초록 ▼

A wheelchair tire has a carcass having a running profile applied to an interior side and optionally having a raised lettering. At least on an exterior tire wall, starting from a region later adjoining with wheel rim edges, to at least a first boundary plane extending through the center of the tire c

A wheelchair tire has a carcass having a running profile applied to an interior side and optionally having a raised lettering. At least on an exterior tire wall, starting from a region later adjoining with wheel rim edges, to at least a first boundary plane extending through the center of the tire cavity, the carcass has a smooth construction without profiles and lettering. An intersection point of the first boundary plane on the tire extends maximally offset by an angle of 45° with respect to an intersection point of a center plane with the tire.

대표청구항 ▼

The invention claimed is: 1. Wheelchair assembly comprising: a wheelchair seat for a wheelchair occupant, and a pair of wheels disposed at lateral sides of the seat and being manually rotatable by the wheel chair occupant, wherein each wheel includes a rim surrounded by a tire, each tire having a t

The invention claimed is: 1. Wheelchair assembly comprising: a wheelchair seat for a wheelchair occupant, and a pair of wheels disposed at lateral sides of the seat and being manually rotatable by the wheel chair occupant, wherein each wheel includes a rim surrounded by a tire, each tire having a tire carcass surrounded by a running profile, and wherein the running profile of each of the tires is asymmetrically disposed with respect to a tire carcass center plane with portions of at least one of the running profile and carcass disposed laterally outward of a wheel chair in an in use position being configured to be smooth so as to limit chafing of a wheel chair occupant's hands when manually rotating a wheel with said tire mounted thereon. 2. Wheelchair assembly according to claim 1, wherein said wheels are mounted with a predetermined camber of between 9° and 16°. 3. Wheelchair assembly according to claim 1, wherein the running profile of each tire is asymmetrically configured with respect to the associated tire carcass center plane. 4. Wheelchair assembly according to claim 2, wherein the running profile of each tire is asymmetrically configured with respect to the associate tire carcass center plane. 5. Wheelchair assembly according to claim 1, wherein each wheel includes a driving ring manually engageable by the wheelchair occupant to drive the wheel. 6. Wheelchair assembly comprising: a wheelchair seat for a wheelchair occupant, and a pair of wheels disposed at lateral sides of the seat and being manually rotatable by the wheel chair occupant, wherein each wheel includes a rim surrounded by a tire, each tire having a tire carcass surrounded by a running profile, wherein the running profile of each of the tires is asymmetrically disposed with respect to a tire carcass center plane with portions of at least one of the running profile and carcass disposed laterally outward of a wheel chair in an in use position being configured to be smooth so as to limit chafing of a wheel chair occupant's hands when manually rotating a wheel with said tire mounted thereon, and wherein the running profile of each tire is symmetrically configured and arranged laterally offset with respect to the tire center plane by a predetermined offset angle. 7. Wheelchair assembly according to claim 2, wherein the running profile of each tire is symmetrically configured and arranged laterally offset with respect to the tire center plane by a predetermined offset angle; said predetermined offset angle corresponding to a predetermined camber of the respective wheel. 8. Wheelchair assembly comprising: a wheelchair seat for a wheelchair occupant, and a pair of wheels disposed at lateral sides of the seat and being manually rotatable by the wheel chair occupant, wherein each wheel includes a rim surrounded by a tire, each tire having a tire carcass surrounded by a running profile, wherein the running profile of each of the tires is asymmetrically disposed with respect to a tire carcass center plane with portions of at least one of the running profile and carcass disposed laterally outward of a wheel chair in an in use position being configured to be smooth so as to limit chafing of a wheel chair occupant's hands when manually rotating a wheel with said tire mounted thereon, and wherein each tire is provided with a low friction coating on the portions configured to be smooth. 9. Wheelchair assembly comprising: a wheelchair seat for a wheelchair occupant, and a pair of wheels disposed at lateral sides of the seat and being manually rotatable by the wheel chair occupant, wherein each wheel includes a rim surrounded by a tire, each tire having a tire carcass surrounded by a running profile, and wherein the running profile of each of the tires is asymmetrically disposed with respect to a tire carcass center plane with portions of at least one of the running profile and carcass disposed laterally outward of a wheel chair in an in use position being configured to be smooth so as to limit chafing of a wheel chair occupant's hands when manually rotating a wheel with said tire mounted thereon, and a center of a ground contact area of the tire is substantially aligned with a center of the asymmetric running profile.