EP1904706B1 - Guiding mechanism for sliding leaves or sliding doors - Google Patents

Description

The invention relates to a guide device for sliding devices according to the preamble of claim 1.

In known guide devices referred to in the preamble of claim 1, as they are customary today, for example in Schiebetorbau, the actual gate additionally additionally required for the function chucking part is added. For example, in the case of EP 0 279 155 B1 a sliding gate as a carrier for a box profile two roller blocks, which are arranged at a distance from each other transversely to the barrier path and outside this path. The roller blocks each carry an upper pair of rollers and a lower pair of rollers, which are formed as a groove rollers. The top grooved rollers engage in two parallel ribs in the top Box profile wall, while the lower grooved rollers are guided in two parallel ribs in the lower box section wall in the vicinity of a long slot of the box section. The box section extends from the front gate edge to the outer roller block. The result is a significant lengthening of the door with adverse effects on material usage, transportation costs, labor costs, space-related usability and appearance. The leverage is also unfavorable in these constructions, making high demands on the Torstatik, the track profile and the rollers are made.
Lack of space already known solutions, such as in the DE 41 37 442 A1 , which provide telescopically movable gates with portable roller carriers. This known sliding door has two fields. The first field consisting of two field parts is slidably supported by floor brackets. Between the two field parts, the second field is provided. The second panel is slidably supported by two roller blocks carried by plates fixed to guide rails of the field members of the first panel and interconnecting them. To open and close the Schiebetors a drive is present, which results in a controlled movement of the first field relative to the second field. In such gates, the basically same load as in the first-mentioned guiding device on the gate and on the rollers occurs.

US 3,705,468 and EP 0 760 415 reveal further sliding door systems. The object of the invention is to provide a guide device referred to in the preamble of claim 1, in which the leverage ratios are cheaper and therefore the load on the rollers and roller bearings and the deflection of the door and track is reduced.
This object is achieved with the features of claim 1.

Thus, essentially only a single carrier is required instead of the 2 roller blocks for the gate, and by the formed with the support arms, sliding lever construction, a lower load on the rollers and roller bearings can be achieved.

The invention is not only applicable to gates, but it can also, for example, in shelving and shop systems, canopies, covers, mobile bridges, work and formwork platforms, tunneling machines (tunneling and mining), pullout and Ausschubvorrichtungen in machinery and equipment and to be used in partitions and furniture.

According to an expedient, further embodiment of the invention, the portable roller carrier is slidably mounted in an existing in a stationary roller carrier open, partially open or closed housing and anchored for its working position.

According to an expedient, further embodiment of the invention, a second portable roller carrier is provided which is slidably mounted in the opposite direction to the first portable roller carrier and can be anchored for its working position.

According to an expedient, further embodiment of the invention, the portable roller carrier is completely or partially retractable executed in the ground and can be brought from there by means of suitable control, coupling and drive elements in its working position.

According to an expedient, further embodiment of the invention, one or more rollers are vertically and / or horizontally adjustable on the stationary roller carrier.

According to a further embodiment of the invention, the second support arm consists of two spaced-apart, parallel and interconnected second plates. The torsional stiffness of the second support arm can be increased in this way.

According to a further embodiment of the invention, another of the roller pairs is fixedly mounted on the housing. These serve, among other things, the shifting of weight during a door movement and the load on the roller bearings can be reduced even further under certain circumstances.

According to a further embodiment of the invention, the further pair of rollers in an essentially housing longitudinal direction is adjustably mounted on the housing. Thus, the other pair of rollers can be adapted to the box profile and save space.

According to a further embodiment of the invention, the support arms are guided on mounted in the housing supports. These supports are preferably plate bearings. In some cases, use or combination with roller bearings may be advantageous.

According to an expedient, further embodiment of the invention, the carrier comprises a floor-mountable mounting plate which carries the housing.

Fig. 1

eine perspektivische Ansicht eines Trägers für ein Laufschienenprofil eines freitragenden Schiebetors gemäß der Erfindung,

Fig. 2

eine Draufsicht auf den Träger der Fig. 1,

Fig. 3

eine Seitenansicht des Trägers der Fig. 1,

Fig. 4

eine perspektivische Teilansicht einer zweiten Ausführung eines Trägers für ein Laufschienenprofil eines freitragenden Schiebetors gemäß der Erfindung mit nach derjenigen Seite ausgefahrenen Tragarmen, bei der das Schiebetor die geschlossene Stellung einnimmt,

Fig. 5

eine perspektivische Teilansicht des Trägers der Fig. 4 mit nach beiden Seiten ausgefahrenen Tragarmen,

Fig. 6

eine perspektivische Teilansicht des Trägers der Fig. 4 mit nach derjenigen Seite ausgefahrenen Tragarmen, bei der das Schiebetor die offene Stellung einnimmt,

Fig. 7

eine perspektivische Ansicht eines Trägers und eines darauf gleitenden Laufschienenprofils,

Fig. 8

eine perspektivische Teilansicht des Trägers der Fig. 4 in geschlossener Torstellung,

Fig. 9

eine perspektivische Teilansicht des Trägers der Fig. 6 in offener Torstellung,

Fig. 10

eine vergrößerte Stirnansicht des Trägers und des Laufschienenprofils in Richtung X in Fig. 7,

Fig. 11

eine Seitenansicht einer Mechanik zum Herausziehen eines ortsveränderlichen Rollenträgers,

Fig. 12

eine Seitenansicht eines Ausrückmechanismus mittels Magneten für einen ortsveränderlichen Rollenträger,

Fig. 13

eine Seitenansicht eines Ausrückmechanismus mittels Saughafter für einen ortsveränderlichen Rollenträger,

Fig. 14

eine Seitenansicht eines erfindungsgemäßen Schiebetores ähnlich der Ausführung Fig. 17a-17c mit einer mitfahrenden Stützrolle in Auf-Richtung

Fig. 15a-15c

schematische Seitenansichten eines Tors nach dem Stand der Technik ähnlich der EP 0 279 155 B1 zum Vergleich mit der Erfindung,

Fig. 16a-16c

schematische Seitenansichten eines Tors mit einer ersten Ausführung einer Führungsvorrichtung gemäß der Erfindung, insbesondere für kleinere Tore,

Fig. 17a-17c

schematische Seitenansichten eines Tors mit einer zweiten Ausführung einer Führungsvorrichtung gemäß der Erfindung, insbesondere für mittelgroße Tore, wenn nur ein ortsveränderlicher Rollenträger vorgesehen ist, und

Fig. 18a-18c

schematische Seitenansichten eines Tors mit einer dritten Ausführung einer Führungsvorrichtung gemäß der Erfindung, wenn der (die) ortsveränderliche(n) Rollenträger am Tor mitfahrend ausgeführt und im Bereich des Laufschienenprofils angeordnet ist (sind).

Fig. 19a-19c

schematische Seitenansichten eines Tors mit einer weiteren Ausführung einer Führungsvorrichtung gemäß der Erfindung.

The invention will now be explained in more detail with reference to exemplary embodiments. Show it:

Fig. 1

3 is a perspective view of a carrier for a track profile of a self-supporting sliding gate according to the invention,

Fig. 2

a plan view of the carrier of Fig. 1 .

Fig. 3

a side view of the carrier of Fig. 1 .

Fig. 4

a partial perspective view of a second embodiment of a support for a rail profile of a cantilever sliding gate according to the invention with extended to the side support arms, in which the sliding gate occupies the closed position,

Fig. 5

a partial perspective view of the carrier of Fig. 4 with support arms extended to both sides,

Fig. 6

a partial perspective view of the carrier of Fig. 4 with support arms extended to the side in which the sliding gate assumes the open position,

Fig. 7

a perspective view of a carrier and a sliding thereon rail profile,

Fig. 8

a partial perspective view of the carrier of Fig. 4 in closed door position,

Fig. 9

a partial perspective view of the carrier of Fig. 6 in open door position,

Fig. 10

an enlarged end view of the carrier and the rail profile in the direction X in Fig. 7 .

Fig. 11

a side view of a mechanism for extracting a portable roller carrier,

Fig. 12

a side view of a release mechanism by means of magnets for a portable roller carrier,

Fig. 13

a side view of a release mechanism by means of Saughafter for a portable role carrier,

Fig. 14

a side view of a sliding door according to the invention similar to the execution Fig. 17a-17c with a moving support roller in the up direction

Fig. 15a-15c

schematic side views of a door according to the prior art similar to EP 0 279 155 B1 for comparison with the invention,

Fig. 16a-16c

schematic side views of a gate with a first embodiment of a guide device according to the invention, in particular for smaller goals,

Fig. 17a-17c

schematic side views of a gate with a second embodiment of a guide device according to the invention, in particular for medium-sized gates, if only a portable roller carrier is provided, and

Fig. 18a-18c

schematic side views of a gate with a third embodiment of a guide device according to the invention, when the (the) portable roller carrier carried along the goal ride and arranged in the region of the track profile (are).

Fig. 19a-19c

schematic side views of a gate with a further embodiment of a guide device according to the invention.

The most important versions of the invention are in the form of simplified side views of gates with guide devices based on the Figures 16a-16c, 17a-17c . 18a-18c and 19a-19c explained. For comparison is in the Figures 15a-15c a gate with a guide device according to the prior art shown. The door positions are shown in the positions "closed" (a), "middle" (b) and "open" (c).

In Fig. 15a For example, an elongated concrete foundation 1 ' ₁ with rolling stands at the front end at a position A and at the rear end at a position B is shown. The rollers of these rolling blocks slide in a track profile 19, on which a gate 49 'is constructed. As can be seen, the leverage ratios in the FIGS. 15a and 15c for door leaf and rollers very unfavorable.

Instead of as usual to incorporate the rollers (or sliding elements) at the positions A and B, proposes the invention, the rollers, for example, according to the Fig. 16a placed in the vicinity of the gate center of gravity at a position A 'and in the region of the stationary roller carrier 1' ₂ at a position B '. This measure reduces the burden of gate and rollers. More precisely, the stationary roller carrier 1 ' _{2 is} mounted on a foundation at Torende next to the door opening. The associated roles are fixed or adjustable in the area of the roller carrier for adjustment and space saving purposes. For some applications, it may be useful to provide a vertical adjustability or controllability (adjustability during door movement for the purpose of a controlled Tragarmentlastung or weight transfer) of the role. A portable (movable) Roller carrier 1 " ₂ supports the door in its" closed "position For smaller gates, it makes most sense to move an approximately horizontally arranged roller carrier 1" ₂ from the side in the direction of the passage and to anchor it laterally in the area of the stationary roller carrier. The dimensioning must be such that the weight taken up by the rollers can be handled by the roller carrier and its supports. At the points of contact high leverage forces occur, so that the version after the Figures 16a-16c can only be used up to a limited opening width.

For medium-sized goals, it is recommended that in the FIGS. 17a-17c shown version in which only a portable roller carrier 1 " _{3 is} provided and in which an additional roller carrier 53 or two additional roller supports 53, 54 are provided, which are fixedly mounted on the ground or extendable from the ground and from each other and the roller carrier 1" _3rd are spaced apart. This design offers the advantages according to the invention of a short door leaf and favorable load moments on the rollers, but the foundation here as well as in the execution after Fig. 14 more elaborate than a model Figures 16A-16c ,

For particularly large gates, it is recommended that in the Figures 18a-18c to use the version shown. In this embodiment, at a position C engaging, portable, moving roller carriers on a disengageable support, which is adapted to dissipate the recorded from the rollers 55 weight force to the ground.

The invention advantageously makes it possible to utilize the load transfer during a cycle of movement. This "gravity control" allows namely to bring the portable roller carrier without full weight load and thus without significant effort in that position, which is referred to here as a working position and in the after anchoring this role carrier the gate can support itself once it has moved its center of gravity beyond the castors responsible for weight transfer. The localized roller carriers must be independent of each other in order to carry out the load torque-free positioning.

In the described sliding gate mounted on the portable roller carriers rollers are designed to accommodate the pressure load, while the stationary rollers have to absorb a traction as an abutment. In some Torvarianten results that no more tilting moments occur due to the number of portable roller carriers and then no tensile, but also pressure forces on the stationary roller carrier, only side guiding forces or temporarily no forces act.

The portable roller carriers must be brought into their working position according to the invention. This can be done in different ways. One possibility is to manually pull out or settle the portable roller carrier and, if necessary, to lock. Of course, these processes can also be automated. The technical means and methods for this are known in the art and need not be explained in detail here. Some expedient, exemplary methods will be described later on the basis of FIGS. 11-13 explained.

In the FIGS. 1 to 3 is a concrete first embodiment of a guide device 1 for a designed as a box profile rail profile of a self-supporting sliding gate shown. The guide device 1 comprises a stationary roller carrier 1 'and a movable roller carrier 1 ". The stationary roller carrier 1' has a rectangular mounting plate 2 which can be fastened to a bottom and which carries an elongated, open, rectangular cross-sectionally shaped housing 3 In the housing 3, two support arms 4, 5 against each other in a manner not shown slidably guided. The first support arm 4 consists of two first plates 6, 7, which have a distance from each other, run parallel and are interconnected. Between these first plates 6, 7 of the second support arm 5 is arranged, which here consists of two second plates 8, 9, which are at a distance from each other, are parallel and interconnected. At the free end, the first plates 6, 7 carry a pair of rollers 10, 11, while the opposite end of the second plates 8, 9 carries a pair of rollers 12, 13. Further, a pair of rollers 14, 15 is fixedly mounted on the housing 3. The rollers 10-15 run in longitudinal grooves of the rail profile of the sliding gate, as will be explained in more detail.

The pair of rollers 14, 15 is mounted in a substantially extending in the longitudinal direction of the housing 3 slot 16 and set adjustable in this slot 16 so that it can be adapted to the rail profile. The further pair of rollers 14 ', 15' is particularly useful if the weight shift of the track, because of the length ratios between track and a portable roller carrier, not over a pair of rollers of a sliding roller carrier, but in the region of the housing 3 must be done. In this context, it may be advantageous to slightly upwardly stretch the outer sides of the running track in the shape of an arc. As the Fig. 3 shows, supports 17, 18 are provided for the mounting of the support arms 4, 5. These supports are not shown in detail, but may preferably be formed by massive plates. If roller bearings are used here for improving the sliding movement of a displaceable roller carrier, the same springs should be installed so that the high lever forces occurring in the working position can be absorbed by the slightly lower, heavy-duty plate supports.

The FIGS. 1 to 3 show the carrier 1 in a position in which the sliding gate is closed. If the sliding gate is opened, the second support arm 5 first moves with the pair of rollers 12, 13 to the right, whereupon after the door has moved the first support arm 4 follows after contact with the end face of the running rail on further opening of the sliding gate to the right.

In the FIGS. 4 to 6 a second embodiment of the carrier 1 * is shown, in which case the housing 3 has been partially omitted. In this embodiment, the second support arm 5 'only a single plate or two closely spaced plates. The Fig. 4 shows the carrier 1 * in the position in which the sliding gate is closed. The Fig. 5 shows this carrier in an intermediate position, and the Fig. 6 shows this carrier in the position in which the sliding gate is open.

In Fig. 7 For example, the carrier 1 * and a sliding rail profile 19 sliding on it, which can receive gate walls or grilles. The Fig. 8 shows the carrier 1 * in the position in which the sliding gate is closed, while the Fig. 9 shows the carrier 1 * in the position in which the sliding gate is open.

In Fig. 10 The rail profile has two longitudinal grooves 20, 21, in which the rollers 10, 11, as the rollers 12, 13, are guided. The rollers 14, 15 can be guided on lower ribs 22, 23, with the same time claws 24, 25 are formed for receiving door accessories or rail connecting elements. The second plates 8 ', 9' have here in contrast to the execution of FIGS. 1 to 3 no distance from each other. The rail profile 19 is open at the bottom (see longitudinal slot 26), so that here the housing 3 can protrude.

In order to bring the portable roller carriers into their working position, there are various possibilities. In many cases, it is advantageous to use gravity to pull out or push out. For example, a weight can be raised by means of a rope pulley deflected carrying rope during insertion of the roller carrier. The pushing out then takes place by the weight. adversely is for some applications that the mechanism does not fit completely within the track rail. Some convenient, space-saving drive devices are explained below representative.

The Fig. 11 shows a mechanism for extracting a portable roller carrier. The mechanism comprises a headband 40 which is connected to the track profile 19, a hook 41 which engages in the headband 40, and a shift rod 42, which communicates with the hook 41 and with a release lever 43 in connection. If the door moves in the direction of the arrow, the portable roller carrier 7 is dragged along with the door until the release lever 43 abuts the housing 3 and actuates the hook 41 by means of the shift rod 42. Thus, the roller carrier 7, which is now in its working position, uncoupled from the gate. The rail profile 19 can continue its movement, continues through the gate weight on the movable roller carrier 7 and thus also causes its precise alignment corresponding to the guide combs 39. The headband 40 snaps into the hook in the movement in the opposite direction again 41 and pushes the portable roller carrier 7 back to its original position. If another portable roller carrier for the opposite side exists, the same procedures are carried out analogously.

The Fig. 12 shows a release mechanism by means of magnets. If a magnetic adhesive device (magnet + magnet 44 or magnet + iron) attached to the outsides of the portable roller carrier 7 and the track profile 19, the disengagement can be realized in a very simple manner by the spatially coupled roller carrier 7 magnetically coupled to the track profile 19 of the door becomes. Uncoupling can be done simply by overcoming the adhesive force. This can u. U. lead to the occurrence of load peaks (Polfühligkeit), but which can be avoided by the use of switchable magnets (such as electromagnets).

The Fig. 13 shows a release mechanism by means of suction. On the movable roller carrier 7, a suction fan 45 (suction cup) is attached, which couples in contact with the smooth end face of the rail profile 19 and decoupled by means of a ventilation hose 46, a ventilation valve 47 and an associated control lever 48 when reaching the working position.

In the Fig. 14 a further embodiment of the guide device according to the invention is shown, wherein a cantilevered only in the direction of goal 49 (as in Fig. 17a-17c ) is guided with a rail profile 19. The gate 49 is shown in the open position (similar Fig. 17c ). As can be seen, the support roller (53 in FIG Fig.17c ) in the Figure 14 replaced by a roller (51) moving along at the gate. The traveling support roller (51) is guided here on the ground, but can also be performed for many applications preferably in its own, fixed mounted track rail.

Among other things, this embodiment variant is particularly advantageous when the proposed guide arrangement is used in drawer applications. In this context, it may be advantageous to run the track multi-track, so that for the stationary roller carrier is a track, and for the portable role carrier another track is available.

If a full-extension system or an over-extension system is required, this can, of course, be achieved analogously to known systems by using a combination of two or more guide arrangements according to the invention. Another advantageous embodiment in this context is to make the end of the running rail or at least one running surface (track) by means of suitable mechanism during its movement ver-extended, so as to allow a correspondingly longer movement stroke. In the Figure 19 is a possible, such mechanics shown in the embodiment of a folding mechanism. As can be seen from the detail view 19b, here, for example, a hinge 56 is attached to the upper edge of the running rail. In the to-move, the extension piece has to be folded down in time, down in the up motion, in time. The control and the drive for this is done manually or with the known means of technology.

In one embodiment, if only one portable roller carrier is provided for a direction of movement, for example, in the direction of travel, a support roller or an effect-like measure must be provided in the up direction.

If in one embodiment, only a single portable roller carrier is provided for both directions of movement, it must be ensured with an additional measure that the displacement of the portable roller carrier can be done in its working position according to the invention substantially lastmomentfrei. In this case, the stationary roller carrier assumes in the required for the time of Tragarmverschiebung extent the complete leadership of the track. An advantageous possibility in this context is the use of an arcuate lifting track on the running rail. Another such suitable measure may for example consist of a lifting device which is mounted in the region of the stationary roller carrier. This can consist of active, motorized lifting elements or simple lifting slats on the running rail. In this last-mentioned embodiment, thickenings mounted on the rails under or inside move during the door run via rollers provided for this purpose on the stationary roller carrier, thereby lifting the running rail slightly. Now the portable roller carrier can be moved without much effort into its other working position. This portable roller carrier must be mutatis mutandis equipped at both ends with rollers and at both ends for anchoring the invention in the working position be suitable. Likewise, a lowering of the supports or rollers can be used to move a moving roller carrier almost free of load torque. The lowering and raising can be done in a variety of ways with the known means of the art, such as with magnetic, hydraulic, pneumatic or mechanical devices. An advantage of these variants is the ability to make the sliding device height adjustable, that is, to achieve a variable altitude in the open and in the delivery.

In contrast to all known guide devices at least one portable roller carrier in the form of a support arm is used in the variants according to the invention, which can absorb forces in its working position on its designated roles or sliding elements and can derive on the opposite side on the support point and or anchoring point , Characteristic here is that take place at the support points in the heavily loaded state no relative movement between the support arm and support.

A portable arm can also be equipped with additional rollers, approximately on the anchoring side, so as not to drag on the support points during its displacement.

Lastmomentfrei here means unloaded to weight-loaded by a force that is not significantly higher than the weight, so is not multiplied by the lever factor.

Working position we call that position or positions in or in which a portable roller carrier by anchoring forces can absorb and derive.

1. 1. Das Torblatt verkürzt sich, weil der Einspannteil fast vollständig wegfällt. Dadurch werden Material, Transportkosten und Beschichtungskosten eingespart, und der Einbauplatzbedarf wird verringert.
2. 2. Die frei auskragende Länge des Torblatts wird bei einer vergleichbaren Durchfahrtsbreite kleiner. Das Torblatt und die Laufrollen werden weniger belastet.
3. 3. Das Fundament verkleinert sich und wird dadurch billiger.
4. 4. Das Tor läuft leichter - mit allen positiven Auswirkungen auf Antrieb, Absicherung und Lebensdauer.
5. 5. Das Tor kann ästhetischer gebaut werden, weil auf Elemente zur statischen Aussteifung verzichtet werden kann.

The main advantages of the invention in use with self-supporting sliding gates can be summarized as follows:

1. 1. The door leaf is shortened because the clamping part is almost completely eliminated. As a result, material, transport costs and coating costs are saved, and the space requirement is reduced.
2. 2. The cantilevered length of the door leaf is smaller at a comparable passage width. The door leaf and the rollers are less loaded.
3. 3. The foundation shrinks and thus becomes cheaper.
4. 4. The goal is easier - with all the benefits of drive, protection and durability.
5. 5. The door can be built more aesthetically, because it can be dispensed with elements for static reinforcement.

Claims (16)

1. Guiding apparatus (1) for sliding devices, particularly door leaves or gates, with a track profile (19) supported on rollers (10-15) or sliding elements, which is furnished with a superstructure, characterized in that one stationary roller support (1') and at least one movable roller support (1") are provided, each of which include rollers (10-15) or sliding elements, on which the track profile (19) is supported, and the movable roller support (1") can be brought into its working and/or end position substantially free from load moment, without full weight load by the track profile (19) and the superstructure, so that in the working and/or end position it supports a further movement of the track profile (19).
2. Guiding apparatus according to claim 1, characterized in that the movable roller support (1") can be supported movably and anchored for its working position in an open, partially open or closed housing (3) present in the stationary roller support (1').
3. Guiding apparatus according to claim 1 or 2, characterized in that a second movable roller support (8, 9) is provided, which can be supported movably and anchored for its working position in the opposite direction to the first movable roller support (6, 7).
4. Guiding apparatus according to claim 1, characterized in that the movable roller support (1") is wholly or partially accommodated in the track profile (19) and can be brought from there into its working position by means of suitable control and drive elements.
5. Guiding apparatus according to claim 1, characterized in that the movable roller support (1") is designed so that it can be lowered wholly or partially into the bottom, and can be brought from there into its working position by means of suitable control, coupling and drive elements.
6. Guiding apparatus according to one of claims 1 to 5, characterized in that one or more rollers (14, 15) are designed to be adjustable vertically and/or horizontally on the stationary roller support (1').
7. Guiding apparatus according to one of claims 2 to 6, characterized in that the stationary carrier (1, 1*) includes an elongated housing (3) with an upright rectangular cross-section, that a first support arm (4) and a second support arm (5) are mounted in the housing (3) so as to be movable towards each other, each of which arms supports one of the roller pairs (10, 11; 12, 13) at opposite ends thereof, and that the first support arm (4) consists of two first plates (6, 7) which are spaced apart from each other, parallel and connected to each other, between which the second support arm (5) is arranged.
8. Guiding apparatus according to claim 7, characterized in that the second support arm (5) consists of two plates (8, 9) which are spaced apart from each other, parallel and connected to each other.
9. Guiding apparatus according to claim 7 or 8, characterized in that a further one (14, 15) of the roller pairs is attached immovably to the housing (3).
10. Guiding apparatus according to claim 9, characterized in that the further roller pair (14, 15) is attached to the housing (3) displaceably in the longitudinal direction of the housing.
11. Guiding apparatus according to one of claims 7 to 10, characterized in that the supporting arms (4, 5) are mounted on bearings (17, 18) that are fitted in the housing.
12. Guiding apparatus according to claim 11, characterized in that the bearings (17, 18) are roller bearings.
13. Guiding apparatus according to one of claims 7 to 12, characterized in that the support (1, 1*) comprises a mounting plate (2) which is fastenable to the bottom and supports the housing (3).
14. Guiding apparatus according to one or more of claims 1 to 13, characterized in that separate running surfaces (track guides) are present on the track profile for the guide rollers of the stationary roller support (1'), and additional running surfaces are present for the guide rollers of the movable roller supports (1").
15. Guiding apparatus according to one or more of claims 1 to 14, characterized in that at least one running surface (20, 21, 22, 23) of the track profile can be extended during a movement cycle.
16. Guiding apparatus according to claims 15, characterized in that the extension of the track profile is performed by means of a folding or pivoting mechanism.

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