PIVOT SLIDING DOOR GUIDING DEVICE WITHOUT GUIDE RAIL

Abstract

A pivot sliding door guiding device includes a longitudinal profile with a guiding track and slider, supported on support rollers in a linearly movable manner in the guiding track, and which is connected to a door leaf and transfers a bearing load onto the slider. In the guiding track, convex bearing members extending in the longitudinal direction are disposed, on which support rollers of the slider with, in each case, peripherally extending concave guiding grooves roll and are retained in the transverse direction. The door leaf is connected to the slider whereby a center of gravity acts off-center on the slider in running and transverse directions. The slider has support rollers which serve for the load transfer of the load acting from the door leaf on the slider. The rollers roll on upper and lower convex bearing members, and transfer load of the door leaf via the convex bearing members.

Claims

1. A pivot sliding door guiding device for a public transport vehicle, comprising a longitudinal profile formed from a first material for attachment to a door portal, which forms a guiding track, which is U-shaped in cross section, with a bottom surface and two side walls extending therefrom, a slider, which at least partially reaches directly into the guiding track and is supported on support rollers in a linearly movable manner in the guiding track, with an attachment region for an attachment of a door leaf, wherein a bearing load is transferred via the attachment region onto the slider, wherein a convex bearing member extending in the longitudinal direction is in each case arranged in the guiding track on the inner faces of the side walls, namely an upper convex bearing member and a lower convex bearing member, wherein the bearing members are arranged such that they extend parallel to each other and are opposite each other, the support rollers supporting the slider each have a peripherally extending concave guiding groove, by means of which they roll in each case on one of the convex bearing members and are retained in the transverse direction in operation during a linear movement of the slider in the running direction, the longitudinal profile is formed from a first material which is softer than a second material from which the bearing members are formed, the attachment region is arranged on the slider such that the center of gravity of the former acts off-center on the slider in the running direction and in the transverse direction, the slider exclusively has support rollers which, together, serve for the load transfer of the load introduced via the attachment region and acting on the slider, in operation, at least one support roller rolls on the upper convex bearing member and the other support roller rolls on the lower convex bearing member, wherein both support rollers transfer load of the door leaf via the convex bearing members.

2. The pivot sliding door guiding device according to claim 1, wherein the attachment region is arranged in the region of a free end of the slider.

3. The pivot sliding door system according to claim 1, wherein more than two support rollers are provided.

4. The pivot sliding door guiding device according to claim 2, wherein two support roller groups are provided, whose support rollers are disposed in each case side-by-side in the running direction of the slider, wherein the first support roller group is arranged closer to the door leaf than the second support roller group.

5. The pivot sliding door guiding device according to claim 2, wherein a group spacing between the two support roller groups is greater than a support roller spacing between individual support rollers.

6. The pivot sliding door guiding device according to claim 5, wherein the first support roller group has more support rollers than the second support roller group.

7. The pivot sliding door guiding device according to claim 5, wherein the support roller spacing between individual support rollers of the first support roller group is smaller than the support roller spacing of the second support roller group.

8. The pivot sliding door guiding device according to claim 4, wherein the first support roller group has five support rollers, and the second support roller group two support rollers.

9. The pivot sliding door guiding device according to claim 1, wherein at least one support roller is configured to be adjustable and fixable with regard to its height such that the support rollers can be braced against each other in the guiding track and are guided in a clearance-free manner in operation.

10. The pivot sliding door guiding device according to claim 9, wherein adjacent support rollers alternately contact the upper bearing member and the lower bearing member.

11. The pivot sliding door guiding device according to claim 9, wherein the two adjacent support rollers of the two support roller groups, i.e. the support rollers delimiting the group spacing between the two support roller groups, contact the same bearing member.

12. The pivot sliding door guiding device according to claim 1, wherein all support rollers and the two convex bearing members each have the same geometry, so that each support roller, depending on its positioning, can roll on both bearing members.

13. The pivot sliding door guiding device according to claim 1, wherein the bearing members are configured as round bars.

14. A pivot sliding door system, comprising a pivot sliding door guiding device according to claim 1.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0038] The disclosure is explained further with reference to the following Figures. They depict an embodiment of the disclosure that is not to be understood to be limiting. In the Figures:

[0039] FIG. 1 shows an illustration of a portion of a preferred embodiment of the disclosure in a frontal view with a door leaf and a slider,

[0040] FIG. 2 shows a cross-sectional view of the embodiment from FIG. 1,

[0041] FIG. 3 shows a perspective view of the embodiment from FIG. 1, obliquely from the front, without a door leaf and with two sliders,

[0042] FIG. 4 shows a perspective view of the embodiment from FIG. 1, obliquely from the rear, without a door leaf and with two sliders,

[0043] FIG. 5 shows an illustration of support rollers of the preferred embodiment of the disclosure according to FIG. 1 in a frontal view, without a door leaf and without a slider,

[0044] FIG. 6 shows sectional view of the preferred embodiment of the disclosure according to FIG. 1 with a support roller and a slider, support roller abutting against the bottom, and

[0045] FIG. 7 shows sectional view of the preferred embodiment of the disclosure according to FIG. 1 with a support roller and a slider, support roller abutting against the top.

DETAILED DESCRIPTION OF THE DRAWINGS

[0046] Particularly the FIGS. 1 to 4 illustrate the structure of a preferred embodiment of a pivot sliding door guiding device 20 according to the disclosure.

[0047] The pivot sliding door guiding device 20 may be used, for example, in a pivot sliding door system 10 of a vehicle (e.g. a public transport vehicle) which is not depicted. The pivot sliding door system 10 comprises at least one door leaf 50 (optionally also several, e.g. two, door leaves 50), which can be moved via a transverse guide 54, using a drive unit, from a position closing a door portal of the vehicle into an open position enabling the entry of passengers through the door portal. Preferably, the pivot sliding door guiding device 20 is arranged in the upper region of the door portal; it may also be retrofitted into door systems already implemented in a vehicle.

[0048] The transverse guide 60 but also the drive units 62 which drive the door leaves 50 in the longitudinal direction can be seen in FIGS. 3 and 4. When the door leaves 50 are opened, the drive units 62 are first moved out of the door portal in order to then move the door leaves 50 laterally of the vehicle, e.g. by means of a spindle or toothed-belt drive with a toothed belt 66 (see FIG. 4).

[0049] A slider 24 guided in a linearly movable manner is disposed in a longitudinal profile 22. The slider 24 reaches at least partially into the longitudinal profile 22, which is configured like a U-shaped profile. Depicted is a longitudinal profile 22 with two guiding tracks 26, wherein a slider 24 is shown in FIGS. 1 and 2 only in the lower guiding track 26 for illustrative reasons; of course, a slider 24 is guided also in the depicted upper guiding track 26. If the pivot sliding door system 10 has only one door leaf 50, a single guiding track 26 is sufficient.

[0050] The two guiding tracks 26 each have a bottom surface 28 and two side walls 30 extending therefrom at right angles (see, in particular, FIGS. 5 and 6), wherein the two inner side walls 30 of the two guiding tracks 26 are formed by a common central web in the illustrated exemplary embodiment. Alternatively, two longitudinal profiles 22 that do not have a common central web may also be arranged one above the other.

[0051] FIG. 1, in particular, illustrates that the door leaf 50 is connected to the slider 24 in an attachment region 64 at a free end of the former. Thus, the load or the center of gravity of the door leaf 50 (indicated by the arrow in FIG. 1) does not act centrally on the slider 24, but acts, at the end side, off-center in the longitudinal direction X-X. In addition, the center of gravity of the door is arranged off-center also in the transverse direction Y-Y, which is clearly shown in FIG. 2. These two facts result in heightened requirements with regard to the configuration and positioning of the support rollers 32 and the dimensioning of the slider 24.

[0052] In the depicted exemplary embodiment, the support rollers 32 of the slider 24 are guided in the guiding track 26 on bearing members 34 extending in the longitudinal direction X-X along the guiding track 26. The bearing members 34 arranged on the inner faces 36 of the side walls 30 each have a convex surface. For this purpose, the support rollers 32 each have a peripherally extending concave guiding groove 52 corresponding thereto, by means of which they roll in each case on one of the convex bearing members 34 and are retained in the transverse direction Y-Y in operation during a linear movement of the slider 24 in the running or longitudinal direction X-X. In the illustrated embodiment, the bearing members 34 are configured as round bars 42 that are each embedded into the side walls 30.

[0053] According to the disclosure, the bearing members 34 consist of a harder and more durable material than the longitudinal profile 22.

[0054] FIGS. 5 and 6 also illustrate that support rollers 32 roll on the upper convex bearing member 34-1 or on the lower convex bearing member 34-2. With regard to their axis of rotation, the support rollers 32 are arranged at different heights in the guiding track 26; in operation, they are braced against each other. The height of the guiding track 26 exceeds the diameter of the support rollers 32. This is accomplished by at least one of the support rollers 32 being configured in a height-adjustable manner, e.g. by means of an eccentric adjustment means. This adjustability is symbolized in the Figures by the arrows on the slider 24. The support rollers 34 all contribute to a load transfer, irrespective of whether they roll on the upper convex bearing member 34-1 or on the lower convex bearing member 34-2. The two convex bearing members 34, and also all support rollers 32, each have the same geometry, so that each support roller, depending on its positioning, can roll on both bearing members. The arrows shown in FIG. 5 illustrate on which convex bearing member 34 the support rollers 32 roll.

[0055] In the depicted exemplary embodiment, it can be seen that two support roller groups 54-1, 54-2 are provided, whose support rollers 32 are disposed in each case side-by-side in the running direction of the slider 24, wherein the first support roller group 54-1 is arranged closer to the door leaf 50 than the second support roller group 54-2. A group spacing 56 between the two support roller groups 54-1, 54-2 is greater than a support roller spacing 58 between individual support rollers 32.

[0056] The first support roller group 54-1 has more support rollers 32 than the second support roller group 54-2. It was found that the closeness to the center of gravity of the door leaf 50 has to be taken into account with regard to the number and arrangement of the support rollers 32 in order to obtain an optimum result. It was also found that it is advantageous if the support roller spacing 58 between individual support rollers 32 of the first support roller group 54-1 is smaller than the support roller spacing 58 of the second support roller group 54-2.

[0057] In the exemplary embodiment the first support roller group 54-1 has five support rollers 32, and the second support roller group 54-2 has two support rollers 32.

[0058] The two adjacent support rollers 32 of the two support roller groups 54, i.e. the support rollers 32 delimiting the group spacing 56 between the two support roller groups 54, contact the same bearing member 34, the lower bearing member 34-2 in the depicted exemplary embodiment.

[0059] The disclosure is not limited to the exemplary embodiments shown, but also includes other variants that are possible on the basis of the disclosure.