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US 2003/0116930 A1Published application
Tilt-steered rolling device
OwnerWolfram Gorischinventor
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OwnerWolfram Gorischinventor
Estimating the term…
Rolling devices such as roller skates, skateboards, rolling skis, and scooters are known which steer by tilt, but either the wheels do not tilt, or the mechanism is of complex design, or the wheels shift sideways upon tilt. A rolling device shall have tilt-steering wheels which tilt with the device, and which stay in the middle of the platform when steering, and which are cheaply manufactured. This invention comprises a wheel pair, consisting of two wheels 3a, 3b affixed to wheel-holders 4a, 4b, which are interconnected by two cross-guides 5, 6 thus forming a parallelogrammic link chain. The two cross-guides 5, 6 swivel having their swivel axes 9a, 9b oriented parallel to each other providing an angle between the set of swivel axes 9a, 9b and the set of pivot axes 7a, 7b, 7c, 7d of the four links which constitute the chain. The cross-guides are fixed at the device platform using three universal joints. One such tilt-steering wheel pair mechanism together with at least one fixed wheel are attached at opposite ends of the rolling device to make it work.
A tilt-steered rolling device, consisting of an optional application part, a platform including extensions, and at least three wheels, two of said wheels being arranged side by side as a wheel pair, the wheels of the at least one wheel pair each being rotatably affixed at a separate wheel holder, the two wheel holders being interconnected via two cross-guides using at least four pivot links forming a trapezium-like or a parallelogram-like link chain, said tilt-steered rolling device comprising the said two cross-guides each being linked in a swivelling manner with the extensions of the platform in such a way that the first cross-guide swivels having a defined first swivel axis and the second cross-guide swivels having a defined second swivel axis, where the said first swivel axis and the said second swivel axis are oriented in parallel, and wherein the direction of the set of said first and second swivel axes make an angle α (alpha) to the common and parallel direction of the pivot axes of the at least four links of the said trapezium- or parallelogram-like link chain.
Dependencies are inferred from the claim text.