Gripping tires for a wheelchair

摘要

The gripping tire for a wheelchair as per the invention has a profile cross-section that is asymmetric and divided up in the radial and axial directions. Axial and radial refer here to the wheel of the wheelchair onto which the gripping tire is coaxially attached. A divided profile cross-section means that one of the sides of the axial division and the (inner) side of the radial division turned towards the axis of the gripping tire are designed to be bulbous, and the other side of the axial division and the (outer) side of the radial division turned away from the axis of the gripping tire are flattened. Furthermore, there is a process as per the invention for determining the value of at least one parameter of the cross-sectional profile of the gripping tire.

主权项

1. Gripping tire for a wheelchair with an asymmetrical profile cross-section divided up in the radial and axial directions, wherein one of the sides of the axial division and the side of the radial division turned towards the axis of the gripping tire are designed to be bulbous, and the other side of the axial division and the side of the radial division turned away from the axis of the gripping tire are flattened, wherein bulbous and flattened areas smoothly merge into one another, and wherein
the side of the radial division turned towards the axis of the gripping tire is an elliptical segment (8) and the side of the radial division turned away from the axis of the gripping tire has a straight piece (9), wherein the straight piece (9) and the elliptical segment (8) are connected via a first connecting circle segment (10) with a radius h and a second connecting circle segment (11) with a radius i.