TREAD STEP SEAL ASSEMBLY FOR A TREAD SYSTEM OF A VEHICLE

Abstract

A modular tread step seal assembly includes a tread step module which, using a drive unit, is movable along a movement axis from a retracted position in the direction of an extended position and vice versa. The tread step module has a tread surface extending in a tread surface plane oriented parallel to the movement axis and a tread step module front edge at a front end directed towards the outside of the vehicle. The assembly includes a sealing strip attached to the tread step module front edge and extends along the same, substantially in a sealing strip plane. The sealing strip and tread step module define, perpendicularly to the movement axis, a vertical assembly height. The sealing strip and tread surface are disposed at an angle to each other. The wherein assembly height and the angle between the sealing strip and the tread surface are adjustable via a modular mechanism.

Claims

1. A modular tread step seal assembly for a tread system implemented in a vehicle, the assembly comprising: a tread step module, which, using a drive unit, is moved along a movement axis (A) from a retracted position in the direction of an extended position and vice versa, wherein the tread step module has a tread surface extending in a tread surface plane oriented parallel to the movement axis (A), and wherein the tread step module has a tread step module front edge at a front end directed towards the outside of the vehicle, a sealing strip, which is attached to the tread step module front edge and extends along the tread step module front edge substantially in a sealing strip plane, wherein the sealing strip and the tread step module define, perpendicularly to the movement axis (A), a vertical assembly height (H), and wherein the sealing strip and the tread surface are disposed at an angle (β) to each other, wherein the assembly height (H) and the angle (β) between the sealing strip and the tread surface are adjusted using a modular mechanism.

2. The assembly according to claim 1, wherein the modular mechanism comprises a first adjustment member and a second adjustment member.

3. The assembly according to claim 2, wherein the first adjustment member has at a first end a first cranked attaching bead and, at a second end opposite the first end, a receiving pocket, wherein a second cranked attaching bead is arranged between the first end and the second end.

4. The assembly according to claim 3, wherein the first and second cranked attaching beads protrude from a first side of the first adjustment member, that the receiving pocket also protrudes from the first side, and that the receiving pocket-is at least partially open in the direction of a second side of the first adjustment member opposite the first side.

5. The assembly according to claim 4, wherein a plurality of latching lugs, are formed on the first cranked attaching bead.

6. The assembly according to claim 1, wherein a first attaching bead receiving portion for receiving a first cranked attaching bead is formed on an underside of the tread step module facing away from the tread surface plane, wherein the receiving portion has a plurality of latching recesses for receiving the plurality of latching lugs so that the first adjustment member adopts a plurality of angular positions relative to the first attaching bead receiving portion.

7. The assembly according to claim 1, wherein, spaced apart from the first attaching bead receiving portion, in the direction towards the inside of the vehicle, a group (G) of second attaching bead receiving portions is formed, which are disposed one behind the other relative to the movement axis (A).

8. The assembly according to claim 1, wherein the second adjustment member has a bead-like flange at a first end, and a receiving section at a second end opposite the first end.

9. The assembly according to claim 8, wherein the bead-like flange of the second adjustment member is received with a positive fit in one of the second attaching bead receiving portions, wherein the second cranked attaching bead of the first adjustment member is received in the receiving section of the second adjustment member with a positive fit.

10. The assembly according to claim 3, wherein the receiving pocket formed on the first adjustment member is configured for positively receiving a sealing strip bead formed on the sealing strip.

11. The assembly according to claim 1, wherein the first and/or second adjustment members are formed like a linkage.

12. The assembly according to claim 1, wherein the first and/or second adjustment members extend parallel to and along the sealing strip.

13. The assembly according to claim 12, wherein the first attaching bead receiving portion is configured in the form of a receiving groove, which extends parallel to and in a direction along the tread step module front edge, and that the first cranked attaching bead of the first adjustment member extends parallel to and in a direction along the tread step module front edge.

14. The assembly according to claim 12, wherein the second attaching bead receiving portions are each configured in the form of receiving grooves, which extend parallel to and in a direction along the tread step module front edge, and that the bead-like flange of the second adjustment member extends parallel to and in a direction along the tread step module front edge.

15. The assembly according to claim 12, wherein the receiving pocket of the first adjustment member is configured in the form of a receiving groove, which extends parallel to and in a direction along the tread step module front edge, and that the sealing strip bead extends parallel to and in a direction along the tread step module front edge.

16. The assembly according to claim 12, wherein the receiving section of the second adjustment member is configured in the form of a receiving groove, which extends parallel to and in a direction along the tread step module front edge, and that the second cranked attaching bead of the first adjustment member extends parallel to and in a direction along the tread step module front edge.

17. The assembly according to claim 2, wherein the first adjustment members forms the sealing strip.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0038] The disclosure is further explained with reference to the following Figures. They should be understood merely to be an example, and are not supposed to limit the disclosure.

[0039] In the Figures:

[0040] FIG. 1 shows a perspective view of a section of a tread step module front edge of a tread system including a sealing strip;

[0041] FIG. 2 shows a schematic cross-sectional view of a tread step seal assembly according to the disclosure in the assembled state;

[0042] FIG. 3 shows a schematic cross-sectional view of a tread step module as an individual part of an inventive tread step seal assembly according to FIG. 2;

[0043] FIG. 4 shows a schematic cross-sectional view of a first adjustment member as an individual part of an inventive tread step seal assembly according to FIG. 2; and

[0044] FIG. 5 shows a schematic cross-sectional view of a second adjustment member as an individual part of an inventive tread step seal assembly according to FIG. 2.

DETAILED DESCRIPTION OF THE DRAWINGS

[0045] FIG. 2 illustrates the tread step seal assembly 1 on which the disclosure is based in a cross-sectional view in the assembled state. The assembly 1 is used in a vehicle, particularly a rail vehicle, as a so-called boarding aid. As is shown, the assembly 1 comprises a tread step module 2, which, using a drive unit that is not shown, can be moved along a movement axis A from a retracted position in the direction of an extended position and vice versa. The tread step module 2 has a tread surface 3, which is subjected to load by stepping when passengers enter and exit. The tread surface 3 extends in a tread surface plane oriented parallel to the movement axis A. The tread step module 2 has a tread step module front edge 4 at a front end directed towards the outside of the vehicle.

[0046] As is shown in FIG. 1, the assembly also includes a sealing strip 5, which is attached to the tread step module front edge 4 and extends along the tread step module front edge 4 substantially in a sealing strip plane, wherein the sealing strip 5 and the tread step module 2 define, perpendicularly to the movement axis A, a vertical assembly height H (FIG. 2), and wherein the sealing strip 5 and the tread surface 3 are disposed at an angle β to each other.

[0047] The assembly height H and the angle β between the sealing strip 5 and the tread surface 3 can be adjusted via a modular mechanism. The above-mentioned modular mechanism includes a first adjustment member 6 and a second adjustment member 7. The first adjustment member 6 has at a first end a first cranked attaching bead 8 and, at a second end opposite the first end, a receiving pocket 9, wherein a second cranked attaching bead 10 is arranged between the first end and the second end. This is again shown in detail in FIG. 4. The first and second cranked attaching beads 8, 10 protrude from a first side 11 of the first adjustment member 6. The receiving pocket 9 also protrudes from the first side 11. Moreover, the receiving pocket 9 is at least partially open in the direction of a second side 12 of the first adjustment member 6 opposite the first side 11.

[0048] As can be easily seen particularly in FIG. 4, two latching lugs 13 are formed on the first cranked attaching bead 8. FIG. 3 shows that a first attaching bead receiving portion 15, which is provided for receiving the first cranked attaching bead 8 (FIG. 2), is formed on an underside 14 of the tread step module 2 facing away from the tread surface plane, wherein the receiving portion 15 has three latching recesses 16 for receiving the latching lugs 13, so that the first adjustment member 6 can adopt two angular positions relative to the first attaching bead receiving portion 15.

[0049] As is shown in FIG. 3, a group G of three second attaching bead receiving portions 17, which are disposed one behind the other relative to the movement axis A, is formed spaced apart from the first attaching bead receiving portion 15, in the direction towards the inside of the vehicle.

[0050] The second adjustment member 7 has a bead-like flange 18 at a first end, and a receiving section 19 at a second end opposite the first end (FIG. 5). The bead-like flange 18 of the second adjustment member 7 can be received with a positive fit in one of the second attaching bead receiving portions 17 (see FIG. 2), wherein the second cranked attaching bead 10 of the first adjustment member 6 can be received in the receiving section 19 of the second adjustment member 7 with a positive fit (also FIG. 2). The receiving pocket 9 formed on the first adjustment member 6 is configured for positively receiving a sealing strip bead 20 formed on the sealing strip 5, which is illustrated by way of example in FIG. 2.

[0051] If the second adjustment member 7 is omitted, the first adjustment member 6 may be disposed at an angle of about or exactly 90° relative to the tread surface 3. By providing a second adjustment member 7, an angle β deviating from a perpendicular position of the first adjustment member 6 relative to the tread surface 3 can be set by disposing the bead-like flange 18 in one of the second attaching bead receiving portions 17 and disposing the second cranked attaching bead 10 in the receiving section 19. Depending on which of the second attaching bead receiving portions 17 the bead-like flange 18 is fixed in, different angles R can be set. Moreover, different lengths of the first and/or second adjustment members 6, 7 can be provided due to the plurality of second attaching bead receiving portions 17. Thus, the degrees of freedom for height and angle settings are thus increased.