DE20015506U1 - Wheel for wheeled vehicles - Google Patents

Description

German utility model application

Applicant: Andreas Kiener

Michael Eichin
Our reference: 11158 DE (KG/JÜ)

Wheel for wheeled vehicle

The present invention relates to a wheel for wheeled vehicles, e.g. inline skates, roller skates, kick scooters or bicycles. The invention further relates to a kick scooter equipped with the wheel, an inline skate, roller skate, skateboard equipped with the wheel and a bicycle equipped with the wheel.

Devices for generating light in various forms are already known for wheeled vehicles. For example, a dynamo attached to the wheel or impeller of the wheeled vehicle is used to generate electricity, which forms a frictional connection with a corresponding surface of the tire of the wheeled vehicle. The high friction loss of this device due to the friction of the drive head of the dynamo with the tread of the tire means that in practice more effort is required to move or propel the wheeled vehicle, for example a bicycle.

Furthermore, the conventional dynamo is only of limited universal use. In rain or snow, the drive head slips on the running surface, which interrupts the power generation. It cannot be used at all in new means of transport, rollerblades or scooters. Batteries or rechargeable batteries are used instead, which depend on the capacity, charge level and careful maintenance of these storage media. Such storage media have proven to be expensive in continuous operation. They also increase the weight of the device considerably.

The object of the present invention is therefore to provide a wheel for wheeled vehicles,

which has a simple, maintenance-free, compact and technically easy to implement light generation. Furthermore, the object of the present invention is to specify a rollerblade, inline skate, roller skate, skateboard, kick scooter or bicycle equipped with such a wheel.

The object is achieved according to one aspect of the present invention by a wheel according to claim 1. One or a plurality of coils are attached to the edge of the wheel. The coils interact with magnets or permanent magnets attached near the wheel. Due to the law of magnetic induction, a magnet guided past a coil induces a current surge in the coil, which causes a light effect on the light source connected to the coil. Such a light effect is sufficient to draw the attention of other road users to the wheeled vehicle in the dark. The wheel according to the invention thus significantly increases the road safety of modern wheeled vehicles.

Preferably, the tire is made of solid plastic and the coil and the light source are embedded or cast in the plastic. This means that the power and light generation is integrated without additional equipment while maintaining the compactness of the wheel and causes the wheels to be illuminated.

The plastic is preferably transparent so that the light source shines through the transparent plastic material without any significant loss of intensity.

The coil is preferably located in a radial edge area of the tire near or in the area of its tread. The coil can be easily accommodated there and coupled with a corresponding magnet.

In an alternative embodiment, the coil is located in an edge area of the tire facing away from the tread. In this embodiment, the coil is located in a lateral edge area of the tire, where the coil can be conveniently coupled to a corresponding magnet at the same height.

•··♦ ·*

In the coil design, the magnet is located in an edge area of the tire facing away from the tread in a fork or a corresponding one-armed bar that serves to hold the bearing axle. The magnet can be attached there in the immediate vicinity of the coil at its height and causes a current surge in the coil with each rotation of the wheel.

In the case of a coil design, the magnet is located in the area of the tread in a sheet of metal on the wheeled vehicle arranged above the tread of the tire or is attached to the frame accordingly.

The coil is preferably vulcanized into the outer surface of the tire so that the wheel is easy to manufacture.

Preferably, a plurality of coils are arranged along the tire periphery to increase the light output.

According to a second aspect of the invention, a wheel for wheeled vehicles is specified in which the arrangement of magnet and coil are interchanged. This arrangement is the subject of claim 11. The magnet is arranged in the tire and works together with

fe a coil arranged in the immediate vicinity of the tire on the wheeled vehicle and connected to a light source. This also creates a light effect.

In both aspects of the invention, it is preferred to arrange a capacitor between the coil and the light source in order to equalize the light output, take into account the inertia of the light source and increase the light output overall. With the same power requirement, it is possible to increase the light intensity by shortening the lighting interval (corresponding electronics).

In both cases, any imbalance of the impeller should be avoided by arranging the components accordingly or compensated for by counterweights.

In both aspects of the invention, a semiconductor is preferably provided between the coil and the light source, which prevents the backflow of current into the coil and effectively avoids the capacitor discharge.
5

Preferably, in both aspects of the invention, the light source is an LED (light emitting diode).

In the second aspect of the present invention, in a first embodiment, the magnet is preferably arranged in the region of the tread of the tire, wherein this embodiment corresponds to a coil which is arranged in a metal sheet or corresponding frame of the wheeled vehicle arranged above the tread of the tire.

In an alternative embodiment, the magnet is arranged in a radial edge region of the tire facing away from the tread, wherein this embodiment corresponds to the arrangement of the coil in a fork serving to hold the bearing axle or a corresponding spar of the wheeled vehicle at the height of the magnet.

Preferably, the magnet is vulcanized into a surface of the tire so that the wheel is easier to manufacture.

Preferably, a plurality of magnets are arranged along the tire periphery to increase the light output.

The subject matter of claim 22 is a scooter equipped with a wheel according to the invention, which is also referred to as a kick scooter or kick scooter.

The subject matter of claim 23 is a roller skate or a roller blade, inline skate, which is equipped with a wheel according to the invention.
30

The subject matter of claim 24 is an inline skate provided with a wheel according to the

5
invention is equipped.

The subject matter of claims 25 and 26 are a skateboard and a bicycle, respectively.

The wheel according to the invention and the wheeled vehicles equipped with it are characterized by very low power loss when generating electricity, low weight, easy assembly, low production costs and absolutely maintenance-free. The light generation is independent of the weather and can be used in particular with small wheels, especially kick scooters, roller blades and inline skates. The power and thus also the effort required by the bike to move can be adjusted by changing the distance between the magnet and the coil. This distance can be adjusted, for example, by means of a locking folding device to which the magnet (coil) is attached. By using modern light sources, e.g. LEDs with very low power requirements, the power generated is sufficient for road traffic lighting.

In the embodiment of a magnet arranged on the fork, a cat's eye with a coil and LED attached to the wheel (spokes) can also be provided, which is supplied with the necessary energy to illuminate the LED.

The arrangement of several light sources (LEDs) in the tire or wheel can be concentric

^ or spiral-shaped. The control of the lamps can also be regulated by the speed of the wheel. Different colored lamps can also be used. The lamps can also be controlled independently of the rotation of the wheel and an apparent counter-rotation can be set.

Further advantages, features and possible applications of the present invention will become apparent from the following description of preferred embodiments in conjunction with the drawing.
30

Fig. 1 shows a schematic cross-section of an embodiment according to a first aspect

the invention.

Fig. 2 shows schematically a further embodiment according to a first aspect of the invention.
5

Fig. 3 shows a first embodiment according to a second aspect of the invention.

Fig. 4 shows a further embodiment according to a second aspect of the invention.
Fig. 5 shows the embodiment of Fig. 1 schematically in a front view.
Fig. 6 shows the embodiment of Fig. 3, 4 schematically in front view.

Fig. 7 shows a further embodiment according to the second aspect of the invention.

In Fig. 1, a permanent magnet 6 is mounted in an edge area of a wheel 1 or in the spokes arranged between the rim and the hub. The permanent magnet has a rectangular or square shape and is attached, for example, to the spokes of a wheel 1 belonging to a bicycle. At the same height as the permanent magnet 6, a coil 8 is mounted on a fork 4 of the wheeled vehicle, which, when the

αr; of the wheel 1 is aligned with the permanent magnet 6 in a certain position. A current is induced in the coil, which causes a light effect in a light source (not shown) connected to the coil 8. Alternatively, the permanent magnet 6 can be attached to the rim or in a tire 2 of the wheel 1.

In the embodiment of the invention shown in Fig. 2, a plurality of permanent magnets 6' are vulcanized onto or in the wall of a tire 2' of the wheel Γ. A coil 8' is attached to the fork 4' of the wheeled vehicle at the level of the magnets 6', which is aligned with each individual permanent magnet 6' in a certain rotational position. The rotational movement of the wheel causes the magnets 6' to move past the coil 8' and induce a current in this coil.

The current leads to a luminous effect in a light source (not shown) connected to the coil 8'. This embodiment can also be used in a wheel (wheels) of an inline skate, micro scooter, skateboard, wherein the plurality of magnets are embedded in the wheel.
5

In a first embodiment according to a second aspect of the present invention, Fig. 3 shows a wheel 1" on whose tire 2" a plurality of coils 10 are arranged along the periphery and evenly spaced from one another, which are alternatively attached to a side wall of the tire 2", to a radial tread of the tire 2", to the rim or to the spokes of the wheel. On the fork

) 4" of the impeller 1" there is a permanent magnet 12 which is arranged at the level of the coils 10 and is aligned with the individual coils 10 in a certain rotational position of the impeller.

The rotating movement of the impeller moves the coils past the permanent magnets and a current is induced in the coils one after the other. The induced current illuminates a light source connected to the respective coils. A light source is connected to each coil. Alternatively, the coils are connected in series or parallel to supply power to a single or multiple light sources (LEDs).

In Fig. 4, a plurality of coils 10' are cast or vulcanized into the side area of a tire 2'". On the fork 4'" at the level of the coils 10', a permanent magnet 12' is located, which induces a current in the coils 10' at a specific rotational position. This current is used to illuminate a light source connected to the coils 10'.

Fig. 5 shows a front view of the embodiment of Fig. 1. The permanent magnet 6 can be clearly seen, which is located in the area of the tire 2. Furthermore, a coil 8 is attached to the frame, namely by means of a swivel joint 16 and a support rod 14 guided by the swivel joint. Depending on requirements, the coil 8 can be pivoted from a rest position into the operating position shown in Fig. 5. The tire 2 sits on a rim 18 of a wheel 20, which is attached with its pivot bearing axis 22 to a fork 4.

of the wheeled vehicle. In the embodiment shown, the permanent magnet 6 is vulcanized into the side surface of the tire 2 facing away from the tread of the tire 2.

Fig. 6 shows a front view of the embodiment of Fig. 3, Fig. 4 and Fig. 7. The coil 10 can be clearly seen, which is located in the area of the tire 2. Furthermore, a permanent magnet 12 is attached to the frame, namely by means of a swivel joint 16 and a support rod 14 guided by the swivel joint. Depending on requirements, the permanent magnet 12 can be pivoted from a rest position into the operating position shown in Fig. 6. The tire 2 sits on a rim 18 of a wheel 20, which with its

} Pivot bearing axle 22 is rotatably mounted on a fork 4" of the wheeled vehicle. In the embodiment shown, the coil 10 is vulcanized or incorporated into the side surface of the tire 2 facing away from the tread of the tire 2. In this embodiment, the tire 2 should be made of a transparent plastic.

In Fig. 7, a further embodiment according to a second aspect of the invention is shown, in which a wheel 24 of a scooter or rollerblade or roller skate is made of transparent solid plastic or solid rubber. The wheel or tire 24 runs on a bearing axle 26 and has coils 28 embedded in the plastic or rubber and evenly spaced from one another along the periphery.

fc each connected to an LED 30. A capacitor (not shown) and semiconductor (not shown) are provided between the light source and the coil to prevent the light sources (LEDs) from flashing and the capacitor from discharging via the coil. The electrical and electronic components are pre-assembled on the rim and are cast with the transparent tire.

Rod-shaped or U-shaped coils are used as coils.

The wheels according to the invention shown in Figs. 1 to 7 are used in wheeled vehicles of various types, in particular rider-driven wheeled vehicles, namely bicycles, inline skates, skateboards, scooters, kick scooters,

Rollerblades, roller skates, tricycles, strollers and wheelchairs. The invention implemented in the balance bikes creates lighting for the balance bikes, which is particularly important in the dark, to improve the visibility of the wheeled vehicle for other road users, which significantly increases road safety.

Claims (26)

1. A wheel for a wheeled vehicle, comprising a bearing axle and a tire made of plastic, wherein at least one coil connected to a light source is arranged in the tire, which is suitable for interacting with at least one magnet arranged in the immediate vicinity of the tire on the wheeled vehicle in order to achieve a light effect. 2. Wheel for wheeled vehicle according to claim 1, characterized in that the tire is made of solid plastic and the coil and the light source are embedded or cast in the plastic. 3. Wheel for wheeled vehicle according to claim 2, characterized in that the plastic is transparent. 4. A wheel for a wheeled vehicle according to one of the preceding claims, characterized in that the coil is located in a radial edge region of the tire near or in the region of its tread. 5. A wheel for a wheeled vehicle according to one of claims 1 to 3, characterized in that the coil is located in an edge region of the tire facing away from the tread. 6. A wheel for a wheeled vehicle according to claim 5, characterized in that the magnet is located in a fork serving to hold the bearing axle or a corresponding spar of the wheeled vehicle opposite the coil. 7. A wheel for a wheeled vehicle according to claim 4, characterized in that the magnet is located in a sheet of the wheeled vehicle arranged above the tread of the tire. 8. A wheel for a wheeled vehicle according to any one of the preceding claims, characterized in that the magnet is attached to a frame of the wheeled vehicle. 9. Wheel according to one of the preceding claims, characterized in that the coil is vulcanized into the outer surface of the tire. 10. A wheel according to any preceding claim, characterized in that a plurality of coils are arranged along the tire periphery. 11. A wheel for a wheeled vehicle, comprising a bearing axle and a tire made of plastic, wherein at least one magnet is arranged in the tire, which is suitable for interacting with at least one coil arranged in the immediate vicinity of the tire on the wheeled vehicle and connected to a light source in order to achieve a light effect. 12. Impeller according to one of the preceding claims, characterized in that a capacitor is provided between the coil and the light source. 13. Impeller according to one of the preceding claims, characterized in that a semiconductor is provided between the coil and the light source. 14. Impeller according to one of the preceding claims, characterized in that the lighting means is an LED. 15. Wheel according to claim 11, characterized in that the magnet is located in the region of the tread of the tire. 16. A wheel according to claim 11, characterized in that the magnet is arranged in the radial edge region of the tire facing away from the tread. 17. Wheel according to claim 16, characterized in that the coil is arranged in a fork serving to hold the bearing axle or a corresponding spar of the wheeled vehicle at the level of the magnet. 18. A wheel according to claim 15, characterized in that the coil is located in a sheet of the wheeled vehicle arranged above the tread of the tire. 19. Wheel according to one of the preceding claims, characterized in that the coil is attached to a frame of the wheeled vehicle. 20. Wheel according to one of the preceding claims, characterized in that the magnet is vulcanized into a lateral surface of the tire. 21. A wheel according to any preceding claim, characterized in that a plurality of magnets are arranged along the tire periphery. 22. A scooter equipped with one or more wheels according to one of the preceding claims. 23. Roller skate equipped with one or more wheels according to one of claims 1 to 21. 24. Inline skate equipped with one or more wheels according to one of claims 1 to 21. 25. A skateboard equipped with one or more wheels according to one of claims 1 to 21. 26. Bicycle equipped with a wheel according to one of claims 1 to 21.