide de
la plaque de support (5) ;
un câble (9) pour transmettre un mouvement du chariot rapide (4) au chariot lent (3)
lors de l'ouverture et le fermeture de la porte, ledit câble (9) étant assemblé entre
deux poulies du chariot lent (3) et étant ancré au chariot rapide (4) ;
une paire de roues (6) alignées horizontalement du chariot lent (3), lesdites roues
(6) étant munies sur leur surface de deux canaux (7, 8),
un canal (7) pour posibionner la roue (6) dans le guide de la plaque de support (5)
;
un canal (8) pour guider le câble (9) ;
le canal (8) étant considérablement plus petit que le canal (7) ;
caractérisé en ce que
le guide dans la plaque de support (5) est commun aux paires de roues pour convoyer
et guider les chariots (3, 4) ;
le guide dans la plaque de support (5) et les paires de coures pour convoyer et
guider les chariots (3, 4) sont contenus dans un plan parallèle aux vantaux (1, 2)
;
les chariots (3, 4) sont agencés sur un côté commun par rapport au plan de la plaque
de support (5).