EP4039929A1 - Rolling device for sliding leaf of a door or window - Google Patents

Abstract

The invention relates to a rolling device (4) for a sliding leaf (2) of a door or window (1), comprising a casing (7) accommodating at least two cages (13; 13A) one arranged behind the other, in a cage (13; 13A) being mounted in rotation about a horizontal axis (14), a roller (15), said cages (13; 13A) being mounted in the casing (7) movable in translation in at least a vertical direction (20) and in a horizontal direction (21) perpendicular to the axis of rotation (14) of the roller (15), said housing (7) comprising at least one inclined support ramp (22; 22A ) with which is applied at least one bearing surface (23) of substantially identical inclination that the said cages (13; 13A) comprise at least at the level of a first end side (18), characterized in that said cages (13; 13A) comprise on a second end side (19), opposite the first (18), a substantially vertical bearing surface (26) cooperating, as the case may be, with a complementary bearing face (27) that comprises the casing (7), or a first end side (18) of an adjacent cage (13A; 13).

Description

The present invention relates to a rolling device for a sliding sash of a door or window comprising a casing accommodating at least two cages, one arranged behind the other, in a cage being mounted in rotation about a horizontal axis, a rolling roller .

The present invention relates to the field of building hardware and relates, more particularly, to rolling devices intended to be associated with a sliding leaf of the door or window type.

Usually, joinery, of the door or window type, comprising at least one leaf mounted movable in translation on a fixed frame uses such rolling devices. It is through the latter that such a sliding leaf generally rests on the lower crosspiece of the fixed frame to make its movement easier.

These rolling devices are usually mounted under the bottom rail of the sash. They are at least two in number located at the ends of the lower crosspiece, in all cases at least one located on each side of the transverse median plane of this sliding leaf.

To ensure proper docking of the latter with respect to its fixed frame, at least one of these rolling devices is provided with adjustment means acting essentially vertically on the running roller(s) with which they are provided.

Such adjustment means can take different embodiments, including that of an adjustment screw directly on the rolling device or of a more complex assembly, using transmission rods making it possible to act remotely on at least one rolling device, for example from one or the other end of the lower rail of the sliding sash.

When a rolling device comprises several rolling rollers to divide the load that each one has to support, it is imperative that this equal load distribution on each roller be preserved beyond the adjustments likely to intervene to adjust the docking of the sash relative to the fixed frame.

For this purpose, a running device, provided with several running rollers, is designed in the manner of a railway wagon bogie. In short, the rollers are mounted for horizontal rotation in an intermediate frame, itself pivotally mounted about a horizontal axis in a housing that includes such a rolling device.

It is understood that the design and assembly of these rolling devices with multiple rollers is relatively complex and generates a non-negligible cost price. In addition, separate production lines should be designed and separate stocks of single-roller and multi-roller rolling devices should be maintained.

Moreover, rolling devices designed in this way also prove to be more fragile over time. Indeed, the distribution of the load of the opening on the various rollers is carried out through the pivoting mounting of the intermediate frame in the housing, representing a point of fragility of these rolling devices.

We also know from the document WO201100788A1 a rolling device for a sliding sash comprising a casing accommodating two running roller cages, arranged symmetrically one behind the other. The housing comprises an inclined support ramp with which comes into application an identical inclination support surface that comprises a first cage at the level of a first end side, knowing that the vertical opposite end side comes into support on the identical vertical side of the second cage arranged symmetrically. In fact, the inclined support surface of this second cage cooperates with a similar inclination ramp that includes an adjustment wedge mounted movable in horizontal translation in the case under the impulse of an adjustment screw.

Thus, by bringing this ramp closer to the adjustment wedge of the inclined support ramp in the box against which the first cage rests, the two cages tend to descend into the box, causing the leaf to rise under which is mounted this rolling device. A contrary action naturally causes the leaf to sag.

Although nested with each other at the height of their vertical end side, the cages are vertically movable relative to each other, mobility resulting from their interlocking play.

Finally, we observe that this solution according to the state of the art implements multiple sliding interlockings: on the one hand between the two cages between them, then between these cages and the case on one side and the adjustment wedge of the 'other. In fact, in the inclined support surfaces of the cages, a T-slot is cut into which a T-rail engages equipping the inclined support ramps that comprise, on one side, the box and, on the another, the adjusting wedge.

This design is particularly complex and can lead to one cage jamming or seizing relative to the other or even relative to the case or the adjustment wedge. Such a blockage can make adjustment impossible or prevent the cages from adjusting vertically on the rail on which their roller is intended to rest.

The invention makes it possible to remedy these drawbacks of the state of the art while meeting the targeted objectives.

To this end, the invention relates to a rolling device for a sliding door or window leaf, comprising a casing accommodating at least two cages, one arranged behind the other, in a cage being mounted in rotation about a horizontal axis. a roller, said cages being mounted in the casing movable in translation in at least one vertical direction and in a horizontal direction perpendicular to the axis of rotation of the roller, said casing comprising at least one support ramp inclined with which comes into application at least one support surface of substantially identical inclination that the said cages comprise at least at the level of a first end side, characterized in that the said cages comprise on a second end side, opposite the first, a substantially vertical bearing face cooperating, as the case may be, with a complementary bearing face that comprises the case, or a first end side of an adjacent cage.

According to yet another feature of the invention, the rolling device comprises means for vertically adjusting at least one cage in the housing.

The advantages deriving from the present invention consist in that the cage(s) for receiving the rolling rollers are mounted, not in rotation, but in horizontal and vertical translation in the casing of the rolling device. The result is a simplified design and increased longevity through the latter. In addition, these roller cages are standard and are able to come housed by interlocking in a housing of a single or double roller bearing device.

• [Fig.1] représente schématiquement une fenêtre dont au moins un ouvrant et coulissant dans un cadre dormant ;
• [Fig.2] représente schématiquement et en coupe d'un premier mode de réalisation d'un dispositif de roulement conforme à l'invention comportant deux galets roulement ;
• [Fig.3] est un schéma de principe du fonctionnement des moyens de réglage vertical associés à ce mode de réalisation de la figure 2 ;
• [Fig.4] est un schéma de principe du fonctionnement des moyens de réglage vertical associés à ce mode de réalisation des figures 2 et 3.

The understanding of this description will be facilitated by referring to the attached drawings in which:

• [ Fig.1 ] schematically represents a window including at least one opening and sliding in a fixed frame;
• [ Fig.2 ] shows schematically and in section a first embodiment of a rolling device according to the invention comprising two running rollers;
• [ Fig.3 ] is a block diagram of the operation of the vertical adjustment means associated with this embodiment of the figure 2 ;
• [ Fig.4 ] is a block diagram of the operation of the vertical adjustment means associated with this embodiment of the figure 2 and 3 .

As depicted in the figure 1 of the attached drawings, the present invention relates to joinery, such as doors or windows 1, comprising at least one opening 2 slidably mounted in a fixed frame 3.

The invention relates, more particularly, to a rolling device 4 intended to equip such a sliding leaf 2 at the level of its lower crosspiece 5 to rest, in a sliding manner, on the corresponding lower crosspiece 6 of the fixed frame 3.

Very often, such a rolling device 4 is engaged in a profile in the form of a rail made in the rebate of this lower crosspiece 5 of the opening 2, it being understood that the present invention is in no way limited to such a design.

Referring now to figures 2 to 4 drawings in the appendix, the rolling device 4 essentially comprises a housing 7 of substantially parallelepipedal shape comprising at least two parallel longitudinal walls 8, 9 connected by end walls 10, 11. This housing 7 is at least open to the level of its underside 12.

This box 7 accommodates at least two cages 13; 13A in which is rotatably mounted about a horizontal axis 14 a roller 15. Again, a cage 13; 13A comprises two parallel longitudinal walls 16, 17, connected at their ends by a first end side 18 and a second end side 19.

According to the invention, a cage 13; 13A is mounted in the casing 7 movable in translation in at least one vertical direction 20 and in a horizontal direction 21 perpendicular to the axis of rotation 14 of the roller 15. This horizontal direction 21 substantially corresponds to the longitudinal axis of the casing 7 and to the direction of movement of the sliding sash 2 in its fixed frame 3.

The housing 7 further comprises at least one inclined support ramp 22; 22A with which is applied a support surface 23 of substantially identical inclination that includes a cage 13; 13A at least at its first end side 18.

According to an exemplary embodiment, at this first end side 18, the longitudinal walls 16, 17 of this cage 13; 13A comprise, in their upper part, oblique cuts 24 whose edge 25 defines this support surface 23 designed to cooperate with an inclined support ramp 22; 22A provided internally to the longitudinal walls 8, 9 of the housing 7.

Thus, these ramps 22; 22A can extend between these longitudinal walls 8, 9, just as they can be defined by ramp portions that comprise, face-to-face, these longitudinal walls 8, 9 of the housing 7, as illustrated in the drawings, and of which one ramp portion cooperates with the oblique cut 24 of the longitudinal wall 16 and of which the other with that of the longitudinal wall 17, oblique cuts 24 each defining a bearing surface 23.

According to the invention, a cage 13; 13A comprises on its second end side 19, opposite to the first 18, a substantially vertical bearing face 26 cooperating, as the case may be, with a complementary bearing face 27 that the housing 7 comprises, or a first side of end 18 of an adjacent cage 13A.

Advantageously, the rolling device 4 comprises means 29 for vertical adjustment of at least one cage 13; 13A in the box 7. In particular, through such adjustment means 29 it is possible to adjust the docking, in other words the squareness of a sliding leaf 2 with respect to its fixed frame 3.

According to a preferred embodiment of the invention, these vertical adjustment means 29 are defined in the form of means for adjusting the distance 30 between a complementary support surface 27 in the housing 7 and at least one support ramp inclined 22; 22A corresponding to a receiving housing 28 of a cage 13.

Referring to the figures, the vertical adjustment means 29 are defined by a complementary support face 27 adjustable in position in the housing 7 by longitudinal translation to modulate its distance 30 with respect to the inclined support ramp 22. Thus, by acting on this distance 30, for example by bringing the complementary support face 27 closer to this inclined support ramp 22 using an adjustment screw 31, the interaction between this inclined support ramp 22 and the bearing surface of similar inclination 23 that comprises at its first end side 18 a cage 13, the latter is pushed downwards.

It is understood that, in a situation mounted on a sliding sash 2, such an action on the rolling device 4 has the consequence of lifting the sash 2 relative to the fixed frame 3.

Obviously, a contrary action leading to increase this distance 30, has the consequence of the rise of the cage 13 in the housing 28 of the box 7 and the collapse of the opening 2.

The figures 2 to 4 illustrate a rolling device 4 comprising a housing 7 defined to accommodate at least two cages 13, 13A, one arranged behind the other so that the first end side 18 of the first cage 13 bears against the face vertical support 26 of the second end side 19 of the second cage 13A. This box 7 comprises, internally, inclined support ramps 22, 22A, each of which is able to cooperate with the support surface of similar inclination 23 that has on its first end side 18 one of the cages, depending on the case 13 or 13A.

In this configuration, the vertical support face 26 on the second end side 19 of the first cage 13 bears against a complementary support face 27 that the housing 7 comprises internally.

This complementary support surface 27 is adjustable in position in the housing 7 by longitudinal translation to modulate its distance 30 with respect to the inclined support ramps 22, 22A. Thus, as the wish to illustrate the figure 3 , by bringing it closer to these ramps 22, 22A using the adjusting screw 31, it pushes the first cage 13 horizontally against the inclined support ramp 22, in turn pushing this cage 13 downwards. exerts a substantially similar horizontal thrust on the second cage 13A interacting in turn on the ramp 22A with a substantially similar consequence.

Note, however, that the cages 13 and 13A, being in contact and not connected to each other, are individually movable vertically in the housing 7. This feature has the consequence of allowing the housing 7 to pivot around an axis substantially parallel to the pivot axis 14 of the rollers 15. In short, this box 7 can adopt an inclined position with respect to the support surface of these rollers 15 on their rail at the level of the lower crosspiece 6 of the fixed frame 3. This situation, schematically illustrated in the figure 4 , is the one that can be encountered when adjusting the positioning of the sash 2 in its fixed frame 3.

As emerges from the preceding description and, more particularly, from the characteristics of the present invention, the latter leads to a rolling device 4 for sliding leaf 2 satisfying all the drawbacks of the prior state of the art. In particular, this solution according to the invention avoids the pivoting mounting of a cage 13 with roller 15 in the housing 7 of this rolling device 4, mounting which is not only complex, but subject to malfunction over time.

In addition these roller cages 13; 13A are standard and are able to be housed by simple interlocking in a housing 7 of a rolling device 4 with a single or double roller.

Note in this regard that a roller cage 13; 13A can be maintained, after mounting in the box 7, by means of suitable retaining means (not shown), such as clipping means or the like, to prevent it from falling from this box 7, in particular when fitting a sliding sash 2 with a rolling device 4 according to the invention, or even when mounting this sash 2 on its fixed frame 3.

Claims (7)

Rolling device (4) for sliding leaf (2) of door or window (1), comprising a housing (7) accommodating at least two cages (13; 13A) one arranged behind the other, in a cage (13 13A) being rotatably mounted about a horizontal axis (14) a roller (15), said cages (13; 13A) being mounted in the housing (7) movable in translation in at least one vertical direction (20 ) and in a horizontal direction (21) perpendicular to the axis of rotation (14) of the roller (15), said housing (7) comprising an inclined support ramp (22; 22A) with which comes into at least one support surface (23) of substantially identical inclination which the said cages (13; 13A) comprise at least at the level of a first end side (18), characterized in that the said cages (13; 13A) comprise on a second end side (19), opposite the first (18), a substantially vertical bearing face (26) cooperating, as the case may be, with a bearing face complementary ui (27) that comprises the housing (7), or a first end side (18) of a cage (13A; 13) adjacent. [Running device (4) according to claim 1, characterized in that it comprises means (29) for vertical adjustment of at least one cage (13; 13A) in the housing (7). [Running device (4) according to Claim 2, characterized in that the vertical adjustment means (29) are defined in the form of means for adjusting the distance (30) between a complementary bearing surface (27) in the housing (7) and at least one inclined support ramp (22; 22A). [Running device (4) according to Claim 3, characterized in that the vertical adjustment means (29) are defined by the complementary bearing surface (27) adjustable in position in the housing (7) by longitudinal translation to modulate its distance (30) from an inclined support ramp (22; 22A). [Running device (4) according to one of the preceding claims, characterized in that the housing (7) comprises, internally, inclined support ramps (22, 22A) each of which cooperates with a support surface of similar inclination (23) of one of the cages, as the case may be, (13) or (13A). [Running device (4) according to the preceding claims, characterized in that the vertical support face (26) on the second end side (19) of the first cage (13) comes to bear on a face of additional support (27) adjustable in position in the housing (7) by longitudinal translation to modulate its distance (30) relative to the inclined support ramps (22, 22A). [Running device (4) according to any one of the preceding claims, characterized in that a cage (13; 13A) is held, after assembly in the housing (7), by means of suitable retaining means, such as clipping means or the like.

Images