Electric chain actuator for openable element

摘要

The actuator has a movable trolley (82) moving between two positions according to a preset trajectory (D1). An open chain (84) is engaged with the pinion and articulated on the trolley. A core (88) defines an elongated housing (L1) for guiding the chain and the trolley. The housing includes a trolley receiving zone in one of the positions. The housing is bordered by and emerged in a partial receiving cavity of two links (841, 842) of the chain, where an angle (beta) higher than 45 degrees is formed between longitudinal axes (A841, A842) of the links. The trolley is located in the receiving zone.