Abstract: An outboard wheel half has an axis and includes an outboard wheel structure configured to receive at least a portion of a tire. The outboard wheel half also includes a structure defining an alignment hole usable to align a hubcap relative to the structure. The structure defines a pocket circumferentially aligned with the alignment hole to reduce an amount of stress at a location of the alignment hole.

Abstract: A cap mounted to a mounting hole of a wheel, the mounting hole being formed to have a circumferential groove, includes: a circular body; a circular support; a circumferential projection that projects relative to an outer circumferential surface of the body in a radial direction; and a joint shaft. An outermost diameter of the circumferential projection is not more than an inner diameter of the mounting hole. The circumferential projection enters the circumferential groove of the mounting hole so that the cap is mounted to the wheel.

Abstract: A center cap is provided for a motor vehicle wheel. The center cap comprises a body having a front side and a rear side. A recess lever is carried on the rear side. An access aperture is provided in the body. The access aperture extends through the body and opens to the release lever whereby the release lever may be engaged and displaced from a lock position to a release position to allow removal of the center cap from the wheel.

Abstract: Quick-change system for wheels of an inspection crawler, in particular, of a pipe inspection and/or a sewage cleaning system comprising an adapter support and a wheel support (32), wherein the adapter support essentially is formed cylindrically, the wheel support has an essentially cylindrical and axial recess wherein the adapter support is arranged rotatably around a longitudinal axis of the quick-change system relative to the wheel support within the recess of the wheel support, and a locking means is arranged in the recess of the wheel support which cooperates with the wheel support and with the adapter support, and which locks the adapter support in a locked state against rotation around the longitudinal axis of the quick-change system relative to the wheel support.

Abstract: The invention relates to the reduction of aerodynamic drag for moving ground vehicles; specifically to an improved method and device for the reduction of aerodynamic drag of ground vehicles by reducing the mass and velocity of the flow interacting with the cavity of a wheel. The flow passing around a ground vehicle imparts a drag force to the vehicle when it interacts with a wheel. The ground vehicle class of particular interest is a tractor-trailer truck system consisting of a motorized lead vehicle pulling one or more non-motorized vehicles. The subject invention is designed to control the flow from entering the cavity of a wheel from the side of a ground vehicle system.

Abstract: A hydraulic wheel system is provided which comprises a disc, a first piston, a wheel, a tire, a dismount button, and a wheel mounting member. The disc is provided with a first cylinder and a second cylinder communicating with each other. The first piston is slidably disposed within the first cylinder. The wheel is coupled to the disc so that a rotational force of the disc is transmitted to the wheel. The dismount button is configured to move the first piston. The wheel mounting member is provided in the disc. A second piston that is slidably disposed within the second cylinder is integrated with the wheel mounting member. The wheel mounting member is elastically supported by an elastic member in a direction opposite to the predetermined direction, and it is configured to be selectively connected to the wheel in response to a movement thereof.

Abstract: An automatic jack and wheel change system having at least one inverted jack driven by an electric motor permanently attached to the vehicle. The system may employ a jack disposed between the front and rear wheel on each side of the vehicle, or it may be equipped with a jack at each of the four wheels. The system also features a novel wheel and hub-axle assembly featuring a split axle whose length may be adjusted by operation of an electric motor. The hub has a plurality of arms extending from the hub in a star-shape, each arm having a finger at its free end. The wheel has a plurality of slots defined therein so that the wheel may be removed by aligning the slots with the arms on the hub and pulling the wheel off when the axle is extended, and a plurality of holes defined therein for receiving the fingers to lock the wheel on the hub when the axle is retracted. Both the motor for raising the jack and the motor for adjusting the length of the axle may be operated by remote control.