EP3585967B1 - Floor guide - Google Patents

Description

The subject matter of the invention is a floor guide for single or multi-track sliding door systems according to the preamble of patent claim 1.

Sliding doors require rails in the floor to absorb the load, which can be up to several 100 kilos in the case of large sliding doors. The desire for a clear view and lots of light in the room means that sliding doors with very narrow frames are often installed today so that the clear cross-section remains as large as possible. With such sliding doors and with sliding doors in general, the running rails are sunk into the floor. As a result, the transition from the inside of the room to the outside of the room is level and therefore trip-free. Large-area sliding doors require, corresponding to their mass, load-bearing elements with large dimensions, ie rollers on which the sliding doors are supported and can be easily moved. Running rails or guide rails for such drives, which are arranged sunk under the sliding doors in the floor, have a relatively large width in order to be able to distribute the high load on the rail, whereby the gap in the floor is correspondingly wide and consequently to a can become a stumbling block. In addition, the thickness of sliding doors with triple glazing is very large.

Floor guides are now known from the prior art, with which the gap width over the rails is kept as small as possible. On the one hand, the sliding door is not guided down into the floor and supported over its entire thickness, but only via a central foot, which widens at the bottom like an upside-down "T" and slides underneath on rollers. In such known devices, the gap width is very narrow and consequently not optically disturbing, because the gap width depends on the small thickness of the vertically running section of the "T's". However, the problem now arises that e.g. with double guides, i.e. with one, two or more guides next to each other for one, two or more parallel sliding doors, access to the roller bearings, running gear or rails, depending on the version, is blocked by permanently installed floor coverings such as For example, stone or wood slabs prevent the rollers, running gear or rails from being lifted out during maintenance work.

With known floor guides, the central strip-shaped section of the floor covering, which is arranged between two guide incisions, can be lifted out and the rails of the floor guide can thus be partially exposed. However, overlap at In such an embodiment, the floor coverings arranged at the side of the floor guides prevent the interior of the floor guide and the lifting of the running gear or roller bearings. So there is nothing left but to remove the permanently installed floor coverings on the side of the gap if one of the roller bearings fails. This leads to high costs and, in many cases, to a change in the overall appearance of the floor covering in the area of the sliding doors that is no longer visually acceptable.

From the KR 2012 0119 728 a sliding door system has become known in which the frames of the two parallel sliding doors are arranged partially sunk in a guide channel on roller running gears, the rollers of which run on the sides of the surfaces of the sliding doors. In order to be able to install such sliding doors during installation and to be able to remove them from the guide channels for inspection or maintenance work, the area of the floor that is usually covered with floor coverings made of wood or stone is designed to be removable. This means that in the area of two sliding doors, three strip-shaped floor elements have to be removed during an inspection. Such a construction is aesthetically undesirable, since the three strip-shaped floor areas running parallel to the sliding doors over their entire length spoil the overall impression of the floor disadvantage. It is true that with this device the revision of wide roller bearings is possible to the detriment of aesthetics.

From the DE 11 2013 002 333 T5 a sliding door assembly is known which supports the sliding doors on a very narrow web and rollers. However, when using triple glazing, the slot required in the floor is wider than desired. In order nevertheless to make the sliding doors removable for inspection work, this document proposes making the floor areas on the side of the sliding doors removable. This in turn leads to aesthetically unsatisfactory strip-shaped floor elements, which worsen the overall impression of the floor when the sliding door is open and also when the sliding door is closed.

Also in the further known KR 2012 0045 759 a sliding door arrangement with two parallel sliding doors is known. In order to be able to inspect these, the central floor area between the sliding doors can be lifted out. Since the supporting rollers are above the floor surface in this sliding door arrangement, their maintenance is unproblematic.

In the case of the last three sliding door arrangements, too, unaesthetic, strip-shaped floor elements are necessary in order to be able to maintain or repair roller bearings arranged below the floor surface.

From the WO 2014/121350 a guide arrangement for sliding doors with rollers sunk into the floor is also known. In this device, the sliding door does not rest on a double T-shaped element, but the width of the gap in the floor corresponds to the width of the sliding door and, in addition, to the width of the lateral sealing elements. The space between the two guide rails is formed by a fixed element, since this does not have to be removed for maintenance work on the sliding door. The aesthetic appearance is very unsatisfactory here.

Next is from the WO 2015/028751 discloses a guide arrangement for two sliding doors guided in parallel, in which the central area is designed to be liftable for maintenance work and thus the connecting straps between a conveyor belt on which the sliding doors rest and the lower edge of the sliding door can be lifted out. The intermediate piece, which can be lifted out, can be latched into a rail with its foot. Since intermediate pieces are also loaded by people and other heavy elements such as castors from garden furniture or wooden chairs, this configuration is not sufficient. In addition, isolation from the surrounding parts of the guide arrangement, which is made of aluminum, is not possible.

From the JP 2014-156217 a floor guide for movable barrier elements is also known, in which no T-shaped feet have to be removed from the area under the floor surface.

It is similar with the EP 2 500 225 , in which also sliding shut-off elements can be moved on rollers. However, with these arrangements, no aesthetic floor covering has to be removed when the drives are revised, only the intermediate area lying under the sliding shut-off device. A solution to the problem of the present invention cannot be inferred from these documents.

One object of the present invention is to create a floor guide that allows access to the running gears at any time without removing the floor coverings arranged on the side of the running rails and, if necessary, to be able to temporarily remove the at least one sliding door.

This problem is solved by a floor guide according to the features of patent claim 1. Advantageous configurations of the floor guide are described in the dependent claims.

A removable center bar between adjacent sliding doors in the case of single and multi-track versions of the guide channel of the floor guide makes it possible to create free access to the drives after lifting the strip-shaped floor area between the rails and at the same time the possibility of unhindered extension of the double-T or T-shaped support of the sliding door through the exposed opening.

In a first embodiment, the central web can be lifted out of the guide channel from above simply by loosening screws. In a particularly advantageous embodiment of the central web, it can be removed from the guide channel without the use of tools, and so can the latter be exposed to provide access to the drives and also allow the sliding doors to be extended. Particularly advantageous is the configuration of the central web from two central web parts which, after being inserted into the guide channel, interlock with one another and are inextricably held together by the placement of the central strip-shaped base region. The central webs according to the invention reach to the bottom of the guide channel, so that the carriages can be shifted sideways and then removed from the channel without strip-shaped bottom sections having to be dismantled.

Figur 1

einen Querschnitt durch eine zweigleisige Bodenführung mit einem Führungskanal und einer darin gelagerten Schiebetür mit einem Mittelsteg,

Figur 2

einen Querschnitt durch eine zweigleisige Bodenführung mit einem Führungskanal und einer darin gelagerten Schiebetür mit einem zweiteiligen Mittelsteg,

Figur 3

einen Querschnitt durch eine zweigleisige Bodenführung mit einem Führungskanal und einer darin gelagerten Schiebetür mit einem zweiteiligen Mittelsteg, aufgespalten vor dem Herausnehmen,

Figur 4

einen Querschnitt durch eine eingleisige Bodenführung und

Figur 5a-5e

Querschnitte durch Bodenführungen zu verschiedenen Montagezeitpunkten.

On the basis of two exemplary embodiments, the invention is explained in more detail using a single-track and a double-track floor guide. Show it:

figure 1

a cross section through a double-track floor guide with a guide channel and a sliding door mounted therein with a central web,

figure 2

a cross section through a two-track floor guide with a guide channel and a sliding door mounted therein with a two-part central web,

figure 3

a cross section through a double-track floor guide with a guide channel and a sliding door stored in it with a two-part center bar, split open before removal,

figure 4

a cross-section through a single-track floor guide and

Figure 5a-5e

Cross-sections through floor guides at different times of installation.

In figure 1 is shown with reference numeral 1 a guide channel. The guide channel 1, usually made as an extruded aluminum profile and constructed in one or two parts, comprises a left-hand channel half 3 and a right-hand channel half 5 constructed in a mirror-inverted manner. The insulating webs 7 can serve as thermal insulators. The guide channel 1 is inserted in a recess 9 in a floor 11 made of concrete and fixed there. For the sake of clarity, the attachment of the guide channel 1 is not shown. In each of the channel halves 3.5, a running rail or a track 13 is arranged, on which rollers 15 of a carriage 17 are guided. As an alternative to running rails 13, on which rollers 15 of carriages 17 roll, rollers can be arranged on or in the bottom of the guide channel 1, on the apex of which profile flanges 21 arranged on the sliding doors 19 are guided (alternative arrangement not shown). Each profile flange 21 of each sliding door 19 is connected to the sliding door 19 via one or more vertically running double T-shaped support profiles 23 . The width of the vertical profile part of the carrier profile 23 essentially determines the width of a slot 25 through which the carrier profile 23 can be guided from above between floor coverings 27 and a floor support 29 .

Slabs of stone, wood, metal or the like can be used as floor coverings 27, such as are now customary in residential construction. The two floor coverings 27 arranged on both sides of the sliding doors 19 can consist of identical material or of different materials such as wood and stone. These laterally arranged floor coverings 27 protrude into the horizontally running upper opening cross section of the guide channel 1, i.e. they form a partial covering 33 of the guide channel 1 along the profile tabs 31 of the guide channel 1. Preferably, the edge area of the floor coverings 27, which extends over the upper cross section of the guide channel 1 protrudes from a Z-shaped Z-floor support 35.

The strip-shaped floor support 29 is inserted between the two Z floor supports 35 and partially covers the upper cross section of the guide channel 1 . Between the side edges of the floor support 29 and the free edges of the adjoining floor coverings 27 are the two slots 25 for the carrier profiles 23. The floor support 29 in turn comprises an aluminum profile in the shape of a large T, i.e. the horizontal area of the T carries a strip-shaped floor covering 27, for example made of stone, wood or another material whose surface corresponds to that of the floor coverings 27 arranged on both sides. This laid floor covering 27' can be held on three sides by a section of the floor support 29 which is U-shaped in cross section. Between these two legs 37 there is a central web 39 made of aluminum, plastic, steel or stainless steel, which is detachably connected to the bottom area of the guide channel 1 . The central web 39 is surrounded on both sides by the legs 37 essentially without play. This snug, play-free connection between the middle web 39 and the legs 37 means that the floor support 29 does not wobble or move when it is entered by people who leave the space that is separated by the sliding doors 19.

In the first embodiment of the invention, the central web 39, which is essentially rectangular in cross section, is connected to the bottom of the Guide channel 1 connected ( 1 ) or with locking elements that snap into place on the floor (not shown).

In accordance with the embodiment of the invention figure 2 the middle bar 39 includes two middle bars on the left 43 and right 45. The two right and left middle bars 43,45 are detachably connected to one another at two points, for example, by connecting elements 47 and 49. The connecting elements 47, 49 may be in the form of partially interlocking elements or the like. The lower ends of the left and right center ridges 43 and 45 may be tapered or the lower edge may form a step or foot. The widening areas 51 engage behind a section 53 of opposite design on the bottom of the guide channel 1. Now join the two middle webs left and right 43,45 together in such a way that they are placed on the bottom of the guide channel 1 at a slight outward incline and then tilt them against each other in a vertical position, as in figure 2 shown, the connecting elements 47 and 49 interlock. After attaching the floor support 29 to the two left and right middle webs 43,45, the latter are held tightly together and carry the floor support 29 without play. Additional fasteners are therefore not necessary.

In the construction of buildings with sliding doors 19, the latter are only installed at the end of the construction period and usually after the floor coverings 27 have been laid, since these are usually made of glass and are sensitive to damage during construction. However, with the conventional floor guide arrangements, this is not possible without effort, since the introduction of the carrier profiles 23 at the lower edges of the sliding doors 19 can then no longer be guided between the central web 39 and the Z floor supports 35 . Consequently, in the prior art, the sliding doors 19 must be placed on the rails before the floor coverings 27 are laid and the Z floor supports 35 are attached. The sliding doors 19 are consequently constantly exposed to dust and mechanical damage.

This is different with the floor guide according to the invention. The floor coverings 27 can be laid completely and the floor layer is not hindered in his work by the sliding doors 19 . The floor support 29 can also be placed neatly in its receiving profile and grouted. So that the sliding doors 19 can now be installed after the floor coverings 27, 27' have been laid, the floor support 29 is lifted off and laid aside. Then, according to the first embodiment of the invention, the screws 41 are loosened and the central web 39 is lifted off the bottom of the guide channel 1. The bottom of the guide channel 1 is now free of elements that the horizontal Insertion of the carriage 17 and the T-shaped support profile 23 would impede.

In the second embodiment of the invention, after the floor support 29 has been lifted off, the two left and right middle webs 43 and 45 are no longer held together and can be easily pivoted outwards and removed from the floor of the guide channel 1 ( 3 ).

Each sliding door 19 can now be moved into the guide channel 1 through the central upper opening and then, in the example in the figures, the right-hand sliding door 19 can be moved to the right and placed on the running rail 13 . The lower right arm of the profile flange 21 then comes to rest below the partial covering 33 by the floor covering 27 . The left sliding door is then retracted ( Figures 5a to 5c ) due to the opening cross-section, which is still wide enough, slightly inclined from above. By moving it slightly to the left, the left half of the profile flange 21 reaches under the floor covering 27 on the left and the sliding door 19 can be placed on the left running rail 13 . Afterward ( Figure 5d ) the center bar 39 is reinserted in the manner previously described and the floor support 29 ( Figure 5e ) pushed onto the middle web 39.

In the reverse procedure, one or both sliding doors 19 can, if necessary, be it for inspection work or repairs, without any Destruction of the floor covering 27 led out of the guide channel 1 and then used again.

In figure 4 a single-track floor guide is shown. In this embodiment, the middle web 39 is arranged on the left side of the running rail 13 . The middle bar 39 stands on the insulating bar 7 and can either be screwed to the latter or be designed in two parts, as in figure 4 shown.

In order to be able to install or remove the sliding door 19, the floor support 29 is lifted off the central web 39 and the sliding door is moved to the left. Then it can be lifted up out of the floor guide channel 1.

Claims (5)

1. A floor guide for single-track or multi-track sliding doors (19), comprising a guide channel (1) for rails (13), a central bar (39) for a floor support (29) for laying down a strip-shaped floor covering (27'),

   wherein the central bar (39) is designed to be detachably connectable to the bottom of the guide channel (1),

   characterized in that

   the central bar (39) is formed in two parts, and a left (43) and a right (45) element of the central bar are formed so as to be able, each individually, to be locked at the bottom of the guide channel (1) into lateral guide means (53) at the bottom of the guide channel (1).
2. The floor guide according to Claim 1, characterized in that the two left and right elements of the central bar (43, 45) are designed to be pivotable about the longitudinal axes thereof and to be able to be lifted out of the guide channel (1).
3. The floor guide according to Claim 1 or 2, characterized in that, when the floor support (29) is pushed on, the two left and right elements of the central bar (43, 45) are non-detachably held together at the bottom of the guide channel (1) by two legs (37) on the floor support (29).
4. The floor guide according to any one of Claims 1 to 3, characterized in that the central bar (39) consists of aluminum, plastic, steel or stainless steel.
5. The floor guide according to any one of Claims 1 to 4, characterized in that, at the sides of the guide channel (1), the floor coverings (27) rest on Z floor supports (35) extending over the side regions of the floor.

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