EP3656956A1 - Carriage for a sliding door leaf, sliding door leaf and door leaf assembly comprising such a carriage - Google Patents

Abstract

The invention relates to a carriage (1) for a sliding leaf comprising: - a rigid body (2); - at least one roller (3,4) mounted to rotate relative to the rigid body (2); characterized in that each roller ( 3,4) is guided in rotation by and between two bearings (5, 7) mounted integral with the rigid body (2).

Description

The present invention relates to a compact trolley, in particular of low height, for a sliding leaf. The invention relates to such a carriage for any type of sliding opening.

• l'expression « ensemble ouvrant » désigne l'association d'un ouvrant coulissant et d'un dormant comprenant un rail de roulage de l'ouvrant coulissant sur le dormant ;
• de manière générale et sauf indication contraire, on considère l'ensemble ouvrant et les éléments constitutifs de cet ensemble ouvrant dans la position verticale de cet ensemble ouvrant, dans laquelle il exerce sa fonction d'ensemble ouvrant ;
• le terme « longitudinal(e) » et les expressions « direction longitudinale », « dimension longitudinale » et « déplacement longitudinal » désignent et qualifient la direction de déplacement en coulissement du chariot pour ouvrant coulissant et de l'ouvrant coulissant par rapport au dormant ;
• les termes « transversal(e) » et « transversalement » et les expressions associées, notamment « dimension transversale » désignent et qualifient une direction horizontale et orthogonale à la direction longitudinale.

Throughout the text:

• the expression “opening assembly” designates the association of a sliding opening and a frame comprising a running rail of the sliding opening on the frame;
• generally and unless otherwise indicated, the opening assembly and the constituent elements of this opening assembly are considered in the vertical position of this opening assembly, in which it exercises its opening assembly function;
• the term “longitudinal” and the expressions “longitudinal direction”, “longitudinal dimension” and “longitudinal displacement” designate and qualify the direction of sliding movement of the carriage for sliding leaf and of the sliding leaf with respect to the frame;
• the terms "transverse" and "transversely" and the associated expressions, in particular "transverse dimension" designate and qualify a horizontal direction and orthogonal to the longitudinal direction.

The invention relates to a carriage for a sliding window - such as a sliding window for a sliding door - interior or exterior -, sliding window or sliding window door - of any size. It may be a sliding opening of an opening assembly comprising a single sliding opening or an opening assembly comprising a plurality of sliding opening. It can advantageously be a sliding opening comprising a glazing. However, the invention applies to any sliding opening, in particular to a non-glazed sliding opening.

We know ( EP1116843 ) a sliding sash trolley adapted to be placed in a lower horizontal cross member of the sash of a sash sliding and to guide the sliding sash in movement relative to the rail of a frame. Such a carriage comprises a rigid metal body, a roller having an axial passage and rotatably mounted relative to the rigid metal body on a support shaft secured to the rigid metal body passing through the axial passage. The diameter of the roller is chosen to be large enough to allow optimal rolling and facilitate the movement of the sliding leaf. Such a carriage comprises a bearing for rotation of the roller relative to the support shaft, interposed between the roller and the support shaft. This carriage requires that the roller be held laterally by the longitudinal walls of the rigid metallic body so as to make the rigid metallic body bear the mechanical stresses exerted laterally by the sliding leaf on the roller. Consequently, to allow such maintenance, the rigid metallic body necessarily has a height at least equal to the height of the roller.

Furthermore, it is neither possible nor desirable to reduce the height of the roller and the thickness of the tire without affecting the proper functioning of the carriage, in particular its rolling quality. This is all the more so since such a reduction would lead to deformation - or even to cutting - of the tire and the roller under the weight of the sliding leaf.

However, the height of the carriage receiving housing in the cross member is imposed by the height of the carriage which is itself imposed by the height of the rigid metallic body and by the height - in particular by the diameter - of the roller and the shaft. support. Consequently, the carriage receiving housing and the lower cross member of the chassis have a height which is necessarily greater than the height of the rigid metallic body and which cannot be reduced given the height of the roller.

The cart EP1116843 does not make it possible to reduce the height of the lower horizontal cross member - or even of the upper horizontal cross member of the frame - of a sliding sash frame.

The invention aims to propose a carriage for a sliding sash allowing, with equivalent mechanical properties, in particular mechanical strength, a reduction in the height of the lower cross-member and, if necessary, of the upper cross-member of the sliding sash frame. .

The invention aims more particularly to propose such a carriage making it possible to adapt, in particular to increase, the glazed surface of a glazed sliding opening.

The invention also aims to propose such a carriage making it possible to increase the ratio of the glazed surface to the non-glazed surface of a sliding glazed opening.

The invention also aims to propose such a cart making it possible to reduce the non-glazed surface of a sliding leaf in favor of its glazed surface.

The invention aims to propose such a carriage making it possible to minimize the thermal bridges between the internal face and the external face of the frame of the sliding leaf.

The invention aims to provide a carriage for a sliding leaf having a reduced ratio of the height of the carriage to the mass of the sliding leaf.

The invention also aims to provide such a carriage capable of supporting a weight per roller greater than 40 kg, in particular greater than 50 kg.

The invention aims in particular to propose such a carriage having at most two rollers and capable of supporting a sliding opening of mass up to 300 Kg - in particular up to 260 Kg -.

The invention also aims to provide such a trolley adapted to be able to be placed in an economical sliding sash frame, formed from a mass of reduced raw material, especially aluminum.

The invention also aims to propose a carriage for a sliding door opening which overcomes the drawbacks of carts for a sliding door opening with bandage rollers and a central rolling bearing.

The invention aims in particular to propose such a carriage which remains efficient in terms of running quality for an increased period of use.

In particular, the invention aims to propose such a carriage presenting no risk of separation of the contact surface of each roller with the running rail.

The invention also aims to provide a sliding door trolley which is resistant to cutting by the running rail.

• un corps rigide ;
• au moins un galet monté rotatif par rapport au corps rigide ;

caractérisé en ce que chaque galet est guidé en rotation par et entre deux paliers montés solidaires du corps rigide.To do this, the invention relates to a carriage for a sliding leaf comprising:

• a rigid body;
• at least one roller mounted to rotate relative to the rigid body;

characterized in that each roller is guided in rotation by and between two bearings mounted integral with the rigid body.

The inventors have determined that a sliding door trolley according to the invention has a reduced height compared to the trolleys of the prior art and that it is suitable for being able to be placed in a lower cross member of a chassis. sliding opening, said cross member being itself of reduced height. Such a crosspiece of reduced height makes it possible to reduce the main surface area (not glazed) of the frame and to increase the glazed surface area of the sliding leaf. The use of a carriage for a sliding leaf according to the invention makes it possible to increase the glazed surface of a glazed sliding leaf comprising such a carriage and to increase the light flux and the heat flux passing through this glazed sliding leaf, in particular during sunny periods.

In addition, despite the reduction in its height, a sliding sash trolley according to the invention can support and allow rolling of a sliding sash of high mass on the rail of a frame, without breaking or appreciable degradation of the trolley. A sliding sash trolley according to the invention can support a sliding sash whose mass per roller can reach of the order of 65 Kg (for example a sliding sash of the order of 260 Kg comprising two trolleys and four rollers in total) . By way of comparison, a carriage of the state of the art can at best support a sliding leaf whose mass per roller does not generally exceed 50 kg. A carriage for sliding leaf according to the invention, although it has a roller height and reduced radius, allows ease of movement (opening / closing) of the sliding leaf at least maintained relative to the trolleys of the prior art.

The inventors have observed that the radial superposition of a single central bearing mounted to rotate around a fixed shaft and of a roller integral with this single central bearing according to the state of the art does not in reality make it possible to reduce the height of the cart. In fact, reducing the height of the roller by reducing the radius of this roller does not allow satisfactory sliding of the opening sliding relative to the rail. They have however discovered that the use of two bearings integral with the rigid body and distributed on either side of the rolling area makes it possible to reduce the height of the roller by a height at least equal to twice the radial thickness of the bearing crown, in particular a height equal to twice the sum of the radial thickness of the bearing crown and the radial thickness of the roller crown. Such a reduction in the height of the roller does not hinder the sliding of the sliding leaf on the rail, but makes it possible to reduce the height of the lower horizontal cross member and, if appropriate of the upper horizontal cross member, of the frame of this opening member. sliding.

Also surprisingly, such a carriage for a sliding door according to the invention has the advantages and / or improvements mentioned above without the need to increase the number of rollers of the carriage for a sliding door according to the invention.

According to certain embodiments, a carriage for a sliding leaf according to the invention is shaped so as to be able to be arranged in a housing formed in a horizontal crosspiece of a chassis - in particular a metal chassis - of a sliding leaf. In particular, a sliding door trolley according to the invention is adapted to be able to be disposed (in the assembled state) reversibly in this housing, that is to say it is adapted to be able to be disposed (to the assembled state) in this housing and removed (in the assembled state) from this housing, for example for replacement.

According to certain embodiments of a carriage for a sliding opening according to the invention, at least one, in particular each roller, has an axis of elongation and rotation extending along the transverse dimension of the carriage for sliding opening according to the invention.

According to the invention, one of the two bearings extends to one of the two longitudinal ends of the roller, the other of the two bearings extends to the other of the two longitudinal ends of the roller. The two bearings provide a central zone of the roller intended to cooperate with a rail of the frame and to allow the rolling of said carriage for sliding leaf according to the invention on the rail of the frame.

According to certain embodiments of a carriage for a sliding leaf in accordance with the invention, nothing prevents at least one, in particular each bearing, from being a smooth bearing for guiding in rotation by sliding the roller relative to the rigid body. It can be a plain bearing in bronze or in synthetic material.

According to certain other embodiments of a sliding door trolley according to the invention, at least one, in particular each, bearing is a bearing. According to these embodiments, at least one, in particular each bearing, comprises a plurality of rolling members forming a rotation bearing without sliding of the roller relative to the rigid body. In particular, at least one - in particular each - bearing can comprise a cage of balls interposed between an outer ring secured to the rigid body and an inner ring secured to the roller. Nothing prevents that according to certain embodiments of a carriage for a sliding leaf according to the invention, at least one - in particular each - bearing comprises a cage of balls interposed between an external ring secured to the rigid body and one end of the roller forming internal ring.

According to certain advantageous embodiments of a carriage for a sliding leaf according to the invention, at least one, in particular each, bearing is a needle sleeve. According to these advantageous embodiments, at least one - in particular each bearing comprises a plurality of guide needles in rotation by rolling without sliding of the roller relative to the rigid body. In particular, at least one - in particular each - bearing can be formed of a needle sleeve comprising a peripheral cage for holding the needles integral with the rigid body, the needles of the needle sleeve providing a central space for receiving the roller and cooperation in rotation with the roller. Advantageously, each needle socket is a small footprint.

According to certain embodiments of a carriage for a sliding leaf according to the invention, at least one roller - in particular each roller of the carriage - is a roller formed in one piece. According to certain embodiments, at least one roller - in particular each roller of the carriage - is in one piece. According to certain embodiments, at least one roller - in particular each roller of the carriage - is made of a single material.

According to certain embodiments of a carriage for a sliding leaf according to the invention, at least one roller - in particular each roller of the carriage - is made of metallic material. Preferably, at least one roller - in particular each roller of the carriage - is made of a single metallic material. Preferably, at least one roller - in particular each roller of the carriage - is made of steel. In these embodiments, the rolling members are preferably made of steel.

In certain embodiments, the sliding door trolley according to the invention comprises a single rigid body and a single roller mounted to rotate relative to the rigid body.

In certain other embodiments, the sliding door trolley according to the invention comprises a single rigid body and two rollers mounted to rotate independently of one another with respect to the single rigid body.

Nothing prevents that in other embodiments, the sliding door trolley according to the invention comprises a plurality of rigid bodies, each rigid body comprising at least one roller mounted to rotate relative to the rigid body.

According to certain embodiments of a carriage for a sliding leaf according to the invention, the rigid body is formed from at least one material chosen from the group formed by polymer materials, metallic materials and composite materials.

According to certain embodiments of a sliding door trolley according to the invention, the rigid body is made of a polymer material. According to certain embodiments of a carriage for a sliding leaf according to the invention, the rigid body is made of polyamide loaded with fiberglass.

According to certain embodiments of a carriage for a sliding leaf according to the invention, the rigid body is formed in one piece (monobloc), in one piece, in one piece. According to certain embodiments, the rigid body is formed from a single material.

• une pièce intermédiaire de solidarisation du corps rigide avec un châssis de l'ouvrant coulissant, ladite pièce intermédiaire présentant un logement de réception du corps rigide, et ;
• des moyens de fixation de ladite pièce intermédiaire sur le châssis.

In certain preferred embodiments, a sliding door trolley according to the invention comprises:

• an intermediate piece for securing the rigid body with a frame of the sliding leaf, said intermediate piece having a housing for receiving the rigid body, and;
• means for fixing said intermediate piece to the chassis.

In these preferred embodiments, a carriage for a sliding leaf according to the invention comprises combined means for moving the rigid body and for adjusting the position of the rigid body in the housing for receiving the rigid body.

In these preferred embodiments of a carriage for a sliding leaf according to the invention, the means for moving the rigid body in the housing for receiving the rigid body of said intermediate piece are adapted to be able to move the rigid body at least partially vertically. with respect to said intermediate piece and with respect to the chassis, whereby the position of the roller, the position of the carriage for sliding leaf and the position of the sliding leaf is adjusted vertically relative to the rail of the frame.

• une vis d'axe horizontal et solidaire de ladite pièce intermédiaire adaptée pour pouvoir déplacer le corps rigide dans le logement, et ;
• des moyens combinés du corps rigide et de ladite pièce intermédiaire, adaptés pour pouvoir coopérer les uns avec les autres et pour pouvoir guider en déplacement le corps rigide par rapport au logement au moins en partie selon une direction verticale.

In certain embodiments of a carriage for a sliding leaf according to the invention, the means for moving the rigid body in the housing for receiving the rigid body include:

• a horizontal axis screw integral with said intermediate piece adapted to be able to move the rigid body in the housing, and;
• combined means of the rigid body and said intermediate piece, adapted to be able to cooperate with each other and to be able to guide the rigid body in displacement relative to the housing at least partially in a vertical direction.

In certain embodiments of a carriage for a sliding leaf according to the invention, the combined means of the rigid body and of said securing member are formed by a sliding guide surface of the rigid body on a complementary sliding guide surface of said intermediate piece. The combined means of the rigid body and said intermediate piece and the screw horizontal axis allow the adjustment of the position of the rigid body and the roller relative to said intermediate piece and relative to the frame rail.

In certain embodiments, a sliding door trolley according to the invention has a longitudinal groove delimited in depth by a bottom, each extending roller projecting relative to said longitudinal groove bottom. The longitudinal groove is bounded laterally by two edges formed in the carriage and in depth by the longitudinal groove bottom. In certain embodiments of a carriage for a sliding leaf comprising a member for securing the rigid body and a frame, said securing member has a groove extending the longitudinal groove of the rigid body and forming a longitudinal groove in the carriage so that the longitudinal groove of the carriage is delimited in depth by a groove bottom of the carriage, each extending roller projecting relative to said bottom of the groove of the carriage, whereby the carriage for sliding leaf according to the invention can be moved by rolling compared to the frame.

In certain embodiments of a carriage for a sliding leaf according to the invention, at least one roller is of generally cylindrical shape of revolution. At least one roller of generally cylindrical shape of revolution has an axis of revolution oriented transversely relative to the rigid body.

However, nothing prevents that according to certain embodiments of a carriage according to the invention, at least one, in particular each roller, has a groove with a radial rolling surface for the carriage moving on a rail. According to these embodiments, the radial surface groove extends substantially at equal distance from the longitudinal ends of the roller. The establishment of the roller (s) by transverse sliding of the roller (s) in the lumen of the bearings, integral with the rigid body is therefore facilitated. In these embodiments, the roller (s) are blocked in lateral / transverse movement relative to the rigid body by insertion of the carriage for a sliding leaf in the housing formed in a horizontal cross member of a sliding leaf chassis or in said intermediate piece.

According to some of these embodiments of a carriage according to the invention, the radial surface groove has a shape substantially in V according to any section of the roller passing through the axis of revolution of the roller.

According to some of these embodiments of a carriage according to the invention, the radial surface groove has a rounded shape - in particular a semi-circular shape - according to any cut of the roller passing through the axis of revolution of the roller.

According to some of these embodiments of a carriage according to the invention, the radial surface groove has a rectangular shape according to any section of the roller passing through the axis of revolution of the roller.

According to some of these embodiments of a carriage according to the invention, at least one, in particular each roller, has a radial allowance. The radial allowance is made of the same material as the roller.

According to some of these embodiments of a carriage according to the invention, at least one, in particular each roller, has a groove with a radial surface and a bandage for overmolding in at least one polymeric material.

According to certain embodiments, a trolley according to the invention comprises at least one (external) shim for adjusting at least one dimension of the trolley to the dimensions of a housing of a cross member of a sliding sash frame , said dimension of the carriage being chosen from its transverse dimension (width) and its height.

The invention extends to a sliding sash frame in which at least one cross member - in particular a lower horizontal cross member - comprises at least one carriage for a sliding sash according to the invention mounted integral with said frame.

The invention also extends to a sliding opening comprising at least one carriage for a sliding opening according to the invention mounted integral with said sliding opening.

• un châssis ;
• un vitrage supporté par le châssis, et ;
• au moins un chariot pour ouvrant coulissant selon l'invention monté solidaire du châssis.

In certain embodiments, the sliding leaf according to the invention comprises:

• a chassis ;
• glazing supported by the frame, and;
• at least one sliding door trolley according to the invention mounted integral with the chassis.

The invention extends in particular to such a sliding opening in which the ratio of the glazed surface area of the sliding opening to the total surface area of the sliding opening is high. The invention extends in particular to such a sliding opening having at least one lower cross member - and if necessary an upper cross member - of the chassis of the sliding opening member of reduced height.

• un dormant comprenant au moins un rail, et
• un ouvrant coulissant selon l'invention, monté coulissant par rapport au rail.

The invention also extends to an opening assembly comprising:

• a frame comprising at least one rail, and
• a sliding leaf according to the invention, slidably mounted relative to the rail.

The invention also relates to a carriage for a sliding leaf, a sliding leaf comprising such a carriage and a leaf assembly comprising such a sliding leaf, characterized, in combination or not, by all or some of the characteristics mentioned above or below. Whatever the formal presentation given, unless expressly indicated otherwise, the different characteristics mentioned above or below should not be considered as closely or inextricably linked, the invention possibly relating to only one of these structural or functional characteristics, or only part of these structural or functional characteristics, or only part of one of these structural or functional characteristics, or any grouping, combination or juxtaposition of all or part of these structural or functional characteristics .

Brief description of the drawings

• [Fig. 1] est une représentation illustrative d'avantages procurés par une première variante d'un chariot pour ouvrant coulissant conforme à l'invention (Fig. 1a, Fig. 1b), mais généralisable à toutes les variantes de chariots pour ouvrant coulissant selon l'invention, par rapport à un chariot pour ouvrant coulissant de l'art antérieur illustré en Fig. 1c et en Fig. 1d données uniquement à titre de comparaison ;
• [Fig. 2] est une vue d'un ouvrant coulissant, illustrative d'avantages procurés par un chariot pour ouvrant coulissant selon l'invention tel qu'illustré en Fig. 1a et en Fig. 1b de la [Fig. 1] par rapport à un chariot pour ouvrant coulissant de l'art antérieur illustré en Fig. 1c et en Fig. 1d de la [Fig. 1] ;
• [Fig. 3] représente des vues en éclaté selon respectivement une première face principale (Fig. 3a) et selon une deuxième face principale (Fig. 3b) opposée à la première face principale d'une deuxième variante d'un chariot pour ouvrant coulissant conforme à l'invention ;
• [Fig. 4] représente des vues en perspective selon respectivement une première face principale (Fig. 4a) et selon une deuxième face principale (Fig. 4b) opposée à la première face principale de la deuxième variante d'un chariot pour ouvrant coulissant conforme à l'invention ;
• [Fig. 5] représente une troisième variante d'un chariot pour ouvrant coulissant conforme à l'invention. Les Fig. 5a et Fig. 5b de la [Fig. 5] représentent des vues en perspective selon une première face principale (Fig. 5a) et selon une deuxième face principale (Fig. 5b) opposée à la première face principale de cette troisième variante d'un chariot pour ouvrant coulissant conforme à l'invention. La Fig. 5c de la [Fig. 5] est une représentation de cette troisième variante d'un chariot pour ouvrant coulissant conforme à l'invention placé dans un logement d'une traverse (vue en coupe transversale) d'un ouvrant coulissant de façon à pouvoir coopérer avec un rail d'un ensemble ouvrant conforme à l'invention ;
• [Fig. 6] représente une quatrième variante d'un chariot pour ouvrant coulissant conforme à l'invention. La Fig. 6a de [Fig. 6] est une vue en perspective de cette quatrième variante d'un chariot pour ouvrant coulissant conforme à l'invention, et la Fig. 6b est une vue de face de cette quatrième variante d'un chariot pour ouvrant coulissant conforme à l'invention placé dans un logement d'une traverse (vue en coupe transversale) d'un ouvrant coulissant de façon à pouvoir coopérer avec un rail d'un ensemble ouvrant conforme à l'invention ;
• [Fig. 7] représente un chariot pour ouvrant coulissant selon la première variante conforme à l'invention en vue en perspective (Fig. 7a) et en vue en éclaté (Fig. 7b) ;
• [Fig. 8] représente des vues en coupe longitudinale d'un chariot pour ouvrant coulissant selon la deuxième variante d'un chariot pour ouvrant coulissant conforme à l'invention dans deux conformations distinctes dudit chariot pour ouvrant coulissant ;
• [Fig. 9] représente un premier mode de réalisation d'un galet d'un chariot pour ouvrant coulissant selon l'invention, en vue à plat (Fig. 9a) et en perspective (Fig. 9b) ;
• [Fig. 10] représente un deuxième mode de réalisation d'un galet d'un chariot pour ouvrant coulissant selon l'invention, en vue à plat (Fig. 10a) et en perspective (Fig. 10b) ;
• [Fig. 11] représente un troisième mode de réalisation d'un galet d'un chariot pour ouvrant coulissant selon l'invention, en vue à plat (Fig. 11a) et en perspective (Fig. 11b) ;
• [Fig. 12] représente un quatrième mode de réalisation d'un galet d'un chariot pour ouvrant coulissant selon l'invention, en vue à plat (Fig. 12a) et en perspective (Fig. 12b) ;
• [Fig. 13] est une représentation d'un détail d'un ensemble ouvrant selon l'invention comprenant un chariot pour ouvrant coulissant selon la deuxième variante de chariot conforme à l'invention vu en perspective et solidaire avec une traverse représentée en coupe longitudinale verticale d'un châssis de l'ouvrant coulissant, coopérant avec un rail de l'ensemble ouvrant ;
• [Fig. 14] est une représentation d'un détail d'un ensemble ouvrant selon l'invention comprenant un chariot pour ouvrant coulissant selon la deuxième variante de chariot conforme à l'invention représenté en coupe sagittale et solidaire avec une traverse représentée en coupe longitudinale verticale d'un châssis de l'ouvrant coulissant, coopérant avec un rail de l'ensemble ouvrant ;
• [Fig. 15] représente des vues en perspective selon respectivement une première face principale (Fig. 15a) et selon une deuxième face principale (Fig. 15b) opposée à la première face principale d'une cinquième variante d'un chariot pour ouvrant coulissant conforme à l'invention ;
• [Fig. 16] représente des vues en éclaté selon respectivement une première face principale (Fig. 16a) et selon une deuxième face principale (Fig. 16b) opposée à la première face principale de la cinquième variante d'un chariot pour ouvrant coulissant conforme à l'invention ;
• [Fig. 17] représente un chariot pour ouvrant coulissant selon une sixième variante conforme à l'invention, en vue en perspective (Fig. 17a) et en vue de face (Fig. 17b) positionné dans un logement d'une traverse (vue en coupe transversale) d'un ouvrant coulissant de façon à pouvoir coopérer avec un rail d'un ensemble ouvrant conforme à l'invention ;
• [Fig. 18] représente un chariot pour ouvrant coulissant selon une septième variante conforme à l'invention, en vue en perspective (Fig. 18a) et en vue de face (Fig. 18b) positionné dans un logement d'une traverse (vue en coupe transversale) d'un ouvrant coulissant de façon à pouvoir coopérer avec un rail d'un ensemble ouvrant conforme à l'invention

Other objects, characteristics and advantages of the invention will appear on reading the following description given without limitation of some of its possible embodiments and which refers to the appended figures in which:

• [ Fig. 1 ] is an illustrative representation of advantages provided by a first variant of a carriage for a sliding leaf according to the invention ( Fig. 1a, Fig. 1b ), but generalizable to all variants of carriages for sliding leaf according to the invention, compared to a carriage for sliding leaf of the prior art illustrated in Fig. 1 C and in Fig. 1d data for comparison only;
• [ Fig. 2 ] is a view of a sliding door, illustrating the advantages obtained by a carriage for a sliding door according to the invention as illustrated in Fig. 1a and in Fig. 1b of the [ Fig. 1 ] compared to a sliding door carriage of the prior art illustrated in Fig. 1 C and in Fig. 1d of the [ Fig. 1 ];
• [ Fig. 3 ] represents exploded views respectively on a first main face ( Fig. 3a ) and according to a second main face ( Fig. 3b ) opposite the first main face of a second variant of a carriage for a sliding leaf according to the invention;
• [ Fig. 4 ] represents perspective views respectively on a first main face ( Fig. 4a ) and according to a second main face ( Fig. 4b ) opposite the first main face of the second variant of a carriage for a sliding leaf according to the invention;
• [ Fig. 5 ] shows a third variant of a carriage for a sliding leaf according to the invention. The Fig. 5a and Fig. 5b of the [ Fig. 5 ] represent perspective views along a first main face ( Fig. 5a ) and according to a second main face ( Fig. 5b ) opposite the first main face of this third variant of a carriage for a sliding leaf according to the invention. The Fig. 5c of the [ Fig. 5 ] is a representation of this third variant of a carriage for a sliding leaf according to the invention placed in a housing of a crosspiece (cross-sectional view) of a sliding leaf so as to be able to cooperate with a rail of a opening assembly according to the invention;
• [ Fig. 6 ] shows a fourth variant of a carriage for a sliding leaf according to the invention. The Fig. 6a from [ Fig. 6 ] is a perspective view of this fourth variant of a carriage for a sliding leaf according to the invention, and the Fig. 6b is a front view of this fourth variant of a carriage for a sliding leaf according to the invention placed in a housing of a crosspiece (cross-sectional view) of a sliding leaf so as to be able to cooperate with a rail an opening assembly according to the invention;
• [ Fig. 7 ] shows a carriage for a sliding leaf according to the first variant according to the invention in perspective view ( Fig. 7a ) and exploded view ( Fig. 7b );
• [ Fig. 8 ] shows views in longitudinal section of a carriage for a sliding leaf according to the second variant of a carriage for a sliding leaf according to the invention in two distinct conformations of said carriage for sliding leaf;
• [ Fig. 9 ] represents a first embodiment of a roller of a carriage for a sliding leaf according to the invention, in flat view ( Fig. 9a ) and in perspective ( Fig. 9b );
• [ Fig. 10 ] shows a second embodiment of a roller of a carriage for a sliding leaf according to the invention, in flat view ( Fig. 10a ) and in perspective ( Fig. 10b );
• [ Fig. 11 ] represents a third embodiment of a roller of a carriage for a sliding leaf according to the invention, in flat view ( Fig. 11a ) and in perspective ( Fig. 11b );
• [ Fig. 12 ] represents a fourth embodiment of a roller of a carriage for a sliding leaf according to the invention, in flat view ( Fig. 12a ) and in perspective ( Fig. 12b );
• [ Fig. 13 ] is a representation of a detail of an opening assembly according to the invention comprising a carriage for a sliding opening according to the second variant of carriage in accordance with the invention seen in perspective and integral with a cross member shown in vertical longitudinal section of a sliding sash frame, cooperating with a rail of the sash assembly;
• [ Fig. 14 ] is a representation of a detail of an opening assembly according to the invention comprising a carriage for a sliding opening according to the second variant of carriage in accordance with the invention shown in sagittal section and integral with a cross member shown in vertical longitudinal section of a frame of the sliding leaf, cooperating with a rail of the leaf assembly;
• [ Fig. 15 ] represents perspective views respectively on a first main face ( Fig. 15a ) and according to a second main face ( Fig. 15b ) opposite the first main face of a fifth variant of a carriage for a sliding leaf according to the invention;
• [ Fig. 16 ] represents exploded views respectively on a first main face ( Fig. 16a ) and according to a second main face ( Fig. 16b ) opposite the first main face of the fifth variant of a carriage for a sliding leaf according to the invention;
• [ Fig. 17 ] represents a carriage for a sliding leaf according to a sixth variant in accordance with the invention, in perspective view ( Fig. 17a ) and in front view ( Fig. 17b ) positioned in a housing of a cross member (cross-sectional view) of a sliding opening so as to be able to cooperate with a rail of an opening assembly according to the invention;
• [ Fig. 18 ] represents a carriage for a sliding leaf according to a seventh variant in accordance with the invention, in perspective view ( Fig. 18a ) and in front view ( Fig. 18b ) positioned in a housing of a cross member (cross-sectional view) of a sliding opening so as to be able to cooperate with a rail of an opening assembly according to the invention

Description of embodiment (s)

For comparison purposes only, a carriage 101 for sliding door of the prior art of the type described in EP1116843 is represented in Fig. 1 C of the [ Fig. 1 ]. Such a carriage 101 has two rollers 102,103 rotatably mounted each with respect to a transverse shaft mounted integral with a stirrup 105 for adjusting the position of the rollers 102,103 relative to a metal body 104 of said carriage 101. The stirrup 105 is mounted sliding relative to the metallic body 104 by means of a support shaft 112 guided at its ends by lateral openings 107 of the metallic body 104. The carriage 101 shown in Fig. 1 C of the [ Fig. 1 ] also has a screw 106 cooperating with the stirrup 105 to adjust the position of the rollers 102, 103 in height relative to the carriage 101.

On the Fig. 1d of the [ Fig. 1 ], the carriage 101 for sliding opening of the prior art is shown positioned in a housing 110 of a horizontal cross member 108 (shown in cross section in Fig. 1d ) of the frame 111 of a sliding leaf. As presented in Fig. 1d , the roller 102 extends vertically between a rolling rail 109 and an upper wall 113 of the crosses. It does not allow the height to be reduced (denoted X in Fig. 1d ) of the housing 110 for receiving the carriage 101.

A carriage 1 for a sliding leaf comprising two rollers according to a first variant in accordance with the invention is shown in Fig. 1a of the [ Fig. 1 ]. The carriage 1 comprises a rigid body 2 having a longitudinal groove 15. The longitudinal groove 15 has a generally flat bottom 16. The carriage 1 also comprises two parallel rollers 3,4 of cylindrical shape of revolution and extending at a distance from each other transversely to the rigid body 2 and projecting from the bottom 16. Each roller 3,4 is provided at each of its longitudinal ends of a bearing 5,6,7,8, each bearing 5,6,7,8 being formed of a needle sleeve mounted integral with the rigid body 2 so that the two rollers 3,4 parallel are free to rotate along a transverse axis of the carriage 1 and make it possible to guide the carriage 1 and the sliding leaf integral with the carriage 1 by rolling along the rail. The carriage 1 shown in Fig. 1a also includes an intermediate piece 9 for securing the rigid body 2 with a frame of the sliding leaf. The intermediate piece 9 has a housing dimensioned to receive the rigid body 2. It also has means 12 for securing the carriage 1 with a sliding sash frame. It may be a screw - in particular a self-perforating screw - adapted to hold the carriage 1 in position in a horizontal cross member of the frame of the sliding leaf and prevent its longitudinal displacement relative to the cross member. The intermediate piece 9 also comprises a screw 10 for adjusting the position of the rigid body 2 and the rollers 3,4 relative to the intermediate piece 9 and relative to the cross member of the sliding leaf. The intermediate piece 9 also includes a nut locked in rotation and in longitudinal translation relative to the intermediate piece 9 and adapted to receive and cooperate with the adjustment screw 10 to allow movement at least partially longitudinal of the rigid body 2 in the housing and height adjustment of the intermediate piece 9, the cross member and the sliding leaf relative to the rigid body 2 and the rail.

This first variant of a carriage 1 according to the invention is shown in Fig. 1b of the [ Fig. 1 ] in front view along the longitudinal axis of the carriage 1 positioned in a crosspiece 25 of the sliding sash frame, seen in cross section. The carriage 1 extends in a longitudinal housing 27 formed in the cross member 25 between an upper wall 28 and the side walls of the cross member 25. The carriage 1 is blocked in lateral and vertical movement in the housing 27. The carriage 1 is also blocked in longitudinal displacement relative to the crosspiece by the screw 12 for fixing the intermediate piece 9 to the crosspiece 25. The carriage 1 comprises a cylindrical roller 3 of revolution extending transversely relative to the carriage 1 and cooperating by each of its longitudinal ends with a bearing 5,6 formed by a needle socket the outer ring of which is integral with the rigid body 2. The roller 3 is rotatably mounted so that the carriage 1 can be moved longitudinally by rolling on the rail 19. In a carriage 1 according to the invention, the rolling area of the roller 3 on the rail 19 is a central area of the roller 3 and the zones for guiding the rotation of the roller 3 with respect to the rigid body 2 are lateral so that the rolling zones for the roller 3 on the rail 19 and the zones for rotation of the roller 3 with respect to the rigid body 2 permitted by the bearings 5.6 are spatially dissociated. This dissociation makes it possible to reduce the height (noted x in Fig. 1b ) of the housing 27 for receiving the carriage 1 according to the invention relative to the height X of the housing 110 for receiving the carriage 101 of the prior art illustrated in Fig. 1d .

A sliding leaf 22 according to the invention shown in [ Fig. 2 ] comprises a frame 17, for example a profiled aluminum frame, and glazing 26. The frame 17 comprises a lower cross member 25 and a horizontal upper cross member 29. The lower cross member 25 has two carriages 1 for a sliding leaf according to the invention. The hatched areas in [ Fig. 2 ] are representative of the gain in glazed area 26 provided with a sliding leaf 22 according to the invention ( Fig. 1a, Fig. 1b ) comprising at least one carriage 1 according to the invention relative to a sliding opening of the prior art comprising a carriage of the prior art ( Fig. 1c, Fig. 1d ).

A carriage 1 for a sliding leaf according to a second variant in accordance with the invention is shown in [ Fig. 3 ]. He is represented in Fig. 3a in the position it has in a lower cross member of a sliding leaf, that is to say in which the longitudinal groove 15 opens downward. The carriage 1 according to this second variant comprises a single roller 3, two bearings 5,6 mounted on a rigid body 2 so that the single roller 3 is guided in rotation by the bearings 5, 6 along an axis of rotation transverse to the carriage 1. The carriage 1 comprises an intermediate part 9 whose outer surface is dimensioned so as to be able to place the intermediate part 9 in a housing of a lower cross member of a chassis. The intermediate piece 9 comprises a screw 10 for pushing and adjusting the position of the rigid body 2 engaged with a nut 11 locked in rotation and in longitudinal displacement in a housing 30 of the intermediate piece 9 and one of the ends of which 32 longitudinal cooperates in abutment with a plate 13 of the rigid body 2 to move the rigid body 2 in the housing 14 when the screw 10 is actuated. Each bearing 5, 6 comprises a needle bushing formed of an external ring 33 secured a plurality of rotary needles 34 cooperating in rotation with the roller 3.

A carriage 1 for a sliding leaf according to the second variant in accordance with the invention is shown in Fig. 3b of the [ Fig. 3 ] in a position in which the longitudinal groove 15 opens upwards. The housing 14 of the intermediate piece 9 comprises means 18 for guiding the rigid body 2 and the rigid body 2 comprises combined means 35 for guiding the intermediate piece 9, complementary to the means 18 for guiding the rigid body 2. The complementary means 18, 35 for guiding the rigid body 2 and the intermediate piece 9 with respect to each other form a flat inclined surface so that the displacement of the rigid body 2 in the housing 14 under the action in thrust of the screw 10 has a component in vertical displacement of the rigid body 2 relative to the intermediate piece 9 and allowing a vertical adjustment of the position of the carriage 1. The intermediate piece 9 and the rigid body 2 together form a longitudinal groove 15 of rolling of the carriage 1 relative to the rail. The longitudinal groove 15 has a generally flat bottom 16, the roller 3 projecting from the bottom 16 of the longitudinal groove 15.

The carriage 1 for a sliding leaf according to the second variant according to the invention is shown in [ Fig. 4 ]. He is represented in Fig. 4a in the position it has in a lower cross member of a sliding leaf, that is to say in which the longitudinal groove 15 opens downward. He is represented in Fig. 4b in the position in which the longitudinal groove 15 opens upwards. It comprises a single roller 3, two bearings 5,6 mounted on the rigid body 2 so that the single roller 3 is guided in rotation by the bearings 5,6 according to a axis of rotation transverse to the carriage 1. The carriage 1 comprises an intermediate part 9, the outer surface of which is dimensioned so as to be able to place the intermediate part 9 in a housing of a lower cross member of a chassis. The intermediate piece 9 comprises a screw 10 for pushing and adjusting the position of the rigid body 2.

A carriage 1 for a sliding leaf according to a third variant in accordance with the invention is shown in [ Fig. 5 ]. He is represented in Fig. 5a of the [ Fig. 5 ] in the position it has in a lower cross member of a sliding leaf, that is to say in which the longitudinal groove 15 opens downward. A carriage 1 for a sliding leaf according to this third variant in accordance with the invention is also shown in Fig. 5b of the [ Fig. 5 ] in a position in which the longitudinal groove 15 opens upwards. The carriage 1 according to this third variant shown has a wedge 36 forming an extension extending on the main face of the intermediate piece 9 opposite the access face to the longitudinal groove 15 of the intermediate piece 9. Such a wedge 36 can be attached and assembled by any means - reversible or irreversible - with the intermediate piece 9. It can be joined by gluing. It can also be assembled by permanent elastic deformation or not (the term “clipping” or “snap-fast” is sometimes used) between complementary members of the intermediate piece 9 and of the shim 36. Such a shim 36 can also be formed by an integral extension of the intermediate piece 9 or of the rigid body 2. Such a wedge 36 can be formed by molding with the intermediate piece 9 or with the rigid body 2 with dimensions greater than the dimensions of the housing of the cross member intended to receive the carriage according to the invention. Such a shim 36 may be able to be cut for its adjustment to the dimensions of this housing.

A carriage 1 according to this third variant according to the invention is shown in Fig. 5c of the [ Fig. 5 ] in front view along the longitudinal axis of the carriage 1 positioned in a cross member 108 of a frame 111 of a sliding leaf, the cross member being seen in cross section. The cross member 108 of the sliding leaf shown in Fig. 5c cleaning a dwelling 110 of a height (denoted X in Fig. 5c ) greater than the minimum height (denoted x in Fig. 5c ) of the housing of a cross member capable of receiving a carriage 1 according to the invention. In this way, a carriage 1 comprising the wedge 36 according to the third variant according to the invention can be locked in a cross member of height adapted to a carriage of the prior art. Nothing therefore prevents the use of a reduced height trolley according to the invention in a high cross member compatible with a trolley of the prior art.

A carriage 1 for a sliding leaf according to a fourth variant in accordance with the invention is shown in [ Fig. 6 ]. He is represented in Fig. 6a of the [ Fig. 6 ] in the position it has in a lower cross member of a sliding leaf, that is to say in which the longitudinal groove 15 opens downward. A carriage 1 according to this fourth variant in accordance with the invention is shown in Fig. 6b of the [ Fig. 6 ] in front view along the longitudinal axis of the carriage 1, positioned in a cross member 114 of a frame 111 of a sliding leaf, seen in cross section. The cross member 114 is a cross member of great width and great height. The carriage 1 according to this third variant shown has an adapter 36 forming an extension extending on the main face of the intermediate piece 9 opposite the access face to the longitudinal groove 15 of the intermediate piece 9 and a set of fins 37.38 transverse vertical lateral setting of the carriage 1 in the housing of a horizontal cross member of great width and height of a sliding sash frame. In this way, a carriage 1 according to the fourth variant in accordance with the invention can be inserted into a very high cross-piece - in particular a height adapted to a carriage of the prior art - and of large width without the need to modify the width of the rigid body 2. Nothing therefore prevents the use of a carriage of reduced height according to the invention in a cross member of height compatible with a carriage of the prior art and of large width.

A carriage 1 for a sliding leaf according to the first variant according to the invention is shown in [ Fig. 7 ]. He is represented in Fig. 7a in a position in which the longitudinal groove 15 opens upwards. A carriage 1 according to this first variant according to the invention is also shown in Fig. 7b in the position it has in a lower cross member of a sliding leaf, that is to say in which the longitudinal groove 15 opens downward. The Fig. 7a and the Fig. 7b of the [ Fig. 7 ] complement and specify the Fig. 1a of the [ Fig. 1 ] describing a carriage 1 in which the body 2 rigid comprises two parallel rollers 3,4 of cylindrical shape of revolution and extending at a distance from each other transversely to the rigid body 2 and projecting from the bottom 16. The intermediate piece 9 has a housing dimensioned to receive the rigid body 2 with two rollers 3,4. The intermediate piece 9 also comprises a screw 10 for adjusting the position of the rigid body 2 and the rollers 3,4 relative to the intermediate piece 9. The intermediate piece 9 also includes a nut locked in rotation and in longitudinal translation relative to the intermediate piece 9 and adapted to receive and cooperate with the adjustment screw 10 to allow movement at least partially longitudinal of the rigid body 2 in two rollers 3,4 in the housing and the height adjustment of the intermediate piece 9, of the cross member and of the sliding leaf relative to the rigid body 2 and to the rail.

A carriage 1 for a sliding leaf according to the second variant according to the invention is shown in [ Fig. 8 ]. He is represented in Fig. 8a of the [ Fig. 8 ] in a carriage configuration in which the carriage has a minimum height and in which the rail is not shown. A carriage 1 according to this second variant according to the invention is also shown in Fig. 8b of the [ Fig. 8 ] in a carriage configuration in which the carriage has a maximum height and in which the rail is not shown. The Fig. 8a et al Fig. 8b of the [ Fig. 8 ] complement and specify the Fig. 3a and Fig. 3b of the [ Fig. 3 ] and the Fig. 4a and Fig. 4b of the [ Fig. 4 ] describing a carriage 1 in which the rigid body 2 comprises a single roller 3 of cylindrical shape of revolution.

In the configuration of the carriage 1 shown in Fig. 8a , the end of the thrust screw 10 does not extend into the housing 14 of the intermediate piece 9. The weight of the sliding leaf (not shown) maintains an interface 35 of the rigid body 2 in contact with an interface 18 of the intermediate part 9, the interface 35 of the rigid body 2 being of complementary shape to the interface 18 of the intermediate piece 9 and allowing a sliding of the rigid body 2 relative to the intermediate piece 9. In this configuration, the rigid body 2 is brought and maintained in the housing 14 so that the height separating the bottom of the roller 3 and the top of the intermediate piece 9 is at its minimum value.

In the configuration of the carriage 1 shown in Fig. 8b , the end of the pushing screw 10 extends in the housing 14 of the intermediate piece 9 so that the interface 35 of the rigid body 2 moved by the pushing screw 10 cooperating with the interface 18 of the piece 9 intermediate, the rigid body 2 is moved longitudinally and vertically by sliding in the housing 14. In this configuration, the rigid body 2 extends at least partially outside the housing 14 so that the height separating the bottom of the roller 3 and the top of the intermediate piece 9 is at its maximum value. This results in a possible adjustment of the vertical position of the carriage 1 and of the sliding leaf relative to the rail and the frame.

A carriage 1 for a sliding leaf according to the second variant according to the invention is shown in [ Fig. 13 ] cooperating with the rail 19 of a frame 23 and with a horizontal cross-member 25 shown in longitudinal section of a frame 17 of a sliding leaf with which it is secured with a screw 12.

A carriage 1 for a sliding leaf according to this second variant according to the invention is shown in [ Fig. 14 ] cooperating with the rail 19 of a frame 23 and with a horizontal crosspiece 25 shown in longitudinal section of a frame 17 of the sliding leaf with which it is secured by a screw 12. The carriage 1 is shown in longitudinal section according to a vertical plane. The roller 3 cooperates with the rail 19 in longitudinal displacement of the chassis 17 relative to the rail 19 and the frame 23.

Details of a first, a second, a third and a fourth embodiment of a roller 3 of a carriage according to the invention are shown in [ Fig. 9], [Fig. 10], [Fig. 11 ] and [ Fig. 12 ]. In these embodiments, the roller 3 of a carriage according to the invention advantageously has a maximum diameter in cross section between 3 mm and 15 mm, preferably of the order of 6 mm. It can advantageously have a length between 15 mm and 35 mm, preferably between 20 mm and 25 mm. Preferably, the length of the roller is substantially equal to the width of the rigid body.

In the first embodiment shown in [ Fig. 9 ] in front view ( Fig. 9a ) and in perspective ( Fig. 9b ), the roller 3 is of strictly cylindrical shape of revolution.

In the second embodiment shown in [ Fig. 10 ] in front view ( Fig. 10a ) and in perspective ( Fig. 10b ), the roller 3 is of generally cylindrical shape of revolution. It has a groove 20 with a radial surface having a substantially V-shaped shape along any section of the roller 3 passing through the axis of revolution of the roller 3. It advantageously has a diameter (excluding groove 20 with radial surface) in cross section between 3 mm and 15 mm, preferably of the order of 6 mm.

In the third embodiment shown in [ Fig. 11 ] in front view ( Fig. 11a ) and in perspective ( Fig. 11b ), the roller 3 is of generally cylindrical shape of revolution. It has a groove 20 with a radial surface having a rounded shape - in particular a semicircular shape - along any section of the roller 3 passing through the axis of revolution of the roller 3. It advantageously has a diameter (excluding groove 20 with a radial surface) in section transverse straight line between 3 mm and 15 mm, preferably of the order of 6 mm.

In the fourth embodiment shown in [ Fig. 12 ], front view ( Fig. 12a ) and in perspective ( Fig. 12b ), the roller 3 is of generally cylindrical shape of revolution. It has a radial allowance 21. It can be in one piece, in one piece in one material or not. It advantageously has a diameter (excluding radial allowance 21) in cross section between 3 mm and 15 mm, preferably of the order of 6 mm.

A carriage 1 for a sliding leaf according to a fifth particular variant in accordance with the invention is shown in [ Fig. 15 ] in perspective and in [ Fig. 16 ] in exploded view. It is formed by a functional assembly comprising a rigid body 2, a roller 3 and two bearings 5,6. Such a functional assembly is adapted to be able to be placed in a housing of a horizontal cross member of a frame of a sliding leaf. Nothing prevents a trolley 1 according to the invention formed from this functional assembly from being free from an intermediate part for securing the trolley to the horizontal cross-member, the rigid body 2 inserted in the housing of the horizontal cross-member itself serving as intermediate insert into the crosspiece.

A carriage 1 for a sliding leaf according to a sixth variant in accordance with the invention is shown in [ Fig. 17 ] in perspective view ( Fig. 17a ) and in sight front ( Fig. 17b ). The carriage 1 has a set of front fins 37 and rear transverse vertical fins 38 of the same height as the intermediate piece 9. The fins 37, 38 allow lateral wedging of the intermediate piece 9 in the housing of a wide horizontal cross member of a sliding sash frame. In this way, a carriage 1 according to this sixth variant in accordance with the invention can be inserted into a crosspiece of reduced height - in particular of a height adapted to a carriage according to the invention - but of large width without the need to modify the width of the intermediate piece 9 of the carriage 1. Nothing prevents the use of a reduced height carriage according to the invention in a very wide cross member.

A carriage 1 for a sliding leaf according to a seventh variant in accordance with the invention is shown in [ Fig. 18 ] in perspective view ( Fig. 18a ) and in front view ( Fig. 18b ). The carriage 1 has a set of fins 37 front and 38 rear transverse vertical and of height greater than the height of the intermediate piece 9. The fins 37, 38 allow lateral and height wedging of the intermediate piece 9 in the housing of a horizontal cross member of great width and great height of a sliding sash frame. In this way, a carriage 1 according to this seventh variant in accordance with the invention can be inserted into a very high cross-piece - in particular of a height adapted to a carriage of the prior art - and of large width without the need to modify the width of the intermediate piece 9 of the carriage 1. Nothing prevents the use of a carriage of reduced height according to the invention in a cross member of great width and great height.

Such fins 37, 38 can be formed by an integral extension of the intermediate piece 9 or of the rigid body 2. They can be formed by molding with the intermediate piece 9 or with the rigid body 2 with dimensions in accordance with the dimensions of the housing of the cross member intended to receive the carriage according to the invention. They can be formed by molding with dimensions greater than the dimensions of the cross-member housing and be cut to adjust the dimensions of the carriage to the dimensions of this housing.

There is nothing to prevent either that, in a variant not shown, a carriage for a sliding leaf according to the fifth variant according to the invention formed by a functional assembly comprising a rigid body, a roller and two bearings, also comprises at least one shim for adjusting at least one dimension of the carriage to the dimensions of the transverse housing (width) and its height. It can be an extension or a set of transverse vertical front and rear fins.

The invention can be subject to numerous variants and applications other than those described above. In particular, it goes without saying that, unless otherwise indicated, the different structural and functional characteristics of each of the embodiments described above should not be considered as combined and / or closely and / or inextricably linked to each other, but to the otherwise like simple juxtapositions. In addition, the structural and / or functional characteristics of the various embodiments described above may be the subject in whole or in part of any different juxtaposition or of any different combination. In addition, the shape, dimensions and materials of the rigid body and of the intermediate piece, the number of rollers per rigid body, the diameter and the length of the rollers can be adapted without departing from the invention.

Claims (15)

Trolley (1) for sliding door comprising: - a rigid body (2); - at least one roller (3,4) mounted to rotate relative to the rigid body (2); characterized in that each roller (3,4) is guided in rotation by and between two bearings (5,6,7,8) mounted integral with the rigid body (2). Trolley according to claim 1, characterized in that it is shaped so that it can be arranged in a housing formed in a horizontal crosspiece of a sliding sash frame. Trolley according to one of claims 1 or 2, characterized in that at least one bearing (5,6,7,8) is a bearing. Trolley according to one of Claims 1 to 3, characterized in that at least one bearing (5,6,7,8) is a needle socket. Trolley according to one of Claims 1 to 4, characterized in that the rigid body (2) is formed from at least one material chosen from the group formed by polymer materials, metallic materials and composite materials. Trolley according to one of Claims 1 to 5, characterized in that it comprises: - An intermediate part (9) for securing the rigid body (2) with a frame (17) of the sliding leaf (22), said intermediate part (9) having a housing (14) for receiving the rigid body (2) , and; - Means (12) for fixing said intermediate piece (9) on the chassis (17). Trolley according to claim 6, characterized in that it comprises means (18) combined for moving the rigid body (2) and for adjusting the position of the rigid body (2) in the housing (14) for receiving the body ( 2) rigid. Trolley according to one of claims 1 to 7, characterized in that it has a longitudinal groove (15) delimited in depth by a bottom (16), each roller (3,4) projecting from the bottom (16) of the longitudinal groove (15). Trolley according to one of claims 1 to 8, characterized in that at least one roller (3,4) is of generally cylindrical shape of revolution. Trolley according to one of claims 1 to 9, characterized in that at least one roller (3,4) has a groove (20) in the radial rolling surface of the trolley (1) moving on a rail (19). Trolley according to one of Claims 1 to 10, characterized in that at least one roller (3,4) has a groove (20) with a radial surface and an overmolding bandage made of at least one polymer material cooperating with the groove ( 20) of radial surface. Trolley according to one of Claims 1 to 11, characterized in that it comprises at least one shim (36,37,38) for adjusting at least one dimension of the trolley (1) to the dimensions of a housing ( 27) of a crosspiece (25,108,114,115) of a frame (17) of a sliding leaf (22), said dimension of the carriage being chosen from its transverse dimension and its height. Trolley according to one of claims 1 to 12, characterized in that the rigid body (2) is made of polyamide loaded with fiberglass. Sliding opening (22) comprising: - a chassis (17); - a glazing (26) supported by the frame (17), and; - At least one carriage (1) according to one of claims 1 to 13 mounted integral with the chassis (17). Opening assembly (24) comprising: - a frame (23) comprising at least one rail (19), and; - a sliding leaf (22) according to claim 14, slidably mounted relative to the rail (19).

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