Joy Global Underground Mining LLC

Jianjun Han

Francois Nortje

Nathan Weckerly

A wheel unit for a vehicle includes a main housing configured to be coupled to a chassis of the vehicle, the main housing including first and second control arms. A transmission housing includes a body having first and second protrusions extending from the body, the first protrusion partially defining a first cavity that receives a portion of the first control arm, and the second protrusion partially defining a second cavity that receives a portion of the second control arm. A first pin is coupled between the first protrusion of the transmission housing and the first control arm of the main housing. A second pin is coupled between the second protrusion of the transmission housing and the second control arm of the main housing, the first and second pins defining a steering axis. The transmission housing is pivotably coupled to the main housing about the steering axis.

Coupling between a steerable wheel and a housing in a vehicle wheel unit

A jack for a vehicle includes a tube configured to be coupled to a chassis, and a cylinder assembly supported by the tube. The cylinder assembly includes a barrel and a rod at least partially received within the barrel. Actuation of the cylinder assembly causes the barrel to move relative to the tube in a first direction parallel to a longitudinal axis of the tube while the rod remains stationary relative to the tube. In some aspects, the jack further includes a locking device selectively received within the tube in a locked position. The locking device intersects the barrel's path to inhibit movement of the barrel in a second direction opposite the first direction when the locking device is in the locked position.

Growing community of inventors

Gracemere, Australia

Jianjun Han