| 摘要 |
<p>PROBLEM TO BE SOLVED: To smoothly lower and close an opening/closing member when a user switches the drive of the opening/closing member from electrical drive to manual drive, in the case where the opening/closing member cannot be electrically operated during power failure or due to failure of an electric system, etc.SOLUTION: A lifting drive device of an opening/closing member includes: a first gear 51 rotationally driven by a driving source; a second gear 52 disposed coaxially in a relatively rotatable manner to the first gear 51, and lifting and driving a movable window; a manual member 60 disposed coaxially to a first gear 51 and a second gear 52, coupled through a shaft coupling 60a coupled relatively displaceably and co-rotatably in an axial direction to one of the first gear 51 and the second gear 52, and coupled through a dog clutch 60b to be engaged and disengaged in the rotation direction relatively displaceably in the axial direction to the other thereof and according to an axial relative position; and a brake member 58 for making viscous or frictional braking force act between the first gear 51 and the second gear 52 at all times.</p> |
