EP1528207A1 - Sliding gate for uneven terrain - Google Patents

Abstract

The doorway has two wheels for its longitudinal displacement. A power drive unit (40) has a drive part (46) mounted on a vertical output shaft of a hydraulic motor (42) to cooperate with a drive chain (52) for transforming rotation movement of the unit (46) to a longitudinal translation movement. The unit (40) has a structure (60) hitched up with the doorway such that movement of doorway follows a vertical axis.

Description

The invention relates to a sliding gate.

A sliding sliding gate has the particularity of rolling, by the intermediate of rollers, sliding on a rail that is sealed in a massive civil engineering. The massif extends on a first length defining, when the gate is in the open position, a passage for persons and / or vehicles and on a second length, arranged in line with the first, and which defines a part called "repression" allowing to welcome the gate in open position.

The use of such a portal has several disadvantages.

Indeed, its use requires the completion of engineering works large and costly civil works to create a massive, mostly concrete or cement, wherein is sealed the aforementioned rail.

In addition, civil engineering works must be particularly treated, since the rail must be perfectly horizontal to allow the sliding of the gate in the latter.

This last aspect makes it particularly difficult and economically costly installation of a rolling sliding gate.

Moreover, vehicles using the passage, when the portal is in the open position, may, over time, damage the rail and therefore, to interfere with the proper functioning of the portal.

We know a sliding gate rolling according to the document FR-2 757 560 which provides an apparent rack arranged longitudinally along the gate, in its lower part called basement, and which cooperates with a geared motor unit whose output shaft is horizontal and perpendicular to the horizontal longitudinal axis of the rack.

In this configuration, the geared motor unit is positioned at side of the gate, on the ground.

In this arrangement, the motor as well as the rack are apparent, which affects the aesthetic appearance of the portal as a whole and offers little protection against vandalism.

We also know another type of gate, the sliding gate self-supporting, which requires less important civil engineering ground level than those required for gates.

It should be noted, however, that the massive amount of civil engineering to the realization of a self-supporting portal is relatively bulky because it is dimensioned according to the weight of the gate.

This type of gate does not require a concrete sill which obstacle to vehicles as they pass and, in the course of time, to deteriorate.

Usually, the training of this type of portal is the same as that of the aforementioned gates.

We know, however, a self-bearing sliding gate marketed by the company INOVA and in which a drive mechanism is integrated in the basement of the portal.

More particularly, the drive mechanism comprises a motorized group driving pebbles that cooperate with the inner surface a section solidary of the portal to slide it longitudinally to allow the opening or closing of the gate.

In this configuration, the motorized group is located at the level of gantry guide and drives pebbles whose horizontal axes are perpendicular to the longitudinal dimension of the profile.

For its operation, this portal requires, in the part called "repression", another set of pebbles, non-motorized, to guide the portal profile when opening or closing of the last.

The present invention aims to remedy at least one of disadvantages mentioned above by proposing a sliding gate which requires, for its operation, less civil works than for portals presented above.

• au moins deux organes de roulement adaptés l'un et/ou l'autre à coopérer avec le sol pour supporter le portail et permettre son déplacement longitudinal ;
• des moyens d'entraínement motorisés du portail comportant au moins un organe d'entraínement qui est apte à adopter un mouvement de rotation d'axe vertical et à coopérer avec un élément d'entraínement fixé au portail pour transformer le mouvement de rotation en un mouvement de translation longitudinal, lesdits moyens d'entraínement motorisés comportant au moins une partie attelée au portail, qui comprend ledit au moins un organe d'entraínement et qui est adaptée à se déplacer en translation suivant un axe vertical afin de suivre les déplacements verticaux du portail.

The invention thus relates to a sliding gate adapted to move in a horizontal longitudinal direction, characterized in that it comprises:

• at least two rolling members adapted one and / or the other to cooperate with the ground to support the gate and allow its longitudinal movement;
• motorized drive means of the gate comprising at least one drive member which is adapted to adopt a rotation movement of vertical axis and to cooperate with a drive element fixed to the gate to transform the rotational movement into a movement longitudinal translation, said motorized drive means comprising at least a portion coupled to the gate, which comprises said at least one drive member and which is adapted to move in translation along a vertical axis to follow the vertical movements of the gate .

Thus, by subjecting at least some of the means drive to the gate along a vertical axis, the latter can follow the vertical movements of the gate occurring when said gate slides / rolls on land that is not necessarily horizontal and sometimes obstacles. The invention thus makes it possible to slide / roll a gate in freeing themselves within certain limits of differences in the level of land on which the portal rolls.

It is thus understood that the invention makes it possible to save civil engineering compared to a rolling or self-supporting gate.

Moreover, the portal according to the invention also requires less civil engineering work as a self-supporting portal.

Thanks to the invention, the only civil engineering works to be carried out are those necessary for the installation of an abutment post and a concrete block for the guiding portico and which comprises inside said mass a location reserved for motorized training means.

Furthermore, by arranging the motorized training means to less partially below the portal, it makes them less visible from outside, which helps to improve the aesthetics of the gate.

By driving the gate from underneath, one can also conceal inside the gate the element of the training that cooperates with the drive member of the motorized drive means.

According to one characteristic, the motorized drive means include a motor.

According to another characteristic, the engine is buried, which allows reduce portal accessories visible from the outside and therefore improve the aesthetics of the latter.

According to one characteristic, the engine is hydraulic, which is has many advantages.

Indeed, a hydraulic motor has dimensions more reduced than an electric motor of equivalent characteristics and therefore lodge more easily under the gate.

A hydraulic motor is very enduring and its use does not pose sealing problem, which facilitates its housing in a buried box.

According to one characteristic, the rolling members are wheels, which has the advantage of allowing the longitudinal displacement of the gate on uneven ground, where simple pebbles would be unsuitable.

According to one characteristic, the wheels are equipped with tires which, preferably have on their outer surface patterns wheels to progress more easily in rough terrain.

According to one characteristic, the portal comprises at least one element support bearing that is adapted to support the portal and to participate in its longitudinal displacement when said gate rests on the ground in particular by via said at least one bearing rolling element.

This case may occur when the said at least two rolling members are in hollows on the ground or when one of these said at least two rolling members is no longer in contact with floor.

According to one characteristic, said at least one rolling element support has vertical dimensions smaller than those of minus two running gear.

According to one characteristic, the bearing rolling element is arranged near the motorized drive means.

According to another characteristic, the bearing rolling element is fixed to the ground and when the gate is properly slumped, the latter comes into bearing on said support bearing element.

According to one characteristic, the drive member is a shaft vertical bearing a drive pinion adapted to cooperate with the element longitudinal drive fixed to the gate.

According to one characteristic, the drive element is a chain.

By driving the gate from below, we can arrange the longitudinal drive element attached to the gate inside a room longitudinal solidarity of the gate, thus concealing the drive element longitudinal.

According to one embodiment, the motor is arranged in the alignment of the vertical drive shaft, under the latter. This configuration is particularly well adapted to the buried engine.

According to one characteristic, the motorized drive means are hitched to the gate and are adapted to move vertically with this latest.

According to one characteristic, the portal comprises means for vertical guidance of motorized drive means.

By thus providing specific elements for sliding of the engine, the body of the motorized drive means will be only required by its rotational movement, which reduces its wear compared to a configuration in which the organ is solicited both in rotation and vertical sliding.

According to one characteristic, the motor being housed in a box buried, the vertical guide means comprise several mounted rollers free in rotation and which rest on the walls of the box.

More particularly, at least some of the rollers are adjustable in position to adapt to the dimensions of the box.

According to one characteristic, the motorized drive means are equipped with a coupling structure which is coupled to the gate and which comprises at least one rolling element bearing on the gate.

In this configuration, it is particularly interesting to provide an engine that is as light as possible so as not to solicit way exaggerated the supports of the hitch structure on the portal.

According to one feature, the hitch structure comprises a means guiding the longitudinal drive element of the gate in its longitudinal movement.

This ensures the effectiveness of cooperation between the drive member of the motorized drive means and the element longitudinal drive fixed to the gate regardless of the movements of the portal.

According to one characteristic, the portal comprises means for guiding longitudinal translation of the portal which are spaced apart longitudinally.

According to one characteristic, the lower part of the gate comprises a profile housing the drive element attached to the gate and which is open in its lower part to receive the body of training means motorized training.

According to a second embodiment, the vertical shaft is grooved and comprises two parts mounted sliding relative to one another, a first part carrying the drive pinion and which is adapted to move vertically relative to a second part in order to follow the vertical movements of the gate.

In this configuration, the additional weight to be borne by the portal is reduced compared to the configuration in which all Motorized drive means are hitched to the gate.

According to one characteristic, the motor is arranged vertically and the motorized drive means comprise a drive member additional horizontal which cooperates with the second part of the splined shaft.

According to a variant, the engine is arranged under the second part of the splined shaft to reduce the external dimensions of the gate and the number accessories visible from the outside.

• les figures 1 et 2 sont des vues générales d'un portail selon l'invention dans des positions respectives de fermeture et d'ouverture du portail ;
• la figure 3 est une vue schématique générale transversale du portail selon l'invention ;
• la figure 4 est une vue partielle en coupe transversale de la partie inférieure du portail selon l'invention ;
• la figure 5 est une vue partielle en coupe longitudinale du portail des figures 1 et 2 dans sa partie inférieure ;
• la figure 6 est une vue partielle de dessus du portail de la figure 5 ;
• la figure 7a est une vue en perspective de la structure d'attelage 60 des moyens d'entraínement motorisés du portail ;
• la figure 7b est une vue partielle en coupe longitudinale d'un organe de roulement selon l'invention ;
• les figures 7c et 7d sont des vues respectives partielles en coupe longitudinale et transversale d'une variante des moyens de guidage des moyens d'entraínement motorisés ;
• la figure 7e est une vue en perspective de dessous montrant l'implantation des moyens de guidage des figures 7c et 7d ;
• les figures 8 à 12 illustrent les mouvements successifs horizontaux et verticaux du portail lors de l'ouverture de ce dernier sur un terrain accidenté ;
• les figures 13 et 14 sont des vues schématiques du mécanisme d'adaptation du portail selon l'invention aux forts dénivelés de terrain ;
• la figure 15 est une vue schématique partielle en coupe longitudinale d'un deuxième mode de réalisation d'un portail selon l'invention ;
• la figure 16 est une vue schématique partielle en coupe transversale des moyens d'entraínement du portail de la figure 15 ;
• les figures 17 et 18 illustrent des éléments de structure apparents sur la figure 15 et nécessaires à l'installation et la mise en oeuvre des moyens d'entraínement de ce deuxième mode de réalisation.

Other features and advantages will become apparent from the following description, given by way of nonlimiting example and with reference to the accompanying drawings, in which:

• Figures 1 and 2 are general views of a gate according to the invention in respective positions of closing and opening of the gate;
• Figure 3 is a general schematic transverse view of the gate according to the invention;
• Figure 4 is a partial cross-sectional view of the lower portion of the gate according to the invention;
• Figure 5 is a partial longitudinal sectional view of the gate of Figures 1 and 2 in its lower part;
• Figure 6 is a partial top view of the gate of Figure 5;
• Figure 7a is a perspective view of the coupling structure 60 motorized drive means of the gate;
• Figure 7b is a partial view in longitudinal section of a rolling member according to the invention;
• Figures 7c and 7d are respective partial views in longitudinal and transverse section of a variant of the guide means of the motorized drive means;
• Figure 7e is a perspective view from below showing the implantation of the guiding means of Figures 7c and 7d;
• Figures 8 to 12 illustrate the successive horizontal and vertical movements of the gate during the opening of the latter on uneven ground;
• Figures 13 and 14 are schematic views of the adaptation mechanism of the gate according to the invention to strong uneven terrain;
• FIG. 15 is a partial schematic view in longitudinal section of a second embodiment of a gate according to the invention;
• Figure 16 is a partial schematic cross sectional view of the drive means of the gate of Figure 15;
• Figures 17 and 18 illustrate structural elements apparent in Figure 15 and necessary for the installation and implementation of the drive means of this second embodiment.

As shown in Figures 1 and 2 and designated by reference general 10, a gate according to the invention comprises an upper portion 12 may be perforated or full and constituting the major part of the portal and a lower part called basement 14 on which is mounted the part superior 12.

In the example, the upper part has bars vertically spaced and parallel to each other.

The gate 10 is mounted on rolling members 16 and 18 arranged in the base 14 to serve as a support for the gate and allow its longitudinal displacement along the horizontal axis X.

The gate slides inside a vertical guide frame 20 which defines with a remote pole 22 a longitudinal space 24 defining the passage for pedestrians and / or vehicles.

The gate is equipped with a feeler blade 26 which is an organ of security to detect the contact of an object and / or a person and to stop the longitudinal movement of the gate when such detection occurs.

FIG. 2 shows the gate in the open position releasing and passage 24 for the entry or exit of persons and / or vehicles.

As shown in this position, one of the wheels 18 of the gate is no longer in contact with the ground given the rugged terrain of the land on which the gate rolls, the other wheel 16 remaining, in turn, in contact with the ground.

So we see that in this position, the portal has moved vertically along the transverse axis Y due to the collapse of the shaft 18 in the hollow 28 opposite and that, despite everything, the portal remains in a position allowing it to continue rolling along the longitudinal axis X.

It is shown very schematically in Figure 3 in section transverse, the gate 10 inside the guide frame 20.

This portico comprises two vertical compartments 30 and 32 connected at their apex by a horizontal plate 34, the compartment 30 being intended for accommodating portal control accessory items such as a keypad code, an intercom, a screen, a camera ..., the compartment 32 being, as to him, intended to enclose an electrical unit 36 which contains the organs control electronics of the gate, as well as a hydraulic unit 38.

The hydraulic unit 38 comprises in a manner not represented a hydraulic tank, a pump and an electric motor for the operation of the pump which drives a hydraulic motor.

As shown in FIG. 4, the gate according to the invention comprises motorized drive means 40 which comprise the motor hydraulic 42 which is connected to the hydraulic unit 38 by through fittings 44.

In FIGS. 4 and 5, the drive means 40 comprise a drive member 46 mounted on the vertical output shaft of the motor 42 and which constitutes a vertical shaft 48 carrying a drive pinion 50 adapted to cooperate with a longitudinal drive element 52 fixed to the portal as than a chain.

As shown in FIGS. 3 and 4, the base 14 of the portal comprises a profile in the general shape of an inverted U with branches are folded each at their free end so as to form returns horizontal 14a and 14b which provide between them a slot opening longitudinal 54 for receiving the drive member 46.

The drive chain 52 is fixed to the gate at each of its ends by a fastener 56 shown in Figures 5, 13, 14 and 15.

More particularly, each end of the chain is connected to a threaded rod bolted to a welded bracket at each end of the portal. The threaded rod is used to adjust the tension of the chain.

The motor 42 is housed in a box 58 buried and open at its upper part (Figures 4 and 5).

The drive member 46 cooperates with the chain 52 by meshing in order to transform the rotational motion of the latter into a longitudinal translation movement, thus allowing the portal to move longitudinally.

As shown in FIGS. 4 and 5, the drive means motorized vehicles comprise at least one part which is coupled to the gate in order to move along the vertical axis Y when the portal is itself subjected to vertical amplitude movements as explained with reference to Figures 1 and 2.

More particularly, all the means of training motorized are hitched to the gate and adapted to move vertically with this last.

To do this, the motorized drive means 40 are equipped with a hitch structure 60 which is coupled to the gate.

As shown in FIG. 7a, the hitch structure 60 comprises a vertical upright 62 against which is fixed a slide 64 serving guide means to the chain 52 during its cooperation with the organ 46.

The structure 60 is thus coupled to the chain 52.

The slide 64 also rests on two parallel supports horizontally extending horizontally from the vertical upright 62 and at the opposite end to that attached to the amount 62, a vertical extension downward and noted respectively 70, 72.

Each of the vertical extensions 70, 72 is arranged opposite of a portion of the upright 62 and each of these elements is perforated so as to be adapted to support a rolling element such that a roller 74, 76, 78 (the fourth roller is not represented on the figures).

Each of these rolling elements bears on one or the other of the returns 14a, 14b of the profile to ensure the vertical translation of the means of training 40 which, as we shall see, are in solidarity with the hitch structure 60.

This makes it possible to adapt the gate to the slopes.

It will be noted that the weight of the motorized drive means 40 allows to go down in case of hollow.

The structure 60 is therefore also coupled to the profile 14 by through these rolling elements.

The hitch structure 60 also comprises two uprights vertical lines 80, 82 which respectively extend from a lateral edge of the two horizontal supports 66 and 68, in the middle part thereof.

The structure also includes a square element 84 (this element could also be cylindrical) forming a cage, mounted coaxially around the drive member 46 and the output of the motor 42 and which is fixed to the structure by each of the uprights 80 and 82.

The cage 84 is fixed on a plate 86 on which is also mounted the motor 42.

The cage 84 is provided with two guide bearings 88 and 90 which slide on two respective guide rods 92 and 94, each mounted by a lower end on the inner wall of the box 58 and by a upper end on an element 96, 98 forming a stem.

It will be noted that a longitudinal fixing plate 100 is fixed on the between the two compartments 30 and 32 of the gantry 20 (FIG. box 58 and the opening in the latter (Figures 4 and 5).

The elements 96 and 98 forming a stem are positioned perpendicularly to the mounting plate 100 as shown in FIG. 5.

Thus, the motorized drive means 40 are coupled to the profile 14 through the structure 60 to which they are attached and are supported by rolling elements 74, 76, 78.

In addition, the motorized drive means are suitable for slide vertically when the gate itself moves vertically in because of the aforementioned coupling 60. This vertical sliding movement is guided laterally by the specific guide means 88, 90 sliding respectively on rods 92 and 94.

The portal also comprises guiding means longitudinal translation of the portal which are spaced longitudinally under the portal.

These guide means 102, 104 are in the form of two cylindrical rollers of vertical axes which are positioned by one of their ends on the mounting plate 100 and, by their opposite end, are engaged inside the opening 54 of the profile 14 so as to cooperate, when of the drive in longitudinal translation of the gate, with the edges in view of the profile which delimit the opening 54, to guide said profile in its longitudinal translation movement.

The guide means 102 and 104 are called guide means lower and upper guide means 106 and 108 are also provided at the top of the gate as shown in Figure 3, respectively between the compartment 30 and the upper part 12 of the portal, as well as between compartment 32 and this same upper part of portal.

These upper guide means are also under the cylindrical rollers of vertical axes.

The gate also has in its lower part a crossbar 110 longitudinal hollow located above the chain inside the profile 14, in order to house the electric cables for feeding the different electrical components of the gate and in particular the feeler blade 26 Figures 1 and 2.

Note in particular the presence of a vertical connecting piece 112 connecting the mounting plate 100 to the longitudinal cross member 110 in order to allow the passage of a power cable 114 partially shown to FIG. 5, which comes from the electronic control elements of the vertical compartment 32.

At least one member or rolling member 116 serving as support at the gate (Figures 5 and 6) is rotatably mounted about a horizontal axis on the mounting plate 100 and is in the form of a cylindrical roller.

Note that this bearing bearing element 116 is arranged in proximity of the motorized drive means and the guide frame 20, preferably between the rollers 102 and 104 to avoid impeding the wheels.

The rolling element 116 must have a central position in order to minimize the overhang.

However, the bearing rolling element (s) could be between the rollers and the wheels provided that they have a space sufficient.

As shown in FIGS. 5 and 6, the rolling element 116 has, for example, vertical dimensions smaller than those of the wheels 16 and 18 to serve as support for the gate, in particular the profile 14 of the latter, when one of the wheels is no longer in contact with the ground as shown in Figure 2.

It will be noted that the diameter of the bearing rolling element 116 is much smaller than the diameter of the wheel 16 in FIG.

However, it is conceivable to provide one or more elements of bearing of vertical dimensions greater than or equal to those of the wheels.

In this case, the rolling element or elements are, for example, partially buried.

In the configuration shown in FIGS. 5 and 6, the element of bearing bearing arranged between the guide means 102 and 104 is fixed at so as not to hinder the longitudinal movement of the gate.

As shown in FIG. 2 and in FIGS. described below, the gate comes in partial support on the rolling element 116 when the portal sagged vertically due to the fact that one of its wheels are no longer in contact with the ground or are in contact with the bottom of a hollow.

Figure 7b schematically illustrates a partial view transversal portal 10 showing the installation of a wheel, for example the wheel 16, inside the profile 14.

The wheel 16, like the wheel 18, is mounted free to rotate on a spacer 120 which is fixed at each of its opposite ends to perpendicular plates 122, 124, these plates being embedded in a enlarged opening 126 located in the lower part of the section 14.

The wheels used are full and are each under the shape of a solid tire that is mounted on a metal rim.

For example, we use a wheel marketed by the company Hervieu under the commercial reference 62-040-250T50.

FIGS. 7c, 7d and 7e represent an alternative embodiment of means for vertical guidance of the gate according to the invention.

Only modified elements compared to previous figures new references and will be described below.

As shown in FIG. 7c, the hitch structure 61 which allows the coupling of the motorized drive means to the gate comprises two vertical uprights 81 and 83 longer than the amounts 80 and 82 of the 5 to reach the plate 87 to which they are attached and the cage 84 and the motor 42.

Moreover, the motor 42 moves inside the buried box 58 during vertical amplitude movements of the portal and means 40 drive there harnessed.

A set of several rollers, for example seven rollers, mounted free in rotation around horizontal axes are carried by the plate 87 and are fixed on the lower face 87a thereof as shown in the Figures 7c, 7d and 7e.

Note that a lower or higher number of pebbles may also be used.

We distinguish a front roller 89, two rear rollers 91 and 93 and four side rollers mounted in pairs 95, 97 and 99, 101 one above the other, a couple being placed on each side.

The rollers are thus positioned so as to bear on the inner walls of the box 58 and roll on them during a movement vertical translation of motorized drive means.

The two pairs of rollers 95, 97 and 99, 101 have a position longitudinal, which is adjustable so that it can be adapted to caisson more or less apart.

To do this, each pair of rollers is mounted on a threaded rod horizontal 103, 105 (Figure 7e) which fits into a housing 107 provided with a port 109 through which a tool can be engaged to rotate the rods in one way or the other in order to adapt the position of the pairs of pebbles to box dimensions 58.

FIGS. 8 to 12 show diagrammatically successive positions of the gate 10 according to the invention when it moves longitudinally along the X axis from a closed position (FIG. 8) to a position open (Figure 12) on uneven ground. In this field, we realized civil engineering works necessary for the sole implantation of the portico of guidance (not shown in FIGS. 8 to 12 for the sake of clarity) and buried housing for the installation of the motorized drive means, as well as than abutment post 22 (FIGS. 1 and 2).

The gate shown in FIGS. 8 to 12 is identical to the gate Figures 1 and 2.

In the closed position (Figure 8), the gate rests on the ground by through its two wheels 16 and 18, the rolling element serving 116 not being in contact with the gate.

In Figure 9, the wheel 18 is still in contact with the ground while the wheel 16 is no longer in contact with the ground, which allows the element of bearing 116 to contact the base 14 of the portal so to provide support to the latter and allow him to continue his longitudinal.

Note that in Figure 9, the gate has sagged along the axis vertical Y in addition to the longitudinal movement, which allowed the portal to enter in contact with the bearing rolling element 116.

In the following figure 10, the portal continues its progression following the longitudinal axis X while moving vertically along the Y axis but the two wheels 16 and 18 remain in contact with the ground and the support 116 is not sought.

It is possible, however, that on some uneven height of the bumps and / or hollows of the ground so that the two wheels 16 and 18 remain in contact with the ground and that the vertical movement of the gate is such that the latter nevertheless comes to bear on the rolling element 116.

In Figure 11, the gate continues its movement of displacement along the X axis and the wheels 16 and 18 remain in contact with the ground during the progression of the latter, the support bearing element 116 not being still not solicited.

Finally, in FIG. 12, the wheel 16 is in contact with the ground while that the wheel 18 is opposite a cavity 28, which has caused the collapse of the portal along the vertical axis Y. The portal is then found in bearing element 116, which allows it in this position of stay in the open position, while being able to move longitudinally in the opposite direction to return to the closed position of the figure 8.

It should be noted that the tires of the wheels 16 and 18 are not smooth and have a relief closed by circumferential grooves which allow to progress in rough terrain without slipping.

Figures 13 and 14 illustrate schematically and voluntarily exaggerated the vertical amplitude movements to which is subjected the gate during a longitudinal displacement in rough terrain in the positions illustrated above in FIGS. 9 and 12.

Indeed, in these positions, the downward vertical movement of the portal is of sufficient amplitude to allow the profile 14 to come into bearing on the bearing rolling element 116.

It will be noted that in the positions illustrated in FIGS. 13 and 14, the portal is not horizontal and is inclined sometimes on one side of element 116 sometimes on the other side of this element.

FIGS. 13 and 14 show that when the gate is inclined towards the rear side of the wheel 18, the front wheel 16 no longer in contact with the ground, then the portion of the gate between the bearing and bearing element 116 and the wheel that remains in contact with the ground has sagged vertically. The motorized drive means 40 with their hitching structure 60, by intermediate rolling elements in contact with the profile, follow this downward movement and penetrate further inside the dwelling buried (box 58).

It should be noted that the cooperation between the training body 46 and the channel 52 is not affected by this amplitude-disrupting motion vertically to the extent that the hitch structure 60 includes a means of guide 64 of the chain in its part where it cooperates with the organ 46.

It will also be noted that the anchoring points of the chain 52 on the portal at the opposite ends of it may move vertically and thus adapt to vertical stresses without this harming the good operation of the portal.

In FIG. 14, it will be noted that the part of the portal situated between the bearing rolling element 116 and the wheel 18 which is no longer in contact with the ground has risen, thereby leading through the structure of the hitch 60 and in particular rolling elements in contact with the section 14, the lifting of the drive means 40.

Here too, the articulation of the chain 52 at its ends makes it possible to adapt to this type of vertical movement.

It will be noted that the gate according to the invention is able to ride on terrain with steep grades and, for example, on cause during the longitudinal displacement of the gate, a displacement the latter of an amplitude of the order of 15 centimeters but which, of course, varies according to the size of the wheels and the profile 14.

It should be noted that during a vertical movement of the gate, the motorized drive means hitched to the gate follow this movement, but the bearing and bearing element 116 is not systematically sought.

We will now describe with reference to Figures 15 to 18 a second embodiment of the invention.

Gate 200 is partially shown in FIGS. 15 and 16 has at its lower part a profile 202, generally U-shaped returned and whose free ends 202a and 202b of the branches are folded back to form a return and to provide a longitudinal slot between them 204 intended to receive the motorized drive means of the gate.

The portal comprises a longitudinal drive member such a chain 206 fixed at each of its opposite ends by an element anchor 208 is provided with two wheels fixed to the profile and one of which only 210 is shown in Figure 15.

FIG. 17 represents a frame comprising a platinum of fastener 212 in two parts 212a and 212b on which is fixed a structure consisting of a horizontal longitudinal crossbar 214 connected to its two opposite ends to two vertical uprights 216, 218 each provided with two plates pierced opposite one another and arranged vertically for mounting two vertical guide means 220 and 222 illustrated on 15 and which cooperate with the edges of the section delimiting the slot 204 (Figure 16).

It should be noted that such a structure also exists in the mode of embodiment of Figures 1 to 7b with however some adjustments.

The longitudinal cross member 214 is furthermore supported close to its central part by two vertical pillars 224, 226 forming between them a space 228 for receiving a portion of the drive means as described below.

The horizontal cross 214 is pierced in its middle part arranged between the two pillars 224 and 226 and comprises two plates, one upper plate 230 and a bottom plate 232 arranged on the side and other of it and also pierced, the bottom plate 232 serving spacer between the vertical pillars 224 and 226.

A hole 270 is thus formed through the cross member 214 and the two plates 230 and 232 for receiving and guiding part of the means drive.

The plates 230 and 232 serve to reinforce the guidance.

As shown in FIG. 18, an anchor structure comprises a base 240 comprising in its central part a recess to allow the arrangement of a drawer 242 arranged perpendicularly by relative to the longitudinal dimension of the base 240.

The drawer 242 has a bottom 244, side walls 246 and 248 and end walls 250 and 252 which provide an oriented opening 254 to the top.

The structure shown in FIG. 18 also includes a plurality of metal rods 256 serving as anchor in a structure concrete 258 shown in FIG.

These anchor rods are also present in the embodiment of Figures 1 to 7b although they are not shown.

Apart from these civil engineering works carried out at the portico of guide the gate according to the invention and to the right of the stop post (as for all portals), no further civil works are planned for the installation of the portal.

As shown in FIGS. 15 and 16, the drive member is a vertical shaft 260 carrying a drive pinion 262 which cooperates with the chain 206.

The vertical shaft is fluted and has two mounted parts sliding relative to each other, the first part visible in FIG. 15 being the part that carries the drive pinion.

A means for guiding the longitudinal drive element 206 is provided in the form of a slide 264 of cross-section in the form of C and which is mounted on a mounting plate 266, itself mounted free in rotation about the first portion 260 of the splined shaft.

The first part of the fluted shaft 260 passes through the hole 270 arranged in the longitudinal cross member 214 and the plates 230 and 232 (FIG. 17) and opens into the space 228 above.

The second part of the splined shaft is made in two parts 272, 274 forming a sleeve around the first portion 260 and including not visible, on their inner periphery internal grooves which allow to cooperate with the visible grooves on the surface external part of the first part of the splined shaft.

The sleeve is made in two parts to allow assembly of the first portion 260 of the spline shaft within this sleeve.

The motorized drive means also comprise the lower end of the sleeve a drive pinion 278 mounted on the sleeve so as to follow the rotational movement of the latter.

A guide bearing 276 is provided between the pinion and the portion 274.

The assembly consisting of pinion 278 and bearing 276 are housed at inside the drawer 242 shown in FIGS. 15 and 18.

The sleeve consisting of the parts 272, 274, the pinion 278 and the bearing 276 are likely to be rotated but do not move not vertically, only the first part of the splined shaft 260 being indeed able to slide vertically inside the sleeve when the portal undergoes vertical movements similar to those shown on the Figures 1, 2 and 8 to 14.

In a manner not shown, another longitudinal element for rotating the sleeve in two parts and the pinion 278 is housed horizontally inside the drawer 242 (FIG. 18) to cooperate at one of its ends with the drive pinion 278.

At its opposite end, the longitudinal drive element which is for example a chain, or a belt, cooperates with the output shaft vertical of a motor, for example, hydraulic, arranged above the drawer.

Note that in this arrangement, the engine can be arranged to inside one of the compartments constituting the guiding portico in order to do not harm the aesthetics of the portal.

An integrated set also makes it possible to resist acts vandalism as for the portal of Figures 1 to 7c.

Depending on the space left for the installation of the engine, can choose to take an electric or hydraulic motor.

It will be noted that the arrangement which has just been described thus makes it possible to part of the motorized drive means to move vertically compared to the rest of the means of training to follow the movements vertical of the gate and thus allow its longitudinal displacement in terrain rugged.

It will be noted that, according to a variant, the motor can be arranged in the extension of the sleeve in two parts 272, 274 and drive it directly rotating through its vertical output shaft.

In this variant, the drawer 242 is replaced by a vertical box buried deeper than drawer 242.

Pinion 278 and guide bearing 276 are not necessary in this variant.

So that the portal can follow the unevenness of a ground accident, it may be interesting to embark on the basement of the gate, at least one engine which is in direct contact with one of the wheels of the portal to constitute a motorized wheel gate.

This arrangement would preserve the aesthetic character of the by minimizing external accessories to the latter, as well as than civil engineering works.

Claims (23)

Sliding gate adapted to move in a horizontal longitudinal direction, characterized in that it comprises: at least two rolling members (16, 18) adapted to one and / or the other to cooperate with the ground to support the gate and allow its longitudinal movement; motorized drive means (40) of the gate comprising at least one drive member (46) which is adapted to adopt a rotation movement of vertical axis and to cooperate with a drive element (52) fixed to the gate to transform the rotational movement into a longitudinal translation movement, said motorized drive means comprising at least a portion coupled to the gate, which comprises said at least one drive member and which is adapted to move in translation along an axis vertical to follow the vertical movements of the gate. Gate according to claim 1, characterized in that the motorized drive means comprise a motor (42). Gate according to claim 1 or 2, characterized in that the motor is buried in the ground. Gate according to claim 2 or 3, characterized in that the motor is hydraulic. Gate according to one of claims 1 to 4, characterized in that the rolling members are wheels. Gate according to one of claims 1 to 5, characterized in that it comprises at least one bearing rolling element (116) which is adapted to support the gate and to participate in its longitudinal displacement when said gate rests on the particularly by means of said at least one bearing rolling element. Gate according to claim 6, characterized in that said at least one bearing rolling member has vertical dimensions smaller than those of said at least two rolling members. Gate according to claim 6 or 7, characterized in that the bearing bearing element is arranged near the motorized drive means. Gate according to one of claims 6 to 8, characterized in that the bearing bearing element is fixed to the ground. Gate according to one of claims 1 to 9, characterized in that the drive member is a vertical shaft carrying a drive pinion adapted to cooperate with the longitudinal drive member fixed to the gate. Gate according to one of claims 1 to 10, characterized in that the drive element is a chain. Gate according to claims 2 and 10, characterized in that the motor is arranged in alignment with the vertical drive shaft, under the latter. Gate according to one of claims 1 to 12, characterized in that the motorized drive means are coupled to the gate and are adapted to move vertically with the gate. Gate according to one of claims 1 to 13, characterized in that it comprises vertical guide means motorized drive means. Gate according to claims 3 and 14, characterized in that , the motor being housed in a buried box, the vertical guide means comprise a plurality of rollers mounted free in rotation and which bear against the walls of the box. Gate according to claim 15, characterized in that at least some of the rollers are adjustable in position in order to adapt to the dimensions of the box. Gate according to one of claims 13 to 16, characterized in that the motorized drive means are equipped with a coupling structure which is coupled to the gate and which comprises at least one rolling element bearing on the gate . Gate according to claim 17, characterized in that the coupling structure comprises means for guiding the longitudinal drive member of the gate in its longitudinal movement. Gate according to one of claims 1 to 18, characterized in that it comprises longitudinal guide means for longitudinal translation of the gate which are spaced longitudinally. Gate according to one of claims 1 to 19, characterized in that the lower portion of the gate comprises a profile housing the drive element attached to the gate and which is open in its lower part to receive the drive member of the motorized drive means. Gate according to claim 10, characterized in that the vertical shaft is grooved and comprises two parts mounted sliding relative to each other, a first portion carrying the drive gear and which is adapted to move vertically by report to a second party to follow the vertical movements of the portal. Gate according to claims 2 and 21, characterized in that the motor is arranged vertically and the motorized drive means comprise an additional horizontal drive member which cooperates with the second part of the shaft. Gate according to claims 2 and 21, characterized in that the motor is arranged under the second part of the shaft.

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