TELESCOPIC GUIDE SYSTEM FOR SLIDING STEPS

Abstract

A boarding device includes a shiftably arranged sliding step, a step plate, and a slide-out unit operatively connected to the step plate. The slide out unit is embodied to be variable in length in the slide-out direction of the step plate.

Claims

1. A boarding device comprising a shiftably arranged sliding step, having a step plate and a slide-out unit operatively connected to the step plate, wherein the slide-out unit is embodied to be variable in length in the slide-out direction of the step plate.

2. The boarding device according to claim 1, wherein the slide-out device comprises a front first linear element in the slide-out direction and of a rear second linear element in the slide-out direction, wherein the two linear elements are connected to one another via a linear element connection and are arranged essentially next to one another.

3. The boarding device according to claim 2, wherein the linear element connection of the two linear elements to one another is formed by at least one elongated hole and a guide roller displaceably mounted therein, wherein the elongated hole (34) is arranged in one of the linear elements and the guide roller is arranged on the other linear element and a longitudinal axis of the elongated hole extends in the slide-out direction.

4. The boarding device according to claim 3, wherein one of the linear elements is mounted on a first roller arranged on the vehicle in a stationary manner and is configured to be displaced thereon.

5. The boarding device according to claim 4, wherein the first roller arranged in a stationary manner is arranged on a base frame, into which the step plate is configured to be retracted and extended.

6. The boarding device according to claim 5, wherein a second roller is arranged on the liner element itself and rolls on a guideway, which is arranged on the boarding device and which extends in the slide-out direction.

7. The boarding device according to claim 6, wherein the second roller is arranged on a free rear end of the linear element in the slide-out direction and the first roller arranged in a stationary manner is arranged on a free front end of the base frame in the slide-out direction.

8. The boarding device according to claim 2, wherein the slide-out unit has two linear element connections arranged one behind the other in the slide-out direction.

9. The boarding device according to claim 2, wherein a respective slide-out unit is provided on both sides of the step plate.

10. The boarding device according to claim 1, wherein a relative movement distance between the two linear elements in the slide-out direction to one another is approximately 15% to 40% of a total distance from the stationary first roller to the second roller in the retracted state of the step plate.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The following figures show a preferred embodiment variation of the disclosure. This embodiment variation is to only be understood in an exemplary manner. The figures serve the purpose of clarifying the disclosure in general, it goes without saying that modifications and detail solutions are possible, in which:

[0024] FIG. 1: shows a boarding device according to the disclosure in perspective illustration,

[0025] FIG. 2: shows an enlarged sectional illustration of cropped linear elements from FIG. 1,

[0026] FIG. 3: shows a cropped side view of the boarding device from FIG. 1, in the retracted state of the sliding step,

[0027] FIG. 4: shows a cropped side view of the boarding device from FIG. 1, in the extended state of the sliding step and small roller distance, and

[0028] FIG. 5: shows a cropped side view of the boarding device from FIG. 1, in the extended state of the sliding step and enlarged roller distance.

DETAILED DESCRIPTION OF THE DRAWINGS

[0029] FIG. 1 shows the essential components and elements of a boarding device 20 according to the disclosure in perspective illustration, components and elements, which are not necessary for understanding the disclosure, are not shown.

[0030] Shiftably arranged sliding step 22 comprising a step plate 24, which can be extended and retracted via an operatively connected slide-out unit 26, can be seen.

[0031] It is essential for the disclosure that the slide-out unit 26 is embodied in a longitudinally variable manner in the slide-out direction of the step plate 24. The slide-out direction is illustrated by the arrow. In the shown exemplary embodiment, the longitudinal variability is effected by a front first linear element 28 and a rear second linear element 30 in the slide-out direction, which are connected to one another via a linear element connection 32. The two linear elements 28, 30 are and essentially arranged next to one another, thus shift parallel to one another. It goes without saying that the longitudinal variability is also at hand in the direction opposite to the slide-out direction, thus quasi the negative slide-out direction, thus in the direction of movement of the step plate 24.

[0032] In the shown exemplary embodiment, slide-out units 26 comprising linear elements 28, 30 are arranged on both sides of the step plate 24. A slide-out unit 26 is illustrated in an enlarged manner in FIG. 2.

[0033] The linear element connection 32 of the two linear elements 28, 30 is formed by an elongated hole 34 and a guide roller 36, which is displaceably mounted therein, wherein the elongated hole 34 is arranged in one of the two linear elements 28, 30, and the guide roller 36 is arranged on the other linear element 28, 30. A longitudinal axis of the elongated hole 34 extends along the slide-out direction.

[0034] Two linear element connections 34 arranged one behind the other in the slide-out direction are shown, wherein the two elongated holes 34 are arranged in the front first linear element 28 as a front elongated hole 34-1 and a rear elongated hole 34-2. A front guide roller 36-1 rotatably mounted on the rear linear element 30 extends into the front elongated hole 34-1 and a rear guide roller 36-2 likewise arranged on the rear linear element 30 extends into the rear elongated hole 34-2.

[0035] The rear second linear element 30 is mounted on a first roller 38-1, which is arranged in a stationary manner on the vehicle and can be displaced thereon. The first roller 38-1 arranged in a stationary manner is arranged on a base frame 40, into which the step plate 24 can be retracted and extended. A second roller 38-2 is arranged on the second rear linear element 30 itself and rolls on a guideway 42, which is arranged on the boarding device 20 or on the base frame 40, respectively, and extends in the slide-out direction. The second roller 38-2 is arranged on a free rear end 44 of the second rear linear element 30 in the slide-out direction, and the first roller 38-1 arranged in a stationary manner is arranged on a free front end 46 of the base frame 40 in the slide-out direction.

[0036] The FIGS. 3 to 5 clarify the effect of the longitudinal variability during the movement of the sliding step 22 or step plate 24, respectively. The sliding step 22 or the step plate 24, respectively, is shown in positions, which are extended at different distances, in FIG. 3 in the retracted state of the sliding step 22, in the FIGS. 4 and 5 in the extended state. The linear elements 28, 30 are illustrated in a cropped manner, side walls of the housing frame 40 are removed. The FIGS. 3 to 5 show the different relative positions of the guide rollers 36 and elongated holes 34 to one another. In FIG. 4, the roller distance between the first roller 38-1 arranged in a stationary manner on the base frame 40 and the second roller 38-2 arranged on the second rear linear element 30 itself is smaller than in the situation illustrated in FIG. 5.

[0037] The disclosure is thus based essentially on the knowledge of being able to vary the distance of the rollers 38 in different position of the sliding step 22. This can be made possible by means of the shown embodiment variation, but other options, which provide for a relative shifting between linear elements 28, 30 connected to the sliding step, are also conceivable.