ES2279698A1 - Motor apparatus for e.g. windows, seats in automobiles includes pinion having one of two outer gears engaged with inner gear of second dentated crown - Google Patents

Abstract

A first crown and a pinion are mounted such that when an output shaft of the motor turns, the pinion rotates and displaces an inner gear of the first crown. The pinion has two outer gears, one of which is engaged with an inner gear of a second dentated crown. An independent claim is included for a mechanism included in the motor apparatus.

Description

Motor device for applications automobile, and mechanism that includes the motor device.

Technical Field of the Invention

The invention is included in the field of engines for moving automobile components, such as motors for driving windows, solar windows and vehicle seats

Background of the invention

Currently, the engines used to automobile applications (for example, for applications of power windows, solar windows and vehicle seats, to move the corresponding elements) are generally composed of a conventional brush DC motor and by a electronics module These engines incorporate the corresponding reducing group that is usually composed of a combination  worm-crown. The auger is driven by the engine and this in turn rotates the crown on whose output shaft it will have the necessary coupling elements for the activation of the corresponding accessory, be a window regulator, sunroof, etc. US-B-6528915 It describes such an engine.

These engines usually occupy a large volume and have a lot of weight In addition, the configuration of these engines usually be asymmetric, so you need an engine for the window regulator operation corresponding to the doors of the left and another for the window winder on the right, for example. Normally you want the configuration of the Doors be symmetrical with respect to the longitudinal axis of the vehicle;  therefore having an asymmetric motor configuration, it is necessary to have a type of engine for the doors on the left and another type of engine different for the doors on the right, to keep the symmetry required for the doors. Another aspect is Engine position: to reduce the moments produced by to close the door it is necessary that the center of gravity of the engine be located as close as possible to its hinges. With Asymmetric traditions engines, this requires having two engine types, one for the doors on the left and one for those on the right, with the corresponding disadvantages that It implies from a logistic point of view.

They have also been known for a long time flat motors, although its practical application is not yet known to car applications like the ones discussed above above. However, there are proposals for flat motors intended for the car. For example, WO-A-2005/021915 describes an engine plane, with the corresponding planetary reduction group. The group reducer comprises a large number of parts, which tends to Increase the cost of the device. In addition, the reducers planetariums tend to be noisy; to reduce the noise level, you can choose special materials, something that, however, It tends to increase costs.

On the other hand, there are the reducers cycloidal A cycloidal reducer is a circular reducing mechanism  in which the input and output axes are aligned. He cycloidal term comes from hypocycloid, which is defined as the curve drawn by a point on the circumference of a circle that wheel without sliding inside a circumference of greater radio. This type of reducer has an efficiency superior to provided by the worm-crown reducers such as currently used in window lift motors, especially when high reductions are used.

US-A-5820504 describes a cycloidal reducer, with double reduction, comprising a fixed crown, with an internal teeth and an eccentric coupled through a stem to the motor shaft. The eccentric engages in an inner hole of a first pinion with an outer teeth that Partially meshes with the internal teeth of the fixed crown. As a consequence of the axis movement, the eccentric rotates in turn moves the first pinion that slides, through its teeth outside, inside the teeth of the fixed crown, so that the first pinion performs a rotating movement within the fixed crown Here the first reduction occurs, as consequence of the difference in diameter, and therefore of teeth, between the outer teeth of the first pinion and the inner teeth of the fixed crown.

The first pinion also has a serrated inside whose inside plays a second pinion that moves an axis output, to which the device to be moved will be attached. Between the second pinion and the inner teeth of the first pinion, Get the second reduction.

In certain applications, for example, in window lift applications in cars or sunroofs, the engine and motion transmission system have to withstand very important braking efforts when your journey ends, since the window or sunroof, when they reach the end of their run, collide with the edge of the corresponding window in the ascent race, and with a lower end of career limit in the descent race, which usually produces sudden stops of the engine.

Such sudden stops may result. problematic if a transmission system like the one used is used described in US-A-5820504, since might not be able to withstand such important efforts of braking, or you could see its lifespan reduced by such efforts, due to the configuration of the first pinion, that is, of the pinion with external and internal teeth, for the following reasons:

In the system described in US-A-5820504, the first reduction it is produced through the outer teeth of the first pinion, which acts on the fixed crown. In this first phase, it is about reduce engine output speed, which is very high; in this first reduction the power is achieved by speed and not by pair, therefore a large thickness is not needed to ensure a correct operation, and it may be sufficient to have a thickness reduced.

On the other hand, the second reduction occurs through the internal teeth of the first pinion, which acts on the toothed of the second pinion, which is coupled to the output shaft and therefore, to the device to move. This means that braking which causes the device to lock when it reaches its endpoint of career, is performed in this gear, that is, in the gear between the first pinion and the second pinion. Therefore, it would be desirable that this tooth had a thickness as large as possible to be able to withstand significant braking efforts.

Now, in the system described in US-A-5820504, regarding the first pinion, because this second toothed (in which the second pinion) is inside the outer teeth, the thickness of the internal teeth is less than the thickness of the external teeth, since that the outer teeth of the first pinion have to "distribute" its thickness between the thickness of the inner teeth of the first pinion (which is the one that meshes with the second pinion) and the thickness of the cam (as can be seen in the figures). This implies that the thickness of the outer teeth is greater than the thickness of the teeth inside, when the need for a teeth with great thickness is greater in the second phase of reduction, that is, in the second toothed (the inner teeth of the first pinion). Therefore, the configuration exposed in US-A-5820504 seems inadequate when it comes to applications like the ones that have been discussed the most above. This implies that the configuration of the first pinion can be not optimal for many applications, such as those mentioned above, in which the first pinion must act by one side on an output shaft of the motor, which rotates at high speed, and on the other hand (and through a second pinion) on another axis, the device drive, which must withstand large braking efforts

In addition, the system described in US-A-5820504 presents another problem which can also derive from the great efforts that they produce in blockages in applications such as windows, etc. At system described in US-A-5820504, the eccentric engages in a central hole of the first pinion, to produce its drag. Now the surface thickness of contact between the eccentric and the first pinion is smaller than the total thickness of the first pinion, because the thickness of the first pinion must be divided between the thickness of the inner teeth and the cam coupling or eccentric. This assumes that part of the pinion is cantilevered with respect to the cam or cam, or which is the same, with respect to the axis that produces the rotation of the first pinion. In addition, this cantilever section is where the second sprocket and, therefore, is where braking occurs during the blockages Such braking would cause the second pinion to exert a force on the inner teeth of the first pinion that it would cause a couple or pitch of the first pinion, since in the section where this force occurs, the first pinion is not supported through cam or eccentric. This pair would cause a destabilization and efforts that can reduce the shelf life of the reducer and make the device less reliable.

It is likely that this problem is irrelevant to many applications, but it can become relevant in applications that involve sudden braking important, for example, in windows or roof applications car lots where the stop is mechanical.

Description of the invention

A first aspect of the invention relates to a motor device for automobile applications, for example, for windows, solar windows and / or seats, comprising:

an engine with an output shaft;

a first fixedly mounted crown with with respect to the motor output shaft, said first crown having an internal teeth; Y

a pinion connected eccentrically and rotatably with respect to the output shaft (for example, by means of a cam or eccentric piece, analogous to what is described in US-A-5820504), said pinion having a first outer teeth that meshes in the inner teeth of the first crown, so that when turning the output shaft, the pinion performs a rotating displacement rolling in a geared manner on the internal teeth of the first crown (analogously to what is described in US-A-5820504).

According to the invention, the pinion has also a second outer teeth, and the device comprises also a second crown, mounted on a rotating basis, presenting said second crown an internal teeth, the pinion and the second crown coupled by a gear between the second external teeth of the pinion and the internal teeth of the second crown, so that a turn of the pinion rotates the second crown.

This configuration allows you to attach the first pinion on the motor output shaft so that the axis of motor output and / or an intermediate part (such as the eccentric part or cam) extends, at least substantially, through the totality (or, at least, through most of the totality) of the pinion thickness, which reduces the risk of its occurrence a pitching effort of the pinion with respect to the output shaft of the engine, when roughly pinion braking occurs (a through the second crown). This makes the invention can be especially useful in window or window systems solar in cars. In addition, the use of two external teeth on the pinion, displaced axially with respect to each other, allows to choose the thickness (in the direction of the axis of rotation) of the teeth of each teeth independently of the configuration of the other teeth, with the advantages that this implies. In addition, the configuration allows to obtain a volume and weight reduced

The engine can be a flat engine (you can consider that a flat motor is a motor with a height less than its width and length, or, in the case of a circular motor, with a height less than its diameter; in the field of engines electrical, the term flat motor is usually used to a certain group of engines, which includes, for example, engines "pancake" type and "brushless" type motors; the expert medium in the field knows perfectly what kind of engines corresponds to the expression "flat motor"). As it has been indicated above, using flat motors you can have engines that "have no hand", since they are usually symmetrical, so you will not need different engines for left door and right door to preserve the symmetry of the doors with respect of the longitudinal axis of the vehicle (unlike engines currently used, direct current brushes, whose configuration is usually asymmetric).

You can, for example, use a flat motor circulate in order to achieve the highest possible standardization. An engine of this type allows to locate the fixing points located with an angular separation of 120º, which implies that you can reduce the moments produced, since the center of gravity of the engine could be centered with respect to the points of fixation.

Additionally, these flat motors have better behavior before slamming, because its center of gravity It is centered with respect to the fixing points. In addition, its weight It is usually reduced.

That is, using these engines, you can get Higher performance One of the advantages of flat motors is that the air distance between the magnets is reduced than in conventional engines. This configuration also makes that the core, and therefore the rotor, be lighter, reducing rotor inertia and allowing them to be achieved accelerations / decelerations up to 10 times greater than in conventional engines

In addition, if motors of the type are used brushless, the tightness requirements of the waterproof housing they can be smaller, since in brushless motors, by not having of contacts that must be protected from water to avoid a bad engine operation, surface to be protected tightly It is significantly smaller.

In addition, a reduction of the number of different products required for the assembly of the car, since flat motors serve both the side right as for the left side.

The second outer gear of the pinion can have a diameter smaller than the first outer teeth.

The second crown may be associated with a motion transmission device, to transmit the movement of the second crown to at least one element of a car. The motion transmission device may be coupled to the second crown through a connecting piece (to the which motion transmission device can be attached by, for example, ribbed or serrated portions of coupling, in the connecting piece and in the device motion transmission).

Alternatively, the transmission device of movement can be directly coupled to the second crown (for example, it can be attached to the second crown by ribbed or serrated portions of coupling, in the second crown and in the motion transmission device, or by outgoing and / or fixing inlets provided in the own motion transmission device).

In either of these two cases, the device motor may comprise a damping element interposed between the motion transmission device and the second crown, to absorb at least part of the efforts that occur in the moment of sudden braking of the transmission device movement.

Alternatively to the options described more above, the motion transmission device and the second crown can be an integral part of a single piece, for example, in one piece obtained in mold.

The motion transmission device Can comprise a cable winding drum.

The pinion can be attached to the output shaft of the motor using an eccentric part or cam mounted in a hole on the pinion, for example, so that the pinion can rotate around said eccentric piece. The eccentric part can be substantially extend across the entire thickness of pinion, which can reduce the risk of momentum or pitch of the pinion with respect to the motor output shaft and / or with respect to to the eccentric part, for example, in the case of sudden braking to the exit.

The eccentric part can be an integral part of the motor output shaft.

The first crown can be a piece independent, or be an integral part of a part of the housing of the motor, for example, of a motor protection cover, what which would mean an additional reduction of the pieces necessary.

In the pinion, the first outer teeth can have teeth with a first thickness (in the direction of the axis of rotation), and the second outer teeth can have teeth with a second thickness (in the direction of the axis of rotation), said second being able to thickness be substantially greater than said first thickness
Sr.

This can have its advantages, since it allows design flexibility For example, you can have teeth of reduced thickness in the first phase of reduction (which can improve functioning) and very thick teeth in the second phase of reduction, namely, in the phase corresponding to the gear between the pinion and the second crown, something that allows make the teeth (in the second outer teeth) more resistant to  the efforts that occur in the case of a brake on the exit.

Another aspect of the invention relates to a actuation mechanism for a mobile element of a car, which it comprises a device according to what has been described above, operatively associated with said mobile element of the car, to move said mobile element (for example, in response to a action performed by the car user). The mobile element it can be part of a window lift system, part of a system of solar window or part of a seat, for example.

Description of the figures

To complement the description and in order to help a better understanding of the characteristics of the invention, according to preferred embodiments practice thereof, is accompanied as an integral part of said description, a set of figures in which with illustrative character and not limiting, the following has been represented:

Figure 1.- Shows an exploded view and schematic perspective of a device according to a First embodiment of the invention.

Figure 2.- Shows an exploded view and schematic perspective of a device according to a Second possible embodiment of the invention.

Figure 3.- Shows two schematic views in perspective of a second crown suitable for the first and second embodiment of the invention

Figure 4.- Shows a schematic view in axial section of the device according to the second embodiment of the invention.

Figure 5.- Shows an exploded view and schematic perspective of a device according to a third embodiment of the invention.

Figure 6.- Shows two schematic views in perspective of a motion transmission device of a type suitable for the third embodiment of the invention.

Figure 7.- Shows a schematic view in axial section of the device according to the third embodiment of the invention.

Figure 8.- Shows an exploded view and schematic perspective of a device according to a fourth embodiment of the invention.

Figure 9.- Shows two schematic views in perspective of a second crown suitable for said fourth embodiment of the invention.

Figure 10.- Shows two schematic views in perspective of a motion transmission device suitable for the fourth embodiment of the invention.

Figure 11.- Shows a schematic view in axial section of the device according to the fourth embodiment of the invention.

Figure 12.- Shows an exploded view and schematic perspective of a device according to a fifth embodiment of the invention.

Figure 13.- Shows two schematic views in perspective of a motion transmission device suitable for the fifth embodiment of the invention.

Figure 14.- Shows a schematic view in axial section of the device according to the fifth embodiment of the invention.

Figure 15.- Shows a schematic view in perspective of a plate that incorporates the first crown.

Figure 16.- Shows a schematic view in perspective of an eccentric piece that can be used for invention.

Figure 17.- Shows two schematic views in perspective of the pinion, of a type that can be used for the invention.

Figures 18-19.- Show schematically actuation mechanisms for mobile elements of a car (in this case, corresponding to the window regulator system and to the solar window), with a device according to the invention operatively associated with the mobile element, to move said mobile element.

Preferred Embodiment of the Invention

In figure 1 you can see some elements that can be part of a device according to a possible embodiment of the invention.

First, a flat 1 motor is observed and with an output shaft 11. The flat motor may have some advantages over other engines, as discussed more above. Within the flat motors that exist in the market, You can choose a brushless motor (brushless). Is a motor class that operates using electronic switching of phase currents, instead of mechanical switching (motors of DC). Brushless motors generally have a permanent magnet rotor and a winding stator. It is an engine in the which is the switching function (usually performed by brushes in a traditional DC motor) is replaced by an equivalent electronics, therefore, in the absence mechanical switching (brushes) life expectancy of these engines is not limited in this regard, unlike those Conventional DC motors. The main problem that presents this type of motors is that they need an electronics That governs them. This type of engine can be a good option. when it comes to an engine with anti-pinch system, since the anti-pinching system requires the introduction of an electronics of control. Therefore, this type of engine is a good alternative to conventional engines that require anti-pinch In the case of brushless motors that are already governed by an electronics, the function of anti-pinching by replacing some components needed in electronics associated with a current motor continues with brushes, for others necessary for the function of anti-pinch in brushless motor control electronics, so that the set would be equated.

Now moving to the reduction mechanism itself said, in figure 1 it can be seen how said mechanism it comprises a first crown 2 that has an internal teeth 21, and which is part of a plate 12 that can be attached to the housing the motor.

Then there is the pinion 4 that is shaped ring with a double outer teeth (comprising a first external teeth 41 that meshes with the internal teeth 21 of the first crown 2, and a second outer tooth 42) and a hole axial inside which an eccentric part 3 is placed.

The second outer tooth 42 engages in a second crown 5, which constitutes the output gear. In this embodiment of the invention, this second crown comprises a cap with an internal teeth. The second outer teeth 42 of pinion 4 gear with said inner teeth of the second crown; East gear represents a second stage of reduction, while converts the eccentric movement of pinion 4 into rotation around  From the axis.

Eccentric piece 3 commented above goes supported on the motor output shaft 11 and is located in the inside the pinion 4. The eccentric part is responsible for transmitting the movement of the output shaft 11 from the motor to the pinion 4. The part eccentric can be part integrated with the output shaft 11 of the engine.

The operation of the device is basically the next:

When motor output shaft 11 gives a full turn, eccentric part 3 goes around in it direction (see corresponding arrow in figure 1). Pinion 4 it is driven by the eccentric part 3, and rolls around the tooth 21 of the first crown 2. When the eccentric part 3 has completed one turn, the tooth of the first teeth 41 of pinion 4 who was initially in contact with the tooth 21 of the first crown 2, as many teeth will be placed behind as the difference between the number of teeth of the teeth 21 of the first crown 2, and the number of teeth of the first outer teeth 41 of pinion 4. This it is because the pinion rolls in the opposite direction to axis 11 of motor output (see arrow in figure 1).

Since the two satellites (the first serrated exterior 41 and the second external tooth 42) are part of a same piece (the double pinion), both rotate counterclockwise motor output shaft 11, so the direction of rotation of the second crown 5 (the output gear) is the same as the shaft 11 motor output (see arrow in figure 1).

Figures 2-4 correspond to a second embodiment of the invention, which in addition to the elements illustrated in figure 1 (in this text and in the figures illustrating the different embodiments of the invention, same elements have the same numerical reference) presents a movement transmission mechanism associated with the second crown 5. In this case, the configuration of the second crown 5 allows the use of standard parts used in current engines window regulators; These pieces include:

- a damping element 6, also known as "damper", whose mission is to absorb energy in the blockages, making the blocks softer, reducing noise in this way (additionally, by this piece is able to reduce the efforts that occur in the jagged);

- a connecting piece 7; Y

- a movement transmission device 8, in this case it consists of a cable winding drum.

In figure 3 it can be seen as the second crown 5 comprises holes 53 for the connection piece 7, holes 54 for "damper" 6, a guide rail 52 and a jagged interior 51 (which is the one with which the second gear engages outer 42 of pinion 4).

Figures 5-7 reflect a third embodiment of the invention, in which the fixing piece, comprising the transmission device of 8A movement or drum (in this particular case) a configuration which allows its coupling to the second crown 5, with the interposition of "damper" 6. Figure 6 reflects schematic two views of the motion transmission device 8A, in one of which the pins 8A1 for the anchoring of device 8A in the second crown 5. These pins 8A1 pass through respective holes or notches in the damper 6.

Figures 8-11 correspond to a fourth embodiment of the invention, in which the "damper" and in which the second crown 5B has a portion serrated or striated "male" 5B1 that fits in one portion serrated or striated "female" 8B1 in the device 8B drum or motion transmission. This option allows you to use certain conventional cable winding drums, available in the market. Specifically, the "male" portion 5B1 corresponds to a configuration conventionally used for couple drums to motors in this type of applications. In the Figure 9, can be seen as the second crown 5B additionally  includes a 5B2 guide rail that fits with a guide rail located in the first crown 2, in order to center the second crown 5B with respect to axis 11. The drum 8B illustrated in the Figure 10 is a conventional drum, suitable for this embodiment of the invention.

Figures 12-14 reflect a fifth embodiment of the invention, in which the device of 8C drum or motion transmission and the second crown 5C form integral part of the same piece. Figure 13 illustrates schematically this piece: you can see how the piece includes the cable twisting rails 81 and holes 82 for fixing of the cable, as well as the support surface 55 for support in the first crown 2, and the internal teeth 51. This design allows reduce the number of pieces, since the second crown, the piece of union and the motion transmission device are part of only one piece.

Figure 15 schematically reflects the plate 12 with the first crown 2, of a type that may be suitable for the invention. The plate 12 has three fixing points 121, a hole 122 of the motor output shaft, and in the outer surface of the plate is set the first crown 2 with its teeth 21. In figures 4, 7, 11 and 14 it can be seen as the plate 12 is connected to the motor 1 by means of bushings 13 and bolts 14.

In an alternative embodiment, crown 2, in instead of materializing on plate 12, it can be an integral part of a protective cover of the engine or another part of a housing of the engine.

Figure 16 reflects the eccentric part 3, which it can be an integrated part of the motor output shaft 11, or be constituted by an independent piece. Figure 16 shows represents this piece as an independent piece, with a rail of guided 31 and a support surface 32 that will rest on a corresponding surface on motor output shaft 11.

Figure 17 reflects a pinion suitable for the invention, with its first 41 and second 42 external teeth.

Figure 18 reflects a mechanism of action 100 for a mobile element of a car (in this case, for a window 102), with a device 101 according to the invention operatively associated with the window (through wires 103 corresponding, which are rolled and unrolled on the drum 8 of the device 101), to move the window 102, mounted on the corresponding cars 104 that move on rails 105 (with the exception of device 101, the rest of the system Illustrated is conventional.

Figure 19 schematically illustrates the device of the invention applied to an actuation mechanism 200  for the solar window of a vehicle. As you can see, the solar window 202 is attached to cars 204 that move on lanes 205 and which are moved by a 203 tow system, as is conventional in the mechanisms of action of solar windows The tow system is operated by a device 201 according to the invention, in which instead of a drum 8 has a pinion 208 that acts on the system of tow.

In this text, the word "understand" and its variants (such as "understanding", etc.) should not be interpreted excluding, that is, they do not exclude the possibility that described include other elements, steps etc.

On the other hand, the invention is not limited to the specific embodiments that have been described but encompasses also, for example, the variants that can be made by the average expert in the field (for example, in terms of choice of materials, dimensions, components, configuration, etc.), within what follows from the claims.

Claims (18)

1. Motor device for applications car, for example, for windows, solar windows and / or seats, comprising: a motor (1) with an output shaft (11); a first crown (2) fixedly mounted with with respect to the output shaft (11) of the motor, said first having crown an internal teeth (21); a pinion (4) connected eccentrically and rotating with respect to the output shaft (11), said pinion having (4) a first outer teeth (41) that meshes in the teeth inside (21) of the first crown (2), so that when turning the output shaft (11), the pinion performs a rotating displacement rolling in an engaged manner on the inner teeth (21) of the first crown; characterized because the pinion also has a second teeth exterior (42), and because the device further comprises a second crown (5, 5B, 5C), rotatably mounted, presenting said second crown an internal teeth (51), being the pinion (4) and the second crown (5, 5B, 5C) coupled by a gear between the second gear exterior (42) of the pinion and the internal teeth (51) of the second crown (5, 5B, 5C), so that a turn of the pinion (4) rotates the second crown (5, 5B, 5C). 2. Device according to claim 1, characterized in that the motor (1) is a flat motor. Device according to any one of the preceding claims, characterized in that the second outer teeth (42) have a diameter smaller than the first outer teeth (41). Device according to any one of the preceding claims, characterized in that the second crown (5, 5B, 5C) is associated with a movement transmission device (8, 8A, 8B, 8C), to transmit a movement of the second crown to At least one element of a car. 5. Device according to claim 4, characterized in that the motion transmission device (8) is coupled to the second crown (5) through a connecting piece (7). 6. Device according to claim 4, characterized in that the motion transmission device (8A, 8B) is directly coupled to the second crown (5, 5B). Device according to any one of claims 5 and 6, characterized in that it comprises a damping element (6) interposed between the motion transmission device (8, 8A) and the second crown (5). 8. Device according to claim 4, characterized in that the motion transmission device (8C) and the second crown (5C) form an integral part of a single piece. 9. Device according to any of claims 4-8, characterized in that the motion transmission device (8, 8A, 8B, 8C) comprises a cable winding drum. Device according to any of the preceding claims, characterized in that the pinion is connected to the output shaft (11) of the motor (1) by means of an eccentric part (3) mounted in a hole in the pinion, so that the pinion can rotate around said eccentric piece. Device according to claim 10, characterized in that said eccentric part (3) extends substantially throughout the entire pinion thickness (4). 12. Device according to any of claims 10 and 11, characterized in that said eccentric part (3) forms an integral part of the output shaft (11) of the motor (1). 13. Device according to any of the preceding claims, characterized in that the first crown (2) forms an integral part of a part of a motor housing (1). 14. Device according to any of the preceding claims, characterized in that in the pinion (4), the first outer teeth (41) have teeth with a first thickness in the direction of the axis of rotation, and the second outer teeth (42) has teeth with a second thickness in the direction of the axis of rotation, said second thickness being substantially greater than said first thickness. 15. Actuation mechanism (100, 200) for a mobile element of a car, characterized in that it comprises a device (101, 201) according to any of the preceding claims, operatively associated with said mobile element of the car, for moving said mobile element. 16. Mechanism according to claim 15, characterized in that the mobile element is a part of a window regulator system (102, 103, 104, 105). 17. Mechanism according to claim 15, characterized in that the mobile element is a part of a solar window system (202, 203, 204, 2005). 18. Mechanism according to claim 15, characterized in that the movable element is a part of a seat.