The invention discloses a non-pneumatic tire, comprising a wheel hub; an annular belt located on the periphery of the wheel hub; spokes comprising a plurality of spokes circumferentially arranged between the annular belt and the wheel hub; each spoke being V-shaped, and the spoke comprising two inclined plates arranged at an angle and an arc-shaped apex corner area formed at the joint of the two inclined plates; a resistance part for limiting the deformation amount of the apex corner area to a deformation amount corresponding to the yield strength. According to the invention, plastic permanent deformation of spokes can be effectively avoided by adding resistance parts, and further the service life of non-pneumatic tires can be prolonged.

The invention discloses a non-pneumatic tire, comprising a wheel hub; an annular belt located on the periphery of the wheel hub; spokes comprising a plurality of spokes circumferentially arranged between the annular belt and the wheel hub; each spoke being V-shaped, and the spoke comprising two inclined plates arranged at an angle and an arc-shaped apex corner area formed at the joint of the two inclined plates; a resistance part for limiting the deformation amount of the apex corner area to a deformation amount corresponding to the yield strength. According to the invention, plastic permanent deformation of spokes can be effectively avoided by adding resistance parts, and further the service life of non-pneumatic tires can be prolonged.

A wheel assembly for a non-pneumatic tire includes a wheel including an inboard side, an outboard side, and an outer surface, the outer surface including at least one taper extending from the inboard side to the outboard side, and a locking ring configured to abut against at least one of the inboard side and the outboard side of the wheel and to secure the non-pneumatic tire to the wheel.

A wheel suspension system, comprising, a wheel rim, a plurality of adaptors equidistantly mounted on inner periphery of the wheel rim, a plurality of suspension curved elastic members having drafted ends configured to be circumferentially and linearly disposed into the adaptor along the wheel rim, and a multi-layered hub having a plurality of interlocked holders away from its centre towards the wheel rim for interlocking the elastic members at the centre. The wheel suspension system is cost effective for both users and manufacturers, user friendly, comfortable, easy to assemble or disassemble, comfortable and provides safety in cases of accidents.

A wheel suspension system, comprising, a wheel rim, a plurality of adaptors equidistantly mounted on inner periphery of the wheel rim, a plurality of suspension curved elastic members having drafted ends configured to be circumferentially and linearly disposed into the adaptor along the wheel rim, and a multi-layered hub having a plurality of interlocked holders away from its centre towards the wheel rim for interlocking the elastic members at the centre. The wheel suspension system is cost effective for both users and manufacturers, user friendly, comfortable, easy to assemble or disassemble, comfortable and provides safety in cases of accidents.

A wheel assembly for a non-pneumatic tire includes a wheel including an inboard side, an outboard side, and an outer surface, the outer surface including at least one taper extending from the inboard side to the outboard side, and a locking ring configured to abut against at least one of the inboard side and the outboard side of the wheel and to secure the non-pneumatic tire to the wheel.

A vacuum cleaner can include an upright section, a surface cleaning head coupled to the upright section, and at least one wheel coupled to the surface cleaning head. The at least one wheel can include a hub, a rim, and an absorber. The absorber can extend between the hub and the rim. The absorber can be configured to deform before the rim experiences substantial deformation. A deformation limiter can be provided that is configured to limit the deformation in the absorber.

A vacuum cleaner can include an upright section, a surface cleaning head coupled to the upright section, and at least one wheel coupled to the surface cleaning head. The at least one wheel can include a hub, a rim, and an absorber. The absorber can extend between the hub and the rim. The absorber can be configured to deform before the rim experiences substantial deformation. A deformation limiter can be provided that is configured to limit the deformation in the absorber.

A system for adjusting the compliance of a wheel is provided. In one embodiment, wheel segments are adjusted, causing the stiffness of the wheel to change. Such adjustments can be made while the wheel is rotating, allowing the wheel compliance to be changed while a vehicle is in motion.

A system for adjusting the compliance of a wheel is provided. In one embodiment, wheel segments are adjusted, causing the stiffness of the wheel to change. Such adjustments can be made while the wheel is rotating, allowing the wheel compliance to be changed while a vehicle is in motion.