| 摘要 |
<p>This invention concerns a barrier drive shaft which is modularly constructed so that different modules can be added to a basic common module to flexibly create different drives to meet specific requirements of different functions. The barrier drive shaft consists of a motor-driven rotary spindle (1) along the axis (A) of which a driving element (5) is guided, which is operatively connected to a lever (10A; 10B; 10C). Said lever is offset to the axis and has a rotationally rigid connection to a barrier drive shaft (9) by means of a guide slot (12A; 12B; 12C). The slot relative to the center axis (B) of lever (10A) runs outwardly in an arc or runs parallel to the center axis (B) of lever (10B) or runs in several curves relative to the center axis (B) of lever (10C). The design of the guide slot (12A; 12B; 12C) is done according to the manner of operation chosen.</p> |
