| 摘要 |
PROBLEM TO BE SOLVED: To absorb the unbalance of a load and the installation error of rails, in a double rail carrier installed over the ground. SOLUTION: A carriage support structure is provided for the double rail carrier installed over the ground traveling on a double rail having a main rail and a sub rail which are installed over the ground. On a main rail side, main roller units arranged at two front/rear positions in a rail longitudinal direction support a carriage to be rotatable around a vertical shaft via left and right hinges rotatable in a rail width direction. On a sub rail side, sub roller units arranged at two front/rear positions of a lower sub frame extending in the rail longitudinal direction support the carriage to be rotatable around the vertical shaft, an upper sub frame continuous from the carriage is provided on the upper side of the lower sub frame, and front and rear hinges rotatable in the rail longitudinal direction support the longitudinal central portion of the upper sub frame on the lower sub frame. COPYRIGHT: (C)2010,JPO&INPIT |
