Patent ID: 7137342

Claim:
A carrier moving system for moving a plurality of multi-joint type carriers in a painting process through a loaded section where a carrier is loaded with a body-in-white and an unloaded section where a carrier is not loaded with a body-in-white, wherein each carrier of the plurality of multi-joint type carriers has a driving part and a driven part, the carrier moving system comprising: a guiding monorail disposed through both the loaded section and the unloaded section so as to guide each multi-joint type carrier through both sections; a storing monorail disposed in the unloaded section and arranged in parallel with the guiding monorail; and a switching unit for switching a position of the driven part of the multi-joint type carrier between the guiding monorail and the storing monorail; wherein the driving part directly contacts and moves along the guiding monorail; wherein the guiding monorail comprises: a first removed portion formed at a predetermined portion of the guiding monorail, the predetermined portion being opposite to an entrance of the storing monorail, and a second removed portion formed at a predetermined portion of the guiding monorail, the predetermined portion being opposite to an exit of the storing monorail; wherein the switching unit comprises: a first switch located to the first removed portion, and switching the driven part to the storing monorail when the carrier comes into the storing monorail; and a second switch located to the second removed portion, and switching the driven part to the guiding monorail when the carrier goes out of the storing monorail.