A split offset axle joins a front cycle wheel to a first and a second fork of a cycle. The axle has two rigid structures joined together with a fastener to form a singular axle. The axle has a cylindrical first end, a cylindrical second end and a cylindrical offset center section. The center section locates and supports a cycle wheel hub. The first and the second ends are housed in a pinchable split axle housing of the first and the second fork, respectively. Rotation of the axle adjusts the center section axis to a plurality of positions relative to the forks. The center section is adjusted to a desired position, thereby adjusting the cycle's steering and handling characteristics, the desired position is secured with pinched split axle housings. The pinched split axle housings rotationally and rigidly secure the respective axle ends.

The present invention relates to an online roundness correcting device for a semifinished wheel, which consists of a jacking and rotating system, a left correcting system, a right correcting system and a central locating system. According to the online roundness correcting device provided by the present invention, in service, an online roundness correcting function for the semifinished wheel can be achieved, and the corrected wheel has good roundness and cylindricity, so that not only can the labor intensity for workers be lowered, but also the online roundness correcting device has the characteristics of high degree of automation, advanced process, simple structure and safe and stable performance.

Disclosed is a mobile robot adapted to traverse vertical obstacles. The robot comprises a frame and at least one wheel positioned in a front section of the robot, at least two middle wheels and at least two rear wheels. The at least one middle wheel and at least one rear wheel are connected by a tilting lever that is arranged on each of the opposing sides of or to the frame, forming a pair of wheels. Each tilting lever can be turned around a lever bearing located between the respective axial centers of rotation of each pair of wheels.

The present invention relates to an online roundness correcting device for a semifinished wheel, which consists of a jacking and rotating system, a left correcting system, a right correcting system and a central locating system. According to the online roundness correcting device provided by the present invention, in service, an online roundness correcting function for the semifinished wheel can be achieved, and the corrected wheel has good roundness and cylindricity, so that not only can the labor intensity for workers be lowered, but also the online roundness correcting device has the characteristics of high degree of automation, advanced process, simple structure and safe and stable performance.