Rolling device for sliding door

Abstract

Sliding Door Bearing Device The invention relates to a sliding door bearing device (10) for a sliding door (4) of a window or door frame (0) movable along a sliding direction (C), said sliding door bearing device (10) comprising at least one carriage (20) having a base (22) provided with at least two support elements (26), and at least two bearing units (28, 29) each connected to the base (22) and provided with a roller (30) as well as a support area (32) bearing against one of the support elements (26), a first bearing unit (28) of the at least two bearing units (28, 29) being coupled to a second bearing unit (29) of the at least two bearing units (28, 29) so as to form a first mechanical linkage (34) connecting the first bearing unit (28) to the second bearing unit (29) and exhibiting at least one degree of freedom. Figure for the abstract: Fig. 2A

Description

Title of the invention: Rolling device for sliding door

[0001] The invention relates to a rolling device for a sliding opening of a joinery, preferably for a sliding opening of the door, window or similar type, as well as a joinery comprising a sliding opening provided with such a rolling device.

[0002] The present invention will find application in the field of building hardware and relates to joinery equipped with a sliding opening. More particularly, it concerns such a rolling device designed to partially fit into a profile of said opening defining the lower rail of said opening.

[0003] Joinery with a sliding sash typically requires, to ensure the sash's mobility relative to a frame, a rolling mechanism generally comprising at least two translation systems, commonly called carriages, and at least one reversible locking system for connecting at least one of the vertical stiles of the sash and the frame. Each carriage generally includes at least one roller running on a rail attached to the lower frame of the sash but may have more rollers, depending on the weight of the sash to be moved. Each carriage is also secured against the lower profile of the sash.

[0004] Most often, at least one of the carriages equipping the sash is height-adjustable to ensure proper alignment of the vertical profiles of the sash and the frame, thus guaranteeing locking by the locking system. Typically, this height adjustment is made via a screw integrated into the carriage or a linkage accessible from the end(s) of the lower rail of the sash.

[0005] However, in the case of a two-roller carriage, an articulation is required due to the inclination of the door leaf caused by the height adjustment of at least one of the carriages. This articulation is generally achieved through a cage carrying two rollers, hinged approximately at its center relative to the carriage housing. This arrangement automatically limits the number of rollers per carriage to two, since beyond two rollers, there will always be at least one roller that does not carry a load, given that a line can only pass through two points (principle of a railway wagon bogie).

[0006] In an inventive approach, the present design makes it possible to overcome the limitation to two rollers per carriage.

[0007] The rolling device according to the invention is intended to equip a sliding opening of a joinery, preferably a sliding opening of the door, window or similar type. Said sliding opening is capable of being moved along a sliding direction. Said device comprises at least one carriage including a base provided with fastening means allowing the carriage to be fixed to a profile of said opening defining the lower rail of said opening and provided with at least two support elements, and at least two rolling units each connected to the base and provided with a roller mounted to rotate freely about an axis of rotation as well as a bearing area bearing against one of the support elements.A first bearing unit, among the at least two bearing units, is coupled to a second bearing unit, among the at least two bearing units, so as to form a first mechanical link connecting the first bearing unit to the second bearing unit and having at least one degree of freedom.

[0008] The rolling device according to the invention can be easily adapted to support different openings of different size and / or weight(s).

[0009] According to one possibility, the first mechanical link has a degree of freedom allowing the first rolling unit to tilt relative to the second rolling unit around a pivot axis, the pivot axis preferably extending in a direction that is parallel to the axis of rotation and / or orthogonal to the sliding direction.

[0010] Preferably, the rolling units are aligned one behind the other along a direction that is essentially parallel to the sliding direction and / or orthogonal to the axis of rotation and / or orthogonal to the axis of pivoting.

[0011] According to one possibility, the support zone comes to rest against one of the support elements to form a second mechanical connection having at least one degree of freedom.

[0012] According to a possible additional feature, the carriage includes an adjustment element allowing adjustment of the gap between the base and the rolling units in a first adjustment direction which is parallel to the sliding direction and / or a second adjustment direction which is orthogonal to the sliding direction and / or orthogonal to the axis of rotation.

[0013] According to one variant, the adjusting element comprises an adjusting screw extending essentially in a direction that is parallel to the sliding direction.

[0014] According to a preferred variant of the rolling device, the support area comes into contact with one of the support elements independently of an inclination of the rolling unit provided with this same support area.

[0015] Preferably, the support area and / or the support elements have at least one vaulted surface.

[0016] According to a preferred embodiment, each rolling device is provided with a single rolling roller.

[0017] According to a possible additional feature, the base comprises a plurality of sections connected to each other, at least two of the sections among the plurality of sections each being provided with one of the support elements.

[0018] The invention further relates to a joinery comprising a sliding opening, preferably a sliding opening of the door, window or similar type, comprising at least one profile defining the lower crossbar of said opening and a rolling device according to the invention, the means of fixing the base of the rolling device being fixed to the profile.

[0019] Other objects and advantages of the present invention will become apparent during the following description, relating to three embodiments.

[0020] Understanding this description will be facilitated by referring to the accompanying drawings in which:

[0021] [Fig-1] is a schematic representation of a joinery in the form of a window equipped with a locking system for sliding joinery according to the examples of implementation;

[0022] [Fig.2A] is a schematic perspective representation of the rolling device according to a first example of embodiment;

[0023] [Fig.2B] is a schematic representation of a cross-section of the bearing device according to the first embodiment example;

[0024] [Fig.3A] is a schematic perspective representation of the rolling device according to a second embodiment;

[0025] [Fig.3B] is a schematic lateral representation of the rolling device according to the second embodiment;

[0026] [Fig.3C] is a schematic representation viewed from above of the rolling device according to the second embodiment;

[0027] [Fig.4A] is a schematic perspective representation of the rolling device according to a third embodiment;

[0028] [Fig.4B] is a schematic lateral representation of the bearing device according to the third embodiment; and

[0029] [Fig.4C] is a schematic representation viewed from above of the rolling device according to the third embodiment.

[0030] As shown in the figures of the accompanying drawings, the present application relates to a roller device 10 for a sliding opening 4 of a joinery 0, preferably for a sliding opening of the door, window or similar type. Said sliding opening 4 is capable of being moved along a sliding direction C. The said rolling device 10 comprises at least one carriage 20 including a base 22 provided with fastening means 24 for attaching the carriage 20 to a profile 6 of the opening 4 defining the lower cross member of the opening 4 and provided with at least two support elements 26, and at least two rolling units 28, 29 each connected to the base 22 and provided with a roller 30 mounted to rotate freely about an axis of rotation R and a bearing area 32 bearing against one of the support elements 26. A first rolling unit 28 of the at least two rolling units 28, 29 is coupled to a second rolling unit 29 of the at least two rolling units 28, 29 so as to form a first mechanical connection 34 linking the first rolling unit 28 to the second rolling unit 29 and having at least one degree of freedom.

[0031] This application also relates to a joinery 0 comprising a sliding opening 5, preferably a sliding opening of the door, window or similar type, having at least one profile 6 defining the lower rail of said opening 5 and a rolling device 10 according to this application. The fastening means 24 of the base 22 of the carriage 20 of the rolling device 10 is fixed to the profile 6.

[0032] As shown in [Fig. 1] of this application, the joinery 0 can be equipped with locking means 1 and at least one operating means, such as a motor or an operating handle 4. The sliding direction C corresponds to a horizontal opening movement of the leaf 5. The sliding direction C is ensured by means of the carriage(s) 20 forming part of the rolling device 10 rolling on one or more rails 12 integrated or attached to a cross member 8 of a frame 7 of the joinery 0.

[0033] The locking means 1 may also be provided to collaborate with at least one trolley 20 of the rolling device 10 so as to ensure the adjustment and / or lifting and lowering of the leaf 5 under the action of the operating means 4 and in a vertical direction Y, mainly oriented in the direction of the weight of the leaf 5.

[0034] The first mechanical link 34 may have a degree of freedom allowing the first rolling unit 28 to tilt relative to the second rolling unit 29 around a pivot axis P, the pivot axis P extending preferably in a direction that is parallel to the axis of rotation R and / or orthogonal to the sliding direction C.

[0035] The rolling units 28, 29 can be aligned one behind the other along a direction which is essentially parallel to the sliding direction C and / or orthogonal to the axis of rotation R and / or orthogonal to the pivot axis P.

[0036] The support zone 32 can come to rest against one of the support elements 26 to form a second mechanical link 36 having at least one degree of freedom.

[0037] The carriage 20 may include an adjustment element 38 allowing adjustment of the gap between the base 22 and the rolling units 28, 29 in a first adjustment direction which is parallel to the sliding direction C and / or a second adjustment direction which is orthogonal to the sliding direction C and / or orthogonal to the axis of rotation R.

[0038] The support area 32 can bear against one of the support elements 26 independently of an inclination of the rolling unit 28, 29 provided with this support area 32.

[0039] The support area 32 and / or the support elements 26 may have at least one vaulted surface 27.

[0040] Each bearing unit 28, 29 can be provided with a single bearing roller 30.

[0041] The first bearing unit 28 among the bearing units 28, 29 can be designated as the main bearing unit and the second bearing unit 29 among the bearing units 28, 29 as well as any additional bearing units can be designated as auxiliary bearing units.

[0042] The main bearing unit 28 can be coupled to one or more auxiliary bearing units 29, placed in series with each other or following the main bearing unit. The auxiliary bearing units 29 can have at least two contact areas 40, 42 with the main housing: a first contact area 40 allows the auxiliary housing(s) to be positioned relative to the main housing and / or the base 22 in the sliding direction C; the second contact area 42 is formed by the support area 32 and / or the support elements 26 and allows the base 22 and / or the main bearing unit to transfer a height adjustment command to the auxiliary bearing units. In particular, these two contact areas 40, 42 are independent of the inclination of each rolling unit 28, 29 relative to the rail 12 and / or the lower profile 6 of the opening 0.Each auxiliary bearing unit being equipped with a single roller 30, it is therefore capable of tilting and of independently transferring the height adjustment command to any subsequent bearing units. The immediate advantage of such a design is to streamline the manufacture of the locking systems to reduce costs, and to allow a greater number of bearing units placed in series, thus better matching the number of rollers 30 to the load.

[0043] In a first embodiment shown in Figures 2A and 2B, the base 22 of the carriage 10 receives the adjusting element 38. The adjusting element 38 may include an adjusting screw 39, engaging with a connecting rod 41, itself articulated on the first bearing unit 28 corresponding to the main bearing unit. This first bearing unit 28 corresponding to the main bearing unit has at least one oblong recess 44, inclined with respect to the direction of neck bearing unit C and accommodating a projection 46 linked to the base 22. The second bearing unit 29 and / or the auxiliary bearing unit(s) may also have at least one such oblong recess 44, inclined with respect to the sliding direction C and accommodating an additional projection 46 linked to the base 22. The main bearing unit and / or the first bearing unit 28 is connected to at least one auxiliary bearing unit and / or to the second bearing unit 29 through the first mechanical linkage 34, capable of driving the auxiliary bearing unit and / or the second bearing unit 29 along the sliding direction C.Each of the rolling units 28, 29 also has the support area 32 which together with one of the support elements 26 forms the second contact area, allowing an angular movement of each rolling unit 28, 29 substantially about the pivot axis P, perpendicular to the sliding direction C and to the main plane of the opening 5. Finally, each rolling unit 28, 29 accommodates a single rolling roller 30.

[0044] In the second embodiment shown in Figures 3A to 3C, a set of inclined slopes 48 replaces the oblong reservoir 44 and tabs 50 replace the protrusions 46 provided in the first embodiment shown in Figures 2A and 2B. Furthermore, the single base 22 is subdivided into at least two sections 23. In particular, the rolling units 28, 29 are provided to be clipped onto the base 22 and / or the sections 23, for example by clipping the set of inclined slopes 48 onto the tabs 50, and the connections formed at the level of the second contact zone 44 can be engaged or retracted without tools or a through pin, which makes the carriage 20 particularly simple to assemble and install.

[0045] In the third embodiment, the rolling units 28, 29 and the base 22 are provided to be made from flanges 52 connected by spacers 54. Furthermore, on the one hand, the support elements 26 are made by connecting rods 56 articulated on the base 22 and, on the other hand, the bearing areas 32 on the rolling units 28, 29 are formed by a bore 58.

[0046] In summary, whatever the embodiment chosen, it is possible to vary the number of rolling units 28, 29 between one unit and at least three units, while maintaining a single height adjustment point for all the rolling units 28, 29, and an angular adaptation of each rolling unit 28, 29 to the inclination between the opening and the rail 12.

Claims

Claims

1. Rolling device for a sliding opening (4) of a joinery (0), preferably for a sliding opening of the door, window or similar type, said sliding opening (4) being capable of being moved along a sliding direction (C), said rolling device (10) comprising at least one carriage (20) comprising a base (22) provided with fixing means (24) allowing the fixing of the carriage (20) to a profile (6) of said opening (4) defining the lower crosspiece of said opening (4) and provided with at least two support elements (26), and at least two rolling units (28, 29) each connected to the base (22) and provided with a rolling roller (30) mounted freely in rotation about an axis of rotation (R) as well as a support zone (32) bearing against one of the support elements (26), a first rolling unit (28) among the at least two rolling units (28,29) being coupled to a second rolling unit (29) among the at least two rolling units (28, 29) so as to form a first mechanical connection (34) connecting the first rolling unit (28) to the second rolling unit (29) and having at least one degree of freedom, characterized in that the first mechanical connection (34) has a degree of freedom allowing tilting of the first rolling unit (28) relative to the second rolling unit (29) about a pivot axis (P), the pivot axis (P) preferably extending in a direction which is parallel to the axis of rotation (R) and / or orthogonal to the sliding direction (C).,

2. Rolling device according to claim 1, characterized in that the rolling units (28, 29) are aligned one behind the other along a direction which is essentially parallel to the sliding direction (C) and / or orthogonal to the rotation axis (R) and / or orthogonal to the pivot axis (P).

3. Rolling device according to any one of claims 1 to 2, characterized in that the support zone (32) comes to bear against one of the support elements (26) to form a second mechanical connection (36) having at least one degree of freedom.

4. Rolling device according to any one of claims 1 to 3, characterized in that the carriage (20) comprises an adjustment element (38) for adjusting the gap between the base (22) and the rolling units (28, 29) in a first adjustment direction which is parallel to the sliding direction (C) and / or a second adjustment direction which is orthogonal to the sliding direction (C) and / or orthogonal to the axis of rotation (R).

5. Rolling device according to any one of claims 1 to 4, characterized in that the support zone (32) bears against one of the support elements (26) independently of an inclination of the rolling unit (28, 29) provided with this support zone (32).

6. Rolling device according to any one of claims 1 to 5, characterized in that the support zone (32) and / or the support elements (26) have at least one arched surface (27).

7. Rolling device according to any one of claims 1 to 6, characterized in that each rolling unit (28, 29) is provided with a single rolling roller (30).

8. Rolling device according to any one of claims 1 to 7, characterized in that the base (22) comprises a plurality of sections (23) connected to each other, at least two of the sections (23) among the plurality of sections (23) each being provided with one of the support elements (26).

9. Joinery comprising a sliding opening (5), preferably a sliding opening of the door, window or similar type, comprising at least one profile (6) defining the lower crosspiece of said opening (5) and a rolling device (10) according to any one of claims 1 to 8, the fixing means (24) of the base (22) of the carriage (20) of the rolling device (10) being fixed to the profile (6).

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