Door operator

A door operator (1) comprising:

• a base plate (2) having a receiving profile (13) comprising parallel grooves (14) arranged along a direction of longitudinal extent of the base plate;
• a shaft housing (3) having shaft housing parallel projections inserted into the parallel grooves (14) of the receiving profile (13);
• a first cylinder housing (4) having first cylinder parallel projections inserted into the parallel grooves (14) of the receiving profile (13);
• a second cylinder housing (5) having second cylinder parallel projections inserted into the parallel grooves (14) of the receiving profile (13);
• a driven shaft (6) rotatably bearing-mounted in the shaft housing (3), the driven shaft (6) having a toothed wheel formed thereon;
• and
• a piston (8) linearly movably guided in the first cylinder housing (4), the piston (8) having a slot through which the driven shaft (6) projects, the slot having an inner toothed rack (11) that engages the toothed wheel,
• wherein the piston (8) and the driven shaft (6) cooperate for mutual conversion between a linear movement of the piston (8) and a rotational movement of the driven shaft (6), the mutual conversion being effected by the engagement between the toothed wheel and the inner toothed rack (11), and an energy accumulator (12) is arranged in the first cylinder housing (4) and cooperates with the piston (8), and
• wherein the first cylinder housing (4) is connected along the direction of longitudinal extent of the base plate on a first side to the shaft housing (3), and wherein the second cylinder housing (5) is connected to the shaft housing (3) along the direction of longitudinal extent of the base plate on a second side of the shaft housing opposing the first side.