DE102022000427A1 - Personal locomotion device, in particular roller skis, skateboards or the like, for rolling locomotion on a surface - Google Patents

Abstract

A personal transportation device (2), in particular a roller ski (2), a skateboard or the like, for rolling locomotion on a surface, in particular driven by a downhill force on a sloping surface. A longitudinal and transverse rolling device of a rolling arrangement (5) of the locomotion device (2) enables superimposed rolling movements along a longitudinal center axis (7) and a transverse axis (9, 10). In addition, the rolling arrangement (5) has at least one braking device (14), by means of which a transverse braking force can be generated, which increases the rolling resistance of the transverse rolling device and thereby has a braking effect on rolling movements along the transverse axis (9, 10), the transverse braking force being exerted by the person driving can be changed via the standing area (4). A rolling arrangement (5) for such a personal transportation device (2) is also described.

Description

The invention relates to a personal transportation device, in particular a roller ski, a skateboard or the like, for rolling locomotion on a surface, in particular driven by downhill force on a sloping surface, the transportation device having at least one standing surface for at least one foot of a person driving and at least one rolling arrangement for rolling Locomotion of the locomotion device on the ground, wherein the locomotion device extends along a longitudinal central axis, and wherein the rolling arrangement comprises a longitudinal rolling device, which enables a rolling movement of the locomotion device along the longitudinal central axis, and a transverse rolling device, which enables a rolling movement of the locomotion device along a transverse axis which at an angle to the longitudinal center axis, preferably perpendicular to the longitudinal center axis.

Furthermore, the invention relates to a rolling arrangement, in particular for such a personal transportation device.

From the disclosure document U.S. 2012/0126523 A1 a roller ski has become known which is intended to give a skier a skiing experience similar to that of a downhill ski on a snow base. The previously known roller ski is intended to enable lateral gliding on a flat, solid surface, comparable to drifting or carving with a downhill ski on a snow base. For this purpose, the ski includes a central platform that is adjustable in height and longitudinal angle for fixing a respective skier's foot with the aid of a ski binding system. A front roller assembly along the longitudinal centerline of the center platform and a rear roller assembly, identical in construction along the longitudinal centerline of the center platform, each include a pair of fixed rollers that allow rolling motion along the longitudinal centerline. In addition, a roller that can be rotated perpendicularly to the center platform is provided in each case. The rotatable roller can align itself freely so that, depending on its rotational position, it enables rolling movements in any direction along the ground - including transverse to the longitudinal center axis. A height difference between the fixed rollers and the rotating rollers allows the skier to switch between the fixed and rotating rollers by shifting their weight or by tilting the ski, which is said to result in the driving feel and control characteristics of actual snow skiing.

The present invention has set itself the task of further developing the previously known personal transportation device in such a way that a personal transportation device results with improved driving feel and control properties that come even closer to actual snow skiing.

The object is achieved by a personal transportation device with the features of claim 1.

The personal mobility device according to the invention is characterized in that the longitudinal and transverse rolling devices allow rolling movements that overlap one another along the longitudinal and transverse axes. Furthermore, the at least one rolling arrangement has a braking device, by means of which a transverse braking force can be generated, which increases the rolling resistance of the transverse rolling device and thereby has a braking effect on rolling movements along the transverse axis. Finally, the lateral braking force can be changed by the person driving via the standing area.

Thanks to the kinematics of the rolling arrangement, there is a surprisingly ski-like driving experience, e.g. B. on paved roads. Due to the lateral braking function transverse to the direction of travel (longitudinal central axis), there is a movement sequence and a braking effect that are similar to lateral drifting on the ski edges when skiing on a snow surface, and leads to a very similar steering behavior. At the end of a turn, the person driving can end the lateral braking effect, as with snow skiing, and follow a straight line. The personal mobility device thus enables a ski-like rotation transverse to the direction of travel.

The transverse axis preferably runs perpendicular to the longitudinal central axis.

It is particularly advantageous if the standing surface is mounted relative to the rolling arrangement or the rolling arrangements in such a way that the person driving can change the inclination of the standing surface relative to the rolling arrangement or the rolling arrangements about a pivot axis that runs parallel to the longitudinal center axis or coincides with it , and thereby the transverse braking force is variable.

In the case of a particularly preferred exemplary embodiment, the lateral braking force is lowest in a basic position of the standing surface in relation to the rolling arrangement or the rolling arrangements, and is in particular zero.

In this sense, the braking device is preferably designed in such a way that the transverse braking force is distributed along the transverse axis in the locomotion device by the person driving is lowest in the area of the rolling arrangement, in particular is zero.

Alternatively or additionally, it is particularly advantageous for a skiing-like driving experience if the braking device is designed in such a way that the lateral braking force increases with increasing inclination of the standing surface relative to the rolling arrangement or the rolling arrangements.

The braking device is therefore preferably designed in such a way that the transverse braking force increases along the transverse axis in the region of the rolling arrangement as the weight of the person driving becomes increasingly unbalanced.

The same applies to an exemplary embodiment in which the braking device is designed in such a way that the transverse braking force can be changed, in particular between its lowest point, due to an inclination of the standing surface in relation to the rolling arrangement or the rolling arrangements brought about by the person traveling in the mobility device and its maximum value.

In this sense, the result is a driving experience that is particularly reminiscent of skiing on a snowy surface, in that the braking device is designed in such a way that the lateral braking force can be changed, in particular between its lowest and its maximum, due to the weight being introduced into the mobility device by the person driving via the standing area Value can be changed without thereby affecting the rolling resistance of the longitudinal rolling device.

Analogous to downhill skiing on a snow base, cornering and braking are carried out by turning the ski and increasing the braking effect transversely to the longitudinal axis of the ski, with the ski still being able to slide or roll well in the longitudinal direction.

For functionally reliable control of the personal mobility device according to the invention and for reasons of personal protection, it is advantageous if the standing surface is provided with at least one attachment for the foot, shoe, boot or similar of the person driving, in particular with at least one safety binding like a ski safety binding.

Preferably, the locomotion device has a platform on the upper side of which the standing area is provided and on the underside of which the rolling arrangement or rolling arrangements are provided. The platform can correspond to a conventional downhill ski in terms of shape and materials.

In the case of a particularly preferred embodiment, the platform provided with the standing surface is mounted relative to the rolling arrangement or the rolling arrangements in such a way that the person driving can change the inclination of the platform relative to the rolling arrangement or the rolling arrangements by shifting their weight, whereby the lateral braking force can be changed. Thanks to the control of the locomotion device by changing the inclination of the platform, the driving experience corresponds in a particularly pronounced way to the driving experience of downhill skiing on a snow base.

A particularly preferred exemplary embodiment that can be controlled without directional restrictions results from the longitudinal and/or transverse rolling device enabling an unlimited rolling movement along the longitudinal or transverse axis and/or the rolling arrangement being designed as an all-round rolling arrangement.

The rolling arrangement can be designed in various designs, for example the longitudinal and the transverse rolling device of the rolling arrangement can have rolling surfaces arranged next to one another or radially to one another.

In the case of a particularly preferred compact design, the longitudinal and transverse rolling devices of the rolling arrangement are designed to be integrated into one another.

Another measure is to increase the diameter of the roll or increase the diameter of the small roll. This increases the possibility of driving over smaller obstacles such as stones.

A preferred exemplary embodiment in which the rolling arrangement is designed as a pair of rolling arrangements has increased stability, which has two longitudinal and transverse rolling devices arranged offset to one another along the longitudinal center axis at the same height and along the transverse axis, and at least one braking device.

It goes without saying that each individual transverse roller device of a roller arrangement defines a transverse axis which does not necessarily have to coincide with the transverse axis of another transverse roller device. Preferably, however, all transverse axes of the locomotion device run at least parallel and preferably perpendicular to the longitudinal center axis. In the case of two roller directions that are combined to form a pair of roller arrangements, the two transverse axes of the transverse roller devices preferably coincide.

An exemplary embodiment is also characterized by increased stability, in which the locomotion device has at least two roller assemblies, preferably two pairs of roller assemblies, which are offset from one another along the longitudinal center axis, with the standing surface preferably being arranged between the two roller assemblies, in particular the two pairs of roller assemblies .

In the case of this exemplary embodiment, the locomotion device according to the invention is constructed with a front roller arrangement or a front roller arrangement pair and a rear roller arrangement or a rear roller arrangement pair. By shifting their weight, the person driving can place a greater burden on the front or rear roller assembly or the pair of front or rear roller assemblies and relieve the other. The person driving can set the inclination of the standing area or the platform provided with the standing area differently in relation to the front roller assembly or the front pair of roller assemblies than in relation to the rear roller assembly or the rear pair of roller assemblies. This in turn has the effect that the lateral braking force effective at the front of the ski differs from that at the rear, and the ski can therefore simply be rotated about an axis running transversely to the platform. This turning movement is similar to the turning movement of a ski when skiing on a snow base, for example when the skier executes a parallel turn.

The roller assembly, in particular a pair of roller assemblies, is preferably attached to the platform so that it can pivot about a pivot axis, the pivot axis preferably running parallel to the longitudinal center axis or coinciding with the longitudinal center axis. In particular, the ability to pivot can serve the purpose that, as already mentioned above, the lateral braking device can be controlled by changing the inclination between the platform and the rolling arrangement in relation to the pivot axis.

Alternatively or additionally, in a further preferred embodiment, the longitudinal rolling device of a rolling arrangement, preferably the longitudinal rolling devices of a pair of rolling arrangements together, is attached to a platform provided with the standing surface such that it can pivot about a steering pivot axis, the steering pivot axis running perpendicular to the longitudinal central and transverse axes.

Preferably, the longitudinal rolling device of a rolling arrangement, in particular the longitudinal rolling devices of a rolling arrangement pair together, is attached to a platform provided with the standing surface so that it can pivot about the steering pivot axis in such a way that the rotational position of the longitudinal rolling device(s) in relation to the steering pivot axis depends on the inclination of the The platform for the rolling arrangement or for the pair of rolling arrangements can be changed, in particular adjusted, in relation to the longitudinal central axis.

Thanks to these measures, the mobility device according to the invention can also be steered to execute curves in addition to being controlled with the help of the variable transverse braking force, in that the rotational position of the longitudinal rolling device relative to the longitudinal center axis of the mobility device can be changed or adjusted by changing the platform inclination in the manner of a conventional skateboard. This additional control option leads to a driving behavior of the locomotion device according to the invention that is even more similar to snow skiing and in particular to what is known as carving on a snow base.

An exemplary embodiment in which the braking device has a mechanical and/or hydraulic and/or electromagnetic spring device which resiliently supports the roller arrangement, in particular a pair of roller arrangements, with respect to the platform is characterized by particularly convenient controllability.

In a particularly preferred exemplary embodiment, the platform is acted upon by the spring device into a basic position in which the lateral braking force is zero. Without external force, the locomotion device consequently assumes the basic position or returns to it automatically.

In this basic position, the axes of rotation of all transverse rolling devices are preferably arranged parallel to the longitudinal center axis or coincide with it. Furthermore, the axes of rotation of all longitudinal rolling devices run perpendicular to the longitudinal center axis in the basic position. Finally, the standing surface preferably extends parallel to the longitudinal central axis and parallel to the axes of rotation of the longitudinal rolling devices.

An exemplary embodiment is particularly preferred in which the spring force constant or characteristic curve of the spring device can be adjusted. Thanks to this measure, the mobility device can be individually adapted to the characteristics of the person (e.g. weight) and different driving conditions (floor covering, slope).

Preferably, the braking device is designed such that the transverse braking force mechanically, in particular by friction, or electro can be introduced magnetically into the transverse rolling device.

In the case of a particularly preferred exemplary embodiment, the braking device comprises a brake booster, which preferably has a wedge and/or cam element and/or a hydraulic brake booster.

A variant of the invention is characterized by a particularly compact design, in which the braking device acts directly on a rolling surface of the transverse rolling device.

A low-wear and effective braking device results in that the braking device acts on a braking surface which is connected to rolling surfaces of the rolling arrangement in a rotationally fixed manner at least about an axis of rotation. The braking device is preferably designed as a disc brake, in particular as a hydraulic disc brake.

A variant of the invention is characterized by a compact design and a reduction in production costs, in which the braking device serves as a braking device for two rolling devices of a rolling arrangement pair.

Although the use of a rolling arrangement for a personal transportation device is to be regarded as particularly advantageous, the special kinematics and design of the rolling arrangement described in this document are also regarded as inventive, independently of this specific use.

The rolling arrangement according to the invention is characterized in that the rolling arrangement comprises a first rolling device, which enables a rolling movement along a first movement axis, and a second rolling device, which simultaneously with and superimposed with the rolling movement made possible by the first rolling device along the first movement axis, a rolling movement allows along a second axis of movement, which is at an angle, preferably perpendicular, to the first axis of movement. The rolling arrangement has a braking device, by means of which a braking force can be generated which increases the rolling resistance of the second rolling device and thereby has a braking effect on rolling movements along the second axis of movement, with the braking device comprising a control element which is used to adjust the braking force on the second rolling device acts, is pivotable about the first axis of movement of the first rolling device or an axis parallel thereto.

• 1 eine perspektivische Ansicht einer Person, die mit einem Paar von Rollenskiern nach einen ersten Ausführungsbeispiel der Erfindung ausgestattet ist,
• 2 bis 5 verschiedene Ansichten eines einzelnen Rollenskis gemäß dem ersten Ausführungsbeispiel aus 1,
• 6 bis 11 ein Rollanordnungspaar des Rollenskis gemäß dem ersten Ausführungsbeispiel aus den 1 bis 5 in verschiedenen Ansichten und Zuständen,
• 12 eine perspektivische Ansicht eines zweiten Ausführungsbeispiels eines Rollenskis,
• 13 bis 16 ein Rollanordnungspaar des Rollenskis gemäß dem zweiten Ausführungsbeispiel aus 13 in verschiedenen Ansichten,
• 17 und 18 eine Seitenansicht und eine perspektivische Ansicht eines dritten Ausführungsbeispiels eines Rollenskis,
• 19 eine Schnittdarstellung einer Rollanordnung des Ausführungsbeispiels gemäß den 12 bis 16,
• 20 und 22 perspektivische Ansichten alternativen Rollanordnungen,
• 23 und 24 zwei Schnittdarstellungen eines alternativ ausgeführten Rollanordnungspaares,
• 25 und 26 zwei Ansichten eines weiteren Ausführungsbeispiels in Form eines Skateboards,
• 27 eine perspektivische Ansicht eines weiteren Ausführungsbeispiels in Form eines Rollenskis,
• 28 und 29 eine Draufsicht auf ein Rollanordnungspaar des Rollenskis nach 27 in zwei verschiedenen Stellungen und
• 30 und 31 weitere Ansichten des Rollanordnungspaars des Rollenskis nach 27.

The invention is explained below using exemplary embodiments. The figures show:

• 1 a perspective view of a person who is equipped with a pair of roller skis according to a first embodiment of the invention,
• 2 until 5 different views of a single roller ski according to the first embodiment 1 ,
• 6 until 11 a pair of roller assemblies of the roller ski according to the first embodiment of FIGS 1 until 5 in different views and states,
• 12 a perspective view of a second embodiment of a roller ski,
• 13 until 16 a pair of roller assemblies of the roller ski according to the second embodiment 13 in different views,
• 17 and 18 a side view and a perspective view of a third embodiment of a roller ski,
• 19 a sectional view of a roller assembly of the embodiment according to the 12 until 16 ,
• 20 and 22 perspective views of alternative rolling arrangements,
• 23 and 24 two sectional views of an alternatively designed pair of roller assemblies,
• 25 and 26 two views of another embodiment in the form of a skateboard,
• 27 a perspective view of another embodiment in the form of a roller ski,
• 28 and 29 Figure 12 shows a plan view of a pair of roller assemblies of the roller ski 27 in two different positions and
• 30 and 31 further views of the pair of roller assemblies of the roller ski 27 .

In 1 a person is shown as an example who is equipped with two personal mobility devices according to the invention in the form of roller skis 2 . With the help of the roller ski 2, the person can roll down a sloping ground due to the downhill force. Similar to moving with downhill skis on a snow base, the person can perform any curves, drift transversely to the longitudinal extension of the roller skis 2 and thereby control the speed. The design of the roller ski 2 even allows the person to make parallel turns or to slow down in the so-called plow position. It is preferably the substrate around a level solid surface, e.g. B. in the form of a paved path.

The roller ski 2 off 1 is alone in the 2 until 5 shown, where the 2 shows the roller ski 2 in a perspective view from the front 3 a view from below and 4 a side view. 5 Finally, a front view of the roller ski 2 can be seen.

The roller ski 2 has a platform 3, on the upper side of which there is a standing surface 4 and on the underside of which two roller assemblies 5 in the form of pairs of roller assemblies 8 are provided. The standing surface 4 is provided with an attachment 6 for the driver's foot, shoe, boot or the like, in particular in the manner of a ski safety binding 6 . The safety ski binding 6 is only shown very schematically in the figures, but corresponds to a commercially available safety ski binding.

The roller ski 2 extends along a longitudinal center axis 7 and has a front and a rear pair of roller assemblies 8 which are offset from one another along the longitudinal center axis 7 so that the standing surface 4 is arranged between the two pairs of roller assemblies 8 . The pairs of roller assemblies 8 are constructed in the same way. They each include two rolling devices 15 ( 3 ), which are arranged at the same height and opposite one another with respect to the longitudinal center axis 7 .

By means of the pairs of roller assemblies 8, the roller ski 2 can perform superimposed rolling movements along the longitudinal center axis 7 and along a front and rear transverse axis 9, 10 ( 2 ) carry out. The roller ski 2 can consequently roll freely in all directions on the driving surface and rotate about a ski axis of rotation 11 running transversely to the platform. The driving experience, which is similar to that of downhill skiing on snow, is created in particular by the fact that brake devices that can be actuated by shifting weight and/or changes in inclination of the standing area 4 to the rolling arrangements 5 are provided to control the driving movement, by means of which the transverse rolling movements can be braked to a greater or lesser extent.

Based on 6 until 11 , which show a pair of roller assemblies 8 in different views and states, their structure and mode of operation will be explained in detail below.

6 shows the pair of roller assemblies 8 in a perspective view from the front. The pair of roller assemblies 8 comprises a carrier plate 12, two control profiles 13, four braking devices 14 and two roller devices 15, each with a longitudinal and transverse roller device, which are integrated into one another in a compact manner. They are designed as a so-called all-side rolling arrangement.

The individual rolling device 15 is mounted so as to be rotatable overall about an overall axis of rotation 16 running parallel to the longitudinal center axis 7 . In addition, the 6 visible shell or rolling segments 17, 18 (in the example shown, two outer shell segments 17 and two inner rolling segments 18) rotatably mounted to the overall axis of rotation 16 perpendicular axes of rotation 19, 20. The longitudinal and transverse rolling device 15 enables overlapping and unlimited rolling movements along the longitudinal center 7 and transverse axes 9, 10 ( 2 ) and thus free rolling movements of the roller ski 2 on a surface.

The carrier plate 12 is used to attach the pair of roller assemblies 8 to the underside of the platform 3 of the roller ski 2. The control profiles 13 are fixed to the carrier plate 12 and the roller devices 15 and the braking devices 14 are pivotably attached about a pivot axis 21 which coincides with the longitudinal center axis 7.

7 a section through the pair of roller assemblies 8 perpendicular to the longitudinal center axis 7 at the level of the front control profile 13 is shown. 8th is a central cut through the in 6 braking devices 14 arranged on the right-hand side and the rolling device 15 arranged between them are shown in a sectional plane which runs parallel to the longitudinal central axis 7 and perpendicular to the transverse axis 9 .

The braking devices 14 are designed as hydraulic disc brakes. According to the sectional view 7 control cylinder 22, control piston 23 and hydraulic supply lines 24 can be seen, which are filled with a hydraulic fluid. The control pistons are loaded with return springs 25.

In the case of a variant that is not shown, the spring force constant or characteristic curve of the restoring springs 25 can be adjusted from the outside by means of an adjustment device.

The hydraulic lines 24 open into brake cylinders 27 provided with brake pistons 26, which are in the 8th are shown. Besides, the 8th to remove the Querachsdrehwelle 28 of the rolling device 15, on which the four rolling surface sections 17, 18 are rotatably mounted. The ends of the rotary shaft 28 are each provided with a non-rotatable brake disk 29 . Brake pads 30 are arranged opposite the brake discs 19 on the face side. At the in 8th State shown, the brake pads 30 are slightly different from the brake disc 29 spaced. However, the brake pads 30 can be pressed onto the brake discs 29 by means of the brake pistons 26 ( 11 ).

From the 6 until 8th it can be seen that both rolling devices 15 of the rolling arrangement pair 8 each have a front and a rear braking device 14 . This results in functionally reliable and effectively braking rolling devices 15.

In the 6 until 8th the roller assembly pair 8 is shown in its basic position, which it occupies when the platform 3 provided with the standing surface 4 is not inclined relative to the roller assembly pair 8 . In this basic position, the braking force effect of the braking devices 14 is zero.

On the other hand, the rolling assembly pair 8 in the 9 until 11 shown in an inclined position. Incidentally, according to the views of 9 until 11 the respective from the 6 until 8th .

Out of 10 it can be seen that the carrier plate 12 and the control profiles 13 are inclined clockwise about the pivot axis 21 by an angle α with respect to the rolling devices 15 . In this position, the control profile 13 has displaced the right control piston 23 against the spring force of the return spring 25 downwards. As a result, hydraulic fluid has been conveyed via the hydraulic supply line 24 into the associated brake cylinder 27, as a result of which the brake piston 26 presses the brake pad 30 onto the brake disc 29 ( 11 ). This applies analogously to the in 9 rear right braking device 14 too. The hydraulic system is designed in such a way that a hydraulic brake booster advantageously results.

Also off 10 it can be seen that the in 10 left return spring 25 does not apply force to the control profile 13 in the position shown. Overall, it is advantageous that the return springs 25 in the 10 shown embodiment the control profile 13 only apply force when they are compressed from the ground state. In the basic state, the control profile 13 is consequently not subjected to a force by any of the restoring springs 25 .

A transverse braking force can be generated by means of the braking devices 14, which increases the rolling resistance of the rolling devices 15 in the transverse direction and thereby has a braking effect on rolling movements along the transverse axis 9, 10. The transverse braking force can consequently be changed due to a weight shift that can be initiated by the person driving via the standing area 4 on the platform 3 and that is accompanied by a change in the inclination of the platform 3 relative to the roller assembly 5 or the pair of roller assemblies 8 .

With reference to the longitudinal center axis 7 increasingly unbalanced weight introduction along the transverse axis 9, 10 in the region of the pair of roller assemblies 8, the inclination and thus the transverse braking force increases up to a maximum transverse braking force.

The more the platform 3 is inclined relative to the pair of roller assemblies 8, the more the brake lining 30 is pressed onto the brake disk 29 and the greater the rolling resistance of the roller assembly 15 in the transverse direction and thus the braking force effect.

The braking devices 14 have no effect on the rolling resistance of the rolling device 15 in the longitudinal direction. It remains unchanged in any position of the platform 3 relative to the pair of roller assemblies 8 .

When the introduction of weight along the transverse axis 9, 10 is balanced with respect to the longitudinal center axis 7 in the region of the pair of roller assemblies 8, the pair of roller assemblies 8 again assumes the basic position ( 6 until 8th ) at which the braking force is zero.

In the 12 a second embodiment of a roller ski 2 is shown. In 13 until 15 is the roller assembly pair 8 of the embodiment 12 shown in different views. In 13 the pair of roller assemblies 8 is shown in perspective. In 14 is a sectional view through the control cylinder 22 of the roller assembly pair 8, in 15 by the central brake cylinder 27 of the roller assembly pair 8 and in the 16 a sectional view along the cross-axis rotary shaft 28 of FIG 14 front roller device 15 of the roller assembly pair 8 is shown. For components with an identical or similar function, the same reference numerals have been used as for the first exemplary embodiment according to FIGS 1 until 11 used.

The second exemplary embodiment differs from the first exemplary embodiment in that the transverse axis rotating shaft 28 is only provided with a braking device 14 at one end and is only supported in the rolling arrangement 8 at this end, which is particularly good 16 is evident. Furthermore, the braking device 14 is designed similar to known hydraulic bicycle disc brakes with a brake disc 29 that is acted upon on both sides.

The pair of roller assemblies 8 includes two control profiles 13, a common control cylinder 22 ( 14 ) and a common brake cylinder 27 ( 15 ) for the separate brake discs 29 of the two rolling devices 15. In this respect, the embodiment is characterized according to 13 until 16 characterized in that each pair of roller assemblies 8 comprises only one control cylinder 22, one brake cylinder 27 and two brake discs 29. It is structurally more compact and cheaper to produce than the embodiment according to the 1 until 11 , in which each pair of roller assemblies 8 comprises four control cylinders 22, four brake cylinders 27 and four brake discs 29.

In contrast to the embodiment according to the 1 until 11 , the restoring spring 25 is prestressed in the basic state of the roller ski 2, ie the control profiles 13 are also subjected to a force by the restoring spring 25 in the basic state.

In a modified embodiment, the control profiles 13 can additionally or alternatively be individually supported at their outer angle by return springs (not shown).

In the 17 and 18 a third exemplary embodiment is shown by way of example, which differs from the two previous exemplary embodiments mainly in that the transverse axis rotary shafts 28 are mounted about total rotary axes 16 which run at an angle and not parallel to the platform 3 level. The inclined position increases the off-road mobility due to greater ground clearance.

The detailed design of the rolling arrangement pairs 8, in particular the braking devices 14 contained therein, is shown in FIGS 17 and 18 not shown for reasons of clarity. The detail design can, for example, largely the design of the second embodiment according to the 12 until 16 are equivalent to.

In 19 is a central sectional view of the rolling devices 15 of the roller ski 2 according to the 12 until 16 shown.

The rolling device 15 is a rolling device 15 mounted on one side with integrated transverse and longitudinal rolling devices. The rolling device 15 comprises four inner rolling segments 18 and two outer shell segments 17, all of which rotate about the overall axis of rotation 16 (perpendicular to the plane of the drawing in 19 ) are rotatably mounted. The outer shell segments 17 are mounted so as to be rotatable about the axis of rotation 19 independently of one another. The four inner rolling segments 18 are mounted so as to be rotatable about the axes of rotation 20 independently of one another

It should be particularly emphasized that the gap 34 within the rolling surface between the outer shell segments 17 and the respective inner rolling segments 18 in the plane of the drawing 19 particularly small (for a better understanding of the position of the gap 34 on the rolling surface, see also 13 ). Thanks to this measure, there is a uniform rolling behavior of the rolling direction 15, in particular during the transition from rolling contact of an inner rolling segment 18 to rolling contact of an outer shell segment 17 on the ground. In addition, the possibility of driving over smaller obstacles such as stones increases.

Furthermore, the compact design and the resulting effective mutual support of the shell and roller segments 17, 18, particularly in the circumferential direction, should be emphasized. Thus, the segments 17, 18 can be performed with relatively thin walls and no additional storage is required. The result is a particularly low-wear rolling device 15.

The exemplary embodiments according to FIGS 1 until 11 , 17 , 18 and 25 until 31 on, which is the rolling devices 15 of the embodiments according to 1 until 11 and 25 and 26 in contrast to the other exemplary embodiments, it is a matter of rolling devices 15 mounted on both sides.

The structure of the integrated rolling devices 15 according to the exemplary embodiments shown is also considered independently of the further design of the rolling arrangements 5 or the pairs of rolling arrangements 8, in particular with and without braking devices.

In the 20 until 22 three further variants of rolling devices 15 are shown as examples.

At the in 20 shown rolling device 15 is, as in the rolling device 15 from the 1 until 11 a rolling device 15 mounted on both sides with integrated transverse and longitudinal rolling devices. The rolling device 15 is mounted so as to be rotatable overall about the overall axis of rotation 16 . In addition, an inner rolling segment 18 and two outer shell segments 17 are rotatably mounted about rotational axes 19 , 20 running perpendicularly to the overall rotational axis 16 .

On the other hand, in 21 an example of a rolling device 15 mounted on both sides is shown, in which two pairs of outer shell segments 17 are arranged offset from one another. The shell segment pairs 17 are rotatable about two different axes of rotation 19 on the transverse axis rotary shaft 28 mounted, which in turn is mounted rotatably about the overall axis of rotation 16, which runs perpendicular to the two axes of rotation 19.

Finally is in 22 a roller assembly 5 is shown with four individual rollers 31 which are differently aligned and rotatably mounted on a rotatably mounted transverse axis rotary shaft 28 .

All of the rolling arrangements 5 shown are designed so that the longitudinal and transverse rolling devices 15 allow overlapping, unlimited and therefore free rolling movements on a surface.

In the exemplary embodiments shown 1 until 18 the braking devices 14 generate the transverse braking force mechanically by frictional engagement with a brake disc 29. Alternatively, in a variant that is not shown, the braking force can also be effected electromagnetically. The braking devices 14 can also act directly on the rolling surfaces of the rolling devices 15 .

The rolling devices 15 of a pair of rolling arrangements 8 are preferably mounted on the platform 3 about a common pivot axis 21 . The 23 and 24 show an exemplary embodiment of a pair of roller assemblies 8, in which the roller devices 15 are each mounted individually about different pivot axes 21 on the support plate 12, via which the pair of roller assemblies 8 can be attached to the platform 3.

23 shows a sectional view in a plane that runs perpendicular to the pivot axes 21 and through the return springs 25, by means of which the individual rolling devices 15 are held spring-loaded relative to the carrier plate 12 in the non-braking basic position.

24 shows the pair of roller assemblies 8 in a sectional plane parallel to the sectional plane of FIG 23 , and through the transverse axis rotary shafts 28 at the level of chocks 32 of the braking devices 14. In the 24 left scroller 15, e.g. B. by shifting the weight of the person driving, from the basic position into a braking position, in which the chock 32 has a braking effect on the rotary shaft 28 of the transverse axis.

The 25 and 26 Finally, an exemplary embodiment of a personal transportation device in the form of a skateboard 33 can be seen, which is driven for rolling locomotion due to a downhill slope force on a sloping surface. The board has a platform 3 with standing areas 4 for attachment by means of ski bindings from both feet of a person driving. On the underside, the platform 3 is provided with two pairs of roller assemblies 8, the construction of which is not shown in detail. However, they correspond to the function and structure of the roller assembly pairs 8 of the embodiment of a roller ski 2 according to 1 until 11 . Alternatively, they can also correspond to the roller arrangement pairs 8 of the other exemplary embodiments of a roller ski 2 described.

The driving behavior of the skateboard 22 is similar to the driving behavior of a snowboard on a snow base due to the roller arrangement pairs 8 designed according to the invention.

In the 27 until 31 another embodiment of a roller ski 2 is shown. The roller ski 2 is characterized in that the front and rear pair of roller assemblies 8 are each attached to the platform 3 such that they can pivot about a steering pivot axis 35 . The steering pivot axes 35 run perpendicular to the longitudinal center axis 7 and to the transverse axes 8, 9 of the respective roller assembly pair 8. In the unloaded basic state of the roller ski 2, the steering pivot axes 35 preferably also run perpendicular to the standing surface 4.

The pairs of roller assemblies 8 are attached to the platform 3 such that they can be pivoted about the associated steering pivot axis 35 such that the rotational position of the roller devices 15 about the steering pivot axis 35 can be adjusted as a function of the inclination of the platform 3 relative to the pairs of roller assemblies 8 .

In the 28 and 29 By way of example, a plan view of the front roller assembly pair 8 is shown without the platform 3 but with the support plate 12, wherein 28 the roller assembly pair 8 in the unloaded basic state, 29 with the platform 3 in an inclined state. It can be seen that the rolling devices 15 together with a bearing block 36 change their rotational position in relation to the steering pivot axis 35 depending on the inclination of the carrier plate 12 and thus of the platform 3 .

The bearing block 36 is used to support the rolling devices 15 about the overall axes of rotation 16 of the rolling devices 15. The bearing block 36 also includes the brake cylinder 27 and brake piston 26 of the hydraulic braking device 14 of the rolling arrangement pair 8. It is connected via the pivot bearing 37 ( 30 ) mounted on the support plate 12 about the steering pivot axis 35. A driver 38 attached to the carrier plate 12 causes the changes in the rotational position of the bearing block 36 depending on the inclination of the carrier plate 12.

Control cylinder 22 and piston 23 together with control profiles 13 of the braking device 14 are rotating firmly attached to the steering pivot axis 35 on the support plate 12 or the platform 3. The control cylinder 22 is connected to the brake cylinder 27 by means of a flexible hydraulic line 24 ( 31 ) tied together.

The roller ski 2 according to 27 until 31 can be steered in addition to the control with the help of the variable transverse braking force to execute curves by the rotational position of the rolling devices 15 to the longitudinal center axis 7 can be changed or adjusted by changing the platform inclination in the manner of a conventional skateboard. This additional control option leads to a driving behavior of the roller ski 2 that is even more similar to snow skiing and in particular to what is known as carving on snow.

Further variations and modifications of the personal transportation device according to the invention are conceivable.

A variant can be mentioned as an example, in which the lateral braking force is controlled electronically and by means of sensors (eg in the form of gyro sensors) which measure the inclination of the platform relative to the roller arrangement or the roller arrangement pair.

The personal mobility device according to the invention can also be equipped with an electric motor drive device, by means of which the mobility device can be driven in addition to, instead of and/or counter to a slope driving force.

Furthermore, in addition to the braking device, which generates a controllable transverse braking force, a braking force device can be provided, by means of which the person driving can brake the rolling movement along the longitudinal center axis.

Regardless of the use of the roller assembly in a people mover, a roller assembly is generally considered to be inventive that includes a first roller assembly that enables rolling movement along a first axis of movement and a second roller assembly that is superimposed on the rolling movement enabled by the first roller assembly along the first movement axis, a rolling movement along a second movement axis, which runs at an angle, preferably perpendicular, transverse to the first movement axis. The rolling arrangement also has a braking device, by means of which a braking force can be generated which increases the rolling resistance of the second rolling device and thereby has a braking effect on rolling movements along the second axis of movement, the braking device comprising a control element which is used to adjust the braking force on the second rolling device acts, is pivotable about the first axis of movement of the first rolling device or an axis parallel thereto.

Advantageous design variants of the rolling arrangement result from the above statements on the rolling arrangements of the personal mobility device according to the invention.

Reference List

1st 2nd

roller ski

3

platform

4

floor space

5

rolling arrangement

6

ski binding

7

longitudinal central axis

8th

roll assembly pair

9

front transverse axis

10

rear transverse axis

11

ski axis of rotation

12

backing plate

13

control profile

14

braking device

15

Transverse and longitudinal rolling device

16

Overall axis of rotation of the rolling device

17

outer shell segment

18

inner roll segment

19

Axis of rotation of the outer shell segment

20

Axis of rotation of the inner rolling segments

21

Pivot axis of the roller assembly pair

22

control cylinder

23

control piston

24

hydraulic line

25

return spring

26

brake piston

27

brake cylinder

28

cross axis rotating shaft

29

brake disc

30

brake pad

31

single roles

32

chock

33

skateboard

34

Gap between inner rolling segments and outer shell segment

35

Steering pivot axis

36

Bearing block of roller directions

37

Pivot bearing for bearing block

38

Carrier for bearing block

QUOTES INCLUDED IN DESCRIPTION

This list of documents cited by the applicant was generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Patent Literature Cited

• US20120126523A1 [0003]

Claims (21)

Personal transportation device (2, 33), in particular roller skis (2), skateboard (33) or the like, for rolling locomotion on a surface, in particular driven due to a downhill force on a sloping surface, the transportation device (2, 33) having at least one standing surface (4th ) for at least one foot of a driving person and at least one rolling arrangement (5) for rolling movement of the locomotion device (2, 33) on the ground, wherein the locomotion device (2, 33) extends along a longitudinal central axis (7), and wherein the Rolling arrangement (5) comprises a longitudinal rolling device (15) which enables a rolling movement of the locomotion device (2, 33) along the longitudinal center axis (7), and a transverse rolling device (15) which enables a rolling movement of the locomotion device (2, 33) along a transverse axis ( 9, 10) which runs at an angle to the longitudinal center axis (7), preferably perpendicularly to the longitudinal center axis (7), characterized in that the longitudinal and transverse rolling device (15) make rolling movements superimposed on one another along the longitudinal center (7) and transverse axis ( 9, 10) enable the at least one rolling arrangement (5) to have at least one braking device (14), by means of which a transverse braking force can be generated, which increases the rolling resistance of the transverse rolling device (15) and thereby brakes rolling movements along the transverse axis (9, 10 ) acts, and that the transverse braking force can be changed by the person driving via the standing area (4). Personal transportation device (2, 33) according to one of the preceding claims, characterized in that the standing surface (4) is mounted relative to the rolling arrangement (5) or the rolling arrangements (5) in such a way that the person driving the inclination of the standing surface (4) opposite of the rolling arrangement (5) or the rolling arrangements (5) about a pivot axis (21) which runs parallel to the longitudinal central axis (7) or coincides with it, and the transverse braking force can thereby be changed. Personal transportation device (2, 33) according to one of the preceding claims, characterized in that the braking device (14) is designed in such a way that the transverse braking force when the standing surface (4) is in a basic position relative to the roller arrangement (8) or the roller arrangements (8) on is lowest, in particular zero. Personal transportation device (2, 33) according to one of the preceding claims, characterized in that the braking device (14) is designed in such a way that the lateral braking force increases with increasing inclination of the standing surface (4) relative to the roller arrangement (5) or the roller arrangements (5). . Personal transportation device (2, 33) according to one of the preceding claims, characterized in that the braking device (14) is designed in such a way that the lateral braking force due to an inclination introduced by the person driving into the transportation device (2, 32) towards the standing surface (4). of the rolling arrangement (5) or the rolling arrangements (5) can be changed independently of the rolling resistance of the longitudinal rolling device (15), in particular between its lowest and its maximum value. Personal transportation device (2, 33) according to one of the preceding claims, characterized in that the standing surface (4) is provided with at least one fastening (6) for the foot, shoe, boot or similar of the person driving, in particular in the manner of a safety ski binding (6 ), is provided. Personal transportation device (2, 33) according to one of the preceding claims, characterized in that the transportation device (2, 33) has a platform (3), on the top of which the standing surface (4) and on the underside of which the roller arrangement (5) or the Rolling assemblies (5) are provided. Personal mobility device (2, 33) according to one of the preceding claims, characterized in that the longitudinal and/or the transverse rolling device (15) enable an unlimited rolling movement along the longitudinal center (7) or transverse axis (9, 10) and/or that the rolling arrangement (5) is designed as an all-side rolling arrangement. Passenger mobility device (2, 33) according to one of the preceding claims, characterized in that the longitudinal and transverse rolling device (15) of the rolling arrangement (5) have separate rolling surfaces (17, 18) integrated into one another and arranged next to one another or radially to one another. Personal transportation device (2, 33) according to one of the preceding claims, characterized in that the roller arrangement (5) is designed as a pair of roller arrangements (8), which offset two along the longitudinal central axis (7) at the same height and along the transverse axis (9, 10). longitudinal and transverse rolling devices (5) arranged relative to one another and at least one braking device (14). Personal transportation device (2, 33) according to one of the preceding claims, characterized in that the roller arrangement (5), preferably a roller arrangement pair (8), about a pivot axis (21) is pivotally attached to a platform (3) provided with the standing surface (4), the pivot axis (21) preferably running parallel to the longitudinal center axis (7) or coinciding with the longitudinal center axis (7). Passenger mobility device (2, 33) according to one of the preceding claims, characterized in that the longitudinal rolling device (15) of a rolling arrangement (5), preferably the longitudinal rolling devices (15) of a rolling arrangement pair (8) together, can be pivoted about a steering pivot axis (35). is or are attached to a platform (3) provided with the standing surface (4), the steering pivot axis (35) running perpendicularly to the longitudinal center (7) and transverse axis (9, 10). Passenger mobility device (2, 33) according to one of the preceding claims, characterized in that the longitudinal rolling device (15) of a rolling arrangement (5), preferably the rolling devices (15) of a rolling arrangement pair (8) together, can be pivoted about a steering pivot axis (35) in such a way is or are attached to a platform (3) provided with the standing surface (4), that the rotational position of the longitudinal rolling device(s) (15) about the steering pivot axis (35) depending on the inclination of the platform (3) to the rolling arrangement ( 5) or to the pair of roller assemblies (8) in relation to the longitudinal central axis (7) can be changed, in particular adjusted. Personal transportation device (2, 33) according to one of the preceding claims, characterized in that the braking device (14) has a mechanical and/or hydraulic and/or electromagnetic spring device (25) which the roller arrangement (5), in particular a pair of roller arrangements (8) , against a platform (3) provided with the standing surface (4), in particular about the pivot axis (21), the spring force constant or characteristic of the spring device (25) preferably being adjustable. Personal transportation device (2, 33) according to one of the preceding claims, characterized in that the transportation device (2, 33) has at least two roller arrangements (5), preferably two roller arrangement pairs (8), which are arranged offset to one another along the longitudinal central axis (7). , wherein the standing surface (4) is preferably arranged between the two roller assemblies (5), in particular the two pairs of roller assemblies (8). Passenger mobility device (2, 33) according to one of the preceding claims, characterized in that the braking device (14) generates the lateral braking force mechanically, in particular by means of a frictional connection, or electromagnetically. Personal transportation device (2, 33) according to one of the preceding claims, characterized in that the braking device (14) comprises a brake booster which preferably has a wedge and/or curve element and/or a hydraulic brake booster. Personal mobility device (2, 33) according to one of the preceding claims, characterized in that the braking device (14) acts directly on rolling surfaces (17, 18) of the transverse rolling device (15) and/or on a braking surface (29) which rotates at least about one axis of rotation (9, 10) are non-rotatably connected to rolling surfaces (17, 18) of the rolling assembly (5). Personal transportation device (2, 33) according to one of the preceding claims, characterized in that the braking device (14) is designed as a hydraulic disc brake. Personal transportation device (2, 33) according to one of the preceding claims, characterized in that the braking device (14) serves as a braking device (14) for two rolling devices (15) of a rolling arrangement pair (8). Rolling arrangement (5), in particular for a personal transportation device (2, 33) according to one of the preceding claims, wherein the rolling arrangement (5) has a first rolling device (15) which enables a rolling movement along a first movement axis (7), and a second rolling device ( 15) which, superimposed on the rolling movement enabled by the first rolling device (15) along the first axis of movement (7), includes a rolling movement along a second axis of movement (9, 10), which runs at an angle, preferably perpendicular, to the first axis of movement (7). , enables the rolling arrangement (5) to have a braking device (14) by means of which a braking force can be generated which increases the rolling resistance of the second rolling device (15) and thereby has a braking effect on rolling movements along the second axis of movement (9, 10), wherein the braking device (14) comprises a control element (13) which, in order to adjust the braking force acting on the second rolling device (15), can be pivoted about a pivot axis (21) which runs parallel to or coincides with the first movement axis (7). .

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