Wheel with suspension system and centralizing unit with suspension system
AssigneeSoftwheel Ltd.
InventorsRonny Winshtein, Amichay Haim Gross, Dvir Brand, Ahishay Sardes
Life of this patent
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Abstract
A wheel with a suspension system being connectable to a vehicle, like a wheel chair, comprises a hub (38) and a rim (34) rotatable about the axle (42) of the hub (38). Between the hub (38) and the rim (34), a number of support members (40) is located. The support members (40) are adapted to retain the distance when stressed up to a threshold value and recoverly alter the distanced when stressed over this threshold value. According to the invention, the support members (40) are comprising spring elements (50), damping strokes by compression if the support member (40) is compressed or elongated. The spring elements (50) are preferably preloaded.
Claims18
A centralizing unit comprising a suspension system with at least one support member comprising:
- an outer longitudinal element enclosing a lumen, comprising a first outer slit and a second outer slit longitudinally spaced from said first outer slit along an outer slit longitudinal axis;
- an inner longitudinal element slidable in said lumen, comprising a first inner slit and a second inner slit longitudinally spaced from said first inner slit along an inner slit longitudinal axis, said inner and outer longitudinal elements are slidably movable relative to each other in a longitudinal direction within said lumen;
- a first sliding pin provided in said first outer slit and said first inner slit;
- a second sliding pin provided in said second outer slit and said second inner slit;
- and
- a suspension spring connected with a first end to said first sliding pin and with a second end to said second sliding pin;
- wherein said inner and outer longitudinal elements are configured whereby when subjected to compression or extension stresses less than a predetermined threshold value, said first and second sliding pins maintain a fixed distance relative to each other.
Dependencies are inferred from the claim text.