| 摘要 |
PROBLEM TO BE SOLVED: To lift and lower a window glass under a balanced state at all times by detecting the inclination of the window glass and bringing a support shaft to a slidable state so that the inclination is removed. SOLUTION: When a carrier base section 23 is elevated along a center guide 21, a window glass 53 is lifted in a sash section under the state, in which the window glass 53 is supported to a support shaft 37. When the window glass 53 is inclined by friction at that time, a carrier body 27 is rotated, and the inclination of the window glass 53 is detected by a rotational detecting means 29 connected to a shaft 25. A control means 61 drives a motor 45, and the support shaft 37 is slid and moved in the opposite direction to the inclined direction of the window glass 53. Accordingly, since the center of gravity of the window glass 53 is shifted in the opposite direction to the inclined direction, balance is restored, and the inclination is corrected. The position of the center of gravity is moved to a place balanced in response to variously working load. |
