Back-worn implement with a drive motor and a blower driven by the drive motor

摘要

A back-worn implement has a back support (3) with a back plate (4) and a bottom plate (5). The bottom plate (5) has at least one passage opening, is sucked by the working air from a fan (13) of the working device from a bottom (36) of the bottom plate (5) on an upper surface (35) of the bottom plate (5). On the underside (36) of the bottom plate (5) run ribs (33, 34), the upper side (35) facing away from end faces (39) form a contact surface (40) for sucked leaves. On the underside (36) of the bottom plate (5) at least one suction opening (30) is arranged, via which the working air flow is sucked by the fan (13) from the environment through the at least one passage opening. The at least one suction opening (30) lies between the end faces (39) of the ribs (33, 34) in the contact surface and is at least one on the fan (13) facing side of the contact surface (40) lying flow connection with the at least one Passage opening connected. The implement has a suction area which is the sum of the areas of all the suction openings (30) and which is at least 50% of the area of the underside (36) of the bottom plate (5).