| 摘要 |
PROBLEM TO BE SOLVED: To stabilize a posture around an axis X of a carriage 5 supported slidably astride a first guide member 22 and a second guide member 23 on a plate. SOLUTION: Among a tension F1 to a timing belt 24 at a belt link part 63, both a component of force in a direction of an axis Z and a self weight of the carriage 5 act in a downward direction of the axis Z (vertical) to a first sliding face 51 of the first guide member 22 and a second sliding face 52 of the second guide member 23 via a first sliding projection 55a and a second sliding projection 55b. As shown in Fig. 10, a position of the center of gravity G of the carriage 5 is present in the middle of the first sliding projection 55a and the second sliding projection 55b. Therefore, the carriage 5 can be stably supported by the first guide member 22 and the second guide member 23 when the carriage 5 stands still and also when the carriage moves in the direction of the axis X at a constant velocity. COPYRIGHT: (C)2007,JPO&INPIT |
