The omnidirectional wheel includes a first support portion which rotates around a rotation axis line, a second support portion which rotates together with the first plate-like member, a number of support shafts respectively supporting a number of rollers, and a number of support plates fixed to the first and the second support portions and which support one or more of the support shafts between the first and second support portions.

An omni-track system for mounting onto a wheel may include a plurality of track segments. Each of the plurality of track segments may include a male connector, a female connector, a roller mount, and at least one roller. The female connector may be arranged opposite the male connector. The roller mount may be fixedly secured to the track segment. The at least one roller may be rotatably secured to the roller mount. The plurality of track segments may be linked together to fully encompass an outer circumference of the wheel.

An omni-track system for mounting onto a wheel may include a plurality of track segments. Each of the plurality of track segments may include a male connector, a female connector, a roller mount, and at least one roller. The female connector may be arranged opposite the male connector. The roller mount may be fixedly secured to the track segment. The at least one roller may be rotatably secured to the roller mount. The plurality of track segments may be linked together to fully encompass an outer circumference of the wheel.

A patient transport apparatus transports a patient over a floor surface. The patient transport apparatus comprises a support structure and support wheels coupled to the support structure. An auxiliary wheel is coupled to the support frame to influence motion of the patient transport apparatus over a floor surface. The auxiliary wheel is movable to a deployed position with the auxiliary wheel engaging the floor surface and a stowed position with the auxiliary wheel spaced a distance from the floor surface. An actuator assembly including a lift actuator a biasing device, and a biasing load adjustment assembly. The lift actuator is operable to move the auxiliary wheel to the deployed position and to the stowed position. The biasing device configured to bias the auxiliary wheel towards the deployed position. The biasing load adjustment assembly configured to adjust a biasing force being applied by the biasing device to the auxiliary wheel.

An enclosure including an upper frame, a lower frame, and a lift mechanism operably coupling the upper frame and the lower frame together. The lift mechanism includes first drive shafts and a second drive shaft operably coupling the first drive shafts for operation in unison, and an input operably coupled to at least one of the first drive shafts or the second drive shaft. The lift mechanism transitions the enclosure between a stowed state and a deployed state during a movement of the actuator.

A wall configured to couple to a shelter and extend around at least a portion of a perimeter of the shelter. The wall includes a first end having a first attachment mechanism configured to engage with a second attachment mechanism of the shelter, a second end opposite the first end, a sidewall extending between the first end and the second end, and a third attachment mechanism coupled proximal to the second end and configured to engage with a fourth attachment mechanism disposed on the shelter to couple the wall to the shelter.

A traction sleeve roller featuring an inner roller and a secured outer traction sleeve that may be rotatably powered when operable to a motor. The outer traction sleeve may be radially offset from the inner roller by a plurality of supporting members positioned between the outer traction sleeve and the inner roller. The plurality of supporting members may secure a plurality of traction members about the inner roller. The plurality of traction members may have a plurality of traction points. A plurality of outer passages pass between the plurality of traction members. A plurality of inner passages pass between an interior surface of the outer traction sleeve and a surface of the inner roller. A foulant may be directed through the plurality of outer passages into the plurality of inner passages when the traction sleeve roller is engaged with a surface having fouling conditions.

A traction sleeve roller featuring an inner roller and a secured outer traction sleeve that may be rotatably powered when operable to a motor. The outer traction sleeve may be radially offset from the inner roller by a plurality of supporting members positioned between the outer traction sleeve and the inner roller. The plurality of supporting members may secure a plurality of traction members about the inner roller. The plurality of traction members may have a plurality of traction points. A plurality of outer passages pass between the plurality of traction members. A plurality of inner passages pass between an interior surface of the outer traction sleeve and a surface of the inner roller. A foulant may be directed through the plurality of outer passages into the plurality of inner passages when the traction sleeve roller is engaged with a surface having fouling conditions.

An omnidirectional wheel includes a plurality of first and second rollers, a plurality of roller support parts, a wheel hub, and a fixing member. The wheel hub has a shaft portion and an extension. The fixing member and an elastic body are disposed to surround the shaft portion. Spaces are provided between the elastic body and the shaft portion, or between the elastic body and the roller support parts. A plurality of first pins and second pins are formed to protrude from the extension and the fixing member, respectively. The elastic body has a plurality of first holes and second holes. The first holes and the second holes are shifted from each other in a circumferential direction of the elastic body.

An omnidirectional wheel includes a plurality of first and second rollers, a plurality of roller support parts, a wheel hub, and a fixing member. The wheel hub has a shaft portion and an extension. The fixing member and an elastic body are disposed to surround the shaft portion. Spaces are provided between the elastic body and the shaft portion, or between the elastic body and the roller support parts. A plurality of first pins and second pins are formed to protrude from the extension and the fixing member, respectively. The elastic body has a plurality of first holes and second holes. The first holes and the second holes are shifted from each other in a circumferential direction of the elastic body.