A mechanics creeper that is strapped to the user using a back pack type harness. The present technology pertains to equipment for a mechanic. Also, the type of wheels used allows it to roll through debris without obstruction. In particular, but not by way of limitation, the present technology provides systems for mechanics to easily do work underneath a vehicle or machine using a mechanics creeper. Furthermore, embodiments of the present technology allow for a mechanics creeper that is easy for a user to transport and store.

A wheel for a non-motorized vehicle (e.g., a shopping cart) can include a housing assembly and a tread assembly. The housing assembly can be configured to sealingly house electronics or other components. The tread assembly can removably mate with the housing assembly such that the electronics or other components remain closed and/or sealed within the housing assembly when the tread assembly is mated or unmated with the housing assembly.

A wheel for a non-motorized vehicle (e.g., a shopping cart) can include a housing assembly and a tread assembly. The housing assembly can be configured to sealingly house electronics or other components. The tread assembly can removably mate with the housing assembly such that the electronics or other components remain closed and/or sealed within the housing assembly when the tread assembly is mated or unmated with the housing assembly.

Segmented wheels offer advantages in storage space of closely packed segments as compared to whole wheels. Individually damaged or worn segments may be replaced in the field with little or no need for jacks or cranes to support the rest of the vehicle, and entire wheels may be replaced or reconfigured from one tread type to another by swapping out segments not in contact with the ground and then driving the vehicle a distance which is a fraction of the circumference of its wheels to expose the remaining segments for retrofit. Segments may be freely supported by rigid or compliant spokes or may be bound together by straps or designed to interlock with adjacent segments. Embodiments of the invention may be made in any size range including applications for bicycles, agricultural machinery, cars, trucks and mining machinery and vehicles.

A light emitting device for an automobile wheel is capable of generating electrical energy through torque of an automobile wheel, illuminating an advertisement member using the generated electrical energy, and controlling the advertisement member to display advertisement contents at a correct posture without being tilted in response to a reverse magnetic field generated during the electricity generation process.

A sanding system for a rail vehicle includes a housing of a cellular wheel sluice having an inlet located at the top and an outlet located at the bottom, a pivotably mounted cellular wheel having a plurality of cells, and a motor that is coupled with the cellular wheel. The sanding system further includes a container connected to the inlet of the cellular wheel sluice for receiving brake sand, or a feed line connected to the inlet of the cellular wheel sluice for transporting brake sand, and a discharge line connected to the outlet of the cellular wheel sluice for transporting brake sand. The motor for driving the cellular wheel is thereby arranged above the inlet.

A sanding system for a rail vehicle includes a housing of a cellular wheel sluice having an inlet located at the top and an outlet located at the bottom, a pivotably mounted cellular wheel having a plurality of cells, and a motor that is coupled with the cellular wheel. The sanding system further includes a container connected to the inlet of the cellular wheel sluice for receiving brake sand, or a feed line connected to the inlet of the cellular wheel sluice for transporting brake sand, and a discharge line connected to the outlet of the cellular wheel sluice for transporting brake sand. The motor for driving the cellular wheel is thereby arranged above the inlet.

The invention is embodied in a tire having retractable studs. A driver can activate the studs for driving in icy and/or snowy conditions without manual replacement of all-weather tires to snow or studded tires as well as the installation of snow chains.

The invention can be incorporated in an airless tire vehicle's traction control system and anti-lock brake system (ABS), which the traction control system can activate the retractable studs to add traction on one or more wheels. In addition, this invention provides a better thermal dissipation for airless tires.

The invention is embodied in a tire having retractable studs. A driver can activate the studs for driving in icy and/or snowy conditions without manual replacement of all-weather tires to snow or studded tires as well as the installation of snow chains.

The invention can be incorporated in an airless tire vehicle's traction control system and anti-lock brake system (ABS), which the traction control system can activate the retractable studs to add traction on one or more wheels. In addition, this invention provides a better thermal dissipation for airless tires.

A device comprising a plurality of hollow units (11), each unit comprising a circumferential wall (12) having a first end region (5) and a second end region (13), wherein the first end region is narrower than the second end region and the plurality of units are in an interconnected arrangement, such that the first end region of a first unit (14) of the plurality of units is received within the second end region of a second unit (15) of the plurality of units, and a flexible elongate member (3) extends longitudinally through the interconnected units, whereby the circumferential walls of the interconnected first and second units abut each other and the interconnected units are secured together.