An automobile wheel lifting device for the installation of wheels when automobile is on a hydraulic lift. A motorized scissor lift table holds the wheel in a stable vertical position while lifting. Vertically stable position is ensured by a stabilizing arm placed on the wheel by the mechanic with one hand only, before lifting begins. Rate of lifting is such that when the wheel mounting holes are aligned with the studs the lifting can be stopped, the wheel rotated and installed. Lifting device avoids contact with the automobile body by lifting as if the mechanic lifted by hand. Stabilizing arm does not obstruct the view of the mechanic during lifting.

An apparatus and method for aligning a rim of a wheel assembly to a wheel hub. The apparatus can include a wheel handler device that is structured to securely engage the wheel assembly. The apparatus can include one or more light emitting devices that project one or more light spots on the face of the wheel hub. The position of one or more light spots relative to another light spot(s) and/or to a reference feature on the face of the hub can provide an indication of the location, orientation, and/or alignment of at least the rim relative to the wheel hub.

Provided are a quick disconnect tool and a male connector configured for removably mounting a device on a surface. The tool includes a socket, detents in the socket and a collar to open and close the detents. The male connector fits within the socket and cannot rotate within the socket. The male connector has at a first end a recess into which the detents can lock the male connector inside the socket and threads at a second end opposite the first end. Also provided is a method removably mounting a device to a surface using the quick disconnect too and the male connector.

A T-torque wrench contains: a body including a horizontal handle and a vertical extension. The vertical extension has a fitting connector formed on a bottom thereof and configured to fit with sockets of various sizes, and the vertical extension has a strain gauge arranged on one end thereof so as to detect operation torques of the T-torque wrench, the horizontal handle has a tire-pressure detection connector connected on one end thereof. The body includes a casing covered thereon and includes a digital processing unit electrically connected with the strain gauge of the vertical extension and the tire-pressure detection connector of the horizontal handle, the casing includes a display module arranged thereon and electrically connected with the digital processing unit, and the casing includes a control module arranged thereon between the display module and the horizontal handle, wherein the control module is electrically connected with the digital processing unit.

A screwing tool for an impact wrench for screwing wheel nuts onto and off from a hub body for securing a vehicle wheel, having a main body, which has an open side oriented toward the wheel nuts and which includes a hollow profile. The hollow profile has a tool contour, which is arranged on the open side and can be brought into engagement with a wheel nut contour. At least one peripheral control edge is remote from the open side for releasing a retention element. The control edge has a circular arc region with a constant control edge height h.sub.1 and a cam region with a control edge height h.sub.2 that decreases continuously and then increases again continuously. Height h.sub.1 is equal to h.sub.2 in the respective transition of the circular arc region and the cam region, such that the geometrical shape of an oval is reproduced in cross section.

Provided are a quick disconnect tool and a male connector. The tool includes a socket, detents in the socket and a collar to open and close the detents. The male connector fits within the socket and cannot rotate within the socket. The male connector includes a recess into which the detents can lock the male connector inside the socket.

A spare wheel assembly comprising a tire and a rim to which the tire is attached is disclosed. The rim includes a center mounting plate having a center bore, inner and outer opposed flanges, and a disk between the center bore and the flanges. The disk includes a pair of elongated, curved slots formed on opposite sides of the center bore. Each of the slots is an ergonomically-formed hand hold for receiving fingers of an operator's hand. The inner and outer opposed flanges of the rim define perimeters of the rim between which the tire is held. The curved slots are concentric with respect to the perimeter of the outer flange and with respect to the center bore. A centerline is formed radially through the assembly. The disk is positioned on one side of the centerline and the mounting plate is positioned on the other side of the centerline.

A system for a tire caddy and jack device to help a user easily perform tire changes on various-sized vehicles is disclosed. The Tire Caddy Jack is built using a base box supported by a plurality of casters that permits the entire Tire Caddy Jack to be moved easily around an automobile repair facility or garage. A scissor lift assembly is mounted in the center of the top surface of the base box. A scissor lift crank attaches to the scissor lift assembly that when turned will cause the scissor lift assembly to extend upwards, raising the tire and wheel above the ground. The tire and wheel rest upon rollers that are coupled to a pair of twin half roller arms mounted on top of the scissor lift assembly, permitting the tire and wheel to smoothly be raised and lowered to mount and unmount the tire and wheel onto a vehicle. The Tire Caddy Jack supports the tire and wheel while the mechanic removes or replaces the lug nuts or lug bolts that hold the tire and wheel on the vehicle.

A tire and wheel lift assembly for facilitating the removal and installation of wheel/tire assemblies for vehicles includes a rolling frame member that is generally U-shaped, having a center support member and a pair of parallel side support members. A first roller is disposed on a first side support member, and a second roller is attached to a slidable support member so that the rollers are positioned in parallel relation at the same height. The rollers are used to support a wheel/tire assembly, and the slidable support member may slide along the center support member. An adjustment mechanism controls the slidable support member, which can either raise or lower the height of the wheel/tire assembly by sliding the slidable member toward or away from the first roller.

A self-loading dolly apparatus. Each of a pair of support bars has a saddle bracket and an inside wheel assembly rigidly affixed with the support bar and offset from the vertical axis. A lift bar is secured to the saddle brackets, then raised so that an outside pair of wheel assemblies can be positioned adjacent the respective saddle bracket. The outside wheel assemblies are secured when the lift bar is raised, whereupon the inside wheel assemblies and the saddle brackets realign with the vertical axis and the support bars are angled upward.