EP0122965B1 - Sliding door - Google Patents

Description

The invention relates to a sliding gate, consisting essentially of a guided sliding gate leaf with a lower horizontal flanges longitudinal spar, on the undersides of which at least one rotatably mounted roller rests at least for supporting the gate leaf and attack pressure rollers on the upper sides thereof.

Sliding gates of the type described in the introduction are known, for example, from DE-U 7 600 142. Such self-supporting sliding gates have proven their worth. For reliable support and guidance of the guided, movable gate wing, however, a relatively high construction effort is required, which additionally requires precise manufacture and complex and precise assembly. This is due to the fact that a large number of pressure rollers is provided per roller chair, these pressure rollers per roller chair being arranged in a common housing with their axes, and then this common housing is mounted on the shaft for the drive roller. This connection alone with the shaft for the drive roller is complex. In addition, exact parallelism between the bores for the axes of the pressure rollers and the shaft for the drive roller must be ensured in order to avoid obstacles. This forces high-precision manufacturing and extreme care during assembly. In addition, the assembly sequence is complex even with such an arrangement.

The considerations described above also apply to a sliding gate according to DE-A-1 683 259. According to this document, a sliding gate is held securely in contact with support rollers by a swiveling roller chair with 4 rollers, which engage in pairs opposite a longitudinal bar from the outside and on which Roll inside of the lower flange. In order to avoid unpleasant stiffness, on the one hand the roller axes must run exactly parallel to each other and the swivel axis of the swivel head must run parallel to the roller axes and at the same time to the axes of rotation of the camber rollers. This requires high manufacturing costs and also the most careful assembly on site at the construction site. The manufacturing and assembly effort is further increased in that the rollers are not arranged in pairs on a common axis, but that each roller necessarily has a separate axis of rotation. Overall, the construction and assembly work involved in this arrangement is very high and it is nevertheless to be feared that it is difficult to move and that this will result in high wear.

The invention is therefore based on the object of proposing a sliding gate of the type described at the outset, which is drastically simplified in construction, manufacture and assembly expenditure and nevertheless ensures the necessary safety and stability in the guidance of a self-supporting gate leaf.

According to the invention, this object is achieved in a sliding gate of the type described above in that, seen in the gate view, at least two pairs of pressure rollers are arranged symmetrically distributed to rotatably mounted rollers, one pair each being mounted in a common bearing block, which in turn is movable in the joint eye of an eyebolt is connected to a stationary part or to the foundation. With this measure, the number of pressure rollers can be reduced without losing stability of the guide. The pressure rollers themselves are movably mounted, so that the complex assembly and precise manufacture for the respective brackets is avoided. The pressure rollers themselves are no longer attached to the shaft door by a drive or support roller, but directly with a stationary part or with the foundation, which also simplifies the sequence of assembly and the overall assembly effort. It is not necessary to adhere to a specific assembly sequence, but rather the pressure rollers can be used at any time. This will also eventl. Repair measures required later will be significantly simplified because only very simple disassembly and assembly measures are required for the replacement of the drive rollers.

According to one embodiment of the invention it is provided that with a space to each other two rotatably mounted rollers are provided at least for support, wherein a pair of drive rollers is provided in each case outside the space between the two rotatably mounted rollers and in the vicinity of each of these rollers. By attaching two rotatably mounted rollers, with which the gate wing is supported, a certain basic support is initially achieved. Lifting of these rotatably mounted rollers, which at least act as support rollers, is prevented by the pairs of pressure rollers. The special position of these pairs of pressure rollers described here also ensures the widest possible pressure base, which improves the guiding stability of the door.

According to a further embodiment of the invention it is provided that with a space between each other two rotatably mounted rollers are provided at least for support, a pair of pressure rollers being provided in each case within the space between the two rotatably mounted rollers and in the vicinity of each of these rollers. This achieves the advantages already described in the previous paragraph, but the size of the entire guide part of the gate wing can be reduced by the special arrangement of the pairs of pressure rollers, which is advantageous in special applications.

Another embodiment of the invention provides that at least one further pair of pressure rollers is provided in the space between the rotatably mounted rollers. This further minimizes the construction effort.

Another embodiment of the invention in turn provides that two pairs of pressure rollers are provided for each rotatably mounted roller. This makes a special one in cases of particularly high load great leadership stability achieved.

Another embodiment of the invention provides that each roller of a pair of pressure rollers is divided and arranged on a common axis, this axis being mounted in a bearing block part, which in turn is connected to a second bearing block part via an axis mounted in the joint eye of the eye bolt a bearing block is summarized. The design described is particularly easy to manufacture and considerably simplifies the overall assembly and makes it possible to replace smaller worn individual parts.

Finally, according to one embodiment of the invention, it is provided that at least the running surface of each roller consists of plastic or rubber. In this way, at least when the gate wing is made of non-ferrous metals, actuation which is wear-free for the gate wing is achieved.

• Figur 1 Seitenansicht der Führungsgruppe mit gestrichelt angedeutetem unteren Teil des Torflügels
• Figur 2 Draufsicht nach Figur 1
• Figur 3 Ansicht in Richtung des Schnittes I-I nach Figur 1

The invention will now be explained in more detail with reference to the drawings, which show an embodiment. Show it:

• Figure 1 side view of the leadership group with dashed lines indicated lower part of the gate
• FIG. 2 top view according to FIG. 1
• Figure 3 view in the direction of section II of Figure 1

On a foundation 24 with a space 25 to each other bearing blocks 31, 32, 33 and 34 -ggfls. fixed with suitable spacers or spacers for height compensation. A shaft 35 is mounted in the bearing blocks 31 and 32 and a shaft 36 is rotatably mounted in the bearing blocks 33 and 34. A roller 7 is arranged on the shaft 35 in a rotationally fixed manner and a roller 8 is arranged on the shaft 36 in a rotationally fixed manner.

In the exemplary embodiment, a sprocket 35 or 38 is rotatably connected to the shaft 35 and the shaft 36. Both sprockets are connected to one another via the chain 40. The shaft 36 also has a coupling 37 connected to it in a rotationally fixed manner. The coupling 37 is suitable for connecting the shaft 36 to a desired drive device.

The gate wing 28 lies on the rollers 7 and 8 with the horizontal flanges 30 of its longitudinal spar 29. If the above-mentioned rollers are driven in rotation, the gate wing 28, which makes the necessary frictional contact with the rollers 7 and 8 due to its weight, is shifted accordingly. In this arrangement, on the one hand, the displacement force exerted by friction would not be sufficient in many cases and, moreover, the gate wing 28, which is cantilevered, would tip over in the extended position or, depending on the weight, even earlier. The transferable friction forces are improved and the risk of tipping is eliminated by pressure rollers 3, 4, 5, 6, 5 ', 6', which are arranged on the top of the horizontal flanges 30 in the longitudinal spar 29 of the gate wing 28 and run there. The pressure rollers mentioned should press the horizontal flanges 30 onto the rollers 7 and 8 on the one hand, so that an increase in the transferable frictional forces is achieved but the possibility of slipping through is retained for safety reasons, and on the other hand they should tilt the gate leaf 28 due to their special arrangement to make impossible. They should be simple in construction and easy to manufacture and also easy to assemble and replace, without sacrificing functional reliability.

In order to achieve the goals described above, the pressure rollers are combined into pairs 1, 2, 2 ', the pair 1 and the pair 2 being arranged outside the intermediate space 25, while a further pair 2' are arranged, for example, in the middle of the intermediate space 25 can be. However, the pair 2 'of the pressure rollers is not always necessary.

It is also possible, in addition or as an alternative to the pair 2 ', to provide 25 further pairs 26 and 27 of pressure rollers within the intermediate space. These positions are indicated by the arrows shown in FIG. 1 with the reference numerals 26 and 27. These pairs 26 and 27 can also be provided either alternatively or in addition to pairs 1 and 2. These arrangement options allow different door sizes and door loads to be taken into account.

Each roller 3 and 4 of the pair of rollers 1 is divided in the longitudinal direction and rotatably mounted on a common axis, which is arranged in the bearing block part 5 and 10, respectively. The same applies to the rollers 5 and 6, whose common axes are held in the bearing block parts 12 and 13, respectively. The same also applies to the rollers 5 'and 6', whose common axes are held in the bearing block parts 12 'and 13'.

The mentioned bearing block parts in turn each have an axis 11 or 14 or 14 'perpendicular to the axes of the rollers, the mentioned axes each connecting two bearing block parts to one another. The axes themselves are in this case articulated in a joint eye 15 or 16 or 17 of an eye screw 18 or 19 or 20. Here, the eyebolt 18 is attached with the free end to a stationary part 21, the eyebolt 19 with its free end to a stationary part 22 and the eyebolt 20 with its free end to a stationary part 23, for example screwed. By means of the screw connection, it is possible to position each eyebolt 18, 19, 20 in the vertical direction, so that the holding and pressing force of the pressure rollers described can be adjusted.

The described adjustability and the attachment via eyebolts to stationary parts allows the use of very simple components and makes high manufacturing precision unnecessary. It is no longer necessary to ensure that certain axes are exactly aligned with one another. In addition, bearings on the shafts 35 and 36 for holding the pressure rollers are unnecessary.

Advantageously, all the rollers described above are made of plastic or rubber or have at least one covering of at least the running surfaces made of plastic or rubber. On the one hand, this reduces rolling noise and, on the other hand, the transmissible frictional forces are lower Pressing force increases and damage to at least the longitudinal spar 29 of the gate wing 28 by the rollers, in particular by the rollers 7 and 8, which is particularly advantageous when the entire gate wing 28, but at least the longitudinal spar 29 is made of a non-ferrous metal.

List of the reference symbols used

• 1 pair of pressure rollers
• 2 pairs of pressure rollers
• 2 'pair of pressure rollers
• 3 pressure roller
• 4 pressure roller
• 5 pressure roller
• 6 pressure roller
• 5 'pressure roller
• 6 'pressure roller
• 7 rotatably mounted roller
• 8 rotatable roller
• 9 bearing block part
• 10 bearing block part
• 11 axis
• 12 bearing block part
• 13 bearing block part
• 14 axis
• 12 'bearing block part
• 13 'bearing block part
• 14 'axis
• 15 joint eye
• 16 joint eye
• 17 joint eye
• 18 eye bolt
• 19 eye bolt
• 20 eye bolts
• 21 stationary part
• 22 stationary part
• 23 stationary part
• 24 foundation
• 25 space
• 26 pairs of pressure rollers (arrow)
• 27 pairs of pressure rollers (arrow)
• 28 gate wings
• 29 longitudinal spar
• 30 horizontal flange
• 31 bearing block
• 32 bearing block
• 33 bearing block
• 34 bearing block
• 35 wave
• 36 wave
• 37 clutch
• 38 sprocket
• 39 sprocket
• 40 chain

Claims (7)

1. Sliding gate, consisting in the main of a guided slidable wing of a gate (28) with a lower longitudinal bar (29) with horizontal flanges (30), on the lower sides of which at least one pivoted roller (7, 8) abuts at least for the support of the wing of the door (28), and on the top sides of which pressure rollers (3, 4, 5, 6, 5', 6') grip, characterized in that, seen from the gate view, at least two pairs (1, 2, 2') of pressure rollers (3, 4, 5, 6, 5', 6') are arranged symmetrically distributed to pivoted rollers (7,8), whereby each pair (1,2,2') respectively is supported in a common bearing block (9, 10, 11; 12, 13, 14; 12', 13', 14'), which is in its turn movably connected to a stationary part (21, 22, 23) or with a foundation (24) in the hinged eye (15, 16, 17) of an eyebolt (18, 19, 20).

2. Sliding gate according to claim 1, characterized in that at least for support two pivoted rollers (7, 8) with a gap (25) to each other are provided, whereby a pair (1, 2) respectively of pressure rollers (3, 4; 5, 6) are provided outside of the gap (25) between both pivoted rollers (7, 8) and in the vicinity of these rollers (7, 8).

3. Sliding gate according to claim 1, characterized in that at least for support two pivoted rollers (7, 8) with a gap (25) to each other are provided, whereby a pair respectively of pressure rollers (26, 27) are provided inside the gap (25) between both pivoted rollers (7, 8) and in the vicinity of these rollers (7, 8).

4. Sliding gate according to claims 1 and 2, characterized in that at least one further pair (2') of pressure rollers (5', 6') is provided in the gap (25) between the pivoted rollers (7, 8).

5. Sliding gate according to claim 1, characterized in that two pairs (1, 26; 1, 2'; 2, 27; 2, 2') of pressure rollers (3, 4, 5, 6, 5', 6') are provided for each pivoted roller (7, 8).

6. Sliding gate according to claims 1 to 5, characterized in that each roller (3, 4, 5, 6, 5', 6') of a pair (1, 2, 2', 26, 27) of pressure rollers is arranged separated on a common axis, whereby this axis is supported in a bearing block part (9, 10; 12, 13; 12', 13') which is, in its turn, connected to a second bearing block part via an axis (11, 14, 14') supported in the hinged eye (15, 16, 17) of an eyebolt (18, 19, 20) and combined as one bearing block.

7. Sliding gate according to at least one of the claims 1 to 6, characterized in that at least the bearing surface of each roller consists of plastic or rubber.

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