A socket-shaft connection assembly for motorsport pneumatic impact wrench includes a socket-holding shaft, a socket, a fixing element for connecting the socket to the socket-holding shaft along an axis of the socket-holding shaft, wherein: the socket-holding shaft and the socket include respective grooved profiles cooperating for the torque transmission between the socket-holding shaft and the socket; the fixing element is conformed to exert a force in the direction of the axis of the socket-holding shaft to connect the socket to the socket-holding shaft; on the fixing element, on the socket-holding shaft and on the socket a plurality of coupling conical surfaces are obtained for centering said socket on said socket-holding shaft, wherein the coupling conical surfaces are distinct from the grooved profiles.

A multipurpose and universal wrench for tightening and loosening a fastener, such as a lug nut. The wrench or lug nut wrench can be adapted to lug nuts of varied sizes and shapes. The wrench includes four arms arranged in a cross shape, and three arms are functional while the fourth arm has a torque adjusting handle. Sockets can be interchangeably coupled to the three functional arms. Moreover, the arms are telescoping allowing changing the effective length of the arms. The two opposite functional arms can pivot for collapsing the wrench for storage.

A tensioning apparatus is adapted to simultaneously tension a number of jackbolts of a multi jackbolt tensioner. The tensioning apparatus may be made compact by overlapping gear disks of the spindle gears and further act as a torque multiplier between the other gears of the tensioning apparatus. The tensioning apparatus can be part of a combination with a power transfer assembly.

A driving tool includes an elongate socket body, and a non-marring cover around the socket body. The socket body includes a socket compatible with lug nuts, and a driver adaptor behind the socket. The cover is supported on the socket body for axial extension and axial retraction ahead of the socket.

A socket structure includes a socket body, an O-ring, and a carbon-fiber tube. The socket body includes a driving section and an acting section coaxially connected to the driving section. The driving section has an outside diameter greater than an outside diameter of the acting section and a stepped portion is formed in outer circumference between the driving section and the acting section. The driving section and the acting section have end faces that are recessed inwardly to form a driving hole and an acting hole, respectively. The outer circumferential surface of the acting section is formed with a circumferential groove in which the O-ring is received. The carbon-fiber tube is fit over the outer circumferential surface of the acting section of the socket body and has an end in abutting engagement with the stepped portion and an internal circumferential surface in contact with the O-ring.

An automatic wheel changer robot has a includes a drive assembly, a torque gun, a sensor assembly, and a controller. The drive assembly has a mobile base and two wheel-clamping assemblies, each configured to engage a wheel. The controller generates a set of instructions based, at least in part, on information obtained from the sensor assembly. The drive assembly uses the set of instructions to cooperatively remove respective wheels from respective hubs on a vehicle and/or attach respective wheels to respective hubs on a vehicle. The device may have lidar sensors and Mecanum wheels that the controller is programmed to use to move between respective hubs and wheel storage locations install wheels, replace wheels, rotate tires, and perform similar operations.

Clamp devices can be operated remotely to facilitate the installation, removal and other handling of wheels and tires for large vehicles. The clamp devices generally include an attachment mechanism, a gripping mechanism, an actuating link operable to move the gripping mechanism between an open and closed position, an actuator to activate the actuating link, a transmitter for sending command signals to the clamp devices for the purpose of opening or closing the gripping mechanism and a receiver for receiving such command signals.

An electric hand tool has a driving unit for driving a shaft of the electric hand tool and configured to drive, via the shaft, a socket of the electric hand tool or a socket connectable to the electric hand tool; a torque sensor for measuring a torque applied to the shaft via the driving unit; a control unit for controlling the driving unit to limit the measured torque to a predetermined value and/or to adjust the measured torque to the predetermined value within a tolerance range; and a transmitter for transmitting data from the electric hand tool to an external memory, the data comprising a final torque value. A method provides a traceable logging of a torque value and issuance of a corresponding certificate.

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.

This tool would make automotive wheel lug nut tightening an exact science, insuring precision from one job to the next. Chances for human error are minimized; once the tool is correctly applied to the lug nuts, there is no need to rely on any particular expertise from the mechanic, as the tool takes over setting the wheel properly, and then applying the final correct torque in accord with manufacturer's specification.