CN108202672A - For the step of difference in height to be crossed by personnel for motor vehicle and/or trailer - Google Patents

Abstract

A kind of step (10) being used for for founding motor vehicle on the ground and/or crossing difference in height by personnel for vertical trailer on the ground, the step carries at least one step face (11), the step face is arranged at least one carrier element (20, 21) place, wherein, step (10) is used to guide at least one carrier element (20 at least one, 21) induction element (23, 24), and at least one carrier element (20, and at least one induction element (23 21), 24) it is movably disposed back and forth relative to each other and can locking relative to each other in mutiple positions.

Description

Step ladder for passing people over height differences for motor vehicles and/or trailers

technical field

The invention relates to a step ladder (Tritt) for passing people over height differences for a motor vehicle standing on the ground and/or for a trailer standing on the ground, the step ladder has at least one step surface, the step step The step surface is arranged on at least one carrier element.

Background technique

Document WO 1991/14585 A1 describes a step-ladder system that can be joined together with two carrier elements between which a tread is arranged. The step ladder system is arranged on a swingable liftgate of a motor vehicle. The step ladder system can be folded away from each other when in use and can be folded together when not in use.

Document DE 20 2015 105 315 U1 refers to a ladder which can be accommodated in a liftgate of a motor vehicle. For use, the ladder can be pulled out of the liftgate and swung toward the ground. When not in use, the ladder is swung off the ground and pushed back into the liftgate.

Document DE 10 2014 200 990 A1 discloses a step-ladder system which can likewise be pushed into a liftgate of a motor vehicle when not in use and which can be pushed out of the liftgate when in use And swing toward the ground. The step system, which has been pushed into the liftgate, has a step which, in the pushed-in state, ends flush with the edge of the liftgate and thus is integrated almost imperceptibly into the in the liftgate.

Contents of the invention

The invention has the object of improving a step ladder of the type mentioned at the outset in such a way that at least one step surface can be positioned at a variable distance above the ground.

The invention solves the proposed task by means of a step ladder for passing persons over height differences for a motor vehicle standing on the ground and/or for a trailer standing on the ground, the step ladder having at least one step Step surface, which is arranged on at least one carrier element, wherein the step ladder has at least one guide element for guiding the at least one carrier element, and the at least one carrier element and the at least one guide element are movable back and forth relative to each other ground and can be locked relative to each other in multiple positions. As a result, the step ladders can be pushed apart and together when required and locked in a defined position above the ground. Pushing away from each other and together can take place stepwise or steplessly. Thus, at least one step surface, which can also be configured as a step rung, can be positioned at variable distances above the ground in order to use the step surface at a plurality of selectable distances above the ground Used to overcome height differences. This is advantageous, for example, when persons of different heights want to use the step ladder in order to reach a certain level of the motor vehicle or trailer from the ground. The step ladder can then be adjusted to its different ergonomic requirements. Since at least one step surface, which can also be configured as a step rung, can be positioned at a variable distance above the ground, the steps can be pushed away from each other to such an extent that the steps correspond to accident prevention Regulations on measures (Unfallverhütungsvorschrift). When not in use, the steps can be pushed together in a space-saving manner. At least one carrier element can be configured in the shape of a rod.

At least one carrier element and/or at least one guide element can have a slide-type guide or a slide in order to be able to move the at least one carrier element and the at least one guide element relative to each other. The slot-like guide can be configured in the form of a slot and the slide can be configured in the shape of a pin, wherein the pin-shaped slide engages in the slot-shaped slot-like guide and can be mounted on the slot-like guide. Move back and forth. The ends of the slit-shaped slide guide can at the same time form stops which limit the displacement movement.

In an alternative embodiment, at least one carrier element and at least one guide element are components of a pneumatic spring. The at least one guide element is then preferably in the form of a cylinder, in which the carrier element, which is either also in the form of a cylinder or in the form of a piston, can be moved back and forth.

At least one guide element can be arranged pivotably on a mounting frame that can be fastened to a motor vehicle or a trailer. For this purpose, at least one guide element can be hinged at the mounting frame by means of bearing pins.

If at least one step surface is pivotably arranged on at least one carrier element, then the step surface can be folded out for use at a respectively selected distance above the ground and folded back in a space-saving manner when not in use. superior.

In order to limit the pivoting movement when the at least one step surface is turned over, a cross member forming a stop for the at least one step surface can be arranged at the end of the carrier element.

The step surface can be pivotably arranged on the at least one carrier element by means of pivot pins, wherein the pivot pins engage in openings and/or spherical caps which can be arranged in the assembly frame. In this way it is ensured that the folded-out stepping surface reliably maintains a clearance above the ground in this position during use.

In order to be able to lock the at least one step surface when not in use, locking elements can be arranged on the at least one guide element and on the at least one step surface. In a simple but efficient construction, a bearing pin can engage in an opening provided in at least one step surface and/or a spherical crown, with which bearing pin the at least one guide element is articulated on the assembly frame.

For a space-saving arrangement of the step ladder, the assembly frame can be arranged in a recess provided in the motor vehicle or trailer.

The step ladder can be retrofittable. Thus, the step ladder can be used in new motor vehicles and trailers as well as in already existing motor vehicles and trailers. In a preferred embodiment, the mounting frame can have an L-shaped profile. Such an L-shaped profile is suitable for installation for retrofitting both in new motor vehicles and trailers and in already existing motor vehicles and trailers.

The step ladder can be arranged in a particularly space-saving manner on the inner side of the liftgate which can be pivoted outwards. However, it is also possible to mount the step ladder on the outside of the motor vehicle or trailer. The step ladder can be advantageously used, for example, in flatbed vehicles, motorhomes, horse trailers or trailers for the agricultural sector.

Description of drawings

An exemplary embodiment of the invention is explained in more detail subsequently with reference to the drawings.

In detail:

Figure 1 shows a top view towards the pushed-together step ladder with the stepped faces closed;

FIG. 2 shows a perspective view towards the step ladder of FIG. 1 in a state pushed away from each other with the stepped treads turned over;

Figure 3 shows a sectional view along line A-A in Figure 1;

Figure 4 shows a sectional view along the line B-B in Figure 1;

FIG. 5 a shows a perspective view towards the stepped step inserted into the liftgate with closed step faces in the pushed-together state;

Fig. 5b shows a perspective view towards the pushed-together stepladder of Fig. 5a with the tread faces turned over;

Fig. 5c shows a perspective view towards the stepladders of Fig. 5a which have been pushed away from each other with the stepped face turned over;

FIG. 6 shows a sectional view through a first arrangement variant of the liftgate and the assembly frame;

FIG. 7 shows a sectional view through a second arrangement variant of the liftgate and assembly frame.

List of reference signs

10 steps

11 step surface

20 carrier elements

21 carrier element

22 swing pin

23 Guide elements

24 Guide elements

25 Chute type guide

26 Chute type guide

27 sliders

28 sliders

29 Support pin

30 wall

31 spacer sleeve

32 spherical crown

40 spacer sleeve

41 spacer sleeve

42 holes

50 liftgate

51 Handle cavity

60 notches

61 wall

62 wall

200 assembly frame

201 Transom.

Detailed ways

FIGS. 1 and 2 show a step 10 for passing a person over a height difference for a motor vehicle (not shown here in greater detail) and/or for a trailer vehicle (not shown here likewise). The step ladder 10 is provided with a step surface 11 on which a person can step with his or her feet in order to overcome the height difference. The step surface 11 is mounted pivotably on carrier elements 20 and 21 by means of pivot pins 22 (see also FIG. 4 ). The swivel pin 22 penetrates the rods 20 and 21 and thus extends over the entire width of the tread surface 11 . A distance sleeve 40 is arranged between the carrier element 21 and the step surface 11 , and a distance sleeve 41 is arranged between the carrier element 21 and the fastening frame 200 . The spacer sleeves 40 and 41 ensure an essentially play-free centering of the carrier elements 20 and 21 with the tread surface 11 .

The carrier elements 20 and 21 are arranged movable back and forth in the guide elements 23 and 24 . As a result, the carrier elements 20 and 21 can be pushed into and pushed out of the guide elements 23 and 24 . In this way, the steps 10 can be pushed away from each other and together.

The guide elements 23 and 24 are provided with slit-shaped slotted guides 25 and 26 into which pin-shaped slides 27 and 28 engage and can thus be positioned in the slotted guide 25 and 26 to move back and forth. The ends of the slit-shaped guides 25 and 26 form stops by means of which the movement paths of the sliders 27 and 28 are limited.

The guide elements 23 and 24 are pivotably articulated at the mounting frame 200 by means of bearing pins 29 (see also FIG. 3 ). The mounting frame is fastened to a wall 30 of the motor vehicle or trailer (see FIG. 3 ). The wall 30 can be, for example, a swingable liftgate 50 (see FIGS. 5 a to 5 c ). A spacer sleeve 31 is mounted between the guide element 23 and the mounting frame 200 in order to at least largely avoid play between the guide element 23 and the mounting frame 200 .

Arranged at the lower ends of the carrier elements 20 and 21 is a transverse beam 201 , which is fastened to the carrier elements 20 and 21 by means of swivel pins 22 . The crossbeam 201 forms a stop for the tread surface 11 which limits the pivoting movement of the tread surface 11 when it is folded open.

When the step 10 is not in use, the treads 11 are closed and the steps 10 are pushed together (see Figures 1 and 5a). In order to be able to securely hold this position, the bearing pin 29 engages into a spherical crown 32 in the tread surface 11 (see FIG. 3 ), whereby the tread surface 11 is locked in the closed position. The step surface 11 has a handle recess 51 into which a person can insert, for example with at least one finger, in order to fold the step surface 11 outwards.

When the step surface 11 has been turned over (see FIG. 5 b ), the step surface exists in the first use position at a first distance above the ground, not shown, so that a person can step on the step surface with his feet. Step 11, so as to cross the height difference. In the first state of use, the step surface 11 rests on the mounting frame 200 so that the step surface 11 is locked at this first distance above the ground. An aperture 42 is located in the assembly frame 200 into which the pivot pin 22 engages. Through this engagement, the folded-out step surface 11 can additionally be locked during use, so that the guide elements 23 and 24 , which are pivotably mounted in the assembly frame 200 , cannot pivot outward in an undesired manner.

By pulling the step surface 11 in FIG. 5 b to the right out of the assembly frame 200 , the locking of the step surface 11 in the assembly frame 200 can be released and the steps 10 can be pushed apart. The step surface 11 then assumes the second position of use at a second distance above the ground (see FIG. 5 c ). If it is desired to return the step 10 from the state shown in FIG. 5c to the state according to FIG. 5a when not in use, the steps 10 are first pushed together so that the step occupies the position corresponding to FIG. 5b. status. Finally, the step surface 11 is closed and the space-saving state according to FIG. 5 a is obtained for the non-use situation.

The assembly frame 200 has an L-shaped profile. The mounting frame can thus be fitted in a recess 60 of the wall part 61 (see FIG. 6 ) or externally onto the wall part 62 (see FIG. 7 ). In new motor vehicles and trailers, the variant shown in FIG. 6 is generally preferred. The variant shown in FIG. 7 is particularly well suited when the step ladder 10 is to be retrofitted with a frame 200 in an already standing motor vehicle or trailer.

Claims (10)

1. a kind of be used to for founding motor vehicle on the ground and/or cross height by personnel for vertical trailer on the ground The step (10) of difference, the step carry at least one step face (11), and the step face is arranged at least one carrier element At (20,21), which is characterized in that the step (10) have it is at least one for guide at least one carrier element (20, 21) induction element (23,24), wherein, at least one carrier element (20,21) and at least one induction element (23,24) it is movably disposed back and forth relative to each other and can locking relative to each other in mutiple positions.

2. the step (10) according to preceding claims, which is characterized in that at least one carrier element (20,21) And/or at least one induction element (23,24) has chute-type guide portion (25,26) or sliding block (27,28).

3. step (10) according to any one of the preceding claims, which is characterized in that at least one induction element (23,24) it is swingably arranged at the assembling framework (200) that can be fixed at the motor vehicle or the trailer.

4. step (10) according to claim 3, which is characterized in that the assembling framework (200) is arranged in recess (60) In, the recess is arranged in the motor vehicle or the trailer.

5. step (10) according to any one of the preceding claims, which is characterized in that at least one step face (11) it is swingably arranged at least one carrier element (20,21).

6. according to claim 5 with reference to the step (10) described in claim 3 or 4, which is characterized in that step face (11) profit It is swingably arranged at least one carrier element (20,21), and in the assembling framework with pin (22) is swung (200) it is provided in for the trepanning of engagement of the swing pin (22) and/or spherical part (42).

7. step (10) according to any one of the preceding claims, which is characterized in that in the carrier element (20,21) End be disposed with the crossbeam (201) that stopper section is formed at least one step face (11).

8. step (10) according to any one of the preceding claims, which is characterized in that at least one guiding element Locking element is mounted at part (23,24) and at least one step face (11), so as to locking institute when not in use State at least one step face (11).

9. step (10) according to any one of the preceding claims, which is characterized in that the step is placed in can be outside At the inside of the lift car door (50) of swing.

10. step (10) according to any one of the preceding claims, which is characterized in that the step can install additional.