Mechanism for the hanging of sliding doors

Abstract: Mechanism for the hanging of sliding doors, comprising an upper, horizontal track (1) along which a carriage having a chassis (9, 33, 40) from which the sliding door (15) hangs. This track (1) also includes buffers (17) to restrict the trajectory. A cross section of the track shows a central, curved track (2) which has a curve radius greater than that of the wheels (3) and two straight, divergent parts (20, 21). The axle (8) of the plastic material, being situated between the wheels and the chassis (9, 33, 40). The buffers (17) consist of U-shaped bodies (22), which can be attached to the track (1), and extensions (26) serving the purpose of reinforcing said track (1). The chassis includes levelling devices (13, 36, 48).

Description: This invention refers to a mechanism for the hanging of sliding doors, with particular relevance to sliding doors/blinds and similar items. Mechanisms already exist for the hanging of sliding doors, consisting of an upper, horizontal profile, situated above the space to be closed off and covering the whole length of its upper edge. This profile contains revolving components which have a sideways trajectory along its entire length. These revolving components consist of one or more wheels, with axle chassis which are visible on the outside of the profile. The door panel(s) hang from this chassis, either directly attached to this or via vertical bolts. In order to ensure that the panels hang vertically, thereby avoiding that they swing from side to side, guides are present at the bottom, to keep the lower edge of the panels in place. U.S.A. patent nr. 3289243 shows a mechanism for the hanging of sliding doors according to the preamble of claim 1 which comprises an upper horizontal profile with an inverted "L" section, a track directed inward extending from the vertical leg of the "L", with a "J" form, forming a track along which roll the revolving components which have an axis mounted on a chassis from which hang the sliding door, said track having a cross-section with a curved part situated between two divergent straight tracks. The invention relates to a mechanism for the hanging of sliding doors, comprising an upper, horizontal profile with an inverted "L" shaped section, an inward facing track extending from the end of the vertical branch of the "L", producing a "J" shaped section, this track forming a longitudinal revolving-component-path along which revolving-components move, the axle of these revolving components having a chassis from which the sliding door hangs, the cross-section of the revolving-componets-path shows a central, curved track, the inward bend facing upwards, situated between two divergent, straight tracks on either side, characterized in that the curved track has a curve radius and a width greater than that of a the rolling surface of a wheel of the revolving components, that the upper horizontal profile is assembled on fixed supports situated immediately above the space to be closed off by the door, that attached to the axles of the revolving components there is a plastic, separating ring, located between the wheel and the chassis, that the upper horizontal profile includes buffers to restrict the trajectory of the revolving components, these buffers comprise one grooved piece, one of the walls of which has threaded openings to accept tension screws and two extensions at its transversal edges, bent outwards forming an angle slightly greater than 90° with the above mentioned wall, these extensions being slightly divergent and having reinforcement ribs (shutters) for the purpose of strengthening the assembly and pointed teeth at the free, transversal edge, the grooved piece gripping the revolving component path of the upper, horizontal profile, the extensions and wall of which they form a part taking up a position inside the profile whilst the other wall is positioned below the revolving component path, the extensions being of such a height that when they come to rest on the internal surface of the horizontal branch of the upper, horizontal profile, by means of the teeth on their free, transversal edge, on tightening the screws on the internal surface of the said revolving component path, the wall of this grooved piece running underneath the revolving component path, comes to rest on the external surface of this path, each extension having central pieces made of elastic material which project outwards in between the reinforcement ribs (shutters) This invention, as outlined in the patent claims, is described below in detail, making reference to the attached drawings in which possible ways of putting the invention into practice are shown, these being given by way of example only. Figure 1 is a front elevational view of a mechanism built in accordance with the invention. Figure 2 is a profile view of the mechanism shown in figure 1. Figure 3 is similar to figure 1, showing another possibility with respect to the chassis of the revolving components. Figure 4 is a profile view of figure 3. Figure 5 is similar to figure 1, showing a third possibility with respect to the chassis of the revolving components. Figure 6 is a cross section of the mechanism shown in figure 5, including the fixed supports on which the upper, horizontal profile is mounted (see VI-VI). Figure 7 is a cross section, on a larger scale (see VII-VII in figure 1). Figure 8 is a cross section of the chassis of the revolving components (see VII-VII in figure 1). Figure 9 is a view from above of the chassis plate shown in figure 3. Figure 10 is a cross ssection of the X-X lines shown in figure 9. Figure 11 is a view from above of the chassis of the mechanism shown in figure 5. Figure 12 is a cross section of the XII-XII line shown in figure 5. Figure 13 is a view from above of the trajectory restricting mechanism shown in figure 1. Figure 14 is a view from above of one of the track buffers. Figure 15 is a cross section of the ducting support components. Figure 16 is a front, elevational view of the ducting support components. Figure 17 is a view from above of the ducting support components. The mechanisms shown in figures 1 and 2, consists of an inverted "L" shaped profile (1), of which the vertical branch tops out into an inwards facing track (2) with an upper channel in which the wheels (3) of the revolving components can rest or move along. The profile (1) is assembled, ideally, immediately above the space to be closed off by the doors and at the facade (4) which delimits the space, by means of fixed supports (5) in the form of a bracket, one of the wings of which is joined to the facade (4) by means of screws (6). The other branch is joined to the horizontal branch of the profile (1), these being fixed to one another by means of screws (7). The above mentioned revolving components each have a wheel (3) with a vertical plate (9) located at the axle (8). At the upper edge of this plate there is a stamping (10 in figure 8) at the base of which there is an opening (11) via which the axle (8) can be inserted and fixed. The concave side of the stamping (10) faces outwards, this gap being occupied by the axle head (8), as shown in figure 2. At the centre of the plate (9), there is a pivot (12) joining this to the door. On either side of this central pivot (12), there are two curved, oblong openings (13), concentric to the pivot (12), through which the screws (14) are inserted (figure 2), fixing this to the door. As shown in figure 1, the plate (9) has, in addition, three openings (16), the purpose of which will be explained below. End buffers (17) are mounted to the upper, horizontal profile, these restricting the trajectory of the revolving components and, in turn, the course of movement of the doors (15). In addition, the doors (15) have a trajectory restricting device (18), this being situated on the same surface as the plate (9) of the revolving components. A cross section of the fluting (2) of the upper, horizontal profile (1), - see figure 7 - shows an intermediate, curved track (19), the bend facing upwards, this being contained between two divergent, end tracks (20 and 21). The curve of this intermediate track (19) has a radius and a width slighting greater than that of the rolling surface of the wheels (3). In this way, the wheels can move along without any contact or rubbing with the side tracks (20 and 21), thereby ensuring that noise is not caused when they move along the upper, horizontal profile. The buffers (17) - see figures 1 and 7 - comprise a grooved piece (22) having an intermediate, transversal deformation (23) for reinforcement purposes. The grooved piece is situated in such a way that it grips the fluting or path of the revolving components of the upper, horizontal profile, one of its walls being situated inside this profile. This wall has two threaded openings (24), through which two screws (25) are inserted, these coming to rest and being tightened upon the interior surface of the central track (19) of the path of the revolving components. In addition, the transversal sides of this upper wall of the grooved piece (22), have extensions bent outwards to form an angle of approximately 90°, the two extensions being slightly divergent as shown in figure 1. The free edge of the extensions (26) top out into pointed teeth (27). In addition, the pats have reinforcement ribs (shutters) (26a) and a central opening (28) into which elastic material is introduced (29). The extensions (26) are of such a height that when the screws (25) are tightened and the pointed teeth (27) come to rest and are tightened on the internal surface of the horizontal branch of the profile (1), the lower wall of the grooved piece (22) comes to rest on the external surface of the central track (19) of the path of the revolving components, in this way ensuring that the buffers (17) are completely anchored to the profile (1) and, in turn, reinforcing this profile. The trajectory restricting device (18) - see figures 1 and 13 - comprises a plate in which a cut is made to form an extension (30), this being bent at right angles to and facing towards the inside of the profile (1) so that when the door (15) is moved as far as possible to the side, it hits against the elastic substance (29). In addition, it has a pivot (30a) so that the wood absorbs the shock. As shown in figure 2, the vertical branch of the brackets which form the fixed supports (5), has a lower track (31), curved inwards, on top of which the vertical branch of the profile (1) is supported. The heads of the support fixing screws (6) are absorbed by this track. Figures 3 and 4 show brackets (5) in the reverse position, whereby the vertical branch of the upper, horizontal profile comes to rest on the surface of the facade (4) on which this profile is mounted. The revolving components of the mechanisms shown in figures 3 and 4 include a bracket (33) which is fixed to the plate (9) via one of its branches, whilst the other branch rests on the upper edge of the door (15), to which it is fixed by means of screws (34). As shown in figures 3, 4, 9 and 10, the bracket (3) has a central opening (35) in the vertical branch which can be joined to the plate (9), it being possible for this opening to take up a position opposite the central pivot (12) of the plate (9). There are another three openings (36) around this former opening, and these can take up a position opposite the third opening (16) of the plate (9). The two upper openings (36) are curved, oblong and concentric to the orifice (37). The transversal borders of the vertical branch of the bracket (33) have extensions (39), one of which is bend outwards, facing towards the inside of the upper, horizontal profile (1), so that it acts as a support against the elastic substance (29) of the buffers (17) when the door is moved aside as far as possible. The oblong opening (13) of the plate (9) - see figure 1 - allows for possible levelling variations or errors to be compensated for whilst hanging the door (15). This is also the case with respect to the oblong screw holes (36) of the bracket (33), this latter being fixed firstly to the door (15) and once levelled out, the screws (37) being tightened. The screws (27 and 38) situated on the horizontal branch of the bracket (33) enable the door and the upper, horizontal profile (1) to be positioned perfectly parallel to each other. The example shown in figures 3 and 4 is the same as that shown in figures 1 and 2 and the same reference numbers are used to show identical components. In the example shown in figures 5 and 6, each revolving component has two wheels (3). The chassis of these revolving components in made up of a vertical plate (40) which has two upper openings (41), separated from each other by a distance greater than the diametre of the wheels (3). The ends of the wheel axles are fixed in these openings. On either side of the opening (41), the plate (40) has projections which are bent backwards at right angles to form extensions (42) on either side of the wheel (3). These extensions (42) form props for the elastic material (29) of the buffers (17), to restrict the trajectory of the revolving components and, therefore, the door. At the lower part of the plate (40) there is a central window (43) which delimits, together with two side edges of the plate, tracks (44) which, with two consecutive slits, go backwards towards the lower border (45) situated below the upper, horizontal profile (1). This lower border (45) has an intermediate, cylindrical shape of vertical axis, on top of which a semi-clevis (46) is attached (see figure 5) by means of screws (47), so that a vertical bolt (these are already in existence) can be attached between these two components, from which the door (15) hangs. In figure 6, the fixed supports on which the upper, horizontal profile (1) is assembled, consist of a bracket (49) with flat branches, and to the outside of one of these an iron plate (50) is fixed by means of, for example, rivets (51). This iron plate extends underneath the bracket, the free, transversal border of this extension having a transversal structure (52) in the form of a hook which grips the channel or path of the revolving components (2) of the profile (1) from the outside. This structure (52) is separated from the horizontal branch of the bracket (49) by a distance approximately equal to the height of the profile (1). The overhanging branch of the bracket (49) is longer than the horizontal branch of the profile (1). In addition, this overhanging branch of the bracket (49) has an intermediate extension (53) formed by means of cuts, this being counter-sunk downwards to form an extension and between this and the above mentioned overhanding branch, the horizontal track of the upper, horizontal profile is introduced. The overhanging branch of the bracket (49) also has a third hole through which a screw (54) is introduced, to support and be tightened on the horizontal branch of the profile (1), in this way enabling for this to be completely supported, whilst being reinforced due to the shape of the support. The revolving components (see figure 6) include a plastic washer (55) which is mounted on the wheel axle (3 and 8), between the wheel bearing and the plate forming the chassis of the revolving components. In this way, size variances during manufacture are compensated for, providing for adjustment control and ensuring that vibration does not occur during use. As shown in figure 4, there is a tunnel (56) which conceals the mechanism, mounted by means of brackets (57) as shown in figures 15 to 17. These brackets have longitudinal structures (58) allowing for them to be attached to the bracket (5), their branches being of varying lengths. From the transversal folds (59), rectangular windows (60) are made in these branches at the base of which there is a circular notch (61) of more than 180°, the outlet of which is partly closed off by rounded projections (62). The bracket branches also have an opening (63) through which a screw (7) is introduced (see figure 4), fixing this to the profile (1) and bracket (5). Due to the fact that the two branches of the bracket are of different lengths, the distance between the unfixed branch/tunnel (56) and the mechanisms will vary depending on which branch is fixed to the profile (1). The tunnel is attached to the vertical branch of the bracket by means of bushes (64) - see figure 15 - these having a conical head (65) and a cylindrical projection (66) with a diametre approximately equal to that of the notch (61). These bushes are attached to the tunnel (56) and, in turn, are slipped into the notches (61) by asserting a light pressure on the narrower part defined by the projections (62). The longitudinal edges of both branches of the bracket also have extensions (67) which will come to rest on the longitudinal borders of the bracket (5) on which the profile (1) is mounted. As indicated above, at the bottom of the doors (15) there are guides to avoid tilting.

Claims: Mechanism for the hanging of sliding doors (15), comprising an upper, horizontal profile (1) with an inverted "L" shaped section, an inward facing track (2) extending from the end of the vertical branch of the "L", producing a "J" shaped section, this track (2) forming a longitudinal revolving-component-path along which revolving,'components move, the axle (8) of these revolving components having a chassis from which the sliding door (15) hangs, the cross-section of the revolving-components-path shows a central, curved track (19), the inward bend facing upwards, situated between two divergent, straight tracks (20,21) on either side, characterized in that the curved track (19) has a curve radius and a width greater than that of a the rolling surface of a wheel (3) of the revolving components, that the upper horizontal profile (1) is assembled on fixed supports (5) situated inmediately above the space to be closed off by the door (15), that attached to the axles (8) of the revolving components there is a plastic, separating ring (55), located between the wheel (3) and the chassis, that the upper horizontal profile (1) includes buffers (17) to restrict the trajectory of the revolving components, these buffers comprise one grooved piece (22), one of the walls of which has threaded openings (24) to accept tension screws (25) and two extensions (26) at its transversal edges, bent outwards forming an angle slightly greater than 90° with the above mentioned wall, these extensions (26) being slightly divergent and having reinforcement ribs (26a) (shutters) for the purpose of strengthening the assembly and pointed teeth (27) at the free, transversal edge, the grooved piece (22) gripping the revolving component path of the upper, horizontal profile (1), the extensions (26) and wall of which they form a part taking up a position inside the profile whilst the other wall is positioned below the revolving component path, the extensions (26) being of such a height that when they come to rest on the internal surface of the horizontal branch of the upper, horizontal profile (1), by means of the teeth (27) on their free, transversal edge, on tightening the screws (25) on the internal surface (2) of the said revolving component path, the wall of this grooved piece (22) running underneath the revolving component path, comes to rest on the external surface of this path, each extension (26) having central-pieces (29) made of elastic material which project outwards in between the reinforcement ribs (26a) (shutters). Mechanism according to claim 1, characterised by the fact that the revolving components comprise only one wheel (3), the chassis of these components being made up or a flat,vertical plate (9) which can be attached and fixed to one of the vertical surfaces of the door or panel (15), this plate having an upper, off-centred in laid piece (10), with the curve facing the door or panel (15), at the base of which there is an opening (11) through which the wheel axle (8) is fixed; a central pivot (12) which can be hinged to the door; two lower, curved oblong openings (13) symmetrical and concentric to the central pivot (12); and three screw holes (16), one of which is situated between the oblong openings (13) beneath the central pivot (12) whilst the other two are symmetrical and above the mentioned oblong openings (13), on either side of the central pivot (12). Mechanism according to claim 2, characterised by the fact that a flat branched bracket (33) is fixed to the above mentioned plate (9) one of the branches of which has a central opening (35) which can be positioned opposite the central pivot (12) of the plate (9), and three-openings (36) which can take up a position opposite the screw holes (16) of this plate (9) so that fixing screws can be introduced, the two upper openings (36) having a curved, oblong shape, concentric to the central opening (37), whilst the other branch of the bracket (33) is attached to the upper edge of the door or panel (15) and has three, unaligned openings (37, 38), with oblong, curved ends, concentric to the intermediate one (37), through which screws (34) are introduced to fix it to the door edge. Mechanism according to claim 1, characterised by the fact the revolving components have two wheels (3) and that the chassis of these components is made up from a vertical plate (40) with two upper openings (41), separated from each other by a distance greater than the diametre of the wheels (3), into which the ends of the wheel axles are fixed, whilst on the underside it forms, underneath an intermediate window (43), a central semi-cylindrical track of vertical axis, located outside the place of the plate, to which a semi-clevis (46) is attached and fixed on a vertical bolt (48) from which the door (15) will hang. The sides of the plate have extensions (42) which bend at right angles in the same direction towards the convex edges of the mentioned semi-cylindrical track, these extensions acting as shock absorbers against the elastic material (29) of the buffers (17). Mechanism according to claim 2, characterised in that it includes a trajectory restricting device (18) situated on the outside of the revolving components, said trajectory restricting device consisting of a plate provided with a pivot (30a) coplanar to the chassis of the revolving components, which is attached and fixed to the surface of the door or panel (15) to which the chassis is formed, by means of a cut parallel to its edge, an extension (30), which is perpendicularly folded towards the interior of the upper horizontal profile and rests against the elastic substance (29) of the buffers (17) at the end position of the door or panel. Mechanism according to claim 1, characterised by the fact that the fixed supports (5) on which the upper, horizontal profile (1) is mounted are made up of flat branched brackets, one of the branches of which is attached transversally to the outside surface of the horizontal branch of the upper, horizontal profile (1) and has a longitudinal, oblong opening through which a fixing screw (7) is introduced, whilst the other branch has a transversal, oblong opening through which a screw (6) is introduced to fix it to the facade (4) which delimits the space to be closed off by the door (15). Mechanism according to claim 1, characterised by the fact that the fixed support on which the upper, horizontal profile (1) is mounted, consists of a flat branched bracket (49), an iron plate A (50) being attached to the outside of one of the branches, extending past the other branch so that this extension of the free, transversal border becomes a transversal structure in the form of a hook (52), with the curve facing the bracket, having an outline the same as that of the outside of the part of the upper, horizontal profile (1) which forms the revolving component path, this being separated from the overhanging branch of the bracket (49) by a distance approximately equal to the height of the section of the upper, horizontal profile (1),the overhanging branch of the bracket (49) has a length greater than the width of the horizontal track of the upper, horizontal profile (1) and is equipped with a device to support this horizontal track. Mechanism according to claim 7, characterised by the fact that the support devices of the overhanging branch of the bracket comprise an intermediate extension (53) of this branch, formed by means of cutting and hammer work, projecting from the lower surface of this, parallel to the side surface and facing backwards, separated from this lower surface by a distance slightly greater than the width of the horizontal track of the upper, horizontal profile (1), to allow for insertion of the free, longitudinal edge of this track, the overhanging branch of the bracket also has a threaded opening situated between the other branch and the above mentioned extension, through which a screw (54) is introduced from above, this being tightened on the horizontal track of the upper horizontal profile (1). Mechanism according to claim 1, which enables a concealment tunnel (56) to be attached by means of brackets (57) fixing this to the upper, horizontal profile (1) by one branch, the other branch taking up a vertical position so that the tunnel (56) can be attached to the assembly; characterised by the fact that the two branches of the brackets (57) are of different lengths and each has rectangular, intercommunicating windows (60) at the fold or transversla angle (59) which form, at the edge parallel to the fold, a circular notch, greater than 180°, the outlet of which is partly closed off towards the mentioned window, this notch (61) allowing for the insertion of pivots or bushes (64) which are anchored to the tunnel (56), these having a cylindrical furrow (66) with a diametre approximately equal to that of the mentioned notch.

Inventors: TARREGA I LLORET MIGUEL ANGEL, TARREGA I LLORET, MIGUEL ANGEL
Applicants: KLEIN IBERICA, KLEIN IBERICA, S.A.
Application year: 1990
Main classification: E05D15
IPC codes: E05F5, E05D15