EP0801198B1 - Rolling device for sliding doors, windows or the like - Google Patents

Abstract

The roller comprises a carriage (7) with rollers (8) which is housed in a notch in the lower edge of a section defining the door lower cross member. The carriage is fixed at its ends by fasteners (27,28) which anchor on the notch transverse edges (29,30). The carriage is supported against a metal reinforcement or a horizontal wall located in the section internal part (5). The fasteners are defined by a horizontal edge (31) which projects along the carriage longitudinal axis. One of the edges is subjected to a return spring (33) which enables retraction of the fastener to allow its clipping and dismantling. The fasteners are completed by a holder which vertically immobilises the roller in the section notch.

Description

The invention relates to a rolling device for opening sliding for door, window or the like, comprising a carriage receiving rolling means and which is intended for come and stay in a notch made in the song lower of a profile defining the lower cross member of said opening of which the carriage is made integral by means of fixing made up, at each of the transverse ends of the trolley, hooking means, able to come and hang on the transverse edges of the notch in order to oppose when said carriage is released, the latter being able to come bearing against a metal reinforcement or a horizontal wall located in the internal part of said profile.

This invention will find its application in the field of hardware for building and furniture.

We already know a number of rolling devices corresponding to the description given above and facilitating the movement of a sliding door corresponding, for example, to a door, window or the like.

Thus, these rolling devices are in the form a carriage attached below the lower crossmember said opening by means of fixing elements appropriate. In this regard, it should be noted that the device for bearing, in accordance with the invention, is more particularly intended to be mounted on openings constituted by a assembly of metallic tubular profiles, in particular in aluminum, or plastic like PVC. We will notice as such a tubular aluminum or PVC profile, defining the lower cross member of an opening comprises a groove in "U" lying at the level of its lower edge and in which one comes, precisely, to position the carriage corresponding to the rolling device.

In fact, this groove often has a depth insufficient so it is necessary to carry out a notching allowing, at least partially, to be inserted into it, said carriage.

Under these conditions, there arises the problem of fixing this last on said profile. In fact, according to a first mode of known embodiment, said carriage is equipped, at each of its ends and in the longitudinal direction of fixing lugs used for the passage of fasteners, such as screws, rivets or the like, which are screwed or inserted into openings on either side of the notch present in the bottom of the "U" groove of the tubular profile.

It is agreed that it is necessary, under these conditions, that the notching carried out for the reception of the carriage either strictly adjusted, in length, relative to the latter without what the openings for the passage of the fasteners, either fall back into the notch, or are too close to the latter so that the material is weakened at this location not offering enough resistance to the attachment of the fixing members.

In addition, it will be remembered that if the solution previously mentioned is restrictive but possible in the case opening in metal profiles, in particular in aluminum, it is absolutely not applicable when said profile tubular designing the lower cross member of this opening is made of synthetic material, more particularly PVC.

In fact, under such conditions, said tubular profile has, in its internal part, a reinforcement in the form of a metal profile against which said carriage bears rolling device.

Also, we come to machine this reinforcement to allow it to accommodate fasteners such as screws, rivets or analogs, otherwise passing through the openings in the fixing lugs of said carriage. Again, we will agree that this machining of the reinforcements is particularly binding, requiring the use of a template etc., without count that it is often essential, in this case, to cut more the PVC profile to, as appropriate, allow the reinforcement to be machined or the lugs to pass attachment associated with the carriage.

Finally, it will be observed that if reference is made to the riveting to ensure the connection between the profile and the rolling device it is more frequently used screws to allow disassembly. Now, the screwing is considered by the carpenters as a long operation and, therefore, expensive. In addition, disassembly remains restrictive insofar as it is necessary to be able to access, using a screwdriver, under the lower cross member of this opening to remove the fasteners. We understand, easily, that it cannot be done, simply, by lifting, slightly, this opening. In fact, it is almost essential to install the sash horizontally to proceed to the maneuver.

It is also known, from document US-4,850,078, a bearing device installed in the lower crossmember corresponding to a sliding leaf and constituted by a profile of substantially tubular shape.

More specifically, this device is introduced inside a notch formed in the bottom wall of said profile and defining the lower edge of said opening. We will notice that said notching has transverse edges with which are likely to cooperate fixing means of said device.

In this regard, the fixing means include means more particularly, under the form of elastic blades, substantially vertical, integrated to the transverse walls of the device and one end of which free comes to rest on the inner wall of the edges notches. It should be noted that these blades elastics are intended to oppose the release involuntary device but authorize, so voluntary and as appropriate, the introduction and withdrawal of device inside the notch. These means of attachment have, again, wings integral with the lower end of said device and extend in direction of the transverse edges of the notch. These wings are supported on the bottom wall of the tubular profile and define the lower edge of the opening.

It will be observed, in this document, that the bearing is put in place and held in its position only thanks to the fixing means which act only on the edges of the notch. So the device cannot bear against a metal reinforcement or a horizontal wall located in the internal part of the streamlined.

The US document US-5,161,330 also relates to a adjustable rolling device for sliding sash for door or the like.

Again, such a device is housed in a notch formed in the lower edge of a profile defining the lower cross member of the sash. This profile presents, in its internal part, a wall against which is intended to support the upper end of the rolling. The latter is kept in this position by on the one hand, through a slot in one of its transverse ends for receiving one of the edges transverse of the notching and, on the other hand, thanks to a blade elastic metal. Such a blade is made integral, in one of its ends, of the device while its end free, hook-shaped, cooperates, after placing under blade stress, with the other transverse edge of tapping. It will be observed that, in the present case, the height of the device must be strictly adjusted to the depth of tapping.

Ultimately, the purpose of the present invention is to remedy to all of these disadvantages encountered in terms of fixing of a rolling device under the crossmember bottom of a sliding door.

• lesdits moyens d'accrochage sont définis par un rebord horizontal se présentant saillant dans l'axe longitudinal du chariot, ceci à hauteur de ses extrémités transversales, au moins l'un des rebords horizontaux étant soumis à des moyens de rappel élastiques agissant au moins dans le sens longitudinal du chariot et permettant d'escamoter lesdits moyens d'accrochage pour autoriser le passage par clipage de celui-ci et son démontage ;
• lesdits moyens d'accrochage sont complétés par des moyens de retenue à même d'immobiliser verticalement ledit dispositif de roulement dans l'entaillage du profilé, lors du décrochement de l'ouvrant coulissant, tout en autorisant ledit chariot à prendre appui contre ledit renfort métallique ou ladite paroi horizontale située dans la partie interne du profilé au moment de reposer l'ouvrant coulissant sur son rail de guidage.

To this end, the invention relates to a rolling device for a sliding leaf for a door, window or the like, comprising a carriage receiving rolling means and which is intended to be housed in a notch formed in the lower edge of a profile. defining the lower cross member of said opening of which the carriage is made integral by fixing means constituted, at each of the transverse ends of the carriage, hooking means capable of coming to hang on the transverse edges of the notching in order to oppose the release of said carriage, the latter being able to come into abutment against a metal reinforcement or a horizontal wall located in the internal part of said profile, characterized in that:

• said attachment means are defined by a horizontal flange projecting in the longitudinal axis of the carriage, this at the height of its transverse ends, at least one of the horizontal flanges being subjected to elastic return means acting at least in the longitudinal direction of the carriage and making it possible to retract said attachment means to authorize the passage by clipping thereof and its disassembly;
• said attachment means are supplemented by retaining means capable of immobilizing said rolling device vertically in the notching of the profile, when the sliding opening is unhooked, while allowing said carriage to bear against said metal reinforcement or said horizontal wall located in the internal part of the profile at the time of resting the sliding leaf on its guide rail.

The advantages arising from the present invention consist, essentially, in that, on the one hand, the mounting of the device under the profile defining the lower cross member of the opening can be done by simple clipping and one is, by therefore, exempt from any tedious screwing operation. In fact, disassembly is also easy, since it is sufficient to raise the sash by the height of the rolling device to be able to remove it without tools.

In addition, whatever the material of the profile intended to receive such a rolling device, it is no longer necessary to machine, as appropriate, the profile or the reinforcement housed in the latter for receiving fasteners. If that is advantageous in itself, we will remember, in particular, that, moreover, it follows that the tapping may be made with wider tolerances. Indeed, the means of elastic recall to which the fastening means are subjected fitted, at least one of the ends of the carriage, are in able to compensate for the dimensional variations of this notching without other constraints.

La figure 1 est une vue schématisée et en coupe d'un profilé définissant la traverse inférieure d'un ouvrant de portes, fenêtres ou analogues, dans la rainure aménagée dans le chant inférieur de ce profilé étant destiné à être inséré le dispositif de roulement représenté dans les figures 2 et 3 et qui vient reposer sur un rail qui est, là encore, représenté en coupe dans cette figure 1 ;

La figure 2 est une vue en élévation du dispositif de roulement conforme à l'invention ;

La figure 3 est une vue en plan de ce dispositif de roulement tel que représenté dans la figure 1.

The invention will even be understood on reading the description which will follow and with reference to the attached drawing illustrating only one embodiment.

Figure 1 is a schematic sectional view of a profile defining the lower cross member of a door leaf, window or the like, in the groove formed in the lower edge of this profile being intended to be inserted the bearing device shown in Figures 2 and 3 and which rests on a rail which is, again, shown in section in this Figure 1;

Figure 2 is an elevational view of the rolling device according to the invention;

FIG. 3 is a plan view of this rolling device as shown in FIG. 1.

The present invention relates to a rolling device 1 such as shown in Figures 2 and 3, more particularly intended for a sliding door 2, window or similar. In Figure 1 we simply represented this opening 2 in the form of a profile 4 which, as visible, can be made of synthetic material, in particular PVC, and comprising, in its internal part 5, a metal reinforcement 6. Good understood, the present invention is in no way limited to a such application of the rolling device 1 to a profile in synthetic material. Indeed, this profile 4 can also be metallic, more particularly of aluminum alloy.

To return to the rolling device 1, it is defined, mainly, by a carriage 7 of longitudinal shape and of substantially parallelepipedal section. This cart 7 receives rolling means 8 in the form of one or more rollers 9.

For adjustment issues at the opening height, this or these rollers 9 can themselves be rotatably mounted in a casing 10 comprising, at its side walls 11, 12 oblique lights 13 crossed by an axis 14 arranged transversely inside the carriage 7. Thus, ensuring the displacement of the casing 10, inside the carriage 7, in a longitudinal direction it results under the influence of the cooperation of oblique lights 13 and axis 14, a displacement with a vertical component of this casing 10 by report to said carriage 7.

The adjustment is more particularly obtained under the impulse an adjusting screw 15 engaged in a tapped hole 16 formed at one of the transverse ends 17 of the carriage 7, this adjusting screw 15 bearing, at its free end, on the transverse wall 18 of the housing 10. A the opposite end 19 of the latter support means elastic return 20 systematically pushing the casing 10 pressing against the adjusting screw.

It will be noted, in this regard, that such elastic return means 20 facilitate the release of the opening 2 and the release of rollers 9 of the guide rail 21 which, as shown in the Figure 1, is mounted on the threshold 22 of the door, window or similar. Indeed, without these elastic return means 20 and when lifting the leaf 2, said casing 10 would fall back, automatically, down so that the rollers 9 would remain engaged on the guide rail 21. In these conditions, it would be better to raise the opening 2 which, of course, is not desirable.

In fact, as discussed in the introductory part above, the present invention aims to solve a problem of fixing of this rolling device 1 at the lower cross member 3 of the opening 2 defined by the profile 4. A this subject, this one comprises, at the level of its lower song 23, a notch 24 of section adjusted to the passage of the bearing device 1. Finally, as visible in the Figure 1, this notching 24 is made in the bottom 25 of a "U" groove 26 which is usually found at the level of this lower edge 23 of such profiles 4. At the end of counts, through this notching 24, the device for bearing 1 can be supported, as part of a profile in PVC, on the metal reinforcement 6.

As for the actual fixing of this device bearing, it is ensured, according to the invention, by by means of attachment means 27, 28 fitted, advantageously, the transverse ends 17 and 17A of the carriage 7, these attachment means 27, 28 being intended to cooperate with the transverse edges 29, 30 of the notch 24 formed in the profile 4.

According to a preferred embodiment, such means 27, 28 are defined by a horizontal flange 31 having projecting in the longitudinal axis of the carriage 7, this at the level of its transverse ends 17, 17A. These ledges horizontal 31 are, therefore, intended to come catch on the transverse edges 29, 30 of the notch 24 and rest on the internal side 32 of the wall in which this notching 24 is carried out, in this case the bottom 25 of the groove 26 present at the lower edge 23 of the profile 4.

In addition, according to the invention, at least the attachment means 27 located at one of the transverse ends 17A of the carriage 7 are subjected to elastic return means 33 acting at least in the longitudinal direction of the latter and allowing to retract these attachment means 27 for authorize, as appropriate, clip-on mounting of the carriage 7 in the notching 24 or its disassembly.

Such elastic return means 33 can borrow different embodiments. We can in particular consider, according to a solution not shown in the figures, of design these elastic return means 33 in the form of a helical spring arranged longitudinally inside the carriage 7 and acting on a shoe mounted sliding at inside the latter. This shoe is then provided in its part emerging at the transverse end 17A of the carriage 7, hooking means 27 in the form of a horizontal flange 31. Thus, by pushing said shoe and therefore the rim horizontal 31 inside the carriage 7, against the action of the spring, we can ensure the erasure of this horizontal edge 31 on passing the transverse edge 29 of the notching 24. However, according to a preferred embodiment, these elastic return means 33, as shown in the Figures 2 and 3 of the attached drawing, are in the form an elastic blade 34 made integral, through a suitable support 35 from this transverse end 17A of the carriage 7 and whose free end 36 is provided with the rim horizontal 31 defining the attachment means 27. In fact, this elastic blade 34 is so arranged that it allows a displacement, in the longitudinal axis of the carriage 7, of the rim horizontal 31.

So, if it was illustrated in a vertical configuration in figure 2, it is precisely because the carriage 7 has been shown here mounted in the notch 24. In reality, in rest position, i.e. disassembled, this elastic blade 34 will extend, preferably, from the lower part 37 of the carriage 7, where it is made integral with its support 35, inclined away from, substantially, this carriage 7. Thus, to ensure assembly, it is advisable to push this elastic blade 37 towards the end transverse 17A of the carriage 7 to allow the passage of the horizontal edge 31 in front of the transverse edge 29 of notching 24. By releasing said elastic blade 34 once the whole fitted together, said horizontal flange 31 can ensure, fully, its attachment function.

Note that the elastic blade 34 is, preferably, designed in a synthetic material from which results, precisely, its elasticity. In addition, it is advantageously out of molding with the horizontal edge 31 and its support 35 constituting, substantially, the transverse wall 38 of the carriage 7. To this support 35 are thus made integral, by example by crimping, the longitudinal walls 39, 40 of said carriage 7.

As for the attachment means 28 at the transverse end opposite 17 of this carriage 7 and defined, here again, by a flange horizontal 31, they further include a shoe 41 integral a housing 42 disposed between the longitudinal walls 39, 40 forming a spacer. Thus, this housing 42, coming to define, in somehow, the transverse wall of this carriage 7 at height from its transverse end 17, has the threaded orifice 16 in which is inserted the adjusting screw 15 intended to act on the rolling means 8. It will be noted, in this regard, that the mouth 43 of this orifice 16 is of frustoconical shape facilitating the engagement of a tool, such as a screwdriver or wrench for hexagon socket intended to act on said adjusting screw 15.

In fact, the horizontal edge assembly 31, shoe 41 and housing 42 constitutes a single molded plastic part.

In view of the above description and with regard to Figures 2 and 3 of the attached drawing, it will be observed that by resting opening 2 on the guide rail 21, the device bearing 1 engaged in the notching 24, will go back to the inside of section 4 until it rests on the reinforcement metallic 6 or, in the absence of the latter, on another horizontal wall 44 of this profile 4. If this does not in itself pose, no problem, it should be avoided, however, when unhook the sash 2 that the rolling device 1 does not collapses freely until these means of attachment 27, 28 are again supported on the transverse edges 29, 30 of the notching 24. For this purpose, the attachment means 27, 28 are supplemented by retaining means 47 capable of to vertically immobilize said rolling device 1 in the notching 24 of the profile 4. Advantageously, these means retaining (47) are associated with the elastic blade 34 thus than the shoe 41. More precisely, such retaining means 47 are in the form of striations forming a step or a material with a high coefficient of friction, for example a shoe in elastomer equipping the corresponding side 45, 46, respectively to this elastic blade 34 and to this shoe 41 and intended to bear against the transverse edges of notching 24, this in the objective, precisely, to vertically immobilize this rolling device in this notching 24 of the section 4.

Finally, it can be seen that the present invention responds, advantageously, to all the constraints encountered hitherto for fixing a rolling device to the level of a profile constituting the lower cross member of a sliding door.

Claims (9)

1. Rolling device for a sliding leaf (2) of a door, window or the like, including a slide (7) receiving rolling means (8) and aimed at being accommodated in a cut-out (24) provided for in the lower edge (23) of a profile bar (4) defining the lower rail (3) of said leaf (2) which the slide (7) is made integral with through fixing means formed, at each transversal end (17, 17A) of the slide (7), by hooking-in means (27, 28) capable of hooking in onto the transversal edges (29, 30) of the cut-out (24) with a view to impeding said slide (7) from being released, the latter being capable of resting against a metallic reinforcing part (6) or a horizontal wall (44) located in the inner portion (5) of said profile bar (4), characterised in that:

   said hooking-in means (27, 28) are defined by a horizontal rim (31) protruding along the longitudinal axis of the slide (7), this at the level of its transversal ends (17, 17A), at least one horizontal rim (31) being subjected to springy restoring means (33) acting at least in the longitudinal direction of the slide (7) and allowing retracting said hooking-in means (27) in order to authorise the passing through of the latter, by snapping on, and its dismantling ;

   said hooking-in means (27, 28) are completed with retaining means (47) capable of vertically immobilising said rolling device (1) in the cut-out (24) of the profile bar (4) when taking off of the sliding leaf (2), while authorising the slide (7) to rest against said metallic reinforcing part (6) or said horizontal wall (44) located in the inner portion (5) of the profile bar (4), namely when placing the sliding leaf (2) again on its guiding rail (21).
2. Rolling device according to claim 1, characterised in that the springy restoring means (33) are in the form of a helical spring arranged longitudinally inside the slide (7) and acting on a shoe slidably fitted inside the latter, this shoe being provided, at its protruding portion at the transversal end (17) of the slide (7), with hooking-in means (28) in the form of a horizontal rim (31).
3. Rolling device according to claim 1, characterised in that the springy restoring means (33) are in the form of a springy blade (34) made integral, through an adequate support (35), with the transversal end (17A) of the slide (7) the free end (36) of which is provided with the horizontal rim (31) defining the hooking-in means (27), the springy blade (34) being so arranged that it authorises a displacement, along the longitudinal axis of the slide (7), of this horizontal rim (31).
4. Rolling device according to claim 3, characterised in that in resting position corresponding to the dismantled position of said rolling device (1), the springy blade (34) extends from the lower portion (37) of the slide (7), where it is made integral with its support (35), in a slanting way and substantially away from this slide (7).
5. Rolling device according to any of claims 3 and 4, characterised in that the springy blade (34) is made of synthetic material and, preferably, by moulding together with the horizontal rim (31) and its support (35).
6. Rolling device according to any of claims 3 to 5, characterised in that the support (35) substantially forms the transversal wall (38) of the slide (7), with this support (35) being made integral, namely through crimping, the longitudinal walls (39, 40) of the latter.
7. Rolling device according to claim 1, characterised in that the hooking-in means (28) at the opposite transversal end (17) of the slide (7), defined by a horizontal rim (31), include a shoe (41) integral with a casing (42) arranged between the longitudinal walls (39, 40) of the slide (7) while forming a distance piece.
8. Rolling device according to claim 7, characterised in that the horizontal rim (31), the shoe (41) and the casing (42) form one single moulded part of synthetic material.
9. Rolling device according to claims 1, 3 and 7 or 8, characterised in that the retaining means (47) are in the form of grooves forming a set-back or of a material with a high rubbing coefficient, such as a gliding shoe made of elastomer the side (45, 46) corresponding to the springy blade (34) and to the shoe (41), respectively, is provided with and aimed at resting against the transversal edges of the cut-out (24) in order to vertically immobilise this rolling device (1) in the latter.

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