| 摘要 |
PROBLEM TO BE SOLVED: To provide a movement mechanism device capable of stopping and maintaining a moving member so as to prevent generation of abnormal sound at an end of a moving path.SOLUTION: A moving member (5) is reciprocally moved on a specified path. A moving mechanism device includes a power transmission section (6) including a motor (M), a worm (A1) mounted on a rotary shaft thereof, a rack (5a) provided in the moving member (5), a gear train (HG) for transmitting rotary force of the worm (A1) to the rack (5a) and a control section (SG) for controlling voltage applied to the motor (M), and an abutting section (1d) for specifying one terminal position (X0) of the path by abutting on the moving member (5). The control section (SG) makes applied voltage (Vt2) on and after a distance between the moving member (5) and the abutting section (1d) reaches a prescribed value lower than applied voltage (Vt1) to the motor (M) before the distance is reduced and becomes the prescribed value while moving the moving member (5) from the other side toward the one terminal (X0). The voltage (Vt2) is applied to the motor (M) to energize the abutting section (1d) by the moving member (5) for a prescribed time (&Dgr;t2) from a point of time (t2) when the moving member (5) abuts on the abutting section (1d). |
