Note: Descriptions are shown in the official language in which they were submitted.
. CA 02212879 1997-08-12
I - BACKGROUND OF THE INVEI\ITION
The present utility model consists in an electrical window-lift device,
for automobile windows in general, and its object is to supply a device that
allows the elimin~tion of electrical and mechanical complex systems that those
vehicles usually have.
A great amount of window-lift devices are lcnown, among which, the
most usual are the mechanical ones that end in an axle that going through the
walls of the panel of the door, mounts a handle of command.
As an alternative to these mechanisms there are di~erent types of
devices that could be driven by means of switches located in the panel of
command of the automobile, in the door or on both places simulta~eously, in
such a way that they can lbe driven by each passenger, by the driver or by any
of them respectively.
Among these devices there are those based on a pneumatic circuit that
includes a deposit of compressed air, as well as cylinders in each door, mside
which a piston moves from which a driving arm is projected. Hydraulic devices
that include a servo and pipes finished in cylinders endowed with arms pushers
are also known.
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In almost all the cases an electric control is included, as well as equally
electric motors that work on the corresponding compressor units and that are
worked by means of switches or pulsators.
As much pneumatic devices as the hydraulic ones that are known end in
arms that work mechanisms of elevation and descent of the glasses of the
windows. Among these mech~ni~m~, they are the compounds for ribs
intertwined in form of "X", until those integrated by groups of wheels and
jagged bars, as well as the ones composed by pinions connected with jagged
tracks.
Electromechanical devices are also known, that include a central motor
moving unit provided by means of tr~n~mi.~sion of movement that, crossing the
doors, they enter toward the interior of the panel where they are connected
with the mech~ni~m of elevation of the glass.
Most of the well-known devices are compound by a quantity of central
means, common to all the doors, from which leave different conduits that,
crossing the doors of the vehicle, they end connected to the mech~ni~m
corresponding to the glass of each window. This does not only give place to
the presence of more complex facilities, but rather it is translated in bigger
production costs originated in the protection means and insurance of these
facilities.
~ CA 02212879 1997-08-12
These problems are resolved by means of the present electric window-
lift device. It is a motorreducer fixed to the inferior part of the glass of the
window whose axis has nonskid bodies. The periphery of these bodies is
embraced by lengthened flexible bands whose ends are anchored in the panel
of the door. In this way, when working the switch of the circuit that feeds the
motorreducer, the gyratory movement of the axis and of the nonskid body
becomes a rectilinea~ movement of the glass in their sliding grooved guides.
This set is supplemented by a tubular compensator spring that, threaded in the
axis and anchored to it, is also anchored in the frame of the glass, so that it is
loaded of tension du~ng the descent alld it cooperates during the ascent of the
mentioned glass.
With this device the complex devices that cross the doors, already
mentioned, are elimin~ted, as well as the mechanisms of each door based on
metallic parts such as jagged wheels, pinions, tracks, ribs, etc. In this way a
much more light, economic device is obtained and of very e~lcient operation.
Il - Illustrations
For better clarity and understanding of the object of the utility model, it
is illustrated with several fi~res in which it has been represented in one of its
favorite ways of embodiment, everything simply as an illustrative example, not
limiting:
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Figure 1 is a lateral view of the vehicle of application, with a
longitl1(1in~1 section in the door that allows to appreciate the location of the
electric window-liflc device.
Figure 2 is a lateral view of the present window-lift device that allows to
observe the disposition of its different component parts. The motorreductor
fixed to the frame of the glass is clearly distinguished, as well as the nonskid
bodies that, mounted in their axis, are embraced by the lengthened bands. In
the ends of the bands the hook means are seen, while between both nonskid
bodies the tubular compensator spring is appreciated.
Figure 3~ is a fi ont view of a traverse section of the door with the glass
in its inferior position.
Figure 3b is a view like the previous one but with the glass in superior
position.
In the different figures, the same reference numbers indicate same or
corresponding parts, and the groups of several elements have been pointed out
with the letters.
Listing of the main references:
(a) vehicle.
(b) doorof(a).
(b ') frame of the window of (b).
(c) motorreducer.
(d) hookingmeans.
(1) glass.
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(1') lateral borders ofthe glass (1).
- (2) electric motor.
(3) reducer.
(4) fixing means of (c) to (1).
(5) lengthenedband.
(5') complete embrace or embracing spire.
(5") jagged internal face of (5).
(5"') extreme opened in the form of aIl eyelet that can be hooked.
(6) nonskid body.
(6') jagged periphery of the body (6).
(7) tubula~ compensator spring.
(7') anchorage of (7) in (9).
(7") aMchorage of (7) in (8).
(8) motor axis of (c).
(8') extremeof(8).
(9) frame of glass (1).
(10) support of axis (8).
(11) tensilespring.
(11') inserthook.
(11") anchoragehook.
(12) grooved guide ofthe glass (1).
(13) panelofthedoor(b).
(14) ~nferioranchorages.
(15) superioranchorages.
(16) rigidhooksofinsertion-anchorage.
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111 - Main Object
To the specified ends the electric window-lLiflc device, for windows of
vehicles in general, is of the type in which the glass (1), being mobile, is
slidingly channeledL in the opposed grooved guides (12) of a frame (b') that,
defining a~ opening of variable enabling by the own glass (1), is part of a panel
(13), generally member of a door (b) of the vehicle (a); and the mentioned
glass (1) is mounted on a firame (9) that, through means of transmission of
movement, is operable by an electric motoreducer (c), component of a circuit
that includes a switching means; said glass (1) lbeing moveable in the same
guides (12) between two limit points that correspond to the closing and
opening positions, respectively, as well as to other intermediate ones; this
device is characterized because the motoreducer (c) that counts with fi1xation
means (4) to said glass (1), is provided of a nonskid body (6) illL whose
periphery (6'), at least, a flexible and lengthened band (5) has nonskid embrace
the one which, su~ect by its ends (5"') to the pa~el (13), constitutes the track
of displacement of said nonskid body (6) that is the means transmitter of the
movement, transformed from gyrating in the axis (8) of the motoreducer (c), in
rectilinear-alternative movement ofthe glass (1) among its guides (12).
IV -DESCRIPTION
. CA 02212879 1997-08-12
The device of the present utility model consists on an electric window-
lift, for windows of vehicles in general.
In general terms it is an applicable device to the door (b) of a vehicle (a).
Said door (b) includes a window frame (b') whose opening is ena~led variably
by a glass (1) to which a motoreducer (c) is fixed. The latter (c) is provided of
a nonskid body (6) that is emlbraced by, at least, a lengthened band (5)
anchored (14) and (15) in the panel (13) of the door (b), although in the
embodiment that is described, the device includes two nonskid lbodies (6) and
two lengthened bands (5).
More particularly, the door (b) of the vehicle (a) each, conform grooved
guides (12) that extend from frame (b') ofthe window until panel (13), in the
inferior part of the mentioned door (b). In these grooved guides (12) tl1e lateral
borders (1') ofthe glass (1) are slidingly fixed.
On the other hand the glass (1) has prepared in its inferior part a frame
(9) to which the motoreducer is linked (c) through fixing means (4). The
motoreducer (c) is aIl unit composed by an electr~c motor and a reducer that
has for exit a motor axis (8). This axis (8) is prolonged in a parallel way to the
fi~ame (9) until finishing in an end (8') rotatively mounted in a support (10) that,
while on one haMd it conforms a bearing for the one mentioned end (8'), on the
other hand it is fixed to the frame (9) of the glass (1).
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The axis (8) is provided of two nonskid bodies (6) with d~m form
whose peripheries (6') are jagged. In these peripheries (6'),each, have their
nonskid embrace the internal i~aces (5"), also jagged, of lengthened and flexible
bands(5). These lengthened bands (5) cross sidelong to the motor axis (8) and
each one of them (5) is rolled helically on their nonskid body (6), to which it
confers a complete embrace conforming a spire embracing (5').
Starting from the mentioned embrace or spire embracing (5'), each band
(5) is projected in an inferior tract and another superior, both finished in
respective ends opened in the form of an eyelet that can be hooked (5"').
These ends (5"') can be hooked to hooking means (d) that link these
lengthened bands (5) with the panel (13) of the door (b).
In this way, in the inferior part, the hooking means (d) are constituted by
tensile springs (11), each one (11) of which is endowed with an insert hook
(11') [in the end open in the form of an eyelet (5"')] and with another hook
(11 ") dedicated to the respective inferior anchorage (1 4) of the panel (1 3).
In the superior part of the panel (13), the hooking means (d) of the
lengthened bands (5) are constituted by rigid hooks of insert-anchorage (16)
that link these ballds (5) with tlhe superior anchorages (15) ofthe parlel (13).
On the motor axis (8), in an inte~nediate disposition lbetween both
nonskid bodies (6), a tubular compensator spring (7) is coaxially mow1ted. This
spring (7) that is threaded in the axis (8), has an end that conforms an
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anchorage (7") in the axis (8), while the other end ~mishes in another
anchorage (7') in the frame (9) of the glass (1).
The set works ;n the following way:
Being the glass (1) at the top of its upward career, i~ closes the opening
defined by the frame (b') of the window of the door (b). If under those
conditions the switch of the circuit of the motoreducer is worked (c), the motor
axis (8) of the latter (c) is ~nim~ted of gyrating movement, the same as the
nonskid bodies (6) that said axis (8) has solidarily mounted.
So much the periphery (6') of the nonskid bodies (6) as the intemal faces
(5") of the flexible lengthened ba~ds (5) each, defime surfaces of nonskid
opposed support. This way each lengthened band (5), anchored (14) and (15)
in the panel (13), constitutes the track of displacemen~ of their corresponding
nonskid body (6). It is so that this body (6) descends accompamed by the spire
embracing (5') that the lband (5) goes conforming in its run.
As the motoreducer (c) is linked to the glass (1) through fixation means
(4) that links it with the frame (9), the nonskid bodies (6) are movement
transmitting means that, being revolving in the motor axis (8~, becomes
rectilinear movement alternatingly upward-descending of the glass (1), among
the grooved guides (12) ofthe door (b).
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Together with this, the tubular compensator spring(7) is stretched by the
descent of the frame (9) [in which one of its ends has anchorage (7')], being
loaded of tension in the sense of the descending career of the glass (1). This
way it reaches the maximum tension in the inferior position ofthe glass (1).
Therefore when beginning the upward career of the mentioned glass ( I ) the
tulbular compensator spring(7) lbehaves as cooperating with the worl~ of the
motoreducer (c).
It is certain that being the present utility model taken to the practice,
modifications will be able to be introduced concerning certain construction and
form details, without implying to move away from the fundamental principles
that are considered clearly in the claim clauses that continue next:
