Robot arm provided with a cable arrangement, and industrial robot utilizing the same

摘要

A cable arrangement for a robot arm is provided, which includes a rotation arm (2) and a line member (8) such as a power cable. The rotation arm (2) has a front end and a base end, the front end being provided with a swing shaft, the base end being provided with a rotational shaft (7) rotatable about a longitudinal axis (2a). The line member (8) extends from the base end toward the front end of the arm (2). The rotational shaft (7) includes a line offset member (35) formed with at least one through-hole (36) for passing the line member (8). The through-hole as a whole is offset from the axis (2a) of the rotational shaft (7).