Collecting bag for a suction apparatus

A collecting bag for receiving material to be collected, the collecting bag comprising:

• a woven-fabric cloth delimiting a receiving space, wherein the receiving space is delimited by outer edges of the collecting bag;
• said woven-fabric cloth being at least partially air-permeable;
• said receiving space having an inlet opening for a conveying airflow which supplies the material to be collected and an outlet opening for at least partially discharging the conveying airflow into the environment;
• said receiving space having a closable emptying opening for retrieving the material to be collected;
• said inlet opening being provided on a first edge of the outer edges of the collecting bag;
• said emptying opening being provided on a second edge of the outer edges of the collecting bag, wherein said second edge of the outer edges is opposite to said first edge of the outer edges;
• said first edge of the outer edges and said second edge of the outer edges being opposite one another at a spacing and connected to one another by way of a first longitudinal edge of the outer edges of the collecting bag and a second longitudinal edge of the outer edges of the collecting bag;
• said outlet opening for at least partially discharging the conveying airflow being disposed in a side wall of the collecting bag, between said emptying opening and said inlet opening;
• said outlet opening being assigned a closure element which in a closure position completely closes the outlet opening;
• said outlet opening being formed by a fabric net which is held in said side wall;
• said closure element is a closure cloth which covers said fabric net in a planar manner;
• said closure cloth being attached to said side wall except at an outflow opening;
• an opening edge of said closure element that delimits said outflow opening being reinforced with a flat bar;
• and,
• said flat bar in a longitudinal direction thereof being divided into at least two mutually separate segments.